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https://www.readbyqxmd.com/read/28229949/predicting-reactivity-of-model-dom-compounds-towards-chlorine-with-mediated-electrochemical-oxidation
#1
Glen Andrew de Vera, Wolfgang Gernjak, Jelena Radjenovic
Chlorine demand of a water sample depends on the characteristics of dissolved organic matter (DOM). It is an important parameter for water utilities used to assess oxidant and/or disinfectant consumption of source waters during treatment and distribution. In this study, model compounds namely resorcinol, tannic acid, vanillin, cysteine, tyrosine, and tryptophan were used to represent the reactive moieties of complex DOM mixtures. The reactivity of these compounds was evaluated in terms of Cl2 demand and electron donating capacity (EDC)...
January 23, 2017: Water Research
https://www.readbyqxmd.com/read/28228624/antibacterial-efficacy-of-several-intracanal-medicaments-for-endodontic-therapy
#2
Marta E Valverde, Pilar Baca, Laura Ceballos, M Victoria Fuentes, Matilde Ruiz-Linares, Carmen María Ferrer-Luque
The antibacterial efficacy of intracanal medicaments for 2 and 7 days, in open apex root canals contaminated with Enterococcus faecalis biofilms was compared. One hundred and thirty-eight standardized uniradicular human roots were inoculated with E. faecalis. Colony forming units (CFU) were recorded before and after medication. Samples were divided in two (2/7 days), and subdivided (n=8/group): triple antibiotic paste (TAP); double antibiotic paste (DAP); dental base paste (DBP), consisting of calcium hydroxide, propylene glycol and calcium carbonate; DBP+0...
February 22, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28227971/a-feature-exploration-methodology-for-learning-based-cuffless-blood-pressure-measurement-using-photoplethysmography
#3
Kefeng Duan, Zhiliang Qian, Mohamed Atef, Guoxing Wang, Kefeng Duan, Zhiliang Qian, Mohamed Atef, Guoxing Wang, Zhiliang Qian, Kefeng Duan, Guoxing Wang, Mohamed Atef
In this work, we propose a feature exploration method for learning-based cuffless blood pressure measurement. More specifically, to efficiently explore a large feature space from the photoplethysmography signal, we have applied several analytical techniques, including random error elimination, adaptive outlier removal, maximum information coefficient and Pearson's correlation coefficient based feature assessment methods. We evaluate fifty-seven possible feature candidates and propose three separate feature sets with each containing eleven features to predict the systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean blood pressure (MBP), respectively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227114/photoplethysmography-derivatives-and-pulse-transit-time-in-overnight-blood-pressure-monitoring
#4
Sobhan Salari Shahrbabaki, Beena Ahmed, Thomas Penzel, Dean Cvetkovic, Sobhan Salari Shahrbabaki, Beena Ahmed, Thomas Penzel, Dean Cvetkovic, Sobhan Salari Shahrbabaki, Beena Ahmed, Thomas Penzel, Dean Cvetkovic
Overnight continuous blood pressure measurement provides simultaneous monitoring of blood pressure and sleep architecture. By this means, we are able to investigate whether different sleep events are associated to blood pressure fluctuations. In this paper, we used the Pulse Transit Time (PTT) to develop and evaluate functions for measurement of blood pressure. We focused on the first and second derivatives of fingertip Photoplethysmography (PPG) recordings to detect PPG critical points. By applying R wave of ECG and PPG critical points, we created two PTT-based models for estimation of systolic and diastolic blood pressure (SBP and DBP)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226599/identifying-glaucoma-patients-by-applying-multivariate-analyses-of-cardiovascular-signals
#5
Andreas Voss, Claudia Fischer, Cristina Gonzalez Martinez, Eva Koch, Niklas Plange, Kathleen Kunert, Andreas Voss, Claudia Fischer, Cristina Gonzalez Martinez, Eva Koch, Niklas Plange, Kathleen Kunert, Claudia Fischer, Kathleen Kunert, Niklas Plange, Cristina Gonzalez Martinez, Eva Koch, Andreas Voss
Glaucoma is a disease that damages the eye's optic nerve. However, the exact cause of this optic nerve damage is not yet fully understood. Besides the factors of age, genetics and others, such as obesity, medication and migraines, a vascular dysfunction is believed to be a significant factor leading to glaucoma. This study's objective was to investigate whether these vascular dysfunctions could be recognized by analyzing cardiovascular regulation in glaucoma patients. Linear and nonlinear methods were applied to the extracted heart rate (HR), and systolic/ diastolic blood pressure (DBP) time series to discriminate between 35 healthy controls and 20 glaucoma patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226571/cuff-less-ppg-based-continuous-blood-pressure-monitoring-a-smartphone-based-approach
#6
Aman Gaurav, Maram Maheedhar, Vijay N Tiwari, Rangavittal Narayanan, Aman Gaurav, Maram Maheedhar, Vijay N Tiwari, Rangavittal Narayanan, Maram Maheedhar, Rangavittal Narayanan, Vijay N Tiwari, Aman Gaurav
Cuff-less estimation of systolic (SBP) and diastolic (DBP) blood pressure is an efficient approach for non-invasive and continuous monitoring of an individual's vitals. Although pulse transit time (PTT) based approaches have been successful in estimating the systolic and diastolic blood pressures to a reasonable degree of accuracy, there is still scope for improvement in terms of accuracies. Moreover, PTT approach requires data from sensors placed at two different locations along with individual calibration of physiological parameters for deriving correct estimation of systolic and diastolic blood pressure (BP) and hence is not suitable for smartphone deployment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225859/prevalence-of-metabolic-syndrome-in-pre-and-postmenopausal-women
#7
Ricardo de Marchi, Cátia Millene Dell'Agnolo, Tiara Cristina Romeiro Lopes, Angela Andréia França Gravena, Marcela de Oliveira Demitto, Sheila Cristina Rocha Brischiliari, Deise Helena Pelloso Borghesan, Maria Dalva de Barros Carvalho, Sandra Marisa Pelloso
Objective: The objective of this study was to determine the prevalence of metabolic syndrome (MS) and its components among pre- and postmenopausal women, as well as the association between menopausal status and MS. Materials and methods: A retrospective study was conducted at a reference cardiology outpatient clinic in a city located in Northwestern Paraná State, Brazil. A total of 958 medical records of symptomatic climacteric women evaluated between 2010 and 2014 were analyzed...
February 16, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28225488/association-between-beat-to-beat-blood-pressure-variability-and-vascular-elasticity-in-normal-young-adults-during-the-cold-pressor-test
#8
Yufa Xia, Dan Wu, Zhifan Gao, Xin Liu, Qian Chen, Lijie Ren, Wanqing Wu
The beat-to-beat blood pressure (BP) monitoring parameters, such as average beat-to-beat BP, BP variability (BPV), could have an influence on the vascular elasticity. This study hypothesized that the elevated beat-to-beat BPV could evoke the reduction of the vascular elasticity independent of BP levels. We measured the beat-to-beat BP recordings and total arterial compliance (TAC), which was used to assess the vascular elasticity, in 80 young healthy adults during the cold pressor test (CPT). The CPT included 3 phases: baseline phase, cold stimulus phase, recovery phase...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28224694/the-clinical-relevance-of-orthostatic-hypotension-in-elderly-patients
#9
Laura Hartog, Nanne Kleefstra, Rene Luigies, Sophia de Rooij, Henk Bilo, Kornelis van Hateren
AIM: Orthostatic hypotension (OH) is highly prevalent in old age. The impact of OH on orthostatic complaints and falling is questionable. We wondered if the consensus definition of OH plays an essential role in the accuracy and direction of the prediction of these endpoints. We aimed to explore the relation between different definitions of OH, including relative decrease of blood pressure, and orthostatic complaints and falling. METHODS: A cross-sectional study was performed with 1415 participants aged ≥65 years visiting a mobile fall-prevention team...
February 22, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28222107/transcriptional-response-to-131i-exposure-of-rat-thyroid-gland
#10
Nils Rudqvist, Johan Spetz, Emil Schüler, Toshima Z Parris, Britta Langen, Khalil Helou, Eva Forssell-Aronsson
Humans are exposed to 131I in medical diagnostics and treatment but also from nuclear accidents, and better knowledge of the molecular response in thyroid is needed. The aim of the study was to examine the transcriptional response in thyroid tissue 24 h after 131I administration in rats. The exposure levels were chosen to simulate both the clinical situation and the case of nuclear fallout. Thirty-six male rats were i.v. injected with 0-4700 kBq 131I, and killed at 24 h after injection (Dthyroid = 0.0058-3...
2017: PloS One
https://www.readbyqxmd.com/read/28219804/the-immediate-cardiovascular-response-to-joint-mobilization-of-the-neck-a-randomized-placebo-controlled-trial-in-pain-free-adults
#11
Emmanuel Y Yung, Cheongeun Oh, Michael S Wong, Jason K Grimes, Erica M Barton, Muhammad I Ali, David Cameron
BACKGROUND: Some normotensive patients can have a spike in resting systolic blood pressure (SBP) in response to acute neck pain. Applying the typical dosage of mobilization may potentially result in a sympatho-excitatory response, further increasing resting SBP. Therefore, there is a need to explore other dosage regimens that could result in a decrease in SBP. OBJECTIVES: To compare the blood pressure (BP) and heart rate (HR) response of pain-free, normotensive adults when receiving unilateral posterior-to-anterior mobilization (PA) applied to the neck versus its corresponding placebo (PA-P)...
February 4, 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28217594/effectiveness-of-yoga-program-in-the-management-of-diabetes-using-community-health-workers-in-the-urban-slums-of-bangalore-city-a-non-randomized-controlled-trial
#12
Hemavathi Dasappa, Farah Naaz Fathima, Rugmani Prabhakar
TRIAL DESIGN: Nonrandomized controlled trial. METHODS: Nonrandomized controlled trial. This was an interventional study that was conducted in 4 slums of Bengaluru. Of the 256 diabetes participants, only 109 people agreed to participate in the program. Of 109 people, 52 people agreed to participate in the intervention (agreed to learn and practice Yoga) while the remaining 57 people were assigned to nonintervention group. Randomization and blinding could not be done...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28216671/dual-mechanisms-regulate-the-nucleocytoplasmic-localization-of-human-ddx6
#13
Jo-Hsi Huang, Wei-Chi Ku, Yen-Chun Chen, Yi-Ling Chang, Chia-Ying Chu
DDX6 is a conserved DEAD-box protein (DBP) that plays central roles in cytoplasmic RNA regulation, including processing body (P-body) assembly, mRNA decapping, and translational repression. Beyond its cytoplasmic functions, DDX6 may also have nuclear functions because its orthologues are known to localize to nuclei in several biological contexts. However, it is unclear whether DDX6 is generally present in human cell nuclei, and the molecular mechanism underlying DDX6 subcellular distribution remains elusive...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210499/the-effectiveness-of-slow-stroke-back-massage-on-hospitalization-anxiety-and-physiological-parameters-in-school-age-children-a-randomized-clinical-trial-study
#14
Alia Jalalodini, Manijeh Nourian, Kiarash Saatchi, Amir Kavousi, Mahnaz Ghaljeh
BACKGROUND: The outcomes of hospitalization anxiety are mental health disorders. One of the methods of anxiety reduction is massage, which can cause reduction of pain and changes in physiological parameters. OBJECTIVES: This study aimed to investigate the effects of slow-stroke back massage (SSBM) on hospitalization anxiety and physiological parameters in school-age children. METHODS: This clinical trial study included 80 school-aged children from Ali Ebne Abi Taleb hospital, located in Zahedan, who were selected using sequential sampling and randomly divided into two groups: a massage group (40) and a control group (40)...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28209477/characterizing-the-biological-and-biochemical-profile-of-six-different-scorpion-venoms-from-the-buthidae-and-scorpionidae-family
#15
Sebastian Estrada-Gómez, Lyz Gomez-Rave, Leidy Vargas-Muñoz, Arie van der Meijden
The objective of this study was to characterize a selection of six different scorpion venoms using biological and biochemical methods, including a preliminary MS/MS and a post-translational modifications analysis. Despite the diversity of scorpion species of medical importance in Africa and Colombia, the venoms of these arachnids have been poorly studied in these two regions. We report the biochemical, electrophoretic, chromatographic profile, internal peptide sequences with a post-translational modification report, and a preliminary antitumor activity of five different scorpions of the Buthidae family, Androctonus amoreuxi, Babycurus jacksoni, Grosphus grandidieri, Hottentotta gentili and Tityus fuhrmanni, and one of the Scorpionidae family Pandinus imperator...
February 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28209359/safety-and-efficacy-of-fimasartan-in-mexican-patients-with-grade-1-2-essential-hypertension
#16
Ernesto G Cardona-Muñoz, Agustín López-Alvarado, Ignacio Conde-Carmona, Gerardo Sánchez-Mejorada, Sara Pascoe-González, Ramiro G Banda-Elizondo, Armando García-Castillo, Guillermo González-Gálvez, Raúl G Velasco-Sánchez, Maricela Vidrio-Velázquez, José L Leiva-Pons, Efraín Villeda-Espinosa, Arturo Guerra-López, Ramón M Esturau-Santalo
OBJECTIVE: To evaluate efficacy and safety of 60mg and 120mg Fimasartan (FMS) alone or combined with 12.5mg hydrochlorothiazide (HCTZ) in Mexican population. METHODS: Six month, treat-to-target, open study in subjects with grade 1-2 hypertension. Subjects were initially treated with 60mg FMS once daily; on week 8, those with Diastolic Blood Pressure (DBP) <90mmHg continued on the same FMS dose during the rest of the study while those with DBP ≥90mmHg were randomized to either 120mg FMS or 60mg FMS+12...
February 10, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28208791/impact%C3%A2-of%C3%A2-flavonols%C3%A2-on%C3%A2-cardiometabolic%C3%A2-biomarkers-%C3%A2-a%C3%A2-meta-analysis%C3%A2-of%C3%A2-randomized%C3%A2-controlled%C3%A2-human%C3%A2-trials%C3%A2-to%C3%A2-explore%C3%A2-the%C3%A2-role%C3%A2-of%C3%A2-inter-individual%C3%A2-variability
#17
REVIEW
Regina Menezes, Ana Rodriguez-Mateos, Antonia Kaltsatou, Antonio González-Sarrías, Arno Greyling, Christoforos Giannaki, Cristina Andres-Lacueva, Dragan Milenkovic, Eileen R Gibney Julie Dumont, Manuel Schär, Mar Garcia-Aloy, Susana Alejandra Palma-Duran, Tatjana Ruskovska, Viktorija Maksimova, Emilie Combet, Paula Pinto
Several  epidemiological  studies  have  linked  flavonols  with  decreased  risk  of  cardiovascular  disease  (CVD).  However,  some  heterogeneity  in  the  individual  physiological  responses to the consumption of these compounds has been identified. This meta-analysis aimed to  study the effect of flavonol supplementation on biomarkers of CVD risk such as, blood lipids, blood  pressure and plasma glucose, as well as factors affecting their inter-individual variability...
February 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28206854/the-relationship-between-multidrug-resistance-protein-1-rs1045642-and-cholesterol-24-hydroxylase-rs754203-genes-polymorphism-with-type-2-diabetes-mellitus
#18
Saliha Rizvi, Syed Tasleem Raza, S Riyaz Mehdi, Zeba Siddiqi, Ale Eba, Farzana Mahdi
BACKGROUND: The involvement of genetic factors like gene polymorphisms has been found to contribute significantly to the development and progression of type 2 diabetes (T2DM). Thousands of single nucleotide polymorphisms in various genes have been found to be associated with risk of T2DM. The present study was aimed to investigate association of Multidrug resistance 1 (MDR1) (rs1045642) and CYP46A1 (rs754203) genes polymorphism with T2DM. SUBJECTS & METHODS: Study includes 333 subjects, 183 T2DM cases and 150 healthy controls...
January 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28203279/a-noninvasive-diagnostic-model-to-assess-nonalcoholic-hepatic-steatosis-in-patients-with-chronic-hepatitis-b
#19
Hongjie Ou, Shaohang Cai, Ying Liu, Muye Xia, Jie Peng
OBJECTIVE: The objective of this study was to develop a noninvasive diagnostic test for nonalcoholic hepatic steatosis in patients with chronic hepatitis B (CHB) by using routinely available clinical markers. METHODS: A retrospective study of patients with CHB, with or without hepatic steatosis (fatty change) who were diagnosed with controlled attenuation parameter (CAP) measured by transient elastography were included. Patient information was analyzed on lifestyle; laboratory tests, including serum lipid levels; blood pressure; blood uric acid; and medical history of type 2 diabetes mellitus (T2DM)...
February 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28199792/removal-of-intermediate-aromatic-halogenated-dbps-by-activated-carbon-adsorption-a-new-approach-to-controlling-halogenated-dbps-in-chlorinated-drinking-water
#20
Jingyi Jiang, Xiangru Zhang, Xiaohu Zhu, Yu Li
During chlorine disinfection of drinking water, chlorine may react with natural organic matter (NOM) and bromide ion in raw water to generate halogenated disinfection byproducts (DBPs). To mitigate adverse effects from DBP exposure, granular activated carbon (GAC) adsorption has been considered as one of the best available technologies for removing NOM (DBP precursor) in drinking water treatment. Recently, we have found that many aromatic halogenated DBPs form in chlorination, and they act as intermediate DBPs to decompose and form commonly known DBPs including trihalomethanes and haloacetic acids...
February 15, 2017: Environmental Science & Technology
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