1.Study on Improvement of Quality Standard for Sophora Flos Carbonisatus in Chinese Pharmacopoeia (2015)
Yanqi LI ; Raorao LI ; Junling CAO ; Jialin JING ; Wei HAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;17(3):620-626
In order to ef fectively control the quality ofSophora lfos carbonisatus (flower and flower buds), this study established quality control methods and standard of the decoction pieces. Referring to the related methods in appendix of Chinese Pharmacopoeia (2010 Edition), the moisture, total ash, acid insoluble ash, alcohol extracts ofSophora lfos carbonisatus were measured, respectively, with rutin, quercetin as control substance. The eluents for rutin and quercetin are ethyl acetate - formic acid - water (8: 1:1) and chloroform - methanol - water (6.5:1:1), respectively and all TLC plates were observed at 365 nm. Total flavonoids are measured by visible - UV - spectrophotometric, and rutin and quercetin were determined by HPLC. The chromatographic conditions for rutin are: Kromasil C18 as the stationary phase, methanol -1% acetic acid (32:68) as mobile phase, flow rate: 0.8 mL·min-1, detection wavelength 257 nm,the column temperature 35℃; for quercetin: Kromasil C18 as the stationary phase, methanol -0.4% acetic acid (44:56) as the mobile phase, flow rate: 0.8 mL·min-1, detection wavelength 257 nm, the column temperature 40℃.The contents of moisture, total ash, acid insoluble ash, should not exceed 6%, 16%, 8.0% in flower and not exceed 6.0%,9.0%, 1.5% in buds, respectively. Under the conditions of TLC, in flower and flower buds, 2 reference substances can be separated well with others. Extract, total flavonoids, rutin, quercetin were no lower than 40.0%, 5.0%, 2.5%,0. 2% in flower and no lower than 45.0%, 10.0%, 5.0%, 0.9% in buds, respectively. The established standards can improve the levels of quality control, provide experimental data for safety and efficacy of clinical application of Sophora flos carbonisatus, and also offer supporting data for the Chinese Pharmacopoeia 2015 Edition.
2.Analysis on acupuncture-related adverse events published in periodicals in Science Citation Index (Sci) and Medllars Online (Medline)
Wenju HE ; Qiang XI ; Xue ZHAO ; Yanqi LI ; Yi GUO
International Journal of Traditional Chinese Medicine 2011;33(11):1014-1016
ObjectiveTo analyze literature on acupuncture-related adverse events published in periodicals in Science Citation Index (SCI) and Medllars Online(Medline).MethodsWe searched the Web of Science database and the Medline database to identify articles about the safety of acupuncture therapy.Case reports,case series,surveys and other observational studies were included if they reported factual data,but review articles,translations and clinical trials were excluded.ResultsFindings:The inclusion criteria were met by 232 articles that in total reported on 389 cases of adverse events after acupuncture.Conclusion Acupuncture therapy is relatively safe,most acupuncture-related adverse events can be avoided by standardized clinical practice.Establishment of acupuncture medical safety standard system is extremely urgent.
3.Fatal asthma attack induced by amiodarone in the elderly:two cases report and literature reviews
Li WEN ; Xing HAN ; Jinhua QUAN ; Yanqi CHEN
Chinese Journal of Geriatrics 2016;35(12):1317-1319
Objective To investigate the mechanisms and clinical characteristics of fatal asthma attack induced by amiodarone in the elderly,and to discuss its serious potent risks.Methods We reported two cases of fatal asthma attack in the elderly with fast atrial fibrillation induced by amiodarone,and discussed the clinical manifestation and emergency treatment,with literatures review.Results The two patients presented with respiratory arrest.After targeted therapies,including artificial ventilation and hormone injection,the patients were capable of spontaneously breathing,while still in severe asthma attack.And further anti-asthma treatment led to a complete remission.Conclusions Amiodarone may cause extremely severe asthma attack in elder patients with tachyarrhythmia complicated with bronchial hyper-responsiveness diseases such as asthma or chronic obstructive pulmonary diseases.Clinicians should pay great attention to this situation and be prepared to cope with serious adverse reactions.
4.Anti-apoptotic Effects of Cornus Officinals Iridoid Glycoside on Cellular Model of Alzheimer Disease Induced by Protein Phosphatase Inhibitor Okadaic Acid
Yanqi CHU ; Lan ZHANG ; Wen WANG ; Wei LI ; Li ZHANG ; Lin LI
China Pharmacy 2005;0(18):-
OBJECTIVE:To investigate the effects and the mechanisms of cornel iridoid glycoside(CIG)on antiapoptosis in cellular model of alzheimer disease(AD)induced by the protein phosphatase inhibitor okadaic acid(OA).METHODS:The human neuroblastoma cell line SK-N-SH cells were preincubated with CIG for 24 h,and then incubated with OA 10 nmol for 6 h.The changes of apoptotic cells were observed by TUNEL method.Western blotting was used to determine the expression of apoptosis-regulating factors Bcl-2,Bcl-2 related X protein(Bax)and Caspase-3.RESULTS:The normal SK-N-SH cells spread well and no apoptotic cells appeared.In OA-treated model group,the number of apoptotic cells increased significantly,the expressions of Bax and Caspase-3 increased significantly,but Bcl-2 expression decreased significantly.In CIG(100 and 200 ?g?mL-1)-treated group,the number of apoptotic cells decreased significantly as compared with OA-treated model group,and the expressions of Bax and Caspase-3 decreased significantly whereas Bcl-2 expression increased significantly.CONCLUSION:CIG can inhibit the apoptosis of nerve cells through affecting apoptosis-regulating factors,suggesting its potential as a therapy for AD.
5.Effects of ginsenoside on cellular model of Alzheimer disease induced by protein phosphatase inhibitor okadaic acid
Yanqi CHU ; Lan ZHANG ; Wei LI ; Li ZHANG ; Cuifei YE ; Lin LI
Chinese Pharmacological Bulletin 2003;0(07):-
Aim To investigate the effects of ginsenoside(GS) on phosphorylation of tau protein,microtubule,cellular apoptosis and its related factors in cellular model of Alzheimer disease(AD) induced by the protein phosphatase 1 and 2A inhibitor okadaic acid(OA).Methods The human neuroblastoma cell line SK-N-SH cells were cultured with GS for 24 h,the culture medium was changed,and then incubated with OA 10 nmol?L-1 for 6 h.The changes of cell morphology were observed by inverted microscope.The laser confocal microscopy was used to observe the microtubule changes.Western blot was applied to determine the expression of phosphorylation of tau protein,and apoptosis-regulating factors Bcl-2,Bax and Caspase-3.The changes of apoptotic cells were observed by TUNEL method.Results The normal SK-N-SH cells spread well.OA-treated cells showed that the cell axons and the microtubules were broken and decreased under the inverted microscope and laser confocal microscope.Preincubation of GS demonstrated the significantly protective effects against the morphologic damage induced by OA.In OA-treated group,the phosphorylation of tau protein at Ser-199/202 and Ser-404 sites was higher than that in normal group,and the non-phosphorylation of tau protein at the same sites was lower;Incubation of GS at the dose of 50 mg?L-1 and 100 mg?L-1 with the cells decreased the phosphorylation of tau protein Ser-199/202 and Ser-404 sites.GS group at the dose of 50 mg?L-1 and 100 mg?L-1 decreased the expression of at non-phosphorylation of tau protein at the Ser202 site.The apoptotic cells were not found in normal group.The number of apoptotic cells were obviously increased.the expression of Bax and caspase-3 significantly enhanced,and Bcl-2 expression decreased in the OA-treated model group.GS significantly decreased the apoptotic cell number of nerve cells,inhibited the expression of Bax and caspase-3.Conclusion GS can protect the nerve cells from pathological change induced by OA.Maybe because it can inhibit the hyperphosphorylation of tau protein and protect the nerve cells from apoptosis,thus GS may have potential to treat Alzheimer disease.
6.The Way for Inpatient Pharmacy Staff to Provide Pharmaceutical Care for Clinical Needs
Hailian WANG ; Jianhua ZHANG ; Yinhui XU ; Jie LI ; Yanqi CHU ; Xiaodan LI ; Sen LI
China Pharmacy 2001;0(07):-
OBJECTIVE: To study the how's for pharmacists at inpatient pharmacy to provide pharmaceutical care for improved safe and effective use of drugs. METHODS: Pharmacists at inpatient pharmacy can provide pharmaceutical care as per specific clinical needs, and start from such details as preparing the booklet of commonly-used chemotherapy drugs, offering face-to-face advises on drug use for diabetics, and helping nurses to manage the medicine cabinets. RESULTS & CONCLUSION: Pharmacists at inpatient pharmacy should provide the right pharmaceutical care that can meet actual clinical needs.
7.Functional brain magnetic resonance imaging in healthy people receiving acupuncture at Waiguan versus Waiguan plus Yanglingquan points: a randomized controlled trial.
Yong HUANG ; Tianle LI ; Xinsheng LAI ; Yanqi ZOU ; Junxian WU ; Chunzhi TANG ; Junjun YANG
Journal of Integrative Medicine 2009;7(6):527-31
To observe the cerebral activating effects of needling at Waiguan (SJ5) versus SJ5 plus Yanglingquan (GB34) points in young healthy volunteers based on the hypothesis of "needling effect of combined acupuncture points relates to the brain activation".
8.The research progress of senescence-associated secretory phenotype
Huining GUO ; Shuang LING ; Jun LIU ; Yufeng LI ; Shurong WANG ; Yanqi DANG ; Xiaomiao CHEN ; Jinwen XU
Chinese Pharmacological Bulletin 2016;32(11):1505-1509
When senescence induction is based on DNA damage, senescent cells display a unique phenotype, which has been termed “senescence-associated secretory phenotype”( SASP ) . SASP, including proinflammatory cytokines, growth factors, chemokines, matrix remodeling enzymes and other cytokines, may be an important driver of chronic inflammation and therefore may be part of a vicious cycle of inflammation, DNA damage and senescence. Senescence-associated secretory products released by such cells can affect the neighboring cells and further exacer-bate their regenerative capacity. SASP is associated with many chronic age-related diseases.
9.The correlation between position and efficacy of traditional Chinese medicine
Yiwei GENG ; Huzhan ZHENG ; Rong YANG ; Min LIU ; Yanqi LI ; Lina WANG
International Journal of Traditional Chinese Medicine 2014;(9):839-841
We found that medicine property and efficacy are closely linked with the shape and nature of the position of Chinese material medical through Collecting and analyzing the related articles, such as Root-based Chinese material medical has downside effect, Skin-based Chinese material medical has skin curative efficacy, Rattan-based Chinese material medical can live blood links contact us, Seed-based Chinese material medical can be used to multiply for life and so on. At last, the paper can provide a reference for the theoretical study of Chinese herbal medicine and the discovery of new drug source.
10.Establishment of an aging model of mesenchymal stem cells
Yang LIU ; Xiaobing WU ; Yongguang JING ; Yanqi LI ; Hongyi WANG ; Xiao XU ; Chutse WU ; Jide JIN
Military Medical Sciences 2015;(5):329-333
Objective To establish an aging model of mesenchymal stem cells (MSCs) and to investigate aging related biological mechanism for the purpose of studying the senesence of MSCs .Methods MSCs were separated and purified from human placenta, and the cells of the third passage(P3-MSCs) were cultured in the medium for 2 hours, then 100,200 and 300 μmol/L hydrogen peroxide ( H2 O2 ) was added to the cells for 2 hours to establish the MSCs aging model in vitro. Biological characteristics of aging MSCs were evaluated by cell cycle assay and senescence associated β-galactosidase staining.The expression of p16,p21 and p53 genes was further measured using quantitative real-time PCR (RT-PCR).Re-sults Compared with the control , the number of MSCs treated with 200μmol/L H2 O2 for 2 hours was significantly decreased and the cells displayed less adipogenic ,osteogenic and chondrogenic differentiation .Moreover ,after exposure to 200 μmol/L H2 O2 , the majority of the cells were in the G 0/G1 phase as showed by cell cycle analysis .The percentage of senescence-associated β-galactosidase-positive cells was increased , and the expression of p 16 , p21 and p53 mRNA and protein was significantly increased.Conclusion The results of this study has demonstrated that the H 2 O2 (200 μmol/L) can be used to establish the aging model of MSCs in vitro, and the cellular phenotypic alteration may attribute to the cell cycle associated gene expression (p16, p21, and p53).