Abstract:
OBJECTIVES:To study fasting and postmethionine-loading (increment and decrement) plasma homocysteine levels in end-stage renal disease (ESRD) patients in relation to B-vitamin status and after folic acid treatment without or with betaine. DESIGN:Plasma total homocysteine (tHcy) and methionine levels were measured in chronic haemodialysis patients after an overnight fast, and 6 and 24 h after an oral methionine load (0.1 g kg-1). The patients were subsequently randomized to treatment with folic acid 5 mg daily with or without betaine 4 g daily, and the loading test was repeated after 12 weeks. The patients were then re-randomized to treatment with 1 or 5 mg folic acid daily for 40 weeks, after which a third loading test was performed. SETTING:Haemodialysis unit of university hospital and centre for haemodialysis. SUBJECTS:Twenty-nine consecutive maintenance (> 3 months) haemodialysis patients, not on folic acid supplementation, 26 of whom completed the study. RESULTS:At baseline, the mean fasting, the 6 h postload and the 6 h postload increment plasma tHcy levels were increased as compared with those in healthy controls (46.8 +/- 6.9 (SEM), 92.8 +/- 9.1 and 46.0 +/- 4.2 mumol L-1, respectively) and correlated with serum folate (r = -0.42, P = 0.02; r = -0.61, P = 0.001 and r = -0.54, P = 0.003, respectively), but not with vitamin B6 or vitamin B12. At week 12, these variables had all decreased significantly. Betaine did not have additional homocysteine-lowering effects. At week 52, fasting and postload tHcy levels did not differ significantly between patients on 1 or 5 mg folic acid daily. Plasma tHcy half-life and plasma methionine levels after methionine loading were not altered by folic acid treatment. CONCLUSIONS:In chronic haemodialysis patients, fasting as well as postmethionine-loading plasma tHcy levels depend on folate status and decrease after folic acid therapy. Increased postload homocysteine levels in these patients therefore do not necessarily indicate an impaired transsulphuration capacity only; alternatively, folate may indirectly influence transsulphuration. The elucidation of the complex pathogenesis of hyperhomocysteinaemia in chronic renal failure requires further investigation.
journal_name
J Intern Medjournal_title
Journal of internal medicineauthors
van Guldener C,Janssen MJ,de Meer K,Donker AJ,Stehouwer CDdoi
10.1046/j.1365-2796.1999.00430.xsubject
Has Abstractpub_date
1999-02-01 00:00:00pages
175-83issue
2eissn
0954-6820issn
1365-2796journal_volume
245pub_type
临床试验,杂志文章,随机对照试验abstract:OBJECTIVES:There is uncertainty amongst clinicians about the definitions of cobalamin and folate deficiency and therefore about the indications for treatment. In this report we present the results of systematic cobalamin and folic acid treatment based upon serum cobalamin, total homocysteine (tHcy) and methylmalonic ac...
journal_title:Journal of internal medicine
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2796.1999.00559.x
更新日期:1999-09-01 00:00:00
abstract::We observed two patients with hypercholesterolaemia and tendon xanthomas associated with apolipoprotein (apoE-7) E-7, a rare variant of the apoE isoforms. Both suffered from coronary artery disease and had undergone a coronary bypass operation. Their cholesterol levels were 268 and 310 mg dl-1, respectively. Both pati...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.1994.tb01051.x
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVES:To ascertain whether patients with Crohn's disease treated with azathioprine maintained bone mineral mass better than patients treated with steroids alone. DESIGN:Retrospective study. SETTING:University Hospital of Malmö, Sweden. SUBJECTS:A total of 59 patients with ileocolonic, ileocaecal or colonic Croh...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1046/j.1365-2796.1998.00246.x
更新日期:1998-02-01 00:00:00
abstract::We investigated skeletal involvement in five male and two female patients with ochronosis, aged 26-82 years. The main parameters of mineral metabolism, together with biochemical markers of bone resorption (urinary N-telopeptides of type I collagen) and formation (serum bone isoenzyme of alkaline phosphatase and serum ...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1046/j.1365-2796.2003.01145.x
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND:Bupropion sustained release (bupropion SR) has been shown to increase smoking cessation success rates in the US studies. OBJECTIVE:To determine whether bupropion SR, in combination with counselling, is effective for smoking cessation in a multi-country study. METHODS:This randomized, double-blind, placebo-...
journal_title:Journal of internal medicine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1046/j.1365-2796.2003.01185.x
更新日期:2003-08-01 00:00:00
abstract::Hyponatraemia (HN) can result from a wide range of mechanisms, and therapy must be individualized. Two theories of the origin of HN in acute brain disease have prevailed. The first is the cerebral salt wasting syndrome (CSWS), where excessive natriuresis caused by some unknown cerebral natriuretic factor lowers the to...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2796.1992.tb00588.x
更新日期:1992-10-01 00:00:00
abstract:OBJECTIVE:Findings from animal studies indicate that growth hormone (GH) may stimulate the production of the putative metabolic regulator fibroblast growth factor 21 (FGF21). We investigated whether circulating FGF21 levels are altered in patients with GH deficiency and characterized how levels of this growth factor ar...
journal_title:Journal of internal medicine
pub_type: 杂志文章,多中心研究
doi:10.1111/joim.12112
更新日期:2013-09-01 00:00:00
abstract::In this article, we review the current knowledge of the inherited genetics of epithelial ovarian cancer (EOC) susceptibility and clinical outcome. We focus on recent developments in identifying low-penetrance susceptibility genes and the role of the Ovarian Cancer Association Consortium (OCAC) in these discoveries. Th...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2796.2011.02509.x
更新日期:2012-04-01 00:00:00
abstract:OBJECTIVE:To describe the epidemiology, pathogenesis and clinical features of hepatocellular carcinoma (HCC) in patients with acute intermittent porphyria (AIP). DESIGN:A retrospective population-based mortality study. SUBJECTS:All inhabitants who died between 1978-1990 (2122) including 33 with AIP, in two municipali...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1046/j.1365-2796.1996.21847000.x
更新日期:1996-10-01 00:00:00
abstract::The incidence of obesity and metabolic disease, such as type 2 diabetes mellitus (T2D), is rising globally. Dietary lipid over supply leads to lipid accumulation at ectopic sites, such as skeletal muscle. Ectopic lipid storage is highly correlated with insulin resistance and T2D, likely due to a loss of metabolic flex...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/joim.12729
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:We aimed to study the effect of social containment mandates on ACS presentation during COVID-19 pandemic using location activity and mobility data from mobile phone map services. METHODS:We conducted a cross-sectional study using data from the Swedish Coronary Angiography and Angioplasty Registry (SCAAR) in...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/joim.13206
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVES:Physical activity (PA) is a preventive strategy for cardiovascular disease and for managing cardiovascular risk factors. There is little information on the effectiveness of PA for the prevention of cardiovascular outcomes once cardiovascular disease is present. Thus, we studied the relationship between PA at...
journal_title:Journal of internal medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/j.1365-2796.2007.01808.x
更新日期:2007-10-01 00:00:00
abstract:OBJECTIVES:To analyse whether there is an association between country of birth in first-generation immigrants and first hospitalization for or death from coronary heart disease (CHD) and to analyse whether this association remains in second-generation immigrants. DESIGN:In this follow-up study, the MigMed database at ...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.2006.01630.x
更新日期:2006-04-01 00:00:00
abstract::Poikilothermia syndrome is a rare cause of intrinsic thermoregulatory failure. Patients with this syndrome regulate body temperature poorly, if at all. Recently, a patient was referred to us who had clinical evidence of poikilothermia syndrome, as well as long-standing multiple sclerosis. Computerized tomography and m...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2796.1998.00384.x
更新日期:1998-11-01 00:00:00
abstract:OBJECTIVES:Single nucleotide polymorphisms in genes encoding inflammatory molecules may determine genetic profiles associated with increased risk of development and progression of cardiovascular diseases. In this study, we evaluated distribution and reciprocal interaction of a set of functionally important polymorphism...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.2007.01791.x
更新日期:2007-07-01 00:00:00
abstract:OBJECTIVES:To investigate if an insertion/deletion (I/D) polymorphism in the angiotensin-converting enzyme (ACE) gene associates with HLA-DR alleles previously found to be of prognostic interest in Scandinavian sarcoidosis patients. This may contribute to characteristics associated with these HLA-DR alleles, such as a ...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1046/j.1365-2796.2002.00946.x
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVES:The objective of the study was to determine whether an association between diet and platelet function, plasma fibrinogen level and factor VII coagulant activity (VII:C) could be established in young subjects. DESIGN:Data on the habitual diet of the subjects were collected either by a questionnaire on food h...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.1995.tb00888.x
更新日期:1995-06-01 00:00:00
abstract::The link between inflammation and metabolism was apparent already early last century, but has recently been revitalized following molecular studies of atherosclerosis, obesity and insulin resistance. A growing list of nuclear receptors, pivotal players in lipid, xenobiotic and energy metabolism has been identified as ...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2796.2008.01964.x
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Intravenous nitrate therapy has been shown to improve short-term outcome of acute heart failure patients treated in the intensive care unit. The potential of a noninvasive high-dose nitrate strategy in the Emergency Department and the general ward remains unknown. METHODS:A total of 128 consecutive acute he...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.2009.02146.x
更新日期:2010-03-01 00:00:00
abstract::The B lymphocyte-associated antigen CD20 is becoming an important immunotherapy target for autoimmune diseases, although its biological function has not been defined. Besides rheumatoid arthritis, growing experience with B cell-depleting therapy indicates that it may be effective in Sjögren's syndrome, dermatomyositis...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2796.2009.02207.x
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:No survival benefit of using blood stem cells instead of bone marrow (BM) has been shown in matched unrelated donor (MUD) transplantation. DESIGN AND METHODS:In a retrospective registry analysis, we compared the use of blood stem cells (n = 1502) and BM (n = 760) from unrelated donors in patients aged 18-60...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.2012.02547.x
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:Patients with psoriasis are prone to premature atherosclerosis and increased risk of cardiovascular disease events. However, the prevalence and extent of atherosclerosis in patients with psoriasis are unknown. DESIGN:A cross-sectional study. SETTING AND SUBJECTS:The prevalence and extent of coronary and car...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/joim.12002
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Atherosclerosis is a multifactorial disease, in part characterized by chronic inflammatory changes in the vessel wall and loss of normal physical and biochemical interactions between endothelial cells and smooth muscle cells. Previous studies [Hu J., Cotgreave IA. J Clin Invest; 99: 1-5] have ...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1046/j.1365-2796.1999.00564.x
更新日期:1999-08-01 00:00:00
abstract::Cardiac troponin assays have become more sensitive over the years leading to the clinical introduction of high-sensitivity cardiac troponin assays in 2010. Their use has revolutionized the assessment of patients with chest pain in the emergency department by allowing earlier rule-in and rule-out of myocardial infarcti...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/joim.12779
更新日期:2018-07-01 00:00:00
abstract::Rare cases of hepatotoxicity have been attributed to the antiarrhythmic agent procainamide. We here describe the case of a patient who had a hypersensitivity reaction to procainamide with fever, chills, arthralgia, abdominal pain and acute elevations of serum aminotransferase activities and bilirubin concentration. Th...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.1992.tb00599.x
更新日期:1992-10-01 00:00:00
abstract:INTRODUCTION:Biomarkers have emerged as interesting predictors of risk in non-ST elevation acute coronary syndromes (non-ST ACS). The aim of this study was to define the utility of the combined measurement of troponin T (TnT), C-reactive protein (CRP), NT pro-brain natriuretic peptide (NT pro-BNP) and D-dimer as biomar...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.2007.01871.x
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVES:To describe types of diabetes treatment in a total, adult population, including those on no antidiabetic medication, and to evaluate use of the defined daily doses in estimation of diabetes prevalence. DESIGN:Cross-sectional epidemiologic survey applying patient-based questionnaires and clinical examination...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.1994.tb00793.x
更新日期:1994-09-01 00:00:00
abstract::Vasopressin (AVP) plays a major role in the regulation of water and sodium homeostasis by its antidiuretic action on the kidney, mediated by V2 receptors. AVP secretion is stimulated by a rise in plasma osmolality, a decline in blood volume or stress. V1a receptors are expressed in vascular smooth muscle cells, but th...
journal_title:Journal of internal medicine
pub_type: 杂志文章,评审
doi:10.1111/joim.12645
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:The effects of atorvastatin, a new synthetic HMG-CoA reductase inhibitor, were investigated in patients with familial hypercholesterolaemia (FH), with high LDLc levels whilst on standard treatment. DESIGN:Open treatment with 40 mg atorvastatin daily for 6 weeks, followed by another 6 weeks with 80 mg atorva...
journal_title:Journal of internal medicine
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2796.1998.00352.x
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:The contribution of plasma lipids to cardiovascular risk is usually evaluated by measuring plasma concentrations of total cholesterol, triglycerides and HDL cholesterol, and calculating LDL cholesterol concentration. We investigated plasma concentrations of apolipoproteins and lipoprotein particles in women ...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1046/j.1365-2796.2000.00567.x
更新日期:2000-01-01 00:00:00