1.In vitro Antibacterial Effect by Asi-antidiarrheal Capsule:An Experimental Study
Zhifeng CHENG ; Yingqi ZHANG ; Min GUO ; Goufen QIAO
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To investigate the in vitro antibacterial effect of Asi-antidiarrheal capsule a Chinese herbal compound on hyperthyroid diarrhea.METHODS It was determined by drug dilution method in test tube to determine Asi-antidiarrhea capsule.The compound positive control drug was diphenoxylate co.We made in vitro antibacterial test with 8 kinds of bacteria respectively.RESULTS Asi-antidiarrhea capsule had powerfully bacteriostatic action on Shigella dysenteriae,Staphylococcus aureus and Streptococcus pneumoniae(MIC31.25 mg/L).But diphenoxylate co contrally was less effective on S.aureus,Str.pneumoniae,Str.pyogenes and Sh.dysenteriae(MIC 0.25 mg/L).CONCLUSIONS Asi-antidiarrhea capsule can be used to hyperthyroid diarrhea.Meanwhile,it has powerfully antibacterial effect.It provides evidence of pharmacodynamics for healing infectious diarrhea in the future.
2.Lymphangiogenesis in the perineural micrometastasis of pancreatic adenocarcinoma
Peng CHENG ; Gang JIN ; Xiangui HU ; Ying CHEN ; Rui LIU ; Yijie ZHANG ; Chenghao SHAO ; Yingqi ZHOU
Chinese Journal of Pancreatology 2009;9(6):363-366
Objectives To investigate the role of lymphangiogenesis in the perineural micrometastasis of pancreatic adenocarcinoma. Methods The clinical data of 30 pancreatic adenocarcinoma patients who were admitted from Sep. 2005 to Oct. 2006 for extended radical surgery were collected. The samples including pancreatic cancer, adjacent tissue, lower bile duct, pancreatic tail, the structure surrounding the SMA (peripancreatic nerve plexus) and lymph nodes were collected during operation. They were subjected to conventional pathological examination. The lymphatic capillaries weredetected by double immunohistochemical staining and the lymphatic vessel density ( LVD) was measured. Results Intra-pancreatic and/or peripancreatic neural invasion was observed in 25 patients (83. 3% ) , of which 20 were found to have both the peri-pancreatic and intra-pancreatic neural invasion. The other 5 only had the intrapancreatic neural fiber invasion and there was no single patient with peri-pancreatic neural fiber invasion only. Peri-neural invasion was not significantly associated with patients' age, gender, lymph node metastasis, tumor size and the location (P > 0.05) , but was obviously associated with JPS clinical staging ( P < 0. 05 ). The mean intratumoral LVD was (4.2 ±3.4) per field, which was significantly lower than (11.3 ±6.9) per field of adjacent tissue and (10.8 ±4.4)per field of normal pancreatic tissue(P<0.01). The mean intratumoral LVD between adjacent tissue and normal pancreatic tissue was not statistically different. Lymphatic vessel invasion was observed in non-malignant tissues in 18 patients, and there was a distribution correlation between lymphatic vessel invasion and extra-pancreatic neural plexus invasion (P<0.05). Conclusions The incidence of peri-neural invasion was high, peri-neural invasion was associated with JPS clinical staging and lymphatic vessel invasion, which suggested the possibility of the cancer spreading by peritumoral lymphangiogenesis route into the peri-SMA neural plexuses.
3.Incidence and Step-wise Therapy Management for Appropriate Shocks of Implantable Cardioverter Defibrillator in Heart Failure Patients
Fei XU ; Pinrui LI ; Cheng GOU ; Mingjie DENG ; Yingqi WANG ; Jinqiu LIU
Chinese Circulation Journal 2017;32(6):589-593
Objective: To study the incidence of ventricular arrhythmia (VT) in heart failure (HF) patients after cardiac resynchronization therapy (CRT-D) and identify the influencing factors for VT occurrence, to explore the impact of CRT-D shocks on mortality and the management of appropriate shocks. Methods: A total of 42 patients with successfully implanted CRT-D in our hospital from 2009-01 to 2015-04 were studied. There were 2 groups of patients: Ischemic cardiomyopathy group,n=12 including 8 patients for primary prevention and 4 for secondary prevention; Non-ischemic cardiomyopathy group,n=30 including 19 patients for primary prevention and 11 for secondary prevention. The patients with appropriate shocks received four step-wise therapy as drug, equipment parameter adjustments, revascularization and radiofrequency ablation (RA). Results: The patients in Ischemic cardiomyopathy group were followed-up for (38.1±24.0) months, 7 patients suffered from post-operative VT, 5 patients had CRT-D appropriate shocks. The patients in Non-ischemic cardiomyopathy group were followed-up for (27.5±17.8) months, 11 patients suffered from post-operative VT, 10 patients had CRT-D appropriate shocks. The occurrence rates of post-operative VT and CRT-D appropriate shocks were similar between 2 groups,P>0.05; the success rate for ATP treating VT was higher in Ischemic cardiomyopathy group (69% vs 55%),P<0.05. Cox regression analysis indicated that CRT-D as secondary prevention was the independent influencing factor for VT occurrence,P=0.001. During follow-up period, 9 patients with shocks died; the mortality in patients with shocks was higher than those without shocks (43% vs 0%),P<0.05. With four step-wise therapy, 80% patients in Ischemic cardiomyopathy group had no more shocks; with three step-wise therapy as drug, equipment parameter adjustments and RA, 90% patients in Non-ischemic cardiomyopathy group had no more shocks, 10% patients had reduced shocks. Conclusion: CRT-D as secondary prevention was the independent impact factor for post-operative VT occurrence, no matter appropriate or inappropriate shocks would elevate the risk of death in HF patients. Step-wise therapy was important to reduce appropriate shocks.
4.The research progress of the mechanism and treatment for radiation-induced cognitive dysfunction
Mengmeng WANG ; Yingqi ZHOU ; Yi HAN ; Ying CHENG
Chinese Journal of Neurology 2021;54(7):718-722
Radiotherapy is still a major part of the program about treating various head and neck cancers. While improving the survival rate of head and neck cancer patients, radiotherapy can cause the decline of learning, memory, orientation and other functions, seriously, even lead to dementia, namely radiation induced cognitive dysfunction (RICD), which has become a critical factor affecting the quality of life for patients. Because of occult onset and unclear pathogenesis, so far there is few effective preventive and therapeutic tools for RICD. In this paper, the latest research progress on the pathogenesis and treatments of RICD is summarized.
5.The Role of Signal Transducer and Activator of Transcription 3 in Bone Homeostasis and Load-Driven Bone Remodeling
Yiwen CUI ; Zilu WANG ; Weiqi LI ; Yingqi CHENG ; Zhiyun YE ; Xinyi GONG ; Siru ZHOU ; Yiling YANG ; Lingyong JIANG
Journal of Medical Biomechanics 2021;36(5):E818-E823
Bone homeostasis is a relative balance between bone formation and resorption. Signal transducer and activator of transcription 3 (STAT3), which is closely related to bone homeostasis, takes part in multiple intracellular and extracellular signal pathways. STAT3 participates in the process of osteoblast differentiation regulated by several factors. It can also maintain bone homeostasis by regulating the recruitment, differentiation and activation of osteoclasts. In addition, STAT3 is involved in the interaction between osteoblasts and osteoclasts. Patients with STAT3 mutations can have several inherited bone metabolism diseases. Furthermore, STAT3 plays a critical role in load-driven bone remodeling. Mechanical stimulation promotes osteoblast differentiation and bone formation through activating or enhancing STAT3 expression during bone remodeling process. This review summarizes the participation of STAT3 in maintaining bone homeostasis together with its possible mechanisms and discusses the connection between STAT3 and mechanical stimulation in bone remodeling, so as to provide a potential pharmacological target for the treatment of bone diseases.