Abstract：
:The E. histolytica rDNA episome consists of a 3.7 kb HindIII fragment located downstream of the rDNA inverted repeats. We have determined the complete nucleotide sequence of this fragment and have shown that it is comprised of two families of short tandem repeats, the 170 bp DraI repeat and the 144 bp ScaI repeat. Each DraI repeat unit consists of 12-mer sequences with near complete homology to yeast consensus autonomously replicating sequence. In addition, a 21-mer subrepeat structure is also present in each unit. The sequence of the ScaI repeat is about 90% homologous with the sequence of another family of 145 bp tandem repeats, the PvuI repeats reported to be present upstream of the rRNA genes (3). Compared with most other parts of the rDNA episome, the downstream region showed frequent restriction fragment length polymorphism. This was due to changes in the number of tandem DraI repeat units. The loss of these repeats might explain how rDNA length heterogeneity observed in the clones of HM1:IMSS could have arisen. On the other hand, the number of ScaI repeat units in these clones remained unchanged. The repeat units found in the 3.7 kb HindIII fragment show superficial resemblance to equivalent regions of the intergenic spacers of higher eukaryotes. Moreover, these repeated sequences seem to be specific for the pathogenic strain of E. histolytica.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Mittal V,Bhattacharya A,Bhattacharya Ssubject
Has Abstractpub_date
1992-01-01 00:00:00pages
17-8issue
2eissn
0188-4409issn
1873-5487journal_volume
23pub_type
杂志文章abstract：BACKGROUND:Little is known about the potential relationship of obesity, adipose tissue and novel adipokines with cardiometabolic risk factors in end-stage renal disease. Zinc-α2-glycoprotein (ZAG) and adipose triglyceride lipase (ATGL) are novel adipokines with proposed desirable effects on inflammation, and lipid and ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2017.10.004
更新日期：2017-07-01 00:00:00
abstract：BACKGROUND AND AIMS:T-helper (Th) cells involved in the pathogenesis of multiple sclerosis (MS) represent a functionally heterogeneous population defined by their cytokine secretion profile. The effects of immunotherapeutic drugs on the cytokine network are still not fully clarified. This study aimed to investigate ser...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2014.08.001
更新日期：2014-08-01 00:00:00
abstract：BACKGROUND AND AIMS:Cervical cancer is a common neoplastic disease affecting women worldwide. Expression of human papillomavirus type 16 (HPV-16) E6/E7 genes is frequently associated with cervical cancer, representing ideal targets for diagnostic and therapeutic strategies. Aptamers are oligonucleotide ligands capable ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2011.02.005
更新日期：2011-02-01 00:00:00
abstract：:A prospective study to evaluate the role of vitamin C and cervico-vaginal infection in the premature rupture of amniotic membranes (PROM) was designed. The leukocyte vitamin C levels of 44 pregnant women that did not consume vitamin supplements was evaluated at weeks 20, 28 and 32 of pregnancy. On each evaluation the ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：BACKGROUND:Angiotensin converting enzyme (ACE) inhibitors and angiotensin II AT1-receptor antagonists prolong survival in experimental postischemic heart failure (CHF) in rats. The aim of this study was to investigate whether potential beneficial effects of early and long-term therapy with low doses of captopril or los...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/S0188-4409(03)00076-6
更新日期：2003-09-01 00:00:00
abstract：:The fundamental principle of stem cell biology is that cells with the potential for both self-renewal and terminal differentiation into one or more cell types may be found in a given tissue. The corollary of this principle is that the stem cells give rise to tissues in which they reside, the so-called expected tissues...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2003.09.006
更新日期：2003-11-01 00:00:00
abstract：BACKGROUND:Patients with certain types of stroke need urgent anticoagulation and it is extremely important for them to achieve fast and stable anticoagulant effect and receive individualized treatment during the initiation of warfarin therapy. METHODS:We conducted a prospective study among 210 acute stroke patients wh...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2015.05.001
更新日期：2015-05-01 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：: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：: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：: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: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:Cellular events in cisplatin-mediated nephrotoxicity include apoptosis induction, decreased protein synthesis, changes in the subcellular redistribution of Bax mitochondrial dysfunction, DNA injury, increased lipid peroxidation, depletion of glutathione and decrease in enzymatic activity of renal antioxidant...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2006.02.008
更新日期：2006-08-01 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：BACKGROUND AND AIMS:We undertook this study to investigate the association between CT perfusion characteristics and differentiation grade in lung cancer, as well as the pathological basis of this association. METHODS:Seventy three patients received CT perfusion scan and pathological biopsy, and 30 of them were availab...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2010.11.005
更新日期：2010-11-01 00:00:00
abstract：BACKGROUND:PCI is an expensive procedure in our population and it implies a huge cost for the institutions and National Health Service. AIM OF THE STUDY:The main objective was to evaluate the technical and biological success of two stents designed in Mexico. METHODS:Ten York pigs, 4-6 months of age, underwent implant...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2020.03.016
更新日期：2020-07-01 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：:Three exoglucanase genes have been described in Saccharomyces cerevisiae. The bulk of the exoglucanase (EXO) activity is encoded by the EXG1 gene, whose primary gene product is differentially glycosylated during its transit to the cell surface to yield three isoenzymes: EXOI, EXOII and EXOII1/2. EXOII, the major isoen...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：
更新日期：1993-10-01 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：: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:The aim of this study was to determine concentrations of tumor necrosis factor-alpha (TNF-alpha) in normal, painful, and asymptomatic human dental pulps. METHODS:Pulps were obtained from three groups of teeth, including healthy teeth, asymptomatic teeth with caries and/or large restoration, and symptomatic ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(02)00396-x
更新日期：2002-09-01 00:00:00
abstract：:The most frequent cause of preventable blindness in adults, in the developed world, is diabetic retinopathy (DR). The early treatable phase of this complication is clinically silent. In order to institute effective laser photocoagulation and prevention of blindness, timely detection is crucial. Consequently there is a...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1997-04-01 00:00:00
abstract：:Intracellular communication is an essential process in both embryological development and for the maintenance of normal tissue physiology. We have established the presence of this type of communication between endothelial cells and vascular smooth muscle cells in man and have here investigated the close contacts betwe...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：BACKGROUND:Inflammation is a risk factor for mortality in patients with chronic renal failure (CRF). Prevention of extracellular fluid volume expansion and the use of certain drugs such as pentoxifylline (PF) may reduce inflammation and oxidative stress. The aim of this study is to analyze the effect of dietary sodium ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2006.08.010
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND:We undertook this study to compare the effectiveness and safety of antenatal daily and weekly supplementation with iron, folic acid, and vitamin B(12) in healthy, pregnant women who were not anemic at gestational week 20. METHODS:Women with singleton pregnancies and blood hemoglobin (Hb) >115 g/L at gestati...
journal_title：Archives of medical research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.arcmed.2005.11.011
更新日期：2006-07-01 00:00:00
abstract：:Blood-brain barrier (BBB) disruption has been associated with several acute and chronic brain disorders such as Alzheimer's disease, Parkinson's disease and epilepsy. This represents a critical situation because damaged integrity of the BBB is related to the influx of immune mediators, plasma proteins and other outsid...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2014.11.010
更新日期：2014-11-01 00:00:00
abstract：BACKGROUND AND AIMS:This study was carried out to assess and investigate the prevalence of overweight and obesity among preschool-age children living in northeast China using the World Health Organization (WHO), International Obesity Task Force (IOTF) and Centers for Disease Control and Prevention (CDC) standard criter...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2011.10.011
更新日期：2011-10-01 00:00:00
abstract：BACKGROUNDS AND AIMS:Selenium nanoparticles (SeNPs) have been reported to exhibit an inhibitory effect on cancer cells. In the present study, we aimed to compare the in vitro and in vivo effects of SeNPs and folic acid surface-coated selenium nanoparticles (FA@SeNPs) on breast cancer. METHODS:FA@SeNPs and SeNPs were c...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2018.04.007
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND AND AIMS:This study was designed to identify susceptibility to insulin resistance and the association of serum resistin and adiponectin with insulin resistance in patients with Behçet's disease (BD). Also, we identify risk determinants for insulin resistance in BD patients. METHODS:The study population cons...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2010.05.008
更新日期：2010-05-01 00:00:00
abstract：OBJECTIVE:To investigate interaction between autophagy and PKC-ε in lipid metabolism of NAFLD cell models. METHODS:HL-7702 cells and SK-HEP-1 cells were cultured in vitro as NAFLD cell models and treated with RAPA to induce autophagy. 3-MA was used to inhibit cell autophagy. And HL-7702 and SK-HEP-1 cell were ordinary...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2018.11.006
更新日期：2018-08-01 00:00:00
