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Koala MHCII association with chlamydia infertility remains equivocal: a need for new research approaches.
Sci Rep
December 2024
Sydney School of Veterinary Science, University of Sydney, Camperdown, NSW, 2006, Australia.
Chlamydiosis is a common infectious disease impacting koalas and is a major cause of population decline due to resulting mortality and infertility. Polymorphisms of major histocompatibility complex (MHC) genes influence chlamydial disease outcomes in several species but koala studies have produced variable results. We aimed to identify the MHC II DAB and DBB repertoire of koalas from Liverpool Plains, NSW, a population heavily impacted by chlamydiosis.
View Article and Find Full Text PDFIntratesticular creatine maintains spermatogenesis by defining tight junctions.
Sci Rep
December 2024
Department of Urology, Osaka University Graduate School of Medicine, Suita, 565-0871, Osaka, Japan.
One in five couples who wish to conceive is infertile, and half of these couples have male infertility. However, the causes of male infertility are still largely unknown. Creatine is stored in the body as an energy buffer, and the testes are its second-largest reservoir after muscles.
View Article and Find Full Text PDFPrenatal Exposure to Dibutyl Phthalate and Its Negative Health Effects on Offspring: In Vivo and Epidemiological Studies.
J Xenobiot
December 2024
Faculty of Sciences (FC-UBI), University of Beira Interior, 6201-001 Covilhã, Portugal.
Dibutyl phthalate (DBP) is a low-molecular-weight phthalate commonly found in personal care products, such as perfumes, aftershaves, and nail care items, as well as in children's toys, pharmaceuticals, and food products. It is used to improve flexibility, make polymer products soft and malleable, and as solvents and stabilizers in personal care products. Pregnancy represents a critical period during which both the mother and the developing embryo can be significantly impacted by exposure to endocrine disruptors.
View Article and Find Full Text PDFThe Loss of Tafazzin Transacetylase Activity Is Sufficient to Drive Testicular Infertility.
J Dev Biol
November 2024
Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Barth syndrome (BTHS) is a rare, infantile-onset, X-linked mitochondriopathy exhibiting a variable presentation of failure to thrive, growth insufficiency, skeletal myopathy, neutropenia, and heart anomalies due to mitochondrial dysfunction secondary to inherited TAFAZZIN transacetylase mutations. Although not reported in BTHS patients, male infertility is observed in several () mouse alleles and in a mutant. Herein, we examined the male infertility phenotype in a BTHS-patient-derived point-mutant knockin mouse () allele that expresses a mutant protein lacking transacetylase activity.
View Article and Find Full Text PDFToward the Development of the Trojan Female Technique in Pest Insects: Male-Specific Influence of Mitochondrial Haplotype on Reproductive Output in the Seed Beetle .
Evol Appl
December 2024
Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia University of Belgrade Belgrade Serbia.
Biocontrol techniques that impair reproductive capacity of insect pests provide opportunities to control the dynamics of their populations while minimizing collateral damage to non-target species and the environment. The Trojan Female Technique, or TFT, is a method of the trans-generational fertility-based population control through the release of females that carry mitochondrial DNA mutations that negatively affect male, but not female, reproductive output. TFT is based on the evolutionary hypothesis that, due to maternal inheritance of mitochondria, mutations which are beneficial or neutral in females but harmful in males can accumulate in the mitochondrial genome without selection acting against them.
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