research Enzymes
Enzymes are classified into six types and are essential for many biological processes, with only a few targeted by drugs.
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research Abstracts from the ASA 40th Annual Meeting
HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.
research Adverse Effects of Common Medications on Male Fertility
Some common medications can harm male fertility, but many effects can be reversed.
research Exposure of Xenopus Laevis Tadpoles to Finasteride, an Inhibitor of 5-Alpha Reductase Activity, Impairs Spermatogenesis and Alters Hypophyseal Feedback Mechanisms
Finasteride exposure harms tadpole reproduction and hormone balance.
research Recent Advances in Understanding and Managing Male Infertility
Losing weight, fixing varicoceles, and using advanced sperm selection methods improve male infertility treatment outcomes.
research Androgen Levels and Apoptosis in the Testis During Postnatal Development of Finasteride-Treated Male Rat Offspring
Finasteride treatment in male rats can reduce fertility and affect sperm development in their offspring.
research Biochemical and Structural Characteristics, Gene Regulation, Physiological, Pathological and Clinical Features of Lipocalin-Type Prostaglandin D2 Synthase as a Multifunctional Lipocalin
Lipocalin-Type Prostaglandin D2 Synthase (L-PGDS) is a protein that plays many roles in the body, including sleep regulation, pain management, food intake, and protection against harmful substances. It also affects fat metabolism, glucose intolerance, cell maturation, and is involved in various diseases like diabetes, cancer, and arthritis. It can influence sex organ development and embryonic cell differentiation, and its levels can be used as a diagnostic marker for certain conditions.
research Sperm Aneuploidy in Infertile Male Patients: A Systematic Review of the Literature
Infertile men are more likely to produce sperm with abnormal chromosome numbers, which can affect pregnancy success and embryo health.
research Reproductive Seasonality and Maturation Throughout the Complete Life-Cycle in the Mouflon Ram (Ovis Musimon)
Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.
research The First Visit: Consultation and Workup Before Sperm Banking
A thorough initial check-up is essential before sperm banking to ensure the best chance of preserving good quality sperm.
research Time Lags Between Various Maturity Measures and Spermarche
Certain maturity signs appear before and after the first release of sperm in boys.
research The Effect of 5α-Reductase Inhibition with Dutasteride and Finasteride on Semen Parameters and Serum Hormones in Healthy Men
Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
research Effects of the Chronic Use of Finasteride on Testicular Weight and Spermatogenesis in Wistar Rats
Finasteride doesn't change rat testicle weight or sperm production.
research Expression of E-SOD, GPX5 mRNAs and Immunoexpression of Cu/ZnSOD in Epididymal Epithelial Cells of Finasteride-Treated Rats
Finasteride changes antioxidant enzyme expression, possibly affecting sperm protection in rats.
research A Combined Regimen of Cyproterone Acetate and Testosterone Enanthate as a Potentially Highly Effective Male Contraceptive
The combination of cyproterone acetate and testosterone enanthate is highly effective in preventing sperm production and could be a good reversible male contraceptive.
research Spontaneous Fertility in a Male Patient with Testotoxicosis Despite Suppression of FSH Levels
A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
research Potential Adverse Effects of Long-Term Testosterone Therapy
Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.
research Study on the Zona Pellucida 4 (ZP4) Gene Sequence and Its Expression in the Ovaries of Patients with Polycystic Ovary Syndrome
The research suggests that the ZP4 gene is linked to egg development in women with PCOS but requires more study to understand its role in infertility.
research Is Age at Puberty Associated with Semen Quality and Reproductive Hormones in Young Adult Life?
Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
research New Biomarkers to Evaluate Hyperandrogenemic Women and Hypogonadal Men
The document concludes that hormonal biomarkers are key for diagnosing hyperandrogenemia in women and hypogonadism in men.
research Effects of Pre- and Post-Pubertal Dihydrotestosterone Treatment on Penile Length in 5α-Reductase Type 2 Deficiency
Dihydrotestosterone treatment can help penis growth in boys with 5α-reductase deficiency but doesn't fully normalize size after puberty.
research Stem Cells in the Body
Stem cells regenerate tissues and their behavior varies by environment, suggesting the hematopoietic system model may need revision.
research Nonclassic Congenital Adrenal Hyperplasia Due to 21-Hydroxylase Deficiency: Pathophysiology, Diagnosis, and Treatment
The document concludes that Nonclassic Congenital Adrenal Hyperplasia requires personalized treatment plans to manage symptoms and fertility, with glucocorticoids being a common therapy.
research The Transcriptional Repressor CDP (Cutl1) Is Essential for Epithelial Cell Differentiation of the Lung and the Hair Follicle
CDP is crucial for lung and hair follicle cell development.
research The Effects of Estrogens on Linear Bone Growth
Oestrogens are key for bone growth during puberty in both boys and girls.
research Physiological Functions of PP2A: Lessons from Genetically Modified Mice
Mice studies show that Protein Phosphatase 2A is crucial for cell growth, development, and disease prevention.
research A Case of Familial Male-Limited Precocious Puberty with a Novel Mutation
A boy with a rare form of early puberty caused by a new gene mutation responded well to treatment aimed at reducing testosterone and preserving adult height.
research The Effects of Ficus Carica on Male and Female Reproductive Capabilities in Rats
Ficus carica extract improved fertility in rats and may help with certain health conditions.
research Gonadal Sex Steroids: Production, Action, and Interactions in Mammals
The document concludes that sex hormones are crucial for mammalian reproduction, health, and behavior, and require more research for therapeutic use.
research Pregnancy Outcomes with Paternal Exposure to Finasteride, a Synthetic 5-Alpha-Reductase Inhibitor: A Case Series
Babies were mostly born healthy from fathers who took finasteride, but some pregnancies ended early; more research is needed.