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| 1 | Preventive effects of geranylgeranylacetone on rat ethanolinduced gastritis显示文摘AIM:To establish a rat ethanol gastritis model,we evaluated the effects of ethanol on gastric mucosa and studied the preventive effects of geranylgeranylacetone on ethanol-induced chronic gastritis.METHODS:One hundred male Sprague-Dawley rats were randomly divided into 4 equal groups:normal control group,undergoing gastric perfusion of normal saline(NS) by gastrogavage;model control group and 2 model therapy groups that underwent gastric perfusion with ethanol(distillate spirits with 56% ethanol content) by gastrogavage for 4 wk.Low or high doses of geranylgeranylacetone were added 1 h before ethanol perfusion in the 2 model therapy groups,while the same amount of NS,instead of geranylgeranylacetone was used in that model control group.The rats were then sacrificed and stomachs were removed.The injury level of the gastric mucosa was observed by light and electron microscopy,and the levels of prostaglandin 2(PGE 2),endothelin-1(ET-1) and nitric oxide(NO) were measured by radioimmunoassay and the Griess method.RESULTS:The gastric mucosal epidermal damage score(EDS;4.5) and ulcer index(UI;12.0) of the model control group were significantly higher than that of the normal control group(0 and 0 respectively,all P = 0.000).The gastric mucosal EDS and UI of the 2 model therapy groups(EDS:2.5 and 2.0;UI:3.5 and 3.0) were significantly lower than that of the model control group(all P < 0.01).There was no statistically significant difference between the low-dose and high-dose model therapy groups.The expression value of plasma ET-1 of the model control group was higher than that of the normal control group(P < 0.01) and the 2 model therapy groups(all P < 0.01).The expression values of gastric mucosal PGE 2 and serum NO of the model control group were lower than those of the normal control group(all P < 0.05) and the 2 model therapy groups(all P < 0.05).The thickness of the gastric mucous layerand the hexosamine content in the model control group were significantly lower than that in the normal control group(all P < 0.01) and the 2 model therapy groups(all P < 0.05).Scanning and transmission electron microscopy observation showed that in the model control group,the epithelial junctions were vague,the intercellular joints disappeared and damage of the intracellular organelles were significantly worse than those in the normal control group.However,in the 2 model therapy groups,damage to the intercellular joints and organelles was ameliorate relative to the model control group.CONCLUSION:Administration of geranylgeranylacetone was correlated with a more favorable pattern of gastric mucosa damage after ethanol perfusion.The mechanism could be related to regulation of ET-1,NO and PGE 2. | Jian-Wen Ning Guan-Bin Lin Feng Ji Jia Xu Najeeb Sharify | 2012 | World Journal of Gastroenterology2012，18，18： | 12 |
| 2 | Evaluation on Sixty-eight Rice Germplasms in Cold Tolerance at Germination Stage显示文摘Sixty-eight rice germplasms were used for cold tolerance evaluation at the germination stage in laboratory.Seeds of rice germplasms germinated at three different temperatures containing low temperature(constant 13°C for 28 days),alternative temperature(a temperature cycle of 12 h at 20°C and 12 h at 23°C for 14 days) and control(constant 26°C for 7 days).Analysis of variance revealed that temperature had a significant effect on germination rate,coleoptile length and radicle length.Germination rate was strongly affected by the low temperature and alternative treatments.Stress of low temperature at the germination stage on the tested rice germplasms caused a reduction in final germination rate and the lengths of coleoptile and radicle.The normal and healthy seeds began to germinate within 36 h after imbibition and germination were completed on the 7th day in the control,but delayed under the low and alternative temperature treatments.The low and alternative temperature treatments delayed the growth of coleoptile and radicle compared to the control,and the average lengths of coleoptile and radicule were strongly inhibited with the decreasing temperature in all of the tested germplasms.Taichung,a semi-dwarf,low amylose content and early maturing rice variety,showed a significantly higher germination rate at the three temperature treatments and its coleoptile length was significantly higher than other germplasms. | Peyman SHARIFI | 2010 | Rice science2010，17，1： | 12 |
| 3 | Review on application of nanoparticles for EOR purposes: A critical review of the opportunities and challenges显示文摘Nanoparticles have already gained attentions for their countless potential applications in enhanced oil recovery.Nano-sized particles would help to recover trapped oil by several mechanisms including interfacial tension reduction, impulsive emulsion formation and wettability alteration of porous media. The presence of dispersed nanoparticles in injected fluids would enhance the recovery process through their movement towards oil–water interface. This would cause the interfacial tension to be reduced. In this research, the effects of different types of nanoparticles and different nanoparticle concentrations on EOR processes were investigated. Different flooding experiments were investigated to reveal enhancing oil recovery mechanisms. The results showed that nanoparticles have the ability to reduce the IFT as well as contact angle, making the solid surface to more water wet. As nanoparticle concentration increases more trapped oil was produced mainly due to wettability alteration to water wet and IFT reduction. However, pore blockage was also observed due to adsorption of nanoparticles, a phenomenon which caused the injection pressure to increase. Nonetheless, such higher injection pressure could displace some trapped oil in the small pore channels out of the model. The investigated results gave a clear indication that the EOR potential of nanoparticle fluid is significant. | Yousef Kazemzadeh Sanaz Shojaei Masoud Riazi Mohammad Sharifi | 2019 | Chinese Journal of Chemical Engineering2019，27，2： | 12 |
| 4 | Grain Size Distribution and Interfacial Heat Transfer Coefficient during Solidification of Magnesium Alloys Using High Pressure Die Casting Process显示文摘The objective of this study is to predict grain size and heat transfer coefficient at the metal–die interface during high pressure die casting process and solidification of the magnesium alloy AM60. Multiple runs of the commercial casting simulation package, ProCAST^(TM), were used to model the mold filling and solidification events employing a range of interfacial heat transfer coefficient values. The simulation results were used to estimate the centerline cooling curve at various locations through the casting. The centerline cooling curves, together with the die temperature and the thermodynamic properties of the alloy, were then used as inputs to compute the solution to the Stefan problem of a moving phase boundary,thereby providing the through-thickness cooling curves at each chosen location of the casting. Finally, the local cooling rate was used to calculate the resulting grain size via previously established relationships.The effects of die temperature, filling time and heat transfer coefficient on the grain structure in skin region and core region were quantitatively characterized. It was observed that the grain size of skin region strongly depends on above three factors whereas the grain size of core region shows dependence on the interfacial heat transfer coefficient and thickness of the samples. The grain size distribution from surface to center was estimated from the relationship between grain size and the predicted cooling rate.The prediction of grain size matches well with experimental results. A comparison of the predicted and experimentally determined grain size profiles enables the determination of the apparent interfacial heat transfer coefficient for different locations. | P. Sharifi J. Jamali K. Sadayappan J.T. Wood | 2018 | Journal of Materials Science & Technology2018，34，2： | 8 |
| 5 | Serum γ-glutamyltransferase,alanine aminotransferase,and aspartate aminotransferase activity in Iranian healthy blood donor men显示文摘AIM: To determine serum γ-glutamyltransferase (GGT), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) activity, and to assess their correlation with demographic and clinical findings in healthy blood donors. METHODS: This cross-sectional study was performed in 934 male blood donors, aged 18 to 68 years, who consecutively attended Tehran blood transfusion service in 2006. All participants were seronegative for HBV or HCV infections, non alcohol users, and all underwent a standard interview and anthropometric tests. Clinical and biochemical parameters including AST, ALT, and GGT activities were determined. Patients taking drugs known to cause hepatic fat deposition were excluded. For AST, ALT, and GGT variables, we used 33.33 and 66.66 percentiles, so that each of them was divided into three tertiles. RESULTS: Mean AST, ALT, and GGT activities were 25.26 ± 12.58 U/L (normal range 5-35 U/L), 33.13 ± 22.98 (normal range 5-35 U/L), and 25.11 ± 18.32 (normal range 6-37 U/L), respectively. By univariate analyses, there were significant associations between increasing AST, ALT, or GGT tertiles and age, body weight, body mass index, and waist and hip circumferences (P < 0.05). By multiple linear regression analyses, ALT was found to be positively correlated with dyslipidemia (B = 6.988, P = 0.038), whereas ALT and AST were negatively correlated with age. AST, ALT, and GGT levels had positive correlation with family history of liver disease (B = 15.763, P < 0.001), (B = 32.345, P < 0.001), (B =24.415, P < 0.001), respectively.CONCLUSION: Although we did not determine the cutoffs of the upper normal limits for AST, ALT, and GGT levels, we would suggest screening asymptomatic patients with dyslipidemia and also subjects with a family history of liver disease. | Hossein Khedmat Farahnaz Fallahian Hassan Abolghasemi Bashir Hajibeigi Zohre Attarchi Farshid Alaeddini Mohammad Taghi Holisaz Masoumeh Pourali Shahin Sharifi Nasrin Zarei | 2007 | World Journal of Gastroenterology2007，13，6： | 7 |
| 6 | Comparison between Emergency Severity Index and Heart Failure Triage Scale in heart failure patients: A randomized clinical trial显示文摘BACKGROUND:It is not clear whether Emergency Severity Index(ESI)is valid to triage heart failure(HF)patients and if HF patients benefi t more from a customized triage scale or not.The aim of study is to compare the effect of Heart Failure Triage Scale(HFTS)and ESI on mistriage among patients with HF who present to the emergency department(ED).METHODS:A randomized clinical trial was conducted from April to June 2017.HF patients with dyspnea were randomly assigned to HFTS or ESI groups.Triage level,used resources and time to electrocardiogram(ECG)were compared between both groups among HF patients who were admitted to coronary care unit(CCU),cardiac unit(CU)and discharged patients from the ED.Content validity was examined using Kappa designating agreement on relevance(K*).Reliability of both scale was evaluated using inter-observer agreement(Kappa).RESULTS:Seventy-three and 74 HF patients were assigned to HFTS and ESI groups respectively.Time to ECG in HFTS group was signifi cantly shorter than that of ESI group(2.05 vs.16.82 minutes).Triage level between HFTS and ESI groups was signifi cantly different among patients admitted to CCU(1.0 vs.2.8),cardiac unit(2.26 vs.3.06)and discharged patients from the ED(3.53 vs.2.86).Used resources in HFTS group was significantly different among triage levels(H=25.89;df=3;P<0.001).CONCLUSION:HFTS is associated with less mistriage than ESI for triaging HF patients.It is recommended to make use of HFTS to triage HF patients in the ED. | Ahmad Pouyamehr Amir Mirhaghi Mohammad Davood Sharifi Ali Eshraghi | 2019 | World Journal of Emergency Medicine2019，10，4： | 5 |
| 7 | An exploratory study on the use of enzyme activities as sediment tracers:biochemical fingerprints?显示文摘Little information exists on the potential of soil enzyme activities,which are sensitive to soil properties and management,for the characterization of sediment sources at the catchment scale.The objective of this study is to explore and evaluate enzyme activity as tracer for sediment fingerprinting in the Hiv catchment(55 km^2),Iran.Therefore,four enzymes were measured from 42 different sampling sites,covering three sediment source areas(rangeland/surface erosion,orchard/surface erosion,and streambank erosion),as well as from 12 sediment samples from reservoir check dams (sediment sinks).The results indicate that,based upon backward mode discriminant analysis,βglucosidase and dehydrogenase,allowed more than 95%of the samples to be correctly assigned to their source areas.These enzymes were selected as input data for a mixing-model to determine the relative contribution of the sampled sediment sources.The mean contributions from rangeland, orchard and streambank sources in the study area were estimated as 11.3%,15.1%and 73.7%, respectively.Using geochemical tracers,the mean contribution from rangeland,orchard and streambank sources was estimated as 14.1%,9.5%and 74.8%,respectively.Combined biochemical and geochemical tracers,similar values were obtained(18.7%,10.7%and 70.7%,respectively).Our results indicate that soil enzyme activity allows for a good characterization of sediment sources,and can provide a complementary tool to currently existing sediment fingerprinting approaches.However, the method should be also tested in other regions. | Kazem NOSRATI Gerard GOVERS Hassan AHMADI Forood SHARIFI Mohammad Ali AMOOZEGAR Roel MERCKX Matthias VANMAERCKE | 2011 | International Journal of Sediment Research2011，26，2： | 5 |
| 8 | Immobilization of organophosphorus hydrolase enzyme by covalent attachment on modified cellulose microfibers using different chemical activation strategies:Characterization and stability studies显示文摘The plant cellulose powder was activated by two different methods using 1,4-butanediol diglycidyl ether(BTDE)and 1,1′-Carbonyldiimidazole(CDI) as the chemical coupling agents.Organophosphorus hydrolase(OPH) from Flavobacterium ATCC 27551 was immobilized on any of activated support through covalent bonding.The optimal conditions of affecting parameters on enzyme immobilization in both methods were found, and it was demonstrated that the highest activity yields of immobilized OPH onto epoxy and CDI treated cellulose were 68.32%and 73.51%, respectively.The surface treatment of cellulose via covalent coupling with BTDE and CDI agents was proved by FTIR analysis.The kinetic constants of the free and immobilized enzymes were determined, and it was showed that both immobilization techniques moderately increased the Kmvalue of the free OPH.The improvements in storage and thermal stability were investigated and depicted that the half-life of immobilized OPH over the surface of epoxy modified cellulose had a better growth compared to the free and immobilized enzymes onto CDI treated support.Also, the pH stability of the immobilized preparations was enhanced relative to the free counterpart and revealed that all enzyme samples would have the same optimum pH value for stability at 9.0.Additionally, the immobilized OPH onto epoxy and CDI activated cellulose retained about 59% and 68% of their initial activity after ten turns of batch operation, respectively.The results demonstrated the high performance of OPH enzyme in immobilized state onto an inexpensive support with the potential of industrial applications. | Meisam Sharifi Seyed-Mortaza Robatjazi Minoo Sadri Jafar Mohammadian Mosaabadi | 2019 | Chinese Journal of Chemical Engineering2019，27，1： | 5 |
| 9 | Effect of water salinity on oil/brine interfacial behaviour during low salinity waterflooding: A mechanistic study显示文摘In recent years,controlling the salinity and composition of the injected water has become an emerging enhanced oil recovery(EOR)technique,often described as low salinity(LS)waterflooding.This work is done with the intention to contribute to the ongoing discussions about LS waterflooding mechanism(s).For this purpose,a series of different experiments were conducted.At first,the effect of salinity on the interfacial tension(IFT)and the contact angle was evaluated with a crude oil sample.Then to achieve more accurate results in observing oil/water interface,similar IFT experiments were also carried out on a synthetic oil containing asphaltenes.Thereafter,microscopic visualization using glass micromodel was performed on the interface of the synthetic oil sample and brines.Four brine solutions including Sea Water(SW),it's dilutions and formation water(FW)were used for various experiments.Finally,to investigate the presented mechanism by other authors,a series of Environmental Scanning Electron Microscopy(ESEM)analysis on the synthetic oil was carried out to understand better the phase behaviour after contacting both synthetic oil and water phases from the micromodel experiment.Based on the existing mechanism,there exists an optimal concentration beyond which dilution is no longer an effective process. | Peyman Rostami Mohammad Fattahi Mehraban Mohammad Sharifi Morteza Dejam Shahab Ayatollahi | 2019 | Petroleum2019，5，4： | 5 |
| 10 | Daily variation of urban heat island effect and its correlations to urban greenery: A case study of Adelaide显示文摘 | All Soitani Ehsan Sharifi | 2017 | Frontiers of Architectural Research2017，6，4： | 4 |
| 11 | Stabilizing silica nanoparticles in high saline water by using polyvinylpyrrolidone for reduction of asphaltene precipitation damage under dynamic condition显示文摘In this study, the performance of stable nanofluid containing SiO2 nanoparticles dispersed and stabilized in high salinity brine for asphaltene inhibition in dynamic condition is evaluated. In the first stage of this work, the stability of silica nanoparticles in different range of water salinity(0–100000 mg·L-1) is investigated. Next, stable nanofluid containing highest salinity is selected as asphaltene inhibitor agent to inject into the damaged core sample. The estimated values of oil recovery for base case, after damage process and after inhibition of asphaltene precipitation using nanofluid are 51.6%, 36.1% and 46.7%, respectively. The results showed the reduction in core damage after using nanofluid. In addition, the relative permeability curves are plotted for the base case, after damage process and also after inhibition of asphaltene precipitation using nanofluid. Comparison of relative permeability curves shows, relative permeability of oil phase decreased after damage process as compared with the base case. But after using nanofluid the oil relative permeability curve has shifted to the right and effective permeability of oil phase has been improved. | Mohammad Reza Aghajanzadeh Mohammad Sharifi | 2019 | Chinese Journal of Chemical Engineering2019，27，5： | 4 |
| 12 | 振动搅拌摩擦焊镁合金动态再结晶过程的模拟与实验研究显示文摘采用二维元胞自动机(CA)模型分析机械振动对AZ91合金在搅拌摩擦焊(FSW)过程中组织演变的影响。将模拟结果,即晶粒拓扑结构、粒度分布、平均晶粒度以及动态再结晶(DRX)分数与实测数据进行比较。结果显示,有限元分析结果与实验数据具有充分的相似性,CA方法可用于搅拌摩擦焊AZ91合金组织演变的分析。与FSW相比,振动搅拌摩擦焊(FSVW)处理的样品中位错密度更高,形核和晶粒长大也更快。对FSVW过程中不同振动频率下的晶粒度改变和DRX现象经过详细模拟后发现,振动使形核开始时间提前,随着振动频率的提高,孕育期和再结晶的比例降低。 | Mahmoud ABBASI Behrouz BAGHERI Farzaneh SHARIFI | 2021 | Transactions of Nonferrous Metals Society of China2021，31，9： | 4 |
| 13 | A new post-coding approach for PAPR reduction in DC-biased optical OFDM systems显示文摘The high peak-to-average power ratio(PAPR) is one of the main drawbacks in orthogonal frequency division multiplexing(OFDM) communication systems, which also exists in the optical OFDM(O-OFDM) systems. In this letter, a new approach based on the discrete Hartley transform(DHT) post-coding technique is proposed to reduce PAPR of an O-OFDM signal in visible light communication systems. The proposed method is compared with Walsh-Hadamard transform(WHT) and discrete cosine transform(DCT) techniques in terms of PAPR reduction and bit error rate(BER)performance. Experimental results indicate that the proposed DHT post-coding method remarkably reduces the PAPR of an OFDM signal for optical intensity modulated direct detection systems without any corruption in the BER performance. | Abbas Ali Sharifi | 2019 | Optoelectronics Letters2019，15，4： | 4 |
| 14 | Photocatalytic reduction of CO2 with H2O over modified TiO2 nanofibers: Understanding the reduction pathway显示文摘Nanosized 金属(磅或 Pd ) 装饰了 TiO 2 nanofibers (NF ) 被一个湿受精方法综合。CdSe 量点(QD ) 然后被抛锚到装饰金属的 TiO 2 NF 上。这些催化剂的 photocatalytic 表演在 UV-B 光下面为公司 2 的激活和减小被测试。煤气的色析法的分析作为主要产品显示了甲醇,蚁的酸,和甲基甲酸盐的形成。当 CdSe QD 不在时,装饰 Pd 的 TiO 2 NF 被发现为甲醇生产与装饰磅的 TiO 2 NF 相比展出提高的性能。面对 CdSe,然而,装饰磅的 TiO 2 NF 为甲醇展出了更高的选择,典型地生产 90 ppmg 1 祴愠潠 { 琠敨朠潲瑷 ? 楤敲瑣潩 ? 景琠敨渠湡牯摯 ? 桷捩 ? 獩爠畯桧祬 ??? S 吗?? | Anjana Sarkar Eduardo Gracia-Espino Thomas Wagberg Andrey Shchukarev Melinda Mohl Anne-Riikka Rautio Olli Pitkanen Tiva Sharifi Krisztian Kordas Jyri-Pekka Mikkola | 2016 | Nano Research2016，9，7： | 4 |
| 15 | Effect of transferring lignocellulose-degrading bacteria from termite to rumen fluid of sheep on in vitro gas production, fermentation parameters, microbial populations and enzyme activity显示文摘The digestive tract of termite(Microcerotermes diversus) contains a variety of lignocellulose-degrading bacteria with exocellulases enzyme activity, not found in the rumen, which could potentially improve fiber degradation in the rumen. The objectives of the current study were to determine the effect of inoculation of rumen fluid(RF) with three species of bacteria isolated from termite digestive tract, Bacillus licheniformis, Ochrobactrum intermedium, and Microbacterium paludicola, on in vitro gas production(IVGP), fermentation parameters, nutrient disappearance, microbial populations, and hydrolytic enzyme activities with fibrous wheat straw(WS) and date leaf(DL) as incubation substrate. Inoculation of RF with either of three termite bacteria increased(P<0.05) ammonia-N concentration compared with the control group(free of termite gut bacteria). Termite bacteria inoculation had no effect(P>0.05) on gas production characteristics, dry matter, organic matter and neutral detergent fiber disappearance, pH, and concentration and composition of volatile fatty acids. Population of proteolytic bacteria and protozoa, but not cellulolytic bacteria, were increased(P<0.05) when RF was inoculated with termite bacteria with both WS and DL substrates. Inoculation of RF with termite bacteria increased protease activity, while activities of carboxymethyl-cellulase, microcrystalline-cellulase, α-amylase and filter paper degrading activity remained unchanged(P>0.05). Overall, the results of this study indicated that transferring lignocellulose-degrading bacteria, isolated from digestive tract of termite, to rumen liquid increased protozoa and proteolytic bacteria population and consequently increased protease activity and ammonia-N concentration in vitro, however, no effect on fermentation and fiber degradation parameters were detected. These results suggest that the termite bacteria might be rapidly lysed by the rumen microbes before beneficial effects on the rumen fermentation process could occur. | Ayoub AZIZI Afrooz SHARIFI Hasan FAZAELI Arash AZARFAR Arjan JONKER Ali KIANI | 2020 | Journal of Integrative Agriculture2020，19，5： | 3 |
| 16 | Aging behavior of a copper-bearing high-strength low-carbon steel显示文摘The effects of aging temperature and time on the hardness and impact toughness of a copper-bearing high-strength low-carbon steel were investigated. The hardness of the aged samples reached maxima after 1 h and 5 h of aging at 500 and 450℃, respectively; this increase in hardness was followed by a decrease in hardness until a temperature of 700℃, at which secondary hardening was observed. The impact toughness of the aged steel was found to be higher for 5 h of aging. Transmission electron microscopy confirmed the presence of carbide and copper precipitates; also, the secondary hardening could be the result of the transformation of austenite(formed in the aging treatment) to martensite. Differential scanning calorimetry of the steel was performed to better understand the precipitation behavior. The results revealed that the precipitation of the steel exhibited two significant stages of copper precipitate nucleation and coarsening of the precipitates, with corresponding activation energies of 49 and 238 k J·mol^(-1), respectively. | Babak Shahriari Reza Vafaei Ehsan Mohammad Sharifi Khosro Farmanesh | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，4： | 3 |
| 17 | 形变热处理制备的纳米晶NiTi形状记忆合金的超弹性行为(英文)显示文摘研究冷轧和后续退火形变热处理对Ni_(50)Ti_(50)形状记忆合金超弹性行为的影响。采用铜坩埚真空感应熔炼法制备样品。将成分均匀的样品进行热轧后在900°C退火,然后再进行冷轧,冷轧后样品的厚度有不同程度的减少,最大可达70%。透射电镜检测结果显示严重的冷轧导致Ni_(50)Ti_(50)合金中形成了纳米晶和非晶的复合显微组织。400°C下退火1 h后,冷轧样品中的非晶发生晶化形成纳米晶组织。随着冷轧变形量的增加,在超弹性实验中Ni_(50)Ti_(50)合金的弹性应变增加,变形量为70%的冷轧-退火样品其弹性应变为12%。此外,随着变形量的增加,应力诱导马氏体相变的临界应力提高。值得注意的是,70%变形量的冷轧-退火样品的阻尼容量值为28 J/cm3,明显高于商业NiTi合金。 | E.MOHAMMAD SHARIFI A.KERMANPUR | 2018 | Transactions of Nonferrous Metals Society of China2018，28，3： | 3 |
| 18 | Intraductal papillary mucinous neoplasm in chronic calcifying pancreatitis:Egg or hen?显示文摘Intraductal papillary mucinous neoplasm(IPMN)is an increasingly reported entity.Extensive pancreatic calcification is generally thought to be a sign of chronic pancreatitis,but it may occur simultaneously with IPMN leading to diagnostic difficulties.We report a case of a patient initially diagnosed with chronic calcifying pancreatitis who was later shown to have a malignant IPMN.This case illustrates potential pitfalls in the diagnosis of IPMN in the case of extensive pancreatic calcification as well as clues that may lead the clinician to suspecting the diagnosis.The possible mechanisms of the relation between pancreatic calcification and IPMN are also reviewed. | Evangelos Kalaitzakis Barbara Braden Palak Trivedi Yalda Sharifi Roger Chapman | 2009 | World Journal of Gastroenterology2009，15，10： | 3 |
| 19 | Addition of senna improves quality of colonoscopy preparation with magnesium citrate显示文摘AIM: To prospectively investigate the effectiveness and patient’s tolerance of two low-cost bowel cleansing preparation protocols based on magnesium citrate only or the combination of magnesium citrate and senna. METHODS: A total of 342 patients who were referred for colonoscopy underwent a colon cleansing protocol with magnesium citrate alone (n = 160) or magnesium citrate and senna granules (n = 182). The colonoscopist rated the overall efficacy of colon cleansing using an established score on a 4-point scale. Patients were questioned before undergoing colonoscopy for side effects and symptoms during bowel preparation. RESULTS: The percentage of procedures rescheduled because ofinsufficient colon cleansing was 7% in the magnesium citrate group and 4% in the magnesium citrate/senna group (P = 0.44). Adequate visualization of the colonic mucosa was rated superior under the citramag/senna regimen (P = 0.004). Both regimens were well tolerated, and did not significantly differ in the occurrence of nausea, bloating or headache.However, abdominal cramps were observed more often under the senna protocol (29.2%) compared to the magnesium citrate only protocol (9.9%, P < 0.0003). CONCLUSION: The addition of senna to the bowel preparation protocol with magnesium citrate significantly improves the cleansing outcome. | Stergios Vradelis Evangelos Kalaitzakis Yalda Sharifi Otto Buchel Satish Keshav Roger W Chapman Barbara Braden | 2009 | World Journal of Gastroenterology2009，15，14： | 3 |
| 20 | Genetic and Genotype × Environment Interaction Effects for Appearance Quality of Rice显示文摘This study was conducted to generate genetic information in rice varieties based on a complete diallel crosses over two years. The results indicated that genotype effect was significant for all traits. Genotype × environment interaction effects were significant only for cooked grain length (CGL) and cooked grain shape (CGSH). General combining ability (GCA) and specific combining ability (SCA) effects were significant for entire traits, which indicated the important roles of both additive and non-additive gene actions. GCA × environment interaction effects were significant for CGL, CGSH and grain elongation index (GEI). In the controlling of the inheritance of milled grain shape (GSH), milled grain width (MGW), GEI, milled grain length (MGL), CGSH and cooked grain width (CGW), the additive gene effects were more important than non-additive one. The average degree of dominance was within the range of partial dominance for all of the traits. The narrow-sense heritability was ranged from 0.65 (GSH) to 0.36 (CGL). GCA effects were significant for all of the parents in milled grain length and it was significant for some of the parents in other traits. The crosses of Deilmani × IRFAON-215 exhibited significant SCA for GEI. The positive mean of heterosis was observed for CGW. The highest maximum values of heterosis were revealed in GEI, flowed by GSH, MGW and CGW. GCA and MPV were significantly and positively correlated together for all traits. | Sharifi Peyman Dehghani Hamid Mumeni Ali Moghaddam Mohammad | 2009 | Agricultural Sciences in China2009，8，8： | 3 |
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