162 results about "Sphingolipid" patented technology

Methods and compositions are disclosed that are useful for the prevention and/or treatment of cardiovascular and cardiac diseases and disorders, or damage resulting from surgical or medical procedures that may cause ischemic or ischemic/reperfusion damage in humans; and cardiovascular trauma. The beneficial effects of the compositions and methods are achieved through the use of pharmaceutical compositions that include agents that interfere with the production and/or biological activities of sphingolipids and their metabolites, particularly sphingosine (SPH) and sphingosine-1-phosphate (S-1-P). Also disclosed are methods for identifying and isolating therapeutic agents.

The invention relates to a soft hydrogel contact lens, especially a silicone hydrogel contact lens, which has a capability of delivering a hydrophobic comfort agent into the eye of a wearer. The hydrophobic comfort agent includes without limitation a monoglyceride, a diglyceride, a triglyceride, a glycolipid, a glyceroglycolipid, a sphingolipid, a sphingo-glycolipid, a phospholipid, a fatty acid, a fatty alcohol, a hydrocarbon having a C₁₂-C₂₈ chain in length, a mineral oil, a silicone oil, or a mixture thereof. It can be released from the soft hydrogel contact lens into the eye of a wearer when being worn so as to strengthen and stabilize the tear film lipid layer and alleviate the dryness of the eye.

Provided herein are sphingolipid compounds that are useful for activating natural killer T cells. Also provided are methods for treating or preventing a disease or disorder that is treatable by activating the immune system by stimulating natural killer T cells. The compounds are therefore useful for treating or reducing the likelihood of occurrence of an immune diseases and disorders, such as autoimmune diseases or disorders. The compounds may also be used for treating or reducing the likelihood of occurrence of a microbial infection or for treating or reducing the likelihood of occurrence of a cancer in a subject by administering the sphingolipid compounds described herein.

The present invention comprises a method for delivering pharmaceutical and/or imaging agents within and/or through the dermal, mucosal and other cellular membranes, and across the blood-brain barrier, utilizing a fusogenic protein. The fusogenic protein is associated with a phospholipid membrane, such as a liposome. The liposome may include dioleoylphosphatidylserine, a negatively charged long-chain lipid. Alternatively, the liposome is comprised of a mixture of negatively charged long-chain lipids, neutral long-chain lipids, and neutral short-chain lipids. Preferred fusogenic proteins include saposin C and other proteins, polypeptides and peptide analogs derived from saposin C. The active agent contained within the liposome may comprise biomolecules and/or organic molecules. This technology can be used for both cosmetic and medicinal applications in which the objective is delivery of the active agent within and/or beneath biological membranes or across the blood-brain barrier and neuronal membranes.

The invention discloses a medical skin care agent and a preparation method thereof, wherein, the medical skin care agent provided in the invention mainly comprises chitosan or derivatives thereof, a gelling agent and preservative. Specifically, the gelling agent is advantaged in that: ceramide, a mixture of sphingolipids and phospholipids, ceramide analogue and the like are used to form a layered-structure gel phase structure which is similar to skin lipoid structure and capable of enhancing the lipoid structure of the skin itself, thereby realizing the function of repairing skin barrier; due to the adding of the chitosan or the derivatives thereof in the medical skin care agent, the medical skin care agent is provided with broad-spectrum anti-microbial property and can effectively repair common skin inflammation of redness, swelling, peeling, itching and the like for dry, damaged and sensitive skin, thereby realizing anti-microbial function and anti-inflammation function in medical skin care.

The present invention relates to a method for improving the composition of the intestinal flora, to a food comprising a sphingolipid for use in such a method, to methods for the preparation of such a food and to the use of sphingolipids for the preparation of a medicine for improving the composition of the intestinal flora. More in particular, the present invention relates to a method and food in which a sphingolipid chosen from the group consisting of phytosphingosine, sphingosine, lysosphingomyelin and sphinganine, or a precursor, a derivative, or suitable salt thereof is used.

The present invention is in the field of prevention and treatment of atherosclerosis and atherosclerosis-related clinical conditions. In particular, the present invention relates to the use of sphingolipids, more preferably phytosphingosine, sphingosine, sphinganine, ceramide, cerebroside lyso-sphingomyelin and/or sphingomyelin for prevention and treatment of inflammatory processes associated with atherosclerosis, psoriasis, colitis or auto-immune diseases in a subject.

The present invention is directed to methods for treating rhinitis or sinusitis in a subject. In one embodiment, the method comprises the steps of: identifying a subject in need thereof, and administering intranasally to the subject a formulation comprising an only active ingredient of an effective amount of rhamnolipid. In another embodiment, the method comprises the steps of: identifying a subject in need thereof, and administering intranasally to the subject a first active ingredient of an effective amount of a rhamnolipid and a second active ingredient of an effective amount of a corticosteroid, an antihistamine, a leukotriene antagonist, cromylin, an antibiotic, a sphingolipid, or a decongestant.

The present invention relates to cationic ceramides, their dihydro-analogs and aromatic analogs and their derivatives, comprising a pyridinium group. Also provided are methods for making cationic ceramides comprising a pyridinium group, and their use for treating or preventing diseases associated with cell overproliferation and sphingolipid signal transduction, such as cancer, inflammation, and stenosis. The compounds are also useful as mitochondritropic agents that are localized to mitochondria carrying with them chemical cargoes, such as drugs, or signaling molecules, such as fluorophores for probing organelle structure and functions.

A nutritional composition comprising phospholipids, sphingolipids and cholesterol for the prevention of obesity and/or diabetes is provided.

The invention discloses a large-scale blood plasma sphingolipid profile analysis method based on liquid chromatography-mass spectrometry combination, which is characterized in that sphingolipid in blood plasma is extracted by double-phase extraction with methyl tertiary butyl ether/methanol/water (MTBE/MeOH/H2O) combined with mild basic hydrolysis. Then rapid semi-quantitative analysis is realized within 15 min by combination of ultra-high performance liquid chromatography-electro-spray ionization-mass spectrometry. In the invention, the MTBE/MeOH/H2O extraction system is simple, rapid, and easy to operate, has less protein interference in the extract, and has good repeatability; interference of high-abundance phospholipid and glyceride in the lipid group is eliminated by hydrolysis; ion inhibition is reduced; therefore, the purpose of detecting low-abundance sphingolipid with high sensitivity is achieved. With the high resolution separation capability of subsequent ultra-high performance liquid chromatography (UHPLC) and the specificity of MRM, effective distinguishing of isomers is realized, and the introduction of complex isotope correction during quantification is avoided, which makes the method more rapid and accurate.

The present invention comprises a method for delivering pharmaceutical and/or imaging agents within and/or through the dermal, mucosal and other cellular membranes, and across the blood-brain barrier, utilizing a fusogenic protein. The fusogenic protein is associated with a phospholipid membrane, such as a liposome. The liposome may include dioleoylphosphatidylserine, a negatively charged long-chain lipid. Alternatively, the liposome is comprised of a mixture of negatively charged long-chain lipids, neutral long-chain lipids, and neutral short-chain lipids. Preferred fusogenic proteins include saposin C and other proteins, polypeptides and peptide analogs derived from saposin C. The active agent contained within the liposome may comprise biomolecules and/or organic molecules. This technology can be used for both cosmetic and medicinal applications in which the objective is delivery of the active agent within and/or beneath biological membranes or across the blood-brain barrier and neuronal membranes.