显示 1-30 共 153 条结果 关于 "GF71274258"
Jason M Sobota et al.
Journal of bacteriology, 196(11), 1980-1991 (2014-03-25)
In Escherichia coli, aromatic compound biosynthesis is the process that has shown the greatest sensitivity to hydrogen peroxide stress. This pathway has long been recognized to be sensitive to superoxide as well, but the molecular target was unknown. Feeding experiments...
Yassine Chtourou et al.
Environmental toxicology, 29(10), 1147-1154 (2013-01-23)
Metal toxicity may occur after exposure from many sources. Oxidative stress is thought to be involved in manganese-induced toxicity and leads to various health disorders. Silymarin (SIL), a natural flavonoid, has been reported to have many benefits and medicinal properties....
Syed Moshfiqur Rahman et al.
Reproductive toxicology (Elmsford, N.Y.), 53, 68-74 (2015-04-02)
The essential element manganese (Mn) might be toxic at excess exposure. We assessed the impact of elevated Mn exposure through drinking water during pregnancy on birth size in a population-based cohort(n = 1695) in rural Bangladesh. Concentrations of water Mn...
Y Chen et al.
Free radical research, 49(10), 1275-1284 (2015-06-30)
Mitochondrial oxidative damage is hypothesized to contribute to the pathogenesis of chronic cholestatic liver diseases. Melatonin, an indolamine synthesized in the pineal gland, shows a wide range of physiological functions, and is under clinical investigation for expanded applications. Melatonin has...
M W Roomi et al.
International journal of oncology, 44(3), 986-992 (2014-01-01)
Strong clinical and experimental evidence demonstrates association of elevated levels of matrix metalloproteinase MMP-9 with cancer progression, metastasis and shortened patient survival, as it plays a key role in tumor cell invasion and metastasis by digesting the basement membrane and...
Tiebing Liu et al.
PloS one, 10(7), e0133622-e0133622 (2015-07-18)
The etiology and pathophysiology of schizophrenia remain obscure. This study explored the associations between schizophrenia risk and serum levels of 10 trace elements. A 1:1 matched case-control study was conducted and matched by age and sex. Blood samples were collected...
Majid Motaghinejad et al.
Fundamental & clinical pharmacology, 29(3), 299-309 (2015-04-08)
Chronic consumption of morphine induces physical dependency, anxiety, and neurodegeneration. In this study, morphine on its own has been used for the management of morphine-induced dependency, oxidative stress, and apoptosis. Forty-eight male rats were randomly divided into six groups. Rats...
Masakazu Nakamura et al.
Clinica chimica acta; international journal of clinical chemistry, 439, 185-190 (2014-12-03)
Accurate high-density lipoprotein cholesterol (HDL-C) measurements are important for management of cardiovascular diseases. The US Centers for Disease Control and Prevention (CDC) and Cholesterol Reference Method Laboratory Network (CRMLN) perform ultracentrifugation (UC) reference measurement procedure (RMP) to value assign HDL-C....
M Sidoryk-Wegrzynowicz et al.
Journal of internal medicine, 273(5), 466-477 (2013-01-31)
Manganese (Mn) is an essential trace element that is required for maintaining proper function and regulation of numerous biochemical and cellular reactions. Despite its essentiality, at excessive levels Mn is toxic to the central nervous system (CNS). Increased accumulation of...
Shu-Hui Dai et al.
International journal of molecular sciences, 15(8), 14591-14609 (2014-09-10)
Oxidative stress is a well-established event in the pathology of several neurobiological diseases. Sirt3 is a nicotinamide adenine nucleotide (NAD+)-dependent protein deacetylase that regulates mitochondrial function and metabolism in response to caloric restriction and stress. This study aims to investigate...
Lisa M Yates et al.
Chembiochem : a European journal of chemical biology, 16(3), 415-423 (2015-02-03)
Protein pyrophosphorylation is emerging as a new post-translational modification, yet its role in cellular signaling remains poorly characterized. Important factors in determining the biological relevance of pyrophosphorylation include understanding the chemical and biochemical stability of the pyrophosphoryl group and elucidating...
Haiping Zhao et al.
Stroke, 45(8), 2417-2424 (2014-07-12)
Ischemic postconditioning (IPostC) protects against ischemic brain injury. To date, no study has examined the role of T-LAK-cell-originated protein kinase (TOPK) in IPostC-afforded neuroprotection. We explored the molecular mechanism related with TOPK in antioxidant effect of IPostC against ischemia/reperfusion. Focal...
Wynne Q Zhang et al.
Neuropharmacology, 90, 1-8 (2014-12-03)
Clinical evidence indicates brain serotonin (5-HT) stores and neurotransmission may be inadequate in subpopulations of individuals with autism, and this may contribute to characteristically impaired social behaviors. Findings that depletion of the 5-HT precursor tryptophan (TRP) worsens autism symptoms support...
Yong-Seok Han et al.
International journal of cardiology, 198, 187-195 (2015-07-15)
Mesenchymal stem cells (MSCs) have the potential to differentiate into multiple cell lineages. Given this potential for tissue regeneration, MSC-based therapeutic applications have been considered in recent years. However, ischemia-induced apoptosis has been reported to be one of the main...
Tao Guo et al.
Scientific reports, 5, 8016-8016 (2015-01-27)
Bone homeostasis is maintained by the balance of osteoblasts (OBs) and osteoclasts (OCs). Increased activity of OCs not only contributes to pathological bone resorption, such as osteoporosis and periodontitis, but also is responsible for physiological conditions like orthodontic tooth movement...
Julia E Martin et al.
PLoS genetics, 11(3), e1004977-e1004977 (2015-03-17)
Escherichia coli does not routinely import manganese, but it will do so when iron is unavailable, so that manganese can substitute for iron as an enzyme cofactor. When intracellular manganese levels are low, the cell induces the MntH manganese importer...
Nicholas Cox et al.
Science (New York, N.Y.), 345(6198), 804-808 (2014-08-16)
The photosynthetic protein complex photosystem II oxidizes water to molecular oxygen at an embedded tetramanganese-calcium cluster. Resolving the geometric and electronic structure of this cluster in its highest metastable catalytic state (designated S3) is a prerequisite for understanding the mechanism...
J F Zhang et al.
Journal of animal science, 93(4), 1656-1665 (2015-05-29)
A total of 400 1-d-old Arbor Acres broiler chicks were raised at a recommended environmental temperature from d 1 to 20 (experimental day [ED] = ED1 to ED20). On ED21, the chicks were weighed and reallocated into 5 treatment groups...
Snežana Tepavčević et al.
Endocrine, 50(1), 193-201 (2015-02-24)
Polycystic ovary syndrome (PCOS) is associated with an altered plasma lipid profile and increased risk for cardiovascular diseases. We hypothesized that molecular mechanisms underlying cardiac pathology in PCOS involve changes in expression and subcellular localization of several key proteins involved...
Jingjing Xie et al.
Poultry science, 93(4), 959-969 (2014-04-08)
Manganese is an essential microelement. Manganese deficiency affects reproduction performance and reproductive hormones in layers. However, little is known about its effects and the possible mechanism in regulating reproduction in broiler breeder hens. In the current study, broiler breeder hens...
Christian Nyrop Albers et al.
Water research, 83, 61-70 (2015-07-01)
Groundwater is an important drinking water resource. Yet, this resource is threatened by pollution from chemicals, such as pesticides and their degradation products. To investigate the potential for remediation of groundwater polluted by trace concentrations of the pesticide residue 2,6-dichlorobenzamide...
Ebany J Martinez-Finley et al.
Free radical biology & medicine, 62, 65-75 (2013-02-12)
Manganese (Mn) is an essential dietary nutrient, but an excess or accumulation can be toxic. Disease states, such as manganism, are associated with overexposure or accumulation of Mn and are due to the production of reactive oxygen species, free radicals...
Xiang Sheng et al.
Biochemistry, 53(27), 4455-4466 (2014-06-26)
Pyruvate carboxylase (PC) catalyzes the carboxylation of pyruvate to produce oxaloacetate. Its activity is directly related to insulin release and thus PC has recently attracted great interest as a potential target for diabetes treatment. In this article, the catalytic mechanism...
Johny Nicolas et al.
Environmental science. Processes & impacts, 17(11), 1952-1958 (2015-09-26)
The wide application and production of nanotechnology have increased the interest in studying the toxicity of nano- and micro-sized particles escaping into air from various aspects of the production process. Metal oxides (MOs) are one particular class of particles that...
Robert E Brennan et al.
BMC microbiology, 15, 99-99 (2015-05-13)
Periplasmically localized copper-zinc co-factored superoxide dismutase (SodC) enzymes have been identified in a wide range of Gram-negative bacteria and are proposed to protect bacteria from exogenously produced toxic oxygen radicals, which indicates the potential significance of a Coxiella burnetii SodC....
Priyanka Singh et al.
Antonie van Leeuwenhoek, 108(3), 711-720 (2015-07-15)
The type strain DCY99(T) was isolated from soil collected from a ginseng field in Hwacheon, Republic of Korea. Strain DCY99(T) is Gram-negative, non-spore forming, motile, rod-shaped, and strictly aerobic. The bacteria grow optimally at 25-30 °C and pH 6.0-6.5. Phylogenetically...
Qi Ye et al.
Environmental toxicology and pharmacology, 40(1), 333-341 (2015-07-21)
Manganese in excess promotes unstable emotional behavior. Our previous study showed that olfactory manganese uptake into the brain is altered in Hfe(-/-) mice, a model of iron overload hemochromatosis, suggesting that Hfe deficiency could modify the neurotoxicity of airborne manganese....
Aldo Nicosia et al.
BioMed research international, 2015, 437328-437328 (2015-02-24)
Due to anthropogenic activities the relative concentrations of cadmium and manganese have increased in the marine environment. Cephalopods are able to accumulate such metals and, as inhabitant of coastal waters, Octopus vulgaris is continuously exposed to anthropogenic activities. Since no...
Mirna Lechpammer et al.
Annals of neurology, 75(4), 608-612 (2014-03-07)
We followed a patient with manganese transporter deficiency due to homozygous SLC30A10 mutations from age 14 years until his death at age 38 years and present the first postmortem findings of this disorder. The basal ganglia showed neuronal loss, rhodanine-positive...
Michael Challenor et al.
Biochimie, 112, 160-171 (2015-03-21)
Glutamate excitotoxicity contributes to damage following injury to the central nervous system via mechanisms including changes in the expression of receptors, calcium overload, oxidative stress and cell death. Excitotoxicity is triggered by glutamate binding to receptors, including calcium permeable AMPA...

社交媒体

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

Merck

科研、开发、生产。

作为生命科学行业的全球领先供应商,我们致力于为科研、生物技术开发和生产,以及制药药物疗法开发和生产提供各类解决方案和服务。

© 2021年版权归德国达姆施塔特默克集团(Merck KGaA)及/或其附属公司所有。版权所有。

未经许可,严禁复制本网站上的任何资料。