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https://www.readbyqxmd.com/read/28428470/effects-of-valsalva-maneuver-by-different-breath-holding-techniques-to-detect-pulmonary-thromboembolism-in-a-contrast-enhanced-computed-tomography-examination
#1
Chiaki Suzuki, Kenji Fujisaki, Yuusuke Atsumi, Miki Takemura, Kouichi Mizuno, Takeki Nagamine, Tomoyasu Amano, Hideo Yamamoto, Mamoru Takahashi
The purpose of this study is to measure the hemodynamics on the effect of Valsalva maneuver aiming at pulmonary thromboembolism (PTE) using 2-dimensional (2D) phase contrast imaging of magnetic resonance image (MRI), Philips Ingenia 3.0-tesla (T). The maximal inspiration reduced the blood flow rate in various degrees at all measurement positions, superior vena cava (SVC), inferior vena cava (IVC), pulmonary artery (PA), ascending aorta (AA), and descending aorta (DA). This result suggests that the contrast effect in the PA might become weak during general PA phase to give a substantial influence of Valsalva maneuver in the condition after maximum inspiration...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28421553/microwave-ablation-of-malignant-renal-tumours-intermediate-term-results-and-usefulness-of-renal-and-mrenal-scores-for-predicting-outcomes-and-complications
#2
Anna Maria Ierardi, Alessio Puliti, Salvatore Alessio Angileri, Mario Petrillo, Ejona Duka, Chiara Floridi, Michela Lecchi, Gianpaolo Carrafiello
The aim of this study was to evaluate intermediate-term results after microwave ablation (MWA) of renal tumours and determine the association of RENAL and modified RENAL (mRENAL) scores with oncological outcomes and complications. In May 2008-September 2014, 58 patients affected by early-stage RCC (renal cell carcinoma; T1a or T1b) were judged unsuitable for surgery and treated with percutaneous MWA. Follow-up was performed with contrast-enhanced computed tomography at 1, 3, 6, 12 and 24 months after the procedure...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28406625/large-positive-thermal-expansion-and-small-band-gap-in-double-reo3-type-compound-nasbf6
#3
C Yang, B Y Qu, S S Pan, L Zhang, R R Zhang, P Tong, R C Xiao, J C Lin, X G Guo, K Zhang, H Y Tong, W J Lu, Y Wu, S Lin, W H Song, Y P Sun
Double-ReO3-type structure compound NaSbF6 undergoes a low-temperature rhombohedral to high-temperature cubic phase between 303 and 323 K, as revealed by temperature-dependent X-ray diffractions. Although many double-ReO3-type fluorides exhibit either low thermal expansion or negative thermal expansion (NTE), NaSbF6 exhibits positive thermal expansion (PTE) with a large volumetric coefficient of thermal expansion, αv = 62 ppm/K, in its cubic phase. Raman spectroscopy reveals that the low-frequency transverse vibration of fluorine atoms is stiffened in NaSbF6, compared with the typical NTE compound CaZrF6 with the same structure...
April 13, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28403474/smoking-in-pregnancy-and-fetal-growth-the-case-for-more-intensive-assessment
#4
Shannon Shisler, Rina D Eiden, Danielle S Molnar, Pamela Schuetze, Marilyn Huestis, Gregory Homish
Introduction: Many studies on prenatal tobacco exposure (PTE) effects have relied on single item retrospective measures of PTE. However, it is unclear how these single item measures may relate to more intensive maternal self-reports and to biological markers of maternal use and/or fetal exposure. It is also unclear whether these measures may be more valid predictors of fetal growth (gestational age, birthweight, head circumference, and birth length). Methods: Data were obtained from 258 women during their pregnancy...
May 1, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28397064/an-exposure-risk-assessment-for-potentially-toxic-elements-in-rice-and-bulgur
#5
Sait C Sofuoglu, Aysun Sofuoglu
Rice and wheat are rich sources of essential elements. However, they may also accumulate potentially toxic elements (PTE). Bulgur, the popular alternative to rice in the eastern Mediterranean, is produced by processing wheat, during which PTE content may change. This study determined PTE concentrations in rice and bulgur collected from 50 participant households in the city of Izmir, Turkey, estimated ingestion exposure, and associated chronic-toxic and carcinogenic human health risks. Comparison of the determined concentrations to the available standard levels and the levels reported in the literature revealed that Cd, Co, and Pb in rice might be of concern...
April 10, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28380485/subclinical-atherosclerosis-in-patients-with-prior-pulmonary-thromboembolism
#6
Zafer Buyukterzi, Meral Buyukterzi, Ercan Kurtipek, Mehmet Sertac Alpaydin, Sukru Karaarslan
OBJECTIVE: Recent studies have indicated that endothelial dysfunction (ED) is common in patients with prior history of pulmonary thromboembolism (PTE). Based on the established relationship between ED and atherosclerosis, in this study, we aimed to investigate carotid intima- media thickness (cIMT) as a marker of subclinical atherosclerosis in patients who had prior history of PTE. SUBJECTS AND METHODS: Medical records of patients who had undergone transthoracic echocardiography in Konya Training and Research Hospital, included those that had a history of PTE, and age- and gender- matched patients without any history of PTE, were reviewed and echocardiographic findings and cIMT measurements were recorded...
April 4, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28376907/incidence-of-venous-thromboembolism-and-bleeding-events-in-patients-with-lower-extremity-orthopedic-surgery-a-retrospective-analysis-of-a-japanese-healthcare-database
#7
Takeshi Fuji, Masao Akagi, Yasuyuki Abe, Eisei Oda, Daisuke Matsubayashi, Kaori Ota, Masafumi Kobayashi, Yasuyuki Matsushita, Jumpei Kaburagi, Kei Ibusuki, Atsushi Takita, Mikio Iwashita, Takuhiro Yamaguchi
BACKGROUND: Orthopedic surgeries of lower extremities such as total knee arthroplasty (TKA), total hip arthroplasty (THA), and hip fracture surgery (HFS) are widely considered to carry a high risk of developing deep venous thrombosis (DVT) and pulmonary thromboembolism (PTE). Growing attention to epidemiological studies using a healthcare database led us to quantify the risks using a Japanese database to reveal recent medical care for such events. METHODS: The study comprised 36,947 patients who had undergone orthopedic surgeries of the lower extremities and whose medical information from April 2008 to September 2013 was available...
April 4, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28375636/dihydropteridine-pteridine-as-a-2h-2e-redox-mediator-for-the-reduction-of-co2-to-methanol-a-computational-study
#8
Chern-Hooi Lim, Aaron M Holder, James T Hynes, Charles B Musgrave
Conflicting experimental results for the electrocatalytic reduction of CO2 to CH3OH on a glassy carbon electrode by the 6,7-dimethyl-4-hydroxy-2-mercaptopteridine have been recently reported [ J. Am. Chem. Soc. 2014 , 136 , 14007 - 14010 , J. Am. Chem. Soc. 2016 , 138 , 1017 - 1021 ]. In this connection, we have used computational chemistry to examine the issue of this molecule's ability to act as a hydride donor to reduce CO2. We first determined that the most thermodynamically stable tautomer of this aqueous compound is its oxothione form, termed here PTE...
April 18, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28364190/pu-erh-tea-extract-mediated-protection-against-hepatosteatosis-and-insulin-resistance-in-mice-with-diet-induced-obesity-is-associated-with-the-induction-of-de-novo-lipogenesis-in-visceral-adipose-tissue
#9
Xianbin Cai, Shuhei Hayashi, Chongye Fang, Shumei Hao, Xuanjun Wang, Shuhei Nishiguchi, Hiroko Tsutsui, Jun Sheng
BACKGROUND: White adipose tissue (WAT) is important for the maintenance of metabolic homeostasis, and metabolic syndrome is sometimes associated with WAT dysfunction in humans and animals. WAT reportedly plays a key, beneficial role in the maintenance of glucose and lipid homeostasis during de novo lipogenesis (DNL). Pu'erh tea extract (PTE) can inhibit harmful, ectopic DNL in the liver, thus protecting against hepatosteatosis, in mice with diet-induced obesity. We examined whether PTE could induce DNL in WAT and consequently protect against hepatosteatosis...
March 31, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28358882/proteomic-analysis-of-organic-sulfur-compound-utilisation-in-advenella-mimigardefordensis-strain-dpn7t
#10
Christina Meinert, Ulrike Brandt, Viktoria Heine, Jessica Beyert, Sina Schmidl, Jan Hendrik Wübbeler, Birgit Voigt, Katharina Riedel, Alexander Steinbüchel
2-Mercaptosuccinate (MS) and 3,3´-ditiodipropionate (DTDP) were discussed as precursor substance for production of polythioesters (PTE). Therefore, degradation of MS and DTDP was investigated in Advenella mimigardefordensis strain DPN7T, applying differential proteomic analysis, gene deletion and enzyme assays. Protein extracts of cells cultivated with MS, DTDP or 3-sulfinopropionic acid (SP) were compared with those cultivated with propionate (P) and/or succinate (S). The chaperone DnaK (ratio DTDP/P 9.2, 3SP/P 4...
2017: PloS One
https://www.readbyqxmd.com/read/28343275/potential-toxic-elements-in-stream-sediments-soils-and-waters-in-an-abandoned-radium-mine-central-portugal
#11
I M H R Antunes, A M R Neiva, M T D Albuquerque, P C S Carvalho, A C T Santos, Pedro P Cunha
The Alto da Várzea radium mine (AV) exploited ore and U-bearing minerals, such as autunite and torbernite. The mine was exploited underground from 1911 to 1922, closed in 1946 without restoration, and actually a commercial area is deployed. Stream sediments, soils and water samples were collected between 2008 and 2009. Stream sediments are mainly contaminated in As, Th, U and W, which is related to the AV radium mine. The PTEs, As, Co, Cr, Sr, Th, U, W, Zn, and electrical conductivity reached the highest values in soils collected inside the mine influence...
March 25, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28331450/pulmonary-thromboendarterectomy-for-pulmonary-hypertension-before-considering-transplant
#12
Hannah Kooperkamp, Inder Mehta, David Fary, Michael Bates
BACKGROUND: In cases of chronic thromboembolic pulmonary hypertension (CTEPH), referral for possible surgical intervention is important because surgery can be curative. Surgery necessitates cardiopulmonary bypass and deep circulatory arrest with pulmonary thrombectomy and bilateral endarterectomy (PTE). If surgery fails, lung transplant is the next best surgical option. Medical treatment is also an important adjunct. CASE REPORT: A 35-year-old female presented 3 months after a pulmonary embolus was found to be completely occluding her left pulmonary artery...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28327448/prenatal-tobacco-exposure-birthweight-and-offspring-psychopathology
#13
Ardesheer Talati, Priya J Wickramaratne, Rikke Wesselhoeft, Myrna M Weissman
Although prenatal tobacco exposure (PTE) is associated with several adverse offspring mental health outcomes, mechanisms remain unclear. We test whether associations between PTE and offspring psychopathology are explained by birthweight, one of the earliest-occurring outcomes of PTE. The analysis focuses on 238 offspring from a family study of depression with (1) collected prenatal histories and (2) at least one clinical interview in adulthood to assess psychiatric problems. Exposure was categorized by maternal smoking of ≥10 cigarettes daily/nearly daily; diagnostic outcomes were confirmed by clinicians using the best-estimate procedure, blind to exposure...
March 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28316319/epileptic-spasms-in-paediatric-post-traumatic-epilepsy-at-a-tertiary-referral-centre
#14
Jun T Park, Harry T Chugani
To recognize epileptic spasms (ES) as a seizure type after traumatic brain injury (TBI), accidental or non-accidental, in infants and children. In the process, we aim to gain some insight into the mechanisms of epileptogenesis in ES. A retrospective electronic chart review was performed at the Children's Hospital of Michigan from 2002 to 2012. Electronic charts of 321 patients were reviewed for evidence of post-traumatic epilepsy. Various clinical variables were collected including age at TBI, mechanism of trauma, severity of brain injury, electroencephalography/neuroimaging data, and seizure semiology...
March 17, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28289496/surgical-treatment-of-chronic-thromboembolic-pulmonary-hypertension-pulmonary-thromboendarterectomy
#15
Michael M Madani
Pulmonary thromboendarterectomy (PTE), also referred to as pulmonary endarterectomy, is the definitive treatment for chronic thromboembolic pulmonary hypertension (CTEPH). The true incidence of CTEPH is unknown and difficult to ascertain; however, most experts agree that approximately 4% to 5% of all patients who have an acute episode of pulmonary embolism (PE) will continue to develop CTEPH. Based on an incidence rate of about 0.1% for acute PE, this translates into a CTEPH incidence of approximately 10,000 to 15,000 annually in the United States alone...
October 2016: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/28289495/treatment-of-chronic-thromboembolic-pulmonary-hypertension-the-role-of-medical-therapy-and-balloon-pulmonary-angioplasty
#16
Timothy M Fernandes, David S Poch, William R Auger
Chronic thromboembolic pulmonary hypertension (CTEPH) is a potentially curable disease when treated with pulmonary thromboendarterectomy (PTE). However, even at experienced surgical centers, nearly one-third of patients with CTEPH will be deemed inoperable for reasons including distal disease, comorbidities, or out-of-proportion pulmonary hypertension. It is in these patients with inoperable CTEPH that pulmonary hypertension (PH)-targeted medical therapy and balloon pulmonary angioplasty have potential therapeutic value...
October 2016: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/28286939/epidemiological-trend-of-pulmonary-thromboembolism-at-a-tertiary-hospital-in-korea
#17
Tae Yun Park, Jae-Woo Jung, Jae Chol Choi, Jong Wook Shin, Jae Yeol Kim, Byoung Whui Choi, In Won Park
Background/Aims: Despite increasing interest in pulmonary thromboembolism (PTE), data on recent trends in PTE incidence are limited. This study evaluated the recent incidence rate of PTE. Methods: We performed a retrospective chart review of patients with PTE admitted to Chung-Ang University Hospital during the 10-year period from 2006 to 2015. Age-standardized incidence and mortality rates were calculated by the direct method per 100,000 populations. To analyze the trend of risk factor, we also calculated the proportions of cancer, major operation, and recent major fracture over that time...
March 13, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28280942/perioperative-risk-factors-for-death-among-patients-with-symptomatic-pulmonary-thromboembolism
#18
REVIEW
(no author information available yet)
Perioperative pulmonary thromboembolism (PTE) is a fatal complication that may occur in patients who are undergoing surgery. This study aimed to identify risk factors for PTE-related death. This study evaluated data for the most recent 5-year period (2007-2011) from the Japanese Society of Anesthesiologists' database of patients who experienced perioperative PTE. We compared patients who died within 30 days of onset and patients who survived for > 30 days, and used logistic regression analysis to identify the independent risk factors...
March 9, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28269695/a-wirelessly-powered-homecage-with-animal-behavior-analysis-and-closed-loop-power-control
#19
Yaoyao Jia, Zheyuan Wang, Daniel Canales, Morgan Tinkler, Chia-Chun Hsu, Teresa E Madsen, S Abdollah Mirbozorgi, Donald Rainnie, Maysam Ghovanloo
This paper presents a new EnerCage-homecage system, EnerCage-HC2, for longitudinal electrophysiology data acquisition experiments on small freely moving animal subjects, such as rodents. EnerCage-HC2 is equipped with multi-coil wireless power transmission (WPT), closed-loop power control, bidirectional data communication via Bluetooth Low Energy (BLE), and Microsoft Kinect® based animal behavior tracking and analysis. The EnerCage-HC2 achieves a homogeneous power transfer efficiency (PTE) of 14% on average, with ~42 mW power delivered to the load (PDL) at a nominal height of 7 cm by the closed-loop power control mechanism...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269345/optimal-frequency-for-powering-millimeter-sized-biomedical-implants-inside-an-inductively-powered-homecage
#20
Hesam Sadeghi Gougheri, Mehdi Kiani
This paper presents the optimal design and operation frequency (f) of an inductively-powered homecage for powering biomedical devices with millimeter (mm) dimensions, implanted inside the body of freely-behaving small animal subjects, for longitudinal behavioral neuroscience and electrophysiology experiments. In order to improve the power transmission efficiency (PTE) for powering mm-sized implants, the geometry of the multi-coil inductive links in the form of 3- and 4-coil links as well as fp need to be co-optimized...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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