• 한국식품영양과학회지
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• 제35권9호
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• pp.1166-1171
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• 2006

본 연구에서는 실크단백질 효소 가수분해물을 제 2형 당뇨병 모델인 C57BL/KsJ db/db mouse에 9주 동안 섭취시켜 혈당 변화를 관찰하였다. 실크단백질 효소 가수분해물의 펩타이드의 평균 분자량은 1357.11 Da이었으며, 2,000 Da 미만의 펩타이드가 87.52%이었다. 총 유리아미노산은 실크단백질 효소 가수분해물 100 g 당 14.80 g이었으며, proline, threonine, arginine, alanine 순으로 많았다. 실크단백질 효소 가수분해물 섭취군은 대조군에 비하여 체중감소가 유의적으로 낮았으며, 실크단백질 효소 가수분해물 농도에 비례하여 체중감소가 낮은 경향을 보였다. 식이 섭취량은 당뇨 대조군이 가장 높게 나타났으며, 실크단백질 효소 가수분해물 0.5% 섭취군의 섭취량이 가장 낮게 나타나 유의적인 차이를 보였다. 음수 섭취량은 식이 섭취량과 유사한 경향을 나타내었으며, 실크단백질 효소 가수분해물 섭취군은 당뇨대조군에 비해 전반적으로 낮은 섭취량을 보였다. 간장과 신장 무게(g/100 g body weight)는 당뇨 대조군과 실크단백질 효소 가수분해물 간에 유의적인 차이가 없었다. 신장의 무게는 실크단백질 효소 가수분해물 농도에 비례하여 감소하였으나 유의적인 차이는 없었다. 혈당은 실크 단백질 효소 가수분해물 섭취군이 대조군에 비하여 유의적으로 낮게 나타났으며, 내당능은 당뇨 대조군이 측정 기간 동안 높은 혈당을 유지하였으나, 반면에, 실크단백질 효소 가수분해물 섭취군의 경우 포도당 부하 후 60분 후부터 혈당의 감소가 나타나 180분 후 초기 혈당 수준으로 회복되었다. 실크단백질 가수분해물의 섭취는 혈당상승을 억제하는 효과가 있는 것으로 사료되며 혈당상승에 대한 억제 기전과 당뇨의 개선효과를 뒷받침 할 수 있는 향후 연구가 필요하다고 사료된다.

• Biomolecules & Therapeutics
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• 제5권3호
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• pp.253-259
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• 1997

The effect of corticosteroid on the diabetic pregnant rats and their fetuses was investigated. Streptozotocin (STB) was injected into the pregnant rats on the fifth day of pregnancy. Dexamethasone (DXM) was injected into the pregnant rats on the 17th, 18th, 19th and 20th days of pregnancy In prenatal rats, the body weight, an abortion rate, number of fetus, the ratio of lecithin/sphingomyelin (L/S) and the levels of blood glucose and phosphatidylglycerol (PG) were determined. In the postnatal rats, the body weight, the levels of blood glucose, fetal number, stillbirth rate, an organ weight and the levels of hepatic glycogen, protein and triglyceride were determined. The body weight of fetuses was lower in the DXM group and higher in the STZ group than the those of control group. Blood glucose of fetuses produced hypoglycemia in the STZ group compared with the control group. A significant increase in the abortion and stillbirth rates was observed in STZ group. The levels of glycogen, protein and triglyceride in fetus liver and the weight of pancreas were significantly increased in the 572 and STZ+DXM groups compared with the control group. The L/S ratio and the level of PG in the amniotic (quid were significantly decreased in STZ group compared with the control group, whereas those of the STZ+DXM group were similar to the control group. It has been observed that corticosteroid administration on the STZ-induced diabetic rats during final stage of pregnancy can prevent the respiratory depression syndrome of neonatal rats.

• Asian-Australasian Journal of Animal Sciences
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• 제27권1호
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• pp.83-92
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• 2014

This experiment was conducted to evaluate the effects of dietary CP levels in gestation under equal lysine content on reproductive performance, blood metabolites and milk composition of gilts. A total of 25 gilts ($F_1$, Yorkshire${\times}$Landrace) were allotted to 4 dietary treatments at breeding in a completely randomized design, and fed 1 of 4 experimental diets containing different CP levels (11%, 13%, 15%, or 17%) at 2.0 kg/d throughout the gestation. Body weight of gilts at 24 h postpartum tended to increase linearly (p = 0.09) as dietary CP level increased. In lactation, backfat thickness, ADFI, litter size and weaning to estrus interval (WEI) did not differ among dietary treatments. There were linear increases in litter and piglet weight at 21 d of lactation (p<0.05) and weight gain of litter (p<0.01) and piglet (p<0.05) throughout the lactation as dietary CP level increased. Plasma urea nitrogen levels of gilts in gestation and at 24 h postpartum were linearly elevated as dietary CP level increased (p<0.05). Free fatty acid (FFA) levels in plasma of gestating gilts increased as dietary CP level increased up to 15%, and then decreased with quadratic effects (15 d, p<0.01; 90 d, p<0.05), and a quadratic trend (70 d, p = 0.06). There were no differences in plasma FFA, glucose levels and milk composition in lactation. These results indicate that increasing dietary CP level under equal lysine content in gestation increases BW of gilts and litter performance but does not affect litter size and milk composition. Feeding over 13% CP diet for gestating gilts could be recommended to improve litter growth.

• 한국동물학회지
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• 제14권3호
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• pp.119-124
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• 1971

1. $^{60}Co$의 $\gamma$선 128 rad로 마우스를 전신조사시킨 바 대조군과 cortisone투여군에서 총 혈청단백량은 1일구에서 A/G비는 5일구에서 각각 증가의 정점을 나타냈고 이후 정상치로 되돌아가는 경향을 나타냈다. 2. cortisone acetate는 전신조사후 총혈청단백량에 있어서 5, 10 및 20일구에서 증가의 지체성을 나타냈다. 3. cortisone acetate를 전신조사후 A/G비에 있어서 1, 5 및 10일구에서 증가의 지체성을 나타냈다. 4. 이상의 결과로 미루어 보아 전신조사전 cortisone 처리는 혈청단백질의 방사선 감수성을 감소시킴을 알수 있으므로 방사선 방어효과가 있다고 사료된다.

• Journal of Community Nutrition
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• 제3권2호
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• pp.96-102
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• 2001

A cross-sectional study was performed to estimate the nutritional status of Korean male lead workers and to assess the relationship between calcium nutritional status and blood lead levels. A flood consumption survey was conducted by the 24-hr recall method with 118 lead workers and 63 non-lead exposed controls. Blood lead levels were analyzed from whole blood and serum calcium concentrations were also assessed. Results of dietary analysis showed Korean lead workers consumed relatively sufficient nutrients (more than 75% of RDA) except, calcium. Mean dietary calcium intake of lead workers was 502.2mg(72% of RDA) while that of the non-lead workers was estimated as 600.8mg(86% of RDA). Intakes of protein, iron, niacin and vitamin C of lead workers were significantly lower than those of non-lead workers. There was a wide range of blood lead levels(5.5 to 73.5$\mu\textrm{g}$/㎗) observed while mean blood lead level of lead workers was 30.9$\mu\textrm{g}$/㎗. However, 98% of lead workers showed normal serum ca1cium concentrations (range ; 8.9 to 10.7mg/㎗, mean ; 9.77mg/㎗) while 66% of lead workers were estimated to intake a dietary calcium lower than 75% of RDA. Mean blood lead levels of non-1ead workers were significantly lower(mean ; 5.1$\mu\textrm{g}$/㎗, p ＜ 0.001) and the serum calcium concentration was significantly higher(mean ; 10.20mg/㎗, p ＜ 0.001) than lead workers. Results of unadjusted correlation showed that serum calcium level and dietary calcium intake were negatively correlated with blood lead concentration. In a multiple regression of blood lead levels with variables known as affecting blood lead 1eve1 such as age, body mass index and occupational lead exposure, serum calcium was insignificant while dietary calcium intake showed statistically significant(p ＜ 0.05) relation. Since calcium is a very important nutrient to reduce hazardous effects of lead, it should be strongly recommended that lead workers need to increase dietary calcium intake.

• The Korean Journal of Physiology and Pharmacology
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• 제6권1호
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• pp.57-61
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• 2002

The renoprotective activities of white ginseng radix and rootlet were compared in spontaneously hypertensive rat (SHR) with diabetes. During oral administration of white ginseng radix (Ginseng Radix Alba, GRA) and white ginseng rootlet (Ginseng Radix Palva, GRP) for four weeks, arterial blood pressure and blood glucose levels were determined at every 10 days. In both GRA- and GRP-treatment groups, arterial blood pressures started to go down after 10 days of administration and maintained throughout the study period. After four weeks administrations of GRA and GRP, diastolic blood pressures were significantly decreased with 17% and 9%, respectively. GRA treatment also decreased blood glucose levels after 10 days of administration when compared with diabetic SHR group. At the end of the experiment, serum creatinine (Scr) and blood urea nitrogen (BUN) were not significantly different between the groups, except 62% higher value of BUN in diabetic SHR group when compared with SHR group. In the diabetic SHR group, the excretion of urinary albumin was increased significantly when compared with SHR. The level of urinary albumin in GRA treated group was markedly reduced when compared with diabetic SHR group $(67.8{\pm}4.7\;vs.\;131.3{\pm}13.5\;mg/24\;h).$ To examine the effects of ginseng radices on an overt diabetic nephropathy, index of kidney hypertrophy and transforming growth $factor-{\beta}1\;(TGF-{\beta}1)$ protein levels were evaluated. The glomerular and tubular cells stained positive for $TGF-{\beta}1$ seemed to be more abundant in diabetic SHR than in those with SHR, and GRA treated rats showed somewhat less $TGF-{\beta}1$ protein in glomerular and tubular cells when compared with diabetic SHR. Our results suggest that GRA might be a useful antihypertensive and antidiabetic agent with renoprotective effect.

• Asian-Australasian Journal of Animal Sciences
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• 제19권11호
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• pp.1588-1596
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• 2006

An experiment was conducted to study the effect of different dietary protein levels on the performance, nutrient balances, blood biochemical parameters and thyroid hormones of crossbred calves. Thirty crossbred (Bos taurus${\times}$Bos indicus) calves aged 3-5 months were divided into 3 equal groups of 10 each and fed graded levels of crude protein, namely 100 (NP), 75 (LP) and 125 (HP) percent of the Kearl recommendations for 105 d. The calves had access to ad libitum oat hay as the basal roughage. A metabolism trial of 6 d duration was conducted at 90 d of the study. Blood collection and its analysis for various hematological and biochemical parameters as well as thyroid hormones was done both during the pre- and post-experimental periods. The fortnightly body weight changes and the net gain did not differ significantly due to dietary variation. The average daily gain was $367{\pm}21.6$, $347{\pm}22.9$ and $337{\pm}26.4g$ in calves fed NP, LP and HP diets, respectively. Averaged across the feeding trial, oat hay intake was higher (p<0.05) in NP animals than HP or LP fed groups. The dry matter (DM) intake showed no significant difference between the 3 groups but the DM digestibility was higher (p<0.05) in the HP fed animals. The digestibility of crude protein, organic matter, crude fiber and nitrogen-free extract was significantly higher (p<0.05) on HP diets compared to LP or NP diets. The calves on all 3 diets were in positive nitrogen (N) balance, however the N retention was higher (p<0.05) in HP than in LP fed calves. The intake and retention of calcium and phosphorus were similar between the treatments. The blood biochemical profile revealed no significant influence of the dietary treatments on hemoglobin, packed cell volume as well as serum levels of glucose, total protein, albumin, globulin, Ca, P, and alkaline phosphatase. Serum levels of the circulating thyroid hormones ($T_3$ and $T_4$) tended to be lower (p>0.05) on feeding of the LP diet besides showing an increasing trend with the advancement of age. Considering the similar performance and metabolic profile, it could be concluded that crossbred calves can be satisfactorily reared on 25% lower protein level as recommended by Kearl for developing countries, which would not only economize the cost of production but also help to reduce environmental pollution attributable to livestock production.

• 한국수정란이식학회지
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• 제27권2호
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• pp.93-100
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• 2012

To investigate the biochemical nature of changes in vaginal physiology during estrus and pregnancy, we examined the cytology and viscosity, and monitored the protein expression profile in vaginal mucus during estrus and pregnancy. The viscosity progressively decreased from estrus to pregnancy. Cell type analysis revealed that white blood cells progressively increased from estrus to pregnancy, while red blood cells progressively decreased during pregnancy. The cornification index (CI) was higher in estrus than in pregnancy. Protein mass spectrumetry identified the presence of ribosome-binding protein 1, GRIP 1 (Glutamate receptor-interacting protein 1)-associated protein 1, DUF729 (Domain of unknown function729) domain-containing protein 1, prolactin precursor, dihydrofolatereductase, and MMP (Matrix metalloprotease)-9 in vaginal mucus. MMP-2 and MMP-9 proteins in the vaginal mucus were active throughout estrus and gestation, as measured by a gelatinase assay, but most abundant in the vaginal mucus on day 0 of estrus. Results from ELISA of MMP-2 and MMP-9 were in accordance with the gelatinase assay. In light of the crucial role of metalloproteinases in extracellular matrix remodeling, the level of MMP-9 in vaginal mucus might be useful as an indicator of estrus and pregnancy to increase the efficiency of reproduction.

• 한국임상수의학회지
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• 제6권1호
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• pp.209-216
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• 1989

In order to investigate sedative action of detomidine and its effect on physical signs, hematological and blood chemical components, 15 Holstein cattle were used. The dosage of detomidine was 25 ${\mu}$g/kg and 50 ${\mu}$g/kg. Blood was collected before injection, 30, 60 and 120 min. after injection. Induction time of sedation in a cattle given with 25 ${\mu}$g/kg and 50 ${\mu}$g/kg of detomidine was 10.6${\pm}$2.8. 7.6${\pm}$1.0min. respectively and maintenance time was 70.4${\pm}$8.3, 86.5${\pm}$9.9, respectively. After injection of detomidine, body temperature was slightly increased, heart rate and respiratory rate were slightly decreased. The levels of red blood cell, hemoglobin, packed cell volume and white blood cell were not changed by detomidine. Blood glucose level following detomidine was markedly increased but total protein, serum glutamic oxaloacetic transminase, alkaline phosphatase, lactic dehydrogenase, blood urea nitrogen and creatinine were not changed. This results indicated that detomidine was useful sedative in bovine practice.

• Korean Journal of Acupuncture
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• 제27권2호
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• pp.25-34
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• 2010

Objectives : To investigate the effects of Cornu cervi parvum pharmacopuncture with regard to the blood picture and antioxidative activity in rats. Methods : Sprague-Dawley rats were divided into 3 groups (n=5 each) and were treated with Cornu cervi parvum pharmacopuncture every other day for 2 weeks. The groups are classified as follows; normal control without treatment (control group), Cornu cervi parvum pharmacopuncture at CV4 (CV4 group), and Cornu cervi parvum pharmacopuncture at BL23 (BL23 group). Thereafter, the blood and liver samples were obtained for blood analysis and superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activity measurement. Results : Cornu cervi parvum pharmacopuncture groups showed higher values of red blood cell count and plasma cell volume compared with those of the control (p<0.05). However, hemoglobin level showed no significant differences among groups. With regard to the blood picture, plasma concentration in total protein and albumin showed no significant differences in pharmacopuncture groups, while higher ratio of albumin/globulin was observed in CV4 group. White blood cell counts and its composition showed no significant differences among groups. Pharmacopuncture groups showed higher values in SOD, CAT, and GSH-Px activities compared with those of control group. Conclusions : Cornu cervi parvum pharmacopuncture alleviates oxidative activities in rats.