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Aprotinin

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https://www.readbyqxmd.com/read/29122431/nonsurgical-strategies-to-reduce-mortality-in-patients-undergoing-cardiac-surgery-an-updated-consensus-process
#1
Giovanni Landoni, Vladimir Lomivorotov, Simona Silvietti, Caetano Nigro Neto, Antonio Pisano, Gabriele Alvaro, Ludmilla Abrahao Hajjar, Gianluca Paternoster, Hynek Riha, Fabrizio Monaco, Andrea Szekely, Rosalba Lembo, Nesrin A Aslan, Giovanni Affronti, Valery Likhvantsev, Cristiano Amarelli, Evgeny Fominskiy, Martina Baiardo Redaelli, Alessandro Putzu, Massimo Baiocchi, Jun Ma, Giuseppe Bono, Valentina Camarda, Remo Daniel Covello, Nora Di Tomasso, Miriam Labonia, Carlo Leggieri, Rosetta Lobreglio, Giacomo Monti, Paolo Mura, Anna Mara Scandroglio, Daniela Pasero, Stefano Turi, Agostino Roasio, Carmine D Votta, Emanuela Saporito, Claudio Riefolo, Chiara Sartini, Luca Brazzi, Rinaldo Bellomo, Alberto Zangrillo
OBJECTIVE: A careful choice of perioperative care strategies is pivotal to improve survival in cardiac surgery. However, there is no general agreement or particular attention to which nonsurgical interventions can reduce mortality in this setting. The authors sought to address this issue with a consensus-based approach. DESIGN: A systematic review of the literature followed by a consensus-based voting process. SETTING: A web-based international consensus conference...
June 7, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29107157/efficacy-reliability-and-safety-of-completely-autologous-fibrin-glue-in-neurosurgical-procedures-single-center-retrospective-large-number-case-study
#2
Noriyuki Nakayama, Hirohito Yano, Yusuke Egashira, Yukiko Enomoto, Naoyuki Ohe, Nobuhiro Kanemura, Junichi Kitagawa, Toru Iwama
OBJECTIVE: Commercially available fibrin glue (Com-FG) used commonly worldwide is produced with pooled human plasma from multiple donors and is added bovine aprotinin, however, which involves the risk of infection, allogenic immunity, and allergic reactions. We evaluate the efficacy, reliability, and safety of completely autologous fibrin glue (CAFG). METHODS: From August 2014 to February 2016, prospective data were collected and analyzed from 153 patients. CAFG was prepared with the CRYOSEAL(®) System using autologous blood and applied during neurosurgical procedures...
October 26, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29079148/trypsin-of-litopenaeus-vannamei-is-required-for-the-generation-of-hemocyanin-derived-peptides
#3
Changping Li, Fan Wang, Jude Juventus Aweya, Defu Yao, Zhou Zheng, He Huang, Shengkang Li, Yueling Zhang
Hemocyanin is a copper containing respiratory glycoprotein in arthropods and mollusks, which also have multiple functions in vivo. Recent studies have shown that hemocyanin could generate several peptides, which play important roles in shrimp innate immunity. However, how these hemocyanin-derived peptides are generated is still largely unknown. In this study, we report for the first time that the generation of hemocyanin-derived peptides was closely correlated with trypsin expression in shrimp hepatopancreas following infection with different bacteria...
October 24, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29078893/autodigestion-by-migrated-trypsin-is-a-major-factor-in-small-intestinal-ischemia-reperfusion-injury
#4
Rabea Verhaegh, Frank Petrat, Lisa Brencher, Michael Kirsch, Herbert de Groot
BACKGROUND: The pathophysiological role of pancreatic digestive hydrolases in intestinal ischemia-reperfusion (I/R) injury is still not clear. Here, we studied whether ischemia-induced injury to the small intestine can be explained by the autodigestion hypothesis. MATERIALS AND METHODS: Mesenteric I/R was induced in rats by superior mesenteric artery occlusion (90 min) and reopening (120 min). Thirty minutes before superior mesenteric artery occlusion, aprotinin (14...
November 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29072635/a-systematic-review-of-neuroprotective-strategies-during-hypovolemia-and-hemorrhagic-shock
#5
REVIEW
Marius Nistor, Wilhelm Behringer, Martin Schmidt, René Schiffner
Severe trauma constitutes a major cause of death and disability, especially in younger patients. The cerebral autoregulatory capacity only protects the brain to a certain extent in states of hypovolemia; thereafter, neurological deficits and apoptosis occurs. We therefore set out to investigate neuroprotective strategies during haemorrhagic shock. This review was performed in accordance to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Before the start of the search, a review protocol was entered into the PROSPERO database...
October 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29063327/design-of-nanosomal-form-of-aprotinin
#6
O A Kulikov, N A Pyataev, A V Zaborovskii, I V Maev, V P Ageev, E E Marochkina, I S Dolgacheva, I S Avdyushkina, A V Kokorev, K G Gurevich, L A Tatarina, D V Yunina
Liposomes containing aprotinin were produced by the phase inversion technique and purified by gel filtration. Aprotinin inclusion was assessed fluorescence labeling of the protein. The size of obtained liposomes was 212±35 nm and aprotinin concentration in the liposomal suspension was 3000 KIU/ml. The efficiency of aprotinin inclusion into liposomes was 31.9%.
October 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29042083/aprotinin-prevents-proteolytic-epithelial-sodium-channel-enac-activation-and-volume-retention-in-nephrotic-syndrome
#7
Bernhard N Bohnert, Martina Menacher, Andrea Janessa, Matthias Wörn, Anja Schork, Sophie Daiminger, Hubert Kalbacher, Hans-Ulrich Häring, Christoph Daniel, Kerstin Amann, Florian Sure, Marko Bertog, Silke Haerteis, Christoph Korbmacher, Ferruh Artunc
Volume retention in nephrotic syndrome has been linked to activation of the epithelial sodium channel (ENaC) by proteolysis of its γ-subunit following urinary excretion of serine proteases such as plasmin. Here we tested whether pharmacological inhibition of urinary serine protease activity might protect from ENaC activation and volume retention in nephrotic syndrome. Urine from both nephrotic mice (induced by doxorubicin injection) and nephrotic patients exhibited high aprotinin-sensitive serine protease activity...
October 14, 2017: Kidney International
https://www.readbyqxmd.com/read/29030007/pretreatment-of-a-matrix-metalloproteases-inhibitor-and-aprotinin-attenuated-the-development-of-acute-pancreatitis-induced-lung-injury-in-rat-model
#8
Kuang-En Chu, Yao Fong, David Wang, Chao Fuh Chen, Diana Yu-Wung Yeh
OBJECTIVE: Acute lung injury (ALI) is one of the most common extra-pancreatic complications of acute pancreatitis. In this study, we examined the protective effect of protease inhibitor aprotinin and a matrix metalloproteinase inhibitor (MMPi) on pulmonary inflammation in rats with severe pancreatitis-associated ALI. METHOD: A rat model of acute pancreatitis (AP) was established by injecting sodium glycodeoxycholate (GDOC) into the pancreatic duct. Pharmacological interventions included pretreatment with a protease inhibitor aprotinin (10mg/kg) and a matrix metalloproteinase inhibitor (MMPi, 100g/kg)...
October 6, 2017: Immunobiology
https://www.readbyqxmd.com/read/29023404/novel-synthesis-of-core-shell-silica-nanoparticles-for-the-capture-of-low-molecular-weight-proteins-and-peptides
#9
Sergio G Hernandez-Leon, Jose Andre-I Sarabia-Sainz, Gabriela Ramos-Clamont Montfort, Ana M Guzman-Partida, Maria Del Refugio Robles-Burgueño, Luz Vazquez-Moreno
Silica nanoparticles were functionalized with immobilized molecular bait, Cibacron Blue, and a porous polymeric bis-acrylamide shell. These nanoparticles represent a new alternative to capture low molecular weight (LMW) proteins/peptides, that might be potential biomarkers. Functionalized core-shell silica nanoparticles (FCSNP) presented a size distribution of 243.9 ± 11.6 nm and an estimated surface charge of -38.1 ± 0.9 mV. The successful attachment of compounds at every stage of synthesis was evidenced by ATR-FTIR...
October 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28987408/perfluorohexadecanoic-acid-increases-paracellular-permeability-in-endothelial-cells-through-the-activation-of-plasma-kallikrein-kinin-system
#10
Qian S Liu, Fang Hao, Zhendong Sun, Yanmin Long, Qunfang Zhou, Guibin Jiang
Per- and polyfluoroalkyl substances (PFASs) are ubiquitous and high persistent in human blood, thus potentially inducing a myriad of deleterious consequences. Plasma kallikrein-kinin system (KKS), which physiologically regulates vascular permeability, is vulnerable to exogenous stimulators, like PFASs with long-chain alkyl backbone substituted by electronegative fluorine. The study on the interactions of PFASs with the KKS and the subsequent effects on vascular permeability would be helpful to illustrate how the chemicals penetrate the biological vascular barriers to reach different tissues...
October 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/28960978/ethyl-gallate-displays-elicitor-activities-in-tobacco-plants
#11
Pascale Goupil, Razik Benouaret, Claire Richard
Alkyl gallates showed elicitor activities on tobacco in both whole plants and cell suspensions. Methyl gallate (MG), ethyl gallate (EG), and propyl gallate (PG) infiltration into tobacco leaves induced hypersensitive reaction-like lesions and topical production of autofluorescent compounds revealed under UV light. When sprayed on tobacco plants at 5 mM, EG promoted upregulation of defense-related genes such as the antimicrobial PR1, β-1,3-glucanase PR2, Chitinase PR3, and osmotin PR5 target genes. Tobacco BY-2 cells challenged with EG underwent cell death in 48 h, which was significantly reduced in the presence of the protease inhibitor aprotinin...
October 6, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28857663/extraction-purification-and-biochemical-characterization-of-serine-protease-from-leaves-of-abrus-precatorius
#12
Ngangoum Eric Serge, Mezajoug Kenfack Laurette Blandine, Sanjit Kumar, Tchiégang Clergé, Mookambeswaran Vijayalakshmi
A protease from fresh leaves of Abrus precatorius was purified using two classical chromatography techniques: ion exchange (DEAE-Sepharose) and Gel filtration (Sephadex G-75). The Purified protease showed a molecular weight of ∼ 28 kDa on sodium dodecyl gel electrophoresis (SDS-PAGE).The optimum pH and temperature for the purified protease was 8 and 40°C respectively. The purified protease was stable throughout a wide temperature range from 10°C to 80°C and pH from 2 to 12. Protease activity was inhibited in presence of Co(2+), Ni(2+), Hg(2+) and Zn(2+) while its activity has increased in presence of Ca(2+) and Mg(2+)...
August 31, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28818113/respiratory-syncytial-virus-rsv-entry-is-inhibited-by-serine-protease-inhibitor-aebsf-when-present-during-an-early-stage-of-infection
#13
Winke Van der Gucht, Annelies Leemans, Marjorie De Schryver, Annick Heykers, Guy Caljon, Louis Maes, Paul Cos, Peter L Delputte
BACKGROUND: Host proteases have been shown to play important roles in many viral activities such as entry, uncoating, viral protein production and disease induction. Therefore, these cellular proteases are putative targets for the development of antivirals that inhibit their activity. Host proteases have been described to play essential roles in Ebola, HCV, HIV and influenza, such that specific protease inhibitors are able to reduce infection. RSV utilizes a host protease in its replication cycle but its potential as antiviral target is unknown...
August 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/28798096/activation-of-tissue-plasminogen-activator-by-metastasis-inducing-s100p-protein
#14
Christopher J Clarke, Stephane R Gross, Thamir M Ismail, Philip S Rudland, Morteta Al-Medhtiy, Michael Santangeli, Roger Barraclough
S100P protein in human breast cancer cells is associated with reduced patient survival and, in a model system of metastasis, it confers a metastatic phenotype upon benign mammary tumour cells. S100P protein possesses a C-terminal lysine residue. Using a multiwell in vitro assay, S100P is now shown for the first time to exhibit a strong, C-terminal lysine-dependent activation of tissue plasminogen activator (tPA), but not of urokinase-catalysed plasminogen activation. The presence of 10 μM calcium ions stimulates tPA activation of plasminogen 2-fold in an S100P-dependent manner...
September 12, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28762531/purification-and-characterization-of-trypsin-produced-by-gut-bacteria-from-anticarsia-gemmatalis
#15
Franciny Martins Pilon, Camila da Rocha Silva, Liliane Evangelista Visôtto, Rafael de Almeida Barros, Neilier Rodrigues da Silva Júnior, Wellington Garcia Campos, Maria Goreti de Almeida Oliveira
Purification of active trypsin in the digestive process of insects is essential for the development of potent protease inhibitors (PIs) as an emerging pest control technology and research into insect adaptations to dietary PIs. An important aspect is the presence of proteolytic microorganisms, which contribute to host nutrition. Here, we purified trypsins produced by bacteria Bacillus cereus, Enterococcus mundtii, Enterococcus gallinarum, and Staphylococcus xylosus isolated from the midgut of Anticarsia gemmatalis...
October 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28754559/enzymatic-cleavage-promotes-disassembly-of-gii-3-norovirus-virus-like-particles-and-its-binding-to-salivary-histo-blood-group-antigens
#16
Yuqi Huo, Wenhui Wang, Lijun Zheng, Xuhui Chen, Shuo Shen, Mingchen Wang
In this study, we found that addition of fecal extract significantly promoted the binding of GII.3 NoV VLPs to salivary HBGAs. SDS-PAGE analysis indicated that major capsid proteins (VP1) were cleaved into two major bands with molecular weights of 26 and 31kD, respectively. Pretreatment of fecal extract by boiling or addition of protease inhibitor cocktail or type specific protease inhibitor (leupeptin and aprotinin) during incubation all decreased VP1 cleavage and its binding to salivary HBGAs. Trypsin digestion led to cleavage of VP1 and promoted its binding to HBGAs, suggesting that the active enzyme(s) might be trypsin or trypsin-like enzymes...
July 25, 2017: Virus Research
https://www.readbyqxmd.com/read/28694438/stress-induces-more-serious-barrier-dysfunction-in-follicle-associated-epithelium-than-villus-epithelium-involving-mast-cells-and-protease-activated-receptor-2
#17
Lei Zhang, Jun Song, Tao Bai, Wei Qian, Xiao-Hua Hou
Psychological stress has been associated with intestinal epithelial hyperpermeability, the basic process in various functional and organic bowel diseases. In the present study, we aimed to clarify the differences and underlining mechanisms in stress-induced barrier disruption in functionally and structurally distinct epitheliums, including the villus epithelium (VE) and follicle-associated epithelium (FAE), a specialized epithelium overlaid the domes of Peyer's lymphoid follicles. Employing an Ussing Chamber system, the epithelial permeability was assessed in rats following water avoidance stress (WAS) in vivo and in mucosa tissues exposed to corticotropin-releasing factor (CRF) ex vivo...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28691229/desmopressin-use-for-minimising-perioperative-blood-transfusion
#18
REVIEW
Michael J Desborough, Kathryn Oakland, Charlotte Brierley, Sean Bennett, Carolyn Doree, Marialena Trivella, Sally Hopewell, Simon J Stanworth, Lise J Estcourt
BACKGROUND: Blood transfusion is administered during many types of surgery, but its efficacy and safety are increasingly questioned. Evaluation of the efficacy of agents, such as desmopressin (DDAVP; 1-deamino-8-D-arginine-vasopressin), that may reduce perioperative blood loss is needed. OBJECTIVES: To examine the evidence for the efficacy of DDAVP in reducing perioperative blood loss and the need for red cell transfusion in people who do not have inherited bleeding disorders...
July 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28678070/tranexamic-acid-does-not-influence-cardioprotection-by-ischemic-preconditioning-and-remote-ischemic-preconditioning
#19
Patrick van Caster, Sandra Eiling, Yvonne Boekholt, Friederike Behmenburg, Marianne Dorsch, André Heinen, Markus W Hollmann, Ragnar Huhn
Prior studies have suggested that the antifibrinolytic drug aprotinin increases the infarct size after ischemia and reperfusion (I/R) and attenuates the effect of ischemic preconditioning (IPC). Aprotinin was replaced by tranexamic acid (TXA) in clinical practice. Here, we investigated whether TXA influences I/R injury and/or cardioprotection initiated by IPC and/or remote ischemic preconditioning (RIPC). Anesthetized male Wistar rats were randomized to 6 groups. Control animals were not further treated. Administration of TXA was combined with and without IPC and RIPC...
July 1, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28648705/an-aprotinin-containing-fibrin-sealant-does-not-reduce-blood-loss-in-total-hip-arthroplasty
#20
Sean M Kearns, Hannah N Kuhar, Daniel D Bohl, Brett R Levine
BACKGROUND: Fibrin sealants are topical agents used to reduce perioperative blood loss; however, their efficacy in total hip arthroplasty (THA) remains uncertain. The purpose of this study was to determine if a fibrin sealant containing aprotinin as an antifibrinolytic agent, TISSEEL (Baxter, Deerfield, IL), reduces postoperative blood loss and transfusion during THA when compared with intravenous (IV) tranexamic acid (TXA) and control groups. METHODS: Three retrospective uniform cohorts of primary THA procedures were identified, from a prospectively maintained database: 1 group who received TISSEEL, 1 group who received 1 g IV TXA, and 1 group who received neither (control)...
November 2017: Journal of Arthroplasty
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