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Volume 23 ， Issue 6 ， 2008
- Abstract：T cell activation following alloantigen recognition plays a critical role in the development of the rejection in all solid organ, tissue and cell transplantation. A recombinant molecule, cytotoxic T lymphocyte antigen 4 antibody （CTLA-4Ig）, is known to induce to T-cell into "anergy" by blocking the costimulatory B7-CD28 interaction. Either systemic or localized administration of CTLA-Ig has been shown to prolong allograft survival and induce donor-specific tolerance in some transplant models. In this study, we characterized the expression and immunosuppressive effectiveness of adenoviral-mediated CTLA-4Ig gene transfer. We demonstrated transduction of the allografts with AdCTLA-4Ig resulted in localized expression, permanent graft survival and stable donor-specific tolerance. In addition, by performing simultaneous dual-organ transplantation, we targeted on immunosuppression through a local expression of CTLA-4Ig via adenoviral-mediated gene transfer into pancreatic allografts.0|19|1Updated：2026-03-12
- Abstract：<正>We have made a clerical error in Table 1 on the page of 239, Volume 23, No.4 of Journal of Medical Colleges of PLA (the article is entitled as Expression and role of AQP1 in cervical squamous carcinoma and0|5|0Updated：2026-03-12
- Abstract：Objective: To determine whether balloon catheter denudation can induce vascular smooth muscle cells （VSMCs） to senescence, and whether this senescence can result in inflammation activity. Methods: Twelve male Chinese white rabbits were denuded of the carotid arteries or VSMCs. Acidic β-galactosidase activity of carotid arteries or VSMCs was detected. Transfection and chloramphenicol acetyltransferase （CAT） assay for iNOS gene and nitrite （NO2ˉ） assay were undertaken. Reverse transcription-polymerase chain reaction （RT-PCR） was used to evaluate inflammation cytokines mRNA expression. Measurement of NF-κB activity was detected by electrophoretic mobility shift assay （EMSA）. MMP-9, ICAM-1, P-p65, and IκBα expressions were analyzed by Western blotting. Results: After denudation, VSMCs from denuded arteries showed an accumulation of significantly more senescence-associated β-galactosidase （SA-β-Gal） positive cells and greater iNOS activity. Transcriptional activity of iNOS was highly expressed. The mRNA expressions of IL-1β, ICAM-1,MMP-9, TNF-α and the iNOS enzyme were significantly increased in injuring-induced senescence SMCs. However, the TNF-α or IL-1β–induced the protein production （ICAM-1 and MMP-9） was prevented by PDTC and MG132, which are inhibitors of NF-κB activation. Also, activation of NF-κB and cytokine-induced degradation of IκBα in the denuded VSMC were significantly affected. Conclusion: Intraluminal injury to the artery may lead to the emergence of senescent VSMC. Inflammation activity in SMCs is closely related to the senescence and the activation of NF-κB is involved.0|32|1Updated：2026-03-12
- Abstract：Objective: Porcine liver extract has been shown to be effective in the clinical treatment of severe hepatitis. The aim of the present study was to study its antifibrotic as well as immune regulatory effect in vitro. Methods: Hepatocytes, hepatic stellate cells （HSCs）, hepatoma cell line （HepG2） and human peripheral blood mononuclear cells （PMNCs） were studied with respect to proliferation, extracellular matrix production and apoptotic activities by proliferation assay, radioimmunoassay, gene transfection, reporter gene analysis and flow cytometry, respectively. Results: A strong stimulatory proliferation effect was observed in hepatocytes, and an inhibitory effect was found in HSCs. Hyaluronic acid （HA） production and reporter gene activities driven by various α1（I） procollagen gene promoters in HSC-T6 were significantly decreased after treatment with the extract. Fluo-Anexin V binding apoptotic HepG2 cells were more prominent in the presence of 60 μg/ml extract. More CD4+/CD69+ positive T lymphocytes existed in the presence of the extract. Conclusion: Porcine liver extract is effective for antifibrogenesis via hepatocyteregeneration, HSC and hepatoma cell inhibition in vitro. The elevation of active T lymphocytes is helpful for immune surveillance. Fine mapping of the extract is necessary in order to get definite molecules which are essential in all described functions.0|22|1Updated：2026-03-12
- Abstract：Objective: To investigate the possible age- and sex-related differences in the various dimensions of corpus callosum among Chinese normal adults. Methods: Magnetic resonance images of 286 healthy adults, including 127 males and 159 females, and ranging in age from 20 to 81 years, were investigated. They were classified into 5 age groups （ 20–29, 30–39, 40–49, 50–59, and 60–81 years old）. Corresponding to the age group sequence above, the male/female ratio of each group respectively was: 25/26, 26/33, 33/50, 32/36, and 11/14. The following dimensions of corpus callosum were systematically measured on the midsagittal T1-weighted images: frontal to occipital pole （represented as line segment AB）, total longitudinal dimension of the corpus callosum （CD）, the maximum height （EF）, the widths of the genu （CX）, anterior one third （GH）, central region （EZ）, posterior one third （MN） and splenium （YD）. After that, the obtained data was analyzed statistically. Results: （1） The total longitudinal dimension, maximum height, widths of the genu, central region and splenium were proved to be larger in females. But the widths of the anterior one third and posterior one third were similar in-between. In spite of that, a conspicuous sex-related difference was not found. （2） The total longitudinal dimension and the maximum height of the corpus callosum remained stable in all age subgroups. Yet the widths of the genu, anterior one third, central region, posterior one third and splenium had a tendency of decreasing gradually with aging. Statistical difference was seen in the anterior one third, central region, posterior one third （P<0.05）. Conclusion: There is no sex-related difference in all dimensions of corpus callosum. But, with aging, a significant difference is found in the widths of the anterior one third, central region and posterior one third.0|22|2Updated：2026-03-12
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Patient-controlled intravenous fentanyl for cystospasm after transurethral resection of the prostate
Abstract：Objective: To evaluate the clinical efficacy and safety of patient-controlled intravenous analgesia （PCIA） with fentanyl for cystospasm after transurethral resection of the prostate. Methods: Sixty benign prostatic hyperplasia （BPH） patients scheduled for transurethral resection of the prostate （TURP） under general anesthesia with laryngeal mask airway （LMA） were randomly divided into groups F and S. Group F （n=30） received PCIA device with fentanyl 10 μg/kg+8 mg ondansetron, and Group S （n=30） received placebo （PCIA device with 8 mg ondansetron）. The visual analog scale （VAS） scores for pain were evaluated at 0, 2, 4, 8, 16, 24, and 48 h by the same staff. And recorded were incidence of cystospasm, side effects, application of hemostatic, duration of drawing Foley catheter and continuous bladder irrigation, time of exhaust after operation, time of post-operative stay and cost of hospitalization. Results: The incidence of cystospasm in Group F was significantly lower than that in Group S in the 48 h after operation （P<0.05）, the VAS scores for pain in Group F was significantly lower than that in Group S within the 48 h after operation （P<0.01）. The time of exhaust after operation in Group F was significantly later than in Group S （P<0.05）. No significant difference was observed in applications of hemostatic, duration of drawing Foley catheter, duration of continuous bladder irrigation, time of post-operative stay and cost of hospitalization between the 2 groups. Conclusion: PCIA with fentanyl （10 μg/kg） relieves pain with little side effect and reduces cystospasm satisfactorily.0|11|0Updated：2026-03-12 - Abstract：Objective: To elucidate the effects of amlodipine on the proliferation and apoptosis of human breast carcinoma MDA-MB-231 cells. Methods: Light microscopy was used to determine the effects of amlodipine on cell morphology; Flow cytometry was used to quantitate cells undergoing apoptosis; the expression of a cell cycle-related protein, proliferating cell nuclear antigen （PCNA） and an antiapoptosis protein, Bcl-2 were assessed by immunocytochemistry. Results: Amlodipine concentration of 8.25 μmol/L （1/2 of IC50） affected the morphology, decreased the expression of PCNA and Bcl-2 and induced apoptosis of human breast carcinoma MDA-MB-231 cells. Conclusion: The effect of amlodipine on the antiproliferation of human breast carcinoma MDA-MB-231 cells is related to inducement of apoptosis, and the decrease of the expression of Bcl-2 and PCNA may be the possible mechanism for proliferation inhibitory and inducement of apoptosis.0|32|4Updated：2026-03-12
- Abstract：Along with its wide anatomical distribution, somatostatin （SST） acts on multiple targets via a family of 5 receptors to produce a broad spectrum of biological effects. Therefore, a variety of peptide analogs have been produced and are widely used in clinical treatment. However, because of their flaws in the structure of peptide, the clinical efficacy is limited. In this review, we summarize the structure, pharmacological effects and the potential clinical value of non-peptide SST analogs. We focus on the research and development of non-peptide SST analogs since 1998, and discuss the problems and potential prospects for non-peptide SST analogs. We believe that as more non-peptide somatostatin analogs are successfully developed, the extensive clinical application of SSTs will contribute a great deal to medical science.0|19|2Updated：2026-03-12
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