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OBJECTIVE@#To analyze the reliability of the Water Tank Scale for assessing recovery of motor function after spinal cord injury (SCI) in rats.@*METHODS@#Thirty-six adult female SD rats were randomly divided into SCI and sham-operated groups (n= 18). The recovery of the hind limb motor function was assessed using Water Tank scoring, BBB scoring, and motor-evoked potentials (MEP) at 1, 3, 5, 7, 14 and 21 days after SCI. MEP was used as the gold standard for analyzing and comparing differences between the two scoring methods.@*RESULTS@#The Water Tank scores of the rats were significantly higher than the BBB scores on day 3 (0.22±0.43 vs 0, P < 0.05) and also on days 5, 7 and 14 after SCI (0.67±0.49 vs 0.11±0.32, 4.33±1.19 vs 2.83±1.04, 8.61± 1.20 vs 7.06±1.0, P < 0.01). On day 21 after SCI, the scores of the Water Tank Scale of the rats did not significantly differ from the BBB scores (14.78±1.06 vs 14.50±1.47, P>0.05). Neurophysiological monitoring showed that both the Water Tank score and BBB score were significantly correlated with MEP latency, but the Water Tank score had a greater correlation coefficient with MEP latency (r=-0.90).@*CONCLUSION@#Compared with the BBB scale, Water Tank scoring allows more objective and accurate assessment of functional recovery of the spinal cord in early stages following SCI in rats, and can thus be used as a reliable method for assessing functional recovery of the hind limbs in rat models of acute SCI.
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Female , Animals , Rats , Rats, Sprague-Dawley , Reproducibility of Results , Spinal Cord Injuries , WaterABSTRACT
Peripheral artery aneurysms,with low incidence and complex anatomic structure,often involve important branches.This paper introduces a new surgical technique-sleeve shaping on the basis of two cases.The basic data,including characteristics,imaging,operation and follow-up data of the cases,were collected.The data were then combined with the previous literature for explaining in detail that this technique can be used as a supplementary method of reconstruction following resection or endovascular repair.
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Humans , Aneurysm/surgery , Arteries , Treatment OutcomeABSTRACT
Objective To explore the cause and the treatment strategies of iliac limb occlusion after endovascular abdominal aortic aneurysm repair(EVAR). Methods The patients receiving EVAR in PUMC Hospital from January 2015 to December 2020 were retrospectively analyzed.Sixteen(2.7%)cases of iliac limb occlusion were identified,among which 6,9,and 1 cases underwent surgical bypass,endovascular or hybrid procedure,and conservative treatment,respectively. Results Fifteen cases were successfully treated.During the 10.6-month follow-up,2 cases receiving hybrid treatment underwent femoral-femoral bypass due to re-occlusion of the iliac limb. Conclusions Iliac limb occlusion mostly occurs in the acute phase after EVAR,and endovascular or hybrid treatment can be the first choice for iliac limb occlusion.It is suggested to focus on the risk factors for prevention.
Subject(s)
Humans , Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis , Blood Vessel Prosthesis Implantation/adverse effects , Endovascular Procedures , Iliac Artery/surgery , Retrospective Studies , Risk Factors , Stents , Treatment OutcomeABSTRACT
Objective To explore the clinical significance of some risk factor,such as blood calcium serum alkaline phosphatase (ALP) and hemoglobin (Hb) for predicting or diagnosing bone metastases from urinary bladder neoplasms.Methods A total of 35 patients diagnosed as urinary bladder neoplasms and bone metastasis based on the histopathologic analysis (bone metastasis group,BM),and 105 cases of age-,sex-and follow-up time matched urinary bladder neoplasms patients without bone metastasis (non bone metastasis group,NBM) were included in present study.The correlations between clinical-pathological parameters (blood calcium,ALP,Hb) and bone metastases from urinary bladder neoplasms were analyzed and the risk factors for predicting or diagnosing bone metastases were identified.Results The levels of blood calcium,ALP and Hb were significantly higher at first diagnosis and follow-up period in BM group than in NBM group (P＜0.05).Multivariate logistic regression analysis indicated that the levels of calcium,ALP and Hb at first diagnosis were the independent risk factors for predicting the later incidence of bone metastases (P＜0.05).The levels of calcium,ALP and Hb in follow-up period were the independent risk factors for diagnosing bone metastases (P＜0.05).Receiver operating characteristic (ROC) curves analysis showed that the levels of calcium,ALP,Hb may give a more accurate prediction on bone metastases (AUC:0.615,0.704,0.692;cut-off:2.55mmol/L,97.0U/L,101.5g/L,respectively) or diagnosing bone metastases (AUC:0.706,0.776,0.829;cut-off:2.46mmol/L,112.5U/L,103.5g/L,respectively).Conclusion The levels of blood calcium,ALP and Hb may be used to predict the risk of bone metastases for patients firstly diagnosed as urinary bladder neoplasms,and predict whether the patients will be complicated with bone metastases during follow-up period.
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Objective To determine whether interval-spaced sessions of partial splenic artery embolization(PSE) is a safe and effective alternative treatment for hypersplenism in juvenile patients. Methods Eight patients(3 males and 5 females) were included in this retrospective study.All patients were diagnosed as hypersplenism and underwent PSE in 2-3 sessions separated by 1-2 month intervals.Immediate,short,and long term follow-up were done.The effectiveness of the treatment was evaluated.Results No major postoperative complication was noted.No patient developed septic shock,splenic abscess,or spleen rupture.Postoperative pain and fever were common and manageable;only two patients developed loculated pleural effusions,which were well alleviated after conservative treatment.All patients showed significant increase in thrombocytes and white blood cells count after the first session of embolization.The cell counts became remarkable after the last session and remained at normal levels during the follow-up period.Conclusions PSE using 2-3 interval-spaced sessions can effectively decrease spleen size and reverse hypersplenism in juvenile patients.Also,it may reduce the postoperative complications commonly seen in traditional PSE.
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<p><b>OBJECTIVE</b>To investigate the safety of assisted reproductive technology (ART) with donated sperm from the sperm bank and the differences in the pregnancy outcomes of different means of promoting pregnancy.</p><p><b>METHODS</b>We analyzed and compared the feedback data on promoting pregnancy with donated sperm from the sperm bank by artificial insemination by donor (AID), in vitro fertilization (IVF), and intracytoplasm sperm injection (ICSI).</p><p><b>RESULTS</b>Totally, 13 723 tubes of sperm specimens were used for ART. The number of specimens used differed in different clinical reproductive centers, some using 1 tube and others using 2 tubes per cycle. The 13 723 tubes were used for a total of 7 743 cycles. Among the 7 123 cycles of AID, there were 1 415 clinical pregnancies (19.87%), 1 221 normal births (86.29%), 169 abortions (11.94%), 6 cases of birth defects (0.43%), 19 ectopic pregnancies (1.34%), and 0 sexually transmitted infection. Among the 571 cycles of IVF, there were 367 clinical pregnancies (64.27%), 330 normal births (89.92%), 35 abortions (9.54%), 0 birth defect, 2 ectopic pregnancies (0.54%), and 0 sexually transmitted infection. Among the 49 cycles of ICSI, there were 28 clinical pregnancies (57.14%), 25 normal births (89.29%), 3 abortions (10.71%), 0 birth defect, 0 ectopic pregnancy, and 0 sexually transmitted infection. There were statistically significant differences in the rate of clinical pregnancy among AID, IVF and ICSI (P < 0.05), but not between IVF and ICSI (P > 0.05), nor were there any significant differences in the rates of abortion, birth defects and ectopic pregnancy among AID, IVF and ICSI (P > 0.05).</p><p><b>CONCLUSION</b>None of the recipients of the donated sperm from the sperm bank was infected with sexually transmitted diseases. AID, IVF and ICSI showed no significant differences from natural conception in the rates of abortion, birth defects and ectopic pregnancy. ART with donated sperm from the sperm bank is safe. IVF and ICSI are associated with a higher rate of pregnancy than AID, though the latter costs less than the former two.</p>
Subject(s)
Female , Humans , Male , Pregnancy , Fertilization in Vitro , Pregnancy Outcome , Pregnancy Rate , Sperm Banks , Sperm Injections, Intracytoplasmic , SpermatozoaABSTRACT
Background Neovascular glaucoma is a type of refractory glaucoma.Biological amnion combined with glaucoma valve implantation is a primary therapy and its long-term effectiveness is noticeable. Objective The goal of this Survey was to evaluate the effectiveness of biological amnion combined with glaucoma valve implantation for neovascular glaucoma and compare the clinical outcome with simple glaucoma valve implantation. Methods This was a retrospective observational case series.The clinical data of 44 eyes of 44 patients received biological amnion combined with glaucoma valve implantation for neovascular glaucoma and 43 eyes of 43 patients received simple glaucoma valve implantation for neovascular glaucoma were retrospectively analyzed and compared.The age,sex and disease-cause were matched between these two groups.Patients were followed-up for 24 months after operation.Surgery success was identified as the intraocular pressure(IOP)<21 mmHg after operation.Written informed consent was obtained from each patient prior to the operation.Results The IOP was<21 mmHg throughout the follow-up duration in both groups.No significant difierence was found in the IOP value in 1 week after operation between two groups(t=-5.34,P=0.60).However,IOP values were lower in biological amnion combined with glaucoma valve implantation group in 3,12 and 24 months after operation than those of simple glaucoma valve implantation(t=6.64,t=5.00,t=7.81,P<0.01).Operation successful rates in biological amnion combined with glaucoma valve implantation group were 97.73％.93.18％。90.24％and 82.05％in 1 week,3 months,12 months and 24 months respectively after operation.and those in simple glaucoma valve implantation were 95.35％,71.43％,65.00％and 60.53％in corresponding time points,showing considerably significant differences between two groups (χ2=7.06,χ2=7.47,χ2=4.37,P<0.05).There was no significant difference in Ihe number of eyes with complication between the two groups(P>0.05). Conclusion The biological amnion combined with glaucoma valve implantation surgery may be more effective and safe for the treatment of neovascular glaucoma than with glaucoma va]ve only.
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AIM: To study the effects of geranylgeranylacetone(GGA) on the expression of heat shock protein70(HSP70) on retinal ganglion cells(RGC) in rats with chronic intraocular pressure(IOP) elevation.METHODS: Seventy Wistars were divided into blank control group(10 rats), chronic hypertension group(30 rats) and GGA group(30 rats). Chronic hypertension was created by cauterizing the superficial scleral veins. 800mg/(kg·d)GGA was given by oral daily after cauterization. Immunohistochemistry was used respectively to observe the changes of expression of HSP70 in the model rats and GGA interference rats at different time points during the course of chronic IOP elevation.RESULTS: The successful model was identified as the IOP over 40% of normal rats. The retinal thickness was significantly reduced in model group and model+ GGA group compared with normal rats from 21 days through 28 days after cauterization(P<0.05), and that of model rats was obviously decreased in comparison with model+ GGA rats(P<0.05). The number of ganglion cells was significantly decreased in model rats and model+ GGA rats compared with normal rats from 21 days and 28 days. The stronger expression intensity(IOD) value was seen for HSP70 in the model+ GGA rats by immunochemistry(P<0.01).CONCLUSION: Systemic administration of GGA protects retina from chronic IOP elevation by regulating the expression of HSP70.
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·AIM: To study the expressive variation of Nogo-A on rat retina in the process of chronic ocular hypertension. · METHODS: Thirty-six healthy adult male Wistars were randomly divided into control group (6 rats) and chronic hypertension group (30 rats). Chronic hypertension was created by cauterizing the superficial scleral veins. Immunohistochemistry technique was used to evaluate the expressive varieties of Nogo-A at different time points during the course of chronic ocular hypertension. · RESULTS: The success of the model was indicated by over 40% of increase in the IOP as compared with normal rats. Compared with control group, as time passed chronic hypertension group gradually had detectable morphology changes in the retina. At the 21st day of chronic ocular hypertension, retinas became thinner and the quantity of retinal ganglion cell (RGC) decreased (P<0.05). Assoicated with the morphological changes, the expression of Nogo-A was strongly increased (P<0.05).CONCLUSION: Myelin associated protein Nogo-A plays a part in the process of chronic ocular hypertension.
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<p><b>OBJECTIVE</b>To analyze the correlations between increased spinal cord signal intensity on magnetic resonance images (MRI) and the clinical prognosis of compressive cervical myelopathy.</p><p><b>METHODS</b>Sixty-six patients with cervical spondylotic myelopathy underwent surgeries through the anterior approach. In all the patients, the diagnoses were established on the basis of both neurological examination and MRI findings that showed spinal cord compression. The patients were divided into two groups according to preoperative MRI, namely isointense MRI T1/T2 signal group and iso/hyperintense MRI T1/T2 group. The JOA scores of the patients were evaluated before and at 6 and 12 months after the operation.</p><p><b>RESULTS</b>The patients were followed up for 12 to 38 months after the operation (mean 21 months), and no statistically significant difference were found in the pre- and postoperative JOA scores between the two groups (P>0.05).</p><p><b>CONCLUSION</b>The peoperative hyperintense signals on T2 weighted MRI does not correlate to the prognosis of patients with compressive cervical myelopathy, who may also have favorable clinical outcomes after the operation.</p>
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Cervical Vertebrae , Pathology , General Surgery , Magnetic Resonance Imaging , Prognosis , Spinal Cord Compression , Diagnosis , General Surgery , Spinal Osteophytosis , Diagnosis , General SurgeryABSTRACT
<p><b>OBJECTIVE</b>To study the effect of gamma linolenic acid (GLA) on atherogenesis in rats.</p><p><b>METHOD</b>Sixty healthy male rats were randomly divided into 6 groups: normal contro 1, fed by normal feed; atherogenesis mode 1, fed by high lipid diet; positive control group 0.9 mg x kg(-1) x d(-1) of lovastatin and group IV 250 mg x kg(-1) x d(-1) duoxikang; high dose of 375 mg x kg(-1) x d(-1) GLA; low dose of 187.5 mg x kg(-1) x d(-1) GLA. After the model group received atherogenic diet for six weeks, serum triglyceride (TG), total cholesterol (TC), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C) were detected by enzyme method to confirm the formation of atherogenic. After fed for another five weeks, morphologic atherosclerosis of aorta in rats was observed by HE staining methods. The blood samples were collected and serum TC, TG, HDL-C, LDL-C, T-AOC, HL, LPL, NO, NOS, MDA and GSH were determined.</p><p><b>RESULT</b>GLA attenuated the formation of atherosclerotic plaques, inhibited the level of serum TC, TG, MDA, OX-LDL, NO, NOS, HL, LPL and LDL-C and increased the level of T-AOC.</p><p><b>CONCLUSION</b>GLA might significantly attenuate the development of atherosclerosis in rats fed with high lipid diet through improving the antioxidation capacity of the body.</p>
Subject(s)
Animals , Male , Rats , Atherosclerosis , Blood , Drug Therapy , Metabolism , Cholesterol , Metabolism , Diet, Atherogenic , Lipids , Blood , Random Allocation , Rats, Sprague-Dawley , gamma-Linolenic AcidABSTRACT
AIM: To study caspase-9 expression on rat retina in the process of chronic elevation of IOP and the changes with the application of amino guanidine (AG), thus to investigate potential protective function of AG to rat retina with chronic elevation of IOP.METHODS: Immunohistochemistry, RT-PCR and Western blot were used to observe retinal morphology and expression of caspase-9 at different time points of rat with chronic IOP elevation, both affected or not affected by the application of AG.RESULTS: Compared with control group, as time passed retina of experimental group gradually had detectable morphological changes. On 21st day of chronic IOP elevation, retinas became thinner and the quantity of retinal ganglion cells (RGCs) decreased; caspase-9 expression increased, consistent with the morphological changes. The group using AG presented relatively smaller morphology changes and less expression of caspase-9.CONCLUSION: Apoptosis-related gene caspase-9 played a part in the process of chronic IOP elevation; AG protects retina by down-regulating expression of caspase-9.
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<p><b>OBJECTIVES</b>To explore the mechanism of CBRH-7919 cell proliferation inhibition by transfecting phosphatidylethanolamine N-methyltransferase 2 gene (PEMT2).</p><p><b>METHODS</b>The effects of PEMT2 transfection on phosphorylation and translocation from cytosol to plasma membrane of PLC gamma 1 in cells were studied using SDS-PAGE and Western blot techniques. The phosphorylation and activity of c-Met were determined.</p><p><b>RESULTS</b>After transfection of pemt2, the PLC gamma 1 and phosphorylated PLC gamma 1 conjugated with plasma membrane were decreased by 45% and 27% of that of control cells respectively, and the phosphorylated c-Met was decreased to 32% of that of control cells.</p><p><b>CONCLUSION</b>Transfection of phosphatidylethanolamine N-methyltransferase 2 gene can inhibit the phosphorylation and translocation from cytosol to plasma membrane of PLC gamma 1 in cells. At the same time, the autophosphorylation of c-Met was decreased, which suggests that transfection of phosphatidylethanolamine N-methyltransferase 2 gene can downregulate the c-Met/PLC gamma 1 signaling pathway in CBRH-7919 cells.</p>