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1.
J Pharm Biomed Anal ; 197: 113964, 2021 Apr 15.
Article in English | MEDLINE | ID: mdl-33601157

ABSTRACT

Previously published studies have revealed the protective effect of puerarin against non-alcoholic steatohepatitis (NASH), but the definite mechanism of this effect still remains unclear. The present work was an attempt to assess the beneficial effects and the underlying mechanisms of puerarin on methionine-choline-deficient (MCD) diet-induced NASH in C57BL/6 mice by using a combination of metabonomics and 16S rRNA gene sequencing technology. Nuclear magnetic resonance (NMR)-based metabonomics showed significant hepatic and urinary metabolic phenotype changes between MCD-diet fed mice and the healthy controls. A total of eight and thirteen metabolites were identified as differential metabolites associated with NASH in liver tissue and urine of mice, respectively. The proposed pathways mainly included pyrimidine metabolism, one-carbon metabolism, amino acid metabolism, glycolysis, tricarboxylic acid (TCA) cycle and synthesis and degradation of ketone bodies. Furthermore, 16S rRNA gene sequencing analysis delineated remarkable variations in gut microbiota profiles in response to MCD diet in mice and forty differential bacterial taxa related to NASH were found between the control and model group. Puerarin could improve hepatic steatosis and inflammation in NASH mice via partially ameliorating metabolic disorders and rebalancing the gut flora. Specifically, puerarin could inhibit lipopolysaccharide (LPS)-producing genus Helicobacter, and promote butyrate-producing genus Roseburia. These findings offered novel insights into the in-depth understanding of the pathogenesis of NASH and provided further evidence for the potential use of puerarin as an anti-NASH agent.


Subject(s)
Non-alcoholic Fatty Liver Disease , Animals , Choline , Diet , Disease Models, Animal , Genes, rRNA , Isoflavones , Liver , Magnetic Resonance Spectroscopy , Metabolomics , Methionine , Mice , Mice, Inbred C57BL , Non-alcoholic Fatty Liver Disease/drug therapy , RNA, Ribosomal, 16S/genetics
2.
J Pharm Biomed Anal ; 123: 63-73, 2016 May 10.
Article in English | MEDLINE | ID: mdl-26874256

ABSTRACT

Previously published reports have revealed the antidepressant-like effects of icariin in a chronic mild stress model of depression and in a social defeat stress model in mice. However, the therapeutic effect of icariin in an animal model of glucocorticoid-induced depression remains unclear. This study aimed to investigate antidepressant-like effect and the possible mechanisms of icariin in a rat model of corticosterone (CORT)-induced depression by using a combination of behavioral and biochemical assessments and NMR-based metabonomics. The depression model was established by subcutaneous injections of CORT for 21 consecutive days in rats, as evidenced by reduced sucrose intake and hippocampal brain-derived neurotrophic factor (BDNF) levels, together with an increase in immobility time in a forced swim test (FST). Icariin significantly increased sucrose intake and hippocampal BDNF level and decreased the immobility time in FST in CORT-induced depressive rats, suggesting its potent antidepressant activity. Moreover, metabonomic analysis identified eight, five and three potential biomarkers associated with depression in serum, urine and brain tissue extract, respectively. These biomarkers are primarily involved in energy metabolism, lipid metabolism, amino acid metabolism and gut microbe metabolism. Icariin reversed the pathological process of CORT-induced depression, partially via regulation of the disturbed metabolic pathways. These results provide important mechanistic insights into the protective effects of icariin against CORT-induced depression and metabolic dysfunction.


Subject(s)
Brain-Derived Neurotrophic Factor/metabolism , Corticosterone/pharmacology , Depression/chemically induced , Depression/drug therapy , Flavonoids/pharmacology , Hippocampus/drug effects , Metabolic Networks and Pathways/drug effects , Animals , Antidepressive Agents/pharmacology , Behavior, Animal/drug effects , Disease Models, Animal , Hippocampus/metabolism , Magnetic Resonance Imaging/methods , Male , Metabolomics/methods , Rats , Rats, Sprague-Dawley , Stress, Psychological/drug therapy , Stress, Psychological/metabolism , Swimming/physiology
3.
Zhongguo Zhong Yao Za Zhi ; 41(18): 3451-3456, 2016 Sep.
Article in Chinese | MEDLINE | ID: mdl-28925131

ABSTRACT

To elucidate the intervention effects of Jiaotai pills(JTP) on p-chlorophenylalanine (PCPA)-induced insomnia in rats and its underlying mechanism, the insomnia model was established by single intraperitoneal injection with PCPA in rats. The locomotor activity of rats was observed, and the levels of nerve growth factor(NGF) in hypothalamus, hippocampus, prefrontal cortex and serum of rats were determined by using ELISA. Moreover, a proton nuclear magnetic resonance(¹H-NMR)-based metabonomic approach was developed to profile insomnia-related metabolites in rat serum and hippocampus and analyze the intervention effects of JTP on changes in underlying biomarkers related to locomotor activity, NGF and insomnia. According to the results, JTP could significantly suppress the locomotor activity of insomnia rats, and increase the NGF levels in hypothalamus, hippocampus, prefrontal cortex and serum of rats with insomnia. The disturbed metabolic state associated with PCPA-induced insomnia in rat serum and hippocampus could be intervened by JTP. Meanwhile, six and five potential biomarkers related to insomnia in rat serum and hippocampus were reversed by administration of JTP. In conclusion, the current study demonstrated that JTP had protective effects against PCPA-induced insomnia in rats, which was probably correlated with regulation of NGF level and metabolism of amino acids, lipids and choline.


Subject(s)
Drugs, Chinese Herbal/pharmacology , Hippocampus/drug effects , Sleep Initiation and Maintenance Disorders/drug therapy , Animals , Nerve Growth Factor/metabolism , Rats , Sleep Initiation and Maintenance Disorders/chemically induced
4.
Phytomedicine ; 22(3): 333-43, 2015 Mar 15.
Article in English | MEDLINE | ID: mdl-25837270

ABSTRACT

Puerarin possesses a wide spectrum of biological activities including ameliorating effects on blood stasis, but the definite mechanism of this effect is still not known. In this study, a (1)H NMR-based plasma and urinary metabonomic approach was applied to comprehensively and holistically investigate the therapeutic effects of puerarin on blood stasis and its underlying mechanisms. Puerarin was injected intraperitoneally once daily for consecutive 7 days. The blood stasis rat model was established by placing the rats in ice-cold water during the time interval between two injections of adrenaline. With pattern recognition analysis, a clear separation of blood stasis model group and healthy control group was achieved and puerarin pretreatment group was located much closer to the control group than the model group, which was consistent with results of hemorheology studies. 15 and 10 potential biomarkers associated with blood stasis in plasma and urine, respectively, which were mainly involved in energy metabolism, lipid and membrane metabolisms, amino acid metabolism and gut microbiota metabolism, were identified. Puerarin could prevent blood stasis through partially regulating the disturbed metabolic pathways. This work highlights that metabonomics is a valuable tool for studying the essence of blood stasis as well as evaluating the efficacy of the corresponding drug treatment.


Subject(s)
Drugs, Chinese Herbal/pharmacology , Isoflavones/pharmacology , Metabolomics , Animals , Blood Viscosity , Hematocrit , Hemorheology/drug effects , Magnetic Resonance Spectroscopy , Male , Medicine, Chinese Traditional , Rats , Rats, Sprague-Dawley
5.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 35(12): 1427-32, 2015 Dec.
Article in Chinese | MEDLINE | ID: mdl-26882602

ABSTRACT

OBJECTIVE: To observe metabolomic changes in urine of chronic superficial gastritis (CSG) patients with Pi-qi deficiency syndrome (PQDS) or Pi-Wei dampness-heat syndrome (PWDHS), thereby providing scientific evidence for syndrome typing of them. METHODS: Urine samples were collected from CSG patients with PQDS/PWDHS and healthy volunteers, 10 in each group. Proton nuclear magnetic resonance spectroscopy (1H-NMR) based metabonomic analysis was performed on urine samples. Contents of related biomarkers were analyzed by principal component analysis (PCA), partial least square discriminant analysis (PLS-DA), and urivariate statistical analysis. RESULTS: PLS-DA analysis showed that metabolites among CSG patients with PQDS/PWDHS and healthy volunteers could be mutually distinguished. Seven differentially identified metabolites were screened from urines of CSG patients with PQDS and healthy volunteers included glutamate, methionine, α-oxoglutarate, dimethylglycine, creatinine, taurine, and glucose. Four differentially identified metabolites were screened from urines of CSG patients with PWDHS and healthy volunteers included 2-hydroxybutyric acid, trimethylamine oxide, taurine, and hippuric acid. Eleven differentially identified metabolites were screened from urines of CSG patients with PQDS and PWDHS included fucose, ß-hydroxybutyric acid, alanine, glutamate, methionine, succinic acid, citric acid, creatinine, glucose, hippuric acid, and lactic acid. CONCLUSION: The metabolic differences of CSG patients PQDS and PWDHS mainly manifested in glycometabolism, lipid metabolism, and amino acids catabolism, and 1H-NMR based metabonomics may be used in classified study of Chinese medical syndrome typing.


Subject(s)
Gastritis/urine , Medicine, Chinese Traditional , Proton Magnetic Resonance Spectroscopy , Biomarkers/urine , Discriminant Analysis , Hot Temperature , Humans , Hydroxybutyrates , Ketoglutaric Acids , Least-Squares Analysis , Metabolome/physiology , Metabolomics , Principal Component Analysis , Qi , Syndrome
6.
Yao Xue Xue Bao ; 48(11): 1733-7, 2013 Nov.
Article in Chinese | MEDLINE | ID: mdl-24475714

ABSTRACT

To investigate the intervention effects of Morinda officinalis How. on 'Kidney-yang deficiency syndrome' induced by hydrocortisone in rats, the metabolic profiles of rat urine were characterized using proton nuclear magnetic resonance and principal component analysis (PCA) was applied to study the trajectory of urinary metabolic phenotype of rats with 'Kidney-yang deficiency syndrome' under administration of M. officinalis at different time points. Meanwhile, the intervention effects of M. officinalis on urinary metabolic potential biomarkers associated with 'Kidney-yang deficiency syndrome' were also discussed. The experimental results showed that in accordance to the increased time of administration, an obvious tendency was observed that clustering of the treatment group moved gradually closed to that of the control group. Eight potential biomarkers including citrate, succinate, alpha-ketoglutarate, lactate, betaine, sarcosine, alanine and taurine were definitely up- or down-regulated. In conclusion, the effectiveness of M. oficinalis on 'Kidney-yang deficiency syndrome' is proved using the established metabonomic method and the regulated metabolic pathways involve energy metabolism, transmethylation and transportation of amine. Meanwhile, the administration of M. officinalis can alleviate the kidney impairment induced by 'Kidney-yang deficiency syndrome'.


Subject(s)
Biomarkers/urine , Drugs, Chinese Herbal/pharmacology , Kidney Diseases/urine , Morinda/chemistry , Yang Deficiency/urine , Alanine/urine , Animals , Betaine/urine , Citric Acid/urine , Drugs, Chinese Herbal/isolation & purification , Hydrocortisone , Ketoglutaric Acids/urine , Kidney Diseases/chemically induced , Lactic Acid/urine , Magnetic Resonance Spectroscopy , Male , Metabolomics/methods , Plants, Medicinal/chemistry , Principal Component Analysis , Random Allocation , Rats , Rats, Sprague-Dawley , Sarcosine/urine , Succinic Acid/urine , Taurine/urine , Yang Deficiency/chemically induced
7.
Zhong Yao Cai ; 32(8): 1232-3, 2009 Aug.
Article in Chinese | MEDLINE | ID: mdl-19960945

ABSTRACT

OBJECTIVE: To study the chemical constituents of Dryopteris fragrans. METHODS: The constituents of CHCl3-soluble portion and ethyl acetate-soluble portion from the alcohol extract were isolated and purified by means of chromatography. All the compounds were identified by their physical characteristics and spectral features. RESULTS: Five compounds were isolated and identified as beta-sitosterol (I), rutin (II), quercetin (III), quercetin-3-O-beta-D-pyranglucoside (IV) and 5,7-dihydroxy-2-hydroxymethyl chromone (V). CONCLUSION: Compounds II - V are isolated from this plant for the first time.


Subject(s)
Dryopteris/chemistry , Plants, Medicinal/chemistry , Quercetin/analogs & derivatives , Rutin/isolation & purification , Acetates , Ethanol , Magnetic Resonance Spectroscopy , Molecular Structure , Quercetin/chemistry , Quercetin/isolation & purification , Rutin/chemistry , Sitosterols/chemistry , Sitosterols/isolation & purification
8.
Zhong Yao Cai ; 31(1): 49-51, 2008 Jan.
Article in Chinese | MEDLINE | ID: mdl-18589749

ABSTRACT

OBJECTIVE: To investigate the chemical constituents of the roots of Anemone altaica Fisch. ex C. A. May. METHODS: The constituents of n-BuOH-soluble portion were isolated and purified by means of chromatography. Compounds were identified by their physical characteristics and spectral features. RESULTS: Six compounds were isolated and identified as cimigenol-3-O-beta-D-xylopyranoside (1), cimigenol-3-O-beta-D-xylopyranol (1 -->3)-beta-D-xylopyranoside (2), isolariciresinol-9-O-beta-D-glucopyranoside (3), adenosine (4), uridine (5) and methyl-beta-D-glucopyranoside (6). CONCLUSION: All compounds are isolated from this genus for the first time.


Subject(s)
Anemone/chemistry , Glucosides/isolation & purification , Glycosides/isolation & purification , Plant Roots/chemistry , Plants, Medicinal/chemistry , Adenosine/chemistry , Adenosine/isolation & purification , Cycasin/chemistry , Cycasin/isolation & purification , Glucosides/chemistry , Glycosides/chemistry , Uridine/chemistry , Uridine/isolation & purification
9.
Zhongguo Zhong Yao Za Zhi ; 31(10): 812-3, 2006 May.
Article in Chinese | MEDLINE | ID: mdl-17048662

ABSTRACT

OBJECTIVE: To investigate the chemical constituents of Hemistepta lyrata. METHOD: The constituents of the EtOAc-soluble portions of the 95% ethanol extract were isolated and purified by means of chromatography. Compounds were identified by their physical characteristics and spectral features. RESULT: Five compounds were isolated and identified as caffeic acid (1), tracheloside (2), uracil (3), 8-carboxymethyl-p-hydroxycinnamic acid (4), and 3-O-p-coumaroylquinic acid (5). CONCLUSION: Compounds 1-5 were isolated from this genus for the first time.


Subject(s)
4-Butyrolactone/analogs & derivatives , Asteraceae/chemistry , Caffeic Acids/isolation & purification , Glucosides/isolation & purification , Plants, Medicinal/chemistry , Uracil/isolation & purification , 4-Butyrolactone/chemistry , 4-Butyrolactone/isolation & purification , Caffeic Acids/chemistry , Glucosides/chemistry , Uracil/chemistry
10.
Yao Xue Xue Bao ; 40(3): 255-7, 2005 Mar.
Article in English | MEDLINE | ID: mdl-15952599

ABSTRACT

AIM: To study the chemical constituents of Cypripedium tibeticum. METHODS: Compounds were isolated by repeated silica gel chromatography and purified on Sephadex LH-20 and structures were determined by spectral analysis. RESULTS: Cypritibetquinones A and B were isolated from the ethyl acetate residue and their structures were determined as 7-hydroxy-2-methoxy-1 4-phenanthraquinone (1) and 7-hydroxy-2, 10-dimethoxy-l1 4-phenanthraquinone (2), respectively, by extensive spectral analyses. CONCLUSION: Cypritibetquinones A and B are two new phenanthraquinones.


Subject(s)
Anthraquinones/isolation & purification , Orchidaceae/chemistry , Phenanthrenes/isolation & purification , Plants, Medicinal/chemistry , Anthraquinones/chemistry , Molecular Conformation , Molecular Structure , Phenanthrenes/chemistry , Rhizome/chemistry
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