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6 results for “feces metagenome”
Metagenomics assemblies and high-quality MAGs for "Long-read metagenomics to retrieve high-quality metagenome-assembled genomes from canine feces"
<p>This dataset includes the different metagenomics assemblies analyzed and its summary (_info.txt file):</p> <p>- <a href="https://zenodo.org/api/files/3a502803-82f7-4b51-ac62-7c1dfcdcb680/100_assembly.fasta">100_assembly.fasta</a> is the Flye 2.7 metagenomics assembly merging HMW and non-HMW datasets</p> <p>- <a href="https://zenodo.org/api/files/3a502803-82f7-4b51-ac62-7c1dfcdcb680/75_assembly.fasta">75_assembly.fasta</a> is the Flye 2.7 metagenomics assembly including 75% of random data of the merged dataset.</p> <p>- <a href="https://zenodo.org/api/files/3a502803-82f7-4b51-ac62-7c1dfcdcb680/50_assembly.fasta">50_assembly.fasta</a> is the Flye 2.7 metagenomics assembly including 50% of random data of the merged dataset.</p> <p>- <a href="https://zenodo.org/api/files/3a502803-82f7-4b51-ac62-7c1dfcdcb680/HMW_assembly.fasta?versionId=749ff6fd-2642-4ad1-971a-7f3404baa595">HMW_assembly.fasta</a> is the Flye 2.7 metagenomics assembly for HMW dataset.</p> <p>Moreover, it also includes the eight frameshift-corrected high-quality MAGs analyzed in the manuscript. </p>
Metagenome profiling of feces from mice flown on the RRRM-1 mission
In Rodent Research Reference Mission-1 (RRRM-1), forty female BALB/cAnNTac mice were flown on the International Space Station. To assess differences in outcomes due to age, twenty 10-12 week-old and twenty 32 week-old mice were flown, respectively. To directly assess spaceflight effects, half of the young and old mice (10 old, 10 young) were sacrificed on-orbit after 22-23 days (ISS Terminal, ISS-T), while the other half (10 old, 10 young) were returned live to Earth after 40 days and allowed to recover for 2 days (Live Animal Return, LAR) before sacrifice. Both the ISS-T and LAR animals had independent ground controls (10 mice housed in flight hardware in matched environmental conditions), basal controls (10 mice sacrificed 1 day after launch), and vivarium controls (10 mice housed within standard vivarium habitats). Thus RRRM-1 included a total of 160 mice. Feces were removed from 145 animals and preserved by flash freezing in liquid nitrogen and stored at -80 ˚C until DNA was extracted, and libraries generated and sequenced (target 10 M clusters per sample, PE 251 bp). This dataset features whole-genome shotgun metagenomics sequencing data from 8-10 feces samples per group.
Metagenomic analysis of feces from mice flown on the RR-6 mission
The objective of the Rodent Research-6 (RR-6) study was to evaluate muscle atrophy in mice during spaceflight and to test the efficacy of a novel therapeutic to mitigate muscle wasting. The experiment involved an implantable subcutaneous nanochannel delivery system (nDS; between scapula), which delivered the drug formoterol (FMT; a selective β2 adrenoceptor agonist), over the course of time. To this end, a cohort of forty 32-weeks-old female C57BL/6NTac mice were either sham operated or implanted with vehicle or treatment-filled nDS, launched in two Transporters (20 mice per Transporter) on SpaceX-13 on December 15, 2017. They were transferred to Rodent Habitats onboard the International Space Station (ISS), and maintained in microgravity for 29 days (N=20, Live Animal Return Spaceflight [LAR FLT]), or >50 days (N=20, ISS Terminal Spaceflight [ISS-T FLT]). After 29 days, the 20 LAR FLT animals were returned live to back to Earth on January 13, 2018. After splashdown, the animals were ambulatory on-ground for ~4 days, until all subjects were processed during one day of dissections. There were two Basal (BSL) groups of animals sacrificed (LAR BSL & ISS-T BSL; N=20; 40 animals; ~36 weeks old) at Kennedy Space Center (KSC; 12/9/17). LAR BSL animals were dissected, and samples were collected upon euthanasia. A Ground Control (GC) group, LAR GC, mimicked the LAR FLT group, which was housed at KSC, then shipped alive, to Novartis’s Facilities, where both the LAR FLT and LAR GC groups were processed (~41 weeks old; 1/16/18). All were anesthetized with isoflurane, blood samples were obtained by closed-chest cardiac puncture, and the animals were euthanized by exsanguination and thoracotomy. The 20 ISS-T FLT mice were anesthetized via intraperitoneal injection of ketamine/xylazine/acepromazine over the course of a four days of dissections (2/6/18 until 2/9/18; 53-56 days after launch; 44 weeks old at time of on-orbit dissections). Blood samples and euthanasia were conducted the same as LAR groups. Following blood draw and hind limb dissection, the ISS-T FLT animal carcasses were wrapped in aluminum foil, placed in a ziploc bag and placed in storage at -80˚C or colder until return. The ISS-T Ground Control (ISS-T GC) (at KSC) followed the same euthanasia timeline, methods, and preservation. The final processing of frozen ISS-T FLT, frozen ISS-T GC and frozen 0-day ISS-T BSL animals were completed at Houston Methodist Research Institute, in Houston, TX (5/21/18 until 5/24/18). GeneLab received feces from only sham treated animals (no drug treated animals) from the following groups. FLT: LAR (n=9), ISS-T (n=7); GC: LAR (N=7), ISS-T (N=9); BSL: LAR (n=7), ISS-T (n=9). DNA was extracted and analyzed by sequencing using a variety of different targeted and un-targeted metagenome profiling assays.
Metagenome profiling of feces from mice flown on the RR-23 mission
The objective of the RR-23 mission was to better understand the effects of spaceflight on the eyes, specifically on the structure and function of the arteries, veins, and lymphatic vessels that are needed to maintain vision. To this end, twenty male, C57BL/6J, 16-17 weeks-old mice were delivered to the ISS on SpaceX-21 in a single transporter, transferred to two rodent habitats, and maintained in microgravity for 38 days. Flight mice were then returned to Earth alive (Jan 13th, 2021). After splashdown in the Atlantic Ocean, mice were transported to Kennedy Space Center via helicopter. The 20 Flight, 20 Habitat Ground Control (HGC), and 20 Vivarium Ground Control (VGC) mice were removed from Rodent Transporters (Flight and HGC) or vivarium cages (VGC), placed into shipping containers, and flown to Texas A and M University. There, mice underwent post-flight procedures, before euthanasia and tissue collection. Flight, HGC and VGC animals were euthanized and dissected on Jan 14th, 17th or 20th of 2021, respectively. Feces were removed from the animals and preserved by flash freezing in liquid nitrogen and stored at -80 ˚C until DNA was extracted, and libraries generated and sequenced (target 10 M clusters per sample, PE 250 bp). This dataset features 9 samples from the Flight group, 9 samples from the HGC group, and 9 samples from the VGC group.
Metagenomic analysis of feces from mice flown on the RR-9 mission
The objective of the Rodent Research-9 (RR-9) mission was to use mice to understand the molecular basis of phenomena that affect astronauts during long-duration spaceflight, particularly visual impairment and joint tissue degradation. To this end, a flight group (FLT) of 10-week-old male C57BL/6J mice was launched from Kennedy Space Center (KSC) on 8/14/2017 and housed in Rodent Habitats on the ISS for 33 days before being returned alive to Earth. After splashdown in the Pacific Ocean, the animals were transported to Loma Linda University (LLU) for testing, euthanasia and dissection on 9/18/2018. A Basal Control (BSL) was housed in standard cages at Kennedy Space Center (KSC) and euthanized one day after launch of the FLT animals (8/15/2017). Ground Control (GC) and Vivarium Control (VIV) studies were planned to commence at KSC approximately one-week after the conclusion of the flight experiments. However, all the GC and VIV mouse studies at KSC had to be cancelled due to Hurricane Irma and potential adverse effects on the animal housing facility. The GC and VIV studies were therefore rescheduled and begun in May, 2018. The GC was euthanized and dissected 6/18/2018 - 6/20/2018, while the VIV was euthanized and dissected 6/22/2018 - 6/23/2018. Because this resulted in a different cohort of mice being used for the GC and VIV controls as compared to the flight (FLT) and basal (BSL) groups, two cohort controls were included in the study. The first, Cohort Control 1 (CC_C1), was from the same cohort as the FLT and BSL animals, and was sacrificed and dissected 4 days after the FLT group (9/22/2017). The second, Cohort Control 2 (CC_C2), was from the same cohort as the GC and VIV animals, and was sacrificed and dissected 2-8 days after the GC and VIV groups, (6/24/2018 - 6/26/2018). The CC_C1 and CC_C2 groups were housed in standard cages and fed standard chow in contrast to all other groups which received Rodent Foodbars. To clarify the connections between treatment groups and animal cohorts, the following group abbreviations are used in the sample metadata: Flight (FLT_C1); Basal (BSL_C1); Ground Control (GC_C2); Vivarium Control (VIV_C2), Cohort Control 1 (CC_C1); Cohort Control 2 (CC_C2). Fecal pellets were isolated directly from mice during dissection and preserved by flash freezing in liquid nitrogen before stored at -80 C. DNA was then extracted, shotgun metagenomic libraries generated, and libraries sequenced (target 10 M clusters at PE 250 bp). Metagenomic data was generated from the following groups: Basal Control (n=5), Ground Control (n=5), Vivarium Control (n=5), Cohort Control 1 (n=5), Cohort Control 2 (n=5), Flight (n=5).
Metagenomic sequencing of adult zebrafish feces after SMZ exposure (Exposure of Danio rerio to environmental sulfamethoxazole may contribute to neurobehavioral abnormalities via gut microbiome disturb
GEO Series GSE255986. feces metagenome. 6 samples. Type: Other.
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