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 substrate, between the two sets of xenic cultures; the axenic pathogens however had significantly higher levels of activity than the xenic pathogens, the levels appearing to correlate with virulence. An axenic strain (NIH 200) reassociated with mixed bacterial flora reverted to close to xenic levels of activity. There was no evidence of secretion of an elevated proportion of the total enzymic activity by pathogenic strains, and expression levels may owe more to culture conditions than to genotype.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Spice WM,Ackers JPsubject
Has Abstractpub_date
1992-01-01 00:00:00pages
91-3issue
2eissn
0188-4409issn
1873-5487journal_volume
23pub_type
杂志文章abstract::Pathogenesis of the development of sepsis is highly complex and has been the object of study for many years. The inflammatory phenomena underlying septic shock are described in this review, as well as the enzymes and genes involved in the cellular activation that precedes this condition. The most important molecular a...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2004.07.006
更新日期:2004-11-01 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: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::Nicorandil, the first clinically applied ATP-sensitive K+ channel (K+ATP) opener with nitrate property, has demonstrated cardioprotective effects in patients with multiples of heart diseases. However, it is unknown whether nicorandil has effects on left ventricular (LV) remodeling in rats with ischemic heart failure a...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2018.12.006
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND AND AIMS:This study is concerned with the expressions of growth-associated protein-43 (GAP-43) mRNA and protein in the anterior horn of the spinal cord after brachial plexus injury. METHODS:Animals were killed 1, 7, 14 days after injury and were divided into three injury groups: group 1, right C(7) ventral ...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2010.10.005
更新日期:2010-10-01 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
abstract:BACKGROUND AND AIMS:Small cell lung cancer (SCLC) is frequently associated with syndrome of inappropriate antidiuretic hormone (SIADH) secretion. In this study we investigated the prognostic value of SIADH in Chinese patients with SCLC. METHODS:We prospectively studied a total of 385 patients with SCLC diagnosed in ou...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2015.12.006
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND AND AIMS:Supplementation with n3 long-chain polyunsaturated fatty acids (n3-LCPUFA) appears to affect body weight, adipokines, and insulin resistance (IR) in obese individuals. However, it is unclear whether the effect on IR is independent of weight loss and if the same effect is observed in children. We und...
journal_title:Archives of medical research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.arcmed.2011.06.010
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:The benefits of a special stroke care unit (SSCU) over a non-specialized stroke care unit (NSSCU) is well documented in the literature. However, there are concerns that the benefits seen in the SSCU do not consider clinical risk factors that affect thrombolysis therapy. METHOD:Retrospective data were collec...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2019.01.002
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:Thymectomy is considered the most effective treatment for achieving sustained improvement as well as remission in patients with myasthenia gravis (MG), and most neurologists favor the use of this procedure. The main focus of many current studies is to determine response-predicting factors. METHODS:Clinical ...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/s0188-4409(02)00405-8
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND AND AIMS:Jagged1/Notch3 signaling pathway plays a key role in angiogenesis of breast cancer, but little is known in TNBC. This study was designed to investigate the expression of Jagged1/Notch3 mRNA and protein in TNBC, analyze their correlations with clinicopathological characteristics and prognosis. Moreov...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2017.03.014
更新日期:2017-02-01 00:00:00
abstract::Chronic cerebellar stimulation (CCS) applied to the superio-medial cortex reduces generalized cerebral spasticity, athetoid movements, and seizures. Eighteen clinics have reported on 600 cerebral palsy (CP) patients who comprise 90% of those treated with CCS. CP patients have varying degrees of limited abilities inter...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/s0188-4409(00)00065-5
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:Because lymphocytes from fragile X patients have been reported as hypersensitive to bleomycin-induced chromatid breaks and because the number of trinucleotide repeats in families with fragile X syndrome has a propensity to expand, we have investigated the possibility that fragile X cells may be hypersensitiv...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/s0188-4409(01)00376-9
更新日期:2002-03-01 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::Thanks to the results of the multiple completed and ongoing genome sequencing projects and to the newly available recombination-based cloning techniques, it is now possible to build gene repositories with no precedent in their composition, formatting, and potential. This new type of gene repository is necessary to add...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/s0188-4409(02)00372-7
更新日期:2002-07-01 00:00:00
abstract::With the use of the polymerase chain reaction (PCR), we investigated the frequency of the typical and atypical genes of the alcohol dehydrogenase 2 (ADH2) and aldehyde dehydrogenase 2 (ALDH2) loci, in a group of patients with alcoholic liver cirrhosis and two comparison groups. Contrary to what has been found in the J...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Mongolian gerbils were inoculated intracecally with E. histolytica trophozoites cultured monoxenically. During the first hours of interaction an increase in mucus production was observed. Microulcerative mucosal lesions appeared 24 to 72 h post-inoculation. Inflammatory infiltrate and edema of the lamina propria were ...
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:Because of their lack of long-term viability, adrenal tissue transplants have shown limited success in alleviating the motor disturbances associated with experimental and pathologic striatal dopamine denervation. In this study, we examined how the graft placement site influences adrenal medulla transplant su...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/s0188-4409(00)00247-2
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND AND AIMS:The catechol-O-methyltransferase (COMT) gene is a potential candidate in altering risk for preeclampsia due to the important enzymatic effects in the metabolism of steroid hormones. It contains a non-synonymous G-A base change at codon 158 in the membrane bound isoform, which leads to a valine-to-me...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2012.03.002
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND AND AIMS:Distal renal tubular acidosis (dRTA) is characterized by a reduced ability to acidify urine, variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis. Mutations in the SLC4A1 gene have been found to cause either autosomal dominant (AD) or autosomal recessive (AR)...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2012.05.001
更新日期:2012-05-01 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:Myocardial infarction (MI) is one of the most important diseases that has stimulated interest in understanding cardiac function recovery. SDF-1 is a chemotactic factor and a pro-angiogenic molecule; SDF-1 degradation is inhibited by dipeptidyl peptidase-4 (DPP4) inhibitors, such as vildagliptin. We investiga...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2019.07.004
更新日期:2019-04-01 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
abstract::Despite that the human gastrointestinal tract is the most populated ecological niche by bacteria in the human body, much is still unknown about its characteristics. This site is highly susceptible to the effects of many external factors that may affect in the quality and the quantity of the microbiome. Specific factor...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2017.11.004
更新日期:2017-11-01 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: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::Policosanol, a defined mixture of high molecular weight aliphatic alcohol isolated and purified from sugar cane (Saccharum officinarum, L) wax is a new cholesterol-lowering agent effective in experimental models, healthy volunteers, and patients with type II hypercholesterolemia. Also, policosanol prevents the onset o...
journal_title:Archives of medical research
pub_type: 杂志文章
doi:
更新日期:1997-10-01 00:00:00
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....
journal_title:Archives of medical research
pub_type: 杂志文章
doi:10.1016/j.arcmed.2012.09.007
更新日期:2012-10-01 00:00:00
abstract::Behavioral changes and adherence to pharmacological treatment are essential for improving the prognosis in chronic illness. Lack of adherence to treatment is a common problem in every practice and many patients drop out of care prematurely. The present article is a review of our knowledge regarding adherence to treatm...
journal_title:Archives of medical research
pub_type: 杂志文章,评审
doi:10.1016/j.arcmed.2004.12.001
更新日期:2005-05-01 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