Abstract:
:Cryopreservation is a recognized method for the maintenance of Leptospira collections. Although cryoprotectants are commonly used in order to prevent or reduce the adverse effects of freezing, there is no consensus regarding the protocols of cryopreservation. This study aimed to compare cryopreservation protocols for Leptospira using different glycerol and dimethyl sulfoxide (DMSO) concentrations. Leptospira interrogans serovar Icterohaemorrhagiae, L. interrogans serovar Bratislava, and L. borgpetersenii serovar Hardjo were used as the experimental strains. For each strain, three protocols were tested using 5% and 10% glycerol and 2.5% DMSO. For each protocol, 12 tubes containing 1.5 mL of serovar were frozen at -70°C on the same day. An aliquot of each serovar/protocol was thawed once a month throughout 1 year. The viability of leptospires was evaluated by the recovery of those at days 7, 14, and 21 after thawing. Although no significant difference was found among the leptospiral recovery rates for the 9 serovar/protocols tested, DMSO (2.5%) was shown to be slightly better than glycerol, and its use should be encouraged as a cryoprotectant for leptospires.
journal_name
Biopreserv Biobankjournal_title
Biopreservation and biobankingauthors
Narduche L,Hamond C,Martins GM,Medeiros MA,Lilenbaum Wdoi
10.1089/bio.2015.0046subject
Has Abstractpub_date
2016-02-01 00:00:00pages
81-3issue
1eissn
1947-5535issn
1947-5543journal_volume
14pub_type
杂志文章abstract::The challenges facing biobanks are changing from simple collections of materials to quality-assured fit-for-purpose clinically annotated samples. As a result, informatics awareness and capabilities of a biobank are now intrinsically related to quality. A biobank may be considered a data repository, in the form of raw ...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2014.0099
更新日期:2015-10-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2011.0036
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journal_title:Biopreservation and biobanking
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doi:10.1089/bio.2010.0003
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2012.0022
更新日期:2012-08-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2015.0101
更新日期:2016-12-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2013.0004
更新日期:2013-06-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章,评审
doi:10.1089/bio.2017.0074
更新日期:2017-12-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2013.0027
更新日期:2013-10-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2020.0038
更新日期:2020-10-09 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2013.0043
更新日期:2014-02-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2020.0010
更新日期:2020-06-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2015.0087
更新日期:2015-12-01 00:00:00
abstract::Glycerol and dimethyl sulfoxide (DMSO) are widely used cryoprotectants for freezing human cell cultures. During the manufacturing process of ocular stem cell-based autographs, ex vivo cultivated ocular cells are cryopreserved for quality control purposes in accordance with regulatory requirements. The efficiency of th...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2020.0091
更新日期:2020-11-13 00:00:00
abstract::The comet assay measures DNA damage in individual cells (usually lymphocytes) and is widely used in biomonitoring studies. Lymphocytes are harvested and are usually cryopreserved for batch testing. We investigated cell loss during harvesting, cryopreservation, thawing, and washing of human peripheral lymphocytes and c...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2011.0024
更新日期:2011-12-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章,评审
doi:10.1089/bio.2020.0066
更新日期:2020-12-01 00:00:00
abstract::The quality of RNA preserved in different stabilization matrices was investigated after 2 weeks of storage at room temperature. RNA samples in RNAstable (Biomatrica), GenTegra (IntegenX), and RNAshell (Imagene) were compared to RNA stored at -80°C (the current gold standard for RNA preservation) and with liquid or dri...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章,多中心研究
doi:10.1089/bio.2012.0030
更新日期:2012-12-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章,评审
doi:10.1089/bio.2017.0030
更新日期:2017-04-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2013.0081
更新日期:2014-04-01 00:00:00
abstract:INTRODUCTION:Biobanking is a relatively new concept in the Arab region. Targeting different stakeholders to introduce the concept of biobanking and develop an acceptance of it among them is important for the growth of biobanking in the region. Undergraduate students of life sciences represent an important segment of st...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2016.0111
更新日期:2017-08-01 00:00:00
abstract::The advent of molecular characterization of tissues has brought an increasing emphasis on the quality of biospecimens, starting with the tissue procurement process. RNA levels are particularly affected by factors in the collection process, but the influence of different pre-analytical factors is not well understood. H...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2014.0076
更新日期:2015-06-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2020.0102
更新日期:2020-12-22 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2016.0100
更新日期:2017-08-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章,评审
doi:10.1089/bio.2016.0119
更新日期:2017-04-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2010.0012
更新日期:2010-09-01 00:00:00
abstract::Handling and processing of blood can significantly alter the molecular composition and consistency of biobank samples and can have a major impact on the identification of biomarkers. It is thus crucial to identify tools to determine the quality of samples to be used in biomarker discovery studies. In this study, a non...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2015.0092
更新日期:2016-10-01 00:00:00
abstract::Formalin-fixed paraffin-embedded (FFPE) material presents a readily available resource in the study of various biomarkers. There has been interest in whether the storage period has significant effect on the extracted macromolecules. Thus, in this study, we investigated if the storage period had an effect on the quanti...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2012.0052
更新日期:2013-04-01 00:00:00
abstract::Due to the requirement for comprehensive clinical research efforts in China, the importance of biobanking in modern clinical research is outlined in this overview. Hospitals, universities, and research institutes have been well organized as fundamental resources for Chinese biobanking initiatives and the resulting bio...
journal_title:Biopreservation and biobanking
pub_type: 历史文章,杂志文章
doi:10.1089/bio.2014.0096
更新日期:2015-02-01 00:00:00
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journal_title:Biopreservation and biobanking
pub_type: 杂志文章,评审
doi:10.1089/bio.2015.0084
更新日期:2016-04-01 00:00:00
abstract::The biobanking literature frequently addresses donor and societal issues surrounding biobanking, but the biobanker's perspective is rarely highlighted. While not comprehensive, this article offers an overview of the human aspects of biobanking from the viewpoint of biobank personnel-from biobank formation, through the...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2011.0018
更新日期:2011-09-01 00:00:00
abstract::Formalin fixation is known to inactivate most viruses in a vaccine production context, but nothing is published about virus activity in tissues treated with alternative, non-crosslinking fixatives. We used a model assay based on cell culture to test formalin and PAXgene Tissue fixative for their virus-inactivating abi...
journal_title:Biopreservation and biobanking
pub_type: 杂志文章
doi:10.1089/bio.2013.0010
更新日期:2013-08-01 00:00:00