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BACKGROUND: The healthcare water environment is a potential reservoir of carbapenem-resistant organisms (CROs). AIM: To report the role of the water environment as a reservoir and the infection control measures applied to suppress a prolonged outbreak of Klebsiella pneumoniae carbapenemase-producing Serratia marcescens (KPC-SM) in two intensive care units (ICUs). METHODS: The outbreak occurred in the ICUs of a tertiary hospital from October 2020 to July 2021. Comprehensive patient contact tracing and environmental assessments were conducted, and a case-control study was performed to identify factors associated with the acquisition of KPC-SM. Associations among isolates were assessed via pulsed-field gel electrophoresis (PFGE). Antibiotic usage was analysed. FINDINGS: The outbreak consisted of two waves involving a total of 30 patients with KPC-SM. Multiple environmental cultures identified KPC-SM in a sink, a dirty utility room, and a communal bathroom shared by the ICUs, together with the waste bucket of a continuous renal replacement therapy (CRRT) system. The genetic similarity of the KPC-SM isolates from patients and the environment was confirmed by PFGE. A retrospective review of 30 cases identified that the use of CRRT and antibiotics was associated with acquisition of KPC-SM (P < 0.05). There was a continuous increase in the use of carbapenems; notably, the use of colistin has increased since 2019. CONCLUSION: Our study demonstrates that CRRT systems, along with other hospital water environments, are significant potential sources of resistant micro-organisms, underscoring the necessity of enhancing infection control practices in these areas.
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Previously, we have reported that ginsenoside Rg3 has typical activities for neuroprotection and Aß42 clearance by modulating microglia. In this study, we determined the pivotal role of ginsenoside Rg3 in microglia and neuronal cells. In human microglia, Rg3 and its stereoisomers significantly restored inflammatory M1 to normal M0 state and promoted M2 activation by up-regulating acute cytokines such as interleukin-10 and Arginase 1. Moreover, scavenger receptor type A (SRA) was significantly elevated in the presence of ginsenoside Rg3 and 20(S)-Rg3. This indicated that ginsenoside Rg3 could play a crucial role in Aß uptake and clearance under activated M2 state. We also observed that soluble amyloid precursor protein-alpha (sAPPα) and ADAM10 levels were increased in APP swe-transfected Nuro-2a neuronal cells, whereas sAPPß was not processed, suggesting that ginsenoside Rg3 was involved in non-amyloidogenic processing. In immunocytochemistry, SRA and a disintegrin and metalloproteinase 10 (desintegrin and metalloproteinase-containing protein 10, ADAM10) were coincidently upregulated in the presence of ginsenoside Rg3 and its stereoisomers compared to those in normal control. Taken together, these results suggested that ginsenoside Rg3 could boost acute activation of microglia, promote Aß uptake, and elevate the sAPPα processing under activated M2 state. Although in vivo studies need to be performed, it is certain that ginsenoside Rg3 is highly involved in ameliorating the pathogenesis of neurodegeneration and can be a promising candidate for treating Alzheimer's disease as a new therapeutic intervention.
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Doença de Alzheimer , Ginsenosídeos , Doença de Alzheimer/tratamento farmacológico , Citocinas , Ginsenosídeos/farmacologia , Humanos , MicrogliaRESUMO
BACKGROUND: Disproportionately enlarged subarachnoid space hydrocephalus is a specific radiologic marker for idiopathic normal pressure hydrocephalus. However, controversy exists regarding the prognostic utility of disproportionately enlarged subarachnoid space hydrocephalus. PURPOSE: Our aim was to evaluate the prevalence of disproportionately enlarged subarachnoid space hydrocephalus in idiopathic normal pressure hydrocephalus and its predictive utility regarding prognosis in patients treated with ventriculoperitoneal shunt surgery. DATA SOURCES: We used MEDLINE and EMBASE databases. STUDY SELECTION: We searched for studies that reported the prevalence or the diagnostic performance of disproportionately enlarged subarachnoid space hydrocephalus in predicting treatment response. DATA ANALYSIS: The pooled prevalence of disproportionately enlarged subarachnoid space hydrocephalus was obtained. Pooled sensitivity, specificity, and area under the curve of disproportionately enlarged subarachnoid space hydrocephalus to predict treatment response were obtained. Subgroup and sensitivity analyses were performed to explain heterogeneity among the studies. DATA SYNTHESIS: Ten articles with 812 patients were included. The pooled prevalence of disproportionately enlarged subarachnoid space hydrocephalus in idiopathic normal pressure hydrocephalus was 44% (95% CI, 34%-54%). The pooled prevalence of disproportionately enlarged subarachnoid space hydrocephalus was higher in the studies using the second edition of the Japanese Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus compared with the studies using the international guidelines without statistical significance (52% versus 43%, P = .38). The pooled sensitivity and specificity of disproportionately enlarged subarachnoid space hydrocephalus for prediction of treatment response were 59% (95% CI, 38%-77%) and 66% (95% CI, 57%-74%), respectively, with an area under the curve of 0.67 (95% CI, 0.63-0.71). LIMITATIONS: The lack of an established method for assessing disproportionately enlarged subarachnoid space hydrocephalus using brain MR imaging served as an important cause of the heterogeneity. CONCLUSIONS: Our meta-analysis demonstrated a relatively low prevalence of disproportionately enlarged subarachnoid space hydrocephalus in idiopathic normal pressure hydrocephalus and a poor diagnostic performance for treatment response.
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Hidrocefalia de Pressão Normal , Derivação Ventriculoperitoneal , Humanos , Hidrocefalia de Pressão Normal/diagnóstico por imagem , Hidrocefalia de Pressão Normal/cirurgia , Imageamento por Ressonância Magnética , Prognóstico , Espaço Subaracnóideo/diagnóstico por imagemRESUMO
We investigated the relationship between the prognostic importance of anatomic tumour burden and subtypes of breast cancer using data from the Korean Breast Cancer Registry Database. In HR+/HER2+ and HR-/HER2-tumours, an increase in T stage profoundly increased the hazard of death, while the presence of lymph node metastasis was more important in HR+/HER2+ and HR-/HER2+ tumours among 131,178 patients with stage I-III breast cancer. The patterns of increasing mortality risk and tumour growth (per centimetre) and metastatic nodes (per node) were examined in 67,038 patients with a tumour diameter ≤ 7 cm and < 8 metastatic nodes. HR+/HER2- and HR-/HER2- tumours showed a persistent increase in mortality risk with an increase in tumour diameter, while the effect was modest in HER2+ tumours. Conversely, an increased number of metastatic nodes was accompanied by a persistently increased risk in HR-/HER2+ tumours, while the effect was minimal for HR-/HER2- tumours with > 3 or 4 nodes. The interactions between the prognostic significance of anatomic tumour burden and subtypes were significant. The prognostic relevance of the anatomic tumour burden was non-linear and highly dependent on the subtypes of breast cancer.
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Neoplasias da Mama/classificação , Neoplasias da Mama/patologia , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Carga Tumoral , Adolescente , Adulto , Idoso , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/metabolismo , Neoplasias da Mama/terapia , Terapia Combinada , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Prognóstico , Taxa de Sobrevida , Adulto JovemRESUMO
BACKGROUND: Intense noxious input from the periphery may result in central sensitization and hyperexcitability, thus accentuating subsequent postoperative pain. Parturients who undergo emergency cesarean section (C-sec) after experiencing labor pain often develop labor pain-induced sensitization. OBJECTIVE: This retrospective study evaluated whether parturients without epidural labor analgesia (ELA) who underwent emergency Csec, experienced more severe postoperative pain and required more rescue analgesics during the postoperative period. METHODS: The institution's medical database was searched for parturients who underwent emergency Csec under spinal anesthesia for any reason between January 2013 and December 2016. Those who underwent elective Csec under spinal anesthesia were included as the reference arm. Parturients were divided into three groups: ELA, no-ELA and elective. Characteristics of patients and perioperative outcomes were evaluated. As primary outcomes, numerical rating scale (NRS) for postoperative pain (0-10) was recorded up to 96â¯h postoperatively, and use of rescue analgesics was evaluated at 6, 24, and 48â¯h postoperatively. RESULTS: In the ELA, no-ELA, and elective groups, 61, 73, and 88 parturients, respectively, were ultimately enrolled. The NRS for pain were similar among the three groups, except at 6â¯h postoperatively. Parturients in the no-ELA group demonstrated significantly higher NRS at 6â¯h postoperatively than those in the ELA group (Pâ¯= 0.01).More patients in the no-ELA group required rescue analgesics than in the ELA (Pâ¯= 0.001) and elective groups (Pâ¯< 0.001) at 6-24â¯h postoperatively. Moreover, the proportion of patients requiring rescue analgesics ≥2 times was also significantly higher in the no-ELA group (vs. the ELA group, Pâ¯= 0.004; vs. the elective group, Pâ¯< 0.001). CONCLUSION: Parturients undergoing emergency Csec without ELA management during labor experienced greater postoperative pain and a greater use of rescue analgesics during the postoperative period. The findings suggest that administration of ELA before emergency Csec may act as pre-emptive analgesia against postoperative pain.
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Analgesia Epidural , Anestesia Obstétrica , Cesárea , Dor Pós-Operatória/tratamento farmacológico , Adulto , Analgésicos , Anestesia Epidural , Raquianestesia , Anestésicos Locais/administração & dosagem , Feminino , Humanos , Gravidez , Estudos RetrospectivosRESUMO
Background: The possibility of an association between early menopause and the risk of non-alcoholic fatty liver disease (NAFLD) is as yet unclear.Methods: The subjects consisted of 4354 postmenopausal women who participated in the 2010-2012 Korea National Health and Nutrition Examination Survey. Early, normal, and late menopause were defined as age at menopause <45 years, 45-54 years, and ≥55 years, respectively. NAFLD was defined by a hepatic steatosis index of >36.Results: When compared with normal menopausal women, early or late menopausal women had no significant differences in the odds ratios (ORs) of NAFLD: OR = 1.05, 95% confidence interval (CI), 0.83-1.32 and OR = 1.02, 95% CI, 0.75-1.39, respectively. These results remained similar after adjustment for known risk factors for NAFLD, reproductive factors, and comorbidities. The OR for NAFLD per 1-year increase in age at menopause was 1.01 (95% CI, 0.99-1.03; p = 0.329). The prevalence of advanced fibrosis was 2.1% (95% CI, 0.7-6.4%), 2.2% (95% CI, 1.3-3.8%), and 3.9% (95% CI, 1.2-12.2%) in early, normal, and late menopausal women, respectively.Conclusions: This study provides no evidence for an association of early menopause with NAFLD risk. However, NAFLD-related advanced fibrosis is highly prevalent in postmenopausal women.
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Menopausa Precoce , Hepatopatia Gordurosa não Alcoólica/etiologia , Pós-Menopausa , Adulto , Idoso , Estudos de Casos e Controles , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Prevalência , República da Coreia/epidemiologiaRESUMO
Effects of anti-osteoporosis medications such as anti-resorptive and anabolic agents on healing of osteoporotic spinal fracture were retrospectively investigated. The use of anabolic agent significantly enhanced fracture healing, reduced progressive collapse, and presented good pain relief. These findings suggest that proper selection of medication could improve initial management of acute osteoporotic spinal fractures (OSFs). INTRODUCTION: Although anti-osteoporosis medications have beneficial effects on prevention of osteoporotic spinal fractures (OSFs), few studies have compared effects of medications on fracture healing following OSFs. Therefore, the purpose of this study was to elucidate the effects of different anti-osteoporosis medications on radiological and clinical outcomes after acute OSFs. METHODS: A total of 132 patients diagnosed with acute OSFs were enrolled and allocated into three groups [group I (n = 39, no anti-osteoporosis medication), group II (n = 66, bisphosphonate), and group III (n = 27, parathyroid hormone (PTH)]. Radiological parameters including magnetic resonance (MR) classification, occurrence of intravertebral cleft (IVC), and clinical outcomes such as numerical rating scale (NRS) and Oswestry disability index were assessed. Risk analyses for IVC and progressive collapse were done along the related factors and medication type. RESULTS: IVC sign was observed in 30 patients. The rate of IVC sign was lower in group III (7.4%) than that in group I (20.5%) or group II (30.3%), although the difference was not statistically significant. Moreover, the degree of NRS improvement was better in group III than that in group I or group II (5.7 vs. 3.1 vs. 3.5, p < 0.001). On multiple regression analysis, mid-portion type fracture in MR classification was a significant risk factor for progressive OSFs. The use of PTH showed significant lower incidences of occurrence of IVC (odds ratio (OR) = 0.160) and increase in height loss (OR = 0.325). CONCLUSIONS: Different anti-osteoporosis medications presented different clinical and radiological results after acute OSFs. The use of anabolic agent significantly enhanced fracture healing, reduced progressive collapse, and presented better clinical outcomes. Proper selection of medication might improve initial management of acute OSFs.
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Conservadores da Densidade Óssea/administração & dosagem , Fraturas por Osteoporose/tratamento farmacológico , Fraturas da Coluna Vertebral/tratamento farmacológico , Doença Aguda , Idoso , Idoso de 80 Anos ou mais , Anabolizantes/administração & dosagem , Feminino , Consolidação da Fratura/efeitos dos fármacos , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Osteoporose/tratamento farmacológico , Fraturas por Osteoporose/diagnóstico por imagem , Fraturas por Osteoporose/patologia , Radiografia , Estudos Retrospectivos , Fatores de Risco , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/patologiaRESUMO
OBJECTIVES: The aim of this study was to compare clearance rates and related characteristics of patients carrying KPC-producing carbapenemase-producing Enterobacteriaceae (CPE) with those of patients carrying NDM-1-producing CPE. METHODS: From November 2010 to October 2016, consecutive patients whose clinical or surveillance cultures yielded CPE were prospectively identified and followed in a 2700-bed tertiary referral hospital. CPE control protocols included strict single-room isolation, contact precautions and weekly surveillance cultures. CPE clearance was defined as three or more consecutive CPE-negative cultures without relapse. We compared patients carrying NDM-1 CPE and KPC and those with and without clearance. The time to CPE clearance or discharge was assessed using the Kaplan-Meier method and NDM-1 CPE and KPC CPE groups were compared. RESULTS: A total of 147 patients carrying CPE, 106 with NDM-1 and 41 with KPC, were included in the study. At the time of hospital discharge, 12 of the 106 patients carrying NDM-1 CPE were clear of CPE, whereas none of the KPC CPE patients were (NDM-1, 11.3% (12/106) versus KPC, 0% (0/41), p 0.02). There was no significant association between CPE clearance and factors such as an immunocompromised condition, antibiotic usage, or species of colonizing organism. Among 40 patients who were readmitted, CPE non-clearance was significantly higher in patients carrying KPC CPE (NDM-1, 36.7% (11/30) versus KPC, 80.0% (8/10), p 0.03). CONCLUSIONS: Compared with NDM-1 CPE patients, patients carrying KPC CPE had a significantly lower probability of clearance during hospitalization. Furthermore, KPC CPE carriage persisted for a substantial period of time following patient discharge.
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Antibacterianos/uso terapêutico , Enterobacteriáceas Resistentes a Carbapenêmicos/efeitos dos fármacos , Infecções por Enterobacteriaceae/tratamento farmacológico , beta-Lactamases/metabolismo , Idoso , Proteínas de Bactérias/metabolismo , Enterobacteriáceas Resistentes a Carbapenêmicos/metabolismo , Infecções por Enterobacteriaceae/metabolismo , Feminino , Humanos , Controle de Infecções/métodos , Masculino , Testes de Sensibilidade Microbiana/métodos , Pessoa de Meia-Idade , Estudos Prospectivos , Centros de Atenção TerciáriaRESUMO
BACKGROUND: While device-based acne treatments are widely applied for patients not tolerating conventional medications, related controlled studies have been still limited. Recently, non-ablative 1450-nm diode laser (DL) and fractional microneedling radiofrequency (FMR) have been effectively used for acne, in addition to well-recognized dermal remodelling effects. OBJECTIVE: To compare the clinical course of acne treatment between DL and FMR. METHODS: Twenty-five Korean patients with mild-to-moderate facial acne completed treatments with DL and FMR through a 20-week, randomized split-face study. One randomly assigned half side of each patient's face received DL and the other side by FMR. Treatments were scheduled to receive three consecutive sessions at 4-week intervals. Objective assessments including revised Leeds grades, lesion counts, sebum output measurements, and patients' subjective satisfaction were investigated. RESULTS: Both DL and FMR demonstrated steady improvement of acne and seborrhoea during treatment sessions. While results between two devices were similar during treatment sessions, FMR was superior to DL in the 12-week follow-up. Patients' subjective assessments for seborrhoea improvement were similar between two devices, while those for acne, skin texture, and acne scars were more satisfactory for FMR. For safety profile, no significant difference was observed between two regimens, while mild postinflammatory hyperpigmentation was observed only in DL side. CONCLUSION: Both DL and FMR demonstrated efficacies for acne and seborrhoea, with reasonable safety profile. FMR was more effective than DL for the long-term maintenance, and subjective assessments for texture and scar improvements. Therefore, a few sessions of these devices would be a viable option for acne treatments.
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Acne Vulgar/terapia , Dermatite Seborreica/terapia , Terapia a Laser/instrumentação , Agulhas , Acne Vulgar/patologia , Acne Vulgar/radioterapia , Adolescente , Adulto , Dermatite Seborreica/patologia , Dermatite Seborreica/radioterapia , Feminino , Humanos , Terapia a Laser/efeitos adversos , Masculino , Agulhas/efeitos adversos , Satisfação do Paciente , Estudos Prospectivos , República da Coreia , Sebo/metabolismo , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto JovemRESUMO
PURPOSE: To evaluate the risk of primary open-angle glaucoma (POAG) development in type 2 diabetes mellitus (T2DM) patients. METHODS: In this 11-year longitudinal study based on the Korean National Health Insurance research database, the data collected comprised 1,025,340 (2.2%) participants who were randomly selected from 46,605,433 Korean residents in 2002. The database was analyzed to identify participants with an initial diagnosis of T2DM in 2003-2004. The control group was composed of participants without T2DM who were propensity-score-matched, five controls per T2DM patient, according to age, gender, household income, residential area and underlying diseases, including hypertension, dyslipidaemia, coronary heart disease, cerebrovascular disease and thyroid disease. Cox proportional-hazards regression was used to calculate the overall hazard ratios (HRs) in participants with and without T2DM for development of POAG before and after adjusting for confounding factors. RESULTS: There were 12,657 participants with T2DM and 63,285 propensity-score-matched controls without T2DM. POAG developed in 413 (3.3%) and 1188 (1.9%) participants in the T2DM and control groups, respectively. T2DM was associated with an increased risk of POAG development [HR: 1.80; 95% confidence interval (CI): 1.58-2.04] after adjusting for age, gender, household income and other potential confounders. CONCLUSION: T2DM was significantly associated with the development of POAG after adjusting for potential confounders in the Korean population.
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Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Glaucoma de Ângulo Aberto/epidemiologia , Glaucoma de Ângulo Aberto/etiologia , Adulto , Idoso , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Pontuação de Propensão , República da Coreia/epidemiologiaRESUMO
SETTING: Tertiary referral centre, Samsung Medical Center, South Korea. OBJECTIVE: To evaluate the pharmacokinetic parameters and toxicities of once-daily amikacin (AMK) dosing for lung disease due to Mycobacterium abscessus. DESIGN: A retrospective review of 48 patients with M. abscessus lung disease who received once-daily AMK for 4 weeks between January 2012 and June 2015. RESULTS: With a starting dose of 15 mg/kg/day and adjustment of AMK dose according to the peak serum level (Cmax), the Cmax target of 55-65 µg/ml was achieved in 31.3% (15/48) of patients in the first week, 68.8% (33/48) in week 2, 91.7% (44/48) in week 3 and 95.8% (46/48) in week 4. Transient nephrotoxicity developed in 6.3% (3/48) of patients and ototoxicity in 25.0% (6/24), which was determined by audiogram as hearing loss, asymptomatic in five patients and tinnitus in one. Multivariate analysis revealed that the highest drug concentration 12 h after administration was significantly associated with the development of toxicities (adjusted odds ratio 1.862, P = 0.047). CONCLUSION: Our results suggest that once-daily AMK for 4 weeks with a target Cmax of 55-65 µg/ml can be used in patients with M. abscessus lung disease, with careful monitoring of toxicity.
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Amicacina/administração & dosagem , Antibacterianos/administração & dosagem , Infecções por Mycobacterium não Tuberculosas/tratamento farmacológico , Mycobacterium abscessus/isolamento & purificação , Idoso , Amicacina/efeitos adversos , Amicacina/farmacocinética , Antibacterianos/efeitos adversos , Antibacterianos/farmacocinética , Esquema de Medicação , Monitoramento de Medicamentos/métodos , Feminino , Perda Auditiva/induzido quimicamente , Perda Auditiva/epidemiologia , Humanos , Nefropatias/induzido quimicamente , Nefropatias/epidemiologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Infecções por Mycobacterium não Tuberculosas/microbiologia , República da Coreia , Estudos Retrospectivos , Zumbido/induzido quimicamente , Zumbido/epidemiologiaRESUMO
OBJECTIVE: To evaluate the proportion and clinical characteristics of patients with non-tuberculous mycobacteria (NTM) lung disease diagnosed based on positive culture results in liquid medium only. METHODS: We reviewed the medical records of 978 patients diagnosed with NTM lung disease. All clinical samples were cultured in both solid and liquid media. RESULTS: Of the 978 patients, 111 (11.3%) were culture-positive in liquid medium only (liquid culture group), and 867 (88.7%) (solid culture group) on solid medium, regardless of the culture results in liquid medium. At the time of diagnosis, the liquid culture group was less likely than the solid culture group to have haemoptysis (11.7% vs. 20.0%, P = 0.04), positive sputum smear for acid-fast bacilli (14.4% vs. 50.2%, P < 0.001) or the fibrocavitary form of NTM lung disease (3.6% vs. 14.6%, P = 0.001). During the median follow-up period of 28.9 months (interquartile range 19.1-41.6), the proportion of patients requiring antibiotic treatment was lower in the liquid culture group than in the solid culture group (44.1% vs. 61.6%, P < 0.001). CONCLUSIONS: Liquid media culture is helpful in the diagnosis of patients with less severe forms of NTM lung disease.
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Pneumopatias/diagnóstico , Infecções por Mycobacterium não Tuberculosas/diagnóstico , Micobactérias não Tuberculosas/isolamento & purificação , Escarro/microbiologia , Idoso , Meios de Cultura , Feminino , Humanos , Pneumopatias/microbiologia , Masculino , Pessoa de Meia-Idade , Infecções por Mycobacterium não Tuberculosas/microbiologia , Índice de Gravidade de DoençaRESUMO
SETTING: Citation analyses aid in assessing quality, trends and future directions of research fields. OBJECTIVE: To identify the most influential articles on infections caused by non-tuberculous mycobacteria (NTM) in the last 20 years. DESIGN: We performed a cited reference search of the Web of Science database from 1995 to 2015. The 100 most cited articles on NTM infections were analysed. RESULTS: The top 100 articles were cited 114-1471 times, and were published from 1995 to 2013. Sixty-five were laboratory-based, basic science articles, with the major topics being pathophysiology (n = 20) and molecular methods for NTM identification (n = 15). Among the 35 non-laboratory studies, major topics were clinical management (n = 15) and epidemiology (n = 14). The top article was a clinical treatise on the management of NTM disease, published in 2007. Although there was a correlation between article rank and journal impact factor (P = 0.043, ρ = -0.202), the five articles from the journals with highest impact factors did not rank among the top 10 articles. CONCLUSION: A large proportion of influential articles on NTM infection are basic scientific studies, and the most influential articles are not always published in high-impact journals.
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Bibliometria , Infecções por Mycobacterium não Tuberculosas , Publicações Periódicas como Assunto/tendências , Humanos , Fator de Impacto de RevistasRESUMO
BACKGROUND: Little information is available regarding vitamin D-associated factors in patients with non-tuberculous mycobacteria (NTM) lung disease. OBJECTIVE: To determine the association between vitamin D-related factors and susceptibility to NTM lung disease. DESIGN: The relative gene expression levels of cathelicidin (CAMP), defensin (DEFB4), vitamin D receptor (VDR) and 1-hydroxylase (CYP27B1), as well as the serum levels of 25-hydroxyvitamin D (25[OH]D), cathelicidin (LL-37), defensin (hBD-2) and vitamin D-binding protein (DBP) from 82 patients with NTM lung disease and 28 control subjects were analysed. RESULTS: Gene expression of CAMP and DEFB4 was significantly higher, and gene expression of VDR and CYP27B1 was significantly lower, in NTM patients than controls. Serum LL-37 and hBD-2 levels were not significantly different between NTM patients and controls; however, the serum DBP level was higher in NTM patients than controls. The serum vitamin D status of patients did not correlate with serum LL-37, hBD-2, or DBP concentration or gene expression of CAMP, DEFB4, VDR or CYP27B1. CONCLUSION: A higher level of gene expression for antimicrobial peptide is more likely to be associated with NTM lung disease than serum vitamin D status.
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Infecções por Mycobacterium não Tuberculosas/sangue , Deficiência de Vitamina D/epidemiologia , Vitamina D/sangue , 25-Hidroxivitamina D3 1-alfa-Hidroxilase/genética , 25-Hidroxivitamina D3 1-alfa-Hidroxilase/metabolismo , Idoso , Peptídeos Catiônicos Antimicrobianos/sangue , Estudos de Casos e Controles , Catelicidinas/genética , Catelicidinas/metabolismo , Linhagem Celular , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infecções por Mycobacterium não Tuberculosas/complicações , Micobactérias não Tuberculosas/isolamento & purificação , Prevalência , Receptores de Calcitriol/genética , Receptores de Calcitriol/metabolismo , República da Coreia/epidemiologia , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/complicações , beta-Defensinas/genética , beta-Defensinas/metabolismoRESUMO
RNA is a key player in the process of gene expression. Whereas fluorescence in situ hybridization allows single mRNA imaging in fixed cells, the MS2-GFP labeling technique enables the observation of mRNA dynamics in living cells. Recently, two genetically engineered mouse models have been developed for the application of the MS2-GFP system in live animals. First, the Actb-MBS mouse was generated by knocking in 24 repeats of the MS2 stem-loop sequence in the 3' untranslated region of the ß-actin gene. Second, the MCP mouse was made to express the NLS-HA-MCP-GFP transgene in all cell types. By crossing Actb-MBS and MCP mice, a double homozygous mouse line, MCP×MBS, was established to visualize endogenous ß-actin mRNA labeled with multiple green fluorescent proteins. By imaging hippocampal neurons or brain slices from MCP×MBS mice, the dynamics of mRNA, such as transcription, transport, and localization, can be studied at single mRNA resolution. In this chapter, we explain the basics of MCP×MBS mice and describe methods for utilizing these animals.
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Encéfalo/citologia , Imagem Molecular/métodos , Neurônios/citologia , RNA Mensageiro/análise , Regiões 3' não Traduzidas , Actinas/genética , Animais , Encéfalo/metabolismo , Proteínas do Capsídeo/genética , Técnicas de Cultura de Células/métodos , Sobrevivência Celular , Células Cultivadas , Engenharia Genética , Proteínas de Fluorescência Verde/genética , Levivirus/genética , Camundongos , Microscopia Confocal/métodos , Microtomia/métodos , Neurônios/metabolismo , RNA Mensageiro/genética , Coloração e Rotulagem/métodos , Transcrição GênicaRESUMO
Exposure to particulate matter (PM), a major component of air pollution, contributes to increased morbidity and mortality worldwide. PM induces innate immune responses and contributes to allergic sensitization, although the mechanisms governing this process remain unclear. Lung mucosal uric acid has also been linked to allergic sensitization. The links among PM exposure, uric acid, and allergic sensitization remain unexplored. We therefore investigated the mechanisms behind PM-induced allergic sensitization in the context of lung mucosal uric acid. PM10 and house dust mite exposure selectively induced lung mucosal uric acid production and secretion in vivo, which did not occur with other challenges (lipopolysaccharide, virus, bacteria, or inflammatory/fibrotic stimuli). PM10-induced uric acid mediates allergic sensitization and augments antigen-specific T-cell proliferation, which is inhibited by uricase. We then demonstrate that human airway epithelial cells secrete uric acid basally and after stimulation through a previously unidentified mucosal secretion system. Our work discovers a previously unknown mechanism of air pollution-induced, uric acid-mediated, allergic sensitization that may be important in the pathogenesis of asthma.
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Antígenos de Dermatophagoides/imunologia , Hipersensibilidade/imunologia , Pulmão/fisiologia , Material Particulado/imunologia , Mucosa Respiratória/imunologia , Linfócitos T/imunologia , Ácido Úrico/metabolismo , Animais , Proliferação de Células , Células Cultivadas , Exposição Ambiental/efeitos adversos , Feminino , Humanos , Imunidade nas Mucosas , Imunização , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Pyroglyphidae , Mucosa Respiratória/patologia , Receptor 4 Toll-Like/genéticaRESUMO
In this report, we describe 37 MERS-CoV infection cases (1 primary, 25 secondary, 11 tertiary cases) in a single hospital in South Korea. The median incubation period was six days (95% CI: 47 days) and the duration between suspected symptom onset and laboratory confirmation was 6.5 days (95% CI: 49). While incubation period was two days longer, the duration from suspected symptom onset to confirmation was shorter in tertiary compared with secondary infections.
Assuntos
Infecções por Coronavirus/epidemiologia , Coronavirus/genética , Infecção Hospitalar/epidemiologia , Surtos de Doenças , Pessoal de Saúde/estatística & dados numéricos , Coronavírus da Síndrome Respiratória do Oriente Médio/isolamento & purificação , Adulto , Idoso , Busca de Comunicante , Coronavirus/isolamento & purificação , Infecções por Coronavirus/diagnóstico , Infecção Hospitalar/diagnóstico , Infecção Hospitalar/transmissão , Infecção Hospitalar/virologia , Feminino , Humanos , Incidência , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Coronavírus da Síndrome Respiratória do Oriente Médio/genética , Vigilância da População , Reação em Cadeia da Polimerase em Tempo Real , República da Coreia/epidemiologiaRESUMO
Treatments for breast cancer often include interventions related to psychosocial issues such as negative body image, loss of femininity, and low self-esteem. We identified the psychological effects of a cosmetics education programme in patients with breast cancer. Cosmetic programme is a specific care designed to help patients handle appearance-related side effects. Thirty-one women with breast cancer at a university hospital in South Korea who received a cosmetics education programme were compared with 29 subjects in a control group who received the treatment as usual. Psychological factors including distress, self-esteem, and sexual functioning were assessed three times (before and after the programme, and at the 1-month follow-up). After the programme, patients in the treatment group were significantly less likely than those in the control group to rely on distress (P = 0.038) and avoidance coping (P < 0.001) but not on self-esteem. The mean scores in the treatment group for sexual functioning were higher than those in the control group after the treatment. Our results suggest the potential usefulness of a brief cosmetics education programme for reducing distress and reliance on negative coping strategies. Implementing a cosmetics programme for patients with breast cancer may encourage patients to control negative psychological factors.
Assuntos
Neoplasias da Mama/psicologia , Cosméticos/uso terapêutico , Mastectomia/psicologia , Educação de Pacientes como Assunto/métodos , Adaptação Psicológica , Adulto , Antineoplásicos/uso terapêutico , Ansiedade/etiologia , Ansiedade/terapia , Imagem Corporal/psicologia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Estudos Prospectivos , República da Coreia , Autoeficácia , Estresse Psicológico/etiologia , Estresse Psicológico/terapiaRESUMO
PURPOSE: To determine the morphologic features of the optic disc and the location of visual field (VF) defect in relation to posterior staphyloma in normal tension glaucoma (NTG) eyes with myopia. METHODS: One hundred and thirty-four NTG patients with myopia were enrolled. B-scan ultrasonography was performed in enrolled patients. Disc tilt ratio, disc torsion, and area of peripapillary atrophy were measured from disc photographs. Patients were classified according to the presence of posterior staphyloma and its location: staphyloma involving the optic disc, staphyloma involving either the supero-temporal side of the optic disc or the infero-temporal side of the optic disc. The relationship between the location of the posterior staphyloma and that of the VF defect was analyzed. RESULTS: Among 134 eyes, 74 eyes (55.2%) had posterior staphyloma on B-scan ultrasonography. Mean torsion degree was significantly greater in eyes with staphyloma involving the temporal side of the optic disc (19.78±18.00°) compared with eyes with staphyloma involving the optic disc (4.65±4.92°, P=0.001). The frequency of the location of VF damage differed significantly between eyes with staphyloma involving the supero-temporal side and those involving the infero-temporal side of the optic disc (P=0.008), which was not significant in eyes with staphyloma involving the optic disc (P=0.813). CONCLUSIONS: Optic disc torsion was a prominent finding in myopic NTG eyes when posterior staphyloma was located temporal to the optic disc. The location of posterior staphyloma was related to the direction of disc torsion and the location of VF defect.
Assuntos
Glaucoma de Baixa Tensão/diagnóstico , Miopia/diagnóstico , Disco Óptico/patologia , Doenças do Nervo Óptico/diagnóstico , Anormalidade Torcional/diagnóstico , Transtornos da Visão/diagnóstico , Campos Visuais , Adulto , Dilatação Patológica , Feminino , Gonioscopia , Humanos , Pressão Intraocular , Masculino , Pessoa de Meia-Idade , Doenças da Esclera/diagnóstico , Tomografia de Coerência ÓpticaRESUMO
AIMS: To evaluate the effects of gestational diabetes and pre-existing diabetes on maternal morbidity and medical costs, using data from the Korea National Health Insurance Claims Database of the Health Insurance Review and Assessment Service. METHODS: Delivery cases in 2010, 2011 and 2012 (459 842, 442 225 and 380 431 deliveries) were extracted from the Health Insurance Review and Assessment Service database. The complications and medical costs were compared among the following three pregnancy groups: normal, gestational diabetes and pre-existing diabetes. RESULTS: Although, the rates of pre-existing diabetes did not fluctuate (2.5, 2.4 and 2.7%) throughout the study, the rate of gestational diabetes steadily increased (4.6, 6.2 and 8.0%). Furthermore, the rates of pre-existing diabetes and gestational diabetes increased in conjunction with maternal age, pre-existing hypertension and cases of multiple pregnancy. The risk of pregnancy-induced hypertension, urinary tract infections, premature delivery, liver disease and chronic renal disease were greater in the gestational diabetes and pre-existing diabetes groups than in the normal group. The risk of venous thromboembolism, antepartum haemorrhage, shoulder dystocia and placenta disorder were greater in the pre-existing diabetes group, but not the gestational diabetes group, compared with the normal group. The medical costs associated with delivery, the costs during pregnancy and the number of in-hospital days for the subjects in the pre-existing diabetes group were the highest among the three groups. CONCLUSIONS: The study showed that the rates of pre-existing diabetes and gestational diabetes increased with maternal age at pregnancy and were associated with increases in medical costs and pregnancy-related complications.