Objective:To investigate the clinical efficacy of a self-designed assistant device for distal ulnar osteotomy and reduction in the surgical treatment of ulnar impaction syndrome.Methods:A retrospective analysis was performed to study the clinical data from the 27 patients with ulnar impaction syndrome who had been treated by distal ulnar shortening and fixation with 2 screws between January 2022 and August 2024 at Department of Hand and Foot Surgery,Affiliated Hospital of Jining Medical University. The cohort included 6 males and 21 females, with 13 left and 14 right sides affected and a mean age of (40.3±10.8) years (range: from 17 to 59 years). Based on their different assistant methods in osteotomy, the patients were divided into group A (15 cases) subjected to conventional freehand osteotomy and group B (12 cases) subjected to distal ulnar osteotomy and reduction assisted by our self-designed assistant device. Comparisons were made between the 2 groups regarding operative time, bone healing time, Mayo wrist function score at postoperative 16 weeks, number of the patients returning to their original occupations and complications.Results:There were no significant dif- ferences in the baseline characteristics between the 2 groups ( P>0.05). All patients were followed up postoperatively for (27.1±11.1) weeks (range: from 16 to 50 weeks). In group B, the operative time [50.0 (50.0, 62.5) min] and bone healing time [6.5 (6.0, 7.0) weeks] were significantly shorter than those in group A [80.0 (67.5, 92.5) min and 7.5 (6.8, 9.0) weeks] ( P<0.05). At postoperative 16 weeks, the Mayo wrist function score was 90.0 (85.0, 96.8) points for group A and 92.5 (85.0, 98.8) points for group B, showing no significant difference ( P>0.05). Five patients in group A and 4 ones in group B returned to their original work status, showing no significant difference either ( P>0.05). One case of non-union occurred in group A while no complication occurred in group B, demonstrating no significant difference either ( P>0.05). Conclusion:In the surgical treatment of ulnar impaction syndrome, compared with conventional freehand osteotomy, application of our self-designed assistant device for distal ulnar osteotomy and reduction is simple, less invasive, and comparable in functional recovery of the wrist, but superior in operative time and bone healing time.

Objective:To investigate the clinical efficacy of a self-designed assistant device for distal ulnar osteotomy and reduction in the surgical treatment of ulnar impaction syndrome.Methods:A retrospective analysis was performed to study the clinical data from the 27 patients with ulnar impaction syndrome who had been treated by distal ulnar shortening and fixation with 2 screws between January 2022 and August 2024 at Department of Hand and Foot Surgery,Affiliated Hospital of Jining Medical University. The cohort included 6 males and 21 females, with 13 left and 14 right sides affected and a mean age of (40.3±10.8) years (range: from 17 to 59 years). Based on their different assistant methods in osteotomy, the patients were divided into group A (15 cases) subjected to conventional freehand osteotomy and group B (12 cases) subjected to distal ulnar osteotomy and reduction assisted by our self-designed assistant device. Comparisons were made between the 2 groups regarding operative time, bone healing time, Mayo wrist function score at postoperative 16 weeks, number of the patients returning to their original occupations and complications.Results:There were no significant dif- ferences in the baseline characteristics between the 2 groups ( P>0.05). All patients were followed up postoperatively for (27.1±11.1) weeks (range: from 16 to 50 weeks). In group B, the operative time [50.0 (50.0, 62.5) min] and bone healing time [6.5 (6.0, 7.0) weeks] were significantly shorter than those in group A [80.0 (67.5, 92.5) min and 7.5 (6.8, 9.0) weeks] ( P<0.05). At postoperative 16 weeks, the Mayo wrist function score was 90.0 (85.0, 96.8) points for group A and 92.5 (85.0, 98.8) points for group B, showing no significant difference ( P>0.05). Five patients in group A and 4 ones in group B returned to their original work status, showing no significant difference either ( P>0.05). One case of non-union occurred in group A while no complication occurred in group B, demonstrating no significant difference either ( P>0.05). Conclusion:In the surgical treatment of ulnar impaction syndrome, compared with conventional freehand osteotomy, application of our self-designed assistant device for distal ulnar osteotomy and reduction is simple, less invasive, and comparable in functional recovery of the wrist, but superior in operative time and bone healing time.

Objective:To analyze the operational efficiency and Total Factor Productivity (TFP) of township health centers in Ningxia from 2013 to 2022,in order to provide decision-making basis for optimize the resource allocation of township health centers in Ningxia. Methods:The BCC model of Data Envelopment Analysis (DEA) and Malmquist productivity index were used to analyze the operation efficiency and TFP of township health centers of Ningxia. Results:(1) From 2013 to 2022,the personnel input in Ningxia township health centers increased by 45.80％,the number of outpatient visits had no significant increase,and the number of inpatient visits decreased by 45.40％. (2) The average comprehensive technical efficiency of resource allocation was 0.658,the average of pure technical efficiency and scale efficiency were 0.747 and 0.880. (3) The average value of TFP index was greater than 1 in 7 counties,and less than 1 in the other 15 counties. Conclusion:The efficiency of township health centers in Ningxia was low. It is of great significance to improve the resource allocation and management ability of township health centers and strengthen the policy support for improving the operation efficiency of township health centers.

Objective:To analyze the operational efficiency and Total Factor Productivity (TFP) of township health centers in Ningxia from 2013 to 2022,in order to provide decision-making basis for optimize the resource allocation of township health centers in Ningxia. Methods:The BCC model of Data Envelopment Analysis (DEA) and Malmquist productivity index were used to analyze the operation efficiency and TFP of township health centers of Ningxia. Results:(1) From 2013 to 2022,the personnel input in Ningxia township health centers increased by 45.80％,the number of outpatient visits had no significant increase,and the number of inpatient visits decreased by 45.40％. (2) The average comprehensive technical efficiency of resource allocation was 0.658,the average of pure technical efficiency and scale efficiency were 0.747 and 0.880. (3) The average value of TFP index was greater than 1 in 7 counties,and less than 1 in the other 15 counties. Conclusion:The efficiency of township health centers in Ningxia was low. It is of great significance to improve the resource allocation and management ability of township health centers and strengthen the policy support for improving the operation efficiency of township health centers.

A triple-transgenic (tyrosine hydroxylase/dopamine decarboxylase/GTP cyclohydrolase 1, TH/DDC/GCH1) bone marrow mesenchymal stem cell line (BMSCs) capable of stably synthesizing dopamine (DA) transmitters were established to provide experimental evidence for the clinical treatment of Parkinson's disease (PD) by using this cell line. The DA-BMSCs cell line that could stably synthesize and secrete DA transmitters was established by using the triple transgenic recombinant lentivirus. The triple transgenes (TH/DDC/GCH1) expression in DA-BMSCs was detected using reverse transcription-polymerase chain reaction (RT-PCR), Western blotting, and immunofluorescence. Moreover, the secretion of DA was tested by enzyme-linked immunosorbent assay (ELISA) and high-performance liquid chromatography (HPLC). Chromosome G-banding analysis was used to detect the genetic stability of DA-BMSCs. Subsequently, the DA-BMSCs were stereotactically transplanted into the right medial forebrain bundle (MFB) of Parkinson's rat models to detect their survival and differentiation in the intracerebral microenvironment of PD rats. Apomorphine (APO)-induced rotation test was used to detect the improvement of motor dysfunction in PD rat models with cell transplantation. The TH, DDC and GCH1 were expressed stably and efficiently in the DA-BMSCs cell line, but not expressed in the normal rat BMSCs. The concentration of DA in the cell culture supernatant of the triple transgenic group (DA-BMSCs) and the LV-TH group was extremely significantly higher than that of the standard BMSCs control group (P < 0.000 1). After passage, DA-BMSCs stably produced DA. Karyotype G-banding analysis showed that the vast majority of DA-BMSCs maintained normal diploid karyotypes (94.5%). Moreover, after 4 weeks of transplantation into the brain of PD rats, DA-BMSCs significantly improved the movement disorder of PD rat models, survived in a large amount in the brain microenvironment, differentiated into TH-positive and GFAP-positive cells, and upregulated the DA level in the injured area of the brain. The triple-transgenic DA-BMSCs cell line that stably produced DA, survived in large numbers, and differentiated in the rat brain was successfully established, laying a foundation for the treatment of PD using engineered culture and transplantation of DA-BMSCs.
Rats ; Animals ; Dopamine ; Parkinson Disease/metabolism* ; Mesenchymal Stem Cells/metabolism* ; Cell Line ; Brain/metabolism* ; Cell Differentiation ; Mesenchymal Stem Cell Transplantation

Pulmonary blast injury has become the main type of trauma in modern warfare, characterized by externally mild injuries but internally severe injuries, rapid disease progression, and a high rate of early death. The injury is complicated in clinical practice, often with multiple and compound injuries. Currently, there is a lack of effective protective materials, accurate injury detection instrument and portable monitoring and transportation equipment, standardized clinical treatment guidelines in various medical centers, and evidence-based guidelines at home and abroad, resulting in a high mortality in clinlcal practice. Therefore, the Trauma Branch of Chinese Medical Association and the Editorial Committee of Chinese Journal of Trauma organized military and civilian experts in related fields such as thoracic surgery and traumatic surgery to jointly develop the Clinical treatment guideline for pulmonary blast injury ( version 2023) by combining evidence for effectiveness and clinical first-line treatment experience. This guideline provided 16 recommended opinions surrounding definition, characteristics, pre-hospital diagnosis and treatment, and in-hospital treatment of pulmonary blast injury, hoping to provide a basis for the clinical treatment in hospitals at different levels.

ObjectiveTo investigate current status of hospital infection management in psychiatric hospitals in the Ningxia Hui Autonomous Region， so as to provide references for improving the level of hospital infection management of psychiatric hospitals. MethodsIn December 2020， on-site supervision was conducted on hospital infection management in all 9 psychiatric hospitals in the Ningxia Hui Autonomous Region， meantime， the self-compiled questionnaire on hospital infection management status was used for investigation. ResultsAmong the selected hospitals， nine （100.00%） psychiatric hospitals had the main hospital leaders in charge of hospital infection management， five （55.56%） hospitals had established a hospital infection management committee， six （66.67%） hospitals had established an independent hospital infection management department， and one （11.11%） hospital had developed all 13 systems mentioned in the questionnaire related to hospital infection management and job responsibilities. In terms of hospital infection management staff， there were 23 staff members in the nine psychiatric hospitals， including 3 in the specialty （13.04%） and 20 in the part-time setting （86.96%）. The score of the implementation of the basic system of hospital infection management in nine hospitals was （3.28±2.22）. ConclusionThe system specification related to hospital infection management in the Ningxia Hui Autonomous Region psychiatric hospitals needs to be improved and further strengthened， the professionalism of hospital infection management personnel needs to be improved.

Objective:To explore the application value of bedside lung ultrasound score(LUS)in evaluating patients with primary graft dysfunction(PGD)after lung transplantation.Methods:A total of 35 PGD patients after lung transplantation in surgical intensive care unit from June 2018 to May 2020 were selected as research objects. After lung transplantation, one physician collected the clinical data, including age, gender, preoperative 24 h APACHE II score, postoperative hemodynamic parameters, lactate and respiratory parameters; another physician was responsible for LUS examination and LUS at 12/24/48/72 h post-operation. The correlation between LUS and oxygenation index was analyzed by bivariate correlation analysis. Receiver operating characteristic curve(ROC)was utilized for calculating the predictive value, sensitivity and specificity of LUS score for severe PGD.Results:A negative correlation existed between LUS and oxygenation index in single lung transplant( r=-0.536, P<0.01)and a negative correlation between LUS and oxygenation index ( r=-0.518, P<0.01)in double lung transplant. The area under ROC curve of LUS showed that the predictive value of LUS of severe PGD patients with single lung transplant was 7.0 with a sensitivity of 86.7% and a specificity of 72.1%, the predicted value of LUS of severe PGD in double lung transplant was 13.0 with a sensitivity of 83.3% and a specificity of 60.0%. Conclusions:Lung ultrasound is simple and easy to operate and LUS can evaluate the severity of PGD patients after lung transplantation. It has a high potency of guiding clinical diagnosis and treatment.

Breast cancer is one of the most serious diseases threatening women's life and health in the world, and the mortality rate is the second in the world. With the progress of nanotechnology and the advantages of nanomaterials in the field of electrochemistry and biosensor, various nanomaterials have been applied in electrochemical biosensors. This makes the electrochemical nano-biosensor in the field of rapid detection of breast cancer has been widely concerned and studied. This paper introduces the important components of electrochemical nano-biosensor for breast cancer detection and the research progress of each component in breast cancer detection, as well as the performance of electrochemical nano biosensor in breast cancer detection and the prospect of its application.
Biosensing Techniques ; Breast Neoplasms/diagnosis* ; Electrochemical Techniques ; Female ; Humans ; Nanostructures ; Nanotechnology

Objective To investigate the basic clinical features in 371 cases of colorectal polyps and its relationship with fecal occult blood and carcinoembryonic antigen(CEA).Methods The retrospective analysis was performed on 371 inpatients with colo-rectal polyps.The relationship among gender,number of polyps and polyps anatomical site in different ages of patients was investi-gated,and the relationship between fecal occult blood and CEA with polyp canceration was analyzed by 1.5?3.0 years follow-up. Results Among 371 cases of colorectal polyps,the female patients were gradually increased and single polyp was gradually de-creased along with the age increase;due to different ages,there was the statistically significant difference in the polyp locations (χ2 =9.759,P=0.045);the distribution difference of the patients with polyp canceration among three age groups was statistically significant(χ2 =5.138,4.107,13.153,P<0.05).The cases of fecal occult blood positive and CEA abnormal increase were gradual-ly increased with age increasing(χ2 =15.544,11.959,P<0.01);with the number of polyps increasing,the cases of fecal occult blood positive showed the increasing trend(χ2 =14.043,P=0.001);the canceration rate in colorectal polyp cases of fecal occult blood positive and CEA abnormal increase was significantly higher than that in the cases of fecal occult blood negative and CEA normal range(χ2 =40.165,43.249,all of P< 0.001).Conclusion The fecal occult blood test and CEA detection results have a certain significance to the follow up for preventing colorectal polyps canceration.