Valeria Luzzi

Learn More
Injection of a porcine cytosolic sperm factor (SF) or of a porcine testicular extract into mammalian eggs triggers oscillations of intracellular free calcium ([Ca(2+)](i)) similar to those initiated by fertilization. To elucidate whether SF activates the phosphoinositide (PI) pathway, mouse eggs or SF were incubated with U73122, an inhibitor of events(More)
To measure the concentration of inositol 1,4,5-trisphosphate ([IP3]) in small regions of single Xenopus oocytes, a biological detector cell was combined with capillary electrophoresis. This method is 10, 000 times more sensitive than all existing assays enabling subcellular measurement of [IP3] in Xenopus oocytes. Upon addition of lysophosphatidic acid to(More)
AIM Noonan syndrome is a rare genetic alteration; the responsible gene is located on the long arm of chromosome 12. CASE REPORT The authors examined a caucasic girl of eight years with Noonan syndrome. The patient had systemic problems, such as: otitis, heart trouble, language disturbances and asymmetry of the lower limbs. Light mental delay was also(More)
OBJECTIVE This study investigated the non-nutritive sucking habits in a sample of patients with malocclusions at the Unit of Pediatric Dentistry of the "Sapienza", University of Rome. MATERIALS AND METHODS 81 children (average age 5.9 years) were examined from January to December 2008. All children showed typical malocclusions that could be associated(More)
BACKGROUND The fundamental therapeutic problems related to amelogenesis imperfecta treatment are governed by the need to effect primary prevention interventions, reducing the risk of calculus accumulation and caries. There are also aesthetic and functional rehabilitative needs. Clinical management rehabilitation techniques vary depending on the AI type, but(More)
BACKGROUND Prolonged oral respiration is known to cause postural alterations, which can lead to dental malocclusions. Allergic rhinitis, a common cause of upper airway obstruction in children, must therefore be seen as a possible risk factor in the development of malocclusions. AIM Aim of this study was to investigate the association between allergic(More)
INTRODUCTION Sleep disordered breathing (SDB) might affect craniofacial growth and children with obstructive sleep apnea syndrome present an increase in total and lower anterior heights of the face and a more anterior and inferior position of the hyoid bone when compared to nasal breathers. OBJECTIVE To investigate the correlation between rhinomanometric(More)
AIM Healthcare facility management requires the optimisation of the quality of services offered. METHODS The Authors adopted a questionnaire as a means to assess customer satisfaction and needs. The Questionnaire has been designed to address adults, i.e., parents or guardians of children attending the Paediatric unit as patients. To estimate their degree(More)
The purpose of this study was to assess by surface electromyography (sEMG) the changes in upper and lower orbicular oris (OO) muscles produced by a preformed functional device in subjects with Class II, division 1 malocclusion, deep bite, and labial incompetence. Twenty-eight subjects were selected: 13 subjects (mean age 9 ± 1.5 years) with Class II(More)
Prior strategies to measure inositol 1,4,5-trisphosphate (IP(3)) in single cells either have been qualitative or have had a limited spatial resolution. Capillary electrophoresis combined with a biological detector cell has been used to quantitate IP(3) in small regions of a Xenopus oocyte. To improve the detection limits of this method, we elucidated the(More)