Advances in metagenomics have facilitated population studies of associations between microbial compositions and host properties, but strategies to minimize biases in these population analyses are needed. However, the effects of storage conditions, including freezing and preservation buffer, on microbial populations in fecal samples have not been studied sufficiently. In this study, we investigated metagenomic differences between fecal samples stored in different conditions. We collected 46 fecal samples from patients with lung cancer. DNA quality and microbial composition within different storage Methods were compared throughout 16S rRNA sequencing and post analysis. DNA quality and sequencing results for two storage conditions (freezing and preservation in buffer) did not differ significantly, whereas microbial information was better preserved in buffer than by freezing. In a metagenomic analysis, we observed that the microbial compositional distance was small within the same storage condition. Taxonomic annotation revealed that many microbes differed in abundance between frozen and buffer-preserved feces. In particular, the abundances of Firmicutes and Bacteroidetes varied depending on storage conditions. Microbes belonging to these phyla differed, resulting in biases in population metagenomic analysis. We suggest that a unified storage Methods is requisite for accurate population metagenomic studies.
The service is nice and the time of processing the application is fast.
Department of Neurosurgery, Queen Elizabeth Hospital, Hong Kong
Your service is excellent. Processing and editing were very fast. I hope to publish more of my works in your journal.
I would like to mention that I had a wonderful experience working with HSPI. The whole process right from manuscript submission to peer review till the publication of the article was very prompt & efficient. I wish you good luck for the future.
Your service is very good and fast reply, Also your service understand our situation and support us to publication our articles.
Palestine College of Nursing, Khan Younis, Gaza Strip, Palestine
Ayman M Abu Mustafa
Thank you very much for your support and encouragement. I am truly impressed by your tolerance and support.
Thank you very much
Diaverum: PADC, Jeddah, Saudi Arabia
"It was a pleasure to work with the editorial team of the journal on the submission of the manuscript. The team was professional, fast, and to the point".
NC A&T State University, USA
Your service is very good and fast reply, also your service understand our situation and support us to publication our articles.
Ayman M Abu Mustafa
“It was a delightful experience publishing my manuscript with the Clinical Journal of Obstetrics and Gynecology. They offered me lots of opportunities I never had from most publishing houses and their prompt services are greatly appreciated.”
Department of Agricultural Economics, Agribusiness and Extension, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Akowuah Jones Asafo
Publishing with the International Journal of Clinical and Experimental Ophthalmology was a rewarding experience as review process was thorough and brisk.
Their visibility online is second to none as their published articles appear in all search engines.
I will encourage researchers to publish with them.
I really liked the ease of submitting my manuscript in the HSPI journal. Further, the peer review was timely completed and I was communicated the final decision on my manuscript within 10 days of submission which is really appreciable. I strongly recommend all the scientists and researchers to submit their work in this journal”