Rabbit Intraductal Injection: Localized Delivery of Solution of Interest into the Rabbit Mammary Gland

Abstract

Source: Clark et. al., Intraductal Delivery to the Rabbit Mammary Gland. J. Vis. Exp. (2017).

In this video we describe a technique of administering a solution of interest into the mammary duct of a rabbit and confirm the delivery by high-resolution ultrasound imaging of contrast agents.

Protocol

1. Preoperative Preparation

1. Record the body weight of each rabbit. As with all preclinical studies, monitor animal weights regularly to assess potential toxicity.
2. Prior to anesthetizing the rabbit, fill a 50 mL conical tube with commercially available ultrasound gel and spin at 500 x g for 30 s; there should be no visible bubbles in the gel upon completion of the centrifugation.
3. Administer glycopyrrolate subcutaneously at a dose of 0.1 mg/kg and acepromazine intramuscularly at a dose of 0.75 mg/kg. Wait 15-20 min for the sedative to take effect while monitoring vital signs and behavior.
   NOTE: Glycopyrrolate is an....

Materials

List of materials used in this article

Name	Company	Catalog Number	Comments
MicroMarker non-targeted contrast reagent	VisualSonics	VS-11694
Luer Lock 1 mL Syringes	BD	309628
Glycopyrrolate 0.2 mg/mL	Wedgewood Compounding Pharmacy	GLYCOP-INJ013VC	6 month shelf life, supply may be limited.
Ketamine HCL 100 mg/mL	Animal Health International	21250699	http:// www.animalhealthinternational.com/
Acepromazine 10 mg/mL	Animal Health International	17640541
Xylazine 20 mg/mL	Animal Health International	20101547
Hair Removing Cream	Veet		Sensitive skin solution. Available through local retailers.
Blunt tip infusion needles	Sai Infusion Technology	B14-50	http://www.sai-infusion.com/ collections/blunt-needles
Veterinary Pulse Oximeter	EdanUSA	VE-H100B	http://www.edanusa.com/Product/ VE-H100B-Veterinary-PulseOximeter.html
Warm Water Pump	Gaymar	TP700
Warm Water Blanket	Animal Health International	21232696	Maxi-Therm Lite Warming Pads