1.Application value of blue-on-yellow perimetry combined with detection of macular ganglion cells inner plexiform layer in early diagnosis of open angle glaucoma
Leilei LIN ; Yu CHEN ; Nannan DONG
International Eye Science 2025;25(4):544-550
AIM: To analyze the value of blue-on-yellow perimetry(B/Y)combined with macular ganglion cells inner plexiform layer(GCIPL)detection in the early diagnosis of open angle glaucoma.METHODS: A prospective case-control study was conducted to collect 100 patients(174 eyes)from May 2023 to May 2024 in Eye Hospital of Wenzhou Medical University as the case group, and 20 healthy volunteers(40 eyes)as the control group. The case group was divided into high intraocular pressure group, suspected glaucoma group, and early glaucoma group based on the examination results. All study subjects underwent comprehensive ophthalmic examination, white-on-white perimetry(W/W)and B/Y examination, and swept source optical coherence tomography(SS-OCT)was used to scan the optic disc and macula to obtain relevant parameters. The value of B/Y combined with macular GCIPL in the diagnosis of open angle glaucoma was analyzed.RESULTS: In the case group, 30 cases(52 eyes)were diagnosed with early primary open angle glaucoma, 46 cases(82 eyes)were suspected of open angle glaucoma, and 24 cases(40 eyes)were diagnosed with high intraocular pressure. The W/W mean defect(MD)and B/Y-MD values in the early glaucoma group were lower than those in the control group, high intraocular pressure group, and suspected glaucoma group. The W/W pattern standard deviation(PSD)and B/Y-PSD values were higher than those in the control group, high intraocular pressure group, and suspected glaucoma group(all P<0.05). The W/W-MD and B/Y-MD values in the suspected glaucoma group were lower than those in the control group and the high intraocular pressure group(all P<0.05). The B/Y-MD values in the high intraocular pressure group were lower than those in the control group(P<0.05). The parameters of GCIPL in the macular area of the early glaucoma group were lower than those of the control group, high intraocular pressure group, and suspected glaucoma group(all P<0.05). The minimum GCIPL in the macular area of the suspected glaucoma group, as well as the upper and lower temporal areas, were lower than those of the control group and the high intraocular pressure group(all P<0.05). The average, upper, lower, temporal, 5:00, 6:00, and 12:00 positions of the retinal nerve fiber layer(RNFL)parameters around the optic disc in the early glaucoma group were lower than those in the control group, high intraocular pressure group, and suspected glaucoma group(all P<0.05). The average and upper RNFL parameters in the suspected glaucoma group were lower than those in the control group and high intraocular pressure group. The rim area of the optic nerve head(ONH)parameters in the early glaucoma group was smaller than that in the control group, high intraocular pressure group, and suspected glaucoma group, while the horizontal and vertical cup-to-disc ratio was higher than those in the control group, high intraocular pressure group, and suspected glaucoma group; the rim area of the suspected glaucoma group was smaller than that of the control group and high intraocular pressure group, and the horizontal and vertical cup-to-disc ratio were higher than those of the control group and high intraocular pressure group(all P<0.05). Receiver operating characteristic(ROC)curve was drawn, and the results showed that visual field parameters, macular GCIPL parameters, and RNFL parameters had certain diagnosibility for early open angle glaucoma and suspected glaucoma. Decision curve was drawn, and the results showed that when the threshold was between 0 and 1.0, the net return rate of diagnosing early open angle glaucoma with the combination of B/Y and macular GCIPL parameters was higher than the individual diagnostic efficacy of each indicator.CONCLUSION: The combination of B/Y and macular GCIPL detection can be an important means for the early diagnosis of glaucoma.
2.Changes of retinal structure and function before and after panretinal photocoagulation in patients with proliferative diabetic retinopathy
Nannan DONG ; Liqing WEI ; Yu CHEN ; Jiapeng WANG ; Leilei LIN
International Eye Science 2025;25(5):718-724
AIM: To analyze the changes of retinal structure and function before and after panretinal photocoagulation(PRP)in patients with proliferative diabetic retinopathy(PDR).METHODS: Prospective study. Totally 98 cases(98 eyes)of PDR patients who underwent PRP in Eye Hospital of Wenzhou Medical University from January 2022 to May 2023 were included. Optical coherence tomography angiography(OCTA)was used to detect central retinal thickness(CRT), central macular thickness(CMT), subfoveal choroidal thickness(SFCT), foveal avascular zone(FAZ), deep vascular complex(DVC)blood flow density, superficial vascular complex(SVC)blood flow density before and at 1 wk, 1 and 3 mo after PRP. During the follow-up, 1 eye underwent vitrectomy, 2 eyes were lost to follow-up, and finally 95 eyes completed 1 a follow-up, with a loss rate of 3%. According to the visual prognosis at 1 a after treatment, the patients were divided into two groups: 73 eyes in good prognosis group and 22 eyes in poor prognosis group(including 9 eyes of visual disability and 13 eyes of visual regression). The changes in retinal structure and function before and after PRP treatment were compared between the two groups of patients, and the receiver operating characteristic(ROC)curve and decision curve were used to analyze the predictive value of retinal structure and function for PDR treatment.RESULTS: There were statistical significant differences in PDR staging, CRT, CMT, SFCT, DVC blood flow density, and SVC blood flow density between the two groups of patients before treatment(all P<0.05). At 1 wk, 1 and 3 mo after treatment, the FAZ area of both groups decreased compared to before treatment, while the blood flow density of DVC and SVC increased compared to before treatment(both P<0.05). However, there was no significant difference in the blood flow density of FAZ, DVC, and SVC between the two groups at 1 wk, 1 and 3 mo after treatment(all P>0.05). The CRT, CMT and SFCT of the two groups at 1 wk after treatment were higher than those before treatment(all P<0.05), but there were no significant differences between the two groups(all P>0.05). The CRT, CMT and SFCT at 1 and 3 mo after treatment were lower than those at 1 wk after treatment and before treatment in both groups. The CRT, CMT and SFCT in the poor prognosis group at 3 mo after treatment were higher than those at 1 mo after treatment, and were higher than those in the good prognosis group(all P<0.05). ROC analysis showed that, at 3 mo after laser treatment in PDR patients, the area under the curve of the CRT, CMT, and SFCT alone or in combination after treatment for 1 a was 0.788, 0.781, 0.783, and 0.902, respectively, and the combined prediction value was better(P<0.05). Decision curve analysis showed that the combined detection of CRT, CMT, and SFCT in PDR patients at 3 mo after treatment can improve the predictive value of visual prognosis.CONCLUSION: The optimal time for retinal structure and function recovery in PDR patients after PRP treatment is between 1 wk and 1 mo. OCTA measurement of CRT, CMT, and SFCT at 3 mo after treatment can predict the visual prognosis during the 1 a treatment period.
3.Research progress of TACAN's involvement in orthodontic mechanical pain modulation
Siyi XU ; Zhenze YANG ; Leilei XUE ; Yezi QI ; Jun LIN
STOMATOLOGY 2024;44(7):540-544
Orthodontic treatment mainly improves oral function and achieves treatment goals by applying mechanical force to the jaw-bone and teeth.However,oral pain is the most common symptom experienced by patients during the diagnosis and treatment process.It is usually caused by sustained application of orthodontic mechanical force,but its mechanism is not fully understood,posing a signifi-cant clinical challenge.In recent years,a protein called TACAN has been discovered to play a crucial regulatory role in the occurrence and development of pain,offering a potential therapeutic target for addressing mechanical pain in the future.Since research on TACAN is still unclear,its specific mechanism requires further elucidation and verification.This article systematically reviews the research pro-gress of TACAN's involvement in the modulation of mechanical pain,summarizes the specific functions of TACAN,and provides new perspectives for further research on TACAN.
4.Therapeutic effects of tofacitinib on steroid-resistant immune checkpoint inhibitor-associated myocarditis
Yuchen XU ; Jian ZHANG ; Yan WANG ; Jinyi LIN ; Yuhong ZHOU ; Leilei CHENG ; Junbo GE
China Oncology 2024;34(4):400-408
Background and purpose:Outcomes for cancer patients with steroid-resistant immune checkpoint inhibitor-associated myocarditis(srICIAM)are poor.Intensified immunosuppressive therapies,including tofacitinib,a novel Janus kinase(JAK)inhibitor,may have some therapeutic benefits.However,due to the lack of sufficient clinical data,the effectiveness of such treatments and their impact on cardiovascular outcomes remain unclear.This study aimed to investigate the therapeutic effect of tofacitinib on srICIAM.Methods:This retrospective case-control study included 36 malignant tumor patients who received immune checkpoint inhibitor treatment at Zhongshan Hospital affiliated to Fudan University from July 2019 to May 2022 and developed srICIAM.Patients receiving corticosteroids in combination with tofacitinib were assigned to the tofacitinib group(n=19),while those not treated with tofacitinib were allocated to the control group(n=17).The study compared clinical characteristics,laboratory findings,and imaging results between the two groups.Additionally,follow-up was conducted to monitor the incidence of cardiovascular endpoints in these patients.The research plan was approved by the Ethics Committee of Zhongshan Hospital Affiliated to Fudan University(Approval Number:B2021-275R).This study was conducted in accordance with the ethical guidelines of the Helsinki Declaration.Results:Compared to the control group,and with no significant difference in the cumulative dose and duration of corticosteroids(P<0.05),the tofacitinib group showed a shorter myocarditis recovery time(median recovery time:86.5 days vs 126.5 days,P=0.021).The myocarditis-related mortality rate was significantly lower in the tofacitinib group than in the control group(5%vs 35%,P=0.025).Conclusion:Tofacitinib may reduce mortality and promote cardiac recovery in srICIAM patients without impeding the anti-tumor effect.It may become one of the potential treatment strategies in the future.
5.Characteristics of Cerebral Blood Flow in Sleep Deprivation Based on Arterial Spin Labeling
Xiaolei WANG ; Leilei LI ; Bo HAN ; Zeheng SUN ; Keke XIN ; Gang LIN ; Rong ZHANG ; Yuanqiang ZHU ; Yani BAI
Chinese Journal of Medical Imaging 2024;32(7):653-658
Purpose To investigate the difference of cerebral blood flow between sleep deprivation and rest wakefulness.Materials and Methods Fifty subjects were recruited from universities in Xi'an from October 2020 to December 2021.The psychomotor vigilance test(PVT)task was used to measure sustained attention.Arterial spin labeling technique was used to analyze and compare the relative cerebral blood flow(rCBF)between sleep deprivation and rest wakefulness.The correlation between altered rCBF of specific brain regions and PVT task performance after sleep deprivation was analyzed.Results Compared with rest wakefulness,rCBF in bilateral dorsolateral prefrontal lobe,bilateral parietal lobule,left orbital middle frontal gyrus,bilateral middle temporal gyrus,right posterior central gyrus,and bilateral angular gyrus was significantly decreased after sleep deprivation.The rCBF of bilateral thalamus,left precuneus,right medial prefrontal lobe,left posterior cingulate gyrus,and left inferior temporal gyrus was significantly increased(FDR corrected,P<0.05,cluster size≥20 voxels).The changes of rCBF in left dorsolateral prefrontal lobe and right parietal lobule were significantly negatively correlated with the PVT task performance(r=-0.56,P<0.001;r=-0.64,P<0.001),and the change of rCBF of left precuneus was significantly positively correlated with the PVT task performance(r=0.72,P<0.001).Conclusion The abnormal changes of CBF in default mode network,frontoparietal network-related brain regions and thalamic may be the important neural mechanism of sustained attentional decline after sleep deprivation.
6.PRMT6 promotes tumorigenicity and cisplatin response of lung cancer through triggering 6PGD/ENO1 mediated cell metabolism.
Mingming SUN ; Leilei LI ; Yujia NIU ; Yingzhi WANG ; Qi YAN ; Fei XIE ; Yaya QIAO ; Jiaqi SONG ; Huanran SUN ; Zhen LI ; Sizhen LAI ; Hongkai CHANG ; Han ZHANG ; Jiyan WANG ; Chenxin YANG ; Huifang ZHAO ; Junzhen TAN ; Yanping LI ; Shuangping LIU ; Bin LU ; Min LIU ; Guangyao KONG ; Yujun ZHAO ; Chunze ZHANG ; Shu-Hai LIN ; Cheng LUO ; Shuai ZHANG ; Changliang SHAN
Acta Pharmaceutica Sinica B 2023;13(1):157-173
Metabolic reprogramming is a hallmark of cancer, including lung cancer. However, the exact underlying mechanism and therapeutic potential are largely unknown. Here we report that protein arginine methyltransferase 6 (PRMT6) is highly expressed in lung cancer and is required for cell metabolism, tumorigenicity, and cisplatin response of lung cancer. PRMT6 regulated the oxidative pentose phosphate pathway (PPP) flux and glycolysis pathway in human lung cancer by increasing the activity of 6-phospho-gluconate dehydrogenase (6PGD) and α-enolase (ENO1). Furthermore, PRMT6 methylated R324 of 6PGD to enhancing its activity; while methylation at R9 and R372 of ENO1 promotes formation of active ENO1 dimers and 2-phosphoglycerate (2-PG) binding to ENO1, respectively. Lastly, targeting PRMT6 blocked the oxidative PPP flux, glycolysis pathway, and tumor growth, as well as enhanced the anti-tumor effects of cisplatin in lung cancer. Together, this study demonstrates that PRMT6 acts as a post-translational modification (PTM) regulator of glucose metabolism, which leads to the pathogenesis of lung cancer. It was proven that the PRMT6-6PGD/ENO1 regulatory axis is an important determinant of carcinogenesis and may become a promising cancer therapeutic strategy.
7.Relationship between self-perceptions of aging and cognitive function in community elderly: the mediating and moderating effects of loneliness
Hong SUN ; Jianing MA ; Lin ZHANG ; Lingdi MENG ; Leilei GUO
Chinese Journal of Behavioral Medicine and Brain Science 2023;32(1):68-74
Objective:To explore the relationship between self-perceptions of aging and cognitive function, and the mediating and moderating effect of loneliness among them.Methods:A multi-stage stratified sampling was conducted in Jinzhou from September to November 2021, and 318 community-based elderly were included.General data questionnaire, the brief ageing perceptions questionnaire (BAPQ), UCLA loneliness scale(UCLA-LS) and mini-mental state examination (MMSE) were applied to all subjects.IBM SPSS 25.0 software was used to conduct independent sample t-test, analysis of variance and Pearson correlation analysis, and Bootstrap program of AMOS 22.0 was used to analyze the mediation effect.The model in SPSSAU on-line analysis program was used to test the moderating effect. Results:The average scores of self-perceptions of aging, loneliness and cognitive function were (44.85±12.48), (41.70±8.73) and (24.87±3.40) respectively.And 65 of 318 subjects had cognitive impairment, and the detection rate was 20.44%(65/318). Self-perceptions of aging, loneliness and cognitive function scores were significantly correlated between each other(all P<0.05). Self-perceptions of aging had a negative effect on cognitive function ( β=-0.467, P<0.01). Self-perceptions of aging had a positive effect on loneliness ( β=0.585, P<0.01). Loneliness had a negative effect on cognitive function ( β=-0.234, P<0.01). The indirect standardization effect of loneliness between self-perceptions of aging and cognitive function was -0.137, and the mediating effect accounted for 22.68% of the total effect.Loneliness played a moderating role between self-perceptions of aging and cognitive function ( β=-0.114, t=-2.26, P=0.025). Conclusion:Self-perceptions of aging and loneliness can predict the cognitive function in the elderly, and loneliness plays a mediating role between self-perceptions of aging and cognitive function.Early detection of negative senility emotion and loneliness of the elderly will play a positive role in preventing the occurrence of cognitive impairment.
8.Construction and application of an intelligent injury monitoring system in Yinzhou District
LI Xiaoyong ; DUAN Leilei ; WU Yiqun ; ZHONG Jieming ; LIN Hongbo ; SHEN Peng ; ZHAO Lei
Journal of Preventive Medicine 2023;35(11):1009-1012
Injury monitoring is an important approach for injury control and is an important part of comprehensive disease monitoring. With the development of medical digitalization, an intelligent injury monitoring system has been created in Yinzhou District, Ningbo City, Zhejiang Province using artificial intelligence techniques based on Ningbo Municipal Health Information Platform and has been applied across the district since 2019. The manual card-reporting mode has been transformed to intelligent card-reporting mode in this system, which achieves functions of epidemiological analyses of the monitoring data, early warning of high-incidence injuries, classified management of injury and quality control of report cards. Nearly 300 thousand cards have been automatically reported since the system was online available since November 2022, and the epidemiological characteristics of injury were preliminarily understood, which provide data supports to early earning and interventions of injury. The intelligent injury monitoring system greatly improves the injury monitoring efficiency and card-reporting quality, and saves a large number of manpower and material resources, which provides a powerful technical support to widespread injury monitoring.
9.Calcium Homeostasis in Parkinson's Disease: From Pathology to Treatment.
Jingxian ZHANG ; Qingqing SHEN ; Yue MA ; Lin LIU ; Wenting JIA ; Leilei CHEN ; Junxia XIE
Neuroscience Bulletin 2022;38(10):1267-1270
10.Comparative study of white matter diffusion properties in vulnerable and resistant individuals to continuous attention after short term sleep deprivation
Chen WANG ; Lin WU ; Xing TANG ; Xiuhua LYU ; Junqiang ZHU ; Qingling YANG ; Peng FANG ; Ziliang XU ; Yongqiang XU ; Leilei LI ; Yuanqiang ZHU ; Minwen ZHENG
Chinese Journal of Behavioral Medicine and Brain Science 2022;31(4):326-332
Objective:To investigate the differences of white matter diffusion properties between vulnerable and resistant individuals to continuous attention after sleep deprivation.Methods:According to the psychomotor vigilance test performance before and after sleep deprivation, the participants were divided into the vulnerable group( n=24) and resistant group( n=25). All participants underwent diffusion tensor imaging (DTI) scans.Tract based spatial statistics(TBSS) was used to compare fractional anisotropy(FA), mean diffusivity(MD), axial diffusivity(AD), radial diffusivity(RD) maps between the two groups.Spearman correlation analysis was conducted by SPSS 24.0 to investigate the relationships between the altered DTI metrics and PVT task performance. Results:(1) Compared with resistant group, FA value of vulnerable group decreased in the body of corpus callosum(x, y, z=-8, 9, 25, t=-7.855), right superior longitudinal fasciculus(x, y, z=-39, -7, 26, t=-6.252), bilateral anterior limb of internal capsule(x, y, z=-13, 8, 13, t=-5.235; x, y, z=12, 8, 3, t=-5.024) and right posterior thalamic radiation(x, y, z=-26, -56, 17, t=-5.469)(TFCE corrected, P<0.05, cluster size≥50 voxel). (2) Compared with resistant group, MD value of vulnerable group increased in the body of corpus callosum(x, y, z=-3, -6, 26, t=7.613), right superior longitudinal fasciculus(x, y, z=-31, -19, 38, t=5.314), bilateral anterior limb of internal capsule(x, y, z=-16, 7, 8, t=6.898; x, y, z=15, 5, 7, t=6.652), splenium of corpus callosum(x, y, z=27, -53, 17, t=6.541), and AD value increased in the right superior longitudinal fasciculus(x, y, z=-33, -19, 39, t=4.892), splenium of corpus callosum(x, y, z=-22, -49, 21, t=5.450), genu of corpus callosum(x, y, z=4, 26, 0, t=4.332), as well as RD value increased in the right superior corona radiata(x, y, z=-17, 1, 33, t=7.558), body of corpus callosum(x, y, z=4, -8, 26, t=6.699), right anterior limb of internal capsule(x, y, z=-12, 7, 3, t=5.212) (TFCE corrected, P<0.05, cluster size≥50 voxel). (3) Correlational analysis revealed that the negative correlations were found between PVT task performance and the FA value in the right superior longitudinal fasciculus( r=-0.492, P<0.001), right anterior limb of internal capsule( r=-0.510, P<0.001), right posterior thalamic radiation( r=-0.502, P<0.001) and body of corpus callosum( r=-0.464, P<0.001). The positive correlations were found between PVT task performance and the MD value in the body of corpus callosum( r=0.500, P<0.001), right superior longitudinal fasciculus( r=0.499, P<0.001), splenium of corpus callosum( r=0.462, P<0.001), right anterior limb of internal capsule( r=0.471, P<0.001), and AD value in right superior longitudinal fasciculus( r=0.643, P<0.001), as well as RD value in right superior corona radiate( r=0.498, P<0.001) (Bonferroni corrected, P<0.003). Conclusion:Differences in the microstructural characteristics of white matter fiber tracts in specific brain regions may constitute the potential neuropathological basis for the phenotypes of vulnerable and resistant individuals to continuous attention after sleep deprivation.


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