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This chapter discusses the structure and function of the skin, detailing its protective roles and the layers that comprise it, but reports no new research findings.

This article reviews gaps in our understanding of molecular events in hair follicle growth, focusing on keratin synthesis and protein oxidation, but reports no new findings.

This study investigated the immunohistochemical characteristics of keratin proteins in epidermal appendages, finding variable staining patterns in different skin structures and tumor cells, which suggests differences in keratinization.

This review discusses the evidence for a cause-and-effect relationship between scalp condition and hair condition, and reports no new clinical results from trials.

This review reports two new cases of porokeratotic eccrine and hair follicle nevus and analyzes all known cases in the Spanish and English literature, suggesting a link to a GJB2 gene mutation.

This article reviews the classification and complexity of keratin protein groups in hair follicles, but reports no new experimental results on their transcriptional events.

This review explores the immunological aspects of epidermal differentiation in loricrin knockout mice, offering insights into keratinization and potential intrinsic factors affecting immune function, but provides no new clinical findings.

This study found that the distribution of desmogleins is associated with specific types of keratinization and hair anchorage, as well as hypotrichosis.

This review discusses isotretinoin's effectiveness against severe acne vulgaris and its associated side effects, including teratogenicity and hair loss, but it reports no new experimental results.

This chapter reviews the chemistry of keratin fibers, which are essential for understanding the structural stability and functionality of mammalian hair and other similar biological materials.

This article describes Adamson's fringe and its role in Tinea capitis, incorporating historical context and Kligman's validation of Adamson's observations, but reports no new clinical results.

This report presents the first known case of ulerythema ophryogenes in a 28-year-old male in Saudi Arabia.

In this study, two methotrexate-loaded liquid crystal formulations for topical application showed immunomodulatory effects and induced skin changes in mice with imiquimod-induced psoriasis.

This article presents a case of Olmsted syndrome in a 5-year-old boy, adding to the limited number of reported cases of this rare keratinization disorder.

This study observed that the keratinization pattern of trichilemmal cysts in two Japanese women may originate from the proliferation of the outer root sheath in the follicular isthmus of anagen hairs.

The Naked gene in mice causes abnormal sebaceous glands and disrupts hair follicle organization.

This case report describes an 8 cm giant pilomatricoma on a 67-year-old man's scalp, revealing distinct transcriptional patterns related to hair follicle factors and keratin through spatial gene expression analysis.

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

The document outlines criteria to identify and differentiate neoplasms based on follicular characteristics.

This study suggests that fish oil, specifically its components EPA and DHA, play a beneficial role in promoting skin health by supporting epidermal growth and reducing proinflammatory cytokines.

This study found that melatonin enhanced whisker growth in vitro and identified MT1 receptor presence in the granular layer of mouse epidermis and the outer root sheath, suggesting potential for hair growth treatment.

This study found that VEGF-deficient keratinocytes can form tumors using different aneuploidy and signaling patterns, highlighting VEGF's role beyond angiogenesis in tumor cell growth and survival.

This paper reviews hidradenitis suppurativa, comparing its clinical and histopathological characteristics to acne, questioning the proposed link to terminal hair follicles, and reports no new results.

This review discusses the effectiveness and risks of acitretin in treating various skin conditions, highlighting its teratogenic potential and the necessary precautions for its use.

Azelaic acid may help treat acne by killing bacteria, reducing inflammation, and preventing clogged pores.

In this study, researchers analyzed hair follicle development in Yongqing Rex rabbits, finding dynamic changes in fur thickness, coat density, and hair structure across 1 to 6 months, along with fluctuations in follicle density and gene expression linked to hair growth and quality.

This study used single-cell transcriptomic analysis to identify a specific cell population in acne patients' non-lesional skin, providing evidence for the comedone switch hypothesis by suggesting a shift towards infundibular differentiation at the expense of sebaceous gland maintenance.

This study developed a new method using ultrahigh-power sonication and mass spectrometry to improve protein extraction from hair shafts, identifying 239 differentially expressed proteins related to fetal growth restriction, which were validated as potential noninvasive biomarkers for perinatal diagnostics.

This literature review reports that multivitamin supplementation can enhance hair density and quality in people with suboptimal nutritional status but warns that excessive intake of certain vitamins and minerals may cause hair loss.

This review suggests that the inner root sheath of human hair follicles may have broader regulatory roles beyond structural support, potentially impacting processes like folliculogenesis, anagen phase regulation, and immunomodulation.