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https://www.readbyqxmd.com/read/28106446/exacerbating-the-cosmological-constant-problem-with-interacting-dark-energy-models
#1
M C David Marsh
Future cosmological surveys will probe the expansion history of the Universe and constrain phenomenological models of dark energy. Such models do not address the fine-tuning problem of the vacuum energy, i.e., the cosmological constant problem (CCP), but can make it spectacularly worse. We show that this is the case for "interacting dark energy" models in which the masses of the dark matter states depend on the dark energy sector. If realized in nature, these models have far-reaching implications for proposed solutions to the CCP that require the number of vacua to exceed the fine-tuning of the vacuum energy density...
January 6, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28104988/health-related-quality-of-life-in-gastroesophageal-reflux-patients-with-noncardiac-chest-pain-emphasis-on-the-role-of-psychological-distress
#2
Lei Zhang, Lei Tu, Jie Chen, Jun Song, Tao Bai, Xue-Lian Xiang, Rui-Yun Wang, Xiao-Hua Hou
AIM: To investigate the effects of depression and anxiety on health-related quality of life (QoL) in gastroesophageal reflux disease (GERD) patients and those suffering from cardiac (CCP) and noncardiac (NCCP) chest pain in Wuhan, China. METHODS: In this cross-sectional study, a total of 358 consecutive patients with GERD were enrolled in Wuhan, China, of which 176 subjects had complaints of chest pain. Those with chest pain underwent coronary angiography and were divided into a CCP group (52 cases) and NCCP group (124 cases)...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28100358/-study-on-the-effect-and-predictive-to-bronchiectasis-combined-with-rheumatoid-arthritis
#3
W Ding, Y F Zhao, H W Lu, S Liang, K B Cheng, J F Xu
Objective: To explore the clinical characteristics of bronchiectasis(BR)coexisting in patients with rheumatoid arthritis (RA). Methods: One hundred and forty-eight bronchiectasis patients were retrospectively analyzed. These cases were all diagnosed in the Respiratory Department of Shanghai Pulmonary Hospital and Shanghai Gongli Hospital of Pudong New Area during Jan. 2012 to Dec.2015.The patients consisted of 74 males and 74 females, aging from 45 to 79 [mean(65±11)] years. In these patients, coexisting rheumatoid arthritis was found in 34 males and 36 females, aging from 45 to 79[mean(68±12)] years(RA-BR group)...
January 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28087802/cytochrome-c-peroxidase-ccp-is-a-molecular-determinant-of-the-oxidative-stress-response-in-the-extreme-acidophilic-leptospirillum-sp-cf-1
#4
C Zapata, B Paillavil, R Chávez, P Álamos, G Levicán
Bioleaching processes are used to recover metals from sulfidic ores. Biofilm formation on ores is important for bioleaching because the attached microorganisms start the leaching process by concentrating ferric ions in the extracellular matrix. It has been shown that hydrogen peroxide is spontaneously generated on the surface of ores and that it negatively influences the growth and activity of microorganisms. However, the mechanism by which bioleaching microorganisms tolerate exogenous H2O2 as an adaptive trait remains elusive...
January 12, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28070627/-tendinopathy-in-rheumatic-diseases
#5
M Henniger, S Rehart
Involvement of tendons and tendon sheaths is frequently found in the most common inflammatory systemic diseases, rheumatoid arthritis and spondyloarthritis. In rheumatoid arthritis tendon manifestations occur as tenosynovitis, with swelling and pain of the tendons mainly on the hands and feet. In spondyloarthritis the involvement of tendons presents as enthesitis with pain and swelling directly at the attachment points of tendons to the bony structures and more commonly in the lower extremities. Pathological alterations of tendons can be normally visualized by sonography and only sometimes with magnetic resonance imaging (MRI) or scintigraphy...
January 9, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28053322/vav1-regulates-experimental-autoimmune-arthritis-and-is-associated-with-anti-ccp-negative-rheumatoid-arthritis
#6
A O Guerreiro-Cacais, U Norin, A Gyllenberg, R Berglund, A D Beyeen, E Petit-Teixeira, F Cornélis, A Saoudi, G J Fournié, R Holmdahl, L Alfredsson, L Klareskog, M Jagodic, T Olsson, I Kockum, L Padyukov
Rheumatoid arthritis (RA) patients can be stratified into two subgroups defined by the presence or absence of antibodies against citrullinated circular peptides (anti-CCP) with most of the genetic association found in anti-CCP positive RA. Here we addressed the role of VAV1, previously associated to multiple sclerosis (MS), in the pathogenesis of RA in experimental models and in a genetic association study. Experimental arthritis triggered by pristane or collagen type II was induced in DA rats and in the DA...
January 5, 2017: Genes and Immunity
https://www.readbyqxmd.com/read/28035541/effect-of-artemisia-annua-extract-on-treating-active-rheumatoid-arthritis-a-randomized-controlled-trial
#7
Min Yang, Ming-Yang Guo, Yong Luo, Ming-Dong Yun, Jiao Yan, Tao Liu, Chang-Hong Xiao
OBJECTIVE: To investigate the effect and safety of the complementary use of the extract of Artemisia annua L. (EAA) on treating active rheumatoid arthritis (RA). METHODS: A randomized controlled clinical trial was performed. All the 159 participates with active RA were randomly assigned to the control group (80 cases) and EAA group (79 cases). In the control group, patients were medicated with leflflunomide and methotrexate for 48 weeks; and patients in the EAA group were administrated with leflflunomide, methotrexate plus EAA (30 g/d)...
December 29, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28033243/prognostic-values-of-4-risk-scores-in-chinese-patients-with-chest-pain-prospective-2-centre-cohort-study
#8
Xiao-Hui Chen, Hui-Lin Jiang, Yun-Mei Li, Cangel Pui Yee Chan, Jun-Rong Mo, Chao-Wei Tian, Pei-Yi Lin, Colin A Graham, Timothy H Rainer
Four risk scores for stratifying patients with chest pain presenting to emergency departments (EDs) (namely Thrombolysis in myocardial infarction [TIMI], Global registry for acute coronary events [GRACE], Banach and HEART) have been developed in Western settings but have never been compared and validated in Chinese patients. We aimed to find out to the number of MACE within 7 days, 30 days, and 6 months after initial ED presentation, and also to compare the prognostic performance of these scores in Chinese patients with suspected cardiac chest pain (CCP) to predict 7-day, 30-day, and 6-month major adverse cardiac events (MACE)...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28028869/leucocyte-protein-trojan-a-possible-regulator-of-apoptosis
#9
Petar Petrov, Riikka Syrjänen, Tatsuya Uchida, Olli Vainio
Trojan is a leucocyte-specific protein, cloned from chicken embryonic thymocyte cDNA library. The molecule is a type I transmembrane protein with an extracellular CCP domain, followed by two FN3 domains. Its cytoplasmic tail is predicted to possess a MAPK docking and a PKA phosphorylation sites. Trojan has been proposed to have an anti-apoptotic role based on its differential expression on developing thymocyte subpopulations. Using a chicken cell line, our in vitro studies showed that upon apoptosis induction, Trojan expression rises dramatically on the surface of surviving cells and gradually decreases towards its normal levels as cells recover...
December 28, 2016: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28027749/pancreatic-cancer-in-patients-with-chronic-calcifying-pancreatitis-computed-tomography-findings-a-retrospective-analysis-of-48-patients
#10
Amir Mohamed, Ahmet Ayav, Arthur Belle, Xavier Orry, Jean-Baptiste Chevaux, Valerie Laurent
OBJECTIVE: Chronic calcifying pancreatitis (CCP) is a risk factor for pancreatic cancer (PC). Symptoms of PC are non-specific in patients with CCP, and diagnostic imaging can be difficult. Some studies have shown that diagnosis may take several months, leading to delays in treatment (Lin et al., 2015; Lennon et al., 2014) [2,3]. The aim of this study was to describe the radiological signs of PC in patients with CCP. METHODS: This retrospective, single-center study was conducted between January 2004 and December 2014...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28004243/zero-profile-anchored-cage-reduces-risk-of-postoperative-dysphagia-compared-with-cage-with-plate-fixation-after-anterior-cervical-discectomy-and-fusion
#11
REVIEW
ShanWen Xiao, ZhuDe Liang, Wu Wei, JinPei Ning
PURPOSE: To compare the rate of postoperative dysphagia between zero-profile anchored cage fixation (ZPC group) and cage with plate fixation (CP group) after anterior cervical discectomy and fusion (ACDF). METHODS: A meta-analysis of cohort studies between zero-profile anchored cage and conventional cage with plate fixation after ACDF for the treatment of cervical diseases from 2008 to May 2016. An extensive search of studies was performed in PubMed, Medline, Embase, Cochrane library and Google Scholar...
December 21, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28003333/regulation-of-clathrin-mediated-endocytosis-by-hierarchical-allosteric-activation-of-ap2
#12
Zuzana Kadlecova, Stephanie J Spielman, Dinah Loerke, Aparna Mohanakrishnan, Dana Kim Reed, Sandra L Schmid
The critical initiation phase of clathrin-mediated endocytosis (CME) determines where and when endocytosis occurs. Heterotetrameric adaptor protein 2 (AP2) complexes, which initiate clathrin-coated pit (CCP) assembly, are activated by conformational changes in response to phosphatidylinositol-4,5-bisphosphate (PIP2) and cargo binding at multiple sites. However, the functional hierarchy of interactions and how these conformational changes relate to distinct steps in CCP formation in living cells remains unknown...
January 2, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/27992136/h%C3%A3-ufigkeit-und-einteilung-kutaner-manifestationen-bei-rheumatoider-arthritis
#13
Mirjana Ziemer, Anne-Katrin Müller, Gert Hein, Peter Oelzner, Peter Elsner
HINTERGRUND UND FRAGESTELLUNG: Hautveränderungen bei rheumatoider Arthritis (RA) sind nur in wenigen Studien an größeren Patientenkollektiven untersucht. Deshalb sollen hier die aktuelle Prävalenz und das Spektrum an Hautveränderungen bei RA unter Berücksichtigung von Krankheitsaktivitäts-Scores, Anti-CCP-Antikörpern sowie neueren medikamentösen Therapien erfasst werden. PATIENTEN UND METHODIK: Zwischen November 2006 und Juli 2007 wurden prospektiv 214 Patienten, die im Funktionsbereich Rheumatologie mit RA behandelt wurden, erfasst...
December 2016: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/27987497/-significance-of-different-t-follicular-helper-subsets-in-rheumatoid-arthritis
#14
X M Chen, J Li, X Y Zhang, Y B Jin, D Yu, X L Sun, L J Wu, J He, Z G Li
OBJECTIVE: To detect the expressions of T follicular helper (Tfh) subsets and T follicular helper effect memory (Tfhem) cells in circulation of patients with rheumatoid arthritis (RA), as well as to examine their roles in providing biomarkers for active RA. METHODS: This study enrolled 41 patients with RA, who were navely-treated or had no application of hormone and disease-modifying anti-rheumatic drugs in recent 3 months, as well as 32 healthy controls. The percentages of Tfhem (CD4(+)CXCR5(+)CCR7(low)PD1(high)) cells, Tfh (CD3(+)CD4(+)CXCR5(+)CD45RA(-)) subsets, Tfh1 (CXCR3(+)CCR6(-)Tfh),Tfh2 (CXCR3(-)CCR6(-)Tfh),and Tfh17 (CXCR3(-)CCR6(+)Tfh), were determined by flow cytometry of peripheral blood from the patients with RA and health controls...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27987495/-significance-of-v-raf-murine-sarcoma-viral-oncogene-homologue-b1-in-rheumatoid-arthritis
#15
Y J Jin, L Sun, L Yang, R Xing, X Y Liu
OBJECTIVE: To detect serum v-raf murine sarcoma viral oncogene homologue B1 (BRAF) protein levels and to investigate their clinical significance in rheumatoid arthritis (RA) patients. METHODS: Serum samples were obtained from 78 RA patients, 32 osteoarthritis (OA) patients, 16 systemic lupus erythematosus (SLE) patients, 16 gout patients, 16 ankylosing spondylitis (AS) patients, 16 Sjogren syndrome (SS) patients and 30 healthy controls. BRAF protein in the sera was examined by enzyme-linked immunosorbent assay (ELISA)...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27987494/-significance-of-glucose-6-phosphate-isomerase-assay-in-early-diagnosis-of-rheumatoid-arthritis
#16
J Xu, J Liu, L Zhu, X W Zhang, Z G Li
OBJECTIVE: To explore the titer of glucose-6-phosphate isomerase (GPI) for early diagnosis of the outpatient with rheumatoid arthritis (RA) in real life, and to analyze its relationship with disease activity. METHODS: In the study, 1 051 patients with arthritis were collected in the group who had joints tender and swelling, and 90 cases of healthy people as a control group. ELISA method was used to detect the serum level of GPI, and according to clinical features and laboratory test, all the patients including 525 RA patients, the other patients including osteoarthritis (OA), 134 cases of seronegative spine joint disease (SpA), 104 cases of systemic lupus erythematosus (SLE), 31 cases of primary Sjogren syndrome (pSS), 24 cases of gout arthritis (GA), 22 cases of other connective tissue diseases (including polymyalgia rheumatica, dermatomyositis, systemic sclerosis, adult Still disease) and 46 cases of other diseases (including 165 cases of osteoporosis, avascular necrosis of the femoral head, traumatic osteomyelitis, bone and joint disease, juvenile rheumatoid arthritis, tumor)...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27987492/-significance-and-diagnostic-value-of-synovial-fluid-anti-cyclic-citrullinated-peptide-antibody-and-anti-mutated-citrullinated-vimentin-antibodies-in-patients-with-serum-negative-rheumatoid-arthritis
#17
S J Qu, H Ye, R L Jia, Z G Li
OBJECTIVE: To explore the significance of synovial fluid (SF) anti-cyclic citrullinated peptide (CCP) antibodies and anti-mutated citrullinated vimentin (MCV) antibodies in the diagnosis of serum negative rheumatoid arthritis (SNRA). METHODS: Enzyme linked immunosorbent assay (ELISA) method was apllied in the detection of two groups of patients with knee joint fluid resistance against CCP antibody and antibody of MCV, the experimental group to SNRA patients, a total of 29 cases, and the control for patients with osteoarthritis (OA), a total of 28 cases, and clinical manifestations and laboratory parameters of the two groups were collected...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27982187/effect-of-acid-etching-silane-and-thermal-cycling-on-the-bond-strength-of-metallic-brackets-to-ceramic
#18
Natália Regina Santos de Matos, Ana Rosa Costa, Heloísa Cristina Valdrighi, Américo Bortolazzo Correr, Silvia Amélia Vedovello, Milton Santamaria, Lourenço Correr-Sobrinho
The aim of this study was to evaluate the effect of silanes, thermal cycling and acid etching on the shear bond strength (SBS) of metallic brackets to feldspathic ceramic. Feldspathic ceramic cylinders (Groups 1, 2, 5 and 6) were etched for 60 s with 10% hydrofluoric acid and Groups 3, 4, 7 and 8, without acid etching. Two layers of silane Clearfil Ceramic Primer (CCP, Groups 1 to 4) and two layers of RelyX Ceramic Primer (RCP, groups 5 to 8) were applied and dried for 60 s. Brackets were bonded to the cylinders with Transbond XT and light-activated for 40 s with Bluephase G2...
October 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27980506/atomistic-modelling-of-scattering-data-in-the-collaborative-computational-project-for-small-angle-scattering-ccp-sas
#19
Stephen J Perkins, David W Wright, Hailiang Zhang, Emre H Brookes, Jianhan Chen, Thomas C Irving, Susan Krueger, David J Barlow, Karen J Edler, David J Scott, Nicholas J Terrill, Stephen M King, Paul D Butler, Joseph E Curtis
The capabilities of current computer simulations provide a unique opportunity to model small-angle scattering (SAS) data at the atomistic level, and to include other structural constraints ranging from molecular and atomistic energetics to crystallography, electron microscopy and NMR. This extends the capabilities of solution scattering and provides deeper insights into the physics and chemistry of the systems studied. Realizing this potential, however, requires integrating the experimental data with a new generation of modelling software...
December 1, 2016: Journal of Applied Crystallography
https://www.readbyqxmd.com/read/27966336/anticyclic-citrullinated-peptide-antibody-in-rheumatoid-arthritis-a-cross-sectional-study-in-iran
#20
Irandokht Shenavar Masooleh, Asghar Hajiabbasi, Habib Zayeni, Atefeh Ghanbari, Violet Zaker Esteghamati, Banafsheh Ghavidel Parsa, Amir Hassankhani
BACKGROUND/AIM: Studies have shown that anticyclic citrullinated peptide antibody (anti-CCP) titers can be useful in the diagnosis of rheumatoid arthritis (RA). We evaluate the association between anti-CCP antibody titers and the demographic, clinical, and laboratory characteristics of RA patients. Moreover, we explore whether there is any relation between joint destruction and demographic and clinical characteristics of RA patients. MATERIALS AND METHODS: One hundred and four RA patients with positive anti-CCP titers were compared to 104 RA patients with negative anti-CCP titers...
November 17, 2016: Turkish Journal of Medical Sciences
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