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Metabolites, Volume 14, Issue 7

July 2024 - 51 articles

Cover Story: The separation of cyanogenic glycosides (CNGs) has been reported as challenging, especially the (R)-prunasin and sambunigrin isomers found in American elderberry (Sambucus nigra L. subsp. canadensis (L.) Bolli). Thus, a multiple reaction monitoring (MRM)-based ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS) method was developed, validated, and reported here for simultaneous separation and quantification of five CNGs, including amygdalin, dhurrin, linamarin, (R)-prunasin, and (S)-prunasin (commonly referred to as sam-bunigrin), in leaf and fruit samples of American elderberry. Ammonium formate was used as an aqueous mobile-phase additive to improve MS/MS fragmentation. Chromatographic conditions were optimized and reported for the resolved separation of (R)-prunasin and sambunigrin. View this paper
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Articles (51)

  • Article
  • Open Access
6 Citations
2,669 Views
15 Pages

Amino Acid Profile Alterations in Phenylketonuria: Implications for Clinical Practice

  • Eliza Matuszewska,
  • Joanna Matysiak,
  • Łukasz Kałużny,
  • Dariusz Walkowiak,
  • Szymon Plewa,
  • Monika Duś-Żuchowska,
  • Natalia Rzetecka,
  • Małgorzata Jamka,
  • Agnieszka Klupczyńska-Gabryszak and
  • Marcin Piorunek
  • + 2 authors

Patients with phenylketonuria (PKU) must restrict their intake of phenylalanine, which can also affect the levels of other essential and non-essential amino acids due to inadequate supply. Therefore, our objective was to assess amino acids in serum s...

  • Article
  • Open Access
2,773 Views
38 Pages

A Multiomics, Molecular Atlas of Breast Cancer Survivors

  • Brent A. Bauer,
  • Caleb M. Schmidt,
  • Kathryn J. Ruddy,
  • Janet E. Olson,
  • Cem Meydan,
  • Julian C. Schmidt,
  • Sheena Y. Smith,
  • Fergus J. Couch,
  • John C. Earls and
  • Nathan D. Price
  • + 5 authors

Breast cancer imposes a significant burden globally. While the survival rate is steadily improving, much remains to be elucidated. This observational, single time point, multiomic study utilizing genomics, proteomics, targeted and untargeted metabolo...

  • Article
  • Open Access
3 Citations
2,634 Views
13 Pages

The Severity of DSS-Induced Colitis Is Independent of the SCFA-FFAR2/3-GLP-1 Pathway Despite SCFAs Inducing GLP-1 Secretion via FFAR2/3

  • Jenna Elizabeth Hunt,
  • Charlotte Bayer Christiansen,
  • Mohammad Yassin,
  • Bolette Hartmann,
  • Stefan Offermanns,
  • Lars Ove Dragsted,
  • Jens Juul Holst and
  • Hannelouise Kissow

Short-chain fatty acids (SCFAs) are the major microbial metabolites produced from the fermentation of dietary fiber in the gut. They are recognised as secretagogues of the glucagon-like peptides, GLP-1 and GLP-2, likely mediated by the activation of...

  • Article
  • Open Access
3 Citations
2,214 Views
15 Pages

Diagnostic Potential of Alternations of Bile Acid Profiles in the Plasma of Patients with Huntington’s Disease

  • Ping-I Chiang,
  • Kuo-Hsuan Chang,
  • Hsiang-Yu Tang,
  • Yih-Ru Wu,
  • Mei-Ling Cheng and
  • Chiung-Mei Chen

Huntington’s disease (HD) is characterized by progressive involuntary chorea movements and cognitive decline. Recent research indicates that metabolic disturbance may play a role in its pathogenesis. Bile acids, produced during cholesterol meta...

  • Article
  • Open Access
2,096 Views
14 Pages

It is assumed that bilirubin is hormonally regulated and influences weight development by preventing weight gain. However, studies in healthy infants are limited. The present study established reference values for bilirubin and investigated whether b...

  • Review
  • Open Access
7 Citations
3,567 Views
31 Pages

Hunting Metabolic Biomarkers for Exposure to Per- and Polyfluoroalkyl Substances: A Review

  • Xue Ma,
  • Delei Cai,
  • Qing Chen,
  • Zhoujing Zhu,
  • Shixin Zhang,
  • Ziyu Wang,
  • Zhengyan Hu,
  • Haitao Shen and
  • Zhen Meng

Per- and polyfluoroalkyl substances (PFAS) represent a class of persistent synthetic chemicals extensively utilized across industrial and consumer sectors, raising substantial environmental and human health concerns. Epidemiological investigations ha...

  • Article
  • Open Access
1,785 Views
14 Pages

Fermentation—a process of compound degradation by microorganisms—is a traditional food processing method utilized worldwide for the long-term preservation of fresh foods. In recent years, fermented foods have gained attention as health fo...

  • Article
  • Open Access
1 Citations
2,877 Views
10 Pages

Oral Supplementation with Betaine Powder Ameliorated High Blood Pressure in Spontaneously Hypertensive Rats

  • Samanthi Wathsala Pelpolage,
  • Rie Sasaki,
  • Kenichiro Shimada,
  • Taizo Nagura,
  • Hirokatsu Uchino,
  • Kyu-Ho Han and
  • Michihiro Fukushima

Supplementation of betaine is associated with improved cardiac health, potentially due to its function in re-methylation of homocysteine, an independent risk factor for cardiovascular diseases. We investigated the effects of oral betaine supplementat...

  • Article
  • Open Access
2 Citations
1,715 Views
11 Pages

Branched-chain amino acids (BCAA) are correlated with severity of insulin resistance, which may partially result from mitochondrial dysfunction. Mitochondrial dysfunction is also common during insulin resistance and is regulated in part by altered mi...

  • Review
  • Open Access
10 Citations
4,489 Views
49 Pages

The Pleiotropic Effects of Lipid-Modifying Interventions: Exploring Traditional and Emerging Hypolipidemic Therapies

  • Dimitris Kounatidis,
  • Nikolaos Tentolouris,
  • Natalia G. Vallianou,
  • Iordanis Mourouzis,
  • Irene Karampela,
  • Theodora Stratigou,
  • Eleni Rebelos,
  • Marina Kouveletsou,
  • Vasileios Stamatopoulos and
  • Eleni Tsaroucha
  • + 1 author

Atherosclerotic cardiovascular disease poses a significant global health issue, with dyslipidemia standing out as a major risk factor. In recent decades, lipid-lowering therapies have evolved significantly, with statins emerging as the cornerstone tr...

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Metabolites - ISSN 2218-1989