1,211 research outputs found

    That is how we do it around here: Levels of identification, masculine honor, and social activism against organized crime in the south of Italy

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    Masculine honor is an important cultural code in the south of Italy. Italian criminal organizations (COs) manipulate and exploit this code to maintain legitimacy among local populations and exert social control in the territory where they operate. This research tested the hypothesis that different levels of identification—the region and the nation—would have opposite associations with male honor-related values and, indirectly, with intentions to oppose COs collectively. Results from a sample of young southern Italians (N?=?170) showed that regional identification positively predicted endorsement of male honor-related values, which in turn were associated with lowered intentions to oppose COs. In contrast, national identification negatively predicted male honor-related values, associated in turn with stronger intentions to oppose COs. These results also held when perceived risk and social dominance orientation were taken into account. Directions for future research are discussed

    Association between asymptomatic carotid atherosclerosis and degenerative aortic stenosis.

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    OBJECTIVE: Degenerative aortic stenosis shows similarities with atherosclerosis. To confirm the hypothesis that aortic stenosis is an "atherosclerosis-like" disease, we investigated the association between degenerative aortic stenosis and atherosclerosis of carotid arteries. METHODS: We studied 270 consecutive patients, 135 with degenerative aortic stenosis (trans-aortic peak velocity ≥ 2 m/sec) and other 135 subjects without aortic valve disease. All patients underwent echocardiography and ultrasound scan of the supra-aortic trunks to assess the presence of plaque and/or intima-media thickening (IMT). RESULTS: Atherosclerosis of carotid arteries (IMT and plaque) was significantly more frequent in patients with aortic stenosis than in controls (95.5% vs. 66.6%, p < 0.0001). The same result was confirmed as concerns carotid plaques (69.6% vs. 42.2%, p < 0.0001). In addition, there was a significant association between aortic stenosis and degenerative carotid plaque (OR = 3.13; 95% C.I. = 1.90-5.17). Thus the presence of a linear correlation between the trans-aortic peak velocity of the cases and the thickness of the plaques and IMT was evaluated by calculating the coefficient of correlation (R = 0.15 for plaque and R = 0.53 for IMT). CONCLUSIONS: The presence of carotid atherosclerosis is associated with degenerative aortic stenosis and the severity of aortic stenosis corresponds to an increase of the thickness of plaque and IMT. This relationship is quite new. Our result strengthens the pathogenetic hypothesis "atherosclerosis-like" of degenerative aortic stenosis and suggest the ultrasound scan as a non invasive method for risk stratification in patient with aortic stenosis, with therapeutic implications especially for higher risk subgroups

    Osteonecrosis of the jaw related to everolimus and bisphosphonate: a unique case report?

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    Osteonecrosis of the jaw (ONJ) is a rare but serious lesion of the jaw, characterized mainly by exposed necrotic bone;it is related to various drugs, usually used for treating patients with advanced malignancies. Drugs implicated in ONJ are: nitrogen-containing bisphosphonates (NBPs), denosumab, anti-angiogenic drugs (e.g bevacizumab, sunitinib,sorafenib) and the selective mammalian target of rapamycin mTOR, everolimus. Previous data regarding the combining of NBPs with antiangiogenic agents conflict with some reports (indicating a similar risk of ONJ compared with the use of NBPs alone1); other reports show significantly higher rates (18% vs 1% with NBPs alone) of the incidence of ONJ2. The mTOR is a serine/threonine kinase, a component of a complex signaling pathway, involved in cell growth and metabolism, reducing VEGF levels and inhibiting the growth and proliferation of tumor cells, endothelial cells, fibroblasts and blood vassels. Everolimus has been approved for the treatment of advanced breast cancer, neuroendocrine tumors of pancreatic origin (pNET), and advanced renal cell carcinoma (RCC). This case report may help to explain the temporal relationship between therapy and the occurrence of ONJ with the sequential use of NBPs and mTOR. A 64-year-old male patient underwent a left, radical nephrectomy in 1992 for clear-cell renal carcinoma. In July 2010 he developed a bone metastasis and he was treated with zoledronic acid 4 mg IV every 4 weeks between 7 July 2010 and 17 August 2012. In February 2011 he had another recurrence, a lung metastasis treated with lobectomy and everolimus 10 mg/die for 6 months from 11 April 2011 to 31 October 2012. In 13 October 2012 the patient showed a facial enlargement and oral fistula in the first quadrant with no history of tooth extraction. A bone scan revealed an ill-defined radiolucency and an orosinusal communication. In January 2013 the patient underwent a right and partial left maxillectomy and is currently being followed up to minimize the risk of new adverse reactions

    Peroxisome proliferator-activated receptor alpha plays a crucial role in behavioral repetition and cognitive flexibility in mice

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    Acknowledgments We thank Luca Giordano, Giovanni Esposito and Angelo Russo for technical assistance and Dr. Livio Luongo (Second University of Naples–Italy) for critical discussions. This work was supported by a Grant PRIN from Ministry of Education, Universities and Research (MIUR), Italy, to A.C. and the Wellcome Trust (WT098012) to L.K.H. and BBSRC (BB/K001418/1) to L.K.H. and G.D’A. G.D’A. received partial supports from a “FORGIARE” post-doctoral fellowship cofounded by the Polo delle Scienze e Tecnologie per la Vita, University of Naples Federico II and Compagnia di San Paolo Foundation, Turin, Italy (2010–2012).Peer reviewedPublisher PD

    RESTITUTIO AD INTEGRUM IN A CASE OF ONJ RELATED TO BEVACIZUMAB

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    Aim. Bevacizumab is a humanized recombinant monoclonal antibody that blocks vascular endothelial growth factor (VEGF). The activity of VEGF is the ability to promote the vascular endothelial cells proliferation inducing the formation of new blood vessels. Bevacizumab is used in the treatment of selected advanced colon, lung, renal and central nervous system tumours and plays a developing role in the management of breast and ovarian cancers. It is also injected intraocularly for treatment of macular degeneration. Recently, bevacizumab has been reported as responsible of drug-related osteonecrosis of the jaw (ONJ), showing a histological pattern similar to bisphosphonate-related ONJ. Moreover, it may increase the risk for osteonecrosis of the jaw when administered in isolation or when given concurrently with bisphosphonates. Materials and methods. Only few case reports in literature have been reported describing ONJ after bevacizumab administration. In June 2011, a 57-year-old female patient was referred to our department for pain in the left posterior mandibular region. She reported the following anamnestic data: in 2002, for the diagnosis of breast cancer, she underwent to left quadrantectomy and radiant treatment; from October 2010, she was receiving multimodal chemotherapy containing bevacizumab. No previous treatment with bisphosphonates, or other known local and systemic risk factors were reported. Intraoral examination showed a painful area of bone exposure in the left posterior lingual mandible. The surrounding soft tissue was erythematous with purulent discharge and with swelling of the extraoral soft tissue of the left mandible. After interaction with her oncologist, bevacizumab has been suspended and systemic antibiotic (ampicillina/sulbactam intramuscularly twice daily for 8 days and metronidazole 250mg per os twice daily for 8 days), local antiseptics (chlorhexidine 0.2% mouth rinses and 0.5% chlorhexidine gel) were administered. Results. After 15 days, she showed a complete healing after spontaneous sequestration of a necrotic bone fragment. Conclusions. The antiangiogenic and antiresorptive effects of bevacizumab are dose-dependent and time-dependent. Probably this implies that angiogenesis, bone remodelling and healing processes should restart after drug cessation. The present case supports the necessity to apply BRONJ prevention protocol also in patients in therapy with bevacizumab

    Oral health status and periodontitis in Alzheimer's disease patients: A case control Study in a Sicilian rural community

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    Aim. Dementia is a common disorder among the elderly. Alzheimer’s disease (AD) is the most common cause of dementia. In addition to known risk factors (e.g. age and familiarity) of AD, recently it has been suggested a possible promoting role for chronic inflammatory infective diseases. Periodontal disease (PD) is a frequent chronic multi-bacterial infection involving the tissues supporting the teeth; in addition to promoting inflammation locally, the periodontal pathogens possess mechanisms able to influence the systemic balance of inflammatory mediators. Similarly to other systemic diseases (e.g. cardiovascular disease, diabetes, renal diseases and low birth weight), a possible link has been proposed between PD and the development and progression of AD. Aim of the present study was to evaluate the oral health status and the prevalence/severity of PD in a group of patients affected by AD compared to a control group of healthy subjects. Materials and methods. A case-controlled clinical trial was designed to compare patients with AD (Test group - T; n = 16; M: 8; F: 8, range age 64-93 yrs) with healthy controls (Control group - C; n = 16; M: 8; F:8; range age 64-92 yrs). The population study was named ZAP (Zabut Aging Project) and all participants, enrolled in a Sicilian rural community (Sambuca di Sicilia, AG, Italy), were matched for age and sex. Following variables were recorded: smoking and drinking habits, number of teeth, Decayed Missed Filled Teeth scoring (DMFT), measurement of the probing depth (CPI and PSR index). The association between AD and PD, socio-demographic and behavioural-clinical variables was assessed using the χ2 test or Fisher’s exact test, as appropriate. To measure the association level, crude OR and the 95% Confidence Interval (CI) were calculated. Statistical significance of the difference in the average DMFT between cases and controls was assessed using the Student’s t-test. A p value ≤0.05 was considered statistically significant. Results. One patient of T group was a smoker versus four of C group; four T patients were drinker versus two of C group. Seven of T group (43.7%) were totally edentulous, conversely only 2 (12.5%) of controls have the same condition (p=0.04). With respect to oral status, DMFT index was 23.7 ±9.0 in T patients versus 25.2±7.8 in controls (p=0.633). There were no significant differences between T and C groups regarding periodontal index: high PSR and CPI scores (>3) were recorded in 77.8% of AD patients and 46.1% of health cases (p >0.05). A similar distribution among two groups was observed regarding the other investigated variables (e.g. smoking and drinking habits). Conclusions. In this rural Sicilian adult/elderly community, poor oral health is frequent with a DMFT score higher than general population. The obtained data do not support the hypothesis of a major prevalence and severity of PD among AD patients. However, to confirm these preliminary results the recruitment of a wider sample size and further data, regarding proteomic salivary profiles and RT PCR-based microbiological investigation on sub-gingival plaque samples, still need in order to better clarify the role of PD and periodontal pathogens in the AD natural history

    Osteoporosis, jawbones and periodontal disease

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    The association between osteoporosis and jawbones remains an argument of debate. Both osteoporosis and periodontal diseases are bone resorptive diseases; it has been hypothesized that osteoporosis could be a risk factor for the progression of periodontal disease and vice versa. Hypothetical models linking the two conditions exist: in particular, it is supposed that the osteoporosis-related bone mass density reduction may accelerate alveolar bone resorption caused by periodontitis, resulting in a facilitated periodontal bacteria invasion. Invading bacteria, in turn, may alter the normal homeostasis of bone tissue, increasing osteoclastic activity and reducing local and systemic bone density by both direct effects (release of toxins) and/or indirect mechanisms (release of inflammatory mediators). Current evidence provides conflicting results due to potential biases related to study design, samples size and endpoints. The aim of this article is to review and summarize the published literature on the associations between osteoporosis and different oral conditions such as bone loss in the jaws, periodontal diseases, and tooth loss. Further well-controlled studies are needed to better elucidate the inter-relationship between systemic and oral bone loss and to clarify whether dentists could usefully provide early warning for osteoporosis risk

    Bisphosphonate-related osteonecrosis of the jaw (BRONJ): run dental management designs and issues in diagnosis.

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    Recently, jawbone osteonecrosis has been largely reported as a potential adverse effect of bisphosphonate (BP) administration. Because of the peculiar pharmacokinetic and pharmacodynamic features of the BF (mainly for i.v. administration), their efficacy and large use, some major issues have to be taken into account extendedly both by oncologists and by dentists: 1) therapeutic dental protocol for patients with diagnosis of bisphosphonate-related osteonecrosis of the jaw (BRONJ); 2) dental strategies for patients in former or current i.v. BF treatment and in absence of BRONJ signs; 3) strategies for patients before i.v. BF treatment. Clinical features and guidelines for the management of this condition have been investigated and reported, sometimes with unclear indications; hence, on the basis of the literature and our clinical experience, major end points of this paper are providing our run protocols for the issues above described and, finally, focusing on a crucial, but not extensively investigated point: the early and correct diagnosis of BRONJ versus metastatic jaw lesions in cancer patients

    Mucoadhesive polymers for oral transmucosal drug delivery: a review

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    he oral mucosa offers an interesting site for the application of dosage forms that release drugs within/throughout the oral mucosa, by assuring a high drug bioavailability for topic and systemic effects. However, the relative permeability of the oral mucosa and the washing effect related to the oral fluids and mechanical stresses must be considered in the formulation of oral dosage forms. Since a sustained drug release can be guaranteed only if dosage forms remain in contact with the oral site of absorption/application for a prolonged time, the development of mucoadhesive dosage forms is mandatory. The mucoadhesion is a complex phenomenon and the mucoadhesive bond consists of two different parts, the mucoadhesive polymers and the mucous substrate. In addition to factors related to the oral mucosa and oral environment features, the physical-chemical characteristics of mucoadhesive polymers must be also considered as factors influencing the mucoadhesive bonds. While it is not possible to modify the mucosal features or it is possible to modify or inhibit only in part certain mucosal processes, the knowledge of polymer properties influencing mucoadhesive bonds allows to modify or to control these properties in developing increasingly effective mucoadhesive systems. The aims of this review are to discuss the several mechanisms and factors behind the phenomenon of mucoadhesion with particular reference to the features of the oral environment, oral mucosa, and polymeric compounds influencing mucoadhesion process. Finally, a brief mention to the main mucoadhesive dosage forms designed for oral transmucosal drug delivery is made
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