U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 21 - 23 of 23 results

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)



Benzamil is a derivative of amiloride, a potassium sparing diuretic, and is an inhibitor of Na+/H+ and Na+/Ca++ channels. Amiloride works by directly blocking the epithelial sodium channel (ENaC) thereby inhibiting sodium reabsorption in the distal convoluted tubules and collecting ducts in the kidneys (this mechanism is the same for triamterene). This promotes the loss of sodium and water from the body, but without depleting potassium. Benzamil has being shown to attenuate the development of hypertension in Dahl salt-sensitive rats. Benzamil has been studied as a possible treatment for cystic fibrosis. Benzamil was suggested to be a useful sodium channel blocker for the long-term treatment of the biochemical defect in the lungs of patients with cystic fibrosis.
Status:
US Previously Marketed
Source:
Evans Blue by Parke Davis
(1951)
Source URL:
First approved in 1951
Source:
Evans Blue by Parke Davis
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Evans Blue (EBD) is an azo dye which has a very high affinity for serum albumin. It can be useful in physiology in estimating the proportion of body water contained in blood plasma. Evans Blue Dye is widely used to study blood vessel and cellular membrane permeability as it is non-toxic, it can be administered as an intravital dye and it binds to serum albumin – using this as its transporter molecule. The EBD–albumin conjugate (EBA) can be: (i) identified macroscopically by the striking blue colour within tissue; (ii) observed by red auto-fluorescence in tissue sections examined by fluorescence microscopy; and (iii) assessed and quantified by spectrophotometry for serum samples, or homogenised tissue. has recently been utilised in mdx mice to identify permeable skeletal myofibres that have become damaged as a result of muscular dystrophy. EBD has the potential to be a useful vital stain of myofibre permeability in other models of skeletal muscle injury and membrane-associated fragility. Evans Blue is a potent inhibitor of L-glutamate uptake into synaptic vesicles. It also inhibits AMPA and kainate receptor-mediated currents (IC50 values are 220 and 150 nM respectively). P2X-selective purinoceptor antagonist.
Camostat mesilate (FOY-305) is a synthetic f low-molecular weight protease inhibitor. It is able to inhibit trypsin, prostasin, matriptase and plasma kallikrein. In addition camostat attenuates airway epithelial sodium channel function and enhances mucociliary clearance. Camostat mesilate tablets (FOIPAN®) are approved in Japan and used for the treatment of remission of acute symptoms of chronic pancreatitis and postoperative reflux esophagitis.