Aim To explore the best way of calculating antihypertensive effect of nifedipine GITS on trough to peak ratio (T/PR), and smoothness index (SI) of the drug from ambulatory blood pressure monitoring (ABPM). Methods 32 cases of mild to moderate essential hypertension patients were enrolled and each was given 30 mg of nifedipine GITS once daily. ABPM was repeated for four weeks. ABPM data were analyzed statistically and T/PR calculated by both individual and whole group way. Results The casual blood pressure(CBP) and ABP were lowered by (24?12)/(12?8) mmHg and ( 14.5 ? 3.9 )/( 11.2 ? 3.0) mmHg .The T/PR by individual way was 0.65 ? 0.23 for SBP and 0.66 ? 0.25 for DBP, while by whole group way 0.62 for SBP and 0.68 for DBP. The smoothness index (SI), a new method for assessing the homogeneity of 24 hour blood pressure reduction by antihypertensive therapy, was 3.74 for SBP and 3.77 for DBP after treatment. Conclusion Nifedipine GITS lowers blood pressure effectively and smoothly for 24 hours long. Antihypertensive effects can be reflected by T/PR and SI.

Objective To evaluate the value of the TIMI risk index in predicting 30-day and one-yosr mortality and incidence of heart failure in patients with ST-elevation myocardial infarction (STEMI).Method Data of 229 patients with STEM1 from August 1999 to March 2006 in the First Affiliated Hospital,Sun Yat-sen University,were retrospeclively collected,analyzed and scored with TIMI risk index.When categorized into quintiles(≤12.5,12.5～17.5,17.5～22.5,22.5～30,>30) and modeled as a continuous variable,difference of prediction of 30day and one-year mortality and 30-day incidence of heart failure of patients were compared respectively.Results When categorized into quintilos and modeled as a continuous variable,30-day and one-year mortality and 30-day incidence of heart failure were increasing with increasing score of risk index (P<0.05).The area under the recewer operating characteristic curve were 0.65,0.68,0.67 and 0.70,0.72,0.70,respectively.Conclusions The TIM1 risk index can be used as a simple,rapid and practical tool to risk-stratify patients with STEMI.

Objective To discuss the diagnostic value of DSA for massive hemorrhage in lower gastrointestinal tract resulting from tumour. Methods 24 patients with massive lower gastrointestinal hemorrhage were performed DSA and then operated as tumour. Results Among 24 patients, 17 cases demonstrated direct signs of hemorrhage, 9 cases visible turnout vessels; 24 patients all showed clumping tumour-specifie dyeing. Conclusion DSA is of great value to determining the location and qualitation of the massive lower gastrointestinal hemorrhage resuhing from tumours.

Objective To prepare PTD4-Cu,Zn-SOD fusion protein.Methods The recombinant plasmid of pET 1 6b-Cu,Zn-SOD and pET16b-PTD4-Cu,Zn-SOD was transformed into Escherichia coli BL21 (DE3).Isopropyl β-D-1-thiogalactopyranoside was then added at a final concentration of 0.84 mmol/L,and the cells were incubated for 4 h to induce the expression of Cu,Zn-SOD and PTD4-Cu,Zn-SOD fusion protein.Lysozyme and ultrasound were used to lyse the bacteria,the supernatant was collected for 15％ SDS-PAGE to analyze the expression of the target protein.Ni-NTA His bind resin was used to purify Cu,Zn-SOD protein and PTD4-Cu,Zn-SOD fusion protein under natural conditions.Western blot was used to identify the target protein.Results The results of Western blot showed that the purity of the target protein was about 90％,and the Cu,Zn-SOD protein with a molecular weight about 19 kDa and the PTD4-Cu,Zn-SOD fusion protein with a molecular weight about 20 kDa were found.Conclusion PTD4-Cu,Zn-SOD fusion protein is prepared successfully.

Objective To investigate the effect of bevacizumab combined with chemotherapy on the expression of EGFR and HER in the patients with metastatic colorectal cancer .Methods Sixty patients with metastatic colorectal cancer treated in this hos-pital from January 2013 to October 2016 were selected and randomly divided into the experiment group (bevacizumab combined with FOLFOX-6 chemotherapy regimen) and control group (FOLFOX-6 chemotherapy regimen) 30 cases in each group .The curative effects were observed in the two groups .The levels of serum HER and EGFR were detected by enzyme-linked immunosorbent assay (ELISA) .Results The total effective rate after treatment in the experiment group was 53 .33% ,which in the control group was 33 .33% ,the difference was statistically significant (P< 0 .05) .After treatment ,the levels of serum HER and EGHR in the two groups were decreased to some extent ,moreover the experiment group had more decrease than the control group ,the difference be-tween the two groups was statistically significant (P<0 .05) .The occurrence rate of adverse reactions had no statistical difference between the two groups (P>0 .05) .Conclusion Bevacizumab combined with chemotherapy has good effect in the patients with metastatic colorectal cancer .

OBJECTIVE: To explore the genetic cause for a child with congenital ichthyosis. METHODS: The child was subjected to next generation sequencing using a specific gene panel. Suspected mutation was validated by Sanger sequencing. RESULTS: The proband was found to harbor compound heterozygous mutations c.327delG (p.Met109Ilefs*2) and c.791G>A (p.Arg264Gln) of the TGM1 gene, which were respectively inherited from his mother and father. The same mutations were not found among 101 healthy controls. c.327delG was not reported previously. By bioinformatic analysis, both mutations are likely to impair the function of TGase-1 protein. CONCLUSION The compound heterozygous mutations of c.327delG and c.791G> A of the TGM1 gene probably underlie the ichthyosis in the proband. The result has facilitated prenatal diagnosis for this pedigree.
Female ; Humans ; Ichthyosiform Erythroderma, Congenital ; genetics ; Infant, Newborn ; Mutation ; Pedigree ; Phenotype ; Pregnancy ; Transglutaminases ; genetics

Objective : To investigate whether NaHS，a hydrogen sulfide donor，can improve myocardial injury in sepsis by inhibiting oxidative stress and activating the Xc －/ GPX4 signaling pathway in ferroptosis． Methods : Lipopolysacc-haride(LPS) induced H9c2 in rat cardiomyocytes to form an in vitro model of myocardial injury in sep- sis，which was divided into Control group，LPS group and LPS + NaHS group．The kits were applied to detect the changes of cardiomyocyte viability，Fe2 + ，LDH and CK-MB，determine the levels of oxidative stress indexes GSH and MDA，detect the changes of cellular ROS and mitochondrial membrane potential levels by fluorescent probes， and detect the expression levels of ferroptosis regulatory proteins SLC7A11 and GPX4 by Western blot. Results: Compared with the Control group，H9c2 cell viability decreased，Fe2 + concentration increased ，GSH ，MDA and ROS levels increased，mitochondrial JC-1 monomer increased ，expression levels of ferroptosis regulatory proteins SLC7A11 and GPX4 decreased，and cell damage increased after LPS stimulation (P＜0. 05) ．Compared with the LPS group，NaHS attenuated LPS-induced H9c2 cell injury and elevated Fe2 + concentration，decreased the level of LPS-induced oxidative stress in H9c2 cells ，and increased the expression levels of ferroptosis regulatory proteins SLC7A11 and GPX4 (P＜0. 05 ) ． Conclusion The mechanism by which NaHS attenuates myocardial injury in sepsis may be related to the inhibition of oxidative stress and activation of the Xc －/ GPX4 signaling pathway in fer- roptosis.