1.Effect modification of amino acid levels in association between polycyclic aromatic hydrocarbon exposure and metabolic syndrome: A nested case-control study among coking workers
Jinyu WU ; Jiajun WEI ; Shugang GUO ; Huixia XIONG ; Yong WANG ; Hongyue KONG ; Liuquan JIANG ; Baolong PAN ; Gaisheng LIU ; Fan YANG ; Jisheng NIE ; Jin YANG
Journal of Environmental and Occupational Medicine 2025;42(3):325-333
Background Exposure to polycyclic aromatic hydrocarbons (PAHs) is associated with the development of metabolic syndrome (MS). However, the role of amino acids in PAH-induced MS remains unclear. Objective To explore the impact of PAHs exposure on the incidence of MS among coking workers, and to determine potential modifying effect of amino acid on this relationship. Methods Unmatched nested case-control design was adopted and the baseline surveys of coking workers were conducted in two plants in Taiyuan in 2017 and 2019, followed by a 4-year follow-up. The cohort comprised 667 coking workers. A total of 362 participants were included in the study, with 84 newly diagnosed cases of MS identified as the case group and 278 as the control group. Urinary levels of 11 PAH metabolites and plasma levels of 17 amino acids were measured by ultrasensitive performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Logistic regression was used to estimate the association between individual PAH metabolites and MS. Stratified by the median concentration of amino acids, Bayesian kernel machine regression (BKMR) model was employed to assess the mixed effects of PAHs on MS. Due to the skewed data distribution, all PAH metabolites and amino acids in the analysis were converted by natural logarithm ln (expressed as lnv). Results The median age of the 362 participants was 37 years, and 83.2% were male. Compared to the control group, the case group exhibited higher concentrations of urinary 2-hydroxyphenanthrene (2-OHPhe), 9-hydroxyphenanthrene (9-OHPhe), and hydroxyphenanthrene (OHPhe) (P=0.005, P=0.049, and P=0.004, respectively), as well as elevated levels of plasma branched chain amino acid (BCAA) and aromatic amino acid (AAA) (P<0.05). After being adjusted for confounding factors, for every unit increase in lnv2-OHPhe in urine, the OR (95%CI) of MS was 1.57 (1.11, 2.26), and for every unit increase in lnvOHPhe, the OR (95%CI) of MS was 1.82 (1.16, 2.90). Tyrosine, leucine, and AAA all presented a significant nonlinear correlation with MS. At low levels, tyrosine, leucine, and AAA did not significantly increase the risk of MS, but at high levels, they increased the risk of MS. In the low amino acid concentration group, as well as in the low BCAA and low AAA concentration groups, it was found that compared to the PAH metabolite levels at the 50th percentile (P50), the log-odds of MS when the PAH metabolite levels was at the 75th percentile (P75) were 0.158 (95%CI: 0.150, 0.166), 0.218 (95%CI: 0.209, 0.227), and 0.262 (95% CI: 0.241, 0.282), respectively, However, no correlation between PAHs and MS was found in the high amino acid concentration group. Conclusion Amino acids modify the effect of PAHs exposure on the incidence of MS. In individuals with low plasma amino acid levels, the risk of developing MS increases with higher concentrations of mixed PAH exposure. This effect is partly due to the low concentrations of BCAA and AAA.
2.Ten-year real-world data analysis of clinical characteristics in treatment-naive patients with highly suspected prostate cancer and PSA level ≥20 ng/mL
Baolong PENG ; Mingzhe CHEN ; Junxin WANG ; Ranlu LIU ; Baojie MA ; Shanqi GUO ; Xingkang JIANG
Journal of Modern Urology 2025;30(1):13-21
[Objective] To analyze the clinicopathological characteristics of treatment-naive patients with highly suspected prostate cancer (PCa) with prostate-specific antigen (PSA) level ≥20 ng/mL, to provide reference for promoting early screening of PCa. [Methods] A retrospective analysis was conducted on the clinical data of treatment-naive patients with PSA level ≥20 ng/mL, undergoing prostate biopsy for highly suspected PCa at the Department of Urology, Tianjin Medical University Second Hospital during Jan.2013 and Jun.2023. The correlation between patients' age, body mass index (BMI), PSA, prostate volume (PV), prostate cancer-specific antigen density (PSAD), prostate imaging reporting and data system (PI-RADS) score, and International Society of Urological Pathology (ISUP) grade with highly suspected PCa metastasis and PSA stratification were analyzed. [Results] A total of 1778 suspected patients were enrolled. Pathological findings confirmed PCa in 1465 cases (82.4%), with 487(33.2%) diagnosed as metastatic PCa. Over the past decade, the number of patients undergoing prostate biopsy for highly suspected PCa and being confirmed has been increasing annually, with the proportion of metastatic cases remaining at around 30%. Compared with those with PSA level being 20-50 ng/mL, patients with PSA level >50 ng/mL had older age, lower BMI, higher PSAD, higher PI-RADS, higher ISUP, more diverse pathological types, and a higher incidence of metastasis (P<0.05) with lower proportion of urban residents. Additionally, analysis of metastatic PCa cases showed that 46.8%(228/487) had oligometastasis (≤5 metastatic lesions), including 99.0% bone metastasis, 4.1% extraregional lymph node metastasis, and 4.3% other organ metastasis. [Conclusion] Over the past 10 years, there has been a continuous increase in the number of treatment-naive biopsied cases and newly diagnosed cases of highly suspicious PCa with PSA level ≥20 ng/mL, while the proportion of metastatic cases remains high. Therefore, proactive efforts should be made to promote early screening of high-risk suspected cases.
3.Effect of enriched environment combined with acupuncture at head points on behavior in rats with autism spectrum disorder
Zichen MU ; Qiang TANG ; Yunqiu SHI ; Yan WANG ; Shuwei ZHU ; Ya'nan ZHUANG ; Danshuang XU ; Hongyu LI ; Baolong LI ; Chunyan ZHANG ; Mengke YUAN
Chinese Journal of Rehabilitation Theory and Practice 2024;30(2):176-182
ObjectiveTo observe the effect of enriched environment (EE) combined with acupuncture at head point (HA) on behavior in rats with autism spectrum disorder. MethodsHealthy female Wistar rats were given peritoneal injection of sodium valproate at 12.5 days of gestation. Twenty-four male offspring rats were randomly selected and then randomly divided into model group (n = 6), EE group (n = 6), HA group (n = 6) and EE combined with HA group (the combined group, n = 6). Six male offspring rats born from female mice injected with the same amount of saline intraperitoneally were as control group. After four weeks of treatment, all the five groups were tested with three-chamber test and marble burying test, and the sociability index, the social novelty index and the number of buried marbles were recorded. The levels of interleukin (IL)-1β and IL-6 in peripheral blood were determined by enzyme-linked immunosorbent assay (ELISA). ResultsAfter treatment, compared with the model group, the sociability index and the social novelty index improved (P < 0.05), the number of buried marbles reduced (P < 0.05), and the levels of IL-6 and IL-1β in peripheral blood decreased in EE group, HA group and the combined group (P < 0.05); while the combined group was the best (P < 0.01). ConclusionBoth EE or acupuncture at HA could improve behavioral symptoms, and reduce the expression of inflammatory factors in rats with autism spectrum disorder. The combination of the two methods showed the best result.
4.Apalutamide-induced severe agranulocytosis: a case report
Wei LIU ; Baolong PENG ; Junxin WANG ; Xingkang JIANG ; Ranlu LIU
Chinese Journal of Urology 2024;45(1):65-66
Adverse reactions commonly associated with apalutamide include hot flashes, fatigue, joint pain, rash, hypertension, and anemia. Apalutamide-induced agranulocytosis is relatively rare. In this paper, we reported a case with metastatic hormone-sensitive prostate cancer who developed agranulocytosis after taking apalutamide for one month. The patient’s neutrophil count returned to normal with appropriate supportive therapy, and no significant decrease in neutrophil count was observed during 10 months of follow-up after discharge.
5.Correlation of uric acid to HDL-C ratio with recurrence after radiofrequency ablation of atrial fibrillation
Acta Universitatis Medicinalis Anhui 2024;59(7):1269-1274
Objective To investigate the correlation between uric acid to high-density lipoprotein cholesterol ratio(UHR)and late recurrence after radiofrequency ablation in patients with non-valvular atrial fibrillation(AF).Methods The clinical data of 586 patients with non-valvular AF underwent catheter radiofrequency ablation for the first time from January 2018 to January 2022 were selected,and the study population was classified into a low-value group(n=196),a medium-value group(n=195),and a high-value group(n=195)according to the trichoto-mous method based on the UHR value,with late recurrence of AF as the endpoint event of the follow up.The gener-al data and laboratory indexes were compared among the three groups.Survival curves were estimated and plotted u-sing the Kaplan-Meier method.Multivariate COX regression analysis was used to evaluate the independent correla-tion between UHR and recurrence of AF after ablation,followed by subgroup analysis.Results Late recurrence of AF was documented in a total of 182(31.1%)patients during the follow-up time.The Kaplan-Meier survival curve showed a gradual decrease in the maintenance rate of sinus rhythm across the UHR low-value group,middle-value group,and high-value group(Log-rank test,P<0.001).In the fully-adjusted model,compared with the patients in the low-value group,the medium-value and high-value groups had a post-ablation late recurrence of AF with HR(95%CI,P)were 1.56(0.99-2.42,P=0.057)and 2.03(1.28-3.23,P=0.003),respectively.Subgroup a-nalysis showed that the association between UHR and late recurrence of AF after ablation was remarkable among pa-tients with aged≥60 years,BMI≥25 kg/m2,persistent AF,LAD≥4.3 cm,hypertension,without heart failure and without hyperlipidemia.Conclusion Higher UHR values in patients with non-valvular AF are independently asso-ciated with an increased risk of late recurrence of AF after radiofrequency ablation procedures.
6.Research advances in the degradation of hepatic lipid droplets through the autophagy pathway
Rongzhi WANG ; Linli WANG ; Jingwen JIAO ; Yunfei YU ; Baolong LI
Journal of Clinical Hepatology 2024;40(9):1916-1923
Autophagy is a highly conserved cellular degradation pathway that degrades lipid droplets through a process called"lipophagy".Lipophagy can selectively recognize lipid substances and degrade them,promoting β oxidation and thereby maintaining the balance of intracellular lipid metabolism.The liver regulates lipid droplet metabolism through lipophagy signaling pathways or key molecules,thereby alleviating hepatic steatosis and improving nonalcoholic fatty liver disease(NAFLD).This article reviews the latest advances in the degradation of hepatic lipid droplets through the three autophagic pathways of macroautophagy,molecular chaperone-mediated autophagy,and microautophagy.The major signaling pathways of AMPK/mTOR-ULK1,ATGL-SIRT1,FGF21-JMJD3,and Akt are involved in the regulation of the lipophagy process and help to maintain the homeostasis of lipid metabolism in the liver,so as to provide new ideas for clinical prevention and treatment of NAFLD.
7.Research on competency of traditional Chinese medicine rehabilitation based on WHO rehabilitation competency framework
Qiang TANG ; Shuang ZHENG ; Baolong LI ; Yan WANG ; Lei WANG ; Luwen ZHU
Chinese Journal of Rehabilitation Theory and Practice 2024;30(9):1018-1025
Objective To construct the competency of traditional Chinese medicine(TCM)rehabilitation based on World Health Or-ganization rehabilitation competency framework(RCF). Methods The competency requirements of TCM rehabilitation in higher TCM institutions were analyzed using RCF the-ory and method,through literature analysis and expert surveys, Results A comprehensive analysis was conducted to extract the practice,professionalism,learning and development,and research competency of TCM rehabilitation professionals,considering the characteristics of the educational envi-ronment in TCM institutions,the training orientation of TCM rehabilitation programs,core knowledge and ethi-cal requirements. Conclusion The adoption of the RCF to explore the competency of TCM rehabilitation professionals helps enhance the professionalism and applicability of the TCM rehabilitation field,providing ideas and methods for cultivating high-quality TCM rehabilitation professionals.
8.Retroperitoneal laparoscopic surgery of pediatric calyceal diverticulum: 2 cases report
Xinyan WANG ; Xin WANG ; Yong WU ; Dongzheng ZHANG ; Xiong MA ; Cong WANG ; Zhenhua ZHANG ; Yukun MA ; Baolong WEI ; Yong GUAN
Chinese Journal of Urology 2024;45(5):393-394
Pediatric calyceal diverticulum (CD) is a relatively rare entity. Fewer cases were reported in China treated by retroperitoneal laparoscoopic surgery in children. In this paper, 2 cases of children with CD admitted to our hospital were reported. CT urography showed cystic low-density mass without obvious enhancement, and delayed contrast agent was found to enter the lesion. Both cases underwent cystoscopy + retroperitoneoscopy + diverticular neck suture. They were followed up for 15 months and 9 months after the surgery, respectively, with favorable outcomes and no recurrence of CD.
9.Development and validation of a precision diagnostic nomogram models for prostate cancer in patients with mpMRI PI-RADS ≥3 and PSA 4-20 ng/ml
Junxin WANG ; Wei LIU ; Baolong PENG ; Dengwanyan YING ; Ranlu LIU ; Yuanjie NIU ; Yong XU
Chinese Journal of Urology 2024;45(6):424-433
Objective:Based on multi-parametric prostate magnetic resonance imaging (mpMRI) and related clinical indicators, a nomogram model for patients with PI-RADS ≥3 and PSA 4-20ng/ml was developed and validated, and the predictive value of the model in diagnosing clinically significant prostate cancer was evaluated.Methods:The clinical and pathological data of 865 patients who underwent ultrasound-guided transperineal prostate biopsy for the first time at the Department of Urology, Second Hospital of Tianjin Medical University from January 2020 to August 2023, with PI-RADS scores ≥3 and PSA levels between 4-20 ng/ml were retrospectively analyzed. These 865 patients were included in Cohort A, and from them, 437 patients with PHI were selected in Cohort B. In Cohort A, the median age was 68(64, 73); the median f/tPSA was 14.36 (10.63, 19.74); the median PSAD was 0.17(0.11, 0.25); 375 cases (43.35%) with PV≤50 ml and 490 cases (56.65%) with PV>50 ml; PSA fluctuation <-50% 84 cases (9.71%), -50%--20% in 206 cases (23.82%), and >-20% in 575 cases (66.47%); PI-RADS v2.1 3 scores 546 cases (63.12%), 4 in 230 cases (23.59%), and 5 in 89 cases (10.29%); localization of suspicious lesions on mpMRI in the peripheral zone in 619 cases (71.56%), transitional zone in 181 cases (20.92%), others in 42 cases (4.86%), and both peripheral and transitional zones in 23 cases (2.66%). In Cohort B, the median PSAD was 0.17 (0.12, 0.25); the median D-dimer was 310.00 (230.00, 411.48); the median PHI was 49.75 (35.90, 73.27); with 198 cases (45.31%) with PV≤50 ml and 239 cases (54.69%) with PV>50 ml; PSA fluctuation<-50% was in 40 cases (9.15%), -50%--20% in 107 cases (24.49%), and>-20% in 290 cases (66.39%); PI-RADS v2.1 scores 3 was in 289 cases (66.13%), 4 in 103 cases (23.57%), and 5 in 45 cases (10.30%).Patients in cohorts A and B were randomly assigned to the training set and validation set using R language with " 123" as the random number seed, at a ratio of 7∶3.There was no statistically significant difference between the clinical data of the training and validation sets for both groups ( P>0.05).Univariate and multivariate logistic regression analyses were used to identify independent risk factors for CsPCa, and a nomogram model was constructed using R. The diagnostic performance of the prediction model was evaluated using receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis(DCA).External validation of the model was conducted in the validation set. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy, and missed diagnosis rate analyses were performed on nomogram models A and B, as well as PSAD and PHI, under different thresholds. Results:Cohort A training set has 608 cases, and the validation set has 257 cases.The results of multivariate backward regression analysis in the training set show that age( OR=1.06, P=0.001), f/tPSA( OR=0.96, P=0.008), prostate volume (PV)>50ml( OR=0.36, P<0.01), prostate-specific antigen density(PSAD)( OR=145.19, P<0.01), PSA fluctuation(-50%--20%: OR=1.97, P=0.234; >-20%: OR=6.81, P<0.01), PI-RADS v2.1 score(4: OR=10.65, P<0.01; 5: OR=21.20, P<0.01), and localization of suspicious lesions on mpMRI(TZ: OR=0.57, P=0.074; Others: OR=0.26, P=0.022) were all risk factors for CsPCa. Nomogram A was developed based on these risk factors and had an area under the ROC curve (AUC) of 0.905 (95% CI 0.881-0.928) for the training set and 0.893 (95% CI 0.854-0.931) for the validation set. Cohort B training set developed based on age( OR=1.05, P=0.053), PV>50ml( OR=0.18, P<0.01), PSAD( OR=54.14, P=0.021), PSA fluctuation(-50%--20%: OR=4.78, P=0.100; >-20%: OR=20.37, P=0.001), PHI( OR=1.02, P=0.002), D-Dimer( OR=1.00, P=0.031), and PI-RADS scores(4: OR=11.35, P<0.01; 5: OR=57.61, P<0.01) as risk factors for CsPCa. Nomogram B had an AUC of 0.933(95% CI 0.906-0.959) for the training set and 0.908 (95% CI 0.859-0.958) for the validation set.The two nomogram models mentioned above both have excellent discrimination, and the calibration curves also indicated that the calibration of the two models were good.Moreover, both nomogram A and nomogram B demonstrate good clinical net benefits in the DCA curves of the training and validation sets, especially when applying nomogram B to predict CsPCa, with an accuracy rate of up to 85.82%. Conclusions:The two nomogram models developed in study, based on mpMRI and related clinical indicators, both have excellent predictive value for the diagnosis of clinically significant prostate cancer prior to prostate biopsy in patients with PI-RADS≥3 and PSA 4-20ng/ml.
10.Galangin alleviates inflammation in rat models with hepatitis B
Wei WANG ; Baolong MU ; Wenshuang ZHANG ; Qinglei WU ; Huihui ZHANG ; Zhili CAO
Basic & Clinical Medicine 2024;44(11):1551-1556
Objective To explore the effect of galangin(Gal)on inflammation in hepatitis B rats.Methods The rats were randomly divided into control group,hepatitis B group,Gal-L and Gal-H groups,positive drug lamivudine group and Gal-H+AMPK inhibitor(compound C)group with 12 in each.After modeling,medication treatment was performed once a day for 8 weeks.The level of alanine aminotransferase(ALT),total bilirubin(TBIL)and aspartate aminotransferase(AST)in the serum of rats were detected.HE staining microscopy was ap-plied to detect pathological changes in liver tissue.TUNEL staining microscopy was applied to detect cell apoptosis in liver tissue.Chromatin immuno-precipitation was applied to detect HBV viral load in liver tissue.ELISA was ap-plied to detect the levels of monocyte chemotactic protein-1(MCP-1),interleukin-12(IL-12),and tumor necrosis factor-α(TNF-α)in liver tissue.Western blot was applied to detect the expression of caspase-3,Bcl-2 associated X protein(Bax),p-AMPK and SIRT1 proteins in liver tissue.Results Compared with hepatitis B group,the liver damage of rats in the Gal-L group,Gal-H group and lamivudine group was alleviated;The level of serum AST,TBIL,and ALT,apoptosis rate,HBV viral load and the level of MCP-1,IL-12,TNF-α as well as the expression of caspase-3 and Bax proteins in liver tissue were all reduced.The expression of p-AMPK and SIRT1 proteins in liv-er tissue increased(P<0.05).Compound C baffled inhibitory effects of high-dose Gal on inflammation,cell apopto-sis,and HBV viral load in liver tissue of hepatitis B rats.Conclusions The mechanism of Gal in inhibiting inflam-mation,cell apoptosis and HBV virus replication in hepatitis B rats is potentially attributed to up-regulation of the AMPK/SIRT1 pathway.


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