RESUMO
Anatomical features of the lamina and petiole of 11 species of Salvia had been compared. The microstructures of 11 species of Salvia were observed by paraffin method, and indexes such as the epidermis, xylems and phloems were measured. The data set was analyzed by principal components analysis method and cluster analysis method. The results indicated that the laminae of 11 species of Salvia were bifacial leaf, and the surface of laminae and petioles were covered with villous. The upper epidermis and lower epidermis of the laminae of 11 species of Salvia were constituted by a dense cuticular layer without stratum corneum. Differences existed in the structure of cross sectio mn of laminae and petioles of 11 species of Salvia. Among them, upper epidermal thickness of nine different micromorphological characters could serve as one of the criteria to identify species of taxonomic Salvia. The identification of genetic relationship of these characters in Salvia were discussed in the paper to provide an evidence of anatomy in Salvia.
Assuntos
Análise por Conglomerados , Folhas de Planta , Salvia , ClassificaçãoRESUMO
Objective To investigate the management of drug-resistant epilepsy in patients with dysembryoplastic neuroepithelial tumor (DNT). Methods Surgical experiences of 14 patients with DNT in our hospital were retrospectively reviewed. According to the EeoG during the operation and preoperative evaluation, the epileptic foci were managed when the tumor resection was performed. Results The tumors were cut off completely in all the patients; no radiotherapy or chemotherapy was performed after the operation; no recurrence or metastasis of the tumor was found. Engel Ⅰ outcome (seizure-free) was noted in 11 patients and Engel Ⅱ outcome (rare seizure) was noted in 2; frequent seizure was found in 1 after the first operation and seizure-free was achieved after the resection of epileptic foci around the tumor. Conclusion The DNT should be treated as having malformation in the cortical dysplasia and management of epileptic foci around the tumor shows favorable results in the controlling of epilepsy.
RESUMO
Objective To investigate the relation between noggin expression changes and granular cell proliferation in the dentate gyrus subgranular zone (DG-SGZ) in rats with kainic acid (KA)-induced hippocampal injury. Methods Thirty-two adult male SD rats were randomly assigned into KA injury group (n=16) for intracerebroventricular KA injection and control group (n=16) which received intracerebroventricular normal saline injection (n=8) or no treatment (n=8). Nissl staining was used to assess the cell loss in the hippocampus, and in situ hybridization and immunofluorescence staining was used to detect noggin expression and BrdU-labeled cells in the DG-SGZ. Results The BrdU-labeled cells were found mainly in the DG-SGZ, and noggin mRNA-positive cells mainly in the hilus, DG-SGZ, CA3 and CAI area of the hippocampus. Seven days after KA treatment, substantial cell loss was found in the CA3 and CA4 areas, and the number of BrdU-labeled cells in the DG-SGZ markedly increased as compared with that in the saline group, especially on the same side of injection (P=0.006). The number of noggin mRNA-positive cells in the hippocampus significantly increased 3 days after KA injection, and began to decrease on day 7. Conclusion The granular cell proliferation in the DG-SGZ after KA-induced rat hippoeampal injury is probably associated with noggin expression changes in the hippoeampus.