Related Experiment Video
Updated: Jul 22, 2026
10:23
Urinary Tract Infection in a Small Animal Model: Transurethral Catheterization of Male and Female Mice
Published on: December 1, 2017
18.3K
Individual recognition in mice mediated by major urinary proteins
J L Hurst1, C E Payne, C M Nevison
1Department of Veterinary Clinical Science and Animal Husbandry, University of Liverpool, Leahurst, Neston CH64 7TE, UK. jane.hurst@liverpool.ac.uk
Nature
|December 12, 2001
Summary
Urinary major urinary proteins (MUPs) are crucial for individual scent recognition in wild mice. Their diverse expression patterns significantly contribute to how mice identify each other through smell.
Area of Science:
- Animal behavior
- Olfactory communication
- Mammalian social recognition
Background:
- Individual recognition is vital for social behavior in mammals.
- Mammalian scent signals often derive from the major histocompatibility complex (MHC).
- Rodent urine contains major urinary proteins (MUPs) that bind and release pheromones.
Purpose of the Study:
- To investigate the role of MUPs in individual recognition in wild house mice (Mus domesticus).
- To determine if MUPs contribute to the complexity of olfactory individuality signals.
Main Methods:
- Analysis of MUP expression diversity in wild house mice.
- Assessment of MUPs' contribution to urinary odor profiles.
- Behavioral assays to test individual recognition based on MUPs (implied).
Main Results:
- Combinatorial diversity of MUP expression in wild mice is comparable to MHC diversity.
- MUPs are present at significantly higher concentrations than MHC-related odorants.
- Urinary MUPs play a significant role in the individual recognition mechanism of wild house mice.
Conclusions:
- MUPs are a key component of the olfactory system for individual recognition in mice.
- The diversity and abundance of MUPs contribute substantially to mammalian scent communication.
- Further research into MUPs may shed light on human olfactory recognition mechanisms.
Related Concept Videos
01:47Osmoregulation in Insects
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
01:23Transcellular Transport of Solutes
Transcellular transport of solutes is the movement of substances like monosaccharides and amino acids through polarized cells. This transport mechanism is primarily seen in epithelial and endothelial cells aided by membrane transport proteins such as channels and transporters. The tight junctions between these cells confine the membrane proteins to the two sides of the cell. The epithelial cells have distinct apical and basolateral domains. In contrast, the endothelial cells show the luminal...
01:28Reabsorption and Secretion in the PCT
The Proximal Convoluted Tubule, or PCT, plays a pivotal role in the body's filtration system. They are primarily responsible for reabsorbing solutes and water from the filtered fluid produced by the glomeruli. Most of the filtered water, ions, and organic solutes such as glucose and amino acids are reabsorbed by the PCT.
Transport mechanisms involving sodium ions (Na+) contribute significantly to solute reabsorption. These mechanisms include symport and antiport processes.
A key example is the...
Transport mechanisms involving sodium ions (Na+) contribute significantly to solute reabsorption. These mechanisms include symport and antiport processes.
A key example is the...
01:22Ureters
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
01:19Absorption of Nutrients
Absorption refers to taking dietary nutrients from the intestinal lumen for transportation throughout the body. After digestion in the small intestine, carbohydrates, proteins, and fats are broken down into simpler forms. These essential macronutrients and other vital substances, such as vitamins, minerals, and water, are then prepared for absorption into the bloodstream.
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
01:29Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration
The kidneys are vital organs responsible for regulating blood filtration, waste excretion, and fluid balance, all of which are crucial for maintaining homeostasis. Renal physiology examines renal blood flow, glomerular filtration, and urine formation, ensuring the body’s internal environment remains stable.Renal Blood FlowThe kidneys receive about 20-25% of the cardiac output, typically around 1200 mL of blood per minute in an average adult. Blood flows into the kidneys through the renal...