Rahul M.K.,Sri Muthukumaran Medical College and research institute |
Krishnamoorthy,Meenakshi Medical College and Research Institute
Journal of Global Infectious Diseases | Year: 2012
Chikungunya, an alpha virus belonging to the family of Togaviridae is transmitted to humans by the bite of Aedes aegypti mosquito and presents with fever, headache, rash, and severe arthralgia. Chikungunya virus is not known to be neurotropic, but cases of meningoencephalitis have been reported during outbreaks. The clinical, laboratory and neuroimaging findings of a 56-year-old man who initially developed Chikungunya fever with arthralagia and later on lead to Chikungunya myeloradiculopathy, a relatively unknown and rare complication of the infection has been presented.
Krishnan K M.,Sri Muthukumaran Medical College and research institute |
Amsavathani S.K.,Meenakshi Medical College and Research Institute
Journal of Global Infectious Diseases | Year: 2012
Background: The number of people living with human immunodeficiency virus (HIV) is increasing day by day in India. The disease has now spread from urban areas to rural areas. The proof reading of the reverse transcriptase enzyme is poor, which may lead to genetic diversity within the HIV strains, which in turn leads to problems like failure or resistance in antiretroviral treatment. This study is designed to find out the polymorphisms of the reverse transcriptase gene of HIV, after the native drug pressure among antiretroviral therapy (ART) nave rural people living with HIV/AIDS (RPLHA). Materials and Methods : A total of 207 HIV-Reactive patients were allowed to take native drugs from the local area and were advised to attend the center for HIV after six months for a follow-up. At the time of the follow-up visit, a second blood sample was taken from 20 reactive native-drug exposed ART-nave patients. The plasma was separated and transported at 20C to the YRG Care Center for genotyping. Results: Among the 20 HIV-reactive samples processed for gene sequencing analysis to detect the genotypic variations, only one sample (5%) showed high-level mutational resistance variations and the predominant polymorphisms detected were V35T (100%), K122E (94.44%), and V60I (88.88%). Conclusions: The presence of drug-resistance mutations, although minimal, was important, as the drug-resistant strains could spread among the RPLHA and to their sexual partners. There was a definite need to generate a drug resistance database and the polymorphic pattern of Indian strains concern to the future clinical management of the disease, and a vaccine design to contain the disease.
Gopinathan S.,Salem College |
Janagond A.B.,Sri Muthukumaran Medical College and research institute |
Agatha D.,Madras Medical College |
Thenmozhivalli P.R.,Villupuram Medical College
Journal of Clinical and Diagnostic Research | Year: 2013
Background and Aims: This study was done to detect the prevalence, risk factors for vaginal candidiasis in Chennai and to evaluate different methods for speciation of Candida isolates from vaginal candidiasis patients. This study was also aimed at detecting resistance patterns of Candida spp to common antifungals and at detecting mutant FUR1 genes in 5-Flucytosine (5 FC) resistant isolates. Materials and Methods: Two hundred clinically suspected vaginal candidiasis patients were screened for candidiasis and isolated Candida were speciated by standard morphological and biochemical tests (sugar fermentation and assimilation) and by using CHROM agar-Candida medium. Antifungal susceptibility was performed by disk diffusion method (CLSI M44-A) using fluconazole, itraconazole and 5FC disks. Five FC resistant isolates were subjected to PCR for detection of mutant FUR1 genes. Results: A total of 72 (36%) Candida spp. were obtained. Vaginal candidiasis was more prevalent in 31-40 years age group and among those with poor genital hygiene and who wore tight fitting synthetic/nylon underclothes. C.albicans (35), C.tropicalis (8), C.glabrata (21), C.krusei (4) were identified by both carbohydrate assimilation test and by using CHROM agar-Candida medium. C.kefyr (2) and C.parapsilosis (2) could not be identified using CHROM agar-Candida. Resistance to fluconazole, itraconazole and 5-flucytosine was seen in 19.44%, 23.61% and 41.66% of the isolates respectively. Mutant FUR1 gene was detected in all the Candida spp that were resistant to 5FC. Conclusion: C.albicans was the commonest species which caused vaginal candidiasis in Chennai. Though CHROM agar-candida medium is a useful differential isolation medium capable of early presumptive identification of Candida species, it could not identify C.kefyr and C.parapsilosis. Azole resistance was low in C. albicans but it was high in non-albicans Candida spp. Prevalence of primary resistance to 5-flucytosine was high in the strains studied and in all of them, it was mediated by mutant FUR1 gene.
Hameed Fathima K.,Sri Muthukumaran Medical College and research institute |
Harish V.S.,Sri Muthukumaran Medical College and research institute |
Jayavely P.,Eklavya Dental College |
Harinath P.,Srm Dental College
Journal of Pharmacy and Bioallied Sciences | Year: 2014
Dental implant associated rehabilitation of the posterior maxilla poses unique challenge owing to the presence of pneumatized sinuses and atrophied alveolar bone. Sinus augmentation procedure to manage expanded sinuses frequently results in membrane tear resulting in unfavorable stabilization of the graft and associated bone regeneration. Simultaneous implant placement during sinus augmentation procedures frequently requires a minimal alveolar bone height, which when not present forces clinician to defer implant placement resulting in extended treatment duration and multiple surgical appointments. The present case report is about a piezosurgery assisted lateral wall osteotomy approach for sinus augmentation associated with membrane repair with simultaneous implant placement in the posterior maxilla.
Mohanakrishnan K.,Sri Muthukumaran Medical College and research institute |
Kasthuri A.,Sri Muthukumaran Medical College and research institute |
Amsavathani S.K.,Meenakshi Medical College and Research Institute |
Sumathi G.,Sri Muthukumaran Medical College and research institute
Indian Journal of Medical Microbiology | Year: 2015
This study is designed to find out the mutational variations of reverse transcriptase (RT) gene of HIV, after the traditional drug usage among anti-retroviral therapy naïve rural people living with HIV/AIDS. HIV Reactive patients, who were exposed for indigenous medicines such as Siddha, Ayurveda etc., for a minimum period of 6 months were taken for this study. Among 40 patients, two samples (5.55%) demonstrated high-level mutational resistance variations for nucleoside RT inhibitor (NRTI) and non-NRTI. The predominant polymorphisms detected were K122E (91.7%), V60I (91.7%), V35T (89%), Q207E (89%), D177E (89%), T200A (86.1%), S48T (83.33%), K173A (80.6%). © 2015 Indian Journal of Medical Microbiology Published by Wolters Kluwer - Medknow.