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https://www.readbyqxmd.com/read/28527415/trace-bromide-ion-impurity-leads-to-formation-of-chlorobromoaromatic-by-products-in-peroxymonosulfate-based-oxidation-of-chlorophenols
#1
Changling Fang, Zhaohui Wang, Min Feng, Ying Huang, Fei Yang, Jianshe Liu
Trace bromide (Br(-)) released from industrial effluents or brominated compounds is able to directly react with peroxymonosulfate (PMS) to generate a series of reactive oxidants which can oxidize and also halogenate organics. We report the identification and evolution of by-products during 2,4,6-trichlorophenol (TCP) degradation in the presence of PMS and trace Br(-). The influencing factors, including Br(-) concentration and pH, were investigated. The depletion of TCP was accelerated with increasing trace Br(-) concentration (0-0...
May 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28516804/spinal-cord-atrophy-as-a-primary-outcome-measure-in-phase-ii-trials-of-progressive-multiple-sclerosis
#2
Niamh Cawley, Carmen Tur, Ferran Prados, Domenico Plantone, Hugh Kearney, Khaled Abdel-Aziz, Sebastian Ourselin, Claudia Am Gandini Wheeler-Kingshott, David H Miller, Alan J Thompson, Olga Ciccarelli
OBJECTIVES: To measure the development of spinal cord (SC) atrophy over 1 year in patients with progressive multiple sclerosis (PMS) and determine the sample sizes required to demonstrate a reduction in spinal cord cross-sectional area (SC-CSA) as an outcome measure in clinical trials. METHODS: In total, 44 PMS patients (26 primary progressive multiple sclerosis (PPMS), 18 secondary progressive multiple sclerosis (SPMS)) and 29 healthy controls (HCs) were studied at baseline and 12 months...
May 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28512586/cryoablation-for-ventricular-tachycardia-originating-from-anterior-papillary-muscle-of-left-ventricle-guided-by-intracardiac-echocardiography
#3
Ibrahim Marai, Nizar Andria, Osnat Gurevitz
Papillary muscles (PMs) were reported to be origin of ventricular arrhythmia (VA). Radiofrequency (RF) ablation was reported to be acutely effective in eliminating VA. However, the recurrence rate is high. Recently, cryoablation guided by intracardiac echocardiography, 3-dimensional mapping system, and image integration was introduced as alternative strategy for this challenging ablation. We present a case of ventricular tachycardia originating from anterior PM of left ventricle treated by cryoablation guided only by intracardiac echocardiography...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28511055/professional-midwifery-in-guatemala-a-qualitative-exploration-of-perceptions-attitudes-and-expectations-among-stakeholders
#4
Anna Summer, Sylvia Guendelman, Edgar Kestler, Dilys Walker
BACKGROUND: Despite recommendations that women give birth with a skilled birth attendant (SBA), 70% of births in Guatemala occur outside health facilities with informally trained traditional birth attendants (TBAs). To increase SBA in rural, indigenous communities, a professional midwifery school accredited by the government is scheduled to open in 2017. Drawing from Filby's model on barriers to the successful integration of professional midwifery into health systems, this paper aims to identify threats - and facilitators-toward professional midwifery's re-introduction in Guatemala...
May 4, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28507707/nanophase-separated-ni3nb-as-an-automobile-exhaust-catalyst
#5
Toyokazu Tanabe, Tsubasa Imai, Tomoharu Tokunaga, Shigeo Arai, Yuta Yamamoto, Shigenori Ueda, Gubbala V Ramesh, Satoshi Nagao, Hirohito Hirata, Shin-Ichi Matsumoto, Takeshi Fujita, Hideki Abe
Catalytic remediation of automobile exhaust has relied on precious metals (PMs) including platinum (Pt). Herein, we report that an intermetallic phase of Ni and niobium (Nb) (i.e., Ni3Nb) exhibits a significantly higher activity than that of Pt for the remediation of the most toxic gas in exhaust (i.e., nitrogen monoxide (NO)) in the presence of carbon monoxide (CO). When subjected to the exhaust-remediation atmosphere, Ni3Nb spontaneously evolves into a catalytically active nanophase-separated structure consisting of filamentous Ni networks (thickness < 10 nm) that are incorporated in a niobium oxide matrix (i...
May 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28498002/an-observation-study-of-the-clinical-evaluation-of-symptom-relief-and-side-effects-associated-with-taking-ulipristal-acetate-esmya-including-its-effect-on-pre-menstrual-syndrome
#6
Bee F Chen, Martin C Powell, Courtney O'Beirne
This was an observational study investigating the efficacy and side effects associated with ulipristal acetate (UPA), a progesterone receptor modulator, and the possible benefits to women who have co-existing pre-menstrual syndrome (PMS). 80 women returned a questionnaire on the bleeding, menstrual pain and side effects, and changes on PMS were recorded. 67 women (84%) showed improvement in their menses. 54 women (67%) became amenorrhoeic. Of those, 67% were within 10 days of commencing UPA. Menses returned in 33 amenorrhoeic women within 4 weeks of stopping UPA...
May 12, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28490521/survival-in-women-versus-men-following-implantation-of-pacemakers-defibrillators-and-cardiac-resynchronization-therapy-devices-in-a-large-nationwide-cohort
#7
Niraj Varma, Suneet Mittal, Julie B Prillinger, Jeff Snell, Nirav Dalal, Jonathan P Piccini
BACKGROUND: Whether outcomes differ between sexes following treatment with pacemakers (PM), implantable cardioverter defibrillators, and cardiac resynchronization therapy (CRT) devices is unclear. METHODS AND RESULTS: Consecutive US patients with newly implanted PM, implantable cardioverter defibrillators, and CRT devices from a large remote monitoring database between 2008 and 2011 were included in this observational cohort study. Sex-specific all-cause survival postimplant was compared within each device type using a multivariable Cox proportional hazards model, stratified on age and adjusted for remote monitoring utilization and ZIP-based socioeconomic variables...
May 10, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28489941/triboelectric-nanogenerator-enhanced-nanofiber-air-filters-for-efficient-particulate-matter-removal
#8
Guang Qin Gu, Chang Bao Han, Cun Xin Lu, Chuan He, Tao Jiang, Zhen Liang Gao, Cong Ju Li, Zhong Lin Wang
We developed a high-efficiency rotating triboelectric nanogenerator (R-TENG) enhanced polyimide (PI) nanofiber air filter for particulate matter (PM) removal in ambient atmosphere. The PI electrospinning nanofiber film exhibited high removal efficiency for the PMs that have diameters larger than 0.5 μm. When the R-TENG is connected, the removal efficiency of the filter is enhanced, especially when the diameters of PM are smaller than 100 nm. The highest removal efficiency is 90.6% for particles with a diameter of 33...
May 10, 2017: ACS Nano
https://www.readbyqxmd.com/read/28482256/characterization-of-pahs-in-size-fractionated-submicron-atmospheric-particles-and-their-association-with-the-intracellular-oxidative-stress
#9
Qinghua Zhou, Baichen Liu, Yimei Chen, Xiaoqian Han, Xiuzhen Wei, Ying Zhu, Xing Zhou, Jinyuan Chen
The submicron atmospheric particulate matters (PMs), consisting of 7 size-resolved fractions, were collected by two Dekati low pressure impactors from December 2015 to January 2016 in Hangzhou, China. The chemical analysis revealed the higher accumulation efficiency of polycyclic aromatic hydrocarbons (PAHs) in the finer submicron PMs, and 77.0% of particulate PAHs in PM1 were associated with PM0.4. Moreover, the BaP equivalent concentrations (BaPeq) were evaluated for size-fractionated submicron PMs, indicating that 77...
April 29, 2017: Chemosphere
https://www.readbyqxmd.com/read/28481623/does-japanese-citrus-fruit-yuzu-citrus-junos-sieb-ex-tanaka-fragrance-have-lavender-like-therapeutic-effects-that-alleviate-premenstrual-emotional-symptoms-a-single-blind-randomized-crossover-study
#10
Tamaki Matsumoto, Tetsuya Kimura, Tatsuya Hayashi
OBJECTIVE: A majority of menstruating women experience some degree of regular recurrences of diverse symptoms-commonly known as premenstrual syndrome (PMS)-during the days before menstruation. Given the multifactorial etiology of PMS, no single treatment is universally recognized as effective, and many women turn to alternative modalities, including aromatherapy. The present study investigated therapeutic effects on premenstrual symptoms using fragrance from yuzu, a Japanese citrus fruit (Citrus junos Sieb...
May 8, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28480693/factors-determining-800-m-running-performance-in-young-male-athletes
#11
Ramon Cruz, Romulo C de Moraes Bertuzzi, Danilo L Alves, Rafael Azevedo, Phelipe H Cardoso Castro, Jefferson Verbena Freitas, Adriano E Lima-Silva, Fernando R de Oliveira, Jorge R Perrout Lima
BACKGROUND: The aim of the present study was to identify determinant variables on 800-m running performance in young male athletes derived from field tests and biological maturity. METHODS: A total of 89 athletes, aged between 13 and 15 years old, performed a 800-m running trial and a battery of tests which involved anthropometric measurements, a running anaerobic test (RAST), a flexibility test (sit-and-reach), a counter movement jump test and progressive test for aerobic fitness evaluation...
May 5, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28479741/effect-of-naringenin-a-naturally-occurring-flavanone-against-pilocarpine-induced-status-epilepticus-and-oxidative-stress-in-mice
#12
Sheeba Shakeel, Muneeb U Rehman, Nahida Tabassum, Umar Amin, Manzoor Ur Rahman Mir
BACKGROUND: Epilepsy is a disorder of the central nervous system characterized by recurrent seizures. It is a very common disease in which approximately 30% of patients do not respond favourably to treatment with anticonvulsants. Oxidative stress is associated with neuronal damage arising from epileptic seizures. The present study investigated the effects of naringenin in pilocarpine-induced epilepsy in mice. Naringenin, one of the most frequently occurring flavanone in citrus fruits, was evaluated for its shielding effect against the pilocarpine induced behavioural, oxidative and histopathological alterations in rodent model of epilepsy...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28479182/sex-disparity-in-stroke-quality-of-care-in-a-community-based-study
#13
Mollie McDermott, Lynda D Lisabeth, Jonggyu Baek, Eric E Adelman, Nelda M Garcia, Erin Case, Morgan S Campbell, Lewis B Morgenstern, Darin B Zahuranec
BACKGROUND: Studies have suggested that women may receive lower stroke quality of care (QOC) than men, although population-based studies at nonacademic centers are limited. We investigated sex disparities in stroke QOC in the Brain Attack Surveillance in Corpus Christi Project. METHODS: All ischemic stroke patients admitted to 1 of 6 Nueces County nonacademic hospitals between February 2009 and June 2012 were prospectively identified. Data regarding compliance with 7 performance measures (PMs) were extracted from the medical records...
May 4, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28475562/leukocyte-adhesion-as-an-indicator-of-oxygenator-thrombosis-during-extracorporeal-membrane-oxygenation-therapy
#14
Julius Wilm, Alois Philipp, Thomas Müller, Andre Bredthauer, Otto Gleich, Christof Schmid, Karla Lehle
Thrombosis is the most common technical complication with extracorporeal membrane oxygenation (ECMO). Accumulations of leukocytes on the gas exchange membranes within a membrane oxygenator (MO) may initiate thrombosis and influence outcome. MOs (n = 41) were removed routinely from adult patients on ECMO, preserved, and analyzed for their cellular deposits using nuclear (4',6-diamidino-2-phenylindole) and cell type-specific markers (CD45; von Willebrand factor, vWF). The extent of cellular colonization was correlated with patient data...
May 4, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28458114/altered-fractional-amplitude-of-low-frequency-fluctuation-in-premenstrual-syndrome-a-resting-state-fmri-study
#15
Hai Liao, Gaoxiong Duan, Peng Liu, Yanfei Liu, Yong Pang, Huimei Liu, Lijun Tang, Jien Tao, Danhong Wen, Shasha Li, Lingyan Liang, Demao Deng
BACKGROUND: Premenstrual syndrome (PMS) is becoming highly prevalent among female and is characterized by emotional, physical and behavior symptoms. Previous evidence suggested functional dysregulation of female brain was expected to be involved in the etiology of PMS. The aim of present study was to evaluate the alterations of spontaneous brain activity in PMS patients based on functional magnetic resonance imaging (fMRI). METHODS: 20 PMS patients and 21 healthy controls underwent resting-state fMRI scanning during luteal phase...
April 24, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28453929/synthesis-of-lipophilic-core-shell-fe3o4-sio2-au-nanoparticles-and-polymeric-entrapment-into-nanomicelles-a-novel-nanosystem-for-in-vivo-active-targeting-and-magnetic-resonance-photoacoustic-dual-imaging
#16
Ilaria Monaco, Francesca Arena, Stefania Biffi, Erica Locatelli, Barbara Bortot, Francesca La Cava, Giada Maria Marini, Giovanni Maria Severini, Enzo Terreno, Mauro Comes Franchini
In this work, iron/silica/gold core-shell nanoparticles (Fe3O4@SiO2@Au NPs) characterized by magnetic and optical properties have been synthesized to obtain a promising theranostic platform. To improve their biocompatibility, the obtained multilayer nanoparticles have been entrapped in polymeric micelles, decorated with folic acid moieties, and tested in vivo for photoacoustic and magnetic resonance imaging detection of ovarian cancer.
May 17, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28451946/using-phenotype-microarrays-in-the-assessment-of-the-antibiotic-susceptibility-profile-of-bacteria-isolated-from-wastewater-in-on-site-treatment-facilities
#17
Łukasz Jałowiecki, Joanna Chojniak, Elmar Dorgeloh, Berta Hegedusova, Helene Ejhed, Jörgen Magnér, Grażyna Płaza
The scope of the study was to apply Phenotype Biolog MicroArray (PM) technology to test the antibiotic sensitivity of the bacterial strains isolated from on-site wastewater treatment facilities. In the first step of the study, the percentage values of resistant bacteria from total heterotrophic bacteria growing on solid media supplemented with various antibiotics were determined. In the untreated wastewater, the average shares of kanamycin-, streptomycin-, and tetracycline-resistant bacteria were 53, 56, and 42%, respectively...
April 27, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28446195/mature-leaf-concentrate-of-sri-lankan-wild-type-carica-papaya-linn-modulates-nonfunctional-and-functional-immune-responses-of-rats
#18
Chanika Dilumi Jayasinghe, Dinara S Gunasekera, Nuwan De Silva, Kithmini Kawya Mandakini Jayawardena, Preethi Vidya Udagama
BACKGROUND: The leaf concentrate of Carica papaya is a traditionally acclaimed immunomodulatory remedy against numerous diseases; nonetheless comprehensive scientific validation of this claim is limited. The present study thus investigated the immunomodulatory potential of Carica papaya mature leaf concentrate (MLCC) of the Sri Lankan wild type cultivar using nonfunctional and functional immunological assays. METHODS: Wistar rats (N = 6/ group) were orally gavaged with 3 doses (0...
April 26, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28445426/the-effects-of-magnesium-supplementation-on-subjective-anxiety-and-stress-a-systematic-review
#19
REVIEW
Neil Bernard Boyle, Clare Lawton, Louise Dye
BACKGROUND: Anxiety related conditions are the most common affective disorders present in the general population with a lifetime prevalence of over 15%. Magnesium (Mg) status is associated with subjective anxiety, leading to the proposition that Mg supplementation may attenuate anxiety symptoms. This systematic review examines the available evidence for the efficacy of Mg supplementation in the alleviation of subjective measures of anxiety and stress. METHODS: A systematic search of interventions with Mg alone or in combination (up to 5 additional ingredients) was performed in May 2016...
April 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28443697/the-cytokine-hormone-axis-the-link-between-premenstrual-syndrome-and-postpartum-depression
#20
Rebecca Stoner, Victoria Camilleri, Jean Calleja-Agius, Pierre Schembri-Wismayer
Premenstrual syndrome (PMS) and related disorders, and postpartum depression (PPD) can affect women to the extent that their quality of life and that of their near ones can be severely impaired. This review focuses on the different theories regarding the etiologies of PMS and PPD, and attempts to draw a link between the two. Theories focus mainly on hormonal and cytokine factors throughout different phases in the female reproductive cycle. Changes in this symptomatology during pregnancy are also reviewed, as are changes in hormones and cytokine levels...
April 26, 2017: Gynecological Endocrinology
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