About this trial
To test the effects of 6 month additional intervention of ORIENT diet versus usual medical treatment for Intracranial / Carotid Stenosis on cognitive decline, multi-mode MRI image markers and serum and fecal biomarkers in a randomized controlled trial of 120 patients with intracranial / carotid stenosis, who are aged older than 40 years and without dementia.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients aged ≥ 40 years
≥ 50% stenosis in unilateral intracranial / carotid artery
Written informed consent available
Willingness to complete all assessments and participate in follow-up
Disqualifiers
Previous history of major head trauma and any intracranial surgery
Intracranial abnormalities, such as intracerebral hemorrhage, subarachnoid hemorrhage and other space occupying lesions
Extrapyramidal symptoms or mental illness which may affect neuropsychological measurement
Severe loss of vision, hearing, or communicative ability
Trial design
Parallel
Treatments tested in this trial
Usual Diet advice
BehavioralThe usual diet advice include recommendations in guidelines, such as reducing salt and limiting alcohol consumption
Oriental Intervention for Enhanced Neurocognitive Health (ORIENT) diet
BehavioralThe ORIENT diet has the same basic components of the Dietary Approaches to Stop Hypertension (DASH), Mediterranean and MIND diets, but uniquely adjusting some of components according to the evidence derived from Asian prospective cohorts and the Chinese eating habits.
Treatment groups
Trial outcomes
Primary outcomes
Global cognitive function change assessed with Z-score of a modified National Institute of Neurological Disorders and Stroke and Canadian Stroke Network-Canadian Stroke Network (NINDS-CSN) protocol
Primary Outcome
Secondary outcomes
Cognitive domain change assessed with NINDS-CSN protocol, including working memory, executive function, language, visual motor speed, visual spatial function, memory and recognition
short-term secondary outcome
Cognitive function change assessed by Montreal Cognitive Assessment (minimum value = 0, maximum value = 30, and higher scores mean a better outcome)
short-term secondary outcome
Changes in functional network-related characteristics assessed by functional magnetic resonance imaging (fMRI), including intra- and inter-network connectivity, graph theory, and dynamic functional connectivity
short-term secondary outcome
Changes in white matter hyperintensity (WMH) assessed on MRI with T2-Fluid-Attenuated-Inversion-Recovery (FLAIR) sequence
short-term secondary outcome
Sponsors and contacts
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