This study examined the current status of foodservice management in elderly welfare facilities and evaluated food service workers' food safety practices and knowledge. For this, the directors of 20 elderly welfare facilities (each with fewer than 50 residents) located in Seoul were interviewed and a survey of 40 foodservice workers was conducted to determine their food safety knowledge and practices. The facilities accommodated an average of 28 residents. All the facilities were self-operated and approximately 62% were dependent on payments by residents. Only 15% had a dietitian in charge of menu planning, food purchasing, and food safety management. Approximately 50% had their facility managers take responsibilities for menu planning and food safety management. Most of the facilities provided food safety training within their own facility and sanitized their utensils, cutting boards, and dishcloths on a daily basis. A limited number of foodservice workers, insufficient training programs, and budget constraints were some of the major barriers to food safety management. Their average score on food safety practices was 1.62, and that on food safety knowledge was 17.6 out of 19 points. These results indicate that the foodservice workers had good food safety knowledge and appropriate food safety practices. There was a significant correlation only between food safety practices related to receiving and storing food products and knowledge of personal hygiene.
Aged ; Budgets ; Fees and Charges ; Food Safety ; Food Services ; Humans ; Hygiene ; Menu Planning

Background: While the clinical course of radiation-induced meningioma (RIM) is considered to be more aggressive than that of sporadic meningioma (SM), the genetic predisposition for RIM is not established well. The present study aimed to analyze the clinical and genetic characteristics of RIMs to increase understanding of the tumorigenesis and prognosis of RIMs. Methods: We investigated a database of 24 patients who met the RIM criteria between January 2000 and April 2023. Genetic analysis through next-generation sequencing with a targeted gene panel was performed on 10 RIM samples. Clinical, radiological, and pathological parameters were evaluated with genetic analyses. Results: The median ages for receiving radiotherapy (RT) and RIM diagnosis were 8.0 and 27.5 years, respectively, with an interval of 17.5 years between RT and RIM diagnosis. RIMs tended to develop in non-skull bases and multifocal locations. Most primary pathologies included germ cell tumors and medulloblastoma. The tumor growth rate was 3.83 cm 3 per year, and the median doubling time was 0.8 years. All patients underwent surgical resection of RIMs. The histological grade of RIMs was World Health Organization grade 1 (64%) or 2 (36%). RIMs showed higher incidences in young-age (63%), high-dose (75%), and extendedfield (79%) RT groups. The recurrence rate was 21%. Genetic analysis revealed NF2 one copy loss in 90% of the patients, with truncating NF2 mutations and additional copy number aberrations in grade 2 RIMs. TERT promoter mutation and CDKN2A/B deletion were not identified. Notably, loss of H3K27me3 was identified in 26% of RIMs. H3K27me3 loss was associated with a higher prevalence of grade 2 RIMs (67%) and high recurrence rates (33%). Conclusion The study reveals a higher prevalence of high-grade tumors among RIMs with more rapid growth and higher recurrences than SMs. Genetically, RIMs are primarily associated with NF-2 alterations with chromosomal abnormalities in grade 2 tumors, along with a higher proportion of H3K27me3 loss.

Background: While the clinical course of radiation-induced meningioma (RIM) is considered to be more aggressive than that of sporadic meningioma (SM), the genetic predisposition for RIM is not established well. The present study aimed to analyze the clinical and genetic characteristics of RIMs to increase understanding of the tumorigenesis and prognosis of RIMs. Methods: We investigated a database of 24 patients who met the RIM criteria between January 2000 and April 2023. Genetic analysis through next-generation sequencing with a targeted gene panel was performed on 10 RIM samples. Clinical, radiological, and pathological parameters were evaluated with genetic analyses. Results: The median ages for receiving radiotherapy (RT) and RIM diagnosis were 8.0 and 27.5 years, respectively, with an interval of 17.5 years between RT and RIM diagnosis. RIMs tended to develop in non-skull bases and multifocal locations. Most primary pathologies included germ cell tumors and medulloblastoma. The tumor growth rate was 3.83 cm 3 per year, and the median doubling time was 0.8 years. All patients underwent surgical resection of RIMs. The histological grade of RIMs was World Health Organization grade 1 (64%) or 2 (36%). RIMs showed higher incidences in young-age (63%), high-dose (75%), and extendedfield (79%) RT groups. The recurrence rate was 21%. Genetic analysis revealed NF2 one copy loss in 90% of the patients, with truncating NF2 mutations and additional copy number aberrations in grade 2 RIMs. TERT promoter mutation and CDKN2A/B deletion were not identified. Notably, loss of H3K27me3 was identified in 26% of RIMs. H3K27me3 loss was associated with a higher prevalence of grade 2 RIMs (67%) and high recurrence rates (33%). Conclusion The study reveals a higher prevalence of high-grade tumors among RIMs with more rapid growth and higher recurrences than SMs. Genetically, RIMs are primarily associated with NF-2 alterations with chromosomal abnormalities in grade 2 tumors, along with a higher proportion of H3K27me3 loss.

Background: While the clinical course of radiation-induced meningioma (RIM) is considered to be more aggressive than that of sporadic meningioma (SM), the genetic predisposition for RIM is not established well. The present study aimed to analyze the clinical and genetic characteristics of RIMs to increase understanding of the tumorigenesis and prognosis of RIMs. Methods: We investigated a database of 24 patients who met the RIM criteria between January 2000 and April 2023. Genetic analysis through next-generation sequencing with a targeted gene panel was performed on 10 RIM samples. Clinical, radiological, and pathological parameters were evaluated with genetic analyses. Results: The median ages for receiving radiotherapy (RT) and RIM diagnosis were 8.0 and 27.5 years, respectively, with an interval of 17.5 years between RT and RIM diagnosis. RIMs tended to develop in non-skull bases and multifocal locations. Most primary pathologies included germ cell tumors and medulloblastoma. The tumor growth rate was 3.83 cm 3 per year, and the median doubling time was 0.8 years. All patients underwent surgical resection of RIMs. The histological grade of RIMs was World Health Organization grade 1 (64%) or 2 (36%). RIMs showed higher incidences in young-age (63%), high-dose (75%), and extendedfield (79%) RT groups. The recurrence rate was 21%. Genetic analysis revealed NF2 one copy loss in 90% of the patients, with truncating NF2 mutations and additional copy number aberrations in grade 2 RIMs. TERT promoter mutation and CDKN2A/B deletion were not identified. Notably, loss of H3K27me3 was identified in 26% of RIMs. H3K27me3 loss was associated with a higher prevalence of grade 2 RIMs (67%) and high recurrence rates (33%). Conclusion The study reveals a higher prevalence of high-grade tumors among RIMs with more rapid growth and higher recurrences than SMs. Genetically, RIMs are primarily associated with NF-2 alterations with chromosomal abnormalities in grade 2 tumors, along with a higher proportion of H3K27me3 loss.

Background: While the clinical course of radiation-induced meningioma (RIM) is considered to be more aggressive than that of sporadic meningioma (SM), the genetic predisposition for RIM is not established well. The present study aimed to analyze the clinical and genetic characteristics of RIMs to increase understanding of the tumorigenesis and prognosis of RIMs. Methods: We investigated a database of 24 patients who met the RIM criteria between January 2000 and April 2023. Genetic analysis through next-generation sequencing with a targeted gene panel was performed on 10 RIM samples. Clinical, radiological, and pathological parameters were evaluated with genetic analyses. Results: The median ages for receiving radiotherapy (RT) and RIM diagnosis were 8.0 and 27.5 years, respectively, with an interval of 17.5 years between RT and RIM diagnosis. RIMs tended to develop in non-skull bases and multifocal locations. Most primary pathologies included germ cell tumors and medulloblastoma. The tumor growth rate was 3.83 cm 3 per year, and the median doubling time was 0.8 years. All patients underwent surgical resection of RIMs. The histological grade of RIMs was World Health Organization grade 1 (64%) or 2 (36%). RIMs showed higher incidences in young-age (63%), high-dose (75%), and extendedfield (79%) RT groups. The recurrence rate was 21%. Genetic analysis revealed NF2 one copy loss in 90% of the patients, with truncating NF2 mutations and additional copy number aberrations in grade 2 RIMs. TERT promoter mutation and CDKN2A/B deletion were not identified. Notably, loss of H3K27me3 was identified in 26% of RIMs. H3K27me3 loss was associated with a higher prevalence of grade 2 RIMs (67%) and high recurrence rates (33%). Conclusion The study reveals a higher prevalence of high-grade tumors among RIMs with more rapid growth and higher recurrences than SMs. Genetically, RIMs are primarily associated with NF-2 alterations with chromosomal abnormalities in grade 2 tumors, along with a higher proportion of H3K27me3 loss.

PURPOSE: Regulatory T (Treg) cells are key modulators in the immune system. Recent studies have shown that atopic dermatitis (AD) patients have higher numbers of Treg cells; however, little is known about the specific phenotype and function of Treg cells in AD. MATERIALS AND METHODS: To identify differentially expressed proteins in peripheral induced Treg cells in AD and naturally derived Treg cells in normal controls, CD4?CD25? Treg cells were isolated from thymus tissue of normal mice and the spleens of AD mice. Membrane proteins were extracted, and quantitative proteomics labeling with Tandem Mass Tags (TMT) was performed, followed by one-dimensional liquid chromatography/tandem mass spectrometry analysis. RESULTS: Using TMT labeling, we identified 510 proteins, including 63 membrane proteins and 16 plasma membrane proteins. CD47 was one of the upregulated proteins in Treg cells in AD spleens. Although CD47 was expressed in all CD4? and CD8? T cells, a significantly higher expression of CD47 was observed in the Treg cells of AD mice and AD patients than in those of normal mice and healthy controls. Furthermore, Treg cells from the spleen showed a significantly higher expression of CD47 than those from the thymus. CONCLUSION: We found that CD47 is highly expressed in the Treg cells of AD mice, particularly in the spleen. Based on our results, we propose that CD47(high) Treg cells are likely induced Treg cells and that upregulated CD47 in the Treg cells of AD patients may play a role in the increased population of Treg cells in AD.
Animals ; Cell Membrane ; Dermatitis, Atopic* ; Humans ; Immune System ; Mass Spectrometry ; Membrane Proteins ; Mice ; Phenotype ; Proteomics ; Spleen ; T-Lymphocytes ; T-Lymphocytes, Regulatory* ; Thymus Gland ; Up-Regulation*

PURPOSE: Regulatory T (Treg) cells are key modulators in the immune system. Recent studies have shown that atopic dermatitis (AD) patients have higher numbers of Treg cells; however, little is known about the specific phenotype and function of Treg cells in AD. MATERIALS AND METHODS: To identify differentially expressed proteins in peripheral induced Treg cells in AD and naturally derived Treg cells in normal controls, CD4?CD25? Treg cells were isolated from thymus tissue of normal mice and the spleens of AD mice. Membrane proteins were extracted, and quantitative proteomics labeling with Tandem Mass Tags (TMT) was performed, followed by one-dimensional liquid chromatography/tandem mass spectrometry analysis. RESULTS: Using TMT labeling, we identified 510 proteins, including 63 membrane proteins and 16 plasma membrane proteins. CD47 was one of the upregulated proteins in Treg cells in AD spleens. Although CD47 was expressed in all CD4? and CD8? T cells, a significantly higher expression of CD47 was observed in the Treg cells of AD mice and AD patients than in those of normal mice and healthy controls. Furthermore, Treg cells from the spleen showed a significantly higher expression of CD47 than those from the thymus. CONCLUSION: We found that CD47 is highly expressed in the Treg cells of AD mice, particularly in the spleen. Based on our results, we propose that CD47(high) Treg cells are likely induced Treg cells and that upregulated CD47 in the Treg cells of AD patients may play a role in the increased population of Treg cells in AD.
Animals ; Cell Membrane ; Dermatitis, Atopic* ; Humans ; Immune System ; Mass Spectrometry ; Membrane Proteins ; Mice ; Phenotype ; Proteomics ; Spleen ; T-Lymphocytes ; T-Lymphocytes, Regulatory* ; Thymus Gland ; Up-Regulation*

BACKGROUND: S-methylmethionine sulfonium chloride was originally called vitamin U because of its inhibition of ulceration in the digestive system. Vitamin U is ubiquitously expressed in the tissues of flowering plants, and while there have been reports on its hypolipidemic effect, its precise function remains unknown. OBJECTIVE: This study was designed to evaluate the anti-obesity effect of vitamin U in 3T3-L1 pre-adipocyte cell lines. METHODS: We cultured the pre-adipocyte cell line 3T3L1 to overconfluency and then added fat differentiation-inducing media (dexamethasone, IBMX [isobutylmethylxanthine], insulin, indomethacin) and different concentrations (10, 50, 70, 90, 100 mM) of vitamin U. Then, we evaluated changes in the levels of triglycerides (TGs), glycerol-3-phosphate dehydrogenase (G3PDH), AMP-activated protein kinase (AMPK), adipocyte-specific markers (peroxisome proliferator-activated receptor gamma [PPAR-gamma], CCAAT/enhancer-binding protein alpha [C/EBP-alpha], adipocyte differentiation and determination factor 1 [ADD-1], adipsin, fatty acid synthase, lipoprotein lipase) and apoptosis-related signals (Bcl-2, Bax). RESULTS: There was a gradual decrease in the level of TGs, C/EBP-alpha, PPAR-gamma, adipsin, ADD-1 and GPDH activity with increasing concentrations of vitamin U. In contrast, we observed a significant increase in AMPK activity with increasing levels of vitamin U. The decrease in bcl-2 and increase in Bax observed with increasing concentrations of vitamin U in the media were not statistically significant. CONCLUSION: This study suggests that vitamin U inhibits adipocyte differentiation via down-regulation of adipogenic factors and up-regulation of AMPK activity.
1-Methyl-3-isobutylxanthine ; Adipocytes ; AMP-Activated Protein Kinases ; Cell Line ; Complement Factor D ; Digestive System ; Down-Regulation ; Fatty Acid Synthetase Complex ; Flowers ; Glycerolphosphate Dehydrogenase ; Insulin ; Lipoproteins ; Triglycerides ; Ulcer ; Up-Regulation ; Vitamin U ; Vitamins

Anomalies of the fetal venous system are rare. Major portion of fetal venous anomalies are malformation of umbilical vein and ductus venosus. Abnormal umbilico-systemic shunt, bypassing the ductus venosus makes direct connection between the high-pressure umbilical system and the low-pressure systemic system. And it makes adverse to the fetal hemodynamics. Fetal hemodynamic distress may induce fetal growth retardation, hepatomegaly, cardiomegaly, hydrops fetalis and fetal death. We report a case of non-immune hydrops fetalis which was associated with abnormal umbilical vein pathway. Our patient had bifurcated umbilical veins. Main branch of umbilical vein was drained directly to the left internal iliac vein and another branch was drained to the portal vein. After birth, extrahepatic shunt through main branch of umbilical vein that bypassed the portal system was persisted and thrombocytopenia was combined due to consumption in thrombus of a dilated anomalous umbilical vein. Later this case was diagnosed as Noonan syndrome with a genetic testing.
Cardiomegaly ; Fetal Death ; Fetal Growth Retardation ; Fetus ; Genetic Testing ; Hemodynamics ; Hepatomegaly ; Humans ; Hydrops Fetalis* ; Iliac Vein ; Noonan Syndrome* ; Parturition ; Portal System ; Portal Vein ; Thrombocytopenia ; Thrombosis ; Umbilical Veins ; Vascular Malformations

PURPOSE: To evaluate the causes of nil per os (NPO) before reaching full enteral feeding and compare the clinical outcomes of extremely low birth weight infant (ELBWI) by NPO duration. METHODS: We retrospectively reviewed the medical records of 92 ELBWI who were born and admitted to Neonatal intensive care unit (NICU) of Seoul National University Children's Hospital from January 2009 to December 2011. We analyzed the perinatal factors and causes of NPO. To compare neurodevelopmental outcomes and growth, we used K-ASQ (Korean ages & stages questionnaires) and growth Z-score. RESULTS: There were total 163 fasting episodes before reaching full enteral feeding. Mean NPO time was 6.7+/-5.6 days and mean frequency of NPO was 1.8 episodes. Most common cause of NPO was the medication for patent ductus arteriosus (PDA) closure (47.5%) and the next was the feeding intolerance (25.3%). Longer NPO group (more than 7 days) showed longer time to full enteral feeding and hospital day. Incidence of necrotizing enterocolitis was significantly higher in the longer NPO group. But there was no difference between two groups in the incidence of sepsis, cholestasis, and osteopenia. Changes in height Z-score from birth to postmenstrual age 35 weeks were significantly higher in the longer NPO group. In longer NPO group, catch-up of weight Z-score at CA 8 months was poor. And number of patients with score under cutoff level in K-ASQ was higher. CONCLUSION: NPO duration seems to be related with long term growth and neurodevelopment. Effort to minimize fasting time is needed by keeping enteral feeding during PDA medication and active management for feeding intolerance.
Bone Diseases, Metabolic ; Cholestasis ; Ductus Arteriosus, Patent ; Enteral Nutrition* ; Enterocolitis, Necrotizing ; Fasting ; Humans ; Incidence ; Infant* ; Infant, Extremely Low Birth Weight ; Infant, Low Birth Weight* ; Infant, Newborn ; Intensive Care, Neonatal ; Medical Records ; Parturition ; Retrospective Studies ; Seoul ; Sepsis