Search results for "Apse"

Synaptic connectivity of the cholinergic axons in the olfactory bulb of the cynomolgus monkey.

2015

The olfactory bulb (OB) of mammals receives cholinergic afferents from the horizontal limb of the diagonal band of Broca (HDB). At present, the synaptic connectivity of the cholinergic axons on the circuits of the OB has only been investigated in the rat. In this report, we analyze the synaptic connectivity of the cholinergic axons in the OB of the cynomolgus monkey (Macaca fascicularis). Our aim is to investigate whether the cholinergic innervation of the bulbar circuits is phylogenetically conserved between macrosmatic and microsmatic mammals. Our results demonstrate that the cholinergic axons form synaptic contacts on interneurons. In the glomerular layer, their main targets are the peri…

Sodium Fluxes and Astroglial Function

2012

Astrocytes exhibit their excitability based on variations in cytosolic Ca(2+) levels, which leads to variety of signalling events. Only recently, however, intracellular fluctuations of more abundant cation Na(+) are brought in the limelight of glial signalling. Indeed, astrocytes possess several plasmalemmal molecular entities that allow rapid transport of Na(+) across the plasma membrane: (1) ionotropic receptors, (2) canonical transient receptor potential cation channels, (3) neurotransmitter transporters and (4) sodium-calcium exchanger. Concerted action of these molecules in controlling cytosolic Na(+) may complement Ca(2+) signalling to provide basis for complex bidirectional astrocyte…

Epicuticular wax content and morphology as related to ethylene and storage perfomance of 'Navelate' orange fruit

2010

8 pages, 6 figures, 1 table. -- Available online 15 September 2009.

Improvisointi Carl Orffin musiikkikasvatusmenetelmässä

1999

Päiväkoti-ikäisten lasten fyysisen aktiivisuuden mittaaminen Suomessa OSRAC-P mittarilla

2011

TIIVISTELMÄ Seppälä, A. 2011. Päiväkoti-ikäisten lasten fyysisen aktiivisuuden mittaaminen Suomessa OSRAC-P mittarilla. Jyväskylän yliopisto. Liikuntapedagogiikan pro gradu – tutkielma 84 s. 2 liites. Tutkimuksen tarkoituksena oli selvittää, soveltuuko kansainvälinen lasten fyysisen aktiivisuuden mittaamiseen tarkoitettu OSRAC-P (Observational System for Recording Physical Activity in Children-Preschool version) mittari päiväkoti-ikäisten lasten fyysisen aktiivisuuden mittaamiseen Suomessa. Tutkimuksella pyrittiin vastaamaan myös kysymyksiin, mitä OSRAC-P mittarilla mitatut tulokset kertovat päiväkoti-ikäisten lasten fyysisestä aktiivisuudesta, eroaako fyysisen aktiivisuuden intensiteetti t…

Minimally invasive secondary cytoreduction plus HIPEC for recurrent ovarian cancer: a case series.

2014

Objective To analyze the feasibility of laparoscopic/robotic secondary cytoreductive surgery and hyperthermic intraperitoneal intra-operative chemotherapy (SCS + HIPEC) in a retrospective series of isolated platinum sensitive recurrent ovarian cancer. Methods We retrospectively evaluated a consecutive series of ovarian cancer patients with isolated platinum sensitive relapse. Isolated relapse was defined as the presence of a single nodule, in a single anatomic site. In all cases the presence of isolated relapse was assessed at pre-operative FDG-PET/CT scan, and confirmed with staging laparoscopy performed immediately before SCS + HIPEC. Results 84 women with platinum sensitive relapse recei…

Synaptic connectivity of serotonergic axons in the olfactory glomeruli of the rat olfactory bulb.

2010

Although the major mode of transmission for serotonin in the brain is volume transmission, previous anatomical studies have demonstrated that serotonergic axons do form synaptic contacts. The olfactory glomeruli of the olfactory bulb of mammals receive a strong serotonergic innervation from the dorsal and medial raphe nuclei. In the present report, we investigate the synaptic connectivity of these serotonergic axons in the glomerular neuropil of the rat olfactory bulb. Our study shows that serotonergic axons form asymmetrical synaptic contacts on dendrites within the glomerular neuropil. Analyzing the neurochemical nature of the synaptic targets, we have found that 55% of the synapses were …

Synaptogenesis in the mouse olfactory bulb during glomerulus development

2008

Synaptogenesis is essential for the development of neuronal networks in the brain. In the olfactory bulb (OB) glomeruli, numerous synapses must form between sensory olfactory neurons and the dendrites of mitral/tufted and periglomerular cells. Glomeruli develop from E13 to E16 in the mouse, coincident with an increment of the neuropil in the border between the external plexiform (EPL) and olfactory nerve layers (ONL), coupled to an extensive labelling of phalloidin and GAP-43 from the ONL to EPL. We have tracked synaptogenesis in the OB during this period by electron microscopy (EM) and immunolabelling of the transmembrane synaptic vesicle glycoprotein SV-2. No SV-2 labelling or synapses we…

Types of cholecystokinin-containing periglomerular cells in the mouse olfactory bulb

2010

The periglomerular cells (PG) of the olfactory bulb (OB) are involved in the primary processing and the refinement of sensory information from the olfactory epithelium. The neurochemical composition of these neurons has been studied in depth in many species, and over the last decades such studies have focused mainly on the rat. The increasing use of genetic models for research into olfactory function demands a profound characterization of the mouse olfactory bulb, including the chemical composition of bulbar interneurons. Regarding both their connectivity with the olfactory nerve and their neurochemical fate, recently, two different types of PG have been identfied in the mouse. In the prese…

Nitric oxide synthase containing periglomerular cells are GABAergic in the rat olfactory bulb.

2003

In the olfactory glomeruli of the rat olfactory bulb, there is a population of periglomerular cells (PG) that contains the neuronal isoform of the nitric oxide synthase (nNOS). To date, these PG have not been characterized neurochemically and it has not been determined whether they are type 1 (GABAergic PG that receive synaptic contacts from the olfactory axons) or type 2 PG (non-GABAergic PG that do not receive synapses from the olfactory axons). Combining pre-embedding NADPH-diaphorase histochemistry and post-embedding immunoperoxidase detection of GABA, we demonstrate that nNOS-containing PG are GABAergic and therefore, belong to the type 1 PG. The possible actions of nitric oxide in the…