Background Methicillin-resistant Staphylococcus aureus (MRSA) is an important pathogen for both human bloodstream infections and mastitis in cows. However, little attention has been paid to the cross-host transmission of MRSA from cows to high-risk groups in China. Objective To determine the MRSA colonization rates among dairy cows and dairy farm workers in Xinjiang, identify the antibiotic resistance profiles and molecular characteristics of the isolates, and provide scientific evidence for the formulation of targeted infection control strategies. Method A cross-sectional survey combined with laboratory pathogen analysis was conducted. From June to August 2024, large-scale dairy farms in Xinjiang region were selected as study sites. Nasal swabs (n=96) and skin swabs (n=39) were collected from workers, and bovine nasal swab samples (n=109) were collected simultaneously. All samples were subjected to MRSA isolation, cultivation, and identification, followed by antibiotic susceptibility testing to characterize resistance phenotypes. Staphylococcus aureus protein A (Spa) typing was performed to determine strain genotypes and elucidate MRSA colonization rates and molecular epidemiological patterns. Results A total of 35 MRSA strains was successfully isolated from 244 samples. The MRSA colonization rates among dairy farm workers and dairy cows were 20.83% (20/96) and 12.84% (14/109), respectively, with an overall isolation rate of 14.34% (35/244). Among the workers, the nasal colonization rate was 16.67% (16/96), and the skin colonization rate was 12.82% (5/39). One worker exhibited MRSA colonization at multiple body sites. All MRSA strains were resistant to cefoxitin (100%, 35/35). The resistance rates to erythromycin and clindamycin were 42.86% (15/35) and 34.29% (12/35), respectively. Thirteen strains showed a multidrug-resistant phenotype, whereas all strains were susceptible to vancomycin. The MRSA isolates exhibited high genetic diversity, with 13 Spa types identified, among which t441 was the most prevalent (8 strains). Both t441 and t034 types were detected in samples from both the dairy cows and their handlers. These two Spa types also carried and stably inherited specific resistance combinations, including erythromycin–clindamycin–cefoxitin and ciprofloxacin–erythromycin–clindamycin–gentamicin–cefoxitin–tetracycline, and a statistically significant association was also observed between the two resistance profiles and the bacterial types (P < 0.001). In addition, one novel Spa type strain was identified. Conclusion MRSA colonization rates among dairy cows and dairy farm workers in Xinjiang are relatively high, with evidence of multi-site colonization. The isolates exhibit high levels of multidrug resistance and genetic diversity, indicating a potential risk of cross-host transmission.

Background Under intensive dairy farming conditions, Enterococcus spp. can be transmitted between animals, farm workers, and the environment via multiple vectors such as feces, soil, water, air, and farming equipment, posing a potential threat to public health. Objective To elucidate the prevalence, distribution, and antimicrobial resistance profiles of Enterococcus faecalis (E. faecalis) and Enterococcus faecium (E. faecium) among farm workers, dairy cattle, and the farm environment in Xinjiang, and to assess the risk of their cross-host transmission. Methods From May 2024 to January 2025, a total of 317 samples were collected from 11 large-scale dairy farms in Xinjiang, China, including feces from farm workers (n=130) and dairy cattle (n=154), and environmental samples (n=33). E. faecalis and E. faecium were isolated and identified, followed by antimicrobial susceptibility testing and multilocus sequence typing (MLST) to analyze their molecular characteristics. Results A total of 183 Enterococcus isolates were obtained (66 E. faecalis and 117 E. faecium isolated). The isolation rates of both species showed statistically significant differences among the three sources (χ²=29.21, P=0.003). Antimicrobial resistance analysis revealed that E. faecalis generally exhibited higher resistance rates across multiple antibiotic classes than E. faecium. High resistance to rifampicin was observed across all sources (50.00%–81.25%), with statistical variation among origins (χ²=8.03, P=0.024). Multidrug-resistant strains accounted for 69.10% of the isolates. Multidrug resistance patterns in E. faecium varied significantly by source (χ²=27.19, P=0.014), and one isolate displayed resistance to eight antibiotic classes. MLST indicated high genetic diversity; E. faecalis was dominated by ST472 and ST227 of which the distrubution was significantly different among sources, while E. faecium primarily clustered into clonal complexes CC94 (centered on ST94) and CC17 (centered on ST22). Conclusion Resistant Enterococcus strains exhibit cross-transmission among farm workers, animals, and the environment. Under the "One Health" framework, standardized farming protocols and prudent antimicrobial use are essential to disrupt the transmission chain of resistant clones and mitigate the spread of antimicrobial resistance at its source.

Background Under intensive dairy farming conditions, Enterococcus spp. can be transmitted between animals, farm workers, and the environment via multiple vectors such as feces, soil, water, air, and farming equipment, posing a potential threat to public health. Objective To elucidate the prevalence, distribution, and antimicrobial resistance profiles of Enterococcus faecalis (E. faecalis) and Enterococcus faecium (E. faecium) among farm workers, dairy cattle, and the farm environment in Xinjiang, and to assess the risk of their cross-host transmission. Methods From May 2024 to January 2025, a total of 317 samples were collected from 11 large-scale dairy farms in Xinjiang, China, including feces from farm workers (n=130) and dairy cattle (n=154), and environmental samples (n=33). E. faecalis and E. faecium were isolated and identified, followed by antimicrobial susceptibility testing and multilocus sequence typing (MLST) to analyze their molecular characteristics. Results A total of 183 Enterococcus isolates were obtained (66 E. faecalis and 117 E. faecium isolated). The isolation rates of both species showed statistically significant differences among the three sources (χ²=29.21, P=0.003). Antimicrobial resistance analysis revealed that E. faecalis generally exhibited higher resistance rates across multiple antibiotic classes than E. faecium. High resistance to rifampicin was observed across all sources (50.00%–81.25%), with statistical variation among origins (χ²=8.03, P=0.024). Multidrug-resistant strains accounted for 69.10% of the isolates. Multidrug resistance patterns in E. faecium varied significantly by source (χ²=27.19, P=0.014), and one isolate displayed resistance to eight antibiotic classes. MLST indicated high genetic diversity; E. faecalis was dominated by ST472 and ST227 of which the distrubution was significantly different among sources, while E. faecium primarily clustered into clonal complexes CC94 (centered on ST94) and CC17 (centered on ST22). Conclusion Resistant Enterococcus strains exhibit cross-transmission among farm workers, animals, and the environment. Under the "One Health" framework, standardized farming protocols and prudent antimicrobial use are essential to disrupt the transmission chain of resistant clones and mitigate the spread of antimicrobial resistance at its source.

Objective:To evaluate the clinical efficacy of the operation treated of unilateral unstable sacral fracture with S 1 dysplasia by bi-perforative screws of the middle and posterior pelvic columns. Methods:A retrospective analysis was conducted on 18 patients with proximal S 1 dysplasia and unilateral unstable sacral fractures treated at Tianjin Hospital, from January 2018 to January 2023. The cohort included 10 males and 8 females, with an average age of 46.3±1.2 years (range, 18-56 years). The causes of injury were traffic accidents in 12 cases and falls in 6 cases. All patients had combined anterior pelvic ring injuries, including 14 cases of simple fractures and 4 cases of fractures combined with pubic symphysis injuries. Preoperative neuro-magnetic resonance imaging (MRI) confirmed that the lumbosacral nerves were not compressed by fracture fragments or displaced bone ends. According to the Dennis classification, there were 8 cases of type I and 10 cases of type II sacral fractures. Abnormalities in S 1 development included 9 cases of steep slopes, 6 cases of anterior rim depression, and 3 cases of both deformities simultaneously. There were 2 cases of nerve injury, both of which were Gibbons grade II. The average time from injury to surgery was 5.4±1.7 days (range, 4-14 days). All patients underwent combined anterior and posterior pelvic fixation in a single stage, with sacral fractures fixed using bi-perforative screws of posterior pelvic ring. The following parameters were recorded: screw placement time, intraoperative blood loss, fluoroscopy time, fracture healing time, accuracy of internal fixation placement, postoperative infection rate, and iatrogenic injury incidence. The Mears scoring system was used to evaluate the satisfaction rate of sacral fracture reduction, the Gibbons classification was used to assess neurological recovery, and the Majeed score was used to evaluate pelvic function. Results:The average screw placement time was 38.7±3.5 min for S 1 and 16.5±1.3 min for the posterior column. The average blood loss during screw placement was 30.53±1.61 ml, and the average fluoroscopy time was 11.3±3.2 s. No vascular or nerve injuries occurred in any case after the operation. All sacral fractures healed, with an average healing time of 7.6±2.2 months (range, 3-12 months). No cases of fracture re-displacement or internal fixation failure were observed. The Mears evaluation results showed anatomical reduction in 12 cases, satisfactory reduction in 4 cases, and unsatisfactory reduction in 2 cases. All internal fixations were accurately placed. All 18 patients were followed up with an average of 18.2±2.5 months (range, 12-36 months). At the last follow-up, the average Majeed score was 87.4±2.9, with 11 cases rated as excellent, 4 as good, and 3 as fair. The two patients with Gibbons grade II nerve injuries improved to grade I postoperatively. Conclusion:Bi-perforative screws fixation for the middle and posterior pelvic columns offers several advantages, including straightforward operation, precise minimally invasive placement, safety and efficacy, robust fixation, and low complication rates, resulting in satisfactory clinical outcomes.

Objective:To evaluate the value of intraoperative cone beam CT (CBCT) in robot-assisted iliosacral screw fixation for posterior pelvic ring injuries.Methods:The 70 patients' data with posterior pelvic ring injuries treated in Tianjin Hospital from March 2020 to October 2023 were retrospectively analyzed. According to the operation method and whether there was intraoperative CBCT verification, the patients were divided into the robot-assisted iliosacral screw fixation group verified by CBCT with 15 cases (robot+CT group), the simple robot-assisted iliosacral screw fixation group with 25 cases (robot group), the freehand iliosacral screw fixation group verified by CBCT with 10 cases (freehand+CT group), and the freehand iliosacral screw fixation group with 20 cases (freehand group). The operation time, the number of intraoperative fluoroscopies, the frequency of guide needle adjustment of each iliosacral screw, Majeed function score, Matta score, fracture healing time, Gras classification of screw position of the four groups were compared, and the iliosacral screw's perforation site were recorded.Results:All patients were followed up, and the follow-up time was 18.89±4.13 months (range, 12-30 months). There were no statistically significant differences in postoperative fracture Matta score, Majeed score and fracture healing time among the four groups ( P>0.05). Specifically, 26, 45, 15, and 32 iliacsacral screws were inserted in the robot+CT group, the robot group, the freehand+CT group, and the freehand group, respectively. The operation times for these groups were 20.19±1.24, 18.78±1.00, 38.13±2.32, and 37.56±1.80 min, respectively. The number of intraoperative fluoroscopies per screw were 20.50±1.37, 18.47±1.06, 39.80±3.56, and 39.34±1.93, respectively. The guide needle adjustment times were 0.54±0.15, 0.47±0.10, 9.33±1.34, and 8.56±0.86, respectively. Statistically significant differences were observed in the above three indicators among the four groups ( P<0.05). There was no statistically significant difference in Gras classification of screw positions among the four groups ( P>0.05). However, in the CBCT verification group (robot+CT group and freehand+CT group), the Gras classification results were 36 screws in Grade I, 4 in Grade II, 1 in Grade III, and 0 in Grade IV. In contrast, in the non-CBCT verification group (robot group and freehand group), there were 48 screws in Grade I, 17 in Grade II, 11 in Grade III, and 1 in Grade IV, with a statistically significant difference (χ 2=8.945, P=0.030). The screw perforation rate in the CBCT verification group was 2% (1/41), with no perforation observed in the robot+CT verification group, compared to 16% (12/77) in the non-CBCT verification group, showing a statistically significant difference (χ 2=4.716, P=0.030). Among the 13 perforating iliosacral screws, two were located in the anterior slope of the sacrum, while 11 were positioned in the posterior and inferior dangerous triangle area of the sacral vertebral body, and the screws were penetrated into the sacral nerve root channel. Conclusions:Robot-assisted iliosacral screw with short operation time, less fluoroscopies and less guide needle adjustments, the screws can be accurately placed according to the plan, with satisfactory clinical outcomes. The penetration sites of robot-assisted iliosacral screw based on two-dimensional X-ray planning were mostly located in the posterior and inferior of the vertebral body at the pedicle level. Intraoperative CBCT can significantly improve the accuracy of sacroiliac screw placement.

A case of traumatic complete lumbosacral spondylolisthesis combined with unstable pelvic fracture is reported. A 55-year-old male patient was admitted to the hospital 8 h after being hit by a heavy object on the lumbosacral region. Admission diagnosis: (1) traumatic hemorrhagic shock; (2) bilateral pulmonary contusion with pleural effusion, and dislocation of the right 12th costovertebral joint; (3) left renal contusion with subcapsular hematoma; (4) traumatic lumbosacral spondylolisthesis (Meyerding grade V), L 5 lamina fracture, L 2 and L 5 spinous process fractures, left L 3-L 5 transverse process fractures, right L 5 inferior articular process fracture, and L 1-L 3 and L 5 transverse process fractures; (5) lumbosacral Morel-Lavallée lesion; (6) pubic symphysis separation, left sacral wing fracture, and sacroiliac joint dislocation (Young-Burgess APC type III); (7) Multiple incomplete injuries of bilateral lumbosacral nerves, and cauda equina syndrome (Gibbons type Ⅳ). The patient underwent open reduction of pelvic fracture and pubic symphysis separation, closed reduction of sacroiliac joint dislocation and combined internal and external fixation, and open reduction and internal fixation of lumbosacral spondylolisthesis. At the 1-year follow-up after surgery, the pelvis achieved anatomical reduction with good fracture healing, the spinal anatomical alignment returned to normal, and lumbosacral bony fusion was observed, and weakness of both lower limbs and abnormal urodynamics caused by residual lumbosacral nerve injury were observed.

Objective To systematically review the quality of pediatric off-label medication guidelines and consensus,compare the differences among guidelines and consensus,and to provide recommendations for clinical application.Method Searching the guidelines and literature databases and websites such as TRIP,GIN,NICE,PubMed,CNKI,WanFang Data,MedLink,to collect off-label drug use guidelines or consensus.The AGREE Ⅱ was used to evaluate the methodological quality of the included guidelines or consensus,and the differences among the recommendations of guidelines and consensus were analyzed and compared.The differences in scores between guidelines and consensus and international and domestic guidelines and consensus were compared in each domain.Results A total of 7 papers were included,comprising 3 guidelines and 4 consensuses,1 from Austria and 6 from China.The AGREE Ⅱ results showed that the scores of 2 domains,"Scope and Purpose"and"Stakeholder Involvement",were above 60％.There were significant differences in scores in the remaining four domains(Rigour of Development,Clarity of Presentation,Applicability,and Editorial Independence).There were differences in the insufficient items of the guidelines and consensus.The"Scope and Purpose"of the guidelines scored significantly higher than the consensus.In addition,the grading of evidence and grading of recommendations of the guidelines and consensus were different,including GRADE,Micromedex,Oxford Centre for Evidence-based Medicine standards,and custom methods.According to the AGREE Ⅱ,among the 7 guidelines and consensus,3 were recommended,3 were recommended after modification,and 1 was not recommended.Conclusion There are relatively few existing pediatric guidelines and consensus on off-label medication.At present,there are differences in the quality of guidelines and consensus,with inconsistent standards for evidence quality and recommendation strength.

Liver diseases have a high prevalence rate worldwide with relatively poor long-term clinical outcomes and have become one of the leading causes of disease burden and death around the world,which poses significant challenges to public health.Eosinophils(Eos)are a class of highly conserved multifunctional immune cells that play critical effector roles in allergic diseases.In recent years,an increasing amount of evidence has shown that Eos plays an important role in the pathogenesis of liver diseases,exerting a protective or harmful effect in different liver diseases,which has become a research hotspot in this field.This article elaborates on the role and potential mechanism of action of Eos in liver diseases,in order to provide a new perspective for in-depth research on the pathogenesis of liver diseases and lay the foundation for developing therapeutic strategies targeting Eos.

Objective To explore the influencing factors forcerebral small vessel disease(CSVD)in patients with type 2 diabetes mellitus(T2DM).Methods A total of 160 patients with T2DM admitted to the Department of Endocrinology our hospital were enrolled in this study from January 2024 to March 2024,and divided into simple T2DM group(n=107)and T2DM combined with CSVD(CSVD,n=53)group according to the combination of CSVD.The general information and biochemical indicators were compared between the two groups.Logistic regression analysis was used to analyze the influencing factors for CSVD in patients with T2DM,and ROC curve was used to evaluate the diagnostic efficacy of CSVD markers.Results The CSVD group showed significantly higher values than the T2DM group(P<0.05)in the following parameters:DM duration,serum uric acid,cystatin C(CysC),neutrophils,monocytes,C-RP,monocyte-to-high-density lipoprotein cholesterol ratio(MHR),and PAC-1 levels.Conversely,the CSVD group had significantly lower levels of LDL-C,lymphocytes,and albumin-to-globulin ratio(A/G)compared to the T2DM group(P<0.05).Logistic regression analysis indicated that A/G,CysC,MHR,and DM duration were influencing factors for T2DM complicated with CSVD.Receiver operating characteristic(ROC)curveanalysis demonstrated that the combined prediction model incorporating A/G,CysC,MHR,and DM duration yielded an area under the curve of 0.88,indicating good predictive performance.Conclusions A/G,CysC,MHR,and duration are independent risk factors for CSVD in patients with T2DM.Early identification of these items may facilitate the prevention of CSVD in patients with T2DM.

Objective:To investigate the differences of the glymphatic system (GS) function between patients with mesial temporal lobe epilepsy with hippocampal sclerosis (mTLE-HS) and healthy controls and between different seizure types by using diffusion tensor imaging along perivascular space (DTI-ALPS), and to analyze the correlation between GS function and the course of disease, as well as the efficacy of predicting the surgical outcome.Methods:This study was a cross-sectional study. A total of 171 patients with mTLE-HS (mTLE-HS group) and 75 healthy volunteers (HC group) were retrospectively enrolled from July 2009 to July 2021 at Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University. The general information of all subjects, such as seizure type (partial seizure, secondary generalized seizure), surgical outcome, etc., was analyzed. The 3D magnetization prepared rapid gradient echo T 1WI and DTI sequence images were collected. The VBM analysis method was used to segment cerebrospinal fluid and calculate the volume. The ALPS index of the bilateral brain was calculated using the Atlas-based DTI-ALPS method. Independent sample t-test or paired t test were used to compare the ALPS index between the mTLE-HS group and HC group, and between patients with different seizure types. Pearson correlation analysis was used to analyze the correlation between bilateral ALPS index and disease duration in mTLE-HS group. The predictive value of the ALPS index for surgical outcomes was evaluated by receiver operating characteristics curve and area under the curve. Results:Among the 171 mTLE-HS patients, 98 patients were mTLE with left-side HS (mTLE-LHS) and 73 patients were mTLE with right-side HS (mTLE-RHS); 37 patients underwent surgical treatment, including 27 with good prognosis and 10 with poor prognosis. Compared with the HC group, the left-side ALPS index of mTLE-LHS and mTLE-RHS were both decreased ( P<0.05). The right-side ALPS index in mTLE-RHS was lower than that in the HC group ( P<0.001). There was no significant difference in the right-side ALPS index between mTLE-LHS and HC group ( P=0.080). The ALPS index on the affected side of patients with secondary generalized seizures was significantly lower than that of patients with only partial seizures (all P<0.05), but the difference in ALPS index on the healthy side was not statistically significant( P>0.05). The left-side and right-side ALPS index in mTLE-LHS were negatively correlated with disease duration ( r=-0.272, P=0.007; r=-0.307, P=0.002), but no significant correlation was found between the left-side or right-side ALPS index in mTLE-RHS (all P>0.05). The DTI-ALPS index on the affected side in mTLE-HS patients exhibited good diagnostic accuracy for surgical outcome classification, with an area under the curve of 0.778. Conclusions:The patients with mTLE-HS exhibit dysfunction of the GS, and the degree of impairment is related to the type of seizure and the course of epilepsy. The ALPS index, which characterizes the function of GS, demonstrates good diagnostic accuracy for classifying surgical outcomes.