PMID- 34578784 OWN - NLM STAT- MEDLINE DCOM- 20211112 LR - 20211112 IS - 2072-6643 (Electronic) IS - 2072-6643 (Linking) VI - 13 IP - 9 DP - 2021 Aug 24 TI - Early Appearance of Epicardial Adipose Tissue through Human Development. LID - 10.3390/nu13092906 [doi] LID - 2906 AB - Background: Epicardial adipose tissue (EAT) is a visceral fat depot with unique anatomic, biomolecular and genetic features. Due to its proximity to the coronary arteries and myocardium, dysfunctional EAT may contribute to the development and progression of cardiovascular and metabolic-related adiposity-based chronic diseases. The aim of this work was to describe, by morphological techniques, the early origin of EAT. Methods: EAT adipogenesis was studied in 41 embryos from 32 gestational days (GD) to 8 gestational weeks (GW) and in 23 fetuses until full term (from 9 to 36 GW). Results: This process comprises five stages. Stage 1 appears as mesenchyme at 33-35 GD. Stage 2 is characterized by angiogenesis at 42-45 GD. Stage 3 covers up to 34 GW with the appearance of small fibers in the extracellular matrix. Stage 4 is visible around the coronary arteries, as multilocular adipocytes in primitive fat lobules, and Stage 5 is present with unilocular adipocytes in the definitive fat lobules. EAT precursor tissue appears as early as the end of the first gestational month in the atrioventricular grooves. Unilocular adipocytes appear at the eighth gestational month. Conclusions: Due to its early origin, plasticity and clinical implications, factors such as maternal health and nutrition might influence EAT early development in consequence. FAU - Perez-Miguelsanz, Juliana AU - Perez-Miguelsanz J AUID- ORCID: 0000-0001-8926-5248 AD - Departamento de Anatomia y Embriologia, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain. AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28003 Madrid, Spain. FAU - Jimenez-Ortega, Vanesa AU - Jimenez-Ortega V AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28003 Madrid, Spain. AD - Departamento de Bioquimica y Biologia Molecular, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain. FAU - Cano-Barquilla, Pilar AU - Cano-Barquilla P AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28003 Madrid, Spain. AD - Departamento de Bioquimica y Biologia Molecular, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain. FAU - Garaulet, Marta AU - Garaulet M AUID- ORCID: 0000-0002-4066-3509 AD - Departamento de Fisiologia, Universidad de Murcia, IMIB-Arrixaca, 30120 Murcia, Spain. FAU - Esquifino, Ana I AU - Esquifino AI AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28003 Madrid, Spain. AD - Departamento de Bioquimica y Biologia Molecular, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain. FAU - Varela-Moreiras, Gregorio AU - Varela-Moreiras G AUID- ORCID: 0000-0001-5158-4999 AD - Departamento de Ciencias Farmaceuticas y de la Salud, Facultad de Farmacia, Universidad CEU San Pablo, Boadilla del Monte, 28668 Madrid, Spain. FAU - Fernandez-Mateos, Pilar AU - Fernandez-Mateos P AUID- ORCID: 0000-0002-4113-4756 AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28003 Madrid, Spain. AD - Departamento de Biologia Celular, Facultad de Medicina, Universidad Complutense, 28040 Madrid, Spain. LA - eng GR - [grant to Research Groups GR105/18 and GR29/20/Universidad Complutense de Madrid/ GR - [Grants to Marta Garaulet number SAF2017-84135-R];/Ministerio de Investigacion, Desarrollo e Innovacion y fondos FEDER/ GR - [to Marta Garaulet number 20795/PI/18 and NIDDK R01DK105072]./Comunidad Autonoma de la Region de Murcia through the Seneca Foundation/ PT - Journal Article DEP - 20210824 PL - Switzerland TA - Nutrients JT - Nutrients JID - 101521595 SB - IM MH - Adipocytes/metabolism MH - Adipogenesis MH - Adipose Tissue/metabolism/*pathology MH - Cardiovascular Diseases/*epidemiology MH - Coronary Vessels/pathology MH - Female MH - *Fetal Development MH - Fetus/pathology MH - Gestational Age MH - Humans MH - Intra-Abdominal Fat/metabolism MH - Myocardium/pathology MH - Obesity/*epidemiology MH - Pericardium/metabolism/*pathology MH - Pregnancy PMC - PMC8469969 OTO - NOTNLM OT - cardiovascular disease OT - coronary arteries OT - epicardial adipose tissue development OT - human embryo and fetus OT - metabolic fetal programing COIS- The authors declare no conflict of interest. EDAT- 2021/09/29 06:00 MHDA- 2021/11/16 06:00 PMCR- 2021/08/24 CRDT- 2021/09/28 01:27 PHST- 2021/07/19 00:00 [received] PHST- 2021/08/13 00:00 [revised] PHST- 2021/08/17 00:00 [accepted] PHST- 2021/09/28 01:27 [entrez] PHST- 2021/09/29 06:00 [pubmed] PHST- 2021/11/16 06:00 [medline] PHST- 2021/08/24 00:00 [pmc-release] AID - nu13092906 [pii] AID - nutrients-13-02906 [pii] AID - 10.3390/nu13092906 [doi] PST - epublish SO - Nutrients. 2021 Aug 24;13(9):2906. doi: 10.3390/nu13092906.