0.05). Logistic multiple regression analysis showed T242 allele, body mass index, fasting blood glucose, HbAlc, Homa-IS, systolic blood pressure were risk factors of type 2 diabetic nephropathy. Conclusions p22phox C242T gene polymorphism is associated with diabetic nephropathy in Shanghai people. p22phox subunit T allele mutation is pnobabaly one of predisposing genes of type 2 diabetic nephropathy, and p22phox A640G gene polymorphism is not associated with diabetic nephropathy in Shanghai people. T242 allele, fasting blood glucose, HbAlc, Homa-IS, systolic blood pressure are risk factors of type 2 diabetic nephropathy.

Objective:To study the effect of mindfulness-based training intervention on clinical efficacy in patients with nitrous oxide(laughing gas) addiction.Methods:From June 2019 to June 2020, sixty-six patients with nitrous oxide addiction in Beijing Gaoxin Hospital were selected and randomly divided into experimental group( n=33) and control group( n=33). The control group received Taijiquan training and physical training, while the experimental group added mindfulness-based training intervention on the basis of Taijiquan training and physical training.Symptom checklist 90 (SCL-90) scores and visual analog scales (VAS) craving scores were compared between the two groups at admission and 8 weeks after treatment.SPSS 22.0 software was used for statistical analysis.Independent sample t test and paired sample t test were used to compare the differences between groups and within groups. Results:(1)Before treatment, there were no significant differences in subscale scores of SCL-90 between the two groups except for depression factor((2.45±0.86), (2.03±0.46), t=2.474, P<0.05). After treatment, the subscale scores of somatization((1.38±0.35), (1.68±0.34), t=-3.656, P<0.05), phobic anxiety((1.49±0.37), (1.81±0.30), t=-3.993, P<0.05), paranoid ideation((1.50±0.47), (1.88±0.31), t=-3.898, P<0.05) and psychotism((1.34±0.54), (1.55±0.27), t=-3.094, P<0.05) of SCL-90 in the experimental group were significantly lower than those in the control group.(2)Before treatment, there was no significant difference in VAS craving score between the two groups( t=0.857, P=0.395). After treatment, the score of VAS in the experimental group was significantly lower than that in the control group( t=27.427, P<0.05). Conclusion:Mindfulness training intervention can effectively improve the clinical symptoms of patients with nitrous oxide addiction, which is worthy of clinical application.

The acetabular labrum, a tough fibrocartilaginous structure attached to the periphery of the osseous acetabular rim, plays an important role in maintaining hip stability, pressure balance, and growth.In the developmental dysplasia of the hip(DDH), the abnormal stress on the acetabulum after dislocation or subluxation of the femoral head causes the labrum to become hypertrophy and degeneration, which become the obstacle of the central reduction.However, the treatment of acetabular labrum in DDH is still controversial.This article reviews the anatomical and imaging features of the normal labrum and DDH labrum and its effect on DDH treatment.

Type 2 diabetes often coexists with osteoporosis, leading to a significant increase in mortality in middle-aged and elderly patients, and both place a huge burden on society. There is a "diabetic bone fragility paradox" in type 2 diabetes, a high bone mineral density and high fracture risk phenomenon. In addition, some hypoglycemic drugs can also cause abnormal bone metabolism, patients with type 2 diabetes are more likely to develop osteoporosis. However, the protection of bone in patients with diabetes is often neglected in clinical practice. Even if the diagnosis of osteoporosis is clear, long-term use of anti-osteoporosis drugs is limited due to many side effects, high cost, poor compliance and other reasons. Resistance exercise(RT) has hypoglycemic and bone protection effects and can be promoted as a non-pharmacological strategy for the early prevention and treatment of type 2 diabetes patients with osteoporosis. We reviewed the research progress of RT in the treatment of T2DM with osteoporosis from four aspects: the relationship between T2DM and bone metabolism and the related pathogenesis, the impact of RT on blood glucose and skeletal muscle quality, the mechanism of RT in reducing glucose, preventing and treating osteoporosis, and the formulation of RT protocol.

Objective:Summarize the experience of the medical rescue team at the main landing site of China's manned space mission, analyze the new characteristics of the Shenzhou 12 space station mission, and take corresponding countermeasures and measures to ensure the strong medical rescue guarantee for astronauts.Methods:Search the publications about astronaut medical aid domestic and abroad, summarize the rescue and medical aid experiences from Shenzhou 5 to Shenzhou 11. In consideration of prolonged on-orbit time, Location adjustment of the landing site and the new characteristics of the complex terrain, new targeted strategies were presented.Results:The astronauts flew in orbit for 90 days, and the main landing site and launch site are in the same area. The medical security includes three parts: launch section, running section and return section. Desert rescue model were added. Ten injuries were simulated and each injury first-aid procedure was standardized.Conclusion:After targeted improvement and optimization, the Shenzhou 12 astronauts medical rescue support program ensures the safety of the whole process, all-weather and all-terrain emergency and rear delivery of the astronauts in the new mission environment and complex terrain.

Objective:To investigate the disease incidence of medical rescue teammates during medical security missions in the dry and hot areas of the Gobi Desert, and to explore its related influencing factors and solutions, so as to provide references for the establishment of a health maintenance system for medical rescue teammates in the Gobi Desert in summer.Methods:Fourteen medical rescue teammates during the medical support mission of the Shenzhou-12 spacecraft from May 2021 to June 2021 were selected as the research objects. A questionnaire survey was conducted and the data were analyzed.Results:During the mission, each teammate had suffered one or more kinds of diseases, mainly manifested in upper respiratory tract infection, dermatosis, systemic muscle soreness, diseases of ophthalmology and otorhinolaryngology, digestive system diseases and sleep disorders, with incidences of 20.3%, 20.3%, 18.5%, 18.5%, 12.9%, and 9.2%, respectively. Training or accidental injuries were mainly manifested as hand trauma, foot friction blisters, recurrence of joint synovitis, joint soft tissue injury, and accidental head injury, with incidences of 31.2%, 25%, 75%, 18.7%, and 6.2%, respectively. The recurrence rate was high in patients who previously suffered synovitis. There was a high possibility of secondary injury in patients who were suffered joint soft tissue trauma before.Conclusions:The incidence of certain diseases is high during the medical rescue support mission in the Gobi Desert. During the mission, the teammates should pay good attention to self-protection at all times, carry out targeted prevention and scientific training, and avoid non-combat attrition.

Objective:To study the application of scenario simulation teaching combined with modular training in nursing education of medical rescue in manned space flight.Methods:Twenty nurses from the medical rescue team of Strategic Support Force Characteristic Medical Center were selected as the research objects. The research objects were randomly divided into the scenario simulation combined with practical training group (practical training group, n=10) and traditional teaching group (control group, n=10). Scenario simulation teaching combined with modular training and traditional teaching were used to carry out nursing training. After the training, theoretical assessment, operation assessment and satisfaction survey were organized. Results:The scenario simulation teaching combined with modular training group was significantly better than the traditional training group in theory assessment, operation assessment and satisfaction survey of nursing staff (all P<0.05). Conclusions:Scenario simulation teaching combined with modular training has obvious teaching effect, which can improve the ability and quality of nursing staff, and help to complete the manned space medical rescue mission efficiently.

Objective: To investigate the clinical significance of asymmetric skin folds in the diagnosis of developmental dysplasia of the hip (DDH) in infant. Methods: The clinical data of 3 266 infants aged up to 6 months who were evaluated because of suspicious findings for DDH, hospitalized at Department of Pediatric Orthopaedics, Shengjing Hospital of China Medical University between January 2012 and April 2019 were reviewed retrospectively, including 1 185 boys and 2 081 girls, with a mean age of 2.8 months (ranging from 1 d to 6 months). The referred reasons included regular screening for DDH without suspicious findings [379 cases(11.6%)], clunk of the hip[59 cases(1.8%)], limb-length discrepancy[188 cases (5.8%)], limitation of hip motion or asymmetrical range of motion[58 cases(1.8%)], asymmetric skin folds[2 107 cases(64.5%)], and combined conditions of musculoskeletal disorder[475 cases(14.5%)]. The Graf′s ultrasound method was used to define the hip conditions.A type Ⅰ or Ⅱa hip was graded as normal, and a type Ⅱb or more serious was graded as DDH.The percentages of DDH for various reasons were compared. Results: Among 3 266 patients (6 532 hips), a total of 194 infants(230 hips)were diagnosed as DDH, and the total diagnostic rate was 5.94%, including 31 males and 163 females; there were 109 cases involving in the left, 49 cases in the right, and 36 cases in the bilateral.The DDH diagnosed rate for regular screening was 8.71%(33/379 cases), 6.78%(4/59 cases) for clunk of the hip, 10.34%(6/58 cases) for limitation of hip motion, 14.36%(27/188 cases)for limb-length discrepancy, 4.79%(101/2 107 cases) for asymmetric skin folds, 4.84%(23/475 cases) for combined conditions of musculoskeletal disorder, and the DDH diagnosed rate for asymmetric skin folds was the lowest(χ²=37.14, P<0.05). Conclusions Although asymmetric skin folds is the most common reason for DDH screening in infant up to 6 months, its clinical significance is limited, asymmetric skin folds should not be considered as an independent indication for DDH screening.

Objective:To review and summarize the main problems that have occurred in the history of manned spaceflight worldwide and the experience of the medical rescue support for astronauts at the main landing site since the first manned spaceflight mission of the Shenzhou-5 in China in 2003, focus on the technical status and return characteristics during the construction of the space station since the Shenzhou-12, and formulate a targeted injury treatment plan to ensure the safety of astronauts.Methods:This article summarized the lessons of accidental injuries of astronauts in foreign aerospace history, especially in the space station stage, combined with the experience of medical support of astronauts in manned spaceflight in China, and put forward a series of organizations, plans and treatments according to the mission characteristics of long-term orbits and adjustments of the main landing sites of space station mission spacecraft.Results:On the basis of the original pre-cabin emergency and helicopter ICU comprehensive rescue platform, the emergency procedures were further optimized, and the treatment plans under different complex terrains and the principles of rapid treatment and evacuation of astronauts were formulated.Conclusions:The effective treatment of astronauts returning from the space station in various situations could be ensured by the comprehensive rescue plan for the medical rescue of the space station mission and the construction and organization of the helicopter rescue platform.

Objective:This study aims to analyze the characteristics and basic principles of emergency surgery risks and anesthesia care of medical support at the landing site for China’s taikonauts of the Shenzhou-12, and to summarize China’s experience in medical support at the landing site for manned spaceflight, and ensure supports in special environments such as an emergency return of manned spaceflight.Methods:This study was carried out through literature research on relevant reports on the emergency surgery risks and aids of domestic and foreign astronauts at the landing sites, and summaries of the experience in medical support for taikonauts of spacecrafts from Shenzhou-5 to Shenzhou-11 at the landing sites. At the same time, according to the characteristics of Shenzhou-12 such as the long on-orbit time, the adjustment in the landing area, the optimization of the mission mode, and new search and rescue power, a series of organization, pre-arranged planning, equipment allocation, and effective anesthesia treatment plan were proposed and inspected in practice.Results:Based on the original anesthesia care plan of medical support, the first-aid carrier was adjusted and modified, the first-aid procedure was optimized, a new generation of supraglottic airway opening tool, video laryngoscope, portable ultrasound, and other devices were added, and the anesthesia care plan at the landing site for manned spaceflight was formulated to provide strong support for the medical care of taikonauts that had stayed in the outer space for a long time.Conclusions:Upon the targeted improvement and process optimization, the anesthesia care plan of medical support for taikonauts of Shenzhen-12 in the landing area fully meets the anesthesia requirement of medical support in special environments such as the emergency return of the taikonauts that have stayed in the outer space for a long time under the new orbital altitude.