Abstract：
:Santiago de Chile has a high level of air pollution with ozone (O3), carbon monoxide (CO) and particles equal or smaller than 10 microns (PM10) usually exceeding the accepted standards. This situation should be noxious for the exposed population and particularly--in the case of O3 and PM10--for the respiratory system. However, such an effect is rather difficult to demonstrate and it depends on the type of population under study.
journal_name
Biol Resjournal_title
Biological researchauthors
Oyarzún M,Pino P,Ortiz J,Olaeta Ikeywords:
subject
Has Abstractpub_date
1998-01-01 00:00:00pages
361-6issue
4eissn
0716-9760issn
0717-6287journal_volume
31pub_type
杂志文章abstract：:Cells tightly regulate iron levels through the activity of iron regulatory proteins (IRPs) that bind to RNA motifs called iron responsive elements (IREs). When cells become iron-depleted, IRPs bind to IREs present in the mRNAs of ferritin and the transferrin receptor, resulting in diminished translation of the ferriti...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/s0716-97602000000200013
更新日期：2000-01-01 00:00:00
abstract：:Loss of Imprinting (LOI) of IGF2 and over-expressed IGF2 are associated with tumorigenesis. Our previous epidemiological study found a relatively high frequency of IGF2 LOI in healthy mid-gestation pregnant women. The aim of this study is to determine whether the expression of IGF2 is associated with its imprinting st...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/S0716-97602012000400004
更新日期：2012-01-01 00:00:00
abstract：:The present work was intended to evaluate the preparation of antigens, as well as the production and characterization of anti cAMP and cGMP antibodies. Such antibodies were obtained from rabbits, and we used 2'O-succinyl cyclic nucleotide derivate, conjugated with human serum albumin, as antigen. The characterization ...
journal_title：Biological research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:Adenovirus genotype 7h was previously reported to be originated from a recombination event between adenovirus genotypes 7p and 3p. Based on those findings, further characterization of other adenovirus 7h strains become important to determine whether all adenovirus 7h strains arose from a single recombinational event. ...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/s0716-97602001000200010
更新日期：2001-01-01 00:00:00
abstract：BACKGROUND:Psoriasis is a common chronic inflammatory skin disease. Keratinocytes hyperproliferation and excessive inflammatory response contribute to psoriasis pathogenesis. The agents able to attenuate keratinocytes hyperproliferation and excessive inflammatory response are considered to be potentially useful for pso...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/s40659-020-00316-0
更新日期：2020-10-20 00:00:00
abstract：:The anti-inflammatory and redox protective effects of the citronellal (CT) were evaluated using in vivo and in vitro tests. Intraperitoneal (i.p.) administration of CT (50, 100, and 200 mg/kg) inhibited (p < 0.05) the carrageenan-induced leukocyte migration to the peritoneal cavity. Additionally, the carrageenan- and ...
journal_title：Biological research
pub_type： 杂志文章
doi：/S0716-97602011000400008
更新日期：2011-01-01 00:00:00
abstract：:The expression of the acetyl xylan esterase II (axeII) gene from Penicillium purpurogenum is repressed by glucose and induced by xylan, as well as to a small degree by xylose and xylitol. This gene is expressed at neutral pH, but not under alkaline or acidic conditions, in agreement with previous findings for other xy...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/s0716-97602004000100011
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:Accumulating studies have demonstrated that high-mobility group A2 (HMGA2), an oncofetal protein, plays a role in tumor development and progression. However, the molecular role of HMGA2 in ovarian carcinoma is yet to be established. MicroRNAs (miRNAs), a group of small noncoding RNAs, negatively regulate gen...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/s40659-018-0199-y
更新日期：2018-11-24 00:00:00
abstract：:In mammals, neurogenesis continues during adulthood in restricted places of the nervous system, namely the subventricular zone, the dentate gyms and the olfactory epithelium. A dual role of the second messenger nitric oxide has been reported in such places, either promoting or inhibiting proliferation of neuronal prec...
journal_title：Biological research
pub_type： 杂志文章,评审
doi：10.4067/s0716-97602006000500002
更新日期：2006-01-01 00:00:00
abstract：BACKGROUND:This study aimed to determine the seasonal changes of total antioxidant activity and phenolic compounds in samples taken from leaves (April, July, October) and stems (April, July, October, January) of some almond (Prunus amygdalus L.) varieties (Nonpareil, Ferragnes and Texas). RESULTS:It was indicated that...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/0717-6287-47-9
更新日期：2014-04-01 00:00:00
abstract：:Despite the fact that the concept of sheet-flow in the pulmonary microcirculation of mammals was introduced more than three decades ago, the capillary circulatory model still prevails in the physiological literature. Since cardiac output is identical in the systemic and in pulmonary circulations, it is noteworthy that...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/s0716-97602005000100007
更新日期：2005-01-01 00:00:00
abstract：BACKGROUND:The Hawthorn (Crateagus sp.) mostly occurs around the temperate region of the world with a high number of species, producing a fruit with numerous beneficial effects for human health. The aim of the study was to determine organic acid and sugar contents in the fruit of a number of hawthorn species grown in E...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/0717-6287-47-21
更新日期：2014-05-30 00:00:00
abstract：BACKGROUND:Left ventricular diastolic dysfunction is one of the main characteristics of heart failure patients with a preserved left ventricular ejection fraction. As bilirubin is regarded as an important endogenous antioxidant molecule, serum total bilirubin levels were compared between heart failure patients with a p...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/0717-6287-47-7
更新日期：2014-03-26 00:00:00
abstract：BACKGROUND:Zinc finger RNA binding protein (ZFR) is involved in the regulation of growth and cancer development. However, little is known about ZFR function in pancreatic cancer. METHODS:Herein, to investigate whether ZFR is involved in tumor growth, Oncomine microarray data was firstly used to evaluate ZFR gene expre...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/s40659-016-0086-3
更新日期：2016-05-13 00:00:00
abstract：:After the progress made during the genomics era, bioinformatics was tasked with supporting the flow of information generated by nanobiotechnology efforts. This challenge requires adapting classical bioinformatic and computational chemistry tools to store, standardize, analyze, and visualize nanobiotechnological inform...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/S0716-97602011000100006
更新日期：2011-01-01 00:00:00
abstract：:The major cysteine proteinase from Trypanosoma cruzi, cruzipain, can be obtained essentially homogeneous, starting from crude epimastigote extracts, in one step, by affinity chromatography on Cystatin-Sepharose (specific for cysteine proteinases) or ConA-Sepharose (specific for high mannose N-linked glycoproteins). Th...
journal_title：Biological research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:Control of smooth muscle is vital for health. The major route to contraction is a rise in intracellular [Ca2+], determined by the entry and efflux of Ca2+ and release and re-uptake into the sarcoplasmic reticulum (SR). We review these processes in myometrium, to better understand excitation-contraction coupling and de...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/s0716-97602004000400017
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:Asthma is a complex disease influenced by multiple genetic and environmental factors. While Madeira has the highest prevalence of asthma in Portugal (14.6%), the effect of both genetic and environmental factors in this population has never been assessed. We categorized 98 asthma patients according to the Glo...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/0717-6287-47-40
更新日期：2014-09-04 00:00:00
abstract：BACKGROUND:Impaired wound healing is a complication of diabetes and a serious problem in clinical practice. We previously found that whey protein (WP) was able to regulate wound healing normally in streptozotocin (STZ)-diabetic models. This subsequent study was designed to assess the effect of WP on heat shock protein-...
journal_title：Biological research
pub_type： 杂志文章
doi：10.1186/s40659-015-0044-5
更新日期：2015-10-01 00:00:00
abstract：:Hyptidendron canum (Pohl ex Benth.) Harley is a native tree of the Brazilian Savannah. The fish Oreochromis niloticus L. was used as an experimental model to determine the bioactivity of the crude ethanol extract as well as ethyl acetate, hexanic and chloroform fractions obtained from its leaves. The plant ethanol ext...
journal_title：Biological research
pub_type： 杂志文章
doi：/S0716-97602009000200003
更新日期：2009-01-01 00:00:00
abstract：:7-ketocholesterol (7-KC) differs from cholesterol by a functional ketone group at C7. It is an oxygenated cholesterol derivative (oxysterol), commonly present in oxidized low-density lipoprotein (LDL). Oxysterols are generated and participate in several physiologic and pathophysiologic processes. For instance, the cyt...
journal_title：Biological research
pub_type： 杂志文章
doi：/S0716-97602010000400008
更新日期：2010-01-01 00:00:00
abstract：:Unilateral brain damage which includes the hippocampus leads to memory impairments consistent with hemispheric specialization on the same side. Damage to the corpus callosum, the major connecting pathway between the left and right hemispheres, also leads to memory impairments. This suggests both hemispheric specializa...
journal_title：Biological research
pub_type： 杂志文章,评审
doi：
更新日期：1995-01-01 00:00:00
abstract：:A peptide from hindguts of the Triatoma infestans, the hematophagous Chagas' insect vector, activates adenylyl cyclase activity in Trypanosoma cruzi epimastigote membranes and stimulates the in vitro differentiation of epimastigotes (proliferative and non-infectious forms) to metacyclic trypomastigotes (non-proliferat...
journal_title：Biological research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The aim of this study was to investigate the in vitro cytotoxic activity of total extract of MeOH (70%) and partition fractions of hexan, chloroform (CHCL3), ethylacetate (EtOAc) and MeOH-H2O of brown algae species (Sargassum swartzii, Cystoseira myrica, Colpomenia sinuosa) found in the Persian Gulf against in differe...
journal_title：Biological research
pub_type： 杂志文章
doi：/S0716-97602010000100005
更新日期：2010-01-01 00:00:00
abstract：:The aim of this study was to compare the effects of Mediterranean-type diet (MD), high-fat diet (HFD), and red wine supplementation on plasma concentration of emergent haemostatic cardiovascular risk factors (HCVRF) and on variables of primary haemostasis (bleeding time, plasma von Willebrand factor and platelet aggre...
journal_title：Biological research
pub_type： 临床试验,杂志文章
doi：10.4067/s0716-97602004000200007
更新日期：2004-01-01 00:00:00
abstract：:Extracts prepared from seeds of Manilkara zapota, Anona squamosa, and Tamarindus indica were screened for their antibacterial activity by disc diffusion and broth dilution methods. Acetone and methanol extracts of T. indica seeds were found active against both gram-positive and gram-negative organisms. MIC values of p...
journal_title：Biological research
pub_type： 杂志文章
doi：/S0716-97602010000200003
更新日期：2010-01-01 00:00:00
abstract：:Prolactin (PRL) is a pituitary hormone that plays important roles in mammalian reproductive physiology, specially lactation. The regulation of PRL secretion shows important species differences. To study PRL regulation in a subhuman primate, the Cebus apella, we developed an heterologous radioimmunoassay using an antib...
journal_title：Biological research
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:We review the development of our knowledge and interpretations of the intermediary metabolism of Trypanosoma (Schizotrypanum) cruzi. Already in the 1950's it was clearly established that when this organism was exposed to large external concentrations of carbohydrates it was unable to catabolize them completely, even i...
journal_title：Biological research
pub_type： 杂志文章,评审
doi：
更新日期：1993-01-01 00:00:00
abstract：:Breast cancer is the most common malignancy among women. Chilean studies reveal that this cancer presents the third highest mortality rate. A family history of breast cancer is one of the major risk factors for the development of this disease. BRCA1 and BRCA2 are the two main hereditary breast cancer susceptibility ge...
journal_title：Biological research
pub_type： 杂志文章
doi：10.4067/s0716-97602002000100011
更新日期：2002-01-01 00:00:00
abstract：:Cyanobacteria display a large diversity of cellular forms ranging from unicellular to complex multicellular filaments or aggregates. Species in the group present a wide range of metabolic characteristics including the fixation of atmospheric nitrogen, resistance to extreme environments, production of hydrogen, seconda...
journal_title：Biological research
pub_type： 杂志文章,评审
doi：10.4067/S0716-97602013000400009
更新日期：2013-01-01 00:00:00
