1  369 159 AN ANDROGEN-DEPENDENT SEXUAL DIMORPHISM VISIBLE AT PUBERTY IN THE RAT HYPOTHALAMUS. MORPHOLOGICAL STUDIES IN RODENTS HAVE WELL DOCUMENTED THE MASCULINIZATION OF THE PERINATAL BRAIN BY ESTRADIOL DERIVED FROM AROMATIZED TESTOSTERONE, AND THE RESULTING IRREVERSIBLE QUANTITATIVE SEX-DIFFERENCES GENERATED IN CELL NUMBERS OR EXPRESSION OF CHEMICAL PHENOTYPES. HERE, USING IMMUNOHISTOCHEMISTRY, WE EXPLORED HOW THIS APPLIES TO THE POSTNATAL DEVELOPMENT AND MASCULINIZATION OF THE NEUROKININ B (NKB)-CONTAINING SYSTEM OF THE ARCUATE NUCLEUS/MEDIAN EMINENCE COMPLEX (ARC/ME). IN ADULT RATS, NKB-IMMUNOREACTIVE NEURONS EXHIBIT AN UNUSUAL, QUALITATIVE SEXUAL DIMORPHISM OF THEIR VENTRAL AXONAL PROJECTIONS: TO THE NEUROPIL IN FEMALES, TO CAPILLARY VESSELS IN MALES. IN ADULTS, THERE WAS NO SEX-DIFFERENCE IN THE NUMBERS OF NKB-IMMUNOREACTIVE PERIKARYA OR CAPILLARY VESSELS IN THE ARC/ME, SUGGESTING THAT THIS SEXUAL DIMORPHISM CANNOT BE EXPLAINED BY THE EXISTENCE OF SUPERNUMERARY STRUCTURES. AT BIRTH (DAY 0) THE NKB SYSTEM WAS IMMATURE IN BOTH SEXES, AND WHILE ITS ADULT FEATURES EMERGED PROGRESSIVELY UNTIL PUBERTY IN FEMALES, THEY DID NOT DEVELOP BEFORE PUBERTY (DAY 40) IN MALES, REVEALING A SEXUAL DIMORPHISM ONLY LATE POSTNATALLY. WHEN MALES WERE ORCHIDECTOMIZED AT DAY 30, THE MASCULINE DISTRIBUTION OF NKB-IMMUNOREACTIVE AXONS EXPECTED AT DAY 40 WAS NOT SEEN, WHILE IT WAS APPARENT AFTER CHRONIC TREATMENT WITH TESTOSTERONE OR DIHYDROTESTOSTERONE, SUGGESTING A TESTICULAR MASCULINIZING ACTION VIA ANDROGEN RECEPTORS AT PUBERTY. MOREOVER IN THESE PREPUBERTAL-ORCHIDECTOMIZED MALES, THE DISTRIBUTION OF NKB-IMMUNOREACTIVE AXONS WAS SURPRISINGLY FEMINIZED BY CHRONIC ESTRADIOL ALONE, SUGGESTING THAT NKB NEURONS ARE NOT IRREVERSIBLY PROGRAMMED BEFORE PUBERTY. LAST, IN ADULT FEMALES, THE DISTRIBUTION OF NKB-IMMUNOREACTIVE AXONS WAS FEMININE 30 DAYS AFTER OVARIECTOMY, AND IT WAS MASCULINIZED AFTER CONCURRENT CHRONIC DIHYDROTESTOSTERONE, SUGGESTING THAT NKB NEURONS REMAIN RESPONSIVE TO ANDROGENS LATE IN REPRODUCTIVE LIFE. THUS, THE SEXUAL DIFFERENTIATION OF THE HYPOTHALAMUS PROCEEDS WELL BEYOND THE PERINATAL PERIOD AND INCLUDES THE EPIGENETIC ACTION OF NON-AROMATIZABLE ANDROGENS UPON SUBSETS OF NEURONS THAT HAVE RETAINED BIPOTENT FEATURES.	2007	
                                                                                                                                                                                                                                                                                                                                                                                                   
2 5205  32 PRENATAL STRESS CHANGES THE GLYCOPROTEIN GPM6A GENE EXPRESSION AND INDUCES EPIGENETIC CHANGES IN RAT OFFSPRING BRAIN. PRENATAL STRESS (PS) EXERTS STRONG IMPACT ON FETAL BRAIN DEVELOPMENT AND ON ADULT OFFSPRING BRAIN FUNCTIONS. PREVIOUS WORK DEMONSTRATED THAT CHRONIC STRESS ALTERS THE MRNA EXPRESSION OF GPM6A, A NEURONAL GLYCOPROTEIN INVOLVED IN FILOPODIUM EXTENSION. IN THIS WORK, WE ANALYZED THE EFFECT OF PS ON GPM6A EXPRESSION AND THE EPIGENETIC MECHANISMS INVOLVED. PREGNANT WISTAR RATS RECEIVED RESTRAINT STRESS DURING THE LAST WEEK OF GESTATION. MALE OFFSPRING WERE SACRIFICED ON POSTNATAL DAYS 28 AND 60. HIPPOCAMPUS AND PREFRONTAL CORTEX SAMPLES WERE ANALYZED FOR GENE EXPRESSION (QPCR FOR MRNAS AND MICRORNAS), METHYLATION STATUS (BISULFITE CONVERSION) AND PROTEIN LEVELS. HIPPOCAMPAL NEURONS IN CULTURE WERE USED TO ANALYZE MICRORNA OVEREXPRESSION EFFECTS. PRENATAL STRESS INDUCED CHANGES IN GPM6A LEVELS IN BOTH TISSUES AND AT BOTH AGES ANALYZED, INDICATING A PERSISTENT EFFECT. TWO CPG ISLANDS IN THE GPM6A GENE WERE IDENTIFIED. VARIATIONS IN THE METHYLATION PATTERN AT THREE SPECIFIC CPGS WERE FOUND IN HIPPOCAMPUS, BUT NOT IN PFC SAMPLES FROM PS OFFSPRING. MICRORNAS PREDICTED TO TARGET GPM6A WERE IDENTIFIED IN SILICO. QPCR MEASUREMENTS SHOWED THAT PS MODIFIED THE EXPRESSION OF SEVERAL MICRORNAS IN BOTH TISSUES, BEING MICRORNA-133B THE MOST SIGNIFICANTLY ALTERED. FURTHER STUDIES OVEREXPRESSING THIS MICRORNA IN NEURONAL CULTURES SHOWED A REDUCTION IN GMP6A MRNA AND PROTEIN LEVEL. MOREOVER FILOPODIUM DENSITY WAS ALSO REDUCED, SUGGESTING THAT GPM6A FUNCTION WAS AFFECTED. GESTATIONAL STRESS AFFECTED GPM6A GENE EXPRESSION IN OFFSPRING LIKELY THROUGH CHANGES IN METHYLATION STATUS AND IN POSTTRANSCRIPTIONAL REGULATION BY MICRORNAS. THUS, OUR FINDINGS PROPOSE GPM6A AS A NOVEL TARGET FOR EPIGENETIC REGULATION DURING PRENATAL STRESS.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
3 6594  25 TUMOR-AUGMENTING EFFECTS OF GESTATIONAL ARSENIC EXPOSURE ON F1 AND F2 IN MICE. THE CONSEQUENCES OF EARLY-LIFE EXPOSURE TO CHEMICALS IN THE ENVIRONMENT ARE EMERGING CONCERNS. CHRONIC EXPOSURE TO NATURALLY OCCURRING INORGANIC ARSENIC HAS BEEN KNOWN TO CAUSE VARIOUS ADVERSE HEALTH EFFECTS, INCLUDING CANCERS, IN HUMANS. ON THE OTHER HAND, ANIMAL STUDIES BY DR. M. WAALKES' GROUP REPORTED THAT ARSENITE EXPOSURE OF PREGNANT F0 FEMALES, ONLY FROM GESTATIONAL DAY 8 TO 18, INCREASED HEPATIC TUMORS IN THE F1 (ARSENITE-F1) MALES OF C3H MICE, WHOSE MALES TEND TO DEVELOP SPONTANEOUS HEPATIC TUMORS LATER IN LIFE. SINCE THIS MICE MODEL ILLUMINATED NOVEL UNIDENTIFIED CONSEQUENCES OF ARSENIC EXPOSURE, WE WISHED TO FURTHER INVESTIGATE THE BACKGROUND MECHANISMS. IN THE SAME EXPERIMENTAL MODEL, WE IDENTIFIED A VARIETY OF FACTORS THAT WERE AFFECTED BY GESTATIONAL ARSENIC EXPOSURE, INCLUDING EPIGENETIC AND GENETIC CHANGES, AS POSSIBLE CONSTITUENTS OF MULTIPLE STEPS OF LATE-ONSET HEPATIC TUMOR AUGMENTATION IN ARSENITE-F1 MALES. FURTHERMORE, OUR STUDY DISCOVERED THAT THE F2 MALES BORN TO ARSENITE-F1 MALES DEVELOPED HEPATIC TUMORS AT A SIGNIFICANTLY HIGHER RATE THAN THE CONTROL F2 MALES. THE RESULTS IMPLY THAT THE TUMOR AUGMENTING EFFECT IS INHERITED BY ARSENITE-F2 MALES THROUGH THE SPERM OF ARSENITE-F1. IN THIS ARTICLE, WE SUMMARIZED OUR STUDIES ON THE CONSEQUENCES OF GESTATIONAL ARSENITE EXPOSURE IN F1 AND F2 MICE TO DISCUSS NOVEL ASPECTS OF BIOLOGICAL EFFECTS OF GESTATIONAL ARSENIC EXPOSURE.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
4 4736  32 NOVEL EPIGENETIC BIOMARKERS MEDIATING BISPHENOL A EXPOSURE AND METABOLIC PHENOTYPES IN FEMALE MICE. THERE IS COMPELLING EVIDENCE THAT EPIGENETIC MODIFICATIONS LINK DEVELOPMENTAL ENVIRONMENTAL INSULTS TO ADULT DISEASE SUSCEPTIBILITY. ANIMAL STUDIES HAVE ASSOCIATED PERINATAL BISPHENOL A (BPA) EXPOSURE TO ALTERED DNA METHYLATION, BUT THESE STUDIES ARE OFTEN LIMITED TO CANDIDATE GENE AND GLOBAL NON-LOCI-SPECIFIC APPROACHES. BY USING AN EPIGENOME-WIDE DISCOVERY PLATFORM, WE ELUCIDATED EPIGENETIC ALTERATIONS IN LIVER TISSUE FROM ADULT MICE OFFSPRING (10 MONTHS) FOLLOWING PERINATAL BPA EXPOSURE AT HUMAN PHYSIOLOGICALLY RELEVANT DOSES (50-NG, 50-MUG, AND 50-MG BPA/KG DIET). BIOLOGICAL PATHWAY ANALYSIS IDENTIFIED AN ENRICHMENT OF SIGNIFICANT DIFFERENTIALLY METHYLATED REGIONS IN METABOLIC PATHWAYS AMONG FEMALES. FURTHERMORE, THROUGH THE USE OF TOP ENRICHED BIOLOGICAL PATHWAYS, 4 CANDIDATE GENES WERE CHOSEN TO ASSESS DNA METHYLATION AS A MEDIATING FACTOR LINKING THE ASSOCIATION OF PERINATAL BPA EXPOSURE TO METABOLIC PHENOTYPES PREVIOUSLY OBSERVED IN FEMALE OFFSPRING. DNA METHYLATION STATUS AT JANUS KINASE-2 (JAK-2), RETINOID X RECEPTOR (RXR), REGULATORY FACTOR X-ASSOCIATED PROTEIN (RFXAP), AND TRANSMEMBRANE PROTEIN 238 (TMEM238) WAS USED WITHIN A MEDIATIONAL REGRESSION ANALYSIS. DNA METHYLATION IN ALL FOUR OF THE CANDIDATE GENES WAS IDENTIFIED AS A MEDIATOR IN THE MECHANISTIC PATHWAY OF DEVELOPMENTAL BPA EXPOSURE AND FEMALE-SPECIFIC ENERGY EXPENDITURE, BODY WEIGHT, AND BODY FAT PHENOTYPES. DATA GENERATED FROM THIS STUDY ARE CRUCIAL FOR DECIPHERING THE MECHANISTIC ROLE OF EPIGENETICS IN THE PATHOGENESIS OF CHRONIC DISEASE AND THE DEVELOPMENT OF EPIGENETIC-BASED PREVENTION AND THERAPEUTIC STRATEGIES FOR COMPLEX HUMAN DISEASE.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
5 3325  33 HISTONE DEACETYLASE 2-MEDIATED EPIGENETIC REGULATION IS INVOLVED IN THE EARLY ISOFLURANE EXPOSURE-RELATED INCREASE IN SUSCEPTIBILITY TO ANXIETY-LIKE BEHAVIOUR EVOKED BY CHRONIC VARIABLE STRESS IN MICE. INCREASING STUDIES REPORT THAT PROLONGED OR MULTIPLE ANAESTHETIC EXPOSURES EARLY IN LIFE ARE ASSOCIATED WITH DETRIMENTAL EFFECTS ON BRAIN FUNCTION. ALTHOUGH STUDIES HAVE EVALUATED THE DETRIMENTAL EFFECTS ON NEUROCOGNITIVE FUNCTION, FEW HAVE FOCUSED ON LONG-TERM NEUROPSYCHIATRIC EFFECTS. IN THE PRESENT STUDY, C57BL/6 MICE RECEIVED EITHER THREE NEONATAL ISOFLURANE EXPOSURES OR CONTROL EXPOSURE. STARTING ON POSTNATAL DAY 45, THE MICE WERE EITHER EXPOSED OR NOT TO A CHRONIC VARIABLE STRESS (CVS) PARADIGM, AND CVS-RELATED NEUROPSYCHIATRIC PERFORMANCE WAS EVALUATED USING A SERIES OF BEHAVIOURAL TESTS. THE EXPRESSION LEVELS OF HISTONE 3 LYSINE 9 ACETYLATION (ACETYL-H3K9), BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF), CAMP RESPONSE ELEMENT-BINDING PROTEIN-BINDING PROTEIN, AND HISTONE DEACETYLASES 1-4 IN THE AMYGDALA WERE MEASURED BY IMMUNOBLOTTING OR IMMUNOHISTOCHEMISTRY ANALYSIS. IN MICE WITH NEONATAL ISOFLURANE EXPOSURE, THE EFFECTS OF SODIUM BUTYRATE (NAB), A COMMONLY USED HDAC INHIBITOR, WERE EXAMINED ON CVS-RELATED BEHAVIOURAL AND MOLECULAR ALTERATIONS. THE RESULTS SHOWED THAT REPEATED NEONATAL ISOFLURANE EXPOSURE DID NOT AFFECT INNATE DEPRESSION-LIKE AND ANXIETY-LIKE BEHAVIOURS UNDER NON-STRESS CONDITIONS BUT FACILITATED THE CVS-INDUCED ANXIETY-LIKE BEHAVIOURAL PHENOTYPE. INCREASED HDAC2 EXPRESSION IN THE AMYGDALA WAS ASSOCIATED WITH AN INCREASE IN THE CVS-INDUCED REPRESSION OF ACETYL-H3K9 AND BDNF EXPRESSION AND AN ENHANCED CVS-EVOKED ANXIETY-LIKE BEHAVIOURAL PHENOTYPE IN MICE NEONATAL ISOFLURANE EXPOSURE. NAB SIGNIFICANTLY DECREASED THE CVS-INDUCED ANXIETY LEVEL BY ELEVATING ACETYL-H3K9 AND BDNF EXPRESSION. THESE RESULTS SUGGESTED THAT EARLY ANAESTHESIA EXPOSURE FACILITATED CHRONIC STRESS-INDUCED NEUROPSYCHIATRIC OUTCOMES, AND THE HDAC2-RELATED EPIGENETIC DYSREGULATION OF BDNF GENE EXPRESSION IS INVOLVED IN THE UNDERLYING MECHANISM.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
6  905  24 CHRONIC EXPOSURE TO CANNABINOIDS DURING ADOLESCENCE CAUSES LONG-LASTING BEHAVIORAL DEFICITS IN ADULT MICE. REGULAR USE OF MARIJUANA DURING ADOLESCENCE ENHANCES THE RISK OF LONG-LASTING NEUROBIOLOGICAL CHANGES IN ADULTHOOD. THE PRESENT STUDY WAS AIMED AT ASSESSING THE EFFECT OF LONG-TERM ADMINISTRATION OF THE SYNTHETIC CANNABINOID WIN55212.2 DURING ADOLESCENCE IN YOUNG ADULT MICE. ADOLESCENT MICE AGED 5 WEEKS WERE SUBJECTED DAILY TO THE PHARMACOLOGICAL ACTION OF WIN55212.2 FOR 3 WEEKS AND WERE THEN LEFT UNDISTURBED IN THEIR HOME CAGE FOR A 5-WEEK PERIOD AND FINALLY EVALUATED BY BEHAVIORAL TESTING. MICE THAT RECEIVED THE DRUG DURING ADOLESCENCE SHOWED MEMORY IMPAIRMENT IN THE MORRIS WATER MAZE, AS WELL AS A DOSE-DEPENDENT MEMORY IMPAIRMENT IN FEAR CONDITIONING. IN ADDITION, THE ADMINISTRATION OF 3 MG/KG WIN55212.2 IN ADOLESCENCE INCREASED ADULT HIPPOCAMPAL AEA LEVELS AND PROMOTED DNA HYPERMETHYLATION AT THE INTRAGENIC REGION OF THE INTRACELLULAR SIGNALING MODULATOR RGS7, WHICH WAS ACCOMPANIED BY A LOWER RATE OF MRNA TRANSCRIPTION OF THIS GENE, SUGGESTING A POTENTIAL CAUSAL RELATION. ALTHOUGH THE CONCRETE MECHANISMS UNDERLYING THE BEHAVIORAL OBSERVATIONS REMAIN TO BE ELUCIDATED, WE DEMONSTRATE THAT LONG-TERM ADMINISTRATION OF 3 MG/KG OF WIN DURING ADOLESCENCE LEADS TO INCREASED ENDOCANNABINOID LEVELS AND ALTERED RGS7 EXPRESSION IN ADULTHOOD AND ESTABLISH A POTENTIAL LINK TO EPIGENETIC CHANGES.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
7 5464  27 RESILIENCE IN LONG-TERM VIRAL INFECTION: GENETIC DETERMINANTS AND INTERACTIONS. VIRUS-INDUCED NEUROLOGICAL SEQUELAE RESULTING FROM INFECTION BY THEILER'S MURINE ENCEPHALOMYELITIS VIRUS (TMEV) ARE USED FOR STUDYING HUMAN CONDITIONS RANGING FROM EPILEPTIC SEIZURES TO DEMYELINATING DISEASE. MOUSE STRAINS ARE TYPICALLY CONSIDERED SUSCEPTIBLE OR RESISTANT TO TMEV INFECTION BASED ON VIRAL PERSISTENCE AND EXTREME PHENOTYPES, SUCH AS DEMYELINATION. WE HAVE IDENTIFIED A BROADER SPECTRUM OF PHENOTYPIC OUTCOMES BY INFECTING STRAINS OF THE GENETICALLY DIVERSE COLLABORATIVE CROSS (CC) MOUSE RESOURCE. WE EVALUATED THE CHRONIC-INFECTION GENE EXPRESSION PROFILES OF HIPPOCAMPI AND THORACIC SPINAL CORDS FOR 19 CC STRAINS IN RELATION TO PHENOTYPIC SEVERITY AND TMEV PERSISTENCE. STRAINS WERE CLUSTERED BASED ON SIMILAR PHENOTYPIC PROFILES AND TMEV LEVELS AT 90 DAYS POST-INFECTION, AND WE CATEGORIZED DISTINCT TMEV RESPONSE PROFILES. THE THREE MOST COMMON PROFILES INCLUDED "RESISTANT" AND "SUSCEPTIBLE," AS BEFORE, AS WELL AS A "RESILIENT" TMEV RESPONSE GROUP WHICH EXPERIENCED BOTH TMEV PERSISTENCE AND MILD NEUROLOGICAL PHENOTYPES EVEN AT 90 DAYS POST-INFECTION. EACH PROFILE HAD A DISTINCT GENE EXPRESSION SIGNATURE, ALLOWING THE IDENTIFICATION OF PATHWAYS AND NETWORKS SPECIFIC TO EACH TMEV RESPONSE GROUP. CC FOUNDER HAPLOTYPES FOR GENES INVOLVED IN THESE PATHWAYS/NETWORKS REVEALED CANDIDATE RESPONSE-SPECIFIC ALLELES. THESE ALLELES DEMONSTRATED PLEIOTROPY AND EPIGENETIC (MIRNA) REGULATION IN LONG-TERM TMEV INFECTION, WITH PARTICULAR RELEVANCE FOR RESILIENT MOUSE STRAINS.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
8  998  34 CHRONIC SUBCONVULSIVE ACTIVITY DURING EARLY POSTNATAL LIFE PRODUCES AUTISTIC BEHAVIOR IN THE ABSENCE OF NEUROTOXICITY IN THE JUVENILE WEANLING PERIOD. THE DIAGNOSIS OF AUTISM SPECTRUM DISORDER (ASD) VARIES FROM VERY MILD TO SEVERE SOCIAL AND COGNITIVE IMPAIRMENTS. WE HYPOTHESIZED THAT EPIGENETIC SUBCONVULSIVE ACTIVITY IN EARLY POSTNATAL LIFE MAY CONTRIBUTE TO THE DEVELOPMENT OF AUTISTIC BEHAVIOR IN A SEX-RELATED MANNER. LOW DOSES OF KAINIC ACID (KA) (25-100 MUG) WERE ADMINISTERED TO RAT PUPS FOR 15 DAYS BEGINNING ON POSTNATAL (P) DAY 6 TO CHRONICALLY ELEVATE NEURONAL ACTIVITY. A BATTERY OF CLASSICAL AND NOVEL BEHAVIORAL TESTS WAS USED, AND SEX DIFFERENCES WERE OBSERVED. OUR NOVEL OPEN HANDLING TEST REVEALED THAT ASD MALES NOSE POKED MORE OFTEN AND ASD FEMALES CLIMBED AND ESCAPED MORE FREQUENTLY WITH AGE. IN THE SOCIAL INTERACTION TEST, ASD MALES WERE LESS SOCIAL THAN ASD FEMALES WHO WERE MORE ANXIOUS IN HANDLING AND ELEVATED PLUS MAZE (EPM) TASKS. TO EVALUATE GROUP DYNAMICS, SIBLING AND NON-SIBLING CONTROL AND EXPERIMENTAL ANIMALS EXPLORED 3 DIFFERENT SHAPED NOVEL SOCIAL ENVIRONMENTS. CONTROL PUPS HUDDLED QUICKLY AND MORE FREQUENTLY IN ALL ENVIRONMENTS WHETHER THEY SOCIALIZED WITH LITTERMATES OR NON-SIBLINGS COMPARED TO ASD GROUPS. NON-SIBLING ASD PUPS WERE ERRATIC AND HUDDLED IN SMALLER GROUPS. IN THE OBJECT RECOGNITION TEST, ONLY ASD MALES SPENT LESS TIME WITH THE NOVEL OBJECT COMPARED TO CONTROL PUPS. DATA SUGGEST THAT CHRONIC SUBCONVULSIVE ACTIVITY IN EARLY POSTNATAL LIFE LEADS TO AN ASD PHENOTYPE IN THE ABSENCE OF CELL DEATH. MALES WERE MORE SUSCEPTIBLE TO DEVELOPING ASOCIAL BEHAVIORS AND COGNITIVE PATHOLOGIES, WHEREAS FEMALES WERE PRONE TO HIGHER LEVELS OF HYPERACTIVITY AND ANXIETY, VALIDATING OUR POSTNATAL ASD MODEL APPARENT IN THE PRE-JUVENILE PERIOD.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
9 2776  34 EXTRAUTERINE GROWTH RESTRICTION ON PULMONARY VASCULAR ENDOTHELIAL DYSFUNCTION IN ADULT MALE RATS: THE ROLE OF EPIGENETIC MECHANISMS. OBJECTIVE: EARLY POSTNATAL LIFE IS CONSIDERED AS A CRITICAL TIME WINDOW FOR THE DETERMINATION OF LONG-TERM METABOLIC STATES AND ORGAN FUNCTIONS. EXTRAUTERINE GROWTH RESTRICTION (EUGR) CAUSES THE DEVELOPMENT OF ADULT-ONSET CHRONIC DISEASES, INCLUDING PULMONARY HYPERTENSION. HOWEVER, THE EFFECTS OF NUTRITIONAL DISADVANTAGES DURING THE EARLY POSTNATAL PERIOD ON PULMONARY VASCULAR CONSEQUENCES IN LATER LIFE ARE NOT FULLY UNDERSTOOD. OUR STUDY WAS DESIGNED TO TEST WHETHER EPIGENETICS DYSREGULATION MEDIATES THE CELLULAR MEMORY OF THIS EARLY POSTNATAL EVENT. METHODS AND RESULTS: TO TEST THIS HYPOTHESIS, WE ISOLATED PULMONARY VASCULAR ENDOTHELIAL CELLS BY MAGNETIC-ACTIVATED CELL SORTING FROM EUGR AND CONTROL RATS. A POSTNATAL INSULT, NUTRITIONAL RESTRICTION-INDUCED EUGR CAUSED DEVELOPMENT OF AN INCREASED PULMONARY ARTERY PRESSURE AT 9 WEEKS OF AGE IN MALE SPRAGUE-DAWLEY RATS. METHYL-DNA IMMUNE PRECIPITATION CHIP, GENOME-SCALE MAPPING STUDIES TO SEARCH FOR DIFFERENTIALLY METHYLATED LOCI BETWEEN CONTROL AND EUGR RATS, REVEALED SIGNIFICANT DIFFERENCE IN CYTOSINE METHYLATION BETWEEN EUGR AND CONTROL RATS. EUGR CHANGES THE CYTOSINE METHYLATION AT APPROXIMATELY 500 LOCI IN MALE RATS AT 9 WEEKS OF AGE, PRECEDING THE DEVELOPMENT OF PULMONARY HYPERTENSION AND THESE REPRESENT THE CANDIDATE LOCI FOR MEDIATING THE PATHOGENESIS OF PULMONARY VASCULAR DISEASE THAT OCCURS LATER IN LIFE. GENE ONTOLOGY ANALYSIS ON DIFFERENTIALLY METHYLATED GENES SHOWED THAT HYPERMETHYLATED GENES IN EUGR ARE VASCULAR DEVELOPMENT-ASSOCIATED GENES AND HYPOMETHYLATED GENES IN EUGR ARE LATE-DIFFERENTIATION-ASSOCIATED AND SIGNAL TRANSDUCTION GENES. WE VALIDATED CANDIDATE DYSREGULATED LOCI WITH THE QUANTITATIVE ASSAYS OF CYTOSINE METHYLATION AND GENE EXPRESSIONS. CONCLUSION: THESE RESULTS DEMONSTRATE THAT EPIGENETICS DYSREGULATION IS A STRONG MECHANISM FOR PROPAGATING THE CELLULAR MEMORY OF EARLY POSTNATAL EVENTS, CAUSING CHANGES IN THE EXPRESSION OF GENES AND LONG-TERM SUSCEPTIBILITY TO PULMONARY HYPERTENSION, AND FURTHER PROVIDING A NEW INSIGHT INTO THE PREVENTION AND TREATMENT OF EUGR-RELATED PULMONARY HYPERTENSION.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                       
10 2886  25 GABA-AALPHA5 MIGHT BE INVOLVED IN LEARNING-MEMORY DYSFUNCTION IN THE OFFSPRINGS OF CHRONIC ETHANOL-TREATED RATS VIA GABA-AALPHA5 HISTONE H3K9 ACETYLATION. RECENTLY, NUMEROUS STUDIES HAVE BEEN FOCUSED ON THE RELATIONSHIP BETWEEN GABA-A RECEPTORS AND ALCOHOL-INDUCED SPATIAL LEARNING AND MEMORY DEFICITS. GABA-AALPHA5, A SUBUNIT OF GABA-A RECEPTORS, IS CONSIDERED TO PLAY AN IMPORTANT ROLE IN ALCOHOL-INDUCED COGNITIVE IMPAIRMENT, HOWEVER, THE MECHANISM REMAINS OBSCURE. IN THIS STUDY, WE FOUND THAT THE EXPRESSION OF GABA-AALPHA5 INCREASED IN RATS TREATED WITH CHRONIC ETHANOL VIA HISTONE H3K9 ACETYLATION. FURTHERMORE, THIS EPIGENETIC MODIFICATION COULD BE INHERITED BY THE NEXT GENERATIONS, WHICH EVENTUALLY EXHIBIT SIMILAR SPATIAL LEARNING AND MEMORY DEFICITS IN THE OFFSPRINGS. IN SUMMARY, OUR RESULTS SUGGESTED THAT GABA-AALPHA5 MIGHT BE INVOLVED IN CHRONIC ETHANOL TREATMENT-INDUCED LEARNING-MEMORY DYSFUNCTION AND FOR THE FIRST TIME PROVED THAT LEARNING-MEMORY DYSFUNCTION COULD BE INHERITED BY THE OFFSPRINGS VIA HISTONE H3K9 ACETYLATION. HOPEFULLY, IN THE NEAR FUTURE, GABA-AALPHA5 INHIBITORS WOULD BE AN EFFECTIVE WAY TO TREAT ALCOHOL-INDUCED COGNITION IMPAIRMENT.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
11 2808  34 FETAL PROGRAMMING OF HYPOTHALAMIC-PITUITARY-ADRENAL (HPA) AXIS FUNCTION AND BEHAVIOR BY SYNTHETIC GLUCOCORTICOIDS. REDUCED FETAL GROWTH HAS BEEN CLOSELY ASSOCIATED WITH AN INCREASED RISK FOR THE DEVELOPMENT OF CHRONIC DISEASE IN LATER LIFE. ACCUMULATING EVIDENCE INDICATES THAT FETAL EXPOSURE TO EXCESS GLUCOCORTICOIDS REPRESENTS A CRITICAL MECHANISM UNDERLYING THIS ASSOCIATION. APPROXIMATELY 7% OF PREGNANT WOMEN ARE AT RISK OF PRETERM DELIVERY AND THESE WOMEN ARE ROUTINELY TREATED WITH SYNTHETIC GLUCOCORTICOIDS (SGC) BETWEEN 24 AND 34 OF WEEKS GESTATION TO IMPROVE NEONATAL OUTCOME. ANIMAL STUDIES HAVE DEMONSTRATED THAT MATERNALLY ADMINISTERED SGC CROSSES THE PLACENTA, AFFECTING FETAL HYPOTHALAMIC-PITUITARY-ADRENAL (HPA) DEVELOPMENT, RESULTING IN CHANGES IN HPA AXIS FUNCTION THAT PERSIST THROUGHOUT LIFE. THESE CHANGES APPEAR TO BE MODULATED AT THE LEVEL OF GLUCOCORTICOID RECEPTORS (GR) AND MINERALOCORTICOID RECEPTORS (MR) IN THE BRAIN AND PITUITARY. AS THE HPA AXIS INTERACTS WITH MANY OTHER PHYSIOLOGICAL PATHWAYS, THE CHANGES IN ENDOCRINE FUNCTION ARE ALSO SEX-SPECIFIC AND AGE-DEPENDENT. ALTERATIONS IN BEHAVIOR, PARTICULARLY LOCOMOTION, IN ANIMALS EXPOSED TO SGC IN UTERO HAVE ALSO BEEN DEMONSTRATED. CONSISTENT WITH THE FINDING IN ANIMAL MODELS, EMERGING HUMAN DATA ARE INDICATING ATTENTION DEFICIT-HYPERACTIVITY DISORDER (ADHD)-LIKE SYMPTOMS IN CHILDREN EXPOSED TO REPEATED COURSES OF SGC IN UTERO. THIS BEHAVIORAL PHENOTYPE IS LIKELY LINKED TO ALTERATIONS IN DOPAMINE (DA) SIGNALING, SUGGESTING THAT SGC ARE ABLE TO PERMANENTLY MODIFY OR 'PROGRAM' THIS SYSTEM. FINALLY, IT IS EMERGING THAT CHANGES IN HPA AXIS FUNCTION AND BEHAVIOR FOLLOWING ANTENATAL EXPOSURE TO SGC ARE TRANSGENERATIONAL AND LIKELY INVOLVE EPIGENETIC MECHANISMS. A COMPREHENSIVE UNDERSTANDING OF THE ACUTE AND LONG-TERM IMPACT OF SGC EXPOSURE IN UTERO IS NECESSARY TO BEGIN TO DEVELOP RECOMMENDATIONS AND TREATMENT OPTIONS FOR PREGNANT WOMEN AT RISK OF PRETERM DELIVERY.	2008	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
12 1162  25 CONTRASTING EFFECTS OF ACUTE AND CHRONIC STRESS ON THE TRANSCRIPTOME, EPIGENOME, AND IMMUNE RESPONSE OF ATLANTIC SALMON. STRESS EXPERIENCED DURING EARLY LIFE MAY HAVE LASTING EFFECTS ON THE IMMUNE SYSTEM, WITH IMPACTS ON HEALTH AND DISEASE DEPENDENT ON THE NATURE AND DURATION OF THE STRESSOR. THE EPIGENOME IS ESPECIALLY SENSITIVE TO ENVIRONMENTAL STIMULI DURING EARLY LIFE AND REPRESENTS A POTENTIAL MECHANISM THROUGH WHICH STRESS MAY CAUSE LONG-LASTING HEALTH EFFECTS. HOWEVER, THE EXTENT TO WHICH THE EPIGENOME RESPONDS DIFFERENTLY TO CHRONIC VS ACUTE STRESSORS IS UNCLEAR, ESPECIALLY FOR NON-MAMMALIAN SPECIES. WE EXAMINED THE EFFECTS OF ACUTE STRESS (COLD-SHOCK DURING EMBRYOGENESIS) AND CHRONIC STRESS (ABSENCE OF TANK ENRICHMENT DURING LARVAL-STAGE) ON GLOBAL GENE EXPRESSION (USING RNA-SEQ) AND DNA METHYLATION (USING RRBS) IN THE GILLS OF ATLANTIC SALMON (SALMO SALAR) FOUR MONTHS AFTER HATCHING. CHRONIC STRESS INDUCED PRONOUNCED TRANSCRIPTIONAL DIFFERENCES, WHILE ACUTE STRESS CAUSED FEW LASTING TRANSCRIPTIONAL EFFECTS. HOWEVER, BOTH ACUTE AND CHRONIC STRESS CAUSED LASTING AND CONTRASTING CHANGES IN THE METHYLOME. CRUCIALLY, WE FOUND THAT ACUTE STRESS ENHANCED TRANSCRIPTIONAL IMMUNE RESPONSE TO A PATHOGENIC CHALLENGE (BACTERIAL LIPOPOLYSACCHARIDE, LPS), WHILE CHRONIC STRESS SUPPRESSED IT. WE IDENTIFIED STRESS-INDUCED CHANGES IN PROMOTER AND GENE-BODY METHYLATION THAT WERE ASSOCIATED WITH ALTERED EXPRESSION FOR A SMALL PROPORTION OF IMMUNE-RELATED GENES, AND EVIDENCE OF WIDER EPIGENETIC REGULATION WITHIN SIGNALLING PATHWAYS INVOLVED IN IMMUNE RESPONSE. OUR RESULTS SUGGEST THAT STRESS CAN AFFECT IMMUNO-COMPETENCE THROUGH EPIGENETIC MECHANISMS, AND HIGHLIGHT THE MARKEDLY DIFFERENT EFFECTS OF CHRONIC LARVAL AND ACUTE EMBRYONIC STRESS. THIS KNOWLEDGE COULD BE USED TO HARNESS THE STIMULATORY EFFECTS OF ACUTE STRESS ON IMMUNITY, PAVING THE WAY FOR IMPROVED STRESS AND DISEASE MANAGEMENT THROUGH EPIGENETIC CONDITIONING.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
13 4068  27 MATERNAL ANDROGEN EXCESS AND OBESITY INDUCE SEXUALLY DIMORPHIC ANXIETY-LIKE BEHAVIOR IN THE OFFSPRING. MATERNAL POLYCYSTIC OVARY SYNDROME (PCOS), A CONDITION ASSOCIATED WITH HYPERANDROGENISM, IS SUGGESTED TO INCREASE ANXIETY-LIKE BEHAVIOR IN THE OFFSPRING. BECAUSE PCOS IS CLOSELY LINKED TO OBESITY, WE INVESTIGATED THE IMPACT OF AN ADVERSE HORMONAL OR METABOLIC MATERNAL ENVIRONMENT AND OFFSPRING OBESITY ON ANXIETY IN THE OFFSPRING. THE OBESE PCOS PHENOTYPE WAS INDUCED BY CHRONIC HIGH-FAT-HIGH-SUCROSE (HFHS) CONSUMPTION TOGETHER WITH PRENATAL DIHYDROTESTOSTERONE EXPOSURE IN MOUSE DAMS. ANXIETY-LIKE BEHAVIOR WAS ASSESSED IN ADULT OFFSPRING WITH THE ELEVATED-PLUS MAZE AND OPEN-FIELD TESTS. THE INFLUENCE OF MATERNAL ANDROGENS AND MATERNAL AND OFFSPRING DIET ON GENES IMPLICATED IN ANXIETY WERE ANALYZED IN THE AMYGDALA AND HYPOTHALAMUS WITH REAL-TIME PCR ( N = 47). INDEPENDENT OF DIET, FEMALE OFFSPRING EXPOSED TO MATERNAL ANDROGENS WERE MORE ANXIOUS AND DISPLAYED UP-REGULATION OF ADRENOCEPTOR ALPHA 1B IN THE AMYGDALA AND UP-REGULATION OF HYPOTHALAMIC CORTICOTROPIN-RELEASING HORMONE ( CRH). BY CONTRAST, MALE OFFSPRING EXPOSED TO A HFHS MATERNAL DIET HAD INCREASED ANXIETY-LIKE BEHAVIOR AND SHOWED UP-REGULATION OF EPIGENETIC MARKERS IN THE AMYGDALA AND UP-REGULATION OF HYPOTHALAMIC CRH. OVERALL, THERE WERE SUBSTANTIAL SEX DIFFERENCES IN GENE EXPRESSION IN THE BRAIN. THESE FINDINGS PROVIDE NOVEL INSIGHT INTO HOW MATERNAL ANDROGENS AND OBESITY EXERT SEX-SPECIFIC EFFECTS ON BEHAVIOR AND GENE EXPRESSION IN THE OFFSPRING OF A PCOS MOUSE MODEL.-MANTI, M., FORNES, R., QI, X., FOLMERZ, E., LINDEN HIRSCHBERG, A., DE CASTRO BARBOSA, T., MALIQUEO, M., BENRICK, A., STENER-VICTORIN, E. MATERNAL ANDROGEN EXCESS AND OBESITY INDUCE SEXUALLY DIMORPHIC ANXIETY-LIKE BEHAVIOR IN THE OFFSPRING.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
14 1182  33 CONVERGING AND DIFFERENTIAL BRAIN PHOSPHOLIPID DYSREGULATION IN THE PATHOGENESIS OF REPETITIVE MILD TRAUMATIC BRAIN INJURY AND ALZHEIMER'S DISEASE. REPETITIVE MILD TRAUMATIC BRAIN INJURY (RMTBI) IS A MAJOR EPIGENETIC RISK FACTOR FOR ALZHEIMER'S DISEASE (AD). THE PRECISE NATURE OF HOW RMTBI LEADS TO OR PRECIPITATES AD PATHOLOGY IS CURRENTLY UNKNOWN. NUMEROUS NEUROLOGICAL CONDITIONS HAVE SHOWN AN IMPORTANT ROLE FOR DYSFUNCTIONAL PHOSPHOLIPID METABOLISM AS A DRIVING FACTOR FOR THE PATHOGENESIS OF NEURODEGENERATIVE DISEASES. HOWEVER, THE PRECISE ROLE IN RMTBI AND AD REMAINS ELUSIVE. WE HYPOTHESIZED THAT A DETAILED PHOSPHOLIPID CHARACTERIZATION WOULD REVEAL PROFILES OF RESPONSE TO INJURY IN TBI THAT OVERLAP WITH AGE-DEPENDENT CHANGES IN AD AND THUS PROVIDE INSIGHTS INTO THE TBI-AD RELATIONSHIP. WE EMPLOYED A LIPIDOMIC APPROACH EXAMINING BRAIN PHOSPHOLIPID PROFILES FROM MOUSE MODELS OF RMTBI AND AD. CORTEX AND HIPPOCAMPAL TISSUE WERE COLLECTED AT 24 H, 3, 6, 9, AND 12 MONTHS POST-RMTBI, AND AT AGES REPRESENTING 'PRE', 'PERI' AND 'POST' ONSET OF AMYLOID PATHOLOGY (I.E., 3, 9, 15 MONTHS-OLD). TOTAL LEVELS OF PHOSPHATIDYLCHOLINE (PC), PHOSPHATIDYLETHANOLAMINE (PE), LYSOPE, AND PHOSPHATIDYLINOSITOL (PI), INCLUDING THEIR MONOUNSATURATED, POLYUNSATURATED AND SATURATED FATTY ACID (FA) CONTAINING SPECIES WERE SIGNIFICANTLY INCREASED AT ACUTE AND/OR CHRONIC TIME POINTS POST-INJURY IN BOTH BRAIN REGIONS. HOWEVER, LEVELS OF MOST PHOSPHOLIPID SPECIES IN PS1/APP MICE WERE NOMINAL IN THE HIPPOCAMPUS, WHILE IN THE CORTEX, LEVELS WERE SIGNIFICANTLY DECREASED AT AGES POST-ONSET OF AMYLOID PATHOLOGY. SPHINGOMYELIN AND LYSOPC LEVELS SHOWED COINCIDENTAL TRENDS IN OUR RMTBI AND AD MODELS WITHIN THE HIPPOCAMPUS, AN INCREASE AT ACUTE AND/OR CHRONIC TIME POINTS EXAMINED. THE RATIO OF ARACHIDONIC ACID (OMEGA-6 FA) TO DOCOSAHEXAENOIC ACID (OMEGA-3 FA)-CONTAINING PE SPECIES WAS INCREASED AT EARLY TIME POINTS IN THE HIPPOCAMPUS OF INJURED VERSUS SHAM MICE, AND IN PS1/APP MICE THERE WAS A COINCIDENTAL INCREASE COMPARED TO WILD TYPE LITTERMATES AT ALL TIME POINTS. THIS STUDY DEMONSTRATES SOME OVERLAPPING AND DIVERSE PHOSPHOLIPID PROFILES IN RMTBI AND AD MODELS. FUTURE STUDIES ARE REQUIRED TO CORROBORATE OUR FINDINGS IN HUMAN POST-MORTEM TISSUE. INVESTIGATION OF SECONDARY MECHANISMS TRIGGERED BY ABERRANT DOWNSTREAM ALTERATIONS IN BIOACTIVE METABOLITES OF THESE PHOSPHOLIPIDS, AND THEIR MODULATION AT THE APPROPRIATE TIME-WINDOWS OF OPPORTUNITY COULD HELP FACILITATE DEVELOPMENT OF NOVEL THERAPEUTIC STRATEGIES TO AMELIORATE THE NEURODEGENERATIVE CONSEQUENCES OF RMTBI OR THE POTENTIAL TRIGGERING OF AD PATHOGENESIS BY RMTBI.	2019	

15  889  27 CHRONIC DIETARY ADMINISTRATION OF VALPROIC ACID PROTECTS NEURONS OF THE RAT NUCLEUS BASALIS MAGNOCELLULARIS FROM IBOTENIC ACID NEUROTOXICITY. VALPROIC ACID (VPA) HAS BEEN USED FOR MANY YEARS AS A DRUG OF CHOICE FOR EPILEPSY AND MOOD DISORDERS. RECENTLY, EVIDENCE HAS BEEN PROPOSED FOR A WIDE SPECTRUM OF ACTIONS OF THIS DRUG, INCLUDING ANTITUMORAL AND NEUROPROTECTIVE PROPERTIES. VALPROIC ACID-MEDIATED NEUROPROTECTION IN VIVO HAS BEEN SO FAR DEMONSTRATED IN A LIMITED NUMBER OF EXPERIMENTAL MODELS. IN THIS STUDY, WE HAVE TESTED THE NEUROPROTECTIVE POTENTIAL OF CHRONIC (4 + 1 WEEKS) DIETARY ADMINISTRATION OF VPA ON DEGENERATION OF CHOLINERGIC AND GABAERGIC NEURONS OF THE RAT NUCLEUS BASALIS MAGNOCELLULARIS (NBM), INJECTED WITH THE EXCITOTOXIN, IBOTENIC ACID (IBO), AN ANIMAL MODELS THAT IS RELEVANT FOR ALZHEIMER'S DISEASE-LIKE NEURODEGENERATION. WE SHOW THAT VPA TREATMENT SIGNIFICANTLY PROTECTS BOTH CHOLINERGIC AND GABAERGIC NEURONS PRESENT IN THE INJECTED AREA FROM THE EXCITOTOXIC INSULT. A SIGNIFICANT LEVEL OF NEUROPROTECTION, IN PARTICULAR, IS EXERTED TOWARDS THE CHOLINERGIC NEURONS OF THE NBM PROJECTING TO THE CORTEX, AS DEMONSTRATED BY THE SUBSTANTIALLY HIGHER LEVELS OF CHOLINERGIC MARKERS MAINTAINED IN THE TARGET CORTICAL AREA OF VPA-TREATED RATS AFTER IBO INJECTION IN THE NBM. WE FURTHER SHOW THAT CHRONIC VPA ADMINISTRATION RESULTS IN INCREASED ACETYLATION OF HISTONE H3 IN BRAIN, CONSISTENT WITH THE HISTONE DEACETYLASE INHIBITORY ACTION OF VPA AND PUTATIVELY LINKED TO A NEUROPROTECTIVE ACTION OF THE DRUG MEDIATED AT THE EPIGENETIC LEVEL.	2009	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
16 4019  27 LOW-DOSE OR LOW-DOSE-RATE IONIZING RADIATION-INDUCED BIOEFFECTS IN ANIMAL MODELS. ANIMAL EXPERIMENTAL STUDIES INDICATE THAT ACUTE OR CHRONIC LOW-DOSE IONIZING RADIATION (LDIR) (</=100 MSV) OR LOW-DOSE-RATE IONIZING RADIATION (LDRIR) (<6 MSV/H) EXPOSURES MAY BE HARMFUL. IT INDUCES GENETIC AND EPIGENETIC CHANGES AND IS ASSOCIATED WITH A RANGE OF PHYSIOLOGICAL DISTURBANCES THAT INCLUDES ALTERED IMMUNE SYSTEM, ABNORMAL BRAIN DEVELOPMENT WITH RESULTANT COGNITIVE IMPAIRMENT, CATARACTOGENESIS, ABNORMAL EMBRYONIC DEVELOPMENT, CIRCULATORY DISEASES, WEIGHT GAIN, PREMATURE MENOPAUSE IN FEMALE ANIMALS, TUMORIGENESIS AND SHORTENED LIFESPAN. PATERNAL OR PRENATAL LDIR/LDRIR EXPOSURE IS ASSOCIATED WITH REDUCED FERTILITY AND NUMBER OF LIVE FETUSES, AND TRANSGENERATIONAL GENOMIC ABERRATIONS. ON THE OTHER HAND, IN SOME EXPERIMENTAL STUDIES, LDIR/LDRIR EXPOSURE HAS ALSO BEEN REPORTED TO BRING ABOUT BENEFICIAL EFFECTS SUCH AS REDUCTION IN TUMORIGENESIS, PROLONGED LIFESPAN AND ENHANCED FERTILITY. THE DIFFERENCES IN REPORTED EFFECTS OF LDIR/LDRIR EXPOSURE ARE DEPENDENT ON ANIMAL GENETIC BACKGROUND (SUSCEPTIBILITY), AGE (PRENATAL OR POSTNATAL DAYS), SEX, NATURE OF RADIATION EXPOSURE (I.E. ACUTE, FRACTIONATED OR CHRONIC RADIATION EXPOSURE), TYPE OF RADIATION, COMBINATION OF RADIATION WITH OTHER TOXIC AGENTS (SUCH AS SMOKING, PESTICIDES OR OTHER CHEMICAL TOXINS) OR ANIMAL EXPERIMENTAL DESIGNS. IN THIS REVIEW PAPER, WE AIMED TO UPDATE RADIATION RESEARCHERS AND RADIOLOGISTS ON THE CURRENT PROGRESS ACHIEVED IN UNDERSTANDING THE LDIR/LDRIR-INDUCED BIONEGATIVE AND BIOPOSITIVE EFFECTS REPORTED IN THE VARIOUS ANIMAL MODELS. THE ROLES PLAYED BY A VARIETY OF MOLECULES THAT ARE IMPLICATED IN LDIR/LDRIR-INDUCED HEALTH EFFECTS WILL BE ELABORATED. THE REVIEW WILL HELP IN FUTURE INVESTIGATIONS OF LDIR/LDRIR-INDUCED HEALTH EFFECTS BY PROVIDING CLUES FOR DESIGNING IMPROVED ANIMAL RESEARCH MODELS IN ORDER TO CLARIFY THE CURRENT CONTROVERSIAL/CONTRADICTORY FINDINGS FROM EXISTING STUDIES.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
17 2246  23 EPIGENETIC MODULATION OF INFLAMMATION AND SYNAPTIC PLASTICITY PROMOTES RESILIENCE AGAINST STRESS IN MICE. MAJOR DEPRESSIVE DISORDER IS ASSOCIATED WITH ABNORMALITIES IN THE BRAIN AND THE IMMUNE SYSTEM. CHRONIC STRESS IN ANIMALS SHOWED THAT EPIGENETIC AND INFLAMMATORY MECHANISMS PLAY IMPORTANT ROLES IN MEDIATING RESILIENCE AND SUSCEPTIBILITY TO DEPRESSION. HERE, THROUGH A HIGH-THROUGHPUT SCREENING, WE IDENTIFY TWO PHYTOCHEMICALS, DIHYDROCAFFEIC ACID (DHCA) AND MALVIDIN-3'-O-GLUCOSIDE (MAL-GLUC) THAT ARE EFFECTIVE IN PROMOTING RESILIENCE AGAINST STRESS BY MODULATING BRAIN SYNAPTIC PLASTICITY AND PERIPHERAL INFLAMMATION. DHCA/MAL-GLUC ALSO SIGNIFICANTLY REDUCES DEPRESSION-LIKE PHENOTYPES IN A MOUSE MODEL OF INCREASED SYSTEMIC INFLAMMATION INDUCED BY TRANSPLANTATION OF HEMATOPOIETIC PROGENITOR CELLS FROM STRESS-SUSCEPTIBLE MICE. DHCA REDUCES PRO-INFLAMMATORY INTERLEUKIN 6 (IL-6) GENERATIONS BY INHIBITING DNA METHYLATION AT THE CPG-RICH IL-6 SEQUENCES INTRONS 1 AND 3, WHILE MAL-GLUC MODULATES SYNAPTIC PLASTICITY BY INCREASING HISTONE ACETYLATION OF THE REGULATORY SEQUENCES OF THE RAC1 GENE. PERIPHERAL INFLAMMATION AND SYNAPTIC MALADAPTATION ARE IN LINE WITH NEWLY HYPOTHESIZED CLINICAL INTERVENTION TARGETS FOR DEPRESSION THAT ARE NOT ADDRESSED BY CURRENTLY AVAILABLE ANTIDEPRESSANTS.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
18 6911  23 [TWO GERMAN BIRTH COHORTS: GINIPLUS AND LISAPLUS]. NUMEROUS CHRONIC DISEASES IN CHILDHOOD AND ADULTHOOD HAVE THEIR ORIGINS IN PERINATAL LIFE AND ARE POTENTIALLY INFLUENCED BY TRANS-GENERATIONAL EPIGENETIC PROCESSES. THEREFORE, PROSPECTIVE BIRTH COHORTS CAN SUBSTANTIALLY CONTRIBUTE TO OUR KNOWLEDGE ABOUT THE ETIOLOGY OF DISEASES INCLUDING MODIFIABLE RISK FACTORS. THE TWO POPULATION-BASED GERMAN BIRTH COHORTS GINIPLUS AND LISAPLUS AIM TO DESCRIBE THE NATURAL COURSE OF CHRONIC DISEASES AND INTERMEDIATE PHENOTYPES IN CHILDHOOD AND ITS DETERMINANTS, AND TO IDENTIFY POTENTIAL GENETIC EFFECT MODIFICATIONS. IN THE MID-1990S, 5,991 (GINIPLUS) AND 3,097 (LISAPLUS) HEALTHY, TERM NEWBORNS WERE RECRUITED FOR LONG-TERM FOLLOW-UP IN FOUR REGIONS OF GERMANY. THE FOLLOW-UP RATE FOR THE FIRST 10 YEARS WAS ABOUT 55%. WE ANALYZED THE GROWTH AND DEVELOPMENT OF OVERWEIGHT, INFECTIONS AND ALLERGIC DISEASES, MENTAL AND ORAL HEALTH, METABOLIC AND INFLAMMATORY PARAMETERS AND THE ROLE OF POTENTIAL RISK FACTORS INCLUDING GENETICS. THE RESULTS OF THESE TWO BIRTH COHORTS SUBSTANTIALLY CONTRIBUTE TO THE CURRENT KNOWLEDGE ABOUT THE NATURAL COURSE OF THESE HEALTH PARAMETERS. THESE DATA WERE INCLUDED IN MANY INTERNATIONAL PROJECTS AND CONSORTIA FOR PURPOSES OF INTERNATIONAL COMPARISONS OF PREVALENCE AND CONSISTENCY OF FINDINGS, AND TO INCREASE THE POWER OF THE ANALYSES.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
19 6008  32 THE ANTI-INFLAMMATORY AGENT 5-ASA REDUCES THE LEVEL OF SPECIFIC TSRNAS IN SPERM CELLS OF HIGH-FAT FED C57BL/6J MOUSE SIRES AND IMPROVES GLUCOSE TOLERANCE IN FEMALE OFFSPRING. INTRODUCTION: THE PREVALENCE OF OBESITY AND ASSOCIATED COMORBIDITIES HAVE INCREASED TO EPIDEMIC PROPORTIONS GLOBALLY. PATERNAL OBESITY IS AN INDEPENDENT RISK FACTOR FOR DEVELOPING OBESITY AND TYPE 2 DIABETES IN THE FOLLOWING GENERATION, AND GROWING EVIDENCE SUGGESTS EPIGENETIC INHERITANCE AS A MECHANISM FOR THIS PREDISPOSITION. HOW AND WHY OBESITY INDUCES EPIGENETIC CHANGES IN SPERM CELLS REMAIN TO BE CLARIFIED IN DETAIL. YET, RECENT STUDIES SHOW THAT ALTERATIONS IN SPERM CONTENT OF TRANSFER RNA-DERIVED SMALL RNAS (TSRNAS) CAN TRANSMIT THE EFFECTS OF PATERNAL OBESITY TO OFFSPRING. OBESITY IS CLOSELY ASSOCIATED WITH LOW-GRADE CHRONIC INFLAMMATION. THUS, WE EVALUATED WHETHER THE ANTI-INFLAMMATORY AGENT 5-AMINOSALICYLIC ACID (5-ASA) COULD INTERVENE IN THE TRANSMISSION OF EPIGENETIC INHERITANCE OF PATERNAL OBESITY BY REDUCING THE INFLAMMATORY STATE IN OBESE FATHERS. METHODS: MALE C57BL/6JBOMTAC MICE WERE EITHER FED A HIGH-FAT DIET OR A HIGH-FAT DIET WITH 5-ASA FOR TEN WEEKS BEFORE MATING. THE OFFSPRING METABOLIC PHENOTYPE WAS EVALUATED, AND SPERMATOZOA FROM SIRES WERE ISOLATED FOR ASSESSMENT OF SPECIFIC TSRNAS LEVELS. RESULTS: 5-ASA INTERVENTION REDUCED THE LEVELS OF GLU-CTC TSRNAS IN SPERM CELLS AND IMPROVED GLUCOSE TOLERANCE IN FEMALE OFFSPRING FED A CHOW DIET. PATERNAL HIGH-FAT DIET-INDUCED OBESITY PER SE HAD ONLY A MODERATE IMPACT ON THE METABOLIC PHENOTYPE OF BOTH MALE AND FEMALE OFFSPRING IN OUR SETTING. CONCLUSION: THE RESULTS INDICATE THAT THE LOW-GRADE INFLAMMATORY RESPONSE ASSOCIATED WITH OBESITY MAY BE AN IMPORTANT FACTOR IN EPIGENETIC INHERITANCE OF PATERNAL OBESITY.	2023	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
20 2967  24 GENETIC AND EPIGENETIC REGULATION OF CATECHOL-O-METHYLTRANSFERASE IN RELATION TO INFLAMMATION IN CHRONIC FATIGUE SYNDROME AND FIBROMYALGIA. BACKGROUND: CATECHOL-O-METHYLTRANSFERASE (COMT) HAS BEEN SHOWN TO INFLUENCE CLINICAL PAIN, DESCENDING MODULATION, AND EXERCISE-INDUCED SYMPTOM WORSENING. COMT REGULATES NOCICEPTIVE PROCESSING AND INFLAMMATION, KEY PATHOPHYSIOLOGICAL FEATURES OF CHRONIC FATIGUE SYNDROME AND FIBROMYALGIA (CFS/FM). WE AIMED TO DETERMINE THE INTERACTIONS BETWEEN GENETIC AND EPIGENETIC MECHANISMS REGULATING COMT AND ITS INFLUENCE ON INFLAMMATORY MARKERS AND SYMPTOMS IN PATIENTS WITH CFS/FM. METHODS: A CASE-CONTROL STUDY WITH REPEATED-MEASURES DESIGN WAS USED TO REDUCE THE CHANCE OF FALSE POSITIVE AND INCREASE THE POWER OF OUR FINDINGS. FIFTY-FOUR PARTICIPANTS (28 PATIENTS WITH CFS/FM AND 26 CONTROLS) WERE ASSESSED TWICE WITHIN 4 DAYS. THE ASSESSMENT INCLUDED CLINICAL QUESTIONNAIRES, NEUROPHYSIOLOGICAL ASSESSMENT (PAIN THRESHOLDS, TEMPORAL SUMMATION, AND CONDITIONED PAIN MODULATION), AND BLOOD WITHDRAWAL IN ORDER TO ASSESS RS4818, RS4633, AND RS4680 COMT POLYMORPHISMS AND PERFORM HAPLOTYPE ESTIMATION, DNA METHYLATION IN THE COMT GENE (BOTH MB-COMT AND S-COMT PROMOTERS), AND CYTOKINE EXPRESSION (TNF-ALPHA, IFN-GAMMA, IL-6, AND TGF-BETA). RESULTS: COMT HAPLOTYPES WERE ASSOCIATED WITH DNA METHYLATION IN THE S-COMT PROMOTER, TGF-BETA EXPRESSION, AND SYMPTOMS. HOWEVER, THIS WAS NOT SPECIFIC FOR ONE CONDITION. SIGNIFICANT BETWEEN-GROUP DIFFERENCES WERE FOUND FOR INCREASED DNA METHYLATION IN THE MB-COMT PROMOTER AND DECREASED IFN-GAMMA EXPRESSION IN PATIENTS. DISCUSSION: OUR RESULTS ARE CONSISTENT WITH BASIC AND CLINICAL RESEARCH, PROVIDING INTERESTING INSIGHTS INTO GENETIC-EPIGENETIC REGULATORY MECHANISMS. MB-COMT DNA METHYLATION MIGHT BE AN INDEPENDENT FACTOR CONTRIBUTING TO THE PATHOPHYSIOLOGY OF CFS/FM. FURTHER RESEARCH ON DNA METHYLATION IN COMPLEX CONDITIONS SUCH AS CFS/FM IS WARRANTED. WE RECOMMEND FUTURE RESEARCH TO EMPLOY A REPEATED-MEASURE DESIGN TO CONTROL FOR BIOMARKERS VARIABILITY AND WITHIN-SUBJECT CHANGES.	2022