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| 1 | Protective effect of naringenin on acetic acid-induced ulcerative colitis in rats显示文摘AIM:To evaluate the ameliorative effect of naringenin(NG)during ulcerative colitis(UC)in rats.METHODS:Rats were treated with three different doses(25,50 and 100 mg/kg per day)of NG and a single dose of mesalazine(MES,300 mg/kg per day)for seven days prior to ulcerative colitis induction by4%acetic acid(AA).Twenty four hours after AA rectal administration,animals were scarified and the colonic tissues were dissected.Colonic mucus content was estimated using Alcian blue dye binding technique.In colon tissues,levels of total glutathione sulphadryls(T-GSH),non-protein sulphadryls(NP-SH)and thiobarbituric acid reactive substances(TBARS)were evaluated.The activities of the antioxidant enzymes,catalase(CAT)and superoxide dismutase(SOD)were measured.Concentrations of nucleic acids(DNA and RNA)and total protein were also estimated in colon tissues.Colonic levels of tumor necrosis factor-(TNF-),interleukin-1(IL-1),interleukin-6(IL-6),prostaglandin E2(PGE2)and nitric oxide(NO)were estimated.In cross section of colitis tissue the histopathological changes were observed.RESULTS:Colonic mucus content was decreased in AA compared to controls(587.09±65.59 mg/kg vs941.78±68.41 mg/kg,P<0.001).AA administration markedly reduced T-GSH(5.25±0.37 nmol/L vs 3.04±0.24 nmol/L,P<0.01),NP-SH(3.16±0.04 nmol/L vs 2.16±0.30 nmol/L,P<0.01),CAT(6.77±0.40 U/mg vs 3.04±0.2 U/mg,P<0.01)and SOD(3.10±0.11U/mg vs 1.77±0.18 U/mg,P<0.01)while TBARS,TNF-,IL-1,IL-6,PGE2 and NO levels(15.09±3.84nmol/L vs 59.90±16.34 nmol/L,P<0.01;113.56±1.91 pg/mg vs 134.24±4.77 pg/mg,P<0.01;209.20±36.38 pg/mg vs 422.19±31.47 pg/mg,P<0.01;250.83±25.09 pg/mg vs 638.58±115.9 pg/mg,P<0.01;248.19±36.98 pg/mg vs 541.74±58.34 pg/mg,P<0.01 and 81.26±2.98 mmol/g vs 101.90±10.73 mmol/g,P<0.001)were increased in colon of rats with UC compared controls respectively.Naringenin supplementation,significantly and dose dependently increased the colonic mucus content.The elevated TBARS levels were significantly decreased(39.35±5.86nmol/L,P<0.05;26.74±3.17 nmol/L,P<0.01 nmol/L and 17.74±2.69 nmol/L,P<0.01)compared to AA(59.90±16.34 nmol/L)group while the decreased levels of T-GSH and NP-SH and activities of CAT and SOD found increased by NG treatments in dose dependent manner.The decreased values of nucleic acids and total protein in AA group were also significantly(P<0.01)increased in all three NG supplemented groupsrespectively.NG pretreatment inhibited the TNF-levels(123.76±3.76 pg/mg,122.62±3.41 pg/mg and121.51±2.61 pg/mg vs 134.24±4.78 pg/mg,P<0.05)compared to AA group,respectively.Interleukins,IL-1 and IL-6 levels were also decreased in NG50+AA(314.37±16.31 pg/mg and 292.58±23.68 pg/mg,P<0.05)and NG100+AA(416.72±49.62 pg/mg and 407.96±43.87 pg/mg,P<0.05)when compared to AA(352.46±8.58 pg/mg and 638.58±115.98pg/mg)group.Similar decrease(P<0.05)was seen in PGE2and NO values when compared to AA group.The group pretreated with MES,as a reference drug,showed significant(P<0.01)protection against the changes induced in colon tissue by AA administration respectively.CONCLUSION:In present study,NG produced antioxidant and anti-inflammatory effects demonstrating protective effect in inflammatory bowel disease. | Salim S Al-Rejaie Hatem M Abuohashish Maher M Al-Enazi Abdullah H Al-Assaf Mihir Y Parmar Mohammed M Ahmed | 2013 | World Journal of Gastroenterology2013，19，34： | 20 |
| 2 | Liver diseases in pregnancy: Diseases not unique to pregnancy显示文摘Pregnancy is a special clinical state with several normal physiological changes that influence body organs including the liver.Liver disease can cause significant morbidity and mortality in both pregnant women and their infants.Few challenges arise in reaching an accurate diagnosis in light of such physiological changes.Laboratory test results should be carefully interpreted and the knowledge of what normal changes to expect is prudent to avoid clinical misjudgment.Other challenges entail the methods of treatment and their safety for both the mother and the baby.This review summarizes liver diseases that are not unique to pregnancy.We focus on viral hepatitis and its mode of transmission,diagnosis,effect on the pregnancy,the mother,the infant,treatment,and breast-feeding.Autoimmune hepatitis,primary biliary cirrhosis,primary sclerosing cholangitis,Wilson’s disease,Budd Chiari and portal vein thrombosis in pregnancy are also discussed.Pregnancy is rare in patients with cirrhosis because of the metabolic and hormonal changes associated with cirrhosis.Variceal bleeding can happen in up to 38%of cirrhotic pregnant women.Management of portal hypertension during pregnancy is discussed.Pregnancy increases the pathogenicity leading to an increase in the rate of gallstones.We discuss some of the interventions for gallstones in pregnancy if symptoms arise.Finally,we provide an overview of some of the options in managing hepatic adenomas and hepatocellular carcinoma during pregnancy. | Ashraf A Almashhrawi Khulood T Ahmed Rubayat N Rahman Ghassan M Hammoud Jamal A Ibdah | 2013 | World Journal of Gastroenterology2013，19，43： | 17 |
| 3 | Autologous CD34^+ and CD133^+ stem cells transplantation in patients with end stage liver disease显示文摘AIM:To assess the utility of an autologous CD34 + and CD133 + stem cells infusion as a possible therapeutic modality in patients with end-stage liver diseases.METHODS:One hundred and forty patients with endstage liver diseases were randomized into two groups.Group 1,comprising 90 patients,received granulocyte colony stimulating factor for five days followed by autologous CD34 + and CD133 + stem cell infusion in the portal vein.Group 2,comprising 50 patients,received regular liver treatment only and served as a control group.RESULTS:Near normalization of liver enzymes and improvement in synthetic function were observed in 54.5% of the group 1 patients;13.6% of the patients showed stable states in the infused group.None of the patients in the control group showed improvement.No adverse effects were noted.CONCLUSION:Our data showed that a CD34 + and CD133 + stem cells infusion can be used as supportive treatment for end-stage liver disease with satisfactory tolerability. | Hosny Salama Abdel-Rahman N Zekri Abeer A Bahnassy Eman Medhat Hanan A Halim Ola S Ahmed Ghada Mohamed Sheren A Al Alim Ghada M Sherif | 2010 | World Journal of Gastroenterology2010，16，42： | 16 |
| 4 | P2RX7 sensitizes Mac-1/ICAM-1-dependent leukocyte- endothelial adhesion and promotes neurovascular injury during septic encephalopathy显示文摘 | Huan Wang Ling-Juan Hong Ji-Yun Huang Quan Jiang Rong-Rong Tao Chao Tan Nan-Nan Lu Cheng-Kun Wang Muhammad M Ahmed Ying-Mei Lu Zhi-Rong Liu Wei-Xing Shi En-Yin Lai Christopher S Wilcox Feng Han | 2015 | Cell Research2015，25，6： | 16 |
| 5 | Trends and outcomes of pancreaticoduodenectomy for periampullary tumors: A 25-year single-center study of 1000 consecutive cases显示文摘AIM To evaluate the evolution, trends in surgical approaches a n d r e c o n s t r u c t i o n t e c h n i q u e s, a n d i m p o r t a n t lessons learned from performing 1000 consecutive pancreaticoduodenectomies(PDs) for periampullary tumors.METHODS This is a retrospective review of the data of all patients who underwent PD for periampullary tumor during the period from January 1993 to April 2017. The data were categorized into three periods, including early period(1993-2002), middle period(2003-2012), and late period(2013-2017).RESULTS The frequency showed PD was increasingly performed after the year 2000. With time, elderly, cirrhotic and obese patients, as well as patients with uncinate process carcinoma and borderline tumor were increasingly selected for PD. The median operative time and postoperative hospital stay decreased significantly over the periods. Hospital mortality declined significantly, from 6.6% to 3.1%. Postoperative complications significantly decreased, from 40% to 27.9%. There was significant decrease in postoperative pancreatic fistula in the second 10 years, from 15% to 12.7%. There was a significant improvement in median survival and overall survival among the periods.CONCLUSION Surgical results of PD significantly improved, with mortality rate nearly reaching 3%. Pancreatic reconstruction following PD is still debatable. The survival rate was also improved but the rate of recurrence is still high, at 36.9%. | ayman el nakeeb waleed askar ehab atef ehab el hanafy ahmad m sultan tarek salah ahmed shehta mohamed el sorogy emad hamdy mohamed el hemly ahmed a el-geidi tharwat kandil mohamed el shobari talaat abd allah amgad fouad mostafa abu zeid ahmed abu el eneen nabil gad el-hak gamal el ebidy omar fathy ahmed sultan mohamed abdel wahab | 2017 | World Journal of Gastroenterology2017，23，38： | 15 |
| 6 | Evaluation of extracts and essential oil from Callistemon viminalis leaves:Antibacterial and antioxidant activities,total phenolic and flavonoid contents显示文摘Objective:To investigate antioxidant and antibacterial activities of Callistemon viminalis(C.viminalis)leaves.Methods:The essential oil of C.viminalis leaves obtained by hydrodistillation was analyzed by GC/MS.Different extracts were tested for total phenolic and flavonoid contents and in vitro antioxidant(DPPH assay)and antibacterial(agar disc diffusion and 96-well micro-plates methods)actives.Results:Fourteen components were identified in the essential oil,representing 98.94%of the total oil.The major components were 1,8-cineole(64.53%)andα-pinene(9.69%).Leaf essential oil exhibited the highest antioxidant activity of(88.60±1.51)%comparable to gallic acid,a standard compound[(80.00±2.12)%].Additionally,the biggest zone of inhibitions against the studied bacterial strains was observed by the essential oil when compared to the standard antibiotic(tetracycline).The crude methanol extract and ethyl acetate fraction had a significant antibacterial activity against the tested bacterial strains.Conclusions:It can be suggested that C.viminalis is a great potential source of antibacterial and antioxidant compounds useful for new antimicrobial drugs from the natural basis.The present study revealed that the essential oil as well as the methanol extracts and ethyl acetate fraction of C.viminalis leaves exhibited highly significant antibacterial activity against the tested bacterial strains. | Mohamed ZM Salem Hayssam M Ali Nader A El-Shanhorey Ahmed Abdel-Megeed | 2013 | Asian Pacific Journal of Tropical Medicine2013，6，10： | 14 |
| 7 | Recent biological trends in management of fracture non-union显示文摘Bone regeneration is a complex, well-orchestrated physiological process of bone formation, which can be seen during normal fracture healing, and is involved in continuous remodelling throughout adult life. Currently,there is a plethora of different strategies to augment the impaired or 'insufficient' bone-regeneration process, including the 'gold standard' autologous bone graft, free fibula vascularised graft, allograft implantation, and use of growth factors, osteoconductive scaffolds, osteoprogenitor cells and distraction osteogenesis. Improved 'local' strategies in terms of tissue engineering and gene therapy, or even 'systemic' enhancement of bone repair, are under intense investigation, in an effort to overcome the limitations of the current methods, to produce bone-graft substitutes with biomechanical properties that are as identical to normal bone as possible, to accelerate the overall regeneration process, or even to address systemic conditions, such as skeletal disorders and osteoporosis. An improved understanding of the molecular and cellular events that occur during bone repair and remodeling has led to the development of biologic agents that can augment the biological microenvironment and enhance bone repair. Orthobiologics, including stem cells, osteoinductive growth factors, osteoconductive matrices, and anabolic agents, are available clinically for accelerating fracture repair and treatment of compromised bone repair situations like delayed unions and nonunions. A lack of standardized outcome measures for comparison of biologic agents in clinical fracture repair trials, frequent off-label use, and a limited understanding of the biological activity of these agents at the bone repair site have limited their efficacy in clinical applications. | Khaled M Emara Ramy Ahmed Diab Ahmed Khaled Emara | 2015 | World Journal of Orthopedics2015，6，8： | 13 |
| 8 | Antibacterial efficacy of the seed extracts of Melia azedarach against some hospital isolated human pathogenic bacterial strains显示文摘Objective:To investigate the antibacterial potential of the polar and non-polar extracts of the seeds of Melia azedarach(M.azedarach) L.(Meliaceae) against eighteen hospital isolated human pathogenic bacterial strains.Methods:Petrol,benzene,ethyl acetate,methanol,and aqueous extracts at five different concentrations(1,2,5,10 and 15 mg/mL) were evaluated.Disk diffusion method was followed to evaluate the antibacterial efficacy.Results:All extracts of the seeds demonstrated significant antibacterial activity against tested pathogens.Among all extracts,ethyl acetate extract revealed the highest inhibition comparatively.The present study also favored the traditional uses reported earlier.Conclusions:Results of this study strongly confirm that the seed extracts of M.azedarach could be effective antibiotics,both in controlling gram-positive and gram-negative human pathogenic infections. | Abdul Viqar Khan Qamar Uddin Ahmed M Ramzan Mir Indu Shukla Athar Ali Khan | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，1，6： | 11 |
| 9 | Predictors of long term survival after hepatic resection for hilar cholangiocarcinoma:A retrospective study of 5-year survivors显示文摘AIM:To determine predictors of long term survival after resection of hilar cholangiocarcinoma(HC) by comparing patients surviving > 5 years with those who survived < 5 years.METHODS:This is a retrospective study of patients with pathologically proven HC who underwent surgical resection at the Gastroenterology Surgical Center,Mansoura University,Egypt between January 2002 and April 2013.All data of the patients were collected from the medical records.patients were divided into two groups according to their survival:patients surviving less than 5 years and those who survived > 5 years.RESULTS:There were 34(14%) long term survivors(5 year survivors) among the 243 patients.Fiveyear survivors were younger at diagnosis than those surviving less than 5 years(mean age,50.47 ± 4.45 vs 54.59 ± 4.98,p = 0.001).Gender,clinical presentation,preoperative drainage,preoperative serum bilirubin,albumin and serum glutamic-pyruvic transaminase were similar between the two groups.The level of CA 19-9 was significantly higher in patients surviving < 5 years(395.71 ± 31.43 vs 254.06 ± 42.19,p = 0.0001).Univariate analysis demonstrated nine variables to be significantly associated with survival > 5 year,includingyoung age(p = 0.001),serum CA19-9(p = 0.0001),non-cirrhotic liver(p = 0.02),major hepatic resection(p = 0.001),caudate lobe resection(p = 0.006),well differentiated tumour(p = 0.03),lymph node status(0.008),R0 resection margin(p = 0.0001) and early postoperative liver cell failure(p = 0.02).CONCLUSION:Liver status,resection of caudate lobe,lymph node status,R0 resection and CA19-9 were demonstrated to be independent risk factors for long term survival. | Mohamed Abd El Wahab Ayman El Nakeeb Ehab El Hanafy Ahmad M Sultan Ahmed Elghawalby Waleed Askr Mahmoud Ali Mohamed Abd El Gawad Tarek Salah | 2016 | World Journal of Gastrointestinal Surgery2016，8，6： | 10 |
| 10 | Liver diseases in pregnancy: Diseases unique to pregnancy显示文摘Pregnancy is a special clinical state with several normal physiological changes that influence body organs including the liver.Liver disease can cause significant morbidity and mortality in both pregnant women and their infants.This review summarizes liver diseases that are unique to pregnancy.We discuss clinical conditions that are seen only in pregnant women and involve the liver;from Hyperemesis Gravidarum that happens in 1out of 200 pregnancies and Intrahepatic Cholestasis of Pregnancy(0.5%-1.5%prevalence),to the more frequent condition of preeclampsia(10%prevalence)and its severe form;hemolysis,elevated liver enzymes,and a low platelet count syndrome(12%of pregnancies with preeclampsia),to the rare entity of Acute Fatty Liver of Pregnancy(incidence of 1 per 7270 to 13000deliveries).Although pathogeneses behind the development of these aliments are not fully understood,theories have been proposed.Some propose the special physiological changes that accompany pregnancy as a precipitant.Others suggest a constellation of factors including both the mother and her fetus that come together to trigger those unique conditions.Reaching a timely and accurate diagnosis of such conditions can be challenging.The timing of the condition in relation toward which trimester it starts at is a key.Accurate diagnosis can be made using specific clinical findings and blood tests.Some entities have well-defined criteria that help not only in making the diagnosis,but also in classifying the disease according to its severity.Management of these conditions range from simple medical remedies to measures such as immediate termination of the pregnancy.In specific conditions,it is prudent to have expert obstetric and medical specialists teaming up to help improve the outcomes. | Khulood T Ahmed Ashraf A Almashhrawi Rubayat N Rahman Ghassan M Hammoud Jamal A Ibdah | 2013 | World Journal of Gastroenterology2013，19，43： | 10 |
| 11 | Post-endoscopic retrograde cholangiopancreatography pancreatitis: Risk factors and predictors of severity显示文摘AIM To detect risk factors for post-endoscopic retrograde cholangiopancreatography(ERCP) pancreatitis(PEP) and investigate the predictors of its severity.METHODS This is a prospective cohort study of all patients who underwent ERCP.Pre-ERCP data,intraoperative data,and post-ERCP data were collected.RESULTS The study population consisted of 996 patients.Their mean age at presentation was 58.42(± 14.72) years,and there were 454 male and 442 female patients.Overall,PEP occurred in 102(10.2%) patients of the study population; eighty(78.4%) cases were of mild to moderate degree,while severe pancreatitis occurred in 22(21.6%) patients.No hospital mortality was reported for any of PEP patients during the study duration.Age less than 35 years(P = 0.001,OR = 0.035),narrower common bile duct(CBD) diameter(P = 0.0001) and increased number of pancreatic cannulations(P = 0.0001) were independent risk factors for the occurrence of PEP.CONCLUSION PEP is the most frequent and devastating complication after ERCP.Age less than 35 years,narrower median CBD diameter and increased number of pancreaticcannulations are independent risk factors for the occurrence of PEP.Patients with these risk factors are candidates for prophylactic and preventive measures against PEP. | Ayman El Nakeeb Ehab El Hanafy Tarek Salah Ehab Atef Hosam Hamed Ahmad M Sultan Emad Hamdy Mohamed Said Ahmed A El Geidie Tharwat Kandil Mohamed El Shobari Gamal El Ebidy | 2016 | World Journal of Gastrointestinal Endoscopy2016，8，19： | 10 |
| 12 | Updates in the pathophysiological mechanisms of Parkinson's disease: Emerging role of bone marrow mesenchymal stem cells显示文摘AIM: To explore the approaches exerted by mesenchymal stem cells(MSCs) to improve Parkinson's disease(PD) pathophysiology.METHODS: MSCs were harvested from bone marrowof femoral bones of male rats, grown and propagated in culture. Twenty four ovariectomized animals were classified into 3 groups: Group(1) was control, Groups(2) and(3) were subcutaneously administered with rotenone for 14 d after one month of ovariectomy for induction of PD. Then, Group(2) was left untreated, while Group(3) was treated with single intravenous dose of bone marrow derived MSCs(BM-MSCs). SRY gene was assessed by PCR in brain tissue of the female rats. Serum transforming growth factor beta-1(TGF-β1), monocyte chemoattractant protein-1(MCP-1) and brain derived neurotrophic factor(BDNF) levels were assayed by ELISA. Brain dopamine DA level was assayed fluorometrically, while brain tyrosine hydroxylase(TH) and nestin gene expression were detected by semi-quantitative real time PCR. Brain survivin expression was determined by immunohistochemical procedure. Histopathological investigation of brain tissues was also done.RESULTS: BM-MSCs were able to home at the injured brains and elicited significant decrease in serum TGF-β1(489.7 ± 13.0 vs 691.2 ± 8.0, P < 0.05) and MCP-1(89.6 ± 2.0 vs 112.1 ± 1.9, P < 0.05) levels associated with significant increase in serum BDNF(3663 ± 17.8 vs 2905 ± 72.9, P < 0.05) and brain DA(874 ± 15.0 vs 599 ± 9.8, P < 0.05) levels as well as brain TH(1.18 ± 0.004 vs 0.54 ± 0.009, P < 0.05) and nestin(1.29 ± 0.005 vs 0.67 ± 0.006, P < 0.05) genes expression levels. In addition to, producing insignificant increase in the number of positive cells for survivin(293.2 ± 15.9 vs 271.5 ± 15.9, P > 0.05) expression. Finally, the brain sections showed intact histological structure of the striatum as a result of treatment with BM-MSCs. CONCLUSION: The current study sheds light on the therapeutic potential of BM-MSCs against PD pathophysiology via multi-mechanistic actions. | Hanaa H Ahmed Ahmed M Salem Hazem M Atta Emad F Eskandar Abdel Razik H Farrag Mohamed A Ghazy Neveen A Salem Hadeer A Aglan | 2016 | World Journal of Stem Cells2016，8，3： | 9 |
| 13 | Primary hepatocellular carcinoma and metabolic syndrome:An update显示文摘Hepatocellular carcinoma(HCC) is the most common primary liver malignancy. The incidence of hepatocellular carcinoma has increased dramatically by 80% over the past two decades in the United States. Numerous basic science and clinical studies have documented a strong association between hepatocellular carcinoma and the metabolic syndrome. These studies have documented that, in most patients, non-alcoholic fatty liver disease is the hepatic manifestation of the metabolic syndrome, which may progress to hepatocellular carcinoma through the cirrhotic process. However, minority of patients with non-alcoholic fatty liver disease may progress to hepatocellular carcinoma without cirrhosis.This review summarizes the current literature of the link between hepatocellular carcinoma and metabolic syndrome with special emphasis on various components of the metabolic syndrome including risk of association with obesity, diabetes mellitus, hyperlipidemia,and hypertension. Current understanding of pathophysiology, clinical features, treatments, outcomes,and surveillance of hepatocellular carcinoma in the background of metabolic syndrome and non-alcoholic fatty liver disease is reviewed. With the current epidemic of metabolic syndrome, the number of patients with non-alcoholic fatty liver disease is increasing.Subsequently, it is expected that the incidence and prevalence of HCC will also increase. It is very important for the scientific community to shed more light on the pathogenesis of HCC with metabolic syndrome,both with and without cirrhosis. At the same time it is also important to quantify the risk of hepatocellular carcinoma associated with the metabolic syndrome in a prospective setting and develop surveillance recommendations for detection of hepatocellular carcinoma in patients with metabolic syndrome. | Rubayat Rahman Ghassan M Hammoud Ashraf A Al-mashhrawi Khulood T Ahmed Jamal A Ibdah | 2013 | World Journal of Gastrointestinal Oncology2013，5，9： | 8 |
| 14 | Development of an Arabic version of the National Eye Institute Visual Function Questionnaire as a tool to study eye diseases patients in Egypt显示文摘AIM:To develop and test an Arabic version of the National Eye Institute Visual Function Questionnaire-25(NEI-VFQ-25).METHODS:NEI-VFQ-25 was translated into Arabic according to WHO translation guidelines. We enrolled adult consenting patients with bilateral chronic eye diseases who presented to 14 hospitals across Egypt from October to December 2012, and documented their clinical findings. Psychometric properties were then tested using STATA.RESULTS:We recruited 379 patients, whose mean age was(54.5±15)y. Of 46.2% were males, 227 had cataract,31 had glaucoma, 23 had retinal detachment, 37 had diabetic retinopathy, and 61 had miscellaneous visual defects. Non-response rate and the floor and ceiling numbers of the Arabic version(ARB-VFQ-25) were calculated. Internal consistency was high in all subscales(except general health), with Cronbach-α ranging from0.702-0.911. Test-retest reliability was high(intraclass correlation coefficient 0.79).CONCLUSION:RB-VFQ-25 isareliableandvalidtool for assessing visual functions of Arabic speaking patients. However, some questions had high non-response rates and should be substituted by available alternatives. Our results support the importance of including self-reported visual functions as part of routine ophthalmologic examination. | Nizar Saleh Abdelfattah Mohamed Amgad Ahmed A Salama Marina E Israel Ghada A Elhawary Ahmed E Radwan Mohamed M Elgayar Tamer M EL Nakhal Islam T Elkhateb Heba A Hashem Doha K Embaby Amira A Elabd Reem K Elwy Magdi S Yacoub Hamdy Salem Mohamed Abdel-Baqy Ahmad Kassem | 2014 | International Journal of Ophthalmology(English edition)2014，7，5： | 8 |
| 15 | Direct-fed microbes: A tool for improving the utilization of low quality roughages in ruminants显示文摘For many years, ruminant nutritionists and microbiologists have been interested in manipulating the microbial ecosystem of the rumen to improve production efficiency of different ruminant species. Removal and restriction of antibiotics subtherapeutic uses from ruminant diets has amplified interest in improving nutrient utilization and animal performance and search for more safe alternatives. Some bacterial and fungal microorganisms as a direct-fed microbial(DFM) can be the most suitable solutions. Microorganisms that are commonly used in DFM for ruminants may be classified mainly as lactic acid producing bacteria(LAB), lactic acid utilizing bacteria(LUB), or other microorganism's species like Lactobacillus, Bifidobacterium, Enterococcus, Streptococcus, Bacillus, Propionibacterium, Megasphaera elsdenii and Prevotellabryantii, in addition to some fungal species of yeast such as Saccharomyces and Aspergillus. A definitive mode of action for bacterial or fungal DFM has not been established; although a variety of mechanisms have been suggested. Bacterial DFM potentially moderate rumen conditions, and improve weight gain and feed efficiency. Fungal DFM may reduce harmful oxygen from the rumen, prevent excess lactate production, increase feed digestibility, and alter rumen fermentation patterns. DFM may also compete with and inhibit the growth of pathogens, immune system modulation, and modulate microbial balance in the gastrointestinal tract. Improved dry matter intake, milk yield, fat corrected milk yield and milk fat content were obtained with DFM administration. However, the response to DFM is not constant; depending on dosages, feeding times and frequencies, and strains of DFM. Nonetheless, recent studies have supported the positive effects of DFM on ruminant performance. | Mona M Y Elghandour Abdelfattah Z M Salem Jose S Martínez Castaeda Luis M Camacho Ahmed E Kholif Juan C Vázquez Chagoyán | 2015 | Journal of Integrative Agriculture2015，14，3： | 7 |
| 16 | Thrombus aspiration during primary percutaneous coronary intervention for acute myocardial infarction:A review of clinical evidence and guidelines显示文摘Acute ST segment elevation myocardial infarction(STEMI) is characterized by complete thrombotic occlusion of a major coronary artery. Early recanalization of the infarct-related artery is most efficiently delivered by primary percutaneous coronary intervention(PPCI),however this does not always restore normal myocardial perfusion,mainly due to distal embolization of the thrombus and microvascular obstruction. Early evidence for manual thrombus aspiration during PPCI was promising and this was once considered an important aspect of the procedure,especially in patients with a high thrombus burden. However,a large body of evidence from recent major randomized controlled trials(notably TASTE and TOTAL) does not support the routine use of manual thrombus aspiration in patients with STEMI undergoing PPCI. | Muhammad Muzaffar Mahmood Jonathan Watt Javed M Ahmed | 2015 | World Journal of Cardiology2015，7，12： | 7 |
| 17 | Molecular basis for identification of species/isolates of gastrointestinal nematode parasites显示文摘Gastrointestinal(GI) parasitism is the most serious constraint throughout the world in small ruminants which causes significant production loss in animals.GI parasites are major contributor to reduce productivity in terms of meat,milk and wool in animals.Control of GI parasite is done primarily by anthelmintic treatment where choice and schedule of treatment is done after identification and quantitation of individual parasite.Identification of GI parasites is done through microscopic method by identifying specific morphological characteristics of egg and larva(L3).Since most of parasite eggs are having similar morphological characteristics, identification up to species level through microscopy is not possible in most of cases.To address this issue,molecular techniques are the viable alternative for identification of species as well as molecular level differences within a species(isolates) of parasites.Different DNA based molecular techniques viz.PCR,AFLP,RAPD,RFLP,PCR-SSCP,real time PCR,DNA microarray etc.have been used for identification and to assess the genetic diversity among parasite population.For identification of species,the characteristic sequence of genomic DNA of different species should differ to allow the delineation of species,but at the same time,no/minor variation within the species should exist.In contrast,for purpose of identifying population variants(strains/isolates), a considerable degree of variation in the sequence should exist within a species.Various target regions,including nuclear ribosomal DNA(rDNA),mitochondrial DNA(mtDNA) or repetitive DNA elements(microsatellite loci),which show considerable variation in the number of repeats within individuals have been employed to achieve the identification of parasites species or strain. | Ahmed M Singh MN Bera AK Bandyopadhyay S Bhattacharya D | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，8： | 6 |
| 18 | Role of relevant immune-modulators and cytokines in hepatocellular carcinoma and premalignant hepatic lesions显示文摘AIM To assess the levels of different immune modulators in patients with hepatocellular carcinoma(HCC),in relation to other hepatic diseases.METHODS Eighty-eight patients were included in the current study and represented patients with HCC(20),liver cirrhosis(28) and chronic hepatitis(CH;25),and normal controls(NC;15).Peripheral blood was isolated for immunophenotyping of active myeloid dendritic cells(m DCs;CD1 c and CD40),mature inactive myeloid cells(CD1 c and HLA),active plasmacytoid cells(p DCs;CD303 and CD40),mature inactive p DCs(CD30 and HLA),active natural killer(NK) cells(CD56 and CD161),active NK cells(CD56 and CD314) and inactive NK cells(CD56 and CD158) was done by flow cytometry.Serum levels of interleukin(IL)-2,IL-10,IL-12,IL-1β,interferon(IFN)-α,IFN-γ and tumor necrosis factor(TNF)-αR2 were assessed by ELISA.RESULTS Active m DCs(CD1 C+/CD40+) and inactive m DCs(CD1 c+/HLA+) were significantly decreased in HCC patients in relation to NC(P < 0.001).CD40+ expression on active p DCs was decreased in HCC patients(P < 0.001),and its level was not significantly changed among other groups.Inactive p DCs(CD303+/HLA+),inactive NKs(CD56+/CD158+) and active NKs(CD56+/CD161+) were not statistically changed among the four groups studied;however,the latter was increased in CH(P < 0.05).NKG2 D was statistically decreased in HCC,CH and cirrhosis(P < 0.001),and it was not expressed in 63%(12/20) of HCC patients.There was significant decrease of IL-2,IFN-α and IFN-γ(P < 0.001),and a significant increase in IL-10,IL-1β,and TNF-αR2(P <0.01,P < 0.001 and P < 0.001;respectively) in HCC patients.There was inverted correlation between IL-12 and IL-1β in HCC(r =-0.565,P < 0.01),with a strong correlation between p DCs(CD303+/CD40+) and NKs(CD56+/CD161+;r = 0.512,P < 0.05) as well as inactive m DCs(CD1 c+/HLA+) and inactive NK cells(CD56+/CD158+;r = 0.945,P < 0.001).CONCLUSION NKG2 D,CD40,IL-2 and IL-10 are important modulators in the development and progression of HCC. | Abdel-Rahman N Zekri Somaya El Deeb Abeer A Bahnassy Abeer M Badr Mona S Abdellateif Gamal Esmat Hosny Salama Marwa Mohanad Ahmed Esam El-dien Shimaa Rabah Assmaa Abd Elkader | 2018 | World Journal of Gastroenterology2018，24，11： | 6 |
| 19 | Predictors of long-term survival after pancreaticoduodenectomy for peri-ampullary adenocarcinoma: A retrospective study of 5-year survivors显示文摘Background: Pancreaticoduodenectomy(PD) is the standard curative treatment for periampullary tumors. The aim of this study is to report the incidence and predictors of long-term survival( ≥ 5 years) after PD. Methods: This study included patients who underwent PD for pathologically proven periampullary adenocarcinomas. Patients were divided into 2 groups: group(I) patients who survived less than 5 years and group(II) patients who survived ≥ 5 years. Results: There were 47(20.6%) long-term survivors( ≥ 5 years) among 228 patients underwent PD for periampullary adenocarcinoma. Patients with ampullary adenocarcinoma represented 31(66.0%) of the long-term survivors. Primary analysis showed that favourable factors for long-term survival include age < 60 years old, serum CEA < 5 ng/mL, serum CA 19-9 < 37 U/mL, non-cirrhotic liver, tumor size < 2 cm, site of primary tumor, postoperative pancreatic fistula, R0 resection, postoperative chemotherapy, and no recurrence. Multivariate analysis demonstrated that CA 19-9 < 37 U/mL [OR(95% CI) = 1.712(1.24 8–2.34 8), P = 0.001], smaller tumor size [OR(95% CI) = 1.335(1.032–1.726), P = 0.028] and R0 resection [OR(95% CI) = 3.098(2.095–4.582), P < 0.001] were independent factors for survival ≥ 5 years. The prognosis was best for ampullary adenocarcinoma, for which the median survival was 54 months and 5-year survival rate was 39.0%, and the poorest was pancreatic head adenocarcinoma, for which the median survival was 27 months and 5-year survival rate was 7%. Conclusions: The majority of long-term survivors after PD for periampullary adenocarcinoma are patients with ampullary tumor. CA 19-9 < 37 U/mL, smaller tumor size, and R0 resection were found to be independent factors for long-term survival ≥ 5 years. | Ayman El Nakeeb Mohamed El Sorogy Helmy Ezzat Rami Said Mohamed El Dosoky Mohamed Abd El Gawad Ahmed M Elsabagh Ehab El Hanafy | 2018 | Hepatobiliary & Pancreatic Diseases International2018，17，5： | 6 |
| 20 | Intraoperative endoscopic retrograde cholangiopancreatography: A useful tool in the hands of the hepatobiliary surgeon显示文摘AIM: To evaluate the efficacy of intraoperative endoscopic retrograde cholangio-pancreatography(ERCP) combined with laparoscopic cholecystectomy(LC) forpatients with gall bladder stones(GS) and common bile duct stones(CBDS).METHODS: Patients treated for GS with CBDS were included. LC and intraoperative transcystic cholangiogram(TCC) were performed in most of the cases. Intraoperative ERCP was done for cases with proven CBDS.RESULTS: Eighty patients who had GS with CBDS were included. LC was successful in all cases. Intraoperative TCC revealed passed CBD stones in 4 cases so intraoperative ERCP was performed only in 76 patients. Intraoperative ERCP showed dilated CBD with stones in 64 cases(84.2%) where removal of stones were successful; passed stones in 6 cases(7.9%); short lower end stricture with small stones present in two cases(2.6%) which were treated by removal of stones with stent insertion; long stricture lower 1/3 CBD in one case(1.3%) which was treated by open hepaticojejunostomy; and one case(1.3%) was proved to be ampullary carcinoma and whipple's operation was scheduled. CONCLUSION: The hepatobiliary surgeon should be trained on ERCP as the third hand to expand his field of therapeutic options. | Ayman El Nakeeb Ahmad M Sultan Emad Hamdy Ehab El Hanafy Ehab Atef Tarek Salah Ahmed A El Geidie Tharwat Kandil Mohamed El Shobari Gamal El Ebidy | 2015 | World Journal of Gastroenterology2015，21，2： | 6 |
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