Objective To explore the predictive efficiency of serum Dickkopf-1 protein(DKK-1)and C1q tumor necrosis factor-related protein 3(CTRP3)levels for thoracolumbar fractures in patients with osteoporosis(OP).Methods Between January 2020 and August 2024,124 OP patients treated at the hospital were recruited into the OP group.Based on the occurrence of thoracolumbar fractures,these OP patients were divided into a non-fracture group(n=70)and a fracture group(n=54).Additionally,124 healthy individuals who underwent physical examinations served as the control group.The enzyme-linked immunosorbent assay(ELISA)was employed to measure the levels of serum DKK-1 and CTRP3.Multivariate logistic regression analysis was utilized to analyze the influencing factors of thoracolumbar fractures in OP patients.Receiver operating characteristic(ROC)curves were used to evaluate the predictive value of serum DKK-1 and CTRP3 for thoracolumbar fractures in OP patients.Results In comparison with the control group,the serum level of DKK-1 was significantly higher,while the serum level of CTRP3 was significantly lower in the OP group(P<0.05).When compared with the non-fracture group,the fracture group exhibited prominently higher serum DKK-1 levels,age,duration of OP,and proportion of OP grade Ⅲ,whereas the serum CTRP3 level was significantly lower(P<0.05).High expression of DKK-1 was iden-tified as an independent risk factor for thoracolumbar fractures in patients with osteoporosis,while high expression of CTRP3 was found to be an independent protective factor for thoracolumbar fractures in such patients(P<0.05).The area under the curve(AUC)values of serum DKK-1 and CTRP3 levels for predicting thoracolumbar fractures in OP patients were 0.790 and 0.753,respectively.The AUC of the combined prediction of the two was 0.888,which was superior to the individual predictions of either one(ZDKK-1-combined=3.351,ZCTRP3-combined=3.172,both P<0.05).Conclusions In the serum of OP patients,the expression of DKK-1 is upregulated,while the expression of CTRP3 is downregulated.Both are factors influencing the occurrence of thoracolumbar fractures in OP patients.The combination of the two has a high predictive value for the occurrence of thoracolumbar fractures in OP patients.

Objective To explore the predictive efficiency of serum Dickkopf-1 protein(DKK-1)and C1q tumor necrosis factor-related protein 3(CTRP3)levels for thoracolumbar fractures in patients with osteoporosis(OP).Methods Between January 2020 and August 2024,124 OP patients treated at the hospital were recruited into the OP group.Based on the occurrence of thoracolumbar fractures,these OP patients were divided into a non-fracture group(n=70)and a fracture group(n=54).Additionally,124 healthy individuals who underwent physical examinations served as the control group.The enzyme-linked immunosorbent assay(ELISA)was employed to measure the levels of serum DKK-1 and CTRP3.Multivariate logistic regression analysis was utilized to analyze the influencing factors of thoracolumbar fractures in OP patients.Receiver operating characteristic(ROC)curves were used to evaluate the predictive value of serum DKK-1 and CTRP3 for thoracolumbar fractures in OP patients.Results In comparison with the control group,the serum level of DKK-1 was significantly higher,while the serum level of CTRP3 was significantly lower in the OP group(P<0.05).When compared with the non-fracture group,the fracture group exhibited prominently higher serum DKK-1 levels,age,duration of OP,and proportion of OP grade Ⅲ,whereas the serum CTRP3 level was significantly lower(P<0.05).High expression of DKK-1 was iden-tified as an independent risk factor for thoracolumbar fractures in patients with osteoporosis,while high expression of CTRP3 was found to be an independent protective factor for thoracolumbar fractures in such patients(P<0.05).The area under the curve(AUC)values of serum DKK-1 and CTRP3 levels for predicting thoracolumbar fractures in OP patients were 0.790 and 0.753,respectively.The AUC of the combined prediction of the two was 0.888,which was superior to the individual predictions of either one(ZDKK-1-combined=3.351,ZCTRP3-combined=3.172,both P<0.05).Conclusions In the serum of OP patients,the expression of DKK-1 is upregulated,while the expression of CTRP3 is downregulated.Both are factors influencing the occurrence of thoracolumbar fractures in OP patients.The combination of the two has a high predictive value for the occurrence of thoracolumbar fractures in OP patients.

Objective:To identify the classification characteristics and quality of life (QOL) of breast cancer (BC) patients during chemotherapy, so as to provide basis for improving the sleep and QOL of this group.Methods:A cross-sectional investigation was completed among 421 BC patients in 5 tertiary hospitals in Shanghai, Wuhan, Tangshan and Nanning in 1-12 months of 2016 using validated instruments including self-made general information questionnaire, Pittsburgh Sleep Quality Index (PSQI) and Functional Assessment of Cancer Therapy-Breast (FACT-B).Results:Four latent class of patients were identified through latent profile analysis (LPA), named by badly worse sleep quality(SQ) (C1, n=23), medium-SQ with difficulty to fall asleep (C2, n=127), medium-SQ with worse sleeping process (C3, n=30), none sleep disorders (C4, n=241). Total points of SQ among C1-C4 had significant difference ( χ2 value was 309.28, P<0.05). Age, BMI, job status, whether had surgery and course of chemotherapy between classes had statistically significant differences ( χ2 values were 9.57-25.28, all P<0.05). It had significant difference between C2 and C3, C2 and C4, C3 and C1, C3 and C4 on QOL ( χ2 values were 5.96-52.73, all P<0.05). Conclusion:SQ of BC patients during chemotherapy has heterogeneity among population. Different features of SQ of BC patients have different performance on QOL. Health professionals should keep an eye on patients with features of older age, high BMI, in job status, already received surgery and during early-stage chemotherapy, provide personal nursing intervention to improve SQ and QOL.

Objective To investigate the effects of dorsal hippocampal lesions (DH) or fimbria-fornix transection (FF) on the learning and memory of conditioned fear and the heart rate and blood pressure in rats.Methods Nineteen male adult Wistar rats were used in this experiment.They were implanted telemetry sensors in their abdominal aortas.Two week later,six of the rats were subjected to permanent NMDA-induced neurotoxic lesions to the dorsal hippocampus (DH) and seven for the fimbria-fornix transection (FF)through stereotactic brain surgery,the left six were treated with saline as the control (Sham).All rats were subjected to a conditioned fear experiment.Meanwhile,changes in heart rate and blood pressure were measured.Results There was no significant difference in heart rate and blood pressure among the rats with the hippocampal operation or fimbria-fornix transection.In the acquisition of conditioned fear,there were significant difference in freezing time among the three group in both inter-trial-interval (ITI) and conditioned stimulus (CS) process (all P＜0.05).The freezing time of the FF group showed significantly lower than that of the Sham group (P＜0.05).There was no significant difference in heart rate and blood pressure among the three group(P＞0.05).In the test of conditioned contextual fear memory,the freezing time percentage in the FF group ((0.31±0.16) ％) significantly lower than that in the Sham group ((2.78± 1.23) ％) (P＜0.05)at the first 3 min of the test.There was a significant difference in heart rate among the three group.The heart rate of FF group ((436.42± 10.16) times/min) was significantly lower than that of the Sham group ((472.48±4.43) times/min,P＜0.01) and the DH group ((469.94 ±7.36)times/min,P＜0.01).In the test of conditioned tone fear memory.The freezing time percentage in FF group ((18.78±6.29) ％) was significantly lower than that in the Sham ((51.77±9.33)％,P＜0.01) and DH group ((59.19±8.13)％,P＜0.01),but the freezing time percentage between the later two groups had no difference (P=0.52).The synchronous telemetry measurement showed there was no significant difference both in the heart rate and the blood pressure among the groups (all P＞0.05) during the conditioned tone test.Conclusion The dorsal hippocampal lesions and fimbria-fornix transection in rats can significantly reduce the learning and memory ability in conditioned fear and scene fear in rats,and the effect of fimbria-fornix transection is more obvious.The decrease in,fear memory is not synchronously reflected in heart rate and blood pressure in rats.

In recent years, cancer stem cells have become a hotspot for global researchers. Cancer stem cell theory deems that cells with self-renewal and differentiation potential play a key role in tumor resistance and relapse. These cells are named cancer stem cells. At present, the sorting methods include the side population cell sorting technique, screening techniques based on cell surface special markers, tumor sphere cultures, label retaining cell, ALDEFLUOR assays and so on. Side population cells are a small part of cells with the capacity of efflux DNA fluorescent dye Hoechst 33342 and present a low staining intensity in flow cytometry plot. Side population cells are rich in cancer stem cells, and its sorting method has been considered simple and effective in cancer stem cell research.
Flow Cytometry ; Humans ; Neoplasms ; Neoplastic Stem Cells ; Side-Population Cells