987 resultados para COMMON CAROTID-ARTERY


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Objectivos: A prevalência de Sindroma Metabólica (SM) e diabetes é variável consoante a definição utilizada, assim como com a região geográfica e o grupo étnico estudado. Não existem estudos em indivíduos portugueses com suspeita de doença arterial coronária. Analisámos a prevalência de SM e diabetes nesta população específica de doentes, comparando também definições. Métodos: Incluíram-se no estudo 300 indivíduos, com uma idade media de 64 ± 9 anos, 59% do género masculino, admitidos para angiografia coronária electiva, tendo sido excluídos os doentes com doença cardíaca previamente conhecida. Avaliou-se a prevalência de SM e de diabetes. Resultados: A prevalência ajustada de SM foi de 39,3% (critério NCEP-ATP III), 53,8% (critério IDF) e 48,4% (critério AHA/NHLBI). A prevalência ajustada de diabetes foi de 14,8% pela definição prévia da ADA e de 36.4% com a definição mais recente. A concordância global entre as definições de SM foi de 45,3%, sendo mais elevada entre as definições da AHA/NHLBI e da NCEP-ATP III (Kappa 0,821). A prevalência de SM está altamente dependente da idade em ambos os géneros, sendo mais prevalente no género feminino. A prevalência de diabetes é também dependente da idade, sendo semelhante em ambos os géneros. O componente de SM mais frequente é a hipertensão arterial, seguido pela obesidade abdominal, elevação da glicose, colesterol-HDL baixo e finalmente elevação dos triglicéridos. É também importante referir que 60% dos doentes estavam sob terapêutica hipolipemiante (56,6% com estatinas, 1,7% com fibratos e 1,7% com ambos). A diferença mais significativa entre géneros no que diz respeito aos componentes de SM é a elevada prevalência de obesidade abdominal no género feminino. Conclusões: Nesta população de alto risco, a prevalência de SM é elevada, sendo contudo a prevalência de diabetes semelhante à registada em estudos epidemiológicos na população geral.

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Introduction Coronary artery disease is associated with decreased levels of physical activity, contributing to increases in abdominal fat and consequently increasing metabolic risk. The innovative use of microcurrents may be an effective method to increase the lipolytic rate of abdominal adipocytes. This study aimed to investigate the effects of utilizing microcurrents in a home-based exercise program in subjects with coronary artery disease to assess changes in total, subcutaneous and visceral abdominal adipose tissue. Methods This controlled trial included 44 subjects with myocardial infarction, randomly divided into Intervention Group 1 (IG1; n = 16), Intervention Group 2 (IG2; n = 12) and Control Group (CG; n = 16). IG1 performed a specific exercise program at home during 8 weeks, and IG2 additionally used microcurrents on the abdominal region before the exercise program. All groups were given health education sessions. Computed tomography was used to evaluate abdominal, subcutaneous and visceral fat, accelerometers to measure habitual physical activity and the semi-quantitative food frequency questionnaire for dietary intake. Results After 8 weeks, IG2 showed a significantly decrease in subcutaneous fat (p ≤ 0.05) when compared to CG. Concerning visceral fat, both intervention groups showed a significant decrease in comparison to the CG (p ≤ 0.05). No significant changes were found between groups on dietary intake and habitual physical activity, except for sedentary activity that decreased significantly for IG2 in comparison with CG (p ≤ 0.05). Conclusion This specific home-based exercise program using microcurrent therapy for individuals with coronary artery disease showed improvements in visceral and subcutaneous abdominal fat.

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To evaluate the short and mid-term results of prostatic artery embolization in patients with benign prostatic embolization. Retrospective study between March 2009 and June 2011 with 103 patients (mean age 66.8 years, 50-85) that met our inclusion criteria with symptomatic benign prostatic hyperplasia. The clinical outcome was evaluated by the International Prostate Symptom Score (IPSS), quality of life (QoL), International Index of Erectile Function, prostate volume (PV), prostate-specific antigen (PSA), peak urinary flow (Q(max)), and post-void residual volume (PVR) measurements at 3 and 6 months, 1 year, 18 months, and 2 years after PAE and comparison with baseline values was made. Technical and clinical successes, as well as poor clinical outcome definitions, were previously defined. In this review, we evaluate the short and mid-term clinical outcomes and morbidity of patients treated only with non-spherical polyvinyl alcohol. Six months after the procedure, the PV decreased about 23%, IPSS changed to a mean value of 11.95 (almost 50% reduction), the QoL improved slightly more than 2 points, the Q(max) changed to a mean value of 12.63mL/s, the PVR underwent a change of almost half of the baseline value, and the PSA decreased about 2.3ng/mL. In the mid-term follow-up and comparing to the baseline values, we still assisted to a reduction in PV, IPSS, QoL, PVR, and PSA, and an increase in Q(max). Prostatic Artery Embolization is a safe procedure with low morbidity that shows good short- and mid-term clinical outcome in our institution.

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A 31 year old male Caucasian received a renal cadaveric allograft. Reconstruction of an inferior polar artery was corrected pre-implantation. Delayed graft function occurred leading to dialysis support for one month. Graft biopsies(days 7, 15) showed acute tubular necrosis(ATN) and no rejection. Serial ultrasound (US), performed on average weekly, were compatible with ATN. On day 31, Doppler US and a CAT scan suggested for the first time a pseudoaneurysm adjacent to the implantation of the graft artery on the external iliac artery. For clinical and technical reasons, arteriography was only performed on day 67, when serum creatinine was 3.3 mg/dl. It showed a large pseudoaneurysm with an arteriovenous fistula to the right common iliac vein. Compression of the right external iliac artery was clear. In an attempt to close the arteriovenous fistula, the communication with the pseudoaneurysm was embolised with gelfoam and metallic coils with partial success. One week later, by right femoral approach a covered wallstent was placed immediately below the origin of the graft artery.Subsequent Doppler US and arteriography con-firmed closure of the communication with thepseudoaneurysm and of the arteriovenous fistula. The calibre of the right external iliac artery was then normal. By month 18, serum creatinine is stable at 2.1 mg/dl. We can only speculate on the origin of thepseudoaneurysm and of the AV fistula, whichwere not evident until one month post-transplantation. Backtable surgery was performed on thepolar not the main graft artery. Invasive angiography was irreplaceable in this unusual clinical situation.

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BACKGROUND: Variations in the major arteries of the upper limb are estimated to be present in up to one fifth of people, and may have significant clinical implications. CASE PRESENTATION: During routine cadaveric dissection of a 69-year-old fresh female cadaver, a superficial brachioulnar artery with an aberrant path was found bilaterally. The superficial brachioulnar artery originated at midarm level from the brachial artery, pierced the brachial fascia immediately proximal to the elbow, crossed superficial to the muscles that originated from the medial epicondyle, and ran over the pronator teres muscle in a doubling of the antebrachial fascia. It then dipped into the forearm fascia, in the gap between the flexor carpi radialis and the palmaris longus. Subsequently, it ran deep to the palmaris longus muscle belly, and superficially to the flexor digitorum superficialis muscle, reaching the gap between the latter and the flexor carpi ulnaris muscle, where it assumed is usual position lateral to the ulnar nerve. CONCLUSION: As far as the authors could determine, this variant of the superficial brachioulnar artery has only been described twice before in the literature. The existence of such a variant is of particular clinical significance, as these arteries are more susceptible to trauma, and can be easily confused with superficial veins during medical and surgical procedures, potentially leading to iatrogenic distal limb ischemia.

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Background : The neonatal arterial switch operation (ASO) is now the standard of care for children born with transposition of the great arteries. Stenosis of the neopulmonary artery on long‑term follow up is a known complication. Methods : We performed a retrospective analysis of eleven patients who underwent a cardiac magnetic resonance imaging (MRI) due to echocardiographic evidence suggestive of stenosis of the neopulmonary artery or its branches (mean estimated Doppler gradient 48 mmHg, min 30 mmHg, max 70 mmHg). A comprehensive evaluation of anatomy and perfusion was done by cardiac MRI. Results : The branches of the neopulmonary artery (neo PA) showed decreased caliber in three patients unilaterally and in two patients, bilaterally. Magnetic resonance (MR) perfusion studies showed concomitant decreased flow, with discrepancy between the two lungs of 35/65% or worse, only in the three patients with unilateral obstruction, by two different MR perfusion methods. Conclusions : Cardiac MR can be used as a comprehensive non‑invasive imaging technique to diagnose stenosis of the branches of the neopulmonary after the ASO, allowing evaluation of anatomy and function of the neoPA, its branches, and the differential perfusion to each lung, thus facilitating clinical decision making.

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Phacomatosis pigmentovascularis is a rare syndrome characterized by the coexistence of a pigmented nevus and a cutaneous vascular malformation. We report a 5-year-old boy with all the typical findings of phacomatosis pigmentovascularis type Ia. Although its existence according to the traditional classification has been questioned, this case represents a very rare association of a capillary vascular malformation and a common keratinocytic nevus of the soft type.

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The decrease in the number of cadaveric donors has proved a limiting factor in the number of liver transplants, leading to the death of many patients on the waiting list. The living donor liver transplantation is an option that allows, in selected cases, increase the number of donors. One of the most serious complications in liver transplantation is hepatic artery thrombosis, in the past considered potentially fatal without urgent re-transplantation. A white male patient, 48 years old, diagnosed with hepatocellular carcinoma in chronic liver failure caused by hepatitis B virus, underwent living donor liver transplantation (right lobe). Doppler echocardiography performed in the immediate postoperative period did not identify arterial flow in the right branch, having been confirmed thrombosis of the right hepatic artery in CT angiography. Urgent re-laparotomy was performed, which consisted of thrombectomy and re-anastomosis of the hepatic artery with segmental splenic artery allograft interposition. The patient started anticoagulation and antiplatelet therapy with acetylsalicylic acid. Serial evaluation with Doppler echocardiography showed hepatic artery patency. At present, the patient is asymptomatic. One of the most devastating complications in liver transplantation, and particularly in living liver donor, is thrombosis of the hepatic artery; thus, early diagnosis and treatment is vital. The rapid intervention for revascularization of the graft avoids irreversible ischemia of the bile ducts and hepatic parenchyma, thus avoiding the need for re-transplantation.

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Combined pituitary hormone deficiency (CPHD) has an incidence of approximately 1 in 8000 births. Although the proportion of familial CPHD cases is unknown, about 10% have an affected first degree relative. We have recently reported three mutations in the PROP1 gene that cause CPHD in human subjects. We report here the frequency of one of these mutations, a 301–302delAG deletion in exon 2 of PROP1, in 10 independently ascertained CPHD kindreds and 21 sporadic cases of CPHD from 8 different countries. Our results show that 55% (11 of 20) of PROP1 alleles have the 301–302delAG deletion in familial CPHD cases. Interestingly, although only 12% (5 of 42) of the PROP1 alleles of our 21 sporadic cases were 301–302delAG, the frequency of this allele (in 20 of 21 of the sporadic subjects given TRH stimulation tests) was 50% (3 of 6) and 0% (0 of 34) in the CPHD cases with pituitary and hypothalamic defects, respectively. Using whole genome radiation hybrid analysis, we localized the PROP1 gene to the distal end of chromosome 5q and identified a tightly linked polymorphic marker, D5S408, which can be used in segregation studies. Analysis of this marker in affected subjects with the 301–302delAG deletion suggests that rather than being inherited from a common founder, the 301–302delAG may be a recurring mutation.

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Ophthalmoplegic migraine (OM) is a childhood disorder of uncertain etiology manifesting recurrent unilateral headache associated with a transitory oculomotor (usually IIIrd nerve) palsy. Recent publications emphasize the finding on MRI of contrast enhancement in the IIIrd nerve suggesting that OM may be a recurrent inflammatory neuropathy. We report the case of a 7-year-old boy with typical symptoms of this disorder. Angio MR and Angio CT revealed the presence of an infundibular dilatation of a perforating branch of the posterior cerebral artery adjacent to the symptomatic IIIrd nerve. We speculate that this and perhaps other cases of OM may have a different pathophysiology related to compression of the IIIrd nerve by an adjacent vascular structure that could activate the trigeminovascular system and produce migrainous pain.

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Combined pituitary hormone deficiency (CPHD) has an incidence of approximately 1 in 8000 births. Although the proportion of familial CPHD cases is unknown, about 10% have an affected first degree relative. We have recently reported three mutations in the PROP1 gene that cause CPHD in human subjects. We report here the frequency of one of these mutations, a 301-302delAG deletion in exon 2 of PROP1, in 10 independently ascertained CPHD kindreds and 21 sporadic cases of CPHD from 8 different countries. Our results show that 55% (11 of 20) of PROP1 alleles have the 301-302delAG deletion in familial CPHD cases. Interestingly, although only 12% (5 of 42) of the PROP1 alleles of our 21 sporadic cases were 301-302delAG, the frequency of this allele (in 20 of 21 of the sporadic subjects given TRH stimulation tests) was 50% (3 of 6) and 0% (0 of 34) in the CPHD cases with pituitary and hypothalamic defects, respectively. Using whole genome radiation hybrid analysis, we localized the PROP1 gene to the distal end of chromosome 5q and identified a tightly linked polymorphic marker, D5S408, which can be used in segregation studies. Analysis of this marker in affected subjects with the 301-302delAG deletion suggests that rather than being inherited from a common founder, the 301-302delAG may be a recurring mutation.

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Antibodies against the Salmonella typhi enterobacterial common antigen (ECA) and the O and H antigens were investigated in sera from healthy male subjects who had been previously vaccinated with the typhoid vaccine. No serological response to ECA was observed. Sera from subjects not previously vaccinated presented titers of ECA hemagglutinins which quantitatively were related to the presence ofH titers, but not to O agglutinins but with no statistical significance. The results are discussed in relation to the possible protective immunological mechanisms in typhoid fever.

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RESUMO- Introdução: A obesidade e a Síndrome Metabólica (SM) são atualmente um importante problema de saúde pública, com prevalências crescentes, que se acompanham também por aumento da prevalência de Diabetes Mellitus (DM).Estudos prévios demonstram associação destas entidades com o aumento de risco de eventos cardiovasculares, em particular a DM. A SM tem sido uma entidade muito debatida nos últimos anos, com aparecimento de diversas definições, contribuindo para resultados díspares no que diz respeito à influência da SM nas doenças cardiovasculares. Também têm sido descritas variações étnicas e regionais. Para além de alguns estudos epidemiológicos na população geral, a informação relativamente à sua influência na presença de doença cardiovascular é desconhecida em Portugal, em particular em populações com suspeita de doença coronária. Objetivos - Esclarecimento de questões relacionadas com a prevalência de SM e a sua influência na evolução de doença ateroclerótica arterial por avaliação de uma população com suspeita de doença coronária. População e Métodos - Estudo observacional, transversal, com inclusão prospetiva de indivíduos admitidos letivamente para realização de angiografia coronária por suspeita de doença coronária, tendo sido também efetuadas análises laboratoriais e ecografia carotidea para avaliação da espessura intima-média carotidea (EIMc) e da presença de placas carotídeas. Efetuou-se avaliação dos parâmetros demográficos, antropométricos, determinação do perfil lipídico, glicémia e insulinémia. Os exames angiográficos foram analisados por análise quantitativa semi-automática. Foram excluídos indivíduos com antecedentes conhecidos de doença cardíaca. Resultados - Incluíram-se 300 doentes, com idade média de 64 ± 9 anos, 59% do género masculino. A prevalência de SM de acordo com a definição da AHA/NHLBI foi 48,4% (ajustada para idade e género da população portuguesa) e a prevalência de DM foi 14,8% (ajustada). A concordância global das três definições mais recentes de SM foi de apenas 43%. A prevalência de SM aumenta com a idade e é também mais elevada no género feminino. O componente mais frequente foi a hipertensão arterial, seguido pela obesidade abdominal, a elevação da glicémia e por fim as alterações dos triglicéridos e do colesterol HDL. Por outro lado, a presença de doença coronária significativa (lesões ≥50%) ocorreu em apenas 51,3% dos doentes, sendo ainda mais baixa no género feminino. Demonstrou-se também uma baixa capacidade preditiva para doença coronária dos testes não invasivos clássicos, em particular no género feminino. A prevalência de doença coronária significativa foi idêntica nos indivíduos com SM comparativamente com indivíduos sem alterações metabólicas (46,3% vs. 48,2%, respectivamente), sendo mais elevado nos diabéticos (65,2%). Os fatores predizentes independentes de doença coronária significativa foram a idade, o género masculino, a elevação da glicémia e dos triglicéridos. Pelo contrário, o Índice de Massa Corporal (IMC) mostrou uma associação protetora relativamente à presença de doença coronária. A SM não é fator predizente de doença coronária. Relativamente às dimensões dos vasos coronários, o IMC correlaciona-se positivamente e a glicémia / DM correlacionam-se negativamente. A EIMc aumenta com o aumento da idade e no género masculino. A EIMc foi intermédia nos doentes com SM (0,88 ± 0,31 mm) comparativamente com os doentes diabéticos (0,97 ± 0,34 mm) e os indivíduos “Normais” (0,85 ± 0,34 mm). Os fatores predizentes independentes de EIMc foram a idade, o género masculino, o colesterol HDL e a insulinémia. A EIMc permite predizer com uma acuidade moderada a presença de doença coronária significativa (AUC 0,638), em particular no género feminino, sendo um fator predizente independente de presença de doença coronária (OR 2,35, IC 95% 1,04-5,33. p=0,04). Apesar de não se correlacionar com o número de vasos coronários com doença, correlacionou-se com a gravidade da doença (pelo score de Gensini). A insulinémia e o índice HOMA aumentam diretamente com a idade e com o IMC, sendo contudo sobreponíveis em ambos os géneros. Os fatores predizentes de índice HOMA (resistência à insulina) foram o IMC, bem como os restantes componentes de SM, estando o índice HOMA relacionado com a presença de SM e o número dos seus componentes presentes. O limiar para resistência à insulina foi de 2,66 e para SM foi 2,41. Ao contrário das restantes definições de SM, a definição da AHA/NHLBI não é predizente da presença de DM no género masculino. A associação da resistência à insulina com doença coronária foi limiar (OR 1,13, IC 95% 1,00-1,28, p=0,045). Conclusões - Numa população com suspeita de doença coronária, a prevalência de SM é muito elevada (superior a 50%), sendo a prevalência de DM de 23%. Também a obesidade e o excesso de peso foram extremamente prevalentes nesta população. A concordância entre definições de SM é baixa. A hipertensão arterial e a obesidade abdominal são os componentes mais frequentes de SM, sendo menos prevalentes as alterações lipídicas. Pelo contrário, a presença de doença coronária significativa foi muito baixa, em particular nas mulheres. A SM não se associou à presença de doença coronária significativa, estando esta mais dependente das alterações do metabolismo glicídico e dos triglicéridos, bem como de outros fatores de risco não modificáveis, nomeadamente a idade e o género. A EIMc da carótida comum e a presença de placas carotídeas é mais elevada nos indivíduos diabéticos, estando também ligeiramente aumentada nos doentes com SM, sendo os fatores predizentes de EIMc apenas a idade, o género, a hiperinsulinémia bem como os níveis baixos de colesterol HDL. A utilização da avaliação da EIMc na estratificação de risco pré-angiografia coronária, poderá ser útil no género feminino. A hiperinsulinémia e o índice HOMA (índice de resistência à insulina), estão relacionados com o IMC e consequentemente com a presença de obesidade, embora também se correlacione de forma independente com os outros componentes de SM. A resistência à insulina associou-se à presença de SM. Relativamente à capacidade preditiva da coexistência com DM, verificou-se associação com a definição da NCEP-ATP III e da IDF, contudo, a definição da AHA/NHLBI só foi predizente de DMnas mulheres. -------------ABSTRACT - Introduction: Obesity and Metabolic Syndrome (MS) are a major public health problem, with increasing prevalence, that follows the increase in diabetes prevalence. Previous studies showed an association of both entities with increased cardiovascular risk, particularly diabetes. MS has been debated in the last few years, with several definitions and different results when analysed the influence of MS on cardiovascular diseases. There are also some regional and ethnical variations. Beyond general population epidemiological studies, information about the influence on cardiovascular disease in Portugal is unknown, particularly in patients with suspected coronary disease. Objectives- To clarify several questions regarding the prevalence of MS and the influence in arterial atherosclerotic disease by evaluation of a population with suspected coronary artery disease. Population and Methods- Observational, cross-sectional study with prospective inclusion of individuals admitted electively for coronary angiography with suspicion of coronary artery disease. All individuals also performed laboratorial evaluation and carotid ultrasound to evaluate carotid intima-media thickness (cIMT) and carotid plaques. We also evaluated demographic, anthropometric parameters, lipid profile, blood glucose and blood insulin. Angiographic data was obtained by semi-automated quantitation. Individuals with previously known cardiac history were excluded from the study. Results- We included 300 individuals with a mean age of 64 ± 9 years, 59% males. MS prevalence according to AHA/NHLBI definition was 48.4% (adjusted for age and gender of the Portuguese population) and the adjusted prevalence of diabetes was 14.8%. Global agreement between the more recent three definitions of MS was only 43%. MS prevalence increases with age and is also higher in women. The most frequent components were hypertension and abdominal obesity, followed by elevated glucose and triglicerides and low HDL-cholesterol. Significant coronary artery disease (stenosis ≥50%) was present in only 51.3% of patients, being lower in females. Non-invasive tests also had a low predictive capacity, particularly in females. The prevalence of significant coronary disease was identical in patients with MS compared with normal metabolism individuals (46.3% vs. 48.2%, respectively), being higher in diabetics (65.2%). Independent predictive factors for coronary disease were age, male gender, high blood glucose and triglycerides. On the contrary, Body Mass Index (BMI) was a protective factor for coronary disease. MS wasn’t a predictor of coronary disease. BMI showed a positive correlation with coronary vessel diameter and glucose /diabetes had a negative correlation. CIMT increased with age and was higher in males. CIMT was intermediate in patients with MS (0.88 ± 0.31 mm) when compared to diabetic patients (0.97 ± 0.34 mm) and “Normal” individuals (0.85 ± 0.34 mm). Independent predictors for cIMT were age, male gender, HDL-cholesterol and insulin. CIMT had a moderate predictive accuracy for coronary disease (AUC 0,638), particularly in females and is an independent predictor of the presence of significant coronary disease (OR 2.35, 95% CI 1.04-5.33. p=0.04). Although it did not correlate with the number of diseased coronary arteries, it correlated with coronary disease severity by the Gensini score. Insulin and HOMA index increase directly with age and BMI, but were identical in both genders. Predictive factors for HOMA index (insulin resistance) were BMI as well as the other MS components. HOMA index is related to MS and the number of its components. The cut-off for insulin resistance was 2.66 and for MS 2.41. Unlike other MS definitions, AHA/NHLBI definition is not a predictor of diabetes in males. There was a borderline association between insulin resistance and coronary disease (OR 1.13, 95% CI 1.00-1.28, p=0.045). Conclusions - In a population of patients with suspected coronary disease, MS prevalence is extremely high (above 50%) with a diabetes prevalence of 23%. Also obesity and overweight are very prevalent in this population. Global agreement between MS definitions is however low. Hypertension and abdominal obesity are the most frequent components, with a lower prevalence of lipid abnormalities. Coronary disease prevalence was low, particularly in women. MS wasn’t associated with coronary disease. Coronary disease was related to glucose and triglycerides, as well as with other non-modifiable factors such as age and gender. CIMT and carotid plaques are increased in diabetic patients, and also slightly elevated in patients with MS, but cIMT independent predictors were age, male gender, insulin and HDLcholesterol. CIMT can be useful in risk stratification before coronary angiography particularly in women. Elevated insulin and HOMA index (an insulin resistance index) are related with BMI and consequently with obesity, and it was also correlated with other MS components. Insulin resistance was associated with MS. The presence of diabetes was associated with the presence of MS by NCEP-ATP III and IDF definitions; however, AHA/NHLBI definition was only predictive of diabetes in females.

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In order to evaluate Callithrix jacchus as an animal model for mansoni schistosomiasis, a group of 10 male animals were once percutaneously exposed to 250 cercariae of the Schistosoma mansoni SLM (São Lourenço da Mata) strain. Animals were periodically bled for measuring serum level of enzymes and proteins and for blood cell counting. When comparing pre-infection to post-infection values, a significant increase was found for alkaline phosphatase at 15 to 120 days p.i., differential counts of eosinophil at 45 and 60 days, and total protein and global eosinophil counts at 120 days. No Schistosoma mansoni eggs were found in stools. Adult worms of small size were recovered from five animals. At day 120, the number of Schistosoma mansoni eggs/g of tissue was 0-289.7 (liver), 0-30.1 (large intestine) and 0-171.4 (small intestine). These findings lead us to classify Callithrix jacchus as a non-permissive host to the SLM strain of Schistosoma mansoni.