vitamin A
Research
20 / 1000+ results
research Vitamin D Receptor: Molecular Signaling and Actions of Nutritional Ligands in Disease Prevention
This study identified new dietary ligands for the human vitamin D receptor, including curcumin and gamma-tocotrienol, which may influence its biological functions.
research Vitamin D and the Skin: Focus on a Complex Relationship
This review explores the impact of vitamin D deficiency on the skin from a dermatological perspective, but reports no new clinical results.
research The Role of Vitamins and Minerals in Hair Loss: A Review
This review discusses the potential role of vitamins and minerals in managing non-scarring alopecia but reports no clinical results; the authors advocate for further controlled trials to explore these relationships.
research Glandular Metaplasia of Hair Follicles and Other Responses to Vitamin A Excess in Cultures of Rodent Skin
This study found that excess vitamin A in organotypic cultures of embryonic mouse skin led to abnormal hair follicle development and glandular metaplasia, unlike in untreated controls that showed normal differentiation.
research Case Report: Vitamin A Toxicity and Hypercalcemia
This study found that the most likely cause of hypercalcemia in a patient with symptoms of hypervitaminosis A and a history of chronic vitamin A ingestion was vitamin A toxicity.
research Modulatory Role of Vitamins A, B3, C, D, and E on Skin Health, Immunity, Microbiome, and Diseases
In this review, researchers explored the roles of vitamins A, B3, C, D, and E in skin immunity, highlighting their potential as therapeutics for skin diseases due to their antioxidant, anti-inflammatory, and antimicrobial properties.
research Atrophic Telogen Effluvium from Cytotoxic Drugs and a Randomized Controlled Trial to Investigate the Possible Protective Effect of Pretreatment with a Topical Vitamin D3 Analogue in Humans
This study found no protective effect of topical calcipotriol on hair loss in chemotherapy patients, and the authors propose the term "atrophic telogen effluvium" for this type of hair loss.
research Penetration and Local Effect of Vitamin A on the Skin of the Guinea Pig
This study found that vitamin A dissolved in alcohol penetrates skin quickly and does not impair hair growth, even in large doses, but it does not retard keratinization unlike when dissolved in fatty acids.
research The Use of a Retinoid Receptor Antagonist in a New Model to Study Vitamin A-Dependent Developmental Events
In this study, a specific retinoic acid receptor antagonist caused severe craniofacial anomalies in mouse fetuses when administered early in pregnancy, but not limb anomalies, highlighting developmental stage-specific roles of retinoic acid.
research Safety of High-Dose Vitamin A
This study observed that high-dose retinol palmitate was well-tolerated in resected stage I lung cancer patients, though it raised concerns about potential impacts on lipid metabolism due to elevated gamma-GT levels and triglycerides.
research Vitamin A Toxicity: When One a Day Doesn't Keep the Doctor Away
This case report describes a 60-year-old male with vitamin A toxicity leading to severe liver disease and symptoms that resolved following liver transplantation, suggesting transplantation as a treatment option for noncirrhotic portal hypertension when symptoms do not improve after stopping vitamin A.
research Combined Effect of High-Dose Vitamin A, Vitamin E Supplementation, and Zinc on Adult Patients with Diabetes: A Randomized Trial
This study found that high-dose vitamin A and E supplementation with zinc may improve glycemic control and beta-cell function in patients with type 2 diabetes, compared to no supplements.
research Histochemical Evidence of Mucosubstances in the Metaplastic Epidermis and Hair Follicles Produced In Vitro in the Presence of Excess Vitamin A
This study found that excess vitamin A in organ cultures of mouse embryos led to significant changes in epidermis and hair follicles, altering morphogenesis and polysaccharide distribution.
research Dietary Vitamin A Regulates Wingless-Related MMTV Integration Site Signaling to Alter the Hair Cycle
This study found that feeding mice high levels of dietary vitamin A increased WNT signaling, which activated hair follicle stem cells and may have accelerated alopecia areata progression.
research The Stability of Vitamin A-Induced Metaplasia of Mouse Vibrissa Follicles In Vitro
This study found that excess vitamin A induced stable glandular morphogenesis and mucous metaplasia in embryonic mouse vibrissa follicles, even after switching to standard medium.
research Skin Hyperpigmentation and Increased Angiogenesis Secondary to Vitamin B12 Deficiency in a Young Vegetarian Woman
Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
research Oral Vitamin A as an Adjunct Treatment for Canine Sebaceous Adenitis
In this study, dogs with sebaceous adenitis were treated with oral vitamin A, but responses varied widely, showing improvements in some cases while others experienced no benefit.
research Vitamin A in Skin and Hair: An Update
This review discusses new research on the role of retinoids in skin and hair health and reports no clinical results.
research Role of Vitamin D in Hair Loss: A Short Review
This review discusses vitamin D's role in hair follicle biology and its association with hair loss but reports no conclusive evidence for its effectiveness as a treatment, indicating the need for further studies.
research Vitamin D and the Skin: A Review for Dermatologists
This review discusses the relationship between vitamin D and various skin diseases, highlighting recent findings on its role and the importance of assessing and correcting vitamin D levels, but reports no new clinical results.