Research Topics
Genomes and GenesSpecies | Anne Mette HvasSummaryAffiliation: University of Copenhagen Country: Denmark Publications
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Publications
Change in hemostatic intervention after implementation of thromboelastometryAnne Mette Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, Skejby, Denmark
J Cardiothorac Vasc Anesth 26:227-31. 2012..To monitor the use of blood products and hemostatic intervention after implementation of thromboelastometry...
Vitamin B12 treatment normalizes metabolic markers but has limited clinical effect: a randomized placebo-controlled studyA M Hvas
Department of Hematology, Aas, Aarhus University Hospital, Tage Hansens Gade 2, 8000 Aarhus C, Denmark
Clin Chem 47:1396-404. 2001..The clinical significance of increased plasma methylmalonic acid (P-MMA) is unclear. We assessed the efficacy of vitamin B12 treatment in reducing P-MMA and plasma total homocysteine compared with the clinical benefits of treatment...
The effect of recombinant human intrinsic factor on the uptake of vitamin B12 in patients with evident vitamin B12 deficiencyAnne Mette Hvas
Department of Clinical Biochemistry, Skejby Hospital and Aarhus Hospital, Aarhus University Hospital, Aarhus, Denmark
Haematologica 91:805-8. 2006..Twenty-eight patients with suspected vitamin B12 deficiency showed no additional increase in holoTC after intake of rhIF-B12. We conclude that rhIF promotes B12 absorption among patients with evident vitamin B12 deficiency...
Vitamin B12 and vitamin B6 supplementation is needed among adults with phenylketonuria (PKU)A M Hvas
Department of Clinical Biochemistry, SKS, Aarhus University Hospital, Aarhus, Denmark
J Inherit Metab Dis 29:47-53. 2006..In conclusion PKU patients need continuing dietary guidance throughout adult life, and considering the risks, costs and potential benefits, daily vitamin supplementation seems justified in these patients...
Diagnosis and treatment of vitamin B12 deficiency--an updateAnne Mette Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, Skejby, Denmark
Haematologica 91:1506-12. 2006..Once the diagnosis of vitamin B12 deficiency has been confirmed efficient treatment can be ensured either by injections every 2-3 month or by a daily dose of 1 mg vitamin B12...
Circadian variation of holo-transcobalamin (holo-TC) and related markersAnne Mette Hvas
Department of Clinical Biochemistry, SKS, Aarhus University Hospital, Aarhus, Denmark
Clin Chem Lab Med 43:760-4. 2005..This supports the view that holo-TC is a marker of long-term vitamin B(12) status, and that samples may also be obtained from non-fasting subjects...
Thrombophilia risk factors are associated with intrauterine foetal death and pregnancy-related venous thromboembolismAnne Mette Hvas
Center for Haemophilia and Thrombosis, Department of Clinical Biochemistry, Aarhus University Hospital, Skejby, Denmark
Scand J Clin Lab Invest 69:288-94. 2009....
Holotranscobalamin--a first choice assay for diagnosing early vitamin B deficiency?A M Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus C, Denmark
J Intern Med 257:289-98. 2005..The performance of holotranscobalamin (holoTC) was compared with the other markers of vitamin B12 deficiency, and the influence of age, renal function, and thyroid status was examined...
No effect of vitamin B-12 treatment on cognitive function and depression: a randomized placebo controlled studyAnne Mette Hvas
Department of Haematology, Aas, Aarhus University Hospital, Aarhus, Denmark
J Affect Disord 81:269-73. 2004..Associations between vitamin B-12 deficiency and impaired cognitive function and depression have been reported...
Vitamin B-12 treatment has limited effect on health-related quality of life among individuals with elevated plasma methylmalonic acid: a randomized placebo-controlled studyA M Hvas
Department of Haematology, Aas, Aarhus University Hospital, Aarhus Kommunehospital, Nørrebrogade 44, 8000 Aarhus C, Denmark
J Intern Med 253:146-52. 2003..To examine the hypothesis that treatment with vitamin B-12 improves health-related quality of life (HRQOL) in individuals with biochemical signs of vitamin B-12 deficiency...
Use of plasma methylmalonic acid in diagnosing vitamin B-12 deficiency in general practiceAnne Mette Hvas
Department of Haematology, Aarhus University Hospital, Denmark
Scand J Prim Health Care 20:57-9. 2002..To examine the reasons why general practitioners (GPs) request plasma methylmalonic acid (MMA) tests and how they respond to a result above the reference interval...
Health technology assessment in clinical biochemistry. Methylmalonic acid: a Danish showcaseA M Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
Scand J Clin Lab Invest 63:319-30. 2003..Our HTA shows that the resources employed to diagnose and to treat vitamin B-12 deficiency have increased considerably, but yet we have no evidence to suggest the clinical benefit...
Vitamin B6 level is associated with symptoms of depressionAnne Mette Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, AKH, Aarhus, Denmark
Psychother Psychosom 73:340-3. 2004..In the present study, we examined the association between depression and the phosphate derivative of vitamin B6 in plasma, pyridoxal phosphate (PLP)...
[Diagnosis of vitamin B12 deficiency--time for reflection]Anne Mette Hvas
Klinisk Biokemisk Afdeling, Arhus Kommunehospital, DK 8000 Arhus C
Ugeskr Laeger 165:1971-6. 2003..For patients who also have an MMA in the grey area (0.29-0.75 mumol/l) we recommend that the patient is re-examined after about a year...
Tranexamic acid combined with recombinant factor VIII increases clot resistance to accelerated fibrinolysis in severe hemophilia AA M Hvas
Center for Hemophilia and Thrombosis, Department of Clinical Biochemistry, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, Aarhus N, Denmark
J Thromb Haemost 5:2408-14. 2007..In addition to both the delayed and slow development of a clot, previous studies have documented that severe hemophilia A is also associated with reduced clot stability...
The vitamin B12 absorption test, CobaSorb, identifies patients not requiring vitamin B12 injection therapyAnne Mette Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, Skejby, Denmark
Scand J Clin Lab Invest 71:432-8. 2011..Treatment with vitamin B12 has virtually no side effects; however, life-long treatment is inconvenient for the patient and constitutes a cost for society...
Platelet aggregation is dependent on platelet count in patients with coronary artery diseaseMorten Würtz
Department of Cardiology, Aarhus University Hospital, Skejby, Denmark
Thromb Res 129:56-61. 2012..This study investigated the importance of platelet count, haematocrit, red blood cells (RBC), and white blood cells in whole blood platelet aggregometry...
Patients with previous definite stent thrombosis have a reduced antiplatelet effect of aspirin and a larger fraction of immature plateletsMorten Würtz
Department of Cardiology, Aarhus University Hospital, Skejby, Denmark
JACC Cardiovasc Interv 3:828-35. 2010..This study sought to evaluate the platelet response to aspirin and the immature platelet fraction in patients with previous stent thrombosis (ST)...
Uptake of cobalamin and markers of cobalamin status: a longitudinal study of healthy pregnant womenEva Greibe
Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
Clin Chem Lab Med 49:1877-82. 2011..Currently, it is unknown whether the decline in plasma cobalamin observed during pregnancy is caused by malabsorption of the vitamin. This study examined cobalamin absorption and markers of cobalamin status during normal pregnancy...
Evaluation of aspirin response by Multiplate whole blood aggregometry and light transmission aggregometrySusanne B Pedersen
Department of Cardiology, Aarhus University Hospital, Skejby, Denmark
Platelets 20:415-20. 2009..Clinical studies are needed to investigate whether a high platelet aggregation level measured by Multiplate whole blood aggregometry during aspirin treatment is associated with a poor clinical outcome...
Influence of renal function and platelet turnover on the antiplatelet effect of aspirinMorten Würtz
Department of Cardiology, Aarhus University Hospital, Skejby, Denmark
Thromb Res 129:434-40. 2012..Kidney disease predisposes to cardiovascular events. This study investigated the influence of renal function and platelet turnover on the antiplatelet effect of aspirin in patients with coronary artery disease...
Plasma holotranscobalamin compared with plasma cobalamins for assessment of vitamin B12 absorption; optimisation of a non-radioactive vitamin B12 absorption test (CobaSorb)Anne Mette Hvas
Department of Clinical Biochemistry, Skejby Hospital, Aarhus University Hospital, 8000 Aarhus, Denmark
Clin Chim Acta 376:150-4. 2007..A recently developed non-radioactive vitamin B(12) absorption test (CobaSorb) was further explored to identify the best marker for reflection of vitamin B(12) absorption and to determine the duration of the test...
Increased platelet aggregation and serum thromboxane levels in aspirin-treated patients with prior myocardial infarctionSanne Bøjet Larsen
Department of Cardiology, Aarhus University Hospital, Denmark
Thromb Haemost 108:140-7. 2012..Serum thromboxane B2 levels were higher in MI patients than in patients without prior MI. Finally, patients on aspirin before MI onset had higher aggregation levels compared with patients not on aspirin...
Assessment of vitamin B(12) absorption based on the accumulation of orally administered cyanocobalamin on transcobalaminTore Forsingdal Hardlei
Department of Clinical Biochemistry, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, DK 8200 Aarhus N, Denmark
Clin Chem 56:432-6. 2010..We hypothesize that cyanocobalamin (CNCbl) is absorbed unchanged, thereby allowing measurement of the complex of CNCbl bound to TC (TC-CNCbl) to be used for studying the absorption of the vitamin...
Effect of vitamin B12 treatment on haptocorrinAnne L Mørkbak
Department of Clinical Biochemistry, Aarhus Sygehus, Denmark
Clin Chem 52:1104-11. 2006..Haptocorrin (HC) carries the major part of circulating cobalamin, but whether HC is altered on treatment with vitamin B12 remains unknown...
Autoantibodies against intrinsic factor (IF) measured with an ELISA using recombinant human IF as both catching and detecting reagentEbba Nexo
Department of Clinical Biochemistry, NBG, As, Aarhus University Hospital, Denmark
Clin Chem Lab Med 43:351-6. 2005..In conclusion, an ELISA using recombinant IF as both catching and detection reagent seems suitable for the detection of IF autoantibodies in plasma...
Holo-transcobalamin is an early marker of changes in cobalamin homeostasis. A randomized placebo-controlled studyEbba Nexo
Department of Clinical Biochemistry, AKH, Aarhus University Hospital, DK 8000 Aarhus C, Denmark
Clin Chem 48:1768-71. 2002..We examined the effect of oral vitamin B(12) treatment on fluctuations in plasma total cobalamin and its binding proteins transcobalamin (TC) and haptocorrin (HC)...
Holotranscobalamin remains unchanged during pregnancy. Longitudinal changes of cobalamins and their binding proteins during pregnancy and postpartumAnne L Morkbak
Dept of Clinical Biochemistry, Aarhus University Hospital, Aarhus Sygehus, Denmark
Haematologica 92:1711-2. 2007..The decrease in cobalamins is explained by a decreased holohaptocorrin (holoHC), suggesting that holoTC rather than cobalamins should be used as a marker of vitamin B12 deficiency during pregnancy...
Transfusion requirements in 811 patients during and after cardiac surgery: a prospective observational studyHanne B Ravn
Department of Anaesthesia and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
J Cardiothorac Vasc Anesth 25:36-41. 2011..To identify patients at risk for intra- and postoperative blood product transfusion in a mixed adult cardiac surgical patient population...
Reference intervals for platelet aggregation assessed by multiple electrode platelet aggregometryPeter Rubak
Department of Clinical Biochemistry, Aarhus University Hospital, Denmark
Thromb Res 130:420-3. 2012..Reference intervals for the most commonly used agonists were established, and the association between platelet aggregation, age, gender and haematological values was analysed...
A comparison of platelet function tests and thromboxane metabolites to evaluate aspirin response in healthy individuals and patients with coronary artery diseaseErik Lerkevang Grove
Department of Cardiology, Aarhus University Hospital, Skejby, Aarhus, Denmark
Thromb Haemost 103:1245-53. 2010..This study demonstrated that conclusions based on platelet function testing strongly depend on the assay used...
Shear-induced platelet aggregation in aspirin-treated patients: Initial experience with the novel PlaCor PRT® deviceMorten Würtz
Department of Cardiology, Aarhus University Hospital, Denmark
Thromb Res 130:753-8. 2012..The novel PlaCor PRT® provides a global platelet reactivity test based on shear-induced platelet aggregation. We evaluated the PlaCor PRT® and its agreement with two widely used platelet function tests...
Holo-transcobalamin concentration and transcobalamin saturation reflect recent vitamin B12 absorption better than does serum vitamin B12Mustafa Vakur Bor
Department of Clinical Biochemistry, AKH, Aarhus University Hospital, Norrebrogade 44, DK 8000 Aarhus C, Denmark
Clin Chem 50:1043-9. 2004..We evaluated whether measurement of vitamin B(12)-saturated transcobalamin (holo-TC) concentrations or TC saturation (holo-TC:total TC) reflects active vitamin B(12) absorption in healthy individuals and patients after vitamin B(12) intake...
Reference intervals for haematological variables during normal pregnancy and postpartum in 434 healthy Danish womenNils Milman
Department of Obstetrics, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
Eur J Haematol 79:39-46. 2007..To report reference intervals for haematological variables during normal pregnancy and postpartum...
Immature platelets in patients with acute coronary syndromesErik Lerkevang Grove
Department of Cardiology, Aarhus University Hospital Skejby, Brendstrupgaardsvej 100, DK 8200 Aarhus N, Denmark
Thromb Haemost 101:151-6. 2009..In conclusion, the fraction of immature platelets is increased in acute coronary syndromes, especially in the acute phase of STEMI. Immature platelets with an increased haemostatic potential may contribute to coronary thrombus formation...
Can RoTEM® analysis be applied for haemostatic monitoring in paediatric congenital heart surgery?Jo Bønding Andreasen
Department of Anaesthesiology and Intensive Care, Centre for Haemophilia and Thrombosis, Aarhus University Hospital, Skejby, Denmark
Cardiol Young 21:684-91. 2011..Whole-blood rotation thromboelastometry (RoTEM®) provides continuous qualitative haemostatic profiles, and the technique has shown promising results in adult cardiac surgery...
Pharmacogenetics of the antiplatelet effect of aspirinMorten Würtz
Department of Cardiology, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, 8200 Aarhus, Denmark
Curr Pharm Des 18:5294-308. 2012..The present review outlines the pharmacology of aspirin and provides an overview of specific genetic variations considered to influence the antiplatelet effect of aspirin...
Changes in fibrin D-dimer, fibrinogen, and protein S during pregnancyAnette Tarp Hansen
Department of Clinical Biochemistry, Center of Hemophilia and Thrombosis, Aarhus University Hospital, Skejby, Denmark
Scand J Clin Lab Invest 71:173-6. 2011..Objectives. The aim of the present study was to contribute to the establishment of reference intervals for D-dimer, fibrinogen and protein S during pregnancy and to discuss the use of the analyses during pregnancy...
The antiplatelet effect of aspirin is reduced by proton pump inhibitors in patients with coronary artery diseaseMorten Würtz
Department of Cardiology, Aarhus University Hospital, Skejby, Denmark
Heart 96:368-71. 2010..To evaluate the effect of proton pump inhibitors (PPIs) on the platelet response to aspirin in patients with coronary artery disease (CAD)...
Monitoring aspirin therapy with the Platelet Function Analyzer-100Jette Mortensen
Department of Cardiology, Aarhus University Hospital Skejby, Aarhus, Denmark
Scand J Clin Lab Invest 68:786-92. 2008..We aimed to assess the reproducibility of the PFA-100 and the agreement with optical platelet aggregometry (OPA) in healthy volunteers and in patients with coronary artery disease (CAD) treated with low-dose aspirin...
Erythrocyte folate, plasma folate and plasma homocysteine during normal pregnancy and postpartum: a longitudinal study comprising 404 Danish womenNils Milman
Department of Obstetrics, Gentofte Hospital, University of Copenhagen, Denmark
Eur J Haematol 76:200-5. 2006..To assess folate and homocysteine status during normal pregnancy and postpartum in a longitudinal setting...
Holotranscobalamin as a predictor of vitamin B12 statusAnne-Mette Hvas
Department of Clinical Biochemistry, Aarhus University Hospital, AKH, Aarhus, Denmark
Clin Chem Lab Med 41:1489-92. 2003..Large-scale clinical studies are warranted in order to clarify the usefulness of holotranscobalamin in the clinical setting...
Holotranscobalamin as an indicator of dietary vitamin B12 deficiencyZouë Lloyd-Wright
Nutrition Food and Health Research Centre, King s College London, Franklin Wilkins Bldg, 150 Stamford St, Waterloo, London SE1 9NN, United Kingdom
Clin Chem 49:2076-8. 2003
Quantification of holo-transcobalamin, a marker of vitamin B12 deficiencyEbba Nexo
Department of Clinical Biochemistry, Aarhus University Hospital, DK-8000 Aarhus C, Denmark
Clin Chem 48:561-2. 2002
Body iron and individual iron prophylaxis in pregnancy--should the iron dose be adjusted according to serum ferritin?Nils Milman
Department of Obstetrics, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
Ann Hematol 85:567-73. 2006..In the prevention of IDA, we suggest 40 mg ferrous iron/day to women having ferritin <or=70 microg/l. Women with ferritin >70 microg/l have no need for iron supplement...
Cobalamin status during normal pregnancy and postpartum: a longitudinal study comprising 406 Danish womenNils Milman
Department of Obstetrics, Gentofte Hospital, University of Copenhagen, Denmark
Eur J Haematol 76:521-5. 2006..To assess cobalamin (vitamin B(12)) status during normal pregnancy and postpartum in a longitudinal setting...
Evaluation of the technical performance of novel holotranscobalamin (holoTC) assays in a multicenter European demonstration projectAnne L Morkbak
Department of Clinical Biochemistry, As, Aarhus University Hospital, Aarhus, Denmark
Clin Chem Lab Med 43:1058-64. 2005..The results obtained using the holoTC RIA were similar to those obtained using the holoTC ELISA assay...
Health technology assessment: a "must" for laboratory medicine?Anne Mette Hvas
Scand J Clin Lab Invest 63:317-8. 2003
