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International Journal of Medical Sciences

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https://www.readbyqxmd.com/read/28367090/high-quality-in-vitro-expansion-of-human-endothelial-progenitor-cells-of-human-umbilical-vein-origin
#1
Yan Mou, Zhen Yue, Haiying Zhang, Xu Shi, Mingrui Zhang, Xiaona Chang, Hang Gao, Ronggui Li, Zonggui Wang
The limited availability of qualified endothelial progenitor cells (EPCs) is a major challenge for regenerative medicine. In the present study, we isolated human EPCs from human umbilical vein endothelial cells (HUVECs) by using magnetic micro-beads coated with an antibody against human CD34. Flow cytometric assay showed that majority of these cells expressed VEGFR2 (KDR), CD34 and CD133, three molecular markers for early EPCs. It was also found that a bioreactor micro-carrier cell culture system (bio-MCCS) was superior to dish culture for in vitro expansion of EPCs...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367089/upregulation-of-heat-shock-protein-70-and-the-differential-protein-expression-induced-by-tumor-necrosis-factor-alpha-enhances-migration-and-inhibits-apoptosis-of-hepatocellular-carcinoma-cell-hepg2
#2
Bee-Piao Huang, Chun-Shiang Lin, Chau-Jong Wang, Shao-Hsuan Kao
Tumor necrosis factor alpha (TNFα) plays diverse roles in liver damage and hepatocarcinogenesis with its multipotent bioactivity. However, the influence of TNFα on protein expression of hepatocellular carcinoma (HCC) is incompletely understood. Therefore, we aimed to investigate the differential protein expression of HCC in response to TNFα stimulus. We observed that HepG2 cell revealed a higher resistance to TNFα-induced apoptosis as compared to the non-tumorigenic hepatocyte THLE-2. By using a label-free quantitative proteomic analysis, we found that 520 proteins were differentially expressed in the HepG2 cells exposed to TNFα, including 211 up-regulated and 309 down-regulated proteins...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367088/regulation-of-dmt1-on-autophagy-and-apoptosis-in-osteoblast
#3
Fei Liu, Wei-Lin Zhang, Hong-Zheng Meng, Zheng-Yu Cai, Mao-Wei Yang
Iron overload has recently been associated with the changes in the bone microstructure that occur in osteoporosis. However, the effect of iron overload on osteoblasts is unclear. The purpose of this study was to explore the function of divalent metal transporter 1 (DMT1) in the pathological processes of osteoporosis. Osteoblast hFOB1.19 cells were cultured in medium supplemented with different concentrations (0, 50, 100, 200, 300, 400, 500 μmol/L) of ferric ammonium citrate (FAC) as a donor of ferric ions...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367087/expression-of-sterol-regulatory-element-binding-proteins-in-epicardial-adipose-tissue-in-patients-with-coronary-artery-disease-and-diabetes-mellitus-preliminary-study
#4
Luis M Pérez-Belmonte, Inmaculada Moreno-Santos, Fernando Cabrera-Bueno, Gemma Sánchez-Espín, Daniel Castellano, Miguel Such, María G Crespo-Leiro, Fernando Carrasco-Chinchilla, Luis Alonso-Pulpón, Miguel López-Garrido, Amalio Ruiz-Salas, Víctor M Becerra-Muñoz, Juan J Gómez-Doblas, Eduardo de Teresa-Galván, Manuel Jiménez-Navarro
Objectives: Sterol regulatory element-binding proteins (SREBP) genes are crucial in lipid biosynthesis and cardiovascular homeostasis. Their expression in epicardial adipose tissue (EAT) and their influence in the development of coronary artery disease (CAD) and type-2 diabetes mellitus remain to be determined. The aim of our study was to evaluate the expression of SREBP genes in EAT in patients with CAD according to diabetes status and its association with clinical and biochemical data. Methods: SREBP-1 and SREBP-2 mRNA expression levels were measured in EAT from 49 patients with CAD (26 with diabetes) and 23 controls without CAD or diabetes...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367086/characterization-of-the-serum-and-liver-proteomes-in-gut-microbiota-lacking-mice
#5
Yu-Tang Tung, Ying-Ju Chen, Hsiao-Li Chuang, Wen-Ching Huang, Chun-Tsung Lo, Chen-Chung Liao, Chi-Chang Huang
Current nutrition research is focusing on health promotion, disease prevention, and performance improvement for individuals and communities around the world. The humans with required nutritional ingredients depend on both how well the individual is provided with balanced foods and what state of gut microbiota the host has. Studying the mutually beneficial relationships between gut microbiome and host is an increasing attention in biomedical science. The purpose of this study is to understand the role of gut microbiota and to study interactions between gut microbiota and host...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367085/functional-analysis-of-a-nonsyndromic-hearing-loss-associated-mutation-in-the-transmembrane-ii-domain-of-the-gjc3-gene
#6
Swee-Hee Wong, Wen-Hung Wang, Pin-Hua Chen, Shuan-Yow Li, Jiann-Jou Yang
In a previous study, we identified a novel missense mutation, p.W77S, in the GJC3 gene encoding connexin30.2/connexin31.3 (CX30.2/CX31.3) from patients with hearing loss. The functional alteration of CX30.2/CX31.3 caused by the p.W77S mutant of GJC3 gene, however, remains unclear. In the current study, our result indicated that the p.W77 is localized at the second membrane-spanning segments (TM2) and near border of the E1 domain of the CX30.2/CX31.3 protein and highly conserved (Conseq score = 8~9) in all species...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367084/interrelationship-between-insulin-resistance-and-portal-haemodynamic-abnormality-in-cirrhosis
#7
Hitoshi Maruyama, Kazufumi Kobayashi, Soichiro Kiyono, Osamu Yokosuka
Background: There are only limited data regarding the effect of impaired portal circulation on the glucose metabolism. The study prospectively examined the interrelationship between insulin resistance (IR) and portal haemodynamic abnormality in cirrhosis. Methods: There were 53 cirrhosis patients (61.6 ± 13.0 years) all presenting gastroesophageal varices. Portal haemodynamics by both hepatic venous catheterisation and Doppler ultrasound were examined with respect to the homeostasis model assessment (HOMA)-IR and HOMA2-IR...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367083/proteomics-analysis-to-identify-and-characterize-the-biomarkers-and-physical-activities-of-non-frail-and-frail-older-adults
#8
Ching-Hung Lin, Chen-Chung Liao, Chi-Huang Huang, Yu-Tang Tung, Huan-Cheng Chang, Mei-Chich Hsu, Chi-Chang Huang
Globally, the proportion of older adults is increasing. Older people face chronic conditions such as sarcopenia and functional decline, which are often associated with disability and frailty. Proteomics assay of potential serum biomarkers of frailty in older adults. Older adults were divided into non-frail and frail groups (n = 6 each; 3 males in each group) in accordance with the Chinese-Canadian Study of Health and Aging Clinical Frailty Scale. Adults were measured for grip power and the 6-min walk test for physical activity, and venous blood was sampled after adults fasted for 8 h...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367082/neuronal-effects-of-sugammadex-in-combination-with-rocuronium-or-vecuronium
#9
Martin Aldasoro, Adrian Jorda, Constanza Aldasoro, Patricia Marchio, Sol Guerra-Ojeda, Marc Gimeno-Raga, Mª Dolores Mauricio, Antonio Iradi, Elena Obrador, Jose Mª Vila, Soraya L Valles
Rocuronium (ROC) and Vecuronium (VEC) are the most currently used steroidal non-depolarizing neuromuscular blocking (MNB) agents. Sugammadex (SUG) rapidly reverses steroidal NMB agents after anaesthesia. The present study was conducted in order to evaluate neuronal effects of SUG alone and in combination with both ROC and VEC. Using MTT, CASP-3 activity and Western-blot we determined the toxicity of SUG, ROC or VEC in neurons in primary culture. SUG induces apoptosis/necrosis in neurons in primary culture and increases cytochrome C (CytC), apoptosis-inducing factor (AIF), Smac/Diablo and Caspase 3 (CASP-3) protein expression...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367081/changes-of-articular-cartilage-and-subchondral-bone-after-extracorporeal-shockwave-therapy-in-osteoarthritis-of-the-knee
#10
Ching-Jen Wang, Jai-Hong Cheng, Wen-Yi Chou, Shan-Ling Hsu, Jen-Hung Chen, Chien-Yiu Huang
We assessed the pathological changes of articular cartilage and subchondral bone on different locations of the knee after extracorporeal shockwave therapy (ESWT) in early osteoarthritis (OA). Rat knees under OA model by anterior cruciate ligament transaction (ACLT) and medial meniscectomy (MM) to induce OA changes. Among ESWT groups, ESWT were applied to medial (M) femur (F) and tibia (T) condyles was better than medial tibia condyle, medial femur condyle as well as medial and lateral (L) tibia condyles in gross osteoarthritic areas (p<0...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367080/prevalence-and-risk-factors-of-comorbidities-among-hypertensive-patients-in-china
#11
Jiaojiao Wang, Jian James Ma, Jiaqi Liu, Daniel Dajun Zeng, Cynthia Song, Zhidong Cao
Hypertension is a severe threat to human being's health due to its association with many comorbidities. Many research works have explored hypertension's prevalence and treatment. However, few considered impact of patient's socioeconomic status and geographical disparities. We intended to fulfill that research gap by analyzing the association of the prevalence of hypertension and three important comorbidities with various socioeconomic and geographical factors. We also investigated the prevalence of those comorbidities if the patient has been diagnosed with hypertension...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28367079/reviewing-primary-sj%C3%A3-gren-s-syndrome-beyond-the-dryness-from-pathophysiology-to-diagnosis-and-treatment
#12
REVIEW
Tim Both, Virgil A S H Dalm, P Martin van Hagen, Paul L A van Daele
Primary Sjögren's syndrome (pSS) is a systemic autoimmune disease, characterized by lymphocytic infiltration of the secretory glands. This process leads to sicca syndrome, which is the combination of dryness of the eyes, oral cavity, pharynx, larynx and/or vagina. Extraglandular manifestations may also be prevalent in patients with pSS, including cutaneous, musculoskeletal, pulmonary, renal, hematological and neurological involvement. The pathogenesis of pSS is currently not well understood, but increased activation of B cells followed by immune complex formation and autoantibody production are thought to play important roles...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260995/immune-cell-repertoire-and-their-mediators-in-patients-with-acute-myocardial-infarction-or-stable-angina-pectoris
#13
Wenwen Yan, Yanli Song, Lin Zhou, Jinfa Jiang, Fang Yang, Qianglin Duan, Lin Che, Yuqin Shen, Haoming Song, Lemin Wang
Background: To evaluate the natural innate and adaptive immunity through gene expression and cytology levels in peripheral blood mononuclear cells in patients with acute myocardial infarction (AMI), stable angina pectoris (SAP) and controls. Methods: 210 patients with AMI, 210 with SAP, and 250 clinical controls were recruited. Whole human genome microarray analysis was performed in 20 randomly chosen subjects per group were examined to detect the expressions of complement markers, natural killer cells, T cells and B cells...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260994/risk-factors-for-intraoperative-massive-transfusion-in-pediatric-liver-transplantation-a-multivariate-analysis
#14
Seok-Joon Jin, Sun-Key Kim, Seong-Soo Choi, Keum Nae Kang, Chang Joon Rhyu, Shin Hwang, Sung-Gyu Lee, Jung-Man Namgoong, Young-Kug Kim
Background: Pediatric liver transplantation (LT) is strongly associated with increased intraoperative blood transfusion requirement and postoperative morbidity and mortality. In the present study, we aimed to assess the risk factors associated with massive transfusion in pediatric LT, and examined the effect of massive transfusion on the postoperative outcomes. Methods: We enrolled pediatric patients who underwent LT between December 1994 and June 2015. Massive transfusion was defined as the administration of red blood cells ≥100% of the total blood volume during LT...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260993/clinical-application-of-a-novel-endoscopic-mask-a-randomized-controlled-trial-in-aged-patients-undergoing-painless-gastroscopy
#15
Guangyu Cai, Zhenling Huang, Tianxiao Zou, Miao He, Shanjuan Wang, Ping Huang, Bin Yu
Background: Desaturation during painless gastroscopy in aged patients leads to discontinuation of the procedure, prolonged manipulation time and increased risk of severe complications. An endoscopic nasal mask was designed to control hypoxia during the above procedures. A randomized trial was performed to test whether the novel endoscopic mask is helpful for hypoxia during painless gastroscopy in aged patients. Methods: In this randomized, controlled trial, 141 aged patients undergoing painless gastroscopy were randomized into nasal catheter group (69 patients) and endoscopic mask group (65 patients)...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260992/risk-factors-associated-with-decreased-renal-function-after-hand-assisted-laparoscopic-donor-nephrectomy-a-multivariate-analysis-of-a-single-surgeon-experience
#16
Jinwook Lim, Yu-Gyeong Kong, Young-Kug Kim, Bumsik Hong
Background: Hand-assisted laparoscopic donor nephrectomy is a minimally invasive procedure for living kidney donation. The surgeon operative volume is associated with postoperative morbidity and mortality. We evaluated the risk factors associated with decreased renal function after hand-assisted laparoscopic donor nephrectomy performed by a single experienced surgeon. Methods: We included living renal donors who underwent hand-assisted laparoscopic donor nephrectomy by a single experienced surgeon between 2006 and 2013...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260991/detection-of-lyme-disease-bacterium-borrelia-burgdorferi-sensu-lato-in-blacklegged-ticks-collected-in-the-grand-river-valley-ontario-canada
#17
John D Scott, Janet E Foley, John F Anderson, Kerry L Clark, Lance A Durden
We document the presence of blacklegged ticks, Ixodes scapularis, in the Grand River valley, Centre Wellington, Ontario. Overall, 15 (36%) of 42 I. scapularis adults collected from 41 mammalian hosts (dogs, cats, humans) were positive for the Lyme disease bacterium, Borrelia burgdorferi sensu lato (s.l.). Using real-time PCR testing and DNA sequencing of the flagellin (fla) gene, we determined that Borrelia amplicons extracted from I. scapularis adults belonged to B. burgdorferi sensu stricto (s.s.), which is pathogenic to humans and certain domestic animals...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260990/dexmedetomidine-inhibits-phenylephrine-induced-contractions-via-alpha-1-adrenoceptor-blockade-and-nitric-oxide-release-in-isolated-rat-aortae
#18
Hyo-Jin Byon, Seong-Ho Ok, Soo Hee Lee, Sebin Kang, Youngil Cho, Jeong Yeol Han, Ju-Tae Sohn
The goal of this in vitro study was to examine the effect of the alpha-2 adrenoceptor agonist dexmedetomidine on phenylephrine (alpha-1 adrenoceptor agonist)-induced contraction in isolated rat aortae and to elucidate the associated cellular mechanisms, with a particular focus on alpha-1 adrenoceptor antagonism. Dexmedetomidine dose-response curves were generated in isolated endothelium-intact and endothelium-denuded rat aortae precontracted with phenylephrine or 5-hydroxytryptamine. Endothelium-denuded aortic rings were pretreated with either dexmedetomidine or the reversible alpha-1 adrenoceptor antagonist phentolamine, followed by post-treatment with the irreversible alpha-1 adrenoceptor blocker phenoxybenzamine...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260989/correlation-of-chitinase-3-like-1-single-nucleotide-polymorphisms-with-hepatocellular-carcinoma-in-taiwan
#19
Wayne Shih-Wei Huang, Hung-Yu Lin, Chao-Bin Yeh, Li-You Chen, Ying-Erh Chou, Shun-Fa Yang, Yu-Fan Liu
Hepatocellular carcinoma (HCC) is the second leading cause of cancer death in Taiwan. Multiple risk factors, such as chronic hepatitis B or C virus infection, carcinogen exposure, cirrhosis, and various single-nucleotide polymorphisms (SNPs), are considered to contribute to hepatocarcinogenesis. Chitinase-3-like protein 1 (CHI3L1), a biomarker implicated in inflammation and tissue remodeling, plays a promoting role in angiogenesis, antiapoptosis, and cell proliferation. This study investigated the role of CHI3L1 SNPs in HCC susceptibility and clinicopathology...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28260988/human-corneal-endothelial-cells-expanded-in-vitro-are-a-powerful-resource-for-tissue-engineering
#20
REVIEW
Yongsong Liu, Hong Sun, Min Hu, Min Zhu, Sean Tighe, Shuangling Chen, Yuan Zhang, Chenwei Su, Subo Cai, Ping Guo
Human corneal endothelial cells have two major functions: barrier function mediated by proteins such as ZO-1 and pump function mediated by Na-K-ATPase which help to maintain visual function. However, human corneal endothelial cells are notorious for their limited proliferative capability in vivo and are therefore prone to corneal endothelial dysfunction that eventually may lead to blindness. At present, the only method to cure corneal endothelial dysfunction is by transplantation of a cadaver donor cornea with normal corneal endothelial cells...
2017: International Journal of Medical Sciences
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