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1.
Pathogens ; 12(8)2023 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-37623959

RESUMO

Medical complications during pregnancy have been frequently reported from Western Africa with a particular importance of infectious complications. Placental tissue can either become the target of infectious agents itself, such as, e.g., in the case of urogenital schistosomiasis, or be subjected to contamination with colonizing or infection-associated microorganisms of the cervix or the vagina during vaginal delivery. In the retrospective cross-sectional assessment presented here, the quantitative dimension of infection or colonization with selected resistant or pathogenic bacteria and parasites was regionally assessed. To do so, 274 collected placental tissues from Ivory Coastal and Ghanaian women were subjected to selective growth of resistant bacteria, as well as to molecular screening for beta-lactamase genes, Schistosoma spp. and selected bacterial causative agents of sexually transmitted infections (STI). Panton-Valentine-negative methicillin-resistant Staphylococcus aureus (MRSA) was grown from 1.8% of the tissue samples, comprising the spa types t008 and t688, as well as the newly detected ones, t12101 (n = 2) and t12102. While the culture-based recovery of resistant Enterobacterales and nonfermentative rod-shaped Gram-negative bacteria failed, molecular assessments confirmed beta-lactamase genes in 31.0% of the samples with multiple detections of up to four resistance genes per sample and blaCTX-M, blaIMP, blaGES, blaVIM, blaOXA-58-like, blaNDM, blaOXA-23-like, blaOXA-48-like and blaKPC occurring in descending order of frequency. The beta-lactamase genes blaOXA-40/24-like, blaNMC_A/IMI, blaBIC, blaSME, blaGIM and blaDIM were not detected. DNA of the urogenital schistosomiasis-associated Schistosoma haematobium complex was recorded in 18.6% of the samples, but only a single positive signal for S. mansoni with a high cycle-threshold value in real-time PCR was found. Of note, higher rates of schistosomiasis were observed in Ghana (54.9% vs. 10.3% in Ivory Coast) and Cesarean section was much more frequent in schistosomiasis patients (61.9% vs. 14.8% in women without Schistosoma spp. DNA in the placenta). Nucleic acid sequences of nonlymphogranuloma-venereum-associated Chlamydia trachomatis and of Neisseria gonorrhoeae were recorded in 1.1% and 1.9% of the samples, respectively, while molecular attempts to diagnose Treponema pallidum and Mycoplasma genitalium did not lead to positive results. Molecular detection of Schistosoma spp. or STI-associated pathogens was only exceptionally associated with multiple resistance gene detections in the same sample, suggesting epidemiological distinctness. In conclusion, the assessment confirmed considerable prevalence of urogenital schistosomiasis and resistant bacterial colonization, as well as a regionally expected abundance of STI-associated pathogens. Continuous screening offers seem advisable to minimize the risks for the pregnant women and their newborns.

2.
PLoS One ; 12(11): e0187267, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29107975

RESUMO

BACKGROUND: The vast majority of research on mental health has been undertaken in high income countries. This study aimed at investigating the long-term course of maternal depressive symptoms and its association with various mother- and child-related characteristics in two West African lower middle income countries with focus on the relationship with long-term anxiety symptoms. METHODS: In the Child Development Study, a prospective birth cohort study in Côte d'Ivoire and Ghana, the 9-item Patient Health Questionnaire (PHQ-9) was answered by N = 776 women 3 months antepartum, and 3, 12, and 24 months postpartum between April 2010 and March 2014. Growth mixture modeling was used to identify distinct trajectories of depressive symptoms. Several psychosocial, obstetric, and sociodemographic characteristics were assessed and multinomial regression analysis was performed to investigate the influence of these variables on the different depression trajectories. RESULTS: We found three distinct classes of depressive symptoms that were characterized by an asymptomatic trajectory (91.5%), by recurrent risk (4.3%) and by postnatal risk (4.3%). The longitudinal course of depressive symptoms was strongly associated with anxiety symptoms (χ2 = 258.54, df = 6, p < 0.001; φ = .577). Among other factors, higher levels of anxiety, new pregnancy 2 years after birth, economic stress, and family stress were associated with the risk classes. CONCLUSIONS: A substantial proportion of West African women in our sample developed unfavorable patterns of depressive symptoms during the vulnerable phase of pregnancy and early motherhood. Psychosocial factors, especially antepartum anxiety symptoms, played a decisive role in this process. Perceived economic hardship further exaggerated the mental health burden.


Assuntos
Depressão Pós-Parto/psicologia , Criança , Côte d'Ivoire , Feminino , Gana , Humanos , Gravidez , Inquéritos e Questionários
3.
Open Forum Infect Dis ; 3(1): ofw011, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26973849

RESUMO

Background. Antibiotic-associated diarrhea (AAD) and Clostridium difficile-associated diarrhea (CDAD) are common complications of antibiotic use. Data on the efficacy of probiotics to prevent AAD and CDAD are unclear. We aimed to evaluate the efficacy of Saccharomyces boulardii to prevent AAD and CDAD in hospitalized adult patients. Methods. We conducted a multicenter, phase III, double-masked, randomized, placebo-controlled trial in hospitalized patients who received systemic antibiotic treatment in 15 hospitals in Germany between July 2010 and October 2012. Participants received Perenterol forte 250 mg capsules or matching placebo twice per day within 24 hours of initiating antibiotic treatment, continued treatment for 7 days after antibiotic discontinuation, and were then observed for 6 weeks. Results. Two thousand four hundred forty-four patients were screened. The trial was stopped early for futility after inclusion of 477 participants. Two hundred forty-six patients aged 60.1 ± 16.5 years and 231 patients aged 56.5 ± 17.8 were randomized to the S boulardii group and the placebo group, respectively, with 21 and 19 AADs in the respective groups (P = .87). The hazard ratio of AAD in the S boulardii group compared with the placebo group was 1.02 (95% confidence interval, .55-1.90; P = .94). Clostridium difficile-associated diarrhea occurred in 0.8% of participants (4 of 477). Nine serious adverse events were recorded in the S boulardii group, and 3 serious adverse events were recorded in the placebo group. None were related to study participation. Conclusions. We found no evidence for an effect of S boulardii in preventing AAD or CDAD in a population of hospitalized patients without particular risk factors apart from systemic antibiotic treatment. ClinicalTrials.gov Identifier. NCT01143272.

4.
J Affect Disord ; 197: 125-33, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26991367

RESUMO

BACKGROUND: Little is known about the course of perinatal anxiety, particularly in low and middle income countries. This study aimed at examining trajectories of ante- and postpartum generalized anxiety symptoms in West-African women and their associations with mother and child characteristics. METHODS: 778 women from Côte d'Ivoire and Ghana were investigated between 04/2010 and 03/2014. Anxiety symptoms were measured using the seven-item Generalized Anxiety Disorder scale (GAD-7) at three months antepartum and three, 12 and 24 months postpartum. Growth mixture modeling was applied to identify latent trajectory classes of anxiety. Multinomial logistic regression was used to investigate the associations of psychosocial, sociodemographic, obstetric and clinical characteristics with different trajectories. RESULTS: Four distinct trajectories of anxiety were identified. The majority of women (79.8%) had consistent low anxiety symptoms, while 11.4% had elevated anxiety scores before and around childbirth that decreased gradually. 5.4% of women showed increasing anxiety symptoms over time. Few women (3.3%) had transient anxiety with elevated scores at three and 12 months postpartum. Risk factors for elevated anxiety levels around childbirth were antepartum depressive symptoms, higher levels of stress (economic, marital and social stress), lower child birth weight, and multiparity. Partner support was found to be protective. LIMITATIONS: Anxiety symptoms were assessed using a screening instrument and not through a formal diagnostic classification system. Some putative risk factors were not investigated, and some psychosocial factors were assessed retrospectively. CONCLUSION: The presence of different trajectories underline the importance of monitoring anxiety symptoms in pregnant women and in mothers with infants/toddlers.


Assuntos
Transtornos de Ansiedade/diagnóstico , Ansiedade/psicologia , Depressão Pós-Parto/diagnóstico , Mães/psicologia , Período Pós-Parto/psicologia , Gestantes/psicologia , Estresse Psicológico/psicologia , Adulto , Transtornos de Ansiedade/psicologia , Côte d'Ivoire , Depressão/diagnóstico , Depressão Pós-Parto/psicologia , Feminino , Gana , Humanos , Estudos Longitudinais , Gravidez , Fatores de Risco , Índice de Gravidade de Doença , Estresse Psicológico/etiologia
5.
J Affect Disord ; 187: 232-40, 2015 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-26343851

RESUMO

BACKGROUND: Major depression in antepartum women is a considerable health problem. This article aims at exploring the psychometric properties of the 9-item Patient Health Questionnaire (PHQ-9) in West African pregnant women. METHODS: In a cross-sectional survey, the PHQ-9 was administered to n=639 Ivorian and n=389 Ghanaian women in their last trimester of pregnancy (gestational age range: 28-40 weeks) in 2010-11. Statistical analysis applied methods from both classical test theory (CTT) and item response theory (IRT). RESULTS: Internal consistency was Cronbach׳s α=.65 in Côte d׳Ivoire and α=.68 in Ghana. Investigation of factorial validity by confirmatory factor analyses showed that unidimensionality of the PHQ-9 was sufficient. Rasch analyses resulted in excellent item infit and outfit measures. Yet, unidimensionality was questionable in residual principal component analyses. IRT analyses suggested that the response categories were not utilized as intended. Analysis of differential item functioning revealed interviewer-related item bias for several items in both samples. Item-person-fit was not ideal because the PHQ-9 items showed a low discriminability in the region of the latent trait where the majority of the women from the general population were located. Convergent validity was demonstrated by correlations between the PHQ-9 and two measures assessing anxiety and perceived disability. LIMITATIONS: Both samples were quite homogenous regarding residence in urban areas and gestational age. CONCLUSIONS: In our samples of African pregnant women, depression measured with the PHQ-9 does not appear as an entirely homogenous construct. However, the use of the sum score of the PHQ-9 is appropriate for depression screening purposes.


Assuntos
Ansiedade/diagnóstico , Depressão/diagnóstico , Programas de Rastreamento/métodos , Gestantes/psicologia , Inquéritos e Questionários/normas , Adulto , Côte d'Ivoire , Estudos Transversais , Análise Fatorial , Feminino , Gana , Humanos , Gravidez , Terceiro Trimestre da Gravidez/psicologia , Análise de Componente Principal , Psicometria , Reprodutibilidade dos Testes , Adulto Jovem
6.
BMC Psychiatry ; 14: 156, 2014 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-24884986

RESUMO

BACKGROUND: There are limited data on the parenting stress (PS) levels in sub-Saharan African mothers and on the association between ante- and postnatal depression and anxiety on PS. METHODS: A longitudinal birth cohort of 577 women from Ghana and Côte d'Ivoire was followed from the 3rd trimester in pregnancy to 2 years postpartum between 2010 and 2013. Depression and anxiety were assessed by the Patient Health Questionnaire depression module (PHQ-9) and the Generalized Anxiety Disorder (GAD-7) at baseline, 3 month, 12 month and 24 month postpartum. PS was measured using the Parenting Stress Index-Short Form (PSI-SF) at 3, 12 and 24 month. The mean total PS score and the subscale scores were compared among depressed vs. non-depressed and among anxious vs. non-anxious mothers at 3, 12 and 24 month postpartum. The proportions of clinical PS (PSI-SF raw score > 90) in depressed vs. non-depressed and anxious vs. non-anxious mothers were also compared. A generalized estimating equation (GEE) approach was used to estimate population-averaged associations between women's depression/anxiety and PS adjusting for age, child sex, women's anemia, education, occupation, spouse's education, and number of sick child visits. RESULTS: A total of 577, 531 and 264 women completed the PS assessment at 3 month, 12 month and 24 month postpartum across the two sites and the prevalences of clinical PS at each time point was 33.1%, 24.4% and 14.9% in Ghana and 30.2%, 33.5% and 22.6% in Côte d'Ivoire, respectively. At all three time points, the PS scores were significantly higher among depressed mothers vs. non-depressed mothers. In the multivariate regression analyses, antepartum and postpartum depression were consistently associated with PS after adjusting for other variables. CONCLUSIONS: Parenting stress is frequent and levels are high compared with previous studies from high-income countries. Antepartum and postpartum depression were both associated with PS, while antepartum and postpartum anxiety were not after adjusting for confounders. More quantitative and qualitative data are needed in sub-Saharan African populations to assess the burden of PS and understand associated mechanisms. Should our findings be replicated, it appears prudent to design and subsequently evaluate intervention strategies.


Assuntos
Transtornos de Ansiedade/epidemiologia , Depressão Pós-Parto/epidemiologia , Transtorno Depressivo/epidemiologia , Saúde Mental , Mães/psicologia , Poder Familiar/psicologia , Estresse Psicológico/epidemiologia , Adulto , Transtornos de Ansiedade/diagnóstico , Estudos de Coortes , Côte d'Ivoire/epidemiologia , Depressão Pós-Parto/diagnóstico , Transtorno Depressivo/diagnóstico , Feminino , Gana/epidemiologia , Humanos , Período Pós-Parto/psicologia , Gravidez , Prevalência , Estresse Psicológico/diagnóstico , Inquéritos e Questionários , Adulto Jovem
7.
PLoS One ; 8(11): e80711, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24260460

RESUMO

BACKGROUND: Evidence linking common mental disorders (CMD) in pregnant women to adverse birth outcomes is inconsistent, and studies often failed to control for pregnancy complications. This study aimed to explore the association between antenatal depression and anxiety symptoms and birth outcomes in a low-obstetric risk sample of mother/child dyads in Ghana and Côte d'Ivoire. METHODS: In 2010-2011, a prospective cohort of 1030 women in their third trimester in Ghana and Côte d'Ivoire was enrolled. Depression and anxiety were assessed in the third trimester using the Patient Health Questionnaire depression module and the 7-item Generalized Anxiety Disorder scale. 719 mother/child dyads were included in the analysis. We constructed multivariate regression models to estimate the association between CMD and low birth weight (LBW), and preterm birth (PTB) to control for potential confounders. RESULTS: The prevalence of depression and anxiety symptoms were 28.9% and 14.2% respectively. The mean birth weight was 3172.1g (SD 440.6) and the prevalence of LBW was 1.7%. The mean gestational age was 39.6 weeks and the proportion of PTB was 4%. Multivariate linear regression revealed no significant association between maternal depression (B=52.2, 95% CI -18.2 122.6, p=0.15) or anxiety (B=17.1, 95% CI -74.6 108.7, p=0.72) and birth weight. Yet, low socio-economic status, female sex of the child, and younger maternal age were associated with lower birth weight. Multivariate logistic regression suggested no significant association between maternal depression (OR: 2.1, 95% CI 0.8 5.6, p=0.15) or anxiety (OR: 1.8, 95% CI 0.6 5.5, p=0.29) with PTB. CONCLUSIONS: Our data suggests that depression and/or anxiety in the 3(rd) trimester of pregnancy are not independent predictors of adverse birth outcomes in low obstetric risk women. The role of pregnancy complications as confounders or effect modifiers in studies of maternal CMD and their impact on birth outcomes should be investigated.


Assuntos
Transtornos Mentais/epidemiologia , Complicações na Gravidez , Resultado da Gravidez/epidemiologia , Adulto , Ansiedade/epidemiologia , Côte d'Ivoire/epidemiologia , Depressão/epidemiologia , Feminino , Gana/epidemiologia , Humanos , Estudos Longitudinais , Gravidez , Terceiro Trimestre da Gravidez , Prevalência , Estudos Prospectivos , Fatores de Risco , Adulto Jovem
8.
PLoS One ; 7(10): e48396, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23110236

RESUMO

BACKGROUND: Common mental disorders, particularly unipolar depressive disorders, rank among the top 5 with respect to the global burden of disease. As a major public health concern, antepartum depression and anxiety not only affects the individual woman, but also her offspring. Data on the prevalence of common mental disorders in pregnant women in sub-Saharan Africa are scarce. We provide results from Ghana and Côte d'Ivoire. METHODS: We subsequently recruited and screened n = 1030 women in the third trimester of their pregnancy for depressed mood, general anxiety, and perceived disability using the Patient Health Questionnaire depression module (PHQ-9), the 7-item Anxiety Scale (GAD-7), and the World Health Organisation Disability Assessment Schedule II (WHO-DAS 2.0, 12-item version). In addition to estimates of means and prevalence, a hierarchical linear regression model was calculated to determine the influence of antepartum depression and anxiety on disability. RESULTS: In Ghana, 26.6% of women showed substantially depressed mood. In Côte d'Ivoire, this figure was even higher (32.9%). Clear indications for a generalized anxiety disorder were observed in 11.4% and 17.4% of pregnant women, respectively. Comorbidity of both conditions was common, affecting about 7.7% of Ghanaian and 12.6% of Ivorian participants. Pregnant women in both countries reported a high degree of disability regarding everyday activity limitations and participation restrictions. Controlled for country and age, depression and anxiety accounted for 33% of variance in the disability score. CONCLUSIONS: Antepartum depression and anxiety were highly prevalent in our sample and contributed substantially to perceived disability. These serious threats to health must be further investigated and more data are needed to comprehensively quantify the problem in sub-Saharan Africa.


Assuntos
Ansiedade/epidemiologia , Depressão/epidemiologia , Adolescente , Adulto , Distribuição por Idade , Côte d'Ivoire/epidemiologia , Transtorno Depressivo/epidemiologia , Feminino , Gana/epidemiologia , Humanos , Pessoa de Meia-Idade , Gravidez , Adulto Jovem
11.
Ann Hum Genet ; 74(4): 335-9, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20597904

RESUMO

Polymorphisms in the leptin gene (LEP) have been associated with leptin levels and obesity in some studies in adults though this link has scarcely been investigated in children. In our study, we examined the relationship of the LEP G-2548A polymorphism with leptin levels, anthropometric variables and body composition in a population-based sample of pubescent children. Our study included 880 healthy schoolchildren (419 males and 461 females), 12-16 years of age. Plasma leptin levels were determined by ELISA. The LEP polymorphism was determined by allelic discrimination TaqMan assay. Male carriers of the AA genotype had significantly lower plasma leptin levels than GA (p < 0.008) and GG (p < 0.001) carriers and significantly lower mean hip circumference (HC) values than GG carriers (p = 0.04). In girls, leptin levels were also lower in A-allele carriers than in GG carriers, and BMI and HC were significantly lower in AA carriers as compared with GG carriers. In addition, the frequency of the A allele was significantly lower (chi(2): 4.58, p = 0.032) in the OW-obese than in the NW group. In conclusion, the LEP G-2548A polymorphism is associated with variations in leptin levels, BMI and HC in Spanish pubertal children, and evidence suggests a link between the G allele and presence of overweight in girls.


Assuntos
Composição Corporal , Índice de Massa Corporal , Leptina/genética , Polimorfismo de Nucleotídeo Único , Adolescente , Criança , Feminino , Frequência do Gene , Predisposição Genética para Doença , Genótipo , Hispânico ou Latino/genética , Humanos , Masculino , Obesidade/genética , Circunferência da Cintura , Relação Cintura-Quadril
12.
Clin Chem Lab Med ; 48(5): 707-11, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20450333

RESUMO

BACKGROUND: Adipocytokines play an important role in controlling energy homeostasis, and in various metabolic processes related to obesity. The aim of this study was to describe serum leptin and adiponectin concentrations in a sample of pubertal Spanish children and to evaluate their association with anthropometric parameters and body composition. METHODS: The study included 833 pubertal boys and girls. Serum leptin and adiponectin concentrations were determined by ELISA. RESULTS: Leptin concentrations were significantly higher (p<0.0001) in obese or overweight (OW) children compared with children with normal weight (NW). Adiponectin was significantly lower (p<0.01) in obese or OW girls compared with girls of NW, although these findings were not the same for boys. Weight, body mass index (BMI), waist circumference (WC), hip circumference (HC), and waist to hip ratio were significantly correlated (p<0.01) with leptin concentrations in both genders. Correlation of leptin with fat mass and % fat mass was strong, particularly in boys. The association of adiponectin concentrations with anthropometric variables was weaker in both genders. No significant correlations were found between adiponectin concentrations and fat mass or % fat mass. CONCLUSIONS: In summary, our study showed that, in pubertal children, leptin is related to weight, BMI, WC and HC and correlates even more strongly with % fat mass. However, adiponectin was weakly related to anthropometric variables and was not correlated with body fat.


Assuntos
Adiponectina/sangue , Composição Corporal , Leptina/sangue , Adolescente , Distribuição da Gordura Corporal , Índice de Massa Corporal , Criança , Estudos Transversais , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Obesidade/sangue , Obesidade/etiologia , Relação Cintura-Quadril
13.
J Nutr Biochem ; 21(10): 948-53, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19954956

RESUMO

The effects of drinking sodium-bicarbonated mineral water on cardiovascular risk in young men and women with moderate cardiovascular risk were studied. Eighteen young volunteers (total cholesterol levels >5.2 mmol/L) without any disease participated. The study consisted of two 8-week intervention periods. Subjects consumed, as supplement to their usual diet, 1 L/day control low mineral water, followed by 1 L/day bicarbonated mineral water (48 mmol/L sodium, 35 mmol/L bicarbonate and 17 mmol/L chloride). Determinations were performed at the end of the control water period and on Weeks 4 and 8 of the bicarbonated water period. Body weight, body mass index (BMI), blood pressure, dietary intake, total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, apolipoprotein (Apo) A-I, Apo B, triacylgycerols, glucose, insulin, adiponectin, high-sensitivity C-reactive protein (hs-CRP), soluble adhesion molecules [soluble intercellular adhesion molecule (sICAM) and soluble vascular adhesion molecule (sVCAM)], sodium and chloride urinary excretion, and urine pH were measured. Dietary intake, body weight and BMI showed no significant variations. Systolic blood pressure decreased significantly after 4 weeks of bicarbonated water consumption, without significant differences between Weeks 4 and 8. After bicarbonated water consumption, significant reductions in total cholesterol (by 6.3%; P=.012), LDL cholesterol (by 10%; P=.001), total/HDL cholesterol (P=.004), LDL/HDL cholesterol (P=.001) and Apo B (P=.017) were observed. Serum triacylglycerol, Apo A-I, sICAM-1, sVCAM-1 and hs-CRP levels did not change. Serum glucose values tended to decrease during the bicarbonated water intervention (P=.056), but insulin levels did not vary. This sodium-bicarbonated mineral water improves lipid profile in moderately hypercholesterolemic young men and women and could therefore be applied in dietary interventions to reduce cardiovascular risk.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Hipercolesterolemia/complicações , Águas Minerais , Bicarbonato de Sódio , Adulto , Doenças Cardiovasculares/etiologia , Colesterol/sangue , Colesterol/classificação , Feminino , Humanos , Masculino , Comportamento de Redução do Risco
14.
Pediatr Diabetes ; 11(3): 188-94, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-19656319

RESUMO

BACKGROUND: Low levels of sex hormone-binding globulin (SHBG) are associated with obesity, insulin resistance, and metabolic syndrome (MS) in men and women, and it has been suggested that SHBG could be a useful marker for MS risk. OBJECTIVE: The aim of this study was to analyze the relationship of SHBG levels with MS and its components in Spanish adolescents. METHODS: The sample population of this cross-sectional study was comprised of 386 male and 429 female adolescents, aged 12-16 yr. Anthropometric parameters and blood pressure (BP) were measured. Total cholesterol, high-density lipoprotein (HDL)-cholesterol, insulin, glucose, and SHBG levels were determined. The pediatric International Diabetes Federation (IDF) definition was used to classify adolescents for MS. RESULTS: SHBG levels were lower in adolescents with MS or with some MS features. More than 90% of the abdominally obese adolescents were in the lowest and medium SHBG tertiles. In girls, BP was significantly higher in the lowest SHBG tertile than in the two others, whereas in boys BP levels were significantly higher in the lowest and medium tertiles than in the highest one. Insulin levels and homeostasis model assessment (HOMA) index were also significantly higher in the lowest SHBG tertile than in the two others. CONCLUSIONS: The associations of SHBG with MS and its components, such as abdominal obesity, high BP or insulin levels, are already present in normal adolescents. This may suggest the possibility of using SHBG levels as a biomarker for MS risk in adolescents as well as adults.


Assuntos
Síndrome Metabólica/sangue , Síndrome Metabólica/etiologia , Globulina de Ligação a Hormônio Sexual/análise , Adolescente , Adulto , Glicemia/análise , Pressão Sanguínea/fisiologia , Criança , Colesterol/sangue , Estudos Transversais , Feminino , Humanos , Insulina/sangue , Resistência à Insulina/fisiologia , Masculino , Síndrome Metabólica/metabolismo , Síndrome Metabólica/fisiopatologia , Fatores de Risco , Globulina de Ligação a Hormônio Sexual/metabolismo , Espanha
15.
Exp Biol Med (Maywood) ; 234(7): 744-9, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19429860

RESUMO

Polymorphisms in the hepatic lipase gene have been associated with variability in plasma HDL-C concentrations, but contradictory results have been reported regarding the effect of diet on this association in adults. In our study, we examined whether dietary fat intake modified the association between lipid levels and the C-514T polymorphism in the hepatic lipase gene (LIPC C-514T) in prepubescent children. The LIPC C-514T polymorphism was determined by PCR and restriction analysis in 1260 healthy school children, aged 6-8. Information on the children's nutrient intake was obtained by means of a validated food frequency questionnaire. We found that regardless of gender, carriers of the minor allele had significantly higher apo A-I levels compared to noncarrier subjects. The effect of the polymorphism, however, was modified by dietary fat intake. In boys, the presence of the LIPC C-514T polymorphism was associated with significantly higher HDL-C among children within the highest tertiles of total, saturated, monounsaturated, or polyunsaturated fat intake. Apo A-I levels were significantly higher in carriers of the LIPC C-514T polymorphism, but only among boys who consumed high total as well as monounsaturated fat and among girls who consumed high total, saturated, monounsaturated, and polyunsaturated fat. Our data show that dietary fat intake modifies the effect of the LIPC C-514T polymorphism on plasma HDL-C and apo A-I levels in prepubescent children, being associated with higher levels of HDL-C and apo A-I only when fat intake is high. This significant gene-nutrient interaction could help to explain inter-individual variations in the plasma lipid response to fat intake.


Assuntos
HDL-Colesterol/sangue , Gorduras na Dieta/farmacologia , Lipase/genética , Fígado/enzimologia , Polimorfismo Genético/genética , Alelos , Apolipoproteína A-I/sangue , Criança , Feminino , Inquéritos Epidemiológicos , Humanos , Lipase/metabolismo , Masculino , Espanha
16.
Clin Chim Acta ; 403(1-2): 203-6, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19285487

RESUMO

INTRODUCTION: Genetic determinants have been related to variation of high-density lipoprotein cholesterol (HDL-C) levels, but the extension of this association remains controversial. In our study, we analyzed the contribution of several polymorphisms on HDL-C-related genes to variation of plasma HDL-C in prepubertal children. METHODS: We studied 1269 (641 males and 628 females) 6-8 years old healthy children, who participated in a cross-sectional study examining cardiovascular risk factors in Spain. Common genetic variants in the apolipoprotein AI, apolipoprotein AII, cholesteryl ester transfer protein (CETP), hepatic lipase, ATP-binding cassette transporter A1, and paraoxonase genes were determined by PCR. RESULTS: CETP TaqI B2 carrier girls had significantly higher HDL-C levels than B1B1 girls. B2B2 boys had significantly higher (p<0.001) HDL-C than B1B1and B1B2 boys. In linear regression analysis, CETP TaqIB appears as the main predictor of HDL-C plasma levels, accounting for 4.5% and 1.8% of HDL-C variation in girls and boys respectively. CONCLUSIONS: Our data showed that among the studied polymorphisms only the CETP TaqIB polymorphism contributes to the variation in HDL-C levels in prepubertal children, particularly in girls, but overall these polymorphisms explain a small part of the variation of HDL-C plasma levels at this age.


Assuntos
HDL-Colesterol/sangue , Polimorfismo Genético , Puberdade/sangue , Puberdade/genética , Criança , Feminino , Frequência do Gene , Genótipo , Humanos , Masculino
17.
Br J Nutr ; 102(4): 546-53, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19210857

RESUMO

Beneficial effects of n-3 fatty acids on a variety of physiological functions have been reported, but information related to the effects of oily fish consumed within a varied diet on glucose metabolism and diabetes risk is scarce. The objective of the study was to compare the effects of a diet rich in oily fish to those of a diet rich in red meat on lipid profile, oxidative status, glucose metabolism and insulin sensitivity in young, iron-deficient women. The study was designed attending the CONSORT statement guidelines. It was a randomised crossover dietary intervention study with two 8-week periods. Two diets were designed differing only in their oily fish or red meat content (four portions per week). Twenty-five young iron-deficient women with normal lipid, glucose and insulin levels participated in the assay. Lipid profile (total, LDL- and HDL-cholesterol, TAG), fasting glucose, fasting insulin, and oxidation (lipoperoxides) and inflammation (soluble intercellular adhesion molecule-1 and soluble vascular cell adhesion molecule-1) biomarkers were analysed. Insulin sensitivity was assessed by the Homeostasis Model Assessment (HOMA) and Quantitative Insulin Sensitivity Check Index (QUICKI). Insulin levels significantly decreased and insulin sensitivity significantly increased with the oily fish diet. HDL-cholesterol significantly increased with the oily fish diet. Other parameters did not significantly differ between diets. An increase in oily fish consumption increases insulin sensitivity in young iron-deficient women. This outcome should be considered when giving dietary advice to this population.


Assuntos
Anemia Ferropriva/dietoterapia , Gorduras Insaturadas na Dieta/administração & dosagem , Peixes , Adolescente , Adulto , Análise de Variância , Anemia Ferropriva/metabolismo , Animais , Colesterol/sangue , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Estudos Cross-Over , Ácidos Graxos Ômega-3/administração & dosagem , Ácidos Graxos Ômega-6/administração & dosagem , Feminino , Humanos , Insulina/sangue , Resistência à Insulina , Carne , Ácido Oleico/administração & dosagem , Triglicerídeos/sangue , Adulto Jovem
18.
Clin Biochem ; 41(7-8): 621-4, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18237556

RESUMO

OBJECTIVE: To determine hormone levels in a population-based sample of pubertal children and evaluate their association with anthropometric parameters. METHODS: Sex steroid levels were assessed using RIA and IRMA. RESULTS: In boys, changes in weight and height across the period were accompanied by changes in testosterone and SHBG. In girls, anthropometric variables did not change and were not correlated with estradiol. CONCLUSIONS: We observed an association between hormone levels and anthropometric changes when active growth associated with puberty was taking place.


Assuntos
Antropometria/métodos , Composição Corporal/fisiologia , Hormônios Esteroides Gonadais/sangue , Caracteres Sexuais , Adolescente , Estatura/fisiologia , Índice de Massa Corporal , Peso Corporal/fisiologia , Criança , Estradiol/sangue , Feminino , Seguimentos , Humanos , Masculino , Espanha/epidemiologia , Testosterona/sangue
19.
Int J Food Sci Nutr ; 59(4): 347-55, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17886090

RESUMO

UNLABELLED: AIM To assess in healthy postmenopausal women the influence of consuming sodium-bicarbonated mineral water on postprandial evolution of serum aldosterone and urinary electrolyte excretion. METHODS: Eighteen postmenopausal women consumed 500 ml of two sodium-bicarbonated mineral waters (sodium-bicarbonated mineral water 1 and sodium-bicarbonated mineral water 2) and a low-mineral water with a standard meal. Postprandial blood samples were taken at 60, 120, 240, 360 and 420 min and aldosterone concentrations were measured. Postprandial urinary minerals were determined. RESULTS: Urinary and total mineral excretion and urinary mineral concentrations did not differ except for sodium concentration, which was significantly higher with sodium-bicarbonated mineral water 1 than with low-mineral water (P = 0.005). There was a time effect (P = 0.003) on the aldosterone concentration. At 120 min, aldosterone concentrations were lower with sodium-bicarbonated mineral water 1 (P = 0.021) and sodium-bicarbonated mineral water 2 (P = 0.030) compared with low-mineral water. CONCLUSION: Drinking a sodium-rich bicarbonated mineral water with a meal increases urinary sodium concentration excretion without changes in the excretion of potassium and bone minerals.


Assuntos
Aldosterona/sangue , Águas Minerais , Minerais/urina , Pós-Menopausa/metabolismo , Bicarbonato de Sódio/administração & dosagem , Análise de Variância , Biomarcadores/urina , Cálcio/urina , Cloretos/urina , Estudos Cross-Over , Ingestão de Alimentos , Feminino , Humanos , Magnésio/urina , Pessoa de Meia-Idade , Fósforo/urina , Período Pós-Prandial , Potássio/urina , Sódio/urina
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