Evaluation of cardiac structure and function in patients with non-ST-segment elevation myocardial infarction is important for diagnosis,treatment,and prognosis prediction.Echocardiography serves as the preferred imaging modality for assessing cardiovascular diseases,enabling rapid and accurate evaluation of cardiac structure and function.Due to technological advances in recent years,there are now new echocardiographic techniques with new methodologies and parameters that can be used for evaluation of cardiovascular condi-tions.This article summarizes the new echocardiographic techniques currently used for evaluation of non-ST-segment elevation myocardial infarction,which mainly include speckle tracking echocardiography,contrast echocardiography,stress echocardiography,and three-di-mensional echocardiography,and reviews the diagnostic and prognostic predictive values of these techniques for non-ST-segment elevation myocardial infarction.

Objective To explore the mechanism through which dexmedetomidine(Dex)alleviates doxorubicin(Adr)-induced myo-cardial injury via regulating nuclear factor κB(NF-κB)expression.Methods Sprague-Dawley rats were divided into control,Adr,and Adr+Dex groups.Theirs hearts were harvested for hematoxylin and eosin(HE)staining,immunohistochemical staining,real-time polymerase chain reaction(PCR),and Western blotting anlyses.The rat primary cardiomyocytes,breast cancer cell line MDA-MB-23,lung cancer cell line H226,gastric cancer cell line AGS,and bladder cancer cell line 5637 were cultured and divided into control,Adr,Adr+Dex,Dex,and Adr+Dex+NF-κBi groups.CCK-8 and immunofluorescence staining were performed to detect the reactive oxygen species(ROS)contents.Results The myocardial arrangement of the rats in the Adr group was disordered,myocardial cell activity was lower,the mitochondrial membrane potential was lower,ROS production was higher,and NF-κB mRNA and protein contents were sub-stantially lower than those in the control group.The cardiomyocyte morphology was improved,cell activity was higher,mitochondrial mem-brane potential was increased,ROS production decreased,and NF-κB expression significantly increased in the Adr+Dex group compared with those in the control group.The mitochondrial membrane potential in the Adr+Dex+NF-κBi group was lower,and ROS generation was increased compared with the control group.The activity of the tumor cells in the Adr group was lower,and no statistically significant diffe-rences were found compared with that in the Adr+Dex group.Conclusion Treatment with Dex may not affect the chemotherapeutic effects of Adr.Dex administration may increase the myocardial mitochondrial membrane potential and reduce ROS generation by regu-lating NF-κB levels,thereby reducing Adr-induced myocardial damage.

Evaluation of cardiac structure and function in patients with non-ST-segment elevation myocardial infarction is important for diagnosis,treatment,and prognosis prediction.Echocardiography serves as the preferred imaging modality for assessing cardiovascular diseases,enabling rapid and accurate evaluation of cardiac structure and function.Due to technological advances in recent years,there are now new echocardiographic techniques with new methodologies and parameters that can be used for evaluation of cardiovascular condi-tions.This article summarizes the new echocardiographic techniques currently used for evaluation of non-ST-segment elevation myocardial infarction,which mainly include speckle tracking echocardiography,contrast echocardiography,stress echocardiography,and three-di-mensional echocardiography,and reviews the diagnostic and prognostic predictive values of these techniques for non-ST-segment elevation myocardial infarction.

BACKGROUND:The causal relationship between modifiable factors such as lifestyle,metabolic characteristics,and nutritional intake and joint sports injuries has been increasingly recognized in clinical studies.However,the exact causal relationship between these modifiable factors and joint sports injuries remains unclear. OBJECTIVE:To investigate the causal relationship between modifiable factors and joint sports injuries using Mendelian randomization to provide a basis for sports injury prevention. METHODS:The GWAS dataset of intervening factors and joint sports injuries was obtained from publicly available data.The causal relationships between lifestyle,metabolic characteristics,nutritional intake,and joint sports injuries were explored using the inverse variance weighting method,the MR-Egger method,and the weighted median method.For sensitivity analyses,Cochran's Q test,MR-Egger regression,leave-one-out method,and MR-PRESSO were used to verify the stability and reliability of the results. RESULTS AND CONCLUSION:(1)In terms of lifestyle,coffee(OR=0.29,95%CI:0.10-0.79,P=0.016),and tea consumption(OR=0.41,95%CI=0.19-0.85,P=0.017)were associated with a decreased risk of ankle and foot joint sports injuries,and coffee consumption(OR=3.31,95%CI=1.02-10.73,P=0.046)was potentially causally associated with an increased risk of shoulder joint sports injuries;and never smoking(OR=0.78,95%CI=0.70-0.87,P=1.49×10-5)was significantly causally associated with a decreased risk of ankle and foot joint sports injuries.(2)In terms of metabolic characteristics,calcium levels(OR=0.88,95%CI=0.79-0.98,P=0.017)were potentially causally associated with a decreased risk of wrist and hand joint sports injuries.(3)In terms of nutritional intake,vitamin A intake(OR=1.08,95%CI:1.02-1.13,P=0.007)was potentially causally associated with increased risk of knee joint sports injury.(4)For the sensitivity analysis,Cochran's Q test showed the existence of heterogeneity(P<0.05),so the random effect model was used for the analysis.MR-Egger regression and MR-PRESSO test did not find evidence of pleiotropy(P>0.05),and the leave-one-out method showed that the results were stable after eliminating single nucleotide polymorphisms one by one.(5)This study preliminarily reveals the effects of modifiable factors,such as lifestyle,metabolic characteristics,and nutritional intake,on the risk of joint sports injuries.It provides valuable research evidence and guidance for the prevention of joint sports injuries.

Objective: Accurate evaluation of inflammation severity in ulcerative colitis (UC) can guide treatment strategy selection. The potential value of the pericolic fat attenuation index (FAI) on CT as an indicator of disease severity remains unknown.This study aimed to assess the diagnostic accuracy of pericolic FAI in predicting UC severity. Materials and Methods: This retrospective study enrolled 148 patients (mean age 48 years; 87 males). The fat attenuation on CT was measured in four different locations: the mesocolic vascular side (MS) and opposite side of MS (OMS) around the most severe bowel lesion, the retroperitoneal space (RS), and the subcutaneous area. The fat attenuation indices (FAI MS, FAI OMS, and FAI RS) were calculated as the fat attenuation measured in MS, OMS, and RS, respectively, minus that of the subcutaneous area, and were obtained in the non-enhanced, arterial, and delayed phases. Correlations between the FAI and UC Endoscopic Index of Severity (UCEIS) were assessed using Spearman’s correlation. Predictors of severe UC (UCEIS ≥7) were selected by univariable analysis. The performance of FAI in predicting severe UC was evaluated using the area under the receiver operating characteristic curve (AUC). Results: The FAIMS and FAI OMS scores were significantly higher than FAI RS in three phases (all P < 0.001). The FAIMS and FAI OMS scores moderately correlated with the UCEIS score (r = 0.474–0.649 among the three phases). Additionally, FAI MS and FAI OMS identified severe UC, with AUC varying from 0.77 to 0.85. Conclusion Increased CT attenuation of pericolic adipose tissue could serve as a noninvasive marker for evaluating UC severity. FAI MS and FAI OMS of three phases showed similar prediction accuracies for severe UC identification.

Objective: Accurate evaluation of inflammation severity in ulcerative colitis (UC) can guide treatment strategy selection. The potential value of the pericolic fat attenuation index (FAI) on CT as an indicator of disease severity remains unknown.This study aimed to assess the diagnostic accuracy of pericolic FAI in predicting UC severity. Materials and Methods: This retrospective study enrolled 148 patients (mean age 48 years; 87 males). The fat attenuation on CT was measured in four different locations: the mesocolic vascular side (MS) and opposite side of MS (OMS) around the most severe bowel lesion, the retroperitoneal space (RS), and the subcutaneous area. The fat attenuation indices (FAI MS, FAI OMS, and FAI RS) were calculated as the fat attenuation measured in MS, OMS, and RS, respectively, minus that of the subcutaneous area, and were obtained in the non-enhanced, arterial, and delayed phases. Correlations between the FAI and UC Endoscopic Index of Severity (UCEIS) were assessed using Spearman’s correlation. Predictors of severe UC (UCEIS ≥7) were selected by univariable analysis. The performance of FAI in predicting severe UC was evaluated using the area under the receiver operating characteristic curve (AUC). Results: The FAIMS and FAI OMS scores were significantly higher than FAI RS in three phases (all P < 0.001). The FAIMS and FAI OMS scores moderately correlated with the UCEIS score (r = 0.474–0.649 among the three phases). Additionally, FAI MS and FAI OMS identified severe UC, with AUC varying from 0.77 to 0.85. Conclusion Increased CT attenuation of pericolic adipose tissue could serve as a noninvasive marker for evaluating UC severity. FAI MS and FAI OMS of three phases showed similar prediction accuracies for severe UC identification.

Objective: Accurate evaluation of inflammation severity in ulcerative colitis (UC) can guide treatment strategy selection. The potential value of the pericolic fat attenuation index (FAI) on CT as an indicator of disease severity remains unknown.This study aimed to assess the diagnostic accuracy of pericolic FAI in predicting UC severity. Materials and Methods: This retrospective study enrolled 148 patients (mean age 48 years; 87 males). The fat attenuation on CT was measured in four different locations: the mesocolic vascular side (MS) and opposite side of MS (OMS) around the most severe bowel lesion, the retroperitoneal space (RS), and the subcutaneous area. The fat attenuation indices (FAI MS, FAI OMS, and FAI RS) were calculated as the fat attenuation measured in MS, OMS, and RS, respectively, minus that of the subcutaneous area, and were obtained in the non-enhanced, arterial, and delayed phases. Correlations between the FAI and UC Endoscopic Index of Severity (UCEIS) were assessed using Spearman’s correlation. Predictors of severe UC (UCEIS ≥7) were selected by univariable analysis. The performance of FAI in predicting severe UC was evaluated using the area under the receiver operating characteristic curve (AUC). Results: The FAIMS and FAI OMS scores were significantly higher than FAI RS in three phases (all P < 0.001). The FAIMS and FAI OMS scores moderately correlated with the UCEIS score (r = 0.474–0.649 among the three phases). Additionally, FAI MS and FAI OMS identified severe UC, with AUC varying from 0.77 to 0.85. Conclusion Increased CT attenuation of pericolic adipose tissue could serve as a noninvasive marker for evaluating UC severity. FAI MS and FAI OMS of three phases showed similar prediction accuracies for severe UC identification.

Objective: Accurate evaluation of inflammation severity in ulcerative colitis (UC) can guide treatment strategy selection. The potential value of the pericolic fat attenuation index (FAI) on CT as an indicator of disease severity remains unknown.This study aimed to assess the diagnostic accuracy of pericolic FAI in predicting UC severity. Materials and Methods: This retrospective study enrolled 148 patients (mean age 48 years; 87 males). The fat attenuation on CT was measured in four different locations: the mesocolic vascular side (MS) and opposite side of MS (OMS) around the most severe bowel lesion, the retroperitoneal space (RS), and the subcutaneous area. The fat attenuation indices (FAI MS, FAI OMS, and FAI RS) were calculated as the fat attenuation measured in MS, OMS, and RS, respectively, minus that of the subcutaneous area, and were obtained in the non-enhanced, arterial, and delayed phases. Correlations between the FAI and UC Endoscopic Index of Severity (UCEIS) were assessed using Spearman’s correlation. Predictors of severe UC (UCEIS ≥7) were selected by univariable analysis. The performance of FAI in predicting severe UC was evaluated using the area under the receiver operating characteristic curve (AUC). Results: The FAIMS and FAI OMS scores were significantly higher than FAI RS in three phases (all P < 0.001). The FAIMS and FAI OMS scores moderately correlated with the UCEIS score (r = 0.474–0.649 among the three phases). Additionally, FAI MS and FAI OMS identified severe UC, with AUC varying from 0.77 to 0.85. Conclusion Increased CT attenuation of pericolic adipose tissue could serve as a noninvasive marker for evaluating UC severity. FAI MS and FAI OMS of three phases showed similar prediction accuracies for severe UC identification.

Objective: Accurate evaluation of inflammation severity in ulcerative colitis (UC) can guide treatment strategy selection. The potential value of the pericolic fat attenuation index (FAI) on CT as an indicator of disease severity remains unknown.This study aimed to assess the diagnostic accuracy of pericolic FAI in predicting UC severity. Materials and Methods: This retrospective study enrolled 148 patients (mean age 48 years; 87 males). The fat attenuation on CT was measured in four different locations: the mesocolic vascular side (MS) and opposite side of MS (OMS) around the most severe bowel lesion, the retroperitoneal space (RS), and the subcutaneous area. The fat attenuation indices (FAI MS, FAI OMS, and FAI RS) were calculated as the fat attenuation measured in MS, OMS, and RS, respectively, minus that of the subcutaneous area, and were obtained in the non-enhanced, arterial, and delayed phases. Correlations between the FAI and UC Endoscopic Index of Severity (UCEIS) were assessed using Spearman’s correlation. Predictors of severe UC (UCEIS ≥7) were selected by univariable analysis. The performance of FAI in predicting severe UC was evaluated using the area under the receiver operating characteristic curve (AUC). Results: The FAIMS and FAI OMS scores were significantly higher than FAI RS in three phases (all P < 0.001). The FAIMS and FAI OMS scores moderately correlated with the UCEIS score (r = 0.474–0.649 among the three phases). Additionally, FAI MS and FAI OMS identified severe UC, with AUC varying from 0.77 to 0.85. Conclusion Increased CT attenuation of pericolic adipose tissue could serve as a noninvasive marker for evaluating UC severity. FAI MS and FAI OMS of three phases showed similar prediction accuracies for severe UC identification.

Objective To explore the mechanism through which dexmedetomidine(Dex)alleviates doxorubicin(Adr)-induced myo-cardial injury via regulating nuclear factor κB(NF-κB)expression.Methods Sprague-Dawley rats were divided into control,Adr,and Adr+Dex groups.Theirs hearts were harvested for hematoxylin and eosin(HE)staining,immunohistochemical staining,real-time polymerase chain reaction(PCR),and Western blotting anlyses.The rat primary cardiomyocytes,breast cancer cell line MDA-MB-23,lung cancer cell line H226,gastric cancer cell line AGS,and bladder cancer cell line 5637 were cultured and divided into control,Adr,Adr+Dex,Dex,and Adr+Dex+NF-κBi groups.CCK-8 and immunofluorescence staining were performed to detect the reactive oxygen species(ROS)contents.Results The myocardial arrangement of the rats in the Adr group was disordered,myocardial cell activity was lower,the mitochondrial membrane potential was lower,ROS production was higher,and NF-κB mRNA and protein contents were sub-stantially lower than those in the control group.The cardiomyocyte morphology was improved,cell activity was higher,mitochondrial mem-brane potential was increased,ROS production decreased,and NF-κB expression significantly increased in the Adr+Dex group compared with those in the control group.The mitochondrial membrane potential in the Adr+Dex+NF-κBi group was lower,and ROS generation was increased compared with the control group.The activity of the tumor cells in the Adr group was lower,and no statistically significant diffe-rences were found compared with that in the Adr+Dex group.Conclusion Treatment with Dex may not affect the chemotherapeutic effects of Adr.Dex administration may increase the myocardial mitochondrial membrane potential and reduce ROS generation by regu-lating NF-κB levels,thereby reducing Adr-induced myocardial damage.