The Prevalence of Prostate Cancer in Organ Donors With Increased Prostate-Specific Antigen.

Elevated prostate-specific antigen (PSA) levels were found in 139 of 472 kidney donors from our transplant center tested between 2009 and 2022, representing 29%. The mean age of these donors was 47.3 years. PSA values ranged from 2.8 to 160.4 ng/mL (mean 13.9 ng/mL). The recommended range is <2.5 ng/mL. Prostate histopathologic examination was performed in 38 of the 139 (27%). We found 14 cases of prostate cancer (PCa), with Gleason 3+3 in 8 cases, 3+4 in 4 cases (one donor disqualification), 1 case Gleason 4+3 (donor disqualification), and 1 case Gleason 4+5 (donor disqualification). Thirty-three patients met the criteria, were aged ≥50 years, and had a PSA level >10 mg/mL. Of these, prostate histopathologic examination was performed in 24 cases. PCa was found in 10 cases (42%). There was no difference between donors ≥50 years of age, with PSA>10 ng/mL with and without pathomorphologic diagnosis of PCa regarding age (mean 60.4 vs 60.6 years), creatinine clearance according to the Cockroft-Gaulta formula (mean 101.6 vs 94.8 mL/min) and PSA levels (mean 34.1 vs 29.3 ng/mL). Among other donors with PCa, 3 were <50 years with PSA >10 ng/mL, and 1 was ≥50 years with PSA<8 ng/mL. Kidneys from donors with PCa were transplanted into 10 men and 9 women. Follow-up time was 1 to 10 years. No cases of PCa transmission were reported. One of the recipients died of neoplasm-breast cancer. Donors ≥50 years of age with PSA>10 ng/mL have a higher risk for Pca. Accepting donors with Pca (Gleason 3+3 and 3+4) possesses minimal risk for transmission. All donors ≥50 years with increased PSA require further diagnostic procedures (eg, digital rectal examination, ultrasound, and eventually histologic examination).

Kidney Transplant Loss Due to May-Thurner Syndrome: Case Report and Review of the Literature.

BACKGROUND: May-Thurner syndrome (MTS) is an extrinsic venous compression by the arterial system against bony structures in the iliocaval territory. The most common variant of MTS is due to compression of the left iliac vein between the overlying right common iliac artery and the fifth lumbar vertebrae. The prevalence of MTS is unknown; therefore, there are only a few publications about MTS in kidney transplant recipients. Risk factors that may progress from usually asymptomatic to symptomatic MTS are female sex, scoliosis, dehydration, coagulation disorders, and radiation. Clinical presentations include acute extremity pain and swelling, venous claudication, and chronic signs of venous insufficiency. METHODS: We describe a 63-year-old man who underwent kidney transplantation (left iliac fossa). Four days after transplantation, a graftectomy was done due to graft rupture caused by renal vein thrombosis. After imaging studies, a diagnosis of MTS was established. The patient had no typical symptoms of MTS. However, an incidence of right lower limb thrombosis was observed, and due to vertebral discopathy, the patient underwent surgery with implantation of a vertebral implant. RESULT: After a successful second transplantation on the right side, incidents of thrombosis were observed: superficial thrombosis of the upper limbs and massive deep vein thrombosis of the right lower limb. Thrombophilia was recognized, the graft function is stable, and anticoagulation therapy is being continued. CONCLUSION: Asymptomatic MTS in the case of coincidence of other risk factors, such as coagulation disorders, history of vertebral operation, and additional pressure of the graft, can result in graft failure.

Clinical Characteristics of EGPA Patients in Comparison to GPA Subgroup with Increased Blood Eosinophilia from POLVAS Registry.

Objective: To characterize the eosinophilic granulomatosis with polyangiitis (EGPA) population from the POLVAS registry depending on ANCA status and diagnosis onset, including their comparison with the granulomatosis with polyangiitis (GPA) subset with elevated blood eosinophilia (min. 400/µl) (GPA HE) to develop a differentiating strategy. Methods: A retrospective analysis of the POLVAS registry. Results: The EGPA group comprised 111 patients. The ANCA-positive subset (n = 45 [40.54%]) did not differ from the ANCA-negative one in clinics. Nevertheless, cardiovascular manifestations were more common in ANCA-negative patients than in those with anti-myeloperoxidase (MPO) antibodies (46.97% vs. 26.92%, p = 0.045). Patients diagnosed before 2012 (n = 70 [63.06%]) were younger (median 41 vs. 49 years, p < 0.01), had higher blood eosinophilia at diagnosis (median 4,946 vs. 3,200/µl, p < 0.01), and more often ear/nose/throat (ENT) and cardiovascular involvement. GPA HE comprised 42 (13.00%) out of 323 GPA cases with reported blood eosinophil count. Both GPA subsets had a lower prevalence of respiratory, cardiovascular, and neurologic manifestations but more often renal and ocular involvement than EGPA. EGPA also had cutaneous and gastrointestinal signs more often than GPA with normal blood eosinophilia (GPA NE) but not GPA HE. The model differentiating EGPA from GPA HE, using ANCA status and clinical manifestations, had an AUC of 0.92, sensitivity of 96%, and specificity of 95%. Conclusion: Cardiovascular symptoms were more prevalent in the ANCA-negative subset than in the MPO-ANCA-positive one. Since EGPA and GPE HE share similarities in clinics, diagnostic misleading may result in an inappropriate therapeutic approach. Further studies are needed to optimize their differentiation and tailored therapy, including biologics.

The ERA Registry Annual Report 2021: a summary.

Background: The European Renal Association (ERA) Registry collects data on kidney replacement therapy (KRT) in patients with end-stage kidney disease (ESKD). This paper is a summary of the ERA Registry Annual Report 2021, including a comparison across treatment modalities. Methods: Data was collected from 54 national and regional registries from 36 countries, of which 35 registries from 18 countries contributed individual patient data and 19 registries from 19 countries contributed aggregated data. Using this data, incidence and prevalence of KRT, kidney transplantation rates, survival probabilities and expected remaining lifetimes were calculated. Result: In 2021, 533.2 million people in the general population were covered by the ERA Registry. The incidence of KRT was 145 per million population (pmp). In incident patients, 55% were 65 years or older, 64% were male, and the most common primary renal disease (PRD) was diabetes (22%). The prevalence of KRT was 1040 pmp. In prevalent patients, 47% were 65 years or older, 62% were male, and the most common PRDs were diabetes and glomerulonephritis/sclerosis (both 16%). On 31 December 2021, 56% of patients received haemodialysis, 5% received peritoneal dialysis, and 39% were living with a functioning graft. The kidney transplantation rate in 2021 was 37 pmp, a majority coming from deceased donors (66%). For patients initiating KRT between 2012-2016, 5-year survival probability was 52%. Compared to the general population, life expectancy was 65% and 68% shorter for males and females receiving dialysis, and 40% and 43% shorter for males and females living with a functioning graft.

Secondary Neovascular Glaucoma in the Course of Diabetes in a Kidney Transplant Recipient: Case Report and Review of the Literature.

BACKGROUND: The increase in intraocular pressure during hemodialysis challenges nephrologists and ophthalmologists. It most often affects patients with previously diagnosed glaucoma and is particularly dangerous in the setting of diabetic retinopathy. Hypoperfusion and hypoxia of the retina may occur, leading to pathologic neovascularization in the retina and the anterior chamber angle. Changes in the filtration angle block the outflow of aqueous humor and cause secondary glaucoma. A special type of glaucoma is neovascular glaucoma, developing among others in patients with diabetic retinopathy. This study describes a patient with secondary neovascular glaucoma in whom a significant increase in intraocular pressure was observed during hemodialysis, not responding to the applied topical treatment. METHODS: The patient experienced severe pain, and her cornea was constantly injured by paracentesis. Ultimately, secondary glaucoma led to a significant decrease in vision in both eyes. The patient was enrolled on a transplant waiting list and transplanted with priority. RESULTS: The patient experienced some urologic and infectious complications, although 7 months after transplantation, her creatinine concentration was 1.2 mg/dL, and the ocular disease was stabilized. The intraocular pressure decreased, but there were still values above the norm, which required periodic injections of anti-vascular endothelial growth factor into the vitreous chamber and 5-fluorouracil injections under the conjunctiva. CONCLUSIONS: Patients with diabetes and secondary neovascular glaucoma on dialysis constitute an extremely difficult therapeutic problem and require the involvement of several specialists. Successful kidney transplantation, besides ameliorating general clinical conditions, may increase the chance of successful ophthalmologic treatment.

Personal Resources and Expectations and Health Behaviors Among Solid Organ Transplant Recipients-A Multicenter Study.

BACKGROUND: The long-term success of organ transplantation (Tx) depends on the transplant recipient's ability to self-manage symptoms, treatment, lifestyle changes, and psychosocial consequences. Health behavior (HB) determinants include personality traits such as optimism, self-efficacy, and health locus of control. PURPOSE: Assessing the relationship between personal resources and expectations and health behaviors of organ transplant recipients. MATERIAL AND METHODS: The study was conducted between 01/04/2018 and 30/10/2019 at 3 transplant centers in Poland. The study group consisted of 243 Tx recipients of kidney, heart, liver, and lung. The Health Behavior Inventory, Multidimensional Health Locus of Control Scale (MHLC), General Self-Efficacy Scale, Dispositional Optimism Scale, and Hospital Anxiety and Depression Scale were used to collect data. FINDINGS: The study group had medium levels of dispositional optimism (mean 15) and high levels of self-efficacy (mean 30.18). The MHLC scale was dominated by a belief in the influence of others and an internal locus of control over one's health. The respondents presented a high level of HB (mean 92.09). A positive relationship was found between personal resources (self-efficacy and optimism), MHLC and HB. The presence of depression and anxiety negatively affected personal resources and internal locus of health control and HB in terms of a positive mental attitude. Type of Tx differentiated internal locus of health control and HB. Predictors of HB were dispositional optimism, self-efficacy, influence of others with health locus of control, symptoms of depression, age and time since transplantation-explaining between 6.1% and 14.5% of health behavior categories. CONCLUSIONS: To improve health practices among organ recipients, strengthening their personal resources is recommended. It is necessary to form an internal locus of control for adherence to positive HB.

Desensitization of Highly Immunized Kidney Transplant Recipients Awaiting Transplantation-Polish Single-Center Experience.

INTRODUCTION: The increasing number of highly immunized patients waiting for kidney transplantation is a significant problem in Europe as the proportion of such patients has doubled in the last decade. Transplantation in this group is enabled by desensitization methods, i.e., intravenous pharmacotherapy with human immunoglobulin (IVIG), anti-CD20 monoclonal antibody (rituximab), and plasma exchange. The objective was to evaluate the efficacy and safety of this protocol. MATERIAL AND METHODS: The inclusion criteria: presence of established anti-HLA antibodies with complement-binding capacity, i.e., anti-HLAC1q+ (>MFI 15,000 for the most common antigens), no renal transplantation within 1 year after activation on the waiting list. Thirteen patients were selected for the procedure. IVIG was administered twice (2 g/kg-maximum 140 g/dose). Between IVIG doses, patients received rituximab (375 mg/m2). Anti-HLA was tested after 1 and 2 months after completion of the procedure. RESULTS: All patients have completed the protocol. No significant changes after desensitization in the amount/profile of alloantibodies were observed. However, with negative vCM for HLA-A/B/DR (no DSA against the reported donor) and negative CM-CDC, according to the allocation system, patients were given priority on the recipient list. Seven out of 13 patients received a transplant within 12 months after treatment (mean 11.5 weeks). Renal graft function was good (mean creatinine level after 1 month: 1.5 mg/dL). No incidents of acute rejection were reported. The most common complications were infections (especially pneumonia). CONCLUSION: The desensitization protocol (IVIG + rituximab) allows highly immunized patients to undergo organ transplantation. In short-term analysis, no acute rejection was observed, graft function was satisfactory. Desensitization was associated with an increased risk of infection.

Conversion From Immediate-Release to Prolonged-Release Tacrolimus in Kidney Transplant Patients With Tremor: A Case Series Study.

BACKGROUND/AIM: Tremor is common with tacrolimus treatment and is linked with peak blood drug concentrations. We investigated the effect of switching from immediate-release tacrolimus (IR-TAC) to MeltDose prolonged-release tacrolimus (LCPT) on tremor in kidney transplant recipients experiencing tremor at therapeutic levels of IR-TAC. METHODS: The Activities of Daily Living Subscale (ADL, range 0-48, lower = better) of the Essential Tremor Rating Scale was used to assess the effect of therapy change on speech, occupational impairment and social activities over a 12-month follow-up period. RESULTS: The study included 18 patients (mean age = 45.6 y, range 26-73; median (IQR) time from transplant = 1.1 y (0.6-1.5), with baseline IR-TAC trough concentrations (C0) ranging from 4.2 to 9.4 ng/mL (mean C0 = 6.7 ± 1.3 ng/mL). After the switch to LCPT, the mean ADL score improved from baseline 11.2 to 8.4 after 7 to 14 days (an 18% improvement, P < .001). This improvement was sustained after 3 months (ADL score = 5.0, 46% improvement vs baseline), 6 months (ADL score = 4.4, 48% improvement vs baseline), and 12 months (ADL score = 3.6, 63% improvement vs baseline); all P < .001. Despite a 40% reduction in LCPT daily doses (mean -1.9 mg/day compared to IR-TAC), the achieved C0 was constant during the course of the 12-month observation (P = .755). The renal function remained stable after conversion (eGFR 12 months vs baseline = +1.1 mL/min/1.73 m2, 95% CI: -5.6 to +7.9). CONCLUSION: Conversion to LCPT may alleviate symptom burden and improve daily activities in kidney transplant recipients experiencing tremor within therapeutic IR-TAC concentrations.

Increased Circulating Irisin Levels in Kidney Transplant Patients: Is There a Connection with Glycaemic Control?

Irisin is a myokine with potential effects on glucose metabolism and the development of diabetes in humans. We analysed irisin serum levels (ISL) in 47 patients without diabetes before and 1, 2, 3, 4 and 5 weeks after kidney transplantation (KTx). All measurements of irisin before KTx levels were lower than 25 ng/mL (median 8.4 ng/mL). We found an outstanding increase in ISL measured after KTx, reaching more than 1000 times in 44% of patients (HIL-high irisin level group). The increase appeared at the first measurement (one week after KTx). Factors connected to the large growth of ISL were, i.e., BMI > 30 (p = 0.04) and subsequent KTx-second and third (p < 0.001). The global mean blood glucose level during the first two weeks after KTx was significantly lower in the HIL group (p = 0.002), the same as the day-by-day analysed mean fasting and postprandial serum glucose in the first days after KTx. In 12 months of observation, diabetes requiring insulin therapy occurred in the HIL group at a rate of 19%, while in the rest of the patients, the rate was 27%, p = 0.526. Irisin levels increase significantly in some patients after kidney transplantation, accompanied by lower blood glucose levels in the early post-transplant period. Whether an increase in irisin levels results in better glycaemic control remains questionable and requires further research, as well as the relationship between irisin levels and the occurrence of PTDM.

Cumulative incidence and risk factors for cutaneous squamous cell carcinoma metastases in organ transplant recipients: The Skin Care in Organ Transplant Patients in Europe-International Transplant Skin Cancer Collaborative metastases study, a prospective multicenter study.

INTRODUCTION: Solid organ transplant recipients (SOTRs) are believed to have an increased risk of metastatic cutaneous squamous cell carcinoma (cSCC), but reliable data are lacking regarding the precise incidence and associated risk factors. METHODS: In a prospective cohort study, including 19 specialist dermatology outpatient clinics in 15 countries, patient and tumor characteristics were collected using standardized questionnaires when SOTRs presented with a new cSCC. After a minimum of 2 years of follow-up, relevant data for all SOTRs were collected. Cumulative incidence of metastases was calculated by the Aalen-Johansen estimator. Fine and Gray models were used to assess multiple risk factors for metastases. RESULTS: Of 514 SOTRs who presented with 623 primary cSCCs, metastases developed in 37 with a 2-year patient-based cumulative incidence of 6.2%. Risk factors for metastases included location in the head and neck area, local recurrence, size > 2 cm, clinical ulceration, poor differentiation grade, perineural invasion, and deep invasion. A high-stage tumor that is also ulcerated showed the highest risk of metastasis, with a 2-year cumulative incidence of 46.2% (31.9%-68.4%). CONCLUSIONS: SOTRs have a high risk of cSCC metastases and well-established clinical and histologic risk factors have been confirmed. High-stage, ulcerated cSCCs have the highest risk of metastasis.

Autologous Blood Transfusion During Elective Surgery in a Candidate for Living Donor Transplantation: A Case Report.

BACKGROUND: Blood transfusions are risk factors for alloimmunization and unfavorable outcomes in solid organ transplant recipients. PURPOSE: We propose the adoption of autologous blood transfusion (ABT) in transplant candidates and recipients referred to elective surgery. METHODS: We present a case of a 45-year-old man with chronic kidney disease stage 5 due to polycystic kidney disease, who was qualified for a native kidney nephrectomy (NKN) before kidney transplantation. Before the scheduled surgery, the patient was referred to a blood donation center for blood collection. RESULTS: During 2 consecutive visits, autologous blood was collected uneventfully, and this allowed for the preparation of 2 units of red blood cell concentrates and a unit of plasma. Pre- and post-donation hemoglobin values were 11.9 and 10.4 g/dL, respectively. The NKN procedure was complicated by intra-abdominal bleeding from an accessory aberrant artery of the kidney. Hemoglobin dropped to 6.8 g/dL and was treated with ABT, followed by artery embolization. This allowed for an increase of hemoglobin to 8.3 mg/dL and avoidance of allotransfusion. Six weeks after NKN, the patient underwent successful kidney transplantation from a living donor. Panel reactive antibodies before transplantation were 0%, and graft function has been excellent during 20 months of observation. CONCLUSION: An autologous blood collection is a feasible option for patients with chronic kidney disease. ABT should be considered the procedure of choice when qualifying potential waiting list candidates and solid organ recipients for elective surgeries.

Miliary Tuberculosis as Postmortem Diagnosis in Solid Organ Transplant Recipient: Case Report and Review of the Literature.

BACKGROUND: The diagnosis of tuberculosis (TB) in solid organ transplant (SOT) recipients presents challenges that may lead to treatment delay. These include atypical clinical presentations, increased likelihood of negative tuberculin skin test or/and interferon-gamma release assays, and negative sputum smear results despite active disease. The treatment poses challenges due to pharmacokinetic interactions, allograft-related toxicity, and inadequate immune response. CASE REPORT: We report the case of a 70-year-old man after kidney transplantation in 2012. The patient was transferred from the urology unit with deteriorating renal function and presumed urosepsis. His pulmonary chest X-ray showed hilar pulmonary infiltrates. Computed tomography of the chest/abdomen/pelvis revealed mediastinal lymphadenopathy, pulmonary infiltrates, pulmonary effusion, and splenomegaly. His blood results showed pancytopenia and high inflammatory and renal markers. He was treated with broad-spectrum antibiotics covering bacterial, fungal, and viral infections. Despite initial clinical improvement, his kidney function deteriorated, and he required hemodialysis. His temperature continued to spike. On physical examination, he was confused and lethargic. He was scheduled to have a mediastinoscopy with lymph node biopsy, but he died the day before. The postmortem examination revealed miliary tuberculosis with tuberculosis of many organs: kidney transplant, native kidney, bone marrow, mediastinal lymph nodes, lungs, and spleen. CONCLUSIONS: The diagnosis of active TB in transplant recipients requires a high index of suspicion and invasive procedures. The majority of all cases of active TB after SOT are disseminated or occur at extrapulmonary sites. Only a small minority of patients have classic cavitary changes on pulmonary imaging.

The Efficacy and Safety of High-Dose Cholecalciferol Therapy in Hemodialysis Patients.

Vitamin D deficiency and insufficiency are highly prevalent in CKD, affecting over 80% of hemodialysis (HD) patients and requiring therapeutic intervention. Nephrological societies suggest the administration of cholecalciferol according to the guidelines for the general population. The aim of the observational study was to evaluate the efficacy and safety of the therapy with a high dose of cholecalciferol in HD patients with 25(OH)D deficiency and insufficiency to reach the target serum 25(OH)D level > 30 ng/mL. A total of 22 patients (16 M), with an average age of 72.5 ± 13.03 years and 25(OH)D concentration of 13.05 (9.00-17.90) ng/mL, were administered cholecalciferol at a therapeutic dose of 70,000 IU/week (20,000 IU + 20,000 IU + 30,000 IU, immediately after each dialysis session). All patients achieved the target value > 30 ng/mL, with a mean time of 2.86 ± 1.87 weeks. In the first week, the target level of 25(OH)D (100%) was reached by 2 patients (9.09%), in the second week by 15 patients (68.18%), in the fourth week by 18 patients (81.18%), and in the ninth week by all 22 patients (100%). A significant increase in 1,25(OH)2D levels was observed during the study. However, only 2 patients (9.09%) achieved a concentration of 1,25(OH)2D above 25 ng/mL-the lower limit of the reference range. The intact PTH concentrations remained unchanged during the observation period. No episodes of hypercalcemia were detected, and one new episode of hyperphosphatemia was observed. In conclusion, our study showed that the administration of a high-therapeutic dose of cholecalciferol allowed for a quick, effective, and safe leveling of 25(OH)D concentration in HD patients.

Intradialytic Tolerance and Recovery Time in Different High-Efficiency Hemodialysis Modalities.

There are several forms of maintenance high-efficiency hemodialysis (HD), including hemodiafiltrations (HDF) in different technical modes and expanded HD, using dialyzers with medium cut-off membranes. The aim of the study was to assess the intradialytic tolerance and length of dialysis recovery time (DRT) in these modalities. This is an exploratory, crossover study in maintenance HD patients with low comorbidity and no clinical indications for the use of high-efficiency HD, who were exposed to five intermittent dialyses in random order: high-flux hemodialysis (S-HD), expanded HD (HDx), pre-dilution HDF (PRE-HDF), mix-dilution HDF (MIX-HDF) and post-dilution HDF (POST-HDF). Twenty-four dialysis sessions of each method were included in the analysis. Dialysis parameters, including blood flow rate, dialysis fluid flow rate and temperature, and pharmacological treatment were constant. Average total convection volume for post-HDF, pre-HDF and mix-HDF were 25.6 (3.8), 61.5 (7.2) and 47.1 (11.4) L, respectively. During all therapies, patients were monitored for the similarity of their hydration statuses using bioimpedance spectroscopy, and for similar variability over time in systemic blood pressure and cardiac output, while peripheral resistance was monitored using impedance cardiography. The lowest frequency of all intradialytic adverse events were observed during HDx. Delayed DRT was the shortest during PRE-HDF. Patients were also more likely to report immediate recovery while receiving PRE-HDF. These differences did not reach statistical significance; however, the study results suggest that intradialytic tolerance and DRT may depend on the dialysis method used. This supports the need of taking into account patient preferences and quality of life while individualizing high-efficiency therapy in HD patients.

Polish validation of the Transplant Effects Questionnaire.

Introduction: The Transplant Effects Questionnaire (TxEQ) assesses specific recipients' reactions to receiving a transplanted organ, including worry about the transplant, Guilt regarding the donor, disclosure of having undergone transplantation, adherence to medical treatment, and responsibility to the donor, family, or medical staff. Poland has no standardized tool for evaluating the emotional reaction to transplantation. The study aimed to assess the basic psychometric properties, such as the reliability and validity of the Polish translation of TxEQ-PL. Materials and methods: The study involved 84 patients after kidney transplantation. The average age of the subjects was 49.87 years (±15.27). The study used the diagnostic survey method, the Polish versions of the Revised Life Orientation Test (LOTR-R), the Mental Component Summary of the SF-36 (SF-36-MCS), and the Hospital Anxiety and Depression Scale (HADS). The Confirmatory Factor Analysis (CFA) was used to verify the factor structure of TxEQ -P.L. variables. Results: The TxEQ-PL version has satisfactory internal consistency for each subscale (Cronbach's alpha > 0.7). The analysis showed a significant negative relationship between optimism (LOT-R) and the TxEQ-PL subscales: worry about transplant and disclosure of having undergone transplantation and a positive relationship in the subscale of adherence to medical treatment. In addition, a significant negative relationship was found between the subscale: adherence to medical treatment and the severity of depression and intensity of anxiety (HADS); also, a positive relationship with the Mental Component Summary of the SF-36 (SF-36-MCS). The intensity of anxiety and severity of depression were positively related to the TxEQ-PL subscale of disclosure of having undergone transplantation and negatively associated with the Mental Component Summary of the SF-36 (SF-36-MCS). The Confirmatory Factor Analysis confirmed the five-factor structure of the TXEQ-PL questionnaire (RMSEA = 0.083). Not the best fit is indicated by the value of comparative fit indexCFI = 0.813 and SRMR = 0.10. The result of the chi-squared test (220) = 340 was statistically significant; p < 0.001. Conclusion: TxEQ-PL is useful for assessing emotional reactions to organ transplantation. The tool has a factor structure identical to the original English version and comparable psychometric properties.

Chemokines and Cytokines Profiles in Patients with Antineutrophil Cytoplasmic Antibodies-Associated Vasculitis: A Preliminary Study.

The damage to small vessels in AAV and inflammatory reactions are accompanied by the release of various chemokines and cytokines. Using a flow cytometry technique, we assessed the levels of specific cytokines, namely IL-1ß IL-6, IL-8, IL-10, IL12p70, and TNF, and chemokines, IFN-α, IP-10, and MIG in the serum from 9 healthy volunteers and 20 AAV patients, where 11 of the patients were not treated and evaluated at the time of diagnosis and 9 were already diagnosed and taking CY + GCS. The obtained results were then compared considering the activity of the disease, the type and titre of the ANCA antibodies, the inflammatory status, and the kidneys' condition. Amongst others, the IL-6, IL-8, IL-10, TNF, and MIG levels were much higher in the serum of AAV patients than in healthy controls, whereas the level of IL-1ß was higher in healthy volunteers. Additionally, the levels of IL-6, IL-10, IP-10, and MIG negatively correlated with the eGFR level, while the level of IFN-α positively correlated with the titre of PR3-ANCA. As most of the molecules are implicated in trafficking primed neutrophils towards small vessels, looking for links between the levels of these cytokines/chemokines and the clinical symptoms of AAV may facilitate the diagnosis and predict the progression of the disease.

Comprehensive Assessment of Eyes in Kidney Transplant Recipients after Recovering from COVID-19.

INTRODUCTION: Patients after organ transplantation with COVID-19 have a higher risk of morbidity and mortality than patients in the general population. There are single studies that assess the eyes of COVID-19 patients, but there are no such studies on organ transplant recipients. The purpose of this study was to comprehensively examine the eyes of kidney transplant recipients (KTR) after recovery from mild to moderate SARS-CoV-2 infection. METHODS: A total of 40 KTR after COVID-19 and 20 KTR without clinical and immunological symptoms of SARS-CoV-2 infection as a control group was qualified for the cross-sectional study. A total of 76 eyes from 38 KTR on an average of 7 weeks after COVID-19 and 36 eyes from 18 KTR from the control group were studied. The participants underwent an ophthalmological examination, and the retinal and choroid vessels and nerves were assessed by optical coherence tomography angiography. RESULTS: We found a lower vessel density (VD) in the deep capillary plexus in the central part of the retina (VD deep central) of the study group. Women had significantly lower VD deep central in the study group (15.51 vs. 18.91, p < 0.001). Multivariate linear regression analysis confirmed an independent, negative impact of COVID-19 (p < 0.001) and female gender (p = 0.001) on VD deep central. CONCLUSION: The results of our study confirmed that changes in microcirculation induced by SARS-CoV-2 infection may affect the retinal vessels in KTR. Mild to moderate COVID-19 in KTR resulted in a significant reduction in VD deep central of the retina, with these changes being more common in females.

Impact of diet modification on body mass and kidney function in patients with diabetic nephropathy: a pilot study.

OBJECTIVES: The increasing trend in chronic kidney disease (CKD) has occurred in parallel with the increased prevalence of obesity and diabetes type 2. The relationship between a reduction in body mass and protein intake in diabetic nephropathy (DN) has not been adequately understood. This study aimed to determine whether dietary intervention in an adult with DN is associated with decreasing proteinuria or changes in kidney function over six months. METHODS: The study included 120 patients with DN, consecutively admitted to a dietitian from a Kidney Disease Clinic. Patients were classified into two groups: a reduction diet or a normal calorie diet, both with 0.8 g of protein/kg of ideal body weight/day. Anthropometric and laboratory assessments were done before and after observation. RESULTS: After six months, in the study group of patients on a reducing diet, a decrease in body mass, body mass index (BMI) and stabilization of estimated glomerular filtration rate (eGFR) were observed. There was also a significant correlation between the time of diabetes diagnosis and eGFR and creatinine (R Spearman=-0.24 and 0.3, respectively; p=0.05). There were no other significant associations between body mass, BMI, albuminuria, eGFR, or creatinine. CONCLUSIONS: The study shows that obesity is a common comorbid disease in patients with DN and that dietary intervention is associated with a significant reduction in body mass and stabilization of eGFR in these patients.

Nanoparticle Tracking Analysis of Urinary Extracellular Vesicle Proteins as a New Challenge in Laboratory Medicine.

Urinary extracellular vesicle (uEV) proteins may be used as specific markers of kidney damage in various pathophysiological conditions. The nanoparticle-tracking analysis (NTA) appears to be the most useful method for the analysis of uEVs due to its ability to analyze particles below 300 nm. The NTA method has been used to measure the size and concentration of uEVs and also allows for a deeper analysis of uEVs based on their protein composition using fluorescence measurements. However, despite much interest in the clinical application of uEVs, their analysis using the NTA method is poorly described and requires meticulous sample preparation, experimental adjustment of instrument settings, and above all, an understanding of the limitations of the method. In the present work, we demonstrate the usefulness of an NTA. We also present problems encountered during analysis with possible solutions: the choice of sample dilution, the method of the presentation and comparison of results, photobleaching, and the adjustment of instrument settings for a specific analysis. We show that the NTA method appears to be a promising method for the determination of uEVs. However, it is important to be aware of potential problems that may affect the results.