Biomaterial Database

Blood flow to the rat rectum: its intramural distribution and the response to injury. 1988

R A Sparrow, and H M Connolly

Department of Human Morphology, University of Nottingham Medical School, Queen's Medical Centre.

Rectal blood flow was measured in rats using radioactive microspheres. Subsequent sectioning of the material allowed the intramural distribution of that flow to be assessed. Total flow increased with increasing distance from the anorectal junction but the distribution of flow remained the same with the mucosa receiving slightly less than two thirds of the total. Injury to the mucosa, produced by a surfactant administered as a suppository, doubled total flow in areas where the damage was most severe and revealed an ability of the intramural vascular beds to react independently. Flow to the mucosa increased both absolutely and proportionately and this entirely accounted for the increase in total flow. Flow to the muscularis externa was unaltered in absolute terms, but fell as a percentage of total flow.

UI	MeSH Term	Description	Entries
D007413	Intestinal Mucosa	Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI.	Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D008297	Male		Males
D008863	Microspheres	Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.	Latex Beads,Latex Particles,Latex Spheres,Microbeads,Bead, Latex,Beads, Latex,Latex Bead,Latex Particle,Latex Sphere,Microbead,Microsphere,Particle, Latex,Particles, Latex,Sphere, Latex,Spheres, Latex
D011092	Polyethylene Glycols	Polymers of ETHYLENE OXIDE and water, and their ethers. They vary in consistency from liquid to solid depending on the molecular weight indicated by a number following the name. They are used as SURFACTANTS, dispersing agents, solvents, ointment and suppository bases, vehicles, and tablet excipients. Some specific groups are NONOXYNOLS, OCTOXYNOLS, and POLOXAMERS.	Macrogols,Polyoxyethylenes,Carbowax,Macrogol,Polyethylene Glycol,Polyethylene Oxide,Polyethyleneoxide,Polyglycol,Glycol, Polyethylene,Glycols, Polyethylene,Oxide, Polyethylene,Oxides, Polyethylene,Polyethylene Oxides,Polyethyleneoxides,Polyglycols,Polyoxyethylene
D011919	Rats, Inbred Strains	Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.	August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D012007	Rectum	The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.	Rectums
D012039	Regional Blood Flow	The flow of BLOOD through or around an organ or region of the body.	Blood Flow, Regional,Blood Flows, Regional,Flow, Regional Blood,Flows, Regional Blood,Regional Blood Flows
D003902	Detergents	Purifying or cleansing agents, usually salts of long-chain aliphatic bases or acids, that exert cleansing (oil-dissolving) and antimicrobial effects through a surface action that depends on possessing both hydrophilic and hydrophobic properties.	Cleansing Agents,Detergent Pods,Laundry Detergent Pods,Laundry Pods,Syndet,Synthetic Detergent,Agent, Cleansing,Agents, Cleansing,Cleansing Agent,Detergent,Detergent Pod,Detergent Pod, Laundry,Detergent Pods, Laundry,Detergent, Synthetic,Detergents, Synthetic,Laundry Detergent Pod,Laundry Pod,Pod, Detergent,Pod, Laundry,Pod, Laundry Detergent,Pods, Detergent,Pods, Laundry,Pods, Laundry Detergent,Synthetic Detergents
D000077423	Polidocanol	An alkyl polyglycol ether of LAURYL ALCOHOL, chemically defined as an alcohol ethoxylate having an average alkyl chain of 12–14 carbon atoms, and an ethylene oxide chain of 9 ethylene oxide units. It is used as a detergent, and medically as a local anesthetic, and as a sclerosing agent for the treatment of ESOPHAGEAL AND GASTRIC VARICES and VARICOSE VEINS.	Aethoxysclerol,Aethoxysklerol,Aetoxisclerol,Atossisclerol,Atoxysclerol,Brij 30,Brij-30,Dodecyl Ethyleneglycol Monoether,Ethoxysclerol,Hydroxypolyethoxydodecane,Laureth,Laureth 9,Laureth-1,Laureth-4,Laureth-7,Laureth-9,Lauromacrogol,Lauromacrogol 400,Lauromacrogols,Lubrol 12A9,Lubrol-PX,Nonaethylene Glycol Monododecyl Ether,Nonaethyleneglycol Monododecyl Ether,Polyethylene Glycol Monododecyl Ether,Polyethylene Glycol-7-lauryl Ether,Polyoxyethylene 9-lauryl Ether,Polyoxyethylene Lauryl Ether,Polyoxyethylene(4) Lauryl Ether,Polyoxyethylene-4-dodecyl Ether,Polyoxyethylenedodecyl Ether,Tetraethylene Glycol Dodecyl Ether,Tetraethyleneglycol Lauryl Ether,Thesit,alpha-Dodecyl-omega-hydroxypoly(oxy-1,2ethanediyl),Brij30,Dodecyl Ethyleneglycol Monoethers,Ether, Nonaethyleneglycol Monododecyl,Ether, Polyethylene Glycol-7-lauryl,Ether, Polyoxyethylene 9-lauryl,Ether, Polyoxyethylene Lauryl,Ether, Polyoxyethylene-4-dodecyl,Ether, Tetraethyleneglycol Lauryl,Ethyleneglycol Monoether, Dodecyl,Laureth 1,Laureth 4,Laureth 7,Laureths,Lauryl Ether, Tetraethyleneglycol,Lubrol PX,Monododecyl Ether, Nonaethyleneglycol,Monoether, Dodecyl Ethyleneglycol,Nonaethyleneglycol Monododecyl Ethers,Polidocanols,Polyethylene Glycol 7 lauryl Ether,Polyethylene Glycol-7-lauryl Ethers,Polyoxyethylene 4 dodecyl Ether,Polyoxyethylene 9 lauryl Ether,Polyoxyethylene 9-lauryl Ethers,Polyoxyethylene Lauryl Ethers,Polyoxyethylenedodecyl Ethers,Tetraethyleneglycol Lauryl Ethers