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Cholesterol controversy

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https://www.readbyqxmd.com/read/28638704/lipid-and-hyperglycemia-factors-in-first-ever-penetrating-artery-infarction-a-comparison-between-different-subtypes
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/28566564/effect-of-thyroxin-treatment-on-carotid-intima-media-thickness-cimt-reduction-in-patients-with-subclinical-hypothyroidism-sch-a-meta-analysis-of-clinical-trials
#10
Muhammad Aziz, Yugandhar Kandimalla, Archana Machavarapu, Anshul Saxena, Sankalp Das, Adnan Younus, Michelle Nguyen, Rehan Malik, Dixitha Anugula, Muhammad A Latif, Choudhry Humayun, Idrees M Khan, Ali Adus, Aisha Rasool, Emir Veledar, Khurram Nasir
AIM: Research shows that subclinical hypothyroidism (SCH) is related to an increased carotid intima-media thickness (CIMT), a surrogate marker of subclinical cardiovascular disease (CVD). It is controversial whether or not SCH should be treated to reduce CVD morbidity and mortality. This meta-analysis aimed to determine whether SCH is associated with an increase in CIMT as compared to Euthyroidism (EU) and whether thyroxin (T4) treatment in SCH can reverse the change in CIMT. METHODS: Two independent reviewers conducted an extensive database research up to December 2016...
May 31, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28559211/effect-of-orlistat-on-plasma-lipids-and-body-weight-a-systematic-review-and-meta-analysis-of-33-randomized-controlled-trials
#11
Amirhossein Sahebkar, Luis E Simental-Mendía, Željko Reiner, Petri T Kovanen, Mario Simental-Mendía, Vanessa Bianconi, Matteo Pirro
Orlistat, an inhibitor of intestinal lipase, promotes body weight reduction. The lipid-lowering efficacy of orlistat is controversial and the effect of orlistat-induced body weight reduction on lipid changes has not been explored in meta-regression analyses. A systematic literature search was conducted to identify randomized controlled trials investigating the efficacy of orlistat on plasma total, low-density lipoprotein and high-density lipoprotein cholesterol, triglycerides and lipoprotein(a) levels. Thirty-three studies were included in the meta-analysis (5522 and 4210 participants in the orlistat therapy and control groups, respectively)...
May 27, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28521802/identification-of-chronic-kidney-disease-patient-characteristics-influencing-the-renoprotective-effects-of-febuxostat-therapy-a-retrospective-follow-up-study
#12
Akinori Yamaguchi, Makoto Harada, Yosuke Yamada, Koji Hashimoto, Yuji Kamijo
BACKGROUND: The ability of antihyperuricemic therapy to exert renoprotective effects in patients with chronic kidney disease (CKD) is controversial. In the present study, we studied patient characteristics that may mask favorable impact of antihyperuricemic therapy on the progression of CKD. METHODS: This was a single-center, retrospective, follow-up study. One-hundred and seventy-eight CKD patients with hyperuricemia who received febuxostat therapy were included in this study...
May 18, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28513244/different-relationship-between-physical-activity-arterial-stiffness-and-metabolic-status-in-obese-subjects
#13
Hyung Joon Joo, Sang-A Cho, Jae-Young Cho, Seunghun Lee, Jae Hyung Park, Cheol Woong Yu, Soon Jun Hong, Do-Sun Lim
BACKGROUND: Although the relationship between physical activity and arterial stiffness has been shown in healthy persons, it remains controversial in obese persons. METHODS: From January to September 2014, we evaluated 795 obese subjects from 25 public health centers in Seoul. We compared physical activity and brachial-ankle pulse wave velocity (baPWV) between obese subjects with metabolic syndrome (MetS) (MO) and obese subjects without MetS (NMO). RESULTS: The MO group had more men, higher body mass index (BMI), higher fasting glucose level, lower high-density lipoprotein-cholesterol level, and higher triglyceride level...
May 17, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28500517/role-of-non-statins-ldl-c-thresholds-and-special-population-considerations-a-look-at-the-updated-2016-acc-consensus-committee-recommendations
#14
REVIEW
Bhavin B Adhyaru, Terry A Jacobson
PURPOSE OF REVIEW: The 2013 ACC/AHA Cholesterol guidelines was a major paradigm shift in the management and treatment of dyslipidemia. The new guidelines outlined "statin benefit groups," highlighted weighing the benefit versus risks of statin therapy ("net benefit"), and discussed the importance of shared decision making between patients and providers in primary prevention. While there was widespread agreement on the main groups benefiting from statin therapy, there was significant controversy regarding LDL-C goals and thresholds, the role of non-statin therapy, and the use of statins in specific populations...
June 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28499696/fenofibrate-decreases-plasma-ceramide-in-type-2-diabetes-patients-a-novel-marker-of-cvd
#15
M Croyal, Z Kaabia, L León, S Ramin-Mangata, T Baty, F Fall, S Billon-Crossouard, A Aguesse, T Hollstein, D R Sullivan, E Nobecourt, G Lambert, M Krempf
AIM: The benefit of the lipid-lowering drug fenofibrate on cardiovascular outcomes is controversial. Our aim was to find new circulating markers to identify those patients most likely to benefit from fenofibrate prescription. METHODS: Analyses were conducted of plasma samples collected from 102 patients with type 2 diabetes, enrolled in the FIELD trial, before and after fenofibrate treatment (200mg/day). Non-targeted and targeted lipid analyses and apolipoprotein measurements were made using mass spectrometry methods...
May 9, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28497379/-choosing-wisely-recommendations-in-cardiology
#16
REVIEW
K Werdan, S Baldus, N Frey, U Nixdorff, K-H Kuck, H Katus
This article describes controversially discussed Choosing wisely recommendations presented by the German Cardiac Society: anticoagulation therapy in patients with atrial fibrillation and "only" moderate stroke risk, on the one hand, and goal-directed low-density lipoprotein (LDL) cholesterol-lowering, on the other. Presuming an adequate regime, patients with atrial fibrillation and only moderate risk of stroke (CHA2DS2-VASc Score of 1 in men and of 2 in women) also benefit from anticoagulation therapy, even in elderly patients...
May 11, 2017: Der Internist
https://www.readbyqxmd.com/read/28465500/association-between-alcohol-consumption-and-metabolic-syndrome-in-a-community-based-cohort-of-korean-adults
#17
Su Kang Kim, Seung-Hee Hong, Joo-Ho Chung, Kyu Bong Cho
BACKGROUND The relationship between alcohol consumption and metabolic syndrome (MetS) remains controversial. This study investigated the relationship between alcohol consumption and MetS components and prevalence. MATERIAL AND METHODS We analyzed 10 037 subjects (3076 MetS and 6961 non-MetS) in a community-based cohort. MetS was defined according to the ATP III Guidelines. Subjects were divided according to amount of alcohol consumption; non-drinker, very light (0.1-5.0 g/day), light (5.1-15.0 g/day), moderate (15...
May 3, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28442766/nanoscale-membrane-domain-formation-driven-by-cholesterol
#18
Matti Javanainen, Hector Martinez-Seara, Ilpo Vattulainen
Biological membranes generate specific functions through compartmentalized regions such as cholesterol-enriched membrane nanodomains that host selected proteins. Despite the biological significance of nanodomains, details on their structure remain elusive. They cannot be observed via microscopic experimental techniques due to their small size, yet there is also a lack of atomistic simulation models able to describe spontaneous nanodomain formation in sufficiently simple but biologically relevant complex membranes...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28430614/features-and-risk-factors-of-carotid-atherosclerosis-in-a-population-with-high-stroke-incidence-in-china
#19
Yanqiu Zhang, Lingling Bai, Min Shi, Hongyan Lu, Yanan Wu, Jun Tu, Jingxian Ni, Jinghua Wang, Li Cao, Ping Lei, Xianjia Ning
Epidemiological studies have reported associations between traditional cardiovascular risk factors and carotid intima-media thickness (CIMT) or carotid plaque. However, definite risk factors at different phases of carotid atherosclerosis remain controversial. We aimed to explore risk factors and characteristics of carotid atherosclerosis at different stages in a low-income population with a high incidence of stroke in China. Between April 2014 and January 2015, we recruited 3789 stroke-free and cardiovascular disease-free residents aged ≥ 45 years...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428219/deficiency-of-cholesteryl-ester-transfer-protein-protects-against-atherosclerosis-in-rabbits
#20
Jifeng Zhang, Manabu Niimi, Dongshan Yang, Jingyan Liang, Jie Xu, Tokuhide Kimura, Anna V Mathew, Yanhong Guo, Yanbo Fan, Tianqing Zhu, Jun Song, Rose Ackermann, Yui Koike, Anna Schwendeman, Liangxue Lai, Subramaniam Pennathur, Minerva Garcia-Barrio, Jianglin Fan, Y Eugene Chen
OBJECTIVE: CETP (cholesteryl ester transfer protein) plays an important role in lipoprotein metabolism; however, whether inhibition of CETP activity can prevent cardiovascular disease remains controversial. APPROACH AND RESULTS: We generated CETP knockout (KO) rabbits by zinc finger nuclease gene editing and compared their susceptibility to cholesterol diet-induced atherosclerosis to that of wild-type (WT) rabbits. On a chow diet, KO rabbits showed higher plasma levels of high-density lipoprotein (HDL) cholesterol than WT controls, and HDL particles of KO rabbits were essentially rich in apolipoprotein AI and apolipoprotein E contents...
June 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
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