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Open research questions in Metabolomics and Mass Spectrometry Studies

686 gap statements mined from Metabolomics and Mass Spectrometry Studies papers in our 7.9M-paper local library, which holds 2,554 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • Collectively, these considerations indicate that further investigation is warranted to determine the utility of sub-3 µm PGC stationary phases for additional metabolite classes and specialized metabolites that remain poorly covered by mainstream metabolomics platforms. While this aspect was not investigated experimentally, we tried to maximize column lifetime avoiding co-extraction of lipids.

    Sub-3 μm porous graphitic carbon for highly polar metabolomics: orthogonal selectivity and comparison with HILIC and reversed-phase chromatography · 2026 · DOI

  • Finally, the lack of standardisation in metabolomic data acquisition, processing and analysis limits reproducibility and comparability between studies.

    Metabolomics in Early-Phase Clinical Trials from 2010 to 2025 · 2026 · DOI

  • Metabolomics provides a powerful tool to study PA-related metabolic adaptations, but how habitual PA shapes the metabolome in childhood remains poorly characterized.

    Metabolomic Signatures of Habitual Physical Activity in Childhood · 2026 · DOI

  • Physical activity (PA) supports health across the life course, yet the biological pathways linking habitual PA to long-term health remain incompletely understood.

    Metabolomic Signatures of Habitual Physical Activity in Childhood · 2026 · DOI

  • The study notes that circulating NMR metabolite signatures require rigorous statistical assessment before clinical interpretation. The study highlights the need for age-adjusted analysis to account for age differences in the cohort. The study identifies the lack of comprehensive adjustment for residual confounding factors, such as treatment status and fasting status.

    Decreased Circulating Glutamine and Myo-Inositol in Cervical Cancer: Exploratory NMR Metabolomics and Internal Discrimination Using Their Additive Feature (MQ) · 2026 · DOI

  • However, due to the complexity of the biochemical system within high-temperature Daqu, the underlying mechanisms of microbial interactions, the synthetic pathways of volatile compounds, and their interrelationships remain unclear.

    Revealing the Differences in Microbial Community and Quality of High-Temperature Daqu in the Southern Sichuan–Northern Guizhou Region · 2025 · DOI

  • Economic implications of implementing precision medicine are also not explored, which is crucial for assessing real-world applicability. The necessity and value of such complexity for diabetes management remain uncertain.

    Harnessing Pharmacomultiomics for Precision Medicine in Diabetes: A Comprehensive Review · 2025 · DOI

  • While the specific pathways contributing to such disorders remain to be fully elucidated, it is known that PAG is structurally similar to catecholamines and can activate adrenergic receptors (Huynh, 2020).

    Serum metabolome indicators of early childhood development in the Brazilian National Survey on Child Nutrition (ENANI-2019) · 2025 · DOI

  • Future research should focus on developing optimized extraction and purification methodologies—guided by our metabolomic data—to either (1) selectively remove the hazardous unsaturated PAs while retaining active constituents, or (2) isolate the abundant, likely non-toxic saturated PAs (like Thesinine) for individual assessment.

    An Integrated Systems Pharmacology Approach Combining Bioinformatics, Untargeted Metabolomics and Molecular Dynamics to Unveil the Anti-Aging Mechanisms of Tephroseris flammea · 2025 · DOI

  • Future work will explore the integration of spatial and multi-modal data to further improve diagnostic accuracy and broaden the model’s clinical relevance across diverse cancer types. Its performance held strong even in reduced-data scenarios, highlighting its robustness and potential for real-world clinical deployment where labeled data is often limited.

    Application of Foundation Models for Colorectal Cancer Tissue Classification in Mass Spectrometry Imaging · 2025 · DOI

  • Although changes in lipid metabolites have been observed in people with MDD, most relevant studies focus on adults, with limited research on adolescents.

    Association Between Abnormal Plasma Lipid Metabolism and Psychological Characteristics in Adolescents With Major Depressive Disorder · 2025 · DOI

  • Major depressive disorder (MDD) in adolescents is a significant global public health issue, yet its pathophysiological mechanism remains unclear.

    Association Between Abnormal Plasma Lipid Metabolism and Psychological Characteristics in Adolescents With Major Depressive Disorder · 2025 · DOI

  • Traditional lipid analysis lacks details on lipid composition and structure. There is a need for a comprehensive lipidomic workflow for studying lipids in soft cheese. The optimal solvents for MAE cannot always be deduced directly from those used in conventional procedures.

    Microwave-Assisted Extraction/UHPLC-Q-Orbitrap-MS-Based Lipidomic Workflow for Comprehensive Study of Lipids in Soft Cheese · 2024 · DOI

  • The need for a reliable method for detecting P. somerae in bladder cancer patients. The lack of understanding of the role of P. somerae in bladder cancer. The need for further research on the correlation between P. somerae and bladder cancer.

    Insights into Porphyromonas somerae in Bladder Cancer Patients: Urinary Detection by ddPCR · 2024 · DOI

  • Introduction Metabolic syndrome (MetS) is defined by the World Health Organization (WHO) as a cluster of disorders characterized by insulin resistance accompanied by multiple abnormalities such as abdominal obesity, dyslipidemia, hypertension and hyper‑ glycemia (1).

    Artemisinin and its derivatives for metabolic syndrome: From multi‑target mechanisms to translational opportunities (Review) · 2026 · DOI

  • Matrix effects cannot yet be fully eliminated, and commonly used pretreatment strategies, such as solid-phase extraction and QuEChERS, show limited selectivity toward novel trace metabolites and structural isomers.

    Metabolomics-Driven Insights into Rice Wine Fermentation: From Descriptive Profiling to Intelligent Process Control · 2026 · DOI

  • The lipid risk score's ability to improve prediction of 15-year incident diabetes past sociodemographic, behavioral, and clinical covariates was limited to the training set.

    Plasma lipidomics and 15-year risk of incident diabetes: a coronary artery risk development in young adults study · 2026 · DOI

  • Metabolomics has shown extensive applications for diagnosing and treating tumours but it is most often used in isolation and is not always integrated with other profiling modalities, such as spatial omics or proteomics. Further advances in metabolomics and computational techniques will allow for a more holistic understanding of tumour biology.

    Harnessing the Power of Metabolomics for Precision Oncology: Current Advances and Future Directions · 2025 · DOI

  • The study had to account for multiple comparisons. The analysis on incident diabetes was limited to participants who were free from diabetes at baseline. The study had to adjust for various covariates, including age, sex, education, smoking status, and physical activity.

    Branched-Chain and Aromatic Amino Acids, Type 2 Diabetes, and Cardiometabolic Risk Factors among Puerto Rican Adults · 2024 · DOI

  • The accuracy of metabolite identification and screening of quality control markers remain the bottlenecks in LC-MS analysis. LC-MS cannot distinguish isomers and suffers from in-source fragmentation interference. The technique relies on inaccurate online database matching of precursor ions.

    An Efficient Workflow for Quality Control Marker Screening and Metabolite Discovery in Dietary Herbs by LC-Orbitrap-MS/MS and Chemometric Methods: A Case Study of Chrysanthemum Flowers · 2024 · DOI

  • Choosing the appropriate analytical technique (MS or NMR) depends on the analyte’s characteristics and the study’s specific goals, considering each method’s distinct features, benefits, and limitations. These techniques generate vast volumes of high-quality data requiring comprehensive analyses and processing.

    Metabolomics and Proteomics in Prostate Cancer Research: Overview, Analytical Techniques, Data Analysis, and Recent Clinical Applications · 2024 · DOI

  • In this review, we present major challenges and recent advances, from sample collection to data analysis and interpretation, to facilitate the implementation of targeted metabolomics and lipidomics in clinical research. This progress also holds significant potential for application in precision medicine.

    Advancements in Mass Spectrometry-Based Targeted Metabolomics and Lipidomics: Implications for Clinical Research · 2024 · DOI

  • Studies on associations between BCAAs/AAAs and T2D and cardiometabolic traits in Hispanic populations are limited - Most metabolomic studies were conducted in populations of European or Asian ancestry - The analysis on incident diabetes was limited to 316 participants who were free from diabetes…

    Branched-Chain and Aromatic Amino Acids, Type 2 Diabetes, and Cardiometabolic Risk Factors among Puerto Rican Adults · 2024 · DOI

  • Limited number of participants (14 human subjects), - Short duration of the intervention period (30 days), - No long-term…

    Polyphenol-Rich Aronia melanocarpa Fruit Beneficially Impact Cholesterol, Glucose, and Serum and Gut Metabolites: A Randomized Clinical Trial · 2024 · DOI

  • Further studies with larger sample sizes and longer intervention periods, - Investigation of the effects of Aronia consumption on other health outcomes, - Examination of the mechanisms by which Aronia exerts…

    Polyphenol-Rich Aronia melanocarpa Fruit Beneficially Impact Cholesterol, Glucose, and Serum and Gut Metabolites: A Randomized Clinical Trial · 2024 · DOI

Most-cited papers in Metabolomics and Mass Spectrometry Studies

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Open questions raised by papers listed on this page include: (1) The lack of standardisation in metabolomic data acquisition, processing and analysis limits reproducibility and comparability between studies (“Metabolomics in Early-Phase Clinical Trials from 2010 to 2025”, 2026); (2) Physical activity (PA) supports health across the life course, yet the biological pathways linking habitual PA to long-term health remain incompletely understood (“Metabolomic Signatures of Habitual Physical Activity in Childhood”, 2026); (3) The study identifies the lack of comprehensive adjustment for residual confounding factors, such as treatment status and fasting status (“Decreased Circulating Glutamine and Myo-Inositol in Cervical Cancer:…”, 2026); (4) Due to the complexity of the biochemical system within high-temperature Daqu, the underlying mechanisms of microbial interactions, the synthetic pathways of volatile compounds, and their interrelationships remain unclear (“Revealing the Differences in Microbial Community and Quality of…”, 2025); (5) Future work will explore the integration of spatial and multi-modal data to further improve diagnostic accuracy and broaden the model’s clinical relevance across diverse cancer types (“Application of Foundation Models for Colorectal Cancer Tissue Classification in…”, 2025). 686 gap statements have been mined from Metabolomics and Mass Spectrometry Studies papers in our 7.9M-paper local library, which holds 2,554 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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