[Molecular identification of Hemoglobin D Punjab in cases detected in two families].
BACKGROUND
Hemoglobin D Punjab is the world most common variant hemoglobin D; in Mexico there are reports of isolated cases. Our goal is to present the clinical and molecular study in two families with HbD Punjab. The objective was to submit molecular diagnosis of two families with Hb D Punjab and clinical features.


METHODS
Family 1: neonate with maternal history of HbS carrier. Father and sister with natural variants for the evaluated mutations, mother, brother and index case were heterozygous for HbD Punjab. Family 2: neonate with positive neonatal screening for detection of abnormal hemoglobins. Mother and index case were heterozygous for HbD Punjab, homozygous for HFE H63D, and Gilbert's syndrome UGT1A1*28 heterozygous. Father heterozygous for HFE H63D and sister homozygous for such mutation. The study of two families for HbD Punjab, HbS, β-thalassemia, HFE and Gilbert syndrome was performed by real time PCR.


CONCLUSIONS
The molecular identification of HbD Punjab is an accessible methodological proposal that can adequately distinguish carriers subjects; through this method two additional cases, one initially identified as HbS.
Hematología Perinatal, Subdirección de Investigación Clínica, Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Ciudad de México, México. tallo28@gmail.com.
Patricia
P
Bouchán-Valencia
Georgina
G
Coeto-Barona
Fany
F
Rosenfeld-Mann
Rocío
R
Trueba-Gómez
Héctor
H
Baptista-González
Mariano
M
Rivera-Echegoyén
Gerardo
G
Rodríguez-Terán
Octavio
O
Martínez-Villegas
D000328:Adult; D005260:Female; D005819:Genetic Markers; D006453:Hemoglobinopathies / Q000175:diagnosis* / Q000235:genetics; D006455:Hemoglobins, Abnormal / Q000235:genetics*; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009154:Mutation; D015997:Neonatal Screening; D060888:Real-Time Polymerase Chain Reaction
D005819:Genetic Markers; D006455:Hemoglobins, Abnormal; C026237:hemoglobin D Punjab
Abnormal hemoglobins; Neonatal screening; Sickle hemoglobin