[Study on the changes of cartilage metabolites in patients with knee osteoarthritis before and after fibula osteotomy].

OBJECTIVE: To explore changes of C-terminal cleavage epitope of type Ⅱ collagen 3/4 fragment in cartilage metabolism (Col2-3/4Clong mono or C2C), carboxyl-terminal telopeptide of type Ⅱ collagen (CTX-Ⅱ) and knee joint function before and after osteotomy of fibula in patients with knee osteoarthritis. METHODS: From January 2019 to March 2020, 65 patients with knee osteoarthritis who underwent fibular osteotomy treatment accompanied with medial pain were selected, including 25 males and 40 females, aged from 44 to 70 years old with an average of (56.20±10.05) years old;25 patients were gradeⅠ, 19 patients with gradeⅡ, 17 patients with grade Ⅲ, and 4 patients with grade Ⅳ according to Kellgren-Lawrence grading. The content of CTX-Ⅱ and C2C in knee joint fluid, serum interleukin 1ß ( IL-1ß), tumor necrosis factor-α (TNF-α) before osteotomy and 6 months after osteotomy were detected. Visual analogue scale(VAS) was used to evaluate degree of pain relief, American Knee Society Score (KSS) and Hospital for Special Surgery (HSS) were applied to evaluate recovery of knee joint function. RESULTS: Sixty-five patients were followed up from 6 to 18 months with an average of(12.4±3.6) months. VAS, KSS and HSS score at 6 months after osteotomy were better than that of before osteotomy(P<0.05). Serum IL-1ß, TNF-α and content of CTX-Ⅱand C2C of knee joint fluid at 6 months after osteotomy were lower than those before osteotomy(P<0.05). CONCLUSION: Fibula osteotomy could relieve pain of knee osteoarthritis, maintain balance of joint stress, reduce organism inflammatory response, improve cartilage metabolism, reduce decomposition of articular cartilage, and reduce level of CTX-Ⅱand C2C, which is benefit for regeneration of articular cartilage and promote recovery of knee joint function.

Anxiety and Depression of Nurses in a North West Province in China During the Period of Novel Coronavirus Pneumonia Outbreak.

PURPOSE: To investigate the anxiety and depression levels of frontline clinical nurses working in 14 hospitals in Gansu Province, China, during this period. DESIGN: A cross-sectional survey was conducted online between February 7 and 10, 2020, with a convenience sample of 22,034 nurses working in 14 prefecture and city hospitals in Gansu Province, located in northwest China. METHODS: A self-reported questionnaire with four parts (demographic characteristics, general questions related to novel coronavirus-infected pneumonia, self-rating anxiety scale, and self-rating depression scale) was administered. Descriptive statistics including frequencies, means, and SDs were computed. The associations between anxiety and depression with sociodemographic characteristics, work-related concerns, and impacts were analyzed, followed by multiple stepwise linear regression to identify factors that best predicted the nurses' anxiety and depression levels. FINDINGS: A total of 21,199 questionnaires were checked to be valid, with an effective recovery rate of 96.21%. The mean ± SD age of the respondents was 31.89 ± 7.084 years, and the mean ± SD length of service was 9.40 ± 7.638 years. The majority of the respondents were female (98.6%) and married (73.1%). Some demographic characteristics, related concerns, and impacts of COVID-19 were found to be significantly associated with both anxiety (p < .001) and depression (p < .001). Nurses who needed to take care of children or elderly relatives, took leave from work because they were worried about COVID-19, avoided contact with family and friends, and wanted to obtain more COVID-19-related knowledge had higher levels of both anxiety and depression. CONCLUSIONS: Results show that nurses faced with the COVID-19 outbreak are at risk for experiencing anxiety and depression. Demographic background, psychosocial factors, and work-related factors predicted the psychological responses. The family responsibilities and burdens of women may explain the higher levels of anxiety and depression among nurses with these obligations as compared to those without. On the other hand, nurses who chose not to take leave from work or who did not avoid going to work during this period were less anxious and depressed. CLINICAL RELEVANCE: Professional commitment might be a protective factor for adverse psychological responses. It is pertinent to provide emotional support for nurses and recognize their professional commitment in providing service to people in need.