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Items: 1 to 50 of 304

1.

Testosterone, androstenedione, cortisol and cortisone levels in human unstimulated, stimulated and parotid saliva.

Büttler RM, Bagci E, Brand HS, Heijer MD, Blankenstein MA, Heijboer AC.

Steroids. 2018 Oct;138:26-34. doi: 10.1016/j.steroids.2018.05.013. Epub 2018 Jun 1.

PMID:
29864449
2.

Nutrients required for phospholipid synthesis are lower in blood and cerebrospinal fluid in mild cognitive impairment and Alzheimer's disease dementia.

van Wijk N, Slot RER, Duits FH, Strik M, Biesheuvel E, Sijben JWC, Blankenstein MA, Bierau J, van der Flier WM, Scheltens P, Teunissen CE.

Alzheimers Dement (Amst). 2017 May 16;8:139-146. doi: 10.1016/j.dadm.2017.04.005. eCollection 2017.

3.

Comparison of multiplex platforms for cytokine assessments and their potential use for biomarker profiling in multiple sclerosis.

Malekzadeh A, Twaalfhoven H, Wijnstok NJ, Killestein J, Blankenstein MA, Teunissen CE.

Cytokine. 2017 Mar;91:145-152. doi: 10.1016/j.cyto.2016.12.021. Epub 2017 Jan 9.

PMID:
28082233
4.

Effect of pubertal suppression and cross-sex hormone therapy on bone turnover markers and bone mineral apparent density (BMAD) in transgender adolescents.

Vlot MC, Klink DT, den Heijer M, Blankenstein MA, Rotteveel J, Heijboer AC.

Bone. 2017 Feb;95:11-19. doi: 10.1016/j.bone.2016.11.008. Epub 2016 Nov 11.

PMID:
27845262
5.

Prognostic value of the S100B protein in newly diagnosed and recurrent glioma patients: a serial analysis.

Holla FK, Postma TJ, Blankenstein MA, van Mierlo TJM, Vos MJ, Sizoo EM, de Groot M, Uitdehaag BMJ, Buter J, Klein M, Reijneveld JC, Heimans JJ.

J Neurooncol. 2016 Sep;129(3):525-532. doi: 10.1007/s11060-016-2204-z. Epub 2016 Jul 11.

6.

The inflammatory marker GDF-15 is not independently associated with late-life depression.

Teunissen CE, Durieux-Lu S, Blankenstein MA, Oude Voshaar RC, Comijs HC.

J Psychosom Res. 2016 Apr;83:46-9. doi: 10.1016/j.jpsychores.2016.03.003. Epub 2016 Mar 9.

PMID:
27020076
7.

Reference values for salivary testosterone in adolescent boys and girls determined using Isotope-Dilution Liquid-Chromatography Tandem Mass Spectrometry (ID-LC-MS/MS).

Büttler RM, Peper JS, Crone EA, Lentjes EGW, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2016 May 1;456:15-18. doi: 10.1016/j.cca.2016.02.015. Epub 2016 Feb 23.

PMID:
26920638
8.

Comparison of eight routine unpublished LC-MS/MS methods for the simultaneous measurement of testosterone and androstenedione in serum.

Büttler RM, Martens F, Ackermans MT, Davison AS, van Herwaarden AE, Kortz L, Krabbe JG, Lentjes EG, Syme C, Webster R, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2016 Feb 15;454:112-8. doi: 10.1016/j.cca.2016.01.002. Epub 2016 Jan 8.

PMID:
26778410
9.

Determination of human reference values for serum total 1,25-dihydroxyvitamin D using an extensively validated 2D ID-UPLC-MS/MS method.

Dirks NF, Martens F, Vanderschueren D, Billen J, Pauwels S, Ackermans MT, Endert E, Heijer MD, Blankenstein MA, Heijboer AC.

J Steroid Biochem Mol Biol. 2016 Nov;164:127-133. doi: 10.1016/j.jsbmb.2015.12.003. Epub 2015 Dec 10.

PMID:
26690787
10.

Comparison of 7 Published LC-MS/MS Methods for the Simultaneous Measurement of Testosterone, Androstenedione, and Dehydroepiandrosterone in Serum.

Büttler RM, Martens F, Fanelli F, Pham HT, Kushnir MM, Janssen MJ, Owen L, Taylor AE, Soeborg T, Blankenstein MA, Heijboer AC.

Clin Chem. 2015 Dec;61(12):1475-83. doi: 10.1373/clinchem.2015.242859. Epub 2015 Oct 26.

11.

Facilitating the Validation of Novel Protein Biomarkers for Dementia: An Optimal Workflow for the Development of Sandwich Immunoassays.

Del Campo M, Jongbloed W, Twaalfhoven HA, Veerhuis R, Blankenstein MA, Teunissen CE.

Front Neurol. 2015 Sep 29;6:202. doi: 10.3389/fneur.2015.00202. eCollection 2015. Review.

12.

Clusterin Levels in Plasma Predict Cognitive Decline and Progression to Alzheimer's Disease.

Jongbloed W, van Dijk KD, Mulder SD, van de Berg WD, Blankenstein MA, van der Flier W, Veerhuis R.

J Alzheimers Dis. 2015;46(4):1103-10. doi: 10.3233/JAD-150036.

PMID:
26402636
13.

Testosterone, free testosterone, and free androgen index in women: Reference intervals, biological variation, and diagnostic value in polycystic ovary syndrome.

Bui HN, Sluss PM, Hayes FJ, Blincko S, Knol DL, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2015 Oct 23;450:227-32. doi: 10.1016/j.cca.2015.08.019. Epub 2015 Aug 29.

PMID:
26327459
14.

α-Klotho is unstable in human urine.

Adema AY, Vervloet MG, Blankenstein MA, Heijboer AC.

Kidney Int. 2015 Dec;88(6):1442-1444. doi: 10.1038/ki.2015.238. Epub 2015 Aug 5.

PMID:
26244922
15.

Determination of cortisol and cortisone in human mother's milk.

van der Voorn B, Martens F, Peppelman NS, Rotteveel J, Blankenstein MA, Finken MJ, Heijboer AC.

Clin Chim Acta. 2015 Apr 15;444:154-5. doi: 10.1016/j.cca.2015.02.015. Epub 2015 Feb 14. No abstract available.

PMID:
25687161
16.

Vitamin D supplementation and testosterone concentrations in male human subjects.

Heijboer AC, Oosterwerff M, Schroten NF, Eekhoff EM, Chel VG, de Boer RA, Blankenstein MA, Lips P.

Clin Endocrinol (Oxf). 2015 Jul;83(1):105-10. doi: 10.1111/cen.12711. Epub 2015 Feb 10.

PMID:
25557316
17.

Amyloid-β oligomers relate to cognitive decline in Alzheimer's disease.

Jongbloed W, Bruggink KA, Kester MI, Visser PJ, Scheltens P, Blankenstein MA, Verbeek MM, Teunissen CE, Veerhuis R.

J Alzheimers Dis. 2015;45(1):35-43. doi: 10.3233/JAD-142136.

PMID:
25547634
18.

Reference intervals - ever met a normal person?

Blankenstein MA.

Ann Clin Biochem. 2015 Jan;52(Pt 1):5-6. doi: 10.1177/0004563214561563. Epub 2014 Nov 6. No abstract available.

PMID:
25378665
19.

N-acetylaspartate and neurofilaments as biomarkers of axonal damage in patients with progressive forms of multiple sclerosis.

Trentini A, Comabella M, Tintoré M, Koel-Simmelink MJ, Killestein J, Roos B, Rovira A, Korth C, Ottis P, Blankenstein MA, Montalban X, Bellini T, Teunissen CE.

J Neurol. 2014 Dec;261(12):2338-43. doi: 10.1007/s00415-014-7507-4. Epub 2014 Sep 17.

PMID:
25228004
20.

Simultaneous measurement of testosterone, androstenedione and dehydroepiandrosterone (DHEA) in serum and plasma using Isotope-Dilution 2-Dimension Ultra High Performance Liquid-Chromatography Tandem Mass Spectrometry (ID-LC-MS/MS).

Büttler RM, Martens F, Kushnir MM, Ackermans MT, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2015 Jan 1;438:157-9. doi: 10.1016/j.cca.2014.08.023. Epub 2014 Aug 27.

PMID:
25172041
21.

First-trimester screening for down syndrome with serum sampling at different gestational ages: the effect on screening performance.

Engels MA, Twisk JW, Blankenstein MA, van Vugt JM.

Fetal Diagn Ther. 2014;36(4):293-8. doi: 10.1159/000362186. Epub 2014 Aug 22.

PMID:
25170623
22.

The cerebrospinal fluid "Alzheimer profile": easily said, but what does it mean?

Duits FH, Teunissen CE, Bouwman FH, Visser PJ, Mattsson N, Zetterberg H, Blennow K, Hansson O, Minthon L, Andreasen N, Marcusson J, Wallin A, Rikkert MO, Tsolaki M, Parnetti L, Herukka SK, Hampel H, De Leon MJ, Schröder J, Aarsland D, Blankenstein MA, Scheltens P, van der Flier WM.

Alzheimers Dement. 2014 Nov;10(6):713-723.e2. doi: 10.1016/j.jalz.2013.12.023. Epub 2014 Apr 8.

PMID:
24721526
23.

BRI2-BRICHOS is increased in human amyloid plaques in early stages of Alzheimer's disease.

Del Campo M, Hoozemans JJ, Dekkers LL, Rozemuller AJ, Korth C, Müller-Schiffmann A, Scheltens P, Blankenstein MA, Jimenez CR, Veerhuis R, Teunissen CE.

Neurobiol Aging. 2014 Jul;35(7):1596-604. doi: 10.1016/j.neurobiolaging.2014.01.007. Epub 2014 Jan 13.

PMID:
24524963
24.

Apolipoproteins E and J interfere with amyloid-beta uptake by primary human astrocytes and microglia in vitro.

Mulder SD, Nielsen HM, Blankenstein MA, Eikelenboom P, Veerhuis R.

Glia. 2014 Apr;62(4):493-503. doi: 10.1002/glia.22619. Epub 2014 Jan 20.

PMID:
24446231
25.

Peculiar observations in measuring testosterone in women treated with oral contraceptives supplemented with dehydroepiandrosterone (DHEA).

Heijboer AC, Zimmerman Y, de Boer T, Coelingh Bennink H, Blankenstein MA.

Clin Chim Acta. 2014 Mar 20;430:92-5. doi: 10.1016/j.cca.2013.12.042. Epub 2014 Jan 7.

PMID:
24406275
26.

Evaluation of the introduction of the national Down syndrome screening program in the Netherlands: age-related uptake of prenatal screening and invasive diagnostic testing.

Engels MA, Bhola SL, Twisk JW, Blankenstein MA, van Vugt JM.

Eur J Obstet Gynecol Reprod Biol. 2014 Mar;174:59-63. doi: 10.1016/j.ejogrb.2013.12.009. Epub 2013 Dec 15.

PMID:
24405726
27.

The impact of pre-analytical variables on the stability of neurofilament proteins in CSF, determined by a novel validated SinglePlex Luminex assay and ELISA.

Koel-Simmelink MJ, Vennegoor A, Killestein J, Blankenstein MA, Norgren N, Korth C, Teunissen CE.

J Immunol Methods. 2014 Jan 15;402(1-2):43-9. doi: 10.1016/j.jim.2013.11.008. Epub 2013 Nov 22.

PMID:
24275679
28.

Increased expression of matrix extracellular phosphoglycoprotein (MEPE) in cortical bone of the rat tibia after mechanical loading: identification by oligonucleotide microarray.

Reijnders CM, van Essen HW, van Rens BT, van Beek JH, Ylstra B, Blankenstein MA, Lips P, Bravenboer N.

PLoS One. 2013 Nov 8;8(11):e79672. doi: 10.1371/journal.pone.0079672. eCollection 2013.

29.

Quantification of clusterin in paired cerebrospinal fluid and plasma samples.

Jongbloed W, Herrebout MA, Blankenstein MA, Veerhuis R.

Ann Clin Biochem. 2014 Sep;51(Pt 5):557-67. doi: 10.1177/0004563213503456. Epub 2013 Oct 21.

PMID:
24146185
30.

The effect of combined oral contraception on testosterone levels in healthy women: a systematic review and meta-analysis.

Zimmerman Y, Eijkemans MJ, Coelingh Bennink HJ, Blankenstein MA, Fauser BC.

Hum Reprod Update. 2014 Jan-Feb;20(1):76-105. doi: 10.1093/humupd/dmt038. Epub 2013 Sep 29. Review.

31.

Preclinical AD predicts decline in memory and executive functions in subjective complaints.

van Harten AC, Smits LL, Teunissen CE, Visser PJ, Koene T, Blankenstein MA, Scheltens P, van der Flier WM.

Neurology. 2013 Oct 15;81(16):1409-16. doi: 10.1212/WNL.0b013e3182a8418b. Epub 2013 Sep 18.

PMID:
24049134
32.

Prevalence of vitamin D deficiency and consequences for PTH reference values.

Deckers MM, de Jongh RT, Lips PT, Penninx BW, Milaneschi Y, Smit JH, van Schoor NM, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2013 Nov 15;426:41-5. doi: 10.1016/j.cca.2013.08.024. Epub 2013 Sep 4.

PMID:
24012652
33.

Immunohistochemical characterization of novel monoclonal antibodies against the N-terminus of amyloid β-peptide.

Verwey NA, Hoozemans JJ, Korth C, van Royen MR, Prikulis I, Wouters D, Twaalfhoven HA, van Haastert ES, Schenk D, Scheltens P, Rozemuller AJ, Blankenstein MA, Veerhuis R.

Amyloid. 2013 Sep;20(3):179-87. doi: 10.3109/13506129.2013.797389. Epub 2013 Jul 5.

PMID:
23829200
34.

Laboratory aspects of circulating α-Klotho.

Heijboer AC, Blankenstein MA, Hoenderop J, de Borst MH, Vervloet MG; NIGRAM consortium.

Nephrol Dial Transplant. 2013 Sep;28(9):2283-7. doi: 10.1093/ndt/gft236. Epub 2013 Jun 19.

PMID:
23787542
35.

Pregnancy detection by quantitative urine hCG analysis: the need for a lower cut-off.

Terwijn M, van Schie A, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2013 Sep 23;424:174. doi: 10.1016/j.cca.2013.06.010. Epub 2013 Jun 15. No abstract available.

PMID:
23778026
36.

Age independent first trimester screening for Down syndrome: improvement in test performance.

Engels MA, Twisk JW, Blankenstein MA, van Vugt JM.

Prenat Diagn. 2013 Sep;33(9):884-8. doi: 10.1002/pd.4153. Epub 2013 May 31.

PMID:
23682007
37.

Measurement of dehydroepiandrosterone sulphate (DHEAS): a comparison of Isotope-Dilution Liquid Chromatography Tandem Mass Spectrometry (ID-LC-MS/MS) and seven currently available immunoassays.

Büttler RM, Kruit A, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2013 Sep 23;424:22-6. doi: 10.1016/j.cca.2013.04.028. Epub 2013 May 9.

PMID:
23665079
38.

Increase in cerebrospinal fluid F2-isoprostanes is related to cognitive decline in APOE ε4 carriers.

Duits FH, Kester MI, Scheffer PG, Blankenstein MA, Scheltens P, Teunissen CE, van der Flier WM.

J Alzheimers Dis. 2013;36(3):563-70. doi: 10.3233/JAD-122227.

PMID:
23629585
39.

Alzheimer's disease patients not carrying the apolipoprotein E ε4 allele show more severe slowing of oscillatory brain activity.

de Waal H, Stam CJ, de Haan W, van Straaten EC, Blankenstein MA, Scheltens P, van der Flier WM.

Neurobiol Aging. 2013 Sep;34(9):2158-63. doi: 10.1016/j.neurobiolaging.2013.03.007. Epub 2013 Apr 12.

PMID:
23587637
40.

Isotopically labelled testosterone derivatives as internal standards in liquid chromatography-tandem mass spectrometry.

Bui HN, Blankenstein MA, Heijboer AC.

Ann Clin Biochem. 2013 May;50(Pt 3):275-6. doi: 10.1177/0004563212473277. No abstract available.

PMID:
23431483
41.

ADAM12s and PP13 as first trimester screening markers for adverse pregnancy outcome.

Deurloo KL, Linskens IH, Heymans MW, Heijboer AC, Blankenstein MA, van Vugt JM.

Clin Chem Lab Med. 2013 Jun;51(6):1279-84. doi: 10.1515/cclm-2012-0566.

PMID:
23241612
42.

Cerebrospinal fluid Aβ42 is the best predictor of clinical progression in patients with subjective complaints.

van Harten AC, Visser PJ, Pijnenburg YA, Teunissen CE, Blankenstein MA, Scheltens P, van der Flier WM.

Alzheimers Dement. 2013 Sep;9(5):481-7. doi: 10.1016/j.jalz.2012.08.004. Epub 2012 Dec 8.

43.

Dynamics of serum testosterone during the menstrual cycle evaluated by daily measurements with an ID-LC-MS/MS method and a 2nd generation automated immunoassay.

Bui HN, Sluss PM, Blincko S, Knol DL, Blankenstein MA, Heijboer AC.

Steroids. 2013 Jan;78(1):96-101. doi: 10.1016/j.steroids.2012.10.010. Epub 2012 Nov 2.

PMID:
23127814
44.

Salivary testosterone in female-to-male transgender adolescents during treatment with intra-muscular injectable testosterone esters.

Bui HN, Schagen SE, Klink DT, Delemarre-van de Waal HA, Blankenstein MA, Heijboer AC.

Steroids. 2013 Jan;78(1):91-5. doi: 10.1016/j.steroids.2012.10.006. Epub 2012 Nov 2.

PMID:
23123742
45.

A prediction model to calculate probability of Alzheimer's disease using cerebrospinal fluid biomarkers.

Spies PE, Claassen JA, Peer PG, Blankenstein MA, Teunissen CE, Scheltens P, van der Flier WM, Olde Rikkert MG, Verbeek MM.

Alzheimers Dement. 2013 May;9(3):262-8. doi: 10.1016/j.jalz.2012.01.010. Epub 2012 Nov 2.

PMID:
23123231
46.

Discriminatory and predictive capabilities of enzyme-linked immunosorbent assay and multiplex platforms in a longitudinal Alzheimer's disease study.

Jongbloed W, Kester MI, van der Flier WM, Veerhuis R, Scheltens P, Blankenstein MA, Teunissen CE.

Alzheimers Dement. 2013 May;9(3):276-83. doi: 10.1016/j.jalz.2012.01.004. Epub 2012 Oct 27.

PMID:
23110867
47.

Measurement of dehydroepiandrosterone sulfate (DHEAS) in serum and cerebrospinal fluid by isotope-dilution liquid chromatography tandem mass spectrometry.

Büttler RM, Struys EA, Addie R, Blankenstein MA, Heijboer AC.

Clin Chim Acta. 2012 Dec 24;414:246-7. doi: 10.1016/j.cca.2012.09.024. Epub 2012 Oct 2. No abstract available.

PMID:
23041215
48.

CSF neurofilament and N-acetylaspartate related brain changes in clinically isolated syndrome.

Khalil M, Enzinger C, Langkammer C, Ropele S, Mader A, Trentini A, Vane ML, Wallner-Blazek M, Bachmaier G, Archelos JJ, Koel-Simmelink MJ, Blankenstein MA, Fuchs S, Fazekas F, Teunissen CE.

Mult Scler. 2013 Apr;19(4):436-42. doi: 10.1177/1352458512458010. Epub 2012 Aug 23.

49.

Reference measurement procedures for Alzheimer's disease cerebrospinal fluid biomarkers: definitions and approaches with focus on amyloid β42.

Mattsson N, Zegers I, Andreasson U, Bjerke M, Blankenstein MA, Bowser R, Carrillo MC, Gobom J, Heath T, Jenkins R, Jeromin A, Kaplow J, Kidd D, Laterza OF, Lockhart A, Lunn MP, Martone RL, Mills K, Pannee J, Ratcliffe M, Shaw LM, Simon AJ, Soares H, Teunissen CE, Verbeek MM, Umek RM, Vanderstichele H, Zetterberg H, Blennow K, Portelius E.

Biomark Med. 2012 Aug;6(4):409-17. doi: 10.2217/bmm.12.39. Review.

PMID:
22917143
50.

Cognitive correlates of cerebrospinal fluid biomarkers in frontotemporal dementia.

Koedam EL, van der Vlies AE, van der Flier WM, Verwey NA, Koene T, Scheltens P, Blankenstein MA, Pijnenburg YA.

Alzheimers Dement. 2013 May;9(3):269-75. doi: 10.1016/j.jalz.2011.12.007. Epub 2012 Jul 28.

PMID:
22846628

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