Might Zika virus-associated microcephaly's severity impact deciduous tooth eruption and orofacial structures?

Integrative analysis of molecular pathways and morphological anomalies associated with congenital Zika syndrome

Congenital Zika syndrome (CZS) comprises a set of clinical manifestations that can be presented by neonates born to mothers infected by the Zika virus (ZIKV). CZS-associated phenotypes include neurological, skeletal, and systemic alterations and long-term developmental sequelae. One of the most frequently reported clinical conditions is microcephaly characterized by a reduction in head circumference and cognitive complications. Nevertheless, the associations among the diverse signaling pathways underlying CZS phenotypes remain to be elucidated. To shed light on CZS, we have extensively reviewed the morphological anomalies resulting from ZIKV infection, as well as genes and proteins of interest obtained from the published literature. With this list of genes or proteins, we performed computational analyses to explore the cellular processes, molecular mechanisms, and molecular pathways related to ZIKV infection. Therefore, in this review, we comprehensively describe the morphological abnormalities caused by congenital ZIKV infection and, through the analysis noted above, propose common molecular pathways altered by ZIKV that could explain both central nervous system and craniofacial skeletal alterations.

Access to information on oral hygiene and mothers' practices of children with microcephaly caused by Zika virus

OBJECTIVE

To verify whether access to information about oral hygiene influenced the practices of caregivers of children with microcephaly caused by Zika virus (ZIKV).

METHODS

A case series study was developed at the Mens Sana Rehabilitation Center, in the municipality of Arcoverde, Pernambuco, Brazil. The study universe included the mothers of 32 children with microcephaly caused by Zika virus. Data collection took place in the month of June 2018 and was carried out through a structured questionnaire. The variables studied comprised socioeconomic issues, habits, diet and knowledge about oral hygiene. Fisher's Exact and Pearson's Chi-square tests were used with a significance level of 5%.

RESULTS

Out of 32 individuals eligible to participate in the study, only 27 were selected. Most mothers reported receiving information about oral hygiene from their infants (63.0%). Fisher's Exact and Pearson's Chi-square tests showed that access to oral hygiene information was associated with mother's education, family income, regular visits to the dentist, frequency of tooth brushing, age at which the infant started brushing, and brushing time (p < 0.05).

CONCLUSION

Access to information about oral hygiene positively influenced the oral health care of mothers with their children with microcephaly caused by ZIKV.