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Did you mean Small Molecule Inhibitor?

Glossary Small Molecule Inhibitor

blocks specific proteins or enzymes within cells

A Small Molecule Inhibitor (SMI) is a type of drug that can enter cells easily due to its low molecular weight and can interfere with specific proteins or enzymes to block their activity. These inhibitors are often used in treatments for various diseases, including cancer and autoimmune disorders, by targeting and disrupting specific pathways that contribute to disease progression.

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Research

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research 711 Small molecule wnt pathway inhibitor (SM04755) as a potential topical psoriasis treatment

April 2017 in “Journal of Investigative Dermatology”

This study found that SM04755, a novel topical drug, inhibited inflammation, keratinocyte proliferation, and fibrosis in vitro and improved skin health in a mouse model of psoriasis, indicating potential as a topical psoriasis treatment.

research Small Molecule Inhibitors and Inflammatory Skin Diseases

March 2018 in “Suez Canal University Medical Journal”

This review examines targeting the JAK-STAT pathway in inflammatory skin diseases, highlighting existing JAK inhibitors and potential developments, but presents no new experimental or clinical results.

research Biologic Therapies and Small-Molecule Inhibitors for Dissecting Cellulitis of the Scalp: A Systematic Review

April 2026 in “Dermatology and Therapy”

This study reviews the efficacy and safety of advanced therapies like TNFα inhibitors and IL-17/IL-23 inhibitors for dissecting cellulitis of the scalp, finding TNFα inhibitors particularly effective for severe or refractory cases, although prospective validation is needed for early intervention benefits.

A Systematic Review of Tumor Necrosis Factor-α Blockers, Anti-Interleukins, and Small Molecule Inhibitors for Dissecting Cellulitis of the Scalp Treatment

research A systematic review of tumor necrosis factor-α blockers, anti-interleukins, and small molecule inhibitors for dissecting cellulitis of the scalp treatment

May 2025 in “Orphanet Journal of Rare Diseases”

This review suggests that immunomodulators, including TNF-α blockers and IL inhibitors, may improve symptoms of moderate-to-severe dissecting cellulitis of the scalp, but their effects on hair regrowth and scarring remain unclear.

research A Small Molecule Inhibitor Partitions Two Distinct Pathways for Trafficking of Tonoplast Intrinsic Proteins in Arabidopsis

35 citations , September 2012 in “PloS one”

This study found that in Arabidopsis seedlings, tonoplast intrinsic proteins are targeted to the vacuole via at least two pathways, including pathways with differing sensitivity to a chemical inhibitor that affect root hair growth and PIN2 targeting.

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Community Join

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community How come Dut doesn’t cause more brain problems than fin if it inhibits Type 1 5AR?

in Finasteride/Dutasteride 22 upvotes 2 years ago

Dutasteride and finasteride have similar risk profiles despite Dutasteride blocking more types of 5AR in the brain. Some users report no mood issues with either drug, and it is suggested that Dutasteride's larger molecular size may limit its ability to cross the blood-brain barrier.

community UCLA scientists found a molecule — PP405 — that wakes up sleeping hair follicles and tells them, “Do your job.”

1350 upvotes 1 year ago

PP405 is a promising molecule that may reactivate dormant hair follicles, potentially offering a new treatment for hair loss. It is in phase 2 trials, with possible availability between 2027 and 2030.

community Androsterone as a Neurosteroid Replacement Strategy for 5α-Reductase Inhibitor–Associated Sexual and Affective Dysfunction

in Research/Science 36 upvotes 2 months ago

Androsterone may help with sexual and affective dysfunction from finasteride by replacing disrupted neurosteroids without increasing androgenic side effects. Controlled testing is needed to confirm its effectiveness and safety.

community We need actual hair loss studies on Epristeride

in Research/Science 6 upvotes 1 year ago

Epristeride is a selective 5 alpha reductase type 2 inhibitor that may reduce scalp DHT similarly to finasteride, with potentially fewer side effects. It is suggested that combining epristeride with finasteride or dutasteride could enhance hair loss treatment effectiveness.

community Rosemary oil's potency as a dht blocker

in Research/Science 65 upvotes 2 years ago

Rosemary extract showed high inhibitory activity against DHT, similar to finasteride and dutasteride, but the conversation includes skepticism about its effectiveness in humans since the study was done on mice and rosemary oil is often considered ineffective based on personal experiences. Some suggest trying rosemary oil alongside other treatments, while others emphasize the difference between the extract used in the study and the oil.

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Learn

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learn PP405

mitochondrial pyruvate carrier (MPC) inhibitor by Pelage in early trials

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Stem Cell Factor

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