PURPOSE: To screen laboratory markers with predictive value in early spinal surgical site infections (SSI) that are diagnosed within 30 days postoperatively. METHODS: Patients who underwent surgical treatment for internal spinal fixation between March 2022 and March 2023 in our hospital were retrospectively studied. The inclusion criteria were aged >18 years, undergoing internal fixation surgery, complete medical records with >30 days of postoperative follow-up, diagnosis was made within 30 days postoperatively, and an informed consent form was obtained. The exclusion criteria were abnormal white blood cell count or neutrophil percentage in the preoperative blood routine and combined diseases that may affect the C-reactive protein (CRP) or procalcitonin (PCT) values, including lower respiratory tract infection, renal insufficiency, and liver disease. We collected patients' personal information, surgical information, and blood laboratory data, including CRP, PCT, lymphocyte-neutrophil ratio, platelet-neutrophil ratio, and routine blood tests on preoperative and postoperative days 3, 5, and 7, from these patients. These data were statistically analyzed to determine which laboratory markers were statistically significant. The diagnostic value and optimal diagnostic threshold of these laboratory markers were further determined by receiver operating characteristic curve analysis. RESULTS: A total of 106 patients were enrolled in this study, of whom 8 patients were diagnosed with early SSI. A total of 4 laboratory markers were screened, namely, CRP on postoperative day 7 (optimal diagnostic threshold of ≥64.1 mg/L, sensitivity of 100%, specificity of 76.5%, area under the curve (AUC) of 0.908), PCT on postoperative day 7 (optimal diagnostic threshold of ≥0.2 ng/mL, sensitivity of 87.5%, specificity of 94.1%, AUC of 0.967), lymphocyte count on postoperative day 5 (optimal diagnostic threshold of ≤0.67 × 10⁹/L, sensitivity of 50%, specificity of 95.9%, AUC of 0.760), and lymphocyte count on postoperative day 7 (optimal diagnostic threshold of ≤1.32 × 10⁹/L, sensitivity of 87.5%, specificity of 55.1%, AUC of 0.721). CONCLUSION We concluded that CRP and PCT levels on postoperative day 7 and lymphocyte counts on postoperative days 5 and 7 are useful markers in screening for early spinal SSI.
Humans ; Retrospective Studies ; Male ; Female ; Biomarkers/blood* ; Middle Aged ; C-Reactive Protein/analysis* ; Surgical Wound Infection/blood* ; Procalcitonin/blood* ; Adult ; Aged ; Postoperative Period ; ROC Curve ; Predictive Value of Tests ; Spine/surgery*

Objective To investigate the correlation between Gab2 expression and platinum drugs chemotherapy resistance by detecting the expression of Gab2 in ovarian cancer.Methods Immunohistochemical and Western blotting techniques were used to detect the expression of Gab2 in 107 specimens of serous ovarian tumor tissue and 12 specimens of normal ovarian tissues resected during bladder cancer radical operation in the department of gynaecology of our hospital from January 2011 to June 2015.The correlation between Gab2 expression with clinical stage and effect of combined chemotherapy based on platinum drugs was analyzed.Results The Gab2 expression level in ovarian cancer tissue was significantly higher than that in normal ovarian tissue,moreover had a relation with the FIGO clinical stage,the expression level of Gab2 increased with the increase of clinical stage,the difference was statistically significant (P<0.05);61 cases were sensitive to chemotherapy,46 cases were resistant to chemotherapy,the Gab2 expression level in the patients with chemotherapy resistance was significantly higher than that in the patients with chemotherapy sensitivity,the difference was statistically significant (P<0.05).Conclusion Gab2 may become one of effective indexes for predicting platinum drugs chemotherapy sensitivity.

One of the most important characteristics of adult liver is its regenerative ability to maintain its original mass and function after injury. With remarkable self-replication ability, hepatocytes play a critical role in liver regeneration. When there is a restriction in the proliferation capacity and/ or a massive loss of mature hepatocytes,other cells in liver can contribute to liver regeneration in different ways. Deep study on the effects and mechanisms of various hepatic cells’contribution to liver regeneration is helpful for increasing the understanding about liver regeneration and providing new insights for diagnosis and management of various advanced liver diseases.