September 2025 in “Journal of Dhaka Medical College” This study found that patients with alopecia areata had significantly lower serum 25-Hydroxy vitamin D levels compared to healthy controls, and observed a significant inverse relationship between vitamin D levels and disease severity.
June 2025 in “Public Health of Indonesia” This study found that women with chronic telogen effluvium had significantly lower levels of zinc, calcium, vitamin D, and ferritin compared to healthy women without hair loss, suggesting that monitoring and restoring these micronutrients may be crucial in managing this condition.
October 2024 in “Archives of Dermatological Research” The study found that patients with androgenetic alopecia had higher serum GPER-1 levels, which were associated with disease severity and duration, indicating a potential estrogen-independent role of GPER-1 in the condition's pathogenesis.
August 2023 in “The American Journal of the Medical Sciences” This study found that men with androgenetic alopecia had higher serum uric acid levels and a greater incidence of hyperuricemia compared to those without, but finasteride treatment significantly reduced uric acid levels over six months.
April 2023 in “Dohuk medical journal” This study analyzed serum vitamin D levels in patients with telogen effluvium to explore their potential relationship, but it reports no new clinical findings.
February 2022 in “Global academic journal of medical sciences” This study observed lower vitamin D levels in alopecia areata patients compared to healthy controls and suggested a possible causal role of vitamin D deficiency in the condition.
January 2022 in “The Egyptian Journal of Hospital Medicine” 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.
October 2021 in “Dermatology Reports” This study found that serum IL-17A levels were significantly higher in patients with alopecia areata compared to healthy controls and correlated with disease severity and activity.
January 2012 in “Iraqi postgraduate Medical Journal” This study found that low serum ferritin levels were significantly associated with chronic telogen effluvium in adult menstruating females, suggesting that serum ferritin is a better indicator of low iron stores than hemoglobin levels in this condition.
January 2019 in “Türkiye klinikleri dermatoloji dergisi” This study investigated the role of serum iron, ferritin, zinc, and folic acid levels in women with diffuse hair loss but reports no findings.
February 2023 in “El-Minia Medical Bulletin” This study found that female patients with androgenetic alopecia had significantly lower serum zinc and iron levels compared to healthy controls, suggesting supplementation may be beneficial.
November 2021 in “International Journal of Trichology” This study found that androgenetic alopecia patients had significantly lower serum levels of paraoxonase 1, which correlated with disease severity and suggests a role of oxidative stress in its pathogenesis.
This study examined serum PSA levels in women with androgenetic alopecia to evaluate their potential as a marker for androgen effects on target organs.
52 citations
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July 2015 in “International Journal of Dermatology” This study found that patients with alopecia areata had significantly lower serum zinc levels, which correlated inversely with disease severity, duration, and resistance to therapies, suggesting zinc assessment as a marker of disease status.
7 citations
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August 2017 in “European Journal of Obstetrics & Gynecology and Reproductive Biology” This study found that lower serum vaspin levels (below 3.74ng/mL) may predict successful ovulation induction with clomiphene citrate in anovulatory women with PCOS, indicating potential resistance when levels are higher.
5 citations
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October 2018 in “Medical Science Monitor” 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.
4 citations
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July 2019 in “IOP conference series” This study found no significant association between premature hair graying and serum ferritin or vitamin D levels in young adult males at Universitas Sumatera Utara.
3 citations
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January 2017 in “Indian journal of health sciences and biomedical research KLEU” This study found that women with chronic diffuse hair loss had low serum ferritin levels, indicating a significant association with decreased iron stores.
2 citations
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December 2021 in “Cureus” This review discusses the potential link between low serum vitamin D levels and androgenetic alopecia and reports that vitamin D might be useful for diagnosis and treatment, but no new clinical results are included.
2 citations
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January 2017 in “Iraqi journal of medical sciences” This study found that serum zinc levels were significantly decreased in obese women with polycystic ovary syndrome compared to their non-obese counterparts.
2 citations
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January 2012 in “Hair therapy & transplantation” This study found no significant link between iron metabolism, including serum ferritin and hemoglobin levels, and telogen effluvium in women under 40 years old.
1 citations
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July 2016 in “Mağallaẗ Kulliyyaẗ al-ṭibb Baġdād” 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.
December 2025 in “Cureus” This study found that women with telogen effluvium had significantly lower serum ferritin levels compared to healthy controls, suggesting an association between iron deficiency and this form of hair loss.
October 2025 in “Pakistan Journal of Health Sciences” This study found that low serum ferritin levels were significantly associated with non-scarring alopecia in women from Punjab, Pakistan, suggesting that assessing ferritin could help identify iron deficiency as a modifiable factor in hair loss.
April 2024 in “Proceedings” This study found a significant association between alopecia areata and low serum ferritin levels, suggesting that assessing and correcting iron stores might improve alopecia areata management.
January 2024 in “International Journal of Trichology” This study suggests that serum paroxonase 1 levels are decreased in patients with androgenetic alopecia and may serve as a useful biomarker for this condition.
November 2022 in “SAS journal of medicine” This study found that serum ferritin levels were significantly higher in Jordanian patients with alopecia areata compared to controls, but still within the normal range.
June 2019 in “Journal of Medical Sciences” This study found that female patients with telogen effluvium had significantly lower serum ferritin levels compared to healthy individuals, suggesting an association between low ferritin and this condition.
January 2013 in “kerbala journal of pharmaceutical sciences” The researchers reported that adult menstruating females with chronic telogen effluvium had significantly lower serum zinc levels compared to healthy controls, suggesting an association between decreased zinc levels and CTE.
This study reported no significant difference in serum ferritin levels between female patients with telogen effluvium and those without hair loss.