keyword
MENU ▼
Read by QxMD icon Read
search

IAS

keyword
https://www.readbyqxmd.com/read/28803426/speciation-of-as-%C3%AE-%C3%AE-%C3%AE-as-v-and-total-inorganic-arsenic-in-biological-fluids-using-new-mode-of-liquid-phase-microextraction-and-electrothermal-atomic-absorption-spectrometry
#1
Lida Haghnazari, Nezam Mirzaei, Hossein Arfaeinia, Kamaladdin Karimyan, Hooshmand Sharafi, Nazir Fattahi
In this paper, a new extraction method based on countercurrent liquid-liquid microextraction (CLLME) has been developed for the extraction and preconcentration of inorganic arsenic (iAs) in plasma and urine samples prior to their analysis by electrothermal atomic absorption spectrometry (ETAAS). In this method, firstly, 5 ml of water is added to the extraction vessel. Then 30.0 μl of the extracting solvent is added to it in order for the extracting solvent to be placed in the narrow-necked vessel. In total, 10 ml of a standard solution or a pretreated real sample is added to the sample container and it is connected to the extraction vessel via a connector...
August 12, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28793237/fetal-sex-dependent-genomic-responses-in-the-circulating-lymphocytes-of-arsenic-exposed-pregnant-women-in-new-hampshire
#2
Paige A Bommarito, Elizabeth Martin, Lisa Smeester, Thomas Palys, Emily R Baker, Margaret R Karagas, Rebecca C Fry
Exposure to inorganic arsenic (iAs) during pregnancy is associated with adverse health outcomes present both at birth and later in life. A mechanism may include epigenetic and genomic alteration in fetal genes involved in immune functioning. To investigate the role of the maternal immune response to in utero iAs exposure, we conducted an analysis of immune-related genes in pregnant women from the New Hampshire Birth Cohort Study. A set of 31 genes were identified with altered expression in association with levels of urinary total arsenic, urinary iAs, urinary monomethylated arsenic and urinary dimethylated arsenic...
August 6, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28782264/anal-sphincter-defects-and-faecal-incontinence-15-24-years-after-first-delivery-a-cross-sectional-study
#3
Rodrigo A Guzmán Rojas, Kjell Å Salvesen, Ingrid Volløyhaug
OBJECTIVES: To establish the prevalence of external (EAS) and internal anal sphincter (IAS) defects 15-24 years after childbirth in association to mode of delivery and faecal incontinence (FI), and compare the proportion of obstetric anal sphincter injuries (OASIS) reported at delivery with defects on ultrasound. METHODS: This was a cross-sectional study including 563 women, who delivered their first child from 1990-97. Women responded to a validated questionnaire (PFDI) in 2013-14...
August 6, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28777517/changes-in-pulmonary-function-in-hyperbaric-chamber-inside-attendants-a-case-control-study
#4
Adem Ozdemir, Gunalp Uzun, Turker Turker, Turker Turker, Ergun Ucar, Senol Yildiz
BACKGROUND: Inside attendants (IAs) [are] exposed to high pressure during hyperbaric oxygen (HBO₂) therapy. The aim of this study was to evaluate the alterations of pulmonary functions in IAs over time. METHODS: IAs in our hyperbaric center constituted the IA group (n=11). A sex- and age-matched control group (n=15) was constituted from hospital staff who had not dived or been exposed to hyperbaric environments before. We measured the respiratory function of all subjects at two time points: 1) at the start of the study; and 2) 12 months after the first measurement...
November 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28765026/passive-smoking-is-not-associated-with-risk-of-intracranial-aneurysm-rupture-in-nonsmoking-women
#5
Xin Feng, Luyao Wang, Erkang Guo, Baorui Zhang, Zenghui Qian, Xiaolong Wen, Wenjuan Xu, Youxiang Li, Chuhan Jiang, Zhongxue Wu, Aihua Liu
BACKGROUND: Active smoking is a major risk factor for intracranial aneurysm (IA) rupture (IAR); however, little is known about the effects of passive smoking on IAR. In China, female passive smoking is widespread and severe. This study aimed to assess whether passive smoking is associated with increased risk of IAR among nonsmoking women. METHODS: We enrolled and retrospectively analyzed 385 consecutive female patients with IAs (87 ruptured, 298 unruptured) who were admitted to our center between June 2015 and January 2017...
July 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28762203/power-color-doppler-and-spectral-doppler-ultrasonography-to-evaluate-response-to-intra-articular-steroid-injection-in-knee-joints-in-juvenile-idiopathic-arthritis
#6
Tapas Baikar, Amieleena Chhabra, Tribhuvan Pal Yadav, Namrita Sachdev, Vivek Dewan
OBJECTIVE: To evaluate the role of ultrasonographic indices (Color Fraction and Resistive Index) in assessing the effect of intra-articular steroid (IAS) injection on synovial inflammation in knee joints of Juvenile Idiopathic Arthritis (JIA) patients and to determine the correlation between these ultrasonographic indices and clinical and laboratory parameters in JIA patients after IAS. METHODS: Twenty seven patients of JIA and equal number of age and sex matched healthy controls were enrolled...
July 31, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28759813/high-proportions-of-inorganic-arsenic-in-laminaria-digitata-but-not-in-ascophyllum-nodosum-samples-from-ireland
#7
Jenny M Ronan, Dagmar B Stengel, Andrea Raab, Jörg Feldmann, Linda O'Hea, Edi Bralatei, Evin McGovern
Seaweed can accumulate inorganic arsenic (iAs) from seawater as hydrogen arsenate (HAsO4(2-)) in place of the phosphate anion (HPO4(2-)). While it is rapidly metabolised to organoarsenic species, predominantly arsenosugars and arsenolipids, iAs may be present in seaweed biomass and this poses a potential health concern for consumers of seaweed products. Here, the distribution of total (AsTOT) and iAs was determined in thallus parts of the kelp Laminaria digitata and the intertidal fucoid Ascophyllum nodosum (both Phaeophyceae) using inductively-coupled plasma mass spectrometry (ICP-MS) and high performance liquid chromatography - ICP-MS (HPLC-ICP-MS)...
July 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28755022/interatrial-septum-versus-right-atrial-appendage-pacing-for-prevention-of-atrial-fibrillation-a%C3%A2-meta-analysis-of-randomized-controlled-trials
#8
REVIEW
L Zhang, H Jiang, W Wang, J Bai, Y Liang, Y Su, J Ge
BACKGROUND: Interatrial septum (IAS) pacing seems to be a promising strategy for the prevention of atrial fibrillation (AF); however, studies have yielded conflicting results. This meta-analysis was to compare IAS with right atrial appendage (RAA) pacing on the prevention of postpacing AF occurrence. METHODS: Pubmed, MEDLINE, EMBASE and Web of Science databases were searched through October 2016 for randomized controlled trials comparing IAS with RAA pacing on the prevention of AF...
July 28, 2017: Herz
https://www.readbyqxmd.com/read/28754830/vascular-tissue-type-plasminogen-activator-promotes-intracranial-aneurysm-formation
#9
Paul-Emile Labeyrie, Romain Goulay, Sara Martinez de Lizarrondo, Marie Hébert, Maxime Gauberti, Eric Maubert, Barbara Delaunay, Benjamin Gory, Francesco Signorelli, Francis Turjman, Emmanuel Touzé, Patrick Courthéoux, Denis Vivien, Cyrille Orset
BACKGROUND AND PURPOSE: Although the mechanisms that contribute to intracranial aneurysm (IA) formation and rupture are not totally elucidated, inflammation and matrix remodeling are incriminated. Because tPA (tissue-type plasminogen activator) controls both inflammatory and matrix remodeling processes, we hypothesized that tPA could be involved in the pathophysiology of IA. METHODS: Immunofluorescence analyses of tPA and its main substrate within the aneurysmal wall of murine and human samples were performed...
July 28, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28754179/cognitive-behavioural-therapy-attenuates-the-enhanced-early-facial-stimuli-processing-in-social-anxiety-disorders-an-erp-investigation
#10
Jianqin Cao, Quanying Liu, Yang Li, Jun Yang, Ruolei Gu, Jin Liang, Yanyan Qi, Haiyan Wu, Xun Liu
BACKGROUND: Previous studies of patients with social anxiety have demonstrated abnormal early processing of facial stimuli in social contexts. In other words, patients with social anxiety disorder (SAD) tend to exhibit enhanced early facial processing when compared to healthy controls. Few studies have examined the temporal electrophysiological event-related potential (ERP)-indexed profiles when an individual with SAD compares faces to objects in SAD. Systematic comparisons of ERPs to facial/object stimuli before and after therapy are also lacking...
July 28, 2017: Behavioral and Brain Functions: BBF
https://www.readbyqxmd.com/read/28748000/corrigendum
#11
(no author information available yet)
[This corrects the article DOI: 10.7448/IAS.20.01/21317.].
2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28747444/recurrence-risk-of-ictal-asystole-in-epilepsy
#12
Kevin G Hampel, Roland D Thijs, Christian E Elger, Rainer Surges
OBJECTIVE: To determine the recurrence risk of ictal asystole (IA) and its determining factors in people with epilepsy. METHODS: We performed a systematic review of published cases with IA in 3 databases and additionally searched our local database for patients with multiple seizures simultaneously recorded with ECG and EEG and at least one IA. IA recurrence risk was estimated by including all seizures without knowledge of the chronological order. Various clinical features were assessed by an individual patient data meta-analysis...
July 26, 2017: Neurology
https://www.readbyqxmd.com/read/28735142/bifurcation-location-and-growth-of-aneurysm-size-are-significantly-associated-with-an-irregular-shape-of-unruptured-intracranial-aneurysms
#13
Xin Feng, Baorui Zhang, Erkang Guo, Luyao Wang, Zenguhi Qian, Peng Liu, Xiaolong Wen, Wenjuan Xu, Chuhan Jiang, Youxiang Li, Zhongxue Wu, Aihua Liu
BACKGROUND AND OBJECTIVE: Previous studies firmly proved that an irregular aneurysmal shape was strongly associated with intracranial aneurysm (IA) rupture, but it is unclear how irregularly shaped intracranial aneurysms (IAs) form. We aimed to identify the factors related to irregular shape of IAs. METHOD: We retrospectively analyzed of consecutive patients evaluated or treated for IA at our institution from June 2015 to July 2016. According to the imaging morphology of aneurysm, the enrolled patients are divided into irregular and regular group...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28723871/optimal-anti-retroviral-prophylaxis-in-infants-at-high-risk-of-acquiring-human-immunodeficiency-virus-a-systematic-review
#14
Sara Beste, Shaffiq Essajee, George Siberry, Alisse Hannaford, Jasmeen Dara, Nandita Sugandhi, Martina Penazzato
INTRODUCTION: The risk of perinatal HIV infection can be dramatically reduced through maternal antiretroviral therapy (ART) and infant antiretroviral (ARV) postnatal prophylaxis. The 2013 WHO guidelines recommended four to six weeks of nevirapine or zidovudine as post-natal prophylaxis, with possible extension to 12 weeks for high-risk breastfed infants. A systematic review was undertaken to determine if there is evidence for the WHO to recommend enhanced or extended prophylaxis for high-risk infants...
July 18, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28709971/epigenetic-mechanisms-underlying-the-toxic-effects-associated-with-arsenic-exposure-and-the-development-of-diabetes
#15
REVIEW
Fazlullah Khan, Saeideh Momtaz, Kamal Niaz, Fatima Ismail Hassan, Mohammad Abdollahi
BACKGROUND: Exposure to inorganic arsenic (iAs) is a major threat to the human health worldwide. The consumption of arsenic in drinking water and other food products is associated with the risk of development of type-2 diabetes mellitus (T2DM). The available experimental evidence indicates that epigenetic alterations may play an important role in the development of diseases that are linked with exposure to environmental toxicants. iAs seems to be associated with the epigenetic modifications such as alterations in DNA methylation, histone modifications, and micro RNA (miRNA) abundance...
September 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28689257/fluid-attenuated-inversion-recovery-vascular-hyperintensities-in-predicting-cerebral-hyperperfusion-after-intracranial-arterial-stenting
#16
Chih-Cheng Wan, David Yen-Ting Chen, Ying-Chi Tseng, Feng-Xian Yan, Kun-Yu Lee, Chen-Hua Chiang, Chi-Jen Chen
PURPOSE: No reliable imaging sign predicting cerebral hyperperfusion after intracranial arterial stenting (IAS) had been described in the literature. This study evaluated the effect of fluid-attenuated inversion recovery vascular hyperintensities (FVHs), also called hyperintense vessel sign on T2-weighted fluid-attenuated inversion recovery (T2-FLAIR) MR images, in predicting significant increase in cerebral blood flow (CBF) defined by arterial spin labeling (ASL) after IAS. METHODS: We reviewed ASL CBF images and T2-FLAIR MR images before (D0), 1 day after (D1), and 3 days after (D3) IAS of 16 patients...
August 2017: Neuroradiology
https://www.readbyqxmd.com/read/28688302/effects-of-gait-speed-on-the-body-s-center-of-mass-motion-relative-to-the-center-of-pressure-during-over-ground-walking
#17
Hsuan-Lun Lu, Mei-Ying Kuo, Chu-Fen Chang, Tung-Wu Lu, Shih-Wun Hong
Preferred walking speed (PWS) reflects the integrated performance of the relevant physiological sub-systems, including energy expenditure. It remains unclear whether the PWS during over-ground walking is chosen to optimize one's balance control because studies on the effects of speed on the body's balance control have been limited. The current study aimed to bridge the gap by quantifying the effects of the walking speed on the body's center of mass (COM) motion relative to the center of pressure (COP) in terms of the changes and directness of the COM-COP inclination angle (IA) and its rate of change (RCIA)...
July 5, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28682783/looks-can-be-deceiving-body-image-dissatisfaction-relates-to-social-anxiety-through-fear-of-negative-evaluation
#18
Yada Pawijit, Watcharaphon Likhitsuwan, Jason Ludington, Kullaya Pisitsungkagarn
Introduction Emerging adults are particularly vulnerable to body image dissatisfaction and social anxiety. These bring about a host of negative outcomes, including compromised social adjustment and well-being. Fear of negative evaluation has been shown to be a core element of social anxiety, but it is rarely considered in studies of body image and its effects on social anxiety. This study aimed to bridge this gap by examining the role of fear of negative evaluation in the association between body image dissatisfaction and social anxiety...
July 6, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28681739/molecular-mechanisms-of-the-intracranial-aneurysms-and-their-association-with-the-long-noncoding-ribonucleic-acid-anril-a-review-of-literature
#19
REVIEW
Jiang Che
Long noncoding ribonucleic acids (RNAs) are important regulators of gene expression. Antisense noncoding RNA in the INK4 locus (ANRIL), which was coded on the Chr9p21.3 loci, participates in the pathogenesis of tumor, coronary artery disease, type 2 diabetes mellitus, and other diseases. A genome-wide association study indicated ANRIL to be a candidate gene that may lead to the development of an intracranial aneurysm (IA) formation. However, the detailed molecular mechanisms are unknown and have not been studied...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28681496/transcutaneous-sacral-nerve-stimulation-for-intraoperative-verification-of-internal-anal-sphincter-innervation
#20
D W Kauff, T Moszkowski, C Wegner, A Heimann, K-P Hoffmann, T B Krüger, H Lang, W Kneist
BACKGROUND: The current standard for pelvic intraoperative neuromonitoring (pIONM) is based on intermittent direct nerve stimulation. This study investigated the potential use of transcutaneous sacral nerve stimulation for non-invasive verification of pelvic autonomic nerves. METHODS: A consecutive series of six pigs underwent low anterior rectal resection. For transcutaneous sacral nerve stimulation, an array of ten electrodes (cathodes) was placed over the sacral foramina (S2 to S4)...
July 6, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
keyword
keyword
92427
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"