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Objective:To optimize the compatibility conditions of erigeron injection and study the stability after compatibility. Methods:An orthogonal test was employed using the quantity of insoluble particles and the content of rutin as the indices and tempera-ture, solvent and solvent amount as the influencing factors. The results were comprehensively analyzed. According to the results of the orthogonal test, three batches of samples were prepared and observed the stability in 24 hours, including the changes in the number of insoluble particles, pH and total flavonoid content. Results:The optimal compatibility conditions were as follows:the temperature was 25℃, and 250 ml 0. 9% sodium chloride injection was used as the solvent. The appearance and the insoluble particles showed no sig-nificant changes in 24 hours. The total flavonoid content was also stable in 4 hours, but decreased to some extent after then. Conclu-sion:At the clinical dose, erigeron injection in 250 ml 0. 9% sodium chloride injection can keep stable in 4 hours.
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Objective To investigate the role of surfactant protein (SP)-A and SP-D in urinary tract infection mouse model,and evaluate the effects of SP-A and SP-D absence on urinary tract infection.Methods SP-A and SP-D double knockout (SP-A/D KO) mice were made.SP-A/D KO and wild-type (WT) C57BL/6 female mice were used for this study.The expression of SP-A and SP-D in kidney was detected by immunohistochemistry (IHC).The levels of p-p38 and p38 protein in kidneys were measured by Western blotting.Uropathogenic Escherichia coli or buffer was delivered into the bladder of female mice.At 24 and 48 h after inoculation,CFU of Escherichia coli in the kidney and urine of the treated and control mice were measured.Histological,cellular and molecular analysis were performed by several methods of H/E staining,IHC and Western blotting.The effects of SP-A and SP-D on bacterial growth were studied in vitro.Results SP-A and SP-D in kidney were located in the proximal tubules and collecting tubules.Compared with WT mice,infected SP-A/D KO mice with UPEC had higher CFU in kidneys and urine at 24 h and 48 h,increased inflammatory cells infiltration in kidneys (P＜0.05).Compared with WT mice,SP-A/D KO mice had higher p38 MAPK phosphorylation levels in kidneys (P ＜ 0.05).Growth of Escherichia coli was greatly inhibited by both SP-A and SP-D (P＜0.05).Conclusions Both SP-A and SP-D are expressed in kidney.SP-A and SP-D can attenuate UTI induced by UPEC which may be through inhibiting bacterial growth and modulating renal inflammation.
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Purpose To explore the ultrasonic characteristics of idiopathic retroperitoneal fibrosis (IRPF) and assess the diagnostic value of ultrasound. Materials and Methods Ultrasonic images of 11 cases of IRPF were retrospectively analyzed.Results The hypoechogenic masses encasing the abdominal aorta were detected in all cases, among which the encasement of inferior vena cava was found in 4 cases, the involvement of iliac artery in 3 cases and hydronephrosis in 9 cases.Conclusion IRPF demonstrated ultrasonic characteristics that would facilitate its detection and diagnosis.
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Objective To observe the biological activities of human doppel (Dpl) protein transiently expressed and Dpl-like protein PrPΔ32-121 on a human neuroblastoma cell line SH-SY5Y. Methods Recombinant mammalian expression plasmids containing human PRND gene and truncated PrPΔ32-121 fragment were generated by PCR. The expression and location of Dpl and PrPΔ32-121 post-transfection were observed by IFA. The cytotoxicity was measured by MTT analysis. Cellular apoptosis was investigated by flow cytometry and Western blot. Results Both Dpl and PrPΔ32-121 protein were expressed and mainly located on the cell membrane. Remarkable cytotoxicity was detected on SH-SY5Y cells after 24 h transfection. Meanwhile, more Annexin V/PI positively-stained cells as well as lower levels of cellular pro-caspase-3 and Bel-2 were detected in the cells receiving Dpl and PrPΔ32-121 expressing plasmids. Conclusion Dpl protein transiently expressed and PrPΔ32-121 can lead to the similar neural cytotoxicity, probably triggering the cell apoptosis program.
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Objective To characterize the expression of surfactant protein A (SP-A) in normal and acute pyelonephritic rat kidneys and to study the correlation of infection and inflammation with SP-A expression. Methods Twenty-one rats were randomly assigned into three groups: control, sham operation and pyelonephritic group. HE staining was used to determine tubulointerstitial inflammation. Reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blotting were used to determine the mRNA expression and protein level of SP-A. Immunohistochemical staining was used to label the localization and intensity of SP-A expression in kidney tissue. The correlation between intensity of SP-A expression and interstitial inflammation was also evaluated. Results In pyelonephritic group, tubulointerstitial inflammation was more prominent than that in control and sham groups (54.3?11.5,6.4?1.4, 8.6?1.9,respectively). RT-PCR and Western blotting revealed that SP-A expression was up-regulated in pyelonephritic group (in mRNA level: 2.2+0.58, 0.9?0.25, 1.1? 0.30; in protein level: 0.45?0.09, 0.24?0.05, 0.26?0.05, respectively). Immunohistochemical staining demonstrated that SP-A expression was mainly localized on epithelial cells in outer medullary and collecting tubules in normal group and sham group, but strong staining extended to collecting tubules in pyelonephritic group. The tubulointerstitial inflammation score was positively correlated with the intensity of SP-A expression (r=0.67,P
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OBJECTIVE:To study the optimum conditions for extracting the effective components in Yansheng oral liquidMETHODS:Using orthogonal design L9(34),the content of total solid was taken as the screening indexInfluence of the concentration of alcohol on effective components was observedRESULTS:The number of times of extraction(D) had significant influence on the content of total solid(P
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Objective To observe the biological activities of human doppel(Dpl) protein transiently expressed and Dpl-like protein PrP?32-121 on a human neuroblastoma cell line SH-SY5Y.Methods Recombinant mammalian expression plasmids containing human PRND gene and truncated PrP?32-121 fragment were generated by PCR.The expression and location of Dpl and PrP?32-121 post-transfection were observed by IFA.The cytotoxicity was measured by MTT analysis.Cellular apoptosis was investigated by flow cytometry and Western blot.Results Both Dpl and PrP?32-121 protein were expressed and mainly located on the cell membrane.Remarkable cytotoxicity was detected on SH-SY5Y cells after 24 h transfection.Meanwhile,more Annexin V/PI positively-stained cells as well as lower levels of cellular pro-caspase-3 and Bel-2 were detected in the cells receiving Dpl and PrP?32-121 expressing plasmids.Conclusion Dpl protein transiently expressed and PrP?32-121 can lead to the similar neural cytotoxicity,probably triggering the cell apoptosis program.