Objective To find out the relationship between ambulatory pulse pressure (24 h PP) and left ventricular hypertrophy (LVH) and the enlarged diameter of aortic root (AOD) in aged pati ents with essential hypertension.Methods 118 aged patients with essential hypertension we r e examined by ambulatory blood pressure (ABP) and echocardiography,the different index of ABP and left ventricular mass index (LVMI) and AOD were measured.The p atients were divided into group A (24 h PP≥60 mmHg) and group B (24 h PP

ObjectiveTo study the transcript atlas of cell immunity-associated genes in 8 liver cell types including hepatocytes, bile duct epithelial cells, oval cells, hepatic stellate cells, sinus endothelial cells, Kupffer cells, pit cells and dendritic cells from the rat regenerating liver. Methods Isolation of rat 8 liver cell types, detection of their genes expression change and the prediction physiological activities were accorded to cluster program, and the methods of bioinformation and systematic biology, and their gene expression patterns were analyzed by Microsoft Excel software. Results A total of 40 blood coagulation-associated genes yielded the meaningful expression changes in liver regeneration. Serpine1, a2m in eight liver cell types, vwf, klkb1 in seven liver cell types other than Kupffer cells, and other genes in the two or more liver cell types yielded the meaningful expression changes. It suggested that the synthesis of kallikrein and prothrombin、the formation of thrombin were enhanced at the priming and progressing phases of liver regeneration. The biological activities, such as fibrin monomer aggregated into fibrin polymers, were elevated at termination phase.Conclusion The rat liver regeneration is closely associated with the blood coagulation.

Objective To retrospectively analyze the clinical characteristics,prognosis and risk factors of novel bunyavirus infection.Methods The clinical data of 68 patients with novel bunyavirus infection confirmed by laboratory diagnosis at Wendeng Central Hospital of Weihai were retrospectively collected.Epidemiological characteristics,clinical manifestations,physical signs and laboratory results were analyzed.Results Twenty two patients (32.4 ％) had intimate contact with ermine (breeding ermine or ermine biting) ; 4 patients (5.9％) had been bitten by tick within 2 weeks,6 patients (7.4％) had intimate contact with patients with severe fever with thrombocytopenia syndrome (SFTS) ; and 25 patients (36.8 ％) had a history of fieldwork before the onset of the disease.Thirty-four patients (50.0 ％) were over 60 years old and 27 cases (39.7％) had underlying diseases.Initial symptoms in all patients were fever accompanied by loss of appetite,fatigue and other toxemic symptoms,followed by multi organ damage.Other clinical manifestations included nervous system damage (27 cases,39.7％),hemorrhage (4 cases,5.9％),rapid atrial fibrillation (10 cases,14.7％) and pneumonia (18 cases,26.5％).White blood cell count of 55 cases (80.9％) was less than or equal to 2.0 × 109/L,platelet count of 18 cases (26.5％) was less than or equal to 30 × 109/L.Abnormal hepatic function was found in 62 cases (91.2％); elevated myocardial enzymes was found in 68 cases (100.0％),prolonged activated partial thromboplastin time in 44 cases (64.7％),hyponatremia in 23 cases (33.8％),hypokalemia in 29 cases (42.6％),hypocalcemia in 36 cases (82.4％),hyperglycemia in 49 cases (72.1％).Serum nucleic acid quantitation of novel bunyavirus varied from 1.10 × 102 to 5.78 × 107 tissue culture infective dose (TCID)/ mL.Fifty five cases were cured,accounting for 80.9 ％,while 13 (19.1％) died eventually.Conclusions High risk factors of novel bunyavirus infection included intimate contact with ermine and infected patients,tick biting and fieldwork.Patients with elder age,underlying diseases,nervous system symptoms,hemorrhage,pneumonia,low platelet,high viral load and elevated myocardial enzymes may have poor progonsis.

Objective To quantify the contents of baicalin, wogonoside, baicalein, wogonin, chrysim and oroxylinA in the Scutellaria baicalensis Georgi with different storage time by liquid chromatography-mass spectrometry( LC-MS) and determine the stability of Scutellaria baicalensis Georgi. Methods The LC system consisted of an Agilent Zorbax XDB-C18 column (2. 1 mm×150 mm,3. 5 μm) with acetonitrile and water (0. 1% formic acid) in linear gradient condition. The flow rate was 0. 2 mL·min-1 and the wavelength of detection was 276 nm. The mass spectrometer was operated under the positive ion mode with the ESI source. The precursor-to-product ion pair was 447/271 for baicalin,461/285 for wogonoside,271/123 for baicalein, 285/270 for wogonin, 255/153 for chrysim and 285/270 for oroxylinA, respectively. Results The contents of baicalin, wogonoside, baicalein, wogonin, chrysim and oroxylin A had a linear relationship with their peak areas within the ranges of 8. 86-177. 2, 2. 33-46. 5, 2. 6-52. 0, 0. 52-10. 4, 0. 04-0. 8 and 0. 04-0. 8 μg · mL-1 , respectively. The contents of baicalin, wogonoside, baicalein, wogonin, chrysim, and oroxylin A were overall decreased over the first 3 months of storage,but remained relatively stable between 0 and 18 months. Conclusion The results provides basis for the establishment of quality standard.

Aim To investigate the vasodilatory effect and the mechanisms of urocortin(Ucn) on the thoracic aorta of spontaneously hypertensive rats(SHR).Methods Rings cut from SHR thoracic aorta were used in vitro.The endothelium dependent and independent vasorelaxing effects of Ucn were measured.Furthermore,it was also explored whether the relaxing effects of Ucn were affected by N~((?)) nitro-L-arginine methyl ester(L-NAME), methylene blue(MB) and glybenclamide.Results Ucn(1 nmol?L~(-1)～1 ?mol?L~(-1)) caused concentration dependent relaxation in SHR thoracic aorta with endothelium and without endothelium(P

Objective To study the 2244G→A, 2299 A→G single nucleotide polymorphism (SNP) in the 5' regulatory regions of Toll-like receptor 4 (TLR4) in patients with Gram negative bacteria infection in Shenzhen locality, and to discuss the occurrence, course and prognosis of patients with sepsis. Method Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to detect the genotype of TLR4. After the whole blood DNA of patient was extracted and PCR was amplified, the products were 500bp and 599 bp, and were cut by endonuclease Mae Ⅱ and Sph Ⅰ respectively to determine the SNP 2244G→A and 2299 A→G in TLR4. These two kinds of allele frequencies were statistically calculated in all patients. In the meantime, the incidence of septic shock, average hospitalized days, cost and prognosis of all patients were recorded. Statistical analysis was performed with SPSS version 16 software. ANOVA was used for comparison among multiple groups, and t -test and Sighed rank test were used for paired comparison. Results The 2299 and 2244 sites in the 5' regulatory regions of TLR4 gene of patients with Gram negative bacteria infection in Shenzhen locality had various degrees of changes in single nucleotide. Compared with the documented data from Chinese people in general, there was a significant difference in 2299A→G genotype frequency in residents of Shenzhen locality ( P < 0.05). But there were no statistically significant difference in mortality, incidence of septic shock, average days of ICU stay or ICU cost between TLR4 SNP positive and negative groups of patients. Conclusions There is a wide range of genetic variation in the 2299 and 2244 sites in the 5' regulatory regions of TLR4 among citizens of Shenzhen locality with unique distribution. The 2299A→G genotype frequency probably has differences in distribution and population. The pathogenesis and the prognostic factors of sepsis are complicated, whereas the gene polymorphism may be just one of the factors affecting the prognosis of patients with Gram negative bacteria infection.

Objective To investigate the efficacy of umbilical cord mesenchymal stem cells (UC-MSCs) transplantation in the treatment of the MRL/lpr mice. Methods Twenty four 18-week-old MRL/lpr female mice were divided into 3 groups:group 1 (G1) were transplanted with 1×106 UC- MSCs through caudal vein, group 2 (G2) were transplanted with 1×106 UC- MSCs three times and group 3 (G3) were treated with 0.5 ml normal saline as controls. Enzyme linked immunosorbent assay (ELISA) was used to measure the levels of serum anti-dsDNA antibodies. Twenty-four hours proteinuria and body weight were assessed every two weeks. The histopathology changes of the kidneys and lungs were observed. Results ① At the 25th weeks, the 24 hours proteinuria in group G1 (2.3±1.9) mg and G2 (1.8±1.4) mg was decreased than that in the control group (3.8±2.1) mg (P<0.05), and at the 27th weeks, that of groups G1 (2.5±1.5) mg and G2 (1.9±1.2) mg was also significantly decreased than in the control group (5.4±2.4) mg (P<0.01); ② From the 24th week, the body weight of groups G1 and G2 increased significantly than that of the control group (P< 0.05). At week 29, serum creatinine decreased significantly in both groups G1 (7.2±3.2) μmol/L and G2 (6.2±2.8) μmol/L than in the control group (12.5±2.3 ) μmol/L (P<0.05); ③One week after transplantation, the levels of anti-dsDNA antibodies in group G1 (46±11)×102 U/ml and G2(49×43)×102 U/ml were bothsignificantly decreased than those of the control groups (99±42)×102 U/ml (P<0.05) and the difference between group G2 (36±15)×102 U/ml and the controls (68±32)×102 U/ml was statistically significant; ④The nephron crescent formation in group G1 (0.12±0.07) and G2 (0.08±0.02) was significantly lower that of the control group (0.20±0.06) (P<0.05) and that of group G2 was significantly less that of froup G1 (P<0.05); ⑤ The interstitial pneumonitis was singnificantly milder in group G1 than group G2. Conclusions UC- MSCs is very effective in treating MRL/lpr mice. It is safe and free of rejection reactions.

Objective To investigate the effects of artesunate (ART) on interstitial pneumonia and sialadenitis in MRL/lpr mice.Methods A total of 18 MRL/lpr mice were randomly allocated to a hydroxychloroquine sulfate (HCQ) group,a ART group and a control group.At the age of 18 weeks,the mice in the HCQ group and ART group were given HCQ 150 mg/kg daily and ART 50 mg/kg daily for 12 weeks,respectively.The histopathological changes of pneumonitis and submaxillaritis were assessed by hematoxylin and eosin staining.The levels of monocyte chemoattractant protein-1 (MCP-1) in the serum and urine were measured by the enzyme-linked immunosorbent assay.Results At the age of 30 weeks,the index of peribronchiolar lesion (1.62 ± 0.19,1.52 ± 0.30 vs.1.95 ± 0.34;all P＜0.05),the index of perivascular lesion (1.23 ± 0.18,1.28 ± 0.12 vs.1.57 ± 0.33;all P＜0.05),the alveolar lesions index (1.35 ± 0.16,1.05 ± 0.15 vs.1.72 ± 0.34;all P＜0.05) and the submaxillaritis index (1.48 ± 0.22,1.43 ± 0.15 vs.1.84 ± 0.34;all P＜0.05) in the HCQ group and the ART group were significantly decreased than those in the control group.The MCP-1 levels in the serum (1 103.02 ± 185.56 pg/ml,1 072.37 ± 242.43 pg/ml vs.1 490.67 ± 329.43 pg/ml;all P＜0.05) and urine (189.16 ± 70.85 pg/ml,198.79 ± 113.47 pg/ml vs.446.79 ± 192.31 pg/ml;all P＜0.05) in the HCQ group and the ART group were significantly lower than those in the control group.Conclusion ART can decrease the MCP-1 level,and ameliorate interstitial pneumonitis and sialadenitis in MRL/lpr mice.

Objective To estimate the prevalence of Glucose‐6‐phosphate dehydrogenase(G6PD) deficiency in Zhongshan area . Methods The activity of G6PD in red blood cells was determined by using ultra‐violet rate method for neonates ,couples of child‐bearing age and suspected patients who had clinical symptoms in Zhongshan area from 2012 to 2013 .Results The total detection rate of G6PD deficiency was 4 .37% (1 030/23 595);in male the detection rate was 9 .42% (513/5 447);in female the detection rate was 2 .85% (517/18 148) .Conclusion The incidence of G6PD deficiency were high in Zhongshan area .Therefore ,more attention should be paid to the screening of the disease in neonates and couples of childbearing age so as to reduce the incidence of G6PD defi‐ciency and prevent the complications caused by the disease .

Objective To investigate the effect of targeted interruption of cyclooxygenase-2 (COX-2) gene by small interference RNA (siRNA) on the expression of COX-2, vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9) in eutopic and ectopic endometrial stromal cells (ESC) with endometriosis, and the effect on the content of 6-keto-prostaglandin-F1α (6-keto-PGF1α, metabolites of COX) and the apoptosis of eutopic and ectopic ESC with endometriosis. Methods Ectopic and eutopic ESC from 30 women with endometriosis were isolated and cultured respectively. Then, ESC were classified into three groups: interference group, negative control group and blank control group. ESC in interference group were injected into siRNA transfection complex while ESC in negative control group were injected into negative control transfection complex. ESC from 10 participants without endometriosis were the normal control group. The mRNA and protein expression of COX-2, VEGF, MMP-9 in pre-transfected and post-transfected eutopic and ectopic ESC were detected through real time reverse transcription PCR and western blot. The content of 6-keto-PGF1α was determined by ELISA, the apoptotic cells were detected by flow cytometry. Results After interruption of COX-2 gene, there were no significant difference in the mRNA and protein expression of COX-2, VEGF and MMP-9 between the negative control group and blank control group (P>0.05); the mRNA and protein expression of the three genes in interference group were significantly lower than those in negative control group and blank control group (P<0.05); the mRNA expression of the three genes in interference group of eutopic ESC were 0.87±0.06, 1.76±0.59, 1.04±0.32, in interference group of ectopic ESC were 0.75±0.12, 1.62±0.47, 0.88±0.25, the protein expression of the three genes in interference group of eutopic ESC were 0.457 ± 0.019, 0.500 ± 0.012, 0.361 ± 0.008, in interference group of ectopic ESC were 0.323 ± 0.018, 0.474 ± 0.016, 0.339 ± 0.009;the mRNA and protein expression of the three genes in ectopic ESC had a more reduction than those in eutopic ESC (P<0.05). The results from ELISA revealed that the content of 6-keto-PGF1α in the normal control group [(17.7 ± 1.9) pg/ml] were significantly lower than those in the blank control group (P<0.05), the content of 6-keto-PGF1α in ectopic ESC were significantly higher than that in eutopic ESC (P<0.05), the content of 6-keto-PGF1α in the blank control group of eutopic and ectopic ESC were (32.4±2.6) pg/ml, (38.2±3.7) pg/ml;there was no significant difference in the content of 6-keto-PGF1α between the negative control group and blank control group (P>0.05);compared with those of negative control group and blank control group, the content of 6-keto-PGF1αin interference group decreased significantly (P<0.05), the content of 6-keto-PGF1α in interference group of eutopic and ectopic ESC were (17.1 ± 2.4) pg/ml, (20.9 ± 2.7) pg/ml; the content of 6-keto-PGF1α in eutopic ESC had a slightly more reduction than that in ectopic ESC (P>0.05). The results from flow cytometry displayed that, there was no significant difference in apoptotic cells between the negative control group and blank control group (P>0.05);compared with those of negative control group and blank control group, more apoptotic cells were detected in interference group and the difference was significant (P<0.01);the apoptotic cells in ectopic ESC were significantly more than that in eutopic ESC (P<0.05); the apoptosis rate in interference group of eutopic and ectopic ESC were (33.76 ± 0.06)%, (47.18 ± 0.12)%. Conclusions Our results suggested the targeted interruption of COX-2 gene by siRNA effectively inhibited the mRNA and protein expression of COX-2, VEGF and MMP-9 in both eutopic ESC and ectopic ESC with endometriosis, greatly increased the apoptotic rate of cells and obviously reduced the content of 6-keto-PGF1αby inhibiting the activity of COX-2. And the changes in ectopic endometrium were more evident than those in eutopic endometrium.