• Title/Summary/Keyword: alkaline phophatase

Search Result 24, Processing Time 0.022 seconds

Potential Effect of Monascus-fermented Soybean Extracts on Alkaline Phosphatase Activity of Human Osteoblast-like Cells

  • Pyo, Young-Hee;Kwon, Mi-Ja;Kim, In-Ho
    • Food Science and Biotechnology
    • /
    • v.17 no.2
    • /
    • pp.434-437
    • /
    • 2008
  • The aim of this study was to investigate whether Monascus-fermented soybean extracts (MFSE) containing natural estrogen-like compounds such as isoflavones and mevinolins has potential effects on human osteoblast-like SaOS2 cells using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) and alkaline phophatase (ALP) assaies. MFSE exerted biphasic dose-dependent effect; stimulating osteoblastic activity at low concentrations and inhibiting SaOS2 cells viability at high concentrations. At $10^{-8}-10^{-4}\;mg/mL$, MFSE is not only non-cytotoxic but also induced comparatively high ALP activity on SaOS2 cells. ALP activity (%) significantly increased (220.1%, p<0.05) when SaOS2 cells were treated with MFSE at a concentration of $10^{-5}\;mg/mL$, whereas slowly increased (185.6%, p<0.05) in unfermented soybean extracts (UFSE) at $10^{-3}\;mg/mL$. The potentially greater ALP activity of MFSE compared to the UFSE might partially be caused by its mevinolin, which was derived from the soybean during Monascus-fermentation. Our findings indicate that supplementation of MFSE may accelerate the speed of intracellular ALP synthesis by the bone cells when provided at optimal dosages.

Distribution and Some Properties of the Alkaline Phosphatase from the Midgut of the Earthworm, Eisenia andrei (지렁이 중장에서 분리한 Alkaline Phophatase의 분포와 특성에 관한 연구)

  • 박희우;조성진;조표연;이명식;이규석;박순철
    • The Korean Journal of Soil Zoology
    • /
    • v.5 no.1
    • /
    • pp.39-46
    • /
    • 2000
  • The distribution and some properties of alkaline phosphatase (ALP) were investigated in the midgut of the earthworm, Eisenia andrei. The ALP activity appeared to be highly polarized toward the luminal side of epithelium, with minor ALP activity in chloragogue tissue. The epithelial and chloragogeneous tissues contained approximately 85 and 15% of total intestinal ALP activity, respectively. The optimal temperature was approximately 37$^{circ}C$ and isoelectricpoint was estimated to be 4. The treatment of neuraminidase and PtdIns-PLC failed to change the migration rate of ALPs. Also, these ALPs appeared to have a wide range of substrate specificity. The relationship between the properties and physiological significances of the midgut ALPs in Eisenia andrei was discussed.

  • PDF

Vitamin D Status and Related Biochemical Parameters of Women in Korean (한국여성의 Vitamin D 상태 및 관련 생화학적 변인에 관한 연구)

  • 문수재
    • Journal of Nutrition and Health
    • /
    • v.29 no.7
    • /
    • pp.758-771
    • /
    • 1996
  • This study attempted to define reference data for the distribution of vitamin d status and to explore the relationship between vitamin D status and related biochemical indices in Korean women. The vitamin D status of 179 Korean women aged from 20 to 75 years was analyzed by using HPLC(High Pressure Liquid Chromatography). Related biochemical indices such as iPTH, alkaline phosphatase, creatinine, albumin, Ca, Mg and P were also measured. The mean serum level of 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D were s25.8ng/ml and 89.8pg/ml, respectively. Low 25-hydroxyvitamin D (<25nmol/L) was found in 29 subjects(16.5%). There was a significantly progressive decrease in serum 25-hydroxyvitamin D with increasing age(p<0.05). After in their, there was a dramatical reduction in 25-hydroxyvitamin D(p<0.05). It was also significant in post-menopasusal women compared with pre-menopausal women(p<0.000). Serum alkaline phosphatase levels increased significantly with age(p<0.001). Whereas serum calcium and phosphorus levels remained constant with age. Serum 250-hydroxyvitamin D was invesely related to iPTH (p<0.05) and alkaline phophatase (p<0.001).

  • PDF

Expression and Purification of Recombinant Human Bone Morphogenetic Protein-7 (rhBMP-7) in Bacillus subtilis (고초균을 이용한 재조합 인간 골 형성 단백질-7의 발현과 정제)

  • Kim, Chun-Kwang;Oh, Sung-Duk;Rhee, Jong-Il
    • KSBB Journal
    • /
    • v.25 no.3
    • /
    • pp.257-264
    • /
    • 2010
  • Bone morphogenetic protein-7 (BMP-7) is one of important growth factors for skeletal development and bone growth. In this work, BMP-7 was efficiently expressed in recombinant Bacillus subtilis. The mature BMP-7 protein indicated molecular weight of 15.4 kDa by Western blot assay and was secreted into culture medium with 0.35 ng/mL. The extracellular and intracellular rhBMP-7 proteins were purified by using a FPLC system with an ion exchange column and a gel filtration column. The extracellular and intracellular rhBMP-7 proteins had finally a 57.1% purity and a 36.2% purity, respectively. The purified rhBMP-7 proteins showed an intact biological activity which stimulated alkaline phophatase (ALP) activity in MC3T3-E1 cells.

The changes of osteocalcin, bone-specific alkaline phosphatase, estrogen, IGF-I, Ca2+, P and bone mineral density on osteoporosis induced by ovariectomy in rats (흰쥐에서 난소제거술로 유발시킨 골다공증시 osteocalcin, bone- specific alkaline phosphatase, estrogen, IGF-I, Ca2+, P와 bone density의 변화)

  • Kim, Nam-soo;You, You-soon;Kang, Chang-won;Choi, In-hyuk
    • Korean Journal of Veterinary Research
    • /
    • v.40 no.4
    • /
    • pp.755-762
    • /
    • 2000
  • The aim of this investigation was to examine the effects of osteocalcin, bone-specific alkaline phophatase, estrogen, insulin-like growth factor-I (IGF-I), Ca, P and bone mineral density on osteoporosis induced by ovariectomy in rats. Female Sprague-Dawley 30 rats of three-forth's birth, weighing $215{\pm}10g$, were divided into two groups including the sham operation group(5 heads) and ovariectomy group(25 heads). They were fed normal diets for 2 weeks before the experimental operation and for 8 more weeks after operation. The level of osteocalcin, TALP, BALP, estrogen, bone mineral density and IGF-I were increased in experimental group, but a little increased in sham operation group at same period. The change of rates of osteocalcin, TALP, BALP, estrogen, bone mineral density and IGF-I were significantly higher in experimental group than sham operation group. $Ca^{2+}$ was not changed between two groups and P was significantly decreased in experimental group and Ca/P ratio was higher in experimental group than sham operation group. Body weights were increased in all two groups and growth rate per day was higher in experimental group than sham operation group. However, femur weight I body weight ratio was lower in experimental group than sham operation group.

  • PDF

Prediction of Intravenous Immunoglobulin Nonresponse Kawasaki Disease in Korea (한국인에서 면역글로불린-저항성 가와사키병 환자의 예측)

  • Choi, Myung Hyun;Park, Chung Soo;Kim, Dong Soo;Kim, Ki Hwan
    • Pediatric Infection and Vaccine
    • /
    • v.21 no.1
    • /
    • pp.29-36
    • /
    • 2014
  • Purpose: The objective of this study was to find the predictors and generate a prediction scoring model of nonresponse to intravenous immunoglobulin in patients with Kawasaki disease. Methods: We examined 573 children diagnosed with KD at the Severance Children's Hospital between January 2009 and december 2012. We retrospectively reviewed their medical records. These patients were divided into 2 groups; the experimental group (N=433) and the validation group (N=140). Each group were divided into 2 groups the intravenous immunoglobulin nonresponders and the responders. Multivariate logistic regression analysis identified predictive factors of intravenous immunoglobulin nonresponders which make predictive scoring model. We practice internal validation and external validation. Results: Multivariate logistic regression analysis identified male, cervical lymphadenopathy, changes of the extremities, platelet, total bilirubin, alkaline phophatase, lactate dehydrogenase, C-reactive protein as significant predictors for nonresponse to intravenous immunoglobulin. We generated prediction score assigning 1 point for (1) male, (2) cervical lymphadenopathy, (3) changes of the extremities, (4) platelet (${\leq}368,000/mm^3$), (5) total bilirubin (${\geq}0.4mg/dL$), (6) alkaline phophatase (${\geq}227IU/L$), (7) lactate dehydrogenase (${\geq}268IU/L$), (8) C-reactive protein (>77.1 mg/dL). Using a cut-off point of 4 and more with this prediction score, we could identify the intravenous immunoglobulin nonresponder group. Sensitivity and specificity were 52.5% and 82.4% in experimental group and 37.8% and 81.8% in validation group, respectively. Conclusion: Our predictive scoring models had high specificity and low sensitivity in Korean patients. Therefore it is useful in predicting nonresponse to intravenous immunoglobulin with Kawasaki disease.

EFFECTS OF ALENDRONATE AND PAMIDRONATE ON THE PROLIFERATION AND THE ALKALINE PHOSPHATASE ACTIVITY OF HUMAN BONE MARROW DERIVED MESENCHYMAL STEM CELLS (Alendronate와 Pamidronate가 인간 골수유래 간엽줄기세포의 증식과 알칼리성 인산분해효소 활성에 미치는 영향)

  • Kim, Young-Ran;Ryu, Dong-Mok;Kwon, Yong-Dae;Yun, Yong-Pil
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.35 no.6
    • /
    • pp.397-402
    • /
    • 2009
  • The purpose of this study is to investigate the effects of alendronate and pamidronate on proliferation and the alkaline phosphatase activity of human bone marrow derived mesenchymal stem cells and to relate the results with bisphosphonate related osteonecrosis of the jaw(BRONJ). With the consent of patients with no systemic disease and undergoing iliac bone graft, cancellous bone was collected to obtain human bone marrow derived mesenchymal stem cells through cell culture. 96 well plate were prepared with a concentration of $10^4$cell/ well. Alendronate and pamidronate were added to each well with the concentration of $10^{-6}M$, $10^{-8}M$ and $10^{-10}M$, respectively. Then proliferation capacity of each well was evaluated with the cell counting kit. 24 well plates were prepared with a concentration of $10^5$cell/ml/well and with the bone supplement, alendronate and pamidronate were added with the concentration of $10^{-6}M$, $10^{-8}M$ and $10^{-10}M$, respectively on each plate. The plates were cultured for either 24 or 72 hours. Then the cells were sonicated to measure the alkaline phosphatase activity and protein assay was done to standardize the data for analysis. As the concentration of alendronate or pamidronate added to the culture increased, the proliferation capacity of the cells decreased. However, no statistical significance was found between the group with $10^{-10}M$ of bisphophonate and the control group. Pamidronate was not capable of increasing the alkaline phosphatase activity in all trials. However, alkaline phosphatase activity increased with 24 hours of $10^{-8}M$ of alendronate treatment and with 48 hours of $10^{-10}M$ of alendronate treatment. Cell toxicity increased as the bisphosphonate concentration increased. This seems to be associated with the long half life of bisphosphonate, resulting in high concentration of bisphosphonate in the jaw and thus displaying delayed healing after surgical procedures. Alendronate has shown to increase the alkaline phophatase activity of human bone marrow derived mesenchymal stem cells. However, this data is insufficient to conclude that alendronate facilitates the differentiation of human bone marrow derived mesenchymal stem cells. Further studies on DNA level and animal studies are required to support these results.

Effects of Mulberry-Leaf Powder Tofu on Carpus Mineral Density, Biochemical Markers of Bone Turnover and Lipid Profiles in Female University Students from Choongnam Consuming Low Calcium Diet (뽕잎 분말 첨가 두부가 충남 일부지역 저칼슘 섭취 여대생의 손목 골밀도, 생화학적 골대사지표 및 지질성상에 미친 영향)

  • Kim, Ae-Jung;Kim, Myung-Hwan;Han, Myung-Ryun;Choi, Mi-Kyeong;Kim, Mi-Hyun;Kang, Nam-Mi
    • The Korean Journal of Food And Nutrition
    • /
    • v.21 no.1
    • /
    • pp.71-78
    • /
    • 2008
  • This study examined the effects of mulberry-leaf powder Tofu(MPT) on the anthropometric measurements, bone mineral density(BMD), biochemical markers of bone turnover, serum lipid levels of and macrominerals status in 30 female university students living in Choongnam with low dietary Ca intake was low(mean daily $intake=524.66{\pm}21.47$ mg/day). The subjects received the MPT supplemented(100 g/day) for 4 weeks. The nutrient content per 100 g MPT was 84.10 kcal(energy), 8.98 g(protein), 0.53 mg(fiber), 211.33 mg(Ca) and 1.59 g(fat). Anthropometric measurements, 24-hour dietary recall, carpus BMD using DEXA, select BMD biomarckers(serum alkaline phophatase activity, osteocalcin, urinary deoxypyridinoline), serum protein levels, albumin, and glucose levels, lipid profiles(cholesterol, triglyceride, HDL-cholesterol, LDL-cholesterol) and serum macrominerals(Ca, Ca/P ratio, Mg) were analyzed before and after MPT supplementation. Following MPT supplementation, there was no significant differences in anthropometric measurements, nutrient intakes, carpus BMD, serum alkaline phosphatase activity, osteocalcin, and urinary deoxypyridinoline, serum levels of protein, albumin, and glucose or lipid profiles with AI, HTR, LHR and CRF. However, there were significant increases in dietary calcium as well as decreases in serum triglycerides with MPT supplementation. Although further research is needed, these results that regular intake MPT could prevent bone and cardiovascular diseases.

Three Cases of Radiation-Induced Hepatitis B Virus Reactivation after Hepatic Tomotherapy: Case Report (간암의 토모테라피 후 발생한 B형 간염 바이러스 재활성화 3예: 증례보고)

  • Kong, Moon-Kyoo;Hong, Seong-Eon;Kim, Byung-Ho;Choi, Jin-Hyun
    • Radiation Oncology Journal
    • /
    • v.29 no.1
    • /
    • pp.53-62
    • /
    • 2011
  • Radiation-induced liver disease (RILD) has been characterized as a veno-occlusive disease with anicteric elevation of alkaline phosphatase (ALP). However, some RILD patients present with elevated transaminase levels rather than with anicteric elevation of ALP, and these findings are common in the Asia-Pacific region where hepatitis B virus (HBV) infection is associated with 70~90% of hepatocelluar carcinoma (HCC) cases. In addition, the development of RILD is more common in patients with hepatitis B virus-related HCC. These findings indicate that susceptibility to RILD might be different in HBV carriers and non-carriers, and moreover, RILD in patients with HBV-related HCC might be associated with another unique pathogenesis such as HBV reactivation. However, HBV reactivation after hepatic irradiation has been reported in only a few studies. This study reports three cases of HBV reactivation alter hepatic tomotherapy for management of HCC.

Effect of Mugwort on Inhibition of the Duodenal Ulcer Induced by Cysteamine Administration (Cysteamine에 의한 십이지장 궤양 발생에 쑥 첨가 식이가 미치는 영향)

  • 이지연
    • Journal of Nutrition and Health
    • /
    • v.29 no.6
    • /
    • pp.608-614
    • /
    • 1996
  • This study was performed to investigate the influcence of mugwort on the duodenal ulcer induced by cysteamine administration in rats. Five groups of rats were fed each experimental diet containing 0%, 5%, 15%, 30% of mugwork powder for 10 weeks. Duodenal ulcer was induced by cysteamine injection (400mg/100g body weight) after 10 weeks of feeding experimental diets (C-0, C-5, C-15, C-30). Control animal that fed 0% mugwork powder added diet were injected saline (S-0) to compare with cysteamine injected groups. When the duodenal ulcer induced by cysteamine-HCI administration, all animals in the C-0 group formed erosion and perforating ulcer was found in 44% of animals. Higher the added mugwork ratio, more inhibited of the duodenal ulcer induced by cysteamine administration (C-5, C-15). But when the ratio of added mugwort is 30%, the inhibition effect disappeared (C-30). The alkaline phospatase activities were lower at the duodenal mucosa and small intestinal mucosa in the cysteamine treated groups(p<0.05). The acid phophatase activities were higher at the stomach, small intestine and large intestine of the cysteamine treated groups. But in mugwort added diet group, the changes of enzyme activites were lessended. The maltast activities were lower at the duodental mucosa and small intestinal mucosa of cysteamine treated groups. But in mugwort added diet group, maltase activites were recovered.

  • PDF