1.Expression of subtilisin-like protease gene from Hirsutella sinensis before and after infecting Hepialus gonggaensis.
Zenghui LU ; Ping SHI ; Shijiang CHEN
Acta Pharmaceutica Sinica 2013;48(7):1164-8
To address the role of Pr1 gene in the process of Hirsutella sinensis infecting Hepialus gonggaensis, differential expression of subtilisin-like protease gene was detected. In the present study, Pr1 gene analogues from H. sinensis were obtained by PCR strategy using specific primers designed from conserved regions of Pr1 gene reported in the GenBank. Then we detected the changes in the expression of Pr1 gene before and after infecting H. gonggaensis using real-time quantitative PCR. We obtained the partial sequence of Pr1 gene with the length of 535 bp (GenBank accession: KC009680). Real-time PCR results showed that the expression level of Pr1 gene was significantly different among 8 samples (P < 0.01). Pr1 gene showed the obvious higher expression level (2-3 folds) after infecting the H. gonggaensis, suggesting that the Pr1 gene may play an important role in the process of H. sinensis infecting H. gonggaensis. The present study paves a way for further identification on infectivity assessment of H. sinensis.
2.Changes of ghrelin and leptin levels in patients with obstructive sleep apnea syndrome before and after treatment of continuous positive airways pressure
Chinese Journal of Practical Internal Medicine 2006;0(13):-
30,BMI≥25 kg?m -2 ),who were admitted to the hospital from Apr.2004 to Sep.2005,were induded in the study.They underwent CPAP.The PSG and leptin,ghrelin,true insulin,fasting blood glucose are measured before the treatment,and one week and six months after the treatment.Results After one week,there was a little decrease of leptin and ghrelin,and no change in true insulin and fasting blood glucose.After six months,only 16 patients improved a lot in AHI and hypoxemia.There was significant decrase of leptin and ghrelin and also a change of true insulin.Conclusion These data indicate that the elevated leptin and ghrelin levels are not determined by obesity alone,since they decrease during CPAP therapy.The glucose metabolic disturbance and insulin resistance in OSAS are improved after 6 months of CPAP therapy.Therefore,we can think that OSAS patients have metabolic disturbance of leptin and ghrelin,which is one of factors of obesity.
3.Clinical and imageological features of delayed encephalopathy caused by pituitrin
Huiling CHEN ; Jie LU ; Jingping SHI
Journal of Clinical Neurology 1997;0(06):-
Objective To investigate the clinical and imageological features of pituitrin-induced delayed encephalopathy. Methods Clinical data of 8 patients with delayed encephalopathy caused by pituitrin were analyzed retrospectively. Results All of the 8 patients presented diffent degree neuropsychic symptoms at 4~12 d after stop using the pituitrin. The extrapyramidal and psychiatric symptoms of the cases were found,such as hypermyotonia(8 cases),hypokinesia(6 cases),extremity buffeting(3 cases),emotional and behavior disorder(6 cases). The 8 cases with EEG examination showed:there were gently to midrange widespread dysfunction in 4 cases,severe widespread dysfunction in 1 case. The levels of serum Na+ in 5 cases were decrease slightly. The 8 cases with brain MRI examination showed that the abnormal signals were mainly located in lentiform nucleus and head of caudate nucleus with long T1 and T2-weighted images,and including thalamus or midbrain abnormalities signal in 1 case,respectively. Conclusions The manifestations of pituitrin-induced delayed encephalopathy are extrapyramidal symptoms and cerebral disorders. The characteristics of brain MRI are abnormal signals in lentiform nucleus and head of caudate nucleus with long T1 and T2-weighted images. The supposed pathogenesis may be nerve necrosis induced by Charcot's artery spasm and hyponatremia.
4.Roles of hepatocyte cytochrome P450 2E1 in nonalcoholic steatosis of rat liver
Lu HU ; Dongfeng CHEN ; Hongtao SHI ;
Journal of Third Military Medical University 2003;0(17):-
Objective To study the roles of hepatocyte cytochrome P450 2E1 in model of nonalcoholic steatosis in rats Methods A total of 40 Wistar rats were randomly divided into two groups: control group (C) and high fat diet induced fatty liver group (H) The expression of hepatocyte cytochrome P450 2E1 antigen in rat model of nonalcoholic steatosis was detected by immunohistochemical method and Western blotting Malondialdehyde (MDA) contents were also determined Results MDA contents and the expression of hepatocyte cytochrome P450 2E1 antigen in rat model of nonalcoholic steatosis induced by high fat diet were higher than those in the normal controls ( P
5.Value of bone marrow biopsy histopathological finding in diagnosing myelodysplastic syndrome
Jie PU ; Zhen CHEN ; Jun SHI ; Quan PU ; Daopei LU
Chongqing Medicine 2014;(3):257-259
Objective To evaluate the value of plastic-embedded bone marrow (BM ) biopsy sections in diagnosing myelodysplas-tic syndrome(MDS) .Methods HGF and Gomori stained .Glycol methacrylate(GMA) embedded BM biopsy specimens were detec-ted from 125 MDS patients with 25 cases in good health as control .Dyshematopoiesis and abnormal stroma cell responses were se-lected as main observed projects .Results Bone marrow biopsy sections gave an exact assessment of cellularity ,19 cases (15 .2% ) showed a decrease of cellularity as hypocellular MDS .66 cases(52 .8% ) of these cases did show abnormal localization of erythro-blastic clusters ,biopsy of 64(62% ) of low risk group 103 cases did show abnormal localization of immature precursors such as blasts and promyelocytes(ALIP positive) .Numeration of megakaryocytes and mast cells within 1mm2 acre of BM tissue were all much in MDS group than in control group .Gomori′s stain revealed moderate increase in reticulin fibres in 65 cases ,10 cases(8 .0% ) showed degree of myelofibrosis were + + + as hyperfibrotic MDS .Among 125 cases ,33 cases(26 .4% ) of bone marrow biopsies showed different types of erythrocytic and granulocytic immature cells with unusual intrasinusoidal bone marrow infiltration .Con-clusion It is clear that GMA embedded BM biopsy section is helpful in making diagnosis of MDS ,and has important clinical appli-cation value .
6.Distribution and drug resistance of pathogens in 132 cases of neonatal sepsis
Ting CHEN ; Qin LU ; Li YANG ; Wenjun XU ; Mingxia SHI
Journal of Clinical Pediatrics 2014;(3):220-223
Objective To investigate the distribution and antibiotic resistance of isolated pathogens in neonatal sepsis. Methods The results of blood culture and drug susceptibility test in neonates sepsis from January 2012 to June 2013 were retro-spectively analyzed. Results One hundred and thirty-two strains were detected in the blood samples, with 100(75.76%)Gram-positive bacteria, 30 (22.73%) Gram-negative bacteria and 2 (1.52%) fungus. Staphylococcus epidermidis, Escherichia coli and Staphylococcus aureus were the three most common pathogens. Gram-positive cocci was strongly resistant to penicillin (100.00%), erythromycin, selectrin and ampicillin/sulbactam (62.50%-100.00%), but still sensitive to vancomycin and teico-planin. The resistance rate of Gram-negative bacilli to ampicillin was 100.00%, and the resistance rate to cefatriaxone, selectrin and cefuroxime was 61.54%-100.00%. The resistance rate to imipenem and piperacillin/tazobactam was lower. Conclusions The selection of sensitive antibiotics should be based on the pathogens and drug resistance testing for the treatment of neonatal sepsis.
7.The Chirp Evoked Auditory Brainstem Responses in Normal -hearing Subjects
Lejuan SHI ; Jianhui YAO ; Weiyang LU ; Xiangping CHEN
Journal of Audiology and Speech Pathology 2014;(2):124-126
Objective To analyze the characteristic of auditory brainstem responses (ABR) evoked by chirp in normal hearing subjects .Methods Fifteen cases (30 ears) with normal hearing young people were recorded ABR by stimulation with two kinds of sounds :chirp and click .The data were compared .Results The response threshold of chirp-ABR were lower than that of click -ABR .The average difference was 8 .59 dB .At 90 dB nHL ,the wave V amplitude yield no significant difference between chirp -ABR and click-ABR .The wave V amplitude had a signifi-cant difference between chirp -ABR and click-ABR at 60 dB nHL .At 90 and 60 dB nHL ,the wave V amplitude of chirp-ABR had not a significant difference .The occurence rate was 40% for the wave I of chirp -ABR ,obvi-ously less than that of click -ABR .At 90 dB nHL ,the wave V latency of chirp -ABR was shorter than that of click-ABR .Conclusion The wave V response threshold of chirp -ABR is less than that of the click -ABR .The chirp-ABR is more advantageous than the click -ABR for assessing hearing threshold .
8.Stady on the clinical characteristics of 10 patients with idiopathic cytopenia of undetermined significance
Jie PU ; Jun SHI ; Zhen CHEN ; Daopei LU ; Quan PU
Chongqing Medicine 2014;(21):2698-2700
Objective To analyze the clinical and pathologic features in patients with ldiopathic cytopenia of undetermined signif-icance (ICUS) ,and provide the diagnostic basis .Methods 10 ICUS patients who did not fulfil minimal diagnostic criteria for MDS but suffered from constant (>6 months) progressive cytopenia ,with no marked dysplasia (<10% in three-major cell lineages) and abnormal karyotype were reported .Results 2 of 10 patients transited to MDS ,bone marrow review showed that ≥2 cells appeared diagnostic pathology development .Karyotype analysis showed that 1 case was still normal ,1 case lost a normal chromosome 20 (20q-) ,the rest 8 cases had been efollowed up for 6 to 25 months and still maintain ICUS .Conclusion Patients with MDS who fail to meet the diagnostic criteria of ICUS ,must carry out regular follow-up .There are some patients can transition to public MDS after a certain incubation period ,in fact it is Pre-MDS or MDS-early before ,which shows that ICUS should cause clinical attention ,so that avoid missed diagnosis .
9.XCT790 inhibits rat vascular smooth muscle cells proliferation through down-regulating the expression of estrogen-related receptor alpha.
Yunhong LU ; Qunyi LI ; Li CHEN ; Xiaojin SHI
Acta Pharmaceutica Sinica 2014;49(2):190-7
Abnormal proliferation of vascular smooth muscle cells (VSMCs) plays an important role in several pathological processes of cardiovascular diseases. In this study, the effects of XCT790, a potent and selective inverse agonist of estrogen-related receptor alpha (ERRalpha), on rat VSMCs proliferation and related signal pathways were investigated. The proliferative activity of VSMCs was determined by CCK-8 assay. The mRNA levels of ERRalpha, PGC-1alpha, OPN and MCAD were assayed by RT-PCR. The protein levels of ERRalpha, ERK2 and p-ERK1/2 were evaluated by Western blotting. ELISA was used to assess the protein expression of VEGF. The results showed that XCT790 (5-20 micromol x L(-1)) inhibited rat VSMCs proliferation, and the expression of ERRalpha and its target genes, as well as p-ERK1/2, were also inhibited. XCT790 inhibited VSMCs proliferation in a dose-dependent manner at the dose range from 5 to 20 micromol x L(-1) and in a time-dependent manner at the dose range from 10 to 20 micromol x L(-1). These findings demonstrate that XCT790 inhibits rat VSMCs proliferation by down-regulating the gene level of ERRalpha and thus inhibiting the ERK signal pathway, suggesting that ERRalpha may be a novel potential target for therapeutic approaches to inhibit VSMCs proliferation, which plays an important role in several cardiovascular diseases.
10.Psychological rehabilitation of paraplegic patients with spinal fracture
Youguo HAO ; Weiwei LU ; Haiyan SHI ; Xu LI ; Kang CHEN
Chinese Journal of Physical Medicine and Rehabilitation 2014;36(6):437-439
Objective To study the effects of psychological rehabilitation in the treatment of paraplegic patients with spinal cord injury (SCI).Methods A hundred paraplegic spinal fracture survivors were divided into a research group and a control group with 50 cases in each.Systematic rehabilitation was given to the patients in the control group,while this was combined with individualized psychological rehabilitation protocols for the patients in the research group.The daily treatment lasted 10 weeks,6 days a week.All of the patients were assessed with the Barthel index (BI),a functional independence measure (FIM),the Hamilton depression scale (HAMD) and the Hamilton anxiety scale (HAMA) pre-treatment and post-treatment.Results Before the intervention there was no significant difference between the 2 groups in any of the assessments.After ten weeks the average BI,FIM,HAMD and HAMA results in the research group were significantly better than those pre-treatment and also significantly better than those in the control group.Conclusions Psychological rehabilitation can distinctly improve the functioning and psychological state of paraplegic patients after SCI.