Effect of cadmium on immune responses and enzyme activities in BALB/c mouse 2. Humoral immune responses

윤창용,조정곤,송희종,Yoon, Chang-yong,Cho, Jeong-gon,Song, Hee-jong The Korean Society of Veterinary Science 1996 大韓獸醫學會誌 Vol.36 No.4

카드뮴이 마우스의 체액성 면역능에 미치는 영향을 평가하고자 BALB/c 마우스를 대상으로 0, 25, 50, 100 및 200ppm의 카드뮴이 첨가된 음료를 6~7주간 자유급식시킨 후 면양적혈구로 면역시켜 마우스의 항체생산능에 대한 카드뮴의 영향을 평가하였다. 1. 1차 면역동물 비장세포중 용혈반형성 세포수는 대조군에 비하여 모든 실험군에서 유의하게 감소하였다(p<0.01). 그러나 2차 면역동물 비장세포중 용혈반형성 세포수는 대조군에 비하여 실험군에서 다소 증가하였다. 2. 2차 면역반응에서의 SRBC에 대한 총항체가는 대조군에 비하여 실험군에서 증가하는 경향을 보였으며, IgG 항체반응은 50ppm 투여군을 제외하고 모든 실험군에서 조금씩 증가하였다. 3. 혈청내 $IgG_1$ 및 IgE 농도는 대조군에 비하여 모든 실험군에서 증가하였는데 특히 $IgG_1$의 증가가 지명하였다. 이상의 결과를 전보와 연계시켜 보면 카드뮴이 농도에 따라서는 생체내의 세포성 면역에서 중요한 역할을 하는 대식세포와 T세포 아군의 기능 또는 분포도 등을 변화시킴으로써 항체생산능에 영향을 미칠 수 있음을 시사한다. This study was designed to investigated the effects of cadmium(Cd) feeding on the humoral immune responses such as PFC-responses and production of immunoglobulins in BALB/c mice. The results obtained were summarized as follows; 1. Total PFCs of direct IgM antibody response were significantly decreased in all Cd-fed goups, whereas total PFCs of IgG antibody response were slightly increased. 2. In secondary immunization, total HA titers were increased in all Cd groups as compared with control, especially in 100ppmm group and also IgG titers were slightly increased except for 50ppm group. 3. The levels of $IgG_1$ were increased to 5.5% 18.7%, 17.4% and 7.2% in 25, 50, 100 and 200ppm groups as compared with control, respectively. And also the levels of IgE were increased to 5.7%, 7.3%, 8.7% and 0.4% in those of Cd groups, in order. Conclusively, concentrations of $IgG_1$, and IgE were increased in all Cd groups. Based on the results of this study and previous report, it was shown that Cd might affect humoral immune responses by modifying the distribution and function of cells playing in the cellular immune response.

Effect of cadmium on immune responses and enzyme activities of BALB/c mice 1. Cellular immune responses

윤창용,김태중,송희종,Yoon, Chang-yong,Kim, Tae-joong,Song, Hee-jong The Korean Society of Veterinary Science 1995 大韓獸醫學會誌 Vol.35 No.3

카드뮴이 BALC/c 마우스의 세포성면역능에 미치는 영향을 평가하고자 여러 농도의 카드뮴이 첨가된 음료를 장기간 동안 자유급식하고, 비장내 T helper 및 T suppressor cell의 분포도, 복강대식세포의 탐식능 및 시험관내에서 Con-A 및 LPS에 대한 비장세포의 증식능을 조사하여 다음과 같은 결과를 얻었다. 1. 각군의 6주간 체중 증가율은 대조군이 27.0%이었으며, 25, 50, 100 및 200ppm $CdCl_2$, 투여군의 체중증가율은 각각 28.54%, 28.31%, 20.49% 및 18.04%로 나타났다. 2. 체중당 비장무게(mg/g)는 대조군이 $4.34{\pm}0.23$이었으며, 25, 50, 100 및 200ppm $CdCl_2$, 투여군은 각각 $4.20{\pm}0.54$, $4.80{\pm}0.87$, $4.25{\pm}0.32$ 및 $4.40{\pm}0.32$이었다. 또한 총비장세포수(${\times}10^7$)는 대조군($24.29{\pm}5.98$)에 비해 25, 50, 100 및 200ppm $CdCl_2$, 투여군에서 각각 14.1%, 35.7%, 16.6% 및 22.0%증가하였다. 3. 총 $CD_4{^+}$ 세포수(${\times}10^7$)는 대조군이 $9.15{\pm}2.24$, 25, 50, 100 및 200ppm $CdCl_2$, 투여군은 각각 $10.40{\pm}2.04$, $12.04{\pm}3.08$, $10.20{\pm}3.16$ 및 $10.80{\pm}1.48$ 이었으며, 총 $CD_8{^+}$ 세포수(${\times}10^7$)는 대조군이 $2.32{\pm}0.56$, 각 실험군의 총세포수는 $2.54{\pm}0.27$, $3.12{\pm}0.80$, $2.25{\pm}0.70$ 및 $2.24{\pm}0.28$ 이었다. 한편, $CD_4{^+}/CD_8{^+}$ 비율은 50ppm 투여군($3.88{\pm}0.01$)을 제외하고 모든 실험군에서 대조군($3.97{\pm}0.02$)에 비해 유의하게 증가하였다(p<0.001). 4. 카드뮴 처리군의 SRBC에 대한 복강대식세포의 탐식능은 25 및 50ppm 투여군에서는 대조군에 비하여 유의하게 높았으나(p<0.05 및 p<0.01), 100 및 200ppm 투여군에서는 대조군과 유사하였다. 5. 시험관에서의 Con-A 및 LPS에 대한 비장림프구 증식반응은 LPS의 경우 카드뮴 농도에 비례하여 억제되었으나 Con-A에 대한 증식반응은 저농도($10^{-7}-10^{-6}M$)에서 증가된 양상을 보였다. 6. $CdCl_2$에 대한 비장세포의 세독독성은 $10^{-4}M$에서 특히 높았다. 이상의 결과는 카드뮴이 세포성면역반응에서 중요한 역할을 하는 T세포 아군의 분포도를 변화시키므로써 면역반응에 영향을 줄 수 있음을 시사한다. This study was undertaken to investigate the eftects of Cd administered ad libitum for 6 weeks on the cellular immune responses of Balb/c mice. The results were summarized as follows; 1. The mice fed 25, 50 and 100ppm Cd drank as much as control, but the mice fed 200ppm Cd drank significantly less water after Cd exposure than did control. Increasing rates of body weight of Cd-fed mice for 6 weeks were as this, control group 27.0%, Cd administered groups(25, 50, 100 and 200ppm) 28.54%, 28.31%, 20.49% and 18.04%, respectively. 2. Absolute spleen to body weight(mg/g) of control, 25, 50, 100 and 200ppm Cd administered groups were $4.34{\pm}0.23$, $4.20{\pm}0.54$, $4.80{\pm}0.87$, $4.25{\pm}0.32$ and $4.40{\pm}0.32$, respectively. Splenic cellularity(${\times}10^7$) of control was $24.29{\pm}5.98$ but increased to $27.72{\pm}5.48$, $32.96{\pm}8.44$, $28.32{\pm}8.76$ and $29.64{\pm}4.08$ in 25, 50, 100 and 200ppm Cd-fed groups, respectively. 3. Total $CD_4{^+}$ cells(${\times}10^7$) of control, 25, 50, 100 and 200ppm Cd-fed groups were $9.15{\pm}2.24$, $10.40{\pm}2.04$, $12.04{\pm}3.08$, $10.20{\pm}3.16$ and $10.80{\pm}1.48$, respectively and total $CD_8{^+}$ cells(${\times}10^7$) of these groups were $2.32{\pm}0.56$, $2.54{\pm}0.27$, $3.12{\pm}0.80$, $2.25{\pm}0.70$ and $2.24{\pm}0.28$, in order. On the other hand, $CD_4{^+}/CD_8{^+}$ ratios in total cells were increased significantly except for 50ppm Cd-fed group($3.88{\pm}0.01$). And that of control was $3.97{\pm}0.02$, but those of 25, 100 and 200ppm were $4.35{\pm}0.01$, $4.54{\pm}0.03$ and $4.81{\pm}0.03$. 4. Phagocytosis rates of peritoneal macrophages were increased significantly in 25 and 50ppm Cd groups($36.34{\pm}9.45$ and $37.15{\pm}9.22$, respectively), but 100 and 200ppm groups showed similar rates($18.20{\pm}3.04$ and $19.48{\pm}3.22$ respectively) to that of control($21.43{\pm}3.62$). 5. In mitogen-induced splenocyte proliferation, various concentraions of $CdCl_2(10^{-4}-10^{-7}M)$ were added to mitogen-stimulated culture in vitro. Splenocyte proliferation induced by LPS was decreased dose dependently, but proliferation by Con-A was increased slightly in concentrations of $10^{-7}-10^{-6}M$. 6. Significant cytotoxicity of splenocytes with $CdCl_2$ were shown at $10^{-4}M$ treated group, especially at 24 hrs. From these results, it could be concluded that Cd might modulate the immune responses by modifying a distribution of T cell subpopulations.

소의 순환혈액 및 림프조직내 T 및 B 림프구 분포

윤창용,김태중,채효석,김종면,송희종,Yoon, Chang-yong,Kim, Tae-Joong,Chai, Hyo-seok,Kim, Jong-Myeog,Song, Hee-jong 대한수의학회 1991 大韓獸醫學會誌 Vol.31 No.1

소의 순환혈액 및 림프조직내의 T 및 B 림프구의 분포를 파악하고자 소흉선 세포를 토끼에 과면역시켜 얻은 항혈청을 소의 적혈구, 간장분말 및 골수세포에 순차적으로 흡착시킨 항 흉선 세포혈청(RABTS)과 성숙 T 림프구에만 특이성을 가진 단클론항체 $BLT_1$ 및 B 림프구와 소수의 대식세포에 특이성을 가진 단클론항체 $_6E_{12}$를 1차 항체로 이용하여 ABPC법으로 T 및 B 림프구를 동정한 바 다음과 같은 결과를 얻었다. RABTS 및 $BLT_1$으로 동정한 순환혈액내 단핵세포(PB-MNCs) 중 T림프구의 비율은 각각 70.9${\pm}5.5%$ 및 $59.0{\pm}8.7%$이었으며, PB-MNCs중 nylon wool 비부착세포를 $BLT_1$ 및 $_6E_{12}$로 동정한 T 및 B 림프구의 비율은 각각 $91.6{\pm}1.0%$, $9.6{\pm}0.8%$이었다. 또한 $BLT_1$ 및 $_6E_{12}$로 동정한 서혜림프절, 장간막 림프절, 비장 및 흉선의 T/B림프구의 비율은 각각 $56.4{\pm}6.2/45.3{\pm}7.4%$, $55.6{\pm}7.7/42.3{\pm}5.8%$, $48.6{\pm}5.1/48.5{\pm}6.2%$ 및 $23.0{\pm}4.8/5.6{\pm}2.1%$이었으며, RABTS로 동정한 이들 림프조직내의 T림프구의 비율은 각각 $76.3{\pm}3.4%$, $74.2{\pm}8.2%$, $73.6{\pm}5.5%$ 및 $95.6{\pm}2.8%$이었다. 이상의 결과로 미루어 PB-MNCs네의 T림프구 분리는 nylon wool column법이 보다 효과적임을 알 수 있었다. This study was undertaken to identify the distribution of T and B lymphocytes in bovine peripheral blood and various lymphoid tissues by the method of ABPC using RABTS, $BLT_1$ and $_6E_{12}$ as primary antibodies. RABTS, $BLT_1$ and $_6E_{12}$ positive cells in PB-MNCs were 70.9${\pm}5.5%$, $59.0{\pm}8.7%$ and $23.0{\pm}8.7%$, respectively. $BLT_1$ and $_6E_{12}$ positive cells in nylon wool nonadherent cells of PB-MNCs were $91.6{\pm}1.0%$ and $9.6{\pm}0.8%$, respectively. In the lymphoid tissues such as inguinal lymph node, mesenteric lymph node, spleen and thymus, positive cells of RABTS were $76.3{\pm}3.4%$, $74.2{\pm}8.2%$, $73.6{\pm}5.5%$ and $95.6{\pm}2.8%$, those of $BLT_1$ were $56.4{\pm}6.2%$, $55.6{\pm}7.7%$, $48.6{\pm}5.1%$ and $23.0{\pm}4.8%$ and those of $_6E_{12}$ were $45.3{\pm}7.4%$, $42.3{\pm}5.8%$, $48.5{\pm}6.2%$ and $5.6{\pm}2.1%$, in order. These results are indicating that nylon wool column method is effective for separation of bovine ocytes.

Effect of cadmium on immune responses and enzyme activities in BALB/c mice 3. Enzyme activities

윤창용,김태중,조정곤,송희종,Yoon, Chang-yong,Kim, Tae-joong,Cho, Jeong-gon,Song, Hee-jong The Korean Society of Veterinary Science 1997 大韓獸醫學會誌 Vol.37 No.2

카드뮴이 마우스의 효소활성에 미치는 영향을 평가하고자 BALB/c 마우스를 대상으로 0, 25, 50, 100 및 200 ppm의 $CdCl_2$가 첨가된 음료를 7주동안 자유급식한 후 간 및 신장에서 카드뮴(Cd)의 축적정도 및 효소(LDH 및 SOD)활성 변화를 조사하여 다음과 같은 결과를 얻었다. 1. 간 및 신장에서의 Cd축적도는 투여량이 증가될 수록 높았으며 특히 신장에서 더욱 높았다. 2. 간장과 신장의 lactate dehydrogenase(LDH)활성치는 신장의 경우 농도가 증가할 수록 활성치도 증가(25 ppm ; p<0.05, 50, 100 및 200 ppm; p<0.01)하는 경향을 보였으나 간에서는 100 ppm까지는 농도에 비례하여 활성치도 증가(50 및 100 ppm; p<0.05)하였다가 200ppm 투여군에서는 25 ppm 투여군 수준으로 감소되었다. 3. Superoxide dismutase(SOD)활성은 25 ppm 투여군의 간장에서 유의한 상승치(p<0.05)를 보인 것을 제외하고는 대조군의 간 및 신장의 활성치와 유사한 결과를 보였다. 이상의 결과는 카드뮴이 농도에 따라서 생체내의 LDH 및 SOD와 같은 효소계의 활성에 영향을 미칠 수 있음을 시사한다. This study was designed to investigate the effects of varying concentrations of $CdCl_2$ on the enzyme activities such as LDH and SOD related with the accumulations of cadmium(Cd) in liver and kidney of BALB/c mice. 1. Cd accumulations in liver and kidey were increased in a dose dependent fashion. And also, this pattern was more conspicuous in kidney than that in liver. 2. LDH activities of liver and kidney were increased in a dose dependent fashion except for that of liver in 200 ppm Cd group which was similar to that of 25 ppm Cd group. 3. SOD activities of Cd exposed liver and kidney in Cd-fed mice similar to those of controls except for elevation of SOD activity of liver in 25 ppm Cd group. The results of this study suggest that the activities of various enzymes can be modulated by Cd intoxication. Acknowledgement: This study was financially supported in part by a Research Grant from Bio-Safty Research Institute, Chonbuk National University in 1997(CNU-BSRI, No. 97-03).

NaSr(PO₃)₃:Eu²+ 청색 형광체의 온도 의존적 형광 특성

윤창용(Chang yong Yoon),이상호(Sang ho Lee) 한국방사선학회 2021 한국방사선학회 논문지 Vol.15 No.3

고상법을 이용하여 Eu 이온이 첨가된 다중인산염 NaSr(PO₃)₃형광체를 합성하고 탄소열환원법을 통하여 NaSr(PO₃)₃:Eu²+ 형광체를 완성하였다. X선 회절 측정(XRD)을 통하여 형광체의 결정상을 확인하였다. NaSr(PO₃)₃:Eu²+ 형광체의 Eu²+ 농도 변화에 따른 발광 방출 및 여기 스펙트럼과 수명시간을 측정하였다. 320 nm 근자외선 여기에서 NaSr(PO₃)₃:Eu²+ 형광체는 Eu²+의 4f65d → f7(8S7/2) 전이에 따른 420 nm 중심의 밴드를 방출하였다. Eu²+ 첨가 된 형광체의 열적 특성을 증가시키기 위해 온도 의존적 방출 스펙트럼과 형광 감쇠곡선을 측정하고 형광체의 온도 의존성을 설명하였다. 본 연구로 희토류 이온이 첨가된 NaSr(PO₃)₃:Eu²+는 디스플레이, 검출기 등에 온도 센서 역할을 할 수 있는 우수한 온도 의존성을 보여준다. Eu²+ doped polyphosphate NaSr(PO₃)₃ blue-emitting phosphors were synthesized by the conventional solid state method in a reductive atmosphere. The phase formation of NaSr(PO₃)₃ phosphors were characterized by using the X-ray powder diffraction (XRD) measurement. The photoluminescence emission and excitation spectra of the NaSr(PO₃)₃:Eu²+ phosphor, and decay curves were measured. Under the near-UV excitation, the phosphor exhibits a band emission around 420 nm assigned to the 4f65d→f7(8S7/2) transition of Eu²+. The temperature dependent emission spectra and decay curves were measured to elevate the thermal properties of the Eu²+ doped phosphors. The as-prepared NaSr(PO₃)₃:Eu²+ phosphors show a strong temperature dependent performance, which can serve as a promising temperature sensor.

내병 다수성 차나무(Camellia sinensis L.) 신품종 “보림” 육성

윤창용(Chang Yong Yoon),김병호(Byeong Ho Kim),최정(Jeong Choi),김영옥(Young Ok Kim),기광연(Gwang Yeon Gi),박장현(Jang Hyun Park) 한국차학회 2016 한국차학회지 Vol.22 No.4

The new Camellia sinensis L. variety, ‘Borim’, was selected from 2,270 clones of the tea plant clone garden in the TEA Research Institute of Jeonnam Agricultural Research and Extension Services. This variety was selected to develop a superior variety for high productivity and disease (insect) resistance from 2005~2015. We evaluated the clones in therms of the characteristics of their leaves, nutrient components, and yield. ‘Borim’ was finally selected from four regional trials conducted from 2011~2015. The weight of 100 buds of ‘Borim’ was better than that of the control cultivar ‘Chamnok’. ‘Borim’ was observed to be more resistant to cold and disease than the control. The nutrient component contents of ‘Borim’ viz. the total nitrogen, total amino acid, caffeine and catechin contents, were 5.82%, 3,090 mg/100 g, 3.34% and 10.05%, respectively

양전자방출단층촬영과 대장내시경의 불일치 병변 확인을 위한 2차 대장내시경의 유용성 평가

윤창용 ( Chang Yong Yun ),정준오 ( Jun Oh Jung ),서승오 ( Seong O Suh ),유지원 ( Ji Won Yoo ),오유미 ( Yu Mi Oh ),안수민 ( Soo Min Ahn ),심형훈 ( Hyoung Hun Sim ),김은실 ( Eun Sil Kim ),배지윤 ( Ji Yoon Bae ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.6

PHA 및 conditioned medium 이 소의 순환혈액 림프구의 유약화와 rosette 형성에 미치는 영향

강세웅,윤창용,송희종,Kang, Sei-woong,Yoon, Chang-yong,Song, Hee-jong 대한수의학회 1994 大韓獸醫學會誌 Vol.34 No.2

This study was planned to estimate the activity of bovine circulating blood lymphocytes using phytohemagglutinin-M(PHA) known as T cell mitogen. Bovine circulating blood mononuclear cells(MNCs) was separated, and cultured with or without macrophage($PHA^+/M{\phi}^+$ or $PHA^+/M{\phi}^-$) in conditioned medium which stimulated with various concentration of PHA(0, 5, 10, 15 and $20{\mu}g/ml$ in medium), and then investigated the blastogenic response and rosette formation of lymphocytes. Blastogenic rate(BR) was especially increased in PHA concentration(10 and $15{\mu}g/ml$) of $PHA^+/M{\phi}^+$ group and their BR were $41.5{\pm}6.8%$ and $44.4{\pm}8.9%$, respectively and BR in PHA concentration(15 and $20{\mu}g/ml$) of $PHA^+/M{\phi}^-$ group was $32.8{\pm}6.2%$ and $31.4{\pm}4.6%$, respectively. BR of lymphocytes was more increased in $PHA^+/M{\phi}^+$ than $PHA^+/M{\phi}^-$ group when these cells were stimulated by PHA. Rosette forming rate(RFR) of lymphocytes to SRBC highly increased when SRBC was treated with AET and/or dextran, respectively. On the orther hand, RFR significantly increased more in $PHA^+/M{\phi}^+$ and $PHA^+/M{\phi}^-$ group than in control group, but when compared with two groups, statistical significancy was recognized only in PHA concentration($15{\mu}g/ml$, p<0.026) of $PHA^+/M{\phi}^+$ group.

복부 팽만 환자에서 리팍시민의 임상적 효과

윤기철 ( Kichul Yoon ),김나영 ( Nayoung Kim ),이주엽 ( Ju Yup Lee ),오동현 ( Dong Hyun Oh ),서아영 ( A Young Seo ),윤창용 ( Chang Yong Yun ),윤혁 ( Hyuk Yoon ),신철민 ( Cheol Min Shin ),박영수 ( Young Soo Park ),이동호 ( Dong Ho 대한소화기학회 2018 대한소화기학회지 Vol.72 No.3

Background/Aims: Abdominal bloating is a troublesome complaint due to insufficient understanding of the pathophysiology. The aim of this study was to evaluate the efficacy of rifaximin in reducing bloating associated with functional gastrointestinal disorders (FGIDs). Methods: A total of 63 patients were treated with rifaximin for FGIDs with bloating or gas-related symptoms between 2007 and 2013 at Seoul National University Bundang Hospital. Rifaximin was administered at a dose between 800 mg/day and 1,200 mg/day for 5 to 14 days. The proportion of patients who had adequate relief of global FGID symptoms and FGID-related bloating was retrospectively assessed. The response was recorded when the symptoms were reduced by at least 50% at the follow-up after treatment cessation. Results: The mean age was 56.8±14.2 years; 49.2% were females. According to Rome III criteria, 20.6% (13/63) had irritable bowel syndrome (IBS) with constipation, 9.5% (6/63) had IBS with diarrhea, 4.8% (3/63) had mixed IBS, 23.8% (15/63) had functional dyspepsia, and 12.7% (8/63) had functional bloating. Of the 51 subjects who were followed-up, 30 (58.8%) had adequate relief of global FGID symptoms and 26 (51.0%) experienced improvement of abdominal bloating after rifaximin treatment. The proportion of female was slightly higher in non-response group than in the response group (60.0% vs. 34.6%, p=0.069). Otherwise, there was no difference between the two groups. Conclusions: Despite the limitations of this retrospective study, our data confirms that rifaximin may be beneficial for abdominal bloating. Further prospective clinical trial with a larger cohort is needed. (Korean J Gastroenterol 2018;72:121-127)

스마트 관수 관리기술을 통한 유자의 생육 특성

이보배(Bo Bae Lee),윤창용(Chang Yong Yoon),정현주(Hyeon Ju Jeong),조윤섭(Youn Sup Cho) 한국원예학회 2022 한국원예학회 학술발표요지 Vol.2022 No.11