Adipobiology ISSN 1313-3705 (online) CONTINUING MEDICAL © Bul garian Society for Cell Biology EDUCATION PRINCIPLES OF ADIPOBIOLOGY: A GENTLE INTRODUCTION George N. Chaldakov* Department of Anatomy and Cell Biology, Medical University, Varna, Bulgaria and Institute for Advanced Study, Varna, Bulgaria Figure 1. Schematic view of cell-to-cell interactions via nexuses (gap junctions, channel junctions, communicating junc- tions, macula communicans) between the neibouring Cell A and Cell B, intercellular space of 2 - 4 nm. One channel of nexus is composed of two connexons (or hemichannels). The hexagonal structure of connexons (cross sectioned) consisting of six proteins termed connexins – Cx) is evident; an arrow runs through one of the chanells. One nexus consists of about 100 connexons. (*Grosely R, Sorgen PL. A history of gap junction structure: Hexagonal arrays to atomic resolution. Cell Commun Adhes 2013; 20. DOI:10.3109/15419061.2013.775256 *Wright JA, Richards T, Becker DL. Connexins and diabetes. Cardiol Res Pract 2012; 2012: 496904. DOI:10.1155/2012/496904) *Received 2 June 2019, revised 10 June 2019, accepted 11 June 2019. Correspondence to: Dr George N. Chaldakov, Department of Anatomy and Cell Biology, Medical University, BG-9002 Varna, Bulgaria Mobile phone: +359 888 679 204 E-mail:
[email protected] - to keep students-to-teacher communicating junctions alive and kicking (Fig. 1) 114 Principles of adipobiology: a gentle introduction CONTINUING MEDICAL EDUCATION Prologue Introduction Student – Latin, studеo – devoted to do something; studium – The biological research has already provided a wealth of eager, passion, study. knowledge about individual cellular components and their Teacher To be a teacher is profound responsibility.