BACKGROUND:Fibromyalgia syndrome,as a common rheumatic disease,is related to central sensitization and immune abnormalities.However,the specific mechanism has not been elucidated,and there is a lack of specific diagnostic markers.Exploring the possible pathogenesis of this disease has important clinical significance. OBJECTIVE:To screen the potential diagnostic marker genes of fibromyalgia syndrome and analyze the possible immune infiltration characteristics based on bioinformatics methods,such as weighted gene co-expression network analysis(WGCNA),and machine learning. METHODS:Gene expression profiles in peripheral serum of fibromyalgia syndrome patients and healthy controls were obtained from the gene expression omnibus(GEO)database.The differentially co-expressed genes were screened in the expression profile by differential analysis and WGCNA analysis.Least absolute shrinkage and selection operator(LASSO)and support vector machine-recursive feature elimination(SVM-RFE)machine learning algorithm were further used to identify hub biomarkers,and draw receiver operating characteristic curve(ROC)to evaluate the accuracy of diagnosing fibromyalgia syndrome.Finally,single sample gene set enrichment analysis(ssGSEA)and gene set enrichment analysis(GSEA)were used to evaluate the immune cell infiltration and pathway enrichment in patients with fibromyalgia syndrome. RESULTS AND CONCLUSION:Eight down-regulated differentially expressed genes(DEGs)were obtained after differential analysis of the GSE67311 dataset according to the conditions of log2|(FC)|>0 and P<0.05.After WGCNA analysis,497 genes were included in the module(MEdarkviolet)with the highest positive correlation(r=0.22,P=0.04),and 19 genes were included in the module(MEsalmon2)with the highest negative correlation(r=-0.41,P=6×10-5).After intersecting DEGs and the module genes of WGCNA,seven genes were obtained.Four genes were screened out by LASSO regression algorithm and five genes were screened out by SVM-RFE machine learning algorithm.After the intersection of the two,three core genes were identified,which were germinal center associated signaling and motility like,integrin beta-8,and carboxypeptidase A3.The areas under the ROC curve of the three core genes were 0.744,0.739,and 0.734,respectively,indicating that they have good diagnostic value and can be used as biomarkers for fibromyalgia syndrome.The results of immune infiltration analysis showed that memory B cells,CD56 bright NK cells,and mast cells were significantly down-regulated in patients with fibromyalgia syndrome compared with the control group(P<0.05),and were significantly positively correlated with the above three biomarkers(P<0.05).The enrichment analysis suggested that there were nine fibromyalgia syndrome enrichment pathways,mainly related to olfactory transduction pathway,neuroactive ligand-receptor interaction,and infection pathway.The above results showed that the occurrence and development of fibromyalgia syndrome are related to the involvement of multiple genes,abnormal immune regulation,and multiple pathways imbalance.However,the interactions between these genes and immune cells,as well as their relationships with various pathways need to be further investigated.

Objective To explore the status of nursing work engagement, nursing work environment and emotional intelligence and their relationship among nurses who work in hematopoietic stem cell transplantation (HSCT) units. Methods A total of 225 HSCT nurses were selected as study subjects by convenience sampling method. Utrecht Work Engagement Scale, Nursing Work Environment Scale and Emotional Intelligence Scale were used to assess the work engagement, work environment and emotional intelligence among these nurses. AMOS 23.0 software was used to construct the structural equation model. Results The median and 25th and 75th percentiles of the score of work engagement of the research subjects were 59.0 (54.0, 64.0) points. The average scores of the nursing work environment and emotional intelligence were (117.8±21.5) and (58.8±10.7) points, respectively. The score of work engagement was positively correlated with the scores of the nursing work environment and emotional intelligence (rank correlation coefficients were 0.550 and 0.431, respectively, both P<0.01). The total score of the nursing work environment was positively correlated with the total score of emotional intelligence (correlation coefficient was 0.271, P<0.01). The nursing work environment influenced the work engagement status of HSCT nurses through the mediating effect of emotional intelligence, with an indirect effect of 0.115 (95% confidence interval: 0.201-0.365), accounting for 20.4% of the total effect. Conclusion Emotional intelligence is a mediating variable between the nursing work environment and work engagement of HSCT nurses.

OBJECTIVE To analyze the correlation between styloid process related parameters and symptoms in patients with styloid process syndrome.METHODS A retrospective study was conducted on the 3D reconstruction CT results of the styloid process in 68 patients diagnosed with styloid process syndrome who visited the Department of Otolaryngology Head and Neck Surgery,the Second Affiliated Hospital of Xi'an Jiaotong University from January 2010 to December 2024.The relationship between parameters such as styloid process length,angle,distance from styloid process tip to pharynx,and specific symptoms in patients with styloid process syndrome was analyzed.RESULTS Among 68 patients with styloid process syndrome,44 had unilateral symptoms and 24 had bilateral symptoms.The length of the styloid process on the symptomatic side of patients with unilateral symptoms(3.86±0.16)cm was significantly longer than that on the asymptomatic side(2.98±0.17)cm(Z=-2.191,P=0.028);The length of the styloid process on the side with severe symptoms in patients with bilateral symptoms(3.98±0.37)cm was also significantly longer than that in patients with mild symptoms(3.37±0.15)cm(t=2.448,P=0.024).Patients with styloid process syndrome mainly present with pharyngalgia(64.71%,44/68).There were no significant differences in the length,inclination angle,anteversion angle,and distance between the styloid process tip and the pharynx among those with unilateral pharyngalgia(n=29),bilateral pharyngalgia(n=15),and non pharyngalgia(n=24)(P>0.05).However,among the 68 patients with styloid syndrome,12 had calcification of the styloid hyoid ligament,while 56 did not.The incidence of unilateral pharyngalgia was significantly higher in patients with calcification of the styloid hyoid ligament than in patients without calcification(66.7%vs.35.7%,χ2=3.909,P=0.048).CONCLUSION The severity of symptoms in patients with styloid process syndrome is related to the length of the styloid process,and those with calcification of the styloid hyoid ligament are more likely to experience pharyngalgia.

Objective:To verify the validity of the atopic dermatitis control tool (ADCT) in assessing disease control in patients with atopic dermatitis (AD) .Methods:Based on a cross - sectional study, demographic data, comorbidities and information on disease assessment - related scales such as the ADCT, the pruritus numerical rating scale (NRS), the patient-oriented eczema measure (POEM), and the dermatological life quality index (DLQI) were collected from patients with AD at Tianjin Medical University General Hospital from June 2021 to March 2023. The reliability and validity of the ADCT were assessed using these data. The discrimination power of the ADCT total score was evaluated by comparing the differences in the mean ADCT total scores among adjacent POEM/DLQI subgroups based on POEM/DLQI response classifications (POEM: clear or almost absent, mild, moderate, severe, very severe; DLQI: no effect, mild effect, moderate effect, serious effect, very serious effect). According to the ADCT scores, the AD patients were divided into an uncontrolled AD group (ADCT scores ≥ 7 points) and a controlled AD group (ADCT scores < 7 points). Differences between the above two groups were analyzed in terms of ADCT item scores, mean pruritus NRS scores, POEM total scores, DLQI total scores, and DLQI dimension scores to evaluate the validity of the ADCT in assessing AD disease control.Results:A total of 338 patients with AD were included, comprising 170 (50.30%) males and 168 (49.70%) females, and they were aged 17 to 89 (41.36 ± 17.63) years. Reliability analysis showed that the Cronbach′s α coefficient and split-half reliability coefficient of the ADCT were 0.886 and 0.878 respectively (both > 0.70), and the test- retest reliability coefficient was 0.977 (> 0.70, P < 0.001). Content validity analysis showed that the Pearson correlation coefficients between the ADCT item scores and the ADCT total score ranged from 0.753 to 0.852 (all P < 0.001) ; confirmatory factor analysis revealed that the Chi-square to degree of freedom ratio ( χ2/df) was 2.896 (< 5), the Tucker-Lewis index was 0.976 (> 0.9), the comparative fit index was 0.991 (> 0.9), the standardized root mean square residual was 0.026 (< 0.08), and the root-mean-square error of approximation was 0.075 (< 0.08) ; convergent validity analysis showed that the standardized factor loadings of all observed variables ranged from 0.689 to 0.905 (all > 0.500), combined reliability coefficient was 0.896 (> 0.700), and the average extracted variance value was 0.591 (> 0.500) ; criterion validity analysis showed that the correlation coefficients of the ADCT total score with other patient - reported outcome measures (the mean pruritus NRS scores, peak pruritus NRS scores, POEM total scores, and DLQI total scores) and DLQI dimension scores ranged from 0.649 to 0.730 and from 0.303 to 0.647, respectively (all P < 0.001). Analysis of the discrimination power of the ADCT total score showed significant differences in the mean ADCT total scores among adjacent POEM/DLQI subgroups (all P ≤ 0.001). The uncontrolled AD group (287 cases) showed significantly increased ADCT item scores, mean pruritus NRS score, POEM total score, DLQI total score, and DLQI dimension scores compared with the controlled AD group (51 cases, all P<0.001) . Conclusion:The ADCT exhibited good reliability, validity and discriminability based on the cross-sectional study, and can efficiently and reliably assess disease control in AD patients.

Objective:To explore differences in the radiation-induced intestinal injury in mice exposed to ultra-high dose rate (FLASH) and conventional-dose-rate (CONV) pulsed X-ray irradiation in order to provide evidence for the application of ultra-high dose rate pulsed X-rays in gastrointestinal radiotherapy.Methods:Using the random number table method, 32 C57BL/6J mice were randomly divided into four groups: a sham irradiation group (SHAM), two conventional dose rate groups (CONV0.067 and CONV0.1), and an ultra-high dose rate group (F215), with each group containing eight mice. All groups, except SHAM, received a single 12 Gy abdominal X-ray irradiation at dose rates of 0.067, 0.1, and 215 Gy/s, respectively. At 3 d post-irradiation, histopathological (hematoxylin-eosin staining, HE staining), immunohistochemical, and Western blot analysis were performed to assess the histopathological markers and oxidative stress indicators of intestinal tissues, as well as relevant proteins involved in signaling pathways.Results:At 3 d post-irradiation, mice in all irradiation groups suffered from varying degrees of intestinal tissue degeneration and necrosis, epithelial cell shedding, villus shortening, and crypt loss ( t = 5.75, 8.79, 5.71, P < 0.05). Regarding oxidative stress, at 3 d post-irradiation, mice in the CONV0.067 and CONV0.1 groups showed significantly lower levels of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-PX), glutathione (GSH), and total antioxidant capacity (T-AOC) compared to those in the F215 group ( t = 7.06-10.64, P < 0.01). In contrast, their malondialdehyde (MDA) levels were significantly elevated ( t = 11.06, 8.31, P < 0.01), with no statistical significance observed between them and mice in the F215 group ( P > 0.05). Immunohistochemical and Western blot analyses indicated that at 3 d post-irradiation, mice in the three irradiation groups exhibited an upward trend in the Nrf2 and HO-1 protein levels and a downward trend in the Keap1 protein level compared to those in the SHAM group. Notably, statistical significance was observed between the F215 group and the two conventional dose rate groups ( t = 4.89-20.95, P < 0.05). These result were consistent with the prior changes in antioxidant markers. Conclusions:Ultra-high-dose-rate X-ray irradiation reduces acute RIII by alleviating oxidative stress and modulating the expression of the Keap1-Nrf2-HO-1 signaling pathway.

Establishing a scientific talent classification evaluation mechanism is of great significance for public hospitals to motivate and guide the career development of various types of talents and to promote the high-quality development of the health and medical care industry. However, university-affiliated hospitals had long faced issues such as an imperfect talent classification evaluation system, difficulty in setting evaluation indicators, a relatively monolithic evaluation method, and insufficient application of evaluation results. In 2019, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, initiated a talent stratification and classification management mechanism. The hospital established separate evaluation indicator systems for clinical, research, and teaching talents, and adhered to a value orientation that equally emphasizes medical care, teaching, and research. Additionally, a diversified evaluation mode was constructed, led by the hospital with the participation of peers and the public. Emphasis was also placed on linking evaluation results with talent development, rewards, and excellence awards. The initiative has achieved positive outcomes and can serve as a reference for talent management in other university-affiliated hospitals and relevant departments.

AIM:This study aims to investigate the regulatory effects of caffeic acid phenethyl ester(CAPE)on metabotropic glutamate receptor 5(mGluR5)and tyrosine kinase Fyn,and to explore its role in alleviating neuroinflam-mation and pathological features of Alzheimer disease(AD).METHODS:In vitro,the murine neuroblastoma N2a cell line was treated with amyloid β-protein 42 oligomers(Aβ42Os;10 nmol/L to 10 μmol/L)for 24 h.Cell viability was as-sessed by MTT assay.Western blot analyzed mGluR5 expression and Fyn phosphorylation(Tyr416).Pharmacological modulators(CHPG/MPEP)were used to evaluate mGluR5-mediated inflammatory cytokine regulation(qPCR)and Fyn ac-tivation.In vivo,wild-type(WT)and 5×FAD mice(WT,WT+CAPE,5×FAD and 5×FAD+CAPE)were analyzed for AD-related proteins,neuroinflammation(ELISA),glial activation(GFAP/Iba-1 immunofluorescence),and β-amyloid deposi-tion(thioflavin S).RESULTS:(1)Treatment with 1 μmol/L Aβ42Os increased mGluR5 expression(P<0.01)and Fyn phosphorylation(P<0.01)without affecting N2a cell viability.Intracerebral Aβ42Os injection similarly up-regulated hip-pocampal mGluR5 and Fyn(P<0.01).(2)MPEP reduced mGluR5 expression(P<0.01)and Fyn phosphorylation(P<0.01),while suppressing tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)mRNA levels(P<0.01).(3)CAPE decreased mGluR5-Fyn activation in N2a cells,neurons,and 5×FAD mice(P<0.01).(4)CAPE-treated 5×FAD mice exhibited reduced neuroinflammation markers(GFAP,Iba-1,TNF-α,IL-1β,and IL-6),Aβ plaques,and p-APP levels(P<0.01).CONCLUSION:Treatment with CAPE inhibits Aβ42Os-induced mGluR5-Fyn signaling activation,thereby attenuating neuroinflammation and the pathology associated with AD.

Objective:To evaluate the efficacy of early bronchoalveolar lavage using electronic bronchoscopy in pediatric drowning cases.Methods:A retrospective analysis of clinical data from 81 pediatric drowning cases treated in the intensive care unit of Hunan Children's Hospital from January 2017 to September 2023 was conducted.Among these,43 cases underwent bronchoalveolar lavage with electronic bronchoscopy within 24 hours of drowning,constituting the treatment group,while 38 cases either did not receive treatment within 24 hours or underwent the procedure after 24 hours,forming the control group.We compared the two groups regarding pre-admission observations,admission observations,and disease progression or prognosis indicators to assess the clinical efficacy of early bronchoalveolar lavage with electronic bronchoscopy in pediatric drowning cases.Results:Compared to the control group,children in the treatment group exhibited a significant reduction in invasive ventilation time [(73.33±13.33) h vs.(94.82±15.77) h] and a significant decrease in pediatric intensive care unit stay [105.00 (94.00,121.00) h vs.123.5 (109.75,149.00) h],with both differences being statistically significant( P<0.05).No significant differences in white blood cell count and neutrophil percentage were observed between the treatment group and control group at admission and on the first day( P>0.05).However,by the third day,there was a significant improvement in white blood cell count in both groups,with statistical significance( P<0.05).There was a significant decrease in C-reactive protein and procalcitonin levels between the treatment group and control group on the 1st and 3rd days,with the differences being significant( P<0.05).Six hours after electronic bronchoalveolar lavage,the P/F ratio in the treatment group was lower than that in the control group (177.09±41.27 vs. 233.50±48.23),but it increased more significantly at 24 hours (286.00±34.32 vs.256.34±44.22),with a significant difference between two groups.The positive rate of lavage fluid culture in the treatment group was significantly higher than that in the control group,and the difference was statistically significant( P<0.05).There was no significant difference in the number of organ function damage between two groups( P>0.05).However,regarding prognosis,the treatment group showed significantly better outcomes than the control group( P<0.05). Conclusion:For pediatric patients with wilderness drowning,early electronic bronchoscopy with alveolar lavage may shorten the duration of invasive mechanical ventilation and pediatric intensive care unit stay,improving prognosis,and is worth promoting.

Objective:To verify the validity of the atopic dermatitis control tool (ADCT) in assessing disease control in patients with atopic dermatitis (AD) .Methods:Based on a cross - sectional study, demographic data, comorbidities and information on disease assessment - related scales such as the ADCT, the pruritus numerical rating scale (NRS), the patient-oriented eczema measure (POEM), and the dermatological life quality index (DLQI) were collected from patients with AD at Tianjin Medical University General Hospital from June 2021 to March 2023. The reliability and validity of the ADCT were assessed using these data. The discrimination power of the ADCT total score was evaluated by comparing the differences in the mean ADCT total scores among adjacent POEM/DLQI subgroups based on POEM/DLQI response classifications (POEM: clear or almost absent, mild, moderate, severe, very severe; DLQI: no effect, mild effect, moderate effect, serious effect, very serious effect). According to the ADCT scores, the AD patients were divided into an uncontrolled AD group (ADCT scores ≥ 7 points) and a controlled AD group (ADCT scores < 7 points). Differences between the above two groups were analyzed in terms of ADCT item scores, mean pruritus NRS scores, POEM total scores, DLQI total scores, and DLQI dimension scores to evaluate the validity of the ADCT in assessing AD disease control.Results:A total of 338 patients with AD were included, comprising 170 (50.30%) males and 168 (49.70%) females, and they were aged 17 to 89 (41.36 ± 17.63) years. Reliability analysis showed that the Cronbach′s α coefficient and split-half reliability coefficient of the ADCT were 0.886 and 0.878 respectively (both > 0.70), and the test- retest reliability coefficient was 0.977 (> 0.70, P < 0.001). Content validity analysis showed that the Pearson correlation coefficients between the ADCT item scores and the ADCT total score ranged from 0.753 to 0.852 (all P < 0.001) ; confirmatory factor analysis revealed that the Chi-square to degree of freedom ratio ( χ2/df) was 2.896 (< 5), the Tucker-Lewis index was 0.976 (> 0.9), the comparative fit index was 0.991 (> 0.9), the standardized root mean square residual was 0.026 (< 0.08), and the root-mean-square error of approximation was 0.075 (< 0.08) ; convergent validity analysis showed that the standardized factor loadings of all observed variables ranged from 0.689 to 0.905 (all > 0.500), combined reliability coefficient was 0.896 (> 0.700), and the average extracted variance value was 0.591 (> 0.500) ; criterion validity analysis showed that the correlation coefficients of the ADCT total score with other patient - reported outcome measures (the mean pruritus NRS scores, peak pruritus NRS scores, POEM total scores, and DLQI total scores) and DLQI dimension scores ranged from 0.649 to 0.730 and from 0.303 to 0.647, respectively (all P < 0.001). Analysis of the discrimination power of the ADCT total score showed significant differences in the mean ADCT total scores among adjacent POEM/DLQI subgroups (all P ≤ 0.001). The uncontrolled AD group (287 cases) showed significantly increased ADCT item scores, mean pruritus NRS score, POEM total score, DLQI total score, and DLQI dimension scores compared with the controlled AD group (51 cases, all P<0.001) . Conclusion:The ADCT exhibited good reliability, validity and discriminability based on the cross-sectional study, and can efficiently and reliably assess disease control in AD patients.

AIM:This study aims to investigate the regulatory effects of caffeic acid phenethyl ester(CAPE)on metabotropic glutamate receptor 5(mGluR5)and tyrosine kinase Fyn,and to explore its role in alleviating neuroinflam-mation and pathological features of Alzheimer disease(AD).METHODS:In vitro,the murine neuroblastoma N2a cell line was treated with amyloid β-protein 42 oligomers(Aβ42Os;10 nmol/L to 10 μmol/L)for 24 h.Cell viability was as-sessed by MTT assay.Western blot analyzed mGluR5 expression and Fyn phosphorylation(Tyr416).Pharmacological modulators(CHPG/MPEP)were used to evaluate mGluR5-mediated inflammatory cytokine regulation(qPCR)and Fyn ac-tivation.In vivo,wild-type(WT)and 5×FAD mice(WT,WT+CAPE,5×FAD and 5×FAD+CAPE)were analyzed for AD-related proteins,neuroinflammation(ELISA),glial activation(GFAP/Iba-1 immunofluorescence),and β-amyloid deposi-tion(thioflavin S).RESULTS:(1)Treatment with 1 μmol/L Aβ42Os increased mGluR5 expression(P<0.01)and Fyn phosphorylation(P<0.01)without affecting N2a cell viability.Intracerebral Aβ42Os injection similarly up-regulated hip-pocampal mGluR5 and Fyn(P<0.01).(2)MPEP reduced mGluR5 expression(P<0.01)and Fyn phosphorylation(P<0.01),while suppressing tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)mRNA levels(P<0.01).(3)CAPE decreased mGluR5-Fyn activation in N2a cells,neurons,and 5×FAD mice(P<0.01).(4)CAPE-treated 5×FAD mice exhibited reduced neuroinflammation markers(GFAP,Iba-1,TNF-α,IL-1β,and IL-6),Aβ plaques,and p-APP levels(P<0.01).CONCLUSION:Treatment with CAPE inhibits Aβ42Os-induced mGluR5-Fyn signaling activation,thereby attenuating neuroinflammation and the pathology associated with AD.