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Wound healing diabetes

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https://www.readbyqxmd.com/read/28548370/current-state-of-a-dual-behavior-of-antimicrobial-peptides-therapeutic-agents-and-promising-delivery-vectors
#1
REVIEW
Urszula Piotrowska, Marcin Sobczak, Ewa Oledzka
Microorganism resistance is an important challenge in modern medicine due to the global uncontrolled use of antibiotics. Natural and synthetic antimicrobial peptides (AMPs) symbolize a new family of antibiotics, which have stimulated research and clinical interest as new therapeutic options for infections. They represent one of the most promising antimicrobial substances, due to their broad spectrum of biological activity, against bacteria, fungi, protozoa, viruses, yeast and even tumour cells. Besides, being antimicrobial, AMPs have been shown to bind and neutralize bacterial endotoxins, as well as possess immunomodulatory, anti-inflammatory, wound-healing, angiogenic and antitumour properties...
May 26, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28547073/the-influence-of-low-intensity-he-ne-laser-on-the-wound-healing-in-diabetic-rats
#2
Maha Eissa, Wasil H M Salih
The low-level laser irradiation at certain wavelengths is reported to facilitate the healing process of diabetic wounds. Thus, this study carried out to look for the suitable laser parameters that could speed up the healing process. Fourteen healthy male and female rats were used in which a circular wound with a diameter of 2.5 ± 0.2 cm was created on the dorsum in each rat after injected them with alloxan to induced diabetic. They have been divided into two groups: control group (N = 7) and study group (N = 7) to conduct the study...
May 25, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28546424/topical-erythropoietin-treatment-accelerates-the-healing-of-cutaneous-burn-wounds-in-diabetic-pigs-through-an-aquaporin-3-dependent-mechanism
#3
Saher Hamed, Yehuda Ullmann, Dana Egozi, Aviad Keren, Essam Daod, Omer Anis, Hoda Kabha, Mark Belokopytov, Manal Ashkar, Rona Shofti, Asaph Zaretsky, Michal Schlesinger, Luc Teot, Paul Y Liu
We have previously reported that the topical application of erythropoietin (EPO) to cutaneous wounds in rats and mice with experimentally-induced diabetes mellitus (DM) accelerates their healing by stimulating angiogenesis, reepithelialization, and collagen deposition, and suppressing the inflammatory response and apoptosis. Aquaporins (AQP) are integral membrane proteins whose function is to regulate intracellular fluid hemostasis by enabling the transport of water and glycerol. AQP3 is the AQP that is expressed in the skin where it facilitates cell migration and proliferation and reepithelialization during wound healing...
May 25, 2017: Diabetes
https://www.readbyqxmd.com/read/28545109/hyperbaric-oxygen-therapy-for-wound-healing-in-diabetic-rats-varying-efficacy-after-a-clinically-based-protocol
#4
Johan W van Neck, Bastiaan Tuk, Esther M G Fijneman, Jonathan J Redeker, Edwin M Talahatu, Miao Tong
Hyperbaric oxygen therapy (HBOT) is a clinical treatment in which a patient breathes pure oxygen for a limited period of time at an increased pressure. Although this therapy has been used for decades to assist wound healing, its efficacy for many conditions is unproven and its mechanism of action is not yet fully clarified. This study investigated the effects of HBOT on wound healing using a diabetes-impaired pressure ulcer rat model. Seven weeks after streptozotocin-induced diabetes in rats (n = 55), a pressure ulcer was created on dorsal skin...
2017: PloS One
https://www.readbyqxmd.com/read/28544150/a-randomized-clinical-trial-of-a-human-acellular-dermal-matrix-demonstrated-superior-healing-rates-for-chronic-diabetic-foot-ulcers-over-conventional-care-and-an-active-acellular-dermal-matrix-comparator
#5
Shawn Cazzell, Dean Vayser, Hau Pham, Jodi Walters, Alexander Reyzelman, Brian Samsell, Kimberly Dorsch, Mark Moore
This study compared the efficacy and safety of a human acellular dermal matrix (ADM), D-ADM, with a conventional care arm and an active comparator human ADM arm, GJ-ADM, for the treatment of chronic diabetic foot ulcers. The study design was a prospective, randomized controlled trial that enrolled 168 diabetic foot ulcer subjects in 13 centers across 9 states. Subjects in the ADM arms received one application but could receive one additional application of ADM if deemed necessary. Screen failures and early withdrawals left 53 subjects in the D-ADM arm, 56 in the conventional care arm, and 23 in the GJ-ADM arm (2:2:1 ratio)...
May 24, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28542434/interleukin-6-stimulates-akt-and-p38-mapk-phosphorylation-and-fibroblast-migration-in-non-diabetic-but-not-diabetic-mice
#6
Tsubame Nishikai-Yan Shen, Shigeyuki Kanazawa, Makiko Kado, Kayoko Okada, Lin Luo, Ayato Hayashi, Hiroshi Mizuno, Rica Tanaka
Persistent inflammatory environment and abnormal macrophage activation are characteristics of chronic diabetic wounds. Here, we attempted to characterize the differences in macrophage activation and temporal variations in cytokine expression in diabetic and non-diabetic wounds, with a focus on interleukin (IL)-6 mRNA expression and the p38 MAPK and PI3K/Akt signaling pathways. Cutaneous wound closure, CD68- and arginase-1 (Arg-1)-expressing macrophages, and cytokine mRNA expression were examined in non-diabetic and streptozotocin-induced type 1 diabetic mice at different time points after injury...
2017: PloS One
https://www.readbyqxmd.com/read/28542422/angelica-dahurica-ethanolic-extract-improves-impaired-wound-healing-by-activating-angiogenesis-in-diabetes
#7
Xiao-Na Zhang, Ze-Jun Ma, Ying Wang, Bei Sun, Xin Guo, Cong-Qing Pan, Li-Ming Chen
Abnormal angiogenesis plays an important role in impaired wound healing and development of chronic wounds in diabetes mellitus. Angelica dahurica radix is a common traditional Chinese medicine with wide spectrum medicinal effects. In this study, we analyzed the potential roles of Angelica dahurica ethanolic extract (ADEE) in correcting impaired angiogenesis and delayed wound healing in diabetes by using streptozotocin-induced diabetic rats. ADEE treatment accelerated diabetic wound healing through inducing angiogenesis and granulation tissue formation...
2017: PloS One
https://www.readbyqxmd.com/read/28542370/upregulation-of-tlr4-via-pkc-activation-contributes-to-impaired-wound-healing-in-high-glucose-treated-kidney-proximal-tubular-cells
#8
Jianping Peng, Hang Zheng, Xia Wang, Zhixiang Cheng
Acute kidney injury (AKI) leads to a worse prognosis in diabetic patients compared with prognoses in non-diabetic patients, but whether and how diabetes affects kidney repair after AKI remains unknown. Here, we used scratch-wound healing and transwell migration models to examine whether and how wound healing is affected by high glucose levels in cultured kidney proximal tubular cells (RPTC). The results show that scratch-wound healing and transwell migration were significantly slower in high-glucose-treated kidney tubular cells (30 mM glucose) than in low-glucose-treated cells (5...
2017: PloS One
https://www.readbyqxmd.com/read/28541874/pasteurella-multocida-ecthyma-complicated-by-necrotizing-fasciitis
#9
Nima Milani-Nejad, Kelly Tyler, Carmine A Grieco, Benjamin H Kaffenberger
Necrotizing fasciitis is a serious infection of the skin and soft tissues. Pasteurella multocida is rarely reported to cause necrotizing fasciitis and is associated with high mortality. We describe a female patient with a past medical history of diabetes mellitus and myeloproliferative disorder presenting with bullae and erythema of the right forearm secondary to P. multocida infection after possible cat bite. Despite adequate antibiotic coverage she developed necrotizing fasciitis diagnosed clinically and on diagnostic imaging...
April 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28541016/pedal-arch-patency-and-not-direct-angiosome-revascularization-predicts-outcomes-of-endovascular-interventions-in-diabetic-patients-with-critical-limb-ischemia
#10
Nicola Troisi, Filippo Turini, Emiliano Chisci, Leonardo Ercolini, Pierfrancesco Frosini, Renzo Lombardi, Francesca Falciani, Cristiana Baggiore, Roberto Anichini, Stefano Michelagnoli
BACKGROUND: Aim of this study was to evaluate the impact of pedal arch status and direct-angiosome revascularization (DAR) on clinical outcomes in diabetic patients with foot wounds undergoing endovascular revascularization. METHODS: Between January 2014 and June 2015 93 diabetic patients with foot wounds underwent endovascular revascularization of at least one below-the-knee vessel. Patients were divided into three groups according to the pedal arch status: complete pedal arch (CPA), incomplete pedal arch (IPA) and absent pedal arch (APA)...
May 24, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28540570/magnesium-supplementation-and-the-effects-on-wound-healing-and-metabolic-status-in-patients-with-diabetic-foot-ulcer-a-randomized-double-blind-placebo-controlled-trial
#11
Reza Razzaghi, Farangis Pidar, Mansooreh Momen-Heravi, Fereshteh Bahmani, Hossein Akbari, Zatollah Asemi
Hypomagnesemia is associated with the development of neuropathy and abnormal platelet activity, both of which are risk factors for diabetic foot ulcer (DFU). This study was carried out to evaluate the effects of magnesium administration on wound healing and metabolic status in subjects with DFU. This randomized, double-blind, placebo-controlled trial was performed among 70 subjects with grade 3 DFU. Subjects were randomly divided into two groups (35 subjects each group) to receive either 250 mg magnesium oxide supplements or placebo daily for 12 weeks...
May 24, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28540539/involvements-of-%C3%AE-%C3%AE-t-lymphocytes-in-acute-and-chronic-skin-wound-repair
#12
Peng Xu, Xiujun Fu, Nin Xiao, Yuanyuan Guo, Qing Pei, Yinbo Peng, Yifan Zhang, Min Yao
Wound healing involves three stages including inflammation, proliferation, and tissue remodeling. The underlying mechanisms remain to be further elucidated. The inflammation is characterized by spatially and temporally changing patterns of various leukocyte subsets. It is regarded as the most crucial stage since the inflammatory response is instrumental to supplying various factors and cytokines that orchestrate healing events. As a subtype of T lymphocytes, γδ T cells play an important role in skin homeostasis, tumor immunosurveillance, and wound repair...
May 25, 2017: Inflammation
https://www.readbyqxmd.com/read/28539734/honey-and-health-a-review-of-recent-clinical-research
#13
REVIEW
Saeed Samarghandian, Tahereh Farkhondeh, Fariborz Samini
Honey is one of the most appreciated and valued natural products introduced to humankind since ancient times. Honey is used not only as a nutritional product but also in health described in traditional medicine and as an alternative treatment for clinical conditions ranging from wound healing to cancer treatment. The aim of this review is to emphasize the ability of honey and its multitude in medicinal aspects. Traditionally, honey is used in the treatment of eye diseases, bronchial asthma, throat infections, tuberculosis, thirst, hiccups, fatigue, dizziness, hepatitis, constipation, worm infestation, piles, eczema, healing of ulcers, and wounds and used as a nutritious supplement...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28526214/high-glucose-environment-induced-intracellular-o-glcnac-glycosylation-and-reduced-galectin-7-expression-in-keratinocytes-implications-on-impaired-diabetic-wound-healing
#14
Shu-Mei Huang, Ching-Shuang Wu, Min-Hsi Chiu, Hui-Jun Yang, Gwo-Shing Chen, Cheng-Che E Lan
BACKGROUND: Diabetes is an important global health issue due to its increasing prevalence and association with various complications. Impaired wound healing is a serious complication associated with diabetes that frequently results in infection and amputation. Galectin-7 (Gal-7) has been reported to play an important role during skin wound healing. Previously, we had demonstrated that high glucose environment alters physiologic functions of keratinocytes and contributes to impaired wound healing in diabetic condition...
April 30, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28524000/the-effect-of-a-common-antibiotics-doxycycline-on-non-healing-chronic-wound
#15
Dixon H Xu, Ziwen Zhu, Yujiang Fang
Up to 25% of diabetic patients will develop a diabetic foot ulcer. Chronic wounds such as diabetic foot ulcers often fail to heal with conventional therapies. In recent years, it has been identified that chronic wounds are usually associated with elevated level of matrix metalloproteinases (MMPs). Doxycycline, a cheap tetracycline antibiotic, has been shown to inhibit MMPs both in vitro and in vivo independent of its antimicrobial property. In this review, we provide an overview of the roles of MMPs in the pathogenesis of chronic wounds and explore the potential application of doxycycline as a treatment option in managing chronic wounds such as diabetic foot ulcers...
May 18, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28523994/potential-biomolecules-and-current-treatment-technologies-for-diabetic-foot-ulcer-an-overview
#16
Zenith Khashim, Shila Samuel, Nallusamy Duraisamy, Kathiravan Krishnan
BACKGROUND: Diabetic foot ulceration remains a major challenge is one of the most expensive and a leading cause of major and minor among patients with a diabetic foot ulcer. Hence the purpose of this review emphases on potential molecular markers involved in diabetic ulcer physiology, the efficacy of different types of dressing materials, therapy and newer therapeutic approach like nanoparticles for the of diabetic foot ulcer. METHODS: We conducted a systematic literature reviews search by using Pubmed and other web search...
May 18, 2017: Current Diabetes Reviews
https://www.readbyqxmd.com/read/28522400/impact-of-lysyl-oxidase-g473a-polymorphism-on-diabetic-foot-ulcers
#17
Sivakamasundari Pichu, Jayalalitha Sathiyamoorthy, Selvaraj Vimalraj, Vijay Viswanathan, Suvro Chatterjee
Lysyl oxidase (LOX) is an extra-cellular matrix-modifying enzyme that has been linked to cell proliferation, metastasis, angiogenesis and wound healing. This study was designed to examine the association of LOX gene polymorphism G473A, G>A, (rs1800449) located in exon 1 of the LOX gene in diabetic subjects with and without diabetic foot ulcers (DFU) and its impact of expression on DFU. Genotypic analysis of 906 samples showed a significant increase in the presence of 'A' allele in type 2 diabetes mellitus (T2DM) and DFU when compared to that of control subjects...
May 15, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28520942/emerging-roles-for-micrornas-in-diabetic-microvascular-disease-novel-targets-for-therapy
#18
Yu Zhang, Xinghui Sun, Basak Icli, Mark W Feinberg
Chronic, low-grade systemic inflammation and impaired microvascular function are critical hallmarks in the development of insulin resistance. Accordingly, insulin resistance is a major risk factor for type 2 diabetes and cardiovascular disease. Accumulating studies demonstrate that restoration of impaired function of the diabetic macro- and microvasculature may ameliorate a range of cardiovascular disease states and diabetes-associated complications. In this review, we focus on the emerging role of microRNAs (miRNAs), noncoding RNAs that fine-tune target gene expression and signaling pathways, in insulin-responsive tissues and cell types important for maintaining optimal vascular homeostasis and preventing the sequelae of diabetes-induced end organ injury...
April 1, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/28520219/plasminogen-activator-inhibitor-type-1-as-a-regulator-of-fibrosis
#19
Reyhaneh Rabieian, Maryam Boshtam, Mahshid Zareei, Shirin Kouhpayeh, Aria Masoudifar, Hamed Mirzaei
Fibrosis is known as a frequent and irreversible pathological condition which is associated with organ failure. Tissue fibrosis is a central process in a variety of chronic progressive diseases such as diabetes, hypertension, and persistent inflammation. This state could contribute to chronic injury and the initiation of tissue repair. Fibrotic disorders represent abnormal wound healing with defective matrix turnover and clearance that lead to excessive accumulation of extracellular matrix components. A variety of identified growth factors, cytokines, and persistently activated myofibroblasts have critical roles in the pathogenesis of fibrosis...
May 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28517972/glycated-collagen-stimulates-the-differentiation-of-gingival-myofibroblasts
#20
Ignacio N Retamal, Romina Hernández, Francisco Melo, Paulina Zapata, Constanza Martínez, Jorge Martínez, Patricio C Smith
BACKGROUND: Glucose-derived metabolites may alter the structure and biological properties of important proteins in the periodontium such as collagens. As a consequence, it is possible that collagen-binding cells may change their phenotypic traits. Though the glucose derived product methylglyoxal has been detected in periodontal lesions, the precise effect of collagen glycation on gingival connective tissue biology is far from being understood. In the present study we have evaluated whether collagen glycation by methylglyoxal may affect the phenotypic properties and remodeling capacity of human gingival fibroblasts...
May 18, 2017: Journal of Periodontology
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