testosterone/atrophy

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Efficacy of vaginally applied estrogen, testosterone, or polyacrylic acid on vaginal atrophy: a randomized controlled trial.

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Vaginal atrophy is a common chronic condition among postmenopausal women that can affect their quality of life. Recent studies have evaluated new treatment alternatives for vaginal atrophy; however, few therapeutic options have been thoroughly evaluated. This study aimed to compare the effectiveness

Plasma FSH, LH and testosterone levels in the male rat during degeneration of the germinal epithelium caused by severe heat treatment or ligation of the vasa efferentia.

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Rats were treated by exposure of the scrotum to a temperature of 43 degrees C for 30 min or bilateral ligation of the vasa efferentia and bled at 0, 3, 7, 14 and 21 days after treatment. In heat-treated rats FSH levels rose linearly from pretreatment levels while those in efferenticectomized animals

Exogenous testosterone prevents motoneuron atrophy induced by contralateral motoneuron depletion.

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Gonadal steroids exhibit neuroprotective and neurotherapeutic effects. The lumbar spinal cord of male rats contains a highly androgen-sensitive population of motoneurons, the spinal nucleus of the bulbocavernosus (SNB), whose morphology and function are dependent on testosterone in adulthood.

Expression of the muscle atrophy factor muscle atrophy F-box is suppressed by testosterone.

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The ubiquitin ligase muscle atrophy F-box (MAFbx; also called atrogin-1) is thought to play important roles in muscle loss. Conversely, testosterone reduces atrophy from glucocorticoids or denervation associated with repression of MAFbx. To characterize mechanisms of such repression, the effects of

Testosterone fails to prevent skeletal muscle atrophy from glucocorticoids.

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This study was undertaken to determine whether testosterone can stimulate muscle growth as well as counteract the muscle wasting caused by excess glucocorticoids. Female rats were divided into four groups: a vehicle (1% carboxymethycellulose)-treated group, a testosterone acetate (Te)-treated group,

Testosterone therapy and the pathogenesis of Kennedy's disease (X-linked bulbospinal muscular atrophy).

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The mutation in X-linked bulbospinal muscular atrophy (XBSMA) is an increased CAG triplet repeat coding for a polyglutamine domain in the gene for the androgen receptor. This might impair the effect of testosterone on motor neurons, leading to their progressive degeneration. We report a trial of

Testosterone manipulation protects motoneurons from dendritic atrophy after contralateral motoneuron depletion.

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Dendritic morphology is reactive to many kinds of injuries, including axotomy and deafferentation. In this study, we examined the response of motoneurons in the spinal nucleus of the bulbocavernosus (SNB), an androgen-dependent population of motoneurons in the lumbar spinal cord of the rat, to

Hormonal, metabolic, and endometrial safety of testosterone vaginal cream versus estrogens for the treatment of vulvovaginal atrophy in postmenopausal women: a randomized, placebo-controlled study.

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OBJECTIVE The aim of the study was to evaluate the laboratory and endometrial safety of topical testosterone versus topical estrogen for the treatment of vaginal atrophy in postmenopausal women. METHODS This was a randomized, placebo-controlled trial of 60 postmenopausal women aged 40 to 70 years at

Effects of testosterone, pregnenolone, progesterone and cortisol on pituitary and testicular function in male golden hamsters with gonadal atrophy induced by short photoperiods.

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Testicular regression was induced in adult golden hamsters by exposure to a short photoperiod (5 h light:19 h darkness). The response of these animals to exogenous steroids (ten injections each of 5 mg testosterone, testosterone propionate, pregnenolone, progesterone or cortisol administered s.c.

Ex Vivo Evaluation of Intravaginal Progesterone and Testosterone to Treat the Luteal-phase Deficiency and Vaginal Atrophy.

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The purpose of this study was to evaluate the transmucosal permeation of progesterone and testosterone using Pentravan as its vehicle for vaginal delivery. Progesterone deficiency is a hormone imbalance that could lead to luteal-phase deficiency, which is a common problem in assisted reproductive

Testosterone treatment fails to accelerate disease in a transgenic mouse model of spinal and bulbar muscular atrophy.

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Evidence from multiple animal models demonstrates that testosterone plays a crucial role in the progression of symptoms in spinal and bulbar muscular atrophy (SBMA), a condition that results in neurodegeneration and muscle atrophy in affected men. Mice bearing a transgene encoding a human androgen

Exogenous testosterone reverses age-related atrophy in a spinal neuromuscular system.

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Aging is associated with a variety of pathologies, including motor dysfunctions and reductions in sexual behavior. In male rats, declines in sexual behavior during the aging process may be caused in part by the loss of the lumbar spinal cord motoneurons that innervate the penile musculature.

Melatonin is as effective as testosterone in the prevention of soleus muscle atrophy induced by castration in rats.

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The purpose of this experiment was to compare the weight, insulin-like growth factor-I (IGF-I) expression, and ultrastructure of the soleus muscle in growing castrated rats treated with testosterone or melatonin. In this study, adult male Wistar albino rats were used. The groups were arranged as

Reversal by testosterone of atrophy of accessory genital glands of castrated male sheep. A histologic and morphometric study.

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The histologic features of male accessory genital glands of entire sheep (group I), castrated sheep (group II), castrated sheep treated with 40 daily intramuscular injections of 50 milligrams testosterone propionate (group III), and castrated sheep treated with 600 milligrams testosterone propionate

An open trial of long-term testosterone suppression in spinal and bulbar muscular atrophy.

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BACKGROUND We investigated the long-term effects of leuprorelin on leg-muscle strength in spinal and bulbar muscular atrophy (SBMA). We hypothesized that testosterone suppression by leuprorelin would prevent the progression of muscle weakness. METHODS In a prospective, long duration, open trial, 16

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