scholarly journals Diabetic Retinopathy as a Risk Factor for Chronic Kidney Disease Progression: A Multicenter Case–Control Study in Taiwan

Nutrients ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 509 ◽  
Author(s):  
Hsin-Ting Lin ◽  
Cai-Mei Zheng ◽  
Yun-Chun Wu ◽  
Yun-Hsiang Chang ◽  
Jiann-Torng Chen ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Diabetic Retinopathy ◽  
Risk Factor ◽  
Kidney Disease ◽  
Disease Progression ◽  
Diabetic Patients ◽  
Research Database ◽  
Ckd Progression ◽  
Renal Disease Progression ◽  
Patients With Diabetes

It has rarely been studied whether the presence and severity of diabetic retinopathy (DR) could influence the renal disease progression among all chronic kidney disease (CKD) diabetic patients. This study investigates the characteristics of diabetic patients, with different stages of chronic kidney disease (CKD), according to the occurrence of diabetic retinopathy and determines the influence of retinopathy in the deterioration of renal function. We conduct a multicenter, longitudinal cohort study based on the Epidemiology and Risk Factors Surveillance of the CKD project (2008–2013) and the National Health Insurance Research Database (NHIRD) (2001–2013). A total of 4050 diabetic patients with CKD, 20–85 years of age, from 14 hospitals and the community are included in this study. As compared to CKD patients without DR, CKD patients with DR have a lower baseline estimated glomerular filtration rate (eGFR) (39.17 ± 30.36 mL/min per 1.73 m2 vs. 54.38 ± 33.67 mL/min per 1.73 m2 ); poorer glycemic control (higher glycated hemoglobin (HbA1c) 7.85 ± 4.97 vs. 7.29 ± 4.02, p < 0.01); higher proteinuria (urine protein-to-creatinine ratio (UPCR )1.94 ± 2.96 g/dL vs. 0.91 ± 2.11 g/dL, p < 0.01); more anemia (Hb 11.22 ± 2.43 g/dL vs. 12.39 ± 3.85 g/dL, p < 0.01), and more hypoalbuminemia (3.88 ± 0.95 g/dL vs. 4.16 ± 1.74 g/dL, p < 0.01). Later stage (stage 3b–5) CKD patients with DR had significantly higher CKD progression compared with patients without DR (OR (odds ratio) 1.66 (1.36–2.02)). Patients with proliferative DR had significantly higher CKD progression events compared to patients with non-proliferative DR (OR 2.18 (1.71–2.78)). The presence and severity of DR is a risk factor for CKD progression among our Taiwanese CKD patients with diabetes. Prevention and early detection of DR are important and DR should be routinely screened as early as possible among diabetic CKD patients.

scholarly journals The Severity of Diabetic Retinopathy Is an Independent Factor for the Progression of Diabetic Nephropathy

2020 ◽  
Vol 10 (1) ◽  
pp. 3
Author(s):  
Shi-Chue Hsing ◽  
Chia-Cheng Lee ◽  
Chin Lin ◽  
Jiann-Torng Chen ◽  
Yi-Hao Chen ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Diabetic Retinopathy ◽  
Kidney Disease ◽  
Renal Disease ◽  
Disease Progression ◽  
Renal Disease Progression ◽  
Hazard Ratios ◽  
Stage Renal Disease ◽  
End Stage

(1) Background: It has rarely been studied whether the severity of diabetic retinopathy (DR) could influence renal disease progression in end-stage renal disease (ESRD) and chronic kidney disease (CKD) in patients with type 2 diabetes. The aim of this study was to evaluate renal disease progression in ESRD and CKD according to DR severity in patients with type 2 diabetes. (2) Methods: We included 1329 patients and divided the cohort into two end-points. The first was to trace the incidence of ESRD in all enrolled participants and the other was to follow their progression to CKD. (3) Results: Significantly higher crude hazard ratios (HRs) of ESRD incidence in all enrolled participants were noted, and this ratio increased in a stepwise fashion. However, after adjustment, DR severity was not associated with ESRD events. Therefore, a subgroup of 841 patients without CKD was enrolled to track their progression to CKD. Compared with no diabetic retinopathy, the progression of CKD increased in a stepwise fashion, from mild nonproliferative diabetic retinopathy (NPDR) to moderate NPDR, to severe NPDR and to proliferative diabetic retinopathy (PDR), both in the crude and adjusted models. (4) Conclusions: The severity of retinopathy appeared to be associated with renal lesions and the development of CKD. Our findings suggest that the severity of DR is a risk factor for progression to CKD. Therefore, diabetic retinopathy is useful for prognosticating the clinical course of diabetic kidney disease.

Serum Magnesium, Blood Pressure, and Risk of Hypertension and Chronic Kidney Disease Progression in the CRIC Study

Hypertension ◽  
2021 ◽  
Author(s):  
Simon Correa ◽  
Xavier E. Guerra-Torres ◽  
Sushrut S. Waikar ◽  
Finnian R. Mc Causland
Keyword(s):  
Blood Pressure ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Disease Progression ◽  
Lower Risk ◽  
Serum Magnesium ◽  
Hazard Ratio ◽  
Adjusted Hazard Ratio ◽  
Ckd Progression ◽  
Baseline Serum

Magnesium is involved in the regulation of blood pressure (BP). Abnormalities in serum magnesium are common in chronic kidney disease (CKD), yet its association with the development of hypertension and CKD progression in patients with CKD is unclear. We analyzed data from 3866 participants from the CRIC Study (Chronic Renal Insufficiency Cohort). Linear regression assessed the association of serum magnesium with baseline systolic BP (SBP) and diastolic BP (DBP). Logistic regression explored the association of serum magnesium with various definitions of hypertension. Cox proportional hazards models explored assessed the risk of incident hypertension and CKD progression. Mean serum magnesium was 2.0 mEq/L (±0.3 mEq/L). Higher magnesium was associated with lower SBP (−3.4 mm Hg [95% CI, −5.8 to −1.0 per 1 mEq/L]) and lower DBP (−2.9 mm Hg [95% CI, −4.3 to −1.5 per 1 mEq/L]). Higher magnesium was associated with a lower risk of American Heart Association–defined hypertension (SBP≥130 mm Hg or DBP≥80 mm Hg) at baseline (adjusted hazard ratio, 0.65 [95% CI, 0.49–0.86 per 1 mEq/L]), a lower risk of suboptimally controlled BP (SBP≥120 mm Hg or DBP≥80 mm Hg; adjusted odds ratio, 0.58 [95% CI, 0.43–0.78 per 1 mEq/L]). In time-to-event analyses, higher baseline serum magnesium was associated with a nominally lower risk of incident CRIC-defined hypertension (adjusted hazard ratio, 0.77 [95% CI, 0.46–1.31 per 1 mEq/L]). Higher magnesium was associated with a significantly lower risk of CKD progression (adjusted hazard ratio, 0.68 [95% CI, 0.54–0.86 per 1 mEq/L]). In patients with CKD, higher serum magnesium is associated with lower SBP and DBP, and with a lower risk of hypertension and CKD progression. In patients with CKD, whether magnesium supplementation could optimize BP control and prevent disease progression deserves further investigation.

scholarly journals HMOX1 and Acute Kidney Injury in Sickle Cell Anemia

Blood ◽  
2017 ◽  
Vol 130 (Suppl_1) ◽  
pp. 686-686
Author(s):  
Santosh L. Saraf ◽  
Maya Viner ◽  
Ariel Rischall ◽  
Binal Shah ◽  
Xu Zhang ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Acute Kidney Injury ◽  
Risk Factor ◽  
Kidney Disease ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Kidney Injury ◽  
Ckd Progression ◽  
Kdigo Guidelines

Abstract Acute kidney injury (AKI) is associated with tubulointerstitial fibrosis and nephron loss and may lead to an increased risk for subsequently developing chronic kidney disease (CKD). In adults with sickle cell anemia (SCA), high rates of CKD have been consistently observed, although the incidence and risk factors for AKI are less clear. We evaluated the incidence of AKI, defined according to Kidney Disease Improving Global Outcomes (KDIGO) guidelines as a rise in serum creatinine by ≥0.3mg/dL within 48 hours or ≥1.5 times baseline within seven days, in 158 of 299 adult SCA patients enrolled in a longitudinal cohort from the University of Illinois at Chicago. These patients were selected based on the availability of genotyping for α-thalassemia, BCL11A rs1427407, APOL1 G1/G2, and the HMOX1 rs743811 and GT-repeat variants. Median values and interquartile range (IQR) are provided. With a median follow up time of 66 months (IQR, 51-74 months), 137 AKI events were observed in 63 (40%) SCA patients. AKI was most commonly observed in the following settings: acute chest syndrome (25%), an uncomplicated vaso-occlusive crisis (VOC)(24%), a VOC with pre-renal azotemia determined by a fractional excretion of sodium &lt;1% or BUN-to-creatinine ratio &gt;20:1 (14%), or a VOC with increased hemolysis, defined as an increase in serum LDH or indirect bilirubin level &gt;1.5 times over the baseline value at the time of enrollment (12%). Compared to individuals who did not develop AKI, SCA adults who developed an AKI event were older (AKI: median and IQR age of 35 (26-46) years, no AKI: 28 (23 - 26) years; P=0.01) and had a lower estimated glomerular filtration rate (eGFR) (AKI: median and IQR eGFR of 123 (88-150) mL/min/1.73m2, no AKI: 141 (118-154) mL/min/1.73m2; P=0.02) by the Kruskal-Wallis test at the time of enrollment. We evaluated the association of a panel of candidate gene variants with the risk of developing an AKI event. These included loci related to the degree of hemolysis (α-thalassemia, BCL11A rs1427407), to chronic kidney disease (APOL1 G1/G2 risk variants), and to heme metabolism (HMOX1) . Using a logistic regression model that adjusted for age and eGFR at the time of enrollment, the risk of an AKI event was associated with older age (10-year OR 2.6, 95%CI 1.4-4.8, P=0.002), HMOX1 rs743811 (OR 3.1, 95%CI 1.1-8.7, P=0.03), and long HMOX1 GT-repeats, defined as &gt;25 repeats (OR 2.5, 95%CI 1.01-6.1, P=0.04). Next, we assessed whether AKI is associated with a more rapid decline in eGFR and with CKD progression, defined as a 50% reduction in eGFR, on longitudinal follow up. Using a mixed effects model that adjusted for age and eGFR at the time of enrollment, the rate of eGFR decline was significantly greater in those with an AKI event (β = -0.51) vs. no AKI event (β = -0.16) (P=0.03). With a median follow up time of 66 months (IQR, 51-74 months), CKD progression was observed in 21% (13/61) of SCA patients with an AKI event versus 9% (8/88) without an AKI event. After adjusting for age and eGFR at the time of enrollment, the severity of an AKI event according to KDIGO guidelines (stage 1 if serum creatinine rises 1.5-1.9 times baseline, stage 2 if the rise is 2.0-2.9 times baseline, and stage 3 if the rise is ≥3 times baseline or ≥4.0 mg/dL or requires renal replacement therapy) was a risk factor for CKD progression (unadjusted HR 1.6, 95%CI 1.1-2.3, P=0.02; age- and eGFR-adjusted HR 1.6, 95%CI 1.1-2.5, P=0.03). In conclusion, AKI is commonly observed in adults with sickle cell anemia and is associated with increasing age and the HMOX1 GT-repeat and rs743811 polymorphisms. Furthermore, AKI may be associated with a steeper decline in kidney function and more severe AKI events may be a risk factor for subsequent CKD progression in SCA. Future studies understanding the mechanisms, consequences of AKI on long-term kidney function, and therapies to prevent AKI in SCA are warranted. Disclosures Gordeuk: Emmaus Life Sciences: Consultancy.

scholarly journals Association of Retinopathy with Chronic Kidney Disease in Diabetes Mellitus

2018 ◽  
Vol 8 (3) ◽  
pp. 210-214
Author(s):  
Rushda Sharmin Binte Rouf ◽  
SM Ashrafuzzaman ◽  
Zafar Ahmed Latif
Keyword(s):  
Diabetes Mellitus ◽  
Chronic Kidney Disease ◽  
Diabetic Retinopathy ◽  
Kidney Disease ◽  
Strong Association ◽  
Albumin Excretion Rate ◽  
Cross Sectional Study ◽  
Fundus Photography ◽  
Diabetic Patients ◽  
Cross Sectional

Background: Diabetic retinopathy (DR) and nephropathy are two major complications of diabetes mellitus carrying significant morbidity and mortality. In this study DR was investigated in different stages of chronic kidney disease (CKD) to find out possible association of these two devastating complications.Methods: This cross-sectional study was conducted in 150 diabetic patients having CKD in BIRDEM. CKD was defined as estimated glomerular filtration rate (eGFR) of <60ml/min/1.73m2and/or urinary albumin excretion rate (UAER) >30 mg/day in at least two occasions in 3 months apart. Retinopathy was assessed by direct fundoscopic examination and confirmed by color fundus photography. Severe DR (SDR) included proliferative diabetic retinopathy, severe non-proliferative DR and maculopathy; whereas microaneurysm regarded as non-severe retinopathy.Results: Majority (68%) of the respondents had some form of retinopathy (38.35% SDR and 29.65% nonsevere). There was strong association between different levels of albuminuria (UAER) and DR (p<0.0001). On the contrary DR did not correspond with stages of CKD (P=0.349). Hypertension (79.5%) and dyslipidaemia (59%) were common co-morbidities.Conclusion: This study concluded that DR prevalence was more in nephropathy along with significant association with UAER. Whereas different stages of CKD was not associated with stages of DR . This finding focused the necessity of regular retinal examination irrespective of the stage of renal involvement.Birdem Med J 2018; 8(3): 210-214

scholarly journals Critical factors leading to wound complications in amputated patients: low hematocrit levels

2020 ◽  
Vol 8 (1) ◽  
pp. 39
Author(s):  
Sinan Omeroglu ◽  
Ibrahim Demir ◽  
Metin O. Beyaz
Keyword(s):  
Chronic Kidney Disease ◽  
Risk Factor ◽  
Kidney Disease ◽  
Lower Extremity ◽  
Wound Complications ◽  
Critical Factors ◽  
Peripheral Artery ◽  
Diabetic Foot Infection ◽  
Patients With Diabetes ◽  
Artery Disease

Background: Patients with diabetes-induced lower extremity infection and gangrene suffer from post-amputation wound complications. The aim of this report is to identify critical factors leading to wound complications in amputated patients.Methods: 50 patients with ipsilateral transmetatarsal (TMA) or finger amputation treated in Istanbul University Medical Faculty between 2001 and 2013 were retrospectively reviewed. Amputations were caused by diabetic foot infection. None of the patients had peripheral artery disease (ABPI>1.1).Results: In 9 (18%) patients, revision was required despite appropriate antibiotherapy after amputation. 7 (78%) of these patients were women, 8 (89%) were smokers and hematocrit levels were below 25% in all of them. 4 of the 5 patients (80%) with chronic kidney disease were among the patients in need of revision.Conclusion: The risk of wound complications after amputation is high. These complications increase morbidity and treatment costs. This study showed that low hematocrit value is a risk factor for the development of wound infection after amputation.

scholarly journals Hyperuricemia and Progression of Chronic Kidney Disease: A Review from Physiology and Pathogenesis to the Role of Urate-Lowering Therapy

Diagnostics ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1674
Author(s):  
Tao Han Lee ◽  
Jia-Jin Chen ◽  
Chao-Yi Wu ◽  
Chih-Wei Yang ◽  
Huang-Yu Yang
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Renal Disease ◽  
Disease Progression ◽  
Reciprocal Relationship ◽  
Current Evidence ◽  
Renal Disease Progression ◽  
Lowering Therapy ◽  
The Relationship

The relationship between hyperuricemia, gout, and renal disease has been investigated for several years. From the beginning, kidney disease has been considered a complication of gout; however, the viewpoints changed, claiming that hypertension and elevated uric acid (UA) levels are caused by decreased urate excretion in patients with renal impairment. To date, several examples of evidence support the role of hyperuricemia in cardiovascular or renal diseases. Several mechanisms have been identified that explain the relationship between hyperuricemia and chronic kidney disease, including the crystal effect, renin–angiotensin–aldosterone system activation, nitric oxide synthesis inhibition, and intracellular oxidative stress stimulation, and urate-lowering therapy (ULT) has been proven to reduce renal disease progression in the past few years. In this comprehensive review, the source and physiology of UA are introduced, and the mechanisms that explain the reciprocal relationship between hyperuricemia and kidney disease are reviewed. Lastly, current evidence supporting the use of ULT to postpone renal disease progression in patients with hyperuricemia and gout are summarized.

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