0000000000262909

AUTHOR

Kirsten Ferdinand

showing 2 related works from this author

Blood ethanol levels and adenylyl cyclase activity in lymphocytes of alcoholic patients

1999

Abstract Background: The adenylyl cyclase (AC) signal transduction pathway is a target of acute and chronic ethanol actions. This study examined whether AC activity in lymphocyte membranes of male alcoholic patients correlated with blood concentrations of ethanol. Methods: Patients ( n = 13; mean age: 40 ± 8 years) were studied on the day of admission (day 0) and 2 days later under detoxification. Moreover, 13 age-matched male healthy controls (mean age 40 ± 9 years) were included. Lymphocyte membranes were prepared by differential centrifugation whereby blood ethanol was washed out. As a measure of AC activity the formation of cyclic adenosine monophosphate (cAMP) from adenosine triphospha…

AdultMalemedicine.medical_specialtyLymphocyteStimulationGuanosine triphosphateAdenylyl cyclasechemistry.chemical_compoundAdenosine TriphosphateInternal medicineCyclic AMPmedicineHumansCyclic adenosine monophosphateLongitudinal StudiesLymphocytesBiological PsychiatryEthanolForskolinDose-Response Relationship DrugEthanolColforsinMiddle AgedAlcoholismmedicine.anatomical_structureEndocrinologychemistryCase-Control StudiesGuanosine TriphosphatePhosphorus RadioisotopesAdenosine triphosphateAdenylyl CyclasesSignal TransductionBiological Psychiatry
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Adenylyl cyclase activity is increased in younger, but decreased in older, alcoholic patients after detoxification.

2000

Acute and chronic administration of ethanol leads to alterations of the adenylyl cyclase (AC) signal transduction pathway. This study examined whether the formation of cAMP by AC in lymphocytes correlates with age in alcoholic patients and in healthy controls. Blood was drawn for preparation of lymphocyte membranes and for determination of basal, GTPgammaS-stimulated, and forskolin-stimulated AC activity from 68 actively drinking alcoholic patients (age, mean +/- SD: 45 +/- 10; range: 26-69 years) after ethanol detoxification. The patients' AC activity correlated negatively with age. In contrast, no effect of age was observed in the healthy controls (age, mean +/- SD: 42 +/- 11; range: 24-6…

AdultMalemedicine.medical_specialtyLymphocyteTemperanceStatistics NonparametricAdenylyl cyclaseBlood cellchemistry.chemical_compoundBasal (phylogenetics)Internal medicineDetoxificationMedicineHumansLymphocytesAgedEthanolbusiness.industryCase-control studyAge FactorsGeneral MedicineMiddle AgedAlcoholismmedicine.anatomical_structureEndocrinologychemistryCase-Control StudiesToxicitybusinessAdenylyl CyclasesAlcohol and alcoholism (Oxford, Oxfordshire)
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