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골다공증 환자 혈청이 정상인 조골세포의 성장과 분화에 미치는 영향
김진,이재훈,김경욱,이광원,한상배,김환묵 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.4
Osteoporosis is a condition in which an imbalance appears between bone resorption and formation, with bone resorption exceeding formation. Recent studies have shown that bone formation abnormalities in various forms of osteopenia result mainly from defective recruitment of osteoblastic cells. These abnormalities in osteoblast function and bone formation are associated with alterations in the expression or production of several growth factors, such as TGF-β which modulate the proliferation and activity of bone-forming cells. Bone transplantation is an absoulte requirement in several patholigical conditions. The growth factors, such as TGF-β, PDGF, were the effective in promoting growth of the bone in vitro and in animal models. We have investigated the effects of PDGF and TGF-β on the proliferation and differentiation of the normal human osteoblast in vitro culture. The normal human osteoblast from iliac bone were primarily cultured. The serums obtained from the osteoporotic patients and the normal was used to quantify PDGF and TGF-β from the osteoporotic patients serum and the normal serum. To clarify the effects of the various different the culture conditions such as 1×10 exp(4) cells/㎖, 2.5×10 exp(4) cells/㎖, 5×10 exp(4) cells/㎖, 10×10 exp(4) cells/㎖ (0.2∼2×10 exp(4) cells/well) of the osteoblast at 24 hours, 48 hours, 72 hours under 10% FBS, 10% normal human serum, 10% osteoporotic human serum, 3% normal human PRP, 3% osteoporotic human PRP. The cell proliferation and differentiation was determined by [^3H]-thymidine and SRB assay, and the magnitude of differentiation to osteoblast was confirmed by von Kossa staining and alkaline phosphatase stain and measuring the alkaline phosphatase activity during 48 hours and 72 hours. Statistical differences were evaluated using the scheffe's test. The ANOVA procedure of the SAS system. The obtained results were as follows ; 1. The age distribution of normal human was 36.9±4.4 old, osteoporotic human was 72.5±0.2 old with statistical significant difference(p<0.05). 2. The quantification of TGF-β of the normal human serum was 39658.38±11630.43 pg/㎖, the osteoporotic human serum was 30459.40±1704.92 pg/㎖ with statistical significant difference. The quantification of PDGF of the normal human serum was 3064.13±709.51 pg/㎖, the osteoporotic human serum was 2514.13±140.21 pg/㎖ with no statistical significant difference(p<0.05). 3. The DNA synthesis and protein assay of human osteoblast at 24 hours, 48 hours, 72 hours was similar increased to 10% normal human seurm, 10% osteoporotic human serum. There was no statistical significant difference between the normal human and the osteoporotic patients in 3% normal human PRP and 3% osteoporotic human PRP. 4. The optimal cell concentration was 5×10 exp(4) cells/㎖ among 1×10 exp(4) cells/㎖, 2.5×10 exp(4) cells/㎖, 5×10 exp(4) cells/㎖, and 10×10 exp(4) cells/㎖. The DNA synthesis was decreased after 72 hours in the normal human serum and PRP, the osteoportic serum and PRP. 5. The alkaline phosphatase activity was as the same result 10% FBS, 10% osteoportic serum and 10% normal human serum at 48 hours with no statistical significant, but the alkaline phosphatase activity was increased in 10% osteoportic human serum and 10% normal human serum except 10% FBS at 72 hours. From above result, the amount of TGF-β of the normal human growth factor was higher than the osteoporotic patients, but the growth factors of the osteoportic patients were enough the proliferation and differentiation of normal human osteoblasts such like the same effects of normal human growth factors.
중년여성들의 숙련자와 비숙련자간 수영운동 후 신체조성 비교
김형묵,박관도 청주대학교 학술연구소 2004 淸大學術論集 Vol.4 No.-
The purpose of this study is to analyze 'how swimming' for twelve weeks affects the body development of middle-aged women. An investigation into the body development of thirteen women in a two-month period and a one-year period was performed. Each woman that participated in the swimming trials was asked to continually practice one hour in the morning three times a week before and after the investigation. The study arrived at the following conclusion. 1) The weight after swimming was found to have decreased significantly by 0.7kg in the case of the unskilled group and 0.6kg in the case of the expert group. 2) FAT(%) before and after investigation had similarly decreased by 2% in the case of the unskilled group and by 1.7% in the case of the expert group. FAT percentages(%) of the unskilled group were reduced by more than 0.3% when compared to the expert group. 3) FAT mass(kg) before and after the investigation had similarly decreased by 1.3kg in the case of the unskilled group and by 1.1kg in the case of the expert group. FAT mass(kg) of the unskilled group was reduced by more reduced by more than 0.2kg in comparison with the expert group. 4) The variation of lean body mass(kg) before and after the investigation had increased by 0.8kg in the case of the unskilled group and by 0.5kg in the case of the expert group. Lean body mass(kg) of the unskilled group increased by more than 0.3kg in comparison with the expert group. 5) Total body water before and after the unskilled group and expert group didn't change. In summation, swimming for one hour three times a week was found to reduce the FAT(%) and FAT mass(kg) of middle-aged women.
A New Early-Maturing and Disease Resistant Potato Cultivar, "Jowon"
Kwan Soo Kim,Young Eun Park,Hyun Mook Cho,Ji Hong Cho,Young Il Hahm,Jung Yun Yi,Hyo Won Suh,Jeom Soon Kim,Kwan Yong Shin,Myoung Soon Yiem,Hyun Joon Kim,Dong Mo Son,Hyun Sook Kim 한국육종학회 2004 한국육종학회지 Vol.36 No.1
‘Jowon’ is a new early-maturing potato variety for table use. It has spreading growth habit with narrow oval leaves. Its tubers are attractively round with white skin and light yellow flesh color. The yielding ability of Jowon is similar to Superior. Jowo
A New Dark Purple Skin and White Flesh Potato Cultivar, "Jaseo"
Kwan Soo Kim,Young Eun Park,Hyun Mook Cho,Ji Hong Cho,Hyo Won Suh,Young Il Hahm,Kyoung Yul Ryu,Kwan Yong Shin,Myoung Soon Yiem,Hyun Joon Kim,Yul Kyun Ahn,Dong Mo Son,Hyun Sook Kim 한국육종학회 2004 한국육종학회지 Vol.36 No.1
Most of recommended potato varieties in Korea are white skin colored. Purple skinned potatoes have been recognized as being effective in the prevention of gastric disease. A new variety “Jaseo” has dark purple skin and white flesh colors, and attractive r
A New Potato Cultivar “Jasim” with Purple Skin and Fresh Color
Kwan-Soo Kim,Young-Eun Park,Hyun-Mook Cho,Ji-Hong Cho,Jung-Yoon Yi,Young-Il Hahm,Jeom-Soon Kim,Kwan-Yong Shin,Hyun-Joon Kim,Dong-Mo Son,Jun-Hyun Noh 한국육종학회 2003 한국육종학회지 Vol.35 No.4
Jasim is a new purple skinned and purple fleshed variety with oval tuber shape. It is late maturing having erect topgrowth habit with narrow oval shaped leaves. It tends to have higher yielding and desirable flesh coloration in early spring crop ofdserve as a new gourmet item for meeting various desires of consumers and broadening the consumption of potatoes.
A New Early-Maturing Potato Cultivar for Chip Processing “Gawon”
Kwan-Soo Kim,Young-Eun Park,Hyun-Mook Cho,Ji-Hong Cho,Jung-Yoon Yi,Young-Il Hahm,Kwan-Yong Shin,Yul-Kyun Ahn,Dong-Mo Son,Jun-Hyun Noh 한국육종학회 2003 한국육종학회지 Vol.35 No.4
tic. It has round tuber shape, and light yelow skinned white fleshed tuber colors. Its growth habit is semi-erect to spreading withsmall leaves and medium height. It is resistant to late blight and potato virus Y(PVY), and tolerant against both hollow heart andmmonscab.