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https://www.readbyqxmd.com/read/29352881/carbon-nanotube-modified-oxidized-regenerated-cellulose-gauzes-for-hemostatic-applications
#1
Feng Cheng, Changyu Liu, Hongbin Li, Xinjing Wei, Tingsheng Yan, Yunfeng Wang, Yunjia Song, Jinmei He, Yudong Huang
Functionalized carbon nanotubes have recently received interest because of their unique properties, especially in the biomedical field. In this research, unmodified multiwalled carbon nanotubes (MWCNTs), and functionalized carbon nanotubes with amino groups (MWCNTs-NH2) and carboxyl groups (MWCNTs-COOH) were grafted to oxidized regenerated cellulose (ORC) gauze to fabricate novel functionalized ORC, and the performance of the functionalized gauze was investigated. The functionalized ORC was characterized by FT-IR, XPS and SEM, which showed the different kinds of CNTs grafted on its surface...
March 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29351395/macrophage-colony-stimulating-factor-increases-hepatic-macrophage-content-liver-growth-and-lipid-accumulation-in-neonatal-rats
#2
Clare Pridans, Kristin A Sauter, Katharine M Irvine, Gemma M Davis, Lucas Lefevre, Anna Raper, Rocio Rojo, Ajit J Nirmal, Philippa Beard, Michael Cheeseman, David A Hume
Signaling via the colony stimulating factor 1 receptor (CSF1R) controls the survival, differentiation and proliferation of macrophages. Mutations in CSF1, or CSF1R in mice and rats have pleiotropic effects on postnatal somatic growth. We tested the possible application of CSF1-Fc as a therapy for low birth weight (LBW) at term, using a model based upon maternal dexamethasone treatment in rats. Neonatal CSF1-Fc treatment did not alter somatic growth, and did not increase the blood monocyte count. Instead, there was a substantial increase in the size of liver in both control and LBW rats, and the treatment greatly exacerbated the lipid droplet accumulation seen in the dexamethasone LBW model...
December 21, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29350764/the-protective-effect-of-antarctic-krill-oil-on-cognitive-function-by-inhibiting-oxidative-stress-in-the-brain-of-senescence-accelerated-prone-mouse-strain-8-samp8-mice
#3
Qian Li, Fengjuan Wu, Min Wen, Teruyoshi Yanagita, Changhu Xue, Tiantian Zhang, Yuming Wang
Alzheimer's disease (AD) is a common neurodegenerative disorder, and oxidative stress plays a vital role in its progression. Antarctic krill oil (AKO) is rich in polyunsaturated fatty acids, which has various biological activities, such as improving insulin sensitivity, alleviating inflammation and ameliorating oxidative stress. In this study, the protective effect of AKO against AD were investigated in senescence-accelerated prone mouse strain 8 (SAMP8) mice. Results showed that treatment with AKO could effectively ameliorate learning and memory deficits and ease the anxiety in SAMP8 mice by Morris water maze, Barnes maze test and open-field test...
January 19, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29348467/efficacy-of-mek-inhibition-in-a-k-ras-driven-cholangiocarcinoma-preclinical-model
#4
Mingjie Dong, Xianqiong Liu, Katja Evert, Kirsten Utpatel, Michele Peters, Shanshan Zhang, Zhong Xu, Li Che, Antonio Cigliano, Silvia Ribback, Frank Dombrowski, Antonio Cossu, John Gordan, Diego F Calvisi, Matthias Evert, Yan Liu, Xin Chen
Intrahepatic cholangiocarcinoma (iCCA) is a deadly malignancy with limited treatment options. Gain-of-function mutations in K-Ras is a very frequent alteration, occurring in ~15 to 25% of human iCCA patients. Here, we established a new iCCA model by expressing activated forms of Notch1 (NICD) and K-Ras (K-RasV12D) in the mouse liver (K-Ras/NICD mice). Furthermore, we investigated the therapeutic potential of MEK inhibitors in vitro and in vivo using human CCA cell lines and K-Ras/NICD mice, respectively. Treatment with U0126, PD901, and Selumetinib MEK inhibitors triggered growth restraint in all CCA cell lines tested, with the most pronounced growth suppressive effects being observed in K-Ras mutant cells...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29345500/effects-of-l-arginine-supplementation-on-leukogram-inflammatory-bowel-infiltrates-and-immunoglobulins-with-5-fu-use-in-rats
#5
Bianca D Balmant, Eloisa O N Araújo, Denise Yabuki, Amanda B Novais, Sandra C Genaro, Cecilia B Laposy, Paulo F I Goiozo, Marcelo G M Chacur, Rogério Giuffrida, Luis S L S Reis
This study evaluated the effects of L-arginine supplementation on blood parameters, kidney and liver function, immunoglobulins and noninflammatory infiltrates in the small intestines of rats subjected to chemotherapy with 5-fluorouracil (5-FU). Thirty-two Wistar rats were randomly distributed into 4 groups (8 rats/group): an untreated control group, and test groups receiving one dose of 5-FU (G5-FU group), one dose of 5-FU and 295 mg L-arginine/day (GArg295 group) or one dose of 5-FU and 458 mg L-arginine/day (GArg458 group)...
January 18, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29345041/serum-amyloid-a-procalcitonin-highly-sensitive-c-reactive-protein-and-tumor-necrosis-factor-alpha-levels-and-acute-inflammatory-response-in-patients-with-hemolysis-elevated-liver-enzymes-low-platelet-count-hellp-and-eclampsia
#6
Kazım Uckan, Hanım Guler Sahin
AIM: The aim of this study was to determine the relationship between serum amyloid A (SAA), procalcitonin (ProC), highly sensitive C reactive protein (hsCRP) and tumor necrosis factor (TNF) alpha activity in patients with pre-eclampsia, eclampsia and hemolysis, elevated liver enzymes, low platelet count (HELLP), and the pathogenesis and severity of the disease. METHOD: Ninety patients at ≥ 32 gestational weeks, according to the last date of menstruation and ultra-sonographic measurements, diagnosed with pre-eclampsia (30 patients), eclampsia (30 patients) or HELLP syndrome (30 patients) were included in the study...
January 18, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29344519/icg-clearance-test-and-99mtc-gsa-spect-ct-fusion-images
#7
REVIEW
Yuji Iimuro
Preoperative estimation of future remnant liver function is critical for major hepatic surgery to avoid postoperative morbidity and mortality. Among several liver function tests, the indocyanine green (ICG) clearance test is still the most popular dynamic method. The usefulness of ICG clearance test parameters, such as ICGR15, KICG, or PDRICG, has been reported by many investigators. The transcutaneous non-invasive pulse dye densitometry system has made the ICG clearance test more convenient and attractive, even in Western countries...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344518/current-modalities-for-the-assessment-of-future-remnant-liver-function
#8
REVIEW
Fadi Rassam, Pim B Olthof, Roelof J Bennink, Thomas M van Gulik
While imaging studies such as computed tomography or magnetic resonance imaging allow the volumetric assessment of the liver segments, only indirect information is provided concerning the quality of the liver parenchyma and its actual functional capacity. Assessment of liver function is therefore crucial in the preoperative workup of patients who require extensive liver resection and in whom portal vein embolization is considered. This review deals with the modalities currently available for the measurement of liver function...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344516/hypertrophy-and-liver-function-in-alpps-correlation-with-morbidity-and-mortality
#9
REVIEW
Danby Kang, Erik Schadde
Background: ALPPS (associating liver partition and portal vein ligation for staged hepatectomy) was introduced with the promise to reduce posthepatectomy liver failure (PHLF) in extended hepatectomies but has higher morbidity and mortality rates compared to conventional methods of volume enhancement. There are few studies of the incidence of PHLF after ALPPS and little information on how to avoid PHLF by functional testing. It remains unclear what causes the compromise in liver function despite rapid volume gain and if any of the modifications proposed reduce the incidence of PHLF...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344514/portal-vein-embolization-history-and-current-indications
#10
REVIEW
Hiroji Shinkawa, Shigekazu Takemura, Shogo Tanaka, Shoji Kubo
Portal vein embolization (PVE) was first adapted for patients undergoing major hepatectomy for hepatocellular carcinoma (HCC). In these patients, PVE caused hypertrophy of the unaffected liver and increased the volumetric ratio of future liver remnant (FLR) to total liver volume. 99mTechnetium-galactosyl human serum albumin (99mTc-GSA) scintigraphy revealed that PVE also induced a shift in hepatic function from the embolized part to the nonembolized part of the liver. Various hepatobiliary malignancies can be treated using PVE, and PVE is increasingly being used to expand the indication for major hepatectomy in patients with initially insufficient FLR volume or function...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344353/effects-of-tnf-receptor-blockade-on-in-vitro-cell-survival-and-response-to-negative-energy-balance-in-dairy-cattle
#11
C A Martel, L K Mamedova, J E Minton, M Garcia, C Legallet, B J Bradford
Background: Associative data and some controlled studies suggest that the inflammatory cytokine tumor necrosis factor (TNF) α can induce fatty liver in dairy cattle. However, research demonstrating that TNFα is a necessary component in the etiology of bovine fatty liver is lacking. The aim of this work was to evaluate whether blocking TNFα signaling with a synthetic cyclic peptide (TNF receptor loop peptide; TRLP) would improve liver metabolic function and reduce triglyceride accumulation during feed restriction...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29344254/inhibitory-effect-of-the-low-toxic-exogenous-aryl-hydrocarbon-receptor-modulator-3-3-diindolylmethane-on-gastric-cancer-in-mice
#12
Mingli Su, Chenchen Qian, Yumin Hu, Wenhua Lu, Rongkang Huang, Minhu Chen, Jie Chen
3'3-Diindolylmethane (DIM) has been proved to exhibit anticancer properties in many solid tumors. In our previous study, we demonstrated that DIM inhibited SGC7901 cell proliferation by inducing apoptosis and delaying cell cycle progression. Herein, we further explored the anti-tumor effect of DIM on SGC-7901 tumor bearing mice. Tumors were excised, weighed, and tested by western blot and TdT-UTP nick-end labeling (TUNEL) assay. Blood samples were collected for biochemical analysis. The expression levels of AhR and cytochrome P450, family 1, subfamily A, polypeptide 1 (CYP1A1) protein were evaluated by western-blot assay...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29340827/single-incision-laparoscopic-hepaticojejunostomy-for-children-with-perforated-choledochal-cysts
#13
Mei Diao, Long Li, Wei Cheng
BACKGROUND: Conventionally, perforated choledochal cyst (CDC) is a contraindication of laparoscopic treatment. The current study is to evaluate efficacy of single-incision laparoscopic hepaticojejunostomy (SILH) in children with perforated CDCs. METHODS: One hundred and thirty-three children with perforated CDCs who underwent SILHs in our hospital between August 2011 and August 2017 were reviewed. RESULTS: Fifteen (11.3%) patients were converted to open procedures due to severe adhesions and oozing...
January 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29339491/kinase-independent-function-of-e-type-cyclins-in-liver-cancer
#14
Yan Geng, Wojciech Michowski, Joel M Chick, Yaoyu E Wang, M Emmanuelle Jecrois, Katharine E Sweeney, Lijun Liu, Richard C Han, Nan Ke, Agnieszka Zagozdzon, Ewa Sicinska, Roderick T Bronson, Steven P Gygi, Piotr Sicinski
E-type cyclins (cyclins E1 and E2) are components of the core cell cycle machinery and are overexpressed in many human tumor types. E cyclins are thought to drive tumor cell proliferation by activating the cyclin-dependent kinase 2 (CDK2). The cyclin E1 gene represents the site of recurrent integration of the hepatitis B virus in the pathogenesis of hepatocellular carcinoma, and this event is associated with strong up-regulation of cyclin E1 expression. Regardless of the underlying mechanism of tumorigenesis, the majority of liver cancers overexpress E-type cyclins...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339226/model-and-methods-to-assess-hepatic-function-from-indocyanine-green-fluorescence-dynamical-measurements-of-liver-tissue
#15
Chloe Audebert, Irene E Vignon-Clementel
The indocyanine green (ICG) clearance, presented as plasma disappearance rate is, presently, a reliable method to estimate the hepatic "function". However, this technique is not instantaneously available and thus cannot been used intra-operatively (during liver surgery). Near-infrared spectroscopy enables to assess hepatic ICG concentration over time in the liver tissue. This article proposes to extract more information from the liver intensity dynamics by interpreting it through a dedicated pharmacokinetics model...
January 12, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29336868/the-therapeutic-potential-of-targeting-the-peripheral-endocannabinoid-cb1-receptor-system
#16
REVIEW
Joseph Tam, Liad Hinden, Adi Drori, Shiran Udi, Shahar Azar, Saja Baraghithy
Endocannabinoids (eCBs) are internal lipid mediators recognized by the cannabinoid-1 and -2 receptors (CB1R and CB2R, respectively), which also mediate the different physiological effects of marijuana. The endocannabinoid system, consisting of eCBs, their receptors, and the enzymes involved in their biosynthesis and degradation, is present in a vast number of peripheral organs. In this review we describe the role of the eCB/CB1R system in modulating the metabolism in several peripheral organs. We assess how eCBs, via activating the CB1R, contribute to obesity and regulate food intake...
January 11, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29336270/in-silico-ligand-based-identification-of-novel-acetylcholinesterase-inhibitors-against-alzheimer-s-disease-ad
#17
Mohammad Usman Mirza, Nazia Ikram, Nauman Mazhar, Kanzal Iman, Mehwish Riaz, Mohammad A Kamal
Alzheimer disease (AD) is a hot research topic currently across the world, characterized by the formation of β-amyloid plaques and neurofibrillary tangles. Inhibition of acetylcholinesterase (AChE) has gained much importance since the discovery of the involvement of peripheral anionic site (PAS) as an allosteric regulator of AChE. Progression of this neurodegenerative disorder causes a deficit in the cholinergic activity that leads towards cognitive decline. Therapeutic interventions in AD are largely focused upon AChE inhibitors designed essentially to prevent the loss of cholinergic function...
January 15, 2018: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/29334918/colorectal-cancer-liver-metastases-a-population-based-study-on-incidence-management-and-survival
#18
Jennie Engstrand, Henrik Nilsson, Cecilia Strömberg, Eduard Jonas, Jacob Freedman
BACKGROUND: Colorectal cancer (CRC) is a leading cause of cancer-associated deaths with liver metastases developing in 25-30% of those affected. Previous data suggest a survival difference between right- and left-sided liver metastatic CRC, even though left-sided cancer has a higher incidence of liver metastases. The aim of the study was to describe the liver metastatic patterns and survival as a function of the characteristics of the primary tumour and different combinations of metastatic disease...
January 15, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29333040/pharmacological-screening-of-trachyspermum-ammi-for-antihyperlipidemic-activity-in-triton-x-100-induced-hyperlipidemia-rat-model
#19
Uzma Saleem, Saba Riaz, Bashir Ahmad, Mohammad Saleem
Background: Mortality rate is increasing due to cardiovascular problems throughout the world. These cardiac problems are directly associated with dyslipidemia. Aim: The aim of this study was to evaluate the antihyperlipidemic effect of aqueous extract and methanol extract of Trachyspermum ammi at 1 g/kg, 3 g/kg, and 5 g/kg dose levels in rats. Materials and Methods: For this purpose, 45 male albino rats were used and randomly divided into nine equal groups (n = 5)...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29332607/the-role-of-t2-weighted-gradient-echo-in-the-diagnosis-of-tumefactive-intrahepatic-extramedullary-hematopoiesis-in-myelodysplastic-syndrome-and-diffuse-hepatic-iron-overload-a-case-report-and-review-of-the-literature
#20
Abel A Belay, Andrew M Bellizzi, Alan H Stolpen
BACKGROUND: Extramedullary hematopoiesis is the proliferation of hematopoietic cells outside bone marrow secondary to marrow hematopoiesis failure. Extramedullary hematopoiesis rarely presents as a mass-forming hepatic lesion; in this case, imaging-based differentiation from primary and metastatic hepatic neoplasms is difficult, often leading to biopsy for definitive diagnosis. We report a case of tumefactive hepatic extramedullary hematopoiesis in the setting of myelodysplastic syndrome with concurrent hepatic iron overload, and the role of T2*-weighted gradient-echo magnetic resonance imaging in differentiating extramedullary hematopoiesis from primary and metastatic hepatic lesions...
January 15, 2018: Journal of Medical Case Reports
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