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 interferon-gamma (IFN-gamma) in response to a soluble Leishmania donovani antigen extract and live amastigotes. There was considerable variation in the anti-leishmanial activity of the T cell clones when they were co-cultured with L. donovani infected monocytes isolated from an HLA-DR,DQ matched donor. All of the clones which demonstrated antigen specific reactivity by proliferation or cytokine production induced some degree of inhibition of intracellular parasite replication, but only a few of the clones induced pronounced leishmanicidal activity. There was strong correlation between the level of amastigote-induced IFN-gamma secretion and anti-leishmanial activity. This approach enables the identification of potentially protective immune responses in humans at the clonal level, and offers a means for the identification of the relevant antigen(s).
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Melby PC,Valencia-Pacheco G,Andrade-Narváez Fsubject
Has Abstractpub_date
1996-01-01 00:00:00pages
473-9issue
4eissn
0188-4409issn
1873-5487journal_volume
27pub_type
杂志文章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:BACKGROUND:During congestive heart failure, desensitization of beta-adrenoceptors is related to a lower adrenergic responsiveness in the heart; little is known about alpha 1-adrenoceptors in the vasculature under this condition. We evaluated alpha 1D-adrenoceptor response in aorta and carotid arteries in a model of con...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/s0188-0128(99)00033-0
更新日期:1999-07-01 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::The expression of neurodegenerative diseases can be categorized into three main symptomatic domains: neurological, cognitive and, neuropsychiatric. This review focuses on the cognitive profile and neuropsychological assessment of Alzheimer's disease (AD). The topography and progression of brain neuropathology determin...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2012.08.015
更新日期:2012-11-01 00:00:00
abstract::Amebic liver abscess (ALA) is associated with a state of transient suppression of cell-mediated immunity (CMI). T4 helper-inducer cell number is reported to be reduced. However, little is known of the reason for such reduction. Adenosine deaminase (ADA), an enzyme of salvage pathway in purine metabolism, is reported t...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1993-07-01 00:00:00
abstract:BACKGROUND AND AIMS:Metabolic acidosis (MA) is a frequent and serious complication in HIV-infected patients. The aim of the study is to compare patients with and without MA associated with HIV. METHODS:Patients were retrospectively studied involving all HIV-infected patients with blood gas analysis performed during ho...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2008.12.004
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND AND AIMS:An increasing number of studies have been published concerning meeting targets of clinical guidelines for different aspects of the diagnosis and treatment of patients with end-stage renal disease. Most of these studies have shown that guideline recommendations are not always satisfied, and results o...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2013.01.008
更新日期:2013-04-01 00:00:00
abstract::Diabetes mellitus type II, a cause of preclinical left ventricular dysfunction that can progress to cardiac insufficiency ventricular dysfunction in diabetic patients, is attributed to systemic arterial hypertension, or ischemic cardiopathy. Diastolic ventricular dysfunction takes place during the course of diabetes m...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/s0188-4409(00)00264-2
更新日期:2001-01-01 00:00:00
abstract:OBJECT:Astragaloside IV (AS IV) has antioxidative and anti-apoptotic properties, however, its effects on juvenile mice with diabetic ketoacidosis (DKA) have not been determined. This study aims to explore the effect and mechanism of Astragaloside IV (AS-IV) on juvenile mice with DKA. METHODS:DKA model was established ...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2020.06.013
更新日期:2020-10-01 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::The pathological sequence for type 2 diabetes is complex and entails many different elements that act in concert to cause that disease. This review proposes a sequence of events and how they interact by a careful analysis of the human and animal model literature. A genetic predisposition must exist, although to date v...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2005.01.003
更新日期:2005-05-01 00:00:00
abstract::In contrast to the prophylactic HPV vaccines that exhibit great promise in reducing the burden of cervical cancer, there is limited progress towards the development of immune therapeutic strategies that would help those women who are already infected with high-risk HPV and do not benefit from the current vaccines. The...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2009.07.003
更新日期:2009-08-01 00:00:00
abstract::We report a study on the DNA organization in Entamoeba histolytica using a ribosomal DNA probe. The rDNA genes were found forming mers which were separated in a typical ladder pattern by pulse field electrophoresis. DNA rosette structures were visualized through electron microscopy in DNA eluted from bands recognized ...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract::Reports on simultaneous central and peripheral nervous system involvement in a patient with brucellosis are very rare. We report of one young female patient with a long history of consumption of non-pasteurized dairy products in which clinical and laboratory findings confirmed the existence of an active brucellosis wi...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1996-10-01 00:00:00
abstract::COVID-19 is a devastating global pandemic around the world. While the majority of infected cases appear mild, in some cases individuals present respiratory complications with possible serious lung damage. There are no specific treatments for COVID-19 as yet, though a number are under evaluation, including experimental...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2020.04.018
更新日期:2020-08-01 00:00:00
abstract::Proteolytic activity was measured in lysates of four axenic and five xenic cultures of different strains of pathogenic E. histolytica, and in five non-pathogenic strains ("E. dispar") growing in xenic culture. There was no significant difference in total proteolytic activity, using either gelatin or albumin as substra...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::To know the activity of antimeningococcal immunoglobulin, Balb/c mice of 18-22 g of body weight were challenged with 5 serotype B strains of Neisseria meningitidis (Nm) isolated from patients of different Latin American countries. The specific antimeningococcal Ig was extracted from the serum of volunteers previously ...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:Short tandem repeats (STRs) on the non-pseudoautosomal region of the Y-chromosome are DNA polymorphic markers able to solve special cases in legal medicine, for instance in paternity testing where the alleged father is not available, and in forensic situations, such as rape cases, where mixtures of male/fema...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/s0188-4409(01)00266-1
更新日期:2001-05-01 00:00:00
abstract::The number of patients requiring lung transplantation is increasing, with a significant unmet demand for grafts. Ex vivo lung perfusion has been developed to increase graft recruitment. The major complications of lung transplantation include chronic allograft dysfunction (CLAD) whose cumulative incidence ranges from 4...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2015.03.004
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND AND AIMS:Hypophosphatasia is a genetic disorder characterized by defective bone and tooth mineralization and a deficiency of serum and bone alkaline phosphatase activity. To date, few studies have identified gene mutations in Chinese patients with hypophosphatasia. We sought to characterize the clinical mani...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2012.01.004
更新日期:2012-01-01 00:00:00
abstract::Classical descriptions of the pathology of amebiasis portray the parasite as the cause of tissue damage and destruction, and in recent years a number of amebic molecules have been identified as virulence factors. In this review we describe a series of experiments that suggest a more complex host-parasite relation, at ...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2005.10.007
更新日期:2006-02-01 00:00:00
abstract:BACKGROUND:Molluscum contagiosum has a worldwide occurrence and its primary mode of transmission is via direct human contact including sexual means. The aim of the study was to implement a polymerase chain reaction-based assay for detection and subtyping of Molluscum contagiosum virus (MCV) in skin lesions diagnosed wi...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2005.05.020
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND AND AIM:Oxalobacter formigenes is an intestinal bacterium that utilizes oxalate as the only source of energy. It has been suggested that the lack of colonization with this organism may be a risk factor for calcium oxalate urolithiasis. Because this problem was not investigated in pediatric stone formers, we ...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2009.05.004
更新日期:2009-07-01 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::At the end of the year 2019, the novel coronavirus (2019-nCoV) was spreading in Wuhan, China, and the outbreak process has a high speed. It was recognized as a pandemic by the World Health Organization (WHO) on 11 March 2020. Coronaviruses are enveloped and single-stranded RNA that have several families including Seve...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2020.04.022
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Coagulase-negative staphylococci (CoNS) have emerged as an important opportunistic pathogen isolated in hospital. Several species of CoNS have been implicated in human infections and disease especially in patients with poor health status. METHODS:A total of 71 clinical strains of CoNS were isolated from dia...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2006.06.007
更新日期:2006-11-01 00:00:00
abstract::Ultrafiltration, gel-sieve chromatography and HPLC were used to purify MLIF. This material was HCl-hydrolyzed and the amino acids analyzed by HPLC-ortho-ophthaldialdehyde. Two hydrophobic non-polar (ile,leu), two uncharged polar (thr,tyr) and two positively charged (basic) (his, arg) amino acids were found in clear ex...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND AND AIMS:Despite its beneficial effects, cisplatin has considerable nephrotoxic, ototoxic, neurotoxic and hepatotoxic side effects. It has been documented that reactive oxygen radical species are involved with the pathophysiology of cisplatin-induced hepatotoxicity. Molsidomine (MOL) can exert antioxidant an...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2013.09.013
更新日期:2013-10-01 00:00:00
abstract::Genetic alterations in tumors, as predictor of response to targeted-therapies or as prognostic markers, are clinically relevant to determine adequate therapeutic management. Tumor biopsy is currently the golden standard for somatic alterations assessment, but this approach is invasive and does not consider tumor heter...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2018.10.007
更新日期:2018-07-01 00:00:00
abstract::In this report we show the chromosomal changes seen in a group of 303 Mexican patients with de novo Acute Myeloblastic Leukemia (AML). Two hundred forty-two patients were diagnosed and treated at two hospitals affiliated with the Instituto Mexicano del Seguro Social (IMSS). These are the Centro Medico Nacional Siglo X...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00