Foto del docente

Paolo Clavenzani

Full Professor

Department of Veterinary Medical Sciences

Academic discipline: VET/01 Veterinary Anatomy

Director of First Cycle Degree of Aquaculture and Fish Production Hygiene

Research

Keywords: Fluorescent Tracers Autonomic Nervous System Enteric Nervous System Immunohistochemistry Central Nervous System Morphometric Analysis Chemosensing

The researches have concerned the following topics:

- Histochemical profile of articularis humeri muscle in the horse.

- Analysis of the sternotrachealis muscle fibers in some anseriformes: histochemistry and sex differences.

- High incidence of multiple-bag fiber muscle spindles in the articularis humeri muscle of the horse.

- Localization of motoneurons innervating the extraocular muscles of the sheep by retrograde fluorescent tracers.

- Motoneuron organization of the muscles of the spinal accessory complex of the sheep investigated with the fluorescent retrograde tracer technique.

- Central projections and entries of capsaicin-sensitive muscle afferents.

- Partial transformation from fast to slow muscle fibers induced by deafferentation of capsaicin-sensitive muscle afferents.

- Mesencephalic trigeminal nucleus neurons supplying the jaw closing muscles have no spinal projection: a fluorescent double-labelling study in birds and mammals.

- Cerebellar and spinal projections of the coeruleus complex in the duck: a fluorescent retrograde double-labeling study.

- Cerebellar afferents from neurons in the extraocular motor nuclei: fluorescent retrograde double-labeling study in the sheep.

- Correlation between VEGF production and blood vessels density in steroidogenic activated pig antral follicles.

- Viscerotopic representation of the subdiaphragmatic tracts of the digestive apparatus within the vagus complex in the sheep.

- The mesencephalic trigeminal nucleus of the duck: development and apoptosis.

- Characterisation of neurons expressing calbidin immunoreactivity in the ileum of the unweaned and mature sheep.

- Localisation of recurrent laryngeal nerve motoneurons in the sheep by means of retrograde fluorescent labelling.

- Localization, morphology and immunohistochemistry of spinal cord and dorsal root ganglion neurons that innervate the gastrocnemius and superficial digital flexor muscles in cattle.

- NOS-immunoreactivity and NADPH-d histochemistry in the enteric nervous system of Sarda breed sheep with different PrP genotypes in whole-mount and cryostat preparations.

- Enteroglia and neuron involvement without apparent neuronal loss in ileal enteric nervous system plexi from Scrapie-affected sheep.

- Morphology and neurochemistry of descending and ascending myenteric plexus neurons of sheep ileum.

- Anatomical evidence for ileal Peyer’s patches innervation by enteric nervous system: a potential route for prion neuroinvasion?

- Intrinsic neuronal control of the pyloric sphincter of the lamb.

- Adenosine A1 and A3 receptor agonists inhibit NANC relaxations in the guinea pig isolated trachea.

- Ileal tract and Peyer’s patch innervation in scrapie-free versus scrapie-affected ovines.

- Characterization of sheep (Ovis aries) palatine tonsil innervation.

- Expression of α-transducin, a chemoreceptive molecule, in endocrine and non endocrine cells of the pig gastrointestinal tract.

- Functional and neurochemical changes of the gastrointestinal tract in a rodent model of Parkinson’s disease.

- Immunohistochemical characterization of Th13-L2 spinal ganglia neurons in sarda breed ovines (Ovis aries).

- Extrinsic afferents supplying the ovine duodenum and ileum.

- Endothelin receptors B (EDNRB) is not the causative gene of the English spotting locus in the domestic rabbit (Oryctolagus cuniculus).

- An immunohistochemical study of the distribution of nitric oxide synthase-immunoreactive neurons and fibers in the reticular groove of suckling lambs.

- Neurochimical features of boar lumbo-sacral root ganglion neurons and characterization of sensory neurons innervating the urinary bladder trigone.

- Expression and regulation of α-transducin in the pig gastrointestinal tract.

- Localization of peripheral autonomic neurons innervating the boar urinary bladder trigone and neurochemical features of the sympathetic component.

- Detection of anticonductive tissue autoantibodies in a patient with cronic intestinal pseudo-obstruction and sick sinus syndrome.

- Enteroendocrine profile of α-transducin immunoreactive cells in the gastrointestinal tract of the European sea bass (Dicentrarchus labrax).

- Expression of β2 adrenoceptors within enteric neurons of the horse.

- Anatomy and histology of fibrocartilago humerocapsularis in some species of European wild birds.

- Enteric neuroplasticity in seawater-adapted European eel (Anguilla anguilla).

- The Kit gene is associated with the english spotting coat color locus and congenital megacolon in checkered giant rabbit (Oryctalagus cuniculus)

- Expression of α-gustducin and α-transducin, G proteins coupled with taste receptors, in boar sperm.

- A new method of producing casts for anatomical studies.

- Relationship between pectoralis major muscle histology and quality traits of chicken meat.

- Anatomy of the shoulder and arm musculature of the common buzzard (Buteo Buteo Linnaeus, 1758) and the European honey buzzard (Pernis apivorus Linnaeus, 1758).

- α-transducin and α-gustducin immunoreactive cells in the stomach of common solea (Solea solea) fed with mussel meal.

- The olfactory receptor OR51E1 is present along the gastrointestinal tract of pigs, co-localizes with enteroendrocrine cells and is modulated by intestinal microbiota.

- Expression of the bitter taste receptor, T2R38, in enteroendocrine cells of the colonic mucosa of overweight/obese vs. lean subjects.

- Regulation of α-transducin and α-gustducin expression by a high protein diet in the pig gastrointestinal tract.

- Prucalopride exerts neuroprotection in human enteric neurons.

- Distribution of α-transducin and α-gustducin immunoreactive cells in the chicken (Gallus domesticus) gastrointestinal tract.

- Downregulation of neuronal vasoactive intestinal polypeptide in Parkinson’s disease and chronic constipation.

- Localization of 5-hydroxytryptamine 4 receptor in the equine enteric neurons and fibers and spinal ganglion neuron.

- INPP4B overexpression and c-KIT downregulation in human achalasia.

- Expression of RAD21 immunoreactivity in myenteric neurons of the human and mouse small intestine.

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