Investigating Non-celiac Wheat Sensitivity: A Comprehensive Review of Pathophysiology Underlying Clinical...

Area of Science:

• Gastroenterology and Immunology
• Clinical Nutrition
• Microbiome Research

Background:

• Non-celiac wheat sensitivity (NCWS) presents with diverse symptoms upon wheat ingestion, distinct from celiac disease and wheat allergy.
• Pathophysiology involves gut barrier dysfunction, dysbiosis, immune activation, and neuroimmune pathways, but these are not unique to NCWS.
• Non-gluten wheat components, gut microbiota, and neuro-immune interactions are implicated in symptom exacerbation and hypersensitivity.

Purpose of the Study:

• To review recent advances in understanding NCWS pathophysiology.
• To discuss clinical implications for diagnosis and management.
• To identify key areas for future research.

Main Methods:

• Comprehensive literature review of recent studies on NCWS.
• Synthesis of information on pathophysiology, diagnosis, and management.
• Analysis of emerging evidence on wheat components, microbiome, and neuro-immune interactions.

Main Results:

• NCWS pathophysiology is multifactorial, involving gut alterations and immune responses, with emerging roles for non-gluten components and dysbiosis.
• Diagnosis relies on exclusion and symptom-response criteria (Salerno Experts' Criteria) due to lack of biomarkers.
• Management focuses on dietary changes (wheat-free, low-FODMAP) and microbiome modulation, with a need for personalized approaches.

Conclusions:

• Understanding NCWS requires a multidisciplinary approach due to its complex pathophysiology and wide-ranging symptoms.
• Personalized dietary interventions are crucial to balance symptom management with nutritional needs and quality of life.
• Further research is needed to identify biomarkers and refine therapeutic strategies for NCWS.