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Wound healing diabetes

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https://www.readbyqxmd.com/read/28922523/mature-b-cells-accelerate-wound-healing-after-acute-and-chronic-diabetic-skin-lesions
#1
Ruxandra F Sîrbulescu, Chloe K Boehm, Erin Soon, Moses Q Wilks, Iulian Ilieş, Hushan Yuan, Ben Maxner, Nicolas Chronos, Charalambos Kaittanis, Marc D Normandin, Georges El Fakhri, Dennis P Orgill, Ann E Sluder, Mark C Poznansky
Chronic wounds affect 12-15% of patients with diabetes and are associated with a drastic decrease in their quality of life. Here we demonstrate that purified mature naïve B220(+) /CD19(+) /IgM(+) /IgD(+) B cells improve healing of acute and diabetic murine wounds after a single topical application. B cell treatment significantly accelerated acute wound closure by 2-3 days in wild-type mice and 5-6 days in obese diabetic mice. The treatment led to full closure in 43% of chronic diabetic wounds, as compared to only 5% in saline-treated controls...
September 18, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28914682/refractory-ulcerated-necrobiosis-lipoidica-closure-of-a-difficult-wound-with-topical-tacrolimus
#2
Luke Ginocchio, Lisa Draghi, Farbod Darvishian, Frank L Ross
OBJECTIVE: To report a case of refractory ulcerated necrobiosis lipoidica (NL) with significant response to treatment with topical tacrolimus. SUBJECT: A 55-year-old woman without diabetes and with a previous history of NL presented to the Helen L. and Martin S. Kimmel Hyperbaric and Advanced Wound Healing Center of NYU Langone Medical Center, New York, with bilateral lower-leg ulcerations resistant to wound healing techniques at other institutions. MATERIALS AND METHODS: Repeat biopsy performed at the author's institution confirmed the diagnosis of NL...
October 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/28912573/low-magnitude-high-frequency-vibration-accelerated-the-foot-wound-healing-of-n5-streptozotocin-induced-diabetic-rats-by-enhancing-glucose-transporter-4-and-blood-microcirculation
#3
Caroline Oi-Ling Yu, Kwok-Sui Leung, Jonney Lei Jiang, Tina Bai-Yan Wang, Simon Kwoon-Ho Chow, Wing-Hoi Cheung
Delayed wound healing is a Type 2 diabetes mellitus (DM) complication caused by hyperglycemia, systemic inflammation, and decreased blood microcirculation. Skeletal muscles are also affected by hyperglycemia, resulting in reduced blood flow and glucose uptake. Low Magnitude High Frequency Vibration (LMHFV) has been proven to be beneficial to muscle contractility and blood microcirculation. We hypothesized that LMHFV could accelerate the wound healing of n5-streptozotocin (n5-STZ)-induced DM rats by enhancing muscle activity and blood microcirculation...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28904951/diabetic-foot-ulcers-and-epidermal-growth-factor-revisiting-the-local-delivery-route-for-a-successful-outcome
#4
REVIEW
Jorge Berlanga-Acosta, José Fernández-Montequín, Calixto Valdés-Pérez, William Savigne-Gutiérrez, Yssel Mendoza-Marí, Ariana García-Ojalvo, Viviana Falcón-Cama, Diana García Del Barco-Herrera, Maday Fernández-Mayola, Héctor Pérez-Saad, Eulogio Pimentel-Vázquez, Aleida Urquiza-Rodríguez, Moshe Kulikovsky, Gerardo Guillén-Nieto
Soon after epidermal growth factor (EGF) discovery, some in vivo models appeared demonstrating its property to enhance cutaneous wound healing. EGF was the first growth factor (GF) introduced in the clinical arena as a healing enhancer, exerting its mitogenic effects on epithelial, fibroblastoid, and endothelial cells via a tyrosine kinase membrane receptor. Compelling evidences from the 90s documented that, for EGF, locally prolonged bioavailability and hourly interaction with the receptor were necessary for a successful tissue response...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28901392/negative-pressure-wound-therapy-regulating-blood-flow-perfusion-and-microvessel-maturation-through-microvascular-pericytes
#5
Zhanjun Ma, Zonghuan Li, Kangquan Shou, Chao Jian, Pengcheng Li, Yahui Niu, Baiwen Qi, Aixi Yu
Negative pressure wound therapy (NPWT) has been demonstrated to accelerate wound healing by promoting angiogenesis. However, whether blood flow perfusion is regulated by microvessel maturation and pericytes following NPWT remains unclear, as well as the exact association between pericytes and collagen type IV. The aim of this study was to investigate the relevant association between blood flow perfusion and microvessel maturation and pericytes following NPWT, and to further explore the underlying molecular mechanisms...
September 13, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28901253/bacterial-toxins-a-hope-towards-angiogenic-ailments
#6
Rekha Khandia, Ashok Kumar Munjal, Kuldeep Dhama, Yashpal Singh Malik
Angiogenesis is a vital physiological process essential for growth and maintenance of the body. It plays an important role during embryonic development and generally absent in adults with some exceptions like during wound repair and menstrual cycle in women. Excess as well as deficiency in angiogenesis, result in pathological conditions. It is a tightly regulated process; rely on cascade of several molecular signalling pathways involving many effectors like VEGF, FGF, PDGF, IGF etc. Excessive angiogenesis is associated with disorders like tumor, atherosclerosis, rheumatoid arthritis, diabetic retinopathy, endometriosis, psoriasis, adiposity...
September 11, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28899684/glycoprotein-non-melanoma-clone-b-regulates-the-crosstalk-between-macrophages-and-mesenchymal-stem-cells-towards-wound-repair
#7
Bing Yu, Talib Alboslemy, Fayez Safadi, Min-Ho Kim
The process of wound repair requires the coordinated participation of multiple types of cells, which are sequentially recruited during the healing process. In response to tissue injury, both macrophages and mesenchymal stem cells (MSCs) are recruited to the site of injury, where they participate in the repair process. Despite considerable understanding on the role of each cell type in the process of wound repair, the nature of the dynamic interplay between these two cell types and how this interaction influences the process of wound repair are not well understood...
September 9, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28899681/comparative-degradomics-of-porcine-and-human-wound-exudates-unravels-biomarker-candidates-for-assessment-of-wound-healing-progression-in-trauma-patients
#8
Fabio Sabino, Fabian E Egli, Simonas Savickas, Jörg Holstein, Daniela Kaspar, Mika Rollmann, Jayachandran N Kizhakkedathu, Tim Pohlemann, Hans Smola, Ulrich Auf dem Keller
Impaired cutaneous wound healing is a major complication in elderly people and patients suffering from diabetes with raising rates in industrialized countries. Heterogeneity of clinical manifestations hampers effective molecular diagnostics and decisions for appropriate therapeutic regimens. Using a customized positional quantitative proteomics workflow, we have established a time-resolved proteome and N-terminome resource from wound exudates in a clinically relevant pig wound model that we exploited as robust template to interpret a heterogeneous dataset from patients undergoing the same wound treatment...
September 9, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28895073/efficacy-and-time-sensitivity-of-amniotic-membrane-treatment-in-patients-with-diabetic-foot-ulcers-a-systematic-review-and-meta-analysis
#9
REVIEW
Irakoze Laurent, Manirakiza Astère, Kan Ran Wang, Qing-Feng Cheng, Qi Fu Li
INTRODUCTION: Diabetic foot ulcers (DFUs) are complex chronic wounds which have a major long-term impact on the morbidity, mortality and quality of patients. The objective of this study was to assess the efficacy and time sensitivity of human amnion/chorion membrane treatment in patients with chronic DFUs. METHODS: The Cochrane Library, PubMed, Embase and Web of Science databases were systematically searched to identify relevant articles up to 10 April 2017. All randomized controlled trials (RCTs) comparing human amnion/chorion membrane + standard therapy and standard therapy alone in patients with DFUs were included in the analysis...
September 11, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28894635/topical-naltrexone-is-a-safe-and-effective-alternative-to-standard-treatment-of-diabetic-wounds
#10
Patricia J McLaughlin, Jarrett D Cain, Michelle B Titunick, Joseph W Sassani, Ian S Zagon
Objective: Diabetes affects more than 29 million individuals in the United States, resulting in healthcare costs approaching $245 billion. Approximately 15% of these individuals will develop a chronic, non-healing foot ulcer (diabetic foot ulcer [DFU]) that, if untreated, may lead to amputation. The current treatments for DFU are expensive, have significant side-effects, and often result in non-compliance. A new topical treatment is described that accelerates cutaneous wound repair and is disease modifying by targeting underlying aberrant diabetic pathways...
September 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28888078/healing-of-soft-tissue-lacerations-in-diabetic-induced-rats
#11
Fawaz Alzoubi, Bobby Joseph, Lars Andersson
BACKGROUND/AIM: Prevalence and incidence of diabetes is increasing and many dental trauma patients today have diabetes. The implications of delayed wound healing, associated with diabetes mellitus, on oral mucosal wound healing has not been investigated extensively. The aim of this study was to investigate the implications of diabetes mellitus on the cellular, vascular, and fibroblastic changes induced by laceration on the oral mucosa of Wistar rats. MATERIALS AND METHODS: Sixteen female Wistar rats were randomly assigned into two groups: 1...
September 9, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28887865/plasma-rich-plasma-the-ultimate-secret-for-youthful-skin-elixir-and-hair-growth-triggering
#12
REVIEW
Ebtisam Elghblawi
The clinical application of platelet-rich plasma (PRP) is based on the increase in the concentration of growth factors that are released from alpha-granule of the concentrated platelets and in the secretion of proteins which are able to capitalize on the healing process at the cellular level. It has been invented to restore the natural beauty by starting the natural rejuvenation process of the skin and aiming to make it function as a younger one and to keep the skin youthful and maintain it. Besides that, it is also emerged to include hairs as a new injectable procedure to enable stimulating hair growth locally and topically; preventing its fall; improving hair shaft, hair stem, and its caliber; increasing its shine, vitality, and pliability; and declining hair splitting and breakage...
September 8, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28887854/human-tissue-inhibitor-of-metalloproteinases-1-improved-wound-healing-in-diabetes-through-its-anti-apoptotic-effect
#13
Guojuan Lao, Meng Ren, Xiaoyi Wang, Jinglu Zhang, Yanrui Huang, Dan Liu, Hengcong Luo, Chuan Yang, Li Yan
Impaired wound healing accompanies severe cell apoptosis in diabetic patients. Tissue Inhibitor of Metalloproteinases-1 (TIMP-1) was known to have effects on promoting growth and anti-apoptosis for cells. we aimed to determine the actual levels of TIMP-1 and cell apoptosis in: 1) the biopsies of diabetic and non-diabetic foot tissue; 2) the human fibroblasts with or without treatments of Advanced Glycation End Products (AGEs). Next, in both human fibroblasts and the animal model of diabetic rats, to determine the improved levels of cell apoptosis and wound healing after the treatments of either active protein of TIMP-1 or in vivo expression of gene therapy vector-mediated TIMP-1...
September 8, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28881730/suppression-of-microrna-205-5p-in-human-mesenchymal-stem-cells-improves-their-therapeutic-potential-in-treating-diabetic-foot-disease
#14
Lingyan Zhu, Gongxian Wang, Shane Fischbach, Xiangwei Xiao
Diabetes is a prevalent disease endangering human health, while diabetic foot disease (DF) is one of the most severe complications of diabetes. Mesenchymal stem cells (MSCs) have been used in DF treatment, taking advantage of the differentiation potential of MSCs into endothelial cells and their production and secretion of trophic factors like vascular endothelial growth factor (VEGF). Molecular modification of MSCs to improve their therapeutic effects has been recently applied in treating other diseases, but not yet in DF...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28880752/evaluation-of-osteopontin-expression-in-chronic-wounds-a-potential-prognostic-and-therapeutic-biomarker
#15
S Chimento, V Billero, L Cavallin, M Romanelli, M Nadji, P Romanelli
OBJECTIVE: Osteopontin (OPN) is abundantly expressed during tissue repair, acting as a powerful chemokine that recruits inflammatory cells such as neutrophils, macrophages, and Langerhans cells. The role of OPN in chronic wounds has not been explored. In this study, we assess the expression levels of OPN in chronic wounds to assess its potential contribution to the exacerbated inflammation seen in chronic ulcers, which is thought to contribute to poor healing. METHODS: This retrospective study included archived biopsies of chronic wounds from several aetiologies...
September 1, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28880596/does-baseline-hemoglobin-a1c-level-predict-diabetic-foot-ulcer-outcome-or-wound-healing-time
#16
Lourdes Vella, Alfred Gatt, Cynthia Formosa
BACKGROUND: We sought to evaluate the relationship between baseline hemoglobin A1c (HbA1c) level and clinical outcomes, including foot ulcer outcome (resolved versus unresolved) and wound-healing time, in individuals with type 2 diabetes. METHODS: A prospective observational study was conducted on 99 patients presenting with a diabetic foot ulceration. Patient and ulcer characteristics were recorded. Patients were followed up for a maximum of 1 year. RESULTS: After 1 year of follow-up, 77% of ulcers healed and 23% did not heal...
July 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28880591/remote-ischemic-conditioningpromising-potential-in-wound-repair-in-diabetes
#17
Jano A Boghossian, Bellal Joseph, Marvin J Slepian, David G Armstrong
Remote ischemic conditioning involves the use of a blood pressure cuff or similar device to induce brief (3-5 min) episodes of limb ischemia. This, in turn, seems to activate a group of distress signals that has shown the potential ability to improve healing of the heart muscle and other organ systems. Until recently, this has not been tested in people with diabetic foot ulcers. The purpose of this review was to provide background on remote ischemic conditioning and recent data to potentially support its use as an adjunct to healing diabetic foot ulcers and other types of tissue loss...
July 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28878327/accelerated-healing-of-diabetic-wounds-treated-with-l-glutamic-acid-loaded-hydrogels-through-enhanced-collagen-deposition-and-angiogenesis-an-in-vivo-study
#18
Ponrasu Thangavel, Balaji Ramachandran, Sudip Chakraborty, Ramya Kannan, Suguna Lonchin, Vignesh Muthuvijayan
We have developed L-glutamic acid (LG) loaded chitosan (CS) hydrogels to treat diabetic wounds. Although literature reports wound healing effects of poly(glutamic acid)-based materials, there are no studies on the potential of L-glutamic acid in treating diabetic wounds. As LG is a direct precursor for proline synthesis, which is crucial for collagen synthesis, we have prepared CS + LG hydrogels to accelerate diabetic wound healing. Physiochemical properties of the CS + LG hydrogels showed good swelling, thermal stability, smooth surface morphology, and controlled biodegradation...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28874762/cytocompatible-anti-microbial-dressings-of-syzygium-cumini-cellulose-nanocrystals-decorated-with-silver-nanoparticles-accelerate-acute-and-diabetic-wound-healing
#19
Rubbel Singla, Sourabh Soni, Vikram Patial, Pankaj Markand Kulurkar, Avnesh Kumari, Mahesh S, Yogendra S Padwad, Sudesh Kumar Yadav
The ever increasing incidences of non-healing skin wounds have paved way for many efforts on the convoluted process of wound healing. Unfortunately, the lack of relevance and success of modern wound dressings in healing of acute and diabetic wounds still remains a matter of huge concern. Here, an in situ three step approach was embraced for the development of nanocomposite (NCs) dressings by impregnating silver nanoparticles (AgNPs) onto a matrix of cellulose nanocrystals (CNCs) isolated from Syzygium cumini leaves using an environmental friendly approach...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28874756/foxo1-deletion-in-keratinocytes-improves-diabetic-wound-healing-through-mmp9-regulation
#20
Chenying Zhang, Jason Lim, Hyeran Helen Jeon, Fanxing Xu, Chen Tian, Fang Miao, Alhassan Hameedaldeen, Dana T Graves
Keratinocyte migration is a key aspect of re-epithelialization during wound healing. Matrix metalloproteinase 9 (MMP9) contributes to this process and deficiencies in the MMP9 lead to impaired healing. Inappropriate expression of MMP9 also contributes to impaired re-epithelialization. Previously we demonstrated that FOXO1 was activated in wound healing but to higher levels in diabetic wounds. To address mechanisms of impaired re-epithelialization we examined MMP9 expression in vivo in full thickness dermal scalp wounds created in experimental K14...
September 5, 2017: Scientific Reports
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