Programa de Pós-Graduação em Doenças Tropicais - PPGDT/NMT

URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/3558

O Programa de Pós-Graduação em Doenças Tropicais (PPGDT) integra o Núcleo de Medicina Tropical (NMT) da Universidade Federal do Pará (UFPA), realizando atividades de ensino, pesquisa e extensão e atuando na formação de docentes-pesquisadores para o estudo e o ensino das doenças tropicais e das patologias regionais no estado do Pará e na Amazônia.

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Acidentes ofídicos ocorridos no município de Santarém (PA) no período de 2000-2009
(Universidade Federal do Pará, 2012) SINIMBÚ, Valter Pinheiro; SOUZA, Givago da Silva; http://lattes.cnpq.br/5705421011644718
It surveyed the epidemiological profile of snakebites and risk factors associated with its incidence among residents of the municipality of Santarém (PA) and occurred in the decade of 2000-2009. Approaches the study with a descriptive-analytical methodology, observational and retrospective, with the use of a properly coded database, provided by the National Notifiable Diseases (SINAN) of the Ministry of Health. During the period, there were 2283 cases, accounting an annual incidence ranging between 70 to 105 cases / 100,000 population with a fatality rate of 0.66%. The accidents predominated in rural people (87%) in the months of Amazon rainy (January to June) in male patients (79%) aged 20-29 years. Almost all cases were treated at the emergency room of the county (88%) located in the urban area. Most patients (56%) came to the Health Unit 6 hours after the accident due to difficulties in access by geographic factors and river transport. Were classified as mild in severity (38%), moderate (55%) and severe (6%). Due to the frequency of species of snakes in the region, Bothrops accounted for the majority with 70.9%, followed by laquéticos accidents (11.3%) and more frequent in Amazonian forests, the crotalic (2.1%) and rare Micrurus (0.2%) and 15.3% in the species was not identified. In 91% of these patients the serum therapy was instituted. Unable to determine the occupancy of these patients, nor their level of education due to lack of completion of the case report forms. The lower limbs were the regions mostly affected (82%), which draws attention to the adoption of simple but effective preventive measures. Because of the high incidence of cases (the largest in Brazil), difficulties in patient access to prompt and effective care (increasing the morbidity and mortality), and little importance given by health professionals with regard to whether the information necessary for a better assessment and protection of the residents of this region, concludes that these accidents, although endemic in much of the world, particularly the tropics, remains, according to WHO definition, a problem neglected (by patients, professionals and society). There is need for more research, more ads and more awareness.
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Adenopatia cervical tuberculosa em crianças: aspectos epidemiológicos, clínicos e laboratoriais
(Universidade Federal do Pará, 1998-03-22) FIGUEIREDO, Erika Maria Riebisch de; AYRES, Manuel; http://lattes.cnpq.br/1649810738276000
Tuberculosis remains a serious public health problem, and in Brazil, the principal agent for this disease is the Mycobacterium tuberculosis. In infancy, among extrapulmonary forms, one of the most frequent and less studied is that involves the superficial lymph nodes. In order to determine the incidence and to know the epidemiologic, clinical and laboratory features of lymph nodes tuberculosis, between January, 1995 to December, 1996, in the attendance outpatient unit of Hospital Ofir Loiola, it was enrolled 73 children from both sexes, aged 0 to 14 years, with enlargement of the cervical lymph nodes. The samplewas divided in 2 groups: in the first group, it was located 61 patients with adenopathy from etiologies other than tuberculosis, while 12 patients with cervical tuberculosis adenopathy took part in the second group. In this study, concerning tuberculosis adenopathy, for one hundred thousand in habitants,in the metropolitan area of Belem, it was observed an year rate incidence of 1.03 . Regarding adenopathy from other etiologies, the incidence was 4.27 and 6.15, in 1995 and 1996, respectively. The great majority of childhood adenopathy (64.4%) was nonspecific, although, when it was considered just those of known etiology, the relative risk of being tuberculosis was1.17. In both groups, the greatest incidence of cervical adenopathy was observed among preschool male children. However, when it was made a comparative analysis between the groups, there were no statistic significative differences toward age, sex, nutritional status, clinical symptom onset, type and characteristics of the affected lymph nodes. Disturbance in the nutritional status may have played a role to enhance the morbidity in 41.7% of the tuberculosis cases. The evidence of a cervical mass was the main symptom in the 2 studied groups, though, 75.1% of children with lymph node tuberculosis also had a general involvement of other lymph nodes chains. All children with cervical lymph node enlargement, which proved later to be of tuberculosis etiology had at least one month of illness course, and in such circumstances, a cold abscess represented the main symptom in 25% of them. It was possible to identify the sourceof infection in 1/3 of patients. Among children with tuberculosis, 63.6% had a positive tuberculin skin test, with a reaction 210 mm. Considering all bacteriologic procedures performed, culture turned to be the main element to tuberculosis diagnosis, with 100% positive results; while baciloscopy had little importance. Histopatologic exams showed granulomatosis lesions suggesting tuberculosis, in 88.9% of the sample. Concomitant pulmonary involvement was observed in 27.3% of children with lymph node tuberculosis. A good therapeutic response was seen using the pattern scheme adopted by Health Ministery, with out adverse reactions.
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Alterações clínicas e metabólicas em portadores de hanseníase multibacilares
(Universidade Federal do Pará, 2009-12-30) CALIXTO, Sheyla Cristina de Souza; XAVIER, Marília Brasil; http://lattes.cnpq.br/0548879430701901
Leprosy is an infectious disease caused by Mycobacterium leprae. It is characterized by dermato-neurological damage, ranging in spectrum between two stable poles (tuberculoid and lepromatous), with unstable intermediate forms. An operational classification with treatment purposes, join patients in two groups: the paucibacillary (PB), which represents clinical forms that have 1-5 injuries and smear-negative; the multibacillary (MB) corresponding to clinical forms of 5 or more lesions and with or without positive smear. Although to be treatable, leprosy still represents an important public health problem. Its major morbidity is associated with the reaction state and neural damage that can cause physical disabilities and permanent deformity, compromising significantly the patients quality of life. Clinical consequences with regard to ophthalmology, endocrine and cardiovascular diseases may come from the pathogenesis of both infection and immunopathological process, as by the adverse drug reactions, so such events must to be clarified in order that the health planning can minimize such injuries. An early diagnosis enables an early and effective treatment intending to avoid important clinical changes and sequelae. It was conducted a descriptive study of the kind of serial cases of 68 patients with high treatment of leprosy longer than or equal to 2 years and treatment of reactional states, aiming to describe the clinical, epidemiological and laboratory aspects in multibacillary patients after discharge with a focus on hypertension, diabetes, osteoporosis diagnosis and discuss about the possible relationships with the treatment of reactional leprosy episodes. We observed that most patients were male, aged over 45, comes from Belém, low education and low family income, the prevalent type of leprosy was the virchowian, the reverse reaction was the most prevalent state reaction , corticosteroids have been the most used drug for treatment in reactional states, patients who did not use corticosteroids had a greater percentage of normal densitometry, the co-morbidities: diabetes, hypertension and osteoporosis were more frequent in patients who used corticosteroids and age over 45 years . The level 2 was the most prevalent degree of disability.
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Alterações endócrinas e metabólicas em pacientes HIV positivos com lipodistrofia
(Universidade Federal do Pará, 2007-11-30) YAMANO, Ernesto Yoshihiro Seki; LIBONATI, Rosana Maria Feio; http://lattes.cnpq.br/3818175484709618
Lipodystrophy is one of the complications of highly active antiretroviral therapies (HAART). This study evaluates the metabolic and endocrine changing in patients with lipodystrophy. Forty patients were evaluated and classified as lipoatrophy, lipohypertrophy and mixed syndrome. We analyzed insulin resistance for HOMA-IR (Homeostasis Model Assesment Insulin Resistance), fasten glucose and OGTT, urea, creatinine, TSH, Free T4, cortisol, DHEA, ratio cortisol/DHEA, prolactin, testosterone (in male), FSH, LH and estradiol (in female), total cholesterol, LDL-c, HDL-c, uric acid. Anthropometrics measures (Weight, height, body mass index, waist, hip and skin folds thickness), ultrasonographic exams for evaluate hepatic steatosis and measure of bone density. The isolated lipohipertrophy occurred only in female (p<0,05). The mean of age was similar in the groups, without changing in the distribution by age group. Dyslipidemia occurred in all groups after HAART (lipodystrophy mixed, 100%, lipohypertrophy, 80% and lipoatrophy, 70%). Antropometric data showed waist increased in the female with lipohypertrophy (98+ 13,4) and decreased in female with lipoatrophy (76,8 + 6,1). Patients with lipoatrophy have been eutrophic (82,4%) and patients with lipohypertrophy have overweight or obesity (60%). Male was associated with osteoporosis (p < 0,05). We found elevated prevalence of the dyslipidemia (85%) and metabolic syndrome (37,5%) in all groups. The metabolic syndrome was associated with lipohypertrophy. No significant changes were found in the thyroid, cortisol, cortisol/DHEA ratio, testosterone, FSH, LH and prolactina. Conclusions: Female is associated with isolated lipohypertrophy, metabolic syndrome and insulin resistance. Male is related with Osteopenia and osteoporosis. Hepatic steatosis were common, but is not influenced for a type of lipodystrophy. Hormonal changing were unusual events in lipodystrophy.
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Análise conformacional da enzima protease do HIV-1 relacionada à resistência ao inibidor Nelfinavir
(Universidade Federal do Pará, 2017) HOLANDA, Luiz Henrique Campos; SILVA, Jerônimo Lameira; http://lattes.cnpq.br/7711489635465954; SOUSA, Maisa Silva de; http://lattes.cnpq.br/1775363180781218
The Human Immunodeficiency Virus (HIV), which causes acquired immunodeficiency syndrome (AIDS), is a retrovirus that has highly virulent glycoproteins that invade the CD4 + T lymphocyte through its CCR4 and CXCR5 receptors. The biological cycle of HIV is mediated by the protease, transcriptase and integrase enzymes. HIV-1 protease is an enzyme that is present in the final phase of the biological cycle, where virus maturation occurs, and is an important pharmacological target. The main objective of this project is to verify the effects of the D30N, I84A and M46I mutations on the HIV-1 protease enzyme and the complex formation with the nelfinavir inhibitor through molecular dynamics and bioinformatics techniques. The results based on the structural analyzes showed structural differences between the studied systems. The 1OHR system presented a closed conformation, the systems D30N and D30N_I84A_M46I presented semi-open conformation and the D30N_I84A system presented open conformation, in which the latter presented lower free energy value and greater instability in the RMSD analyzes, however the greater flotation of residues Of amino acids. The theoretical analyzes showed the importance in the resistance of the double mutation D30N_I84A and the conformational restructuring capacity of the M46I mutation and catalytic capacity.
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Análise da ação do tratamento de mobilização neural em pacientes com neuropatia hansênica
(Universidade Federal do Pará, 2014) CABRAL, André dos Santos; QUARESMA, Juarez Antônio Simões; http://lattes.cnpq.br/3350166863853054
Historically Leprosy is one of the most disabling diseases in the world. The symptoms of the disease shows a resultant infectious mixed peripheral neuropathy of an insidious inflammatory process involving an ecological relationship between Mycobacterium leprae and man. Clinical disease turns around, both positive signs such as pain, paresthesia and dysesthesia; as negative signals such as sensorimotor loss and autonomic disturbances. Clinic is similarly developed in patients affected by peripheral compressive neurological syndromes. The neural mobilization has proven an effective manual therapeutic resource in controlling the symptoms of these compression syndromes. The inflammatory nature of leprosy neuropathy perform a compressive action and limiting of the mobility of peripheral nerve, impacting negatively with part of the pathology of the disease. This work aimed to investigate the neural mobilization technique is able to improve the symptoms of leprosy neuropathy. Therefore developed a clinical study, longitudinal, non-randomized, self-control, with an experimental analysis of quantitative character, consisting of four different moments, evaluation, experimental intervention period and revaluation 1 and 2. Were examined 12 upper limbs of six patients with high poliquimioterapêutico scheme for multibacillary for clinical form Borderline, who had neurological neurological impairment and remaining neural symptoms. A total of 23 nerve trunks still were symptomatic during the evaluation, taking an average of 3.8 ± 1.8 per patient nerve trunks. Most incidents symptoms to palpation assessment were paresthesia (20) and pain (09). The average intensity of neuropathic pain of each MS was 6.33±3.24. It still has measured grip strength and the sensitivity of the palm side for comparison after the intervention. After 12 sessions of neural mobilization upper limbs there was a slight improvement of sensitivity and grip strength but it was not significant. At the end of the experimental treatment, the number of symptomatic nerve trunks of upper limb decreased significantly. It was also observed analgesia of all upper limbs treated, with maintenance of this benefit after a post-expiration month of the intervention period. With these results we can conclude that the treatment of neural mobilization proved to be effective in controlling leprosy neuropathic pain.
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Análise da variabilidade da frequência cardíaca em pacientes hansenianos: análise linear, simbólica e de complexidade
(Universidade Federal do Pará, 2014) SANTOS, Marcio Clementino de Souza; SOUZA, Givago da Silva; http://lattes.cnpq.br/5705421011644718
Objective: the purpose of this study was to evaluate the heart rate variability (HRV) in patients with multibacillary leprosy clinic history, from dynamic linear and nonlinear analysis. Materials and methods: this is an experimental not randomized, quantitative study with 42 volunteers of both genres, divided into 2 groups of 21. The first group (LG), with 21 leprosy patients, aged 39.14 ±10.58 years, and the second group (CG), with 21 healthy subjects aged 36.24 ± 12.64 years. HR capture was performed by a heart monitor Polar RS800 CX, for a period of 15 min in the supine and 15 min in a sitting position. Analysis of HRV was performed by frequency domain from high frequency spectral indices (HFun), low frequency (LFun) in standard units and reason BF/AF. The nonlinear analysis of HRV was calculated by symbolic analysis (0V indexes%, 1V%, wholesale% and 2ULV%) shannon entropy (SE) and normalized complexity index (NCI). Results: In the spectral analysis of HRV LG presented higher values (p<0.05) of LFun and smaller values (p<0.05) of HFun compared to CG, on bench press position. Both groups showed higher values (p<0.05) of HFun and smaller values (p<0.05) of LFun in supine position in relation to a sitting position. There was no change of reason LF/HF in the comparison between groups and between positions evaluated. Symbolic analysis LG presented higher values (p<0.05) of 0V index% and smaller values (p<0.05) of the 2LV% and 2ULV% index in relation to the CG, in both positions evaluated. The index 1V% was higher (p<0.05) in the LG in relation to the CG just comparing to a sitting position. The CG presented minors values (p<0.05) of 0V index% and higher values (p<0.05) 2ULV% index supine position in relation to a sitting position. The LG presented higher values (p<0.05) 2ULV% index supine position in relation to a sitting position. On the complexity analysis LG presented minors values (p<0.05) of SE and ICN with respect to CG, on bench press position. There were no differences between the groups in SE and NCI analyzed in a sitting position. The CG presented higher values (p<0.05) of ES and ICN on bench press position in relation to a sitting position. Conclusion: The LG present greater sympathetic modulation and less vagal modulation in relation to the CG, indicating less HRV and cardiac modulation with low complexity. In response to postural change, both groups showed increased vagal modulation on position supine, evidencing greater HRV in this condition. Analysis of HRV by linear and non-linear dynamics proved to be a sensitive method and promising for investigation of autonomic dysfunction in patients with multibacillary leprosy.
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Análise das manifestações emocionais e motoras de ribeirinhos expostos ao mercúrio na Amazônia
(Universidade Federal do Pará, 2016-02-19) COSTA JUNIOR, José Maria Farah; SOUZA, Givago da Silva; http://lattes.cnpq.br/5705421011644718; PINHEIRO, Maria da Conceição Nascimento; http://lattes.cnpq.br/6353829454533268
Introduction: The investigation of impacts clinico-neurological associated with exposure to mercury levels in exposed populations are necessary in the Amazon. Objective: To analyze the emotional and motor manifestations of riparian exposed by diet in the municipalities of Itaituba/PA and Acara/PA. Method: Hair samples were collected for the determination of total Hg, obtaining of demographic data and emotional symptomatology (depression, anxiety and insomnia) and motors (paresthesia, muscle weakness, imbalance when walking, tremor, pain in the limbs and dysarthria). Results: There was a prevalence of females in both municipalities, as well as a higher frequency of women of reproductive age. The median concentration of total mercury (HgT) in Itaituba was significantly higher (p <0.0001) than in Acará. The emotional manifestations were identified in 26 (26,5%) participants from Itaituba and in 24 (52,2%) in Acará. With regard to the specific motor complaints in Itaituba occurred in 63 (64,3%) volunteers, with pain in the limbs (36,7%), paresthesia (32,6%) and muscle weakness (27,5%) the most frequently mentioned. In Acara, 33 (71,7%) participants had motor manifestations with the highest number of complaining of paresthesia (54,3%), pain in the limbs (52,2%) and tremor (34,8%). The average concentrations of HgT those with emotional manifestations, with motor manifestations and emotional and motor manifestations were above the considered tolerable (6μg/g) by the World Health Organization in Itaituba Conclusion: The results revealed the influence of the exposure levels about the emotional and motor manifestations. The monitoring with the application of qualitative and/or quantitative conventional specific tests are needed to better support and control cases, as well as the investigation of other clinical signs.
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Análise de polimorfismo na região promotora do gene da Interleucina 18 (-137 G/C e -607 C/A) em pacientes portadores do vírus da hepatite C de Belém, Pará
(Universidade Federal do Pará, 2012-03-23) SANTOS, Kemper Nunes dos; MARTINS, Luisa Caricio; http://lattes.cnpq.br/1799493244439769
Since its discovery in 1989, the hepatitis C virus (HCV) has been recognized as a major cause of chronic liver disease worldwide. Considered a public health problem worldwide involving between 170 to 350 million people infected. Host genetic factors have been implicated in the persistence of HCV infection. Studies suggest that two single nucleotide polymorphisms at position -607 C/A (rs1946518) and -137 G/C (rs187238) in the region of the gene IL-18 and have been found associated with the transcriptional promoter activity of IL -18, and potentially of IFN-γ, being associated with delayed viral clearance and persistence of the disease. We conducted a cross-sectional analytical study of the city of Belém-PA in 152 blood samples from patients infected with HCV and 188 uninfected controls. The samples were subjected to RT-PCR (Reverse Transcriptase - PCR) for detection of viral RNA and, subsequently, the PCR-RFLP (Restriction Fragment Length Polymorphism) to evaluate the polymorphism in the promoter region of IL-18 gene at positions -137 G/C and -607 C/A. The results showed no significant difference for IL-18 polymorphisms between patients and control group. But showed a significant difference for homozygous genotypes G/G (39.1%) at position -137 (OR = 3.00, CI [95%] = 1.24 – 7.22, p = 0.02), and A/A (21.7 %), position -607 (OR = 3.62, CI [95%] = 1.25 – 10.45, p = 0.03) among women than men (22.6% and 7.6%). The results showed evidence that among women, the presence of the polymorphism homozygous A/A (-607) acts as a protective factor against HCV infection, genotype as the A/A (-607) have been linked in some studies with liver disease and mild viral clearance.
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Análise de série temporal da hanseníase no estado do Pará
(Universidade Federal do Pará, 2016) PINHEIRO, Helder Henrique Costa; ARAÚJO, Marizeli Viana de Aragão; http://lattes.cnpq.br/7849256617873180; QUARESMA, Juarez Antônio Simões; http://lattes.cnpq.br/3350166863853054
Objective: Analysing a time series of new cases detected of Leprosy in the State of Pará, checking epidemiological trends according to the observated variables of the disease. Methods: Ecological observational design of detection historical series of Leprosy cases with use of secondary data from the National Notifiable Diseases System. The detection rates and the general variables in studies and estimated the trends of the time series were calculated. The State of Pará data were compared to the States of Mato Grosso State and Rio Grande do Sul. Results: The detection rate in Pará in 2014 was 4,84 per 10.000 inhabitants, with 32.177 cases detected in the period 2008-2014, estimating a trend annual growth rate of -12.71%. The proportion of children under 15 years of age was 10.4%, the largest in Brazil. Higher frequency of MB cases (65,2%) and Borderline clinical form (45,2%) was deteceted. Conclusion: The detection of new cases of leprosy is mainly in adult men, poorly educated and living in urban areas. The downward trend in case detection of the disease is different from stationary trend in the State of Mato Grosso. However, the trend of leprosy cases in children and adolescents in the State of Pará is stationary.
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Análise do dano neural em pacientes hansenianos e na coinfecção HIV/ Hanseníase através de duas coortes clínicas
(Universidade Federal do Pará, 2013) BATISTA, Keila de Nazaré Madureira; XAVIER, Marília Brasil; http://lattes.cnpq.br/0548879430701901
In Brazil where leprosy is endemic and where HIV infection continues to expand and internalizing, if expected to find an increased prevalence of individuals living with both leprosy and HIV / AIDS, but there are few reports on the neurological damage that can cause overlapping. The aim of this study was to investigate nerve damage in leprosy leprosy patients coinfected with human immunodeficiency virus, compared with leprosy coinfected not at the beginning of treatment and at discharge, through two clinical cohorts. The sample consisted of 99 patients of whom 46 had coinfection MH / HIV and only 53 leprosy, these patients were seen at the outpatient clinic of the Center for Tropical Medicine and evaluated by the Simplified Technique. As a result there was a predominance of males, aged between 15 and 45 and the origin of the Metropolitan Region of Belém In group coinfection MH / HIV were prevalent in these paucibacillary patients and the presence of neuritis , abnormal sensitivity , motor abnormalities, presence of disability and neural damage was higher in this group than in the MH. In group predominated MH multibacillary patients and the presence of these neuritis, abnormal sensitivity, motor abnormalities, presence of disability and nerve damage was higher in this group than in coinfected MH / HIV. Monitoring of patients coinfected MH / HIV there was a small reduction in the presence of failure and nerve damage while in the MH group monitoring the presence of disability remained increased and nerve damage. In the Kaplan-Meier survival analysis was found that in patients MH was maintaining the chance of the patient remains without nerve damage, while in the coinfected patients group, was observed a reduction in the chance of the patient to keep without nerve damage the end of treatment. Thus it is concluded that the neural damage behaves differently in the two groups manner, predominantly in the paucibacillary group coinfected patients coinfected and not in multibacillary patients, but with the same gravity, which is troubling since diagnosing this damage at the beginning of the appearance of leprosy is still a problem for public health.
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Análise epidemiológica e caracterização parcial do gene F dos Metapneumovirus Humano detectados a partir de casos de infecção respiratória aguda na Região Norte do Brasil
(Universidade Federal do Pará, 2012-10-30) FERREIRA, Luís Edilson de Azevedo; MELLO, Wyller Alencar de; http://lattes.cnpq.br/1784167608719139; SOUSA, Rita Catarina Medeiros; http://lattes.cnpq.br/3560941703812539
Diseases of the respiratory tract are the main complaints in health care services, and acute respiratory infections (ARI) the most common manifestations, especially in children under five years of age. In developing countries the ARI are a serious public health problem. Throughout the world is estimated to occur in approximately 2 million deaths each year by ARI. Among the causative agents of ARI, we highlight the human metapneumovirus (HMPV), especially by causing severe illness in children under 5 years. Aiming to generate data on the molecular epidemiology of this virus, we analyzed samples taken from patients with ARI in the period January 2009 to December 2011 arising from the Northern Region (Pará, Amazonas, Acre, Amapá and Roraima). It was used the technique of real time PCR (qRT-PCR) to detect the virus by the N gene and RT-PCR for the gene encoding the F protein, which was then partially sequenced. Within the study period, were tested in 2966 samples, 129 of which were positive for HMPV. The age group of 0-4 years was the one that focused more cases (n = 84, 65.89%) across the North. The identification of viruses was found to co-circulation of subgroups A2 and B2 during the three years of the study. Subgroups A1 and B1 not circulated in the region during the study period. This study represents the first report of data on molecular epidemiology of Human Metapneumovirus in northern Brazil.
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Análise espacial das condições ecoepidemiológicas para estabelecimento da Esquistossomose mansonica em duas áreas do Distrito de Mosqueiro, Belém-PA
(Universidade Federal do Pará, 2012) PEREIRA, Alba Lúcia Ribeiro Raithy; GONÇALVES, Nelson Veiga; http://lattes.cnpq.br/8811269146444725; BICHARA, Cléa Nazaré Carneiro; http://lattes.cnpq.br/2161704040280760
The dynamics process of Mansonic Schitomiasis endemization is multifactorial, which sometimes retards it’s installation process, but also difficult the control of epidemiological surveillance. The Geo-technologies have brought contributions to the public health, creating thematic maps that make easier understand of dynamic population at space used, and their interrelationship with the water resources and with the sickness process. The proposal of this work was to identify through spatial analysis the eco-epidemiological factors related with the Mansonic Schitosomiasis endemization. It was achieved a descriptive study in two coverage areas from Family Health Strategy, Carananduba and Furo das Marinhas, In Mosqueiro District, Belém-PA, between 2010 and 2012, using geoprocessing Techniques like: Remote Sensing and Geographic Information Systems (GIS), through the tools: ERDAS 8.3.1 and ENVI 4.5, for classification of these satellites images, with the variables: Soil, vegetation cover and hydrography; The Global Positioning System (GPS) for georreferencing at study area and capturing collecting points of breeding sites; and ARCGIS 9.3.1 for manipulation and teatring of the Geographic Data Banks and Kernel estimation for identification of risk zones about high resolution satellite images and cartographic bases. Were analyzed, also, environmental and ecological data through geoprocessing techniques. The geo-technologic tools producing thematic maps of Family Health Strategic abrangency, the work routes, environmental classification, and the localization of breeding sites that generating seven agglomerated Kernel points that identified the risk zones of transmission aggravating in 3 boroughs of Carananduba Zone. This zone has been presenting antrophic characteristics due disordered human occupation and hydro siltation collections. The Furo das Marinhas area still keeps native forest and great quantity of hydro collections yet and not being found Biomphilaria. In both studied areas the structure of sanitation is insufficient, and isn’t still there focus active of transmission from Mansonic Schitosomiasis. However, could be a great vulnerability in a short time to happen this incidence at Caranaduba area. So, the geo-technologies applied have enabling a geographic information system that made feasible the diagnostic of risk on the process of Mansonic Schitosomiasis Endemization in more than one location in Para.
Acesso aberto (Open Access)
Análise filogenética de genes de provável origem não humana de rotavírus do grupo A em espécimes fecais de crianças com gastrenterite aguda provenientes de Belém, Brasil
(Universidade Federal do Pará, 2012) MAESTRI, Régis Piloni; MASCARENHAS, Joana D'Arc Pereira; http://lattes.cnpq.br/5156164089432435
Rotaviruses (RVs) are the main cause of acute viral gastroenteritis in both humans and young animals of species such as calves, horses, pigs, dogs, cats, and birds. The genetic diversity of RVs is related to a variety of evolutionary mechanisms, including point mutation, genome reassortment, and reassortment. The objective of this study was realized the molecular charaxterization of the genes that encode structural and nonstructural proteins in unusual RV strains. The clinical specimens selected for this study were obtained from children and newborns with RV gastroenteritis, who participated in research projects on viral gastroenteritis conducted at the Evandro Chagas Institute. Structural (VP1-VP4, VP6, and VP7) and nonstructural (NSP1-NSP6) genes were amplified from stool samples by the polymerase chain reaction and subsequently sequenced. Eight unusual RV strains isolated from children and newborns with gastroenteritis were studied. Reassortments between genes of animal origin were observed in 5/8 (62.5%) strains analyzed. These results demonstrate that, although rare, interspecies (animal-human) transmission of RVs occurs in nature, as observed in the present study in strains NB150, HSP034, HSP180, HST327, and RV10109. This study is the first of its kind conducted in the Amazon region and supports previous data showing a close relationship between genes of human and animal origin, representing a challenge to the large-scale introduction of RV vaccines in national immunization programs.
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Análise higiênico-sanitária da carne do caranguejo-uçá (Ucides cordatus) beneficiada em dois municípios litorâneos do Estado do Pará
(Universidade Federal do Pará, 2002) CÉSAR, Kátia Lamarão Vieira; REZENDE, Manoel Barbosa de
Among the products of animal origin, the crab is held as one of the victuals more susceptible to the deterioration process due to is specific chemical composition, activities of autoliticas enzyme and to the close pH of the neutrality. Beyond of those intrinsic factors related to the crustacean, the process of extraction of its meats is accomplished, in the great majority of the times, in unsatisfactory hygienic-sanitary condition, causing, like this, a high text of contamination of these. With the objective of analyzing the microbiologic, microscopic and parasitical quality of the crabmeat traded in two municipal districts of Pani (Sao Caetano de Odivelas and Braganya), 30 samples were researched, acquired from the meat collectors, in its points of collection. In the microbiologic analysis, presence was observed, in high levels, of fecal coliforms and S. aureus, in both municipal districts, however Salmonella (s. panama: sorogrupo D) was only detected in Braganya/Vila de Caratateua. It is stood out that, great part of collection points presented their samples out of the effective legal patterns in the current Brazilian legislation. The microscopic analysis revealed constant dirt presence (fragments and stick chips, seed, fibber and chips of vegetable origin, for the human, excrement and insect larva). However, the parasitical analysis was negative for the detection of cysts of protozoarius (E. histolytica/E. dispar and G. lamblia). The results reveal the precariousness of the hygienic-sanitary conditions of the researched samples, indicating this way the need of being created, on the part of the competent authorities, a registration of the Ministerio da Agricultura e Secretaria da Agricultura do Estado, so that the manufacturing and the commercialization of this product are made in agreement with Brazilian and state sanitary rules.
Acesso aberto (Open Access)
Análise higiênico-sanitária de polpas de cupuaçu e bacuri comercializadas na cidade de Belém, Pará
(Universidade Federal do Pará, 2005-05-30) CAVALCANTE, Rejane Maria Sales; FRAIHA NETO, Habib; http://lattes.cnpq.br/9202245658963683
The consuption of fruit pulp and your derivatives have been increased, because of their nutricional properties, flavors variety and aromas, and the increasing search for the products with in natura food characteristics. The pulps are used for direct comsuption or as a raw material for juice, ice cream, yogurt industries. The process to obtain pulp should be done in right hygiene conditions, followed by apropriated storage, to assure integrity and quality of products. The study objective was value sanytary hygienic conditions of cupuaçu and bacuri pulps sold in the city of Belém, considering that the processing involves fruit manipulation, sometimes with not apropriated hands. Your realization counted on the Division of Sanitary Vigilancy of Municipal Health Department, Central Laboratory of the State of Pará (LACEN) and Laboratory of Parasitology on Biological Sciences Center Support. The methods used were microbiological, microscopical, parasitological analysis of 33 samples bought in 11 street markets, with in we easily find these products, the street markets are well distributed in the neighborhoods of Belém Icoaraci small town. 22 cupuaçu and 11 bacuri samples were analysed. The microbiological analysis were made regarding presence of 45ºC coliformes using more probable number (NMP) method, and Salmonella sp., in agreement with RDC nº12/2001/ANVISA. The results were all negatives. The microscopical examination, followed nº1/2000 Instruction of Supplying and Agriculture Department didn’t show any dirty in the samples. The parasitological analysis was made following Faust method and no worms or protozoan were found. Although the street markets observation of sanitary hygienic conditions suggests product cantamination, all 33 samples of cupuaçu and bacuri pulps were considered good for consuption, in agreement with current legislation. These results can be explained by the acid level and the presence of citric acid both products, and because of the freezing process.
Acesso aberto (Open Access)
Análise molecular de rotavírus tipo G9 de crianças na Região Norte do Brasil
(Universidade Federal do Pará, 2016-10-31) GUERRA, Sylvia de Fátima dos Santos; SOARES, Luana da Silva; http://lattes.cnpq.br/0556695301015859; MASCARENHAS, Joana D'Arc Pereira; http://lattes.cnpq.br/5156164089432435
Group A rotavirus (RVA) is the most viral agent associated with acute gastroenteritis, responsible for about 200,000 deaths among children aged under five years annually. RVA belongs to Reoviridae family, Rotavirus genus, its genome is composed by double-stranded RNA (dsRNA) with 11 segments encoding 12 proteins, six structural (VPs) and six non-structural (NSPs). Each protein designating a specific RVA genotype, being VP7 protein responsible for G genotype and currently there are 32 genetic variants. G9 genotype emerged on a global scale in the 90s, a period before RVA vaccine introduction in Brazil that occurred in 2006, and is continuously detected until present day. This study aimed to describe the frequency and genetic constellation associated with the current G9 genotype in Northern Brazil. It was selected 50 samples collected between 1999 and 2013, being 45 G9P[8], 2 G9P[4] and 3G9P[6], for fecal suspension preparation and dsRNA extraction for further genome amplification and sequencing of nucleotides. It was observed that during pre-RVA vaccine introduction period G9 frequency rate was 43%, while after RVA vaccine introduction the most frequece obtained was 12.5% (2008 to 2010). Phylogenetic analysis of VP7 gene showed that all strains belong to lineage III of G9, observing aminoacidic substitutions in antigenic sites when compared with vaccine strains. It was demonstrated in VP4 gene that P[8] strains gathered in lineage III, whereas P[4] grouped into lineage V and P[6] strains into lineage I. All G9P[6] and G9P[4] samples were associated with DS-1 constellation, genogroup 2, while G9P[8] samples showed Wa constellation, genogroup 1, except for one sample showing NSP3 gene with DS-1 profile. G9 samples from Northern region analyzed were associated with the expected constellations described in other parts of the world, except for one G9P[8] sample that showed a genetic restructuration in NSP3 protein. In the present study the same G9 lineages have circulated during pre and post RVA vaccine introduction periods, and it was described aminoacidic substitutions in relevant antigenic regions, such as it was reported genetic restructuration phenomenon in one sample of this genotype, emphasizing the continuous monitoring of current genetic variants of RVA.
Acesso aberto (Open Access)
Análise molecular dos genes VP4, VP7 e NSP4 de rotavírus do tipo G1 circulantes em Belém e Marituba, Pará, Brasil, de 1982 a 2008
(Universidade Federal do Pará, 2011) SOARES, Luana da Silva; MASCARENHAS, Joana D'Arc Pereira; http://lattes.cnpq.br/5156164089432435; LINHARES, Alexandre da Costa; http://lattes.cnpq.br/3316632173870389
Rotaviruses are major viral agents of acute gastroenteritis and responsible for 36% of hospitalization for diarrhea among children less than five years of age, resulting in 453.000 deaths annually, mostly in developing countries. Rotavirus is a member of Reoviridae family, and its genome consists of 11 double-stranded RNA (dsRNA) which encode 12 proteins. G1 rotavirus is commonly detected in epidemiological investigations, occurring under different prevalence rates. The aim of this study was to analyze the VP4, VP7 and NSP4 diversity genetic of G1 rotavirus circulating in Belém and Marituba, Pará, Brazil, from 1982 to 2008. We selected 83 samples previously characterized as G1 type and submitted to RT-PCR. The samples were from seven studies conducted in IEC. It was possible amplification for 63 (75.9%) specimens. Lineages 1 (8/63, 12.7%), 2 (29/63, 46.0%), 3 (18/63, 28.6%) and 9 (8/63, 12.7%) of VP7 gene were detected. The sublineages 2E and 3A were co-predominant detected in 57.1% (36/63) of samples. Three amino acid substitutions (97 [D→E], 147 [S→N] and 218 [I→V]) were observed in VP7 antigenic regions (A, B and C) in samples of 1, 2 and 9 lineages. All samples showed P[8] specificity for VP4 gene and lineages 2 (21/63, 33.3%) and 3 (42/63, 66.7%) were detected. Two substitutions (35 [I→V] and 38 [S→G]) occurred in antigenic region of VP4 of samples analyzed. For NSP4 gene, all samples belonged to E1 type. Phylogenetic analysis of NSP4 gene revealed that occurred changes in nucleotide positions 47 (C→T) and 101 (T→C), resulting in amino acid substitutions at positions 16 (S→P) and 34 (L → P) in all samples and 9 specimens displayed amino acid substitution in NSP4 toxicity residue (aa 131). This study allowed us to broaden our understanding about genetic diversity and circulation of G1 variants and represents the first molecular epidemiology analyze of this genotype in Brazil corroborating the high heterogeneity of this genotype.
Acesso aberto (Open Access)
Análise morfológica das células de Langerhans purificadas da epiderme de camundongo Balb/c, após interação in vitro com Leishania (Viannia) brasiliensis e Leishamania (Leishmania) amazonensis
(Universidade Federal do Pará, 2003) QUARESMA, Mariana do Socorro Maciel; SALGADO, Claudio Guedes; http://lattes.cnpq.br/2310734509396125
Langerhans Cells (LC) are MHC class II positive antigen-presenting cells that constitute 2-3% of all epidermal cells, which have been demonstrated to stimulate a vigorous T-cell response to Leishmania major. New World cutaneous leishmaniasis is caused by different species, presenting diverse clinical pictures, varying from cutaneous localized to mucous or anergic disease. Using a "panning" technique, murine (Balb/c) epidermal LC were purified to around 95% purity (pLC). The freshly prepared LC (fLC) presented small, delicate dendrites and the classic Birbeck granules. Parasites of the subgenera Viannia and Leishmania, which are genetically very distinct, have been suggested to have a possible species-specific response in cell mediated immunity. In this study, pLC and L. (V.) braziliensis or L. (L.) amazonensis were cultured and their morfology were analyzed after 12h or 36h culture. Using Giemsa stain and scanning electron microscopy, different morphologic changes were detected on LC afier 12h culture on both cultures, LC and L. (V.) braziliensis or LC and L. (L.) amazonensis. After interaction with L. (V.) braziliensis, LC became more dendritic, that were smaller in lenght when compared to LC cultivated alone. In contrast, after interaction with L. (L.) amazonensis, LC became round shaped with a few cells showing some dendrites. Moreover, there was a dose contact between the promastigotes flagelli and LC, but without phagocytosis in 12h or 36h culture, what is different of the observations found in the literature on the interaction between LC and L. major. These results suggest that LC primary response against different species of Leishmania could be distinct upon the species involved in the interaction process.
Acesso aberto (Open Access)
Análise multivariada de características clínicas de PET/MAH e níveis de expressão gênica e derivação de modelos de predição diagnóstica em pacientes infectados com o HTLV-1
(Universidade Federal do Pará, 2017) VIRGOLINO, Rodrigo Rodrigues; RODRIGUES, Anderson Raiol; http://lattes.cnpq.br/4030747999301402
Human T-cell lymphotropic virus type 1 (HTLV-1)- associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a debilitating condition resulting from inflammation of the nerve tissue of the spinal cord caused by the action of HTLV-1. The aim of the present study was to evaluate the classification of individuals infected with HTLV-1 and propose a clinical prediction model for the occurrence of HAM/TSP. A database composed of 63 infected individuals was used, 23 of whom were diagnosed with HAM/TSP using the criteria recommended by the World Health Organization. Functional predictors (ordinal variables), gene expression levels (continuous variables) and sex (demographic variable) were also used. A mixed principal component analysis was employed, followed by hierarchical cluster analysis to determine the allocation of individuals into groups in an unsupervised fashion and compare the results to the classifications defined by clinicians. Diagnostic prediction models were then derived based on penalized binary logistic regression, which is suitable when the sample size is small. The unsupervised analysis showed that the patients were arranged into three groups: patients with HAM/TSP, patients without HAM/TSP and an intermediate group composed of individuals with and without the disease. Two models were derived from the statistical modeling – one with a penalization criterion of 0.032 and another with a criterion of 0.1 (more extreme). Both models were evaluated by internal validation using 10-fold crossvalidation. The variables that composed the final models were degree of gait alteration, derived Tinetti score, left and right adductor muscle tone and left triceps surae muscle tone. Statistical prediction methods may constitute a useful tool to support the diagnoses of HAM/TSP, especially in settings with limited resources.