OBJECTIVES The aim of the study was to re-evaluate women with secondary amenorrhea one year after the first visit evaluation. STUDY METHODS One hundred and seventy-five women with secondary amenorrhea were evaluated on the first visit. Their ages ranged from 18 to 29. Secondary amenorrhea was defined by the absence of menses for more than 3 months after excluding pregnancy. Women who were att...

An extended and variable period of anovulation and anestrus occurs in suckled beef cows following parturition. This imposes both biological and economic constraints on the efficiency of beef production. A large body of knowledge has linked these phenomena to an attenuation of neuroendocrine signals that subserve gonadal function. During late gestation, high concentrations of placental estrogen ...

Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder and the most common cause of female infertility. However, its etiology and underlying mechanisms remain unclear. Here we report that a transgenic obese mouse (Mito-Ob) developed by overexpressing prohibitin in adipocytes develops polycystic ovaries. Initially, the female Mito-Ob mice were equally fertile to their wild-type litte...

A total of 403 healthy, premenopausal women, residing near Santa Clara, California, were recruited from a large health care plan in California for a study of menstrual function. After a telephone interview, participants collected daily urine samples and recorded bleeding and other information in diaries. Data were collected during 1990-1991. Urine samples were analyzed for creatinine and for es...

Polycystic ovarian syndrome (PCOS) is sometimes called Stein-Leventhal Syndrome after the two doctors who first described it in 1935. 1 It is the most common ovarian disorder with typical features of obesity, anovulation, hyperandrogenism, hirsutism and infertility. The accepted nomenclature for the syndrome is PCOS, despite the fact that polycystic ovaries are non-specific findings and can occ...

BACKGROUND This study evaluated the impact of body mass index (BMI), total calorie intake and physical activity (PA) as energy expenditure related factors on oxidative stress (OS) in follicular fluid (FF). MATERIALS AND METHODS This prospective study conducted on 219 infertile women. We evaluated patients' BMI, total calorie intake and PA in their assisted reproduction treatment cycles. Malon...

BACKGROUND Polycystic ovary syndrome (PCOS) is a common endocrinopathy, associated with metabolic abnormalities. Metabolic features of various phenotypes of this syndrome are still debatable. The aim of present study hence was to evaluate the metabolic and hormonal features of PCOS phenotypes in comparison to a group of healthy control. METHODS A total of 646 reproductive-aged women were rand...

Aim: To compare the efficacy of letrozole and clomiphene citrate in women having anovulatory infertility. Study design: Randomized Controlled Trial. Place duration study: 16th October 2020 to 15th September 2021 Department Obstetrics & Gynecology, Shahida Islam Medical Complex Lodhran. Methods: In our study 112 patients between ages 18 40 years with anovulation were included. Patients H/O p...

PCOS is the most common cause of anovulation in reproductive-aged women with 70% experiencing ovulatory problems. Advanced glycation end products are highly reactive molecules that are formed by non-enzymatic reactions of sugars with proteins, nucleic acids and lipids. AGEs are also present in a variety of diet where substantial increase in AGEs can result due to thermal processing and modifica...

Polycystic ovary syndrome (PCOS) is a hormonal disorder characterised by presence of oligomenorrhoea, anovulation and hyperandrogenism in females. PCOS mainly observed women adolescent age to pre-partum resulting abortions. Symptoms include irregular menstrual cycles, anovulation, acne, hirsutism oligomenorrhea. The pathophysiology involves the primary ovarian abnormalities, endocrine alteratio...