Title:Neural Receptors Associated with Depression: A Systematic Review of the Past 10 Years
Volume: 19
Issue: 6
Author(s): Alice Barros Câmara*Igor Augusto Brandão
Affiliation:
- Department of Biophysics and Pharmacology, Bioscience Center, Federal University of Rio Grande do Norte, Natal/RN,Brazil
Keywords:
Depression, receptors, cerebral cortex, basal ganglia, inflammation, cell proliferation, cell survival, mice.
Abstract: Over the past few years, experimental research has been carried out to analyze the role of
specific receptors in depression to better understand the mechanisms and pathophysiological aspects of
the disease. In this paper, we aim to investigate the receptors family most involved in depression, as
well as the tissues in which most depression related-receptors are expressed. The article also aims to
identify the functions of the main receptors predominantly associated with the pathology. This review
used a systematic methodology (Prospero; ID 168584) and followed the PRISMA guidelines. Studies
were searched in PubMed/MEDLINE, Scientific Electronic Library Online, Web of Science, and Directory
of Open Access Journals databases. Quantitative studies with conclusive results regarding receptors
involved in depression were selected. The charts and network were made using R programming
language and statistical analyses were carried out using SPSS v25 software. It can be seen that G
protein-coupled receptors family is the most studied (p < 0.05). These receptors are expressed in the
cerebral cortex, basal ganglia, and can interact with each other. A great number of studies have evaluated
receptors related to beneficial effects in the disease (p < 0.05). The inflammation response and
cell survival/proliferation are the main functions related to these receptors (p < 0.01) and behavioral
tests in mice are the main methodologies applied in these studies (p < 0.05). Finally, the most influential
protein on the network of receptors involved in depression is the Bradykinin receptor B1. G protein-
coupled receptors located in cell membranes involving especially protective effects in depression
and that expressed mainly in the cerebral cortex and basal ganglia have shown significant importance
in this review. In addition, inflammation response or cell survival/proliferation are the main functions
performed by the receptors related to depression as observed in this work.