[Objectives]To establish the quality standard of Nardostachys jatamansi Herba.[Methods]The characters and microscopical identification of N.jatamansi Herba were carried out.The contents of moisture,total ash,acid-inso...[Objectives]To establish the quality standard of Nardostachys jatamansi Herba.[Methods]The characters and microscopical identification of N.jatamansi Herba were carried out.The contents of moisture,total ash,acid-insoluble ash and extract were determined according to the relevant methods of the Chinese Pharmacopoeia(2020 edition).Using chlorogenic acid and 3,5-O-dicaffeoylquinic acid as quality control indexes,TLC and HPLC methods were established for qualitative and quantitative determination,and HPLC fingerprints were established.[Results]The characteristics of character identification,microscopic identification and thin layer identification were obvious.The moisture content ranged from 2.7%to 7.8%,with an average value of 5.4%.The total ash content ranged from 6.7%to 16.2%,with an average of 11.0%.The acid-insoluble ash content ranged from 0.7%to 8.5%,with an average of 3.6%.Extractives content ranged from 20.9%to 34.4%,with an average of 29.7%.Chlorogenic acid content was between 0.45%and 1.30%,with an average value of 0.77%.The content of 3,5-O-dicaffeoylquinic acid ranged from 0.18%to 0.58%,with an average of 0.31%.The similarity of each batch was between 0.930 and 0.994,indicating that the quality of medicinal materials from different producing areas was stable.[Conclusions]The quality standard of N.jatamansi Herba was established,which could provide quality control basis for rational,comprehensive and efficient utilization of N.jatamansi DC.resources and clinical use.展开更多
Objectives:To gather updated information on the traditional uses,phytochemistry,and pharmacological activities of Valeriana jatamansi Jones.Background:V.jatamansi is indigenous to the Himalayas immensely used as tradi...Objectives:To gather updated information on the traditional uses,phytochemistry,and pharmacological activities of Valeriana jatamansi Jones.Background:V.jatamansi is indigenous to the Himalayas immensely used as traditional folk remedy.It contains a variety of secondary metabolites that give it a high medicinal and therapeutic values.For the purpose of collecting relevant information on V.jatamansi,a comprehensive literature search was conducted.Based on ethnobotanical sources and historical records,traditional uses were compiled.Scientific articles and databases were consulted for phytochemical data.In order to assess the plant’s therapeutic properties,pharmacological studies were reviewed.Summary:The botanical is known for its ethnobotanical uses ranging from sedative and anxiolytic effects to treating insomnia,epilepsy,and gastrointestinal disorders.Indigenous healing practices rely heavily on its traditional uses.Based on the phytochemical analysis,it contains a diverse array of bioactive compounds,including sesquiterpenoids and iridoids.Valerenic acid and jatamansinol,among other compounds,contribute to its therapeutic potential.A broad spectrum of pharmacological activities is found including anxiety-relieving,sedative,anti-inflammatory,neuroprotective,and antimicrobial effects.Outlook:Based on the evidence supporting ethnomedicinal uses of V.jatamansi,its immense biopotential and multiple pharmacological roles,standard clinical trials are required to evaluate its therapeutic potential.展开更多
BACKGROUND: Hypothalamus-pituitary-adrenal (HPA) axis dysfunction has been closely linked to anxiety. Previous studies have shown that Valeriana jatamansi Jones extract exhibits clear anxiolytic effects, but it is ...BACKGROUND: Hypothalamus-pituitary-adrenal (HPA) axis dysfunction has been closely linked to anxiety. Previous studies have shown that Valeriana jatamansi Jones extract exhibits clear anxiolytic effects, but it is unclear about the mechanism underlying regulation of the HPA axis dysfunction in these anxiolytic effects. OBJECTIVE: To observe the effects of Valeriana jatamansi Jones (Zhizhu Xiang) extract on HPA axis function in a rat model of anxiety, and to compare these effects with positive control estazolam. DESIGN, TIME AND SETTING: Randomized, controlled, animal experiment was performed at Chengdu University of Traditional Chinese Medicine, China, between February and September in 2006. MATERIALS: Estazolam was purchased from Shanghai Jiufu Pharmaceutical, China; Valeriana jatamansiJones was purchased from the Lotus Pond Market for Chinese Herbal Medicine in Chengdu. It consisted of iridoids and flavonoid components. METHODS: A total of 72 Sprague Dawley rats, aged 2 months, were randomly assigned to 6 groups low-, medium-, and high-dose Valerianajatamansi Jones groups intragastrically injected with 0.3, 0.6, and 0.9 g/kg per day Valerianajatamansi Jones extract, respectively; estazolam group intragastrically injected with 1.5 mg/kg per day estazolam; model and normal groups administered 5 mL physiological saline. Anxiety was established in all groups, except the normal group, through the use of elevated plus-maze test at 7 days following drug administration. MAIN OUTCOME MEASURES: Blood β-endorphin and corticosterone levels were determined using enzyme-linked immunosorbent assay following treatment with ValerianajatamansiJones extract. Expressions of HPA axis-related genes were measured by cDNA microarray. RESULTS: Blood β-endorphin and corticosterone levels were significantly greater in the model group than in the normal group. Compared with the model group, levels decreased with Valeriana jatamansi Jones extract or estazolam treatment, particularly in the low-dose Valeriana jatamansi Jones group (P〈 0.01). cDNA microarray results demonstrated that corticotropin-releasing hormone and Orexin, which are associated with HPA axis function, were differentially expressed; expression increased in the model group, but decreased in rats treated with Valerianajatamansi Jones extract. CONCLUSION: Valerianajatamansi Jones extract plays a role in regulating HPA axis function in a rat model of anxiety, and this effect was superior to estazolam.展开更多
AIM: To investigate the anti-diabetogenic mechanism of Nardostachys jatamansi extract (NJE). METHODS: Mice were injected with streptozotocin viaa tail vein to induce diabetes. Rat insulinoma RINm5F cells and isolated ...AIM: To investigate the anti-diabetogenic mechanism of Nardostachys jatamansi extract (NJE). METHODS: Mice were injected with streptozotocin viaa tail vein to induce diabetes. Rat insulinoma RINm5F cells and isolated rat islets were treated with interleukin1β and interferon-γ to induce cytotoxicity. RESULTS: Treatment of mice with streptozotocin resulted in hyperglycemia and hypoinsulinemia, which was conf irmed by immunohistochemical staining of the islets. The diabetogenic effects of streptozotocin were completely abolished when mice were pretreated with NJE. Inhibition of streptozotocin-induced hyperglycemia by NJE was mediated by suppression of nuclear factor (NF)-κB activation. In addition, NJE protected against cytokine-mediated cytotoxicity. Incubation of RINm5F cells and islets with NJE resulted in a signif icant reduction in cytokine-induced NF-κB activation and downstream events, inducible nitric oxide synthase expression and nitric oxide production. The protective effect of NJE was further demonstrated by the normal insulin secretion of cytokine-treated islets in response to glucose. CONCLUSION: NJE provided resistance to pancreatic β-cell damage from cytokine or streptozotocin treatment. The β-cell protective effect of NJE is mediated by suppressing NF-κB activation.展开更多
Micropropagation of Valeriana jatamansi Jones by using small segments of rhizome on full strength MS medium having various concentrations and combinations of auxin Naphthaleneacetic acid (NAA) and cytokinin Benzylamin...Micropropagation of Valeriana jatamansi Jones by using small segments of rhizome on full strength MS medium having various concentrations and combinations of auxin Naphthaleneacetic acid (NAA) and cytokinin Benzylaminopurine (BAP) was conducted. The highest mean shoot length (3.71 cm) was achieved when media was fortified with BAP 2 mg/L in combination with NAA 1 mg/L. The highest mean leaf number i.e. 6.00 was observed when BAP was used alone at 2 mg/L. Average root length (0.77 cm) was recorded when BAP 1.5 mg/L along with NAA 0.5 mg/L was used. Maximum mean root numbers 2.57 were obtained when BAP and NAA were used at equal concentrations i.e. 1.5 mg/L. Observed data demonstrated that BAP up to 1 mg/L, 1.5 mg/L and 2 mg/L promotes shoot length, leaf number and leaf growth when used along with NAA at 0 mg/L, 0.5 mg/L and 1 mg/L. However lower quantities of both NAA (0 mg/L, 0.5 mg/L) and BAP (1 mg/L and 1.5 mg/L) produced significantly higher root length of Valeriana jatamansi Jones but the higher concentrations of plant growth hormones BAP (2 mg/L, 3 mg/L) and NAA (1 mg/L, 1.5 mg/L) were found unfavorable for increase in root length but the root number increases at higher concentration of NAA (1 mg/L and 1.5 mg/L).展开更多
[Objectives] Volatile oil components of traditional drug use site " root and rhizome" of N. jatamansi and herb were identified and contrasted,which aimed to provide the basis for rationally using wild N. jat...[Objectives] Volatile oil components of traditional drug use site " root and rhizome" of N. jatamansi and herb were identified and contrasted,which aimed to provide the basis for rationally using wild N. jatamansi resource. [Methods]Volatile oil components from different sites of N. jatamansi were identified and isolated by GC-MS. [Results] There were 56 kinds of volatile oil components from different sites of N. jatamansi,in which 39 components from herb of N. jatamansi,39 components from root and rhizome of N. jatamansi,and there were 22 common components. But 1 component in higher concentration had obvious difference. [Conclusions] The herb of N. jatamansi could not completely replace " root and rhizome" of N. jatamansi as the medicine,which was consistent with prior detection result of each physicochemical index from different sites of N. jatamansi. The research could provide the reference for making quality standard of N. jatamansi medicine and rational basis for its further research and development.展开更多
[Objectives]To investigate the inhibitory effect and possible mechanism of essential oil from Valerianae Jatamansi Rhizoma et Radix on microglia activation induced by lipopolysaccharide(LPS).[Methods]The LPS-induced m...[Objectives]To investigate the inhibitory effect and possible mechanism of essential oil from Valerianae Jatamansi Rhizoma et Radix on microglia activation induced by lipopolysaccharide(LPS).[Methods]The LPS-induced microglia activation model was established and treated with different doses of essential oil from Valerianae Jatamansi Rhizoma et Radix.MTT assay was used to detect cell viability,ELISA to detect IL-6 secretion,RT-PCR to detect mRNA expression levels of IL-6,IL-1β,NF-κB,and IκBα,Western blotting to detect the protein expression of IL-6,IL-1β,NF-κB,IκBα,and their phosphorylated products.[Results]Compared with the normal control group,the model group showed increased IL-6 content(P<0.01),upregulated mRNA and protein levels of IL-6,IL-1β,and NF-κB(P<0.01),and elevated ratio of P-IκBα/IκBα(P<0.05).Compared with the model group,4 and 2μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix reduced the content of IL-6(P<0.05),while 4,2,and 1μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix down-regulated the mRNA and protein levels of IL-6,IL-1β,and NF-κB to varying degrees(P<0.05 or P<0.01),up-regulate the mRNA expression of IκBα(P<0.05 or P<0.01),and decreased the ratio of P-IκBα/IκBα(P<0.05 or P<0.01).[Conclusions]Essential oil from Valerianae Jatamansi Rhizoma et Radix can inhibit LPS-induced microglia activation,and its mechanism may be related to the inhibition of the NF-κB/IκBαsignaling pathway.展开更多
Objective:To find out the antibacterial activity of Valeriana jatamansi(V.jatamansi)rhizomes against the extended-spectrumβ-lactamases(ESBLs)producing isolates of Enterobacteriaceae family.Methods:Confirmation of ESB...Objective:To find out the antibacterial activity of Valeriana jatamansi(V.jatamansi)rhizomes against the extended-spectrumβ-lactamases(ESBLs)producing isolates of Enterobacteriaceae family.Methods:Confirmation of ESBLs producing Escherichia coli,Enterobacter aerogenes,Klebsiella pneumoniae and Hafnia alvei isolated from urinary tract infections was performed by double disc diffusion assay.Antimicrobial susceptibility of all ESBLs producing isolates was determined by disc diffusion method following guidelines of Clinical and Laboratory Standards Institute.Successive extraction of rhizomes of V.jatamansi was performed with hexane,chloroform and methanol using Soxhelt apparatus.These extracts were tested against the ESBLs producing isolates using well diffusion method.Results:Hexane extract showed significant results as compared to chloroform and methanol extracts with the maximum zone of inhibition(21 mm)while ciprofloxacin and amikacin were used as standard drugs.Conclusions:Findings of the study suggested that hexane extract of V.jatamansi can be used in combination with other antibiotics as alternative treatment for urinary tract infections caused by ESBLs producing strains of Enterobacteriaceae.展开更多
Objective:To evaluate the anti-inflammatory effect of Nardostachys jatamansi(N.jatamansi)rhizome against acute,subacute and chronic models of inflammation in experimental animals.Methods:N.jatamansi rhizome extract(15...Objective:To evaluate the anti-inflammatory effect of Nardostachys jatamansi(N.jatamansi)rhizome against acute,subacute and chronic models of inflammation in experimental animals.Methods:N.jatamansi rhizome extract(150 and 300 mg/kg,p.o.)and the reference drugs phenylbutazone(100 mg/kg,p.o.)and acetylsalicylic acid(300 mg/kg,p.o.)were evaluated using models for inflammation(autacoids induced hind paw oedema,formaldehyde induced hind paw oedema,carrageenin-induced paw oedema,cotton pellet granuloma and subcutaneous air pouch model).Results:In acute inflammation as produced by carrageenin 29.06%and 55.81%,by histamine 25.0%and 39.28%,by 5-hydroxytryptamine 21.37%and 36.95%and by prostaglandin E2-induced hind paw oedema 31.03%and 44.82%protection was observed.While in subacute anti-inflammatory models using formaldehyde-induced hind paw oedema(after 1.5 h)13.88%and 33.33%and in chronic anti-inflammatory model using cotton pellet granuloma 7.4%and 17.58%protection from inflammation was observed.N.jatamansi rhizome extract also inhibited the inflammatory mediators(nitric oxide by 12.81%and 38.41%,by prostaglandin E212.58%and 47.82%while by TNF-α13.51%and 41.89%)produced in the pouch.Conclusions:The results of this study strongly indicate the protective effect of N.jatamansi rhizome extract against acute,subacute and chronic models of inflammation,which may be attributed to its anti-inflammatory potential.展开更多
Objective:To study chemical constituents of essential oil of the roots of Nardostachys jatamansi found in different regions of Nepal and also to investigate phytochemical as well as antimicrobial activity of the sampl...Objective:To study chemical constituents of essential oil of the roots of Nardostachys jatamansi found in different regions of Nepal and also to investigate phytochemical as well as antimicrobial activity of the sample with high yield of essential oil.Methods:The essential oils of roots of plant from five different regions were extracted by hydro-distillation and analyzed by gas chromatography-mass spectroscopy for their chemical constituents.The root samples were also subjected to hydro-alcoholic extraction and then fractionated with hexane,chloroform,n-butanol and water so as to perform phytochemical screening and antimicrobial activity.Results:The essential oil yield of sample from Jumla was found to be the highest followed by a sample from Nepalgunj,Surkhet and Kathmandu whereas that of sample from Dharan was found to be the lowest.Gas chromatography-mass spectrometer analysis of essential oil of five samples showed that“2-beta pinene”appeared dominated in three samples,namely,6VJ Nepalgunj,9VJA Jumla and 10VJ Surkhet.Similarly“alkohol aus neoclovenoxid”in 8VJ Dharan and“methoxy phenyloxime”in 13VJA Kathmandu was found to be present in the highest amount.Phytochemical screening of different fractions of sample 9VJA Jumla showed the presence of alkaloids,terpenoids,glycosides,proteins and amino acids,and carbohydrates etc.Antimicrobial susceptibility test of same fractions showed the n-butanol fraction potent against all pathogens and most affected one was Escherichia coli.Conclusions:Our study suggests that the essential oil of Nardostachys jatamansi found in Nepal contains more than 80 compounds with their quality and quantity differing from place to place.展开更多
基金Supported by National Key R&D Plan Project (2018YFC1708005)Application Foundation Project of Sichuan Provincial Department of Science and Technology (20YYJC3299)Special Fund for Basic Scientific Research Business Expenses of Central Universities of Southwest Minzu University (2020NGD01).
文摘[Objectives]To establish the quality standard of Nardostachys jatamansi Herba.[Methods]The characters and microscopical identification of N.jatamansi Herba were carried out.The contents of moisture,total ash,acid-insoluble ash and extract were determined according to the relevant methods of the Chinese Pharmacopoeia(2020 edition).Using chlorogenic acid and 3,5-O-dicaffeoylquinic acid as quality control indexes,TLC and HPLC methods were established for qualitative and quantitative determination,and HPLC fingerprints were established.[Results]The characteristics of character identification,microscopic identification and thin layer identification were obvious.The moisture content ranged from 2.7%to 7.8%,with an average value of 5.4%.The total ash content ranged from 6.7%to 16.2%,with an average of 11.0%.The acid-insoluble ash content ranged from 0.7%to 8.5%,with an average of 3.6%.Extractives content ranged from 20.9%to 34.4%,with an average of 29.7%.Chlorogenic acid content was between 0.45%and 1.30%,with an average value of 0.77%.The content of 3,5-O-dicaffeoylquinic acid ranged from 0.18%to 0.58%,with an average of 0.31%.The similarity of each batch was between 0.930 and 0.994,indicating that the quality of medicinal materials from different producing areas was stable.[Conclusions]The quality standard of N.jatamansi Herba was established,which could provide quality control basis for rational,comprehensive and efficient utilization of N.jatamansi DC.resources and clinical use.
文摘Objectives:To gather updated information on the traditional uses,phytochemistry,and pharmacological activities of Valeriana jatamansi Jones.Background:V.jatamansi is indigenous to the Himalayas immensely used as traditional folk remedy.It contains a variety of secondary metabolites that give it a high medicinal and therapeutic values.For the purpose of collecting relevant information on V.jatamansi,a comprehensive literature search was conducted.Based on ethnobotanical sources and historical records,traditional uses were compiled.Scientific articles and databases were consulted for phytochemical data.In order to assess the plant’s therapeutic properties,pharmacological studies were reviewed.Summary:The botanical is known for its ethnobotanical uses ranging from sedative and anxiolytic effects to treating insomnia,epilepsy,and gastrointestinal disorders.Indigenous healing practices rely heavily on its traditional uses.Based on the phytochemical analysis,it contains a diverse array of bioactive compounds,including sesquiterpenoids and iridoids.Valerenic acid and jatamansinol,among other compounds,contribute to its therapeutic potential.A broad spectrum of pharmacological activities is found including anxiety-relieving,sedative,anti-inflammatory,neuroprotective,and antimicrobial effects.Outlook:Based on the evidence supporting ethnomedicinal uses of V.jatamansi,its immense biopotential and multiple pharmacological roles,standard clinical trials are required to evaluate its therapeutic potential.
基金Project of Sichuan Provincial Traditional Chinese Medicine Administration,No.200674Science Foundation of Southwest Jiaotong University,No.2006A10+1 种基金"Key New Drug Innovation" National Science and Technology Major Projects During Eleventh Five-Year Plan,No.2009ZX09103-370Chengdu Science and Technology Major Projects During Eleventh Five-Year Plan,No.09GGZD060SF-012
文摘BACKGROUND: Hypothalamus-pituitary-adrenal (HPA) axis dysfunction has been closely linked to anxiety. Previous studies have shown that Valeriana jatamansi Jones extract exhibits clear anxiolytic effects, but it is unclear about the mechanism underlying regulation of the HPA axis dysfunction in these anxiolytic effects. OBJECTIVE: To observe the effects of Valeriana jatamansi Jones (Zhizhu Xiang) extract on HPA axis function in a rat model of anxiety, and to compare these effects with positive control estazolam. DESIGN, TIME AND SETTING: Randomized, controlled, animal experiment was performed at Chengdu University of Traditional Chinese Medicine, China, between February and September in 2006. MATERIALS: Estazolam was purchased from Shanghai Jiufu Pharmaceutical, China; Valeriana jatamansiJones was purchased from the Lotus Pond Market for Chinese Herbal Medicine in Chengdu. It consisted of iridoids and flavonoid components. METHODS: A total of 72 Sprague Dawley rats, aged 2 months, were randomly assigned to 6 groups low-, medium-, and high-dose Valerianajatamansi Jones groups intragastrically injected with 0.3, 0.6, and 0.9 g/kg per day Valerianajatamansi Jones extract, respectively; estazolam group intragastrically injected with 1.5 mg/kg per day estazolam; model and normal groups administered 5 mL physiological saline. Anxiety was established in all groups, except the normal group, through the use of elevated plus-maze test at 7 days following drug administration. MAIN OUTCOME MEASURES: Blood β-endorphin and corticosterone levels were determined using enzyme-linked immunosorbent assay following treatment with ValerianajatamansiJones extract. Expressions of HPA axis-related genes were measured by cDNA microarray. RESULTS: Blood β-endorphin and corticosterone levels were significantly greater in the model group than in the normal group. Compared with the model group, levels decreased with Valeriana jatamansi Jones extract or estazolam treatment, particularly in the low-dose Valeriana jatamansi Jones group (P〈 0.01). cDNA microarray results demonstrated that corticotropin-releasing hormone and Orexin, which are associated with HPA axis function, were differentially expressed; expression increased in the model group, but decreased in rats treated with Valerianajatamansi Jones extract. CONCLUSION: Valerianajatamansi Jones extract plays a role in regulating HPA axis function in a rat model of anxiety, and this effect was superior to estazolam.
基金Supported by Grant from the Ministry of Science and Technology/Korea Science and Engineering Foundation through the Diabetes Research Center at Chonbuk National University, R13-2008-005-0000-0a Research Fund of Chonbuk National University in 2009 (to Park BH)
文摘AIM: To investigate the anti-diabetogenic mechanism of Nardostachys jatamansi extract (NJE). METHODS: Mice were injected with streptozotocin viaa tail vein to induce diabetes. Rat insulinoma RINm5F cells and isolated rat islets were treated with interleukin1β and interferon-γ to induce cytotoxicity. RESULTS: Treatment of mice with streptozotocin resulted in hyperglycemia and hypoinsulinemia, which was conf irmed by immunohistochemical staining of the islets. The diabetogenic effects of streptozotocin were completely abolished when mice were pretreated with NJE. Inhibition of streptozotocin-induced hyperglycemia by NJE was mediated by suppression of nuclear factor (NF)-κB activation. In addition, NJE protected against cytokine-mediated cytotoxicity. Incubation of RINm5F cells and islets with NJE resulted in a signif icant reduction in cytokine-induced NF-κB activation and downstream events, inducible nitric oxide synthase expression and nitric oxide production. The protective effect of NJE was further demonstrated by the normal insulin secretion of cytokine-treated islets in response to glucose. CONCLUSION: NJE provided resistance to pancreatic β-cell damage from cytokine or streptozotocin treatment. The β-cell protective effect of NJE is mediated by suppressing NF-κB activation.
文摘Micropropagation of Valeriana jatamansi Jones by using small segments of rhizome on full strength MS medium having various concentrations and combinations of auxin Naphthaleneacetic acid (NAA) and cytokinin Benzylaminopurine (BAP) was conducted. The highest mean shoot length (3.71 cm) was achieved when media was fortified with BAP 2 mg/L in combination with NAA 1 mg/L. The highest mean leaf number i.e. 6.00 was observed when BAP was used alone at 2 mg/L. Average root length (0.77 cm) was recorded when BAP 1.5 mg/L along with NAA 0.5 mg/L was used. Maximum mean root numbers 2.57 were obtained when BAP and NAA were used at equal concentrations i.e. 1.5 mg/L. Observed data demonstrated that BAP up to 1 mg/L, 1.5 mg/L and 2 mg/L promotes shoot length, leaf number and leaf growth when used along with NAA at 0 mg/L, 0.5 mg/L and 1 mg/L. However lower quantities of both NAA (0 mg/L, 0.5 mg/L) and BAP (1 mg/L and 1.5 mg/L) produced significantly higher root length of Valeriana jatamansi Jones but the higher concentrations of plant growth hormones BAP (2 mg/L, 3 mg/L) and NAA (1 mg/L, 1.5 mg/L) were found unfavorable for increase in root length but the root number increases at higher concentration of NAA (1 mg/L and 1.5 mg/L).
基金Supported by the Applied Basic Research Project in Sichuan(2018)National Science and Technology Support Program(2015BAC05B02)Innovative Research Projects of Graduate Students in Southwest Minzu University in 2017(CX2017SZ085)
文摘[Objectives] Volatile oil components of traditional drug use site " root and rhizome" of N. jatamansi and herb were identified and contrasted,which aimed to provide the basis for rationally using wild N. jatamansi resource. [Methods]Volatile oil components from different sites of N. jatamansi were identified and isolated by GC-MS. [Results] There were 56 kinds of volatile oil components from different sites of N. jatamansi,in which 39 components from herb of N. jatamansi,39 components from root and rhizome of N. jatamansi,and there were 22 common components. But 1 component in higher concentration had obvious difference. [Conclusions] The herb of N. jatamansi could not completely replace " root and rhizome" of N. jatamansi as the medicine,which was consistent with prior detection result of each physicochemical index from different sites of N. jatamansi. The research could provide the reference for making quality standard of N. jatamansi medicine and rational basis for its further research and development.
基金Supported by Karst Center Project of National Natural Science Foundation of China(U1812403-4-4)High-level Innovative Talents Project in Guizhou Province of Guizhou Provincial Department of Science and Technology[QianKeHeRenCai(2015)4029]+2 种基金Science and Technology Innovation Team for Activity Research of Characteristic Natural Medicine Resources in Guizhou Province[QianKeHeRenCaiTuanDui(2015)4025]Major Project of National Social Science Fund(16ZDA238)Pharmaceutical International Science and Technology Cooperation Base of Guizhou Medical University[QianKeHePingTaiRenCai(2017)5802].
文摘[Objectives]To investigate the inhibitory effect and possible mechanism of essential oil from Valerianae Jatamansi Rhizoma et Radix on microglia activation induced by lipopolysaccharide(LPS).[Methods]The LPS-induced microglia activation model was established and treated with different doses of essential oil from Valerianae Jatamansi Rhizoma et Radix.MTT assay was used to detect cell viability,ELISA to detect IL-6 secretion,RT-PCR to detect mRNA expression levels of IL-6,IL-1β,NF-κB,and IκBα,Western blotting to detect the protein expression of IL-6,IL-1β,NF-κB,IκBα,and their phosphorylated products.[Results]Compared with the normal control group,the model group showed increased IL-6 content(P<0.01),upregulated mRNA and protein levels of IL-6,IL-1β,and NF-κB(P<0.01),and elevated ratio of P-IκBα/IκBα(P<0.05).Compared with the model group,4 and 2μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix reduced the content of IL-6(P<0.05),while 4,2,and 1μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix down-regulated the mRNA and protein levels of IL-6,IL-1β,and NF-κB to varying degrees(P<0.05 or P<0.01),up-regulate the mRNA expression of IκBα(P<0.05 or P<0.01),and decreased the ratio of P-IκBα/IκBα(P<0.05 or P<0.01).[Conclusions]Essential oil from Valerianae Jatamansi Rhizoma et Radix can inhibit LPS-induced microglia activation,and its mechanism may be related to the inhibition of the NF-κB/IκBαsignaling pathway.
文摘Objective:To find out the antibacterial activity of Valeriana jatamansi(V.jatamansi)rhizomes against the extended-spectrumβ-lactamases(ESBLs)producing isolates of Enterobacteriaceae family.Methods:Confirmation of ESBLs producing Escherichia coli,Enterobacter aerogenes,Klebsiella pneumoniae and Hafnia alvei isolated from urinary tract infections was performed by double disc diffusion assay.Antimicrobial susceptibility of all ESBLs producing isolates was determined by disc diffusion method following guidelines of Clinical and Laboratory Standards Institute.Successive extraction of rhizomes of V.jatamansi was performed with hexane,chloroform and methanol using Soxhelt apparatus.These extracts were tested against the ESBLs producing isolates using well diffusion method.Results:Hexane extract showed significant results as compared to chloroform and methanol extracts with the maximum zone of inhibition(21 mm)while ciprofloxacin and amikacin were used as standard drugs.Conclusions:Findings of the study suggested that hexane extract of V.jatamansi can be used in combination with other antibiotics as alternative treatment for urinary tract infections caused by ESBLs producing strains of Enterobacteriaceae.
基金Supported by Royal College of Pharmacy and Health Sciences Berhampur(Grant No-RCPHS/PH-09).
文摘Objective:To evaluate the anti-inflammatory effect of Nardostachys jatamansi(N.jatamansi)rhizome against acute,subacute and chronic models of inflammation in experimental animals.Methods:N.jatamansi rhizome extract(150 and 300 mg/kg,p.o.)and the reference drugs phenylbutazone(100 mg/kg,p.o.)and acetylsalicylic acid(300 mg/kg,p.o.)were evaluated using models for inflammation(autacoids induced hind paw oedema,formaldehyde induced hind paw oedema,carrageenin-induced paw oedema,cotton pellet granuloma and subcutaneous air pouch model).Results:In acute inflammation as produced by carrageenin 29.06%and 55.81%,by histamine 25.0%and 39.28%,by 5-hydroxytryptamine 21.37%and 36.95%and by prostaglandin E2-induced hind paw oedema 31.03%and 44.82%protection was observed.While in subacute anti-inflammatory models using formaldehyde-induced hind paw oedema(after 1.5 h)13.88%and 33.33%and in chronic anti-inflammatory model using cotton pellet granuloma 7.4%and 17.58%protection from inflammation was observed.N.jatamansi rhizome extract also inhibited the inflammatory mediators(nitric oxide by 12.81%and 38.41%,by prostaglandin E212.58%and 47.82%while by TNF-α13.51%and 41.89%)produced in the pouch.Conclusions:The results of this study strongly indicate the protective effect of N.jatamansi rhizome extract against acute,subacute and chronic models of inflammation,which may be attributed to its anti-inflammatory potential.
文摘Objective:To study chemical constituents of essential oil of the roots of Nardostachys jatamansi found in different regions of Nepal and also to investigate phytochemical as well as antimicrobial activity of the sample with high yield of essential oil.Methods:The essential oils of roots of plant from five different regions were extracted by hydro-distillation and analyzed by gas chromatography-mass spectroscopy for their chemical constituents.The root samples were also subjected to hydro-alcoholic extraction and then fractionated with hexane,chloroform,n-butanol and water so as to perform phytochemical screening and antimicrobial activity.Results:The essential oil yield of sample from Jumla was found to be the highest followed by a sample from Nepalgunj,Surkhet and Kathmandu whereas that of sample from Dharan was found to be the lowest.Gas chromatography-mass spectrometer analysis of essential oil of five samples showed that“2-beta pinene”appeared dominated in three samples,namely,6VJ Nepalgunj,9VJA Jumla and 10VJ Surkhet.Similarly“alkohol aus neoclovenoxid”in 8VJ Dharan and“methoxy phenyloxime”in 13VJA Kathmandu was found to be present in the highest amount.Phytochemical screening of different fractions of sample 9VJA Jumla showed the presence of alkaloids,terpenoids,glycosides,proteins and amino acids,and carbohydrates etc.Antimicrobial susceptibility test of same fractions showed the n-butanol fraction potent against all pathogens and most affected one was Escherichia coli.Conclusions:Our study suggests that the essential oil of Nardostachys jatamansi found in Nepal contains more than 80 compounds with their quality and quantity differing from place to place.