Objective To investigate the effect of interventional treatment in coronary heart disease (CHD) in elderly patients with brain natriuretic peptide and high-sensitivity C-reactive protein (hsCRP) levels.Methods 130 elderly patients undergoing coronary angiography interventional treatment were selected for the observation group,30 cases with normal coronary arteries angiography were chosen as the control group.In 46 cases of acute myocardial infarction(AMI) group,34 cases of unstable angina pectoris(UAP) group and 50 patients with stable angina pectoris (SAP) group and 30 cases coronary angiography normal control group(NOR),the hs-CRP and plasma brain natriuretic peptide(BNP) differences were determined and compared.Results CHD (AMI group,UAP group and SAP group) in patients with BNP levels were (548.6 ± 200.4) mg/L,(521.0 ± 198.7) mg/L and (175.8 ± 119.4) mg/L,which were significantly higher (59.3 ± 45.7) mg/L in the control group,hsCRP levels only in patients with acute myocardial infarction and unstable angina was significantly increased,the difference was statistically significant (t =13.74,10.65,all P ＜ 0.05).3d after PCI and three months prior CHD hsCRP increased to (45.8 ± 15.3)ng/L,and then decreased to (8.6 ± 4.4) ng/L,significantly different (t =10.76,14.54,all P ＜ 0.05) ; while BNP levels have been falling,first down (247.4 ± 70.1)mg/L,3 months after the falls (69.8 ± 20.0)mg/L,the difference was significant(t =11.47,19.64,all P＜0.05).Conclusion The levels of brain natriuretic peptide,hsCRP are reflections of coronary stenting in patients with coronary heart disease early postoperative inflammatory reaction and evaluate a sensitive indicator of disease,which may play an role in stent restenosis occurs.

Objective To investigate the clinical value of tumor necrosis factor-alpha ( TNF-) and hypersen-sitivity-C reactive protein ( hs-CRP ) in elderly patients with chronic heart failure ( CHF ) .Methods 85 elderly patients with CHF were randomly selected as the CHF group ,and 85 healthy pepole were chosen as the healthy control group .All subjects were taken fasting blood in the morning ,the TNF-αand hs-CRP levels were detected and compared between the two groups .The differences of plasma TNF-αand hs-CRP levels in different grades of CHF patients were also observed .Results The TNF-αand hs-CRP levels of the CHF group were significantly higher than those of the healthy control group(t=110.86,25.63,all P<0.05).With the elevation of heart function classification ,the TNF-αand hs-CRP levels gradually increased ,and compared with the previous grade ,the differences were statistically signifi-cant(F=7.65,16.75,all P<0.05).The results of linear correlation analysis showed that the levels of TNF-αand hs-CRP were negatively correlated with the LVEF (r1 =0.78,P<0.05;r2=0.71,P<0.05).The TNF-αand hs-CRP were positively correlated (r =0.83,P <0.05).Conclusion The plasma TNF-αand hs-CRP levels of elderly patients with CHF are increased ,and their levels are closely related with the heart function .

Objective To investigate the effects of dexmedetomidine on global cerebral ischemia-reperfusion (I/R) injury in rats.Methods Fifty-four adult male SD rats weighing 200-250 g were randomly divided into 3 groups (n =18 each): shame operation group (group S),global cerebral I/R group (group I/R) and dexmedetomidine group (group D).Global cerebral I/R was produced by occlusion of bilateral common carotid arteries combined with hypotension (MAP maintained at 35-45 mm Hg).In group D dexmedetomidine 3 μg/kg was injected iv immediately after I/R,followed by infusion of dexmedetomidine at a rate of 3 μg· kg- 1 · h- 1 until 2 h of reperfusion.The neurological deficit score (NDS) was assessed (0 =normal,100 =brain death) at 6 h (T1),24 h (T2)and 72 h (T3) of reperfusion.Then six rats were sacrificed in each group and brain tissues were removed for microscopic examination of hippocampus CA1 region and determination of activity of myeloperoxidase (MPO),contents of TNF-α and IL-1β and expression of glial fibrillary acidic protein ( GFAP).Results Compared with group S,NDS,MPO activity and the contents of TNF-α and IL-1β at T1-3 were significantly increased,the expression of GFAP was up-regulated at T2,3 in groups I/R and D ( P ＜ 0.05 or 0.01).Compared with group I/R,NDS,MPO activity and TNF-α concent were significantly decreased at T1-3,IL-1β concent was decreased at T1,2,the expression of GFAP was down-regulated at T2,3 in group D (P ＜ 0.05 or 0.01 ).The pathologic changes were significantly attenuated in group D as compared with group I/R.Conclusion Dexmedetomidine can attenuate global cerebral I/R injury in rats,and the inhibition of inflammatory response may be involved in the mechanism.

Objective To evaluate the effects of dexmedetomidine on the oxidative stress responses during global cerebral ischemia-reperfusion (I/R) in rats.Methods Thirty-six male Sprague-Dawley rats,weighing 250-300 g,were randomly divided into 3 groups (n =12 each) using a random number table:sham operation group (group S),global cerebral I/R group (group I/R) and dexmedetomidine group (group D).Global cerebral ischemia was induced by occlusion of bilateral common carotid arteries combined with hypotension (MAP maintained at 35-45 mmHg).In group D,dexmedetomidine was infused at a rate of 3 μg · kg-1 · h-1until 2 h of reperfusion after a loading dose of dexmedetomidine 3 μg/kg was intravenously injected immediately after onset of reperfusion.The neurological deficit score (NDS) was assessed at 24 h of reperfusion,the rats were then sacrificed,and their brains were immediately removed for determination of cell apoptosis and levels of malondialdehyde (MDA),superoxide dismutase (SOD) and catalase (CAT).Apoptotic rate was calculated.Results Compared with group S,NDS,apoptotic rate and MDA level were significantly increased,and SOD and CAT levels were decreased in I/R and D groups.Compared with group I/R,NDS,apoptotic rate and MDA level were significantly decreased,and SOD and CAT levels were increased in group D.Conclusion Dexmedetomidine attenuates global cerebral I/R injury through inhibiting the oxidative stress responses.

Aim To investigate the immunoregulative action of polysacchrides of Spirulina platensis ( PSP ) on peripheral blood mononuclear cells ( PBMCs) in pa-tients with chronic hepatitis B virus infection. Meth-ods Proliferation and cycle of PBMCs from patients with chronic hepatitis B virus infection were measured by MTT colorimetry and flow cytometry respectively. The concentration of IFN-γ, IL-2 , IL-4 in supernatants of PBMCs were examined by ELISA. The mRNA ex-pression of IFN-γin PBMCs from patients with chronic hepatitis B virus infection was detected by RT-PCR. Results PSP could induce proliferation of PBMCs in patients with chronic hepatitis B virus infection. In ad-dition, PSP could increase the protein expression of IFN-γ and IL-2 in supernatants of PBMCs in patients with chronic hepatitis B virus infection, and PSP could also enhance the mRNA expression of IFN-γof PBMCs in patients with chronic hepatitis B virus infection. However, PSP inhibited the protein expression of IL-4 of PBMCs in patients with chronic hepatitis B virus in-fection. Conclusion PSP can promote the immune function and plays an important immunoregulation function on patients with chronic hepatitis B virus in-fection.

Objective To investigate the neurological and cerebrospinal fluid interleukin-6 effects of butylphthalide on brain hemorrhage.Methods Ninety cerebral hemorrhage patients in principle based on a random draw were equally divided into the treatment group (45 cases) and the control group (45 cases).Two groups were given basic treatment, the control group were treated with nimodipine tablets adjuvant therapy, the treatment group were treated with butylphthalide soft capsules adjuvant therapy, all patients were treated for 30 days.Results After treatment, the national institutes of health stroke scale (NIHSS) score was shown significant downward trend in the two groups((9.45±0.44) to (2.09±0.45) scores;(9.44±0.21) to (4.58±0.65) scores) and compared with pre-treatment differences were significant (t=16.983, P=0.000;t =8.112, P =0.000), and the NIHHS score in treatment group was significantly lower than in control group(P =0.000).The mini-mental state examination (MMSE) score and activities of daily living (ADL) scores were shown significant upward trend in the two groups,compared with pre-treatment differences were significant(P ＜0.05).MMSE score(26.98±3.91) and ADL scores(34.29±6.42) scores in the treatment group were significantly lower in the control group((23.09±5.33) scores, (30.28±5.33)scores) after treatment(t =6.498, P =0.000;t =8.123, P =0.000).After treatment, the values cerebrospinal fluid interleukin-6 (IL-6) expression in the two groups were significantly reduced (P ＜ 0.05), while the value of cerebrospinal fluid IL-6 expression in the treatment group were significantly lower than the control group ((45.38 ± 13.02) ng/L vs (122.87± 17.42) ng/L, t =18.334, P =0.000).The adverse reactions of the two groups were mild, and were significantly improved after symptomatic treatment.Conclusion Butylphthalide adjuvant treatment of cerebral hemorrhage can improve nerve function, cognitive function and activities of daily living, its safety is also better.It plays its role may related to effectively reduce the IL-6 expression.

Objective To explore the influence of various concentrations of amino acid on the stability of neonatal parenteral nutrition solutions .Methods Five formulations were designed with 5 different amino acid concentrations containing the same components .The final amino acid concentrations of admixtures were 0%, 1%, 2%, 3%, and 3.5%, respectively .The appearance , pH, and osmolality were observed or meas-ured after preparation (0 hour) and at 12, 24, 48 and 72 hours after preparation.The average size and the size distribution of the lipid globules were also evaluated by laser nanometer particle size analyzer .Results There was no observable alteration in color , phase separation , precipitate , and flocculation in any admixture at any of the observation time points.The mean pH values for all groups were between (5.49 ±0.01) to (6.19 ±0.01) within 72 hours.The mean osmolalities for all groups were between (774 ±3) to (1106 ±13) mOsm/kg.The mean diameters of lipid globules for all groups were between (280.6 ±0.7 ) mm to (332.2 ±2.0 ) nm.The mean polydispersity for all groups were between (0.200 ±0.011) to (0.245 ±0.012).The enrichment of ami-no acid concentration was linked to lower pH ( P=0.000 ) , higher osmolality ( P=0.000 ) and larger average lipid globules size ( P=0.000 ) .However , there was no distinct linear dependence between amino acid concen -tration and polydispersity value ( P=0.628 ) .Conclusion After 72 hours of storage at room temperature , the appearance, pH, osmolality, and the average lipid globules diameter of the parenteral nutrition solutions are within the safe range when the amino acid is not contained or the concentrations are no more than 3.5%.

Objective To investigate the the efficacy and safety of recombinant human brain natriuretic peptide (rhBNP) in the treatment of acute non-ST-segment elevation myocardial infarction patients with heart failure.Methods 80 patients with heart failure caused by acute non-ST-segment elevation myocardial infarction were chosen,they were divided into the observation group and control group based on a random number table,each group included 40 patients.The observation group were treated with intravenous injection of recombinant human brain natriuretic peptide,the control group were treated with intravenous nitroglycerin.vital signs,dyspnea,brain natriuretic peptide (BNP),associated hemodynamic changes and adverse reactions of two groups were compared before and after treatment.Results The total effective rate in observation group was 87.5％ (35/40),which were significantly higher than 50.0％ (20/40) of the control group,there were significant difference (x2 =13.09,P ＜ 0.05).In the observation group,after treatment,the left ventricular ejection fraction (LVEF) and average hourly urine output were significantly higher than those of before treatment (t =26.40,3.22,all P ＜ 0.05),and the brain natriuretic peptide (BNP) concentration levels were significantly lower than those of before treatment (t =14.11,all P ＜ 0.05).The control group before and after treatment LVEF,BNP and changes in urine levels were not significantly.Conclusion In the treatment of heart failure caused by acute non-ST-segment elevation myocardial infarction,the recombinant human brain natriuretic peptide (rhBNP) has significant effect,feasible and safe with few side effects,which has a high clinical value.

In order to investigate the inhibitory effects of Endostar (rh-endostatin, YH-16) in combination with radiotherapy on lung adenocarcinoma A549 in mice and the interaction mechanisms of combined therapy, the transplantation tumor models of A549 lung adenocarcinoma were established. When the largest diameter of tumor reached 1.0 cm, all nude mice were randomly divided into 4 groups: Endostar group, radiotherapy group, radiotherapy plus Endostar (combined treatment) group, and control group (n=6 in each group). The largest diameter and the vertical diameter of tumor were measured at different time points. At the 16th day, mice were executed, and the tumors were applied to analysis of rate of tumor cell apoptosis, and the expression levels of basic fibroblast growth factor (bFGF) mRNA were detected by reverse transcription-polymerase chain reaction (RT-PCR) and those of vascular endothelial growth factor (VEGF) by immunohistochemistry. The results demonstrated that the rate of tumor inhibition in combined treatment group was higher than that in other groups. And the rate of tumor cell apoptosis in combined treatment group was also higher than that in other groups. Meanwhile, the levels of bFGF mRNA and VEGF expression in combined treatment group were lower than those in other groups. It was concluded that Endostar obviously enhanced the curative effectiveness of radiotherapy on lung adenocarcinoma A549 in mice. The underlying mechanisms may involve the down-regulation of bFGF mRNA and VEGF expression to inhibit angiogenesis by Endostar and the cooperative effect of Endostar and radiotherapy to synergistically promote tumor cell apoptosis. And Endostar inhibits angiogenesis by down-regulating the expression of bFGF mRNA and VEGF.

Objective To evaluate the effects of dexmedetomidine on the permeability of blood-brain barrier in rats subjected to global cerebral ischemia-reperfusion (I/R).Methods Thirty-six male Sprague-Dawley rats,weighing 250-300 g,were randomly divided into 3 groups (n =12 each):sham operation group (group S),global cerebral I/R group (group I/R) and dexmedetomidine group (group D).Global cerebral I/R was induced by occlusion of bilateral common carotid arteries combined with hypotension (MAP was maintained at 35-45 mm Hg) in anesthetized rats.In group D,dexmedetomidine was infused at a rate of 3μg· kg-1 · h-1 until 2 h of reperfusion after a loading dose of dexmedetomidine 3 μg/kg was injected intravenously immediately after onset of I/R.The rats were sacrificed at 24 h of reperfusion and their brains were immediately removed for microscopic examination of hippocampal CA1 region and for determination of the cell apoptosis,brain water content,Evans blue content and aquaporin 4 (AQP4) expression.Results The number of apoptotic cells was significantly larger,and brain water content,Evans blue content and AQP4 expression were higher in groups I/R and D than in group S (P ＜ 0.05 or 0.01).The number of apoptotic cells was significantly smaller,and brain water content,and Evans blue content and AQP4 expression were lower in group D than in group I/R (P ＜ 0.05 or 0.01).Global cerebral I/R-induced pathological changes were significantly attenuated in group D.Conclusion Dexmedetomidine can decrease the permeability of blood-brain barrier and attenuate global cerebral I/R injury in rats,and down-regulation of AQP4 expression may be involved in the mechanism.