Abstract:
BACKGROUND:It has been reported that walnuts reduce serum cholesterol levels in normal young men. OBJECTIVE:To assess the acceptability of walnuts and their effects on serum lipid levels and low-density lipoprotein (LDL) oxidizability in free-living hypercholesterolemic persons. DESIGN:Randomized, crossover feeding trial. SETTING:Lipid clinic at a university hospital. PATIENTS:55 men and women (mean age, 56 years) with polygenic hypercholesterolemia. INTERVENTION:A cholesterol-lowering Mediterranean diet and a diet of similar energy and fat content in which walnuts replaced approximately 35% of the energy obtained from monounsaturated fat. Patients followed each diet for 6 weeks. MEASUREMENTS:Low-density lipoprotein fatty acids (to assess compliance), serum lipid levels, lipoprotein(a) levels, and LDL resistance to in vitro oxidative stress. RESULTS:49 persons completed the trial. The walnut diet was well tolerated. Planned and observed diets were closely matched. Compared with the Mediterranean diet, the walnut diet produced mean changes of -4.1% in total cholesterol level, -5.9% in LDL cholesterol level, and -6.2% in lipoprotein(a) level. The mean differences in the changes in serum lipid levels were -0.28 mmol/L (95% CI, -0.43 to -0.12 mmol/L) (-10.8 mg/dL [-16.8 to -4.8 mg/dL]) (P<0.001) for total cholesterol level, -0.29 mmol/L (CI, -0.41 to -0.15 mmol/L) (-11.2 mg/dL [-16.3 to -6.1 mg/dL]) (P<0.001) for LDL cholesterol level, and -0.021 g/L (CI, -0.042 to -0.001 g/L) (P = 0.042) for lipoprotein(a) level. Lipid changes were similar in men and women except for lipoprotein(a) levels, which decreased only in men. Low-density lipoprotein particles were enriched with polyunsaturated fatty acids from walnuts, but their resistance to oxidation was preserved. CONCLUSION:Substituting walnuts for part of the mono-unsaturated fat in a cholesterol-lowering Mediterranean diet further reduced total and LDL cholesterol levels in men and women with hypercholesterolemia.
journal_name
Ann Intern Medjournal_title
Annals of internal medicineauthors
Zambón D,Sabaté J,Muñoz S,Campero B,Casals E,Merlos M,Laguna JC,Ros Edoi
10.7326/0003-4819-132-7-200004040-00005subject
Has Abstractpub_date
2000-04-04 00:00:00pages
538-46issue
7eissn
0003-4819issn
1539-3704pii
200004040-00005journal_volume
132pub_type
临床试验,杂志文章,随机对照试验abstract:BACKGROUND:Thymectomy is standard therapy fornonthymomatousmyasthenia gravis despite the absence of randomized clinical trials (1). Myasthenia gravis is uncommonly reported in monozygous twins; disease concordance occurs in approximately one third of such identical twin pairs; and treatment for myasthenia gravis, when ...
journal_title:Annals of internal medicine
pub_type: 信件
doi:10.7326/0003-4819-155-7-201110040-00016
更新日期:2011-10-04 00:00:00
abstract::Infection with human immunodeficiency virus (HIV) may cause viral antigenemia, detected primarily as p24 viral core protein. Among 16 patients with the acquired immunodeficiency syndrome (AIDS) or AIDS-related complex studied serially, 12 had or developed antigenemia ranging from 16 to 3006 pg/mL in plasma. The level ...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-108-2-175
更新日期:1988-02-01 00:00:00
abstract:BACKGROUND:Left bundle-branch block (BBB) is considered an important predictor of poor outcome in patients with acute myocardial infarction, but the consequences of right BBB are not well understood. OBJECTIVES:To 1) estimate the prevalence of left and right BBB in patients with myocardial infarction; 2) compare the c...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-129-9-199811010-00003
更新日期:1998-11-01 00:00:00
abstract::Identical male twins had alveolar cell carcinoma with nearly synchronous onset and similar histopathologic features, both metastatic to the brain. The hypothesis is advanced that there are genes shared by these twins that determine not only the susceptibility of pulmonary cells to malignant transformation but also the...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-87-4-447
更新日期:1977-10-01 00:00:00
abstract::Wilson's disease is an inherited disorder of copper accumulation that is fatal if untreated. Because penicillamine, the established treatment, is toxic in a substantial number of patients, we studied the efficacy of zinc treatment. We induced a negative or neutral copper balance in five out of five patients with Wilso...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-99-3-314
更新日期:1983-09-01 00:00:00
abstract:BACKGROUND:The clinical significance of asymptomatic deep venous thrombosis that develops after joint arthroplasty and the value of screening tests to detect thrombi are uncertain. OBJECTIVES:To determine 1) the rate of symptomatic deep venous thrombosis or pulmonary embolism occurring after hospitalization for joint ...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-127-6-199709150-00004
更新日期:1997-09-15 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::Enlargement of the pituitary gland associated with primary hypothyroidism was observed in two patients. Serum thyroid-stimulating hormone (TSH) concentration and the TSH response to thyrotropin-releasing hormone were increased in both. Other pituitary function tests were subnormal in both patients, suggesting that a t...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-85-2-195
更新日期:1976-08-01 00:00:00
abstract:OBJECTIVE:To determine the effect of the presence of a patent foramen ovale on the right-to-left shunt in patients with respiratory failure who receive positive end-expiratory pressure (PEEP). DESIGN:Convenience sample with randomized application of PEEP. SETTING:General intensive care unit of a university teaching h...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-119-9-199311010-00004
更新日期:1993-11-01 00:00:00
abstract:PURPOSE:To review the available data on the treatment of chronic stable angina and formulate a rational approach to the use of pharmacologic therapy, percutaneous transluminal coronary angioplasty (PTCA), and coronary artery bypass graft surgery (CABG). DATA SOURCES:A MEDLINE search of English-language literature publ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-128-3-199802010-00008
更新日期:1998-02-01 00:00:00
abstract:BACKGROUND:Apolipoprotein E (apoE) genotypes play critical roles in lipid metabolism and are believed to influence risk for coronary heart disease (CHD). Despite many population studies, however, the impact of apoE polymorphism on risk for CHD remains uncertain. PURPOSE:To qualitatively and quantitatively assess the e...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-141-2-200407200-00013
更新日期:2004-07-20 00:00:00
abstract::In studies of the cause of gastrointestinal symptoms in homosexual men, Campylobacter jejuni was recovered from 10 of 158 men with, and 2 of 75 men without, intestinal symptoms. In addition, a heterogeneous group of Campylobacter-like organisms was identified in 26 symptomatic and 6 asymptomatic homosexual men, but in...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-101-2-187
更新日期:1984-08-01 00:00:00
abstract:OBJECTIVE:To determine whether a noninvasive method for evaluating contrast-enhancing brain lesions in patients with the acquired immunodeficiency syndrome (AIDS) can accurately differentiate between lymphoma and nonlymphoma diagnoses. This method is based on Toxoplasma serologic testing and positron emission tomograph...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-123-8-199510150-00005
更新日期:1995-10-15 00:00:00
abstract:OBJECTIVE:To determine the following: a reference range for serum calcitriol during hypercalcemia in a control group of patients with myeloma in whom calcitriol production is known to be appropriately suppressed; the incidence of elevated serum calcitriol levels in hypercalcemic patients with non-Hodgkin lymphoma accor...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-121-9-199411010-00001
更新日期:1994-11-01 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:OBJECTIVE:To appraise the measurement properties of the Canadian Cardiovascular Society (CCS) classification of stable angina pectoris. DATA SOURCES:Relevant articles were identified through a MEDLINE search (1976 to November 1991). Bibliographies of retrieved articles were also reviewed. STUDY SELECTION:Studies chos...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-117-8-677
更新日期:1992-10-15 00:00:00
abstract::A group of 44 homosexual patients with immune thrombocytopenia and serologic evidence of infection with the human immunodeficiency virus (HIV) was observed for a total of 844 person-months. The risk of developing the acquired immunodeficiency syndrome (AIDS), an actuarial incidence of 36.5% in 37 months, was no differ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-106-3-383
更新日期:1987-03-01 00:00:00
abstract:BACKGROUND:Studies suggest that vitamin D supplementation may reduce cancer and fracture risks. PURPOSE:To examine the benefits and harms of vitamin D with or without calcium supplementation on clinical outcomes of cancer and fractures in adults. DATA SOURCES:English-language studies identified from MEDLINE and the C...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析,评审
doi:10.7326/0003-4819-155-12-201112200-00005
更新日期:2011-12-20 00:00:00
abstract::Electrophysiologic studies were done in 32 patients with aortic stenosis. In 24 patients with intact A-V conduction, A-H intervals ranged from 55 to 145 msec and were prolonged in two. Two had split His bundle potentials. The H-V intervals ranged from 25 to 94 msec and were prolonged in 12. The mean H-V interval was 6...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-87-3-275
更新日期:1977-09-01 00:00:00
abstract:Description:Recommendation on screening for urinary incontinence in women by the Women's Preventive Services Initiative (WPSI), a national coalition of women's health professional organizations and patient representatives. The WPSI's recommendations are intended to guide clinical practice and coverage of services for t...
journal_title:Annals of internal medicine
pub_type: 杂志文章,实务指引
doi:10.7326/M18-0595
更新日期:2018-09-04 00:00:00
abstract:BACKGROUND:Hypertension often persists after adrenalectomy for primary aldosteronism. OBJECTIVE:To determine factors associated with resolution of hypertension after adrenalectomy for primary aldosteronism. DESIGN:Retrospective cohort study. SETTING:Tertiary care referral center in Rochester, Minnesota. PATIENTS:Al...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-135-4-200108210-00010
更新日期:2001-08-21 00:00:00
abstract:STUDY OBJECTIVE:To critically assess original studies evaluating the role of preoperative pulmonary function testing in predicting postoperative outcomes. DESIGN:MEDLINE search of English-language articles from 1966 to 1987 using the following medical subjects headings respiratory function tests, lung, lung diseases, ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-112-10-763
更新日期:1990-05-15 00:00:00
abstract::We prospectively studied the evaluation of dementia in 107 unselected outpatients; 83 had so-called "irreversible" dementias, including 74 who had an Alzheimer-type dementia. Fifteen patients had potentially reversible dementias, of which hypothyroidism and drug toxicity were the commonest causes. Distinguishing featu...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-100-3-417
更新日期:1984-03-01 00:00:00
abstract:BACKGROUND:Recent evidence shows that arthroscopic partial meniscectomy (APM) offers no benefit over conservative treatment of patients with a degenerative meniscus tear. However, patients who report mechanical symptoms (sensations of knee catching or locking) may benefit from APM. OBJECTIVE:To assess whether APM impr...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.7326/M15-0899
更新日期:2016-04-05 00:00:00
abstract:DESCRIPTION:This guideline is an official statement of the American College of Physicians (ACP), American College of Chest Physicians (ACCP), American Thoracic Society (ATS), and European Respiratory Society (ERS). It represents an update of the 2007 ACP clinical practice guideline on diagnosis and management of stable...
journal_title:Annals of internal medicine
pub_type: 杂志文章,实务指引
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更新日期:2011-08-02 00:00:00
abstract:BACKGROUND:Although some studies suggest that access to cardiac procedures may differ by sex, others have found no evidence of gender bias in cardiac care. OBJECTIVE:To study rates of percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG) surgery in men and women after cardiac catheterization....
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-136-10-200205210-00007
更新日期:2002-05-21 00:00:00
abstract::Subjects (109) with symptomatic Paget's disease of bone were treated with 5, 10, or 20 mg of sodium etidronate (EHDP)/kg body weight - day for 6 to 24 months. Significant decreases in serum alkaline phosphatase and urinary hydroxyproline were noted after 6 months of therapy; no significant further improvement resulted...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-87-6-656
更新日期:1977-12-01 00:00:00
abstract::A case of a patient with metastatic cancer raises the issues of patient refusal of treatment, euthanasia, and unintended side effects of therapy. For each management dilemma, there are relevant ethical and legal considerations, justifications, and conclusions. In addition, psychological and social influences on the de...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:
更新日期:1980-01-01 00:00:00
abstract:STUDY OBJECTIVE:To assess respiratory muscle fatigue in acute respiratory failure in patients with chronic obstructive pulmonary disease and evaluate its influence on weaning patients from mechanical ventilation. DESIGN AND PATIENTS:We studied the time course of tracheal occlusion pressure (P0.1) and high-to-low ratio...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-108-6-800
更新日期:1988-06-01 00:00:00
abstract::Antibiotic-associated diarrhea and colitis were well established soon after antibiotics became available. Early work implicated Staphylococcus aureus, but in 1978 Clostridium difficile became the established pathogen in the vast majority of cases. In the first 5 years (1978 through 1983), the most common cause was cli...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-145-10-200611210-00008
更新日期:2006-11-21 00:00:00