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Glossary Autoimmune Mechanisms

body's immune system mistakenly attacks its own tissues

Autoimmune mechanisms refer to the processes by which the body's immune system mistakenly attacks its own tissues, thinking they are foreign invaders. This can lead to various autoimmune diseases, such as alopecia areata, where the immune system targets hair follicles, resulting in hair loss. Understanding these mechanisms is crucial for developing treatments that can modulate the immune response and prevent tissue damage.

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Research

5 / 1000+ results

research Nonsegmental Vitiligo and Autoimmune Mechanism

27 citations , January 2011 in “Dermatology Research and Practice”

This review discusses the autoimmune pathogenesis of non-segmental vitiligo and highlights the genetic susceptibility linking it to other autoimmune disorders, but reports no new clinical results.

research The role of B cell-activating factor system in autoimmune diseases: mechanisms, disease implications, and therapeutic advances

4 citations , June 2025 in “Frontiers in Immunology”

This review discusses the role of the BAFF system in autoimmune diseases and highlights its therapeutic potential, emphasizing the need for disease-specific clinical trials to improve treatment strategies.

The Possible Implication of the S250C Variant of the Autoimmune Regulator Protein in a Patient with Autoimmunity and Immunodeficiency: In Silico Analysis Suggests a Molecular Pathogenic Mechanism for the Variant

research The possible implication of the S250C variant of the autoimmune regulator protein in a patient with autoimmunity and immunodeficiency: in silico analysis suggests a molecular pathogenic mechanism for the variant

11 citations , July 2014 in “Gene”

This study reports a unique case of common variable immunodeficiency with autoimmunity linked to a heterozygous S250C variant in the autoimmune regulator gene, suggesting a potential molecular basis for this combination.

research Alopecia areata as a model for T cell‐dependent autoimmune diseases

28 citations , May 2012 in “Experimental Dermatology”

This article discusses alopecia areata as a potential model for studying T cell-dependent autoimmune diseases and reports no new experimental findings.

research Immune-Molecular Link between Thyroid and Skin Autoimmune Diseases: A Narrative Review

6 citations , September 2024 in “Journal of Clinical Medicine”

This review explored the relationship between autoimmune thyroiditis and various autoimmune skin conditions, highlighting shared genetic markers and immunological mechanisms, such as disrupted immune tolerance and oxidative stress, which may contribute to the development of these disorders.

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Community Join

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community PP405 mechanism question - looking for discussion

7 upvotes 5 months ago

PP405 may promote short-term hair growth by pushing follicles into the growth phase, but concerns exist about long-term effects due to lack of rest phases. Users discuss various treatments like finasteride, minoxidil, spironolactone, alfatradiol, and investigational drugs like KX-826 and GT20029 for hair maintenance and regrowth.

community Phase 3 Study for PP405 officially posted

43 upvotes 6 days ago

PP405 is in a phase 3 trial for hair loss treatment, with the study expected to run until June 2028. Minoxidil and finasteride remain key treatments, with hopes for PP405 to offer a new mechanism of action.

community Will PP405 work if even dutasteride / fin failed to halt hair loss?

in Finasteride/Dutasteride 8 upvotes 5 months ago

The conversation discusses the ineffectiveness of dutasteride in halting hair loss for the user and explores the potential of PP405, which works through a different mechanism. Suggestions include considering a biopsy to determine the cause of hair loss and exploring other treatments like RU58841.

community Dutasteride thins eyebrows and facial hair but doesn't stop scalp loss.

in Finasteride/Dutasteride 37 upvotes 1 year ago

Dutasteride may not effectively stop scalp hair loss and can cause thinning of facial and body hair, including eyebrows. Users suggest considering other causes like autoimmune conditions or vitamin deficiencies and exploring treatments like finasteride or minoxidil.

community Not everyone should immediately go on Fin if they are starting to bald

in Finasteride/Dutasteride 21 upvotes 2 years ago

The conversation suggests that people should consult a dermatologist to understand their type of hair loss before starting treatments like finasteride or dutasteride, especially if they have autoimmune issues or low DHT. Some participants believe in starting treatment like finasteride immediately if hair loss is due to DHT, while others recommend ruling out other causes and considering minoxidil first, especially for younger individuals.

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Learn

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learn Tofacitinib

a JAK inhibitor for alopecia areata and other autoimmune conditions

What is tofacitinib, and why is it discussed in relation to autoimmune-related hair loss such as alopecia areata? Tofacitinib is a prescription JAK inhibitor approved for rheumatoid arthritis, psoriatic arthritis and ulcerative colitis — not for alopecia areata. It is discussed for hair loss because a 2014 case report and a 2016 open-label trial reported regrowth in severe alopecia areata, but that use is off-label, the regrowth relapsed after stopping, and the drug carries an FDA boxed warning.

learn Metformin

diabetes drug with anti-inflammatory, immunomodulatory, and insulin-sensitizing properties

learn Baricitinib

JAK inhibitor that reduces inflammation and immune attacks on hair follicles, leading to potential hair regrowth, especially in alopecia areata cases

learn Vitamin D

vitamin you should probably be taking for general health might also help your hair a little

learn Neem Oil

natural substance from Neem tree with medicinal and pesticidal properties

learn Cetirizine

Could cetirizine help control autoimmune triggers in alopecia areata? No published trial has tested cetirizine in alopecia areata; one registered trial has not reported results. Small trials in pattern hair loss report modest benefit, so any use for alopecia areata is off-label and unproven.

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