1.Seasonal variation in toxicity of citral against Fasciola larva
Sunita Kumari ; Kumar Pradeep ; Singh Kumar Dinesh
Asian Pacific Journal of Tropical Biomedicine 2014;(z2):584-588
Objective:To test whether the larvicidal activity of citral against Fasciola varies by season.
Methods:Mortality of Fasciola larva in different month of year (2011-2012) in in vitro and in vivo condition were observed at 2 h, 4 h, 6 h and 8 h exposure of citral.
Results:In vitro toxicity of citral against redia was highest in between the June to August (8 h LC50: 2.58-2.62 mg/L), whereas against cercaria 8 h LC50 was in between 3.44-2.62 mg/L. Highest in vivo toxicity against redia was noted in between June to August (8h LC50: 4.20-5.09 mg/L). The lowest toxicity was observed from November to April. The highest temperature, free carbon dioxide, and lowest pH, dissolved oxygen were observed from June to August.
Conclusions:The present study conclusively shows that varying a biotic factor can significantly alter the in vitro and in vivo toxicity of citral against sporocyst redia and cercaria larva.
2.Epilepsy and abnormal MRI brain findings in a patient with Duchenne’s muscular dystrophy – A rare association
Dinkar Kulshreshtha ; Kiranpreet Malhotra ; Pradeep Kumar Maurya ; Ajai K Singh ; Anup Kumar Thacker
Neurology Asia 2015;20(2):181-183
Epilepsy in Duchene’s muscular dystrophy, though more prevalent than in general population, is seen
in only 6-10% cases of DMD. Earlier studies have reported nonspecific MRI findings in DMD patients
with epilepsy. We report a patient of DMD, diagnosed on muscle biopsy who had definite MRI brain
imaging abnormalities. Our case highlights the rare association of MRI brain signal changes in this
patient with DMD.
Epilepsy
3.Isolation and Identification of Pathogenic Bacteria from Brackish Waters of Chilika Lagoon, Odisha, India for Pharmaceutical Use
Subhashree Parida ; Ram Chandra Jena ; Kailash Chandra Samal ; Pradeep Kumar Chand
Malaysian Journal of Microbiology 2012;8(3):197-202
Aims: The present investigation was undertaken in order to isolate bacteria from eighteen different water samples
collected from three different sectors of ‘Chilika’ lagoon of India and to study the resistance against ten different
antibiotics viz., norfloxacin, tetracycline, ciprofloxacin, neomycin, nalidixic acid, ofloxacin, chloramphenicol, nitrofurantoin, streptomycin and amoxicillin as well as their serological implications.
Methodology and Results: Four different pathogenic bacteria species viz., Shigella dysenteriae, Streptococcus lactis, Bacillus cereus and Klebsiella pneumoniae were isolated which showed a wide range of sensitivity to norfloxacin,tetracycline, ciprofloxacin, ofloxacin and nitrofurantoin. S. dysenteriae was sensitive to streptomycin where as other isolates were found to be resistant. Agarose gel electrophoresis failed to reveal plasmid DNA band indicating that the observed resistance was perhaps encoded by nucleotide sequences harboured on the chromosomal DNA. Bacterial isolates were used as antigen for the production of polyclonal antibodies in rabbits. Conclusion, significance and impact of study:All the isolates exhibited strong antigenic character with specific serological relationship which can be implicated towards development of novel and pharmaceutically effective antibacterial products.
4.Production and Characterization of Monoclonal Antibodies to Bluetongue Virus
Veerakyathappa Bhanuprakash ; Madhusudhan Hosamani ; Vinayagamurthy Balamurugan ; Pradeep Narayan Gandhale ; Gnanavel Venkatesan ; Raj Kumar Singh
Virologica Sinica 2011;26(1):8-18
In the present study, a total of 24 Mabs were produced against bluetongue virus (BTV) by polyethyleneglycol (PEG) mediated fusion method using sensitized lymphocytes and myeloma cells. All these clones were characterized for their reactivity to whole virus and recombinant BTV-VP7 protein, titres, isotypes and their reactivity with 24 BTV-serotype specific sera in cELISA. Out of 24 clones, a majority of them (n = 18)belong to various IgG subclasses and the remaining (n = 6) to the IgM class. A panel of eight clones reactive to both whole BTV and purified rVP7 protein were identified based on their reactivity in iELISA. For competitive ELISA, the clone designated as 4A10 showed better inhibition to hyperimmune serum of BTV serotype 23. However, this clone showed a variable percent of inhibition ranging from 16.6% with BTV 12 serotype to 78.9% with BTV16 serotype using 24 serotype specific sera of BTV originating from guinea pig at their lowest dilutions. From the available panel of clones, only 4A 10 was found to have a possible diagnostic application.
5.Detection of Bluetongue Virus Group-specific Antigen Using Monoclonal Antibody Based Sandwich ELISA
Pradeep Narayan Gandhale ; Veerakyathappa Bhanuprakash ; Vinayagamurthy Balamurugan ; Madhusudhan Hosamani ; Gnanavel Venkatesan ; Raj Kumar Singh
Virologica Sinica 2010;25(6):390-400
A monoclonal antibody (MAb) specific for the bluetongue virus (BTV) group specific antigen (VP7) was characterized for its reactivity with purified virus and recombinant BTV VP7 (rVP7) protein and its suitability for use in the sandwich ELISA. The MAb, designated as 5B5 was specific to VP7 and belongs to IgG2a subclass and was selected for the development of the sELISA in this study. The MAb had a titer of 1:25 with BTV and 1:2 with the rVP7 protein. The sELISA is based on capturing of BTV antigen with VP7 specific MAb followed by detection using BTV polyclonal antiserum raised in rabbits. The assay was evaluated with six cell culture adapted serotypes of BTV that have been isolated from India, 1, 2, 15, 17, 18 and 23. The assay could detect BTV antigen as early as day 8 in blood. It was also successfully applied for the detection of BTV group specific antigen in clinical samples of blood, washed RBCs, buffy coat and plasma. A total of 102 field samples from animals, suspected of being infected with BTV, were tested and 29.42% were positive. The blood samples were also amplified in cell culture which improved the sensitivity of the assay. Results confirmed that the sELISA is rapid and specific.
6.Association between Beta Adrenergic Receptor Polymorphism and Ischemic Stroke: A Meta-Analysis.
Amit KUMAR ; Manya PRASAD ; Pradeep KUMAR ; Arun Kumar YADAV ; Awadh Kishor PANDIT ; Prachi KATHURIA
Journal of Stroke 2015;17(2):138-143
BACKGROUND AND PURPOSE: The purpose of this meta-analysis was to determine the precise association between beta-2 adrenergic receptor (beta2AR) polymorphism and Ischemic stroke. METHODS: Published case control studies on association between beta2AR and ischemic stroke were searched from electronic databases. Pooled Odds ratio and 95% Confidence interval were calculated by using software RevMan version 5.2. RESULTS: A total of three studies involving 1,642 cases and 1,673 controls, which were published from 2007 to 2014, were subjected to meta-analysis for allelic association and 518 cases and 510 controls for genotypic association. Pooled analysis of two studies for genotypic association suggested that subjects carrying Gln27Glu polymorphism of beta2AR had an increased risk for Ischemic stroke under recessive model (OR 2.09; 95% CI; 1.20 to 3.64) and under dominant model (OR 1.47; 95% CI 1.14 to 1.90). Pooled analysis of three studies for allelic association showed a significantly higher Glu27 allele of beta2AR in the patients with ischemic stroke (OR 1.58; 95% CI; 1.38 to 1.81). CONCLUSIONS: The present meta-analysis suggests that Gln27Glu polymorphism of beta2AR gene is associated with increased risk for ischemic stroke.
Alleles
;
Case-Control Studies
;
Cerebral Infarction
;
Humans
;
Odds Ratio
;
Receptors, Adrenergic*
;
Receptors, Adrenergic, beta-2
;
Stroke*
7.Reproductive performance of genetically engineered mice housed in different housing systems.
Shikha YADAV ; Inderjeet YADAV ; Kunal PRATAP ; Pradeep Kumar TIWARI ; Vijay Pal SINGH
Laboratory Animal Research 2017;33(2):68-75
The genetically engineered mice require special husbandry care and are mainly housed in Individually Ventilated Cage (IVC) systems and Static Micro Isolator Cages (SMIC) to minimize the risk for spreading undesirable microorganisms. However, the static micro isolation cage housing like SMIC are being replaced with IVC systems in many facilities due to a number of benefits like a higher density housing in limited space, better protection from biohazards and allergens and decreased work load due to decreased frequency of cage changing required in this system. The purpose of this study was to examine the reproductive performance of genetically engineered mice housed in individually ventilated cages (IVC) and Static Micro Isolator Cages (SMIC). When the B6C3-Tg (APPswe, PSEN1dE9) 85Dbo/Mmjax transgenic mice were housed in these two housing systems, the number of litters per dam, number of pups born per dam and number of pups weaned per dam were found to be slightly higher in the IVC as compared to the SMIC but the difference was not significant (P<0.05). In case of Growth Associated Protein 43 (GAP-43) knockout mice, the number of litters born per dam and the number of pups born per dam were marginally higher in the IVC as compared to those housed in SMIC but the difference was not significant (P<0.05). Only the number of pups weaned per dam were found to be significantly higher as compared to those housed in the SMIC system at P<0.05.
Allergens
;
Animals
;
GAP-43 Protein
;
Hazardous Substances
;
Housing*
;
Mice*
;
Mice, Knockout
;
Mice, Transgenic
8.Prediction of Upper Limb Motor Recovery after Subacute Ischemic Stroke Using Diffusion Tensor Imaging: A Systematic Review and Meta-Analysis.
Pradeep KUMAR ; Prachi KATHURIA ; Pallavi NAIR ; Kameshwar PRASAD
Journal of Stroke 2016;18(1):50-59
Early evaluation of the pyramidal tract using Diffusion Tensor Imaging (DTI) is a prerequisite to decide the optimal treatment or to assess appropriate rehabilitation. The early predictive value of DTI for assessing motor and functional recovery in ischemic stroke (IS) has yielded contradictory results. The purpose is to systematically review and summarize the current available literature on the value of Fractional Anisotropy (FA) parameter of the DTI in predicting upper limb motor recovery after sub-acute IS. MEDLINE, PubMed, EMBASE, Google Scholar and Cochrane CENTRAL searches were conducted from January 1, 1950, to July 31, 2015, which was supplemented with relevant articles identified in the references. Correlation between FA and upper limb motor recovery measure was done. Heterogeneity was examined using Higgins I-squared, Tau-squared. Summary of correlation coefficient was determined using Random Effects model. Out of 166 citations, only eleven studies met the criteria for inclusion in the systematic review and six studies were included in the meta-analysis. A random effects model revealed that DTI parameter FA is a significant predictor for upper limb motor recovery after sub-acute IS [Correlation Coefficient=0.82; 95% Confidence Interval-0.66 to 0.90, P value<0.001]. Moderate heterogeneity was observed (Tau-squared=0.12, I-squared=62.14). The studies reported so far on correlation between DTI and upper limb motor recovery are few with small sample sizes. This meta-analysis suggests strong correlation between DTI parameter FA and upper limb motor recovery. Well-designed prospective trials embedded with larger sample size are required to establish these findings.
Anisotropy
;
Diffusion Tensor Imaging*
;
Diffusion*
;
Paresis
;
Population Characteristics
;
Prospective Studies
;
Pyramidal Tracts
;
Rehabilitation
;
Sample Size
;
Stroke*
;
Upper Extremity*
9.Prediction of Upper Limb Motor Recovery after Subacute Ischemic Stroke Using Diffusion Tensor Imaging: A Systematic Review and Meta-Analysis.
Pradeep KUMAR ; Prachi KATHURIA ; Pallavi NAIR ; Kameshwar PRASAD
Journal of Stroke 2016;18(1):50-59
Early evaluation of the pyramidal tract using Diffusion Tensor Imaging (DTI) is a prerequisite to decide the optimal treatment or to assess appropriate rehabilitation. The early predictive value of DTI for assessing motor and functional recovery in ischemic stroke (IS) has yielded contradictory results. The purpose is to systematically review and summarize the current available literature on the value of Fractional Anisotropy (FA) parameter of the DTI in predicting upper limb motor recovery after sub-acute IS. MEDLINE, PubMed, EMBASE, Google Scholar and Cochrane CENTRAL searches were conducted from January 1, 1950, to July 31, 2015, which was supplemented with relevant articles identified in the references. Correlation between FA and upper limb motor recovery measure was done. Heterogeneity was examined using Higgins I-squared, Tau-squared. Summary of correlation coefficient was determined using Random Effects model. Out of 166 citations, only eleven studies met the criteria for inclusion in the systematic review and six studies were included in the meta-analysis. A random effects model revealed that DTI parameter FA is a significant predictor for upper limb motor recovery after sub-acute IS [Correlation Coefficient=0.82; 95% Confidence Interval-0.66 to 0.90, P value<0.001]. Moderate heterogeneity was observed (Tau-squared=0.12, I-squared=62.14). The studies reported so far on correlation between DTI and upper limb motor recovery are few with small sample sizes. This meta-analysis suggests strong correlation between DTI parameter FA and upper limb motor recovery. Well-designed prospective trials embedded with larger sample size are required to establish these findings.
Anisotropy
;
Diffusion Tensor Imaging*
;
Diffusion*
;
Paresis
;
Population Characteristics
;
Prospective Studies
;
Pyramidal Tracts
;
Rehabilitation
;
Sample Size
;
Stroke*
;
Upper Extremity*