Obiective To detect the carotid-femoral pulse wave veloeity(CF-PWV) and evaluate relation in pulse pressure (PP) and pulse wave velocity ('PWV), and prove the effect of dynamic error analysis system on pulse wave velocity measure. Methods 486 cases with essential hypertension were detected with carotid-femoral pulse wave velocity. The dynamic error was controlled in three kinds of condition: 15%>error>10%, 10%>error>5% and 5%>error, which PWV values were tested repeatedly with the effect of different errors observed. At the same time the blood pressure was measured and the pulse pressure was calculated. Results The pulse wave velocity which pulse pressure ≥60mm Hg (1mm Hg=0.133 kPa) was significantly higher than pulse pressure <60turn Hg [(14.2± 2.34)m/s and (8.5±1.81)m/s, P<0.001] . Pulse wave velocity and pulse pressure and age showed a significant positive correlation (pulse pressure r=0.529, P=0.000; age r= 0.331 P=0.003).When dynamic error is more than 10% and less than 15%, the diversity of PWV values showed the significance of statistics. Conclusion The effect of dynamic error analysis system on pulse wave velocity measure, less error test pattern is advantageous to enhance accuracy. The pulse pressure is closely related to pulse wave velocity. Arterial pulse wave velocity is a new evaluation of the indicators of arterial stiffness, and it's more scientific, accurate and eonvenient.

Medical equipment is playing an important role in medical treatment, teaching and scientific research, especially in how to improve the utilization rate of large and middle medical equipment to ensure the safety and integrity of medical equipment in the clinical operation, and this is a very significant job. Through the operation of large and middle medical equipment to conduct analysis, comparison and statistics, it can be found the issue and adjusts timely to improve the medical equipment management of the technological level and economic benefits.

Objective To investigate the incidence and influencing factors of aldosterone escape in patients with non-diabetic nephropathy by RASI-therapy. Methods A total of 104 patients with non-diabetic nephropathy were treated with ARB or combination therapy of ACEI and ARB in a mean follow-up period of 12 months. Aldosterone escape was determined according to the change of plasma aldosterone concentration before and after treatment during 6-month and 12-month ACEI/ARB treatment, while the influencing factors of aldosterone escape in patients with non-diabetic nephropathy was also analyzed after therapy with RASI . Results In 12 months, the incidence of aldosterone escape was significantly higher than that in 6 months (26.92% vs. 14.42%, P = 0.007). After 12-month treatment, the difference was statistically significant in incidence of aldosterone escape among different stages of CKD (P = 0.027). Compared with 6-month incidence of aldosterone escape in the losartan group, 12-month incidence increased evidently (P = 0.020). The Ald level was positively correlated with urinary protein excretion and the Scr level (r = 0.431, P = 0.003 and r = 0.336, P = 0.009, respectively), and negetively correlated with levels of the eGFR (r = -0.275, P = 0.006). Univariate Logistic regression demonstrated that risk factors of aldosterone escape included pre-treatment values of the urinary protein excretion (OR = 3.671, P = 0.028) and the eGFR (OR = 0.972, P = 0.019). Multivariate Logistic model revealed pre-treatment values of the eGFR was positively associated with aldosterone escape (OR = 0.970, P = 0.012). Conclusion The incidence of the aldosterone escape increases along with the time of treatment. Renal function has correlated with aldosterone escape and pre-treatment value of the eGFR is an independent risk factor of aldosterone escape.

Objective To compase laparoscopic vs open appendectomy in the treatment of appendicitis.Methods The clinical data of 1 716 appendicitis patients are studied in the form of retrospective summary,who were hospitalized in Jilin University China-Japan Union Hospital from 2009 to 2014.Patients were divided into laparoscopic appendectomy group and open appendectomy group.Duration of operation,surgical complications and postoperative recovery were evaluated.The chi-test and the student t test were used for statistics.Results More patients in open group with chronic lung disease,or a history of previous abdominal surgery than in the laparoscopic group (x2 =3.527,22.804,P ＜ 0.05);the postoperative deep vein thrombosis,intestinal obstruction,abdominal abscess and infection of incision in open group were more often seen than in laparoscopic group (x2 =4.179,4.71,7.351,8.766,P ＜ 0.05);Open group scored higher than laparoscopic group on the index of 24 hours of postoperative pain (t =-3.163,P =0.004);duration of surgery was similar (t =1.754,P =0.092 2);the laparoscopic group was better in recovery time of postoperative intestinal peristalsis,average length of scar and the average hospital stay (t =3.460,-15.335,-3.629,P ＜ 0.05).While the average hospitalization cost in open group is less than in the laparoscopic group (t =5.763,P =0.001).Conclusions Both laparoscopic appendectomy and open appendectomy were effective for the treatment of appendicitis,while laparoscopic appendectomy is superior to open procedure in reducing postoperative pain,postoperative complications promoting rapid recovery,shortening hospital stay and more cosmetic.

Background To investigate the expression of the early growth response gene-1 ( Egr-1 ) mRNA after focal cerebral ischemia / reperfusion in rats.Methods Ten healthy male SD rats weighing 200 ～ 250 g were used to create model of focal cerebral ischemia. The expression of Egr-1 after focal cerebral ischemia/reperfusion in rats was determined using in situ hybridization and RT-PCR.Results (1) The result of the in situ hybridization: A trace amount of Egr-1 mRNA expressed in the neurons and the glial cells in the sham operated group. The expression of Egr-1 mRNA at the ischemic side increased dramatically following ischemia and reached peaks after 4 hours' reperfusion. Egr-1 expression started to subside following 22 hours' reperfusion and further decreased following 166 hours' reperfusion, which was still significantly higher than that in the sham operated group. (2) The result of RT-PCR: The expression of Egr-1 mRNA at the ischemic side was significantly higher than that in the sham operated group at all time points after ischemia/reperfusion in the rats(P ＜0. 01). Expression of Egr-1 increased 2 h after ischemia and reached the peak 4 h following reperfusion, and then decreased dramatically at 46 h after reperfusion which was still higher than that in the sham operated group (P ＜ 0. 01). As the ischemia/reperfusion period prolonged, the expression of Egr-1 mRNA increased gradually, but still detectable even 166 h following reperfusion. The expression of Egr-1 was significantly higher than that in the sham operated group at all time points (P ＜0. 01).Conclusions The expression of Egr-1 mRNA increase in the neurons and the glial cells after ischemia/reperfusion, which may have protective effects on ischemic brain tissues.

OBJECTIVE: To explore whether there was tissue remodeling in the nasal mucosa of allergic rhinitis (AR) patients and detect the protein expressions of transforming growth factor beta1 (TGF-beta1), matrix metalloproteinases 9 (MMP-9) and tissue inhibitors of matrix metalloproteinases 1 (TIMP-1) in the nasal mucosa of these patients. METHOD: Pathologic staining was used to explore the mucosa of the middle turbinate tissues from 16 patients with mild AR, from 12 patients with severe AR, and from 15 non-AR, respect. The infiltrating of eosinophils and damage of epithelium were examined by the hematoxylin-eosin staining; goblet cells were counted by the alcian blue-periodic acid-schiff staining; the percentage area of extracellular matrix was determined by the MT; the protein expressions were measured by ELISA of TGF-beta1, MMP-9 and TIMP-1 in the middle turbinate tissues. RESULT: Compared with the control group, significant eosinophil infiltration and goblet cells were observed in both AR groups (P < 0.05). Evident epithelial damage and extracellular matrix deposition were observed in severe-AR group (P < 0.05). The expressions of TGF-beta1, MMP-9 and TIMP-1 in AR tissues were significant increased (P < 0.05). CONCLUSION The nasal mucosa remodeling was observed in AR groups. The characteristics were as follows: eosinophils infiltration, epithelial damage, goblet cells hyperplasia and extracellular matrix deposition. TGF-beta1, MMP-9, TIMP-1 may play a role in the tissue remodeling processes.
Adolescent ; Adult ; Case-Control Studies ; Female ; Humans ; Male ; Matrix Metalloproteinase 9 ; metabolism ; Middle Aged ; Nasal Mucosa ; metabolism ; pathology ; Rhinitis, Allergic, Perennial ; metabolism ; pathology ; Tissue Inhibitor of Metalloproteinase-1 ; metabolism ; Transforming Growth Factor beta1 ; metabolism ; Young Adult

Objective To explore the effect of folate on cell proliferation and apoptosis as well as on DNA methylation,expression of mRNA and protein of fragile histidine triad(FHIT)gene in cervical cancer cells. Methods Cervical cancer cell lines including CaSki(HPV16-positive)and C33A(HPV-negative)were cultured in vitro with different folate concentrations. Cell proliferation and apoptosis were determined by viable cell counting and flow cytometry while FHIT gene DNA methylation was used with methylation specific PCR(MSP). Both gene expression of FHIT protein and mRNA were detected by Western blot and Real-time PCR,respectively. Results Folate could inhibit the proliferation and promote the apoptosis in two kinds of cervical cancer cells. The number of viable cells decreased (C33A:r=0.98,P<0.001;CaSki:r=0.98,P<0.001) and the apoptosis rate increased(C33A:r=0.98,P<0.001;CaSki:r=0.99,P<0.001)along with the increase of folate concentration. FHIT gene DNA methylation showed all positive at the folate concentration levels of 1μg/ml and 10μg/ml,partially positive at 100μg/ml and 250μg/ml,but negative at 500μg/ml and 1 000μg/ml in both C33A and CaSki cells. Comparing with the control group,the mRNA or protein relative expression levels of FHIT gene in different folate concentrations were statistically significant in two kinds of cells,and showing that the FHIT gene mRNA expression(C33A:r=0.96,P<0.001;CaSki:r=0.94,P<0.001)and protein expression (C33A:r=0.96,P<0.001;CaSki:r=0.97,P<0.001) both increased along with the increase of folate concentration. Conclusion Our findings indicated that adequate folate seemed to be able to effectively inhibit the proliferation of cervical cancer cells and facilitate their apoptosis in vitro,so would reverse the aberration mRNA and protein expression of FHIT gene.

Objective: To investigate the effect of different mechanisms of liver-protection drugs in clinic and compare which one is best for the proliferation of irradiated HL-7702, laying the basis of liver-protection drugs choose in clinic on theory and practice. Methods: Human liver parenchyma cells HL-7702 were given single 6 MV X ray irradiation at a dose of 10Gy, the cells’ morphology were detected under an inverted microscope at 24h, 48h and 72h. Then, MTT was used to assess the survival rate of the cells to evaluate the effect of the X ray. The representive medicines which mechanism may relate to RILD were chosen and diluted into various concentrations with culture medium according to clinical and relative reports. Different concentrations of medicines were used to protect the cells damaged by the X ray. Comparing the effect with MTT and measure SOD, MDA for the best one. Further research on its protection of oxidative damage. T-test, F test and non- paramiter test were used for statistical analysis. Results: 2.5 mg/ml and 1 mg/ml of magnesium isoglycyrrhizinate both have an effect on the proliferation of liver cells, especially the concentration of 1 mg/ml. The injection of polyene phosphatidyl choline show trivial effect at the concentrations of 250 μmol/L and reduced glutathione(GSH) did not demonstrate relative functions. Further research on the magnesium isoglycyrrhizinate, found its protection at 48h to oxidative damage (P < 0.05), but the effect is weak at 24h and 48h. Conclusions In three kinds of representing medicines, magnesium isoglycyrrhizinate has preferable effects on liver parenchyma cells and show a bright future in the treatment of RILD.

OBJECTIVETo explore the effect of folate on cell proliferation and apoptosis as well as on DNA methylation, expression of mRNA and protein of fragile histidine triad (FHIT)gene in cervical cancer cells.

METHODSCervical cancer cell lines including CaSki (HPV16-positive) and C33A (HPV-negative)were cultured in vitro with different folate concentrations. Cell proliferation and apoptosis were determined by viable cell counting and flow cytometry while FHIT gene DNA methylation was used with methylation specific PCR (MSP). Both gene expression of FHIT protein and mRNA were detected by Western blot and Real-time PCR, respectively.

RESULTSFolate could inhibit the proliferation and promote the apoptosis in two kinds of cervical cancer cells. The number of viable cells decreased (C33A:r = 0.98, P < 0.001; CaSki:r = 0.98, P < 0.001) and the apoptosis rate increased (C33A:r = 0.98, P < 0.001; CaSki:r = 0.99, P < 0.001) along with the increase of folate concentration. FHIT gene DNA methylation showed all positive at the folate concentration levels of 1 µg/ml and 10 µg/ml, partially positive at 100 µg/ml and 250 µg/ml, but negative at 500 µg/ml and 1 000 µg/ml in both C33A and CaSki cells. Comparing with the control group, the mRNA or protein relative expression levels of FHIT gene in different folate concentrations were statistically significant in two kinds of cells, and showing that the FHIT gene mRNA expression (C33A:r = 0.96, P < 0.001; CaSki:r = 0.94, P < 0.001) and protein expression (C33A:r = 0.96, P < 0.001; CaSki:r = 0.97, P < 0.001) both increased along with the increase of folate concentration.

CONCLUSIONOur findings indicated that adequate folate seemed to be able to effectively inhibit the proliferation of cervical cancer cells and facilitate their apoptosis in vitro, so would reverse the aberration mRNA and protein expression of FHIT gene.

Acid Anhydride Hydrolases ; genetics ; metabolism ; Apoptosis ; Cell Line, Tumor ; Cell Proliferation ; Culture Media ; chemistry ; DNA Methylation ; Female ; Folic Acid ; pharmacology ; Humans ; Neoplasm Proteins ; genetics ; metabolism ; Uterine Cervical Neoplasms ; genetics ; pathology