Correlation between halitosis, oral health status and salivary ß-galactosidases and time spent in physical activities in children

AIM

The aim of this work was to evaluate the oral health status in children and to correlate it with time spent in physical activity per week.

MATERIALS AND METHODS

Fifty children (mean age 9±2 years) attending the first visit at the Paediatric Dental Unit of the University of Rome "Tor Vergata" have been included in the study. The parents of all patients were interviewed about the medical history of the children and specific data, in particular, the time spent in physical activity per week. A trained dentist examined the oral cavity of the patients and the following clinical parameters were recorded: number of deciduous and permanent teeth, caries (on deciduous and permanent teeth), presence of gingivitis (0=no; 1=yes), tongue coating score (from 0=none to 3= > 2/3 tongue dorsum surface covered)", oral infections (0=no; 1=yes), oral hygiene index (0=insufficient, 1=sufficient, 2=good), presence of at least one incongruous restoration (0=no, 1=yes), oral breathing (0=no; 1=yes), fissured tongue (0=no, 1=yes), presence of aftous ulcers, herpetic lesions or candidiasis (0=no, 1=yes), food stagnation (0=no; 1=yes). The level of salivary ?-galactosidases activity was measured spectrophotometrically. The subjects were classified into "Group 0": children who did not practice any sports beside physical education class; "Group 2": 2 hours per week; "Group 3": 3 hours; and "Group 4": 4 hours.

STATISTICS

Statistical analysis was performed using SPSS for Windows version 21 (IBM SPSS Inc., Chicago, IL, USA). The Pearson's correlation coefficient (P) was used to evaluate the linear relationship between continuous variables, and the Spearman's correlation coefficient (S) was calculated for ordinal variables. Analysis of variance (ANOVA) and the Fischer's Least Significant Difference (LSD) test were used to compare the parameters analysed in the study. Data were analysed using linear regression and descriptive statistics. The significance threshold was set at 0.05.

RESULTS

A more physically active lifestyle was significantly associated with a better oral hygiene and a reduced level of salivary ?-galactosidases, halitosis, gingivitis and tongue coating. Results of the organoleptic evaluation of halitosis performed by the parents and sport hours/week practiced have shown that Group 0 and 2 were characterised by statistically significant higher scores with respect to the other groups (Group 0 vs. Group 3, p=0.014; Group 2 vs. Group 3, p=0.030; Group 0 vs. Group 4, p=0.001; Group 2 vs. Group 4, p=0.002) (P= -0.458). The spectrophotometric quantification of salivary ?-galactosidases has shown that increasing the hours of sports, the enzyme activity significantly decreases (S= -0,330); similar levels were found with 0 and 2 hours of sports, but an important decrease has been recorded with both 3 (Group 0 vs. Group 3, p=0,011; Group 2 vs. Group 3, p=0,006) and 4 hours of sports practiced (Group 0 vs. Group 4, p=0,014; Group 2 vs. Group 4, p=0,008). The level of significance between children who did not practice sport and those who did for 3 and 4 hours a week was 0.005 (Group 0 vs. Group 3) and 0.0018 (Group 2 vs. Group 4) with respect to tongue coating scores (P= -0,511) and 0.012 for both groups with respect to gingivitis (Group 0 vs. Group 3; Group 0 vs. Group 4) (P=-0,427).

CONCLUSION

Children who practiced sport showed a better oral hygiene level and lower halitosis, with respect to those who did not.

Anabolic Steroid Nandrolone Augments Hepatic Regenerative Response in Rats

The success of recovery after liver resection depends on the regeneration and functions of the remnant liver. In this study we investigated whether liver regeneration was facilitated by nandrolone decaonate after two-thirds partial hepatectomy in rats. Study animals were pretreated with nandrolone (5 mg/kg), while control animals received a placebo. Animal were sacrificed at 12, 24, 48, and 72 hours. We compared the survival rates, liver function tests as well as the amount of apoptosis by terminal deoxynucleotidyl transferase-mediated deoxyuridine-biotin nick end labeling assay, and regeneration, which was expressed as ratio of proliferating cell nuclear antigen and restoration ratio. A significant increase in hepatocyte regeneration at 24 and 48 hours in partially hepatectomized rats treated with nandrolone decaonate was observed compared to controls. This observation was confirmed by the significant acceleration of the liver restoration rate, which was 1/5 faster than in partially hepatectomized controls. The results of this study indicate that liver regeneration in rats treated with nandrolone show a prompt, faster regeneration after partial hepatectomy.

Melatonin reduces bacterial translocation after intestinal ischemia-reperfusion injury

Melatonin, the primary pineal hormone, has been reported to protect from oxidative injury after ischemia-reperfusion (IR). The aim of this study was to evaluate the effects of exogenous melatonin on intestinal integrity, ileal colonization, and bacterial translocation 45-minute after mesenteric IR. Sixteen male ACI rats randomly divided into two groups underwent 45-minutes intestinal ischemia by clamping the superior mesenteric artery. One hour prior to ischemia, study animals (n=8, group A) were treated with melatonin (10 mg/kg IP) while control animals (n=8, group B) received the same volume of saline solution. An additional six animals underwent laparotomy and served as a sham-operated group. Animals were sacrificed 24 hours after reperfusion; peritoneal swabs and biopsies of liver, spleen, lung, mesenteric lymph nodes, cecum, and terminal ileum were obtained for microbiology. The ileum samples were also processed for histopathological evaluation of IR-induced injury. Twenty-four hours after reperfusion bacterial translocation to the peritoneal cavity present in all group B animals was reduced to 37.5% among those that were melatonin-treated (group A; P <.05). Furthermore bacterial translocation to mesenteric lymph nodes, spleen, and liver was significantly lower in group A than group B (P <.05). Although cecal and ileal counts did not differ between the two groups, ileal counts from control animals showed increased colonization. Accordingly, a single injection of exogenous melatonin significantly reduced the intestinal IR injury and prevented bacterial translocation.