• 한국식품영양과학회지
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• 제33권1호
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• pp.66-71
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• 2004

선행연구에서 배의 과피에서 추출한 phenolic compound(PC)의 항당뇨 효능이 입증되었기에, 본 연구에서는 생지황 추출물과 배의 과피에서 추출한 PC가 streptozotocin(STZ)로 유발된 고혈당 생쥐에 미치는 영향을 규명하고자 하였다. 0.2 mL의 생지황 추출물을 사료에 혼합하여 공급한 실험군(S군), 0.2 mL 생지황과 PC(90 mg/kg/day)를 혼합하여 공급한 실험군(SPC군) 및 사료만 공급한 대조군으로 구분하여 6주 동안 실시하였다. 체중 계측은 매주 1회, 혈당검사는 꼬리정맥 혈을 취하여 매주 1회씩, 당내성 검사는 실험이 완료되기 24시간 전에 각각 실시하였다. 6주 후 BUN과 creatinine을 검사하기 위하여 심장채혈을 하였으며, 관류고정 후 췌장을 적출하여 $\beta$-세포에 대한 insulin-면역조직화학적 검사를 실시하였다. 체중은 S군이 가장 높았으며, 대조군에 비하여 약 2 g 정도 많았다. 혈당은 S군과 SPC군에서 대조군에 비하여 유의성있게 (p<0.05) 감소하였으며, BUN과 creatinine농도는 SPC군에서 대조군에 비하여 유의성있게 (p<0.05) 감소하였다. 당내성 검사결과 S군과 SPC군은 대조군에 비하여 개선된 결과를 보여주었다. 랑겔한스섬의 $\beta$-세포에 대한 insulin-면역조직 화학적 검사 결과 insulin 양성 반응을 보이는 랑겔한스섬들의 수가 S군(p< 0.01)과 SPC군(p<0.05)에서 대조군에 비하여 유의성있게 증가하였으며, 면역반응성은 SPC군에서 가장 높게 나타났다. 이상의 결과로 보아 생지황의 추출물과 배의 과피에서 추출한 PC가 STZ로 유발된 고혈당 생쥐에서 항당뇨 효능이 있다고 사료되며, SPC군이 S군에 비하여 신장의 기능이 보다 양호하게 나타나는 것으로 보아 배의 과피에서 추출한 PC가 당뇨병신증으로부터 보호하는 작용이 있는 것으로 사료되나 기전에 대해서 앞으로 연구가 필요하다고 생각된다.

• Parasites, Hosts and Diseases
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• 제54권6호
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• pp.725-732
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• 2016

Plasmodium vivax produces numerous caveola-vesicle complex (CVC) structures beneath the membrane of infected erythrocytes. Recently, a member helical interspersed subtelomeric (PHIST) superfamily protein, $PcyPHIST/CVC-81_{95}$, was identified as CVCs-associated protein in Plasmodium cynomolgi and essential for survival of this parasite. Very little information has been documented to date about $PHIST/CVC-81_{95}$ protein in P. vivax. In this study, the recombinant $PvPHIST/CVC-81_{95}$ N and C termini were expressed, and immunoreactivity was assessed using confirmed vivax malaria patients sera by protein microarray. The subcellular localization of $PvPHIST/CVC-81_{95}$ N and C termini in blood stage parasites was also determined. The antigenicity of recombinant $PvPHIST/CVC-81_{95}$ N and C terminal proteins were analyzed by using serum samples from the Republic of Korea. The results showed that immunoreactivities to these proteins had 61% and 43% sensitivity and 96.9% and 93.8% specificity, respectively. The N terminal of $PvPHIST/CVC-81_{95}$ which contains transmembrane domain and export motif (PEXEL; RxLxE/Q/D) produced CVCs location throughout the erythrocytic-stage parasites. However, no fluorescence was detected with antibodies against C terminal fragment of $PvPHIST/CVC-81_{95}$. These results suggest that the $PvPHIST/CVC-81_{95}$ is localized on the CVCs and may be immunogenic in natural infection of P. vivax.

• Journal of Yeungnam Medical Science
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• 제16권2호
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• pp.326-332
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• 1999

이 연구에서는 유기인제 농약으로 인한 acetylcholinesterase와 pseudolcholinesterase의 활성도 변화와 알콜과 유기인제 농약의 상호 작용시 효소 활성도 변화를 비교하고, 임상적으로 쓰이고 있는 가역성 항콜린에스터라제 약물과도 비교하여 여러 항콜린에스터라제 약물의 효능과 알콜 섭취가 콜린에스터라제 활성도에 미치는 영향을 파악하는 것에 이 실험의 목적을 두었다. 남자 대학생 15명을 무작위 추출하여 상박부 정맥에서 채혈하여 혈액중 적혈구내에 존재하는 acetylcholinesterase와 혈장에 존재하는 acetylcholinesterase를 분리하였고 cholinesterase가 acetylcholine을 acetic acid와 choline으로 가수분해한다는 점을 이용하여 각 효소에 acetylcholine을 기질로서 주입한 후 1시간 후 생성된 acetic acid에 의해 변화된 pH를 pH meter로 측정하여 간접적으로 활성도를 알아내는 electrometric method를 이용하여 활성도 변화를 측정하였다. 위 실험 조건에서 가역성 항콜린에스터라제 약물이 유기인제 농약보다 콜린에스터라제 활성도를 감소시켰고, 유기인제로 인한 acetylcholinesterase와 pseudocholinesterase의 활성도 변화는 에탄올 처치시 더욱 현저하게 감소되는 것으로 나타났으며, 콜린에스터라제 활성제인 oxime은 acetylcholinesterase에 대해서는 효소 활성도를 높이지만 pseudocholinesterase의 효소 활성도에는 영향을 미치지 않는 것으로 나타났다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권11호
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• pp.6427-6431
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• 2013

Hepatocellular carcinoma (HCC) is one of the most prevalent cancers in the world and deeply threatens people's health, especially in China. Techniques of early diagnosis, prevention and prediction are still being discovered, among which the approaches based on single nucleotide polymorphisms in microRNA genes (miRNA SNPs) are newly proposed and show prospective potential. In particular, the association between SNPs in miRNA196a-2 (rs11614913) and miRNA146a (rs2910164) and HCC has been investigated. However, the conclusions made were conflicting, possibly due to insufficient sample size or population stratification. Further confirmations in well-designed large samples are still required. In this study, we verified the association between these two SNPs and the susceptibility to HCC by MassARRAY assay in a 2,000 large Chinese case-control sample. Significant association between rs11614913 and HCC was confirmed. Subjects with the genotype of CT+TT or T allele in rs11614913 were more resistant to HCC (CT+TT: OR (95% CI)=0.73 (0.57-0.92), P=0.01; T allele: OR (95% CI)=0.85 (0.75-0.97), P=0.02) and HBV-related HCC (CT+TT: OR (95% CI)=0.69 (0.53-0.90), P=0.01; T allele: OR (95% CI)=0.82 (0.71-0.95), P=0.01). The affected carriers of CT or TT also tended to have lower levels of serum AFP (P=0.01). This study demonstrated a role of rs11614913 in the etiology of HCC. Further research should focus on the clinical use of this miRNA SNP, so as to facilitate conquering HCC.

• 대한화학회지
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• 제51권1호
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• pp.36-42
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• 2007

B형 간염 바이러스(Hepatitis B Virus, HBV)는 만성감염, 간암의 원인이 되는 등 가장 큰 공중보건문제 중의 하나이다. 그리하여 감염 초기에 바이러스의 DNA 농도를 측정하여 관찰 하는 것이 중요하다. 본 연구에서는 기존의 Real Time-PCR과 새로운 방법인 Micro-PCR를 이용하여 HBV를 검출하였다. 단국대학교 병원에서 HBV 감염 환자의 혈청 샘플 120개를 얻은 후 분석하였고 각각 장비에서의 검출한계와 재현성, 민감성, 특이성, 분석시간을 비교해 보았다. 그 결과 Micro-PCR과 Real-Time PCR은 높은 검출한계와 재현성, 민감성, 특이성을 가지고 있었다. 그러나 Micro-PCR은 Real-Time PCR보다 빠른 시간 안에 증폭이 가능하며 조작하는데 있어 간편하였고 적은 양의 시약이 소모됨을 알 수 있었다. 그러므로 Micro-PCR은 신뢰성 있고 빠른 임상적 진단이나 각종 검사가 요구되는 곳에서 이용 가치가 높은 장비라 할 수 있겠다.

• 한국임상수의학회지
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• 제14권1호
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• pp.78-87
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• 1997

The study of present study was to determine the valuable laboratory tests for the differential diagnosis of lead poisoning in dogs. Sixteen mongrel dogs were divided into 2 experimental groups (A and B) and a control group (C). The A and B groups were administered orally 2 mg and 20 mg of lead per kilogram of body weight for 49 days, respectively. In addition to clinical observation, blood, urine and hair samples were collected on appointed day and examined for hematological changes, lead content of serum, whole blood and hair, and urinary $\delta$-aminolevulinic acid concentrations. All dogs were necropside on 49th day and examined for the lead content and histological changes of organs. The results obtained were summarized as follows: The group B showed digestive and nervous signs, and weight loss. The group A showed no significant hematological changes except polychromatophilla on the 7th day. But group B showed polychromatophilia as well as mild anemia and nucleated erythrocyte on the 7th and 35th day. Basophlic stippling erythrocytes were observed in some of the group B on the 14th day. The lead content of whole blood was increased significantly in both A and B groups on the 21the day. The urinary $\delta$-aminolevulinic acid content was increased in both A and B groups on the 7th day. The hair lead content of A and B groups was increased significantly on the 49th and 21th day, respectively. The lead contents of organs including liver, kidney, spleen, muscle and bone were increased significantly in group B. Histopathologic changes were characterized by hemorrhages, necrosis and intranuclear inclusion body in the epithelial cells of convoluted tubles of kidney, cloudy swelling and degeneration and/or necrosis of liver, enlargement of Virchow-Robin space, and swelling of endothelial cells and hyperplasia of the pericytes of brain. From these results it may be concluded that examination of nucleated erythrocyte/polychromatophilia, urinary $\delta$ -aminolevulinic acid, and whole blood and hair lead contents is a reliable clinico-pathological diagnostic methods, and that examination of the Virchow-Robin space, endothelial cells and pericytes of brain as well as intranuclear inclusion body in the epithelial cells of convoluted tubles of kidney is valualble postmortem diagnostic methods for lead poisoning in dogs.

• Tuberculosis and Respiratory Diseases
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• 제50권3호
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• pp.300-309
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• 2001

배 경 : 패혈증의 병태생리에는 많은 인자들이 관여를 한다. 이중 ET-1은 혈관수축 및 다장기 부전 등을 초래하고 IL-8은 호중구 매개성 염증반응을 유도하는 역할을 하며, 임상적 지표로서도 유용성이 알려지고 있다. 본 연구는 패혈증 환자에서 ET-1과 IL-8의 혈중농도를 연속적으로 측정하여 변화 양상과 상호 관련성을 평가하고 임상적인 의의를 조사하고자 한다. 방 법 : 패혈증 환자 19예에서 1일, 3일, 7일, 14일에 연속적으로 채혈을 하였고 APACHE III 점수를 측정하였다. 혈청 검체에서 ET-1과 IL-8의 농도를 immunoassay 법으로 측정하였다. 결 과 : 패혈증 환자에서 정상 대조군에 비하여 혈청 ET-1이 유의하게 높았다. 패혈증 환자에 있어서 1일 및 7일 ET-1은 생존군보다 사망군에서 더 높았다. 패혈성 쇼크를 동반한 군에서 1일 ET-1이 높았으며, 혈청 ET-1은 혈청 creatinine과 1일, 7일, 14일에 유의한 상관성이 있었다. 혈청 ET-1과 IL-8 농도는 14일에 서로 유의한 상관성이 나타났다. 결 론 : 패혈증에 있어서 혈청 ET-1은 예후, 패혈성 쇼크, 신부전 등과 관련성이 있었고 IL-8과도 상관성을 보여 임상적인 평가 및 예후 인자로서 유의성을 보였다.

• Asian-Australasian Journal of Animal Sciences
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• 제28권1호
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• pp.37-49
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• 2015

During pregnancy, the maternal body undergoes significant physiological changes. The present study assessed the changes on calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) metabolism in singleton and twin-pregnant dairy goats. The 42 goats used ($49.5kg{\pm}7.6$ body weight [BW]) were assigned at random to treatments that were factorially arranged to account for 2 breeds (Oberhasli and Saanen), 2 pregnancy types (singleton and twin) and 3 gestation periods (80, 110, and 140 days). Digestibility trials were performed at 80, 110, and 140 days of gestation. Mineral retention during pregnancy was determined in the maternal body, femur, uterus, mammary gland, fetus and fetal fluid. Blood samples were taken during pregnancy before and after a meal, and Ca, P, Mg, Na, K ions and alkaline phosphatase activity determined in serum. Bone mineral density was determined in the right femur. Statistical analyses were performed using the SAS MIXED procedure. Dry matter intake decreased linearly up to 140 days of gestation. Maternal BW gain, and Ca, P, and Mg retention (g/kg) decreased linearly with the advance of gestation days. Macromineral retention in maternal body (g/kg) was greater in Oberhasli than Saanen goats, and their fetuses had higher Ca, P, and Mg deposition (mg/g). Mineral retention (mg/g) increased in fetuses according to pregnancy development, with no differences between singleton and twin pregnancy. In the mammary gland, the retention of all minerals (g) increased with the days of pregnancy. In conclusion, related to Ca, P, and Mg metabolism can be divided into two stages. Up to 80 days of gestation, was characterized by the preparation of the maternal body reserves for future mineral demands. From 80 days of gestation onward, was characterized by the transfer of maternal body reserves for fetal development and colostrum production. Na and K supply was provided by adjustments in endogenous excretion and an increase in intestinal absorption. Finally, mineral metabolism was specific to each genotype and, except for Na, was not affected by the number of fetuses.

• Asian Pacific Journal of Cancer Prevention
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• 제15권8호
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• pp.3779-3784
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• 2014

Aims: To study alterations of plasma lipid profiles in carcinoma cervix and to assess significance comparedwith controls in different histological grades and stages. Materials and Methods: Totals of 99 histopathologically diagnosed cases and 35 controls from a tertiary hospital situated in the southern part of India which caters the rural and semi-urban populations were considered for the study. Fasting blood samples were taken to analyze total cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL-C) and low density lipoproteins cholesterol (LDL-C), for comparison of cases, grouped according to histological grades and stages, and controls. One way ANOVA was used for multiple group comparisons and the Student's t test (unpaired) for group wise comparisons. For all tests a 'p' value of 0.05 or less was considered as significant. Results: Out of 99 cases, most (n-39) were seen in the 40-49 year age group followed by 60-69 years (n-22). Serum TG significantly differed between cases and controls but without any relation to differentiation grade. The lipid profile parameters in various grades of cervical cancer were not statistically significant. Statistically significant increase of TC and LDL-C values was observed with increase in stage of the disease. Conclusions: The study showed TG is elevated in cervical cancer, and that TC and LDL-C are proportional to the spread of cancer as it increases from stage I to stage IV. An in-depth study of molecular changes in lipid metabolism in cervical cancer patients, enzymes/genes responsible and alterations in LDL receptors is necessary to provide information to decide whether the lipid profile has any diagnostic/prognostic role in cervical cancer.

• 대한한의학방제학회지
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• 제20권2호
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• pp.83-92
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• 2012

본 연구를 통해서, 한(寒) 처방의 대표 처방인 황련해독탕(黃連解毒湯)과 열(熱) 처방의 대표 처방인 건강부자탕(乾薑附子湯) 모두 항염 효능을 확인할 수 있었으나, 그 작용 기전에 있어 뚜렷한 차이를 나타내었다. 이러한 차이는 한의학의 기본 이론인 한열에 대한 개념에 대한 연구의 초석이 될 수 있기를 바라며, 각 개별 약물의 효능 및 다른 처방들과 다른 기전적 실험이 추가적으로 필요할 것을 보인다.