The mechanisms underlying retinal photodamage are multifaceted,encompassing oxidative stress,calcium overload,rhodopsin-mediated injury,lipofuscin accumulation,glial cell activation,inflammatory response,DNA fragmen-tation,etc.Currently,multiple detection methods are available to evaluate retinal photodamage,encompassing electro-physiological functional assessment,morphological analysis,apoptotic cell detection,immunofluorescence labeling,and so on.This review focuses on the research progress on both the mechanisms and detection methods of retinal photodamage.

The mechanisms underlying retinal photodamage are multifaceted,encompassing oxidative stress,calcium overload,rhodopsin-mediated injury,lipofuscin accumulation,glial cell activation,inflammatory response,DNA fragmen-tation,etc.Currently,multiple detection methods are available to evaluate retinal photodamage,encompassing electro-physiological functional assessment,morphological analysis,apoptotic cell detection,immunofluorescence labeling,and so on.This review focuses on the research progress on both the mechanisms and detection methods of retinal photodamage.

Objective:To survey the health literacy and related factors of family caregivers of patients with chronic diseases in Beijing.Methods:A survey was conducted from September to November 2018, among 1 350 family caregivers of patients with chronic diseases selected by stratified random sampling from 6 districts of Beijing. A self-filling questionnaire was used for the survey, which consisted of the basic information and health literacy of family caregivers. Health literacy included three parts: daily living habits, basic knowledge (knowledge of prevention and management of behavioral risk factors, knowledge related to chronic diseases and knowledge related to first aid) and chronic disease-related skills.Results:A total of 1 268 valid questionnaires were collected with a recovery rate of questionnaires was 93.9%. The median age of 1 268 family caregivers was 62 years (23-86) and 75.7% (960/1 268) were females. In terms of daily habits, smokers and drinkers accounted for 11.3% (143/1 268) and 21.5% (272/1 268) respectively; 82.7% (1 049/1 268) caregivers exercised regularly accounted, of whom 72.5% (761/1 049) exercised at least 4 times a week; 28.9% (366/1 268) caregivers had habit of light diet. In terms of basic knowledge of health literacy, 12.9% (163/1 268) of family caregivers mastered the basic knowledge (≥80% total score); family caregivers who were able to measure blood pressure, blood sugar, pulse, coping with hypoglycemia, cardiopulmonary resuscitation and dialing the emergency number correctly accounted for 27.4% (347/1 268), 18.1% (230/1 268), 15.1% (191/1 268), 15.7% (199/1 268), 6.0% (76/1 268) and 33.8% (429/1 268), respectively. For the six chronic disease-related skills, 23.7% (301/1 268) were able to call emergency number correctly and only 2.6% (33/1 268) were able to perform CPR. There were significant differences in the knowledge of behavioral risk factors ( χ 2=3.88, P=0.017), chronic disease related knowledge ( χ2=7.40, P=0.025), first-aid related knowledge ( χ2=12.04, P=0.002) and overall basic knowledge ( χ2=13.56, P=0.001) among family caregivers with different educational levels. There were significant differences in the knowledge of chronic diseases among family caregivers in different occupations ( χ2=8.78, P=0.012). Conclusion:The health literacy level of family caregivers of patients with chronic diseases in Beijing needs to be further improved, and there are differences in the health literacy of family caregivers with different educational qualifications and occupations.

Objective:To survey the training needs for chronic diseases among family health care workers in Beijing.Methods:A questionnaire survey on training needs for chronic disease was conducted from September to November 2018 among 820 family health care workers from 15 community health service centers in Beijing selected by stratified random sampling. The questionnaire consisted of demographic information and training needs related to chronic diseases. The training needs included: the knowledge and skills related to chronic diseases: the types of chronic diseases expected to learn, the basic knowledge of chronic diseases (7 items), preventive health care knowledge (7 items), nursing and rehabilitation skills (9 items); the duration, frequency, method, time and location of training arrangement.Results:The survey showed that chronic disease that family health care workers most wanted to learn was hypertension (90.3%, 717/794); among the basic knowledge of chronic diseases, the highest need was disease risk factor (65.5%, 520/794); among the knowledge of preventive health care, the highest need was home safety protection (87.3%, 693/794); among nursing and rehabilitation skills, the highest need was blood glucose measurement (83.1%, 660/794). The female respondents had higher training need for basic knowledge of chronic diseases than males ( Z=2.51, P=0.012). There were significant differences in the needs for preventive health care knowledge among respondents of different gender ( Z=2.72, P=0.007), occupation ( H=15.02, P=0.001) and educational level ( H=12.01, P=0.002). Respondents with different age ( H=6.49, P=0.039), occupation ( H=52.93, P<0.001) and educational level ( H=9.56, P=0.008)) had different needs for nursing and rehabilitation skills. Among the respondents, 58.2% (462/794) indicated that duration of each course should be 30-59 min, 34.0% (270/794) wanted to participate in the training once a month, 53.1% (422/794) wanted to participate in the training in the form of large class, 39.2% (311/794) were willing to participate in the training on working days and 48.7% (387/794) wanted to be trained in community health service institutions. Conclusions:There are diverse training needs of family health care workers. Attention should be paid to the implementation of need-oriented training. It is crucial to promote the motivation of family health care workers to participate in the training, which can improve the training effect and facilitate their role in family health management.

Objective:To provide references for standardizing the post-operative aeromedical assessment of heart valve disease of flying personnel by analyzing the pathogenesis characteristics and treatment.Methods:The case data of flying personnel with heart valve disease hospitalized in Air Force Medical Center from November of 2010 to December of 2021 were collected, which was called the clinical group; the relevant cases of heart valve disease in domestic flying personnel reported in the literature were retrieved, which was called the literature group. The retrospective study was carried out and the data was analyzed according to the aircraft type, lesion location, treatment method and identification results.Results:There were 20 cases in the clinical group. According to the number of detected cases, the valve positions order was the aortic valve (12 cases), the mitral valve (7 cases), the tricuspid valve (4 cases, all concomitant), and the pulmonary valve (1 case). The literature group had 11 cases, mainly were aortic valve disease (10 cases) and tricuspid valve (1 case). Most of these aortic valve lesions were based on the pathology of bicuspid aortic valve (BAV). Among the cases of aortic valve disease, 12 cases were flight-qualified, 1 case was restricted flight, 1 case of fighter aircraft was transferred to fly transporter, 3 cases were temporary unqualified for flight, 3 cases were unqualified for flight, and 2 cases were waivered. Among the cases of mitral valve disease, 3 cases were flight-qualified, 4 cases were temporary unqualified for flight, 1 case of tricuspid valve and 1 case of pulmonary valve were qualified for flight.Conclusions:The lesion site of valve is the main factor influencing the aeromedical assessment result. The aortic valve is the most common site of valve disease among flying personnel, and BAV is the most common pathologic type. It should be strengthened physical examination identification and prevention.

Objective:To provide references for standardizing the post-operative aeromedical assessment of heart valve disease of flying personnel by analyzing the pathogenesis characteristics and treatment.Methods:The case data of flying personnel with heart valve disease hospitalized in Air Force Medical Center from November of 2010 to December of 2021 were collected, which was called the clinical group; the relevant cases of heart valve disease in domestic flying personnel reported in the literature were retrieved, which was called the literature group. The retrospective study was carried out and the data was analyzed according to the aircraft type, lesion location, treatment method and identification results.Results:There were 20 cases in the clinical group. According to the number of detected cases, the valve positions order was the aortic valve (12 cases), the mitral valve (7 cases), the tricuspid valve (4 cases, all concomitant), and the pulmonary valve (1 case). The literature group had 11 cases, mainly were aortic valve disease (10 cases) and tricuspid valve (1 case). Most of these aortic valve lesions were based on the pathology of bicuspid aortic valve (BAV). Among the cases of aortic valve disease, 12 cases were flight-qualified, 1 case was restricted flight, 1 case of fighter aircraft was transferred to fly transporter, 3 cases were temporary unqualified for flight, 3 cases were unqualified for flight, and 2 cases were waivered. Among the cases of mitral valve disease, 3 cases were flight-qualified, 4 cases were temporary unqualified for flight, 1 case of tricuspid valve and 1 case of pulmonary valve were qualified for flight.Conclusions:The lesion site of valve is the main factor influencing the aeromedical assessment result. The aortic valve is the most common site of valve disease among flying personnel, and BAV is the most common pathologic type. It should be strengthened physical examination identification and prevention.

Preeclampsia (PE) is a pregnancy-specific, multi-system disorder and the leading cause of maternal and perinatal morbidity and mortality in obstetrics worldwide. Excessive vasoconstriction and dysregulated coagulation function are closely associated with PE. Heat shock protein 20 (HSP20) is ubiquitously expressed under normal physiological conditions and has important roles in vascular dilatation and suppression of platelet aggregation. However, the role of HSP20 in the pathogenesis of PE remains unclear. In this study, we collected chorionic plate resistance arteries (CPAs) and serum from 118 healthy pregnant women and 80 women with PE and detected the levels of HSP20 and its phosphorylated form. Both HSP20 and phosphorylated HSP20 were downregulated in CPAs from women with PE. Comparison of the vasodilative ability of CPAs from the two groups showed impaired relaxation responses to acetyl choline in preeclamptic vessels. In addition to the reduced HSP20 in serum from women with PE, the platelet distribution width and mean platelet volume were also decreased, and the activated partial thromboplastin time and thromboplastin time were elevated.With regard to the vital roles of HSP20 in mediating vasorelaxation and coagulation function, the decreased HSP20 might contribute to the pathogenesis of PE.
Adult ; Case-Control Studies ; Chorion ; blood supply ; Female ; HSP20 Heat-Shock Proteins ; metabolism ; Humans ; Phosphorylation ; Placenta ; blood supply ; Platelet Function Tests ; Pre-Eclampsia ; metabolism ; Pregnancy ; Vasoconstriction ; Vasodilation