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Paul KC, Zhang K, Walker DI, Sinsheimer J, Yu Y, Kusters C, Del Rosario I, Folle AD, Keener AM, Bronstein J, Jones DP, Ritz B. Untargeted serum metabolomics reveals novel metabolite associations and disruptions in amino acid and lipid metabolism in Parkinson's disease. Mol Neurodegener 2023; 18:100. [PMID: 38115046 PMCID: PMC10731845 DOI: 10.1186/s13024-023-00694-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 12/06/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Untargeted high-resolution metabolomic profiling provides simultaneous measurement of thousands of metabolites. Metabolic networks based on these data can help uncover disease-related perturbations across interconnected pathways. OBJECTIVE Identify metabolic disturbances associated with Parkinson's disease (PD) in two population-based studies using untargeted metabolomics. METHODS We performed a metabolome-wide association study (MWAS) of PD using serum-based untargeted metabolomics data derived from liquid chromatography with high-resolution mass spectrometry (LC-HRMS) using two distinct population-based case-control populations. We also combined our results with a previous publication of 34 metabolites linked to PD in a large-scale, untargeted MWAS to assess external validation. RESULTS LC-HRMS detected 4,762 metabolites for analysis (HILIC: 2716 metabolites; C18: 2046 metabolites). We identified 296 features associated with PD at FDR<0.05, 134 having a log2 fold change (FC) beyond ±0.5 (228 beyond ±0.25). Of these, 104 were independently associated with PD in both discovery and replication studies at p<0.05 (170 at p<0.10), while 27 were associated with levodopa-equivalent dose among the PD patients. Intriguingly, among the externally validated features were the microbial-related metabolites, p-cresol glucuronide (FC=2.52, 95% CI=1.67, 3.81, FDR=7.8e-04) and p-cresol sulfate. P-cresol glucuronide was also associated with motor symptoms among patients. Additional externally validated metabolites associated with PD include phenylacetyl-L-glutamine, trigonelline, kynurenine, biliverdin, and pantothenic acid. Novel associations include the anti-inflammatory metabolite itaconate (FC=0.79, 95% CI=0.73, 0.86; FDR=2.17E-06) and cysteine-S-sulfate (FC=1.56, 95% CI=1.39, 1.75; FDR=3.43E-11). Seventeen pathways were enriched, including several related to amino acid and lipid metabolism. CONCLUSIONS Our results revealed PD-associated metabolites, confirming several previous observations, including for p-cresol glucuronide, and newly implicating interesting metabolites, such as itaconate. Our data also suggests metabolic disturbances in amino acid and lipid metabolism and inflammatory processes in PD.
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Affiliation(s)
- Kimberly C Paul
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA.
| | - Keren Zhang
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Douglas I Walker
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Janet Sinsheimer
- Department of Human Genetics, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
- Department of Biostatistics, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Yu Yu
- Center for Health Policy Research, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Cynthia Kusters
- Department of Human Genetics, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Irish Del Rosario
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Aline Duarte Folle
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Adrienne M Keener
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
- Parkinson's Disease Research, Education, and Clinical Center, Greater Los Angeles Veterans Affairs Medical Center, Los Angeles, CA, USA
| | - Jeff Bronstein
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Dean P Jones
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Beate Ritz
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
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2
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Turathum B, Gao EM, Yang F, Liu YB, Yang ZY, Liu CC, Xue YJ, Wu MH, Wang L, Grataitong K, Chian RC. Role of pyroglutamic acid in cumulus cells of women with polycystic ovary syndrome. J Assist Reprod Genet 2022; 39:2737-2746. [PMID: 36322230 PMCID: PMC9790836 DOI: 10.1007/s10815-022-02647-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022] Open
Abstract
PURPOSE Polycystic ovary syndrome is a complex heterogeneous endocrine disorder associated with established metabolic abnormalities and is a common cause of infertility in females. Glutathione metabolism in the cumulus cells (CCs) of women with PCOS may be correlated to the quality of oocytes for infertility treatment; therefore, we used a metabolomics approach to examine changes in CCs from women with PCOS and oocyte quality. METHODS Among 135 women undergoing fertility treatment in the present study, there were 43 women with PCOS and 92 without. CCs were collected from the two groups and levels of pyroglutamic acid were measured using LC-MS/MS followed by qPCR and Western blot analysis to examine genes and proteins involved in pyroglutamic acid metabolism related to glutathione synthesis. RESULTS Women with PCOS showed increased levels of L-pyroglutamic acid, L-glutamate, and L-phenylalanine and decreased levels of Cys-Gly and N-acetyl-L-methionine. Gene expression of OPLAH, involved in pyroglutamic synthesis, was significantly increased in women with PCOS compared with those without. Gene expression of GSS was significantly decreased in women with PCOS and synthesis of glutathione synthetase protein was decreased. Expression of nuclear factor erythroid 2-related factor 2, involved in resistance to oxidative stress, was significantly increased in women with PCOS. CONCLUSIONS CCs of women with PCOS showed high concentrations of pyroglutamic acid and reduced glutathione synthesis, which causes oxidative stress in CCs, suggesting that decreased glutathione synthesis due to high levels of pyroglutamic acid in CCs may be related to the quality of oocytes in women with PCOS.
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Affiliation(s)
- Bongkoch Turathum
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
- Department of Basic Medical Science, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, 10300, Thailand
| | - Er-Meng Gao
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
- Shanghai Clinical College, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Feng Yang
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Yu-Bing Liu
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Zhi-Yong Yang
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Chen-Chen Liu
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Yun-Jing Xue
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Meng-Hua Wu
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Ling Wang
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China
| | - Khwanthana Grataitong
- Department of Basic Medical Science, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, 10300, Thailand
| | - Ri-Cheng Chian
- Centre for Reproductive Medicine, Shanghai 10Th People Hospital of Tongji University, Shanghai, People's Republic of China.
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Allen BJ, Abu Shanab AA, Anderson MR, Fogden EN. Recurrent Pyroglutamic Acidosis in the Context of Undiagnosed Liver Cirrhosis-A Case Report. J Clin Exp Hepatol 2021; 11:623-627. [PMID: 34511825 PMCID: PMC8414321 DOI: 10.1016/j.jceh.2020.10.004] [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: 06/18/2020] [Accepted: 10/11/2020] [Indexed: 12/12/2022] Open
Abstract
Metabolic associated fatty liver disease, previously known as nonalcoholic fatty liver disease, is the most common cause of chronic liver disease across all ethnic groups; however, it remains enormously underestimated.1 , 2 Sepsis, hepatotoxic medications and malnutrition in the acute settings on top of unknown cirrhosis can lead to decompensation and various metabolic complications. Pyroglutamic acidosis is a rarely recognised cause for unexplained high anion gap metabolic acidosis that is felt to be frequently underdiagnosed. Particular patients at risk include women, the elderly, those on regular paracetamol and those suffering with malnourishment or sepsis. Other risk factors include alcohol abuse and chronic liver disease (3). We present the case of a patient with recurrent episodes of pyroglutamic acidosis and encephalopathy in the context of undiagnosed nonalcoholic fatty liver disease with cirrhosis.
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Affiliation(s)
- Bradley J.W. Allen
- Department of Anaesthesia and Intensive Care, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom,Address for correspondence: Dr Bradley J W Allen
| | - Ahmed A. Abu Shanab
- Department of Gastroenterology and Hepatology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Mark R. Anderson
- Department of Gastroenterology and Hepatology, Birmingham City Hospital, Birmingham, United Kingdom
| | - Edward N. Fogden
- Department of Gastroenterology and Hepatology, Birmingham City Hospital, Birmingham, United Kingdom
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Tsoukalas D, Fragoulakis V, Papakonstantinou E, Antonaki M, Vozikis A, Tsatsakis A, Buga AM, Mitroi M, Calina D. Prediction of Autoimmune Diseases by Targeted Metabolomic Assay of Urinary Organic Acids. Metabolites 2020; 10:E502. [PMID: 33302528 PMCID: PMC7764183 DOI: 10.3390/metabo10120502] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases (ADs) are chronic disorders characterized by the loss of self-tolerance, and although being heterogeneous, they share common pathogenic mechanisms. Self-antigens and inflammation markers are established diagnostic tools; however, the metabolic imbalances that underlie ADs are poorly described. The study aimed to employ metabolomics for the detection of disease-related changes in autoimmune diseases that could have predictive value. Quantitative analysis of 28 urine organic acids was performed using Gas Chromatography-Mass Spectrometry in a group of 392 participants. Autoimmune thyroiditis, inflammatory bowel disease, psoriasis and rheumatoid arthritis were the most prevalent autoimmune diseases of the study. Statistically significant differences were observed in the tricarboxylate cycle metabolites, succinate, methylcitrate and malate, the pyroglutamate and 2-hydroxybutyrate from the glutathione cycle and the metabolites methylmalonate, 4-hydroxyphenylpyruvate, 2-hydroxyglutarate and 2-hydroxyisobutyrate between the AD group and the control. Artificial neural networks and Binary logistic regression resulted in the highest predictive accuracy scores (66.7% and 74.9%, respectively), while Methylmalonate, 2-Hydroxyglutarate and 2-hydroxybutyrate were proposed as potential biomarkers for autoimmune diseases. Urine organic acid levels related to the mechanisms of energy production and detoxification were associated with the presence of autoimmune diseases and could be an adjunct tool for early diagnosis and prediction.
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Affiliation(s)
- Dimitris Tsoukalas
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Metabolomic Medicine, Health Clinic for Autoimmune and Chronic Diseases, 10674 Athens, Greece;
- European Institute of Nutritional Medicine (E.I.Nu.M.), 00198 Rome, Italy
| | | | | | - Maria Antonaki
- Laboratory of Health Economics & Management, Economics Department, University of Piraeus, 18534 Piraeus, Greece; (M.A.); (A.V.)
| | - Athanassios Vozikis
- Laboratory of Health Economics & Management, Economics Department, University of Piraeus, 18534 Piraeus, Greece; (M.A.); (A.V.)
| | - Aristidis Tsatsakis
- Laboratory of Toxicology and Forensic Sciences, Medical School, University of Crete, 71003 Heraklion, Greece;
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 119991 Moscow, Russia
| | - Ana Maria Buga
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Mihaela Mitroi
- ENT Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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5
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Gueta I, Perach Ovadia Y, Markovits N, Schacham YN, Epsztein A, Loebstein R. Is Pyroglutamic Acid a Prognostic Factor Among Patients with Suspected Infection? A Prospective Cohort Study. Sci Rep 2020; 10:10128. [PMID: 32576856 PMCID: PMC7311518 DOI: 10.1038/s41598-020-66941-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/28/2020] [Indexed: 11/09/2022] Open
Abstract
Pyroglutamic acid (PGA) is a compound that accumulates during oxidative stress and hence, elevated levels may be associated with poor prognosis in patients with infection or sepsis. To examine this hypothesis, patients presenting with acute infection were recruited in the emergency department and prospectively followed for 30 days. Sport urine samples were quantified for PGA. Outcomes were mortality and composite outcome of death or organ failure. Thirty two (32%) patients had qSOFA≥2. Median urine PGA was 22.9 (IQR 17.64, 33.53) µmol/mmol creatinine. Four patients demonstrated PGA values ≥ 63 µmol/mmol creatinine. Univariate analysis showed that PGA concentration ≥ 75th percentile (i.e. 33.53 µmol/mmol creatinine) was associated with higher rates of in-hospital mortality (p = 0.041) with similar trend for PGA ≥ 63 µmol/mmol creatinine (p = 0.04). However, multivariate analysis showed that PGA was not associated with worse outcomes, whereas heart rate was associated with both composite outcomes (HR 1.0, p = 0.008 and HR 1.02, p = 0.001 for composite outcome with 30 days and in-hospital mortality, respectively). Among low risk patients, high PGA levels were consistently associated with worse outcomes. In conclusion, urine PGA concentration was not associated with worse outcomes among septic patients. Nevertheless, future studies should evaluate this association in larger cohorts.
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Affiliation(s)
- Itai Gueta
- The institute of Clinical Pharmacology and Toxicology, Sheba Medical Center, Tel Hashomer, Israel. .,Department of Medicine A, Sheba Medical Center, Tel Hashomer, Israel. .,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | | | - Noa Markovits
- The institute of Clinical Pharmacology and Toxicology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yehoshua N Schacham
- The institute of Clinical Pharmacology and Toxicology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Avi Epsztein
- Department of Emergency Medicine, Sheba Medical Center, Tel Hashomer, Israel
| | - Ronen Loebstein
- The institute of Clinical Pharmacology and Toxicology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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6
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Gamarra Y, Santiago FC, Molina-López J, Castaño J, Herrera-Quintana L, Domínguez Á, Planells E. Pyroglutamic acidosis by glutathione regeneration blockage in critical patients with septic shock. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:162. [PMID: 31064391 PMCID: PMC6505226 DOI: 10.1186/s13054-019-2450-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 04/17/2019] [Indexed: 12/14/2022]
Abstract
AIM The aim of this study was to evaluate oxidative stress from glutathione depletion in critically ill patients with a septic shock through the abnormal presence of pyroglutamic acid (PyroGlu) in the urine (indirectly) and through its serum level (directly). METHODS This was a prospective analytical study of 28 critically ill patients with a septic shock who were monitored from admission (initial) to 3 days of stay (final) in the intensive care unit (ICU). Data collected included PyroGlu and glutamic acid (Glu) using liquid chromatography/mass spectrometry, and glutathione peroxidase (GPX) activity with a colorimetric assay. The differences in Glu, PyroGlu, and GPX activity between the septic shock group and healthy control group serving as reference values were evaluated using the Mann-Whitney test. The correlations between Glu, PyroGlu, and GPX activity and clinical outcomes were determined using Spearman's correlation coefficient. RESULTS In patients with septic shock, serum and urine PyroGlu levels were higher, erythrocyte GPX activity/gr Hb was lower, and urine Glu levels were lower compared to healthy control reference values, for both initial and final values. Initial serum Glu levels were also lower. Serum PyroGlu levels had a correlation with both initial and final serum Glu levels; levels also correlated in the urine. Initial serum Glu correlated with the days of mechanical ventilation (P = 0.016) and the days of ICU stay (P = 0.05). Urine Glu/mg creatinine correlated with APACHE II (P = 0.030). This positive correlation observed for serum Glu was not observed for PyroGlu. CONCLUSIONS The current study found that septic patients have higher levels of PyroGlu, lower levels of Glu, and lower erythrocyte GPX activity, suggesting that these biomarkers could be used as an indicator of glutathione depletion. In addition, Glu is related to severity parameters. This study can guide future studies on the importance of monitoring the levels of pyroglutamic acidosis in critical patients with septic shock in order to preserve the oxidative status and its evolution during the stay in the ICU.
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Affiliation(s)
- Yenifer Gamarra
- Department of Physiology, Faculty of Pharmacy, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Health Campus, Adv. del Conocimiento S/N, 18071, Granada, Spain. .,Clinical Analysis Unit, San Cecilio Hospital, 18016, Granada, Spain.
| | - Felipe C Santiago
- Intensive Care Unit, Virgen de las Nieves Hospital, 18014, Granada, Spain
| | - Jorge Molina-López
- Department of Physiology, Faculty of Pharmacy, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Health Campus, Adv. del Conocimiento S/N, 18071, Granada, Spain
| | - José Castaño
- Intensive Care Unit, Virgen de las Nieves Hospital, 18014, Granada, Spain
| | - Lourdes Herrera-Quintana
- Department of Physiology, Faculty of Pharmacy, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Health Campus, Adv. del Conocimiento S/N, 18071, Granada, Spain
| | - Álvaro Domínguez
- Department of Physiology, Faculty of Pharmacy, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Health Campus, Adv. del Conocimiento S/N, 18071, Granada, Spain
| | - Elena Planells
- Department of Physiology, Faculty of Pharmacy, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Health Campus, Adv. del Conocimiento S/N, 18071, Granada, Spain.
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7
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Pyroglutamic acidosis as a cause for high anion gap metabolic acidosis: a prospective study. Sci Rep 2019; 9:3554. [PMID: 30837497 PMCID: PMC6400893 DOI: 10.1038/s41598-019-39257-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 01/16/2019] [Indexed: 11/08/2022] Open
Abstract
5-oxoprolinemia (pyroglutamic acid, PGA) in the absence of acetaminophen use has been rarely reported as a cause for high anion gap metabolic acidosis. We investigated the prevalence and risk factors for elevated PGA concentrations among hospitalized patients with high anion gap metabolic acidosis: We prospectively enrolled patients with high anion gap metabolic acidosis hospitalized in the department of medicine. For each patient we collected the main diagnosis, concurrent medications and laboratory parameters. Spot urine samples were tested for PGA concentration. Levels ≥63 µmol/mmol creatinine were considered elevated. Overall, forty patients were prospectively followed. Mean age was 66.9 (17.9) years. Four (6.3%) patients had a high urine PGA level and demonstrated also lower blood pH (7.2 vs 7.3, p = 0.05) and lower serum lactate concentration (17.5 mg/dl vs 23.0 mg/dl, p = 0.04). Additionally, the high PGA level group consisted of more patients with septic shock [2/4 (50%) vs 3/36 (8.3%)] with a trend towards significance (p = 0.07). In conclusion, PGA might have a role in patients with septic shock and acidosis. Being a treatable condition, PGA should be taken into consideration particularly when no other cause for high anion gap is identified.
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Wei R, Ross AB, Su M, Wang J, Guiraud SP, Draper CF, Beaumont M, Jia W, Martin FP. Metabotypes Related to Meat and Vegetable Intake Reflect Microbial, Lipid and Amino Acid Metabolism in Healthy People. Mol Nutr Food Res 2018; 62:e1800583. [PMID: 30098305 DOI: 10.1002/mnfr.201800583] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/25/2018] [Indexed: 01/05/2023]
Abstract
SCOPE The objective of this study is to develop a new methodology to identify the relationship between dietary patterns and metabolites indicative of food intake and metabolism. METHODS AND RESULTS Plasma and urine samples from healthy Swiss subjects (n = 89) collected over two time points are analyzed for a panel of host-microbial metabolites using GC- and LC-MS. Dietary intake is evaluated using a validated food frequency questionnaire. Dietary pattern clusters and relationships with metabolites are determined using Non-Negative Matrix Factorization (NNMF) and Sparse Generalized Canonical Correlation Analysis (SGCCA). Use of NNMF allows detection of latent diet clusters in this population, which describes a high intake of meat or vegetables. SGCCA associates these clusters to i) diet-host microbial and lipid associated bile acid metabolism, and ii) essential amino acid metabolism. CONCLUSION This novel application of NNMF and SGCCA allows detection of distinct metabotypes for meat and vegetable dietary patterns in a heterogeneous population. As many of the metabolites associated with meat or vegetable intake are the result of host-microbiota interactions, the findings support a role for microbiota mediating the metabolic imprinting of different dietary choices.
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Affiliation(s)
- Runmin Wei
- University of Hawaii Cancer Center (UHCC), Honolulu, HI, 96813, USA.,Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA
| | - Alastair B Ross
- Analytical Science Department, Nestlé Research Center, Lausanne, Switzerland.,Division of Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - MingMing Su
- University of Hawaii Cancer Center (UHCC), Honolulu, HI, 96813, USA
| | - Jingye Wang
- University of Hawaii Cancer Center (UHCC), Honolulu, HI, 96813, USA
| | - Seu-Ping Guiraud
- Nutrition and Metabolic health Department, Nestle Institute of Health Sciences (NIHS), Lausanne, Switzerland
| | - Colleen Fogarty Draper
- Nutrition and Metabolic health Department, Nestle Institute of Health Sciences (NIHS), Lausanne, Switzerland
| | - Maurice Beaumont
- Clinical Development Unit, Nestlé Research Center, Lausanne, Switzerland
| | - Wei Jia
- University of Hawaii Cancer Center (UHCC), Honolulu, HI, 96813, USA
| | - Francois-Pierre Martin
- Nutrition and Metabolic health Department, Nestle Institute of Health Sciences (NIHS), Lausanne, Switzerland
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Drummond J. Functional Nutrition Treatment of Vulvodynia, Irritable Bowel Syndrome, and Depression: A Case Report. Integr Med (Encinitas) 2018; 17:44-51. [PMID: 30962795 PMCID: PMC6396768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A 34-y-old pregnant woman previously diagnosed with vulvodynia, irritable bowel syndrome (IBS), and depression used an elimination diet and nutritional supplementation-from 15 wk pregnant to 22 wk postpartum-to resolve her vulvodynia and IBS, and to reduce her use of antidepressant medication. This case demonstrates the potential usefulness of incorporating a customized functional nutritional approach to evaluate potential proinflammatory foods and nutritional insufficiencies in perinatal patients and postnatal patients.
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Affiliation(s)
- Jessica Drummond
- Corresponding author: Jessica Drummond, DCN, CNS, PT E-mail address:
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10
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Martin FP, Su MM, Xie GX, Guiraud SP, Kussmann M, Godin JP, Jia W, Nydegger A. Urinary metabolic insights into host-gut microbial interactions in healthy and IBD children. World J Gastroenterol 2017; 23:3643-3654. [PMID: 28611517 PMCID: PMC5449421 DOI: 10.3748/wjg.v23.i20.3643] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/29/2017] [Accepted: 05/04/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To identify metabolic signatures in urine samples from healthy and inflammatory bowel disease (IBD) children.
METHODS We applied liquid chromatography and gas chromatography coupled to targeted mass spectrometry (MS)-based metabolite profiling to identify and quantify bile acids and host-gut microbial metabolites in urine samples collected from 21 pediatric IBD patients monitored three times over one year (baseline, 6 and 12 mo), and 27 age- and gender-matched healthy children.
RESULTS urinary metabolic profiles of IBD children differ significantly from healthy controls. Such metabolic differences encompass central energy metabolism, amino acids, bile acids and gut microbial metabolites. In particular, levels of pyroglutamic acid, glutamic acid, glycine and cysteine, were significantly higher in IBD children in the course of the study. This suggests that glutathione cannot be optimally synthesized and replenished. Whilst alterations of the enterohepatic circulation of bile acids in pediatric IBD patients is known, we show here that non-invasive urinary bile acid profiling can assess those altered hepatic and intestinal barrier dysfunctions.
CONCLUSION The present study shows how non-invasive sampling of urine followed by targeted MS-based metabonomic analysis can elucidate and monitor the metabolic status of children with different GI health/disease status.
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11
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Abstract
An investigation of human biological variation in urinary organic acids, including pyroglutamic acid along with 39 other compounds, was previously reported in which levels were determined for 8 weeks in healthy adult subjects. Here, unique, 4‐week‐long physiological trends for one of those compounds, pyroglutamic acid (PGA), are reported. When PGA levels for an individual rose above 40 μg/mg creatinine, 4‐week downward progressions occurred until levels reached values near 15 μg/mg creatinine and the pattern was reversed when levels for an individual were below that level in the early weeks of the study. The pattern was especially prominent among 8 of the 13 menstruating female subjects suggesting a possible association with metabolic stress of the menstrual cycle. However, it also appeared in 3 of the 8 male subjects where other sources of metabolic stress may be present. The menstrual association is consistent with estrogen‐mediated increase in oxidative stress. Since PGA is linked to glutathione turnover, the consistency of extreme values across all individuals displaying the pattern indicates that 15 and 40 μg/mg creatinine may represent limits that trigger shifts in sulfur amino acid metabolism. This is the first observation of approximate month‐long cyclic responses in a glutathione‐related urinary marker in humans.
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