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In vitro evaluation of anthelmintic activity of biocompatibile carbon quantum dot nanocomposite against egg and larval stages of equine strongyles.
BMC Vet Res
January 2025
Materials Synthesis Laboratory, Carbon Tech Industrial Group, Carbon Tech, Tehran, Iran.
Background: Strongyle nematodes pose a major challenge in veterinary parasitology, causing significant economic losses in livestock due to resistance to conventional treatments. Current anthelmintics, like Ivermectin, often encounter resistance issues. This study aims to address these gaps by synthesizing Carbon Quantum Dots (CQDs) and Copper-Doped CQDs (Cu@CQDs) using glucose extract, and evaluating their nematicidal properties against strongyles in vitro.
View Article and Find Full Text PDFEnhancing oocyte competence in patients with polycystic ovarian syndrome: A microfluidic study on the effects of follicular fluid meiosis-activating sterol in in vitro oocyte maturation.
J Obstet Gynaecol Res
January 2025
Reproductive Sciences and Technology Research Center, Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Objective: To evaluate the efficacy of a microfluidic culture system supplemented with follicular fluid meiosis-activating sterol (FF-MAS) on the maturation of immature oocytes in patients with polycystic ovarian syndrome (PCOS).
Methods: A total of 438 germinal vesicle oocytes from 163 PCOS patients were included. Oocytes were divided into five groups: (1) cultured in static drops without FF-MAS, (2) cultured in static drops with FF-MAS, (3) cultured in a microfluidic device without FF-MAS, (4) cultured in a microfluidic device with FF-MAS for the first 2 h, and (5) cultured in a microfluidic device with FF-MAS for 24 h.
Oxidative toxicity mediated oophoritis alters ovarian growth in Channa punctatus under prolonged exposure to herbicide, paraquat dichloride.
Sci Rep
January 2025
Environmental Toxicology & Bioremediation Laboratory (ETBL), Department of Zoology, University of Lucknow, Lucknow, 226007, India.
Herbicide paraquat dichloride, a potent redox agent found its way to natural water bodies and influences their health; however, its impact on the reproductive health of fish is potentially less studied and requires clear investigation. This study was conducted to elucidate its effect on the gonadal health of female fish, Channa punctatus over 60 days. The 96-h LC of test herbicide was calculated as 0.
View Article and Find Full Text PDFComparative 3D ultrastructure of Plasmodium falciparum gametocytes.
Nat Commun
January 2025
Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands.
Despite the enormous significance of malaria parasites for global health, some basic features of their ultrastructure remain obscure. Here, we apply high-resolution volumetric electron microscopy to examine and compare the ultrastructure of the transmissible male and female sexual blood stages of Plasmodium falciparum as well as the more intensively studied asexual blood stages revisiting previously described phenomena in 3D. In doing so, we challenge the widely accepted notion of a single mitochondrion by demonstrating the presence of multiple mitochondria in gametocytes.
View Article and Find Full Text PDFAge-associated aberrations of the cumulus-oocyte interaction and in the zona pellucida structure reduce fertility in female mice.
Commun Biol
December 2024
The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, 1088639, Japan.
One of the major age-related declines in female reproductive function is the reduced quantity and quality of oocytes. Here we demonstrate that structural changes in the zona pellucida (ZP) were associated with decreased fertilization rates from 34- to 38-week-old female mice, equivalent to the mid-reproductive of human females. In middle-aged mouse ovaries, the decline in the number of transzonal projections was accompanied by a decrease in cumulus cell-oocyte interactions, resulting in a deterioration of the oocyte quality.
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