1.Comparison of Main Chemical Components in Prescription Granules and Decoction of Fructus Aurantii Immaturus
Zhenli LIU ; Zhiqian SONG ; Ling ZHANG ; Linfu LI
China Pharmacy 1991;0(06):-
OBJECTIVE: To compare the contents of main chemical components in prescription granules and decoction of Fructus aurantii immaturus. METHODS: 3 batches of cut crude drugs of Fructus aurantii immaturus were selected to prepare the granules and decoction. The assaying of water soluble extractive was conducted according to the specification of China Pharmacopeia. The assaying of hesperidin and synephrine was conducted by HPLC. RESULTS: There was no obvious difference between water soluble extractive of granules and that of decoction, while the contents of hesperidin and synephrine were higher in the prescription granules than in the decoction. CONCLUSIONS: The results provide supporting basis for the labeled amount of prescription granule of Fructus aurantii immaturus.
2.Drug Quality Characterization Consideration of Preparations of Oil Tea Camellia Defatted Cake based on Antithrombotic Effect
Yali WANG ; Lifeng SHEN ; Linfu LI ; Qiuhong WU ; Dongbo LU ; Wenxia LI ; Renbing SHI
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(3):516-521
This study was aimed to select the best preparation form of medicinal in camellia cake,based on the optimal antithrombotic agents in oil tea camellia defatted cake to establish the foundation of research.The content of effective index component of the oil tea camellia defatted cake preparation was detected by HPLC-PDA.The quality of medicinal preparation from oil tea camellia defatted cake was characterized based on the content,relative quantity,relative ratio of content,yield rate and antithrombotic effect.The results showed that the effect of antithrombotic of three medicinal preparations from oil tea camellia defatted cake was listed in the following descending order of enrichment,ethanol extract,and water extract.The enrichment was the best preparation form of medicinal in oil tea camellia defatted cake preparation with the highest content of effective index components,the lowest extract rate and the lowest dosage.But it had the best effect of antithrombotic.It was concluded that the significant improvement of efficacy was due to the increase of the content of the components in the preparation and the rationality of the proportion.At the same time,analysis of component quality based on basic composition of drug system through the consideration of effective components of type and quantity,composition and other quality factors can further guide the preparation of drugs.
3.Intervention with flexible bronchoscopy in patiens with respiratory failure caused by tracheal stenosis
Jiwang WANG ; Wangjian ZHA ; Xu QI ; Meimei LI ; Linfu ZHOU ; Mao HUANG
Chinese Journal of Emergency Medicine 2013;22(5):521-525
Objective To investigate the efficiency and safety of intervention with flexible bronchoscope under general anesthesia by using laryngeal mask in patients with severe tracheal stenosis induced respiratory failure.Methods A total of 16 in-patients with respiratory failure caused by severe tracheal stenosis admitted from September 2009 to March 2012 were retrospectively reviewed.A comprehensive bronchoscopic intervention for the complete patency of airway was successfully performed with various techniques such as cryotherapy,electrocautery,balloon dilatation,and implantation of selfexpanding metal stents under genersl anesthesia by using laryngeal mask.The efficiency of comprehensive bronchoscopic intervention and dyspnea score were evaluated by chest CT scan and bronchoscopic examination before and after the treatment.Data were expressed as ((x-)± s).Paired t test was used for statistical analysis of the data.Results The degrees of tracheal stenosis and dyspnea score before and after intervention were (85.0±8.4)% vs.(20.9±7.6)% (P<0.01) and (3.9±0.3vs.2.4±0.5,P< 0.01),respectively.There were no life-threatening complications occurred including massive haemorrhage.Conclusions It is an effective and safe technique to resolve the tracheal stenosis-induced respiratory failure with intervention by using flexible bronchoscope under general anesthesia with laryngeal mask,and it is a promising interventional treatment for clinic application.
4.Review on the secondary metabolites from Xestospongia sponges and their bioactivities.
Linfu LIANG ; Haili LIU ; Yufen LI ; Wenquan MA ; Yuewei GUO ; Wenfei HE
Acta Pharmaceutica Sinica 2014;49(9):1218-37
The genus Xestospongia is one of the most widespread genera of sponges, containing abundant secondary metatolites with novel structures and potent bioactivities. The main structure types of secondary metatolites found in this genus are alkaloids, quinines, terpens, steroids, lipids, polyketones, etc. These metatolites exhibit a variety of bioactivities, such as cytotoxic, antibacterial and antiviral activities. This paper reviews the progress in the chemistry and pharmacological activities of the second metabolities from sponges of Xestospongia, especially for recent five years, with the aim for further research.
5.A prospective control study of Saccharomyces boulardii in prevention of antibiotic-associated diarrhea in the older inpatients
Dongmei ZHANG ; Binbin XU ; Li YU ; Linfu ZHENG ; Longping CHEN ; Wen WANG
Chinese Journal of Internal Medicine 2017;56(6):398-401
Objective To study the value of Saccharomyces boulardii for the prevention of antibiotic-associated diarrhea in older inpatients.Methods A total of 163 older patients who were treated with wide-spectrum antibiotics at least three days during January 2014 to December 2015 were randomly divided into control and study group.In study group, 81 patients were administrated with oral Saccharomyces boulardii 500 mg twice a day for 21 days.The control group was of no intervention.Morbidity rate of antibiotic-associated diarrhea and Clostridium difficile-associated diarrhea, frequency and duration of diarrhea were recorded.Results The incidence of antibiotic-associated diarrhea in study group was significantly lower than that in control group [14.8%(12/81) vs 28.0%(23/82), P<0.05],whereas no difference was seen in the incidence of Clostridium difficile-associated diarrhea [3.7%(3/81) vs 4.9%(4/82), P>0.05] in two groups.The frequency and duration of diarrhea in the study group were significantly lower and shorter than those in control group[(4.3±1.7) times/day vs (6.9±2.0) times/day;(3.0±1.1) days vs (5.7±1.8) days, both P<0.01].Conclusion Saccharomyces boulardii may reduce the incidence of antibiotic-associated diarrhea therefore improving the symptom of diarrhea in older inpatients.
6.Effect of Acanthopanax giraldii Harms Var. Hispidus Hoo polysaccharides on the human gastric cancer cell line SGC-7901 and its possible mechanism.
Xiaoying LU ; Miancheng SU ; You LI ; Linfu ZENG ; Xinghua LIU ; Jianming LI ; Baochun ZHENG ; Shuangyin WANG
Chinese Medical Journal 2002;115(5):716-721
OBJECTIVETo study the inhibitory effect of Acanthopanax giraldii Harms Var. Hispidus Hoo polysaccharides (AGP) on SGC-7901 gastric cancer cells and its possible mechanism.
METHODSCell doubling time analysis, colony forming assay and MTT assay were adopted to study the inhibitory effect and its characteristics. We also analyzed the amount of protein expressed by oncogenes, antioncogenes and cell factors using flow cytometric analysis.
RESULTSAGP inhibited the proliferation of SGC-7901 cells and cell colony forming ability. AGP did not inhibit the viability and function of lymphocytes of peripheral blood in healthy subjects and human embryonic tenocytes, except for the highest dosage of AGP (P < 0.05), which slightly inhibited the viability and function of the two types of normal cells. AGP inhibited the viability and function of SGC-7901 cells, except for the lowest dosages of AGP I and AGP III. There was a dose-effect relationship between the dosage of the AGP and SGC-7901 cells. The effect of the AGP at the molecular level was associated with the low protein expression of the c-myc and bcl-2 genes and the high protein expression of the p53, bax, fas and fas-L genes, as well as the cell factor TGF beta(1). The inhibitory effect of AGP was weaker than that of CDDP, but was stronger than that of Vitamin C.
CONCLUSIONSAcanthopanax giraldii Harms Var. Hispidus Hoo polysaccharides selectively inhibited the proliferation, the colony forming ability, and the viability and function of human gastric cancer cells through the low protein expression of c-myc, bcl-2 and the high protein expression of p53, fas, fas-L and the cell factor TGF beta(1). The different inhibitory characteristics on the normal cells and cancer cells are possibly caused by gene and the cell factor expressions.
Cell Division ; drug effects ; Dose-Response Relationship, Drug ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Neoplastic Stem Cells ; drug effects ; Polysaccharides ; pharmacology ; Stomach Neoplasms ; drug therapy ; pathology ; Tumor Cells, Cultured ; drug effects
7.Characteristic chemical profile of Juhe Fang extract with lipid-lowering properties
Kong JING ; Liu LULU ; Gao YUANYUAN ; Chen SIYU ; Li LINFU ; Shu YISONG ; Sun DAOHAN ; Jiang YANYAN ; Shi RENBING
Journal of Traditional Chinese Medical Sciences 2020;7(3):233-244
Objective: The objective of this study was to verify the lipid-lowering effect of Juhe Fang extract (JHFE) and to determine its characteristic chemical profile in vitro and in vivo. Methods: A hyperlipidemia model was established by feeding mice a high-fat diet (HFD). After treatment for 30 days, serum total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels were measured with an automatic biochemistry analyzer. The components from JHFE obtained from in vivo and in vitro experiments were investigated using an UPLC-Q Exactive-Orbitrap MS/MS. Results: The TC, TG, and LDL-C in the serum significantly decreased and the HDL-C significantly increased after JHFE treatment. A total of 95 compounds from JHEF including 15 phenolic acids (PA), 4 phenyl-ethanoid glycosides (PG), 24 flavonoids (F), 14 triterpenoids (T), 10 diterpenoid glycosides (D), 18 alka-loids (A) and 10 others (O) were identified. Trigonelline was discovered for the first time in a herbal medicine of Juhe Fang. Furthermore, 68 compounds were identified in vivo including 28 prototype compounds and 40 metabolites. The metabolic characteristics of these components were revealed including identification of new metabolites of 4-hydroxyphenyl ethyl-8-O-[α-L- arabinopyranosyl-(1→6)]-β-D-glucopyranoside (PEG) and lirinidine. A total of 43 components from JHFE were absorbed and/or metabolized. The contribution rate of each type of chemical component from JHFE to its lipid-lowering effect from high to low were A, F, PG, PA, D and T. Conclusion: The results of this study showed that JHFE demonstrated a significant lipid-lowering effect in a high-fat diet (HFD)-induced hyperlipidemia mouse model. Specific types of PA, PG, F, D, T and A formed the pharmaceutical architecture of the lipid-lowering effect of JHFE. This study should prove useful for clarifying the components responsible for the lipid-lowering effect of JHFE and provide a basis for precision quality control research.
8.Computed tomography-identified phenotypes of small airway obstructions in chronic obstructive pulmonary disease.
Tao LI ; Hao-Peng ZHOU ; Zhi-Jun ZHOU ; Li-Quan GUO ; Linfu ZHOU
Chinese Medical Journal 2021;134(17):2025-2036
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease characteristic of small airway inflammation, obstruction, and emphysema. It is well known that spirometry alone cannot differentiate each separate component. Computed tomography (CT) is widely used to determine the extent of emphysema and small airway involvement in COPD. Compared with the pulmonary function test, small airway CT phenotypes can accurately reflect disease severity in patients with COPD, which is conducive to improving the prognosis of this disease. CT measurement of central airway morphology has been applied in clinical, epidemiologic, and genetic investigations as an inference of the presence and severity of small airway disease. This review will focus on presenting the current knowledge and methodologies in chest CT that aid in identifying discrete COPD phenotypes.
Airway Obstruction
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Humans
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Phenotype
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Pulmonary Disease, Chronic Obstructive/diagnostic imaging*
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Pulmonary Emphysema/diagnostic imaging*
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Tomography, X-Ray Computed