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https://www.readbyqxmd.com/read/28898511/mutations-in-the-major-gas-vesicle-protein-gvpa-and-impacts-on-gas-vesicle-formation-in-haloferax-volcanii
#1
Regine Knitsch, Marie Schneefeld, Kerstin Weitzel, Felicitas Pfeifer
Gas vesicles are proteinaceous, gas-filled nanostructures produced by some bacteria and archaea. The hydrophobic major structural protein GvpA forms the ribbed gas vesicle wall. An in-silico 3D-model of GvpA of the predicted coil-α1-β1-β2-α2-coil structure is available and implies that the two β-chains constitute the hydrophobic interior surface of the gas vesicle wall. To test the importance of individual amino acids in GvpA we performed 85 single substitutions and analysed these variants in Haloferax volcanii ΔA+Amut transformants for their ability to form gas vesicles (Vac(+) phenotype)...
September 12, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28887669/association-of-cannabis-stimulant-and-alcohol-use-with-mortality-prognosis-among-hiv-infected-men
#2
Joëlla W Adams, Kendall J Bryant, Jennifer E Edelman, David A Fiellin, Julie R Gaither, Adam J Gordon, Kirsha S Gordon, Kevin L Kraemer, Matthew J Mimiaga, Don Operario, Janet P Tate, Jacob J van den Berg, Amy C Justice, Brandon D L Marshall
Questionnaires over a 9-year study period (2002-2010) were used to characterize cannabis, stimulant, and alcohol use among 3099 HIV-infected men participating in the Veterans Aging Cohort Study (VACS) to determine whether use of these substances is associated with changes in the VACS Index, a validated prognostic indicator for all-cause mortality. At baseline, 18% of participants reported no substance use in the past year, 24% lower risk alcohol use only, 18% unhealthy alcohol use only, 15% cannabis use (with or without alcohol), and 24% stimulant use (with or without alcohol or cannabis)...
September 8, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28887001/major-findings-and-recent-advances-in-virus-like-particle-vlp-based-vaccines
#3
REVIEW
Mona O Mohsen, Lisha Zha, Gustavo Cabral-Miranda, Martin F Bachmann
Virus-like particles (VLPs) have made giant strides in the field of vaccinology over the last three decades. VLPs constitute versatile tools in vaccine development due to their favourable immunological characteristics such as their size, repetitive surface geometry, ability to induce both innate and adaptive immune responses as well as being safe templates with favourable economics. Several VLP-based vaccines are commercially available including vaccines against Human Papilloma Virus (HPV) such as Cervarix(®), Gardasil(®) & Gardasil9(®) and Hepatitis B Virus (HBV) including the 3rd generation Sci-B-Vac™...
September 5, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28881549/-study-on-the-immunogenicity-and-safety-of-recombinant-b-subunit-whole-cell-cholera-vaccine-infused-with-antacids-in-healthy-population-at-ages-of-2-6-years
#4
T Huang, R C Li, D P Liu
Objective: To assess the immunogenicity and safety of recombinant B-subunit/whole cell cholera vaccine (rBS/WC) oral cholera vaccine (Ora Vacs) infused with antacids in healthy population at ages of 2-6 years. Methods: Between December 2009 and January 2010, we recruited 900 volunteers aged 2-6 years od through giving out recruitment notice for the eligible children's parents from different vaccination clinics of Chongzuo city in Guangxi Zhuang Autonomous Region. This study was a randomized, double-blind, placebo-controlled trial, and subjects were randomly (2∶1) assigned to receive Cholera vaccine infused with antacids or placebo, and observed for safety...
September 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28870316/vacuum-assisted-headspace-solid-phase-microextraction-a-tutorial-review
#5
REVIEW
Elefteria Psillakis
Headspace solid-phase microextraction (HSSPME) sampling under vacuum conditions is a new and effective approach to accelerate the extraction kinetics of analytes with a low affinity for the headspace. Vacuum-assisted HSSPME (Vac-HSSPME) evolved from this approach and the resulting methods were always found to yield high extraction efficiencies and very good sensitivities within short sampling times and at mild temperatures. Vac-HSSPME preserves the simplicity of regular HSSPME and the only extra step required is that of air-evacuating the sample container before or after introducing the sample...
September 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28865586/comparison-of-two-different-vacuum-assisted-closure-vac-treatments-of-multiple-chronic-diabetic-foot-wounds-in-the-same-extremity
#6
Meriç Uğurlar, Mesut Mehmet Sönmez, Raffi Armağan, Osman Tuğrul Eren
BACKGROUND: The aim of the present study is to compare the clinical efficacy and safety of two different vacuum-assisted closure (VAC) applications in one center between two groups of patients with Wagner Grade 3-4 multiple chronic diabetic foot wounds. METHODS: The study was a randomized-controlled, prospective investigation between two groups of patients with Wagner Grade 3-4 multiple chronic diabetic foot wounds at single extremity. There were 10 patients in the first group receiving VAC treatment by means of Y-connector and 11 patients in the second group receiving bridge-VAC treatment...
September 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28857821/serum-st2-level-is-an-independent-predictor-of-all-cause-mortality-in-hiv-infected-patients-aquitaine-cohort-france
#7
Rodolphe Thiébaut, Sophie Hue, Fabien Le Marec, Jean Daniel Lelièvre, Michel Dupon, Emile Foucat, Estibaliz Lazaro, François Dabis, Pierre Duffau, Linda Wittkop, Mathieu Surenaud, Isabelle Pellegrin, Christine Lacabaratz, Fabrice Bonnet, Yves Lévy
OBJECTIVE: To evaluate the predictive value of Soluble Suppression of Tumorigenicity 2 (sST2), a decoy receptor of IL-33 involved in several inflammatory and immune diseases, for death in HIV infection. DESIGN: Patients enrolled in the ANRS CO3 Aquitaine Cohort, a prospective hospital-based cohort of HIV-1-infected patients, who had a plasma sample available in the bio-bank were systematically eligible. METHODS: sST2, sCD14 and IL6 were measured using Luminex® multiplex bead-based technology (R&D Systems) and a Bio-Plex 200 instrument (BioRad)...
August 28, 2017: AIDS
https://www.readbyqxmd.com/read/28852440/the-cardioprotective-effect-of-vanillic-acid-on-hemodynamic-parameters-malondialdehyde-and-infarct-size-in-ischemia-reperfusion-isolated-rat-heart-exposed-to-pm10
#8
Esmat Radmanesh, Mahin Dianat, Mohammad Badavi, Gholamreza Goudarzi, Seyyed Ali Mard
OBJECTIVES: Particulate matter (PM) exposure can promote cardiac ischemia and myocardial damage. The effects of PM10 on hemodynamic parameters, lipid peroxidation, and infarct size induced by ischemia-reperfusion injury and the protective effects of vanillic acid (VA) in isolated rat heart were investigated. MATERIALS AND METHODS: Eighty male Wistar rats (250-300 g) were divided into 8 groups (n=10): Control, Sham, VAc, VA, PMa (0.5 mg/kg PM, intratracheal instillation), PMb (2...
July 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28834127/successful-treatment-of-metastatic-alveolar-rhabdomyosarcoma-with-mgmt-gene-promoter-methylation-by-temozolomide-based-combination-chemotherapy
#9
Mariko Kinoshita, Ai Yamada, Daisuke Sawa, Sachiyo Kamimura, Mitsuru Miyachi, Hiroshi Moritake
A 3-year-old male presented with a large retroperitoneal mass and multiple metastases. Biopsy results suggested alveolar rhabdomyosarcoma bearing a methylated O6-methylguanine-DNA methyltransferase (MGMT) gene promoter. Serum microRNA-206 levels were elevated and remained high after three cycles of vincristine, dactinomycin, and cyclophosphamide (VAC). Replacement of vincristine, irinotecan, and temozolomide (VIT) for VAC induced a marked tumor reduction and normalization of the miR-206 levels. The patient completed 14 cycles of VIT with local radiotherapy and has been in remission for 31 months...
August 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28818780/prognostic-value-of-left-ventricular-arterial-coupling-in-elderly-patients-with-septic-shock
#10
Jing Yan, Xiaoyang Zhou, Bangchuan Hu, Shijin Gong, Yihua Yu, Guolong Cai, Li Li
PURPOSE: To investigate the predictive value of left ventricular-arterial coupling (VAC) for clinical prognosis of elderly patients with septic shock. MATERIALS AND METHODS: This was a single-center prospective cohort study of 63 elderly patients with septic shock treated between August 2014 and January 2016 at the 30-bed intensive care unit (ICU) of Zhejiang Hospital (China). Left VAC was evaluated by transthoracic echocardiography (TTE). End-systolic elastance (Ees) and left ventricular ejection fraction (LVEF) were measured; arterial elastance (Ea) was calculated...
August 10, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28812283/hydrodynamic-rupture-of-liver-in-combat-patient-a-case-of-successful-application-of-damage-control-tactic-in-area-of-the-hybrid-war-in-east-ukraine
#11
Igor Khomenko, Vitalii Shapovalov, Ievgen Tsema, Georgii Makarov, Roman Palytsia, Ievgen Zavodovskyi, Ivan Ishchenko, Andrii Dinets, Vladimir Mishalov
BACKGROUND: The hybrid war of Russia against Ukraine has been started in certain districts of Donetsk and Luhansk oblasts within the Donbas area in 2014. CASE PRESENTATION: We report a clinical case of a combat patient who was injured after the multiple launcher rocket system "Grad" shelling, diagnosed with hydrodynamic liver rupture followed by medical management with application of damage control (DC) tactic in conditions of hybrid war. The patient underwent relaparatomy, liver resection, endoscopic papillosphincterotomy, endoscopic retrograde cholecystopancreatography, stenting of the common bile duct, and VAC-therapy...
August 15, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28810893/subcutaneous-emphysema-of-the-leg-after-hardware-removal-and-bone-allografting-for-infected-non-union-of-the-distal-femur
#12
Vincenzo Denaro, Umile Giuseppe Longo, Giuseppe Salvatore, Vincenzo Candela, Nicola Maffulli
BACKGROUND: Infected non-unions of the supracondylar region of the femur are uncommon. Even though hardware removal is a common procedure, it may lead to complications, including neurovascular injury, refracture, worsening pain or recurrence of deformity. CASE PRESENTATION: We report on a male who developed subcutaneous emphysema of the leg after hardware removal and bone allografting for an infected non-union of the distal femur. He was managed by debridement of the surgical wound, antibiotic therapy, multiple fasciotomies, and application of a VAC (vacuum-assisted closure) system...
August 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28792191/comparison-of-vacuum-assisted-closure-therapy-and-debridement-with-primer-surgical-closure-for-fournier-s-gangrene-treatment-10-years-experience-of-a-single-centre
#13
Mustafa Ozan Horsanali, Utku Eser, Burcu O Horsanali, Omer Altas, Huseyin Eren
OBJECTIVE: Fournier's gangrene is a type of necrotizing soft tissue infection of the perineal, genital and perianal region that has a rapidly progressive and potentially fatal course. In the present study, our goal was to compare the patients submitted to surgical debridement for Fournier Gangrene with Vacuum-asisted Closure (VAC) and without VAC therapy after debridement. MATERIALS AND METHODS: We retrospectively analyzed 313 patients underwent surgical debridement for FG in our hospital...
August 8, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28790237/-prophylactic-effectiveness-of-vacuum-assisted-closure-for-high-risk-patients-undergoing-cardiovascular-surgery-through-median-sternotomy
#14
Ippei Takazawa, Yoshio Misawa, Satoshi Uesugi, Akira Sugaya, Hirohiko Akutsu, Souki Kurumisawa, Hirotaka Satoh, Arata Muraoka, Kei Aizawa, Shinichi Ohki, Koji Kawahito
Vacuum-assisted closure(VAC) therapy is mainly used for tissue defects. VAC therapy can remove exudate that could impair the healing process. We applied VAC therapy in patients considered at high risk of surgical site infection who underwent cardiovascular surgery via standard median sternotomy. Risk factors included advanced heart failure, obesity, diabetes mellitus, steroid administration, immunosuppressant administration, and chronic renal failure, etc. VAC therapy was used in 134 patients. Only 3 of these patients (2...
August 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28765003/socioeconomic-risk-factors-for-cholera-in-different-transmission-settings-an-analysis-of-the-data-of-a-cluster-randomized-trial-in-bangladesh
#15
Amit Saha, Andrew Hayen, Mohammad Ali, Alexander Rosewell, John D Clemens, C Raina MacIntyre, Firdausi Qadri
BACKGROUND: Cholera remains a threat globally, and socioeconomic factors play an important role in transmission of the disease. We assessed socioeconomic risk factors for cholera in vaccinated and non-vaccinated communities to understand whether the socioeconomic risk factors differ by transmission patterns for cholera. METHODS: We used data from a cluster randomized control trial conducted in Dhaka, Bangladesh. There were 90 geographic clusters; 30 in each of the three arms of the study: vaccine (VAC), vaccine plus behavioural change (VBC), and non-intervention...
July 29, 2017: Vaccine
https://www.readbyqxmd.com/read/28739464/prophylactic-groin-wound-vacuum-assisted-therapy-in-vascular-surgery-patients-at-enhanced-risk-for-postoperative-wound-infection
#16
Luke O Pesonen, Brian G Halloran, Abdulhameed Aziz
OBJECTIVE: Vascular groin wounds have higher than expected surgical site infection (SSI) rates and some patients are at enhanced risk. The Wiseman et al. paper suggests an objective scoring system that identifies patients at enhanced risk of postdischarge SSI. We hypothesize that prophylactic groin wound vacuum-assisted closure (VAC) therapy in enhanced risk patients will decrease SSI and readmission and the Wiseman model provides potential evidence that enhanced risk patients can be objectively identified...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28734659/comparative-effectiveness-study-between-negative-pressure-wound-therapy-and-conventional-wound-dressing-on-perforator-flap-at-the-chinese-tertiary-referral-teaching-hospital
#17
Regis Ernest Mendame Ehya, Yong Zhao, Xun Zheng, Wanrong Yi, Guy-Armel Bounda, Zonghuan Li, Weidong Xiao, Aixi Yu
BACKGROUND: Perforator flap techniques with conventional wound dressing have being extensively used in the management of soft-tissue defects. However; the flap's survival rate is not always guaranteed and the wound healing time always long. The aim of this study was to investigate the clinical effectiveness use of a freshly transplanted perforator flap in conjunction with Vacuum-assisted closure (VAC) for better clinical outcomes. METHODS: A prospective, randomized, effectiveness study comparing the clinical outcomes of VAC versus traditional wrap and bandages for the treatment of open wounds that required hospital admission and operative debridement using perforator flaps, was carried out from March 1, 2014 to March 31, 2016 at Wuhan University Zhongnan Hospital...
July 12, 2017: Journal of Tissue Viability
https://www.readbyqxmd.com/read/28724368/utilizing-patient-data-from-the-veterans-administration-electronic-health-record-to-support-web-based-clinical-decision-support-informatics-challenges-and-issues-from-three-clinical-domains
#18
Nallakkandi Rajeevan, Kristina M Niehoff, Peter Charpentier, Forrest L Levin, Amy Justice, Cynthia A Brandt, Terri R Fried, Perry L Miller
BACKGROUND: The US Veterans Administration (VA) has developed a robust and mature computational infrastructure in support of its electronic health record (EHR). Web technology offers a powerful set of tools for structuring clinical decision support (CDS) around clinical care. This paper describes informatics challenges and design issues that were confronted in the process of building three Web-based CDS systems in the context of the VA EHR. METHODS: Over the course of several years, we implemented three Web-based CDS systems that extract patient data from the VA EHR environment to provide patient-specific CDS...
July 19, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28720671/the-impact-of-ventilator-associated-events-in-critically-ill-subjects-with-prolonged-mechanical-ventilation
#19
Hidetsugu Kobayashi, Shigehiko Uchino, Masanori Takinami, Shoichi Uezono
BACKGROUND: The Centers for Disease Control and Prevention recently released a surveillance definition for respiratory complications in ventilated patients, ventilator-associated events (VAE), to replace ventilator-associated pneumonia (VAP). VAE consists of ventilator-associated conditions (VAC), infection-related ventilator-associated complications (IVAC), and possible VAP. A duration of mechanical ventilation of at least 4 d is required to diagnose VAE. However, the observed duration of mechanical ventilation was < 4 d in many previous studies...
July 18, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28717912/management-of-the-open-abdomen-after-liver-transplantation
#20
Christian Hobeika, Marc-Antoine Allard, Petru-Octav Bucur, Salima Naili, Antonio Sa Cunha, Daniel Cherqui, Denis Castaing, René Adam, Eric Vibert
INTRODUCTION: The optimal management of the open abdomen (OA) after liver transplantation (LT) is unclear. The negative pressure wound therapy (NPWT) has been shown to be safe and can increase the chance for early fascial closure in trauma or septic patients. However, little data are available on the specific setting of LT. We aimed to report our experience of OA after LT, marked by the recent use of NPWT. METHODS: All patients with postponed wall closure after LT, from 2002 to 2014, in a single institution were included and retrospectively analyzed...
July 17, 2017: World Journal of Surgery
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