1.Rapid screening of 28 alkaloids in food poisoning samples by liquid chromatography-tandem mass spectrometry
ZHAO Ling-guo ; LUO Lan ; YIN Zhen-yi ; REN Yan ; LEI Lei ; MA Zhi-feng
China Tropical Medicine 2023;23(3):260-
Abstract: Objective To investigate a poisoning incident caused by eating eight treasure congee, and establish liquid chromatography (LC)-mass spectrometry (MS)/MS screening method of 28 alkaloids to provide references for disposal of similar poisoning incidents. Methods LC-MS/MS was used for screening 28 alkaloids in the urine, eight treasure congee and food raw material, and the detected alkaloids were quantified. Samples were extracted with 0.4% formic acid aqueous solution and separated by a Acquity UPLC BEH C18 column (1.7 μm, 100 × 2.1 mm). Acetonitrile-0.2% formic acid aqueous solution was used as the mobile phase and gradient elution was adopted. The ionization mode was electrospray positive ionization mode, and the detection method was multi-reaction monitoring (MRM). Analytes were quantified with the external standard method. Results In the concentration range of 0-100 ng/mL, the linear correlation coefficient r were greater than 0.999 for 28 alkaloids. The recovery of 28 alkaloids in urine sample ranged from 63.0% to 105.0%, and the relative standard deviations (RSDs) were between 5.8% and 8.6%. The recovery of 28 alkaloids in eight treasure congee sample ranged from 72.0% to 109.0%, and the RSDs were between 6.3% and 9.7%. The recovery of 28 alkaloids in semen sesami nigrum sample ranged from 60.0% to 95.0%, and the RSDs were between 4.8% and 8.2%. Hyoscyamine (2 380.0 ng/mL), scopliamine (3.6 ng/mL) and rac-anisodamine (4.7 ng/mL) were detected in the patient's urine. Hyoscyamine (63.3 μg/g), scopliamine (5.7 μg/g) and rac-anisodamine (2.1 μg/g) were detected in eight treasure congee. Hyoscyamine (901.0 μg/g), scopliamine (80.0 μg/g) and rac-anisodamine (30.1 μg/g) were detected in the seed of Datura stramonium L. The ratio of scopliamine and hyoscyamine in the seed of D. stramonium was 1∶11, which complies with the characteristics of D. stramonium L. In urine sample, the proportion of scopliamine and rac-anisodamine was 0.15% and 0.20%, and hyoscyamine accounted for 99.65%. Conclusion Seed morphology, the content range and proportion of three alkaloids are all in accord with the characteristics of D. stramonium. Combined with the clinical symptoms of atropine poisoning, it can be deduced that this incident is a family food poisoning caused by accidental consumption of seed of D. stramonium L. The method can provide technical support for the clinical diagnosis and treatment of alkaloid poisoning patients, and also provide a basis for emergency detection and disposal of alkaloid poisoning events.
2.Advance on chemical compounds of Ainsliaea genus.
Fa-jin FENG ; Zhi-ling XU ; Qian-jun ZHANG ; Zhen-hua YIN ; Wen-yi KANG
China Journal of Chinese Materia Medica 2015;40(7):1244-1251
Plants in Ainsliaea genus, belongs to Compositae family, are traditional Chinese medicine and widely used in folk. These plants contain various types of chemical components, and main components are sesquiterpene lactone and its glycosides. In addition, there are triterpenoids, flavonoids, steroids, phenolic acid, long chain fatty acid and volatile oils. Recently, much attention has been payed to varlous research of A. fragrans. This paper reviewed and summarized the chemical components to provide the theoretical basis for the use of Ainsliaea.
Asteraceae
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chemistry
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Molecular Structure
3.Applications of mathematical statistics methods on compatibility researches of traditional Chinese medicines formulae.
Lan-Yin MAI ; Yi-Xuan LI ; Yong CHEN ; Zhen XIE ; Jie LI ; Ming-Yu ZHONG
China Journal of Chinese Materia Medica 2014;39(10):1749-1756
The compatibility of traditional Chinese medicines (TCMs) formulae containing enormous information, is a complex component system. Applications of mathematical statistics methods on the compatibility researches of traditional Chinese medicines formulae have great significance for promoting the modernization of traditional Chinese medicines and improving clinical efficacies and optimizations of formulae. As a tool for quantitative analysis, data inference and exploring inherent rules of substances, the mathematical statistics method can be used to reveal the working mechanisms of the compatibility of traditional Chinese medicines formulae in qualitatively and quantitatively. By reviewing studies based on the applications of mathematical statistics methods, this paper were summarized from perspective of dosages optimization, efficacies and changes of chemical components as well as the rules of incompatibility and contraindication of formulae, will provide the references for further studying and revealing the working mechanisms and the connotations of traditional Chinese medicines.
Chemistry, Pharmaceutical
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statistics & numerical data
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Data Interpretation, Statistical
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Drug Incompatibility
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Drugs, Chinese Herbal
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analysis
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Medicine, Chinese Traditional
4.Effect of Progestin-primed Ovarian Stimulation Protocol on Outcomes of Aged Infertile Women Who Failed to Get Pregnant in the First IVF/ICSI Cycle: A Self-controlled Study
Yin-Mei CHEN ; Qian-Rong QI ; Qing-Zhen XIE ; Yi-Fan YANG ; Yi XIA ; Xiao-Dan ZHOU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(3):513-518
This study aimed to explore the outcomes of progestin-primed ovarian stimulation protocol (PPOS) in aged infertile women who failed to get pregnant in the first IVF/ICSI-ET cycles with GnRH-a long protocol.A self-controlled study was conducted to retrospectively investigate the clinical outcomes of 104 aged infertile patients who didn't get pregnant in the first IVF/ICSI-ET treatment by stimulating with GnRH-a long protocol (non-PPOS group),and underwent PPOS protocol (PPOS group) in the second cycle between January 2016 and December 2016 in the Center for Reproductive Medicine,Renmin Hospital of Wuhan University.The primary outcomes included clinical pregnancy rate of frozen-thawed embryos transfer (FET) in PPOS group,and good-quality embryo rate in both groups.The secondary outcomes were fertilization rate,egg utilization rate and cycle cancellation rate.The results showed that there were no significant differences in basal follicle stimulating hormone (bFSH),antral follicle count (AFC),duration and total dosage of gonadotropin (Gn),number of oocytes retrieved,intracytoplasmic sperm injection (ICSI) rate,fertilization rate,and cycle cancellation rate between the two groups (P>0.05).However,the oocyte utilization rate and good-quality embryo rate in PPOS group were significantly higher than those in non-PPOS group (P<0.05).By the end of April 2017,62 FET cycles were conducted in PPOS group.The clinical pregnancy rate and embryo implantation rate were 22.58% and 12.70%,respectively.In conclusion,PPOS protocol may provide better clinical outcomes by improving the oocyte utilization rate and good-quality embryo rate for aged infertile patients who failed to get pregnant in the first IVF/ICSI-ET cycles.
5.Effect of substrate of edible mushroom on continuously cropping obstacle of Rehmannia glutinosa.
Rui-Hong RU ; Xuan-Zhen LI ; Xiao-Shu HUNAG ; Feng GAO ; Jian-Ming WANG ; Ben-Yin LI ; Zhong-Yi ZHANG
China Journal of Chinese Materia Medica 2014;39(16):3036-3041
The continuous cultivation of Rehmannia glutinosa causes the accumulation of phenolic acids in soil. It is supposed to be the reason of the so called "continuously cropping obstacle". In this study, phenolic acids (hydroxybenzoic acid, vanillic acid, eugenol, vanillin and ferulic acid) were degraded by the extracta of all the tested spent mushroom substrate (SMS) and the maximal degradation rate was 75.3%, contributed by extraction of SMS of Pleurotus eryngii. Pot experiment indicated that hydroxybenzoic acid and vanillin in soil were also degraded effectively by SMS of P. eryngii. The employment of SMS enhanced ecophysiology index to near the normal levels, such as crown width, leaves number, leaf length, leaf width and height. At the same time, the fresh and dry weight and total catalpol concentration of tuberous root weight of R. glutinosa was increased to 2.70, 3.66, 2.25 times by employment of SMS, respectively. The increase of bacteria, fungi and actinomycetes numbers in rhizosphere soil were observed after the employment of SMS by microbial counts. The employment of SMS also enhanced the enzyme activity in soils, such as sucrase, cellulase, phosphalase, urease and catelase. These results indicated that the employment of SMS alleviated the continuously cropping obstacle of R. glutinosa in some extent.
Agaricales
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chemistry
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metabolism
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Agriculture
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methods
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Biodegradation, Environmental
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Hydroxybenzoates
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analysis
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metabolism
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Rehmannia
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growth & development
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metabolism
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Soil
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chemistry
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Soil Microbiology
6.Epidemiological analysis of brucellosis in Hebei province from 2006 to 2010
Xia, JIANG ; Zhen-yu, QIAN ; Xiao-li, LIU ; Yue-ping, LI ; Zhao-yi, JIA ; Ying-tong, WANG ; Yin-qi, SUN
Chinese Journal of Endemiology 2012;31(2):209-211
ObjectiveBy analyzing the epidemiological characteristics and trends of brucellosis in Hebei province,provide a scientific basis for the formulation of strategies for effective prevention and control of the disease.MethodsUsing the descriptive epidemiological method,data of the “China information system for disease control and prevention” from 2006 to 2010 were statistically analyzed.ResultsThere were 13 632 reported cases from 2006 to 2010 in Hebei province,no death,the annual incidence rates reported were 3.4068/10 million,3.4851/10 million,4.5701/10 million,4.6045/10 million,and 3.5582/10 million,respectively.Eleven counties throughout the province had reported cases.The cases were found intensively in Zhangjiakou,Chengde,Baoding,Handan and Shijiazhuang,which accounting for 90.02% (12 271/13 632) of the total cases.The disease was found each month throughout the year,and showed a seasonal cycle with peak period in spring and summer.The disease was most commonly found in 25 - 65 age people,which accounting for 84.57%(11 529/13 632).The incidence in male was higher than that of female,and male to female ratio was about 3.56:1.00.Vocational high risk population was farmers,accounting for 91.15% of the total cases(12 425/13 632).ConclusionsBrucellosis epidemic in Hebei province is relatively serious,and the epidemic range has expand each year,even highly active in some particular areas.To control the outbreak of brucellosis,departments cooperation between health and animal husbandry should be strengthened; management of source of infection should be strengthened; health education and behavior intervention should be carried out thoroughly and deeply for high-risk groups.
7.Intervention of berberine on lipid deposition in liver cells of non-alcoholic fatty liver disease rats induced by high fat diet.
Li HAN ; Qin-He YANG ; Yu-Pei ZHANG ; Hai-Zhen YAN ; Xiao-Feng ZHU ; Xiang-Wen GONG ; Ling JIN ; Pan-Pan WANG ; Yi-Zhen LIU ; Yin-Ji LIANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(3):314-319
OBJECTIVETo explore the effect of berberine on lipid metabolism disorder and lipid deposition in liver cells of non-alcoholic fatty liver disease (NAFLD) rats induced by high fat diet.
METHODSAfter one week adaptable feeding, 45 SPF level male SD rats were randomly divided into 3 groups, the normal control group, the model group, and the berberine group, 15 in each group. Except those in the normal control group, all rats were fed with high fat diet to prepare NAFLD model. As for rats in the berberine group, Berberine Hydrochloride was administered by gastrogavage. HE staining and oil red O staining were performed to identify the model after 8 weeks. Hepatocytes were isolated, and their activities and purities were tested by Typan blue staining and flow cytometry (FCM). Serum levels of TC, TG, HDL-C, and LDL-C were detected using automatic biochemical analyzer. mRNA expression levels of LXRα and FAS in liver cells were analyzed by Real-time quantitative polymerase chain reaction (PCR). Protein levels of LXRα and FAS in liver cells were examined by Western blot.
RESULTSThe NAFLD rat model was successfully established by high fat diet. The yields of purified liver cells in each rat were (6.0-7.5) x 10(8). The viability of isolated liver cells with purity over 90% (tested by FCM analysis) was higher than 95%. Compared with the normal control group,the expression of LXRα and FAS at mRNA and protein levels was higher in the model group (P < 0.01). Compared with the model group, the expression of LXRα and FAS at mRNA and protein levels was obviously down-regulated in the berberine group (P < 0.01).
CONCLUSIONSLXRα/FAS signaling pathway was one of important signaling pathways of NAFLD lipid metabolism disorders. Berberine could recover hepatocyte fatty deposits in NAFLD rats by adjusting the LXR/FAS signaling pathway of hepatocytes, which might be one of important mechanisms for fighting against NAFLD.
Animals ; Berberine ; therapeutic use ; Diet, High-Fat ; Down-Regulation ; Drugs, Chinese Herbal ; therapeutic use ; Fatty Liver ; Hepatocytes ; Lipids ; Male ; Non-alcoholic Fatty Liver Disease ; drug therapy ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Signal Transduction
8.Effects of soothing liver and invigorating spleen recipes on LPS-induced hepatocytes injury of rats and TLR4/p38MAPK signal pathway.
Xiang-Wen GONG ; Qin-He YANG ; Hai-Zhen YAN ; Yu-Pei ZHANG ; Yin-Ji LIANG ; Yi-Zhen LIU ; Zhang JIN-WEN ; Chun-Mei LIN ; Yuan-Yuan LI
China Journal of Chinese Materia Medica 2014;39(20):4027-4033
OBJECTIVETo explore the effects of soothing liver and invigorating spleen recipes on lipopolysaccharide(LPS) induced hepatocyte inflammation of rats and TLR4/p38MAPK signal pathway.
METHODThe hepatocytes of SD rats were cultured and identified in vitro. The medicated serum of soothing liver and invigorating spleen recipes was prepared. The hepatocytes were treated with soothing liver and invigorating spleen recipes. Then Interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) expression in cultural supernatants were assayed by ELISA. The expressions of Toll-Like 4 (TLR4), p38 mitogen activated protein kinases (p38MAPK) and p-p38 mitogen-activated protein kinase (p-p38MAPK) were detected by Western blot.
RESULTThe rat medicated serum of soothing liver and invigorating spleen recipes was extracted for 2-3 mL. The purified rat hepatocytes were 1.5 x 10(8)-2.0 x 10(8). The cell viability was above 95% detected by Typan blue staining. The hepatocytes were identified by immumofluorescence assay. The detection of hepatocyte cultural supernatants: compared with that of the control group, IL-6 and TNF-α expression were increased in the LPS group (P < 0.01). While compared with that of the LPS group, the expressions of IL-6 and TNF-α were decreased after soothing liver and invigorating spleen recipes intervention (P < 0.01). The detection of hepatocyte proteins: compared with that of the control group, the protein expressions of p38MAPK, p-p38MAPK and TLR4 were all increased significantly in the LPS group (P < 0.01). Compared with that of the LPS group, the protein expressions of p38MAPK was decreased significantly in SB239063 group and it was also decreased in the soothing liver and invigorating spleen recipes group, but with no significant difference. Compared with that of the LPS group, p38MAPK expression was reduced significantly in the soothing liver and invigorating spleen recipes group and the SB239063 (p38MAPK pathway inhibitor) group (P < 0.01). TLR4 protein expression was decreased markedly in the soothing liver and invigorating spleen recipes group (P < 0.01) but had no difference between the SB239063 group and the LPS group.
CONCLUSIONThe soothing liver and invigorating spleen recipes may regulate hepatocyte inflammatory injury of rats through TLR4/p38MAPK signaling pathway.
Animals ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Hepatocytes ; drug effects ; metabolism ; Humans ; Lipopolysaccharides ; adverse effects ; Liver ; drug effects ; injuries ; metabolism ; Male ; Non-alcoholic Fatty Liver Disease ; drug therapy ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; drug effects ; Spleen ; drug effects ; metabolism ; Toll-Like Receptor 4 ; genetics ; metabolism ; p38 Mitogen-Activated Protein Kinases ; genetics ; metabolism
9.Effect of pinggan qianyang on hypothalamic proteome in the hyperthyroid rats with hyperactivity of liver-yang.
Yao-hui YIN ; Zhen-jia YI ; Guang-wei ZHONG ; Jian-jun HU
Journal of Central South University(Medical Sciences) 2008;33(5):391-398
OBJECTIVE:
To investigate the effect of pinggan-qianyang (PGQY), a Chinese medicine, on hypothalamic proteome in the hyperthyroid rats with hyperactivity of liver-yang, and to explore its mechanism.
METHODS:
The rat model was established by intraperitoneal injection of levo-thyroxine (L-T4) and fuzi decotion. All the quantitative and qualitative changes of the protein expressions were compared among the normal group,the model group and the treatment group by proteomic techniques.
RESULTS:
The protein spots in the 3 groups were mainly displayed at the isoelectric point (pI) 3 approximately 10, and the molecular weights were 13.8 approximately 98.8 kD.Compared with the normal group, 6 spots of protein expression increased and 10 decreased in the model group. All the changed protein in the model group returned to normal level after PGQY treatment. Mass-spectrometer and bio-informatics indicated that these proteins were Prohibitin, Peroxiredoxin-6, histidine triad nucleotide-binding protein 1, protein-tyrosine-phosphatase, predicted protein, profilin-2, peroxir doxin-II, heat shock protein-27, and annexin-A1.
CONCLUSION
There are differences in the expression of hypothalamus proteins in the hyperthyroid rats with hyperactivity of liver-yang after the treatment with PGQY, and the 9 identified protein spots may be associated with the mechanism of PGQY.
Animals
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Drugs, Chinese Herbal
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therapeutic use
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Female
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Hyperthyroidism
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drug therapy
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metabolism
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Hypothalamus
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metabolism
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Male
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Medicine, Chinese Traditional
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Nerve Tissue Proteins
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metabolism
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Peroxiredoxin VI
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metabolism
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Phytotherapy
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Proteome
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metabolism
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Random Allocation
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Rats
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Rats, Sprague-Dawley
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Repressor Proteins
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metabolism
10.Risk factors of the failure in digit replantation.
Fei YIN ; Jing-yi MI ; Yong-jun RUI ; Ya-jun XU ; Qun YAO ; Yang QIU ; Zun-shan KE ; Zhen-zhong SUN
China Journal of Orthopaedics and Traumatology 2015;28(5):429-432
OBJECTIVETo explore the relative factors on the failure in digit replantation in order to take preventions to control the risk factors.
METHODSFrom January 2013 to December 2013, 236 consecutive patients (311 fingers) underwent digit replantation were collected to analyze retrospectively, involving 183 males and 53 females with an average age of 34.5 years old ranging from 2 to 62 years old (6 cases under 6 years old and 230 cases elder than 6 years old). There were 51 thumbs, 87 index fingers, 78 middle fingers, 63 ring fings and 32 little thumbs. Forty cases(forty fings) who were failured as the observation group, the others as the control group. The factors of age, gender, finger, cause of injury, smoking history, ischemia duration, plane of division, condition of venous drainage and condition of arterial repair we assessed.
RESULTSAll 236 cases with 311 fingers were replanted, 40 fingers were failured after operation. The relative factors on the failure in digit replantation included smoking history, cause of injury, plane of division, condition of venous drainage and condition of arterial repair (P< 0.05). There were no significant correlation between the failure and age, gender, finger and ischemia duration (P>0.05).
CONCLUSIONSmoking history, causes of injury, plane of division, condition of venous drainage and condition of arterial repair are risks of failure in digit replantation. Before choosing the type of operation, it should be think about the patient's general conditions, injury status, grasp firmly the operative indications and actively carry out surgical treatment.
Adolescent ; Adult ; Child ; Female ; Finger Injuries ; surgery ; Fingers ; surgery ; Humans ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; Replantation ; Retrospective Studies ; Risk Factors ; Thumb ; injuries ; surgery ; Treatment Failure ; Young Adult