Extracorporeal biological perfusion of the isolated dog thyroid gland

Turakulov, Ya. Kh.; Ismailov, Said; Tashkhodzhaeva, T. P.; Shakhizirov, D.; Burikhanov, Ravshan

doi:10.1007/bf00854707

Cited by 1 publication

(3 citation statements)

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“…On the other hand, the findings of this study also indicate that chronic immobilization stress does not have any effect on the levels of TSH, T3 and T4. Aligned with these results, there are other studies that have reported long-time stress does not influence thyroid hormones (13). However, there are other studies that show thyroid hormone levels decrease during chronic immobilization stress (7,30).…”

Section: Discussionsupporting

confidence: 75%

“…There are several studies showing that acute immobilization stress activate pituitary-thyroid system in rhesus monkeys (29). Other studies showed that acute immobilization stress increases the secretion of thyroid hormone (7,13,30) and there are also another study showing that acute immobilization stress does not change serum level of TSH (4). Most of physiological stresses initially influence neurons aminergic and subsequently peptidergic neurons in cerebral cortex.…”

Section: Discussionmentioning

confidence: 99%

“…Any disruption in normal levels of thyroid hormones can cause physiological abnormalities (9). Although thyroid disorders are widespread these days (9), the function of thyroid axis on stress has less been studied (12) and there are not enough studies on the effect of stressful factors on secretion and metabolism of thyroid hormones, and the changes of these factors on the target organ (13). Moreover, research on the effects of plant extracts in the treatment of thyroid disorders is also little (9).…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Acute and Chronic Immobilization Stress and Aloe vera Extract on Serum Levels of TSH, T3 and T4 in Male Rats

2015

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Background: Stress has different effects on the body and endocrine system. Objectives: The main aim of this study is to determine the effects of immobilization stress and Aloe vera extract on levels of TSH, T3 or T4 in male rats. Materials and Methods: In this experimental study, 90 male Wistar rats were randomly divided into 9 groups of control, receiving normal saline, receiving Aloe vera extract, acutely immobilized (8 h/day immobilization for 8 days), chronically immobilized (2 h/day immobilization for 21 days) acutely immobilized receiving Aloe vera extract, chronically immobilized receiving Aloe vera extract, acutely immobilized receiving normal saline and chronically immobilized receiving normal saline (n = 10). Blood samples were collected using cardiac puncture method and hormone levels were measured by electrochemiluminescence (ECL) method. Data were statistically analyzed and compared among groups using ANOVA. Results: Results showed that levels of T3 and T4 were significantly increased in rats enduring acute immobilization stress compared with animals in control group (P = 0.001). Serum T3 and T4 were significantly decreased in Aloe vera receiving rats compared with control group (P < 0.05 or P < 0.01, respectively). Level of T3 was significantly decreased in acutely immobilized rats receiving Aloe vera compared with control group (P = 0.001). Level of T3 and T4 levels were significantly decreased in chronically immobilized rats receiving Aloe vera compared with control group (P < 0.05). Conclusions:The findings show that acute immobilization enhances levels of T3, T4 and TSH and the use of Aloe vera extract can prevent this kind of increase.

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Section: Discussionsupporting

confidence: 75%