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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.

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

This study by Gao et al. reports that two nonsteroidal selective androgen receptor modulators, S1 and S4, demonstrated tissue-selective actions in rats, suppressing prostate growth while maintaining muscle growth without altering hormone levels.

This review discusses the potential of lecithin organogels for improving topical drug delivery and presents no new experimental results; the authors highlight their stability and low skin irritancy as advantages.

This study examined the subcutaneous structures in forehead creases using cadavers and observed that dense fibrous structures connecting the dermis to the frontalis muscle, as well as specific epidermal and dermal characteristics, may contribute to the formation of these creases.

This study found that Merkel cell clusters require Frizzled6 signaling for their polarity information, while other hair follicle-associated structures align their orientation based on the hair follicle itself.

This study found that several newly synthesized dihydrobenzopyran compounds inhibited insulin secretion and had vasorelaxant activity, with some more potent than reference KATP channel activators, though compound 21 functioned as a Ca2+ entry blocker.

This study found that a solution containing 0.5% Camellia japonica placenta extract increased scalp moisture and reduced sebum content, dead keratin, and erythema in adult females, suggesting potential as a scalp treatment.

This review summarizes the roles of matricellular proteins in skin stem cell niches, highlighting their contribution to stem cell fate, self-renewal, and potential implications for wound healing and aging.

This report describes a rare case of angiokeratomas on both the upper eyelids and scrotum, adding to the limited literature on eyelid occurrences and discussing potential causes.

This study developed in vitro methods to regenerate hair follicles and erector muscles by mimicking their native structures and mechanical conditions, reconstructing hair follicle-like structures and forming muscle-like tissues.

This study demonstrates that PAD1 and PAD3 are involved in hair follicle differentiation, while PAD1 and PAD2 may play a role in the physiology of sweat glands and arrector pili muscles.

The document explains how hair follicles develop, their structure, and how they grow.

This study achieved regeneration of hair follicle-like structures and erector muscle of hair in vitro by simulating cellular organization and applying mechanical stimuli.

This study found that isolated hair follicle outer root sheaths from mice can regenerate new dermal papillary structures in vitro, with stem cells and neutrophils playing key roles in the regeneration process.

Caloric restriction improves skin and fur structure but can cause muscle loss and movement issues.

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.

In this study, researchers developed a three-dimensional ultrastructural analysis tool using serial block-face scanning electron microscopy to reveal detailed nerve networks and muscle structures in human skin tissues, demonstrating the technique's potential to study structural changes in aging or disease.

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 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 article discusses the structures surrounding hair follicles and introduces aspects like follicle groups and the dermal sheath, but it reports no new research findings.

Researchers observed that dutasteride and finasteride caused structural changes in the penises of both control and hypertensive rats, with dutasteride having a more pronounced effect on the corpus cavernosum.

This article describes the structure of ovine interdigital sinuses using scanning electron microscopy, highlighting features such as dense secretory material, hair presence, and classical apocrine secretion characteristics.

This study detailed the skin structure of Chegu goats, highlighting the presence of two types of hair follicles, with primary follicles associated with sweat glands and other structures.

In this study, the researchers reported the detailed anatomical structure of horse skin, including the composition and organization of the epidermis, dermis, and associated glands and follicles.

This study examined the age-related changes in the dermal structure of goat skin, providing baseline data on its histomorphology, histochemistry, and histoenzymology.

This study found that platelet-rich plasma treatment significantly improved erectile function and restored neural structures in aged rats with erectile dysfunction, suggesting potential benefits for geriatric patients.

This study used integrated single-cell chromatin and transcriptomic analyses in developing mouse skin to uncover gene networks involved in skin lineage specification and identified Mef2c+ upper fibroblasts as potential precursors to certain muscle-like structures, with cross-species findings in human skin.

This study found that skin fibroblasts in mice arise from two distinct lineages which contribute differently to dermal structure and repair, impacting hair follicle formation during wound healing.

Long-term use of a certain medication can worsen erectile function in aged rats by damaging penile muscle cells.