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1.
Journal of Leukemia & Lymphoma ; (12): 161-165, 2023.
Article in Chinese | WPRIM | ID: wpr-988968

ABSTRACT

Objective:To explore the efficacy of tislelizumab combined with umbilical cord blood transplantation (UCBT) in relapsed/refractory acute myeloid leukemia (R/R AML) patients.Methods:The diagnosis and treatment of 1 patient with R/R AML who received tislelizumab bridging to UCBT after the failure of re-induction treatment in the First Affiliated Hospital of Soochow University in November 2021 was retrospectively analyzed.Results:The 59-year-old male patient with R/R AML achieved a complete remission after initial induction chemotherapy regimen of decitabine and venetoclax, and then additional consolidation therapy regimens of decitabine and middle-dose cytarabine, middle-dose cytarabine and idarubicin were performed. The patient relapsed 16 months later and failed to achieve a second remission after re-induction therapy regimens of cladribine, azacitidine, venetoclax combined with chemotherapy, and homoharringtonine, cytarabine combined with granulocyte colony-stimulating factor. Tislelizumab significantly reduced tumor burden and the patient achieved the complete remission after bridging to UCBT. After transplantation, the patient was given maintenance treatment with azacitidine and he had sustained remission without severe transplant-related complications during 9-month follow-up.Conclusions:The use of tislelizumab bridging UCBT can be a potential therapeutic strategy for R/R AML patients.

2.
Chinese Journal of Blood Transfusion ; (12): 496-500, 2023.
Article in Chinese | WPRIM | ID: wpr-1004814

ABSTRACT

【Objective】 To investigate the situation of carbapenem-resistant Enterobacteriaceae(CRE) colonization in patients undergoing haploidentical hematopoietic stem cell transplantation (haplo-HSCT). 【Methods】 A total of 241 consecutive patients who underwent haplo-HSCT in the First Affiliated Hospital of Soochow University from June 1, 2021 to June 1, 2022 were enrolled. Anal swab screening was performed within 48 hours of admission and blood cultures were taken when the patient developed fever. Univariate and multivariate analysis were used to analyze the colonization rate, distribution, risk factors and the correlation between CRE colonization and post-transplant bloodstream infection(BSI). 【Results】 Among 241 patients with haplo-HSCT, there were 90 cases in CRE colonization positive group, with a colonization rate of 37.3% (90/241). Multivariate logistic regression analysis showed that sex (OR 2.42, 95% CI 1.38-4.22, P<0.05) and history of infection within 30 days before transplantation (OR 3.37, 95% CI 1.59-7.17, P<0.05) may be independent risk factors for CRE intestinal colonization. Of the 95 CRE strains, the top five species were carbapenem-resistant Klebsiella pneumoniae (38/95, 40.0%), carbapenem-resistant Escherichia coli (29/95, 30.5%), carbapenem-resistant Enterobacter cloacae (13/95, 13.6%), carbapenem-resistant Klebsiella acidophilus (6/95, 6.3%) and carbapenem-resistant Proteus mirabilis (3/95, 3.1%). The incidence of post-transplant BSI was 12.0% (29/241) in the CRE-colonized group and 3.3% (8/241) in the non-colonized group. In the colonization group, 100% of the pathogens of BSI were identical with those of CRE colonization. 【Conclusion】 Bacterial culture of anal swab during haplo-HSCT is helpful for detection of CRE colonization in intestinal tract, which provides some clinical basis for active monitoring of key flora, prevention and control of infection.

3.
Chinese Journal of Blood Transfusion ; (12): 777-781, 2023.
Article in Chinese | WPRIM | ID: wpr-1004739

ABSTRACT

【Objective】 To investigate the correlation between early immune reconstitution and clinical outcomes in patients with acute lymphoblastic leukemia (ALL) underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT). 【Methods】 The basic information and treatment data of 99 patients with ALL undering allo-HSCT from December 2018 to February 2022 were collected. The proportions of CD3+ T, CD3+CD4+ T, CD3+CD8+ T and CD3-CD16+CD56+ NK cells were detected before and 30, 60 and 90 days after transplantation using flow cytometry. The correlation between early cellular immune reconstitution and neutrophil engraftment, platelet engraftment, infection, and acute and chronic graft-versus-host disease (GVHD) was analyzed. 【Results】 Among 99 ALL patients, the median time of neutrophil engraftment was day +11 (range, 8-28), and the median time of platelet engraftment was day +14 (range, 10-120). The cumulative incidence of blood stream infection (BSI) was 11.10% and the cumulative incidence of CMV within 100 days of transplantation was 40.40%. The cumulative incidence of EBV within 100 days was 7.10%. The cumulative incidence of acute graft-versus-host disease (aGVHD) was 22.30%. The cumulative incidence of chronic graft-versus-host disease (cGVHD) within 1 year of transplantation was 16.20%. 1 -year cumulative relapse rate was 13.84%. The 1 -year cumulative disease-free survival (DFS) for all patients was 80.60% and the 1-year overall survival (OS) was 90.30%. The CD4+/CD8+ ratio was positively associated with the development of aGVHD at 30 days post-transplant (OR 1.21, 95CI 1.01-1.45, P<0.05). The proportion of CD16+ CD56+ NK cell were higher in the group without BSI than that in the BSI group before and 30 days after transplantation (P < 0.05). The proportion of CD4+ T-cell were lower in the CMV infection group than that in the group without CMV infection at 60 and 90 days post-transplant(P<0.05). The higher level of CD4+ T-cells at 60 days post-transplant was a protective factor for CMV infection within 100 days (HR 0.91, 95CI 0.84-0.99, P<0.05). 【Conclusion】 Early immune reconstitution after allo-HSCT in patients with ALL is associated with aGVHD, CMV and BSI.

4.
Chinese Journal of Blood Transfusion ; (12): 995-999, 2023.
Article in Chinese | WPRIM | ID: wpr-1004686

ABSTRACT

【Objective】 To investigate the clinical characteristics and diagnosis and treatment of passenger lymphocyte syndrome (PLS) in patients following allogeneic hematopoietic stem cell transplantation (allo-HSCT). 【Methods】 A total of 489 patients who underwent allo-HSCT in Suzhou Hongci Hematology Hospital were retrospectively enrolled. The clinical process, diagnosis and treatment measures and prognosis of four patients complicated with PLS after transplantation were analyzed. 【Results】 Among the 489 patients, 4 were diagnosed with PLS. The blood types of donor/recipient ABO were all secondary incompatible (The blood type of donors were O and the recipients were A or B). The overall incidence of PLS in allo-HSCT was 0.82%(4/489)and 2.2%(4/179)in transplants with donor/recipient secondary incompatible ABO-blood types. PLS occured in 6-13 days after donor stem cell infusion. Clinical manifestations were dizziness and fatigue, low back pain, jaundice, deepening urine, rapid decrease in hemoglobin on laboratory tests, elevated indirect bilirubin and lactate dehydrogenase, positive urobilinogen, positive direct anti-human globulin test (DAT), and anti-A or anti-B antibodies against recipient red blood cells were detected in plasma. After the treatment of O-type washed red blood cells, methylprednisolone, gamma globulin, rituximab and other treatments, the hemolysis was improved. All patients achieved engraftment of neutrophil and platelet. Red blood cell transfusion was halted in 3 weeks. 【Conclusion】 PLS is a rare complication of allo-HSCT, which mainly occurs in allo-HSCT patients with secondary incompatibility of ABO blood group of donor/recipient. The clinical prognosis is good after properly treatment.

5.
Chinese Journal of Radiological Medicine and Protection ; (12): 823-829, 2022.
Article in Chinese | WPRIM | ID: wpr-956867

ABSTRACT

Objective:To investigate the effects of Bifidobacterium animalis subsp. lactis BB-12 on hippocampal neuroinflammation and cognitive function of mice after whole brain radiotherapy. Methods:A total of sixty male C57BL/6J mice aged 7-8 weeks were randomly divided into 5 groups with 12 mice in each group: control group (Con group), probiotic group (BB-12 group), irradiation group (IR group), irradiation and Memantine group (IR+ Memantine group), irradiation and probiotic group (IR+ BB-12 group). The model of radiation-induced brain injury of mice was established by 10 Gy whole brain radiotherapy with a medical linear accelerator. Y-maze test was used to evaluate the cognitive function. The activation of microglia and astrocytes was observed by immunofluorescence staining. The expressions of inflammatory cytokines interleukin-1β (IL-1β), IL-6 and tumor necrosis factor-α (TNF-α) were detected by quantitative real-time reverse transcription polymerase chain reaction (QRT-PCR) and Western blot.Results:Y-maze test showed that, compared with Con group, the percentage of the times of reaching the novel arm in the total times of the three arms decreased significantly in the IR group ( t=5.04, P<0.05). BB-12 mitigated radiation-induced cognitive dysfunction ( t=4.72, P<0.05). Compared with Con group, the number ( t=3.05, 7.18, P<0.05) and circularity index ( t=6.23, 2.52, P<0.05) of Iba1 and GFAP positive cells were increased, the microglia and astrocytes were activated in the hippocampus of IR group, but these alterations were eliminated by BB-12. After whole brain IR, the mRNA and protein expression levels of inflammatory cytokines IL-1β, IL-6 and TNF-α in the hippocampus of mice were significantly increased compared with Con group ( tmRNA =4.10, 3.04, 4.18, P<0.05; tprotein=11.49, 7.04, 8.42, P<0.05), which were also significantly reduced by BB-12 compared with IR group ( tmRNA=4.20, 3.40, 2.84, P<0.05; tprotein=6.36, 4.03, 3.75, P<0.05). Conclusions:Bifidobacterium animalis BB-12 can suppress neuroinflammation mediated by microglia and astrocytes in the hippocampus of mice after radiotherapy and alleviates IR-induced cognitive dysfunction. Therefore, BB-12 has potential application in alleviating radiation induced brain injury.

6.
Chinese Journal of Hematology ; (12): 404-410, 2019.
Article in Chinese | WPRIM | ID: wpr-810639

ABSTRACT

Objective@#To investigate the incidence, risk factors and survival of bronchiolitis obliterans syndrome (BOS) in patients who had undergone haplo-hematopoietic stem cell transplantation (haplo-HSCT) .@*Methods@#This study retrospectively analyzed clinical data of 444 consecutive patients who underwent haplo-HSCT and survived at least 100 days after transplantation in the First Affiliated Hospital of Soochow University between January 2013 and December 2015.@*Results@#By the end of follow-up on January 1, 2018, 25 patients (5.63%) had BOS (BOS group) . The median onset time of BOS was 448 (165-845) d post transplantation, the 1-year, 2-year and 3-year cumulative incidence of BOS was 1.6% (95%CI 1.5%-1.6%) , 4.8% (95%CI 4.7%-4.8%) and 5.8% (95%CI 5.7%-5.8%) , respectively. Among patients with chronic graft-versus-host disease (cGVHD) , the cumulative incidence at the same intervals was 2.8% (95%CI 2.7%-2.8%) , 9.5% (95%CI 9.4%-9.5%) and 11.5% (95%CI 11.4%-11.6%) , respectively. In the multivariate analysis, the risk factors for BOS were high-risk primary disease, Ⅱ-Ⅳ aGVHD and preceding cGVHD with other organs. The 3-year overall survival (OS) was lower among patients with than those without BOS, but the difference was not significant [71.8% (95%CI 53.9%-89.6%) vs 72.4% (95%CI 68.1%-76.7%) , P=0.400]. Overall 1-year, 3-year survival of patients with BOS from the time of diagnosis was 78.4% (95%CI 61.5%-95.3%) and 37.0% (95%CI 2.5%-71.5%) , respectively, significantly less than those without (93.9% and 89.3%, from day 448 after transplantation, respectively, P<0.001) . Furthermore, we found a significantly higher incidence of transplantation-related mortality (TRM) in patients with compared with patients without BOS (28.2% vs 10.9%, P<0.001) . The main risk factor for OS of BOS patients was the severity of pulmonary impairment at the time of diagnosis. Patients who developed severe BOS had a worse OS than those with moderate and mild BOS (P=0.049) .@*Conclusion@#BOS is a severe pulmonary complication of haplo-HSCT. High-risk primary disease, Ⅱ-Ⅳ aGVHD and preceding cGVHD were independent risk factors for BOS. Patients who developed BOS had a worse OS than those without BOS. The main risk factor for OS of BOS patients was the severity of pulmonary impairment.

7.
Chinese Journal of Hematology ; (12): 125-131, 2019.
Article in Chinese | WPRIM | ID: wpr-810465

ABSTRACT

Objective@#To investigate herpesvirus infection in early stage of hematopoietic stem cell transplantation (HSCT) by multiplex polymerase chain reaction (PCR), and to explore the association between multiple herpesviruses infection and clinical characteristics in HSCT patients and its impact on post-transplant complications and prognosis.@*Methods@#A total of 734 peripheral blood samples were collected from 90 patients undergoing HSCT in the Department of Hematology, the First Affiliated Hospital of Soochow University between February 2017 and August 2017. The peripheral blood specimens were obtained before and within 90 days after transplantation at different time points. Lab-Aid824 Nucleic Acid Extraction Mini Reagent was used to extract DNA and multiplex PCR assay was used to simultaneously detect 8 kinds of human herpesviruses from genomic DNA. The incidence of various herpesvirus infections, its correlation with clinical features and effects on post-transplant complications and prognosis were analyzed.@*Results@#The median follow-up time was 192 (range: 35-308) days. Among the 90 patients before transplantation, the incidence of herpes virus infection was 35.6% (32/90), including 12.2% (11/90) with one herpes virus infection and 23.3% (21/90) with multiple viruses infection. The incidence of herpes virus infection after transplantation was 77.8% (70/90), including 20.0% (18/90) with one herpes virus infection and 57.8% (52/90) with multiple herpes virus infection. Among the 52 patients with multiple herpes viruses infection, 30 (57.7%) patients were infected by 2 kinds of viruses, 18 (34.6%) patients by 3 kinds of viruses and 4 (7.7%) patients by 4 kinds of viruses. There was a correlation between HHV-6 and HHV-7 herpesvirus infection (OR=13.880, Q=0.026). EBV infection was related to HHV-7 infection (OR=0.093, Q=0.044). The age of patients was correlated with the incidence of HHV-1 infection before transplantation. There were 24 patients in our study experienced clinical symptoms associated with viral infection. The main manifestations were hemorrhagic cystitis (HC), interstitial pneumonia, enteritis, viral encephalitis and fever of unknown origin. EBV infection was related to HLA incompatibility and the inconsistent of the ABO blood group and grade Ⅱ-Ⅳ aGVHD after transplantation. HLA incompatibility and the unrelated donor and grade Ⅱ-Ⅳ aGVHD were related to multiple viruses infection.@*Conclusion@#Multiple herpesviruses were common in patients undergoing HSCT, which were closely related to HLA mismatch, unrelated donor and grade Ⅱ-Ⅳ aGVHD.

8.
Chinese Journal of Organ Transplantation ; (12): 227-231, 2018.
Article in Chinese | WPRIM | ID: wpr-710687

ABSTRACT

Objective To explore the clinical features of cytomegalovirus (CMV) and EpsteinBarr virus (EBV) infection after second hematopoietic stem cell transplantation (HSCT).Methods Twenty-five patients after second HSCT from Sep.2009 to Oct.2016 were collected,and CMV and EBV DNA in peripheral blood was detected regularly by polymerase chain reaction (PCR).Factors associated were compared by univariate analysis.Results The total incidence of CMV infection was 52.0% (13/25) after second HSCT.The incidence of CMV infection was 100% (2/2),33.3% (5/15) and 75% (6/8) in bone marrow group,peripheral blood stem cell group,and mixed group,respectively.Stem cell sources were significantly correlated with CMV infection (P =0.038),however,there was no significant difference in CMV infection rate among three groups (P>0.05).None of preconditioning regimen,GVHD prophylaxis programs or severity of aGVHD were correlated with CMV infection after second HSCT (P>0.05).The total incidence of EBV infection was 24.0% (6/25) after second HSCT.The incidence of EBV infection was 100% (2/2),6.7% (1/15) and 37.5% (3/8) in bone marrow group,peripheral blood stem cell group,and mixed group,respectively.Stem cell sources were significantly correlated with EBV infection (P =0.008).The EBV infection rate in bone marrow group was significantly higher than that in peripheral blood group (P =0.022),however,no significant differences were found between bone marrow group and mixed group,as well as between peripheral blood group and mixed group (P>0.05).Transplant methods were significantly correlated with EBV infection (P =0.007).The EBV infection rate in haploidentical HSCT group (71.4%) was significantly higher than that in HLA-matched sibling HSCT group (0%) and autologous HSCT group (0%) (P =0.021 and 0.028),however,no significant differences were found between any other two groups (P>0.05).None of preconditioning regimen,GVHD prophylaxis programs or severity of aGVHD were correlated with EBV infection after second HSCT (P>0.05).Conclusion The incidence of CMV and EBV infection in patients undergoing second HSCT is high.Stem cell sources and transplant methods are associated with CMV and EBV infection after second HSCT.

9.
Chinese Journal of Hematology ; (12): 685-689, 2017.
Article in Chinese | WPRIM | ID: wpr-809183

ABSTRACT

Objective@#To summarize the clinical features, treatment and prognosis of patients with Epstein Barr virus (EBV) encephalitis after allogeneic hematopoietic stem cell transplantation (allo-HSCT) .@*Methods@#The clinical data of 7 patients with EBV encephalitis who had undergone allo-HSCT in the First Affiliated Hospital of Soochow University from January 2012 to December 2015 were reviewed.@*Results@#The incidence of EBV encephalitis was 0.70% (7/998) , and the median time was 63 (10-136) d after allo-HSCT. Seven patients had fever and mental disorder, of whom 4 cases of brain MRI were positive. Two patients received HLA-matched unrelated transplantation, while other 5 ones received haploidentical allo-HSCT. In conditioning regimen process, 7 patients were combined with anti-thymocyte globulin (ATG) to prevent graft versus host disease (GVHD) , of whom 6 patients had grade Ⅱ-Ⅳ acute GVHD. All patients of EBV-DNA were negative in CSF after taking anti-virus agent Rituximab. Until the last follow-up, a total of 3 patients died, 2 died of leukemia recurrence, 1 EBV encephalitis progression.@*Conclusion@#Once suspected EBV encephalitis after allo-HSCT, brain MRI and EBV-DNA in CSF should be detected, which could improve early diagnosis of EBV encephalitis. The usage of Rituximab was effective and well tolerated.

10.
Chinese Journal of Hematology ; (12): 667-672, 2017.
Article in Chinese | WPRIM | ID: wpr-809180

ABSTRACT

Objective@#To investigate the immune reconstruct regularity profile of KIR2DL1 and KIR3DL1 in unrelated-donor allogeneic hematopoietic stem cell transplantation (allo-HSCT) with KIR-AA genotype.@*Method@#75 donor-recipient pairs were performed by KIR genotying using PCR-SSP, and all donors were identified with KIR-AA genotype. Dynamic detections (including unrelated-donor on the day of transplantation and the recipient each month post allo-HSCT) of the expression of KIR2DL1/3DL1 on NK cell and mRNA level were performed in 291 cases using flow cytometry (FCM) and real-time fluorescent quantitation PCR (RT-qPCR) .@*Result@#①The median expression of KIR2DL1 in unrelated-donor on transplant’s day was 21.60%, the median expression of KIR2DL1 in recipient 1M, 2M, 3M and 3-6M after transplantation were 7.40%, 12.00%, 16.92%, 17.64% respectively. The median expression of KIR2DL1 in unrelated-donor on transplant’s day was 265.14 copies/10 000abl copies, the median expression of KIR2DL1 in recipient 1M, 2M, 3M, 3-6M, 6-9M, 9-12M after transplantation were 332.17, 438.31, 723.25, 414.17, 180.76 and 234.67 copies/10 000abl copies respectively. The median expression of KIR2DL1 on NK cells and mRNA level gradually increased at all time points after transplantation, and reached the highest expression at 3 months after transplantation. But mRNA expression levels increased earlier than NK cell membrane proteins. ②The median expression of KIR3DL1 in unrelated-donors on transplant’s day was 18.56%, the median expression of KIR3DL1 in recipient 1M, 2M, 3M, 3-6M after transplantation were 23.83%, 22.57%, 23.02%, 21.60% respectively. The median expression of KIR3DL1 in unrelated-donor on transplant’s day was 572.29 copies/10 000abl copies, the median expression of KIR3DL1 in recipient 1M, 2M, 3M, 3-6M, 6-9M, 9-12M after transplantation were 1 233.74, 1 140.42, 876.73, 1 057.07, 739.02 and 514.43 copies/10 000abl copies respectively. The median expression of KIR3DL1 on NK cells and mRNA level were higher than donors at 1 month after transplantation, and stable expression at all time points after transplantation, so mRNA and NK cell membrane proteins expression increased at the same time.@*Conclusion@#The immune reconstruct regularity of KIR2DL1 and KIR3DL1 gene were different, which provided an experimental basis for selecting the best time to detect the expressions of KIR2DL1 and 3DL1 after transplantation.

11.
Chinese Journal of Hematology ; (12): 421-426, 2017.
Article in Chinese | WPRIM | ID: wpr-808751

ABSTRACT

Objective@#To analyze the distribution and proportion of donor-specific activated killer cell immunoglobulin like receptor (aKIR) genes and their clinical application values in unrelated allogeneic hematopoietic stem cell transplantation (allo-HSCT) .@*Methods@#Retrospective analyses of KIR genotyping using polymerase chain reaction with sequence specific primers (PCR-SSP) were performed in 216 pairs of donors and recipients.@*Results@#The frequency of donor-specific KIR genes was 53.7% (116/216) in 216 patients receiving unrelated allo-HSCT, with the frequency of 78.3% (112/143) in the KIR genes mismatched group and 5.5% (4/73) in matched group. Of the 116 patients with detectable donor-specific KIR genes, 99.1% (115/116) patients had various donor-specific aKIR genes. Among 55 pairs of donors’ KIR-Bx genotype and patients’ KIR-AA genotype group, the most commonly observed genotypes were Bx1, Bx2, Bx3, Bx4, in which the donor-specific KIR genes were respectively KIR 3DS1, 2DL5A, 2DS5, 2DS1; KIR 3DS1, 2DL5A, 2DS3, 2DS1; KIR 2DS2, 2DL2; KIR 2DS2, 2DL2, 3DS1, 2DL5A, 2DS5, 2DS1. Of 44 pairs of donors’ KIR-AA genotype and patients’ KIR-Bx (AB) genotype group, 36.4% (16/44) recipients had donor-specific KIR2DS4 (FUL) gene. In 143 pairs of KIR mismatched group, the frequencies of donor-specific KIR genes were KIR2DS1 (35.7%) , KIR3DS1 (32.9%) , KIR2DS5 (29.4%) , KIR2DS4 (FUL) (25.9%) , KIR2DL2 (25.2%) , KIR2DS2 (24.5%) , KIR2DS3 (21.7%) and KIR3DL1 (8.4%) , respectively.@*Conclusion@#The donor-specific aKIR genes mainly existed in KIR mismatched group after unrelated allo-HSCT, and the different pairs of donors’ and patients’ KIR genotypes led to the diverse donor-specific aKIR. But there were higher specific aKIR genes in higher frequency of KIR AA, Bx1, Bx2, Bx3, Bx4 genotypes. All these can provide the experimental basis for studying the role of the donor-specific aKIR genes on the prognosis of HSCT.

12.
Chinese Journal of Radiological Medicine and Protection ; (12): 7-11, 2017.
Article in Chinese | WPRIM | ID: wpr-507057

ABSTRACT

Objective To investigate radiation-related human plasma metabolic features by using metabonomics method and to analyze relative metabolic pathway .Methods The plasma samples of 40 patients pre-and post-total body irradiation (TBI) from January 2012 to May 2014 were collected, and the effect of TBI on human plasma metabolites was studied by gas chromatography mass spectrometry ( GC-MS) , and the differential plasma metabolic features related to irradiation damage were screened . Results The levels of glucose, myristic acid, oxalic acid, 3-hydroxy butyric acid, urea, aspartic acid, valine, leucine, lysine and threonine in plasma were significantly (P<0.05) increased after TBI, while the levels of cholesterol, pyruvic acid, propionic acid, lactic acid, alanine, glycine, inositol, sorbitan, ethylene glycol and hypoxanthine were decreased drastically (P<0.05).Conclusions TBI could cause significant changes in the levels of human plasma metabolites including amino acid metabolism , glucose metabolism, lipid metabolism and so on.

14.
Chinese Journal of Hematology ; (12): 994-998, 2015.
Article in Chinese | WPRIM | ID: wpr-296101

ABSTRACT

<p><b>OBJECTIVE</b>To study KIR3DL1 expression level on NK cell surface of normal donors for hematopoietic stem cell transplantation(HSCT).</p><p><b>METHODS</b>Ninety- two donors were performed by using of KIR genotyping, HLA high resolution genotyping and KIR3DL1 expression level using sequencebased testing(SBT), PCR- sequence specific primer(SSP)and flow cytometry methods.</p><p><b>RESULTS</b>In 92 donors, the frequencies of KIR-A/A, Bx1, Bx2 for common genotypes were 46.74%(43/92), 18.48% (17/92)and 9.78%(9/92)respectively(P<0.001); KIR-A, B1, B2, B3 for common KIR haplo-type were 70.33%(128/182), 10.99%(20/182), 7.14%(13/182) and 4.39%(8/182) respectively(P<0.001); the frequencies of HLA-BW4/BW4, HLA-BW4/BW6, BW6/BW6 ligands were 13.79%, 67.81% and 18.39% respectively(P<0.001). KIR3DL1 middle expression level among haplo- type KIR- A/A and KIR- Bx, KIR-B/B were 18.77%(3.11%-49.24%), 13.14%(1.70%-63.32%)and 0.37%(0.20%-2.60%)respectively (P<0.05). KIR3DL1 expression level[18.77%(3.11%-49.24%)]in haplo-type KIR-A/A was higher than haplo-type KIR-Bx at the same time did not express 2DL2 group[11.20%(3.50%-36.08%)](P=0.019). KIR3DL1 expression level in recognition group(HLA-BW4 positive group)[17.61%(1.40%-49.24%)] was higher than KIR3DL1 unrecognized group(HLA-BW4 negative group)[10.60%(3.50%-18.56%)] (P=0.006).</p><p><b>CONCLUSION</b>The expression levels of KIR3DL1 in different KIR genotypes, haplotypes and HLA ligands were statistically significance.</p>


Subject(s)
Humans , Genotype , HLA-B Antigens , Genetics , Haplotypes , Hematopoietic Stem Cell Transplantation , Hematopoietic Stem Cells , Killer Cells, Natural , Metabolism , Ligands , Receptors, KIR3DL1 , Genetics , Tissue Donors
15.
Pakistan Journal of Medical Sciences. 2015; 31 (6): 1389-1393
in English | IMEMR | ID: emr-175114

ABSTRACT

Background and Objective: Recombinant-activated factor VII [rVIIa] is a vitamin K-dependent glycoprotein that is an analog of the naturally occurring protease. It has an off-label use to control life-threatening bleeding that is refractory to other measures and was shown to decrease transfusion requirements. Gastrointestinal [GI] bleeding is a severe complication following hematopoietic stem cell transplantation [HSCT] in patients with thrombocytopenia, while hemostatic measures based on antifibrinolytic or transfusion therapy may not always be successful. The present study investigated the treatment with rFVIIa in severe GI bleeding among thrombocytopenia patients undergoing HSCT


Methods: rFVIIa was given as a single dose of 60 microg/kg in patients with GI bleeding following hematopoietic stem cell transplantation [HSCT]


Results: Among all patients enrolled, 12 [75%] of 16 patients obtained a response, of which 5 achieved a complete response and 7 achieved a partial response. The 4 remiaing patients [25%] had no response. Nine patients [56.3%] died in a follow-up of 90 days. No thromboembolic events wereassociated with the drug administration occurred


Conclusions: Our study showed that rFVIIa may represent an additional therapeutic option in such cases


Subject(s)
Humans , Female , Male , Adult , Middle Aged , Recombinant Proteins , Gastrointestinal Hemorrhage , Thrombocytopenia
16.
Chinese Journal of Hematology ; (12): 129-133, 2014.
Article in Chinese | WPRIM | ID: wpr-295694

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the efficacy and safety of second-generation tyrosine kinase inhibitors (TK-II) combined with allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of high-risk Philadelphia chromosome positive (Ph⁺) leukemia.</p><p><b>METHODS</b>The clinical data of 17 cases of high-risk Ph⁺ leukemia patients underwent allo-HSCT were retrospectively analyzed, including 1 case in accelerated phase and 7 cases in blast crises of chronic myeloid leukemia, and 9 cases of Ph⁺ acute lymphoblastic leukemia. Nilotinib or Dasatinib were administered before and (or) after allo-HSCT in all patients.</p><p><b>RESULTS</b>All patients successfully engrafted. Median times to neutrophil and platelet recovery were 12 days (range 10-14) and 15 days (range 11- 23), respectively. Acute GVHD developed in 7 patients: 6 patients had grade 1 to 2 and 1 patient grade 3. Chronic GVHD developed in 6 patients, all were limited and no lethal GVHD occurred. At a median follow-up of 17(range 3-60) months, 11(64.7%) patients survived disease free, 6 patients relapsed and 5 died.</p><p><b>CONCLUSION</b>TK-II combined with allo-HSCT effectively improved the remission rate of high-risk Ph⁺ leukemia and reduced recurrence after allo-HSCT, which represented an important improvement in the treatment of patients with high-risk Ph+ leukemia.</p>


Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Hematopoietic Stem Cell Transplantation , Leukemia, Myelogenous, Chronic, BCR-ABL Positive , Therapeutics , Philadelphia Chromosome , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Therapeutics , Protein Kinase Inhibitors , Therapeutic Uses , Protein-Tyrosine Kinases , Retrospective Studies , Transplantation, Homologous
17.
Chinese Journal of Medical Aesthetics and Cosmetology ; (6): 36-39, 2014.
Article in Chinese | WPRIM | ID: wpr-671736

ABSTRACT

Objective To investigate the efficacy and safety of photodynamic therapy (PDT) in the treatment of different types of rosacea,and to evaluate its benefit by comparing its efficacy with 10% sodium sulfacetamide and 5% sulfur emollient foam.Methods Forty-three subjects with rosacea were enrolled in this study.They were randomized to be treated with PDT (twenty-three subjects) or 10% sodium sulfacetamide and 5% sulfur emollient foam (twenty subjects).PDT group subjects received PDT once every seven to ten days for three times while the 10% sodium sulfacetamide or 5%sulfur emollient foam was applied 2 times per day for thirty days in the other group.Digital photographs were taken before and after one month of treatment in both groups.Blinded independent physicians graded improvement based on these photographs utilizing a percentile evaluation scale.A more than sixty percent remission proved the treatment to be effective.All the complications occurred during the therapy were taken notes and their severity was classified by the subjects.Two dermatology life quality index forms were completed before and after treatment by the subjects to evaluate the change in terms of their quality of life.Results After one month of treatment,PDT proved to be effective on sixty-five percent of subjects (seventy-one percent on papulopustular rosacea and fifty percent on erythematotelangiectatic rosacea).The emollient foam proved to be effective on thirty-five percent of subjects.Statistically significant difference was observed between the overall effective rate of PDT and emollient foam (P<0.05).In addition,a greater improvement in terms of the quality of life was experienced by the PDT group subjects.No irreversible adverse event was observed in both groups during the study.Conclusions PDT proves to be an effective and safe treatment for rosacea with satisfactory efficacy,significant improvement in patients' quality of life and few irreversible side effects.

18.
Chinese Journal of Organ Transplantation ; (12): 419-423, 2013.
Article in Chinese | WPRIM | ID: wpr-437013

ABSTRACT

Objective To explore the non-HLA gene polymorphisms that influence CMV infection after hematopoietic stem cell transplantation (HSCT).Method Non-HLA gene (ACE,CD14,MPO,MBL) single nucleotide polymorphisms were determined by using sequence-specific primer polymerase chain reaction (PCR-SSP) and sequencing in 64 pairs of donors and recipients before HSCT and the differences of non-HLA gene were analysed in CMV positive and negative patients Results The distribution of ACE gene single nucleotide polymorphism was DD (14/128,10.9%),ID (72/128,56.3%),and Ⅱ (42/128,38.8%).The distribution of CD14-159 allele gene single nucleotide polymorphism was CC (18/128,14.1%),CT (81/128,63.3%),and TT (29/128,22.7%).The distribution of MPO-463 allele gene single nucleotide polyrnorphism was G (100)/128,78.1%),A (2/128,1.6%),and GA (26/128,20.3%).The distribution of MBL gene single nucleotide polymorphism was H (28/128,21.9%),HL (73/128,57.0%),L (27/128,21.1%),Y (87/128,68.0%),YX (38/128,29.7%),X (3/128,2.3%),A (94/128,73.4%),AB (32/ 128,25.0%),and B (2/128,1.6%).The allele frequency of ACE,CD14 and MPO shoed no significant differcence between CMV positive and negative patients The gene frequency of MBL-HL was increased in CMV positive group.Conclusion MBL gene single nucleotide polymorphisrns may influence CMV infection after HSCT.

19.
Chinese Journal of Internal Medicine ; (12): 161-165, 2013.
Article in Chinese | WPRIM | ID: wpr-432318

ABSTRACT

Objective To explore the influence of the killer cell immunoglobulin like receptor (KIR) gene polymorphism on cytomegalovirus (CMV) infection and pathogenesis after hematopoietic stem cell transplantation (HSCT).Methods The KIR genotype was determined by sequence-specific primer polymerase chain reaction (PCR-SSP) in 138 pairs of donors and recipients before HSCT during October,2005 and May,2011.Posttransplant monitoring for CMVpp65 antigen was performed by indirect immune histochemically assays since week 2 after transplantation.The differences between CMV positive group and negative group,inhibitive and active KIR of donors and recipients,and KIR haplotype frequency of donors and recipients were analyzed.Results There were no significant differences in frequency of KIR gene and haplotype AA,AB,BB between the donors and recipients.The frequencies of 2DS2 and 2DS4 * 003-007 of donors in CMV positive group were obviously lower than those in CMV negative group with significant differences(8% vs 16%,P =0.0420;3% vs 13%,P =0.0050).There was no significant difference in KIR gene between CMV positive group and CMV negative group.The CMV infection rates of haplotype AA,BB,AB donors were 64.38%,36.84% and 50.00%,while CMV infection rates of haplotype AA,BB,AB recipients were 53.73%,46.15% and 51.72%,respectively.The CMV infection rate was higher in the patients received KIR haplotype AA donor than in those received KIR haplotype BB donor (36.84% vs 64.38%,P =0.0299).2DS4 * 003-007 and haplotype BB of donor were found associated with CMV infection in multifactor analysis.Conclusion KIR genotypes of donors are associated with CMV infection after HSCT.

20.
Saudi Medical Journal. 2012; 33 (2): 139-145
in English | IMEMR | ID: emr-117118

ABSTRACT

To investigate the effects of ligustrazine on acute lung injury induced by blunt chest trauma. This study was performed in the Animal Center of Renmin Hospital of Wuhan University, Wuhan, China between September 2009 and September 2010. Male Sprague-Dawley rats were randomly allocated into 4 groups: sham control group [group C, n=60], ligustrazine treatment group [group C+L, n=60], blunt chest trauma model group [group T, n=60], and the trauma plus ligustrazine treatment group [group T+L, n=60]. The lung contusion was induced as previously described. Animals of the T+L group were intraperitoneally injected with ligustrazine. Acute lung injury was evaluated by histopathology of the lung, and apoptosis was determined by terminal dUTP nick-labeling. Pulmonary edema was estimated using Evans blue dye extravasation and wet/dry ratios of lung tissue. The expression of caspase-3, Bcl-2, and Bax in the lung, as well as blood plasma tumor necrosis factor [TNF] -a were also measured. The ligustrazine treatment significantly attenuated lung injury induced by blunt chest trauma, as shown by decreased apoptosis index, and pulmonary edema [p=0.04]. The blood plasma TNF-alpha level after blunt chest trauma significantly deceased after the administration of ligustrazine [p=0.03] In addition, the ligustrazine treatment significantly alleviated the expression of caspase-3 [p=0.03], and increased the ratio of Bcl-2toBax [p<0.03]. Ligustrazine effectively protects lung injury induced by blunt chest trauma, and the protective effects seem to be mediated by attenuation of cell apoptosis via an increased ratio of Bcl-2/Bax and decreased caspase-3 activity

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