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Nephronectin helps attach muscle cells to hair follicles.

This review discusses pharmacologic treatment options for muscle-related pain conditions and notes that there is strong evidence for the efficacy of tricyclic antidepressants and muscle relaxants in specific myofascial pain syndromes, but not universally.

In a study on muscle regeneration in mice, researchers found that platelet-secreted CXCL7 is crucial for recruiting neutrophils to injury sites, aiding early muscle repair and optimal regrowth, suggesting potential therapeutic uses for boosting muscle healing.

This study describes the anatomy of arrector pili muscles in scalp hair follicular units, proposing a model where a single muscle structure is shared by all follicles within a unit.

This study revealed that in androgenic alopecia, the proximal attachment of the arrector pili muscle to the hair follicle is often lost or significantly reduced.

This study found that epidermal stem cells in nonglabrous skin are connected to the distal end of the arrector pili muscle, which may play a role in epidermal renewal and wound healing.

This study found that a shampoo with a selective TAAR agonist reduced hair shedding during brushing by 31% in women and contracted the arrector pili muscle.

This study describes how arrector pili muscles form a single muscular structure shared by all hair follicles within a follicular unit at the isthmus level in scalp skin.

This review examined mechanisms regulating muscle repair, highlighting disruptions in aging and chronic diseases like Duchenne muscular dystrophy and diabetes. It noted that chronic inflammation and metabolic dysfunction hinder effective regeneration and discussed emerging therapies, suggesting multi-target approaches could be promising despite limited clinical evidence.

In this study, the researchers explored how the loss of structural integrity in hair follicles due to reduced α-SMA expression in the vertex area may contribute to androgenetic alopecia.

This study found that depressed individuals had higher levels of sodium and potassium in their hair and lower antidiuretic hormone levels, similar to changes observed in weightless conditions experienced by astronauts.

This study found that arrector pili muscles formed by Sonic Hedgehog signaling play a critical role in maintaining sympathetic nerve connections to hair follicle stem cells, influencing hair regeneration, with implications for hair loss treatments.

This study found that the circadian clock in mouse skin regulates cell proliferation and affects sensitivity to UVB-induced DNA damage, with potential implications for understanding human skin cancer risk.

This study found that loss of contact between the arrector pili muscle and the hair follicle bulge may explain why hair loss in male and female pattern baldness is largely irreversible, unlike in alopecia areata.

This study observed that in mouse fetuses, reticular contraction by actomyosin is involved in dermal regeneration, and differences in actin and α-SMA localization may determine the switch between regeneration and scar formation, suggesting potential insights for wound regeneration therapy.

In this research, the author hypothesizes that curly hair is influenced by the contraction of the Arrector Pili muscle, suggesting that its relaxation through specific treatments could potentially modulate hair follicle curvature, but further studies are needed to confirm this mechanism.

This study examined the vasorelaxant effects of two similar alkaloids, chloroquine and cinchonine, in a model of smooth muscle contractions induced by phenylephrine. Results are not reported in the abstract.

This study presents additional data suggesting that the absence of nerve endings in certain segments of human hair follicles influences the asymmetrical distribution of electrical charges, as indicated by no precipitation of Potassium Ferricyanide crystals.

This overview describes the Dermatologic Surgery journal's comprehensive coverage of dermatologic surgical procedures, but it reports no new research findings.

This study reports that a new topical solution, AB-102, containing a high concentration of a weak α1 agonist, significantly reduces hair shedding during brushing by up to 77% without causing cardiac or hemodynamic adverse events.

This article discusses various disorders of the hair erector muscle, compiling conditions that involve it passively or actively, but reports no new clinical findings.

In this case report, high-dose intravenous methylprednisone followed by oral prednisolone improved painful muscle cramps in a young man unresponsive to other treatments, suggesting an autoimmune mechanism may be involved.

This study observed sexually dimorphic effects of reduced Rdh10 on energy metabolism and muscle function in mice, with males experiencing decreased endurance and females showing increased endurance on a high-fat diet.

This review compiles current research on the role of long non-coding RNAs in regulating muscle growth and regeneration processes, particularly their influence on Duchenne muscular dystrophy, and reports no new clinical results.

Nitrendipine and nifedipine effectively block muscle contractions, while papaverine relaxes them and minoxidil needs high amounts to work.

This study conducted a bibliometric analysis of non-muscle invasive bladder cancer research, finding increased publications over two decades, with leading contributions from the United States and European institutions.

This study found that the S100A4/NMIIA axis contributes to glioblastoma progression by recruiting and promoting migration of GBM cells along blood vessels, correlating with worse patient outcomes.

This study concluded that the expression of clock genes, specifically BMAL1, in hair follicles is linked to circadian rhythm, and BMAL1 regulates hair growth.

This study demonstrated that testosterone treatment increases muscle strength and alters body composition in transmen, and the addition of dutasteride does not impair these anabolic effects.