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Diabetes regeneration

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https://www.readbyqxmd.com/read/29140125/diabetes-area-patent-participation-analysis-part-ii-years-2011-2016
#1
Markus Boehm, Matthew Crawford, Jamie E Moscovitz, Philip A Carpino
Diabetes is a metabolic disease characterized by elevated levels of plasma glucose. When untreated, diabetes increases the risk of developing co-morbidities such as cardiovascular disease. Several drugs, often used as part of combination therapies, have been approved to treat the disease, but these drugs will eventually fail to effectively control blood glucose levels, at which point insulin replacement therapy is required. A medical need exists for new anti-diabetic drugs that exhibit good efficacy with improved safety/toleration profiles and can be added on top of existing therapies, or that can provide additional benefits beyond glucose lowering such as pancreatic beta (β)-cell protection...
November 15, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/29130349/regenerating-%C3%AE-cells-of-the-pancreas-potential-developments-in-diabetes-treatment
#2
Shengli Dong, Hongju Wu
The etiology of diabetes is mainly attributed to insulin deficiency due to the lack of β cells (type 1), or to insulin resistance that eventually results in β cell dysfunction (type 2). Therefore, an ultimate cure for diabetes requires the ability to replace the lost insulin-secreting β cells. Strategies for regenerating β cells are under extensive investigation. Areas covered: Herein, the authors first summarize the mechanisms underlying embryonic β cell development and spontaneous adult β cell regeneration, which forms the basis for developing β cell regeneration strategies...
November 13, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29119607/impaired-peripheral-nerve-regeneration-in-type-2-diabetic-mouse-model
#3
Pham Minh Vuong, H Tu Nguyen, Tayo Katano, Shinji Matsumura, Akira Saito, Akihiro Yamada, Hidemasa Furue, Seiji Ito
Peripheral neuropathy is one of the most common and serious complications of type-2 diabetes. Diabetic neuropathy is characterized by a distal symmetrical sensorimotor polyneuropathy, and its incidence increases in patients 40 years of age or older. In spite of extensive research over decades, there are few effective treatments for diabetic neuropathy besides glucose control and improved lifestyle. The earliest changes in diabetic neuropathy occur in sensory nerve fibers, with initial degeneration and regeneration resulting in pain...
November 9, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29113466/perspectives-of-stem-cell-based-therapy-for-age-related-retinal-degenerative-diseases
#4
Vladimir Holan, Barbora Hermankova, Jan Kossl
Retinal degenerative diseases, which include age-related macular degeneration, retinitis pigmentosa, diabetic retinopathy, and glaucoma, mostly affect the elderly population and are the most common cause of decreased quality of vision or even blindness. So far, there is no satisfactory treatment protocol to prevent, stop, or cure these disorders. A great hope and promise for patients suffering from retinal diseases is represented by stem cell-based therapy that could replace diseased or missing retinal cells and support regeneration...
September 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29111856/vascular-derived-connective-tissue-growth-factor-ctgf-is-critical-for-pregnancy-induced-%C3%AE-cell-hyperplasia-in-adult-mice
#5
Raymond C Pasek, Jennifer C Dunn, Joseph M Elsakr, Mounika Aramandla, Anveetha R Matta, Maureen Gannon
During pregnancy, maternal β cells undergo compensatory changes including hypertrophy, hyperplasia, and increased glucose-stimulated insulin secretion (GSIS). Failure of these adaptations to occur can result in gestational diabetes mellitus. The secreted protein, Connective tissue growth factor (Ctgf), is critical for normal β cell development and promotes regeneration after partial β cell ablation. During embryogenesis, Ctgf is expressed in pancreatic ducts, vasculature, and β cells. In the adult pancreas, Ctgf is expressed only in the vasculature...
November 7, 2017: Islets
https://www.readbyqxmd.com/read/29111170/moderate-intensity-4mt-static-magnetic-fields-prevent-bone-architectural-deterioration-and-strength-reduction-by-stimulating-bone-formation-in-streptozotocin-treated-diabetic-rats
#6
Hao Zhang, Lu Gan, Xiaoquan Zhu, Jun Wang, Licun Han, Peng Cheng, Da Jing, Xiaodong Zhang, Qingshun Shan
Type 1 diabetes mellitus (T1DM) has been associated with deterioration of bone microarchitecture and strength, resulting in increased fracture risk. Substantial studies have revealed the capacity of moderate-intensity static magnetic fields (SMF) on promoting osteoblastogenesis in vitro and stimulating bone growth and bone regeneration in vivo, whereas it is unknown whether SMF can resist T1DM-associated osteopenia/osteoporosis. We herein investigated the potential effects of whole-body SMF exposure with 4mT on bone loss in streptozotocin-induced T1DM rats...
October 27, 2017: Bone
https://www.readbyqxmd.com/read/29109681/tenascins-in-retinal-and-optic-nerve-neurodegeneration
#7
REVIEW
Jacqueline Reinhard, Lars Roll, Andreas Faissner
Tenascins represent key constituents of the extracellular matrix (ECM) with major impact on central nervous system (CNS) development. In this regard, several studies indicate that they play a crucial role in axonal growth and guidance, synaptogenesis and boundary formation. These functions are not only important during development, but also for regeneration under several pathological conditions. Additionally, tenascin-C (Tnc) represents a key modulator of the immune system and inflammatory processes. In the present review article, we focus on the function of Tnc and tenascin-R (Tnr) in the diseased CNS, specifically after retinal and optic nerve damage and degeneration...
2017: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/29096722/pdx1-neurogenin-3-and-mafa-critical-transcription-regulators-for-beta-cell-development-and-regeneration
#8
REVIEW
Yaxi Zhu, Qian Liu, Zhiguang Zhou, Yasuhiro Ikeda
Transcription factors regulate gene expression through binding to specific enhancer sequences. Pancreas/duodenum homeobox protein 1 (PDX1), Neurogenin-3 (NEUROG3), and V-maf musculoaponeurotic fibrosarcoma oncogene homolog A (MAFA) are transcription factors critical for beta cell development and maturation. NEUROG3 is expressed in endocrine progenitor cells and controls islet differentiation and regeneration. PDX1 is essential for the development of pancreatic exocrine and endocrine cells including beta cells...
November 2, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29095895/exendin-4-a-glucagon-like-peptide-1-analogue-accelerates-healing-of-chronic-gastric-ulcer-in-diabetic-rats
#9
Yen-Cheng Chen, Ching-Chun Ho, Chih-Hsun Yi, Xiu-Zhu Liu, Tzu-Ting Cheng, Chen-Fuh Lam
BACKGROUND: Diabetes mellitus is an independent risk factor for impaired healing of peptic ulcers, and there are currently no supplementary therapeutics other than the standard antipeptic medicine to improve the ulcer healing in diabetes. This study examined the potential pleiotropic effect of a glucagon-like peptide (Glp)-1 analogue exendin (Ex)-4 on the regeneration of gastric ulcer in streptozotocin-induced diabetic rats. METHODS AND RESULTS: Chronic ulcer was created in rat stomach by submucosal injection of acetic acid and peri-ulcer tissues were analyzed 7 days after operation...
2017: PloS One
https://www.readbyqxmd.com/read/29093990/determination-of-the-critical-diabetes-duration-in-a-streptozotocin-induced-diabetic-rat-calvarial-defect-model-for-experimentation-regarding-bone-regeneration
#10
Hyun Ju Kim, Bo Hyun Jung, Ki-Yeon Yoo, Jin-Woo Han, Heung-Sik Um, Beom-Seok Chang, Jae-Kwan Lee
Purpose: The purpose of this study was to determine the critical diabetes duration in a streptozotocin (STZ)-induced diabetic rat calvarial defect model for experimentation regarding bone regeneration by evaluating the association between diabetes duration and bone healing capacity through histological and radiographic analyses. Methods: Experimental diabetes was induced in 50 of 60 rats by an STZ injection. The rats were divided into 5 groups, including a control group (group 1), according to diabetes durations of 0, 2, 4, 6, and 8 weeks, respectively...
October 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29080611/annona-muricata-is-the-natural-therapy-to-most-disease-conditions-including-cancer-growing-in-our-backyard-a-systematic-review-of-its-research-history-and-future-prospects
#11
REVIEW
Yahaya Gavamukulya, Fred Wamunyokoli, Hany A El-Shemy
Annona muricata (A. muricata) is a tropical plant species belonging to family Annonaceae and known for its many medicinal uses. This review focuses on the research history of its traditional uses, phytochemicals, pharmacological activities, toxicological aspects of the extracts and isolated compounds, as well as the in vitro propagation studies with the objective of stimulating further studies on this plant for human consumption and treatment. A. muricata extracts have been identified in tropical regions to traditionally treat diverse conditions ranging from fever to diabetes and cancer...
September 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/29080456/cytotherapy-using-stromal-cells-current-and-advance-multi-treatment-approaches
#12
REVIEW
Pravin Shende, Hunny Gupta, R S Gaud
The research in stem cells gives a proper information about basic mechanisms of human development and differentiation. The use of stem cells in new medicinal therapies includes treatment of different conditions such as spinal cord injury, diabetes mellitus, Parkinsonism, and cardiac disorders. These cells exhibit two unique properties: self-renewal and differentiation. The major stem cells been used for approximately about 10-14 years for cellular therapy are mesenchymal stem cells. Mesenchymal stem cells can individualize into many lineage, i...
October 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29074394/n-6-adenine-dna-methylation-demystified-in-eukaryotic-genome-from-biology-to-pathology
#13
REVIEW
Nidarshana Chaturvedi Parashar, Gaurav Parashar, Harsh Nayyar, Rajat Sandhir
N(6)-methyl-2'-deoxyadenosine (m6dA) is a well characterized DNA modification in prokaryotes. Its existence in eukaryotic DNA remained doubtful until recently. Evidence suggests that the m6dA levels decrease with the increasing complexity of eukaryotic genomes. Analysis of m6dA levels in genome of lower eukaryotes reveals its role in gene regulation, nucleosome positioning and early development. In higher eukaryotes m6dA is enriched in nongenic region compared to genic region, preferentially in chromosome X and 13 suggesting a chromosome bias...
October 23, 2017: Biochimie
https://www.readbyqxmd.com/read/29063963/does-oxidative-stress-play-a-role-in-altered-characteristics-of-diabetic-bone-a-systematic-review
#14
REVIEW
Miljana Bacevic, Bozidar Brkovic, Adelin Albert, Eric Rompen, Regis P Radermecker, France Lambert
Diabetes mellitus (DM) has been associated with increased bone fracture rates, impaired bone regeneration, delayed bone healing, and depressed osteogenesis. However, the plausible pathogenic mechanisms remain incompletely understood. The aim of the present systematic review was to investigate whether oxidative stress (OS) plays a role in altered characteristics of diabetic bone under in vivo conditions. An electronic search of the MEDLINE (via PubMed) and Embase databases was performed. In vivo animal studies involving DM and providing information regarding assessment of OS markers combined with analyses of bone histology/histomorphometry parameters were selected...
December 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29058819/involvement-of-dying-beta-cell-originated-messenger-molecules-in-differentiation-of-pancreatic-mesenchymal-stem-cells-under-glucotoxic-and-glucolipotoxic-conditions
#15
Selda Gezginci-Oktayoglu, Evren Onay-Ucar, Serap Sancar-Bas, Ayse Karatug-Kacar, Emine Sekure Nazli Arda, Sehnaz Bolkent
Beta cell mass regulation represents a critical issue for understanding and treatment of diabetes. The most important process in the development of diabetes is beta cell death, generally induced by glucotoxicity or glucolipotoxicity, and the regeneration mechanism of new beta cells that will replace dead beta cells is still not fully understood. The aim of this study was to investigate the generation mechanism of new beta cells by considering the compensation phase of type2 diabetes mellitus. Pancreatic islet derived mesenchymal stem cells (PI-MSCs) were isolated from adult rats and characterized...
October 23, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29053790/the-hippo-signaling-pathway-in-pancreatic-%C3%AE-cells-functions-and-regulations
#16
Amin Ardestani, Kathrin Maedler
Hippo signaling is an evolutionarily conserved pathway that critically regulates development and homeostasis of various tissues in response to a wide range of extracellular and intracellular signals. As an emerging significant player in many diseases, the Hippo pathway is also involved in the pathophysiology of diabetes on the level of the pancreatic islets. Multiple lines of evidence uncover the importance of Hippo signaling in pancreas development as well as in the regulation of β-cell survival, proliferation and regeneration...
October 18, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/29052001/quail-coturnix-japonica-egg-yolk-bioactive-components-attenuate-streptozotocin-induced-testicular-damage-and-oxidative-stress-in-diabetic-rats
#17
Gideon Oludare Oladipo, Chidinma Martha Nlekerem, Emmanuel Oluwafemi Ibukun, Ayodele Oluseyi Kolawole
INTRODUCTION: The testicular milieu is the machinery for the metabolism of testosterone in the male reproductive system. PURPOSE: The dysfunction of this highly regenerating system is inevitable in the condition of glucose imbalance as a result of insulin machinery impairment. Therefore, it is imperative to recommend dietary intervention for attenuating the testicular dysfunction and oxidative stress resulting from STZ-induction of diabetes. METHODS: STZ-induced diabetes (65 mg/kg, ip) was treated with QEYEM (50, 100 and 200 mg/kg/day) and quercetin (50 mg/kg/day) for 7weeks...
October 19, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29049055/oxidized-regenerated-cellulose-collagen-dressings-review-of-evidence-and-recommendations
#18
Stephanie Wu, Andrew J Applewhite, Jeffrey Niezgoda, Robert Snyder, Jayesh Shah, Breda Cullen, Gregory Schultz, Janis Harrison, Rosemary Hill, Melania Howell, Marcus Speyrer, Howard Utra, Jean de Leon, Wayne Lee, Terry Treadwell
OBJECTIVE: Healthcare systems are being challenged to manage increasing numbers of nonhealing wounds. Wound dressings are one of the first lines of defense in wound management, and numerous options exist. The oxidized regenerated cellulose (ORC)/collagen dressing may offer healthcare providers a robust and cost-effective tool for use in a variety of wounds. DESIGN: A multidisciplinary panel meeting was convened to discuss the use of ORC/collagen dressings in wound care and provide practice recommendations...
November 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29031208/phytoecdysteroids-from-ajuga-iva-act-as-potential-antidiabetic-agent-against-alloxan-induced-diabetic-male-albino-rats
#19
Jin-Jun Wang, Hao Jin, Shao-Ling Zheng, Peng Xia, Yong Cai, Xiao-Jie Ni
The present study investigated the protective effect of phytoecdysteroids extracted from the Ajuga iva plant on body weight changes, blood glucose, insulin total protein, blood urea nitrogen (BUN), creatinine, triglycerides (TG), cholesterol, lipid peroxidation, antioxidant enzymes, pancreatic histopathology and hexokinase-I expression in the alloxan-induced diabetic rats. Experimental diabetes was induced following 15day intraperitoneal administration of alloxan. The rats were divided into four groups. Group I served as a sham group, and group II served as the diabetic control...
October 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29025873/ectopic-expression-of-pax4-in-pancreatic-%C3%AE-cells-results-in-%C3%AE-like-cell-neogenesis
#20
Noémie Druelle, Andhira Vieira, Aidin Shabro, Monica Courtney, Magali Mondin, Samah Rekima, Tiziana Napolitano, Serena Silvano, Sergi Navarro-Sanz, Biljana Hadzic, Fabio Avolio, Minoo Rassoulzadegan, Herbert A Schmid, Ahmed Mansouri, Patrick Collombat
The recent demonstration that pancreatic α cells can be continuously regenerated and converted into β-like cells upon ectopic expression of Pax4 opened new avenues of research in the endocrine cell differentiation and diabetes fields. To determine whether such plasticity was also shared by δ cells, we generated and characterized transgenic animals that express Pax4 specifically in somatostatin-expressing cells. We demonstrate that the ectopic expression of Pax4 in δ cells is sufficient to induce their conversion into functional β-like cells...
October 12, 2017: Journal of Cell Biology
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