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https://www.readbyqxmd.com/read/28214071/lipocalin-2-a-master-mediator-of-intestinal-and-metabolic-inflammation
#1
REVIEW
Alexander R Moschen, Timon E Adolph, Romana R Gerner, Verena Wieser, Herbert Tilg
Lipocalin-2 (LCN2), also known as neutrophil gelatinase-associated lipocalin (NGAL), is released by various cell types and is an attractive biomarker of inflammation, ischemia, infection, and kidney damage. Both intestinal and metabolic inflammation, as observed in obesity and related disorders, are associated with increased LCN2 synthesis. While LCN2 in the intestinal tract regulates the composition of the gut microbiota and shows anti-inflammatory activities, it also exhibits proinflammatory activities in other experimental settings...
February 14, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28213010/the-pathogenesis-and-pathophysiology-of-gestational-diabetes-mellitus-deductions-from-a-three-part-longitudinal-metabolomics-study-in-china
#2
REVIEW
Kai P Law, Hua Zhang
Gestational diabetes mellitus (GDM) is a form of diabetes that is first recognised during pregnancy, with no evidence of pre-existing type 1 or type 2 diabetes. The prevalence of GDM has been rising steadily over the past few decades, coinciding with the ongoing epidemic of obesity and type 2 diabetes. Although GDM normally disappears after delivery, women who have been previously diagnosed with GDM are at a greater risk of developing gestational diabetes in subsequent pregnancies, and type 2 diabetes later in life...
February 14, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28212715/novel-biomarkers-of-heart-failure
#3
A Savic-Radojevic, M Pljesa-Ercegovac, M Matic, D Simic, S Radovanovic, T Simic
Although substantial improvements have been made in majority of cardiac disorders, heart failure (HF) remains a major health problem, with both increasing incidence and prevalence over the past decades. For that reason, the number of potential biomarkers that could contribute to diagnosis and treatment of HF patients is, almost exponentially, increasing over the recent years. The biomarkers that are, at the moment, more or less ready for use in everyday clinical practice, reflect different pathophysiological processes present in HF...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28212524/role-of-nrf2-and-protective-effects-of-metformin-against-tobacco-smoke-induced-cerebrovascular-toxicity
#4
Shikha Prasad, Ravi K Sajja, Mohammad Abul Kaisar, Jee Hyun Park, Heidi Villalba, Taylor Liles, Thomas Abbruscato, Luca Cucullo
Cigarette smoking (CS) is associated with vascular endothelial dysfunction in a causative way primarily related to the TS content of reactive oxygen species (ROS), nicotine, and inflammation. TS promotes glucose intolerance and increases the risk of developing type-2 diabetes mellitus (2DM) with which it shares other pathogenic traits including the high risk of cerebrovascular and neurological disorders like stroke via ROS generation, inflammation, and blood-brain barrier (BBB) impairment. Herein we provide evidence of the role played by nuclear factor erythroid 2-related factor (Nrf2) in CS-induced cerebrobvascular/BBB impairments and how these cerebrovascular harmful effects can be circumvented by the use of metformin (MF; a widely prescribed, firstline anti-diabetic drug) treatment...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28210868/cognitive-impairment-and-dementia-a-new-emerging-complication-of-type-2-diabetes-the-diabetologist-s-perspective
#5
Rafael Simó, Andreea Ciudin, Olga Simó-Servat, Cristina Hernández
Type 2 diabetes mellitus (T2D) and Alzheimer's disease (AD) are two of the most common diseases of aging around the world. Given the frequency with which T2D and AD occur, the notion that people with T2D may be at increased risk for AD has large societal consequences, and understanding the mechanistic links between these diseases is imperative for the development of effective AD prevention and treatment strategies. Apart from being an accelerator of AD, T2D is associated with a progressive cognitive decline...
February 16, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28209760/glucoraphanin-ameliorates-obesity-and-insulin-resistance-through-adipose-tissue-browning-and-reduction-of-metabolic-endotoxemia-in-mice
#6
Naoto Nagata, Liang Xu, Susumu Kohno, Yusuke Ushida, Yudai Aoki, Ryohei Umeda, Nobuo Fuke, Fen Zhuge, Yinhua Ni, Mayumi Nagashimada, Chiaki Takahashi, Hiroyuki Suganuma, Shuichi Kaneko, Tsuguhito Ota
Low-grade sustained inflammation links obesity to insulin resistance and nonalcoholic fatty liver disease (NAFLD). However, therapeutic approaches to improve systemic energy balance and chronic inflammation in obesity are limited. Pharmacological activation of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) alleviates obesity and insulin resistance in mice; however, Nrf2 inducers are not clinically available owing to safety concerns. Thus, we examined whether dietary glucoraphanin, a stable precursor of the Nrf2 inducer sulforaphane, ameliorates systemic energy balance, chronic inflammation, insulin resistance, and NAFLD in high-fat diet (HFD)-fed mice...
February 16, 2017: Diabetes
https://www.readbyqxmd.com/read/28207896/rna-seq-analysis-of-chikungunya-virus-infection-and-identification-of-granzyme-a-as-a-major-promoter-of-arthritic-inflammation
#7
Jane A C Wilson, Natalie A Prow, Wayne A Schroder, Jonathan J Ellis, Helen E Cumming, Linden J Gearing, Yee Suan Poo, Adam Taylor, Paul J Hertzog, Francesca Di Giallonardo, Linda Hueston, Roger Le Grand, Bing Tang, Thuy T Le, Joy Gardner, Suresh Mahalingam, Pierre Roques, Phillip I Bird, Andreas Suhrbier
: Chikungunya virus (CHIKV) is an arthritogenic alphavirus causing epidemics of acute and chronic arthritic disease. Herein we describe a comprehensive RNA-Seq analysis of feet and lymph nodes at peak viraemia (day 2 post infection), acute arthritis (day 7) and chronic disease (day 30) in the CHIKV adult wild-type mouse model. Genes previously shown to be up-regulated in CHIKV patients were also up-regulated in the mouse model. CHIKV sequence information was also obtained with up to ≈8% of the reads mapping to the viral genome; however, no adaptive viral genome changes were apparent...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28203472/cyanoacrylate-associated-foreign-body-granulomatous-gastritis-a-report-of-three-cases
#8
Gunes Guner, Olcay Kurtulan, Taylan Kav, Cenk Sokmensuer, Gokhan Gedikoglu, Aytekin Akyol
Granulomas are rarely seen in gastric biopsies mostly as an involvement of granulomatous diseases like sarcoidosis, Crohn's disease, infections, neoplasms, and vasculitis. Here, we claim cyanoacrylate as a foreign body type granuloma-causing agent in the stomach after vascular embolisation. We present cyanoacrylate associated gastric changes of three cases: two endoscopic biopsies and one gastric resection. In two cases, cyanoacrylate associated ulcers and granulomatous inflammation were observed in gastric mucosal biopsies following endoscopic examination after 7 months and 6 years of the glue injections, respectively...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28202017/association-between-metformin-use-and-below-the-knee-arterial-calcification-score-in-type-2-diabetic-patients
#9
Aurélien Mary, Agnes Hartemann, Sophie Liabeuf, Carole Elodie Aubert, Salim Kemel, Joe Elie Salem, Philippe Cluzel, Aurélie Lenglet, Ziad A Massy, Jean-Daniel Lalau, Romuald Mentaverri, Olivier Bourron, Saïd Kamel
BACKGROUND: Vascular calcification (VC) is common in type 2 diabetes, and is associated with cardiovascular complications. Recent preclinical data suggest that metformin inhibits VC both in vitro and in animal models. However, metformin's effects in patients with diabetic VC have not previously been characterized. The present study investigated the association between metformin use and lower-limb arterial calcification in patients with type 2 diabetes and high cardiovascular risk. METHODS: The DIACART cross-sectional cohort study included 198 patients with type 2 diabetes but without severe chronic kidney disease...
February 15, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28198987/the-content-of-mucin-muc-2-3-and-4-antigens-in-the-bronchial-mucosa-membrane-of-chronic-obstructive-pulmonary-disease-patients-during-acute-exacerbation-initial-report
#10
Svetlana Kovalenko, Andrey Dorofieiev
INTRODUCTION: Changes in mucin production and dyscrinia are common features of inflammation in chronic obstructive pulmonary disease (COPD). Immunohistochemical assessment of MUC-2, MUC-3, MUC-4 expression in the integumentary epithelium, goblet cells, the epithelium of mucous glands and stroma fusiform cells of the bronchial mucosa of COPD patients during an infectious and noninfectious exacerbation was performed. MATERIAL AND METHODS: 30 patients with stage III COPD were enrolled to the study...
2017: Adv Respir Med
https://www.readbyqxmd.com/read/28196866/sglt2-expression-is-increased-in-human-diabetic-nephropathy-sglt2-inhibition-decreases-renal-lipid-accumulation-inflammation-and-the-development-of-nephropathy-in-diabetic-mice
#11
Xiaoxin X Wang, Jonathan Levi, Yuhuan Luo, Komuraiah Myakala, Michal Herman-Edelstein, Liru Qiu, Dong Wang, Yingqiong Peng, Almut Grenz, Scott Lucia, Evgenia Dobrinskikh, Vivette D D'Agati, Hermann Koepsell, Jeffrey B Kopp, Avi Rosenberg, Moshe Levi
There is very limited human renal sodium gradient dependent glucose transporter protein SGLT2 mRNA and protein expression data reported in the literature. Aim 1 of this study was to determine SGLT2 mRNA and protein levels in human and animal models of diabetic nephropathy. We have found that the expression of SGLT2 mRNA and protein is increased in renal biopsies from human subjects with diabetic nephropathy. This is in contrast to db-db mice which had no changes in renal SGLT-2 protein expression. Furthermore, the effect of SGLT2 inhibition on renal lipid content and inflammation is not known...
February 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28196856/vardenafil-reduces-macrophage-pro-inflammatory-overresponses-in-cystic-fibrosis-through-pde5-and-cftr-dependent-mechanisms
#12
Sabrina Noel, Nadtha Panin, Mathilde Beka, Barbara Dhooghe, Francois Huaux, Teresinha Leal
Chronic inflammation that progressively disrupts the lung tissue is a hallmark of Cystic Fibrosis (CF). In mice, vardenafil, an inhibitor of phosphodiesterase type 5 (PDE5), restores transepithelial ion transport and corrects mislocalization of the most common CF mutation, F508del-CFTR. It also reduces lung pro-inflammatory responses in mice and in patients with CF. To test the hypothesis that macrophages are target effector cells of the immunomodulatory effect of vardenafil, we isolated lung macrophages from mice homozygous for the F508del mutation or invalidated for the cftr gene and from their corresponding wild-type littermates...
February 14, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28196763/il-33-dysregulates-regulatory-t-treg-cells-and-impairs-established-immunological-tolerance-in-the-lungs
#13
Chien-Chang Chen, Takao Kobayashi, Koji Iijima, Fan-Chi Hsu, Hirohito Kita
BACKGROUND: Airway exposure to environmental antigens generally leads to immunological tolerance. A fundamental question remains: why is airway tolerance compromised in patients with allergic airway diseases? Interleukin (IL)-33 promotes innate and adaptive type 2 immunity and may provide the answer to this question. OBJECTIVE: The goal of this study was to investigate the roles IL-33 plays in altering regulatory T (Treg) cells in the lungs and in affecting previously established airway immunological tolerance...
February 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28196086/nopal-feeding-reduces-adiposity-intestinal-inflammation-and-shifts-the-cecal-microbiota-and-metabolism-in-high-fat-fed-rats
#14
Sofia Moran-Ramos, Xuan He, Elizabeth L Chin, Armando R Tovar, Nimbe Torres, Carolyn M Slupsky, Helen E Raybould
Nopal is a cactus plant widely consumed in Mexico that has been used in traditional medicine to aid in the treatment of type-2 diabetes. We previously showed that chronic consumption of dehydrated nopal ameliorated hepatic steatosis in obese (fa/fa) rats; however, description of the effects on other tissues is sparse. The aim of the present study was to investigate the effects of nopal cladode consumption on intestinal physiology, microbial community structure, adipose tissue, and serum biochemistry in diet-induced obese rats...
2017: PloS One
https://www.readbyqxmd.com/read/28195879/fibrin-associated-ebv-positive-large-b-cell-lymphoma-an-indolent-neoplasm-with-features-distinct-from-diffuse-large-b-cell-lymphoma-associated-with-chronic-inflammation
#15
Daniel F Boyer, Penelope A McKelvie, Laurence de Leval, Kerstin L Edlefsen, Young-Hyeh Ko, Zachary A Aberman, Alexandra E Kovach, Aneal Masih, Ha T Nishino, Lawrence M Weiss, Alan K Meeker, Valentina Nardi, Maryknoll Palisoc, Lina Shao, Stefania Pittaluga, Judith A Ferry, Nancy Lee Harris, Aliyah R Sohani
Incidental cases of localized fibrin-associated Epstein-Barr virus (EBV)+ large B-cell proliferations have been described at unusual anatomic sites and have been included in the category of diffuse large B-cell lymphoma associated with chronic inflammation (DLBCL-CI) in the WHO Classification. We describe 12 cases and review the literature to define their clinicopathologic spectrum and compare features with typical cases of DLBCL-CI. Median age was 55.5 years with a M:F ratio of 3. In all 12 cases, the lymphoma was an incidental microscopic finding involving atrial myxomas (n=3), thrombi associated with endovascular grafts (n=3), chronic hematomas (n=2), and pseudocysts (n=4)...
March 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28195844/the-efficacy-and-safety-of-660-nm-and-411-to-777-nm-light-emitting-devices-for-treating-wrinkles
#16
Chan Hee Nam, Byung Cheol Park, Myung Hwa Kim, Eun Hee Choi, Seung Phil Hong
BACKGROUND: Low-level light therapy (LLLT) using light-emitting diodes (LEDs) is considered to be helpful for skin regeneration and anti-inflammation. OBJECTIVE: To evaluate the efficacy and safety of 2 types of LLLTs using 660 nm-emitting red LEDs and 411 to 777 nm-emitting white LEDs in the treatment of facial wrinkles. MATERIALS AND METHODS: A prospective, randomized, double-blinded, comparative clinical trial involving 52 adult female subjects was performed...
February 9, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28194024/regnase-1-a-rapid-response-ribonuclease-regulating-inflammation-and-stress-responses
#17
REVIEW
Renfang Mao, Riyun Yang, Xia Chen, Edward W Harhaj, Xiaoying Wang, Yihui Fan
RNA-binding proteins (RBPs) are central players in post-transcriptional regulation and immune homeostasis. The ribonuclease and RBP Regnase-1 exerts critical roles in both immune cells and non-immune cells. Its expression is rapidly induced under diverse conditions including microbial infections, treatment with inflammatory cytokines and chemical or mechanical stimulation. Regnase-1 activation is transient and is subject to negative feedback mechanisms including proteasome-mediated degradation or mucosa-associated lymphoid tissue 1 (MALT1) mediated cleavage...
February 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28194004/genetic-contributions-to-self-reported-tiredness
#18
V Deary, S P Hagenaars, S E Harris, W D Hill, G Davies, D C M Liewald, A M McIntosh, C R Gale, I J Deary
Self-reported tiredness and low energy, often called fatigue, are associated with poorer physical and mental health. Twin studies have indicated that this has a heritability between 6 and 50%. In the UK Biobank sample (N=108 976), we carried out a genome-wide association study (GWAS) of responses to the question, 'Over the last two weeks, how often have you felt tired or had little energy?' Univariate GCTA-GREML found that the proportion of variance explained by all common single-nucleotide polymorphisms for this tiredness question was 8...
February 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28193830/il-6-regulates-m2-polarization-and-local-proliferation-of-adipose-tissue-macrophages-in-obesity
#19
Julia Braune, Ulrike Weyer, Constance Hobusch, Jan Mauer, Jens C Brüning, Ingo Bechmann, Martin Gericke
Obesity is associated with chronic low-grade inflammation of adipose tissue (AT) and an increase of AT macrophages (ATMs) that is linked to the onset of type 2 diabetes. We have recently shown that focal sites of inflammation around dying adipocytes, so-called crown-like structures, exhibit a unique microenvironment for macrophage proliferation. Interestingly, locally proliferating macrophages were not classically activated (M1), but they exhibited a rather alternatively activated (M2) immune phenotype. In this study, we established organotypic cell cultures of AT explants to study the impact of cytokine treatment on local ATM proliferation, without the bias of early monocyte recruitment...
February 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28193696/astrocytic-orosomucoid-2-modulates-microglial-activation-and-neuroinflammation
#20
Myungjin Jo, Jong-Heon Kim, Gyunjee Song, Minchul Seo, Eun Mi Hwang, Kyoungho Suk
Orosomucoid (ORM) is an acute-phase protein that belongs to the immunocalin subfamily, a group of small-molecule binding proteins with immunomodulatory functions. Little is known about the role of ORM proteins in the central nervous system. The aim of the present study was to investigate the brain expression of ORM and its role in neuroinflammation. Expression of Orm2, but not Orm1 or Orm3, was highly induced in the mouse brain after systemic injection of lipopolysaccharide (LPS). Plasma levels of ORM2 were also significantly higher in patients with cognitive impairment than in normal subjects...
February 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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