• Asian-Australasian Journal of Animal Sciences
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• 제26권4호
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• pp.488-500
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• 2013

The objective of this study was to compare the effectiveness of the protocols for superstimulation of follicular growth in Thai native heifers. Heifers (n = 20) were randomly divided into four groups of five heifers/group. Heifers were given a single dose by i.m. administration of 100 mg Follicle Stimulating Hormone dissolved in polyvinylpyrrolidone (FSHp) at 24 h. Ovum pick up (OPU) occurred at 72 h ($F_{24}O_{72}$ protocol; Group 1) or 96 h ($F_{24}O_{96}$ protocol; Group 2), and at 36 h and OPU at 72 h ($F_{36}O_{72}$ protocol; Group 3) or 96 h ($F_{36}O_{96}$ protocol; Group 4) after follicular ablation. The dynamics of ovarian follicular growth were monitored by twice-daily ultrasonographic examinations. Blood sample collections were performed every 12 h after initiation of treatment for assessment of FSH, E2 and P4 profiles. All heifers were subjected to eight repeated sequential sessions of OPU. The follicular deviation commenced $24{\pm}5.32$ h after follicular ablation in all groups. The circulatory FSH surged quickly from 24 to 36 h (>0.8 ng/ml) after follicular ablation and circulatory estrogen levels steadily increased from 36 h until OPU in all groups. At the end of the OPU sessions, the mean number of aspirated follicles/heifer/session in $F_{36}O_{72}$ protocol (Group 3) and $F_{36}O_{96}$ protocol (Group 4) were higher than in the two other groups (p<0.05). The number of cumulus-oocyte complexes (COCs), cleaved and day 8 blastocysts rates in the $F_{36}O_{72}$ protocol (Group 3) were higher than in the other groups (p<0.05). It can be concluded that a single dose i.m. administration of 100 mg FSHp at 36 h and OPU at 72 h after follicular ablation ($F_{36}O_{72}$ protocol; Group 3) was the most effective protocol for superstimulation of follicular growth for repeated OPU and subsequent in vitro embryo production in Thai native heifers.

• 한방재활의학과학회지
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• 제23권3호
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• pp.45-53
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• 2013

Objectives The objective of present study was to investigate the effect of Ojeoksangamibang ($W\check{u}j\bar{i}s\check{a}nji\bar{a}w\grave{e}if\bar{a}ng$) extract on recovery of liver function in carbontetrachloride ($CCl_4$)-exposed rat. Methods Male rats weighing $230{\pm}7.21g$ fed experimental diet for 1 week and 28 rats were divided into 4 groups. Each of 7 rats was devided into a control group and experimental groups. We fed a control group of rats a basal diet and administered normal saline (100 mg/kg, 1 time/1 day) for 3 weeks. And we fed each experimental group of rats basal diet and administered an extract of Ojeoksangamibang extracts (100 mg/kg, 200 mg/kg, 300 mg/kg, 1 time/1 day) for 3 weeks. We measured lipid of plasma and liver, concentration of proinflammatory cytokines ($IL-1{\beta}$, IL-6 and IL-10). Statistical analysis was done by one-way analysis of variance (ANOVA) and Duncan's multiple range test with significance level at p<0.05. Results Plasma a-fetoprotein (AFP) and total protein concentration showed a tendency to decrease in Ojeoksangamibang extract-treated groups. However, plasma albumin concentration showed no significant differences in all treatment groups. Activity of plasma Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) in the Ojeoksangamibang extract-treated groups, increased addition amount of Ojeoksangamibang extracts tended to decline. Alkaline phosphatase (ALP), lactate dehydrogenase (LDH) and ${\gamma}$-glutamyl transferase (${\gamma}$-GT) activities showed a tendency to decrease in Ojeoksangamibang extract-treated groups, increased addition amount of Ojeoksangamibang extracts tended to decline. Concentration of plasma triglyceride and total cholesterol showed a lower value than that of control group. The liver $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ concentration were decreased, and IL-10 was increased in Ojeoksangamibang extract groups, compared to control group. Plasma $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ concentration were decreased, and IL-10 was increased in Ojeoksangamibang extract groups, compared to control group. Conclusions This study suggested that Ojeoksangamibang may alleviate liver inflammatory reaction induced by liver toxicity.

• 미생물학회지
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• 제35권3호
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• pp.218-225
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• 1999

Aspergillus nidulans 의 DNA 로부터 Saccharomyces cerevisiae에서 스스로 복제가능하고, 형질전환율도 삽입벡터에 비해 10\sup 4\ 배정도 높여주는 절편을 분리한 바 있다. A. nidulans에서 ANRI 의 일부를 포함한 pILJ16-4.5는 삽입벡터인 pILJ16보다 170배 정도 높은 형질전환 효율을 보였으며, S.cerevisiae와 마찬가지로 plasmid 상태로 회수가능했다. A.nidulans 페소내에서 2-3 copy 정도로 염색체와는 별개로 존재하는 것으로 나타났으며, 재형질전환능력도 있었다. ANRI은 미토콘드리아의 DNA에서 유래한 절편으로 밝고, ARS 공통절편과 유사한 절편도 11곳에 존재한다. $\Phi$X174와 SV40 DNA에서 gyrase 가 결합하는 부위의 공통편인 YRTGNYNNY도 6곳에 존재하며, ColE1에서 gyrase가 결합하는 b site와 일치하는 절편도 하나 포함하고 있으며, ABF1 결합 부위이 공통절편과 유사한 절푠$TCN_7ACG$ 도 하나 포함하고 있다. 이를 토대로 ANRI은 A.nidulans의 형질전환 후 회수가 가능한 replicating vector 개발에 이용할 수 있다.

• 대한한의학방제학회지
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• 제16권2호
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• pp.115-131
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• 2008

실험목적 : 빈소산은 11가지 생약으로 구성된 복합 한약 처방으로 관절염을 포함한 다양한 염증성 질환의 치료제로 사용되어 왔으나, 관절염에 대한 직접적인 효력평가는 찾아 보기 힘들다. 따라서 본 실험에서는 빈소산 추출물이 Freund's complete adjuvant (FCA)로 유발된 rat 류마티스성 관절염에 미치는 치료 효과를 dexamethasone (15mg/kg, 복강 투여) 의 효과와 비교 평가하였다. 실험방법 : 류마티스성 관절염은 FCA (10mg in 1ml paraffin oil 0.1ml/rats)를 좌측 후지에 피내 투여하여 유발하였다. 실험동물은 Wistar 랫트를 사용하였고, FCA 투여 14일 후 유사한 무릎관절 둘레를 나타내는 류마티스성 관절염 유발 rat와 정상 rat 및 실험군을 그룹당 9마리씩 나누었다. 실험동물은 100 또는 200mg/kg의 빈소산 추출물을 FCA 투여 14일 후부터 14일간 경구 투여하였으며, dexamethasone은 15mg/kg 농도로 복강 투여한 다음, 희생하여, 체중, 연골내 collagen 함량 및 chondroitin sulphate, heparin sulphate 및 hyaluronic acid와 같은 뼈내 glycosaminoglycan 함량의 변화를 각각 관찰하였다. 실험결과는 항염 효과가 이미 입증되어 있는 dexamethasone 15mg/kg 복강 투여군과 비교하였다. 결과 : FCA 투여는 현저한 체중, 연골내 collagen 함량 및 chondroitin sulphate, heparin sulphate 및 hyaluronic acid와 같은 뼈내 glycosaminoglycan 함량의 감소와 함께 유발 관절 둘레 및 조직내 prostaglandin $E_2$의 증가와 같은 전형적인 류마티스성 염증을 초래하였으나, 이러한 류마티스성 관절염 소견은 dexamethasone 및 모든 용량의 빈소산 추출물 투여에 의해 현저히 억제되었으며, 특히 빈소산 투여군에서는 투여 용량 의존적인 감소가 인정되었다. 결론 : 이상에서 빈소산 추출물은 투여 용량 의존적인 prostaglandin $E_2$ 억제를 매개하여 FCA 유발 류마티스성 관절염에 대한 치료 효과를 나타내는 것으로 관찰되었다. 따라서 새로운 관절염에 대한 치료제로서 개발 가능성이 있을 것으로 판단된다. 한편 빈소산 추출물은 주로 prostaglandin $E_2$ 억제작용에 의해 항염 효과를 나타내는 것으로 관찰되었으나, 금후 다른 작용기전에 대한 연구와 빈소산의 구성성분 중 유효 성분 규명을 위한 실험이 수행되어야 할 것으로 판단된다.

• The Korean Journal of Physiology and Pharmacology
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• 제22권4호
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• pp.409-417
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• 2018

Pre-eclampsia (PE) is a pregnancy disorder that is characterised by severe hypertension and increased risks of foetal and maternal mortality. The aetiology of PE not completely understood; however, maternal nutrition and oxidative stress play important roles in the development of hypertension. The treatment options for PE are currently limited to anti-hypertensive drugs. Punicalagin, a polyphenol present in pomegranate juice, has a range of bioactive properties. The effects of supplementation with punicalagin on angiogenesis and oxidative stress in pregnant rats with induced hypertension were investigated. The pregnant rats were randomly divided into five experimental groups (n=12 per group). Hypertension was induced using an oral dose of NG-nitro-L-arginine methyl ester (L-NAME, 50 mg/kg/day) on days 14-19 of pregnancy. Punicalagin (25, 50 or 100 mg/kg) was given orally on days 14-21 of pregnancy. Punicalagin treatment at the tested doses significantly reduced diastolic, systolic, and mean arterial blood pressure in L-NAME treated rats from day 14. Punicalagin also restored angiogenic balance by increasing the expression of vascular endothelial growth factor and downregulating vascular endothelial growth factor receptor-1/fms-like tyrosine kinase-1. Punicalagin, significantly increased the placental nitric oxide levels as compared to PE group. The increased levels of oxidative stress in rats with PE were markedly decreased by treatment with punicalagin. Punicalagin at the tested doses markedly (p<0.05) enhanced the placental antioxidant capacity in L-NAME-treated rats. The raised catalase activity observed following L-NAME induction was significantly (p<0.05) and restored to normal activity levels in punicalagin treatment. Further, 100 mg dose of punicalagin exhibited higher protective effects as compared to lower doses of 25 and 50 mg. This study shows that supplementation with punicalagin decreased blood pressure and oxidative stress and restored angiogenic balance in pregnant rats with induced PE.

• 한국수정란이식학회지
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• 제13권3호
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• pp.235-243
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• 1998

적정 배양액의 선정, ITS의 첨가와 BSA의 농도조절 및 NaCl 농도의 조절을 통해 소 수정란의 무혈청, 체세포배제 배양체계를 확립하기 위하여 수행한 실험에서 다음과 같은 결론을 얻었다. 1. 배양액으로 CRlaa, TALP 및 SOF를 사용하여 발육률을 검토한 결과, 발육률의 유의적인 차이는 나타나지 않았다. 2. 배양액내의 고분자물질원으로 BSA, FBS 및 PVA를 첨가하여 사용한 결과 BSA 및 FBS 첨가군이 PVA 첨가군보다 유의적으로 높은 발육률을 나타내었다(p〈0.01). 3. 배양액내의 BSA 농도를 달리 하면서(1, 3, 8 mg/ml) 1% ITS를 첨가하여 실험한 결과 BSA의 농도가 증가할수록 후기배로의 발육률이 높았으며 모든 군에서 ITS 첨가군이 후기배로의 발육률이 높았으나 BSA가 1 mg/ml로 첨가된 군에서만 ITS 첨가에 따른 유의적인 차이가 인정되었다(p〈0.05). 4. 배양액내의 N3Cl 농도를 114 mM과 90 mM 로 나누어 소 수정란을 배양한 결과 90 mM 군의 후기배로의 발육률이 114 mM 군에 비해 유의적으로 높게 나타났다(p〈0.05).

• Biomolecules & Therapeutics
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• 제9권4호
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• pp.291-297
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• 2001

The bioequivalence of two triflusal products was evaluated with 20 healthy volunteers following single oral dose according to the guidelines of Korea Food and Drug Administration (KFDA). Trisa $l^{R}$ capsule (Whanin Pharm. Corp., Korea) and Disgre $n^{R}$ capsule (Myung-In Pharm. Corp., Korea) were used as test product and reference product, respectively. Both products contain 300 mg of trifusal. One capsule of test product or reference product was orally administered to the volunteers, respectively, by randomized two period crossover study (2$\times$2 Latin square method). Blood samples were taken at predetermined time intervals for 4 hours and the determination of trifusal was accomplished using semi-microbore HPLC equipped with automated column switching system. The analytical method with HPLC was validated according to the Bioanalytic Method Validation guideline by F7A prior to determining the plasma samples. The pharmacokinetic parameters (AU $C_{0-4h}$ $C_{max}$ and $T_{max}$) were calculated and ANOVA test was utilized for statistical analysis of parameters. As a result of the assay validation, the limit of quantification of trifusal in human plasma by current assay procedure was 50 ng/ml using 500 $\mu$l of plasma. The accuracy of the assay was from 97.76% to 116.51% while the intra-day and inter-day coefficient of variation of the same concentration range was less than 15%. Average drug concentration at the designated time intervals and pharmacokinetic parameters calculated were not significantly different between two products (p>0.05). The difference of mean AU $C_{olongrightarrow4hr}$, $C_{max}$, and $T_{max}$ between the two products (2.92, 4.39, and -2.44%, respectively) were less than 20%. The power (1-$\beta$) and treatment difference ($\Delta$) for AU $C_{olongrightarrow4hr}$ and $C_{max}$ were more than 0.8 and less than 0.2, respectively. Although the power for $T_{max}$ was under 0.8, $T_{max}$ of the two products was not significantly different from each other (p>0.05). These results satisfied the criteria of KFDA guideline for bioequivalence, indicating the two products of triflusal were bioequivalent.quivalent.ent.ent.

• Journal of Animal Science and Technology
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• 제51권6호
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• pp.459-470
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• 2009

The aim of this study was to analyze the proteome of proliferating bovine satellite cells from longissimus dorsi, deep pectoral and semitendinosus muscle depots which had been subjected to hormonal deprivation or addition in culture. For hormone deprivation or addition studies, the cells were either grown in 10% charcoal-dextran stripped fetal bovine serum (CD-FBS) or in 10% FBS supplemented medium. Further to analyze the effect of insulin like growth factor (IGF-1) and testosterone (TS), the cells were grown in 10% CD-FBS containing IGF-1 (10 ng/ml) or TS (10 nM). Results have shown that hormone deprivation had a negative impact on proliferation of the cells from each of the muscle depots. In case of IGF-1 and TS addition, the proliferation levels were low compared with that of the cells grown in 10% FBS. Hence, to gain the insights of the proteins that are involved in such divergent levels of proliferation, the proteome of such satellite cells proliferating under the above mentioned conditions were analyzed using 2D-DIGE and MALDI-ToF/ToF. Thirteen proteins during hormone deprivation and nine proteins from hormone addition were found to be differentially expressed in all the cultures of the cells from the three depots. Moreover, the results highlighted in this study offer a role for each differentially expressed protein with respect to its effect on positive or negative regulation of cell proliferation.

• Journal of Animal Science and Technology
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• 제52권3호
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• pp.175-186
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• 2010

The aim of this study was to analyze the proteome expressions of proliferating stromal vascular cells from Hanwoo omental, subcutaneous and intramuscular depots subjected to hormone deprivation and IGF-1, Estradiol-$17{\beta}$ addition. For hormone deprivation or addition studies, the cells were either grown in 10% charcoal-dextran stripped fetal bovine serum (CD-FBS) or in 10% FBS supplemented medium. Further, to analyze the effect of insulin like growth factor (IGF-1) and $17\beta$-Estradiol (E2), cells were grown in 10% CD-FBS containing IGF-1 (10 ng/ml) or E2 (10 nM). The results showed that hormone deprivation had a negative impact on proliferation among the cells from all depots without any growth difference. On comparison of proliferation levels, higher levels were observed in cells that were grown in 10% FBS than in 10% CD-FBS alone or with IGF-1/E2. Proteome expression from preadipocytes grown in hormone deprivation conditions were compared by 2D-DIGE and MALDIToF/ToF. A total of twelve different proteins were found to be differentially expressed under hormone deprivation conditions. Further, our proteomic analysis with DIGE under IGF-1 and E2 addition revealed four proteins with differential expression levels. Moreover, the results highlighted in this study offer a role for each differentially expressed protein with respect to their effect in positive or negative regulation on proliferation.

• 대한수의학회지
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• 제46권1호
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• pp.7-12
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• 2006

We have studied pharmacokinetics of a new anti-human immunodeficiency virus (HIV) agent VP-0501 and its amino acid prodrug VP-0501AL which is designed to improve oral bioavailability. After oral administration at 100 mg/kg dose in rats (n = 4), VP-0501 was not detectable in plasma (<50 ng/ml), while after the administration of VP-0501AL, VP-0501 was quantitatively detected, at least for 8 hrs, with Cmax of ca. $2.5{\mu}g/ml$ and AUC of $8hr^{\ast}{\mu}g/ml$. When VP-0501 was intravenously administered at 50mg/kg, this compound appeared at a marginal level in plasma with AUC of $2hr^{\ast}{\mu}g/ml$, $t_{1/2}$ of 2 hr, $C_0$ of $0.7{\mu}g/ml$, and MRT of 3 hr. On the other hand, with intravenous VP-0501AL at the same dose, both the prodrug VP-0501AL and its metabolite VP-0501 appeared comparatively at higher level in the plasma: pharmacokinetic parameters of VP-0501AL including $Vd_{\beta}$, AUC, $t_{1/2,{\beta}}$, $C_0$, $CL_{tot}$, and MRT were ca. 2 L/kg, $70hr^{\ast}{\mu}g/ml$, 2 hr, $180{\mu}g/ml$, 0.7 L/hr/kg, and 1 hr, respectively. These results demonstrate that attachment of amino acid alanine to VP-0501 is an effective approach for improvement of its oral bioavailability. Therefore, VP-0501AL is expected to become a new highly bioavailable and potent anti-AIDS drug candidate/lead compound.