Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 129
Filtrar
1.
BMC Cancer ; 24(1): 211, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38360680

RESUMO

BACKGROUND: Lung cancer significantly impairs exercise capacity and health-related quality of life (HRQL). Pulmonary rehabilitation (PR) has demonstrated positive effects on exercise capacity and HRQL in lung cancer patients. However, its impact on cardiopulmonary function needs further exploration. The aim of this study was to explore the effects of PR on cardiopulmonary function, exercise capacity and HRQL in patients with lung cancer. METHODS: Patients with lung cancer were enrolled in a 12-week PR program. Each participant underwent a thorough evaluation, which included spirometry, cardiopulmonary exercise testing, respiratory muscle strength test, and evaluation of HRQL using the Chronic Obstructive Pulmonary Disease Assessment Test (CAT). RESULTS: Fifty-six patients completed the PR program. Following PR, exercise capacity significantly improved, as evidenced by increased peak oxygen uptake and work rate (both p < 0.05). Exertional symptoms were notably reduced, including leg soreness and dyspnea at peak exercise, accompanied by a decrease in the CAT score (all p < 0.05). Furthermore, improvements in cardiopulmonary function were observed, encompassing respiratory muscle strength, ventilatory equivalent, tidal volume, stroke volume index, and cardiac index at peak exercise (all p < 0.05). CONCLUSIONS: PR demonstrated notable enhancements in cardiopulmonary function, exertional symptoms, exercise capacity, and HRQL in patients with lung cancer.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Doença Pulmonar Obstrutiva Crônica , Humanos , Qualidade de Vida , Tolerância ao Exercício/fisiologia , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Dispneia/etiologia , Dispneia/diagnóstico , Teste de Esforço
2.
Postgrad Med J ; 100(1181): 142-150, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38055906

RESUMO

BACKGROUND: Contrast-induced nephropathy has become increasingly prevalent as the age and prevalence of comorbidities in the general population have increased. Most cases of contrast-induced nephropathy are reversible; however, some may progress to acute kidney disease, and subsequently, to chronic kidney disease. Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are known for their renoprotective effects. However, whether the use of these inhibitors affects the risk of contrast-induced kidney injury remains unclear. METHODS: Data were collected from the Taipei Medical University Clinical Research Database. We included patients with diabetes who had contrast exposure between 2016 and 2020 because of computed tomography or coronary angiography. The primary outcome was the risk of a major adverse kidney event (MAKE), which encompassed acute kidney disease, chronic kidney disease progression, and the need for renal replacement therapy. Overlap weighting was performed to reduce the effects of potential confounders. RESULTS: This study included 12 421 patients, who were divided into two groups: SGLT2i users (n = 920) and nonusers (n = 11 501). The follow-up period after contrast exposure was 6 months. The risk of a MAKE was lower in SGLT2i users than in nonusers (incidence, 36.9 vs. 49.9 per 1000 person-months, respectively; P = .0011). Furthermore, the incidence of acute kidney disease or chronic kidney disease progression was significantly lower in the SGLT2i users than in nonusers. However, no significant between-group difference was noted in the incidence of other MAKEs. CONCLUSIONS: SGLT2i may be safely used in diabetic patients needing contrast exposure. The risk of a MAKE may be lower in SGLT2i users than in nonusers.


Assuntos
Diabetes Mellitus Tipo 2 , Insuficiência Renal Crônica , Inibidores do Transportador 2 de Sódio-Glicose , Humanos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/epidemiologia , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Rim , Insuficiência Renal Crônica/induzido quimicamente , Insuficiência Renal Crônica/epidemiologia , Glucose , Sódio , Estudos Retrospectivos
3.
J Formos Med Assoc ; 123(2): 159-178, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37714768

RESUMO

Sleep disordered breathing (SDB) is highly prevalent and may be linked to cardiovascular disease in a bidirectional manner. The Taiwan Society of Cardiology, Taiwan Society of Sleep Medicine and Taiwan Society of Pulmonary and Critical Care Medicine established a task force of experts to evaluate the evidence regarding the assessment and management of SDB in patients with atrial fibrillation (AF), hypertension and heart failure with reduced ejection fraction (HFrEF). The GRADE process was used to assess the evidence associated with 15 formulated questions. The task force developed recommendations and determined strength (Strong, Weak) and direction (For, Against) based on the quality of evidence, balance of benefits and harms, patient values and preferences, and resource use. The resulting 11 recommendations are intended to guide clinicians in determining which the specific patient-care strategy should be utilized by clinicians based on the needs of individual patients.


Assuntos
Fibrilação Atrial , Cardiologia , Insuficiência Cardíaca , Hipertensão , Síndromes da Apneia do Sono , Humanos , Fibrilação Atrial/complicações , Fibrilação Atrial/diagnóstico , Fibrilação Atrial/terapia , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/terapia , Taiwan , Volume Sistólico , Hipertensão/complicações , Hipertensão/diagnóstico , Síndromes da Apneia do Sono/diagnóstico , Síndromes da Apneia do Sono/terapia , Cuidados Críticos , Sono
4.
Anal Chem ; 95(2): 986-993, 2023 01 17.
Artigo em Inglês | MEDLINE | ID: mdl-36580404

RESUMO

The performance of an electrochemiluminescence (ECL) immunosensor was improved with a particle gradient. SiO2-coated magnetic beads were adopted as nanocarriers for gradient manipulation and immobilized with the primary antibody. Cadmium telluride quantum dots were coated with a layer of protein G for conjugation and orientation of the secondary antibody as signal labels. ECL immunosensor gradients on the electrode were formed by magnetolithography (ML) with magnetized nickel masks of column and stripe arrays. The immunosensor generally aggregated as an island on the substrate, leading to a decrease of efficiency in the characteristic signals. Stripe arrays of magnetized nickel were designed to generate cylindrical magnetic flux on the substrate to improve the particle manipulation with the gradient. Various gradients of the sandwich-structured immunosensor substantially affected the electrochemical performance. Compared to the gradient-free immunosensor, the gradient of the immunosensor generated by ML using a 3 µm stripe array mask enhanced the ECL intensity ∼2.2 times. The results of quantification of epithelial cell adhesion molecules (EpCAM) with the gradient immunosensor showed a broad linear range (15-420 pg mL-1), a low limit of detection (5.5 pg mL-1), and high reliability for EpCAM-spiked serum samples, indicating that the immunosensor gradient substantially enhances the performance of the ECL assay.


Assuntos
Técnicas Biossensoriais , Nanopartículas Metálicas , Neoplasias , Biomarcadores Tumorais , Molécula de Adesão da Célula Epitelial , Técnicas Biossensoriais/métodos , Dióxido de Silício/química , Reprodutibilidade dos Testes , Níquel , Imunoensaio/métodos , Anticorpos , Medições Luminescentes/métodos , Limite de Detecção , Técnicas Eletroquímicas/métodos , Nanopartículas Metálicas/química
5.
BMC Cancer ; 23(1): 413, 2023 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-37158884

RESUMO

BACKGROUND: Recent reports suggested combining ramucirumab with epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (TKIs) to overcome EGFR resistance in non-small cell lung cancer (NSCLC). Nonetheless, evidence supporting the activity of afatinib and ramucirumab is lacking. This study investigated the survival benefits and safety profile of afatinib plus ramucirumab in patients with treatment-naïve, EGFR-mutated, metastatic NSCLC. MATERIALS AND METHODS: The medical records of patients with EGFR-mutated NSCLC were retrospectively retrieved. Patients who received first-line sequential afatinib followed by ramucirumab and the first-line combination of afatinib plus ramucirumab were included. The Kaplan-Meier was used to estimate the progression-free survival (PFS) of all included patients, patients on sequential afatinib followed by ramucirumab (PFS1), and patients on the up-front combination of afatinib and ramucirumab (PFS2). RESULTS: Thirty-three patients were included (25 women; median age: 63 [45-82] years). The median follow-up of the included patients was 17 months (range 6-89 months). the median PFS for the whole cohort was 71 months (95% CI 67.2-74.8) with eight events during the follow-up. The median PFS1 and PFS2 were 71 months (95 CI not defined) and 26 months (95% CI 18.6-33.4), respectively. In terms of OS, the median OS for all patients and patients on sequential treatment was not defined, while the median OS for patients on upfront combination was 30 months (95% CI 20.9-39.1). There was no significant association between EGFR mutation type and PFS1 or PFS2. CONCLUSIONS: Afatinib plus ramucirumab could improve the PFS of patients with EGFR-positive NSCLC at a predictable safety profile. Our data also suggest a survival benefit of adding ramucirumab to afatinib in patients with uncommon mutations, which should be investigated further.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Humanos , Feminino , Pessoa de Meia-Idade , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/genética , Afatinib/uso terapêutico , Estudos Retrospectivos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/genética , Receptores ErbB/genética , Ramucirumab
6.
Int J Mol Sci ; 24(8)2023 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-37108160

RESUMO

Tumor necrosis factor superfamily 14 (TNFSF14) is also known as the LT-related inducible ligand (LIGHT). It can bind to the herpesvirus invasion mediator and lymphotoxin-ß receptor to perform its biological activity. LIGHT has multiple physiological functions, including strengthening the synthesis of nitric oxide, reactive oxygen species, and cytokines. LIGHT also stimulates angiogenesis in tumors and induces the synthesis of high endothelial venules; degrades the extracellular matrix in thoracic aortic dissection, and induces the expression of interleukin-8, cyclooxygenase-2, and cell adhesion molecules in endothelial cells. While LIGHT induces tissue inflammation, its effects on angiogenesis after tissue ischemia are unclear. Thus, we analyzed these effects in the current study. In this study, the animal model of hind limb ischemia surgery in C57BL/6 mice was performed. Doppler ultrasound, immunohistochemical staining, and Western blotting were employed to analyze the situation of angiogenesis. In addition, human endothelial progenitor cells (EPCs) were used for in vitro studies to analyze the possible mechanisms. The results in the animal study showed that LIGHT injection inhibited angiogenesis in ischemic limbs. For the in vitro studies, LIGHT inhibited the expression of integrins and E-selectin; decreased migration and tube formation capabilities, mitochondrial respiration, and succinate dehydrogenase activity; and promoted senescence in EPCs. Western blotting revealed that the impairment of EPC function by LIGHT may be due to its effects on the proper functioning of the intracellular Akt signaling pathway, endothelial nitrite oxide synthase (eNOS), and mitochondrial respiration. In conclusion, LIGHT inhibits angiogenesis after tissue ischemia. This may be related to the clamped EPC function.


Assuntos
Células Progenitoras Endoteliais , Membro 14 da Superfamília de Ligantes de Fatores de Necrose Tumoral , Animais , Humanos , Camundongos , Movimento Celular , Células Progenitoras Endoteliais/metabolismo , Isquemia/metabolismo , Camundongos Endogâmicos C57BL , Neovascularização Patológica/patologia , Neovascularização Fisiológica , Óxido Nítrico Sintase Tipo III/metabolismo , Fator de Necrose Tumoral alfa/farmacologia , Membro 14 da Superfamília de Ligantes de Fatores de Necrose Tumoral/metabolismo
7.
Acta Cardiol Sin ; 39(5): 695-708, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37720401

RESUMO

Coronavirus Disease 2019 (COVID-19) has been associated with a high thromboembolic risk among patients in intensive care units. Asian populations may share a similar thromboembolic risk, but with a higher prevalence of arterial thromboembolism than venous thromboembolism. To clarify this risk in Taiwan, this single-center retrospective study collected 27 consecutive intensive care unit patients with COVID-19 confirmed by polymerase chain reaction, with a median age of 67.6 years (male 81.5%). Twenty-three patients received prophylactic anticoagulation (85.2%), and there were four bleeding events (14.8%). Nine patients had thromboembolism (33.3%), including three with deep vein thrombosis, two with peripheral artery thromboembolism, and four with ischemic stroke. There were no significant clinical differences between the patients with or without thromboembolism. Initial serum ferritin [adjusted odds ratio (OR): 13.19, 95% confidence interval (CI): 1.01-172.07] and peak serum procalcitonin (adjusted OR: 18.93, 95% CI: 1.08-330.91) were associated with a higher risk of thromboembolism. Furthermore, prophylactic anticoagulation (adjusted OR: 0.01, 95% CI: < 0.001-0.55) was associated with a lower risk of thromboembolism. All cases of deep vein thrombosis and one peripheral artery thromboembolism occurred at intravascular catheter locations. No association between thromboembolism and survival was found (age-adjusted hazard ratio: 0.55, 95% CI: 0.10-2.95). In conclusion, the prevalence of COVID-19 thromboembolism among Taiwanese patients in intensive care units was high, even with prophylactic anticoagulation. Serum ferritin and procalcitonin may identify high-risk populations. Prophylactic anticoagulation may reduce the risk of thromboembolism with a manageable bleeding risk. Larger prospective studies are needed to clarify the risk of COVID-19 thromboembolism and its risk factors in the post-Omicron era.

8.
Acta Cardiol Sin ; 39(1): 97-108, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36685160

RESUMO

Peripheral artery disease (PAD) imposes a heavy burden of major adverse cardiovascular events that are associated with considerable mortality and morbidity, and major adverse limb events (e.g., thrombectomy, revascularization, amputation) that can substantially impact patients' daily functioning and quality of life. Global registry data have indicated that PAD is an underdiagnosed disease in Taiwan, and its associated risk factors remain inadequately controlled. This review discusses the burden of PAD in Taiwan, major guidelines on PAD management, and the latest clinical trial outcomes. Practical experience, opinions, and the latest trial data were integrated to derive a series of clinical algorithms - patient referral, PAD diagnosis, and the antithrombotic management of PAD. These algorithms can be adapted not only by physicians in Taiwan involved in the clinical management of patients with PAD but also by general practitioners in local clinics and regional hospital settings, with the ultimate aim of improving the totality of PAD patient care in Taiwan.

9.
Acta Cardiol Sin ; 39(6): 783-806, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38022422

RESUMO

Cardiac rehabilitation is a comprehensive intervention recommended in international and Taiwanese guidelines for patients with acute myocardial infarction. Evidence supports that cardiac rehabilitation improves the health-related quality of life, enhances exercise capacity, reduces readmission rates, and promotes survival in patients with cardiovascular disease. The cardiac rehabilitation team is comprehensive and multidisciplinary. The inpatient, outpatient, and maintenance phases are included in cardiac rehabilitation. All patients admitted with acute myocardial infarction should be referred to the rehabilitation department as soon as clinically feasible. Pre-exercise evaluation, including exercise testing, helps physicians identify the risks of cardiac rehabilitation and organize appropriate exercise prescriptions. Therefore, the Taiwan Myocardial Infarction Society (TAMIS), Taiwan Society of Cardiology (TSOC), and Taiwan Academy of Cardiovascular and Pulmonary Rehabilitation (TACVPR) address this consensus statement to assist healthcare practitioners in performing cardiac rehabilitation in patients with acute myocardial infarction.

10.
Int J Mol Sci ; 23(9)2022 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-35563285

RESUMO

Skin is an important organ that mainly functions as a barrier. Skin diseases can damage a person's self-confidence and reduce their willingness to socialize, as well as their social behavior and willingness. When the skin appearance is abnormal, in addition to affecting the quality of life, it often leads to personal, social, and psychological dysfunction and even induces depression. Psoriasis and atopic dermatitis are common chronic skin diseases. Their prevalence in the world is 3-10%, and there is an increasing trend year by year. These congenital or acquired factors cause the dysfunction of the immune system and then destroy the barrier function of the skin. Because these patients are flooded with a variety of inflammatory mediators, this causes skin cells to be in chronic inflammation. Therefore, psoriasis and atopic dermatitis are also considered systemic chronic inflammatory diseases. In the healthcare systems of developed countries, it is unavoidable to spend high costs to relieve symptoms of psoriasis and atopic dermatitis patients, because psoriasis and atopic dermatitis have a great influence on individuals and society. Giving a lot of attention and developing effective treatment methods are the topics that the medical community must work on together. Therefore, we used a narrative review manuscript to discuss pathogenesis, clinical classification, incidence, and treatment options, including topical medication, systemic therapeutics, immunosuppressive medication for psoriasis, and atopic dermatitis, as well as also comparing the differences between these two diseases. We look forward to providing readers with comprehensive information on psoriasis and atopic dermatitis through this review article.


Assuntos
Dermatite Atópica , Psoríase , Dermatopatias , Doença Crônica , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/terapia , Humanos , Psoríase/epidemiologia , Psoríase/etiologia , Psoríase/terapia , Qualidade de Vida , Pele/patologia
11.
Crit Care ; 25(1): 402, 2021 Nov 18.
Artigo em Inglês | MEDLINE | ID: mdl-34794502

RESUMO

BACKGROUND: This study investigated temporal trends in the treatment and mortality of patients with cardiogenic shock (CS) in Taiwan in relation to acute myocardial infarction (AMI) accreditation implemented in 2009 and the unavailability of percutaneous ventricular assist devices. METHODS: Data of patients diagnosed as having CS between January 2003 and December 2017 were collected from Taiwan's National Health Insurance Research Database. Each case was followed from the date of emergency department arrival or hospital admission for the first incident associated with a CS diagnosis up to a 1-year interval. Measurements included demographics, comorbidities, treatment, mortality, and medical costs. Using an interrupted time-series (ITS) design with multi-level mixed-effects logistic regression model, we assessed the impact of AMI accreditation implementation on the mortality of patients with AMI and CS overall and stratified by the hospital levels. RESULTS: In total, 64 049 patients with CS (mean age:70 years; 62% men) were identified. The incidence rate per 105 person-years increased from 17 in 2003 to 25 in 2010 and plateaued thereafter. Average inpatient costs increased from 159 125 points in 2003 to 240 993 points in 2017, indicating a 1.5-fold increase. The intra-aortic balloon pump application rate was approximately 22-25% after 2010 (p = 0.093). Overall, in-hospital, 30-day, and 1-year mortality declined from 60.3%, 63.0%, and 69.3% in 2003 to 47.9%, 50.8% and 59.8% in 2017, respectively. The decline in mortality was more apparent in patients with AMI-CS than in patients with non-AMI-CS. The ITS estimation revealed a 2% lower in-hospital mortality in patients with AMI-CS treated in district hospitals after the AMI accreditation had been implemented for 2 years. CONCLUSIONS: In Taiwan, the burden of CS has consistently increased due to high patient complexity, advanced therapies, and stable incidence. Mortality declined over time, particularly in patients with AMI-CS, which may be attributable to advancements in AMI therapies and this quality-improving policy.


Assuntos
Choque Cardiogênico , Acreditação , Idoso , Feminino , Coração Auxiliar/provisão & distribuição , Humanos , Masculino , Mortalidade/tendências , Infarto do Miocárdio , Choque Cardiogênico/mortalidade , Choque Cardiogênico/terapia , Taiwan/epidemiologia
12.
Cardiovasc Drugs Ther ; 35(6): 1111-1127, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-32623597

RESUMO

PURPOSE: Chronic rejection induces the occurrence of orthotopic allograft transplantation (OAT) vasculopathy, which results in failure of the donor organ. Numerous studies have demonstrated that in addition to regulating blood sugar homeostasis, dipeptidyl peptidase-4 (DPP-4) inhibitors can also provide efficacious therapeutic and protective effects against cardiovascular diseases. However, their effects on OAT-induced vasculopathy remain unknown. Thus, the aim of this study was to investigate the direct effects of sitagliptin on OAT vasculopathy in vivo and in vitro. METHODS: The PVG/Seac rat thoracic aorta graft to ACI/NKyo rat abdominal aorta model was used to explore the effects of sitagliptin on vasculopathy. Human endothelial progenitor cells (EPCs) were used to investigate the possible underlying mechanisms. RESULTS: We demonstrated that sitagliptin decreases vasculopathy in OAT ACI/NKyo rats. Treatment with sitagliptin decreased BNP and HMGB1 levels, increased GLP-1 activity and stromal cell-derived factor 1α (SDF-1α) expression, elevated the number of circulating EPCs, and improved the differentiation possibility of mononuclear cells to EPCs ex vivo. However, in vitro studies showed that recombinant B-type natriuretic peptide (BNP) and high mobility group box 1 (HMGB1) impaired EPC function, whereas these phenomena were reversed by glucagon-like peptide 1 (GLP-1) receptor agonist treatment. CONCLUSIONS: We suggest that the mechanisms underlying sitagliptin-mediated inhibition of OAT vasculopathy probably occur through a direct increase in GLP-1 activity. In addition to the GLP-1-dependent pathway, sitagliptin may regulate SDF-1α levels and EPC function to reduce OAT-induced vascular injury. This study may provide new prevention and treatment strategies for DPP-4 inhibitors in chronic rejection-induced vasculopathy.


Assuntos
Aorta Torácica/transplante , Inibidores da Dipeptidil Peptidase IV/farmacologia , Células Progenitoras Endoteliais/efeitos dos fármacos , Hipoglicemiantes/farmacologia , Fosfato de Sitagliptina/farmacologia , Doenças Vasculares/fisiopatologia , Animais , Quimiocina CXCL12/efeitos dos fármacos , Peptídeo 1 Semelhante ao Glucagon/efeitos dos fármacos , Proteína HMGB1/efeitos dos fármacos , Masculino , Peptídeo Natriurético Encefálico/efeitos dos fármacos , Ratos , Ratos Endogâmicos ACI , Transplante Homólogo
13.
BMC Cardiovasc Disord ; 21(1): 77, 2021 02 08.
Artigo em Inglês | MEDLINE | ID: mdl-33557763

RESUMO

BACKGROUND: Patients who receive percutaneous coronary intervention (PCI) have different chances of developing in-stent restenosis (ISR). To date, no predictable biomarker can be applied in the clinic. MicroRNAs (miRNAs or miRs) play critical roles in transcription regulation, and their circulating levels were reported to have potential as clinical biomarkers. METHODS: In total, 93 coronary stent-implanted patients without pregnancy, liver or renal dysfunction, malignancy, hemophilia, or autoimmune diseases were recruited in this clinical study. All recruited participants were divided into an ISR group (n = 45) and a non-ISR group (n = 48) based on their restenotic status as confirmed by cardiologists at the first follow-up visit (6 months after surgery). Blood samples of all participants were harvested to measure circulating levels of miRNA candidates (miR-132, miR-142-5p, miR-15b, miR-24-2, and miR-424) to evaluate whether these circulating miRNAs can be applied as predictive biomarkers of ISR. RESULTS: Our data indicated that circulating levels of miR-142-5p were significantly higher in the ISR population, and results from the receiver operating characteristic (ROC) curve analysis also demonstrated superior discriminatory ability of miR-142-5p in predicting patients' restenotic status. In addition, circulating levels of miR-15b, miR-24-2, and miR-424 had differential expressions in participants with diabetes, hyperlipidemia, and hypertension, respectively. CONCLUSIONS: The current study revealed that the circulating level of miR-142-5p has potential application as a clinical biomarker for predicting the development of ISR in stent-implanted patients.


Assuntos
MicroRNA Circulante/sangue , Doença da Artéria Coronariana/terapia , Reestenose Coronária/sangue , MicroRNAs/sangue , Intervenção Coronária Percutânea/instrumentação , Stents , Idoso , Biomarcadores/sangue , Estudos de Casos e Controles , MicroRNA Circulante/genética , Reestenose Coronária/diagnóstico , Reestenose Coronária/etiologia , Feminino , Humanos , Masculino , MicroRNAs/genética , Pessoa de Meia-Idade , Intervenção Coronária Percutânea/efeitos adversos , Valor Preditivo dos Testes , Fatores de Risco , Taiwan , Resultado do Tratamento , Regulação para Cima
14.
Int J Med Sci ; 18(16): 3861-3869, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34790062

RESUMO

Background: There are no uniform guidelines on low-dose computed tomography (LDCT) follow-up in lung cancer screening. Few studies have analyzed the incidental abnormalities and role of tumor markers in lung cancer screening. The purpose of this study was to investigate the diagnostic performance of LDCT, optimal follow-up duration, incidental findings, and role of tumor markers in diagnosing lung cancer. Methods: We retrospectively analyzed subjects who underwent their first LDCT in Taipei Tzu Chi Hospital between September 1, 2015, and August 31, 2016. All chest CT scans until August 31, 2020, were recorded. A non-calcified nodule with a diameter ≥2 mm on LDCT was defined as a positive result. We extracted the data, including possible risk factors of lung cancer and follow-up outcomes. Results: A total of 1502 subjects were recruited. Of the 38 subjects who underwent biopsy, 31 had confirmed lung cancer. Lung cancer in all patients was diagnosed within 4 years. Univariate logistic regression analysis revealed that a family history of lung cancer in first-degree relatives and abnormal serum carcinoembryonic antigen (CEA) levels were the significant risk factors for lung cancer. A cumulative lung cancer incidence of 54.7 patients per 1000 person-years was determined solely via radiological follow-up. In total, 271 (18%) subjects exhibited incidental findings on baseline LDCT. Conclusion: The overall lung cancer detection rate in this study was 2.1% in the 5-year study period. A family history of lung cancer and abnormal serum CEA levels are important risk factors for lung cancer. A minimum of 4-year follow-up is required to track suspicious nodules. A purely radiological follow-up detects a high incidence of lung cancer.


Assuntos
Detecção Precoce de Câncer , Neoplasias Pulmonares/diagnóstico , Idoso , Detecção Precoce de Câncer/estatística & dados numéricos , Feminino , Humanos , Neoplasias Pulmonares/epidemiologia , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taiwan/epidemiologia , Fatores de Tempo , Tomografia Computadorizada por Raios X
15.
Int J Mol Sci ; 22(10)2021 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-34069162

RESUMO

Therapeutic elevation of high-density lipoprotein (HDL) is thought to minimize atherogenesis in subjects with dyslipidemia. However, this is not the case in clinical practice. The function of HDL is not determined by its concentration in the plasma but by its specific structural components. We previously identified an index for the prediction of HDL functionality, relative HDL (rHDL) index, and preliminarily explored that dysfunctional HDL (rHDL index value > 2) failed to rescue the damage to endothelial progenitor cells (EPCs). To confirm the effectiveness of the rHDL index for predicting HDL functions, here we evaluated the effects of HDL from patients with different rHDL index values on the endothelial-mesenchymal transition (EndoMT) of EPCs. We also analyzed the lipid species in HDL with different rHDL index values and investigated the structural differences that affect HDL functions. The results indicate that HDL from healthy adults and subjects with an rHDL index value < 2 protected transforming growth factor (TGF)-ß1-stimulated EndoMT by modulating Smad2/3 and Snail activation. HDL from subjects with an rHDL index value > 2 failed to restore the functionality of TGF-ß1-treated EPCs. Lipidomic analysis demonstrated that HDL with different rHDL index values may differ in the composition of triglycerides, phosphatidylcholine, and phosphatidylinositol. In conclusion, we confirmed the applicability of the rHDL index value to predict HDL function and found structural differences that may affect the function of HDL, which warrants further in-depth studies.


Assuntos
Células Progenitoras Endoteliais/metabolismo , Lipoproteínas HDL/química , Lipoproteínas HDL/metabolismo , Idoso , Dislipidemias/sangue , Células Progenitoras Endoteliais/efeitos dos fármacos , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Lipoproteínas HDL/farmacologia , Masculino , Pessoa de Meia-Idade , Fosfatidilcolinas/sangue , Fosfatidilcolinas/química , Fosfatidilinositóis/sangue , Fosfatidilinositóis/química , Proteínas Smad/metabolismo , Fatores de Transcrição da Família Snail/metabolismo , Fator de Crescimento Transformador beta1/farmacologia , Triglicerídeos/sangue , Triglicerídeos/química , Adulto Jovem
16.
Molecules ; 26(17)2021 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-34500771

RESUMO

Vincristine is a clinically used antimicrotubule drug for treating patients with lymphoma. Due to its property of increasing platelet counts, vincristine is also used to treat patients with immune thrombocytopenia. Moreover, antiplatelet agents were reported to be beneficial in thrombotic thrombocytopenic purpura (TTP). Therefore, we investigated the detailed mechanisms underlying the antiplatelet effect of vincristine. Our results revealed that vincristine inhibited platelet aggregation induced by collagen, but not by thrombin, arachidonic acid, and the thromboxane A2 analog U46619, suggesting that vincristine exerts higher inhibitory effects on collagen-mediated platelet aggregation. Vincristine also reduced collagen-mediated platelet granule release and calcium mobilization. In addition, vincristine inhibited glycoprotein VI (GPVI) signaling, including Syk, phospholipase Cγ2, protein kinase C, Akt, and mitogen-activated protein kinases. In addition, the in vitro PFA-100 assay revealed that vincristine did not prolong the closure time, and the in vivo study tail bleeding assay showed that vincristine did not prolong the tail bleeding time; both findings suggested that vincristine may not affect normal hemostasis. In conclusion, we demonstrated that vincristine exerts antiplatelet effects at least in part through the suppression of GPVI signaling. Moreover, this property of antiplatelet activity of vincristine may provide additional benefits in the treatment of TTP.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Plaquetas/efeitos dos fármacos , Neoplasias/tratamento farmacológico , Trombocitopenia/tratamento farmacológico , Vincristina/farmacologia , Antineoplásicos Fitogênicos/química , Plaquetas/imunologia , Colágeno/antagonistas & inibidores , Colágeno/farmacologia , Humanos , Conformação Molecular , Neoplasias/imunologia , Agregação Plaquetária/efeitos dos fármacos , Trombocitopenia/imunologia , Vincristina/química
17.
Geriatr Nurs ; 42(6): 1309-1315, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34560525

RESUMO

Various individual characteristics may affect medication adherence; however, few studies have investigated the effect of interrelationships among these various individual characteristics on medication adherence. This cross-sectional study explored the interrelationships among risk factors for medication adherence and established a predictive model of low medication adherence among older adults with hypertension. Convenience sampling was used to recruit 300 older adults with hypertension. The following parameters were recorded: demographic and disease characteristics, health beliefs, self-efficacy, social support, and medication adherence of antihypertensive drugs. Classification and regression tree (CART) analysis was performed to develop a predictive model of low medication adherence. The CART model revealed that health belief, disease duration, self-efficacy, and social support interacted to contribute to various pathways of low medication adherence. The predicted accuracy of the model was validated with a low misclassification rate of 26%. The proposed classification model can help identify risk cases with low medication adherence. Suitable health education programs based on these risk factors to manage and improve medication adherence for older adults with hypertension could be considered.


Assuntos
Hipertensão , Idoso , Anti-Hipertensivos/uso terapêutico , Estudos Transversais , Humanos , Hipertensão/tratamento farmacológico , Adesão à Medicação , Autoeficácia
18.
Arterioscler Thromb Vasc Biol ; 39(6): 1240-1252, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30943772

RESUMO

Objective- Basic research indicates that TNFSF14 (tumor necrosis factor superfamily 14) may be involved in the pathogenesis of atherosclerosis. Given the requirements of new biomarkers for risk classification in coronary artery disease (CAD), we conducted a longitudinal analysis to investigate if TNFSF14 levels are associated with the risk of cardiovascular events among patients with stable CAD. Approach and Results- In total, 894 patients with CAD were enrolled in a multicenter prospective study. The primary outcome was the occurrence of cardiovascular death, nonfatal myocardial infarction, and stroke. The secondary outcome was the occurrence of all-cause death, nonfatal myocardial infarction, stroke, revascularization, and hospitalization because of angina or heart failure. During the mean follow-up period of 22±9 months, 32 patients reached the primary outcome and 166 patients reached the secondary outcome. Kaplan-Meier analysis showed that the event-free survival was significantly different in the first and fourth quartile groups in subjects categorized by TNFSF14 levels. In multivariate Cox proportional hazard regression analysis, TNFSF14 was independently associated with the risk of cardiovascular events after adjustment for various relevant factors (adjusted hazard ratio, 1.14; 95% CI, 1.04-1.25). In the validation cohort of 126 multivessel patients with CAD, TNFSF14 was confirmed to provide good prognostic predictive value for composite cardiovascular events (adjusted hazard ratio, 1.11; 95% CI, 1.04-1.19). Conclusions- This is the first study to demonstrate that increased TNFSF14 levels were independently associated with the occurrence of cardiovascular events in patients with stable CAD. Future studies are worthy to validate if TNFSF14 could be a novel prognostic biomarker for CAD outcomes over different populations.


Assuntos
Doença da Artéria Coronariana/sangue , Membro 14 da Superfamília de Ligantes de Fatores de Necrose Tumoral/sangue , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Causas de Morte , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/terapia , Progressão da Doença , Feminino , Hospitalização , Humanos , Incidência , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/sangue , Infarto do Miocárdio/mortalidade , Revascularização Miocárdica , Intervalo Livre de Progressão , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Acidente Vascular Cerebral/sangue , Acidente Vascular Cerebral/mortalidade , Taiwan/epidemiologia , Fatores de Tempo , Regulação para Cima
19.
Int J Mol Sci ; 21(3)2020 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-32013194

RESUMO

The association between psoriasis and cardiovascular disease risk has been supported by recent epidemiological data. Patients with psoriasis have an increased adjusted relative risk for myocardial infarction. As such, the cardiovascular risk conferred by severe psoriasis may be comparable to what is seen with other well-established risk factors, such as diabetes mellitus. Previous studies demonstrated that low-density lipoprotein (LDL) plays critical roles during atherogenesis. It may be caused by the accumulation of macrophages and lipoprotein in the vessel wall. Oxidized LDL (ox-LDL) stimulates the expression of adhesion molecules, such as ICAM-1 and VCAM-1, on endothelial cells and increases the attachment of mononuclear cells and the endothelium. Even though previous evidence demonstrated that psoriasis patients have tortuous and dilated blood vessels in the dermis, which results in the leakage of ox-LDL, the leaked ox-LDL may increase the expression of adhesion molecules and cytokines, and disturb the static balance of osmosis. Therefore, exploration of the relationship between hyperlipidemia and psoriasis may be another novel treatment option for psoriasis and may represent the most promising strategy.


Assuntos
Hiperlipidemias/metabolismo , Lipoproteínas LDL/metabolismo , Psoríase/metabolismo , Adesão Celular , Citocinas/biossíntese , Regulação da Expressão Gênica , Humanos , Hiperlipidemias/patologia , Molécula 1 de Adesão Intercelular/biossíntese , Psoríase/patologia , Molécula 1 de Adesão de Célula Vascular/biossíntese
20.
Acta Cardiol Sin ; 36(6): 595-602, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33235415

RESUMO

BACKGROUND: Risk score is widely used in non-ST segment elevation myocardial infarction (NSTEMI) patients to predict the in-hospital outcome for immediate coronary angiography decision and care of unit selection. OBJECTIVES: This study compared the performances of the thrombolysis in myocardial infarction (TIMI), Global Registry of Acute Coronary Events (GRACE), Primary Angioplasty in Myocardial Infarction (PAMI), and Revised Controlled Abciximab and Device Investigation to Lower Late Angioplasty Complications (Revised CADILLAC) risk scores in predicting in-hospital and long-term outcomes in diabetic NSTEMI patients. METHODS: A total of 750 diabetic NSTEMI patients from 27 hospitals were enrolled between January 2013 and December 2015 in the nationwide registry initiated by the Taiwan Society of Cardiology. Four score systems were calculated with receiver operator characteristic analysis used to compare outcome discrimination performance. RESULTS: No studied risk scores reached acceptable discrimination per area under curve (AUC) in the prediction of in-hospital outcome except for the revised CADILLAC score which reached acceptable discrimination in new-onset cardiogenic shock (AUC = 0.7191) and acute renal failure (AUC = 0.7283). In long-term outcomes, only the revised CADILLAC score reached acceptable discrimination of mortality prediction at 6, 12 and 24 months (AUC = 0.7261 at 6 months, 0.7319 at 12 months, and 0.7256 at 24 months). Subgroup analysis based on the revised CADILLAC score risk class showed a significant difference in adjusted mortality rate between low-risk group/intermediate-risk group and high-risk group. CONCLUSIONS: Only the revised CADILLAC score showed acceptable accuracy to predict the long-term mortality outcome among the scores studied.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA