scholarly journals The Preventive Effect of Lactobacillus plantarum ZS62 on DSS-Induced IBD by Regulating Oxidative Stress and the Immune Response

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Yanni Pan ◽  
Yujing Ning ◽  
Jing Hu ◽  
Zhiying Wang ◽  
Xiufeng Chen ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Immune Response ◽  
Protein Expression ◽  
Lactobacillus Plantarum ◽  
Serum Levels ◽  
Preventive Effect ◽  
Tnf Α ◽  
Study Results ◽  
Mrna And Protein Expression ◽  
Ifn Γ

In this study, we used DSS to establish an IBD mouse model to study the preventive effect of Lactobacillus plantarum (L. plantarum) ZS62 on IBD in the context of oxidative stress and the immune response. We assessed the mitigating effect of this strain on IBD mice by examining the length of and histopathological changes in the colon, determining the serum antioxidant index and the levels of inflammatory cytokines, as well as the mRNA and protein expression levels of relevant genes. The study results showed that L. plantarum ZS62 could inhibit colonic atrophy in IBD mice, reduce the degree of colonic damage, downregulate the serum levels of MDA, MPO, IL-1β, IL-6, IL-12, TNF-α, and IFN-γ and the relative mRNA and protein expression of IL-1β, IL-12, TNF-α, COX-2, iNOS, and NF-κB p65 in mouse colon tissues, and upregulate the serum levels of CAT, T-SOD, and IL-10 and the relative mRNA and protein expression of Cu/Zn SOD, Mn SOD, GSH-Px, CAT, IL-10, and IκB-α in colon tissues. In summary, L. plantarum ZS62 exhibited a good preventive effect on DSS-induced IBD by regulating oxidative stress and the immune response.

scholarly journals Profile of IL-2, IL-4, IL-10, IFN- ? , TNF- ? and KC-like cytokines in pregnant bitches

2014 ◽  
Vol 66 (4) ◽  
pp. 1067-1072
Author(s):  
M.A.R. Feliciano ◽  
A.S.L. Silva ◽  
R.M. Crivelaro ◽  
M.E.F. Oliveira ◽  
L.N. Coutinho ◽  
...  
Keyword(s):  
Immune Response ◽  
Natural Killer ◽  
Serum Levels ◽  
Blood Samples ◽  
Tnf Α ◽  
Ifn Γ ◽  
Pathological Pregnancy ◽  
English Bulldog

The aim of this study was to determine the profile of IL-2, IL-4, IL-10, IFN-γ, and TNF-α cytokines and KC-like cells (natural killer) in pregnant bitches, unpublished values for the species. A total of 27 females of the Shi Tzu, Pug, English Bulldog and French breeds, weighing 4-20kg and aged 4-6 years were used. Blood samples were collected from bitches during the anestrous and on the 2nd, 5th, 6th, 7th and 8th week of pregnancy. Serum levels of cytokines were measured by panel MILLIPLEX MAP (CCYTO-90K, MILLIPORE, Billerica, Massachusetts, USA) validated for dogs. Twenty four females showed physiological pregnancy and three bitches showed pathological pregnancy. There was no difference between cytokine values during anestrous and gestational weeks of bitches (P>0.05). However, it was possible to verify the physiological behavior of serum levels during modulation of immune response in the gestational process of animals. In animals with gestational disorders, abnormal values for IL-2, IL-4 and INF-y were noted. It was concluded that serum levels of cytokines evaluated in pregnant bitches can help the better understanding of physiological and pathological gestational processes and correlated immunology in this species.

scholarly journals Proanthocyanidins Alleviates AflatoxinB1-Induced Oxidative Stress and Apoptosis through Mitochondrial Pathway in the Bursa of Fabricius of Broilers

Toxins ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 157 ◽  
Author(s):  
Shahid Rajput ◽  
Cong Zhang ◽  
Yue Feng ◽  
Xiao Wei ◽  
Mahmoud Khalil ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Enzymes ◽  
Protein Expression ◽  
Basal Diet ◽  
Mitochondrial Pathway ◽  
Bursa Of Fabricius ◽  
Enzymes Activities ◽  
Study Results ◽  
Mrna And Protein Expression ◽  
Antioxidant Enzymes Activities

Aflatoxin B1 (AFB1) is a serious threat to the poultry industry. Proanthocyanidins (PCs) demonstrates a broad range of biological, pharmacological, therapeutic, and chemoprotective properties. The aim of this study was to investigate the ameliorative effects of PCs against AFB1-induced histopathology, oxidative stress, and apoptosis via the mitochondrial pathway in the bursa of Fabricius (BF) of broilers. One hundred forty-four one-day old Cobb chicks were randomly assigned into four treatment groups of six replicates (6 birds each replicate) for 28 days. Groups were fed on the following four diets; (1) Basal diet without addition of PCs or AFB1 (Control); (2) basal diet supplemented with 1 mg/kg AFB1 from contaminated corn (AFB1); (3) basal diet supplemented with 250 mg/kg PCs (PCs); and (4) basal diet supplemented with 1 mg/kg AFB1 + 250 mg/kg PCs (AFB1+ PCs). The present study results showed that antioxidant enzymes activities of total superoxide dismutase (T-SOD), catalase (CAT), glutathione peroxidase (GSH-Px), and glutathione S-transferase (GST) in AFB1 treated group were (p < 0.05) decreased, whereas malondialdehyde (MDA) contents were significantly increased in comparison with the control group. Furthermore, we found that dietary PCs treatment ameliorated AFB1-induced oxidative stress in the BF through inhibiting the accumulation of MDA content and enhancing the antioxidant enzymes activities (T-SOD, CAT, GSH-Px, and GST). Similarly, PCs markedly enhanced messenger RNA (mRNA) expression of antioxidant genes (SOD, CAT, GPx1, and GST) in comparison with AFB1 group. Moreover, histological results showed that PCs alleviated AFB1-induced apoptotic cells in the BF of broilers. In addition, both mRNA and protein expression results manifested that mitochondrial-apoptosis-associated genes (Bax, caspase-9, caspase-3, and p53 and cytochrome c) showed up-regulation, while (Bcl-2) showed down-regulation in AFB1 fed group. The supplementation of PCs to AFB1 diet significantly reversed the mRNA and protein expression of these apoptosis-associated genes, as compared to the AFB1 group. Our results demonstrated that PCs ameliorated AFB1-induced oxidative stress by modulating the antioxidant defense system and apoptosis in the BF through mitochondrial pathway in broilers.

Fractalkine/CX3CL1 production by human airway smooth muscle cells: induction by IFN-γ and TNF-α and regulation by TGF-β and corticosteroids

2004 ◽  
Vol 287 (6) ◽  
pp. L1230-L1240 ◽  
Author(s):  
Maria B. Sukkar ◽  
Razao Issa ◽  
Shaoping Xie ◽  
Ute Oltmanns ◽  
Robert Newton ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Protein Expression ◽  
Smooth Muscle Cells ◽  
Airway Smooth Muscle ◽  
Muscle Cells ◽  
Airway Smooth Muscle Cells ◽  
Tnf Α ◽  
Mrna And Protein Expression ◽  
Ifn Γ ◽  
Sb 203580

Chemokine synthesis by airway smooth muscle cells (ASMC) may be an important process underlying inflammatory cell recruitment in airway inflammatory diseases such as asthma and chronic obstructive pulmonary disease (COPD). Fractalkine (FKN) is a recently described CX3C chemokine that has dual functions, serving as both a cell adhesion molecule and a chemoattractant for monocytes and T cells, expressing its unique receptor, CX3CR1. We investigated FKN expression by human ASMC in response to the proinflammatory cytokines IL-1β, TNF-α, and IFN-γ, the T helper 2-type cytokines IL-4, IL-10, and IL-13, and the fibrogenic cytokine transforming growth factor (TGF)-β. Neither of these cytokines alone had any significant effect on ASMC FKN production. Combined stimulation with IFN-γ and TNF-α induced FKN mRNA and protein expression in a time- and concentration-dependent manner. TGF-β had a significant inhibitory effect on cytokine-induced FKN mRNA and protein expression. Dexamethasone (10−8–10−6 M) significantly upregulated cytokine-induced FKN mRNA and protein expression. Finally, we used selective inhibitors of the mitogen-activated protein kinases c-Jun NH2-terminal kinase (JNK) (SP-610025), p38 (SB-203580), and extracellular signal-regulated kinase (PD-98095) to investigate their role in FKN production. SP-610025 (25 μM) and SB-203580 (20 μM), but not PD-98095, significantly attenuated cytokine-induced FKN protein synthesis. IFN-γ- and TNF-α-induced JNK phosphorylation remained unaltered in the presence of TGF-β but was inhibited by dexamethasone, indicating that JNK is not involved in TGF-β- or dexamethasone-mediated regulation of FKN production. In summary, FKN production by human ASMC in vitro is regulated by inflammatory and anti-inflammatory factors.

scholarly journals Angiotensin II AT1 blockade reduces the lipopolysaccharide-induced innate immune response in rat spleen

2009 ◽  
Vol 296 (5) ◽  
pp. R1376-R1384 ◽  
Author(s):  
Enrique Sánchez-Lemus ◽  
Julius Benicky ◽  
Jaroslav Pavel ◽  
Ignacio M. Larrayoz ◽  
Jin Zhou ◽  
...  
Keyword(s):  
Gene Expression ◽  
Immune Response ◽  
Inflammatory Response ◽  
Protein Expression ◽  
Innate Immune Response ◽  
Innate Immune ◽  
Bacterial Endotoxin ◽  
Ang Ii ◽  
Tnf Α ◽  
Mrna And Protein Expression

ANG II AT1 receptor blockade reduces inflammation in hypertension. To determine whether ANG II AT1 receptor blockers (ARBs) influence the innate immune inflammatory response in normotensive rats, we studied rat plasma and spleen after a 3-day subcutaneous pretreatment with the ARB candesartan followed by a single dose of the bacterial endotoxin LPS (50 μg/kg ip). Peripheral administration of LPS to rodents produced a generalized inflammatory response with increased release of TNF-α, IL-1β, and IL-6 into the circulation. Candesartan pretreatment reduced the LPS-induced release of TNF-α, IL-1β, and IL-6 into the circulation. The red pulp of rat spleen expressed large numbers of AT1 receptors and the LPS receptors Toll-like receptor 4 and CD14. Candesartan administration significantly blocked AT1 receptors. The ARB reduced the LPS-induced upregulation of CD14 gene expression; expression of TNF-α and IL-6 mRNA and protein; expression of IL-1β and IκB-α mRNA; COX-2 mRNA and protein expression and PGE2 concentration; inducible nitric oxide synthase (iNOS) gene and protein expression and iNOS activity; and Nox2 gene expression and 8-isoprostane levels. In addition, candesartan reduced the CD14 protein expression in saline- and LPS-treated rats. Our results suggest that AT1 receptors are essential for the development of the full innate immune response to bacterial endotoxin. The ARB decreased the general peripheral inflammatory reaction to LPS and partially decreased the inflammatory response in the spleen. An unrestricted innate immune response to the bacterial endotoxin may have deleterious effects for the organism and may lead to development of chronic inflammatory disease. We postulate that ARBs may have therapeutic effects on inflammatory conditions.

scholarly journals Immune cell pathology in rabbit hemorrhagic disease

2019 ◽  
Vol 12 (8) ◽  
pp. 1332-1340 ◽  
Author(s):  
Anna Babken Semerjyan ◽  
Mariam Armenak Sargsyan ◽  
Hranush Harutyun Arzumanyan ◽  
Lina Hayrapet Hakobyan ◽  
Liana Onik Abroyan ◽  
...  
Keyword(s):  
Immune Response ◽  
Inflammatory Cytokines ◽  
Serum Levels ◽  
Rabbit Hemorrhagic Disease Virus ◽  
Hemorrhagic Disease ◽  
Rabbit Hemorrhagic Disease ◽  
Left Shift ◽  
Tnf Α ◽  
Ifn Γ ◽  
Viral Inclusions

Aim: The aim of this research was to study the effect of rabbit hemorrhagic disease virus (RHDV) on the host immune response by examining the cellular composition/pathology of lymphoid organs and serum levels of tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ). Materials and Methods: Nine adult rabbits were inoculated with 1 ml of 10% infected liver homogenate, and three rabbits served as controls. The rabbit hemorrhagic disease (RHD)-induced animals were studied on 3 consecutive days post-infection. Diagnosis of RHD was made through routine hemagglutination tests and the polymerase chain reaction. Blood smears and tissue samples from bone marrow (BM), spleen, lymph nodes, and liver were analyzed for cell composition and cytopathology. Serum levels of TNF-α and IFN-γ were measured by enzyme-linked immunosorbent assay. Results: RHD showed a decreased absolute cell count of blood as well as lymph nodes, spleen, and BM cell populations with marked left shift. This was seen as a progressive rise in immature and blast cells. Quantitative cellular changes were accompanied by an increase in specific inflammatory cytokines. Immunocytopathological alterations were evidenced by: Vacuolized, hyperactivated tissue macrophages, finding of Dohle bodies in neutrophils, and activated lymphocytes with increased nuclear-cytoplasmic ratio. Cytoplasmic eosinophilic viral inclusions found in tissue (liver, spleen, and BM) macrophages were shown for the 1st time in RHD. Megakaryocytic emperipolesis was a common feature of RHD. Conclusion: These studies suggest that RHDV induces pathology in leukocytes due to hyperactivation with left shift (toward immature stages of the different cell lineages). Macrophages are increased in number and show an expressed cytopathic effect often accompanied by viral eosinophilic cytoplasmic inclusions. They also developed a secretory activation (increased levels of pro-inflammatory cytokines). Keywords: cytopathology, emperipolesis, eosinophilic viral inclusions, immune response, macrophages, rabbit hemorrhagic disease virus.

scholarly journals Comparative analysis of poliovirus-specific IgA and cytokine levels in the sera of Ascaris lumbricoides-infected and helminth-negative Nigerian children after oral poliovirus vaccination

2021 ◽  
Vol 22 (2) ◽  
pp. 170-178
Author(s):  
K.S. Akinwande ◽  
G.O. Arinola
Keyword(s):  
Immune Response ◽  
Serum Level ◽  
Ascaris Lumbricoides ◽  
Serum Levels ◽  
Intestinal Helminth ◽  
Post Vaccination ◽  
Nigerian Children ◽  
Median Serum ◽  
Tnf Α ◽  
Ifn Γ

Background: Intestinal helminth infection is associated with altered immune responses and compromised vaccine efficacy in infected children. Altered immune response due to Ascaris lumbricoides infection may compromise efficacy of oral poliovirus vaccination in children. There is no information on humoral immune response during oral poliovirus (OP) vaccination of A. lumbricoides–infected Nigerian children. The objective of this study is to determine the serum levels of cytokines (tumour necrosis factor–alpha TNF-α,  interferongamma IFN–γ, interleukins -4, -6, -8, -10) and poliovirus-specific IgA (PV-IgA) antibody in children infected with A. lumbricoides compared with helminth-negative children (control) before and after oral poliovirus vaccination. Methodology: Twenty-three A. lumbricoides-infected children between ages 5-15 years (13 males and 10 females) and 23 age (4-15 years) and sex-matched helminth-negative children who met selection criteria were enrolled into the study after ethical approval and informed consent. Their stool samples were examined for helminth ova using concentration technique. Sera were collected before and 3 weeks after OP vaccinations, and serum concentrations of IFN–γ, TNF–α, IL-4, -6, -8, -10, and poliovirus-specific IgA concentrations were determined by enzyme-linked immunosorbent assay. The level of statistical significance was set at α0.05. Results: Pre-vaccination serum levels of IFN–γ, IL–4, IL-6 and IL-8 were significantly higher in A. lumbricoides–infected children compared with pre-vaccination levels in helminth-negative children. Postvaccination serum levels of IFN–γ, IL–4 and IL-8 were  significantly higher in A. lumbricoides–infected children compared with post-vaccination serum levels in helminth-negative children. In the A. lumbricoides-infected children, pre-vaccination serum levels of IL-6 and IL-8 were significantly higher compared with post vaccination levels while pre-vaccination serum levels of IFN–γ, IL–4 and IL-8 were significantly higher in helminth-negative children compared with the post-vaccination levels. There was no significant reduction in post-vaccination median serum level of PV-IgA  compared with level before vaccination in A. lumbricoides-infected children. Also, there was no significant increase in post-vaccination median serum level of PV-IgA compared with level before vaccination in helminth-negative children. Conclusion: Oral polio vaccine administration caused decrease expression of inflammatory cytokines (IL-6 and IL-8) in A. lumbricoides-infected school children, and A. lumbricoides infection may reduce PV-IgA production following OP vaccination. Keywords: Ascaris lumbricoides infection, cytokines, children, poliovirus vaccination

scholarly journals Decitabine Promotes Modulation in Phenotype and Function of Monocytes and Macrophages That Drive Immune Response Regulation

Cells ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 868
Author(s):  
Fabiana Albani Zambuzi ◽  
Priscilla Mariane Cardoso-Silva ◽  
Ricardo Cardoso Castro ◽  
Caroline Fontanari ◽  
Flavio da Silva Emery ◽  
...  
Keyword(s):  
Immune Response ◽  
Hematological Malignancies ◽  
M2 Macrophage ◽  
M2 Polarization ◽  
Tnf Α ◽  
Monocytes And Macrophages ◽  
Ifn Γ ◽  
And Function ◽  
The Impact

Decitabine is an approved hypomethylating agent used for treating hematological malignancies. Although decitabine targets altered cells, epidrugs can trigger immunomodulatory effects, reinforcing the hypothesis of immunoregulation in treated patients. We therefore aimed to evaluate the impact of decitabine treatment on the phenotype and functions of monocytes and macrophages, which are pivotal cells of the innate immunity system. In vitro decitabine administration increased bacterial phagocytosis and IL-8 release, but impaired microbicidal activity of monocytes. In addition, during monocyte-to-macrophage differentiation, treatment promoted the M2-like profile, with increased expression of CD206 and ALOX15. Macrophages also demonstrated reduced infection control when exposed to Mycobacterium tuberculosis in vitro. However, cytokine production remained unchanged, indicating an atypical M2 macrophage. Furthermore, when macrophages were cocultured with lymphocytes, decitabine induced a reduction in the release of inflammatory cytokines such as IL-1β, TNF-α, and IFN-γ, maintaining IL-10 production, suggesting that decitabine could potentialize M2 polarization and might be considered as a therapeutic against the exacerbated immune response.

scholarly journals Hepatic DR5 Induces Apoptosis and Limits Adenovirus Gene Therapy Product Expression in the Liver

2002 ◽  
Vol 76 (11) ◽  
pp. 5692-5700 ◽  
Author(s):  
Huang-Ge Zhang ◽  
Jinfu Xie ◽  
Liang Xu ◽  
Pingar Yang ◽  
Xin Xu ◽  
...  
Keyword(s):  
Gene Therapy ◽  
Immune Response ◽  
Transgene Expression ◽  
Cell Activation ◽  
Nk Cell ◽  
Death Domain ◽  
Activated T Cells ◽  
Tnf Α ◽  
Product Expression ◽  
Ifn Γ

ABSTRACT A major limitation of adenovirus (Ad) gene therapy product expression in the liver is subsequent elimination of the hepatocytes expressing the gene therapy product. This elimination is caused by both necrosis and apoptosis related to the innate and cell-mediated immune response to the Ad. Apoptosis of hepatocytes can be induced by the innate immune response by signaling through death domain receptors on hepatocytes including the tumor necrosis factor alpha (TNF-α) receptor (TNFR), Fas, and death domain receptors DR4 and DR5. We have previously shown that blocking signaling through TNFR enhances and prolongs gene therapy product expression in the liver. In the present study, we constructed an Ad that produces a soluble DR5-Fc (AdsDR5), which is capable of neutralizing TNF-related apoptosis-inducing ligand (TRAIL). AdsDR5 prevents TRAIL-mediated apoptosis of CD3-activated T cells and decreases hepatocyte apoptosis after AdCMVLacZ administration and enhances the level and duration of lacZ transgene expression in the liver. In addition to blocking TRAIL and directly inhibiting apoptosis, AdsDR5 decreases production of gamma interferon (IFN-γ) and TNF-α and decreases NK cell activation, all of which limit Ad-mediated transgene expression in the liver. These results indicate that (i) AdsDR5 produces a DR5-Fc capable of neutralizing TRAIL, (ii) AdsDR5 can reduce activation of NK cells and reduce induction of IFN-γ and TNF-α after Ad administration, and (iii) administration of AdsDR5 can enhance Ad gene therapy in the liver.

scholarly journals Upregulation of Cytokines Is Detected in the Placentas of Cattle Infected with Neospora caninum and Is More Marked Early in Gestation When Fetal Death Is Observed

2008 ◽  
Vol 76 (6) ◽  
pp. 2352-2361 ◽  
Author(s):  
Anne Rosbottom ◽  
E. Helen Gibney ◽  
Catherine S. Guy ◽  
Anja Kipar ◽  
Robert F. Smith ◽  
...  
Keyword(s):  
Protein Expression ◽  
Fetal Death ◽  
Neospora Caninum ◽  
Late Gestation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Mrna Levels ◽  
Cytokine Mrna ◽  
Early Gestation ◽  
Tnf Α ◽  
Ifn Γ

ABSTRACT The protozoan parasite Neospora caninum causes fetal death after experimental infection of pregnant cattle in early gestation, but the fetus survives a similar infection in late gestation. An increase in Th1-type cytokines in the placenta in response to the presence of the parasite has been implicated as a contributory factor to fetal death due to immune-mediated pathological alterations. We measured, using real-time reverse transcription-PCR and enzyme-linked immunosorbent assay, the levels of cytokines in the placentas of cattle experimentally infected with N. caninum in early and late gestation. After infection in early gestation, fetal death occurred, and the levels of mRNA of both Th1 and Th2 cytokines, including interleukin-2 (IL-2), gamma interferon (IFN-γ), IL-12p40, tumor necrosis factor alpha (TNF-α), IL-18, IL-10, and IL-4, were significantly (P < 0.01) increased by up to 1,000-fold. There was extensive placental necrosis and a corresponding infiltration of CD4+ T cells and macrophages. IFN-γ protein expression was also highly increased, and a modest increase in transforming growth factor β was detected. A much smaller increase in the same cytokines and IFN-γ protein expression, with minimal placental necrosis and inflammatory infiltration, occurred after N. caninum infection in late gestation when the fetuses survived. Comparison of cytokine mRNA levels in separated maternal and fetal placental tissue that showed maternal tissue was the major source of all cytokine mRNA except for IL-10 and TNF-α, which were similar in both maternal and fetal tissues. These results suggest that the magnitude of the cytokine response correlates with but is not necessarily the cause of fetal death and demonstrate that a polarized Th1 response was not evident in the placentas of N. caninum-infected cattle.

scholarly journals Heavy metal intoxication compromises the host cytokine response in Ascaris Suum model infection

2016 ◽  
Vol 53 (1) ◽  
pp. 14-23 ◽  
Author(s):  
E. Dvorožňáková ◽  
M. Dvorožňáková ◽  
J. Šoltys
Keyword(s):  
Heavy Metal ◽  
Immune Response ◽  
Ascaris Suum ◽  
Cytokine Response ◽  
Parasitic Infections ◽  
Tnf Α ◽  
Ifn Γ ◽  
High Level ◽  
Larval Burden ◽  
Heavy Metal Intoxication

SummaryLead (Pb), Cadmium (Cd) and Mercury (Hg) are recognized for their deleterious effect on the environment and immunity where subsequently compromised immune response affects the susceptibility to the potential parasitic infections. This study examined the host cytokine response after heavy metal intoxication (Pb, Cd, and Hg) and subsequent Ascaris suum infection in BALB/c mice. Pb modulated murine immune response towards the Th2 type of response (delineated by IL-5 and IL-10 cytokine production) what was also dominant for the outcome of A. suum infection. Chronic intoxication with Pb caused a more intensive development of the parasite infection. Cd stimulated the Th1 immune response what was associated with increase in IFN-γ production and reduction of larvae present in the liver of intoxicated mice. The larval burden was also low in mice intoxicated with Hg. This was probably not related to the biased Th1/Th2 type of immune response, but rather to the bad host conditions caused by mercury toxicity and high level of pro-cachectic cytokine TNF-α.

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