Objective To evaluate the clinical significance and prognosis of tetus with lateral ventriculomegaly.Methods We retrospectively analyzed 92 singleton pregnant women who were antenatally diagnosed with fetal ventriculomegaly by ultrasound in genetic conselling clinics,Department of Gynaecology and Obstetrics,Nanfang Hospital,Southern Medical University between August 2007 and August 2010.All participants were divided into three groups according to the width of the lateral ventricles:group A (10.0-12.0 mm,n＝50),group B (12.1-14.9 mm,n=38) and severe ventriculomegaly group (≥15.0 mm,n=4).All fetuses were followed up.Chi-square test(or Fisher's exact test),Bonfferoni method,Mann Whitney or Kruskal-Wallis test were used for statistics.Results In group A,B and severe ventriculomegaly group,18％ (9/50),65.8％(25/38)and 3/4 of fetuses were complicated with structural malformation,respectively (x2 =22.934,P =0.000),and statistical significance were found only between group A and B (x2 =20.798,P=0.000).The incidences of fetal chromosomal aberration were 4.0％ (2/50),7.9％ (3/38)and 0/4 in the three groups,respectively (x2＝0.878,P ＝ 0.645).Eventually,all four cases with severe cerebral ventriculomegaly were terminated.Among cases of mild ventriculomegaly,63 women continued the pregnancy (48 in group A and 15 in group B).The intrauterine improvement of group B was poorerthan that of group A (Z=-3.317,P =0.001).Respectively,three,ten and two cases of ventriculomegaly deteriorated,stabilized and regressed in group B,and the corresponding figures were 3,15 and 30 in group A.In group A,the prognosis of fetus with non-isolated ventriculomegaly was poorer than that of fetus with isolated ventriculomegaly (Z=-2.631,P=0.009).For neonates 14 days after birth (n=62),the rates of normal neonatal behavioral neurological assessment (NBNA) scoring were respectively 93.8％ (45/48) and 71.4％ (10/14) for groups A and B with statistical difference (Fisher's exact test,P =0.040).Bayley scales of infant development (BSID) used to evaluate infants at 12-month-old revealed that the psychomotor developmental index (PDI) between group A and group B had statistical difference (8,26 and 1 case of good,moderate and poor development in group A; one,seven and three cases in group B; Z=-2.203,P=0.043).However,the mental developmental index (MDI) between group A and B had no statistical difference.Twenty babies among the survived ones received magnetic resonance imaging (MRI) examination.The results showed that lateral ventricle width regressed in nine babies (45.0％) and progressed in one baby (5.0％).Ten cases (50.0％) did not change.The change of ventriculomegaly after birth was related to BSID evaluation.Better prognosis of fetuses were found in those with regressed ventriculomegaly (P=0.033).Conclusions Fetuses with mild ventriculomegaly (10.0 12.0 mm) have a favorable outcome.Further investigations,such as fetal development,chromosomal examination,intrauterine infection screening and MRI if necessary,are suggested for fetus with ventriculomegaly.Moreover,intensive intrauterine and postnatal follow-up is recommended.

Hypermethylation in the promoter region of tumor suppressor genes is a common mechanism of gene silencing, which tends to occur in cancer. The effects of 5-Aza-2'-deoxycytidine (5-Aza-CdR), a specific DNA methyltransferase inhibitor, on the cell proliferation of human breast cancer cell line MCF-7 and on the expression of Apaf-1 gene were investigated. Human MCF-7 cells were incubated with increasing concentrations of 5-Aza-CdR for 12 to 120 h. The growth inhibition rates of MCF-7 cells were detected by MTT assay. Changes of cell cycle distribution and apoptotic rates of MCF-7 cells were determined by flow cytometry. The expressions of DNA methyltransferase 3b mRNA and Apaf-1 mRNA were measured by reverse transcription polymerase chain reaction (RT-PCR). Meanwhile, the expression of Apaf-1 protein was detected by Western blotting. The results showed that 5-Aza-CdR significantly inhibited the growth of MCF-7 cells and the growth inhibition rate of MCF-7 cells was significantly enhanced with the concentration of 5-Aza-CdR and the action time. Flow cytometry indicated that 5-Aza-CdR could significantly induce G(1)/S cell cycle arrest and increase the apoptosis rate of MCF-7 cells. The mRNA and protein expressions of Apaf-1 were up-regulated in MCF-7 cells treated with 5-Aza-CdR, which was accompanied by down-regulation of DNA methyltransferase 3b mRNA. It is concluded that 5-Aza-CdR might retard the growth of tumor cells and promote the apoptosis of MCF-7 breast cancer cells by inhibiting the expression of DNA methyltransferase 3b and re-activating the Apaf-1 gene expression.

Objective To investigate the characteristics of post-transplantation diabetes mellitus and analyze its risk factors. Methods Extensive survey was carried out to understand the characteristics of post-transplantation diabetes mellitus in patients who received kidney grafting from February 1984 to December 2006. Results Three hundred forty-four post-transplantatian diabetes mellitus patients from 1872 ones after kidney grafting were found from February 1984 to December 2006. The prevalence of new onset post-transplant diabetes mellitus and impaired fasting glucose in kidney allograft recipients were 18. 4% and 12. 7% respectively, being significantly higher than that in general population and other inpatients. The options of immunosuppressants were significantly associated with the prevalence of post-transplantation diabetes mellitus. By multivariate logistic regression analysis, the baseline characteristics of the post transplantation diabetes mellitus patients were significantly associated with increased age(OR: 1. 309, P = 0. 049), elevated level of the triglyceride (OR: 1. 311, P = 0. 005), treatment with taerolimus (FK506) (OR: 1. 522, P = 0. 008), and large dose of intravenous pulsed prednisolane(OR: 1. 239, P = 0. 011), as compared with patients without post-transplantation diabetes mellitus. Besides, the number of patients with at least one acute rejection episode was significantly greater in the post-transplantation diabetic patients. Mycophenolate mofetil (OR: 0. 716, P = 0. 028) and diltiazem (OR: 0. 737, P =0. 015) were associated with lower risk of post-transplantation diabetes mellitus. Conclusions High prevalence of abnormal glucose metabolism in renal allograft recipients during hospitalization was observed. Many risk factors contributed to the development of post transplantation diabetes mellitus.

Objective To observe the inhibitory effect of pyridoxine hydrochloride (PN) combined with common chemotherapeutics on mice hepatoma cells H22 in vitro. Methods MTT assay was used to determine the effects of PN in combination with 10 different antineoplastic agents on H22 cells, and immuno-histochemistry was used to observe the distribution of PN in H22 cells and morphologic changes of the cells before and after PN treatment. Results After 24 hours incubation with 5 mmol/L PN, the treated cells expanded apparently with nucleus chipping. PN entered the tumor cell and was mainly condensed in cytoplasma and H22 cells were sensitive to PN. When administered concomitantly with chemotherapic agents, most of the combinations showed antagonistic effects while a few of the combinations were additive. For instance, doxorubicin (ADM) used in combination with PN inhibited cell proliferation with an IR value (IR=0.63) much lower than ADM alone (IR=0.71, P<0.01), and the CI value was less than 0.9, which indicated an antagonistic effect. However, PN in combination with ifosfamide (ICTX) showed additive effect (CI>0.9), and the IR value (IR=0.60) in combined group was higher than that (IR=0.40) in ICTX group (P<0.05). Conclusion PN treatment could increase the intracellular PLP level and result in growth inhibition and cell death, and combined administration of PN and ICTX might be a potential method to improve efficacy and to reduce toxic effects while a co-administration of PN and ADM should be avoided.

Objective To evaluate the feasibility,efficacy,and short to mid-term results of endovascular management of acute type B aortic dissection complicating visceral or lower limb malperfusion.Methods A retrospective study was conducted in 23 consecutive patients with acute type B dissection complicating visceral or lower limb malperfusion treated endovascularly at a single center between July 2001 to December 2012.Of the 23 patients identified [20 men,3 women; mean age (52 ±9) ranging 42-75]presented with clinical and imaging evidence of end-organ malperfusion:renal artary in 5 (21.7％),superior mesenteric artery in 9 (39.1％),celiac trunk in 3 (13％) and lower limb in 6 (20.1％),artary renal and lower limb in 2.Results All patients had stent-graft coverage of the proximal entry tear.11 (47.8％) patients needed additional branch vessel stenting.Successful correction of malperfusion was achieved in all the patients and the successful rate of operation and technology was 100％.In 1 patient,ischemia in the lower limb was resolved after a stent was implanted to the right iliac artery.In another patient,complicated with lower limb ischemic necrosis,amputation was performed after one stage stent-graft placement.The duration of follow-up was 6 months to 72 months,mean (21 ± 11)months.There was no migration of stent-graft and end-organ ischemia.No patients suffered from paraplegia in this group.Conclusions Endovascular coverage of the proximal entry tear in acute type B aortic dissections complicating end-organ malperfusion is a reasonable first line treatment.But some cases may need a combination branch vessel stenting.

Acute Coronary Syndrome ; etiology ; Angioplasty, Balloon, Coronary ; adverse effects ; Coronary Thrombosis ; etiology ; Drug Hypersensitivity ; etiology ; Drug-Eluting Stents ; adverse effects ; Humans

Objective To analyze the antimicrobial susceptibility of Mycoplasma isolates for rational antimicrobial therapy. Methods BioM?rieux IST kit was used for identification and susceptibility testing of Mycoplasma strains.Results Mycoplasma was positive in 49.5% of the specimens tested.Of the Mycoplasma detected,Ureaplasma urealyticum(Uu)alone accounted for 74.7%,Mycoplasma huminis(Mh)alone accounted for 18.1%,and Uu+Mh was identified in 7.2% of the patients.The results of antimicrobial susceptibility testing showed that the Mycoplasma isolates were most susceptible to doxycycline (98.1%).Ciprofloxacin was the least active (17.3%).Conclusions Doxyeycline,josamycin,and clarithromycin can be used in the treatment of urinary tract infections caused by Mycoplasma.

0.05),and there was significant difference in ICA,VP,RI,AT,and the levels of TXB_2 and 6-K-PGF_(1?) of the blood plasma(P

BACKGROUND: Continuous blood purification can remove cytokines and inflammatory mediators, maintain homeostasis and prevent the occurrence of multiple organ dysfunction syndrome in patients with severe pancreatitis, which has become the main therapy for severe pancreatitis. Since the hemodialysis technology began to be applied clinical y, the biological and physicochemical properties of hemodialysis membrane materials have been studied. A variety of hemodialysis membranes have been developed in order to improve the biocompatibility and anticoagulant effect in vitro. OBJECTIVE: To investigate the application effect of hemodialysis membranes on severe pancreatitis. METHODS: Ten Wistar rats were selected to make rat models of severe pancreatitis and then were randomized into two groups (n=5 per group): homophone membrane group and polysulfone membrane group. Hemodialysis- related biochemical parameters were detected in the two groups. RESULTS AND CONCLUSION: Compared with the homophone membrane, ultrafiltration coefficient, creatinine clearance, blood urea nitrogen clearance, phosphorus clearance, number of circulating endothelial cel s, and levels of plasma nitric oxide and asymmetric dimethylarginine were significantly lower in the polysulfone membrane group (P < 0.05). Vitamin B12 clearance and amount of pre-congestion increased significantly in the polysulfone membrane group as compared with the homophone membrane (P < 0.05). These findings indicate that the polysulfone membrane for hemodialysis has good biocompatibility, and keeps a stable environment in vivo for severe pancreatitis patients.

Objective To explore the value of an innovative teaching model which combined problem based learning (PBL) method with case based learning (CBL) method in clinical oncology Teaching.Methods 68 students were divided into the combinational teaching group (30 cases) and the LBL group (38 cases).The combinational teaching group was taught by PBL method combined with CBL method, and this dual track teaching was based on cases and problems.The traditional teaching group was taught by LBL method.The teaching effect was evaluated by students' questionnaire survey and test score.SPSS 13.0 was used to two groups to do t test for statistical analysis in test score and x2 test for degree of satisfaction.Results In the final examination, the score of non-case test of combinational teaching group was similar to that of traditional teaching group (50.30 ± 7.19 vs.52.04 ± 8.01, P=0.358).The combinational teaching group had significant improvement in case analysis test (35.76 ± 5.28 vs.31.80 ± 5.16), and the difference was statistically significant (P=-0.003).In the course of teaching satisfaction survey, the dual track teaching group, compared with the conventional teaching group, has a better effect on self study ability, communication skills, communication skills, and higher satisfaction for teaching, and more willing to continue to carry out teaching (P＜0.05).Conclusion The PBL+CBL combinational teaching model can make a great contribution to improving the teaching quality and satisfaction, and worthy of being popularized and applied.