Abstract：
BACKGROUND:Exercise duration of constant-load endurance tests has been recently demonstrated to be more sensitive in detecting the changes after bronchodilator administration than either walking distance or peak oxygen uptake in patients with COPD. In the present study, we questioned whether exercise duration of progressive load is better correlated with forced expiratory volume in 1 sec and inspiratory capacity than other indices of submaximal exercise test during stable period in patients with COPD. METHODS:Thirty-three stable COPD patients, and 26 age- and BMI-matched control subjects were recruited. Resting pulmonary function tests and incremental cycle exercise tests were performed. All indices of exercise and pulmonary function tests including exercise duration, peak oxygen uptake (VO(2peak)), and forced expiratory volume in 1 sec (FEV(1)) were recorded. RESULTS:Exercise capacity was lower in COPD than age- and BMI-matched controls as shown by exercise duration and ergometric work (535 +/- 159 vs. 705 +/- 115 sec, p <0.001 and 89.2 +/- 26.6 vs. 117.8 +/- 19.5 W, p <0.001). Statistical analysis revealed that exercise duration slightly better correlates with FEV(1) and inspiration capacity (IC) (R = 0.600, p <0.001; R = 0.615, p <0.001) than peak oxygen uptake (R = 0.284, p >0.05; R = 0.127, p >0.05) in stable period COPD patients. CONCLUSIONS:There is an impairment of aerobic capacity in stable period COPD patients compared to healthy controls. Exercise in COPD patients is ventilation-limited and exercise duration with respect to peak VO(2) is better correlated with FEV(1) and IC in stable COPD patients undergoing progressive-load cycling exercise.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Metin G,Oztürk L,Duman ES,Demir Tdoi
10.1016/j.arcmed.2007.02.004subject
Has Abstractpub_date
2007-11-01 00:00:00pages
876-81issue
8eissn
0188-4409issn
1873-5487pii
S0188-4409(07)00111-7journal_volume
38pub_type
杂志文章abstract：BACKGROUND:The aim of the present study was to determine whether newborn birth weights were associated with insulin-like growth factor I (IGF-I), zinc, and leptin in preeclamptic and normotensive pregnancies. METHODS:This study was done cross-sectionally and included 15 women with moderate preeclampsia (PE group) and ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(01)00364-2
更新日期：2002-01-01 00:00:00
abstract：BACKGROUND:The diuretic response has been shown to be a robust independent marker of cardiovascular outcomes in acute heart failure (ADHF) patients. The objectives of this clinical research, will aim are to: a) include diuresis in the formula for diuretic response (R-to-D); b) add to R-to-D the value of a pre-discharge...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2018.08.007
更新日期：2018-04-01 00:00:00
abstract：:Atherosclerosis together with multiple sclerosis, psoriasis and rheumatoid arthritis can be used as examples of chronic inflammatory diseases associated with multifactorial components that evolve over the years. Nevertheless, an important difference between these diseases relies on the fact that atherosclerosis develo...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2015.06.004
更新日期：2015-07-01 00:00:00
abstract：BACKGROUND:This investigation was undertaken to study the clinical characteristics and the humoral immune pattern in lymphedema patients undergoing O-beta-hydroxy-ethyl rutoside therapy. METHODS:A complete physical examination was performed on 27 lymphedema patients (postmastectomy and postphlebitis) and 17 healthy co...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(00)00272-1
更新日期：2001-03-01 00:00:00
abstract：BACKGROUND:The human multidrug-resistant gene (MDR1) encodes P-glycoprotein (Pgp), a membrane-bound efflux transporter conferring resistance to a number of natural cytotoxic drugs and potentially toxic xenobiotics. Single-nucleotide polymorphisms (SNPs) in MDR1 gene are associated with phenotypic variation in Pgp expre...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2007.02.005
更新日期：2007-07-01 00:00:00
abstract：:Cervical cancer (CC) is one of the principal public health problems in Mexico. The national mortality rate due to CC was estimated at 21.8 per 100,000 among women over 15 years old during 1994. Despite this high incidence little is known in Mexico about the risk factors for CC. The objectives of the study were to eval...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：BACKGROUND:Coronary artery disease is the significant cause of morbidity and mortality today. The treatment of coronary artery disease is improving, but its prevalence is increasing. Both primary and secondary prevention measures are of vital importance. METHODS:In this study, vitamin C, total antioxidant status, malo...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(01)00381-2
更新日期：2002-05-01 00:00:00
abstract：BACKGROUND AND AIMS:In previous studies, the Pro12Ala polymorphism in the peroxisome proliferator-activated receptor gamma 2 (PPAR-γ2) was shown to be associated with both lipid metabolism and longevity. We examined whether the polymorphism continued to be associated with abnormal levels of serum lipid/lipoprotein amon...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2011.09.010
更新日期：2011-10-01 00:00:00
abstract：:To determine the effects of a vegetarian diet with avocado as a source of monounsaturated fat on serum lipids, thirteen patients with phenotype II (twelve with IIa and one with IIb) dyslipidemia were included in a prospective, transversal and comparative study in which three four-week diets randomly assigned were asse...
journal_title：Archives of medical research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1997-01-01 00:00:00
abstract：:Immunity in leishmaniasis is mediated by T cells, but protective responses in humans have not been fully defined. In this study, the functional activity of CD4+ T cell clones derived from an immune individual was investigated to identify potentially protective responses. The T cells proliferated and produced interfero...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:The function of the calcium-sensing receptor (CaSR) is to maintain serum calcium concentration within a narrow physiological range. Two types of mutations have been described: activating that causes hypocalcemia and inactivating, which leads to hypercalcemia. The objective was to assess the effect of CaSR ge...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2005.11.009
更新日期：2006-07-01 00:00:00
abstract：BACKGROUND:Urinalysis is one of the most common studies performed on the diabetic patient at every visit. The presence of leukocyturia is relatively common but it is not clear what the attitude of the physician toward this particular finding should be. The main objective of the present study was to investigate the clin...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(00)00072-2
更新日期：2000-03-01 00:00:00
abstract：:Glutamate neurotransmitter action on postsynaptic receptors is terminated by its clearance from the synaptic cleft by transporter proteins located in neurons and glial cells. Failure of glutamate removal can lead to neuronal death due to its well-known neurotoxic properties. Glutamate transporters are dependent on ext...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2005.05.014
更新日期：2006-01-01 00:00:00
abstract：BACKGROUND:Mexico has a high prevalence of short stature (SS) population; thus, body mass index (BMI) criteria for diagnosis of obesity should be different from that in a tall stature (TS) population. The aim of this study was to determine whether SS at the same BMI would have greater body fat mass than those with TS. ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/S0188-4409(03)00002-X
更新日期：2003-03-01 00:00:00
abstract：:The objective of the study was to identify the patterns of recurrence in patients with squamous cell carcinoma of the anal canal (SCCAC) vs. the size of the primary tumor and its further possible impact on its treatment outcome. We reviewed 78 patients treated between 1975 to 1991. They were classified according to to...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：
更新日期：1995-10-01 00:00:00
abstract：:Implantation is a complex spatio-temporal interaction between the genotypically different embryo and the mother. Success of this event requires the synchronization of development and effective biochemical communications from both sides. Chorionic gonadotropin (CG), which is a major embryonic signal in the primate, is ...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/s0188-4409(01)00330-7
更新日期：2001-11-01 00:00:00
abstract：:E. histolytica, pathogenic, and E. dispar, non-pathogenic, being morphologically identical are, when recovered as cysts in feces, diagnosed as E. histolytica. A survey on The Seychelles demonstrated that when culture and zymodeme characterization was used to compare against microscopy alone, the risk of overdiagnosis ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:Systems biology and the Herbalome Project have good prospects if the specific episteme-method approach of traditional Chinese medicine (TCM) is taken into serious consideration. TCM takes advantage of a specific holistic method, which is based on the episteme method approach derived from the conceptions of unceasing m...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2008.09.006
更新日期：2009-01-01 00:00:00
abstract：BACKGROUND:The J wave has been seen in idiopathic ventricular fibrillation, Brugada syndrome, and early repolarization syndrome. Although these conditions share some ECG features, the clinical consequences are markedly different. J wave presentation in healthy subjects is not a rare phenomenon, although its characteris...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2007.08.006
更新日期：2008-02-01 00:00:00
abstract：OBJECTIVE:The aim of the study was to analyze, using a decision analysis approach, the probability of severity of illness due to delayed utilization of health services and inappropriate hospital medical treatment during the 2009 AH1N1 influenza epidemic in Mexico. METHODS:Patients with influenza AH1N1 confirmed by the...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2017.06.007
更新日期：2017-04-01 00:00:00
abstract：:Type 2 diabetes (T2D) is a complex disease caused by the interaction of genetic and environmental factors. In this regard, it has been demonstrated that Hispanics have a greater susceptibility to developing complex diseases like T2D, which has been attributed to their Amerindian component. Mexico has a wide population...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2016.12.007
更新日期：2016-10-01 00:00:00
abstract：BACKGROUND AND AIMS:Peroxisome proliferator activated receptor-gamma (PPARgamma) and lipoprotein lipase (LPL) genes are important in pathways of triglyceride metabolism, insulin resistance and adipogenesis. We hypothesized that polymorphisms of PPARgamma Pro12Ala, LPL HindIII and LPL Ser447X influence severity of coron...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2010.01.005
更新日期：2010-01-01 00:00:00
abstract：BACKGROUND:Interleukin-19 (IL-19) has been shown to be involved in coronary artery diseases and atherosclerosis, while its expression in myocardial infarction is poorly understood. In this study, the dynamic increase in circulating IL-19 in acute ST-segment elevation myocardial infarction (STEMI) patients was detected....
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2020.01.007
更新日期：2020-02-01 00:00:00
abstract：BACKGROUND:The apolipoprotein E-deficient mouse (ApoE) spontaneously develops hypercholesterolemia and atherosclerotic lesions in large arteries. It is also known that angiotensin II-induced hypertension accelerates the development of atherosclerosis in ApoE mice. The objective of this study was to evaluate the aortic ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2007.06.005
更新日期：2007-11-01 00:00:00
abstract：BACKGROUND:Our objective was to determine the main factors associated with increased utilization of a cervical cancer screening program (CCSP) in a population with a high mortality rate due to cervical cancer. METHODS:A population-based study was carried out in the Mexican state of Morelos, Mexico. The study populatio...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(01)00362-9
更新日期：2002-03-01 00:00:00
abstract：BACKGROUND:The main objectives in this work were to determine whether the relationship between serum testosterone concentration and electroencephalography (EEG) develop mental change observed in human males is also present in Macaca mulatta and, if so, to determine which frequency bands are involved and which regions c...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2004.06.003
更新日期：2004-09-01 00:00:00
abstract：BACKGROUND:It is well documented that Giardia duodenalis undergoes surface antigenic variation both in vivo and in vitro. Proteins involved have been characterized and referred to as VSP (variable surface protein). METHODS:Two cloned cDNA inserts of 0.45 and 1.95 kb were obtained from G. duodenalis expression library ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2003.12.005
更新日期：2004-05-01 00:00:00
abstract：:Clinical research in Internal Medicine has provided many scientific advances during the past few years. However, the newly generated information overrides the time available to read all of the medical literature regarding advances in Internal Medicine. The goal of this review is to summarize some of the most relevant ...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:It remains unclear whether the activation of kappa-opioid receptors has strong hypotensive effects under hypertensive condition, and the underlying mechanisms have not yet been investigated. Therefore, the present study is designed to use spontaneously hypertensive rats (SHR) to investigate the effects of a ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2007.04.009
更新日期：2007-10-01 00:00:00
abstract：BACKGROUND:Quinolone-induced mutagenesis in the Salmonella typhimurium hisG48 strains suggests that these antibiotics are oxygen free radical generators. The use of beta-carotene as antioxidant was evaluated as an alternative to reduce oxidative cell damage in patients who need therapy with nalidixic acid, norfloxacin,...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(00)00046-1
更新日期：2000-03-01 00:00:00
