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Circadian skeletal muscle_wt and Clock mutants

ABSTRACT: One hundred ninety wildtype male C57BL/6J mice age 7-10 weeks were purchased from Jackson Laboratory and entrained to a 12:12 light:dark cycle for 2 weeks. Mice were placed in light-tight boxes on a 12:12 LD cycle for 4 weeks, then released into constant darkness. Starting 30 hours after entry into DD (CT18), the left leg muscle from 5 wildtype mice, and the right leg muscle from the same wildtype mice were collected every 4 hours for 48 hours, for a total of 12 timepoints. Total RNA from each side (left or right) were separately pooled to make a single sample for amplification and hybridization. Therefore, duplicate arrays (from left and right side) were performed at each time point. At timepoints 34 through 58 hours in DD, tissues from age-matched male C57BL/6J Clock/Clock homozygous mutant mice that had been treated with the same light entrainment protocol as the wildtype were collected. Tissues were collected from 5 Clock/Clock mutants at each timepoint except for 34 and 46 hours after the onset of DD, when tissues from 10 Clock/Clock mice were collected. As for the wildtype mice, right and left sides were collected, prepared, amplified, and hybridized in separate pools. Mice were sacrificed by cervical dislocation, and the optic nerves were severed in complete darkness; brain dissection was performed using illumination from an infrared viewer (FJW Industries, Palatine, IL). SCNs were dissected out, pooled at a density of 5 per tube in 100 ?l RNAlater (Ambion, Austin, TX), frozen on dry ice, and stored at –80?C until use. Keywords: time course

ORGANISM(S): Mus musculus

PROVIDER: GSE3746 | GEO | 2007/02/08

SECONDARY ACCESSION(S): PRJNA94305

REPOSITORIES: GEO

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Circadian skeletal muscle_wt and Clock mutants

Project description:One hundred ninety wildtype male C57BL/6J mice age 7-10 weeks were purchased from Jackson Laboratory and entrained to a 12:12 light:dark cycle for 2 weeks. Mice were placed in light-tight boxes on a 12:12 LD cycle for 4 weeks, then released into constant darkness. Starting 30 hours after entry into DD (CT18), the left leg muscle from 5 wildtype mice, and the right leg muscle from the same wildtype mice were collected every 4 hours for 48 hours, for a total of 12 timepoints. Total RNA from each side (left or right) were separately pooled to make a single sample for amplification and hybridization. Therefore, duplicate arrays (from left and right side) were performed at each time point. At timepoints 34 through 58 hours in DD, tissues from age-matched male C57BL/6J Clock/Clock homozygous mutant mice that had been treated with the same light entrainment protocol as the wildtype were collected. Tissues were collected from 5 Clock/Clock mutants at each timepoint except for 34 and 46 hours after the onset of DD, when tissues from 10 Clock/Clock mice were collected. As for the wildtype mice, right and left sides were collected, prepared, amplified, and hybridized in separate pools. Mice were sacrificed by cervical dislocation, and the optic nerves were severed in complete darkness; brain dissection was performed using illumination from an infrared viewer (FJW Industries, Palatine, IL). SCNs were dissected out, pooled at a density of 5 per tube in 100 ?l RNAlater (Ambion, Austin, TX), frozen on dry ice, and stored at â80?C until use. duplicates consisted of pools from independent mice

2010-06-11 | E-GEOD-3746 | biostudies-arrayexpress

Circadian liver_wt and Clock mutants

Project description:One hundred ninety wildtype male C57BL/6J mice age 7-10 weeks were purchased from Jackson Laboratory and entrained to a 12:12 light:dark cycle for 2 weeks. Mice were placed in light-tight boxes on a 12:12 LD cycle for 4 weeks, then released into constant darkness. Starting 30 hours after entry into DD (CT18), tissues from 5 (skeletal muscle) or 10 (liver or SCN) wildtype mice were collected every 4 hours for 48 hours, for a total of 12 timepoints. At timepoints 34 through 58 hours in DD, tissues from age-matched male C57BL/6J Clock/Clock homozygous mutant mice that had been treated with the same light entrainment protocol as the wildtype were collected. Tissues were collected from 5 Clock/Clock mutants at each timepoint except for 34 and 46 hours after the onset of DD, when tissues from 10 Clock/Clock mice were collected and run as independent replicates. Mice were sacrificed by cervical dislocation, and the optic nerves were severed in complete darkness; brain dissection was performed using illumination from an infrared viewer (FJW Industries, Palatine, IL). SCNs were dissected out, pooled at a density of 5 per tube in 100 ?l RNAlater (Ambion, Austin, TX), frozen on dry ice, and stored at –80?C until use. Keywords: time course

2007-02-08 | GSE3748 | GEO

Circadian rhythm in clock mutants

Project description:One hundred ninety wildtype male C57BL/6J mice age 7-10 weeks were purchased from Jackson Laboratory and entrained to a 12:12 light:dark cycle for 2 weeks. Mice were placed in light-tight boxes on a 12:12 LD cycle for 4 weeks, then released into constant darkness. Starting 30 hours after entry into DD (CT18), tissues from 5 (skeletal muscle) or 10 (liver or SCN) wildtype mice were collected every 4 hours for 48 hours, for a total of 12 timepoints. At timepoints 34 through 58 hours in DD, tissues from age-matched male C57BL/6J Clock/Clock homozygous mutant mice that had been treated with the same light entrainment protocol as the wildtype were collected. Tissues were collected from 5 Clock/Clock mutants at each timepoint except for 34 and 46 hours after the onset of DD, when tissues from 10 Clock/Clock mice were collected and run as independent replicates. Mice were sacrificed by cervical dislocation, and the optic nerves were severed in complete darkness; brain dissection was performed using illumination from an infrared viewer (FJW Industries, Palatine, IL). SCNs were dissected out, pooled at a density of 5 per tube in 100 ul RNAlater (Ambion, Austin, TX), frozen on dry ice, and stored at –80 degrees C until use. This SuperSeries is composed of the SubSeries listed below.

2007-02-07 | GSE3751 | GEO

Circadian liver_wt and Clock mutants

Project description:One hundred ninety wildtype male C57BL/6J mice age 7-10 weeks were purchased from Jackson Laboratory and entrained to a 12:12 light:dark cycle for 2 weeks. Mice were placed in light-tight boxes on a 12:12 LD cycle for 4 weeks, then released into constant darkness. Starting 30 hours after entry into DD (CT18), tissues from 5 (skeletal muscle) or 10 (liver or SCN) wildtype mice were collected every 4 hours for 48 hours, for a total of 12 timepoints. At timepoints 34 through 58 hours in DD, tissues from age-matched male C57BL/6J Clock/Clock homozygous mutant mice that had been treated with the same light entrainment protocol as the wildtype were collected. Tissues were collected from 5 Clock/Clock mutants at each timepoint except for 34 and 46 hours after the onset of DD, when tissues from 10 Clock/Clock mice were collected and run as independent replicates. Mice were sacrificed by cervical dislocation, and the optic nerves were severed in complete darkness; brain dissection was performed using illumination from an infrared viewer (FJW Industries, Palatine, IL). SCNs were dissected out, pooled at a density of 5 per tube in 100 ?l RNAlater (Ambion, Austin, TX), frozen on dry ice, and stored at â80?C until use. Keywords: time course duplicates consisted of pools from independent mice

2010-06-11 | E-GEOD-3748 | biostudies-arrayexpress

Circadian rhythm in clock mutants

Project description:One hundred ninety wildtype male C57BL/6J mice age 7-10 weeks were purchased from Jackson Laboratory and entrained to a 12:12 light:dark cycle for 2 weeks. Mice were placed in light-tight boxes on a 12:12 LD cycle for 4 weeks, then released into constant darkness. Starting 30 hours after entry into DD (CT18), tissues from 5 (skeletal muscle) or 10 (liver or SCN) wildtype mice were collected every 4 hours for 48 hours, for a total of 12 timepoints. At timepoints 34 through 58 hours in DD, tissues from age-matched male C57BL/6J Clock/Clock homozygous mutant mice that had been treated with the same light entrainment protocol as the wildtype were collected. Tissues were collected from 5 Clock/Clock mutants at each timepoint except for 34 and 46 hours after the onset of DD, when tissues from 10 Clock/Clock mice were collected and run as independent replicates. Mice were sacrificed by cervical dislocation, and the optic nerves were severed in complete darkness; brain dissection was performed using illumination from an infrared viewer (FJW Industries, Palatine, IL). SCNs were dissected out, pooled at a density of 5 per tube in 100 ul RNAlater (Ambion, Austin, TX), frozen on dry ice, and stored at â80 degrees C until use. Keywords: SuperSeries This reference Series links data in the following related Series: GSE3746 Circadian skeletal muscle_wt and Clock mutants GSE3748 Circadian liver_wt and Clock mutants

2010-06-12 | E-GEOD-3751 | biostudies-arrayexpress

Differential gene expression in cartilage from the mouse DMM osteoarthritis model

Project description:Transcriptional profiling of mouse cartilage comparing destabilised medial meniscal operated knee joints to sham operated knee joints in both wild type C57Bl/6 and C57Bl/6 ADAMTS5Dcat mice at 1, 2 and 6 weeks post DMM surgery. The goal was to determine the differential gene expression with the onset of arthritis, both early, mid and late timepoints and to assess the gene expression differences when aggrecan loss is prevented in the ADAMTS5Dcat mouse. The overall design of the experiment is to compare DMM (right leg) to sham operated (left leg) cartilage from the same mouse. In order to identify genes involved in early and late arthritis, RNA was collected from cartilage samples from mice at 1, 2 and 6 weeks post surgery. In addition, to isolate genes differentially expressed downstream of aggrecan loss, the RNA as described was collected from C57Bl/6 wild type mice and ADAMTS5Dcat mice. Four mice were used at each timepoint with their left leg being the control Sham and their right leg the experimental DMM. One sample from the wild type 1wk post operation and one ADAMTS5Dcat dye swap were removed from the analysis for technical reasons.

2013-04-11 | E-GEOD-45793 | biostudies-arrayexpress

mRNA Expression Data from Murine Hearts of Clock delta 19/delta 19 Mice over 24 hours in normal light-dark environment (12:12)

Project description:Male Clock delta 19/delta 19 mice were accommodated in normal 12:12 LD condition for one week. Hearts were collected every 4 hours over 24 h starting at 1 h before lights on (ZT23) (ZT23, ZT03, ZT07, ZT11, ZT15, ZT19). The microarray approach allows the investigation of daily transcriptome-wide gene expression changes in hearts over 24 hours.

2021-07-16 | GSE180109 | GEO

Clock rescue in the brain restores 12- and 24- hour rhythms in the liver

Project description:Circadian profiling was performed in mouse livers from three different genotypes/treatments: Wildtype, Clock mutant, and brain-specific Clock rescue. Rescuing Clock specifically in the brain partially rescued robust circadian and harmonic rhythms. Samples were collected every 2 hours for 48 hours from 2-4 mice per time point; samples were pooled and analyzed using Affymetrix Mouse Exon arrays, analyzed at the gene level.

2012-05-31 | E-GEOD-30411 | biostudies-arrayexpress

Identification of de-differentiation and re-development phases during post-pneumonectomy lung growth.

Project description:The medial and cardiac lobes of the right lung and whole right lung of (initially) 10-12 week old C57BL/6 mice were transcriptome profiled at days 0, 3, 7, 14, 28 and 56 post left pneumonectomy, with day 0 being pre-pneumonectomy, and an additional day 56 post sham surgery to control for 8 week aging post left pneumonectomy.

2013-08-09 | GSE39817 | GEO

Transcription profiling of murine presomitic mesoderms of 17 samples at various time points to identify cyclic genes of the mouse segmentation clock

Project description:A microarray time series was generated to identify cyclic genes of the segmentation clock in the mouse. The right posterior half presomitic mesoderms (PSM) from 17 mouse embryos were dissected while the contralateral side of the embryo containing the left PSM was immediately fixed to be analyzed by in situ hybridization using a Lfng probe to order the samples along the segmentation clock oscillation cycle. Probes were produced from RNA extracted from the 17 dissected posterior half PSMs using a two-step amplification protocol and were hybridized to Affymetrix GeneChip MOE430A. The reproducibility of the amplification procedure was initially assessed by comparing array data generated from the right and the left posterior PSM from the same embryo. Because of the symmetry of the paraxial mesoderm along the left-right axis, left and right samples are expected to show overtly similar gene expression. RNA was amplified from three such sample pairs (1, a and b; 2, a and b; 3, a and b) and hybridized on Murine Genome U74Av2 array (MG-U74Av2)

2006-11-06 | E-TABM-163 | biostudies-arrayexpress

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