The intricate physiological and pathological diversity of the Renin-Angiotensin-Aldosterone System (RAAS) underpins its role in maintaining bodily equilibrium. This paper delves into the classical axis (Renin-ACE-Ang II-AT1R axis), the protective arm (ACE2-Ang (1-7)-MasR axis), the prorenin-PRR-MAP kinases ERK1/2 axis, and the Ang IV-AT4R-IRAP cascade of RAAS, examining their functions in both physiological and pathological states. The dysregulation or hyperactivation of RAAS is intricately linked to numerous diseases, including cardiovascular disease (CVD), renal damage, metabolic disease, eye disease, Gastrointestinal disease, nervous system and reproductive system diseases. This paper explores the pathological mechanisms of RAAS in detail, highlighting its significant role in disease progression. Currently, in addition to traditional drugs like ACEI, ARB, and MRA, several novel therapeutics have emerged, such as angiotensin receptor-enkephalinase inhibitors, nonsteroidal mineralocorticoid receptor antagonists, aldosterone synthase inhibitors, aminopeptidase A inhibitors, and angiotensinogen inhibitors. These have shown potential efficacy and application prospects in various clinical trials for related diseases. Through an in-depth analysis of RAAS, this paper aims to provide crucial insights into its complex physiological and pathological mechanisms and offer valuable guidance for developing new therapeutic approaches. This comprehensive discussion is expected to advance the RAAS research field and provide innovative ideas and directions for future clinical treatment strategies.

02 Aug 2024·South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde

From economics to health outcomes: Delving into the significance of reduced insulin prices.

Article

Author: Leuschner, M ; Steenkamp, V ; Strydom, M

The recent substantial price reductions in insulin therapy by major manufacturers prompt an examination of their impact on South Africa (SA)'s healthcare. While Eli Lilly, Novo Nordisk, and Sanofi cut prices on long-acting basal insulin, among others, significantly, these insulins are not on SA's Essential Medicines List (EML) for primary healthcare. With a high prevalence of diabetes, especially pre-diabetes, in the country, the EML's neglect of newer long-acting insulin treatments hampers effective disease management. Despite efforts by the public and private sectors, insulin therapy initiation is delayed, impacting long-term outcomes. The introduction of smart insulin pens adds a technological dimension, but concerns persist about equitable access. Urging policy-makers to re-evaluate guidelines and decolonise the EML, the article emphasises enhancing patient quality of life and reducing the disease burden.

01 Apr 2024·Current Atherosclerosis Reports

Novel Therapies for Lipoprotein(a): Update in Cardiovascular Risk Estimation and Treatment

Review

Author: Wulff, Anders Berg ; Langsted, Anne ; Nordestgaard, Børge G

PURPOSE OF REVIEWLipoprotein(a) is an important causal risk factor for cardiovascular disease but currently no available medication effectively reduces lipoprotein(a). This review discusses recent findings regarding lipoprotein(a) as a causal risk factor and therapeutic target in cardiovascular disease, it reviews current clinical recommendations, and summarizes new lipoprotein(a) lowering drugs.RECENT FINDINGSEpidemiological and genetic studies have established lipoprotein(a) as a causal risk factor for cardiovascular disease and mortality. Guidelines worldwide now recommend lipoprotein(a) to be measured once in a lifetime, to offer patients with high lipoprotein(a) lifestyle advise and initiate other cardiovascular medications. Clinical trials including antisense oligonucleotides, small interfering RNAs, and an oral lipoprotein(a) inhibitor have shown great effect on lowering lipoprotein(a) with reductions up to 106%, without any major adverse effects. Recent clinical phase 1 and 2 trials show encouraging results and ongoing phase 3 trials will hopefully result in the introduction of specific lipoprotein(a) lowering drugs to lower the risk of cardiovascular disease.

100 Deals associated with Lipoprotein a inhibitor (Eli Lilly)

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Indication	Highest Phase	Country/Location	Organization	Date
Cardiovascular Diseases	Phase 1	US	Eli Lilly & Co.	05 May 2021
Diabetes Mellitus	Phase 1	US	Eli Lilly & Co.	05 May 2021

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