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A Anitha

Publications and source records attributed to A Anitha.

8 recordsLinked to original sources
PubMed2006

Association analysis of SOD2 variants with methamphetamine psychosis in Japanese and Taiwanese populations.

SOD2 (superoxide dismutase 2) plays a crucial role in protecting the cells against damage caused by free radicals, by catalyzing their detoxification. On the other hand, cell damage caused by free radical generation following methamphetamine administration has been postulated as one of the possible pathophysiological mechanisms for methamphetamine psychosis. Hence, we investigated the association of SOD2 polymorphisms with the development of methamphetamine psychosis, in two independent populations of Japan and Taiwan. We recruited 116 patients with methamphetamine psychosis and 189 controls in Japan, and 135 patients with methamphetamine psychosis and 204 controls in Taiwan. The methamphetamine group was divided into two clinical subtypes: a transient type of psychosis (i.e., good prognosis) and a prolonged type of psychosis (i.e., poor prognosis), according to the course of the manifestation of psychosis. With reference to the genotypic and allelic frequencies of Ala/Val functional polymorphism in exon 2, we found significant differences between individuals with prolonged methamphetamine psychosis and control samples from Japan and Taiwan in the genotypic (P value 0.014 and 0.016, respectively) and in the allelic (P value 0.004 and 0.047, respectively) frequencies. Our results suggest that Ala/Val polymorphism of the SOD2 gene could be associated with the risk of developing methamphetamine psychosis.

Adolescent↗
PubMed2003

Arylamine N-acetyltransferase 2 polymorphism in the ethnic populations of South India.

The human N-acetylation polymorphism is a genetic trait phenotypically reflected by differences in N-acetyltransferase (NAT) activity with therapeutic agents (rapid and slow acetylation). Acetylation polymorphism arises from the allelic variations in human arylamine N-acetyltransferase 2 gene (NAT2), which results in the production of NAT2 proteins with variable enzyme activity or stability. Certain NAT2 traits may contribute to the occurrence of adverse drug effects and act as susceptibility factors for certain malignancies such as bladder or lung cancer. We report the results of NAT2 genotyping of ethnic communities in South India. One hundred and sixty-six unrelated individuals belonging to eight Dravidian ethnic communities of South India, with typical Dravidian features, were genotyped for their acetylation status. Slow acetylators were found to be predominant in these populations, with a frequency of 74%. The allele 6A was found in the highest frequency, while 5B/6A was the most frequent genotype. A novel deletion at 859 site was observed in one of these communities; this heterozygous deletion was linked to a homozygous mutation at 481 site. The predominance of slow acetylator genotypes in our study populations conforms to the results in most other Asian populations, where approximately 60% of the individuals have been genotyped as slow acetylators. Sex specificity for acetylator status in our study varied from population to population.

Arylamine N-Acetyltransferase↗
PubMed2002

A comparative study of the intestinal parasites prevalent among children living in rural and urban settings in and around Chennai.

A comparative analysis of the various intestinal parasites detected among children attending schools was carried out in a rural and urban location in and around Chennai. A total of 324 stool samples were examined by routine microscopy using normal saline and Lugol's iodine preparation as well as by saturated sodium chloride flotation technique. All suspicious samples were subjected to zinc sulphate concentration technique as well as modified Ziehl Neelson stain and Trichrome stains to identify the other uncommon intestinal parasites. Out of 125 specimens tested from the rural location, the overall prevalence of intestinal parasites was 91%. Ascaris lumbricoides was the most common helminthic parasite detected (52.8%) followed by Trichuris trichura (45.6%), Ancylostoma duodenale (37.6%), Strongyloides stercoralis (3.2%) and Hymenolepis nana (1.6%). Giardia lamblia was the most common protozoan parasite detected (16%), followed by Entamoeba histolytica (4%). In contrast under urban settings, out of the 199 stool specimens tested the positivity rate was 33%. Giardia was the most common parasite detected (22.6%) followed by Entamoeba histolytica (10.6%). All other intestinal parasites such as T. trichura (2.01%), H. nana (1.01%) and A. lumbricoides (0.50%) were found to have much lower prevalence in comparison to the rural area tested. Enterobius vermicularis (0.50%) was also detected. Ancylostoma duodenale and Strongyloides stercoralis were not encountered at all in the urban setting studied.

Adolescent↗
PubMed2001

Prevalence, species distribution and antifungal sensitivity of vaginal yeasts in infertile women.

A total of 326 high vaginal swabs from infertile women attending the Institute of Reproductive Medicine were cultured from June 1999 to May 2000. Candida species was isolated from 42(12.88%) patients. Candida albicans (40.47%) followed by Candida glabrata (38.09%) were the most common isolates. Other species included Candida tropicalis (14.28%) and Candida krusei (7.14%). All isolates were tested for sensitivity by disc diffusion method on Yeast Nitrogen Agar base towards four antifungals. Seven (16.7%) candida strains showed resistance to Fluconazole and 19(45.23%) of the strains showed resistance to Itraconazole, and 4(9.5%) strains showed resistance to Nystatin. There was no resistance to Amphotericin B. Of the 7 strains resistant to Fluconazole, 3 were Candida krusei, 3 were Candida glabrata and 1 was Candida tropicalis.

Adult↗