160 results about "Testosterone" patented technology

The present invention provides a detection method for free testosterone and total testosterone concentration, including antibody-coupled magnetic micro-enrichment of free testosterone and total testosterone in serum samples using a kit, automated pre-treatment and LC-MS / MS detection, the kit includes a testosterone separation and purification reagent strip, a testosterone calibration curve and a testosterone quality control product, and a testosterone separation and purification reagent strip includes testosterone antibody-coupled magnetic particles, testosterone stable isotope internal standard, eluent and eluent that can separate and purify testosterone. The present invention combines the advantages of immunoassay and mass spectrometry, and the required reagents for separating and purifying testosterone are prepared into closed reagent strips, effectively avoiding experimental errors caused by poor contamination of reagents. The sample is added to the reagent strip, and the pre-treatment is automated, and the operation process only requires 12min, completes the extraction of testosterone in the sample, and the treated sample is taken out for detection, without the need for various reagents, consumables, instruments and equipment commonly used in conventional detection methods and their placement space, simple and efficient, easy to clinical detection and application.

The invention discloses a method for generating haploid sperm-like cells through in-vitro differentiation of pluripotent stem cells and application of the haploid sperm-like cells. Human pluripotent stem cells are firstly differentiated into ectoderm-like cells, then the ectoderm-like cells are spontaneously gathered and converted into primordial germ cell-like cells under the induction of ectoderm induction factors, and then the primordial germ cell-like cells and testicular sertoli cells are subjected to mixed culture to form recombinant testicular tissues; the recombinant testis tissue enters meiosis under the induction of nutrition limitation and retinoic acid, then meiosis is completed under the stimulation of meiosis second-stage induction factors such as testosterone, follicle-stimulating hormone and pituitary extract, and interaction between primordial germ cell-like cells and testis supporting cells is enhanced by using small molecules SB431542, so that the meiosis of the testis is enhanced. And finally inducing to generate haploid sperm-like cells. According to the invention, a new tool can be provided for researching a molecular mechanism of male reproduction, and an important thought can be provided for research and transformation of asthenospermia, oligospermia, drug screening and the like.

The invention discloses a free testosterone detection kit based on SERS (Surface Enhanced Raman Scattering) as well as a preparation method and a detection method of the kit. The kit consists of an SERS nano-label based on a gold core and a gold shell and functionalized magnetic beads, the structure of the SERS nano-label based on the gold core and the gold shell comprises the gold core, a Raman dye modified on the surface of the gold core, the gold shell coated on the surface, a sulfydryl polyethylene glycol carboxyl (HS-PEG-COOH) and sulfydryl polyethylene glycol (PEG-SH) protective layer outside the gold shell, and a free testosterone antigen. The method is simple and convenient to operate, can be used for analyzing trace free testosterone in a sample, has the advantages in the aspects of simplicity and convenience in operation, detection period, analysis cost and the like, and has important significance on rapid diagnosis of diseases caused by abnormal content of free testosterone.

A lip balm formulation for applying to a lip including at least one lipid, a surfactant, and a nicotine active, wherein the lip balm formulation includes about 25 wt. % to 60 wt. % of the surfactant based on the total weight of the formulation; wherein the surfactant includes a mixture of mono- and diglycerides and propylene glycol; wherein the surfactant has an HLB of 4; wherein the lip balm formulation includes about 30 wt. % to 60 wt. % of the at least one lipid based on the total weight of the formulation; wherein the at least one lipid includes hydrogenated palm oil; and wherein the surfactant minimizes the surface tension of the at least one lipid.

The invention belongs to the technical field of immunoassay, and particularly relates to a testosterone immunodetection reagent sample releasing agent formula. The invention discloses a testosterone immunodetection reagent sample releasing agent formula, and the testosterone immunodetection reagent sample releasing agent formula comprises the following components: ethisterone (CAS: 434-03-7) which is dissolved in a buffer solution.

A lip balm formulation for applying to a lip including at least one lipid, at least one surfactant, and at least a first derivative of Cannabaceae, wherein the lip balm formulation includes about 25 wt. % to 60 wt. % of the surfactant based on the total weight of the formulation; wherein the surfactant includes a mixture of mono- and diglycerides and propylene glycol; wherein the surfactant has an HLB of 4; wherein the lip balm formulation includes about 30 wt. % to 60 wt. % of the at least one lipid based on the total weight of the formulation; wherein the at least one lipid includes hydrogenated palm oil; wherein the surfactant minimizes the surface tension of the at least one lipid, and wherein the lip balm formulation includes about 0.1 wt. % to 40 wt. % of the first derivative of Cannabaceae.

The invention belongs to the technical field of medical experimental animal models, and particularly relates to a construction method of a rabbit ear acne model for studying acne pathogenesis and drug curative effect. A healthy New Zealand large-ear white rabbit is selected, a testosterone solution is subcutaneously injected to induce endocrine disorder, oleic acid is smeared at an opening of an external auditory canal on the inner side of an ear, dermatobacterium acnes suspension is subcutaneously injected, and whether acne-like lesions such as erythema, papule and comedo appear on the skin of the ear or not is observed. The method is easy and convenient to operate, low in cost, good in repeatability, capable of simulating the pathological process of human acne and suitable for acne pathogenesis research and drug screening.

The invention discloses a non-specific peroxidase HecUPO derived from Hypoxylon sp. (strain EC38), wherein the amino acid sequence of the non-specific peroxidase HecUPO is as shown in SEQ ID NO: 1. The enzyme can efficiently catalyze testosterone to generate 16 alpha-hydroxylation reaction to generate C16 alpha-hydroxytestosterone, the conversion rate reaches 70%, the separation yield reaches 82%, no by-product is generated, and the C16 alpha-hydroxytestosterone has excellent regioselectivity. The invention also discloses a gene for coding the HecUPO, a recombinant plasmid pPICZA-HecUPO containing the gene, a recombinant pichia pastoris engineering bacterium and an application of the recombinant pichia pastoris engineering bacterium in steroid hydroxylation. The non-specific peroxidase HecUPO disclosed by the invention has the advantages of being high in catalytic efficiency, specific in regioselectivity, simple in reaction system, green, environmentally friendly and the like, and a new enzymology resource is provided for fixed-point hydroxylation modification of steroid drugs.

A trans-mucosal testosterone delivery composition for humans or animals having from about 50 to 99 wt. % humectant, from about 1 to 50 wt. % water, from about 0.001 to 25.00 wt. % testosterone, from about 0 to 25 wt. % oil, and from about 25 to 1 wt. % surfactant, wherein the composition is hydrophobic and has release properties.

The application relates to the field of animal immunization castration vaccines, in particular to a protein, a nucleic acid, an expression vector, a castration vaccine, a method and application. The protein is shown as SEQ ID NO: 1. The nucleic acid is shown as SEQ ID NO: 2. The expression vector comprises the nucleic acid. The castration vaccine takes the protein, the nucleic acid or the expression vector as an effective component. The method comprises the steps of preparing the nucleic acid and / or the expression vector. The application comprises the preparation of the castration vaccine. The protein, the nucleic acid, the expression vector and / or the castration vaccine can produce an immune response in mice, reduce the testosterone and estrogen levels in mice and produce obvious trend effects.

The invention belongs to the technical field of biological medicines, and provides a method for synthesizing testosterone 17-O-beta-D-glucosyl-(1-> 4)-6 ''-O-acetyl-beta-D-glucoside through two-step enzymatic coupling. Mainly relates to an intermediate compound testosterone 17-O-beta-D-glucosyl-(1-> 4)-beta-D-glucoside for synthesizing the molecule, mutant amino acid and nucleotide sequences of glycosyl transferase OsSGT2 for synthesizing the intermediate, and synthesis application. In addition, the invention also provides an application of the testosterone 17-O-beta-D-glucosyl-(1-> 4)-6 ''-O-acetyl-beta-D-glucoside in liver protection.

Disclosed are bioavailable solid state (17-β)-3-Oxoandrost-4-en-17-yl dodecanoate compositions and methods of use in administration to mammals in need of thereof. The (17-β)-3-Oxoandrost-4-en-17-yl dodecanoate is preferably provided in a solid state crystalline form having a plurality of peaks corresponding to the peaks shown in FIG. 2, a plurality of crystallites ranging in size from about 40 nm to about 60 nm based as identified via powder x-ray diffraction spectra, and a melting point in the range of about 51° C. to about 63° C. The compositions may be provided in oral or injectable administration form for the treatment of conditions such as in need of testosterone therapy. An exemplary chemical structure of a (17-β)-3-Oxoandrost-4-en-17-yl dodecanoate composition disclosed herein is as follows:

The invention discloses a method for detecting related substances in testosterone enanthate by high performance liquid chromatography. A mobile phase A and a mobile phase B are used as mixed mobile phases for gradient elution; the mobile phase A is water; the mobile phase B is acetonitrile; the volume ratio of the mobile phase A to the mobile phase B is (5%-70%): (30%-95%); a chromatographic column adopted by the high performance liquid chromatography method is Agilent ZORBAX Eclipse XDB-C8, and the detection method is characterized in that the detection method is simple and easy to implement. According to the method, the testosterone enanthate and the related substances thereof are separated and detected by screening a stationary phase chromatographic column and optimizing a mobile phase elution mode and an elution component ratio, and compared with a method in European Pharmacopoeia, after the chromatographic column is subjected to gradient elution, not only is the retention time of an impurity D prolonged, but also the quality of the impurity D is improved. And the separation degree of the impurity F and the impurity G is increased, so that the elution capacity and the separation degree among the impurities are enhanced.

The invention relates to an ultra-sensitive protein chip and a kit for detecting influenza A H3 (H3N2) hemagglutinin protein, which belong to a small molecular marker detection technology and are characterized in that the protein chip is provided with at least one sub-detection area, each sub-detection area is provided with at least one detection spot, and the detection spots are provided with non-overlapping, dispersed and tiled and non-overlapping detection spots. The coating density is 1.5 * 10 < 11 > capture molecules per square millimeter; the capture molecule is a testosterone monoclonal antibody. The testosterone protein chip disclosed by the invention can be used for rapidly detecting influenza A H3 (H3N2) hemagglutinin protein as low as 125fg / ml at low cost, and is beneficial to improving the early and correct diagnosis of influenza A.

Provided are a method of producing a human pluripotent stem cell-derived Leydig-like cell (Leydig-like cells) capable of secreting testosterone stably and persistently, and a human pluripotent stem cell-derived Leydig-like cell. Also provided is a human pluripotent stem cell-derived Leydig-like cell that enables long-term maintenance of a Leydig-like cell secreting a sufficient amount of testosterone, and is improved in efficiency of differentiation induction. The method includes the steps of: culturing a human pluripotent stem cell under a culture condition with addition of one or a plurality of kinds selected from the group consisting of: a WNT canonical pathway activator; bone morphogenetic protein 4 (BMP4); and vascular endothelial growth factor (VEGF); and forcedly expressing NR5A1, and is achieved by controlling the timing of addition and removal of cyclic adenosine monophosphate (cAMP), suspension culture, adhesion culture, and the like.

The present application belongs to the field of nutritional biotechnology, in particular, the present application relates to an anti-aging composition and its application. Through a large number of research and screening, it is found that the combination of specific grape seed extract, ergothioneine and specific black ginger extract can exert the synergistic effect of the three, fully exert the grape seed extract (antioxidant, free radical scavenging), black ginger (testosterone enhancement, muscle function enhancement), ergothioneine (protection of mitochondria and lysosome), form a multi-pathway mechanism, multi-level improvement of aging, improvement of fertility and muscle capacity.

The embodiment of the invention belongs to the technical field of detection, and relates to a test strip, a kit and a method for quantitatively detecting testosterone, the test strip comprises a PVC base plate, and a sample pad, a conjugate pad, a nitrocellulose membrane and a water absorption pad which are sequentially lapped on the PVC base plate; a quality control line and a detection line are arranged on the nitrocellulose membrane, the quality control line is coated with a chicken IgY antibody, the detection line is coated with a testosterone-BSA conjugate, and a fluorescently-labeled testosterone antibody and a fluorescently-labeled goat anti-chicken IgY antibody are fixed on the conjugate pad. The detection speed is effectively improved.

This invention provides a method for simultaneously detecting free and total testosterone in serum. Free testosterone is released from a serum sample using equilibrium dialysis, followed by derivatization. An additive quencher is added to remove excess derivatizing reagent, and then a sample solution containing total testosterone is added for testing. The method provided by this invention is simple to operate, eliminating the need for complex procedures such as nitrogen blowing and liquid-liquid extraction. The quencher chosen is low-toxicity, low-cost pyruvate, which improves detection sensitivity while reducing experimental costs. Furthermore, this invention utilizes the biuret assay to determine whether protein leakage has occurred during equilibrium dialysis, providing a direct and accurate assessment.

A method and oral composition for treating a plurality of end-stage diseases, such as end-stage renal disease, chronic kidney disease, liver cirrhosis, chronic liver failure, end-stage liver disease, cancer, congestive heart failure, pulmonary fibrosis, and chronic obstructive pulmonary disease, are disclosed. In one embodiment of the invention, the composition comprises testosterone duodecanoate.

The present disclosure relates to a specific combination of a progestin and testosterone in a transdermal composition and usage thereof in a method for ensuring male contraception with more efficacy and less side effects.

The present invention provides a method for determining free testosterone by liquid chromatography-tandem mass spectrometry based on ultrafiltration technology. After adding corresponding concentrations of ammonium chloride and ammonium fluoride to reagents in a pretreatment method of serum samples, the extraction efficiency can be significantly improved, the quantitative lower limit can be reduced, the detection sensitivity and stability can be improved, and the actual sample detection requirements can be met. At the same time, 0.1mM ammonium chloride and 0.1mM ammonium fluoride are added to the mobile phase, which can significantly improve the peak shape and increase the chromatographic response. Compared with the common mobile phase addition in the prior art, the quantitative lower limit is significantly reduced. The types of ultrafiltration buffer, extraction agent and resolvent in the pretreatment method are also compared and screened. A HEPES ultrafiltration buffer containing 3mM ammonium chloride and 1mM ammonium fluoride, an ethanol-ether extraction agent containing 2mM ammonium chloride and 1mM ammonium fluoride, and a 30% methanol water reconstitution containing 2.5mM ammonium chloride and 2.5mM ammonium fluoride are selected, which promotes chromatographic detection, improves mass spectrometry response, and significantly reduces the quantitative lower limit to 0.05pg / ml.

The invention provides a mesenchymal stem cell serum-free culture solution and application thereof, and belongs to the technical field of cell culture. The mesenchymal stem cell serum-free culture solution provided by the invention is prepared from UltraGRO-Advanced, adrenocorticotropin, testosterone, curcumin, protocatechuic acid, TNF-alpha (tumor necrosis factor-alpha), GM-CSF (granulocyte-macrophage colony-stimulating factor), SCF (mesenchymal stem cell), insulin, a lipid mixture and the balance of a basic culture medium, the culture solution can remarkably improve the proliferation efficiency of cells and improve the osteogenic differentiation capacity.

The invention provides a traditional Chinese medicine composition for preventing hair loss and promoting hair growth and application thereof, and relates to the technical field of hair loss prevention and promoting hair growth, the traditional Chinese medicine composition is composed of Chinese doughnut, cockscomb, albizia flower, Chinese honey locust, schizonepeta, lithospermum, polygonum multiflorum, prepared rehmannia root, notopterygium root, radix angelicae pubescentis, ruddle and periostracum cicada; in-vitro experiments show that the traditional Chinese medicine composition can promote proliferation of human dermal papilla cells HDPC, relieve the damage degree of HDPC and induce cycle transformation of hair follicles, so that the effect of promoting hair growth is achieved; animal experiments show that the traditional Chinese medicine composition can significantly increase the number of hair follicles and the thickness of skin and dermis fat of mice, reduce the levels of mouse serum IL-2, TNF-alpha and TGF-beta1 and reduce the levels of testosterone, dihydrotestosterone and estradiol in mouse skin tissue, so that hair follicle fibrosis is inhibited, the growth period of hair follicles is accelerated, the growth period is prolonged, the hair loss phenomenon is improved, and the hair loss rate is increased. The hair growth is promoted.

The present invention relates to a pharmaceutical composition comprising a steroid such as testosterone or a functional analogue or derivative thereof, in combination with a PDE5 inhibitor such as sildenafil. The testosterone or the functional analogue or derivative thereof is present in an amount equivalent to no less than 1 mg. The present invention also concerns the use of the pharmaceutical composition for enhancing female sexual desire in the treatment of FSIAD of a patient, as well as methods for identifying suitable patients and for identifying suitable dosage for the use thereof.

The present disclosure relates to methods, uses, compositions, and kits for using testosterones or testosterone derivatives and growth hormone (GH) or GH derivatives to improve muscle mass, muscle strength, or muscle function in a subject, or to reduce fatigue, pain, or obesity. One aspect of the present disclosure relates to combination therapies of testosterones or testosterone derivatives and GH or GH derivatives for treating various disorders associated with muscle wasting or conditions associated with muscle weakness.

Disclosed is a method and oral composition for treating a plurality of End stage diseases such as end-stage renal disease, chronic kidney disease, liver cirrhosis, chronic liver failure, end stage liver disease, Cancer, congestive Heart failure, pulmonary fibrosis, chronic obstructive pulmonary disease. In an embodiment of the invention, the composition comprises testosterone duodecanoate.

The application discloses an oil control composition containing tea extract and products and applications thereof. The oil control composition containing tea extract comprises a tea extract solution, a vitagenin solution and an aesculetin solution. Researches show that the oil control composition has a good oil control effect, can reduce the intracellular IDH concentration by inhibiting the expression level of IDH, thereby regulating the content of testosterone, and achieving the effect of regulating the secretion of skin oil. Meanwhile, the composition is further prepared into oil control cosmetics and used on the skin, can effectively improve the oil absorption and decontamination capacity, can reduce the adhesion and fluidity with the skin, improve the comfort of the user, has a fresh skin feeling, can remove the overflowed oil on the skin, and can control the oil for a long time, moisturize, and effectively improve the state of oily skin and dry skin. In addition, the raw materials used in the application are easy to obtain, can be extracted from plants, are non-toxic and harmless, and are safer to use.

The invention relates to a yak penis extracting solution-containing nutrient solution capable of improving bone mineral density, and also discloses a production process of the nutrient solution, and the production process comprises the following steps: (1) preparing a concentrated yak penis extracting solution; (2) preparing auxiliary liquid; and (3) mixing the prepared concentrated yak penis extracting solution with an auxiliary solution according to a volume ratio of 1: (0.2-0.5), and carrying out conventional sterilization treatment on the mixed solution to obtain a nutrient solution finished product. The nutrient solution contains all essence components of yak penis, and particularly, high-quality testosterone rich in the nutrient solution can promote proliferation and differentiation of bone cells and can directly act on receptors on the surfaces of the bone cells to promote proliferation and maturation of the bone cells, so that the bone mass is increased, and the bone density is improved; the auxiliary liquid beneficial component in the nutrient solution also has the effects of warming and tonifying kidney essence and tonifying and strengthening bones, and can supplement the testosterone component in the yak penis extracting solution, so that the nutrient solution has obvious bone tonifying and strengthening effects on osteoporosis patients.

The invention belongs to the field of biomedicine, and specifically discloses a method for screening a cell line resistant to enzalutamide and an application thereof, comprising the following steps: 1) reviving Lncap cells, and plating cells after the Lncap cells grow to a normal state; 2) after plating the cells, replacing the culture medium with an incomplete culture medium, and starving the Lncap cells; 3) after the starvation treatment, replacing the culture medium with a complete culture medium, and adding testosterone and 0.1-1 mg / mL acetylnitrosourea ENU, and treating for 8-24 hours to induce cell mutation; 4) washing the cells twice with a complete culture medium, and replacing the complete culture medium to continue culturing for more than 24 hours; 5) adding a first concentration of enzalutamide and culturing for one week; 6) using a second concentration of enzalutamide with an increased concentration to culture for one week; 7) using a third concentration of enzalutamide with a further increased concentration to culture for two weeks; 8) after the culture is completed, selecting monoclonal cells for culture amplification, and freezing and preserving; 9) identifying drug resistance to obtain a cell line resistant to enzalutamide.