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Hueso T, Ekpe K, Mayeur C, Gatse A, Joncquel-Chevallier Curt M, Gricourt G, Rodriguez C, Burdet C, Ulmann G, Neut C, Amini SE, Lepage P, Raynard B, Willekens C, Micol JB, De Botton S, Yakoub-Agha I, Gottrand F, Desseyn JL, Thomas M, Woerther PL, Seguy D. Impact and consequences of intensive chemotherapy on intestinal barrier and microbiota in acute myeloid leukemia: the role of mucosal strengthening. Gut Microbes 2020; 12:1800897. [PMID: 32893715 PMCID: PMC7524297 DOI: 10.1080/19490976.2020.1800897] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Induction chemotherapy (7 + 3 regimen) remains the gold standard for patients with acute myeloid leukemia (AML) but is responsible for gut damage leading to several complications such as bloodstream infection (BSI). We aimed to investigate the impact of induction chemotherapy on the intestinal barrier of patients with AML and in wild-type mice. Next, we assessed the potential benefit of strengthening the mucosal barrier in transgenic mice releasing a recombinant protein able to reinforce the mucus layer (Tg222). In patients, we observed a decrease of plasma citrulline, which is a marker of the functional enterocyte mass, of short-chain fatty acids and of fecal bacterial load, except for Escherichia coli and Enterococcus spp., which became dominant. Both the α and β-diversities of fecal microbiota decreased. In wild-type mice, citrulline levels decreased under chemotherapy along with an increase of E. coli and Enterococcus spp load associated with concomitant histologic impairment. By comparison with wild-type mice, Tg222 mice, 3 days after completing chemotherapy, had higher citrulline levels, a faster healing epithelium, and preserved α-diversity of their intestinal microbiota. This was associated with reduced bacterial translocations. Our results highlight the intestinal damage and the dysbiosis induced by the 7 + 3 regimen. As a proof of concept, our transgenic model suggests that strengthening the intestinal barrier is a promising approach to limit BSI and improve AML patients' outcome.
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Affiliation(s)
- Thomas Hueso
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France
| | - Kenneth Ekpe
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Camille Mayeur
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Anna Gatse
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France
| | | | - Guillaume Gricourt
- NGS Platform, IMRB, CHU Henri Mondor, Créteil, France,Institut Mondor de Recherche Biomédicale, Inserm U955, Créteil, France
| | - Christophe Rodriguez
- NGS Platform, IMRB, CHU Henri Mondor, Créteil, France,Institut Mondor de Recherche Biomédicale, Inserm U955, Créteil, France
| | - Charles Burdet
- School of Medicine, EA3964 University of Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Guillaume Ulmann
- Department of Biochemistry, Cochin Hospital – HUPC, Paris, France
| | - Christel Neut
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France
| | - Salah-Eddine Amini
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France
| | - Patricia Lepage
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Bruno Raynard
- Nutrition Department, Gustave Roussy Cancer Centre, F-94805, Villejuif, France
| | - Christophe Willekens
- Hematology Departement, Gustave Roussy Cancer Centre, F-94805, Villejuif, France
| | - Jean-Baptiste Micol
- Hematology Departement, Gustave Roussy Cancer Centre, F-94805, Villejuif, France
| | - Stéphane De Botton
- Hematology Departement, Gustave Roussy Cancer Centre, F-94805, Villejuif, France
| | - Ibrahim Yakoub-Agha
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France,Allogeneic Stem Cell Department, CHU Lille, Lille, France
| | - Frédéric Gottrand
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France
| | - Jean-Luc Desseyn
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France
| | - Muriel Thomas
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Paul-Louis Woerther
- Department of Microbiology and Infection Control, Henri-Mondor Hospital, Créteil, France,EA 7380 Dynamyc, EnvA, UPEC, Paris-Est University, Créteil, France
| | - David Seguy
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France,Nutrition Unit, CHU Lille, Lille, France,CONTACT David Seguy Nutrition Unit, Claude Huriez Hospital, F-59000 Lille, Lille, France
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102
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IL-18 binding protein (IL-18BP) as a novel radiation countermeasure after radiation exposure in mice. Sci Rep 2020; 10:18674. [PMID: 33122671 PMCID: PMC7596073 DOI: 10.1038/s41598-020-75675-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 10/07/2020] [Indexed: 12/22/2022] Open
Abstract
Recent studies suggested that radiation exposure causes local and systemic inflammatory responses and induces cell and tissue damage. We have reported that IL-18 plays an important role in radiation-induced injury. Here, we demonstrate that IL-18 binding protein (IL-18BP), a natural antagonist of IL-18, was significantly increased (1.7-63 fold) in mouse serum on day 1 after 0.5-10 Gy TBI. However, this high level of IL-18BP was not sufficient to neutralize the active IL-18 in irradiated mice, resulting in a radiation dose-dependent free IL-18 increase in these mice's serum which led to pathological alterations to the irradiated cells and tissues and finally caused animal death. Administration of recombinant human (rh) IL-18BP (1.5 mg/kg) with single (24, 48 or 72 h post-TBI) or double doses (48 h and 5 days post-TBI) subcutaneous (SC) injection increased 30-day survival of CD2F1 mice after 9 Gy TBI 12.5-25% compared with the vehicle control treated group, respectively. Furthermore, the mitigative effects of rhIL-18BP included balancing the ratio of IL-18/IL-18BP and decreasing the free IL-18 levels in irradiated mouse serum and significantly increasing blood cell counts, BM hematopoietic cellularity and stem and progenitor cell clonogenicity in mouse BM. Furthermore, IL-18BP treatment inhibited the IL-18 downstream target interferon (IFN)-γ expression in mouse BM, decreased reactive oxygen species (ROS) level in the irradiated mouse heart tissues, attenuated the stress responsive factor GDF-15 (growth differentiation factor-15) and increased the intestine protector citrulline level in total body irradiated mouse serum, implicating that IL-18BP may protect multiple organs from radiation-induced inflammation and oxidative stress. Our data suggest that IL-18 plays a key role in radiation-induced cell and tissue damage and dysfunction; and for the first time demonstrated that IL-18BP counters IL-18 activation and therefore may mitigate/treat radiation-induced multiple organ injuries and increase animal survival with a wider therapeutic window from 24 h and beyond after lethal doses of radiation exposure.
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103
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Metabolomic profiles associated with a mouse model of antipsychotic-induced food intake and weight gain. Sci Rep 2020; 10:18581. [PMID: 33122657 PMCID: PMC7596057 DOI: 10.1038/s41598-020-75624-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/09/2020] [Indexed: 12/12/2022] Open
Abstract
Antipsychotic drugs (AP) are used to treat a multitude of psychiatric conditions including schizophrenia and bipolar disorder. However, APs also have metabolic side effects including increased food intake and body weight, but the underlying mechanisms remain unknown. We previously reported that minocycline (MINO) co-treatment abrogates olanzapine (OLZ)-induced hyperphagia and weight gain in mice. Using this model, we investigated the changes in the pharmacometabolome in the plasma and hypothalamus associated with OLZ-induced hyperphagia and weight gain. Female C57BL/6 mice were divided into groups and fed either i) control, CON (45% fat diet) ii) CON + MINO, iii) OLZ (45% fat diet with OLZ), iv) OLZ + MINO. We identified one hypothalamic metabolite indoxylsulfuric acid and 389 plasma metabolites (including 19 known metabolites) that were specifically associated with AP-induced hyperphagia and weight gain in mice. We found that plasma citrulline, tricosenoic acid, docosadienoic acid and palmitoleic acid were increased while serine, asparagine and arachidonic acid and its derivatives were decreased in response to OLZ. These changes were specifically blocked by co-treatment with MINO. These pharmacometabolomic profiles associated with AP-induced hyperphagia and weight gain provide candidate biomarkers and mechanistic insights related to the metabolic side effects of these widely used drugs.
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104
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Maric S, Flüchter P, Guglielmetti LC, Staerkle RF, Sasse T, Restin T, Schneider C, Holland-Cunz SG, Crenn P, Vuille-Dit-Bille RN. Plasma citrulline correlates with basolateral amino acid transporter LAT4 expression in human small intestine. Clin Nutr 2020; 40:2244-2251. [PMID: 33077272 PMCID: PMC7546687 DOI: 10.1016/j.clnu.2020.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Plasma citrulline, a non-protein amino acid, is a biochemical marker of small intestine enterocyte mass in humans. Indeed, citrulline is highly correlated with residual bowel length in patients with short bowel syndrome. It is known to be synthesised in epithelial cells of the small intestine from other amino acids (precursors). Citrulline is then released into systemic circulation and interconverted into arginine in kidneys. If plasma citrulline concentration depends on abundance of intestinal amino acid transporters is not known. The aim of the present study was to explore whether plasma citrulline concentration correlates with the expression of intestinal amino acid transporters. Furthermore, we assessed if arginine in urine correlates with plasma citrulline. METHODS Duodenal samples, blood plasma and urine were collected from 43 subjects undergoing routine gastroduodenoscopy. mRNA expression of seven basolateral membrane amino acid transporters/transporter subunits were assessed by real-time PCR. Plasma and urine amino acid concentrations of citrulline, its precursors and other amino acids were analysed using High Performance Liquid Chromatography measurements. Amino acid transporter mRNA expression was correlated with blood plasma and urine levels of citrulline and its precursors using Spearman's rank correlation. Likewise, urine arginine was correlated with plasma citrulline. RESULTS Plasma citrulline correlated with the mRNA expression of basolateral amino acid transporter LAT4 (Spearman's r = 0.467, p = 0.028) in small intestine. None of the other basolateral membrane transporters/transporter subunits assessed correlated with plasma citrulline. Plasma citrulline correlated with urinary arginine, (Spearman's r = 0.419, p = 0.017), but not with urinary citrulline or other proteinogenic amino acids in the urine. CONCLUSIONS In this study, we showed for the first time that small intestinal basolateral LAT4 expression correlates with plasma citrulline concentration. This finding indicates that LAT4 has an important function in mediating citrulline efflux from enterocytes. Furthermore, urine arginine correlated with plasma citrulline, indicating arginine in the urine as possible additional marker for small intestine enterocyte mass. Finally, basolateral LAT4 expression along the human small intestine was shown for the first time.
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Affiliation(s)
- Stefano Maric
- University of Basel, School of Medicine, Basel, Switzerland
| | | | | | - Ralph Fabian Staerkle
- Clarunis, University Center for Gastrointestinal and Liver Diseases, Basel, Switzerland
| | - Tom Sasse
- Department of Cardiology, University Hospital of Zurich, Switzerland
| | - Tanja Restin
- Institute of Physiology, University of Zurich, Switzerland; Newborn Research Zurich, Department of Neonatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | | | | | - Pascal Crenn
- Hepato-gastroenterology and Nutrition, Hôpital Ambroise Paré, APHP-Université Paris Saclay, Boulogne Billancourt, France
| | - Raphael Nicolas Vuille-Dit-Bille
- Institute of Physiology, University of Zurich, Switzerland; Department of Pediatric Surgery, University Children's Hospital of Basel, Switzerland.
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105
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Pattanakitsakul P, Chongviriyaphan N, Pakakasama S, Apiwattanakul N. Effect of vitamin A on intestinal mucosal injury in pediatric patients receiving hematopoietic stem cell transplantation and chemotherapy: a quasai-randomized trial. BMC Res Notes 2020; 13:464. [PMID: 33008464 PMCID: PMC7532573 DOI: 10.1186/s13104-020-05307-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/24/2020] [Indexed: 12/11/2022] Open
Abstract
Objective Vitamin A is involved in maintenance of gut mucosal integrity and normal immune function. However, it is unclear whether these functions of vitamin A have any beneficial effects in patients undergoing hematopoietic stem cell transplantation (HSCT). In this study, we aimed to examine the potential protective effect of vitamin A supplementation on gastrointestinal (GI) mucosal integrity in HSCT recipients using plasma citrulline as a surrogate marker of intestinal integrity. Results We performed a quasi-randomized trial in 30 pediatric patients undergoing HSCT. Half (n = 15) of the patients received a single high dose of vitamin A (200,000 IU) before the conditioning regimen was given, and half (n = 15) did not. Clinical data of patients who developed post-transplant complications were recorded for 60 days after HSCT. There were no significant differences in mean plasma citrulline levels on day 7 after HSCT between the treatment and control groups (5.8 vs. 5.9 µmol/L, respectively). The incidence of mucositis and other complications were not different between the two groups within 60 days of HSCT. Vitamin A supplementation prior to HSCT in pediatric patients had no clinical benefit in protecting GI mucosal integrity.
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Affiliation(s)
- Ploy Pattanakitsakul
- Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Bangkok, 10400, Thailand
| | - Nalinee Chongviriyaphan
- Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Bangkok, 10400, Thailand
| | - Samart Pakakasama
- Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Bangkok, 10400, Thailand
| | - Nopporn Apiwattanakul
- Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Bangkok, 10400, Thailand.
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106
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Uzzan M, Soudan D, Peoc'h K, Weiss E, Corcos O, Treton X. Patients with COVID-19 present with low plasma citrulline concentrations that associate with systemic inflammation and gastrointestinal symptoms. Dig Liver Dis 2020; 52:1104-1105. [PMID: 32646736 PMCID: PMC7332957 DOI: 10.1016/j.dld.2020.06.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Mathieu Uzzan
- Gastroenterology department, Beaujon Hospital, APHP, Clichy, France.
| | - Damien Soudan
- Gastroenterology department, Beaujon Hospital, APHP, Clichy, France
| | - Katell Peoc'h
- Biochemistry department, Beaujon Hospital, APHP, Clichy, France; CRI, INSERM UMRs 1149 and University of Paris, Paris, France
| | - Emmanuel Weiss
- Intensive care unit, Beaujon Hospital, APHP, Clichy, France
| | - Olivier Corcos
- Gastroenterology department, Beaujon Hospital, APHP, Clichy, France
| | - Xavier Treton
- Gastroenterology department, Beaujon Hospital, APHP, Clichy, France; CRI, INSERM UMRs 1149 and University of Paris, Paris, France
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107
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Kartaram SW, van Norren K, Schoen E, Teunis M, Mensink M, Verschuren M, M'Rabet L, Besseling-van der Vaart I, Mohrmann K, Wittink H, Garssen J, Witkamp R, Pieters R. Kinetics of Physiological Responses as a Measure of Intensity and Hydration Status During Experimental Physical Stress in Human Volunteers. Front Physiol 2020; 11:1006. [PMID: 33013439 PMCID: PMC7498705 DOI: 10.3389/fphys.2020.01006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 07/24/2020] [Indexed: 11/13/2022] Open
Abstract
Introduction Strenuous physical stress induces a range of physiological responses, the extent depending, among others, on the nature and severity of the exercise, a person's training level and overall physical resilience. This principle can also be used in an experimental set-up by measuring time-dependent changes in biomarkers for physiological processes. In a previous report, we described the effects of workload delivered on a bicycle ergometer on intestinal functionality. As a follow-up, we here describe an analysis of the kinetics of various other biomarkers. Aim To analyse the time-dependent changes of 34 markers for different metabolic and immunological processes, comparing four different exercise protocols and a rest protocol. Methods After determining individual maximum workloads, 15 healthy male participants (20-35 years) started with a rest protocol and subsequently performed (in a cross-over design with 1-week wash-out) four exercise protocols of 1-h duration at different intensities: 70% W max in a hydrated and a mildly dehydrated state, 50% W max and intermittent 85/55% W max in blocks of 2 min. Perceived exertion was monitored using the Borg' Rating of Perceived Exertion scale. Blood samples were collected both before and during exercise, and at various timepoints up to 24 h afterward. Data was analyzed using a multilevel mixed linear model with multiple test correction. Results Kinetic changes of various biomarkers were exercise-intensity-dependent. Biomarkers included parameters indicative of metabolic activity (e.g., creatinine, bicarbonate), immunological and hematological functionality (e.g., leukocytes, hemoglobin) and intestinal physiology (citrulline, intestinal fatty acid-binding protein, and zonulin). In general, responses to high intensity exercise of 70% W max and intermittent exercise i.e., 55/85% W max were more pronounced compared to exercise at 50% W max . Conclusion High (70 and 55/85% W max ) and moderate (50% W max ) intensity exercise in a bicycle ergometer test produce different time-dependent changes in a broad range of parameters indicative of metabolic activity, immunological and hematological functionality and intestinal physiology. These parameters may be considered biomarkers of homeostatic resilience. Mild dehydration intensifies these time-related changes. Moderate intensity exercise of 50% W max shows sufficient physiological and immunological responses and can be employed to test the health condition of less fit individuals.
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Affiliation(s)
- Shirley W Kartaram
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, Netherlands
| | - Klaske van Norren
- Department of Nutritional Biology, Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, Netherlands
| | - Eric Schoen
- Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Marc Teunis
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, Netherlands
| | - Marco Mensink
- Department of Nutritional Biology, Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, Netherlands
| | - Martie Verschuren
- Research Group Analysis Techniques in Life Sciences, Avans University of Applied Sciences, Breda, Netherlands
| | - Laura M'Rabet
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, Netherlands
| | | | | | - Harriet Wittink
- Research Group Lifestyle and Health, University of Applied Sciences Utrecht, Utrecht, Netherlands
| | - Johan Garssen
- Department of Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Nutricia Research, Utrecht, Netherlands
| | - Renger Witkamp
- Department of Nutritional Biology, Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, Netherlands
| | - Raymond Pieters
- Research Group Innovative Testing in Life Sciences and Chemistry, University of Applied Sciences Utrecht, Utrecht, Netherlands.,Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, Netherlands
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108
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Lim HJ, Jang YJ, Lee KH, Kim DM. Translational Detection of Nonproteinogenic Amino Acids Using an Engineered Complementary Cell-Free Protein Synthesis Assay. Anal Chem 2020; 92:11505-11510. [PMID: 32794704 DOI: 10.1021/acs.analchem.0c01978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We developed a simple and rapid method for analyzing nonproteinogenic amino acids that does not require conventional chromatographic equipment. In this technique, nonproteinogenic amino acids were first converted to a proteinogenic amino acid through in vitro metabolism in a cell extract. The proteinogenic amino acid generated from the nonproteinogenic precursors were then incorporated into a reporter protein using a cell-free protein synthesis system. The titers of the nonproteinogenic amino acids could be readily quantified by measuring the activity of reporter proteins. This method, which combines the enzymatic conversion of target amino acids with translational analysis, makes amino acid analysis more accessible while minimizing the cost and time requirements. We anticipate that the same strategy could be extended to the detection of diverse biochemical molecules with clinical and industrial implications.
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Affiliation(s)
- Hye Jin Lim
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Yeon Jae Jang
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Kyung-Ho Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Dong-Myung Kim
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
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109
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Greig CJ, Zhang L, Cowles RA. Potentiated serotonin signaling in serotonin re-uptake transporter knockout mice increases enterocyte mass and small intestinal absorptive function. Physiol Rep 2020; 7:e14278. [PMID: 31724827 PMCID: PMC6854605 DOI: 10.14814/phy2.14278] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/28/2019] [Accepted: 09/30/2019] [Indexed: 12/11/2022] Open
Abstract
Genetic knockout of the serotonin reuptake transporter (SERT) potentiates serotonin signaling and increases crypt‐cell proliferation, neuroplasticity, and mucosal surface area. However, it remains unknown whether these changes occur throughout the small intestine and whether they increase nutrient absorption. We hypothesized that serotonin‐mediated mucosal growth would occur throughout the intestine and would increase enterocyte mass and absorptive function. Following institutional approval, intestinal segments spanning the bowel were harvested from 10 to 12 week‐old SERT knockout (SERTKO) and wild‐type (WT) C57Bl/6 mice. Histologic sections were used to measure villus height (VH), crypt depth (CD), and crypt proliferation index (CPI). Plasma citrulline was measured colorimetrically. Glucose and peptide absorption in isolated segments of small bowel were calculated using a previously described method for quantification after luminal instillation of substrate. At baseline, morphometric (VH/CD) and proliferative (CPI) parameters varied from jejunum to ileum. Enhanced 5‐HT signaling significantly increased plasma citrulline levels and morphometric/proliferative parameters in all regions analyzed. Glucose absorption in WT mice varied throughout the small intestine, and SERTKO mice demonstrated significant increases in the middle and distal bowel. WT peptide absorption was similar throughout the small bowel, and SERTKO mice had significant increases in the proximal and distal bowel. Enhanced serotonin signaling results in increased morphometric and proliferative parameters throughout the small intestine, and results in increased enterocyte mass and intestinal absorptive function. These data further advance the concept that the serotonin system is an attractive therapeutic target for increasing functional intestinal mucosa.
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Affiliation(s)
- Chasen J Greig
- Section of Pediatric Surgery, Department of Surgery, Yale School of Medicine, New Haven, Connecticut
| | - Lucy Zhang
- Section of Pediatric Surgery, Department of Surgery, Yale School of Medicine, New Haven, Connecticut
| | - Robert A Cowles
- Section of Pediatric Surgery, Department of Surgery, Yale School of Medicine, New Haven, Connecticut
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110
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Schoultz I, Keita ÅV. The Intestinal Barrier and Current Techniques for the Assessment of Gut Permeability. Cells 2020; 9:E1909. [PMID: 32824536 PMCID: PMC7463717 DOI: 10.3390/cells9081909] [Citation(s) in RCA: 215] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/07/2020] [Accepted: 08/14/2020] [Indexed: 02/08/2023] Open
Abstract
The intestinal barrier is essential in human health and constitutes the interface between the outside and the internal milieu of the body. A functional intestinal barrier allows absorption of nutrients and fluids but simultaneously prevents harmful substances like toxins and bacteria from crossing the intestinal epithelium and reaching the body. An altered intestinal permeability, a sign of a perturbed barrier function, has during the last decade been associated with several chronic conditions, including diseases originating in the gastrointestinal tract but also diseases such as Alzheimer and Parkinson disease. This has led to an intensified interest from researchers with diverse backgrounds to perform functional studies of the intestinal barrier in different conditions. Intestinal permeability is defined as the passage of a solute through a simple membrane and can be measured by recording the passage of permeability markers over the epithelium via the paracellular or the transcellular route. The methodological tools to investigate the gut barrier function are rapidly expanding and new methodological approaches are being developed. Here we outline and discuss, in vivo, in vitro and ex vivo techniques and how these methods can be utilized for thorough investigation of the intestinal barrier.
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Affiliation(s)
- Ida Schoultz
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 703 62 Örebro, Sweden;
| | - Åsa V. Keita
- Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden
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111
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Integration of Serum Metabolomics into Clinical Assessment to Improve Outcome Prediction of Metastatic Soft Tissue Sarcoma Patients Treated with Trabectedin. Cancers (Basel) 2020; 12:cancers12071983. [PMID: 32708128 PMCID: PMC7409362 DOI: 10.3390/cancers12071983] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/13/2022] Open
Abstract
Soft tissue sarcomas (STS) are a group of rare and heterogeneous cancers with few diagnostic or prognostic biomarkers. This metabolomics study aimed to identify new serum prognostic biomarkers to improve the prediction of overall survival in patients with metastatic STS. The study enrolled 24 patients treated with the same trabectedin regimen. The baseline serum metabolomics profile, targeted to 68 metabolites encompassing amino acids and bile acids pathways, was quantified by liquid chromatography-tandem mass spectrometry. Correlations between individual metabolomics profiles and overall survival were examined and a risk model to predict survival was built by Cox multivariate regression. The median overall survival of the studied patients was 13.0 months (95% CI, 5.6–23.5). Among all the metabolites investigated, only citrulline and histidine correlated significantly with overall survival. The best Cox risk prediction model obtained integrating metabolomics and clinical data, included citrulline, hemoglobin and patients’ performance status score. It allowed to distinguish patients into a high-risk group with a low median overall survival of 2.1 months and a low- to moderate-risk group with a median overall survival of 19.1 months (p < 0.0001). The results of this metabolomics translation study indicate that citrulline, an amino acid belonging to the arginine metabolism, represents an important metabolic signature that may contribute to explain the high inter-patients overall survival variability of STS patients. The risk prediction model based on baseline serum citrulline, hemoglobin and performance status may represent a new prognostic tool for the early classification of patients with metastatic STS, according to their overall survival expectancy.
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Ye F, Ning J, Fardous Z, Katsube T, Li Q, Wang B. Citrulline, A Potential Biomarker of Radiation-Induced Small Intestine Damage. Dose Response 2020; 18:1559325820962341. [PMID: 33013253 PMCID: PMC7513408 DOI: 10.1177/1559325820962341] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 08/20/2020] [Accepted: 08/31/2020] [Indexed: 12/25/2022] Open
Abstract
Radiation damage assessment of the small intestine is important in nuclear accidents or routine radiotherapy of abdominal tumors. This article reviews the clinical symptoms and molecular mechanisms of radiation-induced small intestinal damage and summarizes recent research on biomarkers of such damage. Citrulline is the most promising biomarker for the evaluation of radiation-induced small intestinal damage caused by radiotherapy and nuclear accidents. This article also summarizes the factors influencing plasma citrulline measurement investigated in the latest research, as well as new findings on the concentration of citrulline in saliva and urine after different types of radiation.
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Affiliation(s)
- Fei Ye
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, People’s Republic of
China
| | - Jing Ning
- Gansu Provincial Hospital, Lanzhou, People’s Republic of China
| | - Zeenath Fardous
- Institute of Food and Radiation
Biology, Atomic Energy Research Establishment, Bangladesh Atomic Energy
Commission, Dhaka, Bangladesh
| | - Takanori Katsube
- National Institute of Radiological Sciences, National Institutes
for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, People’s Republic of
China
| | - Bing Wang
- National Institute of Radiological Sciences, National Institutes
for Quantum and Radiological Science and Technology, Chiba, Japan
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113
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Intestinal permeability in participants with thermal injury: A case series from a prospective, longitudinal study (HESTIA). BURNS OPEN 2020. [DOI: 10.1016/j.burnso.2020.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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114
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Behaviour of plasma citrulline after bariatric surgery in the BARIASPERM cohort. Clin Nutr 2020; 40:505-510. [PMID: 32891457 DOI: 10.1016/j.clnu.2020.05.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 05/28/2020] [Accepted: 05/30/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Plasma citrulline is currently used in clinical practice as a marker of small bowel functional mass. Behaviour of plasma citrulline after bariatric surgery and its link with post-operative outcome are still poorly understood. OBJECTIVE Primary objective was to compare plasma citrulline 12 months after two types of bariatric surgery with pre-operative concentrations. Secondary objectives were to search for correlation between plasma citrulline variation and body weight and fat mass loss. DESIGN This is an ancillary study of the BARIASPERM study. Forty-six adult men (mean age 38.9 ± 7.9 years) who underwent gastric bypass (GB, n = 20) or sleeve gastrectomy (SG, n = 26) were included in this prospective study. Plasma citrulline was measured at baseline, 6 months and 12 months after surgery, as well as total body weight and fat mass measured by dual x-ray absorptiometry (DEXA). RESULTS Plasma citrulline increased significantly 12 months after surgery, both after gastric bypass and sleeve gastrectomy (respectively 30.2% [18.3-42.2] and 17.8% [5.8-29.7]). The increase was significantly higher after GB than after SG (p = 0.02) while total body weight and fat mass loss were not significantly different between GB and SG. The increase in plasma citrulline levels tended to be positively correlated with both weight and fat mass loss however the association did not reach statistical significance (p = 0.07 and p = 0.06 respectively). CONCLUSION These results confirm the increase in plasma citrulline after GB published in two previous small studies. Citrulline also significantly increased after SG, and in spite of similar weight loss obtained with both surgery types, citrulline increase was higher after GB than SG. This suggests different modifications of intestinal functional mass after these two different techniques.
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Reintam Blaser A, Preiser JC, Fruhwald S, Wilmer A, Wernerman J, Benstoem C, Casaer MP, Starkopf J, van Zanten A, Rooyackers O, Jakob SM, Loudet CI, Bear DE, Elke G, Kott M, Lautenschläger I, Schäper J, Gunst J, Stoppe C, Nobile L, Fuhrmann V, Berger MM, Oudemans-van Straaten HM, Arabi YM, Deane AM. Gastrointestinal dysfunction in the critically ill: a systematic scoping review and research agenda proposed by the Section of Metabolism, Endocrinology and Nutrition of the European Society of Intensive Care Medicine. Crit Care 2020; 24:224. [PMID: 32414423 PMCID: PMC7226709 DOI: 10.1186/s13054-020-02889-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/13/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Gastrointestinal (GI) dysfunction is frequent in the critically ill but can be overlooked as a result of the lack of standardization of the diagnostic and therapeutic approaches. We aimed to develop a research agenda for GI dysfunction for future research. We systematically reviewed the current knowledge on a broad range of subtopics from a specific viewpoint of GI dysfunction, highlighting the remaining areas of uncertainty and suggesting future studies. METHODS This systematic scoping review and research agenda was conducted following successive steps: (1) identify clinically important subtopics within the field of GI function which warrant further research; (2) systematically review the literature for each subtopic using PubMed, CENTRAL and Cochrane Database of Systematic Reviews; (3) summarize evidence for each subtopic; (4) identify areas of uncertainty; (5) formulate and refine study proposals that address these subtopics; and (6) prioritize study proposals via sequential voting rounds. RESULTS Five major themes were identified: (1) monitoring, (2) associations between GI function and outcome, (3) GI function and nutrition, (4) management of GI dysfunction and (5) pathophysiological mechanisms. Searches on 17 subtopics were performed and evidence summarized. Several areas of uncertainty were identified, six of them needing consensus process. Study proposals ranked among the first ten included: prevention and management of diarrhoea; management of upper and lower feeding intolerance, including indications for post-pyloric feeding and opioid antagonists; acute gastrointestinal injury grading as a bedside tool; the role of intra-abdominal hypertension in the development and monitoring of GI dysfunction and in the development of non-occlusive mesenteric ischaemia; and the effect of proton pump inhibitors on the microbiome in critical illness. CONCLUSIONS Current evidence on GI dysfunction is scarce, partially due to the lack of precise definitions. The use of core sets of monitoring and outcomes are required to improve the consistency of future studies. We propose several areas for consensus process and outline future study projects.
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Affiliation(s)
- Annika Reintam Blaser
- Department of Anaesthesiology and Intensive Care, University of Tartu, Tartu, Estonia
- Department of Intensive Care Medicine, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Jean-Charles Preiser
- Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Sonja Fruhwald
- Department of Anaesthesiology and Intensive Care Medicine, Division of Anesthesiology for Cardiovascular Surgery and Intensive Care Medicine, Medical University of Graz, Graz, Austria
| | - Alexander Wilmer
- Department of Medical Intensive Care, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Jan Wernerman
- Department of Anaesthesiology and Intensive Care Medicine, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Carina Benstoem
- Department of Intensive Care Medicine, Medical Faculty RWTH Aachen University, Aachen, Germany
- Cardiovascular Critical Care & Anesthesia Research and Evaluation (3CARE), Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Michael P. Casaer
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Joel Starkopf
- Department of Anaesthesiology and Intensive Care, University of Tartu, Tartu, Estonia
- Department of Anaesthesiology and Intensive Care, Tartu University Hospital, Tartu, Estonia
| | - Arthur van Zanten
- Department of Intensive Care Medicine, Gelderse Vallei Hospital, Ede, The Netherlands
| | - Olav Rooyackers
- Department of Anesthesiology and Intensive Care, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Stephan M. Jakob
- Department of Intensive Care Medicine, Inselspital, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Cecilia I. Loudet
- Department of Intensive Care, Hospital Interzonal General de Agudos General San Martín, La Plata, Argentina
| | - Danielle E. Bear
- Departments of Critical Care and Nutrition and Dietetics, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
- Centre for Human and Applied Physiological Sciences, King’s College London, London, UK
| | - Gunnar Elke
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Matthias Kott
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ingmar Lautenschläger
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jörn Schäper
- Department of Anaesthesiology, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Jan Gunst
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Christian Stoppe
- Department of Intensive Care Medicine, Medical Faculty RWTH Aachen University, Aachen, Germany
| | - Leda Nobile
- Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Valentin Fuhrmann
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Medicine B, University of Münster, Münster, Germany
| | - Mette M. Berger
- Service of Adult Intensive Care Medicine and Burns, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | | | - Yaseen M. Arabi
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS) and King Abdullah International Medical Research Center (KAIMRC), Riyadh, Saudi Arabia
| | - Adam M. Deane
- The University of Melbourne, Department of Medicine, Royal Melbourne Hospital, Parkville, Victoria 3050 Australia
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Adamovsky O, Buerger AN, Vespalcova H, Sohag SR, Hanlon AT, Ginn PE, Craft SL, Smatana S, Budinska E, Persico M, Bisesi JH, Martyniuk CJ. Evaluation of Microbiome-Host Relationships in the Zebrafish Gastrointestinal System Reveals Adaptive Immunity Is a Target of Bis(2-ethylhexyl) Phthalate (DEHP) Exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5719-5728. [PMID: 32255618 DOI: 10.1021/acs.est.0c00628] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
To improve physical characteristics of plastics such as flexibility and durability, producers enrich materials with phthalates such as di-2-(ethylhexyl) phthalate (DEHP). DEHP is a high production volume chemical associated with metabolic and immune disruption in animals and humans. To reveal mechanisms implicated in phthalate-related disruption in the gastrointestinal system, male and female zebrafish were fed DEHP (3 ppm) daily for two months. At the transcriptome level, DEHP significantly upregulated gene networks in the intestine associated with helper T cells' (Th1, Th2, and Th17) specific pathways. The activation of gene networks associated with adaptive immunity was linked to the suppression of networks for tight junction, gap junctional intercellular communication, and transmembrane transporters, all of which are precursors for impaired gut integrity and performance. On a class level, DEHP exposure increased Bacteroidia and Gammaproteobacteria and decreased Verrucomicrobiae in both the male and female gastrointestinal system. Further, in males there was a relative increase in Fusobacteriia and Betaproteobacteria and a relative decrease in Saccharibacteria. Predictive algorithms revealed that the functional shift in the microbiome community, and the metabolites they produce, act to modulate intestinal adaptive immunity. This finding suggests that the gut microbiota may contribute to the adverse effects of DEHP on the host by altering metabolites sensed by both intestinal and immune Th cells. Our results suggest that the microbiome-gut-immune axis can be modified by DEHP and emphasize the value of multiomics approaches to study microbiome-host interactions following chemical perturbations.
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Affiliation(s)
- Ondrej Adamovsky
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Brno, Czech Republic
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, UF Genetics Institute, College of Veterinary Medicine, University of Florida, Gainesville, Florida 32611, United States
| | - Amanda N Buerger
- Department of Environmental and Global Health and Center for Environmental and Human Toxicology, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, United States
| | - Hana Vespalcova
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Brno, Czech Republic
| | - Shahadur R Sohag
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, UF Genetics Institute, College of Veterinary Medicine, University of Florida, Gainesville, Florida 32611, United States
| | - Amy T Hanlon
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, UF Genetics Institute, College of Veterinary Medicine, University of Florida, Gainesville, Florida 32611, United States
| | - Pamela E Ginn
- Department of Comparative, Diagnostic and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, Florida, United States
| | - Serena L Craft
- Department of Comparative, Diagnostic and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, Florida, United States
| | - Stanislav Smatana
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Brno, Czech Republic
- Brno University of Technology, Faculty of Information Technology, IT4Innovations Centre of Excellence, Bozetechova 2, 61266 Brno, Czech Republic
| | - Eva Budinska
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Brno, Czech Republic
| | - Maria Persico
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Brno, Czech Republic
| | - Joseph H Bisesi
- Department of Environmental and Global Health and Center for Environmental and Human Toxicology, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, United States
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, UF Genetics Institute, College of Veterinary Medicine, University of Florida, Gainesville, Florida 32611, United States
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Pimentel G, Burnand D, Münger LH, Pralong FP, Vionnet N, Portmann R, Vergères G. Identification of Milk and Cheese Intake Biomarkers in Healthy Adults Reveals High Interindividual Variability of Lewis System-Related Oligosaccharides. J Nutr 2020; 150:1058-1067. [PMID: 32133503 PMCID: PMC7198293 DOI: 10.1093/jn/nxaa029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/03/2020] [Accepted: 01/29/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The use of biomarkers of food intake (BFIs) in blood and urine has shown great promise for assessing dietary intake and complementing traditional dietary assessment tools whose use is prone to misreporting. OBJECTIVE Untargeted LC-MS metabolomics was applied to identify candidate BFIs for assessing the intake of milk and cheese and to explore the metabolic response to the ingestion of these foods. METHODS A randomized controlled crossover study was conducted in healthy adults [5 women, 6 men; age: 23.6 ± 5.0 y; BMI (kg/m2): 22.1 ± 1.7]. After a single isocaloric intake of milk (600 mL), cheese (100 g), or soy-based drink (600 mL), serum and urine samples were collected postprandially up to 6 h and after fasting after 24 h. Untargeted metabolomics was conducted using LC-MS. Discriminant metabolites were selected in serum by multivariate statistical analysis, and their mass distribution and postprandial kinetics were compared. RESULTS Serum metabolites discriminant for cheese intake had a significantly lower mass distribution than metabolites characterizing milk intake (P = 4.1 × 10-4). Candidate BFIs for milk or cheese included saccharides, a hydroxy acid, amino acids, amino acid derivatives, and dipeptides. Two serum oligosaccharides, blood group H disaccharide (BGH) and Lewis A trisaccharide (LeA), specifically reflected milk intake but with high interindividual variability. The 2 oligosaccharides showed related but opposing trends: subjects showing an increase in either oligosaccharide did not show any increase in the other oligosaccharide. This result was confirmed in urine. CONCLUSIONS New candidate BFIs for milk or cheese could be identified in healthy adults, most of which were related to protein metabolism. The increase in serum of LeA and BGH after cow-milk intake in adults calls for further investigations considering the beneficial health effects on newborns of such oligosaccharides in maternal milk. The trial is registered at clinicaltrials.gov as NCT02705560.
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Affiliation(s)
- Grégory Pimentel
- Federal Department of Economic Affairs, Education, and Research, Agroscope, Bern, Switzerland
| | - David Burnand
- Federal Department of Economic Affairs, Education, and Research, Agroscope, Bern, Switzerland
| | - Linda H Münger
- Federal Department of Economic Affairs, Education, and Research, Agroscope, Bern, Switzerland
| | - François P Pralong
- Service of Endocrinology, Diabetes, and Metabolism, Lausanne University Hospital, Lausanne, Switzerland
| | - Nathalie Vionnet
- Service of Endocrinology, Diabetes, and Metabolism, Lausanne University Hospital, Lausanne, Switzerland
| | - Reto Portmann
- Federal Department of Economic Affairs, Education, and Research, Agroscope, Bern, Switzerland
| | - Guy Vergères
- Federal Department of Economic Affairs, Education, and Research, Agroscope, Bern, Switzerland
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Skoczeń S, Rej M, Kwiecińska K, Pietrys D, Tomasik PJ, Wójcik M, Strojny W, Dłużniewska A, Klimasz K, Fijorek K, Korostyński M, Piechota M, Balwierz W. Gastrointestinal peptides in children before and after hematopoietic stem cell transplantation. BMC Cancer 2020; 20:306. [PMID: 32293354 PMCID: PMC7161205 DOI: 10.1186/s12885-020-06790-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 03/26/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gastrointestinal tract function and it's integrity are controlled by a number of peptides whose secretion is influenced by severe inflammation. In stomach the main regulatory peptide is ghrelin. For upper small intestine cholecystokinin and lower small intestine glucagon-like peptide- 1 are secreted, while fibroblast growth factor-21 is secreted by several organs, including the liver, pancreas, and adipose tissue [12]. Hematopoietic stem cell transplantation causes serious mucosal damage, which can reflect on this peptides. METHODS The aim of the study was to determine fasting plasma concentrations of ghrelin, cholecystokinin, glucagon- like peptide-1, and fibroblast growth factor-21, and their gene expressions, before and 6 months after hematopoietic stem cell transplantation.27 children were studied, control group included 26 healthy children. RESULTS Acute graft versus host disease was diagnosed in 11 patients (41%, n = 27). Median pre-transplantation concentrations of gastrointestinal peptides, as well as their gene expressions, were significantly lower in studied group compared with the control group. Only median of fibroblast growth factor-21 concentration was near-significantly higher before stem cell transplantation than in the control group. The post-hematopoietic transplant results revealed significantly higher concentrations of the studied peptides (except fibroblast growth factor-21) and respective gene expressions as compare to pre transplant results. Median glucagone like peptide-1 concentrations were significantly decreased in patients with features of acute graft versus host disease. Moreover, negative correlation between glucagone like peptide-1 concentrations and acute graft versus host disease severity was found. CONCLUSIONS Increased concentrations and gene expressions of gastrointestinal tract regulation peptides can be caused by stimulation of regeneration in the severe injured organ. Measurement of these parameters may be a useful method of assessment of severity of gastrointestinal tract complications of hematopoietic stem cell transplantation.
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Affiliation(s)
- Szymon Skoczeń
- Department of Oncology and Hematology, University Children's Hospital in Krakow, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
| | - Magdalena Rej
- Department of Oncology and Hematology, University Children's Hospital in Krakow, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland.
| | - Kinga Kwiecińska
- Department of Oncology and Hematology, University Children's Hospital in Krakow, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
| | - Danuta Pietrys
- Department of Oncology and Hematology, University Children's Hospital in Krakow, Wielicka St. 265, 30-663, Krakow, Poland
| | - Przemysław J Tomasik
- Department of Clinical Biochemistry, University Children's Hospital in Krakow, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
| | - Małgorzata Wójcik
- Department of Pediatric and Adolescent Endocrinology, University Children's Hospital in Krakow, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
| | - Wojciech Strojny
- Department of Oncology and Hematology, University Children's Hospital in Krakow, Wielicka St. 265, 30-663, Krakow, Poland
| | - Agnieszka Dłużniewska
- Stem Cell Transplantation Center, University Children's Hospital in Krakow, Wielicka St. 265, 30-663, Krakow, Poland
| | - Katarzyna Klimasz
- Department of Biochemistry, University Children's Hospital in Krakow, Wielicka St. 265, 30-663, Krakow, Poland
| | - Kamil Fijorek
- Department of Statistics, Cracow University of Economics, 27 Rakowicka Str., 31-510, Krakow, Poland
| | - Michał Korostyński
- Department of Molecular Neuropharmacology, Institute of Pharmacology of Polish Academy of Sciences, 12 Smętna St., 31-343, Krakow, Poland
| | - Marcin Piechota
- Department of Molecular Neuropharmacology, Institute of Pharmacology of Polish Academy of Sciences, 12 Smętna St., 31-343, Krakow, Poland
| | - Walentyna Balwierz
- Department of Oncology and Hematology, University Children's Hospital in Krakow, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
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Giallourou N, Fardus-Reid F, Panic G, Veselkov K, McCormick BJJ, Olortegui MP, Ahmed T, Mduma E, Yori PP, Mahfuz M, Svensen E, Ahmed MMM, Colston JM, Kosek MN, Swann JR. Metabolic maturation in the first 2 years of life in resource-constrained settings and its association with postnatal growths. SCIENCE ADVANCES 2020; 6:eaay5969. [PMID: 32284996 PMCID: PMC7141821 DOI: 10.1126/sciadv.aay5969] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 01/14/2020] [Indexed: 05/10/2023]
Abstract
Malnutrition continues to affect the growth and development of millions of children worldwide, and chronic undernutrition has proven to be largely refractory to interventions. Improved understanding of metabolic development in infancy and how it differs in growth-constrained children may provide insights to inform more timely, targeted, and effective interventions. Here, the metabolome of healthy infants was compared to that of growth-constrained infants from three continents over the first 2 years of life to identify metabolic signatures of aging. Predictive models demonstrated that growth-constrained children lag in their metabolic maturity relative to their healthier peers and that metabolic maturity can predict growth 6 months into the future. Our results provide a metabolic framework from which future nutritional programs may be more precisely constructed and evaluated.
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Affiliation(s)
- N. Giallourou
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | - F. Fardus-Reid
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | - G. Panic
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | - K. Veselkov
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | | | - M. P. Olortegui
- Asociación Benéfica PRISMA, Unidad de Investigación Biomedica, Iquitos, Peru
| | - T. Ahmed
- International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - E. Mduma
- Haydom Global Health Institute, Haydom, Tanzania
| | - P. P. Yori
- Asociación Benéfica PRISMA, Unidad de Investigación Biomedica, Iquitos, Peru
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
| | - M. Mahfuz
- International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - E. Svensen
- Haydom Global Health Institute, Haydom, Tanzania
- Haukeland University Hospital, Bergen, Norway
| | - M. M. M. Ahmed
- International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - J. M. Colston
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - M. N. Kosek
- Asociación Benéfica PRISMA, Unidad de Investigación Biomedica, Iquitos, Peru
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
- Corresponding author.
| | - J. R. Swann
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
- School of Human Development and Health, Faculty of Medicine, University of Southampton, UK
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Abstract
GOALS The aim of this study was to determine a potential strategy to prevent acute pancreatitis (AP) from deteriorating in obese patients. BACKGROUND Nutritional support plays a critical role in the treatment of AP. Early enteral nutrition (EEN) is considered to be able to protect mucosa of AP patients and alleviate inflammatory reactions. Obesity worsen AP prognosis. However, little is known about the effects of EEN in obese patients. STUDY Prospective randomized control trial. Subjects with moderately severe AP or severe AP were divided into the visceral fat obesity (VFO) group and the non-VFO group by obesity index VFO. The patients received "delayed" enteral nutrition (started enteral nutrition feeding after the first 48 hours after admission to the hospital: group A: patients of non-VFO, n=108; group B: VFO patients, n=88) or EEN (in the VFO subgroup, group C: n=91).Occurrence of complication, clinical outcomes, plasma levels of cytokines, and intestine gut barrier index were measured at different timepoints after admission. RESULTS VFO was a risk factor for aggravating of AP. EEN prevented the VFO patients from developing pancreatic necrotic infection, the mechanism of which might be related with inhibiting excessive inflammatory reactions, adjusting the imbalance of inflammatory response, and alleviating ischemia of intestine mucosa. CONCLUSIONS The potential strategy, EEN, was able to prevent AP from deteriorating in obese patients.
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Gough EK, Moulton LH, Mutasa K, Ntozini R, Stoltzfus RJ, Majo FD, Smith LE, Panic G, Giallourou N, Jamell M, Kosek P, Swann JR, Humphrey JH, Prendergast AJ. Effects of improved water, sanitation, and hygiene and improved complementary feeding on environmental enteric dysfunction in children in rural Zimbabwe: A cluster-randomized controlled trial. PLoS Negl Trop Dis 2020; 14:e0007963. [PMID: 32059011 PMCID: PMC7046282 DOI: 10.1371/journal.pntd.0007963] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 02/27/2020] [Accepted: 11/27/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Environmental enteric dysfunction (EED) may be an important modifiable cause of child stunting. We described the evolution of EED biomarkers from birth to 18 months in rural Zimbabwe and tested the independent and combined effects of improved water, sanitation, and hygiene (WASH), and improved infant and young child feeding (IYCF), on EED. METHODOLOGY AND FINDINGS The Sanitation Hygiene Infant Nutrition Efficacy (SHINE) trial was a 2x2 factorial cluster-randomised trial of improved IYCF and improved WASH on child stunting and anaemia at 18 months of age. 1169 infants born to HIV-negative mothers provided plasma and faecal specimens at 1, 3, 6, 12, and 18 months of age. We measured EED biomarkers that reflect all domains of the hypothesized pathological pathway. Markers of intestinal permeability and intestinal inflammation declined over time, while markers of microbial translocation and systemic inflammation increased between 1-18 months. Markers of intestinal damage (I-FABP) and repair (REG-1β) mirrored each other, and citrulline (a marker of intestinal epithelial mass) increased from 6 months of age, suggesting dynamic epithelial turnover and regeneration in response to enteric insults. We observed few effects of IYCF and WASH on EED after adjustment for multiple comparisons. The WASH intervention decreased plasma IGF-1 at 3 months (β:0.89, 95%CI:0.81,0.98) and plasma kynurenine at 12 months (β: 0.92, 95%CI:0.87,0.97), and increased plasma IGF-1 at 18 months (β:1.15, 95%CI:1.05,1.25), but these small WASH effects did not translate into improved growth. CONCLUSIONS Overall, we observed dynamic trends in EED but few effects of IYCF or WASH on biomarkers during the first 18 months after birth, suggesting that these interventions did not impact EED. Transformative WASH interventions are required to prevent or ameliorate EED in low-income settings.
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Affiliation(s)
- Ethan K. Gough
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Lawrence H. Moulton
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Kuda Mutasa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Rebecca J. Stoltzfus
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, United States of America
| | - Florence D. Majo
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Laura E. Smith
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, United States of America
| | - Gordana Panic
- Department of Metabolism, Digestion and Reproduction, Division of Digestive Diseases, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Natasa Giallourou
- Department of Metabolism, Digestion and Reproduction, Division of Digestive Diseases, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Mark Jamell
- Pain Care Specialists of Oregon, Eugene, OR, United States of America
| | - Peter Kosek
- Pain Care Specialists of Oregon, Eugene, OR, United States of America
| | - Jonathan R. Swann
- Department of Metabolism, Digestion and Reproduction, Division of Digestive Diseases, Faculty of Medicine, Imperial College London, London, United Kingdom
- Department of Neuroscience, Karolinska Institute, Solna, Sweden
| | - Jean H. Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Andrew J. Prendergast
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Blizard Institute, Queen Mary University of London, London, United Kingdom
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Lambden S. Bench to bedside review: therapeutic modulation of nitric oxide in sepsis-an update. Intensive Care Med Exp 2019; 7:64. [PMID: 31792745 PMCID: PMC6888802 DOI: 10.1186/s40635-019-0274-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 10/11/2019] [Indexed: 12/17/2022] Open
Abstract
Nitric oxide is a signalling molecule with an extensive range of functions in both health and disease. Discovered in the 1980s through work that earned the Nobel prize, nitric oxide is an essential factor in regulating cardiovascular, immune, neurological and haematological function in normal homeostasis and in response to infection. Early work implicated exaggerated nitric oxide synthesis as a potentially important driver of septic shock; however, attempts to modulate production through global inhibition of nitric oxide synthase were associated with increased mortality. Subsequent work has shown that regulation of nitric oxide production is determined by numerous factors including substrate and co-factor availability and expression of endogenous regulators. In sepsis, nitric oxide synthesis is dysregulated with exaggerated production leading to cardiovascular dysfunction, bioenergetic failure and cellular toxicity whilst at the same time impaired microvascular function may be driven in part by reduced nitric oxide synthesis by the endothelium. This bench to bedside review summarises our current understanding of the ways in which nitric oxide production is regulated on a tissue and cellular level before discussing progress in translating these observations into novel therapeutic strategies for patients with sepsis.
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Affiliation(s)
- Simon Lambden
- Department of Medicine, Addenbrooke's Hospital, Cambridge University, 5th Floor, Cambridge, CB20QQ, UK.
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Locke A, Belsare S, Deutz N, Coté G. Aptamer-switching optical bioassay for citrulline detection at the point-of-care. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-6. [PMID: 31820595 PMCID: PMC7006037 DOI: 10.1117/1.jbo.24.12.127002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 11/15/2019] [Indexed: 05/27/2023]
Abstract
Researchers have found that decreased levels of circulating citrulline could be an indicator of intestinal failure. Typically, this amino acid, which is produced by the intestinal mucosa cells, circulates in the blood at a physiological level of ∼40 μM. The current methodology for measuring this level involves the use of bulky equipment, such as mass spectroscopy and analysis at a central laboratory, which can delay diagnosis. Therefore, the current detection method is unsuited for routine monitoring at a doctor's office. Our research group proposes the development of a point-of-care (POC) device to overcome this issue. The proposed device utilizes surface-enhanced Raman spectroscopy (SERS) coupled with a specifically designed aptamer, capable of binding to citrulline, conjugated to colloidal gold nanoparticles. The assay is then embedded within a vertical flow paper-fluidic platform as a deliverable at the POC, and a handheld Raman spectrometer (638-nm excitation) was used to interrogate the sample. Results showed good dynamic range and specificity with an average 73% decrease in SERS signal intensity with increasing concentrations of citrulline (0 to 50 μM) in phosphate-buffered saline compared to its controls: glycine, glutamine, histidine, and valine, which showed less than 10% average decrease in the presence of 200 μM of each analyte. Further, the limit of detection (LOD) within a chip was determined to be 0.56 μM, whereas the LOD across chips was below 10 μM.
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Affiliation(s)
- Andrea Locke
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station Center for Remote Health Technologies and Systems, Department of Biomedical Engineering, College Station, Texas, United States
| | - Sayali Belsare
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
| | - Nicolaas Deutz
- Texas A&M University, Center for Translational Research in Aging and Longevity, Department of Health and Kinesiology, College Station, Texas, United States
| | - Gerard Coté
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station Center for Remote Health Technologies and Systems, Department of Biomedical Engineering, College Station, Texas, United States
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Cinkajzlová A, Lacinová Z, Kloučková J, Kaválková P, Kratochvílová H, Křížová J, Trachta P, Mráz M, Haluzík M. Increased intestinal permeability in patients with short bowel syndrome is not affected by parenteral nutrition. Physiol Res 2019; 68:817-825. [PMID: 31424246 DOI: 10.33549/physiolres.934134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The aim of our study was to assess the presence and degree of intestinal leakage in subjects suffering from short bowel syndrome (SBS) and its modification by parenteral nutrition. To this end we assessed circulating levels of selected makers of intestinal permeability including zonulin, fatty acid binding protein 2 (FABP-2), citrulline and glucagon-like peptide 2 (GLP-2). We also measured lipopolysaccharide binding protein (LBP) as a marker of circulating levels of lipopolysaccharide acting through the CD14 molecule. Eleven SBS and 10 age- and BMI-matched control subjects were included into the study. The effect of parenteral nutrition was assessed after 14 days, 6 and 12 months from its initiation, respectively. At baseline, SBS patients had increased gut permeability as measured by zonulin (47.24+/-2.14 vs. 39.48+/-1.20 ng/ml, p=0.006) and LBP (30.32+/-13.25 vs. 9.77+/-0.71 microg/ml, p<0.001) compared to healthy controls. Furthermore, SBS subjects had reduced FABP-2, unchanged citrulline and increased sCD14 and GLP-2 relative to control group. Throughout the whole study period the administered parenteral nutrition had no significant effect on any of the studied parameters. Taken together, our data show that patients with short bowel syndrome have increased intestinal permeability that is not affected by parenteral nutrition.
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Affiliation(s)
- A Cinkajzlová
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
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Scharek-Tedin L, Zentek J. A porcine animal model to mimic the restart of enteral nutrition (refeeding-model). Arch Anim Nutr 2019; 73:52-66. [PMID: 31274344 DOI: 10.1080/1745039x.2018.1557919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
With the aim towards establishing an animal model of total parenteral nutrition (TPN), 12 piglets aged 9 weeks (mean body weight 21 kg) were surgically provided with central venous catheters. Six piglets were nourished parenterally with the objective to reach a 14-d period of TPN; the other six piglets served as control and were fed normally. Only one animal from each group could be monitored over the whole period. Nine piglets were euthanised on d 13 and one on d 12. No animal showed fever or signs of septicaemia during the study. The levels of Ca, Mg, Na and P in the blood were within the normal range as were those for blood glucose and plasma creatinine. Symptoms of the TPN included: transient diarrhoea, occasional appearance of faecal blood and occasional absence of defecation. A reduced small intestine length and altered mucosal morphology and function were observed. One animal showed bile stasis at the end of the study. All TPN animals showed a remarkably high level of blood urea early in the morning. The intestinal symptoms observed may resemble the human situation during TPN. However, due to the fast growth rate, pigs aged 9 weeks have higher nutrient requirements per kg body weight. Consequently, the osmolality of the nutrient solution was necessarily high. Whether the significantly higher blood urea observed in the TPN group reflected a catabolic metabolism during the starving period at night-time could not be conclusively shown. Alternatively, it could reflect a slower growth rate and a resulting quantitative excess of amino acids (AA), or could have been the consequence of a suboptimal AA composition. A permanent infusion would be favourable in order not to overcharge the capacity for glucose uptake and amino acid metabolism during the infusion.
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Affiliation(s)
- Lydia Scharek-Tedin
- a Institute of Immunology, Department of Veterinary Medicine, Freie Universität Berlin , Berlin , Germany
| | - Jürgen Zentek
- b Institute of Animal Nutrition, Department of Veterinary Medicine, Freie Universität Berlin , Berlin , Germany
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Patil KR, Mahajan UB, Unger BS, Goyal SN, Belemkar S, Surana SJ, Ojha S, Patil CR. Animal Models of Inflammation for Screening of Anti-inflammatory Drugs: Implications for the Discovery and Development of Phytopharmaceuticals. Int J Mol Sci 2019; 20:E4367. [PMID: 31491986 PMCID: PMC6770891 DOI: 10.3390/ijms20184367] [Citation(s) in RCA: 163] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/21/2022] Open
Abstract
Inflammation is one of the common events in the majority of acute as well as chronic debilitating diseases and represent a chief cause of morbidity in today's era of modern lifestyle. If unchecked, inflammation leads to development of rheumatoid arthritis, diabetes, cancer, Alzheimer's disease, and atherosclerosis along with pulmonary, autoimmune and cardiovascular diseases. Inflammation involves a complex network of many mediators, a variety of cells, and execution of multiple pathways. Current therapy for inflammatory diseases is limited to the steroidal and non-steroidal anti-inflammatory agents. The chronic use of these drugs is reported to cause severe adverse effects like gastrointestinal, cardiovascular, and renal abnormalities. There is a massive need to explore new anti-inflammatory agents with selective action and lesser toxicity. Plants and isolated phytoconstituents are promising and interesting sources of new anti-inflammatories. However, drug development from natural sources has been linked with hurdles like the complex nature of extracts, difficulties in isolation of pure phytoconstituents, and the yield of isolated compounds in minute quantities that is insufficient for subsequent lead development. Although various in-vivo and in-vitro models for anti-inflammatory drug development are available, judicious selection of appropriate animal models is a vital step in the early phase of drug development. Systematic evaluation of phytoconstituents can facilitate the identification and development of potential anti-inflammatory leads from natural sources. The present review describes various techniques of anti-inflammatory drug screening with its advantages and limitations, elaboration on biological targets of phytoconstituents in inflammation and biomarkers for the prediction of adverse effects of anti-inflammatory drugs. The systematic approach proposed through present article for anti-inflammatory drug screening can rationalize the identification of novel phytoconstituents at the initial stage of drug screening programs.
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Affiliation(s)
- Kalpesh R Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Dist- Dhule, Maharashtra, India.
| | - Umesh B Mahajan
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Dist- Dhule, Maharashtra, India
| | - Banappa S Unger
- Pharmacology & Toxicology Division, ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, Karnataka, India
| | - Sameer N Goyal
- SVKM's Institute of Pharmacy, Dhule 424001, Maharashtra, India
| | - Sateesh Belemkar
- School of Pharmacy and Technology Management, SVKM's NMIMS, MPTP, Shirpur 425405, Dist- Dhule, Maharashtra, India
| | - Sanjay J Surana
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Dist- Dhule, Maharashtra, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, PO Box 17666, United Arab Emirates.
| | - Chandragouda R Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Dist- Dhule, Maharashtra, India.
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Correlates of Gut Function in Children Hospitalized for Severe Acute Malnutrition, a Cross-sectional Study in Uganda. J Pediatr Gastroenterol Nutr 2019; 69:292-298. [PMID: 31169661 DOI: 10.1097/mpg.0000000000002381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVE Children with severe acute malnutrition (SAM) may have impaired intestinal function, which can result in malabsorption, diarrhoea, and poor growth. This study evaluated the gut function of children with SAM using fecal and blood biomarkers and assessed their correlates. METHODS A cross-sectional study, nested in a randomized trial (www.isrctn.com, ISRCTN 16454889), was conducted at Mulago hospital, Uganda among subgroups of 400 children with complicated SAM and 30 community controls. Gut function was evaluated by 5 biomarkers: plasma citrulline, fecal myeloperoxidase and fecal neopterin, bacterially derived 16S rRNA gene and internal transcribed Spacer region (ITS) specific for Candida spp. in blood. RESULTS Compared with controls, children with SAM had lower median plasma citrulline (5.14 vs 27.4 μmol/L, P < 0.001), higher median fecal myeloperoxidase (18083 vs 7482 ng/mL, P = 0.001), and fecal neopterin (541 vs 210 nmol/L, P < 0.001). A higher blood concentration of 16S rRNA gene copy numbers was observed among children with SAM (95 vs 28 copies/μl, P = 0.05), whereas there was no difference in the blood concentration of Candida-specific ITS fragment.Among those with SAM, plasma citrulline was lower in children with edema, diarrhoea, dermatosis, and plasma C-reactive protein (CRP) >10 mg/L. Fecal neopterin was positively correlated with symptoms of fever and cough whereas it was negatively correlated with mid-upper arm circumference (MUAC), weight-for-height z score (WHZ), edema, and dermatosis. CONCLUSIONS Children with complicated SAM seem to have impaired gut function characterized by reduced enterocyte mass, intestinal inflammation, and increased bacterial translocation.
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Costantini A, Takam Kamga P, Dumenil C, Chinet T, Emile JF, Giroux Leprieur E. Plasma Biomarkers and Immune Checkpoint Inhibitors in Non-Small Cell Lung Cancer: New Tools for Better Patient Selection? Cancers (Basel) 2019; 11:cancers11091269. [PMID: 31470546 PMCID: PMC6769436 DOI: 10.3390/cancers11091269] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 02/06/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) have transformed the treatment landscape for patients with non-small cell lung cancer (NSCLC). Although some patients can experience important response rates and improved survival, many others do not benefit from ICIs developing hyper-progressive disease or immune-related adverse events. This underlines the need to select biomarkers for ICIs use in order to better select patients. There is currently no universally validated robust biomarker for daily use of ICIs. Programmed death-ligand 1 (PD-L1) or tumor mutational burden (TMB) are sometimes used but still have several limitations. Plasma biomarkers are a promising approach in ICI treatment. This review will describe the development of novel plasma biomarkers such as soluble proteins, circulating tumor DNA (ctDNA), blood TMB, and blood microbiome in NSCLC patients treated with ICIs and their potential use in predicting response and toxicity.
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Affiliation(s)
- Adrien Costantini
- Department of Respiratory Diseases and Thoracic Oncology, APHP-Hôpital Ambroise Paré, 92100 Boulogne-Billancourt, France
- EA 4340 BECCOH, UVSQ, Université Paris Saclay, 92100 Boulogne-Billancourt, France
| | - Paul Takam Kamga
- EA 4340 BECCOH, UVSQ, Université Paris Saclay, 92100 Boulogne-Billancourt, France
| | - Coraline Dumenil
- Department of Respiratory Diseases and Thoracic Oncology, APHP-Hôpital Ambroise Paré, 92100 Boulogne-Billancourt, France
- EA 4340 BECCOH, UVSQ, Université Paris Saclay, 92100 Boulogne-Billancourt, France
| | - Thierry Chinet
- Department of Respiratory Diseases and Thoracic Oncology, APHP-Hôpital Ambroise Paré, 92100 Boulogne-Billancourt, France
- EA 4340 BECCOH, UVSQ, Université Paris Saclay, 92100 Boulogne-Billancourt, France
| | - Jean-François Emile
- EA 4340 BECCOH, UVSQ, Université Paris Saclay, 92100 Boulogne-Billancourt, France
- Department of Pathology, APHP-Hôpital Ambroise Pare, 92100 Boulogne-Billancourt, France
| | - Etienne Giroux Leprieur
- Department of Respiratory Diseases and Thoracic Oncology, APHP-Hôpital Ambroise Paré, 92100 Boulogne-Billancourt, France.
- EA 4340 BECCOH, UVSQ, Université Paris Saclay, 92100 Boulogne-Billancourt, France.
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Abstract
Gastrointestinal failure (GIF) is frequent in patients managed in the intensive care units and manifests as gut paralysis or ileus. GIF is often associated with sepsis or multiorgan failure. In critically ill patients, the precipitating causes of GIF include inflammation, sepsis, electrolyte abnormalities, and acidosis. It is possible that GIF is associated with an increase in bacterial translocation, especially in those with cirrhosis and portal hypertension, and this may play a significant pathogenic or prognostic role in acute-on-chronic liver failure (ACLF). The critical care literature suggests that GIF is associated with a higher mortality risk. In this review, we summarize the evidence for a potential association between GIF and ACLF and propose treatment options for the management of GIF. Moreover, we suggest GIF to be considered as another organ failure when the severity of ACLF is assessed.
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130
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Pevny S, Maasberg S, Rieger A, Karber M, Blüthner E, Knappe-Drzikova B, Thurmann D, Büttner J, Weylandt KH, Wiedenmann B, Müller VA, Bläker H, Pascher A, Pape UF. Experience with teduglutide treatment for short bowel syndrome in clinical practice. Clin Nutr 2019; 38:1745-1755. [DOI: 10.1016/j.clnu.2018.07.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 07/10/2018] [Accepted: 07/27/2018] [Indexed: 12/20/2022]
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Memet O, Zhang L, Shen J. Serological biomarkers for acute mesenteric ischemia. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:394. [PMID: 31555708 DOI: 10.21037/atm.2019.07.51] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Acute mesenteric ischemia (AMI) defines a complex of conditions characterized by an interruption of the splanchnic circulation, leading to insufficient oxygen delivery or utilization to fill the metabolic needs of the visceral organs. Early diagnosis and immediate therapy are the cornerstones of early ischemia to reach a successful outcome and are necessary to reduce the high mortality. Although there is still lack of specific biomarkers to assist the diagnosis of AMI in clinical practice, there are several biomarkers with high specificity, may become a potential tools in early diagnosis of AMI, including intestinal fatty acid binding protein (I-FABP), a-glutathione S-transferase (a-GST), D-dimer, L- and D-lactate, citrulline, ischemia modified albumin, procalcitonin (PCT). However, they use in clinical limited duo to the many studies about these makers finished with small patient populations, and heterogeneous among these populations. This review describes the etiology of AMI, the current most studied promising biomarkers, the current research situation and future of biomarker research.
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Affiliation(s)
- Obulkasim Memet
- Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai 201508, China
| | - Lin Zhang
- Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai 201508, China
| | - Jie Shen
- Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai 201508, China
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Kong C, Li SM, Yang H, Xiao WD, Cen YY, Wu Y, Li WM, Sun DL, Xu PY. Screening and combining serum biomarkers to improve their diagnostic performance in the detection of intestinal barrier dysfunction in patients after major abdominal surgery. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:388. [PMID: 31555702 DOI: 10.21037/atm.2019.07.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background The aim of this prospective study was to screen and combine effective biomarkers to improve their diagnostic performance in detecting intestinal barrier dysfunction in patients after major abdominal surgery. Methods Patients undergoing major abdominal surgery were enrolled after signing informed consent in this study. The serum concentrations of α-GST, DAO, D-lactate, citrulline and I-FABP were detected 24 hours before and after surgery. The diagnostic performance of five biomarkers on intestinal barrier dysfunction was assessed using logistic regression models and receiver operating characteristic (ROC) curve analyses. Results Thirty-nine patients with major abdominal surgery were enrolled in and successfully completed this study. ROC analysis revealed that the sensitivities of D-lactate, citrulline and I-FABP were very high (0.91, 0.91 and 1.00, respectively), but the specificities of these biomarkers were less than 0.70. The sensitivity of DAO was very low [0.25; 95% confidence interval (CI), 0.05-0.57], but its specificity was high (0.92; 95% CI, 0.75-0.99). The accuracies of D-lactate and I-FABP were very high, and the areas under the curves (AUCs) of the biomarkers were 0.84 (95% CI, 0.68-0.93) and 0.81 (95% CI, 0.65-0.92), respectively. Different combinations of five biomarkers were also analysed. The sensitivity, specificity and AUC values of the combination of I-FABP, citrulline and D-lactate were 1.00, 0.74 and 0.89, respectively. These results were similar to those derived from the combination of α-GST, DAO, D-lactate, citrulline and I-FABP (P=1.000). Conclusions The combination of serum D-lactic acid, citrulline and I-FABP greatly improved the diagnostic performance for identifying intestinal barrier dysfunction in patients after major abdominal surgery.
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Affiliation(s)
- Can Kong
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.,Research Center for Surgical Clinical Nutrition in Yun-Nan Province, Kunming 650101, China.,Professor Yang Hua Research Station in Yun-Nan Province, Kunming 650101, China
| | - Shu-Min Li
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.,Research Center for Surgical Clinical Nutrition in Yun-Nan Province, Kunming 650101, China.,Professor Yang Hua Research Station in Yun-Nan Province, Kunming 650101, China
| | - Hua Yang
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Wei-Dong Xiao
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Yun-Yun Cen
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.,Research Center for Surgical Clinical Nutrition in Yun-Nan Province, Kunming 650101, China.,Professor Yang Hua Research Station in Yun-Nan Province, Kunming 650101, China
| | - Yi Wu
- Experimental Center for Medical Science Research of Kunming Medical University, Kunming 650101, China
| | - Wei-Ming Li
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.,Research Center for Surgical Clinical Nutrition in Yun-Nan Province, Kunming 650101, China.,Professor Yang Hua Research Station in Yun-Nan Province, Kunming 650101, China
| | - Da-Li Sun
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.,Research Center for Surgical Clinical Nutrition in Yun-Nan Province, Kunming 650101, China.,Professor Yang Hua Research Station in Yun-Nan Province, Kunming 650101, China
| | - Peng-Yuan Xu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.,Research Center for Surgical Clinical Nutrition in Yun-Nan Province, Kunming 650101, China.,Professor Yang Hua Research Station in Yun-Nan Province, Kunming 650101, China
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Ouaknine Krief J, Helly de Tauriers P, Dumenil C, Neveux N, Dumoulin J, Giraud V, Labrune S, Tisserand J, Julie C, Emile JF, Chinet T, Giroux Leprieur E. Role of antibiotic use, plasma citrulline and blood microbiome in advanced non-small cell lung cancer patients treated with nivolumab. J Immunother Cancer 2019; 7:176. [PMID: 31292005 PMCID: PMC6621972 DOI: 10.1186/s40425-019-0658-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/27/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Recent data suggested a role of gut microbiota and antibiotic use on immune checkpoint inhibitors efficacy. We aimed to evaluate the impact of early use of antibiotic (EUA), blood microbiome and plasmatic citrulline (marker of the intestinal barrier) on nivolumab efficacy in non-small cell lung cancer (NSCLC). METHODS We included all consecutive patients with advanced NSCLC treated with nivolumab in our Department between 2014 and 2017. Blood microbiome was analyzed at month (M) M0 and M2. Citrulline rates were evaluated at M0, M2, M4 and M6. RESULTS Seventy-two patients were included (EUA in 42%). Overall survival (OS) was longer without EUA (median 13.4 months) than with EUA (5.1 months, p = 0.03). Thirty-five patients (49%) had plasma samples available. High citrulline rate (≥20 μM) at M0 was associated with tumor response (p = 0.084) and clinical benefit (nivolumab > 6 months) (p = 0.002). Median progression-free survival (PFS) was 7.9 months (high citrulline) vs 1.6 months (low citrulline) (p < 0.0001), and median OS were respectively non reached vs 2.2 months (p < 0.0001). Patients with EUA had lower median citrulline rates at M0: 21 μM (IQR 15.0-30.8) vs 32 μM (IQR 24.0-42.0) without EUA (p = 0.044). The presence of specific bacterial DNA in blood at M0 was associated with response and clinical benefit (Peptostreptococcae, Paludibaculum, Lewinella) or with tumor progression (Gemmatimonadaceae). Multivariate analyses on PFS and OS confirmed the prognostic role of citrulline and blood microbiome. CONCLUSIONS EUA is associated with shorter OS with nivolumab and lower citrulline rates. Plasma citrulline and blood microbiome appear to be promising predictive factors of nivolumab efficacy.
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Affiliation(s)
- Julia Ouaknine Krief
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Pierre Helly de Tauriers
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Coraline Dumenil
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
- EA 4340, UVSQ, Université Paris-Saclay, Boulogne-Billancourt, France
| | - Nathalie Neveux
- Department of Biochemistry, APHP – Hopital Cochin, Paris, France
| | - Jennifer Dumoulin
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Violaine Giraud
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Sylvie Labrune
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Julie Tisserand
- EA 4340, UVSQ, Université Paris-Saclay, Boulogne-Billancourt, France
| | - Catherine Julie
- EA 4340, UVSQ, Université Paris-Saclay, Boulogne-Billancourt, France
- Department of Pathology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Jean-François Emile
- EA 4340, UVSQ, Université Paris-Saclay, Boulogne-Billancourt, France
- Department of Pathology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
| | - Thierry Chinet
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
- EA 4340, UVSQ, Université Paris-Saclay, Boulogne-Billancourt, France
| | - Etienne Giroux Leprieur
- Department of Respiratory Diseases and Thoracic Oncology, APHP – Hopital Ambroise Pare, Boulogne-Billancourt, France
- EA 4340, UVSQ, Université Paris-Saclay, Boulogne-Billancourt, France
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Rodrigues D, Souza T, Jennen DG, Lemmens L, Kleinjans JC, de Kok TM. Drug-induced gene expression profile changes in relation to intestinal toxicity: State-of-the-art and new approaches. Cancer Treat Rev 2019; 77:57-66. [DOI: 10.1016/j.ctrv.2019.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 12/22/2022]
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135
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Seddik TB, Tian L, Nespor C, Kerner J, Maldonado Y, Gans H. Risk Factors of Ambulatory Central Line-Associated Bloodstream Infection in Pediatric Short Bowel Syndrome. JPEN J Parenter Enteral Nutr 2019; 44:500-506. [PMID: 31179578 DOI: 10.1002/jpen.1667] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 04/03/2019] [Accepted: 05/22/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND Children with short bowel syndrome (SBS) receiving home parenteral nutrition (HPN) are predisposed to ambulatory central line-associated bloodstream infection (A-CLABSI). Data describing risk factors of this infection in children are limited. METHODS Retrospective cohort, single-center, case-crossover study of children ≤18 years old with SBS receiving HPN from January 2012 to December 2016. Univariate and multivariate mixed effect Poisson regression identified the relative risk (RR) of A-CLABSI with proposed risk factors. RESULTS Thirty-five children were identified; median follow-up was 30 months. A-CLABSI rate was 4.2 per 1000 central line (CL) days. Univariate analysis identified younger age (RR: 0.92 per 12-month increase [95% confidence interval {CI}: 0.85-0.99; P = 0.036]), shorter small intestine length (RR: 0.96 per 10-cm increase [95% CI: 0.92-0.99; P = 0.008]), lower citrulline level (RR: 0.86 per 5-nmol/mL increase [95% CI: 0.75-0.99; P = 0.036]), and recent CL break (RR: 1.55 [95% CI: 1.06-2.28; P = 0.024]) as risk factors for A-CLABSI. Multivariate analysis showed increased A-CLABSI with clinical diagnosis of small intestine bacterial overgrowth (SIBO) (RR: 1.87 [95% CI: 1.1-3.17; P = 0.021]) and CL breaks (RR: 1.49 [95% CI: 1-2.22; P = 0.024]). CONCLUSIONS Factors influencing gut integrity increase A-CLABSI rate, supporting translocation as an important mechanism and target for prevention. Clinical diagnosis of SIBO increases A-CLABSI rate, but whether dysbiosis or diarrhea is responsible is an area for future research. CL maintenance is crucial, and prevention of breaks would likely decrease A-CLABSI rate.
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Affiliation(s)
- Talal B Seddik
- Pediatric Infectious Diseases, Stanford University, Stanford, California, USA
| | - Lu Tian
- Biomedical Data Science-Administration, Stanford University, Stanford, California, USA
| | - Colleen Nespor
- Pediatric Gastroenterology, Lucile Packard Children's Hospital, Palo Alto, California, USA
| | - John Kerner
- Pediatric Gastroenterology, Stanford University, Stanford, California, USA
| | - Yvonne Maldonado
- Pediatric Infectious Diseases, Stanford University, Stanford, California, USA
| | - Hayley Gans
- Pediatric Infectious Diseases, Stanford University, Stanford, California, USA
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136
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Plasma citrulline is not a biomarker for intestinal adaptation in short bowel syndrome, studied in piglets: a model for human neonates. Pediatr Surg Int 2019; 35:657-663. [PMID: 30937511 DOI: 10.1007/s00383-019-04475-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/23/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND There are no in vivo methods to measure adaptation in neonatal short bowel syndrome (SBS). We evaluated citrulline (Cit) levels in neonatal piglet surgical models of SBS. METHODS Piglets underwent 75% mid-intestinal resection with jejunoileal anastomosis (JI), 75% distal resection of ileum with jejunocolic anastomosis (JC) or sham surgery. Jugular and gastric catheters were inserted for parenteral and enteral nutrition. On D7, small intestine length and weight were measured, jejunum collected for histopathology and Cit level determined. RESULTS JI (n = 5) compared to JC (n = 5) had increased small intestinal length (JC - 17.5 cm; JI +22.0 cm; p = 0.02) and mass (JC 43.1 mg/cm/kg; JI 51.3 mg/cm/kg; p = 0.02), while Cit did not differ (JI 801.0 µM; JC 677.7 µM; p = 0.90). Including non-resected shams (n = 4), Cit correlated with length (R2 = 0.48; p = 0.006), but not for SBS alone (R2 = 0.11; p = 0.4), mass (R2 = 0.05; p = 0.5). A second experiment compared change in Cit levels from baseline to D7. Levels declined in sham (n = 8) and JC (n = 10) (sham - 110.1 µM; JC - 56.6 µM; p = 0.17), regardless of intestinal lengthening (sham 29.9 cm; JC - 10.4 cm; p = 0.002). CONCLUSION Citrulline levels predict large differences in intestinal length and 'identify' SBS. However, citrulline cannot discriminate between adaptation in JI and JC, nor predict intestinal lengthening.
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137
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Zhang H, Peng A, Yu Y, Guo S, Wang M, Coleman DN, Loor JJ, Wang H. N-Carbamylglutamate and l-Arginine Promote Intestinal Absorption of Amino Acids by Regulating the mTOR Signaling Pathway and Amino Acid and Peptide Transporters in Suckling Lambs with Intrauterine Growth Restriction. J Nutr 2019; 149:923-932. [PMID: 31149712 DOI: 10.1093/jn/nxz016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 01/15/2019] [Accepted: 01/22/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Previous studies have revealed that dietary N-carbamylglutamate (NCG) and l-arginine (Arg) improve intestinal integrity, oxidative state, and immune function in Hu suckling lambs with intrauterine growth restriction (IUGR). Whether these treatments alter intestinal nutrient absorption is unknown. OBJECTIVE The aim of this study was to determine the influence of dietary NCG and Arg treatment during the suckling period on intestinal amino acid (AA) absorption, alterations in the mechanistic target of rapamycin (mTOR) signaling pathway, and the abundance of AA and peptide transporters in IUGR lambs. METHODS On day 7 after birth, 48 newborn Hu lambs were selected from a cohort of 424 twin lambs. Normal-birth-weight and IUGR Hu lambs were allocated randomly (n = 12/group) to a control (4.09 ± 0.12 kg), IUGR (3.52 ± 0.09 kg), IUGR + 0.1% NCG (3.49 ± 0.11 kg), or IUGR + 1% Arg (3.53 ± 0.10 kg). RESULTS At day 28, compared with the IUGR group, the IUGR groups receiving NCG and Arg had 7.4% and 7.2% greater (P < 0.05) body weight, respectively. Compared with the IUGR group, the serum concentration of insulin was greater (P < 0.05) and the cortisol was lower (P < 0.05) in the IUGR groups receiving NCG and Arg. Compared with the IUGR group, the IUGR groups receiving NCG and Arg had 13.2%-62.6% greater (P < 0.05) serum concentrations of arginine, cysteine, isoleucine, and proline. Dietary NCG or Arg to IUGR lambs resulted in greater protein abundance (P < 0.05) of peptide transporter 1 (41.9% or 38.2%) in the ileum compared with the unsupplemented IUGR lambs, respectively. Furthermore, dietary NCG or Arg treatment normalized the IUGR-induced variation (P < 0.05) in the ileal ratio of phosphorylated mTOR to total mTOR protein. CONCLUSION Both NCG and Arg can help mitigate the negative effect of IUGR on nutrient absorption in neonatal lambs.
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Affiliation(s)
- Hao Zhang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Along Peng
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Yin Yu
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Shuang Guo
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Mengzhi Wang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Danielle N Coleman
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, USA
| | - Juan J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, USA
| | - Hongrong Wang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
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138
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Piton G, Le Gouge A, Brulé N, Cypriani B, Lacherade JC, Nseir S, Mira JP, Mercier E, Sirodot M, Rigaud JP, Malaquin S, Soum E, Djibre M, Gaudry S, Thévenin D, Reignier J. Impact of the route of nutrition on gut mucosa in ventilated adults with shock: an ancillary of the NUTRIREA-2 trial. Intensive Care Med 2019; 45:948-956. [PMID: 31143999 DOI: 10.1007/s00134-019-05649-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 05/15/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE The effects of the route of nutrition on the gut mucosa of patients with shock are unclear. Plasma citrulline concentration is a marker of enterocyte mass, and plasma intestinal fatty acid binding protein (I-FABP) concentration is a marker of enterocyte damage. We aimed to study the effect of the route of nutrition on plasma citrulline concentration measured at day 3 of nutrition. MATERIALS AND METHODS Ancillary study of the NUTRIREA-2 trial. Ventilated adults with shock were randomly assigned to receive enteral or parenteral nutrition. Enterocyte biomarkers were measured at baseline, day 3, and day 8 of nutrition. RESULT A total of 165 patients from 13 French ICUs were included in the study: 85 patients in the enteral group and 80 patients in the parenteral group. At baseline, plasma citrulline was low without difference between groups (12.2 µmol L-1 vs 13.3 µmol L-1). At day 3, plasma citrulline concentration was higher in the enteral group than in the parenteral group (18.7 µmol L-1 vs 15.3 µmol L-1, p = 0.01). Plasma I-FABP concentration was increased at baseline, without difference between groups (245 pg mL-1 vs 244 pg mL-1). Plasma I-FABP concentration was higher in the enteral group than in the parenteral group at day 3 and day 8 (158 pg mL-1 vs 50 pg mL-1, p = 0.005 and 225 pg mL-1 vs 50 pg mL-1, p = 0.03). CONCLUSION Plasma citrulline concentration was higher after 3 days of enteral nutrition than after 3 days of parenteral nutrition. This result raises the question of the possibility that enteral nutrition is associated with a more rapid restoration of enterocyte mass than parenteral nutrition.
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Affiliation(s)
- Gaël Piton
- Medical Intensive Care Unit, CHRU Besançon, Besançon, France. .,EA3920, Université de Franche Comté, Besançon, France. .,Service de Réanimation Médicale, CHRU de Besançon, Boulevard Fleming, 25030, Besançon, France.
| | - Amélie Le Gouge
- Inserm CIC 1415, Tours, France.,Université de Tours, Tours, France.,CHU Tours, Tours, France
| | - Noelle Brulé
- Médecine Intensive Réanimation, CHU de Nantes, Nantes, France
| | - Benoit Cypriani
- Biochemistry Unit, Besançon University Hospital, Besançon, France
| | - Jean-Claude Lacherade
- Médecine Intensive Réanimation, Centre Hospitalier Départemental de la Vendée, La Roche sur Yon, France
| | - Saad Nseir
- Medical Intensive Care Unit, CHU Lille, Lille, France.,Medicine School, Université Lille, Lille, France
| | - Jean-Paul Mira
- Medical Intensive Care Unit, Cochin University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Emmanuelle Mercier
- Médecine Intensive Réanimation, Hôpital Bretonneau, CHU Tours, Tours, France
| | - Michel Sirodot
- Medical-Surgical Intensive Care Unit, Centre Hospitalier Annecy-Genevois, Metz-Tessy, Pringy, France
| | | | | | - Edouard Soum
- Medical Intensive Care Unit, Hôpital Gabriel Montpied, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Michel Djibre
- Medical-Surgical Intensive Care Unit, Tenon University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Stéphane Gaudry
- Medical-Surgical Intensive Care Unit, Hôpital Louis Mourier, Assistance Publique-Hôpitaux de Paris (AP-HP), Colombes, France.,Université Paris Diderot, ECEVE, UMR 1123, Sorbonne Paris Cité, Paris, France
| | - Didier Thévenin
- Medical-Surgical Intensive Care Unit, Centre Hospitalier Docteur Schaffner, Lens, France
| | - Jean Reignier
- Médecine Intensive Réanimation, CHU de Nantes, Nantes, France.,Université de Nantes, Nantes, France
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Vsiansky V, Svobodova M, Gumulec J, Cernei N, Sterbova D, Zitka O, Kostrica R, Smilek P, Plzak J, Betka J, Kalfert D, Masarik M, Raudenska M. Prognostic Significance of Serum Free Amino Acids in Head and Neck Cancers. Cells 2019; 8:cells8050428. [PMID: 31075822 PMCID: PMC6562773 DOI: 10.3390/cells8050428] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/26/2019] [Accepted: 05/07/2019] [Indexed: 12/12/2022] Open
Abstract
Despite distinctive advances in the field of head and neck squamous cell cancer (HNSCC) biomarker discovery, the spectrum of clinically useful prognostic serum biomarkers is limited. As metabolic activities in highly proliferative transformed cells are fundamentally different from those in non-transformed cells, specific shifts in concentration of different metabolites may serve as diagnostic or prognostic markers. Blood amino acids have been identified as promising biomarkers in different cancers before, but little is known about this field in HNSCC. Blood amino acid profiles of 140 HNSCC patients were examined using high-performance liquid chromatography. Cox proportional hazards regression model was used to assess the prognostic value of amino acid concentrations in serum. Colony forming assay was used to identify the effect of amino acids that were significant in Cox proportional hazards regression models on colony forming ability of FaDu and Detroit 562 cell lines. In the multivariable Cox regression model for overall survival (OS), palliative treatment was associated with an unfavourable prognosis while high serum levels of methionine have had a positive prognostic impact. In the relapse-free survival (RFS) multivariable model, methionine was similarly identified as a positive prognostic factor, along with tumor localization in the oropharynx. Oral cavity localization and primary radio(chemo)therapy treatment strategy have been linked to poorer RFS. 1mM serine was shown to support the forming of colonies in both tested HNSCC cell lines. Effect of methionine was exactly the opposite.
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Affiliation(s)
- Vit Vsiansky
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
| | - Marketa Svobodova
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
- Department of Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
| | - Jaromir Gumulec
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
- Department of Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
- Department of Chemistry and Biochemistry, Mendel University, Zemedelska 1, 613 00 Brno, Czech Republic.
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University, Zemedelska 1, 613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, CZ-612 00 Brno, Czech Republic.
| | - Dagmar Sterbova
- Department of Chemistry and Biochemistry, Mendel University, Zemedelska 1, 613 00 Brno, Czech Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University, Zemedelska 1, 613 00 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, CZ-612 00 Brno, Czech Republic.
| | - Rom Kostrica
- Department of Otorhinolaryngology and Head and Neck Surgery, St. Anne's Faculty Hospital, Pekarska 53, CZ-656 91 Brno, Czech Republic.
| | - Pavel Smilek
- Department of Otorhinolaryngology and Head and Neck Surgery, St. Anne's Faculty Hospital, Pekarska 53, CZ-656 91 Brno, Czech Republic.
| | - Jan Plzak
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Motol, First Faculty of Medicine, Charles University, V Uvalu 84, Prague 5, 150 06, Czech Republic.
| | - Jan Betka
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Motol, First Faculty of Medicine, Charles University, V Uvalu 84, Prague 5, 150 06, Czech Republic.
| | - David Kalfert
- Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Motol, First Faculty of Medicine, Charles University, V Uvalu 84, Prague 5, 150 06, Czech Republic.
| | - Michal Masarik
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
- Department of Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50, Vestec, Czech Republic.
| | - Martina Raudenska
- Department of Physiology, Faculty of Medicine, Masaryk University/Kamenice 5, CZ-625 00 Brno, Czech Republic.
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140
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Baxter MFA, Latorre JD, Dridi S, Merino-Guzman R, Hernandez-Velasco X, Hargis BM, Tellez-Isaias G. Identification of Serum Biomarkers for Intestinal Integrity in a Broiler Chicken Malabsorption Model. Front Vet Sci 2019; 6:144. [PMID: 31143767 PMCID: PMC6520665 DOI: 10.3389/fvets.2019.00144] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/25/2019] [Indexed: 12/19/2022] Open
Abstract
Intestinal health is essential for feed efficiency and growth in animal agriculture and is dependent on barrier function, inflammation and dysbiosis. Our laboratory has published a nutritional model to induce gut inflammation using rye as a source of energy in poultry. More recently, we have used this model as an assessment of a nutritional rehabilitation model for better understanding of childhood undernutrition. The objective of this brief research report was to use a well-establish malabsorption model in broiler chickens using corn and rye as an energy source to identify several intestinal health biomarkers in the serum. To screen for inflammatory biomarkers, seven commercially available tests were used including Griess, superoxide dismutase, thiobarbituric acid reactive substances, Total antioxidant capacity, extracellular-signal-regulated kinase, Citrulline, and Interferon-ɤ; total IgA from cloacal swab was also measured. In the present study, chickens fed rye had a significant (P < 0.05) reduction in body weight and body weight gain at 10 day when compared with chickens that received the corn diet. In the second phase of the experiment, chickens that remain with the corn diet had significant differences in body weight and body weight gain. No significant differences were observed for any of the four antioxidant biomarkers evaluated in the sera (P > 0.05). However, significant differences were observed in serum citrulline and IFN-ɤ, as well as in cloacal IgA, in broiler chickens fed with rye, suggesting their potential use as biomarkers to study intestinal inflammation.
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Affiliation(s)
- Mikayla F A Baxter
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Juan D Latorre
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Sami Dridi
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Ruben Merino-Guzman
- Departamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Xochitl Hernandez-Velasco
- Departamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Billy M Hargis
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
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141
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Park CJ, Shaughnessy MP, Armenia SJ, Cowles RA. Serum Citrulline Levels Exhibit Circadian Variation and Fluctuations in Relation to Food Intake in Mice. Gastroenterology Res 2019; 12:88-92. [PMID: 31019618 PMCID: PMC6469904 DOI: 10.14740/gr1146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 02/15/2019] [Indexed: 12/23/2022] Open
Abstract
Background Plasma citrulline is a nonessential amino acid synthesized almost exclusively by enterocytes of the small intestine. Correlation between post-operative plasma citrulline levels and remnant small bowel mass and function has led to its use as a simple biomarker of functional intestinal mass in adults and children, with a proposed prognostic value for achieving enteral autonomy in the setting of intestinal failure. While it is standard to measure fasting levels in humans, the optimal timing of blood draws in relation to food intake and time of day has not been standardized and is poorly studied in animal models. We hypothesize that serum citrulline levels vary both throughout the day and with relation to food intake in mice. Methods Serum citrulline levels were measured from 12 C57BL/6 mice (6 - 9 weeks old) in the mornings and evenings, either after ad libitum food intake or after 8 - 12 h of access to water only. Blood draws for each experimental set-up were performed 1 week apart according to our Institutional Animal Care and Use Committee (IACUC) guidelines for acceptable blood collection volumes for survival procedures. At the end of the experiment, mice were euthanized and small intestine was harvested for morphometric measurements. Group means were compared using Student’s t-test with significance assumed for P < 0.05. Results After withholding chow for 8 - 12 h, serum citrulline levels were significantly greater in the morning compared to levels drawn in the evening. When mice were allowed ad libitum chow, there was no significant difference in serum citrulline levels drawn in the morning compared to the evening. There was no difference detected in villus height across the different experimental conditions. Conclusions Serum citrulline levels exhibit circadian variation and fluctuations in relation to food intake in mice, without apparent concurrent changes in enterocyte mass. There was no diurnal variation of serum citrulline levels in fed mice whereas fasted mice had significantly higher levels of serum citrulline in the morning compared to the evening. These findings underscore the paramount importance of consistent sample collection strategies in the setting of translational research.
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Affiliation(s)
- Christine J Park
- Department of Surgery, Section of Pediatric Surgery, Yale School of Medicine, 333 Cedar Street, FMB 131, New Haven, CT 06510, USA
| | - Matthew P Shaughnessy
- Department of Surgery, Section of Pediatric Surgery, Yale School of Medicine, 333 Cedar Street, FMB 131, New Haven, CT 06510, USA
| | - Sarah J Armenia
- Department of Surgery, Section of Pediatric Surgery, Yale School of Medicine, 333 Cedar Street, FMB 131, New Haven, CT 06510, USA
| | - Robert A Cowles
- Department of Surgery, Section of Pediatric Surgery, Yale School of Medicine, 333 Cedar Street, FMB 131, New Haven, CT 06510, USA
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142
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Celi P, Verlhac V, Pérez Calvo E, Schmeisser J, Kluenter AM. Biomarkers of gastrointestinal functionality in animal nutrition and health. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2018.07.012] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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143
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Whiley L, Nye LC, Grant I, Andreas N, Chappell KE, Sarafian MH, Misra R, Plumb RS, Lewis MR, Nicholson JK, Holmes E, Swann JR, Wilson ID. Ultrahigh-Performance Liquid Chromatography Tandem Mass Spectrometry with Electrospray Ionization Quantification of Tryptophan Metabolites and Markers of Gut Health in Serum and Plasma-Application to Clinical and Epidemiology Cohorts. Anal Chem 2019; 91:5207-5216. [PMID: 30848589 PMCID: PMC6503468 DOI: 10.1021/acs.analchem.8b05884] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
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A targeted
ultrahigh-performance liquid chromatography tandem mass
spectrometry with electrospray ionization (UHPLC-ESI-MS/MS) method
has been developed for the quantification of tryptophan and its downstream
metabolites from the kynurenine and serotonin pathways. The assay
coverage also includes markers of gut health and inflammation, including
citrulline and neopterin. The method was designed in 96-well plate
format for application in multiday, multiplate clinical and epidemiology
population studies. A chromatographic cycle time of 7 min enables
the analysis of two 96-well plates in 24 h. To protect chromatographic
column lifespan, samples underwent a two-step extraction, using solvent
protein precipitation followed by delipidation via solid-phase extraction
(SPE). Analytical validation reported accuracy of each analyte <20%
for the lowest limit of quantification and <15% for all other quality
control (QC) levels. The analytical precision for each analyte was
2.1–12.9%. To test the applicability of the method to multiplate
and multiday preparations, a serum pool underwent periodic repeat
analysis during a run consisting of 18 plates. The % CV (coefficient
of variation) values obtained for each analyte were <15%. Additional
biological testing applied the assay to samples collected from healthy
control participants and two groups diagnosed with inflammatory bowel
disease (IBD) (one group treated with the anti-inflammatory 5-aminosalicylic
acid (5-ASA) and one group untreated), with results showing significant
differences in the concentrations of picolinic acid, kynurenine, and
xanthurenic acid. The short analysis time and 96-well plate format
of the assay makes it suitable for high-throughput targeted UHPLC-ESI-MS/MS
metabolomic analysis in large-scale clinical and epidemiological population
studies.
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Affiliation(s)
- Luke Whiley
- UK Dementia Research Institute, Burlington Danes Building , Imperial College London , Hammersmith Hospital, London W12 0NN , United Kingdom.,MRC-NIHR National Phenome Centre, IRDB Building , Imperial College London , Hammersmith Hospital, London W12 0NN , United Kingdom
| | - Leanne C Nye
- Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom
| | - Isobelle Grant
- Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom.,Waters Corporation , Milford , Massachusetts 01757 , United States
| | - Nick Andreas
- Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom
| | - Katie E Chappell
- MRC-NIHR National Phenome Centre, IRDB Building , Imperial College London , Hammersmith Hospital, London W12 0NN , United Kingdom
| | - Magali H Sarafian
- Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom
| | - Ravi Misra
- St. Marks Hospital and Academic Institute , Watford Road , Middlesex, London HA1 3UJ , United Kingdom
| | - Robert S Plumb
- Waters Corporation , Milford , Massachusetts 01757 , United States
| | - Matthew R Lewis
- MRC-NIHR National Phenome Centre, IRDB Building , Imperial College London , Hammersmith Hospital, London W12 0NN , United Kingdom
| | - Jeremy K Nicholson
- Australian National Phenome Centre , Murdoch University , Harry Perkins Building , Perth , Western Australia 6150 , Australia
| | - Elaine Holmes
- UK Dementia Research Institute, Burlington Danes Building , Imperial College London , Hammersmith Hospital, London W12 0NN , United Kingdom.,MRC-NIHR National Phenome Centre, IRDB Building , Imperial College London , Hammersmith Hospital, London W12 0NN , United Kingdom.,Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom.,Australian National Phenome Centre , Murdoch University , Harry Perkins Building , Perth , Western Australia 6150 , Australia
| | - Jonathan R Swann
- Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom
| | - Ian D Wilson
- Division of Integrative Systems and Digestive Medicine, Department of Surgery and Cancer , Imperial College London , Sir Alexander Fleming Building, South Kensington Campus , London SW7 2AZ , United Kingdom
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Kinetic and Cross-Sectional Studies on the Genesis of Hypoargininemia in Severe Pediatric Plasmodium falciparum Malaria. Infect Immun 2019; 87:IAI.00655-18. [PMID: 30718287 DOI: 10.1128/iai.00655-18] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 01/05/2019] [Indexed: 12/12/2022] Open
Abstract
The low bioavailability of nitric oxide (NO) and its precursor, arginine, contributes to the microvascular pathophysiology of severe falciparum malaria. To better characterize the mechanisms underlying hypoargininemia in severe malaria, we measured the plasma concentrations of amino acids involved in de novo arginine synthesis in children with uncomplicated falciparum malaria (UM; n = 61), children with cerebral falciparum malaria (CM; n = 45), and healthy children (HC; n = 109). We also administered primed infusions of l-arginine uniformly labeled with 13C6 and 15N4 to 8 children with severe falciparum malaria (SM; age range, 4 to 9 years) and 7 healthy children (HC; age range, 4 to 8 years) to measure the metabolic flux of arginine, hypothesizing that arginine flux is increased in SM. Using two different tandem mass spectrometric methods, we measured the isotopic enrichment of arginine in plasma obtained at 0, 60, 90, 120, 150, and 180 min during the infusion. The plasma concentrations of glutamine, glutamate, proline, ornithine, citrulline, and arginine were significantly lower in UM and CM than in HC (P ≤ 0.04 for all pairwise comparisons). Of these, glutamine concentrations were the most markedly decreased: median, 457 μM (interquartile range [IQR], 400 to 508 μM) in HC, 300 μM (IQR, 256 to 365 μM) in UM, and 257 μM (IQR, 195 to 320 μM) in CM. Arginine flux during steady state was not significantly different in SM than in HC by the respective mass spectrometric methods: 93.2 μmol/h/kg of body weight (IQR, 84.4 to 129.3 μmol/h/kg) versus 88.0 μmol/h/kg (IQR, 73.0 to 102.2 μmol/h/kg) (P = 0.247) by the two mass spectrometric methods in SM and 93.7 μmol/h/kg (IQR, 79.1 to 117.8 μmol/h/kg) versus 81.0 μmol/h/kg (IQR, 75.9 to 88.6 μmol/h/kg) (P = 0.165) by the two mass spectrometric methods in HC. A limited supply of amino acid precursors for arginine synthesis likely contributes to the hypoargininemia and NO insufficiency in falciparum malaria in children.
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145
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Nier A, Brandt A, Rajcic D, Bruns T, Bergheim I. Short-Term Isocaloric Intake of a Fructose- but not Glucose-Rich Diet Affects Bacterial Endotoxin Concentrations and Markers of Metabolic Health in Normal Weight Healthy Subjects. Mol Nutr Food Res 2019; 63:e1800868. [PMID: 30570214 PMCID: PMC6590154 DOI: 10.1002/mnfr.201800868] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/06/2018] [Indexed: 12/18/2022]
Abstract
SCOPE Dietary pattern and impairments of intestinal barrier function are discussed to be critical in the development of metabolic impairments. Here, it is determined if an isocaloric exchange of complex carbohydrates with monosaccharides affects markers of intestinal permeability and metabolic health in healthy subjects. METHODS AND RESULTS After a dietary standardization for 4 days, all 12 subjects aged 21-33 years receive an isocaloric fructose- and glucose-enriched diet for 3 days separated by a wash-out phase. Anthropometry, blood pressure, markers of intestinal permeability and metabolic as well as inflammatory parameters are determined in blood samples or isolated peripheral blood mononuclear cells collected at baseline, after standardizations and the monosaccharide interventions, respectively. While anthropometric and inflammatory parameters are not changed, the intake of an isocaloric fructose- but not glucose-enriched diet is associated with a significant increase of bacterial endotoxin plasma levels and alanine aminotransferase activity in serum, while total plasma nitrate/nitrite concentrations are significantly decreased. In peripheral blood mononuclear cells, Toll like receptors 4, 2, and MYD88 mRNA expressions are significantly induced after the fructose-rich but not the glucose-rich diet. CONCLUSION In metabolically healthy subjects, even a short-term intake of a fructose-rich diet can elevate bacterial endotoxin levels and change markers of liver health and vascular endothelial function.
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Affiliation(s)
- Anika Nier
- Department of Nutritional SciencesMolecular Nutritional ScienceUniversity of Vienna1090ViennaAustria
- SD Model Systems of Molecular NutritionInstitute of NutritionFriedrich–Schiller University Jena07743JenaGermany
| | - Annette Brandt
- Department of Nutritional SciencesMolecular Nutritional ScienceUniversity of Vienna1090ViennaAustria
- SD Model Systems of Molecular NutritionInstitute of NutritionFriedrich–Schiller University Jena07743JenaGermany
| | - Dragana Rajcic
- Department of Nutritional SciencesMolecular Nutritional ScienceUniversity of Vienna1090ViennaAustria
| | - Tony Bruns
- Department of Internal Medicine IVUniversity Hospital Jena07743JenaGermany
| | - Ina Bergheim
- Department of Nutritional SciencesMolecular Nutritional ScienceUniversity of Vienna1090ViennaAustria
- SD Model Systems of Molecular NutritionInstitute of NutritionFriedrich–Schiller University Jena07743JenaGermany
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MacVittie TJ, Farese AM, Parker GA, Jackson W, Booth C, Tudor GL, Hankey KG, Potten CS. The Gastrointestinal Subsyndrome of the Acute Radiation Syndrome in Rhesus Macaques: A Systematic Review of the Lethal Dose-response Relationship With and Without Medical Management. HEALTH PHYSICS 2019; 116:305-338. [PMID: 30624353 PMCID: PMC9446380 DOI: 10.1097/hp.0000000000000903] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Well-characterized animal models that mimic the human response to potentially lethal doses of radiation are required to assess the efficacy of medical countermeasures under the criteria of the US Food and Drug Administration's Animal Rule. Development of a model for the gastrointestinal acute radiation syndrome requires knowledge of the radiation dose-response relationship and time course of mortality and morbidity across the acute and prolonged gastrointestinal radiation syndrome. The nonhuman primate, rhesus macaque, is a relevant animal model that has been used to determine the efficacy of medical countermeasures to mitigate major signs of morbidity and mortality relative to the hematopoietic acute radiation syndrome, gastrointestinal acute radiation syndrome, and lung injury. It can be used to assess the natural history of gastrointestinal damage, concurrent multiple organ injury, and aspects of the mechanism of action for acute radiation exposure and treatment. A systematic review of relevant studies that determined the dose-response relationship for the gastrointestinal acute and prolonged radiation syndrome in the rhesus macaque relative to radiation dose, quality, dose rate, exposure uniformity, and use of medical management has never been performed.
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Affiliation(s)
| | - Ann M. Farese
- University of Maryland School of Medicine, Baltimore, MD
| | | | | | | | | | - Kim G. Hankey
- University of Maryland School of Medicine, Baltimore, MD
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147
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Gultekin M, Voyvoda H, Ural K, Erdogan H, Balikci C, Gultekin G. Plasma citrulline, arginine, nitric oxide, and blood ammonia levels in neonatal calves with acute diarrhea. J Vet Intern Med 2019; 33:987-998. [PMID: 30788867 PMCID: PMC6430905 DOI: 10.1111/jvim.15459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 02/06/2019] [Indexed: 01/22/2023] Open
Abstract
Background Plasma citrulline (CIT) concentration is considered to be a reliable marker of functional enterocyte mass, primarily in humans. However, information about CIT levels along with related metabolites, arginine (ARG), nitric oxide (NO), and ammonia in neonatal calves are lacking. Objectives To compare plasma CIT, ARG, NO, and whole blood ammonia concentrations in neonatal calves with acute diarrhea with those in healthy calves and to assess their possible relationships with diarrhea‐related criteria. Animals Seventy neonatal calves (60 with acute diarrhea and 10 healthy). Methods Observational case‐control study. Diarrheic calves were classified into subgroups on the basis of etiology, severity of diarrhea, degree of dehydration, and systemic inflammatory response syndrome (SIRS) status. Plasma CIT and ARG concentrations were measured by liquid chromatography/tandem mass spectrometry. Results Plasma CIT (median [range]: 67.5 [61.9‐75.4] vs 30.1 [15.0‐56.1] μmol/L) and ARG (170.7 [148.5‐219.5] vs 106.1 [54.4‐190.7] μmol/L) were lower and plasma NO (4.42 [3.29‐5.58] vs 6.78 [5.29‐8.92] μM) and blood ammonia concentrations (28.7 [26.1‐36.9] vs 59.8 [34.6‐99.5] μmol/L) were higher in the neonatal calves with diarrhea (P < .001). Plasma CIT (β = −0.29, P = .02), ARG (β = −0.33, P = .01), NO (β = 0.55, P < .001), and blood ammonia (β = 0.63, P <.001) were affected by SIRS status. Except for ammonia (0.52), the effects sizes for severity of diarrhea and degree of dehydration were small (ηp2 ≤ 0.45) for CIT, ARG, and NO. Conclusions and Clinical Importance The changes in these variables might have diagnostic, prognostic, and therapeutic value in diarrheic neonatal calves.
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Affiliation(s)
- Mehmet Gultekin
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydin, Turkey
| | - Huseyin Voyvoda
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydin, Turkey
| | - Kerem Ural
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydin, Turkey
| | - Hasan Erdogan
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydin, Turkey
| | - Canberk Balikci
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydin, Turkey
| | - Gamze Gultekin
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Adnan Menderes, Aydin, Turkey
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149
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Lee YC, Su YT, Liu TY, Tsai CM, Chang CH, Yu HR. L-Arginine and L-Citrulline Supplementation Have Different Programming Effect on Regulatory T-Cells Function of Infantile Rats. Front Immunol 2018; 9:2911. [PMID: 30619275 PMCID: PMC6295647 DOI: 10.3389/fimmu.2018.02911] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/27/2018] [Indexed: 01/11/2023] Open
Abstract
Arginine is a semiessential amino acid in healthy adult human, but is essential for preterm, newborn or critically ill patients. Arginine can be supplied from our diet or de novo synthesis from citrulline. In conditions of sepsis or endotoxemia, arginine may be deficient and be accompanied with altered immune response. L-arginine supplementation can ameliorate dysregulated immune condition and improve prognosis. Many studies had tried L-arginine or L-citrulline supplementation to examine the effect on immune response in the adult population. Few had studied on the young children. In this study, we determined the effect of L-arginine and L-citrulline supplementation on the immune response of infantile rats. Male infantile rats received normal saline, L-arginine (200 mg/kg/day) or L-citrulline (200 mg/kg/day) intraperitoneally over postnatal day 8 to day 14. The infantile rats were then sacrificed. The blood was analyzed while the spleen was indicated for immune analysis after stimulation with concanavalin A (Con A) or lipopolysaccharide (LPS). We found L-arginine supplementation enhanced Th1 immune response by increasing IFN-γ production. Both the L-arginine and L-citrulline therapy can modulate regulatory T-cell (Treg) immune effects by increasing the IL-10 level. Only the L-citrulline group showed a TGF-β1 increase. Both L-arginine and L-citrulline therapy were also noted to decrease SMAD7 expression and enhance SIRT-1 abundance. However, FOXP3 expression was only modulated by L-citrulline treatment. We then concluded that L-arginine and L-citrulline supplementation can modulate the regulatory T-cells function differently for infantile rats.
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Affiliation(s)
- Yi-Chen Lee
- Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, and Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yu-Tsun Su
- Department of Pediatrics, E-Da Hospital/I-Shou University, Kaohsiung, Taiwan
| | - Ta-Yu Liu
- Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, and Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chih-Min Tsai
- Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, and Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chih-Hao Chang
- Department of Respiratory Therapy, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung, Taiwan
| | - Hong-Ren Yu
- Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, and Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
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150
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Blauwet CA, Brook EM, Tenforde AS, Broad E, Hu CH, Abdu-Glass E, Matzkin EG. Low Energy Availability, Menstrual Dysfunction, and Low Bone Mineral Density in Individuals with a Disability: Implications for the Para Athlete Population. Sports Med 2018; 47:1697-1708. [PMID: 28213754 DOI: 10.1007/s40279-017-0696-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Low energy availability, functional hypothalamic amenorrhea, and low bone mineral density are three interrelated conditions described in athletic women. Although described as the female athlete triad (Triad), males experience similar health concerns. The literature suggests that individuals with a disability may experience altered physiology related to these three conditions when compared with the able-bodied population. The goal of this review is to describe the unique implications of low energy availability, low bone mineral density, and, in females, menstrual dysfunction in individuals with a disability and their potential impact on the para athlete population. A literature review was performed linking search terms related to the three conditions with six disability categories that are most represented in para sport. Few articles were found that directly pertained to athletes, therefore, the review additionally characterizes literature found in a non-athlete population. Review of the available literature in athletes suggests that both male and female athletes with spinal cord injury demonstrate risk factors for low energy availability. Bone mineral density may also show improvements for wheelchair athletes or athletes with hemiplegic cerebral palsy when compared with a disabled non-athlete population. However, the prevalence of the three conditions and implications on the health of para athletes is largely unknown and represents a key gap in the sports medicine literature. As participation in para sport continues to increase, further research is needed to understand the impact of these three interrelated health concerns for athletes with a disability, accompanied by educational initiatives targeting athletes, coaches, and health professionals.
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Affiliation(s)
- Cheri A Blauwet
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Brigham and Women's Hospital, Harvard Medical School, 300 1st Avenue, Charlestown, Boston, MA, 02129, USA. .,International Paralympic Committee (IPC) Medical Committee, Bonn, Germany.
| | - Emily M Brook
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Adam S Tenforde
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Brigham and Women's Hospital, Harvard Medical School, 300 1st Avenue, Charlestown, Boston, MA, 02129, USA
| | | | - Caroline H Hu
- University of Minnesota Medical School, Minneapolis, MN, USA
| | | | - Elizabeth G Matzkin
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA, USA.,Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
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