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  1. Article ; Online: Characteristics, risk factors and outcome of BKV nephropathy in kidney transplant recipients: a case-control study.

    Gras, Julien / Le Flécher, Arnaud / Dupont, Axelle / Vérine, Jérôme / Amara, Ali / Delaugerre, Constance / Molina, Jean Michel / Peraldi, Marie Noëlle

    BMC infectious diseases

    2023  Volume 23, Issue 1, Page(s) 74

    Abstract: Background: Following kidney transplantation, BK virus associated nephropathy (BKVN) occurs in 1 to 10% of kidney transplant recipients (KTR) and represents a major cause of graft loss. We aim at identifying factors associated with biopsy proven BKVN ... ...

    Abstract Background: Following kidney transplantation, BK virus associated nephropathy (BKVN) occurs in 1 to 10% of kidney transplant recipients (KTR) and represents a major cause of graft loss. We aim at identifying factors associated with biopsy proven BKVN among KTR.
    Methods: We conducted a retrospective case-control study including all KTR with a biopsy-proven diagnosis of BKVN between 2005 and 2019. Clinical characteristics and outcome were described. For each case, one control KTR without BKV infection was identified and matched by age, transplant date, and donor status. Factors associated with BKVN diagnosis were identified using exact conditional logistic regression. Comparative survival was described using Kaplan-Meier estimator.
    Results: Sixty-four cases of BKVN were identified among 1737 new kidney transplantation (3.7% prevalence). Clinical characteristics did not differ between groups, except for a higher c-PRA among cases. BKVN occurred in a median time of 11 (5-14.5) months after KT, and was associated with a significantly impaired graft function at diagnosis. Following BKVN, 61 (95%) of the patients had immunosuppression reduction, which led to BKV DNAemia resolution in 49% of cases. In multivariate analysis, factors associated with BKVN diagnosis were lymphopenia < 500/mm
    Conclusions: BKVN remains a severe complication in KTR and is associated with an increased risk for acute rejection and return to dialysis. Lymphopenia below 500/mm
    MeSH term(s) Humans ; Kidney Transplantation/adverse effects ; Case-Control Studies ; Retrospective Studies ; Kidney Diseases/epidemiology ; Nephritis, Interstitial/etiology ; Transplant Recipients ; Risk Factors ; Lymphopenia/complications ; Polyomavirus Infections/diagnosis ; BK Virus ; Tumor Virus Infections/epidemiology ; Graft Rejection
    Language English
    Publishing date 2023-02-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041550-3
    ISSN 1471-2334 ; 1471-2334
    ISSN (online) 1471-2334
    ISSN 1471-2334
    DOI 10.1186/s12879-023-08043-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Use of a Belatacept-based Immunosuppression for Kidney Transplantation From Donors After Circulatory Death: A Paired Kidney Analysis.

    Eid, Rita / Scemla, Anne / Giral, Magali / Arzouk, Nadia / Bertrand, Dominique / Peraldi, Marie-Noëlle / Mesnard, Laurent / Longuet, Helene / Maanaoui, Mehdi / Desbuissons, Geoffroy / Lefevre, Edouard / Snanoudj, Renaud

    Transplantation direct

    2024  Volume 10, Issue 5, Page(s) e1615

    Abstract: Background: Efficacy and safety of belatacept have not been specifically reported for kidney transplantations from donors after circulatory death.: Methods: In this retrospective multicenter paired kidney study, we compared the outcome of kidney ... ...

    Abstract Background: Efficacy and safety of belatacept have not been specifically reported for kidney transplantations from donors after circulatory death.
    Methods: In this retrospective multicenter paired kidney study, we compared the outcome of kidney transplantations with a belatacept-based to a calcineurin inhibitor (CNI)-based immunosuppression. We included all kidney transplant recipients from donors after uncontrolled or controlled circulatory death performed in our center between February 2015 and October 2020 and treated with belatacept (n = 31). The control group included the recipients of the contralateral kidney that were treated with CNI in 8 other centers (tacrolimus n = 29, cyclosporine n = 2).
    Results: There was no difference in the rate of delayed graft function. A higher incidence of biopsy-proven rejections was noted in the belatacept group (24 versus 6 episodes). Estimated glomerular filtration rate (eGFR) was significantly higher in the belatacept group at 3-, 12-, and 36-mo posttransplant, but the slope of eGFR was similar in the 2 groups. During a mean follow-up of 4.1 y, 12 patients discontinued belatacept and 2 patients were switched from CNI to belatacept. For patients who remained on belatacept, eGFR mean value and slope were significantly higher during the whole follow-up. At 5 y, eGFR was 80.7 ± 18.5 with belatacept versus 56.3 ± 22.0 mL/min/1.73 m
    Conclusions: The use of belatacept for kidney transplants from either uncontrolled or controlled donors after circulatory death resulted in a better medium-term renal function for patients remaining on belatacept despite similar rates of delayed graft function and higher rates of cellular rejection.
    Language English
    Publishing date 2024-04-11
    Publishing country United States
    Document type Journal Article
    ISSN 2373-8731
    ISSN 2373-8731
    DOI 10.1097/TXD.0000000000001615
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Cryptococcus neoformans meningitis in kidney transplant recipients: A diagnostic and therapeutic challenge

    Gras, Julien / Tamzali, Yanis / Denis, Blandine / Gits-Muselli, Maud / Bretagne, Stéphane / Peraldi, Marie-Noëlle / Molina, Jean-Michel

    Medical mycology case reports. 2021 June, v. 32

    2021  

    Abstract: Cryptococcosis is the third most common invasive fungal infection in solid organ transplant recipients. We describe three cases of neuro-meningeal cryptococcosis occurring among kidney transplant (KT) patients, and discuss the diagnostic and therapeutic ... ...

    Abstract Cryptococcosis is the third most common invasive fungal infection in solid organ transplant recipients. We describe three cases of neuro-meningeal cryptococcosis occurring among kidney transplant (KT) patients, and discuss the diagnostic and therapeutic challenges in this context.Median time from KT to infection was 6 months [range: 3–9]. The most common clinical manifestations at diagnosis were fever (2/3), headache (2/3), and confusion (2/3); none had extra-neurological involvement. CrAg was positive in all cases at diagnosis both in serum and cerebrospinal fluid (CSF). For two patients, analysis of previous samples showed that CrAg was detected in plasma up to 4 weeks before diagnosis. All patients received induction treatment with liposomal amphotericin-B (L-AmB) and flucytosine for a median duration of 10 days [range: 7–14], followed by fluconazole maintenance therapy. Acute kidney injury secondary to L-AmB therapy was observed in only one case, but all patients had a tacrolimus overdose following initiation of maintenance therapy due to drug-drug interactions between fluconazole and tacrolimus.Among KTR, early detection of Cryptococcus meningitis using serum CrAg is possible. Close monitoring of renal function during treatment is essential due to the nephrotoxicity of L-AmB, but also drug-drug interactions between fluconazole and calcineurin inhibitors.
    Keywords Cryptococcus neoformans ; acute kidney injury ; amphotericin B ; blood serum ; cerebrospinal fluid ; cryptococcosis ; fever ; fluconazole ; flucytosine ; fungi ; headache ; kidney transplant ; meningitis ; mycology ; nephrotoxicity ; overdose ; renal function ; tacrolimus
    Language English
    Dates of publication 2021-06
    Size p. 84-87.
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ISSN 2211-7539
    DOI 10.1016/j.mmcr.2021.04.005
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Immunogenicity of Anti-SARS-CoV-2 Vaccination After Kidney Transplantation in Kidney Transplant Recipients Vaccinated Before Transplantation.

    Uro-Coste, Charlotte / Sberro-Soussan, Rebecca / Martinez, Frank / Amrouche, Lucile / Aubert, Olivier / Leruez-Ville, Marianne / Delage, Claire / Peraldi, Marie Noëlle / Legendre, Christophe / Lanternier, Fanny / Zuber, Julien / Anglicheau, Dany / Scemla, Anne / Chavarot, Nathalie

    Transplantation

    2023  Volume 107, Issue 8, Page(s) e213–e214

    MeSH term(s) Humans ; Kidney Transplantation/adverse effects ; COVID-19/prevention & control ; Transplant Recipients ; Vaccination ; Antibodies, Viral
    Chemical Substances Antibodies, Viral
    Language English
    Publishing date 2023-05-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208424-7
    ISSN 1534-6080 ; 0041-1337
    ISSN (online) 1534-6080
    ISSN 0041-1337
    DOI 10.1097/TP.0000000000004654
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: BK virus genotypes and humoral response in kidney transplant recipients with BKV associated nephropathy.

    Gras, Julien / Nere, Marie Laure / Peraldi, Marie Noëlle / Bonnet-Madin, Lucie / Salmona, Maud / Taupin, Jean Luc / Desgrandchamps, François / Verine, Jérôme / Brochot, Etienne / Amara, Ali / Molina, Jean Michel / Delaugerre, Constance

    Transplant infectious disease : an official journal of the Transplantation Society

    2023  Volume 25, Issue 2, Page(s) e14012

    Abstract: Background: Among kidney transplant recipients (KTR) with BK virus associated nephropathy (BKVN), BKV genotypes' evolution and anti-BKV humoral response are not well established. We aim to analyze BKV replication and genetic evolution following ... ...

    Abstract Background: Among kidney transplant recipients (KTR) with BK virus associated nephropathy (BKVN), BKV genotypes' evolution and anti-BKV humoral response are not well established. We aim to analyze BKV replication and genetic evolution following transplantation, and characterize concomitant anti-BKV-VP1 humoral response.
    Methods: We retrospectively analyzed 32 cases of biopsy-proven BKVN. Stored plasma and kidney biopsies were tested for BKV viral load, and VP1 sequencing performed on positive samples. BKV-VP1 genotype-specific neutralizing antibodies (NAbs) titers were determined at transplantation and BKVN.
    Results: At the time of BKVN diagnosis, BKV viral load was 8.2 log
    Conclusion: Altogether, our data suggest that among some KTR with BKVN, the BKV genotype from the donor may not be responsible for BKVN pathogenesis.
    MeSH term(s) Humans ; Kidney Transplantation/adverse effects ; BK Virus ; Viremia/complications ; Retrospective Studies ; Kidney Diseases ; Transplant Recipients ; Polyomavirus Infections ; Nephritis, Interstitial ; Tumor Virus Infections ; Genotype
    Language English
    Publishing date 2023-02-07
    Publishing country Denmark
    Document type Journal Article
    ZDB-ID 1476094-0
    ISSN 1399-3062 ; 1398-2273
    ISSN (online) 1399-3062
    ISSN 1398-2273
    DOI 10.1111/tid.14012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Cryptococcus neoformans

    Gras, Julien / Tamzali, Yanis / Denis, Blandine / Gits-Muselli, Maud / Bretagne, Stéphane / Peraldi, Marie-Noëlle / Molina, Jean-Michel

    Medical mycology case reports

    2021  Volume 32, Page(s) 84–87

    Abstract: Cryptococcosis is the third most common invasive fungal infection in solid organ transplant recipients. We describe three cases of neuro-meningeal cryptococcosis occurring among kidney transplant (KT) patients, and discuss the diagnostic and therapeutic ... ...

    Abstract Cryptococcosis is the third most common invasive fungal infection in solid organ transplant recipients. We describe three cases of neuro-meningeal cryptococcosis occurring among kidney transplant (KT) patients, and discuss the diagnostic and therapeutic challenges in this context. Median time from KT to infection was 6 months [range: 3-9]. The most common clinical manifestations at diagnosis were fever (2/3), headache (2/3), and confusion (2/3); none had extra-neurological involvement. CrAg was positive in all cases at diagnosis both in serum and cerebrospinal fluid (CSF). For two patients, analysis of previous samples showed that CrAg was detected in plasma up to 4 weeks before diagnosis. All patients received induction treatment with liposomal amphotericin-B (L-AmB) and flucytosine for a median duration of 10 days [range: 7-14], followed by fluconazole maintenance therapy. Acute kidney injury secondary to L-AmB therapy was observed in only one case, but all patients had a tacrolimus overdose following initiation of maintenance therapy due to drug-drug interactions between fluconazole and tacrolimus. Among KTR, early detection of
    Language English
    Publishing date 2021-05-04
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2211-7539
    ISSN 2211-7539
    DOI 10.1016/j.mmcr.2021.04.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Clinical characteristics, risk factors and outcome of severe Norovirus infection in kidney transplant patients: a case-control study.

    Gras, Julien / Abdel-Nabey, Moustafa / Dupont, Axelle / Le Goff, Jérôme / Molina, Jean-Michel / Peraldi, Marie Noëlle

    BMC infectious diseases

    2021  Volume 21, Issue 1, Page(s) 351

    Abstract: Background: Human Norovirus (HuNoV) has recently been identified as a major cause of diarrhea among kidney transplant recipients (KTR). Data regarding risk factors associated with the occurrence of HuNoV infection, and its long-term impact on kidney ... ...

    Abstract Background: Human Norovirus (HuNoV) has recently been identified as a major cause of diarrhea among kidney transplant recipients (KTR). Data regarding risk factors associated with the occurrence of HuNoV infection, and its long-term impact on kidney function are lacking.
    Methods: We conducted a retrospective case-control study including all KTR with a diagnosis of HuNoV diarrhea. Each case was matched to a single control according to age and date of transplantation, randomly selected among our KTR cohort and who did not develop HuNoV infection. Risk factors associated with HuNoV infection were identified using conditional logistic regression, and survival was estimated using Kaplan-Meier estimator.
    Results: From January 2012 to April 2018, 72 cases of NoV diarrhea were identified among 985 new KT, leading to a prevalence of HuNoV infection of 7.3%. Median time between kidney transplantation and diagnosis was 46.5 months (Inter Quartile Range [IQR]:17.8-81.5), and the median duration of symptoms 40 days (IQR: 15-66.2). Following diagnosis, 93% of the cases had a reduction of immunosuppression. During follow-up, de novo Donor Specific Antibody (DSA) were observed in 8 (9%) cases but none of the controls (p = 0.01). Acute rejection episodes were significantly more frequent among cases (13.8% versus 4.2% in controls; p = 0,03), but there was no difference in serum creatinine level at last follow-up between the two groups (p = 0.08). Pre-transplant diabetes and lymphopenia below 1000/mm
    Conclusion: HuNoV infection is a late-onset and prolonged infection among KTR. The current management, based on the reduction of immunosuppressive treatment, is responsible for the appearance of de novo DSA and an increase in acute rejection episodes.
    MeSH term(s) Adult ; Caliciviridae Infections/diagnosis ; Caliciviridae Infections/etiology ; Caliciviridae Infections/pathology ; Case-Control Studies ; Diabetes Complications/pathology ; Diarrhea/diagnosis ; Diarrhea/virology ; Female ; Graft Rejection/etiology ; Graft Rejection/mortality ; Graft Rejection/prevention & control ; Humans ; Immunosuppressive Agents/therapeutic use ; Kaplan-Meier Estimate ; Kidney Transplantation/adverse effects ; Logistic Models ; Lymphopenia/complications ; Lymphopenia/pathology ; Male ; Middle Aged ; Norovirus/isolation & purification ; Odds Ratio ; Retrospective Studies ; Risk Factors ; Severity of Illness Index
    Chemical Substances Immunosuppressive Agents
    Language English
    Publishing date 2021-04-15
    Publishing country England
    Document type Journal Article
    ISSN 1471-2334
    ISSN (online) 1471-2334
    DOI 10.1186/s12879-021-06062-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Conversion to belatacept after lung transplantation: Report of 10 cases.

    Brugière, Olivier / Vallée, Alexandre / Raimbourg, Quentin / Peraldi, Marie-Noelle / de Verdière, Sylvie Colin / Beaumont, Laurence / Hamid, Abdulmonem / Zrounba, Mathilde / Roux, Antoine / Picard, Clément / Parquin, François / Glorion, Matthieu / Oniszczuk, Julie / Hertig, Alexandre / Mal, Hervé / Bunel, Vincent

    PloS one

    2023  Volume 18, Issue 3, Page(s) e0281492

    Abstract: Background: Calcineurin inhibitors (CNIs) remain the cornerstone of maintenance immunosuppression (IS) after lung transplantation (LTx), although CNI-related life-threatening toxic effects may occur. Belatacept, a novel immunosuppressant that blocks a T- ...

    Abstract Background: Calcineurin inhibitors (CNIs) remain the cornerstone of maintenance immunosuppression (IS) after lung transplantation (LTx), although CNI-related life-threatening toxic effects may occur. Belatacept, a novel immunosuppressant that blocks a T-cell co-stimulation pathway, is a non-nephrotoxic drug indicated as an alternative to CNIs in kidney Tx. In LTx, there are only a few reports of belatacept conversion as a CNI-free or CNI-sparing IS treatment.
    Methods: We reviewed a series of 10 LTx recipients with conversion to a CNI-free belatacept IS regimen within the first year post-LTx (n = 7) or a belatacept/low-dose CNI combination after the first year (n = 3).
    Results: Use of belatacept was triggered by severe renal failure in 9 patients and under-IS with previous other IS-related toxicities in 1 patient. Mean estimated glomerular filtration rate after starting belatacept significantly improved at 6 months after initiation and at the last-follow-up (p = 0.006, and p = 0.002 respectively). The incidence of recurrent and/or severe acute cellular rejection (ACR) episodes was high in patients with CNI-free belatacept-based IS (n = 4/7). Chronic graft allograft dysfunction developed in 2 of 9 recipients under belatacept IS. Belatacept was stopped in 6 patients because of recurrent/severe ACR (n = 3), recurrent opportunistic infections (n = 1), center modified policy (n = 1), or other cause (n = 1).
    Conclusion: Early conversion to CNI-free belatacept-based IS improved renal function in this series but was counterbalanced by a high incidence of recurrent ACR, including life-threatening episodes. Other studies are needed to better determine the indications for its use after LTx, possibly with lower immunological risk IS regimens, such as CNI-sparing belatacept.
    MeSH term(s) Humans ; Abatacept/therapeutic use ; Abatacept/pharmacology ; Calcineurin Inhibitors/adverse effects ; Graft Rejection/drug therapy ; Graft Rejection/prevention & control ; Graft Survival ; Immunosuppressive Agents/adverse effects ; Kidney Transplantation/adverse effects ; Lung Transplantation/adverse effects
    Chemical Substances Abatacept (7D0YB67S97) ; Calcineurin Inhibitors ; Immunosuppressive Agents
    Language English
    Publishing date 2023-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0281492
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Estimating Extracellular Fluid Volume in Healthy Individuals: Evaluation of Existing Formulae and Development of a New Equation.

    Faucon, Anne-Laure / Flamant, Martin / Delanaye, Pierre / Lambert, Oriane / Essig, Marie / Peraldi, Marie-Noëlle / Tabibzadeh, Nahid / Haymann, Jean-Philippe / Stengel, Bénédicte / Geri, Guillaume / Vidal-Petiot, Emmanuelle

    Kidney international reports

    2022  Volume 7, Issue 4, Page(s) 810–822

    Abstract: Introduction: Several clinical settings require an accurate estimation of the physiologically expected extracellular fluid volume (ECFV). We aimed to analyze the performances of existing ECFV-estimating equations and to develop a new equation.: ... ...

    Abstract Introduction: Several clinical settings require an accurate estimation of the physiologically expected extracellular fluid volume (ECFV). We aimed to analyze the performances of existing ECFV-estimating equations and to develop a new equation.
    Methods: The performances of 11 ECFV-estimating equations were analyzed in 228 healthy kidney donor candidates (Bichat Hospital, Paris, France) who underwent ECFV measurement using the distribution volume of
    Results: Participants from Bichat (mean age 45.2 ± 12.0 years, 43.0% men) and Tenon (47.8 ± 10.3 years, 29.6% men) hospitals had a mean measured ECFV of 15.4 ± 2.8 l and 15.1 ± 2.1 l, respectively. Available ECFV-estimating formulae have highly variable precision and accuracy. The new equation incorporating body weight, height, sex, and age had better precision and accuracy than all other equations in the external validation cohort, with a median bias of -0.20 (95% CI: -0.35 to -0.05) l versus -2.63 (-2.87 to -2.42) l to -0.57 (- 0.83 to -0.40) l and 0.21 (0.12 to 0.43) l to 2.89 (2.65 to 3.11) l, for underestimating and overestimating equations, respectively, an interquartile range for the bias of 0.88 (0.70 to 1.08) l versus 0.91 (0.71 to 1.20) l to 1.93 (1.67 to 2.25) l, and an accuracy within 10% of 90.9% (83.8 to 94.4) versus 88.0% (81.0 to 92.3) to 8.5% (4.2 to 13.4). These results were consistent across subgroups defined by sex, body mass index (BMI), body surface area (BSA), age, and ethnicity.
    Conclusion: We developed and validated a new equation to estimate the individual reference value of ECFV, which is easily usable in clinical practice. Further validation in cohorts including individuals of extreme age and corpulence remains needed.
    Language English
    Publishing date 2022-01-26
    Publishing country United States
    Document type Journal Article
    ISSN 2468-0249
    ISSN (online) 2468-0249
    DOI 10.1016/j.ekir.2022.01.1057
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: TRANSPLANTATION RÉNALE ABO INCOMPATIBLE.

    Abboud, Imad / Peraldi, Marie-noelle / Glotz, Denis

    Le Journal medical libanais. The Lebanese medical journal

    2015  Volume 63, Issue 3, Page(s) 159–163

    Abstract: ABC-incompatible (ABOi) living donor renal transplantation is being developed since the 80s, and may provide a significant source of organs. Blood group A and B antigens are expressed not only on red blood cells but also on renal vascular endothelial and ...

    Title translation Renal transplantation from ABO incompatible donors.
    Abstract ABC-incompatible (ABOi) living donor renal transplantation is being developed since the 80s, and may provide a significant source of organs. Blood group A and B antigens are expressed not only on red blood cells but also on renal vascular endothelial and renal epithelial membranes. Each individual has preformed natural antibodies against his/ her absent A and/or B antigens. These antibodies may directly damage the ABOi allograft and cause its diffuse thrombosis and primary non-function. ABOi allogratf recipients are conditioned with one dose of rituximab (as a "pharmacological splenectomy") and oral immunosuppressive treatment is introduced several days pre-operatively. Anti A/B titers are lowered by plasmapheresis or specific immunoadsorption. Close follow-up is mandatory in the first two weeks after transplantation, due to higher acute humoral rejection risk, until reaching an "accommodation" state. Thereafter, graft and patient survivals are the same as those of ABO compatible renal transplantations.
    MeSH term(s) ABO Blood-Group System/immunology ; Blood Group Incompatibility/immunology ; Clinical Protocols ; Humans ; Immunosuppression ; Kidney Transplantation ; Tissue Donors ; Transplantation Immunology
    Chemical Substances ABO Blood-Group System
    Language French
    Publishing date 2015-07
    Publishing country Lebanon
    Document type English Abstract ; Journal Article
    ZDB-ID 412536-8
    ISSN 0023-9852
    ISSN 0023-9852
    Database MEDical Literature Analysis and Retrieval System OnLINE

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