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This study concluded that PCOS patients, regardless of weight, have significantly lower serum amylin levels than healthy BMI-matched controls, while serum preptin levels did not vary significantly between groups.

This study examined serum PSA levels in women with androgenetic alopecia to evaluate their potential as a marker for androgen effects on target organs.

This study suggests that hypersensitivity and increased serum IgE levels might contribute to the pathogenesis of diffuse alopecia areata through intense local inflammatory infiltration.

This review summarizes a meta-analysis suggesting that finasteride is most effective for improving symptoms and urinary flow in men with large prostates experiencing benign prostatic hyperplasia.

The study characterized the transcriptional changes in porcine SKP cells transitioning to fibroblast-like cells, indicating potential roles for specific signaling pathways in this cell fate transition.

This study found that higher serum IL-21 levels may serve as a promising diagnostic and prognostic marker for alopecia areata, strongly correlating with disease activity.

This study found that variations in sleep patterns, free testosterone, and 5-alpha-reductase type 1 activity are associated with changes in sebum excretion in women, which may contribute to variability in acne studies.

This study concluded that among men with normal testosterone levels, a small increase in serum dihydrotestosterone may reduce symptoms of hypogonadism, suggesting its potential diagnostic use after ruling out hypogonadism.

This study found that patients experiencing hair loss had significantly lower serum levels of zinc and copper compared to healthy controls.

People with psoriasis and depression have lower BDNF levels, which could help measure depression in those with psoriasis.

In this study, researchers observed that patients with Alopecia Areata had significantly lower serum zinc and higher copper levels compared to healthy controls, indicating a disrupted zinc-copper balance that may contribute to the disease's pathogenesis.

Iron and zinc deficiencies may be treated to help female hair loss.

In this study, cross-sex hormone therapy affected hair growth patterns differently, with estrogen reducing hair growth in male-to-female transsexuals and testosterone increasing it in female-to-male transsexuals; however, male typical hair diameters were not fully reached in the latter group after 12 months.

In this study, 1 mg/day finasteride lowered serum PSA concentration in men aged 40–60, suggesting that PSA adjustment recommendations for prostate cancer screening using 5 mg/day finasteride should also apply to this lower dose for hair loss treatment.

This study found that testosterone replacement, with or without finasteride, did not lead to significant cognitive improvements over 36 months in healthy older men without prior cognitive impairment.

This review discusses the properties and therapeutic potentials of beta-sitosterol, highlighting a need for more detailed studies on its mechanisms and long-term effects in humans; it reports no new results.

In this study, distinct metabolic profiles were identified in women with PCOS, suggesting potential biomarkers for diagnosis based on changes in lipid and androgen metabolism.

The conclusion is that androgenetic alopecia and senescent alopecia have unique gene changes, suggesting different causes and potential treatments for these hair loss types.

This study found that a novel missense mutation in the vitamin D receptor caused hereditary 1,25-dihydroxyvitamin D-resistant rickets with alopecia by disrupting protein function, highlighting the importance of DNA binding in hair development.

This study found that women with polycystic ovary syndrome have higher serum VEGF-B levels, which are linked to insulin resistance and decrease after metformin treatment.

This study found that patients with androgenetic alopecia had increased oxidative stress and microinflammation, contributing to hair loss, due to elevated levels of specific serum biomarkers compared to controls.

This meta-analysis found that traditional Chinese medicine may be an effective and safe adjuvant therapy for androgenetic alopecia, improving efficacy rates and symptom scores compared to conventional medicine.

This study found that lower serum melatonin levels were associated with increased skin aging grades among individuals in Ulaanbaatar, suggesting melatonin loss may contribute to earlier skin aging.

This study found that a novel R343H mutation in the vitamin D receptor gene impairs its transcription activity, contributing to hereditary vitamin D-resistant rickets and alopecia in the affected family.

This study found that transthyretin and megalin expression in human scalp hair follicles varies significantly with the hair growth cycle, peaking during anagen and diminishing in catagen and telogen phases.

This study found that serum steroid profiling, particularly 11-deoxycortisol, can effectively differentiate between ACC and ACA, while considering sex differences and functional status for other steroids is important.

In this study, patients with alopecia areata showed significantly elevated serum levels of IFN-γ and severely deficient vitamin D3 levels compared to healthy controls.

This study found no significant link between iron metabolism, including serum ferritin and hemoglobin levels, and telogen effluvium in women under 40 years old.

This study found that men with vertex baldness had higher serum dihydrotestosterone levels compared to those with frontal baldness, suggesting different hormonal profiles between these two groups in androgenetic alopecia.

This study found a significant decline in serum zinc levels among women of African descent using hair relaxers and experiencing alopecia, with age at first exposure potentially influencing alopecia development.