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1.  PRKAG2 mutation: An easily missed cardiac specific non-lysosomal glycogenosis 
Annals of Pediatric Cardiology  2015;8(2):153-156.
Mutations in PRKAG2 gene that regulates the ╬│2 subunit of the adenosine monophosphate (AMP) dependent protein kinase have been associated with the development of atrioventricular (AV) accessory pathways, cardiac hypertrophy, and conduction system abnormalities. These patients can potentially be misdiagnosed as hypertrophic cardiomyopathy (HOCM) and/or Wolf-Parkinson White (WPW) syndrome due to similar clinical phenotype. Early recognition of this disease entity is very important as ablation of suspected accessory pathways is not effective and the natural history of the disease is very different from HOCM and WPW syndrome.
PMCID: PMC4453188  PMID: 26085771
Arrhythmia; hypertrophic cardiomyopathy; PRKAG 2 mutation; WPW syndrome
2.  Occupational Exposure to Human Immunodeficiency Virus in Health Care Providers: A Retrospective Analysis 
To determine the population at risk, risk factors, and outcome of occupational exposure to blood and body fluids in health care providers.
Materials and Methods:
Retrospective review of two and half year data of ongoing surveillance of occupational exposure to blood and body fluids in a tertiary care hospital.
103 Health Care Providers (HCP) reported an occupational exposure to blood and body fluids during the period under review. These comprised 72 (69.9%) doctors, 20 (19.4%) nursing personnel, and 11 (10.6%) cleaning staff. Of the doctors, 65% were interns. 53.4% HCP had work experience of less than one year. Circumstances of exposure included clinical procedures (48%), sweeping/handling used sharps (29%), recapping (16%), and surgery (6.9%). 74.3% of the exposures were due to non-compliance with universal precautions and were thus preventable. The device most frequently implicated in causing injury was hollow bore needle (n=85, 82.5%). Human Immunodeficiency Virus (HIV) status of the source was positive in 6.8% cases, negative in 53.4% cases, and unknown in remaining 39.8% cases. Postexposure prophylaxis (PEP) was indicated in 100 (97.08%) cases and was initiated within 2 h of exposure in 26.8% HCP. In 23.2% HCP, PEP initiation was delayed beyond 72 h of exposure due to late reporting. Thirteen HCP received expanded and the remaining received basic regime. Of the 82 HCP followed up, 15 completed the full course, while 55 stopped PEP after the first dose due to negative source status. Twelve HCP with exposure to blood of unknown HIV status discontinued PEP despite counseling. Complete follow-up for seroconversion was very poor among the HCP. HIV status at 6 month of exposure is not known for any HCP.
Failure to follow universal precautions including improper disposal of waste was responsible for majority of occupational exposures. HCP need to be sensitized regarding hospital waste management, management of occupational exposure, need for PEP, and continued follow-up.
PMCID: PMC3326807  PMID: 22529540
Human Immunodeficiency Virus; occupational exposure; postexposure prophylaxis
4.  Osteochondritis dessicans of the talus in a 26-year-old woman 
BMJ Case Reports  2009;2009:bcr06.2008.0091.
PMCID: PMC3028610  PMID: 21686937
5.  Iatrogenic ulnar nerve injury resulting from a venous cut down procedure 
BMJ Case Reports  2008;2008:bcr0620080264.
We present a case of an iatrogenic left ulnar nerve injury caused during the basilic vein cut down in a 25-year-old woman presenting with a ruptured ectopic pregnancy and requiring an emergency laparotomy. Two months after her discharge from the hospital, the patient presented to the hand surgery clinic with a weak grip strength and paraesthesias in the left hand, diagnosed to be resulting from a deficient ulnar nerve function. Surgical exploration of the nerve showed a complete section of the nerve. End to end repair and anterior transposition of the nerve was done. At 10 months follow up, the patient showed recovery in the flexor digitorum profundus and flexor carpi ulnaris, thus partially improving the grip strength. The patient was still under follow-up at the time this report was prepared.
PMCID: PMC3124750  PMID: 21716827
6.  Late arthroscopic retrieval of a bullet from hip joint 
Indian Journal of Orthopaedics  2009;43(4):416-419.
We describe a case of arthroscopic retrieval of a bullet from the hip joint of an 18-year-old boy, who sustained the injury four months back, accidentally, while bird hunting with a country made shotgun. The surgery was performed with the standard ordinary instrumentation of knee arthroscopy. The patient became pain-free the same evening and started partial weight bearing on the next day of surgery. At 13 months follow-up, the patient had returned to normal activity without any functional limitations.
PMCID: PMC2762570  PMID: 19838396
Arthroscopy; bullet injury; hip
7.  Improved alignment quality by combining evolutionary information, predicted secondary structure and self-organizing maps 
BMC Bioinformatics  2006;7:357.
Protein sequence alignment is one of the basic tools in bioinformatics. Correct alignments are required for a range of tasks including the derivation of phylogenetic trees and protein structure prediction. Numerous studies have shown that the incorporation of predicted secondary structure information into alignment algorithms improves their performance. Secondary structure predictors have to be trained on a set of somewhat arbitrarily defined states (e.g. helix, strand, coil), and it has been shown that the choice of these states has some effect on alignment quality. However, it is not unlikely that prediction of other structural features also could provide an improvement. In this study we use an unsupervised clustering method, the self-organizing map, to assign sequence profile windows to "structural states" and assess their use in sequence alignment.
The addition of self-organizing map locations as inputs to a profile-profile scoring function improves the alignment quality of distantly related proteins slightly. The improvement is slightly smaller than that gained from the inclusion of predicted secondary structure. However, the information seems to be complementary as the two prediction schemes can be combined to improve the alignment quality by a further small but significant amount.
It has been observed in many studies that predicted secondary structure significantly improves the alignments. Here we have shown that the addition of self-organizing map locations can further improve the alignments as the self-organizing map locations seem to contain some information that is not captured by the predicted secondary structure.
PMCID: PMC1562450  PMID: 16869963

Results 1-7 (7)