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1.
Zhonghua Nan Ke Xue ; 29(8): 716-720, 2023 Aug.
Artigo em Zh | MEDLINE | ID: mdl-38619518

RESUMO

OBJECTIVE: The modified day surgery procedure was compared with traditional inpatient procedure and standard day surgery procedure of concealed penile surgery to investigate its advantages, as well as the feasibility of promoting it in our country. METHODS: Retrospective analyzing the clinical data between 135 cases of the concealed penis in children who underwent modified day surgery (day group) and 101 cases who underwent hospitalization surgery (hospitalization group) at the Second Hospital of Hebei Medical University and the results of follow-up.The modified day surgery procedure involves the establishment of dedicated day wards in each surgical department, where the patient's condition is monitored until 8 o'clock the following morning to assess their discharge eligibility.The children's clinical data was divided into two groups to compare clinical parameters, including age at surgery, bleeding volume, operation time, hospitalization expenses, day of hospitalization, and the occurrence of short-term complications before the initial dressing change after surgery.The satisfaction survey of the children was conducted among three distinct groups: the modified day group, the standard day group, and the hospitalization group enabling a comparison of satisfaction levels among these groups. RESULTS: The mean ages of the inpatient and day surgery groups were 8.92±4.42 years old and 11.85±4.43 years old, respectively. No significant differences were observed between these two groups regarding operation time, bleeding volume, and postoperative complications (P>0.05). Compared to the inpatient group, the mean inpatient time and the hospitalization cost of the day group decreased by 69% and 27%, respectively (P<0.05). The patients in the modified procedure group reported the highest satisfaction among the three groups. CONCLUSION: Modified day surgery procedure offers advantages over the standard day surgery procedure and traditional inpatient surgical procedures for the operative treatment of the concealed penis, which makes it suitable for large-scale popularization in China.


Assuntos
Procedimentos Cirúrgicos Ambulatórios , Líquidos Corporais , Criança , Masculino , Humanos , Recém-Nascido , Estudos Retrospectivos , China , Remoção de Dispositivo
2.
J Formos Med Assoc ; 121(8): 1506-1514, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34782197

RESUMO

BACKGROUND/PURPOSE: Previous studies have seldom investigated the psychological factors that are associated with dissatisfaction with healthcare services. We therefore examined the associations of depression and anxiety with service dissatisfaction among older adults. METHODS: A community-based health survey was conducted from 2012 to 2016. Residents aged ≥65 years were randomly recruited from Yilan City, Taiwan. Besides overall dissatisfaction, we assessed dissatisfaction with physicians' ability, physicians' attitude, and waiting time. The Hospital Anxiety and Depression Scale was used to detect depressive and anxiety symptoms with optimal cut-off points of 3 for the anxiety subscale and 6 for the depression subscales. RESULTS: Of the 3480 residents included in this study, the overall dissatisfaction rate was 7.9%. After controlling for covariates, depressive and anxiety symptoms were consistently correlated with the various dimensions of dissatisfaction. More specifically, depressive symptoms were associated with overall dissatisfaction and dissatisfaction with physicians' ability and attitude. Conversely, anxiety was uniquely associated with dissatisfaction with waiting time. CONCLUSION: Psychological symptoms were consistent correlates of dissatisfaction with healthcare services among older adults, although the specific symptoms had different associations with the various dimensions of dissatisfaction.


Assuntos
Ansiedade , Depressão , Idoso , Ansiedade/epidemiologia , Transtornos de Ansiedade , Atenção à Saúde , Depressão/diagnóstico , Depressão/epidemiologia , Humanos , Taiwan
3.
J Am Chem Soc ; 143(51): 21657-21666, 2021 12 29.
Artigo em Inglês | MEDLINE | ID: mdl-34914877

RESUMO

γ-Lactams form important structural cores of a range of medicinally relevant natural products and clinical drugs, principal examples being the new generation of immunomodulatory imide drugs (IMiDs) and the brivaracetam family. Compared to conventional multistep synthesis, an intramolecular γ-C-H amination of aliphatic amides would allow for the direct construction of valuable γ-lactam motifs from abundant amino acid precursors. Herein we report a novel 2-pyridone ligand enabled Pd(II)-catalyzed γ-C(sp3)-H lactamization of amino acid derived native amides, providing the convenient synthesis of γ-lactams, isoindolinones, and 2-imidazolidinones. C6-Substitution of the 2-pyridone ligand is crucial for the lactam formation. This protocol features the use of N-acyl amino acids, which serve as both the directing group and cyclization partner, practical and environmentally benign tert-butyl hydrogen peroxide (TBHP) as the sole bystanding oxidant, and a broad substrate scope. The utility of this protocol was demonstrated through the two-step syntheses of a lenalidomide analog and brivaracetam from readily available carboxylic acids and amino acids.


Assuntos
Amidas/química , Lactamas/química , Paládio/química , Catálise , Estrutura Molecular
4.
Bioorg Med Chem Lett ; 30(7): 126955, 2020 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-32035698

RESUMO

This article describes the discovery of aryl hydroxy pyrimidinones and the medicinal chemistry efforts to optimize this chemotype for potent APJ agonism. APJ is a G-protein coupled receptor whose natural agonist peptide, apelin, displays hemodynamic improvement in the cardiac function of heart failure patients. A high throughput screen was undertaken to identify small molecule hits that could be optimized to mimic the apelin in vitro response. A potent and low molecular weight aryl hydroxy pyrimidinone analog 30 was identified through optimization of an HTS hit and medicinal chemistry efforts to improve its properties.


Assuntos
Receptores de Apelina/agonistas , Pirimidinonas/farmacologia , Descoberta de Drogas , Células HEK293 , Ensaios de Triagem em Larga Escala , Humanos , Estrutura Molecular , Pirimidinonas/síntese química , Relação Estrutura-Atividade
5.
Sleep Breath ; 24(3): 1237-1245, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31907823

RESUMO

PURPOSE: Intermittent hypoxia is a characteristic pathological change in obstructive sleep apnoea (OSA) that can initiate oxidative stress reaction and pro-inflammatory cytokine release. The purpose of this study was to assess the effect and protective mechanism of Astragaloside IV (AS-IV) in intermittent hypoxia-induced human lung epithelial Beas-2B cells. METHODS: Human lung epithelial Beas-2B cells were exposed to intermittent hypoxia or normoxia in the absence or presence of AS-IV. MTT assay was performed to determine the cell viability. The levels of reactive oxygen species (ROS), lactate dehydrogenase (LDH), malonaldehyde (MDA), and superoxide dismutase (SOD) were measured to evaluate oxidative stress. The levels of cytokines interleukin (IL)-8, IL-1ß, and IL-6 were evaluated by enzyme-linked immunosorbent assay and real-time PCR. The expression of Toll-like receptor 4 (TLR4), mitogen-activated protein kinase (MAPK), and nuclear transcription factor-kappa B (NF-κB) signalling pathways was analysed by western blot. RESULTS: The results showed that AS-IV significantly reduced the levels of ROS, LDH, MDA, IL-8, IL-1ß, and IL-6, and increased the level of SOD in intermittent hypoxia-induced Beas-2B cells. It also suppressed the phosphorylation of MAPKs, including P38, c-Jun N-terminal kinase and extracellular signal-regulated kinase, and inhibited the activation of the NF-κB signalling pathway by reducing the phosphorylation of IκBα and p65. CONCLUSIONS: AS-IV attenuates inflammation and oxidative stress by inhibiting TLR4-mediated MAPK/NF-κB signalling pathways in intermittent hypoxia-induced Beas-2B cells.


Assuntos
Hipóxia/tratamento farmacológico , Inflamação/tratamento farmacológico , Pulmão/efeitos dos fármacos , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Proteínas Serina-Treonina Quinases/efeitos dos fármacos , Mucosa Respiratória/efeitos dos fármacos , Saponinas/farmacologia , Apneia Obstrutiva do Sono/tratamento farmacológico , Triterpenos/farmacologia , Células Cultivadas , Humanos , Hipóxia/etiologia , Hipóxia/imunologia , Hipóxia/metabolismo , Inflamação/etiologia , Inflamação/imunologia , Inflamação/metabolismo , Pulmão/citologia , Pulmão/imunologia , Pulmão/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Mucosa Respiratória/imunologia , Mucosa Respiratória/metabolismo , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/imunologia , Apneia Obstrutiva do Sono/metabolismo , Quinase Induzida por NF-kappaB
6.
Oncologist ; 24(9): e845-e853, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30796154

RESUMO

BACKGROUND: Helicobacter pylori (HP) can induce epithelial cells and intestinal metaplasia with genetic damage that makes them highly susceptible to the development of gastric cancer (GC). MATERIALS AND METHODS: Between 2005 and 2010, 356 patients with gastric cancer who received curative surgery were enrolled. Analysis of HP, Epstein-Barr virus (EBV) infection, PIK3CA amplification, and mutation analysis of 68 mutations in eight genes using a mass spectrometric single-nucleotide polymorphism genotyping technology was conducted. The clinicopathological characteristics of patients with or without HP infection were compared. RESULTS: Among the 356 patients, 185 (52.0%) had HP infection. For intestinal-type GC, patients with HP infection were more likely to be younger and had fewer PI3K/AKT pathway genetic mutations than those without HP infection. For diffuse-type GC, patients with HP infection were characterized by less male predominance, less lymphoid stroma, fewer microsatellite instability-high tumors, and fewer PI3K/AKT pathway genetic mutations than those without HP infection. Patients with HP infection had less tumor recurrence and a better 5-year overall survival (87.7% vs. 73.9%, p = .012) and disease-free survival (64.1% vs. 51.3%, p = .013) than those without HP infection, especially for intestinal-type GC. For EBV-negative GC, patients with HP infection had fewer PI3K/AKT pathway mutations and a better 5-year overall survival and disease-free survival than those without HP infection. Multivariate analysis demonstrated that HP infection was an independent prognostic factor regarding overall survival and disease-free survival. CONCLUSION: Patients with GC with HP infection were associated with fewer PI3K/AKT pathway genetic mutations and better survival than those without HP infection, especially for EBV-negative and intestinal-type GC. IMPLICATIONS FOR PRACTICE: Patients with gastric cancer with Helicobacter pylori (HP) infection had fewer PI3K/AKT pathway genetic mutations, less tumor recurrence, and better survival than those without HP infection, especially for Epstein-Barr virus (EBV)-negative and intestinal-type gastric cancer. HP infection is an independent prognostic factor regarding overall survival and disease-free survival. Future in vivo and in vitro studies of the correlation among HP infection, PI3K/AKT pathway, and EBV infection in gastric cancer are required.


Assuntos
Infecções por Helicobacter/genética , Helicobacter pylori/isolamento & purificação , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/microbiologia , Neoplasias Gástricas/genética , Neoplasias Gástricas/microbiologia , Idoso , Feminino , Infecções por Helicobacter/enzimologia , Infecções por Helicobacter/microbiologia , Infecções por Helicobacter/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Mutação , Gradação de Tumores , Recidiva Local de Neoplasia/enzimologia , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Fosfatidilinositol 3-Quinases/genética , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/genética , Proteínas Proto-Oncogênicas c-akt/metabolismo , Estudos Retrospectivos , Neoplasias Gástricas/enzimologia , Neoplasias Gástricas/patologia , Taxa de Sobrevida
7.
Int J Mol Sci ; 20(2)2019 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-30669423

RESUMO

Pollen is the male gametophyte of higher plants. Its major function is to deliver sperm cells to the ovule to ensure successful fertilization. During this process, many interactions occur among pollen tubes and pistil cells and tissues, and calcium ion (Ca2+) dynamics mediate these interactions among cells to ensure that pollen reaches the embryo sac. Although the precise functions of Ca2+ dynamics in the cells are unknown, we can speculate about its roles on the basis of its spatial and temporal characteristics during these interactions. The results of many studies indicate that calcium is a critical element that is strongly related to pollen germination and pollen tube growth.


Assuntos
Cálcio/metabolismo , Germinação , Desenvolvimento Vegetal , Fenômenos Fisiológicos Vegetais , Tubo Polínico/crescimento & desenvolvimento , Tubo Polínico/metabolismo , Pólen/metabolismo , Flores/crescimento & desenvolvimento , Flores/metabolismo
8.
BMC Geriatr ; 18(1): 90, 2018 04 13.
Artigo em Inglês | MEDLINE | ID: mdl-29653515

RESUMO

BACKGROUND: Fall episodes are not unusual among community residents, especially the elderly, and lower muscle strength is an important issue to address in order to prevent falls. METHODS: A community health survey was conducted in a suburban area of Taiwan, and 1067 older adults were selected for enrollment in the present study. All the enrolled subjects had been visited at their homes; the subjects' strength of both hands and muscle mass of both legs were measured and well-established questionnaires were finished by certificated paramedic staffs. RESULTS: The incidence of fall episodes in the previous 1 year in the Yilan elderly population was 15.1%, and the female predominance was significant. A significantly higher prevalence of cataracts was found in group who experienced a fall in the past year (64% vs. 54.9% in the non-fall group). Mild or more severe dementia was much more prevalent in the group who experienced a recent fall (33.8% vs. 25.7% in the non-fall group). The strength of both hands tested as the physical function was 17.6 ± 8.0 kg in the recent fall group, significantly weaker than that in the non-fall group (20.7 ± 8.7 kg). Multivariate regression analysis revealed a greater weekly exercise duration and greater strength of both hands reduced the occurrence of falls among the whole and the female population. The standardized effect sizes of hand grip strength between both groups, not trivial, were 0.29 and 0.37 for the total population and the female subpopulation respectively. CONCLUSIONS: Less weekly exercise duration and weaker muscle strength were f ound to be independent risk factors of fall episode(s) in an elderly Taiwanese population, especially in the female sub-population. Muscle strength, measured by average of both hands grip strength, was the most significantly factor of one-year fall episode(s) accessed retrospectively.


Assuntos
Acidentes por Quedas/estatística & dados numéricos , Exercício Físico/fisiologia , Inquéritos Epidemiológicos , Força Muscular/fisiologia , Acidentes por Quedas/prevenção & controle , Idoso , Feminino , Humanos , Incidência , Masculino , Prevalência , Estudos Retrospectivos , Fatores de Risco , Taiwan/epidemiologia
9.
BMC Surg ; 17(1): 68, 2017 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-28606075

RESUMO

BACKGROUND: As life expectancy continues to increase around the world, the use of minimally invasive surgery (MIS) could be beneficial for octogenarian and older gastric cancer patients. METHODS: A total of 359 gastric cancer patients who underwent curative surgery between March 2011 and March 2015 were enrolled; 80 of these patients (22.2%) were octogenarians and older. Surgical approaches included MIS (50 laparoscopic and 65 robotic) and open surgery (n = 244). Surgical outcomes of MIS and open surgery in octogenarian and older patients were compared with younger patients. RESULTS: Among octogenarian and older patients, relative to open surgery (n = 53), MIS (n = 27) was associated with less operative blood loss, a shorter postoperative hospital stay and similar rates of surgical complications and mortality. For MIS (n = 115), octogenarian and older patients exhibited similar postoperative outcomes to those of younger patients. For open surgery (n = 244), relative to younger patients, octogenarian and older patients experienced longer postoperative hospital stays, a higher rate of wound infection and a higher incidence of pneumonia. CONCLUSIONS: MIS for gastric cancer is beneficial and can be performed safely in octogenarian and older patients.


Assuntos
Laparoscopia/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Procedimentos Cirúrgicos Robóticos/métodos , Neoplasias Gástricas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Perda Sanguínea Cirúrgica , Estudos de Coortes , Feminino , Humanos , Laparoscopia/efeitos adversos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/efeitos adversos , Estudos Retrospectivos , Resultado do Tratamento
10.
Int J Cancer ; 138(12): 2974-83, 2016 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-26815009

RESUMO

With the progression of molecular techniques, the detection of circulating plasma DNA (cpDNA) is clinically feasible. However, the role of the cpDNA levels in gastric cancer is not well understood. This study assessed the mutational profile in primary tumors and clarified the clinical utility of quantitative and qualitative cpDNA alterations in 277 patients with advanced gastric cancer. The concentrations of cpDNA were measured by TaqMan qPCR, and 68 mutations in 8 genes were studied for cpDNA mutations. The median cpDNA concentrations in patients with stages I, II, and III gastric cancer were 3979, 3390 and 4278 copies/mL, respectively, and increased to 11,380 copies/mL in patients with Stage IV gastric cancer (p < 0.001). Among the 35 patients harboring cpDNA mutations, Stage IV patients (100%) were more likely to display high cpDNA levels than were Stage I (33.3%), II (75%) and III patients (66.7%) (p = 0.037). Patients displaying high cpDNA levels were more likely to experience peritoneal recurrence and exhibited significantly lower 5-year overall survival rates (39.2% vs. 45.8%, p = 0.039) than did patients displaying low cpDNA levels. Only for late stage (Stages III or IV) gastric cancer, patients harboring cpDNA mutations were more likely to experience vascular invasion (20% vs. 2.4%, p = 0.036) and exhibited a lower 5-year overall survival rate than did those lacking cpDNA mutations (5.6% vs. 31.5%, p = 0.028). High cpDNA levels are associated with peritoneal recurrence and poor prognosis in patients with advanced gastric cancer; harboring cpDNA mutations is associated with poor prognosis among patients with late stage gastric cancer.


Assuntos
Adenocarcinoma/sangue , Biomarcadores Tumorais/sangue , DNA de Neoplasias/sangue , Recidiva Local de Neoplasia/sangue , Neoplasias Gástricas/sangue , Adenocarcinoma/genética , Adenocarcinoma/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/genética , Análise Mutacional de DNA , DNA de Neoplasias/genética , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/mortalidade , Modelos de Riscos Proporcionais , Neoplasias Gástricas/genética , Neoplasias Gástricas/mortalidade , Adulto Jovem
11.
BMC Cancer ; 16: 697, 2016 08 30.
Artigo em Inglês | MEDLINE | ID: mdl-27577936

RESUMO

BACKGROUND: Human epidermal growth factor receptor-2 (HER2) is a transmembrane tyrosine kinase receptor that is overexpressed in 25 to 30 % of human breast cancers and is preferentially localized in lipid rafts. Stomatin is a membrane protein that is absent from the erythrocyte plasma membrane in patients with congenital stomatocytosis and is the major component of the lipid raft. RESULTS: In a total of 68 clinical cases of HER2-positive breast cancer, the absence of stomatin expression was associated with a decreased 5-year survival (65 % vs. 93 %, p = 0.005) by survival analysis. For stage I-III HER2-positive breast cancer, the absence of stomatin expression was associated with a decreased 5-year disease-free survival (57 % vs. 81 %, p = 0.016) and was an independent prognostic factor by multivariate analysis. Negative stomatin expression predicts distant metastases in a hazard ratio of 4.0 (95 % confidence interval from 1.3 to 12.5). CONCLUSIONS: These results may suggest that stomatin is a new prognostic indicator for HER2-positive breast cancer.


Assuntos
Biomarcadores Tumorais/análise , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Proteínas de Membrana/biossíntese , Adulto , Idoso , Neoplasias da Mama/metabolismo , Neoplasias da Mama/mortalidade , Carcinoma Ductal de Mama/metabolismo , Carcinoma Ductal de Mama/mortalidade , Intervalo Livre de Doença , Feminino , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Prognóstico , Modelos de Riscos Proporcionais , Receptor ErbB-2/biossíntese
13.
Neurosurg Focus ; 40(6): E4, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27246487

RESUMO

OBJECTIVE This study aimed to estimate the risk of spinal cord injury (SCI) in patients with cervical spondylotic myelopathy (CSM) with and without ossification of posterior longitudinal ligament (OPLL). Also, the study compared the incidence rates of SCI in patients who were managed surgically and conservatively. METHODS This retrospective cohort study covering 15 years analyzed the incidence of SCI in patients with CSM. All patients, identified from the National Health Insurance Research Database, were hospitalized with the diagnosis of CSM and followed up during the study period. These patients with CSM were categorized into 4 groups according to whether they had OPLL or not and whether they received surgery or not: 1) surgically managed CSM without OPLL; 2) conservatively managed CSM without OPLL; 3) surgically managed CSM with OPLL; and 4) conservatively managed CSM with OPLL. The incidence rates of subsequent SCI in each group during follow-up were then compared. Kaplan-Meier and Cox regression analyses were performed to compare the risk of SCI between the groups. RESULTS Between January 1, 1999, and December 31, 2013, there were 17,258 patients with CSM who were followed up for 89,003.78 person-years. The overall incidence of SCI in these patients with CSM was 2.022 per 1000 person-years. Patients who had CSM with OPLL and were conservatively managed had the highest incidence of SCI, at 4.11 per 1000 person-years. Patients who had CSM with OPLL and were surgically managed had a lower incidence of SCI, at 3.69 per 1000 person-years. Patients who had CSM without OPLL and were conservatively managed had an even lower incidence of SCI, at 2.41 per 1000 person-years. Patients who had CSM without OPLL and were surgically managed had the lowest incidence of SCI, at 1.31 per 1000 person-years. The Cox regression model demonstrated that SCIs are significantly more likely to happen in male patients and in those with OPLL (HR 2.00 and 2.24, p < 0.001 and p = 0.007, respectively). Surgery could significantly lower the risk for approximately 50% of patients (HR 0.52, p < 0.001). CONCLUSIONS Patients with CSM had an overall incidence rate of SCI at approximately 0.2% per year. Male sex, the coexistence of OPLL, and conservative management are twice as likely to be associated with subsequent SCI. Surgery is therefore suggested for male patients with CSM who also have OPLL.


Assuntos
Ossificação do Ligamento Longitudinal Posterior/epidemiologia , Doenças da Medula Espinal/epidemiologia , Espondilose/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Vértebras Cervicais/patologia , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Programas Nacionais de Saúde/estatística & dados numéricos , Ossificação do Ligamento Longitudinal Posterior/cirurgia , Modelos de Riscos Proporcionais , Risco , Doenças da Medula Espinal/cirurgia , Espondilose/cirurgia , Taiwan/epidemiologia
14.
Tohoku J Exp Med ; 238(1): 75-83, 2016 01.
Artigo em Inglês | MEDLINE | ID: mdl-26725845

RESUMO

Atrial fibrillation (AF) is currently recognized as one of the most common cardiac arrhythmias worldwide, with the increasing prevalence that has been estimated to be as high as 9% among the elderly. Health-related quality of life (HRQoL) has become an important patient-centered health outcome measurement, but the impacts created by AF and other arrhythmias with similar symptoms, such as frequent atrial and ventricular premature contractions (APCs and VPCs, defined as ≥ 3 beats/5 minutes), have not been extensively evaluated. The Yilan Study is a population-based community health survey, which in part aims to evaluate the prevalence and impacts of these arrhythmias on the HRQoL in a community dwelling elderly population. A total of 1,732 citizens from the Yilan, Taiwan, aged 65 years or older (45.8% male) were enrolled and visited at their homes, where HRQoL was measured utilizing the Short Form-12 Health Survey. Each participant's heart rhythm was recorded with an electrocardiographic monitor for 5 minutes. The results disclosed that the prevalence of AF of this aged population was 5.8%, similar to the mean global prevalence. Besides, the prevalence of frequent APCs and frequent VPCs in these elderly people were 7.1% and 5.5%, respectively. After multiple regression analysis, elderly people with AF had lower scores in the physical component of HRQoL, while those elderly people with frequent VPCs had lower scores in the mental component. Ultimately, these findings can provide additional useful and population-specific information about AF, and assist medical professionals in designing more effective strategies for cardiac arrhythmia treatments.


Assuntos
Fibrilação Atrial/complicações , Complexos Cardíacos Prematuros/complicações , Qualidade de Vida , Idoso , Fibrilação Atrial/epidemiologia , Demografia , Feminino , Humanos , Masculino , Prevalência , Análise de Regressão , Taiwan/epidemiologia
15.
J Org Chem ; 80(14): 7019-32, 2015 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-26151079

RESUMO

Clopidogrel is a prodrug anticoagulant with active metabolites that irreversibly inhibit the platelet surface GPCR P2Y12 and thus inhibit platelet activation. However, gaining an understanding of patient response has been limited due to imprecise understanding of metabolite activity and stereochemistry, and a lack of acceptable analytes for quantifying in vivo metabolite formation. Methods for the production of all bioactive metabolites of clopidogrel, their stereochemical assignment, and the development of stable analytes via three conceptually orthogonal routes are disclosed.


Assuntos
Microssomos Hepáticos/metabolismo , Piperidinas/síntese química , Inibidores da Agregação Plaquetária/síntese química , Inibidores da Agregação Plaquetária/metabolismo , Pró-Fármacos/síntese química , Ticlopidina/análogos & derivados , Fenômenos Biológicos , Clopidogrel , Humanos , Microssomos Hepáticos/efeitos dos fármacos , Piperidinas/química , Inibidores da Agregação Plaquetária/química , Pró-Fármacos/química , Estereoisomerismo , Ticlopidina/síntese química , Ticlopidina/química , Ticlopidina/metabolismo
16.
World J Surg ; 39(9): 2289-99, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26013205

RESUMO

BACKGROUND: The expression of RhoA, a member of the ras homologue family, is reported to be involved in tumorigenesis in some cancers; however, its prognostic value in gastric cancer is controversial. METHODS: Between April 1988 and January 2005, a total of 206 gastric cancer patients receiving curative surgery were enrolled in this study. Immunohistochemical staining of the RhoA protein was performed, and the clinicopathological characteristics and initial recurrence patterns were compared between low RhoA expression (n = 55) and high RhoA expression (n = 151) gastric cancer patients. RESULTS: For intestinal-type (n = 134) gastric cancer, there is no significant difference between the clinicopathological characteristics and RhoA expression. However, for diffuse-type (n = 82) gastric cancer, high RhoA expression was associated with more advanced pathological N category compared to low RhoA expression. A multivariate analysis revealed that age, pathological T and N categories, and RhoA expression were independent prognostic factors for overall survival after curative surgery. For all patients, the five-year overall survival rates and disease-free survival rates were higher in patients with low RhoA expression compared to those with high RhoA expression, which was observed in diffuse-type gastric cancer, not in intestinal-type gastric cancer. With regard to the initial recurrence pattern, patients with high RhoA expression had more distant metastasis compared to those with low RhoA expression, especially more liver metastasis. CONCLUSIONS: RhoA expression is an independent prognostic factor for gastric cancer, especially for diffuse-type. We should be aware of liver metastasis during the follow-up of gastric cancer with high RhoA expression.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias Gástricas/cirurgia , Proteína rhoA de Ligação ao GTP/metabolismo , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Gastrectomia , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Proteínas de Neoplasias/metabolismo , Recidiva Local de Neoplasia/metabolismo , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Fatores de Risco , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patologia
17.
Scand J Clin Lab Invest ; 75(1): 73-84, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25465804

RESUMO

BACKGROUND: Hepatocellular carcinogenesis is associated with the progression of cirrhosis, and the latter further aggravates tumor development and prognosis. The aim of the study was to investigate the prognostic values of 12 cirrhosis-relative noninvasive models in hepatocellular carcinoma (HCC). METHODS: We retrospectively analyzed 363 HCC patients who either underwent partial hepatectomy (PH) or received transcatheter arterial chemoembolization (TCAE). Preoperative data were collected to calculate these indices using the original formulas. Diagnostic accuracy of these models in detection of cirrhosis was evaluated by area under receiver operating characteristic curve (AUC) analysis. Multivariate analyses were performed to assess the independent prognostic significance of the 12 indicators. RESULTS: Aspartate aminotransferase-platelet ratio index (APRI) and Goteborg University Cirrhosis Index (GUCI) were found to be significant in discriminating cirrhotic patients from non-cirrhotic individuals. When the indices were expressed as continuous variables, multivariate analyses indicated that APRI and GUCI were independent indices to predict overall survival in patients underwent PH, with a hazard ratio (HR) value 1.04 (p = 0.005) and 1.07 (p = 0.001), respectively. In the cohort of TACE, APRI and GUCI were independently associated with survival as well. CONCLUSION: Of the 12 indices, APRI and GUCI were relatively accurate predictors of cirrhosis status as well as outcome of HCC. As only a limited study population was enrolled in the current study, larger cohorts are needed to validate our results.


Assuntos
Carcinoma Hepatocelular/patologia , Cirrose Hepática/patologia , Neoplasias Hepáticas/patologia , Adulto , Idoso , Área Sob a Curva , Carcinoma Hepatocelular/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Cirrose Hepática/mortalidade , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Modelos de Riscos Proporcionais , Curva ROC , Estudos Retrospectivos
18.
Carcinogenesis ; 35(1): 208-17, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23975832

RESUMO

Gastric carcinoma is one of the most common malignancies and the second most lethal cancer worldwide. The mechanisms underlying aggressiveness of gastric cancer still remain obscure. c-Myc promoter binding protein 1 (MBP-1) is a negative regulator of c-myc expression and ubiquitously expressed in normal human tissues. It is produced by alternative translation initiation of α-enolase gene. Both MBP-1 and α-enolase are involved in the control of tumorigenesis including gastric cancer. MicroRNAs (miRNAs) are involved in tumorigenesis and could have diagnostic, prognostic and therapeutic potential. In this study, whether miRNAs modulate tumorigenesis of gastric cancer cells through targeting MBP-1 was evaluated. We found that miR-363 targets 3'-untranslated region of human MBP-1/α-enolase messenger RNA. The exogenous miR-363 promotes growth, viability, progression, epithelial-mesenchymal transition and tumorsphere formation of SC-M1 gastric cancer cells through downregulation of MBP-1, whereas the knockdown of endogenous miR-363 suppresses tumorigenesis and progression of SC-M1 cells via upregulation of MBP-1. The miR-363/MBP-1 axis is also involved in the control of carcinogenesis in KATO III and SNU-16 gastric cancer cells. Furthermore, miR-363 induces the xenografted tumor growth and lung metastasis of SC-M1 cells through MBP-1 in vivo. Taken together, these results suggest that miR-363 plays an important role in the increment of gastric carcinogenesis via targeting MBP-1.


Assuntos
Proteínas de Ligação a DNA/genética , MicroRNAs/genética , Neoplasias Gástricas/genética , Regiões 3' não Traduzidas , Animais , Linhagem Celular Tumoral , Proteínas de Ligação a DNA/metabolismo , Regulação para Baixo , Transição Epitelial-Mesenquimal/genética , Feminino , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/secundário , Camundongos Nus , Camundongos SCID , Fosfopiruvato Hidratase/genética , Neoplasias Gástricas/patologia , Ensaios Antitumorais Modelo de Xenoenxerto
19.
J Am Chem Soc ; 136(43): 15403-13, 2014 Oct 29.
Artigo em Inglês | MEDLINE | ID: mdl-25328977

RESUMO

Antibiotic-resistant bacteria present an ongoing challenge to both chemists and biologists as they seek novel compounds and modes of action to out-maneuver continually evolving resistance pathways, especially against Gram-negative strains. The dimeric pyrrole-imidazole alkaloids represent a unique marine natural product class with diverse primary biological activity and chemical architecture. This full account traces the strategy used to develop a second-generation route to key spirocycle 9, culminating in a practical synthesis of the axinellamines and enabling their discovery as broad-spectrum antibacterial agents, with promising activity against both Gram-positive and Gram-negative bacteria. While their detailed mode of antibacterial action remains unclear, the axinellamines appear to cause secondary membrane destabilization and impart an aberrant cellular morphology consistent with the inhibition of normal septum formation. This study serves as a rare example of a natural product initially reported to be devoid of biological activity surfacing as an active antibacterial agent with an intriguing mode of action.


Assuntos
Antibacterianos/síntese química , Antibacterianos/farmacologia , Imidazóis/síntese química , Imidazóis/farmacologia , Pirróis/síntese química , Pirróis/farmacologia , Antibacterianos/química , Bactérias/efeitos dos fármacos , Técnicas de Química Sintética , Ciclização , Guanidina/química , Imidazóis/química , Testes de Sensibilidade Microbiana , Óxidos/química , Pirróis/química , Compostos de Espiro/química
20.
World J Surg ; 38(2): 431-8, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24132827

RESUMO

BACKGROUND: Bariatric surgery has been adapted to the management of morbid obesity, leading to not only loss of body weight but also improvement of type 2 diabetes mellitus (DM). The goal of our study was to evaluate the effect of gastrectomy in gastric cancer patients with type 2 DM. METHODS: From 1989 to 2011, a total of 69 gastric cancer patients receiving curative surgery were enrolled in this study. They were diagnosed with type 2 DM preoperatively and all are alive without tumor recurrence. The clinical characteristics were compared between groups with improved or unimproved DM, and groups were also analyzed based on the extent of gastrectomy and different reconstruction methods. RESULTS: Of the 69 patients, 58 received subtotal gastrectomy and 11 received total gastrectomy. The frequency of DM improvement was significantly higher after total gastrectomy than subtotal gastrectomy (81.8 vs. 36.2 %; p = 0.007). Patients with DM duration of less than 5 years tended to experience DM improvement after surgery more frequently than patients with DM duration of more than 5 years (p = 0.028). Roux-en-Y esophagojejunostomy (R-Ye) led to a higher rate of DM improvement than did R-Y gastrojejunostomy (R-Yg), especially in patients with DM duration more than 5 years. Among patients receiving duodenal bypass after gastrectomy, R-Ye was associated with a higher frequency of DM improvement than R-Yg and B-II. CONCLUSIONS: The extent of gastrectomy rather than the reconstruction method played an important role in DM improvement after curative surgery for gastric cancer.


Assuntos
Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/cirurgia , Gastrectomia , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Cirurgia Bariátrica , Comorbidade , Análise Fatorial , Feminino , Gastrectomia/métodos , Humanos , Masculino , Análise Multivariada , Estudos Retrospectivos , Resultado do Tratamento
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