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Cholesterol controversy

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https://www.readbyqxmd.com/read/28743061/circulating-ctrp9-levels-are-increased-in-patients-with-newly-diagnosed-type-2-diabetes-and-correlated-with-insulin-resistance
#1
Yanjun Jia, Xiaohe Luo, Ying Ji, Jingwen Xie, Han Jiang, Mao Fu, Xiaoqiang Li
AIMS: C1q/TNF-related protein-9 (CTRP9) is a novel adipokine that has been shown to promote lipid metabolism, enhance insulin sensitivity and protect against cardiovascular disease. However, previous studies in humans have produced controversial results regarding the association between CTRP9 and insulin resistance. The objective of this study was to evaluate the relationships between CTRP9 and insulin resistance in Chinese population. METHODS: Subjects with normal glucose tolerance (NGT, n=108), impaired glucose tolerance (IGT, n=92), and newly diagnosed type 2 diabetes mellitus (nT2DM, n=106) were recruited to determining the circulating CTRP9 and adiponectin levels by enzyme linked immunosorbent assay...
July 8, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28726527/the-comparison-and-estimation-of-the-prognostic-value-of-lipid-profiles-in-patients-with-prostate-cancer-depends-on-cancer-stage-advancement
#2
Edyta Idalia Wolny-Rokicka, Andrzej Tukiendorf, Jerzy Wydmański, Agnieszka Zembroń-Łacny
Lipid profiles and prostate cancer have a controversial relationship, and the predictive ability of lipids in determining cancer risk estimation is still questionable. This study demonstrates a significance assessment of the plasma lipid profiles of subjects with prostate cancer. Locoregional subjects irradiated with external beam therapy were compared to prostate cancer subjects with bone metastases. The histopathologic diagnosis of 103 subjects (71 locoregional [Group 1] and 32 palliative [Group 2]) were analyzed and compared using their blood samples, total cholesterol (CHL), triglycerides (TG), high-density lipoprotein (HDL) cholesterol, and low-density lipoprotein (LDL) cholesterol...
July 1, 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/28703031/lower-circulating-migration-inhibitory-factor-protein-is-associated-with-metabolic-syndrome-and-diabetes
#3
Altan Onat, Evin Ademoğlu, Günay Can, Neslihan Çoban, Ayşem Kaya, Hüsniye Yüksel
AIM: The controversial relationship between macrophage migration inhibitory factor (MIF) and the likelihood of cardiometabolic diseases was investigated. Results/methodology: Assayed MIF protein from 1225 adults was cross-sectionally analyzed. MIF was independently inversely associated with age, total testosterone and positively with high-density lipoprotein-cholesterol. In men MIF correlation with age, testosterone and waist circumference converted from inverse in the upper to positive in the bottom MIF third...
July 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28699975/the-expected-cardiovascular-benefit-of-plasma-cholesterol-lowering-with-or-without-ldl-c-targets-in-healthy-individuals-at-higher-cardiovascular-risk
#4
Fernando Henpin Yue Cesena, Antonio Gabriele Laurinavicius, Viviane A Valente, Raquel D Conceição, Raul D Santos, Marcio S Bittencourt
Background: There is controversy whether management of blood cholesterol should be based or not on LDL-cholesterol (LDL-c) target concentrations. Objectives: To compare the estimated impact of different lipid-lowering strategies, based or not on LDL-c targets, on the risk of major cardiovascular events in a population with higher cardiovascular risk. Methods: We included consecutive individuals undergoing a routine health screening in a single center who had a 10-year risk for atherosclerotic cardiovascular disease (ASCVD) ≥ 7...
June 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28699974/cardiovascular-risk-stratification-and-statin-eligibility-based-on-the-brazilian-vs-north-american-guidelines-on-blood-cholesterol-management
#5
Fernando Henpin Yue Cesena, Antonio Gabriele Laurinavicius, Viviane A Valente, Raquel D Conceição, Raul D Santos, Marcio S Bittencourt
Background: The best way to select individuals for lipid-lowering treatment in the population is controversial. Objective: In healthy individuals in primary prevention: to assess the relationship between cardiovascular risk categorized according to the V Brazilian Guideline on Dyslipidemia and the risk calculated by the pooled cohort equations (PCE); to compare the proportion of individuals eligible for statins, according to different criteria. Methods: In individuals aged 40-75 years consecutively submitted to routine health assessment at one single center, four criteria of eligibility for statin were defined: BR-1, BR-2 (LDL-c above or at least 30 mg/dL above the goal recommended by the Brazilian Guideline, respectively), USA-1 and USA-2 (10-year risk estimated by the PCE ≥ 5...
June 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28689098/evaluation-of-clinical-and-laboratory-parameters-used-in-the-identification-of-index-cases-for-genetic-screening-of-familial-hypercholesterolemia-in-brazil
#6
Pãmela R S Silva, Cinthia E Jannes, Theo G M Oliveira, Marcio H Miname, Viviane Z Rocha, Ana Paula Chacra, Maria Helane C Gurgel, Renan M Montenegro, Carlos Roberto M Rodrigues Sobrinho, Annie Seixas Bello Moreira, Marcelo H V Assad, Marina R C Pinto, Mauricio Teruo Tada, Raul D Santos, Alexandre C Pereira, Jose E Krieger
BACKGROUND AND AIMS: There is controversy on the accuracy of different diagnostic criteria for familial hypercholesterolemia (FH). The aim of this study is to assess the performance of different clinical criteria used to identify individuals for FH genetic cascade screening in Brazil. METHODS: All index cases (IC) registered in the Hipercol Brasil program between 2011 and 2016 were analyzed. Inclusion criteria were age ≥18 years and elevated LDL-cholesterol (LDL-C) levels, with a conclusive result in the genetic test, whether positive or negative...
June 22, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28684113/sericin-improves-heart-and-liver-mitochondrial-architecture-in-hypercholesterolaemic-rats-and-maintains-pancreatic-and-adrenal-cell-biosynthesis
#7
Sumate Ampawong, Duangnate Isarangkul, Pornanong Aramwit
Hypercholesterolaemia is well known to be associated with mitochondrial dysfunction, subsequently leading to multiple organ failure. Similar to other natural products, sericin is a candidate for adjunctive therapy in hyperlipidaemic conditions. However, the cholesterol-lowering mechanisms of sericin are multifactorial and controversial. Here, a high-cholesterol-fed rat model with or without sericin treatment was established using a dosage of 1,000mg/kg/day for 30 days. Blood lipid profiles, oxidative stress markers (superoxide dismutase, SOD; malondialdehyde, MDA; nuclear factor erythroid 2-related factor, Nrf-2), dysmorphic mitochondria in relation to fission (dynamin-related protein-1; Drp-1) and fusion (guanosine triphosphatase mutated in dominant optic atrophy; OPA-1) markers and biosynthetic markers (aquaporin, AQP-1; tubulin-4β, Tb4B) in the pancreas and adrenal gland were evaluated...
July 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28680384/randomized-controlled-trial-of-the-effects-of-consumption-of-yabukita-or-benifuuki-encapsulated-tea-powder-on-low-density-lipoprotein-cholesterol-level-and-body-weight
#8
Yuko Igarashi, Taku Obara, Mami Ishikuro, Hiroko Matsubara, Michiko Shigihara, Hirohito Metoki, Masahiro Kikuya, Yoichi Sameshima, Hirofumi Tachibana, Mari Maeda-Yamamoto, Shinichi Kuriyama
Background: Previous studies have reported controversial results for the association between green tea consumption and low-density lipoprotein (LDL)-cholesterol and body weight. Objective: The objective of this trial was to determine the effects of two kinds of green tea on LDL-cholesterol and body weight. Methods: We randomly assigned 151 participants (98 men, 53 women) aged 30-70 years into three groups: Yabukita green tea group, Benifuuki green tea group, or placebo group. Participants consumed 1.8 g/day of green tea extract powder or placebo for 12 weeks...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28669687/blood-lipids-profile-and-lung-cancer-risk-in-a-meta-analysis-of-prospective-cohort-studies
#9
Xiaojing Lin, Lei Lu, Lingli Liu, Siyu Wei, Yunyun He, Jing Chang, Xuemei Lian
BACKGROUND: Emerging evidence has connected lipid metabolism disturbance with lung diseases, but the relationship between blood lipid profile and lung cancer risk is controversial and inconclusive. OBJECTIVE: We conducted a meta-analysis of prospective cohort studies to evaluate the relationship between blood lipids profile and lung cancer incidence. METHODS: Relevant studies were identified by searching PubMed, Cochrane Library, Web of Science, EBSCO, Ovid, CNKI, VIP, and WANGFANG MED through August 2016...
May 31, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28667781/translocator-protein-18-kda-an-update-on-its-function-in-steroidogenesis
#10
REVIEW
Vassilios Papadopoulos, Jinjiang Fan, Barry Zirkin
Translocator protein (18 kDa), TSPO, is a ubiquitous mitochondrial protein. Studies of its responses to drug and endogenous ligands have shown TSPO to be involved either directly or indirectly in numerous biological functions, including mitochondrial cholesterol transport and steroid hormone biosynthesis, porphyrin transport and heme synthesis, apoptosis, cell proliferation, and anion transport. Localized to the outer mitochondrial membrane of steroidogenic cells, TSPO has been shown to associate with cytosolic and mitochondrial proteins as part of a large multiprotein complex involved in mitochondrial cholesterol transport, the rate-limiting step in steroidogenesis...
July 1, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28660583/analysis-of-fatty-acid-and-cholesterol-content-from-detergent-resistant-and-detergent-free-membrane-microdomains
#11
Mark E McClellan, Michael H Elliott
The compartmentalization of cellular membranes into discrete membrane microdomains (known as lipid rafts) challenged the original definition of membranes as containing randomly distributed lipid and protein components. The lipid microdomain hypothesis has generated significant controversy and rigorous inquiry based on the attractive idea that such domains concentrate machinery to mediate cellular events such as signaling and endocytosis. As such, numerous studies have used biochemical, cell biological, and biophysical methodologies to define the composition of such domains in a variety of experimental contexts...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28638704/lipid-and-hyperglycemia-factors-in-first-ever-penetrating-artery-infarction-a-comparison-between-different-subtypes
#12
Shaoyang Sun, Yanqiang Wang, Yuge Wang, Xuejiao Men, Jian Bao, Xueqiang Hu, Zhengqi Lu
BACKGROUND: The pathogenesis and progression of branch atheromatous disease (BAD), which differs from lipohyalinotic degeneration (LD), remains controversial. Few studies have investigated the lipid indices and glycometabolism status factors for BAD in first-ever penetrating artery infarction (PAI). METHODS: We retrospectively examined acute stroke patients with PAI admitted within 3 days after stroke. All patients underwent diffusion weight magnetic resonance imaging (DWI) and magnetic resonance angiography (MRA) and/or computed tomography angiography (CTA)...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28634218/high-quality-statin-trials-support-the-2013-acc-aha-cholesterol-guidelines-after-hope-3-the-multi-ethnic-study-of-atherosclerosis
#13
Martin B Mortensen, Matthew J Budoff, Dong Li, Khurram Nasir, Michael J Blaha, Veit Sandfort, Carlos J Rodriguez, Pamela Ouyang, Erling Falk
The 2013 American College of Cardiology/American Heart Association (ACC/AHA) guideline on cholesterol treatment to prevent atherosclerotic cardiovascular disease (ASCVD) has been criticized for lowering the risk thresholds for primary prevention with statin therapy. Although the ≥ 7.5% (class I) and ≥ 5% (class IIa) 10-year ASCVD risk thresholds were identified as new indications for treatment by extrapolating results obtained in randomized controlled trials (RCT) of statin therapy, results from population-based European cohorts indicate that >30% of individuals eligible for statin therapy by class I recommendations do not have RCT data supporting statin efficacy...
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28634189/reduced-platelet-count-but-no-major-platelet-function-abnormalities-are-associated-with-loss-of-function-atp-binding-cassette-1-abca1-gene-mutations
#14
Pietro Minuz, Alessandra Meneguzzi, Eti Alessandra Femia, Cristiano Fava, Stefano Calabria, Mariangela Scavone, Donatella Benati, Giovanni Poli, Carlo Zancanaro, Sebastiano Calandra, Tiziano Lucchi, Marco Cattaneo
Loss of function mutations of the the ATP-binding cassette-1 (ABCA1) gene are the cause of Tangier disease (TD) in homozygous subjects and familial HDL deficiency (FHD) in heterozygous subjects. These disorders are characterized by reduced plasma HDL-cholesterol and altered efflux of cholesterol from cells. Previous studies in TD patients and ABCA1(-/-) murine models reported defects in platelet count, morphology and function, but the issue is still controversial. We analysed three subjects with low to very low HDL cholesterol levels due to loss of function mutations of the ABCA1 gene...
June 20, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28633641/expression-levels-of-atherosclerosis-associated-mir-143-and-mir-145-in-the-plasma-of-patients-with-hyperhomocysteinaemia
#15
Kejian Liu, Saiyare Xuekelati, Yue Zhang, Yin Yin, Yue Li, Rui Chai, Xinwei Li, Yi Peng, Jiangdong Wu, Xiaomei Guo
BACKGROUND: An elevated level of homocysteine (Hcy) in the blood is designated hyperhomocysteinaemia (Hhcy) and is regarded as a strong risk factor for the development of atherosclerosis (ATH), although the association remains controversial. Considered to be essential gene expression regulators, micro-RNAs (miRNAs) modulate cardiovascular disease development and thus can be regarded as potential biomarkers and therapeutic targets in atherosclerosis. The aim of the current study is to investigate the expression levels of atherosclerosis-associated miR-143 and miR-145 in Hhcy patients and predict the progress of atherosclerosis in Hhcy patients...
June 20, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28623739/high-density-lipoprotein-cholesterol-levels-are-associated-with-coronary-severity-but-not-with-outcomes-in-new-onset-patients-with%C3%A2-stable-coronary-artery-disease
#16
Hui-Hui Liu, Yuan-Lin Guo, Na-Qiong Wu, Cheng-Gang Zhu, Ying Gao, Ping Qing, Sha Li, Xi Zhao, Yan Zhang, Di Sun, Geng Liu, Qian Dong, Jian-Jun Li
BACKGROUND AND AIMS: The atheroprotective role of high-density lipoprotein cholesterol (HDL-C) levels in coronary artery disease (CAD) remains controversial. This study sought to reappraise the value of HDL-C in predicting the severity and outcomes of new-onset patients with stable CAD in Chinese populations. METHODS: A total of 4205 new-onset patients with stable CAD who received coronary angiography were enrolled to analyze the relation of HDL-C to coronary severity and major adverse cardiovascular events (MACEs)...
June 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28616955/niacin-for-primary-and-secondary-prevention-of-cardiovascular-events
#17
REVIEW
Stefan Schandelmaier, Matthias Briel, Ramon Saccilotto, Kelechi K Olu, Armon Arpagaus, Lars G Hemkens, Alain J Nordmann
BACKGROUND: Nicotinic acid (niacin) is known to decrease LDL-cholesterol, and triglycerides, and increase HDL-cholesterol levels. The evidence of benefits with niacin monotherapy or add-on to statin-based therapy is controversial. OBJECTIVES: To assess the effectiveness of niacin therapy versus placebo, administered as monotherapy or add-on to statin-based therapy in people with or at risk of cardiovascular disease (CVD) in terms of mortality, CVD events, and side effects...
June 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28604915/emergence-of-compositionally-tunable-nanoscale-dynamical-heterogeneity-in-model-binary-lipid-biomembranes
#18
Roobala C, Jaydeep K Basu
While the existence of nanoscale dynamical heterogeneity in biological membranes has been suggested to act as an active functional platform for enabling various cellular processes like signal transduction and viral or bacterial entry, it has been extremely difficult to detect the existence of such domains. Model lipid bilayer membranes have been widely used to detect such dynamical heterogeneity in order to avoid complications arising from the compositional heterogeneity of cellular membranes. However, even in model biological membranes the issue of nanoscale lipid dynamics has remained controversial and unresolved due to the difficulty of detecting the existence of such dynamical heterogeneity on the scale of 10-300 nm...
June 12, 2017: Soft Matter
https://www.readbyqxmd.com/read/28592259/safety-of-low-molecular-weight-heparin-compared-to-unfractionated-heparin-in-hemodialysis-a-systematic-review-and-meta-analysis
#19
Hind Harrak Lazrak, Émilie René, Naoual Elftouh, Martine Leblanc, Jean-Philippe Lafrance
BACKGROUND: Low molecular weight heparins (LMWH) have been extensively studied and became the treatment of choice for several indications including pulmonary embolism. While their efficacy in hemodialysis is considered similar to unfractionated heparin (UFH), their safety remains controversial mainly due to a risk of bioaccumulation in patients with renal impairment. The aim of this systematic review was to evaluate the safety of LMWH when compared to UFH for extracorporeal circuit (ECC) anticoagulation...
June 7, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28577872/association-of-adiponectin-with-subclinical-atherosclerosis-in-a-mexican-mestizo-population
#20
Juan Gabriel Juárez-Rojas, Rosalinda Posadas-Sánchez, María Del Rocío Martínez-Alvarado, Margarita Torres-Tamayo, Esteban Jorge-Galarza, Erika Yamel Mancilla-Valenzuela, Carlos Posadas-Romero, Guillermo Celestino Cardoso-Saldaña, María Del Carmen González-Salazar, Gilberto Vargas-Alarcón, Aida Xochitl Medina-Urrutia
BACKGROUND AND AIMS: Adiponectin (ADPN) is a cardioprotective adipocytokine, and its association with atherosclerosis development is controversial. The aim of the present study was to assess the association of low ADPN plasma levels with the presence of subclinical atherosclerosis in a Mexican-Mestizo population without history of diabetes or coronary artery disease (CAD). METHODS: In 818 subjects (53.4 ± 9 years; 49.9% women) anthropometry, subcutaneous and visceral adipose tissue, lipids, glucose, C-reactive protein (CRP), insulin, and ADPN levels were determined...
January 2017: Archives of Medical Research
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