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https://www.readbyqxmd.com/read/28432400/-the-intestinal-microbiome-and-metabolic-diseases-from-obesity-to-diabetes-and-nonalcoholic-steatohepatitis
#1
S C Bischoff
BACKGROUND: The intestinal microbiome consists of about 10 million genes, many of which encode digestive enzymes. This explains why animal and human experiments revealed that the intestinal microbiome adapts to food intake and optimizes energy harvest from food. This function is considered beneficial in states of lack of food, but following overnutrition, it might support the development of obesity. OBJECTIVES: The relevance of the intestinal microbiome for the pathogenesis of obesity and associated metabolic diseases such as fatty liver disease and type 2 diabetes mellitus and for the clinical management of such diseases shall be discussed...
April 21, 2017: Der Internist
https://www.readbyqxmd.com/read/28432145/bacterial-siderophores-hijack-neutrophil-functions
#2
Piu Saha, Beng San Yeoh, Rodrigo A Olvera, Xia Xiao, Vishal Singh, Deepika Awasthi, Bhagawat C Subramanian, Qiuyan Chen, Madhu Dikshit, Yanming Wang, Carole A Parent, Matam Vijay-Kumar
Neutrophils are the primary immune cells that respond to inflammation and combat microbial transgression. To thrive, the bacteria residing in their mammalian host have to withstand the antibactericidal responses of neutrophils. We report that enterobactin (Ent), a catecholate siderophore expressed by Escherichia coli, inhibited PMA-induced generation of reactive oxygen species (ROS) and neutrophil extracellular traps (NETs) in mouse and human neutrophils. Ent also impaired the degranulation of primary granules and inhibited phagocytosis and bactericidal activity of neutrophils, without affecting their migration and chemotaxis...
April 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28431667/the-potential-and-pitfalls-of-glp-1-receptor-agonists-for-renal-protection-in-type-2-diabetes
#3
Merlin C Thomas
Glucagon-Like Peptide-1 Receptor agonists (GLP-1 RA) offer substantial benefits for the management of glucose levels in type 2 diabetes. In addition, recent data from clinical trials have demonstrated that treatment with Glucagon-Like Peptide-1 Receptor agonists (GLP-1 RA) are also able to reduce new onset macroalbuminuria. These benefits may be consistent with the known effects of GLP-1 RA on traditional risk factors for progressive kidney disease including glucose lowering, blood pressure lowering, reduced insulin levels and weight reduction...
April 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28431559/effects-of-whole-grain-rye-with-and-without-resistant-starch-type-2-supplementation-on-glucose-tolerance-gut-hormones-inflammation-and-appetite-regulation-in-an-11-14-5%C3%A2-hour-perspective-a-randomized-controlled-study-in-healthy-subjects
#4
Jonna C Sandberg, Inger M E Björck, Anne C Nilsson
BACKGROUND: The prevalence of obesity is increasing worldwide and prevention is needed. Whole grain has shown potential to lower the risk of obesity, cardiovascular disease and type 2 diabetes. One possible mechanism behind the benefits of whole grain is the gut fermentation of dietary fiber (DF), e.g. non-starch polysaccharides and resistant starch (RS), in whole grain. The purpose of the study is to investigate the effect of whole grain rye-based products on glucose- and appetite regulation...
April 21, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28431362/rna-aptamer-based-electrochemical-aptasensor-for-c-reactive-protein-detection-using-functionalized-silica-microspheres-as-immunoprobes
#5
Junchun Wang, Jinjin Guo, Junjun Zhang, Wenjuan Zhang, Yuzhong Zhang
C-reactive protein (CRP) is a widely accepted biomarker of cardiovascular disease and inflammation. In this study, a RNA aptamer-based electrochemical sandwich type aptasensor for CRP detection was described using the functionalized silica microspheres as immunoprobes. Silica microspheres (Si MSs), which have good monodispersity and uniform shape, were firstly synthesized. The silica microspheres functionlized with gold nanoparticles (Au NPs) provided large surface area for immobilizing signal molecules (Zinc ions, Zn(2+)) and antibodies (Ab)...
April 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28430628/critical-role-of-matrix-metallopeptidase-9-in-postoperative-cognitive-dysfunction-and-age-dependent-cognitive-decline
#6
Jiangjiang Bi, Weiran Shan, Ailin Luo, Zhiyi Zuo
BACKGROUND: Postoperative cognitive dysfunction (POCD) is a significant clinical syndrome. Neuroinflammation is an important pathological process for POCD. However, it is not clear how systemic inflammation induced by surgery on peripheral tissues or organs is transmitted into the brain. We determined whether matrix metallopeptidase 9 (MMP9), a protein that can increase blood-brain barrier permeability, is critical in this transmission. The role of MMP9 in age-dependent cognitive decline was also determined...
February 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430185/phospholipase-c%C3%AE-1-regulates-p38-mapk-activity-and-skin-barrier-integrity
#7
Kaori Kanemaru, Yoshikazu Nakamura, Kengo Totoki, Takatsugu Fukuyama, Madoka Shoji, Hisae Kaneko, Kanako Shiratori, Atsuko Yoneda, Takafumi Inoue, Yoichiro Iwakura, Kenji Kabashima, Kiyoko Fukami
Keratinocytes undergo a unique type of programmed cell death known as cornification, which leads to the formation of the stratum corneum (SC), the main physical barrier of the epidermis. A defective epidermal barrier is a hallmark of the two most common inflammatory skin disorders, psoriasis, and atopic dermatitis. However, the detailed molecular mechanisms of skin barrier formation are not yet fully understood. Here, we showed that downregulation of phospholipase C (PLC) δ1, a Ca(2+)-mobilizing and phosphoinositide-metabolizing enzyme abundantly expressed in the epidermis, impairs the barrier functions of the SC...
April 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28429097/immunomodulatory-and-therapeutic-role-of-cinnamomum-verum-extracts-in-collagen-induced-arthritic-balb-c-mice
#8
Mirza Muhammad Fahd Qadir, Attya Bhatti, Muhammad Usman Ashraf, Mansur Abdullah Sandhu, Sidrah Anjum, Peter John
ETHNOPHARMACOLOGICAL RELEVANCE: Cinnamomum verum (CV), also known as 'Dalchini', is the dry bark of the Cinnamomum verum (L.) plant, and has been used as a traditional Pakistani medicine to alleviate pain and inflammation in patients suffering from arthritic rheumatism. It contains alkaloids, triterpenes, Cinnamaldehyde and other volatile oils. The aim of the present study was to investigate the underlying biological effect of ethyl alcohol (EtOH) and methyl alcohol (MeOH) extracts from CV on collagen type-II induced arthritic (CIA) mice...
April 20, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28428802/regulation-of-th2-responses-by-different-cell-types-expressing-the-interleukin-31-receptor
#9
Saburo Saito, Ayana Aoki, Iwao Arai, Shinya Takaishi, Haruyasu Ito, Nobutake Akiyama, Hiroshi Kiyonari
BACKGROUND: Interleukin-31 (IL-31) is a recently identified cytokine produced by Th2 cells that is involved in the development of atopic dermatitis-induced skin inflammation and pruritus. Its receptor, IL-31RA, is expressed by a number of cell types, including epithelial cells, eosinophils, and activated monocytes and macrophages. To date, however, the regulation of Th2 responses by distinct cell types and tissues expressing IL-31RA has not been well studied. METHODS: In this study, Cry j 2, one of the major allergens of Japanese cedar pollen, was administered to IL-31RA-deficient or wild-type (WT) mice via nasal or intraperitoneal injection for induction of specific Th2 responses...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28428194/detrimental-effects-of-centrally-administered-angiotensin-ii-are-enhanced-in-a-mouse-model-of-alzheimer-disease-independently-of%C3%A2-blood-pressure
#10
Koki Takane, Yu Hasegawa, Bowen Lin, Nobutaka Koibuchi, Cheng Cao, Takashi Yokoo, Shokei Kim-Mitsuyama
BACKGROUND: The significance of brain angiotensin II in Alzheimer disease (AD) is unclear. METHODS AND RESULTS: To examine the role of brain angiotensin II in AD, intracerebroventricular angiotensin II infusion was performed on 5XFAD mice, a mouse model of AD, and wild-type mice, and the detrimental effects of brain angiotensin II was compared between the 2 strains of mice. Intracerebroventricular angiotensin II infusion significantly impaired cognitive function in 5XFAD mice but not in wild-type mice...
April 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28427390/advanced-glycation-end-products-decreases-expression-of-endothelial-nitric-oxide-synthase-through-oxidative-stress-in-human-coronary-artery-endothelial-cells
#11
Xiaomei Ren, Liqun Ren, Qin Wei, Hua Shao, Long Chen, Naifeng Liu
BACKGROUND: Advanced glycation end-products (AGEs) are elevated under diabetic conditions and associated with insulin resistance, endothelial dysfunction and vascular inflammation in humans. It has been demonstrated that AGEs evoke oxidative and inflammatory reactions in endothelial cells through the interaction with a receptor for AGEs (RAGE). Here, we aimed to identify the cellular mechanisms by which AGEs exacerbate the endothelial dysfunction in human coronary artery endothelial cells (HCAECs)...
April 20, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28427061/emerging-insights-into-pathogenesis
#12
Edoardo Midena, Elisabetta Pilotto
Diabetic retinopathy (DR) is a frequent complication of diabetes mellitus (DM). Persistent hyperglycemia leads to the activation of multiple cellular pathways involved in the pathogenesis of DR, resulting in increased inflammation, oxidative stress, and vascular dysfunction. DR has been considered a "chronic, low-grade inflammatory disease of the retina". However, an increasing body of evidence suggests that inflammation and neurodegeneration both occur in human diabetes even before the development of clinical signs of DR...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28426699/anti-il-20-monoclonal-antibody-inhibited-inflammation-and-protected-against-cartilage-destruction-in-murine-models-of-osteoarthritis
#13
Yu-Hsiang Hsu, Ya-Yu Yang, Man-Hsiang Huwang, Yun-Han Weng, I-Ming Jou, Po-Tin Wu, Tain-Yu Lin, Li-Wha Wu, Ming-Shi Chang
Osteoarthritis (OA) is a degenerative joint disease characterized by progressive destruction of articular cartilage. Interleukin (IL)-20 is a proinflammatory cytokine involved in the pathogenesis of rheumatoid arthritis. We investigated the role of IL-20 in OA and evaluated whether anti-IL-20 antibody (7E) treatment attenuates disease severity in murine models of surgery-induced OA. Immunohistochemical staining was used to detect IL-20 and its receptors expression in synovial tissue and cartilage from OA patients, and in OA synovial fibroblasts (OASFs) and chondrocytes (OACCs) from rodents with surgery-induced OA...
2017: PloS One
https://www.readbyqxmd.com/read/28425844/the-role-of-glucose-6-phosphate-dehydrogenase-in-adipose-tissue-inflammation-in-obesity
#14
Yoon Jeong Park, Sung Sik Choe, Jee Hyung Sohn, Jae Bum Kim
Obesity is closely associated with metabolic diseases including type 2 diabetes. One hallmark characteristics of obesity is chronic inflammation that is coordinately controlled by complex signaling networks in adipose tissues. Compelling evidence indicates that reactive oxygen species (ROS) and its related signaling pathways play crucial roles in the progression of chronic inflammation in obesity. The pentose phosphate pathway (PPP) is an anabolic pathway that utilizes the glucoses to generate molecular building blocks and reducing equivalents in the form of NADPH...
February 8, 2017: Adipocyte
https://www.readbyqxmd.com/read/28425181/effects-of-different-aerobic-exercise-frequencies-on%C3%A2-streptozotocin-nicotinamide-induced-type-2-diabetic-rats-continuous-versus-short-bouts-and-weekend-warrior-exercises
#15
Nuray Alaca, Serap Uslu, Guldal Gulec Suyen, Umit Ince, Mustafa Serteser, Hızır Kurtel
BACKGROUND: Exercise training is known to exert multiple beneficial effects on type 2 diabetes mellitus (T2DM). In this study, we aimed at exploring the effects of aerobic exercise frequencies on diabetic parameters, the histopathological structure of skeletal muscle, diabetic myopathy and mitochondrial enzyme activities in an experimental model of T2DM. METHODS: T2DM was induced by using nicotinamide (110 mg/kg) and streptozotocin (65 mg/kg) in Sprague Dawley rats (n: 35)...
April 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28422672/aiimds-an-integrated-framework-of-automatic-idiopathic-inflammatory-myopathy-diagnosis-for-muscle
#16
Manish Sapkota, Fujun Liu, Yuanpu Xie, Hai Su, Fuyong Xing, Lin Yang
Idiopathic Inflammatory Myopathy (IIM) is a common skeletal muscle disease that relates to weakness and inflammation of muscle. Early diagnosis and prognosis of different types of IIMs will guide the effective treatment. Interpretation of digitized images of the cross section muscle biopsy, which is currently done manually, provides the most reliable diagnostic information. With the increasing volume of images, the management and manual interpretation of the digitized muscle images suffer from low efficiency and high interobserver variabilities...
April 13, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28422570/an-induced-adipocyte-sheet-reduces-inflammatory-reactions-during-remodeling-of-xenogeneic-scaffolds-in-vivo
#17
Tong Yi, Qiang Wang, Fan Fan, Gouhui Fan
Surgical therapy of cardiovascular diseases frequently requires replacement of diseased tissues with prosthetic devices or grafts. Calcification is the main reason for the degeneration of implanted grafts. However, some factors reduce stenosis and attenuate calcification of implanted grafts. In this study, we used an autologous induced adipocyte cell-sheet (IACS) as a drug delivery system to determine whether its secretion ability has a beneficial effect on the remodeling process of grafts in a rat subcutaneous model...
April 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28422412/histological-evolution-of-bk-virus-associated-nephropathy-importance-of-integrating-clinical-and-pathological-findings
#18
Cinthia B Drachenberg, John C Papadimitriou, Muhammad R Chaudhry, Richard Ugarte, Manju Mavanur, Beje Thomas, Charles Cangro, Nadiesda Costa, Emilio Ramos, Matthew R Weir, Abdolreza Haririan
Long term clinicopathological studies of BK-associated nephropathy (PyVAN) are not available. We studied 206 biopsies (71 patients), followed 3.09±1.46y after immunosuppression reduction. The biopsy features (% SV40+staining and inflammation +/- acute rejection) were correlated with viral load dynamics and serum creatinine to define the clinicopathological status (PyVCPS). Incidence of acute rejection was 28% in the 2(nd) biopsy and 50% subsequently (25% mixed TCMR+AMR; rejection overall affected 38% of patients (>50% AMR)...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28422079/synthetic-fluororutaecarpine-inhibits-inflammatory-stimuli-and-activates-endothelial-transient-receptor-potential-vanilloid-type-1
#19
Chi-Ming Lee, Jiun-An Gu, Tin-Gan Rau, Chi Wang, Chiao-Han Yen, Shih-Hao Huang, Feng-Yen Lin, Chun-Mao Lin, Sheng-Tung Huang
The natural product, rutaecarpine (RUT), is the main effective component of Evodia rutaecarpa which is a widely used traditional Chinese medicine. It has vasodilation, anticoagulation, and anti-inflammatory activities. However, further therapeutic applications are limited by its cytotoxicity. Thus, a derivative of RUT, 10-fluoro-2-methoxyrutaecarpine (F-RUT), was designed and synthesized that showed no cytotoxicity toward RAW264.7 macrophages at 20 μM. In an anti-inflammation experiment, it inhibited the production of nitric oxide (NO) and tumor necrosis factor (TNF)-α in lipopolysaccharide (LPS)-stimulated RAW264...
April 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28421878/cerebrovascular-injury-in-cryptococcal-meningitis
#20
Ajay Kumar Mishra, Vanjare Harshad Arvind, Divya Muliyil, Cijoy K Kuriakose, Anu Anna George, Reka Karuppusami, Ronald Albert Benton Carey, Sunithi Mani, Samuel George Hansdak
Background Cryptococcal meningitis continues to be one of the common causes of chronic central nervous system infection worldwide. Individuals with cryptococcal meningitis can occasionally present with small vessel vasculitis causing infarcts primarily in the basal ganglia, internal capsule, and thalamus. Literature regarding patterns of cerebrovascular injury among patients with cryptococcal meningitis is scanty, and outcome following these vascular involvements is unknown. Aim To study the clinical profile, imaging findings, and details of vascular territory involved among patients admitted with cryptococcal meningitis and central nervous system infarct in a tertiary care center from India...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
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