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A case control study

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https://www.readbyqxmd.com/read/28527376/the-effectiveness-of-cutoff-walls-to-control-saltwater-intrusion-in-multi-layered-coastal-aquifers-experimental-and-numerical-study
#1
Antoifi Abdoulhalik, Ashraf A Ahmed
The objective of this study was to examine the performance of cutoff walls in controlling saltwater intrusion in stratified heterogeneous coastal aquifers. Numerical and laboratory experiments were completed in laboratory-scale aquifer where the effectiveness of cutoff walls was assessed in three different configurations, including a homogeneous scenario, a stratified aquifer with high K-low K-high K pattern (case HLH) and another stratified aquifer with low K-high K-low K pattern (case LHL). The results show that the cutoff wall was effective in reducing the saltwater wedge in all the investigated cases of layered-aquifers with toe length reduction of up to 43%...
May 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28527370/atherosclerotic-dyslipidemia-revealed-by-plasma-lipidomics-on-apoe-mice-fed-a-high-fat-diet
#2
Yanyan Chen, Shiyuan Wen, Miaomiao Jiang, Yan Zhu, Liqin Ding, Hong Shi, Pengzhi Dong, Jing Yang, Yue Yang
BACKGROUND AND AIMS: The pathological process of atherosclerosis is closely related to lipid accumulation at arterial wall caused by lipoproteins transporting lipids through blood. In this study, we investigate the lipid composition in the plasma of apolipoprotein E deficient (ApoE(-/-)) mice fed a high-fat diet to reveal atherosclerosis-induced dyslipidemia. METHODS: ApoE(-/-) and corresponding wild-type C57BL/6J mice were used as the pathology model and control, respectively, and were fed a high-fat or normal diet...
May 11, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28527291/haplotypes-in-ccr5-ccr2-ccl3-and-ccl5-are-associated-with-natural-resistance-to-hiv-1-infection-in-a-colombian-cohort
#3
Jorge A Vega, Simón Villegas-Ospina, Wbeimar Aguilar-Jiménez, María T Rugeles, Gabriel Bedoya, Wildeman Zapata
INTRODUCTION: Variants in genes encoding for HIV-1 co-receptors and their natural ligands have been individually associated to natural resistance to HIV-1 infection. However, the simultaneous presence of these variants has been poorly studied. OBJECTIVE: To evaluate the association of single and multilocus haplotypes in genes coding for the viral co-receptors CCR5 and CCR2, and their ligands CCL3 and CCL5, with resistance or susceptibility to HIV-1 infection. MATERIALS AND METHODS: Nine variants in CCR5-CCR2, two SNPs in CCL3 and two in CCL5 were genotyped by PCR-RFLP in 35 seropositive (cases) and 49 HIV-1-exposed seronegative Colombian individuals (controls)...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527286/-possible-oral-transmission-of-chagas-disease-among-hydrocarbons-sector-workers-in-casanare-colombia-2014
#4
Liliana Patricia Zuleta-Dueñas, Ángela Johana López-Quiroga, Fernando Torres-Torres, Oneida Castañeda-Porras
INTRODUCTION: Trypanosoma cruzi, the etiological agent for Chagas disease, can be transmitted by oral intake of contaminated food or drinks. During epidemiological week 14 of 2014, two cases of acute Chagas disease were notified among hydrocarbons sector workers in Paz de Ariporo, Casanare. OBJECTIVE: To characterize the affected population, to establish control and prevention measures and to confirm the outbreak. MATERIALS AND METHODS: We conducted an outbreak investigation that included the following components: a) Search for symptomatic people compatible with Chagas disease according to the case definition for their referral to medical services; b) entomological survey (192/197 houses); c) sanitary inspection and microbiological analysis of food samples; and d) study of reservoirs...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527266/-risk-factors-associated-with-the-development-of-perinatal-asphyxia-in-neonates-at-the-hospital-universitario-del-valle-cali-colombia-2010-2011
#5
Javier Torres-Muñoz, Christian Rojas, Diana Mendoza-Urbano, Darly Marín-Cuero, Sandra Orobio, Carlos Echandía
INTRODUCTION: Perinatal asphyxia is one of the main causes of perinatal mortality and morbidity worldwide and it generates high costs for health systems; however, it has modifiable risk factors. OBJECTIVE: To identify the risk factors associated with the development of perinatal asphyxia in newborns at Hospital Universitario del Valle, Cali, Colombia. MATERIALS AND METHODS: Incident cases and concurrent controls were examined. Cases were defined as newborns with moderate to severe perinatal asphyxia who were older than or equal to 36 weeks of gestational age, needed advanced resuscitation and presented one of the following: early neurological disorders, multi-organ commitment or a sentinel event...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527255/-oral-mucosa-analog-allografts-in-non-consanguineous-rats
#6
Luis González, Karla Padrón, Siham Salmen, Elsy Jerez, Lorena Dávila, Eduvigis Solórzano
INTRODUCTION: Although there are therapeutic options for the treatment of oral mucosa defects, the need for functional, anatomical and aesthetically similar substitutes persists, as well as for solutions to reduce autologous grafts morbidity. OBJECTIVE: To determine clinical and histological compatibility of equivalent oral mucosa allografts generated through tissue engineering in non-consanguineous rats. MATERIALS AND METHODS: We used a sample of oral mucosa from Sprague Dawley rats to obtain a fibroblast culture and a keratinocytes and fibroblasts co-culture...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527248/-clinical-and-demographic-profile-and-risk-factors-for-clostridium-difficile-infection
#7
Carlos Carvajal, Carlos Pacheco, Fabián Jaimes
INTRODUCTION: Clostridium difficile infection is the leading cause of nosocomial infectious diarrhea. The increasing incidence added to a lower rate of response to the initial treatment and higher rates of relapse has generated a higher burden of the disease. OBJECTIVE: To determine the clinical characteristics of hospitalized patients with C. difficile infection. MATERIALS AND METHODS: We made a nested case-cohort study. We reviewed medical records of the patients with nosocomial diarrhea for whom an assay for toxin A-B of C...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527245/-description-of-mycobacterium-tuberculosis-mutations-conferring-resistance-to-rifampicin-and-isoniazid-detected-by-genotype%C3%A2-mtbdrplus-v-2-in-colombia
#8
Claudia Llerena, Raquel Medina
INTRODUCTION: The GenoType®MTBDRplusV.2 assay is a molecular technique endorsed by the World Health Organization and the Pan American Health Organization that allows for the identification of the Mycobacterium tuberculosis complex and the detection of mutations in the rpoβ gene for rifampicin resistance, and katG and inhA genes for isoniazid resistance. Due to the genetic variability in the circulating strains around the world, the national tuberculosis control programs should assess the performance of these new diagnostic technologies and their use under program conditions as rapid tests...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527226/play-seriously-effectiveness-of-serious-games-and-their-features-in-motor-rehabilitation-a-meta-analysis
#9
Diana Tăut, Sebastian Pintea, Jan-Paul W R Roovers, Miguel-Angel Mañanas, Adriana Băban
BACKGROUND: Evidence for the effectiveness of serious games (SGs) and their various features is inconsistent in the motor rehabilitation field, which makes evidence based development of SGs a rare practice. OBJECTIVE: To investigate the effectiveness of SGs in motor rehabilitation for upper limb and movement/balance and to test the potential moderating role of SGs features like feedback, activities, characters and background. METHODS: We ran a meta-analysis including 61 studies reporting randomized controlled trials (RCTs), controlled trials (CTs) or case series designs in which at least one intervention for motor rehabilitation included the use of SGs as standalone or in combination...
May 19, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28527222/functional-characterization-of-c-terminal-ryanodine-receptor-1-variants-associated-with-central-core-disease-or-malignant-hyperthermia
#10
Remai Parker, Anja H Schiemann, Elaine Langton, Terasa Bulger, Neil Pollock, Andrew Bjorksten, Robyn Gillies, David Hutchinson, Richard Roxburgh, Kathryn M Stowell
BACKGROUND: Central core disease and malignant hyperthermia are human disorders of skeletal muscle resulting from aberrant Ca2+ handling. Most malignant hyperthermia and central core disease cases are associated with amino acid changes in the type 1 ryanodine receptor (RyR1), the skeletal muscle Ca2+-release channel. Malignant hyperthermia exhibits a gain-of-function phenotype, and central core disease results from loss of channel function. For a variant to be classified as pathogenic, functional studies must demonstrate a correlation with the pathophysiology of malignant hyperthermia or central core disease...
May 15, 2017: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/28527213/sorl1-variants-show-different-association-with-early-onset-and-late-onset-alzheimer-s-disease-risk
#11
Guiyou Liu, Jing-Yi Sun, Meiling Xu, Xiao-Yi Yang, Bao-Liang Sun
A recent study sequenced the full coding region of SORL1 in 1,255 early-onset Alzheimer's disease (EOAD) cases and 1,938 control individuals, and investigated the contribution of genetic variability in SORL1 to EOAD risk in a European cohort. This study identified six common variants and five low frequency variants in the SORL1 coding sequence. However, none of these 11 variants was significantly associated with EOAD risk after adjusting for multiple testing. We consider whether these 11 SORL1 variants identified in European EOAD contribute to late-onset Alzheimer's disease (LOAD) risk in individuals of European ancestry...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28527187/quantitative-stereological-analysis-of-the-highly-porous-hydroxyapatite-scaffolds-using-x-ray-cm-and-sem
#12
Justyna Zygmuntowicz, Aneta Zima, Joanna Czechowska, Karol Szlazak, Anna Ślosarczyk, Katarzyna Konopka
BACKGROUND: Material properties of the scaffolds as well as their microstructure are vital in determining in vivo cellular response. Three-dimensional (3D), highly porous scaffolds are used in tissue engineering to provide a suitable microenvironment and to support regeneration of bone. Both pore sizes and their architecture, in particular interconnection density, impact functionality of scaffold during its biomedical applications. OBJECTIVE: In this paper a comparative study of the microstructure of highly porous hydroxyapatite scaffolds produced via gelcasting of foamed slurries and replication of polyurethane sponge were carried out...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28527160/study-of-bone-mineral-density-bmd-in-patients-with-rheumatoid-arthritis-and-its-co-relation-with-severity-of-the-disease
#13
Liyakat Ali Gauri, Qadir Fatima, Sharanbasu Diggi, Asim Khan, Ambreen Liyakat, B R Ajay
INTRODUCTION: Rheumatoid arthritis (RA) is a chronic inflammatory disease of unknown etiology marked by a symmetric, peripheral polyarthritis.1-3 People with rheumatoid arthritis are at increased risk of osteoporosis. Hence this article intends to highlight the importance of BMD measurement in patients with RA as a tool for assessment of disease activity and severity. OBJECTIVE: To evaluate Bone Mineral Density in patients of Rheumatoid Arthritis and Co-relate it with severity of disease...
April 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28527136/factors-influencing-non-albicans-candidemia-a-case-case-control-study
#14
Diamantis P Kofteridis, Antonis Valachis, Dimitra Dimopoulou, Angeliki M Andrianaki, Athanasia Christidou, Sofia Maraki, Nikolaos A Spernovasilis, George Samonis
The study identified factors predisposing to non-albicans candidemia with special interest to prior antimicrobial treatment. A retrospective, case-case-control study was performed at the University Hospital of Heraklion, Greece, from November 2007 through September 2011 including adult patients. The study had three groups. The first included 58 patients with non-albicans candidemia, the second 48 with C. albicans candidemia, while the third (control) 104 without candidemia. Each of the two candidemia groups was compared with the control using multivariate logistic regression model...
May 19, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28527131/impact-of-muscarinic-m3-receptor-antagonism-on-the-risk-of-type-2-diabetes-in-antidepressant-treated-patients-a-case-controlled-study
#15
Yen-Hao Tran, Catharina C M Schuiling-Veninga, Jorieke E H Bergman, Henk Groen, Bob Wilffert
BACKGROUND: M3 muscarinic receptor antagonism has been associated with glucose intolerance and disturbance of insulin secretion. OBJECTIVE: Our objective was to examine the risk of type 2 diabetes mellitus (T2DM) in patients using antidepressants with and without M3 muscarinic receptor antagonism (AD_antaM3 and AD_nonantaM3, respectively). METHODS: We designed a case-control study using a pharmacy prescription database. We selected a cohort of patients who initiated antidepressant use between the ages of 20 and 40 years and who did not receive any anti-diabetic prescriptions at baseline...
May 19, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28527106/a-trans-acting-factor-may-modify-age-at-onset-in-familial-amyloid-polyneuropathy-attrv30m-in-portugal
#16
Miguel Alves-Ferreira, Teresa Coelho, Diana Santos, Jorge Sequeiros, Isabel Alonso, Alda Sousa, Carolina Lemos
Although all familial amyloid polyneuropathy (FAP) ATTRV30M patients carry the same causative mutation, early (<40) and late-onset forms (≥50 years) of FAP may coexist in the same family. However, this variability in age at onset is still unexplained. To identify modifiers closely linked to the TTR locus that may in part be associated with age at onset of FAP ATTRV30M, in particular in a group of very early-onset patients (≤30 years) when compared with late-onset individuals. A clinical genetic study at a referral center comprising a sample of 910 Portuguese individuals includes 589 Val30Met carriers, 102 spouses, and 189 controls from the general population...
May 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28527102/studies-of-environmental-risk-factors-in-amyotrophic-lateral-sclerosis-als-and-a-phase-i-clinical-trial-of-l-serine
#17
Walter G Bradley, R X Miller, T D Levine, E W Stommel, P A Cox
β-N-Methylamino-L-alanine (BMAA) has been linked to Guam ALS/PDC and shown to produce neurodegeneration in vitro and in vivo (Drosophila, mice, rats, primates). BMAA misincorporation into neuroproteins produces protein misfolding and is inhibited by L-serine. Case-control studies in Northern New England indicate that living near to water-bodies with cyanobacterial blooms increases the risk of developing amyotrophic lateral sclerosis (ALS). The distribution of addresses of ALS cases in New Hampshire, Vermont, and Florida was compared to that of controls...
May 19, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28527061/ketogenic-diet-in-migraine-rationale-findings-and-perspectives
#18
Piero Barbanti, Luisa Fofi, Cinzia Aurilia, Gabriella Egeo, Massimiliano Caprio
Ketogenic diet (KD) is an established treatment for refractory pediatric epilepsy and a promising therapy for diverse neurological diseases. Clinical data on KD in migraine-obtained from 150 patients investigated in case reports and prospective studies-suggest that KD may be a rapid onset effective prophylaxis for episodic and chronic migraine. KD would contribute to restore brain excitability and metabolism and to counteract neuroinflammation in migraine, although its precise mechanism is still unclear. Randomized controlled studies are needed to confirm the usefulness of KD in migraine and to investigate its optimal duration, repeatability, feasibility in normal weight subjects, efficacy in pediatric population and association to conventional migraine prophylaxis...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526903/compartmental-tongue-resection-with-submental-island-flap-reconstruction-for-large-carcinoma-of-the-oral-tongue
#19
Sameh Roshdy, Mohamed Elbadrawy, Ashraf Khater, Tamer Fady, Hend A El-Hadaad, Nazem Shams, Hany M Elbarbary
BACKGROUND: Tongue resection is a surgical challenge because of its adverse effects on language articulation, swallowing, respiration, the eventual quality of life, and poor prognosis of advanced disease. To date, the currently accepted standard treatment has been based on excision of the primary lesion with a 1.5-2-cm circumferential macroscopic margin. Compartmental tongue surgery (CTS) is a surgical technique that removes an anatomo-functional compartment containing the primary tumor...
May 19, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28526889/the-contribution-of-an-asthma-diagnostic-consultation-service-in-obtaining-an-accurate-asthma-diagnosis-for-primary-care-patients-results-of-a-real-life-study
#20
R M E Gillis, W van Litsenburg, R H van Balkom, J W Muris, F W Smeenk
Previous studies showed that general practitioners have problems in diagnosing asthma accurately, resulting in both under and overdiagnosis. To support general practitioners in their diagnostic process, an asthma diagnostic consultation service was set up. We evaluated the performance of this asthma diagnostic consultation service by analysing the (dis)concordance between the general practitioners working hypotheses and the asthma diagnostic consultation service diagnoses and possible consequences this had on the patients' pharmacotherapy...
May 19, 2017: NPJ Primary Care Respiratory Medicine
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