rs1801282 (Pro12Ala) single nucleotide polymorphism in the PPARG gene is associated with gestational diabetes mellitus among Filipinos Maria Ruth Pineda-Cortel1,2*, Sheena Abad 1, Yvette Bailon1, Vanessa Mae Bugarin1, Ryna Zatchel Domingo1, John Lawrence Fernandez1, Trisha Claire Mendoza 1, Raphael Enrique Tiongco3