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| 1 | Protective effect of naringenin on acetic acid-induced ulcerative colitis in rats显示文摘AIM:To evaluate the ameliorative effect of naringenin(NG)during ulcerative colitis(UC)in rats.METHODS:Rats were treated with three different doses(25,50 and 100 mg/kg per day)of NG and a single dose of mesalazine(MES,300 mg/kg per day)for seven days prior to ulcerative colitis induction by4%acetic acid(AA).Twenty four hours after AA rectal administration,animals were scarified and the colonic tissues were dissected.Colonic mucus content was estimated using Alcian blue dye binding technique.In colon tissues,levels of total glutathione sulphadryls(T-GSH),non-protein sulphadryls(NP-SH)and thiobarbituric acid reactive substances(TBARS)were evaluated.The activities of the antioxidant enzymes,catalase(CAT)and superoxide dismutase(SOD)were measured.Concentrations of nucleic acids(DNA and RNA)and total protein were also estimated in colon tissues.Colonic levels of tumor necrosis factor-(TNF-),interleukin-1(IL-1),interleukin-6(IL-6),prostaglandin E2(PGE2)and nitric oxide(NO)were estimated.In cross section of colitis tissue the histopathological changes were observed.RESULTS:Colonic mucus content was decreased in AA compared to controls(587.09±65.59 mg/kg vs941.78±68.41 mg/kg,P<0.001).AA administration markedly reduced T-GSH(5.25±0.37 nmol/L vs 3.04±0.24 nmol/L,P<0.01),NP-SH(3.16±0.04 nmol/L vs 2.16±0.30 nmol/L,P<0.01),CAT(6.77±0.40 U/mg vs 3.04±0.2 U/mg,P<0.01)and SOD(3.10±0.11U/mg vs 1.77±0.18 U/mg,P<0.01)while TBARS,TNF-,IL-1,IL-6,PGE2 and NO levels(15.09±3.84nmol/L vs 59.90±16.34 nmol/L,P<0.01;113.56±1.91 pg/mg vs 134.24±4.77 pg/mg,P<0.01;209.20±36.38 pg/mg vs 422.19±31.47 pg/mg,P<0.01;250.83±25.09 pg/mg vs 638.58±115.9 pg/mg,P<0.01;248.19±36.98 pg/mg vs 541.74±58.34 pg/mg,P<0.01 and 81.26±2.98 mmol/g vs 101.90±10.73 mmol/g,P<0.001)were increased in colon of rats with UC compared controls respectively.Naringenin supplementation,significantly and dose dependently increased the colonic mucus content.The elevated TBARS levels were significantly decreased(39.35±5.86nmol/L,P<0.05;26.74±3.17 nmol/L,P<0.01 nmol/L and 17.74±2.69 nmol/L,P<0.01)compared to AA(59.90±16.34 nmol/L)group while the decreased levels of T-GSH and NP-SH and activities of CAT and SOD found increased by NG treatments in dose dependent manner.The decreased values of nucleic acids and total protein in AA group were also significantly(P<0.01)increased in all three NG supplemented groupsrespectively.NG pretreatment inhibited the TNF-levels(123.76±3.76 pg/mg,122.62±3.41 pg/mg and121.51±2.61 pg/mg vs 134.24±4.78 pg/mg,P<0.05)compared to AA group,respectively.Interleukins,IL-1 and IL-6 levels were also decreased in NG50+AA(314.37±16.31 pg/mg and 292.58±23.68 pg/mg,P<0.05)and NG100+AA(416.72±49.62 pg/mg and 407.96±43.87 pg/mg,P<0.05)when compared to AA(352.46±8.58 pg/mg and 638.58±115.98pg/mg)group.Similar decrease(P<0.05)was seen in PGE2and NO values when compared to AA group.The group pretreated with MES,as a reference drug,showed significant(P<0.01)protection against the changes induced in colon tissue by AA administration respectively.CONCLUSION:In present study,NG produced antioxidant and anti-inflammatory effects demonstrating protective effect in inflammatory bowel disease. | Salim S Al-Rejaie Hatem M Abuohashish Maher M Al-Enazi Abdullah H Al-Assaf Mihir Y Parmar Mohammed M Ahmed | 2013 | World Journal of Gastroenterology2013，19，34： | 20 |
| 2 | Computed tomography and patient risk:Facts,perceptions and uncertainties显示文摘Since its introduction in the 1970s, computed tomography(CT) has revolutionized diagnostic decision-making. One of the major concerns associated with the widespread use of CT is the associated increased radiation exposure incurred by patients. The link between ionizing radiation and the subsequent development of neoplasia has been largely based on extrapolating data from studies of survivors of the atomic bombs dropped in Japan in 1945 and on assessments of the increased relative risk of neoplasia in those occupationally exposed to radiation within the nuclear industry. However, the association between exposure to low-dose radiation from diagnostic imaging examinations and oncogenesis remains unclear. With improved technology, significant advances have already been achieved with regards to radiation dose reduction. There are several dose optimization strategies available that may be readily employed including omitting unnecessary images at the ends of acquired series, minimizing the number of phases acquired, and the use of automated exposure control as opposed to fixed tube current techniques. In addition, new image reconstruction techniques that reduce radiation dose have been developed in recent years with promising results. These techniques use iterative reconstruction algorithms to attain diagnostic quality images with reduced image noise at lower radiation doses. | Stephen P Power Fiachra Moloney Maria Twomey Karl James Owen J O'Connor Michael M Maher | 2016 | World Journal of Radiology2016，8，12： | 7 |
| 3 | 澳大利亚初级保健诊所新发腰背痛患者的预后:起始队列研究显示文摘目的估计初级保健诊所内新发腰背痛患者的1年预后,并确定其预后因素。设计1年随访队列研究。地点澳大利亚悉尼的初级保健诊所。参试者初级保健诊所接诊的973例非特异性腰背痛连续患者(平均年龄43.3岁,男性54.8%)。该起始队列患者腰背痛时间不足两周,征集自170名全科医生、理疗师或按摩师诊所。主要评估指标参试者完成基线调查问卷后,分别于初次就诊后6周、3个月和21个月时复查评估。评估内容包括:工作恢复情况、功能恢复情况和疼痛消失情况。潜在预后因素与恢复所需时间的关联性用Cox回归建模分析。结果12个月随访率〉97%。基线时工作能力下降的患者半数在14天内恢复了以前的工作状态(95%可信区间11-17天),83%在3个月内恢复。残疾(中位恢复时间31天,25-37天)和疼痛(中位58天,52-63天)则需要较长的时间才能恢复。只有72%的受试者于基线访问后12个月获得完全康复。高龄、赔偿诉讼、疼痛较重、就诊前腰背痛时间较长、就诊前因疼痛活动减少天数较多、抑郁情绪以及预期危险持续与所需恢复时问较长相关。结论在这个急性腰背痛初级保健患者队列,患者的预后并不像临床指南声称的那样乐观。多数患者的恢复缓慢。近三分之一的患者在腰背痛发作后1年尚未恢复。 | Nicholas Henschke Christopher G Maher Kathryn M Refshauge Robert D Herbert Robert G Cumming Jane Bleasel John York Anurina Das James H McAuley 蓝恭涛(译) | 2008 | 英国医学杂志中文版2008，11，6： | 2 |
| 4 | C-reactive protein and radiographic findings of lower respiratory tract infection in infants显示文摘AIM To evaluate the association between C-reactive protein(CRP) and radiological evidence of lower respiratory tract infection(LRTI) in infants.METHODS All patients aged less than 4 years who presented with suspected lower respiratory tract infection,who received a peri-presentation chest radiograph and CRP blood measurement over an 18-mo period were included in the study.Age,gender,source of referral,CRP,white cell count,neutrophil count along with the patients' symptoms and radiologist's report were recorded.RESULTS Three hundred and eleven patients met the inclusioncriteria.Abnormal chest radiographs were more common in patients with elevated CRP levels(P < 0.01).Radiologic signs of LRTI were identified in 73.7% of chest radiographs when a patient had a CRP level between 50-99 mg/L.CRP levels were a better predictor of positive chest radiograph findings for those aged greater than I year compared to those 1 year or less.CONCLUSION CRP may be used in patients with suspected LRTI diagnosis to select those who are likely to have positive findings on chest radiograph,thus reducing unnecessary chest radiographs. | Maria Twomey Hannah Fleming Fiachra Moloney Kevin P Murphy Lee Crush Siobhan B O’Neill Oisin Flanagan Karl James Conor Bogue Owen J O’Connor Michael M Maher | 2017 | World Journal of Radiology2017，9，4： | 2 |
| 5 | Survival and outcomes for co-infection of chronic hepatitis C with and without cirrhosis and COVID-19: A multicenter retrospective study显示文摘BACKGROUND Chronic liver disease,particularly cirrhosis,is associated with worse outcomes in patients infected with coronavirus disease 2019(COVID-19).AIM To assess outcomes of COVID-19 infection among patients with pre-existing hepatitis C with or without liver cirrhosis.METHODS This multicenter,retrospective cohort study included all cases of confirmed coinfection of severe acute respiratory syndrome coronavirus 2 and chronic hepatitis C with or without liver cirrhosis who were admitted to six hospitals(Al-Sahel Hospital,Al-Matareya Hospital,Al-Ahrar Hospital,Ahmed Maher Teaching Hospital,Al-Gomhoreya Hospital,and the National Hepatology and Tropical Medicine Research Institute)affiliated with the General Organization for Teaching Hospitals and Institutes in Egypt.Patients were recruited from May 1,2020,to July 31,2020.Demographic,laboratory,imaging features,and outcomes were collected.Multivariate regression analysis was performed to detect factors affecting mortality.RESULTS This retrospective cohort study included 125 patients with chronic hepatitis C and COVID-19 co-infection,of which 64(51.20%)had liver cirrhosis and 40(32.00%)died.Fever,cough,dyspnea,and fatigue were the most frequent symptoms in patients with liver cirrhosis.Cough,sore throat,fatigue,myalgia,and diarrhea were significantly more common in patients with liver cirrhosis than in noncirrhotic patients.There was no difference between patients with and without cirrhosis regarding comorbidities.Fifteen patients(23.40%)with liver cirrhosis presented with hepatic encephalopathy.Patients with liver cirrhosis were more likely than non-cirrhotic patients to have combined ground-glass opacities and consolidations in CT chest scans:28(43.75%)vs 4(6.55%),respectively(P value<0.001).These patients also were more likely to have severe COVID-19 infection,compared to patients without liver cirrhosis:29(45.31%)vs 11(18.04%),respectively(P value<0.003).Mortality was higher in patients with liver cirrhosis,compared to those with no cirrhosis:33(51.56%)vs 9(14.75%),respectively(P value<0.001).All patients in Child-Pugh class A recovered and were discharged.Cirrhotic mortality occurred among decompensated patients only.A multivariate regression analysis revealed the following independent factors affecting mortality:Male gender(OR 7.17,95%CI:2.19–23.51;P value=0.001),diabetes mellitus(OR 4.03,95%CI:1.49–10.91;P value=0.006),and liver cirrhosis(OR 1.103,95%CI:1.037–1.282;P value<0.0001).We found no differences in liver function,COVID-19 disease severity,or outcomes between patients who previously received direct-acting antiviral therapy(and achieved sustained virological response)and patients who did not receive this therapy.CONCLUSION Patients with liver cirrhosis are susceptible to higher severity and mortality if infected with COVID-19.Male gender,diabetes mellitus,and liver cirrhosis are independent factors associated with increased mortality risk. | Shimaa Afify Basem Eysa Fatma Abdel Hamid Omnia M Abo-Elazm Mohamed A Edris Rabab Maher Ahmed Abdelhalim Muhammad Mostafa Abdel Ghaffar Dalia A Omran Hend Ibrahim Shousha | 2021 | World Journal of Gastroenterology2021，27，42： | 2 |
| 6 | A prospective feasibility study of sub-millisievert abdominopelvic CT using iterative reconstruction in Crohn’s disease显示文摘 | Siobhan B O’Neill Patrick D Mc Laughlin Lee Crush Owen J O’Connor Sebastian R Mc Williams Orla Craig Anne Marie Mc Garrigle Fiona O’Neill Jackie Bye Max F. Ryan Fergus Shanahan Michael M Maher | 2013 | European Radiology2013，，： | 2 |
| 7 | Inference on trip matrices from observed on link volumes:A Bayesian statistical approach显示文摘 | Maher M J | 1983 | Transportation Research Part B1983，20，： | 2 |
| 8 | Association of central obesity with early Carotid intima-media thickening is independent of that from other risk factors显示文摘 | Maher V O'Dowd M Carey M | 2009 | Int J Obes ( Lond)2009，33，1： | 1 |
| 9 | The Impact of Auditor Tenure on Initial Bond Ratings 显示文摘 | Aaron D Crabtree Duane M Brandon John J Maher | 2006 | Advances in Accounting2006，22，6： | 1 |
| 10 | Development and application of an in vitro model for screening anti-hepatitis B virus therapeutics 显示文摘 | Lampertico P Maher J S Gerber M A | 1991 | Hepatology1991，13，3： | 1 |
| 11 | Deteetion of urinary tract stones at low-radiation-dose CT with z-axis automatic-tube- current modulation :phantom and clinical studies显示文摘 | Kalra M K Maher M M D'Souza R V et 0/ | 2005 | Radiology2005，235，： | 1 |
| 12 | MRI findings are more common in selected patients with acute low back pain than controls显示文摘 | Hancock M Maher C Macaskil P | | 0，，02： | 1 |
| 13 | Molecular evolution of the human enteroviruses:correlation of serotype with VP1 sequence and application to picornavirus classification 显示文摘 | Oberste M S Maher K Flemister M R | 1999 | J Virol1999，73，3： | 1 |
| 14 | Static response of sands reinforced with randomly distributed fibers 显示文摘 | Maher M H Gray D H | 1990 | Journal of Geotechnieai Engineering1990，116，11： | 1 |
| 15 | Case--based Reasoning in Design显示文摘 | Maher M L Gomez A | 1997 | IEEE Expert1997，12，2： | 1 |
| 16 | Algorithms for Logit-based Stochastic User Equilibrium Assignment显示文摘 | MAHER M | 1998 | Transportation Re- search Part B1998，32，8： | 1 |
| 17 | The rise of antioxidant signaling--the evolution and hormetic actions of Nrf2显示文摘 | Maher J Yamamoto M | 2010 | Toxicol Appl Pharmacol2010，244，1： | 1 |
| 18 | Molecular evolution of the human enteroviruses: correlation of serotype with VP1 sequence and application to picornavir- us classification显示文摘 | Oberste M S Maher K Kilpatrick D R Pallansch M A | 1999 | J Virol1999，73，3： | 1 |
| 19 | A bilevel programming approach for trip matrix estimation and traffic control problem with stochastic user equilibrium link flows显示文摘 | Maher M Zhang X | 2001 | Transportation Research B2001，35，： | 1 |
| 20 | A model for synch-ronous collaborative design using CAD and database management显示文摘 | Maher M L Rutherford J H | 1997 | Research in Engineering Design1997，9，7： | 1 |
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