Review for 10.1186/s12876-017-0731-5 (2018)

Reviewer ’s report  
 
Title: Cobalt Chloride Compromises Transepithelial Barrier Properties of CaCo -2 BBe Human 
Gastrointestinal Epithelial Cell Layers  
 
Version: 1 Date: 15 Aug 2017  
 
Reviewer: Susanne M.  Krug  
 
Reviewer's report:  
 
The revised manuscript is much clearer and better to follow, as missing informatio n have been 
added and additional aspects are now discussed.  
 
The authors dealt with all all raised issues either by doing the requested changes or by 
comprehensible commenting.  
 
The improvements and changes satisfy my requests.  
 
 
Are the methods appropriate and well described?  
If not,  please specify what is required in your comments to the authors.  
 
Yes 
 
Does the work include the necessary controls?  
If not, please specify which controls are required in your comments to the authors.  
 
Yes 
 
Are the conclusions drawn adequatel y supported by the data shown?  
If not, please explain in your comments to the authors.  
 
Yes 
 
Are you able to assess any statistics in the manuscript or wo uld you recommend an 
additional statistical review?  
If an additional statistical review is recommend ed, please specify what aspects require further 
assessment in your comments to the editors.  
 
I am able to assess t he statistics  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
Are the methods appropriate and well described?  
If not, please specify what is required i n your comments to the authors.  
 
1. Have you in the past five years received reimbursements, fees, funding, or salary from an 
organisation that may in any way ga in or lose financially from the publication of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation that may in any way gain or lose 
financially from the publication of this manuscript, either now or in the  future?  
 
3. Do you hold or are you currently applying for any patents relating to the content of the 
manuscript?  
 
4. Have you received reimbursements, fees, funding, or salary from an organization that 
holds or has applied for patents relating to the co ntent of the manuscript?  
 
5. Do you have any other financial competing interests?  
 
6. Do you have any non -financial competing interests in relation to this paper?  
 
If you can answer no to all of the above, write 'I declare that I have no competing inter ests' 
below. If your reply is yes to any, please give details below.  
 
I declare that I have no compet ing interests  
 
I agree to the open peer review policy of the journal. I understand t hat my name will be included 
on my report to the authors and, if the m anuscript is accepted f or publication, my named report 
including any attachments I upload will be posted on the website along  with the authors' 
responses. I agree for my report to be made available und er an Open Access  Creative Commons 
CC-BY license (http://creativecommons.org/licenses/by/4.0/ ). I understand that a ny comments 
which I do not wish to be included in my named report can be included as confidential  comments 
to the editors, which will not be published.  
 
I agree to the open peer review policy of t he journal