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Thamer Alghamdi, Christoph Viebahn, Christoph Justinger, Thomas Lorf
The risk of ischemia of segment IV after split liver resection is high. This anatomical study was done to identify the arterial blood supply and the intrahepatic distribution of liver segment IV. The anatomy of segment IV was studied in 29 livers from adult cadavers. To identify the arterial blood supply of segment IV, water and ink were injected into the various branches of the hepatic artery and the outflow through segment IV and discoloration of the liver parenchyma were observed. In 23 of the 29 livers (79...
October 24, 2016: American Journal of Transplantation
T-Y Liu, J Li, X-H Wen, H Zhang, Q Gui
OBJECTIVE: To analyze the efficacy of open nephron-sparing surgery (NSS) in the treatment of complex renal cell carcinoma. PATIENTS AND METHODS: A total of 118 patients with complex renal cell carcinoma (T1N0M0, clear cell carcinoma) were included in this study, and assigned into open radical nephrectomy (RN) group (35 patients), open NSS group (45 patients) and laparoscopic NSS group (38 patients). After 3 years of follow-up, the clinical efficacy was analyzed...
October 2016: European Review for Medical and Pharmacological Sciences
F Biscetti, G Straface, D Pitocco, F Angelini, G Tinelli, R Landolfi, A Flex
OBJECTIVE: Fibroblast growth factor 23 (FGF23) was demonstrated to be involved in the occurrence and development of cardiovascular disease (CVD). The aim of this study was to investigate the potential role of FGF23 on presence and severity of peripheral arterial disease (PAD) in type 2 diabetic patients. PATIENTS AND METHODS: In this study, we analyzed FGF23 serum levels in 413 type 2 diabetic patients with PAD and in 598 diabetic controls without lower limbs atherosclerosis...
October 2016: European Review for Medical and Pharmacological Sciences
Aijuan Yan, Tingting Zhang, Xiao Yang, Jiaxiang Shao, Ningzhen Fu, Fanxia Shen, Yi Fu, Weiliang Xia
Thromboxane A2 receptor (TXA2R) activation is thought to be involved in thrombosis/hemostasis and inflammation responses. We have previously shown that TXA2R antagonist SQ29548 attenuates BV2 microglia activation by suppression of ERK pathway, but its effect is not tested in vivo. The present study aims to explore the role of TXA2R on microglia/macrophages activation after ischemia/reperfusion brain injury in mice. Adult male ICR mice underwent 90-min transient middle cerebral artery occlusion (tMCAO). Immediately and 24 h after reperfusion, SQ29548 was administered twice to the ipsilateral ventricle (10 μl, 2...
October 24, 2016: Scientific Reports
Yunes Panahi, Danial Roshandel, Mohammad Mehdi Sadoughi, Mostafa Ghanei, Amirhossein Sahebkar
Sulfur mustard (SM; mustard gas) is a classic chemical warfare agent that has been used in several wars and is still a potential threat especially in the Middle-East region. Victims experience acute symptoms in air-exposed organs including skin, respiratory tract and the eyes. Survivors of the acute stage might develop chronic or delayed-onset complications in the exposed organs. The exact mechanism(s) of SM-induced tissue damage is still unknown, however DNA alkylation and oxidative damage are the most relevant mechanisms...
October 21, 2016: Current Pharmaceutical Design
Athanasios Tsiouris, Lynn Wilson, Rajesh B Sekar, Abeel A Mangi, James J Yun
BACKGROUND: A lack of donor hearts remains a major limitation of heart transplantation. Hearts from Centers for Disease Control (CDC) high-risk donors can be utilized with specific recipient consent. However, outcomes of heart transplantation with CDC high-risk donors are not well known. We sought to define outcomes, including posttransplant hepatitis and human immunodeficiency virus (HIV) status, in recipients of CDC high-risk donor hearts at our institution. METHODS: All heart transplant recipients from August 2010 to December 2014 (n = 74) were reviewed...
October 23, 2016: Journal of Cardiac Surgery
Qian Sun, Patricia Loughran, Richard Shapiro, Indira H Shrivastava, Daniel J Antoine, Tunliang Li, Zhengzheng Yan, Jie Fan, Timothy R Billiar, Melanie J Scott
: Sterile liver inflammation, such as liver ischemia reperfusion, hemorrhagic shock after trauma and drug-induced liver injury is initiated and regulated by endogenous mediators including DNA and reactive oxygen species. Here we identify a novel mechanism for redox-mediated regulation of AIM2-inflammasome activation in hepatocytes after redox stress in mice, which occurs via interaction with cytosolic HMGB1. We show that in liver during hemorrhagic shock in mice, and in hepatocytes after hypoxia with reoxygenation, cytosolic HMGB1 associates with AIM2 and is required for activation of caspase-1 in response to cytosolic DNA...
October 24, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Nisha Panth, Keshav Raj Paudel, Kalpana Parajuli
Cardiovascular diseases (CVDs) have been the prime cause of mortality worldwide for decades. However, the underlying mechanism of their pathogenesis is not fully clear yet. It has been already established that reactive oxygen species (ROS) play a vital role in the progression of CVDs. ROS are chemically unstable reactive free radicals containing oxygen, normally produced by xanthine oxidase, nicotinamide adenine dinucleotide phosphate oxidase, lipoxygenases, or mitochondria or due to the uncoupling of nitric oxide synthase in vascular cells...
2016: Advances in Medicine
Hui-Li Tan, Kok-Gan Chan, Priyia Pusparajah, Acharaporn Duangjai, Surasak Saokaew, Tahir Mehmood Khan, Learn-Han Lee, Bey-Hing Goh
Cardiovascular diseases (CVDs) are among the leading causes of morbidity and mortality in both the developed and developing world. Rhizoma coptidis (RC), known as Huang Lian in China, is the dried rhizome of medicinal plants from the family Ranunculaceae, such as Coptis chinensis Franch, C. deltoidea C.Y. Cheng et Hsiao, and C. teeta Wall which has been used by Chinese medicinal physicians for more than 2000 years. In China, RC is a common component in traditional medicines used to treat CVD associated problems including obesity, diabetes mellitus, hyperlipidemia, hyperglycemia and disorders of lipid metabolism...
2016: Frontiers in Pharmacology
Rui Zhang, Lotte Bonde Bertelsen, Christian Flø, Yan Wang, Hans Stødkilde-Jørgensen
BACKGROUND AND PURPOSE: Due to well-developed Circle of Willis in pigs, it is technically challenging to make persistent focal ischemic stroke based on occlusion of cerebral arteries. Endothelin-1 could cause a focal lesion by forcing transient but strong vasoconstriction in the circumscribed injected area. Its use in porcine stroke model has drawn attention lately. However, all the porcine endothelin-1 induced models were euthanized soon after surgery. Whether the brain lesion is persistent, and whether they could cause neurological deficit are not known...
October 20, 2016: Neuroscience Letters
Gil Benedek, Arthur A Vandenbark, Nabil J Alkayed, Halina Offner
The worldwide prevalence of stroke continues to rise despite recent successes in treating acute ischemic stroke. With limited patient eligibility and associated risk of tPA and mechanical thrombectomy, new preventive and therapeutic modalities are needed to stave the rising wave of stroke. Inflammation plays a key role in brain damage after cerebral ischemia, and novel therapies that target pro-inflammatory cells have demonstrated promise for treatment for stroke. Partial MHC class II constructs have been shown to prevent and/or reverse clinical signs of various inflammatory diseases such as experimental autoimmune encephalomyelitis, collagen-induced arthritis and experimental autoimmune uveitis, by reducing the number and frequency of activated cells in the damaged CNS...
October 20, 2016: Neurochemistry International
Julia M Boll, Kenneth W Sharp, C Louis Garrard, Thomas C Naslund, John A Curci, R James Valentine
BACKGROUND: True aneurysms of the gastroduodenal (GDA) and pancreaticoduodenal (PDA) arteries have been attributed to increased collateral flow due to tandem celiac artery stenosis or occlusion. While GDA/PDA aneurysm exclusion is recommended because of the high reported risk of rupture, it remains uncertain whether simultaneous celiac artery reconstruction is necessary to preserve end-organ flow. STUDY DESIGN: A retrospective analysis of consecutive patients admitted 1996-2015 with true aneurysms of the GDA or PDA...
October 20, 2016: Journal of the American College of Surgeons
Shu Jiang, Yulan Liu, Jing Wang, Yue Zhang, Yaocheng Rui, Yuefan Zhang, Tiejun Li
Monocyte locomotion inhibitory factor (MLIF), a heat-stable pentapeptide produced by Entamoeba histolytica, has anti-inflammatory function and protective effect on ischemic stroke. In this study, we evaluated the effect of MLIF on myocardial ischemia. The myocardial ischemia reperfusion (I/R) model was established by ligation of the left anterior descending branch (LAD) using 8-0 silk suture for 30min followed by 3h reperfusion in mice. After sacrifice, the serum concentrations of cardiac troponin I (cTnI), creatine kinase (CK), lactate dehydrogenase (LDH) as well as the heart infarct size were measured...
October 20, 2016: Life Sciences
Mathias Holm Sørgaard, Klaus Fuglsang Kofoed, Jesper James Linde, Richard Thomas George, Carlos Eduardo Rochitte, Gudrun Feuchtner, Joao A C Lima, Jawdat Abdulla
OBJECTIVES: The aim of this study is to provide a meta-analysis of all published studies assessing the diagnostic accuracy of stress CT myocardial perfusion imaging (CTP) in patients suspected of or with known coronary artery disease. This analysis is limited to static stress CTP. METHODS: Systematic literature review and meta-analysis of studies examining the diagnostic accuracy of static CTP imaging alone or combined with coronary CT angiography (CTA) in comparison to single photon emission computed tomography (SPECT), magnetic resonance perfusion (MRP), and/or invasive coronary angiography with and without fractional flow reserve (FFR)...
October 15, 2016: Journal of Cardiovascular Computed Tomography
Tae-Kyeong Lee, Joon Ha Park, Ji Hyeon Ahn, Myoung Cheol Shin, Jun Hwi Cho, Eun Joo Bae, Young-Myeong Kim, Moo-Ho Won, Choong-Hyun Lee
Duloxetine (DXT), a serotonin/norepinephrine reuptake inhibitor, is widely used for the treatment of major depressive disorders. In the present study, we investigated the neuroprotective effect of pre-treated DXT in the hippocampal CA1 region following transient global cerebral ischemia. Pre-treatment with 40mg/kg DXT protected pyramidal neurons in the CA1 region from ischemia-reperfusion injury. In addition, pre-treatment with DXT reduced ischemia-induced activations of microglia and astrocytes in the ischemic CA1 region...
November 15, 2016: Journal of the Neurological Sciences
Qian Zhang, Zhen-Wei Chen, Yong-Hua Zhao, Bo-Wen Liu, Nai-Wei Liu, Chien-Chih Ke, Hong-Mei Tan
Being a potential candidate for stroke treatment, bone marrow stromal cells (BMSCs) have been demonstrated to be able to enhance angiogenesis and proliferation of reactive astrocytes which subsequently lead to the amelioration of neurological injury. Increasing evidences further indicate combined BMSCs with certain agent such as simvastatin may have improved therapeutic effect. Sodium Ferulate (SF) and n-butylidenephthalide (BP), two main components of Radix Angelica Sinensis, are proved to be the important regulators of stem cells in cell migration, differentiation and pluripotency maintenance...
October 21, 2016: Cell Transplantation
Ye Li, Yinan Luo, Tianfei Luo, Bin Lu, Chen Wang, Yanhong Zhang, Meihua Piao, Chunsheng Feng, Pengfei Ge
Protein aggregation has been proved to be a pathological basis accounting for neuronal death caused by either transient global ischemia or oxygen glucose deprivation (OGD), and inhibition of protein aggregation is emerging as a potential strategy of preventing brain damage. Trehalose was found to inhibit protein aggregation caused by neurodegenerative diseases via induction of autophagy, whereas its effect is still elusive on ischemia-induced protein aggregation. In this study, we investigated this issue by using rat model of transient global ischemia and SH-SY5Y model of OGD...
October 22, 2016: Molecular Neurobiology
Reza Badalzadeh, Ako Azimi, Alireza Alihemmati, Bahman Yousefi
It has been shown that diabetes modifies the myocardial responses to ischemia/reperfusion (I/R) and to cardioprotective agents. In this study, we aimed to investigate the effects of combined treatment with ischemic postconditioning (IPostC) and cyclosporine A (CsA) on inflammation and apoptosis of the diabetic myocardium injured by I/R. Eight weeks after induction of diabetes in Wistar rats, hearts were mounted on a Langendorff apparatus and were subsequently subjected to a 30-min regional ischemia followed by 45-min reperfusion...
October 22, 2016: Journal of Physiology and Biochemistry
Jianchun Huang, Xiaojun Tang, Fangxing Ye, Junhui He, Xiaolong Kong
BACKGROUND/AIMS: Coronary heart disease is characterized by vascular stenosis or occlusion resulting in myocardial ischemia, hypoxia and necrosis. In China, the combination of aspirin and Fufang Danshen Diwan (FDD), a traditional Chinese medicine formula, has been suggested in the treatment of coronary heart disease. There have been several studies comparing the effectiveness of aspirin alone and in combination with FDD to treat coronary artery disease; however, it remains unclear whether combined aspirin therapy is superior...
October 24, 2016: Cellular Physiology and Biochemistry
Zuolei Chen, Donat R Spahn, Xuewei Zhang, Yingzhi Liu, Haichen Chu, Zhongkai Liu
BACKGROUND/AIMS: The purpose of this study was to investigate the implications of protein kinase C-epsilon (PKCε), Extracellular Signal-regulated Kinase 1/2 (ERK1/2) and mitochondrial permeability transition pore (mPTP) in myocardial protection induced by morphine postconditioning (MpostC). METHODS: The isolated rat hearts were randomly assigned into one of eight groups. Hearts in time control (TC) group were constantly perfused for 105min. Hearts in ischemia-reperfusion (I/R) group were subjected to 45 min of ischemia followed by 1 h of reperfusion...
October 24, 2016: Cellular Physiology and Biochemistry
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