Objective: To explore the association role of anxiety and depressive symptoms with Internet gaming disorder (IGD) and emotional-behavioral problems among junior high school students, so as to provide references for preventing the occurrence and progression of emotional-behavioral problems in middle school students. Methods: From September to October 2024, a random cluster sampling method was adopted to select 38 069 students from 28 junior high schools in 14 counties (cities and districts) and functional areas of Jining City, Shandong Province. Surveys were conducted by Nine item Internet Gaming Disorder Scale-Short Form, Generalized Anxiety Disorder-7, Patient Health Questionnaire-9, and Strengths and Difficulties Questionnaire. The correlation of emotional and behavioral issues, online game addiction, anxiety and depressive symptoms among junior high school students was analyzed by Speaman correlation analysis. Mediation analysis was used to explore the role of anxiety and depressive symptoms between IGD and emotional-behavioral problems among junior high school students. Results: The detection rates of emotional-behavioral problems, anxiety symptoms, depressive symptoms, and IGD among junior high school students were 19.24 %, 9.48%, 16.69%, and 19.68%, respectively. The scores of emotional-behavioral problems, anxiety symptoms, depressive symptoms and IGD were 10.00 (6.00, 15.00), 3.00 (0.00, 7.00), and 4.00 (1.00, 8.00), 13.00 (10.00, 19.00), respectively. There were positive correlations between each pair of emotional-behavioral problem, IGD, anxiety symptoms, and depressive symptoms scores ( r =0.51-0.81, all P <0.01). Anxiety and depressive symptoms played mediating roles between IGD and emotional-behavioral problems among junior high school students, with mediating effect values of 0.16 (95% CI =0.15-0.17) and 0.12 (95% CI =0.11-0.14), respectively (both P <0.01). Conclusions Anxiety and depressive symptoms mediate the relationship between IGD and emotional-behavioral problems among junior high school students. It is necessary to identify early signs of IGD among junior high school students, strengthen intervention for anxiety and depressive symptoms, to prevent the occurrence and development of emotional and behavioral issues.

Objective To investigate the correlation and clinical prognostic value between the expression of polypeptide N-acety lgalactosaminyltransferases 1(GALNT1),lysosomal adaptor MTOR activator 5(LAMTOR5),and epithelial mesenchymal transition(EMT)in gastric cancer.Methods 102 gastric cancer patients admitted to Nantong Tumor Hospital from January 2018 to January 2020 were selected.Immunohistochemistry(IHC)and real-time fluorescence quantitative PCR(RT-PCR)were used to detect the expression of GALNT1,LAMTOR5 mRNA and protein,as well as the expression of EMT indicators Snail mRNA,N-cad mRNA and Vimentin mRNA in cancer and adjacent tissues.Pearson correlation analysis was performed to investigate the correlation between markers.Kaplan Meier curve analysis was used to investigate the relationship between GALNT1 mRNA,LAMTOR5 mRNA and the prognosis of gastric cancer patients.COX regression analysis was used to identify factors that affect the prognosis of gastric cancer patients.Results GALNT1 mRNA(3.38±0.29)and LAMTOR5 mRNA(3.17±0.26)in gastric cancer tissue were higher than those in adjacent tissues(0.72±0.16,0.65±0.13),and the differences were statistically significant(t=81.111,87.553,all P<0.001).The positive rates of GALNT1(92.16%),LAMTOR5(90.20%)proteins in gastric cancer tissues were higher than those in adjacent tissues(7.84%,11.76%),and the differences were statistically significant(χ2=145.020,125.538,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was positively correlated(r=0.757,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was significantly positively correlated with Snail mRNA,N-cad mRNA and Vimentin mRNA expression(r=0.654,0.712,0.689;0.706,0.645,0.723,all P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA was correlated with TNM stage and lymph node metastasis in gastric cancer patients.The expression of GALNT1 mRNA and LAMTOR5 mRNA in cancer tissues with TNM stage III and lymph node metastasis was higher than that in TNM stage I～II and no lymph node metastasis,and the differences were statistically significant(χ2=29.417～290.104,all P<0.001).The 3-year overall survival rate of the high expression group of GALNT1 mRNA was 40.00%(20/50),which was lower than 76.92%(40/52)of the low expression group,the 3-year overall survival rate of the high expression group of LAMTOR5 mRNA was 38.78%(19/49),which was lower than the 77.36%(41/53)of the low expression group,and the differences were statistically significant(Log-Rank χ2=7.327,5.197,P=0.009,0.023).TNM stage III,lymph node metastasis,GALNT1 mRNA was highly expressed,and high LAMTOR5 mRNA was highly expressed were risk factors affecting the prognosis of gastric cancer(Wald χ2=6.409～16.805,all P<0.001).Conclusion The expression of GALNT1 and LAMTOR5 are elevated in gastric cancer tissues.Both of them are related to EMT indicators and adverse clinicopathological features.They are biomarkers for evaluating the prognosis of gastric cancer patients.

Objective: To compare and analyze the antibacterial effects of platelets against five common clinical pathogenic bacteria including MRSA, SE, SA, E. coli, and CRKP, and to preliminarily explore the role of DCD sensitivity in the observed variations of antibacterial effects. Methods: The same number of platelets were used to establish co-culture systems of platelets and platelet lysates with the five pathogenic bacteria. The antibacterial effects of platelets and platelet lysates on the five pathogenic bacteria were evaluated by observing the turbidity of the bacterial solution, measuring the OD value of the bacterial solution and counting the colonies. The supernatant protein of platelets co-cultured with MRSA was collected for quantitative proteomics analysis to explore the important antibacterial proteins of platelets. The content of DCD in the supernatant after co-culture of platelets and platelet lysates with the five pathogenic bacteria was detected by ELISA to preliminarily analyze the reasons for the different antibacterial effects of platelets on the five pathogenic bacteria. Results: Compared with the control group of MRSA, SA, and SE, the turbidity of the bacterial solution decreased after co-culture of platelets and platelet lysates with MRSA, SA, and SE for 12 h, and the OD value and colony count were significantly reduced (P<0.05). The turbidity of the bacterial solution did not change significantly after co-culture of platelets and platelet lysates with E. coli for 24 h, but the OD value decreased (P<0.05), and the colony count decreased to 10 CFU/mL but the difference was not statistically significant (P>0.05). Compared with the control group of CRKP, the turbidity, OD value, and colony count of the bacterial solution did not change significantly after co-culture of platelets and platelet lysates with CRKP (P>0.05). Proteomics results showed that after co-culture with MRSA, important proteins related to platelet activation, including collagen, fibrinogen, von Willebrand factor, integrin αIIbβ3, platelet glycoprotein V and IV were significantly up-regulated. ELISA results showed that after co-culture with the five pathogenic bacteria, platelets could secrete a large amount of DCD, with the content around 3 μg/mL. Conclusion: The antibacterial effect of platelets on Gram-positive bacteria MRSA, SA, and SE is better than that on Gram-negative bacteria E. coli and CRKP, and platelets have the best antibacterial effect on MRSA. The differences in antibacterial effects of platelets on the five pathogenic bacteria may be related to the sensitivity of DCD antibacterial peptides to the five pathogenic bacteria.

Objective To investigate the correlation and clinical prognostic value between the expression of polypeptide N-acety lgalactosaminyltransferases 1(GALNT1),lysosomal adaptor MTOR activator 5(LAMTOR5),and epithelial mesenchymal transition(EMT)in gastric cancer.Methods 102 gastric cancer patients admitted to Nantong Tumor Hospital from January 2018 to January 2020 were selected.Immunohistochemistry(IHC)and real-time fluorescence quantitative PCR(RT-PCR)were used to detect the expression of GALNT1,LAMTOR5 mRNA and protein,as well as the expression of EMT indicators Snail mRNA,N-cad mRNA and Vimentin mRNA in cancer and adjacent tissues.Pearson correlation analysis was performed to investigate the correlation between markers.Kaplan Meier curve analysis was used to investigate the relationship between GALNT1 mRNA,LAMTOR5 mRNA and the prognosis of gastric cancer patients.COX regression analysis was used to identify factors that affect the prognosis of gastric cancer patients.Results GALNT1 mRNA(3.38±0.29)and LAMTOR5 mRNA(3.17±0.26)in gastric cancer tissue were higher than those in adjacent tissues(0.72±0.16,0.65±0.13),and the differences were statistically significant(t=81.111,87.553,all P<0.001).The positive rates of GALNT1(92.16%),LAMTOR5(90.20%)proteins in gastric cancer tissues were higher than those in adjacent tissues(7.84%,11.76%),and the differences were statistically significant(χ2=145.020,125.538,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was positively correlated(r=0.757,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was significantly positively correlated with Snail mRNA,N-cad mRNA and Vimentin mRNA expression(r=0.654,0.712,0.689;0.706,0.645,0.723,all P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA was correlated with TNM stage and lymph node metastasis in gastric cancer patients.The expression of GALNT1 mRNA and LAMTOR5 mRNA in cancer tissues with TNM stage III and lymph node metastasis was higher than that in TNM stage I～II and no lymph node metastasis,and the differences were statistically significant(χ2=29.417～290.104,all P<0.001).The 3-year overall survival rate of the high expression group of GALNT1 mRNA was 40.00%(20/50),which was lower than 76.92%(40/52)of the low expression group,the 3-year overall survival rate of the high expression group of LAMTOR5 mRNA was 38.78%(19/49),which was lower than the 77.36%(41/53)of the low expression group,and the differences were statistically significant(Log-Rank χ2=7.327,5.197,P=0.009,0.023).TNM stage III,lymph node metastasis,GALNT1 mRNA was highly expressed,and high LAMTOR5 mRNA was highly expressed were risk factors affecting the prognosis of gastric cancer(Wald χ2=6.409～16.805,all P<0.001).Conclusion The expression of GALNT1 and LAMTOR5 are elevated in gastric cancer tissues.Both of them are related to EMT indicators and adverse clinicopathological features.They are biomarkers for evaluating the prognosis of gastric cancer patients.

Objective To investigate the effect of FUNDC1 tyrosine phosphorylation site mutations on mitophagy in H9c2 myocardial cells by constructing tyrosine site mutant plasmids (Y11 and Y18) of the FUN14 domain-containing protein 1 (FUNDC1). Methods The mutant plasmids constructed by whole-gene synthesis were transfected into rat myocardial H9c2 cells and divided into five groups: empty plasmid group, FUNDC1 overexpression group, Y11 mutant group, Y18 mutant group, and Y11 combined with Y18 mutant group. The viability of H9c2 cells was assessed using the CCK-8 assay. Additionally, tetramethylrhodamine ethyl ester (TMRE) staining was utilized to detect mitochondrial membrane potential. The protein expression levels of FUNDC1, translocase of the outer mitochondrial membrane 20 (TOM20), and cytochrome c oxidase IV (COX IV) were detected by Western blot analysis. Confocal microscopy was used to evaluate transfection efficiency as well as the co-localization of mitochondria and lysosomes. Results The FUNDC1 overexpression, Y11, Y18, and Y11 combined with Y18 mutant plasmids were successfully constructed. After plasmid transfection, widespread GFP fluorescence expression was observed under confocal microscopy. Compared with the empty plasmid group, FUNDC1 protein expression levels were significantly increased in the FUNDC1 overexpression group, Y11 mutation group, Y18 mutation group, and Y11 combined with Y18 mutation group, while cell viability and mitochondrial membrane potential showed no significant changes. Compared to the empty plasmid group, cells transfected with Y18 and Y11 combined with Y18 mutant plasmids showed increased TOM20 and COX IV expression levels and decreased mitochondrial-lysosomal co-localization. Conclusion Transfection with FUNDC1 Y18 or Y11 combined with Y18 mutant plasmids inhibited mitophagy in H9c2 myocardial cells.
Animals ; Rats ; Mitophagy/genetics* ; Myocytes, Cardiac/cytology* ; Mitochondrial Proteins/metabolism* ; Mutation ; Phosphorylation ; Tyrosine/genetics* ; Cell Line ; Membrane Proteins/metabolism* ; Membrane Potential, Mitochondrial

Objective:To investigate GPRC5D expression on myeloma cells in newly diagnosed multiple myeloma (NDMM) patients and evaluate its prognostic significance.Methods:This study retrospectively analyzed the clinical data of 65 patients with NDMM treated at the Affiliated Hospital of Xuzhou Medical University from April 2023 to April 2024. The expression of GPRC5D on the surface of myeloma cells in all patients was detected with flow cytometry before induction therapy, and patients were stratified into high and low GPRC5D expression groups based on the median GPRC5D positivity rate. Clinical characteristics, immune status, treatment response after induction therapy, and prognosis were compared between the two groups.Results:The median positive rate of GPRC5D in the plasma cells of 65 patients with NDMM was 32.68%. Based on this threshold, patients were categorized into the high (33 cases, GPRC5D positive rate ≥ 32.68%) and low (32 cases, GPRC5D positive rate <32.68%) GPRC5D expression groups. Compared with the low GPRC5D expression group, the high GPRC5D expression group demonstrated a higher proportion of 1q21 gain (78.8% vs 43.8%, P=0.004), a higher incidence of immunoparesis involving ≥2 uninvolved immunoglobulins (87.9% vs 62.5%, P=0.018), and severe immunoparesis (59.4% vs 33.3%, P=0.046). Further, CD16 +CD56 + cell levels were lower in the high GPRC5D expression group [ (16.60±8.70) % vs (27.78±15.78) %, P=0.005]. No significant difference was observed in the overall response rate between the high and low GPRC5D expression groups (78.8% vs 93.8%, P=0.165). However, the high GPRC5D expression group exhibited a significantly lower rate of achieving very good partial remission or better (42.4% vs 78.2%, P=0.003) and a lower MRD negativity rate (30.0% vs 68.8%, P=0.002). Compared with the low GPRC5D expression group, patients with high expression demonstrated a significantly shorter median progression-free survival (11.2 months vs not reached, P=0.002), whereas the median overall survival was not reached in either group, with no statistically significant difference ( P=0.069) . Conclusions:The GPRC5D positivity rate in the plasma cells of patients with NDMM is associated with 1q21 gain and immune status. High GPRC5D expression at diagnosis may predict poor response to induction therapy and an unfavorable prognosis.

Objective:To investigate GPRC5D expression on myeloma cells in newly diagnosed multiple myeloma (NDMM) patients and evaluate its prognostic significance.Methods:This study retrospectively analyzed the clinical data of 65 patients with NDMM treated at the Affiliated Hospital of Xuzhou Medical University from April 2023 to April 2024. The expression of GPRC5D on the surface of myeloma cells in all patients was detected with flow cytometry before induction therapy, and patients were stratified into high and low GPRC5D expression groups based on the median GPRC5D positivity rate. Clinical characteristics, immune status, treatment response after induction therapy, and prognosis were compared between the two groups.Results:The median positive rate of GPRC5D in the plasma cells of 65 patients with NDMM was 32.68%. Based on this threshold, patients were categorized into the high (33 cases, GPRC5D positive rate ≥ 32.68%) and low (32 cases, GPRC5D positive rate <32.68%) GPRC5D expression groups. Compared with the low GPRC5D expression group, the high GPRC5D expression group demonstrated a higher proportion of 1q21 gain (78.8% vs 43.8%, P=0.004), a higher incidence of immunoparesis involving ≥2 uninvolved immunoglobulins (87.9% vs 62.5%, P=0.018), and severe immunoparesis (59.4% vs 33.3%, P=0.046). Further, CD16 +CD56 + cell levels were lower in the high GPRC5D expression group [ (16.60±8.70) % vs (27.78±15.78) %, P=0.005]. No significant difference was observed in the overall response rate between the high and low GPRC5D expression groups (78.8% vs 93.8%, P=0.165). However, the high GPRC5D expression group exhibited a significantly lower rate of achieving very good partial remission or better (42.4% vs 78.2%, P=0.003) and a lower MRD negativity rate (30.0% vs 68.8%, P=0.002). Compared with the low GPRC5D expression group, patients with high expression demonstrated a significantly shorter median progression-free survival (11.2 months vs not reached, P=0.002), whereas the median overall survival was not reached in either group, with no statistically significant difference ( P=0.069) . Conclusions:The GPRC5D positivity rate in the plasma cells of patients with NDMM is associated with 1q21 gain and immune status. High GPRC5D expression at diagnosis may predict poor response to induction therapy and an unfavorable prognosis.

Background::Growth differentiation factor-15 (GDF-15) is a stress response protein and is related to cardiovascular diseases (CVD). This study aimed to investigate the association between GDF-15 and pre-eclampsia (PE).Method::The study involved 299 pregnant women, out of which 236 had normal pregnancies, while 63 participants had PE. Maternal serum levels of GDF-15 were measured by using enzyme-linked immunosorbent assay kits and then translated into multiple of median (MOM) to avoid the influence of gestational week at blood sampling. Logistic models were performed to estimate the association between GDF-15 MOM and PE, presenting as odd ratios (ORs) and 95% confidence intervals (CIs).Results::MOM of GDF-15 in PE participants was higher compared with controls (1.588 vs. 1.000, p < 0.001). In the logistic model, pregnant women with higher MOM of GDF-15 (>1) had a 4.74-fold (95% CI= 2.23-10.08, p < 0.001) increased risk of PE, adjusted by age, preconceptional body mass index, gravidity, and parity. Conclusions::These results demonstrated that higher levels of serum GDF-15 were associated with PE. GDF-15 may serve as a biomarker for diagnosing PE.

Background::Growth differentiation factor-15 (GDF-15) is a stress response protein and is related to cardiovascular diseases (CVD). This study aimed to investigate the association between GDF-15 and pre-eclampsia (PE).Method::The study involved 299 pregnant women, out of which 236 had normal pregnancies, while 63 participants had PE. Maternal serum levels of GDF-15 were measured by using enzyme-linked immunosorbent assay kits and then translated into multiple of median (MOM) to avoid the influence of gestational week at blood sampling. Logistic models were performed to estimate the association between GDF-15 MOM and PE, presenting as odd ratios (ORs) and 95% confidence intervals (CIs).Results::MOM of GDF-15 in PE participants was higher compared with controls (1.588 vs. 1.000, p < 0.001). In the logistic model, pregnant women with higher MOM of GDF-15 (>1) had a 4.74-fold (95% CI= 2.23-10.08, p < 0.001) increased risk of PE, adjusted by age, preconceptional body mass index, gravidity, and parity. Conclusions::These results demonstrated that higher levels of serum GDF-15 were associated with PE. GDF-15 may serve as a biomarker for diagnosing PE.

Objective To explore the characteristics of TCM syndromes in patients with coronary heart disease complicated with hypertension and diabetes based on latent structure model.Methods A multi-center cross-sectional study was used to collect the four diagnostic information of patients with coronary heart disease by using the Four Diagnostic Collection Scales of TCM developed by our research group,and a clinical database was established.Combined with frequency analysis and expert opinions,the four diagnostic information was screened to construct a latent structure model.Results Totally 702 patients with coronary heart disease complicated with hypertension and diabetes were collected.A total of 40 high-frequency four-diagnosis symptoms were screened,and 18 latent variables were obtained by latent structure model analysis.The model BIC score was-17 604.38.The latent variables in the model were comprehensively clustered,and it was found that the syndrome elements of disease location in patients with coronary heart disease complicated with hypertension and diabetes were mainly heart,liver,kidney,etc.,and the syndrome elements of disease nature were mainly qi deficiency,yin deficiency,qi stagnation,phlegm turbidity,blood stasis,etc.The syndrome types were mainly phlegm and blood stasis syndrome,spleen and kidney yang deficiency syndrome,liver depression and qi stagnation syndrome,liver and kidney yin deficiency syndrome,damp-heat intrinsic syndrome,and the mutual information and information coverage between each syndrome type and the four diagnostic information were suggested.Conclusion Latent structure model analysis can provide a qualitative and quantitative basis for the syndrome classification of patients with coronary heart disease complicated with hypertension and diabetes.