Compositon for preventing or treating osteoporosis
a technology for osteoporosis and composition, applied in the field of composition for preventing or treating osteoporosis, can solve the problems of difficult control of when to administer, reported side effects and disadvantages, and achieve the effects of increasing bioaffinity, inhibiting bone resorption, and increasing bone formation
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preparation example 1
Preparation of Gentiana scabra and Sambucus williamsii Extracts
[0090]In order to prepare a Gentiana scabra extract and a Sambucus williamsii extract, 2 L of distilled water was placed into each 100 g of the original and hot water extraction was carried out at 90° C. for 5 hours. The filtered extract solutions were concentrated under reduced pressure at 50° C. to obtain samples in powder form through lyophilization. The yields of the Gentiana scabra extract and the Sambucus williamsii extract were 15.4% and 9.27%, respectively.
experimental example 1
Cytotoxicity Evaluation
[0092]In this experimental example, an experiment was carried out to confirm the effect on the cytotoxicity when treated with the Sambucus williamsii extract and the Gentiana scabra extract of the present invention.
[0093]1×104 MC3T3-L1 cells were seeded into a 96-well plate, and DMEM containing 10% FBS was used as the culture medium. After incubation for 12 hours, each extract (Examples 1 to 5) was treated at 100-1000 μg / ml and incubated for 24 hours. Then, 20 μl of WST reagent was added thereto, light was blocked with foil to minimize WST reduction by light, and the reaction was carried out for 3 hours. Optical density was measured at a wavelength of 560 nm using an iMARK™ Microplate Reader (Bio-Rad Laboratories Headquarters, Hercules, Calif., USA).
[0094]The obtained results of the cytotoxicity for each extract with ED50 (which is a concentration at which cell viability is 50%) are shown in Table 2 below. As a result, it was shown that the Gentiana scabra ext...
experimental example 2
Alkaline Phosphatase Activity (ALP Activity) Measurement
[0095]In this experimental example, an experiment was carried out to confirm the effect on the alkaline phosphatase acitivity when treated with the Gentiana scabra extract and the Sambucus williamsii extract of the present invention by concentration. On the other hand, alkaline phosphatase (ALP; basic phosphatase) is present in most tissues, and ALP present in bone tissue is known to increase its activity when bone growth is actively occurring.
[0096]5×103 MC3T3-L1 cells were seeded into a 6-well plate, and 50 μg / ml ascorbic acid and 10 mM β-glycerophosphate were added to induce differentiation into osteoblasts. After they were treated with each of Reference Examples 1 and 2 and Examples 1 to 3 at concentrations of 50 μg / ml, 100 μg / ml, and 200 μg / ml, and incubated for 48 hours at 37° C. in 5% CO2 incubator, and then washed twice with PBS, and 0.2% triton X-100 was added thereto, and subsequently, lysis was carried out in a 37° C...
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