The karyotype and reproductive features of Gavrilov-Zimin, 2017 (Pseudococcidae) were studied for the first time. Diploid chromosome number is 18 in females. Reproduction is probably bisexual, as indicated by the presence of characteristic Lecanoid heterochromatinization of the paternal set of chromosomes in embryonic cells of about 50% of the embryos studied. The female reproductive system has a pair of lateral oviducts merged into enlarged common oviduct; the spermatheca and accessory glands are connected to the common oviduct in its proximal part. Complete ovoviviparity occurs in ontogenesis.
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http://dx.doi.org/10.3897/compcytogen.17.116550 | DOI Listing |
Toxicol Pathol
January 2025
Charles River Laboratories Edinburgh Ltd, Elphinstone Research Centre, Tranent, UK.
A retrospective study was performed to determine the incidences of spontaneous findings in control laboratory New Zealand White (NZW) and Dutch Belted (DB) rabbits. Terminal body and organ weights data were also collected. A total of 2170 NZW (526 males/1644 females), 100 DB rabbits (50 animals per sex), aged 4- to 7-month-old were obtained from 158 non-clinical studies evaluated between 2013 and 2022.
View Article and Find Full Text PDFTher Adv Reprod Health
December 2024
Department of Obstetrics and Gynecology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
Background: Chronic endometritis (CE), frequently asymptomatic, is associated with female infertility. Fallopian tube obstruction (FTO) is also one of the factors contributing to female infertility. More than 90% of cases of proximal FTO can be successfully treated after fallopian tubal recanalization (FTR) and the spontaneous pregnancy rate of treated women after FTR is only about 30%.
View Article and Find Full Text PDFDiagnostics (Basel)
November 2024
Endocrinology Department, Elias Emergency University Hospital, 011461 Bucharest, Romania.
: Persistent Müllerian duct syndrome (PMDS) is a rare disorder of sex development (DSD) caused by mutations in the genes coding anti-Müllerian hormone (AMH) or the AMH receptor, characterized by the persistence of Müllerian derivatives, the uterus and/or fallopian tubes, in otherwise normally virilized boys. Testicular regression syndrome is common in PMDS, yet the association with supernumerary testis has been reported in only two patients where genetic testing was not performed. : Thus, we report an individual with this particular association caused by a previously unreported homozygous variant in the gene to enable future genotype-phenotype correlations in this rare disorder.
View Article and Find Full Text PDFJ Ultrasound Med
December 2024
Department of Molecular and Developmental Medicine, Obstetrics and Gynaecology, University of Siena, Siena, Italy.
Fallopian tubes are not usually visible on a transvaginal pelvic scan unless pelvic fluid or pathological processes are present. Depending on the underlying pathological process, they may exhibit different wall thicknesses, grades of vascularization, and variable echogenicity. Recognizing the affected tube and assessing the possible underlying process is of primary importance in clinical practice, as pathological tubes may represent benign pathologies, oncological state, or life-threatening conditions requiring different treatment to preserve fertility.
View Article and Find Full Text PDFPoult Sci
January 2025
National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, PR China. Electronic address:
Eggshell translucency is the common problem on eggshell that become more severe with age. They are important because it influence consumer preferences and the economic value of eggs. The reason for the eggshell translucency is currently believed to be the eggshell membrane (ESM).
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