99 research outputs found
Mitschrift der Vorlesungen von [Georg Friedrich] Laissle durch B. Andelfinger um 1877
MITSCHRIFT DER VORLESUNGEN VON [GEORG FRIEDRICH] LAISSLE DURCH B. ANDELFINGER UM 1877
Mitschriften und Skripte von Vorlesungen an der Technischen Hochschule und Universität Stuttgart (-)
Mitschrift der Vorlesungen von [Georg Friedrich] Laissle durch B. Andelfinger um 1877 (Bd. 28, 1877) (1)
Einband (-)
[Wasserbau] (1)
Strombau (97)
Straßen- und Eisenbahnbau (139)
[Titel unbekannt]. Sommersemester 1877 (204)
Erdbau (304)
Farbinformation (-)
Einband ( -
Mitschrift der Vorlesung zu Technische Mechanik [von Edmund Authenrieth durch B. Andelfinger] um 1877
MITSCHRIFT DER VORLESUNG ZU TECHNISCHE MECHANIK [VON EDMUND AUTHENRIETH DURCH B. ANDELFINGER] UM 1877
Mitschriften und Skripte von Vorlesungen an der Technischen Hochschule und Universität Stuttgart (-)
Mitschrift der Vorlesung zu Technische Mechanik [von Edmund Authenrieth durch B. Andelfinger] um 1877 (Bd. 16, 1877) (1)
Einband (-)
Technische Mechanik [von Edmund Autenrieth]. 1877 (1)
Statik (1)
Allgemeine Statik der festen Körpern (1)
Statik der Bauconstructionen (25)
Allgemeine Statik der flüssigen und erdartigen Körper (103)
Zerknickungsfestigekeit (151)
[Dynamik] (195)
Hydraulik (220)
Farbinformation (-)
Einband (-
Mitschriften der Vorlesungen zu Bauconstructionen von [Conrad] Dollinger und Brückenbau von [Adolf] Hänel durch B. Andelfinger um 1877
MITSCHRIFTEN DER VORLESUNGEN ZU BAUCONSTRUCTIONEN VON [CONRAD] DOLLINGER UND BRÜCKENBAU VON [ADOLF] HÄNEL DURCH B. ANDELFINGER UM 1877
Mitschriften und Skripte von Vorlesungen an der Technischen Hochschule und Universität Stuttgart (-)
Mitschriften der Vorlesungen zu Bauconstructionen von [Conrad] Dollinger und Brückenbau von [Adolf] Hänel durch B. Andelfinger um 1877 (Bd. 20, 1877) (1)
Einband (-)
[unbekannter Titel, lose Abbildung] (-)
Bauconstructionslehre von [Conrad] Dollinger (1)
[Einleitung] (1)
Constructionen in Stein (1)
Holzconstructionen (120)
Construction der eisernen Dächer (263)
Brückenbau von [Adolf] Hänel (275)
Steinconstructionen (275)
[Eiserne Balkenbrücken] (329)
Eiserne Bogenbrücken (371)
[Hölzerne Brücken] (377)
Tunnelbau (409)
Farbinformation (-)
Einband (-
Rare copy number variants contribute to congenital left-sided heart disease
Left-sided congenital heart disease (CHD) encompasses a spectrum of malformations that range from bicuspid aortic valve to hypoplastic left heart syndrome. It contributes significantly to infant mortality and has serious implications in adult cardiology. Although left-sided CHD is known to be highly heritable, the underlying genetic determinants are largely unidentified. In this study, we sought to determine the impact of structural genomic variation on left-sided CHD and compared multiplex families (464 individuals with 174 affecteds (37.5%) in 59 multiplex families and 8 trios) to 1,582 well-phenotyped controls. 73 unique inherited or de novo CNVs in 54 individuals were identified in the left-sided CHD cohort. After stringent filtering, our gene inventory reveals 25 new candidates for LS-CHD pathogenesis, such as SMC1A, MFAP4, and CTHRC1, and overlaps with several known syndromic loci. Conservative estimation examining the overlap of the prioritized gene content with CNVs present only in affected individuals in our cohort implies a strong effect for unique CNVs in at least 10% of left-sided CHD cases. Enrichment testing of gene content in all identified CNVs showed a significant association with angiogenesis. In this first family-based CNV study of left-sided CHD, we found that both co-segregating and de novo events associate with disease in a complex fashion at structural genomic level. Often viewed as an anatomically circumscript disease, a subset of left-sided CHD may in fact reflect more general genetic perturbations of angiogenesis and/or vascular biology
Candidate gene resequencing in a large bicuspid aortic valve-associated thoracic aortic aneurysm cohort: SMAD6 as an important contributor
Bicuspid aortic valve (BAV) is the most common congenital heart defect. Although many BAV patients remain asymptomatic, at least 20% develop thoracic aortic aneurysm (TAA). Historically, BAV-related TAA was considered as a hemodynamic consequence of the valve defect. Multiple lines of evidence currently suggest that genetic determinants contribute to the pathogenesis of both BAV and TAA in affected individuals. Despite high heritability, only very few genes have been linked to BAV or BAV/TAA, such as NOTCH1, SMAD6, and MAT2A. Moreover, they only explain a minority of patients. Other candidate genes have been suggested based on the presence of BAV in knockout mouse models (e.g., GATA5, NOS3) or in syndromic (e.g., TGFBR1/2, TGFB2/3) or non-syndromic (e.g., ACTA2) TAA forms. We hypothesized that rare genetic variants in these genes may be enriched in patients presenting with both BAV and TAA. We performed targeted resequencing of 22 candidate genes using Haloplex target enrichment in a strictly defined BAV/TAA cohort (n = 441; BAV in addition to an aortic root or ascendens diameter = 4.0 cm in adults, or a Z-score = 3 in children) and in a collection of healthy controls with normal echocardiographic evaluation (n = 183). After additional burden analysis against the Exome Aggregation Consortium database, the strongest candidate susceptibility gene was SMAD6 (p = 0.002), with 2.5% (n = 11) of BAV/TAA patients harboring causal variants, including two nonsense, one in-frame deletion and two frameshift mutations. All six missense mutations were located in the functionally important MH1 and MH2 domains. In conclusion, we report a significant contribution of SMAD6 mutations to the etiology of the BAV/TAA phenotype
Common Genetic Variants Contribute to Risk of Transposition of the Great Arteries.
RATIONALE: Dextro-transposition of the great arteries (D-TGA) is a severe congenital heart defect which affects approximately 1 in 4,000 live births. While there are several reports of D-TGA patients with rare variants in individual genes, the majority of D-TGA cases remain genetically elusive. Familial recurrence patterns and the observation that most cases with D-TGA are sporadic suggest a polygenic inheritance for the disorder, yet this remains unexplored.
OBJECTIVE: We sought to study the role of common single nucleotide polymorphisms (SNPs) in risk for D-TGA.
METHODS AND RESULTS: We conducted a genome-wide association study in an international set of 1,237 patients with D-TGA and identified a genome-wide significant susceptibility locus on chromosome 3p14.3, which was subsequently replicated in an independent case-control set (rs56219800, meta-analysis P=8.6x10
CONCLUSIONS: This work provides support for a polygenic architecture in D-TGA and identifies a susceptibility locus on chromosome 3p14.3 nea
Recommended from our members
The seventh international RASopathies symposium: Pathways to a cure-expanding knowledge, enhancing research, and therapeutic discovery.
RASopathies are a group of genetic disorders that are caused by genes that affect the canonical Ras/mitogen-activated protein kinase (MAPK) signaling pathway. Despite tremendous progress in understanding the molecular consequences of these genetic anomalies, little movement has been made in translating these findings to the clinic. This year, the seventh International RASopathies Symposium focused on expanding the research knowledge that we have gained over the years to enhance new discoveries in the field, ones that we hope can lead to effective therapeutic treatments. Indeed, for the first time, research efforts are finally being translated to the clinic, with compassionate use of Ras/MAPK pathway inhibitors for the treatment of RASopathies. This biannual meeting, organized by the RASopathies Network, brought together basic scientists, clinicians, clinician scientists, patients, advocates, and their families, as well as representatives from pharmaceutical companies and the National Institutes of Health. A history of RASopathy gene discovery, identification of new disease genes, and the latest research, both at the bench and in the clinic, were discussed
Integrative analysis of genomic variants reveals new associations of candidate haploinsufficient genes with congenital heart disease
Congenital Heart Disease (CHD) affects approximately 7-9 children per 1000 live births. Numerous genetic studies have established a role for rare genomic variants at the copy number variation (CNV) and single nucleotide variant level. In particular, the role of de novo mutations (DNM) has been highlighted in syndromic and non-syndromic CHD. To identify novel haploinsufficient CHD disease genes we performed an integrative analysis of CNVs and DNMs identified in probands with CHD including cases with sporadic thoracic aortic aneurysm (TAA). We assembled CNV data from 7,958 cases and 14,082 controls and performed a gene-wise analysis of the burden of rare genomic deletions in cases versus controls. In addition, we performed mutation rate testing for DNMs identified in 2,489 parent-offspring trios. Our combined analysis revealed 21 genes which were significantly affected by rare genomic deletions and/or constrained non-synonymous de novo mutations in probands. Fourteen of these genes have previously been associated with CHD while the remaining genes (FEZ1, MYO16, ARID1B, NALCN, WAC, KDM5B and WHSC1) have only been associated in singletons and small cases series, or show new associations with CHD. In addition, a systems level analysis revealed shared contribution of CNV deletions and DNMs in CHD probands, affecting protein-protein interaction networks involved in Notch signaling pathway, heart morphogenesis, DNA repair and cilia/centrosome function. Taken together, this approach highlights the importance of re-analyzing existing datasets to strengthen disease association and identify novel disease genes
Common genetic variants contribute to risk of transposition of the great arteries
Rationale:
Dextro-transposition of the great arteries (D-TGA) is a severe congenital heart defect which affects approximately 1 in 4,000 live births. While there are several reports of D-TGA patients with rare variants in individual genes, the majority of D-TGA cases remain genetically elusive. Familial recurrence patterns and the observation that most cases with D-TGA are sporadic suggest a polygenic inheritance for the disorder, yet this remains unexplored.
Objective:
We sought to study the role of common single nucleotide polymorphisms (SNPs) in risk for D-TGA.
Methods and Results:
We conducted a genome-wide association study in an international set of 1,237 patients with D-TGA and identified a genome-wide significant susceptibility locus on chromosome 3p14.3, which was subsequently replicated in an independent case-control set (rs56219800, meta-analysis P=8.6x10-10, OR=0.69 per C allele). SNP-based heritability analysis showed that 25% of variance in susceptibility to D-TGA may be explained by common variants. A genome-wide polygenic risk score derived from the discovery set was significantly associated to D-TGA in the replication set (P=4x10-5). The genome-wide significant locus (3p14.3) co-localizes with a putative regulatory element that interacts with the promoter of WNT5A, which encodes the Wnt Family Member 5A protein known for its role in cardiac development in mice. We show that this element drives reporter gene activity in the developing heart of mice and zebrafish and is bound by the developmental transcription factor TBX20. We further demonstrate that TBX20 attenuates Wnt5a expression levels in the developing mouse heart.
Conclusions:
This work provides support for a polygenic architecture in D-TGA and identifies a susceptibility locus on chromosome 3p14.3 near WNT5A. Genomic and functional data support a causal role of WNT5A at the locus
- …