Background: Worldwide, sepsis is the leading cause of death in hospitals. If mortality rates in patients with sepsis can be predicted early, medical resources can be allocated efficiently. We constructed machine learning (ML) models to predict the mortality of patients with sepsis in a hospital emergency department. Methods: This study prospectively collected nationwide data from an ongoing multicenter cohort of patients with sepsis identified in the emergency department. Patients were enrolled from 19 hospitals between September 2019 and December 2020. For acquired data from 3,657 survivors and 1,455 deaths, six ML models (logistic regression, support vector machine, random forest, extreme gradient boosting [XGBoost], light gradient boosting machine, and categorical boosting [CatBoost]) were constructed using fivefold cross-validation to predict mortality. Through these models, 44 clinical variables measured on the day of admission were compared with six sequential organ failure assessment (SOFA) components (PaO 2 /FIO 2 [PF], platelets (PLT), bilirubin, cardiovascular, Glasgow Coma Scale score, and creatinine).The confidence interval (CI) was obtained by performing 10,000 repeated measurements via random sampling of the test dataset. All results were explained and interpreted using Shapley’s additive explanations (SHAP). Results: Of the 5,112 participants, CatBoost exhibited the highest area under the curve (AUC) of 0.800 (95% CI, 0.756–0.840) using clinical variables. Using the SOFA components for the same patient, XGBoost exhibited the highest AUC of 0.678 (95% CI, 0.626–0.730). As interpreted by SHAP, albumin, lactate, blood urea nitrogen, and international normalization ratio were determined to significantly affect the results. Additionally, PF and PLTs in the SOFA component significantly influenced the prediction results. Conclusion Newly established ML-based models achieved good prediction of mortality in patients with sepsis. Using several clinical variables acquired at the baseline can provide more accurate results for early predictions than using SOFA components. Additionally, the impact of each variable was identified.

This report presents the latest statistics on the stroke population in South Korea, sourced from the Clinical Research Collaborations for Stroke in Korea-National Institute for Health (CRCS-K-NIH), a comprehensive, nationwide, multicenter stroke registry. The Korean cohort, unlike western populations, shows a male-to-female ratio of 1.5, attributed to lower risk factors in Korean women. The average ages for men and women are 67 and 73 years, respectively.Hypertension is the most common risk factor (67%), consistent with global trends, but there is a higher prevalence of diabetes (35%) and smoking (21%). The prevalence of atrial fibrillation (19%) is lower than in western populations, suggesting effective prevention strategies in the general population. A high incidence of large artery atherosclerosis (38%) is observed, likely due to prevalent intracranial arterial disease in East Asians and advanced imaging techniques.There has been a decrease in intravenous thrombolysis rates, from 12% in 2017–2019 to 10% in 2021, with no improvements in door-to-needle and door-to-puncture times, worsened by the coronavirus disease 2019 pandemic. While the use of aspirin plus clopidogrel for noncardioembolic stroke and direct oral anticoagulants for atrial fibrillation is well-established, the application of direct oral anticoagulants for non-atrial fibrillation cardioembolic strokes in the acute phase requires further research. The incidence of early neurological deterioration (13%) and the cumulative incidence of recurrent stroke at 3 months (3%) align with global figures. Favorable outcomes at 3 months (63%) are comparable internationally, yet the lack of improvement in dependency at 3 months highlights the need for advancements in acute stroke care.

Background: Neuroinflammation plays an important role in cognitive decline and memory impairment in neurodegenerative disorders. Previously, we demonstrated that Humulus japonicus (HJ) has anti-inflammatory effects in rodent models of Alzheimer’s disease and Parkinson’s disease. The present study aimed to examine the protective potential of HJ extracts against lipopolysaccharide (LPS)-induced cognitive impairment and scopolamine-induced amnesia in mouse models. Cognitive improvement of mice was investigated by novel object recognition test. For analyzing effects on neuroinflammation, immunohistochemistry and quantitative real-time polymerase chain reaction (qRTPCR) assays were performed. Results: We found that the oral administration of HJ significantly improved cognitive dysfunction induced by LPS in a novel object recognition test. The LPS-induced activation of microglia was notably decreased by HJ treatment in the cortex and hippocampus. HJ administration with LPS also significantly increased the mRNA expression of interleukin (IL)-10 and decreased the mRNA expression of IL-12 in the parietal cortex of mice. The increased expression of LPS-induced complement C1q B chain (C1bq) and triggering receptor expressed on myeloid cells 2 (Trem2) genes was significantly suppressed by HJ treatment. In addition, HJ administration significantly improved novel object recognition in a scopolamine-induced amnesia mouse model. Conclusions These findings revealed that HJ has a beneficial effect on cognitive impairment and neuroinflammation induced by systemic inflammation and on amnesia induced by scopolamine in mice.

BACKGROUND/AIMS: Non-alcoholic fatty liver disease is associated with insulin resistance. Compound K (CK) is the final metabolite of panaxadiol ginsenosides that have been shown to exert antidiabetic effects. However, the molecular mechanism of the antidiabetic effects in the liver have not been elucidated; further, whether CK has beneficial effects in hepatosteatosis remains unclear. Therefore, we evaluated the effect of CK on hepatosteatosis as well as its mechanism in high-fat diet (HFD)-fed type 2 diabetic Otsuka Long-Evans Tokushima Fatty (OLETF) rats. METHODS: Twenty-four-week-old male OLETF rats were assigned to four groups: control (saline), CK 10 mg/kg, CK 25 mg/kg, or metformin 300 mg/kg (positive control); all treatments were administered orally for 12 weeks. RESULTS: Fasting glucose levels of the CK25 group were significantly lower than those of the control group during the 12 weeks. The results of the oral glucose tolerance test showed that both the glucose concentration after glucose loading and the fasting insulin levels of the CK25 group were significantly lower than those of the control. Hepatosteatosis was significantly improved by CK25. CK25 and metformin significantly increased the phosphorylation of hepatic adenosine monophosphate-activated protein kinase (AMPK). CK25 significantly inhibited the expression of sterol regulatory element-binding protein-1c and fatty acid synthase, while upregulating that of peroxisome proliferator-activated receptor-α and carnitine palmitoyltransferase-1. CONCLUSIONS: CK improved glucose intolerance and hepatosteatosis in HFD-fed OLETF rats through AMPK activation, which has dual mode of action that involves decreasing the synthesis of fatty acids and increasing fatty acid oxidation.
Adenosine ; AMP-Activated Protein Kinases ; Animals ; Carnitine ; Diabetes Mellitus, Type 2 ; Diet, High-Fat ; Fasting ; Fatty Acids ; Ginsenosides ; Glucose Intolerance* ; Glucose Tolerance Test ; Glucose* ; Humans ; Insulin ; Insulin Resistance ; Liver ; Male ; Metformin ; Non-alcoholic Fatty Liver Disease ; Peroxisomes ; Phosphorylation ; Protein Kinases ; Rats ; Rats, Inbred OLETF*

OBJECTIVES: The purpose of this study was to establish a basis for improving or strengthening the preventive strategy against scrub typhus in Korea by comparing and analyzing the difference of prevention behaviors contributing to the occurrence of scrub typhus in Japan and Korea. METHODS: The survey was carried out in Jeollabuk-do, which is a high risk and high incidence area, and Fukuoka Prefecture, which is a high risk and low incidence area. The study included 406 Korean farmers and 216 Japanese farmers. Data were collected through face-to-face surveys by interviewers who had completed standardized education. RESULTS: Korean farmers have a higher percentage of agricultural working posture that involved contact with weeds than Japanese farmers (p < 0.05). The frequency and proportion of weeding were lower in Korean farmers than in Japanese farmers (p < 0.05). The level of knowledge about scrub typhus was significantly higher among Korean farmers than among Japanese farmers (p < 0.05). Mostly, the behavior of agriculture work was more appropriate for Japanese farmers than for Korean farmers (p < 0.05). The total average level of agricultural work was lower in Korea than in Japan, lower in men than women, and lower in part-time farmers than full-time farmers (p < 0.05). CONCLUSIONS: This study suggests that it is reasonable to develop and provide a program that can improve the level of preventive behavior taking into consideration the characteristics of the subject in order to reduce the incidence of diseases in high-risk areas for scrub typhus.
Agriculture ; Asian Continental Ancestry Group ; Education ; Farmers ; Female ; Humans ; Incidence* ; Japan* ; Jeollabuk-do ; Korea* ; Male ; Posture ; Scrub Typhus*

OBJECTIVES: The purpose of this study was to establish a basis for improving or strengthening the preventive strategy against scrub typhus in Korea by comparing and analyzing the difference of prevention behaviors contributing to the occurrence of scrub typhus in Japan and Korea.METHODS: The survey was carried out in Jeollabuk-do, which is a high risk and high incidence area, and Fukuoka Prefecture, which is a high risk and low incidence area. The study included 406 Korean farmers and 216 Japanese farmers. Data were collected through face-to-face surveys by interviewers who had completed standardized education.RESULTS: Korean farmers have a higher percentage of agricultural working posture that involved contact with weeds than Japanese farmers (p < 0.05). The frequency and proportion of weeding were lower in Korean farmers than in Japanese farmers (p < 0.05). The level of knowledge about scrub typhus was significantly higher among Korean farmers than among Japanese farmers (p < 0.05). Mostly, the behavior of agriculture work was more appropriate for Japanese farmers than for Korean farmers (p < 0.05). The total average level of agricultural work was lower in Korea than in Japan, lower in men than women, and lower in part-time farmers than full-time farmers (p < 0.05).CONCLUSIONS: This study suggests that it is reasonable to develop and provide a program that can improve the level of preventive behavior taking into consideration the characteristics of the subject in order to reduce the incidence of diseases in high-risk areas for scrub typhus.
Agriculture ; Asian Continental Ancestry Group ; Education ; Farmers ; Female ; Humans ; Incidence ; Japan ; Jeollabuk-do ; Korea ; Male ; Posture ; Scrub Typhus

No abstract available.
Crohn Disease/*drug therapy/*metabolism ; Female ; Forkhead Transcription Factors/*metabolism ; Gastrointestinal Agents/*therapeutic use ; Humans ; Infliximab/*therapeutic use ; Leukocytes, Mononuclear/*metabolism ; Male ; Membrane Proteins/*metabolism ; beta-Defensins/*metabolism

BACKGROUND/AIMS: The aim of this study was to investigate the role of psychosocial problems and their associations with rotating shift work in the development of functional gastrointestinal disorders. METHODS: In this cross-sectional observation study, survey was administered to nurses and nurse assistants in a referral hospital. In addition to demographic questions, subjects were asked to complete the Rome III Questionnaire, Pittsburgh Sleep Quality Index and Rome III Psychosocial Alarm Questionnaire. RESULTS: Responses from 301 subjects were assessed. The overall prevalence of irritable bowel syndrome (IBS) and functional dyspepsia (FD) were 15.0% and 19.6%, respectively. Psychosocial alarms were prevalent in the nursing personnel (74.8% with alarm presence and 23.3% with serious condition) and were more frequent among rotating shift workers (84.7% vs. 74.5% for alarm presence and 28.1% vs. 13.3% for serious condition). The prevalence of both IBS and FD significantly increased with psychosocial risk. An independent risk factor for IBS was serious psychosocial alarm (adjusted odds ratio [aOR], 10.75; 95% confidence interval (CI), 1.30-88.99; P = 0.028). Serious psychosocial alarm was an independent risk factor for FD (aOR, 7.84; 95% CI, 1.98-31.02; P = 0.003). Marriage (aOR 0.30; 95% CI, 0.09-0.93; P = 0.037) was associated with the decreased risk of FD. CONCLUSIONS: The high prevalence of psychosocial stress among nurses who work rotating shifts is associated with the development of functional gastrointestinal disorders.
Appointments and Schedules* ; Dyspepsia ; Gastrointestinal Diseases* ; Irritable Bowel Syndrome ; Marriage ; Nursing ; Odds Ratio ; Prevalence ; Surveys and Questionnaires ; Referral and Consultation ; Risk Factors

BACKGROUND/AIMS: Hyperglycemia is associated with decreased 2-18[F]fluoro-2-deoxy-D-glucose (FDG) uptake by tumors assessed by positron emission tomography (PET). In this retrospective study we investigated a comparison of standardized uptake values (SUVs) in patients with primary colorectal cancers who either had diabetes mellitus (DM) or were otherwise healthy. METHODS: The medical records of 397 patients who were diagnosed with colorectal cancer and underwent PET-CT between January 2006 and December 2012 were analyzed. Eighty patients with DM and 317 patients without DM were included. Clinical characteristics were reviewed and maximal standardized uptake values (SUVmax) were calculated in the primary colorectal lesions. RESULTS: There was no significant difference between tumor SUVmax in DM patients (10.60+/-5.78) and those without DM (10.92+/-5.44). In addition, no significant difference was detected between tumor SUVmax in DM patients with glycated hemoglobin (HbA1c) levels <8% (10.34+/-5.17) and those with HbA1c levels > or =8% (10.61+/-7.27). The maximum size of the primary colorectal tumor was associated with SUVmax in a linear regression analysis. CONCLUSION: The results of this study showed that DM did not influence FDG uptake values in colorectal cancer patients regardless of glucose levels.
Colorectal Neoplasms* ; Diabetes Mellitus* ; Glucose ; Hemoglobin A, Glycosylated ; Humans ; Hyperglycemia ; Linear Models ; Medical Records ; Positron-Emission Tomography* ; Retrospective Studies

Thromboembolic events are rare among systemic complications of inflammatory bowel disease; however, they are a significant cause of mortality when they occur. Several reports have considered thromboembolic events in patients with ulcerative colitis presenting with venous or arterial thromboembolism, such as cerebral thrombosis, deep vein thrombosis, pulmonary thromboembolism, portal vein thrombosis, or mesenteric vein thrombosis. However, increased coagulability related to Crohn's disease is extremely rare compared with that of ulcerative colitis. We report a case of a 42-year-old man with complicated portal hypertension that occurred due to extensive portal vein and mesenteric vein thrombosis. He had a monozygotic twin brother who was also in remission with Crohn's disease. The patient showed protein C and protein S deficiencies; however, he recovered with early anticoagulation therapy.
Colitis, Ulcerative ; Crohn Disease ; Humans ; Hypertension, Portal ; Intracranial Thrombosis ; Mesenteric Veins ; Portal Vein ; Protein C ; Protein S ; Pulmonary Embolism ; Siblings ; Thromboembolism ; Thrombosis ; Twins, Monozygotic ; Venous Thromboembolism ; Venous Thrombosis