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Biomedical subjects

P Vasudevan

Publications and source records attributed to P Vasudevan.

21 records · Page 2Linked to original sources

Infertility in an XX male.

A case of an infertile male subject with 46XX female karyotype is reported. A testicular biopsy revealed hyalinized tubules with Sertoli cells and marked interstitial cell hyperplasia. Chromosomal studies showed the presence of 46 chromosomes with an XX sex chromosome constitution, confirmed with trypsin banding. XX male subjects present an interesting diagnostic problem and need to be differentiated from XXY male subjects with Klinefelter's syndrome. The clinical features of this rare syndrome are discussed and the literature is reviewed.

Adult↗

Treatment with atypical antipsychotics: new indications and new populations.

Atypical antipsychotics have revolutionized the treatment of schizophrenia, becoming the treatment of choice for patients not only during their first episode, but also throughout their life course. Of note, as of 1999 more than 70% of prescriptions for these drugs are being prescribed for conditions other than schizophrenia, such as bipolar disorder and geriatric agitation. While there have been very few controlled trials that have established the efficacy of the atypical antipsychotics for these "off-label" uses, there have been a large number of open trials and case reports. The few controlled trials suggest that the atypical antipsychotics may be useful for affective disorders (both mania and depression), geriatric conditions such as senile dementia and aggression, as well as a variety of other disorders. Atypical agents may be particularly helpful for elderly, child, or adolescent patients who are especially susceptible to the side effects of medications and whose risk of tardive dyskinesia is high but further controlled studies are necessary.

Adolescent↗

Blood-cellulosics interactions.

Biomedical applications of various Cellulosics have been reviewed and their interaction with blood is discussed. A new haemostatic agent 2,3,6 - tricarboxy cellulose "Supercel" has been produced by NO2 oxidation of 2,3 - dialdehyde cellulose and a possible mechanism for blood clotting initiated by Supercel is presented.

Biocompatible Materials↗