Objective:To develop a treatment-related quality of life scale for Chinese patients with multiple myeloma (MM) and to test its reliability and validity.Methods:The initial scale was constructed through a literature search, Delphi expert correspondence, and cognitive testing. This study conducted a preliminary survey of 379 patients with MM and a formal survey of 865 patients from the hematology departments of 155 hospitals nationwide from February 2024 to March 2024. The final scale was obtained after conducting item analysis and reliability and validity tests on the initial scale.Results:The constructed scale contains 36 items covering six domains: physiological, psychological, social, treatment side effects, general health, and others. In the preliminary survey, the Cronbach’s alpha coefficient of each item ranged from 0.597 to 0.939, and the test-retest reliability was 0.747 ( P<0.001). Exploratory factor analysis extracted eight common factors with a cumulative variance contribution of 60.058%. In the formal survey, the Cronbach’s alpha coefficient of each item ranged from 0.484 to 0.930, and the test-retest reliability was 0.835 ( P<0.001). Confirmatory factor analysis revealed a comparative fit index of 0.750, a root-mean-square error of approximation of 0.090, and a root-mean-square residual of 0.067. Conclusion:The treatment-related quality of life scale for Chinese patients with MM designed in this study exhibited good reliability and validity, reflecting the impact of treatment on the quality of life of patients. This scale can provide a reference to clinicians for assessing the disease status of patients.

Objective:To develop a treatment-related quality of life scale for Chinese patients with multiple myeloma (MM) and to test its reliability and validity.Methods:The initial scale was constructed through a literature search, Delphi expert correspondence, and cognitive testing. This study conducted a preliminary survey of 379 patients with MM and a formal survey of 865 patients from the hematology departments of 155 hospitals nationwide from February 2024 to March 2024. The final scale was obtained after conducting item analysis and reliability and validity tests on the initial scale.Results:The constructed scale contains 36 items covering six domains: physiological, psychological, social, treatment side effects, general health, and others. In the preliminary survey, the Cronbach’s alpha coefficient of each item ranged from 0.597 to 0.939, and the test-retest reliability was 0.747 ( P<0.001). Exploratory factor analysis extracted eight common factors with a cumulative variance contribution of 60.058%. In the formal survey, the Cronbach’s alpha coefficient of each item ranged from 0.484 to 0.930, and the test-retest reliability was 0.835 ( P<0.001). Confirmatory factor analysis revealed a comparative fit index of 0.750, a root-mean-square error of approximation of 0.090, and a root-mean-square residual of 0.067. Conclusion:The treatment-related quality of life scale for Chinese patients with MM designed in this study exhibited good reliability and validity, reflecting the impact of treatment on the quality of life of patients. This scale can provide a reference to clinicians for assessing the disease status of patients.

Objective:To explore the risk factors for different severities of epiphyseal injury caused by distal tibial fractures in adolescents.Methods:A retrospective analysis was conducted on 195 children with distal tibial fractures accompanied by epiphyseal injuries who were admitted to the Honghui Hospital Affiliated to Xi'an Jiaotong University from January 2018 to December 2023. Among them, there were 132 males and 63 females; the age was 11.7±2.1 years (range, 5-15 years). Among them, 91 cases were on the left side and 104 cases were on the right side. Salter-Harris classification of epiphyseal injuries: there were 42 cases of type I, 90 cases of type II, 34 cases of type III, 26 cases of type IV, and 3 cases of type V. Causes of injury: 37 cases were sports injuries, 29 cases were traffic accident injuries, 120 cases were fall injuries, and 9 cases were fall from height injuries. Dias-Tachdjian classification of injury mechanisms: there were 65 cases of supination-adduction type, 59 cases of supination-plantar flexion type, 35 cases of supination-external rotation type, and 36 cases of pronation-abduction-external rotation type. Among them, 72 cases were complicated with fibular fractures, and 56 cases were accompanied by periosteum incarceration. The age, gender, side of injury, body mass index, cause of injury, presence or absence of fibular fracture, and injury mechanism of children with each type of Salter-Harris injury were compared. The indicators with statistically significant differences were included in the multiple logistic regression analysis to determine the independent risk factors for each type of Salter-Harris injury.Results:The ages of patients with type I-IV were 10.70±2.77, 12.18±1.70, 11.32±2.08, 12.35±1.19, and 11.67±2.08 years old respectively, and the difference was statistically significant ( F=4.794, P=0.001). The body mass indexes were 11.90±3.84, 21.30±4.48, 21.41±4.08, 22.42±3.74, and 24.32±4.82 kg/m 2 respectively, and the difference was statistically significant ( F=1.914, P=0.009). The numbers of cases of sports injuries/traffic accident injuries/fall injuries/fall-from-height injuries were 6/7/23/6, 17/12/59/2, 6/5/22/1, 7/4/15/0, and 1/1/1/0 respectively, and the difference was statistically significant ( P=0.032). The numbers of cases of supination-adduction/pronation-abduction-external rotation/supination-plantar flexion/supination-external rotation were 21/6/9/6, 21/16/37/16, 19/6/8/1, 4/7/4/11, and 0/1/1/1 respectively, and the difference was statistically significant ( P=0.001). The numbers of cases of periosteum incarceration (none/yes) were 32/10, 54/36, 27/7, 25/1, and 1/2 respectively, and the difference was statistically significant (χ 2=17.156, P=0.002). There was no statistically significant difference in gender, side of injury, and presence or absence of fibular fracture among patients with each type of epiphyseal injury ( P>0.05). Age, body mass index, cause of injury, injury mechanism, and periosteum incarceration were included in the multiple logistic regression analysis. The results showed that age [ OR=1.337, 95% CI (1.097, 1.628), P=0.004], the supination varus type of the injury mechanism [ OR=0.257, 95% CI (0.075, 1.013), P=0.015] in the Salter-Harris type II, and the supination plantar flexion type of the injury mechanism [ OR=0.154, 95% CI (0.027, 0.872), P=0.034] in the Salter-Harris type IV were independent risk factors for the severity of epiphyseal injury caused by distal tibial fractures in adolescents. Conclusion:The severity of distal tibial fractures accompanied by epiphyseal injuries in adolescents is related to multiple factors such as age, body mass index, cause of injury, injury mechanism, and periosteum incarceration. For every one-year increase in age, the risk of epiphyseal injury in children with Salter-Harris type II is 1.337 times higher than that in those with type I. The type I epiphyseal injury caused by supination varus injury is 3.891 times that of type II injury, and the type I epiphyseal injury caused by supination plantar flexion injury is 6.493 times that of type IV injury.

Objective:To explore the risk factors for different severities of epiphyseal injury caused by distal tibial fractures in adolescents.Methods:A retrospective analysis was conducted on 195 children with distal tibial fractures accompanied by epiphyseal injuries who were admitted to the Honghui Hospital Affiliated to Xi'an Jiaotong University from January 2018 to December 2023. Among them, there were 132 males and 63 females; the age was 11.7±2.1 years (range, 5-15 years). Among them, 91 cases were on the left side and 104 cases were on the right side. Salter-Harris classification of epiphyseal injuries: there were 42 cases of type I, 90 cases of type II, 34 cases of type III, 26 cases of type IV, and 3 cases of type V. Causes of injury: 37 cases were sports injuries, 29 cases were traffic accident injuries, 120 cases were fall injuries, and 9 cases were fall from height injuries. Dias-Tachdjian classification of injury mechanisms: there were 65 cases of supination-adduction type, 59 cases of supination-plantar flexion type, 35 cases of supination-external rotation type, and 36 cases of pronation-abduction-external rotation type. Among them, 72 cases were complicated with fibular fractures, and 56 cases were accompanied by periosteum incarceration. The age, gender, side of injury, body mass index, cause of injury, presence or absence of fibular fracture, and injury mechanism of children with each type of Salter-Harris injury were compared. The indicators with statistically significant differences were included in the multiple logistic regression analysis to determine the independent risk factors for each type of Salter-Harris injury.Results:The ages of patients with type I-IV were 10.70±2.77, 12.18±1.70, 11.32±2.08, 12.35±1.19, and 11.67±2.08 years old respectively, and the difference was statistically significant ( F=4.794, P=0.001). The body mass indexes were 11.90±3.84, 21.30±4.48, 21.41±4.08, 22.42±3.74, and 24.32±4.82 kg/m 2 respectively, and the difference was statistically significant ( F=1.914, P=0.009). The numbers of cases of sports injuries/traffic accident injuries/fall injuries/fall-from-height injuries were 6/7/23/6, 17/12/59/2, 6/5/22/1, 7/4/15/0, and 1/1/1/0 respectively, and the difference was statistically significant ( P=0.032). The numbers of cases of supination-adduction/pronation-abduction-external rotation/supination-plantar flexion/supination-external rotation were 21/6/9/6, 21/16/37/16, 19/6/8/1, 4/7/4/11, and 0/1/1/1 respectively, and the difference was statistically significant ( P=0.001). The numbers of cases of periosteum incarceration (none/yes) were 32/10, 54/36, 27/7, 25/1, and 1/2 respectively, and the difference was statistically significant (χ 2=17.156, P=0.002). There was no statistically significant difference in gender, side of injury, and presence or absence of fibular fracture among patients with each type of epiphyseal injury ( P>0.05). Age, body mass index, cause of injury, injury mechanism, and periosteum incarceration were included in the multiple logistic regression analysis. The results showed that age [ OR=1.337, 95% CI (1.097, 1.628), P=0.004], the supination varus type of the injury mechanism [ OR=0.257, 95% CI (0.075, 1.013), P=0.015] in the Salter-Harris type II, and the supination plantar flexion type of the injury mechanism [ OR=0.154, 95% CI (0.027, 0.872), P=0.034] in the Salter-Harris type IV were independent risk factors for the severity of epiphyseal injury caused by distal tibial fractures in adolescents. Conclusion:The severity of distal tibial fractures accompanied by epiphyseal injuries in adolescents is related to multiple factors such as age, body mass index, cause of injury, injury mechanism, and periosteum incarceration. For every one-year increase in age, the risk of epiphyseal injury in children with Salter-Harris type II is 1.337 times higher than that in those with type I. The type I epiphyseal injury caused by supination varus injury is 3.891 times that of type II injury, and the type I epiphyseal injury caused by supination plantar flexion injury is 6.493 times that of type IV injury.

Objective:To investigate the effect of protocatechuic acid on chronic neuropathic pain (NP) and its mechanism in rats.Methods:NP models were established in 32 SD rats by sciatic nerve ligation, and they were randomly divided into model group, low- and high-dose protocatechuic acid groups, and ibuprofen group ( n=8); on the 3 rd d of modeling, rats in the latter 3 groups were given 10 or 20 mg/kg protocatechuic acid solution via jugular vein injection or 20 mg/kg ibuprofen tablets by gavage, once a d for consecutive 21 d. A sham-operated group ( n=8) was set up; the sciatic nerve was dissociated but not ligated. The behavioral performance of rats in each group was continuously observed; on the 7 th, 14 th and 21 st d of administration, the mechanical pain threshold of both hind limbs of rats was measured by von-Frey filament stimulation and the thermal pain threshold was measured by BME-410A thermal pain stimulator. Then, rats were sacrificed. The serum levels of tumor necrosis factor α (TNF-α) and interleukin-1β (IL-1β) were detected by ELISA. Cell apoptosis in the spinal cord tissues was observed by TUNEL. Western blotting was used to detect the expressions of nuclear factor-κB (NF-κB)/NOD-like receptor pyrin domain-related protein 3 (NLRP3) signaling pathway related proteins in the spinal cord tissues. Results:On the 7 th, 14 th, and 21 st d of administration, the thermal pain threshold and mechanical pain threshold in the model group were significantly decreased as compared with those in the sham-operated group ( P<0.05); as compared with those in the model group, those in the low- and high-dose protocatechuic acid groups and ibuprofen group were significantly increased ( P<0.05); as compared with those in the low-dose protocatechuic acid group, those in the high-dose protocatechuic acid group and ibuprofen group were significantly increased ( P<0.05); those in the ibuprofen group were significantly increased as compared with those in the high-dose protocatechuic acid group ( P<0.05). (2) On the 21 st d of administration, as compared with those in sham-operated group, the serum levels of TNF-α and IL-1β and number of apoptotic cells in the spinal cord tissues of the model group were significantly increased ( P<0.05); as compared with those in the model group, those in the low- and high-dose protocatechuic acid groups and ibuprofen group were significantly decreased ( P<0.05); as compared with those in the low-dose protocatechuic acid group, those in the high-dose protocatechuic acid group and ibuprofen group were significantly decreased ( P<0.05); those in the ibuprofen group were significantly decreased as compared with those in the high-dose protocatechuic acid group ( P<0.05). (3) On the 21 st d of administration, the protein expressions of phosphorylated (p)-NF-κb-65 (0.77±0.05), NLRP3 (1.03±0.08), apoptosis-associated speck-like protein containing a CARD (ASC), Caspase-1 and IL-1β in the spinal cord of rats in the model group were significantly increased as compared with those in the sham-operated group ( P<0.05); as compared with those in the model group, those in the low- and high-dose protocatechuic acid groups were significantly decreased (p-NF-κB-65: 0.49±0.03, 0.25±0.02; NLRP3: 0.81±0.06, 0.69±0.04; P<0.05); as compared with those in the low-dose protocatechuic acid group, those in the high-dose protocatechuic acid group were significantly decreased ( P<0.05). Conclusion:Protocatechuic acid may alleviate pain in chronic NP rats by downregulating NF-κB/NLRP3 signaling pathway transduction.