Search

Your search keyword '"Christensen, Jane H"' showing total 29 results
Start Over Author "Christensen, Jane H" Search Limiters Full Text
29 results on '"Christensen, Jane H"'

1. Identification of common genetic risk variants for autism spectrum disorder

Author

Grove, Jakob, Ripke, Stephan, Als, Thomas D, Mattheisen, Manuel, Walters, Raymond K, Won, Hyejung, Pallesen, Jonatan, Agerbo, Esben, Andreassen, Ole A, Anney, Richard, Awashti, Swapnil, Belliveau, Rich, Bettella, Francesco, Buxbaum, Joseph D, Bybjerg-Grauholm, Jonas, Bækvad-Hansen, Marie, Cerrato, Felecia, Chambert, Kimberly, Christensen, Jane H, Churchhouse, Claire, Dellenvall, Karin, Demontis, Ditte, De Rubeis, Silvia, Devlin, Bernie, Djurovic, Srdjan, Dumont, Ashley L, Goldstein, Jacqueline I, Hansen, Christine S, Hauberg, Mads Engel, Hollegaard, Mads V, Hope, Sigrun, Howrigan, Daniel P, Huang, Hailiang, Hultman, Christina M, Klei, Lambertus, Maller, Julian, Martin, Joanna, Martin, Alicia R, Moran, Jennifer L, Nyegaard, Mette, Nærland, Terje, Palmer, Duncan S, Palotie, Aarno, Pedersen, Carsten Bøcker, Pedersen, Marianne Giørtz, dPoterba, Timothy, Poulsen, Jesper Buchhave, Pourcain, Beate St, Qvist, Per, Rehnström, Karola, Reichenberg, Abraham, Reichert, Jennifer, Robinson, Elise B, Roeder, Kathryn, Roussos, Panos, Saemundsen, Evald, Sandin, Sven, Satterstrom, F Kyle, Davey Smith, George, Stefansson, Hreinn, Steinberg, Stacy, Stevens, Christine R, Sullivan, Patrick F, Turley, Patrick, Walters, G Bragi, Xu, Xinyi, Stefansson, Kari, Geschwind, Daniel H, Nordentoft, Merete, Hougaard, David M, Werge, Thomas, Mors, Ole, Mortensen, Preben Bo, Neale, Benjamin M, Daly, Mark J, and Børglum, Anders D

Subjects
Intellectual and Developmental Disabilities (IDD), Human Genome, Pediatric, Brain Disorders, Autism, Biotechnology, Genetics, Mental Health, Prevention, 2.3 Psychological, social and economic factors, Aetiology, 2.1 Biological and endogenous factors, Mental health, Adolescent, Autism Spectrum Disorder, Case-Control Studies, Child, Child, Preschool, Denmark, Female, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Male, Multifactorial Inheritance, Phenotype, Polymorphism, Single Nucleotide, Risk Factors, Autism Spectrum Disorder Working Group of the Psychiatric Genomics Consortium, BUPGEN, Major Depressive Disorder Working Group of the Psychiatric Genomics Consortium, 23andMe Research Team, Biological Sciences, Medical and Health Sciences, Developmental Biology
Abstract

Autism spectrum disorder (ASD) is a highly heritable and heterogeneous group of neurodevelopmental phenotypes diagnosed in more than 1% of children. Common genetic variants contribute substantially to ASD susceptibility, but to date no individual variants have been robustly associated with ASD. With a marked sample-size increase from a unique Danish population resource, we report a genome-wide association meta-analysis of 18,381 individuals with ASD and 27,969 controls that identified five genome-wide-significant loci. Leveraging GWAS results from three phenotypes with significantly overlapping genetic architectures (schizophrenia, major depression, and educational attainment), we identified seven additional loci shared with other traits at equally strict significance levels. Dissecting the polygenic architecture, we found both quantitative and qualitative polygenic heterogeneity across ASD subtypes. These results highlight biological insights, particularly relating to neuronal function and corticogenesis, and establish that GWAS performed at scale will be much more productive in the near term in ASD.

Published
2019

2. Reduced Brd1 expression leads to reversible depression-like behaviors and gene-expression changes in female mice

Author

Rajkumar, Anto P., Qvist, Per, Donskov, Julie G., Lazarus, Ross, Pallesen, Jonatan, Nava, Nicoletta, Winther, Gudrun, Liebenberg, Nico, Cour, Sanne H. la, Paternoster, Veerle, Fryland, Tue, Palmfeldt, Johan, Fejgin, Kim, Mørk, Arne, Nyegaard, Mette, Pakkenberg, Bente, Didriksen, Michael, Nyengaard, Jens R., Wegener, Gregers, Mors, Ole, Christensen, Jane H., and Børglum, Anders D.

Published
2020
Full Text
View/download PDF

3. Brain volumetric alterations accompanied with loss of striatal medium-sized spiny neurons and cortical parvalbumin expressing interneurons in Brd1+/− mice

Author

Qvist, Per, Eskildsen, Simon F., Hansen, Brian, Baragji, Mohammad, Ringgaard, Steffen, Roovers, Jolien, Paternoster, Veerle, Molgaard, Simon, Corydon, Thomas Juhl, Stødkilde-Jørgensen, Hans, Glerup, Simon, Mors, Ole, Wegener, Gregers, Nyengaard, Jens R., Børglum, Anders D., and Christensen, Jane H.

Published
2018
Full Text
View/download PDF

5. Introduction

Author

Kleinridders, Andre, Lauritzen, Hans P.M.M., Ussar, Siegfried, Christensen, Jane H., Mori, Marcelo A., Bross, Peter, and Kahn, C. Ronald

Subjects
Heat shock proteins -- Analysis -- Physiological aspects -- Genetic aspects -- Research, Insulin resistance -- Analysis -- Risk factors -- Genetic aspects -- Research, Type 2 diabetes -- Analysis -- Complications and side effects -- Development and progression -- Genetic aspects -- Research, Health care industry
Abstract

Type 2 diabetes is characterized by insulin resistance and mitochondrial dysfunction in classical target tissues such as muscle, fat, and liver. Using a murine model of type 2 diabetes, we show that there is hypothalamic insulin resistance and mitochondrial dysfunction due to downregulation of the mitochondrial chaperone HSP60. HSP60 reduction in obese, diabetic mice was due to a lack of proper leptin signaling and was restored by leptin treatment. Knockdown of Hsp60 in a mouse hypothalamic cell line mimicked the mitochondrial dysfunction observed in diabetic mice and resulted in increased ROS production and insulin resistance, a phenotype that was reversed with antioxidant treatment. Mice with a heterozygous deletion of Hsp60 exhibited mitochondrial dysfunction and hypothalamic insulin resistance. Targeted acute downregulation of Hsp60 in the hypothalamus also induced insulin resistance, indicating that mitochondrial dysfunction can cause insulin resistance in the hypothalamus. Importantly, type 2 diabetic patients exhibited decreased expression of HSP60 in the brain, indicating that this mechanism is relevant to human disease. These data indicate that leptin plays an important role in mitochondrial function and insulin sensitivity in the hypothalamus by regulating HSP60. Moreover, leptin/insulin crosstalk in the hypothalamus impacts energy homeostasis in obesity and insulin-resistant states., A central feature of type 2 diabetes is insulin resistance, a state in which tissues in the body exhibit abnormal responses to normal levels of insulin. In peripheral tissues, such [...]

Published
2013

6. Identification of genetic loci associated with nocturnal enuresis:a genome-wide association study

Author

Jørgensen, Cecilie S., Horsdal, Henriette T., Rajagopal, Veera M., Grove, Jakob, Als, Thomas D., Kamperis, Konstantinos, Nyegaard, Mette, Walters, G. Bragi, Eðvarðsson, Viðar Örn, Stefánsson, Hreinn, Nordentoft, Merete, Hougaard, David Michael, Werge, Thomas, Mors, Ole, Mortensen, Preben Bo, Agerbo, Esben, Rittig, Søren, Stefánsson, Kári, Børglum, Anders D., Demontis, Ditte, Christensen, Jane H., Jørgensen, Cecilie S., Horsdal, Henriette T., Rajagopal, Veera M., Grove, Jakob, Als, Thomas D., Kamperis, Konstantinos, Nyegaard, Mette, Walters, G. Bragi, Eðvarðsson, Viðar Örn, Stefánsson, Hreinn, Nordentoft, Merete, Hougaard, David Michael, Werge, Thomas, Mors, Ole, Mortensen, Preben Bo, Agerbo, Esben, Rittig, Søren, Stefánsson, Kári, Børglum, Anders D., Demontis, Ditte, and Christensen, Jane H.

Abstract

Background: Nocturnal enuresis (bedwetting) is a common disorder affecting 10–16% of 7-year-old children globally. Nocturnal enuresis is highly heritable, but its genetic determinants remain unknown. We aimed to identify genetic variants associated with nocturnal enuresis and explore its genetic architecture and underlying biology. Methods: We did a genome-wide association study (GWAS) of nocturnal enuresis. Nocturnal enuresis cases were identified in iPSYCH2012, a large Danish population-based case cohort established to investigate mental disorders, on the basis of 10th revision of the International Statistical Classification of Diseases (ICD-10) diagnoses and redeemed desmopressin prescriptions in Danish registers. The GWAS was done in a genetically homogeneous sample of unrelated individuals using logistic regression with relevant covariates. All genome-wide significant variants were analysed for their association with nocturnal enuresis in an independent Icelandic sample from deCODE genetics. Standardised polygenic risk scores for attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder were constructed from summary statistics of large GWASs and analysed for association with nocturnal enuresis. Findings: The GWAS included 3882 nocturnal enuresis cases and 31 073 controls. We found two loci at chromosome 6 and chromosome 13 significantly associated with nocturnal enuresis. Six genetic variants at the two loci (five variants at chromosome 6q16.2 and one variant at chromosome 13q22.3) surpassed the threshold for genome-wide significance (p<5 × 10−8). There were two lead variants: rs9376454 (chromosome 6q16.2), with an odds ratio (OR) of 1·199 (95% CI 1·135–1·267; p=9·91 × 10−11), and rs60721117 (chromosome 13q22.3), with an OR of 1·149 (1·095–1·205; p=1·21 × 10−8). All associated variants in the chromosome 6 locus were replicated (p<8 × 10−3) in the independent Icelandic cohort of 5475 nocturn

Published
2021

8. Genomic Relationships, Novel Loci, and Pleiotropic Mechanisms across Eight Psychiatric Disorders

Author

Lee, Phil H., primary, Anttila, Verneri, additional, Won, Hyejung, additional, Feng, Yen-Chen A., additional, Rosenthal, Jacob, additional, Zhu, Zhaozhong, additional, Tucker-Drob, Elliot M., additional, Nivard, Michel G., additional, Grotzinger, Andrew D., additional, Posthuma, Danielle, additional, Wang, Meg M.-J., additional, Yu, Dongmei, additional, Stahl, Eli A., additional, Walters, Raymond K., additional, Anney, Richard J.L., additional, Duncan, Laramie E., additional, Ge, Tian, additional, Adolfsson, Rolf, additional, Banaschewski, Tobias, additional, Belangero, Sintia, additional, Cook, Edwin H., additional, Coppola, Giovanni, additional, Derks, Eske M., additional, Hoekstra, Pieter J., additional, Kaprio, Jaakko, additional, Keski-Rahkonen, Anna, additional, Kirov, George, additional, Kranzler, Henry R., additional, Luykx, Jurjen J., additional, Rohde, Luis A., additional, Zai, Clement C., additional, Agerbo, Esben, additional, Arranz, M.J., additional, Asherson, Philip, additional, Bækvad-Hansen, Marie, additional, Baldursson, Gísli, additional, Bellgrove, Mark, additional, Belliveau, Richard A., additional, Buitelaar, Jan, additional, Burton, Christie L., additional, Bybjerg-Grauholm, Jonas, additional, Casas, Miquel, additional, Cerrato, Felecia, additional, Chambert, Kimberly, additional, Churchhouse, Claire, additional, Cormand, Bru, additional, Crosbie, Jennifer, additional, Dalsgaard, Søren, additional, Demontis, Ditte, additional, Doyle, Alysa E., additional, Dumont, Ashley, additional, Elia, Josephine, additional, Grove, Jakob, additional, Gudmundsson, Olafur O., additional, Haavik, Jan, additional, Hakonarson, Hakon, additional, Hansen, Christine S., additional, Hartman, Catharina A., additional, Hawi, Ziarih, additional, Hervás, Amaia, additional, Hougaard, David M., additional, Howrigan, Daniel P., additional, Huang, Hailiang, additional, Kuntsi, Jonna, additional, Langley, Kate, additional, Lesch, Klaus-Peter, additional, Leung, Patrick W.L., additional, Loo, Sandra K., additional, Martin, Joanna, additional, Martin, Alicia R., additional, McGough, James J., additional, Medland, Sarah E., additional, Moran, Jennifer L., additional, Mors, Ole, additional, Mortensen, Preben B., additional, Oades, Robert D., additional, Palmer, Duncan S., additional, Pedersen, Carsten B., additional, Pedersen, Marianne G., additional, Peters, Triinu, additional, Poterba, Timothy, additional, Poulsen, Jesper B., additional, Ramos-Quiroga, Josep Antoni, additional, Reif, Andreas, additional, Ribasés, Marta, additional, Rothenberger, Aribert, additional, Rovira, Paula, additional, Sánchez-Mora, Cristina, additional, Satterstrom, F. Kyle, additional, Schachar, Russell, additional, Artigas, Maria Soler, additional, Steinberg, Stacy, additional, Stefansson, Hreinn, additional, Turley, Patrick, additional, Walters, G. Bragi, additional, Werge, Thomas, additional, Zayats, Tetyana, additional, Arking, Dan E., additional, Bettella, Francesco, additional, Buxbaum, Joseph D., additional, Christensen, Jane H., additional, Collins, Ryan L., additional, Coon, Hilary, additional, De Rubeis, Silvia, additional, Delorme, Richard, additional, Grice, Dorothy E., additional, Hansen, Thomas F., additional, Holmans, Peter A., additional, Hope, Sigrun, additional, Hultman, Christina M., additional, Klei, Lambertus, additional, Ladd-Acosta, Christine, additional, Magnusson, Pall, additional, Nærland, Terje, additional, Nyegaard, Mette, additional, Pinto, Dalila, additional, Qvist, Per, additional, Rehnström, Karola, additional, Reichenberg, Abraham, additional, Reichert, Jennifer, additional, Roeder, Kathryn, additional, Rouleau, Guy A., additional, Saemundsen, Evald, additional, Sanders, Stephan J., additional, Sandin, Sven, additional, St Pourcain, Beate, additional, Stefansson, Kari, additional, Sutcliffe, James S., additional, Talkowski, Michael E., additional, Weiss, Lauren A., additional, Willsey, A. Jeremy, additional, Agartz, Ingrid, additional, Akil, Huda, additional, Albani, Diego, additional, Alda, Martin, additional, Als, Thomas D., additional, Anjorin, Adebayo, additional, Backlund, Lena, additional, Bass, Nicholas, additional, Bauer, Michael, additional, Baune, Bernhard T., additional, Bellivier, Frank, additional, Bergen, Sarah E., additional, Berrettini, Wade H., additional, Biernacka, Joanna M., additional, Blackwood, Douglas H.R., additional, Bøen, Erlend, additional, Budde, Monika, additional, Bunney, William, additional, Burmeister, Margit, additional, Byerley, William, additional, Byrne, Enda M., additional, Cichon, Sven, additional, Clarke, Toni-Kim, additional, Coleman, Jonathan R.I., additional, Craddock, Nicholas, additional, Curtis, David, additional, Czerski, Piotr M., additional, Dale, Anders M., additional, Dalkner, Nina, additional, Dannlowski, Udo, additional, Degenhardt, Franziska, additional, Di Florio, Arianna, additional, Elvsåshagen, Torbjørn, additional, Etain, Bruno, additional, Fischer, Sascha B., additional, Forstner, Andreas J., additional, Forty, Liz, additional, Frank, Josef, additional, Frye, Mark, additional, Fullerton, Janice M., additional, Gade, Katrin, additional, Gaspar, Héléna A., additional, Gershon, Elliot S., additional, Gill, Michael, additional, Goes, Fernando S., additional, Gordon, Scott D., additional, Gordon-Smith, Katherine, additional, Green, Melissa J., additional, Greenwood, Tiffany A., additional, Grigoroiu-Serbanescu, Maria, additional, Guzman-Parra, José, additional, Hauser, Joanna, additional, Hautzinger, Martin, additional, Heilbronner, Urs, additional, Herms, Stefan, additional, Hoffmann, Per, additional, Holland, Dominic, additional, Jamain, Stéphane, additional, Jones, Ian, additional, Jones, Lisa A., additional, Kandaswamy, Radhika, additional, Kelsoe, John R., additional, Kennedy, James L., additional, Joachim, Oedegaard Ketil, additional, Kittel-Schneider, Sarah, additional, Kogevinas, Manolis, additional, Koller, Anna C., additional, Lavebratt, Catharina, additional, Lewis, Cathryn M., additional, Li, Qingqin S., additional, Lissowska, Jolanta, additional, Loohuis, Loes M.O., additional, Lucae, Susanne, additional, Maaser, Anna, additional, Malt, Ulrik F., additional, Martin, Nicholas G., additional, Martinsson, Lina, additional, McElroy, Susan L., additional, McMahon, Francis J., additional, McQuillin, Andrew, additional, Melle, Ingrid, additional, Metspalu, Andres, additional, Millischer, Vincent, additional, Mitchell, Philip B., additional, Montgomery, Grant W., additional, Morken, Gunnar, additional, Morris, Derek W., additional, Müller-Myhsok, Bertram, additional, Mullins, Niamh, additional, Myers, Richard M., additional, Nievergelt, Caroline M., additional, Nordentoft, Merete, additional, Adolfsson, Annelie Nordin, additional, Nöthen, Markus M., additional, Ophoff, Roel A., additional, Owen, Michael J., additional, Paciga, Sara A., additional, Pato, Carlos N., additional, Pato, Michele T., additional, Perlis, Roy H., additional, Perry, Amy, additional, Potash, James B., additional, Reinbold, Céline S., additional, Rietschel, Marcella, additional, Rivera, Margarita, additional, Roberson, Mary, additional, Schalling, Martin, additional, Schofield, Peter R., additional, Schulze, Thomas G., additional, Scott, Laura J., additional, Serretti, Alessandro, additional, Sigurdsson, Engilbert, additional, Smeland, Olav B., additional, Stordal, Eystein, additional, Streit, Fabian, additional, Strohmaier, Jana, additional, Thorgeirsson, Thorgeir E., additional, Treutlein, Jens, additional, Turecki, Gustavo, additional, Vaaler, Arne E., additional, Vieta, Eduard, additional, Vincent, John B., additional, Wang, Yunpeng, additional, Witt, Stephanie H., additional, Zandi, Peter, additional, Adan, Roger A.H., additional, Alfredsson, Lars, additional, Ando, Tetsuya, additional, Aschauer, Harald, additional, Baker, Jessica H., additional, Bencko, Vladimir, additional, Bergen, Andrew W., additional, Birgegård, Andreas, additional, Perica, Vesna Boraska, additional, Brandt, Harry, additional, Burghardt, Roland, additional, Carlberg, Laura, additional, Cassina, Matteo, additional, Clementi, Maurizio, additional, Courtet, Philippe, additional, Crawford, Steven, additional, Crow, Scott, additional, Crowley, James J., additional, Danner, Unna N., additional, Davis, Oliver S.P., additional, Degortes, Daniela, additional, DeSocio, Janiece E., additional, Dick, Danielle M., additional, Dina, Christian, additional, Docampo, Elisa, additional, Egberts, Karin, additional, Ehrlich, Stefan, additional, Espeseth, Thomas, additional, Fernández-Aranda, Fernando, additional, Fichter, Manfred M., additional, Foretova, Lenka, additional, Forzan, Monica, additional, Gambaro, Giovanni, additional, Giegling, Ina, additional, Gonidakis, Fragiskos, additional, Gorwood, Philip, additional, Mayora, Monica Gratacos, additional, Guo, Yiran, additional, Halmi, Katherine A., additional, Hatzikotoulas, Konstantinos, additional, Hebebrand, Johannes, additional, Helder, Sietske G., additional, Herpertz-Dahlmann, Beate, additional, Herzog, Wolfgang, additional, Hinney, Anke, additional, Imgart, Hartmut, additional, Jiménez-Murcia, Susana, additional, Johnson, Craig, additional, Jordan, Jennifer, additional, Julià, Antonio, additional, Kaminská, Deborah, additional, Karhunen, Leila, additional, Karwautz, Andreas, additional, Kas, Martien J.H., additional, Kaye, Walter H., additional, Kennedy, Martin A., additional, Kim, Youl-Ri, additional, Klareskog, Lars, additional, Klump, Kelly L., additional, Knudsen, Gun Peggy S., additional, Landén, Mikael, additional, Le Hellard, Stephanie, additional, Levitan, Robert D., additional, Li, Dong, additional, Lichtenstein, Paul, additional, Maj, Mario, additional, Marsal, Sara, additional, McDevitt, Sara, additional, Mitchell, James, additional, Monteleone, Palmiero, additional, Monteleone, Alessio Maria, additional, Munn-Chernoff, Melissa A., additional, Nacmias, Benedetta, additional, Navratilova, Marie, additional, O’Toole, Julie K., additional, Padyukov, Leonid, additional, Pantel, Jacques, additional, Papezova, Hana, additional, Rabionet, Raquel, additional, Raevuori, Anu, additional, Ramoz, Nicolas, additional, Reichborn-Kjennerud, Ted, additional, Ricca, Valdo, additional, Roberts, Marion, additional, Rujescu, Dan, additional, Rybakowski, Filip, additional, Scherag, André, additional, Schmidt, Ulrike, additional, Seitz, Jochen, additional, Slachtova, Lenka, additional, Slof-Op‘t Landt, Margarita C.T., additional, Slopien, Agnieszka, additional, Sorbi, Sandro, additional, Southam, Lorraine, additional, Strober, Michael, additional, Tortorella, Alfonso, additional, Tozzi, Federica, additional, Treasure, Janet, additional, Tziouvas, Konstantinos, additional, van Elburg, Annemarie A., additional, Wade, Tracey D., additional, Wagner, Gudrun, additional, Walton, Esther, additional, Watson, Hunna J., additional, Wichmann, H-Erich, additional, Woodside, D. Blake, additional, Zeggini, Eleftheria, additional, Zerwas, Stephanie, additional, Zipfel, Stephan, additional, Adams, Mark J., additional, Andlauer, Till F.M., additional, Berger, Klaus, additional, Binder, Elisabeth B., additional, Boomsma, Dorret I., additional, Castelao, Enrique, additional, Colodro-Conde, Lucía, additional, Direk, Nese, additional, Docherty, Anna R., additional, Domenici, Enrico, additional, Domschke, Katharina, additional, Dunn, Erin C., additional, Foo, Jerome C., additional, de. Geus, E.J.C., additional, Grabe, Hans J., additional, Hamilton, Steven P., additional, Horn, Carsten, additional, Hottenga, Jouke-Jan, additional, Howard, David, additional, Ising, Marcus, additional, Kloiber, Stefan, additional, Levinson, Douglas F., additional, Lewis, Glyn, additional, Magnusson, Patrik K.E., additional, Mbarek, Hamdi, additional, Middeldorp, Christel M., additional, Mostafavi, Sara, additional, Nyholt, Dale R., additional, Penninx, Brenda WJH., additional, Peterson, Roseann E., additional, Pistis, Giorgio, additional, Porteous, David J., additional, Preisig, Martin, additional, Quiroz, Jorge A., additional, Schaefer, Catherine, additional, Schulte, Eva C., additional, Shi, Jianxin, additional, Smith, Daniel J., additional, Thomson, Pippa A., additional, Tiemeier, Henning, additional, Uher, Rudolf, additional, van der Auwera, Sandra, additional, Weissman, Myrna M., additional, Alexander, Madeline, additional, Begemann, Martin, additional, Bramon, Elvira, additional, Buccola, Nancy G., additional, Cairns, Murray J., additional, Campion, Dominique, additional, Carr, Vaughan J., additional, Cloninger, C. Robert, additional, Cohen, David, additional, Collier, David A., additional, Corvin, Aiden, additional, DeLisi, Lynn E., additional, Donohoe, Gary, additional, Dudbridge, Frank, additional, Duan, Jubao, additional, Freedman, Robert, additional, Gejman, Pablo V., additional, Golimbet, Vera, additional, Godard, Stephanie, additional, Ehrenreich, Hannelore, additional, Hartmann, Annette M., additional, Henskens, Frans A., additional, Ikeda, Masashi, additional, Iwata, Nakao, additional, Jablensky, Assen V., additional, Joa, Inge, additional, Jönsson, Erik G., additional, Kelly, Brian J., additional, Knight, Jo, additional, Konte, Bettina, additional, Laurent-Levinson, Claudine, additional, Lee, Jimmy, additional, Lencz, Todd, additional, Lerer, Bernard, additional, Loughland, Carmel M., additional, Malhotra, Anil K., additional, Mallet, Jacques, additional, McDonald, Colm, additional, Mitjans, Marina, additional, Mowry, Bryan J., additional, Murphy, Kieran C., additional, Murray, Robin M., additional, O’Neill, F. Anthony, additional, Oh, Sang-Yun, additional, Palotie, Aarno, additional, Pantelis, Christos, additional, Pulver, Ann E., additional, Petryshen, Tracey L., additional, Quested, Digby J., additional, Riley, Brien, additional, Sanders, Alan R., additional, Schall, Ulrich, additional, Schwab, Sibylle G., additional, Scott, Rodney J., additional, Sham, Pak C., additional, Silverman, Jeremy M., additional, Sim, Kang, additional, Steixner, Agnes A., additional, Tooney, Paul A., additional, van Os, Jim, additional, Vawter, Marquis P., additional, Walsh, Dermot, additional, Weiser, Mark, additional, Wildenauer, Dieter B., additional, Williams, Nigel M., additional, Wormley, Brandon K., additional, Zhang, Fuquan, additional, Androutsos, Christos, additional, Arnold, Paul D., additional, Barr, Cathy L., additional, Barta, Csaba, additional, Bey, Katharina, additional, Bienvenu, O. Joseph, additional, Black, Donald W., additional, Brown, Lawrence W., additional, Budman, Cathy, additional, Cath, Danielle, additional, Cheon, Keun-Ah, additional, Ciullo, Valentina, additional, Coffey, Barbara J., additional, Cusi, Daniele, additional, Davis, Lea K., additional, Denys, Damiaan, additional, Depienne, Christel, additional, Dietrich, Andrea, additional, Eapen, Valsamma, additional, Falkai, Peter, additional, Fernandez, Thomas V., additional, Garcia-Delgar, Blanca, additional, Geller, Daniel A., additional, Gilbert, Donald L., additional, Grados, Marco A., additional, Greenberg, Erica, additional, Grünblatt, Edna, additional, Hagstrøm, Julie, additional, Hanna, Gregory L., additional, Hartmann, Andreas, additional, Hedderly, Tammy, additional, Heiman, Gary A., additional, Heyman, Isobel, additional, Hong, Hyun Ju, additional, Huang, Alden, additional, Huyser, Chaim, additional, Ibanez-Gomez, Laura, additional, Khramtsova, Ekaterina A., additional, Kim, Young Key, additional, Kim, Young-Shin, additional, King, Robert A., additional, Koh, Yun-Joo, additional, Konstantinidis, Anastasios, additional, Kook, Sodahm, additional, Kuperman, Samuel, additional, Leventhal, Bennett L., additional, Lochner, Christine, additional, Ludolph, Andrea G., additional, Madruga-Garrido, Marcos, additional, Malaty, Irene, additional, Maras, Athanasios, additional, McCracken, James T., additional, Meijer, Inge A., additional, Mir, Pablo, additional, Morer, Astrid, additional, Müller-Vahl, Kirsten R., additional, Münchau, Alexander, additional, Murphy, Tara L., additional, Naarden, Allan, additional, Nagy, Peter, additional, Nestadt, Gerald, additional, Nestadt, Paul S., additional, Nicolini, Humberto, additional, Nurmi, Erika L., additional, Okun, Michael S., additional, Paschou, Peristera, additional, Piras, Fabrizio, additional, Piras, Federica, additional, Pittenger, Christopher, additional, Plessen, Kerstin J., additional, Richter, Margaret A., additional, Rizzo, Renata, additional, Robertson, Mary, additional, Roessner, Veit, additional, Ruhrmann, Stephan, additional, Samuels, Jack F., additional, Sandor, Paul, additional, Schlögelhofer, Monika, additional, Shin, Eun-Young, additional, Singer, Harvey, additional, Song, Dong-Ho, additional, Song, Jungeun, additional, Spalletta, Gianfranco, additional, Stein, Dan J., additional, Stewart, S Evelyn, additional, Storch, Eric A., additional, Stranger, Barbara, additional, Stuhrmann, Manfred, additional, Tarnok, Zsanett, additional, Tischfield, Jay A., additional, Tübing, Jennifer, additional, Visscher, Frank, additional, Vulink, Nienke, additional, Wagner, Michael, additional, Walitza, Susanne, additional, Wanderer, Sina, additional, Woods, Martin, additional, Worbe, Yulia, additional, Zai, Gwyneth, additional, Zinner, Samuel H., additional, Sullivan, Patrick F., additional, Franke, Barbara, additional, Daly, Mark J., additional, Bulik, Cynthia M., additional, McIntosh, Andrew M., additional, O’Donovan, Michael C., additional, Zheutlin, Amanda, additional, Andreassen, Ole A., additional, Børglum, Anders D., additional, Breen, Gerome, additional, Edenberg, Howard J., additional, Fanous, Ayman H., additional, Faraone, Stephen V., additional, Gelernter, Joel, additional, Mathews, Carol A., additional, Mattheisen, Manuel, additional, Mitchell, Karen S., additional, Neale, Michael C., additional, Nurnberger, John I., additional, Ripke, Stephan, additional, Santangelo, Susan L., additional, Scharf, Jeremiah M., additional, Stein, Murray B., additional, Thornton, Laura M., additional, Walters, James T.R., additional, Wray, Naomi R., additional, Geschwind, Daniel H., additional, Neale, Benjamin M., additional, Kendler, Kenneth S., additional, and Smoller, Jordan W., additional

Published
2019
Full Text
View/download PDF

10. Mitochondrial proteomics on human fibroblasts for identification of metabolic imbalance and cellular stress

Author

Bross Peter, Christensen Jane H, Pedersen Christina B, Stenbroen Vibeke, Vang Søren, Palmfeldt Johan, and Gregersen Niels

Subjects
Cytology, QH573-671
Abstract

Abstract Background Mitochondrial proteins are central to various metabolic activities and are key regulators of apoptosis. Disturbance of mitochondrial proteins is therefore often associated with disease. Large scale protein data are required to capture the mitochondrial protein levels and mass spectrometry based proteomics is suitable for generating such data. To study the relative quantities of mitochondrial proteins in cells from cultivated human skin fibroblasts we applied a proteomic method based on nanoLC-MS/MS analysis of iTRAQ-labeled peptides. Results When fibroblast cultures were exposed to mild metabolic stress – by cultivation in galactose medium- the amount of mitochondria appeared to be maintained whereas the levels of individual proteins were altered. Proteins of respiratory chain complex I and IV were increased together with NAD+-dependent isocitrate dehydrogenase of the citric acid cycle illustrating cellular strategies to cope with altered energy metabolism. Furthermore, quantitative protein data, with a median standard error below 6%, were obtained for the following mitochondrial pathways: fatty acid oxidation, citric acid cycle, respiratory chain, antioxidant systems, amino acid metabolism, mitochondrial translation, protein quality control, mitochondrial morphology and apoptosis. Conclusion The robust analytical platform in combination with a well-defined compendium of mitochondrial proteins allowed quantification of single proteins as well as mapping of entire pathways. This enabled characterization of the interplay between metabolism and stress response in human cells exposed to mild stress.

Published
2009
Full Text
View/download PDF

14. Identification of the BRD1 interaction network and its impact on mental disorder risk

Author

Fryland, Tue, Christensen, Jane H., Pallesen, Jonatan, Mattheisen, Manuel, Palmfeldt, Johan, Bak, Mads, Grove, Jakob, Demontis, Ditte, Blechingberg, Jenny, Ooi, Hong Sain, Nyegaard, Mette, Hauberg, Mads E., Tommerup, Niels, Gregersen, Niels, Mors, Ole, Corydon, Thomas J., Nielsen, Anders L., Borglum, Anders D., Fryland, Tue, Christensen, Jane H., Pallesen, Jonatan, Mattheisen, Manuel, Palmfeldt, Johan, Bak, Mads, Grove, Jakob, Demontis, Ditte, Blechingberg, Jenny, Ooi, Hong Sain, Nyegaard, Mette, Hauberg, Mads E., Tommerup, Niels, Gregersen, Niels, Mors, Ole, Corydon, Thomas J., Nielsen, Anders L., and Borglum, Anders D.

Abstract

Background: The bromodomain containing 1 (BRD1) gene has been implicated with transcriptional regulation, brain development, and susceptibility to schizophrenia and bipolar disorder. To advance the understanding of BRD1 and its role in mental disorders, we characterized the protein and chromatin interactions of the BRD1 isoforms, BRD1-S and BRD1-L. Methods: Stable human cell lines expressing epitope tagged BRD1-S and BRD1-L were generated and used as discovery systems for identifying protein and chromatin interactions. Protein-protein interactions were identified using co-immunoprecipitation followed by mass spectrometry and chromatin interactions were identified using chromatin immunoprecipitation followed by next generation sequencing. Gene expression profiles and differentially expressed genes were identified after upregulating and downregulating BRD1 expression using microarrays. The presented functional molecular data were integrated with human genomic and transcriptomic data using available GWAS, exome-sequencing datasets as well as spatiotemporal transcriptomic datasets from the human brain. Results: We present several novel protein interactions of BRD1, including isoform-specific interactions as well as proteins previously implicated with mental disorders. By BRD1-S and BRD1-L chromatin immunoprecipitation followed by next generation sequencing we identified binding to promoter regions of 1540 and 823 genes, respectively, and showed correlation between BRD1-S and BRD1-L binding and regulation of gene expression. The identified BRD1 interaction network was found to be predominantly co-expressed with BRD1 mRNA in the human brain and enriched for pathways involved in gene expression and brain function. By interrogation of large datasets from genome-wide association studies, we further demonstrate that the BRD1 interaction network is enriched for schizophrenia risk. Conclusion: Our results show that BRD1 interacts with chromatin remode

Published
2016

15. Identification of the BRD1 interaction network and its impact on mental disorder risk

Author

Fryland, Tue, primary, Christensen, Jane H., additional, Pallesen, Jonatan, additional, Mattheisen, Manuel, additional, Palmfeldt, Johan, additional, Bak, Mads, additional, Grove, Jakob, additional, Demontis, Ditte, additional, Blechingberg, Jenny, additional, Ooi, Hong Sain, additional, Nyegaard, Mette, additional, Hauberg, Mads E., additional, Tommerup, Niels, additional, Gregersen, Niels, additional, Mors, Ole, additional, Corydon, Thomas J., additional, Nielsen, Anders L., additional, and Børglum, Anders D., additional

Published
2016
Full Text
View/download PDF

16. Analysis of t(9;17)(q33.2;q25.3) chromosomal breakpoint regions and genetic association reveals novel candidate genes for bipolar disorder

Author

Rajkumar, Anto P, Christensen, Jane H, Mattheisen, Manuel, Jacobsen, Iben, Bache, Iben, Pallesen, Jonatan, Grove, Jakob, Qvist, Per, McQuillin, Andrew, Gurling, Hugh M, Tümer, Zeynep, Mors, Ole, Børglum, Anders D, Rajkumar, Anto P, Christensen, Jane H, Mattheisen, Manuel, Jacobsen, Iben, Bache, Iben, Pallesen, Jonatan, Grove, Jakob, Qvist, Per, McQuillin, Andrew, Gurling, Hugh M, Tümer, Zeynep, Mors, Ole, and Børglum, Anders D

Abstract

OBJECTIVES: Breakpoints of chromosomal abnormalities facilitate identification of novel candidate genes for psychiatric disorders. Genome-wide significant evidence supports the linkage between chromosome 17q25.3 and bipolar disorder (BD). Co-segregation of translocation t(9;17)(q33.2;q25.3) with psychiatric disorders has been reported. We aimed to narrow down these chromosomal breakpoint regions and to investigate the associations between single nucleotide polymorphisms within these regions and BD as well as schizophrenia (SZ) in large genome-wide association study samples.METHODS: We cross-linked Danish psychiatric and cytogenetic case registers to identify an individual with both t(9;17)(q33.2;q25.3) and BD. Fluorescent in situ hybridization was employed to map the chromosomal breakpoint regions of this proband. We accessed the Psychiatric Genomics Consortium BD (n = 16,731) and SZ (n = 21,856) data. Genetic associations between these disorders and single nucleotide polymorphisms within these breakpoint regions were analysed by BioQ, FORGE, and RegulomeDB programmes.RESULTS: Four protein-coding genes [coding for (endonuclease V (ENDOV), neuronal pentraxin I (NPTX1), ring finger protein 213 (RNF213), and regulatory-associated protein of mammalian target of rapamycin (mTOR) (RPTOR)] were found to be located within the 17q25.3 breakpoint region. NPTX1 was significantly associated with BD (p = 0.004), while ENDOV was significantly associated with SZ (p = 0.0075) after Bonferroni correction.CONCLUSIONS: Prior linkage evidence and our findings suggest NPTX1 as a novel candidate gene for BD.

Published
2015

19. Electroconvulsive seizures regulates the Brd1 gene in the frontal cortex and hippocampus of the adult rat

Author

22353003 - Wegener, Gregers, Fryland, Tue, Wegener, Gregers, Elfving, Betina, Christensen, Jane H., Mors, Ole, 22353003 - Wegener, Gregers, Fryland, Tue, Wegener, Gregers, Elfving, Betina, Christensen, Jane H., and Mors, Ole

Abstract

Depressive disorders represent a significant health concern as they are associated with high social and physical dysfunction and increased risk for suicide. Electroconvulsive therapy (ECT) is the most effective treatment for patients with drug-resistant severe depressive disorders. However, the underlying biological mechanisms of ECT are not well characterized. In particular, the regulation of transcription factors upon ECT has only just started to be unveiled. The schizophrenia and bipolar disorder associated bromodomain containing 1 (BRD1) gene is important for the acetylation of histone H3K14 and holds a key role in normal embryonic development and survival. In this study, we have measured Brd1 mRNA in the hippocampus and the frontal cortex of male Sprague-Dawley rats upon acute and repeated electroconvulsive seizures (ECS) over a period of 10 days. We found an increase in the general expression of Brd1 mRNA in the hippocampus after repeated ECS compared to sham (F = 8.108, P = 0.003). Furthermore, we provide evidence suggesting a decrease in the expression of the Brd1 mRNA variant comprising an extended version of exon 7 (Brd1-L) in the frontal cortex after repeated ECS compared to sham (F = 6.225, P = 0.023). These findings indicate that regulation of the Brd1 gene is part of the biological response to ECS and that splice variants are induced differentially in different brain regions.

Published
2012

20. The schizophrenia and bipolar disorder associated BRD1 gene is regulated upon chronic restraint stress

Author

22353003 - Wegener, Gregers, Christensen, Jane H., Wegener, Gregers, Elfving, Betina, Müller, Heidi K., Fryland, Tue, 22353003 - Wegener, Gregers, Christensen, Jane H., Wegener, Gregers, Elfving, Betina, Müller, Heidi K., and Fryland, Tue

Abstract

Recent genetic evidence has implicated the bromodomain containing 1 gene (BRD1) with brain development and susceptibility to Schizophrenia and Bipolar Disorder. The BRD1 protein, which is essential for acetylation of histone H3K14, is a putative regulator of transcription during brain development and in the mature CNS. However, several issues remain to be clarified for example regarding the regulation of the BRD1 gene upon environmental interventions. Chronic restraint stress (CRS) in rats represents an environmental method for induction of morphological and functional changes in the hippocampus and the prefrontal cortex. In order to investigate whether the expression of the rat Brd1 gene may be regulated during such conditions, Brd1 mRNA and protein levels in hippocampus and prefrontal cortex extracts from rats subjected to either 1/2 or 6 h of CRS per day for 21 days were measured. We found a significant 2-fold up-regulation of long exon 7 splice variants of the Brd1 gene (Brd1-L) in hippocampus in both groups of CRS rats compared to controls. Concomitantly, we found a similar up-regulation of the BRD1 protein. In prefrontal cortex, we found no significant differences in Brd1 mRNA or protein levels. As selective histone deacetylase (HDAC) inhibitors not only preserve stress-induced hyperacetylation of histone H3K14 but also have hippocampal-dependent antidepressant-like activity, we propose that BRD1 by its intrinsic acetylation activity towards histone H3K14 is a player in the regulatory processes underlying adaptation to stress in the mature CNS.

Published
2012

21. Late-onset familial neurohypophyseal diabetes insipidus due to a novel mutation in the AVP gene

Author

Jendle, Johan, Christensen, Jane H., Kvistgaard, Helene, Gregersen, Niels, Rittig, Søren, Jendle, Johan, Christensen, Jane H., Kvistgaard, Helene, Gregersen, Niels, and Rittig, Søren

Abstract

Objective: Familial neurohypophyseal diabetes insipidus (FNDI) is mainly an autosomal dominant inherited disorder presenting with severe polydipsia and polyuria in early childhood. In this study, we aimed to determine the molecular genetics and clinical characteristics of a large Swedish-Norwegian family presenting with very late-onset autosomal dominant FNDI. Patients: Six probands with a history of developing polyuria and polydipsia during adolescence were studied. Measurements: Information on family demography was collected by personal interview with family members. The genetic cause of FNDI was identified by DNA sequencing analysis of the coding regions of the AVP gene. The clinical characteristics were determined by the measurement of basal urine production and osmolality as well as by measurements of concurrent levels of plasma AVP, plasma osmolality, and urine osmolality during fluid deprivation and bolus injection of DDAVP. The integrity of the neurohypophysis was evaluated by magnetic resonance imaging. Results: The mean age of encountering the first clinical symptoms in the family was 14·8 years (range 3-30 years) (n = 17). All six affected subjects investigated were heterozygous for a novel mutation in the AVP gene (g.1848C>T) predicting a p.Pro84Leu substitution in the AVP precursor protein. We found partial deficiency in evoked AVP secretion during fluid deprivation in one subject and complete deficiency in another. The pituitary bright spot was absent in all six affected subjects studied. Conclusion: A novel mutation in the AVP gene predicted to cause a neurophysin II dimerization defect is causing surprisingly late onset of FNDI in a large, six generation, Swedish-Norwegian family. The mutation is associated with both complete and partial deficiency in evoked AVP secretion during fluid deprivation in patients who have suffered from FNDI for decades.

Published
2012
Full Text
View/download PDF

22. Skewed X-chromosome inactivation causing diagnostic misinterpretation in congenital nephrogenic diabetes insipidus

Author

Faerch, Mia, Corydon, Thomas J., Rittig, Søren, Christensen, Jane H., Hertz, Jens Michael, Jendle, Johan, Faerch, Mia, Corydon, Thomas J., Rittig, Søren, Christensen, Jane H., Hertz, Jens Michael, and Jendle, Johan

Abstract

OBJECTIVE: To establish the clinical phenotype and genetic background in a family with diabetes insipidus. MATERIAL AND METHODS: The subjects were a sister and brother, aged 34 and 27 years, respectively, with a history of polyuria since infancy. Clinical testing confirmed a diagnosis of congenital nephrogenic diabetes insipidus (CNDI) in both. Samples of purified genomic DNA were analysed. RESULTS: The sequence of the entire coding region of the AQP2 gene as well as the AVPR2 gene was determined. Sequence analysis revealed no variations in the AQP2 gene. A missense variation in exon 2 of the AVPR2 gene (g.685G>A), predicting a p.Asp85Asn substitution, was identified in the X-chromosome of the affected male and one allele in the sister and the asymptomatic mother. The p.Asp85Asn variation in AVPR2 is known to cause CNDI, and has previously been described as inducing a partial phenotype treatable with dDAVP. However, in this family dDAVP had no influence on urine osmolality, whereas combination therapy with indomethacin and hydrochlorothiazide increased urine osmolality to 299 mosm/l in the proband. A skewed X-inactivation pattern (93%) occurring in the normal X allele was recognized in the sister. CONCLUSIONS: This study demonstrates the effect of skewed X-chromosome inactivation associated with X-linked CNDI. Polydipsia in early childhood could be due to X-linked CNDI despite affecting both genders. The significant heterogeneity in the clinical phenotype in CNDI carries a risk of diagnostic misinterpretation and emphasizes the need for genetic characterization. Treatment combining indomethacin and hydrochlorothiazide results in a marked response on both urine output and urine osmolality., Research funders:Karen Elise Jensen FundNovo Nordisk FoundationAarhus University, Denmark

Published
2010
Full Text
View/download PDF

25. Diverse vasopressin V2 receptor functionality underlying partial congenital nephrogenic diabetes insipidus.

Author

Færch, Mia, Christensen, Jane H., Rittig, Søren, Johansson, Jan-Ove, Gregersen, Niels, de Zegher, Francis, and Corydon, Thomas J.

Subjects
*VASOPRESSIN, *ACUTE kidney failure, *PHENOTYPES, *CONFOCAL microscopy, *LIGAND binding (Biochemistry), *CELLULAR signal transduction, *DIABETES risk factors
Abstract

X-linked congenital nephrogenic diabetes insipidus (CNDI) is characterized by a defective renal response to the antidiuretic hormone (AVP) due to variations in the arginine vasopressin receptor 2 (A VPR2) gene. In a unique group of patients, the renal insensitivity to the effects of AVP is incomplete resulting in a partial phenotype. To investigate the molecular defects, two previously published variations in the AVPR2 gene, known to cause a partial CNDI phenotype, were expressed in transiently transfected human embryonic kidney cells. One variation (p.Arg104Cys) is located in the first extracellular loop and the other variation (p.Ser329Arg) is located in the intracellular COOH terminal of the receptor protein. Western blotting showed almost equal amounts of WT-V2R and Arg104Cys-V2R protein at steady state, whereas the level of Ser329Arg-V2R protein was lower. Confocal microscopy established that WT-V2R and Arg104Cys-V2R are localized on the cellular surface while the Ser329Arg-V2R primarily accumulates within the endoplasmic reticulum resulting in reduced surface expression. Ligand binding analysis demonstrated that the Bmax for cells expressing Arg104Cys-V2R and Ser329ArgV2R were 14.8- and 2.5-fold lower than Bmax for WT-V2R, respectively. AVP affinity (1/Kd) for WT-V2R and the Ser329Arg-V2R was similar while 1/Kd for Arg104Cys-V2R was increased, cAMP assay revealed that cells expressing p.Arg104Cys-V2R or p.Ser329ArgV2R produced 1.7- and 6.8-fold lower amounts of cAMP compared with WT-V2R, respectively. In conclusion, ligand binding and signal transduction capability are dependent on localization of the amino acid variation. Striking divergences at the level of receptor functionality may thus underlie similar clinical phenotypes in CNDI. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

26. Six novel mutations in the arginine vasopressin gene in 15 kindreds with autosomal dominant familial neurohypophyseal diabetes insipidus give further insight into the pathogenesis.

Author

Christensen, Jane H., Siggaard, Charlotte, Corydon, Thomas J., deSanctis, Luisa, Kovacs, Laszlo, Robertson, Gary L., Gregersen, Niels, and Rittig, Søren

Subjects
*GENETIC mutation, *DIABETES, *FAMILIAL diseases, *VASOPRESSIN, *ARGININE, *GENES, *NEUROPHYSINS
Abstract

Autosomal dominant familial neurohypophyseal diabetes insipidus (adFNDI) is caused by postnatal arginine vasopressin (AVP) deficiency resulting from mutations in the AVP gene encoding the AVP pre-prohormone. To advance the understanding of adFNDI further, we have searched for mutations in the AVP gene in 15 unrelated kindreds in which diabetes insipidus appeared to be segregating. In nine kindreds, seven different previously described mutations were identified. In each of the other six kindreds, unique novel mutations were identified. Two of these (225A>G and 227G>A) change a nucleotide in the translation initiation codon of the signal peptide, whereas the other four (1797T>C, 1884G>A, 1907T>G, and 2112C>G) predict amino-acid substitutions in the neurophysin II moiety of the AVP prohormone, namely V67A (NP36), G96D (NP65), C104G (NP73), and C116W (NP85). Among these, the mutation predicting the V67A (NP36) substitution is remarkable. It affects a region of the neurophysin II not affected by any other mutations, produces only a minor change, and its inheritance suggests an incomplete penetrance. Our findings both confirm and further extend the mutation pattern that has emerged in adFNDI, suggesting that the mutations affect amino-acid residues known or reasonably presumed to be important for the proper folding and/or dimerization of the neurophysin II moiety of the AVP prohormone.European Journal of Human Genetics (2004) 12, 44-51. doi:10.1038/sj.ejhg.5201086 Published online 3 December 2003 [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

27. Limb-girdle muscular dystrophy 2I: phenotypic variability within a large consanguineous Bedouin family associated with a novel FKRP mutation.

Author

Christensen, Jane H., Siggaard, Charlotte, Corydon, Thomas J., deSanctis, Luisa, Kovacs, Laszlo, Robertson, Gary L, Gregersen, Niels, and Rittig, Søren

Subjects
*MUSCULAR dystrophy, *PHENOTYPES, *FAMILIES, *GENOTYPE-environment interaction, *GENETIC mutation, *BEDOUINS
Abstract

Limb-girdle muscular dystrophies (LGMDs) represent a group of diseases characterized mainly by muscle wasting of the upper and lower limbs, with a wide range of clinical severity. The clinical heterogeneity is paralleled by molecular heterogeneity; each of the 10 forms of autosomal-recessive LGMD recognized to date is caused by mutations in a distinct gene. In a large consanguineous Bedouin tribe living in northern Israel, 15 individuals affected by LGMD demonstrate an autosomal recessive pattern of inheritance. A genome-wide screen followed by fine mapping in this family revealed linkage to a region on chromosome 19 harboring the fukutin-related protein gene (FKRP), with a maximal LOD score of 4.8 for D19S902. FKRP, encoding a putative glycosyltransferase, has been implicated in causing congenital muscular dystrophy 1C (MDC1C), and has recently been shown to be mutated in LGMD2I. We identified a novel missense mutation in exon 4 of the FKRP gene in all the patients studied. Although all affected individuals were homozygous for the same mutation, a marked phenotypic variability was apparent within the family. This finding may suggest a role of modifier genes and environmental factors in LGMD2I. Moreover, the demonstration that an identical, novel mutation in the FKRP gene can cause a muscle disease of either a congenital onset or of a later onset within a single family provides clinical support to the molecular evidence, suggesting that MDC1C and LGMD2I are overlapping ends of one and the same entity.European Journal of Human Genetics (2004) 12, 38-43. doi:10.1038/sj.ejhg.5201087 Published online 1 October 2003 [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

28. Brain volumetric alterations accompanied with loss of striatal medium-sized spiny neurons and cortical parvalbumin expressing interneurons in Brd1+/− mice.

Author

Qvist, Per, Eskildsen, Simon F., Hansen, Brian, Baragji, Mohammad, Ringgaard, Steffen, Roovers, Jolien, Paternoster, Veerle, Molgaard, Simon, Corydon, Thomas Juhl, Stødkilde-Jørgensen, Hans, Glerup, Simon, Mors, Ole, Wegener, Gregers, Nyengaard, Jens R., Børglum, Anders D., and Christensen, Jane H.

Abstract

Schizophrenia is a common and severe mental disorder arising from complex gene-environment interactions affecting brain development and functioning. While a consensus on the neuroanatomical correlates of schizophrenia is emerging, much of its fundamental pathobiology remains unknown. In this study, we explore brain morphometry in mice with genetic susceptibility and phenotypic relevance to schizophrenia (Brd1+/− mice) using postmortem 3D MR imaging coupled with histology, immunostaining and regional mRNA marker analysis. In agreement with recent large-scale schizophrenia neuroimaging studies, Brd1+/− mice displayed subcortical abnormalities, including volumetric reductions of amygdala and striatum. Interestingly, we demonstrate that structural alteration in striatum correlates with a general loss of striatal neurons, differentially impacting subpopulations of medium-sized spiny neurons and thus potentially striatal output. Akin to parvalbumin interneuron dysfunction in patients, a decline in parvalbumin expression was noted in the developing cortex of Brd1+/− mice, mainly driven by neuronal loss within or near cortical layer V, which is rich in corticostriatal projection neurons. Collectively, our study highlights the translational value of the Brd1+/− mouse as a pre-clinical tool for schizophrenia research and provides novel insight into its developmental, structural, and cellular pathology. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

29. Diverse vasopressin V2 receptor functionality underlying partial congenital nephrogenic diabetes insipidus.

Author

Faerch M, Christensen JH, Rittig S, Johansson JO, Gregersen N, de Zegher F, and Corydon TJ

Subjects
Arginine, Blotting, Western, Cell Line, Chromosomes, Human, X, Cysteine, DNA, Complementary, Diabetes Insipidus, Nephrogenic genetics, Genetic Linkage, Humans, Microscopy, Confocal, Phenotype, Protein Biosynthesis, Serine, Tissue Distribution, Transcription, Genetic, Transfection, Diabetes Insipidus, Nephrogenic metabolism, Genetic Variation, Kidney metabolism, Receptors, Vasopressin genetics, Receptors, Vasopressin metabolism
Abstract

X-linked congenital nephrogenic diabetes insipidus (CNDI) is characterized by a defective renal response to the antidiuretic hormone (AVP) due to variations in the arginine vasopressin receptor 2 (AVPR2) gene. In a unique group of patients, the renal insensitivity to the effects of AVP is incomplete resulting in a partial phenotype. To investigate the molecular defects, two previously published variations in the AVPR2 gene, known to cause a partial CNDI phenotype, were expressed in transiently transfected human embryonic kidney cells. One variation (p.Arg104Cys) is located in the first extracellular loop and the other variation (p.Ser329Arg) is located in the intracellular COOH terminal of the receptor protein. Western blotting showed almost equal amounts of WT-V2R and Arg104Cys-V2R protein at steady state, whereas the level of Ser329Arg-V2R protein was lower. Confocal microscopy established that WT-V2R and Arg104Cys-V2R are localized on the cellular surface while the Ser329Arg-V2R primarily accumulates within the endoplasmic reticulum resulting in reduced surface expression. Ligand binding analysis demonstrated that the B(max) for cells expressing Arg104Cys-V2R and Ser329Arg-V2R were 14.8- and 2.5-fold lower than B(max) for WT-V2R, respectively. AVP affinity (1/K(d)) for WT-V2R and the Ser329Arg-V2R was similar while 1/K(d) for Arg104Cys-V2R was increased. cAMP assay revealed that cells expressing p.Arg104Cys-V2R or p.Ser329Arg-V2R produced 1.7- and 6.8-fold lower amounts of cAMP compared with WT-V2R, respectively. In conclusion, ligand binding and signal transduction capability are dependent on localization of the amino acid variation. Striking divergences at the level of receptor functionality may thus underlie similar clinical phenotypes in CNDI.

Published
2009
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results