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Biomedical subjects

N Lucarelli

Publications and source records attributed to N Lucarelli.

7 recordsLinked to original sources

Specific local immunotherapy in the treatment of hay fever.

The authors refer results of a 3-year study carried out on ten patients suffering from hay fever, diagnosed by means of skin tests, specific nasal provocation and serum RAST who underwent specific local immunotherapy consisting of application of an aqueous allergenic extract, the initial level of which was based on threshold values resulting from the nasal provocation test. The two-monthly check ups were based on the evaluation of mucociliary clearance, anterior rhinorheomanometry, specific nasal provocation and the test of Maunsell for blocking antibodies, as well as on the drawing up of a daily symptomatological diary for each single patient. The results were extremely interesting: subsidence of symptoms during the pollinating season, an increase in the number of blocking serum antibodies and of threshold values relative to specific nasal provocation. Conductance and mucociliary clearance, which were both decidedly pathological before beginning the local immunotherapy, slowly returned to the norm. The authors, furthermore, refer that the use of disodium cromoglycate during the first months of specific local immunotherapy which allows them to reach doses 5-7 times greater than those obtainable with the above mentioned form of treatment, offers uncertain advantages as far as local and above all general immunity is concerned and this alone does not justify the use of nasal applications in the treatment of bronchial asthma of allergic origin.

Adolescent↗

Incidence of allergic rhinitis in children.

The authors give an account of the outcome of research done in the Allergo-Immunological Centre of the IInd ENT Division of Rome University, carried out among 210 children who were affected by nasal atopy. Particular stress was placed on the involvement of the nasopharyngo-tubal system. The age of the children ranged from 2-12 years and they underwent: 1) ENT visit; 2) allergy tests; 3) anterior rhinorheomanometry; 4) tubal function tests; 5) mucociliary clearance time; 6) X-ray examination of paranasal sinuses. The results revealed that the most frequent symptom in these children is rhinitis, whatever the allergic sensitization was. The forms of atopy which manifested themselves by chronical allergic patients (D.Pt. and P.O.) were the cause of: 1. asthmatic-type syndromes; 2. early onset of atopic symptoms around 4-7 years of age (9-10 years in the seasonal forms); 3. greater degree of extrinsic rhinitis with edema of the turbinates - the first step towards a polypoid degeneration of such subjects; 4. tubal functional deficit (60% of subjects allergic to P.O. and 50% allergic to D.Pt whereas only 27% are found in the seasonal forms); 5. mucociliary clearance linked directly with the length of disease; involvement of the paranasal sinuses (53/61 patients allergic to D.Pt., 9/28 allergic to P.O., 9/56 allergic to Graminacee). Furthermore the nasal patency was more insufficient in patients affected by the chronical forms of the atopy. In the light of these results the authors advocate focus attention on the significance of an early diagnosis of nasal atopy in children and the need for interdisciplinary collaboration among specialists.

Age Factors↗

Immotile cilia syndrome: radial spokes deficiency in a patient with Kartagener's triad.

Mucociliary transport and ultrastructure of nasal cilia in a 13 year old boy with Kartagener's triad, were investigated. Mucociliary transport was significantly delayed (greater than 30 minutes). Electron microscopy showed cilia lacking radial spokes, eccentric central tubules, and a dislocation of one the outer doublets. Dynein arms were present. We consider the radial spoke defect as a distinct congenital anomaly which contributes to the pathogenesis of the "immotile cilia syndrome".

Adolescent↗

Behaviour on the nasal provocation test in patients affected by conjunctivitis and/or asthma of allergic origin.

In the Allergo-Immunological Centre of Rome University we selected 120 patients of both sexes, ranging from 5-65 years of age, affected by asthma and/or conjunctivitis without past or present history of nasal impairment (itching, sneezing, hydrorrhea). As a result of the allergometric tests carried out, the authors divided the samples into three groups: 1) positive reaction to Dermatophagoides Pteronissimus (66.6%); 2) positive reaction to the Graminacee (28.3%); 3) positive reaction to Parietaria officinalis (5.1%). After having undergone the rhinoreomanometric test of nasal provocation, 50% of the patients revealed a positive reaction to the specific allergen, more specifically at 50 PNU/ml 40% of the case were positive, and at 100 PNU/ml 50% were positive. These results are discussed in the light of modern biological knowledge on the mastocytes in normal subjects and in those suffering from allergy.

Adolescent↗

[Simple electrostimulator for clinical gustometry].

The authors illustrate the technical characteristics of a low cost, pocket electrogustometer, which works on batteries and offers complete safety both for the patient and for the examiner; this model is able to carry out, both in normal and selected patients, the same functions as can be carried out with more sophisticated and costly equipment, currently available.

Electric Stimulation↗

Specific local immunotherapy in nasal allergy (preliminary report).

The preliminary results are presented of a study carried out on 23 subjects with nasal allergy to graminacea, 10 of whom were used as a control group to verify the clinical advantages and the possible side effects of a specific local immunotherapy carried out in spray form using progressively increasing doses of allergen in aqueous solution. From a clinical point of view, on the grounds of the score in the clinical diary, we were able to show that during the preseasonal stage only 5 patients treated with the allergen were free of symptoms as were the controls, whereas during the critical phase they were all free of symptoms in contrast to the crisis presented in the control group. The increase in the threshold of nasal provocation and in the serum level of blocking antibodies, revealed in the majority of the subjects affected by pollinosis and treated locally with the allergen, are to be considered fundamental to the clinical advantage obtained. In agreement with what has already been revealed after specific nasal provocation, local treatment with allergens caused in a majority of cases a slight increase in the time of mucociliar clearance, a phenomenon which must be taken carefully into consideration in as much as it could eventually represent an adverse side effect which needs an adequate countermeasure.

Adolescent↗