1.Association between plant-based diet and different types of obesity
ZHOU Mengyi ; SU Danting ; HE Mengjie ; XU Peiwei ; HAN Dan ; HUANG Lichun ; ZHANG Ronghua
Journal of Preventive Medicine 2025;37(8):773-778
Objective:
To investigate the association between plant-based diet and different types of obesity, so as to provide references for obesity prevention.
Methods:
Residents aged 35-75 years from 33 counties (cities, districts) in Zhejiang Province were selected as study subjects using a multistage stratified random sampling method between April and December 2024. Demographic information and living behaviors were collected using questionnaire surveys. Height, weight and waist circumference were measured, and body mass index (BMI) was calculated. BMI ≥28.0 kg/m2 was defined as obesity, waist circumference ≥90 cm in males or ≥85 cm in females was defined as central obesity, and individual with obesity who also had central obesity was defined as having compound obesity. Food intake over a 3-day period was collected using the consecutive 3-day 24-hour dietary recall method. The plant diet index (PDI), healthful plant diet index (HPDI), and unhealthful plant diet index (UPDI) were calculated, and categorized into quintiles (Q1-Q5) based on their distribution. Association between the PDI, PDI, UPDI and different types of obesity were analyzed using multivariable logistic regression models.
Results:
A total of 4 882 individuals were surveyed, including 2 233 males (45.74%) and 2 649 females (54.26%). The average age was (55.42±12.14) years. There were 537 individuals of obesity, 1 718 individuals of central obesity, and 500 individuals of compound obesity, with detection rates of 11.00%, 35.19%, and 10.24%, respectively. Multivariable logistic regression analysis showed that, after adjusting for demographic information and living behaviors, compared with Q1 group, HPDI Q5 group showed a 29.6% lower risk of obesity (OR=0.704, 95%CI: 0.525-0.943) and a 32.1% lower risk of compound obesity (OR=0.679, 95%CI: 0.502-0.918). Conversely, the UPDI Q5 group exhibited a 39.5% higher risk of obesity (OR=1.395, 95%CI: 1.032-1.886) and a 39.8% higher risk of compound obesity (OR=1.398, 95%CI: 1.025-1.907). No statistically significant association was found between PDI and obesity, central obesity, and compound obesity (all P>0.05). As HPDI increased, the risks of obesity and compound obesity showed decreasing trends; as UPDI increased, the risks of obesity and compound obesity showed increasing trends (all Ptrend<0.05).
Conclusion
A healthful plant-based diet is associated with reduced risks of obesity and compound obesity, while an unhealthful plant-based diet is associated with increased risks of obesity and compound obesity.
2.SAE1 promotes tumor cell malignancy via SUMOylation and liquid-liquid phase separation facilitated nuclear export of p27.
Ling WANG ; Jie MIN ; Jinjun QIAN ; Xiaofang HUANG ; Xichao YU ; Yuhao CAO ; Shanliang SUN ; Mengying KE ; Xinyu LV ; Wenfeng SU ; Mengjie GUO ; Nianguang LI ; Shiqian QI ; Hongming HUANG ; Chunyan GU ; Ye YANG
Acta Pharmaceutica Sinica B 2025;15(4):1991-2007
Most cancers are currently incurable, partly due to abnormal post-translational modifications (PTMs). In this study, we initially used multiple myeloma (MM) as a working model and found that SUMOylation activating enzyme subunit 1 (SAE1) promotes the malignancy of MM. Through proteome microarray analysis, SAE1 was identified as a potential target for bioactive colcemid or its derivative colchicine. Elevated levels of SAE1 were associated with poor clinical survival and increased MM proliferation in vitro and in vivo. Additionally, SAE1 directly SUMOylated and upregulated the total protein expression of p27, leading to LLPS-mediated nuclear export of p27. Our study also demonstrated the involvement of SAE1 in other types of cancer cells, and provided the first monomer crystal structure of SAE1 and its key binding model with colchicine. Colchicine also showed promising results in the Patient-Derived Tumor Xenograft (PDX) model. Furthermore, a controlled clinical trial with 56 MM patients demonstrated the clinical efficacy of colchicine. Our findings reveal a novel mechanism by which tumor cells evade p27-induced cellular growth arrest through p27 SUMOylation-mediated nuclear export. SAE1 may serve as a promising therapeutic target, and colchicine may be a potential treatment option for multiple types of cancer in clinical settings.
3.Role of HK2 and VDAC1 in Diacetylmorphine-induced Cardiomyocyte Apoptosis
Jinling XIAO ; Yaling GUAN ; Sensen ZHU ; Mengjie ZHUANG ; Liping SU ; Hongwei PU
Journal of Kunming Medical University 2024;45(2):7-13
Objective To investigate the role of HK2 and VDAC1 in diacetylmorphine-induced cardiomyocyte apoptosis.Methods A dose-escalation method was used to establish a rat model of diacetylmorphine addiction.Forty SD rats were randomly divided into three groups,the normal group(n=10)was injected with an equal amount of saline subcutaneously,the model group(n=15)was injected with 5 mg/kg of diacetylmorphine for the first time,and then the dose was increased by 2.5 mg/(kg·d)day by day for 20 days,and the group of model +10 D(n=15)continued to increase the dose based on the model group up to the 10th day.Lactate dehydrogenase(LDH)and glutamic oxaloacetic transaminase(GOT)were detected by ELISA;HE staining was used to observe the pathological changes of myocardial tissues in each group;TUNEL staining was used to detect apoptosis in myocardial tissues in each group;and immunohistochemistry,RT-q-analysis,and immunochemistry were used to detect apoptosis in myocardial tissues in each group.Immunohistochemistry,RT-qPCR and Western bl-ot were used to detect the mRNA and protein expression of HK2,VDAC1 and apoptosis-related factors.Results HE staining revealed that myocardial tissues exhibited different degrees of damage with the prolongation of diacetylmorphine intervention.Compared with the normal group,serum LDH,GOT content and myocardial apoptosis rate increased in the model group,mRNA and protein levels of HK2 and anti-apoptotic factor Bcl-2 decreased,mRNA and protein levels of VDAC1 and pro-apoptotic factors Bax and Caspase-3 increased,and the protein level of Clevead Caspase-3 increased;in the model +10 D group the above indexes,there was a statistically significant difference(P<0.05).Conclusion Diacetylmorphine can cause cardiomyocyte apoptosis,and VDAC1 may be involved in the process of cardiomyocyte apoptosis caused by diacetylmorphine.
4.Analysis of current status and related factors of breakfast among primary and secondary school students in Zhejiang Province
ZHAO Dong, SU Danting, ZOU Yan, HUANG Lichun, HE Mengjie, HAN Dan, GU Wei, ZHANG Ronghua
Chinese Journal of School Health 2024;45(9):1260-1263
Objective:
To understand current status and related factors of breakfast among primary and secondary school students in Zhejiang Province, so as to provide a scientific basis for improving breakfast habits of primary and secondary school students.
Methods:
During May to November of 2023, 33 326 students from grade four to six of primary schools and grade one to two of secondary schools were selected from 90 counties and cities in Zhejiang Province by using the stratified cluster random sampling method. General information and breakfast consumption were collected by questionnaire. Multivariate Logistic regression was used to analyze the related factors of breakfast.
Results:
About 81.29% of the primary and secondary school students reported regular breakfast consumption. The rate of regular breakfast consumption was higher on the school days (92.23%) than on the weekends (85.17%), and higher in primary school students (85.83%) compared to secondary school students (74.71%), with statistically significant differences ( χ 2=827.42, 655.03, P <0.01). About 49.19% of primary and secondary school students had their breakfast within 10 minutes or less, and 83.30% of primary and secondary school students had 3-5 food groups for breakfast. The proportions of students who consumed cereals and potatoes, milk, and eggs were respectively 18.76%, 28.85%, 14.63%. About 22.84%, 28.00 %, 32.60% and 32.23% of the students had no meat, soybeans, vegetables and fruits in their breakfast. The results of multivariate Logistic regression analysis showed that girls, rural area, secondary school, place of living (dormitory, others), migrant parent (one or both outside the hometown), late bedtime (22:00-22:59, 23:00 and later) and late wake up time (9:00 and later) on the weekends were positively correlated with no having breakfast every day ( OR=1.22, 1.40, 1.46, 1.20, 1.20, 1.34, 1.36, 1.41 , 3.51, 2.32, P <0.05). The time of physical activity per day (30-<60, 60-<90, 90-120, >120 min), bedtime (21:00-21:59, 22:00-22:59) and wake up time (6:00-6:59, 7:00-7:59) on school days were negatively correlated with no having breakfast every day ( OR=0.75, 0.64, 0.67, 0.64, 0.77, 0.82, 0.75, 0.67, P <0.05).
Conclusions
There is a considerable number of primary and secondary school students with irregular breakfast consumption, which are related to multiple factors. Therefore, it is necessary to strengthen nutrition education and improve the behavior of breakfast for primary and secondary school students.
5.Acute toxicity test of the Li-Dan-He-Ji granules.
Mengjie SU ; Huan QIN ; Wei YI ; Lishan ZHOU ; Suqi YAN
Chinese Critical Care Medicine 2023;35(12):1316-1320
OBJECTIVE:
To observe the acute toxic reaction of the Li-Dan-He-Ji granules, and to evaluate its safety.
METHODS:
Sixty C57BL6/J mice were randomly divided into normal control group, vehicle group and drug treatment group, with 10 females and 10 males in each group. According to the Technical guidelines for the study of toxicity of single drug administration, the maximum administration dosage (MAD) was used to intragastric administration of Li-Dan-He-Ji granules 0.04 mL/g (42.8 g/kg), three times within 24 hours, with an interval of 6 hours. The vehicle group was fed with the same pure water. The normal control group received no treatment. The mice were observed continuously for 14 days, and the appearance characteristics, behavioral activities, body weight changes and the number of deaths in each group were recorded. At the 14 days, blood samples were collected from the eyeballs, and routine blood tests such as white blood cell count (WBC), lymphocyte count (LYM), neutrophil count (NEU), lymphocyte percentage (LYM%), neutrophil percentage (NEU%), red blood cell count (RBC), hemoglobin (Hb), and platelet count (PLT) were performed. And alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), creatinine (Cr) and other biochemical indicators. The mice were then sacrificed, and the histopathological changes of liver and kidney were observed by hematoxylin-eosin (HE) staining. The organ indexes of heart, liver, spleen, lung, kidney and thymus were calculated.
RESULTS:
The median lethal dose (LD50) of Li-Dan-He-Ji granules were not obtained. During the MAD experiment, the animals in each group did not die, their behavioral activities were normal, and there was no significant change in liver and kidney histopathological examination. There were no significant differences in body weight, blood routine, biochemical indexes and organ index among all groups (all P > 0.05). The body weight (g) of normal control female and male group, vehicle female and male group and drug female and male group before administration were 18.96±1.14, 19.65±1.45, 19.33±1.30, 19.53±1.22, 19.28±1.69 and 19.48±1.28; 14 days after administration were 27.69±0.81, 28.19±2.22, 27.77±1.00, 27.88±1.85, 27.92±1.33 and 28.07±1.93, respectively.
CONCLUSIONS
The Li-Dan-He-Ji granules have low oral toxicity, combined with clinical observation, can be safely used in infants.
Animals
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Female
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Humans
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Male
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Mice
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Body Weight
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Kidney
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Leukocyte Count
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Liver
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Toxicity Tests, Acute
6.Effects of Li-Dan-He-Ji on regulating oxidative stress and antagonising infantile cholestatic hepatic fibrosis.
Wei YI ; Suqi YAN ; Jianqiao TANG ; Xiang MA ; Mengjie SU ; Hong LI
Chinese Critical Care Medicine 2023;35(7):741-745
OBJECTIVE:
To explore the clinical effect of Li-Dan-He-Ji in the treatment of infantile cholestatic hepatic fibrosis.
METHODS:
Patients who met the diagnostic criteria of infantile cholestatic hepatic fibrosis in the department of integrated traditional Chinese and Western medicine and the department of gastroenterology of Wuhan Children's Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology from January to December 2021 were included in the study by prospective randomized controlled trial. They were divided into the conventional treatment group and Li-Dan-He-Ji group according to the random number table. The patients in the conventional treatment group were given conventional treatment according to the guidelines. In the Li-Dan-He-Ji group, the self-made Chinese medicinal compound Li-Dan-He-Ji (prescription: Herba Artemisiae Scopariae, Fructus Forsythiae, Radix et Rhizoma Rhei preparata, Radix Polygoni Multiflori Preparata, Radix Paeoniae Rubra, Ramulus Cinnamomi, Fructus Aurantii, Rhizoma Atractylodis Macrocephalae, Fructus Schisandrae Chinensis, Carapax Trionycis, and Radix Glycyrrhizae) was given on the basis of the routine treatment, by oral, enema or nasal feeding, 60 mL each day, divided into 2 or 3 times, for 28 days. Outpatient follow-up was maintained for 4 weeks. Before and after treatment, serum liver fibrosis 4 items [type IV collagen (IV-C), hyaluronidase (HA), type III procollagen (PC III), laminin (LN)], liver function and cholestasis-related markers [total bilirubin (TBil), direct bilirubin (DBil), total bile acid (TBA), alkaline phosphatase (ALP), γ-glutamyl transpeptidase (γ-GGT), alanine aminotransferase (ALT), aspartate aminotransferase (AST)], oxidative stress markers [superoxide dismutase (SOD), malondialdehyde (MDA), and glutathione (GSH)], liver stiffness measurement (LSM) detected by transient elastography (TE), aspartate aminotransferase-to-platelet ratio index (APRI), and liver and spleen retraction time were recorded in the two groups.
RESULTS:
During the observation period, a total of 40 cases of cholestatic hepatic fibrosis were treated, including 21 cases in the conventional treatment group and 19 cases in the Li-Dan-He-Ji group. Before treatment, the differences in serum liver fibrosis 4 items, serum liver function and cholestasis-related markers, oxidative stress indexes, LSM and APRI of the two groups were not statistically significant. After treatment, the liver fibrosis 4 items, liver function and cholestasis-related markers, LSM, and APRI were all significantly decreased in both groups, and the indexes in the Li-Dan-He-Ji group were significantly lower than those in the conventional treatment group [HA (ng/L): 165.81±21.57 vs. 203.87±25.88, PC III (μg/L): 69.86±9.32 vs. 81.82±7.39, IV-C (μg/L): 204.14±38.97 vs. 239.08±24.93, LN (μg/L): 162.40±17.39 vs. 190.86±15.97, TBil (μmol/L): 37.58±27.63 vs. 53.06±45.09, DBil (μmol/L): 20.55±19.34 vs. 30.08±27.39, ALP (U/L): 436.50±217.58 vs. 469.60±291.69, γ-GGT (U/L): 66.78±35.84 vs. 87.00±32.82, ALT (U/L): 64.75±50.53 vs. 75.20±50.19, AST (U/L): 77.25±54.23 vs. 96.80±59.77, TBA (μmol/L): 74.35±44.44 vs. 85.45±39.50, LSM (kPa): 5.24±0.39 vs. 7.53±3.16, APRI: 0.52±0.39 vs. 0.98±0.29, all P < 0.05]. After treatment, MDA in the two groups were significantly lower than those before treatment, and SOD and GSH were significantly higher than those before treatment. The level of SOD in the Li-Dan-He-Ji group was significantly higher than that in the conventional treatment group (kU/L: 64.56±6.69 vs. 51.58±5.98, P < 0.05). In addition, the liver retraction time (day: 20.13±10.97 vs. 24.33±13.46) and spleen retraction time (day: 25.93±13.01 vs. 29.14±14.52) in the Li-Dan-He-Ji group were significantly shorter than those in the conventional treatment group (both P < 0.05).
CONCLUSIONS
The use of Li-Dan-He-Ji in the treatment of cholestatic hepatic fibrosis can effectively improve the indicators of cholestasis, hepatic fibrosis, oxidative stress and clinical symptoms in children.
Child
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Humans
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Prospective Studies
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Cholestasis/pathology*
;
Liver
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Liver Cirrhosis/drug therapy*
;
Bilirubin/pharmacology*
;
Oxidative Stress
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Aspartate Aminotransferases/metabolism*
;
Superoxide Dismutase/metabolism*
7.Comparing the clinical characteristics and prognosis of seropositive and seronegative rheumatoid arthritis patients in China: a real-world study
Yehua JIN ; Ting JIANG ; Xiaolei FAN ; Rongsheng WANG ; Yuanyuan ZHANG ; Peng CHENG ; Yingying QIN ; Mengjie HONG ; Mengru GUO ; Qingqing CHENG ; Zhaoyi LIU ; Runrun ZHANG ; Cen CHANG ; Lingxia XU ; Linshuai XU ; Ying GU ; Chunrong HU ; Xiao SU ; Luan XUE ; Yongfei FANG ; Li SU ; Mingli GAO ; Jiangyun PENG ; Qianghua WEI ; Jie SHEN ; Qi ZHU ; Hongxia LIU ; Dongyi HE
Chinese Journal of Rheumatology 2021;25(5):307-315
Objective:In general, patients with seropositive rheumatoid arthritis (RA) are considered to show an aggressive disease course. However, the relationship between the two subgroups in disease severity is controversial. Our study is aimed to compare the clinical characteristics and prognosis of double-seropositive and seronegative RA in China through a real-world large scale study.Methods:RA patients who met the 1987 American College of Rheumatology (ACR) classification criteria or the 2010 ACR/European Anti-Rheumatism Alliance RA classification criteria, and who attended the 10 hospitals across the country from September 2015 to January 2020, were enrolled. According to the serological status, patients were divided into 4 subgroups [rheumatoid factor (RF)(-) anti-cyclic citrullinated peptide (CCP) antibody (-), RF(+), RF(+) anti-CCP antibody(+), anti-CCP antibody(+)] and compared the disease characteristics and treatment response. One-way analysis of variance was used for measurement data that conformed to normal distribution, Kruskal-Wallis H test was used for measurement data that did not conform to normal distribution; paired t test was used for comparison before and after treatment within the group if the data was normally distributed else paired rank sum test was used; χ2 test was used for count data. Results:① A total of 2 461 patients were included, including 1 813 RF(+) anti-CCP antibody(+) patients (73.67%), 129 RF(+) patients (5.24%), 245 RF(-) anti-CCP antibody(-) patients (9.96%), 74 anti-CCP antibody(+) patients (11.13%). ② Regardless of the CCP status, RF(+) patients had an early age of onset [RF(-) anti-CCP antibody(-) (51±14) years old, anti-CCP antibody(+) (50±15) years old, RF(+) anti-CCP antibody(+) (48±14) years old, RF(+)(48±13) years old, F=3.003, P=0.029], longer disease duration [RF(-) anti-CCP antibody(-) 50 (20, 126) months, anti-CCP antibody(+) 60(24, 150) months, RF(+) anti-CCP antibody(+) 89(35, 179) months, RF(+) 83(25, 160) months, H=22.001, P<0.01], more joint swelling counts (SJC) [RF(-) anti-CCP antibody(-) 2(0, 6), Anti-CCP antibody(+) 2(0, 5), RF(+) anti-CCP antibody(+) 2(0, 7), RF(+) 2(0, 6), H=8.939, P=0.03] and tender joint counts (TJC) [RF(-) anti-CCP antibody(-) 3(0, 8), anti-CCP antibody(+) 2(0, 6), RF(+) anti-CCP antibody(+) 3(1, 9), RF(+) 2(0, 8), H=11.341, P=0.01] and the morning stiff time was longer [RF(-) anti-CCP antibody(-) 30(0, 60) min, anti-CCP antibody(+) 20(0, 60) min, RF(+) anti-CCP antibody(+) 30(10, 60) min, RF(+) 30(10, 60) min, H=13.32, P<0.01]; ESR [RF(-) anti-CCP antibody(-) 17(9, 38) mm/1 h, anti-CCP antibody(+) 20(10, 35) mm/1 h, RF(+) anti-CCP antibody(+) 26(14, 45) mm/1 h, RF(+) 28(14, 50) mm/1 h, H=37.084, P<0.01] and CRP [RF(-) anti-CCP antibody(-) 2.3 (0.8, 15.9) mm/L, Anti-CCP antibody(+) 2.7(0.7, 12.1) mm/L, RF(+) anti-CCP antibody(+) 5.2(1.3, 17.2) mm/L, RF (+) 5.2(0.9, 16.2) mm/L, H=22.141, P<0.01] of the RF(+)patients were significantly higher than RF(-) patients, and RF(+) patients had higher disease severity(DAS28-ESR) [RF(-) anti-CCP antibody(-) (4.0±1.8), anti-CCP antibody(+) (3.8±1.6), RF(+) anti-CCP antibody(+) (4.3±1.8), RF(+) (4.1±1.7), F=7.269, P<0.01]. ③ The RF(+) anti-CCP antibody(+) patients were divided into 4 subgroups, and it was found that RF-H anti-CCP antibody-L patients had higher disease severity [RF-H anti-CCP antibody-H 4.3(2.9, 5.6), RF-L anti-CCP antibody-L 4.5(3.0, 5.7), RF-H anti-CCP antibody-L 4.9(3.1, 6.2), RF-L anti-CCP antibody-H 2.8(1.8, 3.9), H=20.374, P<0.01]. ④ After 3-month follow up, the clinical characteristics of the four groups were improved, but there was no significant difference in the improvement of the four groups, indicating that the RF and anti-CCP antibody status did not affect the remission within 3 months. Conclusion:Among RA patients, the disease activity of RA patients is closely related to RF and the RF(+) patients have more severe disease than RF(-) patients. Patients with higher RF titer also have more severe disease than that of patients with low RF titer. After 3 months of medication treatment, the antibody status does not affect the disease remission rate.
8.Lunch supply in public primary school canteens in Zhejiang Province
Chinese Journal of School Health 2021;42(8):1152-1155
Objective:
To investigate lunch supply of public primary school canteens in Zhejiang Province, and to provide a basis for the scientific guidance of school lunch.
Methods:
During May to Jun. and Sept. to Oct. in 2019, lunch food supply was weighed and recorded and the number of diners in 44 public primary school canteens were summarized. Each investigation lasted for one week.
Results:
Food was mainly based on the taste of the students (40.91%) in the school canteen. About 45.45% of the schools referred to the Nutrition Guidelines of School Meals for students meals when making recipes in the school canteen. The supplies of cereals, vegetables, fruits, livestock and poultry meat, fish and shrimp, eggs, milk, soybean nuts, vegetable oil and salt were 109.05, 118.01, 0, 63.96, 9.25, 11.31, 0, 10.68, 10.47, 2.54 g. The supply of vegetable oil was basically the same as the recommended amount ( P >0.05). The supplies of energy, protein, calcium, iron, zinc, vitamin A, vitamin B 1, vitamin B 2, vitamin C, dietary fiber were 820.84 kcal, 32.79 g, 164.18 mg, 7.84 mg, 4.71 mg, 23.07 μgRAE, 0.41 mg, 0.35 mg, 20.47 mg, 2.34 g, 37.56% of energy from fat and 48.47% of energy from carbohydrate. The supply of vitamin B 1 was basically the same as the recommended amount ( P >0.05). There were no significant differences in all kinds of food and nutrients between urban and rural primary schools ( P >0.05).
Conclusion
Lunch supply is not optimistic in public primary school canteens in Zhejiang Province, with unreasonable structure and fails to agree with current nutritional recommendations. It is suggested that the scientific guidance of students meals should be carried out according to the survey results combined with the characteristics of local diet.
9.The value of Gd-EOB-DTPA enhanced MRI radiomics and machine learning in preoperative prediction of microvascular invasion of hepatocellular carcinoma
Yixing YU ; Ximing WANG ; Chunhong HU ; Yanfen FAN ; Mengjie HU ; Cen SHI ; Mo ZHU ; Yu ZHANG ; Su HU
Chinese Journal of Radiology 2021;55(8):853-858
Objective:To explore the value of different machine learning models based on Gd-EOB-DTPA enhanced MRI hepatobiliary phase radiomics features in preoperative prediction of microvascular invasion (MVI) of hepatocellular carcinoma (HCC).Methods:The data of 132 patients with HCC confirmed by pathology in the First Affiliated Hospital of Soochow University from January 2015 to May 2020 were retrospectively analyzed, including 72 cases of positive MVI and 60 cases of negative MVI. According to the proportion of 7∶3, the cases were randomly divided into training set and validation set. The radiomics features of hepatobiliary phase images for HCC were extracted by PyRadiomics software. The clinical and radiomics features of the training set were screened by the least absolute shrinkage and selection operator (LASSO) regression with 5 fold cross-validation, and then the optimal feature subset was obtained. Six machine learning algorithms, including decision tree, extreme gradient boosting, random forest, support vector machine (SVM), generalized linear model (GLM) and neural network, were used to build the prediction models, and the ROC curves were used to evaluate the prediction ability of the models. DeLong test was used to compare the differences of area under the curve (AUC) for 6 machine learning algorithms.Results:Totally 14 features selected by LASSO regression were obtained to form the optimal feature subset, including 2 clinical features (maximum tumor diameter and alpha-fetoprotein) and 12 radiomics features. The AUCs of decision tree, extreme gradient boosting, random forest, SVM, GLM and neural network based on the optimal feature subset were 0.969, 1.000, 1.000, 0.991, 0.966, 1.000 in the training set and 0.781, 0.890, 0.920, 0.806, 0.684, 0.703 in the validation set, respectively. There were significant differences in the AUCs between extreme gradient boosting and GLM or neural network ( Z=2.857, 3.220, P=0.004, 0.001). The differences in AUCs between random forest and SVM, GLM, or neural network were significant ( Z=2.371, 3.190, 3.967, P=0.018, 0.001,<0.001). The difference in AUCs between SVM and GLM was statistically significant ( Z=2.621 , P=0.009). There were no significant differences in the AUCs among the other machine learning models ( P>0.05). Conclusion:Machine learning models based on Gd-EOB-DTPA enhanced MRI hepatobiliary phase radiomics features can be used to preoperatively predict MVI of HCC, particularly the extreme gradient boosting and random forest models have high prediction efficiency.
10.The value of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid enhanced MRI nomogram model for predicting Ki-67 expression of hepatocellular carcinoma
Mengjie HU ; Yixing YU ; Yanfen FAN ; Ximing WANG ; Su HU ; Chunhong HU
Chinese Journal of Radiology 2020;54(12):1185-1190
Objective:To explore the value of gadolinium-ethoxybenzyl- diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) enhanced MRI nomogram model for preoperative prediction of Ki-67 expression in hepatocellular carcinoma (HCC).Methods:Data of 85 patients of HCC confirmed by postoperative pathology, who underwent preoperative Gd-EOB-DTPA enhanced MRI between September 2016 and August 2019 in the First Affiliated Hospital of Soochow University were retrospectively evaluated. According to postoperative immunohistochemistry Ki-67 index, the 85 patients were divided into Ki-67 low expression group(Ki-67 index ≤10%, n=20) and Ki-67 high expression group (Ki-67 index >10%, n=65). Clinical data (hepatitis, cirrhosis, etc.), qualitative imaging parameters (tumor margin, capsule, etc.) were compared by χ 2 test and quantitative parameters [lesion-to-normal parenchyma ratio-arterial phase (LNR-AP), lesion-to-normal parenchyma ratio-portal phase (LNR-PP), lesion-to-normal parenchyma ratio-equilibrium phase (LNR-EP) and lesion-to-normal parenchyma ratio-hepatobiliary phase (LNR-HBP)] were compared by independent sample t test. The above statistically significant parameters were included in multivariate logistic regression to identify the independent predictors of Ki-67 high expression and then the nomogram model for predicting Ki-67 expression of HCC was established. Results:alpha-fetoprotein (AFP) tumor margin, arterial rim enhancement between the Ki-67 low expression group and the Ki-67 high expression group had significant differences (χ 2 were 8.196, 10.538 and 4.717, respectively, P<0.05). LNR-AP, LNR-PP, LNR-EP and LNR-HBP between the two groups had significant differences ( t were 2.929, 2.773, 2.890 and 3.437, respectively, P<0.05).The result of multivariate logistic regression revealed that AFP≥20 μg/L, non-smooth tumor margin and low LNR-HBP were the independent predictors of Ki-67 high expression (odds ratio were 4.090, 3.509 and 0.042, respectively, P<0.05).The Gd-EOB-DTPA enhanced MRI nomogram model for predicting Ki-67 expression of HCC was established successfully. The Area under the receiver operating characteristic curve of the nomogram was 0.837 and the corrected predictive curve fitted the ideal curve, which suggested the model had a good predictive efficiency. Conclusion:Gd-EOB-DTPA enhanced MRI nomogram model has great value in preoperative prediction of Ki-67 expression of HCC, which provided a personalized prediction method for Ki-67 expression in patient with HCC.


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