Sven Cichon

Common variants conferring risk of schizophrenia (2009)

Stefansson, Hreinn, Ophoff, Roel A, Steinberg, Stacy, Andreassen, Ole A, Cichon, Sven, Rujescu, Dan, ...

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Disruption of the neurexin 1 gene is associated with schizophrenia (2009)

Rujescu, Dan, Ingason, Andres, Cichon, Sven, Pietiläinen, Olli P H, Barnes, Michael R, Toulopoulou, Timothea, ...

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Disruption of the neurexin 1 gene is associated with schizophrenia (2009)

Rujescu, Dan, Ingason, Andres, Cichon, Sven, Pietiläinen, Olli P.H., Barnes, Michael R., Toulopoulou, Timothea, ...

Deletions within the neurexin 1 gene (NRXN1; 2p16.3) are associated with autism and have also been reported in two families with schizophrenia. We examined NRXN1, and the closely related NRXN2 and...

The DISC locus and schizophrenia: evidence from an association study in a central European sample and from a meta-analysis across different European populations (2009)

Schumacher, Johannes, Laje, Gonzalo, Jamra, Rami Abou, Becker, Tim, Mühleisen, Thomas W., Vasilescu, Catalina, ...

Association studies, as well as the initial translocation family study, identified the gene Disrupted-In-Schizophrenia-1 (DISC1) as a risk factor for schizophrenia. DISC1 encodes a multifunctional...

A genome-wide association study for late-onset Alzheimer's disease using DNA pooling (2008)

Abraham, Richard, Moskvina, Valentina, Sims, Rebecca, Hollingworth, Paul, Morgan, Angharad, Georgieva, Lyudmila, ...

Abstract Background Late-onset Alzheimer's disease (LOAD) is an age related neurodegenerative disease with a high prevalence that places major demands on healthcare resources in societies with...

Large recurrent microdeletions associated with schizophrenia (2008)

Stefansson, Hreinn, Rujescu, Dan, Cichon, Sven, Pietiläinen, Olli P H, Ingason, Andres, Steinberg, Stacy, ...

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G72 and its association with major depression and neuroticism in large population-based groups from Germany (2008)

Rietschel, Marcella, Beckmann, Lars, Strohmeier, Jana, Georgi, Alexander, Karpushova, Anna, Schirmbeck, Frederike, ...

OBJECTIVE: G72 is among the most frequently replicated vulnerability genes for schizophrenia and bipolar disorder. The authors previously found identical haplotypes of markers M23 and M24 to be...

Identification of loci associated with schizophrenia by genome-wide association and follow-up (2008)

Donovan, Michael C., Craddock, Nicholas, Norton, Nadine, Williams, Hywel, Peirce, Timothy, Moskvina, Valentina, ...

We carried out a genome-wide association study of schizophrenia (479 cases, 2,937 controls) and tested loci with P < 10-5 in up to 16,726 additional subjects. Of 12 loci followed up, 3 had strong...

Brain-specific tryptophan hydroxylase 2 (TPH2): a functional Pro206Ser substitution and variation in the 5'-region are associated with bipolar affective disorder (2008)

Cichon, Sven, Winge, Ingeborg, Mattheisen, Manuel, Georgi, Alexander, Karpushova, Anna, Freudenberg, Jan, ...

The neurotransmitter serotonin [5-hydroxytryptamine (5-HT)] controls a broad range of biological functions that are disturbed in affective disorder. In the brain, 5-HT production is controlled by...

Genome-wide scan for genes involved in bipolar affective disorder in 70 European families ascertained through a bipolar type I early-onset proband: supportive evidence for linkage at 3p14. (2006)

Etain, Bruno, Mathieu, Flavie, Rietschel, Marcella, Maier, Wolfgang, Albus, Margot, Mckeon, Patrick, ...

Preliminary studies suggested that age at onset (AAO) may help to define homogeneous bipolar affective disorder (BPAD) subtypes. This candidate symptom approach might be useful to identify...

Genome-wide scan for genes involved in bipolar affective disorder in 70 European families ascertained through a bipolar type I early-onset proband: supportive evidence for linkage at 3p14. (2006)

Etain, Bruno, Mathieu, Flavie, Rietschel, Marcella, Maier, Wolfgang, Albus, Margot, Mckeon, Patrick, ...

Preliminary studies suggested that age at onset (AAO) may help to define homogeneous bipolar affective disorder (BPAD) subtypes. This candidate symptom approach might be useful to identify...

Genome-wide scan for genes involved in bipolar affective disorder in 70 European families ascertained through a bipolar type I early-onset proband: supportive evidence for linkage at 3p14. (2006)

Etain, Bruno, Mathieu, Flavie, Rietschel, Marcella, Maier, Wolfgang, Albus, Margot, Mckeon, Patrick, ...

Preliminary studies suggested that age at onset (AAO) may help to define homogeneous bipolar affective disorder (BPAD) subtypes. This candidate symptom approach might be useful to identify...

Genes and Schizophrenia: The G72/G30 Gene Locus in Psychiatric Disorders: A Challenge to Diagnostic Boundaries? (2006)

Abou Jamra, Rami, Schmael, Christine, Cichon, Sven, Rietschel, Marcella, Schumacher, Johannes, Nöthen, Markus M.

In follow-up from evidence obtained in linkage studies, systematic linkage disequilibrium mapping within chromosomal region 13q33 has led to the identification of a schizophrenia susceptibility locus...

The G72/G30 Gene Locus in Psychiatric Disorders: A Challenge to Diagnostic Boundaries? (2006)

Abou Jamra, Rami, Schmael, Christine, Cichon, Sven, Rietschel, Marcella, Schumacher, Johannes, Nöthen, Markus M.

In follow-up from evidence obtained in linkage studies, systematic linkage disequilibrium mapping within chromosomal region 13q33 has led to the identification of a schizophrenia susceptibility locus...

Monoamine related functional gene variants and relationships to monoamine metabolite concentrations in CSF of healthy volunteers (2004)

Jönsson, Erik G, Bah, Jessica, Melke, Jonas, Abou Jamra, Rami, Schumacher, Johannes, Westberg, Lars, ...

Abstract Background Concentrations of monoamine metabolites in human cerebrospinal fluid (CSF) have been used extensively as indirect estimates of monoamine turnover in the brain. CSF monoamine...

BMC Psychiatry BioMed Central (2004)

Erik G Jönsson, Jessica Bah, Jonas Melke, Rami Abou Jamra, Johannes Schumacher, Lars Westberg, ...

Research article Monoamine related functional gene variants and relationships to monoamine metabolite concentrations in CSF of healthy volunteers

Single Nucleotide Variation Analysis in 65 Candidate Genes for CNS Disorders in a Representative Sample of the European Population (2003)

Freudenberg-Hua, Yun, Freudenberg, Jan, Kluck, Nadine, Cichon, Sven, Propping, Peter, Nöthen, Markus M.

The detailed investigation of variation in functionally important regions of the human genome is expected to promote understanding of genetically complex diseases. We resequenced 65 candidate genes...

Can long-range microsatellite data be used to predict short-range linkage disequilibrium? (2002)

Schulze, Thomas G., Chen, Yu-Sheng, Akula, Nirmala, Hennessy, Kathleen, Badner, Judith A., McInnis, Melvin G., ...

The distribution of linkage disequilibrium (LD) across the genome is highly complex. Little is known about the relationship between long-range and short-range LD in a genomic region. We assessed...

A genome screen for genes predisposing to bipolar affective disorder detects a new susceptibility locus on 8q (2001)

Cichon, Sven, Schumacher, Johannes, Müller, Daniel J., Hürter, Martina, Windemuth, Christine, Strauch, Konstantin, ...

Bipolar affective disorder (BPAD), also known as manic depressive illness, is a severe psychiatric disorder characterized by episodes of mania and depression. It has a lifetime prevalence of...

Human dopamine D4 receptor gene: frequent occurrence of a null allele and observation of homozygosity (1994)

Nöthen, Markus M., Cichon, Sven, Hemmer, Susanne, Hebebrand, Johannes, Remschmidt, Helmut, Lehmkuhl, Gerd, ...

We report a null mutation in the first exon of the human dopamlne D4 receptor (DRD4) gene. The mutation Is predicted to result in a truncated non-functional protein and is the first natural nonsense...

Single Nucleotide Variation Analysis in 65 Candidate Genes for CNS Disorders in a Representative Sample of the European Population

Freudenberg-Hua, Yun, Freudenberg, Jan, Kluck, Nadine, Cichon, Sven, Propping, Peter, Nöthen, Markus M.

The detailed investigation of variation in functionally important regions of the human genome is expected to promote understanding of genetically complex diseases. We resequenced 65 candidate genes...

Localization of a Gene for Syndactyly Type 1 to Chromosome 2q34-q36

Bosse, Kristin, Betz, Regina C., Lee, Young-Ae, Wienker, Thomas F., Reis, André, Kleen, Heidi, ...

Syndactyly type 1 (SD1) is an autosomal dominant limb malformation characterized in its classical form by complete or partial webbing between the third and fourth fingers and/or the second and third...

Combined Analysis from Eleven Linkage Studies of Bipolar Disorder Provides Strong Evidence of Susceptibility Loci on Chromosomes 6q and 8q

McQueen, Matthew B., Devlin, B., Faraone, Stephen V., Nimgaonkar, Vishwajit L., Sklar, Pamela, Smoller, Jordan W., ...

Several independent studies and meta-analyses aimed at identifying genomic regions linked to bipolar disorder (BP) have failed to find clear and consistent evidence of linkage regions. Our hypothesis...

Strong Genetic Evidence of DCDC2 as a Susceptibility Gene for Dyslexia

Schumacher, Johannes, Anthoni, Heidi, Dahdouh, Faten, König, Inke R., Hillmer, Axel M., Kluck, Nadine, ...

We searched for linkage disequilibrium (LD) in 137 triads with dyslexia, using markers that span the most-replicated dyslexia susceptibility region on 6p21-p22, and found association between the...

Single Nucleotide Variation Analysis in 65 Candidate Genes for CNS Disorders in a Representative Sample of the European Population

Freudenberg-Hua, Yun, Freudenberg, Jan, Kluck, Nadine, Cichon, Sven, Propping, Peter, Nöthen, Markus M.

The detailed investigation of variation in functionally important regions of the human genome is expected to promote understanding of genetically complex diseases. We resequenced 65 candidate genes...

The DTNBP1 (Dysbindin) Gene Contributes to Schizophrenia, Depending on Family History of the Disease

Van Den Bogaert, Ann, Schumacher, Johannes, Schulze, Thomas G., Otte, Andreas C., Ohlraun, Stephanie, Kovalenko, Svetlana, ...

We have investigated the gene for dystrobrevin-binding protein 1 (DTNBP1), or dysbindin, which has been strongly suggested as a positional candidate gene for schizophrenia, in three samples of...

Genome Scan Meta-Analysis of Schizophrenia and Bipolar Disorder, Part III: Bipolar Disorder

Segurado, Ricardo, Detera-Wadleigh, Sevilla D., Levinson, Douglas F., Lewis, Cathryn M., Gill, Michael, ...

Genome scans of bipolar disorder (BPD) have not produced consistent evidence for linkage. The rank-based genome scan meta-analysis (GSMA) method was applied to 18 BPD genome scan data sets in an...

Genetic Variation in the Human Androgen Receptor Gene Is the Major Determinant of Common Early-Onset Androgenetic Alopecia

Hillmer, Axel M., Hanneken, Sandra, Ritzmann, Sibylle, Becker, Tim, Freudenberg, Jan, Brockschmidt, Felix F., ...

Androgenetic alopecia (AGA), or male-pattern baldness, is the most common form of hair loss. Its pathogenesis is androgen dependent, and genetic predisposition is the major requirement for the...

Combined Analysis from Eleven Linkage Studies of Bipolar Disorder Provides Strong Evidence of Susceptibility Loci on Chromosomes 6q and 8q

McQueen, Matthew B., Devlin, B., Faraone, Stephen V., Nimgaonkar, Vishwajit L., Sklar, Pamela, Smoller, Jordan W., ...

Several independent studies and meta-analyses aimed at identifying genomic regions linked to bipolar disorder (BP) have failed to find clear and consistent evidence of linkage regions. Our hypothesis...

Localization of a Gene for Syndactyly Type 1 to Chromosome 2q34-q36

Bosse, Kristin, Betz, Regina C., Lee, Young-Ae, Wienker, Thomas F., Reis, André, Kleen, Heidi, ...

Syndactyly type 1 (SD1) is an autosomal dominant limb malformation characterized in its classical form by complete or partial webbing between the third and fourth fingers and/or the second and third...

Strong Genetic Evidence of DCDC2 as a Susceptibility Gene for Dyslexia

Schumacher, Johannes, Anthoni, Heidi, Dahdouh, Faten, König, Inke R., Hillmer, Axel M., Kluck, Nadine, ...

We searched for linkage disequilibrium (LD) in 137 triads with dyslexia, using markers that span the most-replicated dyslexia susceptibility region on 6p21-p22, and found association between the...

Genes and Schizophrenia: The G72/G30 Gene Locus in Psychiatric Disorders: A Challenge to Diagnostic Boundaries?

Abou Jamra, Rami, Schmael, Christine, Cichon, Sven, Rietschel, Marcella, Schumacher, Johannes, Nöthen, Markus M.

In follow-up from evidence obtained in linkage studies, systematic linkage disequilibrium mapping within chromosomal region 13q33 has led to the identification of a schizophrenia susceptibility locus...