PMID- 24111719 OWN - NLM STAT- MEDLINE DCOM- 20150416 LR - 20161125 IS - 1476-4954 (Electronic) IS - 1476-4954 (Linking) VI - 27 IP - 12 DP - 2014 Aug TI - Macrophage infiltration and stress-signaling in omental and subcutaneous adipose tissue in diabetic pregnancies. PG - 1189-94 LID - 10.3109/14767058.2013.853734 [doi] AB - OBJECTIVE: To examine if, as in obesity, pregnancies complicated by gestational diabetes mellitus (GDM) exhibit increased macrophage infiltration and activated MAP-kinases in omental adipose tissue. METHODS: Paired omental (OM) and abdominal subcutaneous (SC) fat samples were collected from 11 GDM and 20 normal pregnancies during cesarean delivery. Tissues were stained to detect macrophages, and analyzed to assess MAP-kinases. RESULTS: OM had higher macrophage counts than SC in GDM (6.10 +/- 2.20 versus 2.53 +/- 1.45, p = 0.04), but not in normal pregnancies (p = 0.346). GDM pregnancies had more macrophages than normal pregnancies in OM (6.10 +/- 2.20 versus 1.29 +/- 0.55, p = 0.01), while only a trend was observed in SC fat (p = 0.08). Significant correlation (R = 0.619, p = 0.005) was observed between OM-macrophage infiltration and insulin resistance. Using multivariate analysis, only obesity independently associated with GDM. Expression of total p38MAP-kinase was higher in OM versus SC in both normal and GDM pregnancies, without significant differences between these groups. However, expression of activated p-p38MAP-kinase, and its upstream kinase MKK4, was comparable between fat depots. CONCLUSION: GDM pregnancies demonstrate increased macrophage infiltration to OM fat, correlating with higher insulin resistance. As in non-pregnant-patients obesity and OM macrophage infiltration may be on the same causal pathway, leading to GDM. Yet, this occurs without activation of p38MAP-kinase signaling. FAU - Harlev, Avi AU - Harlev A AD - Department of Obstetrics and Gynecology . FAU - Aricha-Tamir, Barak AU - Aricha-Tamir B FAU - Shaco-Levy, Ruthy AU - Shaco-Levy R FAU - Tarnovscki, Tania AU - Tarnovscki T FAU - Bashan, Nava AU - Bashan N FAU - Rudich, Assaf AU - Rudich A FAU - Sheiner, Eyal AU - Sheiner E FAU - Press, Fernanda AU - Press F FAU - Wiznitzer, Arnon AU - Wiznitzer A LA - eng PT - Journal Article DEP - 20131108 PL - England TA - J Matern Fetal Neonatal Med JT - The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians JID - 101136916 RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) RN - EC 2.7.12.2 (MAP Kinase Kinase 4) RN - EC 2.7.12.2 (MAP2K4 protein, human) SB - IM MH - *Abdominal Fat/immunology/metabolism MH - Adult MH - Case-Control Studies MH - *Cell Movement/immunology MH - *Diabetes, Gestational/immunology/metabolism MH - Female MH - Humans MH - MAP Kinase Kinase 4/metabolism MH - Macrophages/*physiology MH - Omentum MH - Pregnancy MH - Signal Transduction MH - *Stress, Physiological MH - *Subcutaneous Fat/immunology/metabolism MH - p38 Mitogen-Activated Protein Kinases/metabolism OTO - NOTNLM OT - Adipose tissue OT - GDM OT - macrophage infiltration EDAT- 2013/10/12 06:00 MHDA- 2015/04/17 06:00 CRDT- 2013/10/12 06:00 PHST- 2013/10/12 06:00 [entrez] PHST- 2013/10/12 06:00 [pubmed] PHST- 2015/04/17 06:00 [medline] AID - 10.3109/14767058.2013.853734 [doi] PST - ppublish SO - J Matern Fetal Neonatal Med. 2014 Aug;27(12):1189-94. doi: 10.3109/14767058.2013.853734. Epub 2013 Nov 8.