Background: Physiologically, the spermatozoa are exposed to reactive oxygen species (ROS), and those ROS can strongly affect sperm's function through sperm capacitation. However, producing a high level of ROS reduces the sperm anti-oxidation system that may cause infertility, especially in cases with normal sperm count.
Purpose: To investigate the expression of the CYP24A1 gene in human spermatozoa and other oxidation-related biomarkers, including vitamin E, ROS, and catalase as added tools to predict male infertility.
Method: The study included 50 infertile men and 50 young volunteers from the general Iraqi population. Blood samples were drawn from all included men, and semen samples were collected by masturbation. All the samples of semen were investigated for CYP24A1 expression, and routine semen analysis was performed. In addition, the serum was separated and used to assess other biochemical parameters, namely catalase, reactive oxygen species, and vitamin E, which were measured by ELISA.
Results: Serum ROS levels were higher in patients than control groups, while the serum catalase and vitamin E levels were significantly lower in patients than controls. CYP24A1 gene expression is significantly higher in infertile men with sperm count higher than 70 million and reaches twofold times the control.
Conclusion: CYP24A1 gene expression is significantly higher in infertile men and can be used as a marker of infertility, especially in infertile males with normal sperm count. At the same time, the serum catalase and vitamin E levels were significantly lower, which can be added as tools to predict male infertility..
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http://dx.doi.org/10.1007/s13224-021-01608-5 | DOI Listing |
Cancer Epidemiol
January 2025
Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
Background: The relationship between vitamin D and prostate cancer has primarily been characterized among White men. Black men, however, have higher prostate cancer incidence and mortality rates, chronically low circulating vitamin D levels, and ancestry-specific genetic variants in vitamin D-related genes. Here, we examine critical genes in the vitamin D pathway and prostate cancer risk in Black men.
View Article and Find Full Text PDFBurns Trauma
January 2025
Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45267, USA.
Background: Keloids are disfiguring, fibrotic scar-like lesions that are challenging to treat and commonly recur after therapy. A deeper understanding of the mechanisms driving keloid formation is necessary for the development of more effective therapies. Reduced vitamin D receptor (VDR) expression has been observed in keloids, implicating vitamin D signaling in keloid pathology.
View Article and Find Full Text PDFAnimals (Basel)
December 2024
Department of Poultry Science, Mississippi State University, MS 39762, USA.
Effects of and dietary sources of calcidiol (25(OH)D), combined with Marek's disease vaccine (MDV), on the expression of genes involved with the antioxidant activity, muscle deposition, and immunity in the pectoralis major (P. major) muscle and spleen of 40 d of age (doa) broilers were investigated. The treatments were as follows: (1) non-injected; (2) the injection of 50 μL of commercial MDV, (3) MDV + 1.
View Article and Find Full Text PDFCancer Sci
January 2025
Department of Nutrition and Food Hygiene, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China.
The active vitamin D-degrading enzyme (CYP24A1) is commonly overexpressed in various types of cancer, which is associated with poor prognosis in cancer patients. Recent studies highlight the antagonism of CYP24A1 toward the anticancer role of active vitamin D. However, the impact of CYP24A1 on tumorigenesis and its underlying mechanisms largely remains unexplored.
View Article and Find Full Text PDFFront Immunol
December 2024
State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China.
Background: To determine the role of N-methyladenosine (mA) modification in the tumor immune microenvironment (TIME), as well as their association with lung adenocarcinoma (LUAD).
Methods: Consensus clustering was performed to identify the subgroups with distinct immune or mA modification patterns using profiles from TCGA. A risk score model was constructed using least absolute shrinkage and selection operator regression and validated in two independent cohorts and LUAD tissue microarrays.
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