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https://www.readbyqxmd.com/read/28912343/diversification-of-transcriptional-regulation-determines-subfunctionalization-of-paralogous-branched-chain-aminotransferases-in-the-yeast-saccharomyces-cerevisiae
#1
James González, Geovani López, Stefany Argueta, Ximena Escalera-Fanjul, Mohamed El Hafidi, Carlos Campero-Basaldua, Joseph Strauss, Lina Riego-Ruiz, Alicia González
Saccharomyces cerevisiae harbors BAT1 and BAT2 paralogous genes encoding branched chain aminotransferases (BCATs), showing opposed expression profiles and physiological role. Accordingly, in primary nitrogen sources such as glutamine, BAT1 expression is induced, supporting Bat1-dependent valine-isoleucine-leucine (VIL) biosynthesis, while BAT2 expression is repressed. Conversely, in the presence of VIL as sole nitrogen source, BAT1 expression is hindered while that of BAT2 is activated resulting in Bat2-dependent VIL catabolism...
September 14, 2017: Genetics
https://www.readbyqxmd.com/read/28903723/domains-associated-with-successful-quality-improvement-in-healthcare-a-nationwide-case-study
#2
Aleidis Skard Brandrud, Bjørnar Nyen, Per Hjortdahl, Leiv Sandvik, Gro Sævil Helljesen Haldorsen, Maria Bergli, Eugene C Nelson, Michael Bretthauer
BACKGROUND: There is a distinct difference between what we know and what we do in healthcare: a gap that is impairing the quality of the care and increasing the costs. Quality improvement efforts have been made worldwide by learning collaboratives, based on recognized continual improvement theory with limited scientific evidence. The present study of 132 quality improvement projects in Norway explores the conditions for improvement from the perspectives of the frontline healthcare professionals, and evaluates the effectiveness of the continual improvement method...
September 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28878084/human-herpesvirus-8-interleukin-6-interacts-with-calnexin-cycle-components-and-promotes-protein-folding
#3
Daming Chen, Qiwang Xiang, John Nicholas
Viral interleukin-6 (vIL-6) encoded by human herpesvirus 8 (HHV-8) is believed to contribute via mitogenic, survival, and angiogenic activities to HHV-8-associated Kaposi's sarcoma, primary effusion lymphoma (PEL), and multicentric Castleman's disease through autocrine or paracrine mechanisms during latency or productive replication. There is direct evidence that vIL-6 promotes latently infected PEL cell viability and proliferation and also viral productive replication in PEL and endothelial cells. These activities are mediated largely through endoplasmic reticulum (ER)-localized vIL-6, which can induce signal transduction via the gp130 signaling receptor, activating mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription (STAT) signaling, and interactions of vIL-6 with the ER membrane protein vitamin K epoxide reductase complex subunit 1 variant 2 (VKORC1v2)...
September 6, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28865734/paneth-cell-defects-induce-microbiota-dysbiosis-in-mice-and-promote-visceral-hypersensitivity
#4
Ambre Riba, Maïwenn Olier, Sonia Lacroix-Lamandé, Corinne Lencina, Valérie Bacquié, Cherryl Harkat, Marion Gillet, Marine Baron, Caroline Sommer, Virginie Mallet, Christel Salvador-Cartier, Fabrice Laurent, Vassilia Théodorou, Sandrine Ménard
BACKGROUND & AIMS: Separation of newborn rats from their mothers induces visceral hypersensitivity and impaired epithelial secretory cell lineages when they are adults. Little is known about the mechanisms by which maternal separation causes visceral hypersensitivity or its relationship with defects in epithelial secretory cell lineages. METHODS: We performed studies with C3H/HeN mice separated from their mothers as newborns and mice genetically engineered (Sox9(flox/flox)-vil-cre on C57BL/6 background) to have deficiencies in Paneth cells...
August 30, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28770482/a-minimally-invasive-approach-for-inguinal-lymphadenectomy-in-melanoma-and-genitourinary-malignancy-long-term-outcomes-in-an-attempted-randomized-control-trial
#5
Lauren M Postlewait, Clara R Farley, Maggie L Diller, Benjamin Martin, M Hart Squires, Maria C Russell, Monica Rizzo, Kenneth Ogan, Viraj Master, Keith Delman
BACKGROUND: Open inguinal lymphadenectomy (OIL) has a high incidence of complications. The authors adapted and reported a minimally invasive technique [videoscopic inguinal lymphadenectomy (VIL)] for use with melanoma, subsequently pursuing a randomized, prospective trial comparing open and minimally invasive approaches in an attempt to confirm retrospective findings illustrating reduced complications with the minimally invasive approach. METHODS: A randomized, prospective trial (NCT01526486) was designed to compare outcomes for patients undergoing VIL versus OIL...
August 2, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28762757/molecular-characterization-and-phylogenetic-analysis-of-virulent-marek-s-disease-virus-field-strain-in-broiler-chickens-in-japan
#6
Hoda A Abd-Ellatieff, Abdelrahman A Abou Rawash, Hany F Ellakany, Wael M Goda, T Suzuki, Tokuma Yanai
Marek's disease (MD) is a lymphoproliferative disease causing a serious threat in poultry production. Field strains of Marek's disease virus (MDVs) are continuously re-emerging, causing great economical losses to the poultry industry worldwide in spite of the intensive vaccination and restrictive management policy used. Histopathological and molecular characterizations of MDVs are essential for monitoring the changes of viruses and evaluating the effectiveness of existing vaccines. During 2016, 190 visceral tumor tissues representing 30 vaccinated chicken flocks from Gifu prefecture, Japan were analyzed...
August 1, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28709448/no-added-diagnostic-value-of-non-phosphorylated-tau-fraction-p-taurel-in-csf-as-a-biomarker-for-differential-dementia-diagnosis
#7
Joery Goossens, Maria Bjerke, Hanne Struyfs, Ellis Niemantsverdriet, Charisse Somers, Tobi Van den Bossche, Sara Van Mossevelde, Bart De Vil, Anne Sieben, Jean-Jacques Martin, Patrick Cras, Johan Goeman, Peter Paul De Deyn, Christine Van Broeckhoven, Julie van der Zee, Sebastiaan Engelborghs
BACKGROUND: The Alzheimer's disease (AD) cerebrospinal fluid (CSF) biomarkers Aβ1-42, t-tau, and p-tau181 overlap with other diseases. New tau modifications or epitopes, such as the non-phosphorylated tau fraction (p-taurel), may improve differential dementia diagnosis. The goal of this study is to investigate if p-taurel can improve the diagnostic performance of the AD CSF biomarker panel for differential dementia diagnosis. METHODS: The study population consisted of 45 AD, 45 frontotemporal lobar degeneration (FTLD), 45 dementia with Lewy bodies (DLB), and 21 Creutzfeldt-Jakob disease (CJD) patients, and 20 cognitively healthy controls...
July 14, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28635675/co-infection-with-marek-s-disease-virus-and-reticuloendotheliosis-virus-increases-illness-severity-and-reduces-marek-s-disease-vaccine-efficacy
#8
Guo-Rong Sun, Yan-Ping Zhang, Lin-Yi Zhou, Hong-Chao Lv, Feng Zhang, Kai Li, Yu-Long Gao, Xiao-Le Qi, Hong-Yu Cui, Yong-Qiang Wang, Li Gao, Qing Pan, Xiao-Mei Wang, Chang-Jun Liu
Marek's disease virus (MDV) and reticuloendotheliosis virus (REV) cause Marek's disease (MD) and reticuloendotheliosis (RE), respectively. Co-infection with MDV and REV is common in chickens, causing serious losses to the poultry industry. However, experimental studies of such co-infection are lacking. In this study, Chinese field strains of MDV (ZW/15) and REV (JLR1501) were used as challenge viruses to evaluate the pathogenicity of co-infection and the influence of MD vaccination in chickens. Compared to the MDV-challenged group, the mortality and tumor rates increased significantly by 20...
June 21, 2017: Viruses
https://www.readbyqxmd.com/read/28630260/cholesterol-auxotrophy-and-intolerance-to-ezetimibe-in-mice-with-srebp-2-deficiency-in-the-intestine
#9
Shunxing Rong, Jeffrey McDonald, Luke Engelking
Sterol regulatory element-binding protein-2 (SREBP-2) activates transcription of all genes needed for cholesterol biosynthesis. To study SREBP-2 function in intestine, we generated a mouse model (Vil-BP2(-/-) ) in which Cre recombinase ablates SREBP-2 in intestinal epithelia. Intestines of Vil-BP2(-/-) mice had reduced expression of genes required for sterol synthesis, in vivo sterol synthesis rates, and epithelial cholesterol contents. On a cholesterol-free diet, they displayed chronic enteropathy with histological abnormalities of both villi and crypts, growth restriction, and reduced survival that was prevented by supplementation of cholesterol in the diet...
June 19, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28591779/elucidating-the-biological-roles-of-insulin-and-its-receptor-in-murine-intestinal-growth-and-function
#10
Stina Rikke Jensen, Sarah E Wheeler, Henning Hvid, Jonas Ahnfelt-Rønne, Bo Falck Hansen, Erica Nishimura, Grith Skytte Olsen, Patricia L Brubaker
The role of the intestinal insulin receptor (IR) is not well understood. We therefore explored the effect of insulin (300 nmol/kg per day for 12 days) on the intestine in sex-matched C57Bl/6J mice. The intestinal and metabolic profiles were also characterized in male and female intestinal-epithelial IR knockout (IE-irKO) mice compared with all genetic controls on a chow diet or Western diet (WD) for 4 to 12 weeks. Insulin treatment did not affect intestinal size, intestinal resistance, or metabolic genes, but it reduced proximal-colon crypt depth and acutely increased colonic serine/threonine-specific protein kinase B (AKT) activation...
August 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28491268/umeclidinium-in-chronic-obstructive-pulmonary-disease-latest-evidence-and-place-in-therapy
#11
REVIEW
Kesavan Suresh Babu, Jaymin Bhagwanji Morjaria
Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity, mortality and health care expenditure throughout the world. COPD guidelines recommend the use of long-acting muscarinic antagonist (LAMA) either alone or in combination with a long-acting β2 agonist (LABA). For over 10 years, tiotropium was the only LAMA that was used in the management of COPD. Over the past few years, various new drugs have been identified that act on the muscarinic receptors and β2 receptors. Umeclidinium (Umec) is a new LAMA currently approved for use in patients with COPD either as monotherapy or in combination with vilanterol (Vil)...
April 2017: Therapeutic Advances in Chronic Disease
https://www.readbyqxmd.com/read/28453840/modulation-of-the-host-environment-by-human-cytomegalovirus-with-viral-interleukin-10-in-peripheral-blood
#12
Vivian P Young, Margarette C Mariano, Carolyn C Tu, Kathryn M Allaire, Selmir Avdic, Barry Slobedman, Juliet V Spencer
Background: Human cytomegalovirus (HCMV) is a herpesvirus with both lytic and latent life cycles. Human cytomegalovirus encodes 2 viral cytokines that are orthologs of human cellular interleukin 10 (cIL-10). Both cytomegalovirus interleukin 10 (cmvIL-10) and Latency-associated cytomegalovirus interleukin 10 (LAcmvIL-10) (collectively vIL-10) are expressed during lytic infection and cause immunosuppressive effects that impede virus clearance. LAcmvIL-10 is also expressed during latent infection of myeloid progenitor cells and monocytes and facilitates persistence...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28451945/herpesviral-capture-of-immunomodulatory-host-genes
#13
REVIEW
Günther Schönrich, Mohammed O Abdelaziz, Martin J Raftery
Herpesviruses have acquired numerous genes from their hosts. Although these homologs are not essential for viral replication, they often have important immunomodulatory functions that ensure viral persistence in the host. Some of these viral molecules are called virokines as they mimic cellular cytokines of their host such as interleukin-10 (cIL-10). In recent years, many viral homologs of IL-10 (vIL-10s) have been discovered in the genome of members of the order Herpesvirales. For some, gene and protein structure as well as biological activity and potential use in the clinical context have been explored...
April 27, 2017: Virus Genes
https://www.readbyqxmd.com/read/28409356/flair-to-visualize-veins-in-white-matter-lesions-a-new-tool-for-the-diagnosis-of-multiple-sclerosis
#14
T Campion, R J P Smith, D R Altmann, G C Brito, B P Turner, J Evanson, I C George, P Sati, D S Reich, M E Miquel, K Schmierer
OBJECTIVE: To explore the potential of a post-processing technique combining FLAIR and T2* (FLAIR*) to distinguish between lesions caused by multiple sclerosis (MS) from cerebral small vessel disease (SVD) in a clinical setting. METHODS: FLAIR and T2* head datasets acquired at 3T of 25 people with relapsing MS (pwRMS) and ten with pwSVD were used. After post-processing, FLAIR* maps were used to determine the proportion of white matter lesions (WML) showing the 'vein in lesion' sign (VIL), a characteristic histopathological feature of MS plaques...
April 13, 2017: European Radiology
https://www.readbyqxmd.com/read/28400195/egfr-in-tumor-associated-myeloid-cells-promotes-development-of-colorectal-cancer-in-mice-and-associates-with-outcomes-of%C3%A2-patients
#15
Sriram Srivatsa, Mariel C Paul, Claudia Cardone, Martin Holcmann, Nicole Amberg, Paulina Pathria, Michaela A Diamanti, Markus Linder, Gerald Timelthaler, Hans P Dienes, Lukas Kenner, Fritz Wrba, Gerald W Prager, Stefan Rose-John, Robert Eferl, Giuseppina Liguori, Gerardo Botti, Erika Martinelli, Florian R Greten, Fortunato Ciardiello, Maria Sibilia
BACKGROUND & AIMS: Inhibitors of the epidermal growth factor receptor (EGFR) are the first-line therapy for patients with metastatic colorectal tumors without RAS mutations. However, EGFR inhibitors are ineffective in these patients, and tumor level of EGFR does not associate with response to therapy. We screened human colorectal tumors for EGFR-positive myeloid cells and investigated their association with patient outcome. We also performed studies in mice to evaluate how EGFR expression in tumor cells and myeloid cells contributes to development of colitis-associated cancer and Apc(Min)-dependent intestinal tumorigenesis...
July 2017: Gastroenterology
https://www.readbyqxmd.com/read/28395046/a-qualitative-study-of-survival-strategies-used-by-low-income-black-women-who-experience-intimate-partner-violence
#16
Noelle M St Vil, Bushra Sabri, Vania Nwokolo, Kamila A Alexander, Jacquelyn C Campbell
Women who experience intimate partner violence (IPV) are often portrayed as helpless victims. Yet many women who experience IPV implement strategies to help them survive the abuse. This qualitative study sought to explore the survivor strategies used by low-income black women who experience IPV. Authors used a semistructured interview guide to survey 26 survivors who reported being in an IPV relationship in the past two years. Thematic analysis revealed three types of survivor strategies used by low-income black women: (1) internal (use of religion and becoming self-reliant), (2) interpersonal (leave the abuser or fight back), and (3) external (reliance on informal, formal, or both kinds of sources of support)...
January 1, 2017: Social Work
https://www.readbyqxmd.com/read/28244683/rapamycin-treatment-dose-dependently-improves-the-cystic-kidney-in-a-new-adpkd-mouse-model-via-the-mtorc1-and-cell-cycle-associated-cdk1-cyclin-axis
#17
Ao Li, Song Fan, Yuchen Xu, Jialin Meng, Xufeng Shen, Jun Mao, Li Zhang, Xiansheng Zhang, Gilbert Moeckel, Dianqing Wu, Guanqing Wu, Chaozhao Liang
Although translational research into autosomal dominant polycystic kidney disease (ADPKD) and its pathogenesis has made considerable progress, there is presently lack of standardized animal model for preclinical trials. In this study, we developed an orthologous mouse model of human ADPKD by cross-mating Pkd2 conditional-knockout mice (Pkd2(f3) ) to Cre transgenic mice in which Cre is driven by a spectrum of kidney-related promoters. By systematically characterizing the mouse model, we found that Pkd2(f3/f3) mice with a Cre transgene driven by the mouse villin-1 promoter (Vil-Cre;Pkd2(f3/f3) ) develop overt cysts in the kidney, liver and pancreas and die of end-stage renal disease (ESRD) at 4-6 months of age...
August 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28160571/the-oncoprotein-gankyrin-promotes-the-development-of-colitis-associated-cancer-through-activation-of-stat3
#18
Toshiharu Sakurai, Hiroaki Higashitsuji, Hiroshi Kashida, Tomohiro Watanabe, Yoriaki Komeda, Tomoyuki Nagai, Satoru Hagiwara, Masayuki Kitano, Naoshi Nishida, Takaya Abe, Hiroshi Kiyonari, Katsuhiko Itoh, Jun Fujita, Masatoshi Kudo
Although long-standing colonic inflammation due to refractory inflammatory bowel disease (IBD) promotes the development of colitis-associated cancer (CAC), the molecular mechanisms accounting for the development of CAC remains largely unknown. In this study, we investigated the role of gankyrin in the development of CAC since gankyrin is overexpressed in sporadic colorectal cancers. We analyzed gene expression of colon tissues obtained from 344 patients with IBD and CAC and found that expression of gankyrin was much higher in colonic mucosa of patients with refractory IBD than in those with IBD in remission...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28158653/human-cytomegalovirus-hcmv-modulates-the-host-environment-with-vil-10-in-peripheral-blood
#19
Vivian P Young, Margarette C Mariano, Carolyn C Tu, Kathryn M Allaire, Selmir Avdic, Barry Slobedman, Juliet V Spencer
No abstract text is available yet for this article.
February 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28087701/the-ubiquitin-ligase-nedd4l-regulates-the-na-k-2cl-co-transporter-nkcc1-slc12a2-in-the-colon
#20
Chong Jiang, Hiroshi Kawabe, Daniela Rotin
The ubiquitin ligase Nedd4-like (Nedd4L, or Nedd4-2) binds to and regulates stability of the epithelial Na(+) channel (ENaC) in salt-absorbing epithelia in the kidney, lung, and other tissues. Its role in the distal colon, which also absorbs salt and fluid and expresses ENaC, is unknown. Using a conditional knock-out approach to knock out Nedd4L in mice intestinal epithelium (Nedd4L(f/f) ;Vil-Cre(ERT2) ) we show here that Nedd4L depletion leads to a higher steady-state short circuit current (Isc) in mouse distal colon tissue relative to controls...
February 24, 2017: Journal of Biological Chemistry
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