CD4+ T cells in aged or thymectomized recipients of allogeneic stem cell transplantations.

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

authors： Zaidel DW

更新日期：1995-01-01 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 regeneration of natural tetraploid T. pratense, originated from Erzurum-Turkey, is reported in this study. This plant has low seed setting and hard seed problems due to polyploidy. Hypocotyl, cotyledon, apical meristems, epicotyl and young primary leaves were inoculated on MS and PC-L2 media containing different c...

journal_title：Biological research

authors： Cölgeçen H,Toker MC

更新日期：2008-01-01 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：: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:chronic hypoxia increases basal ventilation and pulmonary vascular resistance, with variable changes in arterial blood pressure and heart rate, but it's impact on heart rate variability and autonomic regulation have been less well examined. We studied changes in arterial blood pressure, heart rate and heart ...

journal_title：Biological research

authors： Alcayaga J,Del Rio R,Moya EA,Freire M,Iturriaga R

更新日期：2018-12-20 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

authors： Günther B,Morgado E,Cociña M

更新日期：2005-01-01 00:00:00

abstract：:In the last twenty years an important effort in brain sciences, especially in cognitive science, has been the development of mathematical tool that can deal with the complexity of extensive recordings corresponding to the neuronal activity obtained from hundreds of neurons. We discuss here along with some historical i...

journal_title：Biological research

authors： Goles E,Palacios AG

更新日期：2007-01-01 00:00:00

abstract：:The objective of this study was to test the hypothesis that root of maguey (Agave salmiana Otto ex Salm-Dyck) seedlings reacts during the first 24 h to low substrate water potential (PsiW), by anatomical modifications. Three-4 cm root length seedlings were planted in vermiculite for 24 h at PsiW between -0.03 and -2.3...

journal_title：Biological research

authors： Peña-Valdivia CB,Sánchez-Urdaneta AB

更新日期：2009-01-01 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：BACKGROUND:The root of Angelica sinensis (AS), also known as "Dang-gui," was a popular herbal medicine widely used in the treatment of gynecological diseases in China, Korea, and Japan for a long time. This study aimed to determine the effects of ethyl acetate fraction from Angelica sinensis (EAAS) on the interleukin-1...

journal_title：Biological research

authors： Lee WS,Lim JH,Sung MS,Lee EG,Oh YJ,Yoo WH

更新日期：2014-09-05 00:00:00

abstract：:Red blood cell carbonic anhydrase (CA) activity has not been studied in high altitude natives. Because CA is an intraerythocytic enzyme and high altitude natives are polycythemic, it is important to know if the activity of CA per red cell volume is different from that of their sea level counterparts. Blood was collect...

journal_title：Biological research

authors： Gamboa J,Caceda R,Gamboa A,Monge-C C

更新日期：2000-01-01 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

authors： Fiuza TS,Silva PC,Paula JR,Tresvenzol LM,Sabóia-Morais SM

更新日期：2009-01-01 00:00:00

abstract：:Many motor skills, once acquired, are stored over a long time period, probably sustained by permanent neuronal changes. Thus, in this paper we have investigated with quantitative stereology the generation and persistence of neuronal density changes in primary motor cortex (MI) following motor skill learning (skilled r...

journal_title：Biological research

authors： Morales P

更新日期：2008-01-01 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

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：:Skeletal muscles have the potential to regenerate by activation of quiescent satellite cells, however, the molecular signature that governs satellite cells during muscle regeneration is not well defined. Myosin light chains (Myls) are sarcomere-related proteins as traditional regulator of muscle contraction. In this r...

journal_title：Biological research

authors： Zhang SZ,Xu Y,Xie HQ,Li XQ,Wei YQ,Yang ZM

更新日期：2009-01-01 00:00:00

abstract：:Oxidant/antioxidant imbalance has been reported in some infectious diseases, including community-acquired pneumonia (CAP). The aim was to assess the antioxidant status in adults with CAP and its relationship with clinical severity at admission. Fifty-nine patients with CAP were enrolled and categorized at admission by...

journal_title：Biological research

authors： Castillo RL,Carrasco RA,Alvarez PI,Ruiz M,Luchsinger V,Zunino E,Martínez MA,Avendaño LF

更新日期：2013-01-01 00:00:00

abstract：:The anti-tumor effect of R-Phycoerythrin (R-PE) from Porphyra haitanensis was studied using cell line HeLa as an in vitro model and Sarcoma-180 (S180) tumor-bearing mice as an in vivo model. The results showed that the combination treatment of R-PE and photodynamic therapy PDT) significantly inhibited the growth of He...

journal_title：Biological research

authors： Pan Q,Chen M,Li J,Wu Y,Zhen C,Liang B

更新日期：2013-01-01 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:The characterization of the dynamic process of veins walls is essential to understand venous functioning under normal and pathological conditions. However, little work has been done on dynamic venous properties. AIM:To characterize vein compliance (C), viscosity (eta), peak-strain (W St) and dissipated (W(D...

journal_title：Biological research

authors： Zócalo Y,Bia D,Lluberas S,Armentano RL

更新日期：2008-01-01 00:00:00

abstract：:Calcium regulation of several transcription factors involves different calcium-dependent signaling cascades and engages cytoplasmic as well as nuclear calcium signals. The study of the specific sources of calcium signals involved in regulation of gene expression in skeletal muscle has been addressed only recently. In ...

journal_title：Biological research

authors： Carrasco MA,Jaimovich E,Kemmerling U,Hidalgo C

更新日期：2004-01-01 00:00:00

abstract：:The historical, lexical and conceptual issues embedded in stem cell biology are reviewed from technical, ethical, philosophical, judicial, clinical, economic and biopolitical perspectives. The mechanisms assigning the simultaneous capacity to self-renew and to differentiate to stem cells (immortal template DNA and asy...

journal_title：Biological research

authors： Monti M,Perotti C,Del Fante C,Cervio M,Redi CA,Fondazione IRCCS Policlinico San Matteo, Pavia (Italia).

更新日期：2012-01-01 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：BACKGROUND:Tear desiccation on a glass surface followed by transmitted-light microscopy has served as diagnostic test for dry eye. Four distinctive morphological domains (zones I, II, III and transition band) have been recently recognized in tear microdesiccates. Physicochemical dissimilarities among those domains hamp...

journal_title：Biological research

authors： Traipe-Salas F,Traipe-Castro L,Salinas-Toro D,López D,Valenzuela F,Cartes C,Toledo-Araya H,Pérez C,López Solís R

更新日期：2016-06-03 00:00:00

abstract：BACKGROUND:The Tridax procumbens flavonoids (TPF), are well known for their medicinal properties among local natives. The TPF are traditionally used for dropsy, anaemia, arthritis, gout, asthma, ulcer, piles, and urinary problems. It also used in treating gastric problems, body pain, and rheumatic pains of joints. The ...

journal_title：Biological research

authors： Al Mamun MA,Islam K,Alam MJ,Khatun A,Alam MM,Al-Bari MA,Alam MJ

更新日期：2015-09-12 00:00:00

abstract：BACKGROUND:Pancreatic ductal adenocarcinoma (PDAC) is highly aggressive with poor prognosis. Long non-coding RNAs (lncRNAs), a group of non-coding RNAs, play important roles in the progression of PDAC. This study aimed to investigate the potential involvement of lncRNA CCAT2 in PDAC tumorigenesis. METHODS:Expression o...

journal_title：Biological research

authors： Cai Y,Li X,Shen P,Zhang D

更新日期：2018-01-03 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：: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：: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

authors： Nuñez MT,Garate MA,Arredondo M,Tapia V,Muñoz P

更新日期：2000-01-01 00:00:00