Introduction. Antioxidants have shown chemopreventive potential in degenerative, inflammatory, autoimmune, oncology and respiratory distress associated pathologies. Objective. To assess the phytochemical and antioxidant properties in vitro by DPPH and ABTS method. Design. Observational analytical. Location. Laboratory of Experimental Pharmacology, Faculty of Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru. Biological/Chemical Material. Aloe vera leaves, Plukenetia volubilis seeds, Caiophora carduifolia leaves-stalks, Cecropia membranacea leaves. Interventions. Observation and analysis of the antioxidant capacity by DPPH-method mean effective concentration (EC50) of the extracts and trolox equivalent antioxidant capacity by the ABTS method. Main outcome measures. Phytochemical preliminary march, antioxidant percent uptake inhibition by DPPH radical, determination of equival...

Introducción: El acemanano presente en las hojas de Aloe vera, es un polisacárido que posee una gran actividad en la regeneración celular y modulación del sistema inmune. Objetivo: Determinar el efecto regenerador óseo del extracto acuoso liofilizado de hojas de Aloe vera (Sábila) sobre la osteotomía mandibular inducida en cobayo. Diseño: Experimental. Lugar: Laboratorio de Farmacología, Facultad de Medicina Humana - UNMSM. Intervenciones: Se utilizó 40 cobayos machos con un peso corporal 1000±120g, se formó 5 grupos aleatoriamente de 8 animales; grupo I: Suero fisiológico al 0,9% (2mL/kg), grupo II: alendronato (0.5mg/kg), los grupos III, IV y V: extracto acuoso liofilizado de hojas de Aloe vera a dosis de 50mg/kg, 250mg/kg y 500mg/kg, respectivamente. Los cobayos fueron sometidos a osteotomía mandibular unilateral. Principales medidas de resultados: Recuento de células p...

Se realizó un estudio experimental, con el objetivo de determinar la influencia de la velocidad de inyección de lidocaína con adrenalina sobre el dolor, signos vitales y periodos anestésicos posteriores al bloqueo del nervio dentario inferior. Para la muestra se contó con la participación de 38 pacientes voluntarios, ASA I; a los que se les administró un cartucho de lidocaína 2% con adrenalina 1:80 000 en 2 ocasiones; según la asiganación aleatoria, a velocidad lenta (0.85mm/seg.) y luego a velocidad rápida (3.4mm/seg.). Se evaluó la magnitud del dolor, los signos vitales y periodos anestésicos mediante el tiempo de inicio de acción, tiempo del pico de acción y duración del efecto. Los resultados indican la reducción del dolor por administración a velocidad lenta (11.6mm) comparado con la velocidad rápida (17.7mm) (p<0.01). No se evidencia la cambios en los signos vita...

La presente investigación tuvo como objetivo evaluar el efecto diurético del extracto etanólico de la corteza de Tabebuia impetiginosa en ratas albinas. Se usaron 36 individuos de 297±33 g de peso corporal, formándose seis grupos experimentales; recibiendo el grupo I: Suero fisiológico al 0,9% (2mL/kg), grupo II: Hidroclorotiazida (20 mg/kg), grupo III: Furosemida (20 mg/kg), los grupos IV, V, y VI: extracto a dosis de 50, 250 y 500 mg/kg, respectivamente. Las ratas fueron colocadas en jaulas metabólicas individuales para recolectar la orina (24h) y cuantificar electrolitos excretados (Na+, K+ y Cl). Concluyéndose que Tabebuia impetiginosa evidencia efecto diurético en ratas.Palabras clave: Diuresis, furosemida, hidroclorotiazida, natriuresis, Tabebuia impetiginosa.

The authors thank Universidad Nacional Mayor de San Marcos for helping to support this research. Cesar Franco-Quino is a doctoral student studying an Epidemiological Researcher Doctorate at Universidad Peruana Cayetano Heredia under FONDECYT/ CIENCIAACTIVA scholarship EF033-235-2015 and supported by training grant D43 TW007393 awarded by Fogarti International Center of the US National Institutes of Health.

Trigeminal neuralgia (TN) is a painful neuropathic condition that involves one or more branches of the trigeminal nerve. The pain produced for the TN is described as a very intense acute pain, stabbing or shooting, as an electric shock that usually occurs of form unilateral and that goes all the way of the nerve involved. It is important to make the opportune diagnosis of the condition of TN for adequately differentiate of some odontogenic painful conditions and to prevent that the patient receive unnecessary treatment. The first line of treatment of the TN is the pharmacological therapy, in which is used as a drug of first choice to carbamazepine. The second line of treatment of TN is the non-pharmacological therapy, where include various options of surgical treatment: etiologic or symptomatic.

Trigeminal neuralgia (TN) is a painful neuropathic condition that involves one or more branches of the trigeminal nerve. The pain produced for the TN is described as a very intense acute pain, stabbing or shooting, as an electric shock that usually occurs of form unilateral and that goes all the way of the nerve involved. It is important to make the opportune diagnosis of the condition of TN for adequately differentiate of some odontogenic painful conditions and to prevent that the patient receive unnecessary treatment. The first line of treatment of the TN is the pharmacological therapy, in which is used as a drug of first choice to carbamazepine. The second line of treatment of TN is the non-pharmacological therapy, where include various options of surgical treatment: etiologic or symptomatic.

Neem has become valuable plant in the world which shows the solutions for hundreds to thousands problems. Azadirachta indica (Neem) is a rapidly growing evergreen well known tree found Pada generally in various regions of world like America, Africa and India. It has been widely used in Chinese, Ayurveda and Unani medicines across the world especially in Asians countries for the prevention and treatment of diseases. The different parts of neem plant contain biological compounds responsible for antibacterial, antiviral and antifungal activities. It is considered as safe medicinal plants and modulates the numerous biological processes without any adverse effect. Neem tree produces some active compounds which contain biological activities, parts of neem tree such as Root, bark, leaf, flower, seed and fruit together possesses biological activities. Various compounds have been obtained from va...

Background: Currently, gastric cancer (GC) is considered a public health problem worldwide. Using medicinal plants for the prevention of chronic diseases such as cancer constitutes new alternatives in traditional medicine. Oenothera rosea (OR) could be an option, but it needs to be evaluated. Aim: The main objective of this study was to evaluate the protective effect of OR extract on N-methyl-N-nitrosourea (NMU)-induced GC in rats. Methods: In total, 80 male Holtzman rats were randomized into five groups. Group A received the saline solution (5mL/kg), group B received NMU 500 μg/kg (cancer inductor) by oral administration for 16 weeks, and groups C, D, and E were treated with OR extract (100, 200, and 300 mg/kg, respectively) and NMU in order to evaluate the preventive effect on cancer induced by NMU for 16 weeks. Blood and histological samples of stomachs were collected to determine hi...

Objective. Evaluate the effect of zoledronic acid and hydroxocobalamin treatment on alveolar bone microarchitecture in mice with induced periodontitis and osteoporosis. Methods. Experimental design in preclinical phase. Sixteen female mice were included in which osteoporosis was induced by total ovariectomy and periodontitis was also induced by inflammation by 5/0 black silk ligation of the maxillary second molar, all protocols were performed under general anesthesia. The mice were distributed into 4 groups: control, treatment with zoledronic acid, treatment with hydroxocobalamin and combined treatment. At 16 weeks, euthanasia was performed, dissection was performed for evaluation by microtomography; determining bone mineral density (BMD), bone volume (BV/TV), trabecular thickness (Tb.Th), number of trabeculae (Tb.N), trabecular separation (Tb.Sp); descriptive and bivariate analysis was ...

The aim of this research was to compare systemic administration of azitromicin associated to root scaling and planning to the use of chlorhexidine mouth rinses associated to scaling and root planning, and scaling and root planning only for reducing probing depth and clinical attachment in adult patients with diagnosed of chronic periodontitis. For the trial 42 individuals with chronic periodontitis were selected, they were randomly distributed in three groups as follows: group A associated therapy of azitromicin with root scaling and planning; group B associated therapy with chlorhexidine and root scaling and planning; and group C root scaling and planning only. Probing depth and clinical attachment were recorded before treatment and every month for the next 6 months. The results showed better reduction in probing depth (before treatment: 5.70 ± 0.42 mm; during treatment: 1st month: 2.2...

El objetivo de la investigación fue comparar la eficacia de la administración sistémica de azitromicina asociada al raspaje y alisado radicular con la administración de enjuagatorios con clorhexidina asociados al raspaje y alisado radicular y con el tratamiento con sólo raspaje y alisado radicular, para reducir la profundidad de sondaje periodontal y mejorar los niveles de adherencia clínica en pacientes adultos con periodontitis crónica. Participaron 42 pacientes con periodontitis crónica, distribuidos aleatoriamente en tres grupos, siendo grupo A: azitromicina sistémica asociada a raspaje y alisado radicular; B: enjuagatorios con clorhexidina asociados al raspaje y alisado radicular; C: sólo raspaje y alisado radicular. Se evaluó la profundidad de sondaje periodontal y el nivel de adherencia clínica, antes de iniciar el tratamiento y luego cada mes durante los 6 meses poste...

Cesar Franco-Quino is a doctoral student studying an Epidemiological Research Doctorate at Universidad Peruana Cayetano Heredia under FONDECYT/CIENCIACTIVA scholarship EF033-235-2015 and supported by training grant D43 TW007393 awarded by Fogarti International Center of the US National Institutes of Health.

The objective of this study was to determine the effects of diclofenac, etoricoxib, ibuprofen and paracetamol on the magnitude of orthodontic tooth movement. 50 Holtzman rats participated in 5 groups of 10 rats each. At the beginning of study the distance between the angles inciso-distals of both maxillary incisive was measured in each animal, using a caliper, and immediately an orthodontic device with a reciprocal action force of 35 g. was adhered to them. Each group received different treatments intraperitoneally (A: NaCl, control group, B: diclofenac, C: etoricoxib, D: ibuprofen, E: paracetamol) for 5 days. In all controls made the 1st, 3rd, 5th and 7th days, interincisive distance was significantly lower in the ibuprofen and diclofenac groups, without significant difference in the etoricoxib and paracetamol groups; all compared with control group. It was shown that administration of ...

El objetivo del presente estudio fue determinar los efectos de diclofenaco, etoricoxib, ibuprofeno y paracetamol sobre la magnitud del movimiento dentario ortodóntico. Participaron 50 ratas Holtzman distribuidas en 5 grupos de 10 ratas cada uno. Al inicio del trabajo, en cada uno de los animales, se midió la distancia entre los ángulos incisodistales de los incisivos maxilares empleando un calibrador, e inmediatamente se adhirió un dispositivo ortodóntico con una fuerza de acción recíproca de 35 g en dichos incisivos. Cada grupo recibió tratamientos diferentes por vía intraperitoneal (A: NaCl, grupo control, B: diclofenaco, C: etoricoxib, D: ibuprofeno, E: paracetamol) durante 5 días. En todos los controles hechos al 1er, 3er, 5to y 7mo día, la distancia interincisiva fue significativamente menor en los grupos ibuprofeno y diclofenaco, y sin diferencia significativa en los gru...

Ludwig’s angina is a rapidly progressive cellulitis that involves sub mandibular, sub lingual and submental spaces bilaterrally. This was due mainly to per apical infections of the second and third mandible molars. Due to the rapid advancement of the clinical (which in certain occasions could even threaten the patient’s life) it is extremely important to know clearly the criteria for early diagnosis of Ludwig’s angina, which will enable us to provide the most appropriate treatment to halt the progress of the clinical and will prevent the onset of life-threatening complications.

Ludwig’s angina is a rapidly progressive cellulitis that involves sub mandibular, sub lingual and submental spaces bilaterrally. This was due mainly to per apical infections of the second and third mandible molars. Due to the rapid advancement of the clinical (which in certain occasions could even threaten the patient’s life) it is extremely important to know clearly the criteria for early diagnosis of Ludwig’s angina, which will enable us to provide the most appropriate treatment to halt the progress of the clinical and will prevent the onset of life-threatening complications.