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https://www.readbyqxmd.com/read/28339018/role-of-autophagy-in-the-progression-of-osteoarthritis-the-autophagy-inhibitor-3-methyladenine-aggravates-the-severity-of-experimental-osteoarthritis
#1
Ni-Tao Cheng, Hai Meng, Li-Feng Ma, Liang Zhang, Hao-Miao Yu, Zhen-Zhong Wang, Ai Guo
Accumulating evidence suggests that autophagy is closely related to the pathogenesis of osteoarthritis (OA). The aim of this study was to determine the changes in autophagy during the progression of OA and to elucidate the specific role of autophagy in OA. For this purpose, a cellular model of OA was generated by stimulating SW1353 cells with interleukin (IL)-1β and a rabbit model of OA was also established by an intra-articular injection of collagenase, followed by treatment with the autophagy specific inhibitor, 3-methyladenine (3-MA)...
March 23, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28335824/the-biomechanical-and-histological-effects-of-posterior-cruciate-ligament-rupture-on-the-medial-tibial-plateau
#2
Zhenhan Deng, Yusheng Li, Zhangyuan Lin, Yong Zhu, Ruibo Zhao
BACKGROUND: The objective of this study was to investigate the biomechanical and histological effects of the posterior cruciate ligament (PCL) on the medial tibial plateau. METHODS: A total of 12 cadaveric human knee specimens were collected and grouped as follows: the PCL intact group (n = 12), the anterolateral bundle rupture group (n = 6), the postmedial bundle rupture group (n = 6), and the PCL rupture group (n = 12). The strain on the anterior, middle, and posterior parts of the medial tibial plateau with an axial loading force at different flexion angles was measured and analyzed, respectively...
March 23, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28331811/proteomic-analysis-of-bronchoalveolar-lavage-fluid-balf-from-lung-cancer-patients-using-label-free-mass-spectrometry
#3
Abduladim Hmmier, Michael Emmet O'Brien, Vincent Lynch, Martin Clynes, Ross Morgan, Paul Dowling
BACKGROUND: Lung cancer is the leading cause of cancer-related mortality in both men and women throughout the world. The need to detect lung cancer at an early, potentially curable stage, is essential and may reduce mortality by 20%. The aim of this study was to identify distinct proteomic profiles in bronchoalveolar fluid (BALF) and plasma that are able to discriminate individuals with benign disease from those with non-small cell lung cancer (NSCLC). METHODS: Using label-free mass spectrometry analysis of BALF during discovery-phase analysis, a significant number of proteins were found to have different abundance levels when comparing control to adenocarcinoma (AD) or squamous cell lung carcinoma (SqCC)...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28326469/hsv-1-interaction-to-3-o-sulfated-heparan-sulfate-in-mouse-derived-drg-explant-and-profiles-of-inflammatory-markers-during-virus-infection
#4
Harsh Sharthiya, Chanmoly Seng, T H Van Kuppevelt, Vaibhav Tiwari, Michele Fornaro
The molecular mechanism of herpes simplex virus (HSV) entry and the associated inflammatory response in the nervous system remain poorly understood. Using mouse-derived ex vivo dorsal root ganglia (DRG) explant model and single cell neurons (SCNs), in this study, we provided a visual evidence for the expression of heparan sulfate (HS) and 3-O-sulfated heparan sulfate (3-OS HS) followed by their interactions with HSV-1 glycoprotein B (gB) and glycoprotein D (gD) during cell entry. Upon heparanase treatment of DRG-derived SCN, a significant inhibition of HSV-1 entry was observed suggesting the involvement of HS role during viral entry...
March 21, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28323587/metabolic-syndrome-and-periodontal-disease-among-civilian-pilots
#5
Xi Chen, Lu Xie, Yang Liu, Duanjing Chen, Qing Yu, Xueqi Gan, Haiyang Yu
BACKGROUND: Metabolic syndrome (MetS) is a cluster of metabolic abnormalities that can affect civilian pilots' health. Its prevalence and the correlation with periodontal disease (PD) among pilots had not been previously reported. The aim of the study was to determine MetS and PD status, and to reveal their relationship in a representative sample of Chinese civilian pilots. METHODS: We investigated 303 civilian pilots (mean age 34.92 ± 7.66 yr). General information as well as blood and saliva samples were collected...
December 1, 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28322869/scaffold-free-high-throughput-generation-of-quiescent-valvular-microtissues
#6
Annelies Roosens, Inès Puype, Ria Cornelissen
AIMS: The major challenge of working with valvular interstitial cells in vitro is the preservation or recovery of their native quiescent state. In this study, a biomimetic approach is used which aims to engineer small volume, high quality valve microtissues, having a potential in regenerative medicine and as a relevant 3D in vitro model to provide insights into valve (patho)biology. METHODS AND RESULTS: To form micro-aggregates, porcine valvular interstitial cells were seeded in agarose micro-wells and cultured in medium supplemented with 250μM Ascorbic Acid 2-phosphate for 22days...
March 17, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28320304/cytokine-profile-associated-with-selective-removal-of-natural-anti-%C3%AE-gal-antibodies-in-a-sepsis-model-in-gal-ko-mice
#7
Magdiel Pérez-Cruz, Daniel Bello-Gil, Cristina Costa, Rafael Mañez
Selective depletion of natural anti-Galα1-3Galβ1-4GlcNAc (so-called anti-αGal) antibodies is achieved in α1,3-galactosyltransferase knockout (Gal-KO) mice by administration of the soluble glycoconjugate of αGal GAS914. This molecule removed up to 90% of natural circulating anti-αGal antibodies without causing unspecific production of cytokines in wild-type (CBA) and Gal-KO mice. However, the removal of anti-αGal antibodies in Gal-KO mice with GAS914 in the context of sepsis after cecal ligation and puncture (CLP) was associated with a significant increase in the production of leptin, CXLC1, CXLC13, and TIMP-1 cytokines compared to vehicle (PBS)-treated controls...
February 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28320097/asiatic-acid-ameliorates-pulmonary-fibrosis-induced-by-bleomycin-blm-via-suppressing-pro-fibrotic-and-inflammatory-signaling-pathways
#8
Shu-Hong Dong, Yan-Wei Liu, Feng Wei, Hui-Zhen Tan, Zhi-Dong Han
Idiopathic pulmonary fibrosis is known as a life-threatening disease with high mortality and limited therapeutic strategies. In addition, the molecular mechanism by which pulmonary fibrosis developed is not fully understood. Asiatic acid (AA) is a triterpenoid, isolated from Centella asiatica, exhibiting efficient anti-inflammatory and anti-oxidative activities. In our study, we attempted to explore the effect of Asiatic acid on bleomycin (BLM)-induced pulmonary fibrosis in mice. The findings indicated that pre-treatment with Asiatic acid inhibited BLM-induced lung injury and fibrosis progression in mice...
March 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28317477/circulating-biomarkers-of-collagen-metabolism-and-prognosis-of-heart-failure-with-reduced-or-mid-range-ejection-fraction
#9
Joana Moura Ferreira, Sara Moura Ferreira, Maria João Ferreira, Inês Falcão-Pires
BACKGROUND: Change in the architecture and composition of cardiac extracellular matrix is a key element in adverse cardiac remodeling that occurs during heart failure. Most of the times, the result is the development of fibrosis, which has a huge impact on the pathophysiology and clinical outcomes of heart failure syndromes. Several molecules related to collagen metabolism detectable in the blood have been proposed as biomarkers of myocardial fibrosis. Despite concerns regarding the true ability of these biomarkers to reflect quantitative and qualitative changes in myocardial collagen, a growing body of evidence suggests that they may play a potential role in several aspects of heart failure management...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28314112/can-mesenchymal-stem-cells-pretreated-with-platelet-rich-plasma-modulate-tissue-remodeling-in-a-rat-burn
#10
Hanan Hosni, Laila A Rashed, Soheir Mahfouz, Rania Elsayed Hussein, Marwa Alkaffas, Shaimaa Mostafa, Azza Abusree
AIM: To study the effect of PRP on BM-MSCs proliferation and to investigate their role on healing of experimental burn injury and possible mechanism of action. METHOD: Our work divided into in vitro and in vivo studies. In vitro study included,: MSCs and MSCs treated with PRP. TGF-β level and cell proliferation were assesed. In vivo study, 72 rats divided equally into 6 groups: control, burn, burn with MSCs, burn with PRP, burn with both MSCs and PRP and burn with MSCs pretreated with PRP...
March 17, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28301671/a-clinical-study-of-bone-mesenchymal-stem-cells-for-the-treatment-of-hepatic-fibrosis-induced-by-hepatolenticular-degeneration
#11
D Zhang
The efficacy of bone marrow mesenchymal stem cell (BMSC) on liver fibrosis in animal has been proven, but a few studies have been made in human body and few such researches in China. This study was designed to investigate the effect of BMSC treatment on hepatic fibrosis induced by hepatolenticular degeneration and the influence on serological indicators. Sixty patients with liver fibrosis induced by hepatolenticular degeneration were randomly divided into two groups, a penicillamine group and a BMSCs plus penicillamine group, with 30 patients in each...
March 15, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28301205/intratendon-delivery-of-leukocyte-poor-platelet-rich-plasma-improves-healing-compared-with-leukocyte-rich-platelet-rich-plasma-in-a-rabbit-achilles-tendinopathy-model
#12
Ruijian Yan, Yanjia Gu, Jisheng Ran, Yejun Hu, Zefeng Zheng, Mengfeng Zeng, Boonchin Heng, Xiao Chen, Zi Yin, Weishan Chen, Weiliang Shen, Hongwei Ouyang
BACKGROUND: Chronic tendinopathy is a commonly occurring clinical problem that affects both athletes and inactive middle-aged patients. Although some studies have shown that different platelet-rich plasma (PRP) preparations could exert various therapeutic effects in vitro, the role of leukocytes in PRP has not yet been defined under tendinopathy conditions in vivo. PURPOSE: This study compared the effects of the intratendon delivery of leukocyte-poor PRP (Lp-PRP) versus leukocyte-rich PRP (Lr-PRP) in a rabbit chronic tendinopathy model in vivo...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28299992/developmental-programming
#13
Muraly Puttabyatappa, Ashleigh Irwin, Jacob D Martin, Makeda Mesquitta, Almudena Veiga-Lopez, Vasantha Padmanabhan
Prenatal testosterone (T)-treated sheep, similar to women with polycystic ovary syndrome (PCOS), manifests reproductive defects that include multifollicular ovarian phenotype. Women with PCOS manifest increased ovarian matrix metalloproteinases (MMPs) activity. We tested the hypothesis that gestational T excess in sheep would alter ovarian expression of MMPs, tissue inhibitors of MMP (TIMP) and their target proteins laminin B (LAMB), collagen, tumor necrosis factor alpha (TNF), and connexin 43 (GJA1) consistent with increased MMP activity and that these changes are developmentally regulated...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28299299/effect-of-early-physical-activity-programs-on-motor-performance-and-neuromuscular-development-in-infants-born-preterm-a-randomized-clinical-trial
#14
Leila Valizadeh, Mahnaz Sanaeefar, Mohammad Bager Hosseini, Mohammad Asgari Jafarabadi, Aryan Shamili
Introduction: Although the survival rate of infants born preterm has increased, the prevalence of developmental problems and motor disorders among this population of infants remains the same. This study investigated the effect of physical activity programs in and out of water on motor performance and neuromuscular development of infants born preterm and had induced immobility by mechanical ventilation. Methods: This study was carried out in Al-Zahra hospital, Tabriz. 76 premature infants were randomly assigned into four groups...
March 2017: Journal of Caring Sciences
https://www.readbyqxmd.com/read/28295429/urinary-timp-2-%C3%A2-%C3%A3-%C3%A2-igfbp7-for-risk-prediction-of-acute-kidney-injury-in-decompensated-heart-failure
#15
Moritz Schanz, Jing Shi, Christoph Wasser, Mark Dominik Alscher, Martin Kimmel
BACKGROUND: In acute decompensated heart failure (ADHF) the risk of acute kidney injury (AKI) is high. Early detection of patients at risk for AKI is important. We tested urinary [TIMP-2] × [IGFBP7], a new US Food and Drug Administration-cleared test to assess AKI risk, in a cohort of hospitalized ADHF patients. HYPOTHESIS: In patients with ADHF, urinary [TIMP-2] × [IGFBP7] is associated with moderate to severe AKI and related to increased mortality. METHODS: We enrolled 400 patients in the emergency department at Robert-Bosch Hospital, Stuttgart, Germany...
March 10, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28293015/profile-of-expression-of-genes-encoding-matrix-metallopeptidase-9-mmp9-matrix-metallopeptidase-28-mmp28-and-timp-metallopeptidase-inhibitor-1-timp1-in-colorectal-cancer-assessment-of-the-role-in-diagnosis-and-prognostication
#16
Zbigniew Lorenc, Dariusz Waniczek, Katarzyna Lorenc-Podgórska, Wiktor Krawczyk, Maciej Domagała, Mateusz Majewski, Urszula Mazurek
BACKGROUND Studies on the pathomechanism of colorectal cancer (CRC) expansion indicate a significant role of metalloproteinases and their inhibitors in the extracellular matrix. The results of the analysis of a profile of transcriptional activity of genes encoding metalloproteinases were the basis of the hypothesis indicating changes in the expression of genes encoding MMP9, MMP28, and TIMP1 as an additional diagnostic and prognostic marker of CRC. MATERIAL AND METHODS The material consisted of samples obtained from resected tumors and healthy tissue samples from 15 CRC patients (aged 46-72 years) at clinical stages (CSs) I and II-IV...
March 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28290607/homemade-device-induced-negative-pressure-promotes-wound-healing-more-efficiently-than-vsd-induced-positive-pressure-by-regulating-inflammation-proliferation-and-remodeling
#17
Jinyan Liu, Feng Hu, Jintian Tang, Shijie Tang, Kun Xia, Song Wu, Chaoqi Yin, Shaohua Wang, Quanyong He, Huiqing Xie, Jianda Zhou
Vacuum sealing drainage (VSD) is an effective technique used to promote wound healing. However, recent studies have shown that it exerts positive pressure (PP) rather than negative pressure (NP) on skin. In this study, we created a homemade device that could maintain NP on the wound, and compared the therapeutic effects of VSD-induced PP to those of our homemade device which induced NP on wound healing. The NP induced by our device required less time for wound healing and decreased the wound area more efficiently than the PP induced by VSD...
March 13, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28288890/abdominal-aortic-aneurysm-associated-microrna-516a-5p-regulates-expressions-of-methylenetetrahydrofolate-reductase-matrix-metalloproteinase-2-and-tissue-inhibitor-of-matrix-metalloproteinase-1-in-human-abdominal-aortic-vascular-smooth-muscle-cells
#18
Crystal Yin Tung Chan, Bernice Lai Yee Cheuk, Stephen Wing Keung Cheng
OBJECTIVE: MicroRNAs (miRNAs or miRs) have been highlighted to be involved in abdominal aortic aneurysm (AAA) with the emergence of recent miRNA microarray profiling studies. miR-516a-5p has been shown to be significantly overexpressed in vascular smooth muscle cells (VSMCs) from human AAA tissues from our previous microarray study, suggesting its crucial association with AAA. In addition, further bioinformatics analysis predicted methylenetetrahydrofolate reductase (MTHFR), which regulates homocysteine (Hcy) metabolism and is proposed to be a risk gene for AAA formation, to be the down-regulation target of miR-516a-5p...
March 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28288884/the-profile-of-circulating-matrix-metalloproteinases-in-patients-undergoing-lower-limb-endovascular-interventions-for-peripheral-arterial-disease
#19
Ioakeim T Giagtzidis, Nikolaos P Kadoglou, George Mantas, Aris Spathis, Konstantinos O Papazoglou, Petros Karakitsos, Christos D Liapis, Christos D Karkos
BACKGROUND: Matrix metalloproteinases (MMPs) play a significant role in the development and progression of atherosclerotic vascular disease. We aimed to document the profile of circulating MMPs in peripheral arterial disease (PAD) patients undergoing lower limb endovascular revascularization. METHODS: A total of 46 patients (37 male; mean age 66±11 years) undergoing elective lower limb percutaneous revascularization (angioplasty/stent) for symptomatic PAD were recruited from two vascular centers...
March 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28287265/glycoproteins-in-claudin-low-breast-cancer-cell-lines-have-a-unique-expression-profile
#20
Ten-Yang Yen, Spencer Bowen, Roger Yen, Alexandra Piryatinska, Bruce A Macher, Leslie C Timpe
Claudin proteins are components of epithelial tight junctions; a subtype of breast cancer has been defined by the reduced expression of mRNA for claudins and other genes. Here we characterize the expression of glycoproteins in breast cell lines for the claudin-low subtype using liquid chromatography/tandem mass spectrometry. Unsupervised clustering techniques reveal a group of claudin-low cell lines that is distinct from non-malignant, basal and luminal lines. The claudin-low cell lines express F11R, EPCAM and other proteins at very low levels, while CD44 is expressed at a high level...
March 13, 2017: Journal of Proteome Research
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