{Reference Type}: Journal Article
{Title}: Novel mutation of IFT140 in an infant with Mainzer-Saldino syndrome presenting with retinal dystrophy.
{Author}: Yeh TC;Niu DM;Cheng HC;Chen YR;Chen LZ;Tsui SP;Liao TE;Wang AG;Yang CF;
{Journal}: Mol Genet Metab Rep
{Volume}: 33
{Issue}: 0
{Year}: Dec 2022
{Factor}: 2.082
{DOI}: 10.1016/j.ymgmr.2022.100937
{Abstract}: A seven-month-old girl presented with bilateral roving nystagmus, hyperopia, and retinal dystrophy, and was brought to our ophthalmology clinic. Visual-evoked potentials (VEPs) were non-recordable in both the eyes. No other systemic symptoms or abnormalities were observed. Whole exome sequencing (WES) identified a compound heterozygous mutation in the IFT140 gene: c.1990G > A (p. Glu664Lys) and c.2214_2217del (p.Asp738GlufsTer47). The genetic results support a diagnosis of Mainzer-Saldino syndrome (MSS). Importantly, c.2214_2217del is a novel mutation in the IFT140 gene. Although the patient presents with isolated retinal dystrophy, it is crucial to monitor renal function overtime. Taken together, our results reinforce the role of IFT140 in syndromic ciliopathies. This report also highlights the role of combined WES approaches in identifying underlying mutations in infants presenting with isolated retinal dystrophy, considering MSS may present differently over time.