• Journal of Periodontal and Implant Science
• /
• 제32권1호
• /
• pp.173-186
• /
• 2002

The purpose of this study was to evaluate effect of platelet rich plasma on the treatment of Grade II furcation involvement, with Demineralized Freeze-Dried Bone(Dembone(R)) and bioabsorable membrane(BioMesh(R)) in humans by digital subtraction radiography. 12 teeth(control group) were treated with Demineralized Freeze-Dried Bone(Dembone(R)) and bioabsorable membrane(BioMesh(R)), and 12 teeth(test group) were treated with Demineralized Freeze-Dried Bone(Dembone(R)), bioabsorable membrane(BioMesh(R)) and Platelet Rich Plasma. The change of bone density was assessed by digital subtraction radiography in this study. The change of mineral content by as much as 5%(vol) could be perceived in the subtracted images. The change of mineral content was assessed in the method that two radiographs are put into computer program to be overlapped and the previous image is subtracted by the later one. Both groups were statistically analyzed by Wilcoxon signed Ranks Test and Mann-whitney Test using SPSS program (5% significance level). The results were as follows: 1. In test group, the radiopacity in 3 months after surgery were significantly increased than 1 month after surgery(p<0.05). However. there were no significant difference between 1 month after surgery and 3 months after surgery in control group(p>0.05). 2. In test and control group, the radiopacity in 6 months after surgery were significantly increased than 1 month after surgery(p<0.05) 3. In test and control group, the radiopacity in 6 months after surgery were significantly increased than 3 months after surgery(p<0.05). 4. There were no significant difference between test group and control group at 1 month, 3 months after surgery, but radiopacity in test group were significantly increased than control group at 6 months after surgery(p<0.05). In conclusion, Platelet Rich Plasma can enhance bone density.

• Journal of Periodontal and Implant Science
• /
• 제31권2호
• /
• pp.465-475
• /
• 2001

The purpose of this study was to evaluate effect of platelet rich plasma on the treatment of Grade II furcation involvement, with and without porous resorbable calcium carbonate($Biocoral^{(R)}$)in humans by digital subtraction radiography. 15 teeth(control group) were treated with porous resorbable calcium carbonate($Biocoral^{\(R)}$), and 15 teeth(test group) were treated with porous resorbable calcium carbonate($Biocoral^{(R)}$) and Platelet Rich Plasma. The change of bone density was assessed by digital subtraction radiography in this study. The change of mineral content by as much as 5%(vol) could be perceived in the subtracted images. The change of mineral content was assessed in the method that two radiographs are put into computer program to be overlapped and the previous image is subtracted by the later one. Both groups were statistically analyzed by Wilcoxon signed Ranks Test and Mann-whitney Test using SPSS program(5% significance level). The results were as follows: 1. In test group, the radiolucency in 3 months after surgry were significantly increased than 1 month after surgery(p<0.05). 2. In test group, there were no significant difference between 1 month after surgery and 6 months after surgery(p>0.05). 3. In test group, the radiopacity in 6 months after surgery were significantly increased than 3 months after surgery(p<0.05). 4. In control group, the radiolucency in 3 months and 6 months after surgery were significantly increased than 1 month after surgery(p<0.05). 5. In control group, the radiopacity in 6 months after surgery were significantly increased than 3 months after surgery(p<0.05). 6. There were no significant difference between test group and control group at 1 month, 3 months after surgery, but radiopacity in test group were significantly increased than control group at 6 months after surgery(p<0.05). In conclusion, Platelet Rich Plasma can enhance bone density.

• Asian-Australasian Journal of Animal Sciences
• /
• 제13권3호
• /
• pp.323-328
• /
• 2000

The administration of soluble glass bolus (SGB) with cobalt (Co), selenium (Se) and copper (Cu), among 50 upgraded does in the farm of Central Luzon State University, Philippines, was effective in improving the mineral status of the animals. After one year, blood Se and plasma Cu had been significantly increased; subsequently plasma molybdenum (Mo) level had been reduced, but other macro-minerals were not affected. Soluble glass bolus supplementation did not affect plasma calcium (Ca), magnesium (Mg), and sodium (Na), although the treated does had higher plasma phosphorus (P), potassium (K), and zinc (Zn) in some parts of the year. Hematocrit count of the animals was also improved reaching 32% level after 9 months; although it was still 6% below the lower limit of a normal range of 38 to 45%. The desired improvement in Se, Cu and Mo was not able to influence live weight among the animals. After one year, body weight was not significantly different from the control group of animals. Nevertheless, the study showed the effectiveness of SGB in improving Cu and Se levels, and subsequently reducing the plasma Mo levels of grazing goats in a typical Philippine farm.

• Asian-Australasian Journal of Animal Sciences
• /
• 제5권2호
• /
• pp.303-308
• /
• 1992

Three female sheep were daily administered a pyrophosphate analogue, disodium 1-hydroxyethylidene-1, 1-bisphosphonate (HEBP) at the level of 4 mg/kg body weight. HEBP largely suppressed bone resorption, which was indicated by the reduction in plasma free hydroxyproline concentration and in calcium mobilization rate during the intravenous infusion of disodium ethylenediaminetetraacetate (EDTA). Contrary to the suppression of bone resorption, plasma total-calcium, magnesium and phosphorus concentrations were not changed by HEBP administration. These results suggest that bone mineral crystals play a meaningless role on calcium, magnesium and phosphorus homeostasis in ruminants if they are fed adequate amounts of these minerals. Plasma magnesium and phosphorus concentrations were not significantly changed after feeding. However, plasma total-calcium was decreased after feeding in both periods and the reduction seemed to be remarkable in the HEBP-treated period. Infusion of EDTA more remarkably reduced plasma ionized calcium concentration in the HEBP-treated that in the untreated period and the recovery of ionized calcium was retarded by HEBP administration. These results suggest that calcium release from bone is necessary for maintenance of plasma calcium when animals rapidly lose calcium.

• 한국식품저장유통학회지
• /
• 제4권3호
• /
• pp.317-321
• /
• 1997

The mineral components of the Gastrodia elata Blum were determined by inductively coupled plasma-atomic emission spectrophtometry. The mineral component contents of the Gastrodia elata Blum were greater in the order of Fe < Na < Mg < Ca < P < K. The antioxidative effects of the Gastrodia elata Blum extracts on refined perilla oil were investigated by the rancimat method, peroxide value and TBA value. The antioxidative effects of Gastrodia elata Blum added to the refined perilla oil was increased with dose-dependent fashion in concentration of Gastrodia elata Blum extracts. The peroxide value and TBA value for their antioxidation stability were also lower than that of control. Antioxidation stability was increased in a dose-dependent manner.

• 한국식품위생안전성학회지
• /
• 제1권2호
• /
• pp.177-179
• /
• 1986

우리나라에서 널리 식용되고 있는 7종의 버섯(능이버섯, 양송이버섯, 밤버섯, 표고버섯, 싸리버섯, 느타리버섯과 송이버섯)에 대해서 20종의 무기원소의 함량을 측정하여 다음과 같은 결과를 얻었다. 1) 대부분의 검시 버섯류에서 Fe, Na 및 Zn의 함량이 타무기 원소류보다 높은 함량으로 검출되었다. 2) 유해금속원소인 Cd, Hg, Pb 및 As 등은 흔적 정도로 검출되었다. 3) Sb, Se 및 Sn은 전시료에서 검출되지 않았다.

• 한국영양학회:학술대회논문집
• /
• 한국영양학회 1999년도 추계학술대회 초록
• /
• pp.38-38
• /
• 1999

• 한국가금학회지
• /
• 제22권4호
• /
• pp.193-202
• /
• 1995

This study was carried out to investigate the effects of diverse dietary Ca levels and to determine whether bone mineral metabolism is influenced by the arnount of dietary Ca when given a choice of diets containing various levels of Ca. Forty Hy-line brown laying hens housed in separate cages were fed self-selected Ca diets. Birds were allowed a 7-day adaptation period followed by an 8-day collection period. Feed and water were available for ad libitum consumption. Eggs and excreta were collected at 6-h intervals during the day for mineral analysis. The Ca contents in excreta and retained Ca in the body on egg forming day were proportional to the amount of daily Ca intake. The retained Ca in the body were 0.97 g in control and 1.24~1.74 g in self-selected groups, respectively. Daily Ca contents (%) in tibial cortex were not consistent with feeding time intervals. The Ca content in tibial medulla in control group was lower than those of self-selected feeding groups(P<.05). The medullary Ca content in all treatment groups increased from 10:00 to 16:00 in a day. Ca content in plasma was low between 10:00 and 16:00 and was high between 22:00 and 04:00 in the following day.

• 한국자원리싸이클링학회:학술대회논문집
• /
• 한국자원리싸이클링학회 2006년도 춘계임시총회 및 제27회 학술발표대회
• /
• pp.56-60
• /
• 2006

In 2005, the imports of titanium metals was about 22.8 million US$(7,700 tons) in Korea. New scrap produced was estimated to be 359 tons and the exports were about 352 tons. Generally scrap is recylced into titanium ingot either with or without virgin metal using traditional vacuum-arc-melting and cold hearth melting. In Korea, there is no titanium ingot producers(recyclers). In this paper, the brief summary of major titanium melting technology, such as vacuum arc remelting(VAR), electron beam melting(EBM), plasma arc melting(PAM) is given and discussed. In view of titanium market situation of Korea, the technological development of ingot production from scrap is big problem to be solved in order to realize extensive cost reduction for titanium products.

• Nutrition Research and Practice
• /
• 제4권6호
• /
• pp.507-514
• /
• 2010

Vitamin K intake has been reported as an essential factor for bone formation. The current study was conducted under the hypothesis that insufficient vitamin K intake would affect inflammatory markers and bone mineral density in young adult women. The study was a cross-sectional design that included 75 women in their 20s. Physical assessments, bone mineral density measurements, 24-hr dietary recalls, and biochemical assessments for high sensitivity C-reactive protein (hs-CRP) and percentages of undercarboxylated osteocalcin (%ucOC) were performed. An analysis of vitamin K nutritional status was performed comparing first, second, and third tertiles of intake based on %ucOC in plasma. Vitamin K intake levels in the first, second, and third tertiles were $94.88{\pm}51.48\;{\mu}g$, $73.85{\pm}45.15\;{\mu}g$, and $62.58{\pm}39.92\;{\mu}g$, respectively (P < 0.05). The T-scores of the first and third tertiles were 1.06 and -0.03, respectively, indicating that bone mineral density was significantly lower in the group with lower vitamin K intake (P < 0.05). There was a tendency for different serum hs-CRP concentrations between the first ($0.04{\pm}0.02$) and third tertiles ($0.11{\pm}0.18$), however this was not statistically significant. Regression analysis was performed to identify the correlations between vitamin K nutritional status, inflammatory markers, and bone mineral density after adjusting for age and BMI. Serum hs-CRP concentrations were positively correlated with vitamin K deficiency status (P < 0.05). And bone mineral density, which was represented by speed, was negatively correlated with vitamin K deficiency status (P < 0.05). In conclusion, status of vitamin K affects inflammatory status and bone formation. Therefore, sufficient intake of vitamin K is required to secure peak bone mass in young adult women.