Publications by authors named "R Rocha e Silva"

Land use and cover changes lead to fragmentation of the natural habitats of sand flies and modify the epidemiological profile of leishmaniasis. This process contributes to the infestation of adjacent rural settlements by vector sand fly species with different degrees of adaptation, promoting leishmaniasis outbreaks. This study aimed to assess land use and cover changes over a 12-year period and investigate the diversity and abundance of sand fly assemblages in the rural area of Codó, Maranhão State, Brazil.

View Article and Find Full Text PDF

Nicotine is one of the most toxic substances found in cigarettes, but also found in chewing tobacco gum, patches and vaping products (electronic cigarettes). In addition to being a highly addictive chemical, it is capable of reducing fertility in men and women. In the ovaries, it can induce morphological changes and impair the formation of follicles, being a possible cause of changes in the reproductive cycle and anticipation of menopause in women whose mothers smoked during pregnancy.

View Article and Find Full Text PDF

Leishmaniasis is a neglected disease caused by parasites of the genus Leishmania sp. that causes approximately 1 million cases and 650,000 deaths annually worldwide. Its treatment has several limitations mainly due to high toxicity and clinical resistance, and the search for alternatives is highly desirable.

View Article and Find Full Text PDF

Background:  The movement disorder known as hemifacial spasm is characterized by involuntary contractions of the muscles that are innervated by the facial nerve. The treatment of choice for this condition is botulinum toxin injections.

Objective:  To analyze the botulinum toxin dosage in patients undergoing treatment for hemifacial spasm during a 14-year period.

View Article and Find Full Text PDF

Introduction: Intravenous tirofiban (IT) is shown to be potentially effective in acute ischemic stroke (AIS) patients submitted to mechanical thrombectomy, despite its safety and efficacy are not well established. However, there is a lack of evidence on the effects of IT on endovascular thrombectomy (EVT) in patients with AIS due to large artery atherosclerosis (LAA).

Objectives: To assess the safety and efficacy of IT in AIS patients due to LAA submitted to EVT.

View Article and Find Full Text PDF