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https://www.readbyqxmd.com/read/28217895/serum-urate-levels-predict-joint-space-narrowing-in-non-gout-patients-with-medial-knee-osteoarthritis
#1
Svetlana Krasnokutsky, Charles Oshinsky, Mukundan Attur, Sisi Ma, Hua Zhou, Fangfei Zheng, Meng Chen, Jyoti Patel, Jonathan Samuels, Virginia C Pike, Ravinder Regatte, Jenny Bencardino, Leon Rybak, Steven Abramson, Michael H Pillinger
OBJECTIVE: OA pathogenesis includes both mechanical and inflammatory features. Studies have implicated synovial fluid urate (UA) as a potential OA biomarker, possibly reflecting chondrocyte damage. Whether serum urate (sUA) levels reflect/contribute to OA is unknown. We investigated whether sUA predicts OA progression in a non-gout knee OA population. METHODS: Eighty-eight subjects with medial knee OA (BMI <33) but without gout were included. Baseline sUA was measured in previously banked serum...
February 19, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28216311/meniscal-extrusion-and-bone-marrow-lesions-are-associated-with-incident-and-progressive-knee-osteoarthritis
#2
Andrew J Teichtahl, Flavia M Cicuttini, François Abram, Yuanyuan Wang, Jean-Pierre Pelletier, Pierre Dodin, Johanne Martel-Pelletier
OBJECTIVE: Whether meniscal extrusion and bone marrow lesions (BMLs) are independently associated with the risk of knee osteoarthritis (OA) is unknown. METHODS: Data was extracted from the Osteoarthritis Initiative (OAI) cohort. Participants were grouped according to the absence (Kellgren-Lawrence (KL) grade ≤ 1, n = 2120) or presence (KL ≥ 2, n = 2249) of ROA. Baseline meniscal extrusion and tibial BMLs were assessed. Tibial plateau cartilage volume was assessed at baseline and 72 months, while radiographic disease was assessed at baseline and 48 months...
February 12, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28212675/sex-differences-in-the-association-of-skin-advanced-glycation-endproducts-with-knee-osteoarthritis-progression
#3
Charles B Eaton, Maria Sayeed, Syeda Ameernaz, Mary B Roberts, John D Maynard, Jeffrey B Driban, Timothy E McAlindon
BACKGROUND: The accumulation of advanced glycation endproducts in articular cartilage has been suggested as an etiologic factor in the development and progression of knee osteoarthritis (KOA). METHODS: We conducted a prospective cohort study of skin advanced glycation endproducts (sAGEs) measured non-invasively by skin intrinsic fluorescence and the relationship between sAGE KOA progression in 160 men and 287 women in a sub-cohort of the Osteoarthritis Initiative at a single site...
February 17, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28206712/medial-femur-t2-z-scores-predict-the-probability-of-knee-structural-worsening-over-4-8-years-data-from-the-osteoarthritis-initiative
#4
Gabby B Joseph, Charles E McCulloch, Michael C Nevitt, Alexandra S Gersing, Benedikt J Schwaiger, Martin Kretzschmar, Ursula Heilmeier, Thomas M Link
OBJECTIVE: The purpose of this study was to determine the probability of structural worsening of knee cartilage and whole joint degeneration over 4-8 years based on cartilage T2 Z-scores at baseline. DESIGN: Right knees with Kellgren-Lawrence (KL) grades of 0-2 in 587 participants from the Osteoarthritis Initiative were studied. 3T MR images were used to perform baseline cartilage T2 quantification and assess 4-year changes in cartilage morphology (WORMS scoring) in 5 regions...
February 16, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28202509/sodium-channel-subunit-scnn1b-suppresses-gastric-cancer-growth-and-metastasis-via-grp78-degradation
#5
Jun Yu, Qian Yun, Chi Chun Wong, Jiaying Xu, Huarong Chen, Yanquan Zhang, Wei Kang, Hua Wang, Li Zhang, Weilin Li, Eagle Sh Chu, Minnie Yy Go, Philip Wy Chiu, Enders Kw Ng, Francis Kl Chan, Joseph Jy Sung, Jianmin Si
There remains a paucity of functional biomarkers in gastric cancer. Here we report the identification of the sodium channel subunit SCNN1B as a candidate biomarker in gastric cancer (GC). SCNN1B mRNA expression was silenced commonly by promoter hypermethylation in GC cell lines and primary tumor tissues. Tissue microarray analysis revealed that high expression of SCNN1B was an independent prognostic factor for longer survival in GC patients, especially those with late-stage disease. Functional studies demonstrated that SCNN1B overexpression was sufficient to suppress multiple features of cancer cell pathophysiology in vitro and in vivo...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28202322/sexual-health-competencies-for-undergraduate-medical-education-in-north-america
#6
Carey Roth Bayer, Kristen L Eckstrand, Gail Knudson, Jean Koehler, Scott Leibowitz, Perry Tsai, Jamie L Feldman
INTRODUCTION: The number of hours spent teaching sexual health content and skills in medical education continues to decrease despite the increase in sexual health issues faced by patients across the lifespan. In 2012 and 2014, experts across sexuality disciplines convened for the Summits on Medical School Education and Sexual Health to strategize and recommend approaches to improve sexual health education in medical education systems and practice settings. One of the summit recommendations was to develop sexual health competencies that could be implemented in undergraduate medical education curricula...
February 12, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28188391/knee-symptoms-among-adults-at-risk-for-accelerated-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#7
Julie Davis, Charles B Eaton, Grace H Lo, Bing Lu, Lori Lyn Price, Timothy E McAlindon, Mary F Barbe, Jeffrey B Driban
The purpose of this study was to examine if adults who develop accelerated knee osteoarthritis (KOA) have greater knee symptoms with certain activities than those with or without incident common KOA. We conducted a case-control study using data from baseline and the first four annual visits of the Osteoarthritis Initiative. Participants had no radiographic KOA at baseline (Kellgren-Lawrence (KL) <2). We classified 3 groups as follows: (1) accelerated KOA: > = 1 knee developed advance-stage KOA (KL = 3 or 4) within 48 months, (2) common KOA: > = 1 knee increased in radiographic severity (excluding those with accelerated KOA), and (3) no KOA: no change in radiographic severity by 48 months...
February 10, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28186335/characterization-of-a-continuous-agitated-cell-reactor-for-oxygen-dependent-biocatalysis
#8
Asbjørn Toftgaard Pedersen, Teresa Melo de Carvalho, Euan Sutherland, Gustav Rehn, Robert Ashe, John M Woodley
Biocatalytic oxidation reactions employing molecular oxygen as the electron acceptor are difficult to conduct in a continuous flow reactor because of the requirement for high oxygen transfer rates. In this paper, the oxidation of glucose to glucono-1,5-lactone by glucose oxidase was used as a model reaction to study a novel continuous agitated cell reactor (ACR). The ACR consists of ten cells interconnected by small channels. An agitator is placed in each cell, which mixes the content of the cell when the reactor body is shaken by lateral movement...
February 10, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28183805/klotho-expression-in-long-bones-regulates-fgf23-production-during-renal-failure
#9
Jovana Kaludjerovic, Hirotaka Komaba, Tadatoshi Sato, Reinhold G Erben, Roland Baron, Hannes Olauson, Tobias E Larsson, Beate Lanske
Circulating levels of bone-derived fibroblast growth factor 23 (FGF23) increase early during acute and chronic kidney disease and are associated with adverse outcomes. Membrane-bound Klotho acts as a permissive coreceptor for FGF23, and its expression was recently found in osteoblasts/osteocytes. We hypothesized that Klotho in bone cells is part of an autocrine feedback loop that regulates FGF23 expression during renal failure. Thus, we induced renal failure in mice with targeted deletion of Klotho in long bones...
February 9, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28183405/prevalence-and-determinants-of-anxiety-and-depression-in-end-stage-renal-disease-esrd-a-comparison-between-esrd-patients-with-and-without-coexisting-diabetes-mellitus
#10
Russell Kl Yoong, Nandakumar Mooppil, Eric Yh Khoo, Stanton P Newman, Vanessa Yw Lee, Augustine Wc Kang, Konstadina Griva
OBJECTIVE: To compare anxiety and/or depressive symptoms between patients with end-stage renal disease with and without comorbid diabetes and identify factors associated with symptoms of distress in this population. METHODS: Data from two studies (conducted between 2010 and 2014) were pooled. A total of 526 patients on hemodialysis (68.8% with diabetes) completed the Hospital Anxiety and Depression Scale (HADS). Elevated symptoms were defined as HADS-Anxiety or HADS-Depression≥8...
March 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28181842/the-effects-of-hypercapnia-on-cortical-capillary-transit-time-heterogeneity-cth-in-anesthetized-mice
#11
Eugenio Gutiérrez-Jiménez, Hugo Angleys, Peter Mondrup Rasmussen, Irene Klærke Mikkelsen, Kim Mouridsen, Leif Østergaard
Capillary flow patterns are highly heterogeneous in the resting brain. During hyperemia, capillary transit-time heterogeneity (CTH) decreases, in proportion to blood's mean transit time (MTT) in passive, compliant microvascular networks. Previously, we found that functional activation reduces the CTH:MTT ratio, suggesting that additional homogenization takes place through active neurocapillary coupling mechanisms. Here, we examine changes in the CTH:MTT ratio during hypercapnic hyperemia in anesthetized mice (C57Bl/6NTac), expecting that homogenization is smaller than during functional hyperemia...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28178340/sputum-biomarkers-in-ipf-evidence-for-raised-gene-expression-and-protein-level-of-igfbp-2-il-8-and-mmp-7
#12
J Guiot, M Henket, J L Corhay, C Moermans, R Louis
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a rare lung disease of unknown origin leading rapidly to death. This paper addresses the issue of whether sputum induction is a suitable tool to study respiratory tract inflammation and potential biomarkers in IPF compared to COPD, a fibrosing airway wall disease. METHODS: In a cross-sectional analysis, 15 IPF patients, 32 COPD and 30 healthy subjects underwent sputum induction. Total sputum cell counts and the amount of TGF- β, IGF-1, IGF-2, IGFBP-1, IGFBP-2, IGFBP-3, IL-8, IL-13, MMP-7, MMP-9, YKL-40, TNF-α and KL-6 in sputum supernatant were analysed...
2017: PloS One
https://www.readbyqxmd.com/read/28178164/blood-mean-platelet-volume-and-platelet-lymphocyte-ratio-as-new-predictors-of-hip-osteoarthritis-severity
#13
Özlem Taşoğlu, Ali Şahin, Gülşah Karataş, Engin Koyuncu, İrfan Taşoğlu, Osman Tecimel, Neşe Özgirgin
Osteoarthritis (OA) is a low grade systemic inflammatory disease in which many inflammatory mediators are known to be elevated in the peripheric blood. Blood platelet lymphocyte ratio (PLR) and mean platelet volume (MPV) are accepted as novel markers in many of the systemic inflammatory disorders, but have not been investigated in synovitis-free radiographic OA yet.The aim of this study was to evaluate the levels of blood PLR and MPV in radiographic hip OA. A total of 880 patients were evaluated retrospectively and after certain exclusion criteria, 237 of them who have primary hip OA were included...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28164623/decreased-synovial-fluid-%C3%AE-melanocyte-stimulating-hormone-%C3%AE-msh-levels-reflect-disease-severity-in-patients-with-posttraumatic-ankle-osteoarthritis
#14
Guangyu Liu, Yunzhen Chen, Guichun Wang, Jianbing Niu
BACKGROUND: α-Melanocyte-stimulating hormone (α-MSH), an endogenous melanocortin peptide, has been demonstrated to have anti-inflammation effects and protect against cartilage damage. Objective In this study, we aimed to investigate whether α-MSH in ankle joint synovial fluid is associated with the disease severity of posttraumatic ankle osteoarthritis (PTAOA). METHODS: 66 PTAOA patients undergoing ankle arthroscopical debridement or ankle joint replacement were enrolled in the study...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28132085/tibial-condylar-valgus-osteotomy-tcvo-for-osteoarthritis-of-the-knee-5-year-clinical-and-radiological-results
#15
Ko Chiba, Akihiko Yonekura, Takashi Miyamoto, Makoto Osaki, Goji Chiba
PURPOSE: Tibial condylar valgus osteotomy (TCVO) is a type of opening-wedge high tibial osteotomy for advanced medial knee osteoarthritis (OA) with subluxated lateral joint. We report the concept, the current surgical technique with a locking plate, and the short-term clinical and radiological results of this procedure. METHODS: 11 knees with medial OA and a widened lateral joint were treated by TCVO (KL stage III: 6, IV: 5). In this procedure, by the L-shaped osteotomy from the medial side of the proximal tibia to the intercondylar eminence and the valgus correction, lateralization of the mechanical axis and reduction of the subluxated lateral joint are obtained with early postoperative weight-bearing...
January 28, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28129488/chondrocalcinosis-in-knee-joints-is-associated-with-pain-but-not-with-synovitis-data-from-the-osteoarthritis-initiative
#16
Bobby Kwanghoon Han, Woojin Kim, Jingbo Niu, Shristi Basnyat, Veniamin Barshay, John P Gaughan, Charlene Williams, Sharon L Kolasinski, David T Felson
OBJECTIVE: To evaluate the relationship between chondrocalcinosis and pain or synovitis in knee joints by examining data from the Osteoarthritis Initiative (OAI). METHODS: Data were obtained from the OAI public use data sets. The relationship between chondrocalcinosis on baseline knee radiograph and pain at baseline and at 4 years was examined. Analyses were adjusted for age, gender, body mass index, and Kellgren-Lawrence (KL) grade and the correlation between two knees in a subject was controlled using generalized estimating equations...
January 27, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28128990/differing-expression-of-cytokines-and-tumor-markers-in-combined-pulmonary-fibrosis-and-emphysema-compared-to-emphysema-and-pulmonary-fibrosis
#17
Ling Xu, Wei Bian, Xiao-Hua Gu, Ce Shen
This study aimed to explore the different pathogeneses of combined pulmonary fibrosis and emphysema (CPFE) from emphysema and pulmonary fibrosis. The levels of transforming growth factor-β1 (TGF-β1), vascular endothelial growth factor (VEGF), Krebs Von Den Lungen-6 (KL-6), matrix metalloproteinase-9 (MMP-9), tissue inhibitors of metalloproteinases-1 (TIMP-1), cytokeratin 19 fragment (CYFRA21-1), squamous cell carcinoma antigen (SCC), and the telomerase activity in peripheral blood were measured in 38 CPFE patients, 50 pulmonary emphysema patients, and 34 idiopathic pulmonary fibrosis (IPF) patients...
January 27, 2017: COPD
https://www.readbyqxmd.com/read/28128478/glucose-homeostasis-influences-the-risk-of-incident-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#18
Jeffrey B Driban, Charles B Eaton, Mamta Amin, Alina C Stout, Lori Lyn Price, Bing Lu, Grace H Lo, Timothy E McAlindon, Mary F Barbe
We aimed to determine if serum measures of impaired glucose homeostasis (glucose concentrations or glycated serum protein, GSP) or systemic inflammation (high-sensitivity C-reactive protein, CRP) are related to incident typical knee osteoarthritis (KOA) or incident accelerated KOA. We conducted a case-control study using the Osteoarthritis Initiative's baseline and first four annual visits. All participants had no radiographic KOA at baseline (Kellgren-Lawrence [KL] < 2). We classified three groups: (i) incident accelerated KOA: >1 knee developed advance-stage KOA (KL Grade 3 or 4) within 48 months; (ii) incident typical KOA: > 1 knee increased in radiographic scoring within 48 months (excluding those with accelerated KOA); and (iii) No KOA: no change in KL grade by 48 months...
January 27, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28126350/peptostreptococcus-anaerobius-induces-intracellular-cholesterol-biosynthesis-in-colon-cells-to-induce-proliferation-and-causes-dysplasia-in-mice
#19
Ho Tsoi, Eagle Sh Chu, Xiang Zhang, Jianqiu Sheng, Daniel Nakatsu, Siew C Ng, Anthony Wh Chan, Francis Kl Chan, Joseph Jy Sung, Jun Yu
BACKGROUND & AIMS: Stool samples from patients with colorectal cancer (CRC) have a higher abundance of Peptostreptococcus anaerobius than stool from individuals without CRC, based on metagenome sequencing. We investigated whether P anaerobius contributes to colon tumor formation in mice and its possible mechanisms of carcinogenesis. METHODS: We performed quantitative PCR analyses to measure P anaerobius in 112 stool samples and 255 colon biopsies from patients with CRC or advanced adenoma and from healthy individuals (controls) undergoing colonoscopy examination at hospitals in Hong Kong and Beijing...
January 23, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28123043/psychiatric-disorders-and-general-functioning-in-low-birth-weight-adults-a-longitudinal-study
#20
Astrid M W Lærum, Solveig Klæbo Reitan, Kari Anne I Evensen, Stian Lydersen, Ann-Mari Brubakk, Jon Skranes, Marit S Indredavik
OBJECTIVE: To examine psychiatric morbidity and overall functioning in adults born with low birth weight compared with normal birth weight controls at age 26 years and to study longitudinal trajectories of psychiatric morbidity from early adolescence to adulthood. METHODS: Prospective cohort study wherein 44 preterm very low birth weight (≤1500 g), 64 term small for gestational age (SGA; <10th percentile), and 81 control adults were examined using the MINI-International Neuropsychiatric Interview: M...
January 25, 2017: Pediatrics
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