Skip to content

Home Search Authors Pakistan News Saved

SciRah

SciRah does not host or store research papers. Results come live from free, official scholarly APIs, and every paper links back to its original source.

Data sources

OpenAlex
Semantic Scholar
Crossref
CORE
arXiv
PubMed

Privacy policy Terms of service

J. van Helden · SciRah

Researcher profile · Semantic Scholar

J. van Helden

Share profile

J. van Helden — researcher profile on SciRah

h-index: 18
Works: 58
Citations: 955

Most-cited papers

Liver Fibrosis and Metabolic Alterations in Adults with Alpha1 Antitrypsin Deficiency Caused by the Pi*ZZ Mutation.
K. Hamesch, M. Mandorfer, V. Pereira, Linda S. Moeller +45 more
2019Gastroenterology117 citations Open access
Semantic Scholar
Performance of the two new fully automated anti-Müllerian hormone immunoassays compared with the clinical standard assay.
J. van Helden, R. Weiskirchen
2015Human Reproduction81 citations Open access
Semantic Scholar
Clinical value of the first automated TSH receptor autoantibody assay for the diagnosis of Graves’ disease (GD): an international multicentre trial
M. Schott, D. Hermsen, M. Broecker-Preuss, M. Casati +17 more
2009Clinical Endocrinology73 citations
Semantic Scholar
Multicenter evaluation of a fully automated third-generation anti-HCV antibody screening test with excellent sensitivity and specificity
F. Alborino, A. Burighel, F. Tiller, J. van Helden +4 more
2011Medical Microbiology and Immmunology54 citations
Semantic Scholar
Unrecognized secondary causes of hypertension in patients with hypertensive urgency/emergency: prevalence and co-prevalence
J. Börgel, S. Springer, Jasmin Ghafoor, D. Arndt +8 more
2010Clinical Research in Cardiology52 citations
Semantic Scholar
Performance evaluation of a new fourth-generation HIV combination antigen–antibody assay
A. Mühlbacher, H. Schennach, J. van Helden, T. Hebell +14 more
2012Medical Microbiology and Immmunology46 citations Open access
Semantic Scholar
Non-equivalence of anti-Müllerian hormone automated assays—clinical implications for use as a companion diagnostic for individualised gonadotrophin dosing
S. Iliodromiti, Barbara Salje, D. Dewailly, C. Fairburn +10 more
2017Human Reproduction45 citations Open access
Semantic Scholar
Technical evaluation of the first fully automated assay for the detection of TSH receptor autoantibodies.
D. Hermsen, M. Broecker-Preuss, M. Casati, J. C. Mas +14 more
2009Clinica chimica acta; international journal of clinical chemistry37 citations
Semantic Scholar
Performance evaluation of the ADVIA Centaur(®) HIV Ag/Ab Combo assay.
T. Pumarola, J. Freeman, E. Saxton, P. Dillon +2 more
2010Journal of Virological Methods29 citations
Semantic Scholar
Experience with the first fully automated chemiluminescence immunoassay for the quantification of 1α, 25-dihydroxy-vitamin D
J. van Helden, R. Weiskirchen
2015Clinical Chemistry and Laboratory Medicine27 citations
Semantic Scholar
Deletion of Perilipin 5 Protects against Hepatic Injury in Nonalcoholic Fatty Liver Disease via Missing Inflammasome Activation
A. Asimakopoulou, K. Engel, N. Gassler, T. Bracht +7 more
2020Cells26 citations Open access
Semantic Scholar
Age-independent anti-Müllerian hormone (AMH) standard deviation scores to estimate ovarian function.
J. van Helden, R. Weiskirchen
2017European Journal of Obstetrics, Gynecology, and Reproductive Biology25 citations
Semantic Scholar
Perilipin 5 deletion protects against nonalcoholic fatty liver disease and hepatocellular carcinoma by modulating lipid metabolism and inflammatory responses
P. Mass-Sanchez, Marinela Krizanac, P. Štancl, Marvin Leopold +11 more
2024Cell Death Discovery24 citations Open access
Semantic Scholar
Multicenter evaluation of the elecsys® anti‐HCV II assay for the diagnosis of hepatitis C virus infection
J. I. Esteban, J. van Helden, F. Alborino, P. Bürgisser +13 more
2013Journal of Medical Virology23 citations
Semantic Scholar
Analytical evaluation of the novel soluble fms-like tyrosine kinase 1 and placental growth factor assays for the diagnosis of preeclampsia.
J. van Helden, R. Weiskirchen
2015Clinical Biochemistry22 citations
Semantic Scholar
Age-specific reference values improve the diagnostic performance of AMH in polycystic ovary syndrome
O. Evliyaoğlu, Mathias Imöhl, R. Weiskirchen, J. van Helden
2020Clinical Chemistry and Laboratory Medicine19 citations
Semantic Scholar
Lipocalin-2 in Fructose-Induced Fatty Liver Disease
J. Lambertz, T. Berger, T. Mak, J. van Helden +1 more
2017Frontiers in Physiology19 citations Open access
Semantic Scholar
Has GnRH a direct role in AMH regulation?
J. van Helden, O. Evliyaoğlu, R. Weiskirchen
2019Clinical Endocrinology18 citations
Semantic Scholar
Relationship between anti-Müllerian hormone and antral follicle count across the menstrual cycle using the Beckman Coulter Access assay in comparison with Gen II manual assay
J. Schiffner, Judith Roos, David Broomhead, J. van Helden +5 more
2017Clinical Chemistry and Laboratory Medicine17 citations
Semantic Scholar
The biotin interference within interference suppressed immunoassays
Payam Kabiri, R. Weiskirchen, J. van Helden
2021Journal of clinical laboratory analysis (Print)15 citations Open access
Semantic Scholar
Performance of hepatitis B assays on the Bayer ADVIA Centaur Immunoassay System.
J. van Helden, G. Denoyel, S. Karwowska, R. Reamer +3 more
2004Clinical Laboratory15 citations
Semantic Scholar
Performance of a new hepatitis C assay on the Bayer ADVIA Centaur Immunoassay System.
G. Denoyel, J. van Helden, R. Bauer, B. Preisel-Simmons
2004Clinical Laboratory15 citations
Semantic Scholar
Mining the Age-Dependent Reference Intervals of B Vitamins from Routine Laboratory Test Results
O. Evliyaoğlu, J. van Helden, M. Imöhl, R. Weiskirchen
2018Laboratoriums Medizin12 citations
Semantic Scholar
European performance evaluations of the ADVIA Centaur infectious disease assays: requirements for performance evaluation according to the European directive on in vitro diagnostics.
F. Dati, G. Denoyel, J. van Helden
2004Journal of Clinical Virology12 citations
Semantic Scholar
Technical and diagnostic performance of a new fully automated immunoassay for the determination of intact fibroblast growth factor 23 (FGF23)
J. van Helden, R. Weiskirchen
2018Scandinavian Journal of Clinical and Laboratory Investigation11 citations
Semantic Scholar
Evaluation of fully automated assays for the detection of Rubella IgM and IgG antibodies by the Elecsys(®) immunoassay system.
J. van Helden, L. Grangeot-Keros, C. Vauloup-Fellous, Renaud Vleminckx +2 more
2014Journal of Virological Methods11 citations
Semantic Scholar
Manipulation of THC Hair Concentrations by Commercially Available Products
M. Bertges, Alexandra Ketikidou, R. Weiskirchen, J. van Helden +2 more
2022Metabolites8 citations Open access
Semantic Scholar
Reference change values of M-protein, free light chain and immunoglobulins in monoclonal gammopathy.
O. Evliyaoğlu, J. van Helden, S. Jaruschewski, M. Imöhl +1 more
2019Clinical Biochemistry8 citations
Semantic Scholar
Cross-method comparison of serum androstenedione measurement with respect to the validation of a new fully automated chemiluminescence immunoassay.
J. van Helden, R. Weiskirchen
2018Clinical Biochemistry8 citations
Semantic Scholar
Vitamin B1 interpretation: Erroneous higher levels in non-anemic populations.
O. Evliyaoğlu, J. van Helden, M. Imöhl, R. Weiskirchen
2019Nutrition (Burbank, Los Angeles County, Calif.)7 citations
Semantic Scholar
Hepatitis-C-Diagnostik: Klinische Evaluierung der HCV-Core-Antigenbestimmung
J. van Helden, R. Weiskirchen
2014Zeitschrift für Gastroenterologie - German Journal of Gastroenterology7 citations
Semantic Scholar
Performance of Elecsys toxo IgG and IgM immunoassays.
J. van Helden
2009Clinical Laboratory7 citations
Semantic Scholar
Performance of Elecsys toxo IgG and IgM immunoassays.
J. van Helden
20097 citations
Semantic Scholar
Performance evaluation of the ADVIA Centaur anti-HBe and HBeAg assays.
J. van Helden, C. Cornely, F. Dati, H. R. Levy +4 more
2008Journal of Clinical Virology7 citations
Semantic Scholar
Performance of a new HIV 1/O/2 assay on the Bayer ADVIA Centaur immunoassay system.
J. van Helden, G. Denoyel, J. Freeman, B. Preisel-Simmons
2004Clinical Laboratory7 citations
Semantic Scholar
Wilson disease — the impact of hyperimmunity on disease activity: A case report
W. Stremmel, T. Longerich, René Liere, V. Vacata +2 more
2021World Journal of Clinical Cases6 citations Open access
Semantic Scholar
Quantification of Short Chain Fatty Acids (acetate, butyrate, propionate) in human blood with ion exclusion chromatography
M. Bertges, J. van Helden, R. Weiskirchen
2021Practical Laboratory Medicine6 citations Open access
Semantic Scholar
Effektive Glykolyse-Inhibierung im Citrat-gepufferten venösen Vollblut und Plasma/Effective inhibition of glycolysis in venous whole blood and plasma samples
E. Yagmur, J. van Helden, A. Koch, Johny Jadem +2 more
20125 citations Open access
Semantic Scholar
Performance evaluation of a fully automated immunoassay for the detection of human growth hormone on the Elecsys immunoassay system.
J. van Helden, D. Hermsen, N. von Ahsen, M. Bidlingmaier
2014Clinical Laboratory4 citations
Semantic Scholar
Effective inhibition of glycolysis in venous whole blood and plasma samples
E. Yagmur, J. van Helden, A. Koch, Johny Jadem +2 more
20124 citations Open access
Semantic Scholar
Experience with the IVDD performance evaluations of the ADVIA Centaur infectious disease assays.
J. van Helden, G. Denoyel
2004Journal of Clinical Virology4 citations
Semantic Scholar
Long Covid Patients Successfully Treated by Means of Heparin-Mediated Extracorporeal LDL Precipitation (H.E.L.P.) Apheresis
B. Jaeger, H. E. Arron, Renata M. Booyens, Christiane Kappert +9 more
2023Infectious Diseases Diagnosis & Treatment3 citations Open access
Semantic Scholar
Investigation of soluble anti-Müllerian hormone receptor type 2 as a biomarker for diagnosis of female fertility disorders.
L. Olivier, O. Evliyaoğlu, R. Weiskirchen, J. van Helden
2019Reproductive Biomedicine Online3 citations
Semantic Scholar
Genetic Characterization of the Immortalized Human Nasopharyngeal Carcinoma Cell Line NPC/HK1
Anna Makowska, U. Kontny, J. van Helden, B. Hildebrandt +2 more
2025Cancer Medicine2 citations Open access
Semantic Scholar
Retarded decline of the share of SARS‐CoV‐2‐positive children in North Rhine‐Westphalia, Germany
Martin Häusler, J. van Helden, M. Kleines
2020Journal of Medical Virology2 citations Open access
Semantic Scholar
Hepatitis C diagnosics: clinical evaluation of the HCV-core antigen determination
J. van Helden
2014BMC Infectious Diseases2 citations Open access
Semantic Scholar
DNA signature and occult blood in stool led to diagnosis of an early-onset metastatic rectal cancer in a young pregnant woman: a case report
J. van Helden, M. Eidens, Jürgen Fuhrländer, Ralf Weiskirchen +1 more
2023Journal of Gastrointestinal Oncology1 citations Open access
Semantic Scholar
Soluble anti-müllerian hormone receptor type 2 (SAMHR2): A new biomarker for diagnosis of fertility disorders
J. van Helden, L. Olivier, O. Evliyaoğlu, R. Weiskirchen
2019Clinica Chimica Acta1 citations
Semantic Scholar
[Diagnostic value of the quantitative HBsAg determination in hepatitis B infections].
J. van Helden, R. Weiskirchen
2016Zeitschrift für Gastroenterologie - German Journal of Gastroenterology1 citations
Semantic Scholar
Diagnostischer Wert der quantitativen HBsAg-Bestimmung bei der Hepatitis B-Infektion
J. van Helden, R. Weiskirchen
2016Zeitschrift für Gastroenterologie - German Journal of Gastroenterology1 citations
Semantic Scholar

Frequent co-authors

Invite them to SciRah by sharing their profile.

R. Weiskirchen×22
Invite
R. Weiskirchen — researcher profile on SciRah
O. Evliyaoğlu×7
Invite
O. Evliyaoğlu — researcher profile on SciRah
G. Denoyel×5
Invite
G. Denoyel — researcher profile on SciRah
E. Yagmur×3
Invite
E. Yagmur — researcher profile on SciRah

×3

Invite

C. Trautwein — researcher profile on SciRah

Invite

F. Alborino — researcher profile on SciRah

B. Preisel-Simmons×3

Invite

B. Preisel-Simmons — researcher profile on SciRah

Invite

M. Imöhl — researcher profile on SciRah

Invite

M. Schott — researcher profile on SciRah

Invite

D. Hermsen — researcher profile on SciRah

M. Broecker-Preuss×2

Invite

M. Broecker-Preuss — researcher profile on SciRah

Invite

M. Casati — researcher profile on SciRah