RESUMEN
Objective :To study influence of amlodipine combined valsartan on autonomic nervous function and serum level of Rho‐associated protein kinase 1 (ROCK1) in hypertensive patients with renal injury .Methods :A total of 94 hypertensive patients with renal injury treated in our hospital were selected ,randomly and equally divided into amlo‐dipine group and combined treatment group (received amlodipine combined valsartan ) ,both groups were treated for one month .Serum ROCK1 level and autonomic nervous function indexes before and after treatment ,therapeutic effect and incidence of adverse reactions were analyzed and compared between two groups .Results :After treat‐ment ,total effective rate of combined treatment group was significantly higher than that of amlodipine group (95. 74% vs.82.97%,P＝0. 045).Compared with before treatment ,after treatment ,there were significant reduc‐tions in serum ROCK1 level [amlodipine group : (3. 25 ± 0.32 ) ng／ml vs.(1.24 ± 0. 45 ) ng／ml ,combined treat‐ment group :(3. 34 ± 0. 35) ng／ml vs.(0.22 ± 0.15 ) ng／ml] ,24hSBP standard deviation (24hSSD) ,24h DBP SD (24hDSD) ,daytime SBP SD (dSSD) ,nighttime SBP SD (nSSD) and nDSD in two groups ( P＝0.001 all) ,and a‐bove indexes of combined treatment group were significantly lower than those of amlodipine group , P＜ 0. 01 all. Compared with amlodipine group after treatment ,there were significant reductions in incidence rates of lower limb edema (27. 66% vs.10.63%) ,nausea and vomiting (27. 66% vs.8.51%) and dizziness and weakness (23. 40% vs. 8.51%) in combined treatment group ,P＜0. 05 all.Conclusion :Amlodipine combined valsartan possesses significant therapeutic effect on hypertensive patients with renal injury .It can significantly reduce serum ROCK1 level and im‐prove autonomic nervous function and prognosis in these patients .
RESUMEN
Objective:To produce rhBMP-4 with bioactivity in E.coli. Methods: The full-length human BMP-4 gene was mutated by PCR without changes in amino acid sequence, then the synthesized gene was cloned into plasmid pET-3c, transducted into BL21(DE)plysS, and induced by adding IPTG to a final concentration of 1.0 mmol/L. The protein product was purified using ion-exchange chromatography method and then renaturated, bioactivity was checked by C2C12 differentiation in vitro and mouse ectopic bone formation in vivo. Results: A 438 bp gene fragment encoding mature peptide of hBMP-4 was cloned , the protein product was mostly in the form of inclusion body, after renaturation, the engineering protein shows better bioactivity. Conclusion:The mutant strategy can enhance the expression of bioactive rhBMP-4 in E.coli expression system.