Blair R. Leavitt

Mutant huntingtin's effects on striatal gene expression in mice recapitulate changes observed in human Huntington's disease brain and do not differ with mutant huntingtin length or wild-type huntingtin dosage (2007)

Kuhn, Alexandre, Goldstein, Darlene R., Hodges, Angela, Strand, Andrew D., Sengstag, Thierry, Kooperberg, Charles, ...

To test the hypotheses that mutant huntingtin protein length and wild-type huntingtin dosage have important effects on disease-related transcriptional dysfunction, we compared the changes in mRNA in...

CAG-encoded polyglutamine length polymorphism in the human genome (2007)

Butland, Stefanie L, Devon, Rebecca S, Huang, Yong, Mead, Carri-Lyn, Meynert, Alison M, Neal, Scott J, ...

Abstract Background Expansion of polyglutamine-encoding CAG trinucleotide repeats has been identified as the pathogenic mutation in nine different genes associated with neurodegenerative disorders....

recapitulate changes (2007)

Re Kuhn, Darlene R. Goldstein, Angela Hodges, Andrew D. Str, Thierry Sengstag, Charles Kooperberg, ...

Mutant huntingtin's effects on striatal gene expression in mice

Wild-type huntingtin ameliorates striatal neuronal atrophy but does not prevent other abnormalities in the YAC128 mouse model of Huntington disease (2006)

Van Raamsdonk, Jeremy M, Pearson, Jacqueline, Murphy, Zoe, Hayden, Michael R, Leavitt, Blair R

Abstract Background Huntington disease (HD) is an adult onset neurodegenerative disorder caused by a polyglutamine expansion in the huntingtin (htt) protein. Htt function is essential for embryonic...

Familial frontotemporal dementia with neuronal intranuclear inclusions is not a polyglutamine expansion disease (2006)

Mackenzie, Ian R, Butland, Stefanie L, Devon, Rebecca S, Dwosh, Emily, Feldman, Howard, Lindholm, Caroline, ...

Abstract Background Many cases of frontotemporal dementia (FTD) are familial, often with an autosomal dominant pattern of inheritance. Some are due to a mutation in the tau- encoding gene, on...

Body weight is modulated by levels of full-length Huntingtin (2006)

Van Raamsdonk, Jeremy M., Gibson, William T., Pearson, Jacqueline, Murphy, Zoe, Lu, Ge, Leavitt, Blair R., ...

Huntington disease is an adult-onset neurodegenerative disorder that is caused by the expansion of a polyglutamine tract within the Huntingtin (htt) protein. Wild-type htt has been shown to be...

Body weight is modulated by levels of full-length huntingtin (2006)

Van Raamsdonk, Jeremy M., Gibson, William T., Pearson, Jacqueline, Murphy, Zoe, Lu, Ge, Leavitt, Blair R., ...

Huntington disease (HD) is an adult onset neurodegenerative disorder that is caused by the expansion of a polyglutamine tract within the huntingtin (htt) protein. Wild-type htt has been shown to be...

Satellog: A database for the identification and prioritization of satellite repeats in disease association studies (2005)

Missirlis, Perseus I, Mead, Carri-Lyn R, Butland, Stefanie L, Ouellette, BF Francis, Devon, Rebecca S, Leavitt, Blair R, ...

Abstract Background To date, 35 human diseases, some of which also exhibit anticipation, have been associated with unstable repeats. Anticipation has been reported in a number of diseases in which...

Loss of wild-type huntingtin influences motor dysfunction and survival in the YAC128 mouse model of Huntington disease (2005)

Van Raamsdonk, Jeremy M., Pearson, Jacqueline, Rogers, Daniel A., Bissada, Nagat, Vogl, A. Wayne, Hayden, Michael R., ...

Huntington disease (HD) is an adult-onset neurodegenerative disease caused by a toxic gain of function in the huntingtin (htt) protein. The contribution of wild-type htt function to the pathogenesis...

Selective degeneration and nuclear localization of mutant huntingtin in the YAC128 mouse model of Huntington disease (2005)

Van Raamsdonk, Jeremy M., Murphy, Zoe, Slow, Elizabeth J., Leavitt, Blair R., Hayden, Michael R.

Huntington disease (HD) is an adult onset neurodegenerative disorder that predominantly affects the striatum and cortex despite ubiquitous expression of mutant huntingtin (htt). Here we demonstrate...

Selective striatal neuronal loss in a YAC128 mouse model of Huntington disease (2003)

Slow, Elizabeth J., Van Raamsdonk, Jeremy, Rogers, Daniel, Coleman, Sarah H., Graham, Rona K., Deng, Yu, ...

An expanded CAG repeat is the underlying genetic defect in Huntington disease, a disorder characterized by motor, psychiatric and cognitive deficits and striatal atrophy associated with neuronal...

Increased Sensitivity to N-Methyl-D-Aspartate Receptor-Mediated Excitotoxicity in a Mouse Model of Huntington's Disease. (2002)

Zeron, Melinda M, Hansson, Oskar, Chen, Nansheng, Wellington, Cheryl L, Leavitt, Blair R, Brundin, Patrik, ...

Previous work suggests N-methyl-D-aspartate receptor (NMDAR) activation may be involved in degeneration of medium-sized spiny striatal neurons in Huntington's disease (HD). Here we show that these...

Increased huntingtin protein length reduces the number of polyglutamine-induced gene expression changes in mouse models of Huntington's disease (2002)

Chan, Edmond Y.W., Luthi-Carter, Ruth, Strand, Andrew, Solano, Steven M., Hanson, Sarah A., DeJohn, Molly M., ...

Both transcriptional dysregulation and proteolysis of mutant huntingtin (htt) are postulated to be important components of Huntington's disease (HD) pathogenesis. In previous studies, we demonstrated...

HIP14, a novel ankyrin domain-containing protein, links huntingtin to intracellular trafficking and endocytosis (2002)

Singaraja, Roshni R., Hadano, Shinji, Metzler, Martina, Givan, Scott, Wellington, Cheryl L., Warby, Simon, ...

Huntington disease (HD) is caused by polyglutamine [poly(Q)] expansion in the protein huntingtin (htt). Although the exact mechanism of disease progression remains to be elucidated, altered...

Absence of behavioral abnormalities and neurodegeneration in vivo despite widespread neuronal huntingtin inclusions

Slow, Elizabeth J., Graham, Rona K., Osmand, Alexander P., Devon, Rebecca S., Lu, Ge, Deng, Yu, ...

We have serendipitously established a mouse that expresses an N-terminal human huntingtin (htt) fragment with an expanded polyglutamine repeat (≈120) under the control of the endogenous human...

Wild-Type Huntingtin Reduces the Cellular Toxicity of Mutant Huntingtin In Vivo

Leavitt, Blair R., Guttman, Julian A., Hodgson, J. Graeme, Kimel, Gil H., Singaraja, Roshni, Vogl, A. Wayne, ...

We have developed yeast artificial chromosome (YAC) transgenic mice expressing normal (YAC18) and mutant (YAC46 or YAC72) human huntingtin (htt), in a developmental- and tissue-specific manner, that...

Absence of behavioral abnormalities and neurodegeneration in vivo despite widespread neuronal huntingtin inclusions

Slow, Elizabeth J., Graham, Rona K., Osmand, Alexander P., Devon, Rebecca S., Lu, Ge, Deng, Yu, ...

We have serendipitously established a mouse that expresses an N-terminal human huntingtin (htt) fragment with an expanded polyglutamine repeat (≈120) under the control of the endogenous human...

Wild-Type Huntingtin Reduces the Cellular Toxicity of Mutant Huntingtin In Vivo

Leavitt, Blair R., Guttman, Julian A., Hodgson, J. Graeme, Kimel, Gil H., Singaraja, Roshni, Vogl, A. Wayne, ...

We have developed yeast artificial chromosome (YAC) transgenic mice expressing normal (YAC18) and mutant (YAC46 or YAC72) human huntingtin (htt), in a developmental- and tissue-specific manner, that...

Huntingtin inhibits caspase-3 activation

Zhang, Yu, Leavitt, Blair R, Van Raamsdonk, Jeremy M, Dragatsis, Ioannis, Goldowitz, Dan, MacDonald, Marcy E, ...

Huntington's disease results from a mutation in the HD gene encoding for the protein huntingtin. The function of huntingtin, although beginning to be elucidated, remains largely unclear. To probe the...

A novel pathogenic pathway of immune activation detectable before clinical onset in Huntington's disease

Björkqvist, Maria, Wild, Edward J., Thiele, Jenny, Silvestroni, Aurelio, Andre, Ralph, Lahiri, Nayana, ...

Huntington's disease (HD) is an inherited neurodegenerative disorder characterized by both neurological and systemic abnormalities. We examined the peripheral immune system and found widespread...

Brain-specific Proteins Decline in the Cerebrospinal Fluid of Humans with Huntington Disease*S⃞

Fang, Qiaojun, Strand, Andrew, Law, Wendy, Faca, Vitor M., Fitzgibbon, Matthew P., Hamel, Nathalie, ...

We integrated five sets of proteomics data profiling the constituents of cerebrospinal fluid (CSF) derived from Huntington disease (HD)-affected and -unaffected individuals with genomics data...