Association of thyroid disorders with the hormones of anterior pituitary in female infertiltiy
Keywords:
infertility, females, hypothyroidism, prolactin, LH, FSHAbstract
Background: Fertility in femalesis centred on the functionalhypothalamo-pituitary-ovarian (HPO) axis. Thyroid dysfunctions are also known to interfere with the physiology of reproduction and pregnancy. This study was conducted with an objective to evaluate the relationship between thyroid and pituitary hormones in female infertility because abnormalities of HPO axis and thyroid dysfunction are one of the common and often treatable causes of infertility in females.
Methods: Hundred female patients of infertility who visited the Department of Biochemistry, SGT Medical College, Hospital and Research Institute, Gurgaon for hormonal evaluation were recruited for the study. After excluding other causes of infertility including tubal factors, genetic or other anatomical factors; blood samples for TSH, LH, FSH and Prolactin were collected. Hundredage matched healthy fertile females were recruited as controls and their blood samples were collected for similar hormone assay. These parameters were estimated by the ELISA technique. Results were statistically analysed.
Result: Out of the patients in our study group, 78% had primary infertility while secondary infertility was seen in 22% of the patients. Majority of the patients came out to be euthyroid (79%). There was a significant (p value<0.05) high serum level of Prolactin in patients of infertility as compared to controls. LH and FSH were found to be lower in infertile patients as compared to healthy controls. Moreover there was a significant positive correlation between the levels of TSH and Prolactin in infertile patients thus it might be imperative to say that hypothyroidism was strongly associated with hyperprolactinemia.
Conclusion: For the normal physiology of reproduction, the functions of pituitary as well as thyroid should be normal. From our study we have elucidated that abnormalities of the thyroid gland and pituitary gland are interrelated. Thus their evaluation becomes necessary in order to elucidate the etiopathogenesis of female infertility which will further enhance the dimension towards designing effective treatment protocols.
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Copyright (c) 2016 Rakhee Yadav, Sanjiv Kumar Bansal, Busi Karunanand, Eram Hussain Pasha, Birendra Kumar Yadav, Smita Prasad Shastry
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