1.Implantation of Homologous Cancellous Bone and Autologous Red Marrow under Endoscope for Bone Nonunion and Bone Defect
Liangqi KANG ; Wei CHEN ; Lingling SHI
Chinese Journal of Minimally Invasive Surgery 2001;0(02):-
Objective To investigate the effectiveness of implantation of homologous cancellous and autologous red marrow under endoscope in the treatment of traumatic bone nonunion or bone defect.MethodsTotally 25 patients with traumatic bone nonunion or bone defect were enrolled in this study.The lesion involved the tibia bone in 9 cases,the femur in 13,and the humerus in 3.The grafts were sized 1 to 6 cm in length(mean,2.7 cm).Before the implantation of the cancellous bones,the scar fibrous tissues within the nonunion were removed completely by endoscopy,and then autologous red marrow obtained from the iliac crest was injected.ResultsAll the patients were followed up for 12 to 36 months(mean,25 months).The surgical wounds healed primarily in all of the cases without injuries to the blood vessels and nerves.Bony union was achieved within 4 to 9 months(mean,5.1 months) in 23 of the patients,the other 2 failed because of breaking and loosing of internal fixators.No patient developed re-nonunion and infection.ConclusionsImplantation of homologous cancellous and autologous red marrow under endoscope is effective for traumatic bone nonunion or bone defect with a low rate of complication and high rate of bony union.Since no need to harvest the ilium bone,the method is minimally invasive for the patients.
2.Correlations of enterobacteria DNA load in venous blood determined by real-time quantitative polymerase chain reaction with vital signs and blood cell count in febrile surgical patients
Junren KANG ; Enling MA ; Wei CHEN
Chinese Journal of Clinical Nutrition 2015;23(5):292-295
Objective To determine enterobacteria DNA load in venous blood of febrile surgical patients using real-time quantitative polymerase chain reaction (RQ-PCR), to study the correlations between DNA load and vital signs/blood cell count, and to compare the difference between different detection methods in terms of positive rates.Methods A total of 72 blood samples were obtained for bacterial cuhure and RQ-PCR.The correlations of enterobacteria DNA load with body temperature, heart rate, while blood cell count,and percentages of leukocyte and lymphocyte were then analyzed.Results The enterobacteria positive rate determined by RQ-PCR (63.89%) was significantly higher than that by bacterial culture (9.72%) (F =4.383, P =0.036).The DNA load was significantly correlated with both body temperature and heart rate (P =0.006, r =0.323;P =0.000, r =0.411), but not with white blood cell count, percentages of leukocyte and lymphocyte, and age (P=0.438, r=0.093;P=0.825, r=0.027;P=0.451, r=-0.090;P =0.096, r =0.198).Conclusions RQ-PCR can quickly determine the enterobacteria DNA load in peripheral blood with high sensitivity.Routine blood cell count may not accurately reflect the enterobacteria DNA load in blood.Body temperature and heart rate may be influenced by various factors.
3.The management of liver cancer with blood supply from parasitic vessels after transcatheter arterial chemoembolization
Changyuan WEI ; Ping KANG ; Jiansi CHEN
Chinese Journal of General Surgery 1993;0(02):-
50% was seen in 7 cases after TACE and PEI(30%),and the 1?3?5 year′s survival rate was 52%?35%? and 9%,respectively.Conclusions Adjuvant chemotherapy was hardly beneficial to the treatment of liver cancer with parasitic blood supply after TACE, while PEI enhanced effect of TACE as a supplementary therapy as judged by long term survival. The change of sIL-2R, AFP level was a sensitive indicator for the outcome of the treatment.
4.Effect of paraquat on lipid peroxidation monoamine neurotransmitter level in brain tissue of mice.
Qing CHEN ; Wei-jun KANG ; Rong ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(4):238-239
Animals
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Biogenic Monoamines
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metabolism
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Brain
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drug effects
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metabolism
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Female
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Lipid Peroxidation
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drug effects
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Male
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Mice
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Paraquat
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toxicity
5.CT and MRI imaging features of primary ventricular lymphoma
Hong LU ; Haitao LI ; Wei CHEN ; Jiafei CHEN ; Kang CHEN
Journal of Regional Anatomy and Operative Surgery 2017;26(1):55-57,58
Objective To evaluate the CT and MRI imaging features of primary ventricular lymphoma ,so as to provide a reference for the diagnosis and differential diagnosis of the disease .Methods The clinical data and imaging findings of primary ventricular lymphoma in one case was retrospectively analyzed with literature review and compared with primary lymphoma in parenchymal brain .Results Slightly high density tumor presented with regular shape in the trigone of lateral ventricles on CT findings , and slightly low signal intensity on T 1 and slightly high signal intensity on T 2 appeared on MRI findings with small cystic necrosis in tumour .An enhancement scan showed obviously enriched, and there was perilesional edema.After 14 day’s dehydration treatment, rechecked indicated that the lesions were significantly en-larged, the shape were irregula , the area of cystic necrosis was enlarged , heterogeneous enhanced scanning were enhanced , perilesional ede-ma became more heavier , and the imaging feature of “closed fist” appeared .It was proved to be diffuse large B cell lymphoma with surgical pathologic examination , and there was no lymphoma in other regions of the body with whole body PET-CT examination , which was clinically diagnosed as primary ventricular lymphoma .Conclusion Primary ventricular lymphoma is rarely reported ,and it has similar imaging mani-festations with primary lymphoma in parenchymal brain .The combination of multiple imaging modalities will be helpful to diagnosis and dif -ferential diagnosis for the suspected patients .
6. Simultaneous determination of six constituents in rukuaixiao granules by UHPLC-MS/MS
Chinese Pharmaceutical Journal 2015;50(7):629-633
OBJECTIVE: To establish a UHPLC-MS/MS method for simultaneous determination of tangertin, hesperetin, 5-demethylnobiletin, nobiletin, vitexin, and narirutin in Rukuaixiao granules. METHODS: The analysis method was performed on a Waters ACQUITY UPLC® BEH C
7.Screening of nutritional risk in 112 patients with inflammatory bowel disease
Yongjian GAO ; Feng ZHU ; Jiaming QIAN ; Kang YU ; Wei CHEN
Chinese Journal of Clinical Nutrition 2009;17(6):324-327
Objective To assess the nutritional risk of patients with inflammatory bowel disease (IBD).Methods The nutritional status of 112 IBD patients from PUMC Hospital were evaluated by Nutritional Risk Screening 2002 (NRS 2002).Using Chinese standard,a body mass index (BMI) that was lowered than 18.5 kg/m~2 according to clinical material was regarded as malnutrition,and the score was recorded as 3.The se-verity of ulcerative colitis (UC) was evaluated using True-Love criteria as mild,moderate,and severe.Crohn's disease (CD) was evaluated using Harvey-Bradshaw Index as in remission stage (≤4),moderately active stage (4-8),and severely actively stage (≥9).Results All these 112 patients,including 70 UC cases and 42 CD cases,were evaluated by NRS2002.Forty-five patients (40.2%) were judged as at the risk of malnutrition.The incidence of malnutrition was significantly higher in CD patients than in UC patients (52.4% vs.32.9%,P<0.05).It was also significantly correlated with the severity of disease.In patients with severe IBD,the rate of mal-nutrition evaluated by BMI according to clinical material was significantly lower than the rate of nutritional risk.Con-clusions The risk of malnutrition is high in IBD patients.NRS 2002 can be used for nutritional risk screening.
8.Peroxisome proliferator activated receptor β agonist, GW501516,ameliorates insulin resistance in glucose intolerant mouse model
Wei CHEN ; Lili WANG ; Hongying LIU ; Jianlei KANG ; Song LI
Chinese Journal of Pharmacology and Toxicology 2008;22(2):88-94
AIM The effects of GW501516, a peroxisome proliferator-activated receptor β (PPARβ) agonist, in long term diet induced obesity (DIO, high fat and maltose diet for 4 months) mice were evaluated, and the efficacy of GW501516 against insulin resistance and the involved mechanism was investigated. METHODSMice were divided into 3 groups: normal control, DIO model and DIO model+GW501516. GW501516 (10 mg·kg-1·d-1) was administered by ig once a day for 14 d. During the treatment, body weight and food intake were monitored every other day. The oral glucose tolerance test, and the serum biochemical parameters including the serum triglyceride, total cholesterol and high density lipoprotein cholesterol (HDL-C) levels were measured according to the specifications. To confirm the GW501516-mediated PPARβ activation, the mRNA levels of downstream genes related to glucose, lipid metabolism and energy expenditure was measured. RESULTS GW501516 treatment effectively improved the glucose intolerance, increased the area under the glucose curves[DIO model, (32.4±4.6) mmol·h·L-1 compared with DIO model+GW501516, (23.4±2.5) mmol·h·L-1, n=7-8, P<0.05], normalized the fasted blood glucose, and increased serum HDL-C level, besides, histological analysis revealed the decreased hepatic lipid accumulation and hypertrophy of hepatocyte in DIO mice. Moreover, RT-PCR results indicated that carnitine palmitoyltransferase 1b, uncoupling protein 2, uncoupling protein 3 and glucose transport protein 4 were all upregulated. CONCLUSIONGW501516 significantly ameliorates glucose intolerance, decreases fasted blood glucose and hepatic steatosis, which might be related to ① the enhancement of fatty acid oxidation and energy uncoupling in muscle, and ②the improvement of insulin-stimulated glucose transportation in skeletal muscle in the long term DIO mice.
9.Drug-resistant Gene of Meticillin-resistant Coagulase Negative Staphylococcus in Children Septicemia
Hongbing HU ; Wei XIA ; Shixiu KANG ; Baohua XIONG ; Qiong CHEN
Chinese Journal of Nosocomiology 2006;0(08):-
OBJECTIVE To study the distribution of drug-resistant gene of meticillin-resistant coagulase negative Staphylococcus(MRCNS) in children septicemia.METHODS The total MRCNS isolates were 40,and whether in there harbored genes mec,erm and qac was studied.RESULTS Among 40 CNS strains,in there harbored genes mec,erm,and qac were 38(95.0%),30(75.0%) and 18(45.0%),respectively.CONCLUSIONS MRCNS in children septicemia where harbor drug resistance genes is very serious,so we should pay great heed to its effective control.