TASK DEFINITION: Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
PROBLEM: Abstract: A series of monoclonal antibodies (mAb) was raised in mice against Schistosoma mansoni, which recognized a carbohydrate determinant on a major Mr greater than 200,000 schistosomulum surface antigen. These mAb cross-reacted with the surface of cercariae and miracidia and with schistosomula of S. haematobium and S. bovis. Other mAb were generated that only recognized a Mr 20,000 schistosomulum surface antigen; they did not cross-react with eggs or miracidia and were species specific. The anti-Mr 20,000 mAb of the IgG1 isotype exhibited high levels of complement-dependent cytotoxicity to schistosomula in vitro. IgM mAb that recognized carbohydrate epitopes of the Mr greater than 200,000 surface antigen blocked the lethal activity of the anti-Mr 20,000 mAb. The IgM anti-Mr greater than 200,000 mAb also reduced complement-dependent cytotoxicity of serum from mice vaccinated with irradiated cercariae.

SOLUTION: Animal

PROBLEM: Abstract: A case of bilateral patella tendon rupture in an otherwise healthy 38-year-old man who sustained relatively minor trauma is presented. A flexion moment against a contracted or contracting quadriceps muscle is thought to have been the mechanism of injury. A survey of the literature yielded reports of three other cases of otherwise healthy patients who had had bilateral simultaneous disruption of the patella tendons.

SOLUTION: Adult

PROBLEM: Abstract: Seventy-seven samples of healthy and diseased vulvar epithelium (one per patient) were processed using the carbon-coated-dextran biochemical technique. The results were analyzed according to Scatchard or the unique point technique. The samples of normal tissue were obtained from patients who underwent surgical procedures for different gynecologic pathologies. The samples of diseased tissue were obtained with punch biopsy from patients with several vulvar disorders. Ten samples were obtained from the episiotomy wound in pregnant patients during labor. Estrogen receptors were assayed in all cases. Progesterone receptors were assayed simultaneously in 73 of the cases. The minimum concentration considered positive was 2 fmol/mg of protein. A map of the vulvar region was drawn, and samples were obtained from different sites whenever possible.

SOLUTION:
Comparative Study