Ayako Chida-Nagai, Hiroyuki Akagawa, Saori Sawai, Yue-Jiao Ma, Satoshi Yakuwa, Jun Muneuchi, Kazushi Yasuda, Hirokuni Yamazawa, Toshiyuki Yamamoto, Emi Takakuwa, Utano Tomaru, Yoshiyuki Furutani, Tatsuya Kato, Gen Harada, Kei Inai, Toshio Nakanishi, Atsushi Manabe, Atsuhito Takeda, Zhi-Cheng Jing
BACKGROUND: Peripheral pulmonary stenosis (PPS) is a condition characterized by the narrowing of the pulmonary arteries, which impairs blood flow to the lung. The mechanisms underlying PPS pathogenesis remain unclear. Thus, the aim of this study was to investigate the genetic background of patients with severe PPS to elucidate the pathogenesis of this condition. METHODS AND RESULTS: We performed genetic testing and functional analyses on a pediatric patient with PPS and Williams syndrome (WS), followed by genetic testing on 12 patients with WS and mild-to-severe PPS, 50 patients with WS but not PPS, and 21 patients with severe PPS but not WS...
April 19, 2024: Journal of the American Heart Association