Objective To probe into the effect of nursing intervention on complications and compliance of cancer patients with PICC. Methods 86 tumor patients selected from June 2007 to June 2010were randomly divided into the intervention group and the control group with 43 patients in each group. After the two groups of patients were diagnosed they were treated with routine care, the intervention group wasgiven additional comprehensive nursing interventions aiming at PICC complications and compliance. The complications and treatment compliance of the patients were analyzed. Results Compared with the control group, the rate of full compliance significantly improved and the rate of partial compliance significantly decreased in the intervention group. At the same time, compared with the control group, the incidence rate of phlebitis, catheter-related bloodstream infection and catheter blockage and catheter off of the intervention group were significantly lower. Conclusions Nursing intervention for cancer patients with PICC can reduce complications and improve treatment compliance of them and is of great clinical significance.

BACKGROUND: Miniscrew plant attachment to maxillary sinus is an important factor for implant safety and bone density can influence implant stability. Studies have explored implantation location of implant anchorage, such as bone thickness or bone density. However, the idea on implantation angle remains controversial. OBJECTIVE: To investigate the relationship between miniscrew implant in the interradicular space between the second premolars and the first molars in the maxilla and the maxillary sinus as well as bone density in the surroundings. DESIGN, TIME AND SETTING: Observation experiment was performed at dinan University from October 2007 to May 2008. PARTICIPANTS: A total of 38 patients with cone beam CT data were selected from Uni-Care Dental Center, Macao, including 11 males and 27 females, aged 18-35 (24.8±3.8) years. METHODS: Three dimensional images were reconstructed from cone beam CT images. For each subject, the buccolingual bone thickness was measured by postulating that the miniscrews would be inserted at 16 positions (10, 12, 14 and 16 mm above the median sagittal planes of the interradicular spaces between the first molars and the second premolars in the maxilla, and 30°, 45°, 60°, 90° from the cortical bone surface). The danger rate representing for implantation sites where buccolingual bone thickness was less than 6 mm was calculated. The density of the bone around the entire circumference of each miniscrew was also measured. MAIN OUTCOME MEASURES: Height of maxillary sinus, buccolingual bone thickness at implantation sites and bone density. The implantation sites could be divided into three groups. Group 2 exhibited the greatest danger rate and bone density and group 1 had the lowest danger rate and bone density.

Objective To investigate the CD34~+ umbilical cord blood hematopoietic stem cells (CD34~+ UBSC) transfected with interleukin 21 (IL-21) against the ovarian cancer effect in tumor-bearing nude mice. Methods CD34~+ UBSC were obtained from the UBSC by a magnetically activated cell sorting technique and then transfected with recombinant plasmid plRES2-IL-21-EGFP after the CD34~+ UBSC were proliferated in vitro. The therapeutic effect was evaluated by the size of the tumor and the life span in nude mice treated with the CD34~+ UBSC-IL-21. The expression of IL-21 and its bioactivity in CD34~+ UBSC-IL-21 and in local neoplasitc tissues were respectively detected by reverse transcription-polymerase chain reaction (RT-PCR), immune fluorescence technique, ELISA, Western blot, immunohistochemistry and splenocyte proliferative activity. The NK cell cytotoxicity and the numbers of NK cells, serum level of IFN-γ and TNF-αwere simultaneouly detected by FCM and ELISA, respectively. Results CD34~+ UBSC were cultured and transfected with pIRES2-IL-21-EGFP successfully. CD34~+ UBSC-IL-21 could inhibit the tumor growth and extended nude mice life span compared with other groups (P < 0.01). The expression of IL-21 in the neo-plastic tissue, serum level of IFN-γ and TNF-α , NK cell activity and the numbers of NK cells of mice origin and of human origin in splenocytes were increased significantly in the nude mice treated with CD34~+ UBSC-IL-21 compared with other groups(P <0.01). Conclusion The CD34~+ UBSC transfected with IL-21 have competent against ovarian cancer in tumor-bearing nude mice. The findings may establish a foundation for gene therapy of the ovarian cancer by CD34~+ UBSC-IL-21 in clinic application.