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Cholesterol controversy

Zhao Dong, Haozhe Shi, Mingming Zhao, Xin Zhang, Wei Huang, Yuhui Wang, Lemin Zheng, Xunde Xian, George Liu
OBJECTIVE: Lecithin cholesterol acyltransferase (LCAT) plays a pivotal role in HDL metabolism but its influence on atherosclerosis remains controversial for decades both in animal and clinical studies. Because lack of cholesteryl ester transfer protein (CETP) is a major difference between murine and humans in lipoprotein metabolism, we aimed to create a novel Syrian Golden hamster model deficient in LCAT activity, which expresses endogenous CETP, to explore its metabolic features and particularly the influence of LCAT on the development of atherosclerosis...
March 8, 2018: Metabolism: Clinical and Experimental
Jill K Badin, Ayeeshik Kole, Benjamin Stivers, Victor Progar, Anisha Pareddy, Mouhamad Alloosh, Michael Sturek
BACKGROUND: There is a preponderance of evidence implicating diabetes with increased coronary artery disease (CAD) and calcification (CAC) in human patients with metabolic syndrome (MetS), but the effect of diabetes on CAD severity in animal models remains controversial. We investigated whether diabetes exacerbates CAD/CAC and intracellular free calcium ([Ca2+ ]i ) dysregulation in the clinically relevant Ossabaw miniature swine model of MetS. METHODS: Sixteen swine, eight with alloxan-induced diabetes, were fed a hypercaloric, atherogenic diet for 6 months...
March 9, 2018: Journal of Translational Medicine
F Limaiem, A Sassi, G Talbi, S Bouraoui, S Mzabi
BACKGROUND AND AIMS: Traditionally, a gallbladder removed for presumed benign disease is sent for histopathological examination, but this practice has been the subject of controversy. The aim of this study was to assess the usefulness of routine histopathological examination of cholecystectomy specimens and its impact on the management of patients. PATIENTS AND METHODS: he histopathological reports of 1960 patients who underwent cholecystectomy from January 2011 to November 2016 were retrospectively reviewed...
July 2017: Acta Gastro-enterologica Belgica
Hisashi Ohseto, Mami Ishikuro, Masahiro Kikuya, Taku Obara, Yuko Igarashi, Satomi Takahashi, Daisuke Kikuchi, Michiko Shigihara, Chizuru Yamanaka, Masako Miyashita, Satoshi Mizuno, Masato Nagai, Hiroko Matsubara, Yuki Sato, Hirohito Metoki, Hirofumi Tachibana, Mari Maeda-Yamamoto, Shinichi Kuriyama
OBJECTIVE: Metabolic syndrome and the presence of metabolic syndrome components are risk factors for cardiovascular disease (CVD). However, the association between personality traits and metabolic syndrome remains controversial, and few studies have been conducted in East Asian populations. METHODS: We measured personality traits using the Japanese version of the Eysenck Personality Questionnaire (Revised Short Form) and five metabolic syndrome components-elevated waist circumference, elevated triglycerides, reduced high-density lipoprotein cholesterol, elevated blood pressure, and elevated fasting glucose-in 1322 participants aged 51...
April 2018: Journal of Psychosomatic Research
Michele F M Sciacca, Carmelo Tempra, Federica Scollo, Danilo Milardi, Carmelo La Rosa
Alzheimer's Disease (AD) and Type 2 diabetes mellitus (T2DM) are two incurable diseases both hallmarked by an abnormal deposition of the amyloidogenic peptides Aβ and Islet Amyloid Polypeptide (IAPP) in affected tissues. Epidemiological data demonstrate that patients suffering from diabetes are at high risk of developing AD, thus making the search for factors common to the two pathologies of special interest for the design of new therapies. Accumulating evidence suggests that the toxic properties of both Aβ or IAPP are ascribable to their ability to damage the cell membrane...
March 1, 2018: Biochimica et Biophysica Acta
Kyung-In Joung, Sung-Il Cho
BACKGROUND: Whether constitutional low blood pressure (BP) causes substantive health problems has been controversial, and subjects with hypotension exhibit a range of symptoms, from mild typical conditions such as tiredness and dizziness to more specific psychological conditions and even cognitive disorders. This study investigated whether low BP is associated with suicidal ideation in the general population. METHODS: Four years of data from the 2010-2013 Korean National Health and Nutrition Examination Survey were used...
March 1, 2018: BMC Public Health
Eva Vorwieger, Anne Kelso, Jürgen Michael Steinacker, Dorothea Kesztyüs
BACKGROUND: Controversial messages of childhood obesity emerge: Levelling off in terms of body mass index (BMI) is foiled by increases in abdominal obesity. Waist-to-height ratio (WHtR) may be used as a screening tool for abdominal obesity in children. The aim of this study was to investigate clinical and socio-environmental correlates of abdominal obesity in primary schoolchildren. METHODS: Cross-sectional data from 753 children participating in baseline assessments of the outcome evaluation of a school-based prevention program were analysed...
February 23, 2018: BMC Public Health
Nengguang Fan, Liang Peng, Zhenhua Xia, Lijuan Zhang, Yufan Wang, Yongde Peng
Background and Aim: Helicobacter pylori infection has been reported to promote the development of a variety of extra-digestive manifestations, including type 2 diabetes, cardiovascular and liver diseases. Recently, the association between H. pylori infection and non-alcoholic fatty liver disease (NAFLD) was also proposed. However, evidence from different studies was controversial. We therefore performed this study to investigate the relationship between them in a large population of apparently healthy subjects in China...
2018: Frontiers in Microbiology
S Elwany, A A Ibrahim, A I Soliman, R Bazak, H A Ibrahim
BACKGROUND: The relationship between hypertension and epistaxis is controversial and poorly understood. The present research investigated atherosclerosis as a potential risk factor in hypertensive patients with epistaxis. METHODS: A prospective study of 141 hypertensive patients with epistaxis was conducted. The laboratory tests included full blood count, lipid profile and coagulation profile. All patients underwent funduscopic examination of the eye and were classified in terms of four retinopathy grades...
February 15, 2018: Journal of Laryngology and Otology
Taku Koyama, Atsushi Tanaka, Hisako Yoshida, Jun-Ichi Oyama, Shigeru Toyoda, Masashi Sakuma, Teruo Inoue, Yoritaka Otsuka, Koichi Node
Endothelial dysfunction contributes to poor cardiovascular prognosis in patients with type 2 diabetes mellitus (T2DM) and coronary artery disease (CAD). The effect of dipeptidyl peptidase-4 inhibitors on endothelial function remains controversial. We sought to compare the effects of linagliptin and voglibose on endothelial function, as assessed by reactive hyperemia-peripheral arterial tonometry (RH-PAT). Sixteen patients with newly diagnosed T2DM and CAD were randomized 1:1 to linagliptin (5 mg, once-daily) or voglibose (0...
February 9, 2018: Heart and Vessels
Liang Chi, Xiaoming Bian, Bei Gao, Pengcheng Tu, Yunjia Lai, Hongyu Ru, Kun Lu
Although artificial sweeteners are widely used in food industry, their effects on human health remain a controversy. It is known that the gut microbiota plays a key role in human metabolism and recent studies indicated that some artificial sweeteners such as saccharin could perturb gut microbiome and further affect host health, such as inducing glucose intolerance. Neotame is a relatively new low-caloric and high-intensity artificial sweetener, approved by FDA in 2002. However, the specific effects of neotame on gut bacteria are still unknown...
February 9, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Xiaojing Lin, Lingli Liu, Youyun Fu, Jing Gao, Yunyun He, Yang Wu, Xuemei Lian
Multiple epidemiologic studies have evaluated the relationship between dietary cholesterol and lung cancer risk, but the association is controversial and inconclusive. A meta-analysis of case-control studies and cohort studies was conducted to evaluate the relationship between dietary cholesterol intake and lung cancer risk in this study. A relevant literature search up to October 2017 was performed in Web of Science, PubMed, China National Knowledge Infrastructure, Sinomed, and VIP Journal Integration Platform...
February 8, 2018: Nutrients
Taiki Shigematsu, Kenichiro Koshiyama, Shigeo Wada
The interdigitated gel (LβI) phase is one of the membrane phases of phospholipid molecules, in which the hydrophobic tails of the phospholipid molecules penetrate the opposite leaflet of the bilayer. Recent molecular dynamics (MD) simulations have shown that interdigitation can take place as a phase transition from the liquid-ordered (Lo) phase to the LβI phase under stretching. However, there is still no conclusive experimental evidence for this process, so its existence remains controversial. In this study, to explain the transition from energy balance, we propose a free energy model...
February 8, 2018: Journal of Physical Chemistry. B
Li Li, Yi Ma, Xiao-Ming Shang, Ye Hong, Jian-Hui Wang, Zheng Tan, Ya-Jun Wang, Xue-Bin Geng
BACKGROUND: Although a lot of studies have  shown serum uric acid (SUA) could be a marker of adverse prognosis in patients with acute myocardial infarction, the role of SUA as a risk factor for myocardial infarction is controversial. This study aimed to evaluate the association between hyperuricemia and short-term outcomes of elderly patients with acute ST-segment elevation myocardial infarction (STEMI). METHODS: Six hundred and seventy-three elderly patients (≥ 60 years) were divided into high-SUA-level group (group H: N = 168) and low-SUA-level group (group L: N = 505) according to the SUA levels on admission...
February 6, 2018: Aging Clinical and Experimental Research
Majid Hajifaraji, Mohammad Matlabi, Farihe Ahmadzadeh-Sani, Yadollah Mehrabi, Mohammad Salem Rezaee, Homa Hajimehdipour, Abbas Hasanzadeh, Katayoun Roghani
Objective: Dyslipidemia has been considered as a major risk factor for coronary heart disease. Alternative medicine has a significant role in treatment of dyslipidemia. There are controversial findings regarding the effects of sour tea on dyslipidemia. The aim of this study was to evaluate the impact of aqueous extract of dried calyx of sour tea on polygenic dyslipidemia. Materials and Methods: This clinical trial was done on 43 adults (30-60 years old) with polygenic dyslipidemia that were randomly assigned to the intervention and control groups...
January 2018: Avicenna Journal of Phytomedicine
Lang Wang, Mao-Juan Guo, Qing Gao, Jin-Feng Yang, Lin Yang, Xiao-Li Pang, Xi-Juan Jiang
BACKGROUND: Probiotics supplements provide a new nonpharmacological alternative to reduce cardiovascular risk factors. The impact of probiotics on the reduction of total cholesterol (TC) remains controversial. We conducted a meta-analysis to showcase the most updated and comprehensive evaluation of the studies. METHODS: Randomized controlled trials (RCTs) were searched from electronic databases, including PubMed, Embase, Cochrane Central Register of Controlled Trials, Chinese Biomedical Literature Database, China National Knowledge Infrastructure, Wanfang database dating from January 2007 to January 2017...
February 2018: Medicine (Baltimore)
Kate J Bowen, Valerie K Sullivan, Penny M Kris-Etherton, Kristina S Petersen
PURPOSE OF REVIEW: This review summarizes recent developments in nutrition and cardiovascular disease (CVD) prevention. RECENT FINDINGS: Contemporary dietary guidance recommends healthy dietary patterns with emphasis on food-based recommendations because the totality of the diet (i.e., the combinations and quantities of foods and nutrients consumed) is an important determinant of health. In many guidelines, recommendations are still made for saturated fat, added sugar, sodium, and dietary cholesterol because these are over-consumed by many people and are related to chronic disease development...
January 30, 2018: Current Atherosclerosis Reports
Marcela Segoviano-Mendoza, Manuel Cárdenas-de la Cruz, José Salas-Pacheco, Fernando Vázquez-Alaniz, Osmel La Llave-León, Francisco Castellanos-Juárez, Jazmín Méndez-Hernández, Marcelo Barraza-Salas, Ernesto Miranda-Morales, Oscar Arias-Carrión, Edna Méndez-Hernández
BACKGROUND: Cholesterol has been associated as a risk factor for cardiovascular disease. Recently, however, there is growing evidence about crucial requirement of neuron membrane cholesterol in the organization and function of the 5-HT1A serotonin receptor. For this, low cholesterol level has been reported to be associated with depression and suicidality. However there have been inconsistent reports about this finding and the exact relationship between these factors remains controversial...
January 15, 2018: BMC Psychiatry
Saedeh Salehi, Fatemeh Sadeghi, Masoumeh Akhlaghi, Mohammad Amin Hanifpour, Mahdi Roshanzamir
BACKGROUND/OBJECTIVES: The effect of vitamin D on glycemic status of diabetes patients is controversial. The objective was to assess the effect of vitamin D3 -fortified milk on cardiometabolic markers of patients with type 2 diabetes. SUBJECTS/METHODS: In this randomized triple-blind, placebo-controlled trial, 102 patients (34 males and 68 females) aged 31-74 years with type 2 diabetes were randomized to receive either 250 ml unfortified or 250 ml 1000 IU vitamin D3 -fortified milk daily for 9 weeks...
January 11, 2018: European Journal of Clinical Nutrition
David R Gater, Gary J Farkas, Arthur S Berg, Camilo Castillo
CONTEXT/OBJECTIVE: Recent literature would suggest the prevalence of metabolic syndrome in persons with spinal cord injury (SCI) is higher than that of the general population, although no large cohorts have yet been reported. Part of the controversy relates to the differing definitions provided for metabolic syndrome and the characterization of obesity in persons with SCI. DESIGN/PARTICIPANTS: The current retrospective investigation represents a cross-sectional cohort of 473 veterans with SCI from a single center in the mid-Atlantic region of the United States for whom modified International Diabetes Federation (IDF) criterion variables for the metabolic syndrome were available in the computerized personal record system (CPRS)...
January 11, 2018: Journal of Spinal Cord Medicine
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