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https://www.readbyqxmd.com/read/29677411/shift-in-drug-vs-alcohol-prevalence-in-milwaukee-county-motor-vehicle-decedents-2010-2016
#1
Kiran A Faryar Faryarka Ucmail Uc Edu, Sara A Kohlbeck, Sara J Schreiber
OBJECTIVE: The purpose of this study is to examine the prevalence of alcohol and nonalcohol drugs in motor vehicle crash (MVC) decedents in Milwaukee County, Wisconsin. METHODS: A retrospective review of MVC decedents in Milwaukee County from 2010 to 2016 was performed. Substances were divided into 5 categories based on chemical composition and clinical effects: alcohol, cocaine and its metabolite benzoylecgonine, opioids, cannabinoids, amphetamines and methamphetamines...
March 2018: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29676596/lung-dendritic-cells-drive-nk-cytotoxicity-in-chronic-obstructive-pulmonary-disease-via-il-15r%C3%AE
#2
Donna K Finch, Valerie R Stolberg, John Ferguson, Henrih Alikaj, Mohamed R Kady, Bradley W Richmond, Vasiliy V Polosukhin, Timothy S Blackwell, Lisa McCloskey, Jeffrey L Curtis, Christine M Freeman
RATIONALE: Lung natural killer (NK) cells kill a greater percentage of autologous lung parenchymal cells in COPD than in non-obstructed smokers. To become cytotoxic, NKs require priming, typically by dendritic cells (DC), but whether priming occurs in the lungs in COPD is unknown. METHODS: We used lung tissue and in some cases peripheral blood from patients undergoing clinically-indicated resections to determine in vitro killing of CD326+ lung epithelial cells by isolated lung CD56+ NKs...
April 20, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29675020/systemic-inflammation-and-cardiovascular-comorbidity-in-psoriasis-patients-causes-and-consequences
#3
REVIEW
Wolf-Henning Boehncke
Psoriasis is a common inflammatory skin disease characterized by the appearance of red scaly plaques that can affect any part of the body. High prevalence, chronicity, disfiguration, disability, and associated comorbidity make it a challenge for clinicians of multiple specialties. Likewise, its complex pathogenesis, comprising inflammation, hyperproliferation, and angioneogenesis, intrigues numerous scientific disciplines, namely, immunology. From a clinical perspective, the severity of psoriasis is highlighted by its increased mortality, with cardiovascular diseases contributing the highest excess risk...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29674197/villous-explants-from-preeclamptic-placentas-induce-sflt1-in-pbmcs-an-ex-vivo-co-culture-study
#4
Stephen Kyle Gonzales, Martina Badell, Hanh Cottrell, Bassam Rimawi, Venkataraman Deepak, Neil Sidell, Augustine Rajakumar
OBJECTIVES: Soluble Flt1 (sFlt1) is an anti-angiogenic protein linked to the pathology of preeclampsia (PE). While the placenta serves as the major organ producing sFlt1 during normal pregnancy, peripheral blood mononuclear cells (PBMCs), endothelial cells, and stromal cells also produce sFlt1. The key question is 'what drives the overexpression of sFlt1 observed during PE?' In the present work we show evidence for sFlt1 over-expression in PBMCs due to interaction with placental villi from PE patients...
February 25, 2018: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29671676/effects-of-gabapentin-pregabalin-and-gastroretentive-gabapentin-on-simulated-driving-daytime-sedation-and-cognition
#5
Peter Schmidt, Srinivas Rao
AIM: Randomized Phase I study examining the effects of gabapentinoids gabapentin, pregabalin and gastroretentive gabapentin on simulated driving performance, sedation and cognitive function in healthy volunteers (n = 32). METHODS: Driving attentiveness, sleepiness and cognition were evaluated prior to subjects receiving study doses. Blood samples were collected during each treatment. RESULTS: Subjects receiving gastroretentive gabapentin showed less change in variation in lateral lane position (p = 0...
April 19, 2018: Pain Management
https://www.readbyqxmd.com/read/29670207/homeostatic-proliferation-leads-to-telomere-attrition-and-increased-pd-1-expression-after-autologous-hematopoietic-sct-for-systemic-sclerosis
#6
Lucas C M Arruda, João R Lima-Júnior, Emmanuel Clave, Daniela A Moraes, Corinne Douay, Isabelle Fournier, Hélène Moins-Teisserenc, Dimas T Covas, Belinda P Simões, Dominique Farge, Antoine Toubert, Kelen C R Malmegrim, Maria Carolina Oliveira
In the months that follow autologous hematopoietic stem cell transplantation (AHSCT), lymphopenia drives homeostatic proliferation, leading to oligoclonal expansion of residual cells. Here we evaluated how replicative senescent and exhausted cells associated with clinical outcomes of 25 systemic sclerosis (SSc) patients who underwent AHSCT. Patients were clinically monitored for skin (modified Rodnan's skin score, mRSS) and internal organ involvement and had blood samples collected before and semiannually, until 3 years post-AHSCT, for quantification of telomere length, CD8+ CD28- and PD-1+ cells, and serum cytokines...
April 18, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29669922/origin-antigenicity-and-function-of-a-secreted-form-of-orf2-in-hepatitis-e-virus-infection
#7
Xin Yin, Dong Ying, Sébastien Lhomme, Zimin Tang, Christopher M Walker, Ningshao Xia, Zizheng Zheng, Zongdi Feng
The enterically transmitted hepatitis E virus (HEV) adopts a unique strategy to exit cells by cloaking its capsid (encoded by the viral ORF2 gene) and circulating in the blood as "quasi-enveloped" particles. However, recent evidence suggests that the majority of the ORF2 protein present in the patient serum and supernatants of HEV-infected cell culture exists in a free form and is not associated with virus particles. The origin and biological functions of this secreted form of ORF2 (ORF2S ) are unknown...
April 18, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29668907/the-mineralocorticoid-receptor-as-a-modulator-of-innate-immunity-and-atherosclerosis
#8
Charlotte D C C van der Heijden, Jaap Deinum, Leo A B Joosten, Mihai G Netea, Niels P Riksen
The mineralocorticoid receptor (MR) is a member of the nuclear receptor steroid-binding family. The classical MR ligand aldosterone controls electrolyte and fluid homeostasis after binding in renal epithelial cells. However, more recent evidence suggests that activation of extrarenal MRs by aldosterone negatively impacts cardiovascular health independent of its effects on blood pressure: high levels of aldosterone associate with an increased cardiovascular event rate, where MR antagonists exert beneficial effects on cardiovascular mortality...
April 16, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29668325/is-cushing-mechanism-a-dynamic-blood-pressure-stabilizing-system-insights-from-granger-causality-analysis-of-spontaneous-blood-pressure-and-cerebral-blood-flow
#9
Saqib Saleem, Paul D Teal, Connor A Howe, Michael M Tymko, Philip N Ainslie, Yu-Chieh Tzeng
Blood pressure regulation is widely recognised as being integral to the control of end-organ perfusion but it remains unclear whether end-organ perfusion also plays a role in driving changes in blood pressure (BP). A randomized and placebo controlled study design was followed to examine the feedback relationships between very-low-frequency fluctuations in BP and cerebral blood flow (CBF) in humans under placebo treatment and α1-adrenergic blockade. To determine the causal relations among haemodynamic variables, BP, middle cerebral artery blood velocity (MCAv), and end-tidal CO2 time-series were decimated, low-pass filtered (<0...
April 18, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29667182/breathing-regulation-and-blood-gas-homeostasis-after-near-complete-lesions-of-the-retrotrapezoid-nucleus-in-adult-rats
#10
George M P R Souza, Roy Kanbar, Daniel S Stornetta, Stephen B G Abbott, Ruth L Stornetta, Patrice G Guyenet
The retrotrapezoid nucleus (RTN) is one of several CNS nuclei that contribute, in various capacities (e.g. CO2 detection, neuronal modulation) to the central respiratory chemoreflex (CRC). Here we test how important the RTN is to PCO2 homeostasis and breathing during sleep or wake. RTN Nmb positive neurons were killed with targeted microinjections of substance-P-saporin conjugate in adult rats. Under normoxia, rats with large RTN lesions (92 ± 4 % cell loss) had normal blood pressure (BP) and arterial pH but were hypoxic (-8 mmHg PaO2 ) and hypercapnic (+10 mmHg PaCO2 )...
April 18, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29666434/stable-transformation-of-babesia-bigemina-and-babesia-bovis-using-a-single-transfection-plasmid
#11
Marta G Silva, Donald P Knowles, Monica L Mazuz, Brian M Cooke, Carlos E Suarez
Babesia bigemina and Babesia bovis, are the two major causes of bovine babesiosis, a global neglected disease in need of improved methods of control. Here, we describe a shared method for the stable transfection of these two parasites using electroporation and blasticidin/blasticidin deaminase as a selectable marker. Stably transfected B. bigemina and B. bovis were obtained using a common transfection plasmid targeting the enhanced green fluorescent protein-BSD (egfp-bsd) fusion gene into the elongation factor-1α (ef-1α) locus of B...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29666009/in-vitro-validation-of-a-self-driving-aortic-turbine-venous-assist-device-for-fontan-patients
#12
Kerem Pekkan, Ibrahim Basar Aka, Ece Tutsak, Erhan Ermek, Haldun Balim, Ismail Lazoglu, Riza Turkoz
BACKGROUND: Palliative repair of single ventricle defects involve a series of open-heart surgeries where a single-ventricle (Fontan) circulation is established. As the patient ages, this paradoxical circulation gradually fails, because of its high venous pressure levels. Reversal of the Fontan paradox requires an extra subpulmonic energy that can be provided through mechanical assist devices. The objective of this study was to evaluate the hemodynamic performance of a totally implantable integrated aortic-turbine venous-assist (iATVA) system, which does not need an external drive power and maintains low venous pressure chronically, for the Fontan circulation...
March 11, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29660827/patient-blood-management-and-the-importance-of-the-transfusion-practitioner-role-to-embed-this-into-practice
#13
REVIEW
L Bielby, R L Moss
Patient blood management (PBM) is a widely established international initiative, with a multidisciplinary approach to reduce transfusion. The Transfusion Practitioner (TP) role is well embedded in the United Kingdom (UK) and Australia. The value of the TP in changing both culture and practice to implement an all-inclusive PBM approach to care will be discussed. The TP role was born from both a safety and haemovigilance culture, where the greatest identified risk to the patient undergoing a transfusion was human error...
April 16, 2018: Transfusion Medicine
https://www.readbyqxmd.com/read/29659874/carfentanil-in-impaired-driving-cases-and-the-importance-of-drug-seizure-data
#14
Nicholas B Tiscione, Ilene Alford
Drug seizures containing carfentanil continue to increase in Palm Beach County, FL, USA despite international efforts to control the distribution of the drug. The analysis of drug seizures from the county in 2016 and 2017 demonstrated that carfentanil was the most commonly identified fentanyl analog and was most often detected in combination with heroin, fentanyl, furanyl fentanyl and/or other fentanyl analogs. Carfentanil is an ultra-potent opioid requiring a method with adequate sensitivity for detection in blood specimens from impairment cases...
April 12, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29652545/strategies-for-optimal-cardiovascular-aging
#15
Douglas R Seals, Vienna E Brunt, Matthew J Rossman
This review summarizes the opening keynote presentation overview of the American Physiological Society conference on Cardiovascular Aging: New Frontiers and Old Friends held in Westminster, CO, in August 2017. Age is the primary risk factor for cardiovascular diseases (CVD). Without effective intervention, increased numbers of older adults in the future will translate to greater prevalence of CVD and related disorders. Advancing age increases the risk of CVD partly via direct effects on the heart and through increases in blood pressure; however, much of the risk is mediated by arterial dysfunction, including large elastic artery stiffening and both macro- and micro-vascular endothelial dysfunction...
April 13, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29651440/mast-cell-the-neglected-member-of-the-tumor-microenvironment-role-in-breast-cancer
#16
REVIEW
Angélica Aponte-López, Ezequiel M Fuentes-Pananá, Daniel Cortes-Muñoz, Samira Muñoz-Cruz
Mast cells are unique tissue-resident immune cells that secrete a diverse array of biologically active compounds that can stimulate, modulate, or suppress the immune response. Although mounting evidence supports that mast cells are consistently infiltrating tumors, their role as either a driving or an opposite force for cancer progression is still controversial. Particularly, in breast cancer, their function is still under discussion. While some studies have shown a protective role, recent evidence indicates that mast cells enhance blood and lymphatic vessel formation...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29650491/fecal-microbiota-composition-drives-immune-activation-in-hiv-infected-individuals
#17
Charles Preston Neff, Owen Krueger, Kathy Xiong, Sabrina Arif, Nichole Nusbacher, Jennifer M Schneider, Annie W Cunningham, Abigail Armstrong, Sam Li, Martin D McCarter, Thomas B Campbell, Catherine A Lozupone, Brent E Palmer
The inflammatory properties of the enteric microbiota of Human Immunodeficiency Virus (HIV)-infected individuals are of considerable interest because of strong evidence that bacterial translocation contributes to chronic immune activation and disease progression. Altered enteric microbiota composition occurs with HIV infection but whether altered microbiota composition or increased intestinal permeability alone drives peripheral immune activation is controversial. To comprehensively assess the inflammatory properties of HIV-associated enteric microbiota and relate these to systemic immune activation, we developed methods to purify whole fecal bacterial communities (FBCs) from stool for use in in vitro immune stimulation assays with human cells...
March 26, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29649445/chromatin-accessibility-based-characterization-of-the-gene-regulatory-network-underlying-plasmodium-falciparum-blood-stage-development
#18
Christa Geeke Toenhake, Sabine Anne-Kristin Fraschka, Mahalingam Shanmugiah Vijayabaskar, David Robert Westhead, Simon Jan van Heeringen, Richárd Bártfai
Underlying the development of malaria parasites within erythrocytes and the resulting pathogenicity is a hardwired program that secures proper timing of gene transcription and production of functionally relevant proteins. How stage-specific gene expression is orchestrated in vivo remains unclear. Here, using the assay for transposase accessible chromatin sequencing (ATAC-seq), we identified ∼4,000 regulatory regions in P. falciparum intraerythrocytic stages. The vast majority of these sites are located within 2 kb upstream of transcribed genes and their chromatin accessibility pattern correlates positively with abundance of the respective mRNA transcript...
April 11, 2018: Cell Host & Microbe
https://www.readbyqxmd.com/read/29643819/hmgb1-increases-il-1%C3%AE-production-in-vascular-smooth-muscle-cells-via-nlrp3-inflammasome
#19
Eun Jung Kim, So Youn Park, Seung Eun Baek, Min A Jang, Won Suk Lee, Sun Sik Bae, Koanhoi Kim, Chi Dae Kim
Vascular smooth muscle cells (VSMCs) are the major cell type in the blood vessel walls, and their phenotypic modulation is a key cellular event driving vascular remodeling. Although high mobility group box-1 (HMGB1) plays a pivotal role in inflammatory processes after vascular injuries, the importance of the links between VSMCs, HMGB1 and vascular inflammation has not been clarified. To prove the hypothesis that VSMCs might be active players in vascular inflammation by secreting inflammatory cytokines, we investigated the proinflammatory effects of HMGB1 and its intermediary signaling pathways in VSMCs...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29629873/a-maternally-sequestered-biopolymer-stabilized-vascular-endothelial-growth-factor-vegf-chimera-for-treatment-of-preeclampsia
#20
Omar C Logue, Fakhri Mahdi, Heather Chapman, Eric M George, Gene L Bidwell
BACKGROUND: Preeclampsia is a hypertensive syndrome that complicates 3% to 5% of pregnancies in the United States. Preeclampsia originates from an improperly vascularized and ischemic placenta that releases factors that drive systemic pathophysiology. One of these factors, soluble fms-like tyrosine kinase-1, is believed to sequester vascular endothelial growth factor (VEGF), leading to systemic endothelial dysfunction and hypertension. With the goal of targeting soluble fms-like tyrosine kinase-1 while simultaneously preventing fetal exposure to VEGF, we fused VEGF to elastin-like polypeptide, a biopolymer carrier that does not cross the placental barrier (ELP-VEGF)...
December 8, 2017: Journal of the American Heart Association
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