research Meis1 Regulates Epidermal Stem Cells and Is Required for Skin Tumorigenesis
Meis1 is crucial for skin health and tumor development.
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research Mucocutaneous Manifestations in Children with Human Immunodeficiency Virus Infection
Children with HIV often have skin problems that can indicate the severity of their immune system damage.
research Acute Sensitivity of the Oral Mucosa to Oncogenic K-ras
Oncogenic K-ras causes rapid cancerous changes in the mouth's lining.
research Connexin 26 (GJB2) Mutations in Keratitis–Ichthyosis–Deafness Syndrome Presenting with Squamous Cell Carcinoma
Connexin-26 gene mutations may increase cancer risk in KID syndrome patients.
research Incidental Syringomas of the Scalp in a Patient with Scarring Alopecia
A woman with unexplained hair loss was found to have harmless skin tumors and a scarring hair loss condition, but the tumors didn't cause the hair loss.
research The Cat With Alopecia
Cats lose fur due to various reasons, including allergies, infections, genetics, hormones, diet, cancer, stress, and some conditions are treatable while others are not.
research Treatment of Diseases Associated with Cicatricial Alopecia
The document concludes that there are various treatments for diseases linked to scarring hair loss, especially for primary scarring alopecia.
research Skin Fibroblast Heterogeneity and Plasticity Are Determined by the Local Niche
Mouse skin fibroblasts vary in function and adaptability based on their environment.
research Scalp Cooling to Prevent or Reduce Chemotherapy-Induced Alopecia
Scalp cooling can help prevent or reduce hair loss from chemotherapy.
research Clinicopathological Study of Discoid Lupus Erythematosus
Discoid Lupus Erythematosus is more common in women aged 31-40, often worsened by sunlight, and confirmed by specific lab tests.
research Dermoscopy of Lymphoplasmacellular Erosive Dermatitis of the Scalp and Its Similarities to Lymphoplasmacellular Balanitis of Zoon
Scalp skin condition LEDS has similar features to Zoon's balanitis, a mucosal skin disorder.
research Spermidine/Spermine-N1-Acetyltransferase: A Key Metabolic Regulator
Spermidine/spermine-N(1)-acetyltransferase (SSAT) was identified as a crucial enzyme regulating cellular polyamine content, impacting normal and neoplastic growth, ion channel regulation, and potentially cancer chemotherapy. SSAT activity was highly regulated and could be induced by various stimuli, affecting polyamine homeostasis and linking polyamine metabolism to lipid and carbohydrate metabolism. Increased SSAT activity led to a futile cycle consuming ATP and acetyl-CoA, and was associated with adverse effects such as pancreatic cell death, tissue growth blockage, behavioral changes, and hair loss. SSAT also interacted with proteins like hypoxia-inducible factor-1 alpha and NF-kappaB, though the exact mechanisms were unclear. While SSAT was considered a potential target for diseases beyond cancer, its broad physiological effects necessitated careful targeting to avoid toxicity.
research Neutrophil Gelatinase-Associated Lipocalin Is a Marker for Dysregulated Keratinocyte Differentiation in Human Skin
NGAL indicates abnormal skin cell differentiation.
research Odontogenic Keratocysts Arise from Quiescent Epithelial Rests and Are Associated with Deregulated Hedgehog Signaling in Mice and Humans
Odontogenic keratocysts are caused by abnormal Hedgehog signaling and can lead to tooth and bone issues.
research Skin Features in Myotonic Dystrophy Type 1: An Observational Study
People with Myotonic Dystrophy type 1 are more likely to have certain skin conditions, but not more likely to get skin cancer.
research Skin Problems in the Long-Distance Runner 2500 Years After the Battle of Marathon
Runners often face skin problems like blisters and infections, and both prevention and early treatment are important.
research Virilization from Partner's Use of Topical Androgen in a Reproductive-Aged Woman
A woman's virilization symptoms were caused by her partner's use of testosterone cream, which resolved after they separated.
research Endometrioid Adenofibroma Arising in an Endometriotic Cyst
A woman's pelvic pain and bleeding led to finding and successfully treating a rare benign tumor in her reproductive system.
research A Rare Cause of Hyperandrogenism in Postmenopausal Women: Ovarian Stromal Hyperplasia
Ovarian stromal hyperplasia can cause high testosterone in postmenopausal women and is treated by removing the ovaries.
research Hair Loss and Polyposis in Cronkhite-Canada Syndrome
Prednisone treatment helped a woman with Cronkhite-Canada syndrome recover from hair loss and digestive issues.
research C-Myc Activation in Transgenic Mouse Epidermis Results in Mobilization of Stem Cells and Differentiation of Their Progeny
c-Myc activation in mouse skin increases sebaceous gland growth and affects hair follicle development.
research Male Accessory Sex Glands
Male accessory sex glands in rats rarely develop tumors and respond to hormones.
research Dermatologic Manifestations of Human Immunodeficiency Virus Infection
HIV can cause unusual and severe skin problems that are hard to treat.
research Hirsutism: Evaluation and Treatment
Excessive hair growth can be assessed by history, exam, and blood tests, and treated with medication like dexamethasone, birth control pills, and spironolactone.
research Feline Lymphangiosarcoma – Definitive Identification Using a Lymphatic Vascular Marker
Lymphangiosarcoma was confirmed in cats with specific skin symptoms using a lymphatic marker.
research Skin-Specific Expression of a Truncated E1a Oncoprotein Binding to p105-Rb Leads to Abnormal Hair Follicle Maturation Without Increased Epidermal Proliferation
In this study, researchers investigated the effects of a mutant Adenovirus E1a oncoprotein, NTdl646, on keratinocyte growth and differentiation in transgenic mice. The protein was expressed specifically in the skin using a keratin 5 promoter, resulting in two lines of mice with abnormal hair phenotypes, including short, crooked hair shafts and dystrophic or absent inner root sheaths. Despite these hair follicle maturation disturbances, the interfollicular epidermis remained normal, and there was no increase in spontaneous or chemically induced skin tumors. The study concluded that while the transgene disrupted keratinocyte maturation, it did not lead to increased epidermal proliferation or neoplastic growth.
research Induction of Ornithine Decarboxylase in Specific Subpopulations of Murine Epidermal Cells Following Multiple Exposures to 12-O-Tetradecanoylphorbol-13-Acetate, Mezerein, and Ethyl Phenylpropriolate
The study investigated the effects of multiple exposures to 12-O-tetradecanoylphorbol-13-acetate (TPA), mezerein, and ethyl phenylpropriolate (EPP) on murine epidermal cells, focusing on the induction of ornithine decarboxylase (ODC) activity. While single applications of these agents caused similar hyperplasia and ODC induction, multiple treatments revealed significant differences in ODC activity, with TPA and mezerein inducing more than EPP. Immunocytochemical analysis showed distinct patterns of ODC-positive cells, with TPA prominently affecting perifollicular cells, mezerein affecting both interfollicular and perifollicular areas, and EPP affecting only interfollicular cells. Flow cytometry identified three keratinocyte subpopulations, with TPA causing the expansion of an intermediate-sized subpopulation not seen with EPP or mezerein. The findings suggested that TPA, a potent tumor promoter, selectively expanded a keratinocyte subpopulation hyperinducible for ODC, potentially important for neoplastic transformation, while mezerein and EPP were less effective in this regard.
research Hair Keratin KRT81 Is Expressed in Normal and Breast Cancer Cells and Contributes to Their Invasiveness
The hair keratin gene KRT81 is found in both normal and breast cancer cells and helps them invade surrounding tissues.
research Cronkhite-Canada Syndrome: Report of an Unusual Case
The report described a unique case of Cronkhite-Canada syndrome with unusual polyps and an association with multiple myeloma.
research Madarosis, Milphosis, Eyelash Trichomegaly, and Dermatochalasis: Conditions Affecting the Periocular Area
The document concludes that changes in eyelashes and eyelid skin can indicate various local and systemic diseases.