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1.
Lab Invest ; 103(8): 100156, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37119854

RESUMO

Paraneoplastic nephrotic syndrome (PNS) is a complication seen in cancer patients. Ultrastructural examination shows the accumulation of proteins and the presence of foot process (FP) effacement in the glomeruli of PNS patients. Previously, we reported that orthotopic xenografts of Lewis lung carcinoma 1 in C57BL/6 mice caused them to develop lung cancer with albuminuria. This implies that these mice can be used as a model of human disease and suggests that Lewis lung carcinoma 1 cell-secreted proteins (LCSePs) contain nephrotoxic molecules and cause inflammation in renal cells. As podocyte effacement was present in glomeruli in this model, such podocyte injury may be attributable to either soluble LCSeP or LCSeP deposits triggering pathological progression. LCSePs in conditioned media was concentrated for nephrotoxicity testing. Integrin-focal adhesion kinase (FAK) signaling and inflammatory responses were evaluated in podocytes either exposed to soluble LCSePs or seeded onto substrates with immobilized LCSePs. FAK phosphorylation and interleukin-6 expression were higher in podocytes attached to LCSePs substrates than in those exposed to soluble LCSePs. Notably, LCSeP-based haptotaxis gave rise to altered signaling in podocytes. When podocytes were stimulated by immobilized LCSePs, FAK accumulated at focal adhesions, synaptopodin dissociated from F-actin, and disrupting the interactions between synaptopodin and α-actinin was observed. When FAK was inhibited by PF-573228 in immobilized LCSePs, the association between synaptopodin and α-actinin was observed in the podocytes. The association of synaptopodin and α-actinin with F-actin allowed FP stretching, establishing a functional glomerular filtration barrier. Therefore, in this mouse model of lung cancer, FAK signaling prompts podocyte FP effacement and proteinuria, indicative of PNS.


Assuntos
Carcinoma Pulmonar de Lewis , Neoplasias Pulmonares , Podócitos , Camundongos , Humanos , Animais , Actinas/metabolismo , Proteína-Tirosina Quinases de Adesão Focal/metabolismo , Actinina/metabolismo , Carcinoma Pulmonar de Lewis/metabolismo , Carcinoma Pulmonar de Lewis/patologia , Camundongos Endogâmicos C57BL , Proteinúria/metabolismo , Podócitos/metabolismo , Neoplasias Pulmonares/metabolismo
2.
Acta Cardiol Sin ; 38(6): 667-682, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36440245

RESUMO

Background: In patients with end-stage renal disease (ESRD), acute myocardial infarction (AMI) increases the risks of cardiovascular events, death, and bleeding. Several scores have been developed for predicting ischemic and bleeding outcomes in AMI patients, but none have been validated specifically for ESRD patients. Objectives: To compare and validate different risk scores as predictors of ischemic and bleeding outcomes in AMI patients with ESRD. Methods: This retrospective study enrolled 340 patients who had received percutaneous coronary intervention for AMI while undergoing maintenance hemodialysis for ESRD. Ischemic risk scores (TIMI-STEMI, TIMI-NSTEMI, GRACE, DAPT) and bleeding risk scores (PRECISE-DAPT, CRUSADE, ACUITY, ACTION, SWEDEHEART) were calculated. The ischemic outcome mainly focused on major adverse cardiovascular events (MACEs) within 14 days after hospitalization, and the bleeding outcome was 14-day major bleeding according to the CRUSADE criteria. Results: The GRACE score was superior in discriminating ischemic outcomes, especially in 14-day MACEs [area under curve (AUC) 0.791, p < 0.001]. None of the scores could ideally discriminate 14-day CRUSADE major bleeding, while the PRECISE- DAPT score had the best discriminative power (AUC 0.636, p < 0.001). Either GRACE score > 222 or PRECISE-DAPT score > 48 was associated with higher net adverse cardiovascular events (a composite of 14-day MACEs and 14-day CRUSADE major bleeding). Conclusions: In AMI patients with ESRD, the GRACE score can effectively discriminate the risk of short-term ischemic events. None of the scores could ideally discriminate the bleeding risk, but a high PRECISE-DAPT score still represented a higher rate of bleeding events.

3.
J Formos Med Assoc ; 120(6): 1350-1360, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34074499

RESUMO

BACKGROUND: Identification and treatment for latent tuberculosis infection (LTBI) are of great epidemiological importance of controlling tuberculosis (TB) worldwide. Identification in high-risk population on dialysis and treatment with 12-week weekly rifapentine plus isoniazid (3HP) help improve prevention outcomes effectively. METHODS: We conducted a single-center, nonrandomized follow-up study on end-stage renal disease patients on hemodialysis. The interferon-gamma release assay (IGRA) was used for the diagnosis of LTBI. Participants were treated with 3HP, and treatment responses were recorded and analyzed. RESULTS: A total of 123 of the 641 patients showed positive IGRA results. The male sex, age >60 years, low serum albumin level (<4.0 g/dL), and hypercalcemia (serum calcium level > 10.2 mg/dL) were associated with IGRA positivity. Seventy-five patients were treated with 3HP, with a completion rate of 66.67%. The male sex, albumin level >4.0 g/dL, and absence of adverse drug reaction were associated with increased completion rates. Adverse drug reactions included dizziness, fatigue, nausea and vomiting, fever, and hypertension. CONCLUSION: Risk factors for LTBI in dialysis patients were identified to prioritize LTBI screening and initiate early treatment. The completion rate in dialysis patients were approximately 2 of 3 patients with mild adverse drug reaction, leading to discontinuation of the treatment.


Assuntos
Tuberculose Latente , Antituberculosos/uso terapêutico , Quimioterapia Combinada , Seguimentos , Humanos , Isoniazida/uso terapêutico , Tuberculose Latente/diagnóstico , Tuberculose Latente/tratamento farmacológico , Tuberculose Latente/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Diálise Renal , Taiwan/epidemiologia
4.
Clin Exp Nephrol ; 24(11): 1050-1057, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32757098

RESUMO

BACKGROUND: To describe the associated factors for non-medical reasons for dropout in peritoneal dialysis (PD) patients. METHODS: A retrospective cohort study was performed using registry data of adult patients commencing PD as their initial renal replacement therapy in one hospital-facilitated PD center in Taiwan between 2014 and 2018. The collected data included socio-demographics and relevant medical and PD-related parameters. Kaplan-Meier analysis was used to determine the impact of non-medical reasons and medical reasons on PD dropout. RESULTS: The analysis included 224 PD patients, of whom 37 dropped out for non-medical reasons and 187 for medical reasons during the study period. There was significant difference between the two cohorts in age (62.3 years vs. 56.1 years, P = 0.010) and PD vintage (median 3.4 years vs. 4.8 years, P = 0.001). Diabetes was more predominant in the cohort for non-medical reasons than in the one for medical reasons (54.1% vs. 27.3% respectively, P = 0.001). In non-medical reason cohort, two leading reasons given for dropping out were lacking of caregivers (n = 12) and losing confidence (n = 10), whereas PD-related peritonitis (n = 101) was the main medical reason for PD dropout. Using Kaplan-Meier curve analysis, patients in the non-medical reason cohort demonstrated higher cumulative dropout rate compared to patients in the medical reason cohort during a 10-year period (P < 0.001). CONCLUSIONS: The main characteristics of PD dropout patients for non-medical reasons are age, diabetes, patients' perception and caregiver support.


Assuntos
Atitude , Pacientes Desistentes do Tratamento/psicologia , Diálise Peritoneal/psicologia , Apoio Social , Adulto , Fatores Etários , Idoso , Cuidadores , Comorbidade , Diabetes Mellitus/epidemiologia , Feminino , Humanos , Falência Renal Crônica/epidemiologia , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Percepção , Diálise Peritoneal/efeitos adversos , Peritonite/etiologia , Sistema de Registros , Estudos Retrospectivos , Fatores de Tempo
5.
Kidney Blood Press Res ; 44(2): 264-276, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30955008

RESUMO

BACKGROUND/AIMS: Studies on the long-term clinical benefits of hemodiafiltration (HDF) and high-flux hemodialysis (HFHD) are very limited. This study aimed to investigate the hospitalization rate and aortic arch calcification (AAC) of these two dialysis modalities over 6 years. METHODS: Participants who received regular HDF and HFHD in one hospital-facilitated hemodialysis center were prospectively enrolled after matching for age, sex, and diabetes between January 2009 and December 2014. Medical records were reviewed retrospectively on demographics, laboratory variables, calcified scores in aortic arch measured by chest radiography, and rates of hospital admission. Cox proportional hazard regression and linear regression were used to obtain the outcome results. RESULTS: The HDF and HFHD groups consisted of 108 and 102 participants, respectively. Levels of laboratory variables including small soluble solutes and Kt/V were not statistically different over the 6-year period between the HDF and HFHD groups. Calcified scores of the aortic arch increased over 6 years in both groups. The changes in the mean calcified scores were significant when compared between the two groups (0.44-1.82 in HFHD, 0.79-1.8 in HDF, respectively, p = 0.008). Hospitalization rates were 735 per 1,000 patients in the HDF group and 852 per 1,000 patients in the HFHD group, respectively. No significant difference was observed in frequency and days of hospitalization between HDF and HFHD. CONCLUSION: Hospitalization rates and AAC were observed to be equal for HDF and HFHD.


Assuntos
Estenose da Valva Aórtica , Hemodiafiltração/normas , Hospitalização , Diálise Renal/normas , Soluções/farmacocinética , Adulto , Idoso , Aorta Torácica/patologia , Calcinose , Feminino , Hemodiafiltração/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Diálise Renal/métodos , Estudos Retrospectivos
6.
Blood Purif ; 48(2): 124-130, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30699413

RESUMO

BACKGROUND: We investigated the longitudinal trend of functional performance in peritoneal dialysis (PD) patients over 1 year after PD commencement and its related clinical parameters. METHODS: One hundred and ninety-six PD patients were enrolled in this study. Karnofsky Performance Status Scale(KPSS) scores were used to assess functional performance. Patients were stratified into 3 groups according to the changes in KPSS from baseline to 1 year. A logistic regression analysis was performed to examine the associations of clinical parameters with KPSS changes. RESULTS: Patients with KPSS declined showed older age and higher serum albumin concentration reduction within 1 year than those in KPSS improved and stable changes. Age was the significant risk factor for KPSS decline, while male and diabetes were significantly associated with non-declined KPSS by multivariable logistic regression analysis. CONCLUSION: The main determinants of KPSS trend were age, sex, and diabetes in new PD patients.


Assuntos
Falência Renal Crônica/fisiopatologia , Falência Renal Crônica/terapia , Diálise Peritoneal , Adulto , Idoso , Envelhecimento , Feminino , Humanos , Rim/fisiopatologia , Falência Renal Crônica/sangue , Falência Renal Crônica/complicações , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Desempenho Físico Funcional , Albumina Sérica Humana/análise
7.
BMC Nephrol ; 20(1): 254, 2019 07 10.
Artigo em Inglês | MEDLINE | ID: mdl-31291904

RESUMO

BACKGROUND: In this study, we investigated the association of time-varying serum albumin levels with mortality over a 5-year period in one cohort of patients undergoing long-term peritoneal dialysis (PD) therapy. METHODS: The participants in this study enrolled 302 patients who underwent long-term PD at a single PD center in Taiwan. We reviewed medical records from 2011 to 2015 retrospectively. Time-averaged albumin level and serum albumin reach rate (defined as the percentage of serum albumin measurements that reached ≥3.5 g/dL) were applied as the predictor variables in the first 2 years (2011-2012). All-cause mortality was used as the outcome variable in the subsequent 3 years (2013-2015). Hazard function of all-cause mortality in the study participants was examined by using Cox proportional hazard regression models . RESULTS: Patients with different albumin reach rates (75-< 100%, 50-< 75%, 1-< 50%) did not exhibit a significantly increased risk for all-cause mortality. Patients with a 0% albumin reach rate exhibited a significantly increased risk for all-cause mortality (hazard ratio [HR] 7.59, 95% confidence interval [CI], 2.38-24.21) by fully adjusted analysis. Patients with time-averaged albumin levels of < 3.5 g/dL (HR 15.49, 95% CI 1.74-137.72) exhibited a higher risk for all-cause mortality than those with serum albumin levels ≥4.0 g/dL. CONCLUSIONS: This study demonstrated that higher serum albumin reach rates and higher time-averaged serum albumin levels are associated with a lower mortality rate over a 5-year period among patients undergoing long-term PD.


Assuntos
Falência Renal Crônica/sangue , Falência Renal Crônica/mortalidade , Diálise Peritoneal , Albumina Sérica/análise , Adulto , Idoso , Causas de Morte , Feminino , Humanos , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo
8.
Int J Qual Health Care ; 31(4): 252-260, 2019 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-30060200

RESUMO

OBJECTIVE: To analyze the effects of chronic kidney disease (CKD) care programs on clinical outcomes. DESIGN: An observational, retrospective study with medical record review. SETTING: Kaohsiung Chang Gung Memorial Hospital. PARTICIPANTS: Patients diagnosed with CKD. INTERVENTIONS: CKD care programs conducted by nephrologists-based team from 2006 to 2013 in our hospital. MAIN OUTCOME MEASURES: We set 10 goals with treatment target ranges based on the guidelines suggested by the following organizations: Kidney Disease Improving Global Outcomes (2012) and the National Kidney Foundation Kidney Disease Outcomes Quality Initiative (2003). RESULTS: In total, 1486 patients were enrolled. Their average estimated glomerular filtration rate (ml/min/1.73 m2) was 31.9 at baseline and declined to 28.9 in Year 3 (P < 0.001). The all-goals attainment rate increased from 59.4% at baseline to 60.5% in Year 3, with an especially significant improvement for low-density lipoprotein (from 46.8% to 67.0%) and glycated hemoglobin (from 55.0% to 64.0%). Achievement rates decreased for hemoglobin (from 34.2% to 31.0%), calcium (from 94.6% to 92.3%) and phosphate (from 89.9% to 82.5%) between baseline and Year 3. Albuminuria was the least achieved goal (from 23.4% to 24.0%). Subgroup analysis revealed that estimated glomerular filtration rate did not decline in patients who had a good achievement rate, but decreased significantly in patients with a poor achievement rate. CONCLUSION: Enrolment in CKD care programs resulted in a significant improvement in goal attainment by patients. Further, a good achievement rate was associated with better preservation of residual renal function.


Assuntos
Taxa de Filtração Glomerular/fisiologia , Insuficiência Renal Crônica/terapia , Idoso , Albuminúria , Cálcio/sangue , Progressão da Doença , Feminino , Hemoglobinas Glicadas/análise , Hemoglobinas , Humanos , Lipoproteínas LDL/sangue , Masculino , Pessoa de Meia-Idade , Fosfatos/sangue , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/fisiopatologia , Estudos Retrospectivos , Taiwan
9.
J Formos Med Assoc ; 118(4): 807-814, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30245144

RESUMO

PURPOSE: We examined the association between catheter use for maintenance hemodialysis (HD) and mortality/hospitalization in a cohort of patients with prevalent HD. METHODS: In this study, 70 HD patients with tunneled cuffed central venous catheters (TCVCs) from a Taiwanese HD center during 2014-2016 were enrolled and compared with 70 matched HD patients with native arteriovenous fistulae (AVF). The compared variables included demographic parameters and laboratory and dialysis-related indices. Cox regression analysis was used to assess the risk of mortality/hospitalization within a year. RESULTS: Low baseline serum albumin levels were found in patients with TCVCs (3.64 g/dL vs 3.79 g/dL, p = 0.030). The mortality rates of patients with AVF and TCVCs were 14 per 1000 patients and 171 per 1000 patients, respectively. Infection was the leading cause of mortality/hospitalization in patients with TCVCs. Using multivariate analyses, the risk of death was found to be significantly higher in patients with TCVCs than in those with AVF (Hazard ratio [HR] 12.15, 95% CI 1.16-127.17; p = 0.037). Patients with TCVC also had a higher hospitalization rate (HR 1.33, 95% CI 0.71-2.49; p = 0.369) (not statistically significant). CONCLUSION: Catheter use for maintenance HD was associated with increased all-cause mortality.


Assuntos
Fístula Arteriovenosa/mortalidade , Cateterismo Venoso Central/mortalidade , Diálise Renal/mortalidade , Idoso , Idoso de 80 Anos ou mais , Causas de Morte , Cateteres Venosos Centrais/efeitos adversos , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Morbidade , Análise Multivariada , Prevalência , Fatores de Risco , Análise de Sobrevida , Taiwan/epidemiologia
10.
Med Princ Pract ; 28(3): 273-279, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30636243

RESUMO

OBJECTIVE: Recent studies have reported that reduced excretion of urinary uromodulin is associated with renal tubular function and risks of progressive kidney disease. Gouty nephropathy is usually seen in patients with gout. Patients with chronic gouty nephropathy are characterized by the deposition of monosodium urate crystals primarily involving the collecting ducts in the medulla. We postulated that this correlation may be specific to gout and may serve as a useful biomarker for chronic kidney disease (CKD). MATERIALS AND METHODS: A total of 114 Taiwanese patients diagnosed with gout (n = 72), CKD (n = 26), or healthy volunteers (n = 16) were prospectively enrolled for this study from the Rheumatology and Nephrology Outpatient Clinics of our institution. We obtained urine and blood samples on patient visits to the outpatient clinics. Demographic data were obtained from medical records. RESULTS: In patients with gout, the spot urinary uromodulin/creatinine ratio (uUMCR; mg/g) in patients with CKD was significantly lower than that in those without CKD (CKD group: 2.2; non-CKD group: 5.6, p = 0.005). Multivariate analysis revealed that patients with CKD and gout had a lower uUMCR than those with gout alone (p = 0.028). A significant association was not observed in our non-gout cohort. CONCLUSION: The association of decreased uUMCR with CKD status was identified only in patients with gout in the present study. We believe that uUMCR might serve as an indicator of differential CKD in patients with gout.


Assuntos
Creatinina/urina , Gota/epidemiologia , Insuficiência Renal Crônica/epidemiologia , Uromodulina/urina , Adulto , Idoso , Biomarcadores , Feminino , Gota/urina , Humanos , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos , Insuficiência Renal Crônica/urina , Fatores Socioeconômicos , Taiwan/epidemiologia
11.
Blood Purif ; 46(1): 12-18, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29649798

RESUMO

BACKGROUND/AIMS: We investigated factors associated with functional performance in hemodialysis (HD) patients as well as their relationships with mortality. METHODS: We enrolled 790 HD patients who were followed up from 2009 to 2013. Functional performance was evaluated by Karnofsky Performance Status Scale (KPSS) scores. We examined the associations of clinical variables and all-cause mortality with KPSS scores. RESULTS: Of the participants, 460 had high KPSS scores (range 90-100) and 330 had low KPSS scores (below 80). On multivariate analysis, age and weekly HD sessions were associated with significantly increased odds of a lower KPSS score (age: OR 1.05, 95% CI 1.04-1.07, p < 0.001; weekly HD: OR 2.10, 95% CI 1.37-3.21, p = 0.001). A low KPSS score was a significant predictor of increased all-cause mortality (hazard ratio 1.49; 95% CI 1.02-2.16, p = 0.037), as determined using Cox regression analysis. CONCLUSION: Functional performance was associated with clinical variables and all-cause mortality in HD patients.


Assuntos
Desempenho Físico Funcional , Diálise Renal/mortalidade , Seguimentos , Humanos , Avaliação de Estado de Karnofsky , Falência Renal Crônica/epidemiologia , Falência Renal Crônica/mortalidade , Falência Renal Crônica/fisiopatologia , Falência Renal Crônica/terapia , Análise de Regressão , Fatores de Risco , Taiwan
12.
J Clin Lab Anal ; 32(1)2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28449305

RESUMO

BACKGROUND: Hemodialysis (HD) vascular access failure is one of the most important causes of morbidity and contributes to the cost of dialysis care. There is paucity of data evaluating long-term monitoring of C-reactive protein (CRP) on outcome of HD vascular access. METHODS: We conducted a retrospective study to investigate whether variability of serum CRP level was associated with vascular access failure rate over a 7-year period. A total of 318 HD patients were included. Their demographic data, co-morbidities and biochemical data were reviewed and collected. Serum high-sensitivity CRP (hs-CRP) level was measured every 6 months. Patients were divided into three groups according to their serial hs-CRP levels. Patients with their hs-CRP below 2 mg/L were defined as low group (n=65, 20.4%) and those with higher than 4 mg/L were defined as high (n=39, 12.3%). The rest were classified as fluctuated hs-CRP group (n=214, 67.3%). Treatment of vascular access failure includes angioplasty and access re-creation. RESULTS: Their body mass index, indicators of dialysis adequacy and serum albumin and hs-CRP levels differed significantly among three groups. The annual vascular access failure rate was significantly higher in fluctuated hs-CRP group than in high hs-CRP group (0.41 vs 0.36, P=.037). Serum albumin was a significant associate of vascular access failure. Kaplan-Meier survival analysis indicated patients with high or fluctuated hs-CRP had shorter free interval of vascular access failure than low hs-CRP group. CONCLUSIONS: HD patients with fluctuated hs-CRP levels were associated with increased vascular access failure.


Assuntos
Proteína C-Reativa/análise , Diálise Renal/estatística & dados numéricos , Dispositivos de Acesso Vascular/estatística & dados numéricos , Idoso , Diabetes Mellitus/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
13.
Int J Med Sci ; 14(8): 735-740, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28824308

RESUMO

Objective: It has been uncertain that low protein diet for patients with chronic kidney disease (CKD) may predispose to malnutrition. The study aimed to investigate the effects of low protein diet on body composition of CKD patients and analyze the influence of age. Methods: Patients with glomerular filtration rate less than 45 mL/min/1.73m2 including 103 elderly (70.7 ± 6.9 years old) and 56 non-elderly (49.8 ± 9.1 years old) CKD patients were enrolled. All patients were educated by dietitians to take low protein diet and were followed up regularly every three months. Their demographic data, underlying disease and body mass index (BMI) were reviewed and recorded. Results of body composition measurement and laboratory tests were collected every three months for one year. Results: At baseline, the distribution of body composition was similar in non-elderly patients between non-low and low protein groups. In the elderly, patients in low protein group had higher fat and lower muscle percentage. In one-year follow-up, non-elderly patients did not present significant changes in their BMI, serum albumin level and body compositions in both protein groups. Non-low protein group in elderly patients had significant decrease in BMI and estimated glomerular filtration rate (eGFR) after 12 months (both p< 0.05). Determination in body composition showed decrease in fat and increase in muscle component. In low protein group, their BMI was decreased and eGFR was not influenced. Fat component was decreased and muscle percentage was increased in one-year follow-up. Conclusions: In elderly CKD patients, low protein diet maintained good nutritional status and muscle mass was preserved.


Assuntos
Composição Corporal/fisiologia , Falência Renal Crônica/dietoterapia , Obesidade/dietoterapia , Insuficiência Renal Crônica/dietoterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Progressão da Doença , Feminino , Taxa de Filtração Glomerular/fisiologia , Humanos , Falência Renal Crônica/fisiopatologia , Masculino , Pessoa de Meia-Idade , Estado Nutricional , Obesidade/fisiopatologia , Insuficiência Renal Crônica/fisiopatologia
15.
Int J Occup Saf Ergon ; 21(2): 233-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26323784

RESUMO

This study traced a deployed real IT system to enhance occupational safety for a polluted confined space. By incorporating wireless technology, it automatically monitors the status of workers on the site and upon detected anomalous events, managers are notified effectively. The system, with a redefined standard operations process, is running well at one of Formosa Petrochemical Corporation's refineries. Evidence shows that after deployment, the system does enhance the safety level by real-time monitoring the workers and by managing well and controlling the anomalies. Therefore, such technical architecture can be applied to similar scenarios for safety enhancement purposes.


Assuntos
Espaços Confinados , Monitoramento Ambiental/métodos , Sistemas de Informação/organização & administração , Gestão da Segurança/métodos , Desenho de Equipamento , Humanos , Saúde Ocupacional , Taiwan
16.
Blood Purif ; 37(1): 76-83, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24576840

RESUMO

BACKGROUND: Removal of protein-bound uremic toxins by dialysis therapy is limited. The effect of oral adsorbent AST-120 in chronic dialysis patients has rarely been investigated. METHODS: AST-120 was administered 6.0 g/day for 3 months in 69 chronic dialysis patients. The blood concentrations of indoxyl sulfate, p-cresol sulfate and biomarkers of cardiovascular risk were determined before and after AST-120 treatment. RESULTS: AST-120 significantly decreased both the total and free forms of indoxyl sulfate and p-cresol sulfate ranging from 21.9 to 58.3%. There were significant simultaneous changes of the soluble tumor necrosis factor-like weak inducer of apoptosis (sTWEAK, 24% increase), malondialdehyde (14% decrease) and interleukin-6 (19% decrease). A significant association between the decrease of indoxyl sulfate and changes of sTWEAK and interleukin-6 was noted. CONCLUSIONS: AST-120 effectively decreased indoxyl sulfate and p-cresol sulfate levels in both total and free forms. AST-120 also improved the profile of cardiovascular biomarkers.


Assuntos
Carbono/uso terapêutico , Doenças Cardiovasculares/sangue , Cresóis/sangue , Indicã/sangue , Falência Renal Crônica/terapia , Óxidos/uso terapêutico , Diálise Renal , Ésteres do Ácido Sulfúrico/sangue , Uremia/terapia , Adsorção , Adulto , Biomarcadores/sangue , Carbono/administração & dosagem , Doenças Cardiovasculares/etiologia , Cresóis/isolamento & purificação , Citocina TWEAK , Feminino , Humanos , Indicã/isolamento & purificação , Interleucina-6/sangue , Falência Renal Crônica/sangue , Falência Renal Crônica/complicações , Masculino , Malondialdeído/sangue , Pessoa de Meia-Idade , Óxidos/administração & dosagem , Ligação Proteica , Fatores de Risco , Ésteres do Ácido Sulfúrico/isolamento & purificação , Fatores de Necrose Tumoral/sangue , Uremia/sangue , Uremia/complicações
17.
Acta Cardiol Sin ; 30(1): 67-73, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27122770

RESUMO

BACKGROUND: Statins are lipid-lowering drugs that can simultaneously evoke pleiotropic effects on cardioprotection, vasodilation, and diabetes prevention. Recently, statins have been reported to be able to activate the AMP-activated protein kinase, thereby up-regulating sirtuin (SIRT) that functions as non-histone deacetylases. Therefore, it is essential to investigate the post-translational acetylome that might explain the mechanism of statin-modulated pleiotropic effects. METHODS: Endothelial cells EAhy 926 treated with rosuvastatin were used to monitor the expression of SIRTs proteins. The protein lysates of both mock- and rosuvastatin-treated cells were further separated by two- dimensional gel electrophoresis coupled with western blotting analysis. The significantly changed acetyl- containing proteins detected by using an anti-acetyl lysine antibody were collected from another preparative gel for mass spectrometric assay to identify the acetylated site in the proteins. RESULTS: Rosuvastatin treatment was shown to increase the SIRT1 expression when compared with SIRT2. Among 100 detected proteins with acetylated signal, 12 showed an increased level of acetylation, whereas 6 showed a decreased level of acetylation (deacetylation). The acetylated lysine (K) sites of 3 heat shock proteins, i.e., HSP47/K(165), HSP70/K(380), and heat shock-inducible protein/K(417), were determined. We also found that beta-filamin, elongation factor, galectin and hCG22067 have 2 acetylated lysine sites in their peptide sequences. These dynamic acetylations might alter the protein's function and are thought to be important in regulating statin-mediated pleiotropic effect. CONCLUSIONS: Our study provided a feasible methodology for detecting acetylated proteins. This acetylome information may be utilized to explain, at least partially, the mechanisms of statin-derived pleiotropic effects. KEY WORDS: Acetylation/deacetylation; Acetylome; Endothelial cell; Proteomics; Rosuvastatin; Sirtuin.

18.
Heliyon ; 10(7): e28253, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38571637

RESUMO

Mercury's neurotoxic effects have prompted the development of advanced control and remediation methods to meet stringent measures for industries with high-mercury feedstocks. Industries with significant Hg emissions, including artisanal and small-scale gold mining (ASGM)-789.2 Mg year-1, coal combustion-564.1 Mg year-1, waste combustion-316.1 Mg year-1, cement production-224.5 Mg year-1, and non-ferrous metals smelting-204.1 Mg year-1, use oxidants and adsorbents capture Hg from waste streams. Oxidizing agents such as O3, Cl2, HCl, CaBr2, CaCl2, and NH4Cl oxidize Hg0 to Hg2+ for easier adsorption. To functionalize adsorbents, carbonaceous ones use S, SO2, and Na2S, metal-based adsorbents use dimercaprol, and polymer-based adsorbents are grafted with acrylonitrile and hydroxylamine hydrochloride. Adsorption capacities span 0.2-85.6 mg g-1 for carbonaceous, 0.5-14.8 mg g-1 for metal-based, and 168.1-1216 mg g-1 for polymer-based adsorbents. Assessing Hg contamination in soils and sediments uses bioindicators and stable isotopes. Remediation approaches include heat treatment, chemical stabilization and immobilization, and phytoremediation techniques when contamination exceeds thresholds. Achieving a substantially Hg-free ecosystem remains a formidable challenge, chiefly due to the ASGM industry, policy gaps, and Hg persistence. Nevertheless, improvements in adsorbent technologies hold potential.

19.
Biomed J ; 46(1): 170-178, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35158075

RESUMO

BACKGROUND: To apply non-invasive Automatic Tongue Diagnosis System (ATDS) in analyzing tongue features in patients with chronic kidney disease (CKD). METHODS: This was a cross-sectional, case-controlled observational study. Patients with CKD who met the inclusion and exclusion criteria were enrolled and divided into the following groups according to renal function and dialysis status: non-dialysis CKD group; end-stage renal disease (ESRD) group; and control group. Tongue images were captured and eight tongue features-shape, color, fur thickness, saliva, fissure, ecchymosis, teeth marks, and red dots-were imaged and analyzed by ATDS. RESULTS: 117 participants (57 men, 60 women) were enrolled in the study, which included 16 in control group, 38 in non-dialysis CKD group, and 63 in ESRD group. We demonstrated significant differences in the fur thickness (p = 0.045), color (p = 0.005), amounts of ecchymosis (p = 0.010), teeth marks (p = 0.016), and red dot (p < 0.001) among three groups. The areas under receiver operating characteristic curve for the amount of ecchymosis was 0.757 ± 0.055 (95% confidence interval, 0.648-0866; p < 0.001). Additionally, with increase in ecchymosis by one point, the risk of CKD dialysis rose by 1.523 times (95% confidence interval, 1.198-1.936; p = 0.001). After hemodialysis, the amount of saliva (p = 0.038), the area of saliva (p = 0.048) and the number of red dots (p = 0.040) were decreased significantly among patients with ESRD. On the contrary, the percentage of coating (p = 0.002) and area of coating (p = 0.026) were increased significantly after hemodialysis. CONCLUSION: Blood deficiency and stasis with qi deficiency or blood heat syndrome (Zheng pattern) is common in patients with CKD. The risk of CKD dialysis increases with increasing ecchymosis. Hemodialysis can affect saliva, tongue coating, and relieve heat syndrome among ESRD patients.


Assuntos
Falência Renal Crônica , Insuficiência Renal Crônica , Masculino , Humanos , Feminino , Estudos Transversais , Equimose , Insuficiência Renal Crônica/diagnóstico , Língua , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Diálise Renal
20.
J Clin Med ; 12(3)2023 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-36769758

RESUMO

BACKGROUND: Assessment of renal size is clinically significant for the screening, diagnosis, and follow-up of renal diseases as the basis of clinical decisions. However, the relationship of renal dimension with age, body indices, and the estimated glomerular filtration rate (eGFR) has rarely been reported in the Chinese type 1 diabetes mellitus (T1DM) population. METHODS: A total of 220 T1DM patients were retrospectively analyzed from the Chang Gung Research Database in Taiwan. Demographic data, laboratory data, and ultrasonographic images from January 2001 to November 2018 were extracted. RESULTS: Eighty-five participants (38.6%) were male. The mean age was 34.2 years. The median eGFR was 60.0 mL/min/1.73 m2. The mean ultrasonographic left and right renal lengths (LL and RL) with S.D. were 10.9 ± 1.5 cm and 11.0 ± 1.1 cm, respectively. Renal lengths were longer with increasing body height and body weight but shorter with increasing age in patients with T1DM. In trajectory analysis, a linear mixed model revealed no significant trend in the changes in eGFR during the follow-up period. Moreover, renal length did not play a significant role in predicting KDIGO CKD stage 5 in the cohort. CONCLUSIONS: Renal length and its comparison to the reference ranges demonstrated very limited advantages in predicting renal function decline in T1DM patients.

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