Biomaterial Database

Tissue uptake of 3H-methylprednisolone in acute myocardial ischemia. 1977

A M Lefer, and M Okuda, and M L Ogletree

The tissue uptake of 3H-methylprednisolone (3H-MP) was studied in anesthetized cats during acute myocardial ischemia 1 and 2 hours after injection of 3H-MP. There was a rapid uptake of 3H-MP by many tissues. Liver, kidney, and pancreas exhibited tissue/perfusion ratios of 3 to 7, heart, lungs, and intestine about 2, spleen, adrenal, and aorta 1 to 2, and skeletal muscle and omentum less than 1. Very similar tissue uptakes occurred in cats subjected to myocardial ischemia and sham myocardial ischemia at 1 and 2 hours. Plasma clearances of 3H-MP was not significantly altered either 1 or 2 hours after the onset of myocardial ischemia. Although ischemic myocardial tissue took up less than nonischemic myocardial tissue, this region accumulated significant amounts of 3H-MP. Myocardial tissue metabolized only about 15 to 20 per cent of the 3H-MP taken up after 2 hours. These data indicate that in acute myocardial ischemia, myocardial tissue takes up large amounts of exogenously administered glucocorticoid, most of which remains in the native form during the early phase of acute myocardial infarction.

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
D008099	Liver	A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.	Livers
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
D008297	Male		Males
D008775	Methylprednisolone	A PREDNISOLONE derivative with similar anti-inflammatory action.	6-Methylprednisolone,Medrol,Metipred,Urbason,6 Methylprednisolone
D009132	Muscles	Contractile tissue that produces movement in animals.	Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009206	Myocardium	The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.	Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D010179	Pancreas	A nodular organ in the ABDOMEN that contains a mixture of ENDOCRINE GLANDS and EXOCRINE GLANDS. The small endocrine portion consists of the ISLETS OF LANGERHANS secreting a number of hormones into the blood stream. The large exocrine portion (EXOCRINE PANCREAS) is a compound acinar gland that secretes several digestive enzymes into the pancreatic ductal system that empties into the DUODENUM.
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat