J. Zapf

9.0k citations

103 papers · 7.5k indexed · 2 hit papers · h-index 41

Impact in

Endocrinology, Diabetes and Metabolism top 0.1%
- Growth Hormone and Insulin-like Growth Factors
Cancer Research top 2%
- Cancer, Hypoxia, and Metabolism

Papers in

Endocrinology, Diabetes and Metabolism 69
- Growth Hormone and Insulin-like Growth Factors 62
Cancer Research 18
- Cancer, Hypoxia, and Metabolism 17

Co-authors: E. R. Froesch Christoph Schmid J Schwander H P Guler Henrik Walter M. Waldvogel R Humbel E. Futo
Journals: European Journal of Endocrinology (15 papers)Journal of Clinical Investigation (9 papers)FEBS Letters (9 papers)Proceedings of the National Academy of Sciences (6 papers)The Journal of Clinical Endocrinology & Metabolism (6 papers)
Partner nations: Switzerland Germany United States

In The Last Decade

J. Zapf

103 papers receiving 7.1k citations

Hit Papers

align trajectories log scale

Actions of Insulin-Like Growth Factors 1985 · 984 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

1985 Annual Review of Physiology
1981 Journal of Clinical Investigation

Peers

Countries citing papers authored by J. Zapf

Since Specialization

Citations

This map shows the geographic impact of J. Zapf's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Zapf with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Zapf more than expected).

Fields of papers citing papers by J. Zapf

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. Zapf. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Zapf. The network helps show where J. Zapf may publish in the future.

Co-authorship network

The 25 scholars most cited alongside J. Zapf, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. Zapf Line = papers co-authored together J. Zapf links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Regulation of phosphate (Pi) transport and NaPi-III transporter (Pit-1) mRNA in rat osteoblasts Journal of Endocrinology ·Evangelos Zoidis, Maryse Paulin-Mahieux, Martina Gosteli, J. Zapf, Christoph Schmid	2004	40
2	Effects of insulin--like growth factor-I treatment on the endocrine pancreas of hypophysectomized rats: comparison with growth hormone replacement European Journal of Endocrinology ·Marcela Valdes, Caroline Maake, Elisabeth Eppler, Evangelos Zoidis, M. Reinecke, J. Zapf	2004	7
3	IGF-I in human breast cancer: low differentiation stage is associated with decreased IGF-I content European Journal of Endocrinology ·Elisabeth Eppler, J. Zapf, Marie Pease. Lewis, Sture Falkmer, M. Reinecke	2002	20
4	Effects of IGF-I and -II, IGF binding protein-3 (IGFBP-3), and transforming growth factor-beta (TGF-beta) on growth and apoptosis of human osteosarcoma Saos-2/B-10 cells: lack of IGF-independent IGFBP-3 effects European Journal of Endocrinology ·Christoph Schmid, Maryse Paulin-Mahieux, J. Zapf	2001	16
5	Insulin-Like Growth Factor I Drugs & Aging ·Marc Y. Donath, J. Zapf	1999	6
6	Increased levels of circulating free insulin-like growth factors in patients with non-islet cell tumour hypoglycaemia Diabetologia ·Jan Frystyk, G Grof, J. Zapf, Hans Ørskov	1998	62
7	Insulin-like growth factor I and cardiac performance in heart failure Growth Hormone & IGF Research ·Marc Y. Donath, E. R. Froesch, J. Zapf	1998	10
8	Effects of IGF-I on cardiac growth and expression of mRNAs coding for cardiac proteins after induction of heart hypertrophy in the rat European Journal of Endocrinology ·Yora Dwi Lestari Tarigan, Wolfgang Zierhut, Martina Gosteli, C Hauri, Froesch Er, J. Zapf	1998	14
9	Total and free IGF serum levels European Journal of Endocrinology ·J. Zapf	1997	14
10	Reduced ob mRNA in Hypophysectomised Rats Is Not Restored by Growth Hormone (GH), but further Suppressed by Exogenously Administered Insulin-like Growth Factor (IGF) I Biochemical and Biophysical Research Communications ·Marianne Böni‐Schnetzler, Martina Gosteli, Wolfgang Moritz, E. R. Froesch, J. Zapf	1996	38
11	Intravenously injected insulin-like growth factor (IGF) I/IGF binding protein-3 complex exerts insulin-like effects in hypophysectomized, but not in normal rats. Journal of Clinical Investigation ·J. Zapf, C Hauri, E. Futo, Mehboob A. Hussain, Jonas Rutishauser, Christopher A. Maack, E. R. Froesch	1995	58
12	Expression, effects, and fate of IGFBP-5 are different in normal and malignant osteoblastic cells PubMed ·Christoph Schmid, I. Schläpfer, Martina Gosteli, E. R. Froesch, J. Zapf	1995	16
13	Tumour‐induced hypoglycaemia due to ‘big’ IGF–II Journal of Internal Medicine ·Gitte Strauss, L. Christensen, J. Zapf	1994	7
14	Posttranslational regulation of insulin-like growth factor binding protein-4 in normal and transformed human fibroblasts. Insulin-like growth factor dependence and biological studies. Journal of Clinical Investigation ·Cheryl A. Conover, Michael Kiefer, J. Zapf	1993	153
15	IGFs: function and clinical importance 3 Role of insulin‐like growth factor (IGF) II and IGF binding proteins in extrapancreatic tumour hypoglycaemia Journal of Internal Medicine ·J. Zapf	1993	36
16	Production of carrier proteins for insulin‐like growth factors (IGFs) by rat osteoblastic cells Regulation by IGF I and cortisol FEBS Letters ·Christoph Schmid, J. Zapf, E. R. Froesch	1989	52
17	Insulin-Like Growth Factor in Pregnancy: Studies in a Growth Hormone-Deficient Dwarf The Journal of Clinical Endocrinology & Metabolism ·Thomas J. Merimee, J. Zapf, E. R. Froesch	1982	32
18	Purification Procedures for NSILA-S PubMed ·E. R. Froesch, I Nicolas, R Heimann, J. Zapf, R Humbel, Egi Winovla Erman	1975	13
19	NSILA-S, Physiologic and Pharmacologic Significance as an Insulinlike Hormone and as a Growth-Promoting Hormone PubMed ·E. R. Froesch, I Nicolas, R Heimann, J. Frank Brown, J. Zapf	1975	9
20	Protein kinases from rat skeletal muscle: Evidence for six different fractions of the enzyme FEBS Letters ·J. Zapf, E. R. Froesch	1972	4

About J. Zapf

J. Zapf is a scholar working on Endocrinology, Diabetes and Metabolism, Cancer Research, Molecular Biology, Genetics and Clinical Biochemistry, having authored 103 papers that have together received 7.5k indexed citations. Recurring topics across this work include Growth Hormone and Insulin-like Growth Factors (62 papers), Metabolism, Diabetes, and Cancer (36 papers), Cancer, Hypoxia, and Metabolism (17 papers), Pancreatic function and diabetes (13 papers), Diet and metabolism studies (8 papers), Digestive system and related health (8 papers), Adipose Tissue and Metabolism (8 papers) and Muscle metabolism and nutrition (6 papers). The work is most often cited by research in Endocrinology, Diabetes and Metabolism (5.0k citations), Cancer Research (1.0k citations), Molecular Biology (3.3k citations), Genetics (1.3k citations) and Physiology (971 citations). J. Zapf has collaborated with scholars based in Switzerland, Germany and United States. Frequent co-authors include E. R. Froesch, E. R. Froesch, Christoph Schmid, J Schwander, H P Guler, Henrik Walter, M. Waldvogel, R Humbel, E. Futo and Thomas J. Merimee. Their work appears in journals such as European Journal of Endocrinology, Journal of Clinical Investigation, FEBS Letters, Proceedings of the National Academy of Sciences and The Journal of Clinical Endocrinology & Metabolism.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact