Cord Serum Calcitriol Inversely Correlates with Maternal Blood Pressure in Urinary Tract Infection-Affected Pregnancies: Sex-Dependent Immune Implications.
Andrea Olmos-Ortiz, Alberto Olivares-Huerta, Janice Garc��a-Quiroz, Euclides Avila, Ali Halhali, Braulio Quesada-Reyna, Fernando Larrea, Ver��nica Zaga-Clavellina, Lorenza D��az
Author Information
Andrea Olmos-Ortiz: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico. ORCID
Alberto Olivares-Huerta: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico.
Janice Garc��a-Quiroz: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico. ORCID
Euclides Avila: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico. ORCID
Ali Halhali: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico.
Braulio Quesada-Reyna: Divisi��n de Obstetricia, UMAE Hospital de Gineco-Obstetricia No. 4 "Luis Castelazo Ayala", IMSS, Rio de la Magdalena 289, Tizap��n San ��ngel, Progreso Tizap��n, ��lvaro Obreg��n, Ciudad de Mexico 01090, Mexico.
Fernando Larrea: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico.
Ver��nica Zaga-Clavellina: Departamento de Fisiolog��a y Desarrollo Celular, Instituto Nacional de Perinatolog��a Isidro Espinosa de los Reyes, Montes Urales 800, Lomas-Virreyes, Lomas de Chapultepec IV Secci��n, Miguel Hidalgo, Ciudad de Mexico 11000, Mexico. ORCID
Lorenza D��az: Departamento de Biolog��a de la Reproducci��n "Dr. Carlos Gual Castro", Instituto Nacional de Ciencias M��dicas y Nutrici��n Salvador Zubir��n, Av. Vasco de Quiroga No. 15, Belisario Dom��nguez Secci��n XVI, Tlalpan, Ciudad de Mexico 14080, Mexico. ORCID
Urinary tract infections (UTI) during pregnancy are frequently associated with hypertensive disorders, increasing the risk of perinatal morbidity. Calcitriol, vitamin D's most active metabolite, has been involved in blood pressure regulation and prevention of UTIs, partially through modulating vasoactive peptides and antimicrobial peptides, like cathelicidin. However, nothing is known regarding the interplay between placental calcitriol, cathelicidin, and maternal blood pressure in UTI-complicated pregnancies. Here, we analyzed the correlation between these parameters in pregnant women with UTI and with normal pregnancy (NP). Umbilical venous serum calcitriol and its precursor calcidiol were significantly elevated in UTI. Regardless of newborn's sex, we found strong negative correlations between calcitriol and maternal systolic and diastolic blood pressure in the UTI cohort ( < 0.002). In NP, this relationship was observed only in female-carrying mothers. UTI-female placentas showed higher expression of cathelicidin and CYP27B1, the calcitriol activating-enzyme, compared to male and NP samples. Accordingly, cord-serum calcitriol from UTI-female neonates negatively correlated with maternal bacteriuria. Cathelicidin gene expression positively correlated with gestational age in UTI and with newborn anthropometric parameters. Our results suggest that vitamin D deficiency might predispose to maternal cardiovascular risk and perinatal infections especially in male-carrying pregnancies, probably due to lower placental CYP27B1 and cathelicidin expression.