ABSTRACT
H+ transport across the erythrocyte membrane was studied in Rana temporaria grass frog. The temperature coefficients and activation energy of H+ transport were calculated in media containing Cl- and SO4(2-). Our results show that kinetic characteristics of H+ transport depend on function of band 3 protein in the erythrocyte membrane.
Subject(s)
Anion Exchange Protein 1, Erythrocyte/physiology , Erythrocyte Membrane/metabolism , Protons , Rana temporaria/physiology , Temperature , Animals , Biological Transport , Chlorides/metabolism , Erythrocytes/metabolism , Hydrogen-Ion Concentration , Rana temporaria/metabolism , Sulfates/metabolismABSTRACT
The parameters of thermal dependence of H+ transport into human erythrocytes in the presence of furosemide were measured. The relationship between these changes and function of band 3 protein of the erythrocyte membrane is discussed.
Subject(s)
Erythrocyte Membrane/metabolism , Erythrocytes/metabolism , Protons , Temperature , Anion Exchange Protein 1, Erythrocyte/metabolism , Biological Transport, Active , Furosemide/pharmacology , Humans , Hydrogen-Ion Concentration , Kinetics , ThermodynamicsABSTRACT
In the snail, the pH 6.7-6.8 decreased the neuron membrane potential in 10% of cases and increased it in 30%. The hyperpolarisation was equal to 9(5 mV, the effect being abolished by addition of 5-10 M strophantidine. The findings suggest that low pH activates sodium conduction, the hyperpolarisation being caused by activation of the K+/Na(+)-pump.
Subject(s)
Lymnaea/physiology , Neurons/physiology , Animals , Ganglia, Invertebrate/cytology , Ganglia, Invertebrate/physiology , Hydrogen-Ion Concentration , Membrane PotentialsSubject(s)
Abdomen , Abdominal Injuries , Fetus , Multiple Trauma , Pregnancy Complications , Uterine Rupture , Abdominal Injuries/surgery , Accidents, Traffic , Adult , Female , Humans , Multiple Trauma/surgery , Pregnancy , Pregnancy Complications/surgery , Pregnancy Trimester, Third , Uterine Rupture/surgeryABSTRACT
The experience with diagnosis and treatment of closed abdominal injuries in a specialized department of polytrauma for 3 years is summarized. The diagnostic and surgical tactics in given pathology consisting in early diagnosis of possible injuries to the viscera and emergency operative intervention is presented.
