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Biomedical subjects

E Vallikad

Publications and source records attributed to E Vallikad.

6 recordsLinked to original sources
PubMed2003

Trophoblastic hyperthyroidism.

Hyperthyroidism can occur secondary to gestational trophoblastic disease. The clinical and biochemical data of four women who had hyperthyroidism secondary to gestational trophoblastic disease was analyzed. The parity ranged from primi to gravida four and the period of amenorrhoea from six weeks to sixteen weeks. Three women had vomiting, two had bleeding per vaginum and two had tachycardia and minimal thyromegaly. The betahCG was more than 5,00,000 mlu/ml in all the cases. Three women required treatment for the hypermetabolic status and one woman had biochemical hyperthyroidism. Two of them had molar pregnancy, one had partial mole and one had persistent trophoblastic disease.

Adult↗
PubMed2000

Multifocal aggressive angiomyxoma: a case report.

A case of aggressive angiomyxoma in a 25 year old woman is presented. The patient was admitted to hospital with a history of hesitancy of micturation and pain in the right iliac fossa. She was found to have a left labial mass, which was clinically diagnosed to be a Bartholin gland cyst. A pelvic ultrasound revealed an additional mass in the right paravesical region. At surgery, two distinct masses were removed, one from the right perivesical space and the other from the left labium. Both masses were rubbery, white, and gelatinous and showed similar histopathology findings of thick and thin walled vascular channels set in a loose myxoid stroma. A diagnosis of multifocal aggressive angiomyxoma was made. This is the first reported case of aggressive angiomyxoma occurring as two distinct masses in one patient.

Adult↗
PubMed1997

The link between integration and expression of human papillomavirus type 16 genomes and cellular changes in the evolution of cervical intraepithelial neoplastic lesions.

We have matched a PCR assay which detects disruptions in the E2 reading frame of human papillomavirus type 16, with RNA in situ hybridization patterns and shown that in 15 out of 16 cervical intraepithelial neoplastic (CIN) III lesions and in 19 out of 19 tumours, the E2 gene is disrupted with no detectable E2 transcripts. Varying levels of E6-E7 transcripts are detected in CIN III lesions, with stronger signals in tumours. The cytokeratin profile of most tumours: cytokeratin 10-, 14- and 19-positive and 4-, 13- and 18-negative, is also detected in CIN III lesions. The changes in levels of alpha 2, beta 1 and beta 4 integrins, CD44 and E-cadherin occur during the evolution of high-grade CIN lesions. Increases in the levels of expression of CD44 and E6-E7 transcripts, coupled with changes in the cellular localization of the Notch protein, define the transition from CIN III lesions to tumours.

Cadherins↗
PubMed1997

Dysgerminoma of the ovary: a retrospective study.

A retrospective analysis of 22 patients with ovarian dysgerminoma who were treated between 1980 and 1987 was carried out. The median age at presentation was 24.5 years. A total of 15 patients were in stage I, one patient was in stage II and six patients were in stage III. Bilateral ovarian involvement was present in four patients. Conservative surgery was carried out in nine patients and 11 patients underwent radical surgery. Two patients had biopsy only. Fourteen patients received adjuvant radiotherapy and three patients received salvage radiation for recurrent disease. The 10-year actuarial survival rate was 81.8%. All 15 patients in stage I were alive and disease-free at a median follow-up of 125 months. Four patients (one in stage II and three in stage III) died of progressive or recurrent abdominopelvic disease. Pelvic recurrence occurred after conservative surgery in two patients in stage IA who had a tumour size greater than 10 cm, but they were salvaged with radical surgery, chemotherapy and radiotherapy. There were seven patients aged 20 years or less. All were alive and disease-free at a median follow-up of 127 months.

Adolescent↗
PubMed1995

Changes in the physical state and expression of human papillomavirus type 16 in the progression of cervical intraepithelial neoplasia lesions analysed by PCR.

Using a PCR strategy which detects disruptions in the E2 reading frame we have analysed the progression of human papillomavirus type 16 (HPV-16)-positive cervical lesions. From a total of 192 samples analysed, we detected HPV-16 in 74. In samples from the spectrum of inflammatory states and cervical intraepithelial neoplasia (CIN) grade I lesions we detected episomal forms of the virus. In invasive tumours and in samples from CIN III lesions there were no episomes detected, suggesting that lesions with integrated HPV-16 precede the invasive stage. The RT-PCR analysis demonstrated the presence of E6 transcripts at all stages and E2 transcripts in all early lesions. The E2 transcripts were not detected in 26 out of 29 CIN III lesions and tumours in which there was a disruption in the E2 gene. In tumours with E2 gene disruptions, we used single-primer PCR to demonstrate the presence of E2 gene sequences.

DNA Primers↗