Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane

The study compares the effects produced by H+ concentrations in hypo-osmotically stressed NaCl solutions on permeation through RBC membrane. Iso-osmotic solutions of NaCl (160 mM) were prepared taking into account their molecular weight and osmotic concentration. Iso-osmotic solutions (25 mL) were...

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Main Authors: B.O. Atolaiye, D.U. Edward-Ekpu, T.O. Bamidele
Format: Article
Language:English
Published: Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) 2019-08-01
Series:Journal of Applied Sciences and Environmental Management
Subjects:
Online Access:https://www.ajol.info/index.php/jasem/article/view/188797
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author B.O. Atolaiye
D.U. Edward-Ekpu
T.O. Bamidele
author_facet B.O. Atolaiye
D.U. Edward-Ekpu
T.O. Bamidele
author_sort B.O. Atolaiye
collection DOAJ
description The study compares the effects produced by H+ concentrations in hypo-osmotically stressed NaCl solutions on permeation through RBC membrane. Iso-osmotic solutions of NaCl (160 mM) were prepared taking into account their molecular weight and osmotic concentration. Iso-osmotic solutions (25 mL) were diluted with 25 mL of distilled water to give half the initial concentrations (50 % hypotonic salt solutions). Hypotonic NaCl solutions of pH of 6.2, 6.8, 7.4 and 8.0 were prepared, mixed with 0.05 mL of RBC suspension and their absorbance/min for 16 min were measured using a UV/Visible spectrophotometer while the RBCs haemolyse. H+ concentration and hence pH was found to have a significant effect on ion permeability through RBC membrane. Permeation occurred faster in alkalinic solutions under hypo-osmotic stress. Permeation increased with every increase in pH and the increase is steeper at pH 7.4 – 8.0. Keywords: Ions, Electrolyte, Permeability, Red Blood Cell, Membrane
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spelling doaj.art-905c9cf4af6b4faa8cf0bfb1582a4a732024-04-22T19:46:19ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992019-08-01237Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell MembraneB.O. AtolaiyeD.U. Edward-EkpuT.O. Bamidele The study compares the effects produced by H+ concentrations in hypo-osmotically stressed NaCl solutions on permeation through RBC membrane. Iso-osmotic solutions of NaCl (160 mM) were prepared taking into account their molecular weight and osmotic concentration. Iso-osmotic solutions (25 mL) were diluted with 25 mL of distilled water to give half the initial concentrations (50 % hypotonic salt solutions). Hypotonic NaCl solutions of pH of 6.2, 6.8, 7.4 and 8.0 were prepared, mixed with 0.05 mL of RBC suspension and their absorbance/min for 16 min were measured using a UV/Visible spectrophotometer while the RBCs haemolyse. H+ concentration and hence pH was found to have a significant effect on ion permeability through RBC membrane. Permeation occurred faster in alkalinic solutions under hypo-osmotic stress. Permeation increased with every increase in pH and the increase is steeper at pH 7.4 – 8.0. Keywords: Ions, Electrolyte, Permeability, Red Blood Cell, Membrane https://www.ajol.info/index.php/jasem/article/view/188797IonsElectrolytePermeabilityRed Blood CellMembrane
spellingShingle B.O. Atolaiye
D.U. Edward-Ekpu
T.O. Bamidele
Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane
Journal of Applied Sciences and Environmental Management
Ions
Electrolyte
Permeability
Red Blood Cell
Membrane
title Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane
title_full Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane
title_fullStr Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane
title_full_unstemmed Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane
title_short Effect of pH and Hypo-Osmotic Stress on NaCl Electrolyte Permeation across Red Blood Cell Membrane
title_sort effect of ph and hypo osmotic stress on nacl electrolyte permeation across red blood cell membrane
topic Ions
Electrolyte
Permeability
Red Blood Cell
Membrane
url https://www.ajol.info/index.php/jasem/article/view/188797
work_keys_str_mv AT boatolaiye effectofphandhypoosmoticstressonnaclelectrolytepermeationacrossredbloodcellmembrane
AT duedwardekpu effectofphandhypoosmoticstressonnaclelectrolytepermeationacrossredbloodcellmembrane
AT tobamidele effectofphandhypoosmoticstressonnaclelectrolytepermeationacrossredbloodcellmembrane