Clinical Scorecard: The Role of the Lactate-HCAR1 Pathway in Exercise Psychiatry: A Potential Mechanism Connecting Bone Marrow-Brain Immunity to Inflammation-Induced Depression

At a Glance

Key Highlights

• Exercise is an effective intervention for depression, with varying biological mechanisms.
• Lactate is proposed as a dynamic immunometabolic signal during exercise.
• The lactate-HCAR1 pathway may connect exercise to immune regulation and inflammation-related depressive symptoms.
• Inflammation-related depression includes diverse profiles with different inflammatory and metabolic markers.
• Future studies should validate the lactate-informed exercise prescription framework.

Guideline-Based Recommendations

Diagnosis

• Consider inflammation-related depression as a heuristic concept for patient stratification.

Management

• Exercise prescription should consider lactate kinetics and inflammatory biomarkers.

Monitoring & Follow-up

• Monitor symptom dimensions and biological responses to exercise interventions.

Risks

• Ongoing lactate irregularities may indicate metabolic stress or inflammation.

Patient & Prescribing Data

Patients with major depression and elevated inflammatory markers.

Lactate-informed exercise prescription is a testable hypothesis requiring further validation.

Clinical Best Practices

• Integrate exercise as a central focus in the treatment of depression.
• Utilize a cross-organ model to understand the effects of exercise on mood and inflammation.

Related Resources & Content

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