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1728篇 您的检索式:作者名="MEHRA"
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1A randomized controlled trial of omega-3 fatty acids in dry eye syndrome显示文摘AIM:To evaluate the role of dietary supplementation of omega-3 fatty acids in dry eye syndrome.METHODS:A prospective,interventional,placebo controlled,double blind randomized trial was done at two referral eye centers.Two hundred and sixty-four eyes of patients with dry eye were randomized to receive one capsule(500mg)two times a day containing 325mg EPA and 175mg DHA for 3 months(omega-3 group).The omega-3 group was compared to a group of patients(n=254)who received a placebo(placebo group).There were 4 patient visits(at baseline,1 month,2 months and3 months).On each visit,recording of corrected distance visual acuity(CDVA),slit lamp examination and questionnaire based symptom evaluation and scoring was done.A symptomatic score of 0-6 was mild,6.1-12moderate and 12.1-18 severe dry eye.Response to intervention was monitored by routine tear function tests like Schirmer I test,tear film break-up time(TBUT),Rose Bengal staining and most notably,conjunctival impression cytology.RESULTS:Sixty-five percent of patients in the omega-3group and 33%of patients in placebo group had significant improvement in symptoms at 3 months(P=0.005).There was a significant change in both Schirmer's test value and TBUT values in the omega-3group(P<0.001),both comparisons.However,there was a larger drift in TBUT values in omega-3 than the placebo group,in comparison to Schirmer's test values.The mean TBUT score was 2.54±2.34 in the omega-3group and 0.13±0.16 in placebo group,respectively.The mean reduction in symptom score in omega-3 group was 2.02±0.96 as compared to 0.48±0.22 in placebogroup(P<0.001).Despite a slight increase mean score,the Schirmer scores did not correlate well with symptomatic improvement.CONCLUSION:Omega-3 fatty acids have a definite role for dry eye syndrome.The benefit seems to be more marked in conditions such as blepharitis and meibomian gland disease.The role of omega fatty acids in tear production and secretion needs further evaluation.Rahul Bhargava Prachi Kumar Manjushrii Kumar Namrata Mehra Anurag Mishra 2013International Journal of Ophthalmology(English edition)2013,6,6:14
2在稍尖的巨大的肺的栓塞的机械故障和 thrombolysis : 未来的试用显示文摘 AIM: To assess role of combined modality of mechanical fragmentation and intralesional thrombolysis in patients with massive pulmonary embolism presenting subacutely. METHODS: Eight of 70 patients presenting in tertiary care centre of North India with massive pulmonary embolism within 4 years had subacute presentation (symptom onset more than 2 wk). These patients were subjected to pulmonary angiography with intention to treat basis via mechanical breakdown and intra lesional thrombolysis. Mechanical breakdown of embolus was accomplished with 5-F multipurpose catheter to reestablish flow, followed by intralesional infusion of urokinase (4400 IU/kg over 10 min followed by 4400 IU/kg per hour over 24 h). RESULTS: Eight patients, mean age 47.77±12.20 years presented with subacute pulmonary embolism (mean duration of symptoms 2.4 wk). At presentation, mean heart rate, shock index, miller score and mean pulmonary pressures were 101.5±15.2/min, 0.995±0.156, 23.87±3.76 and 37.62±6.67 mmHg which reduced to 91.5±12.2/min (P=0.0325), 0.789±0.139 (P=0.0019), 5.87±1.73 (P=0.0000004) and 27.75±8.66 mmHg (P=0.0003) post procedurally. Mean BP improved from 80.00±3.09 mmHg to 90.58±9.13 mmHg (P=0.0100) post procedurally. Minor complications in the form of local hematoma-minor hematoma in 1 (12.5%), and pseudoaneurysm (due to femoral artery puncture) in 1 (12.5 %) patient were seen. At 30 d and 6 mo follow up survival rate was 100% and all the patients were asymptomatic and in New York Heart Association class 1. CONCLUSION: Combined modality of mechanical fragmentation and intralesional thrombolysis appears to be a promising alternative to high risk surgical procedures in patients with subacute massive pulmonary embolism.Bishav Mohan Shibba Takkar Chhabra Naved Aslam Gurpreet Singh Wander Naresh Kumar Sood Sumati Verma Anil Kumar Mehra Sarit Sharma 2013World Journal of Cardiology2013,5,5:5
3Methylenetetrahydrofolate reductase C677T genotype affects promoter methylation of tumor-specific genes in sporadic colorectal cancer through an interaction with folate/vitamin B_(12) status显示文摘AIM:To evaluate joint effects of Methylentetra-hydrofolate reductase(MTHFR) C677T genotypes,and serum folate/vitamin B12 concentrations on promoter methylation of tumor-associated genes among Iranian colorectal cancer patients. METHODS:We examined the associations between MTHFR C677T genotype,and promoter methylation of P16,hMLH1,and hMSH2 tumor-related genes among151 sporadic colorectal cancer patients. The promoter methylation of tumor-related genes was determined by methylation-specific PCR. Eighty six patients from whom fresh tumor samples were obtained and 81 controls were also examined for serum folate and vitamin B12 concentrations by a commercial radioimmunoassay kit. RESULTS:We found 29.1% of cases had tumors with at least one methylated gene promoter. In case-case comparison,we did not find a significant association between methylation in tumors and any single genotype. However,in comparison to controls with the CC genotype,an increased risk of tumor methylation was associated with the CT genotype(OR = 2.5;95% CI,1.1-5.6) . In case-case comparisons,folate/vitamin B12 levels were positively associated with tumor methylation. Adjusted odds ratios for tumor methylation in cases with high(above median) versus low(below median) serum folate/vitamin B12 levels were 4.9(95% CI,1.4-17.7) ,and 3.9(95% CI,1.1-13.9) ,respectively. The frequency of methylated tumors was significantly higher in high methyl donor than low methyl donor group,especially in those with MTHFR CT(P = 0.01) ,and CT/TT(P = 0.002) genotypes,but not in those with the CC genotype(P = 1.0) . CONCLUSION:We conclude that high concentrations of serum folate/vitamin B12 levels are associated with the risk of promoter methylation in tumor-specific genes,and this relationship is modified by MTHFR C677T genotypes.Pooneh Mokarram Fakhraddin Naghibalhossaini Mehdi Saberi Firoozi Seyed Vahid Hosseini Ahmad Izadpanah Heshmetalah Salahi Seyed Ali Malek-Hosseini Abdoulrasool Talei Mehra Mojallal 2008World Journal of Gastroenterology2008,14,23:5
4管状囊性肾细胞癌是一种具有特征性基因组特点、独特的临床病理实体显示文摘管状囊性肾细胞癌是新近WHO肾肿瘤分类中一种特殊类型的肿瘤实体。据文献报道,管状囊性肾细胞癌与其他类型的肾细胞癌的关系密切,包括乳头状肾细胞癌、延胡索酸水化酶缺陷性肾细胞癌,以及其他具有多少不等管状囊性结构特征的癌。目前,文献报道的上述肿瘤的组织学分子特征并不一致。Sarungbam J Mehra R Tomlins S A 魏建国(摘译) 袁晓露(审校) 2019临床与实验病理学杂志2019,35,7:3
5Mood fluctuations, projection bias, and volatility of equity prices显示文摘Rajnish Mehra Raaj Sah 2002Journal of Economic Dynamics and Control2002,,5:3
6游走脾:手术之謎显示文摘Wandering spleen,also referred to as‘ptotic spleen’,is a rare clinical condition characterized by splenicmigration form its normal left hypochondrial position to any other abdominal or pelvic position.Among themultifactorial etiologies proposed,laxity of the spleen’s primary supporting ligaments is themost agreed-upon hypothesis.We present one rare case of wandering spleen in an 11-year-old girl who presented with recurrent abdominal pain with no localizing features.Her abdominal examination revealed an intra-abdominal left iliac fossa lump with restrictedmobility,which was confirmed as a wandering spleen by abdominal sonography and contrast-enhanced computed tomography.Intraoperatively,an infarcted spleen was encountered with tortuous,elongated,torsional splenic pedicle and a single dense adhesive band with descending colon.Splenectomy was offered to the patient.Post-operatively,the patient is healthy and symptom free at one-year follow-up.The rare clinical diagnosis of this condition,particularly in the paediatric age-group,makes it an enigma for the surgical world.Ashok Kumar Puranik Rohit Mehra Sushila Chauhan Rahul Pandey 2017Gastroenterology Report2017,5,3:2
7Nasopharyngeal carcinoma in the Northeastern states of India显示文摘Nasopharyngeal cancer (NPC) is a rare disease in most parts of the world, except for Southeast Asia, some parts of North Africa and the Arctic. It is mostly seen in people of Chinese origin. In India, NPC is also rare, except for the Hill States of Northeast India, particularly Nagaland, Manipur, and Mizoram. The striking feature of NPC in Northeast India is that the incidence ranges over the complete spectrum from the lowest (as 0.5/100 000 to 2.0/100 000 among Caucasoid) to the highest (as ~20/100 000 among Cantonese/Zhongshan dialect Chinese). The age-adjusted rate of NPC in Kohima district of Nagaland State is 19.4/100 000, which is among the highest recorded rates. By contrast, in Assam, one of the so-called Hill States but not itself a hilly state, NPC is much less common. The Northeastern region is distinguished by a preponderance of the Tibeto-Burman languages and by variable mongoloid features among peoples of the region. The nature of the migratory populations who are presumed to be bearers of the mongoloid risk is unknown, but these NPC occurrence features provide an outstanding opportunity for NPC risk investigation, such as that of the hypothesis of Wee et al. for westward displacement of Chinese aborigines following the last glacial maximum.Amal Chandra Kataki Malcolm J. Simons Ashok Kumar Das Kalpana Sharma Narinder Kumar Mehra 2011Chinese Journal of Cancer2011,30,2:2
8Top Management-Team Diversity and Firm Performance: Examining the Role of Cognitions显示文摘Martin Kilduff Reinhard Angelmar Ajay Mehra 2000Organization Science2000,,1:2
9Multi-Mode Switching in Flight Control显示文摘Jovan D Boskovic Raman K Mehra 2000Piscataway NJ Institute of Electrical and Electronic Engineers2000,6,2:2
10Processing of RZ5-10wt%TiC in-situ magnesium matrix composite显示文摘This paper discusses processing in-situ RZ5-10wt%TiC composite fabricated by self-propagating high temperature(S.H.S)method where RZ5 Mg alloy was the matrix and TiC as reinforcement.The purpose of this study is to improve the mechanical properties and wear resistance of the RZ5 alloy used in aerospace application by adding TiC particles.The wear test was performed using pin-on-disc apparatus against 600 grit abrasive paper by varying the sliding distance and applied load.The composite was microstructurally characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM)and energy dispersive X-ray spectroscopy(EDS).The results exhibited that the tensile strength and hardness of the RZ5-10wt%TiC composite increased considerably while grain size decreased compare to the unreinforced RZ5 alloy.The SEM based fractography indicated mixed mode(quasi-cleavage and ductile feature)failure of the composite.Deepak Mehra M.M.Mahapatra S.P.Harsha 2018Journal of Magnesium and Alloys2018,6,1:2
11Left ventricular pseudoaneurysm: A case report and review of the literature显示文摘Left ventricular(LV) pseudoaneurysm is a rare complication that is reported in less than 0.1% of all patients with myocardial infarction. It is the result of cardiac rupture contained by the pericardium and is characterized by the absence of myocardial tissue in its wall unlike true aneurysm which involves full thickness of the cardiac wall. The clinical presentation of these patients is nonspecific, making the diagnosis challenging. Transthoracic echocardiogram and cardiac magnetic resonance imaging are the noninvasive modalities whereas coronary arteriography and left ventriculography are invasive modalities used for the diagnosis. As this condition is lethal, prompt diagnosis and timely management is vital.Lavanya Alapati W Randolph Chitwood John Cahill Sanjay Mehra Assad Movahed 2014World Journal of Clinical Cases2014,2,4:2
12Synthesis of nanocrystalline ZnO powder via sol–gel route for dye-sensitized solar cells显示文摘Seema Rani Poonam Suri P.K. Shishodia R.M. Mehra 2008Solar Energy Materials and Solar Cells2008,,12:2
13Approaches to adaptive filtering显示文摘MEHRA R K 2000IEEE Transactions on Automatic Control2000,17,4:1
14Usefulness of the combined in- dex of systolic and diastolic myocardial performance to identify cardiac allograft rejection 显示文摘Vivekananthan K Kalapura T Mehra M 2002Am J Cardiol2002,90,5:1
15Robust adaptive variable structure control of spacecraft under control input saturation 显示文摘BOSKOVIC J D LI S M MEHRA R K 2001Journal of Guidance Control and Dynamics2001,24,1:1
16Mood fluctuatios,Projection Bias,and Volatility of Equity Prices显示文摘Mehra Rajnish and Raaj Sah 2002Journal of Economic Dynamic and Control2002,,26:1
17Comparison of standard and irrigated radiofrequency ablation in the canine ventricle显示文摘Skrumeda LL Mehra R 1998J Cardiovasc Electrophysiol1998,9,:1
18A Multiple Model Adaptive Flight Control Scheme for Accommodation of Actuator Failures 显示文摘Boskovic J D Mehra R K 2002Journal of Guidance Control and Dynamics2002,25,4:1
19A Mycobacterium tuberculosis sigma factor network responds to cell envelope damage by the promising anti-mycobaeterial thioridazine显示文摘Dutta NK Mehra S Kaushal D 2010PLoS One2010,5,10:1
20Gene expression profiles and B-type natriuretic peptide elevation in heart transplantation: more than a hemodynamic marker显示文摘Mehra MR Uber PA Walther D 2006Circulation2006,114,1:1
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