This study investigated whether long-term methylmercury exposure aggravates apical periodontitis in Wistar rats. Thirty-two male rats (90 days old) were randomized into four groups (n = 8): control, methylmercury, apical periodontitis, and methylmercury + apical periodontitis. Methylmercury was administered daily by intragastric gavage (0.04 mg/kg/day) for 60 days, while apical periodontitis was induced on day 32 by pulp expos...

The Ferruginous Rupestrian Grassland is an ecosystem that harbors endemic and endangered species, such as Sinningia rupicola . The low germination rate and restricted habitat of this species increase its risk of extinction, making the development of conservation strategies essential. Micropropagation is a recommended technique in such cases and, although effective for seedling production, in vitro cultivation requires careful...