Evidence map›Paper›PMID 24636630›Full record

ArticleBehavioral and brain functions : BBF2014

Comparison of alterations in cerebral hemoglobin oxygenation in late life depression and Alzheimer's disease as assessed by near-infrared spectroscopy.

Hisashi Kito, Akiko Ryokawa, Yoshihiro Kinoshita, Daimei Sasayama, Nobuhiro Sugiyama, Tomomi Ogihara, Takehiko Yasaki, Tetsuya Hagiwara, Shin Inuzuka, Tohru Takahashi and 5 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in Behavioral and brain functions : BBF, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 1 institution in 2 countries.

Hisashi KitoDepartment of Psychiatry, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan. hisashi@shinshu-u.ac.jp.
Akiko Ryokawa
Yoshihiro Kinoshita
Daimei Sasayama
Nobuhiro Sugiyama
Tomomi Ogihara
Takehiko Yasaki
Tetsuya Hagiwara
Shin Inuzuka
Tohru Takahashi
Hirokazu Genno
Hiroshi Nose
Tokiji Hanihara
Shinsuke Washizuka
Naoji Amano
Shinshu University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with Alzheimer's disease (AD) often present with apathy symptoms resembling the decreased motivation observed in depressed patients. Therefore, differentiating the initial phase of AD from late life depression may be difficult in some cases. Near-infrared spectroscopy (NIRS) is a functional neuroimaging modality that uses near-infrared light to measure changes in hemoglobin concentration on the cortical surface during activation tasks. The objective of this study was to investigate differences in brain activation associated with late life depression and with AD by means of NIRS.

methodsNIRS was performed in 30 patients with depression, 28 patients with AD, and 33 healthy controls, all aged 60 years or older. During two tasks, a verbal fluency task and a visuospatial task, changes in oxygenated hemoglobin concentration in the frontal and parietal cortices were investigated.

resultsIn the visuospatial task, cortical activation was lower in the depressed group than in the AD group, and significant differences were observed in the parietal cortex.

conclusionsNIRS can detect differences in brain activation between patients with late life depression and those with AD. NIRS is a promising tool for the differential diagnosis of late life depression and AD.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBrainDepressive DisorderDiagnosis, DifferentialFemaleHemoglobinsHumansMaleMiddle AgedSpectroscopy, Near-InfraredHemoglobins

Identifiers

PMID24636630
PMCPMC3995325
OpenAlexW2142916482

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.