Objective To investigate the effect of neuroendoscopy-assisted microsurgical vascular decompression(MVD)on hemifacial spasm(HFS)under the combined monitoring of abnormal muscle response(AMR)and brainstem auditory evoked potential(BAEP),and its impact on serum myelin basic protein(MBP)and neuron-specific enolase(NSE).Methods 110 patients with HFS from January 2019 to December 2023 were prospectively selected and divided into a control group(n=55)and study group(n=55)according to the random number table method.The control group received neuroendoscopy-assisted MVD treatment,while the study group received neuroendoscopy-assisted MVD treatment under the combined monitoring of AMR and BAEP.The therapeutic effects,the levels of serum MBP and NSE,facial nerve function grading,electrophysiological parameters of facial nerve(compound muscle action potential,blink reflex wave amplitude R1,R2,and R2'),quality of life[hemifacial spasm scale(HFS-8)score],and sleep quality[Pittsburgh sleep quality index(PSQI)score]before and after surgery,and complication rates of the two groups were compared.Results The total effective rate of the study group was 94.55%(52/55),which was higher than that of the control group(80.00%,44/55),the difference was statistically significant(P<0.05).At 1 and 3 d after operation,the levels of serum MBP and NSE in the study group were lower than those in the control group,the differences were statistically significant(P<0.05).At 6 months after surgery,the facial nerve function grading of the study group was better than that of the control group,the blink reflex wave amplitudes R1,R2 and R2'were lower than those of the control group,and the compound muscle action potential was higher than that of the control group,the differences were statistically significant(P<0.05).At 6 months after surgery,the HFS-8 score and PSQI score of the study group were lower than those of the control group,the difference was statistically significant(P<0.05).The difference in the incidence rate of complications between the two groups was not statistically significant(P>0.05).Conclusion The combined monitoring of AMR and BAEP under neuroendoscopy-assisted MVD treatment of HFS patients has significant effects,improving patients'neurological function,improving their sleep quality and quality of life,and has high safety.

Objective To investigate the effect of neuroendoscopy-assisted microsurgical vascular decompression(MVD)on hemifacial spasm(HFS)under the combined monitoring of abnormal muscle response(AMR)and brainstem auditory evoked potential(BAEP),and its impact on serum myelin basic protein(MBP)and neuron-specific enolase(NSE).Methods 110 patients with HFS from January 2019 to December 2023 were prospectively selected and divided into a control group(n=55)and study group(n=55)according to the random number table method.The control group received neuroendoscopy-assisted MVD treatment,while the study group received neuroendoscopy-assisted MVD treatment under the combined monitoring of AMR and BAEP.The therapeutic effects,the levels of serum MBP and NSE,facial nerve function grading,electrophysiological parameters of facial nerve(compound muscle action potential,blink reflex wave amplitude R1,R2,and R2'),quality of life[hemifacial spasm scale(HFS-8)score],and sleep quality[Pittsburgh sleep quality index(PSQI)score]before and after surgery,and complication rates of the two groups were compared.Results The total effective rate of the study group was 94.55%(52/55),which was higher than that of the control group(80.00%,44/55),the difference was statistically significant(P<0.05).At 1 and 3 d after operation,the levels of serum MBP and NSE in the study group were lower than those in the control group,the differences were statistically significant(P<0.05).At 6 months after surgery,the facial nerve function grading of the study group was better than that of the control group,the blink reflex wave amplitudes R1,R2 and R2'were lower than those of the control group,and the compound muscle action potential was higher than that of the control group,the differences were statistically significant(P<0.05).At 6 months after surgery,the HFS-8 score and PSQI score of the study group were lower than those of the control group,the difference was statistically significant(P<0.05).The difference in the incidence rate of complications between the two groups was not statistically significant(P>0.05).Conclusion The combined monitoring of AMR and BAEP under neuroendoscopy-assisted MVD treatment of HFS patients has significant effects,improving patients'neurological function,improving their sleep quality and quality of life,and has high safety.

Objective:We conducted a quality analysis and a survey of current situation of portable blood glucose meters from hospitals and patient sources in Zhejiang Province..Methods:The study is a retrospective cross-sectional study that included 252 portable blood glucose meters, of which 35 portable blood glucose meters (4 in provincial hospitals, 29 in municipal hospitals, and 2 in county-level hospitals) selected for the "Zhejiang Province Portable Blood Glucose Meter Flight Quality Control Inspection" project in April 2023, 126 portable blood glucose meters collected for the "Zhejiang Hospital Portable Blood Glucose Meter Whole Hospital Comparison" project in January 2024, and 91 portable blood glucose meters collected from patients in the "Zhejiang Hospital Home Portable Blood Glucose Meter Convenience Service" project from 2021 to 2023. By comparing the blood glucose results with the reference analyzer, evaluate the qualification rate of portable blood glucose meters between hospitals and patients, imported and domestic brands, and analyze the distribution of blood glucose concentration intervals for unqualified portable blood glucose meters. Conduct a survey questionnaire on the use of portable blood glucose meters by patients to analyze their trust in the results, quality control execution rate, comparison awareness rate, and comparison execution rate.Results:The overall qualification rate of portable blood glucose meters in hospitals (95.7%) was higher than that of portable blood glucose meters use by patients (70.3%), and the difference was statistically significant ( χ 2=31.94 , P<0.001). Among the unqualified blood glucose meters, the unqualified blood glucose concentration is mainly concentrated in the high concentration range (65.9%). Among imported brands, the qualification rate of blood glucose meters from hospitals(99.3%) is higher than that from patients(74.0%), and the difference is statistically significant ( χ 2=36.97, P<0.001). Meanwhile, 75% of patients fully trust the detection results of the blood glucose meter, but its instrument qualification rate is 69%. The awareness rate of patients regarding the comparison of portable blood glucose meters is 73%, but the execution rate of quality control and standard comparison of portable blood glucose meters by patients is 0. Conclusion:The quality of portable blood glucose meters in Zhejiang Province is uneven, with the highest pass rate for portable blood glucose meters from hospitals. Patients have weak awareness of quality control and comparison of portable blood glucose meters.

Objective:To prepare a monoclonal strain of mumps virus of genotype F，which is intended to be applied as a national standard strain，and to provide corresponding virus strain resources for the surveillance，prevention and control of mumps.Methods:The plaque purification technique was used to pick monoclonal strains on Vero/hSLAM cells. The biological characteristics and stability of the monoclonal virus strains were evaluated by observing the cytopathic effect of the monoclonal virus strains，morphological observation of virological characteristics，determination of virus titer and whole-genome sequencing，and mycoplasma detection.Results:After infection of Vero/hSLAM cells，the monoclonal strain of mumps virus constructed after plaque purification could cause cell fusion. Under the negative staining electron microscope，the virus particles were spherical，with a diameter between 100 and 200 nm，and had an obvious envelope. The virus titer of the 2 nd to 6 th generations was between 10 6 and 10 7 TCID 50/ml. Through whole-genome sequencing and phylogenetic analysis，the full length of the virus genome sequence was obtained as 15 384 bp，and it was confirmed that the monoclonal virus strain was of genotype F. The nucleotide difference rate between the 2 nd and 6 th generations was 0.013%. Conclusion:The monoclonal strain of mumps virus constructed in this experiment has typical cytopathic effects and typical morphological structures. The virus has good activity and stable genetic characteristics，and can be used as a candidate strain for application as a national standard strain. It can be used for reagent research and development，evaluation of immunization effects，and other subsequent work.

ObjectiveTo investigate the pharmacodynamic effects of Houshihei San （HSHS） recorded with the effects of treating wind and limb heaviness on muscle tissue injury after middle cerebral artery occlusion （MCAO） in rats through the ferroptosis pathway. MethodsThirty SD male rats were selected and randomly grouped as follows： sham， MCAO， deferoxamine mesylate， high-dose HSHS （HSHS-H， 0.54 g·kg^-1）， and low-dose HSHS （HSHS-L， 0.27 g·kg^-1）， with 6 rats in each group. A laser scattering system was used to evaluate the stability of the MCAO model， and rats were administrated with corresponding agents by gavage for 7 days. During the administration period， behavioral， imaging and other methods were used to systematically evaluate the skeletal muscle tissue injury after MCAO and the therapeutic effect in each administration group. Hematoxylin-eosin staining was employed to evaluate the cross-section of muscle cells. Subsequently， immunohistochemistry was used to detect tumor suppressor p53 and glutathione peroxidase 4 （GPX4） in the soleus tissue. Western blot was employed to determine the protein levels of p53， GPX4， myogenic differentiation 1 （MyoD1）， nuclear factor E₂-related factor 2 （Nrf2）， Myostatin， solute carrier family 7 member 11 （SLC7A11）， muscle ring-finger protein-1 （MuRF1）， and muscle atrophy F-box protein （MAFbx） to verify the therapeutic effect in each group. ResultsCompared with the MCAO group， HSHS enhanced the locomotor ability and promoted muscle regeneration， which suggested that the pharmacological effects of HSHS were related to the inhibition of muscle tissue ferroptosis to reduce the expression of muscle atrophy factors. Behavioral and imaging results suggested that compared with the MCAO group， HSHS ameliorated neurological impairments in rats on day 7 （P<0.01）， enhanced 5-min locomotor distance and postural control （P<0.01）， strengthened grasping power and promoted muscle growth （P<0.01）， stabilized skeletal muscle length and weight （P<0.01）， and increased the cross-section of muscle cells （P<0.01）. Compared with the MCAO group， HSHS promoted the increases in glutathione and superoxide dismutase content and inhibited the increase in malondialdehyde content （P<0.05，P<0.01）. Ferroptosis pathway-related assays suggested that HSHS reduced the p53-positive cells and increased the GPX4-positive cells （P<0.01）. HSHS ameliorated muscle function decline after stroke by promoting the expression of GPX4， Nrf2， SLC7A11， and MyoD1 and inhibiting the expression of p53， Myostatin， MurRF1， and MAFbx to reduce ferroptosis in the muscle （P<0.01）. ConclusionHSHS， prepared with reference to the method in the Synopsis of Golden Chamber， can simultaneously reduce the myolysis and increase the protein synthesis in the skeletal muscle tissue after ischemic stroke by regulating the ferroptosis pathway.

Objective:To prepare a monoclonal strain of mumps virus of genotype F，which is intended to be applied as a national standard strain，and to provide corresponding virus strain resources for the surveillance，prevention and control of mumps.Methods:The plaque purification technique was used to pick monoclonal strains on Vero/hSLAM cells. The biological characteristics and stability of the monoclonal virus strains were evaluated by observing the cytopathic effect of the monoclonal virus strains，morphological observation of virological characteristics，determination of virus titer and whole-genome sequencing，and mycoplasma detection.Results:After infection of Vero/hSLAM cells，the monoclonal strain of mumps virus constructed after plaque purification could cause cell fusion. Under the negative staining electron microscope，the virus particles were spherical，with a diameter between 100 and 200 nm，and had an obvious envelope. The virus titer of the 2 nd to 6 th generations was between 10 6 and 10 7 TCID 50/ml. Through whole-genome sequencing and phylogenetic analysis，the full length of the virus genome sequence was obtained as 15 384 bp，and it was confirmed that the monoclonal virus strain was of genotype F. The nucleotide difference rate between the 2 nd and 6 th generations was 0.013%. Conclusion:The monoclonal strain of mumps virus constructed in this experiment has typical cytopathic effects and typical morphological structures. The virus has good activity and stable genetic characteristics，and can be used as a candidate strain for application as a national standard strain. It can be used for reagent research and development，evaluation of immunization effects，and other subsequent work.

Objective:We conducted a quality analysis and a survey of current situation of portable blood glucose meters from hospitals and patient sources in Zhejiang Province..Methods:The study is a retrospective cross-sectional study that included 252 portable blood glucose meters, of which 35 portable blood glucose meters (4 in provincial hospitals, 29 in municipal hospitals, and 2 in county-level hospitals) selected for the "Zhejiang Province Portable Blood Glucose Meter Flight Quality Control Inspection" project in April 2023, 126 portable blood glucose meters collected for the "Zhejiang Hospital Portable Blood Glucose Meter Whole Hospital Comparison" project in January 2024, and 91 portable blood glucose meters collected from patients in the "Zhejiang Hospital Home Portable Blood Glucose Meter Convenience Service" project from 2021 to 2023. By comparing the blood glucose results with the reference analyzer, evaluate the qualification rate of portable blood glucose meters between hospitals and patients, imported and domestic brands, and analyze the distribution of blood glucose concentration intervals for unqualified portable blood glucose meters. Conduct a survey questionnaire on the use of portable blood glucose meters by patients to analyze their trust in the results, quality control execution rate, comparison awareness rate, and comparison execution rate.Results:The overall qualification rate of portable blood glucose meters in hospitals (95.7%) was higher than that of portable blood glucose meters use by patients (70.3%), and the difference was statistically significant ( χ 2=31.94 , P<0.001). Among the unqualified blood glucose meters, the unqualified blood glucose concentration is mainly concentrated in the high concentration range (65.9%). Among imported brands, the qualification rate of blood glucose meters from hospitals(99.3%) is higher than that from patients(74.0%), and the difference is statistically significant ( χ 2=36.97, P<0.001). Meanwhile, 75% of patients fully trust the detection results of the blood glucose meter, but its instrument qualification rate is 69%. The awareness rate of patients regarding the comparison of portable blood glucose meters is 73%, but the execution rate of quality control and standard comparison of portable blood glucose meters by patients is 0. Conclusion:The quality of portable blood glucose meters in Zhejiang Province is uneven, with the highest pass rate for portable blood glucose meters from hospitals. Patients have weak awareness of quality control and comparison of portable blood glucose meters.

Artificial vascular graft(AVG)fistula is widely used for hemodialysis treatment in patients with renal failure.However,it has poor elasticity and compliance,leading to stenosis and thrombosis.The ideal artificial blood vessel for dialysis should replicate the structure and components of a real artery,which is primarily maintained by collagen in the extracellular matrix(ECM)of arterial cells.Studies have revealed that in hepatitis B virus(HBV)-induced liver fibrosis,hepatic stellate cells(HSCs)become hyperactive and produce excessive ECM fibers.Furthermore,mechanical stimulation can encourage ECM secretion and remodeling of a fiber structure.Based on the above factors,we transfected HSCs with the hepatitis B viral X(HBX)gene for simulating the process of HBV infection.Subsequently,these HBX-HSCs were implanted into a polycaprolactone-polyurethane(PCL-PU)bilayer scaffold in which the inner layer is dense and the outer layer consists of pores,which was mechanically stimulated to promote the secretion of collagen nanofiber from the HBX-HSCs and to facilitate crosslinking with the scaffold.We obtained an ECM-PCL-PU composite bionic blood vessel that could act as access for dialysis after decellularization.Then,the vessel scaffold was implanted into a rabbit's neck arteriovenous fistula model.It exhibited strong tensile strength and smooth blood flow and formed autologous blood vessels in the rabbit's body.Our study demonstrates the use of human cells to create biomimetic dialysis blood vessels,providing a novel approach for creating clinical vascular access for dialysis.

Objective:To explore the correlation between subclavian artery stenosis disease (SASD) classification and posterior circulation ischemia.Methods:A retrospective study was performed; the clinical data, and Doppler vascular ultrasound and vascular imaging results of 81 SASD patients, admitted to Cerebrovascular Stenosis Diagnosis and Treatment Center, Second Affiliated Hospital of Qiqihar Medical College and Department of Neurology, Rocket Force Specialty Medical Center from May 2018 to August 2023, were collected. SASD was categorized into 2 types (single type and concurrent type) based on the presence or absence of other posterior circulation artery (basilar artery, vertebral artery, or subclavian artery distal segment) stenosis/occlusion, and into 3 groups (non-posterior circulation ischemia group, posterior circulation transient ischemic attack group and posterior circulation cerebral infarction group) based on the presence or absence of posterior circulation ischemia. Blood stealing pathways in different SASD classifications were analyzed, and correlation of SASD classification with posterior circulation ischemia was discussed.Results:Single-type SASD was noted in 44 patients (54.3%), mainly initiating blood stealing through the vertebral artery to the vertebral artery and then to the subclavian artery ( n=26); concurrent-type SASD was noted in 37 patients (45.7%), mainly initiating blood stealing through the occipital artery to the costocervical trunk and then to the subclavian artery ( n=10). Sixty-five patients (80.2%) were into the non-posterior circulation ischemia group, 4 (4.9%) into the posterior circulation transient ischemic attack group and 12 (14.8%) into the posterior circulation cerebral infarction group. Among the 44 patients with single-type SASD, 39 did not have posterior circulation ischemia, and 3 had posterior circulation cerebral infarction. Among the 37 patients with concurrent-type SASD, 26 did not have posterior circulation ischemia, and 9 had posterior circulation cerebral infarction. Conclusion:Initiation of blood stealing in SASD patients is related to SASD classification, and concurrent-type SASD patients trend to have posterior circulation ischemia.

Objective To evaluate the role of preoperative serological indexes in predicting long-term survival and tumor recurrence of hepatocellular carcinoma (HCC) patients after liver transplantation, aiming to explore its significance in expanding the Milan criteria. Methods Clinical data of 669 recipients undergoing liver transplantation for HCC were retrospectively analyzed. The optimal cut-off value was calculated by the receiver operating characteristic (ROC) curve. The risk factors affecting the overall survival and recurrence-free survival rates of HCC patients after liver transplantation were identified by univariate and multivariate regression analyses. The correlation between preoperative serum liver enzymes and pathological characteristics in HCC patients was analyzed. The predictive values of alpha-fetoprotein (AFP) combined with γ -glutamyl transferase (GGT) and different liver transplant criteria for the survival and recurrence of HCC patients after liver transplantation were compared. Results Exceeded Milan criteria, total tumor diameter (TTD) > 8 cm, AFP > 200 ng/mL and GGT > 84 U/L were the independent risk factors for the overall survival and recurrence-free survival rates of HCC patients after liver transplantation (all P < 0.05). Correlation analysis showed that preoperative serum GGT level was correlated with TTD, number of tumor, venous invasion, microsatellite lesions, capsular invasion, tumor, node, metastasis (TNM) stage, Child-Pugh score and exceeded Milan criteria (all P < 0.05). Milan-AFP-GGT-TTD (M-AGT) criteria were proposed by combining Milan criteria, TTD with serum liver enzyme indexes (AFP and GGT). The 5-year overall survival and recurrence-free survival rates of HCC recipients who met the M-AGT criteria (111 cases of exceeded Milan criteria) were significantly higher than those who met Hangzhou criteria (both P < 0.05), whereas had no significant difference from their counterparts who met the University of California at San Francisco (UCSF) criteria (both P > 0.05). Conclusions Preoperative serological indexes of AFP and GGT could effectively predict the long-term survival and tumor recurrence of HCC patients after liver transplantation. Establishing the M-AGT criteria based on serological indexes contributes to expanding the Milan criteria, which is convenient and feasible.