Background: Peritoneal dialysis (PD) is an ideal method for the treatment of chronic kidney disease.Its survival rate and quality of life depend on the quality of dialysis. The quality of dialysis depends on the compliance of patients with drugs and dialysis treatment, the choice of diet, the detection of complications and the monitoring and management of the disease. Therefore, the self-management of PD patients is particularly important. This study explored the role of peer support in improving the self-management ability of PD patients.Methods: A total of 105 PD patients in a Chinese tertiary hospital were enrolled and divided into a control group (35 cases), a WeChat group (intervention group 1; 35 cases), and a face-to-face group (intervention group 2; 35 cases). During the 6-month follow-up, the control group were given individualized education, and the intervention group was given peer support.Results: After the 6-month intervention, the self-management ability of the intervention group was significantly different from that of the control group (P<0.01). There were significant differences between the WeChat group and the face-to-face group with respect to hemoglobin and blood phosphorus (P<0.05).There were significant differences in prealbumin, hemoglobin, blood phosphorus and calcium levels between the intervention and control groups after 3 months and 6 months of intervention (P<0.01).Conclusions: Peer support can effectively improve the self-management ability and biochemical indicators in PD patients.

Heat shock protein 90 (HSP90) is widely found in brain tissue. HSP90 inhibition has been proven to have neuroprotective effects on ischemic strokes. In order to study the role of HSP90 in traumatic brain injury (TBI), we carried out the present study. A novel inhibitor of the HSP90 protein, 17-dimethylaminoethylamino-17-demethoxygeldanamycin (17-DA), has been investigated for its function on the blood-brain barrier (BBB) damage after traumatic brain injury (TBI) in mouse models. These C57BL/6 mice were used as a TBI model and received 17-DA (0.1 mg/kg/d, intraperitoneally) until the experiment ended. To find out whether 17-DA may protect against TBI in vitro, bEnd.3 cells belonging to mouse brain microvascular endothelium were used. The HSP90 protein expressions were raised after TBI at the pericontusional area, especially at 3 d. Our study suggested that 17-DA-treated mice improved the recovery ability of neurological deficits and decreased brain edema, Evans blue extravasation, and the loss of tight junction proteins (TJPs) post-TBI. 17-DA significantly promoted cell proliferation and alleviated apoptosis by inhibiting the generation of intracellular reactive oxygen species (ROS) to downregulate cleaved caspase-3, matrix metallopeptidase- (MMP-) 2, MMP-9, and P-P65 in bEnd.3 cells after the injury. As a result, we assumed that the HSP90 protein was activated post-TBI, and inhibition of HSP90 protein reduced the disruption of BBB and improved the neurobehavioral scores in a mouse model of TBI through the action of 17-DA, which inhibited ROS generation and regulated MMP-2, MMP-9, NF-κB, and caspase-associated pathways. Thus, blocking HSP90 protein may be a potential therapeutic strategy for TBI.

Objective. This study is aimed at investigating the early diagnosis and efficacy of emergency treatments of nine patients with severe multiple injuries accompanied by traumatic aortic dissection (TAD). Methods. Patients who sustained severe multiple injuries accompanied by TAD following a car accident ( n = 6 ) and falls from a height ( n = 3 ) were treated in the emergency department of our hospital from October 2017 to July 2021. Data of these patients, including seven men and two women (average age, 53 ± 15.2 years; range, 18–83 years) were analysed retrospectively. Upon hospital arrival, the multidisciplinary treatment (MDT) trauma team, composed of doctors and nurses, immediately performed resuscitation following the Green Channel Consultation and Treatment Process for Severe Multiple Injuries. Life-threatening injuries were managed urgently. Blood tests and blood preparation and bedside B-scan ultrasonography and CT were performed. Aortic computed tomography angiography (CTA) was conducted decisively in patients suspected of TAD so that endovascular graft exclusion (EVGE) with the aortic covered stent can be performed promptly, followed by emergency management, second-stage surgery, and intensive care according to the injury control strategy. Results. This study included nine patients suffering from severe multiple injuries accompanied by Stanford type B TAD, with injury severity scores ranging from 35 to 43 points. Six patients underwent EVGE while receiving emergency treatment, whereas two patients who also had intracranial haemorrhage underwent selective EVGE. One case of TAD missed in the emergency department was detected 13 days after hospitalisation; therefore, the patient promptly underwent EVGE. Emergency procedures performed included exploratory laparotomy and splenectomy ( n = 2 ), thoracic closed drainage ( n = 5 ), haemothoracotomy ( n = 3 ), second-stage fracture surgery ( n = 4 ), and tracheotomy ( n = 1 ). Postinjury complications included haemorrhagic shock, coagulation disorders, hyoxaemia, pulmonary infection, renal insufficiency, and hypoproteinaemia; however, all patients recovered after intensive care treatment. Aortic CTA after EVGE revealed the disappearance of the dissection and the resorption of the intermural haematoma. However, varying degrees of stenosis or occlusion were observed in the left subclavian artery. Nine patients with severe multiple injuries were treated satisfactorily by the MDT, without fatalities, and all patients were discharged for rehabilitation. Conclusion. In this study, procedures including resuscitation, urgent aortic CTA for definitive diagnosis, prompt EVGE, emergency injury control surgery, second-stage definitive surgery, intensive care treatment, and rehabilitation were rationally performed by the emergency MDT trauma team. Overall, this continuous and seamless process is a key factor for the successful treatment of patients with severe multiple injuries accompanied by TAD.