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.

Adult ; Humans ; Acute Disease ; Leukemia

Objective To evaluate the predictive value of HEART and GRACE scores for risk stratification and 30-day major adverse cardiovascular events (MACE) in patients with acute chest pain in emergency department.Methods This is a prospective observational study.Patients with acute chest pain aged 18 years or older who were first diagnosed in our emergency department were enrolled from January 1,2016 to September 1,2017.The clinical data were collected,and HEART and GRACE scores were calculated.All causes of MACE in each patient were followed up for 30 days.Results This study included 1004 patients with acute chest pain for analysis.Finally this study enrolled 600 patients with an age range of 20-98 years (mean 63.28±15.47 years),351 males (58.5％) and 249 females (41.5％).The age,past history (smoking,coronary heart disease and diabetes),GRACE score and HEART score in MACE patients were significantly higher than those in non-MACE patients (P＜0.05).The area under the ROC curve of HEART and GRACE scores were 0.817 (95％ CI 0.771-0.863) and 0.739 (95％ CI:0.687-0.791),respectively.The percent of patients with 30-day MACE with GRACE score and HEART score were 6.2％ vs 4.1％ in low-risk stratification,19.7％ vs 15.1％ in medium-risk stratification,and 35.1％ vs 56.5％ in high-risk stratification,respectively.Conclusions The HEART score is superior to the GRACE score in predicting 30-day MACE in patients with acute chest pain in emergency department.

AIM: To investigate whether neural stem cell-derived exosomes promote the viability and inhibit the apoptosis of neurons under cobalt chloride(CoCl2)-induced hypoxia in vitro.METHODS:The exosomes were isolated based on ultracentrifugation.The exosomal markers,ALG-2-interacting protein X(Alix)and tumor susceptibility gene 101 (TSG101)were identified by Western blot.The shape of exosomes was observed under transmission electron microscope (TEM).The size distributions of exosomes were analyzed by nanoparticle analysis(qNano).The neurons were exposed in CoCl2at different doses(200~600 μmol/L)for 24 h.The exosomes were co-cultured with the neurons pre-treated with CoCl2.The viability and apoptosis of the neurons were measured by CCK-8 assay and TUNEL method.RESULTS: The exosomes released from the neural stem cells expressed exosomal markers Alix and TSG 101.They also displayed a cup-shaped appearance observed under TEM and their sizes were(95.0 ±23.5)nm(n=370).The neuronal viability was sig-nificantly inhibited by CoCl 2in a dose-dependent manner(P<0.05).After treatment with exosomes,the viability of the neuron pre-treated with CoCl2was increased and the apoptotic rate was decreased(P<0.05).CONCLUSION: Neural stem cell-derived exosomes promote the viability and inhibit the apoptosis of rat neurons uneder hypoxia.

[Objective]To investigate the effect of GRACE scores on prediction of 30-day cardiovascular adverse events in acute chest pain patients.[Methods]A prospective,observational analysis was conducted in the patients with acute chest pain in Emergency Department(ED)from January 1,2016 through April 1,2016.Data including characteris-tics and GRACE scores were collected.All causes leading to MACE were followed up at 30th day after the onset of acute chest pain.[Results]Among a total of 209 patients presenting with acute chest pain enrolled in this study,110 were male (52.63%)and 99 were female(47.37%).The range of age was 20-98years old,and mean age was(65.28±16.85)years old.During follow-up period,12 patients had MACE,2 patients died in ED,3 patients died in hospital,6 patients died out of hospital,and 1 person was diagnosed with myocardial infarction. When compared with non-MACE group,factors including age,BMI,hospitalized patient number,and number of patients admitted in CCU as well as GRACE scores, were significantly higher in MACE group(P<0.05). The predictive ROC curve area of GRACE scores in 30-day MACE was 0.819(0.735 to 0.902). The optimal sensitivity and specificity were 0.92 and 0.65,respectively. The probability of 30-day cardiovascular adverse events in various GRACE score risk stratification was 0.95%(low-risk),6.67%(medi-um-risk),and 18.92%(high-risk),respectively.[Conclusion]The GRACE score was a useful predictor to the occur-rence of 30-day cardiovascular adverse events in acute chest pain patients.

Objective To explore the HEART risk score in predicting 30-day major adverse cardiovascu-lar events (MACE)for the patients presenting to Emergency Department (ED) with acute chest pain. Methods Patients presented in our ED with acute chest pain were enrolled from January,2016 to April,2016. All cause MACE of each patient were followed up at 30 days by Health insurance information management System and call . Results Total 209 patients were enrolled(mean age 65.28 ± 16.85 years;52.63%male). The age,hypertension, ratio of ACS,SpO2,in-patient number HEART score in MACE subject were significantly higher than that in non MACE patients(P<0.05). The blood pressure at admission of MACE patients was significantly decrease than that in non MACE patients(P<0.05). The MACE within 30 days was 5.74%. The respective areas under the curve (AUC)for 30-day MACE(95% CI)was 0.908(0.846 ~ 0.974). The percent of patients with 30-day MACE with HEART scores between 0% and 3,4 ~ 6,and 7 ~ 10 was 0%,2.5%,and 27%,respectively. Conclusion HEART score can be simple,rapid and accurate prediction of emergency department of patients with acute chest pain within 30 days of MACE,effective elimination of low-risk patients with MACE,it plays a very important role for disease assessment and diagnosis and treatment process in emergency department.

Objective To retrospectively evaluate the clinical and radiographic outcomes of immediately loaded full-arch fixed prostheses with All-on-4 concept after 1 year and 3 years of function.Methods A total of 40 dental implants were placed in ten edentulous patients(3 in maxilla,7 in mandible).Follow-up examinations were performed at 6 months,12 months,and thereafter every 12 months.Radiographic assessment of the marginal bone level was performed after 1 and 3 years in function.The marginal bone resorption was compared between tilted and axial implants.Results The success rate of implants was 100％ (40/40) and 97％ (37/38) after 1 and 3 years,respectively.The success rate of prostheses were both 100％.37 after 1 and 3 years.The marginal bone resorption was,on average,(0.96 ±0.25) and (1.48 ± 0.20) mm after 1 and 3 years,respectively.The difference of marginal bone resorption between tilted implants and axial implants was not statistically significant (P ＞ 0.05) after 1 year or after 3 years.Implants presented heahhy peri-implant soft tissue conditions.Conclusions The clinical outcome of edentulous immediate rehabilitation supported by 4 implants was satisfactory after 1 and 3 years in function.

OBJECTIVETo assess the feasibility of high-resolution melting (HRM) analysis for screening patients with neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD).

METHODSBased on previous studies on SLC25A13 gene in Chinese patients with NICCD, four hotspot mutations (851del4, 1638ins23, IVS6+5G>A and IVS16ins3kb) were selected. Results of the HRM analysis was validated using 50 negative controls and 20 patients with NICCD whose genotypes were confirmed previously by direct sequencing. With the established protocol, 171 suspected patients were enrolled. Samples with abnormal melting curves were further validated by DNA sequencing.

RESULTSHRM analysis can accurately determine the genotypes of all negative controls and patients. The sensitivity and specificity of the technique reached 100% (70/70). The melting curves of samples with the same genotype were highly reproducible. In 171 suspected patients, seven NICCD patients were detected by HRM. Identified mutations have included one case of 851del4 homozygote, one case of IVS6+5G>A heterozygote, 3 cases of 851del4 heterozygotes, one case of [IVS6+5G>A]+[ 851del4] and one case of [1638ins23+IVS16ins3kb]+[1638ins23]. All mutations were subsequently confirmed by DNA sequencing.

CONCLUSIONHRM analysis is a convenient, high-throughput and rapid technique for the screening of NICCD patients.

Anion Transport Proteins ; genetics ; Base Sequence ; Calcium-Binding Proteins ; deficiency ; China ; Citrullinemia ; diagnosis ; genetics ; metabolism ; DNA ; chemistry ; genetics ; Genetic Predisposition to Disease ; Genotype ; Humans ; Mitochondrial Proteins ; genetics ; Molecular Sequence Data ; Mutation ; Nucleic Acid Denaturation ; Organic Anion Transporters ; deficiency ; Sensitivity and Specificity

OBJECTIVETo review clinical features of four male patients with glutaric academia type I and screen glutaryl-CoA dehydrogenase (GCDH) gene mutations.

METHODSThe 4 patients underwent brain computer tomography (CT) and magnetic resonance imaging (MRI) analyses. Blood acylcarnitine and urine organic acid were analyzed with tandem mass spectrometry and gas chromatographic mass spectrometry. Genomic DNA was extracted from peripheral blood samples. The 11 exons and flanking sequences of GCDH gene were amplified with PCR and subjected to direct DNA sequencing.

RESULTSAll patients have manifested macrocephaly, with head circumference measured 50 cm (14 months), 47 cm (9 months), 46 cm (5 months) and 51 cm (14 months), respectively. Imaging analyses also revealed dilation of Sylvian fissure and lateral ventricles, frontotemporal atrophy, subarachnoid space enlargement and cerebellar vermis abnormalities. All patients had elevated glutarylcarnitine (5.8 umol/L, 7.5 umol/L, 8.3 umol/L and 7.9 umol/L, respectively) and high urinary excretion of glutaric acid. Seven mutations were identified among the patients, among which c.146_149del4, IVS6-4_Ex7+4del8, c.508A>G (p.K170E), c.797T>C (p.M266T) and c.420del10 were first discovered.

CONCLUSIONMacrocephaly and neurological impairment are the most prominent features of glutaric academia type I. Blood tandem mass spectrometry and urine gas chromatographic mass spectrometry analysis can facilitate the diagnosis. The results can be confirmed by analysis of GCDH gene mutations.

Amino Acid Metabolism, Inborn Errors ; diagnosis ; genetics ; metabolism ; Amino Acid Sequence ; Base Sequence ; Brain Diseases, Metabolic ; diagnosis ; genetics ; metabolism ; Glutaryl-CoA Dehydrogenase ; deficiency ; genetics ; metabolism ; Humans ; Infant ; Male ; Molecular Sequence Data ; Mutation ; Sequence Alignment