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PubMed Journals Articles About "Insight Into Skin Development Could Lead Better Grafts" RSS

16:10 EDT 15th October 2018 | BioPortfolio

Insight Into Skin Development Could Lead Better Grafts PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Insight Into Skin Development Could Lead Better Grafts articles that have been published worldwide.

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Showing "Insight Into Skin Development Could Lead Better Grafts" PubMed Articles 1–25 of 27,000+

Stratum corneum substantivity: drug development implications.

There are at least 15 factors that influence the ability of chemicals to penetrate the skin. Substantivity is yet another factor and allows penetrants to remain on and in skin for many days. As many skin pathologies involve stratum corneum and require multiple dosing of topicals, understanding substantivity mechanisms may provide insight for topical dosing strategies. Substantivity is also of importance in the development of other consumer products that necessitate adherence to skin, including sunscreens, i...


Histological and mechanical evaluation of antifreeze peptide (Afp1m) cryopreserved skin grafts post transplantation in a rat model.

The objective of this study was to evaluate the use of Afp1m as a cryopreservative agent for skin by examining the transplanted skin histological architecture and mechanical properties following subzero cryopreservation. Thirty four (34) rats with an average weight of 208 ± 31 g (mean ± SD), were used. Twenty four (n = 24) rats were equally divided into four groups: (i) immediate non-cryopreserved skin autografts (onto same site), (ii) immediate non-cryopreserved skin autografts (onto differ...

The Crucial Role of Vascularization and Lymphangiogenesis in Skin Reconstruction.

The treatment of extensive skin defects and bradytrophic wounds remains a challenge in clinical practice. Despite emerging tissue engineering approaches, skin grafts and dermal substitutes are still the routine procedure for the majority of skin defects. Here, we review the role of vascularization and lymphangiogenesis for skin grafting and dermal substitutes from the clinician's perspective.


Microbiome in the Gut-Skin Axis in Atopic Dermatitis.

The microbiome is vital for immune system development and homeostasis. Changes in microbial composition and function, termed dysbiosis, in the skin and the gut have recently been linked to alterations in immune responses and to the development of skin diseases, such as atopic dermatitis (AD). In this review, we summarize the recent findings on the gut and skin microbiome, highlighting the roles of major commensals in modulating skin and systemic immunity in AD. Although our understanding of the gut-skin axi...

A simple and fast dressing for skin grafts: comparison with traditional techniques.

The split-thickness skin graft (STSG) is commonly used for reconstruction of skin and soft tissue defects. For a successful graft, the thin skin must be in close contact with the recipient bed until the graft stabilises. This study introduces a simple and fast dressing technique, and compares it with the traditional tie-over dressing.

Approaches to cutaneous wound healing: basics and future directions.

The skin provides essential functions, such as thermoregulation, hydration, excretion and synthesis of vitamin D. Major disruptions of the skin cause impairment of critical functions, resulting in high morbidity and death, or leave one with life-changing cosmetic damage. Due to the complexity of the skin, diverse approaches are needed, including both traditional and advanced, to improve cutaneous wound healing. Cutaneous wounds undergo four phases of healing. Traditional management, including skin grafts an...

Topographic approach to the long-term effect of solar exposure on facial skin of Korean automobile commuters.

Car drivers are generally exposed to direct sunlight during commuting hours, which may lead to irreversible skin damage; however, topographical analysis for different facial areas has not been reported.

High incidence of late infective endocarditis in bovine jugular vein valved conduits.

Bovine jugular vein (BJV) grafts (Medtronic, Inc, Minneapolis, Minn) are used to restore right ventricle-to-pulmonary artery continuity. Recent studies have associated these grafts with the development of infective endocarditis. The purpose of this study was to report the incidence of endocarditis in BJV grafts.

Skin bioprinting: a novel approach for creating artificial skin from synthetic and natural building blocks.

Significant progress has been made over the past few decades in the development of in vitro-engineered substitutes that mimic human skin, either as grafts for the replacement of lost skin, or for the establishment of in vitro human skin models. Tissue engineering has been developing as a novel strategy by employing the recent advances in various fields such as polymer engineering, bioengineering, stem cell research and nanomedicine. Recently, an advancement of 3D printing technology referred as bioprinting ...

Vitamin D status in adult patients with nonmelanoma skin cancer in Cape Town, South Africa: a cross-sectional study.

Ultraviolet (UV) radiation is the most important environmental risk factor for the development of nonmelanoma skin cancer (NMSC). UV radiation is, however, also vital in the formation of vitamin D in humans. Strict sun protection advised to skin cancer patients may lead to vitamin D deficiency, yet vitamin D may have a protective effect against cancer formation.

Effectiveness of small monitoring skin paddle in free muscle flap for scalp reconstruction.

Monitoring free muscle flaps with skin grafts is difficult. To intensify the monitoring process for this type of flap, a small skin paddle was included in the flap and analyzed its effects.

Adipose-derived stem cells improve full-thickness skin grafts in a rat model.

To investigate the effects of heterologous adipose-derived stem cells (ADSCs) on autologous full-thickness skin grafts, we designed a first-intention healing model using Wistar rats. We harvested and sutured two full-thickness skin grafts in the dorsal recipient beds of 15 rats, randomized into three groups. In the treatment group, 1 × 10ADSCs resuspended in saline solution (200 μL) were administered subcutaneously to the skin graft. The control group received only saline solution subcutaneously, wh...

Skin type differences in solar simulated radiation-induced oxidative stress.

Human skin protects the body from external damage, pathogens and oxidative stress factors such as ultraviolet (UV) radiation. Excessive exposure to UV radiation can lead to an increased production of free radicals and hence to skin damage such as inflammation, premature skin ageing and skin cancer. Beside the UV, the visible (VIS) and near infrared (NIR) regions are also a source of radical production. Half of all free radicals are induced by the VIS+NIR region of the solar spectrum in skin types I-III but ...

Protocols for Full Thickness Skin Wound Repair Using Prevascularized Human Mesenchymal Stem Cell Sheet.

Split thickness skin grafts (STSGs) are one of the standard treatments available for full thickness wound repair when full thickness grafts (FTGs) are not viable, such as in the case of wounds with large surface areas. The donor sites of STSGs may be harvested repeatedly, but STSG transplants are still limited by insufficient blood supply at the early stages of wound healing. Prevascularized human mesenchymal stem cell (hMSC) sheets may accelerate wound healing and improve regeneration by providing preforme...

The vascular morphology of melanoma is related to Breslow index: an in vivo study with dynamic optical coherence tomography.

Malignant melanoma is an aggressive skin cancer, which can lead to metastasis development. Vascularization enhancement is fundamental for tumor growth, worsening the prognosis. Dynamic Optical Coherence Tomography (D-OCT) enables the in vivo evaluation of vascular patterns in skin lesions.

Reconstruction of frontal defects with calvarial grafts.

There are many options for the reconstruction of frontal sinus wall defect resulting from injury, neoplastic lesions and aesthetic deformities. These mainly include autogenous grafts, allogenous grafts, and alloplastic materials. The aim of the present study is to report the advantages of using autogenous calvarial bone grafts over other reconstruction techniques, in the reconstruction of frontal defects.

3D bioprinting of skin tissue: From pre-processing to final product evaluation.

Bioprinted skin tissue has the potential for aiding drug screening, formulation development, clinical transplantation, chemical and cosmetic testing, as well as basic research. Limitations of conventional skin tissue engineering approaches have driven the development of biomimetic skin equivalent via 3D bioprinting. A key hope for bioprinting skin is the improved tissue authenticity over conventional skin equivalent construction, enabling the precise localization of multiple cell types and appendages within...

Comprehensive, multi-modal characterization of an imiquimod-induced human skin inflammation model for drug development.

Imiquimod (IMQ) is often used as topical challenge agent to provoke local skin inflammation. The objective of this study was to develop and refine a rapid, temporary and reversible human skin inflammation model with IMQ for application in clinical drug development. A randomized, vehicle-controlled, open-label, dose-ranging study was conducted in 16 healthy male subjects. IMQ (5 mg) was applied once daily for 72h under occlusion to intact skin (n = 8) or tape stripped (TS) skin (n = 8). Although IMQ alone in...

Human αβ and γδ T Cells in Skin Immunity and Disease.

γδ T lymphocytes maintain skin homeostasis by balancing keratinocyte differentiation and proliferation with the destruction of infected or malignant cells. An imbalance in skin-resident T cell function can aggravate skin-related autoimmune diseases, impede tumor eradication, or disrupt proper wound healing. Much of the published work on human skin T cells attributes T cell function in the skin to αβ T cells, while γδ T cells are an often overlooked participant. This review details the roles played by ...

Cytokine modulation of atopic itch.

Atopic dermatitis (AD) is an inflammatory skin disease characterized by two primary features: relapsing skin lesions and chronic itch. Major advances in our understanding of type 2 immunity have led to new insights into the critical factors that promote the development and persistence of AD-associated skin inflammation. Although inflammation is strongly associated with the development of atopic itch, the precise mechanisms by which itch arises in AD are poorly understood. In this review, we highlight recent...

Venous conduits have superior patency compared to prosthetic grafts for femoro-femoral bypass.

To compare outcomes of externally supported polytetrafluoroethylene (PTFE) grafts and femoral vein as conduits for femoro-femoral crossover grafts.

Use of Dorsal Skin Islands as Firebreak Grafts to the Palm to Reduce the Recurrence Rate of Dupuytren's Contracture.

Dupuytren's pathologic tissue usually involves the palmar skin and rarely infiltrates into the dorsal skin. In this study, we hypothesized that transplantation of a vascularized cutaneous flap harvested from the dorsum of the hand to the palmar skin, under which the pathologic cord existed might be useful for blocking reformation of the pathologic cords and for decreasing the recurrence rate. After removal of the pathologic tissue under the palmar skin, we harvested 2 types of skin islands nourished by the ...

Radial-Artery or Saphenous-Vein Grafts in Coronary-Artery Bypass Surgery.

Background The use of radial-artery grafts for coronary-artery bypass grafting (CABG) may result in better postoperative outcomes than the use of saphenous-vein grafts. However, randomized, controlled trials comparing radial-artery grafts and saphenous-vein grafts have been individually underpowered to detect differences in clinical outcomes. We performed a patient-level combined analysis of randomized, controlled trials to compare radial-artery grafts and saphenous-vein grafts for CABG. Methods Six trials ...

3D skin models for 3R research: the potential of 3D reconstructed skin models to study skin barrier function.

The skin barrier is an important shield regulating the outside-in as well as inside-out penetration of water, nutrients, ions and environmental stimuli. We can distinguish four different barrier compartments, the physical, chemical, immunological and microbial skin barrier. Well-functioning of those is needed to protect our body from the environment. To better understand the function and the contribution of barrier dysfunction in skin diseases, 3D skin or epidermal models are a valuable tool for in vitro st...

Faster wound healing after vascular surgery: negative pressure wound therapy for exposed prosthetic vascular grafts in the groin.

Vascular surgery in the groin is highly susceptible to wound infection (up to about 30%). Wound infections associated with exposed vascular prosthetic grafts are difficult to treat and may lead to acute bleeding or graft failure, requiring amputation of the lower limb in extreme cases. Negative pressure wound therapy is a method to promote wound healing in case of infected vascular grafts. Since there is suspected risk of bleeding, this technique has been adapted with a double-sponge technique in combinatio...


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