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Caroline Charette, Krista L Best, Emma M Smith, William C Miller, François Routhier
Background: Mobility limitations represent the third most prevalent cause of disability, affecting more than 1.9 million community-dwelling Canadians. Walking aids are often prescribed to reduce the impacts of mobility impairments. There are limited data on walking aids since 2004. Objective: The objective of this study was to investigate the prevalence of walking aid use in Canada and to explore demographic characteristics among users of walking aids. Design: The design used was a secondary analysis of a cross-sectional national survey...
March 14, 2018: Physical Therapy
Davis C Woodworth, Langston T Holly, Emeran A Mayer, Noriko Salamon, Benjamin M Ellingson
BACKGROUND: Advanced cervical spondylosis (CS) can cause structural damage to the spinal cord resulting in long-term neurological impairment including neck pain and motor weakness. We hypothesized long-term structural reorganization within the brain in patients with CS. OBJECTIVE: To explore the associations between cortical thickness, subcortical volumes, neurological symptoms, and pain severity in CS patients with or without myelopathy and healthy controls (HCs)...
March 14, 2018: Neurosurgery
Gordon G Wisbach, Joshua Peters, Jenise Leon Guerrero, Nelson Mozzini, Helen Metzger
Introduction: The obesity epidemic in the USA includes active duty service members in the military and effects physical readiness. At the Naval Medical Center San Diego command, the Health & Wellness Department is charged with administering the Weight Management Programs (WMP) for sailors in the San Diego area to ensure military physical readiness requirements. The optimal allocation of personnel and resources to manage these programs is paramount for mission success. We analyzed the cost and effectiveness of the WMPs for the active duty population stationed at Naval Medical Center San Diego (NMCSD) with the intent of offering potential recommendations for program optimization...
March 14, 2018: Military Medicine
Matthew A Psioda, Joseph G Ibrahim
We consider the problem of Bayesian sample size determination for a clinical trial in the presence of historical data that inform the treatment effect. Our broadly applicable, simulation-based methodology provides a framework for calibrating the informativeness of a prior while simultaneously identifying the minimum sample size required for a new trial such that the overall design has appropriate power to detect a non-null treatment effect and reasonable type I error control. We develop a comprehensive strategy for eliciting null and alternative sampling prior distributions which are used to define Bayesian generalizations of the traditional notions of type I error control and power...
March 14, 2018: Biostatistics
Matthew T Koroscil, Andrew Skabelund
Introduction: Blastomyces dermatitidis is a dimorphic fungus endemic to the Mississippi River valley. We describe a rare case of chronic pulmonary blastomycosis complicated by large pulmonary cavitation in a young service member who was misdiagnosed with active pulmonary tuberculosis. Case Presentation: A 25-year-old active duty male presented to his primary care provider with complaints of hemoptysis, fatigue, weight loss, and fever. Computed tomography chest with contrast identified a large cavitary lesion in the right upper lobe (RUL)...
March 14, 2018: Military Medicine
Shana J Kim, Tomasz Huzarski, Jacek Gronwald, Christian F Singer, Pål Møller, Henry T Lynch, Susan Armel, Beth Y Karlan, William D Foulkes, Susan L Neuhausen, Leigha Senter, Andrea Eisen, Charis Eng, Seema Panchal, Tuya Pal, Olufunmilayo Olopade, Dana Zakalik, Jan Lubinski, Steven A Narod, Joanne Kotsopoulos
Background: Although evidence suggests that larger body size in early life confers lifelong protection from developing breast cancer, few studies have investigated the relationship between body size and breast cancer risk among BRCA mutation carriers. Therefore, we conducted a prospective evaluation of body size and the risk of breast cancer among BRCA mutation carriers. Methods: Current height and body mass index (BMI) at age 18 were determined from baseline questionnaires...
March 13, 2018: International Journal of Epidemiology
Belén Pérez-Pevida, Daniela Stefania Trifu, Anna Kamocka, Julia Álvarez Hernández
CONTEXT: Bariatric surgery has beneficial effects on obesity and associated comorbidities such as glycaemic control in type 2 diabetes, dyslipidaemia, hypertension, and renal and hepatic function. Nevertheless, this surgery is not free of complications and possible side effects due to restrictive and/or malabsorptive related components. CASE DESCRIPTION: We report the case of a 60-year-old woman whose past medical history included morbid obesity, hypertension and Scopinaro biliopancreatic diversion (BPD) with duodenal switch in 1998...
March 1, 2018: International Journal of Surgery Case Reports
Jianglou Huang, Jinsong Liu, Kejia Wang, Zhengang Yang, Xiaming Liu
By means of factor analysis approach, a method of molecule classification is built based on the measured terahertz absorption spectra of the molecules. A data matrix can be obtained by sampling the absorption spectra at different frequency points. The data matrix is then decomposed into the product of two matrices: a weight matrix and a characteristic matrix. By using the K-means clustering to deal with the weight matrix, these molecules can be classified. A group of samples (spirobenzopyran, indole, styrene derivatives and inorganic salts) has been prepared, and measured via a terahertz time-domain spectrometer...
March 9, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Erika Obikane, Tomohiro Shinozaki, Daisuke Takagi, Norito Kawakami
BACKGROUND: Childhood abuse is associated with adult suicidal behaviors, partially mediated by mental disorders. However, the direct effect of childhood abuse not mediated by mental disorders is uncertain because the same risk factors serve as mediators and confounders of mental disorders and suicidal behaviors. The aim of the study was to estimate the direct effect of childhood abuse not mediated by mental disorders on suicidal behaviors using marginal structural models. METHODS: We used cross-sectional data of Japanese adults in Tokyo and neighboring prefectures (The Japanese Study on Stratification, Health, Income, and Neighborhood)...
February 22, 2018: Journal of Affective Disorders
Sergio Polakof, Didier Rémond, Jérémie David, Dominique Dardevet, Isabelle Savary-Auzeloux
OBJECTIVES: High-fat high-sucrose diet (HFHS) overfeeding is one of the main factors responsible for the increased prevalence of metabolic disorders. Elevated levels of branched-chain amino acids (BCAAs) have been associated with metabolic dysfunctions, including insulin resistance (IR). The aim of this study was to elucidate whether elevated BCAA levels are the cause or the consequence of IR and to determine the mechanisms and tissues involved in such a phenotype. METHODS: We performed a 2-mo follow-up on minipigs overfed an HFHS diet and focused on kinetics fasting and postprandial (PP) BCAA levels and BCAA catabolism in key tissues...
November 27, 2017: Nutrition
Shelley HuaLei Zhang, Stephan E Maier, Lawrence P Panych
PURPOSE: Magnetic resonance spectroscopic imaging (MRSI), under low-spatial resolution settings, often suffers signal contamination from neighboring voxels due to ringing artifacts. Spatial localization can be improved by constraining the point-spread-function (PSF). Here the effectiveness of the two-dimensional PSF-Choice technique in providing improved spatial localization for MRSI is demonstrated. THEORY AND METHODS: The PSF-Choice technique constrains the PSF to a desired shape by manipulating the weighting of RF excitation pulse throughout phase-encode steps...
March 3, 2018: Journal of Magnetic Resonance
Lisa M Jones, Kimberly J Mitchell, Heather A Turner, Michele L Ybarra
Using a national sample of youth from the U.S., this paper examines incidents of bias-based harassment by peers that include language about victims' perceived sexual orientation, race/ethnicity, religion, weight or height, or intelligence. Telephone interviews were conducted with youth who were 10-20 years old (n = 791). One in six youth (17%) reported at least one experience with bias-based harassment in the past year. Bias language was a part of over half (52%) of all harassment incidents experienced by youth...
March 13, 2018: Journal of Adolescence
Lara M Wierenga, Marieke G N Bos, Elisabeth Schreuders, Ferdi Vd Kamp, Jiska S Peper, Christian K Tamnes, Eveline A Crone
The onset of adolescence in humans is marked by hormonal changes that give rise to secondary sexual characteristics, noted as puberty. It has, however, proven challenging to unravel to what extent pubertal changes may have organizing effects on the brain beyond chronological age, as reported in animal studies. The present longitudinal study aimed to characterize the unique effects of age and puberty on subcortical brain volumes and included three waves of data collection at two-year intervals and 680 T1-weighted MRI scans of 271 participants (54% females) aged between 8 and 29 years old...
March 8, 2018: Psychoneuroendocrinology
Arthur M Lee, Rebecca J Scharf, Mark D DeBoer
OBJECTIVE: The aim of this study was to determine if food insecurity is an independent risk factor for obesity in U.S. children. METHODS: We analyzed data from a nationally representative sample of children participating in the Early Childhood Longitudinal Study-Kindergarten Cohort 2011. Statistical analyses were performed to evaluate longitudinal associations between food security and body mass index (BMI) z-score. All regression models included race/ethnicity, household income, and parental education...
February 5, 2018: Nutrition
Jole Mariella, Eleonora Iacono, Aliai Lanci, Barbara Merlo, Caterina Palermo, Lee Morris, Carolina Castagnetti
The umbilical cord (UC), the connection between mother and fetus via the umbilical vessels, carries nutrients and oxygenated blood to the fetus through the umbilical vein and removes deoxygenated blood and waste products via the umbilical arteries. It is designed to protect blood flow to the fetus during pregnancy. In equine medicine, only a few studies have described the UC, and most of these involved Thoroughbreds. The present study describes and compares the macroscopic features of the equine umbilical cord in three different breeds and in relation to the foal's gender...
March 7, 2018: Theriogenology
Martin Bachmann, Aniko Czetö, Kristin Romanowski, Andreas Vernunft, Monika Wensch-Dorendorf, Petra Wolf, Cornelia C Metges, Annette Zeyner
Postprandial alterations of plasma amino acid (PAA) levels partly reflect a temporal contribution of the feed. How cereal grains affect PAA levels is not known. We hypothesized that a meal of cereal grains causes a temporal increase of PAA, affected by grain species, grain genotype and meal size. Six mares were used in three consecutive trials, receiving four oats, barley and maize genotypes, respectively. Individual grain genotypes were provided as 3 meal sizes corresponding to 1.0, 1.5 or 2.0 g starch/kg body weight...
March 13, 2018: Research in Veterinary Science
Ki-Chul Sung, Mi-Yeon Lee, Jong-Young Lee, Sung-Ho Lee, Jang-Young Kim, Sarah H Wild, Christopher D Byrne
BACKGROUND AND AIMS: It is uncertain whether resolution of fatty liver can improve cardiovascular disease risk factors, independently of changes in body mass index (BMI). Our aim was to test whether resolution of fatty liver is associated with improvements in components of the lipid profile, independently of changes in BMI, and to quantify and compare the magnitude of benefit of resolution of liver fat, and decreases in BMI on the lipid profile. METHODS: 36,195 subjects with fatty liver were studied...
March 8, 2018: Atherosclerosis
Seo Ah Hong, Karl Peltzer, Kyi Tun Lwin, La Seng Aung
BACKGROUND: The aim of the study was to estimate the prevalence of underweight and overweight or obesity and their socio-demographic and lifestyle factors in a female adult population in Myanmar. MATERIAL AND METHODS: In a national cross-sectional population-based survey in the 2015-16 Myanmar Demographic and Health Survey, 12,160 women aged 18-49 years and not currently pregnant completed questionnaires and anthropometric measurements. Nutritional status was determined using Asian body mass index cut-offs: underweight (BMI<18...
2018: PloS One
George Kunnackal John, Lin Wang, Julie Nanavati, Claire Twose, Rajdeep Singh, Gerard Mullin
Dietary alteration of the gut microbiome is an important target in the treatment of obesity. Animal and human studies have shown bidirectional weight modulation based on the probiotic formulation used. In this study, we systematically reviewed the literature and performed a meta-analysis to assess the impact of prebiotics, probiotics and synbiotics on body weight, body mass index (BMI) and fat mass in adult human subjects. We searched Medline (PubMed), Embase, the Cochrane Library and the Web of Science to identify 4721 articles, of which 41 were subjected to full-text screening, yielding 21 included studies with 33 study arms...
March 16, 2018: Genes
Bimala Sharma, Eun Woo Nam
This study aimed to assess the prevalence and correlates of condom use at last sexual intercourse among people aged 15-49 years in Nepal. Secondary data analysis was performed using the Nepal Demographic and Health Survey 2011. The study was restricted to the respondents who reported ever having had sexual intercourse; 9843 females and 3017 males were included. Condom use was assessed by asking if respondents used condoms in their most recent sexual intercourse. Chi-square test and multivariate logistic regression analysis were performed using Complex Sample Analysis Procedure to adjust for sample weight and multistage sampling design...
March 16, 2018: International Journal of Environmental Research and Public Health
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