An in-person survey of the influence of the COVID-19 pandemic on physical function, functional capacity, cognitive function, and mental health among community-dwelling older adults in Japan from 2016 to 2022.

BACKGROUND: The COVID-19 outbreak might have had several effects on older adults; however, much of the previous research only included self-report, cross-sectional, and online-survey data in the early stage of the pandemic. We conducted a face-to-face survey before and after the COVID-19 pandemic and investigated the influence of the pandemic on several functions to distinguish between changes due to aging and changes due to the pandemic using a linear mixed model. METHODS: A total of 8 longitudinal surveys were conducted from 2016 to 2022. Physical function was assessed by weight, body mass index, body fat percentage, skeletal muscle mass index, calf circumference, grip strength, knee extension strength, the 5-times chair stand test, the timed up & go test and 5-m walking test. Functional capacity was measured using the Tokyo Metropolitan Institute of Gerontology index of competence, cognitive function was measured using the Trail Making Test - A, and mental health was measured using the Geriatric Depression Scale. RESULTS: Of a total of 73 participants, 51 (69.9%) were female. The mean age at first participation was 71.82 years (SD = 4.64). The results of the linear mixed model showed that lower-limb muscle strength and body fat percentage and cognitive function changed significantly before and after the pandemic, while grip strength, functional capacity, and mental health did not. CONCLUSIONS: The changes in these functions between before and after the pandemic might be attributed to the diminished opportunities for the independent older individuals to go out and engage in activities. Although functional capacity did not change, lower-limb muscle strength is important for functional independence. This decline might influence the functional capacity of these individuals in the future.

Work productivity loss and work-related factors during the first wave of the COVID-19 pandemic: A cross-sectional web-based survey.

BACKGROUND: The COVID-19 pandemic could have led to a technological revolution however it has caused work productivity loss, especially among people working from home. OBJECTIVE: This study examined the frequency and related factors of work productivity loss, focusing on work-related factors, during the first wave of the COVID-19 pandemic in Japan. METHODS: We conducted a cross-sectional, web-based survey of Japanese workers. Questionnaires were distributed using snowball sampling through e-mail and social networking sites. RESULTS: Of the respondents, 708 non-medical workers reported subjective work productivity loss during the first wave of the pandemic, compared with before. A multiple regression analysis showed that living with preschool-age children, having poor mental health, not using video conferencing solutions, and increased e-mail communication were related to work productivity loss. A subgroup analysis of those working from home showed similar variables associated with work productivity loss. CONCLUSIONS: More than 70% of workers in Japan experienced work productivity loss during the first wave of the pandemic. Moreover, factors such as time-consuming tasks or background distractions might lead to operational inefficacy.

Symptoms and risk factors of depression and PTSD in the prolonged COVID-19 pandemic: a longitudinal survey conducted from 2020 to 2022 in Japan.

BACKGROUND: The present study aimed to explore changes in depression and posttraumatic stress disorder (PTSD) among the general population during the prolonged COVID-19 pandemic and to investigate risk factors and adaptive/nonadaptive strategies. METHODS: A web-based longitudinal survey was conducted across five timepoints from 2020 to 2022 in Japan. Depressive symptoms were measured using the Patient Health Questionnaire-9 (PHQ-9), PTSD was measured using Impact of Event Scale-Revised (IESR), and coping strategies were measured using Brief Coping Orientation to Problems Experienced (Brief COPE). Higher scores of PHQ-9 and IESR indicate more symptoms and Higher score of Brief COPE indicate that these means of coping are used very frequently. RESULTS: A total of 1,366 participants (mean age = 52.76, SD = 15.57) were analyzed. Regarding levels of depression, PHQ-9 scores in 2022 were lower than in 2020 and 2021 (all p < 0.01). Regarding levels of PTSD, IESR scores in 2022 were lower than in 2021 among females (p < 0.001). Being younger (ß = -0.08 and - 0.13, both p < 0.01) and engaging in self-blame (ß = 0.12 and 0.18, both p < 0.01) increased PHQ-9 scores regardless of sex. For males, not working (ß = 0.09, p = 0.004) and having suffered an economic impact (ß = 0.07, p = 0.003) were risk factors for depressive symptoms, and active coping (ß = -0.10, p = 0.005) was associated with decreased depressive symptoms. For females, substance use (ß = 0.07, p = 0.032) and behavioral disengagement (ß = 0.10, p = 0.006) increased depressive symptoms, and females did not show strategies that decreased the symptoms. CONCLUSIONS: Levels of depression might have increased in the early stages of the pandemic and decreased in January 2022. Although males need to improve their economic situation to decrease depressive symptoms, adaptive strategies might be difficult to identify due to the prolonged pandemic among both sexes. In addition, the pandemic might be a depressive event but not a traumatic event among the general population, at least in Japan.

Health care providers' perspectives on providing end-of-life psychiatric care in cardiology and oncology hospitals: a cross-sectional questionnaire survey.

BACKGROUND: Psychological distress is a major concern for patients with end-stage heart failure (HF). However, psychiatric care for patients with HF is not as organized as that for patients with cancer. Therefore, the aim of this study was to elucidate and compare the barriers faced by health care providers of cardiology and oncology hospitals in providing end-of-life psychiatric care to patients with HF and cancer, respectively. METHODS: We conducted a cross-sectional questionnaire survey among the health care providers of Japan. Questionnaires were mailed to physicians and nurses of 427 cardiology and 347 oncology hospitals in March 2018 to assess health care providers' perspectives. First, we compared the scores of the Palliative Care Difficulties Scale and the original scale of end-of-life psychiatric care difficulties between health care providers of cardiology and oncology hospitals. Second, we asked the health care providers to describe the barriers to providing end-of-life psychiatric care with an open-ended question and then compared the freely-provided descriptions using content analysis. RESULTS: A total of 213 cardiology and 224 oncology health care providers responded to the questionnaire. No significant differences were found between health care providers of cardiology and oncology hospitals in the frequency of experiencing barriers to providing end-of-life psychiatric care (59.8% and 62.2%, respectively). A content analysis identified the following eight barriers: "patients' personal problems," "family members' problems," "professionals' personal problems," "communication problems between professionals and patients," "problems specific to end-of-life care," "problems specific to psychiatric care," "problems of institution or system," and "problems specific to non-cancer patients." The "problems specific to noncancer patients" was described more frequently by health care providers in cardiology hospitals than that in oncology hospitals. However, there were no significant differences in other items between the two. CONCLUSION: Although health care providers of both cardiology and oncology hospitals faced barriers to providing end-of-life psychiatric care, those of cardiology hospitals particularly faced challenges pertaining to non-cancer patients, such as unpredictability of prognosis or insufficiency of guideline development. A system of psychiatric care, specifically for patients with HF, should be established.

Age-related differences in depressive symptoms and coping strategies during the COVID-19 pandemic in Japan: A longitudinal study.

OBJECTIVE: The coronavirus 2019 (COVID-19) pandemic has particularly influenced the mental health of younger adults; accordingly, this study investigated age-related factors related to mental health and provided suggestions related to mental health recovery. METHODS: A web-based longitudinal survey was conducted from 2020 to 2021 in Japan. The survey consisted of the Patient Health Questionnaire-9 (PHQ-9), used to measure depressive symptoms as a response variable, and an anger questionnaire and coping strategy scale to assess explanatory variables. RESULTS: A total of 1468 participants were analyzed (valid response rate = 54.2%); 368 were younger adults (age range = 20-39), 667 were middle-aged adults (age range = 40-64), and 433 were aged adults (age range = 65-79). The PHQ-9 scores in the younger adults worsened over the three survey timepoints. State anger was strongly related to PHQ-9 scores in all age groups (standardized beta = 0.39-0.47), and state anger in the younger group was highest at all survey times, In the younger group, only nonadaptive coping strategies were related to PHQ-9 scores. Emotional support, venting, and humor adaptive strategies used by middle-aged and aged adults were most commonly used by younger adults; however, there were no significant relationships of these strategies with PHQ-9 scores in the younger group. CONCLUSION: The level of depressive symptoms among the younger adults might be considerably worse than the middle-aged and aged adult. The younger adults might not make use of strategies, hence, they might need advice and skill training of strategies.

The influence of ageism on stereotypical attitudes among allied health students in Japan: a group comparison design.

BACKGROUND: Ageism is a serious problem in medical care. The importance of ageism-related education for students has been emphasized. To determine the most effective approach to ageism-related education for allied health students, this study examined ageism among this group of students, with the hypothesis that ageism was expressed not only toward elderly adults but also toward individuals other than elderly adults. METHODS: A questionnaire survey was conducted among 154 allied health students in Japan. The questionnaire involved tree drawings to evaluate the drawer's personality and a measurement of the participants' ageism. There were two display conditions for tree drawing. In the elderly display condition, participants were informed that the drawer was an elderly person, and in a control condition, participants were not informed of the drawer's age. Participants were randomly assigned to each condition and were required to evaluate the drawer's personality based on 5 personality traits. After the evaluation, all participants were required to complete the Japanese short version of the Fraboni Scale of Ageism (FSA-J). RESULTS: The participants were 123 allied health students, 61 of whom were in the elderly display condition and 62 of whom were in the control condition. Based on the mean score on the FSA-J (M = 29.80), we divided the participants into a low-FSA-J group (N = 64) and a high-FSA-J group (N = 59). There was no significant difference between the display conditions on the FSA-J score. In the high-FSA-J groups, the control condition evaluated the drawer's personality as more timid than did the elderly display condition (F = 4.26, df = 1, 119). For negligence, the high-FSA-J group evaluated the drawer's personality as more negligent than did the low-FSA-J group (F = 4.08). For broad interests, the main effects of condition and groups were significant (F = 4.23). CONCLUSIONS: The results suggested that ageism indicated a negative evaluation not only of elderly adults but also of individuals other than elderly adults, and students with negative ageism might evaluate the elderly drawer more positively. We have discussed the possibility that negative ageism among allied health students in Japan might underlie these positive stereotypes.

Depression, risk factors, and coping strategies in the context of social dislocations resulting from the second wave of COVID-19 in Japan.

BACKGROUND: Social dislocations resulting from coronavirus disease 2019 (COVID-19) pandemic have been prolonged, which has led to general population social suppression. The present study aimed to reveal risk factors associated with mental health problems and suggest concrete coping strategies in the context of COVID-19. METHODS: A web-based survey was conducted in July when Japan was experiencing a second wave of COVID-19. Demographics, Patient Health Questionnaire-9 (PHQ-9), state anger, anger control, and the Brief Coping Orientation to Problems Experienced were measured. Multivariate logistic regression analysis on PHQ-9 scores by set variables was conducted. RESULTS: The participants were 2708 individuals, and 18.35% of them were depressed. Logistic regression analysis showed that in the order of odds ratios (ORs), underlying disease (OR = 1.96, 95% confidence interval (CI) = 1.32-2.92), not working (OR = 1.85, CI = 1.22-2.80), negative economic impact (OR = 1.33, CI = 1.01-1.77), state anger (OR = 1.17, CI = 1.14-1.21), anger control (OR = 1.08, CI = 1.04-1.13), age (OR = 0.97, CI = 0.96-0.98), high income (OR = 0.45, CI = 0.25-0.80), and being married (OR = 0.53, CI = 0.38-0.74) were predictors of depressive symptoms. Regarding coping strategies, planning (OR = 0.84, CI = 0.74-0.94), use of instrumental support (OR = 0.85, CI = 0.76-0.95), denial (OR = 0.88, CI = 0.77-0.99), behavioural disengagement (OR = 1.28, CI = 1.13-1.44), and self-blame (OR = 1.47, CI = 1.31-1.65) were associated with probable depression. CONCLUSIONS: During prolonged psychological distress caused by COVID-19 pandemic, the prevalence of depressive symptoms in Japan was two to nine times as high as before the COVID-19 pandemic, even though Japan was not a lockdown country. Although some coping strategies were useful for maintaining mental health, such as developing ways, alone or with others, to address or avoid social dislocations, the influence of demographics was more powerful than these coping strategies, and medical treatments are needed for high-risk individuals.

Efficacy of stress management program for depressive patients with advanced head and neck cancer: A single-center pilot study / Eficacia de un programa de control del estrés para pacientes depresivos con cáncer avanzado de cabeza y cuello: estudio de un solo centro

BACKGROUND/OBJECTIVE: Patients with head and neck cancer (HNC) have some problems such as dysfunction of breathing, eating, and/or speaking. The aim of this study was to examine efficacy of the stress management program for HNC patients (SMAP-HNC) compared with usual care (UC). METHOD: We conducted a pilot study of SMAP-HNC for depressive HNC patients between January 2016 and March 2018. The program contains psychoeducation, stress coping training, and operant reinforcement. The outcome measure was the Hospital Anxiety and Depression Scale (HADS), Functional Assessment of Cancer Therapy (FACT), and Brief Coping Inventory (COPE). RESULTS: Twenty patients were randomly assigned to SMAP-HNC and UC group. Although a small sample sizes, there was no significant difference of depression score change between SMAP-HNC and UC group (Hedges’d g -0.83; 95% CI -1.80 to 0.13). CONCLUSIONS: It was the first study to conduct stress management program for HNC patients. Unfortunately, our trial designed as a randomized controlled trial is underpowered to make conclusion as to the efficacy of SMAP-HNC. However, there are some valuable suggestions to modify the stress management program in future

ANTECEDENTES/OBJETIVO: Los pacientes con cáncer de cabeza y cuello (CCC) tienen algunos problemas como trastornos de la respiración, la alimentación y/o el habla. El objetivo de este estudio fue examinar la eficacia de un programa de control del estrés para pacientes con CCC (SMAP-HNC) en comparación con la atención habitual (AH). MÉTODO: Llevamos a cabo un estudio piloto de SMAP-HNC para pacientes depresivos con CCC entre enero de 2016 y marzo de 2018. El programa contiene psicoeducación, entrenamiento para afrontar el estrés y refuerzo operante. Las medidas de los resultado fueron la Hospital Anxiety and Depression Scale (HADS), la Functional Assessment of Cancer Therapy (FACT) y el Brief Coping Inventory (COPE). RESULTADOS: Veinte pacientes fueron asignados aleatoriamente al grupo SMAP-HNC y AH. Aunque los tamaños de las muestras son pequeños, no hubo diferencias significativas en el cambio en el puntaje de depresión entre el grupo SMAP-HNC y el grupo AH (g de Heges's -0,83; IC del 95%: -1,80 a 0,13). CONCLUSIONES: Es el primer estudio en emplera un programa de control del estrés para pacientes con CCC. Desafortunadamente, nuestro ensayo diseñado como un ensayo controlado aleatorio tiene poco poder para llegar a una conclusión sobre la eficacia de SMAP-HNC. Sin embargo, hay algunas sugerencias valiosas para modificar el programa de control del estrés en el futuro

Efficacy of stress management program for depressive patients with advanced head and neck cancer: A single-center pilot study.

BACKGROUND/OBJECTIVE: Patients with head and neck cancer (HNC) have some problems such as dysfunction of breathing, eating, and/or speaking. The aim of this study was to examine efficacy of the stress management program for HNC patients (SMAP-HNC) compared with usual care (UC). METHOD: We conducted a pilot study of SMAP-HNC for depressive HNC patients between January 2016 and March 2018. The program contains psychoeducation, stress coping training, and operant reinforcement. The outcome measure was the Hospital Anxiety and Depression Scale (HADS), Functional Assessment of Cancer Therapy (FACT), and Brief Coping Inventory (COPE). RESULTS: Twenty patients were randomly assigned to SMAP-HNC and UC group. Although a small sample sizes, there was no significant difference of depression score change between SMAP-HNC and UC group (Hedges'd g -0.83; 95% CI -1.80 to 0.13). CONCLUSIONS: It was the first study to conduct stress management program for HNC patients. Unfortunately, our trial designed as a randomized controlled trial is underpowered to make conclusion as to the efficacy of SMAP-HNC. However, there are some valuable suggestions to modify the stress management program in future.

ANTECEDENTES/OBJETIVO: Los pacientes con cáncer de cabeza y cuello (CCC) tienen algunos problemas como trastornos de la respiración, la alimentación y/o el habla. El objetivo de este estudio fue examinar la eficacia de un programa de control del estrés para pacientes con CCC (SMAP-HNC) en comparación con la atención habitual (AH). MÉTODO: Llevamos a cabo un estudio piloto de SMAP-HNC para pacientes depresivos con CCC entre enero de 2016 y marzo de 2018. El programa contiene psicoeducación, entrenamiento para afrontar el estrés y refuerzo operante. Las medidas de los resultado fueron la Hospital Anxiety and Depression Scale (HADS), la Functional Assessment of Cancer Therapy (FACT) y el Brief Coping Inventory (COPE). RESULTADOS: Veinte pacientes fueron asignados aleatoriamente al grupo SMAP-HNC y AH. Aunque los tamaños de las muestras son pequeños, no hubo diferencias significativas en el cambio en el puntaje de depresión entre el grupo SMAP-HNC y el grupo AH (g de Heges's -0,83; IC del 95%: -1,80 a 0,13). CONCLUSIONES: Es el primer estudio en emplera un programa de control del estrés para pacientes con CCC. Desafortunadamente, nuestro ensayo diseñado como un ensayo controlado aleatorio tiene poco poder para llegar a una conclusión sobre la eficacia de SMAP-HNC. Sin embargo, hay algunas sugerencias valiosas para modificar el programa de control del estrés en el futuro.

Evaluating depression in cognitively healthy elderly people by using Mini-Mental State Examination.

AIM: We examined a method for evaluating depression with the Mini-Mental State Examination in cognitively healthy elderly people and employed the projective perspective. METHODS: In MMSE three groups-normal, depressed tendency, and depressed-completed the Mini-Mental State Examination (MMSE) and a Japanese version of the 15-item Geriatric Depression Scale. The Mini-Mental State Examination evaluated individuals' writing based on a sentence, the number of written words, and sentence content; it also assessed their copying of drawn figures. RESULTS: In the depressed group, the proportion corresponding to the characteristics of (i) to (iii) was higher than in the other two groups: (i) the calculation score was 0 or 1; (ii) subjects scored above the median in sentence writing relative to similar subjects with the same language and clinical setting; and (iii) subjects expressed feelings in their writing. One point was given for each characteristic, and we calculated the sum. Depressed subjects had a score ≥2. CONCLUSIONS: This evaluation method can differentiate depressed subjects with high accuracy (sensitivity: 77.8%, specificity: 76.4%) without placing an extra burden on the subjects.

Selection process for botulinum toxin injections in patients with chronic-stage hemiplegic stroke: a qualitative study.

BACKGROUND: Botulinum toxin (BT) injection is a new treatment for spasticity with hemiplegia after stroke. How a patient decides to receive BT injections after becoming aware of the treatment remains unclear. In this exploratory qualitative study, we aimed to investigate patients' decision-making about treatment strategies in collaboration with family and health professionals and to identify conflicts in patients' feelings about BT treatment. METHODS: The study included six patients with stroke sequelae. Data were collected using comprehensive interviews and were analyzed using the grounded theory approach and trajectory equifinality modeling. RESULTS: After patients learned about BT treatment, they clearly exhibited the following two concurrent perceptions: "the restriction of one's life due to disabilities" and "the ability to do certain things despite one's disabilities." Some patients reported a "fear of not being able to maintain the status quo owing to the side effects of BT." To alleviate this fear, timely support from family members was offered, and patients overcame anxiety through creative thinking. However, there were also expressions that revealed patients' difficulties dealing with negative events. These factors influenced the patients' development of "expectations of BT" or "hesitations about BT." CONCLUSIONS: To establish treatment strategies in collaboration with patients, healthcare professionals should show supportive attitudes and have discussions with patients and their family members to help patients resolve their conflicts and should establish treatment strategies that maintain the positive aspects of patients' lives.

Characteristics of dementia patients who described or did not describe the relationship between two people on the COGNISTAT speech sample.

Speech sample of Cognitive Status Examination (COGNISTAT) is a task in which examinees freely talk about what is happening in a presented picture. We investigated whether there are differences in the characteristics between patients who described or did not describe the relationship between two people in the speech sample based on age, gender, cognitive dysfunction, and type of dementia (Alzheimer's disease and dementia with Lewy bodies). The participants were 60-year-old or older patients diagnosed with Alzheimer's disease or dementia with Lewy bodies who undertook the Mini-Mental State Examination (MMSE) and COGNISTAT at a general hospital specialized in care for the elderly. MMSE and COGNISTAT were performed by a female clinical psychologist in all patients. In a stepwise logistic regression analysis using the two groups (description and no description groups) as a response variable, and the age, gender, diagnosis, MMSE score, and score of each COGNISTAT subtest as explanatory variables, the MMSE score (OR = 1.09; 95% CI [1.03, 1.15]) and gender (OR = 1.79; 95% CI [1.09, 2.93]) factors were extracted. These results indicated that patients with severer overall cognitive dysfunction and male patients were unlikely to describe the relationship between two people in a speech sample.

Effects of zolpidem/triazolam on cognitive performance 12 hours after acute administration.

OBJECTIVE: Most previous studies have concluded that decreased cognitive function and performance due to ultra-short acting hypnotics do not persist after 6-9 h post-administration. This study examined the effects of ultra-short acting hypnotics on cognitive function and performance 12 h after administration, ie, a time considered sufficient for the effects of hypnotics to disappear. METHODS: Thirteen healthy young male volunteers (mean age, 23.4 ± 3.2 years) participated in this study. Participants attended three sessions of polysomnography (PSG) recording preceded by oral administration of placebo for the first session, and 5 mg zolpidem or 0.25 mg triazolam for the second and third sessions, in a double-blinded, randomized manner at intervals of at least five days. A cognitive test battery was administered following each session, consisting of a psychomotor vigilance task (PVT), which reflects alertness and sleepiness, digit symbol substitution test (DSST), which reflects attention and working memory function, and assessment of subjective sleepiness and mental condition using a visual analog scale (VAS). RESULTS AND CONCLUSIONS: The administration of hypnotics significantly increased total sleep time, sleep efficiency, and sleep stages 2 and 4, and significantly decreased wake after sleep onset and sleep stage 1. PVT parameters were not affected by the administration of hypnotics, but DSST score was significantly lower, and "subjective alertness," "vigor," and "sadness" significantly deteriorated, after administration. In conclusion, while objective sleepiness disappeared 12 h after the administration of ultra-short acting hypnotics, their effects to decrease cognitive function persisted even after 12 h post-administration.

The role of psychological autonomy in the acceptance of ageing among community-dwelling elderly.

AIM: Previous research on psychological autonomy has focused on self-reliance. However, given that ageing is inevitable, acceptance of ageing might be a more stable factor that reflects quality of life (QOL) status. This study examined factors that affect the acceptance of ageing as a part of psychological autonomy. METHODS: We conducted questionnaire surveys among community-dwelling elderly people. The questionnaires consisted of the psychological autonomy scale, the Instrumental Activities of Daily Living Scale, and the QOL scale. RESULTS: In total, 572 elderly people completed the questionnaire, including 293 younger elderly and 279 older elderly. In both age groups, a ceiling effect was observed for the Instrumental Activities of Daily Living Scale. There was no positive relation between acceptance of ageing and QOL, and particularly in younger elderly people, acceptance of ageing was negatively related to QOL. However, the correlation between acceptance of ageing and self-reliance was positive, and self-reliance was positively related to QOL in younger elderly people. CONCLUSIONS: The acceptance of ageing did not show a positive relation in our participants who had high activities of daily living. Acceptance of ageing might be important for elderly people who have a physical disability and several restrictions in their daily life. For younger elderly people, acceptance of ageing was correlated with getting depression, in which case it is useful to reject self-ageing for QOL, and it was related to QOL through self-reliance.

Cognitive dysfunction in patients with very mild Alzheimer's disease and amnestic mild cognitive impairment showing hemispheric asymmetries of hypometabolism on ¹8F-FDG PET.

OBJECTIVE: We investigated cognitive dysfunction in patients with Alzheimer's disease (AD) and amnestic mild cognitive impairment (aMCI) who present hemispheric asymmetries of cerebral metabolic rate of glucose (CMRglc) decrease on (18) F-fluorodeoxyglucose positron emission tomography. METHODS: Based on the hemispheric asymmetries of CMRglc decrease in the posterior cingulate cortex, precuneus, and parietotemporal cortex, the patients were divided into three groups (a left-dominant hypometabolism group, a right-dominant hypometabolism group, and a non-dominant hypometabolism group). CMRglc decrease in the whole brain was controlled among the three groups. All the patients underwent mini-mental state examination (MMSE), Wechsler Memory Scale-Revised (WMS-R), and Wechsler Adult Intelligent Scale-Third (WAIS-III). RESULTS: There were no significant differences in MMSE and WAIS-III scores among the three groups. In WMS-R, the results indicated that the left-dominant group demonstrated significantly lower scores in verbal memory than the other two groups. Furthermore, the left-dominant group had a greater tendency to be diagnosed with AD rather than aMCI. CONCLUSIONS: Patients with AD and aMCI showing left-dominant hypometabolism tend to show severer impairment in verbal memory function and to be diagnosed with AD dementia.

Characteristics of depression in community-dwelling elderly people as indicated by the tree-drawing test.

BACKGROUND: The tree-drawing test (TDT) is a typical projective method, but previous studies have paid little attention to it for elderly people. We investigated the characteristics of depression in community-dwelling elderly people as indicated by the TDT. METHODS: This study was a complete enumeration survey of elderly people conducted through home visits. The contents of the survey included gender, age, presence or absence of housemates, frequency of going out, the 15-item Geriatric Depression Scale, and TDT. The subjects were divided into three groups (normal, depressed tendency, and depressed) according to the total 15-item Geriatric Depression Scale score. RESULTS: In TDT, no significant difference was observed in drooping crown, shadow of the whole tree, or shadow near the base, which have been regarded as indices of depression in younger people. However, the values concerning the size of the tree, such as the height and width of the whole tree, height and width of the crown, and number of occupied areas (of the paper), were significantly lower in the depressed group than in the other groups. In addition, the width of the trunk was significantly smaller in the depressed group than in the normal group. Subjects were classified as being in a 'depressed state' if they used 40 or fewer areas for drawing (i.e. occupied areas) and a 'non-depressed state' if they used 41 or more areas. This enabled depression to be detected (sensitivity: 71.4%; specificity: 79.9%). CONCLUSIONS: The size of the tree in TDT is suggested to reflect characteristics of depression in elderly people, such as introversion, reserve, antisocial attitude, a feeling of inferiority, weakness of ego, and lack of vigour. Furthermore, the numbers of occupied areas were found to be relatively useful in detecting depression in elderly people.

[Methylphenidate].

Methylphenidate enhances dopaminergic neurotransmission in the central nervous system. Methylphenidate improves social functions as well as clinical symptoms of patients suffered of narcolepsy and attention deficit hyperactivity disorder (ADHD), though it has the potential of abuse. It is reported that approximately 4% of older teens and emerging adults in the US annually misusing methylphenidate. Non-medical/illegal use of methylphenidate causes many consequences including addiction, negative reactions and medical complications. Growing number of illegal trades of methylphenidate and medical complications caused by misuse of methylphenidate urged Japanese government to introduce regulations limiting access to prescribed methylphenidate in 2008. Clinicians should be cautious about prescribing methylphenidate, especially patients with complaint of excessive daytime sleepiness.

[Circadian rhythm sleep-wake disorder (circadian rhythm sleep disorder)].

The role of the circadian system is forecasting the daily and yearly change of environment. Circadian rhythm sleep-wake disorder (CRSWD) is defined as physical and social impairment caused by misalignment between circadian rhythm and desirable social schedule. CRSWDs are induced by medical or environmental factors as well as dysfunctions of circadian system. Clinicians should be aware that sleep-inducing medications, restless legs syndrome, delirium and less obedience to social schedule are frequent cause of CRSWD among elderly. Bright light therapy and orally administered small dose of melatonin or melatonin agonist at proper circadian phase are recommended treatments. Sleep-inducing medications should not be considered as CRSWD treatments, especially to elderly.

Physical and functional interaction between DDB and XPA in nucleotide excision repair.

Damaged DNA-binding protein (DDB), consisting of DDB1 and DDB2 subunits recognizes a wide spectrum of DNA lesions. DDB is dispensable for in vitro nucleotide excision repair (NER) reaction, but stimulates this reaction especially for cyclobutane pyrimidine dimer (CPD). Here we show that DDB directly interacts with XPA, one of core NER factors, mainly through DDB2 subunit and the amino-acid residues between 185 and 226 in XPA are important for the interaction. Interestingly, the point mutation causing the substitution from Arg-207 to Gly, which was previously identified in a XP-A revertant cell-line XP129, diminished the interaction with DDB in vitro and in vivo. In a defined system containing R207G mutant XPA and other core NER factors, DDB failed to stimulate the excision of CPD, although the mutant XPA was competent for the basal NER reaction. Moreover, in vivo experiments revealed that the mutant XPA is recruited to damaged DNA sites with much less efficiency compared with wild-type XPA and fails to support the enhancement of CPD repair by ectopic expression of DDB2 in SV40-transformed human cells. These results suggest that the physical interaction between DDB and XPA plays an important role in the DDB-mediated NER reaction.