维普中文期刊产品整合服务
708篇 您的检索式:作者名="AHME Z"
    题名 作者 年代 出处 被引量
1Advances in hepatocellular carcinoma: Nonalcoholic steatohepatitis-related hepatocellular carcinoma显示文摘An increase in the prevalence of obesity and diabetes mellitus has been associated with the rise in non-alcoholic fatty liver disease(NAFLD). Two-thirds of the obese and diabetic populations are estimated to develop NAFLD. Currently, NAFLD is the most common etiology for chronic liver disease globally. The clinical spectrum of NAFLD ranges from simple steatosis, an accumulation of fat greater than 5% of liver weight, to nonalcoholic steatohepatitis(NASH), a more aggressive form with necroinflammation and fibrosis. Among the patients who develop NASH, up to 20% may advance to cirrhosis and are at risk for complications of end-stage liver disease. One of the major complications observed in patients with NASH-related cirrhosis is hepatocellular carcinoma(HCC), which has emerged as the sixth most common cancer and second leading etiology of cancer-related deaths worldwide. The incidence of HCC in the United States alone has tripled over the last three decades. In addition, emerging data are suggesting that a small proportion of patients with NAFLD may be at higher risk for HCC in the absence of cirrhosis - implicating obesity and diabetes mellitus as potential risk factors for HCC.Fauzia Z Khan Ryan B Perumpail Robert J Wong Aijaz Ahmed 2015World Journal of Hepatology2015,7,18:10
2Direct-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 Castaeda Luis M Camacho Ahmed E Kholif Juan C Vázquez Chagoyán 2015Journal of Integrative Agriculture2015,14,3:7
3Phenotypic methods of greater accuracy to detect the mecA gene product for the recognition of MRSA in resource constraint settings显示文摘Objective:To evaluate the detection of methicillin resistant Staphylococcus aureus(MRSA) and analyze the performance of Mastalex MRSA(Mast,UK).Methods:Two hundred and ten Staphylococcus aureus(S.aureus) strains were isolated from different clinical samples and were tested for methicillin resistance by Oxacillin(1μg) and Cefoxitin(30μg) disc diffusion, oxacillin agar screen,and minimum inhibitory concentration of oxacillin and cefoxitin.S.aureus isolates were grown on the blood agar and mannitol salt agar with(2 mg/L) and without oxacillin for the analysis of Mastalex MRSA.Results:Out of 210 S.aureus strains tested,103 strains were detected as methicillin resistant by Cefoxitin disk diffusion,Cefoxitin minimal inhibitory concentration(MlC) and Mastalex MRSA test.Whereas oxacillin disc diffusion and oxacillin agar screen detected 91 and 97 MRSA respectively.The Cefoxitin MIC test performance was equivalent to Cefoxitin disc diffusion.103(100%) strains grown on blood agar without and with oxacillin,and 76(74%) and 93(91%) strains grown on mannitol salt agar without and with oxacillin shown positive agglutination with Mastalex MRSA test respectively.Conclusions:The cefoxitin disk diffusion/ Mastalex MRSA is very suitable for detection of MRSA and the tests can be an alternative to PCR for detection of MRSA in resource constraint settings.Mastalex test would be particularly useful when confirmation of resistance is urgently required.Rasheed MU Ahmed Z 2010Asian Pacific Journal of Tropical Medicine2010,3,9:6
4南方部分地区烟粉虱及其寄生蜂内共生菌Cardinium的检测及其系统发育关系显示文摘【目的】研究我国南方四个省份6个烟粉虱Bemisia tabaci种群和2个蚜小蜂种群内共生菌Cardinium的感染率及其系统发育关系。【方法】利用PCR技术与DNA测序技术检测来自广州、肇庆、南宁、昆明、厦门烟粉虱种群以及广州2个蚜小蜂种群内Cardinium的感染情况,通过基于mtCOIDNA序列和16SrRNA序列建立烟粉虱和Cardinium系统进化树,分析烟粉虱、寄生蜂和共生菌Cardinium的协同进化关系。【结果】广州的Asialll与Asiall7烟粉虱种群、肇庆与南宁的MEAMl烟粉虱种群、昆明与厦门的Mediterranean烟粉虱种群以及广州的丽蚜小蜂Enearsia formosa、双斑蚜小蜂Encarsia bimaculata种群体内都有Cardinium的感染,且以Mediterranean与土著的Asialll、Asiall7感染率较高(65.2%~92.5%),寄生蜂体内的感染率较低(16.7%~18.6%)。通过进化树对比分析发现,Cardinium与烟粉虱寄主之间无协同进化现象,但是Cardinium在烟粉虱不同地理种群之间,烟粉虱与寄生蜂之问的同源性超过98%。【结论】Cardinium在两种寄主昆虫之间进行相互感染与传播的概率较大,寄生蜂可能是Cardinium在不同烟粉虱种群之间水平传播的桥梁之一。尹祥杰 孙秀新 Muhammad Z Ahmed 任顺祥 邱宝利 2015应用昆虫学报2015,52,4:5
5Effects of exogenous enzymes, Lactobacillus acidophilus or their combination on feed performance response and carcass characteristics of rabbits fed sugarcane bagasse显示文摘The aim of this study was to evaluate the effect of Lactobacillus acidophilus(LAC), exogenous enzymes of ZAD(exogenous enzyme preparation) or their combination on feed conversion, and dressing of rabbits fed different treatments of sugarcane bagasse(SCB). Five rations were allotted randomly to five groups of New-Zealand White(NZW) rabbits(n=10) with initial live body weight of(838±42.4) g and 5 weeks of age. Rabbits were fed on diets with different sources of fiber as follows,(i) a control diet composed of 100% berseem hay and 0% SCB,(ii) 50% berseem hay and 50% untreated SCB(USCB),(iii) 50% berseem hay and 50% SCB treated with L. acidophilus(LAC),(iv) 50% berseem hay and 50% SCB treated with ZAD(ZAD), and(v) 50% berseem hay and 50% SCB treated with a combination of LAC+ZAD(LZ). Treatments of SCB with L. acidophilus, ZAD and LAC+ZAD had the highest feed conversion ratio than both USCB and control. The dressing percentage of rabbits that fed the LAC and LZ diets was higher(P<0.05) compared with that in the other groups. Performance index(PI) for LAC group was improved(P<0.05) compared to that for the other groups; however, PI for USCB group was the lowest(P<0.05). It could be concluded that treating SCB with L. acidophilus, exogenous enzymes of ZAD or their combination improved feed conversion and performance with more positive effects with L. acidophilus than the other treatments.Nahla A Abdel-Aziz Mounir El-Adawy Maria A Mariezcurrena-Berasain Abdelfattah Z M Salem Jaime Olivares-Pérez Ahmed E Kholif Borhami E Borhami 2015Journal of Integrative Agriculture2015,14,3:5
6Biological treatments as a mean to improve feed utilization in agriculture animals——An overview显示文摘As a result of agriculture practices, million tons of agriculture are produced as a secondary or by-products; however, with low nutritive values. Many methods are applied to improve the nutritive value and increase its utilization in ruminant's nutrition. The biological treatments are the most common with more safe-treated products. In most cases, the biological treatments are paralleled with decreased crude fiber and fiber fractions content with increased crude protein content. Direct-fed microbial and exogenous enzymes to animal are other ways of biological methods for improving nutritive value of feeds. Here in this review, we will try to cover the biological treatments of by-products from different sides view with different types of animals and different animal end-products.Nahla A Abdel-Aziz Abdelfattah Z M Salem Mounir M El-Adawy Luis M Camacho Ahmed E Kholif Mona M Y Elghandour Borhami E Borhami 2015Journal of Integrative Agriculture2015,14,3:4
7Risk for emerging bipolar disorder, variants, and symptoms in children with attention deficit hyperactivity disorder, now grown up显示文摘AIM: To determine the prevalence of bipolar disorder(BD) and sub-threshold symptoms in children with attention deficit hyperactivity disorder(ADHD) through 14 years' follow-up, when participants were between 21-24 years old.METHODS: First, we examined rates of BD type Ⅰ?and Ⅱ diagnoses in youth participating in the NIMH-funded Multimodal Treatment Study of ADHD(MTA). We used the diagnostic interview schedule for children(DISC), administered to both parents(DISC-P) and youth(DISCY). We compared the MTA study subjects with ADHD(n = 579) to a local normative comparison group(LNCG, n = 289) at 4 different assessment points: 6, 8, 12, and 14 years of follow-ups. To evaluate the bipolar variants, we compared total symptom counts(TSC) of DSM manic and hypomanic symptoms that were generated by DISC in ADHD and LNCG subjects. Then we sub-divided the TSC into pathognomonic manic(PM) and non-specific manic(NSM) symptoms. We compared the PM and NSM in ADHD and LNCG at each assessment point and over time. We also evaluated the irritability as category A2 manic symptom in both groups and over time. Finally, we studied the irritability symptom in correlation with PM and NSM in ADHD and LNCG subjects.RESULTS: DISC-generated BD diagnosis did not differ significantly in rates between ADHD(1.89%) and LNCG 1.38%). Interestingly, no participant met BD diagnosis more than once in the 4 assessment points in 14 years. However, on the symptom level, ADHD subjects reported significantly higher mean TSC scores: ADHD 3.0; LNCG 1.7; P < 0.001. ADHD status was associated with higher mean NSM: ADHD 2.0 vs LNCG 1.1; P < 0.0001. Also, ADHD subjects had higher PM symptoms than LNCG, with PM means over all time points of 1.3 ADHD; 0.9 LNCG; P = 0.0001. Examining both NSM and PM, ADHD status associated with greater NSM than PM. However, Over 14 years, the NSM symptoms declined and changed to PM over time(df 3, 2523; F = 20.1; P < 0.0001). Finally, Irritability(BD DSM criterion-A2) rates were significantly higher in ADHD than LNCG(χ2 = 122.2, P < 0.0001), but irritability was associated more strongly with NSM than PM(df 3, 2538; F = 43.2; P < 0.0001).CONCLUSION: Individuals with ADHD do not appear to be at significantly greater risk for developing BD, but do show higher rates of BD symptoms, especially NSM. The greater linkage of irritability to NSM than to PM suggests caution when making BD diagnoses based on irritability alone as one of 2(A-level) symptoms for BD diagnosis, particularly in view of its frequent presentation with other psychopathologies.Ahmed Z Elmaadawi Peter S Jensen L Eugene Arnold Brooke SG Molina Lily Hechtman Howard B Abikoff Stephen P Hinshaw Jeffrey H Newcorn Laurence Lee Greenhill James M Swanson Cathryn A Galanter 2015World Journal of Psychiatry2015,5,4:3
8桔小实蝇中国与马来西亚种群间杂交:融合性、生物学及检疫挑战(英文)显示文摘桔小实蝇是重要的检疫性害虫,可对水果产业造成巨大经济损失。本研究首先采用微卫星标记比较桔小实蝇不同地理种群间的遗传差异性,然后通过室内种间杂交试验,研究了两个相异地理种群(此前称谓的来自中国的桔小实蝇和来自马来西亚的木瓜实蝇)之间杂交后代在繁殖力、孵化率、发育历期、产卵管长度以及抗逆性等方面的适应性,结果表明桔小实蝇中国和马来西亚种群之间的遗传关系极为相近,不存在生殖隔离,但杂交后代在繁殖力、孵化率、幼虫发育情况、高蛹期抗逆性等方面均显著高于其亲本种群,产卵管长度则介于亲本的马来西亚种群和中国种群之间。上述杂交种的适应性特征分析表明,杂交后代可能具有比亲本更强的传播潜力,因此,本研究结果对于桔小实蝇相异地理种群的检疫防控提出了新的挑战。张灿 Muhammad Z Ahmed 马骏 武目涛 何日荣 梁帆 赵菊鹏 林莉 胡学难 Catharine Mannion Muhammad Ashfaq 2018环境昆虫学报2018,40,3:2
9Synthesis of manganese ferrite from non-standard raw materials using ceramic technique 显示文摘AHMED Y M Z 2010Ceramics International2010,36,3:1
10Effect of ropy and capsular exopolysaccharides producing strain of Lactobacillus plantarum 162RM on characteristics and functionality of fermented milk and soft Kareish type cheese显示文摘Franoois Z N Ahmed N E Félicité M T 0,,:1
11Purification and partial characterization of milk-clotting enzyme extracted from glutinous rice wine mash liquor显示文摘WANG Y CHENG Q AHMED Z 2009Korean Journal of Chemical Engineering2009,26,5:1
12Management of flail chest injury:internal fixation versus endotracheal intubation and ventilation显示文摘Ahmed Z Mohyuddin Z 1995J Thorac Cardiovasc Surg1995,110,6:1
13Purification and partial characterization of milk-clotting enzyme extracted from glutinous rice wine mash liquor 显示文摘WANG Y CHENG Q AHMED Z ct al 2009Korean J Chem Eng2009,26,5:1
14Neurotrophic factor synergy is required for neuronal survival and disinhibited axon regeneration after CNS injury 显示文摘Logan A Ahmed Z Baird A 2006Brain2006,129,2:1
15Rheology characterization of polymer drilling foams using a novel apparatus显示文摘Zhu Chen Ramadan M Ahmed Stefan Z Miska 0,,:1
16Host plants and natural enemies of Bemisia tabaci (Homoptera:Aleyrodidae) in China显示文摘LiS J Xue X Ahmed M Z Ren S X Du Y Z Wu J H Cuthbertson A G S and Qiu B L 0,,:1
17Selective separation of mercury(Ⅱ)using a synthetic resin containing amine and mercaptan as chelating groups显示文摘Asem A Atia Ahmed M Donia Khalid Z Elwakeel 2005Reactive&Functional Polymers2005,65,3:1
18Caesarean or vaginal delivery for preterm very-low'birth weight显示文摘Hapue KN Hayes AM Ahmed Z eta| 2012Fetal Diagn Ther2012,31,1:1
19The Effect of Current Density on Properties of Electrodeposited Nanocrystalline Nickel显示文摘EBRAHIMI F AHMED Z 2003Journal of Applied Electrochemistry2003,33,:1
20Radiofrequency ablation: effect of surrounding tissue composition on coagulation necrosis in a canine tumor model显示文摘Ahmed M Liu Z Afzal KS 2004Radiology2004,230,3:1
返回顶部 每页显示:
共36页 首页 上一页 第1页 下一页 末页 /36 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费