Results: 21

Potential effect of platelet rich fibrin prepared under differen centrifugation protocols on stem cells from the apical papila

Braz. dent. sci; 26 (4), 2023
Objetivo: Este estudo objetivou avaliar o potencial proliferativo e de diferenciação das células tronco da papila cultivadas conjuntamente com fibrina rica em plaquetas (PRF) preparados sob dois protocolos de centrifugação distintos. Material e Métodos: Protocolos padrão e avançado de PRF foram...

Alcance de las células madre derivadas de tejido adiposo

Introducción: En el tejido adiposo se han identificado células madre mesenquimales con capacidad autorrenovadora y multipotencial. Mediante digestión enzimática y centrifugado del lipoaspirado se libera una población heterogénea de células denominada fracción vascular estromal, con innumerables ...

Cytocentrifugation as an additional method to study echinoderm coelomocytes: a comparative approach combining living cells, stained preparations, and energy-dispersive x-ray spectroscopy

Rev. biol. trop; 69 (supl. 2), 2021
Introduction: Echinoderm coelomocytes have traditionally been investigated through a morphological approach using light microscopy, which relies on the idea of constant cell shape as a stable character. However, this can be affected by biotic or abiotic conditions. Objective: To analyze if the consistenc...

Effect of plasma separation techniques and sperm selection on sperm recovery and viability of cooled pony stallion semen for 48h at 5°C

Separation techniques of seminal plasma [centrifugation (SC) and Sperm Filter® (SF)] and sperm selection [Androcoll-E (SCA) and filtration glass wool (GW)] were used in 24 ejaculates from 6 stallions. In experiment 1, the ejaculates were allocated into control (no spin), centrifugation at 600 g x 10min,...

Supervivencia del injerto graso. Factores pronósticos

Rev. cientif. cienc. med; 23 (2), 2020
Utilizar la grasa del propio paciente como material de elección para restaurar volúmenes permite describir distintas formas de obtención de la misma; con o sin infiltración de la zona donante, distintas presiones negativas de succión; diferentes tipos de procesamiento (lavado, filtrado, decantación...

L-PRF y Ciclo Celular. Revisión Narrativa

RESUMEN: Los concentrados plaquetarios han emergido como un potencial material regenerativo, utilizado de forma aislada o como andamiaje para otros materiales de injerto. Son extractos de sangre, obtenidos después de procesar una muestra de sangre completa, mediante centrifugación. El primer reporte da...

Influência do tempo de centrifugação em testes de coagulação: tempo de protrombina e tempo de tromboplastina parcial

Rev. bras. anal. clin; 51 (1), 2019
Objetivo: Analisar os testes de coagulação: tempo de protrombina (TP) e tempo de tromboplastina parcial (TTP) em diferentes tempos de centrifugação da amostra da biológica, com relação ao protocolo padrão do Clinical Laboratory Standards Institute (CLSI). Métodos: As amostras foram divididas em ...

Turn down - turn up: a simple and low-cost protocol for preparing platelet-rich plasma

Clinics; 74 (), 2019
OBJECTIVE: To describe and analyze a new protocol for the extraction of platelet-rich plasma (PRP) for use in clinical practice and compare this technique with methods that have been previously described in the medical literature. METHODS: We extracted PRP from 20 volunteers using four different protoco...

Comparison of methodologies for detecting Trypanosoma cruzi parasites by microscopic observation of microhematocrit capillary tubes

Abstract INTRODUCTION: The microscopic examination of microhematocrit tubes (mHCT) has been proposed as the gold standard for acute and congenital Chagas disease diagnosis. We compared different mHCT methodologies detecting T. cruzi parasites in the blood. METHODS: The rotating method, water mount, a...

Bone healing of dental alveoli in smokers with platelet-rich plasma obtained using single or double centrifugation

J. oral res. (Impresa); 7 (9), 2018
Introduction: the habit of smoking alters the bone healing process, a problem to consider in oral surgery. objective: to evaluate the bone healing of dental alveoli with PRP obtained using single or double centrifugation in smokers. methodology: extraction of mandibular third molars was performed in a st...