Ali Jahanbazi Jahan-Abad
Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
[ 1 ] - Curcumin attenuates harmful effects of arsenic on neural stem/progenitor cells
Objective: Arsenic, an environmental pollutant, decreases neuronal migration as well as cellular maturation and inhibits the proliferation of neural progenitor cells. Curcumin has been described as an antioxidant and neuroprotective agent with strong therapeutic potential in some neurological disorders. Human adipose-derived stem cells (hADSCs), a source of multipotent stem cells, can self-rene...
[ 2 ] - P 23: Apoptosis Following Cortical Spreading Depression in Juvenile Rats
Introduction: Repetitive cortical spreading depression (CSD) can lead to cell death in immature brain tissue. Caspases are involved in neuronal cell death in several CSD-related neurological disorders. Yet, whether repetitive CSD itself can induce caspase activation in adult or juvenile tissue remains unknown. Inducing repetitive CSD in somatosensory cortices of juvenile and adult rats in vivo,...
[ 3 ] - استرس اکسیداتیو و نقش‌های مختلف آن در بیماری‌های تحلیل برندۀ عصبی
مقدمه: بروز و شیوع بیماری‌های تحلیل برندۀ عصبی با امید به زندگی افزایش می‌یابد. مغز به جهت دلایل فیزیولوژیکی و بیوشیمیایی حساسیت بالایی به استرس اکسیداتیو دارد. بنابراین حفظ هومئوستاز وضعیت اکسیداسیون -احیاء برای سلول‌های مغز ضروری است. به‌علاوه سطوح آنتی اکسیدان مغز در مقایسه با سایر بافت‌ها محدود است. در این مقاله مکانیسم‌های مختلف درگیر در تولید گونه‌های واکنشگر اکسیژن اندوژن و اگزوژن و نقش ...
[ 4 ] - نقش گیرنده‌های وابسته به گلوتامات، کانال‌های یونی سیناپسی و TrkB در حافظه و یادگیری
مقدمه: تقویت طولانیمدت یک اصطلاح کلی است که به یک فرم از پلاستیسیتۀ وابسته به فعالیت به کار میرود که با فرکانس بالا یا تحریک انفجاری تتا القاء میشود و به افزایش انتقال سیناپسی منجر میشود. تقویت طولانیمدت در یادگیری و حافظه نقش کلیدی دارد. انواع مختلفی از تقویت طولانیمدت در نواحی مشخصی از سیستم عصبی مرکزی مشاهده شده است. ناحیۀ CA1 هیپوکامپ برای تشکیل حافظۀ بلندمدت حیاتی است. نتیجهگیری: مط...
[ 5 ] - ?P21: Is Interleukin-1 Beta Correlated with Intra Cranial Pressure after Traumatic Brain Injury
لطفاً به چکیده انگلیسی مراجعه شود.
[ 6 ] - P3: Mechanisms of TrkB-Mediated Hippocampal Long-Term Potentiation in Learning and Memory
Long-term potentiation (LTP) is a process that certain types of synaptic stimulation lead to a long-lasting enhancement in the strength of synaptic transmission. Studies in recent years indicate the importance of molecular pathways in the development of memory and learning. Tropomyosin receptor kinase B (TrkB) is a member of the neurotrophin receptor tyrosine kinase family, that its ligand is b...
[ 7 ] - P6: Metabotropic Glutamate Receptor-Dependent Role in the Formation of Long-Term Potentiation
Long-term potentiation (LTP) is a reflection of synaptic plasticity that induced by specific patterns of synaptic activity and has an important role in learning and memory. The first clue of the potential role of glutamate receptors in LTP was in 1991 with the observation that the mGluR agonists 1-amino-1, 3-cyclopentanedicarboxylic acid (ACPD), increased LTP. Studies have shown that ACPD induc...
[ 8 ] - P13: Potassium Channels and Long-Term Potentiation Formation
Long-term potentiation (LTP) is a form of activity-dependent plasticity that occurs during learning. Potassium channels are the most diverse group of all ion channels that related to synaptic plasticity. Small-conductance calcium-activated potassium channels (SKs) are found in hippocampal CA1 neurons and by inhibiting of postsynaptic potentials are involved in synaptic transmission impairment. ...
[ 9 ] - P19: Long-Term Potentiation
The term synaptic plasticity points to a series of persistent changes related to the activity of synapses. Long-term potentiation (LTP) is a reflection of synaptic plasticity that has an important role in learning and memory. LTP is a long-lasting increase of synaptic activity due to enhancement of excitatory synaptic transmission after a high-frequency train of electrical stimulations. Differe...
[ 10 ] - P22: The Association between TrkB Signaling Pathway and NMDARs in LTP Induction
Long-term potentiation (LTP) is a biological process of learning and memory after a high-frequency train of electrical stimulations. By binding of brain-derived neurotrophic factor (BDNF) to Tropomyosin receptor kinase B (TrKB) receptors in postsynaptic neurons, tyrosine kinase Fyn is bound to these receptors and hereby plays a mediating role to binding and activation of N-methyl-D-aspartic aci...
[ 11 ] - P24: The Role of Ionotropic Glutamate Receptors in the Induction of LTP
Long-term potentiation (LTP) is a reflection of synaptic plasticity that has an important role in learning and memory. LTP is a long-lasting increase of synaptic activity due to enhancement of excitatory synaptic transmission after a high-frequency train of electrical stimulation. The role of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors in excitatory synaptic tran...
[ 12 ] - P26: Long-Term Potentiation: The Mechanisms of CaMKII in Lerarning and Memory
Long-term potentiation (LTP) is a form of activity dependent plasticity that induced by high-frequency stimulation or theta burst stimulation and results in synaptic transmission. Several Studies have been shown that LTP is one of the most important processes in the CNS that plays an important role in learning and memory formation. Ca2+/calmodulin-dependent protein kinase II (CaMKII) is a major...
[ 13 ] - PuraMatrix hydrogel enhances the expression of motor neuron progenitor marker and improves adhesion and proliferation of motor neuron-like cells
Objective(s): Cell therapy has provided clinical applications to the treatment of motor neuron diseases. The current obstacle in stem cell therapy is to direct differentiation of stem cells into neurons in the neurodegenerative disorders. Biomaterial scaffolds can improve cell differentiation and are widely used in translational medicine and tissue engineering. The aim...