1.Relationship between serum TMAO,Endocan and cardiac function and pregnancy outcome in patients with hypertensive disorders of pregnancy
Xingxing ZHANG ; Xijing TAO ; Caihong LIU ; Xiao LI ; Panpan WU ; Cuier HAN
International Journal of Laboratory Medicine 2025;46(1):75-80
Objective To investigate the relationship between serum trimethylamine oxide(TMAO),endo-thelial cell specific molecule 1(Endocan)and cardiac function and pregnancy outcome in patients with hyper-tensive disorders of pregnancy(HDP).Methods A total of 182 patients with HDP admitted to Handan Ma-ternal and Child Health Hospital from January 2021 to June 2023(HDP group)and 98 healthy pregnant women admitted to this hospital during the same period(control group)were selected as research subjects.Serum TMAO,Endocan and left ventricular cardiac function indexes[left ventricular ejection fraction(LVEF),left ventricular end-diastolic volume(LVEDV)and left ventricular end-systolic volume(LVESV)]were compared between the two groups.According to pregnancy outcome,HDP patients were divided into poor outcome group(78 cases)and good outcome group(104 cases).Spearman correlation analysis was used to analyze the correlation between serum TMAO and Endocan and cardiac function indexes in HDP patients,and multi-factor Logistic regression was used to analyze the influencing factors of adverse pregnancy outcomes in HDP patients.The predictive value of serum TMAO and Endocan for adverse pregnancy outcomes in HDP patients was analyzed by receiver operating characteristic(ROC)curve.Results Compared with control group,serum TMAO,Endocan,LVEDV and LVESV were increased in HDP group,and LVEF was decreased(P<0.05).Serum TMAO and Endocan in HDP patients were negatively correlated with LVEF(P<0.05),and positively correlated with LVEDV and LVESV(P<0.05).The incidence of adverse pregnancy outcomes in 182 HDP patients was 42.86%(78/182).Preeclampsia(PE),severe preeclampsia(SPE),24 h urine protein increase,LVEDV increase,LVESV increase,TMAO increase,Endocan increase were independent risk factors for adverse pregnancy outcomes in HDP patients,and LVEF increase was protective factor(P<0.05).The area under the curve of serum TMAO combined with Endocan in predicting adverse pregnancy outcomes in HDP patients was 0.880,which was greater than 0.793 and 0.788 predicted by serum TMAO and Endocan a-lone.Conclusion The increase of serum TMAO and Endocan levels in HDP patients are relate to the decrease of cardiac function and adverse pregnancy outcomes,and the combined detection of the two has high predictive value for adverse pregnancy outcomes in HDP patients.
2.Expression levels of PGC-1β,HIF-1α,and RETN in gouty arthritis and their correlation with the degree of joint damage
Aijuan SHEN ; Tie LIU ; Panpan DING ; Jingyu WANG ; Shuo ZHANG ; Weiwei LU
International Journal of Laboratory Medicine 2025;46(9):1071-1076
Objective To investigate the expression levels of peroxisome proliferator-activated receptor gamma coactivator-1β(PGC-1β),hypoxia-inducible factor-1α(HIF-1α),and resistin(RETN)in gouty arthri-tis(GA),and analyze their correlation with the degree of joint damage.Methods A total of 134 patients with GA in the hospital from January 2022 to October 2023 were selected as GA group,and 134 healthy people who underwent the physical examination in the same period were selected as control group.The serum expression levels of PGC-1β,HIF-1α and Retn were compared between the two groups.The expression levels of PGC-1β,HIF-1α and Retn in serum and synovial fluid of patients with different clinical characteristics in GA group were compared,the degree of joint destruction was graded according to the subjective pain grading method(VAS)and the patients were divided into a severe GA subgroup of 78 cases and a mild GA subgroup of 56 ca-ses.The expression levels of PGC-1β,HIF-1α,RETN,bone destruction factors[β-cross linked degradation products(β-CTX),tartrate resistant acid phosphatase-5b(TRACP5b),receptor activator of nuclear factor kappa B ligand(RANKL)]and inflammatory factors[tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β)]were compared among different degrees of joint destruction,and the correlation between serum and syno-vial fluid PGC-1β,HIF-1α,RETN and the degree of joint destruction,bone destruction factors,and inflamma-tory factors was analyzed.Results The expression level of PGC-1β in serum of GA group was lower than that of the control group,while the expression levels of HIF-1α and RETN in serum were higher than those of the control group(P<0.05).There were statistically significant differences in serum and synovial fluid PGC-1β,HIF-1α,and RETN levels among GA patients with different clinical stages,affected joints,disease duration,and annual seizure frequency(P<0.05).The expression levels of PGC-1β in the serum and synovial fluid of the severe GA subgroup were lower than those of the mild GA subgroup(P<0.05),while the expression lev-els of HIF-1α and RETN were higher than those of the mild GA subgroup(P<0.05).The expression levels ofβ-CTX and TRACP5b in the severe GA subgroup were higher than those in the mild GA subgroup(P<0.05),while the expression level of RANKL was lower than that in the mild GA subgroup(P<0.05).PGC-1βin serum and synovial fluid was negatively correlated with the degree of joint destruction,β-CTX,TRACP5b,TNF-α,and IL-1β,and positively correlated with RANKL.HIF-1α and RETN were positively correlated with the degree of joint destruction,β-CTX,TRACP5b,TNF-α,and IL-1β,and negatively correlated with RANKL.Conclusion PGC-1β,HIF-1α,and RETN are abnormally expressed in patients with GA,and are closely associ-ated with the degree of joint destruction,bone destruction factors,and inflammatory factors.They are expec-ted to become reliable indicators for evaluating the occurrence and progression of GA.
3.Relationship between serum PSG1,Sestrin 2,Gas6 and uterine artery blood flow parameters and fetal growth restriction in patients with gestational hypertension
Xingxing ZHANG ; Xijing TAO ; Caihong LIU ; Xiao LI ; Panpan WU ; Cui'e HAN
International Journal of Laboratory Medicine 2025;46(12):1472-1478
Objective To explore the relationship between serum pregnancy-specific protein 1(PSG1),stress-induced protein 2(Sestrin 2),growth arrest-specific protein 6(Gas6)and uterine artery blood flow pa-rameters and fetal growth restriction(FGR)in patients with gestational hypertension(GH).Methods A to-tal of 485 GH patients admitted to Handan Maternal and Child Health Hospital from January 2020 to October 2023 were selected as the research objects and divided into the occurrence group(81 cases)and the non-occur-rence group according to whether FGR occurred.The correlations between serum PSG1,Sestrin 2,Gas6 and uterine artery blood flow parameters[pulse index(PI),resistance index(RI),ratio of peak systolic velocity to end diastolic velocity(S/D)]was analysed,as well as the related influencing factors of FGR in GH patients.In addition,a Nomogram model based on the influencing factors was constructed to analyze the predictive value.Results The serum PSG1 level in occurrence group was significantly lower than that in non-occurrence group,and the serum Sestrin 2,Gas6 levels and PI,RI,S/D values were significantly higher than those in non-occurrence group(P<0.05).Pearson correlation results showed that serum PSG1 was negatively correlated with the uterine artery blood flow parameters PI,RI,and S/D,and the levels of serum Sestrin 2 and Gas6 were positively correlated with the uterine artery blood flow parameters PI,RI,and S/D(P<0.05).Gestational di-abetes mellitus,umbilical cord abnormalities,high Sestrin 2,high Gas6,high PI,high RI,and high S/D were independent risk factors for the occurrence of FGR in GH patients(P<0.05),and increased PSG1 level was protective factor for the occurrence of FGR in GH patients(P<0.05).Receiver operating characteristic(ROC)curve analysis showed that the area under the curve(AUC)of the Nomogram prediction model con-structed based on the influencing factors for predicting the occurrence of FGR in GH patients was 0.982,and the sensitivity and specificity were 0.943 and 0.938,respectively.The internal verification of the Bootstrap method shows that the Bias-corrected prediction curve basically coincides with the Ideal line,and the consis-tency index(C-index)was 0.964,indicating that the model was relatively stable.The decision curve shows that the threshold probability of this model was 0.01-1.00 and the net return rate was above 0.Conclusion Ser-um PSG1,Sestrin 2 and Gas6 in GH patients are closely related to uterine artery blood flow parameters and FGR,and the three are the influencing factors for the occurrence of FGR in GH patients.The constructed No-mogram model has a good predictive efficacy for FGR.
4.HOCPCA Exerts Neuroprotection on Retinal Ganglion Cells by Binding to CaMKIIα and Modulating Oxidative Stress and Neuroinflammation in Experimental Glaucoma.
Panpan LI ; Xin SHI ; Hanhan LIU ; Yuan FENG ; Xiaosha WANG ; Marc HERB ; Haichao JI ; Stefan WAGNER ; Johannes VOGT ; Verena PROKOSCH
Neuroscience Bulletin 2025;41(8):1329-1346
Neuronal injury in glaucoma persists despite effective intraocular pressure (IOP) control, necessitating neuroprotective strategies for retinal ganglion cells (RGCs). In this study, we investigated the neuroprotective role of the γ-hydroxybutyrate analog HOCPCA in a glaucoma model, focusing on its effects on CaMKII signaling, oxidative stress, and neuroinflammatory responses. Retinal tissue from high IOP animal models was analyzed via proteomics. In vitro mouse retinal explants were subjected to elevated pressure and oxidative stress, followed by HOCPCA treatment. HOCPCA significantly mitigated the RGC loss induced by oxidative stress and elevated pressure, preserving neuronal function. It restored CaMKIIα and β levels, preserving RGC integrity, while also modulating oxidative stress and neuroinflammatory responses. These findings suggest that HOCPCA, through its interaction with CaMKII, holds promise as a neuroprotective therapy for glaucoma.
Animals
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Retinal Ganglion Cells/metabolism*
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Glaucoma/pathology*
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Oxidative Stress/drug effects*
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Neuroprotective Agents/pharmacology*
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Mice
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Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism*
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Mice, Inbred C57BL
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Disease Models, Animal
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Neuroinflammatory Diseases/drug therapy*
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Neuroprotection/drug effects*
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Male
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Intraocular Pressure/drug effects*
5.Early prediction and warning of MODS following major trauma via identification of cytokine storm: A prospective cohort study.
Panpan CHANG ; Rui LI ; Jiahe WEN ; Guanjun LIU ; Feifei JIN ; Yongpei YU ; Yongzheng LI ; Guang ZHANG ; Tianbing WANG
Chinese Journal of Traumatology 2025;28(6):391-398
PURPOSE:
Early mortality in major trauma has decreased, but MODS remains a leading cause of poor outcomes, driven by trauma-induced cytokine storms that exacerbate injuries and organ damage.
METHODS:
This prospective cohort study included 79 major trauma patients (ISS >15) treated in the National Center for Trauma Medicine, Peking University People's Hospital, from September 1, 2021, to July 31, 2023. Patients (1) with ISS >15 (according to AIS 2015), (2) aged 15-80 years, (3) admitted within 6 h of injury, (4) having no prior treatment before admission, were included. Exclusion criteria were (1) GCS score <9 or AIS score ≥3 for TBI, (2) confirmed infection, infectious disease, or high infection risk, (3) pregnancy, (4) severe primary diseases affecting survival, (5) recent use of immunosuppressive or cytotoxic drugs within the past 6 months, (6) psychiatric patients, (7) participation in other clinical trials within the past 30 days, (8) patients with incomplete data or missing blood samples. Admission serum inflammatory cytokines and pathophysiological data were analyzed to develop machine learning models predicting MODS within 7 days. LR, DR, RF, SVM, NB, and XGBoost were evaluated based on the area under the AUROC. The SHAP method was used to interpret results.
RESULTS:
This study enrolled 79 patients with major trauma, and the median (Q1, Q3) age was 51 (35, 59) years (52 males, 65.8%). The inflammatory cytokine data were collected for all participants. Among these patients, 35 (44.3%) developed MODS, and 44 (55.7%) did not. Additionally, 2 patients (2.5%) from the MODS group succumbed. The logistic regression model showed strong performance in predicting MODS. Ten key cytokines, IL-18, Eotaxin, MCP-4, IP-10, CXCL12, MIP-3α, MCP-1, IL-1RA, Cystatin C, and MRP8/14 were identified as critical to the trauma-induced cytokine storm and MODS development. Early elevation of these cytokines achieved high predictive accuracy, with an AUROC of 0.887 (95% CI 0.813-0.976).
CONCLUSION
Trauma-induced cytokine storms are strongly associated with MODS. Early identification of inflammatory cytokine changes enables better prediction and timely interventions to improve outcomes.
Humans
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Prospective Studies
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Middle Aged
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Male
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Female
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Adult
;
Aged
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Cytokine Release Syndrome/etiology*
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Adolescent
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Young Adult
;
Aged, 80 and over
;
Wounds and Injuries/complications*
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Cytokines/blood*
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Multiple Organ Failure/diagnosis*
;
Machine Learning
6.Meta-Synthesis of qualitative researches on women' experiences of emergency cesarean sections
Panpan ZHANG ; Yingying TIAN ; Yaping YUAN ; Jianhai YU ; Haoxin LIU ; Xiaohua CUI
Chinese Journal of Modern Nursing 2025;31(33):4481-4488
Objective:To systematically synthesize the real experiences of women who have undergone emergency cesarean sections, providing evidence-based insights to inform the development of personalized care strategies.Methods:A comprehensive literature search was conducted across PubMed, Web of Science, Embase, CINAHL, Cochrane Library, PsycINFO, ProQuest, China National Knowledge Infrastructure, Wanfang Data, VIP, and China Biology Medicine disc for qualitative and mixed-methods studies related to the psychological experiences of women who underwent emergency cesarean sections. The search covered all publications up to January 31, 2025. The methodological quality of included studies was appraised using the Joanna Briggs Institute Center for Evidence-Based Health Care Quality Assessment Criteria for Qualitative Research. The results were integrated using an aggregative synthesis approach.Results:A total of 16 studies were included, from which 78 findings were extracted and grouped into nine new categories. These were further synthesized into three overarching themes: shift in birth plan and emergence of dynamic emotional responses; desire for diversified external support and encouragement; emotional investment and character growth.Conclusions:Women undergoing emergency cesarean sections commonly experience intense negative emotions. It is essential for healthcare providers and family members to pay close attention to the physical and psychological well-being of postpartum women, offer timely emotional support, and help them recover from psychological trauma, thereby promoting maternal mental and physical health.
7.Clinical efficacy of caragliflozin and empagliflozin in obese patients with type 2 diabetes mellitus
Limei HU ; Huiying LIU ; Yaru CHEN ; Panpan ZHAO ; Jun GU ; Weidong REN
Tianjin Medical Journal 2025;53(10):1071-1076
Objective To analyze effects of caragliflozin and empagliflozin on inflammatory markers,glucose and lipid metabolism and miR-144 expression in obese patients with type 2 diabetes mellitus(T2DM).Methods A total of 148 obese T2DM patients admitted to our hospital from June 2021 to May 2024 were selected and divided into the caragliflozin group and the empagliflozin group by random number table method.The two groups were treated with canagliflozin and empagliflozin on the basis of conventional treatment for 6 months.The inflammatory indicators,glucose metabolism indicators,lipid metabolism indicators,microRNA-144(miR-144)expression,body mass index(BMI),clinical efficacy and incidence of adverse reactions were compared between the two groups.Results After a total of 7 cases were excluded during the treatment period,there were 71 cases in the caragliflozin group and 70 cases in the empagliflozin group.After treatment,the levels of tumor necrosis factor-α,interleukin-6,C-reactive protein,fasting blood glucose(FBG),2 h postprandial blood glucose(2 h-PPG),glycosylated hemoglobin(HbA1c),triglyceride(TG),total cholesterol,low density lipoprotein cholesterol,BMI and miR-144 expression were lower than those before treatment in two groups of patients(P<0.05),and the levels of FBG,2 h-PPG,HbA1c,TG and miR-144 expression were lower in the caragliflozin group than those of the empagliflozin group(P<0.05).After treatment,high density lipoprotein cholesterol was higher than that before treatment in the two groups(P<0.05),and that in the canagliflozin group was higher than the empagliflozin group(P<0.05).There were no significant differences in the clinical efficacy and incidence of adverse reactions between the two groups after treatment(P>0.05).Conclusion Both caragliflozin and empagliflozin have certain therapeutic efficacy and good safety for obese T2DM patients,and caragliflozin is more effective in improving glucose and lipid metabolism.
8.A case report on multidisciplinary team collaborative diagnosis and treatment of severe immune checkpoint inhibitor-related myocarditis
Zhu JIXIANG ; He YIZI ; Guan QINGPEI ; Liu PANPAN ; Wang DONGHAO ; Li ZHIMING ; Zhou HUI
Chinese Journal of Clinical Oncology 2025;52(18):950-956
With the widespread useof immune checkpoint inhibitors(ICIs)in the treatment of various solid tumors,immune-related adverse events have attracted increasing clinical attention.Although ICI-associated myocarditis is rare,it typically has an insidious onset,progresses rapidly,and carries a high mortality rate,making it one of the most severe complications of ICI therapy.Early recognition and management remain challenging due to the absence of standardized diagnostic and therapeutic guidelines.ICI-associated myocarditis is characterized by the following features,with symptom onset commonly occurring within weeks of initiating ICI therapy.Its clinical manifestations are often non-specific and can be misdiagnosed as coronary artery disease or viral myocarditis.Prompt administration of high-dose corticosteroids combined with immunosuppressants,cardiac rhythm and functional support,is crucial for effective management.Although numerous stud-ies highlight the importance of early detection and multidisciplinary collaboration,there is still no consensus on standardized treatment pro-tocols.This report describes a case of acute ICI-associated myocarditis with ovarian cancer who developed symptoms after receiving com-bined apalutamide and toripalimab therapy.The patient responded well to corticosteroid pulse therapy,second-line immunosuppressants,and intensive care support.Due to recurrent ventricular arrhythmias,an implantable cardioverter defibrillator was placed,and cardiac func-tion remained stable during follow-up.Through this case and a review of the relevant literature,we discuss the clinical features,compre-hensive treatment strategies,and long-term management approaches for ICI-associated myocarditis,aiming to raise clinical awareness,pro-mote standardized multidisciplinary team collaboration,and ultimately improve patient outcomes.
9.Clinical efficacy and safety of Luofushan-Baicao oil in the treatment of Aedes albopictus bites: a paired, self-controlled study
Hongyi LI ; Panpan WU ; Wenfeng WU ; Junsheng PENG ; Qin LIU ; Yingshan LU ; Jindian DONG ; Zhibo YANG
Chinese Journal of Dermatology 2025;58(2):178-181
Objective:To evaluate the efficacy and safety of Luofuoshan-Baicao oil (LBO) and wind medicated oil for the treatment of Aedes albopictus bites. Methods:A paired self-controlled study was conducted. Thirty-six healthy volunteers were recruited from Guangdong Provincial Hospital of Traditional Chinese Medicine from February 2023 to March 2023. Each participant's forearms were subjected to Aedes albopictus bites, with 3 bites on each arm. For the first 18 participants, LBO was applied to the left arm, and wind medicated oil to the right arm; for the latter 18 participants, wind medicated oil was applied to the left arm, and LBO to the right arm. The observation period was 24 hours. Within the first 3 hours after the mosquito bites, the topical agents were applied once every other hour for a total of 3 sessions, with an applicator centered on the bite site at a dose of approximately 50 μl, covering a skin area of about 2 cm in diameter; after 3 hours, participants applied the topical agents themselves until symptoms subsided or the 24-hour observation period ended. All subjects were followed up at the occurrence of skin lesions after mosquito bites, 0 to 3 hours after the first treatment, as well as 24 hours after the first treatment. During the follow-up, the effects of both topical agents on pruritus, erythema, papules, or wheals were evaluated, differences in treatment frequency were analyzed, and treatment-related adverse events were recorded. The time to disappearance of pruritus after treatment was statistically analyzed using Kaplan-Meier survival analysis, and intergroup differences were analyzed using the log-rank (Mantel-Cox) test. Two independent samples t-test was used for comparisons of other measurement data, and Pearson's chi-square test or Fisher's exact test was used for comparisons of count data between groups. Results:Within 3 hours after the first treatment, the time to initial disappearance of pruritus was significantly shorter in the LBO group (20.71 ± 1.92 min) than in the wind medicated oil group (28.30 ± 2.20 min, P < 0.05). The cumulative pruritus rate (the proportion of participants with pruritus among all participants) over time showed an overall stable fluctuation, and the cumulative pruritus rates at all observation points were significantly lower in the LBO group than in the wind medicated oil group ( P<0.05). After 3 hours of treatment, the mean values of changes in erythema diameters were 25.83 mm in the LBO group and 26.24 mm in the wind medicated oil group, while the mean values of changes in papule or wheal diameters were 8.25 mm in the LBO group and 9.18 mm in the wind medicated oil group; within 24 hours after the first treatment, the average time to disappearance of papules or wheals was 71.85 minutes in the LBO group and 73.01 minutes in the wind medicated oil group, while the average time to disappearance of erythema was 82.27 minutes in the LBO group and 84.86 minutes in the wind medicated oil group; there were no significant differences in the above observational indices between the two groups (all P > 0.05). The number of pruritus episodes within 24 hours of treatment was 56 in both the LBO group and wind medicated oil group, and the treatment frequency was 107 in both two groups; there were also no significant differences in the frequencies of pruritus episodes or treatment (both P > 0.05). No adverse events or reactions occurred during the trial. Conclusion:LBO was more effective than wind medicated oil in reducing the time to disappearance of pruritus after Aedes albopictus bites, with a high safety profile.
10.Clinical significance of cytokeratin 19 fragment in anti-melanoma differentiation-associated protein-5 antibody positive patients
Wenjuan GUAN ; Lijun LIU ; Panpan ZHANG ; Cong WANG ; Xin ZHANG ; Lijuan ZHANG ; Lishuai HAN ; Yinli ZHANG ; Yujie HE ; Shengyun LIU
Chinese Journal of Rheumatology 2025;29(3):189-196
Objective:To investigate the clinical significance of elevated cytokeratin 19 fragment (CYFRA21-1) in patients with dermatomyositis associated with positive anti-melanoma differentiation-associated gene 5 (MDA5) antibody.Methods:142 consecutive cases with newly onset anti-MDA5(+) (MADEDM)-DM admitted to the first affiliated hospital of Zhengzhou University from June 2018 to October 2021 were enrolled. They were divided into two groups, the low serum CYFRA21-1 group (CYFRA21-1≤4 ng/ml) and the high serum CYFRA21-1 group (CYFRA21-1>4 ng/ml). The clinical manifestations, laboratory tests results, imaging examinations treatment and outcome were collected for statistical analysis. Enumeration data were expressed as the number of cases and percentage (%). Normally distributed parameters were tested by t-test. Parameters with skewed distribution were tested by Mann-Whitney Wilcoxon analysis. Categorical variables were compared by the Chi-square test or Fisher′s exact test. Risk factor analysis was performed using Logistic regression. Cumulative survivals were described by Kaplan-Meier curves. Results:The age of onset in the high CYFRA21-1 group [(56±9)years vs. (50±10) years, t=-3.50, P=0.001] was higher than that in the low CYFRA21-1 group. Fever [63.3% (38/60) vs. 40.2% (33/82), χ2=7.39, P=0.007] was more common in the high CYFRA21-1 group, and arthritis [41.7% (25/60) vs. 69.5%(57/82), χ2=11.01, P=0.001] was less common. Myalgia, myasthenia, rashes, Raynaud′s phenomenon and skin ulcers had no significant difference between the two groups. The WBC count [5.2(4.1, 6.9)×10 9/L vs. 4.3(3.2, 6.2)×10 9/L, Z=-2.57, P=0.010], neutrophil count [4.0(2.9, 5.5)×10 9/L vs. 2.9(2.1, 4.5)×10 9/L, Z=-3.25, P=0.001] and neutrophil/lymphocyte ratio [5.75(3.50, 9.20) vs. 3.55(2.64, 5.41), Z=-3.77, P<0.001] in high CYFRA21-1 group were significantly higher than those in low CYFRA21-1 group. At the same time, LDH [384(302, 519)U/L vs. 318(260, 405)U/L, Z=-2.98, P=0.003], ferritin [1 204(677, 2 039)ng/ml vs. 570(229, 846)ng/ml, Z=-4.78, P<0.001], KL-6 [995(658, 1 491)U/ml vs. 750(563, 1 197)U/ml, Z=-2.49, P=0.013], ESR [36(22, 61)mm/1 h vs. 28(15, 46)mm/1 h, Z=-2.18, P=0.029] and CRP [9.2(4.7, 31.5)mg/L vs. 3.1(1.1, 11.6)mg/L, Z=-3.53, P<0.001] were significantly increased in the high level of CYFRA21-1 group, while serum albumin[(32±5)g/L vs. (35±5)g/L, t=3.92, P<0.001] was significantly decreased. There was no significant difference in the titers of serum anti-MDA5 antibodies between the two groups. The positive rate of anti-RO52 antibody [44(74.6%) vs. 44(53.7%), χ2=6.40, P=0.011] in high CYFRA21-1 group was higher than that in low CYFRA21-1 group. The ground glass opacity (GGO) score [1.75(1.33, 2.42) vs. 1.09(0.67, 1.67), Z=-4.60, P<0.001] based on high resolution CT (HRCT) was also significantly increased in the CYFRA21-1 high level group. Compared with the low CYFRA21-1 group, the high CYFRA21-1 group had a higher probability of RP-ILD [48.3%(29/60) vs. 23.2%(19/82), χ2=9.80, P=0.002] and a higher 6-month mortality rate[48.3%(29/60) vs.13.4%(11/82), χ2=19.70, P<0.001]. Logistic regression analysis showed that age ≥53 years old [ OR(95% CI)=5.197(1.781, 15.165), P=0.003], duration < 2 months [ OR(95% CI)=3.314 (1.058, 10.378), P=0.040], NE/LYMP >5 [ OR(95% CI)=3.443(1.120, 10.586), P=0.031], CRP>5 mg/L[ OR(95% CI)=6.271(1.749, 22.480), P=0.005], CA125>14 U/ml[ OR(95% CI)=7.500 (2.409, 23.345), P=0.001] and CYFRA21-1>4 ng/ml[ OR(95% CI)=3.665(1.258, 10.676), P=0.017] were independent risk factors for death within 6 months in MDA5-DM patients. Kaplan-Meier survival curve showed that the survival rate of the high CYFRA21-1 group was significantly lower than that of the low CYFRA21-1 group( P<0.001). Conclusion:Elevated CYFRA21-1 is an independent risk factor for early mortality in MDA5-DM patients and can serve as a novel serological marker for risk stratification in these patients.

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