Institutet för Medicinsk Yoga · Värtavägen 35, nb · 115 29 Stockholm · Tel 08-21 03 30
©2005 IMY · Prisuppgifter, datum och innehåll gäller med reservation för ändringar · info@medicinskyoga.se · www.medicinskyoga.se
Under denna rubrik finns forskning om det endokrina körtelsystemet i samband med olika yogiska aktiviteter. Sammandragen ligger i kronologisk ordning.
F.n. finns totalt 9 sammandrag ur olika forskningsrapporter under rubriken ”Körtel”
_________________________________________________________________________________
J Indian Med Assoc 2002 Mar;100(3):178-80
Lifestyle modification in management of diabetes mellitus.
Sahay BK, Sahay RK.
Department of Medicine, Osmania Medical College, Hyderabad.
India has the largest diabetic population in the world. Change in eating habits, increasing weight and decreased physical activity are major factors leading to increased incidence of type 2 diabetes. Obesity is the most important modifiable risk factor. Smoking is an independent risk factor for type 2 diabetes mellitus. Diet and exercise are primary therapeutic options for its management. Dietary management should not only aim to achieve glycaemic control but to normalise dyslipidaemia. Smoking cessation reduces the risk of morbidity and mortality in CAD. Exercise improves the condition of a diabetic patient. Exercise includes yoga practices which have a role to play in the prevention of type 2 diabetes.
___________________________________________________________________________________
Sahay BK, Sahay RK.
Department of Medicine, Osmania Medical College, Hyderabad.
India has the largest diabetic population in the world. Change in eating habits, increasing weight and decreased physical activity are major factors leading to increased incidence of type 2 diabetes. Obesity is the most important modifiable risk factor. Smoking is an independent risk factor for type 2 diabetes mellitus. Diet and exercise are primary therapeutic options for its management. Dietary management should not only aim to achieve glycaemic control but to normalise dyslipidaemia. Smoking cessation reduces the risk of morbidity and mortality in CAD. Exercise improves the condition of a diabetic patient. Exercise includes yoga practices which have a role to play in the prevention of type 2 diabetes.
___________________________________________________________________________________
Biol Psychol 2000 May;53(1):69-78
Acute increases in night-time plasma melatonin levels following a period of meditation.
Tooley GA, Armstrong SM, Norman TR, Sali A.
School of Psychology, La Trobe University, Victoria, Bundoora, Australia. greggo@deakin.edu.au
To determine whether a period of meditation could influence melatonin levels, two groups of meditators were tested in a repeated measures design for changes in plasma melatonin levels at midnight. Experienced meditators practising either TM-Sidhi or another internationally well known form of yoga showed significantly higher plasma melatonin levels in the period immediately following meditation compared with the same period at the same time on a control night. It is concluded that meditation, at least in the two forms studied here, can affect plasma melatonin levels. It remains to be determined whether this is achieved through decreased hepatic metabolism of the hormone or via a direct effect on pineal physiology. Either way, facilitation of higher physiological melatonin levels at appropriate times of day might be one avenue through which the claimed health promoting effects of meditation occur.
___________________________________________________________________________________
Tooley GA, Armstrong SM, Norman TR, Sali A.
School of Psychology, La Trobe University, Victoria, Bundoora, Australia. greggo@deakin.edu.au
To determine whether a period of meditation could influence melatonin levels, two groups of meditators were tested in a repeated measures design for changes in plasma melatonin levels at midnight. Experienced meditators practising either TM-
___________________________________________________________________________________
Semin Urol Oncol 1999 May;17(2):111-8
Meditation and prostate cancer: integrating a mind/body intervention with traditional therapies.
Coker KH.
Robert W. Woodruff Health Sciences Center, Emory University, The Emory Clinic Inc., Atlanta, GA 30022, USA.
There is growing attention to the health benefits of mind/body interventions, particularly relaxation and meditation. Biomedical research has provided undeniable evidence of the interconnectedness of the mind and body. The field of psychoneuroimmunology has defined the role of stress in reducing effectiveness of the immune system in combating infection and growth of malignant tumors. This article explains the development of meditation practice and explores the indications that the practice of meditation is effective reducing the harmful effects of stress. In addition, there are encouraging reports of studies citing the influence of melatonin on breast and prostate tumors. A preliminary study finds an association between meditation practice and levels of melatonin produced by the pineal gland
___________________________________________________________________________________
Coker KH.
Robert W. Woodruff Health Sciences Center, Emory University, The Emory Clinic Inc., Atlanta, GA 30022, USA.
There is growing attention to the health benefits of mind/body interventions, particularly relaxation and meditation. Biomedical research has provided undeniable evidence of the interconnectedness of the mind and body. The field of psychoneuroimmunology has defined the role of stress in reducing effectiveness of the immune system in combating infection and growth of malignant tumors. This article explains the development of meditation practice and explores the indications that the practice of meditation is effective reducing the harmful effects of stress. In addition, there are encouraging reports of studies citing the influence of melatonin on breast and prostate tumors. A preliminary study finds an association between meditation practice and levels of melatonin produced by the pineal gland
___________________________________________________________________________________
Acta Physiol Scand Suppl 1997;640:158-62
Changes in cardiovascular risk factors and hormones during a comprehensive residential three month kriya yoga training and vegetarian nutrition.
Schmidt T, Wijga A, Von Zur Muhlen A, Brabant G, Wagner TO.
Department of Epidemiology & Social Medicine, Hannover Medical University, Germany.
In participants of a comprehensive residential three month yoga and mediation training programme living on a low fat lacto-vegetarian diet changes in cardiovascular risk factors and hormones were studied. Substantial risk factor reduction was found. Body mass index, total serum and LDL cholesterol, fibrinogen, and blood pressure were significantly reduced especially in those with elevated levels. Urinary excretion of adrenaline, noradrenaline, dopamine, aldosterone, as well as serum testosterone and luteinizing hormone levels were reduced, while cortisol excretion increased significantly.
___________________________________________________________________________________
Schmidt T, Wijga A, Von Zur Muhlen A, Brabant G, Wagner TO.
Department of Epidemiology & Social Medicine, Hannover Medical University, Germany.
In participants of a comprehensive residential three month yoga and mediation training programme living on a low fat lacto-
___________________________________________________________________________________
Biol Psychol 1995 Jun;40(3):251-65
The effects of running and meditation on beta-endorphin, corticotropin-releasing hormone and cortisol in plasma, and on mood.
Harte JL, Eifert GH, Smith R.
School of Behavioral Sciences, James Cook University of North Queensland, Townsville, Australia.
The relations between three hormones of the hypothalamic-pituitary-adrenocortical (HPA) axis, beta-endorphin (beta-EP), corticotropin-releasing hormone (CRH) and cortisol, and mood change were examined in 11 elite runners and 12 highly trained mediators matched in age, sex, and personality. Despite metabolic differences between running and meditation, we predicted that mood change after these activities would be similar when associated with similar hormonal change. Compared to pre-test and control values, mood was elevated after both activities but not significantly different between the two groups at post-test. There were significant elevations of beta-EP and CRH after running and of CRH after meditation, but no significant differences in CRH increases between groups. CRH was correlated with positive mood changes after running and mediation. Cortisol levels were generally high but erratic in both groups. We conclude that positive affect is associated with plasma CRH immunoreactivity which itself is significantly associated with circulating beta-EP supporting a role for CRH in the release of beta-EP. Increased CRH immunoreactivity following meditation indicates, however, that physical exercise is not an essential requirement for CRH release.
___________________________________________________________________________________
Harte JL, Eifert GH, Smith R.
School of Behavioral Sciences, James Cook University of North Queensland, Townsville, Australia.
The relations between three hormones of the hypothalamic-
___________________________________________________________________________________
Int J Biometeorol 1994 May;38(1):44-7
Effect of yogic exercises on thyroid function in subjects resident at sea level upon exposure to high altitude.
Rawal SB, Singh MV, Tyagi AK, Selvamurthy W, Chaudhuri BN.
Defence Institute of Physiology and Allied Sciences, Delhi Cantonment, India.
Using radioactive iodine, the effect of 1 month's yogic exercises has been investigated on the thyroid function of subjects resident at sea level (SL) specially after their exposure to high altitude (HA). The results have been compared with a group of SL subjects who underwent physical training (PT) exercises for the same duration. Ten healthy male volunteers in the age range of 20-30 years were used as test subjects in this study with each serving as his own control. The subjects were randomly divided into two groups of 5 each. One group practised hatha yogic exercises, while the other group performed the regular PT exercises. The thyroidal accumulation and release of radioactive iodine have been measured in each of the subjects of both groups before and after 1 month of their respective exercises at SL. One month of yogic exercises at SL has been observed to cause a significant reduction in the trans-thyroidal availability of radioiodine. The thyroid radioactivity in this group of subjects was always below normal levels with the exception of two peaks of radioactive iodine uptake, when the levels of radioactivity in the thyroid were similar to the control values of pre-yogic exercises. The release of radiolabel at 24-48 h was significantly increased after yogic exercises. In contrast, the subjects performing PT exercises for the same duration at SL showed significant thyroid uptake of radioactive iodine at 24 h. Subsequently their 131I uptake continued to rise slowly until 72 h without any demonstrable thyroidal release of radiolabel. This indicated that increased thyroid activity was induced by conventional PT exercises.
Rawal SB, Singh MV, Tyagi AK, Selvamurthy W, Chaudhuri BN.
Defence Institute of Physiology and Allied Sciences, Delhi Cantonment, India.
Using radioactive iodine, the effect of 1 month's yogic exercises has been investigated on the thyroid function of subjects resident at sea level (SL) specially after their exposure to high altitude (HA). The results have been compared with a group of SL subjects who underwent physical training (PT) exercises for the same duration. Ten healthy male volunteers in the age range of 20-
___________________________________________________________________________________
Diabetes Res Clin Pract 1993 Jan;19(1):69-74
A study of response pattern of non-insulin dependent diabetics to yoga therapy.
Jain SC, Uppal A, Bhatnagar SO, Talukdar B.
Laboratory Division, Central Research Institute for Yoga, Delhi, India.
Changes in blood glucose and glucose tolerance by oral glucose tolerance test (OGTT) after 40 days of yoga therapy in 149 non-insulin-dependent diabetics (NIDDM) were investigated. The response to yoga in these subjects was categorized according to a severity scale index (SSI) based on area index total (AIT) under OGTT curve. One hundred and four patients showed a fair to good response to the yoga therapy. There was a significant reduction in hyperglycemia and AIT with decrease in oral hypoglycemia and AIT with decrease in oral hypoglycemic drugs required for maintenance of normoglycemia. It is concluded that yoga, a simple and economical therapy, may be considered a beneficial adjuvant for NIDDM patients.
___________________________________________________________________________________
Jain SC, Uppal A, Bhatnagar SO, Talukdar B.
Laboratory Division, Central Research Institute for Yoga, Delhi, India.
Changes in blood glucose and glucose tolerance by oral glucose tolerance test (OGTT) after 40 days of yoga therapy in 149 non-
___________________________________________________________________________________
Med Hypotheses 1990 Nov;33(3):155-8
Seasonal affective disorder and the yoga paradigm: a reconsideration of the role of the pineal gland.
Leskowitz E.
Department of Psychiatry, VA Outpatient Clinic, Boston, MA 02108.
Seasonal Affective Disorder is a psychiatric disorder whose pathophysiology and clinical presentation are poorly understood. By applying the ancient paradigm of yoga psychology to this subject, new understandings of the syndrome emerge regarding the possible role of the pineal gland, the clinical presentation of the syndrome, and the possible mechanism of action of phototherapy. The energy depletion model presented here ties together such diverse elements as: dose-response aspects of phototherapy, anergia as a primary symptom of SAD, 'spring fever', myofascial pain disorder, the anti-gonadotrophic effect of melatonin, and pineal supersensitivity in bipolar patients. Clinical predictions are made, and simple research protocols are suggested which can directly test the hypotheses generated by this paradigm.
Leskowitz E.
Department of Psychiatry, VA Outpatient Clinic, Boston, MA 02108.
Seasonal Affective Disorder is a psychiatric disorder whose pathophysiology and clinical presentation are poorly understood. By applying the ancient paradigm of yoga psychology to this subject, new understandings of the syndrome emerge regarding the possible role of the pineal gland, the clinical presentation of the syndrome, and the possible mechanism of action of phototherapy. The energy depletion model presented here ties together such diverse elements as: dose-
___________________________________________________________________________________
Horm Behav 1978 Feb;10(1):54-60
Adrenocortical activity during meditation.
Jevning R, Wilson AF, Davidson JM.
We studied acute plasma cortisol and testosterone concentration changes during the practice known as "transcendental meditation" (TM) and during control rest. Three groups of normal, young adult volunteers were studied: a group of controls, these same controls restudied as practitioners after 3 to 4 months of TM practice, and a group of long-term, regular TM practitioners (3 to 5 years of practice). No change was found in controls during rest. Cortisol declined, but not significantly, in restudied controls, while cortisol decreased significantly in long-term practitioners during meditation and remained somewhat low afterward. No change in testerone concentration was noted during either rest or TM. Apparently, the practice of TM becomes associated with psychophysiologic response(s) which acutely inhibit pituitary-adrenal activity.
Jevning R, Wilson AF, Davidson JM.
We studied acute plasma cortisol and testosterone concentration changes during the practice known as "transcendental meditation" (TM) and during control rest. Three groups of normal, young adult volunteers were studied: a group of controls, these same controls restudied as practitioners after 3 to 4 months of TM practice, and a group of long-
