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1.
Braz. j. oral sci ; 22: e237545, Jan.-Dec. 2023. tab
Article in English | LILACS, BBO | ID: biblio-1433748

ABSTRACT

Aim: To evaluate dentin permeability after pretreatment with 2.5% aqueous solution of titanium tetrafluoride (TiF4), followed by a self-etching universal adhesive system. Methods: Forty dentin discs (1.5 mm thick) were randomly divided into groups according to the application or non-application of a pretreatment, and the type of adhesive system to be tested (two-step self-etching/ Clearfil SE Bond/ Kuraray Medical, or universal adhesive system/ Single Bond Universal/ 3M ESPE). Both sides of the discs were conditioned with 37% phosphoric acid to remove the smear layer. The first hydraulic conductivity measurement (L1) was performed in a permeability machine, under 5 PSI pressure. The samples were sanded again to form a standardized smear layer. The teeth designated for pre-treatment with TiF4 received the TiF4 solutions applied actively for 60 seconds, and the adhesive systems were applied according to the manufacturer's instructions. Then, a new hydraulic conductivity measurement (L2) was performed for the purpose of calculating the hydraulic conductance at a later time, considering the water viscosity and the thickness of the specimen. The percentage (L) of dentin permeability after application of the adhesive system was obtained (L (%) = [(L1-L2) x100] / L1). The Mann-Whitney non-parametric test was applied. Results: There was no difference between the two adhesive systems, or between the groups with or without pretreatment, as regards dentin permeability (p>0.05). Conclusion: Pretreatment with 2.5% TiF4 did not influence dentin permeability, irrespective of the adhesive system used


Subject(s)
Titanium , Dentin-Bonding Agents , Dentin Permeability , Fluorides
2.
Bol. latinoam. Caribe plantas med. aromát ; 18(2): 106-129, mar. 2019. tab, graf, mapas
Article in Spanish | LILACS | ID: biblio-1007690

ABSTRACT

The medicinal plants has been used since Prehispanic times by Mexican people to treat digestive diseases. Nowadays their use is a common practice in the poor communities. This work describes the traditional use of medicinal plants to cure these type of ailment in the community of Tetela del Volcán. Guided collect of botanical material and a total of 92 semi-structured interviews to 58 people were carried out. A total of 78 species, 70 genus and 36 families were registered. The families Asteracea and Lamiaceae predominanted culturally. Most of the species were cultivated and branches were preferably utilized. Of the total of 24 diseases, stomach pain and diarrhea were the most important. The species Matricaria chamomilla L., Mentha x piperita L., Artemisia absinthium L. y Psidium guajava L had the highest modified Friedman Fidelity Indexes. This biocultural heritage contributes to health, thus to the well-bearing of inhabitants of Tetela del Volcán.


Los mexicanos han utilizado las plantas medicinales para las enfermedades del sistema digestivo desde la época prehispánica, actualmente son particularmente empleadas en las comunidades pobres. Se describe el uso de las plantas medicinales para curar dicho tipo de padecimientos en la comunidad de Tetela del Volcán. Se realizaron colectas guiadas de material botánico y 92 entrevistas semi- estructuradas a 59 informantes. Se registraron 78 especies pertenecientes a 70 géneros y 36 familias. Las familias Asteracea y Lamiaceae dominan culturalmente. La mayoría de las especies son cultivadas y se usan preferentemente las ramas. De 24 enfermedades, el dolor de estómago y la diarrea fueron las más importantes. Las especies Matricaria chamomilla L., Mentha x piperita L., Artemisia absinthium L. y Psidium guajava L. tuvieron los mayores Índices de Fidelidad de Friedman modificados. Este patrimonio biocultural contribuye en la salud y, por lo tanto, al bienestar de los habitantes de Tetela del Volcán.


Subject(s)
Plants, Medicinal , Ethnobotany , Digestive System Diseases/drug therapy , Medicine, Traditional , Mexico
3.
Pensar prát. (Impr.) ; 15(3): 801-814, jul.-set. 2012.
Article in Portuguese | LILACS | ID: lil-774849

ABSTRACT

É sabido que os ácidos graxos são importante fonte de energia para contração muscular. As principais fontes metabólicas de energia derivadas dos lipídios são os ácidos graxos do tecido adiposo, os triglicerídeos intramusculares e os triglicerídeos circulantes do plasma. A contribuição de cada um depende do exercício realizado,duração, intensidade e estado de treinamento do indivíduo. O treinamento de longa duração provoca adaptações no organismo, como aumento da capacidade oxidativa dos músculos esqueléticos e maior participação dos lipídios como substrato energético durante o esforço, ocasionando possível melhora no desempenho do atleta. O objetivo do presente estudo foi investigar a regulação do metabolismo lipídico durante a realização do exercício físico.


It is known for a long time that fatty acids are important energy source for muscle contraction. The main sources of metabolic energy derived from lipids are free fatty acids from adipose tissue and intramuscular triglycerides circulating plasma triglycerides. The contribution of each one depends on the type of exercise done, duration, intensity and state of training of the individual. The endurance training provokes adaptations in the organism as, increase of the oxidative capacity of the skeletal muscles and, consequently bigger participation of the lipids as energetic substrate during realization of the effort, possibly causing an improvement in performanceof the athlete. The aim of the present study was to investigate regulationof the lipids metabolism, during the physical exercise.


Se sabe que los ácidos grasos son fuente importante de energía para la contracción muscular. Las principales fuentes de energía metabólica derivada de los lípidos son los ácidos grasos del tejido adiposo intramuscular y triglicéridos plasmáticos de triglicéridos circulantes. La contribución de cada uno depende del ejercicio realizado, duración, intensidad y nivel de entrenamiento del individuo. La formación a largo plazo provoca adaptaciones en el cuerpo, como aumento de la capacidad oxidativadel músculo esquelético y una mayor participación de los lípidos como sustrato energético durante el ejercicio, dando lugar a una posible mejora en el rendimiento deportivo. El propósito de este estudio fue investigar la regulación del metabolismo de los lípidos durante el curso del ejercicio.


Subject(s)
Exercise , Fatty Acids , Lipolysis , Metabolism
4.
Femina ; 35(5): 301-307, maio 2006. ilus, tab
Article in Portuguese | LILACS | ID: lil-458501

ABSTRACT

Hepatite C é uma doença silenciosa e lentamente progressiva com significativas seqüelas em longo prazo, tais como cirrose, insuficiência hepática e carcinoma hepatocelular. Muitas mulheres em idade fértil estão infectadas com o vírus da hepatite C (HCV), e, consequentemente, sob o risco de transmiti-lo aos seus descendentes. A transmissão materno-fetal do HCV ocorre em cerca de 5 a 6 porcento dos casos. Este risco aumenta quando a mãe apresenta carga viral positiva por ocasião do parto e principalmente quando existe co-infecção com o HIV. O aleitamento materno, atualmente, não apresenta indícios de risco para a transmissão do HCV. Objetivou-se com a presente revisão, a abordagem de alguns aspectos associados à infecção HCV e gravidez como os fatores de risco associados com a infecção e o manejo clínico-obstétrico durante a gestação e no período puerperal


Subject(s)
Humans , Female , Pregnancy , Breast Feeding , Hepatitis C , HIV Infections/transmission , Infectious Disease Transmission, Vertical , Pregnancy Complications, Infectious , Risk Factors
5.
Salud trab. (Maracay) ; 3(1): 41-50, ene. 1995. ilus
Article in Spanish | LILACS | ID: lil-234566

ABSTRACT

Para desarrollar una metodología para el estudio regional de la salud obrera en México, se realizó una investigación, utilizando como principal insumo la información recopilada en las Unidades de Medicina Familiar (UMF), del Instituto Mexicano del Seguro Social (IMSS), en el Municipio Naucalpan, del Estado de México. El carácter inédito de esta fuente, su confiabilidad y cobertura, permiten prever que los perfiles de morbilidad de los trabajadores y su relación con el lugar que ocupan en el proceso productivo serán muy reveladores


Subject(s)
Humans , Male , Female , Pathology/classification , Mortality/trends , Occupational Health/statistics & numerical data
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