BACKGROUND: The nano-hydroxyapatite (NHA) biomaterials compounded with secondary phase or multiphase materials have been widely used in the domain of stomatology, and there have been several reports regarding the application of compounded NHA with composite resin. OBJECTIVE: To analyze the application progress of NHA in the domain of stomatology, and to prospect the potential significance of NHA in the stomatology materials. METHODS: Databases of Pubmed, EBSCOhost and China Journal Full-text were retrieved to screen out the articles. Inclusion crteria: ①The articles possess originality and dependable point and evidence. ②The articles have conclusive viewpoint and allround analyses. ③The agents of articles contact with this review closely.Exclusion criteria:repetition research and independent literatures with this review. And 24 literatures in accordance with the standard were selected in this study. RESULTS AND CONCLUSION: Many clinical application and animal experiments indicate that NHA has been extensively used in the oral surgery, endodontic, implantation and the other aspects, with the deeply research for combination of NHA and composite resin, NHA hopefully displays greater effectiveness in the stomatology materials.

BACKGROUND:With the development of researches on periodontal disease etiology and neuroendocrine factors, the role of neuroendocrine factors on the pathogenesis of periodontal disease and tissue restoration has become a hot spot.
OBJECTIVE:To summarize the biological effect of neuropeptides on periodontal tissues and the changes of periodontal tissue after nerve injury.
METHODS:A computer-based search of articles was performed in CNKI, Wanfang and PubMed databases using the key words ofneuropeptides, calcitonin gene related peptide, substance P, vasoactive intestinal peptide, neuropeptide Y and periodontal tissuein Chinese and English. The included articles focused on the effect of various neuropeptides on periodontal tissue.
RESULTS AND CONCLUSION:Calcitonin gene related peptide, substance P, vasoactive intestinal peptide, and neuropeptide Y positive nerve fibers are widely distributed in periodontal support tissues. When sensory nerves are damaged, the target cel s in periodontal tissues are influenced due to changes of nerve fibers distribution and neuropeptide release. They also play a role in the reconstruction of alveolar bone, immune function of periodontal ligament and periodontal tissue. This evidence shows that neuroendocrine factors are closely linked with periodontal tissue. However, these studies concentrated in the animal models for orthodontic and fracture, the effect of the neurotransmitters such as neuropeptides on periodontal disease and the mechanisms need further exploration.

Objective To evaluate the efficacy of the operation in the treatment of postoperative re-hemorrhage after splenec-tomy with periesophagogastric devascularization for advanced schistosomiasis. Methods Forty-three re-hemorrhage patients,who received varicose ligation combined with pericardial devascularization through left thoracic cavity with esophageal incision from Oc-tober 2002 to October 2011,after splenectomy with periesophagogastric devascularization due to portal vein hypertension,were in-vestigated retrospectively and followed up for 1 to 9 years. Results Forty-three re-hemorrhage patients operated included 27 cas-es of selective operation and 16 cases of emergency operation. The mean follow-up time was 6.8 years. The hemostasis rate was 100%. 0ne died after the operation because of engaging in heavy labor,two had melena and were completely relived with the con-servative treatment,and all the rest had a good recovery. Conclusion The operation of varicose ligation combined with pericardi-al devascularization through left thoracic cavity with esophageal incision in the treatment of postoperative re-hemorrhage after sple-nectomy with periesophagogastric devascularization for advanced schistosomiasis has a satisfied efficacy.

0.05), higher than those in the nighttime (t=3.63,3.16;P

Objective To investigate the effect of Kang' ai injection and Shenqifuzheng injection on liver function of patients with advanced primary liver cancer after being performed transcatheter arterial chemomembolization (TACE).Methods 120 patients with advanced primary liver cancer were randomly divided into three groups:a control group,a Kang'ai injection group,and a Shenqifuzheng injection group,with 40 patients in each group.All three groups were treated with TACE,and after TACE the control group was treated with anti-infection,inhibiting-acid,protecting-liver function and Shuganning tablets,20 ml/day.On this basis,the Kang'ai injection group was additionally injected with Kang'ai injection,40ml/day,and Shenqifuzheng injection group was additionally injected with Shenqifuzheng injection,250ml/day.All three groups were treated for 15 days.Liver function was tested and compared at the 3rd day,the 7th day and 14th day after TACE in all three groups.Results At the 14th day after TACE,ALT,AST,TBiL,and TBA of the Kang' ai group and Senqifuzheng group [(40.35 ± 10.10) μmol/L、(37.52 ± 10.57) μmol/L、(40.13 ± 8.36) μmol/L、(45.19 ± 19.65) μmol/L in Senqifuzheng group; (40.11 ±7.31) μmol/L,(34.99±9.38) μmol/L,(32.15±6.58) μmol/L,(40.75 ± 6.79) μmol/L in Kang'ai group] were greatly improved than the control group [(61.28 ± 13.38) μmol/L,(57.53 ± 13.36) μmol/L,(68.69± 7.25) μmol/L,(67.75 ± 17.88) μmol/L],with statistical significance (P＜ 0.01).Conclusion Kang'ai injiection and Shenqifuzhcng injection both can reduce liver function damage caused by TACE,thus they can be used together with TACE for treating advanced primary liver cancer.

Objective:To observe the repairment effects of vascular pediceled nervous tissue on adult rat＇s spinal cord injury. Method:A 5mm cord defect of the left lateral column was made at Ti-3 vertebral level,and then the defect was grafted randomly using vascdarized peripheral nerve (Group VPN),embryonic day 14 fetal spinal cord(Group FSC) or vascular pediceled peripheral nerve and fetal spinal cord(Group V + F).8 weeks after surgery, the survival,differentiation of the grafts, and the ability of repaired host spinal cord were assessed. Result: In VPN-FSC co-graft group, peripheral nerve segment was extensively vascularized and well innervated,plenty of Schwann cells survived and proliferated. In this group, anti-NF, S-100 positives fibers were significantly greater than group VPN (P＜0.01). The fetal implant was intimately fused with the host CNS parenchyma, the volume, nerve fibers and neurons density of the fetal implant were significantly higher than Group FSC(P＜0.01). The majority of neurons in this group were well differentiated, well-developed and synapses were scattered throughout the neuropil. SEP assessments showed that the latgncy of P1 ,N1 wave was significantly decreased in this group (P＜0.01).Conclusion:The vascular pediceled peripheral nerve could prompt the development of fetal implant and support the regeneration of central injured axons to certain degrees.

Objective To study the role of KuS0 in the treatment of esophageal cancer through inhibiting the Ku80 expression by shRNA. Methods shRNA-KuS0 vector was constructed. The effectiveness and feasibility of RNA interference were confirmed by Western blot and RT-PCR methods. The cell sensitivity to ganuna-rays was studied by colony formation assay. The effects of shRNA-Ku80 on cell cycle were observed by flow cytometry analysis. Results ShRNA-Ku80 vector was constructed successfully. Inhibition of Ku80 expression by shRNA enhanced the sensitivity of esophageal cancer cells to gamma-rays, shRNA K3 or shRNA H2 showed higher percentage of cells in G2/M phase (61.8% vs 28.6% ;64.3% vs 28.6%). Conclusions Inhibitions of Ku80 expression by shRNA play a role in the treatment of esophageal cancer. Ku80 might be a new target of tumor treatment.

Objective To clarify the role of protein kinase A (PKA),protein kinase C (PKC) and cyclin dependent kinase5 (CDK5) in the alterations of neurofialments (NFs) in 2,5-hexanedione (HD) induced toxic peripheral neuropathies. Methods HD was administrated to male Wistar rats by intraperitoneal injection at doses of 200 or 400 mg/kg,once a day,for 8 consecutive weeks. The relative contents of PKA,PKC,p35 precursor and CDK5 in spinal cord were determined by using SDS-PAGE and Western Blotting. Results In the cytosolic fraction of spinal cord,the levels of PKA and PKC in 400 mg/kg group significantly increased (P

3626 cases of abdominal cystic mass wereclassified by authors. Results showed that ovarycystic mass was the most common among them.there were 2653 cases in all, accounting for73. 167%. In this paper 88 cases that were compar-atively rare were classified in details, according tooriginal tissue inflammatory cystic mass and reten-tive hydrops were the mose common, there were40 cases in all (45. 45%), congenital cystic masswas the second, 26 cases (29. 55%), developing lo-cation abserved was the most common in meson-tery, 32 cases (36. 36%), the second in abdominalcavity, and then, retroperitoneum, appendix, ete.

Objective To compare the survival of Schwann cells and the effects of induce axon regeneration after peripheral nerve grafted into spinal cord Methods A total of 30 adult,female Wistar rats were used in this study,and a 5 mm cord defect of the left lateral column was made at T 1 3 vertebral level The defect was grafted randomly using vascularized (group VN) or free peripheral nerve (group PN) respectively 8 weeks after surgery,the survival and proliferation of Schwann cells were assessed by histological,histomorphometric analysis Results In group VN,peripheral nerve segment was well innervated,plenty of Schwann cells were survived and proliferated In this group,anti NF,S 100 positives fibers were significantly greater than group PN Conclusion The vascularized peripheral nerve could prompt the survival and proliferation of Schwann cells and support the regeneration of central injured axons to certain degrees