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Biomedical subjects

D Di Venere

Publications and source records attributed to D Di Venere.

8 recordsLinked to original sources
PubMed2005

Effects of amitriptyline and intra-oral device appliance on clinical and laser-evoked potentials features in chronic tension-type headache.

In the present study, we examined clinical and laser-evoked potentials (LEP) features in two groups of chronic tension-type headache (CTTH) patients treated with two different approaches: intra-oral appliance of prosthesis, aiming to reduce muscular tenderness, and 10 mg daily amitriptyline. Eighteen patients suffering from CTTH (IHS, 2004) participated in the study. We performed a basal evaluation of clinical features and LEPs in all patients (T0) vs. 12 age- and sex-matched controls; successively, patients were randomly assigned to a two-month treatment by amitriptyline or intra-oral device appliance. The later LEPs, especially the P2 component, were significantly increased in amplitude in the CTTH group. Both the intra-oral prosthesis and amitriptyline significantly reduced headache frequency. Total Tenderness Score was significantly reduced in the group treated by the prosthesis. The amplitude of P2 response elicited by stimulation of pericranial zones showed a reduction after amitriptyline treatment. The results of this study may confirm that pericranial tenderness is primarily a phenomenon initiating a self-perpetuating circuit, favoured by central sensitisation at the level of the cortical nociceptive areas devoted to the attentive and emotive compounds of pain. Both the interventions at the peripheral and central levels may interrupt this reverberating circuit, improving the outcome of headache.

Administration, Oral↗
PubMed2004

[Prosthetic rehabilitation of edentulous patients after stroke].

AIM: Stroke is actually the 3rd cause of death in the world after cardiovascular diseases and cancer. In Italy, every year there are 100000 new cases; 2/3 of them die or become heavily disabled. The greatest part of patients which survive is old-aged and 70% of patients that survive is a removable denture wearer. METHODS: At the Neurological Clinic of the Polyclinic Hospital of Bari we have studied 14 removable denture wearers that had had a stroke. RESULTS: We observed that 85.7 % of removable dentures were inefficient, in 50% there will need a new removable prosthesis; 50% of persons had a bad dental hygiene; 93% of denture wearers with stroke didn't make an odontoiatric control after stroke. CONCLUSIONS: Although the analysis of the orodental status has been carried out on a limited number of patients, the need of a greater motivation and solicitation in dental check-up is underlined. The role of the dentist in oral rehabilitation and in rehabilitation of post stroke dysphagia in stroke survivors is also examined.

Aged↗
PubMed2001

Low temperature metabolism of apple phenolics and quiescence of Phlyctaena vagabunda.

The content of chlorogenic acid, (+)-catechin, (-)-epicatechin, phloretin glycosides, and quercetin glycosides in fresh and stored Golden Delicious apples (Malus domestica Borkh) was determined. The relative amount of phenolics in the peel, with the exception of chlorogenic acid and (-)-epicatechin, was higher than that in the flesh. In addition, quercetin glycosides were detected only in the skin. These compounds were tested for fungicidal activity against Phlyctaena vagabunda Desm., the causal agent of a postharvest rot. Chlorogenic acid only inhibited P. vagabunda spore germination and mycelial growth in vitro. Changes of apple phenolics and polyphenol oxidase activity during cold storage and the biological activity of these phenolics have also been analyzed with reference to the development of quiescent infections during cold storage plus shelf life at room temperature. The results obtained suggested that phloridzin and chlorogenic acid in combination with polyphenol oxidase activity could function to arrest P. vagabunda in quiescent infections associated with immature and ripening apple fruit.

Chlorogenic Acid↗
PubMed2000

Role of endogenous flavonoids in resistance mechanism of Vigna to aphids.

Cultivated and wild species of the genus Vigna were screened for their flavonoid content. Flavonoid HPLC analyses clearly showed that cultivated lines of cowpea (Vigna unguiculata L. Walp.) are very similar from a qualitative point of view, always showing three flavonoid aglycons: quercetin, kaempferol, and isorhamnetin. In addition, a positive relationship between resistance/susceptibility characteristics against aphids and flavonoid glycoside content of cowpea lines was found. The resistant lines showed a flavonoid content higher than that of susceptible ones. In vitro bioassays proved that, among endogenous flavonoids, quercetin and isorhamnetin possess a good inhibitory aphid reproduction rate. Flavonoid HPLC analyses of wild Vigna species supported evidence for the existence of different flavonoid chemotypes in some species of section Vigna. There are kaempferol chemotypes, kaempferol being the main aglycon detected, quercetin chemotypes, containing quercetin glycosides only, and two isorhamnetin chemotypes. When the resistance characteristics to aphids in different chemotypes of the same species were tested, it became evident that quercetin or isorhamnetin chemotypes showed a higher level of resistance compared to kaempferol chemotypes in the same species, thus demonstrating a direct involvement of quercetin or isorhamnetin in the resistance mechanism. These results can provide useful information for further studies on gene expression of resistance factors.

Animals↗
PubMed1990

[Bonding between resins for bridges and crowns and composites: an experimental quantitative assessment].

Bonding between resin for bridges and crowns and composite substances: an experimental and quantitative assessment. Using a rigorous scientific protocol, a photopolymerizing composite was "stuck" in vitro to samples of four resins C + B using an enamel-dentine bonding and silanic primer. Subsequently, bonding was performed in two experimental conditions (dry and humid environments) in addition to analysing the site of fracture.

Composite Resins↗
PubMed1989

[Cleidocranial dysostosis].

Cleidocranial dysostosis is a syndrome defined by some workers as "osteodental" insofar as it presents with variously associated skeletal and dental anomalies. The aetiology, clinical picture and pathological anatomy are analysed, stress being laid on dental anomalies and on dentoskeletal irregularities. Finally, two clinical cases observed in recent years at the University of Bari Odontostomatological Clinic are reported.

Child↗
PubMedDate not supplied

[Wegener's syndrome (or granulomatosis). A clinical case].

Wegener granulomatosis is characterized by focal necrotizing granulomatosis of the upper respiratory and pulmonary tracts, by a necrotizing vasculitis and focal necrotizing glomerulonephritis. Clinical symptoms typically include intractable sinusitis or persistent nasal obstruction, serous otitis media, hemoptysis and pleurisy. These symptoms can also be accompanied by intermittent fever, weight loss, myalgia and sensory neuropathy. The oral lesions, including palatal ulceration, lingual ulceration, aphthae, nonhealing extraction sockets, gingivitis, have been infrequently described. Wegener's granulomatosis occasionally presents in the early stages as a characteristic hyperplastic gingivitis, named by the authors "strawberry gums", which fails to respond to conventional periodontal therapy. A case is reported, in which this clinically distinctive gingivitis was the presenting lesion with the serous otitis, illustrating that less frequently occurring entities, such as Wegener's granulomatosis, should be considered in the differential diagnosis of localized gingival lesions which fail to respond to conventional therapy.

Adult↗