Uses of hydroxyl polymethoxylflavones (HPMFs) and derivatives thereof
a technology of hydroxyl polymethoxylflavones and derivatives, which is applied in the direction of biocide, drug composition, metabolic disorders, etc., can solve the problems of large cost of body weight reduction surgery such as cosmetic surgery and laparoscopic gastric bypass surgery, and the occurrence of many chronic illness diseases. , to achieve the effect of inhibiting lipogenesis and decreasing the lipid accumulation surrounding
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example 1
Preparation of the HPMFs Compound
[0049]10 grams of orange peel extract that contained HPMFs for more than 40% was dissolved in 95% ethanol and added with 3M of hydrochloric acid (HCl). The indicated mixture was incubated with heating circumfluence and monitored by using TLC and LC / MS for 12 hours. Until the reaction finished and cooled, ethanol was removed by vacuum device. In the following step, ethyl acetate and water were added for separation and extraction. An organic solvent phase of the extract was collected, first. The remained aqueous phase was further extract by acetyl acetate again for isolating the organic solvent phase.
[0050]The organic solvent phases were pulled together, diluted with sodium bicarbonate solution, water and 30% NaCl solution for wash, and then dehydrated with sodium sulfate. After filtration, decompression concentration and lyophilized, the gained pale yellow solid substance is a HPMFs compound.
example 2
Culture of 3T3-L1 Pre-Adipocytes
[0051]The 3T3-L1 pre-adipocytes were cultured in 10 cm culture dish with DMEM medium, which contains 10% fetal bovine serum (FBS), 10000 unit / mL of penicillium and 10000 μg / mL streptomycin, at 37° C., 5% CO2, incubator. When the growing cells occupied 70%-80% area of the cultured dish, depletion of cultured medium was followed by PBS washing. The cultured cells were added trypsin-EDTA at 37° C. After the enzymatic digestion, the cultured cells were disassociated from the dish by gentle beats and then adding fresh FBS-containing medium to terminate the enzymatic activity of trypsin-EDTA. The disassociated cells were further well separated by pipetting using pipetman several times. The cells were evenly distributed in the culture dishes and then incubated at 37° C., 5% CO2 incubator.
example 3
Differentiation Test of 3T3-L1 Pre-Adipocytes
[0052]The 3T3-L1 pre-adipocytes seeded into 24-wells plate were cultured in FBS-containing DMEM medium for 3 days. In the following step, the original medium was replaced by another fresh FBS-containing medium for 2 days extension culture. The day after 2 days extension culture is destined as the “day 0”.
[0053]On day 0, the 3T3-L1 pre-adipocytes cultured with different conditions were treated with DMI inductance (DEX+MIX+insulin) for 2 days (day 2) to induce the adipocyte differentiation. After the induction of adipocyte differentiation, the induction medium was replaced by a fresh DMEM medium that contains 10% FBS and 5 μg / mL INS for at least 2 days culture (day 4). On day 4, day 6 and day 8, the culture medium was further replaced by the new 10% FBS-containing DMEM medium.
[0054]During the culture from day 0 to day 8, the morphology of the 3T3-L1 pre-adipocytes was observed every 2 days and the results were shown in FIG. 1A-1E. In additi...
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