{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T14:35:17Z","timestamp":1777473317023,"version":"3.51.4"},"reference-count":29,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2023,7,19]],"date-time":"2023-07-19T00:00:00Z","timestamp":1689724800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Molec Gen &amp; Gen Med"],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Pyruvate kinase deficiency (PKD) is a rare congenital hemolytic anemia. Here, we\u00a0summarized the clinical features and laboratory examinations of four Chinese children with PKD and analyze genomic mutations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>Collected and analyzed the clinical data of all children and their parents and completed the relevant laboratory examinations of all children. Analyzed the sequences of related genes in children by second\u2010generation sequencing technology and verified the suspected mutations in children's family by Sanger sequencing method or second\u2010generation sequencing technology.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of six mutations in gene PKLR were detected in four cases. Except for c.1510C&gt;T (P1) and c.941T&gt;C (P2 and P4), which had been reported in previous studies, the other four novel gene mutations were reported for the first time, including a rare homozygous mutation with large fragment deletion. All those gene mutations cause changes in the amino acids encoded by the gene, as well as subsequent changes in protein structure or loss of function.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Compound heterozygous or homozygous mutations in the coding region of PKLR gene are the causes of PKD in these four Chinese children. The second\u2010generation sequencing technology is an effective means to diagnose PKD. The mutations of c.457\u2010c.462delATCGCC, c.1297T&gt;C, c.1096C&gt;T and Exon4\u201010del of PKLR reported in this article have not been included in the Thousand Genome Database, dbSNP(v138) and ExAC Database. The PKLR gene mutations found in these children with PKD can provide references for further research of the genetic characteristics of PKD and subsequent gene therapy.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mgg3.2239","type":"journal-article","created":{"date-parts":[[2023,7,19]],"date-time":"2023-07-19T12:52:09Z","timestamp":1689771129000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Clinical outcome and genotype analysis of four Chinese children with pyruvate kinase deficiency"],"prefix":"10.1002","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6718-8229","authenticated-orcid":false,"given":"Fei","family":"Xie","sequence":"first","affiliation":[{"name":"Department of Pediatrics The First Affiliated Hospital of Naval Medical University  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lu","family":"Gan","sequence":"additional","affiliation":[{"name":"Department of 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