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J. Klammt · SciRah

Researcher profile · Semantic Scholar

J. Klammt

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J. Klammt — researcher profile on SciRah

h-index: 21
Works: 96
Citations: 2,152

Most-cited papers

IGF-I receptor mutations resulting in intrauterine and postnatal growth retardation.
M. Abuzzahab, A. Schneider, A. Goddard, F. Grigorescu +11 more
2003New England Journal of Medicine631 citations Open access
Semantic Scholar
Molecular and clinical spectrum of type I plasminogen deficiency: A series of 50 patients.
K. Tefs, M. Gueorguieva, J. Klammt, C. Allen +29 more
2006Blood157 citations Open access
Semantic Scholar
IGF signaling defects as causes of growth failure and IUGR.
J. Klammt, R. Pfäffle, H. Werner, W. Kiess
2008Trends in endocrinology and metabolism101 citations
Semantic Scholar
Pituitary transcription factors in the aetiology of combined pituitary hormone deficiency.
R. Pfäffle, J. Klammt
2011Best practice & research. Clinical endocrinology & metabolism100 citations
Semantic Scholar
Dominant-negative STAT5B mutations cause growth hormone insensitivity with short stature and mild immune dysregulation
J. Klammt, D. Neumann, E. Gevers, Shayne F. Andrew +12 more
2018Nature Communications98 citations Open access
Semantic Scholar
IGF1R mutations as cause of SGA.
J. Klammt, W. Kiess, R. Pfäffle
2011Best practice & research. Clinical endocrinology & metabolism96 citations
Semantic Scholar
Heterozygous mutation within a kinase-conserved motif of the insulin-like growth factor I receptor causes intrauterine and postnatal growth retardation.
T. Kruis, J. Klammt, A. Galli-Tsinopoulou, Tillmann Wallborn +7 more
2010Journal of Clinical Endocrinology and Metabolism85 citations
Semantic Scholar
A heterozygous mutation of the insulin-like growth factor-I receptor causes retention of the nascent protein in the endoplasmic reticulum and results in intrauterine and postnatal growth retardation.
Tillmann Wallborn, Stefan Wüller, J. Klammt, T. Kruis +7 more
2010Journal of Clinical Endocrinology and Metabolism85 citations Open access
Semantic Scholar
Clinical and functional characteristics of the human Arg59Ter insulin-like growth factor i receptor (IGF1R) mutation: implications for a gene dosage effect of the human IGF1R.
K. Raile, J. Klammt, A. Schneider, A. Keller +6 more
2006Journal of Clinical Endocrinology and Metabolism80 citations
Semantic Scholar
A Role for Leptin in Sexual Maturation and Puberty?
W. Kiess, A. Reich, K. Meyer, A. Glasow +5 more
1999Hormone Research in Paediatrics80 citations
Semantic Scholar
Identification of three novel plasminogen (PLG) gene mutations in a series of 23 patients with low PLG activity
J. Klammt, L. Kobelt, D. Aktaş, İ. Durak +17 more
2010Thrombosis and Haemostasis56 citations
Semantic Scholar
Body Fat Mass, Leptin and Puberty
W. Kiess, G. Müller, A. Galler, A. Reich +3 more
2000Journal of Pediatric Endocrinology & Metabolism (JPEM)52 citations
Semantic Scholar
Homozygous mutation of the IGF1 receptor gene in a patient with severe pre- and postnatal growth failure and congenital malformations.
M. Gannagé-Yared, J. Klammt, E. Chouery, S. Corbani +5 more
2012European Journal of Endocrinology51 citations Open access
Semantic Scholar
Functional and clinical relevance of novel and known PCSK1 variants for childhood obesity and glucose metabolism
D. Löffler, S. Behrendt, J. Creemers, J. Klammt +5 more
2016Molecular Metabolism40 citations Open access
Semantic Scholar
Functional characterization of a heterozygous GLI2 missense mutation in patients with multiple pituitary hormone deficiency.
G. Flemming, J. Klammt, G. Ambler, Y. Bao +8 more
2013Journal of Clinical Endocrinology and Metabolism33 citations Open access
Semantic Scholar
Screening a large pediatric cohort with GH deficiency for mutations in genes regulating pituitary development and GH secretion: Frequencies, phenotypes and growth outcomes
W. Blum, J. Klammt, S. Amselem, Heike Pfäffle +13 more
2018EBioMedicine30 citations Open access
Semantic Scholar
Obesity in childhood and adolescence: a review in the interface between adipocyte physiology and clinical challenges.
A. Körner, S. Blüher, T. Kapellen, A. Garten +3 more
2005HORMONES30 citations Open access
Semantic Scholar
Novel Mutations in the Asparagine Synthetase Gene (ASNS) Associated With Microcephaly
D. Schleinitz, Anna Seidel, R. Stassart, J. Klammt +10 more
2018Frontiers in Genetics25 citations Open access
Semantic Scholar
Combined pituitary hormone deficiency due to gross deletions in the POU1F1 (PIT-1) and PROP1 genes
Eleonore Bertko, J. Klammt, P. Dusatkova, M. Bahçeci +11 more
2017Journal of Human Genetics24 citations Open access
Semantic Scholar
Heterozygous Mutation within a Kinase-Conserved Motif of the Insulin-Like Growth Factor I Receptor Causes Intrauterine and Postnatal Growth Retardation
T. Kruis, J. Klammt, A. Galli-Tsinopoulou, Tillmann Wallborn +7 more
201022 citations Open access
Semantic Scholar
A Comprehensive Cohort Analysis Comparing Growth and GH Therapy Response in IGF1R Mutation Carriers and SGA Children.
E. Göpel, Denise Rockstroh, Heike Pfäffle, Marina Schlicke +12 more
2020Journal of Clinical Endocrinology and Metabolism21 citations Open access
Semantic Scholar
Identification of SLC20A1 and SLC15A4 among other genes as potential risk factors for combined pituitary hormone deficiency
Franziska Simm, A. Griesbeck, D. Choukair, B. Weiß +9 more
2017Genetics in Medicine17 citations Open access
Semantic Scholar
Novel heterozygous IGF1R mutation in two brothers with developing impaired glucose tolerance
S. Burkhardt, J. Gesing, T. Kapellen, P. Kovacs +6 more
2015Journal of Pediatric Endocrinology & Metabolism (JPEM)16 citations
Semantic Scholar
Clinical and Functional Characterization of a Patient Carrying a Compound Heterozygous Pericentrin Mutation and a Heterozygous IGF1 Receptor Mutation
Eva Müller, D. Dunstheimer, J. Klammt, D. Friebe +7 more
2012PLoS ONE16 citations Open access
Semantic Scholar
[Suitability of peracetic acid for root canal disinfection].
I. Kühlfluck, J. Klammt
1980Stomatologie der DDR16 citations
Semantic Scholar
Downstream insulin-like growth factor.
R. Pfäffle, W. Kiess, J. Klammt
2012Endocrine Development14 citations
Semantic Scholar
Comparative analysis of the signaling capabilities of the insulin receptor-related receptor.
J. Klammt, A. Garten, Anja Barnikol-Oettler, A. Beck-Sickinger +1 more
2005Biochemical and Biophysical Research Communications - BBRC13 citations
Semantic Scholar
Physiology of obesity in childhood and adolescence
W. Kiess, S. Blüher, T. Kapellen, A. Garten +3 more
200612 citations
Semantic Scholar
Clinical Examples of Disturbed IGF Signaling: Intrauterine and Postnatal Growth Retardation due to Mutations of the Insulin-Like Growth Factor I Receptor (IGF-IR) Gene
W. Kiess, J. Kratzsch, E. Keller, A. Schneider +6 more
2005Reviews in Endocrine & Metabolic Disorders12 citations
Semantic Scholar
Alu-Mediated Recombination Defect in IGF1R: Haploinsufficiency in a Patient with Short Stature
Eva-Maria Harmel, G. Binder, Anja Barnikol-Oettler, J. Caliebe +9 more
2013Hormone Research in Paediatrics11 citations
Semantic Scholar
Homozygous mutation of the IGF 1 receptor gene in a patient with severe pre-and postnatal growth failure and congenital malformations
M. Gannagé-Yared, J. Klammt, E. Chouery, S. Corbani +5 more
201211 citations
Semantic Scholar
The Interaction of Glucocorticoids and Progesterone Distinctively Affects Epithelial Sodium Transport
C. Schmidt, J. Klammt, U. Thome, M. Laube
2014Lung10 citations
Semantic Scholar
Mutational analysis of the interaction between insulin receptor and IGF-I receptor with c-Crk and Crk-L in a yeast two-hybrid system.
J. Klammt, Anja Barnikol-Oettler, W. Kiess
2004Biochemical and Biophysical Research Communications - BBRC10 citations
Semantic Scholar
Genetic analyses of bone morphogenetic protein 2, 4 and 7 in congenital combined pituitary hormone deficiency
Jana Breitfeld, Susanne Martens, J. Klammt, Marina Schlicke +8 more
2013BMC Endocrine Disorders9 citations Open access
Semantic Scholar
Genetic Analysis of GHR Should Contain Sequencing of All Coding Exons and Specific Intron Sequences, and Screening for Exon Deletions
M. J. Walenkamp, J. Klammt, E. Feigerlová, M. Losekoot +4 more
2013Hormone Research in Paediatrics9 citations
Semantic Scholar
IGF1R Gene Alterations in Children Born Small for Gestitional Age (SGA)
A. Janchevska, M. Krstevska-Konstantinova, Heike Pfäffle, Marina Schlicke +8 more
2018Open Access Macedonian Journal of Medical Sciences8 citations Open access
Semantic Scholar
Severe Isolated Growth Hormone Deficiency and Myopathy in Two Brothers With RNPC3 Mutation
Z. Gucev, M. Polenaković, V. Tasic, Y. Le Bouc +3 more
20158 citations
Semantic Scholar
[The role of fibrinolysis in the pathogenesis of alveolitis after tooth extraction. Preliminary report].
R. Masuck, J. Klammt
1991Deutsche Stomatologie8 citations
Semantic Scholar
A Novel GH1 Mutation in a Family with Isolated Growth Hormone Deficiency Type II
Z. Gucev, V. Tasic, L. Saranac, H. Stobbe +3 more
2011Hormone Research in Paediatrics7 citations
Semantic Scholar
Clinical and biochemical consequences of an intragenic growth hormone receptor (GHR) deletion in a large Chinese pedigree
J. Klammt, Shui-Xian Shen, W. Kiess, J. Kratzsch +4 more
2015Clinical Endocrinology6 citations
Semantic Scholar
Correlation of type I insulin-like growth factor receptor (IGF-I-R) and insulin receptor-related receptor (IRR) messenger RNA levels in tumor cell lines from pediatric tumors of neuronal origin.
M. Elmlinger, U. Rauschnabel, E. Koscielniak, Jörg Haenze +4 more
1999Regulatory Peptides6 citations
Semantic Scholar
Copy number variations in “classical” obesity candidate genes are not frequently associated with severe early-onset obesity in children
Jan Windholz, P. Kovacs, Marina Schlicke, Christin Franke +8 more
2017Journal of Pediatric Endocrinology & Metabolism (JPEM)3 citations Open access
Semantic Scholar
Type I plasminogen deficiency with unexpected clinical aspects: Could be more than coexistence?
Ş. Altıner, J. Klammt, M. Bernhard, V. Schuster +1 more
20173 citations Open access
Semantic Scholar
Activation of Erk1/2 phosphorylation but not of Akt/Pkb through an inducible CSF1R/IRR-receptor construct in INS-1E β-cells
R. Vogel, A. Garten, J. Klammt, Anja Barnikol-Oettler +1 more
2010Archives of Physiology and Biochemistry3 citations
Semantic Scholar
Clinical examples of disturbed insulin-like growth factor signaling: intrauterine and postnatal growth retardation because of mutations of the insulin-like growth factor 1 receptor gene
J. Klammt, J. Kratzsch, B. Seidel, W. Kiess +2 more
20063 citations
Semantic Scholar
[Risk of alveolitis after dental extraction].
J. Klammt, A. Gänsicke, W. Gänsicke, J. Kunkel +5 more
1985Stomatologie der DDR3 citations
Semantic Scholar
Severe Short Stature and GH Insensitivity Due to a De Novo Heterozygous STAT5B Missense Mutation
J. Klammt, D. Neumann, Shayne F. Andrew, M. Drahošová +5 more
20142 citations
Semantic Scholar
From GHRH to IGF-1 and downstream: clinical phenotypes and biological mechanisms.
R. Pfäffle, Wieland Kies, J. Klammt
2011Pediatric Endocrinology Reviews: diabetes, nutrition, metabolism2 citations
Semantic Scholar
Evidence against a direct effect of leptin on insulin-like growth factor-I (IGF-I), IGFBP-2 and IGF-I receptor expression in human SK-N-MC neuroepithelioma cells.
W. Kiess, J. Klammt, J. Hänze, W. Blum +3 more
2005Regulatory Peptides2 citations
Semantic Scholar
[Relation between functional disorders of the temporomandibular joint and the cervical spine].
V. K. Bernhöft, J. Klammt
1988Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt2 citations
Semantic Scholar

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R. Pfäffle×29
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R. Pfäffle — researcher profile on SciRah
W. Kiess×20
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J. Kratzsch×13
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A. Körner — researcher profile on SciRah

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