Plant regeneration of natural tetraploid Trifolium Hum pratense L.

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：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：:Bilateral aspiration lesions of the fimbria-fornix were performed in 10 male Sprague Dawley rats weighing 240-300 g under chloral hydrate narcose (420 mg/kg). Another 9 animals were operated in the same way, but no aspiration was carried out to constitute a control group. A week after surgery recording and stimulation...

journal_title：Biological research

authors： Bergado JA,Moreno H,Nuñez N

更新日期：1996-01-01 00:00:00

abstract：:The development of plant transformation in the mid-1980s and of many new tools for cell biology, molecular genetics, and biochemistry has resulted in enormous progress in plant biology in the past decade. With the completion of the genome sequence of Arabidopsis thaliana just around the corner, we can expect even fast...

journal_title：Biological research

authors： Chrispeels MJ,Holuigue L,Latorre R,Luan S,Orellana A,Peña-Cortes H,Raikhel NV,Ronald PC,Trewavas A

更新日期：1999-01-01 00:00:00

abstract：:The species Heteropterys aphrodisiaca is commonly used as a stimulant by popular medicine in the Cerrado, a savanna-like biome, Brazil. Recent studies have proved its protective effects on testes of animals submitted to treatment using Cyclosporine A, as well as its stimulus effect in increasing testosterone secretion...

journal_title：Biological research

authors： Gomes ML,Monteiro JC,Freitas KM,Sbervelheri MM,Dolder H

更新日期：2011-01-01 00:00:00

abstract：:Most Colombian populations stem from the admixture of Caucasians, Amerindians and Negroids. In the world, these two latter ethnical groups show a significantly higher prevalence of epilepsy than the former one. We tested the hypothesis that the high prevalence of idiopathic epilepsy with generalized tonic clonic seizu...

journal_title：Biological research

authors： Jiménez I,Mora O,Lopez G,Jiménez ME,Zuluga L,Isaza R,Sanchez JL,Uribe CS,Valenzuela CY,Blanco R,Arcos-Burgos M

更新日期：1996-01-01 00:00:00

abstract：:The protein nucleolin, functionally involved in the main steps of ribosome biogenesis, is codified by a single copy gene in mammals. Here we report that at least three different genes codify for this protein in carp fish (Cyprinus carpio). This is the first description of the genomic organization of nucleolin in a tel...

journal_title：Biological research

authors： Quezada C,Navarro C,San Martín R,Alvarez M,Molina A,Vera MI

更新日期：2006-01-01 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

authors： Zhao X,Chen M,Tan J

更新日期：2016-05-13 00:00:00

abstract：:Shigella flexneri causes bacillary dysentery in humans. Essential to the establishment of the disease is the invasion of the colonic epithelial cells. Here we investigated the role of the lipopolysaccharide (LPS) O antigen in the ability of S. flexneri to adhere to and invade polarized Caco-2 cells. The S. flexneri 2a...

journal_title：Biological research

authors： Hoare A,Bravo D,Martinić M,Valvano MA,Contreras I,Álvarez SA

更新日期：2012-01-01 00:00:00

abstract：:X-Ray diffraction is the only method currently available for the determination of the detailed three-dimensional structure of macromolecules. In this article, the principles behind the use of X-ray crystallography in the study of protein structure are presented. The results obtained in its application to several enzym...

journal_title：Biological research

authors： Cid H

更新日期：1996-01-01 00:00:00

abstract：:The ascorbate-glutathione (ASC-GSH) cycle has an important role in defensive processes against oxidative damage generated by drought stress. In this study, the changes that take place in apoplastic and symplastic ASC-GSH cycle enzymes of the leaf and petiole were investigated under drought stress causing leaf rolling ...

journal_title：Biological research

authors： Saruhan N,Terzi R,Saglam A,Kadioglu A

更新日期：2009-01-01 00:00:00

abstract：:Angiotensin-(1-7) [Ang-(1-7)] possesses novel biological functions that are distinct from angiotensin II (Ang II). In coronary arteries, the octapeptide Ang II and the heptapeptide Ang-(1-7) exert opposing actions. Ang II elicits vasoconstriction and Ang-(1-7) is a vasodilator. Ang-(1-7) elicits vasodilation by an end...

journal_title：Biological research

authors： Brosnihan KB,Li P,Tallant EA,Ferrario CM

更新日期：1998-01-01 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

authors： Ru-Fei G,Xue-Qing L,Ying-Xiong W,Xue-Mei C,Yu-Bin D,Jun-Lin H

更新日期：2012-01-01 00:00:00

abstract：BACKGROUND:Understanding the molecular basis underlying the formation of bone-forming osteocytes and lipid-storing adipocytes will help provide insights into the cause of disorders originating in stem/progenitor cells and develop therapeutic treatments for bone- or adipose-related diseases. In this study, the role of R...

journal_title：Biological research

authors： Madrigal A,Tan L,Zhao Y

更新日期：2017-12-26 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：: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：:Hematopoietic stem cell transplantation is the accepted therapy of choice for a variety of malignant and non-malignant diseases in children and adults. Initially developed as rescue therapy for a patient with cancer after high doses of chemotherapy and radiation as well as the correction of severe deficiencies in the ...

journal_title：Biological research

authors： Barriga F,Ramírez P,Wietstruck A,Rojas N

更新日期：2012-01-01 00:00:00

abstract：:Oxidative stress occurs early in the progression of Alzheimer disease, significantly before the development of the pathologic hallmarks, neurofibrillary tangles and senile plaques. In the first stage of development of the disease, amyloid-beta deposition and hyperphosphorylated tau function as compensatory responses a...

journal_title：Biological research

authors： Moreira PI,Zhu X,Liu Q,Honda K,Siedlak SL,Harris PL,Smith MA,Perry G

更新日期：2006-01-01 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：: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：:The aim of this study is to describe the ultrastructural changes of the egg apparatus associated with fertilisation of the natural tetraploid Trifolium pratense. The pollen tube enters one of the synergids through the filliform apparatus from the micropyle. Before the entry of the pollen tube into the embryo sac, one ...

journal_title：Biological research

authors： Buyukkartal HN

更新日期：2009-01-01 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

authors： González-Nilo F,Pérez-Acle T,Guínez-Molinos S,Geraldo DA,Sandoval C,Yévenes A,Santos LS,Laurie VF,Mendoza H,Cachau RE

更新日期：2011-01-01 00:00:00

abstract：:The hypothesis that the vacation-study-expectancy scholar regime produces most of the monthly rhythm of the age at menarche (AaM) was tested. Studies on monthly menarche incidence (MI) refuted climatic factors as a main factor in this rhythm, and indicated that the main factor of this rhythm is the succession of expec...

journal_title：Biological research

authors： Valenzuela CY

更新日期：2013-01-01 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：:Object recognition memory allows discrimination between novel and familiar objects. This kind of memory consists of two components: recollection, which depends on the hippocampus, and familiarity, which depends on the perirhinal cortex (Pcx). The importance of brain-derived neurotrophic factor (BDNF) for recognition m...

journal_title：Biological research

authors： Muñoz PC,Aspé MA,Contreras LS,Palacios AG

更新日期：2010-01-01 00:00:00

abstract：BACKGROUND:Previous studies have shown that long noncoding RNA (lncRNA) LINC00483 was aberrantly expressed in human cancers, including gastric cancer. However, the regulatory mechanism of this lncRNA in gastric cancer remains largely unknown. The present study aimed to investigate the effect of LINC00483 on gastric can...

journal_title：Biological research

authors： Luo M,Liang C

更新日期：2020-04-15 00:00:00

abstract：:Guanine nucleotide binding proteins (GTP-binding proteins) function as transducers of signals in different cellular processes. We have identified several GTP-binding proteins in Trypanosoma cruzi by Western blot analyses. Six polypeptide bands, p20, p25, p28, p31, p37 and p38, were specifically detected in epimastigot...

journal_title：Biological research

authors： Bubis J,Millan EJ,Martinez R

更新日期：1993-01-01 00:00:00

abstract：BACKGROUND:Ubiquitin specific peptidase 39 (USP39), an essential factor in the assembly of the mature spliceosome complex, has an aberrant expression in several cancer. However, its function and the corresponding mechanism on human osteosarcoma has not been fully explored yet. METHODS:The mRNA and DNA copies of USP39 ...

journal_title：Biological research

authors： Gan Z,Han K,Lin S,Hu H,Shen Z,Min D

更新日期：2017-04-12 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：:Twelve biological variables were submitted to dimensional analysis in accordance with the MLT-system of physics (M, mass; L, length; T, time). Each of these variables has a characteristic numerical value for the exponents alpha for mass, beta for length, and gamma for time. By means of Newton's reduction coefficient (...

journal_title：Biological research

authors： Günther B,Gonzalez U,Morgado E

更新日期：1992-01-01 00:00:00