Results 61 to 70 of about 2,361 (178)

RASopathies in Cardiac Disease

Annual Review of Medicine
RASopathies are a group of clinically overlapping autosomal dominant disorders caused primarily by mutations in genes that reside along the canonical Ras–mitogen-activated protein kinase signaling cascade. Though individually rare, collectively, these disorders constitute one of the largest families of congenital disorders worldwide, particularly for ...
Saravanakkumar, Chennappan, Maria Irene, Kontaridis   +1 more
openaire   +2 more sources

The Growing Spectrum of Cutaneous RASopathy [PDF]

Journal of Investigative Dermatology, 2016
Groesser et al. demonstrate that pyogenic granuloma is a RAS pathway-driven tumor. This important observation adds yet another manifestation to the growing spectrum of cutaneous "RASopathies" and raises intriguing questions about the relationship between RAS pathway activation and malignancy.
openaire   +3 more sources

Complex Genetic Architecture in RASopathies: Constitutional PTPN11 and Mosaic RIT1 Pathogenic Variants Underlying Severe Noonan Syndrome With Adult‐Onset Acute Myeloid Leukemia

American Journal of Medical Genetics Part A, Volume 200, Issue 8, Page 1879-1883, August 2026.
ABSTRACT Noonan syndrome (NS) is a genetically heterogeneous disorder characterized by a broad spectrum of clinical features resulting from dysregulation of the RAS/MAPK pathway. Although complex genotypes are increasingly recognized in NS, cases harboring two distinct pathogenic variants in different NS genes remain extremely rare.
Francesco Prevedello, Dario Seif Ali, Chiara Piccolo, Chiara Rigon, Monica Forzan, Elena Tacchetto, Roberta Palmitessa, Davide Calosci, Leonardo Salviati, Carmela Gurrieri, Eva Trevisson   +10 more
wiley   +1 more source

HRAS germline mutations impair LKB1/AMPK signaling and mitochondrial homeostasis in Costello syndrome models

The Journal of Clinical Investigation, 2022
Germline mutations that activate genes in the canonical RAS/MAPK signaling pathway are responsible for rare human developmental disorders known as RASopathies.
Laetitia Dard, Christophe Hubert, Pauline Esteves, Wendy Blanchard, Ghina Bou About, Lyla Baldasseroni, Elodie Dumon, Chloe Angelini, Mégane Delourme, Véronique Guyonnet-Dupérat, Stéphane Claverol, Laura Fontenille, Karima Kissa, Pierre-Emmanuel Séguéla, Jean-Benoît Thambo, Lévy Nicolas, Yann Herault, Nadège Bellance, Nivea Dias Amoedo, Frédérique Magdinier, Tania Sorg, Didier Lacombe, Rodrigue Rossignol   +22 more
doaj   +1 more source

De Novo Complex Genomic Rearrangement Spanning 2q31.1 in a Proband With Congenital Malformations: Genotype–Phenotype Correlation and Development of a CGR Detection Pipeline

American Journal of Medical Genetics Part A, Volume 200, Issue 8, Page 1832-1841, August 2026.
ABSTRACT The 2q31 region is commonly associated with pathogenic alleles of the HOXD cluster leading to various clinical phenotypes related to skeletal development. We present a proband with tetralogy of Fallot and multiple congenital anomalies. Genomic variant screening including an in‐house CGR detection pipeline pairing genome sequencing (GS ...
Katherine Helle, Jesse D. Bengtsson, Mira Gandhi, Christopher M. Grochowski, Ming Yin Lun, Neha Sudhir, Shalini N. Jhangiani, Fritz J. Sedlazeck, Seema R. Lalani, Neil A. Hanchard, Claudia M. B. Carvalho   +10 more
wiley   +1 more source

Nevus Sebaceus Is a Mosaic RASopathy [PDF]

Journal of Investigative Dermatology, 2013
The recent discovery that nevus sebaceus is a mosaic RASopathy represents a major breakthrough in research on epidermal nevi. In this issue, both Levinsohn et al. and Sun et al. confirm this advancement with results obtained through whole-exome sequencing.
openaire   +3 more sources

Everolimus therapy in an infant with Noonan syndrome with multiple lentigines

Annals of Pediatric Cardiology
RASopathies are the most common underlying etiology in infants with hypertrophic cardiomyopathy. An improved understanding of the downstream molecular mechanisms of the disease has enabled us to target therapy for genetic abnormalities in human cancers ...
Mani Ram Krishna, Usha Nandhini Sennaiyan   +1 more
doaj   +1 more source

Cross Sectional Study of Prenatal Diagnosis Uptake Among Individuals With Genetic Conditions

Prenatal Diagnosis, Volume 46, Issue 9, Page 1374-1384, August 2026.
ABSTRACT Objective Prenatal diagnostic genetic testing allows for early identification of significant fetal conditions and enables informed decision‐making regarding management options. The aim of this study was to assess prenatal testing practice among individuals with genetic conditions.
Ebunoluwa Ojo, Roni Zemet, Allyson Nevins, Katherine Abraham, April D. Adams   +4 more
wiley   +1 more source

Building a precision therapeutics program at a tertiary care children's hospital

Pediatric Investigation, EarlyView.
Luke Hamilton, Heidi Trinkman, Diana Carrasco, Kaitlin Smith, Kelly Vallance, Alejandra Dominguez, Danielle Miller, Megan Gibbs, Anish Ray   +8 more
wiley   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, Volume 73, Issue 7, July 2026.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source