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1.
Acta Cardiol Sin ; 40(1): 1-44, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38264067

RESUMO

The Taiwan Society of Cardiology (TSOC) and Taiwan Society of Plastic Surgery (TSPS) have collaborated to develop a joint consensus for the management of patients with advanced vascular wounds. The taskforce comprises experts including preventive cardiologists, interventionists, and cardiovascular and plastic surgeons. The consensus focuses on addressing the challenges in diagnosing, treating, and managing complex wounds; incorporates the perfusion evaluation and the advanced vascular wound care team; and highlights the importance of cross-disciplinary teamwork. The aim of this joint consensus is to manage patients with advanced vascular wounds and encourage the adoption of these guidelines by healthcare professionals to improve patient care and outcomes. The guidelines encompass a range of topics, including the definition of advanced vascular wounds, increased awareness, team structure, epidemiology, clinical presentation, medical treatment, endovascular intervention, vascular surgery, infection control, advanced wound management, and evaluation of treatment results. It also outlines a detailed protocol for assessing patients with lower leg wounds, provides guidance on consultation and referral processes, and offers recommendations for various wound care devices, dressings, and products. The 2024 TSOC/TSPS consensus for the management of patients with advanced vascular wounds serves as a catalyst for international collaboration, promoting knowledge exchange and facilitating advancements in the field of advanced vascular wound management. By providing a comprehensive and evidence-based approach, this consensus aims to contribute to improved patient care and outcomes globally.

2.
Front Med (Lausanne) ; 9: 1001979, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36213639

RESUMO

Background: Despite patients with severe coronavirus disease (COVID-19) receiving standard triple therapy, including steroids, antiviral agents, and anticytokine therapy, health condition of certain patients continue to deteriorate. In Taiwan, the COVID-19 mortality has been high since the emergence of previous variants of this disease (such as alpha, beta, or delta). We aimed to evaluate whether adjunctive infusion of human umbilical cord mesenchymal stem cells (MSCs) (hUC-MSCs) on top of dexamethasone, remdesivir, and tocilizumab improves pulmonary oxygenation and suppresses inflammatory cytokines in patients with severe COVID-19. Methods: Hospitalized patients with severe or critical COVID-19 pneumonia under standard triple therapy were separated into adjuvant hUC-MSC and non-hUC-MSC groups to compare the changes in the arterial partial pressure of oxygen (PaO2)/fraction of inspired oxygen (FiO2) ratio and biological variables. Results: Four out of eight patients with severe or critical COVID-19 received either one (n = 2) or two (n = 2) doses of intravenous infusions of hUC-MSCs using a uniform cell dose of 1.0 × 108. Both high-sensitivity C-reactive protein (hs-CRP) level and monocyte distribution width (MDW) were significantly reduced, with a reduction in the levels of interleukin (IL)-6, IL-13, IL-12p70 and vascular endothelial growth factor following hUC-MSC transplantation. The PaO2/FiO2 ratio increased from 83.68 (64.34-126.75) to 227.50 (185.25-237.50) and then 349.56 (293.03-367.92) within 7 days after hUC-MSC infusion (P < 0.001), while the change of PaO2/FiO2 ratio was insignificant in non-hUC-MSC patients (admission day: 165.00 [102.50-237.61]; day 3: 100.00 [72.00-232.68]; day 7: 250.00 [71.00-251.43], P = 0.923). Conclusion: Transplantation of hUC-MSCs as adjunctive therapy improves pulmonary oxygenation in patients with severe or critical COVID-19. The beneficial effects of hUC-MSCs were presumably mediated by the mitigation of inflammatory cytokines, characterized by the reduction in both hs-CRP and MDW.

3.
J Microbiol Immunol Infect ; 55(6 Pt 2): 1283-1292, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36117089

RESUMO

The characteristics, risk factors, microbial distributions and effective treatment regimens for Chronic suppurative otitis media (CSOM) patients intractable to empirical therapy were analyzed. Adult CSOM patients of China Medical University Hospital from 2018 to 2020 were included. Subjects of refractory and non-refractory groups were investigated for characteristics of age, sex, nation, comorbidities, otomycosis, and associated complications. Risk factors, microbiology distributions, and treatment regimens were analyzed. Twenty-six refractory patients (55.0 ± 17.7 years) and 66 non-refractory patients (54.1 ± 13.7 years) were studied. A significantly higher rate of otomycosis and CSOM complications was observed in refractory group than in non-refractory one (73.1% vs. 36.4%; p = 0.002; 57.7% vs. 10.6%, p < 0.001, respectively). Multivariate analysis revealed atopic diathesis (p = 0.048), otomycosis (p = 0.003) and CSOM complications (p < 0.001) were risk factors of refractory CSOM. Coagulase-negative staphylococci (CoNS) and methicillin-resistant Staphylococcus aureus (MRSA) were the prevailing pathogens. Patients of refractory group tented to have higher rates of mixed infection (42.9%% vs. 23.7%) and significantly more included fungal pathogen (19.0% vs. 2.6%; p = 0.049) than those of non-refractory cohort. Topical treatment of fungus significantly improved outcome of refractory CSOM. Atopic diathesis, otomycosis, and CSOM-associated complications were risk factors of refractory CSOM. Systemic and local treatment to possible drug-resistant pathogens, likely CoNS and fungus, possible improves recalcitrant CSOM. Correspondingly, early identification of CSOM complications, routine culture and susceptibility testing and treatment of resistant bacteria and fungus are key elements to the successful management of adult CSOM.


Assuntos
Coinfecção , Staphylococcus aureus Resistente à Meticilina , Otite Média Supurativa , Otomicose , Humanos , Adulto , Otite Média Supurativa/tratamento farmacológico , Otite Média Supurativa/microbiologia , Antibacterianos/uso terapêutico , Otomicose/tratamento farmacológico , Coinfecção/tratamento farmacológico , Suscetibilidade a Doenças , Doença Crônica , Staphylococcus
4.
Semin Dial ; 35(4): 317-324, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35107185

RESUMO

INTRODUCTION: This study aimed to investigate the risks of central nervous system (CNS) infections and related mortality in patients with end-stage renal disease (ESRD) undergoing dialysis. METHODS: Incident dialysis patients were identified from 2000 to 2013. The risks of CNS infection and related mortality were analyzed. RESULTS: The adjusted hazard ratio (HR) of CNS infection in the ESRD group compared with the control group was 3.46 (95% confidence interval [CI] 2.75-4.35). The adjusted odds ratio (OR) of 90-day mortality following CNS infections in the ESRD group in comparison with the control group was 5.99 (95% CI 2.78-12.9). The adjusted HR of overall CNS infection for the peritoneal dialysis (PD) group in comparison with the hemodialysis (HD) group was 1.07 (95% CI 0.63-1.82). Influenza vaccination was associated with a lower risks of CNS infection in dialysis patients (adjusted HR: 0.38, 95% CI 0.30-0.48). The adjusted OR of 90-day mortality following CNS infection for the PD group in comparison with the HD group was 1.01 (95% CI 0.55-1.87). CONCLUSIONS: The risks of CNS infections and related mortality were remarkably high in dialysis patients with no significant difference between patients with ESRD under HD and PD treatment.


Assuntos
Infecções do Sistema Nervoso Central , Falência Renal Crônica , Diálise Peritoneal , Infecções do Sistema Nervoso Central/complicações , Infecções do Sistema Nervoso Central/etiologia , Humanos , Falência Renal Crônica/complicações , Diálise Peritoneal/efeitos adversos , Pontuação de Propensão , Diálise Renal/efeitos adversos , Fatores de Risco
5.
Int J Clin Pract ; 75(12): e14776, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34510649

RESUMO

BACKGROUND: We aimed to identify associations between the risk of acute respiratory failure (ARF) and types of antihypertensive agents in patients with viral pneumonia. METHODS: In this case-control study, data extracted from the Taiwan National Health Insurance Research Database were analysed. The base population comprised patients with viral pneumonia treated from 2000 to 2013. The case group comprised patients with ARF and the control group comprised participants without ARF. Adjusted odds ratios (ORs) were calculated using a multivariable logistic regression model. RESULTS: In total, 4427 viral pneumonia patients with ARF and 4427 matched control participants without ARF were recruited. Patients with diabetes, alcohol-related disease, asthma, chronic kidney disease or end-stage renal disease, chronic obstructive pulmonary disease, cancer, congestive heart failure, stroke, acute pulmonary oedema and shock had increased odds of developing ARF, especially shock (adjusted OR = 49.3; 95% CI = 27.4, 88.7), cancer (12.6; 8.67, 18.2) and stroke (7.51; 5.32, 10.6). Increasing odds of developing ARF were noted in patients using potassium-sparing diuretics (2.95; 1.54, 5.64), loop diuretics (68.2; 48.1, 96.6), calcium channel blockers (1.64; 1.26, 2.13) and angiotensin-converting enzyme inhibitors (1.70; 1.15, 2.53). Patients with prescriptions of α-blockers (0.44; 0.26, 0.74), ß-blockers (0.37; 0.26, 0.52), thiazides (0.38; 0.25, 0.59) and angiotensin receptor blockers (0.65; 0.51, 0.83) had lower odds of having ARF. CONCLUSION: Patients with viral pneumonia who received α-blockers, ß-blockers, thiazides or angiotensin receptor blockers during hospitalisation had a lower risk of developing ARF.


Assuntos
Hipertensão , Pneumonia Viral , Insuficiência Respiratória , Antagonistas de Receptores de Angiotensina/uso terapêutico , Anti-Hipertensivos/uso terapêutico , Bloqueadores dos Canais de Cálcio/uso terapêutico , Estudos de Casos e Controles , Hospitalização , Humanos , Hipertensão/tratamento farmacológico , Pneumonia Viral/tratamento farmacológico , Insuficiência Respiratória/epidemiologia , Insuficiência Respiratória/etiologia
6.
J Microbiol Immunol Infect ; 54(5): 794-800, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33610511

RESUMO

BACKGROUND: Coronavirus Disease 2019 (COVID-19) is rapidly transmitted from person to person, causing global pandemic since December 2019. Instantly detecting COVID-19 is crucial for epidemic prevention. In this study, olfactory dysfunction is a significant symptom in mild to moderate COVID-19 patients but relatively rare in other respiratory viral infections. The Taiwan smell identification test (TWSIT) is a speedy and inexpensive option for accurately distinguishing anosmia that also quantifies the degree of anosmia. Using TWSIT in the outpatient clinic for early identifying the patients with mild to moderate COVID-19 can be promising. METHODS: Nineteen patients confirmed COVID-19 in central Taiwan were collected and divided into two groups: olfactory dysfunction and non-olfactory dysfunction. Demographic characteristics, laboratory findings, and the results of the olfactory test were compared between these two groups. FINDINGS: Thirteen (68.4%) of the 19 patients had olfactory dysfunction. The patients with olfactory dysfunction were younger than those without this symptom. The statistical difference in age distribution was significant between these two groups (IQR: 25.5-35.5 vs. IQR: 32.5-60.3; p-value: 0.012). There was no significant difference in gender, smoking history, comorbidities, travel history, respiratory tract infection symptoms, and laboratory findings between these two groups. CONCLUSION: This study demonstrated that young adults were prone to develop olfactory dysfunctions. In the flu season, olfactory dysfunction is considered a specific screening criterion for early detecting COVID-19 in the community. TWSIT can serve as a decent test for quantifying and qualifying olfactory dysfunction.


Assuntos
COVID-19/complicações , COVID-19/etiologia , Transtornos do Olfato/etiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anosmia , COVID-19/epidemiologia , Criança , Diagnóstico Precoce , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos do Olfato/diagnóstico , Transtornos do Olfato/epidemiologia , Pandemias , SARS-CoV-2 , Taiwan/epidemiologia , Adulto Jovem
7.
J Microbiol Immunol Infect ; 54(2): 312-318, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31668794

RESUMO

BACKGROUND: Tuberculosis (TB) is a serious opportunistic infection in liver transplant (LT) recipients with a high rate of morbidity and mortality. This study aims to clarify the frequency and risk factors for tuberculosis in LT recipients. METHODS: A total of 884 LT recipients were investigated retrospectively at China Medical University Hospital, Taichung, Taiwan. We performed a case-control study (1:2) to investigate the potential risk factors and disease onset of TB after LT. RESULTS: Among the 884 LT recipients, 25 of TB cases (2.8%) were reported from 2009 to 2016. The overall incidence of TB was 744 cases per 100,000 patient-year, which was 18-fold higher than the general population in Taiwan. The median time to develop TB after liver transplant was 20 months. Of the TB cases, 15 were pulmonary TB and 10 were extra-pulmonary TB. Five cases of those extra-pulmonary TB occurred in the first post-transplant year. Overall five-year survival rate was 63.3%. Multivariate analyses identified apical fibrotic change in pre-transplant computed tomographic (CT) finding and the exposure to mammalian target of rapamycin (mTOR) inhibitors before TB event as independent risk factors for TB development (Odd ratio (OR) 10.79, 95% confidence interval (CI), 1.73-67.49, p = 0.01; OR 3.847, 95% CI 0.80-18.51, P = 0.09, respectively). CONCLUSION: TB incidence in LT recipients is high in this study. Among those post-transplant recipients with long-term immunosuppression, abnormal CT finding and exposure to mTOR inhibitors before liver transplant might be the risk factors for TB.


Assuntos
Transplante de Fígado/efeitos adversos , Centros de Atenção Terciária , Tuberculose/epidemiologia , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Serina-Treonina Quinases TOR/efeitos dos fármacos , Taiwan/epidemiologia , Transplantados , Tuberculose Pulmonar/epidemiologia
8.
J Microbiol Immunol Infect ; 53(3): 459-466, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32220574

RESUMO

BACKGROUND: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CO-V-2), was first reported in Wuhan, Hubei province, China has now rapidly spread over 50 countries. For the prevention and control of infection, Taiwan Centers for Disease Control initiated testing of SARS-CoV-2 on January 24th 2020 for persons suspected with this disease. Until February 28th, 43 flu-like symptomatic patients were screened in China Medical University Hospital. METHODS: Two patients were confirmed positive for SARS-CoV-2 infection by rRT-PCR as COVID-19 patients A and B. Causative pathogens for included patients were detected using FilmArray™ Respiratory Panel. We retrospectively analyzed the clinical presentations, laboratory data, radiologic findings, and travel and exposure contact histories, of the COVID-19 patients in comparison to those with other respiratory infections. RESULTS: Through contact with Taiwan No. 19 case patient on 27th January, COVID-19 patients A and B were infected. Both patients had no identified comorbidities and developed mild illness with temporal fever, persistent cough, and lung interstitial infiltrates. Owing to the persistence of positive SARS-CoV-2 in respiratory specimen, the two COVID-19 patients are still in the isolation rooms despite recovery until 10th of March. The results of FilmArrayTM Respiratory Panel revealed 22 of the 41 non-COVID-19 patients were infected by particular pathogens. In general, seasonal respiratory pathogens are more prevalent than SARS-CoV-2 in symptomatic patients in non- COVID-19 endemic area during the flu season. Since all patients shared similar clinical and laboratory findings, expanded surveillance of detailed exposure history for suspected patients and application of rapid detection tools are highly recommended.


Assuntos
Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Programas de Rastreamento/métodos , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Betacoronavirus/isolamento & purificação , COVID-19 , Humanos , Pandemias , Estudos Retrospectivos , SARS-CoV-2 , Estações do Ano , Taiwan/epidemiologia , Viagem
9.
J Microbiol Immunol Infect ; 51(2): 235-242, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28847713

RESUMO

BACKGROUND: In Taiwan, studies about hematogenous pyogenic vertebral osteomyelitis (HPVO) are limited. We conducted a retrospective study to evaluate the clinical presentations, treatment, and outcomes of patients with the diagnosis of HPVO. METHOD: This 12.5-year retrospective study included patients with a diagnosis of HPVO. Medical records of all HPVO patients were thoroughly reviewed and their clinical data were analyzed by the SPSS software. RESULT: 414 HPVO cases were included and the mean age was 61.6 ± 13.4 years. The mean duration of symptoms was 29 ± 35.3 days and pain over the affected site was reported by most patients (86.0%). Gram-positive bacteria, especially Staphylococcus aureus (162/399 = 40.6%), were the main HPVO pathogens. Escherichia coli (42/399 = 10.5%) was the most common gram-negative isolate. Surgery was performed in 68.8% of cases and the mean duration of total antibiotic treatment was 104.7 ± 77.7 days. All-cause mortality and recurrence rates were 6.3% and 18.8%, respectively. In multivariate analysis, polymicrobial infection (OR: 4.154, 95% CI: 1.039-16.604, p = 0.044), multiple vertebral body involvement (OR: 2.202, 95% CI: 1.088-4.457, p = 0.028), abscess formation treated with antibiotics alone (OR: 2.912, 95% CI: 1.064-7.966, p = 0.037), and the duration of antimicrobial treatment less than 4 weeks (OR: 3.737, 95% CI: 1.195-11.683, p = 0.023) were associated with HPVO recurrence. CONCLUSION: In Taiwan, HPVO mainly affected the elderly and S. aureus remained the most common HPVO pathogen. In patients with risk factors associated with HPVO recurrence, a longer duration (≥6 weeks) of antimicrobial therapy is suggested.


Assuntos
Antibacterianos/uso terapêutico , Escherichia coli/isolamento & purificação , Osteomielite/microbiologia , Coluna Vertebral/patologia , Staphylococcus aureus/isolamento & purificação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteomielite/diagnóstico , Osteomielite/terapia , Recidiva , Estudos Retrospectivos , Fatores de Risco , Coluna Vertebral/microbiologia , Taiwan , Centros de Atenção Terciária , Resultado do Tratamento
10.
J Microbiol Immunol Infect ; 51(4): 552-558, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28625801

RESUMO

BACKGROUNDS: Candida guilliermondii is rarely isolated from clinical specimen. C. guilliermondii fungemia is seldom reported in the literature. The aims of this study were to report the clinical features, antifungal susceptibility, and outcomes of patients with C. guilliermondii fungemia. METHODS: From 2003 to 2015, we retrospectively analyzed the clinical and laboratory data of patients with C. guilliermondii fungemia in a tertiary hospital in mid-Taiwan. We performed a multivariable logistic regression analysis to identify the risk factors of mortality. The Sensititre YeastOne microtiter panel assessed the susceptibility of antifungal agents. RESULTS: In this study, we identified 36 patients with C. guilliermondii fungemia. The median age of patients was 50.5 years (range, 17 days to 96 year) and 20 cases (56%) were male. The incidence of C. guilliermondii fungemia was 0.05 per 1000 admissions. Malignancy was the most common co-morbidity, and 25 (69%) patients had central venous catheter in place. Thirty-day overall mortality was 16.7%. In multivariate logistical regression analysis, catheter retention was an independent risk factor of mortality. According to epidemiological cutoff values, most clinical isolates (21/22, 95.5%) belonged to the wild-type MIC distributions for amphotericin B and flucytosine; however, the isolates were less susceptible to fluconazole (68%) and echinocandins (77-91%). CONCLUSION: Despite the lower mortality rate associated with C. guilliermondii fungemia, the removal of a central venous catheter remained an independent factor influencing the outcome of patients. The clinical significance of less susceptibility of C. guilliermondii to triazoles and echinocandins remains to be elucidated.


Assuntos
Antifúngicos/uso terapêutico , Candida/efeitos dos fármacos , Candida/isolamento & purificação , Candidemia/microbiologia , Candidemia/patologia , Farmacorresistência Fúngica , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antifúngicos/farmacologia , Candidemia/epidemiologia , Candidemia/mortalidade , Criança , Pré-Escolar , Feminino , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Taiwan/epidemiologia , Centros de Atenção Terciária , Resultado do Tratamento , Adulto Jovem
11.
Langmuir ; 33(13): 3253-3261, 2017 04 04.
Artigo em Inglês | MEDLINE | ID: mdl-28288275

RESUMO

The nucleation and growth process of gold supercrystals in a surfactant diffusion approach is followed by simultaneous small- and wide-angle X-ray scattering (SAXS/WAXS), supplemented with scanning electron microscopy. The results indicate that supercrystal nucleation can be activated efficiently upon placing a concentrated surfactant solution of a nematic phase on top of a gold nanocrystal solution droplet trapped in the middle of a vertically oriented capillary tube. Supercrystal nuclei comprised of tens of gold nanocubes are observed nearly instantaneously in the broadened liquid-liquid interface zone of a steep gradient of surfactant concentration, revealing a diffusion-kinetics-controlled nucleation process. Once formed, the nuclei can sediment into the naoncrystal zone below, and grow efficiently into cubic or tetragonal supercrystals of ∼1 µm size within ∼100 min. Supercrystals matured during sedimentation in the capillary can accumulate and face-to-face align at the bottom liquid-air interface of the nanocrystal droplet. This is followed by superpacking of the supercrystals into highly oriented hierarchical sheets, with a huge number of gold nanocubes aligned for largely coherent crystallographic orientations.

12.
J Phys Chem Lett ; 8(2): 470-477, 2017 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-28067527

RESUMO

Using simultaneously scanning small-angle X-ray scattering (SAXS) and UV-vis absorption with integrated online size exclusion chromatography, supplemental with molecular dynamics simulations, we unveil the long-postulated global structure evolution of a model multidomain protein bovine serum albumin (BSA) during acid-induced unfolding. Our results differentiate three global packing structures of the three molten globule domains of BSA, forming three intermediates I1, I2, and E along the unfolding pathway. The I1-I2 transition, overlooked in all previous studies, involves mainly coordinated reorientations across interconnected molten globule subdomains, and the transition activates a critical pivot domain opening of the protein for entering into the E form, with an unexpectedly large unfolding free energy change of -9.5 kcal mol-1, extracted based on the observed packing structural changes. The revealed local packing flexibility and rigidity of the molten globule domains in the E form elucidate how collective motions of the molten globule domains profoundly influence the folding-unfolding pathway of a multidomain protein.


Assuntos
Proteínas/química , Soroalbumina Bovina/química , Simulação de Dinâmica Molecular , Ressonância Magnética Nuclear Biomolecular , Desnaturação Proteica , Estrutura Secundária de Proteína , Estrutura Terciária de Proteína , Desdobramento de Proteína , Espalhamento a Baixo Ângulo , Difração de Raios X
13.
Soft Matter ; 12(29): 6300-11, 2016 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-27376417

RESUMO

The mesoscale aggregation properties of C60 in two distinct aromatic solvents (toluene and chlorobenzene) and a practical range of concentrations (c = 1-2 and c = 1-5 mg mL(-1), respectively) were systematically explored by static/dynamic light scattering (SLS/DLS), small angle X-ray scattering (SAXS), depolarized dynamic light scattering (DDLS), and cryogenic transmission electron microscopy (cryo-TEM) analyses. The central observations were as follows: (1) aggregate species of sizes in the range of several hundred nanometers have been independently revealed by SLS, DLS, and DDLS analyses for both solvent systems. (2) DDLS and cryo-TEM measurements further revealed that while C60 clusters are notably anisotropic (rod-like) in chlorobenzene, they are basically isotropic (spherical) in toluene. (3) Detailed analyses of combined SLS and SAXS profiles suggested that varied, yet self-similar, solvent-induced aggregate units were responsible for the distinct (mesoscale) aggregation features noted above. (4) From a dynamic perspective, specially commissioned DLS measurements ubiquitously displayed two relaxation modes (fast and slow mode), with the second (slow) mode being q (wave vector) independent. While the fast mode in both solvent systems was basically diffusive by nature and leads to geometrical features in good agreement with the above static analyses, the slow mode was analyzed and tentatively suggested to reflect the effect of mutual confinement. (5) Micron-scale aggregate morphology of drop-cast thin films displays similar contrasting features for the two solvent media used. Overall, this study suggests that solvent-induced, nanoscale, aggregate units may be a promising factor to control a hierarchy of microscopic aggregation properties of C60 solutions and thin films.

14.
Medicine (Baltimore) ; 95(25): e3927, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27336882

RESUMO

Neutralizing anti-interferon-γ autoantibody (nAIGA)-associated immunodeficiency is an emerging medical issue worldwide. In the present study, we describe and discuss the clinical features and outcomes of patients with nAIGAs and disseminated infections by nontuberculous mycobacteria (dNTM).We thoroughly reviewed the medical records of all patients. Microorganisms and nAIGAs were identified using previously described methods with modifications. All data were calculated and analyzed using SPSS software.Among 46 adult patients with dNTM infections, we identified 45 cases (97.8%) with nAIGAs. The average patient age was 58.6 years, and there was no sex predominance. Cervical lymphadenitis (81.8%) was the most common clinical manifestation. Endocrine disorder was the leading comorbidity (7 cases). Malignancies were found in 4 patients, and all of the malignancies originated from the T-cell/macrophage lineage. More than half of the identifiable isolates were slow-growing NTMs. Twenty-eight (62.2%) and 18 (40.0%) patients had a history of zoster and salmonellosis, respectively. A high proportion of patients with recurrent episodes of NTM infection or a history of zoster and dNTM infection had initial nAIGA titers ≥10 dilution (P < 0.05). Twenty-seven patients (60.0%) required long-term antimycobacterial therapy and had at least 1 episode of recurrent NTM disease. No mortality was related to dNTM infection.In Taiwan, nAIGAs are a recently recognized mechanism of dNTM infection. Long term of antibiotic treatment and adherence to medical advice are necessary to improve the clinical outcome of patients with nAIGAs.


Assuntos
Antibacterianos/uso terapêutico , Anticorpos Anti-Idiotípicos/imunologia , Autoanticorpos/imunologia , Interferon gama/imunologia , Infecções por Mycobacterium não Tuberculosas/epidemiologia , Micobactérias não Tuberculosas/imunologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Infecções por Mycobacterium não Tuberculosas/tratamento farmacológico , Infecções por Mycobacterium não Tuberculosas/imunologia , Prognóstico , Estudos Retrospectivos , Taiwan/epidemiologia , Fatores de Tempo
15.
J Microbiol Immunol Infect ; 49(1): 46-51, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26454421

RESUMO

BACKGROUND/PURPOSE: Methicillin-resistant Staphylococcus aureus (MRSA) nosocomial pneumonia (NP) is associated with higher resource utilization, increased hospital stays, and mortality. We present a health economics model to understand the impact of using linezolid as the first-line treatment of MRSA NP in Taiwan. METHODS: We developed a cost-effectiveness model to estimate the costs and clinical outcomes of using linezolid 600 mg b.i.d. versus vancomycin 15 mg/kg b.i.d. as the first-line treatment of MRSA NP in Taiwan. The model is a decision-analytic analysis in which a MRSA-confirmed patient is simulated to utilize one of the treatments, using data from a clinical trial. Within each treatment arm, the patient can or cannot achieve clinical cure. Regardless of whether the clinical cure was achieved or not, the patient may or may not have experienced an adverse event. The per-protocol results for clinical cure were 57.6% and 46.6% for linezolid and vancomycin, respectively. RESULTS: The total cost of linezolid was $376 more per patient than that of vancomycin. Drug costs were higher for linezolid than for vancomycin ($1108 vs. $233), and hospitalization costs were lower ($4998 vs. $5496). With higher cost and higher cure rates for linezolid, the incremental cost per cure was $3421. CONCLUSION: This study projects linezolid to have higher drug costs, lower hospital costs, and higher overall costs compared with vancomycin. This is balanced against the higher clinical cure rate for linezolid. Depending on the willingness to pay for clinical cure, linezolid could be cost effective as the first-line treatment of NP in Taiwan.


Assuntos
Antibacterianos/economia , Antibacterianos/uso terapêutico , Infecção Hospitalar/tratamento farmacológico , Linezolida/uso terapêutico , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Pneumonia Estafilocócica/tratamento farmacológico , Análise Custo-Benefício , Infecção Hospitalar/microbiologia , Feminino , Humanos , Linezolida/economia , Masculino , Pneumonia Estafilocócica/microbiologia , Taiwan , Resultado do Tratamento
16.
Nephrol Dial Transplant ; 31(2): 269-74, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26453199

RESUMO

BACKGROUND: Studies on the effectiveness of seasonal influenza vaccination in peritoneal dialysis (PD) patients are limited. The aim of the present study is to evaluate the effectiveness of seasonal influenza vaccination in reducing morbidity and mortality in incident end-stage renal disease patients on PD. METHODS: From Taiwan's National Health Insurance Research Database, we identified 2089 incident PD patients with seasonal influenza vaccination and 2089 propensity score matched incident PD patients without the vaccination during 1998-2010. Each study subject was followed up to measure the 12-month incident cardiovascular and infectious diseases, and deaths. The effects of multi-year vaccinations were also estimated. RESULTS: Compared with the non-vaccinated cohort, the vaccinated cohort had a lower hospitalization rate (68.5 versus 80.2 per 100 person-years) with an adjusted hazard ratio (aHR) of 0.85 [95% confidence interval (CI) = 0.78-0.92]. Hazards of hospitalization were significantly reduced for sepsis (aHR = 0.79, 95% CI = 0.65-0.96), heart disease (aHR = 0.74, 95% CI = 0.63-0.89) and intensive care (aHR = 0.85, 95% CI = 0.73-0.99). In addition, hazards of peritonitis (aHR = 0.84, 95% CI = 0.73-0.97) and overall mortality (aHR = 0.66, 95% CI = 0.55-0.78) were also reduced. The aHR of mortality was reduced much further to 0.28 (95% CI = 0.22-0.35) for those with multiple-year vaccinations. CONCLUSIONS: Seasonal influenza vaccination for PD patients is associated with significant reduction in morbidities and a 34% reduction in mortality. Multi-year vaccinations could reduce the death hazard further to 72%.


Assuntos
Vírus da Influenza A/imunologia , Vacinas contra Influenza/administração & dosagem , Influenza Humana/prevenção & controle , Falência Renal Crônica/complicações , Diálise Peritoneal , Vacinação/métodos , Idoso , Feminino , Humanos , Influenza Humana/epidemiologia , Falência Renal Crônica/mortalidade , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Morbidade/tendências , Pontuação de Propensão , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Estações do Ano , Taxa de Sobrevida/tendências , Taiwan/epidemiologia
17.
Curr HIV Res ; 14(2): 138-47, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26487305

RESUMO

BACKGROUND: In the past decade, HIV/AIDS epidemic in Taiwan experienced an outbreak of HIV-1 CRF07_BC among intravenous drug users (IDU) in 2004-2006 that led to the reported HIV/AIDS case number more than doubled in less than 3 years and subsequent changes in free antiretroviral therapy (ART) treatment program for persons living with HIV/AIDS (PLWHA). METHODS: We investigate HIV underreporting in Taiwan by utilizing a discrete-time compartmental mathematical model for disease transmission and HIV/AIDS surveillance data during 2001-2011. RESULTS: The estimated underreporting ratio in 2011 is 0.45:1, down from 1:1 ratio in 2000. We also provide future projections of the numbers of reported and unreported PLWHA in Taiwan, assuming that model parameters remain unchanged in the near future. CONCLUSION: N-step-ahead forecasting comparison with 2012-2014 observed data indicates lower than expected number of known PLWHA and new deaths, perhaps attributable to increased treatment, but higher number of newly reported HIV/AIDS cases, which requires further investigation.


Assuntos
Epidemias , Previsões/métodos , Infecções por HIV/epidemiologia , Modelos Teóricos , Surtos de Doenças , Infecções por HIV/tratamento farmacológico , HIV-1 , Humanos , Vigilância em Saúde Pública/métodos , Fatores de Risco , Taiwan/epidemiologia
18.
Medicine (Baltimore) ; 94(27): e1070, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26166080

RESUMO

There are limited population-based studies on the progress of oseltamivir therapy for influenza infection.Using insurance claims data of 2005, 2009, and 2010, the authors established an "in-time" cohort and a "lag-time" cohort representing influenza patients taking the medicine within and not within 1 week to examine the treatment progress. Incident outpatient visit, emergency care and hospitalization, and fatality were compared between the 2 cohorts in the first week and the second week of follow-up periods, after the oseltamivir therapy.A total of 112,492 subjects diagnosed with influenza on oseltamivir therapy in 2005, 2009, and 2010 were identified. The multivariate logistic regression analysis showed that the in-time treatment was superior to the lag-time treatment with less repeat outpatient visits, hospitalizations, and fatality. The overall corresponding in-time treatment to lag-time treatment odds ratios (OR) were 0.50, 0.54, and 0.71 (all P value < 0.05), respectively. The in-time to lag-time ORs of all events were 0.50 in 2009 and 0.54 in 2010.Our study demonstrates that the in-time oseltamivir therapy leads to significantly better treatment outcomes. Oseltamivir should be administered as early as the onset of influenza symptoms appears.


Assuntos
Antivirais/uso terapêutico , Povo Asiático , Influenza Humana/tratamento farmacológico , Influenza Humana/mortalidade , Oseltamivir/uso terapêutico , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Antivirais/administração & dosagem , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Influenza Humana/etnologia , Pacientes Internados/estatística & dados numéricos , Revisão da Utilização de Seguros , Masculino , Pessoa de Meia-Idade , Oseltamivir/administração & dosagem , Pacientes Ambulatoriais/estatística & dados numéricos , Estudos Retrospectivos , Distribuição por Sexo , Fatores de Tempo
19.
J Microbiol Immunol Infect ; 48(5): 497-503, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25446039

RESUMO

BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) has been increasingly causing skin and soft tissue infections (SSTIs). Only limited studies have made comparisons between incision and drainage (I&D) alone and I&D with adjunctive antibiotic therapy for treatment effects, and most of the studies were conducted before the emergence of MRSA. This study was to evaluate whether antibiotics provide added benefit to I&D alone for purulent MRSA SSTIs. METHODS: This retrospective study collected data on SSTI patients, including patient demographics, treatment strategies, antibiotic susceptibilities of the infecting MRSA isolates, and clinical outcomes over the course of 24 months. RESULTS: Antimicrobial drug susceptibility rate were 100% for vancomycin, teicoplanin, and linezolid. Among the 211 patients, 7.6% were treated solely with I&D (Group A), 62.6% were treated via I&D with adjunctive antibiotic (Group B), and 29.8% patients received only antibiotics (Group C). The cure rate was highest in Group A (93.8%), followed by Group B (90.9%) and Group C (77.8%). Combining Group B and Group C, patients who were treated appropriately demonstrated a higher cute rate (91.3% vs. 75.4%, p = 0.005). Multivariate analysis showed that Group B was more likely to be successfully treated compared to Group C (odds ratio = 2.51, 95% confidence interval = 1.01-6.25, p = 0.047), whereas no difference between Group A and Group B was found (odds ratio = 2.09, 95% confidence interval = 0.20-22.34, p = 0.542, data not shown). CONCLUSION: Surgical intervention is the definitive therapy for purulent SSTIs. Adjunctive antibiotic therapy increased the cure rate and appropriateness of prescription is influential.


Assuntos
Antibacterianos/uso terapêutico , Drenagem , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Infecções dos Tecidos Moles/tratamento farmacológico , Infecções dos Tecidos Moles/cirurgia , Infecções Cutâneas Estafilocócicas/tratamento farmacológico , Infecções Cutâneas Estafilocócicas/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Infecções dos Tecidos Moles/microbiologia , Infecções Cutâneas Estafilocócicas/microbiologia , Taiwan , Centros de Atenção Terciária , Resultado do Tratamento , Adulto Jovem
20.
Psychol Rep ; 114(3): 687-719, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25074298

RESUMO

To support employees' work and health, organizations should help employees cope with common problems. Previous studies have focused primarily on work-related problems across multiple industries rather than on evaluating industry-specific issues. Here, two approaches identified common work and non-work employee problems in the technology industry with the strongest correlations with psychosomatic health and life satisfaction. Study 1 used questionnaires to identify the problems that were perceived as the most frequent by lower-level employees (N = 355) working in the technology industry. Study 2 evaluated employees' coping behaviors by analyzing (with permission) counseling records collected from an employee assistance service company (N = 276). Employees reported a variety of problems; work problems were the only problems (of the top 5 problems) reported in both studies. Several problems emerged in the counseling records (e.g., legal issues, career development, family and marriage problems, and emotional problems) but not in the surveys. Future research should apply these observations to develop scales for measuring employee stressors.


Assuntos
Computadores , Aconselhamento , Reivindicações Trabalhistas/estatística & dados numéricos , Indústrias , Serviços de Saúde do Trabalhador , Resolução de Problemas , Software , Adaptação Psicológica , Sintomas Afetivos/diagnóstico , Sintomas Afetivos/epidemiologia , Sintomas Afetivos/psicologia , Sintomas Afetivos/terapia , Estudos Transversais , Humanos , Satisfação no Emprego , Doenças Profissionais/diagnóstico , Doenças Profissionais/epidemiologia , Doenças Profissionais/psicologia , Doenças Profissionais/terapia , Psicometria/estatística & dados numéricos , Transtornos Psicofisiológicos/diagnóstico , Transtornos Psicofisiológicos/epidemiologia , Transtornos Psicofisiológicos/psicologia , Transtornos Psicofisiológicos/terapia , Reprodutibilidade dos Testes , Estudos Retrospectivos , Estresse Psicológico/complicações , Inquéritos e Questionários , Taiwan
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