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Biomedical subjects

K Meenakshi

Publications and source records attributed to K Meenakshi.

10 recordsLinked to original sources

Intralobar sequestration of the lung presenting as a continuous murmur--a case report.

An eighteen-year-old asymptomatic woman with a continuous murmur, normal two-dimensional echocardiogram, and mild haziness of the left lower segment of the lung on chest x-ray was diagnosed to have sequestration based on the presence of a large anomalous systemic artery arising from the descending thoracic aorta supplying the lower lobe of the left lung. Normal bronchial connections with the rest of the lung on bronchoscopy and delayed dye clearance from the left lower lobe bronchioles on bronchogram indicated its intralobar nature. The cause of the continuous murmur was thought to be the large flow through the anomalous systemic artery.

Adolescent

Aortic dissection with a fistulous communication into the right atrium: a case report.

A case of aortic dissection (type 1, De Bakey) with a rent into the right atrium (RA), diagnosed by echocardiography (echo) and confirmed by aortography, is reported. The patient presented with cardiac failure and a continuous murmur in the right second and third intercostal spaces. The patient has survived for two years with medial treatment.

Adult

On the formation of crystal proteins during sporulation in Bacillus thuringiensis var. thuringiensis.

The processes of sporulation and crystal formation in Bacillus thuringiensis could be desynchronized, using short term temperature shift-up conditions or addition of chloramphenicol at the beginning of sporulation. Isolation of a Sp-, Cr+ mutant, blocked at early stage of sporulation further confirmed that crystal formation can occur in the absence of sporulation. The presence of one of the two antigenic subunits of the crystal protein in chloramphenicol treated cultures and both of them in cultures shifted up to 37 degrees C was demonstrated. The insect toxicity was exhibited by both the extracts.

Antigens, Bacterial