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https://www.readbyqxmd.com/read/28635324/gliptins-suppress-inflammatory-macrophage-activation-to-mitigate-inflammation-fibrosis-oxidative-stress-and-vascular-dysfunction-in-models-of-non-alcoholic-steatohepatitis-and-liver-fibrosis
#1
Xiaoyu Wang, Michael Hausding, Shih-Yen Weng, Yong Ook Kim, Sebastian Steven, Thomas Klein, Andreas Daiber, Detlef Schuppan
AIMS: Non-alcoholic steatohepatitis (NASH) is characterized by steatosis, panlobular inflammation, liver fibrosis and increased cardiovascular mortality. Dipeptidyl peptidase-4 (DPP-4) inhibitors (gliptins) are indirect glucagon like peptide 1 (GLP-1) agonists with antidiabetic and anti-inflammatory activity, used for the treatment of type 2 diabetes. Their potential and underlying mechanisms to treat metabolic liver inflammation and fibrosis as well as the associated vascular dysfunction remain to be explored...
June 21, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28633109/endothelial-nlrp3-inflammasome-activation-and-arterial-neointima-formation-associated-with-acid-sphingomyelinase-during-hypercholesterolemia
#2
Saisudha Koka, Min Xia, Yang Chen, Owais M Bhat, Xinxu Yuan, Krishna M Boini, Pin-Lan Li
The NLRP3 inflammasome has been reported to be activated by atherogenic factors, whereby endothelial injury and consequent atherosclerotic lesions are triggered in the arterial wall. However, the mechanisms activating and regulating NLRP3 inflammasomes remain poorly understood. The present study tested whether acid sphingomyelinase (ASM) and ceramide associated membrane raft (MR) signaling platforms contribute to the activation of NLRP3 inflammasomes and atherosclerotic lesions during hypercholesterolemia. We found that 7-ketocholesterol (7-Keto) or cholesterol crystal (ChC) markedly increased the formation and activation of NLRP3 inflammasomes in mouse carotid arterial endothelial cells (CAECs), as shown by increased colocalization of NLRP3 with ASC or caspase-1, enhanced caspase-1 activity and elevated IL-1β levels, which were markedly attenuated by mouse Asm siRNA, ASM inhibitor- amitriptyline, and deletion of mouse Asm gene...
June 15, 2017: Redox Biology
https://www.readbyqxmd.com/read/28632778/over-expressing-the-soluble-gp130-fc-does-not-ameliorate-methionine-and-choline-deficient-diet-induced-non-alcoholic-steatohepatitis-in-mice
#3
Helene L Kammoun, Tamara Louise Allen, Darren Colin Henstridge, Michael James Kraakman, Lone Peijs, Stefan Rose-John, Mark Anthony Febbraio
Non-alcoholic steatohepatitis (NASH) is a liver disease with the potential to lead to cirrhosis and hepatocellular carcinoma. Interleukin-6 (IL-6) has been implicated in the pathogenesis of NASH, with the so-called IL-6 'trans-signaling' cascade being responsible for the pro-inflammatory actions of this cytokine. We aimed to block IL-6 'trans-signaling', using a transgenic mouse that overexpresses human soluble glycoprotein130 (sgp130Fc Tg mice) fed a commonly used dietary model of inducing NASH (methionine and choline deficient-diet; MCD diet) and hypothesized that markers of NASH would be ameliorated in such mice...
2017: PloS One
https://www.readbyqxmd.com/read/28623772/development-and-validation-of-a-highly-sensitive-lc-esi-ms-ms-method-for-estimation-of-iiim-mcd-211-a-novel-nitrofuranyl-methyl-piperazine-derivative-with-potential-activity-against-tuberculosis-application-to-drug-development
#4
Asmita Magotra, Anjna Sharma, Ajai Prakash Gupta, Priya Wazir, Shweta Sharma, Parvinder Pal Singh, Manoj Kumar Tikoo, Ram A Vishwakarma, Gurdarshan Singh, Utpal Nandi
In the present study, a simple, sensitive, specific and rapid liquid chromatography (LC) tandem mass spectrometry (MS/MS) method was developed and validated according to the Food and Drug Administration (FDA) guidelines for estimation of IIIM-MCD-211 (a potent oral candidate with promising action against tuberculosis) in mice plasma using carbamazepine as internal standard (IS). Bioanalytical method consisted of one step protein precipitation for sample preparation followed by quantitation in LC-MS/MS using positive electrospray ionization technique (ESI) operating in multiple reaction monitoring (MRM) mode...
June 8, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28612992/organometallic-group-11-cuiii-agiii-auiii-complexes-of-a-trans-doubly-n-confused-porphyrin-a-structural-motif-of-expanded-imidazole
#5
Hiroyuki Furuta, Jiaying Yan, Yufeng Yang, Masatoshi Ishida, Shigeki Mori, Bao Zhang, Yaqing Feng
Complexation of group 11 metal cations with an -bis(phenylthio)-substituted trans-doubly N-confused porphyrin (trans-N2CPSPh: 4) afforded a series of square planar trivalent organometallic complexes (i.e., Cu-H4, Ag-H4, and Au-H4). The X-ray crystal structures of the complexes revealed highly planar core geometries along with the presence of peripheral amine and imine nitrogen sites of the pyrrolic moieties. NMR, UV-vis absorption, and magnetic circular dichroism (MCD) spectroscopies suggested the 18 -electron aromaticity of the complexes...
June 14, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28609772/lymphoproliferative-disorders-of-the-lung
#6
Raphaël Borie, Marie Wislez, Martine Antoine, Jacques Cadranel
This review aims to describe some of the most frequent lymphoproliferative disorders arising from the lung: pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma, lymphomatoid granulomatosis (LG), multicentric Castleman disease (MCD), primary effusion lymphoma (PEL), and nodular lymphoid hyperplasia (NLH). Primary pulmonary lymphoma is defined as a clonal lymphoproliferative disorder affecting one or both lungs, without extrapulmonary involvement 3 months after diagnosis, and includes pulmonary MALT lymphoma and LG...
June 14, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28609402/hiv-associated-kaposi-sarcoma-and-related-diseases
#7
Priscila H Gonçalves, Thomas S Uldrick, Robert Yarchoan
The search for the etiologic agent for Kaposi sarcoma (KS) led to the discovery of Kaposi sarcoma associated herpesvirus (KSHV) in 1994. KSHV, also called human herpesvirus-8 (HHV-8) has since been shown to be the etiologic agent for several other tumors and diseases, including primary effusion lymphoma (PEL), an extracavitary variant of PEL, KSHV-associated diffuse large B-cell lymphoma, a form of multicentric Castleman disease (MCD), and KSHV inflammatory cytokine syndrome (KICS). KSHV encodes several genes that interfere with innate and specific immunity, thwart apoptosis, enhance cell proliferation and cytokine production, and promote angiogenesis, and these play important roles in the disease pathogenesis...
June 12, 2017: AIDS
https://www.readbyqxmd.com/read/28600497/on-the-nature-of-photoluminescence-in-bismuth-doped-silica-glass
#8
Oleksii V Laguta, Hicham El Hamzaoui, Mohamed Bouazaoui, Vladimir B Arion, Igor M Razdobreev
We report on the investigation of Bismuth-doped pure silica glass without other co-dopant by the tech- nique of magnetic circular dichroism (MCD), which allows the direct probing of the ground state of optical centres. Taking into account the results of conventional optical spectroscopy, we show that the observed MCD bands belong to the centre responsible for the red photoluminescence in this material. Measurements of the temperature and field dependences indicate that the MCD effect is caused by the even-electron system...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28597505/renal-effects-of-an-emergency-department-chloride-restrictive-intravenous-fluid-strategy-in-patients-admitted-to-hospital-for-more-than-48-hours
#9
Nor'azim Mohd Yunos, Rinaldo Bellomo, David McD Taylor, Simon Judkins, Fergus Kerr, Harvey Sutcliffe, Colin Hegarty, Michael Bailey
OBJECTIVE: Patients commonly receive i.v. fluids in the ED. It is still unclear whether the choice of i.v. fluids in this setting influences renal or patient outcomes. We aimed to assess the effects of restricting i.v. chloride administration in the ED on the incidence of acute kidney injury (AKI). METHODS: We conducted a before-and-after trial with 5008 consecutive ED-treated hospital admissions in the control period and 5146 consecutive admissions in the intervention period...
June 8, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28594915/conophylline-inhibits-non-alcoholic-steatohepatitis-in-mice
#10
Yukiomi Nakade, Kazumasa Sakamoto, Taeko Yamauchi, Tadahisa Inoue, Yuji Kobayashi, Takaya Yamamoto, Norimitsu Ishii, Tomohiko Ohashi, Yoshio Sumida, Kiyoaki Ito, Haruhisa Nakao, Yoshitaka Fukuzawa, Kazuo Umezawa, Masashi Yoneda
Conophylline (CnP), a vinca alkaloid extracted from the leaves of the tropical plant Ervatamia microphylla, attenuates hepatic fibrosis in mice. However, little is known about whether CnP inhibits steatosis, inflammation, and fibrosis in non-alcoholic steatohepatitis (NASH) in mice. A methionine-choline-deficient (MCD) diet was administered to male db/db mice as a NASH model, and CnP (1 μg/kg/d) was co-administered. Eight weeks after the commencement of the MCD diet, hepatic steatosis, inflammation, and fibrosis, and hepatic fat metabolism-, inflammation-, and fibrosis-related markers were examined...
2017: PloS One
https://www.readbyqxmd.com/read/28578014/carbon-monoxide-protects-against-hepatic-steatosis-in-mice-by-inducing-sestrin-2-via-the-perk-eif2%C3%AE-atf4-pathway
#11
Hyo Jeong Kim, Yeonsoo Joe, Seul-Ki Kim, Se-Ung Park, Jeongmin Park, Yingqing Chen, Jin Kim, Jinhyun Ryu, Gyeong Jae Cho, Young-Joon Surh, Stefan W Ryter, Uh-Hyun Kim, Hun-Taeg Chung
Nonalcoholic fatty liver disease (NAFLD), the hepatic manifestation of the metabolic syndrome, has emerged as one of the most common causes of chronic liver disease in developed countries over the last decade. NAFLD comprises a spectrum of pathological hepatic changes, including steatosis, steatohepatitis, advanced fibrosis, and cirrhosis. Autophagy, a homeostatic process for protein and organelle turnover, is decreased in the liver during the development of NAFLD. Previously, we have shown that carbon monoxide (CO), a reaction product of heme oxygenase (HO) activity, can confer protection in NAFLD, though the molecular mechanisms remain unclear...
May 31, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28574139/visual-outcomes-following-descemet-stripping-automated-endothelial-keratoplasty-for-corneal-endothelial-dysfunction
#12
Oualid Guechi, Louis Lhuillier, Naila Houmad, Christophe Goetz, Nadia Ouamara, Jean Marc Perone
OBJECTIVE: To assess objective and subjective visual outcomes achieved by patients with corneal endothelial dysfunction who have undergone surgical treatment with Descemet stripping automated endothelial keratoplasty (DSAEK). METHODS: A total of 40 eyes of 36 patients with corneal endothelial dysfunction underwent DSAEK. All were followed up for 1 year. Visual acuity (VA; logMAR), mean endothelial cell density (MCD; via noncontact specular microscopy), and topography assessment were performed at baseline (preoperatively)...
April 10, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28573371/frequency-of-familial-mediterranean-fever-mefv-gene-mutations-in-patients-with-biopsy-proven-primary-glomerulonephritis
#13
Can Huzmeli, Ferhan Candan, Gokhan Bagci, Demet Alaygut, Ali Yilmaz, Asim Gedikli, Binnur Bagci, Meryem Timucin, Ilhan Sezgin, Mansur Kayatas
Primary glomerulopathies are those disorders that affect glomerular structure, function, or both in the absence of a multisystem disorder. We aimed to evaluate the frequency of MEFV gene mutation to show possible coexistence of FMF in patients diagnosed with biopsy-proven primary glomerulonephritis (GN). A total of 64 patients with biopsy-proven primary GN were included in the study. MEFV gene mutations examined retrospectively. The mean age of patients was 39.6 ± 13.4 (range 18-69), 35 of patients were female and 29 of patients were male...
June 1, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28573276/reaction-mechanism-of-the-metallohydrolase-cpsb-from-streptococcus-pneumoniae-a-promising-target-for-novel-antimicrobial-agents
#14
Marcelo Monteiro Pedroso, Christopher Selleck, Jessica Bilyj, Jeffrey R Harmer, Lawrence R Gahan, Nataša Mitić, Alistair J Standish, David L Tierney, James A Larrabee, Gerhard Schenk
CpsB is a metal ion-dependent hydrolase involved in the biosynthesis of capsular polysaccharides in bacterial organisms. The enzyme has been proposed as a promising target for novel chemotherapeutics to combat antibiotic resistance. The crystal structure of CpsB indicated the presence of as many as three closely spaced metal ions, modelled as Mn(2+), in the active site. While the preferred metal ion composition in vivo is obscure Mn(2+) and Co(2+) have been demonstrated to be most effective in reconstituting activity...
June 2, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28570413/professional-reimbursement-by-medicaid-for-cochlear-implants-and-related-services
#15
Joseph H Conduff, Daniel H Coelho
HYPOTHESIS: Medicaid reimbursement rates for cochlear implants and related services fall short of the federal benchmark set by Medicare. BACKGROUND: The financial hardships of cochlear implant centers around the United States may be a repercussion of poor Medicaid reimbursement. In time, these reimbursement discrepancies could force additional Otolaryngologists and cochlear implant centers to not provide these crucial services due to financial limitations. METHODS: Based on Medicare (MCR) claims data, current procedural terminology (CPT) codes used for cochlear implantation and related services were selected...
May 31, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28570344/pharmacotherapy-of-mast-cell-disorders
#16
Theo Gülen, Cem Akin
PURPOSE OF REVIEW: Mast cell disorders (MCDs) comprise mastocytosis and disorders referred to as mast cell activation syndrome and are caused by abnormal accumulation and/or activation of mast cells in tissues. Clinical signs and symptoms are protean; therefore, finding suitable treatment options for individual patients entails a challenge for clinicians. The purpose of this manuscript is to review the literature on the available therapeutic interventions in patients with MCD. RECENT FINDINGS: Pharmacotherapy is mainly directed against the effects of mast cells and their mediators...
May 31, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28555112/caveolin-1-functional-insights-into-its-role-in-muscarine-and-serotonin-induced-smooth-muscle-constriction-in-murine-airways
#17
Maryam Keshavarz, Heike Schwarz, Petra Hartmann, Silke Wiegand, Melanie Skill, Mike Althaus, Wolfgang Kummer, Gabriela Krasteva-Christ
An increased bronchoconstrictor response is a hallmark in the progression of obstructive airway diseases. Acetylcholine and 5-hydroxytryptamine (5-HT, serotonin) are the major bronchoconstrictors. There is evidence that both cholinergic and serotonergic signaling in airway smooth muscle (ASM) involve caveolae. We hypothesized that caveolin-1 (cav-1), a structural protein of caveolae, plays an important regulatory role in ASM contraction. We analyzed airway contraction in different tracheal segments and extra- and intrapulmonary bronchi in cav-1 deficient (cav-1-/-) and wild-type mice using organ bath recordings and videomorphometry of methyl-beta-cyclodextrin (MCD) treated and non-treated precision-cut lung slices (PCLS)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28553650/recent-treatment-advances-and-new-trials-in-adult-nephrotic-syndrome
#18
REVIEW
Eva Königshausen, Lorenz Sellin
The etiology of nephrotic syndrome is complex and ranges from primary glomerulonephritis to secondary forms. Patients with nephrotic syndrome often need immunosuppressive treatment with its side effects and may progress to end stage renal disease. This review focuses on recent advances in the treatment of primary causes of nephrotic syndrome (idiopathic membranous nephropathy (iMN), minimal change disease (MCD), and focal segmental glomerulosclerosis (FSGS)) since the publication of the KDIGO guidelines in 2012...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28548539/cd4-count-and-hiv-rna-trends-for-hiv-associated-lymphoproliferative-disorders-in-malawi
#19
Bongani Kaimila, Toon van der Gronde, Edwards Kasonkanji, Paula Fox, Maria Chikasema, Blessings Tewete, Satish Gopal
BACKGROUND: Given scarce data from sub-Saharan Africa (SSA), we sought to describe CD4 count and HIV RNA trends over time among patients with HIV+ lymphoproliferative disorders in Malawi. METHODS: We prospectively enrolled HIV+ individuals with pathologically confirmed lymphoproliferative disorders between 2013 and 2016. Chemotherapy was standardized with concurrent antiretroviral therapy (ART). We assessed CD4 count and HIV RNA at baseline and every 6 months for up to 2 years...
May 26, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28544257/validation-of-the-adolescent-drinking-expectancy-questionnaire-and-development-of-a-short-form
#20
Kiri A Patton, Jason P Connor, Sharyn Rundle-Thiele, Timo Dietrich, Ross McD Young, Matthew J Gullo
AIMS: This study aimed to validate the Drinking Expectancy Questionnaire-Adolescent version (DEQ-A) in a large adolescent sample and to develop and validate a brief measure, the Drinking Expectancy Questionnaire-Shortened Adolescent version (DEQ-SA). DESIGN AND METHODS: Cross-sectional survey of secondary school students (n = 2357, aged 13-16, M = 14.66 years, SD = 0.60). Students completed the DEQ-A in school, and measures of alcohol consumption including the Alcohol Use Disorders Identification Test-Consumption...
May 21, 2017: Drug and Alcohol Review
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