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1.
Mol Med Rep ; 23(1)2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33236143

RESUMO

Macrophage­capping protein (CapG) is a newly characterized oncogene involved in several types of cancer. However, the expression patterns and biological mechanisms of CapG in clear cell renal cell carcinoma (ccRCC) are unclear. The present study aimed to investigate the roles of CapG in the prognosis, proliferation and metastasis of ccRCC. In the present study, the expression of CapG was analyzed by western blotting in 24 paired ccRCC and adjacent normal tissue samples. Another 152 tissue samples from 152 patients with ccRCC were examined by immunohistochemistry. Compared with normal tissue, CapG expression was significantly increased in ccRCC tissue, and high CapG expression was associated with advanced tumor stage, histological grade, lymph node metastasis, and poor overall survival. Moreover, CapG was an independent predictor of survival. Lentivirus­mediated CapG knockdown significantly inhibited 786­O cell proliferation, migration, and invasion, induced cell cycle arrest at the G2/M phase, and increased apoptosis in vitro. Microarray analysis indicated that RAC, CDC42 and ERK/MAPK signaling were disrupted by CapG knockdown in 786­O cells. In conclusion, the present findings indicate that CapG plays an oncogenic role in ccRCC and may represent a potential therapeutic target for this disease.


Assuntos
Carcinoma de Células Renais/metabolismo , Neoplasias Renais/metabolismo , Proteínas dos Microfilamentos/metabolismo , Proteínas Nucleares/metabolismo , Proteínas Oncogênicas/metabolismo , Carcinoma de Células Renais/genética , Carcinoma de Células Renais/mortalidade , Carcinoma de Células Renais/patologia , Linhagem Celular Tumoral , Movimento Celular , Pontos de Checagem da Fase G2 do Ciclo Celular , Técnicas de Silenciamento de Genes , Humanos , Neoplasias Renais/genética , Neoplasias Renais/mortalidade , Neoplasias Renais/patologia , Pontos de Checagem da Fase M do Ciclo Celular , Sistema de Sinalização das MAP Quinases , Proteínas dos Microfilamentos/genética , Proteínas Nucleares/genética , Proteínas Oncogênicas/genética
2.
BMC Med Inform Decis Mak ; 20(1): 337, 2020 12 14.
Artigo em Inglês | MEDLINE | ID: mdl-33317510

RESUMO

BACKGROUND: Different from adult clinical stage I (CS1) testicular cancer, surveillance has been recommended for CS1 pediatric testicular cancer. However, among high-risk children, more than 50% suffer a relapse and progression during surveillance, and adjuvant chemotherapy needs to be administered. Risk-adapted treatment might reduce chemotherapy exposure among these children. METHODS: A decision model was designed and calculated using TreeAge Pro 2011 software. Clinical utilities such as the relapse rates of different groups during surveillance or after chemotherapy were collected from the literature. A survey of urologists was conducted to evaluate the toxicity of first-line and second-line chemotherapy. Using the decision analysis model, chemotherapy exposure of the risk-adapted treatment and surveillance strategies were compared based on this series of clinical utilities. One-way and two-way tests were applied to check the feasibility. RESULTS: In the base case decision analysis of CS1 pediatric testicular cancer, risk-adapted treatment resulted in a lower exposure to chemotherapy than surveillance (average: 0.7965 cycles verse 1.3419 cycles). The sensitivity analysis demonstrated that when the relapse rate after primary chemotherapy was ≤ 0.10 and the relapse rate of the high-risk group was ≥ 0.40, risk-adapted treatment would result in a lower exposure to chemotherapy, without any association with the proportion of low-risk patients, the relapse rate of the low-risk group, the relapse rate after salvage chemotherapy or the toxicity utility of second-line chemotherapy compared to first-line chemotherapy. CONCLUSIONS: Based on the decision analysis, risk-adapted treatment might decrease chemotherapy exposure for these high-risk patients, and an evaluation after orchiectomy was critical to this process. Additional clinical studies are needed to validate this statement.


Assuntos
Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante/métodos , Neoplasias Embrionárias de Células Germinativas/tratamento farmacológico , Neoplasias Testiculares/tratamento farmacológico , Criança , Técnicas de Apoio para a Decisão , Humanos , Masculino , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Neoplasias Embrionárias de Células Germinativas/patologia , Neoplasias Embrionárias de Células Germinativas/cirurgia , Orquiectomia/efeitos adversos , Orquiectomia/métodos , Neoplasias Testiculares/patologia , Neoplasias Testiculares/cirurgia , Resultado do Tratamento
3.
Asia Pac Psychiatry ; 11(4): e12368, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31353828

RESUMO

INTRODUCTION: Mindfulness-based cognitive therapy (MBCT) may be effective for generalized anxiety disorder (GAD); however, the neural mechanism is poorly understood. In this study, we examined the potential neural mechanisms through which MBCT may reduce anxiety in patients with mild-to-moderate GAD. METHODS: Eight weekly group MBCT sessions (2 h each) were conducted with 32 GAD patients. Resting-state functional magnetic resonance imaging (fMRI) was used, along with clinical and mindfulness profiles. A regional homogeneity (ReHo) approach was applied, and resting-state functional connectivity in the default mode network (DMN) using the posterior cingulate cortex (PCC) seed was examined. RESULTS: MBCT reduced the anxiety and increased the mindfulness abilities of patients. After MBCT, patients had reduced ReHo in broad regions of the limbic system, along with increased DMN functional connectivity in the anterior cingulate cortex (ACC) and bilateral insula. Overlapping regions of reduced ReHo and increased DMN functional connectivity were observed in the mid-cingulate cortex (MCC) and bilateral insula. The increased PCC-ACC and PCC-insula functional connectivity following MBCT were related to anxiety improvements, suggesting a potential therapeutic mechanism for mindfulness-based therapies. DISCUSSION: Group MBCT treatment appears to have effectively reduced anxiety symptoms in patients with mild-to-moderate GAD. Activation and functional connectivity appeared significantly different across some limbic regions after MBCT treatment. The salience network showed reduced ReHo and increased connectivity to the PCC. The DMN functional connectivity of the MCC may indicate reduced anxiety and improved mindfulness in GAD patients.


Assuntos
Transtornos de Ansiedade/diagnóstico por imagem , Encéfalo/diagnóstico por imagem , Terapia Cognitivo-Comportamental/métodos , Rede Nervosa/diagnóstico por imagem , Descanso/fisiologia , Adulto , Transtornos de Ansiedade/psicologia , Transtornos de Ansiedade/terapia , Eletroencefalografia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Atenção Plena , Resultado do Tratamento
4.
Nan Fang Yi Ke Da Xue Xue Bao ; 37(11): 1517-1522, 2017 Nov 20.
Artigo em Chinês | MEDLINE | ID: mdl-29180334

RESUMO

OBJECTIVE: To identify specific protein markers for renal cell carcinoma detection and diagnosis, as well as develop new potential therapeutic targets of the disease. METHODS: We used two-dimensional difference in-gel electrophoresis (2-D DIGE) technique conjunction with mass spectrometry (MS) for the identification of significant differentially expressed proteins between 15cases of paired clear cell renal cell carcinoma (ccRCC) and adjacent normal renal tissues. The protein spots were considered as differentially expressed if a 1.5-fold altered expression level was observed (Student's t test, P value<0.05). RESULTS: Of the 27 differentially expressed protein spots, 26 proteins were successfully identified. 11 proteins up-regulated in renal cell carcinoma,15 proteins down-regulated. Among them Short/branched chain specific acyl-CoA dehydrogenase, mitochondrial (ACDSB), Aldose 1-epimerase (GALM), Peroxiredoxin-4 (PRDX4), Macrophage-capping protein (CAPG), Beta-defensin 107 (D107A), Microfibril-associated glycoprotein 4 (MFAP4) were first time screening as new differential expressed proteins by protomic study in renal cell carcinoma. CONCLUSIONS: 2-D DIGE is a useful technique for screening and analysis differential expressed proteins in renal cell carcinoma. These new differently expressed proteins may be useful for development new molecular markers for the tumor.


Assuntos
Carcinoma de Células Renais/metabolismo , Neoplasias Renais/metabolismo , Proteoma/metabolismo , Biomarcadores Tumorais/metabolismo , Proteínas de Transporte , Eletroforese em Gel Bidimensional , Proteínas da Matriz Extracelular , Glicoproteínas , Humanos , Proteínas dos Microfilamentos , Proteínas Nucleares , Peroxirredoxinas , Proteômica , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz
5.
Int Braz J Urol ; 40(5): 690-6, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25498281

RESUMO

PURPOSE: We investigated the characteristics and management of patients with intravenous misplacement of a nephrostomy tube. MATERIALS AND METHODS: Between July 2007 and July 2013, 4148 patients with urolithiasis underwent percutaneous nephrolithotomy (PCNL) in our hospital. Intravenous misplacement of a nephrostomy tube occurred in two of these patients. Another patient with intravenous misplacement of a nephrostomy tube, who underwent PCNL in another hospital, was transferred to our hospital. The data of the three patients were retrospectively analyzed. RESULTS: The incidence of intravenous misplacement of a nephrostomy tube following PCNL was 0.5% (2/4148) at our hospital. A solitary kidney was present in one of the three patients. The tip of tube was located into the inferior vena cava (IVC) in two patients and into the renal vein in one patient. All three patients were successfully managed with strict bed rest, intravenous antibiotics and one-step (one patient) or two-step (two patients) tube withdrawal under close monitoring. None of the patients underwent antithrombotic therapy. The original operations were performed successfully under close observation in two patients and changed to another operation in one patient. All patients were discharged uneventfully. CONCLUSIONS: The incidence of intravenous misplacement of a nephrostomy tube following PCNL is 0.5% at our hospital. Intravenous nephrostomy tube misplacement is an uncommon complication of PCNL. A solitary kidney may render patients susceptible to this complication. Most patients may be managed conservatively with strict bed rest, intravenous antibiotics and one-step or two-step tube withdrawal under close monitoring.


Assuntos
Litotripsia/efeitos adversos , Nefrostomia Percutânea/efeitos adversos , Complicações Pós-Operatórias/diagnóstico , Urolitíase/cirurgia , Adulto , Feminino , Humanos , Litotripsia/instrumentação , Masculino , Pessoa de Meia-Idade , Nefrostomia Percutânea/instrumentação , Complicações Pós-Operatórias/terapia , Veias Renais , Estudos Retrospectivos , Fatores de Risco , Tomografia Computadorizada por Raios X , Cateteres Urinários/efeitos adversos , Urografia , Veia Cava Inferior
6.
Int. braz. j. urol ; 40(5): 690-696, 12/2014. tab, graf
Artigo em Inglês | LILACS | ID: lil-731129

RESUMO

Purpose We investigated the characteristics and management of patients with intravenous misplacement of a nephrostomy tube. Materials and Methods Between July 2007 and July 2013, 4148 patients with urolithiasis underwent percutaneous nephrolithotomy (PCNL) in our hospital. Intravenous misplacement of a nephrostomy tube occurred in two of these patients. Another patient with intravenous misplacement of a nephrostomy tube, who underwent PCNL in another hospital, was transferred to our hospital. The data of the three patients were retrospectively analyzed. Results The incidence of intravenous misplacement of a nephrostomy tube following PCNL was 0.5% (2/4148) at our hospital. A solitary kidney was present in one of the three patients. The tip of tube was located into the inferior vena cava (IVC) in two patients and into the renal vein in one patient. All three patients were successfully managed with strict bed rest, intravenous antibiotics and one-step (one patient) or two-step (two patients) tube withdrawal under close monitoring. None of the patients underwent antithrombotic therapy. The original operations were performed successfully under close observation in two patients and changed to another operation in one patient. All patients were discharged uneventfully. Conclusions The incidence of intravenous misplacement of a nephrostomy tube following PCNL is 0.5% at our hospital. Intravenous nephrostomy tube misplacement is an uncommon complication of PCNL. A solitary kidney may render patients susceptible to this complication. Most patients may be managed conservatively with strict bed rest, intravenous antibiotics and one-step or two-step tube withdrawal under close monitoring. .


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Litotripsia/efeitos adversos , Nefrostomia Percutânea/efeitos adversos , Complicações Pós-Operatórias/diagnóstico , Urolitíase/cirurgia , Litotripsia/instrumentação , Nefrostomia Percutânea/instrumentação , Complicações Pós-Operatórias/terapia , Veias Renais , Estudos Retrospectivos , Fatores de Risco , Tomografia Computadorizada por Raios X , Urografia , Cateteres Urinários/efeitos adversos , Veia Cava Inferior
7.
PLoS One ; 8(6): e64090, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23785397

RESUMO

BACKGROUND: Evidence shows that STON2 gene is associated with synaptic function and schizophrenia. This study aims to explore the relationship between two functional polymorphisms (Ser307Pro and Ala851Ser) of STON2 gene and the cortical surface area in first-episode treatment-naïve patients with schizophrenia and healthy controls. METHODOLOGY/PRINCIPAL FINDINGS: Magnetic resonance imaging of the whole cortical surface area, which was computed by an automated surface-based technique (FreeSurfer), was obtained from 74 first-episode treatment-naïve patients with schizophrenia and 55 healthy controls. Multiple regression analysis was performed to investigate the effect of genotype subgroups on the cortical surface area. A significant genotype-by-diagnosis effect on the cortical surface area was observed. Pro-allele carriers of Ser307Pro polymorphism had larger right inferior temporal surface area than Ser/Ser carriers in the patients with schizophrenia; however, no significant difference was found in the same area in the healthy controls. The Ala851Ser polymorphism of STON2 gene was not significantly associated with the cortical surface area in patients with schizophrenia and healthy controls. CONCLUSIONS/SIGNIFICANCE: The present study demonstrated that the functional variant of the STON2 gene could alter cortical surface area on the right inferior temporal and contribute to the pathogenesis of schizophrenia.


Assuntos
Proteínas Adaptadoras de Transporte Vesicular/genética , Córtex Cerebral/metabolismo , Córtex Cerebral/patologia , Polimorfismo Genético , Esquizofrenia/genética , Esquizofrenia/patologia , Adolescente , Adulto , Mapeamento Encefálico , Estudos de Casos e Controles , Feminino , Frequência do Gene , Predisposição Genética para Doença , Genótipo , Humanos , Imageamento por Ressonância Magnética , Masculino , Lobo Temporal/patologia , Adulto Jovem
8.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 29(3): 255-9, 2012 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-22678782

RESUMO

OBJECTIVE: To assess the association between gene polymorphisms and memory function through a genome-wide association study (GWAS) of schizophrenia and control group. Memory cognition was used as a quantitative trait (QT). METHODS: Ninty-eight subjects with chronic schizophrenia and 60 matched controls were genotyped with HumanHap660 Bead Array. The results were correlated with quantitative traits including memory and memory delay. RESULTS: Five candidate genes, including RASGRF2 (rs401758, P = 8.03×10(-5)), PLCG2 (rs7185362, P= 4.54×10(-5)), LMO1 (rs484161, P=9.80×10(-7), CSMD1 (rs2469383, P= 2.77×10(-6)) and PRKG1 (rs7898516, P=6.94×10(-5)) were associated with memory cognition deficits. CONCLUSION: Using memory cognition as a quantitative trait, this Genome- wide association study has identified 5 susceptibility loci. With their association with nervous system development, neuronal growth, axon guidance and plasticity, brain development, above loci may play a role in the development of memory dysfunction in schizophrenia.


Assuntos
Locos de Características Quantitativas , Esquizofrenia/genética , Adulto , Feminino , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla/métodos , Humanos , Masculino , Memória/fisiologia , Polimorfismo de Nucleotídeo Único , Adulto Jovem
9.
Early Interv Psychiatry ; 6(2): 166-75, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-21951785

RESUMO

AIM: This study aimed to investigate the changes of the metabolites in the white matter of frontal lobes and hippocampus in schizophrenia by using proton magnetic resonance spectroscopy ((1) H-MRS). METHODS: Sixty-three first-episode treatment-naïve schizophrenia (FES) patients and 63 age-, gender- and education level-matched healthy controls were recruited. The relative levels of metabolites including N-acetylaspartate (NAA), choline-containing compounds (Cho), (Cr) and myo-inositol (MI) were detected with (1) H-MRS, and the laterality index (Li) was calculated. The severity of symptoms was assessed using the Positive and Negative Syndrome Scale. RESULTS: Compared with controls, FES patients did not show significant differences in all metabolites. The severity of positive symptoms was negatively correlated with the NAA/Cho in the white matter of the left frontal lobe and positively correlated with the Cho/Cr in the right white matter of frontal lobes. A negative correlation was observed between the severity of negative symptoms and the NAA/Cr in the white matter of bilateral frontal lobes. No difference was shown in the Li of metabolites between FES patients and controls. CONCLUSIONS: The metabolites such as NAA, Cho and MI in white matter of frontal lobes and hippocampus were not significantly altered in FES patients. The lower axonal integrity/number (NAA concentration) may be associated with more severe negative symptoms, and dysmetabolism in process of myelination in the white matter of frontal lobes associated with more severe positive symptoms.


Assuntos
Lobo Frontal/metabolismo , Hipocampo/metabolismo , Espectroscopia de Ressonância Magnética/estatística & dados numéricos , Fibras Nervosas Mielinizadas/metabolismo , Esquizofrenia/metabolismo , Adulto , Ácido Aspártico/análogos & derivados , Ácido Aspártico/metabolismo , Biomarcadores/metabolismo , Estudos de Casos e Controles , Colina/análogos & derivados , Colina/metabolismo , Creatina/metabolismo , Dominância Cerebral , Feminino , Humanos , Inositol/metabolismo , Espectroscopia de Ressonância Magnética/métodos , Masculino , Prótons , Esquizofrenia/diagnóstico , Índice de Gravidade de Doença
10.
Nan Fang Yi Ke Da Xue Xue Bao ; 31(5): 749-54, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21602118

RESUMO

OBJECTIVE: To report our data of patients with clinical stage T(1-3)N(1-2)M(0) renal cell carcinoma (RCC) and explore the biological behavior of this malignancy. METHODS: A total of 531 patients with no distant metastatic RCC underwent open radical nephrectomy at our institution between 1988 and 2008, among whom 42 patients with histological nodal metastases had successful surgical tumor resection. The clinical data and outcomes of the 42 patients were analyzed. RESULTS: Of those 42 patients, 19.0% had T1, 21.4% had T2, and 59.5% had T3 stage tumors; 42.9% had N1 and 57.1% had N2 stage tumors. Tumor recurred in 30 (71.4%) patients after the surgery, and death occurred in 26 (61.9%) cases at the last follow-up; among the recurrent cases, 83.3% (25/30) had multiple metastases at the initial recurrence. The median cancer-specific survival (CSS) and disease-free survival (DFS) was 23 and 11 months in these cases, respectively. Multivariate analysis demonstrated that Fuhrman grade (P=0.005), N stage (P=0.014) and T stage (P=0.037) were the independent predictors of CSS; Eastern Cooperative Oncology Group (ECOG) performance status (PS) (P=0.002), tumor size (P=0.007), Fuhrman grade (P=0.009) and N stage (P=0.019) were the independent predictors of DFS. CONCLUSION: Patients with T(1-3)N(1-2)M(0) RCC have poor prognosis. N stage is an independent predictor of both CSS and DFS, suggesting that extended lymph node dissection should be performed when suspicious enlarged nodal disease is found during surgery.


Assuntos
Carcinoma de Células Renais/patologia , Neoplasias Renais/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Renais/diagnóstico , Criança , Feminino , Humanos , Neoplasias Renais/diagnóstico , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Prognóstico , Adulto Jovem
11.
Nan Fang Yi Ke Da Xue Xue Bao ; 30(12): 2765-7, 2010 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-21177201

RESUMO

OBJECTIVE: To study the clinicopathological characteristics of synchronous squamous cell carcinoma (SCC) of the renal pelvis and SCC of the ureter. METHODS: The clinical data of two cases of synchronous SCC of the renal pelvis and SCC of the ureter were retrospectively reviewed and analyzed. In case 1, a 68-year-old man with hematuria for a month, imaging modalities revealed a right renal pelvis tumor and a right distal ureter tumor. The patient underwent nephroureterectomy and excision of the bladder cuff. Case 2, a 60-year-old man with the complaint of lower abdominal pain and left flank pain for a month, was diagnosed as left distal ureteral stone in another hospital. Ureterolithotomy was performed and a ureteral tumor was found at the lower site of the stone intraoperatively. The pathological report demonstrated SCC, and the patient was transferred to our hospital for further treatment. We found a left renal mass invading the left hemicolon during surgery, and nephroureterectomy was performed with a bladder cuff excision, left hemicolon resection, and also complete lymph node dissection. Neither of patients received adjuvant radiotherapy/chemotherapy. RESULTS: Moderately differentiated SCC was reported in both of renal pelvis and ureter in case 1 and the tumor invaded the subepithelial connective tissue in the renal pelvis and superficial muscle in the ureter. In case 2, moderately differentiated SCC of the left renal pelvis with colon metastasis and poorly differentiated SCC of the ureter was reported with two retroperitoneal lymph node metastases. The two patients died from tumor recurrence and metastasis 5 and 6 months after the surgery, respectively. CONCLUSION: Synchronous SCC of the renal pelvis and SCC of the ureter are rare and has high likeliness of early recurrence and metastasis, often with poor prognosis.


Assuntos
Carcinoma de Células Escamosas/complicações , Neoplasias Renais/complicações , Pelve Renal , Neoplasias Ureterais/complicações , Idoso , Carcinoma de Células Escamosas/patologia , Humanos , Neoplasias Renais/patologia , Pelve Renal/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias Ureterais/patologia
12.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 41(1): 5-9, 2010 Jan.
Artigo em Chinês | MEDLINE | ID: mdl-20369460

RESUMO

OBJECTIVE: To assess volumetric abnormalities of grey matter in the brains of patients with paranoid schizophrenia and bipolar disorder (mania). METHODS: 3D T1 weighted images were acquired by magnetic resonance imaging from 20 patients with paranoid schizophrenia, 20 patients with bipolar disorder (mania) and 20 control subjects. Regional deviation in gray matter volume was assessed using optimized volumetric voxel-based morphometry. ANOVA was performed to test the difference of the gray matter volume (GMV). RESULTS: Compared with controls, the patients with paranoid schizophrenia showed decreased gray matter volume in left superior temporal gyrus, right middle temporal gyrus and inferior temporal gyrus, and increased gray matter volume in bilateral inferior frontal gyrus and bilateral claustrum. Whereas, the patients with bipolar disorder (mania) showed decreased gray matter volume in right superior temporal gyrus, middle temporal gyrus, inferior temporal gyrus and bilateral caudate, and increased gray matter volume in bilateral precuneus, left postcentral gyrus, right superior frontal gyrus and left cingulated gyrus. The patients with paranoid schizophrenic patients had greater gray matter volume in left inferior frontal gyrus, left superior temporal gyrus and right caudate than the patients with bipolar disorder. CONCLUSION: Patients with schizophrenic and bipolar disorder have different changes in brain structure. However, they also share the same reduction of GDV in right temporal gyrus.


Assuntos
Transtorno Bipolar/patologia , Encéfalo/patologia , Imageamento por Ressonância Magnética , Esquizofrenia Paranoide/patologia , Adolescente , Adulto , Mapeamento Encefálico , Estudos de Casos e Controles , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Masculino , Adulto Jovem
13.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 26(5): 490-4, 2009 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-19806565

RESUMO

OBJECTIVE: To explore the role of genetic factors in the brain structural variation by using magnetic resonance imaging scan in schizophrenic patients and their unaffected siblings, and to provide experimental evidence for identifying endophenotype of schizophrenia. METHODS: The optimized voxel-based morphometry (OVBM) was used to process the brain magnetic resonance images in 15 first episode drug-naive schizophrenic patients, 19 unaffected siblings of the patients and 38 normal control subjects. The data were analyzed by using general linear model. RESULTS: Compared to the normal control subjects, significant decreases of gray matter was observed in first episode drug-naive schizophrenia in bilateral temporal lobe, bilateral occipital lobe, left insula, left frontal lobe superior frontal gyrus and right lentiform nucleus medial globus pallidus. Significant increases of gray matter in bilateral parietal lobe, bilateral limbic lobe cingulate gyrus in patients group while compared to controls were also found. In unaffected siblings, significant decreases of gray matter was observed in the right temporal lobe, bilateral occipital lobe, left insula, and left frontal lobe precentral gyrus, and significant increases of gray matter were found in left parietal lobe and bilateral cerebellum posterior lobe. Increased gray matter in left parietal lobe precuneus was found in first episode drug-naive schizophrenia when compared with their unaffected siblings. CONCLUSION: There were similar brain structure abnormalities between the first episode drug-naive schizophrenia and their unaffected siblings. Genetic factor may play important role in brain structural abnormality in schizophrenia, which suggested that the brain structural change might be a genetic endophenotype of schizophrenia.


Assuntos
Encéfalo/diagnóstico por imagem , Esquizofrenia/diagnóstico por imagem , Adulto , Encéfalo/anormalidades , Estudos de Casos e Controles , Humanos , Imageamento por Ressonância Magnética , Masculino , Radiografia , Esquizofrenia/genética , Esquizofrenia/patologia
14.
Ai Zheng ; 27(12): 1327-30, 2008 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-19080003

RESUMO

BACKGROUND & OBJECTIVE: At present, the molecular mechanisms of development and progression of bladder cancer are still poorly understood. This study was to explore the expression and significance of Bmi-1 in bladder cancer, and analyze its correlations to clinicopathologic features and prognosis of bladder cancer. METHODS: The expression of Bmi-1 protein in 137 specimens of bladder cancer and 30 specimens of normal bladder tissues was detected by SP immunohistochemistry, and its correlations to clinicopathologic features and prognosis of the patients were analyzed. RESULTS: The positive rate of Bmi-1 protein was significantly higher in bladder cancer than in normal bladder tissues (54.3% vs. 16.7%, P<0.05). The positive rate of Bmi-1 protein was 20.6% in grade G1 bladder cancer, 54.3% in grade G2 bladder cancer, and 78.8% in grade G3 bladder cancer, with significant difference (P<0.05). It was significantly lower in superficial bladder cancer than in invasive bladder cancer (32.5% vs. 81.5%,P<0.05). The expression intensity of Bmi-1 was related to tumor size, classification, TNM stage and prognosis (P<0.05), but not to tumor number and tumor recurrence (P>0.05). The patients were followed up for 44-86 months, with a median of 66 months. The 5-year survival rate was significantly higher in superficial bladder cancer patients than in invasive bladder cancer patients (89.6% vs. 39.2%, P<0.05), and higher in Bmi-1-negative patients than in Bmi-1-positive patients (78.5% vs. 50.8%,P<0.05). CONCLUSIONS: Bmi-1 protein is highly expressed in bladder cancer. Detecting Bmi-1 protein is helpful for diagnosis and prognostic evaluation of bladder cancer.


Assuntos
Proteínas Nucleares/metabolismo , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Repressoras/metabolismo , Neoplasias da Bexiga Urinária/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/metabolismo , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Complexo Repressor Polycomb 1 , Prognóstico , Taxa de Sobrevida , Carga Tumoral , Bexiga Urinária/metabolismo , Neoplasias da Bexiga Urinária/patologia , Adulto Jovem
15.
Ai Zheng ; 27(11): 1226-8, 2008 Nov.
Artigo em Chinês | MEDLINE | ID: mdl-19000459

RESUMO

BACKGROUND & OBJECTIVE: At present, pediatric testicular yolk sac tumor is hard to be diagnosed at early stage, and the treatment strategy for this disease after radical inguinal orchiectomy is uncertain. This study was to summarize our experience in diagnosing and treating clinical stage I pediatric testicular yolk sac tumors. METHODS: Clinical data of ten patients with clinical stage I pediatric testicular yolk sac tumors treated from July 2001 to June 2007 were analyzed. RESULTS: Testicular masses with low or uneven echoes were detected by B ultrasound in 11 testes of ten patients. The serum level of alpha fetoprotein (AFP) was increased in nine patients. Radical inguinal orchiectomy (RIO) was performed for all patients whereas chemotherapy was not administered preoperatively. Pathology examination was used to confirm the diagnosis of yolk sac tumor. One patient with vascular invasion and another one with bilateral testicular yolk sac tumor received cisplatin-based adjuvant chemotherapy. Retroperitoneal lymph node dissection (RPLND) was not performed in these patients. No recurrence was found in nine patients during follow-up with a mean of 3 years. The patient with bilateral testicular tumor had retroperitoneal and lung metastases at 23 months after adjuvant chemotherapy, and achieved complete remission again after salvage chemotherapy. CONCLUSIONS: With the combination of B ultrasound and serum AFP level, we can assess and diagnose stage I pediatric testicular yolk sac tumor. RIO could be used to treat it with good outcomes, while RPLND is not necessary. Chemotherapy is recommended to treat patients with high-risk of relapse.


Assuntos
Tumor do Seio Endodérmico , Neoplasias Testiculares , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bleomicina/uso terapêutico , Quimioterapia Adjuvante , Pré-Escolar , Cisplatino/uso terapêutico , Tumor do Seio Endodérmico/sangue , Tumor do Seio Endodérmico/diagnóstico por imagem , Tumor do Seio Endodérmico/patologia , Tumor do Seio Endodérmico/secundário , Tumor do Seio Endodérmico/terapia , Etoposídeo/uso terapêutico , Seguimentos , Humanos , Lactente , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/secundário , Masculino , Estadiamento de Neoplasias , Orquiectomia/métodos , Indução de Remissão , Neoplasias Retroperitoneais/tratamento farmacológico , Neoplasias Retroperitoneais/secundário , Neoplasias Testiculares/sangue , Neoplasias Testiculares/diagnóstico por imagem , Neoplasias Testiculares/patologia , Neoplasias Testiculares/terapia , Ultrassonografia , alfa-Fetoproteínas/metabolismo
16.
Ai Zheng ; 27(9): 966-9, 2008 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-18799037

RESUMO

BACKGROUND & OBJECTIVE: Urachal carcinoma is a rare malignancy. This study was to summarize our clinical experience in the diagnosis and treatment of urachal carcinoma. METHODS: Fourteen cases of urachal carcinoma treated from May 1994 to April 2007 at Cancer Center and The First Affiliated Hospital of Sun Yat-sen University were retrospectively reviewed and analyzed. RESULTS: The most common complaints of the 14 patients were hematuria and irrigative bladder symptoms. Cystoscopy mainly revealed broad-based tumors located at the dome of the bladder. Soft-tissue masses between the bladder dome and the abdominal wall were detected by imaging examinations; the wall of the bladder was often invaded. Thirteen patients were found adenocarcinoma, the other one was malignant stromal cell tumor. Seven patients underwent extensive partial excision of the bladder, among which one case developed local recurrence 24 months after operation, while the other six cases were followed up for 14-120 months, with a median follow-up of 42 months without recurrence. Three patients underwent radical bladder resection and urinary diversion, two of which were followed up for 16 months and 84 months respectively without recurrence, while the other one died from surgical complications 3 months after operation. One case underwent partial cystectomy at another hospital developed recurrence 10 months after operation. Three advanced cancer patients received chemotherapy, two of which achieved progression free survival for seven and eight months respectively, while the other one died three months after chemotherapy. The one- and five-year survival rates were 85.7% and 61.2%, respectively. CONCLUSIONS: Extensive partial excision of the bladder is recommended for urachal carcinoma. Radical removal of the tumor during the first treatment and comprehensive therapies for advanced cancer patients and patients with recurrence or metastasis after operation are critical to improve the treatment efficacy of urachal carcinoma.


Assuntos
Adenocarcinoma/cirurgia , Cistectomia/métodos , Úraco/patologia , Neoplasias da Bexiga Urinária/cirurgia , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/patologia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Estudos Retrospectivos , Taxa de Sobrevida , Úraco/cirurgia , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/patologia , Adulto Jovem
17.
Ai Zheng ; 27(5): 531-4, 2008 May.
Artigo em Chinês | MEDLINE | ID: mdl-18479605

RESUMO

BACKGROUND & OBJECTIVE: Latent pheochromocytoma (PHOE) is a rare disease with no symptom of hypertension, which is easily to be misdiagnosed before operation. There occurs dramatic fluctuations of blood pressure during surgical resection, and the risk of surgery for these patients is rather high. This study was to summarize our experiences in handling emergent treatment for latent PHOE. METHODS: Clinical data of 11 patients underwent latent PHOE resection from Sep. 2002 to Jun. 2007 were analyzed. RESULTS: Of the 11 patients, 9 received general anesthesia, 2 received epidural anesthesia first and were changed to general anesthesia during operation; 8 patients underwent open surgery, 3 underwent laparoscopic adrenalectomy. The average of the maximal intraoperative systolic blood pressure (SBP) was 253 mmHg (range, 165-330 mmHg) and the average of the minimal SBP was 92 mmHg (range, 55-120mmHg). The SBP of 3 patients exceeded 300 mmHg. Four patients had Intraoperative hypotension (SBP<90 mmHg). According to the intraoperative blood pressure, latent PHOE was diagnosed. The emergent treatments included rapidly performed monitoring of anesthesia, fluid expansion, administration of vasoactive drugs to control the blood pressure, and operation under the supervision and cooperation of anesthesia. All operations were successfully completed. The average operative time and blood loss were 135 min (range, 90-180 min) and 280 mL (range, 100-500 mL), respectively. No patient required a blood transfusion. No heart failure, pulmonary edema, and other serious complications appeared. All cases were confirmed PHOE pathologically after operation and the mean hospitalization time was 8 days (range, 6-11 days). All the patients were cured and discharged. CONCLUSION: With full coordination with anesthesia and skillful surgical techniques, the surgery of latent PHOE diagnosed during operation can be accomplished at one time.


Assuntos
Neoplasias das Glândulas Suprarrenais/diagnóstico , Neoplasias das Glândulas Suprarrenais/cirurgia , Adrenalectomia/métodos , Feocromocitoma/diagnóstico , Feocromocitoma/cirurgia , Adolescente , Neoplasias das Glândulas Suprarrenais/fisiopatologia , Adulto , Idoso , Anestesia Epidural , Anestesia Geral , Perda Sanguínea Cirúrgica , Pressão Sanguínea , Feminino , Humanos , Período Intraoperatório , Laparoscopia , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Feocromocitoma/fisiopatologia , Resultado do Tratamento , Adulto Jovem
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