Objective: To analyze the iodine nutritional status of children aged 8-10 in Baoshan City, so as to comprehensively evaluate the effectiveness of eliminating and consolidating iodine deficiency disorders in Baoshan City. Methods: From 2018 to 2024, a stratified random sampling method was used to sample 7 363 non boarding children aged 8-10 from 35 survey sites in 5 counties of Baoshan City (Longyang County, Shidian County, Changning County, Tengchong City, Longling County). The salt iodine content and urinary iodine concentration were detected, and the thyroid volume of children was measured by ultrasound. Group comparison was conducted by using Mann-Whitney U test, Kruskal-Wallis H test, and Chi square test. Spearman rank correlation analysis was used to investigate the correlation of salt iodine, urinary iodine and thyroid volume. Results: A total of 7 361 samples of household edible salt for children were detected. The iodized salt coverage rate was 99.70%, the qualified iodized salt consumption rate was 97.02 %. The proportion of unqualified iodized salt fluctuated and decreased from 3.14% in 2018 to 2.14% in 2024. The median iodine content of household edible salt for children was 23.70 (21.60, 25.80) mg/kg. The median urinary iodine of children was 217.41 (152.40, 294.59) μg/L, and the proportions of iodine deficiency, adequate iodine, and iodine excess were 9.75 %, 66.66%, and 23.58%, respectively. There were statistically significant differences in the median urinary iodine of children among different years, ages, genders and before and after the supply of non iodized salt ( Z/H =134.88, 11.04,-4.28,-2.66, all P < 0.01). An average thyroid volume of children was 3.32 (2.77, 3.93) mL, with a goiter rate of 1.91%. Before and after the implementation of non iodized salt supply in Baoshan City in 2023, there were no statistically significant differences in the median iodine content of household edible salt and the goiter rate of children ( Z/χ 2=-1.54, 3.25, both P >0.05), but there were statistically significant differences in the qualified status of iodized salt, the median urinary iodine, and the frequency distribution of urinary iodine ( χ 2/Z =15.53,-2.66, 10.14, all P <0.05). Salt iodine was positively correlated with urinary iodine ( r =0.04) and negatively correlated with thyroid volume ( r =-0.07), and urinary iodine was negatively correlated with thyroid volume ( r =-0.03) (all P < 0.05 ). The thyroid volume of children consuming iodized salt was larger than that of children consuming non iodized salt ( H = 9.99 ), and there were statistically significant differences in thyroid volume among children with different urinary iodine levels ( H =15.13) (both P <0.01). Conclusions From 2018 to 2024, the overall iodine nutritional level of children aged 8-10 in Baoshan City is at an adequate level. The elimination status of iodine deficiency disorders has been continuously consolidated.

Monocarboxylic acid transporter 1 (MCT1) maintains axonal function by transferring lactic acid from oligodendrocytes to axons. Subarachnoid hemorrhage (SAH) induces white matter injury, but the involvement of MCT1 is unclear. In this study, the SAH model of adult male Sprague-Dawley rats was used to explore the role of MCT1 in white matter injury after SAH. At 48 h after SAH, oligodendrocyte MCT1 was significantly reduced, and the exogenous overexpression of MCT1 significantly improved white matter integrity and long-term cognitive function. Motor training after SAH significantly increased the number of ITPR2
Animals ; Male ; MicroRNAs/genetics* ; Monocarboxylic Acid Transporters/genetics* ; Rats ; Rats, Sprague-Dawley ; Subarachnoid Hemorrhage ; Symporters/genetics* ; White Matter/injuries*

Objective: To identify nasal width changes occurring after Le Fort Ⅰosteotomy and to compare prospectively the effect of three surgical techniques for controlling postoperative nasal width . Methods:In the study, 79 patients (22 male and 57 female, mean age 23.2 ±3.4 years), who re-ceived Le Fort Ⅰosteotomy at Peking University Hospital of Stomatology from 2011 to 2014, were ran-domly divided into three groups .Group 1 was treated with traditional intraoral alar base cinch suture ( ABCS);Group 2 with extraoral ABCS, and Group 3 with traditional ABCS plus an extra intraoral suture at points G.lat.All the patients had taken 3D photos using 3dMD camera before operation , and 3, and 6 months after operation.The nasal widths, which were indicated as distances between Sbal-Sbal, G.lat-G.lat and Al-Al, were measured by two examiners in the 3D photos three times with a time-interval of one week .SPSS 13 .0 was used to do the statistic analysis .Results: At the end of the postoperative 6 months, the nasal widths lessened as compared with the postoperative 3 months.No significant diffe-rences were found between the three groups 6 months after the operation .The degree of the postoperative nasal width widening had positive correlation with that of the intraoperative nasal width widening , and had negative correlation with the initial nasal width and the amount of post-suture narrowing .Conclusion:There is no difference between three suturing techniques for controlling nasal width widening after Le FortⅠosteotomy.The postoperative nasal width-widening can’t be totally avoided, and the alteration might last at least 6 months after the operation .For patients with narrow nasal width and need to move maxilla forward , more overcorrection of ABCS is needed to control the postoperative nasal base widening .