The cause of masculinisation of the left ovary and the outgrowth of the vestigial right gonad was investigated in intersexual hens. Tumour-like cell masses, resembling mouse tubular adenomas of the ovary, were observed in the majority of masculinised left gonads. Except for one male and two intersexuals, testosterone concentrations were below detectable levels. For oestrogen, progesterone and the oestrogen : progesterone ratio all differences were significant, except for the difference between the intersex and the male. Histochemically this cell mass showed weak androgen-synthesising activity. These intersexual gonads showed similarities to normal testicular tissue. Karyotyping revealed 3n-autosomes and a ZZW sex chromosome constitution. The early and almost complete absence of cortical follicular structures was most notable and may have been the cause of the sex reversal.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/03079459008418651 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Menstrual cycle effects on thermoregulation while exercising in the heat.
J Therm Biol
January 2025
School of Integrative Physiology and Athletic Training, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA. Electronic address:
Women may be challenged to maintain thermoregulation due to hormonal changes associated with the menstrual cycle. The purpose of this study was to assess the effect of the menstrual cycle phase on core temperature, hydration status, and perceived exertion while exercising under uncompensable heat gain. Eleven eumenorrheic women (24.
View Article and Find Full Text PDFIn Vitro Effect of Estrogen and Progesterone on Cytogenetic Profile of Uterine Leiomyomas.
Int J Mol Sci
December 2024
D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, 199034 St. Petersburg, Russia.
In the present study, we aimed to investigate intratumoral karyotype diversity as well as the estrogen/progesterone effect on the cytogenetic profile of uterine leiomyomas (ULs). A total of 15 UL samples obtained from 15 patients were cultured in the media supplemented with estrogen and/or progesterone and without adding hormones. Conventional cytogenetic analysis of culture samples revealed clonal chromosomal abnormalities in 11 out of 15 ULs.
View Article and Find Full Text PDFLPS Disrupts Endometrial Receptivity by Inhibiting STAT1 Phosphorylation in Sheep.
Int J Mol Sci
December 2024
College of Animal Science and Technology, Northeast Agricultural University, Harbin 150038, China.
Uterine infections reduce ruminant reproductive efficiency. Reproductive dysfunction caused by infusion of Gram-negative bacteria is characterized by the failure of embryo implantation and reduced conception rates. Lipopolysaccharide (LPS), a major component of the outer membrane of Gram-negative bacteria, is highly abortogenic.
View Article and Find Full Text PDFQuantitative expression of estrogen, progesterone and human epidermal growth factor receptor-2 and their correlation with immunohistochemistry in breast cancer at Uganda Cancer Institute.
PLoS One
January 2025
Department of Clinical Support Services, Division of Laboratory and Pathology Medicine, Uganda Cancer Institute, Kampala, Uganda.
Article Synopsis
- This study focused on detecting Estrogen Receptor (ER), Progesterone Receptor (PR), and HER-2 in breast cancer to help categorize the disease and guide treatment choices.
- Researchers compared two preservation methods for breast tissue samples: traditional formalin fixation and RNAlater, utilizing Immunohistochemistry (IHC) and Quantitative Polymerase Chain Reaction (qPCR) for analysis.
- Findings revealed that ER and PR were positive in 60% of samples, while HER-2 was positive in only 25%, with no significant statistical difference between the results from the two preservation methods.
An Unusual Cause of Inguinal Mass in a Patient with Urolithiasis: A Case Report of Deep (Aggressive) Angiomyxoma in a Male Patient.
Clin Pract
December 2024
Department of Urology, University Hospital of Patras, 26504 Patras, Greece.
Deep or aggressive angiomyxoma is an uncommon neoplasm of the pelvis. Although deep angiomyxoma is a benign tumor, its tendency to infiltrate soft tissues and reach a large size (typically > 10 cm) indicates aggressive biological behavior. It is usually present in female patients, but there have been recent reports of male-aggressive angiomyxoma.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!