Browsing by Author "Jha, CB"
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Publication Can homemade alcohol (raksi) be useful for preserving dead bodies? An experiment on wistar albino rats(Kathmandu University, 2007) Dhungel, S; Maskey, D; Jha, CB; Bhattacharya, S; Paudel, BH; Shrestha, RNIntroduction: Embalming is the through disinfection and art of preserving bodies after death using chemical substances. It keeps a body life like in appearance during the time it lies in a state prior to funeral. Objective: This study was undertaken to investigate the effectiveness of Raksi in sacrificed rats in arresting postmortem changes and establishing scientific fact whether Raksi can be an alternative to standard embalming constituent if it is not available. Material and methods: 50 albino rats were systematically randomized into control and experiment groups. Raksi and distilled water were injected for embalming purpose intraventricularly in experiment and control groups of rats respectively and kept for 48 to 96 hours for observation for postmortem changes. Result: Observations made at 48 and 72 hours of embalming revealed that Raksi can arrest postmortem changes in the rats up to 72 hours (3 rd day) successfully in the experimental group whereas moderate to severe postmortem changes were seen in the control group. The experimental group showed mild degree of putrefactive changes, liberation of gases and liquefaction of tissues only at 96 hours (4th day) of embalming. Discussion: The Raksi used in this experiment contained 34% of alcohol, which was determined by an alcohol hydrometer. Experiment clearly demonstrated from its result that raksi can be utilised temporarily for embalming since it contains alcohol and has preservative, bactericidal and disinfectant properties. Conclusion: It is concluded from the study that this knowledge if applied to dead human subjects, may preserve dead bodies temporarily allowing delayed funeral. Key words: Rat, Embalming, Homemade alcohol, Raksi, FuneralPublication Cytogenetic analysis of children with suspected genetic disorder(Kathmandu University, 2009) Shrestha, U; Bhattacharya, S; Bhatta, NK; Jha, CBAbstract Objectives: To analyze chromosomes in children with suspected genetic disorder and to categorize the chromosomal basis of genetic disorder Materials and methods: Thirty children were selected from the patients attending genetic clinic, Department of Pediatrics, B.P. Koirala Institute of Health Sciences presenting with dysmorphic feature, mental retardation, short stature, congenital malformations and ambiguous genitalia with age between 0-15 years. Cytogenetic analysis was carried using standard peripheral blood lymphocyte culture method and G-banding technique in Cytogenetic laboratory of Department of Anatomy, B.P. Koirala Institute of Health Sciences. Results: Chromosomal disorders were identified in 33.34% (10) of children. The most common chromosomal abnormality was Down syndrome (26.67%) followed by Turner syndrome (6.67%). Conclusion: The cytogenetic analysis of children with suspected chromosomal aberration is important to uncover the contribution of chromosomal disorder in genesis of dysmorphisms, mental retardation, short stature, sexual ambiguity and congenital malformation in children and prevent further potentially unpleasant investigation being undertaken. Key words: Chromosome, suspected genetic disorder, dysmorphic feature, mental retardation, short stature, congenital malformations, ambiguous genitaliaPublication Diagnostic role of conventional cytogenetics and fluorescence in situ hybridization (fish) in chronic myeloid leukemia patients(Kathmandu University, 2006) Jha, CB; Kucheria, K; Choudhary, VPIntroduction: The limitation of cytogenetic analysis is that the Ph chromosome cannot be detected in clumped metaphase or in interphase cells. Fluorescence in situ hybridization (FISH) is a highly sensitive molecular genetic technique, which enables to detect break point cluster region – Abelson (BCR-ABL) complex and minimal residual disease in all Ph positive CML patients not only in metaphase but also in interphase cells. Aims: To detect Ph chromosome in CML patients by the use of conventional cytogenetics and FISH. Material and methods: The bone marrow samples were collected in heparinised syringe from 35 diagnosed CML patients and transported to cytogenetic laboratory for chromosomal analysis. Conventional karyotype was prepared by direct harvesting and short-term culture. The FISH analysis was carried out on interphase cells of two patients to confirm the cytogenetic diagnosis. Results: Out of 35 CML patients, 17 (49.9%) were 100% Philadelphia positive, 10(28.5%) were 50-70% Ph+ mosaics and 3(9%) were 100% Ph negative. In 5 patients (14.25%) cytogenetic analysis failed to confirm the presence or absence of Ph chromosome. FISH was carried out in interphase cells from bone marrow preparations of two patients. The signals for BCR-ABL fusion gene was absent in Ph- negative CML patients. In Ph positive patients, the FISH analysis detected BCR-ABL fusion gene seen as a yellow signal on interphase cells. Conclusion: Conventional cytogenetics is a useful method for detection of Ph chromosome in metaphase stage of cell division. FISH can be used in interphase stage of cell division for the same purpose. Key words: CML, FISH, Chromosomal analysis, Philadelphia chromosomePublication Nerve Conduction study in healthy individuals a preliminary age based study(Kathmandu University, 2010) Thakur, D; Paudel, BH; Jha, CBABSTRACT Background Nerve conduction study assesses peripheral nerve functions and has clinical implication. Objectives To study the effect of age on nerve conduction study variables in healthy adults. Methods Cross sectional study was done from Jan 2006 to Dec 2006 in department of Physiology, BP Koirala Institute of Health Sciences, Dharan, Nepal. The study was done in 34 (younger, n= 18, 17 to 29 years; older, n= 16, 30 to 57 years) consenting healthy adults of either sex. The compound muscle action potential and sensory nerve action potential were recorded using standard technique. Due to the non-normal distribution of data, the effect of age on nerve conduction study variables was analyzed using Mann Whitney U test. Results Younger vs. older individuals: older had lower Compound Muscle action potential amplitude (mV) in all motor nerves except radial and left ulnar nerves. Compound Muscle action potential duration (ms) was shorter in older (p<0.05) in ulnar, tibial, right median and left common peroneal motor nerves than the younger: right median (6.92±1.3 vs. 8.5±1.88), right ulnar (7.09±1.54vs. 8.2±1.31), left ulnar (10.56±1.44 vs. 12.06±1.5), right tibial (6.28±0.81vs. 7.28±1.12), and left tibial (9.58±1.52vs.10.78±1.71). Sensory nerve actional potential amplitude (μV) was smaller in older as compared to younger: right median (19.01±7.83 vs. 26.97±10.63), right ulnar (10.9±3.44 vs.16.09±5.85) and right radial (14.31±4.34 vs.19.72±6.47). SNAP duration (ms) was longer in older: right ulnar (1.34±0.17 vs.1.26± 0.18), left ulnar (1.46±0.14 vs. 1.29±0.26), and left median (1.11± 0.14 vs. 1± 0.14). Conclusions Age has definite effects on amplitude and duration of motor and sensory nerves. Different nerves have different timing of aging. Without adjustment for age, the sensitivity and specificity of nerve conduction study will decrease whenusing the same reference data in patients with different age. Key Words age, compound muscle action potential, nerve conduction study, sensory nerve action potential