Objective To investigate the therapeutic effect of osteoporotic vertebral compression fractures treated by percutaneous kyphoplasty combined zoledronic acid.Methods Patients admitted to our hospital′s depart-ment of orthopedics from February 2010 to December 2013 were reviewed,and 67 patients underwent percutaneous ky-phoplasty were admitted.According to the application of zoledronic acid or not,they were divided into 2 groups,with 39 cases and 28 cases,respectively.On 67 patients before surgery,3 days after surgery,the end of follow -up surgery, VAS,ODI,vertebral height average recovery rate and Cobb angle were compared.The BMD was also compared before and after surgery.Results There was no difference between the two groups in all above indices before treatment(t =0.308,P =0.758;t =0.476,P =0.635;t =0.397,P =0.693;t =0.342,P =0.733).3 days after surgery,the levels of VAS,ODI and Cobb angle all decreased(t =25.820,P <0.001 vs.t =24.988,P <0.001;t =16.801,P <0.001 vs.t =17.008,P <0.001;t =9.717,P <0.001 vs.t =7.525,P <0.001),while vertebral height average recovery rate were increased in both groups(t =8.300,P <0.001 vs.t =6.363,P <0.001 ),but there was no difference between the two groups(t =0.177,P =0.861;t =0.568,P =0.572;t =0.453,P =0.652;t =0.508,P =0.613).In the end of follow -up surgery,there was a significant difference between the two groups(t =4.779,P <0.001;t =7.041,P <0.001;t =2.517,P =0.014;t =2.406,P =0.019).There was no difference between the two groups in BMD(t =0.479,P >0.05),but it came to be a difference between the two groups in the end(t =2.710,P =0.009), although there was no difference in secondary fracture(23.1% vs.7.1%,χ2 =3.016,P =0.082).Conclusion Per-cutaneous kyphoplasty combined zoledronic acid has an excellent effect on osteoporotic vertebral compression frac-tures,it is worthy promoting.

Head and neck cancer presents with complex anatomy and high intratumoralheterogeneity. Radiotherapy is one of the main treatments. The therapeutic strategy and prognostic evaluation in head and neck cancer patients traditionally depend on TNM stage, lacking of individual information. Radiomics can extracts high-throughput image features relevant to the biology of tumors, which provides a non-invasive and quantitative method to evaluate the overall tumor heterogeneity and also offers a novel perspective for precision radiotherapy. The research progresses on the application and chanllenges of radiomics in the radiotherapy for head and neck cancer were summarized in this review.

THe insulin-like growth factor(IGF) system,a very important polypeptide growth hormone,has been found to have some relation with primary adrenocortical tumorigenesis and modulates its growth.This article reviews the general biological characteristics of IGF and the relations of the IGF system with the normal adrenal cortex and primary adrenocortical tumor.It also and discuss the clinical meaning of its possible presence in the primary adrenocortical tumor.

Recently the lysine succinylation was discovered in vivo, and it was demonstrated to be widely involved in cell dif-ferentiation, cell metabolism and other important physiological activities.Lysine succinylation has become the forefront of life science research.Scientists have provided a lot of evidences that proteins in prokaryotes and eukaryotes are widely succinylated, without which the central metabolism and intermediary metabolism of many metabolic enzymes are disrupted.To better understand the importance of Succinylation in vivo, protein-succinyl modification of the current research and the latest developments are reviewed, which summarize succinylated protein lysine sites in the center of important physiological metabolic pathways, diseases and other pathological conditions.

Antimalarials ; therapeutic use ; Artemisinins ; therapeutic use ; Child ; Drug Therapy, Combination ; Humans ; Malaria, Falciparum ; drug therapy

Objective To explore the diagnostic value of diffusion weighted imaging (DWI) and CT perfusion imaging (CTPI) in diagnosis of liver fibrosis. Methods Fifty-seven hepatic fibrosis patients and 23 normal controls received DWI (b=500 s/mm2), ADC value of different fibrosis stages was measured, while 35 patients and all 23 normal controls received CTPI. The parameters of CTPI including blood flow (BF), blood volume (BV), mean transit time (MTT), hepatic arterial fraction (HAF) and permeability surface (PS) were measured. Analysis of variances was performed to compare the difference among the groups in both examinations. ROC curve was used to analyze the sensitivity and specificity of DWI and CTPI. Results The difference of ADC value between control group and S1 group was not significant, but between control group and S2, S3, S4 group and among group S2, group S3, group S4 was significant. In the parameters of CTPI, only the difference of HAF between control group and S3-S4 group was significant. Sensitivity and specificity of DWI and CTPI was 78.90%, 82.60% and 66.67%, 73.91%, respectively. Conclusion DWI is superior to CTPI for early diagnosis and degrading of liver fibrosis.

Objective To investigate the utilization of liver enhancement in hepatobiliary phase of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced MRI for liver function evaluation.Methods Fifty-five patients who received enhanced MRI with Gd-EOB-DTPA were retrospectively analyzed.Images were obtained before injection and in hepatobiliary phase (5,10,and 20 minutes after Gd-EOB-DTPA injection).The patients were assigned into two subgroups according to individual liver function (n =35 in Group 1:normal liver and Child-Pugh class A; n =20 in Group 2:Child-Pugh class B and C).The relative liver enhancement (RE) was calculated at different time point.The general data (age,sex) and relevant laboratory results were recorded.Independent sample t-test was conducted to compare the RE between two groups at different time point.ROC curve was used to determine the best time point and RE threshold that can reflect the differences between two groups.Univariate analyses was performed to analyze the relationship between RE at the best time point and laboratory results.Multivariate analyses was performed to screen the independent influencing factor for RE at the best time point.Results The differences of RE between two groups were statistically significant at all time points (P ＜ 0.0001).10 minutes was the best time point for detecting the differences of liver function between two groups.When an RE cutoff value (＞ 1.52) was applied,normal or Child-Pugh class A could be predicted with sensitivity of 74.3％ and specificity of 90％.RE at the best time point was significantly related with total serum bilirubin level (TBil),serum albumin level (Alb) and prothrombin time (PT).And TBil was an independent influencing factor.Conclusion RE can be used to evaluate the liver function,and 10 minutes is the best time point that can be used to differentiate patients with normal or mild liver damage from those with moderate or severe liver damage.

Objective To elucidate the MRI appearance of prostatic abscess,the DWI and enhanced MRI features.Methods 12 cases of prostatic abscesses were retrospectively analyzed,the clinical symptom mainly manifested as lower urinary tract symptoms and fever.All of the patients were given routine MR examination including DWI sequence,6 patients received further enhanced MR examination.Results In the 12 cases,there were 4 cases behaved as single type,8 cases as multifocal type.The abscess showed iso-or slightly hypo-signal intensity on T1 WI,hyper-signal intensity on T2 WI,markedly high signal intensity on DWI and correspond-ing markedly low signal intensity on ADC.Complete abscess walls showed iso-or slightly hyper signal on T1 WI,hypo-signal inten-sity on T2 WI.The mature abscess walls were thin and smooth,which showed homogeneously ring enhanced in 4 cases.The imma-ture abscess walls showed uneven thickness and moderately enhanced in 2 cases.Septum in the abscess could be found in 4 cases, which showed similar enhancement to the abscess walls,while the abscess cavity showed non-enhanced.Abscesses involved the sur-rounding structures in 2 cases,the involved area showed obvious hyper-signal on T2 WI fat-suppression sequence.Conclusion DWI is the best sequence in the diagnosis of prostatic abscess,the markedly high signal intensity on DWI is the characteristic sign.The enhanced MRI showed the walls and septa clearly,the extent and involvement of adjacent structures.The multi-parametric MRI is a prominent procedure in the diagnosis of prostatic abcess.

Aim To investigate the changes of phosphorylated p38 mitogen-activated protein kinase(p-p38MAPK)in the spinal cord following chronic compression of dorsal root ganglion(CCD)in rats, and to explore the correlation between chronic neuropathic pain and p38MAPK.Methods The animal model of neuropathic pain following chronic compression of dorsal root ganglion was established.36 male Sprague-Dawley rats were randomly divided into Naive group(n=4),Sham group(n=16),CCD group(n=16).Sham group and CCD group were also divided into 5,7,14 d and 21 d group respectively(n=4),Western blot analysis was used to investigate the expression of the phosphorylated active form of p38MAPK (p-p38MAPK) in the spinal dorsal horn in rats after CCD.Results p-p38MAPK protein was expressed in spinal cord among all three groups,but there were no significant differences between Naive group and Sham group.Compared to Naive and Sham group, rats in CCD group showed significant increase of the expression of p-p38MAPK protein in spinal cord.Compared with that of Sham group,protein expression of p-p38MAPK in cytosol in the spinal dorsal horn in 5,7,14 d and 21 d of post-surgery increased respectively 138.1%(P

Objective To investigate the expression of CD133 in human nasopharyngeal carcinoma cell line SUNE,and to detect proliferative and differential ability of CD133+ tumor cells in vitro,and to identify tumor-like stem cells in SUNE.Methods Immunocytochemical staining method and flow cytometry were used to detect the expression of putative tumor-initiated cell marker CD133 in nasopharyngeal carcinoma cell line SUNE,and the isolation technique with immunomagnetic beads was applied to purify CD133+ cells.The proliferative ability of CD133+ tumor cells in vitro was estimated by MTT assay,and the proliferative ability of CD133+,CD133-and control SUNE cells were statistically compared.Finally,the immunocytochemical staining method and flow cytometry were used to detect differential ability of CD133+ tumor cells in vitro.Results CD133 was positively expressed only in 0.35% of the cells in nasopharyngeal carcinoma cell line SUNE.In the serum-free medium RPM I1640,the UV optical density of the CD133+ tumor cells enriched with immunomagnetic beads was 0.317?0.007,0.370?0.002 and 0.558?0.004 at 3,5 and 7 days,respectively.Compared with CD133-cells and control SUNE cells,CD133+ cells showed increased proliferative capacity(P