Teppo Varilo

Genome-wide association analysis of metabolic traits in a birth cohort from a founder population (2009)

Sabatti, Chiara, Service, Susan K., Hartikainen, Anna-Liisa, Pouta, Anneli, Ripatti, Samuli, Brodsky, Jae, ...

Genome-wide association studies (GWAS) of longitudinal birth cohorts enable joint investigation of environmental and genetic influences on complex traits. We report GWAS results for nine quantitative...

Linkage and linkage disequilibrium scan for autism loci in an extended pedigree from Finland (2009)

Kilpinen, Helena, Ylisaukko-oja, Tero, Rehnström, Karola, Gaál, Emilia, Turunen, Joni A., Kempas, Elli, ...

Population isolates, such as Finland, have proved beneficial in mapping rare causative genetic variants due to a limited number of founders resulting in reduced genetic heterogeneity and extensive...

Letter. Magnitude and distribution of linkage disequilibrium in population isolates and implications for genome-wide association studies (2006)

Service, Susan, DeYoung, Joseph, Karayiorgou, Maria, Roos, J. Louw, Pretorious, Herman, Bedoya, Gabriel, ...

The genome-wide distribution of linkage disequilibrium (LD) determines the strategy for selecting markers for association studies, but it varies between populations. We assayed LD in large samples...

Magnitude and distribution of linkage disequilibrium in population isolates and implications for genome-wide association studies (2006)

Service, Susan, DeYoung, Joseph, Karayiorgou, Maria, Roos, J. Louw, Pretorious, Herman, Bedoya, Gabriel, ...

The genome-wide distribution of linkage disequilibrium (LD) determines the strategy for selecting markers for association studies, but it varies between populations. We assayed LD in large samples...

Search for cognitive trait components of schizophrenia reveals a locus for verbal learning and memory on 4q and for visual working memory on 2q (2004)

Paunio, Tiina, Tuulio-Henriksson, Annamari, Hiekkalinna, Tero, Perola, Markus, Varilo, Teppo, Partonen, Timo, ...

Research to identify predisposing genes for complex diseases relying solely on clinical diagnosis is probably not ideal. Here, we analysed genomewide data for 168 schizophrenia families using...

Search for cognitive trait components of schizophrenia reveals a locus for verbal learning and memory on 4q and for visual working memory on 2q (2004)

Paunio, Tiina, Tuulio-Henriksson, Annamari, Hiekkalinna, Tero, Perola, Markus, Varilo, Teppo, Partonen, Timo, ...

Research to identify predisposing genes for complex diseases relying solely on clinical diagnosis is probably not ideal. Here, we analyzed genome-wide data for 168 schizophrenia families using...

Search for cognitive trait components of schizophrenia reveals a locus for verbal learning and memory on 4q and for visual working memory on 2q (2004)

Paunio, Tiina, Tuulio-Henriksson, Annamari, Hiekkalinna, Tero, Perola, Markus, Varilo, Teppo, Partonen, Timo, ...

Research to identify predisposing genes for complex diseases relying solely on clinical diagnosis is probably not ideal. Here, we analysed genomewide data for 168 schizophrenia families using...

Haplotype Transmission Analysis Provides Evidence of Association for DISC1 to Schizophrenia and Suggests Sex-Dependent Effects (2003)

Hennah, William, Varilo, Teppo, Kestilä, Marjo, Paunio, Tiina, Arajärvi, Ritva, Haukka, Jari, ...

We have previously reported a linkage peak on 1q42 in a Finnish schizophrenia sample. In this study we genotyped 28 single nucleotide polymorphisms (SNPs) from 1q42 covering the three candidate genes...

Haplotype transmission analysis provides evidence of association for DISC1 to schizophrenia and suggests sex-dependent effects (2003)

Hennah, William, Varilo, Teppo, Kestilä, Marjo, Paunio, Tiina, Arajärvi, Ritva, Haukka, Jari, ...

We have previously reported a linkage peak on 1q42 in a Finnish schizophrenia sample. In this study we genotyped 28 single nucleotide polymorphisms (SNPs) from 1q42 covering the three candidate genes...

Haplotype Transmission Analysis Provides Evidence of Association for DISC1 to Schizophrenia and Suggests Sex-Dependent Effects (2003)

Hennah, William, Varilo, Teppo, Kestilä, Marjo, Paunio, Tiina, Arajärvi, Ritva, Haukka, Jari, ...

We have previously reported a linkage peak on 1q42 in a Finnish schizophrenia sample. In this study we genotyped 28 single nucleotide polymorphisms (SNPs) from 1q42 covering the three candidate genes...

Chromosome 1 loci in Finnish schizophrenia families (2001)

Ekelund, Jesper, Hovatta, Iiris, Parker, Alex, Paunio, Tiina, Varilo, Teppo, Martin, Rory, ...

We have earlier reported evidence for linkage to two regions on chromosome 1q32–q42 in schizophrenia families collected for two separate studies in Finland. Here we report the results of a fine...

Genome-wide scan for schizophrenia in the Finnish population: evidence for a locus on chromosome 7q22 (2000)

Ekelund, Jesper, Lichtermann, Dirk, Hovatta, Iiris, Ellonen, Pekka, Suvisaari, Jaana, Terwilliger, Joseph D., ...

We report the results of a four-stage genome-wide scan in a schizophrenia study sample consisting of 134 affected sib-pairs collected in Finland. In stage I we genotyped 370 markers from the Weber 6...

Molecular genetics of the Finnishdisease heritage (1999)

Peltonen, Leena, Jalanko, Anu, Varilo, Teppo

Finland, located at the edge of the inhabitable world,is one of the best-studied genetic isolates. The characteristicfeatures of population isolates—founder effect, geneticdrift and isolation—have,...

Assignment of the Locus for Hydrolethalus Syndrome to a Highly Restricted Region on 11q23-25

Visapää, Ilona, Salonen, Riitta, Varilo, Teppo, Paavola, Paulina, Peltonen, Leena

Hydrolethalus syndrome is a recessively inherited lethal malformation syndrome characterized by hydrocephaly with absent midline structures of the brain, micrognathia, polydactyly, and several other...

A Genomewide Screen for Schizophrenia Genes in an Isolated Finnish Subpopulation, Suggesting Multiple Susceptibility Loci

Hovatta, Iiris, Varilo, Teppo, Suvisaari, Jaana, Terwilliger, Joseph D., Ollikainen, Vesa, Arajärvi, Ritva, ...

Schizophrenia is a severe mental disorder affecting ∼1% of the world's population. Here, we report the results from a three-stage genomewide screen performed in a study sample from an internal...

Mutations in the Translated Region of the Lactase Gene (LCT) Underlie Congenital Lactase Deficiency

Kuokkanen, Mikko, Kokkonen, Jorma, Enattah, Nabil Sabri, Ylisaukko-oja, Tero, Komu, Hanna, Varilo, Teppo, ...

Congenital lactase deficiency (CLD) is a severe gastrointestinal disorder characterized by watery diarrhea in infants fed with breast milk or other lactose-containing formulas. We initially assigned...

A Genomewide Screen for Autism-Spectrum Disorders: Evidence for a Major Susceptibility Locus on Chromosome 3q25-27

Auranen, Mari, Vanhala, Raija, Varilo, Teppo, Ayers, Kristin, Kempas, Elli, Ylisaukko-oja, Tero, ...

To identify genetic loci for autism-spectrum disorders, we have performed a two-stage genomewide scan in 38 Finnish families. The detailed clinical examination of all family members revealed...

Mitochondrial DNA Polymerase W748S Mutation: A Common Cause of Autosomal Recessive Ataxia with Ancient European Origin

Hakonen, Anna H., Heiskanen, Silja, Juvonen, Vesa, Lappalainen, Ilse, Luoma, Petri T., Rantamäki, Maria, ...

Mutations in the catalytic subunit of the mitochondrial DNA polymerase γ (POLG) have been found to be an important cause of neurological disease. Recently, we and collaborators reported a new...

Assignment of the Locus for Hydrolethalus Syndrome to a Highly Restricted Region on 11q23-25

Visapää, Ilona, Salonen, Riitta, Varilo, Teppo, Paavola, Paulina, Peltonen, Leena

Hydrolethalus syndrome is a recessively inherited lethal malformation syndrome characterized by hydrocephaly with absent midline structures of the brain, micrognathia, polydactyly, and several other...

A Genomewide Screen for Schizophrenia Genes in an Isolated Finnish Subpopulation, Suggesting Multiple Susceptibility Loci

Hovatta, Iiris, Varilo, Teppo, Suvisaari, Jaana, Terwilliger, Joseph D., Ollikainen, Vesa, Arajärvi, Ritva, ...

Schizophrenia is a severe mental disorder affecting ∼1% of the world's population. Here, we report the results from a three-stage genomewide screen performed in a study sample from an internal...

Mutations in the Translated Region of the Lactase Gene (LCT) Underlie Congenital Lactase Deficiency

Kuokkanen, Mikko, Kokkonen, Jorma, Enattah, Nabil Sabri, Ylisaukko-oja, Tero, Komu, Hanna, Varilo, Teppo, ...

Congenital lactase deficiency (CLD) is a severe gastrointestinal disorder characterized by watery diarrhea in infants fed with breast milk or other lactose-containing formulas. We initially assigned...

The Genome-wide Patterns of Variation Expose Significant Substructure in a Founder Population

Jakkula, Eveliina, Rehnström, Karola, Varilo, Teppo, Pietiläinen, Olli P.H., Paunio, Tiina, Pedersen, Nancy L., ...

Although high-density SNP genotyping platforms generate a momentum for detailed genome-wide association (GWA) studies, an offshoot is a new insight into population genetics. Here, we present an...