جستجوی مقالات مرتبط با کلیدواژه « sevelamer » در نشریات گروه « پزشکی »

Hyperphosphatemia is an independent risk factor for mortality in chronic kidney disease (CKD) patients.

This systematic review and meta-analysis aimed to investigate the effect of Sevelamer on serum phosphorus levels in CKD and hemodialysis patients.

The data were obtained after searching the international databases of Cochrane, PubMed, Scopus, Web of Science, and the Google Scholar search engine until February 28, 2023. The heterogeneity of articles was assessed using the I2 index. The data were analyzed in STATA 14, and P values < 0.05 were considered significant.

A total of 22 articles were assessed with a total sample size of 3221. Sevelamer reduced calcium levels in CKD and hemodialysis patients compared with those in the comparison group (standardized mean difference [SMD]: -0.67; 95% CI: -1.23, -0.11); however, sevelamer had no significant effect on serum parathyroid hormone (PTH) levels (SMD: 0.07; 95% CI: -0.39, 0.54) and Ca × P product (SMD: -0.20; 95% CI: -0.41, 0). A significant decrease in serum phosphorus level was observed in patients who had taken sevelamer for a maximum of 12 weeks compared with the comparison group (SMD: -0.27; 95% CI: -0.54, -0.01); however, no significant decrease in serum phosphorus level was observed in patients who had taken sevelamer for more than 12 weeks. A significant decrease in serum phosphorus level was observed in sevelamer users compared to placebo group members (SMD: -0.36; 95% CI: -0.68, -0.05).

The administration of sevelamer reduced serum phosphorus levels in CKD and hemodialysis patients compared with those in the placebo group in the short term. Therefore, physicians are recommended to prescribe sevelamer for a maximum period of three months. Registration: This study has been compiled based on the PRISMA checklist, and its protocol was registered on the PROSPERO website (ID: CRD42023406804).

Chronic kidney disease is a public health problem. The purpose of this study was to compare the effects of sevelamer and calcium- based binders on mortality of hemodialysis patients. PubMed, EMBASE and Web of Science were searched for related articles published before May 14, 2020. We included six studies with 43330 participants, of which 21147 and 22183 received calcium- based phosphate binders and sevelamer, respectively. In the analysis of unadjusted data, sevelamer could lower cardiovascular mortality. When adjusted HRs was pooled, the cardiovascular mortality did not differ significantly in the sevelamer and calcium-based phosphate binders groups. Additionally, the all-cause mortality rate in sevelamer group was different from that in calcium-based phosphate binders group. However, sevelamer could not lower all-cause mortality in terms of the adjusted data. No significant difference was found in calcium and phosphorus between calcium-based phosphate binders and sevalmer. Sensitivity analysis showed that partial results of the study were inconsistent. There was no difference in the effect of sevelamer and calcium- based phosphate binders on the risk of all-cause mortality in patients with hemodialysis, after adjusting confounders. However, given the instability of the results, the results need to be further confirmed by a large sample and high quality RCTs.

 Chronic kidney disease (CKD) is a life-threatening disease with numerous complications. Hemodialysis (HD) patients are prone to magnesium deficiency due to malnutrition, which can cause cardiovascular complications and increase mortality. The present study aimed to investigate the effects of sevelamer and calcium carbonate, as phosphate binders, on serum levels of magnesium, calcium, and phosphorus in HD patients. 

 A parallel clinical trial was conducted on 54 patients undergoing HD at Kosar Hospital of Semnan. The inclusion criteria were end-stage renal disease (ESRD), alternative HD treatment for at least 3 months 3 times a week, and serum phosphate levels greater than 4.5 mg/dL. The participants were randomly assigned to two groups of sevelamer (n = 27) and calcium carbonate (n = 27). If the participants were taking a phosphate binder, they were asked to stop it for 3 weeks. Participants in the sevelamer group received 800 mg of sevelamer at most three times a day and those in the calcium carbonate group were treated with 500 mg of calcium carbonate at most 3 times a day. Before and 3 months after the intervention, the serum levels of calcium, magnesium, and phosphorus were measured through the Arsenazo method using the Pars Azmun kit in the Selectra auto-analyzer. Twenty-one patients in the sevelamer group and 22 patients in the calcium carbonate group finished the study. 

 The results showed that calcium carbonate and sevelamer increased serum magnesium level by 0.20 (P = 0.028) and 0.26 (P = 0.002), on average, which were statistically significant. The administration of calcium carbonate did not significantly change serum calcium levels (P = 0.53), whereas sevelamer reduced serum calcium levels by 0.23 (P = 0.017), on average. This reduction was statistically significant. The results also indicated that none of the calcium carbonate (P = 0.099) and sevelamer (P = 0.543) caused significant changes in serum phosphorus levels. The study findings showed no significant difference between the two groups in terms of changes in the serum levels of magnesium (0.590), calcium (0.116), and phosphorus (0.113). 

 Both drugs (Sevelamer and calcium carbonate) prevented hypomagnesemia and increased serum magnesium levels, but no significant differences were found in blood levels of calcium, phosphorus, and magnesium compared to the two drugs. Considering the effect of magnesium on cardiovascular diseases, increasing the serum magnesium levels through the administration of calcium carbonate and sevelamer can prevent the likelihood of cardiovascular diseases. However, none of the studied drugs was superior to the other in this regard.

Introduction. Nontraditional risk factors for cardiovascular disease (CVD), including mineral disorder, high fibroblast growth factor 23 (FGF23), low klotho, and low soluble TWEAK could predict the incipient risk of CVD in chronic kidney disease (CKD). The present study evaluates the effect of sevelamer on soluble tumor necrosis factor-like weak inducer of apoptosis (TWEAK), and klotho levels in adenine-induced CKD rats. Methods and Materials. Normal control rats without sevelamer were compared with 3 groups of adenine-induced CKD rats, including CKD rats without sevelamer, CKD rats treated with 3% sevelamer, and rats receiving adenine and 3% sevelamer concurrently. After 4 weeks of sevelamer treatment, serum levels of klotho and soluble TWEAK were measured, along with biochemical parameters related to kidney function. Results . Sevelamer significantly reduced serum levels of phosphate and increased serum levels of klotho and soluble TWEAK. Decreased levels of phosphate were negatively correlated with elevated levels of klotho and soluble TWEAK (r = -0.70, P = .003; r = -0.58, P = .02; respectively) in serum.
Conclusions. Sevelamer successfully reduced serum levels of phosphate, and meanwhile, it led to an elevation in serum levels of klotho and soluble TWEAK in rat models of CKD.

Diabetic nephropathy (DN) is one of the major complications of diabetes. Hyperglycemia, inflammation and oxidative stress as well as advanced glycation end products (AGEs) are reported as the risk factors for DN. Sevelamer has shown promising results in reducing inflammation and even HbA1c levels in DN.
We aim to evaluate the therapeutic effects of sevelamer on blood sugar, HbA1c level, lipid profile, and high sensitivity CRP (hs-CRP) in patients with diabetic nephropathy.
Patients and In this clinical trial, 18 patients (13 female with mean age of 61.22±9.32 years) with stages 2-4 of diabetic nephropathy were recruited. Patients were administered with 800 mg of sevelamer twice a day for three months. Blood sugar, HbA1C, hs-CRP, lipid profile and other laboratory findings were measured before and 1, 2 and three months after initiation of the treatment.
There was significant decline in HbA1c (p=0.001), postprandial blood sugar (p=0.02) and phosphorus (p Our results indicated that along with its phosphorus reducing effects, sevelamer plays an important role in decreasing postprandial blood sugar and HbA1c level. Sevelamer had no effects on lipid profile and hs-CRP.

Kayexalate and sevelamer are resin medications commonly used in the setting of chronic renal failure for the treatment of hyperkalemia and hyperphosphatemia respectively, are known to cause bowel ischemia, ulcerations, necrosis, pseudotumors and perforations and the incidence is higher after post-transplant. Herein we report its presence on the surface of a graft nephrectomy following a masked intestinal perforation.
A 30-year-old male, a renal transplant recipient for dysplastic kidney underwent graft nephrectomy due to wound infection, peri-graft collection and risk of hemorrhage from the vascular anastomotic site. Histological evaluation showed extensive acute tubular necrosis and peri-renal abscess with vegetable matter and numerous colored crystals morphologically consistent with kayexalate and sevelamer. The possibility of an underlying resin induced intestinal perforation was rendered.
Kayexalate or sevelamer induced mucosal injury in the gastrointestinal tract could be a clinical emergency and a high index of suspicion particularly in a post transplant setting may allow prompt recognition and surgical cure. From the pathologists’ view familiarity with the morphological appearances of these non-systemic resin medications and its histologic mimics enables accurate diagnosis and timely clinical intervention.