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Background@#Imbalance of T helper (Th) 1/2 cells has been shown to contribute to the development of immunoglobulin A nephropathy (IgAN). To address the inconsistent results on the role of Th1/Th2 polarization, we evaluated the levels of Th1/Th2 cytokines in various samples from patients with IgAN. @*Methods@#Thirty-one patients with biopsy-proven IgAN (age, 34.48 ± 12.10 years) and 25 healthy controls (age, 44.84 ± 13.72 years) were enrolled. We evaluated the relationship between the levels of Th1/Th2 cytokines and the response to glucocorticoid treatment. @*Results@#The levels of serum interferon-gamma (IFNγ) and urinary monocyte chemoattractant peptide (MCP)-1 were higher in the IgAN group than in the control group. The levels of MCP-1 in urine and secreted by peripheral blood mononuclear cells (PBMCs) were significantly different among three groups categorized based on daily proteinuria. The level of urinary MCP-1 was significantly correlated with proteinuria. The levels of urinary MCP-1, serum interleukin (IL)-4, IFNγ, and IL-2 secreted by PBMCs and intrarenal IL-1 messenger RNA (mRNA) were significantly correlated with the ratio of proteinuria at 6 months to baseline proteinuria in patients undergoing glucocorticoid treatment. MCP-1 mRNA and protein levels were significantly upregulated in mesangial cells stimulated with IFNγ among representative Th1/Th2 cytokines. @*Conclusion@#IFNγ was shown to be a key cytokine in the pathogenic processes underlying IgAN, and its upregulation induced an increase in urinary MCP-1 production. These findings suggest that Th1 cytokines may play an important role in the development of IgAN.
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Background@#Imbalance of T helper (Th) 1/2 cells has been shown to contribute to the development of immunoglobulin A nephropathy (IgAN). To address the inconsistent results on the role of Th1/Th2 polarization, we evaluated the levels of Th1/Th2 cytokines in various samples from patients with IgAN. @*Methods@#Thirty-one patients with biopsy-proven IgAN (age, 34.48 ± 12.10 years) and 25 healthy controls (age, 44.84 ± 13.72 years) were enrolled. We evaluated the relationship between the levels of Th1/Th2 cytokines and the response to glucocorticoid treatment. @*Results@#The levels of serum interferon-gamma (IFNγ) and urinary monocyte chemoattractant peptide (MCP)-1 were higher in the IgAN group than in the control group. The levels of MCP-1 in urine and secreted by peripheral blood mononuclear cells (PBMCs) were significantly different among three groups categorized based on daily proteinuria. The level of urinary MCP-1 was significantly correlated with proteinuria. The levels of urinary MCP-1, serum interleukin (IL)-4, IFNγ, and IL-2 secreted by PBMCs and intrarenal IL-1 messenger RNA (mRNA) were significantly correlated with the ratio of proteinuria at 6 months to baseline proteinuria in patients undergoing glucocorticoid treatment. MCP-1 mRNA and protein levels were significantly upregulated in mesangial cells stimulated with IFNγ among representative Th1/Th2 cytokines. @*Conclusion@#IFNγ was shown to be a key cytokine in the pathogenic processes underlying IgAN, and its upregulation induced an increase in urinary MCP-1 production. These findings suggest that Th1 cytokines may play an important role in the development of IgAN.
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BACKGROUND/AIMS: Recent studies have suggested an important role of adipokines in the development of insulin resistance and diabetes mellitus. The clinical relevance of adipokines on long-term outcomes in patients with diabetes and chronic kidney disease is uncertain. The purpose of this study was to identify a predictable factor in patients with long-term diabetic complications. METHODS: A total of 161 diabetic individuals were followed-up from 2002 to 2013. Circulating plasma levels of adiponectin, glypican-4, irisin, visfatin, and visit-to-visit glucose variability were measured in diabetic patients. Associations among adipokines and variable metabolic parameters and microvascular, and macrovascular complications were evaluated. RESULTS: Plasma adiponectin and glypican-4 levels were significantly increased in patients with renal insufficiency. These adipokines were negatively associated with estimated glomerular filtration rate and positively associated with urinary albumin excretion. The relative risk of renal progression to dialysis increased independently with increasing level of adiponectin. Glypican-4 and visfatin were not predictive of any microvascular or macrovascular complications. Glucose variability increased the risk of diabetic nephropathy and cerebrovascular complications. CONCLUSIONS: Adiponectin and glypican-4 were associated with renal function and might be able to predict renal progression. Glucose variability was a predictable factor for diabetic nephropathy and cerebrovascular complications.
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Humanos , Adipoquinas , Adiponectina , Complicaciones de la Diabetes , Diabetes Mellitus , Nefropatías Diabéticas , Diálisis , Tasa de Filtración Glomerular , Glucosa , Glipicanos , Resistencia a la Insulina , Nicotinamida Fosforribosiltransferasa , Plasma , Insuficiencia Renal , Insuficiencia Renal CrónicaRESUMEN
Diabetes mellitus (DM) is a worldwide public issue that has increased the risks for cardiovascular morbidity and mortality. It is the most common cause of chronic kidney diseases, which necessitates renal replacement therapy. Diabetic nephropathy is one of the long-term complications of DM. Renal replacement therapy has reduced the acute complications of renal dysfunction and prolonged patient survival. However, quality of life should be considered from the patient's viewpoint. Although new treatments have been developed via experimental studies, many trials failed to show beneficial effects in clinical practice in terms of long-term complications. Since there are many limitations to large clinical studies, we hope that improved approaches for individual patients will lead to new methods to increase the effectiveness of agents though big-data analysis in the future.
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Humanos , Diabetes Mellitus , Nefropatías Diabéticas , Esperanza , Mortalidad , Calidad de Vida , Insuficiencia Renal Crónica , Terapia de Reemplazo RenalRESUMEN
The concentration of adenosine in the normal kidney increases markedly during renal hypoxia, ischemia, and inflammation. A recent study reported that an A3 adenosine receptor (A3AR) antagonist attenuated the progression of renal fibrosis. The adriamycin (ADX)-induced nephropathy model induces podocyte injury, which results in severe proteinuria and progressive glomerulosclerosis. In this study, we investigated the preventive effect of a highly selective A3AR antagonist (LJ1888) in ADX-induced nephropathy. Three groups of six-week-old Balb/c mice were treated with ADX (11 mg/kg) for four weeks and LJ1888 (10 mg/kg) for two weeks as following: 1) control; 2) ADX; and 3) ADX + LJ1888. ADX treatment decreased body weight without a change in water and food intake, but this was ameliorated by LJ1888 treatment. Interestingly, LJ1888 lowered plasma creatinine level, proteinuria, and albuminuria, which had increased during ADX treatment. Furthermore, LJ1888 inhibited urinary nephrin excretion as a podocyte injury marker, and urine 8-isoprostane and kidney lipid peroxide concentration, which are markers of oxidative stress, increased after injection of ADX. ADX also induced the activation of proinflammatory and profibrotic molecules such as TGF-β1, MCP-1, PAI-1, type IV collagen, NF-κB, NOX4, TLR4, TNFα, IL-1β, and IFN-γ, but they were remarkably suppressed after LJ1888 treatment. In conclusion, our results suggest that LJ1888 has a renoprotective effect in ADX-induced nephropathy, which might be associated with podocyte injury through oxidative stress. Therefore, LJ1888, a selective A3AR antagonist, could be considered as a potential therapeutic agent in renal glomerular diseases which include podocyte injury and proteinuria.
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Animales , Ratones , Adenosina , Albuminuria , Hipoxia , Peso Corporal , Colágeno Tipo IV , Creatinina , Doxorrubicina , Ingestión de Alimentos , Fibrosis , Inflamación , Isquemia , Riñón , Estrés Oxidativo , Plasma , Inhibidor 1 de Activador Plasminogénico , Podocitos , Proteinuria , Receptores Purinérgicos P1 , AguaRESUMEN
The authors apologize for a wrong unit in the table 1.
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Hepatitis E has traditionally been considered an endemic disease of developing countries. It generally spreads through contaminated water. However, seroprevalence studies have shown that hepatitis E virus (HEV) infections are not uncommon in industrialized countries. In addition, the number of autochthonous hepatitis E cases in these countries is increasing. Most HEV infections in developed countries can be traced to the ingestion of contaminated raw or undercooked pork meat or sausages. Several animal species, including pigs, are known reservoirs of HEV that transmit the virus to humans. HEVs are now recognized as an emerging zoonotic agent. In this review, we describe the general characteristics of HEVs isolated from humans and animals, the risk factors for human HEV infection, and the current status of human vaccine development.
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Animales , Humanos , Países Desarrollados , Países en Desarrollo , Ingestión de Alimentos , Enfermedades Endémicas , Virus de la Hepatitis E , Hepatitis E , Hepatitis , Carne , Factores de Riesgo , Estudios Seroepidemiológicos , Porcinos , Vacunas , Virus , Contaminación del Agua , ZoonosisRESUMEN
BACKGROUND: In many countries, nephrologists follow clinical practice guidelines for mineral bone disorders to control secondary hyperparathyroidism (SHPT) associated with abnormal serum calcium (Ca) and phosphorus (P) levels in patients undergoing maintenance hemodialysis (MHD). The Kidney Disease Outcomes Quality Initiative (KDOQI) Guidelines have long been used in Korea, and this study was undertaken to investigate the current status of serum Ca and P control in MHD patients. METHODS: Data were collected from a total of 1,018 patients undergoing MHD without intercurrent illness, in 17 hemodialysis centers throughout the country. Serum levels of Ca, P, and intact parathyroid hormone (iPTH) were measured over 1 year, and the average values were retrospectively analyzed. RESULTS: Serum levels of Ca, P, and the CaxP product were 9.1+/-0.7mg/dL, 5.3+/-1.4mg/dL, and 48.0+/-13.6mg2/dL2, respectively. However, the percentages of patients with Ca, P, and Ca x P product levels within the KDOQI guideline ranges were 58.7%, 51.0%, and 70.7%, respectively. Of the 1,018 patients, 270 (26.5%) had iPTH >300pg/mL (uncontrolled SHPT), whereas 435 patients (42.7%) showed iPTH <150pg/mL. Patients with uncontrolled SHPT had significantly higher values of serum Ca, P, and CaxP product than those with iPTH < or =300pg/mL. CONCLUSION: Despite the current clinical practice guidelines, SHPT seems to be inadequately controlled in many MHD patients. Uncontrolled SHPT was associated with higher levels of serum Ca, P, and Ca x P product, suggestive of the importance of SHPT management.
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Humanos , Calcio , Hiperparatiroidismo Secundario , Enfermedades Renales , Corea (Geográfico) , Hormona Paratiroidea , Fósforo , Diálisis Renal , Estudios RetrospectivosRESUMEN
BACKGROUND: Obesity-related metabolic disorders are closely associated with inflammation induced by innate immunity. Toll-like receptors (TLRs) play a pivotal role in the innate immune system by activating proinflammatory signaling pathways. GIT27 (4,5-dihydro-3-phenyl-5-isoxasole acetic acid) is an active immunomodulatory agent that primarily targets macrophages and inhibits secretion of tumor necrosis factor alpha [as well as interleukin (IL)-1beta, IL-10, and interferon gamma]. However, the effect of TLR antagonist on kidney diseases has rarely been reported. We investigated whether the TLR antagonist GIT27 has beneficial effects on the progression of kidney disease in obese mice on a high-fat diet (HFD). METHODS: Six-week-old male C57BL/6 mice were divided into three groups: mice fed with normal chow diet (N=4); mice fed with a HFD (60% of total calories from fat, 5.5% from soybean oil, and 54.5% from lard, N=4); and GIT27-treated mice fed with a HFD (N=7). RESULTS: Glucose intolerance, oxidative stress, and lipid abnormalities in HFD mice were improved by GIT27 treatment. In addition, GIT27 treatment decreased the urinary excretion of albumin and protein in obesity-related kidney disease, urinary oxidative stress markers, and inflammatory cytokine levels. This treatment inhibited the expression of proinflammatory cytokines in the kidneys and adipose tissue, and improved extracellular matrix expansion and tubulointerstitial fibrosis in obesity-related kidney disease. CONCLUSION: TLR inhibition by administering GIT27 improved metabolic parameters. GIT27 ameliorates abnormalities of lipid metabolism and may have renoprotective effects on obesity-related kidney disease through its anti-inflammatory properties.
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Animales , Humanos , Masculino , Ratones , Ácido Acético , Tejido Adiposo , Citocinas , Dieta , Dieta Alta en Grasa , Matriz Extracelular , Fibrosis , Intolerancia a la Glucosa , Sistema Inmunológico , Inmunidad Innata , Inflamación , Interferones , Interleucina-10 , Interleucinas , Riñón , Enfermedades Renales , Metabolismo de los Lípidos , Macrófagos , Ratones Obesos , Obesidad , Estrés Oxidativo , Aceite de Soja , Receptores Toll-Like , Factor de Necrosis Tumoral alfaRESUMEN
Aldosterone-producing adrenal adenoma can induce various clinical manifestations as a result of chronic exposure to aldosterone. We report a rare case of a 37-year-old man who complained of general weakness and polyuria. He was diagnosed with aldosterone-producing adrenal adenoma and nephrogenic diabetes insipidus. Aldosterone enhances the secretion of potassium in the collecting duct, which can lead to hypokalemia. By contrast, nephrogenic diabetes insipidus, which manifests as polyuria and polydipsia, can occur in several clinical conditions such as acquired tubular disease and those attributed to toxins and congenital causes. Among them, hypokalemia can also damage tubular structures in response to vasopressin. The patient's urine output was > 3 L/d and was diluted. Owing to the ineffectiveness of vasopressin, we eventually made a diagnosis of nephrogenic diabetes insipidus. Laparoscopic adrenalectomy and intraoperative kidney biopsy were subsequently performed. The pathologic finding of kidney biopsy revealed a decrease in aquaporin-2 on immunohistochemical stain.
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Adulto , Humanos , Adenoma , Adrenalectomía , Aldosterona , Acuaporina 2 , Biopsia , Diabetes Insípida , Diabetes Insípida Nefrogénica , Diagnóstico , Hiperaldosteronismo , Hipopotasemia , Riñón , Polidipsia , Poliuria , Potasio , VasopresinasRESUMEN
Virus-like particles (VLPs) composed of the truncated capsid protein of swine hepatitis E virus (HEV) were developed and immune responses of mice immunized with the VLPs were evaluated. IgG titers specific for the capsid protein of swine HEV were significantly higher for all groups of mice immunized with the VLPs than those of the negative control mice. Splenocytes from mice immunized with the VLPs also produced significantly greater quantities of interferon (IFN)-gamma than interleukin (IL)-4 and IL-10. These newly developed swine HEV VLPs have the capacity to induce antigen-specific antibody and IFN-gamma production in immunized mice.
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Animales , Femenino , Ratones , Anticuerpos Antivirales/sangre , Proteínas de la Cápside/inmunología , Hepatitis E/inmunología , Virus de la Hepatitis E/inmunología , Inmunización/veterinaria , Interferón gamma/sangre , Ratones Endogámicos BALB C , Porcinos , Enfermedades de los Porcinos/inmunología , Vacunas de Partículas Similares a Virus/inmunología , Vacunas contra Hepatitis Viral/inmunologíaRESUMEN
With excess nutrition, the burden of obesity is a growing problem worldwide. The imbalance between energy intake and expenditure leads to variable disorders as all major risk factors for cardiovascular disease. There are many hypothetical mechanisms to explain obesity-associated hypertension. Activation of the RAAS is a key contributing factor in obesity. Particularly, the RAAS in adipose tissue plays a crucial role in adipose tissue dysfunction and obesity-induced inflammation. The phenotypic changes of adipocytes occur into hypertrophy and an inflammatory response in an autocrine and paracrine manner to impair adipocyte function, including insulin signaling pathway. Adipose tissue produce and secretes several molecules such as leptin, resistin, adiponectin, and visfatin, as well as cytokines such as TNF-alpha, IL-6, MCP-1, and IL-1. These adipokines are stimulated via the intracellular signaling pathways that regulate inflammation of adipose tissue. Inflammation and oxidative stress in adipose tissue are important to interact with the microvascular endothelium in the mechanisms of obesity-associated hypertension. Increased microvascular resistance raises blood pressure. Therefore, a regulatory link between microvascular and perivascular adipose tissue inflammation and adipokine synthesis are provided to explain the mechanism of obesity-associated hypertension.
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Adipocitos , Adipoquinas , Adiponectina , Tejido Adiposo , Presión Sanguínea , Enfermedades Cardiovasculares , Citocinas , Endotelio , Ingestión de Energía , Gastos en Salud , Hipertensión , Hipertrofia , Inflamación , Insulina , Resistencia a la Insulina , Interleucina-1 , Interleucina-6 , Leptina , Nicotinamida Fosforribosiltransferasa , Obesidad , Estrés Oxidativo , Resistina , Factores de Riesgo , Factor de Necrosis Tumoral alfaRESUMEN
Pseudomyxoma peritonei is a rare clinical condition that causes the accumulation of mucinous ascites, which gradually results in the compression of intra-abdominal organs. Most published reports of pseudomyxoma peritonei concern the mass effect of the resulting ascites, which presents as abdominal pain or intestinal ileus in severe cases. However, few reports of renal complications of the disease have been published. Here, we present a case of oliguric acute kidney injury caused by external compression by pseudomyxoma peritonei. After decompression with external drainage, the patient's renal function rapidly improved.
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Dolor Abdominal , Lesión Renal Aguda , Ascitis , Descompresión , Drenaje , Ileus , Mucinas , Oliguria , Seudomixoma PeritonealRESUMEN
Pseudomyxoma peritonei is a rare clinical condition that causes the accumulation of mucinous ascites, which gradually results in the compression of intra-abdominal organs. Most published reports of pseudomyxoma peritonei concern the mass effect of the resulting ascites, which presents as abdominal pain or intestinal ileus in severe cases. However, few reports of renal complications of the disease have been published. Here, we present a case of oliguric acute kidney injury caused by external compression by pseudomyxoma peritonei. After decompression with external drainage, the patient's renal function rapidly improved.
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Dolor Abdominal , Lesión Renal Aguda , Ascitis , Descompresión , Drenaje , Ileus , Mucinas , Oliguria , Seudomixoma PeritonealRESUMEN
BACKGROUND: Leptin is an adipokine that is recently reported to be a biomarker of systemic inflammation. Although atherosclerosis causes cardiovascular diseases, it is not clear whether leptin contributes to the acceleration of this process. In this study, we investigated whether alterations of plasma leptin levels were related to diabetic nephropathy and systemic inflammation. In addition, we examined the physiologic action of leptin in cultured vascular smooth muscle cells (VSMCs). METHODS: A total of 126 type 2 diabetic participants and 37 healthy controls were studied. The diabetic participants were divided into three groups according to stage of nephropathy. We investigated whether leptin induced monocyte chemotactic peptide-1 (MCP-1) synthesis through the mitogen-activated protein kinase (MAPK) pathway using cultured VSMCs. RESULTS: Plasma leptin concentrations were significantly higher in the diabetic group than in the controls. Plasma leptin levels were positively correlated with body mass index, fasting and postprandial blood glucose, hemoglobin A1c, total cholesterol, urinary albumin excretion, high-sensitivity C-reactive protein (hsCRP), and MCP-1 plasma levels, and negatively correlated with creatinine clearance values. In cultured VSMCs, leptin increased MCP-1 production in a dose-dependent manner, and this stimulating effect of leptin on MCP-1 expression was reversed by the MAPK (MEK) inhibitor PD98059. In addition, leptin stimulated the phosphorylation of MEK, extracellular signal-regulated kinase, and E26-like transcription factor, which are components of the MAPK pathway. CONCLUSION: Overall, these findings suggest that activation of leptin synthesis may promote MCP-1 activation in a diabetic environment via the MAPK pathway in VSMCs and that it possibly contributes to the acceleration of atherosclerosis.
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Humanos , Aceleración , Adipoquinas , Aterosclerosis , Glucemia , Índice de Masa Corporal , Proteína C-Reactiva , Enfermedades Cardiovasculares , Colesterol , Creatinina , Diabetes Mellitus , Nefropatías Diabéticas , Ayuno , Flavonoides , Hemoglobinas , Inflamación , Leptina , Monocitos , Músculo Liso Vascular , Fosforilación , Fosfotransferasas , Plasma , Proteínas Quinasas , Factores de TranscripciónRESUMEN
As a result of the energy overload in obesity, insulin resistance, type 2 diabetes, dyslipidemia, hypertension, and atherosclerosis develop, which together comprise the metabolic syndrome. Although the kidney becomes a victim of hyperglycemia in diabetes mellitus, recent work has shown that the abnormalities of lipid and glucose metabolism in the kidney are similarly important to those in adipose tissue. Interestingly, obesity triggers the release of adipokines such as leptin, resistin, and visfatin, and these can then be associated with the progression of diabetic nephropathy and other vascular complications. These adipokines, which are also synthesized in the kidney, appear to have an important role in renal injury associated with insulin resistance. Our studies found that visfatin is not only a surrogate marker of systemic inflammation in type 2 diabetic patients but is also up-regulated in diabetic kidney through the uptake of glucose into renal cells, which leads to the activation of the intracellular insulin signaling pathway and pro-inflammatory mechanisms. However, we also observed a beneficial effect of visfatin administration to type 2 diabetic mice. Visfatin injection improved diabetic nephropathy in vivo, in contrast to our previous in vitro study of cultured renal mesangial cells. These results suggest the possibility of multiple cross-talk between adipose tissue and kidney in the metabolic syndrome, particularly in diabetic nephropathy. Further study should be undertaken to understand the role of adipose tissue and kidney as major organs in the metabolic syndrome.
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Animales , Humanos , Ratones , Adipoquinas , Tejido Adiposo , Aterosclerosis , Biomarcadores , Diabetes Mellitus , Nefropatías Diabéticas , Dislipidemias , Glucosa , Hiperglucemia , Hipertensión , Inflamación , Insulina , Resistencia a la Insulina , Riñón , Leptina , Células Mesangiales , Nicotinamida Fosforribosiltransferasa , Obesidad , ResistinaRESUMEN
As a result of the energy overload in obesity, insulin resistance, type 2 diabetes, dyslipidemia, hypertension, and atherosclerosis develop, which together comprise the metabolic syndrome. Although the kidney becomes a victim of hyperglycemia in diabetes mellitus, recent work has shown that the abnormalities of lipid and glucose metabolism in the kidney are similarly important to those in adipose tissue. Interestingly, obesity triggers the release of adipokines such as leptin, resistin, and visfatin, and these can then be associated with the progression of diabetic nephropathy and other vascular complications. These adipokines, which are also synthesized in the kidney, appear to have an important role in renal injury associated with insulin resistance. Our studies found that visfatin is not only a surrogate marker of systemic inflammation in type 2 diabetic patients but is also up-regulated in diabetic kidney through the uptake of glucose into renal cells, which leads to the activation of the intracellular insulin signaling pathway and pro-inflammatory mechanisms. However, we also observed a beneficial effect of visfatin administration to type 2 diabetic mice. Visfatin injection improved diabetic nephropathy in vivo, in contrast to our previous in vitro study of cultured renal mesangial cells. These results suggest the possibility of multiple cross-talk between adipose tissue and kidney in the metabolic syndrome, particularly in diabetic nephropathy. Further study should be undertaken to understand the role of adipose tissue and kidney as major organs in the metabolic syndrome.
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Animales , Humanos , Ratones , Adipoquinas , Tejido Adiposo , Aterosclerosis , Biomarcadores , Diabetes Mellitus , Nefropatías Diabéticas , Dislipidemias , Glucosa , Hiperglucemia , Hipertensión , Inflamación , Insulina , Resistencia a la Insulina , Riñón , Leptina , Células Mesangiales , Nicotinamida Fosforribosiltransferasa , Obesidad , ResistinaRESUMEN
Systemic capillary leak syndrome (SCLS) is a rare devastating condition that is caused by unexplained marked capillary hyperpermeability, resulting in hypovolemic shock, hemoconcentration, and hypoproteinemia. Most patients have prodromal symptoms such as non-specific gastrointestinal symptoms, myalgia, or dizziness. In the current case, we observed the patient with recurrent SCLS show perivascular lymphocytic infiltration on skin biopsy and eosinophilic infiltrates on random biopsies from duodenum to colon. This finding might be due to distinct eosinophilic enterocolitis or secondary to SCLS. However, there has been rare data for the prevention of the recurrent attack of SCLS, although the mortality is high. Therefore, we report a case of frequently relapsing SCLS responding to the corticosteroid therapy.
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Humanos , Biopsia , Capilares , Síndrome de Fuga Capilar , Colon , Mareo , Duodeno , Enterocolitis , Eosinófilos , Hipoproteinemia , Síntomas Prodrómicos , Choque , PielRESUMEN
Diabetic kidney disease, as one of the important diabetic complication, developed in 20% to 40% of patients with diabetes and is now the most common cause of end-stage renal disease. Although it has been recommended that annual screening of renal function including microalbuminuria in diabetic patients, many patients are currently under-diagnosed state. Early recognition of diabetic renal complication has a pivotal role in the management of diabetic patients for improvement of patient's prognosis. The detection of microalbuminuria is particularly important as a marker of early diabetic kidney disease, and is related with an elevated cardiovascular complications. Like other chronic renal disease, diabetic kidney disease has characteristic to show a progressive decline in renal function, but significantly increased cardiovascular mortality even in the early stage of diabetic kidney disease. Therefore, more aggressive trials for detection of the presence of diabetic kidney disease and comorbid cardiovascular disease and management for cardiovascular risk factor reduction and adequate therapeutic intervention for slowing the progression of renal disease is essential to proper management for patients with diabetic kidney disease.