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Placental homeostasis of monoamines; effect of gestation age
Mahrla, Filip ; Štaud, František (advisor) ; Vokřál, Ivan (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology and Toxicology Student: Filip Mahrla Supervisor: Prof. PharmDr. František Štaud, Ph.D. Consultant: PharmDr. Rona Karahoda, Ph.D. Title of diploma thesis: Placental homeostasis of monoamines; effect of gestation age Catecholamines norepinephrine and dopamine have been implicated in numerous physiological processes within the central nervous system. Emerging evidence suggests their involvement in placental development and functions and a crucial role in fetal development and programming. Nonetheless, a comprehensive characterization of catecholamine synthesis, degradation, and transport in the fetoplacental unit is still lacking. Thus, in this thesis, we aimed to provide a comprehensive evaluation of catecholamine metabolism and transport in the fetoplacental unit. Gene and protein expression was evaluated using quantitative polymerase chain reaction (PCR) and Western blot analysis, respectively. Firstly, using several placental cell models (BeWo, JEG-3, primary trophoblast cells), we identified components of cellular catecholamine handling associated with the trophoblast cells. Next, we determined the effect of advancing gestation on the placental catecholamine system in humans (first trimester vs. term placenta) and...
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Placental transport of dopamine and norepinephrine
Turková, Helena ; Štaud, František (advisor) ; Jirkovský, Eduard (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Helena Turková Supervisor: prof. PharmDr. František Štaud, Ph.D. Title of diploma thesis: Placental transport of dopamine and norepinephrine During the whole course of pregnancy, it is important to maintain proper monoamine homeostasis, namely serotonin (5-HT), norepinephrine (NE), and dopamine (DA), which are crucial for proper placental function and fetal development. Monoamines are important neuromodulators, involved in cell proliferation, and differentiation. and neuronal migration. High fetal monoamine secretion during gestation demands a responsible clearance mechanism, as disruption of their balance may lead to long-lasting changes in brain structure and function, provoking a higher risk of attention deficit hyperactivity disorder (ADHD), autism or depression. However, uptake of NE a DA through the fetoplacental unit has not been fully and in detail described. Therefore, in this diploma thesis, we focus on the uptake of NE and DA through ex vivo isolated vesicles of microvillous (MVM) and basal (BM) membranes from healthy human term placentas. Our results show that NE and DA uptake is mediated via high-affinity and low-capacity serotonin (SERT) and norepinephrine (NET) transporters in...
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Placental transport of dopamine and norepinephrine
Turková, Helena ; Štaud, František (advisor) ; Jirkovský, Eduard (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Helena Turková Supervisor: prof. PharmDr. František Štaud, Ph.D. Title of diploma thesis: Placental transport of dopamine and norepinephrine During the whole course of pregnancy, it is important to maintain proper monoamine homeostasis, namely serotonin (5-HT), norepinephrine (NE), and dopamine (DA), which are crucial for proper placental function and fetal development. Monoamines are important neuromodulators, involved in cell proliferation, and differentiation. and neuronal migration. High fetal monoamine secretion during gestation demands a responsible clearance mechanism, as disruption of their balance may lead to long-lasting changes in brain structure and function, provoking a higher risk of attention deficit hyperactivity disorder (ADHD), autism or depression. However, uptake of NE a DA through the fetoplacental unit has not been fully and in detail described. Therefore, in this diploma thesis, we focus on the uptake of NE and DA through ex vivo isolated vesicles of microvillous (MVM) and basal (BM) membranes from healthy human term placentas. Our results show that NE and DA uptake is mediated via high-affinity and low-capacity serotonin (SERT) and norepinephrine (NET) transporters in...
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Placental homeostasis of monoamines; effect of gestation age
Mahrla, Filip ; Štaud, František (advisor) ; Vokřál, Ivan (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology and Toxicology Student: Filip Mahrla Supervisor: Prof. PharmDr. František Štaud, Ph.D. Consultant: PharmDr. Rona Karahoda, Ph.D. Title of diploma thesis: Placental homeostasis of monoamines; effect of gestation age Catecholamines norepinephrine and dopamine have been implicated in numerous physiological processes within the central nervous system. Emerging evidence suggests their involvement in placental development and functions and a crucial role in fetal development and programming. Nonetheless, a comprehensive characterization of catecholamine synthesis, degradation, and transport in the fetoplacental unit is still lacking. Thus, in this thesis, we aimed to provide a comprehensive evaluation of catecholamine metabolism and transport in the fetoplacental unit. Gene and protein expression was evaluated using quantitative polymerase chain reaction (PCR) and Western blot analysis, respectively. Firstly, using several placental cell models (BeWo, JEG-3, primary trophoblast cells), we identified components of cellular catecholamine handling associated with the trophoblast cells. Next, we determined the effect of advancing gestation on the placental catecholamine system in humans (first trimester vs. term placenta) and...
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