176,239 results match your criteria epidermal


COUMARINS FROM DAPHNE AXILLIFLORA (KEISSL.) POBED. AND THE ANATOMICAL CHARACTERISTICS OF ITS LEAVES AND STEMS.

Georgian Med News 2021 Mar(312):145-149

1Tbilisi State Medical University, Iovel Kutateladze Institute of Pharmacochemistry, Tbilisi, Georgia; 2Laboratoire LASEVE, Université du Québec à Chicoutimi, Département des Sciences Fondamentales, Chicoutimi, Québec, Canada.

The aim of the study was to determine the stable diagnostic traits of a Caucasian endemic plant Daphne axilliflora (Keissl.) Pobed. and study its phytochemical composition. Read More

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RIPK1 regulates cell function and death mediated by UVB radiation and TNF-α.

Mol Immunol 2021 May 5;135:304-311. Epub 2021 May 5.

College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China. Electronic address:

The RIP family plays a key role in mediating cell inflammation, oxidative stress and death. Among them, RIPK1, as an important regulatory factor in the upstream of the NF-κB pathway, is involved in multiple pathways of cell inflammation and death. Epidermal cells constitute the outermost barrier of the human body. Read More

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Alpelisib in combination with everolimus ± exemestane in solid tumours: Phase Ib randomised, open-label, multicentre study.

Eur J Cancer 2021 May 5;151:49-62. Epub 2021 May 5.

Institut Gustave Roussy, Villejuif, France.

Background And Purpose: Combined mTORC1 inhibition with everolimus (EVE) and phosphatidylinositol 3-kinase catalytic subunit p110α blockade with alpelisib (ALP) has demonstrated synergistic efficacy in preclinical models and supports testing the combination of ALP and EVE in the clinical setting. The primary objective was to determine the maximum tolerated dose (MTD)/recommended dose for expansion (RDE) of ALP in combination with EVE and in combination with EVE and exemestane (EXE) and subsequently assess safety, preliminary efficacy and effect of ALP on the pharmacokinetics of EVE and determine the magnitude of the drug-drug interaction.

Patients And Methods: Dose escalation phases were conducted in patients with advanced solid tumours and in postmenopausal women with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC). Read More

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Randialic acid B and tomentosolic acid block formyl peptide receptor 1 in human neutrophils and attenuate psoriasis-like inflammation in vivo.

Biochem Pharmacol 2021 May 5:114596. Epub 2021 May 5.

Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan. Electronic address:

Psoriasis is a long-lasting inflammatory skin disease lacking proper cure. Dysregulated activation of neutrophils is a major pathogenic factor in psoriasis. Formyl peptide receptor 1 (FPR1) triggers neutrophil activation in response to bacteria- or mitochondria-derived N-formyl peptides, but its significance in neutrophilic psoriasis remains unknown. Read More

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Rhabdomyomatous mesenchymal hamartoma presenting as telangiectasia in a 57-year-old man.

J Cutan Pathol 2021 May 8. Epub 2021 May 8.

Razi laboratory, Rasht, Iran.

Rhabdomyomatous mesenchymal hamartoma (RMH) is a rare congenital malformation of the dermis and subcutaneous tissue. Usually, RMH occurs in the midline of the face and neck region. We described a case of RMH presenting as telangiectasia in a 57-year-old man with a history of pityriasis lichenoides chronicus. Read More

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Characterization of a transcription factor SlNAC7 gene from Suaeda liaotungensis and its role in stress tolerance.

J Plant Res 2021 May 8. Epub 2021 May 8.

School of Life Sciences, Liaoning Normal University, Dalian, 116081, China.

NAC (NAM, ATAF1/2, CUC2) transcription factors play important roles in plant growth, development, and responses to abiotic stress. In this study, we cloned an NAC2 subfamily transcription factor gene (SlNAC7) from the halophyte Suaeda liaotungensis K., and conducted a series of studies to determine the characteristics and functions of this gene. Read More

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Clinicopathological and prognostic significance of programmed cell death ligand 1 expression in patients diagnosed with breast cancer: meta-analysis.

Br J Surg 2021 May 8. Epub 2021 May 8.

Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland.

Background: Uncertainty exists regarding the clinical relevance of programmed cell death ligand 1 (PD-L1) expression in breast cancer. This systematic review and meta-analysis evaluated the clinicopathological and prognostic role of PD-L1 in breast cancer.

Methods: A systematic review was performed in accordance with PRISMA guidelines. Read More

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A role for the fusogen eff-1 in epidermal stem cell number robustness in Caenorhabditis elegans.

Sci Rep 2021 May 7;11(1):9787. Epub 2021 May 7.

Department of Life Sciences, Imperial College, London, SW7 2AZ, UK.

Developmental patterning in Caenorhabditis elegans is known to proceed in a highly stereotypical manner, which raises the question of how developmental robustness is achieved despite the inevitable stochastic noise. We focus here on a population of epidermal cells, the seam cells, which show stem cell-like behaviour and divide symmetrically and asymmetrically over post-embryonic development to generate epidermal and neuronal tissues. We have conducted a mutagenesis screen to identify mutants that introduce phenotypic variability in the normally invariant seam cell population. Read More

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Selective sweep for an enhancer involucrin allele identifies skin barrier adaptation out of Africa.

Nat Commun 2021 May 7;12(1):2557. Epub 2021 May 7.

Division of Dermatology, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, 63110, USA.

The genetic modules that contribute to human evolution are poorly understood. Here we investigate positive selection in the Epidermal Differentiation Complex locus for skin barrier adaptation in diverse HapMap human populations (CEU, JPT/CHB, and YRI). Using Composite of Multiple Signals and iSAFE, we identify selective sweeps for LCE1A-SMCP and involucrin (IVL) haplotypes associated with human migration out-of-Africa, reaching near fixation in European populations. Read More

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Metabolome and transcriptome profiling reveals anthocyanin contents and anthocyanin-related genes of chimeric leaves in Ananas comosus var. bracteatus.

BMC Genomics 2021 May 7;22(1):331. Epub 2021 May 7.

College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China.

Background: Ananas comosus var. bracteatus is a colorful plant used as a cut flower or landscape ornamental. The unique foliage color of this plant includes both green and red leaves and, as a trait of interest, deserves investigation. Read More

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Thoracic radiotherapy and concurrent almonertinib for unresectable stage III EGFR-mutated non-small-cell lung cancer: a phase 2 study.

BMC Cancer 2021 May 7;21(1):511. Epub 2021 May 7.

Department of Thoracic Oncology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou Cancer Hospital, Zhejiang University School of Medicine, Hangzhou, 310002, People's Republic of China.

Background: Concurrent chemo-radiotherapy remains the standard treatment in unresectable stage III non-small-cell lung cancer (NSCLC) patients. Several studies have shown a potential value of concurrent epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) with thoracic radiotherapy in EGFR-mutated population, but a high risk of radiation pneumonitis raised a major concern. This study intends to explore the safety and efficacy of concurrent almonertinib, a new third-generation EGFR-TKI, with radiotherapy in locally advanced EGFR-mutated NSCLC patients. Read More

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Monopolar gene electrotransfer enhances plasmid DNA delivery to skin.

Bioelectrochemistry 2021 Apr 17;140:107814. Epub 2021 Apr 17.

Department of Medical Engineering, University of South Florida, Tampa, FL, United States.

A novel monopolar electroporation system and methodologies were developed for in vivo electroporation intended for potential clinical applications such as gene therapy. We hypothesized that an asymmetric anode/cathode electrode applicator geometry could produce favorable electric fields for electroporation, without the typical drawback associated with traditional needle and parallel plate geometries. Three monopolar electrode applicator prototypes were built and tested for gene delivery of reporter genes to the skin in a guinea pig model. Read More

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Targeting lipid metabolism is an emerging strategy to enhance the efficacy of anti-HER2 therapies in HER2-positive breast cancer.

Cancer Lett 2021 May 4. Epub 2021 May 4.

Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy; IFOM, the FIRC Institute of Molecular Oncology, Via Adamello 16, Milan, Italy. Electronic address:

De novo or acquired resistance of cancer cells to currently available Human Epidermal Growth Factor Receptor 2 (HER2) inhibitors represents a clinical challenge. Several resistance mechanisms have been identified in recent years, with lipid metabolism reprogramming, a well-established hallmark of cancer, representing the last frontier of preclinical and clinical research in this field. Fatty Acid Synthase (FASN), the key enzyme required for fatty acids (FAs) biosynthesis, is frequently overexpressed/activated in HER2-positive (HER2+) breast cancer (BC), and it crucially sustains HER2+ BC cell growth, proliferation and survival. Read More

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Neuroglian regulates Drosophila intestinal stem cell proliferation through enhanced signaling via the epidermal growth factor receptor.

Stem Cell Reports 2021 May 5. Epub 2021 May 5.

Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA. Electronic address:

The Drosophila intestine is an excellent system for elucidating mechanisms regulating stem cell behavior. Here we show that the septate junction (SJ) protein Neuroglian (Nrg) is expressed in intestinal stem cells (ISCs) and enteroblasts (EBs) within the fly intestine. SJs are not present between ISCs and EBs, suggesting Nrg plays a different role in this tissue. Read More

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Topical emollient for preventing infection in preterm infants.

Cochrane Database Syst Rev 2021 May 7;5:CD001150. Epub 2021 May 7.

Centre for Reviews and Dissemination, University of York, York, UK.

Background: Breakdown of the developmentally immature epidermal barrier may permit entry for micro-organisms leading to invasive infection in preterm infants. Topical emollients may improve skin integrity and barrier function and thereby prevent invasive infection, a major cause of mortality and morbidity in preterm infants.

Objectives: To assess the effect of topical application of emollients (ointments, creams, or oils) on the risk of invasive infection and mortality in preterm infants. Read More

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Population-based incidence rates and increased risk of EGFR mutated non-small cell lung cancer in Māori and Pacifica in New Zealand.

PLoS One 2021 7;16(5):e0251357. Epub 2021 May 7.

Epidemiology and Biostatistics, University of Auckland, Auckland, New Zealand.

Background: Non-squamous non-small cell lung cancer (NSCLC) patients with Epidermal Growth Factor Receptor (EGFR) mutation benefit from targeted treatments. Previous studies reported EGFR mutation-positive proportions among tested non-squamous NSCLC patients. However, incidence rates and population risk of EGFR mutation-positive and EGFR mutation-negative non-squamous NSCLC have not been assessed. Read More

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Red light emitting diode as an adjuvant treatment for epidermal growth factor receptor inhibitors-induced paronychia.

J Dermatolog Treat 2021 May 7:1-16. Epub 2021 May 7.

Division of Dermatology, Department of Medicine, Faculty of Medicine, Skin and Allergy Research Unit, Chulalongkorn University, Bangkok, Thailand.

We evaluated the efficacy and safety of red light LED as an adjuvant treatment for epidermal growth factor receptor inhibitor-induced paronychia. Eight patients were recruited in this randomized, single-blinded controlled trial. They were randomized to receive red-light on one hand or foot 2-3 times/week for 6 weeks while the contralateral side served as controls. Read More

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Extra-auricular lesions of proliferative and necrotizing otitis externa in three kittens.

Vet Dermatol 2021 May 7. Epub 2021 May 7.

Université de Lyon, VetAgro Sup, UP ICE, Marcy l'Etoile, F-69280, France.

Background: Proliferative and necrotising otitis externa (PNOE) is a rare disorder in cats with poorly understood pathogenesis. Extra-auricular (EA) lesions recently have been mentioned in a textbook and in one case report.

Objectives: To describe EA lesions associated with PNOE in three kittens. Read More

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Blue LED causes autophagic cell death in human osteosarcoma by increasing ROS generation and dephosphorylating EGFR.

J Cell Mol Med 2021 May 7. Epub 2021 May 7.

Department of Orthopedics, Department of Pharmacy, The First Affiliated Hospital of Harbin Medical University, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.

Osteosarcoma (OS) is the most common primary malignant bone tumour in adolescence. Lately, light-emitting diodes (LED)-based therapy has emerged as a new promising approach for several diseases. However, it remains unknown in human OS. Read More

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RAS-association domain family 1A regulates the abnormal cell proliferation in psoriasis via inhibition of Yes-associated protein.

J Cell Mol Med 2021 May 7. Epub 2021 May 7.

State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.

Psoriasis is a chronic, inflammatory skin disease with a high incidence and recurrence; however, its exact pathogenesis and aetiology remain unclear. This study aimed to analyse the effect of the upstream negative regulator RAS-association domain family 1A (RASSF1A) on Yes-associated protein (YAP) in psoriasis. Skin lesions of 22 patients with psoriasis and 19 healthy controls were used. Read More

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POLYGALACTURONASE45 cleaves pectin and links cell proliferation and morphogenesis to leaf curvature in Arabidopsis thaliana.

Plant J 2021 May 7. Epub 2021 May 7.

Hainan Institute of Zhejiang University, Sanya, 572025, China.

Regulating plant architecture is a major goal in current breeding programs. Previous studies have increased our understanding of the genetic regulation of plant architecture, but it is also essential to understand how organ morphology is controlled at the cellular level. In the cell wall, pectin modification and degradation are required for organ morphogenesis, and these processes involve a series of pectin-modifying enzymes. Read More

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Flat scalp melanoma dermoscopic and reflectance confocal microscopy features correspond to histopathologic type and lesion location.

J Eur Acad Dermatol Venereol 2021 May 7. Epub 2021 May 7.

Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy.

Background: Dermoscopy and Reflectance Confocal Microscopy (RCM) features of scalp melanoma according to lesion location and histopathology have not been fully investigated.

Objectives: To reveal dermoscopic and RCM features of scalp melanoma according to lesion location and histopathology.

Methods: We retrospectively retrieved images of suspicious, atypical excised, flat melanocytic lesions of the scalp, assessed on dermoscopy and RCM at five centers, from June 2007 to April 2020. Read More

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RNA in situ hybridization and expression of related genes regulating the accumulation of triterpenoids in Cyclocarya paliurus.

Tree Physiol 2021 May 7. Epub 2021 May 7.

College of Forestry, Nanjing Forestry University, Nanjing 210037, China.

Cyclocarya paliurus, a woody medicinal species in the Juglandaceae, grows extensively in subtropical areas of China. Triterpenoids in the leaves have health-promoting effects, including hypoglycemic and hypolipidemic activities. To understand triterpenoid biosynthesis, transport, and accumulation in C. Read More

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Quantitative analysis of cell-free DNA by droplet digital PCR reveals the presence of EGFR mutations in non-malignant lung pathologies.

Monaldi Arch Chest Dis 2021 May 4. Epub 2021 May 4.

Division of Molecular Genetics and Cancer, Nitte University Centre For Science Education and Research (NUCSER), Nitte (Deemed to be University), Mangalore .

Tyrosine kinase inhibitors (TKIs) targeting epidermal growth factor receptor (EGFR) are effectively used in treatment of non-small cell lung cancer (NSCLC). Mutation profile of tyrosine kinase domain of EGFR determines the eligibility of the patients for tyrosine kinase inhibitor (TKI) therapy. Liquid biopsy, which relies on circulating tumor-derived nucleic acids, has emerged as an effective tool in lung cancer management with proven diagnostic, prognostic and predictive applications. Read More

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Emerging Skin Toxicities in Patients with Breast Cancer Treated with New Cyclin-Dependent Kinase 4/6 Inhibitors: A Systematic Review.

Drug Saf 2021 May 6. Epub 2021 May 6.

Department of Dermatology, San Gallicano Dermatological Institute-IRCCS, Via Elio Chianesi 53, 00144, Rome, Italy.

Three cyclin-dependent kinases 4/6, including palbociclib, ribociclib, and abemaciclib, have been approved for the treatment of patients with hormone receptor-positive and human epidermal growth factor receptor 2-negative advanced breast cancer. The objective of this study was to evaluate the occurrence and clinical spectrum of cutaneous adverse events in patients with breast cancer following therapy with cyclin-dependent kinase 4/6 inhibitors. A systematic literature search was performed in the PubMed, Cochrane, and EMBASE databases up to November 2020 to evaluate studies published from 2015 to 2020. Read More

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Toxic Epidermal Necrolysis-Like Lesions as Cutaneous Manifestation of Acute Methotrexate Toxicity.

Indian Dermatol Online J 2021 Mar-Apr;12(2):340-341. Epub 2020 Sep 28.

Department of Dermatology, R.N.T. Medical College, Udaipur, Rajasthan, India.

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September 2020

Nevus Unius Lateris with Bilateral Oral Mucosal Lesions: An Unusual Presentation.

Indian Dermatol Online J 2021 Mar-Apr;12(2):302-306. Epub 2021 Feb 22.

Department of Dermatology, Venereology and Leprosy, Government Medical College, Amritsar, Punjab, India.

Verrucous epidermal nevi (VEN) are cutaneous hamartomas characterized by keratinocytic hyperplasia. Majority are linear in distribution and tend to follow the Blaschko lines; however, some may have zosteriform (segmental) or systematized distribution involving widespread areas of skin. The systematized ones are further classified into "" when one-half of the body is affected, and "" showing bilateral distribution, both being the uncommon forms. Read More

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February 2021

Factors Predicting the Outcome of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis: A 5-Year Retrospective Study.

Indian Dermatol Online J 2021 Mar-Apr;12(2):258-265. Epub 2021 Mar 2.

Department of Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

Background: Clinicodemographic and laboratory parameters predicting the outcome of Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) may vary among populations owing to genotypic and environmental variations. There is a scarcity of studies evaluating these parameters in Indian population.

Aims: To analyze clinicodemographic and laboratory parameters predicting disease outcome in patients of SJS/TEN. Read More

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