PMID- 22243401 OWN - NLM STAT- MEDLINE DCOM- 20121217 LR - 20131121 IS - 1440-1681 (Electronic) IS - 0305-1870 (Linking) VI - 39 IP - 4 DP - 2012 Apr TI - Role of p53-dependent placental apoptosis in the reproductive and developmental toxicities of caffeine in rodents. PG - 357-63 LID - 10.1111/j.1440-1681.2012.05676.x [doi] AB - The aim of the present study was to evaluate the role of placental apoptosis in mediating the reproductive and developmental toxicity of caffeine in rodents. Female Kunming mice were treated with caffeine (60, 120 and 240 mg/kg per day) before and during pregnancy. The conception rate, maternal bodyweight gain, placental weight and indices of fetal developmental, including the rate of intrauterine growth retardation (IUGR; i.e. the actual number of fetuses exhibiting IUGR as a percentage of the total number of fetuses), were determined on gestational day (GD) 18. Female Wistar rats were treated with caffeine (20, 60 and 180 mg/kg per day) from GD11 to GD20. The IUGR rate, maternal plasma angiotensin (Ang) II and prolactin concentrations, placental pathology, expression of angiotensin AT(1) and AT(2) receptors and apoptosis-related proteins were measured on GD20. In mice, caffeine treatment dose-dependently reduced the total conception rate, delayed conception and decreased maternal bodyweight gain, placental weight, fetal bodyweight and fetal body and tail lengths, whereas the IUGR rate was increased. In rats, caffeine treatment dose-dependently decreased placental weight and fetal bodyweight and increased the IUGR rate. Abnormal placental structures and decreased maternal plasma prolactin concentrations were observed following 180 mg/kg per day caffeine treatment, which resulted in increases in renin-angiotensin system (RAS) activity, including maternal plasma AngII concentrations and placental AT(1B) and AT(2) receptor expression, and Bax and p53 expression, but decreases in placental Bcl-2 expression. On the basis of the results of the present study, it appears that caffeine ingestion has detrimental effects on the reproductive system and fetal development in rodents that are associated with chronic activation of the maternal and placental RAS, and induction of p53-dependent placental apoptosis. CI - (c) 2012 The Authors Clinical and Experimental Pharmacology and Physiology (c) 2012 Blackwell Publishing Asia Pty Ltd. FAU - Huang, Jing AU - Huang J AD - Department of Pharmacology, Basic Medical School of Wuhan University, 185 Donghu Road, Wuhan 430071, China. FAU - Zhou, Shu AU - Zhou S FAU - Ping, Jie AU - Ping J FAU - Pan, Xiaoliang AU - Pan X FAU - Liang, Gai AU - Liang G FAU - Xu, Dan AU - Xu D FAU - Kou, Hao AU - Kou H FAU - Bao, Chong AU - Bao C FAU - Wang, Hui AU - Wang H LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Australia TA - Clin Exp Pharmacol Physiol JT - Clinical and experimental pharmacology & physiology JID - 0425076 RN - 0 (Tumor Suppressor Protein p53) RN - 3G6A5W338E (Caffeine) SB - IM MH - Animals MH - Apoptosis/*drug effects/physiology MH - Caffeine/*toxicity MH - Dose-Response Relationship, Drug MH - Female MH - Fertilization/drug effects/physiology MH - Fetal Development/*drug effects/physiology MH - Mice MH - Placenta/*drug effects/physiology MH - Pregnancy MH - Random Allocation MH - Rats MH - Rats, Wistar MH - Reproduction/*drug effects/physiology MH - Tumor Suppressor Protein p53/*physiology EDAT- 2012/01/17 06:00 MHDA- 2012/12/18 06:00 CRDT- 2012/01/17 06:00 PHST- 2012/01/17 06:00 [entrez] PHST- 2012/01/17 06:00 [pubmed] PHST- 2012/12/18 06:00 [medline] AID - 10.1111/j.1440-1681.2012.05676.x [doi] PST - ppublish SO - Clin Exp Pharmacol Physiol. 2012 Apr;39(4):357-63. doi: 10.1111/j.1440-1681.2012.05676.x.