Objective We investigated the clinical features and the potential risk factors of malnutrition in patients with chronic heart failure(CHF),and constructed the risk prediction model of malnutrition.Methods A total of459 CHF patients admitted between January 2023 and July 2024 were classified into a normal nutrition group and a malnutrition group based on the geriatric Nutrition Risk Index(GNRI)score upon admission.The patient-related data were gathered,and single-variable and multi-variable logistic analyses were first carried out to identify the risk factors associated with the malnutrition risk.Subsequently,the stepwise regression approach was employed to define the inclusion criteria and construct a malnutrition nomogram model for CHF patients.The diagnostic efficacy and calibration of this model were appraised using the ROC curve and calibration curve,and its clinical utility was assessed via the clinical decision curve.A P value less than 0.05 signified statistically significant differences.Results Anxiety(OR=1.1902,95%CI:1.0217～1.3865),urea nitrogen(OR=1.4842,95%CI:1.1187～1.9691),low body weight(OR=0.8463,95%CI:0.7852～0.9121),and low albumin(OR=0.0467,95%CI:0.0172～0.1268)were risk factors for malnutrition.The optimal model inclusion factors were selected by stepwise regression,including:Body weight,7 items of Generalized Anxiety Disorder Scale(GAD-7),urea nitrogen,uric acid,albumin,total cholesterol,high density lipoprotein cholesterol(HDL-L),low density lipoprotein cholesterol(LDL-L),D-dimer.The area under the ROC curve(AUC)of the column chart model based on the above factors is 0.996(95%CI:0.971～0.978),with a sensitivity of 97.8%and a specificity of 97.1%.The C-index validated internally in the calibration curve was 0.824.The calibration chart and validation results demonstrate good consis-tency and applicability.Conclusion The column chart prediction model created in this study based on nine factors including body weight,GAD-7,urea nitrogen,uric acid,albumin,total cholesterol,HDL-L,LDL-L,and D-dimer had good calibration and prediction performance,and had good clinical practicality,which was helpful for clinicians to make diagnosis and treatment decisions for malnutrition in CHF patients.

There are difficulties in the treatment of Alzheimer's disease (AD) in medical community. Since the surgery of cervical deep lymphatic vessel/lymphatic node-vein anastomosis (LVA/LnVA) has made clinical improvement in patients with AD, it offers a surgical option to treat AD. Especially improvements in cognitive impairment. However the mechanism in treatment of AD is not yet made clear. This article preliminarily explores the mechanism in improvement of some symptoms in patients with AD through cervical deep LVA/LnVA on the basis of morphological characteristics of the cribriform plate-cervical lymphatic pathway.

Objective We investigated the clinical features and the potential risk factors of malnutrition in patients with chronic heart failure(CHF),and constructed the risk prediction model of malnutrition.Methods A total of459 CHF patients admitted between January 2023 and July 2024 were classified into a normal nutrition group and a malnutrition group based on the geriatric Nutrition Risk Index(GNRI)score upon admission.The patient-related data were gathered,and single-variable and multi-variable logistic analyses were first carried out to identify the risk factors associated with the malnutrition risk.Subsequently,the stepwise regression approach was employed to define the inclusion criteria and construct a malnutrition nomogram model for CHF patients.The diagnostic efficacy and calibration of this model were appraised using the ROC curve and calibration curve,and its clinical utility was assessed via the clinical decision curve.A P value less than 0.05 signified statistically significant differences.Results Anxiety(OR=1.1902,95%CI:1.0217～1.3865),urea nitrogen(OR=1.4842,95%CI:1.1187～1.9691),low body weight(OR=0.8463,95%CI:0.7852～0.9121),and low albumin(OR=0.0467,95%CI:0.0172～0.1268)were risk factors for malnutrition.The optimal model inclusion factors were selected by stepwise regression,including:Body weight,7 items of Generalized Anxiety Disorder Scale(GAD-7),urea nitrogen,uric acid,albumin,total cholesterol,high density lipoprotein cholesterol(HDL-L),low density lipoprotein cholesterol(LDL-L),D-dimer.The area under the ROC curve(AUC)of the column chart model based on the above factors is 0.996(95%CI:0.971～0.978),with a sensitivity of 97.8%and a specificity of 97.1%.The C-index validated internally in the calibration curve was 0.824.The calibration chart and validation results demonstrate good consis-tency and applicability.Conclusion The column chart prediction model created in this study based on nine factors including body weight,GAD-7,urea nitrogen,uric acid,albumin,total cholesterol,HDL-L,LDL-L,and D-dimer had good calibration and prediction performance,and had good clinical practicality,which was helpful for clinicians to make diagnosis and treatment decisions for malnutrition in CHF patients.

There are difficulties in the treatment of Alzheimer's disease (AD) in medical community. Since the surgery of cervical deep lymphatic vessel/lymphatic node-vein anastomosis (LVA/LnVA) has made clinical improvement in patients with AD, it offers a surgical option to treat AD. Especially improvements in cognitive impairment. However the mechanism in treatment of AD is not yet made clear. This article preliminarily explores the mechanism in improvement of some symptoms in patients with AD through cervical deep LVA/LnVA on the basis of morphological characteristics of the cribriform plate-cervical lymphatic pathway.

Objective To investigate the effect of fluid flow shear stress(FFSS)on the fluid mechanic threshold of high-mobility group box 1(HMGB1)release by synovial cells and chondrocytes.Moreover,the mechanism of chondro-cyte and synovial cell damage induced by abnormal mechanical force was investigated to provide an experimental basis for exploring the pathogenesis and pathology of temporomandibular joint osteoarthritis.Methods With the approval of the Ethics Committee for Animal Experiments of the hospital,synovial tissue and cartilage tissue blocks were obtained from the knee joints of Sprague-Dawley(SD)rats,and synovial cells and chondrocytes were cultured and digested for subsequent experiments.Synovial cells and chondrocytes of 3-4 generations were acquired,and FFSS was applied to sy-novial and cartilage cells using a fluid shear mechanical device.The cells were divided according to the FFSS values of different sizes.Synovial cells were stimulated for 1 h with 1,3,5,or 10 dyn/cm2 of FFSS,and chondrocytes were stimu-lated for 1 h with 4,8,12,or 16 dyn/cm2 of FFSS.Resting cultures(0 dyn/cm2)were used as the control group.Changes in the morphology of the cells were observed.The expression and distribution of HMGB1 and interleukin-1β(IL-1β)were observed by immunohistochemistry.The expression of HMGB1 and IL-1β in the supernatant was analyzed by ELI-SA.The protein expression levels of intracellular HMGB1 and IL-1β were detected by Western blot.Results With in-creasing FFSS,the synovial cells and chondrocytes gradually swelled and ruptured,and the number of cells decreased.With increasing FFSS,the localizationof HMGB1 and IL-1β gradually shifted from the nucleus to the cytoplasm.In synovial cells,compared with those in the control group,the expression levels of HMGB1 and IL-1β were increased both in the supernatant and cells in the 1,3,5 and 10 dyn/cm2 intervention groups(P＜0.01).In chondrocytes,com-pared with those in the control group,the expression levels of HMGB1 in the supernatant were increased in the 4,12 and 16 dyn/cm2 intervention groups(P＜0.05),and the protein expression levels of HMGB1 were significantly increased(P＜0.01).The expression levels of HMGB1 in the supernatant were significantly increased in the 8 dyn/cm2 intervention groups(P＜0.01);however,the protein expression levels of HMGB1 were significantly decreased.Compared with those in the control group,the expression levels of IL-1β in the supernatant gradually increased in the 4,8,12 and 16 dyn/cm2 intervention groups(P＜0.01).With the exception of those in the 4 dyn/cm2 group,the protein expression levels of IL-1β gradually increased with increasing FFSS(P＜0.05).Conclusion With increasing FFSS,synovial cells and chondro-cytes gradually swelled and burst,and the hydromechanical thresholds of HMGB1 release were 1 dyn/cm2 and 8 dyn/cm2,respectively.Therefore,upon stimulation with a mechanical force,synovial damage was damaged before chondrocytes.

BACKGROUND: The cardiomyocyte apoptosis is considered as one of major contributions to cardiac remodeling after myocardial infarction (MI). Numerous studies find that circular RNAs (circRNAs) play pivotal roles in a variety of biological functions. However, the role of circ_0068655 in MI and human induced pluripotent stem-derived cardiomyocytes (HCMs) remains unknown. METHODS: The expression of circ_0068655, miR-498, and PRKC apoptosis WT1 regulator (PAWR) in human MI heart tissues and hypoxia subjected HCMs was evaluated with qRT-PCR and Western blot. The effects of circ_0068655 on hypoxia-induced apoptotic death and cell migration in HCMs were evaluated with qRT-PCR, cell viability, cell death ELISA (POD), and Caspase-3 activity assay, and Trans-well assay, respectively. Furthermore, luciferase assay, qRT-PCR, biotin-labeled miRNA pulldown assay, and Western blot were employed in the functional studies. RESULTS: We found that the expression of circ_0068655 and PAWR was enhanced in MI patients and hypoxia subjected HCMs; by contrast, the expression of miR-498 decreased. Inhibited expression of circ_0068655 in HMCs counteracted hypoxia-induced apoptotic death and impaired cell migration, in sharp contrast to circ_0068655 knockdown. We identified that circ_0068655 sponged an endogenous miR-498 to sequester and inhibit its activity, leading to the increased PAWR expression. CONCLUSIONS Our findings reveal that the expression of circ_0068655 can promote cardiomyocyte apoptosis through the modulation of miR-498-PAWR axis in vitro, which highlights the diagnostic and therapeutic value of circ_0068655 in patients with MI.

BACKGROUND: The cardiomyocyte apoptosis is considered as one of major contributions to cardiac remodeling after myocardial infarction (MI). Numerous studies find that circular RNAs (circRNAs) play pivotal roles in a variety of biological functions. However, the role of circ_0068655 in MI and human induced pluripotent stem-derived cardiomyocytes (HCMs) remains unknown. METHODS: The expression of circ_0068655, miR-498, and PRKC apoptosis WT1 regulator (PAWR) in human MI heart tissues and hypoxia subjected HCMs was evaluated with qRT-PCR and Western blot. The effects of circ_0068655 on hypoxia-induced apoptotic death and cell migration in HCMs were evaluated with qRT-PCR, cell viability, cell death ELISA (POD), and Caspase-3 activity assay, and Trans-well assay, respectively. Furthermore, luciferase assay, qRT-PCR, biotin-labeled miRNA pulldown assay, and Western blot were employed in the functional studies. RESULTS: We found that the expression of circ_0068655 and PAWR was enhanced in MI patients and hypoxia subjected HCMs; by contrast, the expression of miR-498 decreased. Inhibited expression of circ_0068655 in HMCs counteracted hypoxia-induced apoptotic death and impaired cell migration, in sharp contrast to circ_0068655 knockdown. We identified that circ_0068655 sponged an endogenous miR-498 to sequester and inhibit its activity, leading to the increased PAWR expression. CONCLUSIONS Our findings reveal that the expression of circ_0068655 can promote cardiomyocyte apoptosis through the modulation of miR-498-PAWR axis in vitro, which highlights the diagnostic and therapeutic value of circ_0068655 in patients with MI.

Objective To study nursing of polymyositis/dermatomyositis associated respiratory damage in 83 cases.Methods A total of 83 polymyositis/dermatomyositis patients with respiratory damage were selected as research objects, the nursing staff implemented targeted nursing during the treatment, and the nursing effect was observed.Results Out of 83 cases, 1 died of respiratory failure, 3 autonomously gave up treatment, disease condition of 79 was effectively controlled and were discharged after improvement, and the total effective rate was 95.18%.Conclusion Analysis of the causes by the nursing staff according to specific symptoms and corresponding nursing measures for polymyositis/dermatomyositis patients with respiratory damage during the treatment can improve the curative effect, and improve outcomes of disease.

Objective To study nursing of polymyositis/dermatomyositis associated respiratory damage in 83 cases.Methods A total of 83 polymyositis/dermatomyositis patients with respiratory damage were selected as research objects, the nursing staff implemented targeted nursing during the treatment, and the nursing effect was observed.Results Out of 83 cases, 1 died of respiratory failure, 3 autonomously gave up treatment, disease condition of 79 was effectively controlled and were discharged after improvement, and the total effective rate was 95.18%.Conclusion Analysis of the causes by the nursing staff according to specific symptoms and corresponding nursing measures for polymyositis/dermatomyositis patients with respiratory damage during the treatment can improve the curative effect, and improve outcomes of disease.

Objective To explore the application effects of continuing nursing intervention model on treatment compliance, recurrence rate of being in hospital acutely, utilization degree of health services in patients with systemic lupus erythematosus ( SLE ) . Methods A total of 160 inpatients with SLE in the department which the writer was in were recruited from 1 February 2013 to 31 July 2014 and were divided into intervention group ( n=76, continuing nursing intervention model) and control group ( n=84, routine discharge guidance and outpatient follow-up) according to the random number table. The recurrence rate and treatment compliance was compared in patients between two groups 30 d, 90 d, 180 d post discharge. Results The recurrence rates of 30 d, 90 d, 180 d post discharge in intervention group were lower than those in control group and the treatment compliance in intervention group was higher than that in control group with significant differences (P<0.01). The results revealed that the medical cost in intervention group was lower than that in control group. Conclusions Application of continuing nursing intervention model is beneficial to meet the patients′nursing demands, improve the treatment compliance of patients, reduce the treatment of readmission and decrease the cost of medical service.