1 1639 105 MODULATION OF IMMUNE RESPONSES IN STRESS BY YOGA. STRESS IS A CONSTANT FACTOR IN TODAY'S FASTPACED LIFE THAT CAN JEOPARDIZE OUR HEALTH IF LEFT UNCHECKED. IT IS ONLY IN THE LAST HALF CENTURY THAT THE ROLE OF STRESS IN EVERY AILMENT FROM THE COMMON COLD TO AIDS HAS BEEN EMPHASIZED, AND THE MECHANISMS INVOLVED IN THIS PROCESS HAVE BEEN STUDIED. STRESS INFLUENCES THE IMMUNE RESPONSE PRESUMABLY THROUGH THE ACTIVATION OF THE HYPOTHALAMIC-PITUITARY ADRENAL AXIS, HYPOTHALAMIC PITUITARY-GONADAL AXIS, AND THE SYMPATHETIC-ADRENAL-MEDULLARY SYSTEM. VARIOUS NEUROTRANSMITTERS, NEUROPEPTIDES, HORMONES, AND CYTOKINES MEDIATE THESE COMPLEX BIDIRECTIONAL INTERACTIONS BETWEEN THE CENTRAL NERVOUS SYSTEM (CNS) AND THE IMMUNE SYSTEM. THE EFFECTS OF STRESS ON THE IMMUNE RESPONSES RESULT IN ALTERATIONS IN THE NUMBER OF IMMUNE CELLS AND CYTOKINE DYSREGULATION. VARIOUS STRESS MANAGEMENT STRATEGIES SUCH AS MEDITATION, YOGA, HYPNOSIS, AND MUSCLE RELAXATION HAVE BEEN SHOWN TO REDUCE THE PSYCHOLOGICAL AND PHYSIOLOGICAL EFFECTS OF STRESS IN CANCERS AND HIV INFECTION. THIS REVIEW AIMS TO DISCUSS THE EFFECT OF STRESS ON THE IMMUNE SYSTEM AND EXAMINE HOW RELAXATION TECHNIQUES SUCH AS YOGA AND MEDITATION COULD REGULATE THE CYTOKINE LEVELS AND HENCE, THE IMMUNE RESPONSES DURING STRESS. 2008 2 226 31 A SYSTEMATIC REVIEW OF RANDOMISED CONTROL TRIALS ON THE EFFECTS OF YOGA ON STRESS MEASURES AND MOOD. STRESS RELATED DISORDERS SUCH AS DEPRESSION AND ANXIETY ARE LEADING SOURCES OF DISABILITY WORLDWIDE, AND CURRENT TREATMENT METHODS SUCH AS CONVENTIONAL ANTIDEPRESSANT MEDICATIONS ARE NOT BENEFICIAL FOR ALL INDIVIDUALS. THERE IS EVIDENCE THAT YOGA HAS MOOD-ENHANCING PROPERTIES POSSIBLY RELATED TO ITS INHIBITORY EFFECTS ON PHYSIOLOGICAL STRESS AND INFLAMMATION, WHICH ARE FREQUENTLY ASSOCIATED WITH AFFECTIVE DISORDERS. HOWEVER THE BIOLOGICAL MECHANISMS VIA WHICH YOGA EXERTS ITS THERAPEUTIC MOOD-MODULATING EFFECTS ARE LARGELY UNKNOWN. THIS SYSTEMATIC REVIEW INVESTIGATES THE EFFECTS OF YOGA ON SYMPATHETIC NERVOUS SYSTEM AND HYPOTHALAMIC PITUITARY ADRENAL AXIS REGULATION MEASURES. IT FOCUSES ON STUDIES COLLECTING PHYSIOLOGICAL PARAMETERS SUCH AS BLOOD PRESSURE, HEART RATE, CORTISOL, PERIPHERAL CYTOKINE EXPRESSION AND/OR STRUCTURAL AND FUNCTIONAL BRAIN MEASURES IN REGIONS INVOLVED IN STRESS AND MOOD REGULATION. OVERALL THE 25 RANDOMISED CONTROL STUDIES DISCUSSED PROVIDE PRELIMINARY EVIDENCE TO SUGGEST THAT YOGA PRACTICE LEADS TO BETTER REGULATION OF THE SYMPATHETIC NERVOUS SYSTEM AND HYPOTHALAMIC-PITUITARY-ADRENAL SYSTEM, AS WELL AS A DECREASE IN DEPRESSIVE AND ANXIOUS SYMPTOMS IN A RANGE OF POPULATIONS. FURTHER RESEARCH IS WARRANTED TO CONFIRM THESE PRELIMINARY FINDINGS AND FACILITATE IMPLEMENTATION IN CLINICAL SETTINGS. 2015 3 2608 16 YOGA FOR PSYCHIATRIC DISORDERS: FROM FAD TO EVIDENCE-BASED INTERVENTION? THERE IS GROWING EVIDENCE FOR YOGA'S NEUROBIOLOGICAL EFFECTS IN PEOPLE WITH PSYCHIATRIC DISORDERS. POSTULATED MECHANISMS OF ACTION INCLUDE: (A) MODULATION OF THE HYPOTHALAMIC-PITUITARY-ADRENAL (HPA) AXIS; (B) ENHANCEMENT OF GABAERGIC NEUROTRANSMISSION; (C) AUTONOMIC MODULATION; AND (D) NEUROENDOCRINOLOGICAL EFFECTS. YOGA AS A THERAPEUTIC INTERVENTION IN PSYCHIATRIC DISORDERS APPEARS PROMISING AND MERITS FURTHER ATTENTION IN CLINICAL PRACTICE AND RESEARCH. 2020 4 1347 41 HYPOXIA IN CNS PATHOLOGIES: EMERGING ROLE OF MIRNA-BASED NEUROTHERAPEUTICS AND YOGA BASED ALTERNATIVE THERAPIES. CELLULAR RESPIRATION IS A VITAL PROCESS FOR THE EXISTENCE OF LIFE. ANY CONDITION THAT RESULTS IN DEPRIVATION OF OXYGEN (ALSO TERMED AS HYPOXIA) MAY EVENTUALLY LEAD TO DELETERIOUS EFFECTS ON THE FUNCTIONING OF TISSUES. BRAIN BEING THE HIGHEST CONSUMER OF OXYGEN IS PRONE TO INCREASED RISK OF HYPOXIA-INDUCED NEUROLOGICAL INSULTS. THIS IN TURN HAS BEEN ASSOCIATED WITH MANY DISEASES OF CENTRAL NERVOUS SYSTEM (CNS) SUCH AS STROKE, ALZHEIMER'S, ENCEPHALOPATHY ETC. ALTHOUGH SEVERAL STUDIES HAVE INVESTIGATED THE PATHOPHYSIOLOGICAL MECHANISMS UNDERLYING ISCHEMIC/HYPOXIC CNS DISEASES, THE KNOWLEDGE ABOUT PROTECTIVE THERAPEUTIC STRATEGIES TO AMELIORATE THE AFFECTED NEURONAL CELLS IS MEAGER. THIS HAS AUGMENTED THE NEED TO IMPROVE OUR UNDERSTANDING OF THE HYPOXIC AND ISCHEMIC EVENTS OCCURRING IN THE BRAIN AND IDENTIFY NOVEL AND ALTERNATE TREATMENT MODALITIES FOR SUCH INSULTS. MICRORNA (MIRNAS), SMALL NON-CODING RNA MOLECULES, HAVE RECENTLY EMERGED AS POTENTIAL NEUROPROTECTIVE AGENTS AS WELL AS TARGETS, UNDER HYPOXIC CONDITIONS. THESE 18-22 NUCLEOTIDE LONG RNA MOLECULES ARE PROFUSELY PRESENT IN BRAIN AND OTHER ORGANS AND FUNCTION AS GENE REGULATORS BY CLEAVING AND SILENCING THE GENE EXPRESSION. IN BRAIN, THESE ARE KNOWN TO BE INVOLVED IN NEURONAL DIFFERENTIATION AND PLASTICITY. THEREFORE, TARGETING MIRNA EXPRESSION REPRESENTS A NOVEL THERAPEUTIC APPROACH TO INTERCEDE AGAINST HYPOXIC AND ISCHEMIC BRAIN INJURY. IN THE FIRST PART OF THIS REVIEW, WE WILL DISCUSS THE NEUROPHYSIOLOGICAL CHANGES CAUSED AS A RESULT OF HYPOXIA, FOLLOWED BY THE CONTRIBUTION OF HYPOXIA IN THE NEURODEGENERATIVE DISEASES. SECONDLY, WE WILL PROVIDE RECENT UPDATES AND INSIGHTS INTO THE ROLES OF MIRNA IN THE REGULATION OF GENES IN OXYGEN AND GLUCOSE DEPRIVED BRAIN IN ASSOCIATION WITH CIRCADIAN RHYTHMS AND HOW THESE CAN BE TARGETED AS NEUROPROTECTIVE AGENTS FOR CNS INJURIES. FINALLY, WE WILL EMPHASIZE ON ALTERNATE BREATHING OR YOGIC INTERVENTIONS TO OVERCOME THE HYPOXIA ASSOCIATED ANOMALIES THAT COULD ULTIMATELY LEAD TO IMPROVEMENT IN CEREBRAL PERFUSION. 2017 5 981 23 EFFECTS OF COMBINED AEROBIC-STRENGTH TRAINING AND YOGA ON QUALITY OF LIFE AND RELATED PARAMETERS IN WOMEN WITH PITUITARY ADENOMA AFTER SURGERY: A RANDOMIZED CROSSOVER STUDY. OBJECTIVE: THE PITUITARY GLAND IS RESPONSIBLE FOR HORMONAL BALANCE IN THE BODY, AND DISRUPTION OF HORMONAL BALANCE IN PATIENTS WITH PITUITARY ADENOMA (PA) INDIRECTLY AFFECTS THE QUALITY OF LIFE. THIS STUDY AIMED TO EXAMINE THE EFFECTS OF YOGA AND COMBINED AEROBIC AND STRENGTH TRAINING (A+ST) ON QUALITY OF LIFE AND RELATED PARAMETERS SUCH AS SLEEP, FATIGUE, EMOTIONAL STATE, SEXUAL FUNCTION, AND COGNITIVE STATUS IN WOMEN WITH PA. DESIGN: TEN WOMEN WITH PA WERE INCLUDED IN THIS RANDOMIZED CROSSOVER STUDY. GROUP 1 (N = 5, MEAN AGE: 52 +/- 13.5 YEARS) RECEIVED A+ST FOR THE FIRST 6 WEEKS, A 2-WEEK WASHOUT PERIOD, AND YOGA FOR THE SECOND 6 WEEKS. GROUP 2 (N = 5, MEAN AGE: 41.8 +/- 14 YEARS) RECEIVED THE YOGA PROGRAM FIRST, FOLLOWED BY THE A+ST PROGRAM. METHODS: PARTICIPANTS WERE ASSESSED USING THE FOLLOWING TOOLS BEFORE AND AFTER EACH EXERCISE INTERVENTION: FUNCTIONAL ASSESSMENT OF CANCER THERAPY-BRAIN (FACT-BR) (QUALITY OF LIFE), PITTSBURG SLEEP QUALITY INDEX, FATIGUE SEVERITY SCALE (FSS), FEMALE SEXUAL FUNCTION INDEX (FSFI), HOSPITAL ANXIETY AND DEPRESSION SCALE (HADS), AND MONTREAL COGNITIVE ASSESSMENT SCALE (MOCA). RESULTS: FACT-BR SCORES WERE HIGHER AFTER THE YOGA PROGRAM, HADS ANXIETY SCORE WAS LOWER AFTER THE A+ST PROGRAM, AND MOCA SCORES INCREASED AFTER BOTH EXERCISE PROGRAMS (P < 0.05). FSS SCORE DECREASED AFTER BOTH EXERCISE PROGRAMS, BUT NOT SIGNIFICANTLY. IN ADDITION, NONSIGNIFICANT DECREASES IN HADS ANXIETY AND DEPRESSION SCORES AND INCREASED FSFI SCORES WERE OBSERVED AFTER THE YOGA PROGRAM. CONCLUSION: A+ST AND YOGA HAVE POSITIVE EFFECTS ON THE QUALITY OF LIFE IN PA. WE RECOMMEND YOGA AND A+ST AS A SUPPORTIVE THERAPY FOR THIS POPULATION THAT MAY FACE COMORBIDITIES AFTER SURGICAL AND MEDICAL TREATMENT. OUR RESULTS INDICATE THESE PATIENTS MAY BENEFIT FROM PHYSIOTHERAPIST-GUIDED EXERCISE PROGRAMS. 2022 6 2886 32 YOGA: BALANCING THE EXCITATION-INHIBITION EQUILIBRIUM IN PSYCHIATRIC DISORDERS. SOCIAL BEHAVIORAL DISTURBANCES ARE CENTRAL TO MOST PSYCHIATRIC DISORDERS. A DISEQUILIBRIUM WITHIN THE CORTICAL EXCITATORY AND INHIBITORY NEUROTRANSMITTER SYSTEMS UNDERLIES THESE DEFICITS. GAMMA-AMINOBUTYRIC ACID (GABA) AND GLUTAMATE ARE THE MOST ABUNDANT EXCITATORY AND INHIBITORY NEUROTRANSMITTERS IN THE BRAIN THAT CONTRIBUTE TO THIS EQUILIBRIUM. SEVERAL CONTEMPORARY THERAPIES USED IN TREATING PSYCHIATRIC DISORDERS, REGULATE THIS GABA-GLUTAMATE BALANCE. YOGA HAS BEEN STUDIED AS AN ADJUVANT TREATMENT ACROSS A BROAD RANGE OF PSYCHIATRIC DISORDERS AND IS SHOWN TO HAVE SHORT-TERM THERAPEUTIC GAINS. EMERGING EVIDENCE FROM RECENT CLINICAL IN VIVO EXPERIMENTS SUGGESTS THAT YOGA IMPROVES GABA-MEDIATED CORTICAL-INHIBITORY TONE AND ENHANCES PERIPHERAL OXYTOCIN LEVELS. THIS IS LIKELY TO HAVE A MORE CONTROLLED DOWNSTREAM RESPONSE OF THE HYPOTHALAMO-PITUITARY-ADRENAL SYSTEM BY MEANS OF REDUCED CORTISOL RELEASE AND HENCE A BLUNTED SYMPATHETIC RESPONSE TO STRESS. ANIMAL AND EARLY FETAL DEVELOPMENTAL STUDIES SUGGEST AN INTER-DEPENDENT ROLE OF OXYTOCIN AND GABA IN REGULATING SOCIAL BEHAVIORS. IN KEEPING WITH THESE OBSERVATIONS, WE PROPOSE AN INTEGRATED NEUROBIOLOGICAL MODEL TO STUDY THE MECHANISMS OF THERAPEUTIC BENEFITS WITH YOGA. APART FROM PROVIDING A NEUROSCIENTIFIC BASIS FOR APPLYING A TRADITIONAL SYSTEM OF PRACTICE IN THE CLINICAL SETTING, THIS MODEL CAN BE USED AS A FRAMEWORK FOR STUDYING YOGA MECHANISMS IN FUTURE CLINICAL TRIALS. 2019 7 433 25 CAN YOGA THERAPY STIMULATE STEM CELL TRAFFICKING FROM BONE MARROW? IT HAS BEEN ESTABLISHED THAT MESENCHYMAL STROMAL CELLS (MSCS) FROM BONE MARROW ENTER THE PERIPHERAL CIRCULATION INTERMITTENTLY FOR POSSIBLE TISSUE REGENERATION, REPAIR AND TO TAKE CARE OF DAILY WEAR AND TEAR. THIS IS EVIDENT FROM THE DETECTION OF MSCS FROM PERIPHERAL BLOOD. THE FACTORS GOVERNING THIS MIGRATION REMAIN ELUSIVE. THESE MSCS CARRY OUT THE WORK OF POLICING AND ARE SUPPOSED TO REPAIR THE INJURED TISSUES. THUS, THESE CELLS HELP IN MAINTAINING THE TISSUE AND ORGAN HOMEOSTASIS. YOGA AND PRANAYAMA ORIGINATED IN INDIA AND IS NOW BEING PRACTICED ALL OVER THE WORLD FOR POSITIVE HEALTH. SO FAR, THE CHEMICAL STIMULATION OF BONE MARROW HAS BEEN WIDELY USED EMPLOYING INJECTION OF COLONY STIMULATING FACTOR. HOWEVER, THE ROLE OF PHYSICAL FACTORS SUCH AS MECHANICAL STIMULATION AND STRETCHING HAS NOT BEEN SUBSTANTIATED. IT IS CLAIMED THAT PRACTICING YOGA DELAYS SENESCENCE, IMPROVES THE PHYSIOLOGICAL FUNCTIONS OF HEART AND LUNG AND YOGA POSTURES MAKE THE BODY ELASTIC. IT REMAINS TO BE SEEN WHETHER THE YOGA THERAPY PROMOTES TRAFFICKING OF THE STEM CELLS FROM BONE MARROW FOR POSSIBLE REPAIR AND REGENERATION OF WORN OUT AND DEGENERATING TISSUES. WE COVER IN THIS SHORT REVIEW, MAINLY THE ROLE OF PHYSICAL FACTORS ESPECIALLY THE YOGA THERAPY ON STEM CELLS TRAFFICKING FROM BONE MARROW. 2016 8 1569 24 MALE REPRODUCTIVE HEALTH AND YOGA. NOW-A-DAYS REPRODUCTIVE HEALTH PROBLEMS ALONG WITH INFERTILITY IN MALE IS VERY OFTEN OBSERVED. VARIOUS ASSISTED REPRODUCTIVE TECHNOLOGIES HAVE BEEN INTRODUCED TO SOLVE THE PROBLEM, BUT COMMON PEOPLE CANNOT AFFORD THE COST OF SUCH PROCEDURES. VARIOUS AYURVEDIC AND OTHER ALTERNATIVE MEDICINES, ALONG WITH REGULAR YOGA PRACTICE ARE PROVEN TO BE NOT ONLY EFFECTIVE TO ENHANCE THE REPRODUCTIVE HEALTH IN MEN TO PRODUCE A SUCCESSFUL PREGNANCY, BUT ALSO TO REGULATE SEXUAL DESIRE IN MEN WHO PRACTICE CELIBACY. YOGA IS REPORTED TO REDUCE STRESS AND ANXIETY, IMPROVE AUTONOMIC FUNCTIONS BY TRIGGERING NEUROHORMONAL MECHANISMS BY THE SUPPRESSION OF SYMPATHETIC ACTIVITY, AND EVEN, TODAY, SEVERAL REPORTS SUGGESTED REGULAR YOGA PRACTICE FROM CHILDHOOD IS BENEFICIAL FOR REPRODUCTIVE HEALTH. IN THIS REGARD THE PRESENT REVIEW IS AIMED TO PROVIDE ALL THE NECESSARY INFORMATION REGARDING THE EFFECTIVENESS OF YOGA PRACTICE TO HAVE A BETTER REPRODUCTIVE HEALTH AND TO PREVENT INFERTILITY. 2013 9 1590 22 MEDITATION AND YOGA CAN MODULATE BRAIN MECHANISMS THAT AFFECT BEHAVIOR AND ANXIETY-A MODERN SCIENTIFIC PERSPECTIVE. MEDITATION AND YOGA TECHNIQUES ARE RECEIVING INCREASED ATTENTION THROUGHOUT THE WORLD, DUE TO THE ACCUMULATION OF EVIDENCE BASED RESEARCH THAT PROVES THE DIRECT AND INDIRECT BENEFITS OF SUCH PRACTICES. BASED ON STUDIES CONDUCTED SO FAR, IT HAS BEEN FOUND THAT THE PRACTICE OF MEDITATION TRIGGERS NEUROTRANSMITTERS THAT MODULATE PSYCHOLOGICAL DISORDERS SUCH AS ANXIETY. THIS PAPER WILL REVIEW THE PSYCHOLOGICAL EFFECTS OF THE PRACTICE OF MEDITATION, THE ROLE OF NEUROTRANSMITTERS, AND STUDIES USING EEG AND FMRI. 2015 10 1089 27 EFFECTS OF YOGA ON THE AUTONOMIC NERVOUS SYSTEM, GAMMA-AMINOBUTYRIC-ACID, AND ALLOSTASIS IN EPILEPSY, DEPRESSION, AND POST-TRAUMATIC STRESS DISORDER. A THEORY IS PROPOSED TO EXPLAIN THE BENEFITS OF YOGA PRACTICES IN DIVERSE, FREQUENTLY COMORBID MEDICAL CONDITIONS BASED ON THE CONCEPT THAT YOGA PRACTICES REDUCE ALLOSTATIC LOAD IN STRESS RESPONSE SYSTEMS SUCH THAT OPTIMAL HOMEOSTASIS IS RESTORED. IT IS HYPOTHESIZED THAT STRESS INDUCES (1) IMBALANCE OF THE AUTONOMIC NERVOUS SYSTEM (ANS) WITH DECREASED PARASYMPATHETIC NERVOUS SYSTEM (PNS) AND INCREASED SYMPATHETIC NERVOUS SYSTEM (SNS) ACTIVITY, (2) UNDERACTIVITY OF THE GAMMA AMINO-BUTYRIC ACID (GABA) SYSTEM, THE PRIMARY INHIBITORY NEUROTRANSMITTER SYSTEM, AND (3) INCREASED ALLOSTATIC LOAD. IT IS FURTHER HYPOTHESIZED THAT YOGA-BASED PRACTICES (4) CORRECT UNDERACTIVITY OF THE PNS AND GABA SYSTEMS IN PART THROUGH STIMULATION OF THE VAGUS NERVES, THE MAIN PERIPHERAL PATHWAY OF THE PNS, AND (5) REDUCE ALLOSTATIC LOAD. DEPRESSION, EPILEPSY, POST TRAUMATIC STRESS DISORDER (PTSD), AND CHRONIC PAIN EXEMPLIFY MEDICAL CONDITIONS THAT ARE EXACERBATED BY STRESS, HAVE LOW HEART RATE VARIABILITY (HRV) AND LOW GABAERGIC ACTIVITY, RESPOND TO PHARMACOLOGIC AGENTS THAT INCREASE ACTIVITY OF THE GABA SYSTEM, AND SHOW SYMPTOM IMPROVEMENT IN RESPONSE TO YOGA-BASED INTERVENTIONS. THE OBSERVATION THAT TREATMENT RESISTANT CASES OF EPILEPSY AND DEPRESSION RESPOND TO VAGAL NERVE STIMULATION CORROBORATES THE NEED TO CORRECT PNS UNDERACTIVITY AS PART OF A SUCCESSFUL TREATMENT PLAN IN SOME CASES. ACCORDING TO THE PROPOSED THEORY, THE DECREASED PNS AND GABAERGIC ACTIVITY THAT UNDERLIES STRESS-RELATED DISORDERS CAN BE CORRECTED BY YOGA PRACTICES RESULTING IN AMELIORATION OF DISEASE SYMPTOMS. THIS HAS FAR-REACHING IMPLICATIONS FOR THE INTEGRATION OF YOGA-BASED PRACTICES IN THE TREATMENT OF A BROAD ARRAY OF DISORDERS EXACERBATED BY STRESS. 2012 11 1149 33 ENHANCEMENT OF CANCER STEM CELL SUSCEPTIBILITY TO CONVENTIONAL TREATMENTS THROUGH COMPLEMENTARY YOGA THERAPY: POSSIBLE CELLULAR AND MOLECULAR MECHANISMS. CANCER STEM CELLS (CSCS) ARE STEM-LIKE TUMOR POPULATIONS THAT ARE REPORTED TO CONTRIBUTE TOWARDS TUMOR GROWTH, MAINTENANCE AND RECURRENCE AFTER THERAPY. HYPOXIA INCREASES CSC FRACTION AND PROMOTES ACQUISITION OF A STEM-CELL-LIKE STATE. CANCER STEM CELLS ARE CRITICALLY DEPENDANT ON THE HYPOXIA-INDUCIBLE FACTOR-1 (HIF-1) FOR SURVIVAL, SELF-RENEWAL, TUMOR GROWTH AND MAINTENANCE OF THEIR UNDIFFERENTIATED PHENOTYPE. RECENT RESEARCHES SHOW THAT STAGE OF DIFFERENTIATION OF THE TUMOR CELLS IS PREDICTIVE OF THEIR SUSCEPTIBILITY TO NATURAL KILLER CELL (NK) CELL MEDIATED CYTOTOXICITY AND CANCER STEM CELLS ARE SIGNIFICANT TARGETS OF NK CELL CYTOTOXICITY. STUDIES ALSO SHOW THAT REVERSION OF TUMOR CELLS TO A LESS-DIFFERENTIATED PHENOTYPE CAN BE ACHIEVED BY BLOCKING NFKAPPAB. YOGA THERAPY (YOGIC LIFESTYLE MODIFICATIONS ENCOMPASSING PHYSICAL POSTURES, BREATHING PRACTICES, RELAXATION TECHNIQUES AND MEDITATIONS) IS KNOWN TO MODULATE NEURAL, ENDOCRINE AND IMMUNE FUNCTIONS AT THE CELLULAR LEVEL THROUGH INFLUENCING CELL CYCLE CONTROL, AGING, OXIDATIVE STRESS, APOPTOSIS AND SEVERAL PATHWAYS OF STRESS SIGNALING MOLECULES. YOGA THERAPY HAS ALSO BEEN SHOWN TO ENHANCE NATURAL KILLER CELL ACTIVITY AND MODULATE STRESS AND DNA DAMAGE IN BREAST CANCER PATIENTS RECEIVING RADIOTHERAPY. RECENT STUDY FOUND THAT BRIEF DAILY YOGIC MEDITATION MAY REVERSE THE PATTERN OF INCREASED NFKAPPAB-RELATED TRANSCRIPTION OF PRO-INFLAMMATORY CYTOKINES IN LEUKOCYTES. THUS, YOGA THERAPY HAS THE POTENTIAL TO REDUCE CANCER STEM CELL SURVIVAL, SELF -RENEWAL AND TUMOR GROWTH BY MODIFYING THE TUMOR MICRO-ENVIRONMENT THROUGH VARIOUS MECHANISMS SUCH AS; 1) REDUCING HIF-1 ACTIVITY BY ENHANCED OXYGENATION, 2) PROMOTING NK CELL ACTIVITY DIRECTLY (OR INDIRECTLY THROUGH DOWN REGULATING NFKAPPAB EXPRESSION), THEREBY ENHANCING NK CELL MEDIATED CSC LYSIS, AND 3) BY MINIMIZING THE ABERRANT EXPRESSIONS OR ACTIVITIES OF VARIOUS HORMONES, CYTOKINES, CHEMOKINES AND TUMOR SIGNALING PATHWAYS. YOGA THERAPY MAY HAVE A SYNERGISTIC EFFECT WITH CONVENTIONAL MODALITIES OF TREATMENT IN PREVENTING CANCER PROGRESSION AND RECURRENCES. 2012 12 1311 20 HEALTH IMPACTS OF YOGA AND PRANAYAMA: A STATE-OF-THE-ART REVIEW. THOUSANDS OF YEARS AGO YOGA ORIGINATED IN INDIA, AND IN PRESENT DAY AND AGE, AN ALARMING AWARENESS WAS OBSERVED IN HEALTH AND NATURAL REMEDIES AMONG PEOPLE BY YOGA AND PRANAYAMA WHICH HAS BEEN PROVEN AN EFFECTIVE METHOD FOR IMPROVING HEALTH IN ADDITION TO PREVENTION AND MANAGEMENT OF DISEASES. WITH INCREASING SCIENTIFIC RESEARCH IN YOGA, ITS THERAPEUTIC ASPECTS ARE ALSO BEING EXPLORED. YOGA IS REPORTED TO REDUCE STRESS AND ANXIETY, IMPROVES AUTONOMIC FUNCTIONS BY TRIGGERING NEUROHORMONAL MECHANISMS BY THE SUPPRESSION OF SYMPATHETIC ACTIVITY, AND EVEN, NOW-A-DAYS, SEVERAL REPORTS SUGGESTED YOGA IS BENEFICIAL FOR PHYSICAL HEALTH OF CANCER PATIENTS. SUCH GLOBAL RECOGNITION OF YOGA ALSO TESTIFIES TO INDIA'S GROWING CULTURAL INFLUENCE. 2012 13 1824 35 PSYCHO-NEURO-ENDOCRINE-IMMUNE MECHANISMS OF ACTION OF YOGA IN TYPE II DIABETES. YOGA HAS BEEN FOUND TO BENEFIT ALL THE COMPONENTS OF HEALTH VIZ. PHYSICAL, MENTAL, SOCIAL AND SPIRITUAL WELL BEING BY INCORPORATING A WIDE VARIETY OF PRACTICES. PATHOPHYSIOLOGY OF TYPE II DM AND CO-MORBIDITIES IN TYPE II DM HAS BEEN CORRELATED WITH STRESS MECHANISMS. STRESS SUPPRESSES BODY'S IMMUNE SYSTEM AND NEURO-HUMORAL ACTIONS THEREBY AFF ECTING NORMAL PSYCHOLOGICAL STATE. IT WOULD NOT BE WRONG TO STATE THAT CORRELATION OF DIABETES WITH STRESS, ANXIETY AND OTHER PSYCHOLOGICAL FACTORS ARE BIDIRECTIONAL AND LEAD TO DIFFICULTY IN UNDERSTANDING THE INTERRELATED MECHANISMS. TYPE II DM CANNOT BE UNDERSTOOD IN ISOLATION WITH PSYCHOLOGICAL FACTORS SUCH AS STRESS, ANXIETY AND DEPRESSION, NEURO-ENDOCRINE AND IMMUNOLOGICAL FACTORS. THERE IS NO REVIEW WHICH TRIES TO UNDERSTAND THESE MECHANISMS EXCLUSIVELY. THE PRESENT LITERATURE REVIEW AIMS TO UNDERSTAND INTERRELATED PSYCHO-NEURO-ENDOCRINE AND IMMUNOLOGICAL MECHANISMS OF ACTION OF YOGA IN TYPE II DIABETES MELLITUS. PUBLISHED LITERATURE CONCERNING MECHANISMS OF ACTION OF YOGA IN TYPE II DM EMPHASIZING PSYCHO-NEURO-ENDOCRINE OR IMMUNOLOGICAL RELATIONS WAS RETRIEVED FROM PUBMED USING KEY WORDS YOGA, TYPE II DIABETES MELLITUS, PSYCHOLOGICAL, NEURAL, ENDOCRINE, IMMUNE AND MECHANISM OF ACTION. THOSE STUDIES WHICH EXPLAINED THE PSYCHO-NEUROENDOCRINE AND IMMUNE MECHANISMS OF ACTION OF YOGA WERE INCLUDED AND REST WERE EXCLUDED. ALTHOUGH PRIMARY AIM OF THIS STUDY IS TO EXPLAIN THESE MECHANISMS IN TYPE II DM, SOME STUDIES IN NON-DIABETIC POPULATION WHICH HAD A SIMILAR PATHWAY OF STRESS MECHANISM WAS INCLUDED BECAUSE MANY INSIGHTFUL STUDIES WERE AVAILABLE IN THAT AREA. SEARCH WAS CONDUCTED USING TERMS YOGA OR YOGIC AND DIABETES OR DIABETIC IN TITLE OR ABSTRACT FOR ENGLISH ARTICLES. OF THE 89 ARTICLES, WE EXCLUDED NON-ENGLISH ARTICLES (22), EDITORIALS (20) AND LETTERS TO EDITOR (10). 37 STUDIES WERE CONSIDERED FOR THIS REVIEW. THE POSTULATED MECHANISM OF ACTION OF YOGA IS THROUGH PARASYMPATHETIC ACTIVATION AND THE ASSOCIATED ANTI STRESS MECHANISM. IT REDUCES PERCEIVED STRESS AND HPA AXIS ACTIVATION THEREBY IMPROVING OVERALL METABOLIC AND PSYCHOLOGICAL PROFILES, INCREASING INSULIN SENSITIVITY, AND IMPROVING GLUCOSE TOLERANCE AND LIPID METABOLISM. YOGA HAS POSITIVE EFFECTS ON IMMUNE SYSTEM OF DIABETICS.- OVERALL, TYPE II DM IS INFLUENCED BY PSYCHO-NEURO-ENDOCRINE AND IMMUNE MECHANISMS WHERE YOGA HAS IMPORTANT POSITIVE ROLE IN COMBATING STRESSORS AND IMPROVING THESE SYSTEMS TO REGAIN HEALTH. 2015 14 571 17 DEFINING YOGA-NIDRA: TRADITIONAL ACCOUNTS, PHYSIOLOGICAL RESEARCH, AND FUTURE DIRECTIONS. THE TERM YOGA-NIDRA HAS BEEN USED IN MANY EMPIRICAL STUDIES TO REFER TO RELAXATION AND GUIDED IMAGERY. THESE TECHNIQUES DO NOT REPRESENT THE INTENTION OR PHYSIOLOGICAL CORRELATES OF YOGANIDRA DISCUSSED IN THE TRADITIONAL YOGA LITERATURE. WE PROPOSE AN OPERATIONAL DEFINITION OF YOGA-NIDRA THAT IS SUPPORTED BY SEVERAL PHYSIOLOGICALLY TESTABLE HYPOTHESES REGARDING ITS OUTCOMES AND EFFECTS. TRADITIONAL DESCRIPTIONS OF YOGA-NIDRA AND CONTEMPORARY ACCOUNTS OF ITS PRACTICE ARE REVIEWED, AND STUDIES EXAMINING THE PHYSIOLOGICAL CORRELATES OF YOGA-NIDRA ARE EXAMINED. PROPOSED HYPOTHESES FOR FUTURE RESEARCH USING THIS OPERATIONAL DEFINITION ARE PROVIDED. 2013 15 2224 26 THE IMPACT OF THE "YOGIC LIFESTYLE" ON CANCER PROGNOSIS AND SURVIVAL: CAN WE TARGET CANCER STEM CELLS WITH YOGA? CANCER HAS RECENTLY BEEN KNOWN TO ORIGINATE FROM STEM CELL-LIKE CELLS, CALLED CANCER STEM CELLS (CSCS). THEIR UNIQUE PROPERTIES OF SELF-DUPLICATION, MULTIPLICATION, AS WELL AS MIGRATION GIVE THE CSC RESISTANCE OVER CONVENTIONAL CANCER THERAPIES. NEWER THERAPIES ARE IN DEVELOPMENTAL STAGE TO TARGET THESE STEM CELL-LIKE POPULATIONS AND BECOME THE VANGUARD OF FUTURE TREATMENTS. SEVERAL COMPLEMENTARY AND ALTERNATIVE TREATMENTS HAVE BEEN USED IN CANCER MANAGEMENT AS AN ADJUNCT TO CONVENTIONAL THERAPY TO IMPROVE THE OVERALL QUALITY OF LIFE AND REDUCE RECURRENCE. YOGA STANDS AS THE THIRD MOST POPULAR OF ALL COMPLEMENTARY AND ALTERNATIVE MEDICINE TREATMENTS CURRENTLY USED IN CANCER PATIENTS TODAY. PRELIMINARY RESULTS SHOW THAT YOGA MODULATES NEURAL, HORMONAL, AND IMMUNE FUNCTIONS AT A CELLULAR LEVEL. THE SCOPE OF THIS COMMENTARY IS TO DISCUSS THE CURRENT EVIDENCE-BASED MEDICINE ON YOGA AND ITS EFFECT ON CSCS. 2017 16 1575 27 MANAGING MENTAL HEALTH DISORDERS RESULTING FROM TRAUMA THROUGH YOGA: A REVIEW. THERE ARE MANY AND VARIED TYPES OF TRAUMA. THE EXTENT TO WHICH TRAUMA INFLUENCES THE MENTAL HEALTH OF AN INDIVIDUAL DEPENDS ON THE NATURE OF TRAUMA, AS WELL AS ON THE INDIVIDUAL'S COPING CAPABILITIES. OFTEN TRAUMA IS FOLLOWED BY DEPRESSION, ANXIETY, AND PTSD. AS THE PHARMACOLOGICAL REMEDIES FOR THESE CONDITIONS OFTEN HAVE UNDESIRABLE SIDE-EFFECTS, NONPHARMACOLOGICAL REMEDIES ARE THOUGHT OF AS A POSSIBLE ADD-ON TREATMENT. YOGA IS ONE SUCH MIND-BODY INTERVENTION. THIS PAPER COVERS ELEVEN STUDIES INDEXED IN PUBMED, IN WHICH MENTAL HEALTH DISORDERS RESULTING FROM TRAUMA WERE MANAGED THROUGH YOGA INCLUDING MEDITATION. THE AIM WAS TO EVALUATE THE USE OF YOGA IN MANAGING TRAUMA-RELATED DEPRESSION, ANXIETY, PTSD AND PHYSIOLOGICAL STRESS FOLLOWING EXPOSURE TO NATURAL CALAMITIES, WAR, INTERPERSONAL VIOLENCE, AND INCARCERATION IN A CORRECTIONAL FACILITY. AN ATTEMPT HAS ALSO BEEN MADE TO EXPLORE POSSIBLE MECHANISMS UNDERLYING BENEFITS SEEN. AS MOST OF THESE STUDIES WERE NOT DONE ON PERSONS EXPOSED TO TRAUMA THAT HAD PRACTICED YOGA, THIS IS A DEFINITE AREA FOR FURTHER RESEARCH. 2012 17 2486 35 YOGA AS AN INTEGRATIVE APPROACH FOR PREVENTION AND TREATMENT OF ORAL CANCER. DESPITE TREMENDOUS ADVANCEMENTS IN MEDICINE, THE NUMBER OF ORAL CANCER CASES CONTINUES TO INCREASE, AND THE NEED FOR INTEGRATING ALTERNATE MEDICINE OR ADOPTING AN INTEGRATIVE APPROACH HAS BECOME A COMPELLING COST-EFFECTIVE REQUIREMENT FOR THE MANAGEMENT AND TREATMENT OF DISEASES. CONVENTIONAL TREATMENT OF ORAL CANCER INVOLVES SURGERY FOLLOWED BY RADIOTHERAPY WITH OR WITHOUT CHEMOTHERAPY WHICH CAUSES SEVERAL COMPLICATIONS INCLUDING POOR QUALITY OF LIFE AND HIGH CHANCES OF RECURRENCE OF CANCER. ORAL CANCER IS OFTEN LINKED WITH OBESITY WHICH IS MAJOR RISK FACTORS IN OTHER CANCERS. APART FROM OBESITY, ORAL CANCER IS THOUGHT TO HAVE AN INVERSE RELATION WITH NEURODEGENERATIVE DISORDERS PRESUMABLY BECAUSE CELL DEATH DECREASES IN THE FORMER CASE AND INCREASES IN THE LATTER. ANCIENT MIND-BODY TECHNIQUES SUCH AS YOGA HAVE NOT BEEN ADEQUATELY TESTED AS A TOOL TO SYNERGIZE THE CELLULAR EQUILIBRIUM PERTAINING TO THE TREATMENT OF ORAL CANCER. NERVE GROWTH FACTOR (NGF), TUMOR NECROSIS FACTOR-ALPHA (TNF-ALPHA), AND INTERLEUKIN-6 (IL-6) ARE AMONG THE EARLY EXPERIMENTAL CELLULAR BIOMARKERS THAT MAY BE USED TO PROBE THE MODULATION OF ORAL CANCER, OBESITY, AND NEURODEGENERATIVE DISORDERS. YOGA HAS BEEN REPORTED TO INFLUENCE THESE MOLECULES IN HEALTHY INDIVIDUALS BUT WHETHER THEIR EXPRESSION CAN BE ALTERED IN PATIENTS OF ORAL CANCER BY YOGA INTERVENTION IS THE SUBJECT OF THIS RESEARCH BEING DISCUSSED IN THIS REVIEW ARTICLE. THEREFORE, THE PRESENT ARTICLE NOT ONLY REVIEWS THE CURRENT STATUS OF RESEARCH STUDIES IN ORAL CANCER, OBESITY, AND NEURODEGENERATIVE DISORDERS BUT ALSO HOW THESE ARE LINKED TO EACH OTHER AND WHY THE INVESTIGATIONS OF THE PUTATIVE NGF PATHWAY, INVOLVING TNF-ALPHA AND IL-6, COULD PROVIDE USEFUL CLUES TO UNDERSTAND THE MOLECULAR EFFECTS BROUGHT ABOUT BY YOGA INTERVENTION IN SUCH PATIENTS. 2018 18 1669 27 NEUROPHYSIOLOGICAL AND NEUROCOGNITIVE MECHANISMS UNDERLYING THE EFFECTS OF YOGA-BASED PRACTICES: TOWARDS A COMPREHENSIVE THEORETICAL FRAMEWORK. DURING RECENT DECADES NUMEROUS YOGA-BASED PRACTICES (YBP) HAVE EMERGED IN THE WEST, WITH THEIR AIMS RANGING FROM FITNESS GAINS TO THERAPEUTIC BENEFITS AND SPIRITUAL DEVELOPMENT. YOGA IS ALSO BEGINNING TO SPARK GROWING INTEREST WITHIN THE SCIENTIFIC COMMUNITY, AND YOGA-BASED INTERVENTIONS HAVE BEEN ASSOCIATED WITH MEASUREABLE CHANGES IN PHYSIOLOGICAL PARAMETERS, PERCEIVED EMOTIONAL STATES, AND COGNITIVE FUNCTIONING. YBP TYPICALLY INVOLVE A COMBINATION OF POSTURES OR MOVEMENT SEQUENCES, CONSCIOUS REGULATION OF THE BREATH, AND VARIOUS TECHNIQUES TO IMPROVE ATTENTIONAL FOCUS. HOWEVER, SO FAR LITTLE IF ANY RESEARCH HAS ATTEMPTED TO DECONSTRUCT THE ROLE OF THESE DIFFERENT COMPONENT PARTS IN ORDER TO BETTER UNDERSTAND THEIR RESPECTIVE CONTRIBUTION TO THE EFFECTS OF YBP. A CLEAR OPERATIONAL DEFINITION OF YOGA-BASED THERAPEUTIC INTERVENTIONS FOR SCIENTIFIC PURPOSES, AS WELL AS A COMPREHENSIVE THEORETICAL FRAMEWORK FROM WHICH TESTABLE HYPOTHESES CAN BE FORMULATED, IS THEREFORE NEEDED. HERE WE PROPOSE SUCH A FRAMEWORK, AND OUTLINE THE BOTTOM-UP NEUROPHYSIOLOGICAL AND TOP-DOWN NEUROCOGNITIVE MECHANISMS HYPOTHESIZED TO BE AT PLAY IN YBP. 2015 19 82 36 A MECHANISTIC MODEL FOR YOGA AS A PREVENTIVE AND THERAPEUTIC MODALITY. YOGA IS AN ANCIENT INDIAN TECHNIQUE OF HEALTHY LIVING. NUMEROUS STUDIES HAVE CORROBORATED YOGA'S BENEFICIAL EFFECTS, INCLUDING A FAVORABLE INFLUENCE ON AUTONOMIC FUNCTION AND NEGATIVE EMOTIONS. EXTENSIVE RESEARCH IN THE LAST FEW DECADES HAS REVEALED THE CRITICAL ROLE THAT YOGA CAN PLAY IN ERADICATING STRESS. THIS HAS LAID TO THE FOUNDATION FOR A SCIENTIFIC UNDERSTANDING OF PATHOPHYSIOLOGICAL CHANGES ATTRIBUTED TO STRESS, PARTICULARLY AT THE MOLECULAR AND GENETIC LEVELS. THIS PRIMARILY HAS HELPED UNDERSTAND THE EPIGENETIC AND GENETIC MECHANISM AT PLAY TO INDUCE AND ALLEVIATE STRESS, PARTICULARLY THOSE RELATED TO EMOTIONAL ABERRATIONS. AS RESEARCH HAS INDICATED, NEGATIVE EMOTIONS ARE TRANSLATED INTO VASCULAR INFLAMMATION APPROPRIATELY ACCENTUATED BY A SYMPATHETIC PREDOMINANT AUTONOMIC FUNCTION. THIS CASCADE IS BOLSTERED BY MULTIPLE FACTORS, INCLUDING ACTIVATION OF "STRESSOR" GENES AND ELABORATING HORMONES, INCLUDING STEROIDS WITH SOMETIMES NOCUOUS CONSEQUENCES, PARTICULARLY WHEN CHRONIC. YOGA HAS BEEN CATEGORICALLY FOUND TO HAVE INHIBITED EACH AND EVERY ONE OF THESE BANEFUL EFFECTS OF STRESS. IN FACT, IT ALSO CHANGES THE NEURONAL CIRCUITS THAT POTENTIATE SUCH A PLETHORA OF PATHOLOGICAL CHANGES. THIS, IN TURN, HAS ACCENTUATED YOGA'S RELEVANCE AS A POWERFUL PREVENTIVE INTERVENTION IN NONCOMMUNICABLE DISEASES (NCD). NCDS, INCLUDING HEART DISEASE, STROKE, AND RHEUMATOLOGICAL DISORDERS, ARE ESSENTIALLY INFLAMMATORY DISEASES THAT PERPETUATE INFLAMMATION IN DIFFERENT BEDS LIKE VASCULAR OR JOINT SPACES. THE PRECISE MECHANISM BY WHICH YOGA INDUCES SUCH BENEFICIAL CHANGES IS YET TO BE DELINEATED. HOWEVER, A CORNUCOPIA OF POINTERS INDICATES THAT NEURAL, ENDOCRINE, IMMUNOLOGICAL, CELLULAR, GENETIC, AND EPIGENETIC MECHANISMS ARE AT PLAY. THIS ARTICLE ATTEMPTS TO COBBLE TOGETHER NEWFANGLED RESEARCH TO DELINEATE A MEDICAL MODEL FOR THIS 5000-YEAR-OLD PRACTICE FROM INDIA. THIS IS IMPERATIVE, AS A MECHANISTIC MODEL OF THIS ANCIENT-BUT-COMPLEX SYSTEM WOULD ENABLE A MORE COMPREHENSIVE UNDERSTANDING OF ITS MECHANISM AND REVEAL ITS YET-UNDISCOVERED POSITIVE HEALTH EFFECTS. 2021 20 588 29 DETERMINING PSYCHONEUROIMMUNOLOGIC MARKERS OF YOGA AS AN INTERVENTION FOR PERSONS DIAGNOSED WITH PTSD: A SYSTEMATIC REVIEW. THERE IS A GROWING BODY OF RESEARCH ON YOGA AS A THERAPEUTIC INTERVENTION FOR PSYCHOLOGICAL SYMPTOMS OF POST-TRAUMATIC STRESS DISORDER (PTSD) ACCOMPANIED BY SPECULATIONS ON UNDERLYING PHYSIOLOGIC MECHANISMS. THE PURPOSE OF THIS SYSTEMATIC REVIEW IS TO IDENTIFY, QUALITATIVELY EVALUATE, AND SYNTHESIZE STUDIES OF YOGA AS AN INTERVENTION FOR PTSD THAT MEASURED PHYSIOLOGIC OUTCOMES IN ORDER TO GAIN INSIGHTS INTO POTENTIAL MECHANISMS. THE FOCUS IS ON STUDIES EVALUATING YOGA AS A THERAPEUTIC INTERVENTION FOR PTSD RATHER THAN FOR TRAUMA EXPOSURE, PTSD PREVENTION, OR SUBCLINICAL PTSD. MULTIPLE DATABASES WERE SEARCHED FOR PUBLICATIONS FROM THE PAST TWO DECADES USING TERMS DERIVED FROM THE QUESTION, "IN PEOPLE WITH PTSD, WHAT IS THE EFFECT OF YOGA ON OBJECTIVE OUTCOMES?" ELIGIBILITY CRITERIA INCLUDED YOGA-ONLY MODALITIES TESTED AS AN INTERVENTION FOR FORMALLY DIAGNOSED PTSD WITH AT LEAST ONE PHYSIOLOGIC OUTCOME. RESULTS OF THIS REVIEW CONFIRMED THAT, THOUGH MUCH OF THE PUBLISHED LITERATURE PROPOSES PHYSIOLOGICAL MECHANISMS UNDERLYING YOGA'S EFFECTS ON PTSD, VERY FEW STUDIES ( N = 3) HAVE ACTUALLY EVALUATED PHYSIOLOGICAL EVIDENCE. ADDITIONALLY, SEVERAL STUDIES HAD METHODOLOGICAL LIMITATIONS. IN LIGHT OF THE LIMITED DATA SUPPORTING YOGA'S BENEFICIAL EFFECTS ON AUTONOMIC NERVOUS SYSTEM DYSREGULATION, WE PRESENT A THEORETICAL MODEL OF THE PSYCHONEUROIMMUNOLOGIC PROCESSES ASSOCIATED WITH PTSD AND THE EFFECTS YOGA MAY HAVE ON THESE PROCESSES TO GUIDE FUTURE RESEARCH. GAPS IN THE LITERATURE REMAIN FOR MECHANISMS RELATED TO ACTIVATION OF THE HYPOTHALAMIC-PITUITARY-ADRENAL AXIS AND INFLAMMATION. ADDITIONAL RIGOROUS MECHANISTIC STUDIES ARE NEEDED TO GUIDE DEVELOPMENT OF EFFECTIVE YOGA INTERVENTIONS FOR PTSD TO AUGMENT EXISTING EVIDENCE-BASED PTSD TREATMENTS. 2018