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2.
Obes Surg ; 30(5): 2021-2025, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32078104

RESUMO

BACKGROUND: Roux-en-Y gastric bypass (RYGB) is one of the most frequently performed bariatric procedures worldwide. Remnant gastric cancer after RYGB is a rare complication. There were about seventeen cases reported in the world. The location of the tumor in these cases occurs mainly in the gastric antrum, followed by the body, then the pylorus and linitis plastica, and the last was fundus of the stomach. To the best of our knowledge, this is the first case that gastric cancer located in the cardia of stomach after RYGB. CASE REPORT: A 68-year-old male patient had chronic esophagitis, bile reflux gastritis, and erosive antral gastritis 5 years after RYGB and now developed to aggressive carcinoma in the gastric pouch. In spite of having chemotherapy and traditional Chinese medicine therapy, the patient died of multiple organ failure after 15 months. CONCLUSIONS: This case report highlights the importance to have gastroscopy to observe the proximal small remnant stomach after RYGB in long-term follow-up. Attention must be paid when patients develop symptoms like abdominal pain or excessive weight loss after RYGB. For patients at high risk such as those who have a family history of gastric cancer or presenting abnormal levels of tumor markers should rather undergo Sleeve Gastrectomy plus Jejunojejunal Bypass (SGJB) instead of RYGB.


Assuntos
Derivação Gástrica , Obesidade Mórbida , Neoplasias Gástricas , Idoso , Cárdia/cirurgia , Gastrectomia/efeitos adversos , Derivação Gástrica/efeitos adversos , Humanos , Masculino , Obesidade Mórbida/cirurgia , Neoplasias Gástricas/etiologia , Neoplasias Gástricas/cirurgia
3.
Int J Cancer ; 146(11): 2999-3010, 2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-31472027

RESUMO

Gastric cancer remains a leading cause of cancer-related mortality. Identifying dietary and other modifiable disease determinants has important implications for risk attenuation in susceptible individuals. Our primary aim was to estimate the association between dietary and supplemental intakes of calcium and magnesium and the risk of incident gastric cancer. We conducted a prospective cohort analysis of the National Institutes of Health-American Association of Retired Persons Diet and Health Study. We used Cox proportional hazard modeling to estimate the association between calcium and magnesium intakes with risk of incident gastric adenocarcinoma (GA) overall and by anatomic location, noncardia GA (NCGA) and cardia GA (CGA). A total of 536,403 respondents (59% males, 41% females) were included for analysis, among whom 1,518 incident GAs (797 NCGA and 721 CGA) occurred. Increasing calcium intake was associated with lower risk of GA overall (p-trend = 0.05), driven primarily by the association with NCGA, where the above median calcium intakes were associated with a 23% reduction in risk compared to the lowest quartile (p-trend = 0.05). This magnitude of NCGA risk reduction was greater among nonwhite ethnic group and Hispanics (hazard ratio [HR] 0.51, 95% confidence interval [CI]: 0.24-1.07, p-trend = 0.04), current/former smokers (HR 0.58, 95% CI: 0.41-0.81), obese individuals (HR 0.54, 95% CI: 0.31-0.96) and those with high NCGA risk scores (HR 0.50, 95% CI: 0.31-0.80). Among men only, increasing magnesium intake was associated with 22-27% reduced risk of NCGA (p-trend = 0.05), while for the cohort, dietary magnesium intake in the highest vs. lowest quartile was associated with a 34% reduced risk of NCGA (HR 0.66, 95% CI: 0.48-0.90). These findings have important implications for risk factor modification. Future investigations are needed not only to confirm our results, but to define mechanisms underlying these associations.


Assuntos
Adenocarcinoma/prevenção & controle , Cálcio da Dieta/farmacologia , Magnésio/farmacologia , Neoplasias Gástricas/prevenção & controle , Adenocarcinoma/epidemiologia , Cárdia/patologia , Estudos de Coortes , Dieta , Suplementos Nutricionais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estado Nutricional/fisiologia , Estudos Prospectivos , Neoplasias Gástricas/dietoterapia , Neoplasias Gástricas/epidemiologia , Inquéritos e Questionários , Estados Unidos/epidemiologia
4.
Artigo em Inglês | WPRIM | ID: wpr-109539

RESUMO

BACKGROUND/AIMS: Achalasia cardia (AC) is a motility disorder, characterized by impaired lower esophageal sphincter relaxation and absence of esophageal peristalsis. AC is rare in children with unclear optimum management strategies. Per oral endoscopic myotomy (POEM) is a novel technique for management of achalasia with encouraging results in adult patients. The efficacy and safety of POEM is not known for pediatric AC. The aim of our study was to evaluate the safety and efficacy of POEM in children with achalasia cardia METHODS: The data of all children (< 18 years) who underwent POEM at our center was retrospectively analysed. Symptoms were analysed using a validated score (Eckardt score) at regular predefined intervals. Objective parameters including high-resolution manometry, timed barium swallow and esophagogastroduodenoscopy were assessed before the procedure and at 1-year follow-up. Clinical success was defined as an Eckardt score ≤ 3. RESULTS: A total of 15 children underwent POEM during the specified period. Ten out of 15 (10/15) completed 1-year follow-up. Median operative time was 100 (38–240) minutes. Mean pre and post procedure LES pressure were 36.64 ± 11.08 mmHg and 15.65 ± 5.73 mmHg, respectively (P = 0.001). Mean Eckardt score before and after the POEM was 7.32 ± 1.42 and 1.74 ± 0.67, respectively (P = 0.001). Mean percentage improvement in barium emptying at 5 minutes was 63.70 ± 4.46%. All children had complete resolution of symptoms at 1 year. Median weight gain of children at 1 year was 0.65 kg (range, 0.0–4.6). CONCLUSIONS: POEM is safe and effective for children and adolescents with achalasia. Future trials with larger sample size are warranted to establish its efficacy in pediatric AC.


Assuntos
Adolescente , Adulto , Criança , Humanos , Bário , Cárdia , Endoscopia , Endoscopia do Sistema Digestório , Acalasia Esofágica , Esfíncter Esofágico Inferior , Seguimentos , Manometria , Duração da Cirurgia , Peristaltismo , Relaxamento , Estudos Retrospectivos , Tamanho da Amostra , Aumento de Peso
6.
Am J Surg ; 205(6): 711-7, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23422318

RESUMO

BACKGROUND: Advanced esophageal adenocarcinomas are associated with 5-year survival rates ranging from 14% to 35%. Nodal status and tumor clearance are the main prognostic factors. However, their respective prognostic values have not been compared to date. METHODS: Seventy consecutive patients with stage T3 adenocarcinomas of the esophagus or gastric cardia were retrospectively assessed. Neoadjuvant therapy was indicated in all cases. Prognostic values of R0 resection and nodal status were evaluated using univariate and multivariate analyses. RESULTS: Neoadjuvant therapy was achieved in 62 patients, 41 with radiochemotherapy and 21 with perioperative chemotherapy. Transthoracic esophagectomy and transhiatal esophagectomy were performed in 54 and 15 patients, respectively. Clavien-Dindo grade III or IV complications occurred in 16 patients (23%). Two patients died in the hospital (3%). In univariate and multivariate analyses, nodal status was the main independent factor predicting overall survival; tumor clearance (R0 or R1) had less prognostic impact and was not statistically significant. Furthermore, R1 resection was a prognostic indicator for metastatic recurrence. CONCLUSIONS: These results indicate that nodal status has more prognostic impact than R status in stage T3 adenocarcinomas of the esophagus or gastric cardia. Thus, local control in R1 patients by postoperative radiotherapy is not justified.


Assuntos
Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/patologia , Metástase Linfática , Adenocarcinoma/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cárdia/patologia , Quimiorradioterapia , Quimioterapia Adjuvante , Cisplatino/administração & dosagem , Neoplasias Esofágicas/terapia , Esofagectomia , Feminino , Fluoruracila/administração & dosagem , Humanos , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Terapia Neoadjuvante , Complicações Pós-Operatórias , Prognóstico , Estudos Retrospectivos , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Neoplasias Gástricas/terapia
7.
Int J Cancer ; 133(2): 455-61, 2013 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-23319416

RESUMO

Opium use has been associated with higher risk of cancers of the esophagus, bladder, larynx, and lung; however, no previous study has examined its association with gastric cancer. There is also little information on the associations between hookah (water pipe) smoking or the chewing of tobacco products and the risk of gastric cancer. In a case-control study in Golestan Province of Iran, we enrolled 309 cases of gastric adenocarcinoma (118 noncardia, 161 cardia and 30 mixed-location adenocarcinomas) and 613 matched controls. Detailed information on long-term use of opium, tobacco products and other covariates were collected using structured and validated lifestyle and food frequency questionnaires. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were obtained using conditional logistic regression models. Opium use was associated with an increased risk of gastric adenocarcinoma, with an adjusted OR (95% CI) of 3.1 (1.9-5.1), and this increased risk was apparent for both anatomic subsites (cardia and noncardia). There was a dose-response effect, and individuals with the highest cumulative opium use had the strongest association (OR: 4.5; 95% CI: 2.3-8.5). We did not find a statistically significant association between the use of any of the tobacco products and risk of gastric adenocarcinoma, overall or by anatomic subsite. We showed, for the first time, an association between opium use and gastric adenocarcinoma. Given that opium use is a traditional practice in many parts of the world, these results are of public health significance.


Assuntos
Adenocarcinoma/diagnóstico , Ópio/efeitos adversos , Neoplasias Gástricas/diagnóstico , Adenocarcinoma/epidemiologia , Adenocarcinoma/etiologia , Adenocarcinoma/patologia , Adulto , Idoso , Biópsia , Cárdia/patologia , Estudos de Casos e Controles , Feminino , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Pessoa de Meia-Idade , Razão de Chances , Fatores de Risco , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/etiologia , Neoplasias Gástricas/patologia , Inquéritos e Questionários
8.
Chirurg ; 83(8): 702-8, 710-1, 2012 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-22878576

RESUMO

The basis for decision-making about an individualized surgical treatment of adenocarcinoma of the esophagogastric junction is tumor staging and exact evaluation of the topography of the tumor in the small junctional area. The diagnostics mainly comprise endoscopy, biopsy, endosonography, computed tomography and partially diagnostic laparoscopy. This results in a clinical TNM staging and an evaluation according to the AEG classification from oral to aboral in type I (esophagus), type II (cardia) and type III (subcardia). Endoscopic resection is only appropriate for the infrequent mucosal carcinomas whereas the majority of the junctional carcinomas are treated by surgical resection. This is combined with neoadjuvant treatment in case of T3 or resectable T4 carcinomas. A type I carcinoma is removed by radical transthoracic en bloc esophagectomy with high intrathoracic esophagogastrostomy after gastric pull-up. In case of type II or III carcinomas, a transhiatal extended gastrectomy including distal esophageal resection is performed with reconstruction by Roux en Y esophagojejunostomy in the lower mediastinum. However, some advanced type II carcinomas which cannot be resected R0 at the esophagus need esophagectomy and gastric pull-up. This surgical strategy is justified by the topography of the lesion and the corresponding lymphatic drainage. Very rare indications are seen for a limited resection with interposition of small bowel in some mucosal carcinomas or total esophagogastrectomy with colon interposition in very advanced tumors. The neoadjuvant treatment comprises especially chemoradiation for type I and chemotherapy for type II and III carcinomas and leads to a significant survival benefit compared to surgery alone.


Assuntos
Adenocarcinoma/diagnóstico , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Neoplasias Esofágicas/patologia , Neoplasias Esofágicas/cirurgia , Junção Esofagogástrica/patologia , Junção Esofagogástrica/cirurgia , Neoplasias Gástricas/patologia , Neoplasias Gástricas/cirurgia , Biópsia , Cárdia/patologia , Cárdia/cirurgia , Progressão da Doença , Endossonografia , Neoplasias Esofágicas/diagnóstico , Esofagectomia/métodos , Gastrectomia/métodos , Gastroscopia , Humanos , Laparoscopia , Excisão de Linfonodo , Linfonodos/patologia , Terapia Neoadjuvante , Invasividade Neoplásica , Estadiamento de Neoplasias , Tomografia por Emissão de Pósitrons , Lesões Pré-Cancerosas/diagnóstico , Lesões Pré-Cancerosas/patologia , Lesões Pré-Cancerosas/cirurgia , Prognóstico , Neoplasias Gástricas/diagnóstico , Tomografia Computadorizada Espiral , Tomografia Computadorizada por Raios X , Carga Tumoral
9.
Journal of Gastric Cancer ; : 217-222, 2012.
Artigo em Inglês | WPRIM | ID: wpr-137151

RESUMO

PURPOSE: We conducted this study to study the clinical correlation between the characteristics of gastric cancer and serum selenium and zinc levels. MATERIALS AND METHODS: The following data were measured in the baseline serum selenium and zinc levels of 74 patients with curative gastrectomy subsequent to confirmed gastric cancer, from March 2005 to August 2012. RESULTS: Among the 74 gastric cancer patients, 53 patients were male. Mean serum selenium and zinc levels were 118.7+/-33.1 ug/L and 72.2+/-24.3 ug/dl, respectively. Seven patients (9.5%) showed lower selenium level, and 33 patients (44.6%) showed lower zinc level. Serum Selenium level was 99.1+/-31.8 ug/L in cardia cancer group (10 cases) and 121.8+/-32.4 ug/L in non-cardia cancer group (64 cases)(P=0.044). According to tumor gross type, zinc level was 78.7+/-29.6 ug/dl in early gastric cancer (33) and 66.9+/-17.8 ug/dl in advanced gastric cancer (41) (P=0.064). CONCLUSIONS: The serum selenium level was highly correlated with the location of gastric cancer. The serum zinc level was lower in advanced gastric cancer.


Assuntos
Humanos , Masculino , Cárdia , Gastrectomia , Selênio , Neoplasias Gástricas , Zinco
10.
Journal of Gastric Cancer ; : 217-222, 2012.
Artigo em Inglês | WPRIM | ID: wpr-137154

RESUMO

PURPOSE: We conducted this study to study the clinical correlation between the characteristics of gastric cancer and serum selenium and zinc levels. MATERIALS AND METHODS: The following data were measured in the baseline serum selenium and zinc levels of 74 patients with curative gastrectomy subsequent to confirmed gastric cancer, from March 2005 to August 2012. RESULTS: Among the 74 gastric cancer patients, 53 patients were male. Mean serum selenium and zinc levels were 118.7+/-33.1 ug/L and 72.2+/-24.3 ug/dl, respectively. Seven patients (9.5%) showed lower selenium level, and 33 patients (44.6%) showed lower zinc level. Serum Selenium level was 99.1+/-31.8 ug/L in cardia cancer group (10 cases) and 121.8+/-32.4 ug/L in non-cardia cancer group (64 cases)(P=0.044). According to tumor gross type, zinc level was 78.7+/-29.6 ug/dl in early gastric cancer (33) and 66.9+/-17.8 ug/dl in advanced gastric cancer (41) (P=0.064). CONCLUSIONS: The serum selenium level was highly correlated with the location of gastric cancer. The serum zinc level was lower in advanced gastric cancer.


Assuntos
Humanos , Masculino , Cárdia , Gastrectomia , Selênio , Neoplasias Gástricas , Zinco
11.
Intern Med ; 49(20): 2195-202, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20962437

RESUMO

BACKGROUND: Rikkunshito, a traditional Japanese (Kampo) medicine, is widely prescribed as an oral preparation for the treatment of functional dyspepsia (FD). In our previous study, we reported that extracorporeal ultrasonography (US) is a useful technique for the assessment of the gastric accommodation reflex (AR) and duodenogastric motility. In this study, we examined the effects of Rikkunshito on the gastroduodenal function in patients with FD. METHODS: Sixteen FD patients (median age, 45 y) underwent US, before and after 14 days of treatment with Rikkunshito (7.5 g b.d.). For assessment of the AR, a cross-sectional area of the proximal stomach was measured after incremental ingestion of a liquid meal up to 400-mL. The expansion rate was used as the parameter to determine the AR. Then, the gastric emptying rate (GER), motility index (MI), and reflux index (RI) were evaluated using previously reported methods. RESULTS: Although no significant changes were observed in the total score of the Gastrointestinal Symptom Rating Scale (GSRS), the scores of 3 of the 15 symptoms of GSRS decreased significantly after treatment with Rikkunshito. The expansion rate of the proximal stomach was significantly greater after treatment with Rikkunshito than before the treatment. Although the GER and MI increased significantly, no significant differences in the RI were observed after treatment with Rikkunshito. CONCLUSION: These observations suggested that Rikkunshito may be beneficial for the treatment of FD patients with impaired AR and gastric motility. These results also suggested that Rikkunshito has a therapeutic potential for FD and GERD.


Assuntos
Medicamentos de Ervas Chinesas/uso terapêutico , Dispepsia/tratamento farmacológico , Gastroparesia/tratamento farmacológico , Medicina Kampo , Fitoterapia , Dor Abdominal/diagnóstico por imagem , Dor Abdominal/tratamento farmacológico , Dor Abdominal/etiologia , Adulto , Idoso , Cárdia/diagnóstico por imagem , Cárdia/efeitos dos fármacos , Cárdia/fisiopatologia , Dispepsia/diagnóstico por imagem , Dispepsia/fisiopatologia , Feminino , Esvaziamento Gástrico/efeitos dos fármacos , Refluxo Gastroesofágico/diagnóstico por imagem , Refluxo Gastroesofágico/tratamento farmacológico , Refluxo Gastroesofágico/fisiopatologia , Motilidade Gastrointestinal/efeitos dos fármacos , Gastroparesia/diagnóstico por imagem , Gastroparesia/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão/efeitos dos fármacos , Período Pós-Prandial , Reflexo Anormal/efeitos dos fármacos , Índice de Gravidade de Doença , Ultrassonografia Doppler em Cores
13.
Ann Surg Oncol ; 16(5): 1397-402, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19241108

RESUMO

BACKGROUND: We examined the effect of aspirin on survival following resection for squamous cell carcinoma (SCC) of the esophagus or adenocarcinoma of the gastric cardia. METHODS: Patients who underwent esophagectomy for these cancers between May 2000 and December 2002 were allocated to one of three groups and given daily either a low dose of aspirin, placebo, or no tablets. RESULTS: The 5-year survival for all patients on aspirin (445) was 51.2%, placebo (658) 41%, and no tablet (495) 42.3% (P = 0.04 for difference between treatments). The 5-year survival for all SCC patients on aspirin (267) was 49.8%, placebo (433) 42.2%, and no tablet (343) 41.2% (P = 0.26). There was a significant improvement in survival for patients with adenocarcinoma of the cardia on aspirin compared with the two control groups combined (P = 0.029). Survival for T2N0M0 SCC patients was significantly improved with aspirin (71) compared with placebo (167) or no tablet (134) (P = 0.0004). However, there was no significant difference between the survival curves for T2N0M0 adenocarcinoma patients on aspirin (21) and the two control groups combined (65) (P = 0.29). CONCLUSIONS: The results of this preliminary study support further investigation of aspirin as adjuvant therapy to improve survival in subsets of postesophagectomy patients.


Assuntos
Adenocarcinoma/tratamento farmacológico , Aspirina/administração & dosagem , Carcinoma de Células Escamosas/tratamento farmacológico , Inibidores de Ciclo-Oxigenase 2/administração & dosagem , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma/mortalidade , Adenocarcinoma/terapia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/terapia , Cárdia , Quimioterapia Adjuvante , Cisplatino/administração & dosagem , Terapia Combinada , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/cirurgia , Esofagectomia , Etoposídeo/administração & dosagem , Feminino , Fluoruracila/administração & dosagem , Gastrectomia , Humanos , Masculino , Pessoa de Meia-Idade , Radioterapia Adjuvante , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/cirurgia , Análise de Sobrevida
14.
J Environ Pathol Toxicol Oncol ; 27(3): 219-32, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18652569

RESUMO

The present study reports aqueous Azadirachta indica leaf extract (AAILE)-mediated induction of apoptosis in a murine forestomach tumorigenesis model. Histochemistry-based quantification of apoptosis revealed enhanced apoptotic index in the forestomach tumors of mice receiving AAILE along with benzo(a)pyrene (B(a)P). Transmission electron microscopy confirmed the presence of classical morphological features of apoptosis including chromatin condensation/marginalization, nuclear fragmentation, and formation of apoptotic bodies. Scanning electron microscopy showed surface modifications on the transformed squamous epithelial cells and certain mitotic cells among them over the forestomach tumors of mice receiving only B(a)P. In tumors of the mice receiving AAILE along with B (a)P, such mitotic cells were found to be absent; however, certain cells showing shrinkage and blebbings (characteristics of apoptosis) were observed. DNA fragmentation was observed to increase exclusively in the tumors of mice that received AAILE along with B(a)P. Lipid peroxidation (LPO) levels decreased in forestomach tissues of mice in all the groups studied when compared to control counterparts. However, levels of LPO were found to increase in the tumorous tissue of mice that received AAILE along with B(a)P when compared to mice receiving only B(a)P. Taken together, observations of the present study suggest that A. indica induces apoptosis in B(a)P-induced murine forestomach tumors.


Assuntos
Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Azadirachta/química , Cárdia/efeitos dos fármacos , Mucosa Gástrica/efeitos dos fármacos , Extratos Vegetais/farmacologia , Neoplasias Gástricas/patologia , Animais , Benzo(a)pireno/toxicidade , Carcinógenos/toxicidade , Cárdia/metabolismo , Cárdia/patologia , Fragmentação do DNA/efeitos dos fármacos , Modelos Animais de Doenças , Feminino , Mucosa Gástrica/metabolismo , Mucosa Gástrica/ultraestrutura , Imuno-Histoquímica , Peroxidação de Lipídeos/efeitos dos fármacos , Malondialdeído/metabolismo , Camundongos , Camundongos Endogâmicos BALB C , Folhas de Planta/química , Neoplasias Gástricas/induzido quimicamente , Neoplasias Gástricas/tratamento farmacológico
15.
J Natl Cancer Inst ; 98(20): 1445-52, 2006 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-17047193

RESUMO

BACKGROUND: Colonization with Helicobacter pylori is a risk factor for gastric adenocarcinoma, but the magnitude of this association and its relationship to anatomic location of the cancer, duration of follow-up, age at diagnosis, histologic subtype, and H. pylori strain differences are less clear. We conducted a prospective nested case-control study of H. pylori serology to address these questions. METHODS: Case and control subjects were selected from the 29,133 50- to 69-year-old males recruited into the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study. At baseline, detailed demographic data and a serum sample were collected. From 1985 to 1999, 243 incident cases of gastric adenocarcinoma were diagnosed in cohort members. Serum samples from 234 case subjects (173 with noncardia gastric cancers and 61 with gastric cardia cancers) and 234 age-matched control subjects were assayed for antibodies against H. pylori whole-cell and CagA antigens. We fit conditional logistic regression models to estimate the unadjusted and adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the association of H. pylori seropositivity, defined as seropositivity to either whole-cell or CagA antigens, with noncardia gastric and gastric cardia cancers. All statistical tests were two-sided. RESULTS: H. pylori seropositivity was strongly associated with the risk of noncardia gastric cancer (adjusted OR = 7.9, 95% CI = 3.0 to 20.9) but was inversely associated with the risk of gastric cardia cancer (adjusted OR = 0.31, 95% CI = 0.11 to 0.89). H. pylori seropositivity rates did not vary statistically significantly by length of follow-up, age at diagnosis, or histologic subtype. A calculation of rates showed that the absolute risks of noncardia gastric and cardia gastric adenocarcinomas in the H. pylori-positive participants of this cohort would be 63 and 12 per 100,000 person-years, respectively, whereas corresponding rates in H. pylori-negative participants would be 8 and 37 per 100,000 person-years, respectively. CONCLUSION: H. pylori is a strong risk factor for noncardia gastric cancer but is inversely associated with the risk of gastric cardia cancer. These findings bolster the hypothesis that decreasing H. pylori prevalence during the past century may have contributed to lower rates of noncardia cancer and higher rates of cardia cancer in Western countries.


Assuntos
Adenocarcinoma/epidemiologia , Adenocarcinoma/microbiologia , Cárdia , Infecções por Helicobacter/complicações , Infecções por Helicobacter/epidemiologia , Helicobacter pylori , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/microbiologia , Adenocarcinoma/patologia , Idoso , Antígenos de Bactérias/análise , Antioxidantes/administração & dosagem , Proteínas de Bactérias/análise , Estudos de Casos e Controles , Países Desenvolvidos/estatística & dados numéricos , Suplementos Nutricionais , Finlândia/epidemiologia , Infecções por Helicobacter/patologia , Helicobacter pylori/isolamento & purificação , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/prevenção & controle , Razão de Chances , Prevalência , Prevenção Primária/métodos , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco , Fatores de Risco , Estudos Soroepidemiológicos , Neoplasias Gástricas/patologia , Fatores de Tempo , alfa-Tocoferol/administração & dosagem , beta Caroteno/administração & dosagem
16.
Gastroenterology ; 131(2): 420-7, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16890595

RESUMO

BACKGROUND & AIMS: Adenosine diphosphate ribosyl transferase (ADPRT) and x-ray repair cross-complementing 1 (XRCC1) are major DNA base excision repair proteins acting interactively in repair processes. This study examined the effects of ADPRT Val762Ala and XRCC1 Arg399Gln polymorphisms on ADPRT-XRCC1 interaction in vitro in cells and their contributions to gastric cardia adenocarcinoma (GCA) risk. METHODS: The ADPRT-XRCC1 interaction in cells transfected with ADPRT and XRCC1 variant complementary DNA (cDNA) constructs were examined by immunoprecipitation and immunoblotting analysis. Genotypes were analyzed in 500 patients and 1000 controls, and odds ratios (ORs) were estimated by logistic regression. RESULTS: Interactions between ADPRT-762Val and XRCC1-399Arg or XRCC1-399Gln were robust, but interactions between ADPRT-762Ala and either XRCC1-399Arg or XRCC1-399Gln were very weak. A case-control analysis showed ORs of 2.17 (95% CI, 1.55-3.04) and 1.61 (95% CI, 1.06-2.44) for GCA in the ADPRT Ala/Ala or XRCC1 Gln/Gln genotype carriers, respectively, compared with noncarriers. Gene-gene interaction of ADPRT and XRCC1 polymorphisms increased the OR of GCA in a multiplicative manner (OR for the presence of both ADPRT Ala/Ala and XRCC1 Gln/Gln genotypes, 6.43; 95% CI, 1.80-22.97). A supermultiplicative joint effect between the ADPRT polymorphism and smoking was observed. The ORs (95% CIs) of the Ala/Ala genotype for nonsmokers and smokers who smoked < or = 24 or > 24 pack-years were 1.44 (0.89-2.32), 2.00 (1.09-3.67), or 3.19 (1.59-6.42), respectively (Ptrend test = .008). CONCLUSIONS: The ADPRT and XRCC1 polymorphisms confer host susceptibility to GCA, which might result from reduced ADPRT-XRCC1 interaction and attenuated base excision repair capacity.


Assuntos
ADP Ribose Transferases/genética , Cárdia/patologia , DNA de Neoplasias/genética , Proteínas de Ligação a DNA/genética , Polimorfismo Genético , Neoplasias Gástricas/metabolismo , Adulto , Feminino , Seguimentos , Predisposição Genética para Doença , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Fumar/efeitos adversos , Fumar/genética , Neoplasias Gástricas/genética , Neoplasias Gástricas/patologia , Proteína 1 Complementadora Cruzada de Reparo de Raio-X
17.
Gan To Kagaku Ryoho ; 33(2): 251-3, 2006 Feb.
Artigo em Japonês | MEDLINE | ID: mdl-16484867

RESUMO

A 64-year-old woman was admitted to the hospital for abdominal fullness and constipation. In the pelvic cavity, an abdominal CT scan revealed massive ascites showing malignancy on histological examination. Upper GI endoscopy revealed type 3 gastric cancer from the anglus to the cardia. A barium-enema showed a stenotic lesion at the sigmoid colon due to peritoneal dissemination. An abnormally high CA125(1,400 mg/ml) level was detected in serum. We performed systemic chemotherapy of TS-1, CDDP and peritoneal infusion of docetaxel on the nonresected gastric cancer with peritoneal dissemination. After 2 cycles, cytology of ascites revealed no malignancy, and the serum CA125 value regained its normal level. After 3 cycles, the killer cell effect was recognized by laparoscopic examination and the stenotic change of sigmoid colon had almost disappeared. The patient clinically achieved good QOL by this method, which was very effective for nonresected gastric cancer with peritoneal dissemination.


Assuntos
Adenocarcinoma Mucinoso/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Peritoneais/secundário , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma Mucinoso/secundário , Cárdia , Cisplatino/administração & dosagem , Docetaxel , Esquema de Medicação , Combinação de Medicamentos , Feminino , Humanos , Pessoa de Meia-Idade , Ácido Oxônico/administração & dosagem , Piridinas/administração & dosagem , Qualidade de Vida , Neoplasias Gástricas/patologia , Taxoides/administração & dosagem , Tegafur/administração & dosagem
18.
Rev. cuba. cir ; 44(4)oct.-dic. 2005. tab
Artigo em Espanhol | CUMED | ID: cum-29876

RESUMO

A pesar de los avances en las técnicas quirúrgicas para las resecciones esofágicas en el cáncer de esófago y en los cuidados perioperatorios a los pacientes en este tipo de cirugía, los resultados continúan siendo heterogéneos y variados los procedimientos en la terapéutica quirúrgica de esta enfermedad. Se exponen las principales controversias sobre el tratamiento quirúrgico y las evidencias científicas relevantes respecto a cada caso en particular y se realiza un análisis crítico de cada una de ellas. Finalmente se presentan los resultados obtenidos por nuestros grupos de trabajo en el tratamiento de esta afección(AU)


Assuntos
Humanos , Neoplasias Esofágicas/cirurgia , Cárdia/cirurgia , Neoplasias Gástricas/cirurgia
19.
Rev. cuba. cir ; 44(4)oct.-dic. 2005. tab
Artigo em Espanhol | LILACS, CUMED | ID: lil-449788

RESUMO

A pesar de los avances en las técnicas quirúrgicas para las resecciones esofágicas en el cáncer de esófago y en los cuidados perioperatorios a los pacientes en este tipo de cirugía, los resultados continúan siendo heterogéneos y variados los procedimientos en la terapéutica quirúrgica de esta enfermedad. Se exponen las principales controversias sobre el tratamiento quirúrgico y las evidencias científicas relevantes respecto a cada caso en particular y se realiza un análisis crítico de cada una de ellas. Finalmente se presentan los resultados obtenidos por nuestros grupos de trabajo en el tratamiento de esta afección(AU)


In spite of the advances in the surgical techniques for the resections esofágicas in the esophagus cancer and in the cares perioperatorios to the patients in this surgery type, the results continue being heterogeneous and varied the procedures in the surgical therapy of this illness. The main controversies are exposed in particular on the surgical treatment and the excellent scientific evidences regarding each case and he/she is carried out a critical analysis of each one of them. Finally the results are presented obtained by our work groups in the treatment of this affection(AU)


Assuntos
Humanos , Neoplasias Esofágicas/cirurgia , Cárdia/patologia , Neoplasias Gástricas
20.
J Natl Cancer Inst ; 95(18): 1414-6, 2003 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-13130117

RESUMO

Participants in the General Population Trial, a randomized nutrition intervention trial in Linxian, China, who received a combination of selenium, beta-carotene, and vitamin E supplements, had statistically significantly lower cancer mortality rates than those who did not receive the supplements. In the current study, we used a case-cohort design to examine the association between pre-trial serum vitamin E levels and the risks of developing esophageal and gastric cancers during the trial. We measured serum alpha- and gamma-tocopherol and cholesterol levels in 1072 case patients with incident esophageal squamous cell carcinoma (ESCC), gastric cardia cancer (GCC), or gastric noncardia cancer (GNCC) and in 1053 control subjects. The relative risks for comparisons of the highest to the lowest quartiles of serum alpha-tocopherol were 0.63 (95% confidence interval [CI] = 0.44 to 0.91) for ESCC, 0.84 (95% CI = 0.55 to 1.26) for GCC, and 2.05 (95% CI = 0.89 to 4.75) for GNCC. Serum gamma-tocopherol level was not associated with the incidence of any of these cancers. Our findings provide support for the role of alpha-tocopherol in the etiology of upper gastrointestinal cancers.


Assuntos
Antioxidantes/administração & dosagem , Antioxidantes/metabolismo , Neoplasias Esofágicas/sangue , Neoplasias Gástricas/sangue , Vitamina E/administração & dosagem , Vitamina E/sangue , Adulto , Idoso , Cárdia , Estudos de Casos e Controles , China , Intervalos de Confiança , Suplementos Nutricionais , Neoplasias Esofágicas/prevenção & controle , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco , Selênio/administração & dosagem , Neoplasias Gástricas/prevenção & controle , alfa-Tocoferol/sangue , beta Caroteno/administração & dosagem
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