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https://www.readbyqxmd.com/read/29786783/a-xenograft-model-for-venous-malformation
#1
Jillian Goines, Xian Li, Yuqi Cai, Paula Mobberley-Schuman, Megan Metcalf, Steven J Fishman, Denise M Adams, Adrienne M Hammill, Elisa Boscolo
Vascular malformations are defects caused by the abnormal growth of the vasculature. Among them, venous malformation (VM) is an anomaly characterized by slow-flow vascular lesions with abnormally shaped veins, typically in sponge-like configuration. VMs can expand over years causing disfigurement, obstruction of vital structures, thrombosis, bleeding, and pain. Treatments have been very limited and primarily based on supportive care, compression garments, sclerotherapy, and/or surgical resection. Sirolimus treatment has recently shown efficacy in some patients with complicated vascular anomalies, including VMs...
May 21, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29786145/pilot-study-demonstrates-that-placental-histology-can-provide-an-additional-tool-for-diagnosing-early-onset-neonatal-sepsis
#2
J M A Ykema, E J D'Haens, M Havenith, J van Eyck, R A van Lingen, M A C Hemels
AIM: We explored whether placental histology could help to diagnose early-onset neonatal sepsis (EONS), guide clinical decision-making 48 hours after birth and reduce antibiotic use. METHODS: This study comprised 109 infants born at less than 32 weeks of gestation, who were admitted to the neonatal intensive care unit of Isala, Zwolle, The Netherlands, between January 2013 and December 2013. EONS was defined as clinical symptoms plus raised serial C-reactive protein >10 mg/L and a positive (proven EONS) or a negative (suspected EONS) blood culture...
May 22, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29786109/engulfment-of-platelets-delays-endothelial-cell-aging-via-girdin-and-its-phosphorylation
#3
Yong Lan, Yongjun Li, Dajun Li, Peng Li, Jiyang Wang, Yongpeng Diao, Guodong Ye, Yangfang Li
Endothelial cells are critical in angiogenesis and maintain the homeostasis of the blood‑brain barrier (BBB). Platelets (PLTs) are essential in vascular biology, including angiogenesis. The present study aimed to investigate the effect of PLTs on the aging of endothelial cells. Human brain microvascular endothelial cells (HBMECs) and human astrocytes were co‑cultured to mimic the BBB. Transmission electron microscopy was used to observe the engulfment of PLTs. Confocal microscopy was used to observe the co‑localization of PLTs, girders of actin filament (girdin) and phosphorylated (p‑)girdin...
May 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786104/correlation-between-the-expression-of-il%C3%A2-18-and-deep-venous-thrombosis
#4
Guangdi Li, Rudan Zhou, Xueling Zhao, Riguang Liu, Chuan Ye
The present study aimed to investigate the effect of the expression of interleukin (IL)‑18 and related markers on deep venous thrombosis (DVT) to examine their correlation. Sprague‑Dawley rats of different models were established and were randomly assigned into three groups. The expression of IL‑18, nuclear factor (NF)‑κB and von Willebrand factor (vWF) were detected in blood samples. The inferior vena cava (IVC) was ligated to establish the DVT model. Rat IL‑18 overexpression and inhibition vectors were constructed...
May 16, 2018: International Journal of Molecular Medicine
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
#5
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
#6
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
#7
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/29784085/clinical-practice-guideline-prevention-of-blood-culture-contamination
#8
(no author information available yet)
No abstract text is available yet for this article.
May 2018: Journal of Emergency Nursing: JEN: Official Publication of the Emergency Department Nurses Association
https://www.readbyqxmd.com/read/29784005/cd8-t-cells-mediate-the-antitumor-activity-of-frankincense-and-myrrh-in-hepatocellular-carcinoma
#9
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/29783922/lethal-phlegmonous-colitis
#10
John D Gilbert, Roger W Byard
A 52-year-old man died soon after admission to hospital with a severe metabolic acidosis and likely sepsis. He had a past history of alcohol abuse with withdrawal seizures. An abdominal computed tomography scan showed thickened bowel loops but no obvious ischaemic changes, and a blood culture yielded a pure growth of Escherichia coli. At autopsy, the liver showed well-established micro-nodular cirrhosis with steatosis. The peritoneal cavity contained 200 mL of turbid yellow-brown fluid, and the caecum and ascending colon were unusually thickened...
January 1, 2018: Medicine, Science, and the Law
https://www.readbyqxmd.com/read/29783881/lemierre-s-syndrome-a-case-study-with-a-short-review-of-literature
#11
Ken De Smet, Paul-Emile Claus, Gudrun Alliet, An Simpelaere, Geert Desmet
Objective and Importance Lemierre's syndrome (LS) is a rare condition that typically starts with a bacterial oropharyngeal infection complicated by a thrombophlebitis of the internal jugular vein and septic emboli to the lungs or other organs. The most common organism isolated is Fusobacterium necrophorum, although other causative organisms are isolated in rare cases. Case presentation We discuss a case of LS in a 44-year-old, previously healthy man presenting with an oropharyngeal infection. F. necrophorum was isolated from blood cultures and Computed tomography of the chest demonstrated septic emboli in the lungs...
May 21, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29783023/extended-spectrum-beta-lactamase-producing-enterobacteriaceae-infections-in-haematopoietic-stem-cell-transplant-recipients-epidemiology-and-molecular-characterization
#12
Molka Kharrat, Yosra Chebbi, Farah Ben Tanfous, Amel Lakhal, Saloua Ladeb, Tarek Ben Othmen, Wafa Achour
BACKGROUND: Extended spectrum β-lactamase producing Enterobacteriaceae (ESBL-E) are feared because they generate therapeutic difficulties and have high potential for dissemination. The purpose of our study was to investigate the epidemiology of these infections in hematopoietic stem cell transplant (HSCT) recipients and to determine the genes encoding ESBL. MATERIAL/METHODS: Our retrospective study concerned adult patients hospitalized at the National Bone Marrow Transplant Center and infected with ESBL-E post HSCT between january 2006 and december 2016...
May 18, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29782007/intraportal-transplantation-of-pancreatic-islets-in-mouse-model
#13
Rahul Khatri, Birte Hussmann, Divya Rawat, Ali Osman Gürol, Thomas Linn
Pancreatic islet transplantation to reduce hyperglycemia is highly successful in rodents with chemically-induced diabetes. The most common transplantation site in experimental islet transplantation is the kidney capsule. However, as less is known about the interaction of pancreatic islets with blood constituents, it also makes sense to utilize the portal vein approach in experimental islet transplantation. This protocol demonstrates an intraportal islet transplantation technique in NMRI nude mice. Streptozotocin (180 mg/kg) is injected intraperitoneally to induce hyperglycemia in recipient mice...
May 5, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781221/aberrant-expansion-and-function-of-t-follicular-helper-cell-subsets-in-igg4-related-disease
#14
Yu Chen, Wei Lin, Hongxian Yang, Mu Wang, Panpan Zhang, Ruie Feng, Hua Chen, Linyi Peng, Xuan Zhang, Yan Zhao, Xiaofeng Zeng, Fengchun Zhang, Wen Zhang, Peter E Lipsky
OBJECTIVE: To determine the number and function of Tfh cell subsets in IgG4-RD. METHODS: Mononuclear cells from peripheral blood and involved tissues of IgG4-RD patients were collected. Tfh cell subsets, mRNA levels of Bcl-6, Blimp-1 and IL-21 were tested. Immunohistochemistry and immunofluorescence techniques were used to assess the location of IL-21, Bcl-6, and (CD4+CXCR5+) Tfh cells in the involved tissues. Furthermore, by in vitro cell co-culture, the abilities of cTfh cell subsets to induce B cells proliferation, apoptosis, differentiation, and production of IgG4 were explored...
May 21, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29780851/top-questions-in-uncomplicated-non-staphylococcus-aureus-bacteremia
#15
Jesse D Sutton, Sena Sayood, Emily S Spivak
The Infectious Diseases Society of America infection-specific guidelines provide limited guidance on the management of focal infections complicated by secondary bacteremias. We address the following 3 commonly encountered questions and management considerations regarding uncomplicated bacteremia not due to Staphylococcus aureus : the role and choice of oral antibiotics focusing on oral beta-lactams, the shortest effective duration of therapy, and the role of repeat blood cultures.
May 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29780671/protection-of-cultured-brain-endothelial-cells-from-cytokine-induced-damage-by-%C3%AE-melanocyte-stimulating-hormone
#16
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/29780575/community-acquired-infection-to-raoultella-ornithinolytica-presenting-as-appendicitis-and-shock-in-a-healthy-individual
#17
Roy Hajjar, Frank Schwenter, Shih-Hann Su, Marie-Christine Gasse, Herawaty Sebajang
Raoultella ornithinolytica and Raoultella planticola are histamine-producing bacteria that are usually found in fish and water. They are associated with scombroid syndrome that presents with vomiting and flushing. A wide range of infections with these germs is reported, but mainly in fragile hospitalized patients with multiple comorbidities. We report the case of a 54-year-old healthy patient who presented with 24-hours abdominal pain, vomiting, flushing and shock. The abdominal examination showed guarding in the right lower quadrant (RLQ), and the abdominal CT scan images showed a thickened terminal ileum and a distended appendix...
May 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29779995/factors-predicting-postoperative-febrile-urinary-tract-infection-following-percutaneous-nephrolithotomy-in-prepubertal-children
#18
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
#19
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
#20
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
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