Detección de anticuerpos anti-Mycobacterium avium subsp. paratuberculosis (MAP) en venados silvestres en Colombia / Detection of anti-Mycobacterium aviumsubsp. paratuberculosis antibodies in wild deer in Colombia

RESUMEN Objetivo. Determinar la presencia de anticuerpos anti-Mycobacterium avium subsp. paratuberculosis (MAP) en venados de cola blanca (Odocoileus virginianus) y venados de páramo (Mazama rufína), capturados en las regiones de la Orinoquía y el Caribe en Colombia. Materiales y métodos. Un total de 44 muestras de suero sanguíneo de venados de las especies M. rufína y O. virginianus fueron colectadas en condiciones de campo entre 2014 y 2016. Se utilizó un kit comercial de ELISA para la detección de anticuerpos anti-MAP. Un animal se consideró positivo a ELISA cuando la relación muestra-positivo (S/P%) fue > 0.4, según lo recomendado por el fabricante. Resultados. El 50% (22/44) de los animales muestreados resultaron positivos, lo que corresponde a 10 hembras y 12 machos. Un 81.8% (18/22) y un 77.3% (17/22) de estos animales seropositivos fueron capturados en la región de la Orinoquía y fueron reportados como adultos, respectivamente. Conclusiones. No se sabe cómo o cuándo se introdujo MAP en la población de ciervos colombianos en las regiones de estudio. La hipótesis más plausible para explicar la presencia de anticuerpos anti-MAP en estas poblaciones silvestres es la transmisión por contacto con el ganado bovino infectado, ya que en ambas regiones estas especies comparten pasturas. Este es el primer estudio en explorar la infección por MAP en animales silvestres en Colombia. Estos hallazgos respaldan la necesidad de realizar más estudios utilizando técnicas de diagnóstico directo, y aproximaciones investigativas que permitan la definición de vínculos en la dinámica de la infección entre mamíferos silvestres y domésticos en Colombia.

ABSTRACT Objective. To determine the presence of anti-Mycobacterium avium subsp. paratuberculosis (MAP) antibodies in white-tailed deer (Odocoileus virginianus) and red brocket deer (Mazama rufína), captured in the Orinoquía and Caribbean regions in Colombia. Materials and methods. A total of 44 blood serum samples from deer of species M. rufina and O. virginianus were collected under field conditions between 2014 and 2016. An ELISA commercial kit was used to detect anti-MAP antibodies. An animal was considered ELISA-positive at a sample-to-positive ratio (S/P%) of > 0.4, as recommended by the manufacturer. Results. The 50% (22/44) of the animals were positive, corresponding to 10 females and 12 males. An 81.8% (18/22) and 77.3% (17/22) of these seropositive animals were captured in the Orinoquía region and were reported as adults, respectively. Conclusions. It is not known how or when MAP was introduced in the Colombian deer population in the study regions. The most plausible hypothesis to explain the presence of antibodies against MAP in these wild populations is transmission by contact with infected bovine cattle since, in both regions, these species share pastures. This is the first study to explore MAP infection in wild animals in Colombia. These findings support the need for further studies using different direct diagnostic techniques and research approaches that allow the definition of links in the infection dynamics between wild and domestic mammals in Colombia.

[Spinal cord injury due to suicide attempt, psychiatric profile and functional disability]. / Lesion medular por intento de suicidio, perfil psiquiatrico y discapacidad funcional.

INTRODUCTION: Studies published in other countries indicate that 1.6-3% of spinal cord injuries are acquired due to suicide attempt, the majority being produced by precipitation in patients with previous psychiatric disorders. AIMS: To determine the frequency of attempted suicide as a cause of spinal cord injuries in a neurorehabilitation hospital and to describe the characteristics of these patients in psychiatric terms and functional disability. PATIENTS AND METHODS: Retrospective study in which all patients with spinal cord injuries due to suicide attempt in a period of 15 years in a neurorehabilitation hospital were reviewed. RESULTS: Suicide attempt caused 2% (n = 61) of spinal cord injuries in our population. Although 93% of the patients were diagnosed with psychiatric pathology, 60% were linked to mental health facilities and only three consulted for emergency the days before the precipitation. Six attempts were made in the context of psychiatric services and 26% of patients had made previous attempts. The most frequent medical diagnosis was paraplegia associated with fractures in the lower extremities and chest trauma. CONCLUSIONS: Precipitation due to suicide attempt causes 2% of spinal cord injuries, with depression and psychotic disorders being the most prevalent psychiatric disorders. After the rehabilitation period, this population requires special attention from the mental health teams since they combine risk factors to commit suicide such as the history of previous attempts and the presence of a chronic disabling condition.

TITLE: Lesion medular por intento de suicidio, perfil psiquiatrico y discapacidad funcional.Introduccion. Estudios realizados en otros paises señalan que el 1,6-3% de las lesiones medulares se adquieren por intento de autolisis, y la mayoria se producen por precipitacion. Objetivos. Determinar la frecuencia de intento de suicidio como causa de lesion medular en un hospital de neurorrehabilitacion y describir las caracteristicas de estos pacientes en terminos psiquiatricos y de discapacidad funcional. Pacientes y metodos. Estudio retrospectivo en el que se revisaron todos los pacientes con lesion medular por intento de autolisis en un periodo de 15 años en un hospital de neurorrehabilitacion. Resultados. El intento de autolisis ocasiono el 2% de las lesiones medulares en la muestra (n = 61). El 93% de los pacientes estaba diagnosticado de patologia psiquiatrica y el 26% habia realizado tentativas previas. Aunque el 60% estaba vinculado a salud mental, solo tres consultaron por urgencias dias antes de la precipitacion y seis realizaron la tentativa en el contexto de servicios psiquiatricos. El diagnostico mas frecuente fue la paraplejia asociada a fracturas en las extremidades inferiores y traumatismos toracicos. Conclusiones. La precipitacion por intento de autolisis provoca el 2% de las lesiones medulares, y la depresion y los trastornos psicoticos son las patologias psiquiatricas previas mas prevalentes. Tras el periodo de rehabilitacion, esta poblacion requiere especial atencion por parte de los equipos de salud mental, ya que combina factores de riesgo para cometer suicidio, como la historia de tentativas previas, y la presencia de una condicion cronica discapacitante.

In vitro and in vivo effect of flutamide on steroid hormone secretion in canine and human inflammatory breast cancer cell lines.

The aim was to study the effects of flutamide on cell proliferation, in vivo tumour growth and steroid production in canine and human IBC cell lines. IPC-366 and SUM149 cell cultures were exposed to flutamide concentrations for 72 hours. Additionally, IPC-366 and SUM149 xenotransplanted mice were treated subcutaneously with flutamide 3 times a week for 2 weeks. Steroid hormones determination in culture media, serum and tumour homogenates (pregnenolone, progesterone, androstenedione, testosterone, dihydrotestosterone, 17ß-oestradiol and oestrone sulphate) were assayed by EIA. in vitro cell proliferation percentages showed a decrease in all flutamide dosages in IPC-366 and SUM149. in vivo flutamide reduced tumour size by 55% to 65%, and metastasis rates decreased. In treated groups, androgen levels in culture media, serum and tumour homogenates were increased as oestrogen levels decreased. These results suggest that flutamide treatment inhibits cell proliferation and promotes tumour reduction by increasing androgen levels and also support future therapy approaches.

Diez años de la regulación de los productos de uso y consumo humano en el Instituto Nacional de Higiene "Rafael Rangel" (2008-2018) / Ten years of the sanitary regulation of the products of use and human consumption in the National Institute of Hygiene "Rafael Rangel" (2008-2018)

La Gerencia Sectorial de Registro y Control se crea en el año 1993 con el objetivo de proteger la salud y la vida de la población Venezolana, estando conformada por la División de Control de Medicamentos y Cosméticos, la División de Control de Alimentos y la División de Control Nacional de Productos Biológicos. Esta Gerencia viene a llenar un vacío legal existente en materia de salud y entre sus funciones se encuentran: •Otorgar el Registro Sanitario, Renovación y Cambios Post- Registro a los Medicamentos (Especialidades Farmacéuticas y Productos Biológicos) comercializados en el país, previa evaluación de su calidad, seguridad y eficacia. •Realizar el Control Sanitario de los medicamentos. •Evaluar con fines de registro y control sanitario los alimentos, productos naturales, cosméticos, productos médicos y otros productos de uso y consumo humano. •Evaluar los Protocolos de Investigación Clínica de Medicamentos. •Efectuar la Farmacovigilancia de los medicamentos distribuidos a nivel nacional. •Evaluar el desempeño en Serología de los Bancos de Sangre del país. •Coordinar la Red Venezolana de Laboratorios de Análisis de Alimentos. •Participar en las Redes Internacionales de Armonización y Cooperación en el área de competencia.

The Sectorial Management of Registration and Control was created in 1993 with the objective of protecting the health and life of the Venezuelan population, being formed by the Division of Control of Medicines and Cosmetics, the Division of Food Control and the Division of National Control of Biological Products. This Management comes to fill an existent legal void in matter of health and between its functions they are: •Grant the Sanitary Registration, Renewal and Post-Registration Changes to Drugs (Pharmaceutical Specialties and Biological Products) marketed in the country, after evaluating their quality, safety and efficacy. •Carry out the Sanitary Control of medicines. •Evaluate for sanitary registration and control purposes food, natural products, cosmetics, medical products and other products for human use and consumption. •Evaluate the Clinical Drug Resechar Protocols. •Carry out pharmacovigilance of medicines distributed nationwide. •Evaluate the performance in Serology of the Blood Banks of the country. •Coordinate the Venezuelan Network of Food Analysis Laboratories. •Participate in the International Networks of Harmonization and Cooperation in the eaar of competence

Diagnostic ability of Humphrey perimetry, Octopus perimetry, and optical coherence tomography for glaucomatous optic neuropathy.

PurposeTo evaluate and compare the diagnostic accuracy of the Humphrey Field Analyzer (HFA), Octopus perimetry, and Cirrus OCT for glaucomatous optic neuropathy.MethodsEighty-eight healthy individuals and 150 open-angle glaucoma patients were consecutive and prospectively selected. Eligibility criteria for the glaucoma group were intraocular pressure ≥21 mm Hg and glaucomatous optic nerve head morphology. All subjects underwent a reliable standard automated perimetry with the HFA and Octopus perimeter, and were imaged with the Cirrus OCT. Receiver-operating characteristic (ROC) curves were plotted for the threshold values and main indices of the HFA and Octopus, the peripapillary retinal nerve fiber layer thicknesses, and the optic nerve head parameters. Sensitivities at 85 and 95% fixed-specificities were also calculated. The best areas under the ROC curves (AUCs) were compared using the DeLong method.ResultsIn the glaucoma group, mean deviation (MD) was -5.42±4.6 dB for HFA and 3.90±3.6 dB for Octopus. The MD of the HFA (0.966; P<0.001), mean sensitivity of the Octopus (0.941; P<0.001), and average cup-to-disc (C/D) ratio measured by the Cirrus OCT (0.958; P<0.001) had the largest AUCs for each test studied. There were no significant differences among them. Sensitivities at 95% fixed-specificity were 82% for pattern standard deviation of the HFA, 81.3% for average C/D ratio of OCT, and 80% for the MD of the Octopus.ConclusionsHFA, Octopus, and Cirrus OCT demonstrated similar diagnostic accuracies for glaucomatous optic neuropathy. Visual field and OCT provide supplementary information and thus these tests are not interchangeable.

Isoflavones and their effects on the onset of puberty in male Wistar rats.

This study was performed to determine how two of the most important isoflavones, genistein and daidzein, affect the gonadal axis in male prepuberal rats. One hundred and seventy-five prepuberal male Wistar rats were allocated into seven groups: one control group and six experimental groups that were orally administered a high or low dose of genistein, daidzein or a mixture of both. Testosterone determination was assayed by EIA. The testes and body weights were measured, and the histology of the epididymis with the sperm content and epididymal sperm count were evaluated. In the control group, we observed an increase in the serum testosterone levels (>2.5 ng ml(-1) ) at the third week (52 days), which corresponded to the onset of puberty in these rats. The same increase in serum testosterone levels was observed at the fourth week in rats that received low doses of isoflavones; therefore, we concluded that the onset of puberty was delayed. At high doses, there was no significant increase in testosterone levels, which could be related to the fact that these male rats did not reach puberty. These findings were supported by the results obtained from the analysis of the epididymal content as well as the testes/body weight ratio.

Behavioral scales used in severe and moderate traumatic brain injury.

UNLABELLED: Neurobehavioral disorders are common consequences of traumatic brain injury (TBI) that should be objectively assessed in this population. The use of scales allows us to unify terms both in clinical practice and investigative work; it also constitutes a useful guide in clinical interviews and makes it possible to see outcome changes in patients with or without intervention. The aim of this study is to review the most frequently neurobehavioral scales used to measure the non-cognitive disorders of conduct in TBI patients. METHOD: A systematic and descriptive literature review was done in Medline, without time limit, which focused on scales applied to behavioral disorders in moderate and severe TBI patients. RESULTS: Ninety articles were selected for the final review and thirty-seven different scales were identified. Seven of these instruments represent sixty-five percent of all behavioral scales applied in the studies collected and were selected for the present review. There are scales that are more general and include a wide range of neurobehavioral symptoms, like the Neurobehavioral Rating Scale and the Neuropsychiatric Inventory. On the opposite, there are questionnaires that focus on specific symptoms like aggressiveness, agitation and apathy such as the Agitated Behavior Scale or the Apathy Evaluation Scale. The forms for caregiver or staff were the most prevalent in our review. The most representative behavioral scales applied to moderate and severe TBI patients were analyzed using clinical useful, covered domains, item descriptions, administration procedures and psychometric properties.

The effects of isoflavones on androgens and glucocorticoids during puberty on male Wistar rats.

Isoflavones are the most common phytoestrogens found in human diets. However, it is still not clear whether isoflavones have effects on the reproductive and the endocrine systems under normal dietary intake and overdose. The aim of this study was to determine how the most important isoflavones, genistein and daidzein, affect androgen and glucorticoid levels on male prepuberal rats. A hundred and seventy-five 30-day-old male Wistar rats were dosed orally by stomach tube every day for 35 days, with saline solution, low and high doses of genistein, daidzein and a mixture of both. Serum samples were analysed by an enzyme immunoassay for hormone determinations. In control group, there was a peak of testosterone (T) and dihydrotestosterone levels associated to the onset of puberty, at the third week. However, in low-dose groups, the same peak was found at the fourth week (p < 0.05), indicating a delay in the onset of puberty in these groups. Moreover, high doses groups serum androgen levels were significantly lower (p < 0.05) than the control group from the first week until fifth week. This fact was supported by a epididymal histological analysis that indicate in low doses there were several content of spermatozoa at fourth week and in high doses there were few content of spermatozoa. Besides, corticosterone levels followed the same pattern of androgens in all groups. We can conclude that oral administration of isoflavones in male rats decreased the secretion of androgens and glucocorticoids causing a delay in the onset of puberty and may cause physiological and developmental problems.

Zoonosis transmitidas por animales silvestres y su impacto en las enfermedades emergentes y reemergentes: [revisión] / Zoonotic transmitted by wild animals and its impact on emerging and re-emerging diseases: [review]

Las enfermedades emergentes y reemergentes originadas desde animales de vida silvestre, pueden ser transmitidas a las poblaciones humanas por contacto directo o por vectores. Las zoonosis determinan una gran problemática social epidemiológica. La relación que tiene las enfermedades emergentes y reemergentes está ligada a la pérdida de la biodiversidad por factores antropogénicos, debido a la destrucción de hábitats naturales, el tráfico de fauna y a la pérdida de diversidad genética. Todos estos aspectos juegan un papel en la aparición de las patologías de origen infeccioso. Esta revisión intenta acercarse al conocimiento de las zoonosis transmitidas por animales silvestres y su impacto en las enfermedades emergentes y reemergentes.

Amblyomma dissimile (acari: ixodidae) parásito de boa constrictor en Colombia / Amblyomma dissimile (Acari: Ixodidae) parasite of boa constrictor in Colombia

Objetivo. Describir algunas garrapatas encontradas en dos ejemplares de Boa constrictor, llevados al Centro de Atención y Valoración de Fauna Silvestre en Montería, Córdoba, Colombia. Materiales y métodos. Se recolectaron 37 garrapatas provenientes de dos individuos adultos de Boa constrictor, los parásitos fueron conservados en alcohol al 70% y posteriormente identificados mediante diversas claves taxonómicas. Resultados. Todas las garrapatas fueron identificadas como Amblyomma dissimile, de las cuales, 9 fueron hembras, 24 machos y 4 ninfas. Conclusiones. La identificación de ectoparásitos en especies de Boa c. constrictor contribuye a mantener adecuadamente esta especie en cautiverio y provee datos para establecer medidas profilácticas y tratamiento, igualmente, ayuda en el conocimiento de los agentes parasitarios de la fauna silvestre.

[Pharmacotherapy of the cognitive sequelae secondary to traumatic brain injury]. / Farmacoterapia de las secuelas cognitivas secundarias a traumatismo craneoencefálico.

AIM: To review and correlate the most common cognitive disorders secondary to traumatic brain injuries (TBI), the neurobiology of these deficits and their possible modulation by neuropharmacological means. DEVELOPMENT: As of a complex cascade of injuries to the brain, patients with TBI may experience alterations that affect the cognitive domain on different levels and to varying degrees, the most common being alteration of the level of alertness; slowing of the speed at which information is processed; attention, memory and learning deficits; language and communication disorders; and impaired executive functions. Brain damage may be caused by a range of pathological mechanisms, such as focal bruising, diffuse axonal damage, cytotoxic damage and neurotransmitter excitotoxicity. Certain pharmacological agents have an effect on the cognitive functions. Pharmacological agents that improve cognitive performance include dopaminergic agents, psychostimulants, some antidepressants and cholinesterase inhibitors. CONCLUSIONS: Studies into the pharmacological neuromodulation of the cognitive disorders secondary to TBI are currently in the early stages. The information we have available on the neurochemical bases of cognition and cognitive disorders due to TBI suggest that the most important goals of pharmacological intervention in this group of patients are the stimulation of the catecholaminic and cholinergic functions.

The application of Beckman Coulter VCS technology at a major cancer center, with emphasis on the detection of circulating immature plasma cells in plasma cell leukemia.

The St. Vincent's Comprehensive Cancer Center (SVCCC) has a large multiple myeloma program in downtown New York City. The laboratory at SVCCC is an integral part of the diagnosing and monitoring of its myeloma patients. Circulating plasma cells are not a common finding in multiple myeloma. Being able to detect plasma cells in peripheral blood is important because they are a prognostic indicator that correlates with disease progression. Furthermore, the peripheral blood plasma cell population can demonstrate morphologic variability. Immature plasma cells, both plasmablasts and proplasmacytes are associated with more aggressive disease and shortened survival. We encountered 3 multiple myeloma patients with circulating immature plasma cells that appeared as distinct populations on our hematology analyzer's automated white blood cell (WBC) differential. The immature plasma cells, given their unique cellular characteristics, appeared in a common place within the WBC differential scatterplot in each patient. In our laboratory, we have utilized this common graphic pattern to screen for immature plasma cells. This pattern has proven to be a useful tool in our large population of multiple myeloma patients. We have also used examination of the scatterplots in other hematologic malignancies such as chronic lymphocytic leukemia. Using this review policy, the laboratory has been able to achieve a smear review of 25% in our highly abnormal patient population.

[Comparative study of psychiatric disorders in general traumatism and brain injured patients]. / Estudio comparativo de patología psiquiátrica en pacientes con traumatismos generales y traumatismo craneoencefálico.

INTRODUCTION: This study evaluates the presentation of different psychiatric pathologies secondary to traumatic injuries; assessing the presentation frequency and how it correlates with whether it is a brain injury (TBI) or one in a different corporal area. METHODS: The study group consisted of 249 patients, 122 with TBI and 127 with injuries from different body areas. The patients conditions were evaluated at baseline and at 6 and 12 months after the traumatic episode. Psychiatric diagnosis was made using a structured clinical interview and DSM-IV criteria. RESULTS: Depressive and anxiety disorders were observed in frequencies similar to previous reports; without significant differences between TBI and non-TBI groups. The organic change of personality was significantly more frequent among patients with TBI than among the non-TBI with apathy features. There was a significant decrease in quality of life one year after the traumatism in both groups. CONCLUSIONS: Psychiatric disease is a frequent complication of injured patients; and it is associated with deterioration of general health and quality of life. TBI patients have more probability of developing an organic change of personality.