TY - JOUR
T1 - Multispectral imaging for MicroChip electrophoresis enables point-of-care newborn hemoglobin variant screening
AU - An, Ran
AU - Huang, Yuning
AU - Rocheleau, Anne
AU - Avanaki, Alireza
AU - Thota, Priyaleela
AU - Zhang, Qiaochu
AU - Man, Yuncheng
AU - Sekyonda, Zoe
AU - Segbefia, Catherine I.
AU - Dei-Adomakoh, Yvonne
AU - Mensah, Enoch
AU - Ohene-Frempong, Kwaku
AU - Odame, Isaac
AU - Owusu-Ansah, Amma
AU - Gurkan, Umut A.
N1 - Publisher Copyright:
© 2022 The Author(s)
PY - 2022/12
Y1 - 2022/12
N2 - Hemoglobin (Hb) disorders affect nearly 7% of the world's population. Globally, around 400,000 babies are born annually with sickle cell disease (SCD), primarily in sub-Saharan Africa where morbidity and mortality rates are high. Screening, early diagnosis, and monitoring are not widely accessible due to technical challenges and cost. We hypothesized that multispectral imaging will allow sensitive hemoglobin variant identification in existing affordable paper-based Hb electrophoresis. To test this hypothesis, we developed the first integrated point-of-care multispectral Hb variant test: Gazelle-Multispectral. Here, we evaluated the accuracy of Gazelle-Multispectral for Hb variant newborn screening in 265 newborns with known hemoglobin variants including hemoglobin A (Hb A), hemoglobin F (Hb F), hemoglobin S (Hb S) and hemoglobin C (Hb C). Gazelle-Multispectral detected levels of Hb A, Hb F, Hb S, and Hb C/E/A2, demonstrated high correlations with the results reported by laboratory gold standard high performance liquid chromatography (HPLC) at Pearson Correlation Coefficient = 0.97, 0.97, 0.93, and 0.95. Gazelle-Multispectral demonstrated accuracy of 96.8% in subjects of 0–3 days, and 96.9% in newborns. The ability to obtain accurate results on newborn samples suggest that Gazelle-Multispectral can be suitable for large-scale newborn screening and for diagnosis of SCD in low resource settings.
AB - Hemoglobin (Hb) disorders affect nearly 7% of the world's population. Globally, around 400,000 babies are born annually with sickle cell disease (SCD), primarily in sub-Saharan Africa where morbidity and mortality rates are high. Screening, early diagnosis, and monitoring are not widely accessible due to technical challenges and cost. We hypothesized that multispectral imaging will allow sensitive hemoglobin variant identification in existing affordable paper-based Hb electrophoresis. To test this hypothesis, we developed the first integrated point-of-care multispectral Hb variant test: Gazelle-Multispectral. Here, we evaluated the accuracy of Gazelle-Multispectral for Hb variant newborn screening in 265 newborns with known hemoglobin variants including hemoglobin A (Hb A), hemoglobin F (Hb F), hemoglobin S (Hb S) and hemoglobin C (Hb C). Gazelle-Multispectral detected levels of Hb A, Hb F, Hb S, and Hb C/E/A2, demonstrated high correlations with the results reported by laboratory gold standard high performance liquid chromatography (HPLC) at Pearson Correlation Coefficient = 0.97, 0.97, 0.93, and 0.95. Gazelle-Multispectral demonstrated accuracy of 96.8% in subjects of 0–3 days, and 96.9% in newborns. The ability to obtain accurate results on newborn samples suggest that Gazelle-Multispectral can be suitable for large-scale newborn screening and for diagnosis of SCD in low resource settings.
KW - Genetic hemoglobin disorders
KW - Multispectral imaging
KW - Newborn screening
KW - Point-of-care diagnostics
KW - Sickle cell disease
UR - http://www.scopus.com/inward/record.url?scp=85143160012&partnerID=8YFLogxK
U2 - 10.1016/j.heliyon.2022.e11778
DO - 10.1016/j.heliyon.2022.e11778
M3 - Article
AN - SCOPUS:85143160012
SN - 2405-8440
VL - 8
JO - Heliyon
JF - Heliyon
IS - 12
M1 - e11778
ER -