1.Coxsackievirus A 16 and Enterovirus type 71 infections among 0~14 age groups in Hefei
Jian SONG ; Pengfei DU ; Bangning CHENG
Acta Universitatis Medicinalis Anhui 2014;(7):1013-1015
Enzyme-linked immunosorbent assay ( ELISA) was applied to detect the antibody against CoxA16 and EV71 among 0~14 age groups. In 1 000 cases of children, the total positive rate of anti-EV71 IgM was 19. 9%, the total positive rate of anti-EV71 IgG was 47. 7%, the total positive rate of anti-CoxA16 IgM was 22. 8%, the to-tal positive rate of anti-CoxA16 IgG was 51. 3%. There was a negative correlation between positivity for EV71 IgM and positivity for CoxA16 IgM(χ2 =2. 794,P>0. 05). There was also a negative correlation between positivity for EV71 IgG and positivity for CoxA16 IgG(χ2 =2. 793,P>0. 05). The positive rate of IgG antibody against CoxA16 and EV71 was higher in neonatal group in which anti-EV71 IgG was 41 . 5% and anti-CoxA16 IgG was 49 . 5%. The lowest positive rate of IgG antibody against CoxA16 and EV71 was in infant group in which anti-EV71 IgG was 38. 0% and anti-CoxA16 IgG was 43. 5%. Except for neonatal group,the positive rate of IgG antibody against Cox-A16 and EV71 increased gradually with the age growth, there were statistical differences among the age groups (χ2=27. 04 and 19. 98,P<0. 01). With the age growth,the positive rate of IgM antibody against EV71 and CoxA16 increased,there were statistical differences among the age groups(χ2 =41. 12 and 37. 13,P<0. 01). There were not statistical differences between gender groups (χ2 =0. 51,1. 77,0. 36 and 2. 12,P>0. 05).
4.Studies on bioactive constituents in bark of Tsoongiodendron odorum
Xiaokai SONG ; Lijun WU ; Pengfei TU ;
Chinese Traditional and Herbal Drugs 1994;0(08):-
Object To study the chemical constituent and the bioactivity in the bark of Tsoongiodendron odorum Chun Methods By bioactive following method, the extracts of both EtOAc and n BuOH in the bark of T odorum were screened for in vitro anti tumor activity Results Five constituents were obtained Among them, three from EtOAc fraction belonged to germacranolides They were costunolide (Ⅰ), parthenolide (Ⅱ) and dihydroparthenolide (Ⅲ) The other two were from the fraction of n BuOH, one was an oxoaporphinoid alkaloid, liriodenine (Ⅳ), and the last was a furanone, 2, 3 dihydroxyl 2 methyl butylrolactone (Ⅴ) Conclusion All the above five compounds are found for the first time from this plant Compounds Ⅰ, Ⅱ, Ⅳ, and Ⅴ show the cytotoxic activities against a variety of tumor cell strains, respectively
6.Research progress of kinesin II family member 3A
Yi LIU ; Zhiming CUI ; Jinlong ZHANG ; Pengfei XUE ; Song WANG
Chinese Journal of Tissue Engineering Research 2016;20(37):5617-5624
BACKGROUND:Kinesin II family member 3A (KIF3A), as an important member of the kinesin-2 family, not only holds some general characters of kinesin including the regulation of intracel ular transport and mediation of microtubule movement, but also possesses its own specific features.
OBJECTIVE:To review the research progress of the function of KIF3A recently.
METHODS:A computer-based online research for relative literatures published from January 1996 to July 2016 was performed in PubMed and CJFD databases using the English retrieval words of“KIF3A;kinesin;molecular motor”and Chinese keywords of“kinesin;microtubule;function;molecular motor;spinal cord injury”, respectively. A total of 92 articles were retrieved, and 62 eligible articles were included according to the inclusion criteria.
RESULTS AND CONCLUSION:KIF3A is involved in new bone formation regulation, in the control of nephron number, cell survival and gene expression, in sperm formation and in the inhibition of prostate cancer and glioblastoma process:In the meanwhile, whether KIF3A is involved in spinal nerve injuries is discussed. All provide valuable new information and new ideas for further in-depth study on the KIF3A.
7.Establishment and Evaluation of a Rat Model of Adriamycin-Induced Myocardial Injury
Dan SU ; Pengfei LIU ; Liu ZHANG ; Bogen SONG ; Guifen ZHAO
Acta Laboratorium Animalis Scientia Sinica 2009;17(6):442-444,illust 2
Objective To establish and evaluate a rat model of adriamycin-induced myocardial injury.Methods Tweenty-four male SD rats were randomly divided into two groups. The adriamycin (ADR) group (n=15) was injected intraperitoneally with six equal doses of ADR (2 mg/kg each time, with a cumulative dose of 12 mg/kg) over a period of two weeks, while the control group (n=9) received an equivalent volume of normal saline intraperitoneally alone. The Rats were observed for 5 weeks after treatment. The general conditions and mortality were recorded. At the end of experiment, the parameters of hemodynamics including LVSP, LVEDP, ±LVdP/dtmax and HR were measured. The pathological changes were analyzed by histological hematoxylin-eosin staining. Glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activity as well as malondialdehyde (MDA) content in heart tissue were measured according to the kit instructions, respectively. Results The cumulative mortality in the ADR group was 40%. Compared with the control group, LVEDP and -LVdP/dtmax were significantly increased in the ADR group (P<0.001, P<0.05). The results of pathological examnation of the ADR group were consistent with characteristic changes of myocardial injury. Myocardial malondialdehyde (MDA) content was significantly increased and glutathione peroxidase (GSH-Px) activity decreased in the ADR group compared with those in the controls.Conclusion A rat model of adriamycin-induced myocardial injury has been successfully established by administration of ADR (cumulative dose, 12 mg/kg) to rats in six equal intraperitoneal injections over a period of 2 weeks, resulting in cardiac dysfunction and histological damages.
8.Establishment and application of HPLC-QAMS for quality evaluation of Chuanxiong Rhizoma.
Fengxian QIAO ; Hao CAI ; Pengfei TU ; Ke PEI ; Xiaoqing SONG
Acta Pharmaceutica Sinica 2015;50(6):749-54
A quantitative analysis method of multi-components with a single marker (QAMS) for simultaneous determination of six marker compounds (one from phenolic acids and five from phthalides) in Chuanxiong Rhizoma was established by applying HPLC and using butylidenephthalide as the internal reference substance. And also the feasibility and accuracy of the established method for quality evaluation and application of Chuanxiong Rhizoma were investigated and validated. The analysis was performed with the mobile phase consisting of acetonitrile - 0.2% aqueous formic acid. The flow rate was 1.0 mL . min-1 and the column temperature was maintained at 30 °C. The detection wavelengths were set at 252 nm (for ferulic acid, Z-ligustilide, and butylidenephthalide) and 266 nm (for senkyunolide I, senkyunolide A, and coniferyl ferulate), separately, and 20 µL was injected for analysis with gradient elution. The results showed that there were no significant differences observed between the HPLC-QAMS method and the external standard method (RSD <5%). The relative correction factors were credible (RSD < 5%) in changed chromatographic conditions. The established HPLC-QAMS method can be accurately used for simultaneously evaluating and controlling the quality of Chuanxiong Rhizoma with multi-components.
9.Clinical observation on 308-nm monochromatic excimer light for the treatment of amelanotic nevus
Huijun MA ; Lianjin SONG ; Yang YANG ; Rong HU ; Mingyue ZHANG ; Pengfei GAO ; Jingyi WANG
Chinese Journal of Dermatology 2013;46(10):751-752
Objective To evaluate the efficacy and safety of 308-nm monochromatic excimer light for the treatment of amelanotic nevus.Methods Eighteen patients with amelanotic nevus were treated with 308-nm monochromatic excimer light twice a week for five consecutive weeks.Melanin content index (MCI) was measured in the lesions before and after the treatment.After the final exposure,a three-month follow-up was carried out.Results After the start of treatment,the MCI in lesions increased in a session-dependent manner and approximated to 100% of that in perilesional normal skin after six sessions of treatment.The follow-up revealed a decrease trend in MCI after the end of the treatment,which was nearly equal to that in perilesional normal skin one month later,and dropped to about 90% of that three months later.No side effects such as blisters or scar were observed during the treatment.Conclusions The 308-nm monochromatic excimer light is safe and effective for the treatment of amelanotic nevus.Re-exposure to 308-nm monochromatic excimer light after three months is recommended as consolidation therapy.
10.Influence on Main Symptoms of Qing-Fei Pei-Yuan Wei-Wan for 141 Pulmonary Infection HIV/AIDS Cases with the Syndrome of Phlegm-heat Obstructing the Lung
Xiuxia MA ; Liran XU ; Zhipan ZHENG ; Pengfei MENG ; Dongxu WANG ; Yinyin TANG ; Xiyuan SONG
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(5):1141-1146
This study was aimed to observe influence on clinical symptoms of Qing-Fei Pei-Yuan Wei-Wan (QFPY-WW) for pulmonary infection HIV/AIDS cases with the syndrome of phlegm-heat obstructing the lung. A total of 141 pulmonary infection HIV/AIDS cases with the syndrome of phlegm-heat obstructing the lung were randomly divided into the treatment group (94 cases) and the control group (47 cases). The treatment group was given basic western medication combined with QFPYWW. The control group was given basic western medication. After 4 weeks treat-ment, observation was made on changes of main symptoms. The results showed that on the 28th day, compared with the control group, there was improvement on symptoms such as cough, breathing and chest tightness (P< 0.05). Com-parison on coughing up phlegm degree showed that the treatment group was significantly better than the control group (P< 0.05). On the 7th day treatment, the treatment group had better effect on lowering body temperature than the control group (P< 0.05). It was concluded that QFPYWW can improve symptoms such as cough, breathing, chest tightness and cough up phlegm among pulmonary infection HIV/AIDS patients.