Lower Glomerular Filtration Rate Research Articles

Anemia in Patients After Stem Cell Transplantation and in Kidney Transplant Recipients

Hematopoietic stem cell transplant (HSCT) is the treatment of choice in various hematologic diseases, and kidney transplantation (KTx) is the best therapy for end-stage kidney disease. Chronic kidney disease (CKD) occurs relatively often after both types of transplantations. Anemia after both HSCT and KTx may be due to CKD and other reasons. This study aimed to assess the prevalence of anemia to CKD in 156 prevalent patients after HSCT and 80 after KTx. According to the World Health Organization's definition (hemoglobin <13 g/dL for men and <12 g/dL for women), the prevalence of anemia in the studied cohort after HSCT was 13% in women and 35% in men and for those after KTx, it was29% in men and 11%. Anemia in KTx was found in 46% of patients, whereas CKD was present in 53%. After HSCT, anemia was associated with CKD in 56% of women and 17% of men. In KTx, anemia and CKD was diagnosed in 21% of patients. Patients with anemia after KTx had significantly lower glomerular filtration rate (GFR), hemoglobin, and significantly higher creatinine levels. Age was related to the estimated GFR (eGFR; r = -0.39, P < .001) in patients who underwent HSCT and had anemia. In patients without anemia, age was negatively related to eGFR (r = -0.56, P < .001) and the hemoglobin-to-platelet count (r = 0.62, P < .001). In KTx, hemoglobin was related to eGFR (r = 0.35, P < .001), and age was related to eGFR (r = -0.20, P < .05). The type of induction therapy immunosuppressive regimen (anti-thymocyte globulin vs basiliximab vs no induction) did not affect the prevalence of anemia in the KTx population studied. Anemia is relatively common in CKD after HSCT. In both CKD and coexistent anemia, nephrology referral is to be considered to optimize therapy, including nephroprotection.

Association between the response of intravitreal antivascular endothelial growth factor injection and systemic factors of diabetic macular edema

BackgroundThis study investigated the effects of systemic factors in response to intravitreal injections in patients with macular edema due to non-proliferative diabetic retinopathy (NPDR).MethodsWe retrospectively reviewed the medical records of patients treated with intravitreal injections for macular edema secondary to NPDR between January 2018 and January 2021. The patients were divided into three groups according to the injection response. When patients with diabetic macular edema showed 20µ or more reduction in central retinal thickness compared to baseline, they were classified as responsive group, and if not, they were classified as refractory group. The responsive group was further divided into the complete and incomplete response groups. Patients with complete disappearance of edema at seven months were classified as the complete response group, whereas those in which edema did not disappear were classified as the incomplete response group. The clinical characteristics of each group, including medical history, ophthalmic examination results, and laboratory examination results at the time of diagnosis, were analyzed.ResultsOf the 112 eyes (91 patients) that satisfied the inclusion criteria, 89 (77 patients) in the responsive group and 23 (14 patients) in the refractory group were included in the analysis. The responsive group was further divided into the complete (51 eyes) and incomplete (38 eyes) response groups. The refractory group had significantly higher glycated hemoglobin levels and significantly lower estimated glomerular filtration rates than the responsive group (p = 0.026 and p = 0.012, respectively). In the multivariate logistic regression analysis, both factors were found to be significant in predicting the degree of response (all p < 0.05). No factor showed a significant difference between the incomplete and complete response groups(all p > 0.05).ConclusionsIn macular edema caused by NPDR, low glomerular filtration rates and high glycated hemoglobin levels may be used as predictors of poor response to intravitreal injection therapy. In addition to blood glucose control, education should be provided regarding the need for the continuous monitoring of renal function.

Lower glomerular filtration rate after mild stroke induces cognitive impairment by causing endothelial dysfunction

The incidence of post stroke cognitive impairment (PSCI) is high in patients with mild stroke (MIS), and the risk factors and mechanism are uncertain. Increased cystatin C (CysC) levels after stroke may reflect lower glomerular filtration rate (GFR) and renal impairment. Previous studies have suggested endothelial dysfunction (ED) is closely related to renal impairment and cognitive impairment, respectively. We aimed to observe whether lower GFR estimated by CysC after MIS leaded to a high incidence of PSCI, and the role of ED in this process. 256 patients were enrolled in this prospective observational study. Renal function was assessed using GFR estimated by serum CysC. Endothelial function was evaluated by reactive hyperemia index (RHI) which calculated automatically by peripheral arterial tonometry (PAT). The cognitive function at baseline and 3 months was evaluated by MoCA score, and MoCA score ≤ 26 indicates the presence of PSCI. Spearman correlation analysis and linear regression were conducted to explore the factors affecting ED. Univariate and multivariate analysis was used to identify the independent risk factors of PSCI. The receiver operating characteristic (ROC) curve was applied to explore the optimal cutoff value of the independent risk factors levels for predicting PSCI. A total of 141 patients (55.1%) suffered from ED. Multiple linear regression analysis showed that there was a strong linear correlation between eGFRcys and RHI (p < 0.001). At the three-month follow-up, a total of 150 (58.6%) patients had been diagnosed with PSCI. Multivariate logistic regression analysis showed that RHI was an independent factor affecting the occurrence of PSCI (p < 0.05). ROC curve showed that the area under the curve was 0.724, and the optimal cut-off value of RHI was 1.655, with the sensitivity and specificity for PSCI were 72.7% and 73.6%, respectively. The lower eGFRcys level after MIS was significantly associated with ED, and ED may mediate the higher incidence of PSCI at 3 months after MIS.

Association between soft drinks intake and low glomerular filtration rate in Mexican adults: Results from RenMex

To evaluate the association between soft drinks (SDs) consumption and estimated glomerular filtration rate (eGFR) in a Mexican adult population. We used data from the RenMex consortium (n=2095) that included the Mexican Teachers Cohort Study (34-65 years), the Health Workers Cohort Study (18-90 years), and the Comitán Study (19-91 years). In this cross-sectional study, we assessed SDs consumption (cola and flavored soda) using a food frequency questionnaire (FFQ) and estimated eGFR using the CKD Epidemiology Collaboration equation. Quantile regression was used to assess the association between SDs consumption and eGFR with eGFR as a continuous variable. Multinomial logistic regression models were used for eGFR categories derived from quantile regression (mildly decreased eGFR, ≥72.9-87.9mL/min/1.73m2 and moderately decreased eGFR, <72.9mL/min/1.73m2). Mean age of study participants was 47.2 years, 67.5% were women, and 12.2% had diabetes. eGFR was <60mL/min/1.73m2 in 3.7% of study participants. Mildly decreased eGFR was present in 14.8%, and moderately decreased eGFR was present in 10.1% of study participants. Quantile regression results showed that SDs consumption was associated with lower eGFR at the 10th, 25th, 50th and 75th percentile. Based on the final adjusted multinomial model, ≥7 servings/week was positively associated with moderately decreased eGFR relative to <1 serving/week (Relative Risk Ratio=1.95; 95% CI: 1.07-3.57). Our results suggest that higher SDs consumption is associated with lower eGFR. Encouraging healthy dietary choices should be part of the management and prevention of CKD.

The Association Between Thyroid Hormones and Renal Function in Euthyroid Chinese Individuals: A Population-Based Cross-Sectional Study.

Objective This population-based cross-sectional study aimed to investigate the association between thyroid hormones and renal function in euthyroid Chinese individuals, as the relationship between thyroid hormones and renal function in this population remains unclear. Methods A total of 661 participants were included in the study after excluding individuals with thyroid diseases, incomplete clinical measurements, or those taking medications affecting thyroid function. Participants were categorized into three groups based on serum thyroid hormone and antibody levels. The study adjusted for covariates and assessed the glomerular filtration rate (GFR) and urine albumin-to-creatinine ratio (ACR) in relation to thyroid hormone levels. Results After adjusting for covariates, the study found a significant increase in GFR in the middle and highest tertiles of free triiodothyronine (FT3) and the highest tertile of total triiodothyronine (TT3). Serum FT3 and TT3 levels were significantly associated with GFR. Additionally, the study observed a significantly lower GFR in the highest tertile of thyroid-stimulating hormone (TSH) compared to the lowest tertile. However, thyroid hormone and antibody levels were not associated with the ACR. Furthermore, the highest tertiles of TT3 and total thyroxine (TT4) were associated with a decreased risk of chronic kidney disease (CKD). Conclusion In our study among euthyroid Chinese individuals, we observed a significant association between thyroid functionand GFR. Specifically, lower FT3, TT3, and higher TSH were associated with reduced GFR, indicating a potential role for thyroid hormones in maintaining renal function. Furthermore, lower levels of TT3and TT4were associated with an increased risk of CKD. These findings suggest a direct link between thyroid and renal function, even in euthyroid individuals, emphasizing the need for further investigation to elucidate the underlying mechanisms and potential therapeutic implications.

Clinical characteristics and risk factors associated with bone erosion in patients with tophi

IntroductionIf a large amount of urate crystals is deposited in a joint cavity for an extended period of time, bone erosion will occur and gradually cause skeletal muscle necrosis and joint deformity. The aim of this study was to describe the clinical characteristics and factors associated with bone erosion in gout patients with tophi.MethodsA total of 210 gout patients with tophi were enrolled and divided into a bone erosion group (n = 135) and a non-bone erosion group (n = 75). Digital radiography (DR) was performed to detect bone erosion in the elbow, wrist, knee, ankle joints, interphalangeal and metatarsophalangeal joints. The clinical characteristics were recorded and compared between the two groups. Multivariate logistic regression analysis was conducted to explore the factors associated with bone erosion.ResultsCompared with the non-bone erosion group, the bone erosion group had an older age, longer disease duration of gout and tophi, higher level of serum creatinine (sCr), higher proportion of drinking history and ulceration, and a lower glomerular filtration rate (GFR). Univariate logistic regression analysis results showed that sex, age, body mass index (BMI), gout duration, tophi duration, GFR, white blood cell (WBC) count, sCr level, smoking history, drinking history, and presence of ulceration were associated with bone destruction. Multivariable logistic regression analysis results indicated that tophi duration, drinking history, ulceration and sCr were positively and independently related to bone erosion.ConclusionsTophi patients with bone erosion presented different clinical characteristics. Tophi duration, drinking history, ulceration and sCr were associated with bone erosion in gout patients with tophi.

How can inhibition of glucose and sodium transport in the early proximal tubule protect the cardiorenal system?

What mechanisms can link the inhibition of SGLT2-mediated Na+-coupled glucose reabsorption in early proximal tubules to kidney and heart protection in patients with and without type 2 diabetes? Due to physical and functional coupling of SGLT2 to other sodium and metabolite transporters in the early proximal tubule (including NHE3, URAT1), inhibitors of SGLT2 (SGLT2i) reduce reabsorption not only of glucose, inducing osmotic diuresis, but of other metabolites plus of a larger amount of sodium than expected based on SGLT2 inhibition alone, thereby reducing volume retention, hypertension, and hyperuricemia. Metabolic adaptations to SGLT2i include a fasting-like response, with enhanced lipolysis and formation of ketone bodies that serve as additional fuel for kidneys and heart. Making use of the physiology of tubulo-glomerular communication, SGLT2i functionally lower glomerular capillary pressure and filtration rate, thereby reducing physical stress on the glomerular filtration barrier, tubular exposure to albumin and nephrotoxic compounds, and the oxygen demand for reabsorbing the filtered load. Together with reduced gluco-toxicity in the early proximal tubule and better distribution of transport work along the nephron, SGLT2i can preserve tubular integrity and transport function and, thereby, GFR in the long-term. By shifting transport downstream, SGLT2 inhibitors may simulate systemic hypoxia at the oxygen sensors in the deep cortex/outer medulla, which stimulates erythropoiesis and, together with osmotic diuresis, enhances hematocrit and thereby improves oxygen delivery to all organs. The described SGLT2-dependent effects may be complemented by off-target effects of SGLT2i on the heart itself and on the microbiome formation of cardiovascular-effective uremic toxins.

Role of perirenal adiposity in renal dysfunction among CKD individuals with or without diabetes: a Japanese cross-sectional study

IntroductionIt remains unclear whether increased perirenal fat (PRF) accumulation is equally related to renal involvement in patients with and without diabetes mellitus (DM). We evaluated the association between PRF volume...

Trends and outcomes of heart transplantation in adults with congenital heart disease.

Heart transplantation for adult congenital heart disease is complicated and associated with challenging pretransplant support, long waiting, and high early post-transplant mortality. We explored if surgical and medical advances, and allocation system changes have affected outcomes. From United Network for Organ Sharing database, adults with congenital heart disease listed for heart transplantation were queried. To explore practice and outcome trends, patients were divided into 4 eras (eras1-3: nearly 3 equal periods from 1992-2018, era-4: after 2018, corresponding with new allocation system). Univariate and multivariable analysis was performed to evaluate outcomes. 2737 patients were listed. There was gradual increase in listed and transplanted patients, along with significant increase in use of mechanical support, simultaneous kidney and liver transplantation. While proportion of transplanted remained constant, there was decrease in proportion delisted/died after listing (p = 0.01) and waiting list duration (p = 0.01), especially in era-4. 30-days post-transplant mortality remains high, however, it has significantly improved starting era-3 (p = 0.01). Current survival at 1-year and 5-years is 85% and 65%, with improvement mainly related to decreased early death. On multivariable analysis, factors associated with survival were lower glomerular filtration rate (HR = 0.99, p = 0.042), bilirubin (HR = 1.17, p < 0.001), and mechanical ventilation (HR = 2.3, p = 0.004). Heart transplantation in adults with congenital heart disease is increasing, along with added complexity, higher usage of pretransplant mechanical support and simultaneous organ transplantation. Despite that, more complex patients don't experience worse outcomes. Early mortality improved but remains high. New donor allocation system allowed shorter waiting time and higher proportion transplanted without altering early mortality.

Discrepancies between transcutaneous and estimated glomerular filtration rates in rats with chronic kidney disease

Accurate assessment of the glomerular filtration rate (GFR) is crucial for researching kidney disease in rats. Although validation of methods that assess GFR is crucial, large-scale comparisons between different methods are lacking. Both transcutaneous GFR (tGFR) and a newly developed estimated GFR (eGFR) equation by our group provide a low-invasive approach enabling repeated measurements. The tGFR is a single bolus method using FITC-labeled sinistrin to measure GFR based on half-life of the transcutaneous signal, whilst the eGFR is based on urinary sinistrin clearance. Here, we retrospectively compared tGFR, using both 1- and 3- compartment models (tGFR_1c and tGFR_3c, respectively) to the eGFR in a historic cohort of 43 healthy male rats and 84 male rats with various models of chronic kidney disease. The eGFR was on average considerably lower than tGFR-1c and tGFR-3c (mean differences 855 and 216 μL/min, respectively) and only 20 and 47% of measurements were within 30% of each other, respectively. The relative difference between eGFR and tGFR was highest in rats with the lowest GFR. Possible explanations for the divergence are problems inherent to tGFR, such as technical issues with signal measurement, description of the signal kinetics, and translation of half-life to tGFR, which depends on distribution volume. The unknown impact of isoflurane anesthesia used in determining mGFR remains a limiting factor. Thus, our study shows that there is a severe disagreement between GFR measured by tGFR and eGFR, stressing the need for more rigorous validation of the tGFR and possible adjustments to the underlying technique.

Evaluation and Management of Hyponatremia in Heart Failure.

To provide a contemporary overview of the pathophysiology, evaluation, and treatment of hyponatremia in heart failure (HF). Potassium and magnesium losses due to poor nutritional intake and treatment with diuretics cause an intracellular sodium shift in HF that may contribute to hyponatremia. Impaired renal blood flow leading to a lower glomerular filtration rate and increased proximal tubular reabsorption lead to an impaired tubular flux through diluting distal segments of the nephron, compromising electrolyte-free water excretion. Hyponatremia in HF is typically a condition of impaired water excretion by the kidneys on a background of potassium and magnesium depletion. While those cations can and should be easily repleted, further treatment should mainly focus on improving the underlying HF and hemodynamics, while addressing congestion. For decongestive treatment, proximally acting diuretics such as sodium-glucose co-transporter-2 inhibitors, acetazolamide, and loop diuretics are the preferred options.

Biochemical profile of patients in ketosis-prone diabetes state in Côte d’Ivoire

: Diabetes keto-acidosis is the most serious hyperglycemic emergency in patients with diabetes. DKA has long been considered a key clinical feature of T1D. In this study, we assessed biochemical disorders focused on lipid and renal parameters in KPD.: We carried out a case-controls study for one year, encompassing 200 participants in total. Patients were outpatients newly diagnosed diabetics attending for the first time hospitals, controls were no-ketosis participants. Blood samples were taken, after 10 to 12 hours of fasting from the day before, in different tubes for each intended analyses according to instructor’s recommendation. The increased mean value of fasting blood glucose together with HbA1c are corrolated with ketonuria. As regard to cardio-metabolic risk, ketosis-prone patients were at greater risk than no-ketosis controls The mean AIP value was higher in KPD women than in men, with no significant statistical correlation. Uremia and creatininemia, two kidney parameters commonly prescribed to explore glomerular filtration, were correlated with some social indicators. The mean values of these both parameters increased significantly with age in KPD group. Creatinine increased significantly with age in patients, in line with glomerular filtration rate (GFR). The older the participants, the higher the mean values of these parameters. : These biochemical parameters, high atherogenic index and lower glomerular filtration rate, documented in our study, must be sought out when inaugural ketosis is suspected for improving the clinical prognosis of patients in the initial step of management.

Glomerular hyperfiltration as a therapeutic target for CKD.

The global burden of chronic kidney disease (CKD) is high and increasing. Early diagnosis and intervention are key to improve outcomes. Single nephron glomerular hyperfiltration is an early pathophysiologic manifestation of CKD that may result in absolute glomerular hyperfiltration, i.e. a high glomerular filtration rate (GFR) or be associated with normal or low GFR because of nephron loss (relative glomerular hyperfiltration). Even though compensatory glomerular hyperfiltration may contribute to maintain kidney function after loss of kidney mass, the associated increased glomerular capillary pressure and glomerular and podocyte size drive podocyte loss, albuminuria and proximal tubular overload, contributing to CKD progression. In this regard, all kidney protective drugs in clinical use so far, from renin-angiotensin system blockers to mineralocorticoid receptor blockers to sodium-glucose cotransporter-2 inhibitors to tolvaptan, induced an early dip in glomerular filtration that is thought to represent reversal of hyperfiltration. As glomerular hyperfiltration may be present early in the course of kidney disease, its recognition may provide an effective intervention window that may predates current criteria based on high albuminuria or loss of GFR. Nevertheless, there is no diagnostic method with high sensitivity and specificity to identify single nephron glomerular hyperfiltration, except when it leads to obvious absolute glomerular hyperfiltration, as observed in the early stages of diabetic kidney disease when nephron mass is still preserved. We now review the concept of glomerular hyperfiltration as an indicator of CKD risk, including definitions, challenges in diagnosis and evaluation, underlying pathophysiological mechanisms, potential therapeutic approaches and unanswered questions.

Association of Low Glomerular Filtration Rate With Adverse Outcomes at Older Age in a Large Population With Routinely Measured Cystatin C.

The commonly accepted threshold of glomerular filtration rate (GFR) to define chronic kidney disease (CKD) is less than 60 mL/min/1.73 m2. This threshold is based partly on associations between estimated GFR (eGFR) and the frequency of adverse outcomes. The association is weaker in older adults, which has created disagreement about the appropriateness of the threshold for these persons. In addition, the studies measuring these associations included relatively few outcomes and estimated GFR on the basis of creatinine level (eGFRcr), which may be less accurate in older adults. To evaluate associations in older adults between eGFRcr versus eGFR based on creatinine and cystatin C levels (eGFRcr-cys) and 8 outcomes. Population-based cohort study. Stockholm, Sweden, 2010 to 2019. 82 154 participants aged 65 years or older with outpatient creatinine and cystatin C testing. Hazard ratios for all-cause mortality, cardiovascular mortality, and kidney failure with replacement therapy (KFRT); incidence rate ratios for recurrent hospitalizations, infection, myocardial infarction or stroke, heart failure, and acute kidney injury. The associations between eGFRcr-cys and outcomes were monotonic, but most associations for eGFRcr were U-shaped. In addition, eGFRcr-cys was more strongly associated with outcomes than eGFRcr. For example, the adjusted hazard ratios for 60 versus 80 mL/min/1.73 m2 for all-cause mortality were 1.2 (95% CI, 1.1 to 1.3) for eGFRcr-cys and 1.0 (CI, 0.9 to 1.0) for eGFRcr, and for KFRT they were 2.6 (CI, 1.2 to 5.8) and 1.4 (CI, 0.7 to 2.8), respectively. Similar findings were observed in subgroups, including those with a urinary albumin-creatinine ratio below 30 mg/g. No GFR measurements. Compared with low eGFRcr in older patients, low eGFRcr-cys was more strongly associated with adverse outcomes and the associations were more uniform. Swedish Research Council, National Institutes of Health, and Dutch Kidney Foundation.

Serum uric acid concentration is associated with lower glomerular filtration rate in children undergoing kidney transplantation.

The relationship between serum concentration of uric acid (UA) and chronic kidney disease is complex due to many confounding variables. There is currently debate over whether hyperuricemia acts as a marker of kidney disease or as an independent risk factor. To test the impact of serum UA concentration on the estimated glomerular filtration rate (GFR) of children undergoing kidney transplantation. Prospective longitudinal study of children and adolescents after kidney transplantation. We analyzed clinical, anthropometric, and laboratory data at pre-transplant and 1, 3, and 6 months after transplant. We developed models of repeated measures analysis, using the generalized estimating equations technique for the outcome evolution of the estimated GFR at 1, 3 and 6 months. High serum UA concentration at 1 and 3 months was modeled as the main exposure variable. We included 103 transplant patients. In a model adjusted for time, recipient sex and age, the occurrence of acute rejection episodes, and the estimated glomerular filtration at baseline, the trajectory of GFR exhibited an inverse relationship with UA (β = -7.1, 95% CI: -11.5 to -2.6, p < .01). Serum UA increase was associated with lower graft function over time.

P-31 GLP1 receptor agonist in end-stage kidney disease: Are they safe and effective?

Abstract Introduction The novel antidiabetic therapies have been showing promising results in cardiovascular and renal protection besides diabetes treatment. GLP-1 receptor agonists (GLP-1RA) are well tolerated drugs with few side effects, but they are only approved for a glomerular filtration rate (GFR) higher than 15 mL/min. Anecdotal reports have been made of therapy with GLP-1RA in patients undergoing hemodialysis and intermittent hemodialysis with good results. Clinical Case A sixty-five-year-old male patient with stage 4 chronic kidney disease in the setting of hypertensive and diabetic nephropathy is accompanied at our Endocrinology Department due to non-insulin treated type 2 diabetes. His past-history was notable for atrial fibrillation, obstructive sleep apnea and chronic obstructive pulmonary disease. In what diabetes is concerned, he was under empagliflozin 10mg daily and dulaglutide 1.5mg weekly with excellent glycemic control. Despite optimized treatment and Nephrology follow-up, GFR continued to decay, standing currently at 11 mL/min, without any acute insult, acidosis or hyperkalemia. The patient is starting preparation for hemodialysis with construction of an arteriovenous fistula. At last appointment, despite the lower GFR he maintained an excellent glycemic control with HbA1c of 6% without hypoglycemia and remained clinically asymptomatic without nausea, vomiting, or abdominal pain. A pharmacokinetics study revealed a similar exposure to semaglutide independent of renal function (including severe renal impairment [10 patients] and end-stage kidney disease [10 patients]) with the drug being well tolerated in both subgroups without the need for dose adjustments. In our case, the patient maintained the weekly treatment, without reported and/or documented hypoglycemia and possible advantageous cardiovascular profile. In the future, GLP1RA may be a treatment option independently of the patient renal function.

Pharmacokinetic Interpretation of Applying Local Drug Delivery System for the Treatment of Deep Surgical Site Infection in the Spine.

Surgical site infections (SSIs) after spinal surgery present significant challenges, including poor antibiotic penetration and biofilm formation on implants, leading to frequent treatment failures. Polymethylmethacrylate (PMMA) is widely used for localized drug delivery in bone infections, yet quantifying individual drug release kinetics is often impractical. This retrospective study analyzed 23 cases of deep SSIs (DSSIs) following spinal surgery treated with antibiotic-loaded PMMA. A mathematical model estimated personalized drug release kinetics from PMMA, considering disease types, pathogens, and various antibiotics. The study found that vancomycin (VAN), ceftriaxone (CRO), and ceftazidime (CAZ) reached peak concentrations of 15.43%, 15.42%, and 15.41%, respectively, within the first two days, which was followed by a lag phase (4.91-4.92%) on days 2-3. On days 5-7, concentrations stabilized, with CRO at 3.22% and CAZ/VAN between 3.63% and 3.65%, averaging 75.4 µg/cm2. Key factors influencing release kinetics include solubility, diffusivity, porosity, tortuosity, and bead diameter. Notably, a patient with a low glomerular filtration rate (ASA IV) was successfully treated with a shortened 9-day intravenous VAN regimen, avoiding systemic complications. This study affirms the effectiveness of local drug delivery systems (DDS) in treating DSSIs and underscores the value of mathematical modeling in determining drug release kinetics. Further research is essential to optimize release rates and durations and to mitigate risks of burst release and tissue toxicity.

Pre-transplant glomerular hyperfiltration is not a risk factor for increased renal morbidity and mortality in pediatric stem cell transplant patients.

Low glomerular filtration rate (GFR) prior to stem cell transplant (SCT) is associated with increased morbidity and mortality. The implications of abnormally high GFRs, or glomerular hyperfiltration, prior to SCT are unknown. Twenty-two of 74 consecutive pediatric SCT patients over 2years old at a single center were hyperfiltrating prior to SCT, median nuclear medicine GFR 154mL/min/1.73m2 [interquartile range: 146-170]. There was no association between hyperfiltration and any transplant demographics, nor between hyperfiltration and acute kidney injury (p=.8), renal replacement therapy (p=.63), 1-year event-free survival (p=1), or abnormal creatinine-based estimated GFR at a median follow-up of 4.7years (p=.73).

Detailed cause of donor ineligibility in living donor kidney transplants: a retrospective, single-center cohort study

BackgroundLiving kidney donors are evaluated to determine their physical and psychological suitability for transplantation and ensure their safety. During this process, we frequently encounter cases where a donor is found to be ineligible. In this study, we surveyed donors who are ineligible for transplantation at our hospital to educate patients, their families, and medical staff regarding transplantation in the future. MethodsWe examined the proportion of ineligible donors among 237 potential donors who visited our hospital between January 2002 and March 2022. Data were collected retrospectively from electronic medical records and evaluated from various aspects such as age, body mass index, medical history, medications, and renal function. ResultsThe mean age at presentation was 55.5 years, the male-to-female ratio was 1:1.6, and no significant difference was found between the ineligible and eligible donor groups. The transplant ineligibility rate was 23.6%, and the categories were for medical, backout, immunologic, and recipient-related reasons, in descending order. Furthermore, a low glomerular filtration rate (GFR) was the most common cause of medical cases. ConclusionMany patients were judged ineligible because of lifestyle-related diseases such as low GFR, diabetes mellitus, and obesity. Therefore, thorough patient education should be conducted using these data as a reference to reduce the number of donors ineligible because of lifestyle-related diseases.

Prevalence of proteinuria and its associated factors in hypertensive diabetic patients.

Hypertensive diabetic patients are at increased risk for chronic kidney disease. Proteinuria is an early sign of kidney damage. Limited research is available on proteinuria and on its associated factors in hypertensive patients with diabetes. This study aimed to assess the prevalence of proteinuria and its associated factors in hypertensive diabetic patients. The current retrospective study utilized medical records and hospital computers to collect sociodemographic and medical information about the study patients in two major hospitals in Jordan. Binary regression analysis was used to find the factors that are significantly and independently associated with the presence of proteinuria. Data from 522 hypertensive diabetic patients were investigated. Factors including age (OR=0.691; 95% CI: 0.930-0.994; p<0.01), high-density lipoprotein level (OR=0.450; 95% CI: 0.211-0.960; p<0.05), and higher glomerular filtration rate (OR=0.964; 95% CI: 0.950-0.977; p<0.01) were associated with proteinuria among the study patients. In contrast to metformin (OR=0.237; 95% CI: 0.098-0.572; p<0.01), patients who received insulin (OR=1.992; 95% CI: 1.136-3.492; p<0.05), thiazide diuretics (OR=1.848; 95% CI: 1.108-3.083; p<0.05), calcium channel blockers (OR=1.833, 95% CI: 1.110-3.028, p<0.05), or beta-blockers (BBs) (OR=2.199, 95% CI: 1.257-3.848, p<0.01) had a higher likelihood of having proteinuria. For preserving kidney function, it is deemed necessary to perform regular checkups for proteinuria among hypertensive diabetic patients, particularly in young patients, patients with low levels of high-density lipoprotein, and those with a lower glomerular filtration rate.