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1.
Arq Bras Endocrinol Metabol ; 55(5): 349-52, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21881819

RESUMO

Pseudohypoparathyroidism (PHP) is characterized by resistance to the peripheral action of parathyroid hormone. We present a case of a seven-year-old girl who was admitted at the service of Instituto Materno Infantil de Pernambuco, IMIP, with motor episodes affecting the arms. Her calcium level was normal. Computed tomography showed calcifications in frontal lobes and basal ganglia. After six years: calcium was 5.5 mg/dL; phosphorus, 8.3 mg/dL and serum parathyroid hormone was 1,318 pg/mL. Pseudohypoparathyroidism diagnosis was considered. This is the first description of a case of pseudohypoparathyroidism without Albright's stigma, with cerebral calcification, and no calcium abnormalities at the initial clinical manifestation.


Assuntos
Encefalopatias/diagnóstico , Calcinose/diagnóstico , Cálcio/sangue , Lobo Frontal , Hipoparatireoidismo/diagnóstico , Calcinose/patologia , Criança , Feminino , Lobo Frontal/diagnóstico por imagem , Lobo Frontal/patologia , Humanos , Fósforo/análise , Radiografia , Valores de Referência
3.
Metab Syndr Relat Disord ; 8(5): 403-10, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20939705

RESUMO

BACKGROUND: Hypertriglyceridemia associated with low high-density lipoprotein (HDL) levels and hypercholesterolemia is the most common metabolic disorder among human immunodeficiency virus (HIV)-infected patients using antiretroviral therapy. This atherogenic profile is associated with increased cardiovascular risk among these patients. Apolipoprotein B (apoB) is a better parameter than low-density lipoprotein (LDL) for evaluating lipids and cardiovascular risk among patients with diabetes and metabolic syndrome, but studies of apoB among HIV-infected patients are scarce. METHODS: A cross-sectional study was conducted to estimate hyperapolipoprotein B (hyperapoB) prevalence and its association with other factors among HIV-infected patients attended in Recife, Pernambuco, Brazil. RESULTS: The prevalence of hyperapoB was 32.4% among 256 patients (62.1% male), with 90 mg/dL as the cutoff point. It was associated with prolonged use (>3 years) of antiretroviral therapy [odds ratio (OR), 3.63; 95% confidence interval (CI), 1.24-10.6], hypertriglyceridemia (OR, 2.45; 95% CI, 1.22-4.91), insulin resistance according to homeostasis model assessment of insulin resistance (HOMA-IR) (OR, 2.12; 95% CI, 1.03-4.35), past history of diabetes (OR, 3.58; 95% CI, 1.0-12.7), and hypertension (OR, 1.98; 95% CI, 0.92-4.28). It was not associated with low HDL levels or self-report lipodystrophy. ApoB was higher in patients with metabolic syndrome according to the National Cholesterol Education Program (NCEP) criteria and in those with higher Framingham scores. CONCLUSIONS: ApoB is a good parameter for evaluating lipid levels in HIV-infected patients with hypertriglyceridemia, among whom LDL measurements may not be appropriate. ApoB might be useful for diagnosing and treating hypertriglyceridemia in this population. The association between hyperapoB and hypertriglyceridemia and diseases relating to insulin resistance among HIV-infected patients suggests that this group of patients presents higher cardiovascular risk.


Assuntos
Apolipoproteínas B/sangue , Doenças Cardiovasculares/sangue , Infecções por HIV/sangue , Adulto , Antirretrovirais/farmacologia , Aterosclerose , Brasil , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/virologia , Estudos de Coortes , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/virologia , Humanos , Hipercolesterolemia/sangue , Lipoproteínas HDL/sangue , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco
4.
Metab Syndr Relat Disord ; 8(6): 489-97, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20973693

RESUMO

BACKGROUND: The Framingham score is used in most studies on human immunodeficiency virus (HIV)-positive patients to estimate the risk for coronary heart disease; however, it may have some limitations for detecting risk among these individuals. OBJECTIVE: The aim of this study was to evaluate the agreement between the Framingham and Prospective Cardiovascular of Münster (PROCAM) scores among HIV-positive individuals and to investigate the factors associated with disagreement between the two scores. METHOD: A cross-sectional study was conducted in a population of HIV/acquired immunodeficiency syndrome (AIDS) patients attending the outpatient's clinics of two reference centers for HIV/AIDS in Pernambuco, Brazil. Agreement between the Framingham and PROCAM scores was evaluated using the kappa index. From this analysis, a variable called "disagreement between scores" was created, and univariate and multivariate analysis were performed to investigate the factors associated with this variable. RESULTS: The prevalence of low, moderate, and high risk were, respectively, 78.7%, 13.5%, and 7.8% by Framingham score and 88.5%, 4.3%, and 7.2% by PROCAM (kappa = 0.64, P ≤ 0.0001). Agreement in the subgroup with metabolic syndrome by the International Diabetes Federation (IDF) (kappa = 0.51, P ≤ 0.0001) and the National Cholesterol Education Program (NCEP) (kappa = 0.59, P ≤ 0.0001) criteria was moderate. The Framingham score identified greater proportion of women with moderate risk. Factors independently associated with disagreement were: smoking, sex, age, low-density lipoprotein cholesterol, diastolic blood pressure, and metabolic syndrome. CONCLUSION: There was a good agreement between the Framingham and PROCAM scores in HIV-positive patients, but a higher proportion of moderate-high risk was identified by the Framingham score. This disagreement should be evaluated in cohort studies to observe clinical outcomes over the course of time.


Assuntos
Doença das Coronárias/complicações , Doença das Coronárias/diagnóstico , Doença das Coronárias/epidemiologia , Soropositividade para HIV/complicações , Soropositividade para HIV/epidemiologia , Adulto , Algoritmos , Brasil/epidemiologia , Fenômenos Fisiológicos Cardiovasculares , Estudos de Coortes , Doença das Coronárias/fisiopatologia , Estudos Transversais , Feminino , Soropositividade para HIV/fisiopatologia , HIV-1/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Projetos de Pesquisa , Medição de Risco/métodos
5.
Arq Bras Endocrinol Metabol ; 54(2): 133-42, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20485901

RESUMO

There is a high prevalence of osteoporosis in HIV-infected patients. Initially described in HIV-positive men, studies have also demonstrated a high prevalence of osteoporosis in HIV-infected women. It would appear that antiretroviral therapy (ART) plays an important role in the pathogenesis of osteoporosis in HIV-infected patients, although little is known about its importance in relation to osteoporosis and fractures in HIV-positive women. The aim of this systematic review was to evaluate the frequency of bone loss, bone mineral density (BMD) and fractures in HIV-positive women taking ART or protease inhibitors (PI). After screening 597 citations from the databases of PubMed, EMBASE and Lilacs, five studies were selected for the review. A difference was demonstrated of over 3% in the BMD at the femoral neck of HIV-positive women taking PI/ART. No difference was registered in the BMD at the lumbar spine between users and non-users of PI/ART. The lack of studies has made it impossible to reach any conclusion regarding the occurrence of fractures.


Assuntos
Fármacos Anti-HIV/efeitos adversos , Densidade Óssea/efeitos dos fármacos , Infecções por HIV/tratamento farmacológico , Osteoporose/induzido quimicamente , Ensaios Clínicos como Assunto , Feminino , Humanos , Masculino , Metanálise como Assunto
6.
Arq. bras. endocrinol. metab ; Arq. bras. endocrinol. metab;54(2): 133-142, Mar. 2010. ilus, tab
Artigo em Inglês | LILACS | ID: lil-546255

RESUMO

There is a high prevalence of osteoporosis in HIV-infected patients. Initially described in HIV-positive men, studies have also demonstrated a high prevalence of osteoporosis in HIV-infected women. It would appear that antiretroviral therapy (ART) plays an important role in the pathogenesis of osteoporosis in HIV-infected patients, although little is known about its importance in relation to osteoporosis and fractures in HIV-positive women. The aim of this systematic review was to evaluate the frequency of bone loss, bone mineral density (BMD) and fractures in HIV-positive women taking ART or protease inhibitors (PI). After screening 597 citations from the databases of PubMed, EMBASE and Lilacs, five studies were selected for the review. A difference was demonstrated of over 3 percent in the BMD at the femoral neck of HIV-positive women taking PI/ART. No difference was registered in the BMD at the lumbar spine between users and non-users of PI/ART. The lack of studies has made it impossible to reach any conclusion regarding the occurrence of fractures.


A prevalência de osteoporose é elevada em indivíduos infectados pelo HIV. Inicialmente descrita em homens HIV-positivos, estudos demonstraram alta prevalência de osteoporose também em mulheres HIV-positivas. A terapia antirretroviral parece exercer papel importante na patogênese da osteoporose dos indivíduos com HIV. Pouco se sabe sobre sua importância para a osteoporose e fraturas nas mulheres HIV-positivas. Esta revisão objetivou avaliar a frequência de perda de massa óssea, densidade mineral óssea (DMO) e fraturas em mulheres HIV-positivas em uso de terapia antirretroviral (TARV) ou inibidores de protease (IP). Após busca nos bancos de dados PubMed, EMBASE e Lilacs, de 597 citações, cinco estudos permaneceram na revisão. Demonstrou-se haver uma diferença superior a 3 por cento na DMO no colo do fêmur de mulheres HIV-positivas em uso de IP/TARV. Não se evidenciou diferença na DMO da coluna lombar entre usuárias e não usuárias de IP/TARV. A escassez de estudos impossibilitou qualquer conclusão sobre a ocorrência de fraturas.


Assuntos
Humanos , Masculino , Feminino , Fármacos Anti-HIV/efeitos adversos , Densidade Óssea/efeitos dos fármacos , Infecções por HIV/tratamento farmacológico , Osteoporose/induzido quimicamente , Ensaios Clínicos como Assunto , Metanálise como Assunto
7.
Metab Syndr Relat Disord ; 8(3): 271-7, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20158442

RESUMO

BACKGROUND: Although human immunodeficiency virus (HIV)-associated lipodystrophy has been reported for more than a decade, there is still considerable uncertainty regarding the mechanisms involved in its pathogenesis. METHODS: A case-control study was performed that aimed to identify the risk factors for lipodystrophy in HIV/acquired immunodeficiency syndrome (AIDS) patients undergoing antiretroviral therapy in Pernambuco, Brazil. RESULTS: Between July and November, 2007, a total of 332 patients were enrolled in the study: 182 cases and 150 controls. The following factors were independently associated with lipodystrophy: Use of stavudine [odds ratio (OR), 4.0; 95% confidence interval (CI), 2.3-6.9], use of didanosine (OR, 1.8; 95% CI, 1.0-3.4), use of lopinavir/ritonavir for less than 3 years (OR, 0.5; 95% CI, 0.2-1.0) and use of nucleoside/nucleotide analogue reverse transcriptase inhibitors (NTRIs) for more than 3 years (OR, 2.9; 95% CI, 1.6-5.2). Other associated factors were: duration of antiretroviral therapy (OR, 4.3; 95% CI, 2.4-7.9) and duration of HIV infection (OR, 2.9; 95% CI, 1.8-4.7). There was no association with the use of protease inhibitor when it was adjusted for the use of NRTIs. CONCLUSION: In this study, factors related to antiretroviral therapy were the main risk factors for lipodystrophy, corroborating the literature, but the findings also point to the need for further exploration into some of these associations, especially with the use of didanosine and lopinavir/ritonavir, which are less frequently reported. Future studies with a larger number of patients and a prospective design could provide valuable information for understanding this disorder.


Assuntos
Fármacos Anti-HIV/efeitos adversos , Antirretrovirais/efeitos adversos , Infecções por HIV/tratamento farmacológico , Síndrome de Lipodistrofia Associada ao HIV/induzido quimicamente , Adulto , Brasil , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Feminino , Infecções por HIV/virologia , Síndrome de Lipodistrofia Associada ao HIV/virologia , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
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