1.Serosurveillance for Japanese encephalitis virus infection among equines in India.
Baldev R GULATI ; Harisankar SINGHA ; Birendra K SINGH ; Nitin VIRMANI ; Sandip K KHURANA ; Raj K SINGH
Journal of Veterinary Science 2011;12(4):341-345
The seroprevalence of Japanese encephalitis virus (JEV) among equines was evaluated from January 2006 to December 2009 in 13 different states of India by hemagglutination inhibition (HI) test and virus neutralization test (VNT). Antibodies against JEV were detected in 327 out of 3,286 (10%) equines with a maximum prevalence reported in the state of Manipur (91.7%) followed by Gujarat (18.5%), Madhya Pradesh (14.4%), and Uttar Pradesh (11.6%). Evidence of JEV infection was observed in equines in Indore (Madhya Pradesh) where a 4-fold or higher rise in antibody titer was observed in 21 out of 34 horses in November 2007 to October 2006. In March 2008, seven of these horses had a subsequent 4-fold rise in JEV antibody titers while this titer decreased in nine animals. JEV-positive horse sera had a JEV/WNV (West Nile virus) ratio over 2.0 according to the HI and/or VNT. These results indicated that JEV is endemic among equines in India.
Animals
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Encephalitis, Japanese/blood/epidemiology/*veterinary
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*Equidae
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India/epidemiology
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Neutralization Tests
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Seroepidemiologic Studies
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Time Factors
2.Isolation and genetic characterization of Japanese encephalitis virus from equines in India.
Baldev R GULATI ; Harisankar SINGHA ; Birendra K SINGH ; Nitin VIRMANI ; Sanjay KUMAR ; Raj K SINGH
Journal of Veterinary Science 2012;13(2):111-118
Japanese encephalitis (JE) is an important vector-borne viral disease of humans and horses in Asia. JE outbreaks occur regularly amongst humans in certain parts of India and sporadic cases occur among horses. In this study, JE seroprevalence and evidence of JE virus (JEV) infection among horses in Haryana (India) is described. Antibodies against JEV were detected in 67 out of 637 (10.5%) horses screened between 2006 and 2010. Two foals exhibiting neurological signs were positive for JEV RNA by RT-PCR; JEV was isolated from the serum of one of the foals collected on the second day of illness. This is the first report of JEV isolation from a horse in India. Furthermore, a pool of mosquitoes collected from the premises housing these foals was positive for JEV RNA by RT-PCR. Three structural genes, capsid (C), premembrane (prM), and envelope (E) of the isolated virus (JE/eq/India/H225/2009) spanning 2,500 nucleotides (from 134 to 2,633) were cloned and sequenced. BLAST results showed that these genes had a greater than 97% nucleotide sequence identity with different human JEV isolates from India. Phylogenetic analysis based on E- and C/prM genes indicated that the equine JEV isolate belonged to genotype III and was closely related to the Vellore group of JEV isolates from India.
Animals
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Antibodies, Monoclonal
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Cloning, Molecular
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Culex/virology
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Encephalitis Virus, Japanese/*genetics/*isolation & purification
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Encephalitis, Japanese/epidemiology/*veterinary/virology
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Enzyme-Linked Immunosorbent Assay/methods/veterinary
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Female
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Genes, Viral
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Genotype
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Horse Diseases/epidemiology/*virology
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Horses
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India/epidemiology
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RNA, Viral/genetics/isolation & purification
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Reverse Transcriptase Polymerase Chain Reaction/veterinary
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Seroepidemiologic Studies
3.Enhancement of urinary elimination of 3-bromobenzanthrone metabolites by oral supplementation of ascorbic acid in guinea pigs.
Ravindra P SINGH ; Raj KHANNA ; Subhash K KHANNA ; Mukul DAS
Biomedical and Environmental Sciences 2004;17(4):390-396
OBJECTIVE3-Bromobenzanthrone (3-BBA), an anthraquinone intermediate dye, is extensively used in textile industry. Since, our prior studies have shown that 3-BBA caused significant depletion of ascorbic acid (AsA) levels, the effect of exogenous supplementation of AsA on the urinary elimination of 3-BBA metabolites was investigated.
METHODGuinea pigs were treated with single oral dose of 3-BBA (50 mg/kg b. wt.) in groundnut oil while another group was treated with single oral dose of 3-BBA (50 mg/kg b. wt.) along with 3 day prior and post oral supplementation of AsA. Control groups were either treated with groundnut oil or AsA alone. Urine from individual animals was collected, extracted and analysed on HPTLC.
RESULTSThe highest elimination of 3-BBA (75 microg) was found to be in 0-24 h urine fraction which decreased to 18 microg and 5 microg in the two subsequent 24 hourly fractions of urine. Exogenous supplementation of AsA increased the total urinary elimination of 3-BBA by almost 77%. A total of 10 fluorescent metabolites excluding the parent compound were eliminated in the urine of guinea pigs treated with 3-BBA. Densitometric scanning of chromatogram showed different peaks at Rf 0.18, 0.22, 0.27, 0.34, 0.40, 0.48, 0.56, 0.66, 0.72, 0.80, and 0.95 which were eliminated and marked as urinary metabolite 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 respectively. AsA not only significantly enhanced the elimination of 3-BBA metabolites but also modified the pattern of metabolites drastically in 0-6 h, 6-24 h and 24-48 h urine fractions.
CONCLUSIONThese results indicate that AsA may be useful in protecting the toxicity of 3-BBA by fascilitating the urinary metabolite(s) excretion of 3-BBA.
Administration, Oral ; Animals ; Antioxidants ; pharmacology ; Ascorbic Acid ; pharmacology ; urine ; Benz(a)Anthracenes ; analysis ; metabolism ; Chromatography, High Pressure Liquid ; Guinea Pigs ; Lipid Peroxidation ; drug effects ; Plant Oils ; metabolism ; Time Factors
4.Morbidity patterns among the welders of eastern Nepal: a cross-sectional study.
Shyam Sundar BUDHATHOKI ; Suman Bahadur SINGH ; Surya Raj NIRAULA ; Paras K. POKHAREL
Annals of Occupational and Environmental Medicine 2016;28(1):62-
BACKGROUND: Welding process has many hazards that the welders are exposed to resulting in numbers of health effects and diseases. Safety measures and practices among welders are important ways of preventing or reducing the health hazards associated with this occupation. We conducted this study to find out the morbidity patterns among the welders working in eastern Nepal. METHODS: A cross sectional study was conducted among 300 welders using semi structured questionnaire. Morbidity categories were classified based on symptoms experienced in past 6 months. RESULTS: All the welders learned welding by apprenticeship, without any formal health and safety training. Injury was the most common problem at work followed by skin problems and eye symptoms. Age of the welders, duration of employment & welding hours per day were associated with the morbidities among the welders. CONCLUSIONS: There is a need for occupational health services for welders in Nepal. While further research may be required to make policy recommendations, the current study provides a baseline morbidity burden among these welders to look for interventions to promote health and safety at work for this neglected group of workers in Nepal.
Cross-Sectional Studies*
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Employment
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Nepal*
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Occupational Health Services
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Occupations
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Skin
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Welding
5.Ipsilateral simultaneous fracture of the trochlea involving the lateral end clavicle and distal end radius: a rare combination and a unique mechanism of injury.
R-K GUPTA ; Raj SINGH ; Vinit VERMA ; Amit BATRA ; Nishant SETIA ; Paritosh GOGNA ; Jeetesh GAWANDE
Chinese Journal of Traumatology 2014;17(4):246-248
Isolated trochlea fracture in adults is a rare surgical entity as compared to its capitellar counterpart. It has been only mentioned sporadically in the literature as case reports. Fracture of the trochlea is accompanied by other elbow injuries like elbow dislocation, capitellum fracture, ulnar fracture and extraarticular condylar fracture. Here we report a unique case of isolated displaced trochlea fracture associated with fractures of the lateral end clavicle and the distal end radius. We propose a unique mechanism for this rare combination of injuries: typical triad of injury, i.e. fracture of the distal end radius with trochlea and fracture of the lateral end of the clavicle. Nonoperative treatment is recommended for undisplaced humeral trochlea fractures; but for displaced ones, anatomical reduction and internal fixation are essential to maintain the congruous trochlea-coronoid articulation and hence to maintain the intrinsic stability of the elbow.
Accidents, Traffic
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Adolescent
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Clavicle
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diagnostic imaging
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injuries
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Fracture Fixation, Internal
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methods
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Humans
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Humeral Fractures
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diagnostic imaging
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surgery
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Male
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Radiography
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Radius Fractures
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diagnostic imaging
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surgery
6.Comparative Evaluation of Several Gene Targets for Designing a Multiplex-PCR for an Early Diagnosis of Extrapulmonary Tuberculosis.
Ankush RAJ ; Netrapal SINGH ; Krishna B GUPTA ; Dhruva CHAUDHARY ; Aparna YADAV ; Anil CHAUDHARY ; Kshitij AGARWAL ; Mandira VARMA-BASIL ; Rajendra PRASAD ; Gopal K KHULLER ; Promod K MEHTA
Yonsei Medical Journal 2016;57(1):88-96
PURPOSE: Diagnosis of extrapulmonary tuberculosis (EPTB) poses serious challenges. A careful selection of appropriate gene targets is essential for designing a multiplex-polymerase chain reaction (M-PCR) assay. MATERIALS AND METHODS: We compared several gene targets of Mycobacterium tuberculosis, including IS6110, devR, and genes encoding MPB-64 (mpb64), 38kDa (pstS1), 65kDa (hsp65), 30kDa (fbpB), ESAT-6 (esat6), and CFP-10 (cfp10) proteins, using PCR assays on 105 EPTB specimens. From these data, we chose the two best gene targets to design an M-PCR. RESULTS: Among all gene targets tested, mpb64 showed the highest sensitivity (84% in confirmed cases and 77.5% in clinically suspected cases), followed by IS6110, hsp65, 38kDa, 30kDa, esat6, cfp10, and devR. We used mpb64+IS6110 for designing an M-PCR assay. Our M-PCR assay demonstrated a high sensitivity of 96% in confirmed EPTB cases and 88.75% in clinically suspected EPTB cases with a high specificity of 100%, taking clinical diagnosis as the gold standard. CONCLUSION: These M-PCR results along with the clinical findings may facilitate an early diagnosis of EPTB patients and clinical management of disease.
Bacteriological Techniques/methods
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DNA Transposable Elements/genetics
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DNA, Bacterial/analysis/genetics
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Early Diagnosis
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Female
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Gene Amplification
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Humans
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Male
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Multiplex Polymerase Chain Reaction/*methods
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Mycobacterium tuberculosis/genetics/*isolation & purification
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Polymerase Chain Reaction/*methods/standards
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Sensitivity and Specificity
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Tuberculosis/*diagnosis