Electroencephalographic evaluation of the therapeutic efficiency of antihypertensive agents on M-SHRSP.
1. In order to evaluate the therapeutic effects of antihypertensive agents on malignant hypertension in M-SHRSP, EEG were performed as a non-invasive, therapeutic index. 2. Under pentobarbital anaesthesia, the EEG pattern of rats with severe hypertension and/or cerebrovascular lesions showed alternate short-active and long-depressive phases with spike and sharp waves. 3. When M-SHRSP were treated with an angiotensin converting enzyme inhibitor (SQ 29,852) or a calcium antagonist (manidipine), the depressive phases became shorter and active phases longer. These changes were more prominent in manidipine treated rats than in SQ 29,852 treated rats. 4. The EEG spike- and sharp-wave complex seems to be a convenient index for evaluating cerebrovascular lesions and cerebral activity in M-SHRSP.
Ohta
Y
Y
Department of Pathology, Kinki University School of Medicine, Ohno-Higashi, Osaka, Japan.
Chikugo
T
T
Suzuki
T
T
Chichibu
S
S
D000806:Angiotensin-Converting Enzyme Inhibitors / Q000627:therapeutic use; D000818:Animals; D000959:Antihypertensive Agents / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects; D002121:Calcium Channel Blockers / Q000627:therapeutic use; D004095:Dihydropyridines / Q000627:therapeutic use; D004569:Electroencephalography / Q000187:drug effects*; D006974:Hypertension, Malignant / Q000188:drug therapy* / Q000473:pathology / Q000503:physiopathology*; D008136:Longevity / Q000187:drug effects; D008297:Male; D009578:Nitrobenzenes; D009943:Organophosphorus Compounds / Q000627:therapeutic use; D010879:Piperazines; D011392:Proline / Q000031:analogs & derivatives / Q000627:therapeutic use; D051381:Rats; D011918:Rats, Inbred SHR
D000806:Angiotensin-Converting Enzyme Inhibitors; D000959:Antihypertensive Agents; D002121:Calcium Channel Blockers; D004095:Dihydropyridines; D009578:Nitrobenzenes; D009943:Organophosphorus Compounds; D010879:Piperazines; C054218:manidipine; D011392:Proline; C054518:ceronapril