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https://www.readbyqxmd.com/read/28442440/impact-of-dose-and-surface-features-on-plasmatic-and-liver-concentrations-of-biodegradable-polymeric-nanocapsules
#1
Líliam Teixeira Oliveira, Mônica Auxiliadora de Paula, Bruno Mendes Roatt, Giani Martins Garcia, Luan Silvestro Bianchini Silva, Alexandre Barbosa Reis, Carina Silva de Paula, José Mário Carneiro Vilela, Margareth Spangler Andrade, Gwenaelle Pound-Lana, Vanessa Carla Furtado Mosqueira
The effect of polymeric nanocapsule dose on plasmatic and liver concentrations 20min after intravenous administration in mice was evaluated. Nanocapsules were prepared with different polymers, namely, poly(D,L-lactide) (PLA), polyethylene glycol-block-poly(D,L-lactide) (PLA-PEG), and PLA with chitosan (PLA-Cs) and compared with a nanoemulsion. These formulations were labelled with a phthalocyanine dye for fluorescent detection. The nanostructures had narrow size distributions upon separation by asymmetric flow field flow fractionation with static and dynamic light scattering detection, with average hydrodynamic diameters in the 130-300nm range, negative zeta potentials, except PLA-Cs nanocapsules, which had a positive zeta potential...
April 22, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28441265/novel-risk-assessment-tool-for-immunoglobulin-resistance-in-kawasaki-disease-application-using-a-random-forest-classifier
#2
Masato Takeuchi, Ryo Inuzuka, Taiyu Hayashi, Takahiro Shindo, Yoichiro Hirata, Nobutaka Shimizu, Jun Inatomi, Yoshiki Yokoyama, Yoshiyuki Namai, Yoichiro Oda, Masaru Takamizawa, Jiro Kagawa, Yutaka Harita, Akira Oka
BACKGROUND: Resistance to intravenous immunoglobulin (IVIG) therapy is a risk factor for coronary lesions in patients with Kawasaki disease (KD). Risk-adjusted initial therapy may improve coronary outcome in KD, but identification of high risk patients remains a challenge. This study aimed to develop a new risk assessment tool for IVIG-resistance using advanced statistical techniques. METHODS: Data were retrospectively collected from KD patients receiving IVIG therapy, including demographic characteristics, signs and symptoms of KD, and laboratory results...
April 24, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28439647/prognostic-scoring-system-for-patients-who-present-with-a-gastric-outlet-obstruction-caused-by-advanced-pancreatic-adenocarcinoma
#3
Teiichi Sugiura, Yukiyasu Okamura, Takaaki Ito, Yusuke Yamamoto, Ryo Ashida, Yukio Yoshida, Masaki Tanaka, Katsuhiko Uesaka
BACKGROUND: Gastroenterostomy and stent placement are the most common palliative procedures for patients with a gastric outlet obstruction caused by advanced pancreatic adenocarcinoma. Gastroenterostomy is regarded as the optimum treatment for patients in whom a longer survival is expected, while stent placement is preferred for patients whose survival is likely to be relatively short. However, prognosis of such patients has not been fully evaluated. METHODS: This study included patients undergoing gastroenterostomy or duodenal stent placement for gastric outlet obstruction caused by advanced pancreatic adenocarcinoma between 2002 and 2015...
April 24, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28435674/the-three-rs-recruitment-retention-and-residence-of-leukocytes-in-the-liver
#4
REVIEW
Hayley A McNamara, Ian A Cockburn
The composition of leukocytes in the liver is highly distinct from that of the blood and lymphoid organs. In particular, the liver is highly enriched in non-conventional T cells such as natural killer T (NKT) cells, γδ T cells and mucosal-associated invariant T cells. In addition, there are significant populations of tissue-resident NK cells (or innate lymphoid cells (ILC1)) and memory CD8(+) T cells. These cells are joined in conditions of inflammation by neutrophils, monocytes and macrophages. In recent years a multitude of studies have generated insights into how these cells arrest, move and remain resident in the liver...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28433992/the-aachen-minipig-phenotype-genotype-hematological-and-biochemical-characterization-and-comparison-to-the-g%C3%A3-ttingen-minipig
#5
Kerstin Pawlowsky, Lisa Ernst, Julia Steitz, Thaddäus Stopinski, Babette Kögel, Anna Henger, Reinhart Kluge, René Tolba
BACKGROUND: The pig is one of the most frequently used large animal models for biomedical research, especially in the field of translational research and surgical models. While standard livestock breeds are used in short-term and acute studies, minipig breeds are the preferred breeds in long-term and chronic studies due to their limited growth and body weight. OBJECTIVE: In consideration of the 3R principle (refinement, reduction, replacement) and the increasing demand, the aim of this study was to generate a new, robust, non-specific-pathogen-free minipig breed, the Aachen minipig...
April 22, 2017: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/28430754/biomarkers-for-early-acute-kidney-injury-diagnosis-and-severity-prediction-a-pilot-multicenter-canadian-study-of-children-admitted-to-the-icu
#6
Jennifer Palermo, Allison B Dart, Alanna De Mello, Prasad Devarajan, Ronald Gottesman, Gonzalo Garcia Guerra, Greg Hansen, Ari R Joffe, Cherry Mammen, Nick Majesic, Catherine Morgan, Peter Skippen, Michael Pizzi, Ana Palijan, Michael Zappitelli
OBJECTIVE: Acute kidney injury occurs early in PICU admission and increases risks for poor outcomes. We evaluated the feasibility of a multicenter acute kidney injury biomarker urine collection protocol and measured diagnostic characteristics of urine neutrophil gelatinase-associated lipocalin, interleukin-18, and liver fatty acid binding protein to predict acute kidney injury and prolonged acute kidney injury. DESIGN: Prospective observational pilot cohort study...
April 20, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28428718/clinical-implication-of-fdg-uptake-of-bone-marrow-on-pet-ct-in-gastric-cancer-patients-with-surgical-resection
#7
Jeong Won Lee, Moon-Soo Lee, Il Kwon Chung, Myoung Won Son, Young Sin Cho, Sang Mi Lee
AIM: To determine the relationship between F-18 fluorodeoxyglucose (FDG) uptake of bone marrow (BM) on positron emission tomography/computed tomography (PET/CT) and clinical factors and to assess the prognostic value of FDG uptake of BM in gastric carcinoma. METHODS: We retrospectively enrolled 309 gastric cancer patients who underwent staging FDG PET/CT and curative surgical resection. FDG uptake of primary tumor was visually classified as positive or negative FDG uptake...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28427999/serpinb1-ameliorates-acute-lung-injury-in-liver-transplantation-through-erk1-2-mediated-stat3-dependent-ho-1-induction
#8
Weifeng Yao, Haobo Li, Gangjian Luo, Xiang Li, Chaojin Chen, Dongdong Yuan, Xinjin Chi, Zhengyuan Xia, Ziqing Hei
BACKGROUND: Postoperative acute lung injury(ALI) is a severe complication after liver transplantation, which severely affects postoperative patients' survival. The underlying mechanism is largely unknown and effective treatment limited. We explored the role of serpin protease inhibitor B1(SERPINB1), a potent inhibitor of neutrophil serine proteases, in ALI in liver transplantation and its interplay with signal transducer and activator of transcription 3(STAT3) and heme oxygenase-1(HO-1)...
April 17, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28427133/-effects-of-application-of-vancomycin-in-the-early-stage-of-patients-with-extremely-severe-burn
#9
Z Zhu, G W Cao, J J Bao, Z H Hu, Z Shen, H Tao, B Cao, F Xu
Objective: To evaluate the effects of application of vancomycin in the early stage of patients with extremely severe burn, in order to provide reference to drug for anti-infection treatment in the early stage of patients with extremely severe burn. Methods: Data of 15 patients of Kunshan explosion on August 2nd, 2014, admitted to the Department of Intensive Care in our hospital were retrospectively analyzed. The clinical efficacy of continuously intravenous dripping of vancomycin (combined with imipenem) in the early stage of burns (before and on post burn day 14) was analyzed...
April 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28426800/neutrophil-lymphocyte-ratio-predicts-short-term-mortality-in-patients-with-hepatitis-b-virus-related-acute-on-chronic-liver-failure-treated-with-an-artificial-liver-support-system
#10
Zeng Fan, Chen EnQiang, Du Ling Yao, Yan LiBo, Li Hong, Bai Lang, Feng Ping, Tang Hong
AIM: Hepatitis B virus-related acute-on-chronic liver failure has high short-term mortality. Artificial liver support systems (ALSS) may improve outcome and avoid liver transplantation, but predicting short-term prognosis in such patients is difficult. This study aimed to determine whether the neutrophil-lymphocyte ratio (NLR), an inflammation marker, predicted mortality in patients treated with ALSS. METHODS: A total of 560 patients with hepatitis B virus-related acute-on-chronic liver failure were enrolled, 338 were treated with ALSS and the others treated with standard of care(SOC)...
2017: PloS One
https://www.readbyqxmd.com/read/28418287/synergistic-effect-of-ischemic-preconditioning-and-antithrombin-in-ischemia-reperfusion-injury
#11
Georgios Vrakas, Konstantinos Tsalis, Georgios Nikolaos Roidos, Emmanuel Christoforidis, Kokkona Kouzi-Koliakou, Charalampos Lazaridis, Anil Vaidya
OBJECTIVES: Our study aimed to determine whether antithrombin plays a synergistic role in accentuating the effects of intestinal ischemic preconditioning. MATERIALS AND METHODS: Fifty rats were randomly allocated to 5 groups (10 rats/group) as follows: sham treatment (group 1); ischemia-reperfusion (group 2); ischemic preconditioning followed by ischemia-reperfusion (group 3); antithrombin + ischemia-reperfusion, similar to group 2 but including antithrombin administration (group 4); and antithrombin + ischemic preconditioning, similar to group 3 but including antithrombin administration (group 5)...
April 18, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28415888/bioengineered-gold-nanoparticles-targeted-to-mesenchymal-cells-from-patients-with-bronchiolitis-obliterans-syndrome-does-not-rise-the-inflammatory-response-and-can-be-safely-inhaled-by-rodents
#12
Emanuela Cova, Simona Inghilleri, Laura Pandolfi, Monica Morosini, Sara Magni, Miriam Colombo, Davide Piloni, Chiara Finetti, Gabriele Ceccarelli, Laura Benedetti, Maria Gabriella Cusella, Manuela Agozzino, Fabio Corsi, Raffaele Allevi, Simona Mrakic-Sposta, Sarah Moretti, Simona De Gregori, Davide Prosperi, Federica Meloni
The use of gold nanoparticles as drug delivery system represents a promising issue for diseases without effective pharmacological treatment due to insufficient local drug accumulation and excessive systemic toxicity. Bronchiolitis obliterans syndrome (BOS) represents about 70% of cases of chronic lung allograft dysfunction, the main challenge to long term lung transplantation. It is believed that due to repeated insults to epithelial bronchiolar cells local inflammatory response creates a milieu that favours epithelial mesenchymal transition and activation of local mesenchymal cells leading to airway fibro-obliteration...
April 18, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28415724/pharmacological-inhibition-of-src-kinase-protects-against-acute-kidney-injury-in-a-murine-model-of-renal-ischemia-reperfusion
#13
Chongxiang Xiong, Xiujuan Zang, Xiaoxu Zhou, Lirong Liu, Monica V Masucci, Jinhua Tang, Xuezhu Li, Na Liu, George Bayliss, Ting C Zhao, Shougang Zhuang
Activation of Src kinase has been implicated in the pathogenesis of acute brain, liver, and lung injury. However, the role of Src in acute kidney injury (AKI) remains unestablished. To address this, we evaluated the effects of Src inhibition on renal dysfunction and pathological changes in a murine model of AKI induced by ischemia/reperfusion (I/R). I/R injury to the kidney resulted in increased Src phosphorylation at tyrosine 416 (activation). Administration of PP1, a highly selective Src inhibitor, blocked Src phosphorylation, improved renal function and ameliorated renal pathological damage...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414974/bilirubin-nanoparticle-preconditioning-protects-against-hepatic-ischemia-reperfusion-injury
#14
Jin Yong Kim, Dong Yun Lee, Sukmo Kang, Wenjun Miao, Hyungjun Kim, Yonghyun Lee, Sangyong Jon
Hepatic ischemia-reperfusion injury (IRI) remains a major concern in liver transplantation and resection, despite continuing efforts to prevent it. Accumulating evidence suggests that bilirubin possesses antioxidant, anti-inflammatory and anti-apoptotic properties. However, despite obvious potential health benefits of bilirubin, its clinical applications are limited by its poor solubility. We recently developed bilirubin nanoparticles (BRNPs) consisting of polyethylene glycol (PEG)-conjugated bilirubin. Here, we sought to investigate whether BRNPs protect against IRI in the liver by preventing oxidative stress...
April 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28414664/gonococcal-endocarditis-the-gift-that-stops-giving-an-uncommon-presentation-of-a-common-disease
#15
G Olayemi, M Oferczak, A Elagizi, I El-Abbassi, M Eschete, J Crowe
INTRODUCTION: Gonorrhea is the 2nd most common sexually transmitted disease in the US with 800,000 cases of gonorrhea each year. Disseminated gonorrhea infection occurs in 0.5 percent - 3 percent of these patients and is more frequent in woman younger than 40 years of age. CASE: A 36 year old woman with a history of polysubstance abuse presented with 10 day history of feeling generally unwell. At presentation, vitals were remarkable for tachycardia and hypotension...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414120/the-predictive-value-of-integrated-inflammation-scores-on-survival-of-patients-with-resected-hepatocellular-carcinoma
#16
Shuo Pang, Ziquan Zhou, Xingchen Yu, Shaozhong Wei, Qiongrong Chen, Shaofa Nie, Xinjun Liang, Li Liu
BACKGROUND: Evidence supports the predictive potential of inflammatory marker-derived scores (inflammation scores) and hepatitis B virus (HBV) infection on prognosis of patients with hepatocellular carcinoma (HCC). However, no study has longitudinally assessed the predictive values of inflammation scores combined with hepatitis B virus status on survival of these patients. Therefore, a study was designed to evaluate the prognostic capacity of preoperative, dynamic changes in integrated scores, through a combination of general inflammation scores and HBV infection status, on HCC patients undergoing tumor resection...
April 13, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28411363/animal-models-of-alcoholic-liver-disease-pathogenesis-and-clinical-relevance
#17
Bin Gao, Ming-Jiang Xu, Adeline Bertola, Hua Wang, Zhou Zhou, Suthat Liangpunsakul
Alcoholic liver disease (ALD), a leading cause of chronic liver injury worldwide, comprises a range of disorders including simple steatosis, steatohepatitis, cirrhosis, and hepatocellular carcinoma. Over the last five decades, many animal models that have been useful for the study of ALD pathogenesis have been developed. Recently, a chronic-plus-binge ethanol feeding model was reported. This model induces significant steatosis, hepatic neutrophil infiltration, and liver injury. A clinically relevant model of high-fat diet feeding plus binge ethanol was also developed, which highlights the risk of excessive binge drinking in obese/overweight individuals...
April 14, 2017: Gene Expression
https://www.readbyqxmd.com/read/28403148/human-neutrophil-peptide-1-promotes-alcohol-induced-hepatic-fibrosis-and-hepatocyte-apoptosis
#18
Rie Ibusuki, Hirofumi Uto, Kohei Oda, Akihiko Ohshige, Kazuaki Tabu, Seiichi Mawatari, Kotaro Kumagai, Shuji Kanmura, Tsutomu Tamai, Akihiro Moriuchi, Hirohito Tsubouchi, Akio Ido
BACKGROUND AND AIMS: Neutrophil infiltration of the liver is a typical feature of alcoholic liver injury. Human neutrophil peptide (HNP)-1 is an antimicrobial peptide secreted by neutrophils. The aim of this study was to determine if HNP-1 affects ethanol-induced liver injury and to examine the mechanism of liver injury induced by HNP-1. METHODS: Transgenic (TG) mice expressing HNP-1 under the control of a β-actin-based promoter were established. Ethanol was orally administered to HNP-1 TG or wild-type C57BL/6N (WT) mice...
2017: PloS One
https://www.readbyqxmd.com/read/28396849/delay-in-human-neutrophil-constitutive-apoptosis-after-infection-with-klebsiella-pneumoniae-serotype-k1
#19
Chen-Hsiang Lee, Seng-Kee Chuah, Wei-Chen Tai, Chia-Chi Chang, Fang-Ju Chen
Klebsiella pneumoniae serotype K1 is a major cause of invasive syndrome defined by liver abscess with metastatic infections at other body sites. This culprit is known to be resistant to neutrophil phagocytosis and bactericidal activity. We hypothesized that K. pneumoniae serotype K1 might regulate neutrophil apoptosis and enhance the survival of the infected neutrophils that might serve as a vector for dissemination of the bacteria. Two serotypes of K. pneumoniae, KP-M1 isolated from a patient with liver abscess and DT-X (an acapsular mutant strain of KP-M1), were used to infect human neutrophils...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28395956/benefit-of-an-implanted-solid-barrier-for-the-feasibility-of-a-sequence-of-three-different-hepato-biliary-operations-in-a-small-animal-model
#20
B Richter, C Sänger, F Mussbach, H Scheuerlein, U Settmacher, U Dahmen
BACKGROUND: Current liver surgery includes complex multi-stage procedures such as portal vein ligation (PVL) followed by extended liver resection, especially in patients with Klatskin tumours. The risk for severe adhesions increases with every procedure. Finally, this complex sequence could fail because of malignant adhesions. Therefore, we proved the hypothesis of reducing malignant adhesions and increasing feasibility of a sequence with three hepato-biliary operations by implantation of a solid barrier...
April 8, 2017: Journal of Visceral Surgery
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