Abstract
Objective: Tocolytic drugs are used widely in order to prevent preterm birth. Ritodrine, is the only food and drug administration (FDA) approved drug for tocolytic use. We estimated the cytogenetic effect of ritodrine administered as maternal therapy, alone or in combination with smoking, in women and their neonates.Methods: Lymphocyte and fibroblasts cultures were evaluated and three indices were analyzed; sister chromatid exchanges (SCEs), proliferation rate index (PRI) and mitotic index (MI) as well as average generation time (AGT) and population doubling time (PDT). Campothacin (CPT-11) was used as a positive control.Results: Administration of ritodrine up to a month revealed significant reduction of SCEs/cell in neonates in the presence or absence of the mutagenic agent. A statistical significant increase on SCEs, for mothers and neonates, was noticed in neonate’s lymphocytes when tocolytic therapy was over a month. Ritodrine revealed a cytoprotective action against smoking when the two factors were combined, but the synergistic action of ritodrine with smoking increased genotoxicity, cytostaticity and cytotoxicity of neonates after long administration (1–3 months).Conclusions: The time-depended genotoxic, cytostatic and cytotoxic action of ritodrine alone or in combination with smoking suggests that its administration should not exceed the time period of a month.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.