The RET protein encoded by RET proto-oncogene is a receptor tyrosine kinase that serves as a potential therapeutic target in non-small cell lung cancer (NSCLC) . In NSCLC, the incidence of RET fusions variants ranges from 1%-2% and is more common in younger, non-smoking patients. Traditional chemotherapy, immunotherapy, and multitarget kinase inhibitors have shown limited efficacy in treating RET fusion-positive NSCLC patients. However, selective RET inhibitors, such as selpercatinib and pralsetinib, have significantly improved the prognosis of those patients. The treatment strategy following resistance to selective RET inhibitors is a future research direction.

Objective:To investigate the correlation between eosinophil count and short-term outcomes of patients with acute ischemic stroke.Methods:Patients with acute ischemic stroke treated in Fuyang People's Hospital from June 2017 to June 2019 were enrolled retrospectively. The demographic and baseline clinical data were collected. The modified Rankin Scale was used to evaluate the short-term clinical outcome at the time of discharge or 14 d after onset. 0-2 was defined as good outcome, and >2 was defined as poor outcome. Multivariate logistic regression analysis was used to determine the independent influencing factors of poor short-term outcome. Receiver operating characteristic (ROC) curve was used to evaluate the predictive value of eosinophil count for poor short-term outcome. Results:A total of 300 patients with acute ischemic stroke were enrolled, including 187 males (62.3%) and 113 females (37.7%); their age was 63.62±12.14 years; baseline National Institutes of Health Stroke Scale (NIHSS) score was 5.48±4.85. Two hundred and twenty-eight patients (76.0%) had a good outcome and 72 (24.0%) had a poor outcome. Univariate analysis showed that age, hypertension, baseline NIHSS score, C-reactive protein, atrial fibrillation, and neutrophil count of the poor outcome group were significantly higher than those of the good outcome group, while male, smoking, eosinophil count and percentage of eosinophils were significantly lower than those of the good outcome group (all P<0.05). Multivariate logistic regression analysis showed that baseline NIHSS score (odds ratio [ OR] 1.726, 95% confidence interval [ CI] 1.400-2.128; P<0.001), hypertension ( OR 3.744, 95% CI 1.227-11.426; P=0.020) and eosinophil count ( OR 0.287, 95% CI 0.102-0.616; P=0.043) were the independent influencing factors for the poor short-term outcome. ROC curve analysis showed that the area under the curve of eosinophil count for predicting the poor short-term outcome was 0.717 (95% CI 0.642-0.792), the best cutoff value was 0.075×10 9/L, and its sensitivity and specificity for predicting the poor short-term outcome were 88.6% and 51.4% respectively. Conclusion:The decreased eosinophil count had a certain predictive value for the poor short-term clinical outcome of patients with acute ischemic stroke.

After receiving radical resection of primary rectal cancer,about 4％ to 30％ patients would occur local recurrence.Diagnosis of local recurrence relies on postoperative follow-up,physical examination,tumor markers and imageological examination.For the local recurrent patients,conservative therapeutic regimen had been popular in the past days with poor prognosis and quality of life.Nowadays multimodality treatment with radical resurgery combined with chemoradiotherapy and IORT has been taking the main part in the management of local recurrence.The choice of surgery depends on the site of recurrence and invasion situation inside the pelvic cavity.The aim of the radical reoperation is R0 resection because it leads to an optimistic prognosis.Previously irradiated patients are relatively safe after receiving median-dose reirradiation.For the cases whose recurrence are unavailable for radical resection,palliative operation and chemoradiotherapy may be the wise choice to relieve their symptoms and improve the quality of life.

The PIK3CA gene codes p100α,the catalytic subunit of phosphatidylinositol 3-kinase (PI3K) and is involved in the initiating the PI3K/AKT pathway.PIK3CA plays its biological roles through.downstream PI3K pathway. PIK3CA gene mutants can be detected in many kinds of tumors. The mutant PIK3CA gene can abnormally activate PI3K pathway,leading to the abnormal cell cycle,decreased cell adhesion,down regulated apoptosis and neovascularization,and then promotes tumor genesis and development.Recent researches have found that mutant PIK3CA gene is closely correlated with the genesis,development,differentiation,metastasis and drug resistance of colorectal cancer.Research of PIK3CA in colorectal cancer may provide significant evidence for the early diagnosis,gene screen,therapeutic regimen making,recurrence and follow up.