Dissociation of lipolysis from the levels of cyclic AMP in rat epididymal fat cells. 1977

M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli

Two compounds, theophylline and 8-aza-9-furfuryl-adenine (SQ 4665), were found to maximally stimulate lipolysis in preparations of rat epididymal fat cells in the absence of exogenous hormones. Cyclic AMP levels in lipocytes maximally stimulated by either agent alone were unchanged from control levels. In contrast, lipolysis stimulated by either epinephrine alone or in combination with several cyclic nucleotide phosphodiesterase inhibitors correlated well with increases in the levels of cyclic AMP observed. These results suggest the presence of a non-cyclic AMP dependent pathway for the stimulation of lipolysis in rat epididymal fat cells.

UI MeSH Term Description Entries
D008297 Male Males
D010726 Phosphodiesterase Inhibitors Compounds which inhibit or antagonize the biosynthesis or actions of phosphodiesterases. Phosphodiesterase Antagonists,Phosphodiesterase Inhibitor,Phosphoric Diester Hydrolase Inhibitors,Antiphosphodiesterases,Inhibitor, Phosphodiesterase
D004822 Epididymis The convoluted cordlike structure attached to the posterior of the TESTIS. Epididymis consists of the head (caput), the body (corpus), and the tail (cauda). A network of ducts leaving the testis joins into a common epididymal tubule proper which provides the transport, storage, and maturation of SPERMATOZOA.
D004837 Epinephrine The active sympathomimetic hormone from the ADRENAL MEDULLA. It stimulates both the alpha- and beta- adrenergic systems, causes systemic VASOCONSTRICTION and gastrointestinal relaxation, stimulates the HEART, and dilates BRONCHI and cerebral vessels. It is used in ASTHMA and CARDIAC FAILURE and to delay absorption of local ANESTHETICS. Adrenaline,4-(1-Hydroxy-2-(methylamino)ethyl)-1,2-benzenediol,Adrenaline Acid Tartrate,Adrenaline Bitartrate,Adrenaline Hydrochloride,Epifrin,Epinephrine Acetate,Epinephrine Bitartrate,Epinephrine Hydrochloride,Epinephrine Hydrogen Tartrate,Epitrate,Lyophrin,Medihaler-Epi,Acetate, Epinephrine
D004974 Etazolate A potent phosphodiesterase inhibitor proposed as an antipsychotic agent. Etazolate Hydrochloride,SQ-20009,Hydrochloride, Etazolate,SQ 20009,SQ20009
D000225 Adenine A purine base and a fundamental unit of ADENINE NUCLEOTIDES. Vitamin B 4,4, Vitamin B,B 4, Vitamin
D000242 Cyclic AMP An adenine nucleotide containing one phosphate group which is esterified to both the 3'- and 5'-positions of the sugar moiety. It is a second messenger and a key intracellular regulator, functioning as a mediator of activity for a number of hormones, including epinephrine, glucagon, and ACTH. Adenosine Cyclic 3',5'-Monophosphate,Adenosine Cyclic 3,5 Monophosphate,Adenosine Cyclic Monophosphate,Adenosine Cyclic-3',5'-Monophosphate,Cyclic AMP, (R)-Isomer,Cyclic AMP, Disodium Salt,Cyclic AMP, Monoammonium Salt,Cyclic AMP, Monopotassium Salt,Cyclic AMP, Monosodium Salt,Cyclic AMP, Sodium Salt,3',5'-Monophosphate, Adenosine Cyclic,AMP, Cyclic,Adenosine Cyclic 3',5' Monophosphate,Cyclic 3',5'-Monophosphate, Adenosine,Cyclic Monophosphate, Adenosine,Cyclic-3',5'-Monophosphate, Adenosine,Monophosphate, Adenosine Cyclic
D000273 Adipose Tissue Specialized connective tissue composed of fat cells (ADIPOCYTES). It is the site of stored FATS, usually in the form of TRIGLYCERIDES. In mammals, there are two types of adipose tissue, the WHITE FAT and the BROWN FAT. Their relative distributions vary in different species with most adipose tissue being white. Fatty Tissue,Body Fat,Fat Pad,Fat Pads,Pad, Fat,Pads, Fat,Tissue, Adipose,Tissue, Fatty
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
D001372 Aza Compounds Organic chemicals where carbon atoms have been replaced by nitrogen atoms. Compounds, Aza

Related Publications

M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
January 1972, Atherosclerosis,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
April 1981, The Journal of pharmacology and experimental therapeutics,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
June 1975, General and comparative endocrinology,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
December 1977, Diabetologia,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
January 1970, Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
August 1970, Acta physiologica Scandinavica,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
September 1973, Endocrinology,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
February 1992, Journal of lipid research,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
January 1975, Naunyn-Schmiedeberg's archives of pharmacology,
M Chasin, and F Mamrak, and K Koshelnyk, and M Rispoli
February 1973, The American journal of physiology,
Copied contents to your clipboard!