1.Expression of Nupr1 in Gastric Cancer and its Clinical Significance
Meiyu DING ; Chao QI ; Xiangjun JIANG
Chinese Journal of Gastroenterology 2017;22(8):460-464
Background:The morbidity and mortality of gastric cancer remain high worldwide,and it is urgent to explore new targets for the diagnosis and treatment of gastric cancer. Nuclear protein 1 (Nupr1)has a variety of biological functions, especially in the tumorigenesis and development of the malignancies. Aims:To investigate the expression and clinical significance of Nupr1 in gastric cancer. Methods:Quantitative RT-PCR was used to determine the mRNA expression of Nupr1 in 72 cases of gastric cancerous tissue and the paired paracancerous tissue. Western blotting and immunohisto-chemistry were employed to detect the protein expression and cellular localization of Nupr1. The correlation of Nupr1 with the clinicopathological characteristics of gastric cancer was analyzed. Results:Expressions of Nupr1 mRNA and protein in gastric cancer were both significantly higher than those in paracancerous tissue (P < 0. 05),and their expressions were coincident. Nupr1 protein was expressed mainly in cytoplasm,and the nuclear expression was reduced. Expression of Nupr1 mRNA in gastric cancer was significantly correlated with tumor size,differentiation,pathological type,Bormann's classification,depth of invasion,lymph node and distant metastases and TNM staging (P < 0. 05),and was not correlated with gender,age and site of tumor (P > 0. 05). Conclusions:Nupr1 is overexpressed and correlated with invasion, metastasis and progression of gastric cancer. It can be used as a novel biomarker for early diagnosis and prognosis evaluation,and as a potential target for treatment of gastric cancer.
2.Clinical analysis of neonatal hypoxic-ischemic encephalopathy after intrauterine asphyxia with normal Apgar scores at birth
Xueqing DING ; Meiyu ZHANG ; Mingchang WU
Chinese Journal of Perinatal Medicine 1998;0(03):-
Objective To analyse the associated clinical findings of newborn infants with HIE after intrauterine asphyxia with normal Apgar scores at birth and follow-up the neurologic sequelae. Methods 30 newborn infants admitted for HIE in Jan.to Dec. 2002 were analysed,they had :(1)intra-uterine asphyxia with Apgar scores of 8~10 at birth,(2)with neurological symptoms on the first day after birth,(3)diseases of infection,genetics and metabolism,and deformity were ruled out,(4)with characteristic findings of HIE on cranial ultrasound examinations and CT scans. Results All of 30 newborn infants had signs of depression from the first day after birth,22 infants of them sometimes were irritable.17 cases (56.7%) with mild encephalopathy and 13 cases (43.3%) with moderate encephalopathy,none of severe case,compared with the infants who had HIE with birth asphyxia,there were no statistical difference. Less than 40% cases had elevated BUN and CKMB,hyponatremia,hypocalcemia,hypoglycemia,acidosis,etc The incidence of them were the same as the infants who had HIE with birth asphyxia. The findings of cranial ultrasound examinations were different between the acute and chronic hypoxic injury of intrauterine asphyxia Follow-up 28 infants at the mean age of (11.7?3.8) months. Except 1 case of cerebral palsy,all of them are normal intelligent infants. There were 4 cases of dilated lateral ventricle and 1 case of dilated 3rd ventricle at birth; 6 cases of dilated ventricles found in follow-up and 1 of them had cerebral palsy,all of those infants recovered at 12~19 months of age. Conclusion Newborn infants who had intrauterine asphyxia without birth asphyxia might suffer from HIE and cerebral palsy later. Cranial ultrasound examinations showed some of them had fetal brain damages. Therefore,intensive care of such infants,preventing and treating intrauterine asphyxia could decrease the morbidity of HIE.
3.Pathological Basis of Ovarian Cystic Teratoma and its Differential Diagnosis Using Grey Scale Ultrasonography
Qingwei DING ; Ning SUN ; Shaowen WANG ; Guoying SUN ; Huifang MAO ; Zhengtao ZHU ; Ming LI ; Meiyu WANG
Chinese Journal of Medical Imaging 2010;(1):69-71,74
Purpose To investigate the diagnostic value of gray-scale ultrasound on ovarian cystic teratoma.Materials and Methods 83 patients with primary diagnosis of ovarian cystic teratoma underwent gray-scale ultrasonography. The ultrasonic images were compared with postoperative pathologic results. Results 91 cases of 83 lesions were detected. The ultrasonic features were categorized into 6 types: cystoid, solid-like, intracystic dough sign, intracystic hair-ball, intracytic fat-fluid level, and intracytic cluttering sign. The diagnose accordance rate for each sign was 81.0%, 77.8%, 96.2%, 100% and 70.0% respectively. The diagnose accordance rate of ultrasonic diagnosis compared with pathologic results was 89.0% (81/91), and misdiagnosed rate and rate of missing diagnosis was 11.0% (10/91). Conclusion The ultrasonic features of ovarian cystic mature terotoma were of importance diagnostic value, whereas differentiation with ovarian chocolate cysts and ovarian mucus-cystic adenoma should be made cautiously.
4.Relationship of correction coefficient and measuring position in spectral CT imaging
Liping GAI ; Ailian LIU ; Yijun LIU ; Meiyu SUN ; Jinghong LIU ; Renwang PU ; Minqin SUN ; Xiaodong DING ; Li WANG
Chinese Journal of Tissue Engineering Research 2016;20(31):4677-4686
BACKGROUND:In spectral CT imaging study, the selection of scanning parameters is considered by most researchers, but the effects of measuring position are often overlooked. Actual measurement found that different measurement location had significant impact on the result of the measurement. Through measurement and mathematical model of a large amount of data, we can correct the measurement results of different location. The results with real data alignment are higher. OBJECTIVE:To explore effects of different measuring positions on results in spectral CT imaging, and to optimize correction coefficients. METHODS:GE standard water phantom was applied to orderly obtain 5 combined scanning parameters with 552 groups of data. Size measurement method was divided into two measuring range:ROI1 and ROI2. We selected 10 points to measure CT value, including Center, North, South, West and East. The measurement data of ROI1 and ROI2 were classified and screened based on the same sequence. Mathematical modeling and probability statistics analysis were used to optimize correction coefficient, get calibration function and draw experimental simulation curve. RESULTS AND CONCLUSION:(1) Measuring methods of ROI1 were superior to the ROI2’s on water phantom in spectrum CT. (2) To different scanning sequences, the measuring results were different. To the same scanning sequences, the measurements for different positions on water phantom in spectrum CT had remarkable influence on the measuring results, which varied from points to points. (3) Through setting up mathematical modeling, using method of statistical analysis, we could get the correction function on different measuring positions. (4) Above results confirmed that compared with the theoretical model and the experimental data of spectral CT scanning parameters, the coefficients of position can be adjusted, which can optimize the measuring results.
5. Impact of hypertensive disorder complicating pregnancy on neonatal mortality and major complications in preterm infants
Meiyu WANG ; Xiangyong KONG ; Zhichun FENG ; Fengdan XU ; Hongyan LYU ; Lihong YANG ; Sujing WU ; Rong JU ; Jin WANG ; Li PENG ; Zhankui LI ; Xiaolin ZHAO ; Shujuan ZENG ; Huixian QIU ; Weixi WEN ; Hui WU ; Ying LI ; Nan LI ; Xuefeng ZHANG ; Wenzheng JIA ; Guo GUO ; Weipeng LIU ; Feng WANG ; Gaimei LI ; Fang LIU ; Wei LI ; Xiao-ying ZHAO ; Hongbin CHENG ; Yunbo XU ; Wenchao CHEN ; Huan YIN ; Yanjie DING ; Xiaoliang WANG ; Ruiyan SHAN ; Ping XU ; Meiying HAN ; Chunyan YANG ; Tieqiang CHEN ; Xiaomei TONG ; Shaojun LIU ; Ziyuan LIU
Chinese Journal of Applied Clinical Pediatrics 2018;33(14):1065-1070
Objective:
To investigate the effect of hypertensive disorder complicating pregnancy (HDCP) on the mortality and early complications of premature infants.
Methods:
The general clinical data of preterm infants with gestational age 24-36+ 6 weeks were collected from the cooperative units in the task group from January 1, 2013 to December 31, 2014.According to the severity of HDCP, the infants were divided into 4 groups: HDCP group, preeclampsia group, eclampsia group and non HDCP group, the mortality and major complications of preterm infants were compared, and the influencing factors were analyzed.
Results:
The mortality rate of preterm in the HDCP group was significantly higher than that of non HDCP group, and there was statistical significance (
6.Preclinical and early clinical studies of a novel compound SYHA1813 that efficiently crosses the blood-brain barrier and exhibits potent activity against glioblastoma.
Yingqiang LIU ; Zhengsheng ZHAN ; Zhuang KANG ; Mengyuan LI ; Yongcong LV ; Shenglan LI ; Linjiang TONG ; Fang FENG ; Yan LI ; Mengge ZHANG ; Yaping XUE ; Yi CHEN ; Tao ZHANG ; Peiran SONG ; Yi SU ; Yanyan SHEN ; Yiming SUN ; Xinying YANG ; Yi CHEN ; Shanyan YAO ; Hanyu YANG ; Caixia WANG ; Meiyu GENG ; Wenbin LI ; Wenhu DUAN ; Hua XIE ; Jian DING
Acta Pharmaceutica Sinica B 2023;13(12):4748-4764
Glioblastoma (GBM) is the most common and aggressive malignant brain tumor in adults and is poorly controlled. Previous studies have shown that both macrophages and angiogenesis play significant roles in GBM progression, and co-targeting of CSF1R and VEGFR is likely to be an effective strategy for GBM treatment. Therefore, this study developed a novel and selective inhibitor of CSF1R and VEGFR, SYHA1813, possessing potent antitumor activity against GBM. SYHA1813 inhibited VEGFR and CSF1R kinase activities with high potency and selectivity and thus blocked the cell viability of HUVECs and macrophages and exhibited anti-angiogenetic effects both in vitro and in vivo. SYHA1813 also displayed potent in vivo antitumor activity against GBM in immune-competent and immune-deficient mouse models, including temozolomide (TMZ) insensitive tumors. Notably, SYHA1813 could penetrate the blood-brain barrier (BBB) and prolong the survival time of mice bearing intracranial GBM xenografts. Moreover, SYHA1813 treatment resulted in a synergistic antitumor efficacy in combination with the PD-1 antibody. As a clinical proof of concept, SYHA1813 achieved confirmed responses in patients with recurrent GBM in an ongoing first-in-human phase I trial. The data of this study support the rationale for an ongoing phase I clinical study (ChiCTR2100045380).