scholarly journals Donor CYP3A5 Gene Polymorphism Alone Cannot Predict Tacrolimus Intrarenal Concentration in Renal Transplant Recipients

2020 ◽  
Vol 21 (8) ◽  
pp. 2976
Author(s):  
Mengyu Zhang ◽  
Soichiro Tajima ◽  
Tomohiro Shigematsu ◽  
Rao Fu ◽  
Hiroshi Noguchi ◽  
...  
Keyword(s):  
Renal Transplantation ◽  
Renal Transplant ◽  
Gene Polymorphism ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Renal Metabolism ◽  
Renal Tubular Cells ◽  
Transplant Patients ◽  
Graft Outcome ◽  
Cyp3a5 Gene

CYP3A5 gene polymorphism in recipients plays an important role in tacrolimus blood pharmacokinetics after renal transplantation. Even though CYP3A5 protein is expressed in renal tubular cells, little is known about the influence on the tacrolimus intrarenal exposure and hence graft outcome. The aim of our study was to investigate how the tacrolimus intrarenal concentration (Ctissue) could be predicted based on donor CYP3A5 gene polymorphism in renal transplant recipients. A total of 52 Japanese renal transplant patients receiving tacrolimus were enrolled in this study. Seventy-four renal biopsy specimens were obtained at 3 months and 1 year after transplantation to determine the donor CYP3A5 polymorphism and measure the Ctissue by liquid chromatography-tandem mass spectrometry (LC-MS-MS). The tacrolimus Ctissue ranged from 52 to 399 pg/mg tissue (n = 74) and was weak but significantly correlated with tacrolimus trough concentration (C0) at 3 months after transplantation (Spearman, r = 0.3560, p = 0.0096). No significant relationship was observed between the donor CYP3A5 gene polymorphism and Ctissue or Ctissue/C0. These data showed that the tacrolimus systemic level has an impact on tacrolimus renal accumulation after renal transplantation. However, donor CYP3A5 gene polymorphism alone cannot be used to predict tacrolimus intrarenal exposure. This study may be valuable for exploring tacrolimus renal metabolism and toxicology mechanism in renal transplant recipients.

P1763TUBERCULOSIS IN RENAL TRANSPLANT RECEPIENTS - DO RITUXIMAB AND OTHER IMMUNOSUPRESSION HAVE A ROLE?

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Anupma Kaul ◽  
Dharmendra Bhaduria ◽  
Narayan Prasad ◽  
Amit Gupta
Keyword(s):  
Renal Transplantation ◽  
Renal Transplant ◽  
Immunosuppressive Agents ◽  
Induction Agent ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Transplant Patients ◽  
Significant Difference ◽  
High Prevalence ◽  
Mean Time

Abstract Background and Aims Rituximab is an anti CD 20 agent used widely in renal transplant recipients. Its use is associated with various infections;however, its association with Tuberculosis (TB) is not well established and has not been studied in post renal transplantation patients. Method This is a single centre, retrospective analysis of 56 renal transplant recipients who received rituximab for various reasons and 287 post renal transplant patients who did not receive rituximab during the study period from January 2013 to June 2017. The association between use of rituximab and incidence of TB was studied. Other factors associated with tuberculosis were also investigated. Results Baseline characteristics were similar in both the groups. Mean time for occurrence of TB was 18.4 + 10.6 months after renal transplantation. Rituximab use was not significantly associated with tuberculosis or any other infection. Higher number of rejection episodes (60% vs 32.72%, p=0.029) was the only factor associated with greater incidence of TB. However, no specific type of rejection was associated with tuberculosis. Use of plasmapheresis in post transplant period for treatment of humoral rejections was associated with significantly higher incidence of TB (33.33% vs 13.41%, p=0.031), however when pre- transplant plasmapheresis was also considered, there was no significant difference. The choice of induction agent was not associated with higher incidence of TB. Conclusion Use of rituximab is not associated with higher incidence of TB when compared to other immunosuppressive agents. Routine screening and prophylaxis may not be advisable especially in a country like India with high prevalence of TB; as it will further delay transplantation and may adversely affect the outcome of the patients.

scholarly journals Melding Pharmacogenomic Effect of MDR1 and CYP3A5 Gene Polymorphism on Tacrolimus Dosing in Renal Transplant Recipients in Northern India

2020 ◽  
Vol 5 (1) ◽  
pp. 28-38 ◽  
Author(s):  
Narayan Prasad ◽  
Akhilesh Jaiswal ◽  
Manas Ranjan Behera ◽  
Vikas Agarwal ◽  
Ravi Kushwaha ◽  
...  
Keyword(s):  
Renal Transplant ◽  
Gene Polymorphism ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Northern India ◽  
Cyp3a5 Gene

VEGF 936 C/T gene polymorphism in renal transplant recipients: Association of the T allele with good graft outcome

2007 ◽  
Vol 68 (7) ◽  
pp. 599-602 ◽  
Author(s):  
Ramazan Günesacar ◽  
Gerhard Opelz ◽  
Eren Erken ◽  
Steffen Pelzl ◽  
Bernd Döhler ◽  
...  
Keyword(s):  
Renal Transplant ◽  
Gene Polymorphism ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Graft Outcome

Increased Mortality Among Renal Transplant Patients With Invasive Pulmonary Aspergillus Infection

2018 ◽  
Vol 28 (4) ◽  
pp. 349-353 ◽  
Author(s):  
Baran Balcan ◽  
Umit Ozcelik ◽  
Aylin Ozsancakli Ugurlu ◽  
Mehtap Aydin ◽  
Serdar Nalcaci ◽  
...  
Keyword(s):  
Renal Transplantation ◽  
Renal Transplant ◽  
Opportunistic Infections ◽  
Fungal Infections ◽  
Univariate Analysis ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Aspergillus Infection ◽  
Transplant Patients ◽  
Renal Transplant Patients

Introduction: Renal transplantation is the most effective and preferred definite treatment option in patients with end-stage renal disease. Due to long-term immunesuppressive treatment, renal transplant recipients become vulnerable to opportunistic infections, especially to fungal infections. Method: This was a single-center, retrospective observational study of 438 patients who underwent renal transplantation between 2010 and 2016. Results: Thirty-eight renal transplant recipients who had lower respiratory tract infection with median age of 41.5 years were evaluated for invasive pulmonary aspergillus (IPA). Of these, 52.6% were female and 84.2% had living donors. Eleven of 38 lower respiratory patients were found to have IPA infection, 5 with proven infection. Compared to patients who did not have fungal pulmonary infection, patients with invasive aspergillus were older and had high fever, galactomannan levels, and leukocyte counts. Mortality was also higher in those patients. Having fever at the baseline and IPA infection was significantly associated with mortality in univariate analysis and remained related in multivariate model after adjustment for age, gender, and fever. Conclusion: Invasive pulmonary aspergillus infection is highly associated with increased mortality rates in renal transplant patients. Fungal pulmonary infections in immune-suppressed patients should be diagnosed and treated immediately in order to avoid the life-threatening complications and may greatly improve prognosis.

Human BK Polyomavirus Nephropathy (BKVN) In Non- Kidney-Transplant Patients

2020 ◽  
Vol 154 (Supplement_1) ◽  
pp. S118-S118
Author(s):  
Y Chen Wongworawat ◽  
C Zuppan
Keyword(s):  
Renal Transplant ◽  
Kidney Transplant ◽  
Graft Loss ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Transplant Patients ◽  
Bk Polyomavirus ◽  
Pathologic Features ◽  
Renal Biopsies ◽  
Renal Transplant Patients

Abstract Introduction/Objective Human BK polyomavirus nephropathy (BKVN) occurs in up to 10% of renal transplant recipients, and can result in graft loss. Transplant biopsy is the gold standard to diagnose BKVN, and SV40 immunohistochemical (IHC) staining is helpful in confirming the diagnosis. BKVN is uncommon outside the setting of renal transplantation. To understand more about its occurrence in other contexts, we reviewed our renal biopsies files for cases of BKVN. Methods Our renal biopsy files for the past 20 years were reviewed for all cases with a diagnosis of BKVN or polyoma virus infection, and the clinical characteristics of the affected patients noted. Results Evidence of BKVN was found in 44 renal biopsies, of which 39 (86%) were renal transplant patients. Of the remaining five patients (14%), two had undergone heart transplantation, one lung transplantation, one was undergoing chemotherapy for acute lymphoblastic leukemia, and one patient had active HIV infection. All patients had elevated serum creatinine, and four out of five patients had documented BK viremia. Four of the five biopsies showed typical tubular injury with viral nuclear cytopathic changes (inclusions). In the lung transplant patient, the biopsy showed advanced chronic tubulointerstitial injury without distinct viral inclusions, but SV40 staining confirmed the presence of BK virus antigen. Conclusion The BKVN is distinctly uncommon outside the context of kidney transplantation. In our series, 14% of patients with BKVN were not kidney transplant recipients, but all were immune compromised in some fashion. The pathologic features of BKVN appear similar, regardless of whether the host is a renal transplant recipient or not. Although uncommon, it is important to consider the possibility of BKVN in non-renal transplant patients with persistent or progressive renal dysfunction.

scholarly journals A clinical study of cutaneous manifestations in renal transplant recipients

2019 ◽  
Vol 5 (1) ◽  
pp. 160
Author(s):  
Pradeep Vittal Bhagwat ◽  
R. Rajagopal ◽  
P. S. Murthy ◽  
R. S. V. Kumar
Keyword(s):  
Renal Transplantation ◽  
Renal Transplant ◽  
Viral Infections ◽  
Fungal Infections ◽  
Common Finding ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Drug Induced ◽  
Cutaneous Manifestations ◽  
Dermatological Examination

<p class="abstract"><strong>Background:</strong> Chronic renal failure is becoming common entity with increased incidence of diabetes mellitus and resulting diabetic nephropathy. With the availability of renal transplantation services in many centers, increased availability of donors, improved surgical technique and availability of better drugs, the survival of renal transplant recipients has increased. The objective of the study was to study the cutaneous manifestations in renal transplant recipients.</p><p class="abstract"><strong>Methods:</strong> Fifty consenting, consecutive renal transplant recipients attending the OPD and in-patients at Command Hospital Air Force, Bangalore during July 2001 to March 2003 were included in the study. Detailed history was taken and clinical examination was carried out with special emphasis on the Dermatological examination. Relevant investigations were carried out.<strong></strong></p><p class="abstract"><strong>Results:</strong> A total of 50 renal transplant recipients were studied of which 42 (84%) were males and 8 (16%) were females. The age of patients ranged from 16 years to 60 years. Infections were the most common finding, encountered in 38 (76%) patients, followed by drug induced manifestations in 24 (48%) patients. Cellulitis was noted in 1 (2%) patient, viral infections were seen in 18 (36%) patients, fungal infection was the commonest in this study, encountered in 38 (76%) patients. Monomorphic acne was seen in 13 (26%) patients. Hypertrichosis/hirsutism were the commonest drug induced manifestation in this study, seen in 16 (32%) patients.</p><p class="abstract"><strong>Conclusions:</strong> In patients with renal transplantation, superficial fungal infections and viral infections of the skin are seen more commonly. Monomorphic acne and hypertrichosis due to immunosuppressive are also seen frequently. These changes are moderately influenced by the immunosuppressive regimen used.</p>

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