A base amount-dependent fluorescence enhancement-based strategy is put forward to determine vascular endothelial growth factor 165 (VEGF165) in human serum by the use of hairpin DNA-silver nanoclusters (hDNA-AgNCs) and oxidized carbon nanoparticles (CNPs). The hDNA-AgNCs aptasensing probe consists of AgNCs-contained hairpin loop (that generates a fluorescence signal), hairpin stem (that makes the structure stable), and the terminal aptamer 1 (that recognizes the target together with aptamer 2). It has been demonstrated that the fluorescence intensity of hDNA-AgNCs is ~ 3-fold stronger than that of single-stranded DNA-AgNCs (ssDNA-AgNCs), and hDNA-AgNCs have a strong dependence of fluorescence enhancement on the base amount in hairpin stem and loop. Upon the addition of oxidized CNPs, the terminal aptamer 1 of hDNA-AgNCs can adsorb onto the surface of oxidized CNPs via π-π stacking, and the fluorescence of hDNA-AgNCs (with excitation/emission maxima at 490/567 nm) is quenched via fluorescence resonance energy transfer (FRET). When aptamer 2 and VEGF165 are subsequently added, aptamer 1, VEGF165, and aptamer 2 reassemble into an intact tertiary structure, and the fluorescence is recovered because hDNA-AgNCs are far away from the surface of oxidized CNPs and the FRET efficiency decreases. Under the optimized conditions, the aptasensing probe can selectively assay VEGF165 with a detection limit of 14 pM. The results provide a label-free and sensitive method to monitor VEGF165 in human serum. Schematic representation of the strong dependence of fluorescence enhancement on base amount in stem and loop of hairpin DNA-silver nanoclusters. The probe can be used to assay vascular endothelial growth factor 165 (VEGF165) and give a judgment whether human serum VEGF165 is at a normal or abnormal level for clinical diagnosis. Cognitive impairments in patients with bipolar disorder (BD) have been associated with reduced functioning. To investigate the association between (1) patient-evaluated cognitive function measured daily using smartphones and stress, quality of life and functioning, respectively, and (2) patient-evaluated cognitive function and objectively measured cognitive function with neuropsychological tests. Data from two randomized controlled trials were combined. Patients with BD (N = 117) and healthy controls (HC) (N = 40) evaluated their cognitive function daily for six to nine months using a smartphone. Patients completed the objective cognition screening tool, the Screen for Cognitive Impairment in Psychiatry and were rated with the Functional Assessment Short Test. Raters were blinded to smartphone data. Participants completed the Perceived Stress Scale and the WHO Quality of Life questionnaires. Data was collected at multiple time points per participant. p-values below 0.0023 were considered statistically spacity suggests that smartphones can provide a valid tool to assess disability in remitted BD. Smartphone-based ratings of cognition could not provide insights into objective cognitive function. A well-fixed cement-bone interface is a crucial factor for acetabular and femoral components in cemented total hip arthroplasty (THA). The aim of the present study was to evaluate the middle-term clinical and radiological results of fixing the acetabular component with an interface bioactive bone cement (IBBC) technique in primary cemented THA. We undertook a retrospective review was undertaken of 193 primary cemented THAs in 174 patients using acetabular components cemented with an IBBC technique and followed for a minimum of 5years (mean 8.3years; range 5-17years). Baseline data, clinical and radiological outcomes were evaluated. Japanese Orthopedic Association hip score and modified Harris hip scores demonstrated significant clinical improvement in all patients (p < 0.001). Radiolucent lines were detected in 15 hips (7.8%) at the first year and 24 hips (12.4%) at the final post-operative follow-up. The Kaplan-Meier survivorship with radiographic loosening as the end point was 97.8% [95% confidence interval (CI) 95.2-100]. With revision of the acetabular component for aseptic loosening as the end point, component survival was 99.0% (95% CI 97.5-100). With revision of the acetabular component for any reason as the end point, component survival was 97.0% (95% CI 93.9-100). Clinical and radiological results of the acetabular component with the IBBC technique in primary cemented THA were excellent. Clinical and radiological results of the acetabular component with the IBBC technique in primary cemented THA were excellent. Management of humerus nonunions with previously failed fixation presents a complex problem. There are multiple revision fixation strategies, of which compression plating is a mainstay. https://www.selleckchem.com/ The aim of this study was to assess the results of open reduction and direct compression plating without the need for autograft or allograft in the setting of revision humerus open reduction internal fixation. This study is a retrospective analysis of 19 patients treated between 2008 and 2017 for humerus nonunions following failed fixation who were treated by a single surgeon using direct compression plating with bone graft substitutes. Patients were treated with neurolysis of the radial nerve, hardware removal, debridement of the nonunion site with shortening osteotomies, compression plating, and augmentation with bone graft substitutes. All patients were followed until radiographic and clinical union. Nineteen patients were identified for the study and 17 had adequate follow-up for final analysis. Humeral union was achi revision surgery necessitating proper informed consent prior to the operation. The use of humeral shortening osteotomy and compression plating without autograft or allograft is a viable option for management of humeral nonunions which avoids the morbidity associated with autograft harvest. The patients with radial nerve palsy after the index procedure are likely to have a transient radial nerve palsy as well after the revision surgery necessitating proper informed consent prior to the operation.