342 results about "Lipoxygenase" patented technology

A red blood cell storage composition includes a composition of red blood cells and biochemistry altering reagents, the biochemistry altering reagents being present at a concentration so as to reduce the percent hemolysis of the red blood cells during the freeze-thaw cycle below that of the percent hemolysis of the red blood cells in the absence the biochemistry altering reagents. The red blood cell storage composition preferably includes reagents selected from: modifiers of glycolytic/metabolic components, modifiers of antioxidant potential, effectors of intracellular ionic distribution, modifiers of membrane fluidity, modifiers of cytoskeletal structure, effectors of the cyclooxygenase second messenger pathway, effectors of the lipoxygenase second messenger pathway, effectors of the hexose monophosphate second messenger pathway, effectors of the phosphorylation second messenger pathway, modifiers of specific messenger molecules, and combinations thereof.

The invention relates to compounds, compositions, drug delivery systems, and methods for treating age-related macular degeneration (AMD) and ocular ischemic disease in an individual in need.

According to the invention, there is provided null-LOX-1 barley and plant products produced thereof, such as malt manufactured by using barley kernels defective in synthesis of the fatty acid-converting enzyme lipoxygenase-1. Said enzyme accounts for the principal activity related to conversion of linoleic acid into 9-hydroperoxy octadecadienoic acid, a lipoxygenase pathway metabolite, which—through further enzymatic or spontaneous reactions—may lead to the appearance of trans-2-nonenal. The invention enables brewers to produce a beer devoid of detectable trans-2-nonenal-specific off-flavors, even after prolonged storage of the beverage.

The present invention provides a novel method for simultaneously inhibiting the cyclooxygenase COX-2 and 5-lipoxygenase (5-LO) enzymes. The method for the simultaneous dual inhibition of COX-2 and 5-LO is comprised of administering a composition containing an individual and/or a mixture of multiple flavans isolated from a single plant or multiple plants in the Acacia genus of plants to a host in need thereof. The present also includes novel methods for the prevention and treatment of COX-2 and 5-LO mediated diseases and conditions. The method for preventing and treating COX-2 and 5-LO mediated diseases and conditions is comprised of administering to a host in need thereof an effective amount of a composition comprising an individual and/or a mixture of multiple flavans isolated from a single plant or multiple plants in the Acacia genus of plants and a pharmaceutically acceptable carrier. The present invention includes a method for isolating and purifying a composition of flavans having dual specificity for COX-2 and 5-LO from the Acacia genus of plants.

The present invention provides pyrazolyl inhibitors of 15-LO, pharmaceutical compositions containing such inhibitors and methods for treating diseases related to the 15-LO cascade using such compounds and compositions.

The invention discloses a method for stabilizing the wheat bran specially used for the whole wheat flour, which is mainly characterized in that: the wheat bran is treated by steam and dried by the ultraviolet microwave so that the wheat bran is stabilized. Due to the adoption of the method, the activity of the lipase and the lipoxygenase in the wheat bran can be reduced significantly, and the storage stability of the wheat bran can be improved significantly. In addition, the treated wheat bran has little difference from the non-stabilized wheat bran in colour and organoleptic quality, the content of total phenols in the treated wheat bran is increased slightly, and the antioxidant activity of the treated wheat bran is improved obviously. The method is simple and practical, has an obvious effect and effectively solves a series of problems of the existing method for stabilizing the wheat bran that the equipment has high cost, the operation process is burdensome and complicated, the wheat bran has poor storage stability, the colour of the stabilized wheat bran is dark, the efficacy and the activity are lost, and the stabilized wheat bran is not suitable for producing the whole wheat flour, thereby creating the conditions for producing the high-quality whole wheat flour with long shelf life.

The present invention relates to a composition for the prevention or treatment of physiological and pathological disorders mediated by cyclooxygenase (COX) and/or 5-lipoxygenase (5-LO) comprising Uncaria genus plant, in particular, Uncaria gambir, or its extract, and to a combined composition of said Uncaria genus plant extract and Scutellaria baicalensis extract and/or Camellia sinensis extract. The present composition shows excellent COX and/5-LO inhibition effects, and thus can be used for the prevention or treatment of disease and disorders mediated by various COX pathway and/or 5-LO pathway, including osteoarthritis and rheumatoid arthritis.

A method for treating skin, reducing oxidative damage to a skin cell, reducing lipoxygenase (LO) activity in a skin cell, reducing cyclooxygenase (COX) activity in a skin cell, reducing tumor necrosis factor alpha (TNF-α) in a skin cell, or reduction matrix metalloproteinase enzyme activity in a skin cell comprising contacting skin or a skin cell with an aromatic skin-active ingredient.

The present invention provides a novel composition of matter comprised of a mixture of two specific classes of compounds—Free-B-ring flavonoids and flavans—for use in the prevention and treatment of diseases and conditions mediated by the COX-2 and 5-LO pathways. The present invention further provides a novel method for simultaneously inhibiting the cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LO) enzymes, and reducing cox-2 mRNA production. Finally, the present invention includes a method for weight loss and blood glucose control. The methods of this invention are comprised of administering to a host in need thereof an effective amount of the composition of this invention together with a pharmaceutically acceptable carrier. This invention relates generally to the prevention and treatment of diseases and conditions mediated by the cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LO) pathways, including but not limited to the relief joint discomfort and pain associated with conditions such as osteoarthritis, rheumatoid arthritis, and other injuries that result from overuse.

The present invention provides imidazolyl inhibitors of 15-LO, pharmaceutical compositions containing such inhibitors and methods for treating diseases related to the 15-LO cascade using such compounds and compositions.

The present invention provides a novel composition of matter comprised of a mixture of two specific classes of compounds—Free-B-Ring flavonoids and flavans—for use in the prevention and treatment of diseases and conditions associated with mouth, gums and teeth. This composition of matter simultaneously inhibits cyclooxygenase (COX) and lipoxygenase (LOX) enzymatic activity and reduces cytokine production at the mRNA level in normal, aged and damaged periodontal cells and tissues. This invention further provides a method for the prevention and treatment of diseases and conditions of the mouth, gums and teeth. The method for preventing and treating diseases and conditions of the mouth, teeth and gums is comprised of administering to a host in need thereof a therapeutically effective amount of a composition comprising a mixture of Free-B-Ring flavonoids and flavans synthesized and/or isolated from a single plant or multiple plants, preferably in the Scutellaria, Oroxylum, Acacia or Uncaria genus of plants and pharmaceutically and/or cosmetically acceptable carriers. Finally the present invention provides a method for the prevention and treatment of diseases and conditions of the mouth, teeth or gums, including but not limited to periodontal diseases, such as gingivitis, periodontitis, pulpitis, periodontal conditions caused by the physical implantation of oral dentures, trauma, injuries, bruxism, neoplastic and other degenerative processes; material alba, pellicles, dental plagues, calculus, and stains. Use of the composition described herein also affords the benefit of maintaining optimum saliva production and pH, minimizing bacterial growth, reducing the formation of pellicles and plague, inhibiting tooth decalcification and tooth caries (decay), promoting remineralization, which yields healthy gums, whitening teeth, maintaining healthy oral hygiene and reducing oral malodour (halitosis).

The invention overcomes the deficiencies of the art by providing an agronomically elite soybean plant with non-transgenic mutations of at least two of the glycinin subunits selected from the group consisting of Gy1, Gy2, Gy3, Gy4, and Gy5, such as conferring a Gy3 and Gy4 null phenotype and increased β-conglycinin content in seed. The invention also provides derivatives, and plant parts of these plants and uses thereof. Methods for marker assisted selection of soybean varieties comprising non-transgenic mutations conferring a reduced Gy1, Gy2, Gy3, Gy4, and Gy5 phenotype are also provided as part of the current invention. Methods for producing such plants that are further lipoxygenase and/or Kunitz Trypsin Inhibitor null and the plants produced thereby are also provided. The invention is significant in that soybeans from such plants are preferred dietary additives and provide important health benefits.

The present invention concerns a transgenic soybean plant producing seed having reduced activity of seed lipoxygenases, when compared to a soybean plant expressing wild type activity of native seed lipoxygenases, the transgenic soybean plant having a nucleic acid fragment from at least a portion of at least one soybean seed lipoxygenase gene, wherein the nucleic acid fragment is capable of suppressing expression of native seed lipoxygenases and has been introduced into the soybean plant by transformation. The present invention also concerns a transgenic soybean plant producing seed having reduced activity of seed lipoxygenases and a second native enzyme, when compared to a soybean plant expressing wild type activity of native seed lipoxygenases and the second native enzyme, the transgenic soybean plant having a first nucleic acid fragment from at least a portion of at least one soybean seed lipoxygenase gene, wherein the first nucleic acid fragment is capable of suppressing expression of said native seed lipoxygenases, and a second nucleic acid fragment from at least a portion of at least one second native enzyme gene, wherein the second nucleic acid fragment is capable of suppressing expression of the native second enzyme, wherein the first nucleic acid fragment and the second nucleic acid fragment have been introduced into the soybean plant by transformation, and wherein the second enzyme is selected from the group consisting of an enzyme of the lipid oxidation pathway, fatty acid desaturation pathway, phenylpropanoid pathway, triterpenoid pathway, and combinations thereof. Methods of suppressing wild type activity of native soybean seed lipoxygenases, alone or in combination with suppression of a second native enzyme are also embodied by the present invention.

There is provided a compound of formula (I), wherein R¹, R², R³, X and Y have meanings given in the description, and pharmaceutically-acceptable salts thereof, which compounds are useful in the treatment of diseases in which inhibition of the activity of a lipoxygenase (e.g. 15-lipoxygenase) is desired and/or required, and particularly in the treatment of inflammation.

The invention discloses a baked-fragrance-type jujube essence and a preparation method thereof. The method comprises the following steps of cleaning, enucleating and smashing jujubes as raw materials; placing the treated jujubes in a reaction container; performing enzymolysis by adding cellulases and pectases into the reaction container after adding water into the reaction container; continuously performing the enzymolysis by adding lipases and lipoxygenases into the reaction container so as to obtain an enzymatic hydrolysate; adding a reaction medium into the enzymatic hydrolysate and performing heating distillation; collecting a distillate; when a reaction temperature reaches a final temperature, performing heating reflux instead of the heating distillation; filtrating the distillate through a plate frame so as to obtain a filtrate as a jujube essence I; and performing extraction and reduced pressure distillation on the collected distillate until no solvent exists, thereby obtaining a jujube essence II. The prepared jujube essence has the strong fragrance of the baked jujubes and can be widely applied to the industries of foods, medicines and feeds, so that the unique aroma of products can be achieved. The jujube essence can also be applied to cigarette products so as to enrich the aroma of cigarettes and improve the quality of the cigarettes. Thus, the jujube-featured aroma of the cigarettes is obtained while the baked fragrance of the cigarettes is increased at the same time. As a result, the jujube essence disclosed by the invention has the obvious functions of suppressing foreign flavors and decreasing pungent smells.

The invention discloses a making method of primary-taste soybean milk and a making method of blended soybean milk, and belongs to the technical field of food processing. The making method comprises the following steps of selecting materials, performing peeling, performing refining, performing cooking, performing heat insulating, performing milk and dreg separation, performing enzyme deactivation for the second time, performing raw milk regulation, performing blending, performing sterilization and performing homogenizing. Primary enzyme deactivation treatment is performed in the working procedure of the coarse grinding of refining, after milk boiling and milk-dreg separation, enzyme deactivation is performed for the second time, and besides, in a blending technology, litesse is added, so that the activity of lipoxygenase in soybeans can be effectively reduced, bean astringent taste and bitterness of the obtained soybean milk can be removed, the mouth feel of the soybean milk is notablyimproved, and the running off of nutrient substances is reduced.

The invention provides a novel herbal composition containing the extracts of the leaves and/or stem of <italic>Argemone mexicana </highlight>plant, optionally containing the extracts of the fruits of <italic>Cuminum cyminum</highlight>, which exhibits useful in vitro, in vivo and interesting immunological and pharmacological activities; a process for preparation thereof; and a method of treatment of psoriasis and related immunological and biological disorders by administration of the said novel herbal composition. The useful in vitro, in vivo and interesting immunological and pharmacological activities exhibited by the extracts and fractions of the leaves and/or stem of <italic>Argemone mexicana </highlight>plant include immunosuppression, lymphoproliferation inhibition, cytokine modulation such as IL-2 inhibition, IFNgamma inhibition, IL-10 induction, keratinocyte proliferation inhibition, keratolytic activity, endothelial cell proliferation inhibition, inhibition of cell adhesion molecule expression such as ICAM-1, MEST inhibition, and enzymes inhibition such as p60src Tyrosine kinase, which are known to be involved in anti-psoriatic activity. The novel herbal composition(s) is useful in the treatment of various disorders, such as psoriasis including plaque psoriasis, gutatte psoriasis, pustular psoriasis and psoriasis of the nails; dermatitis and scleroderma; eczema; inflammatory disorders and other autoimmune diseases like psoriatic arthritis, rheumatoid arthritis, Crohn's disease, multiple sclerosis, irritable bowel disease, ankylosing spondilitis, systemic lupus erythremetosus and Sjogren's syndrome; allergies like asthma and chronic obstructive pulmonary disease and is safe, well-tolerated, non-toxic, with minimal and reversible adverse reactions or side effects, and most importantly, with minimal relapse or recurrence of the disease following completion of a treatment regimen. The invention also describes the presence of phosphodiesterase (III, IV and V) inhibition and 5-Lipoxygenase inhibition in the aqueous, ethanolic or aqueous-ethanolic extracts of fruits of <italic>Cuminum cyminum </highlight>plant.

The invention discloses a non-transgenic soybean oil cold pressing preparation process which is characterized by including the steps of raw material selection and polishing and dehulling, pressing moisture adjustment, pressing and residual oil control, crude oil filtering, removal of lipoxygenase by hyperfiltration and removal of beany flavor by bumping in vacuum at the low temperature. Non-transgenic soybeans serving as raw materials eliminates potential hazard possibly caused by transgenic raw materials, and using the physical cold pressing technology enables a product to be free from organic solvent residues, eliminates contamination of aflatoxin on the raw materials and biological factors resulting in deterioration during soybean oil storage, effectively removes the beany flavor and other peculiar smell in soybean oil and is rich in natural antioxidants such as VE (vitamin E) and the like so that extra antioxidants do not need to be added during oil storage.

The present invention provides novel mechanisms that regulate the production of anti-inflammatory and pro-inflammatory mediators generated by 5-lipoxygenase. In this regard, the present invention establishes that phosphorylation of 5-Lipoxygenase by protein kinase A, has a crucial role in determining the end products of 5-Lipoxygenase. With translocation to the nucleus, potent proinflammatory leukotrienes are produced, whereas following phosphorylation by protein kinase A, anti-inflammatory mediators are produced. The present invention also discloses compounds that regulate these pro- and anti-inflammatory mediators.

The invention belongs to the technical field of food industry biology and relates to a bacillus subtilis expression vector of efficient secreting expression recombination lipoxygenase and application thereof. The vector utilizes a bacillus subtilis vector pHB201 as a framework, the pHB201 enzyme cutting site is modified first through an enzyme cutting method to obtain a pHB-hc vector, composition type strong promoter P43, composition type strong promoter PamyE, molecular chaperone PrsA of an Sec path and neutral protease signal peptide SnprB are obtained by cloning in bacillus subtilis 168 genome through a polymerase chain reaction (PCR), and a bacillus subtilis secretion type expression vector pHBSR is obtained in construction. Lipoxygenase gene obtained from anabaenagenome DNA in amplification is inserted into autonomously constructed expression vector pHBSR and then electrically converted into a bacillus subtilis host WB800 to achieve secreting expression of the recombination lipoxygenase, and the largest enzyme activity in fermentation liquid can reach 76U/ml.

A novel benzoxazole derivative of formula (I) or a pharmaceutically acceptable salt thereof is effective for inhibiting 5-lipoxygenase which is useful for preventing or treating leukotriene-related diseases. The prevention also provides a pharmaceutical composition containing same and a method for preventing or treating leukotriene-related diseases.