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Norepinephrine
Norepinephrine
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name Norepinephrine
Price: $40 / 20mg
CAS No.: 51-41-2
Catalog No.: CFN90047
Molecular Formula: C8H11NO3
Molecular Weight: 169.18 g/mol
Purity: >=98%
Type of Compound: Alkaloids
Physical Desc.: Powder
Source: From the adrenal gland of Pig.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    Manual
Similar structural: Comparison (Web)  (SDF)
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Related Screening Libraries
Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
10 mM * 1 mL in DMSO / Inquiry / In-stock
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Biological Activity
Description: Norepinephrine is a peripheral vasoconstrictor by acting on alpha-adrenergic receptors, it can up-regulate the expression of vascular endothelial growth factor, matrix metalloproteinase (MMP)-2, and MMP-9 in nasopharyngeal carcinoma tumor cells. Norepinephrine can stimulates apoptosis in adult rat ventricular myocytes by activation of the β-adrenergic pathway. Noradrenergic system may play a significant role in modulating the development of ischemic neuronal damage.
Targets: VEGFR | Sodium Channel | MMP(e.g.TIMP)
In vitro:
Am J Physiol Renal Physiol. 2015 Mar 1;308(5):F450-8.
Norepinephrine stimulates the epithelial Na+ channel in cortical collecting duct cells via α2-adrenoceptors.[Pubmed: 25520009]
There is good evidence for a causal link between excessive sympathetic drive to the kidney and hypertension. We hypothesized that sympathetic regulation of tubular Na(+) absorption may occur in the aldosterone-sensitive distal nephron, where the fine tuning of renal Na(+) excretion takes place.
METHODS AND RESULTS:
Here, the appropriate regulation of transepithelial Na(+) transport, mediated by the amiloride-sensitive epithelial Na(+) channel (ENaC), is critical for blood pressure control. To explore a possible effect of the sympathetic transmitter Norepinephrine on ENaC-mediated Na(+) transport, we performed short-circuit current (Isc) measurements on confluent mCCDcl1 murine cortical collecting duct cells. Norepinephrine caused a complex Isc response with a sustained increase of amiloride-sensitive Isc by ∼44%. This effect was concentration dependent and mediated via basolateral α2-adrenoceptors. In cells pretreated with aldosterone, the stimulatory effect of Norepinephrine was reduced. Finally, we demonstrated that noradrenergic nerve fibers are present in close proximity to ENaC-expressing cells in murine kidney slices.
CONCLUSIONS:
We conclude that the sustained stimulatory effect of locally elevated Norepinephrine on ENaC-mediated Na(+) absorption may contribute to the hypertensive effect of increased renal sympathetic activity.
Circulation. 1998 Sep 29;98(13):1329-34.
Norepinephrine stimulates apoptosis in adult rat ventricular myocytes by activation of the beta-adrenergic pathway.[Pubmed: 9751683]

METHODS AND RESULTS:
Myocytes were exposed to NE alone (10 micromol/L), NE+propranolol (2 micromol/L), NE+prazosin (0.1 micromol/L), or isoproterenol (ISO, 10 micromol/L) for 24 hours. NE and ISO decreased the number of viable myocytes by approximately 35%. This effect was completely blocked by the beta-adrenergic antagonist propranolol but was not affected by the alpha1-adrenergic antagonist prazosin. NE increased DNA laddering on agarose gel electrophoresis and increased the percentage of cells that were stained by terminal deoxynucleotidyl transferase-mediated nick end-labeling from 5.8+/-1. 0% to 21.0+/-2.3% (P<0.01; n=4). NE likewise increased the percentage of apoptotic cells with hypodiploid DNA content as assessed by flow cytometry from 7.8+/-0.7% to 16.7+/-2.2% (P<0.01; n=6), and this effect was abolished by propranolol but not prazosin. ISO and forskolin (10 micromol/L) mimicked the effect of NE, increasing the percentage of apoptotic cells to 14.7+/-1.9% and 14. 4+/-2.2%, respectively. NE-stimulated apoptosis was abolished by the protein kinase A inhibitor H-89 (20 micromol/L) or the voltage-dependent calcium channel blockers diltiazem and nifedipine.
CONCLUSIONS:
NE, acting via the ss-adrenergic pathway, stimulates apoptosis in adult rat cardiac myocytes in vitro. This effect is mediated by protein kinase A and requires calcium entry via voltage-dependent calcium channels. NE-stimulated apoptosis of cardiac myocytes may contribute to the progression of myocardial failure.
In vivo:
Anesthesiology. 2015 Apr;122(4):736-45.
Randomized double-blinded comparison of norepinephrine and phenylephrine for maintenance of blood pressure during spinal anesthesia for cesarean delivery.[Pubmed: 25635593 ]
During spinal anesthesia for cesarean delivery, phenylephrine can cause reflexive decreases in maternal heart rate and cardiac output. Norepinephrine has weak β-adrenergic receptor agonist activity in addition to potent α-adrenergic receptor activity and therefore may be suitable for maintaining blood pressure with less negative effects on heart rate and cardiac output compared with phenylephrine.
METHODS AND RESULTS:
In a randomized, double-blinded study, 104 healthy patients having cesarean delivery under spinal anesthesia were randomized to have systolic blood pressure maintained with a computer-controlled infusion of Norepinephrine 5 μg/ml or phenylephrine 100 μg/ml. The primary outcome compared was cardiac output. Blood pressure heart rate and neonatal outcome were also compared. Normalized cardiac output 5 min after induction was greater in the Norepinephrine group versus the phenylephrine group (median 102.7% [interquartile range, 94.3 to 116.7%] versus 93.8% [85.0 to 103.1%], P = 0.004, median difference 9.8%, 95% CI of difference between medians 2.8 to 16.1%). From induction until uterine incision, for Norepinephrine versus phenylephrine, systolic blood pressure and stroke volume were similar, heart rate and cardiac output were greater, systemic vascular resistance was lower, and the incidence of bradycardia was smaller. Neonatal outcome was similar between groups.
CONCLUSIONS:
When given by computer-controlled infusion during spinal anesthesia for cesarean delivery, Norepinephrine was effective for maintaining blood pressure and was associated with greater heart rate and cardiac output compared with phenylephrine. Further work would be of interest to confirm the safety and efficacy of Norepinephrine as a vasopressor in obstetric patients.
Norepinephrine Description
Source: From the adrenal gland of Pig.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

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After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 5.9109 mL 29.5543 mL 59.1086 mL 118.2173 mL 147.7716 mL
5 mM 1.1822 mL 5.9109 mL 11.8217 mL 23.6435 mL 29.5543 mL
10 mM 0.5911 mL 2.9554 mL 5.9109 mL 11.8217 mL 14.7772 mL
50 mM 0.1182 mL 0.5911 mL 1.1822 mL 2.3643 mL 2.9554 mL
100 mM 0.0591 mL 0.2955 mL 0.5911 mL 1.1822 mL 1.4777 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
Protocol
Kinase Assay:
Cancer Res. 2006 Nov 1;66(21):10357-64.
Norepinephrine up-regulates the expression of vascular endothelial growth factor, matrix metalloproteinase (MMP)-2, and MMP-9 in nasopharyngeal carcinoma tumor cells.[Pubmed: 17079456]
Recent studies using ovarian cancer cells have shown that the catecholamine hormones Norepinephrine (norepi) and epinephrine (epi) may influence cancer progression by modulating the expression of matrix metalloproteinases (MMP) and vascular endothelial growth factor (VEGF). The purpose of this study is to determine if the stress hormone norepi can influence the expression of MMP-2, MMP-9, and VEGF in nasopharyngeal carcinoma (NPC) tumors by using three NPC tumor cell lines.
METHODS AND RESULTS:
The NPC cell lines HONE-1, HNE-1, and CNE-1 were treated with norepi. The effects of norepi on MMP-2, MMP-9, and VEGF synthesis were measured by ELISA; functional MMP activity was measured by the invasive potential of the cells using a membrane invasion culture system whereas functional activity of VEGF was analyzed using a human umbilical vein endothelial cell tube formation assay. Norepi treatment increased MMP-2, MMP-9, and VEGF levels in culture supernatants of HONE-1 cells, which could be inhibited by the beta-blocker propranolol. Norepi induced the invasiveness of all NPC cell lines in a dose-dependent manner, which was blocked by CMT-3, an MMP inhibitor, and propranolol. Norepi stimulated the release of functional angiogenic VEGF by HONE-1 cells as well. Finally, HONE-1 cells were shown to express beta-adrenergic receptors as did seven of seven NPC biopsies examined.
CONCLUSIONS:
The data suggest that catecholamine hormones produced by the sympathetic-adrenal medullary axis may affect NPC tumor progression, in part, through modulation of key angiogenic cytokines.
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