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https://www.readbyqxmd.com/read/28449478/protective-effect-of-propofol-preconditioning-on-ischemia-reperfusion-injury-in-human-hepatocyte
#1
Yuzhu Zhang, Zhenzhen Chen, Nianhai Feng, Junxia Tang, Xingbo Zhao, Chengxiao Liu, Hongyu Xu, Mengyuan Zhang
BACKGROUND: Blood reperfusion after ischemia is the main measure to restore cell function. This study was aimed to explore the effect of propofol on rat and cell models of liver ischemia-reperfusion (I/R) injury, and to investigate its possible mechanism. METHODS: Wistar rats were divided into four groups: control group, sham group, I/R group, and propofol group. Human hepatocyte HL7702 was divided into six groups: control group, I/R group and propofol (5, 10, 20 and 40 µmol/L) groups...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449393/a-phase-1-study-of-the-c-met-inhibitor-tivantinib-arq197-in-children-with-relapsed-or-refractory-solid-tumors-a-children-s-oncology-group-study-phase-1-and-pilot-consortium-trial-advl1111
#2
James I Geller, John P Perentesis, Xiaowei Liu, Charles G Minard, Rachel A Kudgus, Joel M Reid, Elizabeth Fox, Susan M Blaney, Brenda J Weigel
BACKGROUND: The c-Met receptor tyrosine kinase is dysregulated in many pediatric cancers. Tivantinib is an oral small molecule that inhibits the c-Met receptor tyrosine kinase. A phase 1 and pharmacokinetic (PK) trial evaluating tivantinib was conducted in children with relapsed/refractory solid tumors. METHODS: Oral tivantinib capsules were administered twice daily with food, continuously in 28-day cycles. Dose levels 170, 200, and 240 mg/m(2) /dose were evaluated using a rolling-six design (Part A)...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28449306/malignant-ovarian-germ-cell-tumors-in-pediatric-patients-the-aieop-associazione-italiana-ematologia-oncologia-pediatrica-study
#3
M Terenziani, G Bisogno, R Boldrini, G Cecchetto, M Conte, L Boschetti, M D De Pasquale, D Biasoni, A Inserra, F Siracusa, M E Basso, F De Leonardis, D Di Pinto, F Barretta, F Spreafico, P D'Angelo
OBJECTIVE: Malignant ovarian germ cell tumors (MOGCT) carry an excellent prognosis, and the treatment aims to achieve results with the least possible treatment-related morbidity. The aim of this study was to assess the outcomes of pediatric patients with MOGCT. METHODS: Patients were treated according to their stage: surgery and surveillance for stage I; a modified bleomycin-etoposide-cisplatin (BEP) regimen for stages II (three cycles), III, and IV (three cycles) with surgery on residual disease...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28449292/oral-health-beliefs-knowledge-and-behaviors-in-northern-california-american-indian-and-alaska-native-mothers-regarding-early-childhood-caries
#4
Brenda Heaton, Andrew Crawford, Raul I Garcia, Michelle Henshaw, Christine A Riedy, Judith C Barker, Maureen A Wimsatt
OBJECTIVES: To assess the oral health beliefs, knowledge, and behaviors related to early childhood caries (ECC) risk in a convenience sample of American Indian and Alaska Native (AIAN) mothers residing in rural Northern California communities. METHODS: Fifty-three mothers of young children were recruited from three tribal communities in Northern California with the assistance of the California Rural Indian Health Board, Inc. and its California Tribal Epidemiology Center and Dental Support Center...
April 27, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28449275/public-perception-of-dermatology-and-dermatologists-in-italy-results-from-a-population-based-national-survey
#5
P Gisondi, G Deangelis, G Venturelli, G Girolomoni
INTRODUCTION: The public perception of Dermatology and dermatologists may be very relevant in guiding strategies for improving dermatologic care but it has been poorly investigated in Europe. OBJECTIVE: To investigate the public's perception of Dermatology and dermatologists in Italy. METHODS: A representative sampling of Italian adults (n=1500, aged 18-70 years), residing throughout the national territory was interviewed through a population-based telephone survey using a structured questionnaire...
April 27, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28449257/the-development-and-application-of-random-match-probabilities-to-firearm-and-toolmark-identification
#6
John E Murdock, Nicholas D K Petraco, John I Thornton, Michael T Neel, Todd J Weller, Robert M Thompson, James E Hamby, Eric R Collins
The field of firearms and toolmark analysis has encountered deep scrutiny of late, stemming from a handful of voices, primarily in the law and statistical communities. While strong scrutiny is a healthy and necessary part of any scientific endeavor, much of the current criticism leveled at firearm and toolmark analysis is, at best, misinformed and, at worst, punditry. One of the most persistent criticisms stems from the view that as the field lacks quantified random match probability data (or at least a firm statistical model) with which to calculate the probability of a false match, all expert testimony concerning firearm and toolmark identification or source attribution is unreliable and should be ruled inadmissible...
May 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28449238/exposure-response-relationship-of-neighbourhood-sanitation-and-children-s-diarrhea
#7
Youngmee Tiffany Jung, Wendy Lou, Yu-Ling Cheng
OBJECTIVES: To assess the association of neighbourhood sanitation coverage with under-five children's diarrheal morbidity, and to evaluate its exposure-response relationship. METHODS: We used the Demographic and Health Surveys (DHS) of 29 developing countries in sub-Saharan Africa and South Asia, conducted between 2010 and 2014. The primary outcome was 2-week incidence of diarrhea in children under 5 years of age (N=300426). We conducted three-level logistic regression analyses and applied cubic splines to assess the trend between neighbourhood-level coverage of improved household sanitation and diarrheal morbidity...
April 27, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28449211/operational-tolerance-in-kidney-transplantation-and-associated-biomarkers
#8
REVIEW
Annick Massart, Lidia Ghisdal, Marc Abramowicz, Daniel Abramowicz
In the 1960s, our predecessors won a historical battle against acute rejection and ensured that transplantation became a common life-saving treatment. In parallel to this success, or perhaps because of it, we lost the battle for long-lived transplants, being overwhelmed with chronic immune insults and the toxicities of immunosuppression. It is likely that current powerful treatments block acute rejection, but at the same time condemn the few circulating donor cells that would have been able to elicit immunoregulatory host responses towards the allograft...
April 27, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28449086/a-coordinated-action-of-blood-borne-and-brain-insulin-like-growth-factor-i-in-the-response-to-traumatic-brain-injury
#9
A Santi, L Genis, I Torres Aleman
In response to injury, the brain produces different neuroprotective molecules, such as insulin-like growth factor I (IGF-I). However, IGF-I is also taken up by the brain from the circulation in response to physiological stimuli. Herein, we analyzed in mice the relative contribution of circulating and locally produced IGF-I to increased brain IGF-I levels after insult. Traumatic brain injury (TBI) induced by a controlled impact resulted in increased IGF-I levels in the vicinity of the lesion, but mice with low serum IGF-I showed significantly lower increases...
April 26, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28449054/i-learn-therefore-i-am-a-phenomenological-analysis-of-meanings-of-lifelong-learning-for-vulnerable-older-adults
#10
Miya Narushima, Jian Liu, Naomi Diestelkamp
Background and Objectives: This study explores the lifelong learning experience of vulnerable older adults to find out (a) what is involved in their activities, (b) what meanings they take from their learning, and (c) how participation in a learning program helps to maintain their well-being and independent living despite their daily challenges. Research Design and Methods: This study employed a hermeneutic phenomenological approach. As part of a larger study, we conducted semi-structured interviews with older learners enrolled in general interest courses at a public continuing education program...
April 26, 2017: Gerontologist
https://www.readbyqxmd.com/read/28449039/polyphyllin-i-induces-g2-m-phase-arrest-and-apoptosis-in-u251-human-glioma-cells-via-mitochondrial-dysfunction-and-the-jnk-signaling-pathway
#11
Jiaxin Liu, Yueting Zhang, Li Chen, Fei Yu, Xiaojin Li, Dan Tao, Jianhua Zhao, Shuai Zhou
Glioblastoma is the most aggressive brain tumor, and its prognosis remains poor. Therefore, novel therapeutic strategies are needed for glioma therapy. Polyphyllin I (PPI), a bioactive constituent extracted from Paris polyphylla, was reported to have anti-tumor activity. However, the detailed mechanism for this activity remains unclear. Here, we investigated the inhibitory effects of PPI on glioma cells and its mechanisms in vitro. U251 cells were treated with various concentrations of PPI (2-9 μM) for 24 to 72 h...
April 26, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28448959/detection-of-circulating-tumor-cells-and-circulating-tumor-microemboli-in-gastric-cancer
#12
Xiumei Zheng, Li Fan, Pengfei Zhou, Hong Ma, Shaoyi Huang, Dandan Yu, Lei Zhao, Shengli Yang, Jun Liu, Ai Huang, Congli Cai, Xiaomeng Dai, Tao Zhang
PURPOSE: Gastric cancer studies indicated a potential correlation between circulating tumor cells (CTCs) in peripheral blood and tumor relapse/metastasis. The prevalence and significance of circulating tumor microemboli (CTM) in gastric cancer remain unknown. We investigated the prevalence and prognostic value of CTCs and CTM for progression-free survival (PFS) and overall survival (OS) in gastric cancer patients. METHODS: Eighty-one gastric cancer patients consented to provide 5ml of peripheral blood before systematic therapy...
April 24, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28448932/seasonal-changes-of-fructans-in-dimorphic-roots-of-ichthyothere-terminalis-spreng-blake-asteraceae-growing-in-cerrado
#13
Lorrayne Veloso de Almeida, Pedro Henrique Ferri, José Carlos Seraphin, Moemy Gomes de Moraes
Cerrado is a floristically rich savanna in Brazil, whose vegetation consists of a physiognomic mosaic, influenced by rainfall seasonality. In the dry season rainfall is substantially lower and reduces soil water supply, mainly for herbs and subshrubs. Climatic seasonal variations may well define phenological shifts and induce fluctuations of plant reserve pools. Some Cerrado native species have thickened underground organs that bear buds and store reserves, as adaptive features to enable plant survival following environmental stresses...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28448925/geostatistics-as-a-tool-to-improve-the-natural-background-level-definition-an-application-in-groundwater
#14
Nico Dalla Libera, Paolo Fabbri, Leonardo Mason, Leonardo Piccinini, Marco Pola
The Natural Background Level (NBL), suggested by UE BRIDGE project, is suited for spatially distributed datasets providing a regional value that could be higher than the Threshold Value (TV) set by every country. In hydro-geochemically dis-homogeneous areas, the use of a unique regional NBL, higher than TV, could arise problems to distinguish between natural occurrences and anthropogenic contaminant sources. Hence, the goal of this study is to improve the NBL definition employing a geostatistical approach, which reconstructs the contaminant spatial structure accounting geochemical and hydrogeological relationships...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28448868/protective-effects-of-teucrium-polium-aqueous-extract-and-ascorbic-acid-on-hematological-and-some-biochemical-parameters-against-carbon-tetrachloride-ccl4-induced-toxicity-in-rats
#15
Fatma Rahmouni, Latifa Hamdaoui, Riadh Badraoui, Tarek Rebai
Herbal drugs play a crucial function to protect organisms from the toxic effect of some compounds. The present study was designed to evaluate the protective effects of Teucrium Polium (TP) aqueous extract and vitamin C (Vit C) against carbon tetrachloride (CCl4) which induced toxicity in rats. Male albino Wistar rats were divided into six groups: group I was used as controls, group II received CCl4 in olive oil (0.5ml/kg) by gavage, and group III received CCl4 in olive oil (0.5ml/kg) by gavage after three days of receiving TP (5g/l), orally, for seven days; Group IV received TP (5g/l) alone, orally, for seven days, Group V received CCl4 in olive oil (0...
April 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28448826/generalized-anxiety-disorder-worry-and-attention-to-threat-a-systematic-review
#16
REVIEW
Huw Goodwin, Jenny Yiend, Colette R Hirsch
Among anxious populations, attention has been demonstrated to be preferentially biased to threatening material compared to neutral or other valenced material. Individuals who have high levels of trait worry, such as those with Generalized Anxiety Disorder (GAD), may be biased to threat but research has produced equivocal findings. This review aimed to systematically review the extant experimental literature to establish the current evidence of attentional bias to threat among trait worriers compared to healthy controls and other clinical populations...
March 29, 2017: Clinical Psychology Review
https://www.readbyqxmd.com/read/28448771/geosmithia-associated-with-bark-beetles-and-woodborers-in-the-western-usa-taxonomic-diversity-and-vector-specificity
#17
Miroslav Kolařík, Jiri Hulcr, Ned Tisserat, Wilhelm De Beer, Martin Kostovčík, Zuzana Kolaříková, Steven J Seybold, David M Rizzo
Fungi in the genus Geosmithia (Ascomycota: Hypocreales) are frequent associates of bark beetles and woodborers that colonize hardwood and coniferous trees. One species, Geosmithia morbida, is an economically damaging invasive species. The authors surveyed the Geosmithia species of California and Colorado, USA, to (i) provide baseline data on taxonomy of Geosmithia and beetle vector specificity across the western USA; (ii) investigate the subcortical beetle fauna for alternative vectors of the invasive G. morbida; and (iii) interpret the community composition of this region within the emerging global biogeography of Geosmithia...
April 24, 2017: Mycologia
https://www.readbyqxmd.com/read/28448765/digital-assays-part-i-partitioning-statistics-and-digital-pcr
#18
Amar S Basu
A digital assay is one in which the sample is partitioned into many small containers such that each partition contains a discrete number of biological entities (0, 1, 2, 3, …). A powerful technique in the biologist's toolkit, digital assays bring a new level of precision in quantifying nucleic acids, measuring proteins and their enzymatic activity, and probing single-cell genotypes and phenotypes. Part I of this review begins with the benefits and Poisson statistics of partitioning, including sources of error...
April 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/28448563/corticosteroids-effects-on-lps-induced-rat-inflammatory-keratocyte-cell-model
#19
Huize Yan, Yingwei Wang, Shuhao Shen, Zheng Wu, Pengxia Wan
PURPOSE: Corticosteroids are efficient anti-inflammation treatments. However, there are still arguments on whether it should be used in keratitis. This study was to observe the effect of corticosteroids on keratocytes both in normal condition and inflammation status in vitro. METHODS: Rat keratocytes were cultured and used for examination. 10 μg/ml lipopolysaccharide (LPS) was used to establish the inflammatory keratocyte cell model, and prednisolone acetate (PA), dexamethasone (Dex) and fluorometholone (Flu) were used as corticosteroids treatments...
2017: PloS One
https://www.readbyqxmd.com/read/28448522/nestin-expression-is-upregulated-in-the-fibrotic-rat-heart-and-is-localized-in-collagen-expressing-mesenchymal-cells-and-interstitial-cd31-cells
#20
Vanessa Hertig, Kim Tardif, Marc Andre Meus, Natacha Duquette, Louis Villeneuve, Fanny Toussaint, Jonathan Ledoux, Angelino Calderone
Renal and lung fibrosis was characterized by the accumulation of collagen-immunoreactive mesenchymal cells expressing the intermediate filament protein nestin. The present study tested the hypothesis that nestin expression was increased in the hypertrophied/fibrotic left ventricle of suprarenal abdominal aorta constricted adult male Sprague-Dawley rats and induced in ventricular fibroblasts by pro-fibrotic peptide growth factors. Nestin protein levels were upregulated in the pressure-overloaded left ventricle and expression positively correlated with the rise of mean arterial pressure...
2017: PloS One
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