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One case of de novo donor specific antibody(dnDSA)mediated rejection after pediatric kidney transplantation(KT)was analyzed retrospectively.The risk factors and prevention procedures associated with dnDSA induction, and the clinical features and protocols for late post-transplant antibody-mediated rejection(AMR)in pediatric patients were presented.
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Objective:To explore the safety and feasibility of optimized pathological evaluation system of donor's kidney and modified surgery during adult dual kidney transplantation(DKT)and evaluate its effectiveness to provide more alternative protocols for kidney transplantation from extended criteria donors.Methods:DKT was performed in 10 recipients using the same protocol from June 2019 to May 2021.And retrospective reviewing was performed for clinical data, including characteristics of donors and recipients, optimized pathological evaluation system, modified surgery, treatment regimens, complications and follow-ups.Results:There were 8 male and 2 female donors with an age of(57.9±12.8)years and BMI(24.1±4.1)kg/m 2.The percentage of DCD was 70% and DBD 30%.The serum creatinine before procurement was 107.6(93.3-163.5)μmol/l.Zero-point puncture biopsy was performed for both kidneys and optimized pathological evaluation system was implemented(Banff criteria & Remuzzi score). The pathological results indicated that glomerular sclerosis for left and right kidneys were 2.0(1.5-2.0)and 1.5(1.0-2.0). And Remuzzi score for left and right kidneys were(4.4±1.2)and(3.6±1.5)points respectively.All recipients were male with an age of(43.1±9.0)years and BMI(22.2±1.9)kg/m 2.All PRAs were negative pre-operation.Modified surgery was performed in all recipients(two kidneys were implanted outside iliac vessels without patch and artery of superior kidney was anastomosed to internal iliac artery). Operative duration was(195±54.3)min and serum creatinine before discharge 125.0(102.0-199.0)μmol/L.Renal dynamic scintigraphy indicated that glomerular filtration rate was(30.0±8.2)ml/min for left kidney and(29.2±13.9)ml/min for right kidney.MRA results indicated that morphologies of renal arteries and veins were regular.The time between operation and discharge was(22.4±4.7)days.Compared with SKT, serum creatinine before discharge of DKT was lower and DGF incidence of DKT was higher without statistical significance.The time between operation and discharge was longer for DKT than that for SKT( P<0.05). The complications consisted of 20% donor derived infection(DDI)and 50% DGF.And there was no surgical complication associated with vessels and ureter.Renal function remained stable during 6-month follow-ups. Conclusions:Optimized pathological evaluation system of donor's kidney and modified surgery during adult dual kidney transplantation are both safe and feasible.The postoperative function of transplanted dual kidney is successfully restored.However, long-term follow-ups are required for evaluating its effectiveness.
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Objective:To explore the advantages and disadvantages of frozen section versus rapid paraffin section in the evaluations of donor organ.Methods:Five cases of donor liver and 8 cases of discarded donor kidney were collected from 2017 to 2021.Tissues were harvested and prepared by frozen section, rapid paraffin section and normal paraffin section.After hematoxylin-eosin (H&E) staining, the specimens of donor kidney/liver were evaluated by differential histopathological structures and donor quality scoring system.Results:Rapid paraffin section was similar to normal paraffin section in reflecting the proportion of glomerulosclerosis (18.6%±22.3%), arteriolar hyaline degeneration (43.7%±23.8%) and arteriolar stenosis (47.9%±29%). The proportion of glomerulosclerosis (0.8%±2.2%), arteriolar hyaline degeneration (4.9%±7.4%) and arteriolar stenosis (5.3%±7.5%) were lower in frozen sections than those in rapid paraffin sections.The diagnoses of hydropic degeneration and necrosis in donor liver were more accurate in rapid paraffin section.Conclusions:Rapid paraffin section is superior to frozen section in observing histopathological changes under microscope.Scoring of donor organ is more precise according to rapid paraffin section.
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Objective To investigate the value of different biopsy methods for quality evaluation of the donated kidney organ after citizen death.Methods Six cases (6 pairs) of discard donor kidneys were collected from October 2016 to May 2017,respectively,and grouped by wedge biopsy and core needle biopsy.After being fixed and processed for routine paraffin embedding and hematoxylin-eosin (H&E) staining,the specimens were evaluated by the qualified rate of sample,the number of glomerulus,sclerotic glomerulus and small arteries.Results The comparison of two different biopsy methods showed that the number of samples obtained by wedge biopsy was 30.There were 29 samples which were qualified and the qualification rate was 96.7％.The number of samples obtained by core needle biopsy was 30,and only 21 samples were qualified and the qualification rate was 70％.In the wedge biopsy samples,the average number of glomeruli was 22.1 and 6.9 of them were sclerotic glomeruli.The ratio of sclerotic glomeruli was 31.3％.The average number of glomeruli in core needle biopsy samples was 9.5 and 2.1 of them were sclerotic glomeruli.The ratio of sclerotic glomeruli was 22.1 ％.The average number of arteries in wedge biopsy samples was 5.4,and that in core needle biopsy samples was 3.9.The results indicated that the qualification rate of wedge biopsy was significantly higher than that of core needle biopsy (P＜0.01).The number of glomeruli,sclerotic glomeruli and small arteries in wedge biopsy samples was significantly greater than than in core needle biopsy (P＜0.05).Conclusion Wedge biopsy was superior to core needle biopsy for the quality evaluation of specimens and identifying clinically significantly histopathological findings.Thus it is potential for wedge biopsy to become the main method in pre-implantation histopathological evaluation.
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<p><b>OBJECTIVE</b>To explore the role and mechanism of drug delivery systems using growth factor combined with gelatin sponge on accelerating the healing of jaw fracture and to seek better treatment of accelerating the maxillofacial fracture.</p><p><b>METHODS</b>About 100 μg recombinant human bone morphogenetic protein (BMP)-2 was completely dissolved in 1 mL recombinant bovine basic fibroblast growth factor (bFGF), and the solution (40 μL) was dropped in gelatin sponge (0.5 cm×0.5 cm×1.0 cm). Then, it was freeze dried and prepared into bFGF/BMP/gelatin sponge delivery systems. The mandibular fracture model on two sides were prepared in 12 New Zealand rabbits and randomly divided into two groups. The left side was the control group, which was only fixed with titanium plates. The right side was the experimental group, in which bFGF/BMP/gelatin sponge delivery systems were put under the titanium plates. General observation, X-ray, and histological examination were taken at 2, 4, and 12 weeks after surgery.</p><p><b>RESULTS</b>After 2 weeks, more fibrous tissues were seen between the fracture ends in the experimental group than in the control group. After 4 weeks, fibrous fracture callus were seen in the fracture gap in the experimental group. The ingrowths of fibrous tissue and blood vessels were seen in the control group. The fracture healing of the experimental group was significantly faster than the control group at 2 and 4 weeks. After 12 weeks, the experimental and control groups all healed completely.</p><p><b>CONCLUSIONS</b>bFGF/BMP/gelatin sponge can accelerate and improve fracture healing; thus, it has better clinical application prospect.</p>
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Objective@#To observe the efficacy and safety between Pegfilgrastim (PEG-rhG-CSF) and Recombinant human granulocyte colony stimulating factor (rhG-CSF) in hematological malignancy after allogeneic hematopoietic stem cell transplantation (allo-HSCT) .@*Methods@#157 patients after allo-HSCT were enrolled in this study from June 2015 to November 2016. Two agents of G-CSF were used to stimulate hematopoietic recovery after transplantation. There were 65 cases in PEG-rhG-CSF and 92 cases in rhG-CSF groups. Patients in PEG-rhG-CSF group were given a single subcutaneous dose of 6 mg on the first day and +8 d, while cases in rhG-CSF group were given in dose of 5 μg·kg-1·d-1 by subcutaneous injection from +1 d continuing to neutrophils more than 1.5×109/L, and then the indicators and survival rates in two groups after transplantation were compared.@*Results@#①There were no significant differences of the neutrophil implantation time[13.5 (8-12) d vs 13 (9-24) d, P=0.393] and platelet implantation time [14 (9-160) d vs 14 (9-92) d, P=0.094] between PEG-rhG-CSF and rhG-CSF groups respectively. There were no significant differences in terms of neutropenia period (P=0.435) , number of cases who got fever during neutropenia (P=0.622) , and the median time of fever in neutropenia period (P=0.460) , respectively between the two groups. There were no significant differences of erythrocyte and platelet transfusions (P=0.074, P=0.059) within 1 month after transplantation. ②There were no significant differences with regard to the incidences of acute GVHD[23.1% (15/65) vs 34.8% (32/92) , P=0.115], chronic GVHD[20.0% (13/65) vs 32.6% (32/92) , P=0.081], Ⅱ-Ⅳdegree of acute GVHD[30.0% (13/65) vs 30.4% (30/92) , P=0.287] and extensive chronic GVHD[9.2% (6/65) vs 20.7% (19/92) , P=0.135] between PEG-rhG-CSF and rhG-CSF groups. ③There were no significant differences in terms of disease free survival (DFS) (62.5% vs 61.4%, P=0.478) and overall survival (OS) (67.4% vs 67.3%, P=0.718) between PEG-rhG-CSF and rhG-CSF groups. ④There was no significant difference of the non-relapse mortality (NRM) between PEG-rhG-CSF and rhG-CSF groups[20.5% (95%CI 11.4%-37.0%) vs 32.6% (95%CI 22.2%-47.9%) , P=0.141]. The relapse rate was not statistically significant[14.9% (95%CI 7.4%-29.8%) vs 10.0% (95%CI 5.0%-20.0%) , P=0.299].@*Conclusion@#Compared with rhG-CSF, PEG-rhG-CSF could reduce the times of injection. There were no differences in terms of hematopoietic recovery, the incidence of GVHD, relapse rate, DFS and OS rates after allo-HSCT between two groups.
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Objective@#To analyze the efficacy of recombinant activated factor Ⅶ a (rF Ⅶ a) on hematonosis with moderate or severe bleeding signs.@*Methods@#Of total 16 cases with rF Ⅶ a treatment from May 2013 to May 2016, 8 cases received allogeneic hematopoietic stem cells transplantation (allo-HSCT) and the other were non-transplantation patients. In two groups, there was no significant difference on rF Ⅶ a usage and dosage. 15 patients with acute graft-versus-host disease (aGVHD) after allo-HSCT were control group (without rF Ⅶ a) .@*Results@#①The total response rate was 75.0% (6/8) in non-transplantation group and 37.5% (3/8) in transplantation group, respectively. Median interval for hemorrhage stop was 38.5 hours in non-transplantation group and 63.0 hours in transplantation group. The median overall survival (OS) was 201.0 and 29.0 days for non-transplantation group and transplantation group, respectively, and the OS rate was 50.0% (4/8) and 25.0% (2/8) , respectively. The bleeding-related mortality rate was 50.0% (2/4) and 83.3% (5/6) , respectively. ②Of the 16 cases, 9 showed response to rF Ⅶ a treatment and the other 7 cases’bleeding signs did not alleviate. The median OS was 268.0 in 9 cases with response and 24.0 days in 7 cases without response, respectively. ③In patients with intestinal aGVHD complicated with intestinal hemorrhage, the median OS of observation group (n=6) and control group (n=15) were 25.5 days and 20.0 days, respectively.@*Conclusion@#Patients with hematological diseases, especially patients after allo-HSCT, had high bleeding-related mortality, and rFⅦa therapy had a obvious hemostatic efficacy. The survival rate of patients with response was higher than that of cases without response. The causes of poor hemostasis efficacy of rF Ⅶ a therapy were associated with unsatisfactory control of complications in patients with intestinal bleeding after allo-HSCT.
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Objective To investigate the relationship between the composition of vaginal microbiota and the course of cervical precancerous lesion.Methods A total of 64 vaginal swabs were collected from 22 healthy women, 18 CINⅠ patients and 24 CINⅡ/Ⅲ patients who visited Obstetrics and Gynecology of the Second Xiangya Hospital of Central South University during July 2014 and July 2015.The Bacterial genomic DNA was extracted and the V3 and V4 hypervariable regions of 16S rRNA were amplified and high-throughput sequenced.The abundance and composition of vaginal microbiota were analyzed by Uparse, Mothur and LefSe statistical software.Results There was no significant difference in Alpha diversity index between CINⅡ/Ⅲ group(Chao:63±32;ACE:72±38;Simpson:0.70±0.27;Shannon:0.70±0.63) and control group ( Chao:48±24;ACE:54±25;Simpson:0.71±0.27;Shannon:0.65±0.58)(W=192,P=0.11;W=189,P=0.10;W=281,P=0.72;W=241,P=0.62).The ACE(85±37) and Chao(66±25) values of CINⅠgroup were significantly different from those of the control group (ACE:54±25;Chao:48±24)(W=99,P=0.006;W=113,P=0.02).At the phylum level, 78.69%(309 020/392 722) of the vaginal microbiota in the control group was Firmicutes, 16%(62 846/392 722) was Actinobacteria.Firmicutes was reduced to 64.86%(208 422/321 318) and Actinobacteria increased to 27.71%(89 040/321 318) in CINⅠgroup.The composition of vaginal microbiotain in CINⅡ/Ⅲ group was similar to those of control group.At the genus level, the composition of vaginal microbiota were similar between CINⅡ/Ⅲ group and control group, with Lactobacillus as predominant genus[71.81%(307 658/418 424)], Gardnerella[12.91%(55 299/428 424)], others such as Prevotella, atopobium were less.In the CINⅠ group, the abundance of Lactobacillus was decreased to 56.26%(180 787/321 318), Gardnerella was increased to 19.62%(63 057/321 318), and Listeria was increased to 7.7%(24 746/321 318).The composition of vaginal microbiota in the most samples was classified as CSTⅢ and CSTⅠ, with Lactobacillus inersand and Lactobacillus crispatus were dominant respectively.There was no significant difference in the composition of vaginal microbiota between the three groups(χ2=2.72, P=0.949).LEfSe analysis showed that the abundance of bacteria in CIN group and control group were varied.At the genus level, there were significant differences in the abundance of Geobacter, Atopobium and Ureaplasma (P<0.05, P<0.05, P<0.01, respectively).At the species level, there was significant difference in the abundance of Ureaplasma urealyticum serotype 9 (P<0.01).Conclusion The diversity and the composition of vaginal microbiota were similar between CIN patients and healthy women, but the abundances of some bacteria were varied, with Ureaplasma increased in patients with CIN.
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<p><b>OBJECTIVE</b>To investigate the efficacy of allogeneic hematopoietic stem cell transplantation（allo-HSCT）in the treatment of patients with Ⅲ,Ⅳ non-Hodgkin lymphoma（NHL）, and compared the efficacy between Cy- fractionated to talbody irradiation（fTBI）based conditioning regimen and Maryland, horse flange and mitoxantrone（BMM）.</p><p><b>METHODS</b>The clinical data of 47 patients with Ⅲ, Ⅳ NHL after allo- HSCT from November 1998 to May 2014 were collected and retrospectively analyzed. To observe the hematopoietic reconstruction recovery after transplantation, cumulative incidence of acute graft- versus- host- disease （aGVHD） and chronic graft- versus- host- disease （cGVHD）, transplantation related mortality （TRM）, recurrence rate （RR）, disease- free survival （DFS）, overall survival（OS）. Compare the efficacy of fTBI and BMM conditioning regimen at the same time.</p><p><b>RESULTS</b>Neutrophils achieving 0.5×10⁹/L and platelets achieving 50×10⁹/L on day 17 （range, 10- 72） post transplantation. Acute GVHD occurred in 53.19%, among them, grade Ⅰ-Ⅱ occurred in 42.55%, grade Ⅲ-Ⅳ occurred in 10.65%, and cGVHD occurred in 21.28%. 21 patients were alive with a median follow up of 9.7 months（0.2-149.1 months）. Overall survival（OS）was 73.5%, 49.3%, 40.1% respectively in the first, third and fifth year in Cy-fTBI group; in BMM group it was 67.8%, 32.9% and 31.4% respectively, and disease-free survival（DFS）was 65.3%, 45.6%, 30.2% respectively in the first, third and fifth year. In Cy-fTBI group, the recurrence rate（RR）and transplantation related mortality（TRM）in the first year were 18.9%, 23.0% respectively, the third year were 19.5%, 38.3% and the fifth year were 35.2%, 39.2%. In BMM group, RR and TRM in the first year were 27.4%, 24.5% respectively, the third year were 38.9%, 46.4% and the fifth year were 39.2%, 48.2%. However, there was no significant difference in the indicator of OS, DFS, RR, TRM in the two groups.</p><p><b>CONCLUSION</b>Allo-HSCT could make some Ⅲ,Ⅳ NHL patients achieve long-term disease- free survival, but the TRM was still high relatively. Moreover, compared with the program of BMM conditioning regimen, Cy-fTBI might reduce the TRM and RR, meanwhile, increase the DFS and OS. However, due to the small number cases of two groups, there was no statistical significant difference.</p>
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Humans , Disease-Free Survival , Graft vs Host Disease , Hematopoietic Stem Cell Transplantation , Lymphoma, Non-Hodgkin , Therapeutics , Neoplasm Recurrence, Local , Retrospective Studies , Transplantation Conditioning , Methods , Transplantation, HomologousABSTRACT
<p><b>BACKGROUND</b>Steady-state bone marrow (SS-BM) and granulocyte colony-stimulating growth factor-primed BM/peripheral blood stem-cell (G-BM/G-PBSC) are the main stem-cell sources used in allogeneic hematopoietic stem-cell transplantation. Here, we evaluated the treatment effects of SS-BM and G-BM/G-PBSC in human leucocyte antigen (HLA)-identical sibling transplantation.</p><p><b>METHODS</b>A total of 226 patients (acute myelogenous leukemia-complete remission 1, chronic myelogenous leukemia-chronic phase 1) received SS-BM, G-BM, or G-PBSC from an HLA-identical sibling. Clinical outcomes (graft-versus-host disease [GVHD], overall survival, transplant-related mortality [TRM], and leukemia-free survival [LFS]) were analyzed.</p><p><b>RESULTS</b>When compared to SS-BM, G-BM gave faster recovery time to neutrophil or platelet (P < 0.05). Incidence of grade III-IV acute GVHD and extensive chronic GVHD (cGVHD) was lower than seen with SS-BM (P < 0.05) and similar to G-PBSC. Although the incidence of cGVHD in the G-BM group was similar to SS-BM, both were lower than G-PBSC (P < 0.05). G-BM and G-PBSC exhibited similar survival, LFS, and TRM, but were significantly different from SS-BM (P < 0.05). There were no significant differences in leukemia relapse rates among the groups (P > 0.05).</p><p><b>CONCLUSIONS</b>G-CSF-primed bone marrow shared the advantages of G-PBSC and SS-BM. We conclude that G-BM is an excellent stem-cell source that may be preferable to G-PBSC or SS-BM in patients receiving HLA-identical sibling hematopoietic stem-cell transplantation.</p>
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Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Young Adult , Bone Marrow , Bone Marrow Transplantation , Methods , Granulocyte Colony-Stimulating Factor , Pharmacology , Leukemia, Myelogenous, Chronic, BCR-ABL Positive , Therapeutics , Leukemia, Myeloid, Acute , Therapeutics , Retrospective Studies , Stem Cells , Cell BiologyABSTRACT
Objective To investigate the role of recombinant Vibrio vulnificus cytolysin (rVvhA) in inducing THP-1 cells damage and study the pathway of associated calcium influx .Methods Inverted mi-croscope, CCK-8 cell proliferation kit, Fluo3/AM staining and caspase activity detection were performed to analyze the damage of THP-1 cells induced by rVvhA and the pathway of calcium influx .Results rVvhA had cytotoxic effects on THP-1 cells in a dose-dependent manner .The concentrations of extracellular K +and LDH were respectively up-regulated after 1 h and 6 h of 12 μg/ml rVvhA intervention .Verapamil , Mibe-fradil and SKF-96365 could not prevent the influx of free Ca 2+induced by rVvhA .The activities of caspase-3 and caspase-9 were singanificantly enhanced by rVvhA in a time-dependant manner .Conclusion rVvhA can induce THP-1 cells damage through triggering extracellular calcium influx via porous channel on cell membrane.Moreover, rVvhA might induce THP-1 cell apoptosis through activating caspase-9/3-dependent pathway .
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10.3969/j.issn.1008-9691.2013.03.017
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OBJECTIVE@#To evaluate the clinical effect of letrozole (LE) alone on the ovulation induction in endometrial preparation for frozen-thawed embryo transfer (FET).@*METHODS@#Totally 253 FET cycles were analyzed by case control study from October 2010 to June 2011. We divided ovulation disorders or menstrual disorders divided into 2 groups: a LE group on ovulation induction cycle (n=85), and a hormone replacement therapy (HRT) cycle group (n=84). Meanwhile those who ovulated normally were included in a natural cycle group (n=84). Demographics and clinical parameters of reproductive correlation of all patients were observed among these groups.@*RESULTS@#The average clinical pregnancy rate of the LE group was higher than that of HRT cycle group (54.1% vs 44.04%; P0.05). The estradiol level on human chorionic gonadotrophin (HCG) administration day in the natural cycle group [(341.19±113.14) pg/mL] was higher than that of the LE group [(279.70±127.80) pg/mL] (P0.05).@*CONCLUSION@#Ovulation induction with LE alone for endometrial preparation is superior to HRT cycle in FET and has similar clinical process and outcome to those of the natural cycle. It can be applied in endometrial preparation for FET effectively for those with anovulation or menstrual disorder.
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Female , Humans , Case-Control Studies , Cryopreservation , Embryo Transfer , Endometrium , Physiology , Fertility Agents, Female , Therapeutic Uses , Fertilization in Vitro , Letrozole , Nitriles , Therapeutic Uses , Ovulation Induction , Methods , Triazoles , Therapeutic UsesABSTRACT
Objective To study the method of biological dye injection for detecting sentinel lymph node(SLN) in breast cancer, and explore the accuracy of evaluating axillary lymph node status by SLN biopsy(SLNB). Methods Intro-dermal methylthionium injection during operation was applied to identify SLN in 71 breast cancer patients, and the detection results were compared with the metastasis status of dissected axillary lymph nodes. Results SLN was identified in 70 of 71 patients(97%) using methylthionium injection. Total 188 SLNs were detected in all patients, each patient having 1～4 SLNs(average 2 7). The false negative rate of methylthionium injection for detecting SLN was 2%(1/42). The sensitivity, specificity and accurate rate of SLN to predict axillary lymph node metastasis status were 96%, 100% and 97% respectively. Conclusion Intro-dermal methylthionium injection can identify SLN and accurately predict the axillary lymph node status . This method is cheap and can be widely used.
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【Objective】To investigate the relationship between the expression of lymphocyte function-associated antigen-1 (LFA-1) on peripheral lymphocytes and acute rejection after orthotopic liver transplantation (OLTx) in rat.【Methods】Adult male rats were divided into 2 groups.In the non-rejection group,40 SD rats were used as both donors and recipients.In the rejection group,20 Wistar rats were used as donors and 20 SD rats as recipients.Blood samples were collected through the tail vein 1 day before transplantation and on days 1、3、5、7 after OLTx.The expression of LFA-1 (CD11a) on peripheral lymphocytes was analyzed by using indirect immunofluorescent marker-flow cytometry.【Results】The expression level of LFA-1 on peripheral lymphocytes in recipient rats after orthotopic liver transplantation was markedly lower than that before operation (P<0.01);The expression level of LFA-1 on peripheral lymphocytes in rats with acute liver rejection was significantly higher than that in the non-rejection group (P<0.01).【Conclusion】Monitoring the expression level of LFA-1 on peripheral lymphocytes may be helpful to the diagnosis of acute graft rejection.
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Objective To study the roles of P-selectin and nitric oxide (NO) on the etiology of pregnancy induced hypertension (PIH). Methods The levels of plasma P-selectin and nitrite and nitrate (NO2-/NO3-) were determined in 36 patients with PIH. The data were compared with those of normal pregnant group (n=18) and healthy non-pregnant group (n=19). The levels of plasma P-selectin were measured by means of enzyme-linked immunosorbent assay (ELISA) and levels of plasma NO2-/NO3- were measured by Griess reaction after the nitrate was reduced by a Cadmium-reduction method. Results The results showed: （1）The level of P-selectin in the normal pregnant group (48.92±15.16) μg/L was higher than that in non-pregnant group ［(30.16±8.42) μg/L, P<0.001］. There was no significantly statistical difference in the levels of P-selectin between the normal pregnant group and the mild PIH group (P>0.05). The levels of P-selectin in the moderate and severe PIH group (70.11±17.65) μg/L were higher than those in the mild PIH group ［(47.33±17.95) μg/L, P<0.01］ and the normal pregnant group (P<0.001). （2）The concentration of NO2-/NO3- in normal pregnant group was higher than that in non-pregnant group (P<0.01). The concentration of NO2-/NO3- in PIH group were lower than was in normal pregnant group (P<0.001). The NO2-/NO3- in mild group was lower than that in normal pregnant group (P<0.001). The Plasma concentration of NO2-/NO3- in moderate and severe PIH group was lower than that of mild group (P<0.05). （3） There was a negative correlation between the plasma concentration of P-selectin and NO2-/NO3- in the PIH group. Conclusion The changes of plasma levels of P-selectin and NO are related to the occurrence and development of PIH.
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Objective To study the association of plasma von willebrand factor (vWF) and endothelin-1(ET-1) levels in patients with pregnancy induced hypertension (PIH). Methods Plasma vWF and ET-1 were studied by ELISA method and immunoradiological method respectively in 36 patients with PIH, 18 normal pregnant women and 19 normal non-pregnant women. Results Circulation levels of vWF and ET-1 were increased with increasing severity of the PIH. In mild PIH patients, the levels of plasma vWF ［(135.9±30.9)%, （P>0.05)］ weren′t significantly higher than those in healthy pregnant women ［(131.6±39.2)%,（P>0.05)］，but the levels of ET-1 ［(63.7±4.8) pg/L］ were significantly higher than those in healthy pregnant women ［(47.1±4.7) pg/L,（P<0.01)］. There were significant differences between groups of moderate-severe PIH ［vWF (174.4±35.4)%, ET-1 (92.6±19.1) pg/L］. There was a positive correlation between the plasma vWF level and ET-1 level. Conclusion The results suggested that plasma vWF and ET-1 concentration could be used as indicators for the severity of PIH.
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Objective To investigate the relationship between the intercellular adhesion molecule-1(ICAM-1) and lymphocyte function associated with antigen-1( LFA-1) and acute rejection of liver transplantation in rats. Methods SD rats and Wistar rats were randomly divided into normal control group, isograft group, and allograft group. Liver biopsies from the recipients were obtained on the day 2,4, and 7 postoperatively to examine the expression level of ICAM-1 and LFA-1 in liver grafts. Samples were firstly stained with specific monoclonal antibodies using immunohistochemistry stain and then applied to image semiquantitive analysis. Results The expression levels of ICAM-1 and LFA-1 in allograft group were obviously higher than those in both isograft group and normal group. Moreover, the expression levels of ICAM-1 and LFA-1 were correlated positively with the degree of acute liver rejection. Conclusions Detecting the expressions of ICAM-1 and LFA-1 in liver graft tissue may be helpful to the diagnosis of acute rejection after liver transplantation.