Objective:To analyze the effects of the primary location of colorectal cancer on the surgical outcome of liver metastases.Methods:A cross-sectional study was conducted on 178 patients with liver metastases from colorectal cancer admitted to Binzhou Central Hospital from January 2012 to January 2022. According to whether the patients had recurrence after surgery, they were divided into a recurrence group ( n = 88) and a control group ( n = 90). The general and clinical data were compared between the two groups. Logistic multivariate analysis of the factors with statistical significance was further performed to identify the risk factors of postoperative recurrence of liver metastases from colorectal cancer after surgery. The correlation between the primary location of colorectal cancer and each risk factor was analyzed. The recurrence of colorectal cancer was compared anong patients with different primary locations of colorectal cancer at 12 months after surgery. Results:Primary location at the right colon [55.68% (49/88), lymph node metastasis [92.05% (81/88)], D-dimer ≥ 180 μ g/L, albumin < 29 g/L, ineffective/no neoadjuvant chemotherapy [43.18% (33/38)], and high-risk clinical risk score [53.41% (47/88)] were risk factors for postoperative recurrence of liver metastases from colorectal cancer after surgery ( P = 0.024, 0.019, 0.001, 0.028, < 0.001, 0.001). The primary location of colorectal cancer was positively correlated with lymph node metastasis, D-dimer, and clinical risk score ( P = 0.043, 0.046, 0.030), and negatively correlated with albumin and the efficacy of neoadjuvant chemotherapy ( P = 0.004, 0.033). In 178 patients, the recurrence rate of liver metastases from colorectal cancer at 3 months [53.57% (15/70)], 6 months [55.17% (32/70)], and 12 months [55.68% (49/70)] was significantly higher in the right colon compared with the left colon [32.14% (9/40), 24.14% (14/40), 26.14% (23/40) and the rectum [14.29% (4/68), 20.69% (12/68), 18.18% (16/68)] ( χ2= 4.73, 7.85, 6.27, all P < 0.05). Conclusion:Right colon, lymph node metastasis, D-dimer, albumin, neoadjuvant chemotherapy efficacy, and clinical risk score are the risk factors for postoperative recurrence of liver metastases from colorectal cancer. Patients with the primary location at the right colon have a higher postoperative recurrence rate.

Objective To investigate the effect ofbiglycan (BGN) on neural apoptosis in mice with early brain injury (EBI) after subarachnoid hemorrhage (SAH).Methods SAH models were induced by endovascular perforation in young male C57BL/6J mice.(1) Totally,48 mice were randomly divided into sham-operated group,SAH 6 h group,SAH 12 h group,SAH 24 h group,SAH 48 h group,and SAH 72 h group (n=8);the BGN protein and mRNA expressions were detected by Western blotting and real-time quantitative PCR (qRT-PCR).(2) Totally,16 mice were randomly divided into sham-operated group and SAH 48 h group (n=8);immunofluorescent double staining was conducted to explore the BGN expression in the neurons of brain tissues.(3) Totally,24 mice were randomly divided into sham-operated group,sham+control lentivirus group,and sham+BGN lentivirus group (n=8);BGN lentiviral vector and control lentivirus were administered intracerebroventricularly 7 d before sham-operation;qRT-PCR was performed to explore the BGN mRNA expression.(4) Totally,48 mice were randomly divided into sham-operated group,SAH+control lentivirus group,and SAH+BGN lentivirus group (n=16);BGN lentiviral vector and control lentivirus were administered intracerebroventricularly 7 d before SAH;neurological scores were detected by modified Garcia scale and beam balance tests;TUNEL was used to detect the neuronal apoptosis,and Western blotting was performed to explore the expressions of nuclear transcription factor kappa B (NF-κB) and phosphorylated-(p-) NF-κB.Results (1) Mice in the SAH 48 h group had the highest BGN protein and mRNA expressions,which showed statistical differences as compared with the sham-operated group (P＜0.05).(2) A majority of BGN expressions were detected in the neurons 48 h after SAH.(3) The sham+BGN lentivirus group had statistically lower BGN mRNA expression than the sham+control lentivirus group (P＜0.05).(4) As compared with those in the SAH+control lentivirus group,both scores of modified Garcia scale and beam balance tests were significantly higher in SAH+BGN lentivirus group (6.125±1.246 vs.13.000±1.309;1.125±1.126 vs.2.875±0.835),and neural apoptosis ratio and ratio of p-NF-κB/NF-κB were significantly lower in the SAH+BGN lentivirus group (51.950％±11.166％ vs.31.938％±7.705％;1.161±0.156 vs.0.886±0.142,P＜0.05).Conclusion Inhibition of BGN can effectively reduce neuronal apoptosis in mice with EBI after SAH,and attenuate neurological deficits.