ABSTRACT
RESUMO Artigo de revisão que trata da importância do tratamento da xerose e de fissuras nos pés de pacientes com diabetes mellitus. Essas fissuras se não tratadas, constituem porta de entrada para infecções e podem resultar na formação de úlceras, que são a causa mais comum das amputações de extremidades de causa não traumática. Por isso a prevenção de fissuras nos pés de diabéticos é fundamental, já que a cicatrização é um processo complicado nesses pacientes, devido à hiperglicemia. Aborda sobre produtos usados no tratamento de xerose e fissuras e o crescente interesse de pesquisadores e do mercado no uso de fitoterápicos com esse objetivo.
ABSTRACT A review article that deals with the importance of treating xerosis and fissures in the feet of patients with diabetes mellitus. These wounds can be a gateway to infections and may result in the formation of ulcers, if untreated. The ulcers are the most common cause for the amputations of extremities at non-traumatic cases. For this reason, the prevention of fissures in the feet of diabetic patientsis basal, since healing is a complicated process in this patients because of their hyperglycemia symptom. This article addresses the products employed in the therapy of xerosis and fissures, and also investigates the increasing interest of researchers and market in the application of phytotherapic medicines for this purpose.
Subject(s)
Plants, Medicinal/metabolism , Wound Healing , Xerostomia/diagnostic imaging , Diabetes Mellitus/pathology , Craving , Ichthyosis/physiopathology , TherapeuticsABSTRACT
Teas of Vernonia condensata Baker (Asteraceae) are widely used in Brazil for gastro-intestinal disorders and to treat several other diseases. In this study, we evaluated the acute toxicity, embryotoxicity and mutagenicity of a lyophilized aqueous extract (LAE) from V. condensata leaves. Single doses of LAE, up to 5000 mg/kg body weight, were given orally or intraperitoneally to male and female Swiss albino mice. No toxicity was observed after oral administration. The "Approximate Lethal Dose" after intraperitoneal injections was 3400 mg/kg for males and 5000 mg/kg for females. Embryotoxicity was investigated in Han:NMRI mice. LAE (0, 500 and 2000 mg/kg/day) was given by gavage on days 10, 11 and 12, and dams were submitted to caesarean sections on day 18 of pregnancy. Fetuses were weighed, examined for externally visible malformations, and evaluated for skeletal anomalies. Except for a slight reduction of fetal body weight accompanied by signs of delayed ossification at the highest dose, no other embryotoxic effect was noted in the exposed offspring. LAE-induced mutagenicity was evaluated in the Salmonella/microsome assay without and with S9 mixture. LAE, tested up to 5000 microg/plate, was not mutagenic to tester strains TA97a, TA98 and TA100. Results therefore suggest that V. condensata aqueous extracts present low acute toxicity and pose neither teratogenic nor mutagenic risks.
Subject(s)
Asteraceae/chemistry , Mutagens/toxicity , Plants, Medicinal/chemistry , Teratogens/toxicity , Animals , Female , Male , Mice , Mutagenicity Tests , Plant Extracts/toxicity , Plant Leaves/chemistry , Pregnancy , Salmonella typhimurium/drug effects , Salmonella typhimurium/genetics , Sex Characteristics , Weight Gain/drug effectsABSTRACT
18 girls from an orphanage (Orfanato Santo Antônio) in Niterói presented tinea capitis due to Trichophyton tonsurans (15 cases-83.3%) and Microsporum canis (3 cases-26.7%). Comments are made about clinical, mycological and therapeutic aspects of this microepidemic.