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1.
Thyroid Res ; 16(1): 23, 2023 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-37424010

RESUMO

BACKGROUND: Thyroid cancer (TC) patients are understudied but appear to be at risk for poor physical and psychosocial outcomes. Knowledge of the course and determinants of these deteriorated outcomes is lacking. Furthermore, little is known about mediating biological mechanisms. OBJECTIVES: The WaTCh-study aims to; 1. Examine the course of physical and psychosocial outcomes. 2. Examine the association of demographic, environmental, clinical, physiological, and personality characteristics to those outcomes. In other words, who is at risk? 3. Reveal the association of mediating biological mechanisms (inflammation, kynurenine pathway) with poor physical and psychological outcomes. In other words, why is a person at risk? DESIGN AND METHODS: Newly diagnosed TC patients from 13 Dutch hospitals will be invited. Data collection will take place before treatment, and at 6, 12 and 24 months after diagnosis. Sociodemographic and clinical information is available from the Netherlands Cancer Registry. Patients fill-out validated questionnaires at each time-point to assess quality of life, TC-specific symptoms, physical activity, anxiety, depression, health care use, and employment. Patients are asked to donate blood three times to assess inflammation and kynurenine pathway. Optionally, at each occasion, patients can use a weighing scale with bioelectrical impedance analysis (BIA) system to assess body composition; can register food intake using an online food diary; and can wear an activity tracker to assess physical activity and sleep duration/quality. Representative Dutch normative data on the studied physical and psychosocial outcomes is already available. IMPACT: WaTCh will reveal the course of physical and psychosocial outcomes among TC patients over time and answers the question who is at risk for poor outcomes, and why. This knowledge can be used to provide personalized information, to improve screening, to develop and provide tailored treatment strategies and supportive care, to optimize outcomes, and ultimately increase the number of TC survivors that live in good health.

2.
Pathobiology ; 90(6): 409-416, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37315545

RESUMO

INTRODUCTION: Diabetes mellitus (DM), especially type 2, is strongly associated with non-alcoholic fatty liver disease (NAFLD). Recent studies indicate that particularly in DM patients, "simple" liver steatosis can progress into more severe disease. However, little is known about putative hepatic histopathological changes in DM patients without NAFLD. In this study, we therefore analysed fat content and inflammatory cell infiltration in the livers of deceased DM and non-DM patients without NAFLD, and analysed age/sex effects hereon. METHODS: Hepatic fat and inflammatory cells were studied through (immuno)histochemical analysis in liver tissue from 24 DM patients and 66 non-diabetic controls, without histopathological characteristics of NAFLD. RESULTS: We observed a 2-fold increase in fat percentage/mm2 and a near 5-fold increase in the number of fat-containing cells/mm2 in DM patients compared to non-diabetic controls. Fat content was significantly higher in patients with type 2 DM, but not type 1 DM, compared to non-diabetic controls, while the number of CD68+ cells/mm2 was significantly elevated in both DM groups. CONCLUSION: Hepatic fat and number of macrophages are increased in patients with DM without NAFLD, which may reflect a higher risk on development of steatosis and steatohepatitis.


Assuntos
Diabetes Mellitus Tipo 2 , Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/metabolismo , Hepatopatia Gordurosa não Alcoólica/patologia , Fígado/patologia , Diabetes Mellitus Tipo 2/complicações , Macrófagos/patologia
3.
Chest ; 164(3): 596-605, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37116748

RESUMO

BACKGROUND: Despite the low rate of bacterial coinfection, antibiotics are very commonly prescribed in hospitalized patients with COVID-19. RESEARCH QUESTION: Does the use of a procalcitonin (PCT)-guided antibiotic protocol safely reduce the use of antibiotics in patients with a COVID-19 infection? STUDY DESIGN AND METHODS: In this multicenter cohort, three groups of patients with COVID-19 were compared in terms of antibiotic consumption, namely one group treated based on a PCT-algorithm in one hospital (n = 216) and two control groups, consisting of patients from the same hospital (n = 57) and of patients from three similar hospitals (n = 486) without PCT measurements during the same period. The primary end point was antibiotic prescription in the first week of admission. RESULTS: Antibiotic prescription during the first 7 days was 26.8% in the PCT group, 43.9% in the non-PCT group in the same hospital, and 44.7% in the non-PCT group in other hospitals. Patients in the PCT group had lower odds of receiving antibiotics in the first 7 days of admission (OR, 0.33; 95% CI, 0.16-0.66 compared with the same hospital; OR, 0.42; 95% CI, 0.28-0.62 compared with the other hospitals). The proportion of patients receiving antibiotic prescription during the total admission was 35.2%, 43.9%, and 54.5%, respectively. The PCT group had lower odds of receiving antibiotics during the total admission only when compared with the other hospitals (OR, 0.23; 95% CI, 0.08-0.63). There were no significant differences in other secondary end points, except for readmission in the PCT group vs the other hospitals group. INTERPRETATION: PCT-guided antibiotic prescription reduces antibiotic prescription rates in hospitalized patients with COVID-19, without major safety concerns.


Assuntos
Antibacterianos , Infecções Bacterianas , COVID-19 , Coinfecção , Pró-Calcitonina , Pró-Calcitonina/sangue , Prescrições de Medicamentos/estatística & dados numéricos , Antibacterianos/uso terapêutico , COVID-19/complicações , Humanos , Estudos de Coortes , Coinfecção/tratamento farmacológico , Infecções Bacterianas/complicações , Infecções Bacterianas/tratamento farmacológico , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Protocolos Clínicos
5.
Front Endocrinol (Lausanne) ; 12: 747732, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34970220

RESUMO

Objective: To evaluate the association between overweight and obesity on the clinical course and outcomes in patients hospitalized with COVID-19. Design: Retrospective, observational cohort study. Methods: We performed a multicenter, retrospective, observational cohort study of hospitalized COVID-19 patients to evaluate the associations between overweight and obesity on the clinical course and outcomes. Results: Out of 1634 hospitalized COVID-19 patients, 473 (28.9%) had normal weight, 669 (40.9%) were overweight, and 492 (30.1%) were obese. Patients who were overweight or had obesity were younger, and there were more women in the obese group. Normal-weight patients more often had pre-existing conditions such as malignancy, or were organ recipients. During admission, patients who were overweight or had obesity had an increased probability of acute respiratory distress syndrome [OR 1.70 (1.26-2.30) and 1.40 (1.01-1.96)], respectively and acute kidney failure [OR 2.29 (1.28-3.76) and 1.92 (1.06-3.48)], respectively. Length of hospital stay was similar between groups. The overall in-hospital mortality rate was 27.7%, and multivariate logistic regression analyses showed that overweight and obesity were not associated with increased mortality compared to normal-weight patients. Conclusion: In this study, overweight and obesity were associated with acute respiratory distress syndrome and acute kidney injury, but not with in-hospital mortality nor length of hospital stay.


Assuntos
Injúria Renal Aguda/complicações , COVID-19/mortalidade , Mortalidade Hospitalar , Hospitalização , Obesidade/complicações , Síndrome do Desconforto Respiratório/complicações , Idoso , Feminino , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Alta do Paciente , Respiração Artificial , Estudos Retrospectivos , Resultado do Tratamento
6.
Open Heart ; 8(2)2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34819349

RESUMO

BACKGROUND: Myocardial infarction (MI) is associated with mental health disorders, in which neuroinflammation and cerebral microvascular dysfunction may play a role. Previously, we have shown that the proinflammatory factors Nε-(carboxymethyl)lysine (CML) and NADPH oxidase 2 (NOX2) are increased in the human infarcted heart microvasculature. The aim of this study was to analyse the presence of CML and NOX2 in the cerebral microvasculature of patients with MI. METHODS: Brain tissue was obtained at autopsy from 24 patients with MI and nine control patients. According to their infarct age, patients with MI were divided into three groups: 3-6 hours old (phase I), 6 hours-5 days old (phase II) and 5-14 days old (phase III). CML and NOX2 in the microvasculature were studied through immunohistochemical analysis. RESULTS: We observed a 2.5-fold increase in cerebral microvascular CML in patients with phase II and phase III MI (phase II: 21.39±7.91, p=0.004; phase III: 24.21±10.37, p=0.0007) compared with non-MI controls (8.55±2.98). NOX2 was increased in microvessels in patients with phase II MI (p=0.002) and phase III MI (p=0.04) compared with controls. No correlation was found between CML and NOX2 (r=0.58, p=0.13). CONCLUSIONS: MI coincides with an increased presence of CML and NOX2 in the brain microvasculature. These data point to proinflammatory alterations in the brain microvasculature that may underlie MI-associated mental health disorders.


Assuntos
Artérias Cerebrais/enzimologia , Lisina/análogos & derivados , Microvasos/enzimologia , Infarto do Miocárdio/enzimologia , NADPH Oxidase 2/biossíntese , Doenças Neuroinflamatórias/enzimologia , Idoso , Biomarcadores/metabolismo , Artérias Cerebrais/patologia , Feminino , Humanos , Imuno-Histoquímica , Lisina/biossíntese , Masculino , Microvasos/patologia , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Infarto do Miocárdio/patologia , Doenças Neuroinflamatórias/complicações , Doenças Neuroinflamatórias/patologia
7.
PLoS One ; 16(4): e0249920, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33857224

RESUMO

OBJECTIVE: To establish whether one can build a mortality prediction model for COVID-19 patients based solely on demographics and comorbidity data that outperforms age alone. Such a model could be a precursor to implementing smart lockdowns and vaccine distribution strategies. METHODS: The training cohort comprised 2337 COVID-19 inpatients from nine hospitals in The Netherlands. The clinical outcome was death within 21 days of being discharged. The features were derived from electronic health records collected during admission. Three feature selection methods were used: LASSO, univariate using a novel metric, and pairwise (age being half of each pair). 478 patients from Belgium were used to test the model. All modeling attempts were compared against an age-only model. RESULTS: In the training cohort, the mortality group's median age was 77 years (interquartile range = 70-83), higher than the non-mortality group (median = 65, IQR = 55-75). The incidence of former/active smokers, male gender, hypertension, diabetes, dementia, cancer, chronic obstructive pulmonary disease, chronic cardiac disease, chronic neurological disease, and chronic kidney disease was higher in the mortality group. All stated differences were statistically significant after Bonferroni correction. LASSO selected eight features, novel univariate chose five, and pairwise chose none. No model was able to surpass an age-only model in the external validation set, where age had an AUC of 0.85 and a balanced accuracy of 0.77. CONCLUSION: When applied to an external validation set, we found that an age-only mortality model outperformed all modeling attempts (curated on www.covid19risk.ai) using three feature selection methods on 22 demographic and comorbid features.


Assuntos
COVID-19/mortalidade , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Bélgica/epidemiologia , COVID-19/diagnóstico , COVID-19/epidemiologia , Estudos de Coortes , Controle de Doenças Transmissíveis , Comorbidade , Registros Eletrônicos de Saúde , Feminino , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos/epidemiologia , Prognóstico , Medição de Risco , Fatores de Risco , SARS-CoV-2/isolamento & purificação
8.
Eur J Endocrinol ; 183(5): 529-536, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33071222

RESUMO

OBJECTIVE: Transgender individuals sometimes report a lack of physical change during hormone treatment, such as alterations in muscle tone or fat distribution. Identifying characteristics of this subgroup could be a step toward individualizing hormone therapy in transgender individuals. Therefore, we study the variation of changes in body composition and characteristics associated with a lack of change. DESIGN AND METHODS: Body composition measures were recorded in 323 transmen and 288 transwomen at every visit from the start of hormone therapy to a maximum of 24 months follow-up. Absence of change was defined as transmen with a decrease in lean body mass or transwomen with a decrease in fat percentage. RESULTS: A lack of change at 24 months was observed in 19 of 94 (20.2%) transmen and in 9 of 96 (9.4%) transwomen. The risk of not achieving change in body composition was related to lower testosterone levels and less suppression of LH in transmen (OR: 0.67, 95% CI: 0.48-0.94 per SD increase in testosterone and OR: 1.36, 95% CI: 1.01-1.83 per SD increase in LH). CONCLUSIONS: There is a large variation in body composition changes during hormone therapy, with a substantial proportion of individuals with no measurable effects. In transmen, serum testosterone and LH were associated with a lack of change, but serum hormone levels were not associated with body composition changes in transwomen. The results provide a rationale for individualizing hormone therapy in transmen, by considering individual effects rather than solely relying on a standardized dosage of hormone therapy.


Assuntos
Antagonistas de Androgênios/uso terapêutico , Androgênios/uso terapêutico , Composição Corporal , Estradiol/uso terapêutico , Estrogênios/uso terapêutico , Testosterona/uso terapêutico , Pessoas Transgênero , Adulto , Distribuição da Gordura Corporal , Acetato de Ciproterona/uso terapêutico , Relação Dose-Resposta a Droga , Impedância Elétrica , Estradiol/sangue , Feminino , Humanos , Hormônio Luteinizante/sangue , Masculino , Medicina de Precisão , Procedimentos de Readequação Sexual/métodos , Testosterona/análogos & derivados , Testosterona/sangue , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
9.
Expert Opin Drug Saf ; 19(12): 1539-1548, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33089723

RESUMO

INTRODUCTION: Growth hormone (GH) deficiency (GHD) in adults is characterized by abnormal body composition, unfavorable cardiovascular risk factors, and poor quality of life. The diagnosis is made within appropriate clinical settings and according to established guidelines. Numerous studies have shown that GH treatment improves body composition, cardiovascular risk factors, physical capacity, and quality of life while issues on safety, in particular long-term safety, remain. AREAS COVERED: Short- and long-term safety of GH replacement in adults with GHD. EXPERT OPINION: Adults with GHD are an inhomogeneous group of patients and GH replacement requires individual considerations. Most adverse effects are mild and transient and related to fluid retention and GH dose. In patients without comorbidities long-term GH treatment is safe and development of diabetes, cardiovascular disease, or tumors are not increased. Furthermore, mortality is not increased. Patients with risk factors should be identified before GH treatment is initiated and an optimal balance between benefit and risk established. Studies with sufficient duration and power to identify the development of cardiovascular diseases and cancers are still awaited. Effective management of comorbidities can be expected to decrease morbidity and mortality and improve quality of life. Studies with long-acting GH formulations are ongoing and available data indicate similar effects and short-time safety.


Assuntos
Terapia de Reposição Hormonal/efeitos adversos , Hormônio do Crescimento Humano/efeitos adversos , Adulto , Composição Corporal , Terapia de Reposição Hormonal/métodos , Hormônio do Crescimento Humano/administração & dosagem , Hormônio do Crescimento Humano/deficiência , Humanos , Qualidade de Vida , Proteínas Recombinantes , Fatores de Risco , Fatores de Tempo
10.
Ther Adv Endocrinol Metab ; 11: 2042018820943377, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32973992

RESUMO

BACKGROUND: To assess the safety (particularly the occurrence of malignancies) of growth hormone (GH) replacement (Omnitrope®) in adults with GH deficiency, using data from the ongoing PATRO Adults post-marketing surveillance study. METHODS: PATRO Adults is being conducted in hospitals and specialized endocrinology clinics across Europe. All enrolled patients who receive ⩾1 dose of Omnitrope® are included in the safety population. Malignancies are listed as adverse events under the MedDRA System Organ Class 'neoplasms, benign, malignant and unspecified (including cysts and polyps)'. RESULTS: As of July 2018, 1293 patients had been enrolled in the study and 983 (76.0%) remained active in the study. Approximately half [n = 637 (49.3%)] of the patients were GH treatment-naïve on study entry. The majority of enrolled patients had multiple pituitary hormone deficiency (n = 1128, 87.2%). A total of 41 on-study malignancies were reported in 33 patients (2.6%; incidence rate 7.94 per 1000 patient-years). The most common cancers were basal cell carcinoma (n = 13), prostate (n = 6), breast, kidney and malignant melanoma (each n = 3). Treatment with Omnitrope® was discontinued following diagnosis of malignancy in 16 patients. The tumors occurred after a mean of 79.4 months of recombinant hormone GH (rhGH) treatment overall. CONCLUSION: Based on this snapshot of data from PATRO Adults, Omnitrope® treatment is tolerated in adult patients with GH deficiency in a real-life clinical practice setting. Our results do not generally support a carcinogenic effect of rhGH in adults with GH deficiency, although an increased risk of second new malignancies in patients with previous cancer cannot be excluded based on the current dataset.

11.
BMJ Open ; 10(8): e038250, 2020 08 13.
Artigo em Inglês | MEDLINE | ID: mdl-32792446

RESUMO

INTRODUCTION: At present, there is no approved medical treatment option for patients with non-functioning pituitary adenoma. A number of open-label studies suggest that treatment with somatostatin analogues may prevent tumour progression. In vivo somatostatin receptor imaging using 68Ga-DOTATATE PET (PET, positron emission tomography) could help in preselecting patients potentially responsive to treatment. Our aim is to investigate the effect of the somatostatin analogue lanreotide as compared with placebo on tumour size in patients with a 68Ga-DOTATATE PET-positive non-functioning pituitary macroadenoma (NFMA). METHODS AND ANALYSIS: The GALANT study is a multicentre, randomised, double-blind, placebo-controlled trial in adult patients with a suprasellar extending NFMA. Included patients undergo a 68Ga-DOTATATE PET/CT of the head and tracer uptake is assessed after coregistration with pituitary MRI. Forty-four patients with a 68Ga-DOTATATE PET-positive NFMA are randomised in a 1:1 ratio between lanreotide 120 mg or placebo, both administered as subcutaneous injections every 28 days for 72 weeks. The primary outcome is the change in cranio-caudal tumour diameter on pituitary MRI after treatment. Secondary outcomes are change in tumour volume, time to tumour progression, change in quality of life and number of adverse events. Final results are expected in the second half of 2021. ETHICS AND DISSEMINATION: The study protocol has been approved by the Medical Research Ethics Committee of the Academic Medical Centre (AMC) of the Amsterdam University Medical Centres and by the Dutch competent authority. It is an investigator-initiated study with financial support by Ipsen Farmaceutica BV. The AMC, as sponsor, remains owner of all data. Results will be submitted for publication in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: NL5136 (Netherlands Trial Register); pre-recruitment.


Assuntos
Neoplasias Hipofisárias , Adulto , Radioisótopos de Gálio , Humanos , Estudos Multicêntricos como Assunto , Países Baixos , Neoplasias Hipofisárias/diagnóstico por imagem , Neoplasias Hipofisárias/tratamento farmacológico , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Tomografia por Emissão de Pósitrons , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto
12.
Eur J Hybrid Imaging ; 4(1): 4, 2020 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-34191241

RESUMO

PURPOSE: Clinically non-functioning pituitary macroadenomas (NFMA) have been reported to express somatostatin receptors (SSTR), but results are inconsistent across different studies. This may be related to limited sensitivity and specificity of techniques used to date, i.e. immunohistochemistry in surgical specimens and 111In-DTPA-octreotide scintigraphy in vivo. The aim of this study was to assess SSTR expression in NFMA in vivo using 68Ga-DOTATATE PET, which offers superior sensitivity and spatial resolution as compared with planar scintigraphy or SPECT. METHODS: Thirty-seven patients diagnosed with NFMA underwent 68Ga-DOTATATE PET/CT of the head in the framework of a randomised controlled trial assessing the effect of the somatostatin analogue lanreotide on NFMA size. Individual co-registered T1-weighted pituitary MRIs were used to assess 68Ga-DOTATATE uptake (SUVmean) in the adenoma. An SUVmean of > 2 was considered positive. RESULTS: 68Ga-DOTATATE uptake was positive in 34/37 patients (92%), with SUVmean of positive adenomas ranging from 2.1 to 12.4 (mean ± SD 5.8 ± 2.6). CONCLUSIONS: This is the first report of 68Ga-DOTATATE PET performed in NFMA patients, demonstrating in vivo SSTR expression in the vast majority of cases. The high positivity rate when compared with results obtained with 111In-DTPA-octreotide scintigraphy probably reflects the superior sensitivity of PET imaging. TRIAL REGISTRATION: Netherlands Trial Register, NL5136, registered on 18 August 2015; EudraCT, 2015-001234-22, registered on 10 March 2015, https://eudract.ema.europa.eu/.

13.
J Clin Endocrinol Metab ; 104(6): 1937-1947, 2019 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-30602016

RESUMO

CONTEXT: The impact of gender-affirming hormone therapy (HT) on cardiometabolic parameters is largely unknown. OBJECTIVE: The effects of 1 year of treatment with oral or transdermal administration of estrogen (plus cyproterone) and transdermal or IM application of testosterone on serum lipid levels and blood pressure (BP) were assessed in transgender persons. DESIGN AND METHODS: In this prospective, observational substudy of the European Network for the Investigation of Gender Incongruence, measurements were performed before and after 12 months of HT in 242 transwomen and 188 transmen from 2010 to 2017. RESULTS: Mean values are reported. In transmen, HT increased diastolic BP (2.5%; 95% CI, 0.6 to 4.4) and levels of total cholesterol (TC; 4.1%; 95% CI, 1.5 to 6.6), low-density lipoprotein-cholesterol (LDL-C; 13.0%; 95% CI, 9.2 to 16.8), and triglycerides (36.9%; 95% CI, 29.8 to 44.1); high-density lipoprotein-cholesterol levels decreased (HDL-C; 10.8%; 95% CI, -14.0 to -7.6). In transwomen, HT slightly decreased BP (systolic BP, -2.6%, 95% CI, -4.2 to -1.0; diastolic BP, -2.2%, 95% CI, -4.0 to -0.4) and decreased levels of TC (-9.7%; 95% CI, -11.3 to -8.1), LDL-C (-6.0%; 95% CI, -8.6 to 3.6), HDL-C (-9.3%; 95% CI, -11.4 to -7.3), and triglycerides (-10.2%; 95% CI, -14.5 to -5.9). CONCLUSION: Unfavorable changes in lipid profile were observed in transmen; a favorable effect was noted in transwomen. HT effects on BP were negligible. Long-term studies are warranted to assess whether and to what extent HT in trans individuals results in a differential effect on cardiovascular disease outcomes.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Acetato de Ciproterona/efeitos adversos , Estrogênios/efeitos adversos , Terapia de Reposição Hormonal/efeitos adversos , Procedimentos de Readequação Sexual/efeitos adversos , Testosterona/efeitos adversos , Administração Oral , Adolescente , Adulto , Pressão Sanguínea/efeitos dos fármacos , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/induzido quimicamente , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Acetato de Ciproterona/administração & dosagem , Estrogênios/administração & dosagem , Feminino , Terapia de Reposição Hormonal/métodos , Humanos , Masculino , Estudos Prospectivos , Fatores Sexuais , Procedimentos de Readequação Sexual/métodos , Testosterona/administração & dosagem , Adesivo Transdérmico , Pessoas Transgênero , Triglicerídeos/sangue , Adulto Jovem
14.
J Clin Endocrinol Metab ; 98(10): E1583-90, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23928672

RESUMO

CONTEXT: Growing evidence demonstrates that hyperparathyroidism is associated with an increased risk of cardiovascular morbidity and mortality. However, little is known about the relation between serum PTH levels within the normal range and cardiovascular diseases (CVD). OBJECTIVE: In this study the relationship of serum PTH levels within the normal range with CVD and abdominal aortic calcifications was investigated. DESIGN: A cross-sectional, population-based study was performed using data of the Longitudinal Aging Study Amsterdam, including 558 men and 537 women, aged 65-88 years. Models were controlled for sex, age, body mass index, hypertension, diabetes mellitus, high-density lipoprotein cholesterol, total cholesterol, smoking, physical activity, alcohol consumption, glomerular filtration rate, season of blood collection, calcium or diuretic use, and serum 25-hydroxyvitamin D and osteocalcin levels when these variables were found to be relevant confounders. RESULTS: Multivariate models showed that subjects in the highest quintile of serum PTH had a significantly higher risk of CVD as compared with subjects in the lowest quintile (odds ratio 2.22, confidence interval 1.39-3.56). The relationship between PTH and abdominal aortic calcifications was observed only in men, which remained significant after adjusting for confounders (odds ratio 4.03, confidence interval 1.50-10.83). CONCLUSIONS: This study demonstrated that in older persons the presence of serum PTH levels within the upper normal range is highly related to CVD. In men, this association may partly be explained by calcifications of the abdominal aorta. Because CVD poses an important health risk, further elucidation of the role of serum PTH in CVD and arteriosclerosis is relevant.


Assuntos
Arteriosclerose/sangue , Doenças Cardiovasculares/sangue , Hormônio Paratireóideo/sangue , Idoso , Idoso de 80 Anos ou mais , Consumo de Bebidas Alcoólicas/sangue , Índice de Massa Corporal , Colesterol/sangue , Estudos Transversais , Exercício Físico/fisiologia , Feminino , Taxa de Filtração Glomerular , Humanos , Estudos Longitudinais , Masculino , Fatores de Risco , Fumar/sangue
15.
Eur J Endocrinol ; 168(1): 59-65, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23093697

RESUMO

BACKGROUND: Studies suggest an association between a high TSH and (individual components of) the metabolic syndrome. Only a few studies have been performed in the general older population. OBJECTIVE: This study investigates the association between serum TSH and the metabolic syndrome in a representative sample of older persons in The Netherlands. DESIGN AND PATIENTS: Data of the Longitudinal Aging Study Amsterdam were used, which is an ongoing cohort study in a representative sample of Dutch older persons. A total of 1187 subjects (590 men and 597 women) between the ages of 65 and 88 years participated in the study. MEASUREMENTS: Metabolic syndrome (US National Cholesterol Education Program definition) and its individual components were assessed, as well as serum TSH levels. RESULTS: Among the participants, the prevalence of the metabolic syndrome was 34.2%. The mean serum TSH was 1.9 mU/l. Subjects in the upper quartile with a serum TSH level above 2.28 mU/l (odds ratio (OR)=1.68; 95% confidence interval (CI) 1.19-2.37) had a significantly increased prevalence of metabolic syndrome compared with subjects in the lowest quartile with a serum TSH below 1.04 mU/l. After adjustment for confounders, age, sex, alcohol use, total physical activity, and smoking, the OR was 1.62 (95% CI 1.15-2.32). CONCLUSIONS: Subjects with a serum TSH in the upper quartile have a higher prevalence of metabolic syndrome as compared with subjects with a serum TSH in the lowest quartile.


Assuntos
Síndrome Metabólica/sangue , Tireotropina/sangue , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Síndrome Metabólica/epidemiologia , Países Baixos/epidemiologia
16.
Ned Tijdschr Geneeskd ; 156(23): A4708, 2012.
Artigo em Holandês | MEDLINE | ID: mdl-22727232

RESUMO

Leukopenia has a high incidence and is usually a reason for additional testing. Benign ethnic neutropenia is a relatively common cause of neutropenia in the negroid population. It can be the cause of aberrant laboratory results in negroid patients. A 55-year-old woman from Ghana was referred to the outpatient clinic because of malaise, leukopenia and neutropenia. Viral infection, haematological malignancy, auto-immune disease and vitamin deficiency were considered, but could not be confirmed by additional testing. Upon further investigation, the neutropenia in this patient was found to have existed for years. Moreover, our patient's son also had asymptomatic leukopenia. Therefore, benign ethnic neutropenia was considered the most likely diagnosis. Serological analysis of the patient's erythrocytes revealed the absence of Duffy (Fy) blood group antigens Fy(a) and Fy(b), which is associated with benign ethnic neutropenia.


Assuntos
População Negra , Neutropenia/diagnóstico , Neutropenia/etnologia , Feminino , Gana/etnologia , Humanos , Leucopenia/diagnóstico , Pessoa de Meia-Idade
17.
Basic Res Cardiol ; 107(1): 233, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22167343

RESUMO

Pro-coagulant and pro-inflammatory intramyocardial (micro)vasculature plays an important role in acute myocardial infarction (AMI). Currently, inhibition of serine protease dipeptidyl peptidase 4 (DPP4) receives a lot of interest as an anti-hyperglycemic therapy in type 2 diabetes patients. However, DPP4 also possesses anti-thrombotic properties and may behave as an immobilized anti-coagulant on endothelial cells. Here, we studied the expression and activity of endothelial DPP4 in human myocardial infarction in relation to a prothrombogenic endothelial phenotype. Using (immuno)histochemistry, DPP4 expression and activity were found on the endothelium of intramyocardial blood vessels in autopsied control hearts (n = 9). Within the infarction area of AMI patients (n = 73), this DPP4 expression and activity were significantly decreased, coinciding with an increase in Tissue Factor expression. In primary human umbilical vein endothelial cells (HUVECs), Western blot analysis and digital imaging fluorescence microscopy revealed that DPP4 expression was strongly decreased after metabolic inhibition, also coinciding with Tissue Factor upregulation. Interestingly, inhibition of DPP4 activity with diprotin A also enhanced the amount of Tissue Factor encountered and induced the adherence of platelets under flow conditions. Ischemia induces loss of coronary microvascular endothelial DPP4 expression and increased Tissue Factor expression in AMI as well as in vitro in HUVECs. Our data suggest that the loss of DPP4 activity affects the anti-thrombogenic nature of the endothelium.


Assuntos
Trombose Coronária/enzimologia , Vasos Coronários/enzimologia , Dipeptidil Peptidase 4/metabolismo , Microvasos/enzimologia , Infarto do Miocárdio/enzimologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Células Endoteliais da Veia Umbilical Humana/enzimologia , Humanos , Masculino , Pessoa de Meia-Idade , Miocárdio/enzimologia , Adesividade Plaquetária , Tromboplastina/metabolismo
18.
J Rheumatol ; 38(2): 247-51, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21078720

RESUMO

OBJECTIVE: Rheumatoid arthritis (RA) is characterized by high levels of cytokines such as tumor necrosis factor (TNF). TNF appears to have an etiologic role in thyroid dysfunction, and thyroid dysfunction is a common comorbidity in RA. Anti-TNF treatment might limit thyroid dysfunction. Thus, changes in thyroid hormones were studied during TNF-blocking therapy in patients with RA. METHODS: At baseline and after 6 months' treatment with adalimumab, thyroid function [thyroid-stimulating hormone (TSH), free thyroxine (fT4), and antibodies against thyroid peroxidase (TPOabs)] were assessed in 138 consecutive adalimumab-treated patients with RA who were naive for TNF-blocking agents. Patients were categorized as hypothyroid, hyperthyroid, or euthyroid. In these groups, changes in thyroid function were determined. RESULTS: Prevalences of hypothyroidism, hyperthyroidism, and TPOabs were 13%, 5%, and 15%, respectively. After 6 months, TPOabs decreased from 267 to 201 IU/ml (p = 0.048). In hypothyroid patients without concomitant L-thyroxine, a trend for declining levels of TSH was observed. Subgroup analysis revealed that in patients who were hypothyroid and TPOabs-positive and L-thyroxine-naive, TSH levels decreased significantly, from 12.5 (interquartile range 6.7-18.4) to 7.1 (interquartile range 4.9-13.8) mU/l (p = 0.043). CONCLUSION: Anti-TNF treatment improves thyroid function in hypothyroid patients with RA (especially in those who are L-thyroxine-naive and TPOabs-positive), providing further evidence that inflammatory cytokines such as TNF have a pathogenic role in thyroid dysfunction.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/terapia , Hipotireoidismo/fisiopatologia , Glândula Tireoide/fisiopatologia , Adalimumab , Adulto , Idoso , Anticorpos Monoclonais Humanizados , Artrite Reumatoide/sangue , Artrite Reumatoide/complicações , Artrite Reumatoide/fisiopatologia , Feminino , Humanos , Hipotireoidismo/sangue , Hipotireoidismo/complicações , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Testes de Função Tireóidea , Tireotropina/sangue , Tiroxina/sangue , Resultado do Tratamento , Fator de Necrose Tumoral alfa/antagonistas & inibidores
19.
20.
Intern Med ; 47(24): 2165-8, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19075543

RESUMO

Distant metastases of a papillary thyroid carcinoma (PTC) is rare, and usually involves the lung or the bones. Adrenal metastasis of a PTC has been described only in three patients. We describe a 74-year-old woman with adrenal metastasis of a PTC, detected with a total body iodine scan and a PET-CT scan.


Assuntos
Neoplasias das Glândulas Suprarrenais/diagnóstico , Neoplasias das Glândulas Suprarrenais/secundário , Carcinoma Papilar/diagnóstico , Carcinoma Papilar/secundário , Neoplasias da Glândula Tireoide/diagnóstico , Neoplasias das Glândulas Suprarrenais/diagnóstico por imagem , Idoso , Carcinoma Papilar/diagnóstico por imagem , Feminino , Humanos , Radiografia , Cintilografia , Neoplasias da Glândula Tireoide/diagnóstico por imagem
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