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1.
Curr Issues Mol Biol ; 46(2): 1010-1019, 2024 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-38392182

RESUMO

Betel quid (BQ) is the fourth most popular psychoactive substance in the world, and BQ use disorder (BUD) is prevalent in Asian countries. Although the mechanisms underlying BUD remain unclear, studies have reported influences from monoamine oxidase inhibitor. We enrolled 50 patients with BUD and assessed their BQ consumption habits, emotional conditions, and the clinical severity of addiction-assessed using the Diagnostic and Statistical Manual of Mental Disorders [Fifth Edition] (DSM-5) criteria, Substance Use Severity Rating Scale, and Yale-Brown Obsessive Compulsive Disorder Rating Scale for BQ. Patients were categorized into the severe group when showing six or more symptoms defined by DSM-5. A genome-wide association study was conducted for single nucleotide polymorphisms in BRCA1, COL9A1, NOTCH1, HSPA13, FAT1, and MAOA by using patients' blood samples. More severe BUD symptoms were associated with younger age of using BQ and poor oral hygiene and with severe craving for and more anxiety toward BQ use. The MAOA rs5953210 polymorphism was significantly associated with severe BUD (odds ratio, 6.43; 95% confidence interval, 5.12-7.74; p < 0.01) and might contribute to BQ-associated cancer risk. Further studies are required to investigate the addictive properties of BQ and the development of novel diagnostic tools and pharmacotherapeutic alternatives to BUD treatment.

2.
Am J Emerg Med ; 83: 9-15, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38943710

RESUMO

BACKGROUND: Out-of-hospital cardiac arrest (OHCA) increases lactate levels and reduces albumin levels on admission and tends to lead to a poor neurological prognosis. In our experience, reduced cholesterol levels predict poor neurological prognosis. However, the relationship between cholesterol levels and neurological prognosis in OHCA survivors remains unclear. METHODS: This retrospective observational study included data from January 2015 to June 2023 on 219 OHCA survivors at our intensive care unit. Patients were categorized into two groups based on cerebral functional classification (CPC) scores: Group A (CPC score of 1 or 2), including patients with a favorable neurological outcome, and Group B (CPC scores of 3 to 5), comprising those with a poor neurological outcome. We analyzed their lactate, albumin levels, and lipid profiles measured at 6 h after resuscitation. A model to predict the neurological prognosis of admission of OHCA survivors was developed. RESULTS: Approximately 40% of the patients had favorable neurological outcomes at the 30-day follow-up. The lactate-to-albumin ratio (LAR) was significantly lower in Group A than in Group B (3.1 vs. 5.0 mmol/dag, p < 0.001). However, the albumin, total cholesterol, and high-density lipoprotein (HDL) cholesterol levels were significantly higher in Group A than in Group B (3.6 vs. 2.9 g/dL, 166.1 vs. 131.4 mg/dL, and 38.8 vs. 29.7 mg/dL, respectively, p < 0.001). Favorable neurological outcome was indicated at the following thresholds: LAR < 3.7 mmol/dag, albumin level > 3.1 g/dL, total cholesterol level > 146.4 mg/dL, and HDL-cholesterol level > 31.9 mg/dL. These findings underscore the high sensitivity and negative predictive value of the biomarkers. Furthermore, the area under the curve values for LAR, albumin, total cholesterol, and HDL-cholesterol levels were 0.70, 0.75, 0.71, and 0.71, respectively. The corresponding odds ratios were 3.37, 7.08, 3.67, and 3.94, respectively. CONCLUSIONS: The LAR, albumin, total cholesterol, and HDL-cholesterol levels measured on admission may predict neurological prognosis in OHCA survivors. Thus, routine practice should include the measurement of these biomarkers at 6 h after resuscitation, especially in patients with a lactate level of > 5 mmol/L. TRIAL REGISTRATION: ClinicalTrials.gov ID: NCT02633358.


Assuntos
Colesterol , Ácido Láctico , Parada Cardíaca Extra-Hospitalar , Humanos , Masculino , Parada Cardíaca Extra-Hospitalar/sangue , Parada Cardíaca Extra-Hospitalar/terapia , Parada Cardíaca Extra-Hospitalar/mortalidade , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Colesterol/sangue , Prognóstico , Ácido Láctico/sangue , Idoso , Sobreviventes , Albumina Sérica/análise , Albumina Sérica/metabolismo , Biomarcadores/sangue
3.
Int J Mol Sci ; 25(17)2024 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-39273170

RESUMO

Betel quid (BQ) use disorder (BUD) is prevalent in many Asian countries, impacting approximately 600 million people. We conducted a randomized clinical trial to analyze the impact of MAOA genetic variations on the severity of BQ craving. This was measured using DSM-5 criteria and the Yale-Brown Obsessive-Compulsive Scale modified for betel quid use (Y-BOCS-BQ). Participants were grouped according to the severity of BUD and MAOA gene single-nucleotide polymorphism (SNP) rs5953210 genotypes. The Y-BOCS-BQ scores were assessed at baseline (week 0) and during follow-up at weeks 2, 4, 6, and 8. The AA genotype group showed significantly greater reductions in Y-BOCS-BQ at weeks 2 (p = 0.0194), 4 (p = 0.0078), 6 (p = 0.0277), and 8 (p = 0.0376) compared to the GG genotype group. Additionally, within the antidepressant group, the AA genotype showed significant reductions in the Y-BOCS-BQ scores at weeks 2 (p = 0.0313), 4 (p = 0.0134), 6 (p = 0.0061), and 8 (p = 0.0241) compared to the GG genotype. The statistical analysis revealed a significant interaction between the treatment and placebo groups based on MAOA genotypes, with the AA genotype in the treatment group exhibiting a more pronounced decrease in Y-BOCS-BQ score (p interaction <0.05) at week 6. Our study highlights the importance of considering genetic factors when developing personalized treatment plans for BUD.


Assuntos
Antidepressivos , Areca , Fissura , Monoaminoxidase , Polimorfismo de Nucleotídeo Único , Humanos , Monoaminoxidase/genética , Masculino , Feminino , Adulto , Areca/efeitos adversos , Antidepressivos/uso terapêutico , Fissura/efeitos dos fármacos , Transtornos Relacionados ao Uso de Substâncias/genética , Genótipo , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
4.
Am J Pathol ; 189(1): 190-199, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30315765

RESUMO

Oral squamous cell carcinoma (OSCC) is the most common malignant cancer, with high mortality rates in advanced stages. Recent studies have shown that the expression of ALPK1 mRNA and its inhibitory differentiation function are associated with cancer progression. However, the expression and clinicopathologic features of ALPK1 in OSCC remain unexplored. Herein, the authors investigated the expression patterns of ALPK1 in 39 matched OSCC patients and examined the relationship between ALPK1 protein expression and clinicopathologic factors using immunohistochemical scores. Using Western blot analysis, ALPK1 expression was found to be significantly higher in tumor tissues than that in nontumor tissues. Through an immunoreactive scoring system, a significantly higher number of advanced-stage tumor size T4 and lymph node metastasis N2 exhibited higher ALPK1 expression levels than that exhibited by T1/T2/T3 tumors and N0/N1. In addition, ALPK1 protein expression was aberrant in malignant oral cancer cell lines compared with that in pre-malignant oral epithelial cells, whereas minimal expression was observed in normal oral epithelial cells. Knockdown of ALPK1 resulted in a significant reduction in cell growth, migration, and invasion capacity in vitro. Consequently, expression of N-cadherin and vimentin decreased in ALPK1-deficient cells. Thus, these results suggest that ALPK1 serves as a potential biomarker and target for OSCC development in late stages.


Assuntos
Biomarcadores Tumorais/biossíntese , Carcinoma de Células Escamosas/enzimologia , Regulação Enzimológica da Expressão Gênica , Regulação Neoplásica da Expressão Gênica , Proteínas de Neoplasias/biossíntese , Proteínas Quinases/biossíntese , Neoplasias da Língua/enzimologia , Adulto , Antígenos CD/genética , Antígenos CD/imunologia , Antígenos CD/metabolismo , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/imunologia , Caderinas/genética , Caderinas/imunologia , Caderinas/metabolismo , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/imunologia , Carcinoma de Células Escamosas/patologia , Linhagem Celular Tumoral , Feminino , Técnicas de Silenciamento de Genes , Humanos , Queratinócitos/imunologia , Queratinócitos/metabolismo , Queratinócitos/patologia , Metástase Linfática/genética , Metástase Linfática/imunologia , Metástase Linfática/patologia , Masculino , Pessoa de Meia-Idade , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/imunologia , Estadiamento de Neoplasias , Proteínas Quinases/genética , Proteínas Quinases/imunologia , Neoplasias da Língua/genética , Neoplasias da Língua/imunologia , Neoplasias da Língua/patologia , Vimentina/genética , Vimentina/imunologia , Vimentina/metabolismo
5.
Phys Rev Lett ; 124(16): 167203, 2020 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-32383953

RESUMO

Spin-1 antiferromagnets are abundant in nature, but few theories exist to understand their properties and behavior when geometric frustration is present. Here we study the S=1 kagome compound Na_{2}Ti_{3}Cl_{8} using a combination of density functional theory, exact diagonalization, and density matrix renormalization group approaches to achieve a first principles supported explanation of its exotic magnetic phases. We find that the effective magnetic Hamiltonian includes essential non-Heisenberg terms that do not stem from spin-orbit coupling, and both trimerized and spin-nematic magnetic phases are relevant. The experimentally observed structural transition to a breathing kagome phase is driven by spin-lattice coupling, which favors the trimerized magnetic phase against the quadrupolar one. We thus show that lattice effects can be necessary to understand the magnetism in frustrated magnetic compounds and surmise that Na_{2}Ti_{3}Cl_{8} is a compound that cannot be understood from only electronic or only lattice Hamiltonians, very much like VO_{2}.

6.
Phys Rev Lett ; 125(14): 140603, 2020 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-33064532

RESUMO

Quantum entanglement is fragile to thermal fluctuations, which raises the question whether finite temperature phase transitions support long-range entanglement similar to their zero temperature counterparts. Here we use quantum Monte Carlo simulations to study the third Renyi negativity, a generalization of entanglement negativity, as a proxy of mixed-state entanglement in the 2D transverse field Ising model across its finite temperature phase transition. We find that the area-law coefficient of the Renyi negativity is singular across the transition, while its subleading constant is zero within the statistical error. This indicates that the entanglement is short-range at the critical point despite a divergent correlation length. Renyi negativity in several exactly solvable models also shows qualitative similarities to that in the 2D transverse field Ising model.

7.
Biochim Biophys Acta ; 1862(11): 2034-2042, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27542954

RESUMO

Alpha-kinase 1 (ALPK1) is associated with chronic kidney disease (CKD), type 2 diabetes mellitus and gout. Elevated ALPK1 levels have been observed in the kidneys of patients with diabetes and the white blood cells of patients with gout. As renal injury is a common outcome of CKD, diabetes and gout, the aim of this study was to investigate the effect of ALPK1 in the development of renal injury in a hyperglycemic condition. Hyperglycemia was induced in wild-type and ALPK1 transgenic mice by an intraperitoneal injection of streptozotocin (STZ). Functional and histological examinations were performed after 3weeks. STZ-treated ALPK1 transgenic mice exclusively showed arteriolar sclerosis and fibrous thickening of the Bowman's capsule in the kidney. This was accompanied by body weight loss, severe hyperglycemia, and low serum insulin levels. Renal renin and serum renin protein levels were higher in STZ-treated ALPK1 transgenic mice, whereas cGKII protein level was decreased by ALPK1 in human embryonic kidney 293 (HEK293) cells. ALPK1 up-regulated TGF-beta1 levels and transcription of fibrosis-related genes, including MMP-9, FIBRONECTIN, and TIMP1. MSU crystals increased ALPK1 transcription in cultured kidney cells. Finally, ALPK1 enhanced production of MSU crystals-induced IL-1beta in mice. Stimulation of soluble sodium urate induced IL-1beta and Alpk1 mRNA production in mice kidney. Taken together, these data show that an increase in ALPK1 results in accelerated fibrotic nephropathies, primarily through the enhancement of renin, TGF-beta1, and IL-1beta. Renal or blood ALPK1 levels are involved in the induction of fibrotic renal injury in an experimental model of hyperglycemia.

8.
J Hum Genet ; 61(9): 803-10, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27225847

RESUMO

The aim of the present study was to evaluate the contribution of urate transporter genes and alcohol use to the risk of gout/tophi. Eight variants of ABCG2, SLC2A9, SLC22A12, SLC22A11 and SLC17A3 were genotyped in male individuals in a case-control study with 157 gout (33% tophi), 106 asymptomatic hyperuricaemia and 295 control subjects from Taiwan. The multilocus profiles of the genetic risk scores for urate gene variants were used to evaluate the risk of asymptomatic hyperuricaemia, gout and tophi. ABCG2 Q141K (T), SLC2A9 rs1014290 (A) and SLC22A12 rs475688 (C) under an additive model and alcohol use independently predicted the risk of gout (respective odds ratio for each factor=2.48, 2.03, 1.95 and 2.48). The additive composite Q141K, rs1014290 and rs475688 scores of high-risk alleles were associated with gout risk (P<0.0001). We observed the supramultiplicative interaction effect of genetic urate scores and alcohol use on gout and tophi risk (P for interaction=0.0452, 0.0033). The synergistic effect of genetic urate score 5-6 and alcohol use indicates that these combined factors correlate with gout and tophi occurrence.


Assuntos
Membro 2 da Subfamília G de Transportadores de Cassetes de Ligação de ATP/genética , Consumo de Bebidas Alcoólicas/efeitos adversos , Alelos , Proteínas Facilitadoras de Transporte de Glucose/genética , Gota/epidemiologia , Gota/etiologia , Transportadores de Ânions Orgânicos/genética , Proteínas de Transporte de Cátions Orgânicos/genética , Adulto , Idade de Início , Idoso , Estudos de Casos e Controles , Comorbidade , Genótipo , Humanos , Hiperuricemia/epidemiologia , Hiperuricemia/genética , Masculino , Pessoa de Meia-Idade , Razão de Chances , Polimorfismo de Nucleotídeo Único , Risco , Taiwan/epidemiologia
9.
Phys Rev Lett ; 127(4): 049702, 2021 07 23.
Artigo em Inglês | MEDLINE | ID: mdl-34355961
10.
Diabetes Metab Res Rev ; 30(3): 232-40, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24123702

RESUMO

OBJECTIVE: Plasma resistin level is a potential molecular link between obesity and diabetes. Causal role of resistin, type 2 diabetes mellitus (T2DM) and genetic variants have not been thoroughly investigated. Therefore, we conducted a genome-wide association study (GWAS) to identify quantitative trait loci associated with resistin levels and investigated whether these variants were prospectively associated with the development of metabolic syndrome (MetS) and T2DM in an independent community-based cohort, the CardioVascular Disease risk FACtors Two-township Study (CVDFACTS). RESEARCH DESIGN AND METHODS: We genotyped 382 young-onset hypertensive (YOH) subjects with Illumina HumanHap550 chips and searched for quantitative trait loci (QTLs) of resistin in the 1(st) stage GWAS and confirmed the finding in another 559 YOH subjects. Logistic regression was used to examine the Mendelian randomization effects between genotypes of confirmed QTLs and metabolic outcomes in 3400 subjects of CVDFACTS. RESULTS: Two single nucleotide polymorphisms (SNP) (rs3745367 and rs1423096) were significantly associated with resistin levels (p = 5.52 × 10(-15) and p = 2.54 × 10(-20) ) and replicated in another 559 YOH subjects (p = 1.29 × 10(-3) and p = 1.13 × 10(-7) ), respectively. The SNP rs1423096 was further associated with the levels of HDL-C (p = 0.006), the risk of MetS (OR = 2.21, p = 0.0034) and T2DM (OR = 1.62, p = 0.0063) in the CVDFACTS. People with the haplotypes A-G and G-G determined by rs3745367 and rs1423096 showed a significantly increased T2DM risk (p = 0.0068 and p = 0.0035, respectively) compared with those with A-A haplotype. CONCLUSION: We have found that rs3745367 and rs1423096 on the RETN gene were significantly associated with resistin levels. However, rs1423096, downstream of RETN, seems to be associated with MetS and T2DM risk more so than rs3745367. The established genotype-disease association points to a causal association of resistin and T2DM.


Assuntos
Diabetes Mellitus Tipo 2/genética , Locos de Características Quantitativas , Resistina/genética , Adulto , DNA/genética , Diabetes Mellitus Tipo 2/sangue , Feminino , Estudo de Associação Genômica Ampla , Genótipo , Haplótipos , Humanos , Modelos Logísticos , Masculino , Síndrome Metabólica/sangue , Síndrome Metabólica/genética , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Análise de Componente Principal , Resistina/sangue , Taiwan
11.
Circ J ; 78(1): 135-40, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24107360

RESUMO

BACKGROUND: Tamoxifen is used for breast cancer treatment and has been reported to be beneficial for the cardiovascular system, but it is unclear whether tamoxifen exhibits a favorable cardiovascular effect in Asian patients. METHODS AND RESULTS: From January, 1998 to December, 2006, a breast cancer cohort study was conducted using the Taiwan National Health Insurance database. Patients were divided according to whether tamoxifen was used. Study endpoints were occurrence of acute myocardial infarction (AMI), ischemic or hemorrhagic stroke and total cardiovascular events. A total of 3,690 female subjects were enrolled (mean age 50.1±11.3), 2,056 of whom received tamoxifen and 1,634 did not. During a mean follow-up of 6.9 years, the tamoxifen group had a significantly lower incidence of AMI (0.15% vs. 0.67%, P=0.008), ischemic stroke (1.99% vs. 3.30%, P=0.008), hemorrhagic stroke (0.15% vs. 0.55%, P=0.029), and total cardiovascular events (2.24% vs. 4.16%, P<0.001) than the non-exposed group. After adjusting for comorbidities, tamoxifen was independently associated with a reduced risk of myocardial infarction (hazard ratio [HR] 0.22; 95% confidence interval [CI] 0.07-0.70, ischemic stroke (HR 0.52; 95% CI 0.35-0.78), hemorrhagic stroke (HR 0.25; 95% CI 0.07-0.92), and total cardiovascular events (HR 0.54; 95% CI 0.37-0.78). CONCLUSIONS: In Asian female breast cancer patients, tamoxifen use was associated with reduced risks of AMI, ischemic, hemorrhagic stroke and total cardiovascular events.


Assuntos
Antineoplásicos Hormonais/administração & dosagem , Povo Asiático , Neoplasias da Mama/tratamento farmacológico , Infarto do Miocárdio/epidemiologia , Acidente Vascular Cerebral/epidemiologia , Tamoxifeno/administração & dosagem , Adulto , Neoplasias da Mama/epidemiologia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Infarto do Miocárdio/etiologia , Fatores de Risco , Acidente Vascular Cerebral/etiologia , Taiwan
12.
BMC Cardiovasc Disord ; 14: 187, 2014 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-25510597

RESUMO

BACKGROUND: Metformin, an insulin-sensitizer, may correct several physiologic abnormalities owing to insulin resistance in patients with type 2 diabetes mellitus (DM). The effects of metformin on venous thrombosis in patient with type 2 DM have not been reported. Our study strived to explore the relationship of metformin therapy and the subsequent development of deep vein thrombosis (DVT) using a nationwide, population-based database. METHODS: From 1997 to 2003, we identified a study cohort consisting of patients with type 2 DM using metformin 7154 cases in the National Health Insurance Research Database. A control cohort without metformin, matched for age, sex, comorbidities, and medications was selected for comparison. RESULTS: Of the 14945 patients (7167 patients with metformin vs. 7778 control), 60 (0.40%) patients developed DVT during a mean follow-up period of 3.74 years, including 16 (0.21%) from the cohort with metformin and 44 (0.56%) from the control group. Subjects with metformin experienced a 0.427 fold (95% confidence interval 0.240-0.758; P = 0.004) changes of risk reduction in development of DVT, which was independent of age, sex and co-morbidities. Kaplan-Meier analysis also revealed metformin therapy is associated with lower occurrence of DVT (log-rank test, P = 0.001). CONCLUSIONS: Metformin may have protective effect in patients with type 2 DM for DVT.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Trombose Venosa/prevenção & controle , Idoso , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Análise por Pareamento , Pessoa de Meia-Idade , Fatores de Risco , Taiwan/epidemiologia , Trombose Venosa/epidemiologia
13.
Retina ; 34(9): 1867-74, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24743638

RESUMO

PURPOSE: To investigate the incidence and risk factors for central serous chorioretinopathy (CSCR) in adults who use oral corticosteroids in Taiwan. METHODS: This is a population-based nested case-control study between 2000 and 2008. From the Taiwan National Health Insurance Research Database, adults who were repetitively prescribed oral corticosteroids were included as the study cohort. Of those, newly diagnosed CSCR cases were identified and the CSCR incidence was calculated. Subjects matched for age, gender, and the enrollment time were randomly selected as the controls. Corticosteroids use was compared between the cases and controls. Poisson and conditional logistic regressions were used to analyze the potential risk factors for CSCR. RESULTS: Among 142,035 oral corticosteroids users, 320 cases of CSCR were identified, and 1,554 matched controls were randomly selected. The incidence rate of CSCR was 44.4 (95% confidence interval, 39.5-49.3) cases per 100,000 person-years. Multivariate Poisson regression showed that male patients and those aged 35 years to 44 years had significantly higher incidence rates of CSCR. There were no differences in either median dosage or mean duration of systemic corticosteroid treatment between the cases and controls. After adjusting for other confounders, current use of oral corticosteroids was found to be significantly associated with the risk of CSCR (odds ratio, 2.40; 95% confidence interval, 1.49-3.89). CONCLUSION: Male gender, middle age, and current use of oral corticosteroids were found to be the risk factors for CSCR. However, oral corticosteroids dosage and treatment duration were not associated with the CSCR risk.


Assuntos
Coriorretinopatia Serosa Central/epidemiologia , Prescrições de Medicamentos/estatística & dados numéricos , Glucocorticoides/administração & dosagem , Administração Oral , Adulto , Idoso , Estudos de Casos e Controles , Coriorretinopatia Serosa Central/induzido quimicamente , Bases de Dados Factuais , Feminino , Glucocorticoides/efeitos adversos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Programas Nacionais de Saúde/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Taiwan , Adulto Jovem
14.
Science ; 384(6696): eadh7691, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38723081

RESUMO

The Hubbard model is an iconic model in quantum many-body physics and has been intensely studied, especially since the discovery of high-temperature cuprate superconductors. Combining the complementary capabilities of two computational methods, we found superconductivity in both the electron- and hole-doped regimes of the two-dimensional Hubbard model with next-nearest-neighbor hopping. In the electron-doped regime, superconductivity was weaker and was accompanied by antiferromagnetic Néel correlations at low doping. The strong superconductivity on the hole-doped side coexisted with stripe order, which persisted into the overdoped region with weaker hole-density modulation. These stripe orders varied in fillings between 0.6 and 0.8. Our results suggest the applicability of the Hubbard model with next-nearest hopping for describing cuprate high-transition temperature (Tc) superconductivity.

15.
Rheumatology (Oxford) ; 52(1): 161-5, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23238980

RESUMO

OBJECTIVE: To investigate whether SSc increases the risk of ischaemic stroke in a large, nationwide cohort study. METHODS: From the Registry of Catastrophic Illness in Taiwan, we obtained data for 1280 patients with a diagnosis of SSc from 1997 to 2006. We also obtained data for 10 age-, gender-, comorbidity- and enrolment date-matched controls per SSc patient from the Longitudinal Health Insurance 2000. All study subjects were followed up from the date of enrolment until they developed ischaemic stroke, death or to the end of 2006, whichever was earlier. We used Cox's regression model with adjustment for age, gender and comorbid disorders to assess the independent factors in determining the risk of developing ischaemic stroke. RESULTS: We identified 1238 SSc patients and 12 380 controls. Among these patients, 765 (86 SSc patients and 679 controls) had developed ischaemic stroke during the median 4.7 years (0.1-10.0 years) of follow-up. Patients with SSc had a significantly higher incidence of ischaemic stroke when compared with controls (16.5/1000 vs 11.5/1000 person-year). After multivariate analysis, SSc was associated with a 43% increase in ischaemic stroke risk (95% CI 12%, 83%; P = 0.004). Additionally, the medication usually being prescribed among SSc patients did not alter the risk of further ischaemic stroke. CONCLUSION: We conclude that SSc is independently associated with higher risk of ischaemic stroke development.


Assuntos
Isquemia Encefálica/epidemiologia , Escleroderma Sistêmico/epidemiologia , Acidente Vascular Cerebral/epidemiologia , Adulto , Idoso , Comorbidade , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Estudos Retrospectivos , Risco , Taiwan/epidemiologia
16.
Psychosom Med ; 75(1): 30-5, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23107841

RESUMO

OBJECTIVE: The aim of the present study was to investigate the association between panic disorder (PD) and atrial fibrillation (AF). METHODS: We used a nationwide population-based data set from Taiwan. A total of 3888 patients with PD and without a diagnosis of AF from a sampled cohort data set of 1,000,000 were included in the study group. Ten people without PD and AF were selected for every 1 patient in the study group, matched by propensity score matching according to time of enrollment, age, sex, and comorbidities. We performed log-rank tests to analyze differences in accumulated AF-free survival rates between the two groups. Cox proportional hazard regressions were performed to evaluate the independent factors determining the longitudinal hazard of AF. RESULTS: During a maximal 7-year follow-up, 48 patients from the study group (1.2% of the patients with PD) and 358 from the control group (0.9% of the patients without PD) were newly diagnosed as having AF. Patients with PD had a significantly higher incidence of AF (hazard ratio [HR] = 1.54 [1.14-2.09]; log-rank test, p = .004). After Cox model adjustment for risk factors and comorbidities, PD (HR = 1.73, 95% confidence interval [CI] = 1.26-2.37), age (HR = 1.07, 95% CI = 1.06-1.08), male sex (HR = 1.26, 95% CI = 1.03-1.55), hypertension (HR = 2.00, 95% CI = 1.55-2.56), history of coronary artery disease (HR = 1.45, 95% CI = 1.15-1.82), congestive heart failure (HR = 2.46; 95% CI, 1.84-3.30), and valvular heart disease (HR = 2.83, 95% CI = 1.85-4.42) were independently associated with increased risk of AF. CONCLUSIONS: PD is independently associated with higher incidence of AF to be diagnosed in the future. Larger prospective studies or meta-analysis are suggested to confirm the findings.


Assuntos
Fibrilação Atrial/psicologia , Transtorno de Pânico/psicologia , Adulto , Fatores Etários , Fibrilação Atrial/epidemiologia , Doença da Artéria Coronariana/epidemiologia , Intervalo Livre de Doença , Métodos Epidemiológicos , Feminino , Doenças das Valvas Cardíacas/epidemiologia , Humanos , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Transtorno de Pânico/epidemiologia , Fatores Sexuais , Taiwan/epidemiologia
17.
Eur J Clin Invest ; 43(5): 449-56, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23496329

RESUMO

BACKGROUND: High-sensitivity C-reactive protein (hs-CRP) is a sensitive inflammatory marker suggested for cardiovascular risk stratification. This study aimed to assess the potential genetic determinants for serum hs-CRP levels in a cohort with well-controlled nondiabetic hypertension. MATERIALS AND METHODS: Ethnic Chinese nondiabetic hypertensive patients were enrolled in Taiwan. They received comprehensive evaluation including history taking, physical check-up, blood pressure (BP) measurement, 24-h ambulatory BP monitoring and blood sampling. Serum hs-CRP levels were determined. CRP genotyping was performed in two stages. In the first stage, 4 single-nucleotide polymorphisms (SNPs) of CRP including rs1572970, rs2794520, rs3093077 and rs2808630 were investigated in the 400 participants. In the second stage, only SNPs significant in the first stage were selected for complete genotyping in the whole population. RESULTS: Total 915 consecutive patients (40·9 ± 7·3 years, 68·3% male) completed the study. Two of the 4 SNPs including rs1572970 and rs3093077 were correlated to hs-CRP levels in the whole population. Stepwise multiple linear regression indicated that age (P = 0·001), body mass index (P < 0·001), waist-hip ratio (P = 0·032), smoking habits (P = 0·001), night-time systolic BP (P = 0·040), total cholesterol (P = 0·005) and CRP rs3093077 polymorphism (P < 0·001) were independently associated with serum hs-CRP levels. Overall, genetic correlates explained 2·4%, BMI explained 11·9% and all other clinical correlates explained 4·8% of interindividual variability in serum hs-CRP level. CONCLUSION: C-reactive protein genotype contributed limitedly to serum hs-CRP levels in subjects with well-controlled hypertension, suggesting the impacts of clinical rather than genetic determinants to serum hs-CRP levels for cardiovascular risk stratification in this intermediate-risk Taiwanese cohort.


Assuntos
Povo Asiático/etnologia , Proteína C-Reativa/genética , Doenças Cardiovasculares/genética , Hipertensão/genética , Polimorfismo de Nucleotídeo Único/genética , Adulto , Biomarcadores/metabolismo , Pressão Sanguínea , Índice de Massa Corporal , Feminino , Técnicas de Genotipagem , Humanos , Hipertensão/etnologia , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Taiwan/epidemiologia
18.
Circ J ; 77(2): 405-10, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23149416

RESUMO

BACKGROUND: Although emerging evidence shows angiotensin-receptor blockers (ARBs) may have a beneficial effect against Alzheimer's disease (AD), the association is not consistent. We investigated the association between ARB use and the risk of development of AD using a nationwide, population-based cohort database in Taiwan. METHODS AND RESULTS: In total, 16,426 newly diagnosed hypertensive patients who were administered ARB without a previous diagnosis of AD were identified from the Taiwan National Health Insurance database. The comparison group consisted of hypertensive patients who did not receive ARB, and were matched to exposed individuals using propensity score by enrolled time, age, sex, and comorbidities. During an average of 5.24 ± 2.01 years of follow-up, a total of 1,031 cases (3.13%) of new AD occurred. The log-rank test showed no significant difference in the AD occurrence rate between subjects exposed to ARBs and non-exposed controls [488 (2.97%) vs. 543 (3.29%), P=0.221]. After adjusting for age, sex, comorbidities, and medications, only advanced age [hazard ratio (HR) 1.12, 95% confidence interval (CI) 1.12-1.13, P<0.001), female sex (HR 1.18, 95% CI 1.04-1.33, P=0.011), diabetes (HR 1.53, 95% CI 1.31-1.79, P<0.001), but not ARB (HR 1.08, 95% CI 0.96-1.22, P=0.222) were independently associated with AD development. CONCLUSIONS: The use of ARB was not significantly associated with a reduction of risk of AD in Asian patients with essential hypertension.


Assuntos
Doença de Alzheimer/mortalidade , Bloqueadores do Receptor Tipo 1 de Angiotensina II/uso terapêutico , Anti-Hipertensivos/uso terapêutico , Hipertensão/tratamento farmacológico , Hipertensão/mortalidade , Adulto , Distribuição por Idade , Idoso , Isquemia Encefálica/mortalidade , Estudos de Coortes , Comorbidade , Bases de Dados Factuais/estatística & dados numéricos , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Programas Nacionais de Saúde/estatística & dados numéricos , Fatores de Risco , Distribuição por Sexo , Acidente Vascular Cerebral/mortalidade , Análise de Sobrevida , Taiwan/epidemiologia
19.
Prev Med ; 54(6): 431-3, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22504030

RESUMO

OBJECTIVE: The effects of influenza vaccination on ischemic heart disease (IHD) patients remain controversial. The purpose of this study was to evaluate the effects of influenza vaccination on all-cause mortality and hospitalization for cardiovascular disease in elderly IHD patients. METHODS: Elderly patients (>65 years old) with IHD, including ischemic heart failure and coronary artery disease between January 1997 and September 2002 were identified by using the Taiwan National Health Insurance Research Database. The association between influenza vaccination and all-cause mortality and hospitalization due to cardiovascular disease was analyzed. RESULTS: We included 5048 patients. During the influenza season, influenza vaccination was associated with a reduced risk of all-cause mortality [hazard ratio (HR), 0.42; 95% confidence interval (CI) 0.35-0.49] and hospitalization for cardiovascular disease (HR, 0.84; 95% CI, 0.76-0.93). During the non-influenza season, vaccination was associated with a reduced risk of mortality (HR, 0.78; 95% CI, 0.68-0.90) in elderly IHD patients. CONCLUSION: Influenza vaccination was associated with a reduced risk of all-cause mortality in elderly IHD patients throughout the whole year, as well as a reduced risk of hospitalization during the influenza season.


Assuntos
Hospitalização/estatística & dados numéricos , Vacinas contra Influenza/administração & dosagem , Influenza Humana/prevenção & controle , Mortalidade/tendências , Isquemia Miocárdica/epidemiologia , Avaliação de Resultados em Cuidados de Saúde , Vacinação , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Hospitalização/tendências , Humanos , Masculino , Isquemia Miocárdica/mortalidade , Vigilância da População , Estações do Ano , Taiwan/epidemiologia
20.
PLoS One ; 17(6): e0270284, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35749416

RESUMO

Emergency department visits (EDV) are common among older adults with and without dementia. The risk factors and demands of EDVs for people with dementia have been well studied; however, the association between EDVs and conversion to dementia among people with predementia has not been thoroughly explored. To study the predictive value of EDVs in predementia's progression to dementia. The baseline predementia cohort registered from September 2015 to August 2017, with longitudinal follow-up in the History-based Artificial Intelligent Clinical Dementia Diagnostic System database, was retrospectively analyzed. The rates of conversion among the different EDVs were compared. Multivariate logistic regression and Cox proportional hazards analyses were applied to study the influence of EDVs on progression. Age, education, sex, neuropsychological tests, activities of daily living, neuropsychiatric symptoms, parkinsonism, and multiple vascular risk factors were adjusted for. A total of 512 participants were analyzed, including 339 (66.2%) non-converters and 173 (33.8%) converters with a mean follow-up of 3.3 (range 0.4-6.1) and 2.8 (range 0.5-5.9) years, respectively. Compared to people without EDV (EDV 0), the hazard ratios for conversion to dementia were 3.6, 5.9, and 6.9 in those with EDV once (EDV 1), twice (EDV 2), and more than twice (EDV >2), respectively. In addition, older age, lower education, poorer cognition, poorer ADL performance, and longer follow-up periods also increased the conversion rates. EDVs in the predementia stages highly predict progression to dementia. Therefore, a sound public health as well as primary healthcare system that provide strategies for better management of mental and physical condition might help prevention of EDVs among older people in the predementia stages.


Assuntos
Atividades Cotidianas , Demência , Atividades Cotidianas/psicologia , Idoso , Demência/diagnóstico , Demência/epidemiologia , Demência/psicologia , Serviço Hospitalar de Emergência , Humanos , Testes Neuropsicológicos , Estudos Retrospectivos
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