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1.  Insights into Diversity and Imputed Metabolic Potential of Bacterial Communities in the Continental Shelf of Agatti Island 
PLoS ONE  2015;10(6):e0129864.
Marine microbes play a key role and contribute largely to the global biogeochemical cycles. This study aims to explore microbial diversity from one such ecological hotspot, the continental shelf of Agatti Island. Sediment samples from various depths of the continental shelf were analyzed for bacterial diversity using deep sequencing technology along with the culturable approach. Additionally, imputed metagenomic approach was carried out to understand the functional aspects of microbial community especially for microbial genes important in nutrient uptake, survival and biogeochemical cycling in the marine environment. Using culturable approach, 28 bacterial strains representing 9 genera were isolated from various depths of continental shelf. The microbial community structure throughout the samples was dominated by phylum Proteobacteria and harbored various bacterioplanktons as well. Significant differences were observed in bacterial diversity within a short region of the continental shelf (1–40 meters) i.e. between upper continental shelf samples (UCS) with lesser depths (i.e. 1–20 meters) and lower continental shelf samples (LCS) with greater depths (i.e. 25–40 meters). By using imputed metagenomic approach, this study also discusses several adaptive mechanisms which enable microbes to survive in nutritionally deprived conditions, and also help to understand the influence of nutrition availability on bacterial diversity.
PMCID: PMC4465901  PMID: 26066038
2.  Microbial Culture Collection (MCC) and International Depositary Authority (IDA) at National Centre for Cell Science, Pune 
Indian Journal of Microbiology  2014;54(2):129-133.
Culture collections are valuable resources for the sustainable use of microbial diversity and its conservation. Advances in biotechnology have further increased their importance and some of these have been recognized as International Depositary Authority (IDA) for the deposition of patent cultures. Microbial Culture Collection at National Centre for Cell Science was established by the Department of Biotechnology, Government of India is country’s newest culture collection with largest holdings. It is recognized as an IDA under the Budapest Treaty and Designated National Repository under the Biodiversity Act 2002. This article describes its various service related activities.
PMCID: PMC4188496  PMID: 25320411
Culture collection; International Depositary Authority; Biodiversity conservation
4.  Development and Characterization of In Situ Oral Gel of Spiramycin 
BioMed Research International  2014;2014:876182.
The present investigation deals with the optimization, formulation, and characterization of oral in situ gel of spiramycin. Sodium alginate and hydroxypropyl methylcellulose were used as cross-linking and viscosifying agents, respectively. Sodium bicarbonate was used as a floating agent. In preformulation studies, the melting point, pH, and partition coefficient were found to be 133°C, 9.5, and 0.193, respectively. The drug had retention time at around 2.65 minutes in high performance liquid chromatography (HPLC). During compatibility studies of drug with all polymers, we observed that there were no changes in the FTIR spectra of a mixture of drug and polymers. All the formulations showed good pourability. Floating time and total floating time were ~30 sec and >12 hours, respectively. During in vitro drug release studies, the drug was released from the formulation around 80–100% for 12–16 hrs. In TEM analysis, we found that the drug molecules were well entrapped in the polymer and the drug was released slowly for up to 12 hrs. In these studies, we found that the concentration of sodium alginate and HPMC had significant influence on floating lag time, gelling capacity, and cumulative percentage drug release. During antimicrobial studies, we found that the formulation containing spiramycin showed good zone of inhibition against different microbial strains (Staphylococcus aureus and Escherichia coli).
PMCID: PMC4094871  PMID: 25050376
5.  Why UK-trained doctors leave the UK: cross-sectional survey of doctors in New Zealand 
To investigate factors which influenced UK-trained doctors to emigrate to New Zealand and factors which might encourage them to return.
Cross-sectional postal and Internet questionnaire survey.
Participants in New Zealand; investigators in UK.
UK-trained doctors from 10 graduation-year cohorts who were registered with the New Zealand Medical Council in 2009.
Main outcome measures
Reasons for emigration; job satisfaction; satisfaction with leisure time; intentions to stay in New Zealand; changes to the UK NHS which might increase the likelihood of return.
Of 38,821 UK-trained doctors in the cohorts, 535 (1.4%) were registered to practise in New Zealand. We traced 419, of whom 282 (67%) replied to our questionnaire. Only 30% had originally intended to emigrate permanently, but 89% now intended to stay. Sixty-nine percent had moved to take up a medical job. Seventy percent gave additional reasons for relocating to New Zealand including better lifestyle, to be with family, travel/working holiday, or disillusionment with the NHS. Respondents' mean job satisfaction score was 8.1 (95% CI 7.9–8.2) on a scale from 1 (lowest satisfaction) to 10 (highest), compared with 7.1 (7.1–7.2) for contemporaries in the UK NHS. Scored similarly, mean satisfaction with the time available for leisure was 7.8 (7.6–8.0) for the doctors in New Zealand, compared with 5.7 (5.6–5.7) for the NHS doctors. Although few respondents wanted to return to the UK, some stated that the likelihood of doctors' returning would be increased by changes to NHS working conditions and by administrative changes to ease the process.
Emigrant doctors in New Zealand had higher job satisfaction than their UK-based contemporaries, and few wanted to return. The predominant reason for staying in New Zealand was a preference for the lifestyle there.
PMCID: PMC3265234  PMID: 22275495
6.  Usefulness of ultrasonography for the evaluation of cervical lymphadenopathy 
To evaluate the role of ultrasonography for differentiating cervical lymphadenopathy due to tuberculosis, metastasis and lymphoma.
Ultrasonography of the neck nodes was carried out prior to FNAC in 192 patients using a 10 mHz linear transducer. The sonographic findings were then correlated with the definitive tissue diagnosis obtained by FNAC or lymph node biopsy.
The most significant distinguishing feature was strong internal echoes seen in 84% of tubercular lymph nodes. This finding was found in only 11% of metastatic nodes and absent in lymphomatous nodes. The other findings such as L/S ratio, irregular margins, hypoechoic center, fusion tendency, peripheral halo and absent hilus were helpful in differentiating reactive from diseased nodes but showed considerable overlap in the 3 groups of tubercular, metastatic and lymphoma lymph nodes.
Ultrasonography is noninvasive and can give useful clues in the diagnosis of cervical lymphadenopathy. It should be interpreted in conjunction with FNAC result. Ideally ultra-sonographic guided FNAC should be obtained from the sonographically most representative node. In FNAC indeterminate cases, sonographic features may obviate the need for an invasive lymph node biopsy.
PMCID: PMC3050765  PMID: 21356049
7.  Drug interaction leading to prolonged sedation in a postoperative high risk coronary bypass surgery patient 
Use of midazolam infusion in mechanically ventilated patient is an established practice in critical care. In our case, the use of erythromycin as a prokinetic agent for better tolerance of enteral feeding and paralytic ileus led to an interaction between midazolam and erythromycin, which resulted in prolonged and deeply sedated patient. In a critically ill patient, there is always a possibility of multiple drug interactions. It is important to understand them and they should be considered before starting new medication.
PMCID: PMC3097546  PMID: 21633550
Erythromycin; midazolam; prolonged sedation
Ancient Science of Life  1989;8(3-4):212-219.
The alchoholic extract of seeds of Trichopus zeylanicus showed a potent adaptogenic or antistress properties against a variety of stresses in both rats an dmice. The extract increased the swimming performance of normal and adrenalectomized mice. Significantly; prevented a variety of stress and chemical induced ulcerations in rats and also prevented milk-induced leucocytosis in mice. The extract further reduced the gastric secretary clume, PH and acid output in pylorusligated rat stomach. No mortalitiy was observed upto a dose of 3 g/kg per oral in mice. The study indicated that trichopus zeylanicus seeds induce a state of nonspecific increased resistance against a variety of stress induced biological changes in animals.
PMCID: PMC3336722  PMID: 22557652

Results 1-8 (8)