1.Prevention and treatment of infections in cardiac transplant recipients
Tongbing ZHAO ; Pu WANG ; Zhenzhong GUAN
Chinese Journal of Organ Transplantation 1997;18(4):214-215
The regularity and the preventive and curative measures about the post-operative infections in 3 orthotopic cardiac transplant recipients were reviewed.The results showed that the bacterial infections and the opportunistic fungal infections were common within 1~2 months after the cardiac transplantation.The sensitive antibiotics could completely control the infections.More than 3 months after surgery,the infections were gradually reduced.It was suggested that the prevention and treatment of the post-operative infections should be reinforced in the early stage of transplantation.
2.Effect of fluvastatin on left ventricular remodeling and caspase-3 expression after myocardial infarction in rats
Lan MA ; Zhenzhong GUAN ; Wei WU
Chinese Journal of Pathophysiology 1986;0(03):-
AIM: To observe the effect of fluvastatin (FV) on left ventricular remodeling and expression of caspase-3 after myocardial infarction (MI) in rats. METHODS: Rats were divided into 4 groups: group Ⅰ (sham), group Ⅱ (sham+FV), group Ⅲ (MI) and group Ⅳ (MI+FV). group Ⅱ and Ⅳ were treated with FV (10 mg?kg -1?d -1) for 4 weeks. The left ventricular structure, echocardiography and hydroxyproline were observed. The expression of caspase-3 was measured by immunohistochemistry and RT-PCR. RESULTS: Compared with MI group, there was a improvement of ultrastructure and index of left ventricular remodeling, and decrease in hydroxyproline in MI+FV group (all P
3.Study of the correlation between NRAMP1 gene polymorphisms and susceptibility to tuberculosis in Tibetan people in Qinghai
Xiying FENG ; Wenwen LI ; Zhenzhong BAI ; Wei GUAN ; Tai JIU ; Mao HUA ; Famao DU ; Jinxia CUI ; Yuhong LI ; Zhoucuomao LA ; Wenjing AN ; Hongqian LIU ; Weixiu MA
Chinese Journal of Microbiology and Immunology 2016;36(7):494-499
Objective To investigate the correlation between NRAMP1 gene polymorphisms and susceptibility to tuberculosis ( TB) in Tibetan people in Qinghai. Methods A case-control study was con-ducted in this study, involving 99 Tibetan patients with TB and 89 healthy Tibetans. The single nucleotide polymorphisms of NRAMP1 gene at rs17235409 and rs3731865 sites were detected by using TaqMan probe method. Gene cloning and sequencing typing were performed to analyze the single nucleotide polymorphisms of NRAMP1 gene at the rs17235416 site. SPASS20. 0 software was used to statistically analyze the correla-tion between NRAMP1 gene polymorphisms and susceptibility to TB in Tibetan people. Results No signifi-cant difference in the genotype frequencies of rs3731865 and rs17235409 was found between the two groups (χ2=0. 852, P=0. 356;χ2=0. 279, P=0. 597). The genotype frequencies of TGTG/TGTG and TGTG/del+del/del at the rs17235416 site were 70. 7% ( 70/99 ) and 29. 3% ( 29/99 ) in patients with TB and 86. 5% (77/89) and 13. 5% (12/89) in healthy subjects. There were significant differences in the geno-type frequencies of TGTG/TGTG and TGTG/del+del/del between the two groups (χ2=6. 870, P=0. 009). The genotypes of TGTG/del and del/del at rs17235416 were risk factors for TB ( OR=0. 376; 95%CI:0. 178-1. 794 as compared with the TGTG/TGTG genotype in Tibetan people in Qinghai. Conclusion This study suggested that the NRAMP1 gene polymorphisms at rs3731865 and rs1723409 sites had no correlation with the susceptibility to TB in Tibetans in Qinghai. However, the NRAMP1 gene polymorphisms at rs17235416 site were correlated with the susceptibility to TB. The TGTG/del alleles at the rs17235416 site might be the risk factors for tuberculosis in Tibetans in Qinghai.
4.Application and Prospect of Automatic Control Technology in Extraction of Chinese Medicine
Zhenzhong ZANG ; Ming YANG ; Yongmei GUAN ; Zhengfeng WU ; Jianlin ZHANG ; Yuan LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2018;20(11):1943-1949
In our country, the technology of extraction and separation of traditional Chinese medicine is backward relatively. The production process is extensive and the equipment level is low relatively. The manufacturing process is mainly based on unit operation and manual operation. The automatic control of the whole process has not been realized, which has seriously restricted the modernization of traditional Chinese medicine industry. If automatic control technology applied to traditional Chinese medicine in the extraction process, the process parameters of operation will be in the effective and strict monitoring and control, so as to improve the product quality and production efficiency, reduce costs, to achieve the green production. In this paper, the current situation and the application of new automation technology in the process of extraction traditional Chinese medicine in recent years were summarized, in order to provide a reference for Chinese medicine green and intelligent production.
5.Study on extraction technology of Sophora flavescens-Phellodendron chinense drug pair
Yongmei GUAN ; Ying TAO ; Chengyu ZOU ; Zhenzhong ZANG ; Lihua CHEN ; Lili LIU ; Limei CHEN ; Weifeng ZHU
China Pharmacy 2024;35(7):793-800
OBJECTIVE To study the extraction technology of Sophora flavescens-Phellodendron chinense drug pair and provide a reference for the development of new drugs for the treatment of anorectal diseases. METHODS Using the contents of total alkaloids of S. flavescens (matrine+oxymatrine), berberine hydrochloride and total flavonoid, and extract yield as evaluation indicators, analytic hierarchy process-entropy weight method was used to calculate the weight coefficient of each indicator, and was combined with Box-Behnken design-response surface method to study the extraction technology of S. flavescens-P. chinense drug pair and verify it. RESULTS The optimal extraction technology of S. flavescens-P. chinense drug pair was immersed in 12-fold amount of 58% ethanol for 30 minutes and extracted twice, each time for 120 minutes. The relative error between the verification experimental results and the predicted value was 1.88%. CONCLUSIONS The obtained extraction technology is stable and feasible and can provide reference for the application of S. flavescens-P. chinense drug pair and development of new drugs.
6.Effect of volatile oil of Ligusticum chuanxiong on transdermal properties and cytotoxicity of triptolide in vitro
Cheng JIANG ; Zhenzhong ZANG ; Lihua CHEN ; Haiting ZHU ; Shihua FU ; Weifeng ZHU ; Wenting WU ; Wei SHI ; Yongmei GUAN
China Pharmacy 2024;35(4):413-418
OBJECTIVE To explore the effect of volatile oil of Ligusticum chuanxiong on the transdermal properties and cytotoxicity of triptolide in vitro. METHODS The chemical constituents of the volatile oil of L. chuanxiong were analyzed by gas chromatography-mass spectrometry. The lower abdominal skin of KM mice was separated and divided into triptolide group, triptolide in compatibility with volatile oil of L. chuanxiong groups at 1∶10, 1∶50, 1∶100 (hereinafter referred to as “compatibility 1∶10”“compatibility 1∶50”“compatibility 1∶100” groups). After the skin of mice in each group was fully exposed to 0.2 g of the corresponding cream for 24 h, the cumulative transdermal dose (Qn) of triptolide in the receiving solution of each group was determined by high-performance liquid chromatography, and the transdermal absorption rate (Jss) was calculated. Human immortalized keratinocytes (HaCat) were used as a model, the CCK-8 method was used to detect the cell survival rate of different concentrations of the volatile oil of L. chuanxiong and triptolide before and after compatibility. RESULTS A total of 62 chemical constituents of the volatile oil of L. chuanxiong were identified, including Z-ligustilide, senkyunolide, and β-selinene. The Qn (P< 0.01) and Jss of triptolide increased within 24 h in the compatibility 1∶10 and 1∶50 groups, while the Qn (P<0.05) and Jss decreased in the compatibility 1∶100 group as compared with the triptolide group. Compared with the triptolide group, the cell survival rate of HaCat was significantly increased in the compatibility 1∶10 and 1∶50 groups when the triptolide concentrations were 36, 72 and 144 ng/mL (P<0.05 or P<0.01); while the cell survival rate of HaCat was decreased in the compatibility 1∶100 group, but the difference was not statistically significant (P>0.05). CONCLUSIONS When the compatibility ratio of triptolide and volatile oil of L. chuanxiong was 1∶10 or 1∶50, it can promote the transdermal absorption of triptolide and reduce the cytotoxicity of triptolide to HaCat.