1.Effect of Wenyang Huazhuo Formula (温阳化浊方) on Reproductive Aging,Ovarian Mechanical Micro-environment,and Offspring Reproductive Potential in Aged Model Mice
Jiaqi XU ; Xiaoli ZHAO ; Nan JIANG ; Kaixi LI ; Yafei DING ; Zimu WEN ; Yingying JIA ; Mengjun JIANG ; Tian XIA
Journal of Traditional Chinese Medicine 2025;66(6):612-620
ObjectiveTo explore the possible mechanisms of Wenyang Huazhuo Formula (温阳化浊方, WHF) in improving reproductive aging from the perspective of the ovarian mechanical microenvironment. MethodsThe experiment included five groups, 3-month group (20 female mice at 3 months of age), 6-month group (20 female mice at 6 months of age), 6-month + WHF group (20 female mice at 5 months of age treated with WHF), 9-month group (20 female mice at 9 months of age), and 9-month + WHF group (20 female mice at 8 months of age treated with WHF). The 6-month + WHF group and 9-month + WHF group were orally administered WHF 41.2 g/(kg·d) once daily for 4 consecutive weeks. The other three groups received no intervention. Reproductive hormone levels were measured by ELISA. HE staining was used to count the numbers of various stages of follicles. Ovarian hyaluronic acid (HA) content and collagen fiber content were measured to evaluate the ovarian mechanical microenvironment. Superovulation was performed to observe the number of eggs obtained, as well as the number of offspring and birth weight to assess fertility. The in vitro fertilization and blastocyst culture of oocytes from female offspring in each group were observed to evaluate the effect of WHF on offspring reproductive potential. ResultsCompared with the 3-month group, the 6-month group and 9-month group showed significantly decreased serum levels of gonadotropin-releasing hormone (GnRH), follicle-stimulating hormone (FSH), and luteinizing hormone (LH), decreased ovarian collagen content, and reduced numbers of primordial and secondary follicles. In contrast, the numbers of primary follicles, antral follicles, and atretic follicles increased. The levels of anti-Müllerian hormone (AMH), ovarian HA content, and the fertilization rate, cleavage rate, and blastocyst formation rate of oocytes from offspring were significantly lower (P<0.05). Compared with the 6-month group, the 6-month + WHF group showed significantly reduced serum levels of GnRH, FSH, and LH, with a significant decrease in primary follicles, antral follicles, and atretic follicles as well as increase of AMH levels, ovarian HA content, number of primordial and secondary follicle, egg count, and offspring birth weight (P<0.05). Compared with the 9-month group, the 9-month + WHF group exhibited reduced GnRH, FSH, and collagen fiber content, as well as reduced number of primary follicles, antral follicles, and atretic follicles. However, AMH levels, ovarian HA content, number of primordial and secondary follicle, egg count, offspring numbers, birth weight, fertilization rate, cleavage rate, and blastocyst formation rate of oocytes from offspring all significantly increased (P<0.05). ConclusionWHF can significantly improve the ovarian reserve, fertility, and reproductive potential in offspring during reproductive mid-life and late-life stages. Its effect may be related to the remodeling of the mechanical microenvironment of aging ovaries. Moreover, the effect on the mechanical microenvironment remodeling of late-stage ovaries and the improvement of the offspring reproductive potential is more significant.
2.miR-27a-3p promotes the proliferation of human hypertrophic scar fibroblasts by regulating mitogen-activated protein kinase signaling pathway
Jun LI ; Jingjing GONG ; Guobin SUN ; Rui GUO ; Yang DING ; Lijuan QIANG ; Xiaoli ZHANG ; Zhanhai FANG
Chinese Journal of Tissue Engineering Research 2025;29(8):1609-1617
BACKGROUND:Multiple studies have confirmed that mitogen-activated protein kinase(MAPK)signaling pathway is involved in cell proliferation,and microRNA(miR)is involved in the occurrence and development of hypertrophic scars.Therefore,the role of miR-27a-3p and MAPK signaling pathways in pathological scar formation has been further explored. OBJECTIVE:To explore the effect of miR-27a-3p on the proliferation of human hypertrophic scar fibroblasts through the MAPK signaling pathway. METHODS:The primary fibroblasts were isolated and collected from the skin samples.The primary fibroblasts were observed by inverted microscope and verified by immunofluorescence.The relative expression level of miR-27a-3p in tissues was detected by qRT-PCR.The target genes of hsa-miR-27a-3p were predicted using the database,and then the predicted target genes were enriched by gene ontology function analysis and biological pathway enrichment analysis of the Kyoto Encyclopedia of Genes and Genomes.There were seven groups:blank control,negative control,miR-27a-3p mimic,miR-27a-3p inhibitor,miR-27a-3p mimic+p38 MAPK inhibitor,miR-27a-3p mimic+extracellular regulated protein kinase inhibitor,miR-27a-3p mimic+c-Jun N-terminal kinase inhibitor.Western blot was used to detect the levels of extracellular regulated protein kinase,c-Jun N-terminal kinase inhibitor.and p38 kinase and their phosphorylation levels.Cell counting kit-8 and EdU were used to detect cell proliferation. RESULTS AND CONCLUSION:Compared with normal skin fibroblasts,hypertrophic scar fibroblasts had stronger proliferative activity(P<0.05)and faster proliferation level(P<0.001).Compared with normal skin,miR-27a-3p was highly expressed in hypertrophic scars(P<0.001).Compared with the negative control group,overexpression of miR-27a-3p could promote cell proliferation activity(P<0.001)and proliferation levels(P<0.001).Compared with the negative control group,knockdown of miR-27a-3p could inhibit the proliferation activity(P<0.05)and proliferation levels(P<0.001).Compared with the negative control group,overexpression of miR-27a-3p promoted the phosphorylated levels of extracellular regulated protein kinase,c-Jun N-terminal kinase,and p38 mitogen-activated protein kinase(P<0.05).Compared with the negative control group,knockdown of miR-27a-3p inhibited the phosphorylated levels of extracellular regulated protein kinase,c-Jun N-terminal kinase,and p38 MAPK(P<0.05).Compared with the miR-27a-3p mimic group,specific inhibitors of extracellular regulated protein kinase,c-Jun N-terminal kinase,and p38 MAPK reversed the effects of miR-27a-3p on the proliferative activity(P<0.01)and proliferation level(P<0.001)of fibroblasts.To conclude,these results suggest that miR-27a-3p promotes the proliferation of human hypertrophic scar fibroblasts by activating the MAPK signaling pathway.
3.The Role of Prefrontal and Posterior Parietal Cortex in Generating Multiple Step Saccades.
Wenbo MA ; Zhaohuan DING ; Leixiao FENG ; Xiaoli LI ; Mingsha ZHANG
Neuroscience Bulletin 2025;41(8):1418-1428
While multiple step saccades (MSS) are occasionally reported in the healthy population, they are more evident in patients with Parkinson's disease (PD). Therefore, MSS has been suggested as a biological marker for the diagnosis of PD. However, the lack of clarity on the neural mechanism underlying the generation of MSS largely impedes their application in the clinic. We have proposed recently that MSS are triggered by the discrepancy between desired and executed saccades. Accordingly, brain regions involved in saccadic planning and execution might play a role in the generation of MSS. To test this hypothesis, we explored the role of the prefrontal (PFC) and posterior parietal cortex (PPC) in generating MSS by conducting two experiments: electroencephalographic recording and single-pulse transcranial magnetic stimulation in the PFC or PPC of humans while participants were performing a gap saccade task. We found that the PFC and PPC are involved in the generation of MSS.
Humans
;
Parietal Lobe/physiology*
;
Saccades/physiology*
;
Prefrontal Cortex/physiology*
;
Male
;
Transcranial Magnetic Stimulation
;
Female
;
Electroencephalography
;
Adult
;
Young Adult
4.Clinical analysis of maternal autoantibody-mediated complete left bundle branch block in 9 children
Xiaoli WANG ; Fang YANG ; Ling HAN ; Wenhong DING ; Xinxin GUO ; Xinyu LIN ; Shengwei CHEN
Chinese Journal of Pediatrics 2024;62(9):872-876
Objective:To analyze the clinical characteristics, treatment, and outcomes of children with complete left bundle branch block (CLBBB) mediated by maternal autoantibodies.Methods:A retrospective analysis was conducted on nine children diagnosed with maternal autoantibody-mediated CLBBB, treated at Beijing Anzhen Hospital and Fujian Provincial Hospital from March 2015 to August 2023. Their clinical characteristics, electrocardiographic and echocardiographic findings before and after treatment were reviewed. Paired sample t-test was used for inter-group comparison. Results:Among the mothers, 6 had positive antinuclear antibodies (ANA), 5 had anti-Sjogren syndrome antigen A antibodies, and 3 had anti-Ro-52 antibodies. The cohort included one female and eight male children, diagnosed with CLBBB at the age of 1 (2, 13) months. The positive autoantibodies in the infants, consisted with maternal antibodies, were detected within the first 3 months of life among 3 cases. Treatments included anti-heart failure therapy, myocardial nutritional support, intravenous immunoglobulin (IVIG) and glucocorticoids. Before treatment, the levels of troponin I (0.175 (0.060, 10.270) μg/L) and N-terminal pro-B-type natriuretic peptide (420 (327, 12 865) ng/L) were elevated, which normalized in most cases after treatment. Post-treatment, the QRS duration significantly shortened compared to pre-treatment ((137±15) vs.(169±25) ms, t=3.76, P<0.001), and the QTc interval significantly decreased ((433±41) vs. (514±27) ms, t=4.95, P=0.001). Before treatment, varying degrees of mitral and tricuspid regurgitation and marked interventricular septal dyskinesia were observed in echocardiography. After treatment, valve regurgitation and ventricular septum motion significantly improved, with a marked increase in left ventricular ejection fraction ((51±13)% vs. (27±6)%, t=-6.66, P<0.001). Conclusions:Maternal autoantibody-mediated CLBBB in children presents with chronic heart failure in infancy. Early treatment with anti-heart failure medications, IVIG and glucocorticoids can improve clinical symptoms.
5.Summary of the best evidence on nebulizing inhalation care in adults with mechanical ventilation
Juan DING ; Xiaoli CHEN ; Yue XIAO ; Lin CHEN ; Yingting XU ; Changju LIAO ; Hang SONG ; Xiaoyan ZHANG ; Hong YU
Chinese Journal of Nursing 2024;59(12):1512-1519
Objective The researchers systematically retrieved,evaluated,and summarized the best evidence for the care of nebulized inhalation in adult patients on mechanical ventilation,to provide a basis for standardizing the care of nebulized inhalation in patients on mechanical ventilation.Methods We systematically searched the domestic and foreign databases to collect the evidence on the literature related to nebulization therapy for mechanical ventilation in adults.The time for the retrieval is from the inception of databases until February 2023.There were 3 researchers who evaluated the quality of the literature,and extracted and summarized the evidence based on this subject.Results A total of 19 articles were obtained in database.42 pieces of evidence were summarized,covering pre-assessment of nebulized inhalation,preparation before nebulized inhalation,medication management,selection and standardized use of nebulization devices,respiratory machine mode and parameter settings,equipment management during nebulized inhalation,evaluation of effect,management of adverse reactions,disposal of materials and environment after nebulized inhalation and management of nebulized inhalation for respiratory infectious diseases.Conclusion This study summarized the best evidence for nebulized inhalation nursing in adult patients with mechanical ventilation,so as to provide a reference of standardized nebulized inhalation therapy for such patients,which is conducive to ensuring the safety of patients.
6.Fu's subcutaneous needling for non-acute idiopathic facial paralysis : a randomized controlled trial.
Lamei TAO ; Jing LI ; Jin LU ; Maohui ZHU ; Zhihong XIE ; Xiaoli BAO ; Xinghao DING
Chinese Acupuncture & Moxibustion 2024;44(11):1249-1253
OBJECTIVE:
To observe the effect of Fu's subcutaneous needling in the treatment of non-acute idiopathic facial paralysis and its effect on serum levels of nitric oxide (NO) and endothelin (ET).
METHODS:
A total of 76 patients with non-acute idiopathic facial paralysis were randomly divided into an observation group (38 cases, 2 cases dropped out) and a control group (38 cases, 2 cases dropped out). The patients in the control group received basic treatment (mecobalamin tablets orally, specific electromagnetic spectrum irradiation, facial muscle rehabilitation training). The patients in the observation group were treated with Fu's subcutaneous needling on the basis of the control group. The needling points included brachioradialis muscle, sternocleidomastoid muscle, trapezius muscle, etc., and the needling was inserted around the affected muscle, and the reperfusion activity was carried out at the same time, once every other day, 3 times a week. Both groups were treated for 4 weeks. The House-Brackmann (H-B) grade and H-B symptom score were observed before treatment, after 2 and 4 weeks of treatment in the two groups. The facial disability index (FDI) score [including physical function (FDIP) score and social life function (FDIS) score] and the serum levels of NO and ET were compared before and after 4 weeks of treatment in the two groups. The clinical effect and safety of the two groups were assessed.
RESULTS:
After 2 and 4 weeks of treatment, the H-B grade of the two groups was lower than that before treatment, and the H-B symptom scores were higher than those before treatment (P<0.001, P<0.05); the H-B grade of the observation group was lower than that of the control group, and the H-B symptom score was higher than that of the control group (P<0.01, P<0.05). After 4 weeks of treatment, the FDIP scores of the two groups were higher than those before treatment, and the FDIS scores were lower than those before treatment (P<0.05 ); the FDIP score of the observation group was higher than that of the control group, and the FDIS score was lower than that of the control group (P<0.05). After 4 weeks of treatment, the serum level of NO in the observation group was higher than that before treatment, and the serum level of ET was lower than that before treatment (P<0.05); the increase of serum level of NO and the decrease of serum level of ET in the observation group were greater than those in the control group (P<0.05). The cure rate of the observation group was 55.6% (20/36), which was higher than 22.2% (8/36) of the control group (P<0.05). There were no serious adverse reactions in both groups.
CONCLUSION
Fu's subcutaneous needling combined with basic treatment can effectively improve the motor function of facial muscles in patients with non-acute idiopathic facial paralysis, which may be related to the regulation of serum NO and ET levels.
Humans
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Male
;
Female
;
Middle Aged
;
Adult
;
Acupuncture Therapy
;
Aged
;
Facial Paralysis/physiopathology*
;
Young Adult
;
Nitric Oxide/blood*
;
Treatment Outcome
;
Acupuncture Points
;
Endothelins/blood*
;
Adolescent
7.Comparison of Jinzhen oral liquid and ambroxol hydrochloride and clenbuterol hydrochloride oral solution in the treatment of acute bronchitis in children: A multicenter, non-inferiority, prospective, randomized controlled trial.
Qinhua FAN ; Chongming WU ; Yawei DU ; Boyang WANG ; Yanming XIE ; Zeling ZHANG ; Wenquan SU ; Zizhuo WANG ; Changchang XU ; Xueke LI ; Ying DING ; Xinjiang AN ; Jing CHEN ; Yunying XIAO ; Rong YU ; Nan LI ; Juan WANG ; Yiqun TENG ; Hongfen LV ; Nian YANG ; Yuling WEN ; Xiaoli HUANG ; Wei PAN ; Yufeng LIU ; Xueqin XI ; Qianye ZHAO ; Changshan LIU ; Jian XU ; Haitao ZHANG ; Lie ZHUO ; Qiangquan RONG ; Yu XIA ; Qin SHEN ; Shao LI ; Junhong WANG ; Shengxian WU
Acta Pharmaceutica Sinica B 2024;14(12):5186-5200
The comparison between traditional Chinese medicine Jinzhen oral liquid (JZOL) and Western medicine in treating children with acute bronchitis (AB) showed encouraging outcomes. This trial evaluated the efficacy and safety of the JZOL for improving cough and expectoration in children with AB. 480 children were randomly assigned to take JZOL or ambroxol hydrochloride and clenbuterol hydrochloride oral solution for 7 days. The primary outcome was time-to-cough resolution. The median time-to-cough resolution in both groups was 5.0 days and the antitussive onset median time was only 1 day. This randomized controlled trial showed that JZOL was not inferior to cough suppressant and phlegm resolving western medicine in treating cough and sputum and could comprehensively treat respiratory and systemic discomfort symptoms. Combined with clinical trials, the mechanism of JZOL against AB was uncovered by network target analysis, it was found that the pathways in TRP channels like IL-1β/IL1R/TRPV1/TRPA1, NGF/TrkA/TRPV1/TRPA1, and PGE2/EP/PKA/TRPV1/TRPA1 might play important roles. Animal experiments further confirmed that inflammation and the immune regulatory effect of JZOL in the treatment of AB were of vital importance and TRP channels were the key mechanism of action.
8.Trans-ethnic Mendelian randomization study of systemic lupus erythematosus and common female hormone-dependent malignancies.
Tingting ZHU ; Yantao DING ; Xiaoli XU ; Liyin ZHANG ; Xuejun ZHANG ; Yong CUI ; Lu LIU
Chinese Medical Journal 2023;136(21):2609-2620
BACKGROUND:
Observational research has reported that systemic lupus erythematosus (SLE) is related to common female hormone-dependent cancers, but the underlying causal effect remains undefined. This study aimed to explore the causal association of these conditions by Mendelian randomization (MR) analysis.
METHODS:
We selected instrumental variables for SLE from genome-wide association studies (GWASs) conducted in European and East Asian populations. The genetic variants for female malignant neoplasms were obtained from corresponding ancestry GWASs. We utilized inverse variance weighted (IVW) as the primary analysis, followed by sensitivity analysis. Furthermore, we conducted multivariable MR (MVMR) to estimate direct effects by adjusting for the body mass index and estradiol. Finally, we implemented reverse direction MR analysis and gave a negative example to test the reliability of MR results.
RESULTS:
We found SLE was significantly negatively associated with overall endometrial cancer risk (odds ratio [OR] = 0.961, 95% confidence interval [CI] = 0.935-0.987, P = 3.57E-03) and moderately inversely related to endometrioid endometrial cancer (ENEC) (OR = 0.965, 95% CI = 0.936-0.995, P = 0.024) risk in the European population by IVW. We replicated these results using other MR models and detected a direct effect by MVMR (overall endometrial cancer, OR = 0.962, 95% CI = 0.941-0.983, P = 5.11E-04; ENEC, OR = 0.964, 95% CI = 0.940-0.989, P = 0.005). Moreover, we revealed that SLE was correlated with decreased breast cancer risk (OR = 0.951, 95% CI = 0.918-0.986, P = 0.006) in the East Asian population by IVW, and the effect was still significant in MVMR (OR = 0.934, 95% CI = 0.859-0.976, P = 0.002). The statistical powers of positive MR results were all >0.9.
CONCLUSION
This finding suggests a possible causal effect of SLE on the risk of overall endometrial cancer and breast cancer in European and East Asian populations, respectively, by MR analysis, which compensates for inherent limitations of observational research.
Female
;
Humans
;
Genome-Wide Association Study
;
Mendelian Randomization Analysis
;
Neoplasms, Hormone-Dependent
;
Reproducibility of Results
;
Endometrial Neoplasms
;
Lupus Erythematosus, Systemic/genetics*
;
Carcinoma, Endometrioid
;
Breast Neoplasms
;
Polymorphism, Single Nucleotide
9.The expression of miR-122 in the liver of rats infected with Clonorchis sinensis and its correlation with inflammatory cytokines
Haihong ZHENG ; Jian DING ; Xiaoli ZHANG ; Xiang LI ; Lijiao ZUO ; Shanshan DUAN ; Xueli ZHANG ; Xu JIANG ; Su HAN
Chinese Journal of Endemiology 2023;42(5):376-381
Objective:To observe the expression changes of microRNA(miR)-122 in liver tissue of rats infected with Clonorchis sinensis and its correlation with expression level of inflammatory cytokines. Methods:Totally 24 SPF grade Wistar male rats were selected and randomly divided into a control group (100 μl physiological saline gavage), a 4-week infection group (100 Clonorchis sinensis metacercariae gavage), and an 8-week infection group (100 Clonorchis sinensis metacercariae gavage) based on body weight (100-120 g) using a random number table method, with 8 rats in each group. Starting from the third week of infection, rat feces were collected and directly smeared with physiological saline for identification of Wistar rat animal models infected with Clonorchis sinensis. After 4 and 8 weeks of infection, the rats in the 4- and 8-week infection groups were euthanized, while 4 rats in the control group were euthanized, respectively. The heart blood and left lobe liver tissue and serum samples were collected from each group of rats. Using hematoxylin-eosin (HE) staining to observe liver pathological damage under the light microscope, real-time fluorescence quantitative PCR to detect the expression level of miR-122 in liver tissue, and Luminex 200 liquid suspension chip to detect the expression levels of serum inflammatory cytokines [tumor necrosis factor-α(TNF-α), interleukin-1β(IL-1β), interleukin-6 (IL-6)]. The correlation between miR-122 and inflammatory cytokines was analyzed using Pearson correlation. Results:Under the light microscope, the morphology of hepatocytes in control group was normal, and no inflammatory cell infiltration was observed. There was inflammatory cells such as lymphocyte, eosinophil and other inflammatory cell infiltration around the portal area in the 4-week infection group. The hepatocytes of the 8-week infected rats were arranged in a disordered manner, with varying degrees of swelling, loose and lightly stained cytoplasm, and some hepatocytes showed watery degeneration; additionally, bile duct dilation and thickening of the bile duct wall were observed in the liver tissue. There were statistically significant differences of liver miR-122 (1.00 ± 0.32, 2.57 ± 0.60, 3.63 ± 1.63), serum TNF-α [(0.14 ± 0.06), (0.43 ± 0.09), (0.61 ± 0.10) ng/ml], and IL-6 expression levels [(0.03 ± 0.01), (1.06 ± 0.24), (1.48 ± 0.33) ng/ml] in control group, 4- and 8-week infection groups ( F = 13.36, 69.99, 82.23, P < 0.001). There was no statistically significant difference in expression level of IL-1β between different groups ( F = 2.15, P = 0.141). The Pearson correlation analysis showed that the expression level of miR-122 was positively correlated with the expression levels of inflammatory cytokines TNF-α and IL-6 ( r = 0.67, 0.80, P < 0.001). Conclusion:Clonorchis sinensis infection can increase the expression of miR-122 in the host liver tissue, and the miR-122 is closely related to the expression levels of inflammatory cytokines TNF-α and IL-6.
10.Predictive values of 18F-FDG PET/CT image feature and metabolic parameters for the malignant potential of gastrointestinal stromal tumor
Li ZHANG ; Yueli TIAN ; Yong HE ; Haiyan LI ; Min WANG ; Ying DING ; Yu LIU ; Yongxue ZHANG ; Xiaoli LAN ; Wei CAO
Chinese Journal of Nuclear Medicine and Molecular Imaging 2023;43(2):91-96
Objective:To investigate the predictive values of 18F-FDG PET/CT image feature and metabolic parameters for the malignant potential of gastrointestinal stromal tumor (GIST). Methods:From March 2014 to June 2020, the 18F-FDG PET/CT imaging and surgical pathological data of 35 patients with GIST (27 males, 8 females; age 44-84 years) from Union Hospital, Tongji Medical College, Huazhong University of Science and Technology and Zhongnan Hospital of Wuhan University were analyzed retrospectively. Patients were divided into ring-shaped uptake group and other uptake patterns group according to 18F-FDG PET/CT image feature. Fisher′s exact test was used to analyze the differences of tumor necrosis and National Institutes of Health (NIH) risk classification (short for NIH classification) between different image feature groups. Mann-Whitney U test was used to analyze the differences of SUV max , metabolic parameters at different thresholds (2.5, 40%, 50%) of SUV max (metabolic tumor volume (MTV; MTV 2.5, MTV 40%, MTV 50%) and total lesion glycolysis (TLG; TLG 2.5, TLG 40%, TLG 50%)) between different clinicopathological features (lesion location, tumor diameter, mitotic count, Ki-67, necrosis, image feature, NIH classification) groups. Spearman rank correlation analysis was used to explore the correlation between clinicopathological features and metabolic parameters. ROC curve analysis was used to distinguish NIH classification of different metabolic parameters. Delong test was used to compared differences between different AUCs. Results:Of 35 GIST patients, 11(31.4%) were ring-shaped uptake and 24(68.6%) were other uptake patterns, and the differences of necrosis (7/11 vs 12.5%(3/24); P=0.004) and NIH classification (11/11 vs 25.0%(6/24); P<0.001) between the two groups were significant. There were significant differences of metabolic parameters between different groups of tumor diameter, mitotic count, necrosis, image feature, NIH classification ( z values: from -4.70 to -2.09, all P<0.05), while there were no significant differences of Ki-67 ( z values: from -0.83 to -0.71, all P>0.05). Metabolic parameters were correlated with mitotic count, tumor diameter, necrosis, image feature and NIH classification ( rs values: 0.36-0.81, all P<0.05), while was not correlated with Ki-67 ( rs values: 0.12-0.14, all P>0.05). The differences of AUCs between SUV max and MTV 2.5, TLG 2.5, TLG 40%, TLG 50%were significant (0.752, 0.856, 0.856, 0.882, 0.886; z values: 1.96-2.12, all P<0.05). Conclusions:The NIH classification of GIST with ring-shaped uptake on 18F-FDG PET/CT is higher and more prone to necrosis. The 18F-FDG PET/CT metabolic parameters based on different thresholds of SUV max have certain significance for the prediction of NIH classification of GIST, and may be superior to SUV max.

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