Stem cells: sources and therapies.

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

authors： Chávez R,Schachter K,Navarro C,Peirano A,Bull P,Eyzaguirre J

更新日期：2004-01-01 00:00:00

abstract：:Tumor growth is the result of combined cell proliferation overwhelming cell death and neoangiogenesis. This report shows CAM angiogenesis promoted by TA3 tumor supernatant with or without low dosis of betamethasone (Minimal antiangiogenic concentration: beta-MAAC). Methylcellulose discs instilled with 10 microliters o...

journal_title：Biological research

authors： Lemus D,Dabancens A,Illanes J,Fuenzalida M,Guerrero A,López C

更新日期：2001-01-01 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

authors： Jara L,Ampuero S,Seccia L,Bustamante M,Blanco R,Ojeda JM

更新日期：2002-01-01 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

authors： Berenguer AG,Fernandes AT,Oliveira S,Rodrigues M,Ornelas P,Romeira D,Serrão T,Rosa A,Câmara R

更新日期：2014-09-04 00:00:00

abstract：:Three innovative and complementary morphological approaches were employed to study the T cell/antigen presenting cell (APC) interaction: (i) high resolution three-dimensional confocal microscopy of the T cell-APC contact site; (ii) time lapse video recording in living T cells of [Ca2+]I and changes in distribution of ...

journal_title：Biological research

authors： Faroudi M,Zaru R,Favier B,Valitutti S

更新日期：2002-01-01 00:00:00

abstract：:In this article, we focus on the fundamental role of vitamin C transporters for the normal delivery of vitamin C to germ cells in the adluminal compartment of seminiferous tubules. We argue that the redox status within spermatozoa or in semen is partly responsible for the etiology of infertility. In this context, anti...

journal_title：Biological research

authors： Angulo C,Maldonado R,Pulgar E,Mancilla H,Córdova A,Villarroel F,Castro MA,Concha II

更新日期：2011-01-01 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

authors： Gundogdu M,Ozrenk K,Ercisli S,Kan T,Kodad O,Hegedus A

更新日期：2014-05-30 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

authors： Defagot C,Zubin P

更新日期：1994-01-01 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

authors： Matthew A,Shmygol A,Wray S

更新日期：2004-01-01 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

authors： Labriola C,Sousa M,Cazzulo JJ

更新日期：1993-01-01 00:00:00

abstract：:Caffeic acid, rosmarinic acid and oligomers of caffeic acid with multiple catechol groups are all constituents of Salvia officinalis. Their antioxidant potential was investigated with regard to their radical scavenging activity and the stability and structure of the intermediate radicals. Pulse-radiolytic studies reve...

journal_title：Biological research

authors： Bors W,Michel C,Stettmaier K,Lu Y,Foo LY

更新日期：2004-01-01 00:00:00

abstract：:Apoptosis is a means by which organisms dispose of unwanted cells without inducing an inflammatory response. Alterations in apoptosis is a common process by which cells become cancerous. Paradoxically, many cancer chemotherapeutics preferentially kill cancer cells by inducing apoptosis. Diacylglycerol is a lipid secon...

journal_title：Biological research

authors： Wright MM,McMaster CR

更新日期：2002-01-01 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

authors： Vásquez K,Vergara M,Recabarren M,Brandeis A,Serón-Ferré M

更新日期：1997-01-01 00:00:00

abstract：BACKGROUND:Prognosis remains one of most crucial determinants of gastric cancer (GC) treatment, but current methods do not predict prognosis accurately. Identification of additional biomarkers is urgently required to identify patients at risk of poor prognoses. METHODS:Tissue microarrays were used to measure expressio...

journal_title：Biological research

authors： Li W,Chen Y,Sun X,Yang J,Zhang DY,Wang D,Suo J

更新日期：2019-08-09 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

authors： Kothari V,Seshadri S

更新日期：2010-01-01 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

authors： Xing F,Song Z,He Y

更新日期：2018-11-24 00:00:00

abstract：:This study examined the effects of estrogen supplementation on markers of neutrophil infiltration and damage in skeletal muscle of rats following ischemia. Male and female gonad-intact rats, with or without 14 days of estrogen supplementation were subjected to two hours of hind-limb ischemia and sacrificed at 24, 48 o...

journal_title：Biological research

authors： Tiidus PM,Deller M,Bombardier E,Gül M,Liu XL

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:Prunella vulgaris L. is a medical plant cultivated in sloping, sun-shaded areas in China. Recently, owing to air-environmental stress, especially drought stress strongly inhibits plant growth and development, the appropriate fertilizer supply can alleviate these effects. However, these is little information ...

journal_title：Biological research

authors： Chen Y,Liu L,Guo Q,Zhu Z,Zhang L

更新日期：2016-02-24 00:00:00

abstract：BACKGROUND:miR-214 was demonstrated to be upregulated in models of renal disease and promoted fibrosis in renal injury independent of TGF-β signaling in vivo. However, the detailed role of miR-214 in acute kidney injury (AKI) and its underlying mechanism are still largely unknown. METHODS:In this study, an I/R-induced...

journal_title：Biological research

authors： Zhu X,Li W,Li H

更新日期：2018-09-04 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

authors： Khanavi M,Nabavi M,Sadati N,Shams Ardekani M,Sohrabipour J,Nabavi SM,Ghaeli P,Ostad SN

更新日期：2010-01-01 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

authors： Urbina JA,Machin I,Jurado L

更新日期：1993-01-01 00:00:00

abstract：:Osteoporosis is a common metabolic bone disease, influenced by genetic and environmental factors, that increases bone fragility and fracture risk and, therefore, has a serious adverse effect on the quality of life of patients. However, epigenetic mechanisms involved in the development of osteoporosis remain unclear. T...

journal_title：Biological research

authors： Yang Y,Yujiao W,Fang W,Linhui Y,Ziqi G,Zhichen W,Zirui W,Shengwang W

更新日期：2020-09-16 00:00:00

abstract：:Peroxisomes are thought to be formed by division of pre-existing peroxisomes after the import of newly synthesized proteins. However, it has been recently suggested that the endoplasmic reticulum (ER) provides an alternative de novo mechanism for peroxisome biogenesis in some cells. To test a possible role of the ER-G...

journal_title：Biological research

authors： Toro A,Arredondo C,Córdova G,Araya C,Palacios JL,Venegas A,Morita M,Imanaka T,Santos MJ

更新日期：2007-01-01 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

authors： Ahmed RR,Mahmoud A,Ahmed OM,Metwalli A,Ebaid H

更新日期：2015-10-01 00:00:00

abstract：BACKGROUND:The role of interleukin family in colon cancer remained controversial. The purpose of this study was to investigate the association between interleukin family and colon cancer progression through bioinformatics methods and to validate such association in clinical patients. METHODS:A total of 15 differential...

journal_title：Biological research

authors： Wei X,Zhang Y,Yang Z,Sha Y,Pan Y,Chen Y,Cai L

更新日期：2020-05-07 00:00:00

abstract：BACKGROUND:Despite manifold benefits of nanoparticles (NPs), less information on the risks of NPs to human health and environment has been studied. Cobalt oxide nanoparticles (Co3O4-NPs) have been reported to cause toxicity in several organisms. In this study, we have investigated the role of Co3O4-NPs in inducing phyt...

journal_title：Biological research

authors： Faisal M,Saquib Q,Alatar AA,Al-Khedhairy AA,Ahmed M,Ansari SM,Alwathnani HA,Dwivedi S,Musarrat J,Praveen S

更新日期：2016-03-18 00:00:00

abstract：:Hepcidin (Hepc) is a 25 amino acid cationic peptide with broad antibacterial and antifungal actions. A likely role for Hepc in iron metabolism was suggested by the observation that mice having disruption of the gene encoding the transcription factor USF2 failed to produce Hepc mRNA and developed spontaneous visceral i...

journal_title：Biological research

authors： Mena NP,Esparza AL,Núñez MT

更新日期：2006-01-01 00:00:00

abstract：:The electrophysiological properties of neurons are determined by the expression of defined complements of ion channels. Nonetheless, the regulation mechanisms of the expression of neuronal ion channels are poorly understood, due in part to the diversity of neuron subtypes. We explored the expression of voltage-gated c...

journal_title：Biological research

authors： Olguín P,Armisen R,Kukuljan M

更新日期：2006-01-01 00:00:00

abstract：:Interstitial fluid flow stress is one of the most important mechanical stimulations of bone cells under physiological conditions. Osteocytes and osteoblasts act as primary mechanosensors within bones, and in vitro are able to respond to fluid shear stress, both morphologically and functionally. However, there is littl...

journal_title：Biological research

authors： Xu H,Zhang J,Wu J,Guan Y,Weng Y,Shang P

更新日期：2012-01-01 00:00:00

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....

journal_title：Biological research

authors： Oyarzún M,Pino P,Ortiz J,Olaeta I

更新日期：1998-01-01 00:00:00