Objective: To investigate the expression of α-B crystalline in triple-negative breast cancer (TNBC) and discuss its role in the prognosis and targeted therapy of TNBC by analyzing the correlation amongα-B crystalline and the clinico-pathological indi-ces of breast cancer. Methods:Immunohistochemistry SP assay was used to determineα-B crystalline expression in paraffin-embedded specimens of 30 cases of TNBC and 50 cases of non-TNBC tissues. The differences in protein expressions among tissues were com-pared, and correlation analysis was performed to determine the relationship between protein expression and clinico-pathological indi-ces. Results:The positive expression rate ofα-B crystalline was 66.67%in TNBC (20/30) and 42.00%in non-TNBC (21/50), which in-dicates that the expression is significantly higher in TNBC than in the non-TNBC tissues (χ2=4.566, P<0.05). The expression ofα-B crystalline in breast cancer has no significant difference in terms of age, tumor diameter, and cancer stage (P>0.05), but exhibits a differ-ence in terms of lymph node metastasis and the number of metastasized lymph nodes [P53, Ki67 (P<0.05)], which presents a positive correlation (r=0.251). Theα-B crystalline expression in TNBC has no significant difference among indices such as age, tumor diameter, nodal metastasis, number of metastasis, P53, cancer stage, and Ki67 (P>0.05). Conclusion:Significant differences were found inα-B crystalline expression between TNBC and non-TNBC.α-B crystalline is highly expressed in TNBC tissues, and the expression is signif-icantly higher in TNBC tissues than that in non-TNBC tissues.α-B crystalline is associated with poor prognosis of breast cancer. Conse-quently, the overexpression ofα-B crystalline in TNBC may be a reason for unfavorable TNBC prognosis.

Objective To investigate the effect of midazolam on cardiopulmonary function during colonoscopy.Methods From June 2014 to June 2015,214 patients underwent colonoscopy were randomly divided into two groups:109 patients in the midazolam group and 105 patients in the non-sedated group(control group).systolic blood pressure(SBP),diastolic blood pressure (DBP),heart rate (HR) and peripheral blood oxygen partial pressure (SpO2) in the two groups before and after colonoscopy were compared.Results In the midazolam group,SBP and DBP decreased more during colonoscopy than in the control group.However,the frequency with a significant change in SBP was similar in both groups.During colonoscopy,HR andSpO2 decreased more in the midazolam group compared to those in the control group.SpO2 levels returned to normal after the procedure in two groups.Conclusion Midazolam has a tolerable effect on cardiopulmonary function and may be safely used during colonoscopy.

Objective To evaluate the efficacy of intratympanic steroid therapy compared with systemic ster‐oid therapy on the treatment of idiopathic sudden sensorineural hearing loss (ISSNHL) patients with damaged glu‐cose tolerance .Methods Fifty first -diagnosed unilateral ISSNHL patients with damaged glucose tolerance were randomized devided equally to the intervention group (intratympanic steroid therapy) or the control group (systemic steroid therapy) ,all patients received conventional drug therapy simultaneously .Pure-tone hearing threshold tests were performed in all patients every 3 days after the first time ,and repeated measures anova was used to assess effects of hearing recovery accompanied with time .Results The mean hearing threshold in the control group de‐creased from 85 .4 ± 5 .6 dB to 48 .2 ± 4 .9 dB ,while in the intervention group it decreased from 84 .8 ± 5 .6 dB to 31 .7 ± 4 .6 dB .Total effective rate in the intervention group (84 .00% ,21/95) was higher than that in the control group (68 .00% ,17/25)(P<0 .05) .Conclusion The intratympanic steroid therapy is more effective than systemic steroid therapy in the treatment of ISSNHL patients with damaged glucose tolerance .

Objective:To explore the efficacy and safety of ABO-incompatible (ABO-I) liver transplantation for hepatocellular carcinoma.Methods:Forty-four ABO-I liver transplantation recipients were matched with ABO-compatible (ABO-C) recipients by propensity score matching in a ratio of 1: 2. The cumulative overall survival (OS) rate, disease-free survival (DFS) rate and complications were compared between two groups.Results:Compared with ABO-C group, the levels of serum creatinine (sCr) were significantly higher in ABO-I group at Days 7 and 14 post-operation (89.1±36.9 vs 74.8±26.2 umol/L, P=0.001; 77.9±27.6 vs 67.6±18.6 umol/L, P=0.002). The incidence of hepatic arterial thrombosis (9.1% vs 1.1%, P=0.024), biliary complications (25.0% vs 8.0%, P=0.007), early allograft dysfunction (52.3% vs 31.8%, P<0.001) and acute kidney injury(68.1% vs 36.4%, P<0.001) also significantly spiked in ABO-I group. The postoperative cumulative OS, DFS and graft survival rate of ABO-C group were significantly higher than those of ABO-I group ( P<0.001). No inter-group difference existed in survival rate or complication incidence in accordance with the Hangzhou criteria. However, OS, DFS and graft survival rates of ABO-I group were significantly lower than those of ABO-C group ( P<0.001) and the incidence of hepatic artery thrombosis (6.7% vs 0.0%, P=0.043), biliary complications (30.0% vs 6.7%, P=0.003), early allograft dysfunction (53.3% vs 28.3%, P=0.020) and acute kidney injury (63.3% vs 28.3%, P<0.001) significantly rose exceeding the Hangzhou criteria. Conclusions:ABO-I liver transplantation does not affect the OS rate, graft survival rate and postoperative complications in accordance with the Hangzhou criteria. For HCC recipients exceeding the Hangzhou criteria, the prognosis of ABO-I liver transplantation is significantly inferior to that of ABO-C liver transplantation. Careful implementations and accurate evaluations should be performed for ABO-I liver transplantation. Patients exceeding the Hangzhou criteria may receive down-staging treatment so as to obtain transplantation opportunities and yield a better prognosis.

Objective:To investigate the clinical features and prognosis of acute necrotizing encephalopathy (ANE) in children.Methods:The clinical data and follow-up information of 41 pediatric patients with ANE treated in Wuhan Children′s Hospital, Tongji Medical College, Huazhong University of Science & Technology from January 2014 to September 2019 were retrospectively reviewed.Results:The 41 patients included 23 males and 18 females with the onset age of (4.4±3.2) years.The main prodromal symptoms were gastrointestinal (20/41 cases, 48.8%) and respiratory infections (19/41 cases, 46.3%). Acute encephalopathy progressed rapidly following the prodromal infection [29 cases (70.7%) ≤2 days], and patients had clinical manifestations of coma (32/41 cases, 78.0%), convulsion (32/41 cases, 78.0%), multiple organ dysfunction (27/41 cases, 65.9%), shock and disseminated intravascular coagulation were rarely occured, and 28 cases (68.3%) were admitted to intensive care unit for treatment.Brain magnetic resonance imaging (MRI) showed lesion involving thalamus (41/41 cases, 100.0%), periventricular white matter (34/41 cases, 82.9%), brainstem (31/41 cases, 75.6%), basal ganglia (26/41 cases, 63.4%), cerebral cortex and subcortex (20/41 cases, 48.8%) and cerebellum (18/41 cases, 43.9%). The common presentations on the apparent diffusion coefficient mapping of brain MRI were " tricolor pattern" or " bicolor pattern" of the thalamus.During follow-up (≥ 6 months), MRI showed that hemorrhage, cystic degeneration and atrophy changed dynamically with the progression of ANE.All cases were treated with glucocorticoids, 38 cases(92.7%) with intravenous immune globulin.Seven cases (17.1%) were died and the 34 survivors had different degrees of neurological dysfunction.Conclusions:ANE in children is a distinctive type of clinicoradiologic syndrome with rapid progression and various presentations.Brain MRI has typical imaging characteristics and dynamically indicates the progression of this disease.The treatment options are still limited, the prognosis is poor and the survivors are often with neurological dysfunction.

AIM:To investigate the potential impact of mitoNEET[mitochondrial protein containing Asn-Glu-Glu-Thr(NEET)sequence]on mitochondrial metabolism in brown adipocytes,and to elucidate its underlying mecha-nism.METHODS:An in vitro model of primary mouse brown adipocytes was established.Western blot were utilized to detect relevant proteins,and iron ion and ATP content was measured using kits.Mitochondrial membrane potential and re-active oxygen species(ROS)were assessed by fluorescence microscopy and flow cytometry.RESULTS:The expression of the ferroptosis-related protein ACSL4 increased by 1.13 times in ferroptosis inducer erastin treatment group,whereas the expression of SLC7A11 and GPX4 decreased by 27.33%and 25.33%,respectively,compared with control group(P<0.05).The expression of Nrf1,PGC-1α,MFN2 and UCP1 proteins,related to mitochondrial energy metabolism,de-creased by 20.98%,15.17%,15.03%and 34.22%,respectively(P<0.05).Additionally,the mitoNEET protein con-tent was significantly reduced by 42.14%(P<0.05).The iron ion content in erastin group was substantially increased by 1.80 times compared with control group.However,a notable decrease in ATP content of 14.95%was seen(P<0.05).The results obtained from fluorescence microscopy and flow cytometry demonstrated a significant decrease in the mitochon-drial membrane potential of brown adipocytes in erastin group,with reductions of 52.18%and 61.31%(P<0.05),re-spectively.A substantial increase in mitochondrial ROS content of 80.97%was seen(P<0.05).Western blot analysis of overexpressed stable strains revealed a significant elevation in mitoNEET levels in brown adipocytes following lentivirus transfection,exhibiting an increase of 11.19 times(P<0.05),thus confirming successful transfection.The LV-mitoNEET group exhibited a significant decrease of 37.95%in the expression of ferroptosis-related protein ACSL4 in brown adipose cells compared with control group.Additionally,there was a notable increase of 77.82%and 66.3%in the expression of SLC7A11 and GPX4,respectively(P<0.05).Up-regulation was observed in the expression of MFN2(79.06%),PGC-1α(72.89%),Nrf1(40.14%),and UCP1(31.68%)(P<0.05).The test results demonstrated that the LV-mitoNEET group experienced a reduction of 43.5%in iron ion content compared with control group while exhibiting an increase of 33.5%in ATP content(P<0.05).The results obtained from fluorescence microscopy and flow cytometry demonstrated that mitoNEET overexpression led to a significant increase in the mitochondrial membrane potential of erastin-induced brown adipocytes,with increments of 17.61%and 96.05%,respectively.Additionally,mitoNEET overexpression effec-tively reduced the production of mitochondrial ROS by 24.48%(P<0.05).CONCLUSION:Our findings suggest that mitoNEET overexpression can effectively inhibit the disruption of mitochondrial energy metabolism caused by ferroptosis-induced death of brown adipocytes.