Salmonella,an important foodborne pathogen,is responsible for numerous diseases in both humans and animals.We conducted a genome-wide analysis of Salmonella isolates from diarrheal and foodborne infection cases in Gansu Province between 2021 and 2023.A total of 163 Salmonella strains were collected and subjected to biochemical identification,followed by serological typing,whole-genome sequencing,and bioinformatics characterization.The results revealed 27 distinct serotypes,among which Sal-monella typhimurium variant(S.4,[5],12∶1∶-),Salmonella enteritidis,and Salmonella enterica London were predominant.Notably,the serotype distribution exhibited significant variation across sample sources.Multilocus sequence typing(MLST)classified the iso-lates into 27 sequence types(STs),among which ST34,ST11,ST155,and ST19 had the highest prevalence.The MLST profiles dem-onstrated strong concordance with serological classifications.For Salmonella,we detected a total of 17 673 virulence genes in 374 cat-egories,carrying multiple virulence islands.Some strains carried virulence plasmid genes,among which 45 strains of Salmonella enter-itidis had higher types and numbers of virulence factors detected than other serotypes of Salmonella.Antimicrobial resistance profiling identified 69 resistance genes conferring resistance to 13 classes of antimicrobial agents,and multidrug resistance patterns were preva-lent among isolates.Plasmid characterization revealed 35 plasmid types,some containing antimicrobial resistance determinants.Addi-tionally,three disinfectant resistance genes were identified.This study highlights the extensive diversity of Salmonella serotypes and STs in Gansu Province and the complex repertoire of virulence and resistance genes.The emergence of disinfectant resistance genes un-derscores challenges in conventional disinfection protocols.These findings provide critical insights for refining Salmonella surveillance and control strategies in public health and food safety contexts.

Objective To investigate the nebulization characteristics of human interferon α1b for injection.To characterize and compare the delivery rate,total drug substance and the aerodynamic characteristics between the two types of nebulizer.Methods Connect two types of nebulizers with a breathing simulator,respectively,and simulate the breathing patterns of an infant and child.Measure the delivery rate,total delivered dose,and delivery uniformity.The aerodynamic properties of human interferon α1b for injection were evaluated by the next generation impactor(NGI).The content of human interferon α1b was quantified by double antibody sandwich ELISA.Results In the three batches of samples in infant mode,the delivery rate and total delivered dose determind by A nebulizer were 0.45,0.49,0.44 μg·min-1,3.06,3.21,3.81 μg,respectcively;and 0.12,0.14,0.16 μg·min-1,0.73,0.73,0.75 μg,respectcively by B nebulizer.In child mode,the delivery rate and total delivered doses determined by A nebulizer were 1.36,1.49,1.20 μg·min-1,7.44,7.17,and 6.54 μg,respectcively;and 0.37,0.36,0.43 μg·min-1,1.66,1.59,and 1.41 μg,respectcively by B nebulizer.In child and infant mode,the ten results of the total drug substance delivered determined by nebulizer A were both between 65%to 135%of the average.The FPD,FPF,MMAD,and GSD determined by A neublizer of three batch samples were 2.48,2.92,2.35 μg,59.0%,57.4%,59.1%,4.18,4.34,4.15 μm,1.94,1.98,2.01,respectively.The FPD,FPF,MMAD and GSD determined by B neublizer of three batches samples were 2.70,3.38,3.06 μg,67.6%,66.4%,66.3%,3.55,3.65,3.68 μm,2.03,2.04,2.06,respectively.Conclusions The data obtained in this research characterized the in vitro nebulization characteristics of human interferon α1b for injection and provided a theoretical basis and reference for in vitro study and clinical practice.The influence of different types of nebulizers on nebulization characteristics was evaluated as well.It is suggested that the quality standard of nebulizers be strictly formulated and the use of nebulizers be standardized.

Salmonella,an important foodborne pathogen,is responsible for numerous diseases in both humans and animals.We conducted a genome-wide analysis of Salmonella isolates from diarrheal and foodborne infection cases in Gansu Province between 2021 and 2023.A total of 163 Salmonella strains were collected and subjected to biochemical identification,followed by serological typing,whole-genome sequencing,and bioinformatics characterization.The results revealed 27 distinct serotypes,among which Sal-monella typhimurium variant(S.4,[5],12∶1∶-),Salmonella enteritidis,and Salmonella enterica London were predominant.Notably,the serotype distribution exhibited significant variation across sample sources.Multilocus sequence typing(MLST)classified the iso-lates into 27 sequence types(STs),among which ST34,ST11,ST155,and ST19 had the highest prevalence.The MLST profiles dem-onstrated strong concordance with serological classifications.For Salmonella,we detected a total of 17 673 virulence genes in 374 cat-egories,carrying multiple virulence islands.Some strains carried virulence plasmid genes,among which 45 strains of Salmonella enter-itidis had higher types and numbers of virulence factors detected than other serotypes of Salmonella.Antimicrobial resistance profiling identified 69 resistance genes conferring resistance to 13 classes of antimicrobial agents,and multidrug resistance patterns were preva-lent among isolates.Plasmid characterization revealed 35 plasmid types,some containing antimicrobial resistance determinants.Addi-tionally,three disinfectant resistance genes were identified.This study highlights the extensive diversity of Salmonella serotypes and STs in Gansu Province and the complex repertoire of virulence and resistance genes.The emergence of disinfectant resistance genes un-derscores challenges in conventional disinfection protocols.These findings provide critical insights for refining Salmonella surveillance and control strategies in public health and food safety contexts.

Objective To investigate the nebulization characteristics of human interferon α1b for injection.To characterize and compare the delivery rate,total drug substance and the aerodynamic characteristics between the two types of nebulizer.Methods Connect two types of nebulizers with a breathing simulator,respectively,and simulate the breathing patterns of an infant and child.Measure the delivery rate,total delivered dose,and delivery uniformity.The aerodynamic properties of human interferon α1b for injection were evaluated by the next generation impactor(NGI).The content of human interferon α1b was quantified by double antibody sandwich ELISA.Results In the three batches of samples in infant mode,the delivery rate and total delivered dose determind by A nebulizer were 0.45,0.49,0.44 μg·min-1,3.06,3.21,3.81 μg,respectcively;and 0.12,0.14,0.16 μg·min-1,0.73,0.73,0.75 μg,respectcively by B nebulizer.In child mode,the delivery rate and total delivered doses determined by A nebulizer were 1.36,1.49,1.20 μg·min-1,7.44,7.17,and 6.54 μg,respectcively;and 0.37,0.36,0.43 μg·min-1,1.66,1.59,and 1.41 μg,respectcively by B nebulizer.In child and infant mode,the ten results of the total drug substance delivered determined by nebulizer A were both between 65%to 135%of the average.The FPD,FPF,MMAD,and GSD determined by A neublizer of three batch samples were 2.48,2.92,2.35 μg,59.0%,57.4%,59.1%,4.18,4.34,4.15 μm,1.94,1.98,2.01,respectively.The FPD,FPF,MMAD and GSD determined by B neublizer of three batches samples were 2.70,3.38,3.06 μg,67.6%,66.4%,66.3%,3.55,3.65,3.68 μm,2.03,2.04,2.06,respectively.Conclusions The data obtained in this research characterized the in vitro nebulization characteristics of human interferon α1b for injection and provided a theoretical basis and reference for in vitro study and clinical practice.The influence of different types of nebulizers on nebulization characteristics was evaluated as well.It is suggested that the quality standard of nebulizers be strictly formulated and the use of nebulizers be standardized.

This study aimed to comprehensively examine the association of gallstones, cholecystectomy, and cancer risk. Multivariable logistic regressions were performed to estimate the observational associations of gallstones and cholecystectomy with cancer risk, using data from a nationwide cohort involving 239 799 participants. General and gender-specific two-sample Mendelian randomization (MR) analysis was further conducted to assess the causalities of the observed associations. Observationally, a history of gallstones without cholecystectomy was associated with a high risk of stomach cancer (adjusted odds ratio (aOR)=2.54, 95% confidence interval (CI) 1.50-4.28), liver and bile duct cancer (aOR=2.46, 95% CI 1.17-5.16), kidney cancer (aOR=2.04, 95% CI 1.05-3.94), and bladder cancer (aOR=2.23, 95% CI 1.01-5.13) in the general population, as well as cervical cancer (aOR=1.69, 95% CI 1.12-2.56) in women. Moreover, cholecystectomy was associated with high odds of stomach cancer (aOR=2.41, 95% CI 1.29-4.49), colorectal cancer (aOR=1.83, 95% CI 1.18-2.85), and cancer of liver and bile duct (aOR=2.58, 95% CI 1.11-6.02). MR analysis only supported the causal effect of gallstones on stomach, liver and bile duct, kidney, and bladder cancer. This study added evidence to the causal effect of gallstones on stomach, liver and bile duct, kidney, and bladder cancer, highlighting the importance of cancer screening in individuals with gallstones.
Humans ; Mendelian Randomization Analysis ; Gallstones/complications* ; Female ; Male ; Cholecystectomy/statistics & numerical data* ; Middle Aged ; Risk Factors ; Aged ; Adult ; Neoplasms/etiology* ; Stomach Neoplasms/epidemiology*

The purpose of the present study was to investigate the effects of resistance combined with aerobic chrono-exercise on the common carotid artery elasticity and hemodynamics. 24 healthy young men (21.96±0.43 years old) underwent a single acute resistance combined with aerobic exercise intervention at eight time periods (6, 8, 10, 12, 14, 16, 18, and 20 o'clock). The axial flow velocity and diameter waveforms of the common carotid artery were measured, and the hemodynamics were calculated using the classical hemodynamic theory before exercise, immediately after exercise, 10 min and 20 min after exercise. The results showed that during exercise recovery, systolic and mean pressures decreased more markedly after exercise at 8 o'clock (P < 0.05); At 20 min post-exercise, arterial stiffness index and pressure-strain elastic modulus after exercise at 6 o'clock were reduced compared with the resting state, but were significantly elevated after exercise at 20 o'clock (P < 0.05). Immediately after exercise, the pressure rise was higher after exercise at 6 o'clock and the mean wall shear stress was higher after exercise at 20 o'clock (P < 0.05). These results suggest that resistance combined with aerobic chrono-exercise produces different effects on common carotid artery hemodynamics in young men. A single acute session of resistance combined with aerobic exercise at 8 o'clock is more effective in lowering blood pressure. Exercise at 6 o'clock is beneficial to improve arterial elasticity but is not recommended for young male individuals with cardiovascular disease risks because of the excessive increase in blood pressure immediately after exercise. Exercise at 20 o'clock is more effective in improving wall shear stress but is accompanied by elevated arterial stiffness indices and pressure-strain elastic modulus. These results provide a scientific basis for healthy young men in choosing the time of exercise by exploring the common carotid artery elasticity and hemodynamic-related indices.
Humans ; Male ; Young Adult ; Exercise/physiology* ; Carotid Artery, Common/physiology* ; Hemodynamics/physiology* ; Vascular Stiffness/physiology* ; Elasticity ; Resistance Training ; Adult

OBJECTIVE: To assess the independent and combined effects of air pollutants, meteorological factors, and greenspace exposure on new tuberculosis (TB) cases. METHODS: TB case data from Shanghai (2013-2018) were obtained from the Shanghai Center for Disease Control and Prevention. Environmental data on air pollutants, meteorological variables, and greenspace exposure were obtained from the National Tibetan Plateau Data Center. We employed a distributed-lag nonlinear model to assess the effects of these environmental factors on TB cases. RESULTS: Increased TB risk was linked to PM _2.5, PM ₁₀, and rainfall, whereas NO ₂, SO ₂, and air pressure were associated with a reduced risk. Specifically, the strongest cumulative effects occurred at various lags: PM _2.5 ( RR = 1.166, 95% CI: 1.026-1.325) at 0-19 weeks; PM ₁₀ ( RR = 1.167, 95% CI: 1.028-1.324) at 0-18 weeks; NO ₂ ( RR = 0.968, 95% CI: 0.938-0.999) at 0-1 weeks; SO ₂ ( RR = 0.945, 95% CI: 0.894-0.999) at 0-2 weeks; air pressure ( RR = 0.604, 95% CI: 0.447-0.816) at 0-8 weeks; and rainfall ( RR = 1.404, 95% CI: 1.076-1.833) at 0-22 weeks. Green space exposure did not significantly impact TB cases. Additionally, low temperatures amplified the effect of PM _2.5 on TB. CONCLUSION Exposure to PM _2.5, PM ₁₀, and rainfall increased the risk of TB, highlighting the need to address air pollutants for the prevention of TB in Shanghai.
China/epidemiology* ; Humans ; Air Pollutants/analysis* ; Tuberculosis/epidemiology* ; Incidence ; Meteorological Concepts ; Particulate Matter/adverse effects* ; Environmental Exposure ; Male ; Female ; Adult ; Air Pollution ; Middle Aged

OBJECTIVE: To investigate the short-term clinical effect of closed reduction single arm external fixator combined with percutaneous needle fixation in the treatment of C1 distal radius fracture in elderly patients. METHODS: Between December 2022 and December 2023, a total of 60 elderly patients diagnosed with type C1 distal radius fractures were treated, comprising 9 males and 51 females. The age ranged from 65 to 84 years old, with an average of (72.69±8.14) years old. Among them, there were 18 cases on the left side and 42 cases on the right side. There were 55 cases of falling injury and 5 cases of traffic accident injury. According to the different surgical methods, the patients were divided into observation group and control group, with 30 cases in each group. The control group underwent manual reduction and unilateral external fixator fixation, consisting of 4 males and 26 females. The mean age was (72.54±8.67) years old. The body mass index (BMI) was (20.61±2.17) kg·m^-2. There were 10 cases on the left side and 20 cases on the right side. Among them, there were 27 cases of falling injury and 3 cases of traffic accident injury. The observation group was treated with manual reduction and unilateral external fixator combined with percutaneous Kirschner wire fixation, including 5 males and 25 females. The mean age was (72.76±7.23) years old. BMI (20.82±2.03) kg·m^-2. The left side was involved in 8 cases and the right side in 22 cases. There were 28 cases of falling injury and 2 cases of traffic accident injury. The changes in radial height, ulnar declination, palmar inclination angle parameters and patient-rated wrist evaluation (PRWE) were assessed on X-ray films before surgery, 2 days after surgery, and 12 weeks after surgery between the two groups. RESULTS: All surgical procedures were successfully completed in both groups without any significant complications. All patients were followed up for a duration from 12 to 20 weeks with an average of(14.50±2.78) weeks. The two groups exhibited significant differences in radial height, palmar inclination angle, and ulnar deviation angle at 2 days and 12 weeks post-operation (P<0.05). However, there was no statistically significant difference observed in radial height, palmar inclination, and ulnar deviation between the two groups at 2 days after the operation (P>0.05). There were significant differences in radial height, palmar inclination angle, and ulnar deviation between the two groups at 12 weeks after operation (P<0.05). At 2 days and 12 weeks after the operation, there were significant differences in PRWE scores of the two groups compared with preoperative scores(P<0.05). At 2 days after the operation, there was no significant difference in PRWE score between the two groups (P>0.05). The PRWE score showed a significant difference between the two groups at 12 weeks post-operation(P<0.05). CONCLUSION The combination of closed reduction and unilateral external fixator, along with percutaneous pin fixation provides move stable fixation for type C1 distal radius fractures. Gradual removal of external fixator further facilitatse the recovery of wrist joint function.
Humans ; Male ; Female ; Radius Fractures/surgery* ; External Fixators ; Aged ; Aged, 80 and over ; Bone Wires ; Fracture Fixation/instrumentation* ; Wrist Fractures

OBJECTIVE: To investigate possible associations between physical function assessment scales, such as Short Physical Performance Battery (SPPB) and Berg Balance Scale (BBS), with all-cause mortality in acute decompensated heart failure (ADHF) patients. METHODS: A total of 108 ADHF patients were analyzed from October 2020 to October 2022, and followed up to May 2023. The association between baseline clinical characteristics and all-cause mortality was analyzed by univariate Cox regression analysis, while for SPPB and BBS, univariate Cox regression analysis was followed by receiver operating characteristic curves, in which the area under the curve represented their predictive accuracy for all-cause mortality. Incremental predictive values for both physical function assessments were measured by calculating net reclassification index and integrated discrimination improvement scores. Optimal cut-off value for BBS was then identified using restricted cubic spline plots, and survival differences below and above that cut-off were compared using Kaplan-Meier survival curves and the log-rank test. The clinical utility of BBS was measured using decision curve analysis. RESULTS: For baseline characteristics, age, female, blood urea nitrogen, as well as statins, angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, or angiotensin receptor-neprilysin inhibitors, were predictive for all-cause mortality for ADHF patients. With respect to SPPB and BBS, higher scores were associated with lower all-cause mortality rates for both assessments; similar area under the curves were measured for both (0.774 for SPPB and 0.776 for BBS). Furthermore, BBS ≤ 36.5 was associated with significantly higher mortality, which was still applicable even adjusting for confounding factors; BBS was also found to have great clinical utility under decision curve analysis. CONCLUSIONS BBS or SPPB could be used as tools to assess physical function in ageing ADHF patients, as well as prognosticate on all-cause mortality. Moreover, prioritizing the improvement of balance capabilities of ADHF patients in cardiac rehabilitation regimens could aid in lowering mortality risk.

Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.