Objective To discuss the relationship between part of risk factors and the characters of coronary artery lesion of different gender patients with coronary heart disease(CHD). Methods Two hundred and eight patients who were diagnosed CHD by coronary angiography (CAG) were selected. All patients were divided into male group (122 cases) and female group (86 cases). The characters of CHD and part of clinical data in different gender CHD patients were compared and analyzed. The independent risk factors of different gender CHD patients were analyzed. Results The age of onset in female group was later than male group:(69.22±10.12) years vs.(62.80±11.34) years, P=0.000. The incidence rate of hypertension and diabetes in female group were significantly higher than those in male group: 83.7%(72/86) vs. 63.1%(77/122), 53.5%(46/86) vs. 32.8%(40/122);and the levels of total cholesterol(TC), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C) in female group were significantly higher than those in male group:(5.16±1.26) mmol/L vs. (4.60±1.23) mmol/L,(1.16±0.27) mmol/L vs. (1.05±0.27) mmol/L, (3.17±1.16) mmol/L vs. (2.74±1.06) mmol/L;the level of uric acid (UA) in female group was significantly lower than that in male group: (319.83±90.05)μmol/L vs. (357.91±98.51)μmol/L, there were significantly differences(P<0.01). The level of trigalloyl glycerol (TG) in two groups had no significant difference: (1.91 ± 1.23) mmol/L vs. (1.75±0.97) mmol/L, P=0.298. Logistic regression analysis showed that age and diabetes were the risk factors of CHD in different gender (P<0.01 or <0.05). Conclusions There are different risk factors between different gender CHD patients, while the coronary artery lesion is similar. Diabetes is the most important independent risk factor of different gender CHD patients, which is more important for female patients with more risk factors.

Objective: To explore the possible mechanism of statins improving endothelial function via observing the effect of a high single dose atorvastatin on endothelial dysfunction and peripheral blood leucocyte Rho kinase activity in patients with unstable angina (UA). Methods: A total of 78 consecutive UA patients admitted in our hospital from 2012-08 to 2014-02 were enrolled. The patients received a single dose of atorvastatin 80 mg on the day of admission. Flow-mediated vasodilation (FMD) of brachial artery was examined by high-resolution ultrasound at before and 12 hours after medication. Protein expression of phospho-speciifc Thr853-MYPT1 (p-MYPT1Thr853) and MYPT1 was measured by Western blot analysis; peripheral blood leukocyte Rho kinase activity was assayed by the proportion of phospho-Thr853 in myosin binding subunit of light chain phosphatase (MYPT1). Results: Compared to prior medication, with atorvastatin 80 mg for 12 hours, FMD was increased 28.15% as (6.50 ±1.68) % vs (8.33 ± 1.93) %,P<0.001 and peripheral blood leucocyte Rho kinase activity was decreased 32.78% as (58.91 ± 5.22) % vs (39.6 ± 3.85 ) %,P=0.002. Conclusion: High dose atorvastatin could rapidly improve vascular endothelial dysfunction in UA patients. inhibiting of RhoA/Rho kinase pathway may involve in the effect of statins improving endothelial function.

OBJECTIVE:To explore the effect of dabigatran etexilate on coagulation indexes and safety of elderly patients with persistent atrial fibrillation. METHODS:52 elderly patients with persistent atrial fibrillation were randomly divided into obser-vation group and control group by random number table,26 cases in each group. Creatinine clearance rate in observation group was higher than 30 ml/min,110 mg Dabigatran etexilate capsule was orally given,bid;when 15-30 ml/min,55 mg capsule was orally given,bid. Control group orally received Warfarin sodium tablet with initial dose of 2.5 mg,qd,according to international normal-ized ratio (INR) after 3-5 days till maintained in 2.0-3.0. After 3 months,coagulation indexes [prothrombin time (PT),activated partial thromboplastin time (APTT),thrombin time (TT),INR,platelet count (PLT),fibrinogen (FIB)] before and after treat-ment,incidences of clinical events (cerebral embolism,cerebral hemorrhage,fatal bleeding,the remaining parts of embolism, death)and adverse reactions in 2 groups were compared. RESULTS:There was no significant difference in PT,APTT,TT,PLT and FIB between 2 groups before treatment(P>0.05);after treatment,PT and INR in 2 groups significantly increased,and obser-vation group was obviously better than control group,the difference was statistically significant(P<0.05). No cerebral hemorrhage or fatal hemorrhage occurred in the two groups. There was no significant difference in the incidence of cerebral embolism between 2 groups (P>0.05);the incidence of remaining parts of embolism,death in observation group significantly lower than control group,the difference was statistically significant(P<0.05). The incidence of adverse reactions in observation group was significant-ly lower than control group,the difference was statistically significant (P<0.05). CONCLUSIONS:Dabigatran etexilate shows good coagulation effect on elderly patients with persistent atrial fibrillation,which can effectively improve PT and INR levels and reduce the incidences of clinical events,with good safety.

Objective To explore the relationship between the peripheral dose and radioactive counts of 125I seeds detected by SPECT/CT.Methods Six 125I seeds(1.48×107 Bq, 1.85×107 Bq, 2.22×107 Bq, 2.59×107 Bq, 2.96×107 Bq, 3.33×107 Bq) were put into the solid water phantoms respectively. SPECT/CT was applied to scan the seeds. The radioactive counts (x) at the distance of 1-15 mm from the center of seeds were recorded respectively, while the corresponding doses (y, cGy) were calculated. SPSS 18.0 was used to analyze the relationship between the radioactive counts and peripheral dose. Results There was an exponential relationship between the peripheral dose of 125I seeds and the radioactive counts. The formula was as follow: y=507.849×1.004x. Conclusion SPECT/CT can visualize the peripheral dose of 125I seed, which may provide a method for dosimetric verification after brachytherapy.

To construct the ss/HBsAg protein gene-engineering vaccine for developing the diagnosis and cure tumors in clinical medicine and promoting the growth in animal husbandry production. A pair of primers were designed according separately to the sequence of Somatostatin gene(S14) and HBsAg gene. Their gene fragments were separately amplified by using PCR and cloned, following sequencing, the DNA fragments were inserted into pBluescript vector. Then the ss/HBsAg chimera was constructed and was cloned into pPICZaA plasmid, and transformed into electroporated Pichia pastoris. High yield protein expression was obtained. Expressed protein was proved with high specificity and it's molecular weigh was about 28 KD identified by SDS-PAGE and Western blot.
Artificial Gene Fusion ; Cloning, Molecular ; Gene Expression ; Genetic Vectors ; Hepatitis B Surface Antigens ; genetics ; Pichia ; metabolism ; Recombinant Fusion Proteins ; biosynthesis ; Somatostatin ; genetics

The experiment was conducted to prepare chitosan nanoparticles (CNP), to entrap VRMIL-2 with CNP, the eukaryotic VR1020 expression plasmid containing murine IL-2 gene (mlL-2), and to investigate the expression in vivo and the regulatory effect of mIL-2 on immune-response and immuno-protection in mice inoculated muscularly with CNP entrapped VMIL-2 at 21 days old. The results showed that IgG, IgM and IgA contents increased to different degrees in the sera from the inoculated mice, which were remarkably higher than those of the controls inoculated VR1020 packed with CNP (P<0.05); so were the IL-2, IL-4 and IL-6 contents in the sera of the immunized mice. The number of white blood cells and lymphocytes significantly increased respectively in the vaccinated mice, compared with those of controls. These mice were orally challenged with virulent E. coli 35 days post-inoculation, and all the immune responses were significantly higher than those of the control except the number of neutrophils. The mice inoculated with VRMIL-2 survived healthily, while the mice of control group were ill with the evident lesions. Although there are no remarkable differences between the cellular and humoral immune indexes of mice inoculated with CNP-VRMIL-2 and nude VRMIL-2 (P>0.05), the dosage of CNP-VRMIL-2 is only one fifth of the VRMIL-2. These indicated that entrapment of mIL-2 gene with chitosan nanoparticles could remarkably enhance the expression of mIL-2 in vivo, and significantly raise the levels of cellular and humoral immune, and increase the resistance of mice against E. coli infection. The results suggested that chitosan nanoparticles and IL-2 gene could be used as an effective immunoenhancer to increase the immunity of animals against infection.
Adjuvants, Immunologic ; pharmacology ; Animals ; Chitosan ; pharmacology ; Escherichia coli Infections ; immunology ; prevention & control ; Female ; Immunoglobulin G ; blood ; Interleukin-2 ; biosynthesis ; genetics ; pharmacology ; Mice ; Nanostructures

Objective To investigate the dosimetric effect of same activity and same number of 125I seeds arranged in axial train but with different spacing.Methods A total of 27 film dosimeters were randomly and equally divided into group A,B and C.Each film was irradiated by three 125I seeds (activity of 1.48×107 Bq).The seeds were arranged in line,and their axial spacing was 1 mm,5 mm and 10 mm respectively.Image analysis software was used to draw iso-gray contour curves of 20,25,30 and 40 gray value on the films,and to calculate the areas contained by each curve.Results Multi-sample mean comparison variance analysis showed that the differences in area contained by 20 and 25 iso-gray contour curves were statistically significant between each other among the three groups (P＜0.001).The difference in area contained by 30 iso-gray contour curve between group A and group B was not statistically significant (P＞ 0.05),while the difference in area contained by 30 iso-gray contour curve between group A and group C as well as between group B and group C was statistically significant (P＜0.001).No statistically significant difference in area contained by 40 iso-gray contour curve existed between each other among the three groups (P=0.99).Conclusion Different spacing arrangement of same activity and same number of 125I seeds can directly influence the peripheral dose distribution.In specific dose range,seed-spacing of 1 mm arrangement may obtain better dose distribution than seed-spacing of 5 mm or 10 mm arrangement can do.

ObjectiveTo explore the effective components， targets， and mechanism of Houttuynia cordata against lung cancer by means of systems pharmacology and further to provide a reference for the further development and clinical application of this medicinal. MethodChemical components of H. cordata were retrieved from Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform （TCMSP） and the active components were screened based on oral bioavailability （OB） and drug-likeness （DL）. Then the potential targets were predicted， followed by enrichment analysis. Finally， sodium houttuyfonate （SH） was selected for verifying the anti-tumor mechanism. Cell counting kit-8 （CCK-8） assay was used to evaluate the effect of SH on the in vitro proliferation of two lung cancer cell lines： A549 and LLC， and the regulation of tumor-related proteins by SH was verified by Western blot. ResultA total of 7 active compounds and 352 targets of the active components were screened out. According to the enrichment analysis of targets， H. cordata had potential therapeutic effects on cancer. SH had inhibitory effect on both A549 and LLC. Western blot results showed that G₁/S-specific Cyclin D₁， E₁ and cyclin-dependent kinase （CDK）2， CDK4 all tended to be down-regulated， and Janus kinase 2 （JAK2）/signal transducer and activator of transcription 3 （STAT3） also changed significantly. ConclusionH. cordata has the potential anti-tumor effects by arresting the tumor cells in the G₁ phase through the JAK2/STAT3 pathway.

Objective:To explore the influence of chronic rhinitis on depressive symptoms of college freshmen and the mediating effect of avoidant personality.Methods:A cluster sampling method was used to survey 8 079 college freshmen from April 2018 to October 2018 using the Beck depression inventory and the avoidant personality diagnosis questionnaire based on DSM-Ⅳ.SPSS 25.0 software was used for descriptive statistics and Spearman correlation analysis, and the macro program PROCESS version 3.3 was used for the mediating effect.Results:(1) The detection rates of chronic rhinitis, avoidant personality and depressive symptoms were 22.90% (1 850/8 079), 19.22% (1 553/8 079) and 6.28% (507/8 079). The scores for avoidant personality disorder and depressive symptoms were 1.00 (0, 3.00) and 1.00 (0, 4.00), respectively. (2) The chronic rhinitis, avoidant personality and depressive symptoms were positively correlated ( rchronic rhinitis-avoidant personality=0.094, rchronic rhinitis-depressive symptoms=0.095, ravoidant personality-depressive symptoms=0.416, all P<0.001). (3) Chronic rhinitis could positively predict depressive symptoms ( β=1.113, P<0.001). (4) Avoidant personality played a mediating role between chronic rhinitis and depressive symptoms ( β=1.094, P<0.001), and accounted for 44.92%(0.500/1.113) of the total effect. Conclusion:Chronic rhinitis directly affect the depressive symptoms of college freshmen, and indirectly affect the depressive symptoms of college freshmen through the mediating role of avoidant personality.

Background and purpose:Follow-up data of 6 737 patients undergoing surgery for gastric cancer were collected based on hospital registration,and the 1-,3-and 5-years observed overall survival(OS)rates and disease-free survival(DFS)rates were analyzed to provide real-world research evidence for the prevention and control of gastric cancer and policy making in China.Methods:A total of 6 737 gastric cancer patients who underwent surgical treatment at Fudan University Shanghai Cancer center from 2015 to 2020 were included in this study.Clinical information and the follow-up endpoint data were collected through medical records review,telephone visits and death registry data linkage.The last follow-up date was November 30,2023.Kaplan-Meier method was applied in evaluating the 1-,3-and 5-year OS rate and DFS rate,and survival data were described by different subgroups including age group,gender,treatment period,tumor staging,and pathological characteristics.Results:With a median follow-up time of 50.99 months,the 5-year OS rate of surgically resected gastric cancer patients was 70.37%,and 5-year DFS rate in Ⅰ-Ⅲ stage cases was 69.46%.The 5-year OS rates of stage Ⅰ,Ⅱ,Ⅲ and Ⅳ were 94.32%,82.56%,51.01%and 23.97%,respectively.The differences in survival among patients with different age,tumor location,gross classification,Borrmann classification and Laurence classification were significant.Conclusion:Staging is an important factor directly affecting the survival of gastric cancer patients.Screening and early diagnosis and treatment in large population,especially high-risk group,should be strengthened to further improve the patients'survival.