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We raised an anti-glioma monoclonal antibody, named G-22, that specifically recognizes a human glioma-associated surface antigen. Proven to be useful for target imaging of malignant gliomas after radioisotope labeling and cerebrospinal fluid diagnosis by enzyme-linked immunospecific assay, G-22 was found to immunoprecipitate an 85-kDa glycoprotein of the human glioma U-251MG cell. We purified this antigen by G-22-coupled cyanogenbromide-activated Sepharose affinity chromatography, and sequence analysis demonstrated that the 54 amino acid residues were identical to positions 55-108 of human CD44. The results show that the smallest spliced form (85 kDa) of CD44 is strongly expressed in glioma cells.  相似文献   
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A variety of structural and functional congenital defects affecting the central nervous system of cattle have been identified. This article discusses specific defects of the central nervous system. Spastic and paralytic, metabolic, and storage diseases are reviewed.  相似文献   
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Fertility following bilateral ovarian wedge resection (BOWR) was evaluated in a retrospective cohort study of 90 consecutive cases of the polycystic ovary syndrome. Post-BOWR follow-up was available for varying time spans of up to 10 years. BOWR resulted in the resumption of menstrual cyclicity in 91.1% (82/90) of the cases. However, within this ovulatory group, 26 patients were characterized by oligo-ovulation and a significantly reduced conception rate (29.2%), as compared with that of 56 normo-ovulatory counterparts (60.3%). Although the crude overall conception rate for this series was 47.8%, the overall cumulative probability of conception at the end of follow-up as determined by life table analysis was 73%. The likelihood of conception at any given point in time was estimated by a monthly fecundability rate of 1.34%. Our findings also indicate that the probability of post-BOWR conception was unaffected by age, race, ward status, or duration of infertility. In contrast, persistent post-BOWR oligo- or anovulation and the presence of concurrent tuboperitoneal disease were reaffirmed as the most important determinants of the likelihood of post-BOWR conception. A minimum incidence of 7.8% was documented for acquired post-BOWR pelvic disease.  相似文献   
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