Objectives The role of isoflavones in pulmonary structure and function during menopause is not well studied. Moreover, the important role of estrogen in the physiological function of respiratory system has been revealed. Genistein, as an isoflavone, mimics estrogenic in diabetic and ovariectomized rats. Here, we hypothesized that genistein would reverse changes in the protein expression levels ...

The effect of long-term treatment with the bisphosphonate zoledronate on vertebral bone architecture was investigated in estrogen-deficient mature rats. 4-month-old rats were ovariectomized and development of cancellous osteopenia was assessed after 1 year. The change of bone architectural parameters was determined with a microtomographic instrument of high resolution. After 1 year of estrogen-...

In the age of broad medical options, women’s health has received sufficient attention. The different periods a woman’s life are characterised by specific physiological changes, based on age-related characteristics reproductive system. onset menopause can have negative impact in varying degrees. Clinicians clear understanding effects estrogen deficiency and therapeutic options for managing it wi...

This study aimed at elucidating whether estrogen deficiency would affect the synthesis of an osteocyte-derived factor, sclerostin, in the mesial region of alveolar bone. Eight 9-week-old Wistar female rats were ovariectomized (OVX) and eight other rats were Sham-operated (Sham). After 4 weeks, the interradicular septa of mandibular first molar were embedded in paraffin and then histochemically ...

Hormone replacement therapy (HRT) is necessary in adolescents with primary ovarian insufficiency (POI) in order to avoid estrogen deficiency. The goal of this minirewiew is to present the different types of estrogens (17β-estradiol, estradiol valerate, ethinyl estradiol, and combined equine estrogens) as well as the different types of progestins available. In order to choose among the different...

Patients with osteopenia or osteoporosis are at even greater risk when multiple risk factors confound low BMD scores.8,9 Potentially modifiable risk factors include current cigarette smoking,4 alcoholism, and inadequate physical activity.4,7,8 Causes of estrogen deficiency, such as menopause before 45 years of age and premenopausal amenorrhea for more than one year, increase osteoporosis risk a...

Recent studies suggest that some aspects of learning and memory may be altered by a midlife loss of estrogen, indicating a potential causal relationship between the deficiency of ovarian hormones and cognitive aging. In this study, the effects of estrogen withdrawal and replacement were tested in middle-aged Fischer-344 rats using different memory tasks. Estrogen withdrawal accelerated the rate...

Ovariectomy/estrogen deficiency causes selective apoptosis of the serous epithelial cells of the submandibular glands (SMG) in female mice. Because such apoptosis does not occur in healthy, estrogen-deficient male mice, it was hypothesized that dihydrotestosterone (DHT) protects epithelial SMG cells against apoptosis. The antiapoptotic effect of DHT on human epithelial HSG cells exposed to tumo...

Osteoporosis is a condition causing significant morbidity and mortality in the elderly population worldwide. Age-related testosterone deficiency is the most important factor of bone loss in elderly men. Androgen can influence bone health by binding to androgen receptors directly or to estrogen receptors (ERs) indirectly via aromatization to estrogen. This review summarized the direct and indire...

Osteoporosis is an age-related disorder of bone remodeling in which bone resorption outstrips bone matrix deposition. Although anticatabolic agents are frequently used as first-line therapies for osteoporosis, alternative anabolic strategies that can enhance anabolic, osteogenic potential are actively sought. Sex steroid hormones, particularly estrogens, are bidirectional regulators for bone ho...