• Asian-Australasian Journal of Animal Sciences
• /
• v.17 no.6
• /
• pp.784-793
• /
• 2004

Major objective was to evaluate three doses of bST (POSILAC(R)) injected into Holstein cows during the transition period and through 56 d of lactation for potential to improve DMI, BCS, BW, metabolites, hormones, IGF-I and milk production. Biweekly injections of bST (0, 5.1, 10.2, or 15.3 mg bST/d) began 28 d before expected parturition and continued through 56 d postpartum. Twenty-three of the 25 multiparous Holstein cows assigned randomly to four groups completed experiment (7, 5, 6 and 5 cows/group, respectively). The DMI, BW and BCS were recorded weekly throughout the prepartum and postpartum periods and blood samples were collected thrice weekly for analyses of ST, insulin, $T_{4}$, $T_{3}$, IGF-I, glucose and NEFA. Milk yields were recorded daily through 60 d postpartum and milk components measured once weekly. Mathematical model for data analyses for prepartum and postpartum periods included treatment, calving month, and the two-factor interaction. Cows injected with 10.2 and 15.3 mg bST prepartum had greater mean prepartum concentrations of ST and IGF-I. Prepartum injections of bST did not affect prepartum BW or BCS. On average, cows injected postpartum better maintained their BCS during first 60 d of lactation (3.15$\pm$0.06, 3.12$\pm$0.007, 3.20$\pm$0.006 and 3.58$\pm$0.009). Treatments did not affect mean prepartum DMI but cows injected with 15.3 mg bST/d had greatest DMI and greatest mean daily MY during the first 3 wk and tended to be greater during first 60 d of lactation. Cows injected with two highest bST doses (10.1 and 15.2 mg/d) had greater mean postpartum concentrations of ST and $T_{3}$, but IGF-I, $T_{4}$, glucose and NEFA did not differ across groups. No adverse effects of bST treatment were observed.

• Korean Journal of Microbiology
• /
• v.15 no.4
• /
• pp.154-158
• /
• 1977

Fifteen kinds of antibiotics both in liquid or dry stantes wre investigated for the purpose of radiation effect on the antibiotic activities after irradiation. In liquid states, the antibiotics such as amoxyllin, ampicillin, capharolidin and hetacillin were inctivated 90% of their antibiotic activities at radiation doses of 50Krad, and penicillin, dicloxacillin, caphalothin, cloxacillin, erythromycin and caphalexin and kanamycin were decomposed at radiation doses of 1.5Mrad, respectively. In dry states, all antibiotics were stable at radiation doses of 5Mrad. On the other hand, the neomycin in liquid state was rather increased the antiboctic activity about 1.2 and 8 times when the E. coli ATCC 113-3 and B. subtitilis ATCC 6633 were used aas a standard microorganisms, whereas, the decrensed antibiotic activities were observed in S. typhi Ty-2(36.2%), St.faecium(10.79%), B.sphaericus CIA(9.066%) and St.aureus ATCC 6538p(70%).

• Asian-Australasian Journal of Animal Sciences
• /
• v.21 no.3
• /
• pp.404-413
• /
• 2008

Major objectives were to evaluate effects of three schemes of bST-supplementation of Holstein cows (142.8 mg/14 d, POSILAC) during the prepartum and/or postpartum periods through 63 d (${\pm}3d$) of lactation. Measures evaluated the potential of treatments to improve body weight (BW) and body condition score (BCS), provoke changes in plasma concentrations of somatotropin (ST) and IGF-I, and improve milk yield, milk composition (percentages of protein and fat, and somatic cell counts), and several calving variables. Multiparous Holstein cows were randomly assigned to a $2{\times}2$ factorial arrangement of treatments (TRT) to give four groups (I = no bST, n = 26; II = bST postpartum, n = 25; III = bST prepartum, n = 27; IV = bST prepartum and postpartum, n = 25). During the prepartum period, cows in groups I and II were not supplemented but those in groups III and IV were supplemented every 2-wk beginning 21 d before expected calving date through calving. During the first 63 DIM only cows in groups II and IV were supplemented with bST. From 64 DIM through the end of lactation cows in all groups were supplemented with the full lactation dose of bST (500 mg/14 d). The BW and BCS were recorded weekly throughout the prepartum and postpartum periods and every 2-wk beyond 70 DIM. Blood samples were collected 3-times a week for analyses of ST and IGF-I. Milk yields were recorded daily though 150 DIM. Prepartum supplementation of bST did not affect BW or BCS, but mean concentrations of ST were increased 12.2% and were 15.5% greater at calving. Overall, mean concentration of IGF-I was not affected by treatment but concentrations were greater at 1 and 2 wk before calving in bST-supplemented cows. During the first 63 DIM the BW and BCS were not affected by treatment. Significant effects of bST-supplementation were detected on concentrations of ST, IGF-I and on milk yield compared to non-supplemented cows in group I. Postpartum concentrations of ST were greater in bST-supplemented cows (TRT II and IV; +41.9 and 54.6%). However, concentrations of IGF-I were greater only in cows in group IV (+25.9%) during the postpartum period. Overall, the three bST-supplemented groups had greater actual milk yield than the control group (I) during the first 63 and 150 DIM. The actual milk yields during 63 and 150 DIM were 6.5 and 4.6 kg/d greater for cows in group IV than cows in group I and the 305-d ME milk yield also was 15.6% greater. No adverse effects of TRT were observed on calf birth weight, colostrum immunoglobulins, ease of calving or other measures evaluated.

• Environmental Analysis Health and Toxicology
• /
• v.2 no.1_2
• /
• pp.13-16
• /
• 1987

The author obtained three kinds of humic acid from the soil of suburbs in the Wonju city, sediments of Wonju stream and Maeji reservoir in 29 April 1986. The yield of each humic acid was 7.23 g, 3.35 g and 4.61 g per sample 200 g. In the physicochemical characters, the COD varied from 65.9 ppm to 54.9 ppm and BOD showed 6.7～15.9 ppm, but the standard humic acid was COD 58.9 ppm and BOD 6.5 ppm in 0.01 % solution. Doses of the humic acids for 20% methemoglobin formation are as follows; 0.303 mg/m$\ell$ in St. A humic acid, 0.602 mg/m$\ell$ in St. B humic acid, 0.84 mg/m$\ell$ in St. C humic acid and 0.105 mg/m$\ell$ in standard humic acid.

• Environmental Analysis Health and Toxicology
• /
• v.1 no.1
• /
• pp.55-60
• /
• 1986

The writer measured methemoglobin formation with solvent (n-hexane, ethylacetate and methanol) organic extracts from the sediments of the Wonju stream run through Wonju city on Octover 2nd, 1985. Hemoglobin was converted to methemoglobin with the n-hexane extract obtained from the sediment of the St. C and St. D was polluted industrial wastewater, but not with that from the St. B was polluted with the urban wastewater. The formation of methemoglobin was remarkable with the all solvent extracts from the sediment of the uper stream of the Wonju stream. Doses of the solvent extracts for 20% methemoglobin formation in the researched Wonju streams were as follows; 0.095～0.28 mg/m.$\ell$ in n-hexane extract. 0.85-1.3 mg/ m$\ell$ in methanol extract and 1.95～2.80 mg/m$\ell$ in ethylacetate extract.

• Journal of Veterinary Clinics
• /
• v.8 no.2
• /
• pp.127-142
• /
• 1991

This study was carried out to investigate fatty liver in Korean black goats. Adult female goats were divided into 3 test groups(A, B and C). Group A and B of goats each received 3 test consecutive daily doses of DL-ethionine at 75mg/kg and 150mg/kg body weight, respectively. Group C of goats was given 3 consecutive doses of the compound every 48 hours at 150mg/kg body weight. The clinical symptoms, hematological values, serum chemical values and histopathological study of the liver were investigated in the test animals. The results obtained are as follows ; 1. Fatty liver were observed in every test animal. 2. Some clinical symptoms( anorexia, depression) were appeared from 1st day to 7th day after administration of the compound in every test animal. In addition to these symptoms, diarrhea and salivation were generally observed in test animals which were given the compound at 150mg/kg body weight. The degree of these symptoms was dose dependent. 3. There was no significant variations in total WBC counts and fibrinogen values in the blood of test goats. The PCV values were significantly increased on 5th day of dosing in group A and B of goats. 4. The total lipid value was not changed but the concentration of NEFA was significantly increased on 3rd day of dosing with the compound and returned to normal value after 10 days hereafter. The value of triglycerides was significantly increased on 1st day and returned to normal value on 3rd day of dosing. The value of cholesterol was significantly decreased on 3rd day and returned to normal value on 10th day after treatment. 5. Total protein level was decreased on 10th day of dosing in the groups of B and C, and billirubin level was significantly increased on 7th day of dosing in every test group and returned to normal level after 13th day of administration. 6. The activity of GGT in serum was not changed while the activities of SDH and AST were significantly increased in every test goat and those values were returned to normal after 10~13th day of trestment. 7 The 35K-protein fraction in serum was not detected by SDS-polyacrylamide gel electrophoresis, but this protein fraction was detected by the same method after treating the 21st and 22nd fraction which were obtained by column chromatography with Sephadex G-100. 8. The affected liver was congested and swollen on 3rd day, and yellowish brown in color and mottled appearance on 7th day of treatment. Histopathologically, fat droplets were common in the hepatocytes, this change was intensive on 7th day after treatment in group B and C. Hepatic cell necrosis was observed in some livers but this pathological change was disappeared and returned to normal after 13 days of treatment.

• IMMUNE NETWORK
• /
• v.21 no.4
• /
• pp.29.1-29.9
• /
• 2021

There are limited data directly comparing humoral and T cell responses to the ChAdOx1 nCoV-19 and BNT162b2 vaccines. We compared Ab and T cell responses after first doses of ChAdOx1 nCoV-19 vs. BNT162b2 vaccines. We enrolled healthcare workers who received ChAdOx1 nCoV-19 or BNT162b2 vaccine in Seoul, Korea. Anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) S1 protein-specific IgG Abs (S1-IgG), neutralizing Abs (NT Abs), and SARS-CoV-2-specific T cell response were evaluated before vaccination and at 1-wk intervals for 3 wks after vaccination. A total of 76 persons, comprising 40 injected with the ChAdOx1 vaccine and 36 injected with the BNT162b2 vaccine, participated in this study. At 3 wks after vaccination, the mean levels (±SD) of S1-IgG and NT Abs in the BNT162b2 participants were significantly higher than in the ChAdOx1 participants (S1-IgG, 14.03±7.20 vs. 6.28±8.87, p<0.0001; NT Ab, 183.1±155.6 vs. 116.6±116.2, p=0.035), respectively. However, the mean values of the T cell responses in the 2 groups were comparable after 2 wks. The humoral immune response after the 1st dose of BNT162b2 developed faster and was stronger than after the 1st dose of ChAdOx1. However, the T cell responses to BNT162b2 and ChAdOx1 were similar.

• Radiation Oncology Journal
• /
• v.12 no.2
• /
• pp.191-199
• /
• 1994

Purpose : This study was undertaken to show the clinical results of combined radiotherapy and hyperthermia in primary hepatoma Materials and Methods : Between December 1989 and March 1993, 50 patients with hepatomas were treated by combined radiotherapy and hyperthermia. Among them, we analyzed retrospectively 33 patients who received the complete course of treatment. The ages of the patients ranged from 36 to 75(mean age: 55.5 years). Twenty-six patients ($78.8\%$) were men, and 7 ($21.2\%$ were women. According to Child's classification, nine patients ($27.3{\%}$) were A group, 9 ($27.3\%$) were B group, 15 ($45.4\%$) were C group. Radiation therapy was done by a 6 MV and 15 MV linear accelerator. Patients were treated with daily fractions of 150-180 cCy to doses of 2550 cGy -4950 cGy (median : 3000 cGy). Local hyperthermia was done by 8 MHZ RF capacitive heating device (Cancermia. Green Cross Co., Korea), 50-60 min/session, 1-2 sessions/wk, and 8.5 sessions (median number)/patient. We analyzed the prognostic factors including age, sex, tumor type, Child's classification, $\alpha$-fetoprotein, liver cirrhosis, ascites, portal vein invasion, esophageal varix, number of hyperthermia, chemotherapy, total bilirubin level, Karnofsky perfomance status. Results : The overall 1-year survival was $24.2\%$, with a mean survival of 10months. Of 33 patients, tumor regression (PR+MR) was seen in $30.4\%$, no response was seen in $52.2\%,\;17.4\%$ patient was progressed. In patients who had tumor regression, the overall 1-year survival was $42.1\%$ with a mean survival of 14 months. Factors influencing the survival were sex (p=0.05), tumor type (p=0.0248), Child's classification (p=0.0001), liver cirrhosis (p=0.0108), ascites (p=0.0009), and Karnofsky perfomance status (p=0.0028). Complications developed in 28 patients, including 18 hot pain,5 fat necrosis, 3 transient fever, 2 nausea and vomiting. Conclusion : In this study, the results suggests that combined radiotherauy and hyperthermia may improve the survival rate of hepatoma.

• Journal of the East Asian Society of Dietary Life
• /
• v.8 no.2
• /
• pp.116-125
• /
• 1998

This study was designed to find out the anti-cancer effects of two herbs using a folk remedy in Korea-The two herbs were A: Equisetum arvense L. (Seddugi), B: Eunymus alatus Siebold. (Hwasalnamoo) The experiment for the anti-cancer effects were conducted in mice and experimental groups were divided into normal(NO), standard (ST) and two other(A,B) groups for each herb and each of the two experimental groups consisted of three sub-groups(I, II, III) according to three different quantity doses of a folk remedy using five times and ten times the quantity of a commonly used in a folk remedy. The water soluble extracts of two herbs were orally administered to mice during six weeks followed by inoculation of the sarcoma-180 tumor cells into the peritoneal cavity. During experimental periods, the contents of ascites, abdominal organs were observed histopathologically. The results of effects on anticancer were as follows : 1. The survival time was significantly prolonged by the two herbs, especially in groups AII & BII.2. Body weight, circumference of the abdomen and contents of ascites at the time of sacrifice were noted and significantly decreased in groups AI, AII & BII. 3. Anti-cancer effects evaluated by the invasiveness and thickness of the tumor cells were noted in groups AIII & BII.

• Journal of the East Asian Society of Dietary Life
• /
• v.8 no.2
• /
• pp.93-106
• /
• 1998

This study was designed to find out the effects on the lipid metabolism of two herbs used in folk treatment in Korea The two herbs were A: Equisetum arvense L. (Seddugi), B: Eunymus alatus Siebold (Hwasalnamoo). The experiment was performed with the male rats of Sprague-Dawley which fed on high calorie and animal fat supplemented diets from which 30% of the total calories can from lard. Experimental groups were divided into standard (ST) and two other(A, B) groups for the each herb. Each of the two experimental groups consisted of three subgroups (I, II, III) according to the three different doses of the folk remedy used, which were five times and ten times the dose commonly used in a folk remedy. During the experimental period, total food intake and body weight gains were measured, and FER, CER, PER were calculated at the same times. Serum levels of triglyceride, total lipid, ttal cholesterol, HDL-cholesterol, and total lipid as well as cholesterol contents of the liver were measured at the time of sacrifice. Epididymal fat pads were weighted and an indes was calculated. The results of the effects on the lipid metabolism were as follows : 1.Total food intake and body weight gains increased in group A & B. 2. The serum levels of the total lipid and triglyceride decreased in AIII, BI and BIII.3. The serum level of cholesterol decreased in group B, while level of HDL-Cholesterol were increased in all groups and most effectively in group B. 4. The contents of total liver lipid increased in groups A&B. cholesterol decreased in groups A&B. In conclusion, effects on the lipid metabolism associated with the kinds of herbs a diet were the increase of body weighta and the decrease of total lipid and cholesterol levels in serum and liver.