Abstract:
:The 1950s witnessed prodigious growth in our knowledge of the chemical nature of the gene, the mechanisms by which the information inherent in its sequence of nucleotide units was conveyed to the cell's machinery for synthesizing proteins, and the mode of operation of that machinery. Watson and Crick raised the curtain by revealing the structure of DNA, notably the complementary pairing of the nucleotides in its twin chains. Identified with the new field of molecular biology, Crick defined and expanded the field of genetic information coding and led attempts to elucidate principles governing information translation into protein. On a parallel and complementary track, biochemists-notably the group led by Paul Zamecnik-were working out the details of the mechanism of protein synthesis: how and where in the cell amino acids were energized, sequenced, and polymerized. These two approaches to closely related problems, separated by a considerable cultural gap, merged dramatically in 1956. Crick's thinking led him to postulate the existence of adaptors -short chains of RNA nucleotide bases that, when linked to amino acids, might make the latter chemically "recognizable" to an RNA template by complementary pairing of their bases with those of the template. Simultaneously, the Zamecnik group discovered enzymes (amino acyl-tRNA synthetases) capable of energizing amino acids and, thence, attaching them to a hitherto unsuspected cellular RNA (transfer RNA). These RNA molecules, in turn, donated their bound amino acids to elongating protein chains on ribosomes, thus appearing to serve the function of adaptors.
journal_name
Ann Intern Medjournal_title
Annals of internal medicineauthors
Hoagland MBdoi
10.7326/0003-4819-138-7-200304010-00016subject
Has Abstractpub_date
2003-04-01 00:00:00pages
583-6issue
7eissn
0003-4819issn
1539-3704pii
200304010-00016journal_volume
138pub_type
评论,历史文章,杂志文章abstract:BACKGROUND:AL amyloidosis is a fatal disease resulting from tissue deposition of amyloid fibrils derived from monoclonal immunoglobulin light chains. Treatment with oral chemotherapy is minimally effective. OBJECTIVE:To test survival and organ response in a large sample of patients treated with high-dose intravenous m...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-140-2-200401200-00008
更新日期:2004-01-20 00:00:00
abstract:OBJECTIVE:To determine if polyvalent IgG is promising therapy for severe IgG nephropathy. DESIGN:Open prospective cohort study. SETTING:Referral nephrology unit. PATIENTS:11 adult patients with severe IgA nephropathy (9 who had idiopathic disease and 2 who had Henoch-Schönlein purpura) and indicators of poor prognos...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-120-6-199403150-00005
更新日期:1994-03-15 00:00:00
abstract::This issue provides a clinical overview of sickle cell disease focusing on prevention, diagnosis, treatment, practice improvement, and patient information. Readers can complete the accompanying CME quiz for 1.5 credits. Only ACP members and individual subscribers can access the electronic features of In the Clinic. No...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-155-5-201109060-01003
更新日期:2011-09-06 00:00:00
abstract:OBJECTIVE:To assess the efficacy and toxicity of moricizine in treating patients with serious ventricular arrhythmias and inducible sustained ventricular tachycardia. DESIGN:Uncontrolled clinical trial. SETTING:The intensive care and telemetry units of Northwestern Memorial Hospital, St. Francis Hospital and Medical ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-116-5-375
更新日期:1992-03-01 00:00:00
abstract::Internal medicine residencies risk becoming obsolete if they are not adjusted to changing patterns of medical practice. Declining length of hospital stay, increased intensity of hospital care, movement of critical management decisions to outpatient settings, increased proportions of admissions for specific diagnostic ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-104-4-554
更新日期:1986-04-01 00:00:00
abstract:OBJECTIVE:To determine whether diabetic patients, when compared with nondiabetic patients, have a higher incidence of restenosis after coronary stenting, and, if so, whether restenosis is attributable to lesion or procedural differences or to a greater biologic tendency for late loss of minimum diameter in diabetic pat...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究
doi:10.7326/0003-4819-118-5-199303010-00004
更新日期:1993-03-01 00:00:00
abstract::Immediately after the liberation of Kuwait by a coalition of allied forces in March 1991, representatives of Physicians for Human Rights traveled to Kuwait and conducted an inquiry into human rights violations allegedly perpetrated by Iraqi forces. The inquiry focused on the abuses that were said to have occurred in h...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-117-1-78
更新日期:1992-07-01 00:00:00
abstract::Relapsing polychondritis, an uncommon, chronic, multisystem disorder characterized by recurrent episodes of inflammation of cartilaginous tissues, can be life-threatening, debilitating, and difficult to diagnose. This review is based on the authors' experience with 36 patients with relapsing polychondritis who were fo...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-129-2-199807150-00011
更新日期:1998-07-15 00:00:00
abstract::To understand the factors that distinguish terminally ill, incompetent patients who are given do-not-resuscitate status by physicians against the wishes of the patient's family, I reviewed the charts of 20 such patients (cases) seen in consultation by the ethics committee at the Massachusetts General Hospital over 10 ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-109-10-819
更新日期:1988-11-15 00:00:00
abstract:BACKGROUND:Physical activity has been related to enhanced bone mass and improved physical functioning and thus may reduce the risk for osteoporotic fracture. OBJECTIVE:To determine whether higher levels of physical activity are related to lower incidence of hip, wrist, and vertebral fractures. DESIGN:Prospective coho...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-129-2-199807150-00002
更新日期:1998-07-15 00:00:00
abstract:BACKGROUND:Rheumatoid arthritis is associated with increased morbidity and mortality because of cardiovascular disease, independent of traditional risk factors. OBJECTIVE:To determine the prevalence of preclinical atherosclerosis in patients with rheumatoid arthritis and to identify clinical and biological markers for...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-144-4-200602210-00006
更新日期:2006-02-21 00:00:00
abstract::A patient with bladder carcinoma metastatic to lung and brain died of pneumonia. Autopsy examination showed a confluent bronchopneumonia with several small abscesses and acute pyelonephritis with abscess formation. Legionella pneumophila, serogroup 4, was isolated in pure culture from lung tissue postmortem and was al...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-93-6-835
更新日期:1980-12-01 00:00:00
abstract::Given the low mortality and morbidity of the severe acute respiratory syndrome (SARS) compared with other public health scourges, is the attention devoted to it misdirected? The SARS experience has provided at least 4 enduring lessons. First, by providing a test of the capacity of each part of the public health system...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-139-7-200310070-00011
更新日期:2003-10-07 00:00:00
abstract:Background:Probiotics, prebiotics, and synbiotics are used increasingly, although the safety and potential harms of these interventions are poorly understood. Purpose:To examine how harms-related information is reported in publications of randomized controlled trials (RCTs) of probiotics, prebiotics, and synbiotics. ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/M18-0343
更新日期:2018-08-21 00:00:00
abstract:BACKGROUND:The accuracy and harms of brief cognitive tests for identifying clinical Alzheimer-type dementia (CATD) are uncertain. PURPOSE:To summarize evidence on accuracy and harms of brief cognitive tests for CATD in older adults with suspected cognitive impairment. DATA SOURCES:Electronic bibliographic databases (...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/M19-3889
更新日期:2020-05-19 00:00:00
abstract:BACKGROUND:Despite advances in prevention and treatment, sexually transmitted infections (STIs) remain an important cause of morbidity and mortality in the United States. PURPOSE:To systematically review the evidence for behavioral counseling interventions to prevent STIs in adolescents and adults (nonpregnant and pre...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-149-7-200810070-00011
更新日期:2008-10-07 00:00:00
abstract::Since 1969, medications have been provided to patients at the Johns Hopkins Hospital using a computer system that controls the entire medication process from entry of physician's order to hourly drug distribution. Special envelopes containing patient and dosage information are computer generated for each dose to be ad...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-83-3-342
更新日期:1975-09-01 00:00:00
abstract:BACKGROUND:Severe aplastic anemia is a life-threatening bone marrow failure disorder. High-dose cyclophosphamide therapy followed by allogeneic bone marrow transplantation cures the disease. However, it requires a suitable donor and carries the risk for graft-versus-host disease. A small pilot study demonstrated that h...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,多中心研究
doi:10.7326/0003-4819-135-7-200110020-00006
更新日期:2001-10-02 00:00:00
abstract::Prothrombin complex concentrates are used in the treatment of the congenital bleeding disorders associated with Factors II, VII, IX, and X deficiencies. They have also been extensively used to treat acquired coagulation abnormalities secondary to vitamin K deficiency, warfarin ingestion, and various types of liver dis...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-84-6-683
更新日期:1976-06-01 00:00:00
abstract:BACKGROUND:Ear involvement is not unusual in autoimmune diseases, but few data on this problem in the Sjögren syndrome are available. OBJECTIVES:To determine whether the incidence of hearing loss is increased in patients with the Sjögren syndrome and to determine what factors might be involved in the pathogenesis of S...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-126-6-199703150-00005
更新日期:1997-03-15 00:00:00
abstract:OBJECTIVE:To describe the diagnostic difficulties, response to therapy, and clinical features of lymphomatoid papulosis and the cumulative frequency of transformation to lymphoma. DESIGN:Case series. SETTING:University hospitals. METHODS:The records of 21 patients with lymphomatoid papulosis who were seen from 1986 ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-122-3-199502010-00009
更新日期:1995-02-01 00:00:00
abstract:BACKGROUND:Initiation of antiretroviral therapy (ART) during tuberculosis (TB) treatment remains challenging. PURPOSE:To assess evidence from randomized, controlled trials of the timing of ART initiation in HIV-infected adults with newly diagnosed pulmonary TB. DATA SOURCES:PubMed, EMBASE, Cochrane Central Register o...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析,评审
doi:10.7326/M14-2979
更新日期:2015-07-07 00:00:00
abstract::Glomerular-fixed antibody was eluted from the kidney of a 17-year-old patient who died 2 weeks after the onset of acute poststreptococcal glomerulonephritis. Elevated titers of antibodies to streptococcal enzymes were found in the serum but not in the glomerular eluate. Streptococcal M protein and anti-M protein react...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-92-4-478
更新日期:1980-04-01 00:00:00
abstract:BACKGROUND:Short-term aspirin therapy can lower the risk for venous thromboembolism (VTE) in high-risk patients, but whether the long-term use of low-dose aspirin reduces risk in healthy adults is uncertain. OBJECTIVE:To test the efficacy of long-term aspirin therapy for preventing VTE. DESIGN:Secondary analysis of a...
journal_title:Annals of internal medicine
pub_type: 杂志文章,随机对照试验
doi:10.7326/0003-4819-147-8-200710160-00004
更新日期:2007-10-16 00:00:00
abstract::In two patients with thyroiditis caused by Coccidioides immitis, presented thyroid symptoms and findings were characteristic of subacute thyroiditis. Fine needle aspiration biopsy of the thyroid proved useful in establishing the diagnosis of coccidioidomycosis. This is the first report of coccidioidomycosis presenting...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-91-3-409
更新日期:1979-09-01 00:00:00
abstract:BACKGROUND:Exercise stress testing in patients with abdominal aortic aneurysms may cause enlargement or rupture of aneurysms. OBJECTIVE:To evaluate the safety of treadmill exercise stress testing in patients with abdominal aortic aneurysms. DESIGN:Retrospective descriptive study. SETTING:Tertiary care center. PATIE...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-129-8-199810150-00008
更新日期:1998-10-15 00:00:00
abstract:BACKGROUND:With suspected deep venous thrombosis and normal results on proximal vein ultrasonography, a negative d-dimer result may exclude thrombosis and a positive D-dimer result may be an indication for venography. OBJECTIVE:To evaluate and compare the safety of 2 diagnostic strategies for deep venous thrombosis. ...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.7326/0003-4819-142-7-200504050-00007
更新日期:2005-04-05 00:00:00
abstract::Two patients with profound decrease of alpha1-antitrypsin (PiZZ) presented with severe pannicultis (Weber-Christian disease); one had systemic panniculitis including pancreatitis. Another possible case is quoted from the literature. Although milder forms of panniculitis can have normal Pi phenotypes and alpha1-antitry...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-86-6-742
更新日期:1977-06-01 00:00:00
abstract::Eighteen episodes of community-acquired bacterial pneumonia were diagnosed in 13 patients among 336 with the acquired immunodeficiency syndrome (AIDS) cared for at Memorial Sloan-Kettering Cancer Center since 1979. Bacterial pathogens isolated in 16 of 18 episodes were Haemophilus influenzae in 8, Streptococcus pneumo...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-104-1-38
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:The established International Prognostic Index for lymphomas has not included patients with systemic AIDS-related non-Hodgkin lymphoma. OBJECTIVE:To establish the most appropriate prognostic index for use in patients with systemic AIDS-related non-Hodgkin lymphoma. DESIGN:A prospective study involving univ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-143-4-200508160-00007
更新日期:2005-08-16 00:00:00