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lipoprotein A

Irene Vacca, Elena Del Tordello, Gianmarco Gasperini, Alfredo Pezzicoli, Martina Di Fede, Silvia Rossi Paccani, Sara Marchi, Tsisti D Mubaiwa, Lauren E Hartley-Tassell, Michael P Jennings, Kate L Seib, Vega Masignani, Mariagrazia Pizza, Davide Serruto, Beatrice Aricò, Isabel Delany
Neisserial Heparin Binding Antigen (NHBA) is a surface-exposed lipoprotein ubiquitously expressed by Neisseria meningitidis strains and an antigen of the Bexsero® vaccine. NHBA binds heparin through a conserved Arg-rich region that is the target of two proteases, the meningococcal NalP and human lactoferrin (hLf). In this work, in vitro studies showed that recombinant NHBA protein was able to bind epithelial cells and mutations of the Arg-rich tract abrogated this binding. All N-terminal and C-terminal fragments generated by NalP or hLf cleavage, regardless of the presence or absence of the Arg-rich region, did not bind to cells, indicating that a correct positioning of the Arg-rich region within the full length protein is crucial...
2016: PloS One
Yu Karpov, N Logunova, D Tomilova, V Buza, Yu Khomitskaya
OBJECTIVE: The OPTIMA II study sought to evaluate rates of major adverse cardiac and cerebrovascular events (MACCE) during the long-term follow-up of chronic statin users who underwent percutaneous coronary intervention (PCI) with implantation of a drug-eluting stent (DES). RESEARCH DESIGN AND METHODS: OPTIMA II was a non-interventional, observational study conducted at a single center in the Russian Federation. Included patients were aged ≥18 years with stable angina who had received long-term (≥1 month) statin therapy prior to elective PCI with DES implantation and who had participated in the original OPTIMA study...
October 25, 2016: Current Medical Research and Opinion
Wensi Tao, Robert Moore, Yue Meng, Toni M Yeasky, Elizabeth R Smith, Xiang-Xi Xu
Disabled-2 (Dab2) is a widely expressed clathrin binding endocytic adaptor protein and known for the endocytosis of the low-density lipoprotein (LDL) family receptors. Dab2 also modulates endosomal Ras/MAPK (Erk1/2) activity by regulating the disassembly of Grb2/Sos1 complexes associated with clathrin-coated vesicles. We found that the most prominent phenotype of Dab2 knockout mice was their striking lean body composition under a high fat and high caloric diet, although the weight of the mutant mice was indistinguishable from wild-type littermates on a regular chow...
October 25, 2016: Scientific Reports
Shun-Jin Hu, Bing Shu, Hua Jin, Xiao-Feng Li, Jia-Rong Mao, Ke-Jun Ren, Lei Gao, Li Yang, You-Wan Wu, Yong-Jun Wang
OBJECTIVE: To evaluate the renal protective effect of Tangshenkang Granule () in a rat model of diabetic nephropathy (DN). METHODS: Forty male Sprague-Dawley rats were randomly divided into control, DN, Tangshenkang and benazepril groups. DN model was established in the rats of DN, Tangshenkang and benazepril groups. Tangshenkang Granule solution and benazepril hydrochloride solution were intragastrically administered daily to the rats in the Tangshenkang and benazepril groups for 8 weeks, respectively...
October 24, 2016: Chinese Journal of Integrative Medicine
Shigemasa Tani, Ken Nagao, Tsukasa Yagi, Wataru Atsumi, Atsushi Hirayama
BACKGROUND: We hypothesized that the additional administration of eicosapentaenoic acid (EPA) in patients with stable coronary artery disease (CAD) receiving statin has the potential to lower the serum pentraxin 3 (PTX3) level, an indicator of plaque stabilization. METHODS: We randomly assigned CAD patients already receiving statin therapy to an EPA group (1800 mg/day, n = 53) or control group (n = 53). RESULTS: No significant difference was found in the change in the plasma PTX3 level between the groups...
October 24, 2016: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
Diana Golden, Antonina Kolmakova, Sunitha Sura, Anthony T Vella, Ani Manichaikul, Xin-Qun Wang, Suzette J Bielinski, Kent D Taylor, Yii-Der Ida Chen, Stephen S Rich, Annabelle Rodriguez
BACKGROUND: The lipoprotein scavenger receptor BI (SCARB1) rs10846744 noncoding variant is significantly associated with atherosclerotic disease independently of traditional cardiovascular risk factors. We identified a potentially novel connection between rs10846744, the immune checkpoint inhibitor lymphocyte activation gene 3 (LAG3), and atherosclerosis. METHODS: In vitro approaches included flow cytometry, lipid raft isolation, phosphosignaling, cytokine measurements, and overexpressing and silencing LAG3 protein...
October 20, 2016: JCI Insight
Won Chul Shin, Nam Hoon Moon, Kuen Tak Suh
We report the case of a 25-year-old woman presenting with left hip pain. A lesion was found in the proximal femoral metaphysis. Benign bone tumor, such as intraosseous lipoma or liposclerosing myxofibrous tumor, was suspected based on simple radiographs and magnetic resonance images. Curettage of the lesion and bone grafting was performed. Histologic findings reflected primary intraosseous xanthoma of the proximal femur. Laboratory tests revealed the patient to be normolipidemic, while immunoelectrophoretic fractionation of lipoproteins revealed normal values for alpha, pre-beta, beta, and chylomicrons...
September 2016: Hip Pelvis
Vasanthi Jayakumar, Shiek S S J Ahmed, Kesavarao Kumar Ebenezar
To investigate the effect of curcumin on the multivariate and docking analysis on peroxisome proliferator activated receptor-γ, the rats were fed with high fructose diet (Group 2) to induce insulin resistance and curcumin was co-administered orally (Group 4) for a period of 8 weeks and measured the biochemical parameters in blood, kidney and liver tissues. The results showed a significant (p ≤ 0.05) increase in the level of creatinine, glucose, insulin, low density lipoprotein, total cholesterol, triglyceride, urea, uric acid, very low density lipoprotein and decreased albumin, high density lipoprotein and total protein level in the blood of Group 2 when compared with Group 1 control rats...
2016: SpringerPlus
Ramin Heshmat, Gita Shafiee, Mostafa Qorbani, Fatemeh Azizi-Soleiman, Shirin Djalalinia, Mohammad Esmaeil Motlagh, Gelayol Ardalan, Zeinab Ahadi, Omid Safari, Saeid Safiri, Roya Kelishadi
Introduction: Current evidence suggests that ghrelin could contribute to the development of metabolic syndrome (MetS) in adults, but limited experience exists in adolescents. This study aims to explore the association of ghrelin levels with the MetS components among Iranian adolescents. Methods: In this case-control study, 32 adolescents with MetS and 148 healthy controls were selected randomly from the childhood and Adolescence Surveillance and Prevention of Adult Non communicable disease (CASPIAN-III) study...
2016: Journal of Cardiovascular and Thoracic Research
Zoe Daniel, Angelina Swali, Richard Emes, Simon C Langley-Evans
BACKGROUND: Fetal exposure to a maternal low protein diet during rat pregnancy is associated with hypertension, renal dysfunction and metabolic disturbance in adult life. These effects are present when dietary manipulations target only the first half of pregnancy. It was hypothesised that early gestation protein restriction would impact upon placental gene expression and that this may give clues to the mechanism which links maternal diet to later consequences. METHODS: Pregnant rats were fed control or a low protein diet from conception to day 13 gestation...
2016: Genes & Nutrition
Sae-Rom Yoo, Mee-Young Lee, Byoung-Kab Kang, Hyeun-Kyoo Shin, Soo-Jin Jeong
Soshiho-tang (SST; sho-saiko-to in Japanese; xiaochaihu-tang in Chinese) has generally been used to improve liver fibrosis- and cirrhosis-related symptoms in traditional Korean medicine. Although many studies have investigated the pharmacological properties of SST, its antiobesity effect has not been elucidated. Thus, our present study was carried out to evaluate the antiobesity effect of SST using a high fat diet- (HFD) induced obese mouse model and 3T3-L1 adipose cells. C57BL/6J mice were randomly divided into four groups (n = 6/group), normal diet (ND), HFD-fed group, and HFD- and SST-fed groups (S200: 200 mg/kg of SST; S600: 600 mg/kg of SST) and given HFD with or without SST extract for 8 weeks...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
Ardashel Latsuzbaia, Vincent W V Jaddoe, Albert Hofman, Oscar H Franco, Janine F Felix
Lipid concentrations are heritable traits. Recently, the number of known genetic loci associated with lipid levels in adults increased from 95 to 157. The effects of these 157 loci have not been tested in children. Considering that lipid levels track from childhood to adulthood, we studied whether these variants already affect lipid concentrations in a large group of 2645 children with a median age of 6.0 years (95% range 5.7-7.3) from the population-based Generation R Study. 28 single nucleotide polymorphisms (SNPs) associated with triglycerides (TG), 39 SNPs associated with total cholesterol (TC), 28 SNPs associated with low density lipoprotein cholesterol (LDL-C), and 56 SNPs associated with high density lipoprotein cholesterol (HDL-C) were analyzed individually and combined into genetic risk scores...
October 24, 2016: Journal of Lipid Research
Kausik K Ray, Henry N Ginsberg, Michael H Davidson, Robert Pordy, Laurence Bessac, Pascal Minini, Robert H Eckel, Christopher P Cannon
BACKGROUND: -A continuous relationship between reductions in low-density lipoprotein cholesterol (LDL-C) and major adverse cardiovascular events (MACE) has been observed in statin and ezetimibe outcomes trials, down to achieved levels of 54 mg/dL. However, it is uncertain whether this relationship extends to LDL-C levels <50 mg/dL. We assessed the relationship between additional LDL-C, non-high-density lipoprotein cholesterol (non-HDL-C), and apolipoprotein B100 (apoB) reductions and MACE among patients within the ODYSSEY trials that compared alirocumab versus controls (placebo/ezetimibe), mainly as add on to maximally tolerated statin...
October 24, 2016: Circulation
Shi-Mao Zhong, Yu-Hua Qin, Zuo-Cha Li, Ye-Sheng Wei
OBJECTIVE: To investigate the relationship between atrial fibrillation (AF) and serum soluble CD163. METHODS: A total of 336 patients with heart valve disease were included in this study, including 167 with AF and 169 with sinus rhythm. The clinical data were compared between the two grops, and Logistic regression analysis was used to identify the risk factors associated with AF. RESULTS: The levels of total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), tumor necrosis factor (TNF), interleukin-6 (IL - 6), high-sensitivity C-reactive protein (hs-CRP) and left atrial diameter (LAD) all differed significantly between the two groups (P<0...
October 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Chun-Li Fan, Jia Wu, Xiao-Min Bu, Shu-Jun Wan, Peng-Tao Guo, Yan-Juan Ma, Jun-Jun Wang
OBJECTIVE: To analyze serum levels of non-esterified fatty acids (NEFA) and albumin (ALB) in children with nephrotic syndrome (NS) and investigate the clinical significance of altered serum NEFA to ALB ratio in children with NS in acute and remission phases. METHODS: Serum levels of NEFA and ALB were measured in 55 NS children in acute phase, in 33 NS children in remission and in 122 healthy control children, and the ratio of NEFA to ALB was calculated. The other lipid/lipoprotein and renal function parameters were also analyzed in these children...
October 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Jing Hu, Dan Xi, Jinzhen Zhao, Tiantian Luo, Jichen Liu, Hao Lu, Menghao Li, Haowei Xiong, Zhigang Guo
Great advances are being made in the understanding of the structural and functional diversity of high-density lipoprotein at the mechanistic level. High-density lipoprotein possesses numerous physiological activities, the most studied of which is the ability to promote excess cholesterol efflux from peripheral tissues to the liver for excretion via a mechanism believed to confer protection against atherosclerosis. Accumulating evidence has demonstrated that atherosclerosis is a chronic inflammatory response...
October 2016: American Journal of the Medical Sciences
Mehrnaz Riazian, Elnaz Khorrami, Elham Alipoor, Sina Moradmand, Mehdi Yaseri, Mohammad Javad Hosseinzadeh-Attar
BACKGROUND: Apelin, the endogenous ligand of orphan receptor APJ (gene symbol APLNR), is an adipokine that was suggested to have a direct correlation with obesity. This peptide might play a role in obesity-related disorders, especially in the cardiovascular system. Currently, few data are available on levels and potential metabolic functions of apelin in different cardiac diseases including atrial fibrillation (AF) and coronary artery disease (CAD), which have common underlying pathophysiological mechanisms...
October 2016: American Journal of the Medical Sciences
Yan Wang, Shan-Shan Li, Shi-Ping Na, Cheng-Yuan Yu, Ying Ji, Shi-Lei Zhao, Ru-Juan Xie, Yu-Shi Bao
BACKGROUND: This study aims to test the lipoprotein-associated phospholipase A2 (Lp-PLA2) mass and activity in patients with chronic kidney disease (CKD) and to analyze their connection of Lp-PLA2 with the development of disease and with the occurrence of atherosclerosis in this population. MATERIALS AND METHODS: In total, 59 patients older than 18 years and with a diagnosis of CKD were recruited. Kidney function was evaluated by serum creatinine, serum urea and estimated glomerular filtration rate according to Chronic Kidney Disease Epidemiology Collaboration formula and clinical data were collected...
October 2016: American Journal of the Medical Sciences
Estefanía Moreno-Gordaliza, Sven J van der Lee, Ayşe Demirkan, Cornelia M van Duijn, Johan Kuiper, Petrus W Lindenburg, Thomas Hankemeier
A new capillary isotachophoresis (cITP) method for lipoprotein profiling with superior lipoprotein coverage compared to previous methods has been developed, resolving twice as many lipoprotein species (18 peaks/fractions) in serum or plasma in less than 9.5 min. For this, a novel mixture of 24 spacers, including amino acids, dipeptides and sulfonic acids, was developed and fine-tuned, using predictive software (PeakMaster) and testing of spiked serum samples. Lipoprotein peaks were identified by serum-spiking with reference lipoproteins...
November 9, 2016: Analytica Chimica Acta
Leticia Gomez-Sanchez, Luis Garcia-Ortiz, M Carmen Patino-Alonso, Jose I Recio-Rodriguez, Rigo Fernando, Ruth Marti, Cristina Agudo-Conde, Emiliano Rodriguez-Sanchez, Jose A Maderuelo-Fernandez, Rafel Ramos, Manuel A Gomez-Marcos
BACKGROUND: The cardio-ankle vascular index (CAVI) and brachial-ankle pulse wave velocity (baPWV) can reflect both central and peripheral arterial stiffness. Metabolic syndrome (MetS) and its components may increase arterial stiffness and the risk of cardiovascular diseases. However, the correlation of MetS and its components with arterial stiffness is still not clear. The primary aim of this study is thus the relationship using baPWV and CAVI in Caucasian adults with intermediate cardiovascular risk...
October 24, 2016: Cardiovascular Diabetology
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