ObjectiveTo evaluate the impact of compliance with antihypertensive therapy in pailents with essential hypertension on risk for their first-ever cerebral infarction.MethotisQuestionnaire survey and auxiliary examinations were conducted in 114 patients with essential hypertension hospitalized for acute cerebral infaretion at the First Hospihal Affiliated to Harbin Medical University during December 2006 to December 2007,as well as in another 114 patients with essential hypertensive without history of cerebral infarction as controls during the sanle period.Univariate and multivariate 10gistic regression analyses were performed to study the relationship between first-ever cerebral infarction and compliance with antihypertensive agents and other relevant factors.ResultsAntihypertensive agents compliance,course of hypertension,and history of smoking and alcohol drinking could significantly affect their first occurrence of cerebral infarction in patients with essential hypertension(P＜0.05),with odds ratios(OR)of 0.429(95%C10.186-0.993) and 2.142(95% CI 1.052-4.364)for good and poor compliance with antihypertensive agents,respectively,as compared to those without antihypertensive treatmenL Mild drinking was a protective factor for cerebral infarction with an OR of 0.494(95%CI 0.252-0.968).kngth of hypertension with 10-19-years and more than or equal to 20 years.as compared to those with le88 than five years of hypertension,was also a risk factor for it,with an OR of 2.118(95% CI 1.075-4.174).ConclusionsCompliance of essential hypertensive patients with antihypertensive therapy was an important factor that affect their contracting first-ever cerebral infarction.Good compliance could obviously refrain them from it.Patients with poor-compliance or without treatment prone to contract cerebral infarction more easily than those with good compliance.It is necessary to improve compliance with antihypertensive agents in patients with essential hypertension as soon as possible.as well as quitting smoking and limiting alcohol drinking for prevention and control for their first-ever cerebral infarction.

Objective To analyze the psychological condition of postgraduates in clinical hos-pitals of colleges and universities before and after the implementation of psychological mentor scheme so as to evaluate the effect. Methods Quantitative questionnaire (SCL-90 scale) and qualitative fo-cus interview were used to compare psychological condition of postgraduates. Totally 182 copies of questionnaires were sent to two hospitals (A and B) respectively. Then, psychological mentor scheme was carried out in A hospital. Afterwards, 206 and 140 copies of questionnaires were sent again to the hospitals respectively to compare the results. Eight student psychological consultants, 12 postgraduates and 5 postgraduate management staff were enrolled in qualitative focus interview. Excell2003 software was adopted to establish the database and SPSS 11.0 software was used for statistical analysis. Descrip-tive analysis, frequency analysis, t test, chi-square test and variance analysis were adopted for data analysis. P<0.05 signifies for statistically significant difference. Results Mental health status of both groups was better than the national level before the implementation (total SCL score: A hospital=118 . 08 ±36.20; B hospital =100.33 ±22.90). However, SCL-90 score of A hospital was decreased (total SCL score: 102.58 ±25.23) and that of B hospital (total SCL score:134.01 ±38.92) was in-creased (part of items higher than the adult national norm) at one year after conducting psychological mentor scheme. Conclusions Psychological mentor scheme can effectively relieve stress and interper-sonal stress so as to reduce the general psychological problems and can help to improve mental health of the students.

Oxidation method with sodium iodide was used to synthesize immunogenic antigen (PF-BSA) and coating antigen (PF-OVA) of paeoniflorin. UV spectroscopy showed that paeoniflorin was successfully conjugated with BSA and OVA. After immunized by PF-BSA, the mice can produce anti-paeoniflorin antibodies specifically. The ELISA test results showed the high titer (1:12 800) and specificity (IC50 = 0.791 mg x L(-1)) of the antiserum from mice injected with PF-BSA. Also, the antiserum showed low cross activities against nine traditional Chinese medicine (TCM) of small molecules. These artificial antigens were successfully synthesized and the anti-paeoniflorin antibody well prepared, which provides the experimental basis for the further study of ELISA and its kit.
Animals ; Antibodies ; analysis ; Antigens ; chemistry ; immunology ; Drugs, Chinese Herbal ; chemistry ; Enzyme-Linked Immunosorbent Assay ; Glucosides ; chemistry ; immunology ; Male ; Mice ; Mice, Inbred BALB C ; Monoterpenes ; chemistry ; immunology ; Serum Albumin, Bovine ; chemistry ; immunology

Objective To develop an HPLC wavelength switching combined gradient elution method for simultaneous determi?nation of nine components in Kanglixin Jiaonang(KLXJN). Methods The analysis was performed on a Kromasil C18(4.6 mm×250 mm, 5μm)with gradient elution by using the mobile phase of acetonitrile-methanol(1:2)(A)-0.1%phosphoric acid solution(B). The col?umn temperature was maintained at 30℃and the flow rate was 0.9 ml/min. The detection wavelengths were set at 225 nm for costuno?lide(1)and dehydrocostus lactone(2),254 nm for aloe-emodin(3),rhein(4),emodin(5)and physcion(6),and 425 nm for bisde?methoxycurcumin(7),demethoxycurcumin(8)and curcumin(9). Results The calibration curves were linear within the range(μg/ml)of 6.610-132.2(r=0.9999)for 1,7.890-157.8(r=0.9996)for 2,14.07-281.4(r=0.9992)for 3,3.450-69.00(r=0.9997)for 4, 2.670-53.40(r=0.9998)for 5,3.760-75.20(r=0.9999)for 6,5.880-117.6(r=0.9996)for 7,8.490-169.8(r=0.9993)for 8,and 13.91-278.2(r=0.9991)for 9,respectively. The recoveries for 1,2,3,4,5,6,7,8 and 9 were 98.28%(RSD=1.09%),97.76%(RSD=0.80%),99.08%(RSD=1.72%),97.19%(RSD=1.00%),98.45%(RSD=1.24%),96.96%(RSD=1.21%),98.51%(RSD=1.55%), 97.52%(RSD=0.83%),and 100.04%(RSD=0.93%),respectively. Conclusion The established method is accurate,rapid and can be used for the quality control of KLXJN.

Objective To knockout interferon alpha/beta receptor subunit 1(IFNAR1) gene in human colorectal adenocarcinoma cells Caco-2 using clustered regularly interspaced short palinmic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)system to construct IFNAR1 knockout Caco-2 cell line.Methods The single guide RNA(sgRNA)sequence was designed to specifically recognize the exon region of IFNAR1 gene using CRISPR/Cas9 technology,and the LentiCRISPRv2-IFNAR1-sgRNA recombinant plasmid was constructed.Caco-2 cells were infected with the plasmid packaged by lentivirus and screened by puromycin resistance.The obtained monoclonal cell lines were cultured by limited dilution method,which were verified for the effect of IFNAR1 gene knockout by target gene sequencing and Western blot,and detected for the mRNA levels of CXC chemokine ligand 10(CXCL10)and interferon-stimulatd gene 20(ISG20)in IFNAR1knockout cells by adding exogenous IFNβ.Results Sequencing results of plasmid LentiCRISPRv2-IFNAR1-sgRNA showed that the insertion sites were all located at the sticky end of BsmBⅠenzyme digestion.Two IFNAR1 knockout monoclonal cell lines were obtained.The sequencing results showed that Caco-2-IFNAR1-KO1 had 5 bp deletion in the sixth exon of IFNAR1,and Caco-2-IFNAR1-KO2 had 18 bp deletion and 1 bp insertion in the seventh exon.Compared with wild-type Caco-2 cells,Caco-2-IFNAR1-KO1 and Caco-2-IFNAR1-KO2 cells showed no expression of IFNAR1 protein.Compared with no IFNβ stimulation,the mRNA levels of CXCL10 gene(t = 0.566 and 1.268 respectively,P>0.05)and ISG20 gene(t =1.522 and 1.733 respectively,P>0.05)in Caco-2-IFNAR1-KO1 and Caco-2-IFNAR1-KO2 cells stimulated by 50 ng/mL IFNβ showed no significant increase.While compared with those of wild-type Caco-2 cells,the mRNA levels of CXCL10gene(t = 6.763 and 6.777 respectively,P<0.05)and ISG20 gene(t = 5.664 and 5.65 respectively,P<0.05)in Caco-2-IFNAR1-KO1 and Caco-2-IFNAR1-KO2 cells decreased significantly under the stimulation of 50 ng/mL exogenous IFNβ.Conclusion Caco-2 cell line with IFNAR1 knockout was successfully constructed by using CRISPR/Cas9 technology,and the downstream molecules activated by IFNAR(interferon alpha/beta receptor)in this cell line were obviously inhibited,which provided a powerful tool for further exploration of the innate immune response and replication packaging mechanism of Caco-2 cells after virus infection.

AIMTo investigate the transforming growth factor beta1 (TGF-beta1) and basic fibroblast growth factor (bFGF) expressions in benign prostatic hyperplasia (BPH) and the effect of beta-radiation.

METHODSTGF-beta1 and bFGF expression was studied by means of an immunohistochemical method in nine normal prostatic (NP) tissues, 15 hyperplastic prostatic tissues and 35 hyperplastic prostatic tissues treated with 90Sr/90Y.

RESULTSThe TGF-beta1 expression in the epithelium and stroma of normal prostatic tissues was 68.2 % +/- 10.5 % and 29.7 % +/- 4.6 %, respectively, while it was 64.8 % +/- 9.3 % and 28.6 % +/- 4.1 %, respectively, in hyperplastic prostatic tissues. Compared with the controls, TGF-beta1 expression in the epithelia and stroma of BPH treated with 90Sr/90Y increased significantly (P <0.01). The bFGF expression in epithelia and stroma of normal prostatic tissues was 17.4 % +/- 3.7 % and 42.5 % +/- 6.8 %, respectively, and was 46.3 % +/- 8.2 % and 73.2 % +/- 12.1 %, respectively, in hyperplastic prostatic tissues. Compared with the controls, expressions of bFGF in the epithelia and stroma of BPH treated with a 90Sr/90Y prostatic hyperplasia applicator decreased significantly (P <0.01).

CONCLUSIONExposure of beta-rays had noticeable effects on BPH tissues, enhancing TGF-beta1 expression and inhibiting bFGF expression.

Aged ; Aged, 80 and over ; Beta Particles ; Case-Control Studies ; Fibroblast Growth Factor 2 ; metabolism ; radiation effects ; Gene Expression ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Prostate ; metabolism ; radiation effects ; Prostatic Hyperplasia ; metabolism ; radiotherapy ; Strontium Radioisotopes ; therapeutic use ; Transforming Growth Factor beta ; metabolism ; radiation effects ; Transforming Growth Factor beta1 ; Yttrium Radioisotopes ; therapeutic use

OBJECTIVETo establish a drug-resistance cell line of human glioma mediated by MGMT.

METHODSSimulated the clinical usage of BCNU to establish a BCNU-resistant human glioma subline by cyclic exposing the U251 parent cells to a constant concentration of BCNU. The resistance index and the expression of MGMT mRNA of U251/BCNU were detected and compared the difference of in vitro proliferation between U251 and U251/BCNU.

RESULTSA subline--U251/BCNU was successfully established in about 4-month culture, which had a stable resistance to BCNU. U251/BCNU cells showed 17-fold higher resistance to BCNU than did U251 cells by MTT assay, while U251/BCNU cells expressed MGMT mRNA. The doubling time of U251 and U251/BCNU had no statistical difference.

CONCLUSIONA drug-resistance cell line of human glioma mediated by MGMT is established, which could provide experimental basis for further studies on the resistance mechanism and reversal methods of glioma chemotherapy.

ATP-Binding Cassette, Sub-Family B, Member 1 ; biosynthesis ; Brain Neoplasms ; pathology ; Cell Line, Tumor ; DNA Modification Methylases ; biosynthesis ; genetics ; Drug Resistance, Neoplasm ; genetics ; Glioma ; pathology ; Humans ; O(6)-Methylguanine-DNA Methyltransferase ; metabolism ; physiology

BACKGROUNDIt is still a challenge for the cardiac surgeons to achieve adequate revascularization for diffused coronary artery disease (CAD). Coronary endarterectomy (CE) offers an alternative choice of coronary artery reconstruction and revascularization. In this study, short-term result of CE combined with coronary artery bypass graft (CABG) was discussed in the treatment for the diffused CAD.

METHODSFrom January 2012 to April 2014, 221 cases of CABG were performed by the same surgeon in our unit. Among these cases, 38 cases of CE + CABG were performed, which was about 17.2% (38/221) of the cohort. All these patients were divided into two groups: CE + CABG group (Group A) and CABG alone group (Group B). All clinical data were compared between the two groups, and postoperative complications and in-hospital mortality were analyzed. The categorical and continuous variables were analyzed by Chi-square test and Student's t-test respectively.

RESULTSDiabetes mellitus, hypertension, hyperlipidemia, and peripheral vascular disease were more common in group A. In this cohort, a total of 50 vessels were endarterectomized. Among them, CE was performed on left anterior descending artery in 11 cases, on right coronary artery in 29 cases, on diagonal artery in 3 cases, on intermediate artery in 2 cases, on obtuse marginal artery in 5 cases. There was no hospital mortality in both groups. The intro-aortic balloon pump was required in 3 cases in Group A (3/38), which was more often than that in Group B (3/183). At the time of follow-up, coronary computed tomography angiogram showed all the grafts with CE were patent (50/50). There is no cardio-related mortality in both groups. All these patients were free from coronary re-intervention.

CONCLUSIONSCoronary endarterectomy + CABG can offer satisfactory result for patients with diffused CAD in a short-term after the operation.

Aged ; Coronary Artery Bypass ; adverse effects ; methods ; Coronary Artery Disease ; surgery ; Endarterectomy ; methods ; Female ; Hospital Mortality ; Humans ; Male ; Middle Aged ; Peripheral Vascular Diseases ; surgery ; Postoperative Complications ; Treatment Outcome

OBJECTIVETo observe the effects of complement fragment C3f on expression and secretion of collagen I, III and transforming growth factor( TGF)-beta1 in human embryonic lung fibroblast (MRC-5) cells.

METHODSMRC-5 cells were cultured with C3f (the synthetic 17 peptides fragments of complement C3). The extracellular and intracellular expression levels of type I, III collagens and TGF-beta1 in MRC-5 cultures were detected by ELISA and immunohistochemistry, respectively.

RESULTSThe expression levels of type I, III collagen and TGF-beta1 in the supernatant of MRC-5 cultures decreased significantly with the concentrations of C3f as compared with controls (P < 0.05). Also the expression level of TGF-beta1 in MRC-5 cytoplasm reduced significantly as compared with controls (P < 0.05).

CONCLUSIONThe results of present in vitro study showed that the complement fragment C3f could reduce the formation of TGF-beta1 and type I, III collagens in MRC-5 cells, and inhibit the lung tissue fibrosis.

Cell Line ; Collagen Type I ; metabolism ; Collagen Type III ; metabolism ; Complement C3b ; pharmacology ; Fibroblasts ; drug effects ; metabolism ; Humans ; Lung ; cytology ; drug effects ; embryology ; Transforming Growth Factor beta1 ; metabolism

OBJECTIVETo observe monocyte (Mo) development in wild type C57BL/6 mice and apoE gene knockout (apoE(-/-)) mice, and to evaluate the immuno-regulatory effect of Huanglian Jiedu Decoction (HJD) on peripheral Mo development in apoE(-/-) mice.

METHODSFour, 8, 12, and 16 weeks old female C57BL/6 mice were set up as control groups of different ages, while 4, 8, 12, and 16 weeks old female apoE(-/-) mice were set up as hyperlipidemia groups of different ages. Four-week old female C57BL/6 mice were recruited as a blank group. Four-week old female apoE(-/-) mice were randomly divided into the control group, the Western medicine group, and the Chinese medicine group by paired comparison, 5 in each group. Equivalent clinical dose was administered to mice according to body weight. Mice in the Western medicine group were administered with Atrovastatin at the daily dose of 10 mg/kg by gastrogavage, while those in the Chinese medicine group were administered with HJD at the daily dose of 5 g/kg by gastrogavage. Body weight was detected each week. After 4 weeks blood lipids levels (such as TG, TC, LDL-C, and HDL-C), and the proportions of Mo and Ly6c(hi) were detected.

RESULTSCompared with 4-week-old homogenic mice, the proportion of Mo decreased in 16-week-old C57BL/6 mice (P < 0.05). Levels of TC and TG, and the proportion of Ly6c(hi) subtype increased, but the proportion of Mo de- creased in 8-week-old apoE(-/-) mice (P <0. 05). Levels of TC, TG, and LDL-C increased in 12-week-old apoE(-/-) mice (P < 0.05). Levels of TC, TG, LDL-C, and HDL-C increased in 16-week-old apoE(-/-) mice (P < 0.05, P < 0.01). Compared with 8-week-old homogenic mice, the proportion of Mo decreased in 16-week-old C57BL/6 mice (P < 0.05); levels of TC and LDL-C increased in 12-week-old apoE(-/-) mice (P < 0.05); levels of TC and HDL-C increased in 16-week-old apoE(-/-) mice (P < 0.05, P < 0.01). Compared with C57BL/6 mice of the same age, TC and TG increased, HDL-C decreased (P < 0.01) in 4-and 8-week-old apoE(-/-) mice (P < 0.01); levels of TC, TG, LDL-C increased, and HDL-C level decreased in 12- and 16-week-old apoE(-/-) mice (P < 0.05, P < 0.01); the proportion of Mo increased in 4-week-old apoE(-/-) mice (P < 0.05); proportions of Mo and Ly6c(hi) increased in 8-week-old apoE(-/-) mice (P < 0.05). Compared with the blank control group, levels of TC, TG, and LDL-C, proportions of Mo and Ly6c(hi) increased (P < 0.01, P < 0.05), but HDL-C level decreased (P <0. 01) in the control group after intervention. Compared with the control group, body weight gained less in the Western medicine group and the Chinese medicine group (P < 0.05); the proportion of Ly6c(hi) subtype decreased in the Chinese medicine group (P < 0.05).

CONCLUSIONSIn development process blood lipids levels in apoE(-/-) mice are not only associated with age. Blood lipids levels induced growth changes in natural immune system are also correlated with age. In early stage of lipids development HJD intervention could correct this special immune disorder in apoE(-/-) mice.

Animals ; Apolipoproteins E ; genetics ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Gene Knockout Techniques ; Hyperlipidemias ; Lipids ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Monocytes ; physiology