Abstract：
BACKGROUND:Estrogens exert profound effects on target tissues. These effects are mediated by two estrogen receptors (ER(alpha) and ER(beta)) that bind to specific DNA sequences in estrogen-dependent genes. Other molecules such as growth factors, transcription factors and some oncoproteins might interact with the estrogen receptors and thus regulate the transcription of these genes. Currently there is no adequate cellular model to study these interactions. METHODS:We transfected the human wild-type ER(alpha) to an ER-negative rat epithelial endometrial cell line (Rentr01) using a tetracycline-regulated gene expression system. The exogenous receptor was correctly translated, had an appropriate hormone-binding affinity, and bound well to estrogen response elements containing DNA. RESULTS:We obtained a new stable cell line that is ER(beta) negative but ER(alpha) positive (R1-49E1). The expression of receptor alpha can be regulated in a dose-response manner by addition of tetracycline in the culture medium. Estradiol treatment of ER(alpha)-containing cells apparently diminished cellular proliferation, and the exogenous receptor can induce the transcription of the endogenous progesterone receptor isoform B (PgR-B) gene. CONCLUSIONS:This epithelial cellular model may be useful to study the interaction between estrogens and other cell signaling pathways in epithelial endometrial cell physiology.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Castro I,Arias J,Flores H,Barrón Adoi
10.1016/j.arcmed.2005.03.030subject
Has Abstractpub_date
2005-07-01 00:00:00pages
331-8issue
4eissn
0188-4409issn
1873-5487pii
S0188-4409(05)00104-9journal_volume
36pub_type
杂志文章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: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：:Adhesion of trophozoites to target cells in the host intestine is the first of three consecutive steps (adherence, cytolytic effect and phagocytosis) involved in the invasion of colonic tissue by E. histolytica. To investigate the possible participation of the local secretory immune response in the interference with t...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 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：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:Umbilical cord blood (UCB) has been identified as a good source of hematopoietic and nonhematopoietic stem cells that can be easily isolated. In the present study we investigated the possibility of whether stem cells in mononuclear UCB grown under defined conditions can produce progeny with neural p...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2011.10.003
更新日期：2011-10-01 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：BACKGROUND:The objective of this study was to assess the effect of maternal depressive symptomatology on fat deposition in a group of pregnant adolescents. METHODS:A case-control study was performed with 85 pregnant women (45 adolescents and 40 adults) who attended a prenatal care course at a teaching hospital in Mexi...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-4409(00)00041-2
更新日期：2000-01-01 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
abstract：BACKGROUND:Hyperlipidemia is a risk factor for atherosclerotic events. Differences in lipid levels may exist in different races. Han is the largest group and Zhuang is the largest minority among the 56 nationalities in China. Geographically and linguistically, Zhuang can be classified into 43 ethnic subgroups, among wh...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2005.12.005
更新日期：2006-08-01 00:00:00
abstract：BACKGROUND:Polymorphisms which are inherited alterations in the activity of cytochrome P450 1B1 (CYP1B1), catechol O-methyltransferase (COMT), manganese superoxide dismutase (MnSOD) hold the potential to define differences in estrogen metabolism and, thereby, possibly explain inter-individual differences in cancer susc...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2004.10.003
更新日期：2005-01-01 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：BACKGROUND:We previously showed by using biochemical parameters that male Sprague-Dawley rats receiving a single intraperitoneal (i.p.) administration of alloxan (120 mg/kg body weight) with no further treatment recovered endocrine pancreatic function after 12 days. METHODS:Male Sprague-Dawley rats received an i.p. in...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2003.10.001
更新日期：2004-03-01 00:00:00
abstract：BACKGROUND AND AIMS:Further cases of novel influenza A (H1N1) outbreak are expected in the coming months. Vaccination has been proven to be essential to control a pandemic of influenza; therefore, considerable efforts and resources have been devoted to develop a vaccine against the influenza A (H1N1) virus. With the cu...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2010.01.004
更新日期：2009-11-01 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 AND AIMS:Previously, TP53 codon 72 polymorphisms have been implicated as risk factors for various cancers. Several studies have been conducted on the association of TP53 codon 72 polymorphisms with susceptibility to nasopharyngeal carcinoma (NPC) and have yielded inconclusive results. The aim of the present ...
journal_title：Archives of medical research
pub_type： 杂志文章,meta分析
doi：10.1016/j.arcmed.2009.03.006
更新日期：2009-05-01 00:00:00
abstract：:Alzheimer's disease (AD) diagnosis still depends on the triad of clinical, imaging and neuropsychological testing. The development of accurate, easy to use and inexpensive biological markers for AD is a long-standing aspiration for researchers and the medical community. Here we describe some of the recent advances in ...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2012.10.013
更新日期：2012-11-01 00:00:00
abstract：:During the late 1940s, Alfred Jost demonstrated that mammalian sex differentiation begins in fetal testis, producing two factors necessary for the establishment of phenotypic males. Castrated embryos prior to testis differentiation led to phenotypic female differentiation. Jost proposed the existence of a testis-deter...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/s0188-4409(01)00317-4
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:Many studies indicate that the production of reactive oxygen species (ROS) after renal ischemia/reperfusion (I/R) may initiate the cascade of cellular injury. It has been demonstrated that ozone oxidative preconditioning (OzoneOP) may prevent the damage induced by ROS and attenuate renal I/R injury. On the b...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2007.09.005
更新日期：2008-02-01 00:00:00
abstract：BACKGROUND:Acute myocardial infarction (AMI) is a leading cause of death in Mexico. Atherogenic lipid profile is a key component in AMI. Thus, it is imperative to find drug therapies able to reduce atherogenic lipids in AMI patients and prevent subsequent myocardial infarctions. AIM OF THE STUDY:To investigate the eff...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2019.08.002
更新日期：2019-05-01 00:00:00
abstract：:Hepatitis C represents more than 35% of liver transplant candidates worldwide. Meanwhile, hepatitis B continues to be an important cause of end-stage liver disease and hepatocellular carcinoma in Asia and Africa. Recurrent viral liver disease is a significant event after liver transplantation and continues to be one o...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2006.09.003
更新日期：2007-08-01 00:00:00
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 progre...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2007.02.004
更新日期：2007-11-01 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：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：:In this study we evaluated the usefulness of ferruginous bodies (FB) quantification in lung digest and histologic sections from 40 patients with a history of exposure to inorganic dusts. The patients were matched with 40 cases without occupational exposure. The samples of peripheral lung tissue were digested and all F...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:It is currently accepted that the red blood cell indices (MCV, MCH and MCHC) are the same in general care hospital populations throughout the world. The aim of the study was to explore whether the internationally accepted values for red cell indices are the same in a hospital located in Mexico City at 2240 meters abov...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
abstract：:Gene therapy holds great promise. Somatic gene therapy has the potential to treat a wide range of disorders, including inherited conditions, cancers, and infectious diseases. Early progress has already been made in the treatment of a range of disorders. Ethical issues surrounding somatic gene therapy are primarily tho...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/S0188-4409(03)00070-5
更新日期：2003-07-01 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：: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：:The myosin heavy chain gene A, mhcA, from E. histolytica was identified by polymerase chain reaction. There is only one copy of this gene on the ameba genome. The mhcA gene encodes a 6 kb messenger RNA. The predicted protein sequence is homologous to myosin II from both, Dictyostelium discoideum and Acanthamoeba caste...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
