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.
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research What Women Want: Quantifying the Perception of Hair Amount - An Analysis of Hair Diameter and Density Changes with Age in Caucasian Women
Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
research Age-Dependent Regulation by Androgens of Gene Expression in the Anterior Hypothalamus and Stress-Induced Release of Adrenal Hormones in Adolescent and Adult Male Rats
Testosterone affects stress hormone levels differently in adolescent and adult male rats.
research Multi-Trait Analysis of GWAS: Perceived Youthfulness in the UK Biobank
The conclusion is that certain traits, including perceived facial aging and BMI, are linked to perceived youthfulness differently in men and women.
research Multi-Trait Analysis of GWAS: Perceived Youthfulness in the UK Biobank
The conclusion is that certain traits, including perceived facial aging and BMI, are linked to how youthful people look, with some differences between males and females.
research Epidemiological Trends in Alopecia Areata at the Global, Regional, and National Levels
Cases of alopecia areata and its impact on life quality rose globally, but when adjusted for age, the rates decreased, especially in poorer regions.
research Dysfunction of Hair Follicle Mesenchymal Progenitors Is Associated with Age-Related Hair Loss
Age-related hair loss is linked to the decline and dysfunction of hair follicle stem cells.
research Effects of Age and Sex on the Comorbidities of Alopecia Areata: A Cross-Sectional Hospital-Based Study
Alopecia Areata is linked to a higher risk of several diseases, which vary with age and sex.
research Single-Cell RNA Sequencing and Proteomic Analysis of Dermal Fibroblasts Cultured From Female Scalp Identifies Significant Alterations in Cell Populations With Age
Aging changes scalp cells, possibly affecting hair health in older women.
research Age-Associated Inflammation Inhibits Epidermal Stem Cell Function
Aging causes skin stem cells to work less effectively.
research Advanced Age Impairs Self-Renewal and Biases Fate Choice of Hair Follicle Dermal Stem Cells
Older hair follicle stem cells have a reduced ability to renew themselves, leading to more hair loss.
research In Silico Analysis of the Age-Dependent Evolution of the Transcriptome of Mouse Skin Stem Cells
The research found that the gene activity in mouse skin stem cells changes significantly as they age.
research Age-Related Changes in Male Skin: Quantitative Evaluation of One Hundred and Fifty Male Subjects
Male skin gets drier and more alkaline as it ages, which may need different skincare than women's skin.
research The Rho GTPase Exchange Factor Vav2 Promotes Extensive Age-Dependent Rewiring of the Hair Follicle Stem Cell Transcriptome
Vav2 changes how hair follicle stem cells' genes work as they age, which might improve regeneration but also raise cancer risk.
research Age-Associated Decrease in GDNF and Its Cognate Receptor GFRα-1 Protein Expression in Human Skin
Human skin has less GDNF and its receptor with age.
research Epidemiology of Vitiligo: A Dual Population-Based Approach
Vitiligo is underreported in medical claims and is linked to certain skin types and autoimmune diseases.
research Female Pattern Hair Loss
Female pattern hair loss in women can be due to hormones or aging.
research Unveiling the Effect of Age and IgE Level on Alopecia Areata: Insights from Comparative RNAseq Analysis
Pediatric alopecia areata is more immune-active than adult cases, suggesting age-specific treatments and potential use of JAK inhibitors.
research Age-Related Differences for Male-to-Female Transgender Patients Undergoing Gender-Affirming Surgery
Younger transgender women have surgery earlier, are mostly attracted to men, and show more preoperative depression that improves after surgery compared to older transgender women.
research In The Quest To Stymie Time, Will Laboratory Data Stand Up In Man?
Genetic manipulations that extend lifespan in mice may not work as effectively in humans.
research A Clinical Study of Geriatric Dermatoses
Older adults have a wide range of skin conditions, with dry skin being very common and many also experiencing skin growths, itching, and infections.
research Adipocytes in Skin Health and Disease
Fat cells are important for healthy skin, hair growth, and healing, and changes in these cells can affect skin conditions and aging.
research Combating Aging in Dermal Papilla Cells and Promoting Hair Follicle Regeneration Using Exosomes from Human Hair Follicle Dermal Sheath Cup Cells
Exosomes from human hair follicle cells can improve aging hair follicle cell function and help regenerate hair follicles.
research Immunohistochemical Patterns in the Interfollicular Caucasian Scalps: Influences of Age, Gender, and Alopecia
Age, gender, and hair loss affect scalp characteristics differently in young Caucasian adults.
research Extracellular Proteoglycan Decorin Maintains Human Hair Follicle Stem Cells
Decorin helps keep hair follicle stem cells and may prevent age-related hair loss.
research Age-Specific Cut-Off Levels of Anti-Müllerian Hormone as Diagnostic Markers for Polycystic Ovary Syndrome
Different levels of anti-Müllerian hormone can help diagnose polycystic ovary syndrome in women of different ages.
research Aging Skin: A Window to the Body
Skin aging reflects overall body aging and can indicate internal health conditions.
research Effect of Age on Local Action of Adrenocortical Hormones
Adrenocortical extract is less effective at stopping hair growth in young rats than in adult rats.
research Pseudoxanthoma-Like Late-Onset Focal Dermal Elastosis
A woman had a skin condition with increased normal elastic fibers, not related to other known disorders, likely due to aging.
research Immunoreactivity of the SARS-CoV-2 Entry Proteins ACE-2 and TMPRSS-2 in Murine Models of Hormonal Manipulation, Aging, and Cardiac Injury
Age affects how certain proteins involved in COVID-19 infection are expressed in mice, but sex hormones and heart injury do not.