NSG mice were obtained from Charles River Laboratories [Sulzfeld, Germany]. Mice were kept under specific pathogen-free conditions in individually ventilated cages in a facility controlled according to the Federation of Laboratory Animal Science Association [FELASA] guidelines. Following engraftment on Day 1, mice were presensitised by rectal application of 150 µL of 10% ethanol on Day 8 using a 1-mm cat catheter [Henry Schein, Hamburg, Deutschland]. The catheter was lubricated with Xylocain©Gel 2% [AstraZeneca, Wedel]. Rectal application was performed under general anaesthesia using 4% isoflurane. Post-application mice were kept at an angle of 30° to avoid ethanol dripping. On Day 15, the mice were challenged by rectal application of 50% ethanol following the protocol used on Day 8. For the drug treatments, DES1 [D. E. Shaw Research, New York, USA] and tofacitinib [Merck KGaA, Darmstadt, Germany] were administered daily over one period of 3 days and a second period of 4 days [Days 7–9 and 14–17, respectively], such that each period encompassed one of the two ethanol challenges [on Days 8 and 15]. The dosages were 5 mg/kg/day for DES1 and 5 mg/kg/day for tofacitinib. The dosage of infliximab [Janssen Biotech, Horsham, Pennsylvania, USA] was 6 mg/kg/day, and treatment was limited to Days 7 and 14 only. All therapeutics were dissolved in PBS and administered intraperitoneally.
1 mm cat catheter
Manufactured by Henry Schein
Sourced in Germany
The 1-mm cat catheter is a medical device designed for veterinary use. It is a thin, flexible tube intended for introducing fluids or medications into a cat's body.
Automatically generated - may contain errors
Lab products found in correlation
Xylocain gel 2, by AstraZeneca (4 mentions)
Nsg mice, by Charles River Laboratories (2 mentions)
Sterile saline, by B. Braun (2 mentions)
Infliximab, by Johnson & Johnson (1 mentions)
Nod cg prkdcscid il2rgtm1wjl szj mice, by Charles River Laboratories (1 mentions)
Xylocaine gel 2, by AstraZeneca (1 mentions)
Remicade, by Johnson & Johnson (1 mentions)
Isotype control, by BioLegend (1 mentions)
Nod scid il2rγ null mice, by Charles River Laboratories (1 mentions)
5 protocols using 1 mm cat catheter
1
Ethanol-Induced Colitis Model in NSG Mice
2
Ethanol-induced Colitis Model in NOD-scid IL-2Rγ Mice
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NOD.cg-PrkdcSCID Il2rgtm1Wjl/Szj mice (abbreviated as NOD-scid IL-2Rγnull) were obtained from Charles River Laboratories (Sulzfeld, Germany). Mice were kept under specific pathogen-free conditions in individually ventilated cages. The facility was controlled according to the Federation of Laboratory Animal Science Association (FELASA) guidelines. Following engraftment (day 1), mice were pre-sensitized through rectal application of 150 µl of 10% ethanol on day 8 using a 1-mm cat catheter (Henry Schein, Hamburg, Germany). The catheter was lubricated with Xylocain© Gel 2% (AstraZeneca, Wedel). Rectal application was performed under general anesthesia using 4% isoflurane. Post application, mice were kept at an angle of 30° to avoid ethanol dripping. On days 15 and 18, mice were challenged with rectal application of 50% ethanol following the protocol described for day 8. Mice were killed on day 21. Pitrakinra (10 µg in 0.5% methylcellulose, 0.05% Tween-80) in PBS (Zadeh-Khorasani et al., 2013 (link)) was applied on days 7-9 and 14-21. In these groups, sterile saline (B. Braun Melsungen AG, Germany) served as control. Infliximab [6 mg/kg (Remicade©, Janssen, The Netherlands)] was applied on days 7, 14 and 17. An isotype antibody (human IgG1, kindly provided by, MorphoSys AG) was used as control. All treatments were applied intraperitoneally.
3
Ethanol-Induced Colitis Model in NOD IL-2Rγnull Mice
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NOD IL-2Rγnull mice were obtained from Charles River Laboratories (Sulzfeld, Germany). Mice were kept under specific pathogen-free conditions in individually ventilated cages in a facility controlled according to the Federation of Laboratory Animal Science Association (FELASA) guidelines. Following engraftment (day 1) mice were pre-sensitized by rectal application of 150 µl of 10% ethanol on day 8 using a 1 mm cat catheter (Henry Schein, Hamburg, Germany). The catheter was lubricated with Xylocaine©Gel 2% (AstraZeneca, Wedel). The rectal application was performed under general anesthesia using 4% isoflurane. Post application mice were kept at an angle of 30° to avoid ethanol dripping. On day 15 and 18 mice were challenged by rectal application of 50% ethanol following the protocol of day 8. Mice were sacrificed on day 21. Pitrakinra (10 µg in 0.5% Methylcellulose, 0.05% TWEEN 80 in PBS) [34 (link)] was applied on day 7–9 and 14–21. Sterile Saline (B. Braun Melsungen AG, Germany) served as a control. Infliximab, [6 mg/kg (Remicade©, Janssen The Netherlands)] and isotype control (30 µg in 200 µl PBS, Morphosys AG, Planegg, Germany) were applied on day 7 and 14. All treatments were applied intraperitoneally.
4
Ethanol-Induced Colitis Model in NSG Mice
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NSG mice were obtained from Charles River Laboratories (Sulzfeld, Germany). Mice were kept under specific pathogen–free conditions in individually ventilated cages in a facility controlled according to Federation of Laboratory Animal Science Association (FELASA) guidelines. After engraftment on day 1, mice were presensitized by rectal application of 150 µL of 10% ethanol on day 8 using a 1-mm cat catheter (Henry Schein, Hamburg, Germany). The catheter was lubricated with Xylocain Gel 2% (AstraZeneca, Wedel, Germany). Rectal application was performed under general anesthesia using 4% isofluran. Postapplication, mice were kept at an angle of 30° to avoid ethanol dripping. On day 15, mice were challenged by rectal application of 50% ethanol following the protocol of day 8. On day 18, mice were killed. Adalimumab was provided by Sanofi-Aventis Deutschland GmbH (Frankfurt am Main, Germany) and was applied in PBS (30 mg/kg/d) on days 7 and 14. The control groups were injected with 30 mg/kg of the isotype antibody (Sanofi-Aventis Deutschland GmbH, Frankfurt am Main, Germany) on days 7 and 14.
5
Ethanol-Induced Colitis Model in NOD/scid IL-2Rγ Mice
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NOD/scid IL-2Rγnull mice were obtained from Charles River Laboratories (Sulzfeld, Germany). Mice were kept under specific pathogen-free conditions in individually ventilated cages in a facility controlled according to the Federation of Laboratory Animal Science Association guidelines. Following engraftment (day 1), mice were presensitized by rectal application of 150 µL of 10% ethanol on day 8 using a 1-mm cat catheter (Henry Schein, Hamburg, Germany). The catheter was lubricated with Xylocain Gel 2% (AstraZeneca, Wedel). Rectal application was performed under general anaesthesia using 4% Isofluran. Postapplication, mice were kept at an angle of 30° to avoid ethanol dripping. On days 15 and 18, mice were challenged by rectal application of 50% ethanol following the protocol of day 8. Mice were killed on day 21.
Mice were treated by intraperitoneal application of 30 µg of anti-CD1a antibody (Clone OKT6, BioXcell, West Lebanon, USA) or 30 µg of isotype control (Biolegend, San Diego, CA, USA) on days 7, 14, and 17.
Mice were treated by intraperitoneal application of 30 µg of anti-CD1a antibody (Clone OKT6, BioXcell, West Lebanon, USA) or 30 µg of isotype control (Biolegend, San Diego, CA, USA) on days 7, 14, and 17.
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