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Jiawei Wang, Bingjiao Yang, André Leier, Tatiana T Marquez-Lago, Morihiro Hayashida, Andrea Rocker, Zhang Yanju, Tatsuya Akutsu, Kuo-Chen Chou, Richard A Strugnell, Jiangning Song, Trevor Lithgow
Motivation: Many Gram-negative bacteria use type VI secretion systems (T6SS) to export effector proteins into adjacent target cells. These secreted effectors (T6SEs) play vital roles in the competitive survival in bacterial populations, as well as pathogenesis of bacteria. Although various computational analyses have been previously applied to identify effectors secreted by certain bacterial species, there is no universal method available to accurately predict T6SS effector proteins from the growing tide of bacterial genome sequence data...
March 14, 2018: Bioinformatics
Christine A DeForest, Virginia Blackman, John E Alex, Lauren Reeves, Alejandra Mora, Crystal Perez, Joseph Maddry, Domenique Selby, Benjamin Walrath
Introduction: Military prehospital and en route care (ERC) directly impacts patient morbidity and mortality. Provider knowledge and skills are critical variables in the effectiveness of ERC. No Navy doctrine defines provider choice for patient transport or requires standardized provider training. Frequently, Search and Rescue Medical Technicians (SMTs) and Navy Nurses (ERC RNs) are tasked with this mission though physicians have also been used. Navy ERC provider training varies greatly by professional role...
March 14, 2018: Military Medicine
Gillian A Ryan, Sarah M Nicholson, John J Morrison
Vaginal birth after caesarean (VBAC) delivery remains a controversial topic, and one for which there is a lack of robust data to guide clinicians and parturients regarding their best option for mode of delivery in a subsequent pregnancy. In many developed countries the trend observed in recent years is that of progressively reduced VBAC rates, and hence increased use of elective repeat caesarean section (ERCS). This factor has contributed, more than any other, to the disproportionately high caesarean section (CS) rates in many countries...
March 7, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Rui Yang, Jing Tian, Desheng Wang, Chris Blanchard, Zhongkai Zhou
The effect of chitosan decoration on the transport of epigallocatechin (EGC)-encapsulated ferritin cage across the Caco-2 cells was investigated. After the encapsulation of EGC in apo-red bean (adzuki) ferritin (apoRBF), the EGC-loaded apoRBF nanoparticle (ER) was fabricated with an encapsulation ratio of 11.6% (w/w). The results indicated that different chitosan molecules (with molecular weights of 980, 4600, 46 000, and 210 000 Da) could attach onto the apoRBF via electrostatic interactions to form ER-chitosan complexes (ERCs) (ERCs980 , ERCs4600 , ERCs46000 , and ERCs210000 )...
March 15, 2018: Food & Function
Hyun Young Woo, In Seok Lee, Jae Hyuck Chang, Seung Bae Youn, Si Hyun Bae, Jong Young Choi, Ho Jong Chun, Young Kyoung You, Dong Goo Kim, Seung Kew Yoon
Background/Aims: Biliary complications are the most common donor complication following living donor liver transplantation (LDLT). The aim of this study is to investigate the long-term outcomes of biliary complications in right lobe adult-to-adult LDLT donors, and to evaluate the efficacy of endoscopic treatment of these donors. Methods: The medical charts of right lobe donors who developed biliary complications between June 2000 and January 2008 were retrospectively reviewed...
March 14, 2018: Korean Journal of Internal Medicine
Maria Gomes Fernandes, Monika Bialecka, Daniela C F Salvatori, Susana M Chuva de Sousa Lopes
STUDY QUESTION: Which set of antibodies can be used to identify migratory and early post-migratory human primordial germ cells (hPGCs)? STUDY FINDING: We validated the specificity of 33 antibodies for 31 markers, including POU5F1, NANOG, PRDM1 and TFAP2C as specific markers of hPGCs at 4.5 weeks of development of Carnegie stage (CS12-13), whereas KIT and SOX17 also marked the intra-aortic hematopoietic stem cell cluster in the aorta-gonad-mesonephros (AGM). WHAT IS KNOWN ALREADY: The dynamics of gene expression during germ cell development in mice is well characterized and this knowledge has proved crucial to allow the development of protocols for the in-vitro derivation of functional gametes...
March 8, 2018: Molecular Human Reproduction
Zhen Chen, Pei Zhao, Fuyi Li, André Leier, Tatiana T Marquez-Lago, Yanan Wang, Geoffrey I Webb, A Ian Smith, Roger J Daly, Kuo-Chen Chou, Jiangning Song
Summary: Structural and physiochemical descriptors extracted from sequence data have been widely used to represent sequences and predict structural, functional, expression and interaction profiles of proteins and peptides as well as DNAs/RNAs. Here, we present iFeature, a versatile Python-based toolkit for generating various numerical feature representation schemes for both protein and peptide sequences. iFeature is capable of calculating and extracting a comprehensive spectrum of 18 major sequence encoding schemes that encompass 53 different types of feature descriptors...
March 8, 2018: Bioinformatics
Richard G Held, Pascal S Kaeser
Synaptic vesicle exocytosis relies on the tethering of release ready vesicles close to voltage-gated Ca2+ channels and specific lipids at the future site of fusion. This enables rapid and efficient neurotransmitter secretion during presynaptic depolarization by an action potential. Extensive research has revealed that this tethering is mediated by an active zone, a protein dense structure that is attached to the presynaptic plasma membrane and opposed to postsynaptic receptors. Although roles of individual active zone proteins in exocytosis are in part understood, the molecular mechanisms that hold the protein scaffold at the active zone together and link it to the presynaptic plasma membrane have remained unknown...
February 2018: Open Biology
Per K Eide, Geir Ringstad
The glymphatic system plays a key role for clearance of waste solutes from the rodent brain. We recently found evidence of glymphatic circulation in the human brain when using magnetic resonance imaging (MRI) contrast agent as cerebrospinal fluid (CSF) tracer in conjunction with multiple MRI acquisitions (gMRI). The present study explored the hypothesis that reduced glymphatic clearance in entorhinal cortex (ERC) may be instrumental in idiopathic normal pressure hydrocephalus (iNPH) dementia. gMRI acquisitions were obtained over a 24-48 h time span in cognitively affected iNPH patients and non-cognitively affected patients with suspected CSF leaks...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
Kaan Yusufoğlu, Mehmet Özgür Erdoğan, İsmail Tayfur, Mustafa Ahmet Afacan, Şahin Çolak
Background/aim: This study aimed to evaluate traumatic thorax complications in post-CPR patients and to investigate whether or not there has been a decrease in these complications since the adoption of current chest compression recommendations. Materials and methods: Post-CPR patients with return of spontaneous circulation (ROSC) were admitted between January 2014 and January 2016 were analyzed retrospectively. Patients admitted to the ED in 2014 were resuscitated according to 2010 AHA CPR guidelines, while those admitted to the ED in 2015 were resuscitated according to current ERC CPR guidelines...
February 23, 2018: Turkish Journal of Medical Sciences
Firas Al-Kawas, Harry Aslanian, John Baillie, Filip Banovac, Jonathan M Buscaglia, James Buxbaum, Amitabh Chak, Bradford Chong, Gregory A Coté, Peter V Draganov, Kulwinder Dua, Valerie Durkalski, B Joseph Elmunzer, Lydia D Foster, Timothy B Gardner, Brian S Geller, Priya Jamidar, Laith H Jamil, Rajesh N Keswani, Mouen A Khashab, Gabriel D Lang, Ryan Law, David Lichtenstein, Simon K Lo, Sean McCarthy, Silvio Melo, Daniel Mullady, Jose Nieto, J Bayne Selby, Vikesh K Singh, Rebecca L Spitzer, Brian Strife, Paul Tarnaksy, Jason R Taylor, Jeffrey Tokar, Andrew Y Wang, April Williams, Field Willingham, Patrick Yachimski
BACKGROUND: The optimal approach to the drainage of malignant obstruction at the liver hilum remains uncertain. We aim to compare percutaneous transhepatic biliary drainage (PTBD) to endoscopic retrograde cholangiography (ERC) as the first intervention in patients with cholestasis due to suspected malignant hilar obstruction (MHO). METHODS: The INTERCPT trial is a multi-center, comparative effectiveness, randomized, superiority trial of PTBD vs. ERC for decompression of suspected MHO...
February 14, 2018: Trials
Javier Ripollés-Melchor, Francesco Carli, Miquel Coca-Martínez, Macarena Barbero-Mielgo, José M Ramírez-Rodríguez, José A García-Erce
In the era of perioperative medicine, important advances have been made in the perioperative care of patients, usually within those known as Enhanced Recovery After Surgery (ERAS) protocols. These have led to a decrease in postoperative complications and the duration of hospital stays; however, there is still a lack of preoperative care, which could make perioperative medicine more prominent. Elderly patients, malnourished, anaemic and ones with a low physical function before surgery are likely to have sub-optimal recovery from surgery...
February 14, 2018: Minerva Anestesiologica
Joyce Moreira de Souza, Letícia Martins Rabelo, Denise Braga Gomes de Faria, Abraão Tiago Batista Guimarães, Wellington Alves Mizael da Silva, Thiago Lopes Rocha, Fernanda Neves Estrela, Thales Quintão Chagas, Bruna de Oliveira Mendes, Guilherme Malafaia
Previous studies have individually confirmed the toxic effects from different pollutants on mammals. However, effects resulting from the exposure of these animals to multi-pollutant mixes have not been studied so far. Thus, the aim of the current study is to assess the effect from the chronic exposure (105days) of C57Bl/6J mice to a mix of pollutants on their response to potential predators. In order to do so, the following groups were formed: "control", "Mix 1× [compounds from 15 pollutants identified in surface waters at environmentally relevant concentration (ERC)]", "Mix 10×" and "Mix 25×" (concentrations 10 and 25 times higher than the ERC)...
February 9, 2018: Science of the Total Environment
Amy Hosmer, Mohamed M Abdelfatah, Ryan Law, Todd H Baron
Background and study aims:  Endoscopic retrograde cholangiography (ERC) in patients with complex surgically-altered anatomy (SAA) is technically demanding and has limitations. Developments in EUS-guided procedures allow alternative approaches for patients with altered gastrointestinal anatomy and biliary lithiasis. Patients and methods:  Single-center, retrospective review of prospectively entered patients with SAA who underwent EUS-guided hepaticogastrostomy (HGS) followed by an interval antegrade endoscopic clearance of biliary lithiasis...
February 2018: Endoscopy International Open
Jakob Wollborn, Eva Ruetten, Bjoern Schlueter, Joerg Haberstroh, Ulrich Goebel, Martin A Schick
AIM: Standardized modeling of cardiac arrest and cardiopulmonary resuscitation (CPR) is crucial to evaluate new treatment options. Experimental porcine models are ideal, closely mimicking human-like physiology. However, anteroposterior chest diameter differs significantly, being larger in pigs and thus poses a challenge to achieve adequate perfusion pressures and consequently hemodynamics during CPR, which are commonly achieved during human resuscitation. The aim was to prove that standardized resuscitation is feasible and renders adequate hemodynamics and perfusion in pigs, using a specifically designed resuscitation board for a pneumatic chest compression device...
January 22, 2018: American Journal of Emergency Medicine
Kazuhito Uemura, Hiroaki Takahashi, Kazuhiro Mino, Takuji Ota, Shunsuke Shichi
We report a case of combined hepatocellular and cholangiocarcinoma with hemobilia. A 65-year-old man was admitted to our hospital because of pain in the right hypochondralrigion. Abdominal ultrasonography revealed bile duct dilatation in the lateral segment of liver and blood test findings showed elevation of the hepatobiliary enzyme, so ERC was performed and hemorrhage from the duodenal papilla was observed. In cholangiography, dilation of the left hepatic bile duct and filling defect were observed, and in the peroral cholangioscopy, a hemorrhagic papillary elevated lesion was identified in the left hepatic bile duct and diagnosed as adenocarcinoma as a result of biopsy...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
C R Kerth, K R Wall, S B Smith, T R Whitney, J L Glasscock, J T Sawyer
Effects of using ground woody plants in Rambouillet wether lamb (n = 48) feedlot diets on carcass characteristics, adipose tissue fatty acid composition, and sensory panel traits were evaluated. In a randomized design study with 2 feeding periods (Period 1 = fed a 70% concentrate diet from d 0 to 27 d; Period 2 = fed an 86% concentrate diet from d 28 to 57), lambs were individually fed 6 diets that differed only by roughage source (n = 8 animals/treatment; initial BW = 32.9 ± 3.2 kg): cottonseed hulls (CSH; control) or ground wood consisting of either redberry (RED), blueberry (BLUE), one-seed (ONE), or eastern red cedar (ERC) Juniperus spp...
January 29, 2018: Journal of Animal Science
(no author information available yet)
Steven Spoel graduated with a master's degree in biology from Utrecht University in the Netherlands before moving to Duke University, Durham, NC, for his PhD with Xinnian Dong. There, he worked on plant immune response pathways. In 2008, Steven moved to Edinburgh, UK, to work with Gary Loake with the help of an EMBO Long-Term Fellowship and a Netherlands Science Foundation Rubicon Fellowship. In 2010, he set up his own laboratory in Edinburgh as a Royal Society University Research Fellow. He has been awarded a BBSRC New Investigator Award and an ERC Starting Grant, and has been the recipient of the New Phytologist Tansley Medal for Excellence in Plant Science (2009) and an Early Excellence in Science Award from the Bayer Foundation (2013)...
January 29, 2018: Journal of Cell Science
Gábor Bari, Dániel Érces, Gabriella Varga, Szilárd Szűcs, Gábor Bogáts
Acute pericardial tamponade is one of the most emergent clinical scenarios in cardiac surgery. With numerous causes in the background, pericardial tamponade can lead to cardiogenic shock and death. In modern diagnostic era, the recognition of pericardial tamponade is simple, but its management and the long-term effects can still be challenging. Without the detailed understanding of the pathophysiological pathways diagnostic and therapeutic management plans of pericardial tamponade is very difficult. The aim of this review was to give a complex picture of pericardial tamponade, from its role in medical history to pathophysiology and its significance in surgical experimental models...
February 2018: Orvosi Hetilap
Jacek Smereka, Halla Kaminska, Wojciech Wieczorek, Marek Dabrowski, Jerzy Robert Ladny, Kurt Ruetzler, Lukasz Szarpak, Oliver Robak, Michael Frass
BACKGROUND: Early bystander cardiopulmonary resuscitation (CPR) for cardiac arrest is crucial in the chain of survival. Cardiac arrest in infants is rare but CPR is also performed in severe bradycardia. The European Resuscitation Council (ERC) and American Heart Association (AHA) guidelines recommend starting CPR and continuing it until the heart muscle is sufficiently oxygenated and regains sufficient contractility and function. Among the techniques of CPR that can be applied in newborns, the most common and therefore recommended by the ERC and AHA are the two-finger technique and two-thumb technique...
January 19, 2018: Kardiologia Polska
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