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| 1 | Chronic Liver Failure-Sequential Organ Failure Assessment is better than the Asia-Pacific Association for the Study of Liver criteria for defining acute-on-chronic liver failure and predicting outcome显示文摘AIM:To compare the utility of the Chronic Liver FailureSequential Organ Failure Assessment(CLIF-SOFA)and Asia-Pacific Association for the Study of Liver(APASL)definitions of acute-on-chronic liver failure(ACLF)in predicting short-term prognosis of patients with ACLF.METHODS:Consecutive patients of cirrhosis with acute decompensation were prospectively included.They were grouped into ACLF and no ACLF groups as per CLIF-SOFA and APASL criteria.Patients were followed up for 3 mo from inclusion or mortality whichever was earlier.Mortality at 28-d and 90-d was compared between no ACLF and ACLF groups as per both criteria.Mortality was also compared between different grades of ACLF as per CLIF-SOFA criteria.Prognostic scores like CLIF-SOFA,Acute Physiology and ChronicHealth Evaluation(APACHE)-Ⅱ,Child-Pugh and Model for End-Stage Liver Disease(MELD)scores were evaluated for their ability to predict 28-d mortality using area under receiver operating curves(AUROC).RESULTS:Of 50 patients,38 had ACLF as per CLIFSOFA and 19 as per APASL criteria.Males(86%)were predominant,alcoholic liver disease(68%)was the most common etiology of cirrhosis,sepsis(66%)was the most common cause of acute decompensation while infection(66%)was the most common precipitant of acute decompensation.The 28-d mortality in no ACLF and ACLF groups was 8.3%and 47.4%(P=0.018)as per CLIF-SOFA and 39%and 37%(P=0.895)as per APASL criteria.The 28-d mortality in patients with no ACLF(n=12),ACLF grade 1(n=11),ACLF grade 2(n=14)and ACLF grade 3(n=13)as per CLIF-SOFA criteria was 8.3%,18.2%,42.9%and76.9%(χ2 for trend,P=0.002)and 90-d mortality was 16.7%,27.3%,78.6%and 100%(χ2 for trend,P<0.0001)respectively.Patients with prior decompensation had similar 28-d and 90-d mortality(39.3%and 53.6%)as patients without prior decompensation(36.4%and 63.6%)(P=NS).AUROCs for 28-d mortality were 0.795,0.787,0.739 and 0.710 for CLIF-SOFA,APACHE-Ⅱ,Child-Pugh and MELD scores respectively.On multivariate analysis of these scores,CLIF-SOFA was the only significant independent predictor of mortality with an odds ratio 1.538(95%CI:1.078-2.194).CONCLUSION:CLIF-SOFA criteria is better than APASL criteria to classify patients into ACLF based on their prognosis.CLIF-SOFA score is the best predictor of short-term mortality. | Radha K Dhiman Swastik Agrawal Tarana Gupta Ajay Duseja Yogesh Chawla | 2014 | World Journal of Gastroenterology2014,20,40: | 26 |
| 2 | 心肌缺血后处理对急性ST段抬高型心肌梗死再灌注损伤的保护作用显示文摘目的 探讨缺血后处理对ST段抬高型心肌梗死(STEMI)再灌注损伤的保护作用.方法 2006年10月至2009年1月在北华大学附属医院心内科住院并在12 h内行直接冠状动脉介入治疗(PCI)的STEMI患者64例,分为对照组(34例)及缺血后处理组(30例).对照组给予单纯再灌注治疗,缺血后处理组采用再灌注30 s/再缺血30 s,交替3次后再持续灌注的方法.比较两组再灌注心律失常的发生率、发病72 h的CK和CK-MB峰值及72 h的CK值动态变化、冠状动脉血流速度(CTFC)、室壁运动计分(WMSI)、左心室射血分数(LVEF)、QRS计分法测定心肌梗死面积(QRS-MIS)、心肌呈色分级(MBG)的变化.结果 对照组和缺血后处理组再灌注心律失常频发室性早搏发生率分别为52.9%(18/34)和26.7%(8/30,P<0.05),短阵室性心动过速的发生率分别为58.8%(20/34)和23.3%(7/30,P<0.05),CK峰值分别为(1732±480)U/L和(1162±548)U/L(P<0.01),CK-MB峰值分别为(280±99)U/L和(165±70)U/L(P<0.01),CTFC分别为(26.97±3.42)帧和(22.23±3.81)帧(P<0.05),WMSI分别为1.82±0.83和1.27±0.52(P<0.05),LVEF分别为0.47 ±0.10和0.55±0.08(P<0.05),心肌梗死面积分别为(14.65±6.88)%和(10.60±4.97)%(P<0.05),MBG分别为1.47±0.61和2.27±0.64(P<0.05).结论 心肌缺血后处理能显著减轻STEMI患者心肌再灌注损伤,有显著的心肌保护作用. | 刘同库 Ajay K.Mishra 丁福祥 | 2011 | 中华心血管病杂志2011,39,1: | 24 |
| 3 | 沥青质分散剂评价方法改进与新型高效分散剂合成显示文摘为了更加高效准确地评价沥青质分散剂,首次利用测定掺稀后黏度变化的实验方法取代现有沉淀评价方法,结合对现有市售分散剂的评价结果,分析了原有方法的缺点与不足。利用新方法探索了不同基团、链长、结构对分散剂分散性能的影响。结果表明,在用沉淀法测定时,强极性的烷基苯磺酸和长链离子液体分散剂出现增稠现象。针对塔河某掺稀井最为合适的沥青质分散剂应是具有C18烷基链长、含有2~4个极性头基团的多胺类非离子型表面活性剂。在此基础上,以油酸和二乙烯三胺合成了新型的长链烷基酰胺二胺型沥青质分散剂。通过掺稀黏度法测得,新合成的分散剂与沥青混合液在30、60℃下的平均黏度为890和277 m Pa·s,比常用的Span80多元醇类分散剂分别提高27%和46%。 | 周洪涛 贾寒 刘源 刘东亮 AJAY Seth 郑利强 | 2014 | 油田化学2014,31,4: | 15 |
| 4 | Transarterial chemoembolization using degradable starch microspheres and iodized oil in the treatment of advanced hepatocellular carcinoma: evaluation of tumor response, toxicity, and survival显示文摘BACKGROUND: In a multidisciplinary conference patients with advanced non-resectable hepatocellular carcinoma (HCC) were stratified according to their clinical status and tumor extent to different regional modalities or to best supportive care. The present study evaluated all patients who were stratified to repeated transarterial chemoembolization (TACE) from 1999 until 2003 in terms of tumor response, toxicity, and survival. A moderate embolizing approach was chosen using a combination of degradable starch microspheres (DSM) and iodized oil (Lipiodol) in order to combine anti-tumoral efficiency and low toxicity. METHODS: Fourty-seven patients were followed up prospectively. TACE treatment consisted of cisplatin (50 mg/m2), doxorubicin (50 mg/m2), 450-900 mg DSM, and 5-30 ml Lipiodol. DSM and Lipiodol were administered according to tumor vascularization. Patient characteristics,toxicity, and complications were outlined. In multivariate regression analyses of pre-treatment variables from a prospective database, predictors for tumor response and survival after TACE were determined. RESULTS: 112 TACE courses were performed (2.4±1.5 courses per patient). Mean maximum tumor size was 75 (± 43) mm, in 68% there was bilobar disease. Best response to TACE treatment was: progressive disease (PD) 9%, stable disease (SD) 55%, partial remission (PR) 36%, and complete remission (CR) 0%. Multivariate regression analyses identified tumor size ≤75 mm, tumor number ≤5, and tumor hypervascularization as predictors for PR. The overall 1-, 2-, and 3-year-survival rates were 75%, 59%, and 41%, respectively, and the median survival was 26 months. Low α-fetoprotein levels (<400 ng/ml) (Odds ratio=3.3) and PR as best response to TACE (Odds ratio=6.7) were significantly associated with long term survival (>30 months, R2=36%). Grade 3 toxicity occurred in 7.1% (n=8), and grade 4 toxicity in 3.6% (n=4) of all courses in terms of reversible leukopenia and thrombocytopenia. The incidence of major complications was 5.4% (n=6). All complications were managed conservatively. The mortality within 6 weeks after TACE was 2.1% (one patient). CONCLUSIONS: DSM and Lipiodol were combined successfully in the palliative TACE treatment of advanced HCC resulting in high rates of tumor response and survival at limited toxicity. Favourable tumor response was associated with tumor extent and vascularization. TACE using DSM and Lipiodol can be considered a suitable palliative measure in patients who might not tolerate long acting embolizing agents. | Timm D Kirchhoff Joerg S Bleck Arne Dettmer Ajay Chavan Herbert Rosenthal Sonja Merkesdal Bernd Frericks Lars Zender Nisar P Malek Tim F Greten Stefan Kubicka Michael P Manns Michael Galanski | 2007 | Hepatobiliary & Pancreatic Diseases International2007,6,3: | 15 |
| 5 | Combination of repeated single-session percutaneous ethanol injection and transarterial chemoembolisation compared to repeated single-session percutaneous ethanol injection in patients with non-resectable hepatocellular carcinoma显示文摘瞄准:为病人评估经皮的乙醇注射(PEI ) 的治疗效果与先进, non-resectable HCC 与 transarterial chemoembolisation 的联合相比(不作声) 并且重复单个会议的 PEI,独自重复了单个会议的 PEI,重复不作声独自一个,或最好的支持的照顾。方法:在学习时期期间接受了 PEI 治疗的所有病人根据物理地位和肿瘤程度被包括并且成层到下列治疗形式之一:联合不作声并且重复单个会议的 PEI,独自重复了单个会议的 PEI,重复不作声独自一个,或最好的支持的照顾。包括Okuda分类,门静脉血栓的存在,腹水的存在,肿瘤的数字,最大的肿瘤直径,和假胆硷酯酶( CHE )的临床的参数的预示的价值,以及孩子呸上演, alpha-fetoprotein (法新社),发烧,复杂并发症的发生在这些组之间被估计并且比较。幸存用 Kaplan-Meier 被决定,多,变量回归分析。结果:所有病人的 1 年、 3 年的幸存是 73% 和 47% 。在亚群分析,联合不作声, PEI (1 ) 与更长的幸存被联系(1- , 3- , 5 年的幸存:90% , 52% ,和 43%) 与 PEI 治疗相比独自一个(2 )(1- , 3- , 5 年的幸存:65% , 50% ,和 37%) 。(3 ) 在起始的层化以后的第二等的 PEI 产出可比较的结果不作声(1- , 3- , 5 年的幸存:91% , 40% ,和 30%) 当在到最好的支持的照顾(4 ) 的层化以后的 PEI 与减少的幸存被联系时(1- , 3- , 5 年的幸存:50% , 23% , 12%) 。除了选择治疗形式,为更好的幸存的预言者是肿瘤数字(n <
5 ) ,肿瘤尺寸(<
5 厘米) ,在 PEI 前的没有腹水,和在 PEI 以后的稳定的假胆硷酯酶(P <
0.05 ) 。在在 PEI 以后的 2 wk 以内的死亡是 2.8%(n = 3 ) 。有 24 (8.9%) 主修在包括部分肝梗塞,焦点的肝坏死,和肝脓肿的 PEI 以后的复杂并发症。所有复杂并发症能非通过手术被管理。结论:重复单个会议的 PEI 在有以可接受、可管理的复杂并发症率的先进 HCC 的病人是有效的。病人们成层到联合不作声, PEI 能比那些独自成层到重复 PEI 期望更长的幸存。而且,有在好临床的地位的大或多重的肿瘤的病人可以也从联合获利不作声并且为第二等的 PEI 的再考虑。 | Arne Dettmer Timm D Kirchhoff Michael Gebel Lars Zender Nisar P Malek Bernhard Panning Ajay Chavan Herbert Rosenthal Stefan Kubicka Susanne Krusche Sonja Merkesdal Michael Galanski Michael P Manns Joerg S Bleck | 2006 | World Journal of Gastroenterology2006,12,23: | 14 |
| 6 | Plant Cell Wall Matrix Polysaccharide Biosynthesis显示文摘一个膨胀植物房间的墙首先由与结构、酶的蛋白质的小数量一起在 hemicellulosic 和果胶的多糖的一个矩阵嵌入的纤维素 microfibrils 组成。矩阵多糖在 Golgi 被综合并且在他们在纤维素 microfibrils 之中设置的地方,由 exocytosis 出口了到房间墙,它在血浆膜被做并且直接扔了进房间墙。在导致植物生长素的房间扩大的 Golgi glucan 合成的参与长被认出了;然而,仅仅最近,相应于 glucan synthases 的基因被识别了。因为易变的性质并且很,生物化学的纯化是失败的低许多这些酶。Mutational 遗传也证明无效。通过基因表示在系统由功能的描述跟随了的 heterologous 介绍或比较 genomics 识别的候选人基因的表示是相对成功的。从家庭被发现了涉及各种各样的 hemicellulosic glycans 的合成的纤维素象 synthase 一样(Csl ) 的几基因。然而,这条途径的实用性被限制到可能不形成由无关的蛋白质组成的建筑群的那些酶。Nonconventional 途径将逐渐地继续解开 Golgi 多糖生合成的机制。 | Ajay Pal S. Sandhu Gursharn S. Randhawa Kanwarpal S. Dhugga | 2009 | Molecular Plant2009,2,5: | 14 |
| 7 | Coronal shear fractures of distal humerus: Diagnostic and treatment protocols显示文摘Coronal shear fractures of distal humerus involving the capitellum and the trochlea are rare injuries with articular complexity, and are technically challenging for management. With better understanding of the anatomy and imaging advancements, the complex nature of these fractures is well appreciated now. These fractures involve metaphysealcomminution of lateral column and associated intraarticular injuries are common. Previously, closed reduction and excision were the accepted treatment but now preference is for open reduction and internal fixation with an aim to provide stable and congruent joint with early range of motion of joint. Various approaches including extensile lateral, anterolateral and posterior approaches have been described depending on the fracture pattern and complexity. Good to excellent outcome have been reported with internal fixations and poor results are noted in articular comminution with associated articular injuries. Various implants including headleass compression screws, minifragment screws, bioabsorbable implants and column plating are advocated for reconstruction of these complex fractures. Inspite of articular fragments being free of soft tissue attachments the rate of osteonecrosis and osteoarthritis is reported very less after internal fixation. This article summarizes the diagnostic and treatment strategies for these rare fractures and recommendations for management. | Ajay Pal Singh Arun Pal Singh | 2015 | World Journal of Orthopedics2015,6,11: | 13 |
| 8 | Methane hydrate formation and dissociation in synthetic seawater显示文摘The formation and dissociation of methane gas hydrate at an interface between synthetic seawater (SSW) and methane gas have been experimentally investigated in the present work. The amount of gas consumed during hydrate formation has been calculated using the real gas equation. Induction time for the formation of hydrate is found to depend on the degree of subcooling. All the experiments were conducted in quiescent system with initial cell pressure of 11.14 MPa. Salinity effects on the onset pressure and temperature of hydrate formation are also observed. The dissociation enthalpies of methane hydrate in synthetic seawater were determined by Clausius-Clapeyron equation based on the measured phase equilibrium data. The dissociation data have been analyzed by existing models and compared with the reported data. | Vikash Kumar Saw Iqbal Ahmad Ajay Mandal G.Udayabhanu Sukumar Laik | 2012 | Journal of Natural Gas Chemistry2012,21,6: | 12 |
| 9 | 微量元素对ABR发酵产氢产甲烷的影响显示文摘为构建厌氧折流板反应器(ABR)发酵联合产氢产甲烷系统,考察了微量元素对ABR系统前端格室发酵产氢、后端格室发酵产甲烷的影响。在进水COD为6 000 mg/L、碱度为1 900 mg/L的条件下,当未投加微量元素时,系统对COD的去除率为51%,产氢能力为0.46 m3/(m3.d),产甲烷能力为0.68 m3/(m3.d),四格室的厌氧污泥脱氢酶活性均较低;而在相同运行条件下,当投加微量元素后,系统对COD的去除率提高到62%以上,产氢能力为0.37 m3/(m3.d),产甲烷能力达到1.66 m3/(m3.d)。研究表明,投加微量元素可有效刺激ABR发酵联合产氢产甲烷系统中厌氧污泥的活性,由于ABR中产甲烷菌等耗氢菌群活性的增强导致发酵产氢作用受到抑制,但产甲烷活性的进一步增强,使系统的处理效能得到明显提高。 | 郑国臣 赵峰 李建政 张照韩 昌盛 闫志成 AJAY Kumar Jha | 2012 | 中国给水排水2012,28,3: | 12 |
| 10 | Impact of depressed left ventricular function on outcomes in patients with three-vessel coronary disease undergoing percutaneous coronary intervention显示文摘 | GAO Zhan XU Bo Ajay J. Kirtane YANG Yue-jin YUAN Jin-qing CHEN Ji-lin QIAO Shu-bin WU Yong-jian QIN Xue-wen YAN Hong-bin YAO Min LIU Hai-bo CHEN Jue YOU Shi-jie GAO Run-lin | 2013 | Chinese Medical Journal2013,,4: | 11 |
| 11 | Nonunion of coronal shear fracture of femoral condyle显示文摘大腿骨的髁的孤立的花冠破裂在成年人是稀罕的并且 Hoffa 骨折不属于工会被报导仅仅在文学的一些时间。我们分析了六个案例在三年的一个时期上的 Hoffa 破裂不属于工会。三个病人保存地被对待,三个病人有固定失败。表示的延期是到一年的 2 个月。治疗协议与膝 arthrolysis 一起由开的减小, pseudoarthrosis 的切除,骨头 grafting 和内部固定组成了。联合在平均数 16 星期在所有病人被完成。治疗 Hoffa 破裂不属于工会要求小心的外科手术前的计划和过细的外科的技术。关于在破裂管理和外科的技术的争吵的文学被考察。 | Ajay Pal Singh Ish Kumar Dhammi Raju Vaishya Anil Kumar Jain Arun Pal Singh Prashant Modi | 2011 | Chinese Journal of Traumatology2011,14,3: | 11 |
| 12 | Analysis of isoquinoline alkaloids from Mahonia leschenaultia and Mahonia napaulensis roots using UHPLC-Orbitrap-MSn and UHPLC-QqQ LIT-MS/MS显示文摘Mahonia leschenaultia(ML) and Mahonia napaulensis(MN) are less known and unexplored medicinal plants of the family Berberidaceae. They are used by the Todas of Nilgiris in their religious and medical practices but chemically less identified. Hence, we decided to do extensive phytochemical analysis to explore the potential of these plant extracts. An ultrahigh performance electrospray tandem mass spectrometry(UHPLC–ESI–MS/MS)method was successfully developed for qualitative analysis of the bioactive components in Mahonia species using Orbitrap Velos Pro mass spectrometer. Sixteen compounds were identified by comparison of their retention times and mass spectra(MS) with authentic standards and reported literature. Multi-stage mass spectra(MS^(2–8)) for the identification of protoberberine and aporphine alkaloids showed the sequential expulsion of all the substituents attached with their basic skeleton followed by CO loss. Eight of the identified compounds(berberine, jatrorrhizine, palmatine, magnoflorine, isocorydine, glaucine, tetrahydropalmatine and tetrahydroberberine) were simultaneously determined by another UHPLC–ESI–MS/MS method under the multiple reactions monitoring(MRM) mode quantitatively using triple quadrupole linear ion trap mass spectrometer. The analytical method was validated for 8 bioactive compounds with overall recovery in the range98.5%–103.6%(RSD≤2.2%), precise(RSD≤2.07%) and linear(r≥0.9995) over the concentration range of 0.5–1000 ng/mL and successfully applied in ML and MN roots, which suggests the suitability of the proposed approach for the routine analysis of Mahonia species and their quality control. | Awantika Singh Vikas Bajpai Sunil Kumar Ajay Kumar Singh Rawat Brijesh Kumar | 2017 | Journal of Pharmaceutical Analysis2017,7,2: | 9 |
| 13 | Nonalcoholic steatohepatitis in Asian Indians is neither associated with iron overload nor with HFE gene mutations显示文摘AIM: The pathogenesis of occurrence of liver inflammation and fibrosis in patients with nonalcoholic steatohepatitis (NASH) is not completely understood. Other than insulin resistance, iron abnormalities have been thought to be one of the triggering factors. Therefore, our aim was to study the role of iron abnormalities and HFE gene mutations in patients with NASH.METHODS: Thirty-one patients of NASH diagnosed on the basis of clinical examination biochemistry, ultrasonography and liver biopsy (n = 14) were included in the study. Serum iron parameters (n = 23) (iron, ferritin, total iron-binding capacity and transferrin saturation), Peris' iron staining on liver biopsies (n = 14) and HFE gene mutations (C282Y and H63D) (n = 16) were studied in these patients. The association between iron staining, necroinflammatory activity and fibrosis stage on liver biopsies was also determined.RESULTS: Elevated serum iron, ferritin and transferrin saturation above 55% were observed in 4.3% of patients.On histology, 71% of the patients had negative iron staining,21.4% had 1+ staining, 7.2% had 2+ staining and none had 3+ or 4+ staining. There was no association between the degree of iron staining and necroinflammatory activity (P = 0.55) and fibrosis stage (P = 0.09) on histology. None of the patients had C282Y HFE gene mutation and four patients (25%) were found to be heterozygotes for H63D gene mutation.CONCLUSION: Our study does not favor iron overload and HFE gene mutations as major factors in the pathogenesis of NASH in Asian Indians. | Ajay Duseja Reena Das Mohit Nanda Ashim Das Gurjeewan Garewal Yogesh Chawla | 2005 | World Journal of Gastroenterology2005,11,3: | 9 |
| 14 | 新能源节能动力汽车及电工电子设计研发显示文摘本文介绍了新能源节能动力汽车及电工电子设计研发,从汽车电工电子设计技术等方面较深入地探讨了汽车节能的方法,论述了研发新能源节能动力汽车与技术动向。相信未来有更节能、更环保、更先进的动力机汽车出现。 | 陈丁跃 陈李昊 Ajay K.Agrawal | 2007 | 中国科技论坛2007,,12: | 9 |
| 15 | Applying real time seismic monitoring technology for slope stability assessment—An Indian opencast coal mine perspective显示文摘This paper outlines the results obtained from real time microseismic monitoring of an opencast coal mine in South India.The objective of the study is to investigate the stress changes within the rockmass along the slope due to underground mine development operation and their impact on the stability of the highwall slope.The installed microseismic systems recorded the seismic triggerings down toà2 moment magnitude.In general,most of the events recorded during the monitoring period are weak in seismic energy.The study adopts a simple and more reliable tool to characterize the seismically active zone for assessing the stability of the highwall in real time.The impact of underground working on the slope is studied on the basis of the seismic event impact contours and seismic clusters.During the monitoring period,it is observed that the intensity of the overall microseismic activity along the slope due to the mine development operations did not cause any adverse impact on the highwall stability. | Vinoth S. Ajay Kumar L. | 2014 | International Journal of Mining Science and Technology2014,24,1: | 9 |
| 16 | Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties显示文摘Surfactants for enhanced oil recovery are important to study due to their special characteristics like foam generation,lowering interfacial tension between oleic and aqueous phases,and wettability alteration of reservoir rock surfaces.Foam is a good mobility control agent in enhanced oil recovery for improving the mobility ratio.In the present work,the foaming behavior of three nonionic ethoxylated surfactants,namely Tergitol 15-S-7,Tergitol 15-S-9,and Tergitol 15-S-12,was studied experimentally.Among the surfactants,Tergitol 15-S-12 shows the highest foamability.The effect of Na Cl concentration and synthetic seawater on foaming behavior of the surfactants was investigated by the test-tube shaking method.The critical micelle concentrations of aqueous solutions of the different nonionic surfactants were measured at 300 K.It was found that the critical micelle concentrations of all surfactants also increased with increasing ethylene oxide number.Dynamic light scattering experiments were performed to investigate the micelle sizes of the surfactants at their respective critical micelle concentrations.Core flooding experiments were carried out in sand packs using the surfactant solutions.It was found tha t22% additional oil was recovered in the case of all the surfactants over secondary water flooding.Tergitol 15-S-12exhibited the maximum additional oil recovery which is more than 26%after water injection. | Achinta Bera Ajay Mandal Hadi Belhaj Tarkeswar Kumar | 2017 | Petroleum Science2017,14,2: | 8 |
| 17 | Antioxidant,lipid peroxidation inhibition and free radical scavenging efficacy of a diterpenoid compound sugiol isolated from Metasequoia glyptostroboides显示文摘Objective:To investigate the antioxidant enicacy of a biologically active dilerpenoid compound sugiol isolated from Metasequoia glyptostroboides(M.glyptostroboides)in various antioxidant models.Methods:An abietane type diterpenoid sugiol,isolated from ethyl acetate extract of M.glyptostroboides cones,was analyzed for its antioxidant efficacy as reducing power ability and lipid peroxidation inhibition as well as its ability to scavenge free radicals such as 1,1-diphenyl-2-picryl hydrazyl,nitric oxide,superoxide and hydroxyl radicals.Results:The sugiol showed significant and concentration-dependent antioxidant and free radical scavenging activities.Consequently,the sugiol exerted lipid peroxidation inhibitory effect by 76.3%as compared to a-tocopherol(80.13%)and butylaled hydroxyanisole(76.59%).In addition,the sugiol had significant scavenging activities of l,l-diphenyl-2-picryl hydrazyl,nitric oxide,superoxide and hydroxyl free radicals in a concentration-dependent manner by 78.83%,72.42%,72.99%and 85.04%,when compared to the standard compound ascorbic acid(81.69%,74.62%,73.00%and 73.79%)and a-tocopherol/butylated hydroxyanisole(84.09%,78.61%,74.45%and 70.02%),respectively.Conclusions:These findings justify the biological and traditional uses of M.glyptostroboides or its secondary metabolites as confirmed by its promising antioxidant efficacy. | Vivek K.Bajpai Ajay Sharma Sun Chul Kang Kwang-Hyun Baek | 2014 | Asian Pacific Journal of Tropical Medicine2014,7,1: | 8 |
| 18 | Experimental assessment and prediction of temporal scour depth around a spur dike显示文摘Spur dikes are river training structures that have been extensively used worldwide for towards enhancing flood control and the stability of embankments and riverbanks.However,scour around spur dikes can be a major problem affecting their stability and hydraulic performance.The precise computation of temporal scour depth at spur dikes is very important for the design of economical and safe spur dikes.This study focuses on experimentally assessing the temporal variation of scour depth around a vertical wall spur dike and identifying the parameters,which mostly influence spur dike performance for a channel bed surface comprised of sand-gravel mixtures.In the current study,the authors did physical experiments in a flume based study to obtain new data,aimed at deriving a new predictive model for spur dike scour and comparing its performance to others found in the literature.It was found that the dimensionless temporal scour depth variation increases with an increase in(i)the threshold velocity ratio,(ii)the densimetric Froude number of the bed surface sediment mixture,(iii)the flow shallowness(defined as the ratio of the approach flow depth,y,to the spur dike’s transverse length,l),and(iv)the flow depth-particle size ratio.It is also concluded that the temporal scour depth variation in the sediment mixture is influenced by the non-uniformity of sediment and decreases with an increase in the non-uniformity of the sediment mixture.A new mathematical model is derived for the estimation of temporal scour depths in sand-gravel sediment mixtures.The proposed equation has been calibrated and validated with the experimental data,demonstrating a good predictive capacity for the estimation of temporal scour depth evolution. | Manish Pandey Manousos Valyrakis Meilan Qi Anurag Sharma Ajay Singh Lodhi | 2021 | International Journal of Sediment Research2021,36,1: | 8 |
| 19 | Functional properties, phenolic constituents and antioxidant potential of industrial apple pomace for utilization as active food ingredient显示文摘Apple pomace is a waste biomass generated after apple fruit processing.In present investigation,efforts were made to comprehend influence of differently dried pomace on cell wall properties and phenolic profile.Different drying techniques were employed to remove moisture content from fresh apple pomace.Total dietary fiber yield(74%)and array of functional properties such as density,water and oil holding capacity,swelling capacity and glucose dialysis retardation index(36.91%)was found better in freeze dried fraction.The higher total phenolics(5.78±0.08 mg GAE/g dry weight)content was also recorded in freeze dried fraction followed by oven and sun drying.The 50%aqueous acetone was found as more efficient solvent for extraction of phenolic constituents.RP-HPLC analysis has revealed presence of quercetin,phloridzin and phloretin as major phenolics.Thus,it is evident from the results that pomace generated at industrial scale can be utilized as a source of dietary food ingredient. | Shalika Ranaa Sakshi Gupta Ajay Rana Shashi Bhushan | 2015 | Food Science and Human Wellness2015,4,4: | 8 |
| 20 | Per oral cholangiopancreatoscopy in pancreatico biliary diseases- Expert consensus statements显示文摘AIM: To provide consensus statements on the use of per-oral cholangiopancreatoscopy(POCPS).METHODS: A workgroup of experts in endoscopic retrograde cholangiopancreatography(ERCP), endosonography, and POCPS generated consensus statements summarizing the utility of POCPS in pancreaticobiliary disease. Recommendation grades used validated evidence ratings of publications from an extensive literature review.RESULTS: Six consensus statements were generated:(1) POCPS is now an important additional tool during ERCP;(2) in patients with indeterminate biliary strictures, POCS and POCS-guided targeted biopsy are useful for establishing a definitive diagnosis;(3) POCS and POCS-guided lithotripsy are recommended for treatment of difficult common bile duct stones when standard techniques fail;(4) in patients with main duct intraductal papillary mucinous neoplasms(IPMN) POPS may be used to assess extent of tumor to assist surgicalresection;(5) in difficult pancreatic ductal stones,POPS-guided lithotripsy may be useful in fragmentation and extraction of stones; and(6) additional indications for POCPS include selective guidewire placement,unexplained hemobilia, assessing intraductal biliary ablation therapy, and extracting migrated stents. CONCLUSION: POCPS is important in association with ERCP, particularly for diagnosis of indeterminate biliary strictures and for intra-ductal lithotripsy when other techniques failed, and may be useful for preoperative assessment of extent of main duct IPMN, for extraction of difficult pancreatic stones, and for unusua indications involving selective guidewire placement,assessing unexplained hemobilia or intraductal biliary ablation therapy, and extracting migrated stents. | Mohan Ramchandani Duvvur Nageshwar Reddy Sundeep Lakhtakia Manu Tandan Amit Maydeo Thoguluva Seshadri Chandrashekhar Ajay Kumar Randhir Sud Rungsun Rerknimitr Dadang Makmun Christopher Khor | 2015 | World Journal of Gastroenterology2015,21,15: | 8 |