Objective:To analyze the association between visceral fat area (VFA) and fatty liver based on quantitative CT (QCT) in people receiving health examination with normal body mass index (BMI).Methods:A cross-sectional study. A total of 1 305 physical examiners who underwent chest CT and QCT examination in the Department of Health Management of Henan Provincial People′s Hospital from January to December 2021 were retrospectively selected as subjects. The physical components at the central level of the lumbar two cone were measured with QCT, including subcutaneous fat area (SFA), VFA and liver fat content (LFC). And the metabolic indexes, such as blood lipids and blood glucose, were collected. The t-test and χ2 test were used to analyze the correlation between the detection rate of fatty live and LFCr and age and gender. According to level of VFA (<100 cm 2, 100-150 cm 2 and≥150 cm 2), the subjects were divided into three groups, and one-way ANOVA and χ2 test were used in comparison between groups. Multiple linear regression was used to analyze the correlation between VFA and metabolic indexes and LFC. Results:Of the 1 305 subjects, there were 634 males and 671 females. The detection rate of fatty liver in normal BMI population was 65.67%, and it was 72.71% and 59.02% respectively in men and women ( χ2=27.12, P<0.001), and the detection rate of fatty liver and LFC increased with age (both P<0.05). With the increase of VFA, the age, BMI, SFA, LFC, total cholesterol (TC), triacylglycerol (TG), low-density lipoprotein cholesterol (LDL-C), fasting blood glucose (FBG), alanine aminotransferase (ALT), blood uric acid and prevalence of fatty liver increased (all P<0.05), and the low-density lipoprotein cholesterol (HDL-C) decreased ( P<0.001). Multiple linear regression analysis showed that after adjustment for age factors, regardless of male or female, LFC was independently positively related with VFA, BMI, and ALT (male β=0.206, 0.145, 0.174, female β=0.194, 0.150, 0.184; all P<0.05). FBG was positively correlated with male independently ( β=0.134; P<0.001). The indicators related to female independently were TC, TG, and blood uric acid ( β=-0.121, 0.145, 0.141, all P<0.05) Conclusion:In the population receiving health examination with normal BMI, the VFA measured by QCT technique is closely related to fatty liver.

Objective:To analyze the correlation between body fat distribution measured by quantitative CT (QCT) and body mass index in adults receiving physical examination.Methods:It was a cross-sectional study. From January to December 2021, 3 205 adults undergoing physical examination who met the inclusion criteria and underwent chest CT and QCT examination in the health management discipline of Henan Provincial People′s Hospital were selected as the research objects. The general data were collected; and the subcutaneous fat area, visceral fat area, total abdominal fat area, liver fat content, abdominal obesity and fatty liver detection rate were measured by QCT. According to body mass index, the subjects were divided into normal group (18.5-<24.0 kg/m 2, 1 343 cases), overweight group (24.0-<28.0 kg/m 2, 1 427 cases) and obesity group (≥28.0 kg/m 2, 435 cases). One-way analysis of variance and χ2 test were used to compare the differences of QCT indexes among the three groups. Pearson and Spearman correlation analysis were used to evaluate the correlation between QCT indexes and body mass index. Receiver operating characteristic (ROC) curve was drawn to analyze the diagnostic effect of QCT on obesity and fatty liver. Results:Subcutaneous fat area, visceral fat area, total abdominal fat area, liver fat content, abdominal obesity and fatty liver detection rate in obese group were all significantly higher than those in overweight group and normal group [males, (147.60±46.44) vs (104.33±27.68), (73.46±22.65) cm 2; (297.46±54.70) vs (229.40±53.12), (159.57±49.68) cm 2; (445.06±70.24) vs (333.73±62.91), (233.02±61.87) cm 2; 11.30% (7.90%, 15.55%) vs 8.75% (6.50%, 11.70%), 6.60% (4.80%, 8.70%); 100.0% vs 96.0%, 64.0%; 92.9% vs 86.7%, 73.3%; females, (213.96±48.61) vs (155.85±35.31), (107.24±31.01) cm 2; (185.41±43.88) vs (142.48±41.75), (96.56±36.50) cm 2; (399.37±68.07) vs (298.33±56.86), (203.80±57.53) cm 2; 9.80% (6.90%, 13.30%) vs 7.30% (5.05%, 9.80%), 5.40%(3.50%, 7.20%); 96.4% vs 74.8%, 28.9%; 87.3% vs 75.6%, 56.5%], and were all positively correlated with body mass index (males, r/ rs=0.709, 0.738, 0.831, 0.402, 0.464, 0.225; females, r/ rs=0.798, 0.695, 0.841, 0.416, 0.605, 0.276) (all P<0.001). In both male and female subjects, the detection rates of obesity based on QCT were significantly higher than those based on body mass index (male, 86.9% vs 16.6%; female, 49.3% vs 8.9%), and the detection rates of fatty liver based on QCT were significantly higher than those based on ultrasound (male, 83.6% vs 57.1%; female, 65.2% vs 27.6%) (all P<0.001). ROC curve showed that when the visceral fat area of 142 cm 2 was used as the cut-off value for the diagnosis of obesity in male subjects, the sensitivity and specificity was 100% and 15.8%, respectively; and when the cut-off value of liver fat content 5.0% was used to diagnose fatty liver, the sensitivity and specificity was 88.9% and 25.1%, respectively. When the visceral fat area of 115 cm 2 was set as the cut-off value for the diagnosis of obesity in female subjects, the sensitivity and specificity was 96.4% and 55.3%, respectively; when the liver fat content of 5.0% was set as the cut-off value for the diagnosis of fatty liver, the sensitivity and specificity was 83.7% and 43.2%, respectively. Conclusions:The indexes of abdominal fat and liver fat measured by QCT in adults receiving physical examination are all positively correlated with body mass index. The effect of QCT in the diagnosis of obesity and fatty liver are both better than body mass index and ultrasound.

Objective:To analyze the distribution of body fat with quantitative computed tomography (QCT) in people with normal body mass index (BMI).Methods:A cross-sectional study was conducted in the physical examination population who underwent chest CT and QCT examination in the Department of Health Management, Henan Provincial People′s Hospital from January to December in 2021, and 1 395 physical examination subjects who met the inclusion criteria were selected as the research subjects. The subjects were divided into five groups according to their age. The general data of the subjects were collected. The total abdominal fat area (TFA), visceral fat area (VFA), subcutaneous fat area (SFA), total abdominal muscle area (TMA) and muscle fat content (MFC) in the subjects were measured by QCT. One-way analysis of variance, Welch test and Kruskal-Wallis test were used to compare the above QCT measurement indexes between the two genders among different age groups with normal BMI. Pearson correlation analysis was used to analyze the correlation between VFA and sarcopenia indexes. Multivariate linear regression was used to analyze the relationship between VFA and linear correlation variables in the related indicators of sarcopenia.Results:There were significant differences in TFA, VFA, TMA and SMI among different age groups in subjects with normal BMI (all P<0.05). Pearson correlation analysis showed that VFA was negatively correlated with TMA in some age groups (male: 18-39 years group: r=-0.351; 40-49 years group: r=-0.278; 60-69 years group: r=-0.245; female:40-49 years group: r=-0.251; 50-59 years group: r=-0.270;≥70 years group: r=-0.391; all P<0.01); it was negatively correlated with SMI (male: 18-39 years group: r=-0.352; 40-49 years group: r=-0.340; 50-59 years group: r=-0.266; 60-69 years group: r=-0.316; female: 40-49 years group: r=-0.240; 50-59 years group: r=-0.284; all P<0.001); it was positively correlated with MFC (male: 18-39 years group: r=0.342; 40-49 years group: r=0.291; female: 50-59 years group: r=0.133; 60-69 years group: r=0.284; all P<0.05). Multivariate linear regression analysis showed that VFA was independently and negatively correlated with SMI in both men and women after adjusting for age interference factors (male B=-1.881, t=-6.025, P<0.001; female B=-0.603, t=-2.887, P=0.004), and it was independently positively correlated with MFC (male B=1.230, t=4.271, P<0.001;female B=0.893, t=3.836, P<0.001). There was an independent negative correlation between VFA and TMA in male subjects ( B=0.263, t=2.478, P=0.013). Conclusions:VFA is correlated with TMA, SMI and MFC in people with normal BMI. Regardless of gender, SMI has a negative effect on VFA, and MFC has a positive effect on VFA.

Objective:To investigate the effects of personalized intermittent energy restriction (IER) diet on sleep related gut microbiome in obese patients.Methods:In this single-arm clinical trial, a total of 35 obese patients who visited Henan Provincial People′s Hospital from April to November 2018 were recruited as research subjects. They underwent a strict 32-day IER diet intervention, divided into 4 stages of 8 days each. Nutritional recipes were formulated and nutritious meals were provided to each obese patient with timed meals, including 55% carbohydrates, 15% protein, and 30% fat per meal. In stages 1, 2, 3, and 4, patients were provided with 2/3, 1/2, 1/3, and 1/4 of their previous calorie intake every other day, respectively, with meals at 8:00 and 16:00. During the remaining time, patients were allowed unrestricted eating at home. Physiological indicators (weight, body mass index, body fat percentage, waist circumference, hip circumference, fasting blood glucose, glycosylated hemoglobin, blood pressure, triglycerides, total cholesterol, high-density lipoprotein, low-density lipoprotein and Pittsburgh Sleep Quality Index (PSQI) scores were observed before and after the intervention. Gut microbiota changes were analyzed using metagenomic sequencing technology, and Spearman′s correlation analysis was used to assess the correlation between significantly different bacterial species and PSQI scores.Results:After the intervention, the body weight, body mass index, and PSQI scores of obese patients were all significantly lower than before intervention [(89.92±14.98) vs (97.53±15.67) kg, (31.94±3.95) vs (34.64±4.05) kg/m 2, (3.43±1.16) vs (5.42±2.27)], the abundance of gut microbiota was significantly higher after the intervention (all P<0.05). There were 45 significantly different bacterial species before and after the intervention, of which 6 bacterial species ( Enterobacter cloacae, Escherichia coli, Odoribacter splanchnicus, Oribacterium sinus, Streptococcus gordonii, and Streptococcus parasanguinis) showed significantly positive correlations with PSQI scores ( r=0.476, 0.475, 0.369, 0.391, 0.401, 0.423) (all P<0.05), and they were mainly enriched in the glutamate and tryptophan synthesis pathways. Conclusions:The personalized IER diet intervention can improve the sleep of obese patients while reducing weight, possibly mediated by changes in gut microbiota through the glutamate and tryptophan pathways.

Objective:To analyze the correlation between quantified body fat distribution measured by computed tomography (CT) and blood lipids in overweight and obese individuals undergoing physical examinations.Methods:In this retrospective cohort study, a total of 3 463 physical examination subjects who underwent chest CT combined with quantified CT examination in the Department of Health Management at Henan Provincial People′s Hospital from January to December 2021 were selected using a comprehensive sampling method. The subjects were divided into three groups: normal group (1, 424 cases), overweight group (1, 531 cases), and obese group (508 cases) based on their body mass index: 18.5 to <24.0 kg/m 2, 24.0 to <28.0 kg/m 2, and≥28.0 kg/m 2, respectively. General information, blood lipid parameters, and different body fat distributions measured by quantified CT (subcutaneous fat area, visceral fat area, total abdominal fat area, liver fat content, muscle fat content) were collected in the three groups. One-way analysis of variance was used to compare differences in body fat distribution and blood lipid parameters, and Pearson correlation analysis was performed to evaluate the correlation between body fat distribution and blood lipids. Results:In the obese group, compared to the normal and overweight groups, subcutaneous fat area, visceral fat area, total abdominal fat area, liver fat content, muscle fat content, total cholesterol, low-density lipoprotein cholesterol (LDL-C), and triglyceride levels were significantly higher [males: (152.80±49.27) vs (72.94±22.68), (103.79±28.30) cm 2; (287.95±57.55) vs (156.36±49.40), (224.67±53.10) cm 2; (440.75±72.44) vs (229.31±62.01), (328.46±62.77) cm 2; (12.92±8.61)% vs (6.82±3.31)%, (9.39±4.88)%; (9.06±9.34)% vs (4.55±5.06)%, (6.70±6.73)%; (6.52±0.94) vs (4.87±1.03), (6.27±0.96) mmol/L; (3.05±0.76) vs (2.92±0.86), (2.97±0.77) mmol/L; (2.34±1.42) vs (1.53±0.82), (1.99±1.28) mmol/L; females: (213.82±46.87) vs (104.69±30.62), (155.05±34.90) cm 2; (184.88±46.54) vs (90.67±34.09), (138.92±42.06) cm 2; (398.71±71.28) vs (195.37±55.32), (293.97±57.05) cm 2; (11.36±6.34)% vs (5.51±3.02)%, (7.98±4.77)%; (7.44±7.60)% vs (3.70±3.90)%, (5.56±5.94)%; (5.27±0.96) vs (5.04±0.86), (5.11±0.96) mmol/L; (3.26±0.84) vs (2.92±0.79), (3.01±0.74) mmol/L; (1.74±0.69) vs (1.27±0.65), (1.57±0.77) mmol/L], while high-density lipoprotein cholesterol (HDL-C) was significantly lower [males: (1.17±0.19) vs (1.38±0.28), (1.25±0.25) mmol/L; females: (1.36±0.22) vs (1.59±0.32), (1.42±0.27) mmol/L] (all P<0.001). In males, the visceral fat area and total abdominal fat area in the overweight group were positively correlated with triglycerides ( r=0.175, 0.113) and negatively correlated with HDL-C ( r=-0.125, -0.113), while liver fat content was positively correlated with total cholesterol, LDL-C, and triglycerides ( r=0.083, 0.075, 0.206) and negatively correlated with HDL-C ( r=-0.093) (all P<0.05). In the obese group, the liver fat content was positively correlated with triglycerides ( r=0.170) and negatively correlated with HDL-C ( r=-0.166) in males (both P<0.05). In females, the visceral fat area and total abdominal fat area in the overweight group were positively correlated with total cholesterol, LDL-C, and triglycerides (visceral fat area: r=0.129, 0.160, 0.348; total abdominal fat area: r=0.121, 0.130, 0.283) and negatively correlated with HDL-C ( r=-0.264, -0.173), while liver fat content was positively correlated with triglycerides ( r=0.352) and negatively correlated with HDL-C ( r=-0.195) (all P<0.05). In the obese group, the visceral fat area was positively correlated with triglycerides ( r=0.213) and negatively correlated with HDL-C ( r=-0.223) in females (both P<0.05). Conclusion:Blood lipids are correlated with body fat distribution in overweight and obese individuals undergoing physical examinations, and the degree of correlation varies between different genders and body regions, with triglycerides showing the strongest correlation with liver fat content.

ABSTRACT: Meningiomas are the most common primary intracranial neoplasm with diverse pathological types and complicated clinical manifestations. The fifth edition of the WHO Classification of Tumors of the Central Nervous System (WHO CNS5), published in 2021, introduces major changes that advance the role of molecular diagnostics in meningiomas. To follow the revision of WHO CNS5, this expert consensus statement was formed jointly by the Group of Neuro-Oncology, Society of Neurosurgery, Chinese Medical Association together with neuropathologists and evidence-based experts. The consensus provides reference points to integrate key biomarkers into stratification and clinical decision making for meningioma patients. REGISTRATION Practice guideline REgistration for transPAREncy (PREPARE), IPGRP-2022CN234.
Humans ; Meningioma/pathology* ; Consensus ; Neurosurgical Procedures ; Meningeal Neoplasms/pathology*

Objective:To observe the transparency and tissue structure changes of human corneal stromal lenticules after long-term cryopreservation and explore a simple and feasible method for long-term effective preservation of corneal stromal lenticules.Methods:Two hundred samples of intact human corneal stromal lenticules from 200 eyes were obtained during femtosecond laser small-incision lenticule extraction (SMILE) in Hainan Eye Hospital, Zhongshan Ophthalmic Center from 2013 to 2020.The samples were divided into 1-month, 24-month, 60-month and 80-month group and were stored in an ultra-low temperature freezer for 1, 24, 60 and 84 months respectively at -80 ℃ according to grouping, with 50 samples in each group.Transmittance of the corneal lenticules at wavelength of 300-800 nm was measured with an ultra-micro spectrophotometer and every lenticule was measured for 10 times with a 50 nm interval.The histomorphology and collagen fiber structure of the corneal lenticules were examined by hematoxylin-eosin staining and Masson staining, respectively.The arrangement of collagen fibers and ultrastructure changes of keratocytes in the samples were inspected with a transmission electron microscope.The apoptosis rate of keratocytes was determined by TUNEL staining.The study protocol was approved by an Ethics Committee of Hainan Eye Hospital at Zhongshan Ophthalmic Center (No.2013-003). This study complied with the Declaration of Helsinki.Written informed consent was obtained from each subject before surgery.Results:The corneal lenticules were clear and intact in all groups and no significant difference in the transmittance within 450-800 nm wavelength was seen among the 4 groups (all at P>0.05). Masson staining revealed that the collagen fibers in the lenticules were neatly arranged and tightly packed in the 1-month group.In the 24-month group, interfibrous vacuoles were found in some collagen fibers.The arrangement of the collagen fibers was loose and more vacuoles were displayed in the 60-month group, and the loss of some collagen fibers appeared and the lenticules were thinned in the 84-month group.It was found through hematoxylin-eosin staining that the morphological changes of corneal stromal lenticules corresponded to the alterations of collagen fibers.Transmission electron microscopy showed that in the 1-month group, the collagen fibers of the corneal stroma lenticules were neatly arranged and regular, and the corneal stromal cells were elongated and spindle-shaped, and the nuclear membrane was intact and the cytoplasm was abundant.In the 24-month group, the collagen fibers showed slightly loose arrangement, and the corneal stromal cells were deformed with incomplete nuclear membrane.In the 60-month group, the collagen fibers were in loose and irregular arrangement, and the nuclei were atrophied and deformed.The 84-month group showed disorganized arrangement of collagen fibers, wrinkled and atrophied corneal stromal cells, discontinuous nucleus membrane and nucleoplasmic lysis.TUNEL staining showed that the percentage of apoptotic corneal cells in lenticules was (87.80±1.17)%, (89.50±1.05)%, (89.30±1.51)% and (90.20±1.47)% in the 1-month, 24-month, 60-month and 84-month groups, respectively, with no statistically significant difference found in overall comparison ( F=4.525, P=0.053). Conclusions:The disorder of collagen fibers and apoptosis of keratocytes occur in the human corneal stromal lenticules till 84 months after cryopreservation, however, the transparency and integrity remain excellent.The ultra-low temperature preservation technique provides an effective and simple solution for long-term storage of human corneal stromal lenticule.

In December 2017, a 64-year-old male patient with pharyngeal fistula was treated in the Department of Burns and Plastic Surgery, Linfen Central Hospital. The patient had pharynx skin soft tissue-like round defects. The patient received two operations, including the submental artery island flap is turned over to form a lining, seal the fistula, and treat the secondary wound with VSD vacuum suction and skin grafting to seal the wound. After 2 years of follow-up, there was no recurrence of the pharyngeal fistula, the donor site was well concealed, and the patient couldoral feeding. With the help of the electronic larynx, the vocal function was partially restored, and the repair effect was good.

In December 2017, a 64-year-old male patient with pharyngeal fistula was treated in the Department of Burns and Plastic Surgery, Linfen Central Hospital. The patient had pharynx skin soft tissue-like round defects. The patient received two operations, including the submental artery island flap is turned over to form a lining, seal the fistula, and treat the secondary wound with VSD vacuum suction and skin grafting to seal the wound. After 2 years of follow-up, there was no recurrence of the pharyngeal fistula, the donor site was well concealed, and the patient couldoral feeding. With the help of the electronic larynx, the vocal function was partially restored, and the repair effect was good.

Objective: To investigate the changes of content and mRNA expression of gelsolin and proliferation activity of T-lymphocyte in spleen of mice with severe burn injury, so as to determine the optimum intervention time of gelsolin. Methods: Eighty male BALB/c mice were divided into sham injury group and burn group according to the random number table, with 40 mice in each group. Mice in burn group were inflicted with 15% total body surface area full-thickness scald (hereinafter referred to as burn) on the back. Immediately after injury, mice in burn group were hypodermic injected with 1 mL normal saline, with iodophor smeared on back once a day to prevent infection. Mice in sham injury group were sham injured without fluid infusion and smearing iodophor. At post injury hour (PIH) 0 (immediately), 8, 24, 48, and 72, spleen of 8 mice of each group were harvested aseptically, respectively. Proliferation activity of T-lymphocyte was determined with methyl-thiazolyl-tetrazolium colorimetry method; gelsolin content of spleen was determined with enzyme-linked immunosorbent assay; mRNA expression of gelsolin of spleen was determined with real-time fluorescent quantitative reverse transcription polymerase chain reaction. Data were processed with analysis of variance of factorial design, one-way analysis of variance, LSD test and Bonferroni correction. Results: (1) There was no significant difference in proliferation activity of T-lymphocyte in spleen of mice in two groups at PIH 0 (P>0.05). Proliferation activity of T-lymphocyte in spleen of mice in sham injury group was significantly higher than that in burn group at PIH 8, 24, 48, and 72 (with P values below 0.05). There was no significant difference in proliferation activity of T-lymphocyte in spleen of mice in sham injury group at each time point post injury (F=0.756, P>0.05). Proliferation activity of T-lymphocyte in spleen of mice in burn group at PIH 8 was 0.12±0.04, significantly lower than that at PIH 0, 24, 48, and 72 in the same group (0.73±0.07, 0.56±0.07, 0.51±0.09, and 0.59±0.07, respectively, with P values below 0.05). (2) There was no significant difference in gelsolin content of spleen of mice in two groups at PIH 0 (P>0.05). Gelsolin content of spleen of mice in sham injury group was significantly higher than that in burn group at PIH 8, 24, 48, and 72 (with P values below 0.05). There was no significant difference in gelsolin content of spleen of mice in sham injury group at each time point post injury (F=1.083, P>0.05). Gelsolin content of spleen of mice in burn group at PIH 8 was (11.9±2.6) pg/mg, significantly lower than that at PIH 0, 24, 48, and 72 in the same group [(37.7±2.9), (19.9±4.0), (24.1±4.1), and (24.6±4.0) pg/mg, respectively, with P values below 0.05]. (3) There was no significant difference in mRNA expression of gelsolin of spleen of mice in two groups at PIH 0 (P>0.05). The mRNA expressions of gelsolin of spleen of mice in sham injury group were significantly higher than those in burn group at PIH 8, 24, 48, and 72 (with P values below 0.05). There was no significant difference in mRNA expression of gelsolin of spleen of mice in sham injury group at each time point post injury (F=0.413, P>0.05). The mRNA expression of gelsolin of spleen of mice in burn group at PIH 8 was 0.307±0.064, significantly lower than that at PIH 0, 24, 48, and 72 in the same group (0.944±0.023, 0.625±0.091, 0.744±0.104, and 0.821±0.072, respectively, with P values below 0.05). Conclusions Severe burn injury could induce decrease of proliferation activity of T-lymphocyte and content and mRNA expressions of gelsolin in spleen of mice, and all of them decreased into the lowest at PIH 8. Optimum intervention time of gelsolin for severe burn would be before PIH 8.