Biomaterial Database

Glucose transport across the gill of the rainbow trout, Salmo gairdneri. 1983

P Furspan, and J Isaia

Glucose fluxes across the gills were measured in freshwater-adapted trout (Salmo gairdneri) using an in vitro, perfused-head preparation. A large asymmetry was observed for the primary lamellar pathway, glucose permeability in the serosa-to-mucosa direction being up to 24 times greater than the permeability in the mucosa-to-serosa direction. Chloride cells appeared to possess a maximal rate of transport, or TMG, of 79 mumol/hr per 100 g. Phlorizin, phloretin and, to a lesser extent, harmaline caused an increase in the rate of glucose efflux. The results suggest that the tubulo-vesicular reticulum, into which plasma is introduced under low pressure, may be regarded as a reabsorption site for glucose in a way similar to the nephron proximal tubule. Thus, essential molecules such as glucose are removed while excess or non-essential substances are excreted into the external medium.

UI	MeSH Term	Description	Entries
D008757	Methylglucosides		Methylglucopyranosides
D010693	Phloretin	A natural dihydrochalcone found in apples and many other fruits.
D010695	Phlorhizin		Phloridzin,Phlorizin
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002712	Chlorides	Inorganic compounds derived from hydrochloric acid that contain the Cl- ion.	Chloride,Chloride Ion Level,Ion Level, Chloride,Level, Chloride Ion
D005880	Gills	Paired respiratory organs of fishes and some amphibians that are analogous to lungs. They are richly supplied with blood vessels by which oxygen and carbon dioxide are exchanged directly with the environment.	Gill
D005947	Glucose	A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement.	Dextrose,Anhydrous Dextrose,D-Glucose,Glucose Monohydrate,Glucose, (DL)-Isomer,Glucose, (alpha-D)-Isomer,Glucose, (beta-D)-Isomer,D Glucose,Dextrose, Anhydrous,Monohydrate, Glucose
D006246	Harmaline	A beta-carboline alkaloid isolated from seeds of PEGANUM.	3H-Pyrido(3,4-b)indole, 4,9-dihydro-7-methoxy-1-methyl-,Dihydroharmine,Harmidine
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012487	Salmonidae	A family of anadromous fish comprising SALMON; TROUT; whitefish; and graylings. They are the most important food and game fishes. Their habitat is the northern Atlantic and Pacific, both marine and inland, and the Great Lakes. (Nelson: Fishes of the World, 1976, p97)	Graylings,Thymallus,Whitefish,Salmonids,Grayling,Salmonid