1.FUNCTIONAL RECONSTRUCTION OF DEFECATION AND URINARY FUNCTIONS IN PARAPLEGIC PATIENTS BY VASCULARIZED INTERCOSTAL NERVES TRANSFER TO SACRAL NERVE ROOTS WITH SELECTED INTERFASCICULAR ANASTOMOSIS
Shaocheng ZHANG ; Yuhai MA ; Zhenwei ZHANG
Medical Journal of Chinese People's Liberation Army 2001;0(09):-
The aim of this procedure is to reconstruct the defecation and urinary functions in paraplegic patients. In 30 patients, two normal vascularized intercoastal nerves above the paraplegic level were isolated and their distal ends divided. They were transferred to the vertebral canal through a submuscular tunnel. The sural nerve was harvested with enough length and separated into two segments, which were sutured as a bridge with S 2-4 nerve roots by interfascicular neurorrhaphy in patients with spinal cord injury above T 11 or with S 2-4 nerve roots outside of the vertebral canal in patients with spinal cord injury below T 12. After 2 to 11-year (mean 5 years) follow-up, 26 (86.6%) patients regained partial micturition reflex and defecation reflex, and partial sensation (S1-2) in buttock, perineal and vulva regions. In 23 (76.7%) patients had also recovery of the function of voluntary urination, and 8 (27%) of them showed partial recovery of function of the detrusor muscle, urethral sphincter, and anal sphincter. The results showed that the procedure described above could be used as an alternative method to reconstruct the function of defecation and urination, and also partial sensation of perineal and vulval region in a part of paraplegic patients.
2.Effect of long-term endogenous testosterone deprivation on function of voltage-dependent potassium channels in rat aortic artery
Ping ZHOU ; Lu FU ; Zhenwei PAN ; Dan MA ; Junxian CAO
Chinese Journal of Pathophysiology 1986;0(03):-
AIM:To explore the effect of long-term (6 months) endogenous testosterone deprivation by orchidectomy on the function of voltage-dependent potassium channels of vascular smooth muscle cells in rats. METHODS:Wistar rats were raised for 6 months after castration. Isometric tension measurement of aortic rings,whole-cell patch-clamp technique and Western blotting analysis were employed to examine the functional and posttranscriptional alterations of voltage-dependent potassium channels. RESULTS:Voltage-dependent potassium channel blocker,4-aminopyridine,significantly decreased the constriction of aortic artery rings from male rats after 6-month castration. In castrated rats the amplitude of voltage-dependent potassium currents of aortic artery smooth muscle cells was significantly decreased compared with that in control rats. Meanwhile,the expression of Kv 1.5 channel protein,which plays an essential role in mediating vasomotor function,was also reduced. The functional and molecular alterations of voltage-dependent potassium channels were both restored when the rats were concomitant applied with physiological level of testosterone after castration. CONCLUSION:Long-term deprivation of endogenous testosterone in rats significantly attenuates the function of voltage-dependent potassium channels,and the decreases in expression of Kv1.5 channel protein accounts for this alteration. Long-term application of physiological concentration of testosterone,which recovered the impaired function of voltage-dependent channels,may be beneficial for male gender with hypotestosteronaemia.
3.Pathologic grading and clinical features of chronic hepatitis B.
Hongbo MA ; Zhenwei LANG ; Ronghua JIN ; Chun HUANG ; Rui JIN
Chinese Journal of Hepatology 2002;10(1):52-54
OBJECTIVETo raise the accuracy of clinical diagnosis of chronic hepatitis B.
METHODSThe correlation between the clinical features, biochemical tests (the serum total bilirubin-TBil, albumin-ALB, prothrobin activity-PTA, alanine aminotransferase-ALT, albumin/globulin-A/G, and r-globulin-r-G) and histopathological data in 202 patients with chronic hepatitis B (CHB) were studied.
RESULTSSome of presenting symptoms and signs were obviously associated with histological grade and stage. The grade of necroinflammatory activity of CHB was associated with the rising TBil, ALT, GGT and the declining ALB, A/G and PTA. The coincidence of clinical diagnosis and pathology was highest in mild chronic hepatitis, 63.8%~79.0%; then was in marked chronic hepatitis, 40.0%~62.5%. The coincidence was lowest in moderate chronic hepatitis, 10.0%~28.2%.
CONCLUSIONSGreat attention should be paid to the significance of symptoms and signs, meanwhile the standard of clinical diagnosis for moderate chronic hepatitis might be relaxed somewhat.
Adolescent ; Adult ; Aged ; Alanine Transaminase ; blood ; Bilirubin ; blood ; Biomarkers ; analysis ; blood ; Clinical Medicine ; Female ; Hepatitis B, Chronic ; blood ; diagnosis ; pathology ; physiopathology ; Histological Techniques ; Humans ; Male ; Middle Aged ; Prothrombin ; analysis
4.Nutritional components and aging-delaying action of some wild berries in Changbai Mountainous Area
Zhenwei GAN ; Daxu ZHANG ; Yajie ZHANG ; Qiuli CHEN ; Huafeng LIU ; Xuanyue MA
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(04):-
Objective To investigate the nutritional components and aging-delaying action of some wild berries such as vaccimum vitia-idaea, vitis amurensis, and actinidia arguta in Changbai Mountainous area. Methods Contents of vitamin B 1, B 2, C, niacin, ?-carotene, and minerals such as Fe, Ca and Zn were analyzed. Wild berry juice was administered to aged mice for 30 days respectively at the doses of 3 g?kg -1 and 6 g?kg -1. Then activities of SOD and GSH-Px, and contents of MDA and lipofuscin were measured. Results Contents of vitamin B 1, B 2, C, ?-carotene, and Fe, Ca, Zn in the berries were significantly higher than those in common cultivated fruits. In the meantime, activities of SOD and GSH-Px in red blood cells and the liver were enhanced remarkably (P
5.The relationship between liver fibrosis stages and the diameters of broadening main portal vein and spleen vein, splenectasis, and hematological tests.
Hongbo MA ; Zhenwei LANG ; Rui JIN ; Ronghua JIN
Chinese Journal of Hepatology 2002;10(2):131-131
Adolescent
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Adult
;
Aged
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Child
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Child, Preschool
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Female
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Hematologic Tests
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Humans
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Liver Cirrhosis
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pathology
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Male
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Middle Aged
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Portal Vein
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diagnostic imaging
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pathology
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Severity of Illness Index
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Spleen
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blood supply
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pathology
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Splenic Vein
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diagnostic imaging
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pathology
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Ultrasonography, Doppler, Color
6.Causes and Protection of Intracranial Aneurysms Uncompletely Embolized with Micro-coils
Tao LEI ; Zhenwei ZHAO ; Xiyan MA ; Guodong GAO ; Jianping DENG ; Youzhi QU
Journal of Practical Radiology 1996;0(04):-
Objective To study the causes and protection of intracranial aneurysms uncompletely embolized with micro-coils. Methods 47 cases of intracranial aneurysms were treated with micro-coils to embolize the aneurysaml sac via femoral artery approach to endovascular embolization.The aneurysms were located on AcoA in 19,on MCA in 7,on PcoA in 16 and on ICA in 5,2 aneurysms were foundin each of 2 cases. Results The uncompletely occuluded in 12 of them,aneurysms were completely occluded in 35,9 aneurysms wereoccluded to 95%,2 aneurysms were occluded to 90%,1 neurysms were occluded to 80%. Conclusion The wide neck intracranialaneurysms,hugeness intracranial aneurysms and ophidian,irregular intracranial aneurysms are of high rate of uncompletely occluded.Usingbasket-technique,remodel technique,vein rebuild technique and nibble subdivision endovascular embolization can decrease the rate ofuncompletely embolize intracranial aneurysm.
7.Reconstruction of bowel and bladder function in paraplegic patients by vascularized intercostal nerve transfer to sacral nerve roots with selected interfascicular anastomosis
Shaocheng ZHANG ; Yuhai MA ; Laurance JOHNSON ; Zhiwei WANG ; Chuangyu QU ; Zhenwei ZHANG ; Yuhua HU ; Chuansen ZHANG ; Ruishan DANG ; Qiulin ZHANG
Chinese Journal of Tissue Engineering Research 2006;10(17):190-192
BACKGROUND: Independent urination and defection functions do not exist in patients with paraplegia above T12 because the injury disrupts the connection to the brain.OBJECTIVE: To reconstruct urination and defecation functions in patients with paraplegia with vascularized intercostal nerve transfer to sacral nerve roots with selected interfascicular anastomosis.DESIGN: Self-control observation.SETFING: Department of Orthopedics, Changhai Hospital of the Second Military Medical University of Chinese PLA.PARTICIPANTS: We recruited 30 patients with traumatic paraplegia at T9-L2 who received treatment in the Department of Orthopedics,Changhai Hospital of the Second Military Medical University of Chinese PLA, from January 1990 to December 2000. Paraplegia plane at T9-T11was found in 17 cases and paraplegia plane at T12-L2 in 13 cases. All the cases had undergone vertebral lamina decompression and internal fixation, 24 of whom had an additional operation to remove the internal fixation.METHODS: Two normal vascularized intercoastal nerves and artery and vein (intercostals nerves were generally at ribs 7 and 8 or 9 and10)above the spinal cord injury site were harvested by cutting in at their distal ends at the midclavicular line and separating the proximal ends from the levatores costarum. The nerves were then transferred to the vertebral canal through a submuscular tunnel. A sural nerve segment that had been harvested and sheared into two segments was sutured to the intercostal nerves by epiperineurial neurorrhaphy and then to the S2-4nerve roots by interfascicular neurorrhaphy. For patients with spinal injury plane below T11, intercostal nerve or subcostal nerve among the 10th and 11th ribs were harvested from the incision of abnormal wall. The nerves were transferred to the lumbar part through the channel of lateral abdominal wall. The transplanted sural nerve was conrected to S2-4 nerve root of partial nerve tract cut alternatively and exposed from S1,2 plane posterior. Defecation function of the patients was evaluated at postoperative 1, 3, 6, 12 and 24 months and follow-up; urodynamic examination was performed before and after operation.patients.RESULTS: A total of 30 patients were followed up for 5 years on average,tion and defecation functions of the patients: 26 (86.6%) had recovered defecation and urination sensation, 23 (76.7%)regained the micturition reflex and uriesthesis; 19 (63%) had recovered function of the detrusor The postoperative maximum urine flow ratio, surplus urine volume, and the maximum systolic pressure of detrusor muscle were obviously improved as compared with those before operation [(12.0±3.0) vs (2.0±0.3) mL/s,(80±12) vs (150±30) mL, (11.76±3.43) vs (5.88±1.47) kPa, P < 0.05]. Postoperative low compliance was found in 9 cases, and detrusor areflexia in 7cases. The number was both significantly decreased as compared with that of preoperative cases (26 and 27 respectively).CONCLUSION: Transfer of vascularized intercostal nerve to S2-4 nerve roots with selected interfascicular anastomosis can reconstruct partial urination and defecation functions, and sensation in buttock, perineal region and cunnus region in paraplegia.
8.Clinical study of Wingspan stents for symptomatic atherosclerotic stenosis of the basilar artery
Yuan CHAI ; Lili CHAI ; Tao ZHANG ; Hu CHEN ; Xinyu LI ; Wei MA ; Lili JING ; Jianping DENG ; Zhenwei ZHAO ; Guodong GAO
Journal of Practical Radiology 2014;(6):1003-1006,1025
Objective To assess the efficacy and feasibility of Wingspan stents for symptomatic atherosclerotic stenosis of the bas-ilar artery.Methods Clinical data of 40 patients with symptomatic atherosclerotic stenoses in the basilar artery were analyzed retro-spectively.The operative successful rate,the degree of stenosis,perioperative complications and the results of clinical and imaging follow-up were analyzed.Results The technical success rate was 95.35%.The rate of procedure-related complications during the perioperative period (30 days)was 20.0% (eight of 40 patients).There were two patients with no permanent neurological sequelae. Ipsilateral stroke or death occurred in six patients(1 5%).Thirty-six patients(92.3%)were available for a clinical follow up.The mean follow-up period was 36.3 months (range 12-75 months).Seventeen patients (47.2%)were available for follow-up imaging with DSA or CTA.The mean imaging follow-up period was 9.4 months (range 4-41 months).Symptomatic in-stent restenosis (ISR)was documented in two (1 1.76%)of these patients.Three ischemic events occurred during the follow-up period in 12 months.The adverse event rate was 8.33% at 1 year.Conclusion Wingspan stents for symptomatic atherosclerotic stenosis of the basilar artery was an effective and feasible technique,but we should carefully grasp the operation indications.
9.Risk factors of critically ill patients with gastrointestinal dysfunction and effects on prognosis
Junxiu MA ; Zhenwei LI ; Jiawei JIANG ; Wei CAO ; Linghua FAN
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2019;26(5):569-572
Objective To analyze the risk factors of gastrointestinal dysfunction in critically ill patients and provide reference for the prevention and treatment of gastrointestinal dysfunction. Methods A retrospective study was conducted, and the data of patients admitted to intensive care unit (ICU) of Jinghai District Hospital from September 2018 to March 2019 were collected. The data including sex, age, sequential organ failure score (SOFA), acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ), diagnosis in ICU, application of special drugs, hemoglobin (Hb), blood glucose, albumin (Alb) levels and presence or absence of bacteremia were collected. The patients were divided into gastrointestinal dysfunction group and non-gastrointestinal dysfunction group according to whether gastrointestinal dysfunction occurred or not. The general data, related final outcome and prognosis were compared between the two groups. Logistic regression analysis was used to analyze the risk factors affecting gastrointestinal dysfunction in critical ill patients, and the possible existing complications were recorded. The receiver operating characteristic curve (ROC) was drawn to evaluate the predictive values of risk factors. Results One hundred and thirty-eight patients were enrolled in this study, and 86 patients had gastrointestinal dysfunction. The SOFA score and proportions of using catecholamine and bacteremia in the gastrointestinal dysfunction group were significantly higher than those in the non-gastrointestinal dysfunction group [SOFA score: 7.2±3.8 vs. 5.8±3.6, the proportion of using catecholamine: 57.0% (49/86) vs. 38.5% (20/52), the proportion of bacteremia: 32.6%(28/86) vs.17.3%(9/52), all P < 0.05], Alb level was significantly lower than that in the non-gastrointestinal dysfunction group (g/L: 24.15±5.75 vs. 26.55±5.68, P < 0.05). Logistic regression analysis showed that the use of catecholamine, Alb level, bacteremia and SOFA score in ICU were the risk factors for occurrence of gastrointestinal dysfunction in ICU patients [odd ratios (OR) were 1.128, 0.547, 1.645, 1.958, 95% confidence intervals (95% CI) were 1.052-1.219, 0.384-0.765, 1.143-2.597, 1.925-1.993, P values were 0.011, 0.017, 0.021, 0.016, respectively]. Compared with the non-gastrointestinal dysfunction group, the incidence of bedsore, the proportion of energy intake unable to reach the target, the length of stay in ICU and the mortality in gastrointestinal dysfunction group were significantly increased [the incidence of bedsore: 53.5% (46/86) vs. 30.8% (16/52), the proportion of intake unable to reach the target: 27.9% (24/86) vs. 5.8% (3/52), the length of stay in ICU (days): 22.5±17.8 vs. 16.0±11.5, mortality rate: 51.2% (44/86) vs. 34.6% (18/52), all P < 0.05]. ROC curve analysis showed that the use of catecholamine, bacteremia present or not, Alb level and SOFA score showed certain extents of predictive values for the occurrence of gastrointestinal dysfunction in critically ill patients the area under ROC curve (AUC) were 0.794, 0.712, 0.705 and 0.882, respectively, 95% confidence interval (95% CI) were 0.708-0.880, 0.609-0.816, 0.579-0.830, 0.801-0.962, sensitivity were 58.8%, 42.5%, 76.3%, 75.0%, specificity were 100%, 60%, 100%, 85%, all P < 0.05. Conclusions The use of catecholamine, Alb level, bacteremia and high SOFA score are the risk factors of gastrointestinal dysfunction in critically ill patients. Prevention of gastrointestinal motility disorder can improve the treatment success rate of critical patients.
10.Study on the mechanism of heterogeneous nuclear ribonucleoprotein L promoting the proliferation of hepatocellular carcinoma cells
Jiaxin CHEN ; Song HU ; Fubin LIU ; Zhenwei MA ; Kang YANG ; Shengquan ZOU ; Fei XIONG ; Bing WANG
Chinese Journal of Hepatobiliary Surgery 2023;29(9):694-699
Objective:To investigate the effect of HNRNPL protein on the proliferative ability of primary hepatocellular carcinoma cells and its potential mechanism.Methods:Online public database and real-time quantitative PCR were used to analyze the difference of HNRNPL expression between cancer and adjacent tissues. The effects of HNRNPL on HCC cell MHCC97H and HepG2 proliferation and MAPK pathway were investigated by Western blot, cell counting assay, colony formation assay and nude mouse transplantation tumor experiments.Results:The level of HNRNPL mRNA was validated to be higher in HCC tissue (2.76±0.37) than in normal tissue (1.00±0.14) with statistical difference ( t=3.93, P=0.002). Colony formation assay showed that the colony numbers of two MHCC97H knockdown groups (33.3±7.7) and (43.3±2.2) were lower than their control group (84.3±6.2), and two HepG2 knockdown groups (59.0±15.5) and (41.7±4.8) were lower than their control group (200.3±6.2) with statistical difference (both P<0.01). HNRNPL knockdown decreased the proliferation ability and activation level of MAPK pathway in HCC cells. Overexpression of oncogene c-RAF partially alleviated the anti-proliferation effect of HNRNPL knockdown and rescued the tumorigenic capacity. Conclusion:HNRNPL can promote hepatocellular carcinoma cell proliferation by activating MAPK signaling pathway.