1.Neuroendocrine-immunoregulatory network and diseases
Chinese Journal of Pathophysiology 2000;0(08):-
A Review] The neuroendocrine-immunoregulatory network is fundamental to the maintenance of homeostasis. In this article, the authors present an overview of the role of neuroimmunoregulatory mechanism in the occurance and development of some diseases, which may have important therapeutic implication for the clinics.
3.The clinical application of CT virtual colography
Xu SUN ; Wei LU ; Dianhui ZHAO
Chinese Journal of Digestion 1996;0(05):-
Objective To investigate the value of virtual colonoscopy in the diagnosis of malignant and benign lesions in the colon. Methods CT colography was performed in 37 patients. Patients included 20 cases colon polyps, 6 cases colon cancer, 4 cases diverticulum, 5 cases ulcerative colitis and 2 cases other benign lesions. The colon lesions were evaluated with 2D and 3D images, depending on individual software. Results were compared with colonoscopy for each case. Results 17 cases colon polyps, 6 cases colon cancer, 4 cases diverticulum, 2 cases ulcerative colitis were detected by CTC. Conclusion CT virtual colography is a promising technique for the detection of colorectal lesions. This procedure is minimal invasive and fast, causes mild patient discomfort.
4.Comparison of the effect of various herniorraphy in inguinal hernia
Dinghua ZHOU ; Bing WEI ; Wei LU ; Zhengyuan WANG ; Qiang SUN
Chinese Journal of General Surgery 2000;0(11):-
Objective To evaluate the effect of various herniorraphy in treating inguinal hernia. Methods The clinical data of 108 patients who underwent conventional Bassini herniorraphy (BH), tension free herniorraphy (TH), or laparoscopic herniorraphy (LH),respectively were analysed and comparated. Results The operation time in TH was less than that in BH, and in LH was longer than that in TH. The ability recovery, hospita stay and postoperative complication in TH and LH were less than those in BH.All the patients were followed up for at least 1 year.Of them, 1 recurred after BH, but there was no recurrence after TH and LH. The blood neutrophils, serum level of fibrin, C-reactive protein and alpha-1 antitrypsin increased significantly in the patients undergoing herniorraphy, which were significantly higher in the patients underwent TH and LH. Conclusions The curative effect of TH and LH is much better than that of BH in treating ingumal hernia. Application of marlex for herniorraphy might increase inflammation response, but it will not increase the incidence of infection.
5.Clinical Features and Therapeutic Effects of Vestibular Paroxysmia
Zibo ZHAO ; Shuping SUN ; Kaihui FAN ; Wei LU
Journal of Audiology and Speech Pathology 2016;24(3):231-235
Objective To investigate the clinical features and the therapeutic effects in patients with vestibu-lar paroxysmia(VP) .Methods A total of 32 patients with VP were analyzed retrospectively through pure -tone au-diometry (PTA) ,auditory brainstem response(ABR) ,magnetic resonance imaging (MRI) ,and vestibular function . The effects were assessed after 3 months treatment of carbamazepine (CBZ) or oxcarbazepine (OXA) .Results The main clinical symptom of 32 patients was a brief spell of vertigo ,and 75% of patient's attacks were regularly precipi-tated by certain head positions or position changes .The most common accompanying symptom was unsteadiness of stance or gait (75 .00% ) .The PTA thresholds were elevated in 11 patients (34 .38% ) .MRI in all patients showed neurovascular cross -compression(NVCC) .Among 30 patients who performed ABR tests ,24 (80 .00% ) were ab-normal and 19 patients (63 .33% )were found that the interpeak latency (IPL) of wave I-III( IPL I-III) prolonged more than 2 .2 ms .The course of the patients with IPL I -III prolonged was relatively longer (P=0 .231) ,but there was no significantly difference .All patients received carbamazepine (CBZ) or oxcarbazepine (OXA) for one month .One case was lost to follow -up ,4 had no symptom improvement and 27 had a significant reduction in the attack frequency and intensity respectively after treatment of one month ,two months ,three months and 6 months of the drug withdrawal ,compared with the previous (P<0 .05) .The level of vertigo was significantly improved(P<0 .05) .Conclusion Episodic spells of vertigo are the main clinical symptom of VP ,regularly caused by certain head positions or position changes .The NVCC can be found by MRI in all patients .The IPL I -III in ABR was pro-longed in most patients ,some of them have hearing loss .CBZ and OXA are effective with VP and also significant in the experimental treatment of diagnosis .
6.Construction of recombinant eukaryotic expression plasmid containing 1.3-fold-overlength genome of HBV and its expression in Huh7 cells
Renfei LU ; Yueping WU ; Wei SUN ; Jing BAO
The Journal of Practical Medicine 2015;(7):1075-1078
Objective To construct 1.3-fold-overlength infectious clone of hepatitis B virus isolated from Chinese patients , observe the expression of plasmid in Huh7 of liver cancer cells and establish genome of HBV in vitro. Methods HBV DNA in serum was extracted from HBV patient. SOE-PCR was performed to produce a 1.3-fold-overlength genome of HBV. The plasmid was named pHBV1.3 (C). After that,pHBV1.3 (C) was transfected into Huh7 cells, HBV related viral antigens and DNA were detected by ELISA,Western Blot and Fluorescence quantitative PCR. Furthermore, adefovir dipivoxil, a clinic anti-viral drug, was utilized to test the sensitivity of the new infectious clone. Results An infectious clone of pHBV1.3 (C) was successfully constructed. HBV gene carried in pHBV1.3 (C) could be efficiently replicated and expressed in Huh7 cells. Adefovir could inhibit HBV replication in this HBV cell model. Conclusions A recombinant plasmid containing 1.3-fold-overlength of HBV genotype C was successfully constructed. This construct is competent to support viral transcription and replication in vitro , suggesting that infectious cells are expected to be a new model of HBV infection in vitro.
7.Clinical Features and Treatment of Tympanic Membrane Atelectasis
Xiaozheng SHA ; Shuping SUN ; Wei LU ; Bin ZUO ; Jing ZHANG
Journal of Audiology and Speech Pathology 2015;(3):252-255
Objective To investigate the clinical characteristics of the tympanic membrane atelectasis and treatment methods ,and to provide a reference value for future clinical diagnosis and treatment .Methods A retro‐spective analysis of 86 patients(104 ears) with tympanic membrane atelectasis treated in our hospital from June 2011 to August 2013 .Disease severity was classified according to the erasmus classification of atelectasis by Sade ,and pre- and post -operative air -bone gaps (ABG) were compared .Results There was no statistical difference of mastoid gasification on CT scan between mild and sever tympanic membrane atelectasis (P>0 .05) .While the sta‐tistical difference was found in two groups of whether there were soft tissues in middle ear and mastoid cavity on CT scan(P<0 .05) .There was an improvement in the average ABG for all stages .Conclusion This study demonstrated that surgical intervention had a favorable effect on hearing level across all stages .The treatment of atelectatic ears should be taken and individualized .
8.Effects ofXiaotan Sanjie Decoction on Ultramicrostructure in MKN-45 Human Gastric Cancer Orthotopic Xenograft
Min YE ; Dazhi SUN ; Lijuan XIU ; Ye LU ; Pinkang WEI
Chinese Journal of Information on Traditional Chinese Medicine 2015;(9):60-62
Objective To observe the effects ofXiaotan Sanjie Decoction on ultramicrostructure in MKN-45 human gastric cancer orthotopic xenograft;To discuss its mechanism for gastric cancer. Methods MKN-45 human gastric cancer cell line was used to establish subcutaneous tumor model in nude mice as an experimental model which passed three generations of tumor source. Then OB glue was used to establish human gastric cancer orthotopic xenograft model. 40 model nude mice were divided into control group, model group (received gavage with saline),Xiaotan Sanjie Decoction group (received garage withXiaotan Sanjie Decoction) and Tegafur group (received gavage with Tegafur), 10 mice in each group. Mice in the control group were under normal diet, without medicine intervention. After 6 weeks of treatment intervention, tumor weight was detected, inhibitory rate was calculated, the ultrastructural changes of gastric cancer cells were detected through transmission electron microscopy.Results The tumor weight inXiaotan Sanjie Decoction group was significantly lower than that in control group and model group (P<0.05,P<0.01). The tumor inhibition rate was 46.2%. Under the electron microscope, MKN-45 gastric cancer cells strain changed to typical apoptosis.ConclusionXiaotan Sanjie Decoction can lead to apoptosis effects on MKN-45 human gastric cancer orthotopic xenografts. All evidences indicate that inducing apoptosis may be one of the most important mechanisms ofXiaotan Sanjie Decoction in treating gastric cancer.
9.A model-based meta-analysis to compare urate-lowering response rate of febuxostat and allopurinol in gout patient.
Yi SUN ; Liang LI ; Tianyan ZHOU ; Wei LU
Acta Pharmaceutica Sinica 2014;49(12):1674-83
This study aims to compare the urate-lowering response rate of febuxostat and allopurinol in gout patient using a model-based meta-analysis. The literature search identified 22 clinical trials of gout with a total of 43 unique treatment arms that met our inclusion criteria, and a total of 6 365 gout patients were included in the study. The response rates of allopuriol and febuxostat were characterized by Tmax model and Emax model respectively, and the effect of baseline serum uric acid (sUA) and patient type on the drug effect was tested. The results showed that allopurinol can reach an average maximum response rate of 50.8% while febuxostat can reach a 100% response rate within a very short time, and the ED50 was 34.3 mg. Covariate analysis revealed that baseline sUA has a negative effect on response rate of allopurinol, and a positive effect on the predicted ED50 of febuxostat. For patients who had shown inadequate response to prior allopurinol treatment, the average response rate was about half that of the allopurinol responder patients.
10.The determination of organic acids in urine with gas chromatography-mass spectrometry and its application in clinical diagnosis
Weihua SUN ; Yi YANG ; Di CAO ; Yi WANG ; Wei LU
Chinese Journal of Laboratory Medicine 2008;31(10):1161-1165
Objectivo To analyze urine organic acids in the urine using gas chromatography-mass spectrometry(GC/MS)for diagnosis of inherited metabolic diseases,especially for organic acids metabolic disorders.Methods 195 clinical urine samples from the patients with suspected organic acids metabolic disorders and 5 normal urine from adults were collected.After mixing some urine with intemal standards according to the concentration creatinine and adding hydroxylamine hydrochloride to mixture,the organic acids with hydroxyl group were oximated to the ketobodies.Organic acids were extracted twice with ethyl acetate and ethyl ether and derivatized with BSTFA-TMCS.An the organic acids were determined with Agilent GC/MS 6890/5973i with scan model.the mass-to-charge ratio range is 50-550 m/z,all data were nalyzed with Agilent GCMSD ChemStationG1701DA.We also investigated the linearity, accurate,precision.recovery and Carry-over by determining the internal standards in normal samples and positive organic acids in spiked control samples.Results More than one hundred kinds of organic acids in urine samples can be analyzed with this method.According to the two internal standards in normal urine samples,the minimal detection limit MMA and 2.PA was 2.5-2.8 μmol/L.Intra-and interassay coefficient of variation for MMA and 2-PA are both less than 10%.Pre-processing Interassay coefficient by sequential preparations of the same sample was 14%.The recoveries of the spiked samples were 95%-105%.Carryover analysis was less than 1%.All the parameters meet the requirement for clinical diagnosis.12 samples demonstrated positive including 6 cases of methylmalonic acidemia,1 case of propionic acidemia,3 cases of tyrosinemia Ⅰ,1 case of maple syrup urine disease and 1 cases of ketosis.Conclusions The method for the determination of organic acids in urine by GC/MS has been successfully established.It can be used for clinical screening and diagnosis for inherited genetic metabolic diseases.