نتایج جستجو برای: محور hpg
تعداد نتایج: 18794 فیلتر نتایج به سال:
Ethanol is a testicular toxin and it causes fertility abnormalities with low sperm count and impaired sperm motility in men. The present study was designed to investigate plasma testosterone level and hypothalamic pituitary gonadal (HPG) axis function in alcoholic men and also effect of ethanol on systemic oxidative stress. Forty six male alcohol abusers in the age group 20-40 years were select...
The histrelin implant has emerged as a therapeutic option for the treatment of central precocious puberty that has been favorably received by patients and providers. Inserted subcutaneously, the 50-mg implant provides continuous release of the potent gonadotropin-releasing hormone analog (GnRHa) histrelin. Profound suppression of the hypothalamic-pituitary-gonadal (HPG) axis occurs within 1 mon...
مقدمه: دوپامین فعالیت محور هیپوتالاموس- هیپوفیز- گنادها (HPG ) را مهار میکند. مسیر پیامرسانی کیس پپتین /GPR54 سبب افزایش آزادسازی GnRH/LH و تستوسترون میگردد. در این تحقیق اثرات برهمکنش دوپامین و کیسپپتین بر میانگین غلظت سرمی هورمون LH در موشهای صحرایی بررسی شد. روشها: چهل و پنج موش صحرایی نر نژاد ویستار به وزن g250-230 در 9 گروه 5تایی به ترتیب سالین، کیسپپتین (0/1، یا nmol1)، پپتید2...
Abstract Variable precipitation in the western United States impacts forage availability, potentially influencing fertility. Furthermore, producers located above 1,500 meters contend with high altitude disease (HAD) due to reduced atmospheric oxygen, resulting right sided heart failure. Pulmonary arterial pressure (PAP) score is an indicator trait of HAD. The physiological stress elevated PAP c...
Traditional paste filling materials adopt industrial solid wastes such as unclassified tailings and waste rocks aggregates, but the binder used is dominantly commercial cement, which raises cost. Hemihydrate phosphogypsum (HPG) one of main by-products phosphorus chemical industry, high-efficiency utilisation technology HPG has been a problem worldwide. The potential gelling property found in la...
Objetivo. Se evaluó la eficacia antihelmítica de albendazol y levamisol sobre poblaciones Strongyloides sp. en bucerros (Bubalus bubalis) con infecciones naturales el trópico Mexicano. Materiales Métodos. incluyeron 45 bucerros, que fueron distribuidos tres grupos experimentales acuerdo a excreción huevos por gramo heces (HPG) (n=15): a) Grupo control: sin desparasitación, b) BZ (benzimidazoles...
Abstract In this study, a four-enzyme cascade pathway was developed and reconstructed in vivo for the production of d - p -hydroxyphenylglycine (D-HPG), valuable intermediate used to produce ?-lactam antibiotics fine-chemical synthesis, from l -tyrosine. pathway, catalytic conversion 4-hydroxyphenylglyoxalate by meso -diaminopimelate dehydrogenase Corynebacterium glutamicum ( Cg DAPDH) identifi...
Gap junctions are present in many cell types throughout the animal kingdom and allow fast intercellular electrical and chemical communication between neighboring cells. Connexin-36 (Cx36), the major neuronal gap junction protein, synchronizes cellular activity in the brain, but also in other organs. Here we identify a sex-specific role for Cx36 within the hypothalamic-pituitary-gonadal (HPG) ax...
Chronic anxiety, depression or physical exertion-associated stress consistently activates the hypothalamic-pituitary-adrenal (HPA) axis. Each individual component of the HPA axis, such as CRH, ACTH, β-endorphin or glucocorticoid exerts deleterious effect on the hypo-thalamic-pituitary-gonadal (HPG) axis and subsequently leads to reproductive failure. Gonadotropin-releasing hormone (GnRH) secret...
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