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https://www.readbyqxmd.com/read/29785879/blood-and-hair-mercury-concentrations-among-cree-first-nations-of-eeyou-istchee-quebec-canada-time-trends-prenatal-exposure-and-links-to-local-fish-consumption
#1
Susannah Ripley, Elizabeth Robinson, Louise Johnson-Down, Anne Andermann, Pierre Ayotte, Michel Lucas, Evert Nieboer
To describe exposure to methylmercury among Cree, focusing on women of childbearing age, we used data from 2 studies. Multiple regression was employed to examine associations between blood and hair mercury concentrations and consumption of locally harvested fish. Approximately 9.9% of non-pregnant women aged 15-44 y and 3.9% of pregnant women required follow-up according to Health Canada's blood mercury guidance value of 40 nmol/L. 8% of hair mercury observations in the non-pregnant women and 2.5% among pregnant women exceeded the equivalent threshold of 10 nmol/g...
December 2018: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/29785126/impact-of-targeting-transforming-growth-factor-%C3%AE-2-with-antisense-ot-101-on-the-cytokine-and-chemokine-profile-in-patients-with-advanced-pancreatic-cancer
#2
Osmond J D'Cruz, Sanjive Qazi, Larn Hwang, Kevin Ng, Vuong Trieu
Background: Overexpression of the cytokine - transforming growth factor-beta 2 (TGF-β2) - has been implicated in the malignant progression of pancreatic cancer (PAC). OT-101 (trabedersen) is an antisense oligodeoxynucleotide designed to target the human TGF-β2 mRNA. In a Phase I/II study, OT-101 treatment with subsequent chemotherapy was characterized by outstanding overall survival (OS) in patients with PAC. Objective: This study sought to identify 1) co-regulated sets of cyto-/chemokines; 2) potential mechanisms that link TGF-β receptor type 2 receptor inhibition that may result in the induction of a cytokine storm; and 3) predictive biomarkers for OS outcome in OT-101-treated patients with PAC...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29784979/pervasive-introgression-facilitated-domestication-and-adaptation-in-the-bos-species-complex
#3
Dong-Dong Wu, Xiang-Dong Ding, Sheng Wang, Jan M Wójcik, Yi Zhang, Małgorzata Tokarska, Yan Li, Ming-Shan Wang, Omar Faruque, Rasmus Nielsen, Qin Zhang, Ya-Ping Zhang
Species of the Bos genus, including taurine cattle, zebu, gayal, gaur, banteng, yak, wisent and bison, have been domesticated at least four times and have been an important source of meat, milk and power for many human cultures. We sequence the genomes of gayal, gaur, banteng, wisent and bison, and provide population genomic sequencing of an additional 98 individuals. We use these data to determine the phylogeny and evolutionary history of these species and show that the threatened gayal is an independent species or subspecies...
May 21, 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29784005/cd8-t-cells-mediate-the-antitumor-activity-of-frankincense-and-myrrh-in-hepatocellular-carcinoma
#4
Chun Xu, Xian Lu, Wei Liu, Anxian Chen, Gang Meng, Hailin Zhang, Binghua Li, Yonghui Zhang, Junhua Wu, Jiwu Wei
BACKGROUND: Tumor-promoting inflammation is an emerging hallmark of cancer, which participates in both cancer progression and immune escape. Hepatocellular carcinoma (HCC) is a typical inflammation-related cancer with an extremely poor prognosis. Frankincense and myrrh are anti-inflammation agents commonly used in clinic. The purpose of this study is to investigate whether extract of frankincense and myrrh (FM) downregulates inflammatory microenvironment of HCC and thereby restores antitumor immune responses...
May 21, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29780671/protection-of-cultured-brain-endothelial-cells-from-cytokine-induced-damage-by-%C3%AE-melanocyte-stimulating-hormone
#5
András Harazin, Alexandra Bocsik, Lilla Barna, András Kincses, Judit Váradi, Ferenc Fenyvesi, Vilmos Tubak, Maria A Deli, Miklós Vecsernyés
The blood-brain barrier (BBB), an interface between the systemic circulation and the nervous system, can be a target of cytokines in inflammatory conditions. Pro-inflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) induce damage in brain endothelial cells and BBB dysfunction which contribute to neuronal injury. The neuroprotective effects of α-melanocyte stimulating hormone (α-MSH) were investigated in experimental models, but there are no data related to the BBB. Based on our recent study, in which α-MSH reduced barrier dysfunction in human intestinal epithelial cells induced by TNF-α and IL-1β, we hypothesized a protective effect of α-MSH on brain endothelial cells...
2018: PeerJ
https://www.readbyqxmd.com/read/29779995/factors-predicting-postoperative-febrile-urinary-tract-infection-following-percutaneous-nephrolithotomy-in-prepubertal-children
#6
Onur Kaygısız, Nihat Satar, Ali Güneş, Hasan Serkan Doğan, Ahmet Erözenci, Ender Özden, Mehmet Mesut Pişkin, Deniz Demirci, Serdar Toksöz, Tufan Çiçek, Serhat Gürocak, Hakan Kılıçarslan, Oktay Nazlı, Aykut Kefi, Volkan İzol, Ali Beytur, Şaban Sarıkaya, Serdar Tekgül, Bülent Önal
BACKGROUND: Predictive tables and scoring systems can predict stone clearance. However, there is a paucity of evidence regarding the prediction of complications during percutaneous nephrolithotomy (PCNL), particularly in children, which remains under-researched. To our knowledge, no studies have evaluated the risk factors for febrile urinary tract infection (FUTI) after pediatric PCNL. OBJECTIVES: To assess the predictive factors of FUTI in prepubertal children after PCNL and determine whether any prophylactic cephalosporins are superior for decreasing the FUTI rate...
May 5, 2018: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29779328/-effect-of-sirolimus-on-erythropoiesis-of-k562-cell-line-and-patients-with-pure-red-cell-aplasia-in-vitro
#7
C Yang, F F Chen, Z B Long, Y L Du, H M Li, M Chen, B Han
Objective: To understand the effect of sirolimus on the erythropoiesis of K562 cell line and bone marrow cells from pure red cell aplasia (PRCA) patients and normal controls. Methods: Different concentrations (10, 100, 1 000 nmol/L) of sirolimus were added to the K562 cell line or bone marrow cells from PRCA patients or normal controls and cultured 14 days for BFU-E formation. Meanwhile, sirolimus was also added to the serum treated PRCA bone marrow cells to cultivate for the same priod of time. Results: Neither K562 cells, bone marrow cells from PRCA patients or normal controls showed any difference when sirolimus was added to the culture system for BFU-E...
April 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29779099/the-differential-expression-of-adhesion-molecule-and-extracellular-matrix-genes-in-mesenchymal-stromal-cells-after-interaction-with-cord-blood-hematopoietic-progenitors
#8
L B Buravkova, E R Andreeva, M V Lobanova, E V Cotnezova, A I Grigoriev
The dynamics of the expression of genes encoding adhesion molecules, molecules of the connective tissue matrix, and its remodeling enzymes was studied in multipotent mesenchymal stromal cells (MSCs) from human adipose tissue after interaction with cord blood hematopoietic progenitors (HSPCs). An upregulation of ICAM1 and VCAM1, directly proportional to the coculture time (24-72 h), was found. After 72 h of culturing, a downregulation of the genes encoding the majority of matrix molecules (SPP1; COL6A2,7A1; MMP1,3; TIMP1,3; and HAS1) and cell-matrix adhesion molecules (ITGs) was revealed...
March 2018: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29778205/immunopathological-changes-and-apparent-recovery-from-infection-revealed-in-cattle-in-an-experimental-model-of-johne-s-disease-using-a-lyophilised-culture-of-mycobacterium-avium-subspecies-paratuberculosis
#9
Douglas J Begg, Karren M Plain, Kumudika de Silva, Ratna Gurung, Alison Gunn, Auriol C Purdie, Richard J Whittington
Johne's disease (JD) or paratuberculosis is an economically significant, chronic enteropathy of ruminants caused by Mycobacterium avium subspecies paratuberculosis (MAP). Experimental models of JD in cattle are logistically challenging due to the need for long term monitoring, because the clinical disease can take years to manifest. Three trials were undertaken, the largest involving 20 cattle exposed orally to a low dose of C strain MAP and 10 controls studied for 4.75 years. Frequent blood and faecal sampling was used to monitor immunological and infection parameters, and intestinal biopsies were performed at two time points during the subclinical disease phase...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29777205/oviduct-epithelium-induces-interferon-tau-in-bovine-day-4-embryos-which-generates-an-anti-inflammatory-response-in-immune-cells
#10
Anup K Talukder, Mohammad B Rashid, Mohamed S Yousef, Kazuya Kusama, Takashi Shimizu, Masayuki Shimada, Susan S Suarez, Kazuhiko Imakawa, Akio Miyamoto
Recent studies indicate that communication between the bovine embryo and the mother begins in the oviduct. Here, we aimed to investigate the effect of embryos on bovine oviducts for their immune responses using an in vitro model. First, zygotes were cultured with or without bovine oviduct epithelial cells (BOECs) for 4 days, when embryos had reached the 16-cell stage. At that time, we detected interferon-tau (IFNT) in embryos co-cultured with BOECs, but not in embryos cultured alone. Next, peripheral blood mononuclear cells (PBMCs) were incubated either in media from embryo alone cultures or from co-cultures of embryos with BOECs...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776363/rapid-detection-of-carbapenemase-activity-of-enterobacteriaceae-isolated-from-positive-blood-cultures-by-maldi-tof-ms
#11
Jiajia Yu, Jingxian Liu, Yuanrui Li, Jing Yu, Weinan Zhu, Ying Liu, Lisong Shen
BACKGROUND: Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been proved to be a useful tool for identification of pathogens directly isolated from blood cultures in clinical microbiology laboratories. β-Lactam antibiotics are commonly used for treatment of bloodstream infections caused by Enterobacteriaceae strains, and carbapenem is the superlative class of β-lactam antibiotics. Since the carbapenem resistance rate of Enterobacteriaceae strains raised year by year, efficient detection of carbapenemase activity and timely delivery of carbapenem susceptibility reports of Enterobacteriaceae strains isolated from blood cultures is important for clinicians...
May 18, 2018: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/29775092/a-prospective-multi-centre-us-clinical-trial-to-determine-accuracy-of-febridx-point-of-care-testing-for-acute-upper-respiratory-infections-with-and-without-a-confirmed-fever
#12
Nathan I Shapiro, Wesley H Self, Jeffrey Rosen, Stephan C Sharp, Michael R Filbin, Peter C Hou, Amisha D Parekh, Michael C Kurz, Robert Sambursky
BACKGROUND: FebriDx is a 10-minute disposable point-of-care test designed to identify clinically significant systemic host immune responses and aid in the differentiation of bacterial and viral respiratory infection by simultaneously detecting C-reactive protein (CRP) and myxovirus resistance protein A (MxA) from a fingerstick blood sample. FebriDx diagnostic accuracy was evaluated in the emergency room and urgent care setting. METHODS: A prospective, multicentre, observational cohort study of acute upper respiratory tract infections (URIs), with and without a confirmed fever at the time of enrolment, was performed to evaluate the diagnostic accuracy of FebriDx to identify clinically significant bacterial infection with host response and acute pathogenic viral infection...
May 18, 2018: Annals of Medicine
https://www.readbyqxmd.com/read/29774349/role-of-arsenic-3-oxidation-state-methyltransferase-in-arsenic-mediated-apl-treatment-an-in-vitro-investigation
#13
Yasen Maimaitiyiming, Chao Wang, Shi Xu, Khairul Islam, Ye Jia Chen, Chang Yang, Qian Qian Wang, Hua Naranmandura
Arsenic (+3 oxidation state) methyltransferase (AS3MT) is a key enzyme responsible for arsenic metabolism in humans, which facilitates conversion of arsenic trioxide (As2O3) to more reactive metabolites such as monomethylarsonous acid (MMAIII) and dimethylarsinous acid (DMAIII). However, it is unclear whether the biotransformation of arsenic by AS3MT contributes to the promotion of acute promyelocytic leukemia (APL) therapy. In order to understand the probable role of AS3MT in APL patients, we evaluated the effects of arsenite (iAsIII) and three mixed arsenicals (i...
May 18, 2018: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/29773141/the-application-of-the-hyper-fluorescent-sensor-in-the-real-time-detection-of-h-2-o-2-in-babesia-bovis-merozoites-in-vitro
#14
Masahito Asada, Hassan Hakimi, Shin-Ichiro Kawazu
In recent years, genetically encoded fluorescent probes have allowed a dramatic advancement in time-lapse imaging, enabling this imaging modality to be used to investigate intracellular events in several apicomplexan parasite species. In this study, we constructed a plasmid vector to stably express a genetically encoded H2 O2 sensor probe called HyPer in Babesia bovis. The HyPer-transfected parasite population was successfully developed and subjected to a time-lapse imaging analysis under in vitro culture conditions...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29771414/extracellular-vesicles-promote-esophageal-cancer-progression-by-delivering-lnczeb1-as1-between-cells
#15
Y-G Zhang, M-W Zhou, L Bai, R-Y Han, K Lv, Z Wang
OBJECTIVE: To explore the expression of extracellular vesicle-derived lncZEB1-AS1 in esophageal cancer and its role in esophageal cancer progression. PATIENTS AND METHODS: The extracellular vesicles (EVs) from esophageal cancer patients (n = 26) and normal subjects (n = 26) were isolated by differential centrifugation. The expression of lncZEB1-AS1 in EVs was detected by Real-time PCR (polymerase chain reaction). The clinical data of normal subjects and patients were analyzed...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29768557/is-it-possible-to-perform-bacterial-identification-and-antimicrobial-susceptibility-testing-with-a-positive-blood-culture-bottle-for-quick-diagnosis-of-bloodstream-infections
#16
Tamily Cristina Lemos, Laura Lúcia Cogo, Adriane Cheschin Maestri, Milena Hadad, Keite da Silva Nogueira
INTRODUCTION: Bloodstream infections can be fatal, and timely identification of the etiologic agent is important for treatment. METHODOLOGY: An alternative method, consisting of direct identification and susceptibility testing of blood culture bottles using the automated VITEK 2® system, was assessed. RESULTS: All 37 of the Gram-negative bacilli (GNB) identifications and 57.1% of the 28 Gram-positive cocci (GPC) identifications matched those obtained with standard methods...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29768547/clinical-outcomes-and-risk-factors-for-death-from-disseminated-histoplasmosis-in-patients-with-aids-who-visited-a-high-complexity-hospital-in-campo-grande-ms-brazil
#17
Barbara Cristina Scarcelli Boigues, Anamaria Mello Miranda Paniago, Gláucia Moreira Espíndola Lima, Maina de Oliveira Nunes, Silvia Naomi de Oliveira Uehara
INTRODUCTION: Disseminated histoplasmosis (DH) is a systemic mycosis caused by Histoplasma capsulatum (H. capsulatum) and is characterized by progressive and fatal evolution in immunocompromised patients. Moreover, it is considered an AIDS-defining disease. METHODS: We performed an observational, analytical, retrospective study to identify the clinical outcomes and risk factors for death from DH in patients with AIDS at an infectious diseases service facility in Brazil between September 2011 and July 2016...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29766201/selenium-deficiency-inhibits-differentiation-and-immune-function-and-imbalances-the-th1-th2-of-dendritic-cells
#18
Zhepeng Sun, Zhe Xu, Dongxu Wang, Haidong Yao, Shu Li
Selenium (Se) deficiency inhibits immune cell differentiation, affects immune response, and leads to cellular and humoral immune dysfunction. However, the impact of Se deficiency on the differentiation and Th1/Th2 balance of dendritic cells is still unclear. In this study, we replicated a model of Se-deficient chickens by feeding the chickens with a low-Se diet (i.e., the content of Se is 0.008 mg per kg diet). On this basis, we explored the effect of Se deficiency on the differentiation of chicken dendritic cells by induction culture of peripheral blood monocyte cells...
May 16, 2018: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/29765087/fabrica-a-bioreactor-platform-for-printing-perfusing-observing-stimulating-3d-tissues
#19
Lester J Smith, Ping Li, Mark R Holland, Burcin Ekser
We are introducing the FABRICA, a bioprinter-agnostic 3D-printed bioreactor platform designed for 3D-bioprinted tissue construct culture, perfusion, observation, and analysis. The computer-designed FABRICA was 3D-printed with biocompatible material and used for two studies: (1) Flow Profile Study: perfused 5 different media through a synthetic 3D-bioprinted construct and ultrasonically analyzed the flow profile at increasing volumetric flow rates (VFR); (2) Construct Perfusion Study: perfused a 3D-bioprinted tissue construct for a week and compared histologically with a non-perfused control...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29763469/rapid-diagnosis-of-bloodstream-infections-in-the-critically-ill-evaluation-of-the-broad-range-pcr-esi-ms-technology
#20
Martina Tassinari, Silvia Zannoli, Patrizia Farabegoli, Maria Federica Pedna, Anna Pierro, Antonio Mastroianni, Riccardo Fontan, Luciano Luongo, Giuseppe Sarnataro, Elisa Menegatti, Assunta Caruso, Vittorio Sambri
Bloodstream infection (BSI) and associated sepsis represent a major source of mortality in industrialized countries. Prompt treatment with targeted antibiotics affects both the financial impact and the clinical outcome of BSI: every hour gained in initiating the correct antimicrobial therapy significantly increases the probability of patient survival. However, the current standard-of-care, which depends on blood culture-based diagnosis, are often unable to provide such a fast response. Fast and sensitive molecular techniques for the detection of sepsis-related pathogens from primary blood samples are strongly needed...
2018: PloS One
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