Abstract：
BACKGROUND AND AIMS:MicroRNA-34a (miR-34a) as a tumor suppressor has been reported in many other studies. However, its role in modulating the sensitivity of breast cancer cells to adriamycin (ADR) remains unclear. The aim of this study is to evaluate the role of miR-34a in the sensitivity of breast cancer cells to ADR. METHODS:The role of miR-34a in breast cancer cells was detected using MTT assay, flow cytometry assay, real-time PCR and Western blot, etc. The association of miR-34a and Notch1 was analyzed by dual-luciferase reporter assay and Notch1-siRNA technology. Real-time PCR assay was performed to test the expression of miR-34a and Notch1 in 38 selective breast cancer tissue samples. RESULTS:Ectopic overexpression of miR-34a could sensitize MCF-7 breast cancer cells to ADR. MiR-34a mimic could inhibit the luciferase activity of the construct containing wild-type 3' UTR of Notch1 in MCF-7/ADR cells. Notch1-siRNA could partially reverse the effect of miR-34a inhibitor in inducing chemoresistance of MCF-7 cells to ADR. Further, there was an inverse association between Notch1 and miR-34a expression in breast cancer. CONCLUSION:Dysregulation of miR-34a plays critical roles in the acquired ADR resistance of breast cancer, at least in part via targeting Notch1.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Li XJ,Ji MH,Zhong SL,Zha QB,Xu JJ,Zhao JH,Tang JHdoi
10.1016/j.arcmed.2012.09.007subject
Has Abstractpub_date
2012-10-01 00:00:00pages
514-21issue
7eissn
0188-4409issn
1873-5487pii
S0188-4409(12)00276-7journal_volume
43pub_type
杂志文章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：:Phagocytic host defense mechanisms play a pivotal role in the prevention and containment of invasive, disseminated candidiasis, aspergillosis, and other opportunistic mycoses. The specific processes involved depend upon both the species, growth phase, and surface properties of the fungal target and the type and differ...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：
更新日期：1993-01-01 00:00:00
abstract：BACKGROUND:Previous studies demonstrated that (99m)Tc-labeled-ubiquicidin 29-41 ((99m)Tc-UBI 29-41) imaging is an accurate method for detection of bacterial infections. This study was conducted to evaluate the clinical use of (99m)Tc-UBI 29-41 for detection of mediastinitis after cardiac surgery. METHODS:Thirteen pati...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2008.09.002
更新日期：2008-11-01 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：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：: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：BACKGROUND:Patients suffering from hypothyroidism tend to develop diastolic hypertension. 5-Hydroxytryptamine (5-HT) is an amine that contributes to the maintenance of the blood pressure through central and peripheral 5-HT receptors. Curiously, the hypothyroidism alters the density of the 5-HT receptors in rodent brain...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2020.03.013
更新日期：2020-05-01 00:00:00
abstract：OBJECTIVE:Lipoprotein(a) [Lp(a)] is an independent cardiovascular risk factor. We present real-life characteristics of patients with increased Lp(a) levels attending a University Lipid Clinic. METHODS:We retrospectively studied patients attending the University of Ioannina Hospital Lipid Clinic with Lp(a) levels ≥30 m...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2020.12.003
更新日期：2020-12-27 00:00:00
abstract：:Hué, a city of about 300,000 inhabitants in Central Vietnam, is known as a "hot spot" for diseases caused by Entamoeba histolytica and in particular for amebic liver abscess (ALA), thus representing an excellent site for studies on the epidemiology and treatment of E. histolytica infections. Accordingly, during the la...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2005.10.001
更新日期：2006-02-01 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 AND AIMS:The use of automated peritoneal dialysis (APD) is increasing compared to continuous ambulatory peritoneal dialysis (CAPD). Surprisingly, little data about health benefits and cost of APD exist, and virtually no information comparing the cost-utility between CAPD and APD is available. We undertook th...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2013.10.017
更新日期：2013-11-01 00:00:00
abstract：BACKGROUND:Cisplatin is a widely used chemotherapy agent that has several adverse effects, such as ototoxicity. Evaluation of hearing loss due to cisplatin therapy in children is difficult. The purpose of this study was to compare the validity of distortion product otoacoustic emissions (DPOAEs) with pure tone audiomet...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/S0188-4409(03)00022-5
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:Previous studies have reported vitamin D receptor (VDR) polymorphisms in multiple sclerosis (MS); however, the results remain contradictory. This study aimed to investigate the association between VDR polymorphisms and the risk of MS. METHODS:PubMed and Embase databases were searched to obtain eligible stud...
journal_title：Archives of medical research
pub_type： 杂志文章,meta分析
doi：10.1016/j.arcmed.2019.10.007
更新日期：2019-08-01 00:00:00
abstract：BACKGROUND:Afternoon nap sleep was studied in 32 young male medical students who take customary naps to replace loss in nocturnal sleep. METHODS:From 16 subjects, a group called dreamers was formed, and the other 16 individuals were grouped as non-dreamers. Polygraphic recordings lasting 30 min were done at a fixed ti...
journal_title：Archives of medical research
pub_type： 临床试验,杂志文章
doi：
更新日期：1998-07-01 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：:It is likely that monosodium glutamate (MSG) is the excitotoxin that has been most commonly employed to characterize the process of excitotoxicity and to improve understanding of the ways that this process is related to several pathological conditions of the central nervous system. Excitotoxicity triggered by neonatal...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2014.11.014
更新日期：2014-11-01 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:High mobility group box 1 (HMGB1) plays an important role as a pro-inflammatory cytokine that regulates inflammation in various diseases. We hypothesized that hemin might reduce HMGB1 release through the induction of HO-1 in UVB-induced HaCaTs. METHODS:The effects of hemin on the release of HMGB1 i...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2017.10.007
更新日期：2017-07-01 00:00:00
abstract：BACKGROUND:Associations between hyperuricemia, metabolic syndrome, cardiovascular disease and diabetes have been reported. Limited information, however, is available concerning the prevalence and correlates of hyperuricemia among Thai men and women. We sought to estimate the prevalence of hyperuricemia among a populati...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2006.03.008
更新日期：2006-10-01 00:00:00
abstract：BACKGROUND:Adrenoceptors have been involved in the regulation of hepatocyte proliferation after partial hepatectomy, as well as in primary culture. This report characterizes alpha 1- and beta-adrenoceptor change during the time-course of liver regeneration in adult Wistar Kyoto rats. METHODS:Saturation binding assays ...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-0128(98)00028-1
更新日期：1999-03-01 00:00:00
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. Eac...
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: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: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:Pyruvate kinase isozymes in human breast tumor tissue were compared in this study with normal human breast tissue. Two forms of pyruvate kinase present in normal and tumor human breast were purified by ammonium sulfate precipitation, dialysis, gel filtration, ion exchange, and affinity chromatography. Molecu...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/S0188-4409(03)00054-7
更新日期：2003-07-01 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：:Global warming has serious implications for all aspects of human life, including infectious diseases. The effect of global warming depends on the complex interaction between the human host population and the causative infectious agent. From the human standpoint, changes in the environment may trigger human migration, ...
journal_title：Archives of medical research
pub_type： 杂志文章,评审
doi：10.1016/j.arcmed.2005.03.041
更新日期：2005-11-01 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:Neurofibromatosis type I (NF1) is one of the most common neurocutaneous syndromes characterized by development of adult neurofibromas which is mainly made up of Schwann cells. The disease is generally accepted to be caused by inactivation mutation of Nf1 gene. And Nf1 deficiency had been reported to...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2017.11.014
更新日期：2017-08-01 00:00:00
abstract：BACKGROUND:Several clinical conditions suggest an effect of sex steroids on glucose homeostasis in women. Studies examining this phenomenon have yielded controversial results. METHODS:To investigate the effect of the menstrual cycle on insulin sensitivity, glucose effectiveness and acute insulin response to glucose us...
journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/s0188-0128(98)00008-6
更新日期：1999-01-01 00:00:00
abstract：BACKGROUND:Cardiac resynchronization therapy (CRT) has been shown to improve the clinical status and survival in congestive heart failure (CHF) patients, but little is known about its influence on neurohormonal profile. METHODS:Heart failure patients treated with CRT for moderate/severe heart failure were studied with...
journal_title：Archives of medical research
pub_type： 临床试验,杂志文章
doi：10.1016/j.arcmed.2008.07.004
更新日期：2008-10-01 00:00:00
