Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/16—Amides, e.g. hydroxamic acids
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
  • A61K31/19—Carboxylic acids, e.g. valproic acid
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P11/00—Drugs for disorders of the respiratory system
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P11/00—Drugs for disorders of the respiratory system
  • A61P11/08—Bronchodilators
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P11/00—Drugs for disorders of the respiratory system
  • A61P11/16—Central respiratory analeptics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P3/00—Drugs for disorders of the metabolism
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
  • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
  • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

• This invention pertains to therapeutic methods of preventing and treating the damage and resulting disease state in mammals caused by mammalian cells involved in the inflammatory response resulting in undesired respiratory bursting, production of enzymes and cellular signaling agents in mammalian cells.
• This invention also pertains to compositions used in the therapeutic methods.
• Reactive oxygen species are generated by cells in response to inter alia aerobic metabolism, catabolism of drugs, toxins and other xenobiotics.
• ultraviolet and x-ray radiation and the respiratory burst of phagocytic cells (such as white blood cells) to kill invading bacteria and in response to foreign bodies.
• Hydrogen peroxide for example, is produced during respiration of most living organisms especially by stressed and living cells.
• lipid peroxidation which involves the oxidative degradation of unsaturated lipids.
• Lipid peroxidation is highly detrimental to membrane structure and function and can cause numerous cytopathological effects.
• Cells defend against lipid peroxidation by producing radical scavengers such as superoxide dismutase, catalase, and peroxidase. Injured cells have a decreased ability to produce radical scavengers.
• Excess hydrogen peroxide can react with pyrimidines to open the 5, 6- double bond. This reaction inhibits the ability of pyrimidines to hydrogen bond to complementary bases, Hallaender et al. ( 1971 ).
• Such oxidative biochemical injury can result in the loss of cellular membrane integrity, reduced enzyme activity, changes in transport kinetics, changes in membrane lipid content, and leakage of potassium ions, amino acids, and other cellular material.
• the production of reactive oxygen intermediates has been suggested to cause many skin, tissue, and organ disorders such as atherosclerosis, arthritis, cytotoxicity, skin inflammation, photoaging, wrinkling, actinic keratosis, tumor formation, cancer, hypertension, Parkinson's disease, lung disease, and heart disease.
• the role of active oxygen radicals in promoting tumors has been proposed based on the findings that (a) tumor promoters increase the level of oxygen radicals, (b) many free radical generating systems promote tumors, and (c) certain antioxidants inhibit the biochemical effects of tumor promoters.
• reactive oxygen intermediates can be generated in cellular culture media by autooxidation and photooxidation of media components.
• transplant organs can suffer oxidative injuries which result in thee loss of cellular membrane integrity and shorten the usable life ofthe organ.
• United States Patent No. 5,210,098 issued to Nath discloses a method to arrest or prevent acute kidney failure by administration of a non-toxic pyruvate salt to a patient in need of such treatment.
• the Nath invention provides a therapeutic method comprising administration of an amount of pyruvate salt to a patient experiencing, or in danger of, acute renal failure.
• the pyruvate salt preferably sodium pyruvate
• the pyruvate salt is preferably dispersed or dissolved in a pharmaceutically acceptable liquid carrier and administered parenterally in an amount effective to arrest or prevent said acute renal failure, thus permitting restoration of normal kidney function.
• the pyruvate may be infused directed into the kidney or into the proximal renal arterial circulation.
• the method is effective to prevent or counteract acute kidney failure due to a wide variety of causes, including, but not limited to, traumatic injury, including burn injury and obstruction; reperfusion following ischemia, inflammatory glomerulonephritis, and sepis, e.g. due to gram negative bacterial infection.
• the therapeutic composition comprises (a) pyruvate selected from the group consisting of pyruvic acid, pharmaceutically acceptable salts of pyruvic acid, and mixtures thereof, (b) an antioxidant, and (c) a mixture of saturated and unsaturated fatty acids wherein the fatty acids are those fatty acids required for the resuscitation of injured mammalian cells.
• United States Patent No. 5,256,697 issued to Miller et al.. discloses a method for orally administering a therapeutically effective amount of pyruvate precursor to a mammal to improve insulin resistance, lower lasting insulin levels and reduce fat gain.
• United States patent nos. 3,920,835, 3,984,556, and 3,988,470 all issued to Van Scott et al. disclose methods for treating acne, dandruff, and palmar keratosis, respectively, which consist of applying to the affected area a topical composition comprising from about 1% to about 20% ofa lower aliphatic compound containing from two to six carbon atoms selected from the group consisting of alpha-hydroxyacids, alpha-ketoacids and esters thereof, and 3-hydroxybutryic acid in a pharmaceutically acceptable carrier.
• the aliphatic compounds include pyruvic acid and lactic acid.
• United States patents nos. 4,105,783 and 4,197,316, both issued to Yu et al.. disclose a method and composition, respectively, for treating dry skin which consists of applying to the affected area a topical composition comprising from about 1% to about 20% ofa compound selected from the group consisting of amides and ammonium salts of alpha-hydroxyacids, beta-hydroxyacids, and alpha-ketoacids in a pharmaceutically acceptable carrier.
• the compounds include the amides and ammonium salts of pyruvic acid and lactic acid.
• United States patent no.4,234,599 issued to Van Scott et al. discloses a method for treating actinic and nonactinic skin keratoses which consists of applying to the affected area a topical composition comprising an effective amount of a compound selected from the group consisting of alpha-hydroxyacids, beta- hydroxyacids, and alpha-ketoacids in a pharmaceutically acceptable carrier.
• the acidic compounds include pyruvic acid and lactic acid.
• United States patent no. 4,294,852 issued to Wildnauer et al.. discloses a composition for treating skin which comprises the alpha-hydroxyacids, beta-hydroxyacids, and alpha-ketoacids disclosed above by Van Scott et al. in combination with C3-C8 aliphatic alcohols.
• United States patent no. 4,663,166 issued to Veech, discloses an electrolyte solution which comprises a mixture of L-lactate and pyruvate in a ratio from 20:1 to 1 :1, respectively, or a mixture of D-beta-hydroxybutyrate and acetoacetate, in a ratio from 6: 1 to 0.5:1 , respectively.
• Sodium pyruvate has been reported to reduce the number of erosions, ulcers, and hemorrhages on the gastric mucosa in guinea pigs and rats caused by acetylsalicylic acid.
• the analgesic and antipyretic properties of acetylsalicylic acid were not impaired by sodium pyruvate, Puschmann, Arzneistoffforschung. 33. pp.
• Pyruvate has been reported to produce a relative stabilization of left ventricular pressure and work parameter and to reduce the size of infarctions. Pyruvate improves resumption of spontaneous beating ofthe heart and restoration of normal rates and pressure development, Bunger et al., J. Mol. Cell. Cardiol.. 18. pp. 423-438 (1986), Mochizuki et al.. J. Phvsiol. (Paris). 76, pp. 805-812 (1980), Regitz et al.. Cardiovasc. Res.. 15 pp. 652-658 (1981), Giannelli et al.. Ann.Thorac. Sure.. 21 pp. 386-396. (1976).
• Sodium pyruvate has been reported to act as an antagonist to cyanide intoxication (presumably through the formation of cyanohydrin) and to protect against the lethal effects of sodium sulfide and to retard the onset and development of functional, mo ⁇ hological, and biochemical measures of acrylamide neuropathy of axons, Schwartz et aL, Toxicol. Appl. Pharmacol., 50 pp. 437-442 ( 1979), Sabri et al. Brain Res.. 483. pp. 1-11 (1989).
• a chemotherapeutic cure of advanced L1210 leukemia has been reported using sodium pyruvate to restore abnormally deformed red blood cells to normal. The deformed red blood cells prevented adequate drug delivery to tumor cells. Cohen. Cancer Chemother. Pharmacol.. 5. pp. 175-179 (1981).
• United States patents nos. 4,158,057, 4,351,835, 4,415,576, and 4,645,764, all issued to Stanko disclose methods for preventing the accumulation of fat in the liver ofa mammal due to the ingestion of alcohol, for controlling weight in a mammal, for inhibiting body fat while increasing protein concentration in a mammal, and for controlling the deposition of body fat in a living being, respectively.
• the methods comprise administering to the mammal a therapeutic mixture of pyruvate and dihydroxyacetone, and optionally riboflavin.
• United States patent no.4,548,937 discloses a method for controlling the weight gain of a mammal which comprises administering to the mammal a therapeutically effective amount of pyruvate, and optionally riboflavin.
• United States patent no 4,812,479, issued to Stanko discloses a method for controlling the weight gain of a mammal which comprises administering to the mammal a therapeutically effective amount of dihydroxyacetone, and optionally riboflavin and pyruvate.
• Rats fed a calcium-oxalate lithogenic diet including sodium pyruvate were reported to develop fewer urinary calculi (stones) than control rats not given sodium pyruvate, Ogawa et al.. Hinvokika Kivo. 32, pp. 1341-1347 (1986).
• United States patent no. 4,521,375 discloses a method for sterilizing surfaces which come into contact with living tissue. The method comprises sterilizing the surface with aqueous hydrogen peroxide and then neutralizing the surface with pyruvic acid.
• United States patent no. 4,416,982 issued to Tauda et al.. discloses a method for decomposing hydrogen peroxide by reacting the hydrogen peroxide with a phenol or aniline derivative in the presence of peroxidase.
• United States patent no, 4,696,917, issued to Lindstrom et al. discloses an irrigation solution which comprises Eagle's Minimum Essential Medium with Earle's salts, chondroitin sulfate, a buffer solution, 2-mercaptoethanol, and a pyruvate.
• the irrigation solution may optionally contain ascorbic acid and alpha-tocopherol.
• United States patent no. 4,725,586, issued to Lindstrom et al.. discloses an irrigation solution which comprises a balanced salt solution, chondroitin sulfate, a buffer solution, 2 mercaptoethanol, sodium bicarbonate or dextrose, a pyruvate, a sodium phosphate buffer system, and cystine.
• the irrigation solution may optionally contain ascorbic acid and gamma-tocopherol.
• United States patent no. 4,847,069, issued to Bissett et al.. discloses a photoprotective composition comprising (a) a sorbohydroxamic acid, (b) an anti ⁇ inflammatory agent selected from steroidal anti-inflammatory agents and a natural anti-inflammatory agent, and (c) a topical carrier. Fatty acids may be present as an emollient.
• United States patent no. 4,847,071, issued to Bissett et al.. discloses a photoprotective composition comprising (a) a tocopherol or tocopherol ester radical scavenger, (b) an anti-inflammatory agent selected from steroidal anti-inflammatory agents and a natural anti-inflammatory agent, and (c) a topical carrier.
• United States patent no. 4,847,072, issued to Bissett et al.. discloses a topical composition comprising not more than 25% tocopherol sorbate in a topical carrier.
• compositions and methods are reported to inhibit the production of reactive oxygen intermediates, none ofthe compositions and methods treats the damage and resulting disease state in mammals caused by undesired respiratory bursting, production of enzymes and cellular signaling agents in mammalian cells.
• the present invention pertains to a method for treating the disease state in mammals caused by mammalian cells involved in the inflammatory response and compositions useful in the method.
• the method for treating the disease state in mammals caused by mammalian cells involved in the inflammatory response comprises: contacting the mammalian cells participating in the inflammatory response with an inflammatory mediator; wherein the inflammatory mediator is present in an amount capable of reducing the undesired inflammatory response and is an antioxidant.
• the inflammatory mediator in addition to reducing the undesired inflammatory response and being an antioxidant, may further provide a cellular energy source and be a building block in the cellular synthesis of other cellular components.
• the inflammatory mediator may also increase cellular metabolic rate.
• the present invention also pertains to compositions for reducing and treating the disease state in mammals caused by undesired inflammatory response comprising: An inflammatory response mediator; and a carrier composition; wherein the inflammatory response mediator is an antioxidant and capable of reducing undesired inflammatory response in mammalian cells.
• the inflammatory response mediators may be used individually, in combination and further in combination with a therapeutic agent such as an antibacterial, antiviral, antifungal, protein, enzyme, antihistamine, hormone, nonsteroidal anti-inflammatory, cytokine, and steroid.
• a therapeutic agent such as an antibacterial, antiviral, antifungal, protein, enzyme, antihistamine, hormone, nonsteroidal anti-inflammatory, cytokine, and steroid.
• a preferred method of administering the inflammatory mediator is by inhalation.
• compositions and a method for treating the disease state in mammals caused by mammalian cells involved in the inflammatory response have been discovered.
• the mammalian cells primarily responsible for the inflammatory response are white blood cells or leucocytes.
• mammalian cells are contacted with an inflammatory mediator.
• the inflammatory mediator is present in an amount capable of reducing the undesired inflammatory response and is an antioxidant.
• the inflammatory response is the response of defensive mammalian cells primarily white blood cells or leucocytes. These cells normally respond to an injury or invasion ofthe mammal by releasing a number of active compounds at the injury or invasion site. Among the compounds released are enzymes such as proteases and active oxygen species such as hydrogen peroxide.
• a purpose ofthe respiratory burst is to provide a battery of oxidizing agents in response to a stimulant that can be used by the leucocytes for the destruction of foreign cells, viruses, particulates and some toxins which have been ingested by or are in the vicinity of the leucocyte.
• the term "respiratory burst" refers to a coordinated series of metabolic events that take place when leucocytes are exposed to appropriate stimuli. This group of events underlies all oxygen dependent killings by leucocytes.
• the first of these events is the sharp increase in oxygen uptake that occurs upon stimulation ofthe leucocytes. While oxygen consumption by resting leucocytes varies widely by cell type, all respond to appropriate stimuli with an increase in oxygen uptake.
• Stimulation of the leucocyte also causes an increase in glucose oxidation via the hexose monophosphate shunt.
• the hexose monophosphate shunt is a metabolic pathway in which glucose is oxidized to carbon dioxide and a five carbon sugar, with NADP+ serving as electron acceptor.
• Activation ofthe hexose monophosphate shunt therefore means that the oxidation of NADPH to NADP+ increases during the respiratory burst.
• the respiratory burst produces superoxide and hydrogen peroxide.
• Oxygen taken up by the respiratory burst is converted to superoxide. Hydrogen peroxide appears to arise during the respiratory burst mainly from the dismutation of superoxide anion.
• Invest. 60: 1266 that 80 percent ofthe superoxide is converted to hydrogen peroxide, and this dismutation reaction is the only important source of the hydrogen peroxide generated during the burst. Hydrogen peroxide and superoxide are believed to be responsible for the killing by leucocytes. Many agents, both soluble and particulate, are able to activate the respiratory burst. Particulate activating agents include bacteria, viruses and fungi for internal body organs or areas and bacteria, viruses, fungi, fibers, smoke, dust, ash, pollen, smog and the like for body cavities and organs such as the lungs, skin, digestive and excretory tracks open to the environment. Soluble agents can be toxins, medicinal compounds and soluble excretions of bacteria, fungi and infected mammalian cells and the like.
• leucocytes as used herein includes lymphocytes, phagocytes, macrophages and auxiliary cells.
• the stimulant and/or the mechanism of stimulation turns off allowing the leucocyte to return to its normal resting state.
• the inflammatory action of the leucocytes continues unchecked causing a number of disease states.
• These disease states occur as the compounds produced by the leucocytes attack, injure and kill tissue cells and other leucocytes. It is this failure to turn off the respiratory burst and the resulting injury to surrounding tissue cells, blood cells, other leucocytes and injured cells that produces the disease states treated by the present invention.
• Undesired inflammatory response occurs when the inflammatory response causes injury to host cells and this injury poses an independent threat to the host.
• the therapeutic compositions containing an inflammatory mediator are administered locally to the site of inflammation.
• the therapeutic compositions are administered systemically.
• the therapeutic compositions are administered systemically and locally concomitantly.
• the therapeutic compositions are administered by inhalation.
• the therapeutic compositions may be first nebulized by any suitable means.
• the therapeutic compositions may be in liquid or solid form with liquid droplets or particle size being small enough to facilitate access to lung tissue by inhalation.
• a sterile solution of therapeutic agent is nebulized and inhaled by the patient.
• a therapeutically effective amount of inflammatory medication is inhaled. This may be accomplished in a single inhalation or by repeated inhalations over a period of time typically 1 to 30 minutes.
• inhalation will be complete in less than 20 minutes. Most preferably inhalation will be complete in less than 15 minutes.
• injured cell means a cell which has some or all of the following: (a) injured membranes so that transport through the membranes is diminished and may result in one or more of the following, an increase in toxins and normal cellular wastes inside the cell and/or a decrease in nutrients and other components necessary for cellular repair inside the cell, (b) an increase in concentration of oxygen radicals inside the cell because ofthe decreased ability of the cell to produce antioxidants and enzymes, and (c) damaged DNA, RNA and ribosomes which must be repaired or replaced before normal cellular functions can be resumed.
• the inflammatory mediator when brought into contact with a mammalian cell provides a cellular energy source and a building block in the cellular synthesis of other cellular components.
• the inflammatory response being reduced is at least one of the following: oxygen radical production, peroxide production, cytokine and/or protease production, prostiglandin production, erythema, histamine and interlukin production and like responses known in the art as inflammatory responses.
• the preferred inflammatory mediator is at least one compound selected from the group consisting of a pyruvate precursor, pyruvate, a lactate precursor and lactate.
• a precursor is a substance from which another substance is formed and in this text also includes salts.
• the pyruvate is selected from the group consisting of pyruvic acid, lithium pyruvate, sodium pyruvate, potassium pyruvate, magnesium pyruvate, calcium pyruvate, zinc pyruvate, manganese pyruvate, and the like and mixtures thereof.
• Sodium pyruvate is most preferred.
• Another preferred inflammatory mediator is selected from the group consisting of pyruvy 1- gly cene, pyruvyl-alanine, pyruvyl-leucine, pyruvyl-valine, pyruvyl-isoleucine, pyruvyl-phenylalanine, pyruvamide, dihydroxyacetone, and propylene glycol.
• Preferred salts of the inflammation mediator are salts that do not produce an adverse effect on the mammalian cell when applied as a salt of the inflammation mediator.
• Typical salts would be the lithium, sodium, potassium, aluminum, magnesium, calcium, zinc, manganese, ammonium and the like and mixtures thereof.
• the lactate precursor is preferably selected from the group consisting of lactyl-glycene, lactyl-alanine, lactyl-leucine, lactyl-valine, lactyl-isoleucine, lactyl-phenylalanine, lactamide and the various salts of lactate.
• compositions for reducing and treating the disease state in mammals caused by undesired inflammatory response comprise: an inflammatory response mediator; and a carrier composition.
• the carrier composition is selected from the group consisting of tablets, capsules, liquids, isotonic liquids, isotonic media, enteric tablets and capsules, parenterals, topicals, creams, gels, ointments, chewing gums, confections and the like.
• the inflammatory mediator is administered in a therapeutically effective amount to reduce the undesired inflammatory response. Preferably from 0.001 to 10 grams per dose. More preferably 0.001 to 1 gram per dose and most preferably 0.001 to 0.25 grams per dose. It is understood that the method of administration and the condition being treated will greatly affect the dose required to achieve the therapeutic effect.
• Typical airway diseases treatable by the present compositions and method include but are not limited to bronchial asthma, acute bronchitis, emphysema, chronic obstructive emphysema, centrilobular emphysema, panacinar emphysema, chronic obstructive bronchitis, reactive airway disease, cystic fibrosis, bronchiectasis, acquired bronchiectasis, kartaagener's syndrome, atelectasis, acute atelectasis, chronic atelectasis, pneumonia, essential thrombocytopenia, legionnaires disease, psittacosis, fibrogenic dust disease, diseases due to organic dust, diseases due to irritant gases and chemicals, hypersensitivity diseases ofthe lung, idiopathic infiltrative diseases ofthe lungs and the like. Particular disease states to be treated are emphysema and asthma.
• the inflammatory mediator of the present invention may be administered prior to, after and/or with other therapeutic agents.
• Typical therapeutic agents are antibacterials, antivirals, antifungals, antihistamines, proteins, enzymes, hormones, nonsteroidal anti-inflammatories, cytokines, steroids, and the like.
• Treatment was conducted as follows: Five (5) milliliters of five (5) millimolar sodium pyruvate solution is filter sterilized through a 0.2 micron filter. The sterile pyruvate solution is placed into a "Pulmo Aid" nebulizer manufactured by DeVilbiss Co., Somerset, Pennsylvania 15501-0635.
• the sterile pyruvate solution is nebulized by the Pulmo Aid device fitted with a disposable nebulizer and inhaled by the patient.
• the patient inhales normally from the Pulmo Aid nebulizer until all of the solution has been nebulized and inhaled. This inhalation step typically takes about ten (10) to twenty (20) minutes.
• the patient is treated with this inhalation therapy periodically. Initially, treatments are about four (4) times a day at about six (6) hour intervals. Treatments were reduced to three (3) times a day at about eight (8) hour intervals after 30 days of therapy. Treatments were further reduced to once a day 60 DAYS AFTER ONSET OF TREATMENT. After ninety (90) days treatments are three to five times a week.

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• 1996
  • 1996-09-06 EP EP96929932A patent/EP0804181A4/de not_active Withdrawn
  • 1996-09-06 AU AU69159/96A patent/AU719332B2/en not_active Ceased
  • 1996-09-06 NZ NZ306832A patent/NZ306832A/en not_active IP Right Cessation
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