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| 1 | Progression of diethylnitrosamine-induced hepatic carcinogenesis in carnitine-depleted rats显示文摘AIM:To investigate whether carnitine deficiency is a risk factor during the development of diethylnitrosamine (DENA)-induced hepatic carcinogenesis. METHODS:A total of 60 male Wistar albino rats were divided into six groups with 10 animals in each group.Rats in group 1(control group)received a single intraperitoneal(i.p.)injection of normal saline. Animals in group 2(carnitine-supplemented group) were given L-carnitine(200 mg/kg per day)in drinking water for 8 wk.Animals in group 3(carnitine-depleted group)were given D-carnitine(200 mg/kg per day)and mildronate(200 mg/kg per day)in drinking water for 8 wk.Rats in group 4(DENA group)were injected with a single dose of DENA(200 mg/kg,i.p.)and 2 wk later received a single dose of carbon tetrachloride(2 mL/kg) by gavage as 1:1 dilution in corn oil.Animals in group 5(DENA-carnitine depleted group)received the same treatment as group 3 and group 4.Rats in group 6 (DENA-carnitine supplemented group)received the same treatment as group 2 and group 4.RESULTS:Administration of DENA resulted in a significant increase in alanine transaminase(ALT), gamma-glutamyl transferase(G-GT),alkaline phosphatase(ALP),total bilirubin,thiobarbituric acid reactive substances(TBARS)and total nitrate/ nitrite(NOx)and a significant decrease in reduced glutathione(GSH),glutathione peroxidase(GSHPx), catalase(CAT)and total carnitine content in liver tissues.In the carnitine-depleted rat model,DENA induced a dramatic increase in serum ALT,G-GT,ALP and total bilirubin,as well as a progressive reduction in total carnitine content in liver tissues.Interestingly, L-carnitine supplementation resulted in a complete reversal of the increase in liver enzymes,TBARS and NOx,and a decrease in total carnitine,GSH,GSHPx, and CAT induced by DENA,compared with the control values.Histopathological examination of liver tissues confirmed the biochemical data,where L-carnitine prevented DENA-induced hepatic carcinogenesis while D-carnitine-mildronate aggravated DENA-induced hepatic damage. CONCLUSION:Data from this study suggest for the first time that:(1)carnitine deficiency is a risk factor and should be viewed as a mechanism in DENA- induced hepatic carcinogenesis;(2)oxidative stress plays an important role but is not the only cause of DENA-induced hepatic carcinogenesis;and(3) long-term L-carnitine supplementation prevents the development of DENA-induced liver cancer. | Salim S Al-Rejaie Abdulaziz M Aleisa Abdulaziz A Al-Yahya Saleh A Bakheet Abdulmalik Alsheikh Amal G Fatani Othman A Al-Shabanah Mohamed M Sayed-Ahmed | 2009 | World Journal of Gastroenterology2009，15，11： | 4 |
| 2 | Cytokine profile in Egyptian hepatitis C virus genotype-4 in relation to liver disease progression显示文摘AIM: To observe the imbalance between T helper cell Th1 and Th2 cytokines in several chronic hepatitis disease at different stages of disease progression.METHODS: We measured the cytokine levels of Th1 (IL-2 and IL-2R), Th2 (IL-10) and the pro-inflammatory cytokines (IL-6 and IL-6R and TNF and TNF-RⅠ and Ⅱ)by the ELISA technique in the sera of 33 hepatocellular carcinoma (HCC) patients and 20 chronic liver disease (CLD) patients. In addition, 20 asymptomatic hepatitis C virus carriers and 20 healthy subjects negative for hepatitis C virus(HCV) markers served as controls.RESULTS: Anti-HCV antibodies were found to be positive in 94% of HCC cases and 75% of CLD cases.On the other hand, HCV viremia was detected using RTPCR in 67% of HCC cases and 65% of CLD cases. HBsAg was positive in 9% of HCC cases and 30% of CLD cases.Also bilharzial-Ab was positive in 55% of HCC cases,65% of CLD cases and in 70% of asymptomatic carriers (ASC). HCC patients had significantly higher values of IL-2R, TNF-RⅡ (P<0.001), and TNF-RⅠ (P>0.05), but lower TNFα (P<0.001) and IL-6 (P = 0.032) in comparison to ASC. But, in comparison to non-cancer controls, HCC patients had higher values of IL-2R, IL-6R, TNF-RⅠ and TNF-RⅡ, but lower TNF-α (P<0.001). CLD patients had higher IL-2R, TNF-RⅠ, and TNF-RⅡ (P<0.001) than ASC. But, in comparison to non-cancer controls, CLD patients had higher values of IL-2R, TNF-RⅠ and TNF-RⅡ, but lower TNF-α (P<0.001). IL-10 was higher (though not significantly) in HCC and CLD patients than in symptomatic carriers and non-cancer controls.CONCLUSION: Liver disease progression from CLD to HCC due to HCV genotype-4 infection is associated with an imbalance between Th1 and Th2 cytokines. IL-2R,TNF-RⅠ, and TNF-RⅡ could be used as potential markers. | Abdel-Rahman N Zekri Mohammed S El-Din Ashour Ahmed Hassan Hanaa M Alam El-Din Amal MR El-Shehaby Maha A Abu-Shady | 2005 | World Journal of Gastroenterology2005，11，42： | 4 |
| 3 | Vitamin D status and viral response to therapy in hepatitis C infected children显示文摘AIM: To study the frequency of vitamin D deficiency in patients with hepatitis C virus(HCV) infection and to evaluate the role of vitamin D supplementation in improving antiviral therapy.METHODS: Sixty-six children aged from 7-14 years(mean ± SD, 11.17 ± 2.293) diagnosed with HCV infection were matched to 28 healthy controls. Serum levels of 25(OH) D3, calcium, phosphorus, alkaline phosphatase and plasma level of parathormone were measured. Quantitative PCR for HCV was performed Bone density was determined by dual energy X-ray absorptiometry. All cases received conventional therapy, and only 33 patients received vitamin D supplementation.RESULTS: Children with HCV showed significantly increased levels of HCV RNA(P < 0.001), parathormone(P < 0.01) and decreased vitamin D levels(P < 0.05)(33.3% deficient and 43.3% insufficient) compared with controls. Abnormal bone status(Z score-1.98 ± 0.75) was found in ribs, L-spine, pelvis and total body. Cases treated with vitamin D showed significant higher early(P < 0.04) and sustained(P < 0.05) virological response. There was a high frequency of vitamin D deficiency among the Egyptian HCV children, with significant decrease in bone density. The vitamin D level should be assessed before the start of antiviral treatment with the correction of any detected deficiency. CONCLUSION: Adding vitamin D to conventional Peg/RBV therapy significantly improved the virological response and helped to prevent the risk of emerging bone fragility. | Azza A Eltayeb Madleen Adel A Abdou Amal M Abdel-aal Mostafa H Othman | 2015 | World Journal of Gastroenterology2015，21，4： | 3 |
| 4 | Effectiveness of hepatitis B virus vaccination program in Egypt:Multicenter national project显示文摘AIM:To assess the effectiveness of hepatitis B virus(HBV) vaccination program among fully vaccinated children.METHODS:A national community based crosssectional study was carried out in 6 governorates representing Egypt. A total of 3600 children aged from 9 mo to 16 years who were fully vaccinated with HBV vaccine during infancy were recruited. Face to face interviews were carried out and sera were evaluated for hepatitis B surface antigen(HBsA g),anti-HBV core antibodies(total) and quantitative detection of hepatitis B surface antibody using enzyme linked immunoassays techniques. Samples positive to HBs Ag/anti-HBV core antibodies were subjected to quantitative HBV-DNA detection by real time polymerase chain reaction with 3.8 IU/L detection limit. RESULTS:Sero-protection was detected among 2059 children(57.2%) with geometric mean titers 75.4 ± 3.6 IU/L compared to 3.1 ± 2.1 IU/L among nonseroprotected children. Multivariate logistic analysis revealed that older age and female gender were the significant predicting variables for having non seroprotective level,with adjusted odds ratio 3.3,9.1and 14.2 among children aged 5 to < 10,10 to < 15 and ≥ 15 years respectively compared to those < 5 years and 1.1 among girls compared to boys with P < 0.01. HBs Ag was positive in 0.11% and breakthrough infection was 0.36% and 0.39% depending on positivity of anti-HBc and DNA detection respectively. The prevalence of HBV infection was significantly higher among children aged ≥ 7 years(0.59%) compared to 0.07% among younger children with odds ratio equal to 8.4(95%CI:1.1-64.2) and P < 0.01.The prevalence was higher among girls(0.48%) than boys(0.29%) with P > 0.05. C ON C LU S I ON :T he E gy pt ian c ompuls or y H B V vaccination program provides adequate protection. Occult HBV infection exists among apparently healthy vaccinated children. Adherence to infection control measures is mandatory. | Iman I Salama Samia M Sami Zeinab Nabil Ahmed Said Manal H El-Sayed Lobna A El Etreby Thanaa M Rabah Dalia M Elmosalami Amany T Abdel Hamid Somaia I Salama Aida M Abdel Mohsen Hanaa M Emam Safaa M Elserougy Amal I Hassanain Naglaa F Abd Alhalim Fatma A Shaaban Samia A Hemeda Nihad A Ibrahim Ammal M Metwally | 2015 | World Journal of Hepatology2015，7，22： | 2 |
| 5 | Formation of fluid heavy oil-in-water emulsions for pipeline transportationt显示文摘 | Nehal S A Amal M N Nael N Z | 1999 | Fuel1999，78，59： | 1 |
| 6 | Evaluation of Some Starch Derivatives Containing Amide Groups as Flocculants显示文摘 | KHALIL M I AMAL A ALY | 2001 | Starch2001，53，7： | 1 |
| 7 | Oral colon targeted delivery systems for treatment of inflammatory bowel diseases: Synthesis, in vitro and in vivo assessment 显示文摘 | Amal H El-Kamel Alaa A M Abdel-Aziz Amal J Fatani | 2008 | Int J Pharm2008，358，12： | 1 |
| 8 | Carbon nanotubereinforced aluminium strips显示文摘 | Amal M K Esawi Mostafa A El Borady | 2008 | Compos Sci Techn2008，68，2： | 1 |
| 9 | Development of biochemical markers for salt stress tolerance in cucumber plants显示文摘 | EL-BAZ F K AMAL A M AMINA A A | 2003 | Pak J Biol Sci2003，6，： | 1 |
| 10 | Physicochemical Properties of Dietary fiber gels produced from some cereal wastes显示文摘 | Rasmy Nagwa M H AI-Sayed Hanan M A E1-Hofi Amal A | 2008 | Cairo2008，53，1： | 1 |
| 11 | 显示文摘 | Amalou F Gijs M A M | 2002 | Appl Phys Lett2002，81，： | 1 |
| 12 | 查看详情显示文摘 | Muller A J Hernandez Z H Amal M L Sanchez J J | | 0，，04： | 1 |
| 13 | GAD Effect of pumpkin-seed oil on the level of free radical scav-engers induced during adjuvant-arthritis in rays显示文摘 | Fahim amal A Abd-el Fattah azza M Agha | 2000 | Pharmaco-logical Research2000，，41： | 1 |
| 14 | Antioxidant and Antibacterial Activities of Crude Extracts and Essential Oils ofSyzygium cumini Leaves显示文摘 | AMAL A M SAMI I A FAROUK K E1 - Baz | 2013 | PLOS ONE2013，8，4： | 1 |
| 15 | Giant magnetoimpedance of chemically thinned and polished magnetic amorphous ribbons显示文摘 | Amalou F Gijis M A M | | 0，，07： | 1 |
| 16 | Highly visible light active Ag@ TiO2 nanocomposites synthesized using an- electrochemically active biofilm : Anovel biogenic approach 显示文摘 | Mansoob M Khan Sajid A Ansari Ikhlasul M Amal | 2013 | Nanoscale2013，5，10： | 1 |
| 17 | How much do the Ar- ab females know about osteoporosis? The scope and the sources of knowledge显示文摘 | Haider M A1 Attia Amal A | 2008 | Clin Rheumatol2008，27，9： | 1 |
| 18 | An outbreak of Streptococcus agalactiae infection in cage-cultured golden pompano, Trachinotus blochii (Lacépède), in Malaysia显示文摘 | Amal M Zamri-Saad M Iftikhar A | 2012 | J Fish Dis2012，35，84： | 1 |
| 19 | 显示文摘 | Amalou F Gijs M A M | 2004 | Appl Phys2004，95，： | 1 |
| 20 | Formation of Fluid Heavy oil-in-water Emnlsions for Pipeline Transportatioin显示文摘 | Nehal S A Amal M N Nael N Z | 1999 | Fuel1999，78，5： | 1 |
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