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https://www.readbyqxmd.com/read/28087970/liquid-chromatography-mass-spectrometry-high-resolution-for-the-determination-of-baclofen-and-its-metabolites-in-plasma-application-to-therapeutic-drug-monitoring
#1
Laurence Labat, Antonio Goncalves, Ana Rita Marques, Bénédicte Duretz, Bernard Granger, Xavier Declèves
Baclofen is actually used to manage alcohol dependence. This study describes a simple method using liquid chromatography coupled to high resolution mass spectrometry (LC-HR-MS) developed in plasma samples. This method was optimized to allow quantification of baclofen and determination of metabolic ratio of its metabolites, an oxidative deaminated metabolite of baclofen (M1) and its glucuronide form (M2). The LC-HR-MS method on Exactive® apparatus is a new developed method with all the advantages of the high resolution in full scan mode for the quantification of baclofen and detection of its metabolites in plasma...
January 14, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28087685/bst-2-restricts-iav-release-and-is-countered-by-the-viral-m2-protein
#2
Siqi Hu, Lijuan Yin, Shan Mei, Jian Li, Fengwen Xu, Hong Sun, Xiaoman Liu, Shan Cen, Chen Liang, Ailing Li, Fei Guo
BST-2 (tetherin, CD317, HM1.24) is induced by interferon and restricts virus release by tethering the enveloped viruses to the cell surface. The effect of BST-2 on influenza A virus (IAV) infection has been inconclusive. In this study, we report that BST-2 diminishes the production of IAV virus-like particles, that are generated by viral NA and HA proteins, to a much greater degree than inhibits the production of wild type IAV particles. This relatively weaker inhibition of IAV is associated with reduction of BST-2 levels, which is caused by the M2 protein that interacts with BST-2 and leads to downregulation of cell surface BST-2 via the proteasomal pathway...
January 13, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28087471/il-6-promotes-m2-macrophage-polarization-by-modulating-purinergic-signaling-and-regulates-the-lethal-release-of-nitric-oxide-during-trypanosoma-cruzi-infection
#3
Liliana M Sanmarco, Nicolás E Ponce, Laura M Visconti, Natalia Eberhardt, Martin G Theumer, Ángel R Minguez, Maria P Aoki
The production of nitric oxide (NO) is a key defense mechanism against intracellular pathogens but it must be tightly controlled in order to avoid excessive detrimental oxidative stress. In this study we described a novel mechanism through which interleukin (IL)-6 mediates the regulation of NO release induced in response to Trypanosoma cruzi infection. Using a murine model of Chagas disease, we found that, in contrast to C57BL/6 wild type (WT) mice, IL-6-deficient (IL6KO) mice exhibited a dramatic increase in plasma NO levels concomitant with a significantly higher amount of circulating IL-1β and inflammatory monocytes...
January 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28087313/an-m2-v27a-channel-blocker-demonstrates-potent-in-vitro-and-in-vivo-antiviral-activities-against-amantadine-sensitive-and-resistant-influenza-a-viruses
#4
Yanmei Hu, Rami Musharrafieh, Chunlong Ma, Jiantao Zhang, Donald F Smee, William F DeGrado, Jun Wang
Adamantanes such as amantadine (1) and rimantadine (2) are FDA-approved anti-influenza drugs that act by inhibiting the wild-type M2 proton channel from influenza A viruses, thereby inhibiting the uncoating of the virus. Although adamantanes have been successfully used for more than four decades, their efficacy was curtailed by emerging drug resistance. Among the limited number of M2 mutants that confer amantadine resistance, the M2-V27A mutant was found to be the predominant mutant under drug selection pressure, thereby representing a high profile antiviral drug target...
January 10, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28087184/clinical-characteristics-of-ruptured-distal-middle-cerebral-artery-aneurysms-review-of-the-literature
#5
REVIEW
Keiji Tsutsumi, Tetsuyoshi Horiuchi, Alhusain Nagm, Yasuyuki Toba, Kazuhiro Hongo
Middle cerebral artery (MCA) aneurysms usually arise at the primary MCA bifurcation or trifurcation. Distal MCA aneurysms are rarely considered as sources of aneurysmal subarachnoid hemorrhage (SAH). It has been reported that ruptured distal MCA aneurysms are associated with head trauma, neoplastic emboli, arterial dissection, or bacterial infection. We experienced five cases of ruptured distal MCA aneurysms and evaluated their clinical characteristics. Retrospective analysis of aneurysmal SAH at Kobayashi Neurosurgical Neurological Hospital was performed from January, 2004 to December, 2014...
January 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28086949/nek2-promotes-aerobic-glycolysis-in-multiple-myeloma-through-regulating-splicing-of-pyruvate-kinase
#6
Zhimin Gu, Jiliang Xia, Hongwei Xu, Ivana Frech, Guido Tricot, Fenghuang Zhan
BACKGROUND: Aerobic glycolysis, a hallmark of cancer, is characterized by increased metabolism of glucose and production of lactate in normaxia. Recently, pyruvate kinase M2 (PKM2) has been identified as a key player for regulating aerobic glycolysis and promoting tumor cell proliferation and survival. METHODS: Tandem affinity purification followed up by mass spectrometry (TAP-MS) and co-immunoprecipitation (Co-IP) were used to study the interaction between NIMA (never in mitosis gene A)-related kinase 2 (NEK2) and heterogeneous nuclear ribonucleoproteins (hnRNP) A1/2...
January 13, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28081294/xenogeneic-bio-root-prompts-the-constructive-process-characterized-by-macrophage-phenotype-polarization-in-rodents-and-nonhuman-primates
#7
Hui Li, Jingjing Sun, Jie Li, Hefeng Yang, Xiangyou Luo, Jinlong Chen, Li Xie, Fangjun Huo, Tian Zhu, Weihua Guo, Weidong Tian
Tissue or organ regeneration using xenogeneic matrices is a promising approach to address the shortage of donor matrices for allotransplantation. Success of such approach has been demonstrated to correlate with macrophage-mediated fibrotic homeostasis and tissue remodeling. The previous studies have demonstrated that treated dentin matrix (TDM) could be a suitable bioactive substrate for allogeneic tooth root regeneration. This study constructed xenogeneic bioengineered tooth root (bio-root) via a combination of porcine TDM (pTDM) with allogeneic dental follicle cells (DFCs)...
January 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28081262/efficacy-of-statin-treatment-in-early-stage-chronic-kidney-disease
#8
Eun Yeong Cho, Chana Myoung, Hong-Suk Park, Ae Jin Kim, Han Ro, Jae Hyun Chang, Hyun Hee Lee, Wookyung Chung, Ji Yong Jung
Chronic kidney disease (CKD) represents a major medical challenge and frequently coexists with cardiovascular disease (CVD), which can be treated by statin trerapy. However, whether statin treatment affects renal progression and outcomes in CKD patients remains unclear. We retrospectively reviewed CKD patients at Gachon University Gil Medical Center from 2003-2013. From a total of 14,497 CKD patients, 858 statin users were paired with non-users and analyze with propensity score matching was performed. The outcomes of this study were creatinine doubling, renal death, all-cause mortality, and interactive factors for composite outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28081251/physical-activity-and-sedentary-behaviors-modify-the-association-between-melanocortin-4-receptor-gene-variant-and-obesity-in-chinese-children-and-adolescents
#9
Jie-Yun Song, Qi-Ying Song, Shuo Wang, Jun Ma, Hai-Jun Wang
Effects of MC4R variants in previous Chinese population studies were inconsistent. Gene-environment interactions might influence the effect of MC4R variants on obesity, which was still unclear. We performed the study to clarify the association of variants near MC4R gene with obesity-related phenotypes and gene-environment interactions in Chinese children and adolescents. Two common variants (rs12970134 and rs17782313) near MC4R were genotyped in 2179 children and adolescents aged 7-18 years in Beijing of China...
2017: PloS One
https://www.readbyqxmd.com/read/28081243/the-prognostic-and-clinicopathological-significance-of-tumor-associated-macrophages-in-patients-with-gastric-cancer-a-meta-analysis
#10
Songcheng Yin, Jinyu Huang, Zhan Li, Junyan Zhang, Jiazi Luo, Chunyang Lu, Hao Xu, Huimian Xu
OBJECTIVE: Comprehensive studies have investigated the prognostic and clinicopathological value of tumor-associated macrophages (TAMs) in gastric cancer patients, yet results remain controversial. Therefore, we performed a meta-analysis to clarify this issue. METHODS: PubMed, Embase, and the Cochrane Library databases were searched to identify eligible studies. We extracted hazard ratios (HRs) and odds ratios (ORs) with their corresponding 95% confidence intervals (95% CIs) to estimate the effect sizes...
2017: PloS One
https://www.readbyqxmd.com/read/28081192/circulating-betatrophin-levels-and-gestational-diabetes-mellitus-a-systematic-review-and-meta-analysis
#11
Fei-Juan Kong, Lei-Lei Ma, Ge Li, Yi-Xin Chen, Jia-Qiang Zhou
OBJECTIVE: The association between circulating betatrophin levels and gestational diabetes mellitus (GDM) is controversial. The aim of our study was to systematically review available literature linking betatrophin to GDM for a comprehensive understanding of the relationship between circulating betatrophin levels and GDM in human. METHODS: PubMed, The Cochrane Library, Medline and CNKI were searched for studies published up to August 2016. Manual searches of references of the relevant original studies were conducted...
2017: PloS One
https://www.readbyqxmd.com/read/28079906/4d-and-5d-bimetal-doped-tubular-silicon-clusters-si12m2-with-m-nb-ta-mo-and-w-a-bimetallic-configuration-model
#12
Hung Tan Pham, Devashis Majumdar, Jerzy Leszczynski, Minh Tho Nguyen
Geometries and electronic properties related to the ground state stabilities of several Si12M2 clusters (M: second-row (Nb and Mo) and third-row (Ta and W) transition metals, and their mixed bimetallic clusters M2: NbMo and TaW) were explored using density functional theory (DFT) computations. The computed results show that two different structural motifs emerge as the global energy minima of such clusters. They are basically singlet tubular structures in either a C2v prism ((1)A1) or a C6v antiprism ((1)A1) form...
January 12, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28079242/application-of-baros-questionnaire-in-obese-patients-undergoing-bariatric-surgery-with-2-years-of-evolution
#13
Caetano de Queiroz, José Afonso Sallet, Pedro Gabriel Melo DE Barros E Silva, Luzia da Gloria Pereira de Sousa Queiroz, Jélis Arenas Pimentel, Paulo Clemente Sallet
BACKGROUND: -In recent decades, the high prevalence of obesity in the general population has brought serious concerns in terms of public health. Contrarily to conventional treatment involving dieting and physical exercising, often ineffective in generating long term results, bariatric opera-tions have been an effective method for sustained weight loss in morbidly obese individuals. The Bariatric Analysis and Reporting Outcome System (BAROS) is an objective and recognized system in the overall evaluation of results after bariatric surgery...
January 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28078870/assessing-the-association-between-25-oh-vitamin-d-levels-and-roma-score-in-a-population-of-obese-women
#14
E Anastasi, D Capoccia, T Granato, V Viggiani, S Tartaglione, L Manganaro, A Angeloni, F Leonetti
The “Risk of Malignancy Algorithm” (ROMA) combines the diagnostic power of the CA125 and HE4 markers with menopausal status to predict the risk for developing epithelial ovarian cancer (EOC). The aim of this study was to evaluate the association between 25-OH vitamin D levels and ROMA score in obese women. One hundred and eighteen patients with a Body Mass Index (BMI) > 30 kg/m2 (Group 1) and 80 women with a BMI less than 25 kg / m² (Group 2) were studied. The 25-OH vitamin D was quantified with LUMIPULSE® G 1200...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28077372/extracellular-microrna-signature-in-chronic-kidney-disease
#15
Jagdeesan Muralidharan, Ali Ramezani, Monica J Hubal, Susan Knoblach, Shashi Shrivastav, Sara Karandish, Richard Scott, Nirmal Maxwell, Savas Ozturk, Srinivasan Beddhu, Jeffrey B Kopp, Dominic S Raj
MicroRNAs (miRNAs) are noncoding RNAs that regulate post-transcriptional gene expression. In this study we characterized the circulating and urinary miRNA pattern associated with reduced glomerular filtration rate using Affymetrix GeneChip miR 4.0 in 28 patients with chronic kidney disease (CKD). Top miRNA discoveries from the human studies were validated in an Alb/TGF-β mouse model of CKD, and in rat renal proximal tubular cells (NRK52E) exposed to TGF-β1. Plasma and urinary levels of procollagen III N-terminal propeptide and collagen IV were elevated in patients with decreased estimated glomerular filtration rate (eGFR)...
January 11, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28077367/electroacupuncture-alleviates-the-inflammatory-response-via-effects-on-m1-and-m2-macrophages-after-spinal-cord-injury
#16
Jiagui Zhao, Rongyi Zhang, Likui Wang, Yuanhai Li
BACKGROUND: Macrophages/microglia are important effector cells at the site of spinal cord injury (SCI). M1-type macrophages facilitate innate immunity to remove foreign microbes and wound debris from the injury site. M2-type macrophages exhibit tissue repair properties and attenuate production of pro-inflammatory cytokines. Regulation of the polarisation of M1/M2 macrophages may affect the inflammatory response in SCI and may be related to neurotrophin-3 (NT-3). Electroacupuncture (EA) at GV acupuncture points can be used as an adjuvant therapy for SCI...
January 11, 2017: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/28077198/association-of-bmi-with-risk-of-cvd-mortality-and-all-cause-mortality
#17
Chee Cheong Kee, Mohd Ghazali Sumarni, Kuang Hock Lim, Sharmini Selvarajah, Jamaiyah Haniff, Guat Hiong Helen Tee, Kaur Gurpreet, Yusoff Ahmad Faudzi, Nasir Mustafa Amal
OBJECTIVE: To determine the relationship between BMI and risk of CVD mortality and all-cause mortality among Malaysian adults. DESIGN: Population-based, retrospective cohort study. Participants were followed up for 5 years from 2006 to 2010. Mortality data were obtained via record linkages with the Malaysian National Registration Department. Multiple Cox regression was applied to compare risk of CVD and all-cause mortality between BMI categories adjusting for age, gender and ethnicity...
January 12, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28076617/radiation-exposure-in-endovascular-infra-renal-aortic-aneurysm-repair-and-factors-that-influence-it
#18
Rui Machado, Vitor Miguel Dias Ferreira, Luis Loureiro, João Gonçalves, Pedro Oliveira, Rui Almeida
Objective: The endovascular repair of aortic abdominal aneurysms exposes the patients and surgical team to ionizing radiation with risk of direct tissue damage and induction of gene mutation. This study aims to describe our standard of radiation exposure in endovascular aortic aneurysm repair and the factors that influence it. Methods: Retrospective analysis of a prospective database of patients with abdominal infra-renal aortic aneurysms submitted to endovascular repair...
November 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28076480/preliminary-analysis-of-interleukin-6-changes-in-pre-and-postoperative-in-diabetic-patients-with-bmi-35-submitted-to-partial-duodenal-switch
#19
Luciano Dias de Oliveira Reis, Paulo Afonso Nunes Nassif, Fernando Issamu Tabushi, Fábio Quirillo Milléo, Giovani Marino Favero, Bruno Luiz Ariede, Cassiana Franco Dias Dos Reis, Bruno Franco Dalabona
Background: Studies related to obesity have shown association with metabolic syndrome. Data showing that obesity is capable to cause low grade chronic inflammation, without its classic signs and symptoms, call attention to researches to study different cells types and the mechanism of the inflammatory process. Aim: To evaluate the variation of glycated hemoglobin (HbA1c) and the pro-inflammatory cytokine interleukin-6 (IL6) in diabetic patients with BMI <35 kg/m2 in the pre and postoperative of partial duodenal switch...
November 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/28076416/the-ccr2-inhibitor-propagermanium-attenuates-diet-induced-insulin-resistance-adipose-tissue-inflammation-and-non-alcoholic-steatohepatitis
#20
Petra Mulder, Anita M van den Hoek, Robert Kleemann
BACKGROUND AND AIM: Obese patients with chronic inflammation in white adipose tissue (WAT) have an increased risk of developing non-alcoholic steatohepatitis (NASH). The C-C chemokine receptor-2 (CCR2) has a crucial role in the recruitment of immune cells to WAT and liver, thereby promoting the inflammatory component of the disease. Herein, we examined whether intervention with propagermanium, an inhibitor of CCR2, would attenuate tissue inflammation and NASH development. METHODS: Male C57BL/6J mice received a high-fat diet (HFD) for 0, 6, 12 and 24 weeks to characterize the development of early disease symptoms of NASH, i...
2017: PloS One
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