Learn More
This paper reviews and discusses strategies for the use of thermal imaging for studies of stomatal conductance in the field and compares techniques for image collection and analysis. Measurements were taken under a range of environmental conditions and on sunlit and shaded canopies to illustrate the variability of temperatures and derived stress indices. A(More)
Antibiotic-resistant is profoundly important to human and animal health, but the environmental reservoirs of resistance determinants are poorly understood, in particular in wild environments in remote Archipelagos. Moreover, the prevalence of antibiotic-resistant bacteria in wild bird populations is rather unknown. In the present study, we used the Azores(More)
Histamine is commonly acknowledged as an inflammatory mediator in peripheral tissues, leaving its role in brain immune responses scarcely studied. Therefore, our aim was to uncover the cellular and molecular mechanisms elicited by this molecule and its receptors in microglia-induced inflammation by evaluating cell migration and inflammatory mediator(More)
BACKGROUND AND PURPOSE Cerebral arteriovenous malformation (AVM) is a vascular disease that disrupts normal blood flow and leads to serious neurological impairment or death. Aberrant functions of AVM-derived brain endothelial cells (AVM-BECs) are a disease hallmark. Our aim was to use microRNA-18a (miR-18a) as a therapeutic agent to improve AVM-BEC(More)
A systematic study on the incidence and patterns of cytosine methylation in the fungi has been carried out by restriction and nearest-neighbor analysis of DNAs isolated from undifferentiated cells of several fungal species. With respect to DNA modification, the fungi appear to be a heterogeneous group, with a 5-methylcytosine content ranging from(More)
BACKGROUND Neuropeptide Y (NPY) is emerging as a modulator of communication between the brain and the immune system. However, in spite of increasing evidence that supports a role for NPY in the modulation of microglial cell responses to inflammatory conditions, there is no consistent information regarding the action of NPY on microglial phagocytic activity,(More)
PURPOSE OF THE STUDY To determine the effects of choline on red blood cell membrane properties and NO metabolism. MATERIAL AND METHODS Aliquots of venous blood from eleven healthy subjects were incubated in vitro with choline concentrations 10(-10) to 10(-3) M. The following parameters were determined: erythrocyte deformability, aggregation and membrane(More)
Transient exposure of mycelia from Aspergillus niger and Aspergillus nidulans to the cytidine analog 5-azacytidine, leading to no more than 0.3 to 0.5% substitution for cytosine by 5-azacytosine in A. nidulans DNA, resulted in the conversion of a high fraction of the cell population (more than 20%) to a mitotically and meiotically stable "fluffy"(More)
The endocannabinoid system has been implicated in the modulation of adult neurogenesis. Here, we describe the effect of type 1 cannabinoid receptor (CB1R) activation on self-renewal, proliferation and neuronal differentiation in mouse neonatal subventricular zone (SVZ) stem/progenitor cell cultures. Expression of CB1R was detected in SVZ-derived immature(More)
Neural stem cells of the subventricular zone (SVZ) represent a potentially important source of surrogate cells for the treatment of brain damage. Proper use of these cells for neuronal replacement depends on the ability to drive neuronal differentiation. Several neuromodulators stimulate neurogenesis. Here we examined the effects of the neuropeptide(More)