Journal of Reproduction & Infertility

Journal of Reproduction & Infertility

Correlation of Prolactin and Thyroid Hormone Concentration with Menstrual Patterns in Infertile Women

Authors
Binita Goswami 1
Suprava Patel 2
Mainak Chatterjee 3
B.C Koner 2
Alpana Saxena 2
1 Department of Biochemistry, G. B. Pant Hospital, New Delhi, India
2 Department of Biochemistry, Maulana Azad Medical College, New Delhi, India
3 Department of Community Medicine, Institute of Medical Science, Bhubhaneswar, Orrisa, India
Abstract
Introduction: The increased prevalence of upper normal limit of TSH and raised anti-thyroperoxidase antibody titer indicate, relatively more frequent occurrence of compensated thyroid function in infertile women. This finding necessitates considering such cases for a thorough investigation of pituitary-thyroid axis. In addition, as some patients may exhibit the clinical picture of hypothyroidism despite normal TSH and free thyroxin (FT4) concentrations, this hospital-based study was undertaken to review the impact of thyroid status on the menstrual function and fertility of the subjects.Materials and Methods: In this study, we investigated 160 women with primary infertility who attended the Biochemistry department, Maulana Azad Medical College (MAMC), New Delhi for hormonal evaluations. Eighty fertile women with similar age and socioeconomic status were enrolled as the controls. The association between thyroid dysfunction and levels of serum prolactin, LH and FSH as their menstrual status were reviewed.Results: The majority of the infertile and fertile women were euthyroid. In infertile group, the crude prevalence of hypothyroidism was slightly higher in the infertile group in comparison with that of the general population. There was a positive correlation between serum TSH and prolactin levels in the infertile subjects. Menstrual disorders (mainly oligomenorrhea), were reported by about 60% of the infertile women. Hyperprolactinemia was depicted in 41% of the infertile women while it was only 15% in the control group. The infertile women with hypothyroidism had significantly higher prolactin levels when compared to the subjects with hyper- or euthyroidism. There was a significant association between abnormal menstrual patterns and anovulatory cycles, as observed on endometrial examination of infertile subjects with raised serum prolactin levels.Conclusions: There is a greater propensity for thyroid disorder in infertile women than the fertile ones. There is also a higher prevalence of hyperprolactinemia in infertile patients.
Keywords
Anovulatory cycles
Hyperprolactinemia
Infertility
Menstrual disturbances
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Journal of Reproduction & Infertility
Volume 10, Issue 3
Autumn 2009
Pages 207-212