1.Damage control surgery directed surgical treatment of Crohn disease.
Ning LI ; Wei-ming ZHU ; Lu-gen ZUO
Chinese Journal of Gastrointestinal Surgery 2013;16(4):308-310
Damage control surgery (DCS) has been widely used in the management of surgical patients. Crohn disease (CD) patients requiring surgery are usually severe and associated with high surgical risk, while the concept of DCS has not gained adequate attention in surgery for CD. Surgery is indicated in patients with CD to control symptoms, therefore major surgery should not be performed when the general health of the patients is not satisfactory. Use of DCS to guide surgery can reduce risk of treatment and improve clinical outcome The review is to discuss the necessity, objective, and methods of damage control surgery in the surgical treatment of Crohn disease.
Crohn Disease
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surgery
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Humans
3.Surgical management of early breast cancer.
Gen-hong DI ; Jiong WU ; Ke-da YU ; Jin-song LU ; Kun-wei SHEN ; Zhen-zhou SHEN ; Zhi-min SHAO
Chinese Journal of Oncology 2007;29(1):62-65
OBJECTIVETo evaluate the available surgical treatment modalities so as to explore the optimal strategy of managing early breast cancer.
METHODSThe clinical data of 2173 consecutive early-stage breast cancer patients treated by surgery treatments were retrospectively reviewed in order to clarify the indications and contraindications of different modalities. Therapeutic outcome of different surgical treatment modes were compared in terms of recurrence-free survival ( RFS) , disease-free survival ( DFS) , overall survival (OS). The cosmetic results of breast conservation and reconstruction were also evaluated .
RESULTSThe median age of these patients was 51 years ranging from 18 to 91. Of 2173 patients, 547 had stage 0- I lesions and 1626 stage II , and 1155 (53. 2% ) premenopausal. The proportion of patients who received radical surgery, breast conservation and reconstruction after mastectomy was 83. 6% (1817/2173), 10. 5% (229/2173) and 2. 5% (55/2173) , respectively. Younger and premenopausal patients prefer conservative and reconstructive surgeries, which are reasonable for stage 0-I and non-invasive breast cancer patients. Conservative surgery was not suitable for Paget's disease of breast (P = 0. 004) , mastectomy followed by reconstruction in this type of cancer was up to 38. 5%. The recurrence and metastasis rate of conservation or mastectomy were similar with a comparable 3-year RFS of 97. 4% and 95. 4% , respectively; there were also no significant differences in RFS(P =0. 2435) , DFS( P =0. 1395) and OS(P =0. 9406) after having been followed for 3 to 64 months. Similarly, immediate reconstruction did not show any negative effects with only 1 recurrence and 1 metastasis. Aesthetic outcomes were assessed as excellent or good in 90. 0% of breast conservation surgery, and the acceptability of reconstruction was 94. 5%.
CONCLUSIONBreast conserving surgery not only has comparable survival as mastectomy, but also has better cosmetic outcomes. Immediate breast reconstruction can be a suitable option without compromising survival. It is very important in the management for early breast cancer by selecting the most suitable surgery mode for every individual patient not only to cure her disease but also to satisfy the patient psychologically. Conservation should be preferred prior to reconstruction whenever possible.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Breast Neoplasms ; pathology ; surgery ; Carcinoma, Ductal, Breast ; pathology ; surgery ; Carcinoma, Intraductal, Noninfiltrating ; pathology ; surgery ; Disease-Free Survival ; Female ; Follow-Up Studies ; Humans ; Lymphatic Metastasis ; Mastectomy ; methods ; Middle Aged ; Neoplasm Recurrence, Local ; Neoplasm Staging ; Paget's Disease, Mammary ; pathology ; surgery ; Reconstructive Surgical Procedures ; Retrospective Studies
4.Effect of Bacillus acidi lactici CL22 strain on Helicobacter Pylori infectious gastritis in Balb/c mouse model.
Xue-Hong WANG ; Chun-Lian WANG ; Fang-Gen LU ; Yu MENG ; Xiao-Wei LIU
Journal of Central South University(Medical Sciences) 2007;32(2):341-346
OBJECTIVE:
To observe the therapeutic effect of Bacillus acidi lactici on Helicobacter Pylori (Hp) infectious gastritis in Balb/c mouse model so as to explore a possible non-antibiotic treatment for Hp.
METHODS:
To establish a Balb/c mouse model with Hp infectious gastritis through inoculation of mankind Hp,32 Balb/c mice infected by Hp were randomly divided into 4 groups:Group 1(PPI trigeminy treatment group),Group 2 (Bacillus acidi lactici CL22 treatment group),Group 3 (Bacillus acidi lactici CL24 treatment group),and Group 4 (normal saline control group). Intragastric administration was given continuously for 10 days. Another 8 normal mice were chosen as Group 5(blank control group). All mice were killed after 4 weeks since last intragastric administration. Hp was detected by rapid urease test,Giemsa dying, and bacterial culture,and histopathologic changes in the gastric mucosa of mice were determined by H-E staining.
RESULTS:
There were significant differences in pathohistologic scores in sinus ventriculi among the 5 groups (F = 7.932, P = 0.000). The scores in Group 1, Group 2, Group 3, and Group 5 were obviously lower than those in Group 4 (P < 0.05), but there were not significant differences among Group 1, 2, and 5 (P>0.05). The pathohistologic score in Group 3 was obviously higher than that in Group 5 (P <0.05). There were significant differences in pathohistologic scores in corpus ventriculi among the 5 groups (F = 6.241, P = 0.001). The scores in Group 1,Group 2,Group 3,and Group 5 were obviously lower than those in Group 4(P <0.05), but there were not significant differences among Group 1, 2, 3,and 5 (P>0.05). There was significant difference in Hp eradication rates in sinus ventriculi among the 5 groups (chi2 = 16.923, P=0.002). The Hp eradication rates in Group 1 and 2 were obviously lower than those in Group 4 (P <0.05), but there was not significant difference between Group 1 and Group 2, Group 3 and Group 4 (P>0.05). There also were significant differences in Hp eradication rate in corpus ventriculi among the 5 groups (chi2 = 14.295, P=0.006). Of them, Group 1 and Group 2 were higher than Group 4 (P <0.05), but there were not obviously differences between Group 1 and 2,Group 3 and 4 (P>0.05).
CONCLUSION
Bacillus acidi lactici strain CL22 can effectively inhibit and eradicate Hp in Balb/c mouse model with Hp infectious gastritis in vivo. The therapeutic effect of Bacillus acidi lactici strain CL22 is equal to PPI + antibiotics and could be another choice of nonjantibiotic treatment for Hp.
Animals
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Antibiosis
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physiology
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Female
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Gastritis
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microbiology
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Helicobacter Infections
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microbiology
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therapy
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Helicobacter pylori
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Lactic Acid
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biosynthesis
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chemistry
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Lactobacillus
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metabolism
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physiology
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Male
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Mice
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Mice, Inbred BALB C
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Random Allocation
5.Establishment of loop-mediated isothermal amplification method for detection of Legionella pneumophila.
Qin-feng LU ; Wei ZHENG ; Peng LUO ; Zhong-hua WU ; He LI ; Jian-gen SHEN
Journal of Zhejiang University. Medical sciences 2010;39(3):305-310
OBJECTIVETo establish a simple and rapid molecular detection for Legionella pneumophila.
METHODSThe loop-mediated isothermal amplification (LAMP) was applied for detection of Legionella pneumophila. A set of primers were designed to identify six special areas in mip gene of Legionella pneumophila. Genomic DNAs from 13 bacterial strains,including 8 Legionella pneumophila strains and 5 other bacterial strains were amplified by LAMP and general PCR method to evaluate the specificity and sensibility of LAMP.
RESULTAll positive tubes produced visible white precipitation, and no precipitation was observed in others. By adding smart green fluorescent dye, all Legionella pneumophila positive tubes presented a strong green fluorescence, while others showed weak fluorescence. The detection rate of LAMP was higher than that of general PCR. The detection limits were 576fg with genomic DNA of Legionella pneumophila,and 8 cfu/mL with positive water samples.
CONCLUSIONLAMP detection of Legionella pneumophila is an effective and low-cost method with high specificity and sensitivity requiring no special equipment.
DNA Primers ; Legionella pneumophila ; genetics ; isolation & purification ; Nucleic Acid Amplification Techniques ; methods ; Sensitivity and Specificity
6.Intrathecal administration of resiniferatoxin produces analgesia against prostatodynia in rats.
Wei TANG ; Bo SONG ; Zan-Song ZHOU ; Gen-Sheng LU
Chinese Medical Journal 2007;120(18):1616-1621
BACKGROUNDProstatodynia remains a difficult clinical problem. Resiniferatoxin (RTX), an ultrapotent vanilloid, can produce a selective and long-lasting desensitization of nociception via C-fiber sensory neurons. Substance P (SP) and calcitonin gene-related peptide (CGRP) released from C-fibers are key neurotransmitters in visceral pain. In this study, we evaluated the analgesic effect of intrathecal RTX on rat prostatodynia.
METHODSMale Sprague-Dawley rats were divided into 3 groups for different treatment. In group A, sham operation was preformed. In group B, 100 microl complete Freund's adjuvant (CFA) was injected into the rat's bilateral ventral prostate to induce chronic inflammation. In group C, after prostatitis formed, 50 microl 10 nmol/L RTX was injected into the rat's lumbosacral (L5-S2) vertebral canal. SP and CGRP contents in the spinal cord were investigated by immunohistochemistry and radioimmunoassay (RIA). Their transcriptional levels in dorsal root ganglion (DRG) were determined by reverse transcriptase polymerase chain reaction (RT-PCR). In addition, pelvic nerve afferent discharge was recorded to explore the neuro-electrophysiological mechanisms underlying RTX-induced effect.
RESULTSSP and CGRP released in the spinal cord and their synthesis in DRG were increased significantly in response to CFA-induced chronic prostatitis, whereas this increase was effectively inhibited by intrathecal RTX. Meanwhile, pelvic nerve afferent electrical activity was enhanced significantly in rats with chronic prostatitis, but it was attenuated markedly in RTX-treated rats paralleled by the change of neuropeptides.
CONCLUSIONSIntrathecal RTX administration could produce an analgesic effect on rat prostatodynia. Suppression of pelvic nerve afferent electrical activity may be a crucial mechanism underlying RTX-induced analgesia. RTX intrathecal application may present a novel analgesic strategy of prostatodynia.
Analgesics ; administration & dosage ; Animals ; Calcitonin Gene-Related Peptide ; analysis ; genetics ; Diterpenes ; administration & dosage ; Injections, Spinal ; Male ; Prostatitis ; drug therapy ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley ; Substance P ; analysis ; genetics
7.Effects of pioglitazone on the morphology and the expression of connective tissue growth factor of transforming growth factor beta-induced rat hepatic stellate cells in vitro.
Jin-bin JIA ; Yan LIU ; Wei-hua CHEN ; Mei LIU ; Lun-gen LU
Chinese Journal of Hepatology 2007;15(3):192-195
OBJECTIVESTo observe the effects of pioglitazone on morphological changes and connective tissue growth factor (CTGF) expression of the transforming growth factor beta (TGF b)-induced rat hepatic stellate cells (HSCs) in vitro, and to investigate the anti-fibrotic mechanism of pioglitazone.
METHODSCultured rat HSCs were divided into a no-treatment control group, a TGF b-treated group, and a TGFb plus different dosage pioglitazone-treated group. The morphological changes of the cultured HSCs were observed. The expression of CTGF was assessed by immunohistochemistry and flow cytometry. The level of collagen type III in the culture supernatant was measured by ELISA.
RESULTSTGFb induced morphological changes, and increased the expressions of CTGF and collagen type III of the HSCs (P less than 0.05). Pioglitazone prevented the TGFb induced morphological changes of the HSCs. The expression of CTGF and the levels of collagen type III in the pioglitazone group were lower than the TGF b-treated group (P less than 0.05). This prevention effect was dose-dependent (P less than 0.05).
CONCLUSIONPioglitazone blocks the excretion of CTGF and collagen type III of cultured HSCs, preventing the development of liver fibrosis.
Animals ; Cells, Cultured ; Collagen Type III ; secretion ; Connective Tissue Growth Factor ; metabolism ; Hepatic Stellate Cells ; drug effects ; metabolism ; Rats ; Thiazolidinediones ; pharmacology ; Transforming Growth Factor beta ; pharmacology
8.Freeze-drying of silymarin-loaded solid lipid nanoparticles (SM-SLN).
Jun HE ; Jian-fang FENG ; Le-le ZHANG ; Wei-gen LU ; Shi-xiang HOU
China Journal of Chinese Materia Medica 2005;30(2):110-112
OBJECTIVETo investigate lyophilization of SM-SLN.
METHODThe parameters of lyophilization process was optimized. In addition, the protective effect of various types and concentrations of cryoprotectants were tested by shape, colour and disparity.
RESULTThe mixture of 2% lactose and 2% glucose could better prevent nanoparticles from aggregating, the optimal lyophilization process was followed: precooled at -45 degrees C for 10 hr; primary drying at -25 degrees C for 5 hr; secondary drying at 10 degrees C for 3 hr; finally drying at 30 degrees C for 6 hr.
CONCLUSIONChanges in particle size distribution during lyophilization could be minimized by optimizing the parameters of the lyophilization process and adding supporting agent.
Drug Carriers ; chemistry ; Freeze Drying ; methods ; Glucose ; chemistry ; Lactose ; chemistry ; Lipids ; chemistry ; Milk Thistle ; chemistry ; Nanotechnology ; Particle Size ; Plants, Medicinal ; chemistry ; Silymarin ; administration & dosage ; chemistry ; isolation & purification ; Technology, Pharmaceutical ; methods
9.Primary research of pharmacological effects of PEC on mice.
Li-wei WANG ; Xin-min LIU ; Guang-hua LU ; Nan-nan GAO ; Pei-gen XIAO
China Journal of Chinese Materia Medica 2004;29(6):568-593
OBJECTIVETo study pharmacological effects of PEC (the oral liquid which consists of Panax quinquefolium, Epimedium brevicornum, Schisandra chinensis Bail and Cervus eplaphus) on mice.
METHODExperiments were carried out through swimming test, step-through, spontaneous activity and sleeping time.
RESULTWhen 5-10 mL x kg(-1) of PEC was given orally for 7 days, it could prolong swimming duration of mice in water tank, and increase the tolerant ability against oxygen-deficiency. PEC could also improve cognitive-deficiency induced by taking off sleep with force in mice after given orally for 7 days. The PEC could increase the spontaneous activity in mice, antagonize the inhabitation induced by Valium, and shorten the sleeping time caused by sodium pentobarbital.
CONCLUSIONPEC has strong potential neuro-pharmacological activities such as anti-fatigue, improving cognitive-deficiency in mice.
Animals ; Behavior, Animal ; drug effects ; Drug Combinations ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Epimedium ; chemistry ; Fatigue ; drug therapy ; Hypoxia ; drug therapy ; Male ; Memory Disorders ; drug therapy ; Mice ; Panax ; chemistry ; Pentobarbital ; pharmacology ; Phytotherapy ; Plants, Medicinal ; chemistry ; Schisandra ; chemistry ; Sleep ; drug effects ; Swimming
10.Inhibition of the growth of hepatocarcinoma xenograft in Balb/c mice induced by dendritic cells immunized with AFP cDNA fragement.
Bin ZENG ; Ai-jun LIAO ; Fang-gen LU ; Wei-yi FANG ; Jian WANG
Chinese Journal of Oncology 2010;32(2):98-102
OBJECTIVETo investigate the antitumor immune response induced by dendritic cells vaccine coding AFPcDNA fragment with signal peptide (AFP(1)) and without signal peptide (AFP(2)), and to determine the inhibiting effect of the vaccine on the growth of hepatocarcinoma xenograft in Balb/c mice.
METHODSpcDNA3.1/AFP(1) and pcDNA3.1/AFP(2) were transfected into dendritic cells (DCs) by calcium phosphate nanoparticles and became DCs vaccine. Mouse spleen lymphocytes were stimulated by AFP(1)/DC and AFP(2)/DC. A Balb/c mouse model bearing mouse HCC xenograft was established on the day 14 after transplantation. Forty mice were divided equally into AFP(2)/DC group, AFP(1)/DC group and plasmid control group. The treated mice received DCs vaccine and the same amount of control plasmid.
RESULTSAFP(2)/DC stimulated T lymphocytel proliferation in vitro and improved CTL activity. The effects were better than AFP(1)/DC. The tumor-bearing mice injected intralesionally with AFP(1)/DC and AFP(2)/DC at a dose of 0.5 ml per mouse showed inhibition of tumor growth and prolongation of survival time. The tumor inhibition rate of the AFP(2)/DC group was 79.2% and the AFP(1)/DC group was 39.7% at 2 weeks after treatment. The tumor volume of AFP(2)/DC group was (726.7 +/- 298.2) mm(3), significantly smaller than the (1486.2 +/- 457.2) mm(3) of the AFP(1)/DC group and (2137.2 +/- 547.2) mm(3) of the plasmid control group (P < 0.05). The mean survival time of mice in the AFP(2)/DC group [(58.5 +/- 4.2) d] and AFP(1)/DC group [(45.2 +/- 4.8) d] were significantly longer than that of plasmid control group [(30.6 +/- 6.2) d, P < 0.05]. Bax-positive cell percentage was increased in the xenografts of AFP(2)/DC-treatment group compare with that of plasmid control group.
CONCLUSIONAFP(2)/DC and AFP(1)/DC vaccines show evident inhibiting effect on the growth of H22 xenograft in Balb/c mice through inducing efficient and specific immune response against the hepatocarcinoma cells.
Animals ; Calcium Phosphates ; pharmacology ; Cancer Vaccines ; immunology ; Cell Line, Tumor ; Cell Proliferation ; DNA, Complementary ; genetics ; immunology ; Dendritic Cells ; immunology ; Immunization ; Liver Neoplasms, Experimental ; pathology ; Male ; Mice ; Mice, Inbred BALB C ; Nanoparticles ; Neoplasm Transplantation ; Peptide Fragments ; Spleen ; cytology ; T-Lymphocytes ; pathology ; T-Lymphocytes, Cytotoxic ; immunology ; Transfection ; alpha-Fetoproteins ; genetics ; immunology