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https://www.readbyqxmd.com/read/28110211/methyl-mercury-but-not-inorganic-mercury-associated-with-higher-blood-pressure-during-pregnancy
#1
Ellen M Wells, Julie B Herbstman, Yu Hong Lin, Joseph R Hibbeln, Rolf U Halden, Frank R Witter, Lynn R Goldman
Prior studies addressing associations between mercury and blood pressure have produced inconsistent findings; some of this may result from measuring total instead of speciated mercury. This cross-sectional study of 263 pregnant women assessed total mercury, speciated mercury, selenium, and n-3 polyunsaturated fatty acids in umbilical cord blood and blood pressure during labor and delivery. Models with a) total mercury or b) methyl and inorganic mercury were evaluated. Regression models adjusted for maternal age, race/ethnicity, prepregnancy body mass index, neighborhood income, parity, smoking, n-3 fatty acids and selenium...
January 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/28108832/beat-by-beat-assessment-of-cardiac-afterload-using-descending-aortic-velocity-pressure-loop-during-general-anesthesia-a-pilot-study
#2
Fabrice Vallée, Arthur Le Gall, Jona Joachim, Olivier Passouant, Joaquim Matéo, Arnaud Mari, Sandrine Millasseau, Alexandre Mebazaa, Etienne Gayat
Continuous cardiac afterload evaluation could represent a useful tool during general anesthesia (GA) to titrate vasopressor effect. Using beat to beat descending aortic pressure(P)/flow velocity(U) loop obtained from esophageal Doppler and femoral pressure signals might allow to track afterload changes. Methods We defined three angles characterizing the PU loop (alpha, beta and Global After-Load Angle (GALA)). Augmentation index (AIx) and total arterial compliance (Ctot) were measured via radial tonometry. Peripheral Vascular Resistances (PVR) were also calculated...
January 20, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28103841/a-two-site-two-arm-34-week-double-blind-parallel-group-randomized-controlled-trial-of-reduced-nicotine-cigarettes-in-smokers-with-mood-and-or-anxiety-disorders-trial-design-and-protocol
#3
Sophia I Allen, Jonathan Foulds, Gladys N Pachas, Susan Veldheer, Corinne Cather, Nour Azzouz, Shari Hrabovsky, Ahmad Hameed, Jessica Yingst, Erin Hammett, Jennifer Modesto, Nicolle M Krebs, Junjia Zhu, Jason Liao, Joshua E Muscat, John Richie, A Eden Evins
BACKGROUND: The U.S. Food and Drug Administration can set standards for cigarettes that could include reducing their nicotine content. Such a standard should improve public health without causing unintended serious consequences for sub-populations. This study evaluates the effect of progressive nicotine reduction in cigarettes on smoking behavior, toxicant exposure, and psychiatric symptoms in smokers with comorbid mood and/or anxiety disorders using a two-site, two-arm, double-blind, parallel group, randomized controlled trial (RCT) in four phases over 34 weeks...
January 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28096584/randomized-controlled-study-comparing-the-hemodynamic-response-to-laryngoscopy-and-endotracheal-intubation-with-mccoy-macintosh-and-c-mac-laryngoscopes-in-adult-patients
#4
Faiza Sulaiman Buhari, Venkatesh Selvaraj
BACKGROUND AND AIMS: Earlier studies have shown that the type of laryngoscope blade influences the degree of hemodynamic response to endotracheal intubation. The aim of the study was to evaluate the hemodynamic response to oral endotracheal intubation with C-MAC laryngoscopy and McCoy laryngoscopy compared to that of Macintosh laryngoscopy in adult patients under general anesthesia. MATERIAL AND METHODS: This is a prospective randomized parallel group study. Ninety American Society of Anesthesiologists I patients were randomly allotted into three groups...
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28095749/obese-adolescents-with-polycystic-ovarian-syndrome-have-elevated-cardiovascular-disease-risk-markers
#5
Sonali S Patel, Uyen Truong, Martina King, Annie Ferland, Kerrie L Moreau, Jennifer Dorosz, John E Hokanson, Hong Wang, Gregory L Kinney, David M Maahs, Robert H Eckel, Kristen J Nadeau, Melanie Cree-Green
Women with polycystic ovarian syndrome (PCOS) have evidence of subclinical cardiovascular disease (CVD). However, insulin resistance, an important factor in the development of CVD in adults, is common in adolescents with PCOS, yet data in adolescents are limited. Therefore, we sought to measure insulin resistance and CVD markers in obese youth with and without PCOS. Thirty-six PCOS and 17 non-PCOS adolescent girls who were obese, sedentary, and non-hypertensive were recruited from clinics located within the Children's Hospital Colorado...
January 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28094515/nanoporous-materials-for-the-onboard-storage-of-natural-gas
#6
K Vasanth Kumar, Kathrin Preuss, Maria-Magdalena Titirici, Francisco Rodríguez-Reinoso
Climate change, global warming, urban air pollution, energy supply uncertainty and depletion, and rising costs of conventional energy sources are, among others, potential socioeconomic threats that our community faces today. Transportation is one of the primary sectors contributing to oil consumption and global warming, and natural gas (NG) is considered to be a relatively clean transportation fuel that can significantly improve local air quality, reduce greenhouse-gas emissions, and decrease the energy dependency on oil sources...
January 17, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28093615/the-open-abdomen-route-by-eurahs-introduction-of-the-data-set-and-initial-results-of-procedures-and-procedure-related-complications
#7
A Willms, F Muysoms, C Güsgen, R Schwab, J Lock, S Schaaf, C Germer, I Richardsen, U Dietz
INTRODUCTION: Open abdomen management has become a well-established strategy in the treatment of serious intra-abdominal pathologies. Key objectives are fistula prevention and high fascial closure rates. The current level of evidence on laparostoma is insufficient. This is due to the rareness of laparostomas, the heterogeneity of study cohorts, and broad diversity of techniques. Collecting data in a standardised, multicentre registry is necessary to draw up evidence-based guidelines. MATERIALS AND METHODS: In order to improve the level of evidence on laparostomy, CAMIN (surgical working group for military and emergency surgery) of DGAV (German Society for General and Visceral Surgery), initiated the implementation of a laparostomy registry...
January 16, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28092096/associations-between-pre-eclampsia-and-protein-c-and-protein%C3%A2-s-levels-among-pregnant-nigerian-women
#8
Helen C Okoye, Lisa I Eweputanna, Anthony O U Okpani, Oseikhuemen A Ejele
OBJECTIVE: To evaluate levels of protein C and free protein S among women with pre-eclampsia, and determine whether there is a relationship between deficiencies and pre-eclampsia. METHODS: A cross-sectional study was conducted at a hospital in Nigeria from July 2013 to March 2014 among 90 pregnant women with pre-eclampsia (blood pressure ≥140/90 mm Hg, proteinuria ≥300 mg in 24 hours) and 90 normotensive pregnant women (control group). Plasma levels of protein C and free protein S were analyzed by enzyme-linked immunosorbent assay, and protein C activity by a chromogenic method...
December 16, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28090291/macrophage-migration-inhibitory-factor-as-a-novel-biomarker-of-portopulmonary-hypertension
#9
Hilary M DuBrock, Josanna M Rodriguez-Lopez, Barbara L LeVarge, Michael P Curry, Paul A VanderLaan, Zsuzsanna K Zsengeller, Elizabeth Pernicone, Ioana R Preston, Paul B Yu, Ivana Nikolic, Dihua Xu, Ravi I Thadhani, Richard N Channick, S Ananth Karumanchi
Portopulmonary hypertension (POPH) is a poorly understood complication of liver disease associated with significant morbidity and mortality. We sought to identify novel biomarkers of POPH disease presence and severity. We performed a prospective, multicenter, case-control study involving patients with liver disease undergoing right heart catheterization. POPH cases were defined as a mean pulmonary arterial pressure (mPAP) ≥25 mmHg and pulmonary vascular resistance (PVR) >240 dynes˙s˙cm(-5). Plasma samples were collected from the systemic and pulmonary circulation, and antibody microarray was used to identify biomarkers...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28081200/fitter-women-did-not-have-attenuated-hemodynamic-responses-to-psychological-stress-compared-with-age-matched-women-with-lower-levels-of-fitness
#10
Sisitha U Jayasinghe, Susan J Torres, Mais Hussein, Steve F Fraser, Gavin W Lambert, Anne I Turner
According to the 'cross stressor adaptation hypothesis', regular exercise acts as a buffer against the detrimental effects of stress. Nevertheless, evidence that higher levels of cardiorespiratory fitness moderate hemodynamic responses to acute psychological stress is inconclusive, especially in women. Women aged 30-50 years (in the mid-follicular phase of the menstrual cycle) with higher (n = 17) and lower (n = 17) levels of fitness were subjected to a Trier Social Stress Test (TSST). Continuous, non-invasive measurements were made of beat-to-beat, systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), stroke volume (SV), cardiac output (CO), left ventricular ejection time (LVET), maximum slope, pulse interval (PI) and total peripheral resistance (TPR)...
2017: PloS One
https://www.readbyqxmd.com/read/28079869/racial-and-social-predictors-of-longitudinal-cervical-measures-the-cervical-ultrasound-study
#11
E W Harville, K S Miller, L R Knoepp
OBJECTIVE: To evaluate whether the racial and socioeconomic disparities are present in adverse cervical parameters, and, if so, when such disparities develop. STUDY DESIGN: A prospective cohort study was conducted. 175 women with a prior preterm birth had up to four endovaginal ultrasounds between gestational weeks 16 and 24 (Cervical Ultrasound Trial of the MFMU). Each sociodemographic factor (race/ethnicity, marital status, insurance funding and education) was examined as a predictor of short cervix or U/funnel shape, using multiple logistic and linear regression...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28076450/time-course-of-changes-in-heart-rate-and-blood-pressure-variability-in-rats-with-myocardial-infarction
#12
R Aires, E B Pimentel, L Forechi, E M Dantas, J G Mill
Our aim was to determine the time course of changes in autonomic balance in the acute (1 and 3 days), sub-acute (7 days) and chronic (28 days) phases of myocardial infarction (MI) in rats. Autonomic balance was assessed by temporal and spectral analyses of blood pressure variability (BPV) and heart rate variability (HRV). Pulsatile blood pressure (BP) recordings (30 min) were obtained in awake and unrestrained male Wistar rats (N = 77; 8-10 weeks old) with MI (coronary ligature) or sham operation (SO). Data are reported as means±SE...
January 9, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28074001/the-family-time-squeeze-perceived-family-time-adequacy-buffers-work-strain-in-certified-nursing-assistants-with-multiple-caregiving-roles
#13
Nicole DePasquale, Jacqueline Mogle, Steven H Zarit, Cassandra Okechukwu, Ellen Ernst Kossek, David M Almeida
PURPOSE OF THE STUDY: This study examined how certified nursing assistants (CNAs) with unpaid family caregiving roles for children ("double-duty-child caregivers"), older adults ("double-duty-elder caregivers"), and both children and older adults ("triple-duty caregivers") differed from their nonfamily caregiving counterparts ("workplace-only caregivers") on four work strain indicators (emotional exhaustion, job satisfaction, turnover intentions, and work climate for family sacrifices)...
January 10, 2017: Gerontologist
https://www.readbyqxmd.com/read/28073506/changes-in-morphological-plasticity-of-ulva-prolifera-under-different-environmental-conditions-a-laboratory-experiment
#14
Guang Gao, Zhihai Zhong, Xianghong Zhou, Juntian Xu
The large-scale green tides, consisting mainly of Ulva prolifera, have invaded the coastal zones of western Yellow Sea each year since 2008, resulting in tremendous impacts on the local environment and economy. A large number of studies have been conducted to investigate the physiological traits of U. prolifera to explain its dominance in the green tides. However, little has been reported regarding the response of U. prolifera to changing environmental factors via morphological variation. In our experiments, we found remarkable morphological acclimation of U...
November 2016: Harmful Algae
https://www.readbyqxmd.com/read/28067364/antiferromagnetic-vs-non-magnetic-%C3%AE%C2%B5-phase-of-solid-oxygen-periodic-density-functional-theory-studies-using-a-localized-atomic-basis-set-and-the-role-of-exact-exchange
#15
A Ramírez-Solís, C M Zicovich-Wilson, R Hernández-Lamoneda, A J Ochoa-Calle
The question of the non-magnetic (NM) vs. antiferromagnetic (AF) nature of the ε phase of solid oxygen is a matter of great interest and continuing debate. In particular, it has been proposed that the ε phase is actually composed of two phases, a low-pressure AF ε1 phase and a higher pressure NM ε0 phase [Crespo et al., Proc. Natl. Acad. Sci. U. S. A., 2014, 111, 10427]. We address this problem through periodic spin-restricted and spin-polarized Kohn-Sham density functional theory calculations at pressures from 10 to 50 GPa using calibrated GGA and hybrid exchange-correlation functionals with Gaussian atomic basis sets...
January 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28064475/administration-of-goji-lycium-chinense-mill-extracts-improves-erectile-function-in-old-aged-rat-model
#16
Hyong Woo Moon, Jung Woo Park, Kyu Won Lee, Hyun Cheol Jeong, Jin Bong Choi, Sae Woong Choi, Woong Jin Bae, Hyuk Jin Cho, U Syn Ha, Sung Hoo Hong, Jeong Ho Geum, Seong Bin Hong, Sae Woong Kim
PURPOSE: This study investigated the effect of goji (Lycium chinense Mill.) on erectile dysfunction in old-aged rats. MATERIALS AND METHODS: Twenty-four 18-month-old male Sprague-Dawley rats (defined as old-aged rats) were used. Treatment groups contained eight rats each: a control group, goji extract of 150 mg/kg/day group, and goji extract of 300 mg/kg/day group. Treatment was by orogastric tube once daily for 6 weeks. After 6 weeks of treatment, testes weight, serum testosterone, superoxide dismutase, nitric oxide (NO)-cyclic guanosine monophosphate (cGMP)-related parameters, intracavernous pressure/mean arterial pressure, and histological changes were examined...
December 22, 2016: World Journal of Men's Health
https://www.readbyqxmd.com/read/28061924/asymptomatic-wolff-parkinson-white-pattern-ecg-in-usaf-aviators
#17
Eddie D Davenport, Karen A N Rupp, Edwin Palileo, Jared Haynes
INTRODUCTION: Wolff-Parkinson-White (WPW) pattern is occasionally found in asymptomatic aviators during routine ECGs. Aeromedical concerns regarding WPW pattern include risk of dysrhythmia or sudden cardiac death (SCD), thus affecting the safety of flight. The purpose of this study was to determine the prevalence and outcomes of aviators with asymptomatic WPW pattern and assess for risk factors that contribute to progression to dysrhythmia or symptoms. METHODS: The U...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28061844/cardiovascular-disease-risk-factors-in-a-nigerian-population-with-impaired-fasting-blood-glucose-level-and-diabetes-mellitus
#18
Victor M Oguoma, Ezekiel U Nwose, Ifeoma I Ulasi, Adeseye A Akintunde, Ekene E Chukwukelu, Phillip T Bwititi, Ross S Richards, Timothy C Skinner
BACKGROUND: Diabetes is a risk factor for cardiovascular diseases (CVDs) and there are reports of increasing prevalence of prediabetes in Nigeria. This study therefore characterised CVDs risk factors in subjects with impaired fasting glucose (IFG) and diabetes. METHODS: Data from 4 population-based cross-sectional studies on 2447 apparently healthy individuals from 18 - 89 years were analysed. Anthropometric, blood pressure and biochemical parameters were collected and classified...
January 6, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28060912/early-fesoterodine-fumarate-administration-prevents-neurogenic-detrusor-overactivity-in-a-spinal-cord-transected-rat-model
#19
Xavier Biardeau, Mikolaj Przydacz, Shachar Aharony, George Loutochin, Lysanne Campeau, Maeva Kyheng, Jacques Corcos
BACKGROUND: In spinal cord injury, onset of detrusor overactivity (DO) is detrimental for quality of life (incontinence) and renal risk. Prevention has only been achieved with complex sophisticated electrical neuromodulation techniques. PURPOSE: To assess the efficacy of early fesoterodine fumarate (FF) administration in preventing bladder overactivity in a spinal cord transected (SCT) rat model. METHODS: 33 Sprague-Dawley rats were allocated to 6 groups-Group 1: 3 normal controls; Group 2: 6 SCT controls; Group 3: 6 SCT rats + FF 0...
2017: PloS One
https://www.readbyqxmd.com/read/28060696/acute-pancreatitis-and-posterior-reversible-encephalopathy-syndrome-a-case-report
#20
Vítor Magno Pereira, Luís Marote Correia, Tiago Rodrigues, Gorete Serrão Faria
The posterior reversible encephalopathy syndrome is a neurological syndrome characterized by headache, confusion, visual disturbances and seizures associated with identifiable areas of cerebral edema on imaging studies. The authors report the case of a man, 33 years-old, leukodermic with a history of chronic alcohol and tobacco consumption, who is admitted to the emergency department for epigastric pain radiating to the back and vomiting with about six hours of evolution and an intense holocranial headache for two hours...
September 2016: Acta Médica Portuguesa
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