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 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 3 2013 28 SUDARSHAN KRIYA YOGA: A BREATH OF HOPE DURING COVID-19 PANDEMIC. IMPORTANT COUNTER MEASURES TO COMBAT AN INFECTIOUS DISEASE PANDEMIC INCLUDE VACCINATION, ANTIVIRAL THERAPY, AND IMMUNOMODULATION THERAPY. VACCINATIONS ARE DISEASE SPECIFIC AND MOREOVER STRAIN SPECIFIC, SO THE PROTECTION PROVIDED IS ALSO SPECIFIC AND LIMITED. ANTIVIRAL THERAPIES ARE COSTLY AND REQUIRE BULK PRODUCTION OF DRUGS, HENCE GLOBALLY THERE IS AN INCREASED INTEREST TOWARD LOW-RISK, COST-EFFECTIVE COMPLEMENTARY ALTERNATIVE THERAPIES, SUCH AS YOGA AND AYURVEDA TO TACKLE THE INFECTIOUS PANDEMIC, CORONAVIRUS DISEASE 2019 (COVID-19). THERE IS CLINICAL EVIDENCE AVAILABLE ON THE POTENTIAL COMPLEMENTARY ROLE OF YOGIC PRACTICES IN THE MANAGEMENT OF NONCOMMUNICABLE AND COMMUNICABLE DISEASES. VARIOUS ONLINE DATABASES WERE SEARCHED FOR ARTICLES PUBLISHED BETWEEN 2000 AND 2020. DATABASES EXPLORED WERE MEDLINE, EMBASE, INDIAN CITATION INDEX, PSYCINFO, INDEX MEDICUS FOR SOUTH-EAST ASIA REGION, AND GOOGLE SCHOLAR. ALL SEARCH RESULTS WERE SCREENED, AND ARTICLES RELATED TO KEYWORDS SUCH AS COVID-19, YOGA THERAPY, AND SUDARSHAN KRIYA YOGA (SKY) WERE SELECTED FOR DATA EXTRACTION. QUALITY OF THE STUDIES INCLUDED WAS EVALUATED ON THE BASIS OF THE CONSTRUCT VALIDITY, CONTENT VALIDITY, RELEVANCE, BIAS, CREDIBILITY RELATING TO INFORMATION, AND DATA SOURCES. SKY IS A UNIQUE YOGIC PRACTICE THAT INCLUDES SPECIFIC SEQUENTIAL BREATHING TECHNIQUES. IT BALANCES THE AUTONOMIC NERVOUS SYSTEM AND THUS CAN ALLEVIATE ANXIETY, ROUTINE STRESS, DEPRESSION, STRESS-RELATED MEDICAL DISORDERS, AND POSTTRAUMATIC STRESS. IT POTENTIATES NATURAL HOST IMMUNE DEFENSES THAT ARE ESSENTIAL TO TACKLE A PLETHORA OF MICROBIAL INFECTIONS. THIS NARRATIVE REVIEW ARTICLE PROVIDES AN OVERVIEW OF POTENTIAL THERAPEUTIC BENEFITS THAT SKY CAN OFFER TO THE POPULATION AT LARGE DURING THIS COVID-19 PANDEMIC. 2021 4 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 5 2516 19 YOGA CLINICAL RESEARCH REVIEW. IN THIS PAPER RECENT RESEARCH IS REVIEWED ON THE EFFECTS OF YOGA POSES ON PSYCHOLOGICAL CONDITIONS INCLUDING ANXIETY AND DEPRESSION, ON PAIN SYNDROMES, CARDIOVASCULAR, AUTOIMMUNE AND IMMUNE CONDITIONS AND ON PREGNANCY. FURTHER, THE PHYSIOLOGICAL EFFECTS OF YOGA INCLUDING DECREASED HEARTRATE AND BLOOD PRESSURE AND THE PHYSICAL EFFECTS INCLUDING WEIGHT LOSS AND INCREASED MUSCLE STRENGTH ARE REVIEWED. FINALLY, POTENTIAL UNDERLYING MECHANISMS ARE PROPOSED INCLUDING THE STIMULATION OF PRESSURE RECEPTORS LEADING TO ENHANCED VAGAL ACTIVITY AND REDUCED CORTISOL. THE REDUCTION IN CORTISOL, IN TURN, MAY CONTRIBUTE TO POSITIVE EFFECTS SUCH AS ENHANCED IMMUNE FUNCTION AND A LOWER PREMATURITY RATE. 2011 6 2411 24 YOGA AND IMMUNE SYSTEM FUNCTIONING: A SYSTEMATIC REVIEW OF RANDOMIZED CONTROLLED TRIALS. YOGA IS AN ANCIENT MIND-BODY PRACTICE THAT IS INCREASINGLY RECOGNIZED TO HAVE HEALTH BENEFITS IN A VARIETY OF CLINICAL AND NON-CLINICAL CONDITIONS. THIS SYSTEMATIC REVIEW SUMMARIZES THE FINDINGS OF RANDOMIZED CONTROLLED TRIALS EXAMINING THE EFFECTS OF YOGA ON IMMUNE SYSTEM FUNCTIONING WHICH IS IMPERATIVE TO JUSTIFY ITS APPLICATION IN THE CLINIC. FIFTEEN RCTS WERE ELIGIBLE FOR THE REVIEW. EVEN THOUGH THE EXISTING EVIDENCE IS NOT ENTIRELY CONSISTENT, A GENERAL PATTERN EMERGED SUGGESTING THAT YOGA CAN DOWNREGULATE PRO-INFLAMMATORY MARKERS. IN PARTICULAR, THE QUALITATIVE EVALUATION OF RCTS REVEALED DECREASES IN IL-1BETA, AS WELL AS INDICATIONS FOR REDUCTIONS IN IL-6 AND TNF-ALPHA. THESE RESULTS IMPLY THAT YOGA MAY BE IMPLEMENTED AS A COMPLEMENTARY INTERVENTION FOR POPULATIONS AT RISK OR ALREADY SUFFERING FROM DISEASES WITH AN INFLAMMATORY COMPONENT. BEYOND THIS, YOGA PRACTICE MAY EXERT FURTHER BENEFICIAL EFFECTS BY ENHANCING CELL-MEDIATED AND MUCOSAL IMMUNITY. IT IS HYPOTHESIZED THAT LONGER TIME SPANS OF YOGA PRACTICE ARE REQUIRED TO ACHIEVE CONSISTENT EFFECTS ESPECIALLY ON CIRCULATING INFLAMMATORY MARKERS. OVERALL, THIS FIELD OF INVESTIGATION IS STILL YOUNG, HENCE THE CURRENT BODY OF EVIDENCE IS SMALL AND FOR MOST IMMUNE PARAMETERS, MORE RESEARCH IS REQUIRED TO DRAW DISTINCT CONCLUSIONS. 2018 7 2272 33 THE ROLE OF YOGA IN INFLAMMATORY MARKERS. YOGA IS AN ANCIENT SYSTEM FOR INTEGRATING THE MIND, BODY, AND SPIRIT. IN THE HATHA YOGA ASHTANGA TRADITION (THE EIGHT LIMB PATANJALI YOGA), THREE OF THE LIMBS ARE MEDITATION, BREATHWORK (PRANAYAMA) AND PHYSICAL POSTURES (ASANA), WHICH ARE WIDELY PRACTISED IN YOGA CLASSES. THE BENEFITS OF YOGA FOR MENTAL AND PHYSICAL HEALTH ARE ROOTED IN THE PRACTICE'S ORIGINS: IN YOGA, STRESS IS SAID TO BE THE ROOT OF ALL DISEASES. THE ESTABLISHED FIELDS OF PSYCHONEUROIMMUNOLOGY AND IMMUNOPSYCHIATRY STUDY THE INTERPLAY BETWEEN THE IMMUNE SYSTEM AND MOOD OR MENTAL STATES. THIS MINI-REVIEW HAS SHIFTED THE EMPHASIS FROM RESEARCH THAT FOCUSES ON YOGA'S BENEFITS FOR STRESS, THE MOST COMMONLY STUDIED OUTCOME OF YOGA RESEARCH, TO A SUMMARY OF THE RESEARCH ON THE EFFECTS OF YOGA PRACTICES ON THE IMMUNE SYSTEM. THE CURRENT LITERATURE BEARS STRONG EVIDENCE FOR THE BENEFITS OF YOGA ON THE LEVELS OF CIRCULATING CORTISOL AND CLASSICAL INFLAMMATORY MARKERS, SUCH AS C-REACTIVE PROTEIN (CRP) AND CYTOKINES SUCH AS INTERLEUKIN-1 BETA (IL-1BETA), INTERLEUKIN 6 (IL-6), TUMOUR NECROSIS FACTOR-ALPHA (TNF-ALPHA) AND INTERFERON-GAMMA (INF-GAMMA). THE EVIDENCE FOR OTHER LESS STUDIED MARKERS, TELOMERASE ACTIVITY, BETA-ENDORPHINS, IMMUNOGLOBULIN A (IGA) AND BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF) IS ALSO GROWING. THIS MINI-REVIEW CENTRES AROUND THE INTERPLAY BETWEEN YOGA AND THESE MARKERS IN STRESS MANAGEMENT AND DEPRESSION, VASCULAR AND IMMUNE FUNCTION IN THE OLDER POPULATION, CARDIOVASCULAR AND METABOLIC DISEASES, AUTO-IMMUNE DISEASES, BREAST CANCER AND PREGNANCY. OVERALL, THE LITERATURE EXAMINED REVEALS THE NOVELTY OF THIS FIELD OF RESEARCH AND SHEDS LIGHT ON METHODOLOGICAL CHALLENGES; HOWEVER, IT UNCOVERS THE POTENTIAL FOR YOGA TO BE USED AS ADJUVANT THERAPY IN CONDITIONS WITH AN INFLAMMATORY COMPONENT. 2022 8 1640 36 MOLECULAR SIGNATURE OF THE IMMUNE RESPONSE TO YOGA THERAPY IN STRESS-RELATED CHRONIC DISEASE CONDITIONS: AN INSIGHT. THE WORLD HEALTH ORGANIZATION DEFINES HEALTH AS COMPLETE WELL-BEING IN TERMS OF PHYSICAL, MENTAL AND SOCIAL, AND NOT MERELY THE ABSENCE OF DISEASE. TO ATTAIN THIS, INDIVIDUAL SHOULD ADAPT AND SELF-MANGE THE SOCIAL, PHYSICAL AND EMOTIONAL CHALLENGES OF LIFE. EXPOSURE TO CHRONIC STRESS DUE TO URBANIZATION, WORK STRESS, NUCLEAR FAMILY, POLLUTION, UNHEALTHY FOOD HABITS, LIFESTYLE, ACCIDENTAL DEATH IN THE FAMILY, AND NATURAL CALAMITIES ARE THE TRIGGERING FACTORS, LEADING TO HORMONAL IMBALANCE AND INFLAMMATION IN THE TISSUE. THE RELATIONSHIP BETWEEN STRESS AND ILLNESS IS COMPLEX; ALL CHRONIC ILLNESSES SUCH AS CARDIOVASCULAR DISEASE AND ASTHMA HAVE THEIR ROOT IN CHRONIC STRESS ATTRIBUTED BY INFLAMMATION. IN RECENT TIMES, YOGA THERAPY HAS EMERGED AS AN IMPORTANT COMPLEMENTARY ALTERNATIVE MEDICINE FOR MANY HUMAN DISEASES. YOGA THERAPY HAS A POSITIVE IMPACT ON MIND AND BODY; IT ACTS BY INCORPORATING APPROPRIATE BREATHING TECHNIQUES AND MINDFULNESS TO ATTAIN CONSCIOUS DIRECTION OF OUR AWARENESS OF THE PRESENT MOMENT BY MEDITATION, WHICH HELPS ACHIEVE HARMONY BETWEEN THE BODY AND MIND. STUDIES HAVE ALSO DEMONSTRATED THE IMPORTANT REGULATORY EFFECTS OF YOGA THERAPY ON BRAIN STRUCTURE AND FUNCTIONS. DESPITE THESE ADVANCES, THE CELLULAR AND MOLECULAR MECHANISMS BY WHICH YOGA THERAPY RENDERS ITS BENEFICIAL EFFECTS ARE INADEQUATELY KNOWN. A GROWING BODY OF EVIDENCE SUGGESTS THAT YOGA THERAPY HAS IMMUNOMODULATORY EFFECTS. HOWEVER, THE PRECISE MECHANISTIC BASIS HAS NOT BEEN ADDRESSED EMPIRICALLY. IN THIS REVIEW, WE HAVE ATTEMPTED TO HIGHLIGHT THE EFFECT OF YOGA THERAPY ON IMMUNE SYSTEM FUNCTIONING WITH AN AIM TO IDENTIFY IMPORTANT IMMUNOLOGICAL SIGNATURES THAT INDEX THE EFFECT OF YOGA THERAPY. TOWARD THIS, WE HAVE SUMMARIZED THE AVAILABLE SCIENTIFIC EVIDENCE SHOWING POSITIVE IMPACTS OF YOGA THERAPY. FINALLY, WE HAVE EMPHASIZED THE EFFICACY OF YOGA IN IMPROVING PHYSICAL AND MENTAL WELL-BEING. YOGA HAS BEEN A PART OF INDIAN CULTURE AND TRADITION FOR LONG; NOW, THE TIME HAS COME TO SCIENTIFICALLY VALIDATE THIS AND IMPLEMENT THIS AS AN ALTERNATIVE TREATMENT METHOD FOR STRESS-RELATED CHRONIC DISEASE. 2020 9 2014 32 SUDARSHAN KRIYA YOGA: BREATHING FOR HEALTH. BREATHING TECHNIQUES ARE REGULARLY RECOMMENDED FOR RELAXATION, STRESS MANAGEMENT, CONTROL OF PSYCHOPHYSIOLOGICAL STATES, AND TO IMPROVE ORGAN FUNCTION. YOGIC BREATHING, DEFINED AS A MANIPULATION OF BREATH MOVEMENT, HAS BEEN SHOWN TO POSITIVELY AFFECT IMMUNE FUNCTION, AUTONOMIC NERVOUS SYSTEM IMBALANCES, AND PSYCHOLOGICAL OR STRESS-RELATED DISORDERS. THE AIM OF THIS STUDY WAS TO ASSESS AND PROVIDE A COMPREHENSIVE REVIEW OF THE PHYSIOLOGICAL MECHANISMS, THE MIND-BODY CONNECTION, AND THE BENEFITS OF SUDARSHAN KRIYA YOGA (SKY) IN A WIDE RANGE OF CLINICAL CONDITIONS. VARIOUS ONLINE DATABASES SEARCHED WERE MEDLINE, PSYCHINFO, EMBASE, AND GOOGLE SCHOLAR. ALL THE RESULTS WERE CAREFULLY SCREENED AND ARTICLES ON SKY WERE SELECTED. THE REFERENCES FROM THESE ARTICLES WERE CHECKED TO FIND ANY OTHER POTENTIALLY RELEVANT ARTICLES. SKY, A UNIQUE YOGIC BREATHING PRACTICE, INVOLVES SEVERAL TYPES OF CYCLICAL BREATHING PATTERNS, RANGING FROM SLOW AND CALMING TO RAPID AND STIMULATING. THERE IS MOUNTING EVIDENCE TO SUGGEST THAT SKY CAN BE A BENEFICIAL, LOW-RISK, LOW-COST ADJUNCT TO THE TREATMENT OF STRESS, ANXIETY, POST-TRAUMATIC STRESS DISORDER, DEPRESSION, STRESS-RELATED MEDICAL ILLNESSES, SUBSTANCE ABUSE, AND REHABILITATION OF CRIMINAL OFFENDERS. 2013 10 1789 25 PRELIMINARY INDICATIONS OF THE EFFECT OF A BRIEF YOGA INTERVENTION ON MARKERS OF INFLAMMATION AND DNA METHYLATION IN CHRONICALLY STRESSED WOMEN. YOGA IS ASSOCIATED WITH REDUCED STRESS AND INCREASED WELL-BEING, ALTHOUGH THE MOLECULAR BASIS FOR THESE BENEFITS IS NOT CLEAR. MOUNTING EVIDENCE IMPLICATES THE IMMUNE RESPONSE, WITH CURRENT STUDIES FOCUSED ON PROTEIN IMMUNE MARKERS (SUCH AS CYTOKINES) IN CLINICAL POPULATIONS. TO EXPLORE THE MOLECULAR IMPACT, THIS PILOT STUDY USES A SUBSAMPLE (N=28) FROM A RANDOMISED WAITLIST CONTROL TRIAL INVESTIGATING THE IMPACT OF AN 8-WEEK YOGA INTERVENTION IN A COMMUNITY POPULATION OF WOMEN REPORTING PSYCHOLOGICAL DISTRESS (N=116). WE MEASURED INTERLEUKIN-6 (IL-6), TUMOUR NECROSIS FACTOR (TNF) AND C-REACTIVE PROTEIN (CRP) PROTEIN LEVELS, AND THE DNA METHYLATION OF THESE GENES AND THE GLOBAL INDICATOR, LINE-1. CORRELATIONS BETWEEN THESE AND PSYCHOLOGICAL VARIABLES WERE EXPLORED, IDENTIFYING MODERATE CORRELATIONS WITH CRP PROTEIN LEVELS, AND METHYLATION OF IL-6, CRP AND LINE-1. MANY CYTOKINE SAMPLES WERE BELOW DETECTION, HOWEVER A MANN-WHITNEY U DEMONSTRATED A TREND OF MODERATE BETWEEN-GROUP EFFECT FOR ELEVATED IL-6 IN THE YOGA GROUP. METHYLATION ANALYSES APPLIED CROSS-SECTIONAL AND NON-CONTROLLED LONGITUDINAL ANALYSES. WAIST-TO-HEIGHT RATIO AND AGE WERE COVARIED. WE DEMONSTRATED REDUCED METHYLATION OF THE TNF REGION IN THE YOGA GROUP RELATIVE TO THE WAITLIST CONTROL GROUP. NO OTHER GENES DEMONSTRATED A SIGNIFICANT DIFFERENCE. LONGITUDINAL ANALYSIS FURTHER SUPPORTED THESE RESULTS. THIS STUDY IS ONE OF THE FIRST TO EXPLORE YOGA AND IMMUNOLOGICAL MARKERS IN A NON-CLINICAL POPULATION, AND IS THE FIRST STUDY TO EXPLORE DNA METHYLATION. THESE FINDINGS INDICATE THAT FURTHER RESEARCH INTO MOLECULAR IMPACT OF YOGA ON MARKERS OF IMMUNE FUNCTION IS WARRANTED, WITH LARGER STUDIES REQUIRED. 2016 11 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 12 226 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 13 100 22 A PERSPECTIVE ON YOGA AS A PREVENTIVE STRATEGY FOR CORONAVIRUS DISEASE 2019. THE PANDEMIC OUTBREAK OF CORONAVIRUS DISEASE 2019 (COVID-19) INFECTION CAUSED BY SEVERE ACUTE RESPIRATORY SYNDROME-CORONAVIRUS 2 HAS LED TO PROFOUND PUBLIC HEALTH CRISIS. IN PARTICULAR, INDIVIDUALS WITH PREEXISTING CONDITIONS OF HEART DISEASE, DIABETES, CEREBROVASCULAR DISEASES AND THE ELDERLY ARE MOST VULNERABLE TO SUCCUMB TO THIS INFECTION. THE CURRENT COVID-19 EMERGENCY CALLS FOR RAPID DEVELOPMENT OF POTENTIAL PREVENTION AND MANAGEMENT STRATEGIES AGAINST THIS VIRUS-MEDIATED DISEASE. THERE IS A PLETHORA OF EVIDENCE THAT SUPPORTS THE ADD-ON BENEFITS OF YOGA IN STRESS MANAGEMENT, AS WELL AS PREVENTION AND MANAGEMENT OF CHRONIC NONCOMMUNICABLE DISEASES. THERE ARE SOME STUDIES ON THE EFFECT OF YOGA IN COMMUNICABLE DISEASES AS WELL BUT VERY FEW FOR ACUTE CONDITIONS AND ALMOST NONE FOR THE RAPIDLY SPREADING INFECTIONS RESULTING IN PANDEMICS. BASED ON THE AVAILABLE SCIENTIFIC EVIDENCES ON YOGA IN IMPROVING RESPIRATORY AND IMMUNE FUNCTIONS, WE HAVE FORMULATED VERY SIMPLE DOABLE INTEGRATED YOGA MODULES IN THE FORM OF VIDEOS TO BE PRACTICED FOR PREVENTION OF THE DISEASE BY CHILDREN, ADULTS, AND THE ELDERLY. 2020 14 683 33 EFFECT OF AN 8-WEEK YOGA-BASED LIFESTYLE INTERVENTION ON PSYCHO-NEURO-IMMUNE AXIS, DISEASE ACTIVITY, AND PERCEIVED QUALITY OF LIFE IN RHEUMATOID ARTHRITIS PATIENTS: A RANDOMIZED CONTROLLED TRIAL. VARIOUS EXTERNAL STRESSORS AND ENVIRONMENTAL CHALLENGES LEAD TO THE PROVOCATION OF THE IMMUNE SYSTEM IN AUTOIMMUNE DISEASES LIKE RHEUMATOID ARTHRITIS (RA). THE INAPPROPRIATE IMMUNE RESPONSE FURTHER TRIGGERS THE CASCADE OF INFLAMMATORY CHANGES RESULTING IN PRECIPITATION OF SYMPTOMS AND HAMPERS QUALITY OF LIFE (QOL). THE UNDERLYING PSYCHO-SOMATIC COMPONENT OF THE DISEASE REQUIRES A HOLISTIC APPROACH TO ITS TREATMENT DIMENSION RATHER THAN THE USE OF PHARMACOTHERAPY. THE APPLICABILITY OF MIND-BODY INTERVENTIONS HAS BECOME ESSENTIAL IN TODAY'S FAST-PACED LIFE. YOGA, A MIND-BODY TECHNIQUE, ALTERS THE MIND'S CAPACITY TO FACILITATE SYSTEMIC FUNCTIONING AT MULTIPLE ORGAN SYSTEM LEVELS. HENCE, WE CONDUCTED THIS STUDY TO EVALUATE THE IMPACT OF 8 WEEKS OF A YOGA-BASED LIFESTYLE INTERVENTION (YBLI) ON PSYCHO-NEURO-IMMUNE MARKERS, GENE EXPRESSION PATTERNS, AND QOL IN RA PATIENTS ON ROUTINE MEDICAL THERAPY. A TOTAL OF 66 PATIENTS WERE RANDOMIZED INTO TWO GROUPS: YOGA GROUP OR NON-YOGA GROUP AND WERE ASSESSED FOR A PANEL OF INFLAMMATORY CYTOKINES (IL-6, IL-17A, TNF-ALPHA, AND TGF-BETA), MIND-BODY COMMUNICATIVE MARKERS (BDNF, DHEAS, BETA-ENDORPHIN, AND SIRTUIN) AND TRANSCRIPT LEVELS OF VARIOUS GENES (IL-6, TNF-ALPHA, NFKB1, TGF-BETA, AND CTLA4). WE ASSESSED DISEASE ACTIVITY AND QOL USING THE DAS28-ESR AND WHOQOL-BREF QUESTIONNAIRE, RESPECTIVELY. YOGA GROUP OBSERVED SIGNIFICANT IMPROVEMENTS IN THE LEVELS OF MARKERS, WHICH INFLUENCED THE PSYCHO-NEURO-IMMUNE AXIS (P < 0.001) WITH AN ESTIMATED EFFECT SIZE FROM SMALL TO MEDIUM RANGE. IN THE YOGA GROUP, THERE WAS A SIGNIFICANT REDUCTION IN DAS28-ESR (P < 0.001) AND IMPROVEMENT SEEN IN THE PHYSICAL HEALTH, PSYCHOLOGICAL, SOCIAL RELATIONSHIPS DOMAINS (P < 0.001) OF QOL, EXCEPT ENVIRONMENTAL (P > 0.05). THE YOGA GROUP SHOWED DOWNREGULATION OF IL-6, TNF-ALPHA, AND CTLA4 AND UPREGULATION OF TGF-BETA. THESE RESULTS SUGGEST THAT A DECREASE IN DISEASE ACTIVITY AFTER YOGA PRACTICE IS ASSOCIATED WITH A SIGNIFICANT REDUCTION IN INFLAMMATORY CYTOKINES, THE ELEVATION OF MIND-BODY COMMUNICATIVE MARKERS, AND NORMALIZATION OF VARIOUS TRANSCRIPT LEVELS, WHICH IMPROVED QOL. THUS THE ADOPTION OF YBLI IMPROVES CLINICAL OUTCOME IN RA, AND DECREASES SYSTEMIC INFLAMMATION BY ITS BENEFICIAL EFFECTS ON PSYCHO-NEURO-IMMUNE AXIS AND NORMALIZATION OF DYSREGULATED TRANSCRIPTS. THUS YBLI MAY BE USED FOR RA PATIENTS AS AN ADJUNCTIVE THERAPY. 2020 15 1890 34 REGULATION OF GENE EXPRESSION BY YOGA, MEDITATION AND RELATED PRACTICES: A REVIEW OF RECENT STUDIES. INTEGRATIVE MEDICINE (IM) APPROACHES HAVE GAINED SIGNIFICANT INTEREST IN RECENT YEARS TO PROVIDE A SOLUTION FOR THE HEALTH CARE CHALLENGES WE FACE TODAY. YOGIC COGNITIVE-BEHAVIORAL PRACTICES ARE AMONG THE MOST WIDELY USED IM APPROACHES AND INCLUDE DIVERSE PRACTICES SUCH AS YOGA ASANAS, MEDITATION, BREATHING EXERCISES, QI GONG, TAI CHI CHIH, AND VARIOUS OTHERS. STUDIES TO DATE SUGGEST THAT THESE YOGIC/MEDITATIVE PRACTICES HAVE SIGNIFICANT POSITIVE EFFECTS ON THE MIND-BODY SYSTEM AND THEREBY CAN INCREASE WELLNESS AND SUPPORT THE HEALING PROCESS FROM DISEASE. PREVIOUS WORK HAS PROVIDED EVIDENCE FOR BOTH PSYCHOLOGICAL AND PHYSIOLOGICAL EFFECTS OF THESE PRACTICES; HOWEVER, THE MECHANISMS OF THESE EFFECTS, ESPECIALLY AT THE MOLECULAR LEVEL, HAVE LARGELY BEEN MISSING. THREE RECENT STUDIES STARTED TO PROVIDE SOME OF THIS INFORMATION THROUGH GENE EXPRESSION PROFILING IN CIRCULATING IMMUNE CELLS, WHICH SUPPORT THE HYPOTHESIS THAT YOGIC/MEDITATIVE PRACTICES HAVE A MEASURABLE EFFECT AT THE MOLECULAR LEVEL. THESE STUDIES ARE REVIEWED HEREIN AND SOME FUTURE PERSPECTIVES ARE CONSIDERED. 2013 16 2668 27 YOGA IN MAJOR DEPRESSIVE DISORDER: MOLECULAR MECHANISMS AND CLINICAL UTILITY. MAJOR DEPRESSIVE DISORDER (MDD) IS A MIND-BODY DISORDER. CELLULAR AGING HAS BEEN IMPLICATED IN THE PATHOGENESIS OF MDD WITH THE ALTERED MIND-BODY COMMUNICATION MARKERS LIKE STRESS RESPONSE, IMMUNE RESPONSE, NUTRITION SENSING, AND A RANGE OF OTHER REGULATORY FEEDBACK SYSTEMS. IN THIS AGE OF SUPER SPECIALIZATIONS, ONE SPECIFIC TARGET AND INTERVENTIONS (PREFERABLY A DRUG) ON IT ARE BEING RIGOROUSLY SOUGHT BY THE HEALTH CARE COMMUNITY AND INDUSTRY, BUT HAVE FAILED IN IT IN THE LAST FIFTY YEARS IN SPITE OF ADVANCES IN TECHNOLOGY. SINCE, DEPRESSION IS A COMPLEX DISORDER ASSOCIATED WITH INCREASED INCIDENCE OF OTHER COMPLEX DISORDERS, IT MUST BE TREATED BY AN INTEGRATED HOLISTIC APPROACH THAT CAN ADDRESS THE COMPLEXITY OF MDD. INTERVENTIONS TARGETING ACCELERATED BIOLOGICAL AGING TO INCREASE CELLULAR HEALTH IN WHOLE BODY HAVE POTENTIAL TO MANAGE COMPLEX CONDITIONS LIKE MDD AND ITS OVERLAPPING SYMPTOMS AND COMORBIDITIES. YOGA HAS THE POTENTIAL TO BE THE NEXUS BETWEEN, CLINICAL MANAGEMENT OF MDD AND OTHER LIFESTYLE DISEASES. 2021 17 2298 20 THERAPEUTIC ROLE OF YOGA IN TYPE 2 DIABETES. YOGA ORIGINATED IN INDIA MORE THAN 5,000 YEARS AGO AND IS A MEANS OF BALANCING AND HARMONIZING THE BODY, MIND, AND EMOTIONS. YOGA PRACTICE IS USEFUL IN THE MANAGEMENT OF VARIOUS LIFESTYLE DISEASES, INCLUDING TYPE 2 DIABETES. PSYCHO-NEURO-ENDOCRINE AND IMMUNE MECHANISMS ARE INVOLVED IN THE BENEFICIAL EFFECTS OF YOGA ON DIABETES. INCORPORATION OF YOGA PRACTICE IN DAILY LIFE HELPS TO ATTAIN GLYCAEMIC CONTROL AND REDUCES THE RISK OF COMPLICATIONS IN PEOPLE WITH DIABETES. IN THIS REVIEW, WE BRIEFLY DESCRIBE THE ROLE OF VARIOUS YOGA PRACTICES IN THE MANAGEMENT OF DIABETES BASED ON EVIDENCE FROM VARIOUS CLINICAL STUDIES. 2018 18 2412 24 YOGA AND ITS IMPACT ON CHRONIC INFLAMMATORY AUTOIMMUNE ARTHRITIS. RHEUMATOID ARTHRITIS (RA) IS ONE OF THE MOST COMMON CHRONIC INFLAMMATORY AUTOIMMUNE DISEASES, WHICH ADVERSELY AFFECTS THE QUALITY OF LIFE. RA IS A DISEASE OF UNKNOWN ETIOLOGY, HOWEVER, BOTH GENETIC AND ENVIRONMENTAL FACTORS APPEAR TO CONTRIBUTE TO THE SUSCEPTIBILITY TO THIS DISEASE. THE SEVERITY AND PROGRESSION OF THE DISEASE ARE ATTRIBUTABLE TO THE RELEASE OF A HOST OF INFLAMMATORY CYTOKINES, CYTOTOXIC AND IMMUNE REGULATORY FACTORS. THE TREATMENTS OF RA ARE PRIMARILY LIMITED TO SYMPTOMATIC ALLEVIATION OF PAIN OR OTHER SYMPTOMS OR TO THE USE OF CYTOTOXIC DRUG TREATMENT IN SEVERE FORMS OF THE DISEASE WHICH IS COMMONLY ASSOCIATED WITH SIGNIFICANT SIDE EFFECTS. DESPITE LACK OF A CURE, THE DISEASE MAY BE CONTROLLED BY MIND-BODY INTERVENTIONS. HOLISTIC TREATMENTS SUCH AS YOGA SIGNIFICANTLY IMPROVE AND REDUCE THE PSYCHO-SOMATIC SYMPTOMS, PAIN PERCEPTION, DISABILITY QUOTIENT, JOINT FLEXIBILITY, RANGE OF MOTION, POSTURE, MUSCLE STRENGTH, COORDINATION, AND DISEASE ACTIVITY. HERE, WE DISCUSS THE FEATURES OF RA AND ADDRESS HOW YOGA CAN BE USED AS A THERAPEUTIC REGIMEN TO IMPROVE THE QUALITY OF LIFE OF PATIENTS WITH RA. 2021 19 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 20 1911 22 ROLE OF AYURVEDA AND YOGA-BASED LIFESTYLE IN THE COVID-19 PANDEMIC - A NARRATIVE REVIEW. THE COVID-19 PANDEMIC HAS POSED AN IMMENSE CHALLENGE TO HEALTH CARE SYSTEMS AROUND THE GLOBE IN TERMS OF LIMITED HEALTH CARE FACILITIES AND PROVEN MEDICAL THERAPEUTICS TO ADDRESS THE SYMPTOMS OF THE INFECTION. THE CURRENT HEALTH CARE STRATEGIES ARE PRIMARILY FOCUSED ON EITHER THE PATHOGEN OR THE ENVIRONMENTAL FACTORS. HOWEVER, EFFORTS TOWARDS STRENGTHENING THE HOST IMMUNITY ARE IMPORTANT FROM PUBLIC HEALTH PERSPECTIVE TO PREVENT THE SPREAD OF INFECTION AND DOWNREGULATE THE POTENCY OF THE INFECTIOUS AGENT. WHILE A VACCINE CAN INDUCE SPECIFIC IMMUNITY IN THE HOST, NON-SPECIFIC WAYS OF IMPROVING OVERALL HOST IMMUNITY ARE NEEDED AS WELL. THIS SCENARIO HAS PAVED THE WAY FOR THE USE OF TRADITIONAL INDIAN THERAPIES SUCH AS AYURVEDA AND YOGA. THIS REVIEW AIMS AT COLLATING AVAILABLE EVIDENCE ON AYURVEDA, YOGA, AND COVID-19. FURTHER, IT DRAWS INFERENCES FROM RECENT STUDIES ON YOGA AND AYURVEDA ON IMMUNITY, RESPIRATORY HEALTH, AND MENTAL HEALTH RESPECTIVELY TO APPROXIMATE ITS PROBABLE ROLE IN PROPHYLAXIS AND AS AN ADD-ON MANAGEMENT OPTION FOR THE CURRENT PANDEMIC. 2022