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Metabolites, Volume 10, Issue 1

January 2020 - 41 articles

Cover Story: Metabolomics is a powerful tool, but its full utility is still impeded by several challenges. These include the accurate chemical identification of all metabolites and limited depth-of-coverage of current methods. This article presents a four-dimensional solution using UHPLC-trapped ion mobility spectrometry coupled to tandem mass spectrometry (UHPLC-TIMS-TOF-MS). Multidimensional UHPLC-TIMS separations offer additional depth of coverage through increased peak capacities, while metabolite identification confidence is simultaneously enhanced by incorporating orthogonal collision cross-section (CCS) data matching. Thus, a CCS library of plant natural products was generated to facilitate metabolite identifications, and its use was demonstrated with extracts from the model legume Medicago truncatula. View this paper.
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Articles (41)

  • Review
  • Open Access
30 Citations
6,755 Views
26 Pages

Adipokines and Adipose Tissue-Related Metabolites, Nuts and Cardiovascular Disease

  • Camila Weschenfelder,
  • Alexandre Schaan de Quadros,
  • Julia Lorenzon dos Santos,
  • Silvia Bueno Garofallo and
  • Aline Marcadenti

11 January 2020

Adipose tissue is a complex structure responsible for fat storage and releasing polypeptides (adipokines) and metabolites, with systemic actions including body weight balance, appetite regulation, glucose homeostasis, and blood pressure control. Sign...

  • Article
  • Open Access
9 Citations
4,742 Views
11 Pages

10 January 2020

Subcellular compartmentation has been challenging in plant 13C-metabolic flux analysis. Indeed, plant cells are highly compartmented: they contain vacuoles and plastids in addition to the regular organelles found in other eukaryotes. The distinction...

  • Article
  • Open Access
35 Citations
5,911 Views
16 Pages

Biotransformation of Silymarin Flavonolignans by Human Fecal Microbiota

  • Kateřina Valentová,
  • Jaroslav Havlík,
  • Pavel Kosina,
  • Barbora Papoušková,
  • José Diógenes Jaimes,
  • Kristýna Káňová,
  • Lucie Petrásková,
  • Jitka Ulrichová and
  • Vladimír Křen

9 January 2020

Flavonolignans occur typically in Silybum marianum (milk thistle) fruit extract, silymarin, which contains silybin, isosilybin, silychristin, silydianin, and their 2,3-dehydroderivatives, together with other minor flavonoids and a polymeric phenolic...

  • Article
  • Open Access
17 Citations
5,516 Views
13 Pages

A Case Report of Switching from Specific Vendor-Based to R-Based Pipelines for Untargeted LC-MS Metabolomics

  • Álvaro Fernández-Ochoa,
  • Rosa Quirantes-Piné,
  • Isabel Borrás-Linares,
  • María de la Luz Cádiz-Gurrea,
  • PRECISESADS Clinical Consortium,
  • Marta E. Alarcón Riquelme,
  • Carl Brunius and
  • Antonio Segura-Carretero

8 January 2020

Data pre-processing of the LC-MS data is a critical step in untargeted metabolomics studies in order to achieve correct biological interpretations. Several tools have been developed for pre-processing, and these can be classified into either commerci...

  • Article
  • Open Access
17 Citations
7,634 Views
12 Pages

7 January 2020

Bile acids represent a large class of steroid acids synthesized in the liver and further metabolized by many bacterial and mammalian enzymes. Variations in bile acid levels can be used as a measure of liver function. There still exists, however, a ne...

  • Article
  • Open Access
41 Citations
5,374 Views
22 Pages

Effects of Thymoquinone on Small-Molecule Metabolites in a Rat Model of Cerebral Ischemia Reperfusion Injury Assessed using MALDI-MSI

  • Fang Tian,
  • Runzhe Liu,
  • Chaoxin Fan,
  • Yi Sun,
  • Xi Huang,
  • Zongxiu Nie,
  • Xin Zhao and
  • Xiaoping Pu

7 January 2020

Thymoquinone is one of the main components present in Nigella sativa seeds and is known to have various biological functions in inflammation, oxidative stress, tumors, aging, and in lowering blood glucose levels. Few studies have focused on its neuro...

  • Article
  • Open Access
13 Citations
4,734 Views
16 Pages

Metabolomics Provide Sensitive Insights into the Impacts of Low Level Environmental Contamination on Fish Health—A Pilot Study

  • Sara M. Long,
  • Dedreia L. Tull,
  • David P. De Souza,
  • Konstantinos A. Kouremenos,
  • Saravanan Dayalan,
  • Malcolm J. McConville,
  • Kathryn L. Hassell,
  • Vincent J. Pettigrove and
  • Marthe Monique Gagnon

6 January 2020

This exploratory study aims to investigate the health of sand flathead (Platycephalus bassensis) sampled from five sites in Port Phillip Bay, Australia using gas chromatography-mass spectrometry (GC-MS) metabolomics approaches. Three of the sites wer...

  • Article
  • Open Access
40 Citations
5,000 Views
18 Pages

Phytohormone and Transcriptomic Analysis Reveals Endogenous Cytokinins Affect Kiwifruit Growth under Restricted Carbon Supply

  • Simona Nardozza,
  • Janine Cooney,
  • Helen L. Boldingh,
  • Katrin G. Hewitt,
  • Tania Trower,
  • Dan Jones,
  • Amali H. Thrimawithana,
  • Andrew C. Allan and
  • Annette C. Richardson

4 January 2020

Following cell division, fruit growth is characterized by both expansion through increases in cell volume and biomass accumulation in cells. Fruit growth is limited by carbon starvation; however, the mechanism controlling fruit growth under restricte...

  • Article
  • Open Access
9 Citations
4,462 Views
15 Pages

1 January 2020

This study aimed to explore the dynamic changes in metabolite profiles and metabolism pathways in the serum of growing pigs by intravenous infusion of sodium butyrate (SB). Fourteen crossbred growing barrows (BW = 23.70 ± 1.29 kg) fitted with...

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Metabolites - ISSN 2218-1989