In this review, we show Angiotensin-(1-7) as a novel Renin Angiotensin System mediator that antagonizes cardiovascular and proliferative effects of Angiotensin II and exerts complex renal actions. We also speculate the possibility of new drugs for the treatment of cardiovascular, genitourinary and hepatic diseases by interfering with ACE2-Angiotensin-(1-7)-Mas axis.
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http://dx.doi.org/10.2174/138955706776876203 | DOI Listing |
Cell Biochem Funct
December 2024
Health Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt.
The present investigation assesses ursodeoxycholic acid's efficacy (UDCA) as an ACE2 activator against gamma irradiation through activating the renin-angiotensin system's (RAS) beneficial axis, ACE2/Ang-(1-7)/Mas1 via its profitable influence on inflammation, oxidative stress, and neuronal damage caused by irradiation (IRR). Four groups of rats were treated as follows: control group, group receiving UDCA (100 mg/kg/day) for 14 days by gavage, group irradiated at 6 Gy, and group receiving UDCA post-irradiation for 14 days. The results revealed that gamma-irradiation (6 Gy) caused a substantial drop in the cerebral ACE2/Ang-(1-7)/Mas1 axis and remarkably increased the expression of cerebral inflammatory mediators: tumor necrosis factor-α (TNF-α), nuclear factor kappa-B (NF-κB), interleukin-6 (IL-6) and interleukin-1β (IL-1β) combined with significant elevation in cyclooxygenase-II (COX-II), (NADPH) oxidases (NOX4), lipooxygenase (LOX) activities and nitric oxide (NO) content.
View Article and Find Full Text PDFFront Bioeng Biotechnol
November 2024
Department of Orthopaedics, Qilu Hospital, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
Introduction: Spinal cord injury (SCI) is a severe central nervous system disorder that results in significant sensory, motor, and autonomic dysfunctions. Current surgical techniques and high-dose hormone therapies have not achieved satisfactory clinical outcomes, highlighting the need for innovative therapeutic strategies.
Methods: In this study, we developed a Dual-Phase Silk Fibroin Methacryloyl (SilMA) hydrogel scaffold (DPSH) that incorporates PLGA microspheres encapsulating neurotrophin-3 (NT-3) and angiotensin (1-7) (Ang-(1-7)).
Hypertension
December 2024
Research Institute of McGill University Health Centre, Canada (A.C.M., L.L.C., Y.N., S.A.L., R.M.T.).
Background: Ang-(1-7) (angiotensin (1-7)) via MasR (Mas receptor) opposes vaso-injurious actions of Ang II (angiotensin II) as shown in models of pulmonary hypertension. The underlying mechanisms remain unclear. We hypothesized cross talk between Ang-(1-7) and the protective arm of the ET-1 (endothelin-1) system involving MasR and ETR (endothelin receptor type B).
View Article and Find Full Text PDFPharmacol Ther
January 2025
William Harvey Research Institute, Queen Mary University of London, London, United Kingdom; Centre for inflammation and Therapeutic Innovation, Queen Mary University of London, London, United Kingdom.
This review summarizes findings presented at the 19th World Congress of Basic & Clinical Pharmacology 2023 (Glasgow, Scotland, July 3rd to 7th, 2023) from 8 speakers in the field of resolution of inflammation, resolution pharmacology and resolution biology. It is now accepted that the acute inflammatory response is protective to defend the host against infection or tissue injury. Acute inflammation is self-limited and programmed to be limited in space and time: this is achieved through endogenous resolution processes that ensure return to homeostasis.
View Article and Find Full Text PDFPhytother Res
December 2024
Department of Cardiovascular Medicine, Shanghai Institute of Hypertension, Shanghai Key Laboratory of Hypertension, National Research Centre for Translational Medicine, Ruijin Hospital, Shanghai Jiatong University School of Medicine, Shanghai, China.
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