keyword
MENU ▼
Read by QxMD icon Read
search

Insulin regeneration

keyword
https://www.readbyqxmd.com/read/28411170/the-critical-role-of-phosphatidylcholine-and-phosphatidylethanolamine-metabolism-in-health-and-disease
#1
REVIEW
Jelske N van der Veen, John P Kennelly, Sereana Wan, Jean E Vance, Dennis E Vance, René L Jacobs
Phosphatidylcholine (PC) and phosphatidylethanolamine (PE) are the most abundant phospholipids in all mammalian cell membranes. In the 1950s, Eugene Kennedy and co-workers performed groundbreaking research that established the general outline of many of the pathways of phospholipid biosynthesis. In recent years, the importance of phospholipid metabolism in regulating lipid, lipoprotein and whole-body energy metabolism has been demonstrated in numerous dietary studies and knockout animal models. The purpose of this review is to highlight the unappreciated impact of phospholipid metabolism on health and disease...
April 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28405581/angiogenesis-in-newly-regenerated-bone-by-secretomes-of-human-mesenchymal-stem-cells
#2
Wataru Katagiri, Takamasa Kawai, Masashi Osugi, Yukiko Sugimura-Wakayama, Kohei Sakaguchi, Taku Kojima, Tadaharu Kobayashi
BACKGROUND: For an effective bone graft for reconstruction of the maxillofacial region, an adequate vascular network will be required to supply blood, osteoprogenitor cells, and growth factors. We previously reported that the secretomes of bone marrow-derived mesenchymal stem cells (MSC-CM) contain numerous growth factors such as insulin-like growth factor (IGF)-1, transforming growth factor (TGF)-β1, and vascular endothelial growth factor (VEGF), which can affect the cellular characteristics and behavior of regenerating bone cells...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28385600/mesenchymal-stem-cells-and-differentiated-insulin-producing-cells-are-new-horizons-for-pancreatic-regeneration-in-type-i-diabetes-mellitus
#3
Ayat M Domouky, Ashraf S Hegab, Amal Al-Shahat, Nermin Raafat
BACKGROUND: Diabetes mellitus has become the third human killer following cancer and cardiovascular disease. Millions of patients, often children, suffer from type 1 diabetes (T1D). Stem cells created hopes to regenerate damaged body tissues and restore their function. AIM: This work aimed at clarifying and comparing the therapeutic potential of differentiated and non-differentiated mesenchymal stem cells (MSCs) as a new line of therapy for T1D. METHODS: 40 Female albino rats divided into group I (control): 10 rats and group II (diabetic), III and IV, 10 rats in each, were injected with streptozotocin (50mg/kg body weight)...
April 3, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28380670/improved-regeneration-and-de-novo-bone-formation-in-a-diabetic-zebrafish-model-treated-with-paricalcitol-and-cinacalcet
#4
Filipe R Carvalho, Ana R Fernandes, M Leonor Cancela, Paulo J Gavaia
Bone changes related to diabetes have been well stablished, but few strategies have been developed to prevent this growing health problem. In our work we propose to investigate the effects of calcitriol as well as of a vitamin D analog (paricalcitol) and a calcimimetic (cinacalcet), in fin regeneration and de novo mineralization in a zebrafish model of diabetes. Following exposure of diabetic transgenic Tg(ins:nfsb-mCherry) zebrafish to calcitriol, paricalcitol and cinacalcet, caudal fins were amputated to assess their effects on tissue regeneration...
April 5, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28380380/virgin-beta-cells-persist-throughout-life-at-a-neogenic-niche-within-pancreatic-islets
#5
Talitha van der Meulen, Alex M Mawla, Michael R DiGruccio, Michael W Adams, Vera Nies, Sophie Dólleman, Siming Liu, Amanda M Ackermann, Elena Cáceres, Anna E Hunter, Klaus H Kaestner, Cynthia J Donaldson, Mark O Huising
Postnatal maintenance or regeneration of pancreatic beta cells is considered to occur exclusively via the replication of existing beta cells, but clinically meaningful restoration of human beta cell mass by proliferation has never been achieved. We discovered a population of immature beta cells that is present throughout life and forms from non-beta precursors at a specialized micro-environment or "neogenic niche" at the islet periphery. These cells express insulin, but lack other key beta cell markers, and are transcriptionally immature, incapable of sensing glucose, and unable to support calcium influx...
April 4, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28375156/%C3%AF-3-polyunsaturated-fatty-acids-ameliorate-type-1-diabetes-and-autoimmunity
#6
Xinyun Bi, Fanghong Li, Shanshan Liu, Yan Jin, Xin Zhang, Tao Yang, Yifan Dai, Xiaoxi Li, Allan Zijian Zhao
Despite the benefit of insulin, blockade of autoimmune attack and regeneration of pancreatic islets are ultimate goals for the complete cure of type 1 diabetes (T1D). Long-term consumption of ω-3 polyunsaturated fatty acids (PUFAs) is known to suppress inflammatory processes, making these fatty acids candidates for the prevention and amelioration of autoimmune diseases. Here, we explored the preventative and therapeutic effects of ω-3 PUFAs on T1D. In NOD mice, dietary intervention with ω-3 PUFAs sharply reduced the incidence of T1D, modulated the differentiation of Th cells and Tregs, and decreased the levels of IFN-γ, IL-17, IL-6, and TNF-α...
April 4, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28359314/alpinia-oxyphylla-miq-fruit-extract-activates-igfr-pi3k-akt-signaling-to-induce-schwann-cell-proliferation-and-sciatic-nerve-regeneration
#7
Yung-Ming Chang, Hen-Hong Chang, Chin-Chuan Tsai, Hung-Jen Lin, Tsung-Jung Ho, Chi-Xin Ye, Ping-Ling Chiu, Yueh-Sheng Chen, Ray-Jade Chen, Chih-Yang Huang, Chien-Chung Lin
BACKGROUND: It is known that the medicinal herb Alpinia oxyphylla Miq. is widely used as a remedy for diarrhea as well as the symptoms accompanying hypertension and cerebrovascular disorders. Moreover, it has also been reported that Alpinia oxyphylla Miq. has beneficial effects on anti-senescence and neuro-protection. This study focuses on the molecular mechanisms by which the Alpinia oxyphylla Miq. fruits promote neuron regeneration. METHODS: A piece of silicone rubber was guided across a 15 mm gap in the sciatic nerve of a rat...
March 31, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28348115/decrease-in-ins-glut2-lo-%C3%AE-cells-with-advancing-age-in-mouse-and-human-pancreas
#8
Christine A Beamish, Sofia Mehta, Brenda J Strutt, Subrata Chakrabarti, Manami Hara, David J Hill
The presence and location of resident pancreatic β-cell progenitors is controversial. A subpopulation of insulin-expressing but glucose transporter-2-low (Ins+Glut2LO) cells may represent multipotent pancreatic progenitors in adult mouse and human islets, and in mice are enriched in small, extra-islet β-cell clusters (<5 β-cells). Here, we sought to identify and compare the ontogeny of these cells in mouse and human pancreata throughout life. Mouse pancreata were collected at postnatal days (d) 7, 14, 21, 28, and at 3, 6, 12, and 18 months of age, and in the first 28 days after β-cell mass depletion following Streptozotocin (STZ) administration...
March 27, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28336399/synthetic-matrix-of-polyether-polyurethane-as-a-biological-platform-for-pancreatic-regeneration
#9
Luciana Xavier Pereira, Celso Tarso Rodrigues Viana, Laura Alejandra Ariza Orellano, Simone Aparecida Almeida, Anilton Cesar Vasconcelos, Alfredo de Miranda Goes, Alexander Birbrair, Silvia Passos Andrade, Paula Peixoto Campos
AIMS: Several alternative cellular approaches using biomaterials to host insulin-producing cells derived from stem cells have been developed to overcome the limitations of type 1 diabetes treatment (exogenous insulin injection). However, none seem to fulfill all requirements needed to induce pancreatic cells successful colonization of the scaffolds. Here, we report a polymeric platform adherent to the native mice pancreas filled with human adipose stem cells (hASCs) that was able to induce growth of pancreatic parenchyma...
May 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28324014/variation-in-the-insulin-like-growth-factor-1-gene-in-primates
#10
Peter Rotwein
Insulin-like growth factor 1 (IGF1) is a multifunctional peptide that is involved in a wide range of physiological and pathophysiological processes in many animal species, ranging from somatic growth in children to metabolism and tissue regeneration and repair in adults. The IGF1 gene is under multifactorial regulation in the few species in which it has been studied, with major control being exerted by growth hormone through a gene expression pathway involving inducible binding of the STAT5b transcription factor to dispersed enhancer elements...
April 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323930/%C3%AE-cells-persist-in-t1d-pancreata-without-evidence-for-ongoing-%C3%AE-cell-turnover-or-neogenesis
#11
Carol J Lam, Daniel R Jacobson, Matthew M Rankin, Aaron R Cox, Jake A Kushner
Context: The cellular basis of persistent β-cell function in T1D remains enigmatic. No extensive quantitative β-cell studies of T1D pancreata have been performed to test for ongoing β-cell regeneration or neogenesis. Objective: We sought to determine the mechanism of β-cell persistence in T1D pancreata. Design: We studied T1D (n=47) and non-diabetic control (n=59) pancreata over a wide range of ages from the JDRF Network of Pancreatic Organ donors with Diabetes (nPOD) via high throughput microscopy...
February 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28298931/the-roles-of-insulin-like-growth-factors-in-mesenchymal-stem-cell-niche
#12
REVIEW
Amer Youssef, Doaa Aboalola, Victor K M Han
Many tissues contain adult mesenchymal stem cells (MSCs), which may be used in tissue regeneration therapies. However, the MSC availability in most tissues is limited which demands expansion in vitro following isolation. Like many developing cells, the state of MSCs is affected by the surrounding microenvironment, and mimicking this natural microenvironment that supports multipotent or differentiated state in vivo is essential to understand for the successful use of MSC in regenerative therapies. Many researchers are, therefore, optimizing cell culture conditions in vitro by altering growth factors, extracellular matrices, chemicals, oxygen tension, and surrounding pH to enhance stem cells self-renewal or differentiation...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28290605/transplantation-of-betatrophin-expressing-adipose-derived-mesenchymal-stem-cells-induces-%C3%AE-cell-proliferation-in-diabetic-mice
#13
Liang-Liang Sun, Tian-Jin Liu, Limei Li, Wei Tang, Jun-Jie Zou, Xiang-Fang Chen, Jiao-Yang Zheng, Bei-Ge Jiang, Yong-Quan Shi
Recent progress in regenerative medicine has suggested that mesenchymal stem cell (MSC)-based therapy is a novel potential cure for diabetes. Betatrophin is a newly identified hormone that can increase the production and expansion of insulin-secreting β-cells when administered to mice. In this study, we evaluated the effect of betatrophin overexpression by human adipose-derived MSCs (ADMSCs) by in vitro experiments, as well as following their transplantation into a mice with streptozotocin (STZ)-induced diabetes...
April 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28286758/role-of-vitamin-d-in-uremic-vascular-calcification
#14
REVIEW
Yi-Chou Hou, Wen-Chih Liu, Cai-Mei Zheng, Jing-Quan Zheng, Tzung-Hai Yen, Kuo-Cheng Lu
The risk of cardiovascular death is 10 times higher in patients with CKD (chronic kidney disease) than in those without CKD. Vascular calcification, common in patients with CKD, is a predictor of cardiovascular mortality. Vitamin D deficiency, another complication of CKD, is associated with vascular calcification in patients with CKD. GFR decline, proteinuria, tubulointerstitial injury, and the therapeutic dose of active form vitamin D aggravate vitamin D deficiency and reduce its pleiotropic effect on the cardiovascular system...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28281528/lnc-mg-is-a-long-non-coding-rna-that-promotes-myogenesis
#15
Mu Zhu, Jiafan Liu, Jia Xiao, Li Yang, Mingxiang Cai, Hongyu Shen, Xiaojia Chen, Yi Ma, Sumin Hu, Zuolin Wang, An Hong, Yingxian Li, Yao Sun, Xiaogang Wang
Recent studies indicate important roles for long noncoding RNAs (lncRNAs) as essential regulators of myogenesis and adult skeletal muscle regeneration. However, the specific roles of lncRNAs in myogenic differentiation of adult skeletal muscle stem cells and myogenesis are still largely unknown. Here we identify a lncRNA that is specifically enriched in skeletal muscle (myogenesis-associated lncRNA, in short, lnc-mg). In mice, conditional knockout of lnc-mg in skeletal muscle results in muscle atrophy and the loss of muscular endurance during exercise...
March 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28276640/prospective-review-of-mesenchymal-stem-cells-differentiation-into-osteoblasts
#16
REVIEW
Priyanka Garg, Matthew M Mazur, Amy C Buck, Meghan E Wandtke, Jiayong Liu, Nabil A Ebraheim
Stem cell research has been a popular topic in the past few decades. This review aims to discuss factors that help regulate, induce, and enhance mesenchymal stem cell (MSC) differentiation into osteoblasts for bone regeneration. The factors analyzed include bone morphogenic protein (BMP), transforming growth factor β (TGF-β), stromal cell-derived factor 1 (SDF-1), insulin-like growth factor type 1 (IGF-1), histone demethylase JMJD3, cyclin dependent kinase 1 (CDK1), fucoidan, Runx2 transcription factor, and TAZ transcriptional coactivator...
February 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28261159/systemic-regulators-of-skeletal-muscle-regeneration-in-obesity
#17
REVIEW
Indranil Sinha, Dharaniya Sakthivel, David E Varon
Skeletal muscle maintenance is a dynamic process and undergoes constant repair and regeneration. However, skeletal muscle regenerative capacity declines in obesity. In this review, we focus on obesity-associated changes in inflammation, metabolism, and impaired insulin signaling, which are pathologically dysregulated and ultimately result in a loss of muscle mass and function. In addition, we examine the relationships between skeletal muscle, liver, and visceral adipose tissue in an obese state.
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28256126/porous-nanohydroxyapatite-collagen-scaffolds-loading-insulin-plga-particles-for-restoration-of-critical-size-bone-defect
#18
Xing Wang, Xia Wu, Helin Xing, Guilan Zhang, Quan Shi, Lingling E, Na Liu, Tingyuan Yang, Dongsheng Wang, Feng Qi, Lianyan Wang, Hongchen Liu
Insulin is considered to be a classical central regulator of energy homeostasis. Recently, the effect of insulin on bone has gained a lot of attention, but little attention has been paid to the application in bone tissue engineering. In this study, porous nanohydroxyapatite/collagen (nHAC) scaffolds incorporating poly lactic-co-glycolic acid (PLGA) particles were successfully developed as an insulin delivery platform for bone regeneration. Bioactive insulin was successfully released from the PLGA particles within the scaffold, and the size of the particles as well as the release kinetics of the insulin could be efficiently controlled through Shirasu porous glass premix membrane emulsification technology...
March 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28245809/mesenchymal-stem-cells-and-myoblast-differentiation-under-hgf-and-igf-1-stimulation-for-3d-skeletal-muscle-tissue-engineering
#19
R Witt, A Weigand, A M Boos, A Cai, D Dippold, A R Boccaccini, D W Schubert, M Hardt, C Lange, A Arkudas, R E Horch, J P Beier
BACKGROUND: Volumetric muscle loss caused by trauma or after tumour surgery exceeds the natural regeneration capacity of skeletal muscle. Hence, the future goal of tissue engineering (TE) is the replacement and repair of lost muscle tissue by newly generating skeletal muscle combining different cell sources, such as myoblasts and mesenchymal stem cells (MSCs), within a three-dimensional matrix. Latest research showed that seeding skeletal muscle cells on aligned constructs enhance the formation of myotubes as well as cell alignment and may provide a further step towards the clinical application of engineered skeletal muscle...
February 28, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28242454/generating-favorable-growth-factor-and-protease-release-profiles-to-enable-extracellular-matrix-accumulation-within-an-in-vitro-tissue-engineering-environment
#20
Xiaoqing Zhang, Kyle G Battiston, Rosalind S Labow, Craig A Simmons, J Paul Santerre
Tissue engineering (particularly for the case of load-bearing cardiovascular and connective tissues) requires the ability to promote the production and accumulation of extracellular matrix (ECM) components (e.g., collagen, glycosaminoglycan and elastin). Although different approaches have been attempted in order to enhance ECM accumulation in tissue engineered constructs, studies of underlying signalling mechanisms that influence ECM deposition and degradation during tissue remodelling and regeneration in multi-cellular culture systems have been limited...
February 24, 2017: Acta Biomaterialia
keyword
keyword
71490
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"