Intraduodenal Cannulation in a Rat Model for Immunopathology Studies

Published: October 31, 2023

Abstract

Source: Trevaskis, N. L. et al., The Mesenteric Lymph Duct Cannulated Rat Model: Application to the Assessment of Intestinal Lymphatic Drug Transport. J. Vis. Exp. (2015)

This video demonstrates intraduodenal cannulation in a rat model. After anesthetizing the rat, the duodenum is located and a small puncture is created. A J-shaped cannula with a beveled tip is carefully inserted and secured, and the incision is closed. The cannulated rat model enables intra-intestinal infusion for immunopathology studies.

Protocol

All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board. 1. Preparations the Day Before the Surgical Procedure Fast the rat the night before surgery if required. Ensure the rat has free access to water. Prepare the solutions to be administered to the rat. Prepare a rehydration solution such as sterile saline or Ringers solution. Prepare anestheti…

Representative Results

Figure 1. Diagrammatic representation of the shape of the beveled tip of a carotid artery or lymph cannula, and the J-shaped beveled tip of a duodenal cannula. Figure 2. Photographs of (A) the abdomen shaved in preparation to cannulate the lymp…

開示

The authors have nothing to disclose.

Materials

Sterile saline Baxter healthcare AHB 1307 Any brand can be used. Example here is Baxter 100 ml saline bags, box of 50
70 % ethanol in water Any Any brand can be used
Chlorhexidine gluconate solution (Microshield 4) Livingstone International JJ60243L Any brand can be used. http://www.livingstone.com.au/?PG=search_result&CAT=6&search
Betadine solution Livingstone International BU0510 Any brand can be used. http://www.livingstone.com.au/?PG=search_result&CAT=6&search
Ilium Ketamil (Ketamine 100 mg/ml) PROVET VICTORIA  KETA I 1 http://www.provet.com.au/
Ilium Xylazil (Xylazine 100 mg/ml) PROVET VICTORIA  TRO-3828 http://www.provet.com.au/
ACP 10 Injection (Acepromazine 10 mg/ml) PROVET VICTORIA  VTG-DACP010020 http://www.provet.com.au/
Heparin (35000I.U. in 35 mL) Sigma Pharmaceuticals 337220 http://sigmaco.com.au/
Ethylenediaminetetraacetic acid (EDTA) disodium salt dihydrate Sigma-Aldrich E1644 Any brand can be used. Example here is disodium salt of EDTA from Sigma. 
Polyethylene (PE) cannula o.d. 0.96 mm x i.d. 0.58 mm Microtube extensions PE8050 Any brand can be used. Example here is PE tubing 0.8×0.5 mm, 30 m
Polyethylene (PE) cannula o.d. 0.8 mm x i.d. 0.5 mm Microtube extensions PE9658 Any brand can be used. Example here is PE tubing 0.96×0.58 mm, 30 m
Ruler Any Any brand can be used
Markers Any Any brand can be used
Cigarette lighter Any Any brand can be used
Cyanoacrylate glue Any Any brand can be used
23 gauge needles Livingstone International DN23GX0.75LV Any brand can be used. Example here is Livingstone Disposable Needle, Sterile, 23GX0.75inch, 100/BOX. http://www.livingstone.com.au/?PG=search_result&CAT=6&search
=DN23GX0.75LV
25 gauge needles Livingstone International DN25GX1.0LV Any brand can be used. Example here is Livingstone Disposable Needle, Sterile, 25GX1.0inch, 100/BOX. http://www.livingstone.com.au/?PG=search_result&CAT=6&search
=DN25GX1.0LV
1 ml syringe Livingstone International T3SS01TA Any brand can be used. Example here is Terumo syringe 1 ml Slip Tuberculin 100/Box. http://www.livingstone.com.au/?PG=search_result&CAT=6&search           =T3SS01TA
10 ml syringe Livingstone International T3SS10SA Any brand can be used. Example here is Terumo syringe 10 ml Slip 100/Box. http://www.livingstone.com.au/?PG=search_result&CAT=6&search          =T3SS10SA
Gauze swabs Livingstone International GSC075 Any brand can be used and cut to required size. Example here is gauze swabs cotton filled 7.5×7.5 cm, 8 ply. http://www.livingstone.com.au/?PG=search_result&CAT=6&search          =GSC075
Heating pad Ratek WT1 Any brand that keeps temperature at 37C can be used. Example here is Ratek warming tray.
Surgical light Harvard Apparatus 72-0215 with 72-0267 Any brand can be used. Example here is Harvard apparatus V-Lux 1000 Cold Light Source with Bifurcated Gooseneck Light Guide, Black, 4.7 mm fiber diameter (each arm). http://www.harvardapparatus.com/webapp/wcs/stores/servlet/product_11051_10001_50601_
Surgical microscope Zeiss 495005-0014-000 Any brand can be used. Example here is Zeiss Stereomicroscope Stemi 2000-C with Stand S Double Spot and KL 300 LED. https://www.micro-shop.zeiss.com/?l=en&p=us&f=e&i=10143
Silk suture Livingstone International DTSK163019F4 Any brand can be used. Example here is * Email this item to my friend                   3/8 Circle Reverse Cut Silk Suture 3/0 Thread 19mm. http://www.livingstone.com.au/?PG=search_result&CAT=6&search          =DTSK163019F4
Scalpel blades Fine Science Tools (FST) 10020-00 Any brand can be used. Example here is FST Scalpel Blade #20. http://www.finescience.ca/Special-Pages/Products.aspx?ProductId=191
Scalpel handle Fine Science Tools (FST) 10004-13 Any brand can be used. Example here is FST Scalpel Handle #4. http://www.finescience.ca/Special-Pages/Products.aspx?ProductId=298&CategoryId=51
1 x Small surgical scissors Fine Science Tools (FST) 14060-09 Any brand can be used. Example here is FST Fine Scissors, 9 cm with 21 mm cutting edge, sharp, straight. http://www.finescience.ca/Special-Pages/Products.aspx?ProductId=40&CategoryId=17
2 x Forceps with serrated curved tip Fine Science Tools (FST) 11001-13 Any brand can be used. Example here is FST 13 cm standard pattern forceps with curved 2.8×1.4 mm tip. http://www.finescience.ca/Special-Pages/Products.aspx?ProductId=405&CategoryId=32
2 x Hemostats Fine Science Tools (FST) 13010-12 Any brand can be used. Not all operators use the hemostats. Example here is FST 12 cm Micro-Mosquito Hemostats with 20 mm length x 1.3 mm width serrated, straight tip. http://www.finescience.ca/Special-Pages/Products.aspx?ProductId=377&CategoryId=33
1 x Suture needle holder Fine Science Tools (FST) 12001-13 Any brand can be used. Example here is FST 13cm Hasley Needle Holder with 16 mm length x 1.9 mm width tip. http://www.finescience.ca/Special-Pages/Products.aspx?ProductId=254&CategoryId=70

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記事を引用
Intraduodenal Cannulation in a Rat Model for Immunopathology Studies. J. Vis. Exp. (Pending Publication), e21760, doi: (2023).

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