1.Discussion on routine maintenance for HIS in General Hospital of P.D.S.Coal Group
Wenjie ZHOU ; Ketao LIU ; Fengzhi WANG
Chinese Medical Equipment Journal 1993;0(06):-
This paper analyses the 9-year opeation experience and daily records of HIS in the General Hospital of Pingdingshan Coal Group.HIS plays an irreplaceable role in hospital operation management from hardware,software to management coordination.At the same time,this article also expounds the install ation process,the new features and the benefits of the new system.
2.Propofol relaxes mesenteric arteriole via gap junction
Huijuan WAN ; Yanhui LIU ; Aimei ZHANG ; Haichao ZHANG ; Ketao MA ; Junqiang SI ; Li LI
The Journal of Clinical Anesthesiology 2016;32(7):692-695
Objective To investigate the effects of propofol on mesenteric artery in SD rats and to observe whether the effect of propofol on the mesenteric artery relaxation is related to the gap. Methods Pressure myograph was used to examine the effect of 18β-GA and 2-APB on the relaxation induced by propofol 1×10 -7 ,3×10 -7 ,1×10 -6 ,3×10 -6 ,1 ×10 -5 ,3 ×10 -5 ,1 ×10 -4 and 3 ×10 -4 mol/L in acutely separated mesenteric arterioles of SD rat.Results The diameter of mesenteric arteri-oles were increased from (208.6±13.4)to (213.5±13.6),(21 9.7±13.2),(226.4±12.5),(234.9 ±12.3),(245.5±13.0),(267.4±1 5.2),(336.2±18.3)and (385.9 ±14.2)μm after application of 1×10 -7 ,3×10 -7 ,1 × 10 -6 ,3 × 10 -6 ,1 × 10 -5 ,3 × 10 -5 ,1 × 10 -4 and 3 × 10 -4 mol/L propofol,re-spectively.Propofol induced dilation of the rat mesenteric arterioles in a concentration-dependent man-ner (P < 0.01 ).After pretreatment with 18β-GA and 2-APB,1 × 10 -4 mol/L propofol induced dilation was absolutely decreased (P <0.01).Conclusion These results suggest that propofol relaxes mesenteric arterioles via gap junction.
3.Inhibitive effect of hypoxia on vasoconstriction of phenylephrine in mesenteric arterioles of guinea pig
Huan LIU ; Xiang MA ; Yanping WANG ; Zhenpu TIAN ; He ZHU ; Xinzhi LI ; Li LI ; Junqiang SI ; Ketao MA
The Journal of Practical Medicine 2015;(6):894-897
Objective To investigate the effects and mechanisms of hypoxia on the contraction of mesen-teric arteries induced by phenylephrine (PE) in guinea pig. Methods Pressure myograph system was used to study the effects of 20, 40 and 60 min hypoxia (mixed with 95% CO2 and 5% O2) on the constriction induced by PE in acutely separated mesenteric artery (300 ~ 400 μm) of guinea pig. Results PE (0.1 ~ 100 μmol/L) caused the contractions of the mesenteric arteries in guinea pig in a concentration-dependent way . Hypoxia de creased the pH value of perfusion fluid from 7.4 to 6.3. Hypoxia significantly inhibited PE-induced vasocon-striction, and the inhibition was hard to recover after reoxygenation. Hypoxia inhibited PE-induced vasoconstric-tion in a time-dependent way , with the inhibition rate reduced in the sequence of inhibition duration of 60 , 40 and 20 min. When its value was decreased to 6.3 , the perfusion fluid even inhibited PE-induced vasoconstric tion. Conclusion Hypoxia can inhibit PE-induced vasoconstriction in the mesenteric arteries of guinea pig in a time-dependent way. The mechanism may have something to do with the change of pH.
4. A novel surgical technique for neck neoplasms: endoscope-assisted resection of benign tumors via a small concealed incision
Liang SHI ; Xiaobin SONG ; Ketao WANG ; Chao LIU ; Wanye TAN ; Yong WANG
Chinese Journal of Stomatology 2020;55(2):115-118
Objective:
To introduce a new surgical procedure for the treatment of neck benign tumors by endoscopic techniques.
Methods:
Seventeen patients with neck benign tumor underwent surgery by endoscope through a concealed incision in Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University from January 2018 to August 2019 were analyzed, which included 3 cases of tumor in the submental area, 2 cases in submandibular region, 9 cases in lower pole region of parotid gland, 1 case in superior region of sternocleidomastoid muscle, 1 case in central region of sternocleidomastoid muscle, 1 case in inferior region of sternocleidomastoid muscle. All patients underwent routine preoperative examination and CT examination to evaluate tumor size, boundary, morphology and nature. According to the area where the tumor located, concealed incisions in different sites were designed. Lumps in the submental area and submandibular area were treated with oral vestibular sulcus incision. Benign tumors located in the lower pole region of parotid gland and the sternocleidomastoid muscle region were treated with approach of the short hidden postauricular incision. During the operation, the self-developed "maxillofacial suspension device" was used to provide the operating space. The tumors were completely removed with endoscope and all patients were followed up every 3 months.
Results:
All surgical procedures were performed as expected. Visual analogue scale (VAS) was 9.3 on average at 3 months after operation, all the patients were satisfied with the incision design and the cosmetic effect. No recurrences were found in patients with a follow-up period ranged from 1-15 months.
Conclusions
These studies have shown that endoscope-assisted neck benign tumor resection is a surgical procedure with covert incision and good cosmetic results.
5.Research on clinical practice skills training system based on clinical practice ability
Xinzhi LI ; Xiaoling LIU ; Hong SUN ; Hongrui PANG ; Ketao MA
Chinese Journal of Medical Education Research 2019;18(3):294-297
Clinical medicine is a practical, highly skilled natural science. Solid clinical skills are the cornerstone of medical students' growth and development. According to the change of medical education environment, the tension of doctor-patient relationship and the lack of practical ability, we build a set allround , systematic clinical practice teaching system based on practice curriculum teaching , centralized practice teaching, social practice teaching, practice skills assessment and practice skills competition. The research and practice of the system not only promotes teachers' and student's emphasis on the training of clinical practical skills but also improves student's clinical practice skills, strengthen teachers' clinical skills teaching ability, and boost the construction of clinical skills experimental center.
6.Niflumic acid relaxes mesenteric small artery through downregulating connexin 43 expression in smooth muscle cells from spontaneously hypertensive rat.
Weidong LIU ; Wen ZHANG ; Junqiang SI ; Ketao MA ; Li LI
Chinese Journal of Cardiology 2014;42(5):413-417
OBJECTIVETo explore the impact of niflumic acid (NFA) on connexin 43 (Cx43) expression in smooth muscle cells of mesenteric small artery from spontaneously hypertensive rats (SHR).
METHODSBlood pressure of Wistar rats and spontaneously hypertensive rats (SHR) was measured by the tail cuff method. Relaxation and contraction of mesenteric small artery from Wistar rat and SHR were evaluated by pressure myograph system under various concentrations of NFA. Protein Cx43 expression on primary cultured mesenteric smooth muscle cells from Wistar rats and SHR was detected in the absence and presence of various NFA concentrations by Western blot.
RESULTSPhenylephrine resulted in mesenteric small arteries contraction [(193 ± 13.5) µm], while NFA (3×10(-4) mol/L) could relax the artery [(275 ± 17.1) µm]. The relaxation response in Wistar rats was significantly stronger than that in SHR (P < 0.05). Cx43 expression of the first level branch and the third branch mesenteric artery of SHR were higher than the corresponding branch vessels of Wistar rats, and the Cx43 expression of the third branches of mesenteric artery was higher than that of the first branch (F = 1 014.43, P < 0.01). Cx43 expression in primary cultured mesenteric smooth muscle cells was significantly downregulated post NFA treatment in a concentration dependent manner.
CONCLUSIONIn the SHR mesenteric small arteries, Cx43 may be involved in smooth muscle cells communication, thereby affecting vascular contraction and relaxation responses.NFA could downregulate the expression of Cx43 in SHR mesenteric artery vascular smooth muscle cells and induce vasodilation.
Animals ; Connexin 43 ; metabolism ; Male ; Mesenteric Arteries ; drug effects ; metabolism ; Muscle, Smooth, Vascular ; cytology ; drug effects ; Myocytes, Smooth Muscle ; drug effects ; metabolism ; Niflumic Acid ; pharmacology ; Rats ; Rats, Inbred SHR ; Rats, Wistar ; Vasodilator Agents ; pharmacology
7.Severe acute interstitial lung disease induced by crizotinib therapy in a patient with c-Met amplification non-small cell lung cancer.
Youxin JI ; Zhongfa ZHANG ; Keke NIE ; Ketao LAN ; Chuanxin GENG ; Shichao LIU ; Ling ZHANG ; Zongchun ZHANG ; Lei SUN ; Xiao ZOU
Chinese Medical Journal 2014;127(8):1600-1600
8.Protective effect and mechanism of adiponectin on myocardial inj ury in septic mice
Luqian Liu ; Ling Chen ; Xuqing Qin ; Wenjun He ; Rui Yang ; Liya Shan ; Xinzhi Li ; Ketao Ma
Acta Universitatis Medicinalis Anhui 2022;57(1):36-40
Objective :
To investigate the protective effect of adiponectin APN on myocardial injury caused by sep⁃
sis and its possible mechanism.
:
Methods
Results :
Compared with sham group , the expression of Bax , cleaved Caspase3 protein increased and the expression of Bcl⁃2 protein decreased in LPS group. Compared with LPS group , the injury in APN + LPS group was significantly alleviated , showing that the expression of Bax , cleaved caspase3 protein decreased and the expression of Bcl⁃2 protein increased. Meanwhile , compared with sham group , the expression of Cx43 increased in LPS group and decreased in APN + LPS group.
Conclusion
Adiponectin can attenuate LPS⁃induced cardiac injury in septic mice. The mechanism may be through the inhibition of apoptotic signal pathway and the expression of Cx43.
9.Anti-sepsis effect and mechanism of Apocynum leavesbased on network pharmacology
Yuanshuo OUYANG ; Yanming WANG ; Xuqing QIN ; Han JIANG ; Luqian LIU ; Wenjun HE ; Xinzhi LI ; Ketao MA
Journal of Xi'an Jiaotong University(Medical Sciences) 2021;42(3):484-490
【Objective】 To study the mechanism of Apocynum leaves in the treatment of sepsis by network pharmacology method in order to explore the multi-dimensional research method of Xinjiang ethnic medicine treatment of infectious diseases and provide scientific theoretical basis for clinical medication. 【Methods】 TCMSP and literature collection were used to screen the main active components of Apocynum venetum leaf, and target prediction analysis was conducted by SwissTarget Prediction database. We used Genecards database to screen relevant targets for sepsis, used Omicshare to calculate Venn figure of the intersection targets, constructed the protein-protein interaction network diagram in the STRING database, used Ensembl for name conversion of protein targets, then entered Omicshare server for Go function and KEGG pathway enrichment of dynamic analysis. Last we used Cytoscape3.6.0 software to construct "Apocynum venetum leaf-the active ingredients-targets-Go-KEGG-sepsis" network to explore the mechanism of action of Apocynum’s resistance to sepsis. 【Results】 Kaferol, luteolin, proanthocyanidin B