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1.
BMC Womens Health ; 21(1): 293, 2021 08 09.
Artículo en Inglés | MEDLINE | ID: mdl-34372846

RESUMEN

BACKGROUND: To investigate the relationship between sweating from hot flashes, anxiety, depression, and sleep quality in peri- and postmenopausal women. And also the role of anxiety and depression in mediating sweating from hot flashes and sleep quality. METHODS: 467 women aged 40-60 years with menopausal problems were enrolled. The sleep quality; hot flashes; sweating; anxiety and depression symptoms were quantitatively evaluated by Pittsburgh Sleep Quality Scale (PSQI), Kupperman Menopause Index, Self-rating Anxiety Scale and Self-rating Depression Scale. Spearman correlation analysis and mediating effect model were used to analyze the relationship between the three. RESULTS: 262 patients' PSQI score were higher than 6 (58.2%). Total scores of sleep quality were positively correlated with hot flashes, sweating and anxiety and depression symptoms. Anxiety and depression played a mediating role between hot flashes, sweating and sleep quality where the mediating effect of anxiety symptoms accounted for 17.86% (P < 0.01) and depression symptoms accounted for 5.36% (P < 0.01). CONCLUSIONS: The hot flashes, sweating, anxiety and depression of peri/postmenopausal women are risk factors affecting sleep quality. By alleviating these risk factors, the sleep quality of peri- and postmenopausal women could be improved, which prevents the physical and mental diseases due to long-term severe insomnia.


Asunto(s)
Sofocos , Sudoración , Ansiedad , Femenino , Humanos , Menopausia , Perimenopausia , Posmenopausia , Sueño
2.
Sci China Life Sci ; 64(3): 419-433, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32803714

RESUMEN

Cenpj is a centrosomal protein located at the centrosomes and the base of cilia, it plays essential roles in regulating neurogenesis and cerebral cortex development. Although centrosomal and cilium dysfunction are one of the causes of obesity, insulin resistance, and type 2 diabetes, the role that Cenpj plays in the regulation of body weight remains unclear. Here, we deleted Cenpj by crossing Cenpjflox/flox mice with Nkx2.1-Cre mice. Loss of the centrosomal protein Cenpj in Nkx2.1-expressing cells causes morbid obesity in mice at approximately 4 months of age with expended brain ventricles but no change of brain size. We found that hypothalamic cells exhibited reduced proliferation and increased apoptosis upon Cenpj depletion at the embryonic stages, resulting in a dramatic decrease in the number of Proopiomelanocortin (POMC) neurons and electrophysiological dysfunction of NPY neurons in the arcuate nucleus (ARC) in adults. Furthermore, depletion of Cenpj also reduced the neuronal projection from the ARC to the paraventricular nucleus (PVN), with decreased melanocortin-4 receptors (MC4R) expression in PVN neurons. The study defines the roles that Cenpj plays in regulating hypothalamus development and body weight, providing a foundation for further understanding of the pathological mechanisms of related diseases.


Asunto(s)
Técnicas de Silenciamiento del Gen , Hipotálamo/fisiopatología , Proteínas Asociadas a Microtúbulos/genética , Obesidad Mórbida/fisiopatología , Animales , Apoptosis , Línea Celular , Proliferación Celular , Hipotálamo/embriología , Hipotálamo/metabolismo , Ratones , Neuronas/metabolismo , Obesidad Mórbida/genética , Proopiomelanocortina/metabolismo , Receptor de Melanocortina Tipo 4/metabolismo , Factor Nuclear Tiroideo 1/genética
3.
J Cancer Res Clin Oncol ; 144(11): 2207-2218, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30094537

RESUMEN

PURPOSE: Pathologic response to neoadjuvant chemotherapy is a prognostic factor in many cancer types. However, the existing evaluative criteria are deficient. We sought to prospectively evaluate the total iodine uptake derived from dual-energy computed tomography (DECT) in predicting treatment efficacy and progression-free survival (PFS) time in gastric cancer after neoadjuvant chemotherapy. METHODS: From October 2012 to December 2015, 44 patients with locally advanced gastric cancer were examined with DECT 1 week before and three cycles after neoadjuvant chemotherapy. The percentage changes in tumor area (%ΔS), diameter (%ΔD), and density (%ΔHU) were calculated to evaluate the WHO, RESCIST, and Choi criteria. The percentage changes in tumor volume (%ΔV) and total iodine uptake of portal phase (%ΔTIU-p) were also calculated to determine cut-off values by ROC curves. The correlation between the different criteria and histopathologic tumor regression grade (Becker score) or PFS were statistically analyzed. RESULTS: Forty-four patients were divided into responders and non-responders according to 43.34% volume reduction (P = 0.002) and 63.87% (P = 0.002) TIU-p reduction, respectively. The %ΔTIU-p showed strong (r = 0.602, P = 0.000) and %ΔV showed moderate (r = 0.416, P = 0.005), while the WHO (r = 0.075, P = 0.627), RECIST (r = 0.270, P = 0.077) and Choi criteria (r = 0.238, P = 0.120) showed no correlation with the Becker score. The differences in PFS time between the responder and non-responder groups were significant according to %ΔTIU-p and Choi criteria (P = 0.001 and P = 0.013, respectively). CONCLUSIONS: The TIU-p can help predict pathological regression in advanced gastric cancer patients after neoadjuvant chemotherapy. In addition, the %ΔTIU-p could be one of the potentially valuable predictive parameters of the PFS time.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Gástricas/diagnóstico por imagen , Neoplasias Gástricas/tratamiento farmacológico , Tomografía Computarizada por Rayos X/métodos , Anciano , Femenino , Humanos , Yodo/farmacocinética , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante , Evaluación de Resultado en la Atención de Salud/métodos , Estudios Prospectivos , Criterios de Evaluación de Respuesta en Tumores Sólidos , Neoplasias Gástricas/metabolismo
4.
Eur Radiol ; 28(8): 3494-3504, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29470640

RESUMEN

PURPOSES: To evaluate the feasibility of simultaneous quantification of liver iron concentration (LIC) and fat fraction (FF) using water-fat separation and quantitative susceptibility mapping (QSM). METHODS: Forty-five patients suspected of liver iron overload (LIO) were included. A volumetric interpolated breath-hold examination sequence for QSM and FF, a fat-saturated gradient echo sequence for R2*, a spin echo sequence for LIC measurements and MRS analyses for FF (FF-MRS) were performed. Magnetic susceptibility and FF were calculated using a water-fat separation method (FF-MRI). Correlation and receiver operating characteristic analyses were performed. RESULTS: Magnetic susceptibility showed strong correlation with LIC (rs=0.918). The optimal susceptibility cut-off values were 0.34, 0.63, 1.29 and 2.23 ppm corresponding to LIC thresholds of 1.8, 3.2, 7.0 and 15.0 mg/g dry weight. The area under the curve (AUC) were 0.948, 0.970, 1 and 1, respectively. No difference in AUC was found between susceptibility and R2* at all LIC thresholds. Correlation was found between FF-MRI and FF-MRS (R2=0.910). CONCLUSIONS: QSM has a high diagnostic performance for LIC quantification, similar to that of R2*. FF-MRI provides simultaneous fat quantification. Findings suggest QSM in combination with water-fat separation has potential value for evaluating LIO, especially in cases with coexisting steatosis. KEY POINTS: • Magnetic susceptibility showed strong correlation with LIC (r s =0.918). • QSM showed high diagnostic performance for LIC, similar to that of R 2* . • Simultaneously estimated FF-MRI showed strong correlation with MR-Spectroscopy-based FF (R 2 =0.910). • QSM combining water-fat separation has quantitative value for LIO with coexisted steatosis.


Asunto(s)
Hígado Graso/diagnóstico por imagen , Hígado Graso/metabolismo , Sobrecarga de Hierro/diagnóstico por imagen , Hierro/metabolismo , Hígado/diagnóstico por imagen , Hígado/metabolismo , Espectroscopía de Resonancia Magnética/métodos , Adolescente , Adulto , Anciano , Hígado Graso/complicaciones , Estudios de Factibilidad , Femenino , Humanos , Sobrecarga de Hierro/complicaciones , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Curva ROC , Agua , Adulto Joven
5.
Br J Neurosurg ; 32(2): 165-171, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29338437

RESUMEN

PURPOSE: Rupture of an intracranial aneurysm is a life-threatening acute cerebrovascular event. The purpose of this study was to investigate whether aneurysmal subarachnoid haemorrhage (SAH) incidence rate is higher or lower in elderly population than in middle aged population. MATERIALS AND METHODS: Aneurysmal SAH cases were collected retrospectively from the archives of 21 hospitals in Mainland China. All the cases were collected from September 2016 and backward consecutively for a period of time up to 8 years. SAH was initially diagnosed by brain computed tomography (CT). CT angiography (CTA) or digital subtraction angiography (DSA) was followed and SAH was confirmed to be due to cerebral aneurysm rupture. For cases when multiple bleeding occurred, the age of the first SAH was used in this study. The total incidence from all hospitals at each age group were summed together for females and males respectively; then adjusted by the total population number at each age group for females and males which was from the 2010 population census of the People's Republic of China. RESULTS: In total there were 8,144 cases of intracranial aneurysmal SAH, with 4,861 females and 3,283 males. For females the relative aneurysmal SAH incidence rate started to decrease after around 65 years old, while for males the relative aneurysmal SAH incidence rate started to decrease after around 53 years old. CONCLUSION: Our data tentatively suggest elderly patients may be at a reduced risk of rupture compared with patients who are younger while have similar other risk factors.


Asunto(s)
Hemorragia Subaracnoidea/epidemiología , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Aneurisma Roto/diagnóstico por imagen , Aneurisma Roto/epidemiología , Angiografía de Substracción Digital , China/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Factores Sexuales , Hemorragia Subaracnoidea/diagnóstico por imagen , Tomografía Computarizada por Rayos X
6.
Hum Brain Mapp ; 38(8): 4088-4097, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28544218

RESUMEN

Heritability is well documented for psychiatric disorders and cognitive abilities which are, however, complex, involving both genetic and environmental factors. Hence, it remains challenging to discover which and how genetic variations contribute to such complex traits. In this article, they propose to use mediation analysis to bridge this gap, where neuroimaging phenotypes were utilized as intermediate variables. The Philadelphia Neurodevelopmental Cohort was investigated using genome-wide association studies (GWAS) and mediation analyses. Specifically, 951 participants were included with age ranging from 8 to 21 years. Two hundred and four neuroimaging measures were extracted from structural magnetic resonance imaging scans. GWAS were conducted for each measure to evaluate the SNP-based heritability. Furthermore, mediation analyses were employed to understand the mechanisms in which genetic variants have influence on pathological behaviors implicitly through neuroimaging phenotypes, and identified SNPs that would not be detected otherwise. Our analyses found that rs10494561, located in the intron region within NMNAT2, was associated with the severity of the prodromal symptoms of psychosis implicitly, mediated through the volume of the left hemisphere of the superior frontal region ( P=2.38×10-8). The gene NMNAT2 is known to be associated with brainstem degeneration, and produce cytoplasmic enzyme which is mainly expressed in the brain. Another SNP rs2285351 was found in the intron region of gene IFT122 which may be potentially associated with human spatial orientation ability through the area of the left hemisphere of the isthmuscingulate region ( P=3.70×10-8). Hum Brain Mapp 38:4088-4097, 2017. © 2017 Wiley Periodicals, Inc.


Asunto(s)
Cognición , Trastornos Mentales/diagnóstico por imagen , Trastornos Mentales/genética , Nicotinamida-Nucleótido Adenililtransferasa/genética , Proteínas Adaptadoras Transductoras de Señales , Adolescente , Mapeo Encefálico , Niño , Estudios de Cohortes , Proteínas del Citoesqueleto , Estudio de Asociación del Genoma Completo , Humanos , Imagen por Resonancia Magnética , Fenotipo , Philadelphia , Polimorfismo de Nucleótido Simple , Proteínas/genética , Adulto Joven
7.
Fertil Steril ; 107(3): 756-762.e3, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28089575

RESUMEN

OBJECTIVE: To investigate the association of non-cavity-distorting uterine fibroids and pregnancy outcomes after ovarian stimulation-intrauterine insemination (OS-IUI) in couples with unexplained infertility. DESIGN: Secondary analysis from a prospective, randomized, multicenter clinical trial investigating fertility outcomes after OS-IUI. SETTING: Reproductive Medicine Network clinical sites. PATIENT(S): Nine hundred couples with unexplained infertility who participated in the Assessment of Multiple Intrauterine Gestations from Ovarian Stimulation (AMIGOS) clinical trial. INTERVENTION(S): Participants were randomized to one of three arms (clomiphene citrate, letrozole, or gonadotropins), and treatment was continued for up to four cycles or until pregnancy was achieved. MAIN OUTCOMES MEASURE(S): Conception (serum hCG increase), clinical pregnancy (fetal cardiac activity), and live birth rates. RESULT(S): A total of 102/900 participants (11.3%) had at least one documented fibroid and a normal uterine cavity. Women with fibroids were older, more likely to be African American, had a greater uterine volume, lower serum antimüllerian hormone levels, and fewer antral follicles than women without fibroids. In conception cycles, clinical pregnancy rates were significantly lower in participants with fibroids than in those without uterine fibroids. Pregnancy loss before 12 weeks was more likely in African American women with fibroids compared with non-African American women with fibroids. There was no difference in conception and live birth rates in subjects with and without fibroids. CONCLUSION(S): No differences were observed in conception and live birth rates in women with non-cavity-distorting fibroids and those without fibroids. These findings provide reassurance that pregnancy success is not impacted in couples with non-cavity-distorting fibroids undergoing OS-IUI for unexplained infertility. CLINICAL TRIAL REGISTRATION NUMBER: NCT01044862.


Asunto(s)
Fármacos para la Fertilidad/administración & dosificación , Infertilidad/terapia , Inseminación Artificial , Leiomioma/complicaciones , Inducción de la Ovulación/métodos , Ovulación/efectos de los fármacos , Neoplasias Uterinas/complicaciones , Aborto Espontáneo/etnología , Adulto , Negro o Afroamericano , Quimioterapia Combinada , Femenino , Fertilidad/efectos de los fármacos , Fármacos para la Fertilidad/efectos adversos , Humanos , Infertilidad/complicaciones , Infertilidad/etnología , Infertilidad/fisiopatología , Inseminación Artificial/efectos adversos , Leiomioma/etnología , Leiomioma/fisiopatología , Nacimiento Vivo , Inducción de la Ovulación/efectos adversos , Embarazo , Índice de Embarazo , Pruebas de Embarazo , Estudios Prospectivos , Factores de Riesgo , Resultado del Tratamiento , Estados Unidos/epidemiología , Neoplasias Uterinas/etnología , Neoplasias Uterinas/fisiopatología
8.
Eur Radiol ; 27(2): 671-680, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27271924

RESUMEN

OBJECTIVES: To evaluate the potential value of advanced monoenergetic images (AMEIs) on early gastric cancer (EGC) using dual-energy CT (DECT). METHODS: 31 EGC patients (19 men, 12 women; age range, 38-81 years; mean age, 57.19 years) were retrospectively enrolled in this study. Conventionally reconstructed polyenergetic images (PEIs) at 120 kV and virtual monoenergetic images (MEIs) and AMEIs at six different kiloelectron volt (keV) levels (from 40 to 90 keV) were evaluated from the 100 and Sn 140 kV dual energy image data, respectively. The visibility and stage migration of EGC for all three image data sets were evaluated and statistically analyzed. The objective and subjective image qualities were also evaluated. RESULTS: AMEIs at 40 keV showed the best visibility (80.7 %) and the lowest stage migration (35.5 %) for EGC. The stage migration for AMEIs at 40 keV was significantly lower than that for PEIs (p = 0.026). AMEIs at 40 keV had statistically higher CNR in the arterial and portal phases, gastric-specific diagnostic performance and visual sharpness compared with other AMEIs, MEIs and PEIs (all p < 0.05). CONCLUSIONS: AMEIs at 40 keV with MPR increase the CNR of EGC and thus potentially lower the stage migration of EGC. KEY POINTS: • AMEIs benefits from the recombination of low-keV images and medium energies. • AMEIs could receive better CNR results than MEIs. • AMEIs at 40 keV potentially lower the stage migration of EGC.


Asunto(s)
Detección Precoz del Cáncer/métodos , Procesamiento de Imagen Asistido por Computador/métodos , Neoplasias Gástricas/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adulto , Anciano , Anciano de 80 o más Años , Algoritmos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Sensibilidad y Especificidad , Estómago/diagnóstico por imagen
9.
Eur J Radiol ; 84(2): 228-34, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25497234

RESUMEN

OBJECTIVES: To investigate the value of dual energy spectral CT (DEsCT) imaging in differentiating metastatic from non-metastatic lymph nodes in rectal cancer. METHODS: Fifty-five patients with rectal cancer underwent the arterial phase (AP) and portal venous phase (PP) contrast-enhanced DEsCT imaging. The virtual monochromatic images and iodine-based material decomposition images derived from DEsCT imaging were interpreted for lymph nodes (LNs) measurement. The short axis diameter and the normalized iodine concentration (nIC) of metastatic and non-metastatic LNs were measured. The two-sample t test was used to compare the short axis diameters and nIC values of metastatic and non-metastatic LNs. ROC analysis was performed to assess the diagnostic performance. RESULTS: One hundred and fifty two LNs including 92 non-metastatic LNs and 60 metastatic LNs were matched using the radiological-pathological correlation. The mean short axis diameter of metastatic LNs was significantly larger than that of the non-metastatic LNs (7.28±2.28mm vs. 4.90±1.64mm, P<0.001). The mean nIC value for metastatic LNs was significantly lower than that of non-metastatic LNs (0.24±0.08 vs. 0.34±0.21, P=0.001 in AP; 0.47±0.18 vs. 0.64±0.17, P<0.001 in PP). Combining nIC (PP) with the short axis diameter, the overall accuracy could be improved to 82.9%. CONCLUSIONS: With the combination of nIC value in PP and conventional size criterion, dual energy spectral imaging may be used to differentiate metastatic from non-metastatic lymph nodes in rectal cancer.


Asunto(s)
Compuestos de Yodo/administración & dosificación , Ganglios Linfáticos/patología , Metástasis Linfática/diagnóstico por imagen , Imagen Radiográfica por Emisión de Doble Fotón , Neoplasias del Recto/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Adulto , Anciano , Medios de Contraste , Diagnóstico Diferencial , Femenino , Humanos , Ganglios Linfáticos/diagnóstico por imagen , Metástasis Linfática/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Vena Porta/patología , Curva ROC , Neoplasias del Recto/patología , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Tomografía Computarizada por Rayos X/métodos
10.
PLoS One ; 9(11): e112295, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25393001

RESUMEN

OBJECTIVES: To compare the true non-enhanced (TNE) and virtual non-enhanced (VNE) data sets in patients who underwent gastric preoperative dual-energy CT (DECT) and to evaluate potential radiation dose reduction by omitting a TNE scan. METHODS: A total of 74 patients underwent gastric DECT. The mean CT values, length, image quality and effective radiation doses for VNE and TNE images were compared. RESULTS: There was no statistical difference in maximal thickness of gastric tumors and maximal diameter of enlarged lymph nodes among the TNE and VNE images (P>0.05). The mean CT value differences between TNE and VNE were statistically significant for all tissue types, except for aorta attenuation measurements (P<0.05), but the absolute differences were under 10 HU. Lower noise was found for VNE images than TNE images (P<0.01). Image quality of VNE was diagnostic but lower than that of TNE (P<0.01). The dose reduction achieved by omitting the TNE acquisition was 21.40 ± 4.44%. CONCLUSION: VNE scan may potentially replace TNE as part of a multi-phase gastric preoperative staging imaging protocol with consequent saving in radiation dose.


Asunto(s)
Imagen Radiográfica por Emisión de Doble Fotón/métodos , Neoplasias Gástricas/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dosis de Radiación
11.
J Clin Hypertens (Greenwich) ; 16(9): 652-7, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25056509

RESUMEN

To study the relationship between nocturnal blood pressure (BP) variation and spontaneous intracerebral hemorrhage (ICH) among Chinese hypertensive patients and its clinical significance, the authors retrospectively screened 371 patients with primary hypertension (189 patients with ICH, 182 patients without ICH) in Shanghai and analyzed their demographics, clinical information, nocturnal blood pressure variability and medication. Compared with the control group, the levels of blood glucose, triglycerides, and creatinine were significantly increased in the ICH group, along with a marked reduction in nocturnal BP drop (P<.05). Multivariate logistic regression indicated that blood glucose, creatinine, and nocturnal mean arterial pressure were risk factors for ICH, and the magnitude of nocturnal BP drop was negatively related to the risk for ICH. There was no significant difference in the prevalence of reverse dippers between the large hematoma volume group and the small hematoma volume group (χ(2) =2.529, P=.112), nor among the patients taking angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, or calcium channel blockers (χ(2) =1.981, P=.371). Reverse dipping is associated with the risk for ICH, suggesting that appropriate antihypertensive drug and chronotherapy might be effective to normalize the rhythm of abnormal circadian variation in hypertensive patients.


Asunto(s)
Pueblo Asiatico , Presión Sanguínea/fisiología , Ritmo Circadiano/fisiología , Hipertensión/complicaciones , Hipertensión/etnología , Accidente Cerebrovascular/etnología , Accidente Cerebrovascular/epidemiología , Anciano , Antagonistas de Receptores de Angiotensina/farmacología , Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/farmacología , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Antihipertensivos/farmacología , Antihipertensivos/uso terapéutico , Presión Sanguínea/efectos de los fármacos , Monitoreo Ambulatorio de la Presión Arterial , Bloqueadores de los Canales de Calcio/farmacología , Bloqueadores de los Canales de Calcio/uso terapéutico , Estudios de Casos y Controles , China/epidemiología , Femenino , Humanos , Hipertensión/tratamiento farmacológico , Modelos Logísticos , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Factores de Riesgo
12.
Lancet Respir Med ; 2(3): 187-94, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24621680

RESUMEN

BACKGROUND: Increased oxidative stress and inflammation has a role in the pathogenesis of chronic obstructive pulmonary disease (COPD). Drugs with antioxidant and anti-inflammatory properties, such as N-acetylcysteine, might provide a useful therapeutic approach for COPD. We aimed to assess whether N-acetylcysteine could reduce the rate of exacerbations in patients with COPD. METHODS: In our prospective, randomised, double-blind, placebo-controlled, parallel-group study, we enrolled patients aged 40-80 years with moderate-to-severe COPD (post-bronchodilator forced expiratory volume in 1 s [FEV1]/forced vital capacity <0·7 and FEV1 of 30-70% of predicted) at 34 hospitals in China. We stratified patients according to use of inhaled corticosteroids (regular use or not) at baseline and randomly allocated them to receive N-acetylcysteine (one 600 mg tablet, twice daily) or matched placebo for 1 year. The primary endpoint was the annual exacerbation rate in patients who received at least one dose of study drug and had at least one assessment visit after randomisation. This study is registered with the Chinese Clinical Trials Registry, ChiCTR-TRC-09000460. FINDINGS: Between June 25, 2009, and Dec 29, 2010, we screened 1297 patients, of whom 1006 were eligible for randomisation (504 to N-acetylcysteine and 502 to placebo). After 1 year, we noted 497 acute exacerbations in 482 patients in the N-acetylcysteine group who received at least one dose and had at least one assessment visit (1·16 exacerbations per patient-year) and 641 acute exacerbations in 482 patients in the placebo group (1·49 exacerbations per patient-year; risk ratio 0·78, 95% CI 0·67-0·90; p=0·0011). N-acetylcysteine was well tolerated: 146 (29%) of 495 patients who received at least one dose of N-acetylcysteine had adverse events (48 serious), as did 130 (26%) of 495 patients who received at least one dose of placebo (46 serious). The most common serious adverse event was acute exacerbation of COPD, occurring in 32 (6%) of 495 patients in the N-acetylcysteine group and 36 (7%) of 495 patients in the placebo group. INTERPRETATION: Our findings show that in Chinese patients with moderate-to-severe COPD, long-term use of N-acetylcysteine 600 mg twice daily can prevent exacerbations, especially in disease of moderate severity. Future studies are needed to explore efficacy in patients with mild COPD (GOLD I). FUNDING: Hainan Zambon Pharmaceutical.


Asunto(s)
Acetilcisteína/administración & dosificación , Depuradores de Radicales Libres/administración & dosificación , Enfermedad Pulmonar Obstructiva Crónica/complicaciones , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , China , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Esquema de Medicación , Femenino , Volumen Espiratorio Forzado , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Resultado del Tratamiento , Capacidad Vital
13.
PLoS One ; 8(2): e53651, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23424614

RESUMEN

PURPOSE: To evaluate the clinical utility of dual energy spectral CT (DEsCT) in staging and characterizing gastric cancers. MATERIALS AND METHODS: 96 patients suspected of gastric cancers underwent dual-phasic scans (arterial phase (AP) and portal venous phase (PP)) with DEsCT mode. Three types of images were reconstructed for analysis: conventional polychromatic images, material-decomposition images, and monochromatic image sets with photon energies from 40 to 140 keV. The polychromatic and monochromatic images were compared in TNM staging. The iodine concentrations in the lesions and lymph nodes were measured on the iodine-based material-decomposition images. These values were further normalized against that in aorta and the normalized iodine concentration (nIC) values were statistically compared. Results were correlated with pathological findings. RESULTS: The overall accuracies for T, N and M staging were (81.2%, 80.0%, and 98.9%) and (73.9%, 75.0%, and 98.9%) determined with the monochromatic images and the conventional kVp images, respectively. The improvement of the accuracy in N-staging using the keV images was statistically significant (p<0.05). The nIC values between the differentiated and undifferentiated carcinoma and between metastatic and non-metastatic lymph nodes were significantly different both in AP (p = 0.02, respectively) and PP (p = 0.01, respectively). Among metastatic lymph nodes, nIC of the signet-ring cell carcinoma were significantly different from the adenocarcinoma (p = 0.02) and mucinous adenocarcinoma (p = 0.01) in PP. CONCLUSION: The monochromatic images obtained with DEsCT may be used to improve the N-staging accuracy. Quantitative iodine concentration measurements may be helpful for differentiating between differentiated and undifferentiated gastric carcinoma, and between metastatic and non-metastatic lymph nodes.


Asunto(s)
Estadificación de Neoplasias/métodos , Imagen Radiográfica por Emisión de Doble Fotón/métodos , Neoplasias Gástricas/diagnóstico por imagen , Neoplasias Gástricas/patología , Adulto , Anciano , Femenino , Humanos , Interpretación de Imagen Asistida por Computador , Yodo/metabolismo , Masculino , Persona de Mediana Edad , Neoplasias Gástricas/metabolismo
14.
Metab Brain Dis ; 27(1): 17-22, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22193539

RESUMEN

To investigate the relationship between Silent Cerebral Infarction (SCI) and cognitive impairment to testify that Montreal Cognitive Assessment (MoCA) is a more sensitive screening tool than the Mini Mental State Examination (MMSE) to identify cognitive deficits in patients with SCI. We recruited 196 individuals in Shanghai of China and divided them into 2 groups: the SCI group including 112 individuals (45 men and 67 women; aged from 43 to 70 years old) and the control group including 84 individuals (43 men and 41 women; aged from 42 to 79 years old). We collected information including participants' gender, age, blood glucose, kidney function, blood lipids, blood pressure, Electrocardiogram (ECG), carotid artery ultrasound, MMSE score, and MoCA score. SAS software (version 9.1) was used to perform statistical analysis on physical examinations outcomes from 196 participants. Furthermore, multiple logistic regression model was built up to screen out the independent risk factors of SCI. Besides, Receiver Operator Characteristic (ROC) analysis was also used. Multivariate logistic regression analysis showed that abnormal ECG and existence of carotid artery plaques were independent risk factors of SCI occurrence, while MoCA scores was negatively associated with SCI risk. Moreover, MoCA might be more valuable in predicting vascular cognitive impairment (VCI) than MMSE (0.667 vs 0.626). We found that the MMSE was generally insensitive to detect cognitive impairment; but the MoCA has a good balance of sensitivity and specificity at the cut-score of 26. We found that the patients with SCI might accompany with VCI and the MoCA appeared to be an excellent screening test for patients with SCI, worthy of being promoted in the clinical practitioning on Chinese population.


Asunto(s)
Infarto Cerebral/complicaciones , Trastornos del Conocimiento/diagnóstico , Trastornos del Conocimiento/etiología , Adulto , Anciano , Pueblo Asiatico , Estenosis Carotídea/complicaciones , Electrocardiografía , Femenino , Humanos , Masculino , Escala del Estado Mental , Persona de Mediana Edad , Pruebas Neuropsicológicas , Estudios Prospectivos , Curva ROC , Análisis de Regresión , Factores de Riesgo
15.
Leuk Res ; 35(9): 1170-7, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21774985

RESUMEN

Arsenic trioxide (ATO) and all-trans-retinoic acid (ATRA) could induce apoptosis and differentiation in acute promyelocytic leukemia (APL) cells, respectively, thus the possibility of synergism between them was raised. This meta-analysis assessed the effectiveness and safety of ATO combined with ATRA in the treatment of APL. Compared with ATO alone, induction therapy with ATO/ATRA significantly increased the complete remission (CR) rate (RR: 1.08, 95% CI: 1.00-1.17, P=0.04), shortened the time to achieve CR (WMD: -6.51, 95% CI: -11.32 to -1.70, P=0.008), and improved the molecular remission rate after consolidation therapy (RR: 1.74, 95% CI: 1.14-2.66, P=0.01) and the 1-year disease-free survival rate (RR: 1.22, 95% CI: 1.00-1.50, P=0.05). There were no statistically significant differences between two treatments in terms of early death and main adverse events. These results suggested that ATO/ATRA could synergistically improve the overall outcome of newly diagnosed and relapsed APL patients, supporting the use of ATO/ATRA as an effective treatment for all APL patients previously untreated with ATO.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Arsenicales/administración & dosificación , Arsenicales/efectos adversos , Leucemia Promielocítica Aguda/tratamiento farmacológico , Óxidos/administración & dosificación , Óxidos/efectos adversos , Tretinoina/administración & dosificación , Adolescente , Adulto , Anciano , Algoritmos , Trióxido de Arsénico , Niño , Ensayos Clínicos como Asunto/estadística & datos numéricos , Femenino , Humanos , Leucemia Promielocítica Aguda/epidemiología , Leucemia Promielocítica Aguda/mortalidad , Masculino , Persona de Mediana Edad , Ensayos Clínicos Controlados Aleatorios como Asunto/estadística & datos numéricos , Análisis de Supervivencia , Resultado del Tratamiento , Tretinoina/efectos adversos , Adulto Joven
16.
J Ocul Pharmacol Ther ; 27(4): 361-8, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21649523

RESUMEN

OBJECTIVES: Myopia is the most common ocular disorder associated with increasing risk for chorioretinal degeneration, retinal detachment, and other vision-threatening abnormalities worldwide. Recently, atropine has been becoming a focus of attention due to its role in ameliorating the myopia progression in children. This meta-analysis was conducted to address the efficacy and safety of atropine on myopia in children and the dose-response relationship between atropine and annual rate of myopia progression. METHODS: Controlled clinical trials were retrospectively analyzed to compare atropine and placebo for the treatment of myopia. The primary outcome measure was annual rate of myopia progression after daily atropine application over 1 year. Data were extracted from 6 randomized clinical trials and analyzed using standard meta-analysis and meta-regression methods. RESULTS: Comparing with placebo, the effect size of atropine for retarding myopia progression was 0.773 diopters (D)/year [95% confidence interval (CI): 0.699-0.848]. Regression model, -0.728+1.281log (dose+1), revealed the dose-response relationship between atropine and myopia progression. The estimate of effect for 0.05%, 0.1%, and 0.25% atropine was -0.665 (95% CI: -1.070 to -0.260), -0.606 (95% CI: -0.967 to -0.245), and -0.442 (95% CI: -0.701 to -0.183) D/year respectively, whereas that for 0.5% and 1% was -0.208 (95% CI: -0.435-0.018) and 0.160 (95% CI: -0.293-0.613), respectively, suggesting that myopia might deteriorate at low dose of atropine but not at 0.5% atropine and 1% atropine within the duration of 6-24 months. No serious adverse event was reported during the period of treatment. The major adverse reactions associated with 0.5% and 1% atropine were photophobia, glare, and recurrent allergic blepharitis. Photochromatic lenses or sunglasses with ultraviolet protection could be used to minimize the glare and photophobia. CONCLUSION: In summary, 0.5% and 1% atropine was demonstrated to be effective and safe to ameliorate myopia progression in childhood with low-to-moderate myopia.


Asunto(s)
Atropina/uso terapéutico , Midriáticos/uso terapéutico , Miopía/tratamiento farmacológico , Adolescente , Atropina/administración & dosificación , Atropina/efectos adversos , Niño , Preescolar , Ensayos Clínicos Controlados como Asunto , Progresión de la Enfermedad , Relación Dosis-Respuesta a Droga , Estudios de Seguimiento , Humanos , Midriáticos/administración & dosificación , Midriáticos/efectos adversos , Soluciones Oftálmicas , Análisis de Regresión , Estudios Retrospectivos
17.
J Neural Transm (Vienna) ; 116(4): 457-65, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19221692

RESUMEN

The objective of this study was to provide an updated meta-analysis of the efficacy and safety of huperzine A (HupA) in Alzheimer's disease (AD). We searched for randomized trials comparing HupA with placebo in the treatment of AD. The primary outcome measures were mini-mental state examination (MMSE) and activities of daily living scale (ADL). Data were extracted from four randomized clinical trials and analyzed using standard meta-analysis and meta-regression methods. Oral administration of HupA for 8-24 weeks (300-500 microg daily) led to significant improvements in MMSE and ADL. The results of meta-regression showed that the estimated effect size of MMSE and ADL was increased over the treatment time. Most adverse events were cholinergic in nature and no serious adverse events occurred. Huperzine A is a well-tolerated drug that could significantly improve cognitive performance and ADL in patients with AD.


Asunto(s)
Enfermedad de Alzheimer/tratamiento farmacológico , Inhibidores de la Colinesterasa/uso terapéutico , Sesquiterpenos/uso terapéutico , Actividades Cotidianas , Alcaloides , Inhibidores de la Colinesterasa/efectos adversos , Humanos , Escalas de Valoración Psiquiátrica , Ensayos Clínicos Controlados Aleatorios como Asunto , Análisis de Regresión , Sesquiterpenos/efectos adversos , Resultado del Tratamiento
18.
J Affect Disord ; 111(2-3): 125-34, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18550177

RESUMEN

BACKGROUND: Depression is one of the most common mental health disorders. Acupuncture is a popular complementary and alternative medicine intervention suggested in the treatment of depression, but its effectiveness is uncertain. This updated meta-analysis was conducted to more precisely assess the beneficial effect of acupuncture in depression therapy. METHODS: The following databases were searched: MEDLINE, EMBASE, BIOSIS, Cochrane Central Register of Controlled Trials, and Chinese Scientific Journal Database. The following terms were used: acupuncture, acupressure, depression, depressive disorder, clinical trial, and randomized controlled trial. RESULTS: Eight small-randomized controlled trials comparing 477 subjects were included in the meta-analysis. Our results confirmed that acupuncture could significantly reduce the severity of depression, which was indicated by decreased scores of Hamilton rating scale for depression (HAMD) or Beck Depression Inventory (BDI). The pooled standardized mean difference of the 'Improvement of depression' was -0.65 (95% CI -1.18, -0.11; P=0.02) by random effect model. However, no significant effect of active acupuncture was found on the response rate (RR 1.32, 95% CI 0.83 to 2.10; P=0.25) and remission rate (RR 1.30, 95% CI 0.57 to 2.95; P=0.53). CONCLUSION: Although this meta-analysis might be discounted due to the low quality of individual trials, it supported that acupuncture was an effective treatment that could significantly reduce the severity of disease in the patients with depression. More full-scale randomized clinical trials with reliable designs are recommended to further warrant the effectiveness of acupuncture.


Asunto(s)
Terapia por Acupuntura/métodos , Trastorno Depresivo/terapia , Ensayos Clínicos Controlados Aleatorios como Asunto/estadística & datos numéricos , Trastorno Depresivo/diagnóstico , Trastorno Depresivo/psicología , Femenino , Humanos , Masculino , Inventario de Personalidad/estadística & datos numéricos , Estudios Prospectivos , Escalas de Valoración Psiquiátrica/estadística & datos numéricos , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
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