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Nunes JB, Peixoto J, Soares P, Maximo V, Carvalho S, Pinho SS, Vieira AF, Paredes J, Rego AC, Ferreira IL, Gomez-Lazaro M, Sobrinho-Simoes M, Singh KK, Lima J. OXPHOS dysfunction regulates integrin- 1 modifications and enhances cell motility and migration. Hum Mol Genet 2014; 24:1977-90. [DOI: 10.1093/hmg/ddu612] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mridula D, Barnwal P, Gurumayum S, Singh KK. Effect of chemical pretreatment on dehulling parameters of flaxseed (cv. Garima). JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2014; 51:2228-2233. [PMID: 25190888 PMCID: PMC4152490 DOI: 10.1007/s13197-012-0699-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/10/2012] [Accepted: 04/04/2012] [Indexed: 06/03/2023]
Abstract
In the present study, effects of chemical (ethanol, HCl and sulphuric acid) pretreatment on various dehulling parameters of flaxseed (cv. Garima) including yield, hull, hullability, extraction rate and embryo (dehulled flaxseed) recovery were studied. Pretreated flaxseed, at 3.1 to 3.6 % moisture range (p > 0.05) were dehulled for 60 s in a laboratory model rice polisher/dehulling machine at 2,000 rpm followed by aspiration (hull separation) using a laboratory model aspirator. The study revealed that chemical pre-dehulling treatment of flaxseed plays a significant role in the embryo recovery of flaxseed. Both ethanol and HCl pre-dehulling treatment enhanced but sulphuric acid pretreatment reduced the embryo recovery of flaxseed. Moreover, HCL and Sulphuric acid deteriorated the quality of hull obtained during dehulling, hence may not be considered for flaxseed dehulling. The study showed the maximum embryo recovery from ethanol pretreated flaxseed, hence ethanol pre-dehulling treatment with 2 h tempering time may be considered for effective flaxseed dehulling.
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Pathak SK, Tripathi SC, Singh KK, Mahtele AK, Kumar M, Gandhi PM. Removal of americium from aqueous nitrate solutions by sorption onto PC88A-impregnated macroporous polymeric beads. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:464-473. [PMID: 24997262 DOI: 10.1016/j.jhazmat.2014.06.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/15/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
The removal of Am (III) ions from aqueous solutions was studied by solid-liquid extraction using indigenously synthesized Extractant Impregnated Macroporous Polymeric Beads (EIMPBs). These beads were prepared by an in situ phase inversion method using polyethersulfone (PES) as base polymer and 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester (PC88A) as an extractant. The synthesized EIMPBs were characterized by FTIR, TGA and SEM techniques. The batch equilibration study using these beads for the uptake of Am (III) was carried out as a function of parameters, like pH, equilibration time, Am (III) concentration, etc. The blank polymeric beads, without PC88A, have shown negligible sorption of Am (III) under the experimental conditions. The experimental data on the sorption behavior of Am (III) on the polymeric beads fitted well in the pseudo-second-order kinetics model. The synthesized polymeric beads exhibited very good sorption capacity for Am (III) at pH 3. The reusability of the beads was also ascertained by repetitive sorption/desorption of Am (III) up to 10 cycles of operation, without any significant change in their sorption characteristics.
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Balasubramanian S, Devi A, Singh KK, Bosco SJD, Mohite AM. Application of Glass Transition in Food Processing. Crit Rev Food Sci Nutr 2014; 56:919-36. [DOI: 10.1080/10408398.2012.734343] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Darekar M, Singh KK, Shenoy KT, Kundu G, Rao H, Ghosh SK. Numerical simulations to evaluate basic geometrical shapes as headers for equal liquid flow distribution. ASIA-PAC J CHEM ENG 2014. [DOI: 10.1002/apj.1814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Teodorof C, Divakar S, Soontornniyomkij B, Achim CL, Kaul M, Singh KK. Intracellular mannose binding lectin mediates subcellular trafficking of HIV-1 gp120 in neurons. Neurobiol Dis 2014; 69:54-64. [PMID: 24825317 DOI: 10.1016/j.nbd.2014.05.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 04/26/2014] [Accepted: 05/02/2014] [Indexed: 01/19/2023] Open
Abstract
Human immunodeficiency virus-1 (HIV-1) enters the brain early during infection and leads to severe neuronal damage and central nervous system impairment. HIV-1 envelope glycoprotein 120 (gp120), a neurotoxin, undergoes intracellular trafficking and transport across neurons; however mechanisms of gp120 trafficking in neurons are unclear. Our results show that mannose binding lectin (MBL) that binds to the N-linked mannose residues on gp120, participates in intravesicular packaging of gp120 in neuronal subcellular organelles and also in subcellular trafficking of these vesicles in neuronal cells. Perinuclear MBL:gp120 vesicular complexes were observed and MBL facilitated the subcellular trafficking of gp120 via the endoplasmic reticulum (ER) and Golgi vesicles. The functional carbohydrate recognition domain of MBL was required for perinuclear organization, distribution and subcellular trafficking of MBL:gp120 vesicular complexes. Nocodazole, an agent that depolymerizes the microtubule network, abolished the trafficking of MBL:gp120 vesicles, suggesting that these vesicular complexes were transported along the microtubule network. Live cell imaging confirmed the association of the MBL:gp120 complexes with dynamic subcellular vesicles that underwent trafficking in neuronal soma and along the neurites. Thus, our findings suggest that intracellular MBL mediates subcellular trafficking and transport of viral glycoproteins in a microtubule-dependent mechanism in the neurons.
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Sen N, Darekar M, Singh KK, Mukhopadhyay S, Shenoy KT, Ghosh SK. Solvent Extraction and Stripping Studies in Microchannels with TBP Nitric Acid System. SOLVENT EXTRACTION AND ION EXCHANGE 2014. [DOI: 10.1080/07366299.2013.850290] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ganesan AV, Kumar H, Swaminathan S, Singh KK, Joy RA, Sood N, Gokhale T, Mittal RK. Analysis of MEMS-Based Microneedles for Blood Monitoring. BIONANOSCIENCE 2014. [DOI: 10.1007/s12668-013-0122-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Bhoi R, Sen N, Singh KK, Mahajani SM, Shenoy KT, Rao H, Ghosh SK. Transesterification of Sunflower Oil in Microreactors. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2014. [DOI: 10.1515/ijcre-2013-0105] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
KOH catalyzed transesterification of sunflower oil using methanol has been studied in different types of microreactors. All the microreactors consist of a serpentine microchannel etched in a glass chip but have different types of microfluidic junctions (dispersing devices). First microreactor consists of a T-type microfluidic junction. The second microreactor has a †-type microfluidic junction. The third microreactor uses a split and recombine micromixer to generate the dispersion. Effects of temperature, flow rate, and feed molar ratio on the conversion of triglyceride (TG) have been studied. In some cases, conversion of TG is not found to change monotonically with change in flow rate. An attempt has been made to explain this seemingly unusual trend, and the explanations are substantiated using the liquid–liquid two-phase flow patterns observed using a high-speed image acquisition system. The results from the experiments conducted in this study indicate that it is possible to get very high TG conversion (>90%) with residence time less than a minute.
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Darling HS, Marwah V, Rajput AK, Varma PP, Singh KK. Low dose methylprednisolone induced bradycardia. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2013; 61:920-922. [PMID: 24968553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Methylprednisolone induced arrhythmias, especially bradycardia, are well known. Most of the available reports suggest the occurrence of these arrhythmias with high dose intravenous therapy. We, hereby report a case of low dose methylprednisolone induced bradycardia.
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Pathak SK, Tripathi SC, Singh KK, Mahtele AK, Dwivedi C, Juby KA, Kumar M, Gandhi PM, Bajaj PN. PC-88A – impregnated polymeric beads: Preparation, characterization and
application for extraction of Pu(IV) from nitric acid medium. ACTA ACUST UNITED AC 2013. [DOI: 10.1524/ract.2013.2076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
The extractant-impregnated polymeric beads (EIPBs), containing polyethersulfone as base polymer and 2-ethylhexyl phosphonic
acid mono-2-ethylhexyl ester (PC-88A) as an extractant, were prepared by phase inversion method. These EIPBs were characterized
by FTIR, TGA and SEM techniques. The beads were found to have excellent acid stability, since these did not exhibit any
structural deformation or loss of the extractant into aqueous nitric acid solution (6 M), for a period of
15 d. The feasibility of Pu(IV) extraction, using these beads, from nitric acid solution was tested by batch
equilibration method. Parametric dependence of Pu(IV) extraction on experimental variables, like strength of nitric acid,
equilibration time, Pu(IV) concentration, etc., was investigated. The present study also addressed the important
practical issues, like maximum loading capacity and the reusability of these beads. Under optimized conditions, equilibrium
capacity and maximum loading capacity for Pu(IV) were found to be 2.03 and 7.50 mg per gram of the swollen beads,
respectively. The reusability of the beads was also ascertained by repetitive extraction-stripping of Pu(IV) up to 7 cycles of
operation, without significant change in their extraction performance. The extraction of Pu(IV) by the blank polymeric beads
was observed to be almost negligible, under the similar experimental conditions.
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Balasubramanian S, Singh KK, Patil RT, Onkar KK. Quality evaluation of millet-soy blended extrudates formulated through linear programming. Journal of Food Science and Technology 2013; 49:450-8. [PMID: 23904653 DOI: 10.1007/s13197-011-0297-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/25/2010] [Accepted: 08/26/2010] [Indexed: 10/18/2022]
Abstract
Whole pearl millet, finger millet and decorticated soy bean blended (millet soy) extrudates formulations were designed using a linear programming (LP) model to minimize the total cost of the finished product. LP formulated composite flour was extruded through twin screw food extruder at different feed rate (6.5-13.5 kg/h), screw speed (200-350 rpm, constant feed moisture (14% wb), barrel temperature (120 °C) and cutter speed (15 rpm). The physical, functional, textural and pasting characteristics of extrudates were examined and their responses were studied. Expansion index (2.31) and sectional expansion index (5.39) was found to be was found maximum for feed rate and screw speed combination 9.5 kg/h and 250 rpm. However, density (0.25 × 10(-3) g/mm(3)) was maximum for 9.5 kg/h and 300 rpm combination. Maximum color change (10.32) was found for 9.5 kg/h feed rate and 200 rpm screw speed. The lower hardness was obtained for the samples extruded at lowest feed rate (6.5 kg/h) for all screw speed and feed rate at 9.5 kg/h for 300-350 rpm screw speed. Peak viscosity decreases with all screw speed of 9.5 kg/h feed rate.
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Das N, Singh KK, Maiti HS. Preparation of alumina membranes for micro- and ultrafiltration applications. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/096797802225003965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Saxena SN, Sharma YK, Rathore SS, Singh KK, Barnwal P, Saxena R, Upadhyaya P, Anwer MM. Effect of cryogenic grinding on volatile oil, oleoresin content and anti-oxidant properties of coriander (Coriandrum sativum L.) genotypes. Journal of Food Science and Technology 2013. [DOI: 10.1007/s13197-013-1004-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sajid MS, Craciunas L, Singh KK, Sains P, Baig MK. Open transinguinal preperitoneal mesh repair of inguinal hernia: a targeted systematic review and meta-analysis of published randomized controlled trials. Gastroenterol Rep (Oxf) 2013; 1:127-37. [PMID: 24759818 PMCID: PMC3938008 DOI: 10.1093/gastro/got002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE The objective of this article is to systematically analyse the randomized, controlled trials comparing transinguinal preperitoneal (TIPP) and Lichtenstein repair (LR) for inguinal hernia. METHODS Randomized, controlled trials comparing TIPP vs LR were analysed systematically using RevMan® and combined outcomes were expressed as risk ratio (RR) and standardized mean difference. RESULTS Twelve randomized trials evaluating 1437 patients were retrieved from the electronic databases. There were 714 patients in the TIPP repair group and 723 patients in the LR group. There was significant heterogeneity among trials (P < 0.0001). Therefore, in the random effects model, TIPP repair was associated with a reduced risk of developing chronic groin pain (RR, 0.48; 95% CI, 0.26, 0.89; z = 2.33; P < 0.02) without influencing the incidence of inguinal hernia recurrence (RR, 0.18; 95% CI, 0.36, 1.83; z = 0.51; P = 0.61). Risk of developing postoperative complications and moderate-to-severe postoperative pain was similar following TIPP repair and LR. In addition, duration of operation was statistically similar in both groups. CONCLUSION TIPP repair for inguinal hernia is associated with lower risk of developing chronic groin pain. It is comparable with LR in terms of risk of hernia recurrence, postoperative complications, duration of operation and intensity of postoperative pain.
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Singh KK. An emerging role for Wnt and GSK3 signaling pathways in schizophrenia. Clin Genet 2013; 83:511-7. [PMID: 23379509 DOI: 10.1111/cge.12111] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 01/21/2013] [Accepted: 01/21/2013] [Indexed: 01/04/2023]
Abstract
Schizophrenia is a disabling illness with limited treatment options. The underlying pathophysiology remains unknown, partially due to its heterogeneous nature, and a lack of understanding of the biological functions of genetic risk factors. Several signaling pathways have been implicated, however, with the varying degrees of support. In this article, I will focus on the converging evidence supporting a prominent role for Wnt and glycogen synthase kinase 3 (GSK3) signaling in the biological bases of schizophrenia. This includes current pharmacological therapies that target GSK3, animal model and cell-based studies, and recent human genetic findings that implicate Wnt and GSK3 signaling.
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Sajid MS, Craciunas L, Sains P, Singh KK, Baig MK. Use of antibacterial sutures for skin closure in controlling surgical site infections: a systematic review of published randomized, controlled trials. Gastroenterol Rep (Oxf) 2013; 1:42-50. [PMID: 24759666 PMCID: PMC3941439 DOI: 10.1093/gastro/got003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objective: The objective of this article is to systematically analyse the randomized, controlled trials that compare the use of antibacterial sutures (ABS) for skin closure in controlling surgical site infections. Methods: Randomized, controlled trials on surgical patients comparing the use of ABS for skin closure in controlling the surgical site infections were analysed systematically using RevMan® and combined outcomes were expressed as odds ratios (OR) and standardized mean differences (SMD). Results: Seven randomized, controlled trials evaluating 1631 patients were retrieved from electronic databases. There were 760 patients in the ABS group and 871 patients in the simple suture group. There was moderate heterogeneity among trials (Tau2 = 0.12; chi2 = 8.40, df = 6 [P < 0.01]; I2 = 29%). Therefore in the random-effects model, the use of ABS for skin closure in surgical patients was associated with a reduced risk of developing surgical site infections (OR, 0.16; 95% CI, 0.37, 0.99; z = 2.02; P < 0.04) and postoperative complications (OR, 0.56; 95% CI, 0.32, 0.98 z = 2.04; P = 0.04). The durations of operation and lengths of hospital stay were similar following the use of ABS and SS for skin closure in patients undergoing various surgical procedures. Conclusion: Use of ABS for skin closure in surgical patients is effective in reducing the risk of surgical site infection and postoperative complications. ABS is comparable with SS in terms of length of hospital stay and duration of operation.
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Ruhela R, Tomar BS, Singh KK, Sharma JN, Kumar M, Bajaj PN, Adya VC, Seshagiri TK, Hubli RC, Suri AK. Stability studies of N,N,N´,N´-tetra-(2-ethylhexyl) dithiodiglycolamide (DTDGA). RADIOCHIM ACTA 2012. [DOI: 10.1524/ract.2013.2008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
DTDGA solvent system was evaluated for hydrolytic and radiolytic stabilities to ascertain its application in separation and recovery of palladium from High Level Liquid Waste (HLW) solutions. Hydrolysis of DTDGA solvent system was not observed when it was kept in contact with 3.0 M nitric acid solution for two weeks. Moreover, contrary to other ‘S’ donor extractants used for the said purpose, the oxidation of thioetheric sulphur to sulphoxide or sulphones was also not observed. On the other hand, radiolysis of DTDGA solvent system was notably observed, which was found to increase with increase in absorbed dose. At gamma radiation dose of 0.2 MGy, no significant loss of DTDGA was observed. Aliphatic diluent namely n-dodecane was found to have sensitization effect on degradation of DTDGA. The degradation products were identified by GC-MS, the major ones were found to be formed by cleavage of thioetheric and amidic bonds of DTDGA molecule. The liquid–liquid extraction studies of palladium with irradiated solvent indicate that there was no significant change in D
Pd up to an absorbed dose of 0.2 MGy above which it decreases gradually. Further, the radiolysis does not affect the stripping behavior of palladium. Extraction studies of Simulated High Level Liquid Waste (SHLW) elements with irradiated solvent system showed that, except palladium, any other element is hardly extracted thus retaining its remarkable selectivity.
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Balasubramanian S, Gupta MK, Singh KK. Cryogenics and its application with reference to spice grinding: a review. Crit Rev Food Sci Nutr 2012; 52:781-94. [PMID: 22698269 DOI: 10.1080/10408398.2010.509552] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Cryogenics is the study of very low temperature and its application on different materials including biological products. Cryogenics has numerous applications in space science, electronics, automobiles, the manufacturing industry, sports and musical instruments, biological science and agriculture, etc. Cryogenic freezing finds pivotal application in food, that is, spices and condiments. Although there is a wide range of cryogens to produce the desired low temperature, generally liquid nitrogen (LN₂) is used in food grinding. The application of low temperature shows a promising pathway to produce higher quality end product with higher flavor and volatile oil retention. Cryogenic grinders generally consist of precoolers and grinder with the cryogen distribution system. In such grinding systems, cryogens subject the raw material up to or lower than glass transition temperature before it is ground, thus eliminating much of the material and quality hassles of traditional grinding. At present, the capital investment including cryogen and handling costs escalate the final cost of the product. Thus, for large-scale production, a proper design to optimize and make it feasible is the need of the hour and understanding the behavior of different food materials at these low temperature conditions. This article reviews the scenario and application of cryogenics in different sectors, especially to spice grinding.
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Balasubramanian S, Borah A, Singh KK, Patil RT. Rheological and nutritional quality of selected dehulled legumes blended rice extrudates. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2012; 49:632-7. [PMID: 24082277 PMCID: PMC3550846 DOI: 10.1007/s13197-010-0206-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/03/2010] [Accepted: 12/18/2010] [Indexed: 10/18/2022]
Abstract
Rheological and nutritional quality of ready-to-eat rice (Oryza sativa ) -legume viz. black gram (Vigna mungo), green gram (Vigna radiata), lentil (Lens culinaris) and peas (Pisum sativum) based extrudates were studied using low cost collet extruder. Extrudates were prepared keeping constant feed rate (25 kg/h) and moisture content (14% wb) at 0, 5, 10 and 15% legume incorporation levels. Rheological properties of porridge made of extrudate flour were evaluated using Rapid Visco Analyser (RVA). Maximum and minimum peak viscosity for rice extrudates alone and rice extrudates blended with 15% peas were 697 cp and 523 cp, respectively. There was a decreasing trend in degree of gelatinization with increase in legume incorporation level. Other RVA rheological parameters like trough break down and final viscosity were in the range of 266-226 cp, 431-297 cp and 452-375 cp respectively. Maximum values of protein, fat, fibre and ash contents were found in rice extrudates at 15% legumes blend levels. There was an increasing trend in nutrient contents with legume content in rice extrudates. Degree of gelatinization for rice alone extrudate was 29.4% and showed a decrease in gelatinization with increase in legumes extrudate and was minimum (22.4%) for rice blended with 15% dehulled green gram. Sensory evaluation scores for all extrudates showed the most acceptable range of 6 to 8. Thus, legume blend level (up to 15%) of dehulled legumes fetched good scores and showed promising trend for the production of low cost expanded extrudates and its instant flour.
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Sajid MS, Leaver C, Haider Z, Worthington T, Karanjia N, Singh KK. Routine on-table cholangiography during cholecystectomy: a systematic review. Ann R Coll Surg Engl 2012; 94:375-80. [PMID: 22943325 PMCID: PMC3954316 DOI: 10.1308/003588412x13373405385331] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2011] [Indexed: 01/09/2023] Open
Abstract
INTRODUCTION The aim of this review was to systemically analyse trials evaluating the efficacy of routine on-table cholangiography (R-OTC) versus no on-table cholangiography (N-OTC) in patients undergoing cholecystectomy. METHODS Randomised trials evaluating R-OTC versus N-OTC in patients undergoing cholecystectomy were selected and analysed. RESULTS Four trials (1 randomised controlled trial on open cholecystectomy and 3 on laparoscopic cholecystectomy) encompassing 860 patients undergoing cholecystectomy with and without R-OTC were retrieved. There were 427 patients in the R-OTC group and 433 patients in the N-OTC group. There was no significant heterogeneity among trials. Therefore, in the fixed effects model, N-OTC did not increase the risk (p=0.53) of common bile duct (CBD) injury, and it was associated with shorter operative time (p<0.00001) and fewer peri-operative complications (p<0.04). R-OTC was superior in terms of peri-operative CBD stone detection (p<0.006) and it reduced readmission (p<0.03) for retained CBD stones. CONCLUSIONS N-OTC is associated with shorter operative time and fewer peri-operative complications, and it is comparable to R-OTC in terms of CBD injury risk during cholecystectomy. R-OTC is helpful for peri-operative CBD stone detection and there is therefore reduced readmission for retained CBD stones. The N-OTC approach may be adopted routinely for patients undergoing laparoscopic cholecystectomy providing there are no clinical, biochemical or radiological features suggestive of CBD stones. However, a major multicentre randomised controlled trial is required to validate this conclusion.
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Jha N, Shankar PR, Bajracharya O, Gurung SB, Singh KK. Adverse drug reaction reporting in a pharmacovigilance centre of Nepal. Australas Med J 2012; 5:268-71. [PMID: 22848322 DOI: 10.4066/amj.2012.1142] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Pharmacovigilance is the "science and activities relating to the detection, assessment, understanding and prevention of adverse effects or any other drug related problems". Nepal joined the international pharmacovigilance programme as a full member in 2007. KIST Medical College, Lalitpur, Nepal joined the national programme as a regional centre from mid-July 2008. Currently, the pattern and scope of adverse drug reactions (ADRs) in Nepal remains unexplored. AIMS To observe and analyse the pattern of ADRs at KIST Medical College, Lalitpur, Nepal. METHOD A retrospective analysis of all ADRs reported to the centre from mid July 2008 to July 2011 was performed. Data was analysed for ADR severity, causality, and preventability. RESULTS A total of 113 ADR reports were obtained from various clinical departments. The maximum number of reactions was due to antimicrobials, followed by anti-hypertensives and NSAIDs. CONCLUSION Antimicrobials were the commonest group of drugs causing ADRs and the most commonly seen ADR was maculopapular rash followed by diarrhea and vomiting.
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Jha N, Shankar PR, Bajracharya O, Gurung SB, Singh KK. Adverse drug reaction reporting in a pharmacovigilance centre of Nepal. Australas Med J 2012. [PMID: 22848322 DOI: 10.4066/amj.2012.1142.] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Pharmacovigilance is the "science and activities relating to the detection, assessment, understanding and prevention of adverse effects or any other drug related problems". Nepal joined the international pharmacovigilance programme as a full member in 2007. KIST Medical College, Lalitpur, Nepal joined the national programme as a regional centre from mid-July 2008. Currently, the pattern and scope of adverse drug reactions (ADRs) in Nepal remains unexplored. AIMS To observe and analyse the pattern of ADRs at KIST Medical College, Lalitpur, Nepal. METHOD A retrospective analysis of all ADRs reported to the centre from mid July 2008 to July 2011 was performed. Data was analysed for ADR severity, causality, and preventability. RESULTS A total of 113 ADR reports were obtained from various clinical departments. The maximum number of reactions was due to antimicrobials, followed by anti-hypertensives and NSAIDs. CONCLUSION Antimicrobials were the commonest group of drugs causing ADRs and the most commonly seen ADR was maculopapular rash followed by diarrhea and vomiting.
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