LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 32944

Search options

  1. Article ; Online: Traditional rice landraces in Lei-Qiong area of South China tolerate salt stress with strong antioxidant activity.

    Hu, Yan / Huang, Yongxiang / Zhou, Shuangxi / Zhang, Yueqin / Cheng, Risheng / Guo, Jianfu / Ling, Yu

    Plant signaling & behavior

    2020  Volume 15, Issue 4, Page(s) 1740466

    Abstract: ... collected from Lei-Qiong area of South China and investigate their physiological performances and ... we discovered that two Lei-Qiong traditional salt-tolerant rice samples showed less growth inhibition ... cellular membrane damage and stronger antioxidant enzyme system were found in the two Lei-Qiong rice samples ...

    Abstract Salt stress, causing serious loss on crop productions, is one of the most important environmental stresses throughout the world. The aim of this study is to select salt-tolerant traditional rice resources collected from Lei-Qiong area of South China and investigate their physiological performances and biochemical regulations during salt stress response, together with two well-known international varieties, Nona Bokra (salt-tolerant sample) and IR29 (salt-sensitive sample). After comprehensive analyses, we discovered that two Lei-Qiong traditional salt-tolerant rice samples showed less growth inhibition by salt stress during both germination and seedling stage, in comparison with other rice samples. Moreover, there were less chlorosis symptoms in these two kinds of salt tolerant rice under salt stress, corresponding to their better water-holding capacity. We measured malondialdehyde and proline contents, and activities of CAT and POD of seedlings treated with 100 mM NaCl for 5 dand 10 d, respectively. Interestingly, less cellular membrane damage and stronger antioxidant enzyme system were found in the two Lei-Qiong rice samples. Our study suggests that traditional rice landrace growing onshore of Lei-Qiong area in China possesses good salt-tolerant capacity, which could be attributed to their efficient antioxidant enzyme system.
    MeSH term(s) Antioxidants/metabolism ; Catalase/metabolism ; China ; Germination/drug effects ; Malondialdehyde/metabolism ; Oryza/drug effects ; Oryza/physiology ; Peroxidase/metabolism ; Plant Necrosis and Chlorosis ; Proline/metabolism ; Salt Stress/physiology ; Salt Tolerance/drug effects ; Salt Tolerance/physiology ; Seedlings/drug effects ; Seedlings/physiology ; Sodium Chloride/pharmacology ; Water/metabolism
    Chemical Substances Antioxidants ; Water (059QF0KO0R) ; Sodium Chloride (451W47IQ8X) ; Malondialdehyde (4Y8F71G49Q) ; Proline (9DLQ4CIU6V) ; Catalase (EC 1.11.1.6) ; Peroxidase (EC 1.11.1.7)
    Language English
    Publishing date 2020-03-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1559-2324
    ISSN (online) 1559-2324
    DOI 10.1080/15592324.2020.1740466
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Lei-gong-gen formula granule attenuates hyperlipidemia in rats via cGMP-PKG signaling pathway.

    Lan, Taijin / Li, Qiaofeng / Chang, Ming / Yin, Chunli / Zhu, Dan / Wu, Zheng / Li, Xiaolan / Zhang, Weiquan / Yue, Bangwen / Shi, Junlin / Yuan, Hebao / Su, Zhiheng / Guo, Hongwei

    Journal of ethnopharmacology

    2020  Volume 260, Page(s) 112989

    Abstract: Ethnopharmacological relevance: Lei-gong-gen formula granule (LFG) is a folk prescription derived ...

    Abstract Ethnopharmacological relevance: Lei-gong-gen formula granule (LFG) is a folk prescription derived from Zhuang nationality, the largest ethnic minority among the 56 nationalities in China. It is composed of three herbs, namely Centella asiatica (L.) Urb., Eclipta prostrata (L.) L., Smilax glabra Roxb. It has been widely used as health protection tea for many years to prevent cardiovascular and cerebrovascular diseases such as hyperlipidemia and hypertension.
    Aim of the study: This study validated the lipid-lowering effect of LFG in a hyperlipidemia rat model. Then we employed network pharmacology and molecular biological approach to identify the active ingredients of LFG, corresponding targets, and its anti-hyperlipidemia mechanisms.
    Materials and methods: Hyperlipidemia rat model was established by feeding male Sprague-Dawley rats with high-fat diet for two weeks. LFG (two doses of 10 and 20 g/kg) was administered orally to hyperlipidemia rat model for 4 weeks, twice per day. Serum levels of total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) were monitored in rats pre and post-treatment. Hematoxylin-eosin staining was applied to observe the pathology and lipid accumulation of liver. We then performed network pharmacology analysis to predict the ingredients, their associated targets, and hyperlipidemia associated targets. Pathway analysis with significant genes was carried out using KEGG pathway. These genes and proteins intersectioned between compound targets and hyperlipidemia targets were further verified with samples from hyperlipidemia rats treated with LFG using Real-time RT-PCR and Western Blot.
    Results: LFG attenuated hyperlipidemia in rat model, and this was characterized with decreased serum levels of TC, LDL-C, liver wet weight, and liver index. LFG alleviated the hepatic steatosis in hyperlipidemia rats. Network pharmacology analysis identified 53 bioactive ingredients from LFG formula (three herbs), which link to 765 potential targets. 53 hyperlipidemia associated genes were retrieved from public databases. There were 10 common genes between ingredients-targets and hyperlipidemia associated genes, which linked to 20 bioactive ingredients. Among these 10 genes, 3 of them were validated to be involved in LFG's anti-hyperlipidemia effect using Real-time RT-PCR, namely ADRB2 encoding beta-2 adrenergic receptor, NOS3 encoding nitric oxide synthase 3, LDLR encoding low-density lipoprotein receptor. The cGMP-PKG signaling pathway was enriched for hyperlipidemia after pharmacology network analysis with ADRB2, NOS3, and LDLR. Interestingly, expression of cGMP-dependent protein kinase (PKG) was downregulated in hyperlipidemia rat after LFG treatment. Molecular docking study further supported that ferulic acid, histidine, p-hydroxybenzoic acid, and linalool were potential active ingredients for LFG's anti-hyperlipidemia effect. LC-MS/MS analysis confirmed that ferulic acid and p-hydroxybenzoic acid were active ingredients of LFG.
    Conclusion: LFG exhibited the lipid-lowering effect, which might be attributed to downregulating ADRB2 and NOS3, and upregulating LDLR through the cGMP-PKG signaling pathway in hyperlipidemia rat. Ferulic acid and p-hydroxybenzoic acid might be the underlying active ingredients which affect the potential targets for their anti-hyperlipidemia effect.
    MeSH term(s) Animals ; Centella/chemistry ; Chromatography, Liquid ; Cyclic GMP/metabolism ; Cyclic GMP-Dependent Protein Kinases/metabolism ; Diet, High-Fat ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Drugs, Chinese Herbal/administration & dosage ; Drugs, Chinese Herbal/chemistry ; Drugs, Chinese Herbal/pharmacology ; Eclipta/chemistry ; Hyperlipidemias/drug therapy ; Hypolipidemic Agents/administration & dosage ; Hypolipidemic Agents/chemistry ; Hypolipidemic Agents/pharmacology ; Lipids/blood ; Male ; Molecular Docking Simulation ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; Smilax/chemistry ; Tandem Mass Spectrometry
    Chemical Substances Drugs, Chinese Herbal ; Hypolipidemic Agents ; Lipids ; Cyclic GMP-Dependent Protein Kinases (EC 2.7.11.12) ; Cyclic GMP (H2D2X058MU)
    Language English
    Publishing date 2020-06-08
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 134511-4
    ISSN 1872-7573 ; 0378-8741
    ISSN (online) 1872-7573
    ISSN 0378-8741
    DOI 10.1016/j.jep.2020.112989
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: A network pharmacology-based approach to explore the active ingredients and molecular mechanism of Lei-gong-gen formula granule on a spontaneously hypertensive rat model.

    Li, Qiaofeng / Lan, Taijin / He, Songhua / Chen, Weiwei / Li, Xiaolan / Zhang, Weiquan / Liu, Ying / Zhang, Qiuping / Chen, Xin / Han, Yaoyao / Su, Zhiheng / Zhu, Dan / Guo, Hongwei

    Chinese medicine

    2021  Volume 16, Issue 1, Page(s) 99

    Abstract: Background: Lei-gong-gen formula granule (LFG) is a folk prescription derived from Zhuang ...

    Abstract Background: Lei-gong-gen formula granule (LFG) is a folk prescription derived from Zhuang nationality, the largest ethnic minority among 56 nationalities in China. It consists of three herbs, namely Eclipta prostrata (L.) L., Smilax glabra Roxb, and Centella asiatica (L.) Urb. It has been widely used as health protection tea for hundreds of years to prevent hypertension in Guangxi Zhuang Autonomous Region. The purpose of this study is to validate the antihypertensive effect of LFG on the spontaneously hypertensive rat (SHR) model, and to further identify the effective components and anti-hypertension mechanism of LFG.
    Methods: The effects of LFG on blood pressure, body weight, and heart rate were investigated in vivo using the SHR model. The levels of NO, ANG II, and ET-1 in the serum were measured, and pathological changes in the heart were examined by H&E staining. The main active components of LFG, their corresponding targets, and hypertension associated pathways were discerned through network pharmacology analysis based on the Traditional Chinese Medicine Systems Pharmacology (TCMSP), Traditional Chinese Medicine Integrated Database (TCMID), and the Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Then the predicted results were further verified by molecular biology experiments such as RT-qPCR and western blot. Additionally, the potential active compounds were predicted by molecular docking technology, and the chemical constituents of LFG were analyzed and identified by UPLC-QTOF/MS technology. Finally, an in vitro assay was performed to investigate the protective effects of potential active compounds against hydrogen peroxide (H
    Results: LFG could effectively reduce blood pressure and increase serum NO content in SHR model. Histological results showed that LFG could ameliorate pathological changes such as cardiac hypertrophy and interstitial inflammation. From network pharmacology analysis, 53 candidate active compounds of LFG were collected, which linked to 765 potential targets, and 828 hypertension associated targets were retrieved, from which 12 overlapped targets both related to candidate active compounds from LFG and hypertension were screened and used as the potential targets of LFG on antihypertensive effect. The molecular biology experiments of the 12 overlapped targets showed that LFG could upregulate the mRNA and protein expressions of NOS3 and proto-oncogene tyrosine-protein kinase SRC (SRC) in the thoracic aorta. Pathway enrichment analysis showed that the PI3K-AKT signaling pathway was closely related to the expression of NOS3 and SRC. Moreover, western blot results showed that LFG significantly increased the protein expression levels of PI3K and phosphorylated AKT in SHR model, suggesting that LFG may active the PI3K-AKT signaling pathway to decrease hypertension. Molecular docking study further supported that p-hydroxybenzoic acid, cedar acid, shikimic acid, salicylic acid, nicotinic acid, linalool, and histidine can be well binding with NOS3, SRC, PI3K, and AKT. UPLC-QTOF/MS analysis confirmed that p-hydroxybenzoic acid, shikimic acid, salicylic acid, and nicotinic acid existed in LFG. Pre-treatment of HUVEC with nicotinic acid could alleviate the effect on cell viability induced by H
    Conclusions: LFG can reduce the blood pressure in SHR model, which might be attributed to increasing the NO level in serum for promoting vasodilation via upregulating SRC expression level and activating the PI3K-AKT-NOS3 signaling pathway. Nicotinic acid might be the potential compound for LFG antihypertensive effect.
    Language English
    Publishing date 2021-10-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2260322-0
    ISSN 1749-8546
    ISSN 1749-8546
    DOI 10.1186/s13020-021-00507-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: A network pharmacology-based approach to explore the active ingredients and molecular mechanism of Lei-gong-gen formula granule on a spontaneously hypertensive rat model

    Qiaofeng Li / Taijin Lan / Songhua He / Weiwei Chen / Xiaolan Li / Weiquan Zhang / Ying Liu / Qiuping Zhang / Xin Chen / Yaoyao Han / Zhiheng Su / Dan Zhu / Hongwei Guo

    Chinese Medicine, Vol 16, Iss 1, Pp 1-

    2021  Volume 21

    Abstract: Abstract Background Lei-gong-gen formula granule (LFG) is a folk prescription derived from Zhuang ...

    Abstract Abstract Background Lei-gong-gen formula granule (LFG) is a folk prescription derived from Zhuang nationality, the largest ethnic minority among 56 nationalities in China. It consists of three herbs, namely Eclipta prostrata (L.) L., Smilax glabra Roxb, and Centella asiatica (L.) Urb. It has been widely used as health protection tea for hundreds of years to prevent hypertension in Guangxi Zhuang Autonomous Region. The purpose of this study is to validate the antihypertensive effect of LFG on the spontaneously hypertensive rat (SHR) model, and to further identify the effective components and anti-hypertension mechanism of LFG. Methods The effects of LFG on blood pressure, body weight, and heart rate were investigated in vivo using the SHR model. The levels of NO, ANG II, and ET-1 in the serum were measured, and pathological changes in the heart were examined by H&E staining. The main active components of LFG, their corresponding targets, and hypertension associated pathways were discerned through network pharmacology analysis based on the Traditional Chinese Medicine Systems Pharmacology (TCMSP), Traditional Chinese Medicine Integrated Database (TCMID), and the Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Then the predicted results were further verified by molecular biology experiments such as RT-qPCR and western blot. Additionally, the potential active compounds were predicted by molecular docking technology, and the chemical constituents of LFG were analyzed and identified by UPLC-QTOF/MS technology. Finally, an in vitro assay was performed to investigate the protective effects of potential active compounds against hydrogen peroxide (H2O2) induced oxidative damage in human umbilical vein endothelial cells (HUVEC). Results LFG could effectively reduce blood pressure and increase serum NO content in SHR model. Histological results showed that LFG could ameliorate pathological changes such as cardiac hypertrophy and interstitial inflammation. From network ...
    Keywords Centella asiatica (L.) Urb ; Eclipta prostrata (L.) L ; Smilax glabra Roxb ; Hypertension ; Network pharmacology ; Other systems of medicine ; RZ201-999
    Subject code 500
    Language English
    Publishing date 2021-10-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  5. Book: Yi xue ren lei xue

    Guo, Xiujuan

    Medical anthropology

    2008  

    Title variant Medical anthropology
    Author's details Guo Xiujuan zhu
    MeSH term(s) Philosophy, Medical ; Religion and Medicine
    Keywords Taiwan
    Language Chinese
    Size 223 p. :, ill., port.
    Edition Chu ban.
    Publisher Xin wen jing kai fa chu ban gu fen you xian gong si
    Publishing place Taibei Xian Zhonghe Shi
    Document type Book
    ISBN 9789861507095 ; 9861507094
    Database Catalogue of the US National Library of Medicine (NLM)

    More links

    Kategorien

  6. Article: [Energy flux and energy balance closure of intensively managed lei bamboo forest ecosystem].

    Chen, Yun-fei / Jiang, Hong / Zhou, Guo-mo / Sun, Cheng / Chen, Jian

    Ying yong sheng tai xue bao = The journal of applied ecology

    2013  Volume 24, Issue 4, Page(s) 1063–1069

    Abstract: ... ground temperature, and precipitation in a intensively managed Lei bamboo forest ecosystem in 2011 ...

    Abstract By using open-path eddy covariance system and meteorological instruments, an observation was conducted on the sensitive heat flux, latent heat flux, net radiation, soil heat flux, air temperature, ground temperature, and precipitation in a intensively managed Lei bamboo forest ecosystem in 2011, with the diurnal and monthly variations of energy flux as well as the distribution pattern of each energy component analyzed, and the Bowen ratio and energy balance closure calculated. The yearly net radiation of the forest ecosystem was 2928. 92 MJ m-2, and the latent heat flux, sensitive heat flux, and soil heat flux were 1384.90, 927.54, and -28.27 MJ m-2, respectively. Both the daily and the monthly variations of the energy components showed a single peak curve. The sensible and latent heat fluxes were 31.7% and 47.3% of the net radiation, respectively, indicating that latent heat flux was the main form of energy loss. The Bowen ratio followed the "U"-shaped pattern, and fluctuated from 0. 285 to 2. 062, suggesting that soil was a heat source. The yearly energy balance closure of the forest ecosystem was 0. 782, and the monthly average was 0.808.
    MeSH term(s) China ; Ecosystem ; Energy Metabolism ; Plant Transpiration/physiology ; Sasa/growth & development ; Sasa/metabolism ; Temperature
    Language Chinese
    Publishing date 2013-04
    Publishing country China
    Document type English Abstract ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2881809-X
    ISSN 1001-9332
    ISSN 1001-9332
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: [Research on original editions of Lei jing (Classified canon)].

    Guo, Ling / Zhao, Hansen

    Zhonghua yi shi za zhi (Beijing, China : 1980)

    2002  Volume 32, Issue 4, Page(s) 213–215

    Abstract: ... that the portion of Su wen (Plain Questions) in Lei jing (Classified Canon) was similar to Hu's 12 - volume system ...

    Abstract After comparing with different extant editions of Nei jing (Inner Canon), the author holds that the portion of Su wen (Plain Questions) in Lei jing (Classified Canon) was similar to Hu's 12 - volume system of Gulinshutang edition, Zhao's Jujingtang edition, while its portion of Ling shu (Miraculous Pivot) is closer to the proofed edition of Zhou's and Ma Shi's annotated 9 - volume edition. After his determination of the original edition, he further made collation with comparison with other editions, and checked the original texts accordingly. Hence it was different from all other available editions.
    MeSH term(s) Books/history ; China ; History, Ancient ; History, Early Modern 1451-1600 ; History, Medieval ; History, Modern 1601- ; Medicine, Chinese Traditional/history ; Philosophy, Medical/history
    Language Chinese
    Publishing date 2002-10
    Publishing country China
    Document type English Abstract ; Historical Article ; Journal Article
    ZDB-ID 1052411-3
    ISSN 0255-7053
    ISSN 0255-7053
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Book: Lei feng shi guan jie yan de zhen duan yu te shu zhi liao

    Guo, Laiwang

    ma yi wan zhi liao lei feng shi guan jie yan ji qi yan jiu

    2013  

    Author's details zhu bian Guo Laiwang, Guo Haiming
    MeSH term(s) Arthritis, Rheumatoid ; Drugs, Chinese Herbal/therapeutic use
    Language Chinese
    Size 2, 233 pages :, illustrations
    Edition Di 2 ban.
    Document type Book
    ISBN 9787506756518 ; 750675651X
    Database Catalogue of the US National Library of Medicine (NLM)

    More links

    Kategorien

  9. Article: [Evolution of conception on apoplexoid (lei zhong feng) disorder].

    Guo, R

    Zhonghua yi shi za zhi (Beijing, China : 1980)

    1999  Volume 29, Issue 4, Page(s) 200–202

    Abstract: Viewing separately from the etiology and the disease itself, the ancient literature gave two definitions, totally different from each other, for apoplexoid disorders within the category of apoplexy, each experienced a process of starting, development and ...

    Abstract Viewing separately from the etiology and the disease itself, the ancient literature gave two definitions, totally different from each other, for apoplexoid disorders within the category of apoplexy, each experienced a process of starting, development and evolution stages. Both exerted an active promotion to the development of apoplexy.
    MeSH term(s) Cerebrovascular Disorders/history ; China ; History, Ancient ; History, Early Modern 1451-1600 ; History, Medieval ; History, Modern 1601-
    Language Chinese
    Publishing date 1999-10
    Publishing country China
    Document type English Abstract ; Historical Article ; Journal Article
    ZDB-ID 1052411-3
    ISSN 0255-7053
    ISSN 0255-7053
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: [Primary textual research on editions of Lei jing (Classified Canon)].

    Zhao, Hansen / Guo, Ling

    Zhonghua yi shi za zhi (Beijing, China : 1980)

    2002  Volume 32, Issue 1, Page(s) 26–28

    Abstract: There were not a few editions of Lei jing (Classified Canon) spread now, some of which had certain ... National Cabinet Document Library may probably be the earliest edition of Lei jing. There were two major ... types of edition of Lei jing in circulation, that is, the editions with and without the original ...

    Abstract There were not a few editions of Lei jing (Classified Canon) spread now, some of which had certain relationship in their origin. The block - printed edition of the Ming dynasty in the ministry library of Japan National Cabinet Document Library may probably be the earliest edition of Lei jing. There were two major types of edition of Lei jing in circulation, that is, the editions with and without the original contents of Nei jing (Inner Canon). The Yongquan edition of Jin Changtong and edition of Tiande Hall were the source of all the block - printed editions in China, while the Japanese block - printed edition was derived from the edition with the original contents of Nei jing of the Ming dynasty.
    MeSH term(s) Books/history ; China ; History, 20th Century ; History, 21st Century ; History, Medieval ; Japan ; Philosophy, Medical/history ; Printing/history
    Language Chinese
    Publishing date 2002-01
    Publishing country China
    Document type English Abstract ; Historical Article ; Journal Article
    ZDB-ID 1052411-3
    ISSN 0255-7053
    ISSN 0255-7053
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top