89 results about "Insulin activity" patented technology

A health-monitoring device assesses the health of a user based on levels of two analytes in a biological fluid. A first analyte that is utilized to assess a user's health is a fat metabolism analyte, such as ketones, free fatty acids and glycerol, which is indicative of fat metabolism. A second analyte that is utilized is a glucose metabolism analyte, such as glucose. The levels of the two analytes may be used to assess insulin sensitivity, to detect both recent hypoglycemia and the cause of high glucose levels, and/or to guide therapeutic intervention. The dual analyte model may calculate a discrepancy between an actual insulin activity level and a theoretical insulin activity level. The dual analyte model of the present invention may be used to identify individuals at risk for metabolic syndrome, insulin resistance and non-insulin dependent diabetes, and allows monitoring of the progression of those disease states, as well as progress made by therapeutic interventions.

Novel pro-insulin having specific amino acid and/or nucleic acid modifications suitable for improved methods of insulin production are provided. Novel and highly efficient processes for preparing the pro-insulin preparations and preparations containing them are also disclosed. The novel pro-insulin preparations may be converted into human insulin useful in therapeutic preparations. Novel peptides of the C-peptide, and N terminus, including RREAEALQVGQVELGGGPGAGSLQPLALEGSLQAR (SEQ ID NO: 32), and MHHHHHHGGR (SEQ ID NO: 2) respectively are provided, as well as the unique nucleic acid molecules encoding them.

Disclosed are fusion proteins that include albumin fused to a polypeptide that has insulin activity. The fusion proteins may include albumin fused to insulin or an insulin analog. In particular, the fusions proteins may include albumin fused to a single chain insulin analog. The fusion proteins may exhibit extended insulin activity in vivo or in vitro relative to insulin that is not fused to albumin. The fusion proteins may be formulated as aerosol compositions.

The invention provides a molecule (Preproinsulin) of human proinsulin with a novel N-terminal expressed peptide sequence or analogs of the human proinsulin, a method for producing human insulin by using the molecule, and processes for building related expression vectors and engineering cells and expressing and purifying human proinsulin. The DNA sequence of the human proinsulin coded by the N-terminal expressed peptide sequence or the analogs of the human proinsulin is first introduced into a prokaryotic expression vector and then transferred into an escherichia coli to express the molecule in form of an inclusion body. The invention has the advantages that: the product has high expression amount and is easy to purify; the preparation method avoids the use of CNBr; and the process for processing the recombinant insulin is simple.

The invention discloses a blood sugar lowering tea which is prepared by mixing six materials. The blood sugar lowering tea is prepared by mixing the following six materials in a scientific ratio: ilex latifolia thunb, white tea, mulberry leaf, corn stigma, paliurus and tartary buckwheat. The blood sugar lowering tea is prepared according to a conventional preparation method of a mixed tea. Through reasonable compatibility and coordination of the six materials in a prescription, the insulin activity is improved and the glucose metabolism is accelerated so as to achieve an aim of lowering blood sugar; and compared with the prior art, the blood sugar lowering tea has the advantages of high integrated concentration, high solubility, convenience for use and no toxic side effect.

The invention discloses a preparation method of recombinant human insulin, which relates to the protein polypeptide type medicine field. The technical problem needed to be solved by the invention aims at providing a preparation method for Escherichia coli to express the recombinant human insulin in order to overcome the technical disadvantages in the prior art of using the poisonous and harmful substance CNBr and having a complex production process. The preparation method for the recombinant human insulin of the invention comprises the steps of: thallus crashing, inclusion body dissolving, proinsulin sulfonating, purifying proinsulin, and proinsulin renaturation, enzyme cutting transmission, etc., and the preparation method is characterized in that during the inclusion body dissolving process, the -SH of proinsulin is transformed into -SSO3<->, and then human insulin is obtained through purifying the sulfonated proinsulin, reduction renaturation and enzyme cutting transmission by positive ion, and then through the negative ion exchange layer purification. The preparation method of the recombinant human insulin of the invention does not use the CNBr and has simple technique with high human insulin yield coefficient and purity.

PEGylated, extended insulins are insulins which, compared with human insulin, has one or more extensions extended from the A1, B1, A21 and/or B30 position(s), said extension(s) consist(s) of amino acid residue(s) and wherein a PEG moiety, via a linker, is attached to one or more of the amino acid residues in the extension(s). PEG is polyethyleneglycol. Such PEGylated, extended insulins have higher bioavailability and a longer time-action profile than regulär insulin and are in particular suited for pulmonary administration and can, conveniently, be used to treat diabetes.

The invention relates to a preparation method of an acylation derivative of human insulin or analog thereof, and concretely relates to the acylation derivative of the human insulin or the analog thereof, prepared from an acylation group existing in an acid form and the human insulin or the analog thereof through a one-step reaction. The method greatly increases the yield of the final product, omits a purification step, and facilitates industrial production of the acylation derivative of the human insulin or analog thereof.

The invention relates to a human insulin/analogue conjugate with a continuous blood sugar reduction function and a high rate of combination with a receptor, and discloses a method for preparing a reconstructed human insulin/analogue conjugate by reconstructing a human insulin precursor by utilizing a methylotrophic yeast expression, performing purification, enzyme digestion, chromatography or synthesis to prepare a reconstructed human insulin and a DesB30 analogue thereof and coupling a side chain amino group of a 29th-bit lysine of a B chain of the reconstructed human insulin precursor and a polyethyleneglycol acetamide bond. The prepared reconstructed human insulin conjugate has the characteristics of high rate of combination with the insulin receptor, remarkable continuous blood sugar reduction effects and long in-vivo half-life period, and is applied to the treatment of I-type and II-type diabetes.

The invention relates to the medical field, and discloses a culture medium for neural stem cell proliferation and capable of inducing neural stem cell to differentiate to dopaminergic neuron and an application and proliferation inducing method. The proliferation culture medium is a culture medium using DMEM/F12 as the base. The culture medium comprises insulin human, progesterone, hydrocortisone, dexamethasone, estradiol, transferrin, EGF, FGF, CTGF, B-NGF, VEGF, a soybean pancreatin inhibitor, L-glutathione, oleic acid, Tween 80, phosphatidic acid, sodium selenite, panax notoginseng saponins, resveratrol, lithium chloride, cholesterol, WNT3a, and glutamine. A novel neural stem cell culture medium is formed by using a plurality of suitable components with low cost and extensive sources, the proliferation speed of the neural stem cells is remarkably improved, and other induced differentiation components are added on the basis of the neural stem cell, so the neural stem cell is induced to be differentiated to the dopaminergic neuron, and the differentiation proportion is remarkably improved.

The present invention is based on the discovery that Humanin and humanin analogues protect pancreatic beta cells in vitro and in vivo from apoptosis. Accordingly, humanin and its analogues are useful for preventing and treating diabetes and promoting beta cell survival in a number of applications.

The invention discloses a human insulin monoclonal antibody crosslinking magnetic particle as well as a preparation method thereof and a human insulin detection kit comprising the human insulin monoclonal antibody crosslinking magnetic particle. Before the human insulin monoclonal antibody is cross-linked with the magnetic particles, the human insulin monoclonal antibody is preprocessed by utilizing a nonionic surface active agent. The human insulin detection kit has the advantages of high detection sensitivity, strong specificity, small medicine interference, good result stability and the like; the human insulin monoclonal antibody crosslinking magnetic particle can be widely suitable for clinical auxiliary diagnosis and screening of diabetes.

The invention discloses a serum-free medium for a monkey embryonic stem cell. The serum-free medium comprises a basic medium and additives, wherein the additives are dissolved in the basic medium; the basic medium comprises a DMEM-F12 medium; and the additive comprises L-glutamine, non-essential amino acid, L-ascorbic acid, sodium selenite, beta-mercaptoethanol, human serum albumin, heparin sodium, human transferring, insulin human, a basic fibroblast growth factor, a transforming growth factor beta 1 and an epidermal growth factor. The serum-free medium is capable of maintaining an undifferentiation state and totipotency of the monkey embryonic stem cell within a relatively long time, and is applicable to culture of the monkey embryonic stem cell in both a free-feeding layer system and a feeding layer system.

The invention relates to the field of bio-medicine. The formula of a polyethylene glycol-modified insulin composite is RNH-X-D, wherein R represents CH3O-(CH2CH2O)nCH2CH2, n is equal to 50-500, X is natural amino acid outside proline of genetic encode or non-natural amino acid of mono-amino mono-carboxyl, and D is B30 amino acid residue-removed natural pork insulin or human insulin. In PEG modification, carboxyl instead that amino is modified, and polyethylene glycol chain is linked to alpha carboxyl on B30 amino acid residue of insulin via amide bond at high yield and high stability. The polyethylene glycol-modified insulin composite has important application prospect in long acting aspect, and substantially is chemically modified insulin. The polyethylene glycol-modified insulin composite has potential long acting function.