2016
DOI: 10.1080/17474086.2016.1180243
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Newborn screening for SCID: lessons learned

Abstract: In this manuscript we will discuss the following: 1) The rationale for screening newborns for SCID/sTCL; 2) The scientific basis for the use of the T cell receptor excision circle (TREC) assay in screening newborns for SCID/sTCL; 3) The published outcomes of current NBS programs. Expert commentary: 4) Some of the ethical dilemmas that occur when screening newborns for SCID. Finally, we will discuss the future directions for expanding NBS to include other primary immunodeficiencies.

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Cited by 13 publications
(10 citation statements)
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“…Newborn screening for primary immune deficiencies by TREC analysis is included in almost all programs in the United States, as well as in some other countries [7,9,[16][17][18][19]. With this methodology, patients with defects in the production of T-cells can be identified, but isolated B-cell defects escape detection.…”
Section: Discussionmentioning
confidence: 99%
“…Newborn screening for primary immune deficiencies by TREC analysis is included in almost all programs in the United States, as well as in some other countries [7,9,[16][17][18][19]. With this methodology, patients with defects in the production of T-cells can be identified, but isolated B-cell defects escape detection.…”
Section: Discussionmentioning
confidence: 99%
“…With the adoption of newborn screening for SCID, there continues to be wide variability in the criteria for recalling TCL infants for additional specimens, implementation of referral to specialists for follow-up, and the type of immunological investigations which should be performed [13,14]. Although there was no state-wide protocol in place for following these infants, referral centers in NYS commonly recalled these infants based on low CD3 T cell numbers, although they were not considered to have SCID or other medical reasons for lymphopenia, and no known T cell defects had been identified.…”
Section: Discussionmentioning
confidence: 99%
“…Whole exome sequencing may uncover new as yet undescribed reasons for lymphopenia in these infants and early efforts in this direction have been initiated in NYS. Learning the natural history of these infants and defining their underlying disorders is of potential interest for both immunology and clinical medicine [13,14]. …”
Section: Discussionmentioning
confidence: 99%
“…As primeiras manifestações aparecem precocemente, com idade de apresentação variável, mas que na maioria ocorre entre 3 e 6 meses de vida, quando os efeitos protetores das imunoglobulinas maternas começam a diminuir (Notarangelo, 2010). Clinicamente, pacientes com SCID são susceptíveis a infecções recorrentes ou oportunistas graves, atraso no crescimento e morte precoce (Buelow, Verbsky, Routes, 2016). Sem o diagnóstico e tratamento adequados, o portador de SCID vai a óbito em até 24 meses de vida (Noratangelo, 2010).…”
Section: Lista De Ilustraçõesunclassified
“…Primeiramente, a investigação deve se basear em um indivíduo com suspeita clínica de IDP baseando-se nos 10 Sinais de Alerta para Imunodeficiências Primárias em Crianças e a presença de HIV deve ser descartada. A SCID clássica tem seu diagnóstico definitivo se a criança afetada possuir menos de 2 anos de idade e número de células T CD3 + menor que 300 células por milímetro cúbico de sangue, ou com número maior de 300, porém sem células T naïve (CD3 + CD45 + ) (Buelow, Verbsky, Routes, 2016). Já o diagnóstico provável se dá em pacientes com menos de 2 anos de idade com: a) menos do que 20% de células T CD3 + com contagem absoluta de linfócitos abaixo de 3000/mm 3 e resposta linfoproliferativa a mitógenos de menor do que 10% quando comparado a um controle saudável ou, b) presença de linfócitos maternos na circulação.…”
Section: Diagnósticounclassified