843,776 results match your criteria Skin Malignancies Merkel Cell Carcinoma and Rare Appendageal Tumors* Plastic Surgery


[Diagnosis and therapy of erysipelas: A position paper of the Society Initiative Chronische Wunde (ICW) e. V.]

Dtsch Med Wochenschr 2021 Jun 15;146(12):822-830. Epub 2021 Jun 15.

Klinik für Dermatologie, Venerologie, Allergologie, Universitätsklinik Essen, Essen.

Erysipelas is a bacterial soft tissue infection caused by β-haemolytic streptococci that spreads proximally along the lymphatic system of the skin. The entry sites of the pathogens can be minor injuries or chronic wounds. The diagnosis of erysipelas is made clinically by the spreading eythema and overheating of the skin, the reduced general condition with fever and chills as well as by means of serological inflammation parameters and must be distinguished from numerous differential diagnoses. Read More

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Fathers' Heightened Stress Responses to Recounting their NICU Experiences Months after Discharge: A Mixed Methods Pilot Study.

Am J Perinatol 2021 Jun 15. Epub 2021 Jun 15.

Department of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania.

Objective:  The acute and traumatic events associated with having a newborn who requires admission to the neonatal intensive care unit (NICU) may elicit long-term concerns for parents postdischarge. Cognitive processing of taxing events influences recurring stress responses, which can be inferred via biomarkers such as salivary cortisol (sCort) and skin conductance (SC). In addition, personal narratives provide an important insight into individual perceptions and coping strategies. Read More

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MrgprdCre lineage neurons mediate optogenetic allodynia through an emergent polysynaptic circuit.

Pain 2021 Jul;162(7):2120-2131

Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, United States.

Abstract: Most cutaneous C fibers, including both peptidergic and nonpeptidergic subtypes, are presumed to be nociceptors and respond to noxious input in a graded manner. However, mechanically sensitive, nonpeptidergic C fibers also respond to mechanical input in the innocuous range, so the degree to which they contribute to nociception remains unclear. To address this gap, we investigated the function of nonpeptidergic afferents using the MrgprdCre allele. Read More

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Generation of three human induced pluripotent stem cell sublines (UCLAi005-A, UCLAi005-B and UCLAi005-C) for reproductive science research.

Stem Cell Res 2021 Jun 8;54:102409. Epub 2021 Jun 8.

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

We generated three human induced pluripotent stem cell (hiPSC) sublines from human dermal fibroblasts (HDF) (MZT05) generated from a skin biopsy donated from a previously fertile woman. The skin biopsy was broadly consented for generating hiPSC lines for biomedical research, including unique consent specifically for studying human fertility, infertility and germ cell differentiation. hiPSCs were reprogrammed using Sendai virus vectors and were subsequently positive for markers of self-renewal. Read More

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A novel organ-chip system emulates three-dimensional architecture of the human epithelia and the mechanical forces acting on it.

Biomaterials 2021 Jun 6;275:120957. Epub 2021 Jun 6.

Emulate Inc., 27 Drydock Avenue, 5th Floor, Boston, MA, 02210, USA. Electronic address:

Successful translation of in vivo experimental data to human patients is an unmet need and a bottleneck in the development of effective therapeutics. Organ-on-Chip technology aims to address this need by leveraging recent significant advancements in microfabrication and biomaterials, which enable modeling of organs and their functionality. These microengineered chips offer researchers the possibility to recreate critical elements of native tissue architecture such as in vivo relevant tissue-tissue interface, air-liquid interface, and mechanical forces, including mechanical stretch and fluidic shear stress, which are crucial to recapitulate tissue level functions. Read More

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Delivery of a spheroids-incorporated human dermal fibroblast sheet increases angiogenesis and M2 polarization for wound healing.

Biomaterials 2021 Jun 7;275:120954. Epub 2021 Jun 7.

School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea. Electronic address:

Low cell engraftment is a major problem in tissue engineering. Although various methods related with cell sheets have been attempted to resolve the issue, low cell viability due to oxygen and nutrient depletion remains an obstacle toward advanced therapeutic applications. Cell therapy using fibroblasts is thought of as a good alternative due to the short doubling times of fibroblasts together with their immunomodulatory properties. Read More

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Positional distribution of fatty acids and phospholipid composition in King salmon (Oncorhynchus tshawytscha) head, roe and skin using nuclear magnetic resonance spectroscopy.

Food Chem 2021 Jun 5;363:130302. Epub 2021 Jun 5.

Department of Food Sciences, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand. Electronic address:

This study used a novel extraction method (ETHEX) to extract the lipid content of King salmon head, skin and roe, and determined the lipid profiles using GC-FID, 13C NMR and 31P NMR spectroscopy. On a wet tissue basis, King salmon roe was found to contain the highest amount of phospholipid (26.53 µmol/g) and n-3 fatty acids (43. Read More

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Restoring NAD by NAMPT is essential for the SIRT1/p53-mediated survival of UVA- and UVB-irradiated epidermal keratinocytes.

J Photochem Photobiol B 2021 Jun 12;221:112238. Epub 2021 Jun 12.

DHC Corporation Laboratories, Division 2, 2-42 Hamada, Mihama-ku, Chiba 261-0025, Japan.

Nicotinamide adenine dinucleotide (NAD) is a crucial coenzyme in energy production. The imbalance of NAD synthesis has been found to trigger age-related diseases, such as metabolic disorders, cancer, and neurodegenerative diseases. Also, UV irradiation induces NAD depletion in the skin. Read More

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Silicon influenced ripening metabolism and improved fruit quality traits in apples.

Plant Physiol Biochem 2021 Jun 8;166:270-277. Epub 2021 Jun 8.

Institute of Soil and Water Resources, ELGO-DEMETER, Thessaloniki, 57001, Greece. Electronic address:

The benefits of silicon against abiotic stress in different annual plant species have been described in many studies, however the regulation of ripening of fruit tree crops by silicon remains largely uncharacterized. Therefore, the present study aimed to explore the impact of foliar silicon application in the apple (cv. 'Fuji') fruit ripening traits along with the effect of silicon in the nutrient and metabolic changes in the fully expanded leaves, annual shoots, fruit outer pericarp (peel) and fruit mesocarp (skin) tissues. Read More

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Quantitative Assessment of Age-dependent changes in Porphyrins from Fluorescence Images of Ultraviolet Photography by Image Processing.

Photodiagnosis Photodyn Ther 2021 Jun 12:102388. Epub 2021 Jun 12.

Graduate School of Science and Technology, Keio University, Yokohama, Japan. Electronic address:

Background: Skin is the first line of defense against harmful external environmental factors. Lots of skin flora living on the skin surface deal with skin health care and skin disease treatment and prevention, such as bacteria, which form the unique and complex skin micro-ecological system. Propionibacterium acnes (P. Read More

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Global Reach 2018: nitric oxide-mediated cutaneous vasodilation is reduced in chronic, but not acute, hypoxia independently of enzymatic superoxide formation.

Free Radic Biol Med 2021 Jun 12. Epub 2021 Jun 12.

Department of Kinesiology, University of Texas at Arlington, Arlington, TX, USA. Electronic address:

We tested the hypotheses that 1) cutaneous microvascular function is impaired by acute normobaric and chronic hypobaric hypoxia and 2) that the superoxide free radical (via NADPH oxidase or xanthine oxidase) contributes to this impairment via nitric oxide (NO) scavenging. Local heating-induced cutaneous hyperemia (39°C) was measured in the forearm of 11 male lowlanders at sea level (SL) and following 14-18 days at high altitude (HA; 4340 m in Cerro de Pasco, Peru), and compared to 11 highlanders residing permanently at this elevation. Cutaneous vascular conductance (CVC; laser-Doppler flux/mean arterial pressure) was not different during 39°C [control site: 73 (19) vs. Read More

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Trisomy 21 results in modest impacts on mitochondrial function and central carbon metabolism.

Free Radic Biol Med 2021 Jun 12. Epub 2021 Jun 12.

Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences; Linda Crnic Institute for Down Syndrome, School of Medicine, University of Colorado, Aurora, Colorado, USA. Electronic address:

Down syndrome (DS) is the most common genetic cause of intellectual disability. Mechanistically, oxidative stress and mitochondrial dysfunction are reported to be etiological factors for many of the DS-related comorbidities and have previously been reported in a number of in vitro and in vivo models of DS. The purpose of this study was to test for the presence of mitochondrial dysfunction in fibroblast cells obtained via skin biopsy from individuals with DS, and to assess the impact of trisomy 21 on central carbon metabolism. Read More

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Human oral mucosa cell atlas reveals a stromal-neutrophil axis regulating tissue immunity.

Cell 2021 Jun 9. Epub 2021 Jun 9.

Oral Immunity and Inflammation Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address:

The oral mucosa remains an understudied barrier tissue. This is a site of rich exposure to antigens and commensals, and a tissue susceptible to one of the most prevalent human inflammatory diseases, periodontitis. To aid in understanding tissue-specific pathophysiology, we compile a single-cell transcriptome atlas of human oral mucosa in healthy individuals and patients with periodontitis. Read More

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Subcuticular sutures versus staples for skin closure after primary hip arthroplasty.

Acta Orthop Belg 2021 Mar;87(1):55-64

High-quality and cost-effective health care are highly recommended especially in joint replacement surgeries, particularly in total hip arthroplasty. Therefore, it is indispensable for orthopaedic surgeons to spot the potential areas of quality improvement. Evaluating the efficacy of the different ways of skin closure is an unacknowledged topic. Read More

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The use of cleaning products and its relationship with the increasing health risks during the Covid-19 pandemic.

Int J Clin Pract 2021 Jun 15:e14534. Epub 2021 Jun 15.

Mersin University, Nursing Faculty, Department of Public Helath Nursing.

Objective: The present study aimed to determine the factors affecting the use of cleaning products at the home environment and the frequency of problems during the COVID-19 pandemic.

Materials And Methods: This cross-sectional research was performed online between 30.08. Read More

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Potential use of essential oils in cosmetic and dermatological hair products: a review.

J Cosmet Dermatol 2021 Jun 15. Epub 2021 Jun 15.

Institute of Physics, University of São Paulo, São Paulo, 05508-090, SP, Brazil.

Background: Essential oils have great interest among the increasing demand for herbal cosmetics in the market. They are natural sources of biologically active ingredients due to the wide application of such compounds as well as their particular chemical composition. Several researches have evaluated the effectiveness of these bioactive ingredients for use in cosmeceuticals, mainly in both hair scalp and shaft hair damage repair. Read More

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Alterations of collagen type 1, skin fibroblasts, and macrophages in the scalp following the treatment of 1550-nm erbium glass fractional laser for androgenetic alopecia.

J Cosmet Dermatol 2021 Jun 15. Epub 2021 Jun 15.

Division of Dermatology, Faculty of Medicine, Ramathibodi Hospital, Ratchathewi, Bangkok, 10400, Thailand.

The 1550-nm erbium glass fractional (Er:Glass) laser is one of the new treatment modalities introduced for androgenetic alopecia (AGA), showing a very satisfactory outcome. Various molecules that play roles in wounding, such as fibroblast growth factors, epidermal growth factors, insulin-like growth factors (IGF), and vascular endothelial growth factors, are recognized as the main factors influencing hair growth and the hair cycle. Read More

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Cutaneous long covid.

J Cosmet Dermatol 2021 Jun 15. Epub 2021 Jun 15.

NESMOS Dermatology Department, Sapienza University of Rome, Rome, Italy.

Researchers have defined the term 'long covid' as the inability to recover from the symptoms associated to COVID-19 even after months from the peak of the disease . Fatigue, myalgia, chest pain, shortness of breath, cardiac problems, like post-viral myocarditis, and diarrhea have been reported . Recently, Huang et al. Read More

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Assessment of clinical efficacy of lidocaine/tetracaine 7%/7% peel cream in fractional micro-ablative laser procedure-associated pain for facial skin ageing treatment. A randomized, controlled, single-blind trial.

J Cosmet Dermatol 2021 Jun 15. Epub 2021 Jun 15.

R&D Cantabria Labs Difa Cooper.

Background: Lidocaine/tetracaine 7%/7% peel cream (L/T-pC) is very effective in reducing pain in several dermatological procedures, such as hair or tattoo laser removal or conventional photodynamic therapy associated pain. Fractional laser resurfacing (FLR) is an effective treatment strategy for facial skin ageing. The main drawback of FLR is the procedure-associated pain. Read More

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Effects of Macrophage Regulation on Fat Grafting Survival: Improvement, Mechanisms, and Potential Application A Review.

J Cosmet Dermatol 2021 Jun 15. Epub 2021 Jun 15.

Department of Cosmetic and Plastic Surgery, Oral and Maxillofacial Surgery, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.

Background: Autologous fat grafting has become a popular tool in plastic surgery to solve soft tissue defects and achieve skin rejuvenation, but the volume loss after transplantation remains a disturbing problem. In recent years, some new strategies have improved the outcome to some extent, but the fat graft retention is still far from ideal, so there remains a wide development prospect in this field. Macrophages are closely related to the local microenvironment and tissue regeneration, and their role in fat grafting has been increasingly highlighted. Read More

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Comparison of injectable filler locations in men and women: An age-matched case analysis.

J Cosmet Dermatol 2021 Jun 15. Epub 2021 Jun 15.

Laser & Skin Surgery Center of New York, New York, NY, USA.

In recent years, the popularity of fillers has risen significantly. Traditionally, women have undergone the vast majority of cosmetic procedures, but men have steadily shown increasing interest. Recently, significant research has been dedicated to understanding the anatomic differences between male and female facial structures and their clinical aesthetic implications, especially for filler placement. Read More

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Poly(lactide-co-ε-caprolactone) scaffold promotes equivalent tissue integration and supports skin grafts compared to a predicate collagen scaffold.

Wound Repair Regen 2021 Jun 15. Epub 2021 Jun 15.

Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, Duke University, Durham, North Carolina, USA.

Dermal scarring from motor vehicle accidents, severe burns, military blasts, etc. is a major problem affecting over 80 million people worldwide annually, many of whom suffer from debilitating hypertrophic scar contractures. These stiff, shrunken scars limit mobility, impact quality of life, and cost millions of dollars each year in surgical treatment and physical therapy. Read More

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Internal Magnetic Lengthening and Reconstruction with Free TRAM Flap After Traumatic Transfemoral Amputation: A Case Report.

JBJS Case Connect 2021 06 15;11(2). Epub 2021 Jun 15.

Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, Minnesota.

Case: This is a case of a 41-year-old man who sustained a traumatic proximal transfemoral amputation with loss of adductor function and inadequate soft tissue. Wound closure was achieved with split-thickness skin grafting. Subsequently, femoral lengthening was achieved with an internal magnetic lengthening nail. Read More

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How I Do It: PureWick female external catheter: a non-invasive urine management system for incontinent women.

Can J Urol 2021 Jun;28(3):10669-10672

Department of Urology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA.

Catheter associated urinary tract infections (CAUTIs) are common hospital-acquired infections and remain a significant medical and financial challenge to the healthcare system. Despite this risk, incontinent women may require prolonged catheterization to accurately monitor urine output and prevent skin breakdown. The PureWick Female External Urinary Catheter is a promising non-invasive urine collection system for use in incontinent women that may help reduce CAUTI rates, maintain skin integrity, accurately quantify urine output, and avoid extra healthcare costs. Read More

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Cladophialophora bantiana and Nocardia farcinica infection simultaneously occurring in a kidney transplant recipient: Case report and literature review.

Immun Inflamm Dis 2021 Jun 15. Epub 2021 Jun 15.

Division of Community Internal Medicine, Mayo Clinic Jacksonville, Florida, USA.

Solid organ transplant recipients are at increased risk of acquiring devastating infections with unusual pathogens. Nocardia are aerobic actinomycetes that affect the lungs, brain, skin and soft tissue. Cladophialophora species are dematiaceous fungi that overwhelmingly cause infections in the brain. Read More

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Treatment for grade 4 peripheral intravenous infiltration with type 3 skin tears: A case report and literature review.

Int Wound J 2021 Jun 15. Epub 2021 Jun 15.

Ottawa Hospital Research Institute Clinical Epidemiology Program, Ottawa, Ontario, Canada.

Grade 4 peripheral intravenous infiltration with skin tears has seldom been reported. On 4 August 2020, a 35-year-old female patient was admitted to the emergency department of our hospital because of postprandial abdominal pain for 2 hours. She was diagnosed with a severe acute pancreatitis with type II diabetes mellitus. Read More

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Association of vaping with decreased vascular endothelial growth factor expression and decreased microvessel density in cutaneous wound healing tissue in rats.

Wound Repair Regen 2021 Jun 15. Epub 2021 Jun 15.

Boston University School of Medicine, Boston, Massachusetts, USA.

Vaping is suggested to be a risk factor for poor wound healing akin to smoking. However, the molecular and histologic mechanisms underlying this postulation remain unknown. Our study sought to compare molecular and histologic changes in cutaneous flap and non-flap tissue between vaping, smoking and control cohorts. Read More

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Anetoderma in molluscum contagiosum treated with 10% potassium hydroxide.

Authors:
Shyam B Verma

Australas J Dermatol 2021 Jun 15. Epub 2021 Jun 15.

IN SKIN Clinic, Vadodara, India.

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Assessment of the Prognostic Effect of Blood Urea Nitrogen to Serum Albumin Ratio in Patients with Fournier's Gangrene in a Referral Center.

Urol J 2021 Jun 15. Epub 2021 Jun 15.

Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Purpose: To assess the prognostic effect of blood urea nitrogen to serum albumin ratio in patients with Fournier's gangrene (FG) in a referral center in order to reduce the mortality of FG patients.

Materials And Methods: Patients with FG were admitted and enrolled consecutively in this study from March 2008 to April 2020. Statistical analysis was done to evaluate the differences between the two groups and to identify the best cutoff value to predict mortality and the need for intensive care. Read More

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Metformin reverses the effects of high glucose on human dermal fibroblasts of aged skin via downregulating RELA/p65 expression.

J Physiol Biochem 2021 Jun 15. Epub 2021 Jun 15.

Department of Medical Biology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey.

Metformin has been successfully used as an anti-aging agent but exact molecular mechanisms of metformin in anti-aging remain unknown. Hyperglycemia during skin aging not only causes oxidative damage to cellular macromolecules, like dermal collagen, but also modulates the activation of transcription factor nuclear factor kappa B (NF-kB). We aimed to investigate in vitro effects of high glucose (HG) and metformin treatment on proliferation and apoptosis of human primary dermal fibroblasts (HDFs), and the expression of COL1A1, COL3A1, and RELA/p65 genes. Read More

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