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1.
J Eur Acad Dermatol Venereol ; 34(3): 624-632, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31494973

RESUMO

BACKGROUND: Recent evidence suggests melasma to be a photoaging disorder. Triple combination creams (TCC: fluocinolone acetonide 0.01%, hydroquinone 4% and tretinoin 0.05%) remain the gold standard treatment. Picosecond alexandrite laser treatment using a diffractive lens array (DLA) has been identified to be effective for improving photoaging conditions. OBJECTIVE: We aimed to compare the efficacy and tolerance of the picosecond alexandrite laser with those of DLA and TCC in female Asian patients with melasma. METHODS: Twenty-nine patients were randomly assigned to group A1 (3 laser sessions at 4-week intervals), A2 (5 laser sessions at 4-week intervals) or B (TCC daily for at least 8 weeks and then tapered until the final evaluation). The Melasma Area, Severity Index (MASI) score and VISIA were assessed at baseline, week 12 and week 20. By week 20, the follow-up periods for groups A1 and A2 were 3 months and 1 month, respectively. RESULTS: Nine, 11 and 6 participants in groups A1, A2 and B completed the study, respectively. MASI scores were significantly improved in all 3 groups at weeks 12 and 20. In groups A1, A2 and B, the improvement rates at week 20 were 53%, 38% and 50%, respectively. VISIA® analysis additionally revealed a significant improvement in spots, porphyria, pores and brown spots after 3 laser sessions (P < 0.05). Group A2 showed greater improvements than group A1 in terms of spots, wrinkles and pores; however, only red areas were significantly different (P < 0.001). All side-effects in the 3 groups were transient and gradually subsided after 1-3 months. CONCLUSION: Picosecond alexandrite laser treatment using DLA showed comparable efficacy with TCC for the treatment of melasma. Improvements in texture, spots, wrinkles and pores were observed in the laser groups. Patients with melasma lesions that exhibit telangiectasia may benefit from additional laser treatment sessions.


Assuntos
Fluocinolona Acetonida/administração & dosagem , Hidroquinonas/administração & dosagem , Lasers de Estado Sólido/uso terapêutico , Melanose/tratamento farmacológico , Melanose/cirurgia , Tretinoína/administração & dosagem , Adulto , Povo Asiático , Terapia Combinada , Combinação de Medicamentos , Feminino , Humanos , Pessoa de Meia-Idade , Pomadas , Estudos Prospectivos , Método Simples-Cego , Resultado do Tratamento
2.
Int J Tuberc Lung Dis ; 22(6): 637-640, 2018 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-29862947

RESUMO

BACKGROUND: As Mycobacterium tuberculosis is an aerobic microbe, hyperbaric oxygen therapy (HBOT) could trigger progression from latent tuberculous infection (LTBI) to active tuberculosis (TB) disease. OBJECTIVE: To evaluate the effect of HBOT on TB reactivation. DESIGN: Our study sample was from the National Health Insurance Research Database containing one million beneficiaries. We identified a group of patients who underwent HBOT, and matched this group with individuals without HBOT. We compared the incidence of activation of TB between these two groups. RESULTS: A total of 2258 patients were identified, with each group comprising 1129 patients. One year after exposure to hyperbaric oxygen, the number of cases of active TB was significantly higher in the HBOT group than in the non-HBOT group (11 cases vs. 1 case, P = 0.006). Multiple regression analysis showed that HBOT was the only statistically significant contributor to TB activation. CONCLUSION: HBOT is likely to trigger the reactivation of TB. High-risk patients should undergo the tuberculin skin test or interferon-gamma release assays before HBOT to identify patients with LTBI.


Assuntos
Oxigenoterapia Hiperbárica/efeitos adversos , Tuberculose Latente/microbiologia , Mycobacterium tuberculosis/isolamento & purificação , Tuberculose/epidemiologia , Bases de Dados Factuais , Progressão da Doença , Feminino , Humanos , Oxigenoterapia Hiperbárica/métodos , Incidência , Testes de Liberação de Interferon-gama/métodos , Tuberculose Latente/epidemiologia , Masculino , Pessoa de Meia-Idade , Análise de Regressão , Estudos Retrospectivos , Fatores de Risco , Teste Tuberculínico/métodos , Tuberculose/diagnóstico , Tuberculose/etiologia
3.
Neurogastroenterol Motil ; 30(7): e13318, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29488287

RESUMO

BACKGROUND: On the basis of the importance of the enteric nervous system (ENS) in gastrointestinal motility, we hypothesized that the ENS may mediate the therapeutic efficacy of electro-acupuncture (EA) in constipation by regulating the mechanisms underlying the effects of EA on gastrointestinal function. METHODS: Model mice with constipation were generated by gastric instillation of 0-4°C normal saline. Defecation time and stool (form and wet and dry weight) were assessed. The effect of EA at ST37 or ST25 on colorectal motility and proximal colonic motility was assessed using a water-filled balloon. The expression of protein gene product 9.5 (PGP9.5), the cholinergic neuron marker acetyltransferase (ChAT) and the anticholinergic neuron marker nitric oxide synthase (nNOS) was detected by immunohistochemistry, real-time quantitative polymerase chain reaction (qPCR) and western blot analysis. KEY RESULTS: ST37 and ST25 improved colorectal pressure; however, ST37 but not ST25 improved proximal colonic pressure. In the proximal colon, the expression of PGP9.5 returned to normal after EA at ST 37, while EA at ST25 did not have this effect. In addition, qPCR and western blot analysis showed that ST37 could downregulate the expression of nNOS and upregulate the expression of ChAT to normal levels, while ST25 could only downregulate the expression of nNOS to normal levels. CONCLUSIONS AND INFERENCES: Electro-acupuncture at specific acupoints can improve intestinal motility in constipation by altering the ENS and differentially affecting excitatory and inhibitory neurons, restoring the coordination between contraction and relaxation muscles, and working in concert with the central nervous system and peripheral neural pathways.


Assuntos
Pontos de Acupuntura , Colo/fisiologia , Eletroacupuntura/métodos , Sistema Nervoso Entérico/fisiologia , Motilidade Gastrointestinal/fisiologia , Inibição Neural/fisiologia , Animais , Constipação Intestinal/fisiopatologia , Constipação Intestinal/terapia , Camundongos , Camundongos Endogâmicos C57BL , Distribuição Aleatória
4.
Clin. transl. oncol. (Print) ; 17(2): 152-159, feb. 2015. tab, ilus
Artigo em Inglês | IBECS | ID: ibc-132886

RESUMO

Purpose. Y-box binding protein 1 (YB-1) expression in cancer cells is closely associated with malignant progression and poor prognosis in various cancers. Recently, we demonstrated that YB-1 expression in cancer cells is an immunomarker for patient prognosis and liver metastasis of gastric cancer (GC), and identified YB-1 as an excellent biomarker of angiogenic and proliferating endothelial cells in cancers. We further explored the expression patterns of YB-1 in gastric vasculature and the relationship with the clinical pathologic characteristics, as well as YB-1 phenotype in cancer cells. Methods/Patients. Immunohistochemical analysis of YB-1 was performed using 163 surgically resected primary GC specimens. Results. YB-1 expression in cancer cells significantly differed with respect to Lauren type, JGCA classification, vascular invasion (VI), and microvessel density (MVD) of cancers (P = 0.018, P = 0.002, P < 0.001, and P < 0.001, respectively). No correlation was found between cancer-cell YB-1 expression and TNM stage or lymphatic invasion. However, YB-1 expression in vascular endothelial cells significantly correlated with N stage, M stage, TNM stage, and MVD of cancers (P < 0.001, P = 0.013, P < 0.001, and P < 0.001, respectively). Notably, cases with YB-1 expression in cancer vasculature also demonstrated YB-1 expression in cancer cells (P = 0.040). Conclusions. YB-1 may promote GC development through its function in both cancer cells and cancer vascular cells, and thus represent a potential biomarker in this disease (AU)


No disponible


Assuntos
Humanos , Masculino , Feminino , Neoplasias Gástricas/complicações , Imuno-Histoquímica/instrumentação , Imuno-Histoquímica/métodos , Neoplasias Esplênicas/complicações , Neoplasias Esplênicas/diagnóstico , Metástase Neoplásica/diagnóstico , Expressão Gênica , Neoplasias Gástricas/classificação , Neoplasias Gástricas/patologia , Imuno-Histoquímica/normas , Imuno-Histoquímica , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/diagnóstico , Células Endoteliais , Células Endoteliais/patologia
5.
Clin Transl Oncol ; 17(2): 152-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25078572

RESUMO

PURPOSE: Y-box binding protein 1 (YB-1) expression in cancer cells is closely associated with malignant progression and poor prognosis in various cancers. Recently, we demonstrated that YB-1 expression in cancer cells is an immunomarker for patient prognosis and liver metastasis of gastric cancer (GC), and identified YB-1 as an excellent biomarker of angiogenic and proliferating endothelial cells in cancers. We further explored the expression patterns of YB-1 in gastric vasculature and the relationship with the clinical pathologic characteristics, as well as YB-1 phenotype in cancer cells. METHODS/PATIENTS: Immunohistochemical analysis of YB-1 was performed using 163 surgically resected primary GC specimens. RESULTS: YB-1 expression in cancer cells significantly differed with respect to Lauren type, JGCA classification, vascular invasion (VI), and microvessel density (MVD) of cancers (P = 0.018, P = 0.002, P < 0.001, and P < 0.001, respectively). No correlation was found between cancer-cell YB-1 expression and TNM stage or lymphatic invasion. However, YB-1 expression in vascular endothelial cells significantly correlated with N stage, M stage, TNM stage, and MVD of cancers (P < 0.001, P = 0.013, P < 0.001, and P < 0.001, respectively). Notably, cases with YB-1 expression in cancer vasculature also demonstrated YB-1 expression in cancer cells (P = 0.040). CONCLUSIONS: YB-1 may promote GC development through its function in both cancer cells and cancer vascular cells, and thus represent a potential biomarker in this disease.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma de Células em Anel de Sinete/secundário , Endotélio Vascular/patologia , Neovascularização Patológica/metabolismo , Neoplasias Gástricas/classificação , Neoplasias Gástricas/patologia , Proteína 1 de Ligação a Y-Box/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células em Anel de Sinete/irrigação sanguínea , Carcinoma de Células em Anel de Sinete/metabolismo , Progressão da Doença , Endotélio Vascular/metabolismo , Feminino , Seguimentos , Humanos , Técnicas Imunoenzimáticas , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias , Neovascularização Patológica/patologia , Prognóstico , Neoplasias Gástricas/irrigação sanguínea , Neoplasias Gástricas/metabolismo
6.
Heart Lung Circ ; 23(1): e1-3, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23790568

RESUMO

A 64 year-old male presented with a five month history of effort angina. Non-invasive studies demonstrated preserved left ventricular function and a modest stress-induced myocardial perfusion defect at the anterior wall. Coronary angiography revealed occlusion of the proximal left anterior descending coronary artery with its distal segment well supplied by collaterals branching from a left circumflex-to-main pulmonary artery fistula. The occluded left anterior descending coronary artery was recanalised by percutaneous interventions, the collaterals vanished immediately, and the patient lived free of symptoms for the following five months.


Assuntos
Fístula Artério-Arterial , Angiografia Coronária , Doença da Artéria Coronariana , Vasos Coronários , Intervenção Coronária Percutânea , Artéria Pulmonar , Fístula Artério-Arterial/diagnóstico por imagem , Fístula Artério-Arterial/fisiopatologia , Fístula Artério-Arterial/cirurgia , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/fisiopatologia , Vasos Coronários/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Artéria Pulmonar/diagnóstico por imagem , Artéria Pulmonar/fisiopatologia , Artéria Pulmonar/cirurgia , Função Ventricular Esquerda
7.
Osteoarthritis Cartilage ; 21(12): 1976-86, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24084190

RESUMO

OBJECTIVE: To study the effect of intra-articular injection of meloxicam (Mobic) on the development of osteoarthritis (OA) in rats and examine concomitant changes in nociceptive behavior and the expression of mitogen-activated protein kinases (MAPKs) in articular cartilage chondrocytes. METHODS: OA was induced in Wistar rats by right anterior cruciate ligament transection (ACLT); the left knee was not treated. The OA + meloxicam (1.0 mg) group was injected intra-articularly in the ACLT knee with 1.0 mg of meloxicam once a week for 5 consecutive weeks starting 5 weeks after ACLT. The OA + meloxicam (0.25 mg) group was treated similarly with 0.25 mg meloxicam. The sham group underwent arthrotomy only and received vehicle of 0.1 mL sterile 0.9% saline injections, whereas the naive rats in meloxicam-only groups were treated similarly with 1.0- and 0.25-mg meloxicam. Nociception was measured as secondary mechanical allodynia and hind paw weight-bearing distribution at before (pre-) and 5, 10, 15, and 20 weeks post-ACLT. Histopathology of the cartilage and synovia was examined 20 weeks after ACLT. Immunohistochemical analysis was performed to examine the effect of meloxicam on MAPKs (p38, c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinase (ERK)) expression in the articular cartilage chondrocytes. RESULTS: OA rats receiving intra-articular meloxicam treatment showed significantly less cartilage degeneration and synovitis than saline-treated controls. Nociception were improved in the OA + meloxicam groups compared with the OA group. Moreover, meloxicam attenuated p38 and JNK but enhanced ERK expression in OA-affected cartilage. CONCLUSIONS: Intra-articular injection of meloxicam (1) attenuates the development of OA, (2) concomitantly reduces nociception, and (3) modulates chondrocyte metabolism, possibly through inhibition of cellular p38 and JNK, but enhances ERK expression.


Assuntos
Artrite Experimental/enzimologia , Cartilagem Articular/efeitos dos fármacos , Condrócitos/efeitos dos fármacos , Inibidores de Ciclo-Oxigenase 2/farmacologia , Proteínas Quinases Ativadas por Mitógeno/efeitos dos fármacos , Nociceptividade/efeitos dos fármacos , Osteoartrite do Joelho/enzimologia , Tiazinas/farmacologia , Tiazóis/farmacologia , Animais , Lesões do Ligamento Cruzado Anterior , Artrite Experimental/tratamento farmacológico , Artrite Experimental/patologia , Cartilagem Articular/citologia , Cartilagem Articular/patologia , Condrócitos/enzimologia , Inibidores de Ciclo-Oxigenase 2/uso terapêutico , MAP Quinases Reguladas por Sinal Extracelular/efeitos dos fármacos , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Injeções Intra-Articulares , Proteínas Quinases JNK Ativadas por Mitógeno/efeitos dos fármacos , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Meloxicam , Proteínas Quinases Ativadas por Mitógeno/metabolismo , Osteoartrite do Joelho/tratamento farmacológico , Osteoartrite do Joelho/patologia , Ratos , Ratos Wistar , Membrana Sinovial/patologia , Tiazinas/uso terapêutico , Tiazóis/uso terapêutico , Proteínas Quinases p38 Ativadas por Mitógeno/efeitos dos fármacos , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo
8.
Br J Cancer ; 109(2): 472-81, 2013 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-23799843

RESUMO

BACKGROUND: The polypeptide N-acetylgalactosaminyltransferases (GalNAc-Ts) family of enzymes regulates the initial steps of mucin-type O-glycosylation. N-acetylgalactosaminyltransferases might show novel patterns of GalNAc-T glycosylation on tumour-derived proteins, which could influence cancer biology, but its mechanisms are unclear. We investigated the association of GalNAc-T3 and -T6 expressions with clinicopathological features and prognoses of patients with renal cell carcinomas (RCCs). METHODS: Expressions of GalNAc-T3/6 and cell-adhesion molecules were analysed immunohistochemically in 254 paraffin-embedded tumour samples of patients with RCC. RESULTS: Of 138 GalNAc-T3+ cases, 46 revealed significant co-expression with GalNAc-T6. N-acetylgalactosaminyltransferases-3+ expression showed a close relationship to poor clinical performance and large tumour size, or pathologically high Fuhrman's grading, and presence of vascular invasion and necrosis. The GalNAc-T3-positivity potentially suppressed adhesive effects with a significantly low ß-catenin expression. Univariate and multivariate analyses showed the GalNAc-T3+ group, but not the GalNAc-T6+ group, to have significantly worse survival rates. CONCLUSION: N-acetylgalactosaminyltransferases-3 expression independently predicts high-grade tumour and poor prognosis in patients with RCC, and may offer a therapeutic target against RCC.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma de Células Renais/patologia , Neoplasias Renais/patologia , N-Acetilgalactosaminiltransferases/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/genética , Carcinoma de Células Renais/enzimologia , Linhagem Celular Tumoral , Estudos de Coortes , Feminino , Humanos , Neoplasias Renais/enzimologia , Masculino , Pessoa de Meia-Idade , N-Acetilgalactosaminiltransferases/genética , Gradação de Tumores , Prognóstico , Estudos Retrospectivos , Polipeptídeo N-Acetilgalactosaminiltransferase
9.
Hum Exp Toxicol ; 32(9): 904-13, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23444337

RESUMO

To determine the no-observed-adverse-effect level (NOAEL) of exposure and target organs of neem oil for establishing safety criteria for human exposure, the subchronic toxicity study with neem oil in mice was evaluated. The mice (10 per sex for each dose) was orally administered with neem oil with the doses of 0 (to serve as a control), 177, 533 and 1600 mg/kg/day for 90 days. After the treatment period, observation of reversibility or persistence of any toxic effects, mice were continuously fed without treatment for the following 30 days. During the two test periods, the serum biochemistry, organ weight and histopathology were examined. The results showed that the serum biochemistry and organ coefficient in experimental groups had no statistical difference compared with those of the control group. At the 90th day, the histopathological examinations showed that the 1600 mg/kg/day dose of neem oil had varying degrees of damage on each organ except heart, uterus and ovarian. After 30-day recovery, the degree of lesions to the tissues was lessened or even restored. The NOAEL of neem oil was 177 mg/kg/day for mice and the target organs of neem oil were determined to be testicle, liver and kidneys.


Assuntos
Azadirachta/química , Glicerídeos/toxicidade , Terpenos/toxicidade , Testes de Toxicidade Subcrônica , Administração Oral , Animais , Relação Dose-Resposta a Droga , Ingestão de Alimentos/efeitos dos fármacos , Feminino , Glicerídeos/isolamento & purificação , Masculino , Camundongos , Camundongos Endogâmicos , Nível de Efeito Adverso não Observado , Especificidade de Órgãos , Plantas Medicinais , Sementes/química , Terpenos/isolamento & purificação
11.
Transplant Proc ; 43(5): 1980-4, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21693311

RESUMO

OBJECTIVE: To analyze rejection and antiapoptotic effects of heme oxygenase-1 (HO-1) in kidney transplantations, to investigate the protective effects of endogenous HO-1 induced by hemin on acute rat kidney allograft rejection. METHODS: We selected 27 Brown-Norway rats and 27 male Lewis rats as donors and recipients, respectively, randomly dividing them into three groups: kidney transplantation alone, hemin treatment group, and cyclosporine (CsA) group (n = 18). Six recipient rats were harvested on the first, fifth, or seventh days after operation among each group to examine histopathologic changes in renal tissue, HO-1 protein expression, and acute rejection as well as to measure serum creatinine values. RESULTS: HO-1 expression in both the kidney transplantation model group and the hemin-induced groups were higher compared with the CsA group (P < .05-.01). The expression increased with the aggravation of rejection; the expression in the CsA group also increased after transplantation but was obviously lower than that of the hemin-induced group (P < .01). The rejection process was relatively mild as indenset by histopathologic examination. The serum creatinine levels among the hemin-induced group were lower compared to the kidney transplantation control group (P < .05), but higher compared to the CsA group (P < .05). CONCLUSION: HO-1 provided protection of allografts against rejection in rats, but such effects were poorer than those achieved using potent immunosuppressive agents like CsA.


Assuntos
Rejeição de Enxerto , Heme Oxigenase (Desciclizante)/metabolismo , Transplante de Rim , Animais , Feminino , Imuno-Histoquímica , Masculino , Ratos , Ratos Endogâmicos Lew
12.
Neth Heart J ; 19(9): 379-85, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21547582

RESUMO

BACKGROUND: Late-onset proximal coronary artery stenosis caused by preceding percutaneous catheterisation procedures remains under-surveyed. METHODS: From 1993, all patients undergoing percutaneous coronary procedures and a second session within 3 years were included except those ever treated by coronary bypass surgery or chest radiotherapy during this 3-year period. Emergence of a new lesion or worsening of an initially insignificant lesion to >50% of diameter stenosis at the never-treated ostial/proximal coronary segment on the follow-up angiogram was defined as late coronary stenosis caused by the previous catheterisation procedure and was analysed. RESULTS: From January 1993 to December 2005, 3240 patients who underwent 5025 procedures met the inclusion criteria. Of them, 23 patients experienced an event of late coronary artery stenosis (overall incidence 0.46%), and interventional procedures, specifically shaped catheters (Voda, XB, Amplatz Left) and atherosclerosis vulnerability correlated with risks of adverse events. Most of these events could be managed by contemporary medical, interventional, or surgical strategies, yet hazards of mortality and long-term restenosis still existed from this catheter-induced complication. CONCLUSIONS: Percutaneous catheterisation procedures could be complicated by late proximal coronary artery stenosis. Thus, when conducting these procedures, operators should select and manipulate catheters with caution, especially in patients with susceptible clinical characteristics.

13.
Br J Cancer ; 104(12): 1882-9, 2011 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-21587259

RESUMO

BACKGROUND: The family of polypeptide N-acetylgalactosaminyltransferases (GalNAc-Ts) is responsible for the altered glycosylation in cancer. The purpose of our study was to investigate the clinical significance of two isoforms, GalNAc-T6 and -T3, and their correlation with the prognosis of pancreatic cancer. METHODS: Immunohistochemistry was used to analyse GalNAc-T6 and -T3 expressions in 70 clinicopathologically characterised pancreatic cancer cases. RESULTS: Positive expressions of GalNAc-T6 and -T3 were immunohistochemically identified in 51% (36 of 70) and in 77% (54 of 70) of patients, respectively. A close relationship was noted between GalNAc-T6 positive expression and pathological well/moderate differentiated type (P=0.001), small tumour size (P=0.044), absence of vascular invasion (P=0.009), and low stage of the American Joint Committee on Cancer systems (P=0.043). The expression of GalNAc-T3 significantly correlated with good differentiation (P=0.001), but not with other clinicopathologic features. Furthermore, univariate and multivariate analyses revealed that GalNAc-T6 expression was an independent prognosis indicator for the disease, whereas GalNAc-T3 expression had no impact on clinical outcome, even though 33 of 36 GalNAc-T6-positive cases also had a positive expression of GalNAc-T3 (P=0.001, r=0.356). CONCLUSION: Both GalNAc-T6 and -T3 expressions correlated significantly with tumour differentiation, whereas only GalNAc-T6 expression predicted prognosis in pancreatic cancer.


Assuntos
N-Acetilgalactosaminiltransferases/análise , Neoplasias Pancreáticas/mortalidade , Adulto , Idoso , Linhagem Celular Tumoral , Feminino , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/enzimologia , Neoplasias Pancreáticas/patologia , Prognóstico , Polipeptídeo N-Acetilgalactosaminiltransferase
14.
Eur J Neurol ; 18(8): 1060-6, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21244583

RESUMO

BACKGROUND AND PURPOSE: Animal experiments indicate that the cerebral thrombin is associated with secondary brain damage after intracerebral hemorrhage (ICH). This study was aimed to investigate the concentrations of thrombin-antithrombin complex (TAT) in hematoma fluid and plasma of the patients with ICH after surgery and analyze the correlation between TAT complex levels and severity of ICH. METHODS: Sixty patients with ICH were enrolled. Craniotomy for removal of intracranial blood clot was performed within 24h after ICH. Hematoma fluid and plasma were collected on postoperative days 1, 2, and 4. The plasma obtained from healthy subjects and cerebrospinal fluid from patients without cerebrovascular diseases served as controls, respectively. Enzyme-linked immunosorbent assay was used to determine the concentrations of TAT complex in the patients and controls. RESULTS: TAT complex concentrations in both postoperative plasma and hematoma fluid of patients with ICH were significantly higher than those of the controls (P<0.01). In patients with ICH, hematoma fluid had a higher TAT complex level than plasma (P<0.01). The preoperative hemorrhage volume and postoperative TAT complex levels in plasma and hematoma fluid correlated positively with National Institutes of Health stroke scale and negatively with Glasgow coma score (P<0.01). CONCLUSION: This study indicates that TAT complex levels of plasma and hematoma fluid correlate positively with the severity of ICH. Determination of the plasma TAT complex concentration is helpful for the evaluation of the severity of post-ICH brain injury.


Assuntos
Hematoma/sangue , Hemorragia Intracraniana Hipertensiva/sangue , Peptídeo Hidrolases/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Antitrombina III/líquido cefalorraquidiano , Feminino , Hematoma/cirurgia , Humanos , Hemorragia Intracraniana Hipertensiva/cirurgia , Hipertensão Intracraniana/sangue , Hipertensão Intracraniana/diagnóstico , Masculino , Pessoa de Meia-Idade , Peptídeo Hidrolases/líquido cefalorraquidiano , Valor Preditivo dos Testes , Prognóstico
16.
J Eur Acad Dermatol Venereol ; 25(4): 429-35, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20666878

RESUMO

BACKGROUND: Vitiligo can adversely affect the quality of life and sexual relationships of patients. Combination of the DLQI with the generic SF-36 and ENRICH may give further insight in the evaluation of the burden in vitiligo patients. OBJECTIVE: We sought to assess the health-related quality of life (HRQoL) and marital quality of Chinese vitiligo patients and to identify the relevant clinical and socio-demographic determinants. METHODS: A total of 101 vitiligo patients and 126 healthy controls completed the questionnaires. HRQoL was measured using DLQI and SF-36, and marital quality was measured using the ENRICH marital inventory. RESULTS: Patients with vitiligo experienced significantly impaired health-related quality of life and unstable marital relationships. Gender, distribution pattern of vitiligo and disease severity were independent predictors of DLQI, SF-36 and ENRICH in this cohort. CONCLUSIONS: Vitiligo is associated with impairment of HRQoL and marital quality among Chinese patients. Alongside the medical interventions, the psychological and sociocultural assessment and intervention should be an essential part of the management of these cases.


Assuntos
Casamento , Vitiligo/fisiopatologia , Adulto , Estudos de Casos e Controles , China , Feminino , Humanos , Masculino , Inquéritos e Questionários , Vitiligo/psicologia
17.
Phys Rev Lett ; 104(13): 137205, 2010 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-20481911

RESUMO

We have studied field- and current-driven domain-wall (DW) creep motion in a perpendicularly magnetized Co/Pt multilayer wire by real-time Kerr microscopy. The application of a dc current of density of approximately < 10(7) A/cm2 assisted only the DW creeping under field in the same direction as the electron flow, a signature of spin-transfer torque effects. We develop a model dealing with both bidirectional spin-transfer effects and Joule heating, with the same dynamical exponent mu=1/4 for both field- and current-driven creep, and use it to quantify the spin-transfer efficiency as 3.6+/-0.6 Oe cm2/MA in our wires, confirming the significant nonadiabatic contribution to the spin torque.

18.
Acta Anaesthesiol Scand ; 54(5): 580-8, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-19930243

RESUMO

BACKGROUND: Whether and how chronic advanced aortic regurgitation (AR) impacts the perioperative outcome of noncardiac surgery remains unclear. METHODS: From November 1999 to December 2006, all patients undergoing noncardiac operations and ever examined by echocardiography within the last 6 months were screened. Those with chronic moderate-severe or severe AR were enrolled, provided they were not already trachea-intubated or aortic valve operated, and the surgery was not performed under local anesthesia. Case-matched subjects without significant AR served as controls. The perioperative outcomes of these patients were analyzed, and independent prognostic correlates were investigated by multivariate logistic regression analysis. RESULTS: A total of 167 patients (male 131, mean age of 75 years) complying with the enrollment criteria were studied. Compared with the other 167 case-matched control peers, patients with advanced AR risked potential hazards of serious hemodynamic instability (0.6%) and circulatory collapse (1.2%) during surgery despite the similar incidence of overall cardiac adverse events, and were further distressed with more cardiopulmonary complications (16.2% vs. 5.4%, P=0.003) and in-hospital deaths (9% vs. 1.8%, P=0.008) post-operatively. Multivariate regression analysis confirmed the correlation of advanced AR with perioperative mortality, and identified depressed left ventricular function, renal dysfunction, high surgical risk, and lack of cardiac medication as predictors of in-hospital death. CONCLUSION: Chronic advanced AR complicates the perioperative outcome of noncardiac surgery as reflected by frequent cardiopulmonary morbidities and in-hospital deaths, especially when coexisting with specified high-risk clinical and surgical characteristics.


Assuntos
Insuficiência da Valva Aórtica/complicações , Choque/prevenção & controle , Procedimentos Cirúrgicos Operatórios , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Doença Crônica , Ecocardiografia Doppler , Feminino , Hemodinâmica , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Choque/etiologia , Procedimentos Cirúrgicos Operatórios/mortalidade , Resultado do Tratamento , Adulto Jovem
19.
Br J Pharmacol ; 156(1): 48-61, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19133991

RESUMO

BACKGROUND AND PURPOSE: Doxorubicin evokes oxidative stress and precipitates cell apoptosis in testicular tissues. The aim of this study was to investigate whether the Ginkgo biloba extract 761 (EGb), a widely used herbal medicine with potent anti-oxidant and anti-apoptotic properties, could protect testes from such doxorubicin injury. EXPERIMENTAL APPROACH: Sprague-Dawley male rats (8 weeks old) were given vehicle, doxorubicin alone (3 mg kg(-1) every 2 days for three doses), EGb alone (5 mg kg(-1) every 2 days for three doses), or EGb followed by doxorubicin (each dose administered 1 day after EGb). At 7 days after the first drug treatment oxidative and apoptotic testicular toxicity was evaluated by biochemical, histological and flow cytometric analyses. KEY RESULTS: Compared with controls, testes from doxorubicin-treated rats displayed impaired spermatogenesis, depleted haploid germ cell subpopulations, increased lipid peroxidation products (malondialdehyde), depressed antioxidant enzyme activities (superoxide dismutase, glutathione peroxidase and glutathione), reduced antioxidant enzyme expression (superoxide dismutase) and elevated apoptotic indexes (pro-apoptotic modulation of Bcl-2 family proteins, intensification of p53 and Apaf-1, release of mitochondrial cytochrome c, activation of caspase-3 and increase of terminal deoxynucleotidyl transferase nick-end labelling/sub-haploid cells), while EGb pretreatment effectively alleviated all of these doxorubicin-induced abnormalities in testes. CONCLUSIONS AND IMPLICATIONS: These results demonstrate that EGb protected against the oxidative and apoptotic actions of doxorubicin on testes. EGb may be a promising adjuvant therapy medicine, potentially ameliorating testicular toxicity of this anti-neoplastic agent in clinical practice.


Assuntos
Antibióticos Antineoplásicos/efeitos adversos , Antioxidantes/farmacologia , Apoptose/efeitos dos fármacos , Doxorrubicina/efeitos adversos , Estresse Oxidativo , Extratos Vegetais/farmacologia , Testículo/efeitos dos fármacos , Proteína Supressora de Tumor p53/metabolismo , Animais , Fator Apoptótico 1 Ativador de Proteases/metabolismo , Caspase 3/metabolismo , Citocromos c/metabolismo , Modelos Animais de Doenças , Ginkgo biloba , Glutationa/metabolismo , Glutationa Peroxidase/metabolismo , Masculino , Malondialdeído/metabolismo , Mitocôndrias/fisiologia , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Ratos , Ratos Sprague-Dawley , Espermatogênese/efeitos dos fármacos , Superóxido Dismutase/metabolismo , Testículo/metabolismo , Testículo/patologia
20.
Scand J Immunol ; 66(6): 619-27, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18021362

RESUMO

The immune stimulation properties of CpG-oligonucleotides (CpG-ODN) containing a central unmethylated CpG motif could be useful for vaccination against parasite infection. However, the high cost of synthetic CpG-ODN has limited its use in veterinary vaccines. In this study, we investigated whether genomic DNA derived from Mycobacterium bovis bacillus Calmette-Guerin (BCG-DNA) could be used as an effective adjuvant to enhance the immunogenicity and the protective capacity of recombinant cC1 antigen (rcC1) against pig cysticercosis. Pigs were vaccinated with rcC1 plus CpG-containing DNA adjuvants (BCG-DNA or CpG-ODN) or rcC1 alone. Immunization with rcC1 alone induced a Th1-biased response, whereas coadministration of rcC1 with BCG-DNA or CpG-ODN increased levels of IgG2, IFN-gamma, percentage of CD8+ and specific proliferation of peripheral blood mononuclear cells. Four weeks after the last immunization, pigs were infected with Taenia solium eggs. A high level of protection (81%) was induced by rcC1 immunization that was not significantly increased by the CpG-containing DNA. These data indicate that coadministration of rcC1 plus BCG-DNA or CpG-ODN significantly enhanced Th1 response but did not improve the level of the protection induced.


Assuntos
Adjuvantes Imunológicos , Anticorpos Anti-Helmínticos/sangue , Vacina BCG/imunologia , Cisticercose/veterinária , Oligodesoxirribonucleotídeos/imunologia , Doenças dos Suínos/prevenção & controle , Taenia solium/imunologia , Animais , Antígenos de Helmintos/imunologia , Vacina BCG/administração & dosagem , Vacina BCG/farmacologia , Cisticercose/prevenção & controle , Imunização/veterinária , Imunoglobulina G/sangue , Ativação Linfocitária , Oligodesoxirribonucleotídeos/administração & dosagem , Oligodesoxirribonucleotídeos/farmacologia , Suínos/parasitologia , Células Th1/efeitos dos fármacos , Vacinas de DNA/administração & dosagem , Vacinas de DNA/imunologia
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