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1.
Eur Rev Med Pharmacol Sci ; 27(4): 1609-1613, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36876697

RESUMEN

OBJECTIVE: The aim of this study is to analyze the application effect of traditional Chinese medicine (TCM) comprehensive nursing in diabetic foot patients. PATIENTS AND METHODS: 230 patients with diabetic foot admitted to Third people's Hospital of Haikou from January 2019 to April 2022 were classified as two groups, which consisted of a control group (n = 95) and an experimental group (n = 135). The control group took routine nursing intervention, while the experimental group took TCM comprehensive nursing intervention. The effect of intervention was compared by inflammatory factors (B-FGF, EGF, VEGF, and PDGF), wound area, self-rated anxiety scale (SAS), and self-rated depression scale (SDS). RESULTS: After nursing, the levels of B-FGF, EGF, VEGF, and PDGF were higher in the experimental group (all p < 0.05). The total effective rate of diabetic foot recovery in the experimental group was 94.87% (74/78), higher than 87.67% (64/73) in the control group (p = 0.026). After nursing, the scores of SAS and SDS in the experimental group were lower than those in the control group (all p < 0.05). CONCLUSIONS: The application of TCM comprehensive nursing in diabetic foot patients can greatly change the levels of B-FGF, EGF, VEGF, and PDGF in wound tissue, promote the healing of ulcer surface, improve patients' anxiety and depression, and enhance the quality of life of patients.


Asunto(s)
Diabetes Mellitus , Pie Diabético , Humanos , Factor de Crecimiento Epidérmico , Medicina Tradicional China , Calidad de Vida , Factor A de Crecimiento Endotelial Vascular
2.
Zhonghua Yi Shi Za Zhi ; 50(1): 43-53, 2020 Jan 28.
Artículo en Chino | MEDLINE | ID: mdl-32564537

RESUMEN

Tang Tenghan (1900-1988), who was a famous pharmaceutical chemist in China, was born in Java, Indonesia. He received his PhD from Institute of Pharmacy, Department of Philosophy in Berlin University. After returning to China, Tang Tenghan was employed by Shandong University, National Pei Yang University, West China Union University and Tongji University, etc. He engaged in education and scientific research in Pharmacy, Chemistry and Chemical Engineering. He was one of early scholars using pharmacognosy, chemistry and pharmacology on Chinese materia medica. At the same time, he held the concurrent position in pharmaceutical factory and took charge the production of drugs. After the founding of the People's Republic of China, he organized and led the anti-chemical agent research in Academy of Military Medical Sciences. In addition, Tang Tenghan contributed to the preparation of pharmacopoeia, the compilation of textbooks and the cultivation of talents. This paper made a detailed investigation of Tang Tenghan's lifework, analyzed the contribution and significance of his work in the history of Chemistry and Pharmacy, reflected the spirit of a generation of scientists.


Asunto(s)
Química Farmacéutica/historia , Materia Medica , Medicina Militar , Academias e Institutos , China , Historia del Siglo XX , Universidades
3.
Eur Rev Med Pharmacol Sci ; 22(6): 1595-1601, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29630101

RESUMEN

OBJECTIVE: This study intended to explore the efficacy of computed tomography (CT)-guided implantation of iodine-125 (125I) seeds in the treatment of refractory malignant tumors with cancer pain and its influence on tumor markers in the serum. PATIENTS AND METHODS: 76 patients with refractory malignant tumors accompanied by cancer pain that received treatments in LongHua Hospital Shanghai University of Traditional Chinese Medicine from September 2013 to August 2014 were selected. They were divided into control group and observation group using a random number table (38 patients in each group). Patients in the control group received simple chemotherapy, while those in the observation group undergone CT-guided implantation of 125I seeds in combination with chemotherapy. Recent efficacy and 1-3-year survival rate were compared between the two groups of patients. The degree of pain relief after treatment was also compared between the two groups of patients. Electrochemiluminescence method was used to detect the concentrations of carcinoembryonic antigen (CEA), sugar chain antigen 199 (CA 199), sugar chain antigen 125 (CA 125), neuron-specific enolase (NSE) and cytokeratin-19-fragment (CYFRA21-1) in the two groups of patients before treatment, and 3 days, 7 days and 30 days after treatment. RESULTS: Recent disease control rate of the patients in the observation group was higher than that of the patients in the control group (p<0.05). The 1-3-year survival rate after surgery in the observation group was significantly higher than that in the control group (p<0.05). The total efficiency of pain control in the observation group was significantly higher than that in the control group (p<0.05). The levels of tumor markers in the two groups of patients were significantly decreased after treatment, while the reduction in the observation group was more evident than that in the control group (p<0.05). CONCLUSIONS: Our results showed that CT-guided implantation of 125I seeds is effective for the treatment of patients with refractory malignant tumors accompanied by cancer pain. It can reduce the levels of tumor markers, improve the survival rate and prolong the survival time of the patients.


Asunto(s)
Dolor en Cáncer/patología , Neoplasias/radioterapia , Radiofármacos/uso terapéutico , Adulto , Anciano , Antígenos de Neoplasias/análisis , Antineoplásicos/uso terapéutico , Antígeno Carcinoembrionario/análisis , Femenino , Humanos , Radioisótopos de Yodo/química , Queratina-19/análisis , Masculino , Persona de Mediana Edad , Neoplasias/tratamiento farmacológico , Neoplasias/mortalidad , Fosfopiruvato Hidratasa/análisis , Índice de Severidad de la Enfermedad , Tasa de Supervivencia , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
4.
Zhonghua Liu Xing Bing Xue Za Zhi ; 39(4): 394-400, 2018 Apr 10.
Artículo en Chino | MEDLINE | ID: mdl-29699025

RESUMEN

Objective: To assess the implementation and impact of programs carried out by the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases. Methods: Both sociological and epidemiological methods were used to collect qualitative and quantitative data in November and December, 2016 in order to conduct on process and outcome evaluation of the above mentioned objective. In the meantime, case study was also conducted. Results: All the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases were found well implemented across the country, with health education and health promotion, surveillance and safeguard measures in particular. A government-led and inter-sector coordination and communication mechanism had been well established, with more than 16 non-health departments actively involved. 28.7% of the residents living in the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases were aware of the key messages related to chronic diseases. Among the residents, 72.1% of them consumed vegetables and 53.6% consumed fruits daily, with another 86.9% walked at least 10 minutes per day. Over 70% of the patients with hypertension or diabetes reported that they were taken care of by the Community Health Centers, and above 50% of them were under standardized management. Residents, living in the National Demonstration Areas under higher ranking of implementation scores, were more likely to be aware of relevant knowledge on chronic disease control and prevention (OR=6.591, 95%CI: 5.188-8.373), salt reduction (OR=1.352, 95%CI: 1.151-1.589), oil reduction (OR=1.477, 95%CI: 1.249-1.746) and recommendation on physical activities (OR=1.975, 95%CI: 1.623- 2.403). Conclusion: The implementation of programs carried out by the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases had served a local platform for the control and prevention of non-communicable diseases, and thus become an important 'carrier' for chronic disease prevention and control programs in China.


Asunto(s)
Enfermedad Crónica/epidemiología , Promoción de la Salud/métodos , Enfermedades no Transmisibles/prevención & control , Evaluación de Resultado en la Atención de Salud , Vigilancia de la Población , Servicios Preventivos de Salud/organización & administración , Evaluación de Programas y Proyectos de Salud , China/epidemiología , Atención a la Salud , Promoción de la Salud/organización & administración , Humanos , Programas Nacionales de Salud , Servicios Preventivos de Salud/métodos , Salud Pública
5.
Zhonghua Liu Xing Bing Xue Za Zhi ; 39(4): 417-421, 2018 Apr 10.
Artículo en Chino | MEDLINE | ID: mdl-29699029

RESUMEN

Objective: To understand the current overall status of implementation on the National Demonstration Areas of Comprehensive Prevention and Control of Non-communicable Diseases. Methods: According to the scheme design of the questionnaires, all the National Demonstration Areas were involved in this study. For each National Demonstration Areas, eight departments were selected to complete a total of 12 questionnaires. Results: Scores related to the implementation of the National Demonstration Areas accounted for 71.8% of the total 170 points. Based on the scores gathered from this study, the 23-items-index-system that represented the status of project implementation was classified into seven categories. Categories with higher percentile scores would include: monitoring (88.0%), safeguard measures (75.0%), health education and health promotion (75.0%). Categories with lower percentile scores would include: the national health lifestyle actions (67.7%), community diagnosis (66.7%), discovery and intervention of high-risk groups (64.7%), and patient management (60.9%). There were significant differences noticed among the eastern, central and western areas on items as safeguard measures, health education/promotion, discovery and intervention of high-risk groups. In all, the implementation programs in the eastern Demonstration Areas seemed better than in the central or western regions. As for the 23 items, five of the highest scores appeared on policy support, mortality surveillance, tumor registration, reporting system on cardiovascular/cerebrovascular events, and on tobacco control, respectively. However, the lowest five scores fell on healthy diet, patient self-management program, oral hygiene, setting up the demonstration units and promotion on basic public health services, respectively. The overall scores in the eastern region was higher than that in the central or the western regions. The scores in the central and western regions showed basically the same. Conclusions: The overall status of implementation on the National Demonstration Areas was satisfactory. Future attention should be focusing on patient management as well as discovery and intervention of high-risk groups, which also presented the lowest scores, in this survey.


Asunto(s)
Enfermedad Crónica/epidemiología , Promoción de la Salud/métodos , Enfermedades no Transmisibles/prevención & control , Evaluación de Resultado en la Atención de Salud , Vigilancia de la Población , Servicios Preventivos de Salud/organización & administración , Evaluación de Programas y Proyectos de Salud , China/epidemiología , Atención a la Salud , Promoción de la Salud/organización & administración , Humanos , Programas Nacionales de Salud , Servicios Preventivos de Salud/métodos , Salud Pública , Estados Unidos
6.
Genet Mol Res ; 15(3)2016 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-27706769

RESUMEN

Glucosinolates (GSLs) are important secondary metabolites in Brassicaceae plants. Previous studies have mainly focused on GSL contents, types, and biosynthesis-related genes, but the molecular characterization patterns of GSL biosynthesis-related transcription factors remain largely unexplored in radish (Raphanus sativus L.). To isolate transcription factor genes regulating the GSL biosynthesis, genomic DNA and cDNA sequences of RsMYB28 and RsMYB29 genes were isolated in radish. Two R2R3-MYB domains were identified in the deduced amino acid sequences. Subcellular localization and yeast-one hybrid assays indicated that both the RsMYB28 and RsMYB29 genes were located in the nucleus and possessed transactivation activity. Reverse transcription quantitative analysis showed that the RsMYB28 and RsMYB29 genes were expressed in seeds, leaves, stems, and roots at the seedling, taproot thickening, and mature stages. Both genes were highly expressed during the seedling and taproot thickening stages. The expression level of RsMYB28 was found to be up-regulated following wounding, glucose, and abscisic acid treatments, whereas RsMYB29 was up-regulated following wounding and methyl jasmonate treatments. These results provide insights into the biological function and characterization of the RsMYB28 and RsMYB29 genes, and facilitate further dissection of the molecular regulatory mechanism underlying the GSL biosynthesis in radish.


Asunto(s)
Genes de Plantas , Proteínas de Plantas/genética , Raphanus/genética , Factores de Transcripción/genética , Secuencia de Aminoácidos , Secuencia de Bases , Clonación Molecular , Regulación del Desarrollo de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Glucosinolatos/metabolismo , Cebollas/citología , Péptidos/química , Filogenia , Epidermis de la Planta/citología , Proteínas de Plantas/metabolismo , Fracciones Subcelulares/metabolismo , Factores de Transcripción/metabolismo , Activación Transcripcional/genética
7.
J Physiol Pharmacol ; 66(6): 907-15, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26769840

RESUMEN

Rumex acetosa L. (RA) (Polygonaceae) is an important traditional Chinese medicine (TCM) commonly used in clinic for a long history in China and the aerial parts of RA has a wide variety of pharmacological actions such as diuretic, anti-hypertensive, anti-oxidative, and anti-cancer effects. However, the mechanisms involved are to be defined. The purpose of the present study was to evaluate the vasorelaxant effect and define the mechanism of action of the ethanol extract of Rumex acetosa L. (ERA) in rat aorta. ERA was examined for its vascular relaxant effect in isolated phenylephrine-precontracted rat thoracic aorta and its acute effects on arterial blood pressure. In addition, the roles of the nitric oxide synthase (NOS)-nitric oxide (NO) signaling in the ERA-induced effects were tested in human umbilical vein endothelial cells (HUVECs). The phosphorylation levels of Akt and eNOS were assessed by Western blot analysis in the cultured HUVECs. ERA induced endothelium-dependent vasorelaxation. The ERA-induced vasorelaxation was abolished by L-NAME (an NOS inhibitor) or ODQ (a sGC inhibitor), but not by indomethacin. Inhibition of PI3-kinase/Akt signaling pathway markedly reduced the ERA-induced vasorelaxation. In HUVECs, ERA increased NO formation in a dose-dependent manner, which was inhibited by L-NAME and by removing extracellular Ca(2+). In addition, ERA promoted phosphorylation of Akt and eNOS, which was prevented by wortmannin and LY294002, indicating that ERA induces eNOS phosphorylation through the PI3-kinase/Akt pathway. Further, in anesthetized rats, intravenously administered ERA decreased arterial blood pressure in a dose-dependent manner through an activation of the NOS-NO system. In summary, the ERA- induced vasorelaxation was dependent on endothelial integrity and NO production, and was mediated by activation of both the endothelial PI3-kinase/Akt- and Ca(2+)-eNOS-NO signaling and muscular NO-sGC-cGMP signaling.


Asunto(s)
Aorta/efectos de los fármacos , Células Endoteliales de la Vena Umbilical Humana/efectos de los fármacos , Extractos Vegetales/farmacología , Rumex , Vasodilatadores/farmacología , Animales , Aorta/fisiología , Calcio/metabolismo , Células Cultivadas , GMP Cíclico/metabolismo , Células Endoteliales de la Vena Umbilical Humana/metabolismo , Humanos , Técnicas In Vitro , Masculino , Medicina Tradicional China , Óxido Nítrico/metabolismo , Óxido Nítrico Sintasa de Tipo III/metabolismo , Fosfatidilinositol 3-Quinasa/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Ratas Sprague-Dawley , Transducción de Señal/efectos de los fármacos , Vasodilatación/efectos de los fármacos
8.
J Physiol Pharmacol ; 65(3): 417-24, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24930514

RESUMEN

Rubus chingii Hu (Rosaceae) is an important traditional Chinese medicine that has been used to improve function of the kidney and treat excessive polyuria. However, the effects of Rubus chingii on the cardiovascular system and its pharmacological mechanisms of action have not been studied. The aim of the present study was to evaluate the cardiovascular effects of ethanol extract of Rubus chingii (ERC) in rats. The changes in systolic blood pressure and heart rate of rats and vascular tone of aortic rings in in vitro were measured using pressure transducer and force transducer, respectively, connected to a multichannel recording system. ERC decreased systolic blood pressure and heart rate in a concentration-dependent manner. ERC induced vasorelaxation in a concentration-dependent manner. The ERC-induced vasorelaxation was not observed in the absence of the endothelium. The vasorelaxant effect of ERC was significantly attenuated by inhibition of endothelial NO synthase (eNOS), soluble guanylyl cyclase (sGC), or Ca(2+) entry from extracellular sources with L-NAME, ODQ, diltiazem, or extracellular Ca(2+) depletion, respectively. Similarly, an inhibition of Akt with wortmannin attenuated the ERC-induced vasorelaxation. Modulators of the store-operated Ca(2+) entry, thapsigargin, Gd(3+), and 2-aminoethyl diphenylborinate markedly attenuated the ERC-induced vasorelaxation. Furthermore, 4-aminopyridine an inhibitor of voltage-dependent K(+) (KV) channel, significantly attenuated the ERC-induced vasorelaxation. However, tetraethylammonium and glibenclamide, had no significant effect on the ERC-induced vasorelaxation. Indomethacin, atropine, and propranolol had no effects on the ERC-induced vasorelaxation. The present study demonstrates that ERC induces vasorelaxation via endothelium-dependent two-step signaling: an activation of the Ca(2+)-eNOS-NO signaling in the endothelial cells and then subsequent stimulation of the NO-sGC-cGMP-KV channel signaling in the vascular smooth muscle cells. The Akt-eNOS pathway is also suggested to be involved in this relaxation. Also, the findings suggest that the ERC-induced vasorelaxation is closely related to the hypotensive action of the agent.


Asunto(s)
Sistema Cardiovascular/efectos de los fármacos , Medicamentos Herbarios Chinos/farmacología , Etanol/química , Frutas/química , Extractos Vegetales/química , Extractos Vegetales/farmacología , Rosaceae/química , Animales , Aorta Torácica/efectos de los fármacos , Presión Sanguínea/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/aislamiento & purificación , Frecuencia Cardíaca/efectos de los fármacos , Masculino , Mesotelina , Extractos Vegetales/aislamiento & purificación , Ratas , Ratas Sprague-Dawley , Vasodilatación/efectos de los fármacos
9.
Physiol Plant ; 135(4): 436-49, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19292824

RESUMEN

Tree peony (Paeonia suffruticosaAndrews) is an important medicinal and ornamental plant. In China, its root bark is an important ingredient for traditional Chinese medicine. It is valued as an ornamental plant because its flower shows a wide variation in shape and color. We used flower buds at different developmental stages to construct the first cDNA library for this organism. A total of 2241 raw expressed sequence tags (ESTs) were obtained after unidirectional sequencing. After processing and assembly, they resulted in a total of 1300 unigenes [363 contigs with an average size of 3.5 ESTs (ranging from 2 up to 36) and 937 singletons]. Gene Ontology categories were assigned and further summarized into 13 broad families with biological roles according to similar functional characteristics or cellular roles. A total of 185 single nucleotide polymorphisms were detected for all contigs. We were able to detect open reading frames in the consensus sequences of 1268 unigenes. 97.5% of the ESTs showed significant similarity to sequences present in public databases. One hundred and sixty-seven short sequence repeats were obtained in the whole data set. All the analysis and information will be valuable resources for a better understanding of this important plant and also can be used for functional study in Paeoniaceae.


Asunto(s)
Etiquetas de Secuencia Expresada , Flores/crecimiento & desarrollo , Paeonia/genética , Secuencia de Consenso , Flores/genética , Regulación del Desarrollo de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Biblioteca de Genes , Genoma de Planta , Sistemas de Lectura Abierta , Paeonia/crecimiento & desarrollo , Polimorfismo de Nucleótido Simple , Señales de Clasificación de Proteína , ARN de Planta/genética , Análisis de Secuencia de ADN
10.
Int J Hyperthermia ; 21(7): 631-6, 2005 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-16304714

RESUMEN

The study was to evaluate the efficacy of the Adp53 combined with hyperthermia on advanced cancer. Fifteen patients with advanced cancer were enrolled in this clinical trial. Thirteen patients with recurrent tumours failed in conventional treatments and the two other patients with primary tumour received no treatment before they were enrolled. Recombinant adenovirus-p53 (Adp53) is a E1 substituted replication-incompetent recombinant adenovirus encoding the human wild-type p53 (wtp53) gene. The 15 patients were intra-tumourally injected with Adp53, 1x10(12)vp (virus particle) once a week, with a total of 4-8 times was given. The temperature being set hyperthermia every week 3 days after the injection of Adp53 at 43-44 degrees C using 915 MHz microwave machine for superficial tumour for 1 h or at 42-43 degrees C using 41 MHz radiofrequency machine for deep-seated tumour for 1 h. Among the 15 patients, five concurrently were added with radiotherapy and three were added with cisplatin-based chemotherapy. The treatment achieved CR in two cases, PR in four cases, SD in eight cases and PD in one case and, after the treatment, tumours of two cases disappeared and seven of the other 13 cases (54%) had low-density area (LDA) of more than 50% on CT images in tumours. In the 15 patients, no dose-limiting toxicity and adverse events were noted, except transient fever after Adp53 administration. In conclusion, Adp53 combined with hyperthermia was safe and effective in patients with advanced cancer and p53 gene therapy was potential to thermosensitize in advanced cancer.


Asunto(s)
Terapia Genética , Hipertermia Inducida , Neoplasias/terapia , Proteínas Recombinantes/uso terapéutico , Proteína p53 Supresora de Tumor/genética , Proteína p53 Supresora de Tumor/uso terapéutico , Adenovirus Humanos/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Terapia Combinada , Femenino , Genes p53 , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/terapia
11.
Amino Acids ; 26(3): 267-71, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15221507

RESUMEN

Taurine has beneficial effects on lipid metabolism in experimental animals fed with high-cholesterol or high fat diets. Whether taurine benefits lipid metabolism in humans has rarely been investigated. The aim of this study was to evaluate the effects of taurine on serum lipids in overweight or obese young adults. Thirty college students (age: 20.3+/-1.7 years) with a body mass index (BMI) >/=25.0 kg/m(2), and with no evidence of diabetes mellitus were selected and assigned to either the taurine group (n=15) or the placebo group (n=15) by double-blind randomization. Taurine 3 g/day or placebo was taken orally for 7 weeks. Triacylglycerol (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and plasma glucose were measured before and after supplementation. The atherogenic index (AI) was calculated as (TC-HDL-C)/HDL-C. There were no differences in any baseline parameter between the two groups. Taurine supplementation decreased TG and AI significantly. Body weight also reduced significantly in the taurine group. These results suggest that taurine produces a beneficial effect on lipid metabolism and may have an important role in cardiovascular disease prevention in overweight or obese subjects.


Asunto(s)
Peso Corporal , Lípidos/sangre , Obesidad/sangre , Taurina/farmacología , Adulto , Índice de Masa Corporal , Colesterol/sangre , Suplementos Dietéticos , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Femenino , Humanos , Lipoproteínas/sangre , Masculino , Taurina/administración & dosificación , Taurina/metabolismo , Triglicéridos/sangre
12.
J Agric Food Chem ; 49(11): 5315-21, 2001 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-11714322

RESUMEN

The free and bound phenols have been measured in 20 fruits commonly consumed in the American diet. Phenols were measured colorimetrically using the Folin-Ciocalteu reagent with catechin as the standard after correction for ascorbic acid contribution. On a fresh weight basis, cranberry had the highest total phenols, and was distantly followed by red grape. Free and total phenol quality in the fruits was analyzed by using the inhibition of lower density lipoprotein oxidation promoted by cupric ion. Ascorbate had only a minor contribution to the antioxidants in fruits with the exception of melon, nectarine, orange, white grape, and strawberry. The fruit extracts' antioxidant quality was better than the vitamin antioxidants and most pure phenols, suggesting synergism among the antioxidants in the mixture. Using our assay, fruits had significantly better quantity and quality of phenol antioxidants than vegetables. Fruits, specifically apples and cranberries, have phenol antioxidants that can enrich lower density lipoproteins and protect them from oxidation. The average per capita consumption of fruit phenols in the U.S. is estimated to be 255 mg/day of catechin equivalents.


Asunto(s)
Antioxidantes/análisis , Frutas/química , Fenoles/análisis , Extractos Vegetales/química
13.
JAMA ; 286(8): 944-53, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11509059

RESUMEN

CONTEXT: Several nutrients have been shown to influence immunologic and inflammatory responses in humans. Whether these effects translate into an improvement in clinical outcomes in critically ill patients remains unclear. OBJECTIVE: To examine the relationship between enteral nutrition supplemented with immune-enhancing nutrients and infectious complications and mortality rates in critically ill patients. DATA SOURCES: The databases of MEDLINE, EMBASE, Biosis, and CINAHL were searched for articles published from 1990 to 2000. Additional data sources included the Cochrane Controlled Trials Register from 1990 to 2000, personal files, abstract proceedings, and relevant reference lists of articles identified by database review. STUDY SELECTION: A total of 326 titles, abstracts, and articles were reviewed. Primary studies were included if they were randomized trials of critically ill or surgical patients that evaluated the effect of enteral nutrition supplemented with some combination of arginine, glutamine, nucleotides, and omega-3 fatty acids on infectious complication and mortality rates compared with standard enteral nutrition, and included clinically important outcomes, such as mortality. DATA EXTRACTION: Methodological quality of individual studies was scored and necessary data were abstracted in duplicate and independently. DATA SYNTHESIS: Twenty-two randomized trials with a total of 2419 patients compared the use of immunonutrition with standard enteral nutrition in surgical and critically ill patients. With respect to mortality, immunonutrition was associated with a pooled risk ratio (RR) of 1.10 (95% confidence interval [CI], 0.93-1.31). Immunonutrition was associated with lower infectious complications (RR, 0.66; 95% CI, 0.54-0.80). Since there was significant heterogeneity across studies, we examined several a priori subgroup analyses. We found that studies using commercial formulas with high arginine content were associated with a significant reduction in infectious complications and a trend toward a lower mortality rate compared with other immune-enhancing diets. Studies of surgical patients were associated with a significant reduction in infectious complication rates compared with studies of critically ill patients. In studies of critically ill patients, studies with a high-quality score were associated with increased mortality and a significant reduction in infectious complication rates compared with studies with a low-quality score. CONCLUSION: Immunonutrition may decrease infectious complication rates but it is not associated with an overall mortality advantage. However, the treatment effect varies depending on the intervention, the patient population, and the methodological quality of the study.


Asunto(s)
Enfermedad Crítica , Nutrición Enteral , Alimentos Formulados , Inmunidad Innata , Arginina/administración & dosificación , Cuidados Críticos , Procedimientos Quirúrgicos Electivos , Ácidos Grasos Omega-3/administración & dosificación , Glutamina/administración & dosificación , Humanos , Infecciones/epidemiología , Mortalidad , Nucleótidos/administración & dosificación , Complicaciones Posoperatorias/epidemiología , Ensayos Clínicos Controlados Aleatorios como Asunto
14.
J Mass Spectrom ; 35(11): 1246-51, 2000 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-11114081

RESUMEN

An API-LC/MS/MS method was developed for the identification of the medicinal herb Podophyllum emodi based on the profile of its aryltetrahydronapthalene and related lignan marker compounds. This was done by matching the structural information from the tandem mass spectrometric data with those lignan marker compounds already reported for the herb. The method could be employed in the absence of reference standards for the markers and was particularly useful in view of the scarcity of supply of these chemical standards. It has been used successfully to differentiate Podophyllum emodi from two commonly used medicinal herbs of a different genus but having similar appearance, Radix clematidis and Radix gentiana, as well as a closely related herb, Podophyllum peltatum.


Asunto(s)
Medicamentos Herbarios Chinos/análisis , Espectrometría de Masas/métodos , Plantas Medicinales/química , Plantas Tóxicas , Podofilotoxina/análogos & derivados , Podophyllum/química , Tetrahidronaftalenos/análisis , Biomarcadores/análisis , Biomarcadores/química , Cromatografía Líquida de Alta Presión , Medicamentos Herbarios Chinos/química , Lignanos/análisis , Lignanos/química , Estructura Molecular , Podofilotoxina/análisis , Podofilotoxina/química , Estándares de Referencia , Tetrahidronaftalenos/química
15.
Wei Sheng Yan Jiu ; 29(2): 96-8, 2000 Mar 30.
Artículo en Chino | MEDLINE | ID: mdl-12725086

RESUMEN

The effect of sepia on the intracellular Ca2+ concentration, nuclear Ca2+/Mg(2+)-ATPase activities and the expression of c-jun were studied in H22 cancer cells by using fluorescent probe and immunohistochemical method. The results showed that intracellular Ca2+ concentration decreased 69% and 79%, nuclear Ca2+/Mg(2+)-ATPase activities diminished 21% and 37%, c-jun expression decreased obviously. The results suggested that sepia probably diminished the intracellular Ca2+ concentration, affected Ca(2+)-dependent nuclear Ca2+/Mg(2+)-ATPase activities, thus reduced the amount of Ca2+ transporting into nuclei, so lessened the promoting effect of Ca2+ on c-jun expression, and therefore inhibited cellular differentiation and proliferation. This might be one of the possible anti-cancer mechanisms of sepia.


Asunto(s)
ATPasa de Ca(2+) y Mg(2+)/metabolismo , Calcio/metabolismo , Materia Medica/farmacología , Moluscos , Proteínas Proto-Oncogénicas c-jun/biosíntesis , Animales , Núcleo Celular/enzimología , Núcleo Celular/metabolismo , Femenino , Humanos , Técnicas In Vitro , Líquido Intracelular/metabolismo , Neoplasias Hepáticas Experimentales/patología , Materia Medica/aislamiento & purificación , Ratones , Moluscos/química , Trasplante de Neoplasias , Proteínas Proto-Oncogénicas c-jun/genética , Células Tumorales Cultivadas
16.
Biochem J ; 344 Pt 2: 571-6, 1999 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-10567242

RESUMEN

S-Adenosylmethionine (AdoMet) synthetase (SAMS: EC 2.5.1.6) catalyses the formation of AdoMet from methionine and ATP. We have cloned a gene for Plasmodium falciparum AdoMet synthetase (PfSAMS) (GenBank accession no. AF097923), consisting of 1209 base pairs with no introns. The gene encodes a polypeptide (PfSAMS) of 402 amino acids with a molecular mass of 44844 Da, and has an overall base composition of 67% A+T. PfSAMS is probably a single copy gene, and was mapped to chromosome 9. The PfSAMS protein is highly homologous to all other SAMS, including a conserved motif for the phosphate-binding P-loop, HGGGAFSGKD, and the signature hexapeptide, GAGDQG. All the active-site amino acids for the binding of ADP, P(i) and metal ions are similarly preserved, matching entirely those of human hepatic SAMS and Escherichia coli SAMS. Molecular modelling of PfSAMS guided by the X-ray crystal structure of E. coli SAMS indicates that PfSAMS binds ATP/Mg(2+) in a manner similar to that seen in the E. coli SAMS structure. However, the PfSAMS model shows that it can not form tetramers as does E. coli SAMS, and is probably a dimer instead. There was a differential sensitivity towards the inhibition by cycloleucine between the expressed PfSAMS and the human hepatic SAMS with K(i) values of 17 and 10 mM, respectively. Based on phylogenetic analysis using protein parsimony and neighbour-joining algorithms, the malarial PfSAMS is closely related to SAMS of other protozoans and plants.


Asunto(s)
Metionina Adenosiltransferasa/genética , Plasmodium falciparum/enzimología , Secuencia de Aminoácidos , Animales , Composición de Base , Dominio Catalítico , Mapeo Cromosómico , Clonación Molecular , Cicloleucina/farmacología , ADN Complementario/genética , Evolución Molecular , Dosificación de Gen , Genes Protozoarios , Humanos , Hígado/enzimología , Metionina Adenosiltransferasa/antagonistas & inhibidores , Metionina Adenosiltransferasa/clasificación , Metionina Adenosiltransferasa/metabolismo , Modelos Moleculares , Datos de Secuencia Molecular , Filogenia , Homología de Secuencia de Aminoácido
17.
Zhong Yao Cai ; 22(5): 223-5, 1999 May.
Artículo en Chino | MEDLINE | ID: mdl-12575072

RESUMEN

Mucopolyaccharide with molecular weight of 10253 Da was extracted and purified from fresh Holothuria atra Jaeger by means of enzymic and alkaline hydrolysis, potassium acetate and ethanol fractional precipitation. It was tested to be purified ingredient with agarose electrophoresis. The percentage content of galactosamine, glucuronic acid, fucose and sulfate in the mucopolysaccharide was 16.12%, 17.88%, 11.66% and 23.52% respectively.


Asunto(s)
Glicosaminoglicanos/aislamiento & purificación , Materia Medica/química , Pepinos de Mar/química , Animales , Fucosa/análisis , Galactosamina/análisis , Ácido Glucurónico/análisis , Glicosaminoglicanos/química , Peso Molecular , Sulfatos/análisis
18.
Zhongguo Yao Li Xue Bao ; 20(6): 486-90, 1999 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10678137

RESUMEN

AIM: To compare the efficacy and safety between huperzine-A (Hup) in capsules and tablets for treating patients with Alzheimer disease (AD). METHODS: Using multicenter, prospective, double-blind, double-mimic, parallel, positive controlled and randomized methods, 60 patients meeting with the NINCDS-ARDRA criteria of AD were divided into 2 equal groups. Patients in the capsule group received 4 capsules of Hup (each contains 50 micrograms) and 4 tablets of placebo (lactose and starch inside); while the tablet group received 4 tablets of Hup (each contains 50 micrograms) and 4 capsules of placebo, p.o., twice a day for 60 d. All the patients were evaluated with a lot of related ranting scales, and physiological and laboratory examination. RESULTS: There were significant differences (P < 0.01) on all the psychological evaluations between 'before' and 'after' the 60-d trial of 2 groups, but there was no significant difference between 2 groups by group t test (P > 0.05). The changes of oxygen free radicals in 2 groups showed marked improvement. No severe side effect besides moderate to mild nausea was found in both groups. CONCLUSION: There is equal efficacy and safety between Hup in capsule and tablet for treating patients with AD, and Hup can reduce the pathological changes of the oxygen free radicals in the plasma and erythrocytes of patients with AD.


Asunto(s)
Enfermedad de Alzheimer/tratamiento farmacológico , Inhibidores de la Colinesterasa/uso terapéutico , Sesquiterpenos/uso terapéutico , Superóxido Dismutasa/sangre , Anciano , Anciano de 80 o más Años , Alcaloides , Enfermedad de Alzheimer/sangre , Cápsulas , Inhibidores de la Colinesterasa/administración & dosificación , Método Doble Ciego , Femenino , Humanos , Peróxidos Lipídicos/sangre , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sesquiterpenos/administración & dosificación , Comprimidos
19.
Biotechnol Prog ; 14(4): 639-44, 1998.
Artículo en Inglés | MEDLINE | ID: mdl-9694687

RESUMEN

A bulk acoustic wave (BAW) bacterial growth sensor has been proposed for study of inhibitory effects of tea by continuous monitoring of disturbances in Proteus growth in the aqueous extracts of various teas, e.g. green tea, Fuzhuan brick tea, Oolong tea, Kudin tea, and black tea. The kinetic parameters, e.g. asymptote (A), maximum specific growth rate (microm), lag time (lambda), and generation time (g), accurately estimated by using the growth response model, have been first used to characterize antimicrobial properties of tea. All of the parameters were changed via the inhibitory effects by tea. Green tea gives the weakest inhibitory action while others show stronger inhibitory actions. These inhibitory effects have also been examined by using the pour plate count technique. Both of the results show that, in addition to the antimicrobial properties of tea polyphenols and catechins, etc., the inhibitory effects may be attributed to the metabolites produced during the fermentation processing of these teas except green tea. The conventional disk diffusion test has been used to determine the minimum inhibitory concentration (MIC) against P. rettgeri. The MICs of green tea, Fuzhuan brick tea, Oolong tea, and black tea were found to be 1113, 818.0, 681.2, and 510.4 microg/mL, respectively. The BAW bacterial growth sensor has shown to have advantages over other techniques, including the disk diffusion test, photometry, and the impedance method.


Asunto(s)
Antibacterianos/química , Bacterias/efectos de los fármacos , Bacterias/crecimiento & desarrollo , Técnicas Biosensibles/métodos , Té/química , Acústica/instrumentación , Amoníaco/análisis , Antibacterianos/farmacología , Técnicas Biosensibles/instrumentación , Difusión/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Pruebas de Sensibilidad Microbiana , Proteus/efectos de los fármacos , Proteus/crecimiento & desarrollo , Proteus mirabilis/efectos de los fármacos , Proteus mirabilis/crecimiento & desarrollo
20.
Zhonghua Hu Li Za Zhi ; 32(11): 627-9, 1997 Nov.
Artículo en Chino | MEDLINE | ID: mdl-9496009

RESUMEN

60 cancer patients during chemotherapy were investigated by using case-control study. 30 of them were recruited as the experiment group and given biofeedback relaxation training, the others were controls. Both of the two groups were assessed with SCL-90 and questionnaire on physical reactions. Results showed that no significant difference was found between the average scores of SCL-90 (including F1, F3, F4, F5, F10) of the two groups before the intervention. However, lower average scores and less serious physical reactions (4 of the 6 items) were seen from the experiment group after the intervention. It is indicated that biofeedback relaxation training is effective in alleviating patient's unhealthy psychosomatic reactions during chemotherapy.


Asunto(s)
Antineoplásicos/uso terapéutico , Biorretroalimentación Psicológica , Terapia por Relajación , Adulto , Anciano , Antineoplásicos/efectos adversos , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos Psicofisiológicos/inducido químicamente , Trastornos Psicofisiológicos/prevención & control
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