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Articles 1 - 8 of 8
Full-Text Articles in Medical Genetics
Comparing Phenotypes In Patients With Idiopathic Autism To Patients With Velocardiofacial Syndrome (22q11 Ds) With And Without Autism, Wendy Kates, Kevin Antshel, Wanda Fremont, Robert Shprintzen, Leslie Strunge, Courtney Burnette, Anne Marie Higgins
Comparing Phenotypes In Patients With Idiopathic Autism To Patients With Velocardiofacial Syndrome (22q11 Ds) With And Without Autism, Wendy Kates, Kevin Antshel, Wanda Fremont, Robert Shprintzen, Leslie Strunge, Courtney Burnette, Anne Marie Higgins
Robert J. Shprintzen
At least three research groups have reported that autism is diagnosed in up to 20% of children with velocardiofacial syndrome (VCFS). However the degree of phenotypic overlap between VCFS-affected children with autism and those with idiopathic autism has not been established. The purpose of this study was to define and differentiate the behavioral phenotype of autism in samples of children with either (VCFS) or idiopathic autism. Five groups of children ages 5–15 were included in the between-group design. Parent report of autism behaviors (based on the Autism Diagnostic Interview-Revised, ADI-R) were compared between children with VCFS, children with VCFS and …
Temperament In Velocardiofacial Syndrome, Kevin Antshel, K. Stallone, Nuria Abdulsabur, Robert Shprintzen, Nancy Roizen, Anne Marie Higgins, Wendy Kates
Temperament In Velocardiofacial Syndrome, Kevin Antshel, K. Stallone, Nuria Abdulsabur, Robert Shprintzen, Nancy Roizen, Anne Marie Higgins, Wendy Kates
Robert J. Shprintzen
Background Velocardiofacial syndrome (VCFS) is a microdeletion syndrome caused by a 22q11.2 chromosomal deletion. Methods In this study, parents reported on their own temperament as well as the temperament of their child. Sixty-seven children with VCFS (mean age = 10.8, SD = 2.8; range 6–15), and age-, race- and gender-ratio matched samples of 47 community control participants (mean age = 10.4, SD = 2.6; range 6–15), and 18 sibling control participants (mean age = 12.1, SD = 1.9; range 9–15) took part in the current project. Results Children with VCFS have a temperament that may best be described as modestly …
Xk Aprosencephaly And Anencephaly In Sibs, Phillip Townes, Karen Reuter, E. Rosquete, B. Magee
Xk Aprosencephaly And Anencephaly In Sibs, Phillip Townes, Karen Reuter, E. Rosquete, B. Magee
B. Dale Magee
Recent studies have suggested a causal and pathogenetic relationship between holoprosencephaly and anencephaly. In support of the proposed relationship we report a sibship that includes anencephalic male twins and a female infant with a severe form of alobar holoprosencephaly, radial aplasia, and oligodactyly. The upper limb and brain malformations are considered to represent aprosencephaly syndrome. The coexistence of anencephaly and aprosencephaly within a sibship suggests that XK aprosencephaly syndrome may be an autosomal recessive disorder.
Global Analysis Of Gene Expression Changes During Retinoic Acid-Induced Growth Arrest And Differentiation Of Melanoma: Comparison To Differentially Expressed Genes In Melanocytes Vs Melanoma, Mary Estler, Goran Boskovic, James Denvir, Sarah Miles, Donald Primerano, Richard Niles
Global Analysis Of Gene Expression Changes During Retinoic Acid-Induced Growth Arrest And Differentiation Of Melanoma: Comparison To Differentially Expressed Genes In Melanocytes Vs Melanoma, Mary Estler, Goran Boskovic, James Denvir, Sarah Miles, Donald Primerano, Richard Niles
James Denvir
BACKGROUND: The incidence of malignant melanoma has significantly increased over the last decade. Some of these malignancies are susceptible to the growth inhibitory and pro-differentiating effects of all-trans-retinoic acid (RA). The molecular changes responsible for the biological activity of RA in melanoma are not well understood. RESULTS: In an analysis of sequential global gene expression changes during a 4-48 h RA treatment of B16 mouse melanoma cells, we found that RA increased the expression of 757 genes and decreased the expression of 737 genes. We also compared the gene expression profile (no RA treatment) between non-malignant melan-a mouse melanocytes and …
A Novel Transgenic Line Of Mice Exhibiting Autosomal Recessive Male-Specific Lethality And Non-Alcoholic Fatty Liver Disease, Vincent Sollars, Benjamin Mcentee, Julie Engiles, Jay Rothstein, Arthur Buchberg
A Novel Transgenic Line Of Mice Exhibiting Autosomal Recessive Male-Specific Lethality And Non-Alcoholic Fatty Liver Disease, Vincent Sollars, Benjamin Mcentee, Julie Engiles, Jay Rothstein, Arthur Buchberg
Vincent E Sollars
We have isolated a Meis1a transgenic mouse line exhibiting recessive male-specific lethality and nonalcoholic fatty liver disease (NAFLD), which coincides with pubescence and is androgen-dependent. The phenotype is due to disruption of an endogenous locus, since other Meis1a transgenic lines do not exhibit these phenotypes. Necropsy analysis revealed hepatic microvesicular steatosis in pubescent male homozygous mice, which is absent in transgenic females. The transgene insertion site was localized to chromosome 1 and further refined by cloning the flanking regions. Sequence analysis shows that the integration site disrupts a putative metallo-b-lactamase gene with a 21.3 kb deletion encompassing exons 5–7.
Persistent Infections And Immunity In Cystic Fibrosis, Hongwei Yu, Nathan Head
Persistent Infections And Immunity In Cystic Fibrosis, Hongwei Yu, Nathan Head
Hongwei Yu
Cystic fibrosis (CF) is the most common autosomal recessive lethal disease in the Caucasian population. Chronic respiratory infections with Pseudomonas aeruginosa, neutrophil-dominated airway inflammation and progressive lung damage are the major causes of morbidity and mortality in CF. Two persistent infection phenotypes expressed by this bacterium are biofilm and mucoidy. Biofilm, also called the microcolony mode of growth is the surface-associated adherent bacterial community, while mucoidy refers to a phenotype conducive to copious amounts of mucoid exopolysaccharide (MEP)/alginate that provides a matrix for mature biofilms conferring resistance to host defenses and antibiotics. Recent completion of the whole genomic sequence of …
Gene Transfer In The Lung Using Recombinant Adeno-Associated Virus, Alisha Gruntman, Christian Mueller, Terence Flotte, Guangping Gao
Gene Transfer In The Lung Using Recombinant Adeno-Associated Virus, Alisha Gruntman, Christian Mueller, Terence Flotte, Guangping Gao
Christian Mueller
Adeno-associated virus (AAV) is a small replication-deficient DNA virus belonging to the Parvovirinae family. It has a single-stranded ∼4.7-kb genome. Recombinant AAV (rAAV) is created by replacing the viral rep and cap genes with the transgene of interest along with promoter and polyadenylation sequences. The short viral inverted terminal repeats must remain intact for replication and packaging in production, as well as vector genome processing and persistence in the transduction process. The AAV capsid (serotype) determines the tissue tropism of the rAAV vector. In this unit we will discuss serotype selection for lung targeting along with the factors effecting efficient …
Intracellular Bacteria Encode Inhibitory Snare-Like Proteins., Fabienne Paumet, Jordan Wesolowski, Alejandro Garcia-Diaz, Cedric Delevoye, Nathalie Aulner, Howard A Shuman, Agathe Subtil, James E Rothman
Intracellular Bacteria Encode Inhibitory Snare-Like Proteins., Fabienne Paumet, Jordan Wesolowski, Alejandro Garcia-Diaz, Cedric Delevoye, Nathalie Aulner, Howard A Shuman, Agathe Subtil, James E Rothman
Fabienne Paumet
Pathogens use diverse molecular machines to penetrate host cells and manipulate intracellular vesicular trafficking. Viruses employ glycoproteins, functionally and structurally similar to the SNARE proteins, to induce eukaryotic membrane fusion. Intracellular pathogens, on the other hand, need to block fusion of their infectious phagosomes with various endocytic compartments to escape from the degradative pathway. The molecular details concerning the mechanisms underlying this process are lacking. Using both an in vitro liposome fusion assay and a cellular assay, we showed that SNARE-like bacterial proteins block membrane fusion in eukaryotic cells by directly inhibiting SNARE-mediated membrane fusion. More specifically, we showed that …