• 제목/요약/키워드: Interleukin-17

검색결과 233건 처리시간 0.031초

Roles of Inflammatory Biomarkers in Exhaled Breath Condensates in Respiratory Clinical Fields

  • Yong Jun Choi;Min Jae Lee;Min Kwang Byun;Sangho Park;Jimyung Park;Dongil Park;Sang-Hoon Kim;Youngsam Kim;Seong Yong Lim;Kwang Ha Yoo;Ki Suck Jung;Hye Jung Park
    • Tuberculosis and Respiratory Diseases
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    • 제87권1호
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    • pp.65-79
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    • 2024
  • Background: Exhaled condensates contain inflammatory biomarkers; however, their roles in the clinical field have been under-investigated. Methods: We prospectively enrolled subjects admitted to pulmonology clinics. We collected exhaled breath condensates (EBC) and analysed the levels of six and 12 biomarkers using conventional and multiplex enzyme-linked immunosorbent assay, respectively. Results: Among the 123 subjects, healthy controls constituted the largest group (81 participants; 65.9%), followed by the preserved ratio impaired spirometry group (21 patients; 17.1%) and the chronic obstructive pulmonary disease (COPD) group (21 patients; 17.1%). In COPD patients, platelet derived growth factor-AA exhibited strong positive correlations with COPD assessment test (ρ=0.5926, p=0.0423) and COPD-specific version of St. George's Respiratory Questionnaire (SGRQ-C) score (total, ρ=0.6725, p=0.0166; activity, ρ=0.7176, p=0.0086; and impacts, ρ=0.6151, p=0.0333). Granzyme B showed strong positive correlations with SGRQ-C score (symptoms, ρ=0.6078, p=0.0360; and impacts, ρ=0.6007, p=0.0389). Interleukin 6 exhibited a strong positive correlation with SGRQ-C score (activity, ρ=0.4671, p=0.0378). The absolute serum eosinophil and basophil counts showed positive correlations with pro-collagen I alpha 1 (ρ=0.6735, p=0.0164 and ρ=0.6295, p=0.0283, respectively). In healthy subjects, forced expiratory volume in 1 second (FEV1)/forced vital capacity demonstrated significant correlation with CC chemokine ligand 3 (CCL3)/macrophage inflammatory protein 1 alpha (ρ=0.3897 and p=0.0068). FEV1 exhibited significant correlation with CCL11/eotaxin (ρ=0.4445 and p=0.0017). Conclusion: Inflammatory biomarkers in EBC might be useful to predict quality of life concerning respiratory symptoms and serologic markers. Further studies are needed.

Lipopolysaccharide로 유도된 Raw 264.7 세포에서 마늘대 추출물(Allium sativum L. Stems)의 염증성 사이토카인 및 iNOS, COX-2 발현에 대한 효과 검증 (Effect of garlic (Allium sativum L.) stems on inflammatory cytokines, iNOS and COX-2 expressions in Raw 264.7 cells induced by lipopolysaccharide)

  • 조용훈;김현정;김동인;장재윤;곽재훈;신유현;조영제;안봉전
    • 한국식품저장유통학회지
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    • 제22권4호
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    • pp.613-621
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    • 2015
  • 본 연구에서는 마늘의 부산물로 발생하는 마늘대의 항산화 및 항염증 효과를 알아보기 위하여 LPS로 염증을 유도한 Raw 264.7 세포에 대한 열수추출물(ASSW)과 70% 에탄올 추출물(ASSE)의 효과를 살펴보았다. ASSW의 폴리페놀 함량은 $37.08{\pm}1.51mg(TAE)/g$, ASSE의 폴리페놀 함량은 $44.7{\pm}1.32mg(TAE)/g$ 이 함유되어있음을 확인하였다. DPPH 실험과 $ABTS^+$ 실험에서 ASSW, ASSE 모두 농도 의존적으로 증가하였으며, DPPH의 경우 $1,000{\mu}g/mL$에서 대조군인 Vit.C의 $50{\mu}g/mL$의 항산화능이 있다는 것이 확인되었고, $ABTS^+$의 경우 $500{\mu}g/mL$ 이상부터 대조군인 Vit.C와 비슷한 효과를 나타냄으로서 ASSW, ASSE 모두 항산화능이 있다는 것을 확인하였다. MTT측정으로 인해 세포 독성을 가지지 않았던 농도대(5, 10, 25, 50, $100{\mu}g/mL$)에서 염증 억제 효과를 살펴보기 위해 NO를 측정한 결과 ASSW, ASSE 모두 $25{\mu}g/mL$에서부터 유의적으로 분비량이 감소함을 확인하였으며 특히 $100{\mu}g/mL$의 농도에서 약 18%, 23%의 억제 효과를 보였다. 또한 대식세포의 염증성 cytokine인 IL-6, TNF-${\alpha}$, IL-$1{\beta}$$PGE_2$의 분비량을 첨가 농도 의존적으로 억제함을 확인하였다. 특히 $PGE_2$에 대해 ASSW, ASSE $100{\mu}g/mL$의 농도에서 약 55%, 60%의 감소효과를 보였다. ASSW의 iNOS, COX-2의 발현 저해효과는 나타내지 못하였지만, ASSE는 $100{\mu}g/mL$의 농도에서 iNOS의 발현량이 현저하게 억제됨을 확인하였고, COX-2의 경우 농도 의존적으로 저하되어 특히 $50{\mu}g/mL$, $100{\mu}g/mL$의 구간에서 단백질 발현 저해효과가 있음을 확인하였다. 이를 통해 ASSW, ASSE 모두 항산화 효과와 항염증 효과가 있음을 확인하였으며, ASSW 보다 ASSE에서 활성산소종(reactive oxygen species, ROS) 및 ROS에 의해 유발되는 염증을 억제시켜주는 소재가 될수있을 것이라 예상된다.

기관지 천식 환자에서 부신피질 스테로이드 투여 전후 유도객담내 Nitric Oxide 및 Cytokine의 변화 (The Effect of Glucocorticoid on the Change of Nitric Oxide and Cytokine Levels in Induced Sputum from Patients with Bronchial Asthma)

  • 김태연;윤형규;최영미;이숙영;권순석;김영균;김관형;문화식;박성학;송정섭
    • Tuberculosis and Respiratory Diseases
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    • 제48권6호
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    • pp.922-931
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    • 2000
  • 배경 및 목적 : 기관지천식의 중요한 특징적인 병인인 기도의 만성염증 상태와 증상의 변화를 판단하는 객관적인 지표로서 여러 가지 방법이 시도되고 있는데 최근에는 비침습적이고 비교적 간단한 유도객담 검사로 침습적인 기관지 조직 검사나 기관지폐포세척술을 대신하려는 경향이 있다. 저자들은 기관지천식 환자의 유도객담에서 호산구, eosinophil cationic protein(ECP), interleukin(IL)-3, IL-5, granulocyte-macrophage colony-stimulating factor(GM-CSF), 그리고, nitric oxide(NO)의 유도체를 측정하고, 객담내 NO 및 호산구와 관계가 있다고 알려진 cytokine들의 농도가 증상 및 기도의 염증상태를 반영하는 지표로서 이용될 수 있는지를 알아보고자 하였다. 방법 : 기관지천식 환자 30명을 대상으로 2주간 경구용 프레드니솔론 30mg을 투여하고, 약제 투여 전후로 1초간 노력성 호기량($FEV_1$과 혈중 총 호산구수, 그리고 유도객담 검사를 시행하여 객담내 호산구 비율과 ECP, IL-3, IL-5, GM-CSF, 그리고, NO 유도체를 측정하였다. 결과 : 대상환자중 남자는 13a여(43.3%), 여자는 17명(56.7%)이었고 연령분포는 19세부터 64세까지였으며 평균연령은 41.8세였다. 30명중 2명은 두 번째 검사시 객담이 채취되지 않았고, 3명은 두 번째 방문을 하지 않았다. 프레드니솔론 투여후 평균 1초당 노력성 호기량(% of predicted value)은 78.1$\pm$27.2%에서 90.3$\pm$18.3%로 개선되었고(P<0.001), 유도객담내 평균 호산구비율은 56.1$\pm$27.2%에서 29.6$\pm$21.3%로 (P<0.001), 객담내 평균 ECP 농도는 $134.5\pm68.1{\mu}\;g/L$에서 $41.5\pm42.4\;{\mu}g/L$로 유의하게 감소하였고(P<0.001), 평균 혈중 총 호산구수는 425.7$\pm$265.9에서 287.7$\pm$294.7로 감소하는 경향을 보였지만 통계적으로 유의하지 않았다. 유도객담내 NO 유도체의 평균 농도는 프레드니솔론 투여 전호로 유의한 차이가 없었으며($70.4\pm44.6\;{\mu}mol/L$ vs $91.5\pm48.3\;{\mu}mol/L$) 평균 eotaxin 농도는 27.7$\pm$12.8 pg/ml에서 21.7$\pm$8.7 pg/ml로 감소하는 경향을 보였다. IL-3, IL-5, CSF는 대부분의 경우에서 측정되지 않았다. 치료전의 1초당 노력성 호기량과 객담내 ECP의 농도 사이에 의미있는 역상관관계가 있었고(r=0.369, P<0.05). 결론 : 유도객담내에서 측정 가능한 여러 인자중 eotaxin 및 ECP가 치료에 따른 기도염증 상태의 변화를 반영하는 지표로 이용될수 있을 것으로 생각된다. 그 외 유도객담내 호산구비율 측정도 치료에 따른 증상이나 염증의 변화를 손쉽게 관찰할수 있는 간단한 방법으로 생각되지만 유도객담에서 Griess reagent를 이용한 NO 유도체의 측정은 기관지천식의 증상이나 염증상태의 변화를 반영하는 지표로서 유용하지 않을 것으로 생각된다.

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Effect of golden needle mushroom (Flammulina velutipes) stem waste on laying performance, calcium utilization, immune response and serum immunity at early phase of production

  • Mahfuz, Shad;Song, Hui;Liu, Zhongjun;Liu, Xinyu;Diao, Zipeng;Ren, Guihong;Guo, Zhixin;Cui, Yan
    • Asian-Australasian Journal of Animal Sciences
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    • 제31권5호
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    • pp.705-711
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    • 2018
  • Objective: This experiment was conducted to evaluate the effects of golden needle mushroom (Flammulina velutipes) stem waste (FVW), on organic eggs production, calcium utilization, antibody response, serum immunoglobulin, and serum cytokine concentration at early phase of production in laying hens. Methods: A total 210, 19 weeks old aged ISA Brown layers were randomly assigned into 5 equal treatment groups, with 7 replications of 6 hens each. Dietary treatment included a standard basal diet as control; antibiotic (0.05% flavomycin); 2% FVW; 4% FVW; and 6% FVW. The experimental duration was 10 weeks. Results: There was no significant differences (p>0.05) on hen day egg production, egg weight, egg mass, feed intake, and feed conversion ratio (FCR) among experimental groups. Unmarketable eggs were significantly lower (p<0.05) both in 4% FVW and 6% FVW fed groups than control group. The calcium retention and calcium in egg shell deposition were significantly higher (p<0.05) in FVW inclusion groups than control and antibiotic groups. Antibody titers against Newcastle diseases were significantly higher (p<0.05) in 6% FVW fed group (except combined with 4% FVW at day 147) and infectious bronchitis were significantly higher (p<0.05) in FVW fed groups (except 2% FVW and 4% FVW at day 161) than control and antibiotic groups. Serum immunoglobulin sIgA was significantly higher (p<0.05) in all levels of FVW and IgG was significantly higher (p<0.05) in 4% FVW than control and antibiotic groups. Serum cytokine concentration interleukin-2 (IL-2) was significantly higher (p<0.05) in 6% FVW; IL-6 and tumor necrotic $factor-{\alpha}$ were significantly higher (p<0.05) both in 4% FVW and 6% FVW than control and antibiotic groups; IL-4 was significantly higher (p<0.05) in antibiotic, 2% FVW and 4% FVW fed groups than control. Conclusion: F. velutipes mushroom waste can be used as a novel substitute for antibiotic for organic egg production and sound health status in laying hens.

Effects of dietary supplementation of lipid-coated zinc oxide on intestinal mucosal morphology and expression of the genes associated with growth and immune function in weanling pigs

  • Song, Young Min;Kim, Myeong Hyeon;Kim, Ha Na;Jang, Insurk;Han, Jeong Hee;Fontamillas, Giselle Ann;Lee, Chul Young;Park, Byung-Chul
    • Asian-Australasian Journal of Animal Sciences
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    • 제31권3호
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    • pp.403-409
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    • 2018
  • Objective: The present study was conducted to investigate the effects of a lipid-coated zinc oxide (ZnO) supplement Shield Zn (SZ) at the sub-pharmacological concentration on intestinal morphology and gene expression in weanling pigs, with an aim to gain insights into the mechanism of actions for SZ. Methods: Forty 22-day-old weanling pigs were fed a nursery diet supplemented with 100 or 2,500 mg Zn/kg with uncoated ZnO (negative control [NC] or positive control [PC], respectively), 100, 200, or 400 mg Zn/kg with SZ for 14 days and their intestinal tissues were taken for histological and molecular biological examinations. The villus height (VH) and crypt depth (CD) of the intestinal mucosa were measured microscopically following preparation of the tissue specimen; expression of the genes associated with growth and immune function was determined using the real-time quantitative polymerase chain reaction. Results: There was no difference in daily gain, gain:feed, and diarrhea score between the SZ group and either of NC and PC. The VH and VH:CD ratio were less for the SZ group vs NC in the jejunum and duodenum, respectively (p<0.05). The jejunal mucosal mRNA levels of insulin-like growth factor (IGF-I) and interleukin (IL)-10 regressed and tended to regress (p = 0.053) on the SZ concentration with a positive coefficient, respectively, whereas the IL-6 mRNA level regressed on the SZ concentration with a negative coefficient. The mRNA levels of IGF-I, zonula occludens protein-1, tumor necrosis $factor-{\alpha}$, IL-6, and IL-10 did not differ between the SZ group and either of NC and PC; the occludin and transforming growth $factor-{\beta}1$ mRNA levels were lower for the SZ group than for PC. Conclusion: The present results are interpreted to suggest that dietary ZnO provided by SZ may play a role in intestinal mucosal growth and immune function by modulating the expression of IGF-I, IL-6, and IL-10 genes.

정공등현호색(丁公藤玄胡索) 약침(藥鍼)이 류마티스 관절염 생쥐 모델에 미치는 영향 (A Study on the Effect of Erycibae Caulis and Corydalis Tuber Pharmacopuncture on a Mouse Model with Collagen Induced Rheumatoid Arthritis)

  • 김현지;전주현;김영일
    • Journal of Acupuncture Research
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    • 제33권2호
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    • pp.21-34
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    • 2016
  • Objectives : The aim of the present study is to examine the effect and mechanism of Erycibae Caulis and Corydalis Tuber Pharmacopuncture (ECP) on a mouse model with collagen induced rheumatoid arthritis (CIA). Methods : We evaluated the Aspartate aminotransferase (AST), Alanine aminotransferase (ALT), Creatinine, and the Blood urea nitrogen (BUN) of serum to examine the safety of this study. In vivo, we compared the results of the non-treated group, the normal saline pharmacopuncture treated control group, the indomethacin treated group and the ECP group. We evaluated rheumatoid arthritis manifestation and the Rheumatoid Arthritis Index (AI). Also, immune cells in blood affected by ECP were evaluated by calculating the level of white blood cells (WBC), neutrophil, lympocytes and monocytes. Next, the level of Immunoglobulin M (IgM), Immunoglobulin G (IgG), Interleukin (IL)-$1{\beta}$, IL-6, IL-17, Tumor Necrosis Factor (TNF)-${\alpha}$ and Granulocyte-macrophage Stimulating Factor (GM-CSF)in serum were measured. We examined the imaging of cartilage degeneration using micro CT-arthrography of the hind paw. Additionally, we examined the effects of reducing bone volume (BV) ratio and bone surface/bone volume (BS/BV) ratio with 3D Micro-CT. Finally, we did a histopathologic examination analysis. Results : The absence of liver and kidney toxicity was evident. In vivo, edema of the joints of the ECP group decreased greatly in macroscopic observation. AI measurement of the ECP group also decreased significantly compared to the control group. The level of WBC, neutrophil, lympocytes, and monocytes in the blood decreased but there was no statistical significance of this data. IgM of the ECP group decreased significantly compared to the control group. IL-$1{\beta}$, IL-6, TNF-${\alpha}$, and GM-CSF production of the ECP group decreased significantly compared to the control group. As a result of examining joint condition with 3D micro CT, deformation and destruction of the joint was shown to have decreased. Bone density of ECP group increased at a statistically significant level compared to the control group. Degree of joint inflammation of ECP group decreased significantly compared to the control group. After H&E and M-T staining, infiltration of immune cells, subsidence of the cartilage, damage to the synovial cells and joint erosion decreased. Conclusion : This study showed that ECP hindered the process of rheumatoid arthritis and protected joints and cartilage.

Adiponectin induced AMP-activated protein kinase impairment mediates insulin resistance in Bama mini-pig fed high-fat and high-sucrose diet

  • Niu, Miaomiao;Xiang, Lei;Liu, Yaqian;Zhao, Yuqiong;Yuan, Jifang;Dai, Xin;Chen, Hua
    • Asian-Australasian Journal of Animal Sciences
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    • 제30권8호
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    • pp.1190-1197
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    • 2017
  • Objective: Adipose tissue is no longer considered as an inert storage organ for lipid, but instead is thought to play an active role in regulating insulin effects via secretion adipokines. However, conflicting reports have emerged regarding the effects of adipokines. In this study, we investigated the role of adipokines in glucose metabolism and insulin sensitivity in obese Bama mini-pigs. Methods: An obesity model was established in Bama mini-pigs, by feeding with high-fat and high-sucrose diet for 30 weeks. Plasma glucose and blood biochemistry levels were measured, and intravenous glucose tolerance test was performed. Adipokines, including adiponectin, interleukin-6 (IL-6), resistin and tumor necrosis factor alpha ($TNF-{\alpha}$), and glucose-induced insulin secretion were also examined by radioimmunoassay. AMP-activated protein kinase (AMPK) phosphorylation in skeletal muscle, which is a useful insulin resistance marker, was examined by immunoblotting. Additionally, associations of AMPK phosphorylation with plasma adipokines and homeostasis model assessment of insulin resistance (HOMA-IR) index were assessed by Pearce's correlation analysis. Results: Obese pigs showed hyperglycemia, high triglycerides, and insulin resistance. Adiponectin levels were significantly decreased (p<0.05) and IL-6 amounts dramatically increased (p<0.05) in obese pigs both in serum and adipose tissue, corroborating data from obese mice and humans. However, circulating resistin and $TNF-{\alpha}$ showed no difference, while the values of $TNF-{\alpha}$ in adipose tissue were significantly higher in obese pigs, also in agreement with data from obese humans but not rodent models. Moreover, strong associations of skeletal muscle AMPK phosphorylation with plasma adiponectin and HOMA-IR index were obtained. Conclusion: AMPK impairment induced by adiponectin decrease mediates insulin resistance in high-fat and high-sucrose diet induction. In addition, Bama mini-pig has the possibility of a conformable model for human metabolic diseases.

피부각질세포에서 치자백피탕(梔子柏皮湯)의 아토피 피부염 개선효과 (Protective Effects of Chijabaegpi-tang on Atopic Dermatitis in TNF-α/IFNγ-induced HaCaT Cells)

  • 은소영;윤정주;김혜윰;안유미;한병혁;홍미현;손찬옥;나세원;이윤정;강대길;이호섭
    • 동의생리병리학회지
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    • 제32권4호
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    • pp.226-231
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    • 2018
  • Chijabaegpi-tang (CHG) is an oriental herbal medicine that has been used for its various pharmacological effects, which include anti-inflammatory, anti-oxidant and immunoregulation activities. In the present study, we investigated which skin inflammations are involved in the $TNF-{\alpha}/IFN{\gamma}$-induced HaCaT cells. We investigated the suppressive effect of CHG on $TNF-{\alpha}/IFN{\gamma}$-induced HaCaT cell production of the following chemokines: macrophage-derived chemokine (MDC)/CCL22; regulated on activation, normal T-cell expressed and secreted (RANTES)/CCL5; and interleukin-8 (IL-8); thymus and activation-regulated chemokine (TARC)/CCL17. The pre-treatment of HaCaT cells with CHG suppressed $TNF-{\alpha}/IFN{\gamma}$-induced nuclear transcription factor kappa-B ($NF-{\kappa}B$). In addition, CHG inhibited $TNF-{\alpha}/IFN{\gamma}$-induced phosphorylation of ERK and p38. $TNF-{\alpha}/IFN{\gamma}$ suppressed the expression of skin barrier proteins, including filaggrin (FLG), Involucrin (IVL) and loricrin (LOR). By contrast, CHG restored the expression of FLG, IVL and LOR. Taken together, our findings suggest that CHG could be a therapeutic agent for prevention of skin disease, including atopic dermatitis.

Effects of Lonicera japonica extract on performance, blood biomarkers of inflammation and oxidative stress during perinatal period in dairy cows

  • Zhao, Yiguang;Tang, Zhiwen;Nan, Xuemei;Sun, Fuyu;Jiang, Linshu;Xiong, Benhai
    • Asian-Australasian Journal of Animal Sciences
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    • 제33권7호
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    • pp.1096-1102
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    • 2020
  • Objective: An experiment was conducted to evaluate the effects of Lonicera japonica extract (LJE) on milk production, rumen fermentation and blood biomarkers of energy metabolism, inflammation and oxidative stress during the perinatal period of Holstein dairy cows. Methods: Eighteen Holstein dairy cows were used in a complete randomized design experiment with 3 dietary treatments and 6 cows per treatment. All cows received the same basal total mixed ration (TMR) including a prepartal diet (1.35 Mcal of net energy for lactation [NEL]/kg of dry matter [DM], 13.23% crude protein [CP]) from -60 d to calving and a postpartal diet (1.61 Mcal of NEL/kg of DM, 17.39% CP) from calving to 30 days in milk (DIM). The 3 dietary treatments were TMR supplemented with LJE at 0 (control), 1 and 2 g/kg DM, respectively. LJE was offered from 21 d before calving to 30 DIM. Dry matter intake (DMI) and milk production were measured daily after calving. Milk and rumen fluid samples were collected on 29 and 30 d after calving. On -10, 4, 14, and 30 d relative to calving, blood samples were collected to analyze the biomarkers of energy metabolism, inflammation and oxidative stress. Results: Compared with control diet, LJE supplementation at 1 and 2 g/kg DM increased DMI, milk yield and reduced milk somatic cell count. LJE supplementation also decreased the concentrations of blood biomarkers of pro-inflammation (interleukin-1β [IL-1β], IL-6, and haptoglobin), energy metabolism (nonesterified fatty acid and β-hydroxybutyric acid) and oxidative stress (reactive oxygen metabolites), meanwhile increased the total antioxidant capacity and superoxide dismutase concentrations in blood. No differences were observed in rumen pH, volatile fatty acid, and ammonia-N (NH3-N) concentrations between LJE supplemented diets and the control diet. Conclusion: Supplementation with 1 and 2 g LJE/kg DM could increase DMI, improve lactation performance, and enhance anti-inflammatory and antioxidant capacities of dairy cows during perinatal period.

Regulation of S100G Expression in the Uterine Endometrium during Early Pregnancy in Pigs

  • Choi, Yo-Han;Seo, Hee-Won;Shim, Jang-Soo;Kim, Min-Goo;Ka, Hak-Hyun
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권1호
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    • pp.44-51
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    • 2012
  • Calcium ions play an important role in the establishment and maintenance of pregnancy, but molecular and cellular regulatory mechanisms of calcium ion action in the uterine endometrium are not fully understood in pigs. Previously, we have shown that calcium regulatory molecules, transient receptor potential vanilloid type 5 (TRPV6) and calbindin-D9k (S100G), are expressed in the uterine endometrium during the estrous cycle and pregnancy in a pregnancy status- and stage-specific manner, and that estrogen of conceptus origin increases endometrial TRPV6 expression. However, regulation of S100G expression in the uterine endometrium and conceptus expression of S100G has been not determined during early pregnancy. Thus, we investigated regulation of S100G expression by estrogen and interleukin-$1{\beta}$ (IL1B) in the uterine endometrium and conceptus expression of S100G during early pregnancy in pigs. We obtained uterine endometrial tissues from day (D) 12 of the estrous cycle and treated with combinations of steroid hormones, estradiol-$17{\beta}$ ($E_2$) and progesterone ($P_4$), and increasing doses of IL1B. Real-time RT-PCR analysis showed that $E_2$ and IL1B increased S100G mRNA levels in the uterine endometrium, and conceptuses expressed S100G mRNA during early pregnancy, as determined by RT-PCR analysis. To determine if endometrial expression of S100G mRNA during the implantation period was affected by the somatic cell nuclear transfer (SCNT) procedure, we compared S100G mRNA levels in the uterine endometrium from gilts with SCNT-derived conceptuses with those from gilts with conceptuses derived from natural mating on D12 of pregnancy. Real-time RT-PCR analysis showed that levels of S100G mRNA in the uterine endometrium from gilts carrying SCNT-derived conceptuses was significantly lower than those from gilts carrying conceptuses derived from natural mating. These results showed that S100G expression in the uterine endometrium was regulated by estrogen and IL1B of conceptus origin, and affected by the SCNT procedure during early pregnancy. These suggest that conceptus signals regulate S100G, an intracellular calcium transport protein, for the establishment of pregnancy in pigs.