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Li W, Hakkak R. Soy Protein Concentrate Diets Inversely Affect LPS-Binding Protein Expression in Colon and Liver, Reduce Liver Inflammation, and Increase Fecal LPS Excretion in Obese Zucker Rats. Nutrients 2024; 16:982. [PMID: 38613016 PMCID: PMC11013665 DOI: 10.3390/nu16070982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Dietary soy protein and soy isoflavones have anti-inflammatory properties. Previously, we reported that feeding soy protein concentrate diet (SPC) with low or high isoflavone (LIF or HIF) to young (seven-week-old) obese (fa/fa) Zucker rats inhibits lipopolysaccharide (LPS) translocation and decreases liver inflammation compared to a casein control (CAS) diet. The current study investigated whether SPC-LIF and SPC-HIF diets would reduce liver inflammation in adult obese Zucker rats fed a CAS diet. A total of 21 six-week-old male obese (fa/fa) Zucker rats were given CAS diet for 8 weeks to develop obesity then randomly assigned to CAS, SPC-LIF, or SPC-HIF (seven rats/group) diet for an additional 10 weeks. The expression of LPS-translocation, inflammation, and intestinal permeability markers were quantified by qPCR in liver, visceral adipose tissue (VAT), and colon. LPS concentration was determined in both the colon content and fecal samples by a Limulus amebocyte lysate (LAL) test. SPC-LIF and SPC-HIF diets significantly decreased liver LPS-binding protein (LBP) expression compared to CAS diet (p < 0.01 and p < 0.05, respectively). SPC-HIF diet also significantly decreased liver MCP-1 and TNF-α expression (p < 0.05) and had a trend to decrease liver iNOS expression (p = 0.06). In the colon, SPC-HIF diet significantly increased LBP expression compared to CAS diet (p < 0.05). When samples from all three groups were combined, there was a negative correlation between colon LBP expression and liver LBP expression (p = 0.046). SPC diets did not alter the expression of intestinal permeability markers (i.e., occludin, claudin 3, and zonula occludens-1) in the colon or inflammation markers (i.e., TNF-α and iNOS) in VAT or the colon. LPS levels in the colon content did not differ between any groups. Fecal LPS levels were significantly higher in the SPC-LIF and SPC-HIF groups compared to the CAS group (p < 0.01). In conclusion, SPC, particularly SPC with HIF, reduces liver LBP expression and inflammation makers (i.e., TNF-α and MCP-1 expression) in adult obese Zucker rats, likely by reducing LPS translocation.
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Affiliation(s)
- Wei Li
- Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Reza Hakkak
- Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
- Arkansas Children’s Research Institute, Little Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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Tomooka S, Oishi E, Asada M, Sakata S, Hata J, Chen S, Honda T, Suzuki K, Watanabe H, Murayama N, Wada N, Kitazono T, Ninomiya T. Serum Lipopolysaccharide-binding Protein Levels and the Incidence of Metabolic Syndrome in a General Japanese Population: the Hisayama Study. J Epidemiol 2024; 34:1-7. [PMID: 36567128 PMCID: PMC10701254 DOI: 10.2188/jea.je20220232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The association between chronic lipopolysaccharide exposure and the development of metabolic syndrome (MetS) is unclear. In this study we examined the association between serum lipopolysaccharide-binding protein (LBP) levels, an indicator of lipopolysaccharide exposure, and the development of MetS in a general Japanese population. METHODS 1,869 community-dwelling Japanese individuals aged ≥40 years without MetS at baseline examination in 2002-2003 were followed up by repeated examination in 2007-2008. MetS was defined according to the Japanese criteria. Serum LBP levels were classified into quartiles (quartiles 1-4: 2.20-9.56, 9.57-10.78, 10.79-12.18, and 12.19-24.34 µg/mL, respectively). Odds ratios (ORs) for developing MetS were calculated using a logistic regression model. RESULTS At the follow-up survey, 159 participants had developed MetS. Higher serum LBP levels were associated with greater risk of developing MetS after multivariable adjustment for age, sex, smoking, drinking, and exercise habits (OR [95% confidence interval] for quartiles 1-4: 1.00 [reference], 2.92 [1.59-5.37], 3.48 [1.91-6.35], and 3.86 [2.12-7.03], respectively; P for trend <0.001). After additional adjustment for homeostasis model assessment of insulin resistance, this association was attenuated but remained significant (P for trend = 0.007). On the other hand, no significant association was observed after additional adjustment for serum high-sensitivity C-reactive protein (P for trend = 0.07). CONCLUSION In the general Japanese population, our findings suggest that higher serum LBP levels are associated with elevated risk of developing MetS. Low-grade endotoxemia could play a role in the development of MetS through systemic chronic inflammation and insulin resistance.
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Affiliation(s)
- Shoko Tomooka
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of General Dentistry, Graduate School of Dental Sciences, Kyushu University, Fukuoka, Japan
| | - Emi Oishi
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masako Asada
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoko Sakata
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jun Hata
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Sanmei Chen
- Global Health Nursing, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takanori Honda
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kosuke Suzuki
- Research Institute, Suntory Global Innovation Center Ltd, Kyoto, Japan
| | - Hiroshi Watanabe
- Research Institute, Suntory Global Innovation Center Ltd, Kyoto, Japan
| | - Norihito Murayama
- Research Institute, Suntory Global Innovation Center Ltd, Kyoto, Japan
| | - Naohisa Wada
- Department of General Dentistry, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Fedulovs A, Pahirko L, Jekabsons K, Kunrade L, Valeinis J, Riekstina U, Pīrāgs V, Sokolovska J. Association of Endotoxemia with Low-Grade Inflammation, Metabolic Syndrome and Distinct Response to Lipopolysaccharide in Type 1 Diabetes. Biomedicines 2023; 11:3269. [PMID: 38137490 PMCID: PMC10740930 DOI: 10.3390/biomedicines11123269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 12/24/2023] Open
Abstract
The association of endotoxemia with metabolic syndrome (MS) and low-grade inflammation in type 1 diabetes (T1D) is little-studied. We investigated the levels of lipopolysaccharide (LPS), lipopolysaccharide-binding protein (LBP), endogenous anti-endotoxin core antibodies (EndoCAb IgG and IgM) and high-sensitivity C-reactive protein (hsCRP) in 74 T1D patients with different MS statuses and 33 control subjects. Within the T1D group, 31 patients had MS. These subjects had higher levels of LPS compared to patients without MS (MS 0.42 (0.35-0.56) or no MS 0.34 (0.3-0.4), p = 0.009). MS was associated with LPS/HDL (OR = 6.5 (2.1; 20.0), p = 0.036) and EndoCAb IgM (OR = 0.32 (0.11; 0.93), p = 0.036) in patients with T1D. LBP (β = 0.30 (0.09; 0.51), p = 0.005), EndoCAb IgG (β = 0.29 (0.07; 0.51), p = 0.008) and the LPS/HDL ratio (β = 0.19 (0.03; 0.41, p = 0.084) were significantly associated with log-transformed hsCRP in T1D. Higher levels of hsCRP and EndoCAb IgG were observed in T1D compared to the control (p = 0.002 and p = 0.091, respectively). In contrast to the situation in the control group, LPS did not correlate with LBP, EndoCAb, leukocytes or HDL in T1D. To conclude, endotoxemia is associated with low-grade inflammation, MS and a distinct response to LPS in T1D.
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Affiliation(s)
- Aleksejs Fedulovs
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (A.F.); (K.J.); (L.K.); (U.R.); (V.P.)
| | - Leonora Pahirko
- Faculty of Physics, Mathematics and Optometry, University of Latvia, LV-1004 Riga, Latvia; (L.P.); (J.V.)
| | - Kaspars Jekabsons
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (A.F.); (K.J.); (L.K.); (U.R.); (V.P.)
| | - Liga Kunrade
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (A.F.); (K.J.); (L.K.); (U.R.); (V.P.)
| | - Jānis Valeinis
- Faculty of Physics, Mathematics and Optometry, University of Latvia, LV-1004 Riga, Latvia; (L.P.); (J.V.)
| | - Una Riekstina
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (A.F.); (K.J.); (L.K.); (U.R.); (V.P.)
| | - Valdis Pīrāgs
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (A.F.); (K.J.); (L.K.); (U.R.); (V.P.)
- Pauls Stradins Clinical University Hospital, LV-1002 Riga, Latvia
| | - Jelizaveta Sokolovska
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (A.F.); (K.J.); (L.K.); (U.R.); (V.P.)
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Beletić A, Kuleš J, Rešetar Maslov D, Farkaš V, Rubić I, Beer Ljubić B, Đuričić D, Žubčić D, Samardžija M, Mrljak V. Profiling the alterations of serum proteome in dairy cows with retained placenta using high-throughput tandem mass tags quantitative approach. Vet Q 2023; 43:1-13. [PMID: 36588465 PMCID: PMC9848263 DOI: 10.1080/01652176.2023.2164908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Retained placenta (RP), a quite common disorder in dairy cows, shows a high negative impact on their health status and milk production. AIM To investigate the difference in the serum proteome between the cows with RP and the physiologic puerperium (PP). MATERIAL & METHODS Analysis of serum samples from nine cows with RP and six with PP using high-resolution liquid chromatography-tandem mass spectrometry approach. The proteins differing in the relative abundance between the PP and RP groups were classified using the Protein Analysis Through Evolutionary Relationship tool. For the pathway enrichment analysis, the REACTOME tool, with the human genome as the background, was employed. The criterion for significance was the false discovery rate corrected P-value less than 0.05. RESULTS In total 651 proteins were identified with altered relative abundance of ten proteins. Among them, seven had higher, and three showed lower relative abundance in RP than in the PP group. The differently abundant proteins participated in 15 pathways: six related to hemostasis, three involved in lipoprotein metabolism, and the remaining ones associated with for instance redox homeostasis, post-translational modification, and scavenging. Finally, the validation of the proteomic results showed that haptoglobin and lipopolysaccharide-binding protein levels reliably differentiated between the RP and PP groups. CONCLUSION The pattern of serum proteome alterations in the cows with RP mirrored several interplaying mechanisms underlying the systematic response to the presence of RP, therefore representing a source to mine for predictive or prognostic biomarkers.
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Affiliation(s)
- Anđelo Beletić
- Laboratory of proteomics, Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia,CONTACT Anđelo Beletić Laboratory of Proteomics, Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Josipa Kuleš
- Department of Chemistry and Biochemistry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Dina Rešetar Maslov
- Laboratory of proteomics, Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Vladimir Farkaš
- Laboratory of proteomics, Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivana Rubić
- Laboratory of proteomics, Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Blanka Beer Ljubić
- Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | | | - Damir Žubčić
- Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Marko Samardžija
- Reproduction and Obstetrics Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Vladimir Mrljak
- Laboratory of proteomics, Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia,Internal Diseases Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
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Silvano A, Niccolai E, Baldi S, Seravalli V, Strambi N, Nannini G, Pallecchi M, Bartolucci G, Parenti A, Amedei A, Di Tommaso M. Exploring Plasma-Level Gut Microbiota Mediators and Pro-Inflammatory Markers in Pregnant Women with Short Cervix and Gestational Diabetes Mellitus. Int J Mol Sci 2023; 24:13653. [PMID: 37686463 PMCID: PMC10487736 DOI: 10.3390/ijms241713653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/28/2023] [Accepted: 09/02/2023] [Indexed: 09/10/2023] Open
Abstract
The composition of the gut microbiota (GM) undergoes significant changes during pregnancy, influenced by metabolic status, energy homeostasis, fat storage, and hormonal and immunological modifications. Moreover, dysbiosis during pregnancy has been associated with preterm birth, which is influenced by factors such as cervical shortening, infection, inflammation, and oxidative stress. However, dysbiosis also affects the levels of lipopolysaccharide-binding protein (LBP), short-chain fatty acids (SCFAs), and free fatty acids (FFA) in other tissues and the bloodstream. In this study, we investigated the plasmatic levels of some pro-inflammatory cytokines, such as matrix metalloproteinases-8 (MMP-8), interleukin-8 (IL-8), heat shock protein 70 (Hsp70), and microbial markers in pregnant women with a short cervix (≤25 mm) compared to those with normal cervical length (>25 mm). We examined the differences in the concentration of these markers between the two groups, also assessing the impact of gestational diabetes mellitus. Understanding the relationship between GM dysbiosis, inflammatory mediators, and cervical changes during pregnancy may contribute to the identification of potential biomarkers and therapeutic targets for the prevention and management of adverse pregnancy outcomes, including preterm birth.
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Affiliation(s)
- Angela Silvano
- Department of Health Sciences, Division of Obstetrics and Gynecology, Careggi Hospital, University of Florence, 50139 Florence, Italy; (A.S.); (V.S.); (N.S.)
| | - Elena Niccolai
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (E.N.); (S.B.); (G.N.); (A.A.)
| | - Simone Baldi
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (E.N.); (S.B.); (G.N.); (A.A.)
| | - Viola Seravalli
- Department of Health Sciences, Division of Obstetrics and Gynecology, Careggi Hospital, University of Florence, 50139 Florence, Italy; (A.S.); (V.S.); (N.S.)
| | - Noemi Strambi
- Department of Health Sciences, Division of Obstetrics and Gynecology, Careggi Hospital, University of Florence, 50139 Florence, Italy; (A.S.); (V.S.); (N.S.)
| | - Giulia Nannini
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (E.N.); (S.B.); (G.N.); (A.A.)
| | - Marco Pallecchi
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, 50019 Sesto Fiorentino, Italy; (M.P.); (G.B.)
| | - Gianluca Bartolucci
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, 50019 Sesto Fiorentino, Italy; (M.P.); (G.B.)
| | - Astrid Parenti
- Department of Health Sciences, Clinical Pharmacology and Oncology Section, University of Florence, 50139 Florence, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (E.N.); (S.B.); (G.N.); (A.A.)
| | - Mariarosaria Di Tommaso
- Department of Health Sciences, Division of Obstetrics and Gynecology, Careggi Hospital, University of Florence, 50139 Florence, Italy; (A.S.); (V.S.); (N.S.)
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Chen WW, Zhang H, Chen Y, Zeng WH, Li ZQ. Combined use of lipopolysaccharide-binding protein dsRNA and Gram-negative bacteria for pest management of Coptotermes formosanus. Pest Manag Sci 2023; 79:2299-2310. [PMID: 36775842 DOI: 10.1002/ps.7405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 02/04/2023] [Accepted: 02/12/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND RNA interference (RNAi) technology is an environmentally friendly strategy for controlling insect pests. Lipopolysaccharide-binding protein (LBP) recognizes lipopolysaccharides, which are a major outer membrane constituent of Gram-negative bacteria. We propose that the LBP gene is a potential target for termite management; however, to date, no studies have examined this gene in termites. RESULTS In this study, we cloned the LBP gene of Coptotermes formosanus (Cf) and found that the mortality rate of termite workers significantly increased, and the repellence of these workers to Gram-negative bacteria was suppressed after knockdown of CfLBP using double-stranded RNA (dsRNA) injection and feeding. Moreover, the mortality rate of termite workers fed with CfLBP dsRNA and three Gram-negative bacteria (provided separately) was over 50%, which was much higher than that of termites treated with either CfLBP dsRNA or Gram-negative bacteria. Finally, we found that CfLBP impacts the IMD pathway to regulate the immune response of C. formosanus to Gram-negative bacteria. CONCLUSION CfLBP plays a important role in the immune defense of termites against Gram-negative bacteria. It can be used as an immunosuppressant for RNAi-based termite management and is an ideal target for termite control based on the combined use of RNAi and pathogenic bacteria. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Wei-Wen Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China
| | - Hong Zhang
- State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yong Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China
| | - Wen-Hui Zeng
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China
| | - Zhi-Qiang Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China
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Fang M, Li Y, Liao Z, Wang G, Cao Q, Li Y, Duan Y, Han Y, Deng X, Wu F, Kamau PM, Lu Q, Lai R. Lipopolysaccharide-binding protein expression is increased by stress and inhibits monoamine synthesis to promote depressive symptoms. Immunity 2023; 56:620-634.e11. [PMID: 36854305 DOI: 10.1016/j.immuni.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 09/11/2022] [Accepted: 02/01/2023] [Indexed: 03/02/2023]
Abstract
Monoamine insufficiency is suggested to be associated with depressive features such as sadness, anhedonia, insomnia, and cognitive dysfunction, but the mechanisms that cause it are unclear. We found that the acute-phase protein lipopolysaccharide-binding protein (LBP) inhibits monoamine biosynthesis by acting as an endogenous inhibitor of dopamine-β-hydroxylase (DBH) and aromatic-L-amino-acid-decarboxylase (DDC). LBP expression was increased in individuals with depression and by diverse stress challenges in mice. LBP antibodies and LBP knockdown inhibited monoamine insufficiency and depression-like features in mice, which worsened with LBP overexpression or administration. Monoamine insufficiency and depression-like symptoms were not induced by stressful stimuli in LBP-deficient mice, further highlighting a role for LBP in stress-induced depression, and a peptide we designed that blocks LBP-DBH and LBP-DDC interactions showed anti-depression effects in mice. This study reveals an important role for LBP in regulating monoamine biosynthesis and suggests that targeting LBP may have potential as a treatment for some individuals with depression.
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Affiliation(s)
- Mingqian Fang
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yu Li
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; College of Life Science, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Zhiyi Liao
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gan Wang
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Qiqi Cao
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Ya Li
- First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yong Duan
- First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Yanbing Han
- First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Xinyi Deng
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Feilong Wu
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peter Muiruri Kamau
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiumin Lu
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Ren Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms and Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Institute, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.
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Hasegawa Y, Pei R, Raghuvanshi R, Liu Z, Bolling BW. Yogurt Supplementation Attenuates Insulin Resistance in Obese Mice by Reducing Metabolic Endotoxemia and Inflammation. J Nutr 2023; 153:703-712. [PMID: 36774230 DOI: 10.1016/j.tjnut.2023.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Inflammation is an underlying mechanism for the development of obesity-related health complications. Yogurt consumption inhibits obesity-associated inflammation, but the tissue-specific mechanisms have not been adequately described. OBJECTIVES We aimed to determine the tissue-specific responses by which yogurt supplementation inhibits inflammation. METHODS C57BL/6 male mice (5 wk old) were fed a Teklad Global 14% Protein Rodent Maintenance diet as a control or a high-fat diet (60% calories from fat) to induce obesity for 11 wk, followed by feeding a Western diet (WD; 43% carbohydrate and 42% fat) or WD supplemented with 5.6% lyophilized yogurt powder for 3 wk to test for the impact of yogurt supplementation. Markers of metabolic endotoxemia and inflammation were assessed in plasma and tissues. Cecal and fecal microbiota were profiled by 16S rRNA sequencing. RESULTS In obese mice, relative to the WD control group, yogurt supplementation attenuated HOMA-IR by 57% (P = 0.020), plasma TNF-α by 31% (P < 0.05) and colonic IFN-γ by 46% (P = 0.0034), which were accompanied by a 40% reduction in plasma LPS binding protein (LBP) (P = 0.0019) and 45% less colonic Lbp expression (P = 0.037), as well as alteration in the beta diversity of cecal microbiota (P = 0.0090) and relative abundance of certain cecal microbes (e.g., Lachnospiraceae Dorea longicatena with P = 0.049). There were no differences in the LBP, Lbp, and Cd14 levels in the liver and small intestine between obese mice with and without yogurt supplementation (P > 0.05). CONCLUSIONS Yogurt consumption inhibits obesity-induced inflammation in mice by modulating colonic endotoxin detoxification, changing the gut microbiota, and improving glucose metabolism. This work helps to establish the underlying mechanisms by which yogurt consumption affects markers of metabolic and immune health.
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Affiliation(s)
- Yu Hasegawa
- Department of Food Science, University of Wisconsin-Madison, Madison, WI, USA
| | - Ruisong Pei
- Department of Food Science, University of Wisconsin-Madison, Madison, WI, USA
| | - Ruma Raghuvanshi
- Department of Food Science, University of Wisconsin-Madison, Madison, WI, USA
| | - Zhenhua Liu
- School of Public Health & Health Science, University of Massachusetts-Amherst, Amherst, MA, USA
| | - Bradley W Bolling
- Department of Food Science, University of Wisconsin-Madison, Madison, WI, USA.
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Fuke N, Yamashita T, Shimizu S, Matsumoto M, Sawada K, Jung S, Tokuda I, Misawa M, Suzuki S, Ushida Y, Mikami T, Itoh K, Suganuma H. Association of Plasma Lipopolysaccharide-Binding Protein Concentration with Dietary Factors, Gut Microbiota, and Health Status in the Japanese General Adult Population: A Cross-Sectional Study. Metabolites 2023; 13:metabo13020250. [PMID: 36837869 PMCID: PMC9965710 DOI: 10.3390/metabo13020250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
The influx of intestinal bacteria-derived lipopolysaccharide (LPS) into the blood has attracted attention as a cause of diseases. The aim of this study is investigating the associations between the influx of LPS, dietary factors, gut microbiota, and health status in the general adult population. Food/nutrient intake, gut microbiota, health status and plasma LPS-binding protein (LBP; LPS exposure indicator) were measured in 896 residents (58.1% female, mean age 54.7 years) of the rural Iwaki district of Japan, and each correlation was analyzed. As the results, plasma LBP concentration correlated with physical (right/left arms' muscle mass [β = -0.02, -0.03]), renal (plasma renin activity [β = 0.27], urine albumin creatinine ratio [β = 0.50]), adrenal cortical (cortisol [β = 0.14]), and thyroid function (free thyroxine [β = 0.05]), iron metabolism (serum iron [β = -0.14]), and markers of lifestyle-related diseases (all Qs < 0.20). Plasma LBP concentration were mainly negatively correlated with vegetables/their nutrients intake (all βs ≤ -0.004, Qs < 0.20). Plasma LBP concentration was positively correlated with the proportion of Prevotella (β = 0.32), Megamonas (β = 0.56), and Streptococcus (β = 0.65); and negatively correlated with Roseburia (β = -0.57) (all Qs < 0.20). Dietary factors correlated with plasma LBP concentration correlated with positively (all βs ≥ 0.07) or negatively (all βs ≤ -0.07) the proportion of these bacteria (all Qs < 0.20). Our results suggested that plasma LBP concentration in the Japanese general adult population was associated with various health issues, and that dietary habit was associated with plasma LBP concentration in relation to the intestinal bacteria.
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Affiliation(s)
- Nobuo Fuke
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
- Correspondence: ; Tel.: +81-80-1573-5815
| | - Takahiro Yamashita
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Sunao Shimizu
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Mai Matsumoto
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Kaori Sawada
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Songee Jung
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
- Department of Digital Nutrition and Health Sciences, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Itoyo Tokuda
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Mina Misawa
- Center of Innovation Research Initiatives Organization, Hirosaki University, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Shigenori Suzuki
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Yusuke Ushida
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Ken Itoh
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
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10
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Lin TY, Chang YK, Wu MY, Wu TK, Chen CH, Lim PS. Serum Lipopolysaccharide-Binding Protein Levels and Cardiovascular Events in Hemodialysis Patients: A Prospective Cohort Study. Nephrology (Carlton) 2022; 27:877-885. [PMID: 36045565 DOI: 10.1111/nep.14107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/23/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Patients with end-stage kidney disease (ESKD) exhibit an elevated cardiovascular risk. Chronic inflammation is one of the main mechanisms of cardiovascular disease (CVD). Lipopolysaccharide has been proposed as a link between systemic inflammation and CVD. Herein, we evaluated whether lipopolysaccharide-binding protein (LBP), a surrogate marker of lipopolysaccharide and consequent inflammation, is associated with cardiovascular events in ESKD. METHODS We performed a prospective cohort study of maintenance hemodialysis patients. Baseline serum LBP levels were categorized into tertiles and also modeled continuously for analyses. Cox regression methods were used to evaluate the association of serum LBP levels with cardiovascular events. RESULTS A total of 360 hemodialysis patients were included in this analysis. During a median follow-up of 3.1 years, 90 (25.0%) patients had cardiovascular events. Patients in the upper tertile of serum LBP levels had a significantly greater risk of cardiovascular events (hazard ratio [HR] 4.87; 95% confidence intervals [CI], 2.12-11.15) than those in the lower tertile, independent of age, sex, hypertension, diabetes, CVD, dialysis vintage, body mass index, non-high-density lipoprotein cholesterol, albumin, phosphorus, high-sensitivity C-reactive protein, and interleukin-6. The association was consistent regardless of whether competing risk of death was accounted for (subdistribution HR 4.87; 95% CI, 1.96-12.11 for upper versus lower tertiles) or serum LBP was analysed as a continuous variable (HR 1.30; 95% CI, 1.02-1.66 per 1 SD increment). CONCLUSIONS Serum LBP levels were independently associated with cardiovascular events in heomodialysis patients. LBP might serve as a novel biomarker for CVD in ESKD.
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Affiliation(s)
- Ting-Yun Lin
- Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Yu-Kang Chang
- Department of Medical Research, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan.,Department of Nursing, Jenteh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Ming-Yin Wu
- Division of Renal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Tsai-Kun Wu
- Department of Nursing, Jenteh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan.,Division of Renal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Chang-Hsu Chen
- Department of Nursing, Jenteh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan.,Division of Renal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Paik-Seong Lim
- Division of Renal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan.,Institute of Biomedical Science, College of Life Science, National Chung Hsing University, Taichung, Taiwan
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Hasebe K, Mohebbi M, Gray L, Walker AJ, Bortolasci CC, Turner A, Berk M, Walder K, Maes M, Kanchanatawan B, Ashton MM, Berk L, Ng CH, Malhi GS, Singh AB, Dean OM. Exploring interleukin-6, lipopolysaccharide-binding protein and brain-derived neurotrophic factor following 12 weeks of adjunctive minocycline treatment for depression. Acta Neuropsychiatr 2022; 34:220-7. [PMID: 34937590 DOI: 10.1017/neu.2021.44] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This study aimed to explore effects of adjunctive minocycline treatment on inflammatory and neurogenesis markers in major depressive disorder (MDD). Serum samples were collected from a randomised, placebo-controlled 12-week clinical trial of minocycline (200 mg/day, added to treatment as usual) for adults (n = 71) experiencing MDD to determine changes in interleukin-6 (IL-6), lipopolysaccharide binding protein (LBP) and brain derived neurotrophic factor (BDNF). General Estimate Equation modelling explored moderation effects of baseline markers and exploratory analyses investigated associations between markers and clinical outcomes. There was no difference between adjunctive minocycline or placebo groups at baseline or week 12 in the levels of IL-6 (week 12; placebo 2.06 ± 1.35 pg/ml; minocycline 1.77 ± 0.79 pg/ml; p = 0.317), LBP (week 12; placebo 3.74 ± 0.95 µg/ml; minocycline 3.93 ± 1.33 µg/ml; p = 0.525) or BDNF (week 12; placebo 24.28 ± 6.69 ng/ml; minocycline 26.56 ± 5.45 ng/ml; p = 0.161). Higher IL-6 levels at baseline were a predictor of greater clinical improvement. Exploratory analyses suggested that the change in IL-6 levels were significantly associated with anxiety symptoms (HAMA; p = 0.021) and quality of life (Q-LES-Q-SF; p = 0.023) scale scores. No other clinical outcomes were shown to have this mediation effect, nor did the other markers (LBP or BDNF) moderate clinical outcomes. There were no overall changes in IL-6, LBP or BDNF following adjunctive minocycline treatment. Exploratory analyses suggest a potential role of IL-6 on mediating anxiety symptoms with MDD. Future trials may consider enrichment of recruitment by identifying several markers or a panel of factors to better represent an inflammatory phenotype in MDD with larger sample size.
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12
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Wickramasinghe HKJP, Kaya CA, Baumgard LH, Appuhamy JADRN. Early step-down weaning of dairy calves from a high milk volume with glutamine supplementation. J Dairy Sci 2022; 105:1186-1198. [PMID: 34998555 DOI: 10.3168/jds.2021-21009] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/15/2021] [Indexed: 12/12/2022]
Abstract
Weaning dairy calves from a high milk volume (≥8.0 kg/d) can negatively affect the growth and welfare even if it is performed in a step-down manner. Supplementation of Gln improved gut development of preweaning calves and mitigated weaning stresses of piglets to extents achieved with antibiotics. The study objective was to examine the effect of initiating a step-down weaning scheme with a Gln supplement at an early age on calf starter intake (CSI), average daily gain (ADG), and paracellular permeability of the intestinal epithelium of calves fed a high volume of milk (9.0 kg/d). Thirty-six Holstein heifer calves were assigned to 3 treatments (n = 12) as follows: (1) initiating weaning at 49 d of age (LW), (2) initiating weaning at 35 d of age (EW), and (3) initiating weaning at 35 d with a Gln supplement (2.0% of dry matter intake) from 28 to 42 d of age (EWG). Calves were fed 9.0 kg/d of whole milk until weaning was initiated by abruptly decreasing the milk volume to 3.0 kg/d. Weaning was completed once calves achieved ≥1.0 kg/d of CSI. The paracellular permeability of the intestinal epithelium was assessed with lactulose-to-mannitol ratio (LMR) in the blood on 1 d before, and 3 and 7 d after the initiation of weaning. The blood was analyzed for haptoglobin, lipopolysaccharide-binding protein (LBP), and metabolites including AA. The CSI increased once milk volume was restricted in all treatments. The CSI of LW was greater than that of EW and EWG during the first week of weaning. The LW, EW, and EWG took 11, 19, and 16 d to achieve ≥1.0 kg/d of CSI and were weaned at 60, 54, and 51 d of age, respectively. The body weight (BW) of LW, EW, and EWG at the initiation of weaning were 68.2, 58.7, and 59.5 kg, respectively. Both LW and EWG achieved similar ADG, but ADG of EW was lower than LW during the first week of weaning. All calves had similar ADG during the second week of weaning. The BW of LW, EW, and EWG at weaning were 74.8, 66.5, and 66.4 kg, representing a 2.0, 1.8, and 1.8-fold increase in birth weight, respectively. All calves had similar BW of 88.6 and 164.3 kg at 10 and 20 wk of age, respectively. Regardless of the age, serum haptoglobin and plasma LBP concentrations increased on d 3 and returned to baseline concentrations on d 7 during weaning. The EW had a lower plasma LBP concentration than LW and EWG on d 3 during weaning. The LMR was similar between treatments on d 3 but increased by 44% for EW and LW on d 7, whereas the LMR of EWG remained unchanged during weaning. The postprandial serum concentration of Gln, Met, Trp, and β-hydroxybutyrate were greater for EWG than EW during weaning. Beginning step-down weaning at 35 d with a Gln supplement can help maintain the gut barrier function and wean dairy calves with a satisfactory CSI at 7 wk of age without affecting postweaning growth.
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Affiliation(s)
| | - C A Kaya
- Department of Livestock and Crop Production, Dicle University, Diyarbakir 21280, Turkey
| | - L H Baumgard
- Department of Animal Science, Iowa State University, Ames 50011
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13
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Fukumori R, Ikeno R, Izumi K, Doi K, Otsuka M, Suzuki K, Oikawa S. The effect of sodium butyrate supplementation on ruminal and fecal pH and serum lipopolysaccharide-binding protein after ruminal acidosis challenge in nonlactating cows. Anim Sci J 2021; 92:e13673. [PMID: 34951079 DOI: 10.1111/asj.13673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 09/27/2021] [Accepted: 11/22/2021] [Indexed: 11/30/2022]
Abstract
The objective of this study was to evaluate effects of sodium-butyrate supplementation on gastrointestinal function and the inflammatory response to ruminal acidosis (RA) challenge in cows. Four nonlactating cows with a rumen cannula were assigned to two treatments in a crossover design. Treatments were ruminal administration of sodium-butyrate (BUT) or control (CON). Sodium-butyrate was provided as Gustor BP70 and administered at a butyrate dose of 0.04% per kg body weight. The CON premix was made by replacing sodium-butyrate with wheat bran. Experimental periods were 28 days long with 21-day washout period separating the treatments. On Day 25 of each period, corn starch was ruminally administered at 0.7% per kg body weight as RA challenge. After RA challenge, ruminal pH was lower, and endotoxin concentration was higher for cows provided with BUT than those with CON, but the increase in fecal starch and the decrease in fecal pH were attenuated by BUT. The effect of butyrate supplementation on serum lipopolysaccharide-binding protein after RA challenge was not found. From these findings, butyrate supplementation mitigated rectal acidosis by reducing the flux of fermentable carbohydrate into the large intestine. An anti-inflammatory effect of butyrate was not observed, possibly due to lower pH and higher endotoxin concentration in the rumen.
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Affiliation(s)
- Rika Fukumori
- Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Rina Ikeno
- Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Kenichi Izumi
- Department of Sutainable Agricultrure, College of Agriculture, Food and Environment Sciences, Rakuno Gakuen University, Ebetsu, Japan
| | - Kazuya Doi
- Department of Sutainable Agricultrure, College of Agriculture, Food and Environment Sciences, Rakuno Gakuen University, Ebetsu, Japan
| | - Marina Otsuka
- Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Kazuyuki Suzuki
- Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Shin Oikawa
- Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
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Atwater AQ, Immergluck LC, Davidson AJ, Castanon-Cervantes O. Shift Work Predicts Increases in Lipopolysaccharide-Binding Protein, Interleukin-10, and Leukocyte Counts in a Cross-Sectional Study of Healthy Volunteers Carrying Low-Grade Systemic Inflammation. Int J Environ Res Public Health 2021; 18:ijerph182413158. [PMID: 34948768 PMCID: PMC8701724 DOI: 10.3390/ijerph182413158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 12/30/2022]
Abstract
The disruption of inflammatory responses is a potential mechanism behind the harmful effects of shift work and is associated with increased risk of hypertension, stroke, obesity, diabetes, and cancer. These responses are linked to the proliferation of leukocytes in shift workers, suggesting a systemic signal as a potential mediator. The purpose of this study was to assess the relationship between systemic inflammation, leukocyte counts, and systemic endotoxemia in samples from a diverse cohort of day workers and shift workers. Participants (normothermic and normotensive) were healthy volunteers, non-smoking, and drug- and medication-free. The following outcomes were measured: C-reactive protein, TNF-α, IL-6, IL-1β, IL-10, leukocyte counts (monocytes, lymphocytes, and neutrophils), and lipopolysaccharide-binding protein (LBP). Risk factors that increase systemic inflammation, such as blood pressure, sleep loss, and cortisol, were also assessed. The results indicated that shift workers slept significantly less than day workers and had significantly increased concentrations of all of the cytokines measured as well as plasma cortisol. Regression models found that after controlling for covariates, shift-work exposure predicted the significant increase observed in IL-10, leukocyte counts, and LBP. Our results suggest that acute increases in low-grade systemic endotoxemia are unresolved during chronic shift-work exposure. This ongoing immune challenge may underlie the disrupted inflammatory responses characteristic of shift-work-related pathologies. Systemic endotoxemia may represent a novel target to investigate the early effects of exposure to shift-work schedules.
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Affiliation(s)
- Aisha Q. Atwater
- Department of Neurobiology and Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA; (A.Q.A.); (A.J.D.)
| | - Lilly Cheng Immergluck
- Department of Microbiology, Biochemistry & Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA;
- Pediatric Clinical & Translational Research Unit, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Alec J. Davidson
- Department of Neurobiology and Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA; (A.Q.A.); (A.J.D.)
| | - Oscar Castanon-Cervantes
- Department of Neurobiology and Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA; (A.Q.A.); (A.J.D.)
- Correspondence:
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15
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Ferreira S, Masi J, Giménez V, Carpinelli MM, Laterza O, Hermoso M, Ortiz-Villalba J, Chamorro ME, Langjahr P. Effect of gluten-free diet on levels of soluble CD14 and lipopolysaccharide-binding protein in adult patients with celiac disease. Cent Eur J Immunol 2021; 46:225-30. [PMID: 34764791 DOI: 10.5114/ceji.2021.107012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/10/2020] [Indexed: 02/05/2023] Open
Abstract
Introduction Celiac disease (CD) is an autoimmune enteropathy triggered by gluten ingestion in genetically susceptible individuals. In CD, activation of the immune response causes damage of the intestinal mucosa, and a gluten-free diet (GFD) is the only available therapy. Intestinal damage can lead to an increase in the circulation of components of bacteria from the intestinal lumen, such as lipopolysaccharide (LPS). Soluble CD14 (sCD14) and lipopolysaccharide-binding protein (LBP) participate in the recognition of LPS, and their levels are altered in different pathologies. In the present study, the circulating levels of sCD14 and LBP from untreated CD patients were evaluated and compared to CD patients on a GFD and controls. Material and methods In total seventy-two adult patients with CD, twenty-three untreated CD patients and forty-nine on a GFD were included. In addition, fifty-five healthy individuals were included as controls. Additionally, the effect of LPS on sCD14 production by both normal and inflamed intestinal tissue culture was explored. Results Serum levels of sCD14 were found to be significantly increased in untreated CD patients compared to patients on a GFD and controls. In addition, we found that LPS induced the production of sCD14 by biopsies of intestinal tissue from untreated CD patients. Conclusions The data from this study show that circulating levels of sCD14 are increased in the untreated CD patients compared to patients on a GFD. Our data show that LPS induces the production of sCD14 by the intestinal tissue from untreated CD patients.
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16
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Turgunov Y, Ogizbayeva A, Akhmaltdinova L, Shakeyev K. Lipopolysaccharide-binding protein as a risk factor for development of infectious and inflammatory postsurgical complications in colorectal cancer paients. Contemp Oncol (Pozn) 2021; 25:198-203. [PMID: 34729040 DOI: 10.5114/wo.2021.110051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/19/2021] [Indexed: 12/20/2022] Open
Abstract
Aim of the study In this pilot study lipopolysaccharide-binding protein (LBP) levels were assessed as a possible risk factor for development of systemic inflammatory response syndrome (SIRS) and infectious and inflammatory complications in colorectal cancer (CRC) patients after surgery. Material and methods For LBP determination venous blood was taken 1 hour before the surgery and 72 hours after it. All patients were stratified by the presence or absence of acute bowel obstruction (ABO), SIRS and complications. Results 36 patients with CRC participated in the study. The LBP level before surgery was 879.8 ± 221.8 ng/ml (interquartile range (IQR) 749.3-1028.8); on the 3rd day it was 766.5 ± 159.4 ng/ml (IQR 669.5-847.6), which was a statistically significant decrease (p = 0.004). A decrease in LBP level by more than 280 ng/ml increases the probability of SIRS and complications in operated CRC patients (OR 6.6, 95% CI: 1.1-40.9 and OR 12.0, 95% CI: 1.8-80.4, respectively). In patients with ABO in the presence of SIRS, the LBP value decreased more than in those without SIRS (p = 0.046). Conclusions This study demonstrated that the LBP level in the operated CRC patients tends to decrease on the 3rd day after surgery. A bigger decrease in LBP level increases the probability of SIRS and postoperative infectious and inflammatory complications. Therefore, further studies with larger numbers of patients are required.
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Himoto T, Yamamoto S, Morimoto K, Tada S, Mimura S, Fujita K, Tani J, Morishita A, Masaki T. Clinical impact of antibodies to Sp100 on a bacterial infection in patients with primary biliary cholangitis. J Clin Lab Anal 2021; 35:e24040. [PMID: 34623692 PMCID: PMC8605154 DOI: 10.1002/jcla.24040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/26/2021] [Accepted: 09/23/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND A specific antinuclear antibody for primary biliary cholangitis (PBC) is anti-Sp100, which was recognized as a serological marker of concurrent urinary tract infection. We sought to determine the clinical characteristics of PBC patients who had anti-Sp100. PATIENTS AND METHODS Fifty-one patients with PBC and 10 healthy controls (HCs) were enrolled. Anti-Sp100 were determined with an ELISA method. Lipopolysaccharide-binding protein (LBP) was measured as a serological hallmark for bacterial infection. The correlations of anti-Sp100 with demographic, laboratory, and pathological parameters were investigated. RESULTS Six of the 51 (11.8%) PBC patients had anti-Sp100, whereas none of the HCs did. There was no significant difference in the frequency of antimitochondrial antibodies (AMAs) between PBC patients with and without anti-Sp100 (67% vs. 82%, p = 0.5839). Biochemical and immunological parameters were not associated with the emergence of anti-Sp100 in these patients. The clinical stage by Scheuer classification was not correlated with the existence of anti-Sp100. No significant difference in the serum LBP levels was found between PBC patients with and without anti-Sp-100, although serum LBP levels were significantly higher in PBC patients with anti-Sp100 than in HCs (8.30 ± 2.24 ng/ml, vs. 5.12 ± 2.48 ng/ml, p = 0.0022). The frequency of granuloma formation was higher in the liver specimens of PBC patients with anti-Sp100 than in those without anti-Sp100 (67% vs 29%, p = 0.0710). CONCLUSION anti-Sp100 does not become a complementary serological marker for PBC in AMA-negative patients. A bacterial infection may trigger the production of anti-Sp100. Another factor is required to initiate the autoantibody production.
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Affiliation(s)
- Takashi Himoto
- Department of Medical TechnologyKagawa Prefectural University of Health SciencesTakamatsuJapan
| | - Shuhei Yamamoto
- Department of Medical TechnologyKagawa Prefectural University of Health SciencesTakamatsuJapan
| | - Kaho Morimoto
- Department of Medical TechnologyKagawa Prefectural University of Health SciencesTakamatsuJapan
| | - Satoshi Tada
- Department of Medical TechnologyKagawa Prefectural University of Health SciencesTakamatsuJapan
| | - Shima Mimura
- Department of Gastroenterology and NeurologyKagawa University School of MedicineTakamatsuJapan
| | - Koji Fujita
- Department of Gastroenterology and NeurologyKagawa University School of MedicineTakamatsuJapan
| | - Joji Tani
- Department of Gastroenterology and NeurologyKagawa University School of MedicineTakamatsuJapan
| | - Asahiro Morishita
- Department of Gastroenterology and NeurologyKagawa University School of MedicineTakamatsuJapan
| | - Tsutomu Masaki
- Department of Gastroenterology and NeurologyKagawa University School of MedicineTakamatsuJapan
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18
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Losanto J, Langjahr P, Barrios G, Paats A, Acosta de Hetter ME, de Guillén I, Duarte M, Acosta-Colman I, Cervera R. Relationship between serum lipopolysaccharide binding protein levels, disease activity, and clinical characteristics in Paraguayan patients with systemic lupus erythematosus. Lupus 2021; 30:2089-2094. [PMID: 34693812 DOI: 10.1177/09612033211050321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Systemic exposure to bacterial components like lipopolysaccharide (LPS) is among the non-genetic factors that could be involved in the onset or progression of systemic lupus erythematosus (SLE). Lipopolysaccharide-binding protein (LBP) participates in the recognition of LPS and in the inflammatory response. Here, we investigated LBP in SLE patients and its relationship with disease activity and SLE phenotypes. METHODS Eighty-one adult patients with SLE from IMID-PY biobank (Paraguay) were included in the study. The clinical and laboratory variables were used to determine SLE activity. LBP levels were determined by ELISA in SLE patients and age- and sex-matched population-based controls. RESULTS Patients with SLE have lower levels of circulating LBP compared to healthy controls (p = 0.0007). No significant correlation was found between serum LBP levels and disease activity. A significant difference was observed in LBP levels with regard to the presence of arthritis (p = 0.026). No other relation was found with clinical parameters. CONCLUSIONS We found low levels of LBP in SLE patients compared to the control group. No correlation was detected between LBP levels and disease activity. It would be interesting for future studies to evaluate the impact of low levels of LBP on lupus immunopathogenesis.
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Affiliation(s)
- Jhonatan Losanto
- Department of Rheumatology, Hospital de Clínicas, Facultad de Ciencias Médicas, 332616Universidad Nacional de Asunción, Asuncion, Paraguay
| | - Patricia Langjahr
- Instituto de Investigaciones en Ciencias de la Salud, 187173Universidad Nacional de Asunción, San Lorenzo, Paraguay.,Department of Biotechnology, Facultad de Ciencias Químicas, 187173Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Graciela Barrios
- Instituto de Investigaciones en Ciencias de la Salud, 187173Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Astrid Paats
- Department of Rheumatology, Hospital de Clínicas, Facultad de Ciencias Médicas, 332616Universidad Nacional de Asunción, Asuncion, Paraguay
| | - María E Acosta de Hetter
- Instituto de Investigaciones en Ciencias de la Salud, 187173Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Ivalena de Guillén
- Instituto de Investigaciones en Ciencias de la Salud, 187173Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Margarita Duarte
- Department of Rheumatology, Hospital de Clínicas, Facultad de Ciencias Médicas, 332616Universidad Nacional de Asunción, Asuncion, Paraguay
| | - Isabel Acosta-Colman
- Department of Rheumatology, Hospital de Clínicas, Facultad de Ciencias Médicas, 332616Universidad Nacional de Asunción, Asuncion, Paraguay
| | - Ricard Cervera
- Department of Autoimmune Diseases, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Catalonia, Spain
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19
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Meng L, Song Z, Liu A, Dahmen U, Yang X, Fang H. Effects of Lipopolysaccharide-Binding Protein (LBP) Single Nucleotide Polymorphism (SNP) in Infections, Inflammatory Diseases, Metabolic Disorders and Cancers. Front Immunol 2021; 12:681810. [PMID: 34295331 PMCID: PMC8290185 DOI: 10.3389/fimmu.2021.681810] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/08/2021] [Indexed: 01/11/2023] Open
Abstract
Inflammation, which is induced by the immune response, is recognized as the driving factor in many diseases, including infections and inflammatory diseases, metabolic disorders and cancers. Genetic variations in pivotal genes associated with the immune response, particularly single nucleotide polymorphisms (SNPs), may account for predisposition and clinical outcome of diseases. Lipopolysaccharide (LPS)-binding protein (LBP) functions as an enhancer of the host response to LPS, the main component of the outer membrane of gram-native bacteria. Given the crucial role of LBP in inflammation, we will review the impact of SNPs in the LBP gene on infections and inflammatory diseases, metabolic disorders and cancers.
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Affiliation(s)
- Leilei Meng
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Zichen Song
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Anding Liu
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Uta Dahmen
- Experimental Transplantation Surgery, Department of General, Visceral and Vascular Surgery, Friedrich-Schiller-University Jena, Jena, Germany
| | - Xiao Yang
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haoshu Fang
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
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20
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Yuan X, Chen R, Ouyang Q, Lin X, Ai Z, Zhang Y, Yang X. Novel associations of serum adropin and lipopolysaccharide-binding protein versus lipid profiles in childhood obesity. J Pediatr Endocrinol Metab 2020; 33:265-270. [PMID: 31953997 DOI: 10.1515/jpem-2019-0329] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/15/2019] [Indexed: 12/11/2022]
Abstract
Background The relationship between cytokines and lipid metabolism has garnered attention given their potential metabolic interaction. However, the relationship between adropin and lipopolysaccharide-binding protein (LBP) and obesity-related inflammation has not been reported, as well as their relationship with serum lipid profiles. Objective This study analyzed the association of serum adropin, leptin, LBP levels and lipid profiles in obese children ranging from 5 to 14 years old. Methods Plasma lipid measurements included total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-c) and low-density lipoprotein cholesterol (LDL-c) by standard methods, and serum adropin, leptin and LBP levels was measured by enzyme-linked immunosorbent assay (ELISA). Results One hundred and twenty-four children (9.25 ± 1.59 years) with obesity and 42 controls (8.81 ± 1.94 years) were assessed. Compared with the control group, the serum adropin concentrations in the obesity group were significantly lower, whereas the serum leptin and LBP levels were significantly higher. Pearson's correlation analysis showed that serum adropin levels negatively correlated with TG, waist to hip ratio (WHR) and body mass index (BMI), and positively correlated with HDL-c. Serum LBP levels positively correlated with LDL-c and WHR. After adjusting for LBP, the correlation coefficients of adropin with TG, HDL-c and leptin were more robust. Also, after adjusting for serum LBP, the correlation coefficient of leptin with TG was attenuated, yet remained statistically significant, and the correlation coefficient of leptin with HDL-c was enhanced. Conclusions Children with obesity have decreased serum adropin levels and elevated leptin and LBP levels. Each of the three serum cytokines were associated with lipid metabolism, and this association warrants further study.
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Affiliation(s)
- Xin Yuan
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, Fuzhou, China
| | - Ruimin Chen
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, No. 145, 817 Middle Road, Fuzhou 350005, China
| | - Qian Ouyang
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, Fuzhou, China
| | - Xiangquan Lin
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, Fuzhou, China
| | - Zhuanzhuan Ai
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, Fuzhou, China
| | - Ying Zhang
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, Fuzhou, China
| | - Xiaohong Yang
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Province, Fujian Medical University Teaching Hospital, Fuzhou, China
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21
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Karavaeva TM, Fefelova EM, Maximenya MV, Putneva AS, Fedorenko EV, Tereshkov PP. [Determination of some indicators of immunity and lipoperoxidation in the oral fluid in persons with a low vitamin D level.]. Klin Lab Diagn 2020; 64:753-757. [PMID: 32040900 DOI: 10.18821/0869-2084-2019-64-12-753-757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/30/2019] [Indexed: 11/17/2022]
Abstract
Oral fluid is a unique biological environment, containing a wide range of substances, coming from local and systemic sources, which makes it possible to use it as an object for assessing pathological changes in the body both at the local and systemic levels. In comparison with the traditional method of blood analysis, the advantage of evaluating the parameters of the oral fluid is the non-invasive of this method of obtaining material. All patients underwent oral fluid sampling using special plastic containers with a swab, which facilitate the selection of material, eliminating the penetration of mucin into a clean test sample, which helps to obtain more accurate analysis results. The amount of secretory IgA, lipopolysaccharide-binding protein (LBP), TBA-active products, the level of total antioxidant activity in the oral fluid in individuals with a low level of 25(OH)D before and after taking the native solution of vitamin D "Aqua Trim" were determined. The concentrations of secretory immunoglobulin A, lipopolysaccharide, binding protein and the level of total antioxidant activity are reduced in the oral fluid of people with vitamin D deficiency, but the number of intermediate products of lyoperoxidation increases. The course intake of the native solution of vitamin D (International Nonproprietary Name - Colecalciferol) normalizes the functioning of the immunity of the oral cavity and restores the balance of the "lipid peroxidation-antioxidants" system.
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Affiliation(s)
- T M Karavaeva
- The Chita State Medical Academy Healthcare Ministry of Russia, 672000, Chita, Russia
| | - E M Fefelova
- The Chita State Medical Academy Healthcare Ministry of Russia, 672000, Chita, Russia
| | - M V Maximenya
- The Chita State Medical Academy Healthcare Ministry of Russia, 672000, Chita, Russia
| | - A S Putneva
- The Chita State Medical Academy Healthcare Ministry of Russia, 672000, Chita, Russia
| | - E V Fedorenko
- The Chita State Medical Academy Healthcare Ministry of Russia, 672000, Chita, Russia
| | - P P Tereshkov
- The Chita State Medical Academy Healthcare Ministry of Russia, 672000, Chita, Russia
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22
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Putneva AS, Karavaeva TM, Maximenya MV, Fefelova EV, Borodulina II, Tereshkov PP, Slobodenjuk TF. [Dynamics of immune and biochemical features of oral fluid in persons with caries receiving vitamin D]. Stomatologiia (Mosk) 2020; 99:13-18. [PMID: 33267537 DOI: 10.17116/stomat20209906113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE The aim of the study was to evaluate the content of the vitamin D metabolite (25(OH)D3) in the blood serum, the level of some indicators of the immune and peroxidic status in the oral fluid in people with carious processes of different intensities while taking the native solution of vitamin D (international non-proprietary name Cholecalciferol). MATERIAL AND METHODS The study included 47 people aged 20 to 22 with caries and low levels of 25(OH)D3 in blood serum. The control group consisted of 13 people with DMFT index of 0.00 [0.00; 0.00] and a normal serum content of 25(OH)D3. The amount of antimicrobial peptide cathelicidin LL-37, secretory immunoglobulin A, lipopolysaccharide binding protein (LBP) was determined in the oral fluid using ELISA reagent kits, and the content of intermediate lipid peroxidation products such as malondialdehyde (TBA-active products) and the level of total antioxidant activity were spectrophotometrically evaluated. RESULTS Reduced serum concentrations of 25(OH)D3 were recorded predominantly in individuals with a DMFT index of more than 9.0. In patients with caries, at a concentration of 25(OH)D3 in blood serum below 30 ng/ml, a decrease in the values of secretory immunoglobulin A, lipopolysaccharide-binding protein, cathelicidin, and the level of total antioxidant activity was observed, accompanied by an increase in the number of intermediate products of lyoperoxidation in the oral fluid. The course intake of the native AquaDtrim vitamin D solution (Cholecalciferol) led to normalization of the values of certain immune and biochemical parameters (cathelicidin LL-37, secretory immunoglobulin A, LBP of the oral fluid) and restoration of balance in the system «lipid peroxidation - antioxidants». CONCLUSION The results indicate the advisability of assessing the level of 25(OH)D3 in the body for the diagnosis of pathological processes in the oral cavity and the use of vitamin D preparations in the prevention and complex therapy of carious process.
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Affiliation(s)
- A S Putneva
- Medical Center «XXI Century», St. Petersburg, Russia
| | | | - M V Maximenya
- Military Medical Academy named after S.M. Kirov, St. Petersburg, Russia
| | | | - I I Borodulina
- Military Medical Academy named after S.M. Kirov, St. Petersburg, Russia
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23
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Sato N, Nakamura Y, Yamadera S, Inagaki M, Kenmotsu S, Saito H, Oguchi T, Tsuji M, Chokki H, Ohsawa I, Gotoh H, Iwai S, Kiuchi Y. Linagliptin Inhibits Lipopolysaccharide-Induced Inflammation Concentration-Dependently And -Independently. J Inflamm Res 2019; 12:285-291. [PMID: 31695471 PMCID: PMC6814358 DOI: 10.2147/jir.s221761] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/05/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose Dipeptidyl peptidase-4 inhibitors, including linagliptin, prevent inflammation. However, the in vitro effects of linagliptin are unclear. Moreover, although linagliptin inhibits lipopolysaccharide (LPS)-induced inflammation, the anti-inflammatory effects of linagliptin in this context are not concentration-dependent. In the absence of LPS-binding protein (LBP), the pro-inflammatory effects of LPS involve pathways other than the Toll-like receptor (TLR) 4 pathway. Here, we aimed to determine the anti-inflammatory mechanisms of linagliptin in an experimental model in which LBP was added to the medium. Methods Human U937 monocytes were cultured at 1 × 106 cells/mL in Roswell Park Memorial Institute medium and differentiated into macrophages using phorbol myristate acetate. All processes were carried out in medium containing 10% fetal bovine serum (FBS). After 48 hrs of culture, we replaced the medium and pretreated the cells with 100, 250, 500, or 2500 nM linagliptin for 1 hr. We exchanged the medium again, and the cells were treated with 1 ng/mL LPS with or without 100, 250, 500, or 2500 nM linagliptin. Interleukin (IL)-6 and LBP in the supernatant, nuclear factor (NF)-κB/p65 in the nucleus, and reactive oxygen species (ROS) in the cells, as important markers of the mechanism of inflammation induction by LPS, were measured using enzyme-linked immunosorbent assay kits. Results Linagliptin significantly prevented LPS-stimulated IL-6 production and intranuclear NF-κB/p65 levels in a concentration-dependent manner. LPS-induced intracellular ROS levels were significantly decreased by linagliptin at all concentrations. LBP levels were markedly higher in FBS-containing medium than in medium without FBS. However, LBP levels did not change following administration of linagliptin and/or LPS. Conclusion Concentration-dependent and -independent inflammatory suppression was observed following linagliptin treatment in the context of LPS-induced pro-inflammatory responses. Thus, our findings suggested that linagliptin induced two different mechanisms to repress inflammation, i.e., TLR4-dependent and -independent mechanisms.
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Affiliation(s)
- Naoki Sato
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan.,Department of Research Center, Tanabe Pharmacy Inc., Tokyo, Japan
| | - Yuya Nakamura
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan.,Department of Nephrology, Saiyu Soka Hospital, Soka City, Saitama-ken, Japan
| | - Shiho Yamadera
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
| | - Masahiro Inagaki
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan.,Fuculty of Arts and Sciences at Fujiyoshida, Showa University, Fujiyoshida City, Yamanashi-ken, Japan
| | - Sachiyo Kenmotsu
- Fuculty of Arts and Sciences at Fujiyoshida, Showa University, Fujiyoshida City, Yamanashi-ken, Japan
| | - Hiroshi Saito
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan.,Department of Healthcare and Regulatory Sciences, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
| | - Tatsunori Oguchi
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan
| | - Mayumi Tsuji
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan
| | - Hirokazu Chokki
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan
| | - Isao Ohsawa
- Department of Nephrology, Saiyu Soka Hospital, Soka City, Saitama-ken, Japan
| | - Hiromichi Gotoh
- Department of Nephrology, Saiyu Soka Hospital, Soka City, Saitama-ken, Japan
| | - Shinichi Iwai
- Department of Healthcare and Regulatory Sciences, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
| | - Yuji Kiuchi
- Department of Pharmacology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan
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24
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Smith N, Saunders D, Jensen RL, Towner RA. Association of decreased levels of lipopolysaccharide-binding protein with OKN-007-induced regression of tumor growth in an F98 rat glioma model. J Neurosurg 2019:1-9. [PMID: 31628293 DOI: 10.3171/2019.7.jns182435] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 07/26/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE High-grade gliomas, such as glioblastoma (GBM), are devastating tumors with a very poor prognosis. Previously the authors have found that the nitrone compound OKN-007 (OKlahoma Nitrone 007; or disodium 4-[(tert-butyl-imino) methyl] benzene-1,3-disulfonate N-oxide) is effective against high-grade gliomas in various GBM rodent and human xenograft models. The purpose of the present study was to assess the levels of the lipopolysaccharide-binding protein (LBP) in rodent gliomas treated with OKN-007 as well as determine the expression of LBP in human gliomas. METHODS Microarray analysis was done to assess altered gene expression following OKN-007 administration in an F98 glioma model. An enzyme-linked immunosorbent assay was incorporated to assess LBP levels in glioma tissues, as well as blood serum, comparing results in OKN-007-treated and untreated tumor-bearing animals. Immunohistochemistry was used to assess LBP levels in varying grades of human glioma tissue sections. RESULTS Upon further assessment of gene expression fold changes in F98 gliomas in rats that received or did not receive OKN-007, it was found that the gene for LBP was significantly downregulated by OKN-007. Further investigation was done to see whether levels of LBP were affected by OKN-007 treatment in F98 gliomas. It was found that LBP could be detected not only in glioma tissue but also in blood serum of F98 glioma-bearing rats and that OKN-007 decreased the levels of LBP. It was also found that LBP levels are highly expressed in human high-grade glioma tissues. CONCLUSIONS LBP could potentially be used as a serum diagnostic marker of treatment response in high-grade gliomas.
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Affiliation(s)
- Nataliya Smith
- 1Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma; and
| | - Debra Saunders
- 1Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma; and
| | - Randy L Jensen
- 2Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Rheal A Towner
- 1Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma; and
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25
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Barengolts E, Green SJ, Chlipala GE, Layden BT, Eisenberg Y, Priyadarshini M, Dugas LR. Predictors of Obesity among Gut Microbiota Biomarkers in African American Men with and without Diabetes. Microorganisms 2019; 7:microorganisms7090320. [PMID: 31491976 PMCID: PMC6780321 DOI: 10.3390/microorganisms7090320] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/27/2019] [Accepted: 08/30/2019] [Indexed: 02/06/2023] Open
Abstract
Gut microbiota and their biomarkers may be associated with obesity. This study evaluated associations of body mass index (BMI) with circulating microbiota biomarkers in African American men (AAM) (n = 75). The main outcomes included fecal microbial community structure (16S rRNA), gut permeability biomarkers (ELISA), and short-chain fatty acids (SCFAs, metabolome analysis). These outcomes were compared between obese and non-obese men, after adjusting for age. The results showed that lipopolysaccharide-binding protein (LBP), the ratio of LBP to CD14 (LBP/CD14), and SCFAs (propionic, butyric, isovaleric) were higher in obese (n = 41, age 58 years, BMI 36 kg/m2) versus non-obese (n = 34, age 55 years, BMI 26 kg/m2) men. BMI correlated positively with LBP, LBP/CD14 (p < 0.05 for both) and SCFAs (propionic, butyric, isovaleric, p < 0.01 for all). In the regression analysis, LBP, LBP/CD14, propionic and butyric acids were independent determinants of BMI. The study showed for the first time that selected microbiota biomarkers (LBP, LBP/CD14, propionic and butyric acids) together with several other relevant risks explained 39%–47% of BMI variability, emphasizing that factors other than microbiota-related biomarkers could be important. Further research is needed to provide clinical and mechanistic insight into microbiota biomarkers and their utility for diagnostic and therapeutic purposes.
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Affiliation(s)
- Elena Barengolts
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA.
- Section of Endocrinology, Department of Medicine, Jesse Brown VA Medical Center, Chicago, IL 60612, USA.
| | - Stefan J Green
- Sequencing Core, Research Resources Center, University of Illinois, Chicago, IL 60612, USA
| | - George E Chlipala
- Research Informatics Core, Research Resources Center, University of Illinois, Chicago, IL 60612, USA
| | - Brian T Layden
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
- Section of Endocrinology, Department of Medicine, Jesse Brown VA Medical Center, Chicago, IL 60612, USA
| | - Yuval Eisenberg
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Medha Priyadarshini
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Lara R Dugas
- Department of Public Health Sciences, Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Maywood, IL 60153, USA
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26
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Teer E, Joseph DE, Driescher N, Nell TA, Dominick L, Midgley N, Deshpande G, Page MJ, Pretorius E, Woudberg NJ, Lecour S, Glashoff RH, Essop MF. HIV and cardiovascular diseases risk: exploring the interplay between T-cell activation, coagulation, monocyte subsets, and lipid subclass alterations. Am J Physiol Heart Circ Physiol 2019; 316:H1146-H1157. [PMID: 30768357 DOI: 10.1152/ajpheart.00797.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Although rollout of combined antiretroviral treatment (cART) has blunted human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) onset, there is increased development of cardiovascular diseases (CVDs) in HIV-infected individuals. While most HIV-infected individuals on cART achieve viral suppression, this may not necessarily result in complete immunological recovery. This study therefore evaluated T-cell-mediated changes and coagulation markers in HIV-positive individuals to ascertain their potential to increase CVD risk. Eighty participants were recruited (Worcester, South Africa), and fasted blood was collected to evaluate: 1) immune activation (CD38 expression on CD4+ and CD8+ T cells) and thrombus formation [tissue factor (CD142)] on CD4+ and CD8+ T cells; 2) monocyte subpopulations (nonclassical, intermediate, and classical); and 3) classical regulatory T (Treg) cells with activation markers [glycoprotein A repetitions predominant (GARP) and special AT-rich sequence-binding protein 1 (SATB-1)]. High- and low-density lipoprotein subclasses (Lipoprint) were also determined. This study revealed four key findings for HIV-positive patients: 1) coexpression of the CD142 coagulation marker together with immune activation on both CD4+ and CD8+ T cells during chronic infection stages; 2) Treg cell activation and upregulated GARP and SATB-1 contributing to Treg dysfunction in chronic HIV; 3) proatherogenic monocyte subset expansion with significant correlation between T-cell activation and macrophage activation (marker: CD163); and 4) significant correlation between immune activation and lipid subclasses, revealing crucial changes that can be missed by traditional lipid marker assessments (LDL and HDL). These data also implicate lipopolysaccharide-binding protein as a crucial link between immune activation, lipid alterations, and increased CVD risk. NEW & NOTEWORTHY With combined antiretroviral treatment rollout, HIV-AIDS patients are increasingly associated with cardiovascular diseases onset. This study demonstrated the significant interplay between adaptive immune cell activation and monocyte/macrophage markers in especially HIV-positive individuals with virological failure and on second line treatment. Our data also show a unique link between immune activation and lipid subclass alterations, revealing important changes that can be missed by traditional lipid marker assessments (e.g., LDL and HDL).
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Affiliation(s)
- Eman Teer
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Danzil E Joseph
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Natasha Driescher
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Theo A Nell
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Leanne Dominick
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Natasha Midgley
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Gaurang Deshpande
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Martin J Page
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Etheresia Pretorius
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
| | - Nicholas J Woudberg
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, University of Cape Town , Cape Town , South Africa
| | - Sandrine Lecour
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, University of Cape Town , Cape Town , South Africa
| | - Richard H Glashoff
- Division of Medical Microbiology and Immunology, Department of Pathology, Stellenbosch University and National Health Laboratory Service , Cape Town , South Africa
| | - M Faadiel Essop
- Cardio-Metabolic Research Group, Department of Physiological Sciences, Stellenbosch University , Stellenbosch , South Africa
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Konkol Y, Keskitalo A, Vuorikoski H, Pietilä S, Elo LL, Munukka E, Bernoulli J, Tuomela J. Chronic nonbacterial prostate inflammation in a rat model is associated with changes of gut microbiota that can be modified with a galactoglucomannan-rich hemicellulose extract in the diet. BJU Int 2018; 123:899-908. [PMID: 30256506 DOI: 10.1111/bju.14553] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To investigate dietary effects on the gut microbiota composition in a rat model of nonbacterial chronic prostate inflammation (CPI). MATERIALS AND METHODS Nonbacterial CPI was induced in the Wistar rat strain with subcutaneous testosterone and 17β-oestradiol (E2 ) hormone pellets for 18 weeks. Rats with placebo pellets served as healthy controls. Rats with CPI were stratified into two groups, which drank either plain tap water (control group) or tap water supplemented with 2% galactoglucomannan-rich hemicellulose extract (GGM group) from Norway spruce (Picea abies) for 5 weeks. Faecal samples were collected at the end of the study, total DNA was extracted, and the bacterial composition was analysed by 16S rRNA gene sequencing. In addition, faecal samples were assayed for short-chain fatty acid (SCFA) concentrations using gas chromatography. Lipopolysaccharide-binding protein (LBP) was measured in serum samples, as an indirect indicator for bacterial lipopolysaccharide (LPS) load in blood. RESULTS The microbial biodiversity was significantly different between the treatment groups. In the rats with CPI, there was a significant increase in gut microbial populations Rikenellaceae, Odoribacter, Clostridiaceae, Allobaculum and Peptococcaceae compared with healthy rats. Conversely, levels of Bacteroides uniformis, Lactobacillus and Lachnospiraceae were decreased in rats with CPI. SCFA butyric-, valeric- and caproic-acid concentrations were also decreased in the faecal samples of the rats with CPI. In contrast, acetic acid concentrations and serum LBP were significantly elevated in CPI rats compared with healthy ones. Amongst rats with CPI, treatment with the GGM extract significantly reduced the abundance of Odoribacter and Clostridiaceae levels, and increased the B. uniformis levels compared with CPI rats drinking tap water only. In addition, GGM significantly increased the levels of butyric acid and caproic acid, and reduced the levels of LBP in serum. CONCLUSIONS Hormone-induced nonbacterial CPI in rats is associated with specific changes in gut microbiota and secondary changes in SCFAs and LPS due to gut microbiota alteration. Our results further suggest that fermentable compounds may have a beneficial effect on CPI.
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Affiliation(s)
- Yvonne Konkol
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Anniina Keskitalo
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | | | - Sami Pietilä
- Bioinformatics Unit, Turku Centre of Biotechnology, University of Turku, Åbo Akademi University, Turku, Finland
| | - Laura L Elo
- Bioinformatics Unit, Turku Centre of Biotechnology, University of Turku, Åbo Akademi University, Turku, Finland
| | - Eveliina Munukka
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | | | - Johanna Tuomela
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
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Mukherjee P, Hough G, Chattopadhyay A, Grijalva V, O'Connor EI, Meriwether D, Wagner A, Ntambi JM, Navab M, Reddy ST, Fogelman AM. Role of enterocyte stearoyl-Co-A desaturase-1 in LDLR-null mice. J Lipid Res 2018; 59:1818-1840. [PMID: 30139760 DOI: 10.1194/jlr.m083527] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 07/30/2018] [Indexed: 11/20/2022] Open
Abstract
After crossing floxed stearoyl-CoA desaturase-1 (Scd1 fl/fl) mice with LDL receptor-null (ldlr -/-) mice, and then Villin Cre (VilCre) mice, enterocyte Scd1 expression in Scd1 fl/fl/ldlr -/-/VilCre mice was reduced 70%. On Western diet (WD), Scd1 fl/fl/ldlr -/- mice gained more weight than Scd1 fl/fl/ldlr -/-/VilCre mice (P < 0.0023). On WD, jejunum levels of lysophosphatidylcholine (LysoPC) 18:1 and lysophosphatidic acid (LPA) 18:1 were significantly less in Scd1 fl/fl/ldlr -/-/VilCre compared with Scd1 fl/fl/ldlr -/- mice (P < 0.0004 and P < 0.026, respectively). On WD, Scd1 fl/fl/ldlr -/-/VilCre mice compared with Scd1 fl/fl/ldlr -/- mice had lower protein levels of lipopolysaccharide-binding protein (LBP), cluster of differentiation 14 (CD14), toll-like receptor 4 (TLR4), and myeloid differentiation factor-88 (MyD88) in enterocytes and plasma, and less dyslipidemia and systemic inflammation. Adding a concentrate of tomatoes transgenic for the apoA-I mimetic peptide 6F (Tg6F) to WD resulted in reduced enterocyte protein levels of LBP, CD14, TLR4, and MyD88 in Scd1 fl/fl/ldlr -/- mice similar to that seen in Scd1 fl/fl/ldlr -/-/VilCre mice. Adding LysoPC 18:1 to WD did not reverse the effects of enterocyte Scd1 knockdown. Adding LysoPC 18:1 (but not LysoPC 18:0) to chow induced jejunum Scd1 expression and increased dyslipidemia and plasma serum amyloid A and interleukin 6 levels in Scd1 fl/fl/ldlr -/- mice, but not in Scd1 fl/fl/ldlr -/-/VilCre mice. We conclude that enterocyte Scd1 is partially responsible for LysoPC 18:1- and WD-induced dyslipidemia and inflammation in ldlr -/- mice.
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Affiliation(s)
- Pallavi Mukherjee
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Greg Hough
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Arnab Chattopadhyay
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Victor Grijalva
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Ellen Ines O'Connor
- Molecular Toxicology Interdepartmental Program, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - David Meriwether
- Departments of Molecular and Medical Pharmacology, University of California-Los Angeles, Los Angeles, CA 90095
| | - Alan Wagner
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - James M Ntambi
- Departments of Biochemistry and Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706
| | - Mohamad Navab
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Srinivasa T Reddy
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095 .,Departments of Molecular and Medical Pharmacology, University of California-Los Angeles, Los Angeles, CA 90095.,Departments of Obstetrics and Gynecology, University of California-Los Angeles, Los Angeles, CA 90095
| | - Alan M Fogelman
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
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Wang N, Song X, Liu L, Niu L, Wang X, Song X, Xie L. Circulating exosomes contain protein biomarkers of metastatic non-small-cell lung cancer. Cancer Sci 2018; 109:1701-1709. [PMID: 29573061 PMCID: PMC5980308 DOI: 10.1111/cas.13581] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/07/2018] [Accepted: 03/13/2018] [Indexed: 01/01/2023] Open
Abstract
The present study aimed to investigate the overall changes in exosomal proteomes in metastatic and non‐metastatic non‐small‐cell lung cancers (NSCLC) and healthy human serum samples, and evaluate the potential of serum exosomal biomarkers to predict NSCLC metastasis. Tandem mass tags combined with multidimensional liquid chromatography and mass spectrometry analysis were used for screening the proteomic profiles of serum samples. Quantitative proteome, significant pathway, and functional categories of patients with metastatic and non‐metastatic NSCLC and healthy donors were investigated. In total, 552 proteins of the 628 protein groups identified were quantified. Bioinformatics analysis indicated that quantifiable proteins were mainly involved in multiple biological functions, metastasis‐related pathways. Moreover, lipopolysaccharide‐binding proteins (LBP) in the exosomes were found to be well distinguished between patients with metastatic and patients with non‐metastatic NSCLC. Area under the curve (AUC) was 0.803 with a sensitivity of 83.1% and a specificity of 67% (P < .0001). Circulating LBP were also well distinguishable between metastatic and non‐metastatic NSCLC, the AUC was 0.683 with a sensitivity of 79.5% and a specificity of 47.2% (P = .005). This novel study provided a reference proteome map for metastatic NSCLC. Patients with metastatic and non‐metastatic NSCLC differed in exosome‐related proteins in the serum. LBP might be promising and effective candidates of metastatic NSCLC.
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Affiliation(s)
- Ning Wang
- School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Jinan, China.,Department of Clinical Laboratory, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Xingguo Song
- Shandong Cancer Hospital & Institute, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Lisheng Liu
- Department of Clinical Laboratory, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China.,Shandong Cancer Hospital & Institute, Shandong Academy of Medical Sciences, Jinan, China
| | - Limin Niu
- School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Jinan, China.,Department of Clinical Laboratory, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Xingwu Wang
- Shandong Cancer Hospital & Institute, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Xianrang Song
- Department of Clinical Laboratory, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China.,Shandong Cancer Hospital & Institute, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Li Xie
- Department of Clinical Laboratory, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China.,Shandong Cancer Hospital & Institute, Shandong Academy of Medical Sciences, Jinan, China.,Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
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30
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Bindels LB, Neyrinck AM, Loumaye A, Catry E, Walgrave H, Cherbuy C, Leclercq S, Van Hul M, Plovier H, Pachikian B, Bermúdez-Humarán LG, Langella P, Cani PD, Thissen JP, Delzenne NM. Increased gut permeability in cancer cachexia: mechanisms and clinical relevance. Oncotarget 2018; 9:18224-18238. [PMID: 29719601 PMCID: PMC5915068 DOI: 10.18632/oncotarget.24804] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 02/26/2018] [Indexed: 12/20/2022] Open
Abstract
Intestinal disorders often occur in cancer patients, in association with body weight loss, and this alteration is commonly attributed to the chemotherapy. Here, using a mouse model of cancer cachexia induced by ectopic transplantation of C26 cancer cells, we discovered a profound alteration in the gut functions (gut permeability, epithelial turnover, gut immunity, microbial dysbiosis) independently of any chemotherapy. These alterations occurred independently of anorexia and were driven by interleukin 6. Gut dysfunction was found to be resistant to treatments with an anti-inflammatory bacterium (Faecalibacterium prausnitzii) or with gut peptides involved in intestinal cell renewal (teduglutide, a glucagon-like peptide 2 analogue). The translational value of our findings was evaluated in 152 colorectal and lung cancer patients with or without cachexia. The serum level of the lipopolysaccharide-binding protein, often presented as a reflection of the bacterial antigen load, was not only increased in cachectic mice and cancer patients, but also strongly correlated with the serum IL-6 level and predictive of death and cachexia occurrence in these patients. Altogether, our data highlight profound alterations of the intestinal homeostasis in cancer cachexia occurring independently of any chemotherapy and food intake reduction, with potential relevance in humans. In addition, we point out the lipopolysaccharide-binding protein as a new biomarker of cancer cachexia related to gut dysbiosis.
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Affiliation(s)
- Laure B Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Audrey M Neyrinck
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Audrey Loumaye
- Endocrinology, Diabetology and Nutrition Department, Institut de Recherches Expérimentales et Cliniques, Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Emilie Catry
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Hannah Walgrave
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Claire Cherbuy
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Sophie Leclercq
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium.,Pôle Clinique, Psychiatrie, Institute of Neuroscience, Université Catholique de Louvain, Brussels, Belgium
| | - Matthias Van Hul
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Hubert Plovier
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Barbara Pachikian
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | | | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Patrice D Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium.,Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Jean-Paul Thissen
- Endocrinology, Diabetology and Nutrition Department, Institut de Recherches Expérimentales et Cliniques, Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Nathalie M Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
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31
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Ott B, Skurk T, Lagkouvardos L, Fischer S, Büttner J, Lichtenegger M, Clavel T, Lechner A, Rychlik M, Haller D, Hauner H. Short-Term Overfeeding with Dairy Cream Does Not Modify Gut Permeability, the Fecal Microbiota, or Glucose Metabolism in Young Healthy Men. J Nutr 2018; 148:77-85. [PMID: 29378051 DOI: 10.1093/jn/nxx020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 10/23/2017] [Indexed: 12/29/2022] Open
Abstract
Background High-fat diets (HFDs) have been linked to low-grade inflammation and insulin resistance. Objective The main purpose of the present study was to assess whether acute overfeeding with an HFD affects insulin sensitivity, gut barrier function, and fecal microbiota in humans. Methods In a prospective intervention study, 24 healthy men [mean ± SD: age 23.0 ± 2.8 y, body mass index (in kg/m2) 23.0 ± 2.1] received an HFD (48% of energy from fat) with an additional 1000 kcal/d (as whipping cream) above their calculated energy expenditure for 7 d. Insulin sensitivity (hyperinsulinemic euglycemic clamp), gut permeability (sugar and polyethylene glycol absorption tests, plasma zonulin), and gut microbiota profiles (high-throughput 16S rRNA gene sequencing) were assessed before and after overfeeding, and 14 d after intervention. Additionally, inflammation markers such as high-sensitivity C-reactive protein, lipopolysaccharide-binding protein, leptin, high-molecular-weight adiponectin, calprotectin, regulated on activation normal, T cell expressed and secreted (RANTES), and monocyte chemoattractant protein-1 were measured in plasma by ELISA. Finally, lipid parameters were analyzed in serum by a laboratory service. Results Although participants gained 0.9 ± 0.6 kg (P < 0.001) body weight, overnutrition was not associated with a significant change in insulin sensitivity (M value and glucose disposal). Overfeeding for 7 d resulted in elevated serum total (10.2%), LDL (14.6%) and HDL (14.8%) cholesterol concentrations (P < 0.01). In contrast, fasting plasma triglyceride significantly declined (29.3%) during overfeeding (P < 0.001). In addition, there were no significant changes in inflammatory markers. Urine excretion of 4 sugars and polyethylene glycol, used as a proxy for gut permeability, and plasma concentration of zonulin, a marker of paracellular gut permeability, were unchanged. Moreover, overfeeding was not associated with consistent changes in gut microbiota profiles, but marked alterations were observed in a subgroup of 6 individuals. Conclusions Our findings suggest that short-term overfeeding with an HFD does not significantly impair insulin sensitivity and gut permeability in normal-weight healthy men, and that changes in dominant communities of fecal bacteria occur only in certain individuals. The study was registered in the German Clinical Trial Register as DRKS00006211.
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Affiliation(s)
- Beate Ott
- Else Kröner-Fresenius-Center of Nutritional Medicine, ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.,ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Thomas Skurk
- Else Kröner-Fresenius-Center of Nutritional Medicine, ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.,ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Llias Lagkouvardos
- ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Sandra Fischer
- ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Janine Büttner
- Charité-Universitätsmedizin, Medizinische Klinik mit Schwerpunkt Hepatologie und Gastroenterologie, Berlin, Germany
| | - Martina Lichtenegger
- Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Thomas Clavel
- ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.,Institute of Medical Microbiology, RWTH University Hospital, Aachen, Germany
| | - Andreas Lechner
- Diabetes Research Group, Medical Department 4, Ludwig-Maximilians Universität, Munich, Germany.,Clinical Cooperation Group Type 2 Diabetes, German Research Center for Environmental Health, Neuherberg, Germany.,Diabetes Research Group, German Center for Diabetes Research, Munich, Germany
| | - Michael Rychlik
- Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Dirk Haller
- ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.,Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Hans Hauner
- Else Kröner-Fresenius-Center of Nutritional Medicine, ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.,ZIEL Institute for FOOD and Health, Chair of Analytical Food Chemistry, and Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany.,Institute of Nutritional Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Citronberg JS, Wilkens LR, Le Marchand L, Lim U, Monroe KR, Hullar MAJ, White E, Newcomb PA, Lampe JW. Plasma lipopolysaccharide-binding protein and colorectal cancer risk: a nested case-control study in the Multiethnic Cohort. Cancer Causes Control 2017; 29:115-123. [PMID: 29189972 DOI: 10.1007/s10552-017-0990-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 11/23/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND Lipopolysaccharide (LPS), an endotoxin found on the outer cell wall of Gram-negative bacteria, increases inflammatory response signaling and may play a role in the pathogenesis of several adverse outcomes, including inflammatory bowel diseases, cardiovascular disease, and cancer. While LPS is hypothesized to be associated with colorectal carcinogenesis, there are relatively few human studies which have examined this association. METHODS We examined the association between colorectal cancer (CRC) and plasma lipopolysaccharide-binding protein (LBP), a marker of LPS, in 1,638 participants (819 CRC cases and 819 controls) matched on multiple factors, including age, sex, and race/ethnicity, from the Multiethnic Cohort study. Conditional logistic regression models were used to estimate the multivariable-adjusted odds ratios (OR) and 95% confidence intervals (95% CI). RESULTS Compared to individuals whose LBP concentrations were in the lowest quartile, the ORs associated with second, third, and fourth quartiles were 1.23 (95% CI 0.91-1.67), 1.36 (95% CI 1.01-1.83), and 1.01 (95% CI 0.73-1.39), respectively, (p trend = 0.66). No differences were observed by BMI, fiber intake, saturated fat intake, cancer site, or cancer stage. CONCLUSIONS This study did not find an overall statistically significant association between LBP (as a marker of LPS exposure) and CRC. Further prospective studies with multiple LBP measurements are needed to validate current findings.
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Affiliation(s)
- Jessica S Citronberg
- Department of Epidemiology, University of Washington, Seattle, WA, USA. .,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, M4-B402, PO Box 19024, Seattle, WA, USA.
| | - Lynne R Wilkens
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Loic Le Marchand
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Unhee Lim
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Kristine R Monroe
- Keck School of Medicine of University of Southern California, Los Angeles, CA, USA
| | - Meredith A J Hullar
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, M4-B402, PO Box 19024, Seattle, WA, USA
| | - Emily White
- Department of Epidemiology, University of Washington, Seattle, WA, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, M4-B402, PO Box 19024, Seattle, WA, USA
| | - Polly A Newcomb
- Department of Epidemiology, University of Washington, Seattle, WA, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, M4-B402, PO Box 19024, Seattle, WA, USA
| | - Johanna W Lampe
- Department of Epidemiology, University of Washington, Seattle, WA, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, M4-B402, PO Box 19024, Seattle, WA, USA
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Chalubinska-Fendler J, Fendler W, Spych M, Wyka K, Luniewska-Bury J, Fijuth J. Lipopolysaccharide-binding protein is efficient in biodosimetry during radiotherapy of lung cancer. Biomed Rep 2016; 5:450-454. [PMID: 27699012 DOI: 10.3892/br.2016.739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/16/2016] [Indexed: 12/25/2022] Open
Abstract
The aim of the present study was to determine if the serum levels of early markers of inflammation, such as interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), C-reactive protein (CRP), and lipopolysaccharide-binding protein (LBP) were correlated with the radiation dose received by the pulmonary and mediastinal structures of patients with non-small cell lung cancer (NSCLC). This pilot study included 26 patients with NSCLC who received total radiation doses ranging from 54 to 74 Gy (2.0 Gy/fraction). Cytokines were measured at baseline by enzyme-linked immunosorbant assay, and following administration of total doses of 20 and 40 Gy. A control group of 26 participants was sampled for comparisons with patient baseline cytokine levels. Only data from the 40-Gy cytokine blood levels of patients with NSCLC were identified to be correlated with histograms of the parameters of each patient's radiotherapy protocol. The IL-6, TNF-α and CRP median baseline levels of the patients with NSCLC were significantly higher than those of the controls (all P≤0.01). No differences were observed between the LBP levels of the patients and controls [median, 36.34 (25-75%; 31.35-39.27) vs. 36.92 (30.20-44.05) µg/ml, respectively; P=0.42]. No significant differences in the levels of the four cytokines between baseline, and at 20 and 40 Gy were observed [IL-6 (P=0.19); TNF-α (P=0.68); CRP (P=0.44) and LBP (P=0.29)]. LBP was significantly and positively correlated with the mean radiation dose to the lung (r=0.409; P=0.038), and showed a positive correlation with the percentage of lung volume exposed to at least 20 Gy of the planned radiation dose (r=0.3536; P=0.0764). CRP levels were positively correlated with the mean radiation dose to the esophagus (r=0.404; P=0.041); however, IL-6, TNF-α and CRP were not significantly associated with other lung dosimetry parameters. Thus, LBP levels were correlated with radiation exposure of pulmonary tissues, and LBP may be a marker that warrants further investigation on radiotoxicity in NSCLC patients.
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Affiliation(s)
| | - Wojciech Fendler
- Department of Biostatistics and Translational Medicine, Medical University of Łódź, 91-738 Łódź, Poland
| | - Michal Spych
- Department of Radiotherapy, Medical University of Łódź, 93-509 Łódź, Poland
| | - Krystyna Wyka
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Łódź, 91-738 Łódź, Poland
| | | | - Jacek Fijuth
- Department of Radiotherapy, Medical University of Łódź, 93-509 Łódź, Poland
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Zhou H, Hu J, Zhu Q, Yang S, Zhang Y, Gao R, Liu L, Wang Y, Zhen Q, Lv Q, Li Q. Lipopolysaccharide-binding protein cannot independently predict type 2 diabetes mellitus: A nested case-control study. J Diabetes 2016; 8:214-9. [PMID: 25753130 DOI: 10.1111/1753-0407.12281] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/30/2015] [Accepted: 02/20/2015] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Cross-sectional studies have reported a close association between serum lipopolysaccharide-binding protein (LBP) and many metabolic disorders. However, no longitudinal study has explored the relationship between LBP and type 2 diabetes mellitus (T2DM). The aim of the present study was to investigate the association between serum LBP levels and the risk of developing T2DM. METHODS A 5-year nested case-control study of 3510 individuals was performed as part of the Environment, Inflammation and Metabolic Diseases Study (EIMDS). Clinical data were collected at baseline. Serum levels of LBP and other biochemical factors, such as insulin and high-sensitivity C-reactive protein, were detected 5 years later. Subjects were diagnosed as having T2DM on the basis of results of an oral glucose tolerance test (OGTT) and 1998 World Health Organization criteria. Controls were randomly selected to match cases according to age, gender, and body mass index (BMI) in a 1:1 ratio. Odds ratios (OR) for T2DM were calculated using conditional logistic regression analysis. RESULTS Over a 5-year follow-up period, 255 subjects developed T2DM. There was no significant difference in serum LBP levels between the T2DM and control groups at baseline (19.78 ± 6.40 versus 20.53 ± 6.99 μg/mL; P = 0.207). Subjects were divided into three groups based on tertiles of LBP concentrations (n = 170 in each group; T1 = 1.31-17.16 μg/mL LBP; T2 = 17.21-22.37 μg/mL LBP; T3 = 22.49-40.08 μg/mL LBP). There was no significant association between the risk of developing T2DM and any of the LBP tertiles in either a simple model or after adjusting for general status and biochemical factors. CONCLUSION After matching for gender, age, and BMI, LBP does not improve prediction of the development of T2DM independently.
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Affiliation(s)
- Huang Zhou
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jinbo Hu
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qibo Zhu
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shumin Yang
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Zhang
- Hospital of Chongqing University, Chongqing, China
| | - Rufei Gao
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lulu Liu
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yue Wang
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qianna Zhen
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiong Lv
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qifu Li
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Ratzinger F, Haslacher H, Perkmann T, Schmetterer KG, Poeppl W, Mitteregger D, Dorffner G, Burgmann H. Sepsis biomarkers in neutropaenic systemic inflammatory response syndrome patients on standard care wards. Eur J Clin Invest 2015; 45:815-23. [PMID: 26046926 DOI: 10.1111/eci.12476] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 06/01/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Neutropaenic patients are at a high risk of contracting severe infections. In particular, in these patients, parameters with a high negative predictive value are desirable for excluding infection or bacteraemia. This study evaluated sepsis biomarkers in neutropaenic patients suffering from systemic inflammatory response syndrome (SIRS). Further, the predictive capacities of evaluated biomarkers in neutropaenic SIRS patients were compared to non-neutropaenic SIRS patients. MATERIAL AND METHODS In this prospective observational cohort study, patients with clinically suspected sepsis were screened. The predictive capacities of procalcitonin (PCT), C-reactive protein and lipopolysaccharide-binding protein (LBP) in neutropaenic SIRS patients were evaluated in terms of their potential to identify infection or bacteraemia and were compared to results for non-neutropaenic SIRS patients. To select an appropriate control cohort, propensity score matching was applied, balancing confounding factors between neutropaenic and non-neutropaenic SIRS patients. RESULTS Of 3370 prospectively screened patients with suspected infection, 51 patients suffered from neutropaenic SIRS. For the identification of infection, none of the assessed biomarkers presented a clinically relevant discriminatory potency. Lipopolysaccharide-binding protein and PCT demonstrated discriminatory capacity to discriminate between nonbacteraemic and bacteraemic SIRS in patients with neutropaenia [receiver-operating characteristics-area under the curves (ROC-AUCs): 0.860, 0.818]. In neutropaenic SIRS patients, LBP had a significantly better ROC-AUC than in a comparable non-neutropaenic patient cohort for identifying bacteraemia (P = 0.01). CONCLUSION In neutropaenic SIRS patients, none of the evaluated biomarkers was able to adequately identify infection. LBP and PCT presented a good performance in identifying bacteraemia. Therefore, these markers could be used for screening purposes to increase the pretest probability of blood culture analysis.
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Affiliation(s)
- Franz Ratzinger
- Division of Medical and Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Helmuth Haslacher
- Division of Medical and Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Thomas Perkmann
- Division of Medical and Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Klaus G Schmetterer
- Division of Medical and Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Poeppl
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Dieter Mitteregger
- Division of Clinical Microbiology, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Georg Dorffner
- Section for Artificial Intelligence, Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - Heinz Burgmann
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine I, Medical University of Vienna, Vienna, Austria
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Swanson GR, Gorenz A, Shaikh M, Desai V, Forsyth C, Fogg L, Burgess HJ, Keshavarzian A. Decreased melatonin secretion is associated with increased intestinal permeability and marker of endotoxemia in alcoholics. Am J Physiol Gastrointest Liver Physiol 2015; 308:G1004-11. [PMID: 25907689 PMCID: PMC4469868 DOI: 10.1152/ajpgi.00002.2015] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 04/15/2015] [Indexed: 01/31/2023]
Abstract
Chronic heavy alcohol use is known to cause gut leakiness and alcoholic liver disease (ALD), but only 30% of heavy drinkers develop increased intestinal permeability and ALD. The hypothesis of this study was that disruption of circadian rhythms is a potential risk factor in actively drinking alcoholics for gut leakiness and endotoxemia. We studied 20 subjects with alcohol use disorder (AD) and 17 healthy controls (HC, 6 day workers, 11 night workers). Subjects wore a wrist actiwatch for 7 days and underwent a 24-h dim light phase assessment and urine collection for intestinal permeability. The AD group had significantly less total sleep time and increased fragmentation of sleep (P < 0.05). AD also had significantly lower plasma melatonin levels compared with the HC [mean area under the curve (AUC) 322.78 ± 228.21 vs. 568.75 ± 304.26 pg/ml, P = 0.03]. In the AD group, AUC of melatonin was inversely correlated with small bowel and colonic intestinal permeability (lactulose-to-mannitol ratio, r = -0.39, P = 0.03; urinary sucralose, r = -0.47, P = 0.01). Cosinor analysis of lipopolysaccharide-binding protein (marker of endotoxemia) and lipopolysaccharide every 4 h for 24 h in HC and AD subjects had a midline estimating statistic of rhythm of 5,026.15 ± 409.56 vs. 6,818.02 ± 628.78 ng/ml (P < 0.01) and 0.09 ± 0.03 vs. 0.15 ± 0.19 EU/ml (P < 0.05), respectively. We found plasma melatonin was significantly lower in the AD group, and lower melatonin levels correlated with increased intestinal permeability and a marker of endotoxemia. Our study suggests the suppression of melatonin in AD may promote gut leakiness and endotoxemia.
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Affiliation(s)
- Garth R. Swanson
- 1Department of Digestive Diseases, Rush University Medical Center, Chicago, Illinois;
| | - Annika Gorenz
- 1Department of Digestive Diseases, Rush University Medical Center, Chicago, Illinois;
| | - Maliha Shaikh
- 1Department of Digestive Diseases, Rush University Medical Center, Chicago, Illinois;
| | - Vishal Desai
- 1Department of Digestive Diseases, Rush University Medical Center, Chicago, Illinois;
| | - Christopher Forsyth
- 1Department of Digestive Diseases, Rush University Medical Center, Chicago, Illinois;
| | - Louis Fogg
- 4Community, Systems and Mental Health Nursing, Rush University, Chicago, Illinois
| | - Helen J. Burgess
- 2Departments of Behavioral Sciences and Internal Medicine, Rush University Medical Center, Chicago, Illinois;
| | - Ali Keshavarzian
- 1Department of Digestive Diseases, Rush University Medical Center, Chicago, Illinois; ,3Departments of Pharmacology, Molecular Biophysics & Physiology, Rush University Medical Center, Chicago, Illinois; and
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Abstract
Background: We hypothesised that nonobese postmenopausal women (NoPoW) and diabetic NoPoW (DNoPoW) may be independently associated with postprandial endotoxemia. Materials and Methods: NoPoW and DNoPoW were evaluated for weight, eating habits, physical activity, body circumferences, fasting plasma glucose level, postprandial plasma glucose level, and insulin level. The lipopolysaccharide (LPS) levels and circulating LPS-binding protein (LBP) were determined in serum at fasting, 1 h, 2 h, 3 h, and 4 h after meal intake and their levels were co-related in 80 NoPoW and 80 DNoPoW. Results: Both DNoPoW group and NoPoW group showed a significant increase (P < 0.05) in LPS levels and circulating LBP in plasma after the meal intake, interestingly the increase was higher in the DNoPoW group. Conclusions: Elevated LPS and circulating LBP were associated significantly with DNoPoW group and NoPoW, especially after a meal intake. These findings suggested a role of LPS and LBP in postprandial systemic inflammation in DNoPoW group. Prospective studies are needed to confirm these results.
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Affiliation(s)
- Gaffar Sarwar Zaman
- Department of Clinical Biochemistry, Government College of Medicine, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Fawzia Zaman
- Head of Operations and Quality Manager Ekopath Metropolis, Guwahati, Assam, India
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Tsai CH, Yeh CH, Sheen-Chen SM, Huang CY, Liu YW, Huang CC, Shen SC, Tang RP. The kinetic expression of lipopolysaccharide-binding protein and CD14 gene in obstructive jaundice. J INVEST SURG 2014; 28:18-23. [PMID: 25093541 DOI: 10.3109/08941939.2014.943858] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Binding lipopolysaccharide (LPS) with high-affinity, lipopolysaccharide-binding protein (LBP) and CD14 lower the threshold stimulatory concentrations of LPS dramatically and enhance the rate of cytokine production markedly. This study aimed to investigate the kinetic expression of LBP/CD14 and its possible relationship with tumor necrosis factor alpha (TNF-α) to better understand the pathophysiology of obstructive jaundice. MATERIALS AND METHODS The tissues (liver, spleen, intestine, and lung) of male Sprague-Dawley rats were harvested at pre-bile duct ligation in controls and at specific time points (24, 48, 72, 96, and 120 hr) after bile duct ligation. LBP, CD14, and TNF-α mRNA expression were measured in tissues harvested from controls and at the specific time points. RESULTS Hepatic LBP mRNA expression increased significantly at five days after bile duct ligation. CD 14 mRNA expression increased significantly after five days of bile duct ligation in liver, lung, spleen, and ileum. TNF-α mRNA expression increased significantly in all four organs (liver, lung, spleen, and ileum) after four days of bile duct ligation. CONCLUSION Five days of bile duct ligation upregulated CD 14 mRNA expression in liver, lung, spleen, and ileum and increased TNF-α mRNA expression simultaneously in the liver, lung, spleen, and ileum. In addition, five days of bile duct ligation also upregulated LBP mRNA expression in the liver and increased hepatic TNF-α mRNA expression simultaneously. The kinetic expressions of LBP and CD 14 in obstructive jaundice are intriguing and further evaluation is warranted.
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Affiliation(s)
- Ching-Hua Tsai
- 1Department of Surgery, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taiwan
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Keestra AM, de Zoete MR, Bouwman LI, Vaezirad MM, van Putten JPM. Unique features of chicken Toll-like receptors. Dev Comp Immunol 2013; 41:316-323. [PMID: 23628643 DOI: 10.1016/j.dci.2013.04.009] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 04/16/2013] [Indexed: 06/02/2023]
Abstract
Toll-like receptors (TLRs) are a major class of innate immune pattern recognition receptors that have a key role in immune homeostasis and the defense against infections. The research explosion that followed the discovery of TLRs more than a decade ago has boosted fundamental knowledge on the function of the immune system and the resistance against disease, providing a rational for clinical modulation of the immune response. In addition, the conserved nature of the ancient TLR system throughout the animal kingdom has enabled a comparative biology approach to understand the evolution, structural architecture, and function of TLRs. In the present review we focus on TLR biology in the avian species, and, especially, on the unique functional properties of the chicken TLR repertoire.
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Affiliation(s)
- A Marijke Keestra
- Department of Infectious Disease & Immunology, Utrecht University, The Netherlands
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Buddingh KT, Koudstaal LG, van Santvoort HC, Besselink MG, Timmer R, Rosman C, van Goor H, Nijmeijer RM, Gooszen H, Leuvenink HG. Early angiopoietin-2 levels after onset predict the advent of severe pancreatitis, multiple organ failure, and infectious complications in patients with acute pancreatitis. J Am Coll Surg. 2014;218:26-32. [PMID: 24355874 DOI: 10.1016/j.jamcollsurg.2013.09.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/31/2013] [Accepted: 09/30/2013] [Indexed: 11/23/2022]
Abstract
BACKGROUND Acute pancreatitis is a severe condition that requires early identification of patients at risk of developing potentially lethal complications. Current clinical scoring systems and biochemical parameters are insufficient. In this study, we aimed to assess whether early plasma Angiopoietin-2 (Ang-2) is associated with adverse outcomes in patients with predicted severe acute pancreatitis (SAP). STUDY DESIGN This analysis is a substudy of the PROPATRIA trial (probiotics vs placebo in patients with predicted SAP). The Ang-2 levels were measured prospectively in plasma in the first 5 days after admission in 115 patients. RESULTS Early Ang-2 levels were higher in patients who developed SAP: 6.4 vs 3.1 μg/L (p < 0.001) and also were higher in patients who developed multiorgan failure in the first week (p = 0.001) and after the first week (p = 0.049). Furthermore, high Ang-2 levels were associated with infectious complications in the first week (p < 0.001) and after the first week (p < 0.001). Finally, plasma Ang-2 was significantly higher in patients who died (p < 0.001) and in patients who developed bowel ischemia (p < 0.001). As a predictor of adverse outcomes, plasma Ang-2 was superior to a number of current scores, such as the APACHE II score, the Imrie score, C-reactive protein, lipopolysaccharide binding protein, and procalcitonin. CONCLUSIONS In the setting of this randomized controlled trial, early plasma Ang-2 was found to be an accurate predictor of SAP, multiorgan failure, and infectious complications. As a biomarker, it did outperform all of the investigated conventional predictors that are currently used in clinical practice.
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Mortensen C, Karlsen S, Grønbæk H, Nielsen DT, Frevert S, Clemmesen JO, Møller S, Jensen JS, Bendtsen F. No difference in portal and hepatic venous bacterial DNA in patients with cirrhosis undergoing transjugular intrahepatic portosystemic shunt insertion. Liver Int 2013; 33:1309-15. [PMID: 23763259 DOI: 10.1111/liv.12205] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 04/17/2013] [Accepted: 05/02/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bacterial translocation (BT) with immune activation may lead to hemodynamical alterations and poor outcomes in patients with cirrhosis. AIMS We investigated bacterial DNA (bDNA), a marker of BT, and its relation to portal pressure and markers of inflammation in the portal and hepatic veins in patients with cirrhosis undergoing TIPS insertion. METHODS We analysed plasma for bDNA and markers of inflammation in 28 patients [median portal pressure gradient 15 (11-19) mmHg] during TIPS treatment for refractory ascites (n = 19) or acute variceal bleeding (n = 9). Advanced cirrhosis was present in the majority [Child-Pugh class (A/B/C): 1/14/13], and most often caused by alcohol (n = 21). RESULTS bDNA was detectable in one or both samples in 16 of 28 patients (57%). bDNA was present in 39% of the samples from the portal vein vs 43% of the samples in the hepatic vein (P = 0.126). Antibiotics had no effect on bDNA or markers of inflammation. Markers of inflammation did not differ between the hepatic and portal veins with the exceptions of soluble urokinase plasminogen activating receptor (suPAR) and vascular endothelial growth factor (VEGF), both higher in the hepatic vein (P = 0.031 and 0.003 respectively). CONCLUSIONS No transhepatic gradient of bDNA was evident, suggesting that no major hepatic elimination of bDNA occurs in advanced liver disease. bDNA, in contrast to previous reports was largely unrelated to a panel of markers of inflammation and without relation to portal pressure.
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Affiliation(s)
- Christian Mortensen
- Department of Gastroenterology, Hvidovre University Hospital, Hvidovre, Denmark; Department of Clinical Physiology and Nuclear Medicine, Centre of Functional Imaging and Research, Hvidovre University Hospital, Hvidovre, Denmark; Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Deschner J, Singhal A, Long P, Liu CC, Piesco N, Agarwal S. Cleavage of CD14 and LBP by a protease from Prevotella intermedia. Arch Microbiol 2003; 179:430-6. [PMID: 12728301 PMCID: PMC4948982 DOI: 10.1007/s00203-003-0548-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2003] [Revised: 04/08/2003] [Accepted: 04/10/2003] [Indexed: 11/29/2022]
Abstract
Periodontitis is an inflammatory disease caused by subgingival microorganisms and their components, such as lipopolysaccharide (LPS). Responses of the host to LPS are mediated by CD14 and LPS-binding protein (LBP). In this study, it was determined that proteases from a periodontal pathogen, Prevotella intermedia, cleave CD14 and LBP, and thereby modulate the virulence of LPS. Culture supernatants from two strains of P. intermedia (ATCC 25611 and 25261) cleaved CD14 and LBP in a concentration-dependent manner. Zymographic and molecular mass analysis revealed the presence of a membrane-associated, 170-kDa, monomeric protease. Class-specific inhibitors and stimulators demonstrated that this enzyme is a metal-requiring, thiol-activated, cysteine protease. The protease was stable over a wide range of temperatures (4-56 degrees C) and pH values (4.5-8.5). This enzyme also decreased the expression of interleukin-1beta (IL-1beta)-specific mRNA in the LPS-activated macrophage-like cell lines U937 and THP-1 in a concentration-dependent manner, indicating that it also cleaves membrane-associated CD14. Furthermore, addition of soluble CD14 abrogated protease-mediated inhibition of IL-1 mRNA expression induced by LPS. The observations suggest that proteolysis of CD14 and LBP by P. intermedia protease might modulate the virulence of LPS at sites of periodontal infections.
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Affiliation(s)
- James Deschner
- Department of Oral Medicine and Pathology, University of Pittsburgh School of Dental Medicine, 589 Salk Hall, 3501 Terrace Street, Pittsburgh, PA 15261-1964, USA, Tel.: +1-412-648-8951, Fax: +1-412-624-6685
| | - Anuradha Singhal
- Department of Oral Medicine and Pathology, University of Pittsburgh School of Dental Medicine, 589 Salk Hall, 3501 Terrace Street, Pittsburgh, PA 15261-1964, USA, Tel.: +1-412-648-8951, Fax: +1-412-624-6685
| | - Ping Long
- Department of Oral Medicine and Pathology, University of Pittsburgh School of Dental Medicine, 589 Salk Hall, 3501 Terrace Street, Pittsburgh, PA 15261-1964, USA, Tel.: +1-412-648-8951, Fax: +1-412-624-6685
| | - Chau-Ching Liu
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Nicholas Piesco
- Department of Oral Medicine and Pathology, University of Pittsburgh School of Dental Medicine, 589 Salk Hall, 3501 Terrace Street, Pittsburgh, PA 15261-1964, USA, Tel.: +1-412-648-8951, Fax: +1-412-624-6685
| | - Sudha Agarwal
- Department of Oral Medicine and Pathology, University of Pittsburgh School of Dental Medicine, 589 Salk Hall, 3501 Terrace Street, Pittsburgh, PA 15261-1964, USA, Tel.: +1-412-648-8951, Fax: +1-412-624-6685
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