Liquid chalcogenide compositions and methods of manufacturing and using the same
View Patent ↗The present invention provides novel stable, liquid compositions comprising chalcogenides or salts thereof. These compositions may be used for a variety of purposes, including the treatment and prevention of ischemic or hypoxic injury, as well as in the preservation of biological matter.
1. A method for treating disease, injury or a disorder in a biological material comprising contacting the biological material with an effective amount of a sterile, stable aqueous pharmaceutical composition comprising:
a solution of deoxygenated water and sodium sulfide;
wherein the sodium sulfide produces Na2S, H2S and HS—;
wherein the concentration of H2S is in the range of 1.0 mg/mL to 15.0 mg/mL;
wherein the solution is adjusted to a pH in the range of 7.5 to 8.5 by adding HCl to the solution;
wherein the solution has an osmolarity in the range of 250-330 mOsmol/L;
wherein the solution further comprises sulfide oxidation products selected from the group consisting of polysulfide, sulfite, sulfate and thiosulfate;
wherein the oxidation products comprise sulfate in the range of 0%-1.0%, sulfite in the range of 0%-1.0%, polysulfide in the range of 0%-1% or thiosulfate in the range of 0%-1.0%;
and wherein the solution is isotonic or near isotonic; and wherein the disease, injury or disorder can be treated with liquid or gaseous chalcogenide compositions; is a surgery; is risk for reperfusion injury; is an ischemic or hypoxic condition arising from stroke, cardiac arrest, myocardial infarction, or coronary artery bypass graft (CABG) surgery; is hemorrhagic shock, or; is hepatic injury.
2. The method of claim 1 , wherein the biological material is contacted with the composition before or after the injury or before or after onset or progression of the disease.
3. The method of claim 1 , wherein said contacting is conducted intravenously, intradermally, intraarterially, intraperitoneally, intralesionally, intracranially, intraarticularly, intraprostaticaly, intrapleurally, intratracheally, intranasally, intravitreally, intravaginally, intrarectally, topically, intratumorally, intramuscularly, intraperitoneally, intraocularly, subcutaneously, subconjunctivally, intravesicularly, mucosally, intrapericardially, intraumbilically, orally, locally, by injection, by infusion, by continuous infusion, by absorption, by adsorption, by immersion, by localized perfusion, via a catheter, or via a lavage.
4. The method of claim 1 , wherein the biological material is an organ donor and the organ donor is contacted with the composition prior to removal of donor organs for transport and transplantation into a recipient in need of an organ transplant.
5. The method of claim 1 , wherein said contacting is parenteral administration.