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Inflammation and type 2 diabetes

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https://www.readbyqxmd.com/read/28326562/liposome-encapsulated-hemoglobin-accelerates-skin-wound-healing-in-diabetic-db-db-mice
#1
Tsuyoshi Fukui, Akira T Kawaguchi, Susumu Takekoshi, Muneo Miyasaka, Hideaki Sumiyoshi, Rica Tanaka
Since liposome-encapsulated hemoglobin with high O2 affinity (h-LEH, P50 O2  = 10 mm Hg) has been reported to accelerate skin wound healing in normal mice, it was tested in dB/dB mice with retarded wound healing, as seen in human diabetics. Two full-thickness dorsal wounds 6 mm in diameter encompassed by silicone stents were created in dB/dB mice. Two days later (day 2), the animals were randomly assigned to receive intravenous h-LEH (2 mL/kg, n = 7) or saline (2 mL/kg, n = 7). The same treatment was repeated 4 days after wounding (day 4), and the size of the skin lesions was analyzed by photography, surface perfusion was detected by Laser-Doppler imager, and plasma cytokines and chemokines were determined on days 0, 2, 4, and 7, when all animals were euthanized for morphological studies...
March 21, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28323968/impaired-glycine-mia-in-type-2-diabetes-and-potential-mechanisms-contributing-to-glucose-homeostasis
#2
Richard Yan-Do, Patrick E MacDonald
The onset and/or progression of type 2 diabetes (T2D) can be prevented if intervention is early enough. As such, much effort has been placed on the search for indicators predictive of pre-diabetes and disease onset or progression. An increasing body of evidence suggests that changes in plasma glycine may be one such biomarker. Circulating glycine levels are consistently low in patients with T2D. Levels of this non-essential amino acid correlate negatively with obesity and insulin resistance. Plasma glycine correlates positively with glucose disposal, and rises with interventions such as exercise and bariatric surgery that improve glucose homeostasis...
March 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323950/breaking-up-prolonged-sitting-alters-the-postprandial-plasma-lipidomic-profile-of-adults-with-type-2-diabetes
#3
Megan S Grace, Paddy C Dempsey, Parneet Sethi, Piyushkumar A Mundra, Natalie A Mellett, Jacquelyn M Weir, Neville Owen, David W Dunstan, Peter J Meikle, Bronwyn A Kingwell
Context: Postprandial dysmetabolism in type 2 diabetes (T2D) is exacerbated by prolonged sitting, and may trigger inflammation and oxidative stress. It is unknown what impact countermeasures to prolonged sitting have on the postprandial lipidome. Objective: In this study, we investigated the effects of regular interruptions to sitting, compared to prolonged sitting, on the postprandial plasma lipidome. Design: Randomized cross-over experimental trial...
March 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323921/emerging-roles-for-micrornas-in-diabetic-microvascular-disease-novel-targets-for-therapy
#4
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, non-coding 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...
February 17, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/28322845/metformin-like-antidiabetic-cardio-protective-and-non-glycemic-effects-of-naringenin-molecular-and-pharmacological-insights
#5
REVIEW
Annah Nsoaki Nyane, Thabiso Bethwel Tlaila, Tanki Gabriel Malefane, Dudu Edith Ndwandwe, Peter Mark Oroma Owira
Metformin is a widely used drug for the treatment of type 2 diabetes (T2D). Its blood glucose-lowering effects are initially due to inhibition of hepatic glucose production and increased peripheral glucose utilization. Metformin has also been shown to have several beneficial effects on cardiovascular risk factors and it is the only oral antihyperglycaemic agent thus far associated with decreased macrovascular complications in patients with diabetes. Adenosine Monophosphate Activated-Protein Kinase (AMPK) is a major cellular regulator of lipid and glucose metabolism...
March 18, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28322071/an-additional-bolus-of-rapid-acting-insulin-to-normalise-postprandial-cardiovascular-risk-factors-following-a-high-carbohydrate-high-fat-meal-in-patients-with-type-1-diabetes-a-randomised-controlled-trial
#6
Matthew D Campbell, Mark Walker, Ramzi A Ajjan, Karen M Birch, Javier T Gonzalez, Daniel J West
AIM: To evaluate an additional rapid-acting insulin bolus on postprandial lipaemia, inflammation and pro-coagulation following high-carbohydrate high-fat feeding in people with type 1 diabetes. METHODS: A total of 10 males with type 1 diabetes [HbA1c 52.5 ± 5.9 mmol/mol (7.0% ± 0.5%)] underwent three conditions: (1) a low-fat (LF) meal with normal bolus insulin, (2), a high-fat (HF) meal with normal bolus insulin and (3) a high-fat meal with normal bolus insulin with an additional 30% insulin bolus administered 3-h post-meal (HFA)...
March 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28320465/reduced-microbial-diversity-in-adult-survivors-of-childhood-acute-lymphoblastic-leukemia-and-microbial-associations-with-increased-immune-activation
#7
Ling Ling Chua, Reena Rajasuriar, Mohamad Shafiq Azanan, Noor Kamila Abdullah, Mei San Tang, Soo Ching Lee, Yin Ling Woo, Yvonne Ai Lian Lim, Hany Ariffin, P'ng Loke
BACKGROUND: Adult survivors of childhood cancers such as acute lymphoblastic leukemia (ALL) have health problems that persist or develop years after cessation of therapy. These late effects include chronic inflammation-related comorbidities such as obesity and type 2 diabetes, but the underlying cause is poorly understood. RESULTS: We compared the anal microbiota composition of adult survivors of childhood ALL (N = 73) with healthy control subjects (N = 61)...
March 20, 2017: Microbiome
https://www.readbyqxmd.com/read/28315336/streptozotocin-produces-oxidative-stress-inflammation-and-decreases-bdnf-concentrations-to-induce-apoptosis-of-rin5f-cells-and-type-2-diabetes-mellitus-in-wistar-rats
#8
Siresha Bathina, Nanduri Srinivas, Undurti N Das
BACKGROUND: Neurodegenerative disorders, such as deficits in learning, memory and cognition and Alzheimer's disease are associated with diabetes mellitus. Brain-derived neurotrophic factor (BDNF) is a neurotrophic factor and is known to possess anti-obesity, anti-diabetic actions and is believed to have a role in memory and Alzheimer's disease. OBJECTIVE: To investigate whether STZ can reduce BDNF production by rat insulinoma (RIN5F) cells in vitro and decrease BDNF levels in the pancreas, liver and brain in vivo...
March 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28303724/non-alcoholic-fatty-liver-disease-nafld-pathogenesis-classification-and-effect-on-drug-metabolizing-enzymes-and-transporters
#9
Enoch Cobbina, Fatemeh Akhlaghi
Non-alcoholic fatty liver disease (NAFLD) is a spectrum of liver disorders. It is defined by the presence of steatosis in more than 5% of hepatocytes with little or no alcohol consumption. Insulin resistance, the metabolic syndrome or type 2 diabetes and genetic variants of PNPLA3 or TM6SF2 seem to play a role in the pathogenesis of NAFLD. The pathological progression of NAFLD follows tentatively a "three-hit" process namely steatosis, lipotoxicity and inflammation. The presence of steatosis, oxidative stress and inflammatory mediators like TNF-α and IL-6 has been implicated in the alterations of nuclear factors such as CAR, PXR, PPAR-α in NAFLD...
March 17, 2017: Drug Metabolism Reviews
https://www.readbyqxmd.com/read/28303680/serum-adipocyte-fatty-acid-binding-protein-levels-associate-with-peripheral-arterial-disease-in-women-not-in-men-with-type-2-diabetes
#10
Min Ding, Jian-Ying Shi, Yun-Zhi Xing, Bei Sun, Qian-Hua Fang, Jing-Yun Zhang, Qiu-Mei Zhang, Li-Ming Chen, De-Min Yu, Chun-Jun Li
BACKGROUNDS: Adipocyte fatty acid-binding protein (A-FABP) has been recognized an important player in macrophage cholesterol trafficking and inflammation, might promote the development of atherosclerosis. To further elucidate the role of A-FABP in atherosclerosis in diabetes, we investigated the relationship between serum A-FABP levels and peripheral arterial disease (PAD) in patients with type 2 diabetes (T2DM). METHODS: A total of 488 inpatients with T2DM were enrolled in this study (254 men and 234 women, mean age, 57...
March 17, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28303409/cardiovascular-inflammation-is-reduced-with-methotrexate-in-diabetes
#11
Adrian Quan, Yi Pan, Krishna K Singh, John Polemidiotis, Hwee Teoh, Howard Leong-Poi, Subodh Verma
Diabetes increases the risk of vascular events and mortality. While earlier type 2 diabetes trials demonstrated that intensive glucose lowering reduces microvascular complications, it is only recently that treatment with some of the newer antihyperglycemic agents has been associated with macrovascular benefits. We report herein that db/db mice concomitantly fed the Western diet and treated with the anti-inflammatory agent methotrexate display a less aggressive inflammatory (lower serum IL-1β, IL-6, SDF-1, and TNFα levels; higher circulating adiponectin, IL-12p70 and IL-10 concentrations; lower aortic VCAM-1 levels) profile than their saline-treated counterpart...
March 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28302726/the-rna-binding-protein-tristetraprolin-ttp-is-a-critical-negative-regulator-of-the-nlrp3-inflammasome
#12
Moritz Haneklaus, John D O'Neil, Andrew R Clark, Seth L Masters, Luke A J O'Neill
The NLRP3 inflammasome is a central regulator of inflammation in many common diseases, including atherosclerosis and Type 2 diabetes, driving the production of pro-inflammatory mediators such as IL-1β and IL-18. Due to its function as an inflammatory gatekeeper, expression and activation of NLRP3 need to be tightly regulated. In this study, we highlight novel post-transcriptional mechanisms that can modulate NLRP3 expression. We have identified the RNA-binding protein Tristetraprolin (TTP) as a negative regulator of NLRP3 in human macrophages...
March 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28295931/salsalate-improves-glycemia-in-overweight-persons-with-diabetes-risk-factors-of-stable-statin-treated-cardiovascular-disease-a-30-month-randomized-placebo-controlled-trial
#13
Ninad Salastekar, Tanvi Desai, Thomas Hauser, Ernst J Schaefer, Kristen Fowler, Stacey Joseph, Steven Shoelson, Allison B Goldfine
Obesity related sub-acute chronic inflammation contributes to type 2 diabetes and atherosclerosis (1,2) . Multiple studies target inflammation to reduce dysglycemia and/or coronary heart disease (CHD) using diverse anti-inflammatory approaches. Several show salsalate, a pro-drug of salicylate, improves glycemia in type 2 diabetes, obesity, or impaired glucose tolerance. Durability of glycemic efficacy and safety of salsalate remains less well understood.
March 14, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28295415/adipose-tissue-nad-biology-in-obesity-and-insulin-resistance-from-mechanism-to-therapy
#14
REVIEW
Shintaro Yamaguchi, Jun Yoshino
Nicotinamide adenine dinucleotide (NAD(+) ) biosynthetic pathway, mediated by nicotinamide phosphoribosyltransferase (NAMPT), a key NAD(+) biosynthetic enzyme, plays a pivotal role in controlling many biological processes, such as metabolism, circadian rhythm, inflammation, and aging. Over the past decade, NAMPT-mediated NAD(+) biosynthesis, together with its key downstream mediator, namely the NAD(+) -dependent protein deacetylase SIRT1, has been demonstrated to regulate glucose and lipid metabolism in a tissue-dependent manner...
March 15, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28291838/level-and-correlates-of-physical-activity-and-sedentary-behavior-in-patients-with-type-2-diabetes-a-cross-sectional-analysis-of-the-italian-diabetes-and-exercise-study_2
#15
Stefano Balducci, Valeria D'Errico, Jonida Haxhi, Massimo Sacchetti, Giorgio Orlando, Patrizia Cardelli, Nicolina Di Biase, Lucilla Bollanti, Francesco Conti, Silvano Zanuso, Antonio Nicolucci, Giuseppe Pugliese
OBJECTIVE: Patients with type 2 diabetes usually show reduced physical activity (PA) and increased sedentary (SED)-time, though to a varying extent, especially for low-intensity PA (LPA), a major determinant of daily energy expenditure that is not accurately captured by questionnaires. This study assessed the level and correlates of PA and SED-time in patients from the Italian Diabetes and Exercise Study_2 (IDES_2). METHODS: Three-hundred physically inactive and sedentary patients with type 2 diabetes were enrolled in the IDES_2 to be randomized to an intervention group, receiving theoretical and practical exercise counseling, and a control group, receiving standard care...
2017: PloS One
https://www.readbyqxmd.com/read/28287627/plasma-free-amino-acid-profiles-are-predictors-of-cancer-and-diabetes-development
#16
REVIEW
X Bi, C J Henry
Type 2 diabetes (T2D) and cancers are two major causes of morbidity and mortality worldwide. Nowadays, there is convincing evidence of positive associations between T2D and the incidence or prognosis of a wide spectrum of cancers, for example, breast, colon, liver and pancreas. Many observational studies suggest that certain medications used to treat hyperglycemia (or T2D) may affect cancer cells directly or indirectly. The potential mechanisms of the direct T2D cancer links have been hypothesized to be hyperinsulinemia, hyperglycemia and chronic inflammation; however, the metabolic pathways that lead to T2D and cancers still remain elusive...
March 13, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28285710/role-of-immune-cells-in-obesity-induced-low-grade-inflammation-and-insulin-resistance
#17
REVIEW
Ambreen Asghar, Nadeem Sheikh
The frequency of obesity is enormously growing worldwide. Obesity results when energy intake exceeds, energy expenditure. Excess adiposity is a major risk factor in the progress of various metabolic disorders accounting insulin resistance, hypertension, Type 2 diabetes, nonalcoholic fatty liver disease, polycystic ovarian disease and several types of cancers. Obesity is characterized by pro-inflammatory condition in which hypertrophied adipose tissue along with immune cells contribute to increase the level of pro-inflammatory cytokines...
March 7, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28285098/role-of-leptin-as-a-link-between-metabolism-and-the-immune-system
#18
REVIEW
Antonio Pérez-Pérez, Teresa Vilariño-García, Patricia Fernández-Riejos, Jenifer Martín-González, Juan José Segura-Egea, Víctor Sánchez-Margalet
Leptin is an adipocyte-derived hormone not only with an important role in the central control of energy metabolism, but also with many pleiotropic effects in different physiological systems. One of these peripheral functions of leptin is a regulatory role in the interplay between energy metabolism and the immune system, being a cornerstone of the new field of immunometabolism. Leptin receptor is expressed throughout the immune system and the regulatory effects of leptin include cells from both the innate and adaptive immune system...
March 4, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28284664/high-baseline-c-reactive-protein-levels-predict-partial-type-2-diabetes-mellitus-remission-after-biliopancreatic-diversion
#19
A Bonaventura, L Liberale, F Carbone, N Scopinaro, G Camerini, F S Papadia, R Cordera, F Dallegri, G F Adami, F Montecucco
BACKGROUND AND AIMS: Several studies demonstrated that surgery can improve inflammation parameters, such as C-reactive protein (CRP). Few biomarkers have been investigated to potentially predict type 2 diabetes mellitus (T2DM) remission. We aimed at determining whether pre-surgery serum CRP levels could predict T2DM remission after 3 years in patients undergoing bariatric surgery, especially biliopancreatic diversion (BPD). METHODS AND RESULTS: This study was conducted from 2007 to 2009 at the Surgical Department of the University of Genoa, Italy...
February 3, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28284063/soybean-polar-lipids-differently-impact-adipose-tissue-inflammation-and-the-endotoxin-transporters-lbp-and-scd14-in-flaxseed-vs-palm-oil-rich-diets
#20
Manon Lecomte, Leslie Couëdelo, Emmanuelle Meugnier, Emmanuelle Loizon, Pascale Plaisancié, Annie Durand, Alain Géloën, Florent Joffre, Carole Vaysse, Marie-Caroline Michalski, Fabienne Laugerette
Obesity and type 2 diabetes are nutritional pathologies, characterized by a subclinical inflammatory state. Endotoxins are now well recognized as an important factor implicated in the onset and maintain of this inflammatory state during fat digestion in high-fat diet. As a preventive strategy, lipid formulation could be optimized to limit these phenomena, notably regarding fatty acid profile and PL emulsifier content. Little is known about soybean polar lipid (SPL) consumption associated to oils rich in saturated FA vs...
February 21, 2017: Journal of Nutritional Biochemistry
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