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https://www.readbyqxmd.com/read/29350879/genetic-and-chemical-diversity-in-perovskia-abrotanoides-karel-lamiaceae-populations-based-on-issrs-markers-and-essential-oils-profile
#1
Seyyed Hossein Pourhosseini, Javad Hadian, Ali Sonboli, Samad Nejad Ebrahimi, Mohammad Hossein Mirjalili
Genetic and the essential oil composition variability among twelve Perovskia abrotanoides populations (PAbPs) growing wild in Iran were assessed by ISSR markers, GC-FID and GC-MS, respectively. Nine selected ISSR primers produced 119 discernible bands, of them 96 (80.7%) being polymorphic. Genetic similarity values among populations ranged between 0.07 and 0.79 which indicated a high level of genetic variation. Polymorphic information content, resolving power and marker index generated by ISSR primers were, 0...
January 19, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29350028/the-anisotropy-properties-of-electronic-adsorption-and-stability-of-low-index-bivo4-surfaces-for-photoelectrochemical-applications
#2
Jun Hu, Wei Chen, Xin Zhao, Haibin Su, Zhong Chen
Many experimental results reveal different activities among different low-index surfaces of photocatalysts. The current investigation focuses on theoretical understandings of the electronic characteristics, surface activity and stability of different low-index surfaces of BiVO4 towards water splitting using first-principles calculations. The results indicate that BiVO4 has four types of low-index surfaces, namely, the (010)T1, (010)T2, (110)T1, and (1 ̅11)T1. The different band edge potential of the surfaces, resulted from the variation of electrostatic potential, will lead to a higher oxidation ability for the (010)T1 and (010)T2 than (110)T1 and (1 ̅11)T1 surfaces...
January 19, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29317597/preliminary-evidence-for-genetic-overlap-between-body-mass-index-and-striatal-reward-response
#3
T M Lancaster, I Ihssen, L M Brindley, D E Linden
The reward-processing network is implicated in the aetiology of obesity. Several lines of evidence suggest obesity-linked genetic risk loci (such as DRD2 and FTO) may influence individual variation in body mass index (BMI) through neuropsychological processes reflected in alterations in activation of the striatum during reward processing. However, no study has tested the broader hypotheses that (a) the relationship between BMI and reward-related brain activation (measured through the blood oxygenation-dependent (BOLD) signal) may be observed in a large population study and (b) the overall genetic architecture of these phenotypes overlap, an assumption critical for the progression of imaging genetic studies in obesity research...
January 10, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29275498/multivariate-analyses-of-the-effect-of-an-urban-wastewater-treatment-plant-on-spatial-and-temporal-variation-of-water-quality-and-nutrient-distribution-of-a-tropical-mid-order-river
#4
Pedro Ivo Isá Barrenha, Marcel Okamoto Tanaka, Frederico Yuri Hanai, Glaucia Pantano, Gustavo Henrique Moraes, Chubraider Xavier, Almas Taj Awan, Guilherme Martins Grosseli, Pedro Sérgio Fadini, Antonio Aparecido Mozeto
Freshwater resources are increasingly scarce due to human activities, and the understanding of water quality variations at different spatial and temporal scales is necessary for adequate management. Here, we analyze the hypotheses that (1) the presence of a wastewater treatment plant (WWTP) and (2) a polluted tributary that drains downstream from the WWTP change the spatial patterns of physicochemical variables (pH, turbidity, dissolved oxygen, and electrical conductivity) and nutrient concentrations (reactive soluble phosphorus, total phosphorus, nitrogen series, total nitrogen, and total dissolved carbon) along a mid-order river in SE Brazil and that these effects depend on rainfall regime...
December 23, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29262474/-clinical-application-of-electrical-velocimetry-in-monitoring-pediatric-blood-volume-after-cardiopulmonary-bypass
#5
J R Xue, B Li
Objective: To investigate the clinical applicability of electrical velocimetry (EV) in monitoring pediatric blood volume after cardiopulmonary bypass. Method: Between July 2016 and November 2016, 60 children with congenital heart disease were divided into EV group and traditional central venous pressure (CVP) group randomly. For EV group, the volume of fluid and vascular active medicine was adjusted according to the monitoring stroke volume variation (SVV) hemodynamic parameters. Whereas for CVP group empirical volume of fluid infusion was managed by the monitoring traditional hemodynamic parameters such as CVP, blood pressure, heart rate, urine volume and blood gas analysis...
December 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29251491/glycosylation-promotes-random-coil-to-helix-transition-in-a-region-of-a-protist-skp1-associated-with-f-box-binding
#6
Xianzhong Xu, Alexander Eletsky, M Osman Sheikh, James H Prestegard, Christopher M West
Cullin-Ring-Ligases mediate protein polyubiquitination, a signal for degradation in the 26S-proteasome. The CRL1 class consists of Skp1/cullin-1/F-box protein/Rbx1 (SCF) complexes that cyclically associate with ubiquitin-E2 to build the polyubiquitin chain. Within the SCF complex, the 162-amino acid DdSkp1 from Dictyostelium bridges cullin-1 with an F-box protein (FBP), the specificity factor for substrate selection. The hydroxylation-dependent glycosylation of Pro143 of DdSkp1 by a pentasaccharide forms the basis of a novel O2-sensing mechanism in the social amoeba Dictyostelium and other protists...
December 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/29222074/changes-of-oxygen-consumption-and-heart-rate-after-acute-myocardial-infarction-during-6-month-follow-up
#7
Yuri Choe, Jae-Young Han, In-Sung Choi, Hyeng-Kyu Park
BACKGROUND: Exercise intensity is a particularly important determinant of physiological responses to exercise training in patients with acute myocardial infarction. Heart rate (HR) is commonly used as a practical way of prescribing and monitoring exercise as specific intensities based on linear relationship between the percentage of maximum heart rate (%HRmax) and the percentage of maximum oxygen consumption (%VO2max) regardless of age, sex or exercise mode. OBJECTIVE: To examine the change in variability in the correlation between %HRmax and %VO2maxafter acute myocardial infarction...
December 5, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29221272/goal-directed-fluid-restriction-using-stroke-volume-variation-and-cardiac-index-during-one-lung-ventilation-a-randomized-controlled-trial
#8
Hui Xu, Shu-Hua Shu, Di Wang, Xiao-Qing Chai, Yan-Hu Xie, Wei-De Zhou
Background: Goal-directed therapy confers a strong prognosis in patients undergoing major cardiac or noncardiac surgery. The present study investigated whether intraoperative goal-directed fluid restriction (GDFR) using stroke volume variation (SVV) and cardiac index could improve oxygenation and postoperative outcome in patients undergoing one-lung ventilation (OLV). Methods: A Total of 168 patients scheduled for elective thoracoscopic lobectomy under OLV were randomized into the GDFR protocol (group G) or conventional fluid therapy groups (group C)...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29216950/-effect-of-early-enteral-nutrition-standardized-treatment-on-blood-glucose-and-prognosis-in-acute-respiratory-distress-syndrome-patients-with-mechanical-ventilation
#9
Chunmiao Zhong, Chaohui Ji, Zhuquan Dai, Kai Fu, Xiaohong Wen, Huibin Pan
OBJECTIVE: To study the effect of early entreat nutrition (EN) standardized treatment on optimization of blood glucose control and prognosis in acute respiratory distress syndrome (ARDS) patients with mechanical ventilation (MV). METHODS: Forty-two patients with MV of ARDS admitted to Huzhou First Municipal People's Hospital from April 2015 to March 2017 were enrolled. April 1st, 2016 was taken as the time node, the patients treated from April 1st, 2015 to March 31st, 2016 were assigned in the control group (n = 20), while the patients treated from April 1st, 2016 to March 31st, 2017 were included in the experimental group (n = 22)...
December 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29157582/serum-lipid-profile-sleep-disordered-breathing-and-blood-pressure-in-the-elderly-a-10-year-follow-up-of-the-proof-synapse-cohort
#10
Denis Monneret, Jean-Claude Barthélémy, David Hupin, Delphine Maudoux, Sébastien Celle, Emilia Sforza, Frédéric Roche
OBJECTIVES: Dyslipidemia, sleep-disordered breathing (SDB) and hypertension are comorbid factors evidenced in adults, but poorly studied in old people. This study aimed to examine the long-term evolution of the serum lipid profile, and its relationships with SDB and blood pressure (BP) in the elderly. METHODS: A ten-year follow-up of the prospective Prognostic Indicator of Cardiovascular and Cerebrovascular Events (PROOF) and the Autonomic Nervous System Activity, Aging and Sleep Apnea/Hypopnea (SYNAPSE) cohort, which initially included 1011 elderly subjects from the general population, and who were untreated by continuous positive airway pressure (CPAP)...
November 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29140739/cftr-genotype-and-maximal-exercise-capacity-in-cystic-fibrosis-a-cross-sectional-study
#11
Thomas Radtke, Helge Hebestreit, Sabina Gallati, Jane E Schneiderman, Julia Braun, Daniel Stevens, Erik Hj Hulzebos, Tim Takken, Steven R Boas, Don S Urquhart, Larry C Lands, Sergio Tejero, Aleksandar Sovtic, Tiffany Dwyer, Milos Petrovic, Ryan A Harris, Chantal Karila, Daniela Savi, Jakob Usemann, Meir Mei-Zahav, Elpis Hatziagorou, Felix Ratjen, Susi Kriemler
RATIONALE: Cystic fibrosis transmembrane conductance regulator (CFTR) is expressed in human skeletal muscle cells. Variations of CFTR dysfunction among patients with CF may present an important determinant of aerobic exercise capacity in CF. Previous studies on the relationship between CFTR genotype and aerobic exercise capacity are scarce and contradictory. OBJECTIVES: This study was designed to explore factors influencing aerobic exercise capacity, expressed as peak oxygen consumption (VO2peak) with a specific focus on CFTR genotype in children and adults with CF...
November 15, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29123389/alveolar-capillary-reserve-during-exercise-in-patients-with-chronic-obstructive-pulmonary-disease
#12
Mehrdad Behnia, Courtney M Wheatley, Alberto Avolio, Bruce D Johnson
Background: Factors limiting exercise in patients with COPD are complex. With evidence for accelerated pulmonary vascular aging, destruction of alveolar-capillary bed, and hypoxic pulmonary vasoconstriction, the ability to functionally expand surface area during exercise may become a primary limitation. Purpose: To quantify measures of alveolar-capillary recruitment during exercise and the relationship to exercise capacity in a cohort of COPD patients. Methods: Thirty-two subjects gave consent (53% male, with mean ± standard deviation age 66±9 years, smoking 35±29 pack-years, and Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification of 0-4: 2...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29070954/race-predictors-and-hemodynamic-alteration-after-an-ultra-trail-marathon-race
#13
Noppon Taksaudom, Natee Tongsiri, Amarit Potikul, Chawakorn Leampriboon, Apichat Tantraworasin, Anong Chaiyasri
OBJECTIVE: Unique rough-terrain ultra-trail running races have increased in popularity. Concerns regarding the suitability of the candidates make it difficult for organizers to manage safety regulations. The purpose of this study was to identify possible race predictors and assess hemodynamic change after long endurance races. METHODS: We studied 228 runners who competed in a 66 km-trail running race. A questionnaire and noninvasive hemodynamic flow assessment including blood pressure, heart rate, stroke volume, stroke volume variation, systemic vascular resistance, cardiac index, and oxygen saturation were used to determine physiologic alterations and to identify finish predictors...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/29057322/temporal-variation-in-pelagic-food-chain-length-in-response-to-environmental-change
#14
Rocio I Ruiz-Cooley, Tim Gerrodette, Paul C Fiedler, Susan J Chivers, Kerri Danil, Lisa T Ballance
Climate variability alters nitrogen cycling, primary productivity, and dissolved oxygen concentration in marine ecosystems. We examined the role of this variability (as measured by six variables) on food chain length (FCL) in the California Current (CC) by reconstructing a time series of amino acid-specific δ(15)N values derived from common dolphins, an apex pelagic predator, and using two FCL proxies. Strong declines in FCL were observed after the 1997-1999 El Niño Southern Oscillation (ENSO) event. Bayesian models revealed longer FCLs under intermediate conditions for surface temperature, chlorophyll concentration, multivariate ENSO index, and total plankton volume but not for hypoxic depth and nitrate concentration...
October 2017: Science Advances
https://www.readbyqxmd.com/read/29055589/potential-linkage-between-sediment-oxygen-demand-and-pore-water-chemistry-in-weir-impounded-rivers
#15
Mi-Hee Lee, Heon-Jae Jung, Sung-Han Kim, Sung-Uk An, Jung Hyun Choi, Hyo-Jin Lee, In-Ae Huh, Jin Hur
Due to recent weir construction on four major rivers in South Korea, sediment has accumulated in the river bottom near the weirs, which has in turn raised concerns over the quality of overlying water. In this study, the seasonal and spatial variations of sediment oxygen demand (SOD) and the influencing factors were explored using pore water chemistry for the weir-impounded rivers. Muddy and sandy sediment samples were taken from 24 different sites along the four major rivers in summer and autumn, 2016. The SOD was measured in a laboratory based on 10-hour incubation at in situ temperature...
October 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29021987/spatial-variation-in-the-hemoglobin-phase-of-oxygenation-and-deoxygenation-in-the-developing-cortex-of-infants
#16
Gentaro Taga, Hama Watanabe, Fumitaka Homae
Spontaneous low-frequency oscillatory changes in oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) are observed using functional near-infrared spectroscopy (fNIRS). A previous study showed that the time-averaged phase difference between oxy-Hb and deoxy-Hb changes, referred to as hemoglobin phase of oxygenation and deoxygenation (hPod), is sensitive to the development of the cortex. We examined phase-locking index of hPod, referred to as [Formula: see text], in addition to hPod, in neonates and 3- and 6-month-old infants using the 94-channel fNIRS data, which covered large lateral regions of the cortex...
January 2018: Neurophotonics
https://www.readbyqxmd.com/read/28993402/exercise-intolerance-in-heart-failure-with-preserved-ejection-fraction-diagnosing-and-ranking-its-causes-using-personalized-o2-pathway-analysis
#17
Nicholas E Houstis, Aaron S Eisman, Paul P Pappagianopoulos, Luke Wooster, Cole S Bailey, Peter D Wagner, Gregory D Lewis
BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) is a common syndrome with a pressing shortage of therapies. Exercise intolerance is a cardinal symptom of HFpEF, yet its pathophysiology remains uncertain. METHODS: We investigated the mechanism of exercise intolerance in 134 patients referred for cardiopulmonary exercise testing: 79 with HFpEF and 55 controls. We performed cardiopulmonary exercise testing with invasive monitoring to measure hemodynamics, blood gases, and gas exchange during exercise...
January 9, 2018: Circulation
https://www.readbyqxmd.com/read/28974303/water-quality-assessment-of-the-ecologically-stressed-hooghly-river-estuary-india-a-multivariate-approach
#18
Soumita Mitra, Swayambhu Ghosh, Kamala Kanta Satpathy, Bhaskar Deb Bhattacharya, Santosh Kumar Sarkar, Pravakar Mishra, P Raja
Spatio-temporal and seasonal variation of the water quality characteristics of the Hooghly River Estuary, India were studied considering eight stations of diverse eco-hydrological characteristics. Wide variations in turbidity, total dissolved solids and fecal coliform exceeded the permissible BIS drinking water level limit. The estuary is observed to be relatively low-oxygenated, mesotropic and phosphate limiting. Spatial heterogeneity and impact of the southwest monsoon were remarkably pronounced in the distribution of the inorganic nutrients revealing the following values (expressed in μgatml(-1)): nitrate+nitrite (2...
September 30, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28968501/dispersive-optical-activity-of-r-methylene-norbornene-intrinsic-response-and-solvation-effects
#19
Priyanka Lahiri, Kenneth B Wiberg, Patrick H Vaccaro
The dispersive optical activity of a homoconjugated bicyclic diene, (R)-methylene norbornene (R-MNB), was interrogated under complementary vapor-phase and solution-phase conditions to elucidate the structural/electronic provenance of its unusual chiroptical signatures and to explore the marked influence of environmental perturbations. The intrinsic (isolated-molecule) values of specific rotation measured at 355 and 633 nm (1623.5 ± 5.5 and 390.4 ± 3.7 deg dm(-1) (g/mL)(-1)) were found to be factors of 3.9 and 2...
October 13, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28931780/association-between-severity-of-obstructive-sleep-apnea-and-glycated-hemoglobin-level-in-japanese-individuals-with-and-without-diabetes
#20
Hideaki Kurosawa, Yoshifumi Saisho, Koichi Fukunaga, Mizuha Haraguchi, Wakako Yamasawa, Isao Kurihara, Tomoko Betsuyaku, Hiroshi Itoh
Aim of this study was to examine the association between the severity of obstructive sleep apnea (OSA) and dysglycemia in Japanese individuals with and without type 2 diabetes (T2DM). We enrolled 115 individuals diagnosed with OSA with an apnea hypopnea-index (AHI) ≥ 20 in whom continuous positive airway pressure (CPAP) therapy was introduced (N = 115, 44 with T2DM, age 62 ± 11 years, BMI 27.0 ± 4.4 kg/m(2) and AHI median 36.1; interquartile range 27.2-48.1). During admission, the severity of OSA was evaluated by polysomnography, and its association with glycated hemoglobin (HbA1c) level was examined...
September 20, 2017: Endocrine Journal
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