1.Surgical timing for complex bile duct injury
Journal of Clinical Surgery 2017;25(6):476-477
Complicated bile duct injury greatly affects quality of patients' life and even threatens their life safety because it is difficult to be recognized and reconstructed,also with the poor surgical effect.Regarding to the surgical timing of complicated bile duct injury,it still have a big controversy.Here we would discuss the timing of surgeries for bile duct injury.We consider that it should be reconstructed when it is recognized during operation,even converted to laparotomy for laparoscopic surgeries.About postoperative cases,we think that it should be operated to explore damage range and reconstruct for those cases found within 48 hours and without obvious infection.However,reconstruction should be performed after 6 weeks for those found after 48 hours or with biliary duct infection.
2.Preoperative management of patients with suspected gallbladder cancer
Chinese Journal of Digestive Surgery 2011;10(2):83-86
Gallbladder cancer is a disease associated with high mortality. Improvement of early diagnosis is of great significance to prolong the survival. Risk factors for gallbladder cancer include gallstones, cholelithiasis, anomalous pancreaticobiliary junction, focal mucosal microcalcifications, and et al.Advances in endoscopic ultrasonography, magnetic resonance cholangiopancreatogram and helical computed tomography have enhanced preoperative diagnosis of gallbladder cancer. Understanding the characteristics of gallbladder cancer with the help of multiple imaging modalities can facilitate accurate diagnosis and may also help in sorting patients to undergo extended resection or an alternative therapy. Resection is currently the most effective and only potentially curative treatment for gallbladder cancer.However, owing to its non-specific symptoms, gallbladder cancer patients often suffer from late diagnosis, and few patients are suitable for surgery. Other treatment strategies such as chemotherapy, radiotherapy, percutaneous biliary drainage, palliative surgery are used in patients with advanced gallbladder cancer.For jaundiced gallbladder cancer patients, preoperative biliary drainage is still under debate. Since biliary inflammation adversely affects the prognosis of gallbladder cancer patients,antibiotics with high concentration in bile is recommended for selected patients. Palliative treatment and molecular target therapy are promising for patients with inoperable gallbladder cancer.
3.EFFECTS OF MELATONIN AND SUPERNATANTS FROM CULTURED RATS PINEAL GLAND ON INTERLEUKIN 1 PRODUCTION
Wei WEI ; Xuoguang CHEN ; Junshan LIANG
Chinese Pharmacological Bulletin 1987;0(01):-
Effects of melatonin ( MT ) and supernatants from cultured pineal glands stimulated by 10 ?mol/L isoproterenol (ISO) for 0, 30, 60, 120 min on interleukin I ( IL-1 ) production by peritoneal macrophage ( PM? ) in rats were studied. Theses results showed that LPS-induced IL-1 production by PM? was enhanced by in vitro treatment with MT (0.1~1 ?mol/L ) , but IL-1 production was not influenced by MT without LPS. LPS-induced IL-1 production by PM? was enhanced in various degree by the supernatants, action of supernatants for 60min was best. The data is suggested that LPS-activated M?s may be one of target cells for MT.
4.EFFECTS OF SUPERNATANTS FROM CULTURED RAT PINEAL GLANDS ON THE FUNCTIONS OF LYMPHOCYTES
Wei WEI ; Junshan LIANG ; Xueguang CHEN
Chinese Pharmacological Bulletin 1987;0(02):-
Effects of supernatants from cultured rat pineal glands on ConA and LPS induced proliferative responses of splenocytes in mice, ConA induced interleukin 2 (IL-2) production of splenocytes in rats were studied. These results showed that ConA and LPS induced proliferative responses of splenocytes were enhanced by supernatants from cultured rat pineal glands stimulated with 10 ?mol/L isoproterenol (ISO) for 60 min (Dilution. 1 : 45 ) , ConA induced IL-2 production of splenocytes in rats was also enhanced by the supernatants (Dilution: 1 : 135 ) .
5.EFFECTS OF MELATONIN ON THE FUNCTIONS OF LYMPHOCYTES
Wei WEI ; Junshan LIANG ; Xueguang CHEN
Chinese Pharmacological Bulletin 1987;0(02):-
Effects of melatonin ( MT) on Con A or LPS-induced prolifera-tive responses of splenocytes in mice and Con A induced interleukin 2 ( IL-2 ) production of splenocytes in rats were studied. The results showed that Con A and LPS induced proliferative responses of splenocytes were enhanced by in vitro treatment with MT (0.01~1?mol/L and 0.01~10?mol/L, reinduced-pectively ) . ConA IL-2 production of splenocytes were also enhanced by in vitro treatment with MT (1~10?mol/L), but MT has no effects oa above functions of splenocytes without activating by ConA or LPS. These data suggested that mitogen activated lymphocytes might be one of the target cells for MT.
6.Development of automatic urine monitoring system.
Liang WEI ; Yongqin LI ; Bihua CHEN
Chinese Journal of Medical Instrumentation 2014;38(2):114-121
An automatic urine monitoring system is presented to replace manual operation. The system is composed of the flow sensor, MSP430f149 single chip microcomputer, human-computer interaction module, LCD module, clock module and memory module. The signal of urine volume is captured when the urine flows through the flow sensor and then displayed on the LCD after data processing. The experiment results suggest that the design of the monitor provides a high stability, accurate measurement and good real-time, and meets the demand of the clinical application.
Autoanalysis
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instrumentation
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Equipment Design
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Monitoring, Physiologic
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instrumentation
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Urination
7.Comparison Between Laparoscopic and Open Radical Operation in Patients with Rectal Cancer of Different Ages
Hui LIANG ; Wei GUAN ; Guoyu CHEN
Chinese Journal of Bases and Clinics in General Surgery 2008;0(10):-
0.05).In the elderly group,every complication rates of LR were lower than those of OR(P
8.The application of sacral chordoma preoperative embolization with gelatin sponge
Zhihong QIAO ; Liang CHEN ; Wei LONG
Journal of Chinese Physician 2012;(z2):28-30
Objective This paper aimed to evaluate the effect of preoperative embolization on the intraoperative blood loss of sacrum chordoma.Methods forty patients involved with the spinal chordoma were retrospectively analyzed in this study.The preoperative embolization group consisted of 16 sacrum chordoma patients were embolizationed by gelatin sponge particles (10 male and6 female)age from 35 to 71 years old,(mean 57.9 years) ; and the control group consisted of 4 sacrum chordoma patients (3 male and 1 female),age from 43 to 61 years old(mean 51.8 years).analyzed the predictive value of preoperative embolization in correlation with the intraoperative blood loss.Results The mean blood loss (2025.0 ±818.5)ml of sacrum chordoma in the preoperative embolization group was insignificantly than that (1950.0 ± 802.1) ml in the control group,(P > 0.05).Conclusion The study shows that the preoperative feeding artery embolization of the spinal tumor has no significant effect on the intraoperative blood loss in the surgical excision of the sacrum chordoma.
9.Translational research of the relationship between rapamycin and hepatocellular carcinoma
Tingbo LIANG ; Xueli BAI ; Wei CHEN
Chinese Journal of Digestive Surgery 2012;(6):497-499
Translational medicine is a new concept in China.It sets up a bridge between basic research and clinical work,and aims to transfer the basic study results to clinical practice as soon as possible.It is necessary for a surgeon to master the research idea of translational medicine in order to be expert in science and technique.Many unsolved clinical problems could be found in routine work,which is an advantage for translational medicine research.How to raise questions in routine clinical work and get these questions resolved in laboratory,and then apply the results to clinical work is a demand for surgeons nowadays.In this article,the research idea of translational medicine is introduced based on an example of the research on the relationship between rapamycin and hepatocellular carcinoma.
10.An electrophysiological study on brain functional reorganization of different operative modes of contralateral C7 transference treating total brachiai plexus avuision in young rats
Haifeng WEI ; Liang CHEN ; Yudong GU
Chinese Journal of Orthopaedics 2009;29(6):576-581
Objective To detected the motor cortex reorganization and compared the influence on reorganization process as regard to different transfer modes of contralateral seventh cervical nerve root (C7)in young rats model of total brachial plexus root avulsion. Methods The young Sprague-Dawley rats model of total brachial plexus root avulsion was established. The left radix dorsalis and radix ventralis from the fifth cervical nerve root (C5) to the first thoracic nerve root (T1)were exposed and the roots from C5 to T1 were avulsed from the spinal cord. Then, the contralateral C7 transfer operation was performed. Three different operative modes were applied randomly which included contralateral C7 transference to anterior division of the upper trunk (group A, n=30), to both musculocutaneous and median nerves (group B, n=30), or to median nerve (group C, n=30). The movement evocation of motor cortex was measured by intracortical microstimula-tion in both hemispheres, and functional reorganization was assessed dynamically in 1.5, 3, 6, 9 and 12 months after operation. Results After contralateral C7 transference, the ipsilateral motor cortex initially acti- vated the injured limb at 1.5 month, and subsequently the motor cortex of both hemispheres activated the in-jured limb at the 3rd and 6th month. The injured limb was activated mainly by the contralateral motor cortex in group A at the 9th month. The contralateral motor cortex exclusively controlled the injured limb in all three groups at the 12th month after the operation. Meanwhile, the extent of functional reorganization was better in group B than that of group C. Conclusion After contralateral C7 transfer operation, motor cortex in charging injured limb developed a transhemispheric functional reorganization in young rats with total brachial plexus root avulsion. Different operative modes contributed to the functional reorganization of motor cortex. Transferring contralateral C7 to anterior division of the upper trunk or to both musculocutaneous and median nerves provided better functional reorganization than to median nerve.