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In August 2021, two juvenile male Antarctic fur seals (Arctocephalus gazella) stranded in the southeastern Brazilian coast and were referred to rehabilitation centers. The animals presented increased body temperature, prostration, respiratory distress and despite treatment died. A necropsy following a standardized protocol was performed, and formalin-fixed tissues were processed for microscopic examination. Samples were screened for morbillivirus, herpesvirus, and Brucella spp. by molecular analyses (PCR, RT-PCR). Bacteriological culture was performed in samples collected from the lungs, trachea, and lymph nodes of both cases. The main histopathologic findings were of infectious nature, including multifocal necrotizing and fibrinous mixed interstitial pneumonia, bronchiolitis, and bronchitis, with intralesional myriad bacteria associated with vascular fibrinoid necrosis. Pseudomonas aeruginosa was isolated from tracheal and lung swabs of Case 1, and Klebsiella oxytoca was found in nostril swabs, tracheobronchial lymph nodes, and lung of Case 2. Gammaherpesvirus infection was detected in both cases, and the sequences retrieved were classified into the genus Percavirus. All tested samples were PCR-negative for Brucella spp. and morbillivirus. We hypothesize that the deficient immunological status in association with starvation predisposed the reactivation of herpesvirus and secondary bacterial co-infections. To the authors' knowledge, this is the first molecular detection of herpesvirus in an Antarctic pinniped. These findings reinforce that Otariid gammaherpesvirus circulating in the Southern Hemisphere are likely endemic in the Arctocephalus genus. This report contributes to the current knowledge of health aspects affecting wild pinnipeds, especially in the poorly studied Antarctic species.
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Otárias , Infecções por Herpesviridae , Animais , Brasil , Otárias/virologia , Infecções por Herpesviridae/veterinária , Infecções por Herpesviridae/virologia , Masculino , Sepse/veterinária , Sepse/microbiologia , Sepse/virologiaRESUMO
Cryptosporidium parvum and Blastocystis hominis are foodborne parasites known for causing diarrhea. They accumulate in mussels grown on contaminated water bodies, due to the discharge of treated sewage from sewage treatment plants (STP). Despite this, some countries like Chile do not include these parasites in the control or monitoring of sewage water. The objective of this research was to evaluate the contamination of C. parvum. and B. hominis from treated sewage (disinfected by chlorination) and Cholga mussels in a touristic rural cove from the bay of Concepción. Cholga mussels from commercial stores and a treated sewage sample were analyzed. Cryptosporidium spp. was identified by Ziehl-Neelsen-Staining (ZNS) and C. parvum by direct-immunofluorescence assay (IFA) from ZNS-positive samples. Blastocystis hominis was identified by PCR using locus SSU rDNA. C. parvum and B. hominis subtype ST3 were found in 40% and 45% of Cholga mussel samples, respectively, and both parasites were identified in the treated sewage. Blastocystis hominis SSU rDNA gene alignment from Cholga mussels and treated sewage showed 89% of similarity, indicating that could be the same parasite in both samples. We describe the first evidence of possible contamination with these parasites from treated sewage to Cholga mussel suggesting an environmental contamination with high human risk. Based on these results, further studies will consider all the rural coves and STP from the bay to prevent possible contamination of these parasites.
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The brain-derived neurotrophic factor (BDNF) is a member of the nerve growth factor family which is generated mainly by the brain. Its main role involve synaptic modulation, neurogenesis, neuron survival, immune regulation, myocardial contraction, and angiogenesis in the brain. Together with the encephalon, some peripheral tissues synthesize BDNF like skeletal muscle. On this tissue, this neurotrophin participates on cellular mechanisms related to muscle function maintenance and plasticity as reported on recent scientific works. Moreover, during exercise stimuli the BDNF contributes directly to strengthening neuromuscular junctions, muscle regeneration, insulin-regulated glucose uptake and ß-oxidation processes in muscle tissue. Given its vital relevance on many physiological mechanisms, the current mini-review focuses on discussing up-to-date knowledge about BDNF production in skeletal muscle and how this neurotrophin impacts skeletal muscle biology.
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Pseudomonas aeruginosa is a prominent member of emerging waterborne pathogens. The environmental reservoirs of multi-resistant phenotypes and other virulence factors in this bacterium are poorly understood. Our study aimed to determine the virulence properties of P. aeruginosa isolated from Roraima Sur Cave (RSC) waters at Guayana Highlands. Based on the best identification at species level by biochemical tests, 16S rRNA sequencing and phylogenetic inferences, one RSC isolate named LG11 was characterized for virulence properties in comparison with P. aeruginosa reference strains. PCR amplification of alginate, elastase, exoenzyme S, exotoxin A, neuraminidase and Quorum-Sensing genes showed a high virulence potential in LG11. This isolate demonstrated multi-resistance to ceftriaxone, tigecycline and imipenem. Pyocyanin production was greater in LG11 (0·478 µg ml-1 ) than the strain ATCC 10145 (0·316 µg ml-1 ), but the highest pigment concentration (2·140 µg ml-1 ) was displayed by the clinical strain CVCM 937 (P = 0·000175). Pronounced biomass production on granite and glass (P < 0·05) and well-developed biofilms indicated the ability of P. aeruginosa from RSC to colonize surfaces found in human and healthcare environments. These data suggest that waters from pristine ecosystems such as RSC could be reservoirs of this opportunistic bacterium carrying important virulence properties with potential epidemiological implications. SIGNIFICANCE AND IMPACT OF THE STUDY: This study shows for the first time the occurrence of virulence genes and multi-resistance to antimicrobials in Pseudomonas aeruginosa isolated from cave waters at Guayana Highlands. These findings, together with the biofilm formation on surfaces found in human and healthcare settings, suggest public health risks and the potential of these virulence properties to be transferred from or to native populations in waters. Our results provide important insights to the current knowledge of P. aeruginosa in the environment, setting the basis for future studies driven to assess reservoirs of multi-resistant bacteria and virulence features unknown in pristine ecosystems.
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Cavernas/microbiologia , Pseudomonas aeruginosa/efeitos dos fármacos , Pseudomonas aeruginosa/patogenicidade , Fatores de Virulência/genética , Microbiologia da Água , Antibacterianos/farmacologia , Biofilmes/crescimento & desenvolvimento , Farmacorresistência Bacteriana/efeitos dos fármacos , Ecossistema , Testes de Sensibilidade Microbiana , Filogenia , Pseudomonas aeruginosa/isolamento & purificação , Piocianina/biossíntese , Percepção de Quorum , RNA Ribossômico 16S/genética , Venezuela , VirulênciaRESUMO
The lowland tapir (Tapirus terrestris) is the largest land mammal in South America. The species faces steady population decline due to poaching, habitat loss and fragmentation, road-kill, pesticide pollution, competition with domestic livestock and fires, among other threats. The lowland tapir is currently listed as vulnerable to extinction. Little information is available about natural disease processes for the species. This study aimed to report the pathological findings recorded in a cohort of 35 lowland tapirs killed by motor vehicle collision (MVC) on highways of Mato Grosso do Sul State, Brazil, between 2015 and 2018. The main gross pathological findings were those associated with MVC, primarily involving skeletal fractures and internal multiorgan damage with extensive bleeding and/or severe central nervous system injury. The most prevalent concurrent histopathological findings, unrelated to the cause of death, were: adrenal gland degeneration, necrosis and loss of fascicular and reticular cells with replacement fibrosis and cortical atrophy (9/15; 60%); interstitial pneumonia (20/34; 59%); glossitis (9/24; 38%); pulmonary anthracosis (12/34; 35%); colitis (9/28; 32%); and cholangitis/pericholangitis (9/35; 26%). The aetiopathogeneses and clinicopathological significance of some of these findings are unclear; however, parasitic infections appear to be common. Our results highlight the importance of wildlife health information obtained through the study of carcasses of roadkills.
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Animais Selvagens , Perissodáctilos , Acidentes de Trânsito , Animais , BrasilRESUMO
RESUMEN OBJETIVO: el propósito es describir el efecto de los corticoides prenatales en la malformación congénita de la vía aérea pulmonar (MCVAP) mediante la evaluación secuencial del CVR y mostrar la experiencia en nuestro centro de terapia fetal. MATERIALES Y MÉTODOS: serie de casos en la cual se incluyeron ocho pacientes del Hospital de San José; con diagnóstico de MCVAP; se evaluó edad gestacional, el CVR (longitud x largo x ancho, en cms de la masa) x 0.523/circunferencia cefálica) como factor pronóstico, la desviación mediastínica, la presencia de hidrops, el tipo de MCVAP y la localización. Se aplicó betametasona a dosis de inducción de madurez pulmonar fetal. Se realizó la medición del CVR pre y pos tratamiento. Los datos obtenidos fueron analizados mediante el software estadístico SPSS (Versión 11.0 SPSS Inc. Chicago, IL). Se utilizaron la prueba Wilcoxon y el índice de correlación de Spearman según el caso. Un valor de p<0.05 se consideró significativo. RESULTADOS: ocho pacientes fueron incluidas. La mediana de la edad gestacional fue 30.5 semanas. Cuatro casos fueron tipo I, dos tipo II y dos tipo tres. Cuatro casos presentaron desviación mediastinal. Cinco casos fueron derechos y uno bilateral. Ningún caso presentó hidrops. El CVR pre tratamiento fue 0,93(RIQ:0,17-2,1) y pos tratamiento 0,55(RIQ:0,07-1,39). Se encontró una disminución del CVR pos tratamiento en todos los casos (p 0.0117) e índice de correlación de Spearman 0.9524 CONCLUSIÓN: Después de la aplicación de corticoides encontramos una disminución del CVR en todos los casos descritos. El uso de corticoides podría ser parte de la terapia prenatal con miras a mejorar el pronóstico.
ABSTRACT OBJECTIVE: The purpose of this study is to describe the effect of prenatal corticosteroids in the CPAM by sequential evaluation of the CVR, and to show the experience in our fetal therapy center. MATERIALS AND METHODS: Series of cases in which eight patients from the Hospital of San José were included; with diagnosis of CPAM; gestational age was evaluated, CVR (CVR = length x length x width cm, mass) x 0.523 / head circumference) as a prognostic factor, mediastinal shift, hydrops, type of CPAM, location. Betamethasone was applied to fetal lung maturation dose. In all patients underwent CVR measurement pre and post treatment. The data were analyzed using SPSS statistical software (Version 11.0 SPSS Inc. Chicago, IL). The Wilcoxon test and the Spearman correlation index were used according to the case. A value of p <0.05 was considered significant. RESULTS: eight patients were included. The median of gestational age was 30.5 weeks. Four cases were type I, two type II and two type three. Four cases were mediastinal shift. Five cases were rights and one bilateral. No case presented hydrops. The pretreatment CVR was 0,93(RIQ: 0,17-2,1) and post-treatment 0,55(RIQ: 0,07-1,39). We found a decrease in CVR after treatment in all cases (p 0.0117) and Spearman correlation index 0.9524 CONCLUSION: After application of corticosteroids are a reduction in CVR in all the cases described. The use of corticosteroids may be part of prenatal therapy to improve prognosis.
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Humanos , Feminino , Gravidez , Malformação Adenomatoide Cística Congênita do Pulmão/genética , Malformação Adenomatoide Cística Congênita do Pulmão/diagnóstico por imagem , Corticosteroides/uso terapêutico , Gestantes , Hidropisia Fetal , Ultrassonografia , Idade Gestacional , Doenças Fetais/diagnóstico , FetoRESUMO
INTRODUCTION: Clinical studies results show that policosanol (20 mg/day) + aspirin therapy had benefits versus placebo + aspirin to patients with recent non-cardioembolic ischemic stroke. AIM: To analyze the policosanol treatment effects in the hypertensive patients included in two non-cardioembolic ischemic stroke recovery trials. PATIENTS AND METHODS: Hypertensive patients with a modified Rankin Scale (mRS) score 2 to 4 were randomized, within 30 days of onset, to policosanol + aspirin or placebo + aspirin, for six months. The primary outcome was mRS score reduction. RESULTS: One hundred forty two hypertensive patients (mean age: 66 years) were included in the analysis. Policosanol + aspirin decreased significantly the mRS score mean from the first interim check-up. The policosanol treatment effect did not wear off, on the contrary, even improved after six months therapy. More over, policosanol + aspirin (80.3%) treatment achieved significant results (mRS <= 1), whereas the placebo + aspirin did not (8.5%). Two patients discontinued and four (two from each group) referred mild adverse events. CONCLUSIONS: The treatment for six months with policosanol + aspirin in hypertensive patients who had suffered a non-cardioembolic ischemic stroke proved to be more effective than the placebo + aspirin treatment in the functional recovery of these patients.
TITLE: Efectos del policosanol en la recuperacion funcional de pacientes hipertensos con ictus isquemico no cardioembolico.Introduccion. Los resultados de los estudios clinicos muestran que el tratamiento con policosanol (20 mg/dia) + aspirina produce beneficios frente a placebo + aspirina en pacientes con ictus isquemico no cardioembolico reciente. Objetivo. Analizar los efectos del tratamiento con policosanol en pacientes hipertensos incluidos en dos ensayos de recuperacion de ictus isquemico no cardioembolico. Pacientes y metodos. Pacientes hipertensos que sufrieron un ictus en los 30 dias previos y que, con una puntuacion de 2 a 4 en la escala de Rankin modificada (mRS), se distribuyeron aleatoriamente en dos grupos y recibieron policosanol + aspirina o placebo + aspirina durante seis meses. La variable primaria de eficacia fue la reduccion de la puntuacion en la mRS. Resultados. Se incluyo a un total de 142 pacientes hipertensos (edad media: 66 años) en el analisis. El policosanol + aspirina disminuyo significativamente la puntuacion de la mRS desde el primer chequeo intermedio. El efecto del tratamiento con policosanol no desaparecio, sino que incluso mejoro despues de seis meses de tratamiento. El numero de pacientes que alcanzaron valores de la mRS <= 1 fue mayor en el grupo de policosanol + aspirina (80,3%) que en el de placebo + aspirina (8,5%). Dos pacientes causaron baja del estudio y cuatro (dos de cada grupo) refirieron efectos adversos leves. Conclusiones. El tratamiento durante seis meses con policosanol + aspirina a pacientes hipertensos que habian sufrido un ictus isquemico no cardioembolico demostro ser mas efectivo que el tratamiento con placebo + aspirina en su recuperacion funcional.
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Álcoois Graxos/uso terapêutico , Inibidores da Agregação Plaquetária/uso terapêutico , Acidente Vascular Cerebral/tratamento farmacológico , Idoso , Aspirina/administração & dosagem , Isquemia Encefálica/complicações , Método Duplo-Cego , Quimioterapia Combinada , Álcoois Graxos/administração & dosagem , Feminino , Humanos , Hipertensão/complicações , Masculino , Inibidores da Agregação Plaquetária/administração & dosagem , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/etiologiaRESUMO
RESUMEN La endometriosis corresponde a la presencia de glándulas endometriales o estroma en sitios distintos a la cavidad uterina. Afecta del 5 al 15% de las mujeres en edad reproductiva y se asocia a importante sintomatología. La teoría de la menstruación retrógrada propuesta por Sampson es la más aceptada para explicar su etiología. Varios estudios han asociado esta enfermedad a un riesgo aumentado de neoplasia, ésta entidad, denominada endometriosis asociada a malignidad, se localiza en sitios extra gonadales en un 20% de los casos, donde la pared abdominal no alcanza más de 30 casos reportados. Si bien no existe un tratamiento estándar, la mayoría de los autores han adaptado el protocolo de tratamiento para el cáncer de ovario asociado a endometriosis.
ABSTRACT Endometriosis corresponds to the presence of endometrial glands or stroma at sites other than the uterine cavity. It affects 5 to 15% of women of reproductive age and is associated with a significant symptomatology. The theory of retrograde menstruation proposed by Sampson is the most accepted to explain its etiology. Several studies have associated this disease with an increase in neoplasia, the entity, called endometriosis associated with malignancy, is located in extra gonadal sites in 20% of cases, where the abdominal wall does not reach more than 30 reported cases. Although there is no standard treatment, most authors have adapted the treatment for ovarian cancer associated with endometriosis.
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Humanos , Gravidez , Pessoa de Meia-Idade , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/patologia , Adenocarcinoma de Células Claras/diagnóstico , Endometriose/diagnóstico , Endometriose/epidemiologia , Cuidados Paliativos , Tumores do Estroma Gonadal e dos Cordões Sexuais/patologia , Diagnóstico Diferencial , Tratamento FarmacológicoRESUMO
Crude glycerol, also known as glycerin, is the main byproduct of the biodiesel industry. It has been estimated that up to 40,000 tons of glycerin will be produced each year by 2020. This study evaluated the value-added use of crude glycerol derived from soybean biodiesel preparation as a carbon source for heterologous protein production using the yeast Pichia pastoris. Eleven glycerin samples were obtained by methanolysis of soybean oil using different acids or bases as catalysts. Cell growth experiments showed that crude glycerol containing either potassium or sodium hydroxide resulted in 1.5-2 times higher final cell densities when compared to glycerol P.A. Finally, crude glycerol containing sodium hydroxide was successfully utilized for constitutive heterologous α-amylase production in P. pastoris. This study demonstrated that crude glycerol without any purification steps may be directly used as carbon source for protein production in P. pastoris.
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Biocombustíveis , Carbono/farmacologia , Glicerol/farmacologia , Pichia/metabolismo , Óleo de Soja/química , alfa-Amilases/biossíntese , Aerobiose/efeitos dos fármacos , Bacillus subtilis/efeitos dos fármacos , Bacillus subtilis/enzimologia , Catálise/efeitos dos fármacos , Cromatografia Líquida de Alta Pressão , Fermentação/efeitos dos fármacos , Metanol/farmacologia , Pichia/efeitos dos fármacos , Pichia/crescimento & desenvolvimentoRESUMO
Dendropsophini is the most species-rich tribe within Hylidae with 234 described species. Although cytogenetic information is sparse, chromosome numbers and morphology have been considered as an important character system for systematic inferences in this group. Using a diversity of standard and molecular techniques, we describe the previously unknown karyotypes of the genera Xenohyla, Scarthyla and Sphaenorhynchus and provide new information on Dendropsophus and Lysapsus. Our results reveal significant karyotype diversity among Dendropsophini, with diploid chromosome numbers ranging from 2n = 22 in S. goinorum, 2n = 24 in Lysapsus, Scinax, Xenohyla, and almost all species of Sphaenorhynchus and Pseudis, 2n = 26 in S. carneus, 2n = 28 in P. cardosoi, to 2n = 30 in all known Dendropsophus species. Although nucleolar organizer regions (NORs) and C-banding patterns show a high degree of variability, NOR positions in 2n = 22, 24 and 28 karyotypes and C-banding patterns in Lysapsus and Pseudis are informative cytological markers. Interstitial telomeric sequences reveal a diploid number reduction from 24 to 22 in Scarthyla by a chromosome fusion event. The diploid number of X. truncata corroborates the character state of 2n = 30 as a synapomorphy of Dendropsophus.
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Anuros/genética , Bandeamento Cromossômico , Cromossomos/genética , Animais , Anuros/classificação , Evolução Biológica , Variação Genética , Cariótipo , Região Organizadora do Nucléolo/genética , Especificidade da EspécieRESUMO
SETTING: The National Tuberculosis Programs of Ghana, Viet Nam and the Dominican Republic. OBJECTIVE: To assess the direct and indirect costs of tuberculosis (TB) diagnosis and treatment for patients and households. DESIGN: Each country translated and adapted a structured questionnaire, the Tool to Estimate Patients' Costs. A random sample of new adult patients treated for at least 1 month was interviewed in all three countries. RESULTS: Across the countries, 27-70% of patients stopped working and experienced reduced income, 5-37% sold property and 17-47% borrowed money due to TB. Hospitalisation costs (US$42-118) and additional food items formed the largest part of direct costs during treatment. Average total patient costs (US$538-1268) were equivalent to approximately 1 year of individual income. CONCLUSION: We observed similar patterns and challenges of TB-related costs for patients across the three countries. We advocate for global, united action for TB patients to be included under social protection schemes and for national TB programmes to improve equitable access to care.
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Antituberculosos/economia , Técnicas Bacteriológicas/economia , Custos de Cuidados de Saúde , Acessibilidade aos Serviços de Saúde/economia , Disparidades em Assistência à Saúde/economia , Aceitação pelo Paciente de Cuidados de Saúde , Tuberculose/economia , Absenteísmo , Adolescente , Adulto , Idoso , Antituberculosos/uso terapêutico , Comorbidade , Efeitos Psicossociais da Doença , Dieta/economia , República Dominicana/epidemiologia , Custos de Medicamentos , Feminino , Financiamento Pessoal , Gana/epidemiologia , Pesquisas sobre Atenção à Saúde , Gastos em Saúde , Custos Hospitalares , Humanos , Renda , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Tuberculose/diagnóstico , Tuberculose/tratamento farmacológico , Tuberculose/epidemiologia , Vietnã/epidemiologia , Adulto JovemRESUMO
INTRODUCCIÓN: El Síndrome Metabólico se define según los criterios de National Cholesterol Education Program y el Adult Treatment Panell III como la presencia simultánea de obesidad abdominal, dislipidemia, hipertensión arterial, hiperglicemia en ayunas e insulinorresistencia, estableciéndose el diagnostico con la presencia de tres o más de estas alteraciones en un mismo individuo. OBJETIVOS: Determinar los factores de riesgo cardiovascular presentes en la población que acude al ambulatorio rural tipo I de Guaica, Venezuela. Determinar la presencia de síndrome metabólico en la población del sector Guaica ubicado en el estado Carabobo de Venezuela. MATERIAL Y MÉTODO: Estudio descriptivo de corte transversal. La población a estudiar está delimitada por 80 pacientes que acuden a consulta integral en el ambulatorio rural tipo I de Guaica. Se procedió a la toma de tensión arterial, medición de la circunferencia abdominal, medición de la glicemia capilar en ayuna y medición del peso. RESULTADOS: El 45 por ciento obtuvo obesidad central, la población total hipertensa se expreso en un 35 por ciento. La hiperglicemia en ayunas estuvo presente en un 32,5 por ciento siendo mayor en el sexo masculino. La presencia del síndrome metabólico fue del 31,25 por ciento, siendo mayor en el sexo femenino. Finalmente, el 82 por ciento de la población presentó por lo menos un criterio para el síndrome metabólico. DISCUSIÓN: La mayoría de la población estudiada presenta al menos un factor de riesgo de padecer Síndrome Metabólico, estando presente en un 31,25 por ciento de la población, lo cual se traduce en la necesidad de implementar medidas de prevención para enfermedad de salud pública.
INTRODUCTION: Metabolic syndrome is defined as the simultaneous presence of abdominal obesity, dyslipidemia, hypertension, fasting hyperglycemia and insulin resistance, establishing the diagnosis with the presence of three or more individual disturbances. OBJECTIVES: To determine cardiovascular risk factors present in the population of Guaica. To determine the presence of metabolic syndrome in the population attending a type-I integral rural clinic of Guaica, Venezuela. MATERIAL AND METHOD: A cross-sectional descriptive study. The study population is formed by 80 patients attending a type-I integral rural clinic in Guaica, we proceeded to the measure of blood pressure, abdominal circumference, of fasting capillary glucose and weight. RESULTS: 45 percent of the studied population had central obesity, hypertension total population was formed by 35 percent. Fasting hyperglycemia was present in 32.5 percent and was more prevalent in men. The presence of metabolic syndrome was 31.25 percent and was more prevalent in women. Finally, 82 percent of the population has at least one criterion for metabolic syndrome. DISCUSSION: The majority of the studied population has at least one risk factor for metabolic syndrome which was present in 31.25 percent of the population of Guaica Venezuela. This results take us to make prevention of this disease of public health.
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Humanos , Masculino , Adulto , Feminino , Pessoa de Meia-Idade , Doenças Cardiovasculares/etiologia , Síndrome Metabólica/complicações , Síndrome Metabólica/epidemiologia , Gordura Abdominal , Índice de Massa Corporal , Estudos Transversais , Hiperglicemia/complicações , Hiperglicemia/epidemiologia , Hipertensão/complicações , Hipertensão/epidemiologia , Fatores de Risco , Saúde da População Rural , VenezuelaRESUMO
The snake genus Lachesis provokes 2 to 3% of snakebites in Colombia every year. Two Lachesis species, L. acrochorda and L. muta, share habitats with snakes from another genus, namely Bothrops asper and B. atrox. Lachesis venom causes systemic and local effects such as swelling, hemorrhaging, myonecrosis, hemostatic disorders and nephrotoxic symptoms similar to those induced by Bothrops, Portidium and Bothriechis bites. Bothrops antivenoms neutralize a variety of Lachesis venom toxins. However, these products are unable to avoid coagulation problems provoked by Lachesis snakebites. Thus, it is important to ascertain whether the envenomation was caused by a Bothrops or Lachesis snake. The present study found enzyme linked immunosorbent assay (ELISA) efficient for detecting Lachesis acrochorda venom in a concentration range of 3.9 to 1000 ng/mL, which did not show a cross-reaction with Bothrops, Portidium, Botriechis and Crotalus venoms. Furthermore, one fraction of L. acrochorda venom that did not show crossreactivity with B. asper venom was isolated using the same ELISA antibodies; some of its proteins were identified including one Gal-specific lectin and one metalloproteinase. This test may be useful to physicians, since it could be applicable for tracking the kinetic distribution of antigens in patients or experimentally envenomed animals.(AU)
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Animais , Venenos de Víboras/enzimologia , /métodos , Ensaio de Imunoadsorção Enzimática/veterinária , Reações CruzadasRESUMO
The snake genus Lachesis provokes 2 to 3% of snakebites in Colombia every year. Two Lachesis species, L. acrochorda and L. muta, share habitats with snakes from another genus, namely Bothrops asper and B. atrox. Lachesis venom causes systemic and local effects such as swelling, hemorrhaging, myonecrosis, hemostatic disorders and nephrotoxic symptoms similar to those induced by Bothrops, Portidium and Bothriechis bites. Bothrops antivenoms neutralize a variety of Lachesis venom toxins. However, these products are unable to avoid coagulation problems provoked by Lachesis snakebites. Thus, it is important to ascertain whether the envenomation was caused by a Bothrops or Lachesis snake. The present study found enzyme linked immunosorbent assay (ELISA) efficient for detecting Lachesis acrochorda venom in a concentration range of 3.9 to 1000 ng/mL, which did not show a cross-reaction with Bothrops, Portidium, Botriechis and Crotalus venoms. Furthermore, one fraction of L. acrochorda venom that did not show crossreactivity with B. asper venom was isolated using the same ELISA antibodies; some of its proteins were identified including one Gal-specific lectin and one metalloproteinase. This test may be useful to physicians, since it could be applicable for tracking the kinetic distribution of antigens in patients or experimentally envenomed animals.(AU)
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Venenos de Serpentes/toxicidade , Ensaio de Imunoadsorção Enzimática/métodos , Técnicas Imunoenzimáticas/métodos , ViperidaeRESUMO
The relationship between human papillomavirus (HPV) and uterine cervical cancer (UCC) is widely known and accepted. Aim: To determine the frequency of genotypes of HPV in cervical preneoplastic lesions in a high risk area of UCC. Material and Methods: Using a combination of PCR and Reverse Line Blot technique, 235 formalin fixed paraffin embedded samples, with diagnosis of low-grade squamous intraepithelial lesion (LSIL) or high-grade squamous intraepithelial lesion (HSIL) were genotyped. Results: HPV was detected in 61.2 percent of LSIL and 78.1 percent of HSIL. The main genotypes found were HPV 16, 18, 31, 45, 56 y 58. HPV 16 was the most common in both LSIL (18.1 percent) and HSIL (36.9 percent). HPV 16 or 18 were present in 25.1 percent and 47.1 percent of the LSIL and HSIL respectively. In both LSIL and HSIL, the predominant viral genotypes were those types classified as with a high oncogenic risk. Conclusions: HPV genotypes 16, 18, 31, 45, 56 y 58 were the most common in our series. HPV 16 and 18, viral types with high oncogenic risk and included in commercial vaccines, were found in 25.1 percent and 47.1 percent of LSIL and HSIL, respectively.
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Adolescente , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Adulto Jovem , Displasia do Colo do Útero/virologia , Neoplasias de Células Escamosas/virologia , Papillomaviridae/genética , Infecções por Papillomavirus/diagnóstico , Lesões Pré-Cancerosas/virologia , Neoplasias do Colo do Útero/virologia , Chile/epidemiologia , Papillomaviridae/classificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Lesões Pré-Cancerosas/genética , Lesões Pré-Cancerosas/patologia , Índice de Gravidade de DoençaRESUMO
The Beck Depression Inventory-I (BDI-I) is a self-report measure of depressive symptomatology that is widely used in both research and clinical settings. While the Spanish language version of the BDI-I is frequently used in the USA, there are currently no available guidelines to determine depressive symptomatology base rates in Spanish speaking populations using this instrument. In the present study, base rates of depressive symptoms and demographic influences on the BDI-I were measured in a non-clinical Spanish speaking population from the US-Mexico border region. A sample of 198 neurologically normal Spanish speaking individuals, mostly of Mexican decent, completed the BDI-I as part of a larger neuropsychological norming study. The results indicated that while there were no effects of age or education on overall BDI-I scores, those with lower education tended to report higher severity of individual symptoms. Consistent with findings in other populations, women endorsed a greater number of depressive symptoms. Therefore separate cut-scores were derived for men and women to represent these differences. Future research should assess the impact of acculturation and socioeconomic stressors on the BDI scores in this mostly immigrant population.
RESUMO
BACKGROUND: The relationship between human papillomavirus (HPV) and uterine cervical cancer (UCC) is widely known and accepted. AIM: To determine the frequency of genotypes of HPV in cervical preneoplastic lesions in a high risk area of UCC. MATERIAL AND METHODS: Using a combination of PCR and Reverse Line Blot technique, 235 formalin fixed paraffin embedded samples, with diagnosis of low-grade squamous intraepithelial lesion (LSIL) or high-grade squamous intraepithelial lesion (HSIL) were genotyped. RESULTS: HPV was detected in 61.2% of LSIL and 78.1% of HSIL. The main genotypes found were HPV 16, 18, 31, 45, 56 y 58. HPV 16 was the most common in both LSIL (18.1%) and HSIL (36.9%). HPV 16 or 18 were present in 25.1% and 47.1% of the LSIL and HSIL respectively. In both LSIL and HSIL, the predominant viral genotypes were those types classified as with a high oncogenic risk. CONCLUSIONS: HPV genotypes 16, 18, 31, 45, 56 y 58 were the most common in our series. HPV 16 and 18, viral types with high oncogenic risk and included in commercial vaccines, were found in 25.1% and 47.1% of LSIL and HSIL, respectively.
Assuntos
Neoplasias de Células Escamosas/virologia , Papillomaviridae/genética , Infecções por Papillomavirus/diagnóstico , Lesões Pré-Cancerosas/virologia , Displasia do Colo do Útero/virologia , Neoplasias do Colo do Útero/virologia , Adolescente , Adulto , Idoso , Chile/epidemiologia , Feminino , Humanos , Pessoa de Meia-Idade , Papillomaviridae/classificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Lesões Pré-Cancerosas/genética , Lesões Pré-Cancerosas/patologia , Índice de Gravidade de Doença , Adulto JovemRESUMO
La infección por Citomegalovirus (CMV) es considerada un problema de salud en mujeres fértiles cuando la infección es adquirida durante el embarazo. Con el fin de conocer la prevalencia de CMV en mujeres fértiles de algunas comunidades Yukpa, durante el año 2007 se seleccionaron 112 mujeres de un total de 151, procedentes de las comunidades del Tokuko (n=41), Kasmera (n=35), Yasa (n=20) y Neremú (n=16), en edades entre 16 - 45 años. La determinación de anticuerpos de tipo IgG e IgM anti-CMV se realizó por la técnica de inmunoensayo enzimático (ELISA). La presencia de anticuerpos IgG-anti-CMV fue detectada en el 72,3 por ciento (81/112) de la población estudiada. El 8,6 por ciento (7/81) de las muestras reactivas para IgG fueron positivas para IgM anti-CMV. El análisis por comunidad indica una diferencia significativa (p<0,001) en la prevalencia de CMV en la comunidad del Tokuko con respecto a la comunidad de Yasa. Factores como edad, hacinamiento, número de pareja, número de hijos y abortos, no presentaron asociación con la presencia de anticuerpos para CMV. La prevalencia encontrada en esta población está por debajo a la indicada en mujeres fértiles en otros países y homogéneamente distribuida en las comunidades evaluadas. El porcentaje de mujeres susceptibles debe ser considerado a través de controles pre y durante el embarazo
Infection by Cytomegalovirus (CMV) is considered a health problem in fertile women when the infection is acquired during pregnancy. In order to find the prevalence of CMV among fertile women in Yukpa communities,112 women out of 151, ages 16 - 45, were selected during 2007, coming from Tokuko (n=41), Kasmera (n=35), Yasa (n=20) and Neremu (n=16). IgG and IgM antibodies for CMV were determined by enzymatic immunoassay technique (EIA). The presence of CMV antibodies was detected in 72, 3 percent (81/112) of the population studied. The 8, 6 percent (7/81) of those reactive for IgG were positive for anti-CMV IgM. A significant difference (p<0,001) in CMV prevalence was detected in the Tokuko community compared to the Yasa community. Factors such as age, overcrowding, number of partner, number of children and abortions, were not association with the presence of CMV antibodies. CMV prevalence in this population is below that indicated for fertile women in other countries and is distributed homogeneously among the communities studied. The percentage of susceptible women must be taken into account through controls before and during pregnancy