ABSTRACT
Objective:To evaluate the accuracy of parents ’ perception of whether their child is a picky eater and the specific food category the children avoideating according to the food frequency question-naire.Methods:This research selected 1 663 infants aged 4-36 months receiving non-diary complimen-tary food from maternal, infants, nutrition and growth study (MING Study) in 8 Chinese cities in which a combination of systematic cluster random sampling and purposive sampling was used .The general infor-mation, dietary status and picky eating status were collected through a self-designed questionnaire from the caregiver of the children .According to the parents ’ perception , the children were classified into picky/non-picky groups or avoid/non-avoid to a specific food category groups .Mann-Whitney U test was used to compare between the groups .Results: The reported percentage of picky eaters increased from 7.37%in 4-6 months old infants to 36.20%in 25-36 months old infants .Most picky infants in 4-6 months and 7-12 months old infants avoided eating dairy food ( 25% and 24%); while most picky toddlers aged 13-24 months and 25-36 months avoided eating vegetables (26.92% and 47.46%). The infants aged 4-6 months and 7-12 months who were perceived as picky by their parents took more kinds of food (8 and 19.5 kinds) than those who were not (6 and 18 kinds), while the picky toddlers aged 13-24 months and 25-36 months took fewer kinds of food (28.5 and 34 kinds for picky eaters, 31 and 37 kinds for non-picky eaters ) .The parents of infants aged 4-6 months judged correctly in every category of food without any statistical significance;the parents of 7-12 months old infants judged cor-rectly only in dairy food and eggs with statistical significance;those of 13-24 months old infants judged correctly in every food category except for vegetables with statistically significant difference in the category of eggs;those of 25-36 months old toddlers misjudged in dairy , beans and grains with no statistically significant difference in every category .Conclusion: Parents tend to misjudge their children ’ s picky eating behavior before the first 12 months of the child , and tend to make a more accurate perception after the 12th month.
ABSTRACT
Objective To discover radioresistance-associated proteins by performing comparative proteomic analysis on nasopharyngeal carcinoma cell lines.Methods The total proteins were extracted from radioresistant human nasopharyngeal carcinoma cell line CNE-2R and its parental cell line CNE-2,respectively.These proteins were separated by high quality two-dimensional polyacrylamide gel electrophoresis (2-DE) and then the 2-DE profiles were screened for differentially expressed protein spots by the Image Master 5.0 software.Those spots were identified by a matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry.Results 32 significantly differentially expressed protein spots were screened in two different radiosensitivity cell lines and 11 proteins were identified by tandem mass spectrometry,among which 3 proteins were up-regulated in radioresistant human nasopharyngcal carcinoma cell line CNE-2R and the other 8 proteins were down-regulated.Conclusions The differentially expressed proteins of nasopharyegeal carcinoma cells with different radiosensitivity were mainly involved in apoptosis regulation,DNA damage and repair,cell cycle regulation,RNA transcription,cell signaling,cytoskeleton formation and radiation stress responses.