2.Gene mutation and clinical feature of 10 patients with spinocerebellar ataxia type 2 and type 3
Xiao-Ning ZHANG ; Jing LEI ; Jian-Hua MA ;
Chinese Journal of Neurology 2000;0(04):-
Objective To investigate clinical phenotype and the characteristics of gene mutation of patients with spinocercbellar ataxia type 2 and type 3.Methods The trinucleotide repeat mutations were detected by polymerase chain reaction (PCR),fluorescence-PCR and capillary electrophoresis in 9 patients and 43 members from 4 spinocerebellar ataxia families,1 sporadic patients,and 60 normal controls without family history.Results Six patients from 3 families and one sporadic patient had SCA3/MJD (CAG) n expansion mutation(n=68-75) ;Three patients from 1 family had SCA2 allele expansion for 37-41 times. Some of clinical menifestations were same among patients with type 2 or 3,while they showed significant difference in age of onset ,disease devetopment and nervous system injury.Conclusion The difference of clinical feature helps to distinguish SCA3/MJD and SCA2,however genotype analysis is the only method of definite diagnosis.
3.Study of the Cerebellar Hypothalamic Pathways in the Pathogenesis of Post-stroke Depression
Xiao KANG ; Rubo SUI ; Lei ZHANG ; Heji MA
Journal of China Medical University 2015;(5):389-393,399
Objective To preliminarily proved that the cerebellar hypothalamic pathways regulate inflammatory cytokines involved in post?stroke depression(post?stroke depression,PSD). Methods 160 male(Sprague?Dawley,SD)rats were randomly divided into sham operation group,the stroke group,PSD group,kainic acid(kainic acid,KA)damage of cerebellar fastigial nucleus group,electrical damaged decussation of superior cer?ebellar peduncle(superior cerebellar peduncle,xSCP)group. The behavioral observation were observed and expression of IL?1βand TNF?αin hip?pocampus by immunohistochemistry. Results Compared with the sham operation group and stroke group,PSD group,TNF?α,IL?1βcontent signif?icantly increased;and the factor of rats with KA group and xSCP group expression consistent with PSD group,there was no significant difference among the three groups. Conclusion The cerebellar fastigial nuclear may through the cerebellar hypothalamic pathways regulate inflammatory cyto?kines and participate in post stroke depression.
4.Report of a case with infantile Crohn's disease.
Xiao-lei WANG ; Guo-ying ZHANG ; Hong-sheng MA
Chinese Journal of Pediatrics 2005;43(9):704-705
Crohn Disease
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pathology
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Humans
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Infant
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Male
5.Study on Dietary Pattern and Nutrition Status among Rural Residents in Midwestern Rural Area of Shandong Province
Zi-Long LU ; Ji-Xiang MA ; Xiao-Lei GUO
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(06):-
Objective To determine the dietary nutritional status of rural residents in Midwestern Shandong Province,in order to improve the dietary pattern and health status of them.Method 11 987 residents,from 10 273 households,were included in this study by multi-stage randomized cluster sampling in 8 counties located in Midwestern Shandong Province.Questionnaire of Food Frequency (QFF) was applied to collect the information about the amount and frequency of food consumed by the subjects in the past year.Results The average intake of cereal,vegetable,fruit,meat,egg,milk,bean,oil and salt per reference man per day was 553.9 g,310.6 g,58.2 g, 36.3 g,50.1 g,16.7 g,34.4 g,44.8 g and 12.3 g,respectively.The average intake of energy,carbohydrate,protein,fat and dietary fiber per reference man per day was 12 095.6 kJ,451.8 g,85.6 g,78.8 g and 18.7 g as well Cereal food provides 66.1% of total energy; however,the meat provides only 6.6% of that.Carbohydrate,protein and fat amount to around 63.2%,12.0% and 24.8% of total energy, respectively.24.0% of fat intake was from animal food,while 76% of that was from vegetable food.Conclusions The intake of energy, protein,fat was sufficient for these subjects;however,the intake of vegetable,fruit,bean and meat was lower than the dietary reference intake.Moreover,oil and salt intake in these subjects was much higher than Chinese Recommended Nutrient Intakes.Thus,the amelioration of dietary pattern in rural residents will be an important task for nutrition workers in rural area of Midwestern part of Shandong Province in the future.
7.Application of percutaneous nephroscopy in the treatment of upper urinary tract carcinoma
Bo XIAO ; Chunlei XIAO ; Lulin MA ; Shudong ZHANG ; Xiaofei HOU ; Lei ZHAO ; Jian LU
Chinese Journal of Urology 2011;32(6):383-386
Objective To evaluate the application of percutaneous nephroscopy in the treatment of upper urinary tract transitional cell carcinoma, particularly renal pelvic carcinoma. Methods From June 2006 to June 2010, eight cases (with 10 sides) of renal pelvic carcinoma received percutaneous nephroscopy tumor resection. There were six males (with 7 sides) and two females (with 3 sides) in the study group. There were six cases with solitary kidney and two cases with bilateral renal pelvic tumors. There were four cases with high-grade tumors and six cases with low-grade tumors. The age of patients ranged from 52 to 72 yrs (average 61.2 yrs). Tumor sizes ranged from 0.5 to 3.5 cm (average 2.6 cm). Patients were treated with laser or electrocautery through percutaneous nephroscopy. A ureteral stent was placed in the patients after the procedure. Chemotherapy was administered postoperatively through the nephrostomy tube. Results All the operations were successfully completed uneventfully. The operative time was 45-95 min (average 73 min), estimated blood loss was 20-300 ml (average 50 ml). No remarkable differences were found in serum creatinine levels before and after operation. After 10 to 36 mon. follow-up by CT, MRI, and ureteroscopy, one patient died of tumor metastasis and two patients had local tumor recurrence. The remaining patients had no local recurrence. Conclusions Percutaneous nephroscopy in treating renal pelvic tumor is safe and feasible. This is a better choice for the renal pelvic carcinoma patients who are unsuitable for ureteronephrectomy.
8.Laparoscapic radical cystectomy with Studer orthotopic ileal neobladder
Lulin MA ; Lei LIU ; Chunlei XIAO ; Xiaojun TIAN ; Xiaofei HOU ; Guoliang WANG ; Shudong ZHANG ; Lei ZHAO ; Yi HUANG
Chinese Journal of Urology 2009;30(4):251-253
Objective To discuss the technique of laparoscopie radical cystectomy with Studer orthotopic ileal neobladder. Methods Eight men with bladder cancer who were indicated for radical surgery underwent laparoscopic cysteetomy with Studer orthotopic ileal neobladder. The ages were be-tween 51 and 69 with the mean age was 57 years. Seven cases were transitional cell carcinoma and 1 case was adenocarcinoma. A 5-port approach was employed. The first step was the bilateral pevic lymphadenectomiy including obturator lymph nodes, internal and external iliac lymph nodes. Then ventral surface of the bladder was mobilized and the bilateral endopelvic fascia was incised. Next step included the stich of dorsal vein complex and dissection of both the vas deferens and seminal vesicles. Denonvillier's fascia was incised to develop the plane between the rectum and the prostate. The urethra located in the prostatic apex was divided and transected thereby completely separating the specimen. Then the specimen was placed in a packet. Finally, a 6-8 cm lower median abdominal incision was performed, through which the specimen was extracted. Construction of the Studer pouch. A portion of terminal ileum about 45cm long was isolated approximately 20cm proximal to the ileocecal valve. The ends of the isolated ileal segment were closed to restore the bowel continuity. The distal 40 cm segment of ileum was placed in a U shape and opened along the antimesenteric border. The two medial borders were then oversewn and the bottom was folded over to form a neobladder. The ureters were anastomosed to the nonineised 5 cm portion of ileum. Finally, the neobladder was put into the abdomi-nal cavity and the anastomosis between the neck of the neobladder and the end of the remaining ure-theral was performed with interrupted suture. Results All the procedures were successful. The time of the operation was 6-8 h with the mean estimated blood loss 420(200-800)ml. Complication included 1 case of right ureteral indigitation in neobladder. The postoperative histopathology revealed 7 cases of pT2 and 1 cases of pT3. No positive margin was found. The follow-up (3 - 12 months) showed no recurrence. Conclusions The technique of laparoseopic radical cystectomy is feasible with the advantages of smaller incision and less blood loss. Studer orthotopic ileal neobladder has the ad-vantages of simple skill, antireflux, better postoperative urination.
9.Optimization of experimental parameters for quantitative NMR (qNMR) and its application in quantitative analysis of traditional Chinese medicines.
Xiao-Li MA ; Ping-Ping ZOU ; Wei LEI ; Peng-Fei TU ; Yong JIANG
Acta Pharmaceutica Sinica 2014;49(9):1248-1257
Quantitative NMR (qNMR) is a technology based on the principle of NMR. This technology does not need the references of the determined components, which supplies a solution for the problem of reference scarcity in the quantitative analysis of traditional Chinese medicines. Moreover, this technology has the advantages of easy operation, non-destructiveness for the determined sample, high accuracy and repeatability, in comparison with HPLC, LC-MS and GC-MS. NMR technology has achieved quantum leap in sensitivity and accuracy with the development of NMR hardware. In addition, the choice of appropriate experimental parameters of the pre-treatment and measurement procedure as well as the post-acquisition processing is also important for obtaining high-quality and reproducible NMR spectra. This review summarizes the principle of qHNMR, the various experimental parameters affecting the accuracy and the precision of qHNMR, such as signal to noise ratio, relaxation delay, pulse width, acquisition time, window function, phase correction and baseline correction, and their corresponding optimized methods. Moreover, the application of qHNMR in the fields of quantitation of single or multi-components of traditional Chinese medicines, the purity detection of references, and the quality analysis of foods has been discussed. In addition, the existing questions and the future application prospects of qNMR in natural product areas are also presented.
Biological Products
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chemistry
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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Magnetic Resonance Spectroscopy
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methods
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Medicine, Chinese Traditional
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Reproducibility of Results
10.Effect of hydrogen sulfide on oxidative stress and endoplasmic reticulum stress in diabetic cardiomyopathy.
Rui YANG ; Qiang JIA ; Xiao-fen LIU ; Qin GAO ; Lei WANG ; Shan-feng MA
Chinese Journal of Applied Physiology 2016;32(1):8-12
OBJECTIVETo investigate the effects of hydrogen sulfide (H₂S) on oxidative stress and endoplasmic reticulum stress (ERS) in a rat model of diabetic cardiomyopathy (DCM).
METHODSThirty male SD rats were randomly divided into control group, diabetes group and treatment group( n = 10). Intraperitoneal injection of streptozotocin was utilized to establish a rat model of DCM. The rats with DCM in treatment group were intraperitoneally injected with NaHS solution. After treated for 12 weeks, the hearts isolated from rats were perfused on a langendorff apparatus. The ventricular hemodynamic parameters were measured. The ultrastructures of myocardium were observed using electron microscopy. The content of malondialdehyde (MDA), the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in myocardial tissue were determined by spectrophotometry. The expressions of C/EBP homologous protein( CHOP), glucose-regulated protein 78 (GRP78) and Caspase 12 at mRNA level in myocardium were detected using RT-PCR.
RESULTSCompared with control group, the cardiac function and myocardial ultrastructure were damaged obviously in diabetic rats. In myocardial tissue, the content of MDA was increased, while the activities of SOD and GSH-Px were decreased. CHOP, GRP78 and Caspase 12 mRNA expressions were increased significantly. Compared with diabetes group, cardiac function and myocardial ultrastructure damage were improved in treatment group. The content of MDA was decreased, while the activities of SOD and GSH-Px were increased significantly. The mRNA levels of CHOP, GRP78 and Caspase 12 were increased.
CONCLUSIONH2S can protect myocardium in diabetic rats, maybe it is related to reduce oxidative stress damage and inhibition of the ERS-induced apoptosis pathway.
Animals ; Apoptosis ; Caspase 12 ; metabolism ; Diabetes Mellitus, Experimental ; drug therapy ; Diabetic Cardiomyopathies ; drug therapy ; Endoplasmic Reticulum Stress ; Glutathione Peroxidase ; metabolism ; Heat-Shock Proteins ; metabolism ; Hydrogen Sulfide ; pharmacology ; Male ; Malondialdehyde ; metabolism ; Myocardium ; ultrastructure ; Oxidative Stress ; Rats ; Streptozocin ; Superoxide Dismutase ; metabolism ; Transcription Factor CHOP ; metabolism