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1.
Braz. j. med. biol. res ; 42(11): 1027-1034, Nov. 2009. ilus, tab
Article in English | LILACS | ID: lil-529095

ABSTRACT

Nutritional substances associated to some hormones enhance liver regeneration when injected intraperitoneally, being denominated hepatotrophic factors (HF). Here we verified if a solution of HF (glucose, vitamins, salts, amino acids, glucagon, insulin, and triiodothyronine) can revert liver cirrhosis and how some extracellular matrices are affected. Cirrhosis was induced for 14 weeks in 45 female Wistar rats (200 mg) by intraperitoneal injections of thioacetamide (200 mg/kg). Twenty-five rats received intraperitoneal HF twice a day for 10 days (40 mL·kg-1·day-1) and 20 rats received physiological saline. Fifteen rats were used as control. The HF applied to cirrhotic rats significantly: a) reduced the relative mRNA expression of the genes: Col-α1 (-53 percent), TIMP-1 (-31.7 percent), TGF-β1 (-57.7 percent), and MMP-2 (-41.6 percent), whereas Plau mRNA remained unchanged; b) reduced GGT (-43.1 percent), ALT (-17.6 percent), and AST (-12.2 percent) serum levels; c) increased liver weight (11.3 percent), and reduced liver collagen (-37.1 percent), regenerative nodules size (-22.1 percent), and fibrous septum thickness. Progranulin protein (immunohistochemistry) and mRNA (in situ hybridization) were found in fibrous septa and areas of bile duct proliferation in cirrhotic livers. Concluding, HF improved the histology and serum biochemistry of liver cirrhosis, with an important reduction of interstitial collagen and increased extracelullar matrix degradation by reducing profibrotic gene expression.


Subject(s)
Animals , Female , Rats , Extracellular Matrix/metabolism , Liver Cirrhosis, Experimental/therapy , Nutritional Support/methods , Solutions/therapeutic use , Amino Acids/administration & dosage , Amino Acids/therapeutic use , Glucose/administration & dosage , Glucose/therapeutic use , Hormones/administration & dosage , Hormones/therapeutic use , Immunohistochemistry , In Situ Hybridization , Injections, Intraperitoneal , Liver Cirrhosis, Experimental/metabolism , Liver Cirrhosis, Experimental/pathology , Rats, Wistar , Salts/administration & dosage , Salts/therapeutic use , Solutions/administration & dosage , Thioacetamide , Vitamins/administration & dosage , Vitamins/therapeutic use
2.
Article in English | IMSEAR | ID: sea-51449

ABSTRACT

AIM: To test the efficacy of desensitizing tooth paste containing EMS salts in alleviating dentinal hypersensitivity, reducing plaque accumulation, and reducing gingivitis. METHODS: A randomised, single blind, parallel placebo controlled study was conducted in 40 cases. The cases were randomly assigned to test and control groups. The test group was instructed to use the test tooth paste (containing EMS salts) and control group a placebo tooth paste (without any therapeutic agents) for a period of 6 weeks. The hypersensitivity levels were measured with scratchometer and verbal rating scale. Student t test and wilcoxon's Mann-Whitney test were used to compare the test and control groups. RESULTS AND CONCLUSION: The results indicated that both the test as well as the control toothpastes were effective in alleviating dentinal hypersensitivity as well as reducing gingivitis. However, the test toothpaste was superior in alleviation of dentinal hypersensitivity.


Subject(s)
Adult , Aged , Dental Plaque/prevention & control , Dental Plaque Index , Dentifrices/therapeutic use , Dentin Sensitivity/prevention & control , Female , Gingivitis/prevention & control , Humans , Hydrogen-Ion Concentration , Male , Middle Aged , Nitrates/therapeutic use , Pain Measurement , Patient Satisfaction , Periodontal Index , Placebos , Potassium Compounds/therapeutic use , Salts/therapeutic use , Single-Blind Method , Sodium Bicarbonate/therapeutic use , Sodium Chloride/therapeutic use , Sulfates/therapeutic use , Toothpastes/therapeutic use
3.
Fluoracion dia ; 1(1): 19-22, mar.-ago. 1991. ilus
Article in Spanish | LILACS | ID: lil-106347

ABSTRACT

El presente estudio determinó el efecto de sal fluorurada en la concentración de flúor en la leche materna en una muestra de 77 madres lactantes costarricenses de las comunidades de Tres Ríos, Tierra Blanca y Desamparados (Costa Rica). Los resultados obtenidos fueron comparados con un grupo de madres lactantes que consumen agua fluorurada y otro que consume sal sin flúor. Los datos obtenidos mostraron que la ingesta de flúor por cosumo de sal fluorurada y agua fluorurada presenta niveles de flúor en leche materna en un rango de 20 ug/l a 100 ug/l. El grupo de control, constituido por madres que no consumían flúor, presentó niveles promedios de flúor en leche materna de 14,8 ug/l (p<0,0001). El promedio de flúor en leche materna en el área de Tierra Blanca (zona con flúor natural en las aguas de consumo humano) fue de 62,1 ug/l y el promedio de flúor excretado por las madres que consumían sal fluorurada fue de 27,6 ug/l (p<0,001). En las excreciones de orina, los dos grupos experimentales con suplementos de flúor tuvieron el mismo promedio de flúor: 1,4 ug/l


Subject(s)
Fluoridation , Milk, Human , Salts/therapeutic use
4.
Fluoracion dia ; 1(1): 27-30, mar.-ago. 1991. ilus
Article in Spanish | LILACS | ID: lil-106349

ABSTRACT

Se analiza el porcentaje de la disminución de la caries dental y se compara el índice CPOD, el grado de fluorosis dental y fluoruria en niños. Se seleccionaron para la muestra niños de 5 años (N=40) y de 7 años (N=60) de Tierra Blanca y Llano Grande de Cartago, quienes están consumiendo agua fluorada en una concentración de 0,8 ppm de flúor en época lluviosa y de 1,4 ppm, de flúor en época seca. los resultados muestran que los niños presentaron una disminución de la caries dental del 62 por ciento en piezas permanentes (CPOD) y un 24 por ciento en piezas temporales (ceo) en comparación con niños que no consumen agua fluorurada. Se observó fluorosis moderada y severa en piezas permanentes en un 15 por ciento de los niños cuya fluoruria era superior a 1,5 ppm. Según el índice colectivo de fluorosis dental de Dean (Fic=1,0) estas zonas requieren atención como problema de salud pública. La presente investigación es parte del estudio global de seguimiento epidemiológico de caries dental vs. fluorosis que realiza el Programa de Fluoruración de la Sal en áreas que presentan niveles de flúor en el agua y en la orina superiores al nivel óptimo


Subject(s)
Dental Caries/epidemiology , Dental Caries/prevention & control , Fluoridation , Fluorosis, Dental/epidemiology , DMF Index , Salts/therapeutic use
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