A Graphene Far-infrared Intervention Study of Cognitive Status in Older Adults

N/AActive Not RecruitingNCT06843824

Institute of Psychology, Chinese Academy of Sciences120 enrolled

Overview

This study is a 4-week group controlled trial to explore whether graphene far-infrared intervention can improve the cognitive status of older adults presenting with symptoms of Subjective Cognitive Decline (SCD), Mild Cognitive Impairment (MCI), or Alzheimer's Disease (AD), and is dedicated to enhancing the cognitive status of older adults and improving their mental health. Participants were older adults who presented with cognitive problems. Participants were divided into SCD and MCI/AD groups based on their cognitive level, and each group was further divided into a graphene far-infrared intervention group and a placebo control group. We also measured the depression and anxiety levels of the older adults and incidentally observed whether the graphene far-infrared intervention could have a positive impact on their mental health outcomes, which was not the focus of our study.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

OTHER

Masking

DOUBLE

Enrollment

120

Conditions

Mild Cognitive Impairment (MCI)Subjective Cognitive Decrease (SCD)Alzheimer's Disease(AD)

Interventions

a custom-made graphene therapy capDEVICE

The GFII involved the use of a custom-made graphene therapy cap. The cap consisted of 3 parts: the main body of the cap, the thermostat and the power adapter. One end of the thermostat was connected to the main body of the cap, and the other end was connected to the power adapter; the adapter was plugged into a 220 V household power outlet. This turned on the cap, and the temperature could be adjusted. The light energy conversion rate of the graphene coating material used in the cap reached 90%, generating a temperature of 40 °C. Five caregivers were responsible for providing care for the elderly individuals. We will provided standardized training on the GFII to their caregivers. Each caregiver was responsible for assisting with the intervention of the elderly individuals that they usually cared for.

A regular cap that generates heatDEVICE

The rest of the procedure is the same as the GFII group, but the cap used is a regular cap that can heat up to 40°C.

Outcomes

Primary Outcomes

SCD

Depression was assessed by the Self-Rating Scale for Subjective Cognitive Decrease (SCD). The scale consists of 10 items that are scored from 1 (no change) to 3 (significant increase) based on the patient's self-reported subjective cognitive decompensation. A higher total score indicates more severe subjective cognitive decompensation.

Time frame: Pre-intervention, 2 weeks after the start of the intervention, 4 weeks after the start of the intervention (at which point the intervention ended), 2 weeks after the end of the intervention, and 4 weeks after the end of the intervention (a total of 5 mea

MCI/AD

Cognitive function was assessed with the short form of the Montreal Cognitive Assessment (s-MoCA). The items are used to examine function in 6 cognitive domains (i.e., visuospatial/executive function, attention, language, abstraction, delayed memory, and orientation). If the number of years of education is less than or equal to 12, the total score is increased by 1 point. The total score ranges from 0 to 18: scores less than or equal to 11 indicate probable mild cognitive impairment (MCI), and scores less than or equal to 4 indicate probable Alzheimer's disease (AD).

Secondary Outcomes

depression

Depression was assessed with the Patient Health Questionnaire (PHQ-9). The PHQ-9 contains nine items scored on a scale from 0 (not at all) to 3 (almost every day) based on the self-reported frequency of depressive symptoms in the past 2 weeks. The total score ranges from 0 to 27, and scores above 10 indicate probable depression symptoms.

Anxiety

Anxiety was assessed with the Chinese version of the Generalized Anxiety Disorder Scale (GAD-7). The 7 items are rated on a 4-point scale ranging from 0 (never) to 3 (almost every day) to assess the frequency of anxiety symptoms in the past 2 weeks. The total score ranges from 0 to 21, and according to the established criteria, scores above 10 indicate probable anxiety symptoms.