Acute effects of ethanol and ethanol plus furosemide on pancreatic capillary blood flow in rats.
The effects of intravenous ethanol and ethanol plus furosemide on pancreatic capillary blood flow (PCBF) were investigated using a laser-Doppler flowmeter. Forty Sprague-Dawley male rats were divided into 4 groups: (1) control, (2) 80% ethanol, (3) 80% ethanol plus furosemide, and (4) furosemide. Mean arterial blood pressure and heart rate were monitored. Levels of serum amylase, calcium, electrolytes, ethanol, and furosemide (groups 3 and 4) were measured, and samples of pancreatic tissue were obtained. The ethanol and furosemide levels were statistically different (p < 0.05). PCBF significantly decreased (p < 0.05) in group 2, increased (p < 0.05) in group 3, and did not differ (p > 0.05) between groups 1 and 4. Histopathologic analysis revealed swollen acini in group 2 and sparse focal necrosis without acinar swelling in group 3. The depressant effect of ethanol on PCBF may be the result of its direct action on pancreatic cells causing edema and capillary compression rather than on primary vascular control mechanisms that adjust blood flow. Furosemide counters this effect.
Dib
J A
JA
Department of Surgery, Lenox Hill Hospital, New York, New York 10021.
Cooper-Vastola
S A
SA
Meirelles
R F
RF
Bagchi
S
S
Caboclo
J L
JL
Holm
C
C
Eisenberg
M M
MM
D000681:Amylases / Q000097:blood; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D002196:Capillaries / Q000187:drug effects; D002712:Chlorides / Q000097:blood; D004338:Drug Combinations; D000431:Ethanol / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology*; D005665:Furosemide / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology*; D006339:Heart Rate / Q000187:drug effects; D007262:Infusions, Intravenous; D017078:Laser-Doppler Flowmetry; D008297:Male; D009336:Necrosis; D010179:Pancreas / Q000098:blood supply* / Q000187:drug effects / Q000473:pathology; D011188:Potassium / Q000097:blood; D051381:Rats; D017207:Rats, Sprague-Dawley; D012039:Regional Blood Flow / Q000187:drug effects; D012964:Sodium / Q000097:blood; D013997:Time Factors
D002712:Chlorides; D004338:Drug Combinations; D000431:Ethanol; D005665:Furosemide; D012964:Sodium; D000681:Amylases; D011188:Potassium