1.Ultrasound-guided attenuation parameter for identifying metabolic dysfunction-associated steatotic liver disease: a prospective study
Yun-Lin HUANG ; Chao SUN ; Ying WANG ; Juan CHENG ; Shi-Wen WANG ; Li WEI ; Xiu-Yun LU ; Rui CHENG ; Ming WANG ; Jian-Gao FAN ; Yi DONG
Ultrasonography 2025;44(2):134-144
Purpose:
This study assessed the performance of the ultrasound-guided attenuation parameter (UGAP) in diagnosing and grading hepatic steatosis in patients with metabolic dysfunctionassociated steatotic liver disease (MASLD). Magnetic resonance imaging proton density fat fraction (MRI-PDFF) served as the reference standard.
Methods:
Patients with hepatic steatosis were enrolled in this prospective study and underwent UGAP measurements. MRI-PDFF values of ≥5%, ≥15%, and ≥25% were used as references for the diagnosis of steatosis grades ≥S1, ≥S2, and S3, respectively. Spearman correlation coefficients and area under the receiver operating characteristic curves (AUCs) were calculated.
Results:
Between July 2023 and June 2024, the study included 88 patients (median age, 40 years; interquartile range [IQR], 36 to 46 years), of whom 54.5% (48/88) were men and 45.5% (40/88) were women. Steatosis grades exhibited the following distribution: 22.7% (20/88) had S0, 50.0% (44/88) had S1, 21.6% (19/88) had S2, and 5.7% (5/88) had S3. The success rate for UGAP measurements was 100%. The median UGAP value was 0.74 dB/cm/MHz (IQR, 0.65 to 0.82 dB/ cm/MHz), and UGAP values were positively correlated with MRI-PDFF (r=0.77, P<0.001). The AUCs of UGAP for the diagnoses of ≥S1, ≥S2, and S3 steatosis were 0.91, 0.90, and 0.88, respectively. In the subgroup analysis, 98.4% (60/61) of patients had valid controlled attenuation parameter (CAP) values. UGAP measurements were positively correlated with CAP values (r=0.65, P<0.001).
Conclusion
Using MRI-PDFF as the reference standard, UGAP demonstrates good diagnostic performance in the detection and grading of hepatic steatosis in patients with MASLD.
2.Screening of Illicit Oxyphenisatin Substances in Weight-Loss Dietary Supplements by High Performance Liquid Chromatography-in-Source-Fragmentation-Quadrupole Time-of-Flight Mass Spectrometry
Hong-Fei SHI ; Ke-Yu LIU ; Bo-Peng XU ; Cheng-Xin XU ; Xiu-Qi ZHOU ; Yi-Fei ZHOU ; Ming-Xin GUO
Chinese Journal of Analytical Chemistry 2025;53(9):1576-1585,后插1-后插9,封3
By summarizing the mass spectrometric fragmentation patterns of oxyphenisatin substances,an analytical method was established for screening of illegally added oxyphenisatin compounds in weight-loss health foods using high performance liquid chromatography-in-source-fragmentation-quadrupole time-of-flight mass spectrometry(HPLC-ISF-QTOF-MS),along with a quantitative method for 11 kinds of oxyphenisatin compounds.Based on the developed screening method,an oxyphenisatin derivative was discovered in the reference standards,which was tentatively identified as 4-(3-(4-hydroxyphenyl)-2-oxoindolin-3-yl)phenyl acetate and confirmed by MS/MS analysis.The results showed that all 11 kinds of oxyphenisatin compounds had correlation coefficients greater than 0.9971,with limits of detection(LODs)ranging from 0.12 to 0.68 μg/L and limits of quantification(LOQ)from 0.21 to 2.29 μg/L.The LODs for 11 kinds of characteristic ions ranged from 0.45 to 9.11 μg/kg.At spiking levels of 25,50 and 100 μg/kg,the recoveries ranged from 78.9%to 117.3%.The instrumental precision,intra-day method precision and inter-day method precision were 0.23%?1.70%,0.7%?2.4%,and 1.1%?3.3%,respectively.The developed targeted and non-targeted detection method demonstrated high sensitivity,strong stability,rapid analysis,and an expanded screening range for oxyphenisatin substances,and provided robust technical support for regulatory authorities in combating illegal adulteration.
3.Analysis of the levels and food source of cadmium exposure by dietary pathway among middle-aged and elderly populations in cadmium-contaminated areas of China
Xiaochen WANG ; Yi ZHANG ; Xiaojie DONG ; Ruiting HAO ; Xiu YE ; Wenli ZHANG ; Ying ZHU ; Ailing LIU ; Yuan WEI ; Bing WU ; Yufei LUO ; Changzi WU ; Yanning MA ; Zhengxiong YANG ; Yuebin LYU ; Gangqiang DING ; Dongqun XU ; Xiaoming SHI
Chinese Journal of Preventive Medicine 2025;59(5):597-603
Objective:To evaluate the levels and source of cadmium exposure by dietary pathway among middle-aged and elderly people ≥40 in cadmium-contaminated areas of China.Methods:A total of 7 193 people aged 40-89 years from four typical cadmium-contaminated areas in China were selected as the study subjects. Food Frequency Questionnaire (FFQ), Total Diet Study (TDS) and a 3-day-24-hour dietary recall survey were conducted. Dietary cadmium intake and food sources through dietary pathways were assessed based on cadmium content in foods, consumption amounts and intake frequencies.Results:The mean age of the participants was 63.39±12.21 years, with 50.05% being males. The average monthly dietary cadmium intake was 7.39 μg/(kg·BW). Staple foods and vegetables were the primary sources of dietary cadmium intake, accounting for 57.51% and 32.48%, respectively. The monthly dietary cadmium intake in all surveyed regions did not exceed the Provisional Tolerable Monthly Intake (PTMI) recommended by the Joint FAO/WHO Expert Committee on Food Additives (JECFA).Conclusion:The monthly dietary cadmium intake among middle-aged and elderly people in cadmium-contaminated areas of China is relatively low, with the risk remaining at an acceptable level. Staple foods and vegetables are the most significant contributors to dietary cadmium intake.
4.Ultrasound-guided attenuation parameter for identifying metabolic dysfunction-associated steatotic liver disease: a prospective study
Yun-Lin HUANG ; Chao SUN ; Ying WANG ; Juan CHENG ; Shi-Wen WANG ; Li WEI ; Xiu-Yun LU ; Rui CHENG ; Ming WANG ; Jian-Gao FAN ; Yi DONG
Ultrasonography 2025;44(2):134-144
Purpose:
This study assessed the performance of the ultrasound-guided attenuation parameter (UGAP) in diagnosing and grading hepatic steatosis in patients with metabolic dysfunctionassociated steatotic liver disease (MASLD). Magnetic resonance imaging proton density fat fraction (MRI-PDFF) served as the reference standard.
Methods:
Patients with hepatic steatosis were enrolled in this prospective study and underwent UGAP measurements. MRI-PDFF values of ≥5%, ≥15%, and ≥25% were used as references for the diagnosis of steatosis grades ≥S1, ≥S2, and S3, respectively. Spearman correlation coefficients and area under the receiver operating characteristic curves (AUCs) were calculated.
Results:
Between July 2023 and June 2024, the study included 88 patients (median age, 40 years; interquartile range [IQR], 36 to 46 years), of whom 54.5% (48/88) were men and 45.5% (40/88) were women. Steatosis grades exhibited the following distribution: 22.7% (20/88) had S0, 50.0% (44/88) had S1, 21.6% (19/88) had S2, and 5.7% (5/88) had S3. The success rate for UGAP measurements was 100%. The median UGAP value was 0.74 dB/cm/MHz (IQR, 0.65 to 0.82 dB/ cm/MHz), and UGAP values were positively correlated with MRI-PDFF (r=0.77, P<0.001). The AUCs of UGAP for the diagnoses of ≥S1, ≥S2, and S3 steatosis were 0.91, 0.90, and 0.88, respectively. In the subgroup analysis, 98.4% (60/61) of patients had valid controlled attenuation parameter (CAP) values. UGAP measurements were positively correlated with CAP values (r=0.65, P<0.001).
Conclusion
Using MRI-PDFF as the reference standard, UGAP demonstrates good diagnostic performance in the detection and grading of hepatic steatosis in patients with MASLD.
5.Application effect of hand-sewn esophagojejunostomy in totally laparoscopic total gastrectomy for gastric cancer
Sheng-hui MA ; Jia REN ; Xin WANG ; Xiu-xia SHI ; Shu-yun CAI
Journal of Regional Anatomy and Operative Surgery 2025;34(5):431-434
Objective To explore the clinical effect of totally laparoscopic total gastrectomy combined with hand-sewn esophagojejunos-tomy for gastric cancer.Methods Ninety cases of gastric cancer patients were seleted,of which 45 cases undergoing Roux-en-Y esophagoje-junostomy for digestive tract reconstruction were set as the control group,while 45 cases undergoing hand-sewn esophagojejunostomy for digestive tract reconstruction were set as the observation group.Patients in the control group underwent laparoscopic-assisted total gastrectomy combined with Roux-en-Y esophagojejunostomy to reconstruct digestive tract,while patients in the observation group underwent totally laparoscopic total gastrectomy combined with hand-sewn esophagojejunostomy to reconstruct digestive tract.The perioperative indicators and complications of patients in the two groups were compared.Results The surgical time,time of esophagojejunostomy,and time to get out of bed after surgery of patients in the observation group were significantly shorter than those in the control group(P<0.05),the pain score 24 hours after surgery was significantly lower than that in the control group(P<0.05).There was no statistically significant difference between the two groups in terms of the incidence of complications or Clavien-Dindo grading(P>0.05).Conclusion Hand-sewn esophagojejunostomy for digestive tract reconstruction has a good clinical effect in gastric cancer during totally laparoscopic total gastrectomy.It can shorten the surgical time and time of esophagojejunostomy,reduce postoperative pain,and accelerate postoperative recovery,whose safety is comparable to Roux-en-Y esophagojejunostomy.
6.Analysis of the occurrence and risk factors of microperforations in surgical gloves used in dermatovenereology surgeries
Dan-li TANG ; Wei-na ZHANG ; Yan-yan NIU ; Ai-xiu SHI ; Fei HAN
Journal of Regional Anatomy and Operative Surgery 2025;34(5):444-447
Objective To clarify the occurrence,location distribution,and risk factors of microperforations in surgical gloves used in dermatovenereology surgeries.Methods A total of 898 sterilized surgical gloves worn by right-handed medical staff during dermatovenereology surgeries in Suqian Hospital of Jiangsu Province Hospital from May 2022 to April 2024 were selected as the research objects.The occurrence and location distribution of microperforations in all sterilized surgical gloves after surgery were collected.Univariate analysis and binary Logistic regression analysis were conducted on the factors that might lead to the occurrence of microperforations.Results Among the 898 gloves selected in this study,61 gloves(6.79%)had microperforations;the incidence of microperforations in the gloves worn on the left hand was significantly higher than that in the gloves worn on the right hand(P<0.05);microperforations were prone to occur on the palmar surfaces of the index finger and thumb of the gloves.The results of univariate and binary Logistic regression analyses showed that the use of special instruments,surgery duration≥60 minutes,ingrown nails surgery,and worn by the chief surgeon were the risk factors for the occur-rence of microperforations in sterilized surgical gloves(OR>1,P<0.05),while wearing double-layer gloves was the protective factor to avoid the occurrence of microperforations(OR<1,P<0.05).Conclusion The sterilized surgical gloves are more likely to occur microperforations if involved special instruments in surgery,surgery duration≥60 minutes,and ingrown nails surgery,and worn by the chief surgeon,while wearing double-layer gloves can reduce the incidence of microperforations.
7.Ultrasound-guided attenuation parameter for identifying metabolic dysfunction-associated steatotic liver disease: a prospective study
Yun-Lin HUANG ; Chao SUN ; Ying WANG ; Juan CHENG ; Shi-Wen WANG ; Li WEI ; Xiu-Yun LU ; Rui CHENG ; Ming WANG ; Jian-Gao FAN ; Yi DONG
Ultrasonography 2025;44(2):134-144
Purpose:
This study assessed the performance of the ultrasound-guided attenuation parameter (UGAP) in diagnosing and grading hepatic steatosis in patients with metabolic dysfunctionassociated steatotic liver disease (MASLD). Magnetic resonance imaging proton density fat fraction (MRI-PDFF) served as the reference standard.
Methods:
Patients with hepatic steatosis were enrolled in this prospective study and underwent UGAP measurements. MRI-PDFF values of ≥5%, ≥15%, and ≥25% were used as references for the diagnosis of steatosis grades ≥S1, ≥S2, and S3, respectively. Spearman correlation coefficients and area under the receiver operating characteristic curves (AUCs) were calculated.
Results:
Between July 2023 and June 2024, the study included 88 patients (median age, 40 years; interquartile range [IQR], 36 to 46 years), of whom 54.5% (48/88) were men and 45.5% (40/88) were women. Steatosis grades exhibited the following distribution: 22.7% (20/88) had S0, 50.0% (44/88) had S1, 21.6% (19/88) had S2, and 5.7% (5/88) had S3. The success rate for UGAP measurements was 100%. The median UGAP value was 0.74 dB/cm/MHz (IQR, 0.65 to 0.82 dB/ cm/MHz), and UGAP values were positively correlated with MRI-PDFF (r=0.77, P<0.001). The AUCs of UGAP for the diagnoses of ≥S1, ≥S2, and S3 steatosis were 0.91, 0.90, and 0.88, respectively. In the subgroup analysis, 98.4% (60/61) of patients had valid controlled attenuation parameter (CAP) values. UGAP measurements were positively correlated with CAP values (r=0.65, P<0.001).
Conclusion
Using MRI-PDFF as the reference standard, UGAP demonstrates good diagnostic performance in the detection and grading of hepatic steatosis in patients with MASLD.
8.An atrial fibrillation prediction model based on quantitative features of electrocardiogram during sinus rhythm in the Chinese population.
Xiaoqing ZHU ; Yajun SHI ; Juan SHEN ; Qingsong WANG ; Tingting SONG ; Jiancheng XIU ; Tao CHEN ; Jun GUO
Journal of Southern Medical University 2025;45(2):223-228
OBJECTIVES:
To develop an early atrial fibrillation (AF) risk prediction model based on large-scale electrocardiogram (ECG) data from the Chinese population.
METHODS:
The data of multiple ECG records of 30 383 patients admitted in the Chinese PLA General Hospital between 2009 and 2023 were randomly divided into the training set and the internal testing set in a 7:3 ratio. The predictive factors were selected based on the training set using univariate analysis, LASSO regression, and the Boruta algorithm. Cox proportional hazards regression was used to establish the ECG model and the composite model incorporating age, gender, and ECG model score. The discrimination power, calibration, and clinical net benefits of the models were evaluated using the area under the receiver operating characteristic curve (AUROC), calibration curves, and decision curves.
RESULTS:
The cohort included 51.1% male patients with a median age of the patients of 51 (36, 62) years and an AF incidence of 4.5% (1370/30 383). In the ECG model, the parameters related to the P wave and QRS complex were identified as significant predictors. In the testing set, the AUROC of the ECG model for predicting 5-year AF risk was 0.77 (95% CI: 0.74-0.80), which was increased to 0.81 (95% CI: 0.78-0.83) after incorporating age and gender, with a net reclassification improvement of 0.123 and an integrated discrimination improvement of 0.04 (P<0.05). The calibration curve of the model was close to the diagonal line. Decision curve analysis showed that the clinical net benefit of the composite model was higher than that of the ECG model across the majority of threshold probability.
CONCLUSIONS
The composite model incorporating quantitative ECG features during sinus rhythm, along with age and gender, can effectively predict AF risk in the Chinese population, thus providing a low-cost screening tool for early AF risk assessment and management.
Humans
;
Atrial Fibrillation/epidemiology*
;
Electrocardiography
;
Middle Aged
;
Male
;
Female
;
China/epidemiology*
;
Proportional Hazards Models
;
Adult
;
Risk Factors
;
Risk Assessment
;
East Asian People
9.Senescent Nociceptors: A Novel Therapeutic Target for Chronic Pain Treatment.
Shi-Yu SUN ; Xiu-Hua MIAO ; Guo-Kun ZHOU ; Tong LIU
Neuroscience Bulletin 2025;41(12):2322-2325
10.Acupuncture at Weizhong (BL40) attenuates acetic acid-induced overactive bladder in rats by regulating brain neural activity through the modulation of mast cells and tibial nerves.
Xin LIU ; Chao-Yue ZHANG ; Xiu-Yu DU ; Shan-Shan LI ; Yu-Qing WANG ; Yi ZHENG ; Han-Zhi DENG ; Xiao-Qin FANG ; Jia-Ying LI ; Zu-Qing WANG ; Shi-Fen XU ; Yi-Qun MI
Journal of Integrative Medicine 2025;23(1):46-55
OBJECTIVE:
The present study evaluated the effects of deep acupuncture at Weizhong acupoint (BL40) on bladder function and brain activity in a rat model of overactive bladder (OAB), and investigated the possible mechanisms around the acupuncture area that initiate the effects of acupuncture.
METHODS:
Adult female Sprague-Dawley rats were randomly divided into six groups, comprising a control group, model group, group treated with deep acupuncture at BL40, group treated with shallow acupuncture at BL40, group treated with acupuncture at non-acupoint next to BL40, and group treated with acupuncture at Xuanzhong (GB39). Urodynamic evaluation was used to observe the urination, and functional magnetic resonance imaging was used to observe the brain activation. The mechanism of acupuncture at BL40 in regulating bladder function was explored by toluidine blue staining and enzyme-linked immunosorbent assay, and the mechanism was verified by stabilizing mast cells (MCs) or blocking tibial nerve.
RESULTS:
Deep acupuncture at BL40 significantly increased the intercontraction interval in OAB rats and enhanced the mean amplitude of low frequency fluctuation of primary motor cortex (M1), periaquaductal gray matter (PAG), and pontine micturition center (PMC). It also increased the zero-lag functional connectivity between M1 and PAG and between PAG and PMC. Shallow acupuncture at BL40 and acupuncture at non-acupoint or GB39 had no effect on these indexes. Further studies suggested that deep acupuncture at BL40 increased the number and degranulation rate of MCs as well as the contents of 5-hydroxytryptamine, substance P, and histamine in the tissues around BL40. Blocking the tibial nerve by lidocaine injection or inhibiting MC degranulation by sodium cromoglycate injection obstructed the effects of acupuncture on restoring urinary function and modulating brain activation in OAB rats.
CONCLUSION
Deep acupuncture at BL40 may be more effective for inhibiting OAB by promoting degranulation of MCs around the acupoint and stimulating tibial nerve, thereby regulating the activation of the brain area that controls the lower urinary tract. Please cite this article as: Liu X, Zhang CY, Du XY, Li SS, Wang YQ, Zheng Y, Deng HZ, Fang XQ, Li JY, Wang ZQ, Xu SF, Mi YQ. Acupuncture at Weizhong (BL40) attenuates acetic acid-induced overactive bladder in rats by regulating brain neural activity through the modulation of mast cells and tibial nerves. J Integr Med. 2025; 23(1): 46-55.
Animals
;
Urinary Bladder, Overactive/physiopathology*
;
Mast Cells/physiology*
;
Rats, Sprague-Dawley
;
Female
;
Acupuncture Therapy
;
Acupuncture Points
;
Rats
;
Brain/physiopathology*
;
Tibial Nerve/physiopathology*
;
Acetic Acid
;
Urinary Bladder/physiopathology*

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