mohamed_farag

محمد فرج السيد

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم علم الحيوان -كلية العلوم -جامعة سوهاج

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  • المنشورات و المؤلفات 3
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Effects of seasonal acclimatization on thermal tolerance of inward currents in roach (Rutilus rutilus) cardiac myocytes.

2018 | الكلمات المفتاحية Cardiac excitability, Fish heart, Global warming, Heat tolerance, Ion channels, Thermal acclimatization,
Effects of seasonal acclimatization on thermal tolerance of inward currents in roach (Rutilus rutilus) cardiac myocytes.
ABSTRACT To test the hypothesis of temperature-dependent deterioration of electrical excitability (TDEE) (Vornanen, J Exp Biol 219:1941-1952, 2016), the role of sodium (I Na) and calcium (I Ca) currents in heat tolerance of cardiac excitability was examined in a eurythermic fish, the roach (Rutilus rutilus). Densities of cardiac I Ca and I Na and their acute heat tolerance were measured ... إقراء المزيد

Effects of seasonal acclimatization on action potentials and sarcolemmal K+ currents in roach (Rutilus rutilus) cardiac myocytes.

2017 | الكلمات المفتاحية Climate warming,
Effects of seasonal acclimatization on action potentials and sarcolemmal K+ currents in roach (Rutilus rutilus) cardiac myocytes.
Temperature sensitivity of electrical excitability is a potential limiting factor for high temperature tolerance of ectotherms. The present study examines whether heat resistance of electrical excitability of cardiac myocytes is modified by seasonal thermal acclimatization in roach(Rutilus rutilus), a eurythermal teleost species. To this end, temperature dependencies of ventricular action potentials (APs), and atrial and ventricular K+ currents were measured ... إقراء المزيد

Effects of seasonal acclimatization on temperature dependence of cardiac excitability in the roach, Rutilus rutilus.

2016 | الكلمات المفتاحية Action potential,
Effects of seasonal acclimatization on temperature dependence of cardiac excitability in the roach, Rutilus rutilus.
ABSTRACT Temperature sensitivity of electrical excitability is a potential limiting factor for performance level and thermal tolerance of excitable tissues in ectothermic animals. To test whether the rate and rhythm of the heart acclimatize to seasonal temperature changes, thermal sensitivity of cardiac excitation in a eurythermal teleost, the roach (Rutilus rutilus), was examined. Excitability of the heart was determined from ... إقراء المزيد

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