نتایج جستجو برای: prenatal hypoxia

تعداد نتایج: 94232  

Vicia genus has 45 species in Iran. Many protective and biological activities have been reported from these species.  In spite of many works, nothing is known about protective effect of V. cracca against hypoxia conditions. In this study, protective effects of V. cracca extract against hypoxia-induced lethality in mice were evaluated by three experimental models of hypoxia, asphyctic, haem...

 Background and purpose: Hypoxia occurs in ischemia and heart attack, and leads to death. It involves production of reactive oxygen species. Antioxidants exhibit antihypoxic properties. Ferula persica has distinctive antioxidant activities. Nothing is known about the protective effect of this plant against hypoxia-induced lethality in mice. Materials and methods: Protective effects of methanol...

Journal: :Journal of immunology 2006
Chandrakant Tayade Gordon P Black Yuan Fang B Anne Croy

Prenatal mortality reaching 30% occurs during the first weeks of gestation in commercial swine. Mechanisms for this are unknown although poor uterine blood supply has been postulated. In other species, vascular endothelial growth factor, hypoxia-inducible factor 1-alpha, and IFN-gamma regulate gestational endometrial angiogenesis. Vascular endothelial growth factor and hypoxia-inducible factor ...

Journal: :Neuron 2009
Benjamin E. Deverman Paul H. Patterson

Cytokines are pleotrophic proteins that coordinate the host response to infection as well as mediate normal, ongoing signaling between cells of nonimmune tissues, including the nervous system. As a consequence of this dual role, cytokines induced in response to maternal infection or prenatal hypoxia can profoundly impact fetal neurodevelopment. The neurodevelopmental roles of individual cytokin...

Journal: :Respiratory physiology & neurobiology 2005
Pablo Achard Sébastien Zanella Roger Rodriguez Gérard Hilaire

The survival of neonatal mammals requires a correct function of the respiratory rhythm generator (RRG), and therefore, the processes that control its prenatal maturation are of vital importance. In humans, lambs and rodents, foetal breathing movements (FBMs) occur early during gestation, are episodic, sensitive to bioamines, central hypoxia and inputs from CNS upper structures, and evolve with ...

Journal: :Reproduction in domestic animals = Zuchthygiene 2012
C I Vannucchi L C G Silva C F Lúcio F M Regazzi G A L Veiga D S Angrimani

Among the modifications that occur during the neonatal period, pulmonary development is the most critical. The neonate's lungs must be able to perform adequate gas exchange, which was previously accomplished by the placenta. Neonatal respiratory distress syndrome is defined as insufficient surfactant production or pulmonary structural immaturity and is specifically relevant to preterm newborns....

Journal: :Central European journal of public health 2004
M Dubovický E Ujházy P Kovacovský J Navarová M Juráni L Soltés

Intrauterine hypoxia associated with oxidative stress represents an important risk factor for development of neurobehavioral dysfunctions. In the present study, we investigated the potential protective effect of melatonin (MEL) on neurobehavioral dysfunctions induced by chronic intrauterine hypoxia in rats by the anticonvulsant drug phenytoin (PHT), which is known by its teratogenic potential. ...

Journal: :The Israel Medical Association journal : IMAJ 2012
Ronella Marom Ronit Lubetzky Francis B Mimouni Haim Bassan Liat Ben Sira Irit Berger Shaul Dollberg Dror Mandel

BACKGROUND Infants with severe intraventricular-periventricular hemorrhage (IVH) have higher absolute nucleated red blood cell counts (aNRBC) at birth (a marker of intrauterine hypoxia) than controls. Periventricular leukomalacia (PVL) is known to be associated with prenatal and postnatal events. Whether PVL is also linked to intrauterine hypoxia is unknown. OBJECTIVES To test the hypothesis ...

Journal: :Journal of Medical Case Reports 2008
Shahla Siddiqui Naveed Latif

INTRODUCTION Eisenmenger's syndrome in pregnancy can lead to death in 50% to 65% of parturients. Expensive invasive monitoring and medication have improved management and outcomes. Cheaper alternatives for the management of high-risk patients who present with no prenatal care are still not available. CASE PRESENTATION We describe the obstetric anaesthesia management of a 34-year-old, 34-weeks...

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