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This study reported that women with polycystic ovarian syndrome have higher serum irisin levels, which are associated with metabolic and hormonal imbalances, including hyperandrogenism, total cholesterol, and visceral fat.

This study highlighted that Sertoli-Leydig cell tumors should be considered in young women with secondary amenorrhea and virilization, and fertility-preserving surgery can be effective when diagnosed early.

This study found no significant causal relationship between androgenetic alopecia and serum uric acid levels using various Mendelian randomization methods, suggesting the need for future research with larger cohorts and advanced methods to further explore this potential association.

In this retrospective study of eight Saudi children with hereditary vitamin D resistant rickets, researchers observed that adjunctive cinacalcet appeared safe and showed initial promise in improving serum PTH levels, though further investigation is needed to confirm its efficacy.

In this case-control study, EGF levels were significantly higher in patients with alopecia areata than in healthy controls, and these elevated levels positively correlated with the severity and extent of the disease, suggesting EGF as a potential marker for alopecia areata severity.

This study developed a validated gas chromatography–tandem mass spectrometry assay to assess sex steroid hormones in cerebrospinal fluid, finding substantial levels of DHEA, androstenedione, and testosterone, with strong correlations to serum levels, providing insight into sex steroid dynamics in the human CNS.

This review discusses the role of ferritin in iron homeostasis and its potential utility in diagnosing iron deficiency as a cause of hair loss, while noting that ferritin's impact on skin and hair disorders is not fully understood.

This study observed a significant association between antigliadin antibodies (IgA and IgG) and alopecia areata severity, suggesting that serological tests could help diagnose subclinical celiac disease in these patients, with IgA and IgG showing 100% sensitivity and specificity at specific cutoff points.

In this study, researchers observed that lower serum zinc concentrations were associated with decreased serum testosterone levels, but no link was found with sexual function questionnaire scores.

This report highlights a serious complication associated with low-dose oral minoxidil in treating female androgenetic alopecia, an adverse effect previously thought to be rare and minor.

This study reported that low serum ferritin levels in pediatric patients with alopecia areata were associated with increased disease severity and longer duration.

This case report describes a woman in her 30s who had virilisation and androgenic alopecia due to a testosterone-secreting ovarian tumor, which normalized after its surgical removal.

This case report suggests a potential link between the intake of Serenoa repens, commonly known as Saw palmetto, and the onset of erectile dysfunction.

This study found that individuals with acne vulgaris had significantly higher serum total thiol and thiol disulfide levels, as well as a reduced total thiol/thiol disulfide ratio, compared to healthy controls.

This study found that vitamin D levels were significantly lower in men with androgenetic alopecia compared to healthy controls, while ferritin levels showed no significant difference.

This study found low serum ferritin and vitamin B12 levels in a significant portion of women with chronic telogen effluvium, while vitamin D deficiency was less common.

This study found that lower serum ferritin levels were significantly associated with telogen effluvium compared to healthy subjects and may serve as a potential biomarker for its diagnosis.

This study found that ischemia-modified albumin (IMA) levels were significantly higher in patients with male pattern androgenetic alopecia compared to healthy controls, and these levels correlated with AGA duration and severity.

This study found that metabolic syndrome was more prevalent among androgenetic alopecia patients than controls, with higher serum RANTES levels suggesting a potential role in the syndrome's pathogenesis.

This study investigates the potential correlation between serum ferritin levels and diffuse hair loss, but it reports no new clinical findings.

In this study, premature hair graying in Egyptians was significantly linked to family history, stress, sedentary lifestyle, and low serum ferritin levels, but not to vitamin D deficiency.

This study observed that aloe vera serum was comparable to minoxidil in promoting hair growth over 21 days but had no effect on sun protection.

This study found no significant difference in serum levels of lead and selenium between patients with premature hair graying and those without it.

This study found no significant association between ABO blood groups, Rhesus factor, and ferritin levels in women with telogen effluvium.

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 case series reported three instances where alopecia linked to sodium valproate was reversed after discontinuing the drug.

This study presents two case reports where patients experienced hair loss during treatment with the SSRI sertraline, highlighting this rare but potential side effect.

This study found that women with polycystic ovary syndrome had significantly higher levels of prostate-specific antigen, which positively correlated with testosterone levels, the LH/FSH ratio, and hirsutism severity.

This study found no significant difference in H. pylori antibody levels between women with and without PCOS, suggesting H. pylori infection may not influence infertility in these women.

This study found higher serum prolactin levels in patients with psoriasis, vitiligo, and alopecia areata compared to controls, and prolactin levels correlated with disease severity in psoriasis and alopecia areata but not vitiligo.