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Badal BD, Fagan A, Tate V, Mousel T, Gallagher ML, Puri P, Davis B, Miller J, Sikaroodi M, Gillevet P, Gedguadas R, Kupcinkas J, Thacker L, Bajaj JS. Substitution of One Meat-Based Meal With Vegetarian and Vegan Alternatives Generates Lower Ammonia and Alters Metabolites in Cirrhosis: A Randomized Clinical Trial. Clin Transl Gastroenterol 2024; 15:e1. [PMID: 38986526 PMCID: PMC11196077 DOI: 10.14309/ctg.0000000000000707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/22/2024] [Indexed: 05/04/2024] Open
Abstract
INTRODUCTION Diet can affect ammoniagenesis in cirrhosis and hepatic encephalopathy (HE), but the impact of dietary preferences on metabolomics in cirrhosis is unclear. As most Western populations follow meat-based diets, we aimed to determine the impact of substituting a single meat-based meal with an equal protein-containing vegan/vegetarian alternative on ammonia and metabolomics in outpatients with cirrhosis on a meat-based diet. METHODS Outpatients with cirrhosis with and without prior HE on a stable Western meat-based diet were randomized 1:1:1 into 3 groups. Patients were given a burger with 20 g protein of meat, vegan, or vegetarian. Blood for metabolomics via liquid chromatography-mass spectrometry and ammonia was drawn at baseline and hourly for 3 hours after meal while patients under observation. Stool microbiome characteristics, changes in ammonia, and metabolomics were compared between/within groups. RESULTS Stool microbiome composition was similar at baseline. Serum ammonia increased from baseline in the meat group but not the vegetarian or vegan group. Metabolites of branched chain and acylcarnitines decreased in the meat group compared with the non-meat groups. Alterations in lipid profile (higher sphingomyelins and lower lysophospholipids) were noted in the meat group when compared with the vegan and vegetarian groups. DISCUSSION Substitution of a single meat-based meal with a non-meat alternatives results in lower ammoniagenesis and altered serum metabolomics centered on branched-chain amino acids, acylcarnitines, lysophospholipids, and sphingomyelins in patients with cirrhosis regardless of HE or stool microbiome. Intermittent meat substitution with vegan or vegetarian alternatives could be helpful in reducing ammonia generation in cirrhosis.
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Affiliation(s)
- Bryan D. Badal
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Andrew Fagan
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Victoria Tate
- Department of Dietetics, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Travis Mousel
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Mary Leslie Gallagher
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Puneet Puri
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Brian Davis
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Jennifer Miller
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
| | - Masoumeh Sikaroodi
- Microbiome Analysis Center, George Mason University, Fairfax, Virginia, USA
| | - Patrick Gillevet
- Microbiome Analysis Center, George Mason University, Fairfax, Virginia, USA
| | - Rolandas Gedguadas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Juozas Kupcinkas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Leroy Thacker
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Jasmohan S. Bajaj
- Division of Gastroenterology, Hepatology and Nutrition, Richmond VA Medical Center, Richmond, Virginia, USA
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, Virginia, USA
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Mynster Kronborg T, Webel H, O'Connell MB, Danielsen KV, Hobolth L, Møller S, Jensen RT, Bendtsen F, Hansen T, Rasmussen S, Juel HB, Kimer N. Markers of inflammation predict survival in newly diagnosed cirrhosis: a prospective registry study. Sci Rep 2023; 13:20039. [PMID: 37973887 PMCID: PMC10654496 DOI: 10.1038/s41598-023-47384-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023] Open
Abstract
The inflammatory activity in cirrhosis is often pronounced and related to episodes of decompensation. Systemic markers of inflammation may contain prognostic information, and we investigated their possible correlation with admissions and mortality among patients with newly diagnosed liver cirrhosis. We collected plasma samples from 149 patients with newly diagnosed (within the past 6 months) cirrhosis, and registered deaths and hospital admissions within 180 days. Ninety-two inflammatory markers were quantified and correlated with clinical variables, mortality, and admissions. Prediction models were calculated by logistic regression. We compared the disease courses of our cohort with a validation cohort of 86 patients with cirrhosis. Twenty of 92 markers of inflammation correlated significantly with mortality within 180 days (q-values of 0.00-0.044), whereas we found no significant correlations with liver-related admissions. The logistic regression models yielded AUROCs of 0.73 to 0.79 for mortality and 0.61 to 0.73 for liver-related admissions, based on a variety of modalities (clinical variables, inflammatory markers, clinical scores, or combinations thereof). The models performed moderately well in the validation cohort and were better able to predict mortality than liver-related admissions. In conclusion, markers of inflammation can be used to predict 180-day mortality in patients with newly diagnosed cirrhosis. Prediction models for newly diagnosed cirrhotic patients need further validation before implementation in clinical practice.Trial registration: NCT04422223 (and NCT03443934 for the validation cohort), and Scientific Ethics Committee No.: H-19024348.
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Affiliation(s)
| | - Henry Webel
- Novo Nordisk Foundation Centre for Protein Research, Copenhagen University, Copenhagen, Denmark
| | | | | | - Lise Hobolth
- Gastro Unit, Medical Division, Hvidovre University Hospital, Hvidovre, Denmark
| | - Søren Møller
- Department of Clinical Physiology and Nuclear Medicine, Centre for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Rasmus Tanderup Jensen
- Novo Nordisk Foundation Centre for Metabolic Research, Copenhagen University, Copenhagen, Denmark
| | - Flemming Bendtsen
- Gastro Unit, Medical Division, Hvidovre University Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Torben Hansen
- Novo Nordisk Foundation Centre for Metabolic Research, Copenhagen University, Copenhagen, Denmark
| | - Simon Rasmussen
- Novo Nordisk Foundation Centre for Protein Research, Copenhagen University, Copenhagen, Denmark
- The Novo Nordisk Foundation Centre for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, USA
| | - Helene Bæk Juel
- Novo Nordisk Foundation Centre for Metabolic Research, Copenhagen University, Copenhagen, Denmark
| | - Nina Kimer
- Gastro Unit, Medical Division, Hvidovre University Hospital, Hvidovre, Denmark
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Mehtani R, Premkumar M, Garg S, Kajal K, Kulkarni AV, Duseja AK, Dhiman RK, De A, Verma N, Taneja S, Rathi S, Singh V, Chakma J, Soni SL, Kakkar A, Kapila AT, Ahuja CK, Divyaveer S, Praharaj D. Intravenous BCAA Infusion Does Not Lead to a Sustained Recovery From Overt HE in ACLF - An Open Label Randomized Clinical Trial. J Clin Exp Hepatol 2023; 13:977-988. [PMID: 37975059 PMCID: PMC10643498 DOI: 10.1016/j.jceh.2023.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/28/2023] [Indexed: 11/19/2023] Open
Abstract
Background Hepatic encephalopathy (HE) in acute-on-chronic liver failure (ACLF) is associated with significant morbidity and mortality. We conducted a prospective, randomized controlled clinical trial to study the efficacy of intravenous branched chain amino acids (IV-BCAA) with lactulose versus lactulose alone for improvement in HE at 24 h, day 3, and day 7. The primary outcome was an improvement in encephalopathy by ≥ 1 grade at 72 h. Patients and methods European association for study of liver (EASL) defined ACLF patients with overt HE were assessed and randomized into the experimental arm (IV-BCAA - 500 mL/day for 3 days + Lactulose; n = 39) and the comparator arm (Lactulose alone; n = 37). Six patients developed COVID-19 after randomization and were excluded (4-experimental arm and 2-comparator arm). Results Of 222 screened patients, 70 (35 in each arm) were included in the analysis. Baseline characteristics, including HE grade (2.9 ± 0.7 vs 2.8 ± 0.7; P = 0.86) and (chronic liver failure) CLIF-C ACLF score (54.2 ± 5.6 vs 54.8 ± 5.7; P = 0.65), were similar. Overall survival was 40% at 28 days (48.5% vs 31.4%; P = 0.14). Improvement in hepatic encephalopathy scoring algorithm (HESA) by ≥ 1 grade at 24 h occurred in 14 patients (40%) in the BCAA arm and 6 patients (17.1%) in the control group (P = 0.03) which translated to a shorter intensive care unit (ICU) stay. The median change in HESA at 24 h was greater in the BCAA arm than the control arm (P = 0.006), which was not sustained at days 3 or 7. Ammonia levels did not correlate with the grade of HE (Spearman's correlation coefficient (ρ) = - 0.0843; P = 0.29). Conclusion Intravenous BCAA does not lead to a sustained improvement in HE grade in ACLF. Trial registration no NCT04238416 (clinicaltrials.gov).
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Affiliation(s)
- Rohit Mehtani
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhumita Premkumar
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Shankey Garg
- Department of Anesthesia and Intensive Care, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kamal Kajal
- Department of Anesthesia and Intensive Care, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anand V. Kulkarni
- Department of Hepatology and Liver Transplantation, Asian Institute of Gastroenterology, Hyderabad, Telangana, India
| | - Ajay K. Duseja
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Radha K. Dhiman
- Department of Hepatology, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
| | - Arka De
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Nipun Verma
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunil Taneja
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sahaj Rathi
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Virendra Singh
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Joy Chakma
- Scientist ‘E', Indian Council of Medical Research, New Delhi, India
| | - Shiv L. Soni
- Department of Anesthesia and Intensive Care, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ashish Kakkar
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Aastha T. Kapila
- Department of Neurology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Chirag K. Ahuja
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Smita Divyaveer
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Dibyalochan Praharaj
- Department of Gastroenterology and Hepatology, Kalinga Institute of Medical Sciences, Bhubaneswar, Odisha, India
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Won SM, Oh KK, Gupta H, Ganesan R, Sharma SP, Jeong JJ, Yoon SJ, Jeong MK, Min BH, Hyun JY, Park HJ, Eom JA, Lee SB, Cha MG, Kwon GH, Choi MR, Kim DJ, Suk KT. The Link between Gut Microbiota and Hepatic Encephalopathy. Int J Mol Sci 2022; 23:ijms23168999. [PMID: 36012266 PMCID: PMC9408988 DOI: 10.3390/ijms23168999] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Hepatic encephalopathy (HE) is a serious complication of cirrhosis that causes neuropsychiatric problems, such as cognitive dysfunction and movement disorders. The link between the microbiota and the host plays a key role in the pathogenesis of HE. The link between the gut microbiome and disease can be positively utilized not only in the diagnosis area of HE but also in the treatment area. Probiotics and prebiotics aim to resolve gut dysbiosis and increase beneficial microbial taxa, while fecal microbiota transplantation aims to address gut dysbiosis through transplantation (FMT) of the gut microbiome from healthy donors. Antibiotics, such as rifaximin, aim to improve cognitive function and hyperammonemia by targeting harmful taxa. Current treatment regimens for HE have achieved some success in treatment by targeting the gut microbiota, however, are still accompanied by limitations and problems. A focused approach should be placed on the establishment of personalized trial designs and therapies for the improvement of future care. This narrative review identifies factors negatively influencing the gut–hepatic–brain axis leading to HE in cirrhosis and explores their relationship with the gut microbiome. We also focused on the evaluation of reported clinical studies on the management and improvement of HE patients with a particular focus on microbiome-targeted therapy.
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Pelle J, Castelli FA, Rudler M, Alioua I, Colsch B, Fenaille F, Junot C, Thabut D, Weiss N. Metabolomics in the understanding and management of hepatic encephalopathy. Anal Biochem 2022; 636:114477. [PMID: 34808106 DOI: 10.1016/j.ab.2021.114477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/30/2021] [Accepted: 11/16/2021] [Indexed: 02/05/2023]
Abstract
Metabolomics refers to the study of biological components below 1000 Daltons (Da) involved in metabolic pathways as substrates, products or effectors. According to the interconnected metabolic disturbances that have been described in the pathophysiology of hepatic encephalopathy (HE), this technique appears to be well adapted to study and better delineate the disease. This review will focus on recent advances in metabolomics in the field of HE. Thus, after a brief overview of the general principles of metabolomics, we will discuss metabolomics as a potentially efficient tool for unraveling new HE pathophysiological insights, biomarkers identification, or as a predicting tool for treatment response or outcome prognosis. Finally, we will give our vision on the prospects offered by metabolomics for improving care of HE patients.
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Affiliation(s)
- Juliette Pelle
- Sorbonne Université, AP-HP.Sorbonne Université, Hôpital de la Pitié-Salpêtrière, département de neurologie, unité de Médecine Intensive Réanimation à orientation neurologique, Paris, France; Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Maladies métaboliques, biliaires et fibro-inflammatoire du foie, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France; Groupe de Recherche Clinique en REanimation et Soins intensifs du Patient en Insuffisance Respiratoire aiguE (GRC-RESPIRE) Sorbonne Université, France
| | - Florence A Castelli
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, F-91191, Gif sur Yvette, France
| | - Marika Rudler
- Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Maladies métaboliques, biliaires et fibro-inflammatoire du foie, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France; Sorbonne Université, AP-HP.Sorbonne Université, Hôpital de la Pitié-Salpêtrière, servive d'hépato-gastoentérologie, unité de soins intensifs d'hépatologie, Paris, France
| | - Imen Alioua
- Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Maladies métaboliques, biliaires et fibro-inflammatoire du foie, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France; Sorbonne Université, AP-HP.Sorbonne Université, Hôpital de la Pitié-Salpêtrière, servive d'hépato-gastoentérologie, unité de soins intensifs d'hépatologie, Paris, France
| | - Benoit Colsch
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, F-91191, Gif sur Yvette, France
| | - François Fenaille
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, F-91191, Gif sur Yvette, France
| | - Christophe Junot
- Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Maladies métaboliques, biliaires et fibro-inflammatoire du foie, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
| | - Dominique Thabut
- Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Maladies métaboliques, biliaires et fibro-inflammatoire du foie, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France; Sorbonne Université, AP-HP.Sorbonne Université, Hôpital de la Pitié-Salpêtrière, servive d'hépato-gastoentérologie, unité de soins intensifs d'hépatologie, Paris, France
| | - Nicolas Weiss
- Sorbonne Université, AP-HP.Sorbonne Université, Hôpital de la Pitié-Salpêtrière, département de neurologie, unité de Médecine Intensive Réanimation à orientation neurologique, Paris, France; Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM UMR_S 938, Centre de recherche Saint-Antoine, Maladies métaboliques, biliaires et fibro-inflammatoire du foie, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France; Groupe de Recherche Clinique en REanimation et Soins intensifs du Patient en Insuffisance Respiratoire aiguE (GRC-RESPIRE) Sorbonne Université, France.
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Bioinformatics-Based Analysis of lncRNA-mRNA Interaction Network of Mild Hepatic Encephalopathy in Cirrhosis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:7777699. [PMID: 34938356 PMCID: PMC8687767 DOI: 10.1155/2021/7777699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/23/2021] [Indexed: 12/14/2022]
Abstract
Backgrounds Serum long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs) interaction network was discovered to exert an important role in liver cirrhosis while little is known in mild hepatic encephalopathy (MHE). Therefore, we aim to systematically evaluate the serum lncRNA-mRNA network and its regulatory mechanism in MHE. Methods The data of serum mRNAs and lncRNAs were derived from the Gene Expression Omnibus (GEO) database. The differentially expressed genes (DEGs) were calculated between 11 cirrhotic patients with and without MHE. Next, the biological functions and underlined pathways of DEGs were determined through Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Finally, an interactive network between lncRNAs and mRNAs was built, and hub genes were identified, respectively. Results A total of 64 differentially expressed lncRNAs (dif-lncRNAs) were found between patients with and without MHE, including 30 up- and 34 downregulated genes. 187 differentially expressed mRNAs (dif-mRNAs) were identified, including 84 up- and 103 downregulated genes. Functional enrichment analysis suggested that the regulatory pathways involved in MHE mainly consisted of a series of immune and inflammatory responses. Several hub mRNAs involved in regulatory network were identified, including CCL5, CCR5, CXCR3, CD274, STAT1, CXCR6, and EOMES. In addition, lnc-FAM84B-8 and lnc-SAMD3-1 were found to regulate these above hub genes through building a lncRNA-mRNA network. Conclusion This is the first study to construct the serum lncRNA-mRNA network in MHE, demonstrating the critical role of lncRNAs in regulating inflammatory and immunological profiles in the developing of MHE, suggesting a latent mechanism in this pathophysiological process.
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Balint E, Ashkar AA. Remote hyperinflammation drives neurological disease via T-cell-mediated innate-like cytotoxicity. Cell Mol Immunol 2021; 18:1638-1640. [PMID: 34099888 PMCID: PMC8245544 DOI: 10.1038/s41423-021-00705-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 05/09/2021] [Indexed: 02/03/2023] Open
Affiliation(s)
- Elizabeth Balint
- Department of Medicine, McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
| | - Ali A Ashkar
- Department of Medicine, McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada.
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Tarazona S, Arzalluz-Luque A, Conesa A. Undisclosed, unmet and neglected challenges in multi-omics studies. NATURE COMPUTATIONAL SCIENCE 2021; 1:395-402. [PMID: 38217236 DOI: 10.1038/s43588-021-00086-z] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/17/2021] [Indexed: 01/15/2024]
Abstract
Multi-omics approaches have become a reality in both large genomics projects and small laboratories. However, the multi-omics research community still faces a number of issues that have either not been sufficiently discussed or for which current solutions are still limited. In this Perspective, we elaborate on these limitations and suggest points of attention for future research. We finally discuss new opportunities and challenges brought to the field by the rapid development of single-cell high-throughput molecular technologies.
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Affiliation(s)
- Sonia Tarazona
- Department of Applied Statistics, Operations Research and Quality, Universitat Politècnica de València, Valencia, Spain
| | - Angeles Arzalluz-Luque
- Department of Applied Statistics, Operations Research and Quality, Universitat Politècnica de València, Valencia, Spain
| | - Ana Conesa
- Microbiology and Cell Science Department, Institute for Food and Agricultural Research, University of Florida, Gainesville, FL, USA.
- Genetics Institute, University of Florida, Gainesville, FL, USA.
- Institute for Integrative Systems Biology, Spanish National Research Council, Valencia, Spain.
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