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Query: UMLS:C0024623 (gastric cancer)
 36,219 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Infection with Helicobacter pylori increases an individual's risk of peptic ulceration and gastric cancer. In the developed world, prevalence of infection rises with age and varies with social class. We used a cross-sectional study design to test the hypothesis that H pylori infection would be more closely associated with childhood living conditions than with current socioeconomic status. Prevalence of IgG antibodies against H pylori was determined with an enzyme-linked immunosorbent assay in 215 subjects (median age 46 years, range 18-82) attending a health-screening clinic in London. Seropositivity varied from 9% (age less than 30) to 67% (greater than or equal to 70). Subjects were asked about their living conditions at present and when they were aged 8 years. Absence of a fixed hot-water supply (p = 0.0005) and domestic crowding (p = 0.0005) in childhood were powerful independent risk factors for current infection with H pylori. Among current living conditions, only the number of children living in the household was independently associated with H pylori infection (p = 0.004). Most British adults infected with H pylori probably became infected by household contact in childhood.
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PMID:Childhood living conditions and Helicobacter pylori seropositivity in adult life. 135 29

Development of double cancer was evaluated in 311 small cell lung cancer patients who had received intensive chemotherapy with or without radiotherapy. Of those, 10 patients (3.2%) developed a second malignancy:stomach cancer in four, non-small cell lung cancer in three, acute myelogenous leukemia in two, and liver cancer in one. The cumulative risk for the development of double cancer was 1.0% at 1-year, 17.0% at 3-years, and 100% at 8.1 years. The relative risk for the development of double cancer calculated by person-year method utilizing age and sex adjusted cancer incidence in Japan was 2.96-fold (p less than 0.01). The risk of non-small cell lung cancer (6.65-fold) and acute myelogenous leukemia (54.9-fold) was particularly high. Of 21 patients who survived disease-free for more than 2 years, 8 patients died; four patients (50%) died of second malignancy, two died of infectious disease, and only two patients died from recurrent small cell lung cancer. These results indicate that a cautious follow-up program for the detection of double cancer is indicated in patients surviving small cell lung cancer.
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PMID:[Double cancer in small cell lung cancer patients treated with intensive chemotherapy with or without radiation therapy]. 166 79

In 1901, 20% of autopsied subjects in Trieste were under the age of 30 and 28.8% were over 70. By 1985, only 0.2% were under 30 years of age and 74.5% over 70. An analysis of autopsy reports for 1901 reveals that the primary causes of death at that time were tuberculosis (22.4%), acute pulmonary infections (13.7%) and malignant neoplasms (10.6%). Other pathological conditions found at autopsy were infectious lesions (10.4%), chronic obstructive pulmonary disease (10.2%), arteriosclerosis (only 6.4%), syphilis (4.7%), nutritional deficiency (4.7%), cirrhosis of the liver (4.6%) and acute infections (1.1%). Overall, infectious diseases accounted for 55% of deaths in 1901. In 1985, the cause of death was infection in only 3.7% of cases. During the period analysed, the percentage of deaths from cancer tripled and mean length of survival increased by more than 20 years. In 1901, the neoplasms found most frequently were gastric cancer in males (17.9%) and cancers of the uterus and ovary in females (both 13%). Lung cancer accounted for 7.7% of all deaths from malignant neoplasms in males, and breast cancer for 10.8% of such deaths among females. By 1985, lung cancer accounted for 32.4% of deaths from malignant neoplasms among males and breast cancer for 18% among females. Between 1901 and 1985, there were highly significant increases in the numbers of deaths due to arteriosclerosis and to malignant neoplasms in people of each sex.
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PMID:Changes in underlying causes of death during 85 years of autopsy practice in Trieste. 185 46

Ascariasis is considered to be one of the rare infectious diseases in Japan, but recently it has been slightly increasing. This paper reports three ascariasis cases who seemed to be infected recently in the Kitakyushu area, Japan. Case 1: A 59-year-old woman in Kitakyushu City passed a round worm after continuous abdominal pain. The patient was discharged from the hospital because of no further abnormal intestinal symptoms and findings. Case 2: An 85-year-old woman in Nakama City, who suffered from cerebral infarction, vomited a round worm before hospitalization. Many ascarid eggs were detected after admission, and after treatment with pyrantel pamoate (Combantrin) two round worms were passed and egg detection became negative. Case 3: A 77-year-old man in Saikawa Town vomited 3 round worms after gastrectomy due to early gastric cancer. Many unfertilized eggs were also detected from the stool together with hook worm eggs, but no eggs were found after administration of pyrantel pamoate. Morphological examination was made by a scanning electron microscope on the denticles on the dentigerous lip ridges of the worms to differentiate from possible infection with a pig parasite, Ascaris suum. The three cases were diagnosed as ascariasis due to human Ascaris lumbricoides based on the following evidences that the expelled worms had 1) less pointed tips of the denticles and shallower or wider interdenticle notches, and 2) far more denticles of smaller size along the dentigerous ridges, compared with Ascaris suum. The necessity of differentiating pig- from human-ascarids, when considering human infection with Ascaris suum, is discussed.
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PMID:[Three recent cases of ascariasis in northern Kyushu]. 336 68

During the 11 year period from 1970 through 1980, 103 patients underwent total gastrectomy for gastric cancer. Splenectomy was performed in 53 of the patients because of perioperative accidental injury or an operative finding of tumor metastasis to the lymph nodes or direct invasion to the splenic hilus. Retrospective comparisons were carried out among the 53 splenectomized and 50 nonsplenectomized patients in terms of the long-term survival rate and early and late complications. The two groups of patients were quite similar with regard to rates of curative resection and stages of disease. The 5 year cumulative survival rates overall and in the splenectomized and nonsplenectomized groups were 23.1, 21.8 and 23.8 percent, respectively. Splenectomy did not affect the prognosis of gastric cancer. In addition, there were no differences between the two groups in the incidences of early surgical complications and infectious disease of late onset. Our results suggest that, in the treatment of gastric cancer, splenectomy may not be avoided, either when the spleen is injured perioperatively or when cancer involvement is suspected in the splenic hilus.
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PMID:The negative effect of splenectomy on the prognosis of gastric cancer. 649 56

Chile has been no exception to the Latin American trend of declining general mortality, i.e., over the past 20 years (between 1961-81) general mortality in Chile fell by some 47%. A number of circumstances makes Chile a suitable place for studying the factors leading to these favorable developments. National information is available, including reasonably reliable data on the magnitude of health problems, the risks of dying, and the collection of conditioning factors affecting health. Adjusting for age and sex, overall mortality in Chile fell by 20% in the 1960s and 29% in the 1970s, but the most marked declines, especially in the latter decade, occurred among infants (a 60% reduction) and children 1-4 years old (a 67% reduction). Morbidity indicators suggest that overall morbidity declined little, but considerable reductions were observed in infectious disease cases preventable by immunization as well as in moderate and severe cases of malnutrition. Data on deaths attributed to specific causes show that mortality due to certain causes, including communicable diseases, malnutrition, maternal problems, and stomach cancer, dropped sharply, while mortality caused by a wide range of mostly chronic problems remained relatively stable. This implies that health efforts made to combine those latter problems failed to greatly modify the mortality involved. It is difficult to quantify the mental health status of any group unless data on reliable and representative indicators are available. In Chile, information is available only on mortality caused by problems whose genesis normally involves a change in mental health. This happens in the case of alcoholism and cirrhosis of the liver, the latter generally being caused in Chile by excess alcohol consumption. Accidents and violent acts also have been associated frequently in Chile with excess alcohol consumption and emotional disturbances. With the exception of mortality attributed to alcoholism, which increased by 0.3 deaths/100,000 inhabitants between 1970-80, mortality caused by the rest of the conditions associated with mental problems decreased during the decade. The major economic crisis of the 1970s seemed to have no effect on the mortality trend, so that declining mortality appears independent of the significant variations in per capita income during this period. Since the 1960s the Chilean health policy has assigned top priority to maternal and child health, emphasizing periodic checkups for expectant mothers, infants, and young children. Available evidence strongly supports the idea that a notable extension of coverage provided by the Chilean health services, especially primary care and infant oriented health services, was principally responsible for the rapid decline of infant and young child mortality.
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PMID:An analysis of health progress in Chile. 665 16

Disseminated intravascular coagulation (DIC) was examined pathologically in 4906 consecutive autopsy cases during the last 11 years. The cases having pathologically confirmed DIC showing microthrombi in three or more organs were 88. Of the underlying diseases for these cases, malignant tumor was found in 40 cases and diseases of hematopoietic organs in 19. Of the cases with malignant tumor, 11 had gastric cancer, 7 had lung cancer, and 4 had pancreatic cancer. Thirty-three of the 40 cases with malignant tumor showed metastasis in two or more organs. Cases with pathologically confirmed or suspected DIC that had microthrombi in one or more organs were 319. As for the incidence of pathologically suggestive DIC in each disease, the incidence of malignant tumor was 7.3% and that for diseases of the hematopoietic organ was 10.6%. Infection is an important underlying condition, especially gram-negative bacillus septicemia which may play an important role in the development of DIC. An increase in the number of white blood cells appears to be one of the causative conditions of DIC. Kidney is involved most frequently by the deposition of microthrombi, and 27 out of 88 cases show ischemic lesions induced by intravascular coagulation. There were 109 cases having clinically diagnosed or suspected DIC, but 67 cases showed no microthrombus formation. On the other hand, 63 among 4,797 cases with clinically unsuspected DIC revealed microthrombus formation in three or more organs by the postmortem examination.
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PMID:Incidence and clinicopathological significance of DIC in autopsy cases. 666 56

Infection by bacteria, parasites or viruses and tissue inflammation such as gastritis, hepatitis and colitis are recognized risk factors for human cancers at various sites. Nitric oxide (NO) and other oxygen radicals produced in infected and inflamed tissues could contribute to the process of carcinogenesis by different mechanisms, which are discussed on the basis of authors' studies on liver fluke infection and cholangiocarcinoma development. A similar mechanism could apply to other suspected and known cancer-causing agents including Helicobacter pylori infection (stomach cancer) or asbestos exposure (lung mesothelioma). Studies on the type of tissue and DNA damage produced by NO and by other reactive oxygen species are shedding new light on the molecular mechanisms by which chronic inflammatory processes may initiate or enhance carcinogenesis in humans.
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PMID:Chronic infections and inflammatory processes as cancer risk factors: possible role of nitric oxide in carcinogenesis. 751 36

The data from 329 gastric cancer patients (206 males and 123 females) were applied to the following statistical analysis. The stage of gastric cancer progress, which was determined by the general rules for the gastric cancer study in Japan, the counterpart of the TNM classification was predictable by a multi-variative mathematical model based on Hayashi's quantification theory which allowed to use qualitative variables as well as quantitative ones for the calculation using the variables relevant to clinical findings consisted of the grade of surgical operability, the grade of histopathological change, positive or negative liver metastasis, positive or negative histopathologically detectable lymph-node metastasis and so on. The variables relevant to clinical findings predicted accurately the stage by the above-cited model and multi-variative correlation coefficient (R2) was 0.9475, suggesting that 95% of the values predicted by those variables could identical to the observed value of the cancer stage. The variables relevant to clinical findings contributed only 29% (R2 = 0.2902) to the prediction of the histopathological grade. The stage and the histopathological grade also were predictable with the multi-variative regressive equations using the data of the clinico-pathological examinations which were administered on the day before the operation to 239 patients (139 males and 95 females) of gastric cancer and 82 control surgical patients (50 males and 32 females). The clinico-pathological indicators consisted of the SI values of Con A and PHA, leukocytes' count, lymphocytes' count, serum albumin concentration, B- and T-cell numbers. The factors which contributed to the stage, or the histopathological grade of gastric cancer were extracted respectively through principal component analysis using the respective correlation matrices consisted of the variables used for the calculation of the multi-variative regression equations in order to predict the stage or histopathological grade. For the male patients, the aging factor contributed to both of the stage and the histopathological grade. For the female patients, the factor relevant to the complication such as infectious diseases and low-nutrition emaciating the patient contributed to the cancer stage and the factor relevant to T-lymphocyte function contributed to the histopathological grade.
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PMID:[Studies on the classification of clinical stage and histopathological grade of gastric cancer, the contribution of clinical findings and clinico-pathological changes including immunological responses]. 772 75

Infection of the stomach and the duodenum by Helicobacter pylori is the major cause of acute and chronic gastroduodenal pathologies in humans and increases the risk of gastric cancer. The recognition of the infectious nature of the illness is having a major impact in the management of the disease that is shifting from the treatment of symptoms by anti-H2 blockers to the eradication of the bacterial infection by antibiotic regimen. Experience with other bacterial diseases, suggests that antibiotic treatment will select resistant strains that in the long term will make the antibiotics infective. Vaccination that classically is the most effective way to prevent and control infectious diseases in large population, could be used to prevent infection and possibly also to treat the disease. Here we summarize the studies on the identification and characterization of the virulence factors that are important for the pathogenesis of the bacterium and that may be candidate components for a vaccine. Animal models of the infection are also described.
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PMID:Pathogenesis of Helicobacter pylori and perspectives of vaccine development against an emerging pathogen. 775 8


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