1.Studies on Dynamics of Two Endophytic Bacterial Strains Inside Ginseng and Soil of Root Region
Min LIU ; Chenyun HU ; Wanlong DING ; Yong LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(4):790-795
This article was aimed to study the dynamics of biocontrol endobacteria in roots, stems and leaves of Panax ginseng and soils adjacent roots. Gradient screening and root irrigation methods were used to develop Rif-resistance bacteria and inoculation. Dilution plate method was used to count the number of them in roots, stems and leaves of P. ginseng and soils adjacent roots. The results showed that bacteria which can endure 120 μg·mL-1 Rif was developed, and no change was found on their antagonistic activity against A lternaria panax Whetz and Phytophthora cactorum. In roots and stems of P. ginseng, ge15 and ge25 showed the highest number in the initial.Then, populations of ge15 and ge25 in ginseng roots and stems decreased to a stable status gradually. In ginseng leaves, populations of ge15 and ge25 increased to the highest 3 days after inoculation, then, populations of them were decreased and kept at certain concentration. In ginseng rhizosphere soil, populations of ge15 showed reciprocating change, and which of ge25 showed increase initial, and then decrease to a stable status. It was concluded that endobacteria can keep a certain population in ginseng roots, stems, and leaves. Biocontrol agents based on them will be helpful for ginseng diseases controlling in the field.
2.Qualitative research in factors affecting the compliance of patients with chronic hepatitis B
Licui YANG ; Yumei SUN ; Huichun XING ; Chenyun LIU
Chinese Journal of Practical Nursing 2008;24(19):17-20
Objective To explore the factors influencing the patients' treatment compliance infected with chronic hepatitis B virus, and provide some useful advices to improve patients compliance. Methods Data were collected through deep interviews with 9 patients and analyzed using a phenomenological hermeneutic method. Results Using generic analysis, the factors influencing patients' compliance fell in-to three themes: (1) The enforceability of the doctor's advice; (2)The factors of the patients their own, in-cluding the disease-related knowledge, the realization of how harmful the disease is, and past behavior habits; (3)The social factors, including economic situation, pressure of life, family care, and the supervision and guidance of health care workers. Conclusions In order to make the patients consciously adopt the doctor's advice, health workers should pay more attention to strengthen the enforceability of the doctor's ad-vice and health education, and focus on the impact of cognitive, psychological and social factors on pa-tients' compliance.
3.Effects of Autotoxins Stress on Root Exudates of Panax Ginseng
Yong LI ; Chenyun HU ; Wanlong DING ; Min LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(7):1499-1504
By nutrient solution culture method, effects of benzoic acid, diisobutyl phthalate, diisobutyl succinate, palmitic acid, 2,2-bis(4-hydroxyphenyl) propane on root exudates of Panax ginseng were studied. GC-MS results in-dicated that, 15 to 23 components were detected in treatments including control, which were organic acids, alcohol, amino acid esters, phenols, amines, condensed nucleus, saccharine, etc. Through compared with control we found that, phenol and phenolic acids in root exudates increased in most of stress treatments. So we deduced that, the re-laxation of autotoxins from roots to outside environment was stimulated by autotoxins released into soil, and which ac-celerated the autotoxicity to ginseng seedlings.
4.Qualitative study on nurses′ psychological experience after adverse nursing event of falling down
Xiaofang ZHAO ; Zhaoxia LIN ; Xiaomin LIU ; Huichun XING ; Chenyun LIU ; Xuanjie WANG ; Hong CHENG
Chinese Journal of Modern Nursing 2017;23(7):989-992
Objective To comprehend nurses′ psychological experience after adverse nursing events of falling down,and to explore strategies and Methods that may help them handling these events.Methods With purposive sampling method,in-depth interview was conducted to 6 clinical nurses from Beijing Ditan Hospital, who had experienced nursing adverse events of falling down from October 2014 to October 2015, with the interview data collected and analyzed.Results Four themes were identified:nurses were distressed when facing with uncontrollable nursing adverse events of falling down;nursing adverse events of falling down could increase nurses′ psychological stress and reaction;nursing adverse events of falling down seriously affected the quality of nurses′ life and their professional career;nurses wanted to get attention and help after experiencing nursing adverse events of falling down.Conclusions After experiencing adverse nursing events,psychological stress may influence the nurses′ work,life and professional value,which requires nursing administrators to provide effective support and intervention.
5.Characteristics of Motoneurons Controlling Single Finger Movement in Different Individuals
Huiying WAN ; Xiangyu LIU ; Chenyun DAI ; Wei CHEN
Journal of Medical Biomechanics 2023;38(2):E382-E388
Objective To analyze characteristics of motoneurons controlling the extension of a single finger in different individuals, and obtain the similarity and difference of micro-motoneurons characteristics in different individuals. Methods The motoneurons were decomposed by blind source separation algorithm. The two dimensional (2D) features of the neurons were quantified, and the fingers were classified by the features of the neurons decomposed by different individuals. In addition, the proportion of shared motor neurons was used to study characteristics of motoneurons innervating the coordinated movement of different fingers between individuals. Results There were significant differences in spatial distribution of motoneurons between the index finger and the middle finger for different individuals, but the activation area was similar. Using data from different people as training sets and testing sets, the average accuracy of finger classification was 86. 99% , and it was significantly improved to 90. 07% after using transfer component analysis (TCA) calibration. Through analysis on the proportion of shared neurons in different individuals, it was found that the proportion of shared neurons between index finger and other three fingers (middle finger, ring finger and little finger) was relatively low, while that between ring finger and little finger was high. Conclusions The spatial discharge characteristics of motoneurons controlling different fingers in different individuals are similar and have small individual differences. This study reveals the internal neural mechanism of different individuals during finger movement, and provides references for clinical neural mechanism analysis of patients with finger movement disorders and the related engineering applications
6.Chinese medicine Jianpi Antai formula improves pregnancy outcomes of in vitro fertilization-embryo transfer in infertile women
Qing LIU ; Fangxuan LIN ; Chenyun MIAO ; Chao LI ; Guofen WEN ; Songying ZHANG ; Qin ZHANG
Journal of Zhejiang University. Medical sciences 2024;53(3):306-312
Objective:To evaluate the efficacy and safety of Chinese medicine Jianpi Antai formula in infertile women undergoing in vitro fertilization-embryo transfer(IVF-ET).Methods:A total of 300 infertile women who underwent 2 frozen embryo transfer procedures at the Reproductive Medicine Center,Sir Run Run Shaw Hospital were included in the study.The participants were randomly divided into study group and control group.The study group received routine medication plus the Jianpi Antai formula during the period of embryo transfer,while the control group received routine medication only.The general condition,embryo implantation rate,clinical pregnancy rate,live birth rate,and the blood routine and liver and kidney function were evaluated and compared between two groups.Results:There were 277 cases who completed the study,including 134 in the study group and 143 in the control group.The embryo implantation rate(68.7%vs.55.9%),the clinical pregnancy rate(56.7%vs.44.8%)and the live birth rate(50.7%vs.37.8%)in the study group were all higher than those in the control group(all P<0.05).Subgroup analysis revealed that in patients of advanced age(≥35 years)and those with decreased ovarian reserve function(anti-Müllerian hormone<1.68 ng/mL),the embryo implantation rate,clinical pregnancy rate,and live birth rate in the study group were all higher than those in the control group(all P<0.05).During the follow-up period,there were no abnormalities in the basic vital signs of both groups,and no adverse events were reported.Conclusion:Jianpi Antai formula can safely improve the embryo implantation rate in infertile women undergoing IVF-ET,reduce the embryo miscarriage rate,increase the live birth rate as well as improve the clinical outcomes.
7.He's Yangchao recipe improves premature ovarian insufficiency by regulating mitochondrial biogenesis of granulose cells via ERβ/PGC1α/TFAM pathway
Chenyun MIAO ; Ying ZHAO ; Yun CHEN ; Ruye WANG ; Ning REN ; Qing LIU ; Xiaobing DOU ; Qin ZHANG
Journal of Zhejiang University. Medical sciences 2024;53(3):358-367
Objective:To investigate the effect of Chinese medicine He's Yangchao recipe on premature ovarian insufficiency(POI)and its relationship with mitochondrial function of ovarian granulose cells in an animal model.Methods:Thirty-six female C57BL/6J mice were randomly divided into blank control group,model group,low-,medium-and high-dose He's Yangchao recipe treatment group and coenzyme Q10(Q10)treatment group(positive control).The POI model was induced by a single intraperitoneal injection of cyclophosphamide(90 mg/kg).The animals were sacrificed after 21 days.Primary granulose cells were obtained from POI mice and treated with He's Yangchao recipe,ERβ inhibitor PHTPP,and He's Yangchao recipe+PHTPP in vitro for 24 h,respectively.Ovarian histopathological changes were observed by hematoxylin-eosin(HE)staining,ATP levels were detected by luciferase assay,mtDNA copy numbers were detected by quantitative reverse transcriptase-polymerase chain reaction(qRT-PCR),mitochondrial structure changes were observed by transmission electron microscopy,protein and mRNA expression levels of estrogen receptor β(ERβ),peroxisome proliferator-activated receptor γ coactivator 1α(PGC1α),mitochondrial transcription factor A(TFAM),and superoxide dismutase 2(SOD2)were detected by Western blotting and qRT-PCR.Results:The ovarian tissue in model group exhibited few secondary and tertiary follicles,whereas the He's Yangchao recipe groups and Q10 group had abundant secondary and tertiary follicles.Compared with the blank control group,ATP and mtDNA levels in model group decreased(P<0.01),mitochondrial crista disappeared or abnormal vacuolated structure increased;the protein and mRNA levels of ERβ,PGC1α,TFAM,and SOD2 decreased(all P<0.01).ATP production increased in granulose cells of high-dose He's Yangchao recipe group and Q10 group;mtDNA copy numbers increased(P<0.05 or P<0.01);abnormal mitochondrial structure was reduced;the protein and mRNA expressions of ERβ,PGC1α,TFAM,and SOD2 increased(P<0.05 or P<0.01).Compared with the PHTPP intervention group,the proportion of normal mitochondrial structure in the granulose cells of He's Yangchao recipe+PHTPP group was higher;ATP content increased(P<0.05 or P<0.01);mtDNA copy numbers increased(P<0.05 or P<0.01);the protein and mRNA expression of ERβ,PGC1α,TFAM and SOD2 increased(P<0.05 or P<0.01).Conclusions:He's Yangchao recipe can regulate mitochondrial biogenesis through ERβ/PGC1α/TFAM pathway to improve ovarian function in POI mice.