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Medical Science Monitor Basic Research

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https://www.readbyqxmd.com/read/28747619/comparison-of-commercially-available-blood-collection-tubes-containing-sodium-citrate-and-hirudin-in-platelet-aggregation-testing
#1
Walter J Janse van Rensburg, Patricia van der Merwe
BACKGROUND Platelet reactivity assessment is an important tool in both the causal determination of bleeding diathesis as well as in the evaluation of the efficacy of anti-platelet therapy in patients at risk of thrombosis. Sodium citrate is the most widely used anticoagulant for hemostasis investigations. However, some doubt exists over the suitability of sodium citrate in platelet function testing. Hirudin has been suggested as a superior replacement. Nevertheless, only 1 study compared citrated and hirudin treated samples with light transmission aggregometry...
July 27, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28706178/surgery-for-cardiac-papillary-fibroelastoma-a-12-year-single-institution-experience
#2
Sabreen Mkalaluh, Marcin Szczechowicz, Saeed Torabi, Bashar Dib, Anton Sabashnikov, Ahmed Mashhour, Matthias Karck, Alexander Weymann
BACKGROUND We reviewed our clinical experience with cardiac papillary fibroelastoma from 2005 to 2017. The objective of this study was to investigate the clinical and operative data, as well as the early survival rate and immediate postoperative complications. MATERIAL AND METHODS We performed a retrospective analysis of 11 patients (eight males and three females) who underwent resection of cardiac papillary fibroelastoma in our institution. RESULTS Mean age at tumor diagnosis was 60±14 years. The mean dimension of the tumor was 14±11 mm...
July 14, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28652563/vascular-graft-impregnation-with-antibiotics-the-influence-of-high-concentrations-of-rifampin-vancomycin-daptomycin-and-bacteriophage-endolysin-hy-133-on-viability-of-vascular-cells
#3
Monika Herten, Evgeny A Idelevich, Sonja Sielker, Karsten Becker, Anna S Scherzinger, Nani Osada, Giovanni B Torsello, Theodosios Bisdas
BACKGROUND Rifampin-soaked synthetic prosthetic grafts have been widely used for prevention or treatment of vascular graft infections (VGIs). This in vitro study investigated the effect of the antibiotics daptomycin and vancomycin and the new recombinant bacteriophage endolysin HY-133 on vascular cells, as potential alternatives compared to rifampin. MATERIAL AND METHODS Primary human ECs, vascular smooth muscle cells (vSMC), and fibroblasts were cultivated in 96-well plates and incubated with rifampin, daptomycin, vancomycin, and endolysin HY-133 for 24 h...
June 27, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28615615/stat6-upregulation-promotes-m2-macrophage-polarization-to-suppress-atherosclerosis
#4
Min Gong, Xiaozhen Zhuo, Aiqun Ma
BACKGROUND Macrophages are highly heterogeneous and plastic cells that are involved in all stages of atherogenesis. They can undergo polarization by shifting between M1 and M2 functional phenotypes. However, the role of macrophage polarization and the molecular mechanism in modulating atherosclerotic plaque stability remain incompletely understood. Our study investigated the role of STAT6 in regulating macrophage phenotypes to affect atherosclerotic plaque stability. MATERIAL AND METHODS A murine atherosclerosis model with vulnerable plaques was induced with high-cholesterol diet and PCCP surgeries in ApoE-/- mice...
June 15, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28579604/association-of-dopamine-d1-and-d3-receptor-gene-polymorphisms-with-essential-hypertension-in-3-ethnic-groups-in-china
#5
Hongju Yang, Lianmei Zhong, Song Bai, YiLong Dong, Yanmei Wang, Qian Li, Qiuping Yang, Dejun Jiang, Hongyan Bi, Chunjie Xiao, Bingron Zheng
Background Material and Methods Results Conclusions.
June 5, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28522796/effects-of-%C3%AE-adrenoceptor-and-catechol-o-methyl-transferase-comt-polymorphism-on-postoperative-outcome-in-cardiac-surgery-patients
#6
Stefan Dhein, Pascal M Dohmen, Matthias Sauer, Julia Tews, Johannes Weickmann, Anne-Kathrin Funkat, Martin Misfeld, Michael A Borger, Friedrich W Mohr
BACKGROUND There is a long-standing debate about the role of beta-adrenoceptor polymorphisms in the cardiovascular system. We wanted to elucidate whether β1-adrenoceptor-polymorphisms affects the postoperative catecholamine consumption and the length of intermediate care unit stay in patients undergoing cardiac surgery, and whether this might be enhanced or attenuated by catechol-O-methyl-transferase (COMT) polymorphism. MATERIAL AND METHODS We included 116 patients (63±1.2 years; 34% females; 81±1 kg) undergoing cardiac surgery...
May 19, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28496093/prediction-of-new-onset-and-recurrent-atrial-fibrillation-by-complete-blood-count-tests-a-comprehensive-systematic-review-with-meta-analysis
#7
Alexander Weymann, Sadeq Ali-Hasan-Al-Saegh, Anton Sabashnikov, Aron-Frederik Popov, Seyed Jalil Mirhosseini, Tong Liu, Mohammadreza Lotfaliani, Michel Pompeu Barros de Oliveira Sá, William L L Baker, Senol Yavuz, Mohamed Zeriouh, Jae-Sik Jang, Hamidreza Dehghan, Lei Meng, Luca Testa, Fabrizio D'Ascenzo, Umberto Benedetto, Gary Tse, Luis Nombela-Franco, Pascal M Dohmen, Abhishek J Deshmukh, Cecilia Linde, Giuseppe Biondi-Zoccai, Gregg W Stone, Hugh Calkins, Integrated Meta-Analysis Of Cardiac Surgery And Cardiology-Group Imcsc-Group
BACKGROUND Atrial fibrillation (AF) is one of the most critical and frequent arrhythmias precipitating morbidities and mortalities. The complete blood count (CBC) test is an important blood test in clinical practice and is routinely used in the workup of cardiovascular diseases. This systematic review with meta-analysis aimed to determine the strength of evidence for evaluating the association of hematological parameters in the CBC test with new-onset and recurrent AF. MATERIAL AND METHODS We conducted a meta-analysis of observational studies evaluating hematologic parameters in patients with new-onset AF and recurrent AF...
May 12, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28473687/poor-physical-performance-is-associated-with-obesity-among-university-students-in-china
#8
Tianhua Du, Ergang Zhu, Suhua Jiao
BACKGROUND The aim of this study was to explore the relationship between physical performance and BMI (body mass index) of university students in China. MATERIAL AND METHODS We conducted a cross-sectional study evaluating the physical performance and BMI of university students. BMI was calculated based on height and weight. Overweight and obesity were defined by the Working Group on Obesity references in China. RESULTS A total of 2313 participants (978 males and 1335 females) were recruited in our study. The mean value of the 50-meter dash and standing long jump in male students was higher than in female students (P<0...
May 5, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28450696/alginate-particles-with-ovalbumin-ova-peptide-can-serve-as-a-carrier-and-adjuvant-for-immune-therapy-in-b16-ova-cancer-model
#9
Longbao Zhu, Fei Ge, Liangjun Yang, Wanzhen Li, Shenghua Wei, Yugui Tao, Guocheng Du
BACKGROUND Alginate is a natural polysaccharide obtained from brown algae and has been shown to have numerous applications in biomedical science, such as wound healing, delivery of bioactive agents, and cell transplantation. Ovalbumin (OVA) peptide 323-339 has been reported to be involved in immune response.  MATERIAL AND METHODS This work investigated the use of alginate particles as a carrier and adjuvant for the immune therapy of cancer. Alginate particles loaded with OVA peptide were produced via emulsion...
April 28, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28428533/protective-effect-of-tempol-against-hypoxia-induced-oxidative-stress-and-apoptosis-in-h9c2-cells
#10
Linlin Jing, Qian Li, Lei He, Wei Sun, Zhengping Jia, Huiping Ma
Background Material and Methods Results Conclusions.
April 21, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28408733/high-performance-liquid-chromatography-hplc-quantification-of-liposome-delivered-doxorubicin-in-arthritic-joints-of-collagen-induced-arthritis-rats
#11
Hongqing Niu, Menghua Xu, Shuangtian Li, Junwei Chen, Jing Luo, Xiangcong Zhao, Chong Gao, Xiaofeng Li
BACKGROUND Neoangiogenesis occurring in inflamed articular synovium in early rheumatoid arthritis (RA) is characterized by enhanced vascular permeability that allows nanoparticle agents, including liposomes, to deliver encapsulated drugs to arthritic joints and subsequently improve therapeutic efficacy and reduce adverse effects. However, the targeting distribution of liposomes in arthritic joints during RA has not been quantitatively demonstrated. We performed this study to evaluate the targeting distribution of PEGylated doxorubicin liposomes in the arthritic joints of collagen-induced arthritis (CIA) rats by high-performance liquid chromatography (HPLC)...
April 14, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28386055/tnf-alpha-promotes-invasion-and-metastasis-via-nf-kappa-b-pathway-in-oral-squamous-cell-carcinoma
#12
Daofang Tang, Detao Tao, Yuan Fang, Chao Deng, Qing Xu, Jingping Zhou
BACKGROUND Recent evidence reveals that the inflammatory microenvironment is associated with tumor migration, invasion, and metastasis. Tumor necrosis factor-α (TNF-α) play a vital role in regulation of the inflammatory process in tumor development. Nuclear factor-kappa B (NF-κB) is one of the key transcription factors which regulate processes in tumor promotion. The aim of this study was to explore the role of NF-κB on the invasion and migration of oral squamous cell carcinoma (OSCC). MATERIAL AND METHODS The IKKβ and p65 mRNA and protein levels were determined by quantitative RT-PCR and western blot...
April 7, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28360407/predictive-role-of-coagulation-fibrinolytic-and-endothelial-markers-in-patients-with-atrial-fibrillation-stroke-and-thromboembolism-a-meta-analysis-meta-regression-and-systematic-review
#13
REVIEW
Alexander Weymann, Anton Sabashnikov, Sadeq Ali-Hasan-Al-Saegh, Aron-Frederik Popov, Seyed Jalil Mirhosseini, William L Baker, Mohammadreza Lotfaliani, Tong Liu, Hamidreza Dehghan, Senol Yavuz, Michel Pompeu Barros de Oliveira Sá, Jae-Sik Jang, Mohamed Zeriouh, Lei Meng, Fabrizio D'Ascenzo, Abhishek J Deshmukh, Guiseppe Biondi-Zoccai, Pascal M Dohmen, Hugh Calkins, Integrated Meta-Analysis Of Cardiac Cardiac Surgery And Cardiology-Group Imcsc-Group
BACKGROUND The pathophysiological mechanism associated with the higher prothrombotic tendency in atrial fibrillation (AF) is complex and multifactorial. However, the role of prothrombotic markers in AF remains inconclusive. MATERIAL AND METHODS We conducted a meta-analysis of observational studies evaluating the association of coagulation activation, fibrinolytic, and endothelial function with occurrence of AF and clinical adverse events. A comprehensive subgroup analysis and meta-regression was performed to explore potential sources of heterogeneity...
March 31, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28336906/identification-and-evaluation-of-new-immunoregulatory-genes-in-mesenchymal-stromal-cells-of-different-origins-comparison-of-normal-and-inflammatory-conditions
#14
COMPARATIVE STUDY
Mohammad Fayyad-Kazan, Mehdi Najar, Hussein Fayyad-Kazan, Gordana Raicevic, Laurence Lagneaux
BACKGROUND Mesenchymal stromal cells (MSCs) possess potent immunomodulatory properties that increase their value as a cell-based therapeutic tool for managing various immune-based disorders. Over the past years, accumulated results from trials using MSCs-based therapy have shown substantial contradictions. Although the reasons underlying these discrepancies are still not completely understood, it is well known that the immunomodulatory activities mediated by distinct MSCs differ in a manner dependent on their tissue origin and adequate response to inflammation priming...
March 24, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28302997/platelets-cellular-and-functional-characteristics-in-patients-with-atrial-fibrillation-a-comprehensive-meta-analysis-and-systematic-review
#15
REVIEW
Alexander Weymann, Sadeq Ali-Hasan-Al-Saegh, Anton Sabashnikov, Aron-Frederik Popov, Seyed Jalil Mirhosseini, Luis Nombela-Franco, Luca Testa, Mohammadreza Lotfaliani, Mohamed Zeriouh, Tong Liu, Hamidreza Dehghan, Senol Yavuz, Michel Pompeu Barros de Oliveira Sá, William L Baker, Jae-Sik Jang, Mengqi Gong, Umberto Benedetto, Pascal M Dohmen, Fabrizio D'Ascenzo, Abhishek J Deshmukh, Giuseppe Biondi-Zoccai, Hugh Calkins, Gregg W Stone, Integrated Meta-Analysis Of Cardiac Surgery And Cardiology-Group Imcsc-Group
BACKGROUND This systematic review with meta-analysis aimed to determine the strength of evidence for evaluating the association of platelet cellular and functional characteristics including platelet count (PC), MPV, platelet distribution width (PDW), platelet factor 4, beta thromboglobulin (BTG), and p-selectin with the occurrence of atrial fibrillation (AF) and consequent stroke. MATERIAL AND METHODS We conducted a meta-analysis of observational studies evaluating platelet characteristics in patients with paroxysmal, persistent and permanent atrial fibrillations...
March 17, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28280257/intermediate-conductance-ca2-activated-k-channel-ikca1-is-upregulated-and-promotes-cell-proliferation-in-cervical-cancer
#16
Ling Liu, Ping Zhan, Dan Nie, Lingye Fan, Hairui Lin, Lanyang Gao, Xiguang Mao
BACKGROUND Accumulating data point to intermediate-conductance calcium-activated potassium channel (IKCa1) as a key player in controlling cell cycle progression and proliferation of human cancer cells. However, the role that IKCa1 plays in the growth of human cervical cancer cells is largely unexplored. MATERIAL AND METHODS In this study, Western blot analysis, immunohistochemical staining, and RT-PCR were first used for IKCa1protein and gene expression assays in cervical cancer tissues and HeLa cells. Then, IKCa1 channel blocker and siRNA were employed to inhibit the functionality of IKCa1 and downregulate gene expression in HeLa cells, respectively...
March 10, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28242866/cross-over-study-comparing-postprandial-glycemic-increase-after-addition-of-a-fixed-dose-mitiglinide-voglibose-combination-or-a-dipeptidyl-peptidase-4-inhibitor-to-basal-insulin-therapy-in-patients-with-type-2-diabetes-mellitus
#17
RANDOMIZED CONTROLLED TRIAL
Noriko Ihana-Sugiyama, Ritsuko Yamamoto-Honda, Takehiro Sugiyama, Tetsuro Tsujimoto, Masafumi Kakei, Mitsuhiko Noda
BACKGROUND Although the efficacy of combination therapy consisting of basal insulin and oral hypoglycemic agents (OHAs) has been shown, which OHAs are the most efficient remains unclear. MATERIAL AND METHODS Five patients with type 2 diabetes were enrolled and treated with insulin degludec and metformin as a basal therapy. The patients were randomized in a cross-over fashion to receive a combination of mitiglinide (10 mg) and voglibose (0.2 mg) (M+V) 3 times daily or linagliptin (5 mg) (L) once daily for 8 weeks...
February 28, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28223681/effect-of-smoking-on-cognitive-functioning-in-young-saudi-adults
#18
Shahid Bashir, Faisal Alghamd, Ahmed Alhussien, Meshal Alohali, Abdullah Alatawi, Tariq Almusned, Syed Shahid Habib
BACKGROUND Smoking is the predominant form of tobacco consumption and is growing worldwide, particularly in the younger generation in the Middle-East. We aimed to determine the effects of tobacco smoking on cognitive functions among young Saudi adults. MATERIAL AND METHODS We recruited a group of cigarette smokers (N=22) and a group of controls (non-smokers) (N=30) from apparently healthy male volunteers aged 18-29 years. Cognitive function was assessed by using the Cambridge Neuropsychological Automated Battery (CANTAB)...
February 22, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28179618/increased-cortisol-and-cortisone-levels-in-overweight-children
#19
Lanling Chu, Kangwei Shen, Ping Liu, Kan Ye, Yu Wang, Chen Li, Xuejun Kang, Yuan Song
BACKGROUND It has been unclear whether relatively high cortisol and cortisone levels are related to overweight in childhood, parental body mass index (BMI), and family dietary habits. The aim of this study was to compare cortisol and cortisone levels in urine and saliva from overweight and normal children, as well as correlations between children's BMI, parental BMI and family dietary behavior questionnaire score (QS). MATERIAL AND METHODS We analyzed the data from 52 overweight children and 53 age- and sex-matched normal-weight children aged 4-5 years...
February 9, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28138124/comparative-analysis-of-renin-angiotensin-system-ras-related-gene-expression-between-hypertensive-and-normotensive-rats
#20
COMPARATIVE STUDY
Chad R Williamson, Sandhya Khurana, Phong Nguyen, Collin J Byrne, T C Tai
BACKGROUND The renal renin-angiotensin system (RAS) is physiologically important for blood pressure regulation. Altered regulation of RAS-related genes has been observed in an animal model of hypertension (spontaneously hypertensive rats - SHRs). The current understanding of certain RAS-related gene expression differences between Wistar-Kyoto rats (WKYs) and SHRs is either limited or has not been compared. The purpose of this study was to compare the regulation of key RAS-related genes in the kidneys of adult WKYs and SHRs...
January 31, 2017: Medical Science Monitor Basic Research
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