Four genes are linked to alopecia areata, with two increasing risk and two offering protection.
Early-onset baldness is linked to genetics, lifestyle, and can indicate higher risk for heart and metabolic diseases, and affects mental health.
July 2023 in “Research Square (Research Square)” Certain gut bacteria may protect against alopecia areata, while others may increase the risk.
106 citations
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March 2013 in “Nature Communications” A new genetic region, 17q21.31, is linked to higher ovarian cancer risk.
February 2022 in “International journal of KIU” Certain genes and nutrients like vitamin D, zinc, and omega fatty acids affect COVID-19 severity and infection risk.
391 citations
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September 2015 in “Journal of Clinical Lipidology” The guidelines suggest lifestyle changes, diet adjustments, and personalized medication to manage dyslipidemia and reduce heart disease risk.
42 citations
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April 2013 in “Steroids” Non-classic congenital adrenal hyperplasia is a common disorder causing symptoms like acne and infertility, and it's managed based on symptoms, not just test results. Treatment can improve fertility and reduce miscarriage risk.
1 citations
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February 2018 in “InTech eBooks” PCOS in lean women is a serious health condition with implications beyond fertility, affecting metabolism and increasing cardiovascular disease risk.
February 2025 in “Clinical Cosmetic and Investigational Dermatology” Genetic risk for hair loss can increase depression risk, but depression doesn't increase hair loss risk.
May 2024 in “JAMA Dermatology” Oral contraceptive use may increase the risk of frontal fibrosing alopecia in women with a specific CYP1B1 gene variant.
47 citations
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April 2021 in “BMC Medical Genomics” Certain gene variants can influence acne risk and severity.
13 citations
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January 2023 in “Annual Review of Cancer Biology” Cancer risk is linked to the balance of mutations and environmental factors, not just the number of mutations.
26 citations
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May 2024 in “Molecular Neurodegeneration” H1 increases risk for neurodegenerative diseases, while H2 offers protection but is linked to other disorders.
12 citations
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March 2023 in “Frontiers in immunology” Atopic dermatitis increases the risk of some autoimmune diseases.
19 citations
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July 2020 in “EBioMedicine” A gene variant increases the risk of a type of hair loss by affecting hair protein production.
1 citations
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October 2024 in “Medicina” CLEC4D gene variants may increase the risk of alopecia areata in Jordanians.
Certain gut bacteria may protect against or increase the risk of hair loss.
August 2024 in “Skin Research and Technology” Omega-6 and LDL cholesterol increase the risk of hair loss.
29 citations
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November 2022 in “Nature Medicine” Genetic variations greatly affect individual metabolism and can impact health and disease risk.
11 citations
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April 2019 in “Bioscience Reports” Certain genetic variations in the RAB5B gene are linked to a higher risk of polycystic ovary syndrome in Chinese Han women.
1 citations
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May 2025 in “Journal of Cosmetic Dermatology” Blood metabolites significantly influence alopecia areata risk.
42 citations
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July 2013 in “Gene” IL-4 gene variation may increase the risk of alopecia areata in Turkish people.
29 citations
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October 2020 in “eLife” Higher testosterone levels can increase the risk of certain diseases like type 2 diabetes in women and prostate cancer in men, but can also protect against autoimmune diseases and hair loss. It also affects body fat and bone density.
26 citations
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October 2014 in “Andrologia” Infertile men are more likely to produce sperm with abnormal chromosome numbers, which can affect pregnancy success and embryo health.
19 citations
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August 2017 in “American journal of clinical dermatology” Hepatitis B virus exposure may be linked to increased risk of alopecia areata.
11 citations
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November 2017 in “Hong Kong Medical Journal” Polycystic ovary syndrome increases the risk of diabetes, heart disease, and endometrial cancer, and requires early treatment to manage these risks.
5 citations
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March 2021 in “F1000Research” A specific gene variation increases the risk of high uric acid and cholesterol in young Mexican males.
2 citations
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September 2021 in “F1000Research” The ABCG2 gene variant increases the risk of high uric acid and cholesterol, especially in overweight or obese young Mexican males.
1 citations
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May 2023 in “European Journal of Human Genetics” Rare ULBP3 gene changes may raise the risk of Alopecia areata, a certain FAS gene deletion could cause a dysfunctional protein in an immune disorder, and having one copy of a specific genetic deletion is okay, but two copies cause sickle cell disease.
January 2024 in “Biomarker Insights” Certain genetic variants may increase the risk of developing PCOS.