Chronic renal failure (CRF) refers to progressive renal damage caused by chronic kidney diseases (CKD). Dialysis therapy and kidney transplantation are the important treatment for CRF. However, due to the limitation of conditions, they cannot be widely utilized. At present, the treatment of renal failure is a worldwide problem in clinic. Therefore, in the current study, we investigated the potential therapeutic effects of neoxanthin on CFR-caused aging and fibrosis. In this work, the effects of neoxanthin on CRF were studied using experimental techniques such as biochemistry, immunohistochemistry and molecular biology. In vitro, neoxanthin alleviated the aging and oxidative damage of kidney cells. In vivo, we found that Neoxanthin could alleviate adenine-induced CRF. Neoxanthin also inhibited CRF-caused renal aging, fibrosis, oxidative stress and inflammation. These findings indicate that neoxanthin could delay the progression of CRF and alleviate CRF-induced aging and fibrosis. Collectively, we found that neoxanthin shows good potential to inhibit CRF-caused kidney aging and fibrosis, suggesting that neoxanthin may be used as a drug (or a functional food) for the treatment of CRF-related diseases.

Objective:To measure serum cell-free DNA (cf-DNA) and donor-derived cell-free DNA (ddcf-DNA) in simultaneous pancreas-kidney transplantation recipients by the next generation sequencing technology and evaluate the relationship between ddcf-DNA and early acute rejection (AR).Methods:A total of 20 recipients who underwent simultaneous pancreas-kidney transplantation in the Department of Organ Transplantation, the Second Affiliated Hospital of Guangzhou Medical University from June 2019 to June 2021 were enrolled. According to whether there was AR after operation, the 20 recipients were divided into two groups: control group (10 cases) and AR group (10 cases). Three recipients in the control group were selected as the observation group by the random number table. The serum levels of ddcf-DNA were measured before transplantation, 2 h after recanalization of blood vessel of transplanted pancreas, and 1, 3, 7, 14, 30, and 60 d after transplantation. The levels of serum ddcf-DNA in the other 7 recipients in the control group were measured before and 14 and 30 d after transplantation. Meanwhile, the testing time points of serum ddcf-DNA in AR group were as follows: before operation, during rejection and after reversal of rejection. The measurement data of normal distribution between the two groups were compared by group t test. Fisher′s exact probability method was used for counting data comparison. P<0.05 means the difference was statistically significant.Results:The length of ddcf-DNA fragment was 110-350 bp. The length of cf-DNA fragment from the recipients was 100-420 bp. Three recipients in the observation group were marked as cases 1, 2 and 3, respectively. The content of ddcf-DNA of the 3 recipients before operation were 0.49%, 0.55% and 0.32%, respectively. The content of ddcf-DNA increased sharply to 12.05%, 10.64% and 11.05% 2 h after recanalization, and reached its peak after blood flow restored. At the first day after transplantation, the level of ddcf-DNA showed a significant downward trend, and reached a stable state about 30 d after transplantation. The content of ddcf-DNA was (0.71%±0.09%) in the control group and (0.66±0.10)% in the AR group. There was no significant difference between the two groups (t=1.126, P>0.05). The time of diagnosis of rejection in AR group was (17±4) d after transplantation, and the content of serum ddcf-DNA was (5.4±2.0)% when AR was confirmed; while the content of serum ddcf-DNA in the control group was (1.70±0.48)% 2 weeks after transplantation, and the difference was statistically significant (t=-5.59, P<0.05). The rejection was reversed and the recipients condition were stable at (27 ± 4) d after transplantation in the AR group, at which time the content of ddcf-DNA was (0.93 ± 0.32)%. The content of ddcf-DNA in the control group was (0.87±0.25)% on the 30th day after transplantation, and the difference was not statistically significant between the 2 groups (t=-0.497, P>0.05).Conclusions:The serum ddcf-DNA in simultaneous pancreas-kidney transplantation recipients increased significantly when AR occurred. When AR was reversed, the content of ddcf-DNA showed a significant downward trend.

BACKGROUND:To investigate the significance of simultaneous urography of the upper and lower urinary tract of transplanted kidneys combined with computed tomography urography (CTU), computed tomography arteriography (CTA), and computed tomography venography imaging in the planning of open surgery performed to treat any ureteral complications of a transplanted kidney.METHODS:In all, 24 patients with ureteral complications after renal transplantation were admitted, 12 of whom had renal graft ostomy during open surgery. Simultaneous antegrade urography of the upper urinary tract and retrograde cystography of the transplanted kidneys were performed on the patients. With the use of computed tomography imaging results, surgical planning was carried out.RESULTS:All surgeries were successfully completed according to preoperative planning. Three patients underwent end-to-end anastomosis of the ureter and bladder muscle flap, 8 patients underwent ureterocystostomy, and 1 patient underwent an end-to-end ureteral anastomosis. After the follow-up up to now, all the patients had stable renal function, and no complications such as ureteral stenosis or urine leakage have thus far reoccurred in the transplanted kidneys.CONCLUSIONS:When open surgery is required to treat any ureteral complications following renal transplantation, preoperative multiangle imaging can be used to better understand the condition of the transplanted urinary tract and thus aid considerably in surgical planning.

本文介绍广州市胸科医院4例肾移植术后并发耐多药结核病患者的临床诊治过程。结果1例治愈，余3例因感染加重抗结核治疗疗程未完成即死亡。肾移植术后耐多药结核病病情复杂严重，治疗困难、预后较差，病死率高，需多手段诊疗措施，控制并发症，避免过度免疫抑制。肾移植术后受者应避免接触排菌的肺结核患者及存在耐多药结核菌株的环境。

Objective:To explore the clinical efficacy of aspirin plus low molecule heparin for pancreatic thrombosis during simultaneous pancreas and kidney transplantation (SPK).Methods:A total of 129 patients aged 18 years or higher underwent SPK between September 2016 and March 2020.They were divided retrospectively into two groups of aspirin ( n=60) and heparin ( n=69) according to different anticoagulant regimens.The aspirin group received only aspirin 100 mg/d at Day 1 post-operation.The heparin group received subcutaneous injection of enoxaparin 2 000 AxaIU daily for 7 days and followed by aspirin and clopidogrel.Outcomes and complication rates were compared between two groups. Results:All operations were successful without any mortality.In aspirin group, there were 5 cases of pancreatic thrombosis and one patient underwent pancreatectomy.There was no pancreatic thrombosis in heparin group ( P=0.014). There were 8 cases of intestinal anastomotic bleeding in aspirin group and 19 cases in heparin group.Statistically significant inter-group difference existed ( P=0.048). However, no significant inter-group difference existed in delayed recovery or rejection. Conclusions:Heparin anticoagulation can significantly lower the incidence of pancreatic thrombosis after SPK.Despite a higher incidence of intestinal anastomotic bleeding, no serious complication occurs after conservative meaures.

Background: To investigate the effect of disseminated intravascular coagulation (DIC) on donor kidney in donation after citizens' death (DCD) donors. Methods: The clinical and laboratory data of 159 DCD donors obtained by our center in 2018 were retrospectively analyzed. The DIC diagnosis was performed according to the Chinese DIC scoring system (CDSS). The donors were divided into two groups: DIC (+) and DIC (-). The difference between kidney rejection rate and zero puncture glomerular microthrombus formation rate were compared. Results: Among the 159 DCD donors, 11 were discarded (accounting for 6.91%). The reasons for the discarded cases included 5 cases (3.14%) for moderate and severe glomerular microthrombus formation in the renal zero puncture pathology; 2 cases (1.26%) for glomerular sclerosis ratio over 50%; 2 cases (1.26%) for long-term low blood pressure before pregnancy and significantly increased serum creatinine level and no urine; 1 case (0.73%) for kidney stones and stagnant water; 1 case (0.63%) for malignant tumor. The donor rejection rate of the DIC (+) group was higher than that of the DIC (-) group, and the difference was statistically significant (P<0.05). Among all donors, 10 cases (6.29%) were found to have glomerular microthrombus at zero puncture, and the microthrombotic rate in the DIC (+) group was significantly higher than that in the DIC (-) group (P<0.05). Of the 10 microthrombotic donors, 5 donors with severe glomerular microthrombus were discarded. Conclusions: Donor-induced DIC can easily cause renal glomerular microthrombus formation, and the donor kidney rejection rate has increased.

This study investigated the sex-specific differences in the correlation between intestinal microbiota and end-stage renal disease. Here, we compared the differences in the gut microbiota of male and female healthy controls (HC) and patients with end-stage renal disease (ESRD) caused by immunoglobulin A (IgA) nephropathy (ESRD-IgAN) or type-2 diabetes mellitus (ESRD-T2DM) using high-throughput sequencing of the 16S rRNA gene. We also analyzed the correlation between gut microbiota and clinical immune indicators. We assigned 8, 10, 5, 7, 11, and 20 volunteers to female HC, ESRD-IgAN, and ESRD-T2DM, and male HC, ESRD-IgAN, and ESRD-T2DM, respectively. The results showed sex-specific differences in both physiological and biochemical indices and intestinal microbiota composition, as well as the correlation between them. The correlations between physiological and biochemical indices in men were significantly lower than those in women, especially for indices related to immunity, blood glucose, and cardiac color sonography. Urine output, lymphocyte ratio, serum albumin, blood calcium, dialysis status, serum urea nitrogen, urine protein, and diabetes significantly correlated with male fecal microbiota composition, whereas only creatinine and 2-h post-prandial blood glucose significantly correlated with female fecal microbiota composition. The top 50 dominant operational taxonomic units showed a stronger correlation with physiological and biochemical indices in samples obtained from females than from males. These differences highlight sex-specific differences in the effectiveness of ESRD prevention and treatments via regulating intestinal microbiota.

背景:胰肾联合移植是治疗终末期糖尿病肾病的主要方法,供胰的质量直接关系到受者的手术安全及长期存活,但是国内目前对于胰肾联合移植供胰评估标准并无统一规范.目的:总结分析63例脑死亡器官捐献供者供胰的评估标准.方法:回顾性分析2016年9月至2018年11月广州医科大学附属第二医院完成脑死亡器官捐献潜在供胰的评估、获取及胰肾联合移植的临床资料.供胰和供肾来源于器官获取组织主导的公民器官捐献,脑死亡供者根据《中国脑死亡判定标准(成人)》进行判定.通过胰肾联合移植供胰评估的主要标准、次要标准和禁忌证,对供者进行严格评估和筛选.结果 与结论:对168例供者进行严格评估,共成功完成63例胰肾联合移植供胰的评估、获取和手术,供胰的冷缺血时间为145-320 min.手术方法均采用改良的同侧胰肾联合移植术.63例患者手术过程顺利,1例受者术后需口服降糖药,1例受者恢复胰岛素使用,余受者血糖正常,均成功摆脱降糖药和胰岛素,取得了良好的手术效果.结果 表明,采用作者所在移植中心胰肾联合移植前供胰评估标准,可以简单有效地进行供胰评估,提高了供胰利用率,并取得了良好的手术效果.

BACKGROUND:To explore the safety and efficacy of direct antiviral therapy in patients with hepatitis C virus (HCV) infection after renal transplantation.METHODS:We retrospectively reviewed the medical information of 15 cases of HCV+ patients treated with direct antiviral therapy after renal transplantation in our center. The effectiveness of direct antiviral therapy was evaluated by analyzing the HCV-RNA levels of patients at 1, 4, 12, 24, and 48 weeks before and after antiviral therapy. In addition, parameters including the rejection rate, the blood concentration of anti-rejection drugs, liver function level [alanine aminotransferase (ALT), aspartate transaminase (AST)], estimated glomerular filtration rate (eGFR) and serum creatinine (CREA) levels were used to assess its safety.RESULTS:A total of 15 patients were enrolled in the study. All patients turned HCV-RNA negative after 12 weeks of direct-antiviral therapy; the serological test of all patients demonstrated an 100% response rate in rapid virological response (RVR) (15/15), 12-week sustained virological response (SVR12), and 24-week sustained virological response (SVR24). In addition, compared to pre-treatment, the liver function within 12, 24, and 48 weeks after treatment was significantly improved. Moreover, eGFR, CREA, and anti-rejection drug concentration remained stable while acute rejection reaction and other obvious side effects were not observed throughout the treatment period.CONCLUSIONS:The direct antiviral therapy was well-tolerated and effective for patients with chronic hepatitis C after renal transplantation.

BACKGROUND:To explore the impact of the use of vasoactive drugs in donation after cardiac death (DCD) donors on graft function, with an attempt to guide the clinical practices of organ preservation and DCD kidney transplantation. METHODS:The clinical data of 187 DCD donors and 304 recipients who were operated on in our center from February 2018 to May 2019 were retrospectively analyzed. Based on whether vasoactive drugs were used for maintaining blood pressure in DCD donors, the renal donors and recipients were divided into a high-dose group (norepinephrine ≥1.3 µg/kg/min or in combination with dopamine), a low-dose group (norepinephrine <1.3 µg/kg/min or in conjunction with dopamine), and a no-medication group (without the use of vasoactive drugs). The clinical features, post-transplant renal function, and complications were compared among these three groups. RESULTS:The early renal function 1 and 7 days after surgery was significantly superior in the high-dose group and no-medication group (P<0.05) but showed no significant difference between the low-dose group and the no-medication group (P>0.05). Blood urea nitrogen (BUN) on the 1st postoperative days was significantly higher in the high-dose group than in the low-dose group and the no-medication group (P<0.05). Renal function indicators, including serum creatinine (CRE), BUN, and blood uric acid (UA) on the 30th postoperative day, showed no significant difference among these three groups (P>0.05). The incidence of delayed graft function (DGF) after renal transplantation was significantly higher in the high-dose group than in the low-dose group and the no-medication group (P<0.05), whereas there was no significant difference between the groups in the incidences of graft rejection and infections (P>0.05). CONCLUSIONS:The use of vasoactive drugs in DCD donors can affect the early recovery of renal function in renal transplant recipients, particularly for those donors who are administered a high dose of vasoactive drugs. Therefore, donor maintenance should be performed cautiously with vasoactive drugs.

Background To investigate the application of the superior mesenteric artery (SMA) for the in vitro reconstruction of the hepatic artery for liver transplantation, and to improve the success rate and safety of donor liver transplantation. Methods The donor liver and the pancreas were obtained, and the SMA and its branches were used to reconstruct the hepatic artery. Liver transplantation was performed after reconstruction to understand the intraoperative situation after donor liver opening, as well as postoperative liver function. Color Doppler ultrasound of the transplanted liver was also performed. Results During the period from September 2016 to March 2020, a total of 98 pancreases were obtained. The common hepatic artery and gastroduodenal artery loop (CHA-GDA) were preserved to the donor pancreas, and only the proper hepatic artery (PHA) or left/right hepatic artery (LHA/RHA) were preserved to the donor liver. If the PHA of the donor liver was short or absent, the SMA was used for lengthening the PHA or in vitro reconstruction of the LHA/RHA, followed by implantation of the donor liver after reconstruction. A total of 17 cases of this type of donor liver required mesenteric artery lengthening or reconstruction. After opening, the donor liver was well-filled, bile secretion was normal, and liver function recovered as scheduled after surgery. Color Doppler ultrasound and CT angiography (CTA) of the transplanted liver revealed that hepatic arteries were normal without complications such as hepatic artery embolism. Conclusions In vitro reconstruction of the hepatic artery with the SMA is an effective new method of vascular reconstruction, which ensures the blood flow of the hepatic artery, reduces the anastomosis difficulty of the arteries of the donor liver, and reduces the occurrence of vascular complications.

BACKGROUND:Memory T cells (Tms) are the major barrier preventing long-term allograft survival in presensitized transplant recipients. The OX40/OX40L pathway is important in the induction and maintenance of Tms.METHODS:In this study, we added anti-OX40L mAb to ethylene-carbodiimide-fixed donor splenocytes (ECDI-SPs)-a method which is effective in inducing allograft tolerance in non-presensitized mouse heart transplant model. Recipient mice received heart transplantation after 6 weeks of donor skin presensitization and were treated with anti-OX40L mAb, ECDI-SPs or anti-OX40L mAb + ECDI-SPs, respectively.RESULTS:Our data showed that the combination of ECDI-SPs and anti-OX40L mAb induced donor-specific tolerance in skin-presensitized heart transplant recipients, with the mechanism for this being associated with suppression of Tms and upregulation of CD4+CD25+Foxp3+ T regulatory cells (Tregs). Importantly, CD25+ T-cell depletion in the combined therapy-treated recipients broke the establishment of allograft tolerance, whereas adoptive transfer of presensitization-derived T cells into tolerant recipients suppressed Tregs expansion and abolished established tolerance.CONCLUSIONS:Blockade of OX40/OX40L pathway in combination with ECDI-SPs appears to modulate the Tms/Tregs imbalance so as to create a protective milieu and induce graft tolerance in presensitized recipients.

BACKGROUND:The high incidence of post-transplant diabetes mellitus (PTDM) necessitates the identification of new factors to explain its pathogenesis. This study aimed to clarify the association between the C-peptide index (CPI) and PTDM.METHODS:A total of 290 non-diabetic kidney transplant patients were analyzed. All subjects underwent a 75 g oral glucose tolerance test (OGTT). Plasma glucose concentrations, serum C-peptide levels, hemoglobin A1c (HbA1c), and other biochemical indicators were measured. CPI was calculated as the ratio of serum C-peptide to plasma glucose.RESULTS:Among the 290 patients, 36 (12.4%) developed PTDM at the end of 1 year. Patients with PTDM had older age (P<0.001), higher levels of body mass index (BMI) (P=0.004) and HbA1c (P=0.001), a higher proportion of deceased donors (P=0.045), and lower levels of 2 h-CPI (P=0.02) than those without PTDM. The OGTT 2 h-CPI was positively correlated with BMI, HbA1c, type of calcineurin inhibitor, albumin, and triglyceride. Multivariate logistic regression and Cox hazard model analysis showed that pre-transplant OGTT 2 h-CPI was an independent predictor for the development of PTDM, together with age, BMI, and HbA1c.CONCLUSIONS:Of the pre-transplant factors studied, OGTT 2 h-CPI proved to be an independent predictor of PTDM.

Objective To preliminarily explore the clinical efficacy of ipsilateral simultaneous pancreas and kidney transplantation (SPK) .Methods Ipsilateral SPK was performed in 40 patients from September 2016 to August 2018 .During a follow-up period of 6 to 29 months ,we summarized the efficacy and complications of the technique .Results Up to now ,38 patients achieved an exceelent clinical efficacy with no major surgical complications .However ,two patients died of severe pneumonia .The postoperative serum levels of creatinine at 3 ,6 ,12 ,24 months were 107 ,102 ,107 ,110 umol/L ;creatinine clearance rate 64 ,67 ,64 ,63 ml/min;fasting glucose 4 .6 ,5 .1 ,4 .6 ,5 .2 mmol/L ;glycated hemoglobin 4 .8％ , 5 .4％ ,4 .9％ ,5 .2％ respectively .And 1/2-year pancrea and kidney graft survival rates both were 92％ . Complications included kidney graft rejection (n= 11) ,pancreas graft rejection (n= 12) ,simultaneous renal & pancreas graft rejection (n=6) ,renal graft DGF (n=1) ,pulmonary infection (n=14) ,urinary tract infections (n=18) ,gastrointestinal bleeding (n=10) diarrhea (n=6) ,splenic venous thrombosis (n=2) ,incomplete ureteric obstruction of renal allograft (n=3) ,urine leakage (n=1) and pancreas allograft dysfunction (n= 2) .There were no severe surgical complications .After aggressive interventions ,all postoperative complications were cured and none required excision of kidney or pancreas .Conclusions Ipsilateral SPK has definite therapeutic efficacy and it is worth wider popularization .

Background: In this paper, the regular flow of ultrasound-guided renal allograft biopsies was established by analyzing complications and clinical management principle of ultrasound-guided renal allograft biopsies, to increase the safety of ultrasound-guided renal allograft biopsies. Methods: The purpose of this study was to analyze the cases of ultrasound-guided renal allograft biopsies in our hospital from January 2006 to October 2018 because of abnormal renal function (including symptoms of albuminuria and elevated serum creatinine). The type of puncture needle used in renal allograft biopsies, the number of puncture needle and the relationship between puncture needle and complication were counted, and the treatment measures were analyzed. Results: From January 2006 to October 2018, a total of 487 patients underwent ultrasound-guided renal allograft biopsies in our hospital. Among them, the successful sampling rate was 98.8%, and the average number of glomeruli per specimen was 15.24 +/- 2.26. The complications of the patient after puncture included: perirenal hematomas, subcapsular hematomas, acute ureter obstruction caused by hematuria, gross hematuria, and microscopic hematuria. Among them, two patients were treated with open surgery to save the function of renal transplantation, and the primary treatment measures were to increase the absolute bed rest time. The symptoms of the patients were relieved after treatment. Conclusions: The analysis showed that ultrasound-guided renal allograft biopsies are safe and feasible, and the analysis of the biopsies of patients can provide meaningful pathological information for the clinic.

Pancreas transplantation is an effective therapy for diabetic patients, which can significantly improve the survival rate and quality of life of diabetic patients. According to the international registration of pancreas transplantation center, the global total pancreas transplantation has reached more than 80,000 cases by 2017, including pure pancreas transplantation and simultaneous pancreas-kidney transplantation (SPK). With the development and application of a new type of immunosuppressant, with the gradual maturity of organ preservation technology and surgical technology, the pancreas transplantation has rapidly on a global scale. However, pancreas transplantation still has more problems than limit its development compared with other organ transplantation. For example, the early diagnosis and treatment of pancreatic rejection are of considerable significance to the prognosis of pancreas transplantation. Some surveillance methods of diagnosis have been used increasingly, among which the histopathological diagnosis is particularly important. The first Banff schema for the histological diagnosis of pancreas rejection has been published, which primarily dealt with the diagnosis of acute T-cell-mediated rejection (ACMR). In recent years, antibody-mediated rejection (AMR) has been more emphasized as the primary cause of graft failure. The Banff pancreas allograft rejection grading schema was updated in 2011 by a broad-based multidisciplinary panel, presenting comprehensive guidelines for the diagnosis of AMR.

BackgroundTo preliminarily explore the clinical effect of the homolateral simultaneous pancreas and kidney (SPK) transplantation in China.MethodsSPK using the surgical technique was performed in 88 patients from September 2016 to July 2019 in the Department of Transplantation of the Second Affiliated Hospital of Guangzhou Medical University. Patients were followed up for 2 to 36 months to summarize the efficacy and complications.ResultsUp to now, 83 patients have achieved good clinical efficacy with no major surgical complications, but 3 patients died of severe infection and 2 have graft loss. The serum creatinine (Scr) at 1, 3, 6, 12, 24 months after operation were 118, 119, 116, 114, 110 umol/L; fasting blood glucose were 5.8, 5.0, 5.0, 4.9, 4.8 mmol/L; and glycated hemoglobin at 3, 6, 12, 24 months after transplantation were 5.2%, 5.5%, 5.2%, 5.1%. One- and 2-year patient, pancreas, and kidney graft survival rates were 96.1%, 93.8%, 95.0% and 96.1%, 93.8%, 95.0%. Main complications included 20 cases of kidney rejection (22.7%), 22 cases of pancreas rejection (25.0%), 31 cases of pulmonary infection (35.2%), 28 cases of gastrointestinal bleeding (31.8%), 2 cases of splenic vein thrombosis (2.3%), 2 case of artery thrombosis and anastomotic leak (2.3%) and 2 cases of pancreas allograft dysfunction (2.3%).Conclusionshomolateral simultaneous pancreas-kidney transplantation has a definite therapeutic effect. The relatively simple surgical method can be done with a smaller wound in unilateral fossa iliaca.

Background: Although immunosuppressive agents used in recipients of organ transplants can suppress T cell immune responses, type 1 allergy to ingested or inhaled allergens after organ transplantation have frequently been reported in pediatric patients. This study aims to investigate the relationship between the use of immunosuppressive agents and the transplant-acquired allergy (TAA) in adult renal transplant recipients (RTRs). Methods: Seventy-nine RTRs treated in our hospital from February 2015 to February 2016 were interviewed for allergic diseases by using a standard questionnaire. UniCAP allergen screening tests were performed to detect total IgE and specific IgE levels before and after renal transplantation after the use of calcineurin inhibitor tacrofimus (FK506) or cyclosporin A (CsA). The follow-up visits were scheduled for 6 months, 1 year, 2 years, and 3 years after transplantation. Results: Allergen sensitization occurred in 9 of 79 patients. Among them, the sensitization occurred in 2 cases within 6 months after renal transplantation, in 1 case from 6 months to 1 year, in 3 cases from 1 to 2 years, and in 3 cases from 2 to 3 years. The majority of sensitization was induced by inhaled allergens (n=7), among whom 3 patients (3/79, 3.8%) had a history of type I allergy, which occurred within 6 months after transplantation in 2 cases (allergic dermatitis) and from 2 to 3 years in 1 case (diarrhea after peanut allergy). The total IgE levels of RTRs using immunosuppressive agents at different time points including 6 months, 1 year, 2 years, and 3 years after renal transplantation were significantly lower than that before surgery (all P<0.05). Sensitization occurred in 8 RTRs using FK506 and in 1 patient treated with CsA (P=0.432), and allergies occurred in 3 RTRs using FK506 and were not found among CsA users (P=0.561). Conclusions: Administration of immunosuppressive agents in adult RTRs cannot wholly prevent allergy or sensitization. Studies with larger sample sizes and more extended follow-up periods arc still required to further explore the potential association between the use of FK506 and CSA and the allergies or sensitization.

BACKGROUND:Simultaneous pancreas-kidney (SPK) transplants for patients with type 1 diabetes mellitus (T1DM) remains disproportionately higher than that for type 2 diabetes mellitus (T2DM) patients. However, understanding the surgical outcomes for these patients is not well described. Therefore, the results of DM patients with end-stage renal disease and their transplantations were reported. METHODS:Between September 2016 and June 2019, 63 SPK transplants were performed in our organ transplantation center. χ2 and t-test compared the variables between the groups and the record review verified the patient survival. Using Kaplan-Meier survival estimates and Cox proportional hazards regression, we examined the influence of SPK on patient and graft survivals. RESULTS:Sixty-three SPK transplantation was performed, 18 (29%) were T1DM, and 45 (71%) T2DM. T2DM recipients had older age, duration of diabetes, and pretransplant dialysis time. No differences were found in human leukocyte antigen (HLA) mismatch, body mass index (BMI), and other variables. Patient survivals for T1DM was 98.2% and 94.8% at 1 and 2 years vs. 100% and 94.1% for T2DM recipients (P=0.87). There was no increased risk between kidney disease, pancreas failure, or death when comparing T2DM and T1DM. CONCLUSIONS:In our single-center cohort of SPK transplants, we concluded that SPK recipients with T2DM diagnosis were not at increased risk for death, kidney failure, or pancreas failure when compared with recipients with T1DM.

This study aimed to investigate the protective effects of EGb761, a Ginkgo Biloba extract, against brain death-induced kidney injury. Sixty male Sprague Dawley rats were randomly divided into six groups: sham, brain-death (BD), BD + EGb b48h (48 hours before BD), BD + EGb 2 h (2 hours after BD), BD + EGb 1 h, and BD + EGb 0.5 h. Six hours after BD, serum sample and kidney tissues were collected for analyses. The levels of blood urea nitrogen (BUN) and serum creatinine significantly elevated in the BD group than in sham group. In all the EGb761-treated BD animals except for the BD + Gb 2 h group, the levels of BUN and serum creatinine significantly reduced (all P < 0.01). EGb761 attenuated tubular injury and lowered the histological score. In addition, the longer duration of drug treatment was, the better protective efficacy could be observed. EGb761 significantly reduced IL-1β, IL-6, TNF-α, MCP-1, IP-10 mRNA expression and macrophage infiltration in the kidney. EGb761 treatment at 48 hour before brain death significantly attenuate the levels of p-JNK-MAPK, p-p38-MAPK, and p-STAT3 proteins (all P < 0.05, compared to BD group). In summary, our data showed that EGb761 treatment protected donor kidney from BD-induced damages by blocking SAPK and JAK-STAT signalings. Early administration of EGb761 can provide better protective efficacy.