Aim To establish a gait analysis system based on DeepLabCut(DLC)algorithm for evaluating motor function in aged mice.Methods Based on DLC algorithm in deep learning technology,treadmill device and fully closed design were used in the system,including software and hardware.This system was applied to evaluate gait characteristics of mice due to aging un-der different movement modes.Correlation analysis was used to explore the effects of body weight and body length on gait indica-tors.Results This system realized the synchronous analysis of three-dimensional gait(lateral and ventral plane)of mice at specific gait speed,and automatically quantified 47 gait indica-tors.Using this system,it was found that during walking(15 cm·s-1),the standard deviation of body turning angle decreased,forelimb sway duration,standard deviation of knee angle,mean outward angles of left and right hind paw increased in 8 and 15 month-old mice,compared with 2-month-old mice.However,15-month-old mice showed decreased walking frequency,and in-creased stride width,total duration of double support,and knee extension and contraction distance.In addition,at trot(20 cm·s-1),15-month-old mice were unable to walk steadily,and 8-month-old mice had increased total duration of double support and mean outward angles of left hind paw,compared with 2-month-old mice.Correlation analysis revealed that indicators like walking frequency,stride width,forelimb sway duration,total duration of double support,standard deviation of knee an-gle,knee extension and contraction distance,were not affected by changes in body weight and body length.Conclusions The gait analysis system based on DLC algorithm can achieve a more sensitive,accurate and comprehensive evaluation of the gait of aged mice,distinguishing the gait characteristics of aged mice to maintain gait stability,and selecting behavioral indicators that better reflect the gait changes of aged mice.It provides a meth-odological basis for more effective assessment of efficacy and side effects of drugs for anti-aging and anti-decline of motor coordina-tion in the future.

Objective To summarize the reasons and management strategies of reoperation after oblique lateral interbody fusion(OLIF),and put forward preventive measures.Methods From October 2015 to December 2019,23 patients who under-went reoperation after OLIF in four spine surgery centers were retrospectively analyzed.There were 9 males and 14 females with an average age of(61.89±8.80)years old ranging from 44 to 81 years old.The index diagnosis was degenerative lumbar intervertebral dics diseases in 3 cases,discogenie low back pain in 1 case,degenerative lumbar spondylolisthesis in 6 cases,lumbar spinal stenosis in 9 cases and degenerative lumbar spinal kyphoscoliosis in 4 cases.Sixteen patients were primarily treated with Stand-alone OLIF procedures and 7 cases were primarily treated with OLIF combined with posterior pedicle screw fixation.There were 17 cases of single fusion segment,2 of 2 fusion segments,4 of 3 fusion segments.All the cases underwent reoperation within 3 months after the initial surgery.The strategies of reoperation included supplementary posterior pedicle screw instrumentation in 16 cases;posterior laminectomy,cage adjustment and neurolysis in 2 cases,arthroplasty and neuroly-sis under endoscope in 1 case,posterior laminectomy and neurolysis in 1 case,pedicle screw adjustment in 1 case,exploration and decompression under percutaneous endoscopic in 1 case,interbody fusion cage and pedicle screw revision in 1 case.Visu-al analogue scale(VAS)and Oswestry disability index(ODI)index were used to evaluate and compare the recovery of low back pain and lumbar function before reoperation and at the last follow-up.During the follow-up process,the phenomenon of fusion cage settlement or re-displacement,as well as the condition of intervertebral fusion,were observed.The changes in in-tervertebral space height before the first operation,after the first operation,before the second operation,3 to 5 days after the second operation,6 months after the second operation,and at the latest follow-up were measured and compared.Results There was no skin necrosis and infection.All patients were followed up from 12 to 48 months with an average of(28.1±7.3)months.Nerve root injury symptoms were relieved within 3 to 6 months.No cage transverse shifting and no dislodgement,loosening or breakage of the instrumentation was observed in any patient during the follow-up period.Though the intervertebral disc height was obviously increased at the first postoperative,there was a rapid loss in the early stage,and still partially lost after reopera-tion.The VAS for back pain recovered from(6.20±1.69)points preoperatively to(1.60±0.71)points postoperatively(P＜0.05).The ODI recovered from(40.60±7.01)％preoperatively to(9.14±2.66)％postoperatively(P＜0.05).Conclusion There is a risk of reoperation due to failure after OLIF surgery.The reasons for reoperation include preoperative bone loss or osteoporosis the initial surgery was performed by Stand-alone,intraoperative endplate injury,significant subsidence of the fusion cage after surgery,postoperative fusion cage displacement,nerve damage,etc.As long as it is discovered in a timely manner and handled properly,further surgery after OLIF surgery can achieve better clinical results,but prevention still needs to be strengthened.

Objective:To explore expression and prognostic value of oncostatin M(OSM)in endometrial cancer and to analyze relationship between OSM expression and immune cell infiltration in endometrial cancer tissues.Methods:OSM expression in pan-can-cer was analyzed by TIMER database,OSM expression in endometrial cancer and normal tissues was compared,and survival analysis for patients with different OSM expression was performed;relationship between OSM expression and immune cell infiltration was analyzed by TIMER and TISIDB,and ssGSEA algorithm was used to calculate difference in abundance of immune cell infiltration in samples with different OSM expression;GSEA software was applied to perform enrichment analysis;clinical tissue samples were collected for validation.Results:OSM expression was higher in endometrial cancer tissues than that in normal endometrial tissues(P=4.1e-28),and endometrial cancer patients with high OSM expression had prolonged recurrence-free survival(RFS)(P=0.004 8).OSM expression was positively correlated with abundance of immune cell infiltration and genetic markers of immune cells(P<0.05).OSM was mainly enriched in immune-related signaling pathways.OSM expression was higher in endometrial cancer tissues than normal and atypical hyperplastic tissues(P=0.016 9).Proportions of immune cell markers CD4,CD8,and CD68 were increased in tumor tissues with high OSM expression(all P<0.05),which were positively correlated with OSM expression.Conclusion:OSM is highly expressed in endometrial cancer tissues and correlated with prognosis;OSM expression is positively correlated with immune cell infiltration level and can be used as a biomarker for immunotherapy and prognosis.

Objective:Serological and molecular biology methods were used to identify the blood type of a patient with forward and reverse ABO typing inconsistency,and to explore the genetic characteristics of this blood type.Methods:The ABO phenotype of the proband was identified by tube method,and the ABO blood group genotype of the proband and her parents was determined by fluorescent PCR.The 7 exons of the ABO gene were directly sequenced and analyzed.Results:According to preliminary serological identification,the ABO phenotype of this patient was Bel subtype.Genotyping tests showed that the ABO genotype of the proband and her father was B/O1,and her mother was O1/O1.Sequencing of exons revealed novel heterozygous variations in exon 1:c.16_17delinsTGTTGCA.Conclusion:The Novel variations in exon 1 led to Bel subtype in the ABO blood group of the proband,and these variations are heritable.

The nursing care of a case of Sheehan syndrome with infection and combined with diabetic ketoacidosis was summarized.To improve prognosis of the disease and guarantee patient's safety,key points of nursing care are as following:sufficient early liquid resuscitation and target-oriented management of blood glucose to correct internal environment disorder;dynamic monitoring of condition,implementing hormone replacement therapy by stages to prevent pituitary crises;to measure the mental state and implement cluster intervention measures to prevent infection worsening;regular follow-up and disease education to improve patients'disease self-management ability.After positive treatment and careful nursing care,no serious complications occurred,blood glucose was controlled well,and the case was in stable conditions and was discharged.

Objective:To observe the rehabilitation effect of balance training relying on tilted table on diaphragmatic function of patients with prolonged disorder of consciousness (pDoC).Methods:A prospective study was performed. Thirty patients with pDoC were enrolled from Department of Hyperbaric Oxygen Medicine and Rehabilitation, General Hospital of Southern Theater Command of PLA from May to December 2023. The pateints were divided into study group ( n=15) and control group ( n=15) according to different rehabilitation. Patients from the control group received conventional rehabilitation, while those in the study group received passive balance training relying on tilted table in addition to conventional rehabilitation. Diaphragmatic ultrasound examination was performed before treatment, and 4 and 8 weeks after treatment to measure diaphragm excursion (DE), diaphragm thickening inspiration (DTei), diaphragm thickening expiration (DTee) and diaphragm thickening fraction (DTF) so as to assess the diaphragmatic functions of patients with pDoC. Results:During treatment, 2 patients dropped out from the study group resulting from the willing of the family members, ultimately including 13 and 15 patients in the study and control groups, respectively. (1) Between-group comparison: no significant difference in DE, DTei, DTee or DTF was noted between the study group and control group 4 weeks after treatment ( P>0.05). However, 8 weeks after treatment, the study group had statistically increased DE, DTei and DTF compared with the control group ([1.65±0.32] cm vs. [1.21±0.22] cm; [2.07±0.26] cm vs. [1.83±0.26] cm; and [24.39±3.19]% vs. [18.93±2.50]%). (2) Within-group comparison: both group had significantly increased DE 4 and 8 weeks after treatment compared with those before treatment ( P<0.05); in the study group, DE 8 weeks after treatment was significantly increased compared with that 4 weeks after treatment ( P<0.05). No significant difference in DTei, DTee or DTF was noted in both groups between 4 weeks after treatment and before treatment ( P>0.05). In the study group, DTei, DTee and DTF 8 weeks after treatment were significantly higher than those before treatment and 4 weeks after treatment ( P<0.05). Conclusion:Balance training relying on tilted table is feasible and effective in improving diaphragmatic function in patients with pDoC, and the effect is positively correlated with treatment time within a certain time.

Objective:To investigate the role of platelet-rich fibrin (PRF) membrane tamponade combined with silicone oil filling in the treatment of high myopia macular hole (HMMH) with retinal detachment (RD).Methods:A randomized controlled study was conducted.A total of 52 patients (52 eyes) with HMMH with RD were enrolled at the Eye Center, Renmin Hospital of Wuhan University from September 2021 to April 2023.The patients were randomly divided into three groups according to the random number table method.All patients in the three groups underwent standard three-channel 23-gauge pars plana vitrectomy.In the internal limiting membrane (ILM) peeling group including 18 cases (18 eyes), the ILM was peeled intraoperatively.In the ILM tamponade group including 16 cases (16 eyes), the ILM flap was inverted and filled into the macular hole (MH).In the PRF tamponade group including 18 cases (18 eyes), the MH was filled with PRF.Intraocular pressure measurement, best corrected visual acuity (BCVA) measurement, and central macular thickness (CMT) measured by optical coherence tomography were performed preoperatively and 1 week, 1 month, 3 months, and 6 months postoperatively.Superficial retinal vessel density (SVD) and deep retinal vessel density (DVD) were determined by optical coherence tomography angiography before surgery and 6 months after surgery.The efficacy of the procedure was determined at six months postoperatively, and the rates of MH closure and retinal reattachment were compared among the three groups.This study adhered to the Declaration of Helsinki and the study protocol was approved by the Ethics Committee of Renmin Hospital of Wuhan University (No.2022-1-X-53).Written informed consent was obtained from each subject before any medical examination.Results:At 6 months postoperatively, the MH closure rates in the ILM peeling, ILM tamponade, and PRF tamponade groups were 83.3%(15/18), 87.5%(14/16), and 94.4%(17/18), respectively, without significant differences among them (fit χ2=1.180, P>0.05).Furthermore, the retinas of all groups were reattached.The postoperative BCVA of ILM peeling, ILM tamponade, and PRF tamponade groups were elevated compared with before surgery, and the differences were statistically significant (all at P<0.05).At 6 months after surgery, the CMT of the PRF tamponade group was significantly thicker than that of the ILM peeling and ILM tamponade groups (both at P<0.05).The CMT of the three groups at different time points after surgery was significantly decreased compared with before surgery, with statistically significant differences (all at P<0.05).SVD and DVD of the three groups at 6 months postoperatively were higher compared with before surgery, with statistically significant differences (all at P<0.05).No serious complications such as endophthalmitis and vitreous haemorrhage occured during treatment and follow-up.Müller cell gliosis was observed in 4 eyes in the ILM tamponade group, and no Müller cell gliosis eyes were seen in the remaining two groups. Conclusions:PRF tamponade combined with silicone oil filling can promote MH healing and retinal reattachment, improve visual acuity and blood flow density in patients suffering from HMMH with RD, and is a safe and effective surgical procedure.

Arsenic compounds are widely used for the therapeutic intervention of multiple diseases.Ancient pharmacologists discovered the medicinal utility of these highly toxic substances,and modern phar-macologists have further recognized the specific active ingredients in human diseases.In particular,Arsenic trioxide(ATO),as a main component,has therapeutic effects on various tumors(including leukemia,hepatocellular carcinoma,lung cancer,etc.).However,its toxicity limits its efficacy,and con-trolling the toxicity has been an important issue.Interestingly,recent evidence has pointed out the pivotal roles of arsenic compounds in phase separation and membraneless organelles formation,which may determine their toxicity and therapeutic efficacy.Here,we summarize the arsenic compounds-regulating phase separation and membraneless organelles formation.We further hypothesize their potential involvement in the therapy and toxicity of arsenic compounds,highlighting potential mecha-nisms underlying the clinical application of arsenic compounds.

Objective To investigate the effect of iTBS stimulation on walking function in patients with stroke.Methods Fifty patients with post-stroke walking dysfunction who met the inclusion criteria were selected for 3-week rehabilitation treatment,and were randomly divided into iTBS group(n=25)and sham group(n=25).The iTBS group was treated with conventional rehabilitation therapy combined with iTBS stimulation of contral-esional cerebellum,and the sham group was treated with conventional rehabilitation therapy plus iTBS stimulation of contralesional cerebellum.Relevant indicators were analyzed before treatment and at 21 days of treatment.Lower limb motor function scores of the two groups were compared before and after treatment.Fugl-Meyer motor function lower limb activity score,Berg Balance Scale score,Brunnstrom stage(lower limb),hamstring/quadriceps(H/Q)on the affected side,Modified Barthel index(MBI),gait analysis parameters,and TMS-MEP were used to evaluate the effectiveness of cerebellar iTBS in the rehabilitation of walking dysfunction after stroke.Results After 21 days of treatment,the improvements of Brunnstrom stage,Holden grade,Berg score,FMA score,6-minute walking dis-tance,NIHSS score and MBI score in iTBS group were significantly better than those in sham group(P<0.05).Af-ter treatment,the H/Q in iTBS group was significantly higher thanbefore(P<0.05),but there was no significant difference between the two groups(P>0.05).Stride speed,stride frequency,stride width,single support phase on the affected side and GDI score in iTBS group were significantly improved compared with sham group(P<0.05),and there was no significant difference in stride length between the two groups after treatment(P>0.05).The amplitude of MEP in the affected cerebral cortex of iTBS group was lower after treatment than before(P<0.05).Conclusion Contralesional cerebellar iTBS combined with routine rehabilitation could improve lower limb walk-ing function and daily living ability of stroke patients.

Objective To investigate the effect of long non-coding RNA(lncRNA)macrophage migration inhibitory factor antisense RNA1(MIF-AS1)on the malignant biological behavior of prostate cancer(PC)cells by regulating the miR-423-5p/pyrroline-5-carboxylic acid reductase 1(PYCR1)axis.Methods PC3 cells were cultured in vitro to knock down the expression of MIF-AS1 or down-regulate the expression of miR-423-5p.The expression of MIF-AS1,miR-423-5p and PYCR1 mRNA in tumor tissues and adjacent tissues and cells of PC patients were detected.The cell proliferation,apoptosis,migration,and invasion were detected and the expression of PYCR1 protein was detected by Western blot.The relationships between miR-423-5p,IF-AS1 and PYCR1 were verified.Results The MIF-AS1 and PYCR1 mRNA were observed to be highly expressed in the tumor tissues,while miR-423-5p was lowly expressed.Silenced MIF-AS1 inhibited the proliferation,migration and invasion of PC3 cells and up-regulated miR-423-5p induced cell apoptosis(P＜0.05).Inhibition of miR-423-5p expression reversed the inhibitory effect of silencing MIF-AS1 on malignant behavior of PC3 cells(P＜0.05).miR-423-5p was correlated with MIF-AS1 and PYCR1 by targeted regulation.Conclusion Silencing MIF-AS1 may inhibit the expression of PYCR1 by up-regulating miR-423-5p,thereby inhibiting the malignant behavior of PC cells.