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Epidemiology study

H H Liu, X M Gao, Y Li, Y Wu, L Zhou, J Z Mai, M Guo, Z Q Nie, Y Q Ou, Y F Wu, X Q Liu, L C Zhao
Objective: To explore the relationship between overnight urinary sodium to potassium ratio and the risk of cardiovascular disease (CVD). Methods: A subsample of 10 percent of the participants (35-59 years old) from the People's Republic of China-United States Collaborative Study of Cardiovascular and Cardiopulmonary Epidemiology (prospective survey) were used. Three consecutive overnight urine samples were collected in the autumn of 1983-1984 and the spring in 1985-1986, respectively. Urinary sodium and potassium were detected and calculated for 8 hours excretion...
March 24, 2018: Zhonghua Xin Xue Guan Bing za Zhi
Teemu J Niiranen, Mir Henglin, Brian Claggett, Vito M R Muggeo, Elizabeth McCabe, Mohit Jain, Ramachandran S Vasan, Martin G Larson, Susan Cheng
Importance: Given that hypertension remains a leading risk factor for chronic disease globally, there are substantial ongoing efforts to define the optimal range of blood pressure (BP). Objective: To identify a common threshold level above which BP rise tends to accelerate in progression toward hypertension. Design, Setting, and Participants: This longitudinal, community-based epidemiological cohort study of adults enrolled in Framingham, Massachusetts, included 1252 participants (mean [SD] age, 35...
March 21, 2018: JAMA Cardiology
Ana Claudia Sierra Martins, Lélia Souza Silva
OBJECTIVE: To know the epidemiological profile of maternal mortality in Juiz de Fora, a city in the state of Minas Gerais. Data collection was carried out from April to December 2016. METHOD: Summary of a confidential investigation of maternal mortality on deaths occurred from January 1st, 2005 to December 31, 2015. RESULTS: Eighty-five deaths of women residing in Juiz de Fora were identified and analyzed. The age group was between 20 and 36 years...
2018: Revista Brasileira de Enfermagem
Claúdia Mendes da Silva, Regina de Souza Alves, Tâmyssa Simões Dos Santos, Gabriela Rodrigues Bragagnollo, Clodis Maria Tavares, Amuzza Aylla Pereira Dos Santos
OBJECTIVE: To learn the epidemiological characteristics of HIV infection in pregnant women. METHOD: Descriptive study with quantitative approach. The study population was composed of pregnant women with HIV/AIDS residing in the state of Alagoas. Data were organized into variables and analyzed according to the measures of dispersion parameter relevant to the arithmetic mean and standard deviation (X ± S). RESULTS: Between 2007 and 2015, 773 cases of HIV/AIDS were recorded in pregnant women in Alagoas...
2018: Revista Brasileira de Enfermagem
Paulo Roberto Lerias de Almeida, Gabriel Stefani Leão, Charlles David Gonçalves Gonçalves, Rafael Veiga Picon, Cristiane Valle Tovo
BACKGROUND: Spontaneous bacterial peritonitis is a serious complication in cirrhotic patients, and changes in the microbiological characteristics reported in the last years are impacting the choice of antibiotic used for treatment. OBJECTIVE: The aim of the present study is to evaluate the changes in the epidemiology and bacterial resistance of the germs causing spontaneous bacterial peritonitis over three different periods over 17 years. METHODS: All cirrhotic patients with spontaneous bacterial peritonitis and positive culture of ascites fluid were retrospectively studied in a reference Hospital in Southern Brazil...
January 2018: Arquivos de Gastroenterologia
Stefan P W de Vries, Moses Vurayai, Mark Holmes, Srishti Gupta, Michael Bateman, David Goldfarb, Duncan J Maskell, Maitshwarelo Ignatius Matsheka, Andrew J Grant
Campylobacter spp. are a leading cause of bacterial enteritis worldwide, including countries in Africa, and have been identified by the World Health Organisation (WHO) as one of the high priority antimicrobial resistant pathogens. However, at present there is little knowledge on the prevalence, molecular epidemiology or antimicrobial susceptibility of Campylobacter spp. isolates in Botswana, both in patients and in the zoonotic context. Some data indicate that ~14% of diarrhoeal disease cases in a paediatric setting can be ascribed to Campylobacter spp...
2018: PloS One
Narmada Sambaturu, Sumanta Mukherjee, Martín López-García, Carmen Molina-París, Gautam I Menon, Nagasuma Chandra
Genetic differences contribute to variations in the immune response mounted by different individuals to a pathogen. Such differential response can influence the spread of infectious disease, indicating why such diseases impact some populations more than others. Here, we study the impact of population-level genetic heterogeneity on the epidemic spread of different strains of H1N1 influenza. For a population with known HLA class-I allele frequency and for a given H1N1 viral strain, we classify individuals into sub-populations according to their level of susceptibility to infection...
March 21, 2018: PLoS Computational Biology
Naouel Eddaikra, Khatima Ait-Oudhia, Ihcen Kherrachi, Bruno Oury, Farida Moulti-Mati, Razika Benikhlef, Zoubir Harrat, Denis Sereno
BACKGROUND: In Algeria, the treatment of visceral and cutaneous leishmanioses (VL and CL) has been and continues to be based on antimony-containing drugs. It is suspected that high drug selective pressure might favor the emergence of chemoresistant parasites. Although treatment failure is frequently reported during antimonial therapy of both CL and VL, antimonial resistance has never been thoroughly investigated in Algeria. Determining the level of antimonial susceptibility, amongst Leishmania transmitted in Algeria, is of great importance for the development of public health policies...
March 21, 2018: PLoS Neglected Tropical Diseases
Carlos Arturo Alvarez-Moreno, Jorge Alberto Cortes, David W Denning
Data with respect to the epidemiological situation of fungal diseases in Colombia is scarce. Thus, the aim of this study is to estimate the burden of fungal infections. A population projection for 2017 from the Colombian Department for National Statistics was used, as well as official information from the Ministry of Health and National Institute of Health. A bibliographical search for Colombian data on mycotic diseases and population at risk (chronic obstructive pulmonary disease, HIV infection/AIDS, cancer, and transplant patients) was done...
March 21, 2018: Journal of Fungi (Basel, Switzerland)
Dayna A Johnson, Roland J Thorpe, John A McGrath, W Braxton Jackson, Chandra L Jackson
Housing environments can directly and indirectly affect sleep, and blacks are more likely than whites to live in suboptimal housing conditions, which may independently contribute to sleep disparities. However, few large-scale epidemiological studies consider the potential influence of housing type on sleep health. Using data from the 2004-2015 National Health Interview Survey, we investigated overall and Black-White differences in the association between housing type (house/apartment versus mobile home/trailer) and sleep duration as well as sleep difficulties among 226,208 adults in the U...
March 21, 2018: International Journal of Environmental Research and Public Health
Joseph Ting, Ashley Roberts, Anne Synnes, Roderick Canning, Jaya Bodani, Luis Monterossa, Prakesh S Shah
BACKGROUND: Neonatal fungaemia is associated with adverse neonatal outcomes and higher overall healthcare expenditure. Our objective is to review the epidemiology of invasive fungal infections (IFIs) in neonates in Canada. METHODS: A retrospective cohort study using data collected by the Canadian Neonatal Network (CNN) was conducted. Using a nested matched cohort study design, risk factors and outcomes of neonates born <33 weeks gestation (n=39,305) during 2003-2013 were compared between neonates diagnosed with an IFI during their stay to infection-free controls...
March 15, 2018: Pediatric Infectious Disease Journal
Aiessa Fedrigo, Thelma L Skare, André Luiz Bortoluzzi, Renato Nisihara
OBJECTIVES: The majority of scleroderma (SSc) patients present gastrointestinal involvement. Motility is usually compromised but few studies address permeability changes in the intestinal wall. ASCA (anti-Saccharomyces cerevisiae antibodies) positivity is associated with increased intestinal permeability. In this study we aimed to investigate ASCA positivity in SSc patients and its association with clinical, serological and epidemiological data. METHODS: Seventy-four SSc patients and 57 healthy controls were studied for ASCA (IgG and IgA) positivity by ELISA...
March 21, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
Steven Lam, Giang Pham, Hung Nguyen-Viet
Background Agricultural intensification is having profound impacts on food security and rural livelihoods; however, concerns remain about the potential implications on public health. Objectives We aim to examine and synthesize the evidence for human health risks of agricultural intensification in Southeast Asia. Methods We conducted a systematic review of peer-reviewed articles published between January 2000 and December 2015 from two electronic databases (PubMed, CAB Direct). Results A total of 73 relevant studies were included and evaluated...
March 21, 2018: International Journal of Occupational and Environmental Health
Robert F Pass, Ravit Arav-Boger
Congenital cytomegalovirus infection is a major cause of central nervous system and sensory impairments that affect cognition, motor function, hearing, language development, vestibular function, and vision. Although the importance of congenital cytomegalovirus infection is readily evident, the vast majority of maternal and fetal infections are not identified, even in developed countries. Multiple studies of prenatal cytomegalovirus infections have produced a body of knowledge that can inform the clinical approach to suspected or proven maternal and fetal infection...
2018: F1000Research
Somayyeh Khazaeian, Nourossadat Kariman, Abbas Ebadi, Malihe Nasiri
Background and aim: Social capital and social support as determinants of health play an important role in the health of female heads of households. Considering the increasing number of female-headed families in Iran and the world, this study was conducted to systematically review the impact of social capital and social support on the health of female heads of households. Methods: This study was conducted as a systematic review in September 2016. Its data were collected from available papers in different databases including Iranmedex, Magiran, Scientific Information Database (SID), Irandoc, Scopus, Science Direct, PubMed and Google Scholar...
December 2017: Electronic Physician
Richard Bwanika, Charles D Kato, Johnson Welishe, Daniel C Mwandah
Background: Malaria and helminths share the same geographical distribution in tropical Africa. Studies of the interaction of helminth and malaria co-infection in humans have been few and are mainly epidemiological, with little information on cellular immune responses. This study aimed to determine Cytokine profiles among patients co-infected with Plasmodium falciparum malaria and soil borne helminth attending Kampala International University Teaching Hospital (KIU). Methods: A case control study of 240 patients were recruited at KIU teaching hospital...
2018: Allergy, Asthma, and Clinical Immunology
Xiaochen Huang, Shengqi Dong, Jie Zhen, Huiqiang Zhang, Tong Lin, Yuhong Zeng, Nicholas Van Halm-Lutterodt, Linhong Yuan
Background: Epidemiology studies have indicated an association of apolipoprotein E (ApoE) genetic polymorphism and circulating steroid hormone levels with the risk of Alzheimer's disease. The established physiologic relationship between apolipoproteins and steroid hormone indicate an important role of ApoE polymorphism in impacting the relationship between serum steroid hormones and cognition in the elderly. Study design: A total of 500 Chinese adults aged between 50 and 75 participated in this community-based cross-sectional study...
2018: Frontiers in Endocrinology
Steven A Harris, Elizabeth A Harris
This review focuses on research in the areas of epidemiology, neuropathology, molecular biology and genetics that implicates herpes simplex virus type 1 (HSV-1) as a causative agent in the pathogenesis of sporadic Alzheimer's disease (AD). Molecular mechanisms whereby HSV-1 induces AD-related pathophysiology and pathology, including neuronal production and accumulation of amyloid beta (Aβ), hyperphosphorylation of tau proteins, dysregulation of calcium homeostasis, and impaired autophagy, are discussed. HSV-1 causes additional AD pathologies through mechanisms that promote neuroinflammation, oxidative stress, mitochondrial damage, synaptic dysfunction, and neuronal apoptosis...
2018: Frontiers in Aging Neuroscience
Lucas Morin, Kristina Johnell, Marie-Laure Laroche, Johan Fastbom, Jonas W Wastesson
Objective: Polypharmacy is the concomitant use of several drugs by a single person, and it increases the risk of adverse drug-related events in older adults. Little is known about the epidemiology of polypharmacy at the population level. We aimed to measure the prevalence and incidence of polypharmacy and to investigate the associated factors. Methods: A prospective cohort study was conducted using register data with national coverage in Sweden. A total of 1,742,336 individuals aged ≥65 years at baseline (November 1, 2010) were included and followed until death or the end of the study (December 20, 2013)...
2018: Clinical Epidemiology
Zehuai Wen, Jia Wei, Huiling Xue, Yunqin Chen, David Melnick, Jesus Gonzalez, Judith Hackett, Xiaoyan Li, Zhaolong Cao
Background: The etiology, epidemiology, treatment patterns, and clinical outcomes of neonatal and pediatric pneumonia patients in China are not well reported. This retrospective chart review study aimed to describe such information among neonatal (0 to 27 days) and pediatric (28 days to <18 years) pneumonia patients in two regions of China. Methods: Electronic medical records of pneumonia hospitalizations (aged <18 years) admitted between 2008 and 2013 from four hospitals under Guangdong Provincial Hospital of Chinese Medicine (Southern China) and between 2010 and 2014 at Peking University People's Hospital (Beijing, Northern China) were reviewed...
2018: Therapeutics and Clinical Risk Management
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