Liver fibrosis is a significant health burden,marked by the consistent deposition of collagen.Unfortunately,the currently available treatment approaches for this condition are far from optimal.Lysyl oxidase-like protein 2(LOXL2)secreted by hepatic stellate cells(HSCs)is a crucial player in the cross-linking of matrix collagen and is a significant target for treating liver fibrosis.Mesenchymal stem cell-derived small extracellular vesicles(MSC-sEVs)have been proposed as a potential treatment option for chronic liver disorders.Previous studies have found that MSC-sEV can be used for microRNA delivery into target cells or tissues.It is currently unclear whether microRNA-4465(miR-4465)can target LOXL2 and inhibit HSC activation.Additionally,it is uncertain whether MSC-sEV can be utilized as a gene therapy vector to carry miR-4465 and effectively inhibit the progression of liver fibrosis.This study explored the effect of miR-4465-modified MSC-sEV(MSC-sEVmiR-4465)on LOXL2 expression and liver fibrosis development.The results showed that miR-4465 can bind specifically to the promoter of the LOXL2 gene in HSC.Moreover,MSC-sEVmiR-4465 inhibited HSC activation and collagen expression by downregulating LOXL2 expression in vitro.MSC-sEVmiR-4465 injection could reduce HSC activation and collagen deposition in the CCl4-induced mouse model.MSC-sEVmiR-4465 mediating via LOXL2 also hindered the migration and invasion of HepG2 cells.In conclusion,we found that MSC-sEV can deliver miR-4465 into HSC to alleviate liver fibrosis via altering LOXL2,which might provide a promising therapeutic strategy for liver diseases.

Sleep-related eating disorder (SRED) is a sleep disorder characterized by repeated involuntary eating and drinking. The clinic of this disease is not rare, but few reports are noted in China; doctors and patients lack of knowledge. This paper reviews the literature on SRED, summarizes the shortcomings of existing research, and proposes future research directions, aiming to provide references for researchers to further explore this field.

Objective:To study the risk factors of massive bleeding in patients with acute Stanford type A aortic dissection undergoing moderate hypothermic circulatory arrest repair.Methods:From January 2016 to October 2017, 486 consecutive patients with acute type A aortic dissection were included in the study. All operations were performed with moderate hypothermic circulatory arrest. The basic clinical data of patients were collected retrospectively. Massive bleeding was defined according to definition of Universal Definition of Perioperative Bleeding(UDPB) 4 class and the Blood Conservation Using Antifibrinolytics in a Randomized Trial(BART). Significant variables in univariate analysis were included in multivariate logistic regression analysis. Results:Thirty-four patients(7.00%) died in hospital. A total of one hundred and eighty-seven patients(38.48%) fulfilled criteria of the definition of BART massive bleeding. Forty-five patients(9.26%), 8 patients(1.65%), 114 patients(23.46%), 147 patients(30.25%) and 172 patients(35.39%) were in grade 0, grade 1, grade 2 and grade 4, respectively. With BART as the end point, the result of multivariate logistic regression showed that female gender( OR=3.32, P<0.001), anemia( OR=2.24, P=0.04), clearance creatine≤85 ml/min( OR=1.93, P=0.01), D-dimer level(every 500 ng/ml increase, OR=1.02, P=0.003), cardiopulmonary bypass(CPB) time( OR=1.01, P<0.001), total arch replacement(TAR, OR=2.40, P=0.02) were independent risk factors for massive bleeding, and the time from onset to operation( OR=0.86, P=0.01) was protective factor. With UDPB 4 class as the end point, multivariate logistic regression showed that creatinine clearance≤85 ml/min( OR=2.05, P=0.001), CPB time( OR=1.01, P=0.04) were independent risk factors for massive bleeding. The time from anset to operation( OR=0.85, P=0.002) and Bentall procedure( OR=0.65, P=0.04) were the protective factors. Conclusion:Massive bleeding was more common in acute Stanford type A aortic dissection. Female gender, poor preoperative renal function, high D-dimer level, early time accepting surgical operation and long CPB were independent risk factors. For high-risk patients, simple and effective surgical methods should be taken to reduce the risk of bleeding.

Objective:Acute type A dissection with mitral regurgitation was very rare. To sum up our experience of surgical treatment of acute type A dissection with mitral regurgitation.Methods:From October 2010 to January 2017, 17 patients with acute type A dissection with mitral regurgitation underwent surgical treatment. There were 12 males, 5 females; mean age, (38±11) years(range, 18-59 years). Hypertension was noted in 9 patients, Marfan syndrome in 2 patients, renal dysfuction in 3 patients, cardiac dysfunction in 3 patients, lower limb ischemia was observed in 2 patients and dilated cardiomyopathy in one patient. Preoperative abdominal aortic replacement was observed in one case.Results:Concomitant procedures included Bentall procedure in 16 patients, aortic arch operation in 15 patients, tricuspid valve plasty in 3 patients, coronary artery bypass grafting in 2 patients and asceding aorta - femoral artery bypass in one patient. 11 patients required mechanical ventilation for <24 hours, 3 cases for <48 hours and 3 subjects for > 48 hours. Continuous renal replacement therapy was required in 3 patients, re-operation in one patient and partial pericardial excision in one patient. One patient was out of follow-up. The remaining had a normal life during follow-up.Conclusion:Repair of acute type A dissection with mitral regurgitation carried with a relatively high mortality and morbidity. Under better protection of heart and cerebrum, it obtained accepted surgical results in patients with this lesion

Objective:To observe the clinical effect of the improved eyebrow lifting operation through the incision under the eyebrow to improve the upper eyelid skin relaxation and explore its application scope.Methods:From March to October 2019, 32 female patients in the outpatient department of Huangsi Plastic Surgery Hospital underwent the improved eyebrow lifting operation through the incision under the eyebrow.Results:After the improved eyebrow lifting procedure, the blepharoptosis of the upper eyelid in 32 patients was significantly improved, and there was no operative complication, and the eyebrow shape and eyebrow arch fullness were satisfactory.Conclusions:The eyebrow arch is full, and the eyebrow shape and the distance between eyebrow and eye are not changed significantly after the operation.

Objective: To examine the outcomes of surgical treatment in patients of type Stanford A aortic dissection with Kommerell′s diverticulum. Methods: From January 2009 to August 2017, patients of type Stanford A aortic dissection with Kommerell′s diverticulum who underwent the Sun procedure were enrolled. Patient demographic, preoperative, intraoperative, early morbidity and mortality data were collected from medical and electronic patient records. Clinical follow-up data, including late morbidity and mortality, were obtained by telephone interview with the patient. Results: A total of 13 patients (11 males and 2 females; mean age 47 years) were included. The mean maximum diameter of Kommerell′s diverticulum was (21.8±7.7) mm. The Kommerell′s diverticulum was repaired by direct suture of the orifice in 3 patients, ligation of the aberrant right subclavian artery in 9 patients, and suture and ligation in 1 patient, respectively. No perioperative death occurred. One patient underwent a reexploration for bleeding. There were 2 late deaths: unknown reason in 1 patient and septic shock secondary to renal abscess in 1 patient. Reintervention was performed in one patient for a persistent type Ⅱ endoleak. Conclusions The Sun procedure with femoral artery cannulation for cardiopulmonary bypass, unilateral carotid artery cannulation for selective cerebral perfusion and ligation of aberrant right subclavian artery on the right side of the trachea is an appropriate therapeutic strategy for patients of type Stanford A aortic dissection with Kommerell′s diverticulum.

Objective: To observe the clinical effect of the modified bandaging method for facial rejuvenation with small incision and to explore its applicable scope. Methods: From March to October 2019, 12 people in the outpatient department underwent small incision facial rejuvenation surgery and the improved bandaging method was used. Results: After the small incision facial rejuvenation operation, the relaxation and drooping of the facial tissue in 12 patients were significantly improved without complications, and no cotton pad, bandage and elastic mesh cover were used for fixation. Conclusions This improved bandaging method does not affect daily work and life, and meets the needs of patients with this requirement, and plays a very good role in promoting the small incision facial rejuvenation surgery.

Objective To review the outcomes of the frozen elephant trunk implantation in patients with pseudoaneurysms of the distal aortic arch and descending aorta.Methods From March 2009 to December 2017,patients with pseudoaneurysms of the distal aortic arch and descending aorta who underwent the frozen elephant trunk implantation were enrolled.Patient demographic,preoperative,intraoperative,early morbidity and mortality data were collected from medical and electronic patient records.Clinical follow-up data,including late morbidity and mortality,were obtained by telephone interview with the patient.Results A total of 14 patients were included,13 males and 1 females,aged(41.0 ± 14.7) years.Early mortality rate was 7.14％ (1/14).The cause of death was rupture of the distal descending thoracic aorta.The early complications included reexploration for bleeding in 1 patient and pericardial window for delayed pericardial effusion in 1 patient.The mean follow-up was(32.3 ± 22.3) months.There was 1 late death from severe pulmonary infection.Conclusion The frozen elephant trunk implantation is an appropriate therapeutic strategy for patients with pseudoaneurysms of the distal aortic arch and descending aorta.

Objective To explore the risk factors of renal replacement therapy for acute Stanford A aortic dissection patients with acute renal injury (AKI) after Sun's operation.Methods From January 2016 to October 2017,144 patients with Stanford A aortic dissection who underwent Sun's procedure were enrolled in the study.Univariate analysis and logistic regression analysis were used to analyze the risk factors of continuous renal replacement therapy (CRRT).Variables with statistical difference from univariate analysis were included in multivariate logistic regression analysis.Results 8 patients (5.55％)died in hospital.16 patients (11.11％) needed CRRT for AKI.5 of them (31.25％) died in hospital.Of the 11 surviving patients,5 had complete recovery of renal function within 2 weeks after operation and stopped renal replacement therapy.The remaining 6 patients recovered their renal function within 3 months and stopped renal replacement therapy.Univariate analysis showed that there were significant differences in preoperative age,creatinine clearance,peripheral white blood cell count,D-dimer,myoglobin,double renal arteries in false lumen,aortic cross clamp time and red blood cell transfusions between the two groups.The above risk factors were included in multivariate logistic regression.The results showed that double renal arteries in false lumen (OR =24.64,P =0.002),serum creatinine clearance ＜ 85 ml/min (OR =4.99,P =0.02) and red blood cell transfusions (OR =1.17,P ＜ 0.001) were independent risk factors.Conclusion Double renal arteries in false lumen,serum creatinine clearance ＜ 85ml/min and red blood cell transfusions were independent risk factors for CRRT after Sun's procedure for acute Stanford A aortic dissection.For high-risk patients with double renal arteries in false lumen,and markedly decreased creatinine clearance before operation,red blood cell transfusions should be reduced as much as possible to reduce the risk of AKI after operation.

Objective Blood trace and extraction is the important premising for forensic medicine appraisal reliability, this paper puts forward the blood trace and extraction method of using pyramidon. Methods Using pyramidon and benzidine to treat diluted fresh blood, and using Chelex-100 reagent treatment after the DNA in blood samples, and then applying the technology of PCR-STR and fluorescence detection test sample STR typing, observing the STR classification results and the detection sensitivity of DNA, comparing the different influence of two method on subsequent DNA - STR inspection. Results The pyramidon method can detect the minimum hemoglobin concentration is 25μg/mL,which was lower than 5μg/mL of the benzidine method. The results showed that the effective typing rate of the benzidine method was 18.09%, which was significantly lower than 96.67% of the method of the pyramidon method. The tail length of the detection group was 52.40±9.21, and the Oliva tail moment was 43.29±4.85%, and the tail intensity was 16.25±2.35, which was significantly higher than that of the pyramidon group (P < 0.01). Conclusions The sensitivity of the pyramidon method is moderate, and the influence of the following STR subtype and the nuclear DNA of the sample is significantly lower than that of benzidine, which can be used in the pre-experiment of blood stain in forensic medicine.