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| 1 | Changes in enzymes activity, substrate utilization pattern and diversity of soil microbial communities under cadmium pollution显示文摘Heavy metal pollution has received increasing attention in recent years mainly because of the public awareness of environmental issues. In this study we have evaluated the effect of cadmium(Cd) on enzymes activity, substrate utilization pattern and diversity of microbial communities in soil spiked with 0, 20, 40, 60, 80, and 100 mg/kg Cd, during 60 d of incubation at 25℃. Enzyme activities determined at 0, 15, 30, 45, and 60 d after heavy metal application(DAA) showed marked declines for various Cd treatments, and up to 60 DAA, 100 mg/kg Cd resulted in 50.1%, 47.4%, and 39.8% decreases in soil urease, acid phosphatase and dehydrogenase activities, respectively to control. At 60 DAA, substrate utilization pattern of soil microbial communities determined by inoculating Biolog ECO plates indicated that Cd addition had markedly inhibited the functional activity of soil microbial communities and multivariate analysis of sole carbon source utilization showed significantly different utilization patterns for 80 and 100 mg/kg Cd treatments. The structural diversity of soil microbial communities assessed by PCR-DGGE method at 60 DAA, illustrated that DGGE patterns in soil simplified with increasing Cd concentration, and clustering of DGGE profiles for various Cd treatments revealed that they had more than 50% difference with that of control. | Muhammad Akmal WANG Hai-zhen WU Jian-jun XU Jian-ming XU De-fu | 2005 | Journal of Environmental Sciences2005，17，5： | 10 |
| 2 | Profile of hepatocyte apoptosis and bile lakes before and after bile duct decompression in severe obstructive jaundice patients显示文摘BACKGROUND:Excessive hepatocyte apoptosis and bile lakes in severe obstructive jaundice might impair liver functions.Although decompression of the bile duct has been reported to improve liver functions in animal studies,the mechanism of obstruction differs from that in humans.This study aimed to determine the profiles of hepatocyte apoptosis and bile lakes following bile duct decompression in patients with severe obstructive jaundice in the clinical setting.METHODS:We conducted a 'before and after study' on severe obstructive jaundice patients as a model of inhibition of the excessive process by bile duct decompression.Specimens of liver biopsies were taken before and after decompression of the bile duct and then stained by terminal deoxynucleotide transferase-mediated dUTP nick end-labeling(TUNEL) to identify hepatocyte apoptosis and by hematoxilin-eosin(HE) to identify bile lakes.All measurements were independently done by 2 observers.RESULTS:Twenty-one severe obstructive jaundice patients were included.In all patients,excessive hepatocyte apoptosis and bile lakes were apparent.After decompression,the hepatocyte apoptosis index decreased from 53.1(SD 105) to 11.7(SD 13.6)(P<0.05),and the bile lakes from 23.6(SD 14.8) to 10.9(SD 6.9)(P<0.05).CONCLUSION:Bile duct decompression improves hepatocyte apoptosis and bile lakes in cases of severe obstructive jaundice,similar to the findings in animal studies. | Toar JM Lalisang Raden Sjamsuhidajat Nurjati C Siregar Akmal Taher | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，5： | 9 |
| 3 | Coronary CT angiography:Diagnostic value and clinical challenges显示文摘Coronary computed tomography(CT)angiography has been increasingly used in the diagnosis of coronary artery disease due to improved spatial and temporal resolution with high diagnostic value being reported when compared to invasive coronary angiography.Diagnostic performance of coronary CT angiography has been significantly improved with the technological developments in multislice CT scanners from the early generation of 4-slice CT to the latest 320-slice CT scanners.Despite the promising diagnostic value,coronary CT angiography is still limited in some areas,such as inferior temporal resolution,motion-related artifacts and high false positive results due to severe calcification.The aim of this review is to present an overview of the technical developments of multislice CT and diagnostic value of coronary CT angiography in coronary artery disease based on different generations of multislice CT scanners.Prognostic value of coronary CT angiography in coronary artery disease is also discussed,while limitations and challenges of coronary CT angiography are highlighted. | Akmal Sabarudin Zhonghua Sun | 2013 | World Journal of Cardiology2013，5，12： | 7 |
| 4 | Radiation dose measurements in coronary CT angiography显示文摘Coronary computed tomography(CT)angiography is associated with high radiation dose and this has raised serious concerns in the literature.Awareness of various parameters for dose estimates and measurements of coronary CT angiography plays an important role in increasing our understanding of the radiation exposure to patients,thus,contributing to the implementation of dose-saving strategies.This article provides an overview of the radiation dose quantity and its measurement during coronary CT angiography procedures. | Akmal Sabarudin Zhonghua Sun | 2013 | World Journal of Cardiology2013，5，12： | 3 |
| 5 | Systematic study of(MoTa)_(x)NbTiZr medium-and high-entropy alloys for biomedical implants-In vivo biocompatibility examination显示文摘In this study,the application of medium-and high-entropy(Mo Ta)_(x)Nb Ti Zr alloys in biomedical implants was systematically analyzed.The alloy with the best combination of mechanical properties was selected and characterized for in vitro and in vivo response for the first time to examine its biomedical properties.A logarithmic increase in the hardness and the yield strength was observed as a function of the Mo and Ta content.Alloys with up to 0.4 mol fraction of Mo and Ta showed a plastic strain of more than 30%under compression.The nanoindentation results showed that the addition of Mo and Ta increased the elastic modulus of the system linearly.It was surmised that the addition of Ta and Mo above a critical concentration(mole fraction=0.4)was unfavorable from a biomedical perspective as it increased the brittleness and elastic modulus and decreased the ductility of the system.Therefore,the(Mo Ta)_(0.2)Nb Ti Zr alloy is a potential structural material for biomedical implants because of its excellent strength and ductility.The developed alloy was investigated for its corrosion properties and compared with commercial biomedical alloys.Furthermore,the biocompatibility of the alloy was examined using an in vivo examination.The alloy was implanted in the skeletal muscles of mice for four weeks and the histology of the surrounding tissue was studied.The alloy exhibited strong passive behavior in a phosphate buffer solution and non-toxic soft tissue response. | Muhammad Akmal Ahtesham Hussain Muhammad Afzal Young Ik Lee Ho Jin Ryu | 2021 | Journal of Materials Science & Technology2021，，19： | 2 |
| 6 | Ⅲ型分泌系统2转录因子YqeI对禽致病性大肠杆菌生物被膜调控机制的研究显示文摘生物被膜是导致细菌产生耐药性的主要原因之一,本文通过探究Ⅲ型分泌系统2(ETT2)转录调节因子YqeI对禽致病性大肠杆菌生物被膜形成的影响及其影响机制,为探究ETT2对禽致病性大肠杆菌致病机制的影响提供研究基础。利用Red同源重组的方法构建yqeI基因缺失株,并通过检测野生株与缺失株生物被膜形成能力、结合转录组学测序及荧光定量检测生物被膜基因表达量等,探究转录调节因子YqeI对禽致病性大肠杆菌生物被膜形成能力的影响。结果显示成功构建了yqeI基因缺失株,且yqeI的缺失并不影响生长曲线,但生物被膜形成能力显著下降,且相关生物被膜基因转录量显著下调。禽致病性大肠杆菌ETT2转录调节因子YqeI显著影响了禽致病性大肠杆菌生物被膜形成能力,为从ETT2及yqeI的角度发掘潜在的调控网络提供依据。 | 肖亚婷 傅丹丹 MUHAMMAD AKMAL RAHEEM 薛媚 谷一 涂健 宋祥军 邵颖 祁克宗 | 2019 | 畜牧兽医学报2019，50，12： | 2 |
| 7 | 禽致病性大肠杆菌ETT2转录因子eivF缺失株的生物学特性及转录组学分析显示文摘【目的】构建禽致病性大肠杆菌(APEC)Ⅲ型分泌系统2(ETT2)转录因子eivF缺失株,并对其进行生物学特性及转录组学分析,探究转录因子eivF基因在APEC致病过程中的作用,为后期深入研究ETT2致病机制奠定基础。【方法】利用Red同源重组技术构建APEC ETT2转录因子eivF基因缺失的APEC AE81△eivF株及其回复株AE81 C-eivF,通过运动性、生物被膜形成等试验分析eivF对APEC生物学功能的影响;并利用转录组学方法分析eivF在转录调控网络中对细菌鞭毛和生物被膜等相关因子的转录调控作用。【结果】成功构建了APEC eivF基因缺失株AE81△eivF和回复株AE81 C-eivF;生物学结果表明,与野生株AE81相比,缺失株AE81△eivF运动能力降低,生物被膜形成褶皱堆砌且厚度增大,空间结构呈立体、多层次状,并形成类似于三维塔状结构的突起,回复株AE81 C-eivF运动能力和生物被膜形成能力基本恢复;与野生株AE81相比,缺失株AE81△eivF有576个基因差异表达,且鞭毛和生物被膜等相关基因在转录水平上均发生显著变化。【结论】ETT2的转录因子eivF参与调控APEC的生物表型变化,其可能通过调控鞭毛、生物被膜相关基因而调控APEC致病过程。 | 傅丹丹 肖亚婷 薛媚 Muhammad Akmal Raheem 冯寒霜 涂健 宋祥军 邵颖 祁克宗 | 2020 | 西北农林科技大学学报(自然科学版)2020，48，8： | 2 |
| 8 | Efficacy and tolerability of vardenafil in Asian men with erectile dysfunction显示文摘瞄准:评估功效和 vardenafil 的 toler 能力,一个 phosphodiesterase type-5 (PDE-5 ) 禁止者,在有可勃起的机能障碍(编辑) 的亚洲种族的人。方法:在这未来,双窗帘,多民族的学习,亚洲人被使随机化收到 vardenafil (10 mg ) 或安慰剂(4:1 比率) 12 个星期。主要功效变量是可勃起的功能的国际索引可勃起的功能领域(IIEF-EF ) ,和性相遇侧面(9 月) 与穿入和交际结束有关询问。重要吝啬的改进在所有三项措施被要求显示出 vardenafil 处理的积极好处。第二等的功效变量在勃起改进上包括了全球评价问题(GAQ ) 。结果:最少平方的吝啬的基线 IIEF-EF 领域分数(vardenafil 14.6,安慰剂 13.4 ) 与在 12 个星期以后的中等编辑一致, vardenafil 处理与安慰剂相比在 IIEF-EF 领域分数从基线与重要增加被联系(22.4 对 14.3;P <
0.001 ) 。Vardenafil 在吝啬的成功为 SEP-2 评估的最少的广场(LS ) 从基线与重要改进被联系(vardenafil 82.2 对安慰剂 43.6;P <
0.001 ) 并且 SEP-3 (vardenafil 66.1 对安慰剂 24.0;P <
0.001 ) 。积极 GAQ 回答被 81.8% vardenafil 接受者对 24.3% 安慰剂接受者报导。不利事件被 25.4% vardenafil 组,报导温和、短暂的多数。结论:Vardenafil (10 mg ) 是为在亚洲男人的中等编辑的一个高度有效、容忍得好的处理。这些结果增加在耐心的人口的一个范围为编辑的治疗表明 vardenafil 的安全和功效的数据的增加的数量。 | Hui Meng Tan Chong Min Chin Chong Beng Chua Edsal Gatchalian Apichat Kongkanand Clarence Lei Chang Moh Foo Cheong Ng Krisada Ratana-Olarn Dennis Serrano Akmal Taher Ismail Tambi Anupan Tantiwong Michael Wong Yuet Chen Wai-Chun Yip | 2008 | Asian Journal of Andrology2008，10，3： | 2 |
| 9 | Coronary CT angiography:Beyond morphological stenosis analysis显示文摘Rapid technological developments in computed tomography(CT)imaging technique have made coronary CT angiography an attractive imaging tool in the detection of coronary artery disease.Despite visualization of excellent anatomical details of the coronary lumen changes,coronary CT angiography does not provide hemodynamic changes caused by presence of plaques.Computational fluid dynamics(CFD)is a widely used method in the mechanical engineering field to solve complex problems through analysing fluid flow,heat transfer and associated phenomena by using computer simulations.In recent years,CFD is increasingly used in biomedical research due to high performance hardware and software.CFD techniques have been used to study cardiovascular hemodynamics through simulation tools to assist in predicting the behaviour of circulatory blood flow inside the human body.Blood flow plays a key role in the localization and progression of coronary artery disease.CFD simulation based on 3D lumina reconstructions can be used to analyse the local flow fields and flow profiling due to changes of vascular geometry,thus,identifying risk factors for development of coronary artery disease.The purpose of this article is to provide an overview of the coronary CT-derived CFD applications in coronary artery disease. | Akmal Sabarudin Zhonghua Sun | 2013 | World Journal of Cardiology2013，5，12： | 2 |
| 10 | Coronary CT angiography:Dose reduction strategies显示文摘With the introduction of 64- and post-64 slice computed tomography(CT)technology,coronary CT angiography has been increasingly used as a less invasive modality for the diagnosis of coronary artery disease.Despite its high diagnostic value and promising results compared to invasive coronary angiography,coronary CT angiography is associated with high radiation dose,leading to potential risk of radiation-induced cancer.A variety of dose-reduction strategies have been reported recently to reduce radiation dose with effective outcomes having been achieved.This article presents an overview of the various methods currently used for radiation dose reduction. | Akmal Sabarudin Zhonghua Sun | 2013 | World Journal of Cardiology2013，5，12： | 2 |
| 11 | Insulin-like growth factor Ⅱ and insulin-like growth factor binding protein Ⅱ expression in hepatoblastoma显示文摘 | Akmal SN Yun K Higami Y | 1995 | Hum Pathol1995，26，3： | 1 |
| 12 | Influence of recycled concrete aggregates on strength properties of concrete显示文摘 | Sami W. Tabsh Akmal S. Abdelfatah | 2008 | Construction and Building Materials2008，，2： | 1 |
| 13 | Objects, XML and databases 显示文摘 | Akmal B C | 2002 | Information and Software Technology2002，44，4： | 1 |
| 14 | Affective commitment in industrial customer-supplier relations: a psychological contract approach显示文摘 | Mikael L?vblad Akmal S. Hyder Lars L?nnstedt | 2012 | Journal of Business & Industrial Marketing2012，，4： | 1 |
| 15 | Effect of nicotine on spinal disc cells: a cellular mechanism for disc degeneration 显示文摘 | Akmal M Kesani A Anand B | 2004 | Spine2004，29，5： | 1 |
| 16 | Enhancement of ar- temisinin content by constitutive expression of the HMG-CoA reductase gene in high-yielding strain of Artemisia annua L显示文摘 | Naris T Akmal M Ram M | 2011 | Plant Biotechnology Reports2011，5，1： | 1 |
| 17 | Erectile dysfunction after transurethral resection of the prostate: incidence and risk factors显示文摘 | Akmal Taher | 2004 | World Journal of Urology2004，，6： | 1 |
| 18 | Hemodialysis in diabetic patients 显示文摘 | MOHAMMAD AKMAL | 2001 | Am j of Kidney Diseases2001，38，41： | 1 |
| 19 | Retinoic acid receptor alpha gene expression in the rat testis:potential role during the prophase of meiosis and in the transition from round to elongating spermatids显示文摘 | Akmal KM Dufour JM Kim KH | 1997 | Biol Reprod1997，56，： | 1 |
| 20 | Influence of recycled concrete aggregates on strength properties of concrete显示文摘 | Tabsh Sami W Abdelfatah Akmal S | | 0，，02： | 1 |
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