Young sexually naive (3-4 months) and sexually experienced (2-3 years) male rabbits were subjected to various sexual stimulation procedures. Blood samples were taken just before and 30 min after mounting (unreceptive females) or coitus (receptive females). Testosterone and luteinizing hormone were assayed using specific radioimmunoassays. Sexual stimulation did not affect postcoital testosterone and LH levels in naive and experienced males while in females LH levels were significantly increased. We may conclude that the postcoital neuroendocrine reflex which causes a massive release of pituitary LH in female rabbit does not exist in males.
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http://dx.doi.org/10.3109/13813458309106480 | DOI Listing |
Ginekol Pol
January 2025
Department of Clinical Dietetics, Faculty of Health Sciences, Medical University of Warsaw, Poland, Poland.
Anti-Müllerian hormone (AMH), also known as Müller duct inhibitory factor and primarily known for its role in sexual differentiation. In female fetuses, AMH production by granulosa cells begins around the 36th week of gestation and continues in women until menopause. It is becoming more significant in the endocrine and gynecological diagnosis of adult women.
View Article and Find Full Text PDFArch Endocrinol Metab
January 2025
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo Laboratório de Hormônios e Genética Molecular LIM/42 Divisão de Endocrinologia São PauloSP Brasil Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Laboratório de Hormônios e Genética Molecular LIM/42 - Divisão de Endocrinologia, São Paulo, SP, Brasil.
Objective: The aim of this study was to characterize the parameters of reproductive anatomy and pituitary hormone expression levels in ames dwarf mice ).
Materials And Methods: Male mice aged 30 days received daily intraperitoneal injections of recombinant human GH and levothyroxine three times weekly for 60 days. The sexual maturation of these animals was compared with that of their wild-type ( ) and untreated ( ) siblings.
BMC Biol
January 2025
Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Modern Recreational Fisheries Engineering Technology Center, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
Background: Silver arowana (Osteoglossum bicirrhosum) is a basal fish species with sexual monomorphism, while its sex determination mechanism has been poorly understood, posing a significant challenge to its captive breeding efforts.
Results: We constructed two high-quality chromosome-level genome assemblies for both female and male silver arowana, with scaffold N50 values over 10 Mb. Combining re-sequencing data of 109 individuals, we identified a female-specific region, which was localized in a non-coding region, i.
Curr Pharm Des
January 2025
University Institute of Pharma Sciences (UIPS), Chandigarh University, NH-95 Chandigarh Ludhiana Highway, Mohali Punjab, India.
Schizophrenia is a heterogeneous neuropsychological disorder characterized by three distinct sets of symptoms: positive, negative, and cognitive. It carries significant public health implications and is estimated to affect up to 1% of the population. Despite extensive research, the underlying mechanisms of schizophrenia are not entirely understood, and existing antipsychotic treatments have notable limitations.
View Article and Find Full Text PDFAnim Reprod
January 2025
Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
This study aimed to develop a non-surgical method to neutralize reproduction in female dogs. Female Beagle puppies, aged 6 days, were treated with pellets designed to release estradiol benzoate (EB; 1.0 mg) and progesterone (P4; 5.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!