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1.
Zhongguo Zhong Yao Za Zhi ; 48(12): 3394-3403, 2023 Jun.
Artículo en Chino | MEDLINE | ID: mdl-37382022

RESUMEN

This study retrieved Croci Stigma related literature from CNKI, Wanfang, VIP, and Web of Science database, and used bibliometrics and CiteSpace 6.1.R2 software to analyze the published Croci Stigma related articles in Chinese and English from 2000 to 2022. The authors, research institutions, and keywords were visualized and analyzed, and the current status and development trend of Croci Stigma research was summarized by combining the information extraction methods. A total of 1 846 Chinese articles and 2 703 English articles were screened out and included. The results showed a generally steady increase in the number of Croci Stigma related articles. The results of the visualization analysis showed that there were more collaborations between researcher teams and major research institutions in English articles than Chinese articles. The Chinese articles was mainly published by China Pharmaceutical University, and most of the inter-institutional collaborations occurred in neighboring regions. The English articles was mainly published by Iranian institutions, and most of the cooperation occurred within the country, with less transnational cooperation. Keywords analysis showed that the research on Croci Stigma was mainly focused on chemical compositions, pharmacological effects, mechanisms, quality control, etc. It was predicted that the future research hotspots of Croci Stigma would mainly focus on pharmacological mechanism and clinical efficacy. The current research related to Croci Stigma still needs to be developed, cooperation should be strengthened, and more in-depth research should be conducted.


Asunto(s)
Crocus , Bibliometría , China , Irán
2.
Syst Rev ; 12(1): 43, 2023 03 15.
Artículo en Inglés | MEDLINE | ID: mdl-36918972

RESUMEN

BACKGROUND: Peripheral facial paralysis (PFP) results in functional disorder and social dysfunction, when it is under a severe condition at onset, long-term poor outcomes do occur. Different acupuncture methods have been reported to be potentially effective for shortening the disease course and reducing the occurrence of sequelae when they are applied at an early stage. Neuro edema is a common pathological feature in the acute phase, and many clinical studies have suggested its effect of reducing facial nerve edema. It is of value to estimate the effectiveness and safety of acupuncture treatment at the onset, and to assess the most suitable acupuncture method for the acute period. METHODS AND ANALYSIS: All the RCTs and quasi-RCTs on acupuncture therapy for patients who is during acute stage of PFP will be included. The recovery rate of facial function, the time it takes to restore facial function and the odds of sequelae occurring will be the key parts we focus on. Psychological well-being and quality of life will also be evaluated. Literature searching will be conducted until December 31th, 2022 from eight databases systematically. Two reviewers will screen the literature and extract the data independently. RevMan software will be used for data analysis, and the version 2 of the Cochrane risk-of-bias tool (RoB 2) will be used to assess the certainty of evidence. Forest plots and summary findings will be generated. If data permits, a meta-analysis will be conducted. ETHICS AND DISSEMINATION: Since this study will not involve clinical treatment of patients, ethics approval is not required. The result of this study will be submitted to a peer-reviewed journal for publication and as a proposal for clinical practice and further study on acupuncture treatment at the early stage of PFP. DISCUSSION: This review will summarize the evidence on the different type of acupuncture therapy for acute Bell's palsy and Ramsay-Hunt syndrome. We anticipate that it would be safe and effective when applied to the acute phase of PFP, and some specific suitable acupuncture methods would be found resulting from this review. SYSTEMATIC REVIEW REGISTRATION: International Prospective Register for Systematic Reviews (PROSPERO) number CRD42020205127.


Asunto(s)
Terapia por Acupuntura , Parálisis Facial , Humanos , Terapia por Acupuntura/métodos , Parálisis de Bell/diagnóstico , Parálisis de Bell/etiología , Parálisis de Bell/terapia , Progresión de la Enfermedad , Parálisis Facial/terapia , Parálisis Facial/etiología , Metaanálisis como Asunto , Calidad de Vida , Proyectos de Investigación , Literatura de Revisión como Asunto , Revisiones Sistemáticas como Asunto , Herpes Zóster Ótico/diagnóstico , Herpes Zóster Ótico/etiología , Herpes Zóster Ótico/terapia
3.
Zhongguo Zhong Yao Za Zhi ; 47(16): 4480-4488, 2022 Aug.
Artículo en Chino | MEDLINE | ID: mdl-36046878

RESUMEN

This study established a high performance liquid chromatography(HPLC) method for the simultaneous determination of verbascoside(VB) and its main metabolite caffeic acid(CA) in rat tissue samples. A low-pressure low-oxygen animal experimental chamber was used to simulate the plateau environment for establishing the hypoxic rat model. After intragastric administration of 300 mg·kg~(-1) VB, the normoxic and hypoxic rats were sacrificed for the collection of heart, liver, spleen, lung, kidney, brain, muscle, large intestine, small intestine, and stomach tissue samples at the time points of 30, 60, and 90 min. VB and CA concentrations in each tissue sample were measured by HPLC, and the distribution of VB and CA in normoxic and hypoxic rats was compared. The results showed that after intragastric administration, VB can be rapidly absorbed and distributed into various tissues including brain in both normoxic and hypoxic rats, indicating that VB can pass through the blood-brain barrier. In the gastrointestinal tract, VB was mainly distributed in small intestine, which suggested that the main absorption site of VB was small intestine. A large amount of VB was detected in muscle and lung, and only a small amount in other tissues. CA was detected in other tissues except brain, heart, and muscle. Small intestine had the most abundant CA, followed by stomach, large intestine, and kidney, and only a small amount of CA was detected in the liver, spleen, and lung(<50 ng·mL~(-1)). The results indicated that VB may be mainly absorbed and metabolized in the gastrointestinal tract to produce CA and was possibly excreted through kidney. Compared with normoxic rats, hypoxic rats had reduced and slow distribution of VB and increased ratio of VB concentration in tissue to plasma, which implied that the relative proportion of VB from systemic circulation to tissues was increased in hypoxic rats. This study provides a basis for the application of VB in anti-hypoxia therapy and for the formulation of anti-hypoxia dosing regimens.


Asunto(s)
Glucósidos , Fenoles , Animales , Cromatografía Líquida de Alta Presión , Hipoxia , Polifenoles , Ratas
4.
J Tradit Chin Med ; 42(1): 58-64, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35322633

RESUMEN

OBJECTIVE: To investigate the effect of aqueous extract of Astragalus membranaceus on cognitive ability of rats living at high altitude. METHODS: Rats were exposed to a simulated highaltitude hypobaric hypoxia chamber. The behavior of rats was tested by eight-arm maze. The contents of malondialdehyde (MDA), glutathione (GSH), reactive oxygen species (ROS) and activity of total superoxide dismutase (T-SOD) in hippocampus were measured. The expressions of mammalian target of rapamycin (mTOR) and cleaved capase-3 in hippocampus were determined by reverse transcription-polymerase chain reaction and Western blot. RESULTS: The behavioral cognitive ability of the hypoxic control group was significantly lower than that of the normoxic control group. Under hypoxic environment, after the administration of aqueous extract of Astragalus membranaceus, the behavioral cognitive ability of rats was significantly improved. In hippocampal tissue, the content of MDA and ROS were significantly decreased, while the content of GSH and activity of T-SOD in hippocampus were significantly increased. The mRNA expression of mTOR and P70S6K and the protein expression of p-mTOR were significantly increased; the mRNA expression of 4E-binding protein 1 (4E-BP1) and the protein expression of phosphorylated-4E-BP1 (p-4EBP1) and cleaved capase-3 were significantly decreased. CONCLUSION: When the rats are exposed to high altitude hypoxia, the behavioral cognitive ability could be significantly reduced. Aqueous extract of Astragalus membranaceus can significantly improve cognitive function in rats under hypoxia. The potential mechanism is related to improving oxidative stress, reducing the accumulation of free radicals and metabolites, and activating mTOR signaling pathway.


Asunto(s)
Altitud , Astragalus propinquus , Animales , Astragalus propinquus/metabolismo , Cognición , Hipocampo , Humanos , Malondialdehído/metabolismo , Mamíferos/metabolismo , Ratas
5.
Zhongguo Zhong Yao Za Zhi ; 46(7): 1803-1812, 2021 Apr.
Artículo en Chino | MEDLINE | ID: mdl-33982485

RESUMEN

The aim of this paper was to explore the key genes and pathogenesis of ischemic stroke(IS) by bioinformatics, and predict the potential traditional Chinese medicines for IS. Based on the gene-chip raw data set of GSE22255 from National Center of Biotechnology Information(NCBI), the article enrolled in 20 patients with ischemic stroke and 20 sex-and age-matched controls, and differentially expressed genes(DEGs) were screened based on R language software. The DAVID tool and R language software were used to perform gene ontology(GO) biological process enrichment analysis and Kyoto encyclopedia of genes and gnomes(KEGG) pathway enrichment analysis. The DEGs were imported into STRING to construct a protein-protein interaction network, and the Molecular Complexity Module(MCODE) plug-in of Cytoscape software was used to visualize and analyze the key functional modules. Moreover, the core genes and the medical ontology information retrieval platform(Coremine Medical) were mapped to each other to screen the traditional Chinese medicines and construct drug-active ingredient-target network. Compared with healthy controls, 14 DEGs were obtained, of which 12 genes were up-regulated and 2 genes were down-regulated. DEGs were mainly involved in immune response, inflammatory process, signal transduction, and cell proliferation regulation. The interleukin-17(IL-17), nuclear factor kappaB(NF-κB), tumor necrosis factor(TNF), nucleotide binding oligomerization domain(NOD)-like receptor and other signaling pathways were involved in KEGG pathway enrichment analysis. The key modules of the DEGs-encoding protein interaction network mainly focused on 7 genes of TNF, JUN, recombinant immediate early response 3(IER3), recombinant early growth response protein 1(EGR1), prostaglandin-endoperoxide synthase 2(PTGS2), C-X-C motif chemokine ligand 8(CXCL8) and C-X-C motif chemokine ligand 2(CXCL2), which were involved in biological processes widely such as neuroinflammation and immunity. TNF and JUN were the key nodes in this module, which might become potential biological markers for diagnosis and prognosis evaluation of IS. The potential traditional Chinese medicines for the treatment of IS includes Salviae Miltiorrhizae Radix et Rhizoma, Croci Stigma, Scutellariae Radix, and Cannabis Fructus. The occurrence of stroke was the result of multiple factors. Dysregulation of genes and pathways related to immune regulation and inflammation may be the key link for the development of IS. This study provided research direction and theoretical basis for further exploring the mechanism of action of traditional Chinese medicine in the treatment of IS and searching for potential drug targets.


Asunto(s)
Isquemia Encefálica , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , China , Biología Computacional , Perfilación de la Expresión Génica , Humanos , Medicina Tradicional China , Accidente Cerebrovascular/tratamiento farmacológico , Accidente Cerebrovascular/genética
6.
Zhongguo Zhong Yao Za Zhi ; 46(8): 1876-1882, 2021 Apr.
Artículo en Chino | MEDLINE | ID: mdl-33982495

RESUMEN

Weeds is one of the important parts of agricultural ecosystem of Chinese materia medica. Weeds is a double-edged sword with advantages and disadvantages for the cultivated medicinal plants. In this study, we firstly analyzed the positive and negative effects of weeds on the yield and quality of Chinese materia medica. We then explored the possible mechanisms for the weeds' positive effects from the aspects of interspecific relationship, soil microecological environment, light environment, natural control of pests and so on. We also summarized three basic principles of weed control, that is, "making medicinal plants and weeds coexist harmoniously, achieving the overall optimum growth of medicinal plants", "prevention first, integrated control" and "preserving beneficial weeds and increasing their beneficial effects, removing harmful weeds and control their adverse effects". Finally, we introduced several common weed ecological control technology in field of the cultivated medicinal plants in China, including technology of controlling weeds by no-tillage, stral mulch, rotation, alternative herbs, competitive crops, and allelopathy. This study is aimed to apply the ecology theory to guide weed management and control, so as to achieve the goal of advantages promotion and disadvantages elimination of weeds to cultivated medicinal plants, making weeds into treasure and to promote the sustainable and healthy development of Chinese medicinal materials production and the protection of weed diversity.


Asunto(s)
Materia Medica , Plantas Medicinales , Agricultura , China , Ecosistema
7.
Front Pharmacol ; 12: 745683, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-35095483

RESUMEN

Crocetin is an aglycone of crocin naturally occurring in saffron and produced in biological systems by hydrolysis of crocin as a bioactive metabolite. It is known to exist in several medicinal plants, the desiccative ripe fruit of the cape jasmine belonging to the Rubiaceae family, and stigmas of the saffron plant of the Iridaceae family. According to modern pharmacological investigations, crocetin possesses cardioprotective, hepatoprotective, neuroprotective, antidepressant, antiviral, anticancer, atherosclerotic, antidiabetic, and memory-enhancing properties. Although poor bioavailability hinders therapeutic applications, derivatization and formulation preparation technologies have broadened the application prospects for crocetin. To promote the research and development of crocetin, we summarized the distribution, preparation and production, total synthesis and derivatization technology, pharmacological activity, pharmacokinetics, drug safety, drug formulations, and preparation of crocetin.

8.
Eur J Med Chem ; 209: 112563, 2021 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-33038797

RESUMEN

Phenylethanoid glycosides (PhGs) are compounds made of phenylethyl alcohol, caffeic acid and glycosyl moieties. The first published references about phenylethanoid glycosides concerned the isolation of echinacoside from Echinaceu ungustifolia (Asteraceae) in 1950 and verbascoside from Verbascum sinuatum (Scrophulariaceae) in 1963. Over the past 60 years, many compounds with these structural characteristics have been isolated from natural sources, and most of these compounds possess significant bioactivities, including antibacterial, antitumor, antiviral, anti-inflammatory, neuro-protective, antioxidant, hepatoprotective, and immunomodulatory activities, among others. In this review, we will summarize the phenylethanoid glycosides described in recent papers and list all the compounds that have been isolated over the past few decades. We will also attempt to present and assess recent studies about the separation, extraction, determination, and pharmacological activity of the excellent natural components, phenylethanoid glycosides.


Asunto(s)
Glicósidos/química , Glicósidos/farmacología , Extractos Vegetales/química , Extractos Vegetales/farmacología , Animales , Asteraceae/química , Descubrimiento de Drogas , Humanos , Alcohol Feniletílico/química , Alcohol Feniletílico/farmacología , Plantas/química , Scrophulariaceae/química
9.
Zhongguo Zhong Yao Za Zhi ; 45(10): 2368-2373, 2020 May.
Artículo en Chino | MEDLINE | ID: mdl-32495594

RESUMEN

Wild Angelica sinensis is almost endangered, studying the biological characteristics of wild A. sinensis seeds is helpful for varietal improvement and its conservation. This paper systematically studied the morphological structure, thousand seed weight, viability, storage and other basic biological characteristics of wild A. sinensis fruits and seeds, and focused on the germination of excised embryos,the development of embryo, the effects of the temperature,light and hormones on seed germination.The study found that:①The embryos are not fully developed when harvested, the initial germination rate was low, the embryos can develop. After 15 days of low temperature storage, the embryos can develop completely and the germination rate is significantly increased. These results show that wild A. sinensis seeds have no dormancy, and the low germination rate is due to the low maturity of wild A. sinensis seeds. ②The sui-table germination temperature of wild A. sinensis is 15-25 ℃,and the optimal temperature is 20 ℃. Light does not affect the germination of A. sinensis seeds.③The applicable concentration of GA_3 can promote seeds germination, IAA and 6-BA has no significant effect on germination.④The optimum storage condition is dry storage at 4 ℃. Wild A. sinensis seeds can be stored for 1.5 years and cultivated seeds can be stored for 1 year.During the introduction and conservation, the best treatment conditions were dry storage at 4 ℃ for 30 d and soaking seeds with 200 mg·L~(-1) GA_3, the germination rate can reach 86.7%.


Asunto(s)
Angelica sinensis , Frío , Germinación , Semillas , Temperatura
10.
Zhongguo Zhong Yao Za Zhi ; 45(1): 52-58, 2020 Jan.
Artículo en Chino | MEDLINE | ID: mdl-32237410

RESUMEN

It is of great significance to carry out scientific investigation of threatened species and assess their in-situ conservation status in order to guide the conservation and management of these species within a region. In this study, we explored and assessed the biodiversity and in-situ conservation status of the threatened medicinal vascular plants(TMVPs) in central China. The results showed that there were 276 TMVPs in central China, including 18 critically endangered(CR), 77 endangered(EN), and 181 vulnerable(VU) species. Of which, 222 TMVPs were distributed in 49 national nature reserves, with an in-situ conservation rate of 80.43%. And the in-situ conservation rate of CR, EN and NR species were 83.33%, 77.92% and 81.22%, respectively. The complementary algorithm was used to select the nine national nature reserves with the highest protection and complementary contribution to the TMVPs. The cumulative protection contribution rate of these nine nature reserves was 81.98%. Fifty-four TMVPs were distributed outside of national nature reserves, while mainly distributed within 10 hotspot counties including Badong county, Hubei province, Sangzhi county, Hunan province, Jianghua Yao Autonomous county, Hunan province and so on. In general, TMVPs are well protected by the national nature reserves in central China. However, there are still some conservation gaps. It is necessary to carry out further field investigation on the species with conservation gaps and identify the gap areas, so as to provide scientific guidance for the optimization of the conservation of TMVPs in this region.


Asunto(s)
Conservación de los Recursos Naturales , Especies en Peligro de Extinción , Tracheophyta , Biodiversidad , China , Plantas Medicinales
11.
Nat Commun ; 10(1): 1981, 2019 04 30.
Artículo en Inglés | MEDLINE | ID: mdl-31040273

RESUMEN

Cardiovascular and metabolic disease (CMD) remains a main cause of premature death worldwide. Berberine (BBR), a lipid-lowering botanic compound with diversified potency against metabolic disorders, is a promising candidate for ameliorating CMD. The liver is the target of BBR so that liver-site accumulation could be important for fulfilling its therapeutic effect. In this study a rational designed micelle (CTA-Mic) consisting of α-tocopheryl hydrophobic core and on-site detachable polyethylene glycol-thiol shell is developed for effective liver deposition of BBR. The bio-distribution analysis proves that the accumulation of BBR in liver is increased by 248.8% assisted by micelles. Up-regulation of a range of energy-related genes is detectable in the HepG2 cells and in vivo. In the high fat diet-fed mice, BBR-CTA-Mic intervention remarkably improves metabolic profiles and reduces the formation of aortic arch plaque. Our results provide proof-of-concept for a liver-targeting strategy to ameliorate CMD using natural medicines facilitated by Nano-technology.


Asunto(s)
Berberina/farmacología , Hipoglucemiantes/uso terapéutico , Nanotecnología/métodos , Animales , Células CACO-2 , Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/tratamiento farmacológico , Dislipidemias/sangre , Dislipidemias/tratamiento farmacológico , Células Hep G2 , Humanos , Hipoglucemiantes/farmacología , Metabolismo de los Lípidos/efectos de los fármacos , Hígado/efectos de los fármacos , Hígado/metabolismo , Espectroscopía de Resonancia Magnética , Masculino , Enfermedades Metabólicas/sangre , Enfermedades Metabólicas/tratamiento farmacológico , Ratones , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción
12.
Zhongguo Zhong Yao Za Zhi ; 43(17): 3466-3470, 2018 Sep.
Artículo en Chino | MEDLINE | ID: mdl-30347913

RESUMEN

Rhizoma et Radix Notopterygii is a rare and endangered Chinese medicine. In the collection of Notopterygium franchetii fruits, we collected a sample of N. forrestii , which is a spurious breed. Fruits of N. franchetii and N. forrestii are very similar in morphology and can be easily confused. Until now the morphological identification of the fruits of Notopterygium has not been reported. To provide a scientific basis for the identification of N. franchetii and N. forrestii fruits, the morphology and microscopic identification were studied in this paper. In this study, stereomicroscope and paraffin sections were used to compare the morphological characteristics and microscopic characteristics of these two fruits. Our results showed that these two fruits were different in size, surface texture and the number of vertical edges on the back. These traits can be used as diagnostic characteristic of these two fruits. The difference between the number of tubing and the endosperm cell contents can be used as microscopic identification features. The above discriminative characteristics can distinguish the two fruits and provide scientific basis for the identification and germplasm evaluation of Notopterygium fruits.


Asunto(s)
Apiaceae/clasificación , Frutas/anatomía & histología , Plantas Medicinales/clasificación , Microscopía
13.
Chin J Integr Med ; 22(9): 660-5, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25967607

RESUMEN

OBJECTIVE: To investigate the effects of Hedan Tablet () on serum lipid profile, proprotein convertase subtilisin/kexin type 9 (PSCK9) and high-density lipoprotein (HDL) subfractions in patients with hyperlipidemia. METHODS: Thirty-seven patients with hyperlipidemia were randomized to treatment with Hedan Tablet 4.38 g/day as Hedan group (18 cases) or placebo (19 cases) as control group for 8 weeks. The lipid profile, PCSK9 and HDL subfractions were determined at day 0 and week 8 in both groups respectively. RESULTS: Hedan treatment for 8 weeks mildly decreased serum low-density lipoprotein cholesterol (LDL-C) levels, while no changes were found in total cholesterol (TC), triglycerides (TG) and PCSK9 concentrations. Furthermore, Hedan treatment increased the concentration of large high-density lipoprotein cholesterol (HDL-C) and the percentage of large HDL subfraction, while decreased the concentration of small HDL-C and the percentage of small HDL subfraction without changing serum HDL-C levels in patients with hyperlipidemia. CONCLUSION: Hedan treatment of 4.38 g per day for 8 weeks could confer a favorable effects on serum LDL-C concentration as well as HDL subfractions.


Asunto(s)
Medicamentos Herbarios Chinos/uso terapéutico , Hiperlipidemias/tratamiento farmacológico , Hiperlipidemias/enzimología , Lipoproteínas HDL/sangre , Proproteína Convertasa 9/metabolismo , Femenino , Humanos , Hiperlipidemias/sangre , Masculino , Persona de Mediana Edad , Fracciones Subcelulares/metabolismo
14.
Zhongguo Zhong Yao Za Zhi ; 40(7): 1271-3, 2015 Apr.
Artículo en Chino | MEDLINE | ID: mdl-26281544

RESUMEN

Astragalus adsurgens seed is one of the most common adulterants of Astragali Complanati Semen in the market, whose morphological characteristics are very similar with A. complanatus seeds (Astragali Complanati Semen). Many identification methods have been reported, such as morphological identification, fluorescence method, ultraviolet spectrophotometry, TLC, HPLC, protein electrophoresis and so on, but there's no much about microscopic identification. In the present study, the morphological characteristics and microscopic characteristics of these two seeds were investigated, which could provide scientific evidence for the identification and classification of Astragali Complanati Semen. Our results showed that these two seeds were slightly different in the color and the appearance, but significantly different in the microstructure of the seed coat and the hilum, and the distribution of fat droplets in the cotyledon cells. So these microscopic characteristics can be applied for the identification of Astragali Complanati Semen.


Asunto(s)
Planta del Astrágalo/anatomía & histología , Microscopía/métodos , Semillas/anatomía & histología , Planta del Astrágalo/química , Color , Análisis Discriminante , Control de Calidad , Semillas/química
15.
Zhongguo Zhong Yao Za Zhi ; 39(23): 4580-2, 2014 Dec.
Artículo en Chino | MEDLINE | ID: mdl-25911805

RESUMEN

Akebia trifoliate has been reported to have many pharmacological activities and the roots, petioles and seeds are used to different symptoms. However, the structure and anatomy of its seeds was almost not reported until now. In the present study, we investigated the morphological characters of the fruit and seed, and the anatomical characters of the testa, micropyle, embryo and endosperm, which could provide evidences for the study on classification, identification and application of A. trifoliate. Our results showed that the testa of A. trifoliate consisted of an epidermic cell layer, the sclerenchyma cells layer, the parenchyma cells layer and an innermost pigment layer. At the micropylar region, the outermost epidermal cells were specialized the white caruncle-like structure and the testa included a lot of lignified tissues. Endosperm comprises two layer cells. Outermost yellowish-brown layer cells contains lots of fat droplets, and innermost white layer cells contains lots of aleurone grains and crystalloids.


Asunto(s)
Magnoliopsida/anatomía & histología , Semillas/anatomía & histología , Germinación , Magnoliopsida/crecimiento & desarrollo , Semillas/crecimiento & desarrollo
16.
Ying Yong Sheng Tai Xue Bao ; 24(9): 2511-7, 2013 Sep.
Artículo en Chino | MEDLINE | ID: mdl-24417108

RESUMEN

To investigate the endophytic bacterial diversity in the three medicinal plant species Codonopsis pilosula, Ephedra sinica, and Lamiophlomis rotata in Ganzi of Sichuan, Southwest China, the total DNA of the three species were extracted by stringent surface sterilization, and studied with length heterogeneity-PCR (LH-PCR) method. For the same plant species, their root-, stem-, and leaf LH-PCR profiles were in a high level of similarity, with little differences in band richness. However, there existed great differences in the LH-PCR profiles among different plant species. C. pilosula had the biggest band richness, followed by E. sinica, and L. rotata. In the three plant species, the endophytic bacteria with an approximately 474 bp DNA length were dominant. The endophytic bacterial diversity of the plants was negatively correlated with rhizosphere soil available phosphorus content, but positively correlated with rhizosphere soil pH. Elevation and rhizosphere soil total nitrogen content were the important environmental factors affecting the distribution of enophytic bacteria in these plant species. The information of population diversity obtained from LH-PCR could more intuitively reflect the differences of bacterial diversity among different plant species, and thus, LH-PCR would be available to be used for analyzing the endophytic bacterial diversity in medicinal plants, providing information and guidance for the further isolation of microbial resources.


Asunto(s)
Bacterias/clasificación , Biodiversidad , Codonopsis/microbiología , Endófitos/clasificación , Ephedra sinica/microbiología , Lamiaceae/microbiología , Bacterias/genética , Codonopsis/crecimiento & desarrollo , Dermatoglifia del ADN , ADN Bacteriano/genética , ADN Ribosómico/genética , Endófitos/genética , Ephedra sinica/crecimiento & desarrollo , Lamiaceae/crecimiento & desarrollo , Reacción en Cadena de la Polimerasa , Simbiosis
17.
Zhonghua Xin Xue Guan Bing Za Zhi ; 39(3): 247-53, 2011 Mar.
Artículo en Chino | MEDLINE | ID: mdl-21609531

RESUMEN

OBJECTIVE: To investigate the effects of rosuvastatin on monocrotaline (MCT)-induced pulmonary artery hypertension in rats. METHODS: Pulmonary arterial hypertension was induced by a single subcutaneous injection of monocrotaline (50 mg/kg) in rats. In the prevention protocol, 32 male Sprague-Dawley rats were randomly divided into four groups (n = 8 each): low-dose rosuvastatin prevention group (2 mg×kg(-1)×d(-1)), high-dose rosuvastatin prevention group (10 mg×kg(-1)×d(-1)), pulmonary arterial hypertension group, normal control group. Beginning on the MCT injection day, rats were treated with rosuvastatin by daily gavage for 4 weeks. Normal control group and pulmonary arterial hypertension group received vehicle by gavage. In the treatment protocol, 52 male Sprague-Dawley rats were randomly divided into four groups (n = 13 each): low-dose rosuvastatin treatment group (2 mg×kg(-1)×d(-1)), high-dose rosuvastatin treatment group (10 mg×kg(-1)×d(-1)), pulmonary arterial hypertension group, normal control group. Four weeks after MCT injection, rats were treated with rosuvastatin by daily gavage for 4 weeks. Normal control group and pulmonary arterial hypertension group received vehicle by gavage. At the end of study, survival rates, mean pulmonary arterial pressure (mPAP), wall thickness of small pulmonary artery and right ventricular hypertrophy among groups were compared. The expression levels of proliferating cell nuclear antigen (PCNA) and endothelial nitricoxide synthase (eNOS) protein in small pulmonary artery, the expression levels of Rho kinase 1(ROCK-1) and eNOS mRNA in lung tissue were also detected. RESULTS: All rats in the prevention protocol survived. Rosuvastatin treatment improved survival in the treatment protocol (58%, 75% vs.30%, P < 0.05). Rosuvastatin therapy in both preventive or treatment protocols significantly lowered mPAP [prevention protocol: (27.53 ± 3.43), (25.72 ± 1.76) vs. (36.05 ± 2.45) mm Hg (1 mm Hg = 0.133 kPa), P < 0.01; treatment protocol: (30.39 ± 3.17), (27.59 ± 1.99) vs. (40.68 ± 1.39) mm Hg, P < 0.01], reduced thickening of small pulmonary artery wall (P < 0.01) and right ventricular hypertrophy (P < 0.01). Rosuvastatin also inhibited PCNA expression of SMC (P < 0.01), restored eNOS expression of EC (P < 0.05) and inhibited ROCK-1 mRNA expressions in lung tissue (P < 0.05). CONCLUSIONS: Rosuvastatin therapy reduced mPAP in monocrotaline-induced pulmonary arterial hypertension rat model and this effect is linked with inhibition of ROCK-1 expression, inhibition of smooth muscle cell proliferation and restoration of endothelial cell functions.


Asunto(s)
Fluorobencenos/uso terapéutico , Hipertensión Pulmonar/prevención & control , Hipolipemiantes/uso terapéutico , Pirimidinas/uso terapéutico , Sulfonamidas/uso terapéutico , Animales , Proliferación Celular , Células Endoteliales/efectos de los fármacos , Hipertensión Pulmonar Primaria Familiar , Hipertensión Pulmonar/inducido químicamente , Hipertensión Pulmonar/tratamiento farmacológico , Masculino , Monocrotalina/efectos adversos , Miocitos del Músculo Liso/efectos de los fármacos , Óxido Nítrico Sintasa de Tipo III/metabolismo , Antígeno Nuclear de Célula en Proliferación/metabolismo , Ratas , Ratas Sprague-Dawley , Rosuvastatina Cálcica , Quinasas Asociadas a rho/metabolismo
18.
J Environ Sci (China) ; 19(10): 1245-51, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18062425

RESUMEN

The effects of arbuscular mycorrhizal (AM) fungus (Glomus mosseae) and phosphorus (P) addition (100 mg/kg soil) on arsenic (As) uptake by maize plants (Zea mays L.) from an As-contaminated soil were examined in a glasshouse experiment. Non-mycorrhizal and zero-P addition controls were included. Plant biomass and concentrations and uptake of As, P, and other nutrients, AM colonization, root lengths, and hyphal length densities were determined. The results indicated that addition of P significantly inhibited root colonization and development of extraradical mycelium. Root length and dry weight both increased markedly with mycorrhizal colonization under the zero-P treatments, but shoot and root biomass of AM plants was depressed by P application. AM fungal inoculation decreased shoot As concentrations when no P was added, and shoot and root As concentrations of AM plants increased 2.6 and 1.4 times with P addition, respectively. Shoot and root uptake of P, Mn, Cu, and Zn increased, but shoot Fe uptake decreased by 44.6%, with inoculation, when P was added. P addition reduced shoot P, Fe, Mn, Cu, and Zn uptake of AM plants, but increased root Fe and Mn uptake of the nonmycorrhizal ones. AM colonization therefore appeared to enhance plant tolerance to As in low P soil, and have some potential for the phytostabilization of As-contaminated soil, however, P application may introduce additional environmental risk by increasing soil As mobility.


Asunto(s)
Arsénico/metabolismo , Micorrizas/metabolismo , Fósforo/farmacología , Zea mays/microbiología , Biodegradación Ambiental/efectos de los fármacos , Concentración de Iones de Hidrógeno , Micorrizas/efectos de los fármacos , Micorrizas/crecimiento & desarrollo , Raíces de Plantas/efectos de los fármacos , Raíces de Plantas/metabolismo , Raíces de Plantas/microbiología , Microbiología del Suelo , Contaminantes del Suelo/metabolismo , Zea mays/efectos de los fármacos , Zea mays/metabolismo
19.
Zhongguo Zhen Jiu ; 27(5): 337-40, 2007 May.
Artículo en Chino | MEDLINE | ID: mdl-17645254

RESUMEN

OBJECTIVE: To search for the best therapy for simple obesity. METHODS: Eighty cases were randomly divided into 3 groups. The body acupuncture group were treated based on the syndrome of heat of stomach and intestine, syndrome of spleen deficiency and stagnation of dampness, and syndrome of spleen and kidney yang-deficiency; the auricular and body acupuncture group were treated by the syndrome treatment of body acupuncture combined with auricular point sticking; the observation group were treated by the combined auricular and body acupuncture treatment plus moving cupping on back-shu points. Body weight, BMI, body fatd, blood lipids and clinically main symptoms before and after treatment were investigated. RESULTS: The total effective rate was 69.6% in the body acupuncture group, 76.0%. in the auricular and body acupuncture group, and 90.6% treated in the observation group, with significant differences in the therapeutic effect, clinically main symptoms, external indexes of obesity and kidney ang-blood lipid metabolism between the observation group and the body acupuncture group. The various indexes in the auricular and body acupuncture group were superior to those iwere tthe body acupuncture group, with no significant differences in most indexes. CONCLUSION: Auricular and body acupuncture combined with moving cupping at back-shu points has obvious therapeutic effect on simple obesity and this is a better therapy for simple obesity.


Asunto(s)
Terapia por Acupuntura/métodos , Acupuntura Auricular/métodos , Obesidad/terapia , Puntos de Acupuntura , Adulto , LDL-Colesterol/sangre , Femenino , Humanos , Masculino , Medicina Tradicional China , Obesidad/sangre
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