abstract：:Diosgenin, a traditional Yam extraction, has been used in hormone replacement for menopausal women. We aimed to investigate the influences of diosgenin administration upon the MMP-2 and -9 activity and expression and reproductive hormones of ovariectomized (OVX) rats, a model of menopausal status. Seven-week old femal...

journal_title：International journal of biological sciences

authors： Chang CC,Kuan TC,Hsieh YY,Ho YJ,Sun YL,Lin CS

更新日期：2011-01-01 00:00:00

abstract：:Protein phosphatase 2A (PP2A) is a major protein phosphatase with important cell functions. Known and utilized as a potent inhibitor of PP2A, microcystin-LR (MCLR) targets PP2A as a core element that affects numerous cellular mechanisms. But apart from direct inhibition, the exact effect of MCLR on PP2A in cell is lar...

journal_title：International journal of biological sciences

authors： Li T,Huang P,Liang J,Fu W,Guo Z,Xu L

更新日期：2011-01-01 00:00:00

abstract：:Cirrhosis is the final outcome of liver fibrosis. Kupffer cell-mediated hepatic inflammation is considered to aggravate liver injury and fibrosis. Alternatively-activated macrophages are able to control chronic inflammatory events and trigger wound healing processes. Nevertheless, the role of alternative Kupffer cell ...

journal_title：International journal of biological sciences

authors： López-Navarrete G,Ramos-Martínez E,Suárez-Álvarez K,Aguirre-García J,Ledezma-Soto Y,León-Cabrera S,Gudiño-Zayas M,Guzmán C,Gutiérrez-Reyes G,Hernández-Ruíz J,Camacho-Arroyo I,Robles-Díaz G,Kershenobich D,Terrazas LI,Escobedo

更新日期：2011-01-01 00:00:00

abstract：:Pathogens have developed strategies to modify Dendritic Cells (DCs) phenotypes and impair their functions in order to create a safer environment for their survival. DCs responses to helminths and their derivatives vary among different studies. Here we show that excretory/secretory products of the cestode Taenia crassi...

journal_title：International journal of biological sciences

authors： Terrazas CA,Sánchez-Muñoz F,Mejía-Domínguez AM,Amezcua-Guerra LM,Terrazas LI,Bojalil R,Gómez-García L

更新日期：2011-01-01 00:00:00

abstract：:Sirtuins are highly conserved NAD+-dependent protein deacetylases and/or ADP-ribosyltransferases that can extend the lifespan of several lower model organisms including yeast, worms and flies. The seven mammalian sirtuins, SIRT1 to SIRT7, have emerged as key metabolic sensors that directly link environmental signals t...

journal_title：International journal of biological sciences

authors： Li X,Kazgan N

更新日期：2011-01-01 00:00:00

abstract：:The effects of hormonal and dietary stimuli on hepatic glucose and lipid homeostasis include regulation of gene expression. Berberine, an effective compound in certain Chinese medicinal herbs, has been reported to lower plasma glucose and lipid levels in diabetic and hypercholesterolemic patients. We hypothesized that...

journal_title：International journal of biological sciences

authors： Ge Y,Zhang Y,Li R,Chen W,Li Y,Chen G

更新日期：2011-01-01 00:00:00

abstract：:Thymosin alpha 1 (Tα1) has immunomodulatory and anti-tumor effects in patients and has been commercialized in worldwide. An innovative technique is therefore impending to achieve high-yield expression and purification of Tα1 to meet the increasing requirements for clinical applications. Tα1 can enhance T cells, dendri...

journal_title：International journal of biological sciences

authors： Li W,Song L,Wu S,Xue X,Zhang L,He L,Han W,Wang Q,Ling R,Zhang W,Yan Z,Zhang Y

更新日期：2011-01-01 00:00:00

abstract：:D-Xylitol is found in low content as a natural constituent of many fruits and vegetables. It is a five-carbon sugar polyol and has been used as a food additive and sweetening agent to replace sucrose, especially for non-insulin dependent diabetics. It has multiple beneficial health effects, such as the prevention of d...

journal_title：International journal of biological sciences

authors： Chen X,Jiang ZH,Chen S,Qin W

更新日期：2010-12-15 00:00:00

abstract：:Odor-detection in the malaria mosquito Anopheles gambiae involves large families of diverse proteins, including multiple odorant binding proteins (AgOBPs) and olfactory receptors (AgORs). The receptors AgOR1 and AgOR2, as well as the binding protein AgOBP1, have been implicated in the recognition of human host odors. ...

journal_title：International journal of biological sciences

authors： Schymura D,Forstner M,Schultze A,Kröber T,Swevers L,Iatrou K,Krieger J

更新日期：2010-10-08 00:00:00

abstract：PURPOSE:To test the hypothesis that cardiac morphologic differences between Ames dwarf and wild-type littermates might correlate with the increased longevity observed in the Ames dwarf mice. METHODS:Hearts removed from young adult (5-7 mo) and old (24-28 mo) Ames dwarf and wild-type littermates underwent histological ...

journal_title：International journal of biological sciences

authors： Helms SA,Azhar G,Zuo C,Theus SA,Bartke A,Wei JY

更新日期：2010-09-01 00:00:00

abstract：:Recent studies have reported that cancer stem cells (CSCs) could be isolated from solid cancer cell lines, in which the purity of CSCs was higher than that from tumor tissues. Separation of CSCs from leukemic cell lines was rarely reported. In this study, CD34(+)CD38(-)stem-like cell subsets in human KG-1a leukemic ce...

journal_title：International journal of biological sciences

authors： Zhang L,Yang S,He YJ,Shao HY,Wang L,Chen H,Gao YJ,Qing FX,Chen XC,Zhao LY,Tan S

更新日期：2010-08-03 00:00:00

abstract：:TAR DNA-binding protein (TDP-43) and fused in sarcoma (FUS) are two highly conserved ribonucleoproteins. Pathogenic mutations of the TDP-43 or the FUS gene are all linked to amyotrophic lateral sclerosis (ALS) that is characterized by progressive degeneration of motor neurons. To better understand the correlation of A...

journal_title：International journal of biological sciences

authors： Huang C,Xia PY,Zhou H

更新日期：2010-07-04 00:00:00

abstract：:Cardiac and skeletal muscle tissue engineering provides a smart approach to overcome problems associated with organ transplantation and cardiac tissue and also lays a platform for superior alternative approaches in muscle regeneration. The aim of the study was to demonstrate cryogel scaffold potential in the field of ...

journal_title：International journal of biological sciences

authors： Singh D,Nayak V,Kumar A

更新日期：2010-07-03 00:00:00

abstract：:Transforming growth factor-beta (TGF-beta) family members exert their function via specific type I and type II serine/threonine kinase receptors and intracellular Smad transcription factors, including the common mediator Smad4. The dual effects of TGF-beta signaling on tumor initiation and progression are cell-specifi...

journal_title：International journal of biological sciences

authors： Yang G,Yang X

更新日期：2010-01-01 00:00:00

abstract：:Proteomic profiling of the pectoralis muscle of Thai indigenous chickens during growth period was analyzed using two-dimensional gel electrophoresis (2-DE) and matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF/MS). A total of 259, 161, 120 and 107 protein spots were found to be ex...

journal_title：International journal of biological sciences

authors： Teltathum T,Mekchay S

更新日期：2009-10-28 00:00:00

abstract：:Apolipoprotein A-I (apoA-I) mimetic peptides have been pursued as new therapeutic agents for the treatment of atherosclerosis, yet their precise mechanism responsible for atheroprotection remains unclear. Like apoA-I itself, most of these peptides are capable of stimulating cholesterol efflux from macrophages or foam ...

journal_title：International journal of biological sciences

authors： Song X,Fischer P,Chen X,Burton C,Wang J

更新日期：2009-10-09 00:00:00

abstract：:The development of alternative energy technology is critically important because of the rising prices of crude oil, security issues regarding the oil supply, and environmental issues such as global warming and air pollution. Bioconversion of biomass has significant advantages over other alternative energy strategies b...

journal_title：International journal of biological sciences

authors： Dashtban M,Schraft H,Qin W

更新日期：2009-09-04 00:00:00

abstract：:Chronic back pain is a global health problem affecting millions of people worldwide and carries significant economic and social morbidities. Intervertebral disc damage and degeneration is a major cause of back pain, characterised by histological and biochemical changes that have been well documented in animal models. ...

journal_title：International journal of biological sciences

authors： Wei A,Williams LA,Bhargav D,Shen B,Kishen T,Duffy N,Diwan AD

更新日期：2009-06-03 00:00:00

abstract：:Pacemaker activity of the sinoatrial node has been studied extensively in various animal species, but is virtually unexplored in man. As such, it is unknown whether the fast sodium current (I(Na)) plays a role in the pacemaker activity of the human sinoatrial node. Recently, we had the unique opportunity to perform pa...

journal_title：International journal of biological sciences

authors： Verkerk AO,Wilders R,van Borren MM,Tan HL

更新日期：2009-01-01 00:00:00

abstract：:The p38 MAPK kinase pathway is activated in response to a wide range of cellular stress stimuli and cytokines. Our understanding of the important functions of p38 MAPK in the process of differentiation and cell death has grown considerably in the recent years and is now relatively established. Here we discuss the role...

journal_title：International journal of biological sciences

authors： Thornton TM,Rincon M

更新日期：2009-01-01 00:00:00

abstract：:The objective of this work was to evaluate the bioavailability of heme iron added to biscuit filling. It comprised two stages: first, the development of the heme iron enriched biscuit filling; second, the evaluation of the bioavailability of the mineral in fattening piglets. Two groups were selected randomly and fed: ...

journal_title：International journal of biological sciences

authors： Quintero-Gutiérrez AG,González-Rosendo G,Sánchez-Muñoz J,Polo-Pozo J,Rodríguez-Jerez JJ

更新日期：2008-02-18 00:00:00

abstract：:The gene encoding PDX1 (pancreatic duodenum homeobox 1), the main transcription factor regulating the glucose-dependent transactivation of the insulin promoter in pancreatic beta-cells, clusters with two closely related homeobox genes (Gsh1 and Cdx2/3), all of them belonging to the ParaHox gene family. The ParaHox gen...

journal_title：International journal of biological sciences

authors： Rosanas-Urgell A,Garcia-Fernàndez J,Marfany G

更新日期：2008-02-06 00:00:00

abstract：:Growth factors are currently evaluated as therapeutics in stroke and neurodegeneration. Besides direct neurotrophic effects, they promote proliferation, survival, and differentiation of both transplanted and endogenous neural precursor cells (NPCs). In the current study, we investigated whether NPCs expressing Vascula...

journal_title：International journal of biological sciences

authors： Maurer MH,Thomas C,Bürgers HF,Kuschinsky W

更新日期：2007-12-03 00:00:00

abstract：:Although it has been widely applied in identification of genes responsible for biomedically, economically, or even evolutionarily important complex and quantitative traits, traditional candidate gene approach is largely limited by its reliance on the priori knowledge about the physiological, biochemical or functional ...

journal_title：International journal of biological sciences

authors： Zhu M,Zhao S

更新日期：2007-10-25 00:00:00

abstract：:Thermal injury (TI) with septic complications continues to be a serious clinical problem. One of the main concerns in such patients is immunosuppression related to functional derangements in intestinal CD4+ T lymphocytes. Extensive previous studies in thermal injury/septic patients and animal models of thermal injury/...

journal_title：International journal of biological sciences

authors： Fazal N,Al-Ghoul WM

更新日期：2007-09-12 00:00:00

abstract：:Tyrosylprotein sulfotransferase (TPST), responsible for the sulfation of a variety of secretory and membrane proteins, has been identified and characterized in submandibular salivary glands (William et al. Arch Biochem Biophys 1997; 338: 90-96). In the present study we demonstrate the sulfation of a salivary secretory...

journal_title：International journal of biological sciences

authors： Kasinathan C,Gandhi N,Ramaprasad P,Sundaram P,Ramasubbu N

更新日期：2007-03-02 00:00:00

abstract：:Mutations in the gene ELOVL4 have been shown to cause stargardt-like macular dystrophy. ELOVL4 is part of a family of fatty acid elongases and is yet to have a specific elongase activity assigned to it. We generated Elovl4 Y270X mutant mice and characterized the homozygous mutant as well as homozygous Elovl4 knockout ...

journal_title：International journal of biological sciences

authors： Cameron DJ,Tong Z,Yang Z,Kaminoh J,Kamiyah S,Chen H,Zeng J,Chen Y,Luo L,Zhang K

更新日期：2007-02-06 00:00:00

abstract：:The Zucker diabetic fatty (ZDF) rat is a model of type II diabetes and metabolic syndrome based on impaired glucose tolerance caused by the inherited insulin-resistance gene. The ZDF rat exhibits progressive nephropathy; however, the detailed mechanisms have remained unclear. This study was performed to examine the po...

journal_title：International journal of biological sciences

authors： Suzaki Y,Ozawa Y,Kobori H

更新日期：2006-11-01 00:00:00

abstract：OBJECTIVES:Reactive oxygen species (ROS) induced lipid peroxidation is associated with sperm function. Malondialdehyde (MDA) concentration and glutathione peroxidase (GPx) activity represent the lipid peroxidation and spermicidal antioxidant, respectively. We aimed to evaluate the relationship of MDA and GPx levels wit...

journal_title：International journal of biological sciences

authors： Hsieh YY,Chang CC,Lin CS

更新日期：2006-01-01 00:00:00

abstract：:The cephalochordate amphioxus occupies a central place in evolutionary thoughts to the origin of Vertebrates. With a prototypical vertebrate-like body plan and a preduplicative genome, the friendly lancelet seems to be in morphological and genetic motionless since its separation from the major branch of evolution that...

journal_title：International journal of biological sciences

authors： Garcia-Fernàndez J

更新日期：2006-01-01 00:00:00

abstract：:Wee1 kinase regulates the G2/M cell cycle checkpoint by phosphorylating and inactivating the mitotic cyclin-dependent kinase 1 (Cdk1). Loss of Wee1 in many systems, including yeast and drosophila, leads to premature mitotic entry. However, the developmental role of Wee1 in mammals remains unclear. In this study, we es...

journal_title：International journal of biological sciences

authors： Tominaga Y,Li C,Wang RH,Deng CX

更新日期：2006-01-01 00:00:00

abstract：:A LIM-homeobox gene, AmphiLim1/5, from the Florida amphioxus (Branchiostoma floridae) encodes a protein that phylogenetic analysis positions at the base of a clade comprising vertebrate Lim1 and Lim5. Amphioxus AmphiLim1/5 is expressed in domains that are a composite of those of vertebrate Lim1 and Lim5, which evident...

journal_title：International journal of biological sciences

authors： Langeland JA,Holland LZ,Chastain RA,Holland ND

更新日期：2006-01-01 00:00:00

abstract：:The heterotrimeric G-protein alpha subunit has long been considered a bimodal, GTP-hydrolyzing switch controlling the duration of signal transduction by seven-transmembrane domain (7TM) cell-surface receptors. In 1996, we and others identified a superfamily of "regulator of G-protein signaling" (RGS) proteins that acc...

journal_title：International journal of biological sciences

authors： Siderovski DP,Willard FS

更新日期：2005-01-01 00:00:00