Relationship between the Appearance of Symptoms and Hospital Visits in Childhood Based on Japanese Statistical Data.

Background: Childhood health problems affect healthy growth. This study aimed to assess the symptoms and diseases requiring hospital visits commonly found in children in Japan and analyze their effects on health status.

Methods: Anonymized data on 1315 children aged 6-14 years were obtained from a national survey questionnaire.

Association between Drinking Habits and Oral Symptoms: A Cross-Sectional Study Based on Japanese National Statistical Data.

Aim: The purpose of this study was to investigate the association between drinking habits and subjective symptoms of the oral cavity based on Japanese national statistical data.

Methods: The subjects were 8,698 respondents of the Japan National Livelihood Survey 2013, in their 30s to 60s. The association between drinking habits and each survey item was investigated by contingency table analysis and binary logistic regression analysis.

Thermographic assessment of facial temperature in patients undergoing orthognathic surgery.

This study was conducted to assess the usefulness of thermography for quantifying facial temperature before and after orthognathic surgery and intermaxillary fixation, and the effects of these orthognathic procedures on facial temperature. Facial thermograms of 10 patients who underwent bilateral sagittal split ramus osteotomy (SSRO, one-jaw group) and another 10 patients who underwent Le Fort I osteotomy and bilateral SSRO (two-jaw group) were taken 1 day before orthognathic surgery (T1) and at release of intermaxillary fixation 7 days later (T2). Two thermograms taken 30 s (TG1) and 3 min (TG2) after the start of recording at T1 and T2 were used.

Differential susceptibility to hydrogen sulfide-induced apoptosis between PHLDA1-overexpressing oral cancer cell lines and oral keratinocytes: role of PHLDA1 as an apoptosis suppressor.

Hydrogen sulfide (H2S) is a novel gasotransmitter that plays multiple biological roles in various body systems. In addition to its endogenous production, H2S is produced by bacteria colonizing digestive organs, including the oral cavity. H2S was previously shown to enhance pro-apoptotic effects in cancer cell lines, although the mechanisms involved remain unclear.

Oral malodorous compound inhibits osteoblast proliferation.

Background: Oral malodorous compounds including hydrogen sulfide (H2S) are causative agents of periodontitis because the toxicities are similar to that of cyanate. Previous studies demonstrated that volatile sulfur compounds (VSCs) were highly toxic to periodontal tissues, causing a large reduction in the amount of collagen in human gingival fibroblasts and extracellular matrix as well as, for example, apoptosis, immunologic responses, and matrix metalloproteinase production. The objective of this study was to determine the effect of H2S on the proliferation of osteoblasts and a signaling transduction pathway through the mitogen-activated protein kinase (MAPK).

Effect of green tea on volatile sulfur compounds in mouth air.

Many food products are claimed to be effective in controlling halitosis. Halitosis is caused mainly by volatile sulfur compounds (VSCs) such as H(2)S and CH(3)SH produced in the oral cavity. Oral microorganisms degrade proteinaceous substrates to cysteine and methionine, which are then converted to VSCs.