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The management of neonatal testicular torsion lacks consensus. Arguments in favor of emergency bilateral exploration and fixation include a salvage rate and the incidence of bilateral torsion. We performed a retrospective single-center analysis of all cases of neonatal torsion in our unit between 2012 and 2022 to assess whether our data supports this approach and to publish further data on a disease on which there remains a paucity.

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: 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.

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Objectives: To evaluate the predictivity of haematologic parameters and HALP score on testicular viability in adults with testicular torsion.

Methods: We retrospectively analyzed the clinical data of 139 men ≥18 years of age who underwent testicular detorsion with fixation (n = 90) or orchiectomy (n = 49) due to testicular torsion in five different tertiary centers between May 2019 and August 2023. Demographic, pre-, peri- and postoperative data were analyzed.

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Objectives: Testicular germ cell tumors are susceptible to tumor displacement artifact (TDA), which produces pseudo-lymphovascular invasion (LVI) and confounds the identification of true LVI. Our study aimed to evaluate tumor displacement artifact and pseudo-LVI in testicular germ cell tumors and determine if prolonged fixation improves histological quality.

Methods: A retrospective search identified 121 orchiectomies with slides that were reviewed to assess TDA and pseudo-LVI.

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Identification of candidate genes related to hybrid sterility by genomic structural variation and transcriptome analyses in cattle-yak.

J Dairy Sci

January 2025

Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai 810001, China; University of Chinese Academy of Sciences, Beijing 100049, China; Qinghai Key Laboratory of Animal Ecological Genomics, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai 810001, China. Electronic address:

Hybrids between closely related but genetically incompatible species are often inviable or sterile. Cattle-yak, an interspecific hybrid of yak and cattle, exhibits male-specific sterility, which limits the fixation of its desired traits and prevents genetic improvement in yak through crossbreeding. Transcriptome profiles of testicular tissues have been generated in cattle, yak, and cattle-yak; however, the genetic variations underlying differential gene expression associated with hybrid sterility have yet to be elucidated.

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