OBJECTIVE:To investigate characteristics and regularity of ADR induced by antineoplastic drugs and provide ref-erence for the safe drug use. METHODS:7 417 ADR reports induced by antineoplastic drugs from 91 hospitals from 2009 to 2013 were collected in the ADR monitoring center of PLA. According to the classification in national ADR monitoring cencer,Excel soft-ware was performed to statistically analyze the data. RESULTS:Among 7 417 ADR reports,1 475 were severe ADR(19.89%), 196 were the new and general ADR(2.64%),and 44 were new and severe ADR(0.59%);the elderly patients aged from 45-59 years accounted for the highest proportion (41.01%);intravenous administration was the main administration route causing ADR (88.96%);the incidence of antineoplastic drugs was higher in plant-derived drugs(26.55%),platinum drugs(24.86%)and an-ti-metabolism drugs (19.46%);ADR mostly manifested as lesions of digestive system (38.80%),blood system (16.53%) and general system(12.79%);43.60%ADR occurred within 12 hours after administration. CONCLUSIONS:Highly poisonous,nar-row-range security antineoplastic drugs could easily induce ADR. Risk prevention of antineoplastic drugs should be strengthened to undertake monitoring for high-risk patients and antineoplastic drugs,and severe ADR. More attention should be attached to the reac-tions after 12 h administration to reduce ADR incidence as much as possible.

Objective To explore the safety and effectiveness of early microsurgical removal of low-grade (Spetzler-Martin Ⅰ-Ⅱ) bleeding arteriovenous malformations. Methods The clinical data of 31 patients with low-grade AVM by microsurgical treatment in our hospital from October 2009 to December 2015 were retrospectively reviewed in the acute stage of bleeding (within the first week after bleed). All patients showed a cerebral AVM on DSA or CTA at admission, 18 of whom underwent intraoperative ultrasound. Neurological outcomes were assessed with Glasgow outcome scale (GOS) after operation. According to the GOS scores, the patients were divided into good prognosis group (scores of 4-5) and poor prognosis group (scores of <4); the differences of preoperative clinical data between the two groups were compared. After operation, cerebral DSA or CTA was performed. According to the postoperative brain AVM with or without residual, the patients were divided into residual group and no-residue group; the differences of the clinical data and use of ultrasound in operation were analyzed statistically between the two groups. Results A favorable functional outcome was observed in 27 patients (87.1%); as compared with that in the poor prognosis group, the proportion of Glasgow coma scale (GCS) scores>8 and young patients in the good prognosis group was significantly higher (P<0.05). In 31 patients, there were 5 with residual brain AVM (total residual rate 16.1%); the proportion of patients with Spetzler-Martin grading (SMG) I in the residual group was significantly lower than that in the no-residue group (P<0.05). There was no statistically significant difference in the proportion of intraoperative ultrasound use between the two groups (P>0.05). Conclusions Early microsurgery for grade Ⅰ-Ⅱ bleeding AVMs is a safe and definitive treatment with intraoperative ultrasound, achieving both immediate cerebral decompression and protection against rebreeding, reducing hospital stays and allowing a more rapid rehabilitative course whenever necessary. Patients who are younger or with GCS scores>8 may have a better prognosis and high complete resection is achieved in those with SMG Ⅰ.

OBJECTIVETo study the bone marrow mesenchymal stem cells (MSC) settled in rats after small intestinal transplantation.

METHODSBone marrow MSCs were taken from 1-month male Lewis rats, isolated and cultured by density gradient centrifugation and differential adherent culture. The surface antigens (CD29, CD90, CD34 and CD45) of MSC were identified by flow cytometry. Final concentration of 5 μg/L CFSE was used to mark the third generation of MSCs. Adult male inbred line F344 rats were used as donor and adult male Lewis rats as acceptor. A heterotopic intestinal transplant rat model was established by F344 to Lewis. Labeled MSCs were injected into model rats through vena dorsalis penis after operation. Tissues at postoperative 7-day were collected for frozen pathology to reveal the location of transplanted MSCs under fluorescence microscope.

RESULTSMSCs were successfully isolated from rat bone marrow. The average positive expression rates of surface antigens CD29, CD90, CD34 and CD45 were 96.48%, 99.77%, 2.41% and 1.39% respectively. MSCs were successfully and effectively marked with CFSE. Seven days after operation, a large number of green fluorescence could be observed in transplanted intestine, spleen and thymus. Autograft intestinal tissues only showed trace fluorescence, and the heart, liver and lung tissue basically did not present the green fluorescence.

CONCLUSIONBone marrow MSCs can settle in transplanted small intestine of rat.