Objective To identify the factors those regulate CCCP-induced non-canonical autophagy.Methods Different cells expressing GFP-LC3 were treated with or without CCCP (30μM) for 6 h.Fluorescent images were taken and cell lysates were analyzed by western blot assay.Real-time PCR was used to measure the mRNA levels of LC3B.FIP200-KO MEF cells were cultured and treated by 30 μM CCCP with or without water channel inhibitors, for 6 h.Cell lysates were analyzed by Western blot assay.Results CCCP could not induced autophagy in Atg5-KO MEF cells.CCCP could induce non-canonical autophagy in ULK1-KO MEF, FIP200-KO MEF, and Beclin1-KD U251.CCCP treatment in FIP200-KO MEF cells had no effect on the expression level of LC3B mRNA.We also found two distinct aquaporin water channel inhibitors could inhibit the generation of LC3 which was induced by CCCP.Conclusion CCCP induced non-canonical autophagy was Atg5-dependent, but Beclin1-, ULK1-and FIP200-independent.Osmotic imbalance could regulate CCCP-induce non-canonical autophagy.

ObjectiveTo investigate the effect of NOTCH4 expression on vasculogenic mimicry (VM) formation in hepatocellular carcinoma (HCC). MethodsTumor tissues were collected from 85 patients diagnosed with HCC. The relationship between NOTCH4 expression and VM was examined using immunohistochemical staining and PAS/CD31 double staining. The influence of siRNA-mediated NOTCH4 silencing on VM network formation in HCC was observed in the 3D cell culture system in vitro. Experimental data were assessed with Mann-Whitney U test and one-way analysis of variance. ResultsNOTCH4 had significantly higher expression in VM-positive HCC tissues than in VM-negative HCC tissues (P=0.019). In siRNA-treated cells, NOTCH4 mRNA and protein expression was significantly down-regulated compared with those in mock-treated cells (P=0.007; P=0.003) and untreated cells (P=0.000; P=0.000). VM network formation was impaired by inhibition of NOTCH4 expression in the 3D cell culture system. ConclusionNOTCH4 plays an important role in VM formation in HCC and may provide a novel molecular target for anti-angiogenesis therapy for HCC.

Objective:To identify the risk factors for acute kidney injury (AKI) after non-cardiac surgery.Methods:Medical records of patients who underwent non-cardiac surgery with general anesthesia in our hospital from October 1, 2016 to March 31, 2021 were collected.AKI was diagnosed using the Kidney Disease Improving Global Outcomes definition of AKI.Multi-factor logistic regression analysis was used to screen the risk factors affecting AKI.Generalized linear regression was used to analyze the factors influencing the difference in serum creatinine before and after surgery.Results:A total of 2 214 patients were eventually enrolled, and the incidence of AKI was 5.15%.The results of multi-factor logistic regression analysis showed that preoperative hypertension, American Society of Anesthesiologists Physical Status classification ≥ Ⅲ, intraoperative bleeding >300 ml, emergency surgery, and grade IV surgery were independent risk factors for AKI after non-cardiac surgery ( P<0.05). The results of generalized line regression analysis showed that preoperative hyponatremia, intraoperative bleeding >300 ml, emergency surgery, and duration of anesthesia were positively correlated with increased difference in serum creatinine before and after surgery ( P<0.05). Conclusions:Preoperative hypertension, American Society of Anesthesiologists Physical Status classification ≥ Ⅲ, intraoperative bleeding >300 ml, emergency surgery and grade IV surgery are independent risk factors for AKI after non-cardiac surgery.

Objective:To explore the safety and feasibility of Da Vinci robotic-assisted laparoscopic resection in treatment of liver benign tumors.Methods:The clinical data of 62 patients with liver benign tumors admitted to Fujian Medical University Union Hospital from January 2016 to December 2019 were retrospectively analyzed. All patients were divided into 2 groups: 25 cases undergoing Da Vinci robotic-assisted laparoscopic resection (the robotic group) and 37 cases undergoing conventional laparoscopic resection for liver benign tumors (the laparoscopic group). The operation duration, intraoperative blood loss, postoperative abdominal drainage tube removal time, incidence of postoperative complications, postoperative hospital stay time of both groups were compared.Results:Operations of all 62 patients were successfully completed. The operation time of the robotic group was longer than that of the laparoscopic group [(192±52) min vs. (158±41) min], intraoperative blood loss of the robotic group was less than that of the laparoscopic group [(159±67) ml vs.(213±59) ml], and differences were statistically significant between the two groups (both P < 0.05). The postoperative abdominal drainage tube removal time of the robotic group and the laparoscopic group was (7.0±1.5) d and (7.2±1.3) d, the incidence of postoperative complications was 8.0% (2/25) and 5.4% (2/37), and the postoperative hospital stay time was (7.0±2.4) d and (7.3±2.2) d, respectively; and differences were statistically significant between both groups (all P > 0.05). Conclusion:Da Vinci robotic-assisted laparoscopic resection is a safe and effective operation method in treatment of liver benign tumors with advantages of small wound and less blood loss.

Objective To evaluate the effectiveness of computer aided design (CAD) and three bit printing in the management of orthognathic surgery.Methods A total of 5 cases of patients with jaw deformity were involved in this study;jaw teeth and CT scanning laser scanning hefore surgery,virtual surgery design of 3D reconstruction and fusion data were analyzed,according to the design scheme of double jaw surgery combined with genioplasty;design and 3D printing of maxillary Le Fort Ⅰ osteotomy,genioplasty titanium alloy resin osteotomy and positioning guide,sagittal split ramus osteotomy by 3D printing and plate technology were used in this approach.The postoperative results were compared with the surgical planning by three-dimensional measurement and statistical analysis.Results When the operation guide plate was applied smoothly,the maximum error for maxilla was 1.2 mm (0.3-1.2 mm),and the maximum error for genioplasty was 1.7 mm,(0.5-1.7 mm),and the mean error was less than 1 mm.Follow-up for 12 months showed no adverse reaction.Conclusions Three dimensional printing surgical guide plate can accurately provide the osteotomy information,effectively control the jaw movement,and improve the orthognathic surgery accuracy of patients with partial jaw deformity.

Objective:To identify the pathogenic mutation in a patient with Oguchi disease.Methods:A Japanese patient with Oguchi disease was enrolled in this study, and underwent a comprehensive medical history assessment and multiple ophthalmic examinations, including BCVA, OCT, color fundus photography and full field electroretinogram. Genomic deoxyribonucleic acid (DNA) was extracted from peripheral blood samples for whole exome sequencing. The gene mutation was detected, and the analysis software was used to determine the conservation of the mutation and the possible structural changes.Results:The patient, 71 years old, with consanguineous parents, complained of night blindness since early childhood. BCVA in both eyes was 0.7 and the golden-yellowish reflex appeared in the grey retina. The scotopic 0.01 ERGs showed a extinguished reaction in both eyes. The scotopic 3.0 ERGs showed a "negative" configuration with a significantly reduced a wave and a nearly absent b wave. A homozygous deletion mutation in the SAG gene (c.924delA, p.N309Tfs*12) in this patient was founded by DNA sequencing, which was predicted to generate prematurely truncated SAG protein and result in severe structural change. Homology analysis of the protein sequence indicated that the mutation resulted in an altered amino acid which was evolutionarily highly conserved among different species, strongly suggesting the potential pathogenicity of this homozygous mutation.Conclusion:The mutation c.924delA(309Tfs*12) in SAG cause Oguchi disease in this patient.

Humans ; COVID-19/genetics* ; SARS-CoV-2/genetics* ; Clustered Regularly Interspaced Short Palindromic Repeats/genetics* ; CRISPR-Cas Systems/genetics* ; RNA, Viral/genetics*