amenorrhea/phosphatase

BACKGROUND Chronic renal failure in women is frequently associated with endocrine disturbances leading to menstrual disorders. However, most studies on renal osteodystrophy have not taken into account the possible role of these hormonal disturbances on the pathogenesis of bone alterations seen in

Our aim has been to evaluate the influence of menstrual disturbances of the secondary amenorrhoea type on the metabolism of bone tissue. We pursued this goal by determining selected biochemical markers of bone metabolism. Alkaline phosphatase and osteocalcin were used as indices of bone remodelling.

Reduced bone mineral density (BMD) in Functional Hypothalamic Amenorrhea (FHA) is mainly related to hypoestrogenism, but other hormonal derangement (reduced conversion of T4-T3 and GH resistance) can play a role. These hormones are involved in antioxidant systems regulation. We evaluated the impact

Hypothalamic amenorrhea in anorexia nervosa often precedes weight loss and may persist after re-feeding and restoration of a stable normal weight. OBJECTIVE To assess the rate of persistent amenorrhea in anorexia nervosa (AN) after re-feeding and the relations of this condition with body composition

This multicenter, double-blind, placebo-controlled, randomized study of 45 patients evaluated the short-term effects of an oral contraceptive [Ortho Tri-Cyclen, 180-250 micro g of norgestimate (NGM) and 35 microg of ethinyl estradiol (EE)] on biochemical markers of bone resorption, formation, and

The purpose of the study was to investigate the prevalence of exercise-related menstrual and sex hormonal disturbances and the effect of exercise on bone mass and metabolism in female runners at various training levels. Two hundred and five premenopausal women (running 0-140 km a week) were

OBJECTIVE To study the characteristics of low bone mass in amenorrhea patients with elevated follicular stimulating hormone (FSH). METHODS Amenorrhea patients with elevated FSH: Primary amenorrhea 18 cases, secondary amenorrhea 171 cases and age matched controls with normal menstruation, 180 cases.

The aim of this study was to evaluate the effects of 4-year estroprogestagen therapy (EP) on the bone mineral density (BMD) of 16- to 17-year-old girls with functional hypothalamic amenorrhea (FHA, n = 78). Baseline values of hormonal parameters, bone fraction of alkaline phosphatase (BALP), and

BACKGROUND The aim of this study was the long-term prospective evaluation of the effects of estroprogestagen (EP) therapy on the bone mineral density (BMD) of girls with functional hypothalamic amenorrhea (FHA) carrying various PvuII and XbaI polymorphisms of ER-α. METHODS Prospective observation

OBJECTIVE To observe the characteristics of low bone mass in amenorrhea with elevated follicle stimulating hormone(FSH). METHODS Amenorrhea patients with elevated FSH: primary amenorrhea (PA) 18 cases, secondary amenorrhea (SA), 171 cases and age matched control with normal menstruation (Nor) 180

OBJECTIVE The effects of long-term triphasic oral contraceptive administration on bone mineral density (BMD) were investigated in premenopausal women with hypothalamic amenorrhea (HA) and osteopenia. METHODS After completing three 28-day cycles in the double-blind phase of a placebo-controlled

Changes in bone turnover, and consequent bone loss and recovery during lactation and the postweaning period, are likely modulated by varying estrogen levels inherent in these time periods. To address this question we measured serum biochemical markers of bone formation (bone-specific alkaline

BACKGROUND Disruptions in hypothalamic-gonadal and other endocrine axes due to energy deficits are associated with low levels of the adipocyte-secreted hormone leptin and may result in hypothalamic amenorrhea. We hypothesized that exogenous recombinant leptin replacement would improve reproductive

A 28-year-old woman developed osteoporosis following seven years of neuroleptic use. She presented with amenorrhea and profuse galactorrhea of four years' duration. Dual photon absorptionometry demonstrated reduced bone mineral density in the femur and spine. Serum calcium, phosphorus and alkaline

Chondrocyte proliferation and differentiation is a fundamental process during hard palatogenesis. Excessive retinoic acid (RA), the biologically most active metabolite of vitamin A, has been reported to adversely affect chondrogenesis. The aim of this study was to investigate the mechanisms