{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,12]],"date-time":"2025-11-12T05:48:44Z","timestamp":1762926524175},"reference-count":45,"publisher":"Portland Press Ltd.","issue":"2","content-domain":{"domain":["portlandpress.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2018,1,31]]},"abstract":"<jats:p>Heart failure (HF) is associated with high morbidity and mortality. Dysfunction of blood pressure and\/or volume homeostatic processes result in lower perfusion and\/or congestion. Treatment strategies exerting differential effects on pressure and volume mechanisms are critical in handling patients with HF. Atrial natriuretic peptides (ANPs) are a key hormone in maintaining circulation. It binds to NP receptor-A (NPR-A) on vasculature, kidneys and nervous system to lowers blood pressure and volume. It exerts a concentration-dependent pharmacological activity, and only increased renal excretion of water and sodium at low doses and vasodilation along with renal effects at slightly higher doses. Recently, we showed that K-Ring (conserved ring of krait venom NP) elicited only vasodilatory properties despite its ability to evoke NPR-A. Through systematic analysis of the structure\u2013function relationships of K-Ring, we have delineated the molecular switches that control vasodilatory and diuretic properties of NPs in anesthetized rats. In the process, we have identified residues that \u2014 (a) differentiate vascular and renal functions, (b) affect heart rate and pulse pressure, (c) exhibit sustained effect on vasodilatory function and (d) forceful diuresis switches. Furthermore, we have shown these residues to have equivalent effects on ANP scaffold, thereby introducing modularity in designing function-based ANP analogs. By comparing the ability of designed NPs to evoke cGMP levels, we propose a hypothetical mechanism for the observed tissue-specific effects. The present study opens new avenues in the development of suitable therapeutic agents for personalized care for HF patients.<\/jats:p>","DOI":"10.1042\/bcj20170690","type":"journal-article","created":{"date-parts":[[2017,12,12]],"date-time":"2017-12-12T01:10:39Z","timestamp":1513041039000},"page":"399-413","update-policy":"http:\/\/dx.doi.org\/10.1042\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Decoding the molecular switches of natriuretic peptides which differentiate its vascular and renal functions"],"prefix":"10.1042","volume":"475","author":[{"given":"Sindhuja","family":"Sridharan","sequence":"first","affiliation":[{"name":"Protein Science Laboratory, Department of Biological Sciences, National University of Singapore, Singapore 117543"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. 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