Abstract:
:Platelets may have a role in the development of animal tumor metastases. Ultrastructural studies in vivo have shown arrested tumor emboli surrounded by platelets. Several tumor cell lines induce thrombocytopenia in vivo. Certain tumor cells aggregate platelets in vitro. Correlations exist between the ability of some tumor cells to aggregate platelets in vitro and their metastatic potential in vivo. Antiplatelet agents have impaired or altered the spread of certain tumor metastases. It is suggested that platelets have a role in the sequestration, adherence, and penetration of tumor cells through the blood vessel endothelial cell barrier, thus preventing their rapid clearance from the circulation and allowing extravascular formation of nests of cells. Antiplatelet agents, particularly prostaglandins, may prove useful in preventing experimental animal metastases when administered before the inoculation of tumor cells. Their potential in human malignancy, where the patient presents with an established tumor, remains to be established.
journal_name
Ann Intern Medjournal_title
Annals of internal medicineauthors
Karpatkin S,Pearlstein Edoi
10.7326/0003-4819-95-5-636subject
Has Abstractpub_date
1981-11-01 00:00:00pages
636-41issue
5eissn
0003-4819issn
1539-3704journal_volume
95pub_type
杂志文章,评审abstract:STUDY OBJECTIVE:To determine the association between current non-aspirin nonsteroidal anti-inflammatory drug (NSAID) use and fatal peptic ulcers or upper gastrointestinal hemorrhage. DESIGN:Nested case control study using a linked Medicaid-death certificate database. SETTING:Tennessee Medicaid enrollees aged 60 and g...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-109-5-359
更新日期:1988-09-01 00:00:00
abstract::Adverse effects to D-penicillamine were studied prospectively over 3 years in 259 patients with rheumatoid arthritis. Ninety-five percent had had gold therapy previously, yet 70% benefited from D-penicillamine therapy. Of the 275 courses given, 160 (58%) were complicated by at least one reaction, including rashes (44%...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-92-1-24
更新日期:1980-01-01 00:00:00
abstract::Three patients had diverticulitis and extraintestinal manifestations of arthritis and pyoderma gangrenosum. In each, a mistaken diagnosis of idiopathic inflammatory bowel disease was first made because of extraintestinal complaints associated with the gastrointestinal symptoms of diverticular disease. The joint and sk...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-108-5-700
更新日期:1988-05-01 00:00:00
abstract::Patients with serious psychiatric disorders are frequently treated by primary care physicians, who may have difficulty keeping up with recent advances in psychiatry. This paper presents an updated synopsis for three major psychiatric illnesses: major depression, bipolar disorder, and schizophrenia. Current definitions...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-134-1-200101020-00013
更新日期:2001-01-02 00:00:00
abstract::Bioethics has become a common course of study in medical schools, other health professional schools, and graduate and undergraduate programs. An analysis of past ethical scandals, as well as the bioethics apparatus that emerged in response to them, is often central to the discussion of bioethical questions. This histo...
journal_title:Annals of internal medicine
pub_type: 历史文章,杂志文章
doi:10.7326/M15-2642
更新日期:2016-04-19 00:00:00
abstract::Discovery of the factor V Leiden and prothrombin G20210A mutations has greatly increased the percentage of patients in whom venous thrombosis can be attributed to hereditary thrombophilia. The first step in the diagnostic approach to all patients with venous thrombosis consists of a careful history and physical examin...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-135-5-200109040-00013
更新日期:2001-09-04 00:00:00
abstract::Medical school graduates are avoiding primary care. The very aspects that once attracted students have been subverted. The breadth of practice that was once appealing has become the breadth of heavy-handed scrutiny, as politicians and business leaders have demanded quality--simplistically defined as dogmatic adherence...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-150-10-200905190-00011
更新日期:2009-05-19 00:00:00
abstract:STUDY OBJECTIVE:To determine whether patients with Parkinson disease are at an increased risk for postoperative confusion. DESIGN:Retrospective chart review of patients with Parkinson disease who remained in the hospital at least 48 hours after their surgery. Current data were compared with published historical contro...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-111-3-218
更新日期:1989-08-01 00:00:00
abstract:BACKGROUND:Dietary and lifestyle modification efforts are the primary treatments for people who are obese or overweight. The effect of dietary counseling on long-term weight change is unclear. PURPOSE:To perform a meta-analysis of the effect of dietary counseling compared with usual care on body mass index (BMI) over ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析,评审
doi:10.7326/0003-4819-147-1-200707030-00007
更新日期:2007-07-03 00:00:00
abstract::Differences in blood levels of thyroid hormones have been reported when patients taking synthetic L-thyroxine were shifted from one manufactured form of the hormone to another. Because recent formulation changes have rendered these earlier data obsolete, we did a crossover study to determine differences in bioavailabi...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-102-6-770
更新日期:1985-06-01 00:00:00
abstract::The U.S. Food and Drug Administration (FDA) Amendments Act of 2007 mandated that the FDA develop a system for using automated health care data to identify risks of marketed drugs and other medical products. The Observational Medical Outcomes Partnership is a public-private partnership among the FDA, academia, data own...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-153-9-201011020-00010
更新日期:2010-11-02 00:00:00
abstract:OBJECTIVE:To determine the role of B19 parvovirus in red cell aplasia of patients infected with human immunodeficiency virus type 1 (HIV-1). DESIGN:Uncontrolled clinical trial, with assay of serum, peripheral blood cells, and bone marrow for virus using DNA hybridization and immunocytochemistry techniques; these assay...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-113-12-926
更新日期:1990-12-15 00:00:00
abstract::Abdominal aortic aneurysms (AAAs) occur in 1 of 20 older men, remain asymptomatic for many years, and, if left untreated, cause death from rupture in about one third of patients. Ultrasonography is a suitable screening test for AAA, and elective repair can prevent rupture. Although these features suggest a promising t...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-139-6-200309160-00016
更新日期:2003-09-16 00:00:00
abstract:PURPOSE:Cost-utility analysis is a type of cost-effectiveness analysis in which health effects are measured in terms of quality-adjusted life-years (QALYs) gained. Such analyses have become popular for examining the health and economic consequences of health and medical interventions, and they have been recommended by ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-132-12-200006200-00007
更新日期:2000-06-20 00:00:00
abstract::A platelet transfusion from a blood group O donor, immunized 1 month before with Pneumovax, caused a hemolytic reaction in a blood group A recipient. Forty-five of 59 group O donors (76%) and all of nine group B donors immunized with Pneumovax had a fourfold or higher anti-A response. Half of the anti-A antibody in hi...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-96-5-580
更新日期:1982-05-01 00:00:00
abstract::Within 4 days, two oncology patients in the Clinical Research Unit had bacteremia causes by group Y Neisseria meningitidis. Three additional patients, identified by prevalence survey, were found to have nasopharyngeal colonization with that serogroup, compared with only one employee (not associated with patients) and ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-91-1-7
更新日期:1979-07-01 00:00:00
abstract::Hyperamylasemia, which has been reported in patients with the eating disorders anorexia nervosa and bulimia, generally has been thought to result from pancreatitis. To evaluate the mechanisms of hyperamylasemia, we measured amylase, lipase, and isoamylase activity in 17 consecutive patients admitted to the eating diso...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-106-1-50
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND:Preventive therapy is an important element of syphilis control efforts. No currently recommended, single-dose alternatives to penicillin G benzathine are available for treatment of incubating syphilis. OBJECTIVE:To evaluate the use of a single 1.0-g dose of azithromycin for treatment of persons recently exp...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-131-6-199909210-00007
更新日期:1999-09-21 00:00:00
abstract:BACKGROUND:The number of very elderly persons who are candidates for implantation of a permanent pacemaker is increasing, but the effect of cardiac pacing on long-term survival and functional variables has not been determined. OBJECTIVE:To determine long-term survival after implantation of a permanent pacemaker in oct...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-125-6-199609150-00008
更新日期:1996-09-15 00:00:00
abstract:BACKGROUND:Pretreatment antimicrobial resistance has an important impact on the efficacy of many Helicobacter pylori treatment regimens. OBJECTIVE:To estimate the prevalence of H. pylori resistance to antimicrobials in the United States, to characterize risk factors associated with H. pylori antimicrobial resistance, ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-136-1-200201010-00008
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:The news media are often criticized for exaggerated coverage of weak science. Press releases, a source of information for many journalists, might be a source of those exaggerations. OBJECTIVE:To characterize research press releases from academic medical centers. DESIGN:Content analysis. SETTING:Press rele...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-150-9-200905050-00007
更新日期:2009-05-05 00:00:00
abstract::The clinical significance of anatomic substage was assessed in 130 patients with Hodgkin's disease in pathologic stage III-A: stage III1-A includes involvement of spleen, or splenic, celiac, or portal nodes, or any combination of these; stage III2-A includes involvement of para-aortic, iliac, or mesenteric nodes, with...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-92-2-159
更新日期:1980-02-01 00:00:00
abstract:OBJECTIVE:To determine whether a cytogenetic response after interferon-alpha therapy in patients with chronic myelogenous leukemia is independently associated with improved survival. DESIGN:Retrospective analysis. PATIENTS:274 patients with a diagnosis of Philadelphia chromosome-positive chronic myelogenous leukemia ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-122-4-199502150-00003
更新日期:1995-02-15 00:00:00
abstract:BACKGROUND:Previous meta-analyses demonstrated that high-dose glucocorticoids were not beneficial in sepsis. Recently, lower-dose glucocorticoids have been studied. PURPOSE:To compare recent trials of glucocorticoids for sepsis with previous glucocorticoid trials. DATA SOURCES:Systematic MEDLINE search for studies pu...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析,评审
doi:10.7326/0003-4819-141-1-200407060-00014
更新日期:2004-07-06 00:00:00
abstract::Recently, antibodies to human T-cell leukemia virus membrane antigens (HTLV-MA) and elevated levels of beta 2-microglobulin and thymosin alpha 1 have been found with high frequency in patients with the acquired immunodeficiency syndrome. Prospective studies of asymptomatic persons at high risk for this syndrome will a...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-100-2-178
更新日期:1984-02-01 00:00:00
abstract:PURPOSE:To compare the diagnostic accuracy of computed tomography (CT) and positron emission tomography (PET) with 18-fluorodeoxyglucose (FDG) for mediastinal staging in patients with non-small-cell lung cancer and to determine whether test results are conditionally dependent (the sensitivity and specificity of FDG-PET...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析,评审
doi:10.7326/0003-4819-139-11-200311180-00013
更新日期:2003-12-02 00:00:00
abstract:BACKGROUND:National guidelines recommend that physicians discuss end-of-life (EOL) care planning with patients with cancer whose life expectancy is less than 1 year. OBJECTIVE:To evaluate the incidence of EOL care discussions for patients with stage IV lung or colorectal cancer and where, when, and with whom these dis...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-156-3-201202070-00008
更新日期:2012-02-07 00:00:00
abstract:BACKGROUND:It is unclear whether patients understand that percutaneous coronary intervention (PCI) reduces only chronic stable angina and not myocardial infarction (MI) or associated mortality. OBJECTIVE:To compare cardiologists' and patients' beliefs about PCI. DESIGN:Survey. SETTING:Academic center. PARTICIPANTS:...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-153-5-201009070-00005
更新日期:2010-09-07 00:00:00
abstract:PURPOSE:To review the current knowledge about breast cancer in black women--including epidemiology, risk factors, screening practices, pathology, clinical manifestations, treatment, and outcome--with emphasis on issues that might explain why the survival rate in this population of women is lower than that in white wome...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-124-10-199605150-00007
更新日期:1996-05-15 00:00:00
abstract::Thyroid antibodies were found significantly more often in insulin-dependent diabetics than in their spouses or in non-insulin-dependent diabetics. The poor correlation between presence of thyroid autoimmunity and duration of disease and the significantly increased prevalence of thyroid antibodies in first-degree relat...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-83-2-170
更新日期:1975-08-01 00:00:00