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Thermo-Protective Role of 28-Homobrassinolide in <i>Brassica juncea</i>Plants

American Journal of Plant Sciences 2014年第15期5卷 2431-2439页

作者： Sirhindi Geetika kaur Harpreet Bhardwaj Renu kaur nirmal spal Sharma Poonam Department of Botanical and Environmental Sciences GNDU Amritsar India Department of Botany Punjabi University Patiala India

The present work was undertaken to study the effects of 28-homobrassinolide on growth, stress markers, antioxidative enzyme [superoxide dismutase (EC 1.***.1.1), guaiacol peroxidase (EC 1.***.1.7), catalase (EC 1.***.1.6) ] activities and protein content in 10 days old seedlings of Brassica juncea L. treated with different degrees (4°C, 44°C) of temperature. 28-homobrassinolide at 10-9 M concentration lowered temperature stress. Different degrees of temperature treatment alone decreased the enzyme activities and protein concentration of seedlings. However, pre-sowing treatments of 28-homobrassinolide lowered the temperature stress and enhanced the contents of MDA and proline, activities of enzymes and protein concentration of seedlings.

关键词： Antioxidative Enzymes 28-Homobrassinolide Brassinosteroids Temperature Stress Lipid Peroxidation Guaiacol Peroxidase Catalase

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Plant Nutrient Status during Boll Development and Seed Cotton Yield as Affected by Foliar Application of Different Sources of Potassium

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American Journal of Plant Sciences 2013年第7期4卷 1409-1417页

作者： nirmal kaur Sekhon Chandra Bhushan Singh Department of Soil Science Punjab Agricultural University Ludhiana India.

Bt cotton hybrids require large supply of metabolites to support their greater boll load and commonly suffer from premature leaf senescence. A field experiment was conducted to study the nutritional status of Bt cotton leaves during boll development stage and to evaluate the most profitable source of foliar fertilizers. Treatments included basal application of 0 and 60 kg·K2O·ha-1 as muriate of potash (MOP) in main plots and foliar spray treatments viz: 4 & 6 sprays of 2% potassium nitrate (Multi-K, 13-00-45), 4 & 6 sprays of NPK Blend (Polyfed, 19-19-19), 4 sprays of MOP, 4 sprays of MOP + urea (to supply same amount of N & K as in potassium nitrate) and unsprayed control in sub plots. The results revealed that only N and K contents of premature senesced leaves were below the sufficiency range for cotton sufficient levels of P, Fe, Mn, Zn and Cu were observed. Though the concentrations of N and K in both the petiole and leaf blade initially improved with foliar spray, N content declined below the unsprayed control at later stages. Basal application of MOP increased seed cotton yield by 19%. Four foliar sprays of KNO3, NPK, MOP and MOP + urea recorded yield increase in seed cotton yield of 22.8%, 22.4%, 18.5% and 24.5%, respectively over unsprayed control. Six sprays of KNO3 and NPK had no yield advantage over four sprays and rather proved economically less viable.

关键词： Cotton Foliar Fertilizers Boll Development Potassium Nitrogen

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Isolation of Pleurotus fl orida derived acetylcholinesterase inhibitor for the treatment of cognitive dysfunction in mice

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Food Science and Human Wellness 2021年第4期10卷 490-496页

作者： Kudrat Randhawa Varinder Singh Sanimardeep kaur Ravinder kaur Suresh Kumar Richa Shri Department of Pharmaceutical Sciences and Drug Research Punjabi UniversityPatiala 147002India Chitkara College of Pharmacy Chitkara UniversityPunjabIndia

Our earlier work showed that hydromethanol extract(HME)of Pleurotus fl orida had antioxidant and anticholinesterase *** study aimed at isolating the constituent responsible for the *** was subjected to bioactivity guided fractionation using in vitro anti-acetylcholinesterase(Ellman method)and antioxidant(DPPH scavenging assay).The most active constituent was evaluated in vivo employing ***(STZ)induced dementia in *** water maze test was used for evaluating memory,followed by biochemical estimations and histopathological *** guided fractionation resulted in isolation of resveratrol(identifi ed by IR,NMR and MS)and its content in *** orida fruiting bodies was 0.0098%(m/m,by a validated TLC densitometric method).It improved STZ induced dementia and neurodegeneration in mice by reducing brain acetylcholinesterase action and oxidative *** observed effects might be the presence of *** results further endorse that *** orida derived resveratrol can be a promising therapy for Alzheimer’s disease.

关键词： Acetylcholinesterase inhibitor Alzheimer’s disease Mushrooms Pleurotus fl orida Resveratrol

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Randomized, double-blinded, placebo-controlled trial evaluating simethicone pretreatment with bowel preparation during colonoscopy

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World Journal of Gastrointestinal Endoscopy 2019年第6期11卷 413-423页

作者： Mohit Rishi Jaskarin kaur Mark Ulanja Nicholas Manasewitsch Molly Svendsen Abubaker Abdalla Shashank Vemala Julie Kewanyama Karmjit Singh nirmal Singh Nageshwara Gullapalli Eric Osgard Department of Internal Medicine University of NevadaReno School of MedicineRenown Regional Medical CenterRenoNV 89502 United States Gastroenterology Consultants LTDRenoNV 89502United States Aureus Univeristy School of Medicine Oranjestad 31CAruba American International Medical University Gross Islet 7610Saint Lucia

BACKGROUND The presence of small air bubbles and foam are an impediment to a successful colonoscopy. They impair an endoscopist’s view and diminish the diagnostic accuracy of the study. This has been particularly noted to be of concern with the switch to lower volume polyethylene glycol (PEG) and bisacodyl combination preparation. AIM To evaluate the effect of oral simethicone addition to bowel preparation on intraluminal bubbles reduction during colonoscopy. METHODS Described is a prospective, randomized, multi-center, double-blinded, placebocontrolled study to evaluate the use of premixed simethicone formulation with split-regimen, low-volume PEG-bisacodyl combination bowel preparation for 168 outpatients undergoing screening, surveillance, and diagnostic colonoscopies. Primary outcome includes evaluation of bubbles during colonoscopy graded using the Intraluminal Bubbles Scale. Secondary outcomes include evaluation of the Boston Bowel Preparation Scale (BBPS), total number of polyps, polyp size differentiation, polyp laterality, adenoma detection, mass detection, cecal insertion time, withdrawal time, and patient-reported adverse events. RESULTS Higher Intraluminal Bubbles grades III and IV (less than 75% of the mucosa cleared of bubbles/foam requiring intervention with simethicone infused wash) were detected in the placebo group [Simethicone n = 4/84 vs Placebo n = 20/84 (P = 0.007)]. BBPS total score was 7.42 [standard deviation (SD)=± 1.51] in the simethicone group and 7.28 (SD =± 1.44) in the placebo group (P = 0.542) from a total of 9. Significantly higher number of adenomas were detected in the simethicone group (P = 0.001). CONCLUSION The addition of simethicone to bowel preparation is well advised for its antifoaming properties. The results of this study suggest that addition of oral simethicone can improve bowel wall visibility.

关键词： Simethicone Intraluminal bubbles Colonoscopy Adenoma detection

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