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Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
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The human gastrointestinal (GI) tract is characterized by distinct physicochemical conditions that shape its microbial communities. Among these, the stomach presents a particularly challenging environment for microbial colonization due to its highly acidic pH, ranging from 1 to 3. This extreme acidity effectively limits microbial density. However, certain acid-tolerant microorganisms are capable of surviving in this niche. Notably, Helicobacter pylori can colonize the gastric mucosa,...
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El análisis integrador de la microbiota intestinal y las vías metabólicas revela alteraciones microbianas y

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  • 1Department of Gastroenterology and Hepatology, University Hospital of Zürich, Zürich, Switzerland.

Scientific reports
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Resumen

La diabetes mellitus tipo 2 (DMT2) está relacionada con alteraciones significativas del microbioma intestinal. Los individuos diabéticos muestran una mayor diversidad microbiana y vías metabólicas alteradas, lo que sugiere nuevos objetivos terapéuticos para la salud metabólica.

Palabras clave:
Diabetes y otras enfermedadesLa microbiota intestinalAnálisis LEfSeLas vías metabólicasMetabolomíaDiversidad microbiana

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Área de la Ciencia:

  • Microbiología
  • Metabolomía
  • Salud humana

Sus antecedentes:

  • La diabetes mellitus tipo 2 (DMT2) está cada vez más relacionada con la microbiota intestinal y la desregulación de las vías metabólicas.
  • Comprender estas conexiones es crucial para desarrollar nuevas estrategias terapéuticas.

Objetivo del estudio:

  • Investigar las diferencias en la diversidad microbiana intestinal, la composición y los perfiles metabólicos entre los individuos con y sin DM2.
  • Identificar taxones microbianos específicos y vías metabólicas asociadas con el DM2.

Principales métodos:

  • Secuenciación de genes de ARNr 16S para el análisis de la composición microbiana.
  • Análisis metabólicos para el perfil de metabolitos de moléculas pequeñas.
  • Análisis de coordenadas principales (PCoA) y tamaño de efecto del análisis discriminante lineal (LEfSe) para la interpretación de los datos.

Principales resultados:

  • Los individuos diabéticos exhibieron una mayor diversidad y uniformidad microbiana.
  • Aumento de la abundancia relativa de Bacteroidaceae y Lachnospiraceae en el grupo diabético.
  • Las vías metabólicas enriquecidas en los diabéticos incluyen el metabolismo de los ácidos grasos, la homeostasis de la glucosa, el metabolismo de los ácidos biliares y la biosíntesis de aminoácidos.

Conclusiones:

  • La DM2 está asociada con alteraciones significativas del microbioma intestinal y trastornos metabólicos funcionales.
  • Los taxones microbianos específicos y las vías metabólicas pueden servir como biomarcadores para la DM2.
  • Estos hallazgos ponen de relieve los objetivos microbianos potenciales para mejorar la salud metabólica en pacientes con DM2.