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Heart weight body weight coefficient

Aline Nishizawa, Claudia Kimie Suemoto, Daniela Souza Farias, Fernanda Marinho Campos, Karen Cristina Souza da Silva, Anderson Cuelho, Renata Elaine Paraízo Leite, Renata Eloah de Lucena Ferretti-Rebustini, Lea Tenenholz Grinberg, José Marcelo Farfel, Wilson Jacob-Filho, Carlos Augusto Pasqualucci
INTRODUCTION: Adiposity has been associated with atherosclerosis in clinical studies. However, few autopsy studies have investigated this association, and they had only examined the coronary artery disease. Moreover, most studies had small sample sizes and were limited to middle-aged or young adults. Our aim is to investigate the association between adiposity and systemic atherosclerosis in an autopsy study. METHODS AND ANALYSIS: A sample of 240 deceased with 30 years or more will be evaluated...
2016: Open Heart
Ragna Elise Støre Govatsmark, Sylvi Sneeggen, Hanne Karlsaune, Stig Arild Slørdahl, Kaare Harald Bønaa
BACKGROUND: Disease-specific registers may be used for measuring and improving healthcare and patient outcomes, and for disease surveillance and research, provided they contain valid and reliable data. The aim of this study was to assess the interrater reliability of all variables in a national myocardial infarction register. METHODS: We randomly selected 280 patients who had been enrolled from 14 hospitals to the Norwegian Myocardial Infarction Register during the year 2013...
2016: Clinical Epidemiology
D B Oss, M I Marcondes, F S Machado, T R Tomich, M L Chizzotti, M M Campos, L G R Pereira
The objective of this study was to assess the oxygen pulse and heart rate (O2P-HR) technique using the respiration chamber (RC) and comparative slaughter (CS) methods for measuring the heat production (HP) of crossbred (Holstein × Gyr) yearling bulls. Twenty-four bulls were used. Six bulls were slaughtered at the beginning of the experiment as a reference group to estimate the initial empty body weight (BW) and energy content of the remaining animals. The remaining bulls were assigned to a completely randomized design with 3 levels of dry matter intake, with 6 replicates...
August 17, 2016: Journal of Dairy Science
Delphine Sarafian, Yves Schutz, Jean-Pierre Montani, Abdul G Dulloo, Jennifer L Miles-Chan
Low-intensity physical activity is increasingly promoted as an alternative to sedentary behavior. However, much research to date has focused on moderate- to vigorous-intensity physical activity, and in particular dynamic work, with the effect of low-intensity isometric exercise (<4 METs) on substrate utilization yet to be explored. Here we investigate the effects of such exercise on respiratory quotient (RQ) and determine the extent of intra- and inter-individual variability in response. Energy expenditure, RQ, and substrate oxidation were measured by ventilated-hood indirect calorimetry at rest and in response to standardized, intermittent, low-level isometric leg-press exercises at 5 loads (+5, +10, +15, +20, +25 kg) in 26 healthy, young adults...
September 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Jennifer M Renaud, Kathy Yip, Jean Guimond, Mikaël Trottier, Philippe Pibarot, Eric Turcotte, Conor Maguire, Lucille Lalonde, Karen Y Gulenchyn, Troy H Farncombe, Gerald Wisenberg, Jonathan B Moody, Benjamin C Lee, Steven C Port, Timothy Turkington, Rob S B Beanlands, Robert deKemp
: Three-dimensional (3D) mode imaging is the current standard for positron emission tomography-computed tomography (PET-CT) systems. Dynamic imaging for quantification of myocardial blood flow (MBF) with short-lived tracers, such as Rb-82-chloride (Rb-82), requires accuracy to be maintained over a wide range of isotope activities and scanner count-rates. We propose new performance standard measurements to characterize the dynamic range of PET systems for accurate quantitative imaging...
August 18, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
J M Gentile-Solomon, J A Abbott
INTRODUCTION: We sought to define reference intervals for echocardiographic dimensions of the canine right heart. Secondarily, we intended to describe measurement variability of these dimensions. ANIMALS: Forty-five healthy adult pet dogs of diverse somatotype. MATERIALS AND METHODS: To obtain normative data used to define reference intervals, dogs underwent one echocardiographic examination by the same operator. Raw data were subject to logarithmic (log10) transformation and allometric relationships between body weight and echocardiographic variables were determined; reference intervals intended to include 95% of the population were defined...
September 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
Yingxiao Hua, Fu Wang, Tao Zhang, Huijie Zhang, Wei Chen, Wei Shen, Camilo Fernandez, Emily Harville, Lydia Bazzano, Jiang He, Shengxu Li
Low birth weight is associated with cardiovascular disease and its risk factors in adulthood. However, information is limited regarding its impact on heart rate (HR), an established risk factor for cardiovascular disease. This study assessed the hypothesis that birth weight is associated with HR at rest at different ages. The study sample consisted of 6,282 black and white participants enrolled in the Bogalusa Heart Study, aged 4 to 52 years with a mean age of 19.4 years. HR data at rest were available in 2,344 children (4 to 11 years old), 1,622 adolescents (12 to 19 years old), and 2,316 adults (20 to 52 years old)...
September 15, 2016: American Journal of Cardiology
Brian Quinn, Zak Dauer, Neeta Pandit-Taskar, Heiko Schoder, Lawrence T Dauer
BACKGROUND: Whole body fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) is the standard of care in oncologic diagnosis and staging, and patient radiation dose must be well understood to balance exam benefits with the risk from radiation exposure. Although reference PET/CT patient doses are available, the potential for widely varying total dose prompts evaluation of clinic-specific patient dose. The aims of this study were to use exam-specific information to characterize the radiation dosimetry of PET/CT exams that used two different CT techniques for adult oncology patients and evaluate the practicality of employing an exam-specific approach to dose estimation...
2016: BMC Medical Imaging
I Kvachadze, A Tsibadze, G Sanadiradze, D Mzhavanadze, G Chichinadze
The aim of the study was to evaluate the vegetative regulatory action in healthy, untrained and trained individuals in different geomagnetic conditions. The study involved 94 healthy untrained young men aged 18-22 years - I group (control), and 60 trained volunteers aged 18-25 years - II group, who during the period of the study and for at least three years prior have been following active regular physical exercise regimen(weight lifting), but were not professional athletes. In order to evaluate the heart rate variability the following statistical indicators were studied: arithmetic mean, the arithmetic mean of the error variance, dispersion, the arithmetic mean deviation, coefficient of skewness, kurtosis, standard deviation of the mean...
April 2016: Georgian Medical News
Xiuyuan He, Feng Lin, Yongtao Li, Yuxia Chen, Jing Li, Linlin Guo, Xuelei Han, Huan Song
Effects of lead acetate (LA) on the growth and development of major organs in female mice were studied. Female mice were divided randomly into four treatment groups and one control group. In treatment groups, mice were injected with different concentrations of LA solution every 2 days; whereas control-group mice received equal volumes of sterile normal saline. Body weight (BW) and symptoms were recorded every 2 days. After LA exposure, mice were executed by cervical dislocation and main organs (heart, liver, spleen, lung, kidney) collected for evaluation of morphologic and histologic changes...
June 1, 2016: Biological Trace Element Research
Sunday O Onagbiye, Sarah J Moss, Melainie Cameron
To determine the compliance, barriers, and effects of participation in a 4-week exercise intervention aimed at reducing risk factors for noncommunicable diseases among community-dwelling adults from a low-resourced area of South Africa. An exercise program and associated pre-posttest were performed by 76 participants (men, n = 26 and women, n = 50) aged 35 to 65 years. Baseline and end tests included height, weight, hip and waist circumference, heart rate, blood pressure, glucose, cholesterol, quality of life, and cardiorespiratory fitness measurements...
April 2016: International Quarterly of Community Health Education
Sule Paksu, M Sukru Paksu, Sadriye Ozdemir, Arzu Karli, Mehmet Acikgoz, Ugur Sezgin, Naci Murat
BACKGROUND: This study investigatedthe correlation between spot-check transcutaneous measurements of hemoglobin (Hb) and simultaneously measured venous Hb levels in children. METHODS: Two hundred-seventeen childrenweighing 10-30 kgwhom a complete blood count had been obtained for any reason were enrolled in this study. The demographic characteristics and vital signs of the patients were recorded. Prior to taking blood samples, the transcutaneous Hb level, heart rate, oxygen saturation (SO2 ), and perfusion index (PI) were measured using a probe connected to thesubject'sthumb...
March 31, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
Rosanne J H C G Beijers, Bram van den Borst, Anne B Newman, Sachin Yende, Stephen B Kritchevsky, Patricia A Cassano, Douglas C Bauer, Tamara B Harris, Annemie M W J Schols
BACKGROUND: Both respiratory and nonrespiratory hospitalizations are common and costly events in older individuals with obstructive lung disease. Prevention of any hospitalization in these individuals is essential. We aimed to construct a prediction model for all-cause hospitalization risk in community-dwelling older individuals with obstructive lung disease. METHODS: We studied 268 community-dwelling individuals with obstructive lung disease (defined as FEV1/FVC<LLN) who participated in the observational Health, Aging, and Body Composition Study and constructed a prediction model for 9-year all-cause hospitalization risk using a weighted linear combination based on beta coefficients...
June 1, 2016: Journal of the American Medical Directors Association
Li Chen, Peng Xu, Jinling Diao, Shanshan Di, Ruiting Li, Zhiqiang Zhou
Beta-cypermethrin (BCYP), a synthetic pyrethriod (PYR) pesticide which is a mixture of the alpha- and theta- cypermethrin, have been reported various toxicological profiles to non-target organisms. But little is known about assimilation, accumulation and toxic effects of BCYP in reptiles. The present study firstly elucidated absorption, tissue distribution, excretion of BCYP in Eremias argus . Treated group were administered orally with BCYP 20mg/kg body weight (bw) dissolved in corn oil. Neurotoxicity was observed at 24h after gavage, and the poisoning symptom ameliorated at 72h...
April 5, 2016: Journal of Hazardous Materials
Cássio Leandro Mühe Consentino, Lupe Furtado-Alle, Larissa Rosa da Silva, Wendell Arthur Lopes, Luciane Viater Tureck, Gerusa Einsfeld Milano, Leilane Lazarotto, Cláudia Regina Cavaglieri, Neiva Leite
OBJECTIVE: To determine the influence of polymorphisms of the beta-2 adrenergic receptor (ADRB2) in triggering exercise-induced bronchospasm (EIB) in adolescents. METHODS: The subjects were divided into two groups: present EIB (EIB+) (n=45) and absent EIB (EIB-) (n=115). The bronchial provocation test with exercise was performed with a protocol that consisted of walking/running for at least eight minutes at high intensity, i.e., >85% of maximum heart rate, considering EIB+ as a 10% decrease in forced expiratory volume in one second (FEV1)...
January 2016: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
Massimiliano Cantinotti, Raffaele Giordano, Marco Scalese, Bruno Murzi, Nadia Assanta, Isabella Spadoni, Maura Crocetti, Marco Marotta, Sabrina Molinaro, Shelby Kutty, Giorgio Iervasi
BACKGROUND: Pediatric echocardiographic nomograms for systolic/diastolic functional indices are limited by small sample size and inconsistent methodologies. Our aim was to establish pediatric nomograms for mitral valve (MV) pulsed wave Doppler (PWD) and tissue Doppler imaging (TDI) velocities. METHODS: We performed PWD/TDI measurements of MV velocities and generated models testing for linear/logarithmic/exponential/square root relationships. Heteroscedasticity was accounted for by White test or Breusch-Pagan test...
October 2016: Journal of Cardiology
O Kadri, K Manai, A Alfuraih
The computational voxel phantom 'High-Definition Reference Korean-Man (HDRK-Man)' was implemented into the Monte Carlo transport toolkit Geant4. The voxel model, adjusted to the Reference Korean Man, is 171 cm in height and 68 kg in weight and composed of ∼30 million voxels whose size is 1.981 × 1.981 × 2.0854 mm(3). The Geant4 code is then utilised to compute the dose conversion coefficients (DCCs) expressed in absorbed dose per air kerma free in air for >30 tissues and organs, including almost all organs required in the new recommendation of the ICRP 103, due to a broad parallel beam of monoenergetic photons impinging in antero-postero direction with energy ranging from 10 to 150 keV...
October 13, 2015: Radiation Protection Dosimetry
Xuhong Chang, Yanxin Xie, Jianru Wu, Meng Tang, Bei Wang
In an effort to examine liver, heart and kidney injury, immune response, and other physiological effect in rats caused by intratracheal instillation of nano titanium dioxide (TiO2) for 28 days, we assessed T lymphocytes counts, hematological indices, biochemical parameters, cytokines assay and histopathological changes in nano TiO2 treated rats. Indeed, rats treated with nano TiO2 displayed a reduction in body weight and coefficients of the hearts. Edema and loose cytoplasm on liver cells were found in nano groups...
February 2015: Journal of Nanoscience and Nanotechnology
Lance C Visser, Brian A Scansen, Nicole V Brown, Karsten E Schober, John D Bonagura
OBJECTIVE: To quantify drug-induced changes in right ventricular (RV) systolic function after administration of pimobendan and atenolol. ANIMALS: 80 healthy privately-owned dogs. METHODS: Using a prospective, blinded, fully-crossed study design with randomized drug administration, RV systolic function was determined twice at two time periods; before and 3 h after administration of pimobendan (0.25 mg/kg PO) or atenolol (1 mg/kg PO). Indices of RV systolic function included tricuspid annular plane systolic excursion (TAPSE), fractional area change (FAC), pulsed-wave tissue Doppler-derived systolic myocardial velocity of the lateral tricuspid annulus (S'), and speckle-tracking-derived global longitudinal RV free wall strain and strain rate...
September 2015: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
Yading Yuan, Ming Chao, Ren-Dih Sheu, Kenneth Rosenzweig, Yeh-Chi Lo
PURPOSE: This work aims to develop a robust and efficient method to track the fuzzy borders between liver and the abutted organs where automatic liver segmentation usually suffers, and to investigate its applications in automatic liver segmentation on noncontrast-enhanced planning computed tomography (CT) images. METHODS: In order to track the fuzzy liver-chestwall and liver-heart borders where oversegmentation is often found, a starting point and an ending point were first identified on the coronal view images; the fuzzy border was then determined as a geodesic curve constructed by minimizing the gradient-weighted path length between these two points near the fuzzy border...
July 2015: Medical Physics
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