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<title>Fiziologie, fiziopatologie, biofizică</title>
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<description/>
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<dc:date>2026-05-06T11:11:00Z</dc:date>
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<item rdf:about="http://repository.usmf.md:80/xmlui/handle/20.500.12710/4361">
<title>Neurobiologia somnului</title>
<link>http://repository.usmf.md:80/xmlui/handle/20.500.12710/4361</link>
<description>Neurobiologia somnului
Chiriac, Ecaterina
The humoral theory of sleep regulation proposed by Ishimori and Pieron postulates that&#13;
the homeostatic sleep drive leads to the accumulation of somnogens during wakefulness, and that&#13;
this homeostatic need is discharged during sleep. Prostaglandin D2, adenosine, and cytokines&#13;
have been proposed as effective sleep substances. Also, several interactions between sleep- and&#13;
wake-active neurons have been proposed at the systems level in many models of sleep–wake&#13;
regulation. In this review, we describe briefly the neurobiology of sleep.&#13;
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Teoria umorală a reglării somnului propusă de Ishimori şi Pieron postulează că în timpul&#13;
stării de veghe în organism se acumulează substanţe somnogene, care asigură homeostaza&#13;
somnului. Prostaglandina D2, adenozina şi citokinele au fost propuse drept substanţe somnogene&#13;
efective. De asemenea, s-a descoperit faptul că reglarea ciclului somn-veghe este realizată prin&#13;
interacţiunea dintre diverşi neuroni ce controlează starea de veghe şi somnul. În această lucrare,&#13;
realizăm o scurtă trecere în revistă a neurobiologiei somnului.
Conducător ştiinţific – Nicolae Demişcan, doctor în biologie, conferenţiar&#13;
Catedra Fiziologia Omului şi Biofizica
</description>
<dc:date>2011-01-01T00:00:00Z</dc:date>
</item>
<item rdf:about="http://repository.usmf.md:80/xmlui/handle/20.500.12710/4355">
<title>Corelaţii dintre activitatea sistemului citokinic şi proteina C–reactivă pe parcursul şocului hemoragic</title>
<link>http://repository.usmf.md:80/xmlui/handle/20.500.12710/4355</link>
<description>Corelaţii dintre activitatea sistemului citokinic şi proteina C–reactivă pe parcursul şocului hemoragic
Rotaru, Victoria; Borş, Eleonora; Hangan, Corneliu; Cernit, Veronica
Hemorrhagic shock takes place by local and systemic inflammatory processes. A&#13;
pathogenetic factor of systemic inflammation is acute-phase response. During the acute-phase&#13;
response, the liver dramatically increases the synthesis of acute-phase proteins, such as&#13;
fibrinogen and C-reactive protein (CRP). CRP is recognized as a true marker of local and&#13;
diffuse inflammatory process. Elevated levels of this protein of acute inflammation during&#13;
hemorrhagic shock are caused by elevated concentrations of cytokines IL-1, IL-6, TNF-α.&#13;
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Şocul hemoragic se desfăşoară prin procese inflamatorii locale şi sistemice. Un factor&#13;
patogenetic al inflamaţiei sistemice este Răspunsul Fazei Acute (RFA). În timpul RFA în ficat&#13;
creşte corelativ sinteza proteinei C- reactive (PCR), fibrinogenului, precum şi nivelul citokinelor&#13;
în sânge. PCR este recunoscută drept un marker fidel al procesului inflamator local şi difuz.&#13;
Valorile crescute ale acestei proteine a fazei acute a inflamaţiei pe perioada şocului hemoragic&#13;
sunt determinate de concentraţiile elevate ale citokinelor IL-1-α, IL-6 şi TNF-α.
Catedra Fiziopatologie şi fiziopatologie clinică
</description>
<dc:date>2011-01-01T00:00:00Z</dc:date>
</item>
<item rdf:about="http://repository.usmf.md:80/xmlui/handle/20.500.12710/4356">
<title>Reflections about estimative method of the isolate portal vein contractility</title>
<link>http://repository.usmf.md:80/xmlui/handle/20.500.12710/4356</link>
<description>Reflections about estimative method of the isolate portal vein contractility
Saulea, Aurel; Rotaru, Victor; Ojog, Victor
The current investigation intended to determine the conditions of portal vein contractions&#13;
in rats in isometric regime. The proceeding of object preparation as well as experimental phases&#13;
was described. Main parameters of contractility were highlighted, also the importance of portal&#13;
vein muscle reactivity at different concentrations of Ca ions. Hypotheses about the origin and&#13;
mechanism of portal vein muscle contraction were enounced.&#13;
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Prezenta investigaţie determină condiţiile contracţiilor venei porte la şobolan în regim&#13;
izometric. A fost descrisă desfăşurat manopera de preparare de obiectului de studiu precum şi&#13;
etapele experimentale. S-au evidenţiat indicii principali ai contractilităţii, cît şi importanţa&#13;
reactivitaţii muşchiului venos portal la diferite concentraţii a ionilor de Ca2+. Au fost expuse&#13;
ipoteze privind originea şi mecanismul contracţiei venei porte izolate
Department of Physiology and Biophysics, State University of Medicine and Pharmacy,&#13;
Chisinau, R. Moldova
</description>
<dc:date>2011-01-01T00:00:00Z</dc:date>
</item>
<item rdf:about="http://repository.usmf.md:80/xmlui/handle/20.500.12710/4357">
<title>Efectele nespecifice ale estrogenilor</title>
<link>http://repository.usmf.md:80/xmlui/handle/20.500.12710/4357</link>
<description>Efectele nespecifice ale estrogenilor
Cucu, Tatiana; Cucu, Cristina
The effects of estrogens upon the cardiovascular system are: prevention of&#13;
atherosclerosis, improvement of the lipid profile and vasodilation. The effects of estrogens upon&#13;
the digestive system are: reduction of the intestinal peristalsis and increase of absorption.&#13;
Estrogens also have neurotrophic and neuroprotective effects, along with the prevention of brain&#13;
ischemia, they have an antidiabetic action, increase the retention of water and sodium, protect the&#13;
skeletal system and increase blood coagulation. Estrogens also maintain the normal structure of&#13;
skin in women by promoting keratinocytes and fibroblasts proliferation, and by stimulating its&#13;
vascularization.&#13;
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La nivelul sistemului cardiovascular, estrogenii au efect antiaterosclerotic, de ameliorare&#13;
a profilului lipidic şi de vasodilatare. La nivel digestiv, estrogenii micşorează peristaltismul&#13;
intestinal, favorizînd absorbţia. Estrogenii mai posedă efect neurotrofic, neuroprotector şi&#13;
antiischemic cerebral, au acţiune antidiabetică, favorizează retenţia de apă şi sodiu, au efect&#13;
protector asupra ţesutului osos, majorează coagulabilitatea sîngelui. La nivelul pielii, estrogenii&#13;
menţin structura ei normală la femei prin promovarea proliferării keratinocitelor, fibroblastelor,&#13;
prin stimularea vascularizării pielii.
Conducător ştiinţific: doctor în medicină, conferenţiar universitar, Nicolae Demişcan&#13;
Catedra Fiziologia Omului şi Biofizică, USMF “Nicolae Testemiţanu”
</description>
<dc:date>2011-01-01T00:00:00Z</dc:date>
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