Evidence map›Paper›PMID 34725450›Full record

ArticleScientific reports2021

A cryo-TSEM with temperature cycling capability allows deep sublimation of ice to uncover fine structures in thick cells.

Jiro Usukura, Akihiro Narita, Tomoharu Matsumoto, Eiji Usukura, Takeshi Sunaoshi, Syunya Watanabe, Yusuke Tamba, Yasuhira Nagakubo, Takashi Mizuo, Junzo Azuma and 4 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 21% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Review
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

14 authors at 4 institutions in 1 country.

Jiro UsukuraFacility of Ultra High Voltage Electron Microscope, Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Nagoya, 464-8601, Japan. usukura.jiro@b.mbox.nagoya-u.ac.jp.ORCID 0000-0003-2286-5403
Akihiro NaritaGraduate School of Science, Nagoya University, Nagoya, 464-8601, Japan.
Tomoharu MatsumotoGraduate School of Science, Nagoya University, Nagoya, 464-8601, Japan.
Eiji UsukuraGraduate School of Medicine, Kyoto University, Kyoto, 606-8303, Japan.
Takeshi SunaoshiHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Syunya WatanabeHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Yusuke TambaHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Yasuhira NagakuboHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Takashi MizuoHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Junzo AzumaHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Masako OsumiJapan Women's University, Tokyo, 112-8681, Japan.
Kazutaka NimuraHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Ryuichiro TamochiHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Yoichi OseHitachi High-Tech Corporation, Tokyo, 105-6409, Japan.
Hitachi High-Tech (Japan)Nagoya University · JPJapan Women's University · JPKyoto University · JP

Funding

AMED-SENTAN 8hm0102003s0107Japan Society for the Promotion of Science 19K06583Japan Society for the Promotion of Science 20K06586
6 · The paper itself

Abstract

The scanning electron microscope (SEM) has been reassembled into a new type of cryo-electron microscope (cryo-TSEM) by installing a new cryo-transfer holder and anti-contamination trap, which allowed simultaneous acquisition of both transmission images (STEM images) and surface images (SEM images) in the frozen state. The ultimate temperatures of the holder and the trap reached - 190 °C and - 210 °C, respectively, by applying a liquid nitrogen slush. The STEM images at 30 kV were comparable to, or superior to, the images acquired with conventional transmission electron microscope (100 kV TEM) in contrast and sharpness. The unroofing method was used to observe membrane cytoskeletons instead of the frozen section and the FIB methods. Deep sublimation of ice surrounding unroofed cells by regulating temperature enabled to emerge intracellular fine structures in thick frozen cells. Hence, fine structures in the vicinity of the cell membrane such as the cytoskeleton, polyribosome chains and endoplasmic reticulum (ER) became visible. The ER was distributed as a wide, flat structure beneath the cell membrane, forming a large spatial network with tubular ER.

Indexed as

CapsidCell MembraneCryoelectron MicroscopyCytoskeletonEndoplasmic ReticulumEquipment DesignFrozen SectionsIceImage Processing, Computer-AssistedMicroscopy, Electron, TransmissionRibosomesTemperatureTobacco Mosaic VirusIce

Identifiers

PMID34725450
PMCPMC8560947
OpenAlexW3210357468

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.