Ahn, Tae-Young;Jeong, Dal Sang;Kim, Jun-Hwan;Kang, Ju-Chan
Journal of fish pathology
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v.26
no.2
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pp.89-97
/
2013
The study was carried out to investigate the changes of hematological parameters induced by waterborne exposure of chromium (Cr) in the mullet, Mugil cephalus. The mullet was exposed to sub-chronic concentrations of chromium (0, 25, 50, 100, $200{\mu}g/L$ Cr) for 4 weeks. The major hematological findings were significant decreases in the red blood cell (RBC) count and hematocrit value in mullet exposed to ${\geq}50{\mu}g/L$ Cr. Although serum calcium concentration was significantly reduced at ${\geq}50{\mu}g/L$ Cr, magnesium concentration was found to be significantly increased at ${\geq}100{\mu}g/L$ Cr. The serum glucose and total protein concentrations were significantly increased at $200{\mu}g/L$ Cr. However, serum triglyceride concentration did not show any noticeable changes in the range of $25{\sim}200{\mu}g/L$ Cr of chromium compared to control group during the experimental period. A significant increment of GOT (glutamic oxalate transminase) and GPT (glutamic pyruvate transminase) activities was noticed at ${\geq}100{\mu}g/L$ Cr. These results indicate that hematological and serum biochemical changes in the mullet by waterborne exposure to chromium are affected at more than $50{\mu}g/L$ Cr.
The bacterial toxin, tolaasin, causes brown blotch disease on the cultivated mushrooms by collapsing fungal and fruiting body structure of mushroom. Cytotoxicity of tolaasin was evaluated by measuring hemolytic activity because tolaasins form membrane pores on the red blood cells and destroy cell structure. While we investigated the inhibitions of hemolytic activity of tolaasin by $Zn^{2+}$ and $Cd^{2+}$, we found that $Ni^{2+}$ is another antagonist to block the toxicity of tolaasin. $Ni^{2+}$ inhibited the tolaasin-induced hemolysis in a dose-dependent manner and its Ki value was $\sim10$ mM, implying that the inhibitory effect of $Ni^{2+}$ is stronger than that of $Cd^{2+}$. The hemolytic activity was completely inhibited by $Ni^{2+}$ at the concentration higher than 50 mM. The effect of $Ni^{2+}$ was reversible since it was removed by the addition of EDTA. When the tolaasin-induced hemolysis was suppressed by the addition of 20 mM $Ni^{2+}$, the subsequent addition of EDIA immediately initiated the hemolysis. Although the mechanism of $Ni^{2+}$ -induced inhibition on tolaasin toxicity is not known, $Ni^{2+}$ could inhibit any of fallowing processes of tolaasin action, membrane binding, molecular multimerization, pore formation, and massive ion transport through the membrane pore. Our results indicate that $Ni^{2+}$ inhibits the pore activity of tolaasin, the last step of the toxic process.
Lectins are carbohydrate-binding and a cell-agglutinating proteins, and are concerted with a plants defence mechanism. In particular, chitin-binding lectins in locular fluid of cherry tomato fruit seemed to have a role in defending plants against fungi. The antifungal activity using lectin isolated from locular fluid of cherry tomato fruit was measured in the plant pathogen Cladosporium cucumerinum, Monosporascus cannonballus, Fusarium oxysporum, and Rhizoctonia solani. Amoung the four strains, a potent antifungal activity was detected in Cladosporium cucumerinum and Monosporascus cannonballus, not in Fusarium oxysporum, and Rhizoctonia solani. The molecular weight of this lectin isolated as double protein bands by SDS-PAGE was calculated to be 87 kDa and 47 kDa from the relative mobilities compared with those of reference molecular weight markers. The isolated lectin agglutinated human red blood cells (A, B, AB, O) treated with trypsin, and the most activity was found at B. The optimal temperature of isolated lectin was at $30^{\circ}C$. For the thermal stability, lectin was stable at $20-80^{\circ}C$. The optimal pH of this lectin was at 7.2, and showed complete loss below pH 9.0.
Kim, M.H.;Lee, B.H.;Chung, K.T.;Chang, K.J.;Kim, M.J.;Lee, J.K.;Lee, M.
The Korean Journal of Nuclear Medicine
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v.1
no.1
/
pp.67-78
/
1967
Over the past 6 years, from May 1960 to June 1966, 1,716 patients with various diseases of thyroid were examined and thyroid function tests with $^{131}I$ were done. Among them, 545 patients with hyperthyroidism were treated with $^{131}I$. A summary of the clinical data of the $^{131}I$-thyroid function tests and the therapeutic results of $^{131}I$ were presented and discussed. 1. The patients examined consisted of; 596 cases(34.7%) with toxic diffuse goiter, 412 cases(24.0%) with non-toxic nodular goiter, 278 cases(16.2%) with euthyroidism, 236 cases(13.8%) with non-toxic diffuse goiter, 89 cases(5.2%) with hypothyroidism, 53 cases(3.1%) with toxic nodular goiter, 32 cases(1.9%) with thyroiditis and 20 cases(1.2%) with dyshormonogenesis. 2. There were 218(12.7%) male patients and 1,498(87.3%) female patients, showing a ratio of 1:6.9. female predominantly. 3. The majority of patients(79.6%) were in the 3rd through 5th decades of their lives showing the peak in the 4th decades(35.9%). 4. The diagnostic values and normal ranges of $^{131}I$ uptake test, 48 hour serum activity, $T_3$ red blood cell uptake and $PB^{131}I$ conversion ratio were discussed. 5. An attention was given to dyshormonogenesis, a qualitative hypothyroidism, due to its characteristic findings of clinical and $^{131}I$ thyroid function tests, and its pathogenesis was briefly reviewed. 6. Among 545 patients with hyperthyroidism treated with $^{131}I$, 68.3% was cured after single. therapeutic dose and another 24.0% was cured after second dose. 7. The complications of $^{131}I$ therapy were discussed in some details and myxedema had developed. in 3.9% of our cases. No thyroid cancer was found after $^{131}I$ therapy.
Journal of the Korea Academia-Industrial cooperation Society
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v.20
no.11
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pp.157-163
/
2019
This study determines the difference in prevalence of anemia and hemoglobin concentration between chronic obstructive pulmonary disease (COPD) and control groups in the elderly. Moreover, this study also examines the prevalence of anemia and hemoglobin concentration according to the severity of COPD in the elderly. Medical records of 8150 participants who answered the 7th National Health and Nutritional Survey conducted in 2016 were reviewed, and a total of 694 participants was included in the analysis. Participants were classified into two groups: COPD and control groups. Laboratory studies on hemoglobin, hematocrit, red blood cell concentration and prevalence of anemia were collected. Subgroup analysis was also conducted according to the severity of COPD. No significant differences were determined for the prevalence of anemia and hemoglobin concentration between both groups. Hemoglobin concentration was significantly higher in the COPD group. Although not statistically significant, there was a tendency for decrease in the prevalence of anemia and increase in the hemoglobin concentration as the severity of COPD increased. Our findings present specific data about the prevalence of anemia and hemoglobin concentration in elderly patients with COPD. Hence, we propose that occurrence of anemia in elderly patients with COPD requires further evaluation of the causes.
Sohn, Bongyeon;Kim, Hak Ju;Chang, Hyoung Woo;Lee, Jae Hang;Kim, Dong Jung;Kim, Jun Sung;Lim, Cheong;Park, Kay Hyun
Journal of Chest Surgery
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v.53
no.6
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pp.339-345
/
2020
Background: Iliac artery aneurysm is frequently found in patients undergoing surgical repair of an abdominal aortic aneurysm. The use of commercial bifurcated grafts is insufficient for aorto-biiliac replacement with complete iliac artery aneurysm resection. We evaluated the effectiveness of handmade composite grafts for this purpose. Methods: A total of 233 patients underwent open surgery for abdominal aortic aneurysm between 2003 and 2019, including 155 patients (67%) treated with commercial grafts and 78 patients (33%) treated with handmade composite grafts. Their operative characteristics, postoperative outcomes, and late outcomes were retrospectively reviewed. Results: The early mortality rate did not differ significantly between the groups. On average, the handmade composite graft technique took approximately 15 minutes longer than the commercial graft technique (p=0.037). Among patients who underwent elective surgery, no significant differences between the conventional and composite groups were observed in the major outcomes, including red blood cell transfusion volume (2.8±4.7 units vs. 3.1±4.7 units, respectively; p=0.680), reoperation for bleeding (2.7% vs. 3.1%, respectively; p>0.999), bowel ischemia (0% vs. 1.6%, respectively; p=0.364), and intensive care unit stay duration (1.9±6.6 days vs. 1.6±2.4 days, respectively; p=0.680). The incidence of target vessel occlusion also did not differ significantly between groups. Conclusion: The increased technical demand involved with handmade composite grafting did not negatively impact the outcomes. This technique may be a viable option because it overcomes problems associated with commercial grafts.
The supply of different fatty acids during the development period has significant effects. This study examined the effects of dietary $\omega$3 and $\omega$6 fatty acid compositions on phospholipids (PLs) of RBC and rat brain subcellular fractions (synaptosome, microsome, mitochondria), and on learning ability of the 2nd generation rat. Rats were fed experimental diets 3-4 wks prior to the conception. Early in the lactation period, the feeding mothers were exchanged. Diets consisted of 10% fat(by weight), which was either safflower oil('S') poor in $\omega$3 fatty acids or computer-searched mixed oil('M') with P/M/S ratio, 1/1.4/1 and $\omega$6/$\omega$3 ratio, 6.1/1. The 'S' and 'M' rats were subdivided further into SS, SM, MS & MM rats according to their lactation stauts. At 3 (weaning) & 9 wks of age, the percentage of total $\omega$3 fatty acids to their lactation status. At 3 (weaning) & 9 wks of age, the percentage of total $\omega$3 fatty acids and the ratios of $\omega$3/$\omega$6 fatty acids in PLs of RBC and brain subcellular fractions in SM and MM groups fed milk from the mixed oil-fed mothers for 2 wks tended to be higher than those in SS and MS groups respectively. In contrast, the concentrations of $\omega$6 fatty acids, especially 22:5$\omega$6 in all fractions, were significantly lower in the SM & MM groups compared to those of the SS & MS groups respectively. In contrast, the concentration of $\omega$6 fatty acids, especially 22:5$\omega$6 in all fractions, were significantly lower in the SM & MM groups compared to those of the SS & MS groups, The values for the DHA$\omega$3/22:5$\omega$6 ratios after the lactation period were markedly higher in the groups (SM & MM) which were reared by mixed oil(MO) fed mothers. In carring out Y-water maze at 9th wk of age, the SM(4.2$\pm$0.5) & MM (5.3$\pm$0.5) groups made significantly less errors compared to the SS(6.2$\pm$0.6, p<0.05 compared with SM) & MM (7.2$\pm$0.5, p<0.05 compared with MM) groups which were lactated by the safflower oilfed mothers. Therefore, by feeding a balanced fatty acid diet from the lactation period up to 9 wks of age as compared with the groups fed $\omega$3 fatty acid-deficient diet regardless of mother's diet given before parturition. The levels of DHA(synaptosome) and 22:5$\omega$3 (mitochondria) were positively correlated not only with these values in RBC but also with visual discriminating ability. The levels of DHA and 22:5$\omega$3 in RBC can, therfore, reflect visual discriminatng ability in the rat.
The antigenecity of somatic substances of S. pullorum standard strain and variant strain extracted byheat treatment, acid treatment and their modification, ammonium sulfate saturation (60 per cent), trypsin digestion was tested by indirest hemagglutination test and precipitation test and following results were optained. 1. Teatment at $100^{\circ}C$ for an hour of the bacteria could extract the antigen of S. pullorum standard strain and variant strain which was demonstrable by hemagglutination reaction with the human a group and chicken red blood cell. 2. Trypsin digestion was more enhanced its antigenecity in acid extracted antigen of S. pullorum variant strain compare with the S. pullorum standard strain. 3. The extracted antigenic substances of S. pullorum standard strain existed chiefly in the elicited fraction of precipitate at the treatment of ammonium sulfate saturation and after trypsin digestion, its antigenecity was demonstrated by hemagglutination. 4. At the treatment of ammonium sulfate treatment, did not occur the precipicate in acid extracted antigens of S. pullorum variant strain, however, the heal extracted antigen, positive reactions were obtained in both of the precipitate and supernatant fraction of the S. pullorum variant strain by hemagglutination reaction. After trypsin digestion, these fraction also exhibited positive reactions. 5. Precipitation test also tested dub could not detect in any soft of the antigens.
Deng, Qian-Qian;Huang, Xin-En;Ye, Li-Hong;Lu, Yan-Yan;Liang, Yong;Xiang, Jin
Asian Pacific Journal of Cancer Prevention
/
v.14
no.1
/
pp.413-417
/
2013
Purpose: This phase II study was undertaken to determine the efficacy and safety of Loubo$^{(R)}$ (Lobaplatin) in combination with pemetrexed in treating patients with metastatic breast cancer who failed to respond to anthracycline or taxanes. Patients and Methods: Metastatic breast cancer cases who had previously received an anthracycline and a taxane in either adjuvant or metastatic settings, were enrolled. All patients were recruited from Jiangsu Cancer Hospital and Research Institute, and were treated with Loubo$^{(R)}$ (Lobaplatin) 35 $mg/m^2$ (intravenous; on day 1) and pemetrexed 500 $mg/m^2$ (intravenous; on day 1) every 21 days. Efficacy and side effects were evaluated after at least two cycles of chemotherapy. Results: All eligible 19 patients completed at least 2 cycles of chemotherapy with pemetrexed and lobaplatin, and were evaluable. Overall, 3 (15.8%) patients achieved partial response, 11 (57.9%) stable disease, 5 (26.3%) progression of disease, with no complete remission. Response rate was 15.8%, disease control rate was 42.1%. The median survival time was 10.3 months. Neutrophil suppression occurred in 36.8% of patients who had grade 2 toxicity, and 26.3% had grade 3, 26.4% had grade 4. Thrombocytopenia was encountered as follows: 21.1% grade 2, 15.8% grade 3 and 5.5% grade 4. Incidences of anemia were 10.5% in grade 2, 5.3% grade 3 and 0% grade 4. Only 5.3% of patients required packed red blood cell transfusion. Grade 3 digestive tract toxicity occurred in 5.5% of patients. Other toxicities included elevated transaminase,oral mucositis and skin rashes. Conclusions: The regimen of lobaplatin and pemetrexed is modestly active in metastatic breast cancer patients who failed anthracycline or taxanes, and the toxicity profile suggesting that the doses of chemotherapy should be further modified.
Objectives : Suoyounsoodan(首烏延壽丹) composed of Polygonum multiflorum THUNB. and some medical herbs is known as formula of senescence delay effect The purpose of this study is to investigate the effect of Suoyounsoodan(首烏延壽丹) on antioxidant enzyme activity such as Thiobarbituric acid reactive substance(TBARS), Superoxide dismutase(SOD), Catalase(CAT), Glutathione peroxidase(GSH-px) in rat plasma and liver. Methods: Sprague-Dawley rats divided into 4 groups, Young group(8 weeks old, N-8), Aging group(18 weeks old, N-18), pathologically induced aging group(injected D-galactose 50mg/kg, 1time/day for 6 weeks, CON) and Suoyounsoodan(首烏延壽丹) administered group(D-galactose 50mg/kg and Suoyounsoodan extracts 840.0mg/kg 1time/day for 6 weeks, SOY). Rats were sacrificed and TBARS, SOD, CAT, and GSH-px were mesured in rat plasma and liver. Results: Plasma and liver TBARS concentrations of SOY group was sinificantly lower than that of control. Red blood cell(RBC) SOD activities of SOY group was increased(F=3.405, p=0.034, ANOVA test), and RBC catalase activities of all experimental groups were not significantly different. RBC GSH-px activities of SOY group was increased(F=9.261, p=0.0001, ANOVA test). Liver SOD activities of SOY group was higher than that of control(F=3.806, p=0.023, ANOVA test). Liver catalase activities of all experimental groups were not significantly different, and liver GSH-px activity of SOY group was significantly higher than that of control(F=3.572, p=0.029, ANOVA test). Conclusions: According to the above results, It is considered Suoyounsoodan is effective in inhibiting lipid peroxidation and increasing anti oxidative enzyme activities in D-galactose induced aging rat.
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