Global ETD Search
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Showing 1 to 20 of 64 for “"BIO/09 Fisiologia"”.
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Role of BDNF secretion and signaling in the activity-dependent refinement of synaptic connections
Neuronal networks exhibit diverse types of plasticity, including the activity-dependent regulation of synaptic functions and refinement of synaptic connections. In addition, continuous generation of new neurons in the “adult” brain (adult neurogenesis) represents a powerful form of structural …
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Influenza dell'Omeostasi Idrico-Elettrolitica sul Ciclo Veglia-Sonno
During the wake sleep (W-S) cycle in mammals, the alternation of the different states, wake, NREM sleep (NREMS) and REM sleep (REMS), is associated not only with electroencephalographic or behavioural changes, but also with modifications in the physiological regulations of the organism. The most …
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Controllo dell'atto di prensione: coinvolgimento dell'area V6A nell'orientamento del polso
… of the wrist. Experiments were approved by the Bioethical Committee of the University of Bologna and were performed in accordance with National laws on care and use of laboratory animals and with the European Communities Council Directive of 24th November 1986 (86/609/EEC), recently revised by …
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Morphological and functional study of cerebral aging in rat
Aging is a physiological process characterized by a progressive decline of the “cellular homeostatic reserve”, refereed as the capability to respond suitably to exogenous and endogenous stressful stimuli. Due to their high energetic requests and post-mitotic nature, neurons are peculiarly …
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Contribution of Vision and Proprioception to the Precision of Reaching Movements
Ren and colleagues (2006) found that saccades to visual targets became less accurate when somatosensory information about hand location was added, suggesting that saccades rely mainly on vision. We conducted two kinematic experiments to examine whether or not reaching movements would also show such …
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Effects of environmental complexity on neurogenesis in the hippocampal dentate gyrus
Introduction. Postnatal neurogenesis in the hippocampal dentate gyrus, can be modulated by numerous determinants, such as hormones, transmitters and stress. Among the factors positively interfering with neurogenesis, the complexity of the environment appears to play a particularly striking role. …
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RNA Interference and cyclooxygenase-2 (COX-2) regulation in colon cancer cells
Despite new methods and combined strategies, conventional cancer chemotherapy still lacks specificity and induces drug resistance. Gene therapy can offer the potential to obtain the success in the clinical treatment of cancer and this can be achieved by replacing mutated tumour suppressor genes, …
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Central autonomic control in spontaneously hypertensive rats: a study on phasic phenomena during rapid-eye-movement sleep
The cardiovascular regulation undergoes wide changes in the different states of sleepwake cycle. In particular, the relationship between spontaneous fluctuations in heart period and arterial pressure clearly shows differences between the two sleep states. In non rapid-eye-movement sleep, heart …
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Studio cinematico dell'articolazione del gomito e valutazione del carrying angle durante l'esercizio fisico
… questo angolo, utilizzabile sia per gli studi di biomeccanica articolare, che per gli studi di analisi del movimento per l’arto superiore. Il primo obiettivo è stato quello di scegliere un algoritmo di calcolo che rispettasse le caratteristiche dell’articolazione, ed in modo particolare abile a …
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STUDY OF PHYSIO-PATHOLOGICAL MECHANISMS AT THE BASE OF SCHWANNOMA DEVELOPMENT
Schwannomas are the most common type of peripheral nerve tumor. Usually, schwannomas are benign, well‐circumscribed tumors clinging to peripheral nerves, consisting of a clonal population of Schwann cells (SCs), which often undergo cystic and degenerative changes. Most cases are sporadic, however, …
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