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Introduction <p>Fatty acids (FAs) are essential for cellular structure, metabolism, and inflammatory regulation. This study investigated FA profiles in Crimean-Congo hemorrhagic fever (CCHF), a severe viral illness with high mortality rates, to explore their potential as disease progression and severity biomarkers.</p> Methods <p>190 participants were included in the study, comprising 115 CCHF-positive patients, 30 CCHF-negative patients, and 45 healthy controls. FA concentrations were analyzed via gas chromatography‒mass spectrometry (GC-MS).</p> Results <p>Statistically significant differences in specific FA levels were observed between the study groups. Compared with mild and moderate cases, severe cases showed distinctive FA profiles. Notably, higher omega-6/omega-3 ratios and linoleic acid to dihomo-γ-linolenic acid (LA/DGLA) ratios are associated with severe disease outcomes and poor prognosis and are correlated with inflammatory markers such as IL-6 and D-dimer. Pathway analysis was performed to identify disruptions in fatty acid biosynthesis and metabolism. Additionally, Cox regression analyses were conducted to determine key fatty acids associated with prognosis. Regression analyses identified several key fatty acids influencing prognosis, including myristic acid, phytanic acid, linoleic acid, gamma-linolenic acid, alpha-linolenic acid, oleic acid, behenic acid, cerotic acid, linoleic acid DGLA, omega-6 fatty acids, omega-9 fatty acids, and the omega-6/omega-3 ratio. Pathway analysis revealed that the disruptions in the most affected pathways were the biosynthesis of unsaturated fatty acids, α-linolenic acid metabolism, elongation, degradation, arachidonic acid metabolism, and fatty acid biosynthesis in CCHF pathogenesis.</p> Conclusion <p>This study highlights significant alterations in fatty acid metabolism and laboratory markers in CCHF. These findings provide insights into the pathophysiology of this disease and may guide future research on targeted therapeutic strategies.</p>

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Decoding blood fatty acids in Crimean-Congo hemorrhagic fever

  • 期刊论文

  • 发表日期：

    2025年8月29日

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  • Serkan Bolat,
  • Seyit Ali Büyüktuna,
  • Serra İlayda Yerlitaş,
  • Hayrettin Yavuz,
  • Gözde Ertürk Zararsız,
  • Meltem Kurt Yenihan,
  • Merve Gülşah Lafçı,
  • Ertuğrul Keskin,
  • Yasemin Çakır Kıymaz,
  • Gökmen Zararsız,
  • Halef Okan Doğan

摘要

Introduction

Fatty acids (FAs) are essential for cellular structure, metabolism, and inflammatory regulation. This study investigated FA profiles in Crimean-Congo hemorrhagic fever (CCHF), a severe viral illness with high mortality rates, to explore their potential as disease progression and severity biomarkers.

Methods

190 participants were included in the study, comprising 115 CCHF-positive patients, 30 CCHF-negative patients, and 45 healthy controls. FA concentrations were analyzed via gas chromatography‒mass spectrometry (GC-MS).

Results

Statistically significant differences in specific FA levels were observed between the study groups. Compared with mild and moderate cases, severe cases showed distinctive FA profiles. Notably, higher omega-6/omega-3 ratios and linoleic acid to dihomo-γ-linolenic acid (LA/DGLA) ratios are associated with severe disease outcomes and poor prognosis and are correlated with inflammatory markers such as IL-6 and D-dimer. Pathway analysis was performed to identify disruptions in fatty acid biosynthesis and metabolism. Additionally, Cox regression analyses were conducted to determine key fatty acids associated with prognosis. Regression analyses identified several key fatty acids influencing prognosis, including myristic acid, phytanic acid, linoleic acid, gamma-linolenic acid, alpha-linolenic acid, oleic acid, behenic acid, cerotic acid, linoleic acid DGLA, omega-6 fatty acids, omega-9 fatty acids, and the omega-6/omega-3 ratio. Pathway analysis revealed that the disruptions in the most affected pathways were the biosynthesis of unsaturated fatty acids, α-linolenic acid metabolism, elongation, degradation, arachidonic acid metabolism, and fatty acid biosynthesis in CCHF pathogenesis.

Conclusion

This study highlights significant alterations in fatty acid metabolism and laboratory markers in CCHF. These findings provide insights into the pathophysiology of this disease and may guide future research on targeted therapeutic strategies.