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Metabolic OA

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https://www.readbyqxmd.com/read/28338883/the-effects-of-oleanolic-acid-on-atherosclerosis-in-different-animal-models
#1
Hanqiong Luo, Jine Liu, Qiong Ouyang, Chunxiao Xuan, Lanlan Wang, Tingting Li, Jun Liu
In the present study, three animal models, including C57BL/6J mice, low-density lipoprotein receptor knockout (LDLR-/-) mice, and rabbit that mimicked atherosclerosis, were established to investigate the inhibitory effect of oleanolic acid (OA) on atherosclerosis. In rabbit model, serum total cholesterol (TC), triglyceride, low density lipoprotein cholesterol (LDL-C), and high density lipoprotein cholesterol (HDL-C) were measured. Carotid artery lesions were isolated for histological analysis. The red oil O and hematoxylin-eosin staining in liver were examined...
March 4, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28336453/a-bioinformatic-analysis-of-micrornas-role-in-osteoarthritis
#2
Lin Cong, Yue Zhu, Guanjun Tu
OBJECTIVE: To evaluate the underlying function of miRNAs in osteoarthritis (OA). DESIGN: A bioinformatic analysis of miRNAs-OA studies was completed in multiple databases. All identified articles were assessed using specific inclusion and exclusion criteria (Eligible case-control studies for the present study included those which investigated miRNAs differential expression in cartilage tissues and cells of OA and controls. Abstracts, case reports, conference presentations, editorials, and expert opinions were excluded...
March 21, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28323217/effects-of-algal-toxin-okadaic-acid-on-the-non-specific-immune-and-antioxidant-response-of-bay-scallop-argopecten-irradians
#3
Cheng Chi, Sib Sankar Giri, Jin Woo Jun, Hyoun Joong Kim, Sang Wha Kim, Saekil Yun, Se Chang Park
Okadaic acid (OA) is produced by dinoflagellates during harmful algal blooms and is a diarrhetic shellfish-poisoning (DSP) toxin. This toxin is particularly problematic for bivalves that are cultured for human consumption. This study aimed to reveal the effects of exposure to OA on the non-specific immune responses of bay scallop, Argopecten irradians. Various immunological parameters (superoxide dismutase (SOD), acid phosphatase (ACP), alkaline phosphatase (ALP), lysozyme activities, and total protein level) were assessed in the hemolymph of bay scallops at 3, 6, 12, 24, and 48 h post-exposure (hpe) to different concentrations (50, 100, and 500 nM) of OA...
March 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28314754/kdm6b-regulates-cartilage-development-and-homeostasis-through-anabolic-metabolism
#4
Jun Dai, Dongsheng Yu, Yafei Wang, Yishan Chen, Heng Sun, Xiaolei Zhang, Shouan Zhu, Zongyou Pan, Boon Chin Heng, Shufang Zhang, Hongwei Ouyang
OBJECTIVES: Epigenetic mechanisms have been reported to play key roles in chondrogenesis and osteoarthritis (OA) development. Here, we sought to identify specific histone demethylases that are involved and delineate the underlying mechanisms. METHODS: We screened the expression of 17 distinct histone demethylases by quantitative real time PCR (qRT-PCR) during chondrogenic differentiation of C3H10T1/2 cells. The role of Kdm6b in cartilage development was then analysed with transgenic Col2a1-CreER(T2);Kdm6b(f/f) ...
March 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28296592/ethanol-extract-of-capsella-bursa-pastoris-improves-hepatic-steatosis-through-inhibition-of-histone-acetyltransferase-activity
#5
Hyo-Kyoung Choi, Eun Ju Shin, Su Jin Park, Haeng Jeon Hur, Jae Ho Park, Min-Yu Chung, Myung Sunny Kim, Jin-Taek Hwang
Histone lysine acetylation is thought to play a role in regulating the balance between energy storage and energy expenditure. However, the epigenetic mechanisms by which food phytochemicals influence metabolic processes in the liver have not been thoroughly investigated. In this study, we investigated the effect of an ethanol extract of Capsella bursa-pastoris (ECB) on histone acetyltransferase (HAT) inhibition, and whether it could thereby attenuate lipid accumulation in vitro and in vivo. We observed that ECB inhibits HAT activity as assessed by colorimetric and autoradiography assay systems...
March 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28294445/the-challenge-of-nutritional-profiling-of-a-protein-free-feed-module-for-children-on-low-protein-tube-feeds-with-organic-acidaemias
#6
A Daly, S Evans, C Ashmore, S Chahal, S Santra, A MacDonald
BACKGROUND: Enteral tube feeding for children with organic acidaemias (OA) is recommended. Protein restriction, providing minimum safe levels of protein intake, is advocated. Standard paediatric tube feeding formulae provide more than the minimum safe protein requirements and are unsuitable in OA without modification. Modified paediatric enteral feeds consist of several modular ingredients. The aim of this prospective longitudinal interventional study was to assess the efficacy of a premeasured novel protein-free module developed for children aged over 12 months compared to conventional practice...
March 10, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28287489/review-of-prospects-of-biological-fluid-biomarkers-in-osteoarthritis
#7
REVIEW
Lich Thi Nguyen, Ashish Ranjan Sharma, Chiranjib Chakraborty, Balaji Saibaba, Moo-Eob Ahn, Sang-Soo Lee
Osteoarthritis (OA) is a degenerative disease of the joints and is one of the leading causes of disability in adults. However, there are no key therapeutics for OA and medical treatment is based on managing the symptoms and slowing down progression of the disease. Diagnostics based on clinical examination and radiography have provided little information about metabolic changes in joint tissues, disease onset and progression. Due to lack of effective methods for early detection and evaluation of treatment outcome, the measurement of biochemical markers (biomarkers) shows promise as a prospective method aiding in disease monitoring...
March 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28275825/co-expression-of-dkk-1-and-sclerostin-in-subchondral-bone-of-the-proximal-femoral-heads-from-osteoarthritic-hips
#8
Allahdad Zarei, Philippa A Hulley, Afsie Sabokbar, M Kassim Javaid
BACKGROUND: Osteoarthritis (OA) is a progressively degenerative joint disease influenced by structural and metabolic factors. There is growing evidence that subchondral bone is involved in both symptomatic and structural progression in OA. The Wnt pathway has been implicated in the progression of OA but the expression and function of the Wnt inhibitors, Dikkopf (DKK-1) and sclerostin (SOST), are unclear. METHODS: We examined the regional distribution of DKK-1 and SOST in subchondral bone of the femoral head using resection specimens following arthroplasty in patients presenting with end-stage OA...
March 9, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28267901/-weighing-in-on-framingham-oa-measuring-biomechanical-and-metabolic-contributions-to-osteoarthritis
#9
EDITORIAL
C Thomas Appleton, Gillian A Hawker, Catherine L Hill, Janet E Pope
No abstract text is available yet for this article.
March 7, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28257604/the-metabolic-syndrome-its-components-and-knee-osteoarthritis-oa-the-framingham-oa-study
#10
Jingbo Niu, Margaret Clancy, Piran Aliabadi, Vasan Ramachandran, David T Felson
OBJECTIVES: Studies have suggested that Metabolic Syndrome (MetS) is associated with osteoarthritis (OA). However, analyses have often not adjusted for BMI and have not explored whether levels of individual MetS components are related to OA. METHODS: Framingham Study subjects were assessed for OA in 1992-95 and again in 2002-05. Near the baseline visit, subjects had components of the MetS assessed. We defined incident radiographic OA (ROA) as present when a knee without ROA developed Kellgren and Lawrence grade ≥2 at follow-up and defined incident symptomatic OA (SxOA) as present when a knee developed the new combination of ROA and knee pain...
March 3, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28255111/-sirtuin-type-1-signaling-pathway-mediates-the-effect-of-diosgenin-on-chondrocyte-metabolisms-in-osteoarthritis
#11
Jun Liu, Xiaole He, Ping Zhen, Hui Chen, Shenghu Zhou, Qi Tian, Rong Wang, Xusheng Li
To observe the effect of sirtuin type 1 (SIRT1) signaling pathway on chondrocyte metabolism and mitochondrial oxidative stress, to explore roles of SIRT1 signaling pathway and diosgenin (Dgn) in pathogenesis of osteoarthritis (OA).
 Methods: To establish C57BL/6 mouse (13.5-18.0 g) model of OA. The chondrocytes were randomly assigned into 4 groups: an OA group, a Dgn+OA group, a Dgn+Sirtinol+OA group, and a Sirtinol+OA group. Expressions of SIRT1, acetylation-regulated transcription factor 1 (Ac-FOXO1), and Bax were detected in the 4 groups by Western blot...
February 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28250578/oral-administration-of-resveratrol-alleviates-osteoarthritis-pathology-in-c57bl-6j-mice-model-induced-by-a-high-fat-diet
#12
Mengqi Jiang, Xingyao Li, Xiaolu Yu, Xudan Liu, Xiaolei Xu, Jianyi He, Hailun Gu, Li Liu
Obesity has been associated with osteoarthritis (OA) due to increased mass and metabolic factors which are independent of the biomechanical contribution to joint load. Resveratrol, a natural polyphenolic compound, exerts protective effects on OA through its anti-inflammatory property. However, the mechanism of resveratrol on obesity-related OA is unclear. To investigate the effect and possible mechanism of oral resveratrol on obesity-related OA, we fed C57BL/6J mice with a high-fat diet (HFD) for 16 weeks to establish obesity-related OA model; then two doses (22...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28250141/the-effect-of-aging-and-mechanical-loading-on-the-metabolism-of-articular-cartilage
#13
Adam El Mongy Jørgensen, Michael Kjær, Katja Maria Heinemeier
OBJECTIVE: The morphology of articular cartilage (AC) enables painless movement. Aging and mechanical loading are believed to influence development of osteoarthritis (OA), yet the connection remains unclear. METHODS: This narrative review describes the current knowledge regarding this area, with the literature search made on PubMed using appropriate keywords regarding AC, age, and mechanical loading. RESULTS: Following skeletal maturation, chondrocyte numbers decline while increasing senescence occurs...
March 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28247338/development-and-psychometric-evaluation-of-the-metabqol-1-0-a-quality-of-life-questionnaire-for-paediatric-patients-with-intoxication-type-inborn-errors-of-metabolism
#14
Nina A Zeltner, Matthias R Baumgartner, Aljona Bondarenko, Regina Ensenauer, Daniela Karall, Stefan Kölker, Chris Mühlhausen, Sabine Scholl-Bürgi, Eva Thimm, Julia Quitmann, Peter Burgard, Markus A Landolt, Martina Huemer
INTRODUCTION: This study is part of the "European network and registry for intoxication type metabolic diseases" (E-IMD) project. Intoxication-type inborn errors of metabolism (IT-IEM) such as urea cycle disorders (UCD) and organic acidurias (OA) have a major impact on patients' lives. Patients have to adhere to strict diet and medication and may suffer from metabolic crises and neurocognitive impairment. Disease-specific health-related quality of life (HrQoL) assessment questionnaires are the method of choice to estimate the subjective burden of a disease...
March 1, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28243467/coronary-heart-disease-is-associated-with-a-worse-clinical-outcome-of-hand-osteoarthritis-a-cross-sectional-and-longitudinal-study
#15
Alice Courties, Jérémie Sellam, Emmanuel Maheu, Christian Cadet, Yoann Barthe, Fabrice Carrat, Francis Berenbaum
OBJECTIVE: To determine whether cardiometabolic factors are associated with hand osteoarthritis (HOA) symptoms, radiographic severity and progression in a post hoc analysis of the phase III Strontium ranelate Efficacy in Knee OsteoarthrItis triAl (SEKOIA) trial, designed to determine the effect of strontium ranelate on knee osteoarthritis (OA). METHODS: Among the 1683 patients randomised in the SEKOIA study, 869 with radiographic HOA at baseline (rHOA≥2 joints with Kellgren-Lawrence grade ≥2) were included in a cross-sectional analysis...
2017: RMD Open
https://www.readbyqxmd.com/read/28240703/physical-activity-is-related-with-cartilage-quality-in-women-with-knee-osteoarthritis
#16
Matti Munukka, Benjamin Waller, Arja Häkkinen, Miika T Nieminen, Eveliina Lammentausta, Urho M Kujala, Juha Paloneva, Hannu Kautiainen, Ilkka Kiviranta, Ari Heinonen
PURPOSE: To study the relationship between 12-month leisure-time physical activity (LTPA) level and changes in estimated biochemical composition of tibiofemoral cartilage in postmenopausal women with mild knee osteoarthritis (OA). METHODS: Originally 87 volunteer postmenopausal women, aged 60-68 years, with mild knee OA (Kellgren Lawrence I/II and knee pain) participated in a randomised controlled, 4-month aquatic training trial (RCT), after which 76 completed the 12-month post-intervention follow-up period...
February 25, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28239846/inhibition-of-6-phosphofructo-2-kinase-suppresses-fibroblast-like-synoviocytes-mediated-synovial-inflammation-and-joint-destruction-in-rheumatoid-arthritis
#17
Yaoyao Zou, Shan Zeng, Mingcheng Huang, Qian Qiu, Youjun Xiao, Maohua Shi, Zhongping Zhan, Liuqin Liang, Xiuyan Yang, Hanshi Xu
BACKGROUND AND PURPOSE: Abnormal glycolytic metabolism contributes to joint inflammation in rheumatoid arthritis (RA). The aims of this study were to investigate the role of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3), a bifunctional enzyme that controls the glycolytic rate, in regulating fibroblast-like synoviocyte (FLS)-mediated synovial inflammation and invasiveness in RA. EXPERIMENTAL APPROACH: A specific PFKFB3 inhibitor, PFK15, and siRNA were used to evaluate the role of PFKFB3...
February 27, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28238075/physical-activity-and-osteoarthritis-a-consensus-study-to-harmonise-self-reporting-methods-of-physical-activity-across-international-cohorts
#18
L S Gates, K M Leyland, S Sheard, K Jackson, P Kelly, L F Callahan, R Pate, E M Roos, B Ainsworth, C Cooper, C Foster, J L Newton, M E Batt, N K Arden
Physical activity (PA) is increasingly recognised as an important factor within studies of osteoarthritis (OA). However, subjective methods used to assess PA are highly variable and have not been developed for use within studies of OA, which creates difficulties when comparing and interpreting PA data in OA research. The aim of this study was, therefore, to gain expert agreement on the appropriate methods to harmonise PA data among existing population cohorts to enable the investigation of the association of PA and OA...
April 2017: Rheumatology International
https://www.readbyqxmd.com/read/28222923/consumption-of-aquaculture-waste-affects-the-fatty-acid-metabolism-of-a-benthic-invertebrate
#19
Camille A White, Raymond J Bannister, Symon A Dworjanyn, Vivian Husa, Peter D Nichols, Tina Kutti, Tim Dempster
Trophic subsidies can drive widespread ecological change, thus knowledge of how keystone species respond to subsidies is important. Aquaculture of large carnivorous fish generates substantial waste as faeces and lost feed, providing a food source to mobile benthic invertebrates. We used a controlled feeding study combined with a field survey to better understand the interaction between salmon aquaculture and the sea urchin, Echinus acutus, a dominant mobile invertebrate in Norwegian fjords. We tested if diets affected urchin fatty acid composition by feeding them one of three diet treatments ("aquafeed", "composite" and "natural") for 10weeks...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28198181/mineralogical-plasticity-acts-as-a-compensatory-mechanism-to-the-impacts-of-ocean-acidification
#20
Jonathan Y S Leung, Bayden D Russell, Sean D Connell
Calcifying organisms are considered particularly susceptible to the future impacts of ocean acidification (OA), but recent evidence suggests that they may be able to maintain calcification and overall fitness. The underlying mechanism remains unclear but may be attributed to mineralogical plasticity, which modifies the energetic cost of calcification. To test the hypothesis that mineralogical plasticity enables the maintenance of shell growth and functionality under OA conditions, we assessed the biological performance of a gastropod (respiration rate, feeding rate, somatic growth, and shell growth of Austrocochlea constricta) and analyzed its shell mechanical and geochemical properties (shell hardness, elastic modulus, amorphous calcium carbonate, calcite to aragonite ratio, and magnesium to calcium ratio)...
February 15, 2017: Environmental Science & Technology
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