• Title/Summary/Keyword: blood groups

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Effects of contamination by either blood or a hemostatic agent on the shear bond strength of orthodontic buttons

  • Gungor, Ahmet Yalcin;Alkis, Huseyin;Turkkahraman, Hakan
    • The korean journal of orthodontics
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    • v.43 no.2
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    • pp.96-100
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    • 2013
  • Objective: To evaluate the effects of contamination by either blood or a hemostatic agent on the shear bond strength (SBS) of orthodontic buttons. Methods: We used 45 freshly extracted, non-carious, impacted third molars that were divided into 3 groups of 15. Each tooth was etched with 37% phosphoric acid gel for 30 s. Human blood or the blood stopper agent was applied to the tooth surface in groups I and II, respectively. Group III teeth were untreated (controls). Orthodontic buttons were bonded to the teeth using light-curing composite resin. After bonding, the SBS of the button was determined using a Universal testing machine. Any adhesive remaining after debonding was assessed and scored according to the modified adhesive remnant index (ARI). ANOVA with post-hoc Tukey's test was used to determine significant differences in SBS and Fisher's exact test, to determine significant differences in ARI scores among groups. Results: ANOVA indicated a significant difference between groups (p < 0.001). The highest SBS values were measured in group III ($10.73{\pm}0.96$ MPa). The SBS values for teeth in groups I and II were significantly lower than that of group III (p < 0.001). The lowest SBS values were observed in group I teeth ($4.17{\pm}1.11$ MPa) (p < 0.001). Conclusions: Contamination of tooth surfaces with either blood or hemostatic agent significantly decreased the SBS of orthodontic buttons. When the contamination risk is high, it is recommended to use the blood stopper agent when bonding orthodontic buttons on impacted teeth.

Blood Glucose Control and Increase Immunity Effects of β-glucan added Cooked Barley Noodle in High-Fat Diet and Streptozotocin-Induced Diabetic Mice (고지방식이와 streptozotocin으로 유도된 당뇨 생쥐에서 β-glucan이 첨가된 보리숙면의 혈당조절과 면역력증진 효과)

  • Park, Chungmu;Yoon, Hyunseo
    • Journal of The Korean Society of Integrative Medicine
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    • v.6 no.2
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    • pp.89-98
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    • 2018
  • Purpose : This study was designed to examine the blood glucose control and increase immunity effects of ${\beta}-glucan$ added cooked barley noodle in streptozotocin-induced diabetes mice with a high-fat diet. Method : Forty-eight male ICR mice (6-week-old) were fed AIN-93 diet for 4 weeks. Mice were divided into six groups: normal, diabetic, cooked barley noodle, ${\beta}-glucan$ (5 %) control and two experimental groups (${\beta}-glucan$ 2.5 % and 5 %, cooked barley noodle contained diet with ${\beta}-glucan$ 2.5 % and 5 % w/w). Diabetes mellitus was induced by intraperitoneal injection of streptozotocin (150 mg/kg). Result : Blood glucose level was significantly decreased in groups consuming cooked barley noodles, but no significant difference was exhibited in diabetic and ${\beta}-glucan$ control group. These results were in accordance with the result of oral glucose tolerance test. Blood interfereon $(IFN)-{\gamma}$ was measured in order to identify increase immunity effect of ${\beta}-glucan$ in diabetic mice. Inhibited $IFN-{\gamma}$ concentration was recovered in cooked barley noodle and ${\beta}-glucan$ control group. Moreover, $IFN-{\gamma}$ concentration was dramatically elevated in ${\beta}-glucan$ contained cooked barley noodle groups in a dose dependent manner. Streptozotocin induced AST and ALT activities were decreased in ${\beta}-glucan$ contained cooked barley noodle groups with a strong lipid lowering effect. Conclusion : Although addition of ${\beta}-glucan$n did not give any significant synergistic effect on cooked barley noodle in blood glucose regulation, suppressed $IFN-{\gamma}$ production by STZ was dramatically enhanced by ${\beta}-glucan$ supplementation in a dose dependent manner. Liver function and blood lipid profile were also in accordance with the increase immunity effect of ${\beta}-glucan$. Consequently, ${\beta}-glucan$ added cooked barley noodle can be consumed as good diets for patients with chronic diseases with reduced immunity.

Triglycerides and C-peptide are Increased in Obese Type 2 Diabetic Patients (비만 제2형 당뇨병 환자에서 중성지방과 C-peptide 증가)

  • Kim, Hee-Seung;Song, Min-Sun;Yoo, Yang-Sook
    • Journal of Korean Biological Nursing Science
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    • v.4 no.2
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    • pp.41-49
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    • 2002
  • Aim To evaluate blood pressure, blood glucose and serum lipid level in obese and nonobese type 2 diabetic patients. Methods 206 obese(76 male, 130 female) and 442 nonobese(208 male, 234 female) type 2 diabetic patients underwent fasting blood glucose, 2-hour postprandial blood glucose, $HbA_1c$ total cholesterol, triglyceride, high density lipoprotein, microalbuminuria, blood urea nitrogen, creatinine and C-peptide were measured. Diabetes was diagnosed according to the American Diabetes Association(ADA)criteria. Obesity was defined as body mass index(BMI, kilograms per meters squared)${\geq}25$. Results In male, systolic blood pressure, triglycerides, microalbuminuria and C-peptide were significant higher in obese than nonobese patients. Fasting blood glucose were significantly lower in obese than nonobese patients. Diastolic blood pressure, 2-hour postprandial blood glucose, $HbA_1c$, total cholesterol, high density lipoprotein, blood urea nitrogen, and creatinine were no difference between 2 groups. In female, triglycerides and C-peptide were significant higher in obese than nonobese patients, Blood pressure, fasting blood glucose, 2-hour postprandial blood glucose, $HbA_1c$, total cholesterol, high density lipoprotein, microalbuminuria, blood urea nitrogen, and creatinine were no difference between 2 groups. Conclusion Our present study supports that increased triglycerides play a major role in increasing the risk of coronary heart disease(CHD) in obese women type 2 diabetic patients.

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Dietary Effect of Tangle-supplementation on the Albino Rats - Specially Nutritional Physiology of Various Levels of Tangle-addition Supplementation - (미역첨가식이(添加食餌)에 관한 영양생리학적(營養生理學的) 연구(硏究) - 특(特)히 미역농도별(濃度別) 첨가식이(添加食餌)가 백서생육(白鼠生育)에 미치는 영향(影響)에 관하여 -)

  • Yang, I.S.;Lee, K.Y.
    • Journal of Nutrition and Health
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    • v.8 no.2
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    • pp.7-13
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    • 1975
  • In the classic point of view, it has well known that the tangle is the mineral source, especially iodide. However, there are few reports that the tangle can be used the high-protein source. With the consideration whether the tangle can be used as a protein source as well as one of the foodstuff or not, this studies is done by animal experiment. The Albino rats to be examined were fed on the basal diet (Table 1) and the others including the polished tangle by weight 2%, 3%, 4% and 5%, as experimental diets, for 4 weeks, respectively. The weight gain(Fig. 1), total amount of diet intake (Fig. 2), total water intake(Fig. 3), feed efficiency ratio (Fig. 4) and protein efficiency ratio (Fig. 5) was measured by each week, respectively. In addition, organ weight (Fig. 6) and blood study (Fig. 7, Fig. 8) was also analyzed at the end of the experiment. As the results of this study, growth rate, that is, weight gain, feed efficiency ratio and protein efficiency ratio in all experimental groups increased more than those of the control group. Moreover, it was also found that weight gain, feed efficiency ratio, protein efficiency ratio by feeding on the 2 percent tangle group was higher than the corresponding values of all experimental groups. However, feed intake and total water gain were the most by feeding on the 5% tangle group. This result may be interpreted to show that the total content of sodium includes more than enough in the feed intakes. To obtain further information concerning the effect of the tangle-dietary conditions on the growth rate of Albino rats, it was measured the organ weight. In the adrenal and spleen, the total weight by feeding on the all experimental groups were decreased more than that in the case of the control group. In the other hand, in the liver the weight by feeding on the high concentration groups (4%, 5% tangle diets) were not higher than the control group, while in the case of the low concentration groups (2%, 3% tangle diets) were higher than that of the control group. When it was observed the blood components, total protein, hemoglobin, sodium, potassium, white blood cell and red blood cell of rats, the content of white blood cell by feeding on all experimental groups were lower than that by feeding on the control group, but it was also clear that in the other components except white blood cell in blood the contents by feeding on all experimental groups were similar to that in the case of the control groups. However, in the 5% tangle group, the content of sodium was the lowest of all experimental groups, where as the content of potassium was the highest of all experimental groups.

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The influence of sodium hypochlorite concentration on the fibrin structure of human blood clots and transforming growth factor-beta 1 release: an ex vivo study

  • Anisha Mishra ;Velmurugan Natanasabapathy;Nandini Suresh
    • Restorative Dentistry and Endodontics
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    • v.47 no.4
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    • pp.42.1-42.11
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    • 2022
  • Objective: This study investigated the effects of various concentrations of sodium hypochlorite (NaOCl) on human whole-blood clotting kinetics, the structure of the blood clots formed, and transforming growth factor (TGF)-β1 release. Materials and Methods: Human whole blood was collected from 5 healthy volunteers and divided into 4 groups: CG (control, 0.5 mL of blood), BN0.5 (0.5 mL of blood with 0.5 mL of 0.5% NaOCl), BN3 (0.5 mL of blood with 0.5 mL of 3% NaOCl), and BN5.25 (0.5 mL of blood with 0.5 mL of 5.25% NaOCl). The effects of NaOCl on clotting kinetics, structure of fibrin and cells, and release of TGF-β1 were assessed using thromboelastography (TEG), scanning electron microscopy (SEM), and enzyme-linked immunosobent assay, respectively. Statistical analysis was conducted using the Kruskal Wallis and Mann-Whitney U tests, followed by the post hoc Dunn test. A p value < 0.05 indicated statistical significance. Results: The blood samples in BN0.5 and BN3 did not clot, whereas the TEG of BN5.25 showed altered clot formation. Samples from the CG and BN3 groups could only be processed with SEM, which showed that the latter lacked fibrin formation and branching of fibers, as well as clumping of red blood cells with surface roughening and distortion. TGF-β1 release was significantly highest in BN3 when all groups were compared to CG (p < 0.05). Conclusions: Each concentration of NaOCl affected the release of TGF-β1 from blood clots and altered the clotting mechanism of blood by affecting clotting kinetics and cell structure.

Experimental of Cerebral Vasospasm and Measure the Mean Blood Flow Velocity in the Middle Cerebral Artery

  • Park Byung-Rae
    • Biomedical Science Letters
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    • v.11 no.4
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    • pp.435-439
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    • 2005
  • To determine the appropriate concentration of papaverine hydrochloride(PPV) for therapeutic intraarterial infusion against cerebral vasospasm and to measure the mean blood flow velocity of the middle cerebral artery in rabbits. Vasospasm was induced in the experimental groups (3 days after infusion; group 1, n=3, 7 days after infusion; group 2, n=3) and a control group (n=l) by placing a blood clot in the subarachnoid space around the top of the internal carotid siphon. PPV (5 mg/kg) was infused into the internal carotid artery. The vascular diameters of the internal carotid artery (ICA) and middle cerebral artery (MCA) were measured on angiograms before and after infusion. The mean blood flow velocity in the MCA was measured on transcranial doppler sonograms before and 24 hours after infusion. After fixation, the MCA was dissected out, stained, and examined microscopically. After PPV infusion in both groups, vascular dilatation of about $20\%$ was seen. The mean increase in blood flow velocity in the group $1(30\%)$ was smaller than in the group $2(70\%)$. The mean blood flow velocity in the MCA decreased by about $30\%$ in both groups, but increased again after 24 hours nearly to the level before PPV infusion. PPV infusion may be more effective in early stages of vasospasm when vascular walls have fewer histologic changes.

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Impact of Waist Stabilization Exercise with Blood Flow Restriction on White Area Index of Trunk Muscle Thickness Density

  • Park, jae-Cheol;Kim, Yong-Nam
    • The Journal of Korean Physical Therapy
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    • v.28 no.2
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    • pp.136-141
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    • 2016
  • Purpose: In this study experiments were performed during 6 weeks with 40 adults, 20 subjects in the waist stabilization exercise with blood flow restriction group and 20 subjects in the waist stabilization exercise without blood flow restriction group, in order to determine the impact of waist stabilization exercise on White Area Index (WAI) followed by blood flow restriction. Methods: Thickness of external oblique abdominal muscle, internal oblique abdominal muscle, and transversus abdominis muscle, as well as density and WAI of external oblique abdominal muscle were measured, followed by performance of repeated ANOVA. Results: Significant difference in thickness of external oblique abdominal muscle according to periodical difference was observed between groups (p<0.05). Significant difference in thickness of internal oblique abdominal muscle and transversus abdominis muscle according to periodical difference was observed between groups (p<0.05). Significant difference in density and WAI of external oblique abdominal muscle according to periodical difference was observed between groups (p<0.05). Conclusion: In conclusion, significant difference was observed after waist stabilization exercise with blood flow restriction. These results can be used as basic data for future research on waist stabilization exercise and blood flow restriction exercise.

Effects of Sodium Intakes on Blood Pressure and Blood Parameters in Korean Normal Adult Women (나트륨 섭취수준이 정상 성인 여성의 혈압과 혈액성상에 미치는 영향)

  • 이영근;승정자;최미경;이윤신
    • Journal of Nutrition and Health
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    • v.35 no.7
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    • pp.754-762
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    • 2002
  • This study was performed to investigate the effect of sodium intake on blood pressure and blood parameters. 20 young adult women were fed the diets containing 290.5 mEq (high-Na diet) and 51.3 mEq (low-Na diet) Na for 6 days, respectively. BMI, DBP, and MBP were significantly lower in low-Na diet than those in high-Na diet. 20 subjects were divided into 3 groups according to the salt-sensitivity. In salt-sensitive group, decreases in SBP, DBP, and MBP by low-Na diet were shown. And there were not significant difference in blood pressure of salt-resistant group between high- and low-Na diet. In count-reactive group, MBP in low-Na diet was significantly higher than that in high-Na diet. Hemoglobin, creatinine, uric acid, and haptoglobin levels in serum were significantly higher in low-Na diet than those in high-Na diet. Among groups with different salt-sensitivity, increments of haptoglobin by low-Na diet were shown in salt-sensitive and counter-reactive groups. Actually, low sodium diet affects not only the blood pressure, but other biochemical parameters which in turn affect an individual overall health. Also salt-sensitivity should be considered as an important determinant. Therefore, for the patients who need restricted Na diet, it would be suggested that various biochemical changes and individual salt-sensitivity should be carefully considered along with dietary Na manipulation.

The Supplementary Effects of Harvesting Lentinus edodes at Different Times on Treating Blood Pressure and Serum Lipid Levels in Spontaneously Hypertensive Rats (채취 시기가 다른 표고버섯의 첨가가 SHR 흰쥐의 혈압 및 혈청 지질 수준에 미치는 영향)

  • 이성현;박홍주;조용식;조수묵;김미자
    • The Korean Journal of Community Living Science
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    • v.15 no.2
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    • pp.65-71
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    • 2004
  • Many studies have shown that Letinus edodes has some effect on reducing blood pressure and lipid levels of animals with high pressure and hyperlipidemia. The cost of Letinus edodes varies depending on when it is harvested, and yet there has been no data collected on the bio-functional effects of Letinus edodes harvested at different times. This study was conducted to investigate the supplementary effects of Letinus edodes harvested at different times on blood pressure and blood lipid levels of hypertensive rats. Three kinds of experimental diets - control (CO), early harvested Lentinus deodes (EL), and late harvested Lentinus edodes (LL) - were supplied to spontaneously hypertensive rats (SHR) for eight weeks. The diet intake, body weight, organ weight, and serum lipid levels were subsequently measured. No significant difference was observed in diet intake and in the respective weights of the body, liver, and epididymal fat pad among experimental groups. The levels of systolic and disastolic blood pressure were significantly lower in the LE and LL groups than those in the CO group; and the concentration of serum total cholesterol was also lower in the LE and LL groups than in the CO group. These results confirm that Lentinus edodes reduces blood pressure levels and serum total cholesterol concentration in spontaneously hypertensive rats. But the effects of Lentinus edodes did not differ significantly based on whether the Lentinus edodes was harvested early or late.

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Genetic studies of blood markers in Cheju horses I. Red blood cell types (제주마의 혈액형에 관한 연구 I. 적혈구 항원형)

  • Cho, Gil-jae;Kim, Taek-soo;Um, Young-ho;Kim, Bong-hwan;You, Jai-sun
    • Korean Journal of Veterinary Research
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    • v.39 no.6
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    • pp.1066-1072
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    • 1999
  • The present study was carried out to investigate the blood markers of Cheju horses. The red cell types (blood groups) were tested from 73 Cheju native horses and 118 Cheju racehorses by serological procedures with 23 reagents. The blood group phenotypes observed with high frequency were Pb(34.3%), Qc(56.2%), Qb(15.1%) and genotypes Dbcm/dghm(12.3%), Dde/dghm(9.6%), Dad/bcm(6.8%), Dcgm/de(6.8%) in Cheju native horses, while Aa(63.6%), Pa(44.9%), P-(28.8%), Qabc(36.4%), Dbcm/cgm(14.4%), Dbcm/bcm(10.2%), Dbcm/de(7.6%), Dbcm/dghm(5.1%), Dde/dk(5.1%) in Cheju racehorses. Alleles observed with high frequency were Ab(0.128), Ac(0.169), Dad(0.103), Dadn(0.075), Ddghm(0.226), Pb(0.316), Qc(0.494) in Cheju native horses and Aa(0.529), Dbcm(0.306), P-(0.531), Qabc(0.197), Q-(0.504) in Cheju racehorses. No specific variation of blood groups and allele frequencies of C,K,U system were observed in Cheju native horses and Cheju racehorses. The mean heterozygosity in Cheju native horses and Cheju racehorses was observed 0.5344 and 0.5102, respectively.

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