vasodilation

Theophylline monohydrate (Quibron) appears to inhibit phosphodiesterase and prostaglandin production, regulate calcium flux and intracellular calcium distribution, and antagonize adenosine. Theophylline monohydrate is a natural alkaloid derivative of xanthine isolated from the plants Camellia sinensis and Coffea arabica. Physiologically, this agent relaxes the bronchial smooth muscle, produces vasodilation (except in cerebral vessels), stimulates the CNS, stimulates the cardiac muscle, induces diuresis, and increases gastric acid secretion; it may also suppress inflammation and improve contractility of the diaphragm.

Methyl nicotinate (methyl pyridine-3-carboxylate) is the methyl ester of that is used as an active ingredient as a rubefacient in over-the-counter topical preparations indicated for muscle and joint pain. The action of methyl nicotinate as a rubefacient is thought to involve peripheral vasodilation.

(E,E)-Farnesol ((2E,6E)-Farnesol) is a sesquiterpene acyclic alcohol produced by bacteria, protozoa, fungi, plants, and animals. (E,E)-Farnesol promotes vasodilation.

KT-362 fumarate is a novel compound that acts as an antagonist of calcium channels, potassium channels and sodium channels.KT-362 fumarate causes vasodilation by affecting intracellular calcium mobilization in atrial muscle cells.KT-362 fumarate has a relaxing effect on femoral and basilar artery strips in rabbits.

Spongosine (2-Methoxy adenosine) is a pivotal intercellular signal transmitter, which has demonstrated a diverse bioactivity profile including anti-inflammatory activity and analgesic and vasodilation properties. Spongosine is a natural product isolated from Marine organisms, and first isolated from the marine sponge Cryptotethia crypta in 1950

OR-1896 is the active metabolite of Levosimendan, a highly specific phosphodiesterase (PDE III) inhibitor, a vasodilator with partial anti-inflammatory properties that produces vasodilation in different types of blood vessels through activation of ATP-sensitive (KATP) and other potassium channels.OR-1896 can be used to study heart failure and vascular dysfunction. OR-1896 can be used to study heart failure and vascular dysfunction.

Doxylamine Succinate is a pyridine derivate histamine H1 antagonist with pronounced sedative properties. Doxylamine succinate (Decapryn) competitively blocks the histamine H1 receptor and limits the typical allergic and anaphylactic responses, including bronchoconstriction, vasodilation, increased capillary permeability, and spasmodic contraction of the gastrointestinal smooth muscle, caused by actions of histamine on bronchial and gastrointestinal smooth muscles, and on capillaries. This drug also prevents histamine-induced pain and itching of the skin and mucous membranes.

Desloratadine (Sch34117) is a long-acting piperidine derivate with selective H1 antihistaminergic and non-sedating properties. Desloratadine diminishes the typical histaminergic effects on H1-receptors in bronchial smooth muscle, capillaries and gastrointestinal smooth muscle, including vasodilation, bronchoconstriction, increased vascular permeability, pain, itching and spasmodic contractions of gastrointestinal smooth muscle. Desloratadine is used to provide symptomatic relieve of allergic symptoms.

Prostaglandin E1 (Alprostadil) is the naturally occurring prostaglandin E1 (PGE1) which displays a variety of pharmacologic actions. Prostaglandin E1 is a potent vasodilator agent that increases peripheral blood flow, inhibits platelet aggregation, and induces bronchodilation. Used in the treatment of erectile dysfunction, this agent produces corporal smooth muscle relaxation by binding to PGE receptors, resulting in the activation of adenylate cyclase and the subsequent accumulation of 3'5'-cAMP.

Adrenomedullin (1-50), rat is a 50 amino acid peptide, which induces a selective arterial vasodilation via activation of CGRP1 receptor. Adrenomedullin (1-50) is a peptide hormone with RNA expressed in rat adrenal glands, lung, kidney, heart, and spleen,

Forasartan is a non - peptide angiotensin II receptor antagonist with antihypertensive activity. Forasartan and angiotensin II compete to bind AT1 receptor subtypes in vascular smooth muscle, thereby blocking angiotensin II-mediated vasoconstriction, lead

(±)18-HETE is the racemic version of a cytochrome P450 (CYP450) metabolite of arachidonic acid. When formed by the CYP2E1 isoform, 18-HETE is comprised 100% of the (R) isomer. 18(R)-HETE dose-dependently stimulates vasodilation of the rabbit kidney, whereas 18(S)-HETE does not affect perfusion pressure. 18-HETE has negligible effects on ATPase activity. 18(R)-HETE at 1 μM completely blocks 20-HETE-induced vasoconstriction of renal arterioles.

Docosahexaenoic acid is the most abundant ω-3 fatty acid in neural tissues, especially in the brain and retina. (±)7(8)-EpDPA is an epoxide derivative of DHA that is generated by the action of cytochrome P450 epoxygenases. It is naturally occurring in plasma and brain and spinal cord tissues and is increased following dietary supplementation with ω-3 fatty acids. (±)7(8)-EpDPA and other epoxy metabolites of DHA modulate receptor and channel activities to evoke diverse effects, such as promoting vasodilation, inhibiting angiogenesis, and decreasing inflammatory and neuropathic pain. (±)7(8)-EpDPA is a substrate of soluble epoxide hydrolase (KM = 15 μM), which converts it to the corresponding diol.

(±)19(20)-EDP ethanolamide is an ω-3 endocannabinoid epoxide and cannabinoid (CB) receptor agonist (EC50s = 108 and 280 nM for CB1 and CB2, respectively). It is produced through direct epoxygenation of docosahexaenoyl ethanolamide by cytochrome P450 (CYP) epoxygenases. (±)19(20)-EDP ethanolamide (25 μM) reduces the viability of 143B metastatic osteosarcoma cells. It decreases the production of IL-6 and increases the production of IL-10 when used at concentrations ranging from 2.5 to 10 μM in BV-2 microglia stimulated by LPS and decreases LPS-induced cytotoxicity when used at concentrations ranging from 5 to 10 μM. It also decreases nitrite production when used at a concentration of 7.5 μM, an effect that can be partially reversed by the CB2 receptor antagonist AM630 and the PPARγ antagonist GW 9662 . (±)19(20)-EDP ethanolamide induces vasodilation of isolated preconstricted bovine coronary arteries (ED50 = 1.9 μM) and reduces tube formation by human microvascular endothelial cells (HMVECs) in a Matrigel assay.

1-beta-D-Arabinofuranosyluracil (Uracil 1-β-D-arabinofuranoside) isolated from the Caribbean sponge Tectitethya crypta, is a methoxyadenosine derivative. 1-beta-D-Arabinofuranosyluracil has anti-inflammatory activity, analgesic and vasodilation properties.

Dracorhodin, the primary constituent found in the sanguis draconis extract, is a flavylium compound classified within the anthocyanin family. Notably, dracorhodin possesses the ability to elicit vasodilation.

Electrolyte and fluid transport in the kidney are regulated in part by arachidonic acid and its metabolites. (±)16-HETE is the racemic version of a minor CYP450 metabolite of arachidonic acid released by the kidney upon angiotensin II stimulation. The biological activity of 16-HETE is stereospecific. 16(R)-HETE dose-dependently stimulates vasodilation of the rabbit kidney, however 16(S)-HETE does not affect perfusion pressure. At a concentration of 2 μM the (S)-enantiomer of 16-HETE inhibits proximal tubule ATPase activity by as much as 60%, whereas the (R)-isomer has negligible effects on ATPase activity.

PGF1β, a biochemical compound, functions as a pivotal mediator in inflammatory processes and plays an integral role in uterine contractions. It exhibits significant regulatory effects on platelet aggregation and vasodilation, demonstrating its critical importance in cardiovascular health. Additionally, PGF1β contributes to the regulation of kidney function and electrolyte balance, illustrating its widespread impact across various physiological systems.

Tadalafil (IC-351) is a carboline-based compound with vasodilatory activity. Tadalafil selectively inhibits the cyclic guanosine monophosphate (cGMP)-specific type 5 phosphodiesterase- (PDE-5)-mediated degradation of cGMP, which is found in the smooth muscle of the corpus cavernosa and corpus spongiosum of the penis. Inhibition of cGMP degradation by tadalafil results in prolonged muscle relaxation, vasodilation, and blood engorgement of the corpus cavernosa, and, so, prolonged penile erection.

LDN-27219 is a potent hTGase inhibitor with IC50 of 0.6 uM.

CV-1674 induced selective coronary vasodilation and had little effect on cardiac hemodynamics.

Pituitary adenylate cyclase-activating peptide (PACAP) (6-27) is a PACAP receptor antagonist with IC50 values of 1,500, 600, and 300 nM, respectively, for rat PAC1, rat VPAC1, and human VPAC2 recombinant receptors expressed in CHO cells. It binds to PACAP receptors on SH-SY5Y and SK-N-MC human neuroblastoma and T47D human breast cancer cells (IC50s = 24.5, 106, and 105 nM, respectively) and inhibits cAMP accumulation induced by PACAP (1-38) (Kis = 457, 102, and 283 nM, respectively, in SH-SY5Y, SK-N-MC, and T47D cells). In vivo, in newborn pigs, PACAP (6-27) (10 μM) inhibits vasodilation of pial arterioles induced by PACAP (1-27) and PACAP (1-38) . It also inhibits PACAP (1-27)-stimulated increases in plasma insulin and glucagon levels and pancreatic venous blood flow in dogs when administered locally to the pancreas at a dose of 500 μg.

Aviptadil Acetate (Vasoactive Intestinal Peptide acetate salt) induces pulmonary vasodilation and inhibits the proliferation of vascular SMCs and platelet aggregation. Avitadil acetate can be used for research on pulmonary fibrosis, pulmonary hypertension (PAH), and respiratory failure caused by SARS-CoV-2.

Eicosapentaenoic Acid (EPA) sodium, an orally active omega-3 long-chain polyunsaturated fatty acid (ω-3 LC-PUFA), demonstrates a unique ability to demethylate DNA, thereby facilitating the re-expression of the tumor suppressor gene CCAAT/enhancer-binding protein δ (C/EBPδ). This compound also activates the RAS/ERK/C/EBPβ pathway by demethylating H-Ras intron 1 CpG island in U937 leukemia cells and promotes the relaxation of vascular smooth muscle cells, leading to vasodilation.

Amifostine sodium is a phosphorothioate proposed as a radiation-protective agent. It causes splenic vasodilation and may block autonomic ganglia.

Nylidrin is a beta-adrenergic agonist. Nylidrin causes peripheral vasodilation, a positive inotropic effect, and increased gastric volume of gastric juice. It is used in the treatment of peripheral vascular disorders and premature labor.

Benzthiazide (Lemazide) is used in the therapy of edema and hypertension. Like other thiazides, benzthiazide accelerates water loss from the body (diuretics). They inhibit Na+/Cl- reabsorption from the distal convoluted tubules in the kidneys. Thiazides also cause loss of potassium and an increase in serum uric acid. Thiazides are often used to treat hypertension, but their hypotensive effects are not necessarily due to their diuretic activity. Thiazides have been shown to prevent hypertension-related morbidity and mortality although the mechanism is not fully understood. Thiazides cause vasodilation by activating calcium-activated potassium channels (large conductance) in vascular smooth muscles and inhibiting various carbonic anhydrases in vascular tissue.

Cromakalim (BRL 34915) is an ATP-dependent K(+) channel opener and a smooth muscle relaxant.Cromakalim has antiepileptic and anticonvulsant activity and may be useful in studies of asthma and disorders associated with vasodilation.

PRX-08066 is a selective 5-hydroxytryptamine receptor 2B (5-HT2BR, IC50= 3.4 nM) antagonist that induces selective vasodilation of pulmonary arteries.

Sulfinalol is a compound that acts as an orally active β-adrenoceptor antagonist and directly induces vasodilation [1].

1-Hydroxy-2,3,4,7-tetramethoxy-xanthone has vasodilatory action, it can cause vasodilation in the coronary artery pre-contracted with 1uM 5-hydroxytryptamine (5-HT), with the EC 50 value of 6.6±1.4 uM. 1-Hydroxy-2,3,4,7-tetramethoxyxanthone can effectivel

Adrenotensin (human) (Pro-ADM-153-185 (human)), a 153-185 fragment of the Adrenomedullin precursor peptide, is part of the Multifunctional Adrenomedullin (ADM). This 52-amino acid peptide, a member of the CGRP superfamily, plays a diverse role in vasodilation [1].

MDL-72567 is a dihydropyridine calcium antagonist that causes vasodilation and direct sinus bradycardia.

6β-PGI1 is a stable PGI2 analog resistant to hydrolysis in aqueous solutions. 6β-PGI1 has a much longer half-life than PGI2, but a greatly reduced molar potency for receptor mediated function. 6β-PGI1 has a Kact for adenylate cyclase in NCB-20 cells of 4.2 μM compared with 18 nM for PGI2. The potency for vasodilation and inhibition of platelet aggregation is about 1% of PGI2.

Magnesium Lithospermate B is a natural product activates eNOS and ameliorates endothelial dysfunction in diabetes by enhancing vasodilation in addition to reducing oxidative stress, it can protecte cardiomyocytes from ischemic injury through specific inhibition of TAB1-p38 apoptosis signaling.improves renal failure.

Fenoldopam mesylate (Corlopam mesylate) is a selective dopamine-1 receptor (DA1) agonist with natriuretic diuretic properties. It lowers blood pressure through arteriolar vasodilation.

Angiotensin 1-7 (Ang-(1-7)) acetate, an endogenous heptapeptide from the renin-angiotensin system (RAS), exhibits cardioprotective effects through its anti-inflammatory and anti-fibrotic activities in cardiac cells. It effectively inhibits purified canine ACE activity (IC 50 =0.65 μM) and serves as a local synergistic modulator of kinin-induced vasodilation by hindering ACE and facilitating nitric oxide release. Additionally, this compound prevents Ang II-induced proliferation and hypertrophy in smooth muscle cells, alongside demonstrating antiangiogenic and growth-inhibitory effects on the endothelium [1] [2] [3].

15-epiProstaglandin A1 (15-epiPGA1) is an R-stereoisomer of PGA1, belonging to the A-series prostaglandins derived from gorgonian soft corals. PGA1 is known for its effects on renal vasodilation, promoting sodium excretion through urine, and reducing arterial pressure in hypertensive individuals. However, the specific biological activities of 15-epiPGA1 have not yet been documented in published reports.

Angiotensin II is a hormone that plays an important role in regulating blood pressure. Elevated levels of angiotensin II are implicated in inducing and maintaining hypertension, and also in the development of atherosclerosis. Both of these effects are mediated by the angiotensin II type 1 (AT1) receptor. Losartan is a mammalian AT1 receptor antagonist with a Ki value of 5-20 nM. In humans, losartan effectively controls hypertension while protecting renal function. Nitric oxide (NO) causes vasodilation and also inhibits platelet and neutrophil aggregation in the endothelium. NO-losartan A possesses similar anti-hypertensive effects to losartan, with the addition of the vasodilating effects of NO release.

MK-3207 is a potent and orally bioavailable CGRP receptor antagonist (IC 50 = 0.12 nM; K i = 0.024 nM); highly selective versus human AM1, AM2, CTR, and AMY3. IC50 Value: 0.024 nM (Ki, Human CGRP) [1] As other CGRP receptor antagonists, MK-3207 shows a lower affinity for human CGRP receptors from other species, including canine and rodent. in vitro: MK-3207 is a potent antagonist of the human and rhesus monkey CGRP receptors (K(i) = 0.024 nM). in vivo: MK-3207 produced a concentration-dependent inhibition of dermal vasodilation, with plasma concentrations of 0.8 and 7 nM required to block 50 and 90% of the blood flow increase, respectively. The tritiated analog [3H]MK-3207 was used to study the binding characteristics on the human CGRP receptor. [3H]MK-3207 displayed reversible and saturable binding (K(D) = 0.06 nM), and the off-rate was determined to be 0.012 min(-1), with a t(1/2) value of 59 min [1]. After the first interim analysis, the two lowest MK-3207 doses (2.5, 5 mg) were identified as showing insufficient efficacy. Per the pre-specified adaptive design decision rule, only the 2.5-mg group was discontinued and the five highest doses (5, 10, 20, 50, 100 mg) were continued into the second stage [2]. Clinical trial: MK-3207 for the treatment of acute migraines. Phase 2b

Levobupivacaine is an amino-amide local anaesthetic drug belonging to the family of n-alkylsubstituted pipecoloxylidide. It is the S-enantiomer of bupivacaine. Levobupivacaine hydrochloride is commonly marketed by AstraZeneca under the trade name Chirocaine. Compared to bupivacaine, levobupivacaine is associated with less vasodilation and has a longer duration of action. It is approximately 13 per cent less potent (by molarity) than racemic bupivacaine.Levobupivacaine is indicated for local anaesthesia including infiltration, nerve block, ophthalmic, epidural and intrathecal anaesthesia in adults; and infiltration analgesia in children. Adverse drug reactions (ADRs) are rare when it is administered correctly. Most ADRs relate to administration technique (resulting in systemic exposure) or pharmacological effects of anesthesia, however allergic reactions can rarely occur.

Doxazosin HCl is the salt form of Doxazosin Free Base which acts by inhibiting the postsynaptic alpha(1)-adrenoceptors on vascular smooth muscle. This inhibits the vasoconstrictor effect of circulating and locally released catecholamines (epinephrine and norepinephrine), resulting in peripheral vasodilation.

Selexipag-d7 is a deuterated compound of Selexipag. Selexipag has a CAS number of 475086-01-2. Selexipag(NS-304) is prostacyclin receptor agonist that causes vasodilation in pulmonary vasculature and is used in the therapy of pulmonary arterial hypertension (PAH).

Tadalafil-d3 is a deuterated compound of Tadalafil. Tadalafil has a CAS number of 171596-29-5. Tadalafil is a carboline-based compound with vasodilatory activity. Tadalafil selectively inhibits the cyclic guanosine monophosphate (cGMP)-specific type 5 phosphodiesterase- (PDE-5)-mediated degradation of cGMP, which is found in the smooth muscle of the corpus cavernosa and corpus spongiosum of the penis. Inhibition of cGMP degradation by tadalafil results in prolonged muscle relaxation, vasodilation, and blood engorgement of the corpus cavernosa, and, so, prolonged penile erection.

Desloratadine-d5 is a deuterated compound of Desloratadine. Desloratadine has a CAS number of 100643-71-8. Desloratadine is a long-acting piperidine derivate with selective H1 antihistaminergic and non-sedating properties. Desloratadine diminishes the typical histaminergic effects on H1-receptors in bronchial smooth muscle, capillaries and gastrointestinal smooth muscle, including vasodilation, bronchoconstriction, increased vascular permeability, pain, itching and spasmodic contractions of gastrointestinal smooth muscle. Desloratadine is used to provide symptomatic relieve of allergic symptoms.

Linsidomine hydrochloride (SIN-1 chloride) is considered as a metabolite of moxidomine, with vasodilation, inhibition of platelet aggregation, and antiangina activity. In myocardial ischemia-reperfusion models, Linsidomine hydrochloride to reduce myocardial necrosis and reperfusion induced endothelial dysfunction is associated with the cavernosal mechanism of action involved in nitric oxide release.

PKG drug G1 targets PKG Iα C42. PKG drug G1 can couple to vasodilation and blood pressure lowering by a C42 PKG Iα-independent mechanism.

2-Ethylpyrazine is present in roasted coffee beans and is a volatile compound .2-Ethylpyrazine induces vasodilation through the activity of endothelium-derived relaxing factors.2-Ethylpyrazine activates NO synthesis through the action of endothelial endothelial NO synthase.2-Ethylpyrazine induces vasodilation by inducing NO release and increasing peripheral blood flow to induce vasodilation.

Bromfenac sodium hydrate (Bromfenac monosodium salt sesquihydrate) is the sodium salt form of bromfenac, a nonsteroidal anti-inflammatory drug (NSAID) with analgesic and anti-inflammatory activities. Upon ophthalmic administration, bromfenac binds to and inhibits the activity of cyclooxygenase II (COX II), an enzyme which converts arachidonic acid to cyclic endoperoxides, precursors of prostaglandins (PG). By inhibiting PG formation, bromfenac is able to inhibit PG-induced inflammation, thereby preventing vasodilation, leukocytosis, disruption of the blood-aqueous humor barrier, an increase in vascular permeability and an increase in intraocular pressure (IOP).

JNc-440 is a potent anti-hypertensive agent. jNc-440 enhances the interaction between the transient receptor potential vanilloid subtype 4 (TRPV4) and calcium-activated potassium channel 3 (KCa2.3) in endothelial cells. jNc-440 also increases vasodilation and has hypotensive activity in mice.