PMID- 8032692 OWN - NLM STAT- MEDLINE DCOM- 19940815 LR - 20191101 IS - 1056-9014 (Print) IS - 1056-9014 (Linking) VI - 2 IP - 1 DP - 1994 TI - Interaction of dimethylsulfoxide and arachidonic acid with the teratogenic effects of caffeine in mice. PG - 29-35 AB - Dose-response of the teratogenic effect of caffeine (CA) and the potential role of facial hematomas in the pathogenesis of caffeine-induced cleft palate were investigated using CD1 mice treated with 150, 200, or 250 mg CA/kg i.p. on gestational day (GD) 12. Dimethylsulfoxide (DMSO; 20%) and arachidonic acid (AA, 200 mg/kg) were administered along with CA (200 mg/kg) to study their interaction with CA-induced teratogenesis and elevation in maternal glucocorticoids (MGC, measured by RIA) on GD 13 and 14. Dose-dependent increase in the incidence of cleft palate (CP) was noted in CA-exposed mice. High maternal deaths, an increased number of resorptions, gross facial hematomas (GFH), and club foot (CF) were produced only by the highest (250 mg/kg) dose of CA. Palates from all offspring with GFH were clefted at this dose level. None of the control or CA-treated nonclefted offspring had GFH or microscopic hematomas (MH). At 200 mg/kg of CA, DMSO in combination with CA actually increased CA-induced CP from 30% to 100% and also produced 100% GFH as compared to 0% by CA alone at this dose. Greater than 50% of clefted offspring without GFH, given either dose (200 or 250 mg/kg) of CA, had MH. Very high levels of MGC were present in CA-treated mice on GD 13 and 14. Although simultaneous administration of DMSO reduced the magnitude of CA-induced MGC elevations on GD 14, the MGC levels remained high for greater than 24 hours following CA exposure. Increase in maternal mortality and fetal resorptions, a decrease in the number of live pups and their body weights, and no change in the incidence of CP were seen when CA-treated mice were simultaneously exposed to AA. These results suggest a correlation between caffeine-induced FH and CP; a role for increased hematomagenic effects of DMSO in its potentiation of the cleft-palatogenic effect of caffeine; and absence of a role for AA-mediated effects of MGC in the causation of CA-induced CP and other malformations. FAU - Reddy, R V AU - Reddy RV AD - Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia 659211. FAU - Reddy, C S AU - Reddy CS FAU - Frappier, B L AU - Frappier BL FAU - Brimer, G E AU - Brimer GE FAU - Fraipier, B L AU - Fraipier BL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Nat Toxins JT - Natural toxins JID - 9212382 RN - 27YG812J1I (Arachidonic Acid) RN - 3G6A5W338E (Caffeine) RN - W980KJ009P (Corticosterone) RN - YOW8V9698H (Dimethyl Sulfoxide) SB - IM EIN - Nat Toxins 1994;2(4):252 MH - Abnormalities, Drug-Induced/*pathology MH - Animals MH - Arachidonic Acid/*toxicity MH - Caffeine/*toxicity MH - Cleft Palate/chemically induced/pathology MH - Corticosterone/blood MH - Dimethyl Sulfoxide/*toxicity MH - Drug Synergism MH - Face/pathology MH - Female MH - Hematoma/chemically induced/pathology MH - Male MH - Mice MH - Mice, Inbred Strains MH - Pregnancy EDAT- 1994/01/01 00:00 MHDA- 1994/01/01 00:01 CRDT- 1994/01/01 00:00 PHST- 1994/01/01 00:00 [pubmed] PHST- 1994/01/01 00:01 [medline] PHST- 1994/01/01 00:00 [entrez] AID - 10.1002/nt.2620020107 [doi] PST - ppublish SO - Nat Toxins. 1994;2(1):29-35. doi: 10.1002/nt.2620020107.