Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 15 de 15
Filtrar
Más filtros

País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Pharmacol Res ; 200: 107052, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38181857

RESUMEN

BACKGROUND: The efficacy and safety of Qingda granule (QDG) in managing blood pressure (BP) among grade 1 hypertensive patients with low-moderate risk remain uncertain. METHODS: In the randomized, double-blind, double dummy, non-inferiority and multicenter trial, 552 patients with grade 1 hypertension at low-moderate risk were assigned at a ratio of 1:1 to receive either QDG or valsartan for 4 weeks, followed up by a subsequent 4 weeks. RESULTS: Post-treatment, clinic systolic/diastolic BPs (SBP/DBP) were reduced by a mean change of 9.18/4.04 mm Hg in the QDG group and 9.85/5.05 mm Hg in the valsartan group (SBP P = 0.47, DBP P = 0.16). Similarly, 24-hour, daytime and nighttime BPs were proportional in both groups (P > 0.05) after 4 weeks treatment. After discontinuing medications for 4 weeks, the mean reduction of clinic SBP/DBP were 0.29/0.57 mm Hg in the QDG group compared to -1.59/-0.48 mm Hg in the valsartan group (SBP P = 0.04, DBP P = 0.04). Simultaneously, the 24-hour SBP/DBP were reduced by 0.9/0.31 mm Hg in the QDG group and -1.66/-1.08 mm Hg in the valsartan group (SBP P = 0.006, DBP P = 0.02). And similar results were observed regarding the outcomes of daytime and nighttime BPs. There was no difference in occurrence of adverse events between two groups (P > 0.05). CONCLUSION: QDG proves to be efficacious for grade 1 hypertension at a low-to-medium risk, even after discontinuation of the medication for 4 weeks. These findings provide a promising option for managing grade 1 hypertension and suggest the potential for maintaining stable BP through intermittent administration of QDG. TRIAL REGISTRATION: ChiCTR2000033890.


Asunto(s)
Antihipertensivos , Medicamentos Herbarios Chinos , Hipertensión , Humanos , Antihipertensivos/efectos adversos , Presión Sanguínea , China , Método Doble Ciego , Tetrazoles/efectos adversos , Valsartán/efectos adversos
2.
Sci Rep ; 13(1): 17223, 2023 10 11.
Artículo en Inglés | MEDLINE | ID: mdl-37821661

RESUMEN

This study aims to investigate the effects of hyperthermia on intestinal microecology, immune function, and progression-free survival of patients with advanced unresectable lung adenocarcinoma. A total of twenty patients with lung adenocarcinoma in the study group received the advanced standard first-line treatment protocol, which included pemetrexed + cisplatin combined with sintilimab immunotherapy and hyperthermia. Additionally, twenty patients with lung adenocarcinoma in the control group received the advanced standard first-line treatment protocol, which included pemetrexed + cisplatin combined with sintilimab immunotherapy. The T-lymphocyte subpopulation and CD4/CD8 cell ratio of each sample were detected using flow cytometry. The intestinal flora was evaluated using 16S rRNA gene sequencing. The study observed the changes in the abundance, distribution, composition, and structure of fecal gut microorganisms before and after the treatment in both groups of patients. Significant differences were observed in the intestinal flora between the two groups. The patients in the study group showed improved immunity after treatment, whereas there was no significant change in the immunity of the control group before and after treatment. However, the difference in progression-free survival between the two groups was not statistically significant. Hyperthermia has a significant impact on improving the microecology of intestinal flora and the immunity of patients, but it does not have a significant effect on prolonging the progression-free survival of patients.


Asunto(s)
Adenocarcinoma del Pulmón , Hipertermia Inducida , Neoplasias Pulmonares , Humanos , Pemetrexed , Cisplatino/uso terapéutico , Neoplasias Pulmonares/genética , Supervivencia sin Progresión , ARN Ribosómico 16S , Adenocarcinoma del Pulmón/terapia , Adenocarcinoma del Pulmón/inducido químicamente , Inmunidad , Protocolos de Quimioterapia Combinada Antineoplásica
3.
Front Public Health ; 11: 1144404, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37325306

RESUMEN

Background and purpose: The findings of clinical studies exploring essential oils (EOs) for anxiety remain disputed, and no studies have yet clarified the differences in the efficacy of EOs. The purpose of the study was to directly or indirectly compare the efficacy of different types of EOs on anxiety by pooling the results of randomized controlled trials (RCTs). Methods: PubMed, Cochrane Library, Embase, Scopus, Web of Science and the Cochrane Central Register of Controlled Trials (CENTRAL) databases were searched from inception to November 2022. Only full texts of RCTs that investigated the effects of EOs on anxiety were included. The trial data were extracted and the risk of bias was assessed by two reviewers independently. Pairwise meta-analysis and network meta-analysis were performed by Stata 15.1 or R 4.1.2 software. Results: Forty-four RCTs (fifty study arms) involving 10 kinds of EOs and 3419 anxiety patients (1815 patients in EOs group and 1604 patients in control group) were included. Pairwise meta-analyses showed that EOs were effective in reducing State Anxiety Inventory scores (SAIS) [WMD = -6.63, 95% CI-8.17, -5.08] and Trait Anxiety Inventory scores (TAIS) [WMD = -4.97, 95% CI-6.73, -3.20]. Additionally, EOs could decrease systolic blood pressure (SBP) [WMD = -6.83, (95% CI -10.53, -3.12), P < 0.001] and heart rate (HR) [WMD = -3.43, (95% CI -5.51, -1.36), P < 0.001]. Network meta-analyses demonstrated that regarding the outcome of SAIS, Jasminum sambac (L.)Ait. (jasmine) was the most effective with a weighted mean difference (WMD) of-13.61 (95% CrI-24.79, -2.48). Followed by Citrus (citrus aurantium L.), which had a WMD of-9.62 (95% CrI-13.32, -5.93). Moderate effect sizes were observed for Rosa rugosa Thunb. (damask rose) (WMD = -6.78, 95% CrI-10.14, -3.49) and Lavandula angustifolia Mill. (lavender) (WMD = -5.41, 95% CrI-7.86, -2.98). Regarding the results of TAIS, citrus aurantium L. was the best ranked intervention with a WMD of-9.62 (95% CrI-15.62, -3.7). Moderate-to-large effect sizes were observed for Citrus limon (L.) Burm. F. (lemon) (WMD:-8.48; 95% CrI-16.67, -0.33) and lavender (WMD:-5.5; 95% CrI-8.7, -2.46). Conclusion: According to the comprehensive analysis, EOs are effective in reducing both state anxiety and trait anxiety, and citrus aurantium L. essential oil seems to be the most recommended type of EO for treating anxiety because of its significant effects in reducing SAIS and TAIS. Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/, identifier: CRD42022331319.


Asunto(s)
Aceites Volátiles , Humanos , Aceites Volátiles/uso terapéutico , Metaanálisis en Red , Ensayos Clínicos Controlados Aleatorios como Asunto , Trastornos de Ansiedad/tratamiento farmacológico , Ansiedad/tratamiento farmacológico
4.
J Food Sci ; 88(6): 2339-2352, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37138542

RESUMEN

Umami amino acids inhibit the bitter and astringent taste presentation of catechins, which is essential for the taste regulation of green tea. In this study, the concentration-intensity trends and taste threshold properties of major catechin monomers were investigated using an electronic tongue. The taste and chemical structure interactions between the ester-type catechins and theanine, glutamic acid (Glu), and aspartic acid (Asp) were further analyzed by in vitro simulation and analysis of their reciprocal chemical structures. The results showed that the bitterness and astringency of the major catechin monomers increased with increasing concentration, and their bitterness thresholds and their electron tongue response values were higher than those of the astringent values, while the bitterness and astringency of the ester-type catechins were higher than those of the nonester type. The three amino acids inhibited the bitterness intensity of ester catechins (epigallocatechin gallate, epicatechin gallate, and gallocatechin gallate) at different concentrations, and the effects on the astringency intensity of ester catechins were complicated. Ester catechins significantly enhanced the umami intensity of theanine, Glu, and Asp at different concentrations. Their reciprocal chemical structures showed that hydrogen bonding was the main interaction force between the three ester-type catechins and the umami amino acids, with theanine and Glu interacting more strongly with ester-type catechins than Asp, and Glu having a lower binding energy to ester-type catechins, which bonded more easily.


Asunto(s)
Catequina , , Té/química , Catequina/análisis , Aminoácidos , Nariz Electrónica , Astringentes/análisis , Ácido Glutámico
5.
Trials ; 24(1): 1, 2023 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-36588157

RESUMEN

BACKGROUND: Numerous pre-clinical studies showed that Qingda granule (QDG) was effective in treating hypertension. This study aims to evaluate the efficacy and safety of QDG in reducing blood pressure among patients with grade 1 hypertension at low-medium risk. METHODS: The study is designed as a randomized, multi-center, double-blinded, non-inferiority clinical trial. Five hundred fifty-two patients with grade 1 hypertension at low-medium risk from 13 hospitals will be recruited and randomly assigned to the QDG group (n = 276, treated with valsartan capsule simulation agent and QDG) or control group (n = 276, treated with valsartan capsule and QDG simulation agent). The treatment period will be 4 weeks and the follow-up period will last 4 weeks after treatment. Primary outcome will be a decreased value of systolic blood pressure and diastolic blood pressure after treatment. And second outcome will include the decreased value of diastolic blood pressure and systolic blood pressure at the end of follow-up, the percentage of participants achieving normal blood pressure at the end of treatment and follow-up, the Hamilton Anxiety Scale and TCM syndrome scores at the end of treatment and follow-up, and levels of hypertensive hormones at end of treatment and follow-up. DISCUSSION: This study will provide initial evidence regarding the clinical efficacy and safety of QDG in treating grade 1 hypertension at low-medium risk. TRIAL REGISTRATION: Chinese Clinical Trial Registry ChiCTR2000033890 . Registered on 15 June 2020.


Asunto(s)
Medicamentos Herbarios Chinos , Hipertensión , Humanos , Método Doble Ciego , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Medicamentos Herbarios Chinos/efectos adversos , Resultado del Tratamiento , Valsartán/efectos adversos , Ensayos Clínicos Controlados Aleatorios como Asunto , Estudios Multicéntricos como Asunto
6.
Artículo en Chino | WPRIM | ID: wpr-969942

RESUMEN

OBJECTIVE@#To observe the effect of Kaiqiao Jieyin acupuncture (acupuncture for opening orifices and relieving aphasia) combined with repetitive transcranial magnetic stimulation (rTMS) on language ability and daily life communication ability in patients with post-stroke aphasia (PSA).@*METHODS@#Fifty-six patients with PSA were randomly divided into an observation group and a control group, 28 cases in each group. Both groups received routine symptomatic treatment. The control group was treated with speech rehabilitation training and rTMS. On the basis of the treatment in the control group, the observation group was treated with Kaiqiao Jieyin acupuncture at the speech area Ⅰ, Fengchi (GB 20), Tongli (HT 5), Lianquan (CV 23), Panglianquan (Extra), etc. Panglianquan (Extra) on both sides were connected to electroacupuncture, with intermittent wave, 2 Hz in frequency. The above treatment was performed once a day for 5 consecutive days, followed by 2 days of rest for 2 weeks. The scores of western aphasia battery (WAB, including scores of spontaneous speech, auditory comprehension, repetition, naming and score of aphasia quotient [AQ]) and communication abilities in daily living (CADL) in the two groups were compared before and after treatment.@*RESULTS@#After treatment, the spontaneous speech, auditory comprehension, repetition, naming scores and AQ scores in both groups were higher than those before treatment (P<0.05), and the increase in the observation group was greater than the control group (P<0.05). The CADL scores of the two groups were higher than those before treatment (P<0.05).@*CONCLUSION@#Kaiqiao Jieyin acupuncture combined with rTMS can improve the language ability and daily life communication ability of PSA patients.


Asunto(s)
Humanos , Estimulación Magnética Transcraneal , Rehabilitación de Accidente Cerebrovascular , Resultado del Tratamiento , Afasia/terapia , Terapia por Acupuntura
7.
Drug Dev Res ; 83(4): 891-899, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35080031

RESUMEN

Verbascoside is a kind of phenylpropanoid glycoside derived from multiple medicinal plants, exerting anti-tumor effects in diverse human malignancies. However, the function of Verbascoside on the radiosensitivity of hepatocellular carcinoma (HCC) cells remains unknown. Human Huh7 and HepG2 cell lines were treated with Verbascosideis, and cell viability was detected with cell counting kit-8 (CCK-8) assay. Quantitative real-time polymerase chain reaction (qRT-PCR) was applied to detect miR-101-3p expression, and Western blot was used to quantify the expression of WEE1 G2 checkpoint kinase (WEE1). Then, CCK-8 and flow cytometry assays were used to detect the proliferation and apoptosis of HCC cells after Verbascoside and X-ray combined treatment, and the expressions of WEE1 and apoptosis-related proteins Bax and Bcl-2 were detected by Western blot. Verbascoside could improve the radiosensitivity of HCC cells in a dose-dependent manner. Verbascoside increased the expression of miR-101-3p but reduced WEE1 expression in HCC cells. Additionally, WEE1 was identified as a target of miR-101-3p. MiR-101-3p inhibition or WEE1 overexpression could reverse the effect of Verbascoside on the viability and apoptosis of HCC cells. Verbascoside increases the radiosensitivity of hepatocellular carcinoma cells via modulating miR-101-3p/WEE1 axis.


Asunto(s)
Carcinoma Hepatocelular , Glucósidos , Neoplasias Hepáticas , MicroARNs , Fenoles , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/radioterapia , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/metabolismo , Línea Celular Tumoral , Proliferación Celular , Regulación Neoplásica de la Expresión Génica , Glucósidos/farmacología , Células Hep G2 , Humanos , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/radioterapia , MicroARNs/genética , Fenoles/farmacología , Proteínas Tirosina Quinasas/genética , Proteínas Tirosina Quinasas/metabolismo , Tolerancia a Radiación
8.
Medicine (Baltimore) ; 100(41): e27395, 2021 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-34731110

RESUMEN

BACKGROUND: The effectiveness of traditional Chinese medicine (TCM) in assisting the reduction of the toxic effects of chemotherapy and enhancing the efficacy of chemotherapy is gradually being recognized. Traditional Chinese medicine injection (TCMJ) has been widely used as a promising adjuvant drug in the treatment of ovarian carcinoma. However, the exact clinical efficacy and safety of TCMJ have not been well studied due to the wide variety. This study aims to conduct a network meta-analysis of randomized controlled trials (RCTs) about comparing the effect of TCMJ combined with chemotherapy and chemotherapy alone on the treatment of ovarian cancer, thus summarizing the effects of TCMJ on the prognosis, quality of life and immune function of ovarian carcinoma patients, and providing a reference for developing therapeutic regimens for ovarian carcinoma. METHODS: Randomized controlled trials reporting the effect of TCMJ combined with chemotherapy and chemotherapy alone on the prognosis, quality of life and immune function in patients with ovarian carcinoma published before September 2021 will be screened out from online databases like PubMed, Web of Science, Scopus, Cochrane Library, Embase, China Scientific Journal Database, China National Knowledge Infrastructure, Chinese Biomedical Literature Database, and Wanfang Database. Subsequently, 2 researchers will be independently responsible for literature screening, data extraction and assessment of their quality. All data will be processed by R.4.1.0. RESULTS: The results of this meta-analysis will be submitted to a peer-reviewed journal for publication. CONCLUSIONS: Evidence-based medicine supports the efficacy and safety of TCMJ combined with chemotherapy for the treatment of ovarian carcinoma, which is better than that of chemotherapy alone. ETHICS AND DISSEMINATION: Ethical approval was not required for this study. The systematic review will be published in a peer-reviewed journal, presented at conferences, and shared on social media platforms. OSF REGISTRATION NUMBER: DOI 10.17605/OSF.IO/P93VJ.


Asunto(s)
Carcinoma Epitelial de Ovario/tratamiento farmacológico , Medicamentos Herbarios Chinos/administración & dosificación , Neoplasias Ováricas/tratamiento farmacológico , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Femenino , Humanos , Inyecciones , Medicina Tradicional China , Metaanálisis en Red , Calidad de Vida , Revisiones Sistemáticas como Asunto
9.
Artículo en Chino | WPRIM | ID: wpr-826704

RESUMEN

OBJECTIVE@#To observe the therapeutic effect of acupuncture on cancer-related fatigue (CRF) and to explore its possible mechanism.@*METHODS@#A total of 80 patients with CRF were randomized into an observation group and a control group, and finally 67 patients completed the trial (36 patients in the observation group, 31 patients in the control group). Patients in the control group were treated with conventional chemoradiotherapy and symptomatic treatment, while no particular anti-fatigue intervention was adopted. On the basis of treatment in the control group, acupuncture was applied at Baihui (GV 20), Guanyuan (CV 4), Qihai (CV 6), Fengchi (GB 20), Zusanli (ST 36), Sanyinjiao (SP 6) in the observation group, once a day, 5 times as one course, with 2 days interval between each course, totally 4 courses were required. Before and after treatment, scores of functional assessment of cancer therapy-fatigue (FACT-F) in Chinese and McGill quality of life questionnaire (MQOL), serum levels of C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α(TNF-α) and soluble TNF receptor-1 (sTNF-R1) were observed in the two groups.@*RESULTS@#①Compared before treatment, the FACT-F score was decreased after treatment in the observation group (<0.05), while there was no significant difference in the control group (<0.05). The change of the FACT-F score in the observation group was larger than that in the control group (<0.05). ②In the observation group, scores of physiological and psychological dimension were decreased (<0.05), score of social support dimension was increased after the treatment (<0.05). The score changes of physiological, psychological and social support dimension in the observation group were larger than those in the control group (all <0.05). ③After treatment, the serum levels of IL-6, TNF-α and sTNF-R1 were decreased in the observation group (<0.05), while the serum levels of CPR and IL-6 were increased in the control group (<0.05). The serum levels of CPR, IL-6 and TNF-α in the observation were lower than those in the control group (<0.05).@*CONCLUSION@#①Acupuncture can improve the related symptoms of depression, weakness and headache in patients with CRF, strengthen their cognition of the support from society and family, and boost the confidence in curing the disease. ②Acupuncture can effectively down-regulate serum levels of the relative inflammatory factors, which may be its possible mechanism on treating CRF.


Asunto(s)
Humanos , Puntos de Acupuntura , Terapia por Acupuntura , Biomarcadores , Sangre , Proteína C-Reactiva , Fatiga , Terapéutica , Interleucina-6 , Sangre , Neoplasias , Terapéutica , Calidad de Vida , Receptores Tipo I de Factores de Necrosis Tumoral , Sangre , Factor de Necrosis Tumoral alfa , Sangre
10.
Zhongguo Zhen Jiu ; 34(7): 701-4, 2014 Jul.
Artículo en Chino | MEDLINE | ID: mdl-25233665

RESUMEN

Jin's three-needle technique is named after Professor JIN Rui. The connotation of Jin's three-needle technique is summarized by his followers through long-term teaching and clinical practice. His principle and method of point combination are based on syndrome differentiation of acupuncture. And his unique needling technique and treating principle of mental tranquilization also play an important role in his clinical practice.


Asunto(s)
Terapia por Acupuntura/métodos , Terapia por Acupuntura/instrumentación , Humanos , Agujas
11.
Zhen Ci Yan Jiu ; 39(6): 466-71, 2014 Dec.
Artículo en Chino | MEDLINE | ID: mdl-25632571

RESUMEN

OBJECTIVE: To observe the effect of acupuncture therapy on 14-3-3, Bcl-2 and Bax expression levels in the cerebral cortex in neonatal rats with hypoxic-ischemic brain damage(HIBD). METHODS: Timed pregnant Sprague-Dawley rat dams were delivered either vaginally (normal group), or by C-section (sham-operation group) or by C-section with 5 min of global anoxia (anoxia group), with 8 rats in each group. The rat pups of the anoxia group were randomly divided into model group and acupuncture group (n =8). Acupuncture stimulation of "Naosanzhen" "Niesanzhen" and "Zhisanzhen" acupoints was given begin- ning from the 14th day after birth, once daily for 7 consecutive days. All rat pups were killed by decapitation on day 21 after birth, and then 14-3-3, Bcl-2 and Bax immunoactivity (expression) in the cerebral cortex were detected by immunohistochemistry. RESULTS: In comparison with the normal group, the expression level of cerebral cortical 14-3-3 was significantly decreased, and that of Bax remarkably increased in the model group (P<0. 01, P<0. 05). Compared to the model group, cortical 14-3-3 and Bcl-2 expression levels were markedly up-regulated in the acupuncture group (P<0.01, P<0.05). Compared to the normal group, cortical 14-3-3 expression level was obviously lower, but Bax expression level significantly higher in the sham-operation group (P<0. 05, P<0. 01). No significant differences were found between the model and normal groups in the expression levels of Bcl-2, and between the acupuncture and model groups in the expression levels of Bax (P>0. 05). CONCLUSION: Acupuncture intervention can increase the expression of 14-3-3 and Bcl-2 in the cerebral cortex in HIBD rats.


Asunto(s)
Proteínas 14-3-3/análisis , Terapia por Acupuntura , Corteza Cerebral/química , Hipoxia-Isquemia Encefálica/terapia , Animales , Femenino , Hipoxia-Isquemia Encefálica/metabolismo , Proteínas Proto-Oncogénicas c-bcl-2/análisis , Ratas , Ratas Sprague-Dawley , Proteína X Asociada a bcl-2/análisis
12.
Artículo en Chino | WPRIM | ID: wpr-318502

RESUMEN

Jin's three-needle technique is named after Professor JIN Rui. The connotation of Jin's three-needle technique is summarized by his followers through long-term teaching and clinical practice. His principle and method of point combination are based on syndrome differentiation of acupuncture. And his unique needling technique and treating principle of mental tranquilization also play an important role in his clinical practice.


Asunto(s)
Humanos , Terapia por Acupuntura , Métodos , Agujas
13.
Artículo en Chino | WPRIM | ID: wpr-318700

RESUMEN

Optimization of sensor array is a significant topic in the application of electronic nose (EN). Stepwise discriminant analysis and cluster analysis combining with screening of typical index were employed to optimize the original array in the classification of 100 samples from 10 kinds of traditional Chinese medicine based on alpha-FOX3000 EN. And the identification ability was evaluated by three algorithm including principle component analysis, Fisher discriminant analysis and random forest. The results showed that the identification ability of EN was improved since not only the effective information was maintained but also the redundant one was eliminated by the optimized array. The optimized method was eventually established, it was accurate and efficient. And the optimized array was built up, that is, S1, S2, S5, S6, S8, S12.


Asunto(s)
Algoritmos , Técnicas Biosensibles , Métodos , Análisis por Conglomerados , Análisis Discriminante , Medicamentos Herbarios Chinos , Clasificación , Nariz Electrónica , Medicina Tradicional China , Análisis de Componente Principal , Reproducibilidad de los Resultados , Olfato
14.
J Diabetes Complications ; 23(5): 297-303, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-18657998

RESUMEN

BACKGROUND: Low success rate of blood glucose in diabetes is an international problem. The endothelia cytotoxicity of hyperglycemia has been widely accepted. However, it has not been seen in reports of the value of concentration of high glucose beginning to produce cytotoxicity and the relationship between hyperglycemia and cytotoxicity as well as how to effectively prevent and control hyperglycemia cytotoxicity. Dan Gua prescription is an effective Chinese herb prescription for diabetic vascular complications. METHODS: Dan Gua prescription was contained in Dan Gua liquor utilized in experiments. (1) The cytotoxicity experiment of Dan Gua was carried out with M199 medium whose glucose (Glu) was 5.55 mmol/l to seek for a suitable experimental concentration of Dan Gua. (2) The human vessel endotheliocyte was cultivated for 72 h with mediums containing glucose in different concentrations (Group G1 to Group G11, Glu: 5.5 to 99.9 mmol/l, respectively), and assayed an optical density (OD) value using the 3-(4,5)-dimethylthiahiazo(-z-y1)-3,5-di-phenytetrazoliumromide method. (3) Experiment 2 was repeated. However, the medium of each group (Groups Y1 to Y11) contained Dan Gua liquor whose concentration was 1/300. RESULTS: There was a negative correlation between means of cell OD values and glucose concentrations (r=-.927, R(2)=.844), and it presented a notable linear correlation (y=0.681-0.002x). Based on the OD value of 5.5-mmol/l glucose concentration (group G1), when glucose concentration reached 22.2 mmol/l (G4), the difference in OD values has a statistical significance. OD values in Y1-Y11 were not less than that of G1. CONCLUSION: There is a notable linear correlation between the endothelial cytotoxicities of Glu and its concentrations. The spinodal point concentration of statistical significance of hyperglycemia cytotoxicity is 22.2 mmol/l; 1/300 Dan Gua can reverse the endothelia cytotoxicity in different concentrations of hyperglycemia.


Asunto(s)
Medicamentos Herbarios Chinos/farmacología , Células Endoteliales/efectos de los fármacos , Endotelio Vascular/efectos de los fármacos , Glucosa/toxicidad , Arteriosclerosis/prevención & control , Línea Celular , Supervivencia Celular/efectos de los fármacos , Medios de Cultivo/química , Complicaciones de la Diabetes/prevención & control , Relación Dosis-Respuesta a Droga , Glucosa/administración & dosificación , Humanos , Hiperglucemia/fisiopatología , Análisis de Regresión , Estadísticas no Paramétricas
15.
Artículo en Chino | WPRIM | ID: wpr-245971

RESUMEN

<p><b>OBJECTIVE</b>To prepare sustained-release microsphere containing extract of Sanguis Draconis and to measure its dissolution in vitro.</p><p><b>METHOD</b>Sustained-release microsphere was prepared with polylactic acid (PLA) as carriers using the oil-in-water (O/W) emulsion solvent evaporation method. The powder particle's characteristics of sustainded-release microsphere were evaluated comprehensively, and its dissolution characteristics in vitro were studied.</p><p><b>RESULT</b>The microsphere was round and its surface was smooth, drug-loading rate was 21.97% and the entrapment rate was 55.76%, the accumulative release percentage was 76. 71% in 16 hours.</p><p><b>CONCLUSION</b>The sustained release effect of Sanguis Draconis microspheres was formed with potentially wide applications.</p>


Asunto(s)
Arecaceae , Química , Preparaciones de Acción Retardada , Química , Medicamentos Herbarios Chinos , Química , Ácido Láctico , Química , Microesferas , Tamaño de la Partícula , Plantas Medicinales , Química , Poliésteres , Polímeros , Química , Reproducibilidad de los Resultados , Resinas de Plantas , Química , Tecnología Farmacéutica , Métodos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA