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991.
Goodwin D Hrubec TC Klein BG Strobl JS Werre SR Han Q Zajac AM Lindsay DS 《The Journal of parasitology》2012,98(4):706-712
We examined the effect of maternal Toxoplasma gondii infection on behavior and the neurotransmitter concentrations of congenitally infected CD-1 mice at 4 and 8 wk of age when latent tissue cysts would be present in their brains. Because of sex-associated behavioral changes that develop during aging, infected female mice were compared with control females and infected male mice were compared with control males. Only the short memory behavior (distance between goal box and first hole investigated) of male mice congenitally infected with T. gondii was significantly different (P < 0.05) from that of uninfected control males at both 4 and 8 wk by using the Barnes maze test. The other parameters examined in the latter test, i.e., functional observational battery tests, virtual cliff, visual placement, and activity tests, were not significantly different (P > 0.05) at 4 and 8 wk. Concentrations of neurotransmitters and their metabolites (dopamine; 3,4-dihydroxyphenylacetic acid; homovanillic acid; norepinephrine; epinephrine; 3-methoxy-4-hydroxyphenylglycol; serotonin; and 5-hydroxyindoleacetic acid) in the frontal cortex and striatum were not different (P > 0.05) between infected and control mice at 8 wk of age. The exact mechanism for the observed effect on short-term memory in male mice is not known, and further investigation may help elucidate the molecular mechanisms associated with the proposed link between behavioral changes and T. gondii infection in animals. We were not able, however, to confirm the widely held belief that changes in neurotransmitters result from chronic T. gondii infection of the brain. 相似文献
992.
Bonsall MB Wallace-Hadrill SM Geddes JR Goodwin GM Holmes EA 《Proceedings. Biological sciences / The Royal Society》2012,279(1730):916-924
Bipolar disorder is a psychiatric condition characterized by episodes of elevated mood interspersed with episodes of depression. While treatment developments and understanding the disruptive nature of this illness have focused on these episodes, it is also evident that some patients may have chronic week-to-week mood instability. This is also a major morbidity. The longitudinal pattern of this mood instability is poorly understood as it has, until recently, been difficult to quantify. We propose that understanding this mood variability is critical for the development of cognitive neuroscience-based treatments. In this study, we develop a time-series approach to capture mood variability in two groups of patients with bipolar disorder who appear on the basis of clinical judgement to show relatively stable or unstable illness courses. Using weekly mood scores based on a self-rated scale (quick inventory of depressive symptomatology-self-rated; QIDS-SR) from 23 patients over a 220-week period, we show that the observed mood variability is nonlinear and that the stable and unstable patient groups are described by different nonlinear time-series processes. We emphasize the necessity in combining both appropriate measures of the underlying deterministic processes (the QIDS-SR score) and noise (uncharacterized temporal variation) in understanding dynamical patterns of mood variability associated with bipolar disorder. 相似文献
993.
Goodwin EB 《Current biology : CB》2001,11(15):R607-R609
Proteins containing Puf domains interact with cofactors to form complexes that bind RNAs and control diverse developmental events. Recent studies have shed light on how the Puf family of proteins regulates mRNA activity. 相似文献
994.
995.
Marco Tomasetti Linda Nocchi Jiri Neuzil Jacob Goodwin Maria Nguyen Lanfeng Dong Nicola Manzella Sara Staffolani Claudio Milanese Beatrice Garrone Renata Alleva Battista Borghi Lory Santarelli Roberto Guerrieri 《PloS one》2012,7(12)
Background
The redox-silent vitamin E analog α-tocopheryl succinate (α-TOS) was found to synergistically cooperate with vitamin K3 (VK3) plus ascorbic acid (AA) in the induction of cancer cell-selective apoptosis via a caspase-independent pathway. Here we investigated the molecular mechanism(s) underlying cell death induced in prostate cancer cells by α-TOS, VK3 and AA, and the potential use of targeted drug combination in the treatment of prostate cancer.Methodology/Principal Findings
The generation of ROS, cellular response to oxidative stress, and autophagy were investigated in PC3 prostate cancer cells by using drugs at sub-toxic doses. We evaluated whether PARP1-mediated apoptosis-inducing factor (AIF) release plays a role in apoptosis induced by the combination of the agents. Next, the effect of the combination of α-TOS, VK3 and AA on tumor growth was examined in nude mice. VK3 plus AA induced early ROS formation associated with induction of autophagy in response to oxidative stress, which was reduced by α-TOS, preventing the formation of autophagosomes. α-TOS induced mitochondrial destabilization leading to the release of AIF. Translocation of AIF from mitochondria to the nucleus, a result of the combinatorial treatment, was mediated by PARP1 activation. The inhibition of AIF as well as of PARP1 efficiently attenuated apoptosis triggered by the drug combination. Using a mouse model of prostate cancer, the combination of α-TOS, VK3 and AA was more efficient in tumor suppression than when the drugs were given separately, without deleterious side effects.Conclusions/Significance
α-TOS, a mitochondria-targeting apoptotic agent, switches at sub-apoptotic doses from autophagy-dependent survival of cancer cells to their demise by promoting the induction of apoptosis. Given the grim prognosis for cancer patients, this finding is of potential clinical relevance. 相似文献996.
Han C Kotsyurbenko O Chertkov O Held B Lapidus A Nolan M Lucas S Hammon N Deshpande S Cheng JF Tapia R Goodwin LA Pitluck S Liolios K Pagani I Ivanova N Mavromatis K Mikhailova N Pati A Chen A Palaniappan K Land M Hauser L Chang YJ Jeffries CD Brambilla EM Rohde M Spring S Sikorski J Göker M Woyke T Bristow J Eisen JA Markowitz V Hugenholtz P Kyrpides NC Klenk HP Detter JC 《Standards in genomic sciences》2012,6(1):94-103
Sulfuricurvum kujiense Kodama and Watanabe 2004 is the type species of the monotypic genus Sulfuricurvum, which belongs to the family Helicobacteraceae in the class Epsilonproteobacteria. The species is of interest because it is frequently found in crude oil and oil sands where it utilizes various reduced sulfur compounds such as elemental sulfur, sulfide and thiosulfate as electron donors. Members of the species do not utilize sugars, organic acids or hydrocarbons as carbon and energy sources. This genome sequence represents the type strain of the only species in the genus Sulfuricurvum. The genome, which consists of a circular chromosome of 2,574,824 bp length and four plasmids of 118,585 bp, 71,513 bp, 51,014 bp, and 3,421 bp length, respectively, harboring a total of 2,879 protein-coding and 61 RNA genes and is a part of the Genomic Encyclopedia of Bacteria and Archaea project. 相似文献
997.
M Göker E Saunders A Lapidus M Nolan S Lucas N Hammon S Deshpande JF Cheng C Han R Tapia LA Goodwin S Pitluck K Liolios K Mavromatis I Pagani N Ivanova N Mikhailova A Pati A Chen K Palaniappan M Land YJ Chang CD Jeffries EM Brambilla M Rohde S Spring JC Detter T Woyke J Bristow JA Eisen V Markowitz P Hugenholtz NC Kyrpides HP Klenk 《Standards in genomic sciences》2012,6(2):230-239
Thermovirga lienii Dahle and Birkeland 2006 is a member of the genus Thermovirga in the genomically moderately well characterized phylum 'Synergistetes'. Members of this relatively recently proposed phylum 'Synergistetes' are of interest because of their isolated phylogenetic position and their diverse habitats, e.g. from humans to oil wells. The genome of T. lienii Cas60314(T) is the fifth genome sequence (third completed) from this phylum to be published. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 1,999,646 bp long genome (including one plasmid) with its 1,914 protein-coding and 59 RNA genes is a part of the Genomic Encyclopedia of Bacteria and Archaea project. 相似文献
998.
Suman R. Rawat Minna K. M?nnist? Valentin Starovoytov Lynne Goodwin Matt Nolan Lauren Hauser Miriam Land Karen Walston Davenport Tanja Woyke Max M. H?ggblom 《Standards in genomic sciences》2012,7(1):59-69
Terriglobus saanensis SP1PR4T is a novel species of the genus Terriglobus. T. saanensis is of ecological interest because it is a representative of the phylum Acidobacteria, which are dominant members of bacterial soil microbiota in Arctic ecosystems. T. saanensis is a cold-adapted acidophile and a versatile heterotroph utilizing a suite of simple sugars and complex polysaccharides. The genome contained an abundance of genes assigned to metabolism and transport of carbohydrates including gene modules encoding for carbohydrate-active enzyme (CAZyme) family involved in breakdown, utilization and biosynthesis of diverse structural and storage polysaccharides. T. saanensis SP1PR4T represents the first member of genus Terriglobus with a completed genome sequence, consisting of a single replicon of 5,095,226 base pairs (bp), 54 RNA genes and 4,279 protein-coding genes. We infer that the physiology and metabolic potential of T. saanensis is adapted to allow for resilience to the nutrient-deficient conditions and fluctuating temperatures of Arctic tundra soils. 相似文献
999.
CJ Marx F Bringel L Chistoserdova L Moulin M Farhan Ul Haque DE Fleischman C Gruffaz P Jourand C Knief MC Lee EE Muller T Nadalig R Peyraud S Roselli L Russ LA Goodwin N Ivanova N Kyrpides A Lajus ML Land C Médigue N Mikhailova M Nolan T Woyke S Stolyar JA Vorholt S Vuilleumier 《Journal of bacteriology》2012,194(17):4746-4748
The complete and assembled genome sequences were determined for six strains of the alphaproteobacterial genus Methylobacterium, chosen for their key adaptations to different plant-associated niches and environmental constraints. 相似文献
1000.
Davis JR Goodwin LA Woyke T Teshima H Bruce D Detter C Tapia R Han S Han J Pitluck S Nolan M Mikhailova N Land ML Sello JK 《Journal of bacteriology》2012,194(9):2396-2397
We announce the availability of a high-quality draft of the genome sequence of Amycolatopsis sp. strain 39116, one of few bacterial species that are known to consume the lignin component of plant biomass. This genome sequence will further ongoing efforts to use microorganisms for the conversion of plant biomass into fuels and high-value chemicals. 相似文献