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1.
J Clin Nurs ; 32(23-24): 8043-8053, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37668267

RESUMO

AIMS: To examine the relationship among eHealth literacy, empowerment and self-management and the mediating effects of empowerment in diabetic kidney disease (DKD) patients in the eHealthcare context. BACKGROUND: Self-management is an essential aspect of healthcare in delaying disease progression for DKD. In the eHealthcare era, health services providing self-management are transforming. The ability and confidence of patients to use eHealth services is a critical issue that impacts the effectiveness of self-management, but little is known about the role of eHealth literacy and empowerment in self-management. DESIGN: A cross-sectional study guided by the STROBE. METHODS: Overall, 127 Taiwanese patients were enrolled using convenience sampling. Data collection used structured questionnaires and chart reviews. Multiple regression was used to infer self-management predictors, and SPSS PROCESS macro and bootstrapping verified the mediating effects. RESULTS: Empowerment and eHealth literacy both showed significant positive correlations with self-management. Empowerment was the main predictor of self-management and had a complete mediating effect between eHealth literacy and self-management. CONCLUSION: Increasing patients' eHealth literacy can improve empowerment and prevent health inequality issues. Healthcare providers should consider improving patients' eHealth literacy to enhance their self-management. RELEVANCE TO CLINICAL PRACTICE: Healthcare service systems need to create user-friendly eHealthcare environments, and healthcare professionals can provide multifaceted instructions that fit patients' eHealth literacy levels to enhance their motivation and confidence in disease care, thus cultivating positive self-management behaviours. IMPACT: The popularity of eHealthcare services aimed at promoting self-management behaviours is increasing. However, the level of eHealth literacy is an essential factor that affects the effectiveness of self-management in the healthcare environment. In addition, empowerment is a major critical influence factor of self-management and a completely mediating variable between self-management and eHealth literacy. Consequently, healthcare providers should consider promoting patients' eHealth literacy to empower people using eHealthcare services for implementing self-management. REPORTING METHOD: The Strengthening the Reporting of Observational Studies in cross-sectional studies (STROBE) checklist was used to ensure comprehensive reporting. PATIENT OR PUBLIC CONTRIBUTION: Patients were diagnosed with DKD in the study hospital. Physicians and case managers transferred patients to research assistants who screened them for the inclusion criteria and invited them to participate in this study if they met the requirements. After participants signed informed consent, the research nurse encouraged participants to respond to the research questionnaire face to face.


Assuntos
Letramento em Saúde , Autogestão , Telemedicina , Humanos , Estudos Transversais , Letramento em Saúde/métodos , Disparidades nos Níveis de Saúde , Inquéritos e Questionários , Telemedicina/métodos
2.
Int J Mol Sci ; 24(13)2023 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-37446114

RESUMO

Circulating uremic toxin indoxyl sulfate (IS), endothelial cell (EC) dysfunction, and decreased nitric oxide (NO) bioavailability are found in chronic kidney disease patients. NO nitrosylates/denitrosylates a specific protein's cysteine residue(s), forming S-nitrosothios (SNOs), and the decreased NO bioavailability could interfere with NO-mediated signaling events. We were interested in investigating the underlying mechanism(s) of the reduced NO and how it would regulate the S-nitrosylation of tissue transglutaminase (TG2) and its substrates on glycolytic, redox and inflammatory responses in normal and IS-induced EC injury. TG2, a therapeutic target for fibrosis, has a Ca2+-dependent transamidase (TGase) that is modulated by S-nitrosylation. We found IS increased oxidative stress, reduced NADPH and GSH levels, and uncoupled eNOS to generate NO. Immunoblot analysis demonstrated the upregulation of an angiotensin-converting enzyme (ACE) and significant downregulation of the beneficial ACE2 isoform that could contribute to oxidative stress in IS-induced injury. An in situ TGase assay demonstrated IS-activated TG2/TGase aminylated eNOS, NFkB, IkBα, PKM2, G6PD, GAPDH, and fibronectin (FN), leading to caspases activation. Except for FN, TGase substrates were all differentially S-nitrosylated either with or without IS but were denitrosylated in the presence of a specific, irreversible TG2/TGase inhibitor ZDON, suggesting ZDON-bound TG2 was not effectively transnitrosylating to TG2/TGase substrates. The data suggest novel roles of TG2 in the aminylation of its substrates and could also potentially function as a Cys-to-Cys S-nitrosylase to exert NO's bioactivity to its substrates and modulate glycolysis, redox, and inflammation in normal and IS-induced EC injury.


Assuntos
Indicã , Proteína 2 Glutamina gama-Glutamiltransferase , Humanos , Células Endoteliais , Estresse Oxidativo , Glicólise , Sulfatos
3.
Biomedicines ; 11(5)2023 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-37238983

RESUMO

Studies have demonstrated that a low-protein diet supplemented with ketoanalogs (KAs) could significantly retard progression of renal function in patients with chronic kidney disease (CKD) stages 3-5. However, its effects on endothelial function and serum levels of protein-bound uremic toxins remain elusive. Therefore, this study explored whether a low-protein diet (LPD) supplemented with KAs affects kidney function, endothelial function, and serum uremic toxin levels in a CKD-based cohort. In this retrospective cohort, we enrolled 22 stable CKD stage 3b-4 patients on LPD (0.6-0.8 g/day). Patients were categorized into control (LPD only) and study groups (LPD + KAs 6 tab/day). Serum biochemistry, total/free indoxyl sulfate (TIS/FIS), total/free p-cresyl sulfate (TPCS/FPCS), and flow-mediated dilation (FMD) were measured before and after 6 months of KA supplementation. Before the trial, there were no significant differences in kidney function, FMD, or uremic toxin levels between the control and study groups. When compared with the control group, the paired t-test showed a significant decrease in TIS and FIS (all p < 0.05) and a significant increase in FMD, eGFR, and bicarbonate (all p < 0.05). In multivariate regression analysis, an increase in FMD (p < 0.001) and a decrease in FPCS (p = 0.012) and TIS (p < 0.001) remained persistent findings when adjusted for age, systolic blood pressure (SBP), sodium, albumin, and diastolic blood pressure (DBP). LPD supplemented with KAs significantly preserves kidney function and provides additional benefits on endothelial function and protein-bound uremic toxins in patients with CKD.

4.
J Ren Nutr ; 33(6): 731-739, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37120127

RESUMO

OBJECTIVE: Although unhealthy diets exacerbate nutritional and metabolic derangements in patients with end-stage kidney disease (ESKD), how therapeutic diets that possess a variety of different dietary strategies acutely modify diverse biochemical parameters related to cardiovascular disease remains underexplored. METHODS: Thirty-three adults with end-stage kidney disease undergoing thrice-weekly hemodialysis participated in a randomized crossover trial comparing a therapeutic diet with their usual diets for 7 days, separated by a 4-week washout period. The therapeutic diet was characterized by adequate calorie and protein amounts, natural food ingredients with a low phosphorus-to-protein ratio, higher portions of plant-based food, and high fiber content. The primary outcome measure was the mean difference in the change-from-baseline intact fibroblast growth factor 23 (FGF23) level between the 2 diets. The other outcomes of interest included changes in mineral parameters, uremic toxins, and high-sensitivity C-reactive protein (hs-CRP) levels. RESULTS: Compared with the usual diet, the therapeutic diet lowered intact FGF23 levels (P = .001), decreased serum phosphate levels (P < .001), reduced intact parathyroid hormone (PTH) levels (P = .003), lowered C-terminal FGF23 levels (P = .03), increased serum calcium levels (P = .01), and tended to lower total indoxyl sulfate levels (P = .07) but had no significant effect on hs-CRP levels. Among these changes, reduction in serum phosphate level achieved in 2 days, modifications of intact PTH and calcium levels in 5 days, and reductions in intact and C-terminal FGF23 levels in 7 days of therapeutic diet intervention. CONCLUSION: Within the 1-week intervention period, the dialysis-specific therapeutic diet rapidly reversed mineral abnormalities and tended to decrease total indoxyl sulfate levels in patients undergoing hemodialysis but had no effect on inflammation. Future studies to assess the long-term effects of such therapeutic diets are recommended.


Assuntos
Cálcio , Falência Renal Crônica , Adulto , Humanos , Proteína C-Reativa , Estudos Cross-Over , Indicã , Fatores de Crescimento de Fibroblastos , Diálise Renal , Falência Renal Crônica/terapia , Hormônio Paratireóideo , Dieta , Fosfatos , Minerais
5.
Blood Purif ; 52(4): 323-331, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36889302

RESUMO

INTRODUCTION: Cardiovascular (CV) events are the major cause of morbidity and mortality associated with blood pressure (BP) in hemodialysis (HD) patients. BP varies significantly during HD treatment, and the dramatic variation in BP is a well-recognized risk factor for increased mortality. The development of an intelligent system capable of predicting BP profiles for real-time monitoring is important. Our aim was to build a web-based system to predict changes in systolic BP (SBP) during HD. METHODS: In this study, dialysis equipment connected to the Vital Info Portal gateway collected HD parameters that were linked to demographic data stored in the hospital information system. There were 3 types of patients: training, test, and new. A multiple linear regression model was built using the training group with SBP change as the dependent variable and dialysis parameters as the independent variables. We tested the model's performance on test and new patient groups using coverage rates with different thresholds. The model's performance was visualized using a web-based interactive system. RESULTS: A total of 542,424 BP records were used for model building. The accuracy was greater than 80% in the prediction error range of 15%, and 20 mm Hg of true SBP in the test and new patient groups for the model of SBP changes suggested the good performance of our prediction model. In the analysis of absolute SBP values (5, 10, 15, 20, and 25 mm Hg), the accuracy of the SBP prediction increased as the threshold value increased. DISCUSSION: This databae supported our prediction model in reducing the frequency of intradialytic SBP variability, which may help in clinical decision-making when a new patient receives HD treatment. Further investigations are needed to determine whether the introduction of the intelligent SBP prediction system decreases the incidence of CV events in HD patients.


Assuntos
Big Data , Diálise Renal , Humanos , Pressão Sanguínea , Diálise Renal/efeitos adversos , Fatores de Risco , Análise Multivariada
6.
J Invasive Cardiol ; 34(10): E755, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36201000

RESUMO

A 72-year-old man presented with altered consciousness. His past medical history included left renal cell carcinoma status post nephrectomy 3 years earlier, end-stage renal disease with regular hemodialysis, and central venous obstruction with stenting at the right subclavian vein and superior vena cava 8 months earlier. He was intubated and placed on a mechanical ventilator and inotropes for managing respiratory failure and shock. After numerous tests, it was evident that a right atrial mass was hindering blood flow into the right ventricle and causing blood to flow back into the peripheral venous system. This could cause obstructive cardiogenic shock and fluctuating cutaneous varices. The patient refused further intervention and died from multiple organ failure. This unusual phenomenon can provide a clue for the discovery of atrial masses in dialysis patients.


Assuntos
Falência Renal Crônica , Varizes , Idoso , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Masculino , Diálise Renal/efeitos adversos , Veia Subclávia , Varizes/complicações , Varizes/diagnóstico , Varizes/terapia , Veia Cava Superior
7.
J Formos Med Assoc ; 121 Suppl 1: S30-S38, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34980550

RESUMO

BACKGROUND/PURPOSE: The burden of end-stage kidney disease (ESKD) continues to grow globally. Information on medication prescribed to advanced chronic kidney disease (CKD) patients can help formulate further CKD prevention policies. This study aimed to review and assess several major medications routinely prescribed to pre-ESKD patients. METHODS: Medication information of advanced CKD patients one year before regular dialysis was collected from the National Health Insurance Research Database from 2000 to 2018 in Taiwan. Usages of major medication were comprehensively analyzed. RESULTS: During 2000-2018, trends in medication usage evolved gradually in the pre-ESKD population in Taiwan. The use of erythropoietin had increased (48.3% in 2000 to 71.0% in 2018) with decreased blood transfusion rate (70.9% in 2003 to 52.1% in 2018). The use of non-steroidal anti-inflammatory drugs had also dropped (43.5% in 2004 to 25.5% in 2018). These changes were more evident for patients enrolled in the pre-ESKD prevention program. The most frequently used blood pressure-lowering and glucose-lowering agents were calcium channel blockers (90.6%) and insulin (78.1%), but usage of metformin was unexpectedly high (38.4% in 2018). The most frequently used blood thinner was aspirin (49.5%), with considerably increased use of direct oral anticoagulant (16.5% in 2018). CONCLUSION: An overview of the trends of major medication usage and blood transfusion represented the continuously improving care quality in pre-ESKD patients in Taiwan. These trends were especially evident in patients enrolled in the pre-ESKD prevention program. This report also indirectly indicated the potential and long-term benefits of implementing CKD and pre-ESKD prevention programs.


Assuntos
Falência Renal Crônica , Insuficiência Renal Crônica , Humanos , Falência Renal Crônica/tratamento farmacológico , Falência Renal Crônica/epidemiologia , Diálise Renal , Insuficiência Renal Crônica/epidemiologia , Taiwan
8.
Heliyon ; 8(12): e12220, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36590542

RESUMO

Introduction: Indoxyl sulfate (IS), a protein-bound uremic toxin, is associated with kidney function and chronic kidney disease (CKD)-related complications. Currently, serum IS levels are primarily quantified using mass spectrometry-based methods, which are not feasible for routine clinical examinations. Methods: The efficiencies of three commercial ELISA kits in determination of serum IS were validated by comparing with ultra-performance liquid chromatography (UPLC)-MS/MS-based method using Bland-Altman analysis. The associations between kidney parameters and serum IS levels determined by ELISA kit from Leadgene and UPLC-MS/MS were evaluated by Spearman correlation coefficient in a CKD validation cohort. Results: ELISA kit from Leadgene showed clinical agreement with UPLC-MS/MS in the determination of serum IS levels (p = 0.084). In patients with CKD, Spearman's correlation analysis revealed a perfect correlation between the IS levels determined using the Leadgene ELISA kit and UPLC-MS/MS (r = 0.964, p < 0.0001). IS levels determined using the Leadgene ELISA kit were associated with the estimated glomerular filtration rate (r = -0.772, p < 0.0001) and serum creatinine concentration (r = 0.824, p < 0.0001) in patients with CKD, and on dialysis (r = 0.557, p = 0.006). Conclusions: The Leadgene ELISA kit exhibits comparable efficacy to UPLC-MS/MS in quantifying serum IS levels, supporting that ELISA would be a personalized method for monitoring the dynamic changes in serum IS levels in dialysis patients to prevent the progression of CKD.

10.
Front Cardiovasc Med ; 8: 673858, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34041286

RESUMO

Aims: The current study aims to verify the feasibility and safety of chronic total occlusion (CTO)-percutaneous coronary intervention (PCI) via the distal transradial access (dTRA). Methods: Between April 2017 and December 2019, 298 patients who underwent CTO PCI via dTRA were enrolled in this study. The baseline demographic and procedural characteristics were listed and compared between groups. The incidences of access-site vascular complications and procedural complications and mortality were recorded. Results: The mean J-CTO (Japanese chronic total occlusion) score was 2.6 ± 0.9 points. The mean access time was 4.6 ± 2.9 min, and the mean procedure time was 115.9 ± 55.6 min. Left radial snuffbox access was performed successfully in 286 patients (96.5%), and right radial snuffbox access was performed successfully in 133 patients (97.7%). Bilateral radial snuffbox access was performed in 107 patients (35.9%). 400 dTRA (95.5%) received glidesheath for CTO intervention. Two patients (0.7%) developed severe access-site vascular complications. None of the patients experienced severe radial artery spasm and only 2 patients (0.5%) developed radial artery occlusion during the follow-up period. The overall procedural success rate was 93.5%. The procedural success rate was 96.5% in patients with antegrade approach and 87.7% in patients with retrograde approach. Conclusions: It is both safe and feasible to use dTRA plus Glidesheath for complex CTO intervention. The incidences of procedure-related complications and severe access-site vascular complications, and distal radial artery occlusion were low.

11.
Aging (Albany NY) ; 13(5): 6681-6701, 2021 02 17.
Artigo em Inglês | MEDLINE | ID: mdl-33621199

RESUMO

Chronic Kidney Disease (CKD) and neurodegenerative diseases are aging-related diseases. CKD with declined renal function is associated with an elevation of circulating indoxyl sulfate, a metabolite synthesized by gut microbes. We explored the roles of gut microbial metabolites in linking with Central Nervous System (CNS) diseases by administrating indoxyl sulfate intraperitoneally to male C57BL/6 mice with unilateral nephrectomy. Upon exposure, the accumulation of indoxyl sulfate was noted in the blood, prefrontal cortical tissues, and cerebrospinal fluid. Mice showed behavioral signs of mood disorders and neurodegeneration such as anxiety, depression, and cognitive impairment. Those behavioral changes were accompanied by disturbed neuronal survival, neural stem cell activity, expression of Brain-Derived Neurotrophic Factor, serotonin, corticosterone, and Repressor Element-1 Silencing Transcription Factor, and post-receptor intracellular signaling, as well as upregulated oxidative stress and neuroinflammation. Uremic toxin adsorbent AST-120 improved the above mentioned changes. Intriguingly, intracerebroventricular indoxyl sulfate administration only caused limited alterations in the normal mice and the alterations were reversed by aryl hydrocarbon receptor antagonism. The findings suggest pathogenic roles of indoxyl sulfate in the development of CNS diseases, and highlight gut microbiota as alternative targets for intervention with the aim of slowing down the progression of CKD and decreasing CNS complications.


Assuntos
Comportamento Animal/efeitos dos fármacos , Indicã/farmacologia , Nefrectomia , Afeto/efeitos dos fármacos , Animais , Ansiedade/induzido quimicamente , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Carbono/farmacologia , Sobrevivência Celular/efeitos dos fármacos , Disfunção Cognitiva/induzido quimicamente , Corticosterona/metabolismo , Depressão/induzido quimicamente , Indicã/análise , Injeções Intraperitoneais , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Células-Tronco Neurais/efeitos dos fármacos , Neurogênese/efeitos dos fármacos , Estresse Oxidativo , Óxidos/farmacologia , Córtex Pré-Frontal/química , Córtex Pré-Frontal/metabolismo , RNA Mensageiro/metabolismo , Insuficiência Renal Crônica , Proteínas Repressoras/metabolismo , Serotonina/metabolismo
12.
Mol Biol Evol ; 38(10): 4149-4165, 2021 09 27.
Artigo em Inglês | MEDLINE | ID: mdl-33170928

RESUMO

The Taiwanese people are composed of diverse indigenous populations and the Taiwanese Han. About 95% of the Taiwanese identify themselves as Taiwanese Han, but this may not be a homogeneous population because they migrated to the island from various regions of continental East Asia over a period of 400 years. Little is known about the underlying patterns of genetic ancestry, population admixture, and evolutionary adaptation in the Taiwanese Han people. Here, we analyzed the whole-genome single-nucleotide polymorphism genotyping data from 14,401 individuals of Taiwanese Han collected by the Taiwan Biobank and the whole-genome sequencing data for a subset of 772 people. We detected four major genetic ancestries with distinct geographic distributions (i.e., Northern, Southeastern, Japonic, and Island Southeast Asian ancestries) and signatures of population mixture contributing to the genomes of Taiwanese Han. We further scanned for signatures of positive natural selection that caused unusually long-range haplotypes and elevations of hitchhiked variants. As a result, we identified 16 candidate loci in which selection signals can be unambiguously localized at five single genes: CTNNA2, LRP1B, CSNK1G3, ASTN2, and NEO1. Statistical associations were examined in 16 metabolic-related traits to further elucidate the functional effects of each candidate gene. All five genes appear to have pleiotropic connections to various types of disease susceptibility and significant associations with at least one metabolic-related trait. Together, our results provide critical insights for understanding the evolutionary history and adaption of the Taiwanese Han population.


Assuntos
Povo Asiático , Genoma , Povo Asiático/genética , Estudo de Associação Genômica Ampla , Haplótipos , Humanos , Polimorfismo de Nucleotídeo Único
13.
PeerJ ; 8: e9984, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33072437

RESUMO

BACKGROUND: Acute kidney injury (AKI) is one of the most severe complications of burn injury. AKI with severe burn injury causes high mortality. This study aims to investigate the incidence of and predisposing factors for AKI in burn patients. METHODS: This is a single-center, retrospective, descriptive criterion standard study conducted from June 27, 2015, to March 8, 2016. We used Kidney Disease Improving Global Outcomes criteria to define and select patients with AKI. The study was conducted by recruiting in hospital patients who suffered from the flammable cornstarch-based powder explosion and were treated under primary care procedures. A total of 49 patients who suffered from flammable dust explosion-related burn injury were enrolled and admitted on June 27, 2015. The patients with more than 20% total body surface area of burn were transferred to the intensive care unit. Patients received fluid resuscitation in the first 24 hours based on the Parkland formula. The primary measurements were the incidence of and predisposing factors for AKI in these patients. Demographic characteristics, laboratory data, and inpatient outcomes were also evaluated. The incidence of AKI in this cohort was 61.2% (n = 30). The mortality rate was 2.0% (n = 1) during a 59-day follow-up period. The multivariate analysis revealed inhalation injury (adjusted OR = 22.0; 95% CI [1.4-358.2]) and meeting ≥3 American Burn Association (ABA) sepsis criteria (adjusted OR = 13.7; 95% CI [1.7-110.5]) as independent risk factors for early advanced AKI. CONCLUSIONS: The incidence rate of AKI was higher in this cohort than in previous studies, possibly due to the flammable dust explosion-related burn injury. However, the mortality was lower than that expected. In clinical practice, indicators of inflammation, including ABA sepsis criteria may help in predicting the risk of AKI in patients with burn injury.

14.
Int J Mol Sci ; 21(18)2020 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-32932690

RESUMO

Protein-bound uremic toxins, such as p-cresol sulfate (PCS), can be accumulated with declined renal function and aging and is closely linked with central nervous system (CNS) diseases. In the periphery, PCS has effects on oxidative stress and inflammation. Since oxidative stress and inflammation have substantial roles in the pathogenesis of neurological disorders, the CNS effects of PCS were investigated in unilateral nephrectomized C57/BL/6 mice. Unlike intact mice, unilateral nephrectomized mice showed increased circulating levels of PCS after exogenous administration. Upon PCS exposure, the unilateral nephrectomized mice developed depression-like, anxiety-like, and cognitive impairment behaviors with brain PCS accumulation in comparison with the nephrectomy-only group. In the prefrontal cortical tissues, neuronal cell survival and neurogenesis were impaired along with increased apoptosis, oxidative stress, and neuroinflammation. Circulating brain-derived neurotrophic factors (BDNF) and serotonin were decreased in association with increased corticosterone and repressor element-1 silencing transcription factor (REST), regulators involved in neurological disorders. On the contrary, these PCS-induced changes were alleviated by uremic toxin absorbent AST-120. Taken together, PCS administration in mice with nephrectomy contributed to neurological disorders with increased oxidative stress and neuroinflammation, which were alleviated by PCS chelation. It is suggested that PCS may be a therapeutic target for chronic kidney disease-associated CNS diseases.


Assuntos
Cresóis/farmacologia , Inflamação/induzido quimicamente , Transtornos Mentais/induzido quimicamente , Doenças Neurodegenerativas/induzido quimicamente , Neurônios/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Ésteres do Ácido Sulfúrico/farmacologia , Animais , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Carbono/farmacologia , Sobrevivência Celular/efeitos dos fármacos , Corticosterona/metabolismo , Inflamação/metabolismo , Rim/efeitos dos fármacos , Rim/metabolismo , Rim/patologia , Masculino , Transtornos Mentais/metabolismo , Transtornos Mentais/patologia , Camundongos , Camundongos Endogâmicos C57BL , Nefrectomia/métodos , Doenças Neurodegenerativas/metabolismo , Doenças Neurodegenerativas/patologia , Neurônios/metabolismo , Neurônios/patologia , Óxidos/farmacologia , Proteínas Repressoras/metabolismo , Serotonina/metabolismo , Toxinas Biológicas/farmacologia , Uremia/induzido quimicamente , Uremia/metabolismo , Uremia/patologia
15.
FASEB J ; 34(6): 8459-8474, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32362042

RESUMO

Human Leukocyte Antigen (HLA)-DQ2 and HLA-DQ8 are genetic risk factors for Type 1 Diabetes Mellitus (T1DM) and Celiac disease (CD) in Caucasians, but their association with Taiwanese Han population is unknown. We screened 532 Taiwanese T1DM patients for CD biomarkers including anti-tissue transglutaminase (TGM2), anti-gliadin and anti-neoepitope antibodies (Abs), sequencing DQB1 genotypes, and characterized the TGM2 Abs. We report that 3.76% of Taiwanese patients had TGM2-Abs and all had no CD's symptoms. In contrast to Caucasian's CD patients, DQ2/DQ8 only constituted ~4/5 of TGM2-Abs positive patients, while the other ~1/5 patients belonged to different HLA genotypes. Either anti-gliadin or anti-neoepitope Abs coexisted with ~3/4 of TGM2-Abs positive patients that were likely due to gluten-ingestion, while the cause of TGM2-Abs production for other ~1/4 of patients was unknown. Purified anti-TGM2 IgA (TGA) and anti-TGM2 IgG (TGG) could bind on endothelial cells surface, recognized native better than denatured forms of TGM2, and TGA inhibited TGM2's transamidation activity by up to 80% but TGG had no effects. Epitope mapping of all TGM2-Abs positive sera demonstrated that TGM2-Abs had heterogeneity in specificities. This is the first study on the differences between Taiwanese Han group and Caucasian in HLA genotypes and properties of TGM2-Abs.


Assuntos
Autoanticorpos/genética , Diabetes Mellitus Tipo 1/genética , Proteínas de Ligação ao GTP/genética , Antígenos HLA-DQ/genética , Transglutaminases/genética , Adolescente , Doença Celíaca/genética , Criança , Pré-Escolar , Células Endoteliais/metabolismo , Feminino , Genótipo , Gliadina/genética , Humanos , Imunoglobulina A/genética , Lactente , Masculino , Proteína 2 Glutamina gama-Glutamiltransferase , Taiwan
16.
Int J Mol Sci ; 21(4)2020 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-32070049

RESUMO

Indoxyl sulphate (IS) and p-cresyl sulphate (PCS) are two protein bound uraemic toxins accumulated in chronic kidney disease (CKD) and associated with adverse outcomes. The purpose of this study isto evaluate the effect of the new activated charcoal, CharXgen, on renal function protection and lowering serum uraemic toxins in CKD animal model. The physical character of CharXgen was analyzed before and after activation procedure by Scanning Electron Microscope (SEM) and X-ray diffractometer (XRD). The effect of CharXgen on biochemistry and lowering uremic toxins was evaluated by in vitro binding assay and CKD animal model. CharXgen have high interior surface area analyzed by SEM and XRD and have been produced from local bamboo after an activation process. CharXgen was able to effectively absorb IS, p-cresol and phosphate in an in vitro gastrointestinal tract simulation study. The animal study showed that CharXgen did not cause intestine blackening. Serum albuminand liver function did not change after feeding with CharXgen. Moreover, renal function was improved in CKD rats fed with CharXgen as compared to the CKD group, and there were no significant differences in the CKD and the CKD + AST-120 groups. Serum IS and PCS were higher in the CKD group and lower in rats treated with CharXgen and AST-120. In rats treated with CharXgen, Fibroblast growth factor 23 was significantly decreased as compared to the CKD group. This change cannot be found in rats fed with AST-120.It indicates that CharXgen is a new safe and non-toxic activated charcoal having potential in attenuating renal function deterioration and lowering protein-bound uraemic toxins. Whether the introduction of this new charcoal could further have renal protection in CKD patients will need to be investigated further.


Assuntos
Carvão Vegetal/farmacologia , Insuficiência Renal Crônica/tratamento farmacológico , Sasa/química , Toxinas Biológicas/sangue , Uremia/tratamento farmacológico , Alginatos/química , Alginatos/farmacologia , Animais , Carbono/farmacologia , Linhagem Celular , Cresóis/farmacologia , Modelos Animais de Doenças , Humanos , Indicã/farmacologia , Microscopia Eletrônica de Varredura , Microesferas , Óxidos/farmacologia , Ratos , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/patologia , Ésteres do Ácido Sulfúrico/farmacologia , Uremia/sangue , Uremia/complicações , Uremia/patologia
17.
Sci Data ; 6(1): 313, 2019 12 09.
Artigo em Inglês | MEDLINE | ID: mdl-31819065

RESUMO

Hemodialysis (HD) is a treatment given to patients with renal failure. Notable treatment-related complications include hypotension, cramps, insufficient blood flow, and arrhythmia. Most complications are associated with unstable blood pressure during HD. Physicians are devoted to seeking solutions to prevent or lower the incidence of possible complications. With advances in technology, big data have been obtained in various medical fields. The accumulated dialysis records in each HD session can be gathered to obtain big HD data with the potential to assist HD staff in increasing patient wellbeing. We generated a large stream of HD parameters collected from dialysis equipment associated with the Vital Info Portal gateway and correlated with the demographic data stored in the hospital information system from each HD session. We expect that the application of HD big data will greatly assist HD staff in treating intradialytic hypotension, setting optimal dialysate parameters, and even developing an intelligent early-warning system as well as providing individualized suggestions regarding dialysis settings in the future.


Assuntos
Pressão Sanguínea , Diálise Renal , Soluções para Diálise , Humanos , Hipotensão/prevenção & controle , Hipotensão/terapia
20.
Am J Cardiovasc Drugs ; 19(3): 325-334, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30746615

RESUMO

OBJECTIVE: This study investigated the efficacy and safety of ticagrelor compared with clopidogrel in patients with end-stage renal disease (ESRD) and acute myocardial infarction (AMI). METHODS: We retrospectively enrolled patients who had received regular dialysis and had undergone percutaneous coronary intervention (PCI) for AMI at our hospital between January 2013 and December 2016. Outcomes analyzed included cardiovascular death, death from any cause, MI, stroke, and bleeding events. RESULT: Patients were allocated to the ticagrelor group (N = 74) or the clopidogrel group (N = 116) according to the treatment they had received. No statistically significant differences were found between the groups in terms of in-hospital primary endpoint (composite of cardiovascular death, MI, and stroke: 12.2% and 15.5% for ticagrelor and clopidogrel, respectively; p = 0.518), secondary endpoint, or any bleeding events (39.2 vs. 34.5%; p = 0.511). No statistically significant differences were found for the 1-year primary endpoint (p = 0.424), secondary endpoint, and any bleeding events (p = 0.663). Risk factors for in-hospital cardiovascular death were shock and cardiopulmonary resuscitation at initial AMI presentation, lack of beta-blocker use, and in-hospital gastrointestinal bleeding. Risk factors for 1-year cardiovascular death were shock at initial AMI presentation and lack of beta-blocker use. Only respiratory failure was a risk factor for in-hospital and 1-year gastrointestinal bleeding. CONCLUSION: In patients with ESRD and AMI, ticagrelor resulted in numerically fewer but statistically nonsignificant rates of in-hospital and 1-year cardiovascular events with no significant increase in bleeding events compared with clopidogrel.


Assuntos
Clopidogrel/administração & dosagem , Falência Renal Crônica/fisiopatologia , Infarto do Miocárdio/terapia , Ticagrelor/administração & dosagem , Idoso , Clopidogrel/efeitos adversos , Feminino , Hemorragia/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea/métodos , Inibidores da Agregação Plaquetária/administração & dosagem , Inibidores da Agregação Plaquetária/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Acidente Vascular Cerebral/epidemiologia , Ticagrelor/efeitos adversos , Resultado do Tratamento
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