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Understanding the mechanisms by which infection with SARS-CoV-2 leads to acute respiratory distress syndrome (ARDS) is of significant clinical interest given the mortality associated with severe and critical coronavirus induced disease 2019 (COVID-19). Neutrophils play a key role in the lung injury characteristic of non-COVID-19 ARDS, but a relative paucity of these cells is observed at post-mortem in lung tissue of patients who succumb to infection with SARS-CoV-2. With emerging evidence of a dysregulated innate immune response in COVID-19, we undertook a functional proteomic survey of circulating neutrophil populations, comparing patients with COVID-19 ARDS, non-COVID-19 ARDS, moderate COVID-19, and healthy controls. We observe that expansion of the circulating neutrophil compartment and the presence of activated low and normal density mature and immature neutrophil populations occurs in both COVID-19 and non-COVID-19 ARDS. In contrast, release of neutrophil granule proteins, neutrophil activation of the clotting cascade and formation of neutrophil platelet aggregates is significantly increased in COVID-19 ARDS. Importantly, activation of components of the neutrophil type I IFN responses is specific to infection with SARS-CoV-2 and linked to metabolic rewiring. Together this work highlights how differential activation of circulating neutrophil populations may contribute to the pathogenesis of ARDS, identifying processes that are specific to COVID-19 ARDS.
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Objective To explore the life quality of postoperative patients after a hypertensive cerebral hem-orrhage in the basal ganglia and the factors influencing it, so as to provide evidence for improving the life quality of such patients. Methods A total of 128 patients were studied retrospectively. Their gender, age, occupation, mari-tal status, education level, place of residence and family size were tabulated, as well as whether or not they were liv-ing with their children, smoking or drinking alcohol. Their household income was recorded along with their clinical condition during surgery ( midline shift, blood loss, operative time, whether a hernia occurred, consciousness, and whether bleeding broke into the ventricles. The SF-36 health measurement scale was used to evaluate the patients′life quality, and the factors influencing it were analyzed. Results Univariate analysis showed that: ( 1) Their physio-logical functioning ( PF) and global health ( GH) were mainly affected by age, marital status, family size, midline shift, quantity of cerebral hemorrhage, occurrence of herniation, consciousness and whether the hemorrhage broke in-to the ventricles. (2) Their physiological role (RP) was influenced by marital status, education background, household monthly income, midline shift, consciousness and whether the hemorrhage broke into the ventricles. (3) Pain (BP) was mainly affected by marital status and family size. (4) Social functioning (SF) was closely related to marital status, family size, consciousness and whether hemorrhage broke into the ventricles. (5) Their mental health (MH) was main-ly affected by the amount of bleeding, whether they were living with their children, the operation′s duration and whether the hemorrhage broke into the ventricles. (6) Their emotions (RE) were influenced by their consciousness and whether bleeding broke into the ventricles. (7) Their vitality (VT) was affected by their marital status, smoking, consciousness and whether the bleeding broke into the ventricles. Multivariate analysis showed that whether the hemorrhage broke into the ventricles was the most influential factor. Family size was also influential. Conclusions Age, number of family members, whether they are living with their children, and whether hemorrhage broke into the ventricles are all influen-tial in predicting the life quality of survivors of hypertensive cerebral hemorrhage in the basal ganglia.
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Objective To compare the therapeutic effect between three cannulated screws and proximal femoral locking plate in treatment of femoral neck fracture.Methods A total of 75 patients were included,the three cannulated screws group contained 31 patients,and the proximal femoral locking plate group contained 44 patients.The clinical healing time,hip function score at last follow-up and postoperative complication were compared.Results All patients were followed up for 13-18 (15.3 ± 3.2) months.The excellent and good rate of proximal femoral locking plate group was 95.5％ (42/44),and three cannulated screws group was 83.9％(26/31),there was no statistical difference between the two groups (P ＞ 0.05).The clinical healing time of fracture and hip function score at last follow-up in proximal femoral locking plate group were significantly better than those in three cannulated screws group [(14.6 ± 1.7) weeks vs.(18.1 ± 4.9) weeks,(90.9 ± 3.5) scores vs.(82.3 ± 8.3) scores],there were statistical differences between the two groups (P ＜ 0.05).Conclusions Proximal femoral locking plate provides short clinical healing time of fracture,stable fixation,good biomechanical properties and a low rate of postoperative complication in treatment of femoral neck fracture.It is one of the ideal methods in treatment of femoral neck fracture.
