@article {10832,
	title = {Photobiomodulation at Multiple Wavelengths Differentially Modulates Oxidative Stress  and .},
	journal = {Oxid Med Cell Longev},
	volume = {2018},
	year = {2018},
	month = {2018},
	pages = {6510159},
	abstract = {<p>Photobiomodulation (PBM) is emerging as an effective strategy for the management of multiple inflammatory conditions, including oral mucositis (OM) in cancer patients who receive chemotherapy or radiotherapy. Still, the poor understanding of the mechanisms by which the light interacts with biological tissues and the heterogeneity of light sources and protocols employed worldwide significantly limits its applicability. Reactive oxygen species (ROS) are massively generated during the early phases of OM and play a major role in the pathogenesis of inflammation in general. Here, we report the results of a clinical and experimental study, aimed at evaluating the effect of laser light at different wavelengths on oxidative stress  in oncologic patients suffering from OM and  in two cell types abundantly present within the inflamed oral mucosa, neutrophil polymorphonuclear (PMN) granulocytes, and keratinocytes. In addition to standard ROS detection methods, we exploited a roGFP2-Orp1 genetically encoded sensor, allowing specific, quantitative, and dynamic imaging of redox events in living cells in response to oxidative stress and PBM. We found that the various wavelengths differentially modulate ROS production. In particular, the 660 nm laser light increases ROS production when applied either before or after an oxidative stimulus. In contrast, the 970 nm laser light exerted a moderate antioxidant activity both in the saliva of OM patients and in both cell types. The most marked reduction in the levels of ROS was detected in cells exposed either to the 800 nm laser light or to the combination of the three wavelengths. Overall, our study demonstrates that PBM exerts different effects on the redox state of both PMNs and keratinocytes depending on the used wavelength and prompts the validation of a multiwavelength protocol in the clinical settings.</p>},
	keywords = {Adult, Aged, Aged, 80 and over, Female, Humans, Keratinocytes, Lasers, Semiconductor, Low-Level Light Therapy, Male, Middle Aged, Neutrophils, Oxidation-Reduction, Oxidative Stress, Stomatitis},
	issn = {1942-0994},
	doi = {10.1155/2018/6510159},
	author = {Rupel, Katia and Zupin, Luisa and Colliva, Andrea and Kamada, Anselmo and Poropat, Augusto and Ottaviani, Giulia and Gobbo, Margherita and Fanfoni, Lidia and Gratton, Rossella and Santoro, Massimo and Di Lenarda, Roberto and Biasotto, Matteo and Zacchigna, Serena}
}
@article {7738,
	title = {Polymorphisms in sweet taste genes (TAS1R2 and GLUT2), sweet liking, and dental caries prevalence in an adult Italian population.},
	journal = {Genes Nutr},
	volume = {10},
	year = {2015},
	month = {2015 Sep},
	pages = {485},
	abstract = {<p>The aim of the study was to assess the relationship between sweet taste genes and dental caries prevalence in a large sample of adults. In addition, the association between sweet liking and sugar intake with dental caries was investigated. Caries was measured by the decayed, missing, filled teeth (DMFT) index in 647 Caucasian subjects (285 males and 362 females, aged 18-65~years), coming from six villages in northeastern Italy. Sweet liking was assessed using a 9-point scale, and the mean of the liking given by each individual to specific sweet food and beverages was used to create a sweet liking score. Simple sugar consumption was estimated by a dietary history interview, considering both added sugars and sugar present naturally in foods. Our study confirmed that polymorphisms in TAS1R2 and GLUT2 genes are related to DMFT index. In particular, GG homozygous individuals for rs3935570 in TAS1R2 gene (p value~=~0.0117) and GG homozygous individuals for rs1499821 in GLUT2 gene (p value~=~0.0273) showed higher DMFT levels compared to both heterozygous and homozygous for the alternative allele. Furthermore, while the relationship sugar intake-DMFT did not achieve statistical significance (p value~=~0.075), a significant association was identified between sweet liking and DMFT (p value~=~0.004), independent of other variables. Our study showed that sweet taste genetic factors contribute to caries prevalence and highlighted the role of sweet liking as a predictor of caries risk. Therefore, these results may open new perspectives for individual risk identification and implementation of target preventive strategies, such as identifying high-risk patients before caries development.</p>},
	issn = {1555-8932},
	doi = {10.1007/s12263-015-0485-z},
	author = {Robino, Antonietta and Bevilacqua, Lorenzo and Pirastu, Nicola and Situlin, Roberta and Di Lenarda, Roberto and Gasparini, Paolo and Navarra, Chiara Ottavia}
}
