Objective To evaluate the effect of surgical treatment of hypertensive intracerebral hemorrhage (HICH) through a straight incision and keyhole minimally invasive craniotomy. Methods According to the location of the hematoma revealed by preoperative CT scans, a straight skin incision was made 4～5 cm in length, and then a keyhole craniotomy 2 cm in diameter was performed. The underlying cortex was incised the hematoma was exposed and removed under microscope. Results The hematomas were thoroughly cleared in 17 cases. The clearance rate was 90% in 18 cases and 80% in 4 cases. Re-hemorrhage occurred in 2 cases after operation. A total of 35 cases was followed for 0.5～3 years (mean, 2.1 years). The quality of life was assessed by activity of daily living (ADL) classification, which revealed 9 cases of grade 1, 12 cases of grade 2, 9 cases of grade 3, 4 cases of grade 4, and 1 case of grade 5 at the 6th postoperative month. The mortality of this series was 10.3% (4/39). Conclusions Straight incision keyhole minimally invasive craniotomy is a rapid, effective, and safe technique for the removal of hypertensive cerebral hemorrhage. The method herein provides an effective decompression of hematoma, with low recurrence rate and good prognosis compared with conventional surgery.

Objective To explore the clinical effents of bevacizumab on the recrudescence of the limbal corneal epithelial cell auto-graft transplantation in treating patients with pterygium.Methods The clinical data of 75 cases(99 eyes) with pterygium were retraspectively reviewed,and they were divided into 3 groups by different conservative treatment.A group:the limbal corneal epithelial cell auto-graft transplantation combined with bevacizumab.B group:the limbal corneal epithelial cell auto-graft transplantation combined with MMC.C group:the limbal corneal epithelial cell auto-graft transplantation.After follow-up for 3 months,the curative effect and recurrence were compared between the two groups.Results The recurrence of three groups was significantly different( x2 =12.267,P ＜ 0.05 ).The reccurrence rate of A,B,C group were 12.1％,15.2％,45.5％.The recurrence rate of A group and B group wasn't significantly different(x2 =2.117,P ＞0.05).The recurrence rate of B group and C group wasn't statistically different( x2 --3.930,P ＜ 0.05 ).The recurrence rate of A group and C group was significantly different( x2 =4.155,P ＜ 0.05 ).After 1 week,all patients had different degrees of eye pain,photophobia or tearing,and disappeared after 1 week;2 patients in group B found that limbal shallow scleral necrosis,superficial punctate keratitis.The average time of removal of stitches in group A was 5.9d,group B was 7.0d and group C was 7.5d.Conclusion Bevacizumab could obviously reduce the recrudescence of the limbal corneal epithelial cell auto-graft transplantation in treating patients with pterygium.It was safe with less complications and good prognosis.It was worthy for being widely used in treatment of pterygium.

Aim To construct the eukaryotic expression vector of hIL-24 cDNA,and express it in CHO cells and detect its anti-tumor effect of recombinant hIL-24 protein.Methods Constructed pcDNA3-hIL-24 was identified by endonucleases digestion & PCR.The recombinant expression plasmids were transfected into CHO cells,human hIL-24 expressed in CHO cells was detected with RT-PCR.The apoptosis-inducing activities of recombinant protein hIL-24 was tested by MTT assay,Hoechst& FCM assay,and the expression of IL-6 and IFN-? from PBMC induced by rhIL-24 was tested by ELISA.Results The eukaryotic expression vector pcDNA3-hIL-24 was constructed correctly.Stable expression of human IL-24 in CHO cells was identified with RT-PCR.The apoptosis of A549 cells induced by hIL-24 was proved by Hoechst & FCM assay,and the expression of IL-6 and IFN-? from PBMC induced by rhIL-24 was identified with ELISA.Conclusion The successful stable expression & experimental study of apoptosis effect of human IL-24 gene lay the foundation for the further study of molecular mechanism of hIL-24 on anti-tumors and potential application.

Objective To study the antitumor effect and mechanism of co-cultured cytokine-induced killer(CIK) cells and autologous DC modified with IL-24 gene on A549 cells in vitro. Methods DC and CIK cells were prepared routinely from human peripheral blood mononuclear cells(PBMC). Recombinant adenovirus vector pAdEasy-1-pTrack-CMV-IL-24 was extracted from DH5α, it was lineared with Pac I and transfected into A293 cells, and then the IL-24 recombined adenovirus(Ad-IL-24) was obtained. Ad-IL-24 was used to infect DC. The cells obtained were named DC-IL-24. RT-PCR and ELISA were used to evaluate the expression of IL-24 gene in transfected DC. The phenotypes change of DC were identified by flow cytometry analysis, the concen-tration of IL-12 and TNF-α in supernatant of DC were determined by EIJSA. The ability of CIK producing per-forin was measured by homolysis method. FCM was used to determine the cytotoxicity of cocultured CIK cells and autologous DC modified with IL-24 gene to A549 cells. Results We obtained the high titre of Ad-IL-24.IL-24 gene was transfered into DC successfully via Ad-IL-24. The green fluorescence was observed on DC by fluorescence microscope. The expression rate of CD80, CD83, HI.A-DR, CD40, CXCR4 on DC-IL-24 was sig-nificantly increased compared with that of the control group. DC-IL-24 produced markedly higher levels of IL-12 and TNF-α as compared with DC. DC-IL-24 can enhance the ability of CIK cells producing perforin. On com-parison with non-transfected DC co-cultured with CIK cells, transfected DC co-cultured with CIK cells had a sig-nificantly higher lytic activity against A549 cells. Conclusion IL-24 gene modification can enhance the anti-tu-moral immunity of DC. The mechanism of which might be related to the increased secretion of IL-12 and TNF-α, up-regulation expression of co-stimulatory molecules and MHC Ⅱ class molecules on DC, promoting the acti-vation and maturation of DC, and then enhancing CIK cells to generate specific anti-tumoral immunity.

Objective:To study the antitumor effect and mechanism of cocultured CIK cells modified with IL-24 gene and autologous DCs on HL-60 cells in vitro.Methods:DCs and CIK cells were prepared routinely from human peripheral blood mononuclear cells ( PBMC).IL-24 gene was transferred into CIK cells via electroporation.The cells obtained were named CIK-IL24.RT-PCR and ELISA were used to evaluate expression of IL-24 gene in transfected CIK cells.The phenotypic changes of CIK cells were identified by flowcytometry analysis.The concentration of IFN-γ and TNF-α in supernatant of CIK was determined by ELISA.FCM was used to determine the cytotoxicity of cocultured CIK cells modified with IL-24 gene and autologous DCs against HL-60 cells.Results:Eukaryotic expressing plasmid pcDNA3.0-IL24 was transferred into CIK cells successfully via electroporation.The expressing rate of CD3~+、CD3~+CD56~+ cells had no significant change in CIK cells.However,the rate of CD4~+CD25~+ cells was significantly decreased compared with that of the control group.Expression of adhesion molecules CD54,CXCR4 were significantly increased on CD3+CD56+ cells.CIK-IL24 cells produced markedly higher levels of IFN-γ and TNF-α as compared with the CIK cells.By comparison with non-transfected CIK cells co-cultured with DCs,transfected CIK cells co-cultured with DCs had a significantly higher lytic activity against HL-60 cells.Conclusion:IL-24 gene modification can enhance the anti-tumoral immunity of CIK cells,the mechanism of which might be related to the increased secretion of IFN-γ,TNF-α,up-regulation of adhesion molecule expression,and reduction of the rate of CD4~+CD25~+ cells in CIK cells.

BACKGROUND:Statins can promote the mRNA expression of bone morphogenetic protein 2, aggrecan and type II col agen in intervertebral disc cel s, and they also can reverse the phenotype of dedifferentiated nucleus pulposus cel s to slow disc degeneration process. OBJECTIVE:To review the research progress of simvastatin modulating the biological characteristics and mobilizing endogenous stem cel s for the repair of intervertebral disc degeneration. METHODS:The first author retrieved the PubMed and CNKI databases for relevant articles published before January 2016 using the key words of“disc degeneration factor, Simvastatin AND stem cel s, endogenous stem cel s AND disc degeneration”in English and Chinese, respectively. Initial y, 102 relevant articles were retrieved, but only 48 articles were included in result analysis fol owing elimination of duplicate studies.RESULTS AND CONCLUSION:By summarizing a large number of studies on the treatment of intervertebral disc degeneration worldwide, we found that simvastatin may modulate the biological characteristics and function of nucleus pulposus mesenchymal stem cel s via promoting the expression of hypoxia-inducible factor 1αfor the endogenous stem cel-based therapy of intervertebral disc degeneration.

We retrospectively analyzed the clinical manifestations,treatments and prognosis of infective endocarditis (IE)associated with renal lesions in children.There were 23 confirmed IE cases who were admitted to the Capital Institutes of Pediatrics from 1992 to 2012.There were 6 cases (26％) with renal lesions.Renal lesions included asymptonatic microscopic hematuria(1 case),asymptomatic proteinuria (1 case) and acute nephritic syndrome (4 cases).There were 3 cases of acute renal injury (AKI) resulted from nephritis accompanied with acute heart failure.The serum level of C3 was lower in patients with renal lesions than patients without renal lesions (P ＜ 0.05),but the clinical manifestations,physical signs and other laboratory findings were the same.Patients of both groups were treated with antibiotics.All patients were recovered and discharged.The average hospital days were (39.2-± 15.2)days for patients with renal lesions and (34.9-± 19.2) days for patients without renal lesions (P ＞ 0.05).Renal lesions secondary to IE are relatively common in IE patients in children.Most of renal lesions can be improved by effective antibiotics.Prognosis of those patients accompanying with AKI is bad.

BACKGROUND:L-type calcium channels, as a kind of voltage-dependent calcium channel, is the main way of extracellular calcium ions into the cell, and play an important role in maintaining cellmorphology and physiological activities, characterized by a large single-channel conductance, slow channel attenuation, and longer duration of channel opening. Previous studies showed that basic fibroblast growth factor can promote the proliferation of chondrocytes cultured in vitro.
OBJECTIVE:To explore the effect of the L-type calcium channels on regulating chondrocyte proliferation and differentiation in response to basic fibroblast growth factor with patch-clamp.
METHODS:The chondrocytes were harvested from the joints of 3-day-old New Zealand rabbits. The second passage of chondrocytes was divided into experimental group and control group. Chondrocytes were incubated in media containing 10μg/L basic fibroblast growth factor and media alone separately. The opening of L-type calcium channels under the action of basic fibroblast growth factor was detected by patch-clamp. The intracellular calcium concentration was detected with laser confocal microscopy in the chondrocytes after 2 weeks of culture with basic fibroblast growth factor. Chondrocyte proliferation was analyzed by cellTiter kit after 8 days of culture. Type Ⅱ col agen was assessed quantitatively by immunohistochemistrical staining after 10 days of culture.
RESULTS AND CONCLUSION:Basic fibroblast growth factor has an inhibitory effect on the opening of the L-type calcium channels, resulting in a decrease in intracellular free calcium concentration (P<0.01). cellnumber was higher after culture with basic fibroblast growth factor than that cultured under conventional condition (P<0.01), and staining area of type II col agen significantly increased (P<0.05). Results verified that basic fibroblast growth factor can maintain intracellular Ca2+concentration at a low level by inhibiting the opening of L-type calcium channels, which can promote the proliferation and differentiation of chondrocytes.

BACKGROUND:Differences of knee anthropometry between individuals are significant, while preoperative templating is not accurate in predicting the prosthesis size.
OBJECTIVE:To improve the accuracy of pre-operative plan in predicting the prosthesis size in total knee arthroplasty using digital technologies.
METHODBetween January 2013 and May 2004, 50 patients (20 men and 30 women;aged 54-82 years;mean age, 67.8 years) received primary total knee arthroplasty for osteoarthritis and were retrospectively analyzed. According to the treatment, the patients were divided into two groups. The digital group, a series of 21 patients, underwent 64-row MDCT before total knee replacement. CT images were imported into Mimics, and three-dimensional models of femur and tibia were reconstructed. Then, computer-aided design files of different sizes of prostheses provided by the manufacturers were imported into Mimics, too. Surgical simulation of osteotomy and prostheses implantation were performed in Mimics, component size was determined by the contour of distal femur and proximal tibia. The control group, a series of 29 patients, underwent primary total knee arthroplasty using conventional approaches. The agreement between preoperative plan and the actual prosthesis size was assessed during the surgery. Postoperative X-ray of low limb was taken to evaluate the accuracy of sizing and the efficacy of digital technologies was assessed.
RESULTS AND CONCLUSION:The intraoperative and postoperative evaluation showed inaccurate sizing of femoral and tibial components in 1 case in digital group and in 11 cases in conventional group. The accuracy of prediction was 95%in digital group and 62%in conventional group, with significant differences between the two groups (P<0.05). Four overhanging and two notching cases were observed in conventional group, but none in digital group. The digital technologies provide an effective means for accurate prediction of prosthesis size and personalized surgical simulation.

Objective To analyze the data from Online Mendelian Inheritance in Man (OMIM) to understand more about it, and provide reference to researchers using this database.Methods 19414 mutations which have definite relevant phenotypes from OMIM were obtained, then these mutations with three databases (1000 Genome Project,GO-ESP,ExAC) which record the mutation frequency in different population were compared.Results Most of the phenotype-related mutations from OMIM are rare mutations whose mutation frequency is less than 1%:18866 in 1000 Genome Project, 18981 in GO-ESP, 18979 in ExAC.The number of mutation whose frequency is more than 1% is 548433435 in 1000 Genome Project, GO-ESP, ExAC, respectively.And there are 320 mutations whose frequency is more than 1% in all databases.In all phenotypes, there are 127 polymorphism phenotypes, 584 susceptibility phenotypes, while in 320 ( 1.6%) phenotypes with common mutations, there are 62 polymorphism phenotypes, 88 susceptibility phenotypes and occupies 48.8%, 15.1%, respectively.Conclusion Approximately 97.5% mutations in OMIM are rare mutations.Polymorphism and susceptibility enrich in common mutations, especially in the mutation whose frequency is more than 10%.