July 2021 in “International Journal of Community Medicine and Public Health” This study found that testosterone levels are commonly low among men with type 2 diabetes, and most of these men exhibit symptoms of hypogonadism, with BMI being a significant risk factor.
January 2021 in “Turkiye Klinikleri Journal of Dermatology” This study found that female patients with telogen effluvium had significantly lower serum prolactin levels compared to healthy controls, which contrasts with previous findings linking higher prolactin to hair loss.
June 2019 in “Journal of Akhtar Saeed Medical & Dental College” This study found that while serum prolactin levels were higher in women with hirsutism, the relationship between prolactin levels and hirsutism severity was not statistically significant.
September 2010 in “European Urology Supplements” Opioid use may lower PSA levels, suggesting a possible role in prostate cancer control; PSA testing is useful for detecting prostate cancer; serum triglycerides are not linked to prostate cancer risk; and higher urethral PSA levels may be associated with local hormone activity.
May 2025 in “International Journal of Trichology” This study found that in males with androgenetic alopecia, greater severity was significantly associated with elevated total cholesterol and triglyceride levels, suggesting a need for cardiovascular risk screening.
January 2025 in “International Journal of Scientific Research” In this study, researchers observed that patients with chronic telogen effluvium residing in fluoride-endemic areas had higher mean serum fluoride levels than those who lived there for less than five years, suggesting a possible link between elevated fluoride levels and increased hair shedding.
This study found no significant difference in serum ferritin levels between individuals with androgenetic alopecia and healthy controls, but reported lower ferritin levels in those with premature alopecia compared to adult-onset cases.
56 citations
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January 2008 in “Dermatology” This article discusses the controversy over serum ferritin levels in diagnosing iron deficiency in women with hair loss but reports no new findings, emphasizing the need for consistent reference ranges.
23 citations
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February 2017 in “Journal of dermatology” This meta-analysis suggests that patients with alopecia areata have lower serum levels of zinc and selenium compared to healthy controls, which may be important risk factors for the condition.
23 citations
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January 2016 in “International Journal of Trichology” This study found that women with female pattern hair loss had significantly lower serum Vitamin D3 levels compared to healthy controls.
21 citations
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January 2009 in “Indian journal of dermatology, venereology, and leprology” Vitamin B12, folate, ferritin, and iron levels are not linked to alopecia areata.
20 citations
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January 2019 in “International journal of trichology” This study found that patients with alopecia areata had significantly lower Vitamin D levels compared to controls, with a negative correlation between Vitamin D levels and disease severity.
15 citations
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January 2018 in “Indian Journal of Dermatology” This study reported that women with female androgenetic alopecia had significantly lower zinc levels in both serum and hair, and lower hair iron levels, compared to healthy controls.
13 citations
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May 2012 in “Cutaneous and ocular toxicology” In this study, researchers found no significant differences in vitamin B12, folate, and homocysteine metabolism between patients with alopecia areata and controls, suggesting no association with vitamin B12 deficiency.
10 citations
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January 2012 in “International Journal of Trichology” This study found no significant association between serum levels of vitamin B12, folate, TSH, ferritin, zinc, or anxiety scores and trichodynia in telogen alopecia patients.
8 citations
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June 2020 in “International Journal of Dermatology” This study found a significant correlation between vitamin D deficiency and the severity of androgenetic alopecia in males, suggesting that vitamin D may influence the condition's premature onset.
7 citations
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January 2016 in “Hair therapy & transplantation” This study reported significantly lower levels of serum iron, ferritin, and calcium in young patients with premature gray hair compared to controls, implying that supplementation might prevent further graying.
5 citations
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December 2024 in “Journal of Cosmetic Dermatology” Vitamin D and zinc may help treat alopecia areata.
4 citations
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April 2020 in “Journal of Cosmetic Dermatology” This study found that Chinese patients with alopecia areata, female pattern hair loss, and male androgenetic alopecia had significantly lower serum vitamin D levels than healthy individuals.
4 citations
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June 2019 in “Journal of Cosmetic Dermatology” In this study, serum omentin-1 levels were significantly higher in females with idiopathic hirsutism compared to those with PCOS and healthy controls.
3 citations
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June 2019 in “Journal of Bangladesh Society of Physiologist” This study found that patients experiencing hair loss had significantly lower serum levels of zinc and copper compared to healthy controls.
3 citations
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September 2017 in “Galen medical journal” This study observed elevated serum homocysteine levels in patients with psoriasis and cutaneous-oral lichen planus compared to healthy controls, but found no significant difference between the two patient groups.
2 citations
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August 2020 in “Journal of Cosmetic Dermatology” This study found that in patients with alopecia areata, serum granulysin levels decreased significantly after treatment with tofacitinib and correlated with reduced disease severity, suggesting serum granulysin as an indicator of immunological activity and response to therapy.
1 citations
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October 2024 in “Cureus” 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.
1 citations
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January 2024 in “International Journal of Applied Biochemistry and Molecular Biology.” 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.
1 citations
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October 2021 in “Benha Journal of Applied Sciences” 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.
1 citations
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January 2020 In this study, researchers found that serum anti-Mullerian hormone levels in adolescents with polycystic ovary syndrome were not influenced by body mass index.
1 citations
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November 2023 in “Anais Brasileiros de Dermatologia” This study suggests that the ADIPOQ gene polymorphism may influence the risk of alopecia areata in Egyptians, with adiponectin levels potentially serving as a marker for hair loss severity.
This study found a significant association between lower vitamin D levels and increased severity of androgenetic alopecia in men.
December 2025 in “Cureus” This study suggests that elevated levels of IL-17A and IL-23 in alopecia areata may play roles in disease severity and activity, providing insights into potential therapeutic targets.