1
|
Zhang RD, Jiang SQ, Yan FJ, Ruan L, Zhang CT, Quan XQ. The association of prealbumin, transferrin, and albumin with immunosenescence among elderly males. Aging Male 2024; 27:2310308. [PMID: 38317318 DOI: 10.1080/13685538.2024.2310308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 01/20/2024] [Indexed: 02/07/2024] Open
Abstract
OBJECTIVE As people get older, the innate and acquired immunity of the elderly are affected, resulting in immunosenescence. Prealbumin (PAB), transferrin (TRF), and albumin (ALB) are commonly used markers to monitor protein energy malnutrition (PEM). However, their relationship with the immune system has not been fully explored. METHODS In our study, a total of 93 subjects (≥65 years) were recruited from Tongji Hospital between January 2015 and February 2017. According to the serum levels of these proteins (PAB, TRF, and ALB), we divided the patients into the high serum protein group and the low serum protein group. Then, we compared the percent expression of lymphocyte subsets between two groups. RESULTS All the low serum protein groups (PAB, TRF, and ALB) had significant decreases in the percentage of CD4+ cells, CD3+CD28+ cells, CD4+CD28+ cells and significant increases in the percentage of CD8+ cells, CD8+CD28- cells. PAB, TRF, and ALB levels revealed positive correlations with CD4/CD8 ratio, proportions of CD4+ cells, CD3+CD28+ cells, CD4+CD28+ cells, and negative correlation with proportions of CD8+ cells, CD8+CD28- cells. CONCLUSIONS This study suggested PAB, TRF, and ALB could be used as immunosenescence indicators. PEM might accelerate the process of immunosenescence in elderly males.
Collapse
Affiliation(s)
- Ren-Dan Zhang
- Department of Geriatrics, Shenzhen Longhua District Central Hospital, Shenzhen, PR China
| | - Shi-Qin Jiang
- Department of Clinical Pharmacy, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen, PR China
| | - Feng-Juan Yan
- Department of Geriatrics, Shenzhen Longhua District Central Hospital, Shenzhen, PR China
| | - Lei Ruan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Cun-Tai Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Xiao-Qing Quan
- Department of Geriatrics, Shenzhen Longhua District Central Hospital, Shenzhen, PR China
| |
Collapse
|
2
|
Gianotti L, Nespoli L, Sandini M. Pharmaconutrition: Which substrates? EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2024; 50:106798. [PMID: 36526494 DOI: 10.1016/j.ejso.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 12/10/2022] [Indexed: 12/14/2022]
Abstract
With the term "pharmaconutrition" or "immunonutrition" is intended the use of specific nutritional substrates having the ability of modulating specific mechanisms involved in several immune and inflammatory pathways. To achieve these goals, these substrates have to be administered with over physiologic dose. Glutamine and omega-3 polyunsaturated fatty acids, used as single substrate, did not show clear clinical advantages on solid endpoints such as postoperative complications. Despite several multiple substrate enteral feeds are available on the market, very few of them have been tested in randomized clinical trial to prove efficacy. The most extensive investigated formulation is a combination of arginine, omega-3 fatty acids, ribonucleic acid with or without glutamine. Several meta-analyses of randomized clinical trials have been conducted to compare the effects of enteral immunonutrition with control diets on post-surgical morbidity. The results consistently showed that the use of enteral multiple substrate formulas significantly reduced infectious complications and duration of hospitalization. In a more contemporary view, pharmaconutrition should be tested more accurately in the contest of enhanced recovery programs, during neoadjuvant chemotherapy, and in the prehabilitation setting.
Collapse
Affiliation(s)
- Luca Gianotti
- School of Medicine and Surgery, Milano-Bicocca University, Department of Surgery, IRCCS San Gerardo Hospital, Monza, Italy.
| | - Luca Nespoli
- School of Medicine and Surgery, Milano-Bicocca University, Department of Surgery, IRCCS San Gerardo Hospital, Monza, Italy
| | - Marta Sandini
- Surgical Oncology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
| |
Collapse
|
3
|
Chang HC, Huang WY, Chen PH, Huang TW, Gautama MSN. Effectiveness of glutamine for the treatment of radiodermatitis in cancer patients: a meta-analysis of randomized controlled trials. Support Care Cancer 2024; 32:201. [PMID: 38427125 DOI: 10.1007/s00520-024-08411-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND After receiving radiation therapy, 60%-95% of patients with cancer develop radiodermatitis, which causes pain, wound infection, and poor quality of life. Glutamine is a popular nutritional supplement for patients with cancer. Several studies examined the usefulness of glutamine for reducing radiodermatitis. However, there is still no consolidated evidence for clinical use. METHODS We searched PubMed, Embase, Cochrane Library, CINAHL PLUS, and the China Knowledge Resource Integrated Database for the relevant literature published up to March 2023, without language restrictions. Two reviewers screened, filtered, and appraised these articles independently, and their data were pooled using a random-effects model. RESULTS Five randomized controlled trials (RCTs) with 218 participants were analyzed. The incidence of radiodermatitis in the glutamine group (89/110) was significantly lower than in the placebo group (99/108; risk ratio [RR], 0.90; 95% CI, 0.81-1.00; p = 0.05; I2 = 7%). The incidence of moderate to severe radiodermatitis was significantly lower in the glutamine group than in the placebo group (RR, 0.49; 95% CI, 0.32-0.76; p = 0.001; I2 = 52%). Moreover, subgroup analysis demonstrated heterogeneity (I2 = 52%) for moderate to severe radiodermatitis, the risk of which might be significantly reduced by a glutamine dose of 20-30 g/day (RR, 0.60; 95% CI, 0.41-0.87; I2 = 0%). CONCLUSION The meta-analysis indicate that glutamine might lead to a lower incidence of radiodermatitis, and that a glutamine dose of 20-30 g/day might decrease the incidence of moderate to severe dermatitis. Thus, the serious impact of radiodermatitis on treatment follow-up makes the clinical use of glutamine even more important. PROSPERO number: CRD42021254394.
Collapse
Affiliation(s)
- Hsu-Chieh Chang
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
- Department of Nursing, Tri-Service General Hospital Beitou Branch, National Defense Medical Center, Taipei, Taiwan
| | - Wen-Yen Huang
- Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Po-Huang Chen
- Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Tsai-Wei Huang
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan.
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.
- Research Center in Nursing Clinical Practice, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
- Department of Nursing, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
| | | |
Collapse
|
4
|
Liu Z, Liu M, Wang H, Qin P, Di Y, Jiang S, Li Y, Huang L, Jiao N, Yang W. Glutamine attenuates bisphenol A-induced intestinal inflammation by regulating gut microbiota and TLR4-p38/MAPK-NF-κB pathway in piglets. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115836. [PMID: 38154151 DOI: 10.1016/j.ecoenv.2023.115836] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/14/2023] [Accepted: 12/12/2023] [Indexed: 12/30/2023]
Abstract
Bisphenol A (BPA), as a kind of widely exerted environmental hazardous material, brings toxicity to both humans and animals. This study aimed to investigate the role of glutamine (Gln) in intestinal inflammation and microbiota in BPA-challenged piglets. Thirty-two piglets were randomly divided into four groups according to 2 factors including BPA (0 vs. 0.1%) and Gln (0 vs. 1%) supplemented in basal diet for a 42-day feeding experiment. The results showed BPA exposure impaired piglet growth, induced intestinal inflammation and disturbed microbiota balance. However, dietary Gln supplementation improved the growth performance, while decreasing serum pro-inflammatory cytokine levels in BPA-challenged piglets. In addition, Gln attenuated intestinal mucosal damage and inflammation by normalizing the activation of toll-like receptor 4 (TLR4)-p38/MAPK-nuclear factor-kappa B (NF-κB) pathway caused by BPA. Moreover, dietary Gln supplementation decreased the abundance of Actinobacteriota and Proteobacteria, and attenuated the decreased abundance of Roseburia, Prevotella, Romboutsia and Phascolarctobacterium and the content of short-chain fatty acids in cecum contents caused by BPA exposure. Moreover, there exerted potential relevance between the gut microbiota and pro-inflammatory cytokines and cecal short-chain fatty acids. In conclusion, Gln is critical nutrition for attenuating BPA-induced intestinal inflammation, which is partially mediated by regulating microbial balance and suppressing the TLR4/p38 MAPK/NF-κB signaling.
Collapse
Affiliation(s)
- Zihao Liu
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Min Liu
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Huiru Wang
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Pengxiang Qin
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Yanjiao Di
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Shuzhen Jiang
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Yang Li
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Libo Huang
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Ning Jiao
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China.
| | - Weiren Yang
- Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China.
| |
Collapse
|
5
|
Ghini V, Vieri W, Celli T, Pecchioli V, Boccia N, Alonso-Vásquez T, Pelagatti L, Fondi M, Luchinat C, Bertini L, Vannucchi V, Landini G, Turano P. COVID-19: A complex disease with a unique metabolic signature. PLoS Pathog 2023; 19:e1011787. [PMID: 37943960 PMCID: PMC10662774 DOI: 10.1371/journal.ppat.1011787] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 11/21/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023] Open
Abstract
Plasma of COVID-19 patients contains a strong metabolomic/lipoproteomic signature, revealed by the NMR analysis of a cohort of >500 patients sampled during various waves of COVID-19 infection, corresponding to the spread of different variants, and having different vaccination status. This composite signature highlights common traits of the SARS-CoV-2 infection. The most dysregulated molecules display concentration trends that scale with disease severity and might serve as prognostic markers for fatal events. Metabolomics evidence is then used as input data for a sex-specific multi-organ metabolic model. This reconstruction provides a comprehensive view of the impact of COVID-19 on the entire human metabolism. The human (male and female) metabolic network is strongly impacted by the disease to an extent dictated by its severity. A marked metabolic reprogramming at the level of many organs indicates an increase in the generic energetic demand of the organism following infection. Sex-specific modulation of immune response is also suggested.
Collapse
Affiliation(s)
- Veronica Ghini
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino Florence, Italy
- Magnetic Resonance Center (CERM), University of Florence, Sesto Fiorentino, Florence, Italy
| | - Walter Vieri
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino Florence, Italy
- Department of Biology, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Tommaso Celli
- Internal Medicine, Santa Maria Nuova Hospital, Florence, Florence, Italy
| | - Valentina Pecchioli
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino Florence, Italy
- Magnetic Resonance Center (CERM), University of Florence, Sesto Fiorentino, Florence, Italy
| | - Nunzia Boccia
- Internal Medicine, Santa Maria Nuova Hospital, Florence, Florence, Italy
| | - Tania Alonso-Vásquez
- Department of Biology, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Lorenzo Pelagatti
- Internal Medicine, Santa Maria Nuova Hospital, Florence, Florence, Italy
| | - Marco Fondi
- Department of Biology, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Claudio Luchinat
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino Florence, Italy
- Magnetic Resonance Center (CERM), University of Florence, Sesto Fiorentino, Florence, Italy
- Consorzio Interuniversitario Risonanze Magnetiche di Metallo Proteine (CIRMMP), Sesto Fiorentino Florence, Italy
| | - Laura Bertini
- Internal Medicine, Santa Maria Nuova Hospital, Florence, Florence, Italy
| | - Vieri Vannucchi
- Internal Medicine, Santa Maria Nuova Hospital, Florence, Florence, Italy
| | - Giancarlo Landini
- Internal Medicine, Santa Maria Nuova Hospital, Florence, Florence, Italy
| | - Paola Turano
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino Florence, Italy
- Magnetic Resonance Center (CERM), University of Florence, Sesto Fiorentino, Florence, Italy
- Consorzio Interuniversitario Risonanze Magnetiche di Metallo Proteine (CIRMMP), Sesto Fiorentino Florence, Italy
| |
Collapse
|
6
|
Li S, Wen X, Yang X, Wang L, Gao K, Liang X, Xiao H. Glutamine protects intestinal immunity through microbial metabolites rather than microbiota. Int Immunopharmacol 2023; 124:110832. [PMID: 37634449 DOI: 10.1016/j.intimp.2023.110832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 08/29/2023]
Abstract
Glutamine has anti-inflammatory properties as well as the ability to maintain the integrity of the intestinal barrier. In our previous study, we found that 1.0% glutamine promoted SIgA (secretory immunoglobulin A) synthesis in the gut via both T cell-dependent and non-dependent processes, as well as via the intestinal microbiota. The purpose of this study was to investigate whether the intestinal microbiota or microbial metabolites regulate SIgA synthesis. In the mouse model, supplementation with 1.0% glutamine had no significant effect on the intestinal microbiota, but KEGG function prediction showed the difference on microbiota metabolites. Therefore, in this study, untargeted metabolomics techniques were used to detect and analyze the metabolic changes of glutamine in intestinal luminal contents. Metabolomics showed that in the positive ion (POS) mode, a total of 1446 metabolic differentials (VIP ≥ 1, P < 0.05, FC ≥ 2 or FC ≤ 0.5) were annotated in samples treated with glutamine-supplemented group compared to control group, of which 922 were up-regulated and 524 down-regulated. In the negative ion (NEG) mode, 370 differential metabolites (VIP ≥ 1, P < 0.05, FC ≥ 2 or FC ≤ 0.5) were screened, of which 220 were up-regulated and 150 down-regulated. These differential metabolites mainly include bile secretion synthesis, ABC transporters, diterpenoids and other secondary metabolites. KEGG analysis showed that propionic acid metabolism, TCA cycle, endoplasmic reticulum protein processing, nitrogen metabolism and other metabolic pathways were active. The above metabolic pathways and differential metabolites have positive effects on intestinal development and intestinal immunity, and combined with our previous studies, we conclude that glutamine supplementation can may maintain intestinal homeostasis and improving intestinal immunity through intestinal microbial metabolites.
Collapse
Affiliation(s)
- Shuai Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China; State Key Laboratory of Swine and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China
| | - Xiaolu Wen
- State Key Laboratory of Swine and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China
| | - Xuefen Yang
- State Key Laboratory of Swine and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China
| | - Li Wang
- State Key Laboratory of Swine and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China
| | - Kaiguo Gao
- State Key Laboratory of Swine and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China
| | - Xingwei Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Hao Xiao
- State Key Laboratory of Swine and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China.
| |
Collapse
|
7
|
Fan H, Zhang S, Yuan Y, Chen S, Li W, Wang Z, Xiang Y, Li J, Ma X, Liu Y. Glutamine metabolism-related genes predict prognosis and reshape tumor microenvironment immune characteristics in diffuse gliomas. Front Neurol 2023; 14:1104738. [PMID: 36970537 PMCID: PMC10036600 DOI: 10.3389/fneur.2023.1104738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/15/2023] [Indexed: 03/12/2023] Open
Abstract
BackgroundDiffuse gliomas possess a kind of malignant brain tumor with high mortality. Glutamine represents the most abundant and versatile amino acid in the body. Glutamine not only plays an important role in cell metabolism but also involves in cell survival and malignancies progression. Recent studies indicate that glutamine could also affect the metabolism of immune cells in the tumor microenvironment (TME).Materials and methodsThe transcriptome data and clinicopathological information of patients with glioma were acquired from TCGA, CGGA, and West China Hospital (WCH). The glutamine metabolism-related genes (GMRGs) were retrieved from the Molecular Signature Database. Consensus clustering analysis was used to discover expression patterns of GMRGs, and glutamine metabolism risk scores (GMRSs) were established to model tumor aggressiveness-related GMRG expression signature. ESTIMATE and CIBERSORTx were applied to depict the TME immune landscape. The tumor immunological phenotype analysis and TIDE were utilized for predicting the therapeutic response of immunotherapy.ResultsA total of 106 GMRGs were retrieved. Two distinct clusters were established by consensus clustering analysis, which showed a close association with the IDH mutational status of gliomas. In both IDH-mutant and IDH-wildtype gliomas, cluster 2 had significantly shorter overall survival compared with cluster 1, and the differentially expressed genes between the two clusters enriched in pathways related to malignant transformation as well as immunity. In silico TME analysis of the two IDH subtypes revealed not only significantly different immune cell infiltrations and immune phenotypes between the GMRG expression clusters but also different predicted responses to immunotherapy. After the screening, a total of 10 GMRGs were selected to build the GMRS. Survival analysis demonstrated the independent prognostic role of GMRS. Prognostic nomograms were established to predict 1-, 2-, and 3-year survival rates in the four cohorts.ConclusionDifferent subtypes of glutamine metabolism could affect the aggressiveness and TME immune features of diffuse glioma, despite their IDH mutational status. The expression signature of GMRGs could not only predict the outcome of patients with glioma but also be combined into an accurate prognostic nomogram.
Collapse
Affiliation(s)
- Huanhuan Fan
- Psychiatric Laboratory and Mental Health Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Shuxin Zhang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yunbo Yuan
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Siliang Chen
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Wenhao Li
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Zhihao Wang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yufan Xiang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Junhong Li
- Department of Neurosurgery, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Xiaohong Ma
- Psychiatric Laboratory and Mental Health Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Xiaohong Ma
| | - Yanhui Liu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Yanhui Liu
| |
Collapse
|
8
|
Martin FP, Tytgat HLP, Krogh Pedersen H, Moine D, Eklund AC, Berger B, Sprenger N. Host-microbial co-metabolites modulated by human milk oligosaccharides relate to reduced risk of respiratory tract infections. Front Nutr 2022; 9:935711. [PMID: 35990340 PMCID: PMC9386273 DOI: 10.3389/fnut.2022.935711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/13/2022] [Indexed: 11/29/2022] Open
Abstract
Human milk oligosaccharides (HMOs) are structurally diverse oligosaccharides present in breast milk, supporting the development of the gut microbiota and immune system. Previously, 2-HMO (2'fucosyllactose, lacto-N-neotetraose) compared to control formula feeding was associated with reduced risk of lower respiratory tract infections (LRTIs), in part linked to lower acetate and higher bifidobacteria proportions. Here, our objective was to gain further insight into additional molecular pathways linking the 2-HMO formula feeding and LRTI mitigation. From the same trial, we measured the microbiota composition and 743 known biochemical species in infant stool at 3 months of age using shotgun metagenomic sequencing and untargeted mass spectrometry metabolomics. We used multivariate analysis to identify biochemicals associated to 2-HMO formula feeding and LRTI and integrated those findings with the microbiota compositional data. Three molecular pathways stood out: increased gamma-glutamylation and N-acetylation of amino acids and decreased inflammatory signaling lipids. Integration of stool metagenomic data revealed some Bifidobacterium and Bacteroides species to be implicated. These findings deepen our understanding of the infant gut/microbiome co-metabolism in early life and provide evidence for how such metabolic changes may influence immune competence at distant mucosal sites such as the airways.
Collapse
Affiliation(s)
- François-Pierre Martin
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Hanne L P Tytgat
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | | | - Deborah Moine
- Nestlé Institute of Food Safety and Analytical Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | | | - Bernard Berger
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Norbert Sprenger
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| |
Collapse
|
9
|
Circulating Metabolites in Relation to the Kidney Allograft Function in Posttransplant Patients. Metabolites 2022; 12:metabo12070661. [PMID: 35888785 PMCID: PMC9318187 DOI: 10.3390/metabo12070661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/14/2022] [Accepted: 07/14/2022] [Indexed: 12/05/2022] Open
Abstract
End-stage kidney disease is preferably treated by kidney transplantation. The suboptimal function of the allograft often results in misbalances in kidney-controlled processes and requires long-term monitoring of allograft function and viability. As the kidneys are organs with a very high metabolomic rate, a metabolomics approach is suitable to describe systematic changes in post-transplant patients and has great potential for monitoring allograft function, which has not been described yet. In this study, we used blood plasma samples from 55 patients after primary kidney transplantation identically treated with immunosuppressants with follow-up 50 months in the mean after surgery and evaluated relative levels of basal plasma metabolites detectable by NMR spectroscopy. We were looking for the correlations between circulating metabolites levels and allograft performance and allograft rejection features. Our results imply a quantitative relationship between restricted renal function, insufficient hydroxylation of phenylalanine to tyrosine, lowered renal glutamine utilization, shifted nitrogen balance, and other alterations that are not related exclusively to the metabolism of the kidney. No link between allograft function and energy metabolism can be concluded, as no changes were found for glucose, glycolytic intermediates, and 3-hydroxybutyrate as a ketone body representative. The observed changes are to be seen as a superposition of changes in the comprehensive inter-organ metabolic exchange, when the restricted function of one organ may induce compensatory effects or cause secondary alterations. Particular differences in plasma metabolite levels in patients with acute cellular and antibody-mediated allograft rejection were considered rather to be related to the loss of kidney function than to the molecular mechanism of graft rejection since they largely follow the alterations observed by restricted allograft function. In the end, we showed using a simple mathematical model, multilinear regression, that the basal plasmatic metabolites correlated with allograft function expressed by the level of glomerular filtration rate (with creatinine: p-value = 4.0 × 10−26 and r = 0.94, without creatinine: p-value = 3.2 × 10−22 and r = 0.91) make the noninvasive estimation of the allograft function feasible.
Collapse
|
10
|
Cai B, Chen H, Wan P, Luo L, Ye Z, Huang J, Chen D, Pan J. Isolation and identification of immunomodulatory peptides from the protein hydrolysate of tuna trimmings (Thunnas albacares). Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
11
|
Jiang X, Shi P, Jiang L, Qiu J, Xu B, Pan Y, Zhou Q. In vivo toxicity evaluations of halophenolic disinfection byproducts in drinking water: A multi-omics analysis of toxic mechanisms. WATER RESEARCH 2022; 218:118431. [PMID: 35468502 DOI: 10.1016/j.watres.2022.118431] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/18/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
Halophenolic disinfection byproducts (DBPs) in drinking water have attracted considerable concerns in recent years due to their wide occurrence and high toxicity. The liver has been demonstrated as a major target organ for several halophenolic DBPs. However, little is known about the underlying mechanisms of liver damage caused by halophenolic DBPs. In this study, 2,4,6-trichlorophenol (TCP), 2,4,6-tribromophenol (TBP) and 2,4,6-triiodiophenol (TIP) were selected as representative halophenolic DBPs and exposed to C57BL/6 mice at an environmentally-relevant concentration (0.5 μg/L) and two toxicological concentrations (10 and 200 μg/L) for 12 weeks. Then, a combination of histopathologic and biochemical examination, liver transcriptome, serum metabolome, and gut microbiome was adopted. It was found that trihalophenol exposure significantly elevated the serum levels of alkaline phosphatase and albumin. Liver inflammation was observed at toxicological concentrations in the histopathological examination. Transcriptome results showed that the three trihalophenols could impact immune-related pathways at 0.5 μg/L, which further contributed to the disturbance of pathways in infectious diseases and cancers. Notably, TBP and TIP had higher immunosuppressive effects than TCP, which might lead to uncontrolled infection and cancer. In terms of serum metabolic profiles, energy metabolism pathway of citrate cycle and amino acid metabolism pathways of valine, leucine, and isoleucine were also significantly affected. Integration of the metabolomic and transcriptomic data suggested that a 12-week trihalophenol exposure could prominently disturb the glutathione metabolism pathway, indicating the impaired antioxidation and detoxification abilities in liver. Moreover, the disorder of the intestinal flora could interfere with immune regulation and host metabolism. This study reveals the toxic effects of halophenolic DBPs on mammalian liver and provides novel insights into the underlying mechanisms of hepatotoxicity.
Collapse
Affiliation(s)
- Xiaoqin Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Peng Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Liujing Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Jingfan Qiu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Bin Xu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China.
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China.
| |
Collapse
|
12
|
Early Stepdown Weaning of Dairy Calves with Glutamine and Branched-Chain Amino Acid Supplementations. Animals (Basel) 2022; 12:ani12121474. [PMID: 35739810 PMCID: PMC9219432 DOI: 10.3390/ani12121474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/31/2022] [Accepted: 06/05/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary We demonstrated previously that supplementation of glutamine (Gln) at 2.0% of dry matter intake (DMI) increased the rate at which dairy calves achieved ≥1.0 kg/d starter feed intake (SFI) during weaning. Because Gln supplements at <1.0% of DMI or branched-chain amino acid (BCAA) supplements have been shown to improve the performance of weaning piglets, we examined the effects of a lower dose of Gln (8.0 g/d equivalent to 1% of DMI) alone or in combination with BCAA supplementations on SFI and average daily gain (ADG) in this study. Amino acids did not affect SFI or ADG during the supplementations but decreased post-weaning SFI in an additive manner even though the ADG was not affected. The blood analysis on the last day of supplementations revealed a possibility for the Gln and BCAA supplementations to suppress SFI through leptin and serotonin secreted by the gastrointestinal tract. Abstract The study objective was to examine the effects of supplementing Gln and BCAA on the SFI and ADG of weaning dairy calves. Holstein heifer calves (11 calves /treatment) at 35 d of age were assigned to: (1) no amino acids (CTL), (2) Gln (8.0 g/d) alone (GLN), or (3) Gln (8.0 g/d) and BCAA (GLNB; 17.0, 10.0, and 11.0 g/d leucine, isoleucine, and valine, respectively) supplementations in whole milk during a stepdown weaning scheme. Calves were weaned completely once they achieved ≥1.0 kg/d SFI. Neither GLN nor GLNB affected SFI or ADG in the first week during weaning. The GLNB decreased SFI compared to CTL, but the SFI was similar between CTL and GLN in the remainder of the weaning scheme. All calves were weaned at 50 d of age. The SFI of GLNB was lower than that of GLN, and the SFI of both GLN and GLNB were lower than CTL post-weaning. The decreased SFI did not alter ADG during weaning or post-weaning. The GLNB tended to have higher plasma leptin and lower plasma serotonin concentrations compared to CTL. Glutamine and BCAA seem to affect the SFI of calves by modulating the secretions of endocrine cells in the gastrointestinal tract.
Collapse
|
13
|
Negara BFSP, Gong HJ, Lee MJ, Choi JS. Effect of Steam and Smoke Cooking Processes on Web-Foot Octopus ( Amphioctopus sp.) Home Meal Replacement Product. Foods 2021; 10:foods10112825. [PMID: 34829106 PMCID: PMC8623991 DOI: 10.3390/foods10112825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 11/30/2022] Open
Abstract
In Korea, the web-foot octopus (Amphioctopus sp.) is commonly consumed as jjukkumi bokkeum, a spicy stir-fried octopus dish. Using steaming and smoking methods, we made jjukkumi bokkeum home meal replacement (HMR) products. The response surface methodology (RSM) was employed to optimize the steam and smoke processes. Quick freezing was applied to freeze the test product at −35 °C. Then, the physicochemical, biological, nutritional characteristics, and shelf-life of the test HMR products were evaluated. The optimal conditions for steaming and smoking were 95 °C for 2 min and 70 °C for 11 min, respectively. The pH, volatile basic nitrogen content, and thiobarbituric acid-reactive substances content decreased after steaming and smoking, indicating that these processes maintained these parameters well. Sensory evaluation revealed that there were no changes in these characteristics after freezing and reheating. Further, the test HMR products contained the daily nutritional requirements of macro and micronutrients, as well as amino acids and fatty acids. The shelf-life of the HMR products was estimated to be 15 months. The findings of this study indicate that the application of steam and smoke processes to produce a jjukkumi bokkeum HMR product results in a high-quality product with a long shelf-life.
Collapse
Affiliation(s)
- Bertoka Fajar Surya Perwira Negara
- Seafood Research Center, IACF, Silla University, 606, Advanced Seafood Processing Complex, Wonyang-ro, Amnam-dong, Seo-gu, Busan 49277, Korea; (B.F.S.P.N.); (H.-J.G.); (M.-J.L.)
- Department of Food Biotechnology, College of Medical and Life Sciences, Silla University, 140, Baegyang-daero 700 beon-gil, Sasang-gu, Busan 46958, Korea
- Department of Marine Science, University of Bengkulu, Jl. WR. Soepratman, Bengkulu 38371, Indonesia
| | - Hee-Jin Gong
- Seafood Research Center, IACF, Silla University, 606, Advanced Seafood Processing Complex, Wonyang-ro, Amnam-dong, Seo-gu, Busan 49277, Korea; (B.F.S.P.N.); (H.-J.G.); (M.-J.L.)
| | - Mi-Jeong Lee
- Seafood Research Center, IACF, Silla University, 606, Advanced Seafood Processing Complex, Wonyang-ro, Amnam-dong, Seo-gu, Busan 49277, Korea; (B.F.S.P.N.); (H.-J.G.); (M.-J.L.)
| | - Jae-Suk Choi
- Seafood Research Center, IACF, Silla University, 606, Advanced Seafood Processing Complex, Wonyang-ro, Amnam-dong, Seo-gu, Busan 49277, Korea; (B.F.S.P.N.); (H.-J.G.); (M.-J.L.)
- Department of Food Biotechnology, College of Medical and Life Sciences, Silla University, 140, Baegyang-daero 700 beon-gil, Sasang-gu, Busan 46958, Korea
- Correspondence: ; Tel.: +82-51-248-7789
| |
Collapse
|
14
|
Integrated Metabolomics and Proteomics Analyses in the Local Milieu of Islet Allografts in Rejection versus Tolerance. Int J Mol Sci 2021; 22:ijms22168754. [PMID: 34445459 PMCID: PMC8395897 DOI: 10.3390/ijms22168754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/03/2021] [Accepted: 08/11/2021] [Indexed: 11/24/2022] Open
Abstract
An understanding of the immune mechanisms that lead to rejection versus tolerance of allogeneic pancreatic islet grafts is of paramount importance, as it facilitates the development of innovative methods to improve the transplant outcome. Here, we used our established intraocular islet transplant model to gain novel insight into changes in the local metabolome and proteome within the islet allograft’s immediate microenvironment in association with immune-mediated rejection or tolerance. We performed integrated metabolomics and proteomics analyses in aqueous humor samples representative of the graft’s microenvironment under each transplant outcome. The results showed that several free amino acids, small primary amines, and soluble proteins related to the Warburg effect were upregulated or downregulated in association with either outcome. In general, the observed shifts in the local metabolite and protein profiles in association with rejection were consistent with established pro-inflammatory metabolic pathways and those observed in association with tolerance were immune regulatory. Taken together, the current findings further support the potential of metabolic reprogramming of immune cells towards immune regulation through targeted pharmacological and dietary interventions against specific metabolic pathways that promote the Warburg effect to prevent the rejection of transplanted islets and promote their immune tolerance.
Collapse
|
15
|
Dynamic Pneumococcal Genetic Adaptations Support Bacterial Growth and Inflammation during Coinfection with Influenza. Infect Immun 2021; 89:e0002321. [PMID: 33875471 PMCID: PMC8208518 DOI: 10.1128/iai.00023-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Streptococcus pneumoniae (pneumococcus) is one of the primary bacterial pathogens that complicates influenza virus infections. These bacterial coinfections increase influenza-associated morbidity and mortality through a number of immunological and viral-mediated mechanisms, but the specific bacterial genes that contribute to postinfluenza pathogenicity are not known. Here, we used genome-wide transposon mutagenesis (Tn-Seq) to reveal bacterial genes that confer improved fitness in influenza virus-infected hosts. The majority of the 32 genes identified are involved in bacterial metabolism, including nucleotide biosynthesis, amino acid biosynthesis, protein translation, and membrane transport. We generated mutants with single-gene deletions (SGD) of five of the genes identified, SPD1414, SPD2047 (cbiO1), SPD0058 (purD), SPD1098, and SPD0822 (proB), to investigate their effects on in vivo fitness, disease severity, and host immune responses. The growth of the SGD mutants was slightly attenuated in vitro and in vivo, but each still grew to high titers in the lungs of mock- and influenza virus-infected hosts. Despite high bacterial loads, mortality was significantly reduced or delayed with all SGD mutants. Time-dependent reductions in pulmonary neutrophils, inflammatory macrophages, and select proinflammatory cytokines and chemokines were also observed. Immunohistochemical staining further revealed altered neutrophil distribution with reduced degeneration in the lungs of influenza virus-SGD mutant-coinfected animals. These studies demonstrate a critical role for specific bacterial genes and for bacterial metabolism in driving virulence and modulating immune function during influenza-associated bacterial pneumonia.
Collapse
|
16
|
Recomendaciones para la terapia nutricional de pacientes con COVID-19. ACTA COLOMBIANA DE CUIDADO INTENSIVO 2021. [PMCID: PMC7843081 DOI: 10.1016/j.acci.2021.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
17
|
Li X, Zheng S, Wu G. Nutrition and Functions of Amino Acids in Fish. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1285:133-168. [PMID: 33770406 DOI: 10.1007/978-3-030-54462-1_8] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Aquaculture is increasingly important for providing humans with high-quality animal protein to improve growth, development and health. Farm-raised fish and shellfish now exceed captured fisheries for foods. More than 70% of the production cost is dependent on the supply of compound feeds. A public debate or concern over aquaculture is its environmental sustainability as many fish species have high requirements for dietary protein and fishmeal. Protein or amino acids (AAs), which are the major component of tissue growth, are generally the most expensive nutrients in animal production and, therefore, are crucial for aquatic feed development. There is compelling evidence that an adequate supply of both traditionally classified nutritionally essential amino acids (EAAs) and non-essential amino acids (NEAAs) in diets improve the growth, development and production performance of aquatic animals (e.g., larval metamorphosis). The processes for the utilization of dietary AAs or protein utilization by animals include digestion, absorption and metabolism. The digestibility and bioavailability of AAs should be carefully evaluated because feed production processes and AA degradation in the gut affect the amounts of dietary AAs that enter the blood circulation. Absorbed AAs are utilized for the syntheses of protein, peptides, AAs, and other metabolites (including nucleotides); biological oxidation and ATP production; gluconeogenesis and lipogenesis; and the regulation of acid-base balance, anti-oxidative reactions, and immune responses. Fish producers usually focus on the content or digestibility of dietary crude protein without considering the supply of AAs in the diet. In experiments involving dietary supplementation with AAs, inappropriate AAs (e.g., glycine and glutamate) are often used as the isonitrogenous control. At present, limited knowledge is available about either the cell- and tissue-specific metabolism of AAs or the effects of feed processing methods on the digestion and utilization of AAs in different fish species. These issues should be addressed to develop environment-friendly aquafeeds and reduce feed costs to sustain the global aquaculture.
Collapse
Affiliation(s)
- Xinyu Li
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Shixuan Zheng
- Guangdong Yuehai Feeds Group Co., Ltd., Zhanjiang, Guangdong, China
| | - Guoyao Wu
- Department of Animal Science, Texas A&M University, College Station, TX, USA.
| |
Collapse
|
18
|
Application of High-Frequency Defrosting, Superheated Steam, and Quick-Freezing Treatments to Improve the Quality of Seafood Home Meal Replacement Products Consisting of the Adductor Muscle of Pen Shells and Common Squid Meat. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11072926] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We developed a new seafood home meal replacement (HMR) product containing the adductor muscle of the pen shell (AMPS) and common squid meat (CSM) via high-frequency defrosting (HFD), superheated steam, and quick freezing. Test HMR products were produced by mixing defrosted and roasted AMPS, CSM, and sauce in ratios of 27.5, 27.5, and 45.0% (w/w), respectively, followed by quick freezing at −35 °C in a polypropylene plastic bowl covered with a plastic film. The chemical characteristics, nutritional quality, microbial and sensory properties, and shelf life of the product were examined. The response surface methodology identified the optimal temperature and heating time of the superheated steam for AMPS (220 °C, 1 min) and CSM (300 °C, 1.5 min). Chemical characteristics showed low levels of volatile basic nitrogen (9.45 mg%) and thiobarbituric acid-reactive substances (1.13 mg Malondialdehyde [MDA]/kg). No significant changes (p < 0.05) were observed in microbial, color, flavor, taste, texture, and overall acceptance at −23 °C for 90 days. After reheating, the sensory scores varied from “like moderately” to “like very much.” The shelf life of the HMR product was estimated to be 24 months. In conclusion, HFD, superheated steam, and quick freezing successfully improved product quality, with little loss of nutrition and texture.
Collapse
|
19
|
Azeredo R, Machado M, Fontinha F, Fernández-Boo S, Conceição LEC, Dias J, Costas B. Dietary arginine and citrulline supplementation modulates the immune condition and inflammatory response of European seabass. FISH & SHELLFISH IMMUNOLOGY 2020; 106:451-463. [PMID: 32800985 DOI: 10.1016/j.fsi.2020.07.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 07/14/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
The present study was designed to determine the modulatory effects of arginine and citrulline dietary supplementation on the immune condition and inflammatory response of European seabass, Dicentrarchus labrax. Four diets were manufactured: a control diet (CTRL) was formulated to meet the indispensable amino acids profile established for seabass. Based on this formulation, three other diets were supplemented with l-arginine at two different levels (0.5% and 1%, ARG1 and ARG2, respectively) and l-citrulline at 0.5% (CIT). Fish were fed these diets for 2 or 4 weeks under controlled conditions. At the end of 4 weeks, fish from all dietary treatments were intraperitoneally-injected with Photobacterium damselae piscicida and sampled after 4, 24 our 48 h. Immune status was characterized by a lymphocyte time-dependent decrease regardless of dietary treatment, whereas peroxidase values dropped in time in fish fed ARG1 and ARG2 and was lower at 4 weeks in fish fed ARG1 than in fish fed CTRL. Up-regulation of several genes was more evident in ARG1-and CIT-fed fish, though pro-inflammatory cytokines were down-regulated by CIT dietary treatment. Following immune stimulation, seabass fed ARG1 showed a decrease in neutrophils and monocytes circulating numbers. On the other hand, expression of 17 selected immune and inflammatory responses genes was barely affected by dietary treatments. Based on the analyzed parameters, results suggest an active role of dietary arginine/citrulline supplementation in modulating immune defences that seem to translate into a suppressed immune repertoire, mostly at the cell response level. The observed changes due to citrulline dietary supplementation were in part similar to those caused by arginine, suggesting that citrulline might have been used by macrophages as an arginine precursor and then engaged in similar immune-impairment leading mechanisms.
Collapse
Affiliation(s)
- Rita Azeredo
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Matosinhos, Portugal.
| | - Marina Machado
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Matosinhos, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal; Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Filipa Fontinha
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Sergio Fernández-Boo
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Matosinhos, Portugal
| | | | | | - Benjamín Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| |
Collapse
|
20
|
Cao T, Jin JP. Evolution of Flight Muscle Contractility and Energetic Efficiency. Front Physiol 2020; 11:1038. [PMID: 33162892 PMCID: PMC7581897 DOI: 10.3389/fphys.2020.01038] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 07/29/2020] [Indexed: 12/19/2022] Open
Abstract
The powered flight of animals requires efficient and sustainable contractions of the wing muscles of various flying species. Despite their high degree of phylogenetic divergence, flight muscles in insects and vertebrates are striated muscles with similarly specialized sarcomeric structure and basic mechanisms of contraction and relaxation. Comparative studies examining flight muscles together with other striated muscles can provide valuable insights into the fundamental mechanisms of muscle contraction and energetic efficiency. Here, we conducted a literature review and data mining to investigate the independent emergence and evolution of flight muscles in insects, birds, and bats, and the likely molecular basis of their contractile features and energetic efficiency. Bird and bat flight muscles have different metabolic rates that reflect differences in energetic efficiencies while having similar contractile machinery that is under the selection of similar natural environments. The significantly lower efficiency of insect flight muscles along with minimized energy expenditure in Ca2+ handling is discussed as a potential mechanism to increase the efficiency of mammalian striated muscles. A better understanding of the molecular evolution of myofilament proteins in the context of physiological functions of invertebrate and vertebrate flight muscles can help explore novel approaches to enhance the performance and efficiency of skeletal and cardiac muscles for the improvement of human health.
Collapse
Affiliation(s)
| | - J.-P. Jin
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, United States
| |
Collapse
|
21
|
Gandra JR, Pedrini CA, Cônsolo NRB, Acosta AP, Seno LO, Barbosa LCGS, Noia IZ, Buarque VLM, Padilla ARH, Colnago LA, Gandra ERS. Metabolome fingerprints, performance and carcass quality of beef calves supplemented with antibiotic free additive. Anim Biotechnol 2020; 33:710-722. [DOI: 10.1080/10495398.2020.1828095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jefferson R. Gandra
- Instituto de Estudos em Desenvolvimento Agrário e Regional, Universidade Federal do Sul e Sudeste do Pará, Marabá-PA, Brazil
| | - Cibeli A. Pedrini
- Department of Animal Science, Universidade Federal da Grande Dourados, Dourados, MS, Brazil
| | - Nara R. B. Cônsolo
- Department of Animal Science, School of Animal Science and Food Engineering, Universidade of São Paulo, Pirassununga, SP, Brazil
| | - Anderson P. Acosta
- Postgraduate Program in Sustainable Production and Animal Health, Center for Agrarian Sciences, State University of Maringá, Umuarama, Brazil
| | - Leonardo O. Seno
- Department of Animal Science, Universidade Federal da Grande Dourados, Dourados, MS, Brazil
| | - Luis C. G. S. Barbosa
- Department of Animal Science, School of Animal Science and Food Engineering, Universidade of São Paulo, Pirassununga, SP, Brazil
| | - Isabelle Z. Noia
- Department of Animal Science, Universidade Federal da Grande Dourados, Dourados, MS, Brazil
| | - Vicente L. M. Buarque
- Department of Animal Science, School of Animal Science and Food Engineering, Universidade of São Paulo, Pirassununga, SP, Brazil
| | | | | | - Erika R. S. Gandra
- Instituto de Estudos em Desenvolvimento Agrário e Regional, Universidade Federal do Sul e Sudeste do Pará, Marabá-PA, Brazil
| |
Collapse
|
22
|
Pocate-Cheriet K, Santulli P, Kateb F, Bourdon M, Maignien C, Batteux F, Chouzenoux S, Patrat C, Wolf JP, Bertho G, Chapron C. The follicular fluid metabolome differs according to the endometriosis phenotype. Reprod Biomed Online 2020; 41:1023-1037. [PMID: 33046374 DOI: 10.1016/j.rbmo.2020.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/12/2020] [Accepted: 09/02/2020] [Indexed: 12/11/2022]
Abstract
RESEARCH QUESTION Is there a follicular fluid-specific metabolic profile in deep infiltrating endometriosis (DIE) depending on the presence of an associated ovarian endometrioma (OMA) that could lead to the identification of biomarkers for diagnosis and prognosis of the disease? DESIGN In this prospective cohort study, proton nuclear magnetic resonance (1H-NMR) experiments were carried out on 50 follicular fluid samples from patients presenting with DIE, associated or not associated with an OMA, and 29 follicular fluid samples from patients with infertility caused by a tubal obstruction. RESULTS Concentrations of glucose, citrate, creatine and amino acids such as tyrosine and alanine were lower in women with DIE than control participants, whereas concentrations of lactate, pyruvate, lipids and ketone bodies were higher. Metabolic analysis revealed enhanced concentrations of glycerol and ketone bodies in patients with OMA, indicative of an activation of lipolysis followed by beta-oxidation. Concentrations of lactate and pyruvate were increased in patients without OMA, whereas the concentration of glucose was decreased, highlighting activation of the anaerobic glycolysis pathway. Differences in concentrations of amino acids such as threonine and glutamine were also statistically relevant in discriminating between the presence or absence of OMA. CONCLUSIONS Results indicate a mitochondrial dysregulation in endometriosis phenotypes, with a modified balance between anaerobic glycolysis and beta-oxidation in OMA phenotypes that could affect the fertility of women with endometriosis. As the composition of the follicular fluid has been shown to be correlated with oocyte development and outcome of implantation after fertilization, these findings may help explain the high level of infertility in these patients.
Collapse
Affiliation(s)
- Khaled Pocate-Cheriet
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France; Département "Développement, Reproduction et Cancer", Institut Cochin, INSERM U1016, Université de Paris, Paris, France.
| | - Pietro Santulli
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Département "Développement, Reproduction et Cancer", Institut Cochin, INSERM U1016, Université de Paris, Paris, France; Département de Gynécologie Obstétrique II et Médecine de la Reproduction, Paris, France
| | - Fatiha Kateb
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, UMR 8601-CNRS, Université de Paris, Campus Saint-Germain-des-Prés, Paris, France
| | - Mathilde Bourdon
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Département "Développement, Reproduction et Cancer", Institut Cochin, INSERM U1016, Université de Paris, Paris, France; Département de Gynécologie Obstétrique II et Médecine de la Reproduction, Paris, France
| | - Chloé Maignien
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Département de Gynécologie Obstétrique II et Médecine de la Reproduction, Paris, France
| | - Frédéric Batteux
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Département "Développement, Reproduction et Cancer", Institut Cochin, INSERM U1016, Université de Paris, Paris, France; Service d'Immunologie Biologique, Paris, France
| | - Sandrine Chouzenoux
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Département "Développement, Reproduction et Cancer", Institut Cochin, INSERM U1016, Université de Paris, Paris, France
| | - Catherine Patrat
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - Jean Philippe Wolf
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - Gildas Bertho
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, UMR 8601-CNRS, Université de Paris, Campus Saint-Germain-des-Prés, Paris, France
| | - Charles Chapron
- Université de Paris, Faculté de Médecine, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Cochin (HUPC), Centre Hospitalier Paris Centre, Paris, France; Département "Développement, Reproduction et Cancer", Institut Cochin, INSERM U1016, Université de Paris, Paris, France; Département de Gynécologie Obstétrique II et Médecine de la Reproduction, Paris, France
| |
Collapse
|
23
|
Apostolopoulou A, Haidich AB, Kofina K, Manzanares W, Bouras E, Tsaousi G, Stoppe C, Dardavessis TI, Chourdakis M. Effects of glutamine supplementation on critically ill patients: Focus on efficacy and safety. An overview of systematic reviews. Nutrition 2020; 78:110960. [PMID: 32877810 DOI: 10.1016/j.nut.2020.110960] [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: 04/15/2020] [Revised: 06/29/2020] [Accepted: 07/18/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVES The aim of this overview of systematic reviews was to synthesize, appraise, and present all systematic review (SR) evidence on the clinical efficacy of glutamine administration to severely ill patients. METHODS Medline, Scopus, the Cochrane Library, and Prospero were searched up to March 2020. Systematic reviews and meta-analyses of randomized controlled trials published in English, comparing immunomodulating diets-containing exclusively glutamine-with standard diets for critically ill adult patients were selected. Data were collected from each selected systematic review and all available primary studies. The primary outcome was overall mortality; secondary outcomes were rate of infectious complications, hospital and intensive care unit (ICU) length of stay (LOS). RESULTS Seventeen SRs were eligible for inclusion. Of the SRs, 16 included meta-analyses with moderate degree of overlap (corrected covered area = 10%). These included 117 randomized controlled trials with 9933 patients. Glutamine supplementation was not associated with overall mortality and ICU LOS. However, it may reduce the rate of infectious complications overall (N = 3666, risk ratio, 0.82; 95% confidence interval [CI], 0.73-0.92; I2 = 33%: low quality of evidence). LOS was limited with the supplementation of glutamine (N = 4353 weighted mean difference, -2.90; 95% CI, -3.66 to -2.15; I2 = 81%: very low quality of evidence), but this effect was diminished when only studies with low risk for bias were synthesized. CONCLUSION Glutamine could demonstrate a beneficial role in critical care patients of diminishing the rate of infectious complications and hospital and ICU LOS. However, future studies with better quality would confirm this finding.
Collapse
Affiliation(s)
- Aikaterini Apostolopoulou
- Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece
| | - Anna-Bettina Haidich
- Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece
| | - Konstantinia Kofina
- First University Surgical Department, Faculty of Medicine, Democritus University of Thrace, University Campus, Alexandroupolis, Greece
| | - William Manzanares
- Department of Critical Care, University Hospital. Faculty of Medicine, Universidad de la República, Montevideo, Uruguay
| | - Emmanouil Bouras
- Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece
| | - Georgia Tsaousi
- Department of Anesthesiology and ICU, AHEPA University Hospital, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece
| | - Christian Stoppe
- Department of Intensive Care Medicine, RWTH Aachen University Hospital, Aachen, Germany
| | - Theodoros I Dardavessis
- Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece
| | - Michail Chourdakis
- Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece.
| |
Collapse
|
24
|
Mirabile A, Rivoltini L, Daveri E, Vernieri C, Mele R, Porcu L, Lazzari C, Bulotta A, Viganò MG, Cascinu S, Gregorc V. Metabolism and Immune Modulation in Patients with Solid Tumors: Systematic Review of Preclinical and Clinical Evidence. Cancers (Basel) 2020; 12:E1153. [PMID: 32375310 PMCID: PMC7281426 DOI: 10.3390/cancers12051153] [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: 03/24/2020] [Revised: 04/22/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023] Open
Abstract
Several immunotherapy agents are the standard of care of many solid malignancies. Nevertheless, the majority of patients do not benefit from the currently available immunotherapies. It is therefore of paramount importance to identify the prognostic and predictive factors of tumor response/resistance and to design effective therapeutic strategies to overcome primary resistance and improve the efficacy of immunotherapy. The aim of this review is to underline the influence of the tumor and host metabolism on the antitumor immune response and to discuss possible strategies to improve the efficacy of available treatments by targeting the specific metabolic pathways in tumors or immune cells and by modifying patients' nutritional statuses. A systematic search of the Medline and EMBASE databases was carried out to identify scientific papers published until February 2020, which reported original research articles on the influence of tumor or host metabolism on antitumor immune response. The literature data showed the key role of glycolysis and mitochondrial oxidative phosphorylation, arginine, tryptophan, glutamine, lipid metabolism and microbiome on immune cell function. Moreover, specific nutritional behaviors, such as a low dietary intake of vitamin C, low glycemic index and alpha-linolenic acid, eicosapentenoic acid, docosahexaenoic acid, ornithine ketoglutarate, tryptophan and probiotic supplementation were associated with the potential clinical benefits from the currently available immunotherapies.
Collapse
Affiliation(s)
- Aurora Mirabile
- Department of Medical Oncology, Scientific Institute San Raffaele Hospital, Via Olgettina, 60, 20132 Milan, Italy; (C.L.); (A.B.); (M.G.V.); (S.C.); (V.G.)
| | - Licia Rivoltini
- Immunotherapy of Human Tumors, IRCCS National Cancer Institute (INT) and University of Milan, Via Venezian 1, 20133 Milan, Italy; (L.R.); (E.D.)
| | - Elena Daveri
- Immunotherapy of Human Tumors, IRCCS National Cancer Institute (INT) and University of Milan, Via Venezian 1, 20133 Milan, Italy; (L.R.); (E.D.)
| | - Claudio Vernieri
- Medical Oncology Department, IRCCS IRCCS National Cancer Institute (INT) and University of Milan, Via Venezian 1, 20133 Milan, Italy;
- IFOM, the FIRC Institute of Molecular Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Roberto Mele
- Nutritionist biologist, Hospital Health Direction, Scientific Institute San Raffaele Hospital, Via Olgettina 60, 20132 Milan, Italy;
| | - Luca Porcu
- Methodological Research Unit, Institute of Pharmacological Research Mario Negri, Via Mario Negri 2, 20156 Milan, Italy;
| | - Chiara Lazzari
- Department of Medical Oncology, Scientific Institute San Raffaele Hospital, Via Olgettina, 60, 20132 Milan, Italy; (C.L.); (A.B.); (M.G.V.); (S.C.); (V.G.)
| | - Alessandra Bulotta
- Department of Medical Oncology, Scientific Institute San Raffaele Hospital, Via Olgettina, 60, 20132 Milan, Italy; (C.L.); (A.B.); (M.G.V.); (S.C.); (V.G.)
| | - Maria Grazia Viganò
- Department of Medical Oncology, Scientific Institute San Raffaele Hospital, Via Olgettina, 60, 20132 Milan, Italy; (C.L.); (A.B.); (M.G.V.); (S.C.); (V.G.)
| | - Stefano Cascinu
- Department of Medical Oncology, Scientific Institute San Raffaele Hospital, Via Olgettina, 60, 20132 Milan, Italy; (C.L.); (A.B.); (M.G.V.); (S.C.); (V.G.)
| | - Vanesa Gregorc
- Department of Medical Oncology, Scientific Institute San Raffaele Hospital, Via Olgettina, 60, 20132 Milan, Italy; (C.L.); (A.B.); (M.G.V.); (S.C.); (V.G.)
| |
Collapse
|
25
|
Li M, Li Q, Zheng Y, Shi X, Zhang J, Ma C, Guan B, Peng Y, Yang M, Yue X. New insights into the alterations of full spectrum amino acids in human colostrum and mature milk between different domains based on metabolomics. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03470-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
26
|
Glutaminolysis and Glycolysis Are Essential for Optimal Replication of Marek's Disease Virus. J Virol 2020; 94:JVI.01680-19. [PMID: 31748393 PMCID: PMC6997755 DOI: 10.1128/jvi.01680-19] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/08/2019] [Indexed: 01/16/2023] Open
Abstract
Viruses can manipulate host cellular metabolism to provide energy and essential biosynthetic requirements for efficient replication. Marek’s disease virus (MDV), an avian alphaherpesvirus, causes a deadly lymphoma in chickens and hijacks host cell metabolism. This study provides evidence for the importance of glycolysis and glutaminolysis, but not fatty acid β-oxidation, as an essential energy source for the replication and spread of MDV. Moreover, it suggests that in MDV infection, as in many tumor cells, glutamine is used for generation of energetic and biosynthetic requirements of the MDV infection, while glucose is used biosynthetically. Viruses may hijack glycolysis, glutaminolysis, or fatty acid β-oxidation of host cells to provide the energy and macromolecules required for efficient viral replication. Marek’s disease virus (MDV) causes a deadly lymphoproliferative disease in chickens and modulates metabolism of host cells. Metabolic analysis of MDV-infected chicken embryonic fibroblasts (CEFs) identified elevated levels of metabolites involved in glutamine catabolism, such as glutamic acid, alanine, glycine, pyrimidine, and creatine. In addition, our results demonstrate that glutamine uptake is elevated by MDV-infected cells in vitro. Although glutamine, but not glucose, deprivation significantly reduced cell viability in MDV-infected cells, both glutamine and glucose were required for virus replication and spread. In the presence of minimum glutamine requirements based on optimal cell viability, virus replication was partially rescued by the addition of the tricarboxylic acid (TCA) cycle intermediate, α-ketoglutarate, suggesting that exogenous glutamine is an essential carbon source for the TCA cycle to generate energy and macromolecules required for virus replication. Surprisingly, the inhibition of carnitine palmitoyltransferase 1a (CPT1a), which is elevated in MDV-infected cells, by chemical (etomoxir) or physiological (malonyl-CoA) inhibitors, did not reduce MDV replication, indicating that MDV replication does not require fatty acid β-oxidation. Taken together, our results demonstrate that MDV infection activates anaplerotic substrate from glucose to glutamine to provide energy and macromolecules required for MDV replication, and optimal MDV replication occurs when the cells do not depend on mitochondrial β-oxidation. IMPORTANCE Viruses can manipulate host cellular metabolism to provide energy and essential biosynthetic requirements for efficient replication. Marek’s disease virus (MDV), an avian alphaherpesvirus, causes a deadly lymphoma in chickens and hijacks host cell metabolism. This study provides evidence for the importance of glycolysis and glutaminolysis, but not fatty acid β-oxidation, as an essential energy source for the replication and spread of MDV. Moreover, it suggests that in MDV infection, as in many tumor cells, glutamine is used for generation of energetic and biosynthetic requirements of the MDV infection, while glucose is used biosynthetically.
Collapse
|
27
|
Abstract
Oxidative stress is an important contributor to the pathophysiology of sickle cell disease. The pathways involved are complex and interlinked. L-glutamine is an amino acid with myriad roles in the body, including the synthesis of antioxidants, such as reduced glutathione and the cofactors NAD(H) and NADP(H), as well as nitric oxide—so it has therapeutic potential as an antioxidant. However, the relative impact of L-glutamine on the redox environment in red blood cells in sickle cell disease is not fully understood, and there are few therapeutic trials in sickle cell disease. Following the FDA approval of L-glutamine for sickle cell disease, more research is still needed to understand its clinical effects and role in therapy.
Collapse
Affiliation(s)
- Alina Sadaf
- Cancer and Blood Diseases Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Charles T Quinn
- Cancer and Blood Diseases Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| |
Collapse
|
28
|
Alanyl-glutamine Heals Indomethacin-induced Gastric Ulceration in Rats Via Antisecretory and Anti-apoptotic Mechanisms. J Pediatr Gastroenterol Nutr 2019; 69:710-718. [PMID: 31764439 DOI: 10.1097/mpg.0000000000002474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Alanylglutamine (AG) is a dipeptide that fuels enterocytes and has a coadjuvant role during gut healing. The current study aimed to investigate the potential ulcer-healing effect of AG in indomethacin-induced gastropathy. METHODS Animals (n = 10 rats/group) were randomly allocated into 5 groups. Gastric ulcerated rats were administered AG, AG + dexamethasone, or pantoprazole after indomethacin exposure. RESULTS Comparable to pantoprazole, AG inhibited H-KATPase pump, and elevated the pH of gastric juice. Moreover, the dipeptide increased the serum/mucosal contents of glucagon-like peptide-1 (GLP-1), pS473-Akt, and cyclin-D1. On the contrary, AG abated serum tumor necrosis factor-α and gastric mucosal content of pS45-β catenin, pS9-GSK3β, pS133-CREB, pS536-NF-κB, H2O2, claudin-1, and caspase-3. The administration of dexamethasone before AG hampered its effect on almost all the measured parameters. CONCLUSIONS AG confers its antiulcerogenic/antisecretory potentials by repressing the proton pump to increase the gastric juice pH via boosting p-CREB, p-Akt, p-GSK-3β, and GLP-1. Also, it inhibits apoptosis through suppressing nuclear factor-kappa B/tumor necrosis factor-α/H2O2/claudin-1 cue. This trajectory contributes to loosen the tight junction priming AG-mediated GLP-1/β-catenin/cyclin-D1 that results in pronounced increase in gastric mucosa proliferation. Therefore, the crosstalk between multiple pathways orchestrates the action of AG against gastric ulceration.
Collapse
|
29
|
Wipperman MF, Montrose DC, Gotto AM, Hajjar DP. Mammalian Target of Rapamycin: A Metabolic Rheostat for Regulating Adipose Tissue Function and Cardiovascular Health. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:492-501. [PMID: 30803496 DOI: 10.1016/j.ajpath.2018.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 11/03/2018] [Accepted: 11/28/2018] [Indexed: 12/31/2022]
Abstract
The complex relationship between diet and metabolism is an important contributor to cellular metabolism and health. Over the past few decades, a central role for mammalian target of rapamycin (mTOR) in the regulation of multiple cellular processes, including the response to food intake, maintaining homeostasis, and the pathogenesis of disease, has been shown. Herein, we first review our current understanding of the biochemical functions of mTOR and its response to fluctuations in hormone levels, like insulin. Second, we highlight the role of mTOR in lipogenesis, adipogenesis, β-oxidation of lipids, and ketosis of carbohydrates, lipids, and proteins. Special attention is paid to recent advances in mTOR signaling in white versus brown adipose tissues. Finally, we review how mTOR regulates cardiovascular health and disease. Together, these insights define a clearer picture of the connection between mTOR signaling, metabolic health, and disease.
Collapse
Affiliation(s)
- Matthew F Wipperman
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York; Clinical and Translational Science Center, Weill Cornell Medicine, Cornell University, New York
| | - David C Montrose
- Department of Pathology, Stony Brook Medicine, Stony Brook, New York
| | - Antonio M Gotto
- Department of Medicine, Weill Cornell Medicine, Cornell University, New York
| | - David P Hajjar
- Department of Pathology and Biochemistry, Weill Cornell Medicine, Cornell University, New York.
| |
Collapse
|
30
|
Perna S, Alalwan TA, Alaali Z, Alnashaba T, Gasparri C, Infantino V, Hammad L, Riva A, Petrangolini G, Allegrini P, Rondanelli M. The Role of Glutamine in the Complex Interaction between Gut Microbiota and Health: A Narrative Review. Int J Mol Sci 2019; 20:E5232. [PMID: 31652531 PMCID: PMC6834172 DOI: 10.3390/ijms20205232] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/16/2019] [Accepted: 10/20/2019] [Indexed: 02/07/2023] Open
Abstract
The scientific literature has demonstrated that glutamine is one of the main beneficial amino acids. It plays an important role in gut microbiota and immunity. This paper provides a critical overview of experimental studies (in vitro, in vivo, and clinical) investigating the efficacy of glutamine and its effect on gut microbiota. As a result of this review, we have summarized that glutamine could affect gut microbiota via different mechanisms including the reduction in the ratio of Firmicutes to Bacteroidetes, with the activation of NF-κB and PI3K-Akt pathways, reducing the intestinal colonization (Eimeria lesions) and bacterial overgrowth or bacterial translocation, increasing the production of secretory immunoglobulin A (SIgA) and immunoglobulin A+ (IgA+) cells in the intestinal lumen, and decreasing asparagine levels. The potential applications of glutamine on gut microbiota include, but are not limited to, the management of obesity, bacterial translocation and community, cytokines profiles, and the management of side effects during post-chemotherapy and constipation periods. Further studies and reviews are needed regarding the effects of glutamine supplementation on other conditions in humans.
Collapse
Affiliation(s)
- Simone Perna
- Department of Biology, College of Science, University of Bahrain, 32038 Sakhir, Bahrain.
| | - Tariq A Alalwan
- Department of Biology, College of Science, University of Bahrain, 32038 Sakhir, Bahrain.
| | - Zahraa Alaali
- Department of Biology, College of Science, University of Bahrain, 32038 Sakhir, Bahrain.
| | - Tahera Alnashaba
- Department of Biology, College of Science, University of Bahrain, 32038 Sakhir, Bahrain.
| | - Clara Gasparri
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona ''Istituto Santa Margherita'', University of Pavia, Pavia 27100, Italy.
| | - Vittoria Infantino
- Department of Biomedical Science and Human Oncology, University of Bari, Bari 70121, Italy.
| | - Layla Hammad
- Department of Biology, College of Science, University of Bahrain, 32038 Sakhir, Bahrain.
| | - Antonella Riva
- Research and Development Department, Indena SpA, 20139 Milan, Italy.
| | | | - Pietro Allegrini
- Research and Development Department, Indena SpA, 20139 Milan, Italy.
| | - Mariangela Rondanelli
- IRCCS Mondino Foundation, Pavia 27100, Italy.
- Department of Public Health, Experimental and Forensic Medicine, Unit of Human and Clinical Nutrition, University of Pavia, Pavia 27100, Italy.
| |
Collapse
|
31
|
Delompré T, Guichard E, Briand L, Salles C. Taste Perception of Nutrients Found in Nutritional Supplements: A Review. Nutrients 2019; 11:nu11092050. [PMID: 31480669 PMCID: PMC6770818 DOI: 10.3390/nu11092050] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/21/2019] [Accepted: 08/28/2019] [Indexed: 12/18/2022] Open
Abstract
Nutritional supplements are prescribed when one’s nutritional status is not conducive to good health. These foodstuffs constitute concentrated sources of nutrients such as vitamins, minerals, amino acids, and fatty acids. For nutritional supplements to be effective, patients must consume the amount that has been prescribed for the recommended period of time. Therefore, special attention must be given to the sensory attributes of these products. Indeed, the presence of active compounds can cause an off-taste or aftertaste. These negative sensations can lead to a reduction in the consumption of nutritional supplements and reduce the effectiveness of the treatment. In this manuscript, we provide an overview of the sensory characteristics and the sensing receptor mechanism of the main compounds present in oral nutritional supplements, such as amino acids, minerals, fatty acids, and vitamins. Part of this article is devoted to the development of new masking strategies and the corresponding potential influence at the industrial level.
Collapse
Affiliation(s)
- Thomas Delompré
- CSGA (Centre des Sciences du Goût et de l'Alimentation), AgroSup Dijon, CNRS, INRA, Université de Bourgogne-Franche Comté, 21000 Dijon, France
| | - Elisabeth Guichard
- CSGA (Centre des Sciences du Goût et de l'Alimentation), AgroSup Dijon, CNRS, INRA, Université de Bourgogne-Franche Comté, 21000 Dijon, France
| | - Loïc Briand
- CSGA (Centre des Sciences du Goût et de l'Alimentation), AgroSup Dijon, CNRS, INRA, Université de Bourgogne-Franche Comté, 21000 Dijon, France.
| | - Christian Salles
- CSGA (Centre des Sciences du Goût et de l'Alimentation), AgroSup Dijon, CNRS, INRA, Université de Bourgogne-Franche Comté, 21000 Dijon, France.
| |
Collapse
|
32
|
Kersten E, Dammeier S, Ajana S, Groenewoud JMM, Codrea M, Klose F, Lechanteur YT, Fauser S, Ueffing M, Delcourt C, Hoyng CB, de Jong EK, den Hollander AI. Metabolomics in serum of patients with non-advanced age-related macular degeneration reveals aberrations in the glutamine pathway. PLoS One 2019; 14:e0218457. [PMID: 31220133 PMCID: PMC6586309 DOI: 10.1371/journal.pone.0218457] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 06/03/2019] [Indexed: 12/20/2022] Open
Abstract
Age-related macular degeneration (AMD) is a common, progressive multifactorial vision-threatening disease and many genetic and environmental risk factors have been identified. The risk of AMD is influenced by lifestyle and diet, which may be reflected by an altered metabolic profile. Therefore, measurements of metabolites could identify biomarkers for AMD, and could aid in identifying high-risk individuals. Hypothesis-free technologies such as metabolomics have a great potential to uncover biomarkers or pathways that contribute to disease pathophysiology. To date, only a limited number of metabolomic studies have been performed in AMD. Here, we aim to contribute to the discovery of novel biomarkers and metabolic pathways for AMD using a targeted metabolomics approach of 188 metabolites. This study focuses on non-advanced AMD, since there is a need for biomarkers for the early stages of disease before severe visual loss has occurred. Targeted metabolomics was performed in 72 patients with early or intermediate AMD and 72 control individuals, and metabolites predictive for AMD were identified by a sparse partial least squares discriminant analysis. In our cohort, we identified four metabolite variables that were most predictive for early and intermediate stages of AMD. Increased glutamine and phosphatidylcholine diacyl C28:1 levels were detected in non-advanced AMD cases compared to controls, while the rate of glutaminolysis and the glutamine to glutamate ratio were reduced in non-advanced AMD. The association of glutamine with non-advanced AMD corroborates a recent report demonstrating an elevated glutamine level in early AMD using a different metabolomics technique. In conclusion, this study indicates that metabolomics is a suitable method for the discovery of biomarker candidates for AMD. In the future, larger metabolomics studies could add to the discovery of novel biomarkers in yet unknown AMD pathways and expand our insights in AMD pathophysiology.
Collapse
Affiliation(s)
- Eveline Kersten
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Sascha Dammeier
- Institute for Ophthalmic Research, Core Facility for Medical Bioanalytics, University of Tübingen, Tübingen, Germany
| | - Soufiane Ajana
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, LEHA team, UMR 1219, Bordeaux, France
| | - Joannes M. M. Groenewoud
- Department of Epidemiology, Biostatistics, and Health Technology Assessment, Radboud university medical center, Nijmegen, the Netherlands
| | - Marius Codrea
- Quantitative Biology Center, University of Tübingen, Tübingen, Germany
| | - Franziska Klose
- Institute for Ophthalmic Research, Core Facility for Medical Bioanalytics, University of Tübingen, Tübingen, Germany
| | - Yara T. Lechanteur
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Sascha Fauser
- F. Hoffmann - La Roche AG, Basel, Switzerland
- Department of Ophthalmology, University Hospital of Cologne, Cologne, Germany
| | - Marius Ueffing
- Institute for Ophthalmic Research, Core Facility for Medical Bioanalytics, University of Tübingen, Tübingen, Germany
| | - Cécile Delcourt
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, LEHA team, UMR 1219, Bordeaux, France
| | - Carel B. Hoyng
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Eiko K. de Jong
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Anneke I. den Hollander
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | | |
Collapse
|
33
|
Shariatpanahi ZV, Eslamian G, Ardehali SH, Baghestani AR. Effects of Early Enteral Glutamine Supplementation on Intestinal Permeability in Critically Ill Patients. Indian J Crit Care Med 2019; 23:356-362. [PMID: 31485104 PMCID: PMC6709840 DOI: 10.5005/jp-journals-10071-23218] [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] [Indexed: 12/21/2022] Open
Abstract
Background and aims Enteral administration of glutamine has been proposed as an effective recovery of intestinal barrier function. This amino acid has a modulating effect on the reducing bacterial translocation, which can influence immune functions of the intestine. The objective was to evaluate the effects of early enteral glutamine supplementation on intestinal permeability in critically ill patients. Materials and methods A total of 80 critically ill patients older than 18 years were randomly assigned to one of two groups according to the stratified blocked randomization by age and admission category. Consecutive participants took enteral formula plus 0.3 g/kg/day glutamine powder or enteral formula plus maltodextrin during the ICU stay for a maximum of 10 days. Plasma glutamine, endotoxin, zonulin, and antiendotoxin immunoglobulin (Ig)G/IgM concentrations were measured on days 5 and 10 of intervention. Results Out of 80 participants, 36 patients in the glutamine group and 34 patients in the control group were included in the analysis of the outcomes. Enteral glutamine significantly reduced plasma zonulin concentration up to 40% during 10 days. This reduction was significantly greater compared with that of the placebo group (p<0.001). Endotoxin concentration decreased in both groups; this reduction was significantly greater in the glutamine group (p = 0.014). The antiendotoxin IgM and IgG antibody levels increased in the glutamine group but decreased in the control group (p <0.001). There were no significant differences in clinical outcomes between two groups. Conclusion Early enteral glutamine supplementation led to a declined intestinal permeability in critically ill patients. How to cite this article Shariatpanahi ZV, Eslamian G, Ardehali SH, Baghestani AR. Effects of Early Enteral Glutamine Supplementation on Intestinal Permeability in Critically Ill Patients. Indian J Crit Care Med 2019;23(8):356-362.
Collapse
Affiliation(s)
- Zahra Vahdat Shariatpanahi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ghazaleh Eslamian
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Hossein Ardehali
- Department of Anesthesiology and Critical Care, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad-Reza Baghestani
- Department of Biostatistics, Physiotherapy Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
34
|
Li C, Zhang M, Li M, Zhang Q, Qian Y, Wang R. Effect of dietary alanyl-glutamine dipeptide against chronic ammonia stress induced hyperammonemia in the juvenile yellow catfish (Pelteobagrus fulvidraco). Comp Biochem Physiol C Toxicol Pharmacol 2018; 213:55-61. [PMID: 30107254 DOI: 10.1016/j.cbpc.2018.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/24/2018] [Accepted: 08/09/2018] [Indexed: 12/20/2022]
Abstract
Triplicate groups of juvenile yellow catfish (1.98 ± 0.01 g) were fed diets supplemented with 0% and 1% alanyl-glutamine dipeptide (AGD) for 56 days under three ammonia concentrations (0.01, 5.70 and 11.40 mg L-1 total ammonia nitrogen). The results showed that ammonia poisoning could induce growth (weight gain and specific growth rate) and survival reduction, live ammonia and serum malondialdehyde accumulation, and subsequently lead to blood deterioration (serum total protein, albumin, globulin, alkaline phosphatase and acid phosphatase reduced), oxidative stress (superoxide dismutase and glutathione peroxidase activities declined), and induce down-regulation of antioxidant enzymes (SOD, GPX and GRX) genes transcription. However, dietary supplemented with 1% AGD could mitigate the adverse effect of ammonia poisoning on fish growth performance.
Collapse
Affiliation(s)
- Congqi Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Muzi Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Ming Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, China.
| | - Qian Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Yunxia Qian
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Rixin Wang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| |
Collapse
|
35
|
Basit F, Mathan T, Sancho D, de Vries IJM. Human Dendritic Cell Subsets Undergo Distinct Metabolic Reprogramming for Immune Response. Front Immunol 2018; 9:2489. [PMID: 30455688 PMCID: PMC6230993 DOI: 10.3389/fimmu.2018.02489] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 10/09/2018] [Indexed: 12/31/2022] Open
Abstract
Toll-like receptor (TLR) agonists induce metabolic reprogramming, which is required for immune activation. We have investigated mechanisms that regulate metabolic adaptation upon TLR-stimulation in human blood DC subsets, CD1c+ myeloid DCs (mDCs) and plasmacytoid DCs (pDCs). We show that TLR-stimulation changes expression of genes regulating oxidative phosphorylation (OXPHOS) and glutamine metabolism in pDC. TLR-stimulation increases mitochondrial content and intracellular glutamine in an autophagy-dependent manner in pDC. TLR-induced glutaminolysis fuels OXPHOS in pDCs. Notably, inhibition of glutaminolysis and OXPHOS prevents pDC activation. Conversely, TLR-stimulation reduces mitochondrial content, OXPHOS activity and induces glycolysis in CD1c+ mDC. Inhibition of mitochondrial fragmentation or promotion of mitochondrial fusion impairs TLR-stimulation induced glycolysis and activation of CD1c+ mDCs. TLR-stimulation triggers BNIP3-dependent mitophagy, which regulates transcriptional activity of AMPKα1. BNIP3-dependent mitophagy is required for induction of glycolysis and activation of CD1c+ mDCs. Our findings reveal that TLR stimulation differentially regulates mitochondrial dynamics in distinct human DC subsets, which contributes to their activation.
Collapse
Affiliation(s)
- Farhan Basit
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Till Mathan
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - David Sancho
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain
| | - I Jolanda M de Vries
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands.,Department of Medical Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| |
Collapse
|
36
|
Cruzat V, Macedo Rogero M, Noel Keane K, Curi R, Newsholme P. Glutamine: Metabolism and Immune Function, Supplementation and Clinical Translation. Nutrients 2018; 10:nu10111564. [PMID: 30360490 PMCID: PMC6266414 DOI: 10.3390/nu10111564] [Citation(s) in RCA: 544] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/13/2018] [Accepted: 10/16/2018] [Indexed: 02/07/2023] Open
Abstract
Glutamine is the most abundant and versatile amino acid in the body. In health and disease, the rate of glutamine consumption by immune cells is similar or greater than glucose. For instance, in vitro and in vivo studies have determined that glutamine is an essential nutrient for lymphocyte proliferation and cytokine production, macrophage phagocytic plus secretory activities, and neutrophil bacterial killing. Glutamine release to the circulation and availability is mainly controlled by key metabolic organs, such as the gut, liver, and skeletal muscles. During catabolic/hypercatabolic situations glutamine can become essential for metabolic function, but its availability may be compromised due to the impairment of homeostasis in the inter-tissue metabolism of amino acids. For this reason, glutamine is currently part of clinical nutrition supplementation protocols and/or recommended for immune suppressed individuals. However, in a wide range of catabolic/hypercatabolic situations (e.g., ill/critically ill, post-trauma, sepsis, exhausted athletes), it is currently difficult to determine whether glutamine supplementation (oral/enteral or parenteral) should be recommended based on the amino acid plasma/bloodstream concentration (also known as glutaminemia). Although the beneficial immune-based effects of glutamine supplementation are already established, many questions and evidence for positive in vivo outcomes still remain to be presented. Therefore, this paper provides an integrated review of how glutamine metabolism in key organs is important to cells of the immune system. We also discuss glutamine metabolism and action, and important issues related to the effects of glutamine supplementation in catabolic situations.
Collapse
Affiliation(s)
- Vinicius Cruzat
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences, Curtin University, Perth 6102, Australia.
- Faculty of Health, Torrens University, Melbourne 3065, Australia.
| | - Marcelo Macedo Rogero
- Department of Nutrition, Faculty of Public Health, University of São Paulo, Avenida Doutor Arnaldo 715, São Paulo 01246-904, Brazil.
| | - Kevin Noel Keane
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences, Curtin University, Perth 6102, Australia.
| | - Rui Curi
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo 01506-000, Brazil.
| | - Philip Newsholme
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences, Curtin University, Perth 6102, Australia.
| |
Collapse
|
37
|
Cruzat V, Macedo Rogero M, Noel Keane K, Curi R, Newsholme P. Glutamine: Metabolism and Immune Function, Supplementation and Clinical Translation. Nutrients 2018. [PMID: 30360490 DOI: 10.20944/preprints201809.0459.v1] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Glutamine is the most abundant and versatile amino acid in the body. In health and disease, the rate of glutamine consumption by immune cells is similar or greater than glucose. For instance, in vitro and in vivo studies have determined that glutamine is an essential nutrient for lymphocyte proliferation and cytokine production, macrophage phagocytic plus secretory activities, and neutrophil bacterial killing. Glutamine release to the circulation and availability is mainly controlled by key metabolic organs, such as the gut, liver, and skeletal muscles. During catabolic/hypercatabolic situations glutamine can become essential for metabolic function, but its availability may be compromised due to the impairment of homeostasis in the inter-tissue metabolism of amino acids. For this reason, glutamine is currently part of clinical nutrition supplementation protocols and/or recommended for immune suppressed individuals. However, in a wide range of catabolic/hypercatabolic situations (e.g., ill/critically ill, post-trauma, sepsis, exhausted athletes), it is currently difficult to determine whether glutamine supplementation (oral/enteral or parenteral) should be recommended based on the amino acid plasma/bloodstream concentration (also known as glutaminemia). Although the beneficial immune-based effects of glutamine supplementation are already established, many questions and evidence for positive in vivo outcomes still remain to be presented. Therefore, this paper provides an integrated review of how glutamine metabolism in key organs is important to cells of the immune system. We also discuss glutamine metabolism and action, and important issues related to the effects of glutamine supplementation in catabolic situations.
Collapse
Affiliation(s)
- Vinicius Cruzat
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences, Curtin University, Perth 6102, Australia. .,Faculty of Health, Torrens University, Melbourne 3065, Australia.
| | - Marcelo Macedo Rogero
- Department of Nutrition, Faculty of Public Health, University of São Paulo, Avenida Doutor Arnaldo 715, São Paulo 01246-904, Brazil.
| | - Kevin Noel Keane
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences, Curtin University, Perth 6102, Australia.
| | - Rui Curi
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo 01506-000, Brazil.
| | - Philip Newsholme
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences, Curtin University, Perth 6102, Australia.
| |
Collapse
|
38
|
Zhang S, Carriere J, Lin X, Xie N, Feng P. Interplay between Cellular Metabolism and Cytokine Responses during Viral Infection. Viruses 2018; 10:v10100521. [PMID: 30249998 PMCID: PMC6213852 DOI: 10.3390/v10100521] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/20/2018] [Accepted: 09/21/2018] [Indexed: 02/06/2023] Open
Abstract
Metabolism and immune responses are two fundamental biological processes that serve to protect hosts from viral infection. As obligate intracellular pathogens, viruses have evolved diverse strategies to activate metabolism, while inactivating immune responses to achieve maximal reproduction or persistence within their hosts. The two-way virus-host interaction with metabolism and immune responses choreograph cytokine production via reprogramming metabolism of infected cells/hosts. In return, cytokines can affect the metabolism of virus-infected and bystander cells to impede viral replication processes. This review aims to summarize our current understanding of the cross-talk between metabolic reprogramming and cytokine responses, and to highlight future potential research topics. Although the focus is placed on viral pathogens, relevant findings from other microbes are integrated to provide an overall picture, particularly when corresponding information on viral infection is lacking.
Collapse
Affiliation(s)
- Shu Zhang
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Jessica Carriere
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Xiaoxi Lin
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Na Xie
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| | - Pinghui Feng
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089-0641, USA.
| |
Collapse
|
39
|
Abstract
α-Lactalbumin is a whey protein that constitutes approximately 22% of the proteins in human milk and approximately 3.5% of those in bovine milk. Within the mammary gland, α-lactalbumin plays a central role in milk production as part of the lactose synthase complex required for lactose formation, which drives milk volume. It is an important source of bioactive peptides and essential amino acids, including tryptophan, lysine, branched-chain amino acids, and sulfur-containing amino acids, all of which are crucial for infant nutrition. α-Lactalbumin contributes to infant development, and the commercial availability of α-lactalbumin allows infant formulas to be reformulated to have a reduced protein content. Likewise, because of its physical characteristics, which include water solubility and heat stability, α-lactalbumin has the potential to be added to food products as a supplemental protein. It also has potential as a nutritional supplement to support neurological function and sleep in adults, owing to its unique tryptophan content. Other components of α-lactalbumin that may have usefulness in nutritional supplements include the branched-chain amino acid leucine, which promotes protein accretion in skeletal muscle, and bioactive peptides, which possess prebiotic and antibacterial properties. This review describes the characteristics of α-lactalbumin and examines the potential applications of α-lactalbumin for human health.
Collapse
Affiliation(s)
- Donald K Layman
- Department of Food Science and Human Nutrition, University of Illinois at Urban-Champaign, Urbana, Illinois, USA
| | - Bo Lönnerdal
- Department of Nutrition, University of California, Davis, Davis, California, USA
| | - John D Fernstrom
- Department of Psychiatry and the Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| |
Collapse
|
40
|
Dos Santos GG, Hastreiter AA, Sartori T, Borelli P, Fock RA. L-Glutamine in vitro Modulates some Immunomodulatory Properties of Bone Marrow Mesenchymal Stem Cells. Stem Cell Rev Rep 2018; 13:482-490. [PMID: 28593472 DOI: 10.1007/s12015-017-9746-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Glutamine (GLUT) is a nonessential amino acid that can become conditionally essential under stress conditions, being able to act in the modulation of the immune responses. Mesenchymal stem cells (MSCs) are known to their capability in the modulation of immune responses through cell-cell contact and by the secretion of soluble factors. Considering that GLUT is an immunonutrient and little is known about the influence of GLUT on the capability of MSCs to modulate immune cells, this work aims to investigate how variations in GLUT concentrations in vitro could affect some immunomodulatory properties of MSCs. In order to evaluate the effects of GLUT on MSCs immunomodulatory properties, cell proliferation rates, the expression of NFκB and STAT-3, and the production of IL-1β, IL-6, IL-10, TGF-β and TNF-α by MSCs were assessed. Based on our findings, GLUT at high doses (10 mM) augmented the proliferation of MSCs and modulated immune responses by decreasing levels of pro-inflammatory cytokines, such as IL-1β and IL-6, and by increasing levels of anti-inflammatory cytokines IL-10 and TGF-β. In addition, MSCs cultured in higher GLUT concentrations (10 mM) expressed lower levels of NF-κB and higher levels of STAT-3. Furthermore, conditioned media from MSCs cultured at higher GLUT concentrations (10 mM) reduced lymphocyte and macrophage proliferation, increased IL-10 production by both cells types, and decreased IFN-γ production by lymphocytes. Overall, this study showed that 10 mM of GLUT is able to modify immunomodulatory properties of MSCs.
Collapse
Affiliation(s)
- Guilherme Galvão Dos Santos
- Laboratory of Experimental Hematology, Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Avenida Lineu Prestes, 580 - Bloco 17., São Paulo, SP, 05508-900, Brazil
| | - Araceli Aparecida Hastreiter
- Laboratory of Experimental Hematology, Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Avenida Lineu Prestes, 580 - Bloco 17., São Paulo, SP, 05508-900, Brazil
| | - Talita Sartori
- Laboratory of Experimental Hematology, Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Avenida Lineu Prestes, 580 - Bloco 17., São Paulo, SP, 05508-900, Brazil
| | - Primavera Borelli
- Laboratory of Experimental Hematology, Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Avenida Lineu Prestes, 580 - Bloco 17., São Paulo, SP, 05508-900, Brazil
| | - Ricardo Ambrósio Fock
- Laboratory of Experimental Hematology, Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Avenida Lineu Prestes, 580 - Bloco 17., São Paulo, SP, 05508-900, Brazil.
| |
Collapse
|
41
|
Hachimura S, Totsuka M, Hosono A. Immunomodulation by food: impact on gut immunity and immune cell function. Biosci Biotechnol Biochem 2018; 82:584-599. [PMID: 29448897 DOI: 10.1080/09168451.2018.1433017] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Recent studies have revealed that various food components affect the immune response. These components act on various immune cells, and their effects are mediated through the intestinal immune system and, in some cases, the intestinal microbiota. In this review, we describe the immunomodulating effects of various food components, including probiotics, prebiotics, polysaccharides, vitamins, minerals, fatty acids, peptides, amino acids and polyphenols. Some of these components enhance immune responses, leading to host defense against infection, whereas others inhibit immune responses, thus suppressing allergy and inflammation.
Collapse
Affiliation(s)
- Satoshi Hachimura
- a Research Center for Food Safety, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Japan
| | - Mamoru Totsuka
- b Department of Food Science and Technology, Faculty of Applied Life Science , Nippon Veterinary and Life Science University , Japan
| | - Akira Hosono
- c Department of Food Bioscience and Biotechnology, College of Bioresource Sciences , Nihon University , Japan
| |
Collapse
|
42
|
Dai M, Wang F, Zou Z, Xiao G, Chen H, Yang H. Metabolic regulations of a decoction of Hedyotis diffusa in acute liver injury of mouse models. Chin Med 2017; 12:35. [PMID: 29296119 PMCID: PMC5738817 DOI: 10.1186/s13020-017-0159-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 12/14/2017] [Indexed: 01/22/2023] Open
Abstract
Background Dysfunctional metabolisms are contributed to LPS/GALN-induced hepatitis. However, whether Hedyotis diffusa (HD) employs metabolic strategies against hepatitis is unknown. Methods We use the cytokines expression, levels of serum alanine transaminase and aspartate transaminase, survival and histological analysis to measure the effect of decoction of HD on acute severe hepatitis of mouse induced by LPS/GALN. Meanwhile, we utilize GC/MS-based metabolomics to characterize the variation of metabolomes. Results The present study shows the relieving liver damage in HD decoction-treated mice. Metabolic category using differential metabolites indicates the lower percentage of carbohydrates in LPS/GALN + HD group than LPS/GALN group, revealing the value of carbohydrate metabolism in HD decoction-administrated mouse liver. Further pathway enrichment analysis proposes that citrate cycle, galactose metabolism, and starch and sucrose metabolism are three important carbohydrate metabolisms that involve in the protective effect of decoction of HD during acute hepatitis. Furthermore, other important enrichment pathways are biosynthesis of unsaturated fatty acids, alanine, aspartate and glutamate metabolism, and arginine and proline metabolism. Fatty acids or amino acids involved in above-mentioned pathways are also detected in high loading distribution on IC01 and IC02, thereby manifesting the significance of these metabolites. Other key metabolites detect in ICA analysis were cholesterol, lactic acid and tryptophan. Conclusions The variation tendency of above-mentioned metabolites is totally consistent with the protective nature of decoction of HD. These findings give a viewpoint that HD decoction-effected metabolic strategies are linked to underlying mechanisms of decoction of HD and highlight the importance of metabolic mechanisms against hepatitis. Electronic supplementary material The online version of this article (10.1186/s13020-017-0159-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Min Dai
- Traditional Chinese Medicine Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| | - Fenglin Wang
- Traditional Chinese Medicine Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| | - Zengcheng Zou
- Traditional Chinese Medicine Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| | - Gemin Xiao
- Traditional Chinese Medicine Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| | - Hongjie Chen
- Traditional Chinese Medicine Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| | - Hongzhi Yang
- Traditional Chinese Medicine Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| |
Collapse
|
43
|
Zabot GP, Carvalhal GF, Marroni NP, Licks F, Hartmann RM, da Silva VD, Fillmann HS. Glutamine prevents oxidative stress in a model of portal hypertension. World J Gastroenterol 2017; 23:4529-4537. [PMID: 28740341 PMCID: PMC5504368 DOI: 10.3748/wjg.v23.i25.4529] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/03/2017] [Accepted: 06/12/2017] [Indexed: 02/07/2023] Open
Abstract
AIM To evaluate the protective effects of glutamine in a model of portal hypertension (PH) induced by partial portal vein ligation (PPVL).
METHODS Male Wistar rats were housed in a controlled environment and were allowed access to food and water ad libitum. Twenty-four male Wistar rats were divided into four experimental groups: (1) control group (SO) - rats underwent exploratory laparotomy; (2) control + glutamine group (SO + G) - rats were subjected to laparotomy and were treated intraperitoneally with glutamine; (3) portal hypertension group (PPVL) - rats were subjected to PPVL; and (4) PPVL + glutamine group (PPVL + G) - rats were treated intraperitoneally with glutamine for seven days. Local injuries were determined by evaluating intestinal segments for oxidative stress using lipid peroxidation and the activities of glutathione peroxidase (GPx), endothelial nitric oxide synthase (eNOS) and inducible nitric oxide synthase (iNOS) after PPVL.
RESULTS Lipid peroxidation of the membrane was increased in the animals subjected to PH (P < 0.01). However, the group that received glutamine for seven days after the PPVL procedure showed levels of lipid peroxidation similar to those of the control groups (P > 0.05). The activity of the antioxidant enzyme GTx was decreased in the gut of animals subjected to PH compared with that in the control group of animals not subjected to PH (P < 0.01). However, the group that received glutamine for seven days after the PPVL showed similar GTx activity to both the control groups not subjected to PH (P > 0.05). At least 10 random, non-overlapping images of each histological slide with 200 × magnification (44 pixel = 1 μm) were captured. The sum means of all areas, of each group were calculated. The mean areas of eNOS staining for both of the control groups were similar. The PPVL group showed the largest area of staining for eNOS. The PPVL + G group had the second highest amount of staining, but the mean value was much lower than that of the PPVL group (P < 0.01). For iNOS, the control (SO) and control + G (SO + G) groups showed similar areas of staining. The PPVL group contained the largest area of iNOS staining, followed by the PPVL + G group; however, this area was significantly smaller than that of the group that underwent PH without glutamine (P < 0.01).
CONCLUSION Treatment with glutamine prevents gut mucosal injury after PH in rats.
Collapse
|
44
|
Filho HM, Betros C, Gordon M, Manso H, Watford M, McKeever K. Exercise training, Glut-4 protein abundance and glutamine in skeletal muscle of mature and very old horses. COMPARATIVE EXERCISE PHYSIOLOGY 2017. [DOI: 10.3920/cep170003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Two groups of unfit Standardbred mares (adult: 9-14 years, 540 kg, n=7) and old (20-25 years, 530 kg, n=5) were used to test two hypotheses, first, that aging and training would alter plasma and muscle glutamine [Gln] and glutamate [Glu] and second, that aging and training would alter Glut-4 expression in skeletal muscle. All animals were housed on pasture with free access to grass and all received hay and supplementation with a commercially prepared supplement (15% crude protein and 3.00 Mcal/kg dry matter) in individual stalls. Mares were fed to meet or exceed NRC (2007) nutrient recommendations for moderate to heavy exercise. The mares were exercise trained in a free-stall motorised circular exercise machine for 30 min/d, 5 d/week, for 8 weeks. Work intensity during training was set at a relative intensity of ~60% of the maximum heart rate, previously determined during an incremental exercise test (GXT). Blood samples and muscle biopsies (gluteus) obtained before and after 8 weeks of training were used for measurement of [Gln], [Glu] and Glut-4 abundance. Samples were collected before the initiation of training and at 24 h after cessation of last bout of exercise in the training period. All samples were immediately frozen in liquid nitrogen and stored at -80 °C until enzymatic analysis for [Gln], [Glu] and Western Blot analysis for Glut-4 protein abundance. Data were analysed by one-way or two-way ANOVA for repeated measures and the Pearson correlation method. Post-hoc differences were identified with the Tukey test. Significance was set at P<0.05. There were no differences (P>0.05) in muscle [Glu] due to aging. Training decreased (P<0.05) muscle [Glu] from 7,561±701 nmol/g of tissue (mean ± standard error) in pre-training samples to 4,491±701 nmol/g of tissue post-training. Plasma [Gln] decreased (P<0.05) with training (368±14 nmol/ml vs 317±14 nmol/ml). There was a trend (P=0.063) towards an effect of aging. There were significant interactions between age and training for plasma [Gln]. Old mares had lower (P<0.05) post-exercise plasma [Gln] (224±21 nmol/ml) when compared with pre-exercise plasma [Gln] (372±21 nmol/ml). Post-training, plasma [Gln] was lower (P<0.05) in the old mares compared to adult mares [Gln] (224±21 nmol/ml vs 410±18 nmol/ml). There was an effect (P<0.05) of age on muscle [Gln] (old = 6,126 ±870 nmol/g of tissue; adult = 3,176±735 nmol/g of tissue); however, there were no changes (P>0.05) due to training. Glut-4 abundance analysis did not differ (P>0.05) between the young adult and old horses; however, there was a trend (P=0.063) towards an effect of training when samples from both groups were pooled. It was concluded that training and aging produce changes in plasma and muscle [Gln], which may affect immune function in athletic horses, but not in Glut-4.
Collapse
Affiliation(s)
- H.C. Manso Filho
- Equine Science Center, Department of Animal Sciences, Rutgers the State University, 84 Lipman Drive, New Brunswick, NJ 08901, USA
- Department of Animal Sciences, Federal Rural University of Pernambuco, Rua Manuel de Medeiros s/n, 52171-900 Recife, PE, Brazil
| | - C.L. Betros
- Equine Science Center, Department of Animal Sciences, Rutgers the State University, 84 Lipman Drive, New Brunswick, NJ 08901, USA
| | - M.E. Gordon
- Equine Science Center, Department of Animal Sciences, Rutgers the State University, 84 Lipman Drive, New Brunswick, NJ 08901, USA
| | - H.E.C.C.C. Manso
- Department of Animal Sciences, Federal Rural University of Pernambuco, Rua Manuel de Medeiros s/n, 52171-900 Recife, PE, Brazil
- Department of Nutritional Sciences, Rutgers University, 65 Dudley Rd., New Brunswick, NJ 08901, USA
| | - M. Watford
- Department of Nutritional Sciences, Rutgers University, 65 Dudley Rd., New Brunswick, NJ 08901, USA
| | - K.H. McKeever
- Equine Science Center, Department of Animal Sciences, Rutgers the State University, 84 Lipman Drive, New Brunswick, NJ 08901, USA
| |
Collapse
|
45
|
|
46
|
Effect of Human Burn Wound Exudate on Pseudomonas aeruginosa Virulence. mSphere 2016; 1:mSphere00111-15. [PMID: 27303724 PMCID: PMC4894682 DOI: 10.1128/msphere.00111-15] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 04/03/2016] [Indexed: 11/20/2022] Open
Abstract
Burn wound sepsis is currently the main cause of morbidity and mortality after burn trauma. Infections by notorious pathogens such as Pseudomonas aeruginosa, Staphylococcus aureus, and Acinetobacter baumannii impair patient recovery and can even lead to fatality. In this study, we investigated the effect of burn wound exudates (BWEs) on the virulence of those pathogens. BWEs were collected within 7 days after burn trauma from 5 burn patients. We first monitored their effect on pathogen growth. In contrast to A. baumannii and S. aureus, P. aeruginosa was the only pathogen able to grow within these human fluids. Expression of typical virulence factors such as pyocyanin and pyoverdine was even enhanced compared the levels seen with standard laboratory medium. A detailed chemical composition analysis of BWE was performed, which enabled us to determine the major components of BWE and underline the metabolic modifications induced by burn trauma. These data are essential for the development of an artificial medium mimicking the burn wound environment and the establishment of an in vitro system to analyze the initial steps of burn wound infections. IMPORTANCE Microbial infection of severe burn wounds is currently a major medical challenge. Of the infections by bacteria able to colonize such injuries, those by Pseudomonas aeruginosa are among the most severe, causing major delays in burn patient recovery or leading to fatal issues. In this study, we investigated the growth properties of several burn wound pathogens in biological fluids secreted from human burn wounds. We found that P. aeruginosa strains were able to proliferate but not those of the other pathogens tested. In addition, burn wound exudates (BWEs) stimulate the expression of virulence factors in P. aeruginosa. The chemical composition analysis of BWEs enabled us to determine the major components of these fluids. These data are essential for the development of an artificial medium mimicking the burn wound environment and for in vitro analysis of the initial step in the development of burn wound infections.
Collapse
|
47
|
Girven M, Dugdale HF, Owens DJ, Hughes DC, Stewart CE, Sharples AP. l-glutamine Improves Skeletal Muscle Cell Differentiation and Prevents Myotube Atrophy After Cytokine (TNF-α) Stress Via Reduced p38 MAPK Signal Transduction. J Cell Physiol 2016; 231:2720-32. [PMID: 26991744 DOI: 10.1002/jcp.25380] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 03/15/2016] [Indexed: 02/06/2023]
Abstract
Tumour Necrosis Factor-Alpha (TNF-α) is chronically elevated in conditions where skeletal muscle loss occurs. As l-glutamine can dampen the effects of inflamed environments, we investigated the role of l-glutamine in both differentiating C2C12 myoblasts and existing myotubes in the absence/presence of TNF-α (20 ng · ml(-1) ) ± l-glutamine (20 mM). TNF-α reduced the proportion of cells in G1 phase, as well as biochemical (CK activity) and morphological differentiation (myotube number), with corresponding reductions in transcript expression of: Myogenin, Igf-I, and Igfbp5. Furthermore, when administered to mature myotubes, TNF-α induced myotube loss and atrophy underpinned by reductions in Myogenin, Igf-I, Igfbp2, and glutamine synthetase and parallel increases in Fox03, Cfos, p53, and Bid gene expression. Investigation of signaling activity suggested that Akt and ERK1/2 were unchanged, JNK increased (non-significantly) whereas P38 MAPK substantially and significantly increased in both myoblasts and myotubes in the presence of TNF-α. Importantly, 20 mM l-glutamine reduced p38 MAPK activity in TNF-α conditions back to control levels, with a corresponding rescue of myoblast differentiation and a reversal of atrophy in myotubes. l-glutamine resulted in upregulation of genes associated with growth and survival including; Myogenin, Igf-Ir, Myhc2 & 7, Tnfsfr1b, Adra1d, and restored atrophic gene expression of Fox03 back to baseline in TNF-α conditions. In conclusion, l-glutamine supplementation rescued suppressed muscle cell differentiation and prevented myotube atrophy in an inflamed environment via regulation of p38 MAPK. l-glutamine administration could represent an important therapeutic strategy for reducing muscle loss in catabolic diseases and inflamed ageing. J. Cell. Physiol. 9999: 231: 2720-2732, 2016. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Matthew Girven
- Stem Cells, Ageing and Molecular Physiology Research Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom
| | - Hannah F Dugdale
- Stem Cells, Ageing and Molecular Physiology Research Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom
| | - Daniel J Owens
- Stem Cells, Ageing and Molecular Physiology Research Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom.,Sorbonne Universités, UPMC University of Paris 06, INSERM UMRS974, CNRS FRE3617, Centre de Recherche en Myologie (CRM), GH Pitié Salpêtrière, Paris 13, France
| | - David C Hughes
- Stem Cells, Ageing and Molecular Physiology Research Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom.,Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, California
| | - Claire E Stewart
- Stem Cells, Ageing and Molecular Physiology Research Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom
| | - Adam P Sharples
- Stem Cells, Ageing and Molecular Physiology Research Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom
| |
Collapse
|
48
|
Hapeshi A, Waterfield NR. Photorhabdus asymbiotica as an Insect and Human Pathogen. Curr Top Microbiol Immunol 2016; 402:159-177. [PMID: 27726002 DOI: 10.1007/82_2016_29] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Photorhabdus asymbiotica is a species of bacterium that is pathogenic to humans whilst retaining the ability to infect insect hosts. Currently, there are two recognised subspecies, P. asymbiotica subsp. asymbiotica and P. asymbiotica subsp. australis with strains isolated from various locations in the USA, Australia, Thailand, Nepal and Europe. Like other species of Photorhabdus, P. asymbiotica subsp. australis was shown to form a symbiotic relationship with a Heterorhabditis nematode. In contrast to most strains of Photorhabdus luminescens, P. asymbiotica can grow at 37 °C and this is a defining factor in its ability to cause human disease. Insights into other adaptations it has undergone that have enabled host switching to occur have come from whole genome sequencing and transcriptomic studies. P. asymbiotica has a smaller genome compared to P. luminenscens with a lower diversity of insecticidal toxins. However, it has acquired plasmids and several pathogenicity islands in its genome. These encode genes with similarity to effectors or systems found in other known human pathogens such as Salmonella and Yersinia and are therefore likely to contribute to human pathogenicity. Of crucial importance to virulence is the fact that P. asymbiotica undergoes a large metabolic shift at the human host temperature.
Collapse
Affiliation(s)
- Alexia Hapeshi
- Warwick Medical School, University of Warwick, Coventry, UK
| | | |
Collapse
|
49
|
Effects of dietary α-ketoglutarate supplementation on the growth performance, glutamine synthesis and amino acid concentrations of juvenile hybrid sturgeon Acipenser schrenckii ♀×Acipenser baerii ♂ fed high levels of soy protein concentrate. Anim Feed Sci Technol 2016. [DOI: 10.1016/j.anifeedsci.2015.11.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
50
|
Ren M, Zhang SH, Zeng XF, Liu H, Qiao SY. Branched-chain Amino Acids are Beneficial to Maintain Growth Performance and Intestinal Immune-related Function in Weaned Piglets Fed Protein Restricted Diet. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2015; 28:1742-50. [PMID: 26580442 PMCID: PMC4647083 DOI: 10.5713/ajas.14.0131] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/30/2014] [Accepted: 06/24/2014] [Indexed: 12/29/2022]
Abstract
As a novel approach for disease control and prevention, nutritional modulation of the intestinal health has been proved. However, It is still unknown whether branched-chain amino acid (BCAA) is needed to maintain intestinal immune-related function. The objective of this study was to determine whether BCAA supplementation in protein restricted diet affects growth performance, intestinal barrier function and modulates post-weaning gut disorders. One hundred and eight weaned piglets (7.96±0.26 kg) were randomly fed one of the three diets including a control diet (21% crude protein [CP], CON), a protein restricted diet (17% CP, PR) and a BCAA diet (BCAA supplementation in the PR diet) for 14 d. The growth performance, plasma amino acid concentrations, small intestinal morphology and intestinal immunoglobulins were tested. First, average daily gain (ADG) (p<0.05) and average daily feed intake (ADFI) (p<0.05) of weaned pigs in PR group were lower, while gain:feed ratio was lower than the CON group (p<0.05). Compared with PR group, BCAA group improved ADG (p<0.05), ADFI (p<0.05) and feed:gain ratio (p<0.05) of piglets. The growth performance data between CON and BCAA groups was not different (p>0.05). The PR and BCAA treatments had a higher (p<0.05) plasma concentration of methionine and threonine than the CON treatment. The level of some essential and functional amino acids (such as arginine, phenylalanine, histidine, glutamine etc.) in plasma of the PR group was lower (p<0.05) than that of the CON group. Compared with CON group, BCAA supplementation significantly increased BCAA concentrations (p<0.01) and decreased urea concentration (p<0.01) in pig plasma indicating that the efficiency of dietary nitrogen utilization was increased. Compared with CON group, the small intestine of piglets fed PR diet showed villous atrophy, increasing of intra-epithelial lymphocytes (IELs) number (p<0.05) and declining of the immunoglobulin concentration, including jejunal immunoglobulin A (IgA) (p = 0.04), secreted IgA (sIgA) (p = 0.03) and immunoglobulin M (p = 0.08), and ileal IgA (p = 0.01) and immunoglobulin G (p = 0.08). The BCAA supplementation increased villous height in the duodenum (p<0.01), reversed the trend of an increasing IELs number. Notably, BCAA supplementation increased levels of jejunal and ileal immunoglobulin mentioned above. In conclusion, BCAA supplementation to protein restricted diet improved intestinal immune defense function by protecting villous morphology and by increasing levels of intestinal immunoglobulins in weaned piglets. Our finding has the important implication that BCAA may be used to reduce the negative effects of a protein restricted diet on growth performance and intestinal immunity in weaned piglets.
Collapse
Affiliation(s)
- M Ren
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China ; Animal Science College, Anhui Science and Technology University, Anhui 233100, China
| | - S H Zhang
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China
| | - X F Zeng
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China
| | - H Liu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China
| | - S Y Qiao
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China
| |
Collapse
|