Gen Comp Endocrinol
January 2025
Cytochrome P450 17A1 (CYP17A1) catalyzes two enzymatic reactions in the biosynthesis of dehydroepiandrosterone (DHEA) from pregnenolone. In pregnant humans, the adrenal gland is responsible for DHEA biosynthesis, which is then sulfated by SULT2A1 and released into the bloodstream. This sulfated DHEA is subsequently taken up by the placenta and deconjugated to serve as a precursor for estrogen biosynthesis.
View Article and Find Full Text PDFUnlabelled: Bacteriophages offer an opportunity for chemical-free, precise control of problematic bacteria, but this approach can be limited when lytic phages are difficult to obtain for the target host. In such cases, phage-based targeting of cooperating or cross-feeding bacteria (e.g.
View Article and Find Full Text PDFSteroidogenesis occurs locally in peripheral tissues and via adrenal and gonadal glands' biosynthesis. The C2C12 mouse myoblast cell line and rat skeletal muscles harbor a local steroidogenesis pathway for glucocorticoids, and corticosterone is biosynthesized from skeletal muscle cells. However, Cyp11a1 and StAR protein expressions are not observed in C2C12 cells or rat muscular tissues.
View Article and Find Full Text PDFPhage therapy has re-emerged in modern medicine as a robust antimicrobial strategy in response to the increasing prevalence of antimicrobial-resistant bacteria. However, bacterial resistance to phages can also arise via a variety of molecular mechanisms. In fact, several clinical studies on phage therapy have reported the occurrence of phage-resistant variants, representing a significant concern for the successful development of phage-based therapies.
View Article and Find Full Text PDFMycoplasma bovis mastitisis highly contagious and disrupts lactation, posing a significant threat to the dairy industry. While the mammary gland's defence mechanism involves epithelial cells and mononuclear cells (MNC), their interaction with M. bovis remains incompletely understood.
View Article and Find Full Text PDFBacteriophages are expected to be therapeutic agents against infectious diseases. are involved in dental plaque formation related to dental caries and periodontitis. In , lytic bacteriophages have been isolated previously, but the isolation of temperate bacteriophage has not been reported although their presence in the genome has been confirmed.
View Article and Find Full Text PDFPhage therapy has been overshadowed by antibiotics for decades. However, it is being revisited as a powerful approach against antimicrobial-resistant bacteria. As bacterial microbiota have been mechanistically linked to gastrointestinal and liver diseases, precise editing of the gut microbiota via the selective bactericidal action of phages has prompted renewed interest in phage therapy.
View Article and Find Full Text PDFIn recent decades, phage therapy has been overshadowed by the widespread use of antibiotics in Western countries. However, it has been revitalized as a powerful approach due to the increasing prevalence of antimicrobial-resistant bacteria. Although bacterial resistance to phages has been reported in clinical cases, recent studies on the fitness trade-offs between phage and antibiotic resistance have revealed new avenues in the field of phage therapy.
View Article and Find Full Text PDFFasting induces metabolic changes in muscles, which are differentiated by muscle fiber type. In this study, the mechanism of fasting-induced muscle atrophy in rats was examined to determine the differences between muscle fiber types in energy production. Fasting for 96 h did not alter the weight of the soleus (SOL), a fiber type I muscle, but did significantly reduce the weight of gastrocnemius (GM), a fiber type II muscle.
View Article and Find Full Text PDFNihon Shokakibyo Gakkai Zasshi
February 2023
A 75-year-old male patient underwent endoscopic submucosal dissection (ESD) for early gastric cancer. The ESD ulcer bleeding occurred 7 days post-ESD, and he underwent endoscopic clipping hemostasis. Afterward, the patient presented with acute cholecystitis and cholangitis, thereby developing sclerosing cholangitis.
View Article and Find Full Text PDFStaphylococcus virus ΦSA012 has a wide host range and efficient lytic activity. Here, we assessed the biological stability of ΦSA012 against temperature, freeze-thawing, and pH to clinically apply the phage. In addition, inoculation of ΦSA012 through i.
View Article and Find Full Text PDFMicrobiol Resour Announc
April 2022
Bovine pneumonia is a disease that causes significant economic losses in livestock industries and is vital for animal welfare. The whole-genome sequence of Pasteurella multocida strain Pm1, isolated from a calf suffering from pneumonia in Japan, is reported here.
View Article and Find Full Text PDFAlthough Escherichia coli is a commensal bacterium of the bovine vaginal microbiota, it is an important pathogenic bacterium that causes diseases of the reproductive tract and sub-fertility. Recent studies have focused on virulence factors (VFs) of intrauterine E. coli; however, actual endometrial VFs have not been clearly identified.
View Article and Find Full Text PDFBisphenol A (BPA) has been shown to exhibit various toxic effects, including the induction of reproductive disorders. Generally, BPA is converted to conjugated metabolites, leading to bio-inactivation. On the other hand, the toxicity of conjugated metabolites is not fully understood.
View Article and Find Full Text PDFTesticular steroidogenesis is depressed by adrenal-secreted corticosterone (CORT) under stress. However, the mechanisms are not well understood. This study investigated the details of testicular steroidogenesis depression during fasting.
View Article and Find Full Text PDFBacteriophages are viruses that specifically infect bacteria and are classified as either virulent phages or temperate phages. Despite virulent phages being promising antimicrobial agents due to their bactericidal effects, the implementation of phage therapy depends on the availability of virulent phages against target bacteria. Notably, virulent phages of , which resides in the oral cavity and is an opportunistic pathogen that can cause periodontitis and endocarditis have previously never been found.
View Article and Find Full Text PDFPseudomonas aeruginosa, which causes chronic infections, has demonstrated rapid acquisition of antimicrobial resistance (AMR). Therefore, bacteriophages have received significant attention as promising antimicrobial agents; however, previous trials have reported the occurrence of phage-resistant variants. P.
View Article and Find Full Text PDFMicrobiol Resour Announc
July 2021
Pseudomonas aeruginosa causes various opportunistic infections in animals. Here, we report the complete genome sequence of P. aeruginosa strain Pa12, a fluoroquinolone-resistant isolate from a canine skin lesion.
View Article and Find Full Text PDFMycoplasma bovis (M. bovis) is a significant worldwide pathogen of cattle. Neutrophils have an important role in the innate immune response during infection with M.
View Article and Find Full Text PDFMycoplasma bovis causes chronic arthritis in cattle, accompanied by a severe inflammatory reaction of the joints. Recent studies demonstrated that M. bovis can invade bovine non-phagocytic cells, but the mechanism of M.
View Article and Find Full Text PDFVet Immunol Immunopathol
February 2021
Mycoplasma bovis is a pathogenic bacterium in bovines that causes huge global economic losses. Numerous factors play important roles in M. bovis pathogenesis; however, the host immune response involved in M.
View Article and Find Full Text PDFWe report the complete genome sequence of strain HUE1, isolated from the urinary catheter of a female patient, showing fluoroquinolone resistance without quinolone resistance-determining region mutations. To facilitate the exploration of the molecular characteristics of HUE1, the whole genome was sequenced using long- and short-read platforms.
View Article and Find Full Text PDFIn recent years, antimicrobial-resistant Pseudomonas aeruginosa strains have increased in the veterinary field. Therefore, phage therapy has received significant attention as an approach for overcoming antimicrobial resistance. In this context, we isolated and characterized four Pseudomonas bacteriophages.
View Article and Find Full Text PDFThe spread of antibiotic-resistant bacteria (ARB) in human and veterinary medicine is of global concern. Notably, the emergence of methicillin-resistant has become a serious problem. In this context, bacteriophages and their lytic enzymes, endolysins, have received considerable attention as therapeutics for infectious diseases in place of antibiotics.
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