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https://www.readbyqxmd.com/read/28103467/-investigation-of-genetic-etiology-in-neurodegenerative-dementias-recommendations-from-the-centro-hospitalar-s%C3%A3-o-jo%C3%A3-o-neurogenetics-group
#1
João Massano, Miguel Leão, Carolina Garrett
In the past few years several gene mutations have been identified as causative of the most frequent neurodegenerative dementias (Alzheimer disease and frontotemporal dementia). These advances, along with the complex phenotype-genotype relationships and the costs associated with genetic testing, have often made it difficult for clinicians to decide with regard to a rational plan for the investigation of the genetic etiology of the degenerative dementias. The Centro Hospitalar São João Neurogenetics Group, a multidisciplinary team of Neurologists and Geneticists with special interest in neurogenetic disorders, devised consensus recommendations for the investigation of the genetic etiology of Alzheimer disease and frontotemporal dementia in clinical practice, based on international consensus documents (currently containing partly outdated information) and published scientific evidence on this topic...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103268/direct-observation-of-enhanced-nitric-oxide-in-a-murine-model-of-diabetic-nephropathy
#2
Margien G S Boels, Ernst E H van Faassen, M Cristina Avramut, Johan van der Vlag, Bernard M van den Berg, Ton J Rabelink
Uncoupling of nitric oxide synthase (NOS) secondary to redox signaling is a central mechanism in endothelial and macrophage activation. To date studies on the production of nitric oxide (NO) during the development of diabetic complications show paradoxical results. We previously showed that recoupling eNOS by increasing the eNOS cofactor tetrahydrobiopterin (BH4) could restore endothelial function and prevent kidney injury in experimental kidney transplantation. Here, we employed a diabetic mouse model to investigate the effects of diabetes on renal tissue NO bioavailability...
2017: PloS One
https://www.readbyqxmd.com/read/28103200/depressive-symptoms-influence-global-cognitive-impairment-indirectly-by-reducing-memory-and-executive-function-in-patients-with-mild-cognitive-impairment
#3
Chathuri Yatawara, Levinia Lim, Russell Chander, Juan Zhou, Nagaendran Kandiah
BACKGROUND: Depressive symptoms negatively influence global cognition in the elderly; however, the mechanism of this effect remains unclear. OBJECTIVE: To investigate whether depressive symptoms influence global cognitive function in patients with mild cognitive impairment (MCI) and mild Alzheimer's disease (AD) by impeding specific neuropsychological abilities and under what conditions this effect might occur. METHOD: A sample of 259 participants (104 cognitively normal elderly controls, 66 patients with MCI and 89 patients with mild AD) underwent a comprehensive neuropsychological assessment...
December 2016: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28102888/genetic-polymorphisms-in-estrogen-metabolic-pathway-associated-with-risks-of-alzheimer-s-disease-evidence-from-a-southern-chinese-population
#4
Lu Hua Chen, Yan Hui Fan, Patrick Yu Ping Kao, Deborah Tip Yin Ho, Joyce Cheuk Tung Ha, Leung Wing Chu, You-Qiang Song
OBJECTIVES: To investigate whether genetic variations on the estrogen metabolic pathway would be associated with risk of Alzheimer's disease (AD). DESIGN: Cross-sectional study. SETTING: Individuals were recruited at the Memory Clinic, Queen Mary Hospital, Hong Kong. PARTICIPANTS: Chinese individuals with (n = 426) and without (n = 350) AD. MEASUREMENTS: All subjects underwent a standardized cognitive assessment and genotyping of four candidate genes on the estrogen metabolic pathway (estrogen receptor α gene (ESR1), estrogen receptor β gene (ESR2), cytochrome P450 19A1 gene (CYP19A1), cytochrome P450 11A1 gene (CYP11A1))...
January 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28102587/dietary-%C3%AE-cyclodextrin-reduces-atherosclerosis-and-modifies-gut-flora-in-apolipoprotein-e-deficient-mice
#5
Toshihiro Sakurai, Akiko Sakurai, Ye Chen, Boris L Vaisman, Marcelo J Amar, Milton Pryor, Seth G Thacker, Xue Zhang, Xujing Wang, Yubo Zhang, Jun Zhu, Zhi-Hong Yang, Lita A Freeman, Alan T Remaley
SCOPE: α-Cyclodextrin (α-CD), a cyclic polymer of glucose, has been shown to lower plasma cholesterol in animals and humans; however, its effect on atherosclerosis has not been previously described. METHODS AND RESULTS: apoE-knockout mice were fed either low-fat diet (LFD; 5.2% fat, w/w), or Western high fat diet (21.2% fat) containing either no additions (WD), 1.5% α-CD (WDA); 1.5% β-CD (WDB); or 1.5% oligofructose-enriched inulin (WDI). Although plasma lipids were similar after 11 weeks on the WD vs...
January 19, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28101967/host-related-factors-explaining-interindividual-variability-of-carotenoid-bioavailability-and-tissue-concentrations-in-humans
#6
Torsten Bohn, Charles Desmarchelier, Lars O Dragsted, Charlotte S Nielsen, Wilhelm Stahl, Ralph Rühl, Jaap Keijer, Patrick Borel
Carotenoid dietary intake and their endogenous levels have been associated with a decreased risk of several chronic diseases. There are indications that carotenoid bioavailability depends, in addition to the food matrix, on host factors. These include diseases (e.g. colitis), life-style habits (e.g. smoking), gender and age, as well as genetic variations including single nucleotide polymorphisms that govern carotenoid metabolism. These are expected to explain interindividual differences that contribute to carotenoid uptake, distribution, metabolism and excretion, and therefore possibly also their association with disease risk...
January 19, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28101236/identification-of-proteins-associated-with-pediatric-bilateral-wilms-tumor
#7
Zechen Yan, Qingjun Meng, Jinjian Yang, Junjie Zhang, Wei Zhao, Fei Guo, Dongjian Song, Yuxiao Zhan, Dandan Fan, Ruiyi Zhou, Shuqiang Zuo, Zehua Wang, Jiekai Yu, Shu Zheng, Jiaxiang Wang
Wilms tumor (WT) is the most common cancer that primarily develops in abdominal solid organ of children. It has no incipient symptom, and the most frequent symptoms are a painless, palpable abdominal mass. Proteomics technology was used to select the differentially expressed proteins of bilateral Wilms tumor (BWT). Ten serum samples of children with BWT were chosen, 20 serum samples of children with unilateral WT (UWT) and 20 serum samples of healthy children were selected, and proteomics technology was used to detect and collect data...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100865/investigation-of-the-5q33-3-longevity-locus-and-age-related-phenotypes
#8
Marianne Nygaard, Mikael Thinggaard, Kaare Christensen, Lene Christiansen
A large meta-analysis recently found the 5q33.3 locus to be associated with survival to ≥ 90 years and lower all-cause mortality, thus suggesting it as a third human longevity locus alongside APOE and FOXO3A. The 5q33.3 locus has previously been associated with blood pressure regulation and cardiovascular diseases in middle-aged individuals. However, part of the influence on mortality appears to be independent of cardiovascular phenotypes, and the role of the 5q33.3 locus in longevity and survival is therefore still partly unknown...
January 13, 2017: Aging
https://www.readbyqxmd.com/read/28100776/crystallographic-snapshots-of-class-a-%C3%AE-lactamase-catalysis-reveal-structural-changes-that-facilitate-%C3%AE-lactam-hydrolysis
#9
Xuehua Pan, Yunjiao He, Jinping Lei, Xuhui Huang, Yanxiang Zhao
β-lactamases confer resistance to β-lactam-based antibiotics. There is great interest in understanding their mechanisms to enable the development of β-lactamase-specific inhibitors. The mechanism of Class A β-lactamases has been studied extensively, revealing Lys73 and Glu166 as general bases that assist the catalytic residue Ser70. However, the specific roles of these two residues within the catalytic cycle remains not fully understood. To help resolve this question, we first identified a Glu166His mutant that is functional but kinetically slowed...
January 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28100346/-impact-of-cd137-cd137l-signaling-mediated-exocytosis-of-autophagosome-within-vascular-smooth-muscle-cells-on-the-formation-of-atherosclerotic-calcification
#10
B Li, X Y Li, W Zhong, C Shao, Z Q Wang, W Yuan, J C Yan
Objective: To explore whether CD137-CD137L signaling mediated exocytosis of autophagosome within vascular smooth muscle cells (VSMCs) could influence the formation of atherosclerotic calcification. Methods: Fifteen 8-week-old male ApoE(-/-)(C57BL/6J-KO) mice fed with high fat diet for 5 weeks were randomly divided into three groups by using stochastic indicator method as follows: control group, n=5; agonist-CD137 group: agonist-CD137 antibody 200 μg/2 weeks for 4 weeks, ip, n=5; anti-CD137 group: 200 μg anti-CD137 antibody+ 200 μg agonist-CD137 antibody/2 weeks for 4 weeks, ip, n=5...
January 25, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28100345/-anti-%C3%AE-2-gp%C3%A2-antibodies-accelerate-the-formation-of-atherosclerosis-in-high-fat-diet-fed-apoe-deficient-mice
#11
X Y Wang, H Zhou, X J Zhu, L F Xia, C He, Q Q Cai, T Wang
Objective: To investigate the effects of anti-β(2) glycoprotein Ⅰ(β(2)GPⅠ) antibody on atherosclerosis in ApoE deficient mice. Methods: A total of 24 male ApoE deficient mice of specific pathogen free level(six to eight-week old)were divided into normal control group, high fat diet group, high fat diet with anti-β(2)GPⅠ group, high fat diet with homologous control antibody group (n=6 each group). During the feeding period, mice were weighed every 2 weeks and were intraperitoneally injected with anti-β(2)GPⅠIgG (100 μg/per) and homologous control IgG (100 μg/per) according to grouping once a week...
January 25, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28100103/systematic-review-of-genetic-risk-factors-for-sustaining-a-mild-traumatic-brain-injury
#12
William Panenka, Andrew Gardner, Michael Dretsch, Gogce Crynen, Fiona C Crawford, Grant L Iverson
INTRODUCTION: This systematic review examined the association between genetics and risk for sustaining a traumatic brain injury. METHODS: Articles published in English from 1980 to July 2016 obtained from the online databases PubMed, PsycINFO®, MEDLINE®, EMBASE, and Web of Science. RESULTS: 5,903 articles were identified, 77 underwent full-text screening, and six were included in this review. Five studies examined the risk of concussion associated with Apolipoprotein E alleles (APOE-ε2 ,ε3 ,ε4,), and polymorphisms of the APOE promoter (rs405509), Brain Derived Neurotrophic Factor (BDNF, rs6265), and Dopamine Receptor D2 (DRD2, rs1800497) were each considered in two studies...
January 18, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28099660/socioeconomic-hygienic-and-sanitation-factors-in-reducing-diarrhea-in-the-amazon
#13
Katiuscia Shirota Imada, Thiago Santos de Araújo, Pascoal Torres Muniz, Valter Lúcio de Pádua
OBJECTIVE: To analyze the contributions of the socioeconomic, hygienic, and sanitation improvements in reducing the prevalence of diarrhea in a city of the Amazon. METHODS: In this population-based cross-sectional study, we analyzed data from surveys conducted in the city of Jordão, Acre. In 2005 and 2012, these surveys evaluated, respectively, 466 and 826 children under five years old. Questionnaires were applied on the socioeconomic conditions, construction of houses, food and hygienic habits, and environmental sanitation...
December 22, 2016: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28099659/factors-associated-with-the-use-of-antihypertensives-among-seniors
#14
Kaio Henrique Correa Massa, José Leopoldo Ferreira Antunes, Maria Lúcia Lebrão, Yeda Aparecida Oliveira Duarte, Alexandre Dias Porto Chiavegatto
OBJECTIVE: Analyze the use of antihypertensives among seniors and the association with socioeconomic and behavioral characteristics. METHODS: In this seriate cross-sectional study, we used data from the Saúde, Bem Estar e Envelhecimento study (SABE - Health, Well-being, and Aging), conducted in 2000, 2006, and 2010 in the city of São Paulo. Association between the use of antihypertensives and the demographic, behavioral, and socioeconomic characteristics and risk factors was analyzed by using multilevel logistic regression models...
December 22, 2016: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28099656/association-between-diabetes-and-tuberculosis-case-control-study
#15
Susan Martins Pereira, Gleide Santos de Araújo, Carlos Antônio de Souza Teles Santos, Maeli Gomes de Oliveira, Maurício Lima Barreto
OBJECTIVE: To test the association between diabetes and tuberculosis. METHODS: It is a case-control study, matched by age and sex. We included 323 new cases of tuberculosis with positive results for bacilloscopy. The controls were 323 respiratory symptomatic patients with negative bacilloscopy, from the same health services, such as: ambulatory cases from three referral hospitals and six basic health units responsible for the notifications of new cases of tuberculosis in Salvador, Bahia...
December 22, 2016: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28099649/revista-de-sa%C3%A3%C2%BAde-p%C3%A3%C2%BAblica-50-years-disseminating-the-knowledge-in-nutrition
#16
Rosely Sichieri, Rosangela A Pereira
This work describes and comments on articles in the area of Public Health Nutrition published in Revista de Saúde Pública (RSP - Public Health Journal) from 1967 to 2016. We searched in the PubMed database restricted to the periodical "Revista de Saúde Pública" and using terms related to key topics in the area of Public Health Nutrition. We retrieved 742 articles and, after exclusion of duplicates and articles unrelated to the subject, we analyzed 441 articles, grouped according to subject: dental caries, anemia, hypovitaminosis A, macro/micronutrients, malnutrition, nutritional assessment, overweight/obesity, food consumption, low birthweight, and breastfeeding...
December 22, 2016: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28099631/associations-of-cerebrovascular-metabolism-genotypes-with-neuropsychiatric-symptoms-and-age-at-onset-of-alzheimer-s-disease-dementia
#17
Fabricio F de Oliveira, Elizabeth S Chen, Marilia C Smith, Paulo H Bertolucci
Objective: To study associations of cerebrovascular metabolism genotypes and haplotypes with age at Alzheimer's disease dementia (AD) onset and with neuropsychiatric symptoms according to each dementia stage. Methods: Consecutive outpatients with late-onset AD were assessed for age at dementia onset and Neuropsychiatric Inventory scores according to Clinical Dementia Rating scores, apolipoprotein E gene (APOE) haplotypes, angiotensin-converting enzyme gene (ACE) variants rs1800764 and rs4291, low-density lipoprotein cholesterol receptor gene (LDLR) variants rs11669576 and rs5930, cholesteryl ester transfer protein gene (CETP) variants I422V and TaqIB, and liver X receptor beta gene (NR1H2) polymorphism rs2695121...
January 12, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28099589/which-coronary-lesions-are-more-prone-to-cause-acute-myocardial-infarction
#18
Taner Sen, Mehmet Ali Astarcioglu, Osman Beton, Lale Dinc Asarcikli, Celal Kilit
Background: According to common belief, most myocardial infarctions (MIs) are due to the rupture of nonsevere, vulnerable plaques with < 70% obstruction. Data from recent trials challenge this belief, suggesting that the risk of coronary occlusion is, in fact, much higher after severe stenosis. The aim of this study was to investigate whether or not acute ST-elevation MIs result from high-grade stenoses by evaluating the presence of coronary collateral circulation (CCC). Methods: We retrospectively included 207 consecutive patients who had undergone primary percutaneous coronary intervention for acute ST-elevation MI...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28099586/serotoninergic-modulation-of-basal-cardiovascular-responses-and-responses-induced-by-isotonic-extracellular-volume-expansion-in-rats
#19
Isadora Ferraz Semionatto, Adrieli Oliveira Raminelli, Angelica Cristina Alves, Caroline Santos Capitelli, Rosangela Soares Chriguer
Background: Isotonic blood volume expansion (BVE) induced alterations of sympathetic and parasympathetic activity in the heart and blood vessels, which can be modulated by serotonergic pathways. Objective: To evaluate the effect of saline or serotonergic agonist (DOI) administration in the hypothalamic paraventricular nucleus (PVN) on cardiovascular responses after BVE. Methods: We recorded pulsatile blood pressure through the femoral artery to obtain the mean arterial pressure (MAP), systolic (SBP) and diastolic blood pressure (DBP), heart rate (HR) and the sympathetic-vagal ratio (LF/HF) of Wistar rats before and after they received bilateral microinjections of saline or DOI into the PVN, followed by BVE...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28099408/multiphenotype-association-study-of-patients-randomized-to-initiate-antiretroviral-regimens-in-aids-clinical-trials-group-protocol-a5202
#20
Anurag Verma, Yuki Bradford, Shefali S Verma, Sarah A Pendergrass, Eric S Daar, Charles Venuto, Gene D Morse, Marylyn D Ritchie, David W Haas
BACKGROUND: High-throughput approaches are increasingly being used to identify genetic associations across multiple phenotypes simultaneously. Here, we describe a pilot analysis that considered multiple on-treatment laboratory phenotypes from antiretroviral therapy-naive patients who were randomized to initiate antiretroviral regimens in a prospective clinical trial, AIDS Clinical Trials Group protocol A5202. PARTICIPANTS AND METHODS: From among 5 9545 294 polymorphisms imputed genome-wide, we analyzed 2544, including 2124 annotated in the PharmGKB, and 420 previously associated with traits in the GWAS Catalog...
January 5, 2017: Pharmacogenetics and Genomics
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