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According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
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Polyprotic acids of the type H2M constitute two ionizable protons. As a result, on titration with a base, they exhibit two equivalence points in the titration curve. During titration, the species H2M, HM−, and M2− will be present in the solution at different points. The fractions of H2M, HM−, and M2− present at the various instances of the titration are denoted by α0, α1, and α2, respectively.
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Chemical reactions, such as those that occur when you light a match, involve changes in energy as well as matter.
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Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
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Amines can behave as Brønsted–Lowry bases by accepting a proton from the acid to form corresponding conjugate acids. Due to a lone pair of nonbonding electrons, aliphatic amines can also act as Lewis bases by forming a covalent bond with an electrophile.
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Basic signal operations include time reversal, time scaling, time shifting, and amplitude transformations. These operations are fundamental in signal processing and analysis.
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A Gut-on-a-Chip Model to Study the Gut Microbiome-Nervous System Axis
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Composición y función del microbioma intestinal: de la ómica básica a la medicina de precisión

Yan Ma1, Lamei Wang1, Haitao Hu1

  • 1College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.

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|January 28, 2026
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Resumen

El microbioma intestinal influye en la salud del huésped, regulando el metabolismo y la inmunidad. Los avances integran la genómica del microbioma y del huésped para la medicina de precisión, permitiendo tratamientos dirigidos para enfermedades como el cáncer y las afecciones neurodegenerativas.

Palabras clave:
salud y enfermedadinteracciones huésped-microbiomicrobioma humanometagenómicaenfoques multi-ómicos

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Área de la Ciencia:

  • Investigación del Microbioma
  • Genómica
  • Medicina Traslacional

Sus antecedentes:

  • El microbioma intestinal, que comprende las comunidades microbianas y sus productos, regula críticamente el metabolismo, la inmunidad y las funciones neuroendocrinas del huésped.
  • La comprensión de las interacciones microbioma-huésped es vital debido a la influencia sistémica del microbioma en la salud.
  • Los avances recientes resaltan la necesidad de integrar los datos del microbioma con la genómica del huésped.

Objetivo del estudio:

  • Proporcionar una visión sistemática de los avances recientes en las interacciones microbioma-huésped.
  • Integrar la composición, función y genética del microbioma con la genómica del huésped.
  • Explorar la tubería tecnológica desde la investigación básica hasta las aplicaciones clínicas.

Principales métodos:

  • Revisión de una tubería tecnológica que incluye modelos in vitro e in vivo.
  • Técnicas como la edición CRISPR de bacterias individuales, el co-cultivo de organoides-microbioma y los modelos animales humanizados.
  • Aplicación de multi-ómicas, aprendizaje automático e inferencia causal para el diseño personalizado de probióticos.

Principales resultados:

  • La integración de la genómica del microbioma y del huésped ofrece una visión integral de sus interacciones.
  • Una tubería tecnológica facilita la traducción de la investigación del microbioma en estrategias clínicas.
  • Desarrollo de estrategias de intervención de precisión basadas en asociaciones del microbioma.

Conclusiones:

  • La investigación interdisciplinaria es clave para transformar las ideas del microbioma en aplicaciones clínicas dirigidas.
  • Las intervenciones de precisión del microbioma prometen tratar el cáncer, las enfermedades metabólicas y neurodegenerativas.
  • Este enfoque sienta las bases para una nueva generación de medicina de precisión.