PTEN gene is considered to be the first discovered tumor suppressor gene with dual specificity phosphatase activity.The research has shown that the increasing popularity of PTEN rests on its important roles in cancer cell growth,differentiation,signaling transduction and cell apoptosis.Besides,the mutation of PTEN is related to cancer initiation and progression.The recent advances on PTEN gene in malignant tumors will be reviewed in this paper.

Type 2 diabetic patients are usually accompanied by dyslipidemia.The cardiovascular residual risk is still high in these patients,even with glycemia,blood pressure,and plasma lipids well controlled.In this review,the relationship of plasma lipids and changes in lipoprotein particles with cardiovascular risk is discussed.

Objective:To study the variation of X chromosome centromeric Alpha Satellite DNA in Klinefelter's syndrome patients,their parents and normal individuals and to discuss the mechanism of Klinefelter's syndrome X chromosome nondisjunction.Methods:The multi-copies of a 2Kb tandem repeat unit on X chromosome of centromeric Alpha Satellite DNA were simultaneously amplified with reasonable primers by (representative sampling of multiple repetitive units,rep)PCR,and the mechanism of X chromosome aneuploidy resulted by abnormal structure of centromere was investigated.Results:1774bp,570bp and 1410bp,583bp,220 bp (three short fragments are resulted by deletion in alpha satellite DNA) were detected in Klinefelter's syndrome patients,their parents and normal karyotype controls.There were 1774bp and 1410bp DNA fragments in all of samples.The relative frequencies of 570bp and 583 bp were significantly higher in Klinefelter's syndrome patients than in normal karyotype controls,the 220bp was not found significantly different in the three groups.Conclusion:Deletion in the region of Alpha Satellite DNA is present at centromeres of all human X chromosome,while Klinefelter's syndrome patients and their parents show higher frequency than normal individuals.These results imply that analysis of deletion on X-specific ?satellite of the parents during the pre-pregnancy and pregnancy plays a important role either in estimating the risk of repruducing Klinefelter's syndrome or in providing the guideline for prenatal chromosome diagnosis of villus and amniotic fluid.

Objective To explore relationship between magnetic resonance imaging (MRI) performance and lipid levels in pa-tients with lacunar infarction (LI) .Methods 68 patients with LI were retrospectively analyzed ,62 cases patients without heart ce-rebrovascular disease in the same period were choosen as control group ,the multivariate logistic regression was used to analyze the relationship between MRI performance ,the changed level of lipid .Results A total of 299 lacunar lesions were detected by MRI ,in which there were 58(19 .40% )in the left cerebral hemisphere ,26(8 .70% ) in the right hemisphere ,73(24 .41% ) in the bilateral basal ganglia ,27 (9 .03% ) in thalamus ,54 (18 .06% ) in the lateral ventricles corona radiata ,39 (13 .04% ) in brainstem ,and 22 (7 .36% ) in cerebellum .TC ,TG ,LDL-C and Ox-LDL levels in LI patients were significantly higher than the controls (P<0 .05) , while HDL-C levels were significantly lower than the controls (P<0 .05) .Multivariate Logistic regression analysis showed that relative risk of TC ,TG ,LDL-C ,HDL-C and Ox-LDL to LI were 1 .56 ,1 .27 ,1 .39 ,1 .46 and 1 .44 .Conclusion The MRI manifestations and lipid levels of LI have a certain degree of correlation ,and elevated blood lipid levels may be important risk factors for LI .

The roots ofApium graveolens L. have been widely used in Uighur Medicine. Research has shown that roots ofApium graveolens L. has good clinical efficacy in the aspects of liver protection and lipid decreasing, hyperlipidemia treatment and so on. This article reviewed research on the chemical components, extraction process, and pharmacological action of roots ofApium graveolens L. so far, with purposes to better develop and utilize roots of Apium graveolens L., and provide references for follow-up study.

Objective To investigate the influence of genistein(Gen) on the growth and apoptosis regulation of hepatoma carcinoma cells SMMC-7721.Methods SMMC-7721 cells were divided into three Gen groups treated with different concentrations(5.0,10.0,20.0 mg?L-1) and control group(without Gen).After SMMC-7721 cells were treated for 24 and 48 h,the changes of ultrastructure of cells were observed under electron microscope, MTT was used to detect the inhibitory rate of proliferation of SMMC-7721 cells,flow cytometry was performed to analyze cell phase;immunohistochemistry was used to detect the expression of Caspases-3 protein.Results Compared with control group,chromatin in cellular nucleus became conglomeration or lumping,with chondriosome swelling in Gen groups.With the increasing of Gen concentration,the cellular nucleus became condensed,heterochromatin agglutinating,ground cytoplasm obviously cavitating;with the increase of Gen concentration and prolongation of time,from 24 to 48 h,MTT showed the inhibitory rate of proliferation of SMMC-7721 cells increased in a time-and dose-dependent manner.Flow cytometry analysis showed that with the increase of Gen concentration,the number of cells at G2/M phase increased,the number of cells at S phase decreased and the ratio of G0/G1 also decreased.Immunohistochemistry results showed the expression of protein Caspases-3 increased with the Gen concentration in a dose-dependent manner(P

Due to the influence of potential psychological trauma, athletes in the competition may repetitively suffer poor performances, such as losing his usual form, slump, choking, and so on. These under-performing problems actually are symptoms of sports post-traumatic stress disorder (SPTSD). SPTSD refers to the pathological physical and mental after-effects of a trauma previously suffered by the athlete on that athlete's subsequent performances. This is a very common physical and emotional problem in athletics that impairs athletes' performance, affecting their competition results. By peak performance eye movement desensitization and reprocessing therapy, therapists can deal with this problem effectively and help athletes eliminate symptoms of sports post-traumatic stress disorder, improving the competition performance.

Objective To discuss postoperative analgesia effect of patient automatic controlled epidural analgesia (PCEA) and cocktail therapy (CT) after total hip replacement. Methods Eighty-eighty patients of selective total hip replacement were selected, and the patients were divided into PCEA group and CT group by random digits table method with 44 cases each. The postoperative resting state and active state visual analogue score (VAS), dosage of opioid, discharge time, postoperative complications, postoperative sleep quality score and hip joint mobility were compared between 2 groups. Results The resting state and active state VAS in PCEA group 12, 24 and 48 h after operation were significantly lower than those in CT group, resting state: (3.68 ± 1.45) scores vs. (4.23 ± 1.14) scores, (2.61 ± 1.04) scores vs. (3.92 ± 1.23) scores and (2.31 ± 0.97) scores vs. (3.56 ± 1.21) scores, active state:(4.54 ± 1.63) scores vs. (5.87 ± 2.11) scores, (3.51 ± 0.94) scores vs. (4.34 ± 1.07) scores and (3.01 ± 0.95) scores vs. (4.05 ± 1.17) scores, and there were statistical differences (P<0.05). But there were no statistical differences in VAS 72 h after operation and at discharge between 2 groups (P>0.05). The dosage of opioid in PCEA group was significantly lower than that in CT group:(9.58 ± 5.35) mg vs. (11.27 ± 4.48) mg, and there was statistical difference (P<0.05). The incidences of nausea vomiting and headache dizziness in CT group were significantly lower than those in PCEA group: 20.45% (9/44) vs. 45.45% (20/44) and 4.55% (2/44) vs. 13.64% (6/44), and there were statistical differences (P<0.05). There were no statistical differences in length of hospital stay, postoperative sleep quality score and postoperative hip joint mobility between 2 groups (P>0.05). Conclusions Choice of analgesic regimen of choice should not be made only according to the length of hospital stay. Individualized treatment is recommended. According to specific circumstances and needs of patients, patients with less anesthetics and a tendency to nausea should use PCEA, and for chronic pain patients CT may be more effective.

Objective To analyze the CT features of large adrenal adenoma and to compare the pathological features of large adenoma and small adenoma in order to improve the diagnosis of large adenoma.Methods The unenhanced and enhanced CT images of 14 patients with large adrenal adenoma,proven surgically and pathologically and pathological features of small adrenal adenomas in 30 cases were retrospectively reviewed.The pathological features were evaluated in the cell composition,the incidence of cystic degeneration and hemorrhage of large adenoma and small adenoma.Results 14 large adenomas were unilateral and single,3 had distinct margin and 11 had indistinct margin,14 showed regular contour of round or ellipse,the size of tumors were 5 cm?5.5 cm～18 cm?20 cm.14 large adenomas presened heterogenous density in unenhanced CT study with CT value of-36～51 HU,and 3 showed calcification and 6 showed cystic degeneration.Most of the 14 adenomas presented heterogenenous enhancement after contrast administration.Pathologic examination indicated that the clear cells were predominant in the cell composition of small adenoma,while in the case of large adenoma,the proportion of compact cell predominance was equivalent to that of the clear cell and compact cell concomitance.3 small adenomas and 6 large adenomas had cystic degeneration,5 small adenomas and 4 large adenomas had hemorrhage respectively.Statistical analysis suggested that large adenoma had higher incidence of degeneration than that in small adenoma,while no difference was found in the cell composition and incidence of hemorrhage between large adenoma and small adenoma.Conclusion The large adrenal adenomas have higher incidence of degeneration than that in small adenoma,while no difference is found in cell composition and incidence of hemorrhage between large adenoma and small adenoma.

Objective For arising recognition to HIE of neonate.We made a summary and a retrospective studied to CT material of 130 cases for neonate suffering HIE,combined with clinical diagnosis and documents.Methods 130 cases for neonate suffering HIE diagnosed by CT and clinic,all underwent unenhanced CT scan.Results Appearance of HIE:Normal involved 1～4 brain′s lobe,often involved frontal lobe;can be accompanied by kinds of intracranial hemorrhage;can be accompanied by infarction.Conclusion Among HIE cases,hypoxia and ischiemia were cause and result each other;difference among clinical symptoms and CT apearances are possible;the neonate with moderate and sereve asphyxia can be accompanied by intracranial hemorrhage more easier;to the injury of parasagittal region,CT and USG can not make a diagnosis.