BACKGROUND AND OBJECTIVES

The demographic background, level of knowledge, and attitude of caregivers are pillars of care in dementia. Family and non-family members take on this role. Studies have been done on their knowledge and attitude, but none have focused on them during hospitalization, wherein greater stress is imposed on both the caregiver and the patient. This study aims to determine the profiles, and its association with knowledge, and attitudes of caregivers of hospitalized patients with dementia in a tertiary hospital in Metro Manila.

A single-center descriptive cross-sectional design using Demographic profile Questionnaire, Alzheimer’s Disease Knowledge Scale (ADKS), and Dementia Attitude Scale (DAS) were used on Filipino caregivers of inpatients with dementia in Metro Manila. Simple and multivariable linear regression were used to assess demographic factors in relation to the attitude and knowledge of the caregivers.

Eighteen females with a mean age of 49 (SD=8) years old participated. Ten participants completed college. Six (33.3%) of the respondents were family members, five (27.8%) were occupational caregivers, four (22.2%) were house-helps, and two (11.1%) were nurses. Majority (66%) had 3-10-year duration of caregiving. Mean score of knowledge scale is 21.17 out of 30. Age, education, caregiver role, and attitude were positively associated with knowledge. The mean score for attitude level is 119.83 out of 140. Age, education, duration, caregiving role, patient’s age, and knowledge were positively associated with attitude; with education being statistically significant (p=0.046).

Caregivers exhibited reasonable knowledge for such caregivers to carry out their duties on inpatients with dementia at an adequate level, with several factors correlating positively, indicating areas for improvement. Their attitude scores revealed positive disposition; with education emerging as statistically significant. Continuing education and targeted interventions can further enhance quality of caregiving.

RNA splicing is an essential cellular process in which a series of protein-nucleic acid complexes cut and splice the products of gene transcription to generate mature RNA， and it plays an important role in maintaining the normal life activities of cells. Extensive studies have shown that proteins and nucleic acids associated with RNA splicing undergo the pathological changes such as aggregation in neurodegenerative diseases， and inadequate RNA splicing is observed in lesions. Genetic alterations within RNA splicing-related genes can cause neurodegenerative diseases. All these findings suggest that abnormalities in RNA splicing pathways may play a significant role in the pathogenesis of neurodegenerative diseases. This article reviews the research advances in the alterations of RNA splicing in common neurodegenerative diseases in terms of histopathology， biochemistry， and genetics， as well as related cell biology and animal models， in order to clarify their role in the pathogenesis of neurodegenerative diseases.
Alzheimer Disease ; Parkinson Disease

Autonomic nervous system dysfunction is one of the most common non-motor symptoms of Parkinson disease（PD）， and orthostatic hypotension（OH） is one of the common features of autonomic nervous system dysfunction. OH and cognitive impairment are the most common non-motor symptoms of PD and can run through the whole course of the disease， and it remains unclear whether there is an association between these two non-motor symptoms. At present， a large number of studies have been conducted on the association between PD-OH and cognitive impairment abroad， but there are few similar studies in China. Therefore， this article summarizes the association between cognitive impairment and OH in PD， in order to provide a reference for the pathogenesis， treatment， and prevention of cognitive impairment in PD and brings new ideas for the treatment of cognitive impairment in PD.
Parkinson disease ; Dementia

INTRODUCTION

Dementia has been a public health concern for several years. As the population continuously ages, the prevalence of dementia is projected to significantly rise, thus governments will face an increasing demand for support services. Unfortunately, dementia is not recognized as a major public health concern in the Philippines. As the extent of the dementia epidemic needs to be further delineated in the Philippines, and research on dementia is still limited, a larger study is needed to provide more information about the disease burden. This will raise awareness and inform policy makers about the necessity of social and health care reform in dementia care.

We aimed to collect uniform data from patients with cognitive impairment and determine the frequency of dementia and mild cognitive impairment in the study population. These data are crucial for providing information to policy makers in the country.

This is a multi-center, prospective, observational, non-interventional study and standing database of patients clinically diagnosed with Mild Cognitive Impairment (MCI) or dementia seen at the participating training institutions. Corresponding anonymized data on demographics, medical history, risk factors, level of functional impairment, diagnosis, baseline cognitive scores and management will be collected from each patient and entered into the database using a secure online data collection tool. Collective data will be extracted, summarized and analyzed every year with oversight provided by the Philippine Neurological Association (PNA).

Approval from the ethics committees or institutional review boards (EC/IRB) was obtained from the Single Joint Research Ethics Board and all participating institutions.

The PNA1DB-Dementia initiative will be crucial in providing information to policy makers, to further enhance the implementation of the Mental Health Act. The dissemination of results will be conducted through scientific or public conferences and scientific journal publication.

NCT05484960; ClinicalTrials.gov.

Humans ; Alzheimer Disease ; Cross-Sectional Studies ; Creatine Kinase ; Brain/metabolism*

Background: Creutzfeldt-Jakob disease is a rapidly progressive, fatal, transmissible neurodegenerative disorder caused by a prion protein. It is characterized by cognitive decline, motor dysfunction, and eventually, death. It occurs globally with 1 case per one million population/year. And It is still considered rare in countries like the Philippines due to challenges in its diagnosis and the under recognition of its clinical features. As of now, the local prevalence or incidence of this disease in our country remains unknown, as only a single case report has been documented. As of now, the local prevalence or incidence of this disease in our country remains unknown, as only a single case report has been documented. Objective: To report a series of patients with probable sporadic CJD from a tertiary hospital in the Philippines. Materials and Methods: Patients with rapidly developing dementia fulfilling the diagnostic criteria for sCJD were included. All were investigated in detail to find out any possible treatable cause, including electroencephalography (EEG), magnetic resonance imaging (MRI) of the brain, and cerebrospinal fluid analysis. Results: A total of 3 patients with probable sCJD were diagnosed using the European diagnostic criterion from January 2022 to April 2023. The clinical features are consistent with other reported series. All 3 patients had the classical EEG findings, typical MRI features, and positive for 14-3-3 assay, and one was positive for RT-QuIC. Two patients died within 13 months from the disease onset. Conclusion This is the first reported case series of probable sCJD in the Philippines from a tertiary hospital in Metro Manila. Like in our patients, this disease should be considered in individuals with rapidly progressive dementia associated with myoclonus, neuropsychiatric symptoms, akinetic mutism, visual abnormality, and ataxia with signs of pyramidal and extra-pyramidal dysfunction. Although a definitive diagnosis must be histopathological, there are ancillary tests that are currently available that allow us to make a probable diagnosis of sCJD possible. Our study raises question about the prevalence of this disease in the Philippines which needs more validated studies from other parts of the country.
Creutzfeldt-Jakob Syndrome ; Neurodegenerative Diseases

Intermittent theta burst stimulation (iTBS), a time-saving and cost-effective repetitive transcranial magnetic stimulation regime, has been shown to improve cognition in patients with Alzheimer's disease (AD). However, the specific mechanism underlying iTBS-induced cognitive enhancement remains unknown. Previous studies suggested that mitochondrial functions are modulated by magnetic stimulation. Here, we showed that iTBS upregulates the expression of iron-sulfur cluster assembly 1 (ISCA1, an essential regulatory factor for mitochondrial respiration) in the brain of APP/PS1 mice. In vivo and in vitro studies revealed that iTBS modulates mitochondrial iron-sulfur cluster assembly to facilitate mitochondrial respiration and function, which is required for ISCA1. Moreover, iTBS rescues cognitive decline and attenuates AD-type pathologies in APP/PS1 mice. The present study uncovers a novel mechanism by which iTBS modulates mitochondrial respiration and function via ISCA1-mediated iron-sulfur cluster assembly to alleviate cognitive impairments and pathologies in AD. We provide the mechanistic target of iTBS that warrants its therapeutic potential for AD patients.
Humans ; Mice ; Animals ; Transcranial Magnetic Stimulation ; Alzheimer Disease/therapy* ; Cognitive Dysfunction/therapy* ; Cognition ; Sulfur ; Iron ; Iron-Sulfur Proteins ; Mitochondrial Proteins

The accumulation and spread of prion-like proteins is a key feature of neurodegenerative diseases (NDs) such as Alzheimer's disease, Parkinson's disease, or Amyotrophic Lateral Sclerosis. In a process known as 'seeding', prion-like proteins such as amyloid beta, microtubule-associated protein tau, α-synuclein, silence superoxide dismutase 1, or transactive response DNA-binding protein 43 kDa, propagate their misfolded conformations by transforming their respective soluble monomers into fibrils. Cellular and molecular evidence of prion-like propagation in NDs, the clinical relevance of their 'seeding' capacities, and their levels of contribution towards disease progression have been intensively studied over recent years. This review unpacks the cyclic prion-like propagation in cells including factors of aggregate internalization, endo-lysosomal leaking, aggregate degradation, and secretion. Debates on the importance of the role of prion-like protein aggregates in NDs, whether causal or consequent, are also discussed. Applications lead to a greater understanding of ND pathogenesis and increased potential for therapeutic strategies.
Humans ; Prions ; Neurodegenerative Diseases/pathology* ; Amyloid beta-Peptides ; Alzheimer Disease ; alpha-Synuclein ; tau Proteins ; Parkinson Disease

BACKGROUND

E-learning has emerged as a crucial technique that educators embrace and apply. Two effective e-learning materials are video-based learning (VBL) and e-book-based remote learning (EBRL). While several studies have proven their effectiveness, none have compared these e-learning materials, especially regarding caregivers’ knowledge of delirium, dementia, and depression (3Ds). Based on the extant literature, many caregivers are untrained and often lack the knowledge and skills to lessen the burden on delirious, demented, and depressed older adults. Hence, there is a growing need to explore how e-learning materials will address caregivers’ lack of knowledge about the 3Ds of geriatric psychiatry.

This study ascertained the effects of e-learning materials on caregivers’ knowledge about the 3Ds of geriatric psychiatry and determined significant differences within and between groups.

A three-arm, quasi-experimental study, which included 63 informal caregivers in Baguio City who met the inclusion criteria and were chosen through purposive sampling, was conducted. Data were gathered using the Delirium-related knowledge tool, the Bangladesh version of the Depression Literacy Questionnaire, and the Dementia Knowledge Assessment Tool version 2. Data collection was done face-to-face and was conducted from March to April 2023. Data were treated with descriptive and inferential statistics using means, paired t-test, one-way omnibus ANOVA, and the post hoc Scheffé’s test. Ethics approval was provided by the Saint Louis University Research Ethics Committee (SLU-REC-UG 2023-004).

All the pretest mean scores of respondents in the VBL, EBRL, and control groups increased in the posttest. Additionally, the paired t-test revealed that the VBL and EBRL materials significantly affected the caregivers’ knowledge about the 3Ds of geriatric psychiatry, evidenced by a t-statistic of -5.80 (p=0.00001) and -4.48 (p= 0.00023), respectively. Lastly, one-way ANOVA revealed that there was a statistically significant difference in mean scores between at least two groups (F(2,60) = [7.060], p=0.002). Post hoc analysis using Scheffé’s test for multiple comparisons found that the mean values significantly differed between the VBL and the waitlist control group (Scheffé=10.589), and between the EBRL and the waitlist control group (Scheffé=10.589). There was no statistically significant difference between the VBL and the EBRL groups (Scheffé=0).

This study suggests that informal caregivers in Baguio City are moderately knowledgeable about the 3Ds of geriatric psychiatry. Moreover, both VBL and EBRL materials showed effectiveness in improving caregivers’ knowledge about the 3Ds of geriatric psychiatry, highlighting the substantial equivalence of both materials. Lastly, caregivers’ knowledge about the 3Ds of geriatric psychiatry increases as they engage in e-learning materials. Thus, it is acknowledged that VBL and EBRL materials are valuable, cost-effective, and practical interventions in improving caregivers’ knowledge about the 3Ds of geriatric psychiatry.

BACKGROUND

Type 2 Diabetes Mellitus (T2DM) patients are predisposed to cognitive decline and dementia. The cooccurrence of the two diseases translate to a higher medical cost. Identification of factors contributing to cognitive impairment is warranted.

To determine the predictors of cognitive impairment among Filipino patients with Type 2 Diabetes Mellitus.

This is a cross-sectional analytical study involving Filipino patients diagnosed with T2DM in the outpatient clinic. A total of 171 patients were included and were screened using AD8-P tool.

A total of 171 adult patients were included and screened for cognitive impairment.19.3% were cognitively impaired, with mean age of 59.6 years old (vs. 55.5 years old, p < 0.029), and two-thirds were female. The mean duration of the patient’s diabetes was 11.2 years. After adjusting for confounders and multi-collinearity, the duration of diabetes was significantly associated with cognitive impairment with odds of developing cognitive impairment increasing as the duration reach 10 years above. Those with T2DM for at least ten years were 2.5 times more likely to develop cognitive impairment, holding the age constant. (OR = 2.5, 95% CI – 1.0 to 5.8, p < 0.043).

19.3% of Filipino patients with Type 2 Diabetes Mellitus in a tertiary government hospital are cognitively impaired and this can occur even in less than 65 years old. The ten years or longer duration of T2DM increases the risk of developing cognitive impairment by 2.5%.