1.Sequence anlysis of rDNA of Anisakid nematodes with zoonotic potential from Taiwan strait
Shaolei ZHANG ; Shisan XU ; Damin LUO
Chinese Journal of Zoonoses 2009;(7):660-664
To analyze the rDNA sequence of the Anisakid nematodes with zoonotic potential from Taiwan straits, Anisakid nematodes were obtained from the gut of marine fish and identified chiefly based on the morphological characteristics. The genomic DNA of nematodes were extracted, and the sequence of rDNA ITS were amplified by PCR using universal primers, then cloned and sequenced bidirectionally. Sequences analysis was conducted by blasting database and software DNAMAN. Results of the blasting database showed that no match could be demonstrated in 3 of 6 rDNA sequences obtained from 6 different nematode species;the new sequences were submitted to the database and the accession numbers in GenBank were obtained. The relationship between adult Contracaecum muraenesoxi and its putative third stage larva was validated by molecular evidences. Sequences relationship based on the inner similarity of the internal transcribed spacer sequences was constructed. It was found that the phylogenetic informative loci were mainly gathered in the second internal transcribed spacer(ITS2) for these anisakid nematodes because of the ITS2 has higher transition ratio than that of the ITS1. It is evident that the sequence in this region could provide valuable information for the molecular distinction of anisakid nematodes with zoonotic potential from Taiwan straits.
2.Experimental and clinical study on effect of endovascular dilation on symptomatic cerebral vasospasm
Zhongsong SHI ; Yuewei ZHANG ; Zhengsong HUANG ; Tiewei QI ; Shaolei GUO
Chinese Journal of Cerebrovascular Diseases 2004;1(7):320-325
Objective To undertake animal experimentation and clinical study on the safety and efficacy of percutaneous transluminal angioplasty (PTA) and intraarterial papaverine (IAP) infusion for treatment of refractory symptomatic cerebral vasospasm (CVS). Methods In the experimental study, vasospasm was induced in rabbits by double injections of blood into the cisterna magna, IAP infusion was given on either the 4th day or the 7th day after occurrence of subarachnoid hemorrhage (SAH), and then neurological observation, angiography, light and electron microscopy were done. In the clinical study, since September 1996, 22 patients with refractory symptomatic CVS involving 50 vascular territories received dilation therapy by PTA and IAP within 24 hours of clinical neurological deterioration. Results In the experimental study, all the rabbits except two in the 'the 4th day' group showed angiographic dilation in all of the spastic basilar arteries, and neurological improvement; in the ' the 7th day' group angiographic dilation appeared in 4 (57. 1% ) out of 7 rabbits. After 24 hours, 1 rabbit in each group had recurrence of neurological deficits and angiographic constriction. In the clinical study after aneurysm clipping or endovascular coil embolization was done, within 72 hours of SAH all patients underwent endovascular treatment: PTA alone in 3 cases, IAP alone in 14 cases, PTA and IAP in the remaining 5 cases. All vessel segments were dilated satisfactorily after endovascular treatment. Clinical improvement was significant in 13 cases,moderate in 7, minimal or none in 2; 2 cases died on the 7th day after endovascular dilation treatment. Conclusion Endovascular dilating techniques, namely, PTA, IAP and a combination of PTA and IAP, are safe and effective for treatment of symptomatic CVS refractory to medical therapy.
3.The clinical features and treatment ofBrucellosis disease in 24 children
Rui FAN ; Shaolei YUE ; Yijun ZHANG ; Feng WANG
Journal of Clinical Pediatrics 2016;34(10):744-746
Objective To investigate the clinical features and treatment ofBrucellosis disease in children in recent years.Methods The clinical data of 24 children withBrucellosis disease admitted during January 2011 to December 2015 were retrospectively analyzed.Results In 24 children, 18 was male and 6 was female and average age was 9.8±3.13 years (4-14 years). Twenty-four children were diagnosed withBrucellosis disease by positive tiger red plate agglutination tests and their antibody titer was 1:800-1:100. The children lived mainly in the pastoral areas; four cases (16.67%) had sick family members and cattle and sheep; three cases (12.5%) had histoty of contact only with sick family members; 12 cases (50.00%) had cattle and sheep exposure history; 3 cases (12.5%) had raised cattle or sheep at home in the past 2 years; 2 cases (8.33%) had not have clear transmission route. The onset of the disease occurred year round, with the highest incidence in June and July. The common clinical symptoms were fever, arthralgia, weak, sweat, and anorexia, combined with hepatomegaly and splenomegaly. Patients younger than 8 years old were treated with rifampin and sulfamethoxazole. Patients equal to or older than 8 years old were treated with doxycycline and rifampin. Twenty-three children had been cured after treatment. Only one child stopped taking the drugs 3 weeks after discharge, which resulted in recurrence.Conclusion For children living in pasturing area suffered with unexplained recurrent fever, brucellosis disease should be considered and ruled out.
4.The combination study of Qidan Decoction on inhibiting gastric cancer metastasis
Shaolei YU ; Yu CAI ; Xiaozhen FENG ; Ronghua ZHANG
Chinese Traditional Patent Medicine 1992;0(04):-
AIM:To study the rationality and the best dosage of Qidan Decoction (Radix Astragali,Radix et Rhizoma Salviae miltiorrhizae,Fructus Psoraleae,etc.) on inhibiting gastric cancer metastasis. METHODS:The ability of inhibiting gastric cancer metastasis and the activity of NK cell were detected as indexes to appraise the rational and the best dosage. RESULTS:The function of Astragalus membranaceus,Salvia miltiorrhiza.Ege.,psoralea corylifolia and Lycium Barbarum on inhibiting gastric cancer metastasis and rising the activity of NK cell was significant(P
5.Glycogen phosphorylase isoenzyme BB in the diagnosis of acute myocardial infarction in early stage
Zhaolun ZHOU ; Shaolei WEN ; Zhaoyan XU ; Xili YANG ; Jianyu ZHANG ; Changhua XIAO
Chinese Journal of Postgraduates of Medicine 2008;31(19):23-26
Objective To evaluate the value of glycogen phosphorylase isoenzyme BB (GPBB) in the diagnosis of early acute myocardial infarction (AMI). Methods The plasma levels of GPBB were mea-sured by sandwich ELISA in 115 patients with suspected AMI at admission within 6 hours after onset of chest pain and 55 normal healthy subjects. The plasma concent of cardiac troponin-Ⅰ (cTnI), creatine kinase-MB (CK-MB) and myoglobin (MYO) was assayed at the same time by using corpuscle chemiluminescence. The patients were classified retrospectively into AMI group (n = 45) , unstable angina pectoris (UAP) group (n =40) , stable angina pectoris (SAP) group (n = 13) and non-cardiac chest pain (NCCP) group (n =17).The diagnostic validity was evaluated in terms of sensitivity and specificity. Results The diagnostic sensitivity of GPBB for AMI was 64.29 % within 3 hours and 88.89 % within 6 hours after onset of chest pain,which is significantly higher than that of cTnI (28.57 %, 60.00 %) and CK-MB (21.43 %, 64.44 % ). There was no significant difference in specificity among the four markers. The diagnostic accuracy of GPBB within 3hours and 6 hours (80.77 %, 89.57% ) was significantly higher than that of cTnI (61.54%, 81.74% ),CK-MB (50.00%, 75.65%) and MYO (73.08% ,73.91%). Conclusions GPBB seems to be a sensitive and specific biochemical cardiac marker for AMI in the early stage. Its diagnostic accuracy is higher than that of cTnI, CK-MB, MYO.
6.Prognostic value of lung ground glass opacities volume ratio in patients with acute paraquat poisoning
Liangliang LIU ; Shaolei CHEN ; Yin ZHANG ; Xianglong CAI ; Xin YU ; Guoqiang LI
Chinese Journal of Emergency Medicine 2021;30(1):79-84
Objective:By comparing the volume% (V% GGOs) of ground glass opacities (GGOs) in high resolution CT (HRCT) of patients with acute paraquat (PQ) poisoning at different time points, its value in the early prognosis of patients with PQ poisoning was analyzed. Methods:The data of patients with PQ poisoning admitted to Department of Respiratory and Critical Care Medicine of Chinese Armed Police Forces from June 2017 to December 2018 were prospectively analyzed. According to the follow-up results after poisoning at 90 days, the patients were divided into the survival group and death group. Three-dimensional reconstruction technology was used to calculate the change of V% GGOs on the 3rd, 5th, and 7th day after poisoning. Chi-square test and One-Way ANOVA of variance were used to compare sex, age, and time of poisoning between the two groups. The Student's t test was used to compare V% GGOs between the two groups at different time points. The receiver operating characteristic curve (ROC) was used to determine the guiding significance of the indicator on the prognosis of patients with PQ poisoning at different time points. Results:A total of 89 patients with PQ poisoning were included in the study, 49 in the survival group and 40 in the death group. There were no statistical differences between the two groups of patients in sex, age, poisoning time, oxygenation index, mean arterial pressure, total bilirubin, blood urea nitrogen, alanine aminotransferase, and aspartate aminotransferase at admission (all P>0.05). The blood PQ concentration (mg/L) in the death group was significantly higher than that in the survival group (6.35 ±0.51 vs 3.49 ±0.21, P= 0.013). On the 3rd, 5th and 7th day after admission, the V% GGOs was significantly higher than that in the survival group (3rd day: 0.062±0.020 vs 0.049±0.007, P= 0.013; 5th day: 0.292±0.130 vs 0.123±0.044, P<0.01; 7th day: 0.334±0.116 vs 0.138±0.034, P=0.019). The area under the ROC curve showed that the prognosis AUC of the 7th day V% GGOs after poisoning was 0.967, the sensitivity was 100% and the specificity was 83.33% when the threshold was 0.16, but the time point was late. On the 5th day after poisoning, the V% GGOs judged the prognosis AUC was 0.842, the sensitivity was 82.35% and the specificity was 89.47% when the threshold was 0.14. On the 3rd day after poisoning, the V% GGOs judged the prognosis AUC was 0.708, the sensitivity was 55.00% and the specificity was 78.95% when the threshold was 0.05. At this time, the sensitivity and specificity were lower than those on the 5th and 7th day. Conclusions:The proportion of ground glass opacity volume in patients with PQ poisoning can be used to evaluate their prognosis, and the best time point is the 5th day after poisoning.
8.Modified ( narrowed ) gastric tube and establishment of enteral feeding pathway in surgery of esophageal carcinoma (esophagectomy)
Yuan FENG ; Nan WU ; Shi YAN ; Jinfeng CHEN ; Qingfeng ZHENG ; Chao Lü ; Yuzhao WANG ; Shaolei LI ; Lijian ZHANG ; Jiafu JI ; Yue YANG
Chinese Journal of Clinical Nutrition 2011;19(6):377-382
ObjectiveTo describe the modified (narrowed) gastric tube and two methods on the establishmentof enteral feeding pathway in esophagectomy.MethodsFrom July 2003 to April 2006,we made traditional gastric tube for patients underwent esophagectomy to substitute the dissected esophagus while from May 2006 to November 2009,we made modified gastric tube for the same purpose.From July 2003 to November 2009,enteral nutrition tubes for all these patients are placed intraoperatively by two different ways,which made early post-operative nutrition support possible for these patients.ResultsNo perioperative death occurred among the patients.The length of the modified gastric tube ensured the anastomosis by circular stapler at the apex thorax or in the bases of cervical region.No statistical differences were found between the two group in terms of survival rate.The intraoperative establishment of enteral nutrition pathway ensured the early enteral nutrition support after the operation.ConclusionThe utility of the modified gastric tube extends the length of gastric tube to make mechanical anastomose easier and safer; meanwhile,the intraoperative establishment of enteral nutrition pathway ensures the early enteral nutrition support after the operation.
9.Advances of mass spectrometry research in the diagnosis and therapy for diabetics nephropathy
Shaolei ZHANG ; Dongwei LIU ; Zhangsuo LIU
Chinese Journal of Laboratory Medicine 2020;43(10):1044-1049
Diabetes kidney disease (DKD) is a serious renal complication of diabetes mellitus, also the main cause of end-stage renal disease (ESRD). Early diagnosis and treatment are very important. Mass spectrometry (MS) can detect biomarkers in blood, urine, tissue and other samples of DKD patients, which has become a research hotspot, and its great significance in early diagnosis, pathogenic research, treatment effect and prognostic evaluation.
10.AMD3100 decreasing angiogenesis in rat models of cerebral chronic hypoperfusion by blocking SDF-1/CXCR4 pathway
Lingyan WANG ; Heng ZHANG ; Shaolei GUO ; Zhengsong HUANG
Chinese Journal of Neuromedicine 2015;14(8):764-769
Objective To observe the effect of ADM3100 on angiogenesis in rat models of cerebral chronic hypoperfusion (CCH) and its mechanism.Methods Thirty-six healthy female SD rats,weighting 200-250 g,were randomly divided in normal control group,CCH+AMD3100 group and CCH+saline group (n=12);rats in the CCH+AMD3100 group and CCH+saline group underwent end-to-side anastomosis between the left distal external jugular vein (EJV) and the ipsilateral common carotid artery,followed by ligation of the right vein draining the transverse sinus and bilateral external carotid arteries,and then,they were received intraperitoneal injection of 5 mg/ (kg·d) ADM3100 and physiological saline,respectively,for a consecutive 30 d.Rats were then scarified;microvessel density (MVD) was assessed based on immunohistochemistry of CD34,numbers of CXCR4 and CD45 double positive cells were confirmed by double immunofluorescence,and matrix metalloproteinases-9 (MMP-9) was evaluated by Western blotting.Results MVD was 61.82±19.83/mm2,89.50±23.61/mm2 and 121.70 ±31.12/mm2 in the normal control group,CCH+AMD3100 group and CCH+saline group,respectively;numbers of CXCR4 and CD45 double positive cells were 3.47±2.63,7.58±4.49 and 12.33± 6.11 per high power field (×200) in normal control group,CCH+AMD3100 group and CCH+saline group,respectively;significant differences between groups were noted (P<0.05).As compared with the expression of MMP-9 in the normal control group,that in the CCH+AMD3100 group and CCH+saline group was significantly increased (0.009±0.003,0.151 ±0.058 and 0.325 ±0.068,P<0.05).As compared with CCH+saline group,CCH+AMD3100 group had significantly smaller MVD and numbers of CXCR4 and CD45 double positive cells and lower MMP-9 level (P<0.05).Conclusion AMD3100 will decrease angiogenesis in rat models of cerebral chronic hypoperfusion,which may be associated with inhibiting CXCR4+ CD45+ cells infiltration into cerebral tissue by blocking stromal cells-derived factor-1 α/CXCR4 signaling.