Objectives: To determine whether oral administration of Mimosa pudica (mimosa) leaves ethanol extract modifies fertility in normal rats. Design: Experimental study. Setting: Instituto de Investigaciones Clinicas, Facultad de Medicina, Facultad de Farmacia, Universidad Nacional Mayor de San Marcos, Hospital Nacional Hipolito Unanue, Lima, Peru. Biological material: Albino rats and Mimosa pudica leaves. Methods: Forty-eight animals were divided randomly into groups of six animals each. The first was control and received saline solution 5 mL/kg and the others 50, 250 and 500 mg/kg oral extracts for 28 days. Each group considered 6 males and 6 females together. The animals were killed to observe the presence of fetuses in uterus. FSH, estradiol and progesterone levels were determined in μg /dL in female rats’ blood samples and hormone dosage was done by electrochemoluminiscence method. In...

Objetives: To determine the gastroprotector effect of Copaifera officinalis oil using indomethacin and pyloric ligature in rats. Design: Preclinical study. Setting: Faculties of Medicine, Pharmacy and Biochemistry, National University of San Marcos, Lima, Peru. Biological material: Rats and copaiba oil. Interventions: Copaiba oil was collected in Ucayali, Pucallpa. Cytoprotection was tested with indomethacin considering a normal control group, and indomethacin, copaiba and omeprazole groups. Using visual analogue scale mucosa gastric injuries were referred as those compatible with local necrosis (unviable tissue), hyperemia, flushing, and hemorrhage, and ulcers according to the modified Macallister’s scale. The anti-secretion trial used the pyloric ligature model. Twenty-four albino rats were randomized in three groups: control, copaiba oil 40 mg/kg and omeprazole 10 mg/kg, respectivel...

Objectives: To determine the protective effect of Piper aduncum (matico) leaves ethanol extract and its phytomedicine in capsules in liver cirrhosis induced in rats. Design: Experimental. Location: Faculty of Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru. Biological material: Leaves of Piper aduncum, and Rattus norvegicus, Holtzman strain. Interventions: The leaves were collected in La Merced district, Pasco department. The phytomedicine capsules were prepared from the plant ethanol extract. Cirrhosis was induced with phenobarbital 0.5 mg/mL diluted in drinking water during 15 days, then carbon tetrachloride 0.2mL/kg 1:1 in olive oil orally during 7 days. Blood samples were drawn in order to determine liver profile and malondialdehyde; the animals were sacrificed, extracting the liver for pathology study. Data were evaluated by multivariate techniques with p <0.05. Ma...