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Glossary Serum Levels

amount of a substance in the blood's liquid component

Serum levels, also known as blood serum levels or serum concentration, refer to the amount of a specific substance present in the liquid part of the blood after the blood has clotted and the cells have been removed. These measurements are crucial for diagnosing and monitoring various medical conditions, as they can indicate the presence and severity of diseases, the effectiveness of treatments, or the body's response to medications.

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Assessment of Serum Level of Brain-Derived Neurotrophic Factor in Pediatric Alopecia Areata: A Case-Control Study

research Assessment of Serum Level of Brain-Derived Neurotrophic Factor (BDNF) In Pediatric Alopecia Areata: A Case - Control Study

September 2025

This study found that pediatric alopecia areata patients had significantly lower serum BDNF levels compared to healthy controls, which were associated with greater alopecia severity, higher depressive symptoms, and poorer quality of life.

research Gene polymorphisms and serum levels of BDNF and CRH in vitiligo patients

July 2022 in “PLOS ONE”

In this study, significant associations were observed between specific genetic polymorphisms in BDNF and CRH-R1 and the occurrence of vitiligo, along with differing serum levels of neurotransmitters between vitiligo patients and healthy controls.

research Correlation between serum brain-derived neurotrophic factor level and depression severity in alopecia areata patients

1 citations , June 2022 in “International Journal of Health Sciences”

This study found that lower serum BDNF levels were associated with higher depression severity and more severe alopecia areata in patients.

research Evaluation of serum brain-derived neurotrophic factor to assess the association between psoriasis and depression

2 citations , September 2015 in “Journal of the Egyptian Women's Dermatologic Society (Print)”

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

research Association between Serum Brain-derived Neurotrophic Factor and 25-OH Vitamin D Levels with Vitamin D Receptors Gene Polymorphism (rs2228570) in Patients with Autoimmune Thyroiditis and Hypothyroidism

7 citations , August 2021 in “Open Access Macedonian Journal of Medical Sciences”

In this case–control study, the researchers in Ukraine found no significant link between VDR rs2228570 polymorphism and decreased serum BDNF levels, though they observed a moderate correlation between serum BDNF and 25-OH Vitamin D levels in patients with thyroid disorders.

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community Stop Complaining about Creatine. You're just fixated on shedding.

73 upvotes 1 year ago

Creatine is unlikely to cause hair loss as it does not raise DHT levels. Hair loss is more likely due to genetics, medications, or lifestyle changes.

community Is anyone taking creatine while on fin and/or dut?

in Finasteride/Dutasteride 33 upvotes 2 years ago

The conversation discusses the use of creatine while on finasteride and/or dutasteride for hair loss. Opinions vary, with some users reporting no issues and others experiencing accelerated hair loss, suggesting effects are individual.

community Dutasteride Users, do you Still Take Creatine?

10 upvotes 1 year ago

The conversation discusses the potential impact of creatine on hair loss, with some users sharing personal experiences of increased shedding while others argue there's no scientific evidence linking creatine to hair loss. The original poster switched from finasteride to dutasteride and is considering resuming creatine after monitoring its effects on hair loss.

community 1.5 Year - Bad Results (HT, FIN, MINO, PRP, etc)

64 upvotes 2 years ago

A user shared their disappointing results after 1.5 years of hair treatments, including a hair transplant, finasteride, minoxidil, PRP, vegan shampoo, and more. They are considering switching to dutasteride, oral minoxidil, and improving their microneedling routine.

community Fats on your Head to Stop Hair Loss?

140 upvotes 2 years ago

The conversation discusses the potential of long-chain unsaturated fatty acids, like oleic and linoleic acid, as an additional treatment for hair loss, which may inhibit the enzyme responsible for converting testosterone to DHT and promote hair growth. Users humorously suggest using oils topically and discuss other hair loss treatments, but the main focus is on the science behind fatty acids and their role in hair health.

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