contraction

Carboprost tromethamine, a synthetic 15-methyl analogue of prostaglandin F2α, effectively promotes uterine contractions and significantly reduces bleeding during and post-delivery.

Prostaglandin E2 (PGE2) is a naturally occurring hormone involved in various physiological processes, such as smooth muscle contraction and relaxation, vasodilation and constriction, blood pressure regulation, and inflammatory regulation.

L-Hyoscyamine (Daturine) functions as a non-selective, competitive antagonist of muscarinic receptors, thereby inhibiting the parasympathetic activities of acetylcholine on the salivary, bronchial, and sweat glands, as well as the eye, heart, bladder, and gastrointestinal tract. Hyoscyamine is a belladonna alkaloid derivative and the levorotatory form of racemic atropine isolated from the plants Hyoscyamus niger or Atropa belladonna, which exhibits anticholinergic activity. These inhibitory effects cause a decrease in saliva, bronchial mucus, gastric juices, and sweat. Furthermore, its inhibitory action on smooth muscle prevents bladder contraction and decreases gastrointestinal motility.

Cyclobuxine D, a steroidal alkaloid extracted from Buxus microphylla, exhibits significant bradycardia effects on rat hearts and inhibits acetylcholine and Ba++-induced longitudinal muscle contractions in isolated rabbit jejunum.

Lysipressin ([Lys8]-Vasopressin), Induces contraction of the rabbit urinary bladder smooth muscle, activate adenylate-cyclase. Lysipressin is Antidiuretic hormone that have been found in pigs and some marsupial families.

Lysipressin acetate(50-57-7(fb_acetate)) ([Lys8]-Vasopressin acetate) , Induces contraction of the rabbit urinary bladder smooth muscle, activate adenylate-cyclase. Lysipressin is Antidiuretic hormone that have been found in pigs and some marsupial families.

Litorin, an amphibian bombesin peptide derivative, suppresses nutriment, stimulates smooth muscle contraction, and enhances the secretion of gastrin, gastric acid, and pancreatic secretions.

Cytochalasin D is an actin inhibitor, the removal of actin stress fibers is crucial for the chondrogenic differentiation. It may be an inhibitor of some fertilization processes such as sperm penetration or sperm head decondensation. Cytochalasin D inhibit

Mycalolide-B is a marine sponge-derived compound that functions as a selective inhibitor of actomyosin ATPase. It effectively hinders ATP-induced contraction and Mg2+-ATPase activity in the absence of Ca2+.

Allocryptopine (Thalictrimine) induces muscle contraction and relaxation in urinary bladder and ileum, respectively.

1-Stearoyl-2-arachidonoyl-sn-glycerol (DAG) is a diacylglycerol (DAG) substrate that can be hydrolyzed to 2-arachidonic acid glycerol. 1-Stearoyl-2-arachidonoyl-sn-glycerol activates PKC, induces Ca2+ influx, and can induce tracheal smooth muscle contraction.

Sodium creatine phosphate dibasic tetrahydrate (Creatine phosphate disodium salt tetrahydrate) mainly exists in the skeletal muscles of vertebrates. It is a substrate for the determination of creatine kinase and can be used for the regeneration of ATP during skeletal muscle contraction.

Trifolirhizin exerts varying degrees of inhibition on tyrosinase-dependent melanin biosynthesis, and therefore, are candidates as skin-whitening agents.Trifolirhizin possesses potential anti-inflammatory and anti-cancer activities.Trifolirhizin shows in vitro inhibitory effects on the growth of human A2780 ovarian and H23 lung cancer cells. Trifolirhizin inhibits acetylcholine mediated airway smooth muscle (ASM) contraction or directly relaxes pre-contracted ASM independent of β 2 -adrenoceptors.

L-Hyoscyamine sulfate (Levsin Sulfate) is the sulfate salt of a belladonna alkaloid derivative and the levorotatory form of racemic atropine isolated from the plants Hyoscyamus niger or Atropa belladonna, which exhibits anticholinergic activity. Hyoscyamine functions as a non-selective, competitive antagonist of muscarinic receptors, thereby inhibiting the parasympathetic activities of acetylcholine on the salivary, bronchial, and sweat glands, as well as the eye, heart, bladder, and gastrointestinal tract. These inhibitory effects cause a decrease in saliva, bronchial mucus, gastric juices, and sweat. Furthermore, its inhibitory action on smooth muscle prevents bladder contraction and decreases gastrointestinal motility.

Oxytocin (Syntocinon) is a mammalian neuropituitary hormone, a pleiotropic hypothalamic peptide and ligand for the oxytocin receptor, which contributes to labor, lactation, and pro-social behavior. Oxytocin has the ability to stimulate mammary secretion of breast milk, promote contraction of uterine smooth muscle during labor, and facilitate mothering.

1. Sipeimine (Kashmirine) has antiasthmatic effect, on tracheal M receptor antagonist. 2. Sipeimine can make Kaba cholinergic induced contraction of tracheal strips of the dose-response curve to the right.

Aplyronine A, an actin-depolymerizing agent, exhibits antitumor and apoptosis effects. It is valuable in cancer research and studies on muscle contraction, cell motility, and cell division [1].

α-Angelica lactone has cardiotonic activity, may exert their effects by providing an increased contraction-dependent calcium pool to be released upon systolic depolarization.

13-Hydroxylupanine, a characteristic alkaloid of sweet lupins, inhibits ganglionic transmission, reduces cardiac contractility, and induces contraction of uterine smooth muscle [1].

Cotoin, a natural product isolated from the stem bark of Garcinia virgate, exhibits antispasmodic activity by reducing the tone and contraction of isolated rabbit intestine. It partially inhibits the effects of acetylcholine, trichothecenes, and BaCl on the isolated intestine.

Isopteropodine (Uncarine E) is an isoyohimbine-type octindole alkaloid isolated from Hamelia patens micropropagated and has antimicrobial activity and stimulates the immune system. Isopteropodine has antimicrobial activity and stimulates the immune system.Isopteropodine is a positive modulator of muscarinic M1 and 5-HT2 receptors and a PXR activator that induces contraction of the rat myometrium.

Bakkenolide D has anti-allergic effect, it and bakkenolide D demonstrates inhibitory effect on the trachea contraction induced by histamine in vitro, they have obvious anti-histamine activities.

Fargesone B inhibits the vascular smooth muscle contraction by suppressing the voltage- and receptor-activated calcium influxes in a nonselective manner.

Macrophylline A shows weak inhibitory action on KCl-induced contraction.