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https://www.readbyqxmd.com/read/28748424/association-of-adam-12-polymorphisms-with-the-risk-of-knee-osteoarthritis-meta-analysis-of-5048-cases-and-6848-controls
#1
Xuerong Hu, Guoli Sun, Weidong Wang
Several studies have suggested the association between ADAM 12 polymorphisms and the risk of osteoarthritis (OA), but the results remained controversial. Therefore, we designed a meta-analysis to systematically evaluate the association on this issue. A literature search for eligible studies was conducted in PubMed, Web of Science and Google Scholar databases. The association between ADAM 12 polymorphisms and knee OA risk was calculated by odds ratios (ORs) and 95% confidence intervals (CIs). Study heterogeneity, sensitivity and publication bias analyses were also conducted...
July 26, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28747195/oleic-acid-induces-down-regulation-of-the-granulosa-cell-identity-marker-foxl2-and-up-regulation-of-the-sertoli-cell-marker-sox9-in-bovine-granulosa-cells
#2
Vengala Rao Yenuganti, Jens Vanselow
During negative energy balance, the concentration of different fatty acids, especially of oleic acid (OA) increases in the follicular fluid of cattle. Previously, we showed that OA induced morphological, physiological and molecular changes in cultured bovine granulosa cells. In our present study we analyzed effects of OA on the expression of markers for granulosa and Sertoli cell identity, FOXL2 and SOX9, respectively, in addition to effects on the FOXL2 regulated genes ESR2, FST, PTGS2 and PPARG. The results showed that OA down-regulated FOXL2, ESR2, FST and PPARG but up-regulated PTGS2 and SOX9...
July 26, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28747024/clinical-profile-and-outcomes-in-octogenarians-with-atrial-fibrillation-a-community-based-study-in-a-specific-european-health-care-area
#3
Moisés Rodríguez-Mañero, Estrella López-Pardo, Alberto Cordero, Omar Kredieh, María Pereira-Vazquez, Jose-Luis Martínez-Sande, Alvaro Martínez-Gomez, Carlos Peña-Gil, José Novo-Platas, Javier García-Seara, Pilar Mazón, Ricardo Laje, Isabel Moscoso, Alfonso Varela-Román, Jose María García-Acuña, José Ramón González-Juanatey
BACKGROUND: Age increases risk of stroke and bleeding. Clinical trial data have had relatively low proportions of elderly subjects. We sought to study a Spanish population of octogenarians with atrial fibrillation (AF) by combining different sources of electronic clinical records from an area where all medical centres utilized electronic health record systems. METHODS: Data was derived from the Galician Healthcare Service information system. RESULTS: From 383,000 subjects, AF was coded in 7990 (2...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28746812/intra-articular-injection-of-mesenchymal-stem-cells-for-the-treatment-of-osteoarthritis-of-the-knee-a-2-year-follow-up-study
#4
Chris Hyunchul Jo, Jee Won Chai, Eui Cheol Jeong, Sohee Oh, Ji Sun Shin, Hackjoon Shim, Kang Sup Yoon
BACKGROUND: The intra-articular injection of mesenchymal stem cells (MSCs) into the knee has shown a potential for the treatment of generalized cartilage loss in osteoarthritis (OA). However, there have been few midterm reports with clinical and structural outcomes. PURPOSE: To assess the midterm safety and efficacy of an intra-articular injection of autologous adipose tissue-derived (AD) MSCs for knee OA at 2-year follow-up. STUDY DESIGN: Cohort study; Level of evidence, 3...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28746342/the-mechanism-of-monomer-transfer-between-two-structurally-distinct-prp-oligomers
#5
Aurora Armiento, Philippe Moireau, Davy Martin, Nad'a Lepejova, Marie Doumic, Human Rezaei
In mammals, Prion pathology refers to a class of infectious neuropathologies whose mechanism is based on the self-perpetuation of structural information stored in the pathological conformer. The characterisation of the PrP folding landscape has revealed the existence of a plethora of pathways conducing to the formation of structurally different assemblies with different biological properties. However, the biochemical interconnection between these diverse assemblies remains unclear. The PrP oligomerisation process leads to the formation of neurotoxic and soluble assemblies called O1 oligomers with a high size heterodispersity...
2017: PloS One
https://www.readbyqxmd.com/read/28746196/retrospective-review-of-laparoscopic-versus-open-surgery-in-the-treatment-of-appendiceal-abscess-in-pediatric-patients-laparoscopic-versus-open-surgery-for-appendiceal-abscess
#6
Ping Li, Yan Han, Yang Yang, Hongjie Guo, Fabao Hao, Yan Tang, Chunbao Guo
Laparoscopic appendectomy (LA) has become well accepted, but the role of LA for appendicitis upon presentation with an abscess remains undefined. This study was to assess the postoperative recovery and complications following LA in pediatric patients with appendiceal abscess in comparison with open appendectomy (OA).We conducted a retrospective review of patients presented with appendiceal abscess between 2005 and 2016. Propensity score matching (PSM) was conducted to adjust for any potential selection bias for the surgical approaches...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28746190/vasa-mrna-ddx4-detection-is-more-specific-than-immunohistochemistry-using-poly-or-monoclonal-antibodies-for-germ-cells-in-the-male-urogenital-tract
#7
Willem P A Boellaard, Hans Stoop, Ad J M Gillis, J Wolter Oosterhuis, Leendert H J Looijenga
VASA, also known as DDX4, is reported to be specifically expressed in cells belonging to the germ cell lineage, both in males and females. Therefore, it could be an informative protein biomarker to be applied on semen to differentiate between obstructive and nonobstructive azoospermia (OA and NOA, respectively). In addition, it could be of value to predict sperm retrieval based on testicular sperm extraction. Immunocytochemistry of proven OA semen using both polyclonal and monoclonal antibodies against VASA showed positive staining of both cells and cell sized particles...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28746077/disrupted-offset-analgesia-distinguishes-patients-with-chronic-pain-from-healthy-controls
#8
Hiroyuki Kobinata, Eri Ikeda, Shuo Zhang, Tianjiao Li, Koshi Makita, Jiro Kurata
Offset analgesia (OA) represents a disproportionately large decrease of pain perception after a brief, temporary increment of thermal pain stimulus and was reported attenuated in patients with neuropathic pain. We examined whether OA depends on the increment duration before offset, and whether individual features of OA distinguish patients with chronic pain and healthy controls. We used a Peltier-type thermal stimulator and OA paradigms including 5-, 10-, or 15-s duration of 1°C-increment (T2) over 45°C. We first examined OA response, on the left volar forearm, at 3 different T2's in 40 healthy volunteers, and OA and constant stimulus responses in 12 patients with chronic pain and 12 matched healthy controls...
June 21, 2017: Pain
https://www.readbyqxmd.com/read/28745007/better-arthritis-care-what-training-do-community-based-health-professionals-need-to-improve-their-care-of-people-with-arthritis-a-delphi-study
#9
J Erwin, K Edwards, A Woolf, S Whitcombe, S Kilty
OBJECTIVE: The aim of the present study was to identify the competencies that non-specialist community-based nurses and allied health professionals (AHPs) need to enable them to assess, care for and manage arthritis appropriately. METHODS: A Delphi survey with an expert panel of 43 rheumatology specialists and expert patients was used to identify the competencies needed by community-based nurses and AHPs to enable them to improve their care of people with arthritis...
July 26, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/28744817/knockdown-of-prmt1-suppresses-il-1%C3%AE-induced-cartilage-degradation-and-inflammatory-responses-in-human-chondrocytes-through-gli1-mediated-hedgehog-signaling-pathway
#10
Lei Xia, Hong-Xing Zhang, Mei-Li Xing, Yu-Ben Xu, Peng Li, Liang-Ku Huang, Jie Bai, Zhao Tian, Zan-Dong Zhao
Osteoarthritis (OA) is characterized by articular cartilage degradation and joint inflammation. The purpose of the present study is to elucidate the role of the specific function of PRMT1 in chondrocytes and its association with the pathophysiology of OA. We observed that the expression of PRMT1 was apparently upregulated in OA cartilage, as well as in chondrocytes stimulated with IL-1β. Additionally, knockdown of PRMT1 suppressed interleukin 1 beta (IL-1β)-induced extracellular matrix (ECM) metabolic imbalance by regulating the expression of MMP-13, ADAMTS-5, COL2A1, and ACAN...
July 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28744712/vacuolar-protein-sorting-4b-vps4b-regulates-apoptosis-of-chondrocytes-via-p38-mitogen-activated-protein-kinases-mapk-in-osteoarthritis
#11
Libin Xu, Leilei Zhai, Qingtian Ge, Zhongbing Liu, Ran Tao
To aim of this study is to investigate the expression of VPS4B (vacuolar protein sorting 4B) in articular cartilage with osteoarthritis (OA) and to analyze the relationship between VPS4B and chondrocyte apoptosis. We established an OA rat model by the MLI (meniscal/ligamentous injury) modeling method, and we observed the expression of VPS4B in articular cartilage through immunohistochemistry and reverse transcription polymerase chain reaction (RT-PCR). Human SW1353 chondrosarcoma cells were treated with IL-1β to mimic the OA-like chondrocyte injury in vitro, and Western blot was employed to examine the IL-1β-induced expression of VPS4B, phosphorylated p38, and apoptotic markers, namely active caspase-3 and cleaved poly (ADP-ribose) polymerase (PARP)...
July 25, 2017: Inflammation
https://www.readbyqxmd.com/read/28744054/the-effects-of-progressive-neuromuscular-training-on-postural-balance-and-functionality-in-elderly-patients-with-knee-osteoarthritis-a-pilot-study
#12
Sergio Sazo-Rodríguez, Guillermo Méndez-Rebolledo, Eduardo Guzmán-Muñoz, Paulo Rubio-Palma
[Purpose] To determine the effects of progressive neuromuscular training on postural balance and functionality in elderly patients with knee osteoarthritis (OA). [Subjects and Methods] Eleven participants between 60 and 75 years of age performed the progressive neuromuscular training for 8 weeks and 4 weeks of follow-up. The area and velocity of the center of pressure were measured on a force platform, and the functionality was measured with a Western Ontario and McMaster Universities Osteoarthritis Index...
July 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28744016/anti-inflammatory-and-chondroprotective-effects-of-the-s-adenosylhomocysteine-hydrolase-inhibitor-3-deazaneplanocin-a-in-human-articular-chondrocytes
#13
Juliette Aury-Landas, Céline Bazille, Lyess Allas, Sara Bouhout, Christophe Chesneau, Sylvain Leclercq, Karim Boumédiene, Catherine Baugé
3-Deazaneplanocin A (DZNep) is an inhibitor of S-Adenosyl-L-Homocysteine Hydrolase (SAHH) known to inhibit EZH2, a histone methylase upregulated during osteoarthritis. In this study, we assessed its effects in human articular chondrocytes. Anti-inflammatory effects were assessed by Nitric Oxide (NO), Prostaglandin E2 (PGE2) and Metalloprotease (MMP) release in IL-1β-stimulated chondrocytes. MAPK and NFκB activation was analyzed by western blotting. Differentially expressed genes (DEG) regulated by DZNep were identified by whole-transcriptome microarray...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743830/role-of-melatonin-combined-with-exercise-as-a-switch-like-regulator-for-circadian-behavior-in-advanced-osteoarthritic-knee
#14
Yunkyung Hong, Hyunsoo Kim, Seunghoon Lee, Yunho Jin, Jeonghyun Choi, Sang-Rae Lee, Kyu-Tae Chang, Yonggeun Hong
Here, we show the role of melatonin combined with or without exercise as a determinant of multicellular behavior in osteoarthritis. We address the relationship between the molecular components governing local circadian clock and changes in the osteoarthritic musculoskeletal axis. Melatonin was injected subcutaneously in animals with advanced knee osteoarthritis (OA) for 4 weeks. Concurrently, moderate treadmill exercise was applied for 30 min/day. Morphometric, histological, and gene/protein-level analyses were performed in the cartilage, synovium, bone, and gastrocnemius muscle...
July 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28743608/quantitative-regional-and-sub-regional-analysis-of-femoral-and-tibial-subchondral-bone-mineral-density-using-computed-tomography-comparison-of-non-osteoarthritic-and-severe-osteoarthritic-knees
#15
Patrick OmouSmi, Hugo Babel, Brigitte M Jolles, Julien Favre
OBJECTIVE: This study aimed to compare subchondral bone mineral density (sBMD) between non-radiographic osteoarthritic (OA) and medial femorotibal OA knees, using CT. DESIGN: CT exams from 16 non-radiographic OA (KL grade<2) and 16 severe medial OA (KL grade≥3) knees (average age of 61.7±3 and 62.2±5 years old respectively, 50% male in each group), were retrospectively analyzed. CT exams were segmented and 3D maps of sBMD based on the CT number in the most superficial 3mm of femoral and tibial subchondral bone were computed...
July 22, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28742830/regulatory-effects-of-zinc-on-cadmium-induced-cytotoxicity-in-chronic-inflammation
#16
Paola Bonaventura, Aline Lamboux, Francis Albarède, Pierre Miossec
OBJECTIVES: Zinc (Zn) has major effects on immune system activation while Cadmium (Cd) has anti-inflammatory and anti-proliferative effects in several chronic inflammatory contexts. The aim of this work was to investigate by which mechanisms Zn could compete with Cd and eventually counteract its deleterious effects. Rheumatoid arthritis (RA) synoviocytes exposed to cytokines were used as a model of chronic inflammation; osteoarthritis (OA) synoviocytes were used as control. METHODS: Cell/medium fractionation constants were analyzed for different metals by inductively-coupled-plasma mass-spectrometry by comparison to the 70Zn spike...
2017: PloS One
https://www.readbyqxmd.com/read/28741742/dental-and-skeletal-maturation-in-female-adolescents-with-temporomandibular-joint-osteoarthritis
#17
Jeong-Hyun Kang, Ill-Hyung Yang, Hong-Keun Hyun, Jeong-Yun Lee
BACKGROUND: Occurrence of temporomandibular disorders (TMDs) and temporomandibular joint (TMJ) osteoarthritis (OA) during adolescence may have interactions with mandibular and dental development. OBJECTIVE: To investigate relationships between occurrence of TMD and TMJ OA and extents of dental and skeletal development in juvenile female patients. METHOD: In total, 95 female adolescents (age range, 11-15 years) were selected. Among them, 15 subjects (control) had no signs of TMD, 39 TMD patients did not have OA (TMDnoOA), 17 TMD patients were at initial stage of TMJ OA (TMJOA), and 27 patients showed progressive stage of TMJ OA (TMJOA)...
July 25, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28739300/the-critical-shoulder-angle-is-associated-with-osteoarthritis-in-the-shoulder-but-not-rotator-cuff-tears-a-retrospective-case-control-study
#18
Arnar O Bjarnison, Thomas J Sørensen, Thomas Kallemose, Kristoffer W Barfod
BACKGROUND: In 2013 Moor et al introduced the concept of the critical shoulder angle (CSA) and suggested that an abnormal CSA was a leading factor in development of rotator cuff tear (RCT) and osteoarthritis (OA) of the shoulder. This study assessed whether the CSA was associated with RCT and OA and tested the inter- and intrarater reliability of the CSA when measuring RCT and OA. MATERIALS AND METHODS: The study was performed as a retrospective case-control study...
July 21, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28739110/transforming-growth-factor-beta1-being-considered-a-novel-biomarker-in-knee-osteoarthritis
#19
Jianwei He, Weiwei Cao, Inayat Azeem, Qiang Zhao, Zengwu Shao
BACKGROUND: Associations between Transforming Growth Factor beta-1 (TGF-β1), Platelet-derived growth factor BB (PDGF-BB) and C-terminal telopeptide of type I collagen (CTX-1) with pathogenesis of osteoarthritis (OA) have already been established. Therefore, TGF-β1, PDGF-BB and CTX-1 could be used as the potential biomarkers for the diagnosis of this disease. METHODS: 160 knee OA cases and 80 healthy controls were chosen. Serum concentrations of TGF-β1, PDGF-BB and CTX-1 were tested twice on the same samples using Enzyme-Linked Immunosorbent Assay...
July 21, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28738541/research-progress-on-osteoarthritis-treatment-mechanisms
#20
REVIEW
Yun-Yao Gu, Jian Chen, Zhu-Long Meng, Wan-Yu Ge, Yang-Yang Bian, Shao-Wen Cheng, Chen-Kun Xing, Jiang-Ling Yao, Jian Fu, Lei Peng
Osteoarthritis is a common disease and is frequently encountered in the older population; the incidence rises sharply with age. It is estimated that more than 360 million people suffer from OA. However, the pathogenesis of osteoarthritis remains unclear, and we cannot effectively prevent the progression of OA. The aim of this review was to explore the molecular markers and signaling pathways that induce chondrocyte apoptosis in OA. We searched, using the key words osteoarthritis, chondrocyte apoptosis, autophagy, endoplasmic reticulum stress, molecular targets, and biomarkers, in PubMed, Web of Science, and Google Scholar from 1994 to 2017...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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