2026 Friedrich Haag: Biology and Biochemistry Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Biology and Biochemistry	66	8876	8183	646	611	205	12036

Overview

Friedrich Haag is affiliated with Universität Hamburg in Germany. Their research spans primarily the fields of Medicine and Immunology and Microbiology, with a focus on several subfields including Immunology, Infectious Diseases, Physiology, Hepatology, and Epidemiology.

The scientist's recent scholarly contributions include the following papers:

SARS-CoV2-specific Humoral and T-cell Immune Response After Second Vaccination in Liver Cirrhosis and Transplant Patients, 2021, Clinical Gastroenterology and Hepatology
Update of the simplified criteria for autoimmune hepatitis: Evaluation of the methodology for immunoserological testing, 2020, Journal of Hepatology
TIGIT blockade repolarizes AML-associated TIGIT⁺ M2 macrophages to an M1 phenotype and increases CD47-mediated phagocytosis, 2022, Journal for ImmunoTherapy of Cancer
B cell analysis in SARS-CoV-2 versus malaria: Increased frequencies of plasmablasts and atypical memory B cells in COVID-19, 2020, Journal of Leukocyte Biology
Targeting CD38-Expressing Multiple Myeloma and Burkitt Lymphoma Cells In Vitro with Nanobody-Based Chimeric Antigen Receptors (Nb-CARs), 2020, Cells

Frequent co-authors working alongside Friedrich Haag include:

Julian Schulze zur Wiesch
Friedrich Koch-Nolte
Marc Lütgehetmann
Marylyn M. Addo
Ansgar W. Lohse

The preferred venues for their publications are diverse but notably include multiple contributions to the following journals and publication platforms:

Frontiers in Immunology
Clinical Gastroenterology and Hepatology
Cells
Frontiers in Pharmacology
Methods in molecular biology

The main research topics explored by Friedrich Haag encompass:

Adenosine and Purinergic Signaling
SARS-CoV-2 and COVID-19 Research
Immune Cell Function and Interaction
COVID-19 Clinical Research Studies
Liver Diseases and Immunity
Monoclonal and Polyclonal Antibodies Research
Long-Term Effects of COVID-19

Best Publications

Single domain antibodies: promising experimental and therapeutic tools in infection and immunity.

Janusz Wesolowski;Vanina Alzogaray;Jan Reyelt;Mandy Unger

726
Citations
Expansion of HIV-specific T follicular helper cells in chronic HIV infection.

Madelene Lindqvist;Jan van Lunzen;Damien Z. Soghoian;Bjorn D. Kuhl

495
Citations
NAD-Induced T Cell Death: ADP-Ribosylation of Cell Surface Proteins by ART2 Activates the Cytolytic P2X7 Purinoceptor

Michel Seman;Sahil Adriouch;Felix Scheuplein;Christian Krebs

389
Citations
In silico characterization of the family of PARP-like poly(ADP-ribosyl)transferases (pARTs).

Helge Otto;Pedro A Reche;Fernando Bazan;Katharina Dittmar

317
Citations
Cutting edge: a natural P451L mutation in the cytoplasmic domain impairs the function of the mouse P2X7 receptor.

Sahil Adriouch;Claudia Dox;Vivienne Welge;Michel Seman

262
Citations
Extracellular NAD+ shapes the Foxp3+ regulatory T cell compartment through the ART2–P2X7 pathway

Sandra Hubert;Björn Rissiek;Katjana Klages;Jochen Huehn

228
Citations
The family of toxin-related ecto-ADP-ribosyltransferases in humans and the mouse.

Gustavo Glowacki;Rickmer Braren;Kathrin Firner;Marion Nissen

226
Citations
Extracellular NAD and ATP: Partners in immune cell modulation.

Friedrich Haag;Sahil Adriouch;Anette Braß;Caroline Jung

205
Citations
A PKR-like eukaryotic initiation factor 2α kinase from zebrafish contains Z-DNA binding domains instead of dsRNA binding domains

Stefan Rothenburg;Nikolaus Deigendesch;Katharina Dittmar;Friedrich Koch-Nolte

204
Citations
A polymorphic dinucleotide repeat in the rat nucleolin gene forms Z-DNA and inhibits promoter activity.

Stefan Rothenburg;Friedrich Koch-Nolte;Alexander Rich;Friedrich Haag

184
Citations
Expression of insulin-like factor 3 protein in the rat testis during fetal and postnatal development and in relation to cryptorchidism induced by in utero exposure to di (n-Butyl) phthalate.

Chris McKinnell;Richard M. Sharpe;Kim Mahood;Nina Hallmark

177
Citations
ADP-ribosylation of arginine

Sabrina Laing;Mandy Unger;Friedrich Koch-Nolte;Friedrich Haag

169
Citations
Effects of interleukin-2 plus highly active antiretroviral therapy on HIV-1 replication and proviral DNA (COSMIC trial).

Hans-Jürgen Stellbrink;Jan van Lunzen;Michael Westby;Eithne O'Sullivan

166
Citations
NAD+ Released during Inflammation Participates in T Cell Homeostasis by Inducing ART2-Mediated Death of Naive T Cells In Vivo

Sahil Adriouch;Sandra Hubert;Severine Pechberty;Friedrich Koch-Nolte;Friedrich Koch-Nolte

164
Citations
ADP-ribosylation at R125 gates the P2X7 ion channel by presenting a covalent ligand to its nucleotide binding site

Sahil Adriouch;Peter Bannas;Nicole Schwarz;Ralf Fliegert

163
Citations
Single domain antibodies from llama effectively and specifically block T cell ecto-ADP-ribosyltransferase ART2.2 in vivo

Friedrich Koch-Nolte;Jan Reyelt;Britta Schößow;Nicole Schwarz

157
Citations
NAD+ and ATP Released from Injured Cells Induce P2X7-Dependent Shedding of CD62L and Externalization of Phosphatidylserine by Murine T Cells

Felix Scheuplein;Nicole Schwarz;Sahil Adriouch;Christian Krebs

157
Citations
Nanobodies that block gating of the P2X7 ion channel ameliorate inflammation.

Welbeck Danquah;Catherine Meyer-Schwesinger;Björn Rissiek;Carolina Pinto

157
Citations
Compartmentation of NAD+-dependent Signalling

Friedrich Koch-Nolte;Stefan Fischer;Friedrich Haag;Mathias Ziegler

149
Citations
Ecto-ADP-Ribosyltransferases (ARTs): Emerging Actors in Cell Communication and Signaling

Michel Seman;Sahil Adriouch;Friedrich Haag;Friedrich Koch-Nolte

148
Citations