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  1. Article ; Online: Secular trends in the prevalence of dementia based on a community-based complete enumeration in Japan: the Nakayama Study.

    Shimizu, Hideaki / Mori, Takaaki / Yoshida, Taku / Tachibana, Ayumi / Ozaki, Tomoki / Yoshino, Yuta / Ochi, Shinichiro / Sonobe, Naomi / Matsumoto, Teruhisa / Komori, Kenjiro / Iga, Jun-Ichi / Ninomiya, Toshiharu / Ueno, Shu-Ichi / Ikeda, Manabu

    Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society

    2022  Volume 22, Issue 5, Page(s) 631–641

    Abstract: Background: The number of dementia patients is increasing worldwide, especially in Japan, which has the world's highest ageing population. The increase in the number of older people with dementia is a medical and socioeconomic problem that needs to be ... ...

    Abstract Background: The number of dementia patients is increasing worldwide, especially in Japan, which has the world's highest ageing population. The increase in the number of older people with dementia is a medical and socioeconomic problem that needs to be prevented, but the actual situation is still not fully understood.
    Methods: Four cross-sectional studies on dementia were conducted in 1997, 2004, 2012, and 2016 for complete enumeration of all residents aged 65 years and older. We examined the secular trends in the prevalence of all-cause dementia, Alzheimer's disease (AD), vascular dementia (VaD), and other/unclassified dementia.
    Results: The age-standardised prevalence of all-cause dementia significantly increased (4.5% in 1997, 5.7% in 2004, 5.3% in 2012, 9.5% in 2016; P for trend <0.05). Similar trends were observed for AD (1.7%, 3.0%, 2.5% and 4.9%, respectively; P for trend <0.05) and other/unclassified dementia (0.8%, 1.0%, 1.0% and 2.2%, respectively; P for trend <0.05), whereas no significant change in VaD was seen (2.1%, 1.8%, 1.8%, 2.4%, respectively; P for trend = 0.77). The crude prevalence of all-cause dementia and AD increased from 1997 to 2016 among participants aged 75-79 years and ≥85 years (all P for trend <0.05). Similar trends were observed for other/unclassified dementia among participants aged ≥80 years (all P for trend <0.05), but not in VaD.
    Conclusions: The prevalence of dementia has increased beyond the ageing of the population, suggesting that factors in addition to ageing are involved in the increase in the number of older people with dementia. To control the increase in the number of older people with dementia, elucidation of secular trends in the incidence, mortality, and prognosis of dementia as well as the factors that promote and protect against dementia, and development of preventive strategies are necessary.
    MeSH term(s) Aged ; Alzheimer Disease/epidemiology ; Cross-Sectional Studies ; Dementia/epidemiology ; Dementia, Vascular/epidemiology ; Humans ; Japan/epidemiology ; Prevalence ; Risk Factors
    Language English
    Publishing date 2022-06-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2213105-X
    ISSN 1479-8301 ; 1346-3500
    ISSN (online) 1479-8301
    ISSN 1346-3500
    DOI 10.1111/psyg.12865
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Do family caregivers perceive more difficulty when they look after patients with early onset dementia compared to those with late onset dementia?

    Arai, Asuna / Matsumoto, Teruhisa / Ikeda, Manabu / Arai, Yumiko

    International journal of geriatric psychiatry

    2007  Volume 22, Issue 12, Page(s) 1255–1261

    Abstract: Objective: To compare family caregiving situations for patients with early onset dementia (EOD) and late onset dementia (LOD), and to identify the specific problems experienced by relatives caring for EOD patients.: Methods: The participants were ... ...

    Abstract Objective: To compare family caregiving situations for patients with early onset dementia (EOD) and late onset dementia (LOD), and to identify the specific problems experienced by relatives caring for EOD patients.
    Methods: The participants were chosen from 92 consecutive caregiver-patient dyads, comprising co-residing family caregivers and outpatients who fulfilled the diagnostic criteria for dementia. The patients were assessed according to cognitive function, neuropsychiatric disturbances and the severity of dementia. The caregivers completed a self-administered questionnaire that included items on their sociodemographic status and caregiving situation. Caregiver burden was assessed by the Japanese version of the Zarit Burden Interview.
    Results: In total, 68 dyads were eligible for the analysis, 14 of which included patients with EOD and 54 of which included patients with LOD. There were no significant differences between the two groups in terms of patient clinical features, duration of caregiving, number of hours during which caregivers were relieved per day or number of hours of caregiving per day. No significant associations were detected between the type of dementia and caregiver characteristics (such as health status) or caregiver burden, even after adjusting for confounding variables. However, the caregivers of EOD patients had greater perceived difficulties due to patient behavioural disturbances than did the caregivers of LOD patients.
    Conclusions: Our findings demonstrated that additional resources, such as care services, should be provided for sufferers of EOD, in order to allow family caregivers to cope with difficulties associated with patient behavioural problems.
    MeSH term(s) Adaptation, Psychological ; Age of Onset ; Aged ; Aged, 80 and over ; Caregivers/psychology ; Cost of Illness ; Dementia/diagnosis ; Dementia/epidemiology ; Dementia/nursing ; Female ; Health Status ; Home Nursing/psychology ; Humans ; Male ; Middle Aged ; Surveys and Questionnaires
    Language English
    Publishing date 2007-12
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 806736-3
    ISSN 1099-1166 ; 0885-6230
    ISSN (online) 1099-1166
    ISSN 0885-6230
    DOI 10.1002/gps.1935
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Phenotypical difference of Amyloid Precursor Protein (APP) V717L mutation in Japanese family

    Abe Masao / Sonobe Naomi / Fukuhara Ryuji / Mori Yoko / Ochi Shinichiro / Matsumoto Teruhisa / Mori Takaaki / Tanimukai Satoshi / Ueno Shu-ichi

    BMC Neurology, Vol 12, Iss 1, p

    2012  Volume 38

    Abstract: Abstract Background Alzheimer’s disease (AD) is the most common form of dementia. Mutations in genes such as those encoding amyloid precursor protein (APP), presenilin 1 and presenilin 2, are responsible for early-onset familial AD. Case presentation In ... ...

    Abstract Abstract Background Alzheimer’s disease (AD) is the most common form of dementia. Mutations in genes such as those encoding amyloid precursor protein (APP), presenilin 1 and presenilin 2, are responsible for early-onset familial AD. Case presentation In this study, we report a 275341 G > C (Val717Leu) mutation in the APP gene in a Japanese family with early onset AD by genetic screening. This mutation has previously been detected in European families. In the Japanese family we screened, the age at onset of AD was 47.1 ± 3.1 years old (n = 9; range, 42–52). The symptoms in the affected members included psychiatric vulnerability and focal signs such as pyramidal signs, epileptic seizures, and myoclonic discharges. An MR imaging study showed relatively mild atrophic changes in the bilateral hippocampus and cerebral cortices in all affected members compared with their clinical presentations. Conclusion We conclude that the clinical features of Alzheimer’s disease can be different even when caused by the same mutation in the APP gene. Further clinical and genetic studies are required to clarify the relationship between phenotypes and genotypes.
    Keywords Neurology. Diseases of the nervous system ; RC346-429 ; Neurosciences. Biological psychiatry. Neuropsychiatry ; RC321-571 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Neurology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 616
    Language English
    Publishing date 2012-06-01T00:00:00Z
    Publisher BioMed Central
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Effects of adenotonsillectomy on neurocognitive function in pediatric obstructive sleep apnea syndrome.

    Horiuchi, Fumie / Oka, Yasunori / Komori, Kenjiro / Tokui, Yasumasa / Matsumoto, Teruhisa / Kawabe, Kentaro / Ueno, Shu-Ichi

    Case reports in psychiatry

    2014  Volume 2014, Page(s) 520215

    Abstract: Obstructive sleep apnea syndrome (OSAS) in children does not only present with symptoms of sleep disturbances but also with associated symptoms such as growth failure, enuresis, academic learning difficulties, and behavioral problems, including attention ...

    Abstract Obstructive sleep apnea syndrome (OSAS) in children does not only present with symptoms of sleep disturbances but also with associated symptoms such as growth failure, enuresis, academic learning difficulties, and behavioral problems, including attention deficit/hyperactivity disorder- (ADHD-) like symptoms. We evaluated neurocognitive functions before and after adenotonsillectomy in a patient with OSAS. An 11-year-old boy suspected of having ADHD with nocturnal enuresis was referred for evaluation. He was found to have adenotonsillar hypertrophy. Presence of snoring was evident only after detailed medical interview. Polysomnography confirmed the diagnosis of OSAS, which was subsequently treated by adenotonsillectomy. The apnea/hypopnea index decreased from 21.9 at baseline to 1.8 after surgery, and the frequency of enuresis fell from almost nightly to 2-3 times per month. Neurocognitive and behavioral assessment after the treatment of OSAS showed significant improvement in cognitive functions, especially attention capacity and considerable amelioration of behavioral problems including ADHD-like symptoms. As the most common cause of pediatric OSAS is adenotonsillar hypertrophy, medical interview and oropharyngeal examination should always be performed in children suspected of having ADHD. The necessity of sleep evaluation for children with ADHD-like symptoms was also emphasized.
    Language English
    Publishing date 2014-05-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2629914-8
    ISSN 2090-6838 ; 2090-682X
    ISSN (online) 2090-6838
    ISSN 2090-682X
    DOI 10.1155/2014/520215
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Combined clozapine and electroconvulsive therapy in a Japanese schizophrenia patient: a case report.

    Yoshino, Yuta / Ozaki, Yuki / Kawasoe, Koichiro / Ochi, Shinichiro / Niiya, Takanori / Sonobe, Naomi / Matsumoto, Teruhisa / Ueno, Shu-Ichi

    Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology

    2014  Volume 12, Issue 2, Page(s) 160–162

    Abstract: Clozapine is well-known for successful use in schizophrenic patients treatment resistant to other antipsychotics. However, even with clozapine, 25% of schizophrenic patients are not in remission. Recently, as adjunctive treatment with clozapine, ... ...

    Abstract Clozapine is well-known for successful use in schizophrenic patients treatment resistant to other antipsychotics. However, even with clozapine, 25% of schizophrenic patients are not in remission. Recently, as adjunctive treatment with clozapine, electroconvulsive therapy has been reported to be an effective and safe adjunctive treatment. We report a Japanese schizophrenic woman who was not in remission with clozapine alone but with both clozapine and electroconvulsive therapy.
    Language English
    Publishing date 2014-08-12
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2211550-X
    ISSN 1738-1088
    ISSN 1738-1088
    DOI 10.9758/cpn.2014.12.2.160
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: [A case report of early-onset Alzheimer's disease with multiple psychotic symptoms, finally diagnosed as APPV717I mutation by genetic testing].

    Ishimaru, Takashi / Ochi, Shinichiro / Matsumoto, Teruhisa / Yoshida, Taku / Abe, Masao / Toyota, Yasutaka / Fukuhara, Ryuji / Tanimukai, Satoshi / Ueno, Shu-ichi

    Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica

    2013  Volume 115, Issue 10, Page(s) 1042–1050

    Abstract: It is difficult to confirm a diagnosis of early-onset Alzheimer's disease (EOAD) because patients sometimes have non-specific cortical features, such as psychiatric symptoms, executive functional impairment, and pyramidal symptoms, along with typical ... ...

    Abstract It is difficult to confirm a diagnosis of early-onset Alzheimer's disease (EOAD) because patients sometimes have non-specific cortical features, such as psychiatric symptoms, executive functional impairment, and pyramidal symptoms, along with typical symptoms, such as recent memory impairment and disorientation. We encountered a patient with multiple psychotic symptoms, finally diagnosed with EOAD on genetic testing. A right-handed sixty-year-old man, whose mother was suspected of having dementia, developed memory impairment at the age of fifty, disorientation at the age of fifty-six, and both visual hallucination and dressing apraxia at the age of fifty-nine. After admission to a psychiatric hospital for treatment, his symptoms disappeared with antipsychotic medication. However, his ADL were declining and so he was referred to our university hospital. He had frontal lobe symptoms, pyramidal signs, and extrapyramidal signs with severe dementia. Neuropsychological examinations were not possible because of sedation. On brain MRI, he showed diffuse atrophy of the cerebral cortex and hippocampus. HMPO-SPECT showed hypoperfusion of cerebral cortices diffusely. We decided to perform genetic testing because he had both family and alcohol abuse histories. He showed EOAD with V717I mutation of the amyloid precursor protein gene. After the discontinuation of antipsychotics, excessive sedation and extrapyramidal signs disappeared. A dose of 10 mg of donepezil was effective to improve motivation and activity, and his mini mental examination score was calculable after recovery. The case supports usefulness of applying genetic testing for Alzheimer's disease to patients with early onset dementia, even when they do not have a family history.
    MeSH term(s) Alzheimer Disease/drug therapy ; Alzheimer Disease/genetics ; Alzheimer Disease/pathology ; Alzheimer Disease/psychology ; Brain/physiopathology ; Genetic Testing/methods ; Humans ; Indans/therapeutic use ; Male ; Middle Aged ; Mutation/genetics ; Piperidines/therapeutic use
    Chemical Substances Indans ; Piperidines ; donepezil (8SSC91326P)
    Language Japanese
    Publishing date 2013
    Publishing country Japan
    Document type Case Reports ; English Abstract ; Journal Article
    ZDB-ID 604306-9
    ISSN 0033-2658
    ISSN 0033-2658
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Neural basis of visual perception and reasoning ability in Alzheimer's disease: correlation between Raven's Colored Progressive Matrices test and

    Yoshida, Taku / Mori, Takaaki / Shimizu, Hideaki / Yoshino, Yuta / Sonobe, Naomi / Matsumoto, Teruhisa / Kikuchi, Keiichi / Miyagawa, Masao / Iga, Junichi / Mochizuki, Teruhito / Ueno, Shu-Ichi

    International journal of geriatric psychiatry

    2016  Volume 32, Issue 4, Page(s) 407–413

    Abstract: Objective: Impairment of visual perception frequently occurs in Alzheimer's disease (AD) and can cause severe constraints in daily activities. The nonverbal Raven's Colored Progressive Matrices (RCPM) test consists of sets A, AB, and B and is easily ... ...

    Abstract Objective: Impairment of visual perception frequently occurs in Alzheimer's disease (AD) and can cause severe constraints in daily activities. The nonverbal Raven's Colored Progressive Matrices (RCPM) test consists of sets A, AB, and B and is easily performed in a short time to evaluate both visual perception and reasoning ability. The purpose of this study was to evaluate the neural basis of visual perception and reasoning ability in patients with AD using RCPM and single-photon emission computed tomography (SPECT).
    Methods: Fifty patients who fulfilled the National Institute on Aging/Alzheimer's Association criteria for probable AD dementia were examined with RCPM and SPECT. All SPECTs were performed using N-isopropyl-p-[
    Results: There was a significant positive correlation between RCPM total score and rCBF in the inferior parietal lobes bilaterally, the right inferior temporal gyrus, and the right middle frontal gyrus. Set A was positively correlated with rCBF in the right temporal and right parietal lobes. Set AB was positively correlated with rCBF in the right temporal, right parietal, and right frontal lobes. Set B was positively correlated with rCBF in the right parietal and right frontal lobes.
    Conclusion: Our findings suggest that deteriorations of specific brain regions are associated with dysfunction of visual perception and reasoning ability in AD. RCPM is another informative assessment scale of cognition for use in patients with AD. Copyright © 2016 John Wiley & Sons, Ltd.
    MeSH term(s) Aged ; Aged, 80 and over ; Alzheimer Disease/physiopathology ; Animals ; Brain/physiopathology ; Cerebrovascular Circulation/physiology ; Cognition Disorders/physiopathology ; Female ; Humans ; Male ; Middle Aged ; Neuropsychological Tests ; Problem Solving/physiology ; Regression Analysis ; Severity of Illness Index ; Tomography, Emission-Computed, Single-Photon ; Visual Perception/physiology
    Language English
    Publishing date 2016-04-19
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 806736-3
    ISSN 1099-1166 ; 0885-6230
    ISSN (online) 1099-1166
    ISSN 0885-6230
    DOI 10.1002/gps.4481
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Phenotypical difference of amyloid precursor protein (APP) V717L mutation in Japanese family.

    Abe, Masao / Sonobe, Naomi / Fukuhara, Ryuji / Mori, Yoko / Ochi, Shinichiro / Matsumoto, Teruhisa / Mori, Takaaki / Tanimukai, Satoshi / Ueno, Shu-ichi

    BMC neurology

    2012  Volume 12, Page(s) 38

    Abstract: Background: Alzheimer's disease (AD) is the most common form of dementia. Mutations in genes such as those encoding amyloid precursor protein (APP), presenilin 1 and presenilin 2, are responsible for early-onset familial AD.: Case presentation: In ... ...

    Abstract Background: Alzheimer's disease (AD) is the most common form of dementia. Mutations in genes such as those encoding amyloid precursor protein (APP), presenilin 1 and presenilin 2, are responsible for early-onset familial AD.
    Case presentation: In this study, we report a 275341 G > C (Val717Leu) mutation in the APP gene in a Japanese family with early onset AD by genetic screening. This mutation has previously been detected in European families. In the Japanese family we screened, the age at onset of AD was 47.1 ± 3.1 years old (n = 9; range, 42-52). The symptoms in the affected members included psychiatric vulnerability and focal signs such as pyramidal signs, epileptic seizures, and myoclonic discharges. An MR imaging study showed relatively mild atrophic changes in the bilateral hippocampus and cerebral cortices in all affected members compared with their clinical presentations.
    Conclusion: We conclude that the clinical features of Alzheimer's disease can be different even when caused by the same mutation in the APP gene. Further clinical and genetic studies are required to clarify the relationship between phenotypes and genotypes.
    MeSH term(s) Adult ; Alzheimer Disease/congenital ; Alzheimer Disease/genetics ; Amyloid beta-Protein Precursor/genetics ; Female ; Genetic Predisposition to Disease/genetics ; Genetic Testing ; Humans ; Japan ; Male ; Middle Aged ; Mutation/genetics ; Pedigree ; Phenotype ; Polymorphism, Single Nucleotide/genetics
    Chemical Substances Amyloid beta-Protein Precursor
    Language English
    Publishing date 2012-06-15
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1471-2377
    ISSN (online) 1471-2377
    DOI 10.1186/1471-2377-12-38
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Relationship between regional cerebral blood flow and neuropsychiatric symptoms in dementia with Lewy bodies.

    Yoshida, Taku / Mori, Takaaki / Yamazaki, Kiyohiro / Sonobe, Naomi / Shimizu, Hideaki / Matsumoto, Teruhisa / Kikuchi, Keiichi / Miyagawa, Masao / Mochizuki, Teruhito / Ueno, Shu-ichi

    International journal of geriatric psychiatry

    2015  Volume 30, Issue 10, Page(s) 1068–1075

    Abstract: Objective: This aim of this study was to examine the mechanisms underlying the neuropsychiatric symptoms in dementia with Lewy bodies by investigating regional cerebral blood flow.: Methods: Participants were 27 patients who fulfilled the diagnostic ... ...

    Abstract Objective: This aim of this study was to examine the mechanisms underlying the neuropsychiatric symptoms in dementia with Lewy bodies by investigating regional cerebral blood flow.
    Methods: Participants were 27 patients who fulfilled the diagnostic criteria for probable dementia with Lewy bodies. All subjects underwent single-photon emission computed tomography scans using technetium-99 m hexamethylpropyleneamine oxime. Neuropsychiatric symptoms were evaluated by neuropsychiatric inventory. Multiple regression analyses using neuropsychiatric inventory and voxel-based analyses of covariance of the regional cerebral blood flow images between subjects with or without each neuropsychiatric symptom were performed. Additionally, similar voxel-based analyses of covariance between subjects with each neuropsychiatric symptom and normal subjects were performed.
    Results: There were no significant correlations in any psychiatric symptoms in multiple regression analyses. All subjects had hallucination but none had euphoria. We analyzed eight neuropsychiatric symptom scores with the exception of hallucination and euphoria using voxel-based analyses of covariance. Significant differences of regional cerebral blood flow were shown in groups with agitation, disinhibition, and irritability. Subjects with agitation showed hypoperfusion in the parietal lobule, the precuneus, and the angular gyrus, and hyperperfusion in the fusiform gyrus, the lingual gyrus, and the thalamus. Subjects with disinhibition showed hypoperfusion in the left frontal gyrus. Subjects with irritability showed hyperperfusion in the right frontal gyrus. There were no significant differences in regional cerebral blood flow between subjects with any neuropsychiatric symptoms and normal subjects.
    Conclusion: This study reveals that dysfunction of specific brain regions is associated with various neuropsychiatric symptoms in dementia with Lewy bodies.
    MeSH term(s) Aged ; Aged, 80 and over ; Alzheimer Disease/diagnostic imaging ; Alzheimer Disease/physiopathology ; Alzheimer Disease/psychology ; Brain/blood supply ; Cerebrovascular Circulation/physiology ; Female ; Humans ; Lewy Body Disease/diagnostic imaging ; Lewy Body Disease/physiopathology ; Lewy Body Disease/psychology ; Male ; Middle Aged ; Neuropsychological Tests ; Regression Analysis ; Tomography, Emission-Computed, Single-Photon/methods
    Language English
    Publishing date 2015-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 806736-3
    ISSN 1099-1166 ; 0885-6230
    ISSN (online) 1099-1166
    ISSN 0885-6230
    DOI 10.1002/gps.4263
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: [Dementia of Alzheimer type and frontotemporal dementia].

    Matsumoto, Teruhisa / Ikeda, Manabu / Hokoishi, Kazuhiko / Fukuhara, Ryuji / Tanabe, Hirotaka

    Nihon rinsho. Japanese journal of clinical medicine

    2004  Volume 62 Suppl 4, Page(s) 147–153

    MeSH term(s) Alzheimer Disease/diagnosis ; Diagnosis, Differential ; Humans ; Pick Disease of the Brain/diagnosis
    Language Japanese
    Publishing date 2004-04
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 390903-7
    ISSN 0047-1852
    ISSN 0047-1852
    Database MEDical Literature Analysis and Retrieval System OnLINE

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