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https://www.readbyqxmd.com/read/28432403/bone-marrow-fat-content-in-70-adolescent-girls-with-anorexia-nervosa-magnetic-resonance-imaging-and-magnetic-resonance-spectroscopy-assessment
#1
Kirsten Ecklund, Sridhar Vajapeyam, Robert V Mulkern, Henry A Feldman, Jennifer M O'Donnell, Amy D DiVasta, Catherine M Gordon
BACKGROUND: Adolescents and women with anorexia nervosa have increased bone marrow fat and decreased bone formation, at least in part due to hormonal changes leading to preferential stem cell differentiation to adipocytes over osteoblasts. OBJECTIVE: The purpose of this study was to evaluate marrow fat content and correlate with age and disease severity using knee MRI with T1 relaxometry (T1-R) and MR spectroscopy (MRS) in 70 adolescents with anorexia nervosa. MATERIALS AND METHODS: We enrolled 70 girls with anorexia nervosa who underwent 3-T knee MRI with coronal T1-W images, T1-R and single-voxel proton MRS at 30 and 60 ms TE...
April 22, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28431795/shear-wave-liver-elastography-with-a-propagation-map-diagnostic-performance-and-inter-observer-correlation-for-hepatic-fibrosis-in-chronic-hepatitis
#2
Eun Sun Lee, Jong Beum Lee, Hwi Ryong Park, Jeongin Yoo, Ji In Choi, Hyun Woong Lee, Hyung Joon Kim, Byung Ihn Choi, Hyun Jeong Park, Sung Bin Park
The aim of this study was to determine the performance of shear wave elastography (SWE) with a propagation map in the diagnosis of hepatic fibrosis, and to assess its reliability with transient elastography (TE) as the reference standard. Our prospective study included 115 consecutive patients with suspected or alleged chronic hepatitis. Patients underwent SWE by two different operators and TE by sonographers on the same day. The correlation coefficient of the intra-class correlation test between an experienced radiologist and a third-year radiology resident was 0...
April 18, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28429248/time-in-therapeutic-range-as-a-marker-for-thrombotic-and-bleeding-outcomes-in-fontan-patients
#3
Jenna M Faircloth, Kristin M Miner, Tarek Alsaied, Nicole Nelson, Julie Ciambarella, Tomoyuki Mizuno, Joseph S Palumbo, Alexander A Vinks, Gruschen R Veldtman
Fontan patients managed with warfarin are at risk not only for thrombotic events, but also for bleeding episodes as a consequence of anticoagulation treatment. The aim of this study was to determine whether time spent in patient specified therapeutic range (TTR), when managed in a cardiology-based pharmacist managed anticoagulation clinic (PMAC), is a useful target metric for monitoring, as well as improving outcomes. A single center retrospective review was conducted evaluating TTR of all Fontan patients (n = 45) on warfarin managed in our outpatient cardiology pharmacist managed anticoagulation clinic (PMAC) during a 19 month time frame...
April 20, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28428882/differential-phenotypes-of-memory-cd4-and-cd8-t-cells-in-the-spleen-and-peripheral-tissues-following-immunostimulatory-therapy
#4
Gail D Sckisel, Annie Mirsoian, Christine M Minnar, Marka Crittenden, Brendan Curti, Jane Q Chen, Bruce R Blazar, Alexander D Borowsky, Arta M Monjazeb, William J Murphy
BACKGROUND: Studies assessing immune parameters typically utilize human PBMCs or murine splenocytes to generate data that is interpreted as representative of immune status. Using splenocytes, we have shown memory CD4-T cells that expand following systemic immunostimulatory therapies undergo rapid IFNg-mediated activation induced cell death (AICD) resulting in a net loss of total CD4-T cells which correlates with elevated PD-1 expression. This is in contrast to CD8-T cells which expand with minimal PD-1 upregulation and apoptosis...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28424293/prediction-suppression-and-surprise-enhancement-in-monkey-inferotemporal-cortex
#5
Suchitra Ramachandran, Travis Meyer, Carl R Olson
Exposing monkeys, over the course of days and weeks, to pairs of images presented in fixed sequence, so that each leading image becomes a predictor for the corresponding trailing image, affects neuronal visual responsiveness in area TE. At the end of the training period, neurons respond relatively weakly to a trailing image when it appears in a trained sequence and thus confirms prediction whereas they respond relatively strongly to the same image when it appears in an untrained sequence and thus violates prediction...
April 19, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28415898/-31-phosphorus-magnetic-resonance-spectroscopy-of-the-liver-for-evaluating-inflammation-and-fibrosis-in-autoimmune-hepatitis
#6
Lauri Puustinen, Antti Hakkarainen, Reetta Kivisaari, Sonja Boyd, Urpo Nieminen, Martti Färkkilä, Nina Lundbom, Perttu Arkkila
BACKGROUND: Liver biopsy is the gold standard in evaluating inflammation and fibrosis in autoimmune hepatitis. AIMS: In search of non-invasive follow-up tools in autoimmune hepatitis, we evaluated (31)phosphorus magnetic resonance spectroscopy ((31)P MRS). METHODS: Twelve consecutive AIH patients (mean age 42.8 years, 10 women) underwent liver biopsy, routine laboratory liver function tests, which were compared to findings in (31)P MRS and transient elastography (TE)...
April 17, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28401019/a-tumor-vessel-targeting-fusion-protein-elicits-a-chemotherapeutic-bystander-effect-in-pancreatic-ductal-adenocarcinoma
#7
Chun-Te Chen, Yi-Chun Chen, Yi Du, Zhenbo Han, Haoqiang Ying, Richard R Bouchard, Jennifer L Hsu, Jung-Mao Hsu, Trevor M Mitcham, Mei-Kuang Chen, Hui-Lung Sun, Shih-Shin Chang, Donghui Li, Ping Chang, Ronald A DePinho, Mien-Chie Hung
Pancreatic ductal adenocarcinoma (PDAC) is a highly lethal disease characterized by a prominent desmoplastic stroma that may constrain tumor progression but also limit the access of therapeutic drugs. In this study, we explored a tumor-targeting strategy that enlists an engineered anti-angiogenic protein consisting of endostatin and cytosine deaminase linked to uracil phosphoribosyltransferase (EndoCD). This protein selectively binds to tumor vessels to compromise tumor angiogenesis and converts the non-toxic 5-fluorocytosine (5-FC) to the cytotoxic 5-fluorouracil to produce a chemotherapeutic bystander effect at the pancreatic tumor site...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28392152/how-exercise-influences-equine-joint-homeostasis
#8
REVIEW
Nikae C R Te Moller, P René van Weeren
The maintenance of joint homeostasis is integral to joint health. Knowledge of the influence of exercise on joint homeostasis is not only relevant for determining sustainable levels of equine athletic training, but also for the study of early development of osteoarthritis or cartilage repair in animal models. This review provides an overview of findings derived from in vivo studies and postmortem analyses investigating exercise effects on various joint tissue components in the horse, supplemented where appropriate with data from small animal models...
March 28, 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28391526/trans-ethnic-fine-mapping-of-genetic-loci-for-body-mass-index-in-the-diverse-ancestral-populations-of-the-population-architecture-using-genomics-and-epidemiology-page-study-reveals-evidence-for-multiple-signals-at-established-loci
#9
Lindsay Fernández-Rhodes, Jian Gong, Jeffrey Haessler, Nora Franceschini, Mariaelisa Graff, Katherine K Nishimura, Yujie Wang, Heather M Highland, Sachiko Yoneyama, William S Bush, Robert Goodloe, Marylyn D Ritchie, Dana Crawford, Myron Gross, Myriam Fornage, Petra Buzkova, Ran Tao, Carmen Isasi, Larissa Avilés-Santa, Martha Daviglus, Rachel H Mackey, Denise Houston, C Charles Gu, Georg Ehret, Khanh-Dung H Nguyen, Cora E Lewis, Mark Leppert, Marguerite R Irvin, Unhee Lim, Christopher A Haiman, Loic Le Marchand, Fredrick Schumacher, Lynne Wilkens, Yingchang Lu, Erwin P Bottinger, Ruth J L Loos, Wayne H-H Sheu, Xiuqing Guo, Wen-Jane Lee, Yang Hai, Yi-Jen Hung, Devin Absher, I-Chien Wu, Kent D Taylor, I-Te Lee, Yeheng Liu, Tzung-Dau Wang, Thomas Quertermous, Jyh-Ming J Juang, Jerome I Rotter, Themistocles Assimes, Chao A Hsiung, Yii-Der Ida Chen, Ross Prentice, Lewis H Kuller, JoAnn E Manson, Charles Kooperberg, Paul Smokowski, Whitney R Robinson, Penny Gordon-Larsen, Rongling Li, Lucia Hindorff, Steven Buyske, Tara C Matise, Ulrike Peters, Kari E North
Most body mass index (BMI) genetic loci have been identified in studies of primarily European ancestries. The effect of these loci in other racial/ethnic groups is less clear. Thus, we aimed to characterize the generalizability of 170 established BMI variants, or their proxies, to diverse US populations and trans-ethnically fine-map 36 BMI loci using a sample of >102,000 adults of African, Hispanic/Latino, Asian, European and American Indian/Alaskan Native descent from the Population Architecture using Genomics and Epidemiology Study...
April 8, 2017: Human Genetics
https://www.readbyqxmd.com/read/28387018/transient-elastography-alone-and-in-combination-with-fibrotest-%C3%A2-for-the-diagnosis-of-hepatic-fibrosis-in-alcoholic-liver-disease
#10
Cosmin Sebastian Voican, Alexandre Louvet, Jean-Baptiste Trabut, Micheline Njiké-Nakseu, Sébastien Dharancy, Andrea Sanchez, Marion Corouge, Karima Lamouri, Amandine Lebrun, Axel Balian, Sophie Prévot, Mounia Lachgar, Sophie Maitre, Hélène Agostini, Philippe Mathurin, Gabriel Perlemuter, Sylvie Naveau
BACKGROUND&AIMS: The reliability of transient elastography (TE) to assess liver fibrosis is insufficiently validated in alcoholic liver disease (ALD). We aimed to validate the diagnostic utility of TE for liver fibrosis in patients with excessive alcohol consumption and evaluate whether Fibrotest(®) adds diagnostic value relative to or in combination with TE. METHODS: We conducted a multicenter prospective study on a total of 217 heavy drinkers with high serum aminotransferase levels...
April 7, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28383687/neuropsychiatric-symptoms-in-alzheimer-s-disease-associations-with-caregiver-burden-and-treatment-outcomes
#11
Chao Tung Chen, Chiung-Chih Chang, Wen-Neng Chang, Nai-Wen Tsai, Chih-Cheng Huang, Ya-Ting Chang, Hung-Chen Wang, Chia-Te Kung, Yu-Jih Su, Wei-Che Lin, Ben-Chung Cheng, Chih-Min Su, Sheng-Yuan Hsiao, Che-Wei Hsu, Cheng-Hsien Lu
Background: Caregivers play a major role in providing care for patients with Alzheimer's disease (AD) and are themselves at higher risk of health comorbidities. Aim: To address the impact of neuropsychiatric symptoms of patients in different stages of AD on their caregivers' burden. Design: This prospective study enrolled 260 AD patients with clinical dementia rating of 0.5, 1, and 2 at a tertiary medical center. Methods: All patients were tested using the Mini-Mental State Examination (MMSE), the Cognitive Abilities Screening Instrument (CASI), the Neuropsychiatric Inventory (NPI), and the Clinical Dementia Rating scale (CDR)...
April 5, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28380562/metals-and-metalloids-in-wild-asparagus-at-uncontaminated-and-mining-contaminated-sites
#12
R Biddau, R Cidu
Wild edible plants are often considered healthier than crops because they are unaffected by fertilizers, herbicides, and pesticides. However, the occurrence of potentially toxic elements in wild plants is poorly known and needs to be assessed. In this study, 22 elements were determined by inductively coupled plasma mass spectrometry in wild asparagus ( L.). Asparagus shoots were collected in uncontaminated environments (20 sites) and in areas contaminated by past mining (15 sites) in Sardinia, Italy. Beryllium, Bi, Te, Tl, and U were not detected in asparagus (<0...
March 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28371672/determinants-of-pulmonary-dead-space-in-ventilated-newborn-infants
#13
Theodore Dassios, Ourania Kaltsogianni, Anne Greenough
BACKGROUND: Pulmonary dead space (VD) is an index of ventilation inhomogeneity and one of the determinants of the magnitude of tidal volume to maintain optimal blood gases. AIMS: To identify the determinants of VD in ventilated newborns and to investigate differences in VD between prematurely born and term infants and those prematurely born infants who did or did not develop bronchopulmonary dysplasia (BPD). METHODS: Sixty-one mechanically ventilated infants (15 term, 46 preterm) were studied at a median age of 8 (IQR 2-31) days; 32 of the preterm infants developed BPD...
March 31, 2017: Early Human Development
https://www.readbyqxmd.com/read/28369516/comprehensive-chromosome-screening-and-gene-expression-analysis-from-the-same-biopsy-in-human-preimplantation-embryos
#14
Diego Marin, Yujue Wang, Xin Tao, Richard T Scott, Nathan R Treff
STUDY QUESTION: Can simultaneous comprehensive chromosome screening (CCS) and gene expression analysis be performed on the same biopsy of preimplantation human embryos? SUMMARY ANSWER: For the first time, CCS and reliable gene expression analysis have been performed on the same human preimplantation embryo biopsy. WHAT IS KNOWN ALREADY: A single trophectoderm (TE) biopsy is routinely used for many IVF programs offering CCS for selection of only chromosomally normal embryos for transfer...
March 23, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28367244/mrna-and-methylation-profiling-of-radioresistant-esophageal-cancer-cells-the-involvement-of-sall2-in-acquired-aggressive-phenotypes
#15
Judong Luo, Wenjie Wang, Yiting Tang, Dandan Zhou, Yi Gao, Qi Zhang, Xifa Zhou, Hui Zhu, Ligang Xing, Jinming Yu
Esophageal squamous cell carcinoma (ESCC) is one of the deadliest malignancies worldwide. Radiotherapy plays a critical role in the curative management of inoperable ESCC patients. However, radioresistance restricts the efficacy of radiotherapy for ESCC patients. The molecules involved in radioresistance remain largely unknown, and new approaches to sensitize cells to irradiation are in demand. Technical advances in analysis of mRNA and methylation have enabled the exploration of the etiology of diseases and have the potential to broaden our understanding of the molecular pathways of ESCC radioresistance...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28365107/recurrent-and-acquired-tracheoesophageal-fistulae-tef-minimally-invasive-management
#16
Zafar Nazir, Muhammad Arif Mateen Khan, Javaria Qamar
OBJECTIVE: Recurrent and acquired fistulae are a serious complication of congenital esophageal atresia and tracheoesophageal fistula (TEF) repair and foreign body ingestion (FBI) (e.g., button battery). We report our experience with a minimally invasive approach to recurrent and acquired TEF. METHODS: Medical records of patients referred for management of recurrent and acquired TEF between 2003 and 2015 were reviewed retrospectively. Patients underwent endoscopic procedures (de-epithelization of fistulous tract and fibrin tissue adhesive-Tisseel(R)) under general anesthesia...
March 23, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28359292/cardiac-4d-phase-contrast-cmr-at-9-4%C3%A2-t-using-self-gated-ultra-short-echo-time-ute-imaging
#17
M Krämer, A G Motaal, K-H Herrmann, B Löffler, J R Reichenbach, G J Strijkers, V Hoerr
BACKGROUND: Time resolved 4D phase contrast (PC) cardiovascular magnetic resonance (CMR) in mice is challenging due to long scan times, small animal ECG-gating and the rapid blood flow and cardiac motion of small rodents. To overcome several of these technical challenges we implemented a retrospectively self-gated 4D PC radial ultra-short echo-time (UTE) acquisition scheme and assessed its performance in healthy mice by comparing the results with those obtained with an ECG-triggered 4D PC fast low angle shot (FLASH) sequence...
March 31, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28355752/-incidence-and-influencing-factors-of-continuous-positive-airway-pressure-treatment-emergent-central-sleep-apnea-in-the-patients-with-obstructive-sleep-apnea-syndrome-at-high-altitude
#18
Z B Miao, Y Y Wang, R Sun, H L Lei, D J Huang, L H Huang, C Y Fan, Y H Lü
Objective: To investigate the incidence of treatment-emergent central sleep apnea (TE-CSA), the characteristics of demography and the influencing factors in patients with obstructive sleep apnea syndrome (OSAS) after initial continuous positive airway pressure (CPAP) titration at high altitude. Methods: Clinical data of 297 patients with OSAS which living in plateau areas (1 000 meters or more above sea level) were retrospectively analyzed in this study from January to December, 2015. All of these patients taken an overnight CPAP titration in the Sleep Medicine Center of First People's Hospital of Yunnan Province...
March 28, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28351014/phytostabilisation-of-severely-contaminated-mine-tailings-using-halophytes-and-field-addition-of-organic-and-inorganic-amendments
#19
T Pardo, M P Bernal, R Clemente
Phytostabilisation strategies have proven to be an efficient remediation option for mine tailings, but the adequate plant species and amendments have to be carefully selected. A remediation experiment was carried out at the semi-field level in tailings (pH 3.2, ≈1100, 4700 and 5000 mg kg(-1) of As, Pb and Zn, respectively) from the mining district of La Unión-Cartagena (SE Spain). A red mud derivative (Fe/Al oxides), its combination with compost, and hydrated lime (Ca hydroxide) were applied in field plots of 0...
March 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28343571/a-method-to-transform-a-variable-thermal-regime-to-a-physiologically-equivalent-effective-temperature
#20
Charles Mitz, Christopher Thome, Jeroen Thompson, Richard G Manzon, Joanna Y Wilson, Douglas R Boreham
We present a method to characterize variable thermal regimes in terms of an equivalent or effective temperature. Our method is based on a first order exponential transformation of a time series of temperatures to yield an exponentially-weighted mean temperature characteristic of the regime and independent of any particular species or end point. The resulting effective temperature or exponential mean, Te¯, offers an improved method for summarizing mean temperature where biological response scales exponentially to temperature...
April 2017: Journal of Thermal Biology
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