GEO DataSets

(Submitter supplied) Multi-walled carbon nanotubes (MWCNTs) are extensively produced and used in composite materials and electronic applications, thus increasing risk of worker and consumer exposure. MWCNTs are an inhomogeneous group of nanomaterials that exist in various lengths, shapes and with different metal compositions, which makes hazard evaluation difficult. However, several studies suggest that length plays an important role in the toxicity induced by MWCNTs. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

139 Samples

Download data: TXT

(Submitter supplied) Mice were aspirated with multiwalled carbon nanotubes in four doses ranging from 10 µg to 80 µg, plus control, and sacrificed after 1, 7, 28, and 56 days. RNA was extracted from the lungs and expression profilling by microarray was performed.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL4134

160 Samples

Download data: TXT

(Submitter supplied) To further development of our gene expression approach to assess the effects of manufactured nanomaterials at the transcriptional level, we have employed whole genome microarray expression profiling to discuss the differences of the pulmonary and pleural

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL7294

15 Samples

Download data: TXT

(Submitter supplied) Adverse lung effects in rodents following pulmonary exposure to multi-walled carbon nanotubes (MWCNT) are well documented. However, systemic effects are less understood. Prospective epidemiological studies have shown increased cardiovascular disease risk after pulmonary exposure to airborne particles, which has led to concerns that inhalation exposure to MWCNT might pose similar risks. We used high-content genomics tools to compare hepatic responses after exposure to a short, entangled MWCNT to the hepatic responses after exposure to a long, stiffer MWCNT at the global transcriptomic level. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

60 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL22740

144 Samples

Download data: TXT

(Submitter supplied) In this work we study the pulmonary toxicological properties of carbon nanotubes using molecular toxicological approache. For this, we exposed Sprague Dawley rats by nose-only inhalation 6 hours/day, 5 days/week for 4 weeks. Lung samples have been collected up to 180 days after the end of exposure and transcriptomics analysis were performed.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL22740

72 Samples

Download data: TXT

(Submitter supplied) In this work we study the pulmonary toxicological properties of carbon nanotubes using molecular toxicological approache. For this, we exposed Sprague Dawley rats by nose-only inhalation 6 hours/day, 5 days/week for 4 weeks. Lung samples have been collected up to 180 days after the end of exposure and transcriptomics analysis were performed.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL22740

72 Samples

Download data: TXT

(Submitter supplied) Pulmonary exposure to multiwalled carbon nanotubes (MWCNT) induces an inflammatory and rapid fibrotic response, although the long-term signaling mechanisms are unknown. The aim of this study was to examine the effects of 1, 10, 40, or 80 µg MWCNT administered by pharyngeal aspiration on bronchoalveolar lavage (BAL) fluid for polymorphonuclear cell (PMN) infiltration, lactate dehydrogenase (LDH) activity, and lung histopathology for inflammatory and fibrotic responses in mouse lungs 1 mo, 6 mo, and 1 yr postexposure. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL17400

139 Samples

Download data: CEL

(Submitter supplied) To further development of our gene expression approach to assess the effects of manufactured nanomaterials at the transcriptional level, we have employed whole genome microarray expression profiling as a discovery platform to identify genes with the potential to distinguish characterization of physicochemical properties of impurity-free single-wall carbon nanotubes (SWCNTs). We have prepared two types of dispersed the SWCNTs, namely relatively small bundles and a short linear shape (CNT-1) and large bundles and a long linear shape (CNT-2), and attempted to characterize time-dependent changes in the gene expression of lung tissues until 90 days after intratracheal instillation with SWCNTs suspensions at 0.4 mg injected dose per rat.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL7294

15 Samples

Download data: TXT

(Submitter supplied) To further development of our gene expression approach to assess the effects of manufactured nanomaterials at the transcriptional level, we have employed whole genome microarray expression profiling as a discovery platform to identify genes with the potential to distinguish characterization of physicochemical properties of impurity-free single-wall carbon nanotubes (SWCNTs), namely, relatively small bundles and a short linear shape (CNT-1) and large bundles and a long linear shape (CNT-2).

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL7294

3 Samples

Download data: TAR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

44 Samples

Download data: TXT

(Submitter supplied) There is great interest in substituting animal with in vitro experimentation in human health risk assessment, but there are rather few comparisons of in vitro and in vivo biological responses to engineered nanomaterials (ENM). We used high-content genomics tools, to compare in vivo pulmonary responses of multiwalled carbon nanotubes (MWCNT) to those in vitro in cultured lung epithelial cells at the global transcriptomic level. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

22 Samples

Download data: TXT

(Submitter supplied) There is great interest in substituting animal with in vitro experimentation in human health risk assessment, but there are rather few comparisons of in vitro and in vivo biological responses to engineered nanomaterials (ENM). We used high-content genomics tools, to compare in vivo pulmonary responses of multiwalled carbon nanotubes (MWCNT) to those in vitro in cultured lung epithelial cells at the global transcriptomic level. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

22 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

233 Samples

Download data: TXT

(Submitter supplied) Previous studies have shown that TiO2NPs induce lung inflammation in mice and have suggested that the degree of inflammation varies with their size and other physical and chemical properties, e.g., shapes, surface modifications and surface charge. It is currently unknown if the observed inflammation in mouse lungs following exposure to TiO2NPs will cause any disease in the long term. This study examined mouse lung responses to six individual TiO2NPs of varying sizes (10, 20 and 300 nm), surface modifications and shapes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

40 Samples

Download data: TXT

(Submitter supplied) Previous studies have shown that TiO2NPs induce lung inflammation in mice and have suggested that the degree of inflammation varies with their size and other physical and chemical properties, e.g., shapes, surface modifications and surface charge. It is currently unknown if the observed inflammation in mouse lungs following exposure to TiO2NPs will cause any disease in the long term. This study examined mouse lung responses to six individual TiO2NPs of varying sizes (10, 20 and 300 nm), surface modifications and shapes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

40 Samples

Download data: TXT

(Submitter supplied) Previous studies have shown that TiO2NPs induce lung inflammation in mice and have suggested that the degree of inflammation varies with their size and other physical and chemical properties, e.g., shapes, surface modifications and surface charge. It is currently unknown if the observed inflammation in mouse lungs following exposure to TiO2NPs will cause any disease in the long term. This study examined mouse lung responses to six individual TiO2NPs of varying sizes (10, 20 and 300 nm), surface modifications and shapes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

40 Samples

Download data: TXT

(Submitter supplied) Previous studies have shown that TiO2NPs induce lung inflammation in mice and have suggested that the degree of inflammation varies with their size and other physical and chemical properties, e.g., shapes, surface modifications and surface charge. It is currently unknown if the observed inflammation in mouse lungs following exposure to TiO2NPs will cause any disease in the long term. This study examined mouse lung responses to six individual TiO2NPs of varying sizes (10, 20 and 300 nm), surface modifications and shapes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

37 Samples

Download data: TXT

(Submitter supplied) Previous studies have shown that TiO2NPs induce lung inflammation in mice and have suggested that the degree of inflammation varies with their size and other physical and chemical properties, e.g., shapes, surface modifications and surface charge. It is currently unknown if the observed inflammation in mouse lungs following exposure to TiO2NPs will cause any disease in the long term. This study examined mouse lung responses to six individual TiO2NPs of varying sizes (10, 20 and 300 nm), surface modifications and shapes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

39 Samples

Download data: TXT

(Submitter supplied) Previous studies have shown that TiO2NPs induce lung inflammation in mice and have suggested that the degree of inflammation varies with their size and other physical and chemical properties, e.g., shapes, surface modifications and surface charge. It is currently unknown if the observed inflammation in mouse lungs following exposure to TiO2NPs will cause any disease in the long term. This study examined mouse lung responses to six individual TiO2NPs of varying sizes (10, 20 and 300 nm), surface modifications and shapes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL7202

37 Samples

Download data: TXT