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Lithium genetics

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https://www.readbyqxmd.com/read/28633406/in-saccharomyces-cerevisiae-gene-targeting-fidelity-depends-on-a-transformation-method-and-proportion-of-the-overall-length-of-the-transforming-and-targeted-dna
#1
Anamarija Štafa, Marina Svetec Miklenic, Antonio Zandona, Bojan Žunar, Neža Cadež, Hrvoje Petkovic, Ivan Krešimir Svetec
Gene replacement is one of the most essential approaches in construction of the genetically modified yeast strains. However, the fidelity of gene targeting and the effort needed for construction of a particular strain can vary significantly. We investigated the influence of two important factors-the choice of the transformation method and the design of the transforming DNA fragment, which can vary in overall length (including flanking regions and selectable marker) compared to the length of the targeted region in the genome...
June 15, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28605600/activin-and-bmp4-signaling-converge-on-wnt-activation-during-odontogenesis
#2
H-J E Kwon, S Jia, Y Lan, H Liu, R Jiang
Previous studies show that both activin and Bmp4 act as crucial mesenchymal odontogenic signals during early tooth development. Remarkably, mice lacking activin-βA ( Inhba(-/-)) and mice with neural crest-specific inactivation of Bmp4 ( Bmp4(ncko/ncko)) both exhibit bud-stage developmental arrest of the mandibular molar tooth germs while their maxillary molar tooth germs completed morphogenesis. In this study, we found that, whereas expression of Inhba and Bmp4 in the developing tooth mesenchyme is independent of each other, Bmp4(ncko/ncko)Inhba(-/-) compound mutant mice exhibit early developmental arrest of all tooth germs...
June 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28574156/prediction-of-lithium-response-in-first-episode-mania-using-the-lithium-intelligent-agent-lithia-pilot-data-and-proof-of-concept
#3
David E Fleck, Nicholas Ernest, Caleb M Adler, Kelly Cohen, James C Eliassen, Matthew Norris, Richard A Komoroski, Wen-Jang Chu, Jeffrey A Welge, Thomas J Blom, Melissa P DelBello, Stephen M Strakowski
OBJECTIVES: Individualized treatment for bipolar disorder based on neuroimaging treatment targets remains elusive. To address this shortcoming, we developed a linguistic machine learning system based on a cascading genetic fuzzy tree (GFT) design called the LITHium Intelligent Agent (LITHIA). Using multiple objectively defined functional magnetic resonance imaging (fMRI) and proton magnetic resonance spectroscopy ((1) H-MRS) inputs, we tested whether LITHIA could accurately predict the lithium response in participants with first-episode bipolar mania...
June 2, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28567245/confined-space-synthesis-of-nanostructured-anatase-directed-by-genetically-engineered-living-organisms-for-lithium-ion-batteries
#4
Hang Ping, Hao Xie, Mingyu Xiang, Bao-Lian Su, Yucheng Wang, Jinyong Zhang, Fan Zhang, Zhengyi Fu
Biomineral formation processes in nature are temporally and spatially regulated under the functions of biomolecules in a confined space. It is potentially very productive to rationally design a mineralized system by taking into account confined space as well as biomolecules. The laboratory technique of "bacterial cell surface display" is an ideal platform to host catalytically active proteins in a three-dimensionally confined space. In the present study, aiming to regulate the synthesis of nanostructured TiO2 anatase, repeating segments of silaffin were displayed on Escherichia coli surfaces through genetic manipulation...
October 1, 2016: Chemical Science
https://www.readbyqxmd.com/read/28537298/vibrational-and-impedance-spectroscopic-analyses-of-semi-interpenetrating-polymer-networks-as-solid-polymer-electrolytes
#5
Nimai Bar, Pratyay Basak, Yoed Tsur
Semi-interpenetrating polymer networks (semi-IPNs) with significant ionic conductivity (10(-4) S cm(-1) at ambient temperature) were studied by vibrational and impedance spectroscopies coupled with advanced analysis procedures. Vibrational spectroscopy recognized the numbers of free ions, ion pairs, ion-polymers and hydrogen bonds within the solid polymer electrolyte matrices (SPE). Electrochemical impedance spectroscopy (EIS) was used to quantify the bulk resistance and bulk relaxation time. The analyses used discrepancy-complexity plots to assess the number of free parameters properly, and EIS was further analyzed using impedance spectroscopy genetic programming (ISGP)...
June 7, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28474173/-genetics-of-bipolar-disorder
#6
REVIEW
M Budde, A J Forstner, K Adorjan, S K Schaupp, M M Nöthen, T G Schulze
Bipolar disorder (BD) has a multifactorial etiology. Its development is influenced by genetic as well as environmental factors. Large genome-wide association studies (GWAS), in which genetic risk allelic variants for the disorder could be replicated for the first time, marked the breakthrough in the identification of the responsible risk genes. In addition to these common genetic variants with moderate effects identified by GWAS, rare variants with a higher penetrance are expected to play a role in disease development...
May 4, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28442992/genetic-deletion-of-akt3-induces-an-endophenotype-reminiscent-of-psychiatric-manifestations-in-mice
#7
Yan Bergeron, Geneviève Bureau, Marie-Élaine Laurier-Laurin, Eric Asselin, Guy Massicotte, Michel Cyr
The protein kinase B (PKB/Akt), found in three distinctive isoforms (PKBα/Akt1, PKBβ/Akt2, PKBγ/Akt3), is implicated in a variety of cellular processes such as cell development, growth and survival. Although Akt3 is the most expressed isoform in the brain, its role in cerebral functions is still unclear. In the present study, we investigated the behavioral, electrophysiological and biochemical consequences of Akt3 deletion in mice. Motor abilities, spatial navigation, recognition memory and LTP are intact in the Akt3 knockout (KO) mice...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28398339/animal-models-to-improve-our-understanding-and-treatment-of-suicidal-behavior
#8
REVIEW
T D Gould, P Georgiou, L A Brenner, L Brundin, A Can, P Courtet, Z R Donaldson, Y Dwivedi, S Guillaume, I I Gottesman, S Kanekar, C A Lowry, P F Renshaw, D Rujescu, E G Smith, G Turecki, P Zanos, C A Zarate, P A Zunszain, T T Postolache
Worldwide, suicide is a leading cause of death. Although a sizable proportion of deaths by suicide may be preventable, it is well documented that despite major governmental and international investments in research, education and clinical practice suicide rates have not diminished and are even increasing among several at-risk populations. Although nonhuman animals do not engage in suicidal behavior amenable to translational studies, we argue that animal model systems are necessary to investigate candidate endophenotypes of suicidal behavior and the neurobiology underlying these endophenotypes...
April 11, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28319150/high-throughput-transformation-of-saccharomyces-cerevisiae-using-liquid-handling-robots
#9
Guangbo Liu, Clayton Lanham, J Ross Buchan, Matthew E Kaplan
Saccharomyces cerevisiae (budding yeast) is a powerful eukaryotic model organism ideally suited to high-throughput genetic analyses, which time and again has yielded insights that further our understanding of cell biology processes conserved in humans. Lithium Acetate (LiAc) transformation of yeast with DNA for the purposes of exogenous protein expression (e.g., plasmids) or genome mutation (e.g., gene mutation, deletion, epitope tagging) is a useful and long established method. However, a reliable and optimized high throughput transformation protocol that runs almost no risk of human error has not been described in the literature...
2017: PloS One
https://www.readbyqxmd.com/read/28242870/neurons-derived-from-patients-with-bipolar-disorder-divide-into-intrinsically-different-sub-populations-of-neurons-predicting-the-patients-responsiveness-to-lithium
#10
S Stern, R Santos, M C Marchetto, A P D Mendes, G A Rouleau, S Biesmans, Q-W Wang, J Yao, P Charnay, A G Bang, M Alda, F H Gage
Bipolar disorder (BD) is a progressive psychiatric disorder with more than 3% prevalence worldwide. Affected individuals experience recurrent episodes of depression and mania, disrupting normal life and increasing the risk of suicide greatly. The complexity and genetic heterogeneity of psychiatric disorders have challenged the development of animal and cellular models. We recently reported that hippocampal dentate gyrus (DG) neurons differentiated from induced pluripotent stem cell (iPSC)-derived fibroblasts of BD patients are electrophysiologically hyperexcitable...
February 28, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28212405/a-simplified-fractional-order-impedance-model-and-parameter-identification-method-for-lithium-ion-batteries
#11
Qingxia Yang, Jun Xu, Binggang Cao, Xiuqing Li
Identification of internal parameters of lithium-ion batteries is a useful tool to evaluate battery performance, and requires an effective model and algorithm. Based on the least square genetic algorithm, a simplified fractional order impedance model for lithium-ion batteries and the corresponding parameter identification method were developed. The simplified model was derived from the analysis of the electrochemical impedance spectroscopy data and the transient response of lithium-ion batteries with different states of charge...
2017: PloS One
https://www.readbyqxmd.com/read/28122627/therapeutic-potential-of-autophagy-enhancing-agents-in-parkinson-s-disease
#12
REVIEW
Tim E Moors, Jeroen J M Hoozemans, Angela Ingrassia, Tommaso Beccari, Lucilla Parnetti, Marie-Christine Chartier-Harlin, Wilma D J van de Berg
Converging evidence from genetic, pathological and experimental studies have increasingly suggested an important role for autophagy impairment in Parkinson's Disease (PD). Genetic studies have identified mutations in genes encoding for components of the autophagy-lysosomal pathway (ALP), including glucosidase beta acid 1 (GBA1), that are associated with increased risk for developing PD. Observations in PD brain tissue suggest an aberrant regulation of autophagy associated with the aggregation of α-synuclein (α-syn)...
January 25, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28117839/the-genetic-overlap-between-mood-disorders-and-cardiometabolic-diseases-a-systematic-review-of-genome-wide-and-candidate-gene-studies
#13
REVIEW
A T Amare, K O Schubert, M Klingler-Hoffmann, S Cohen-Woods, B T Baune
Meta-analyses of genome-wide association studies (meta-GWASs) and candidate gene studies have identified genetic variants associated with cardiovascular diseases, metabolic diseases and mood disorders. Although previous efforts were successful for individual disease conditions (single disease), limited information exists on shared genetic risk between these disorders. This article presents a detailed review and analysis of cardiometabolic diseases risk (CMD-R) genes that are also associated with mood disorders...
January 24, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28110053/development-and-optimization-of-an-in-vitro-cultivation-protocol-allows-for-isolation-of-borrelia-miyamotoi-from-patients-with-hard-tick-borne-relapsing-fever
#14
Joris Koetsveld, Nadezhda M Kolyasnikova, Alex Wagemakers, Marina G Toporkova, Denis S Sarksyan, Anneke Oei, Alexander E Platonov, Joppe W Hovius
OBJECTIVES: Borrelia miyamotoi has been shown to infect humans in Eurasia and North America causing hard tick-borne relapsing fever (HTBRF). In vitro cultivation of B. miyamotoi was described recently; however, clinical isolation of relapsing fever Borrelia is cumbersome. Our aim was to develop a straightforward protocol enabling B. miyamotoi isolation directly from blood of patients. METHODS: MKP-F media, with or without anticoagulants, or blood from healthy human volunteers, was spiked with B...
January 18, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28109561/lithium-reverses-behavioral-and-axonal-transport-related-changes-associated-with-ank3-bipolar-disorder-gene-disruption
#15
Michael G Gottschalk, Melanie P Leussis, Tillmann Ruland, Klaudio Gjeluci, Tracey L Petryshen, Sabine Bahn
Ankyrin 3 (ANK3) has been implicated as a genetic risk factor for bipolar disorder (BD), however the resulting pathophysiological and treatment implications remain elusive. In a preclinical systems biological approach, we aimed to characterize the behavioral and proteomic effects of Ank3 haploinsufficiency and chronic mood-stabilizer treatment in mice. Psychiatric-related behavior was evaluated with the novelty-suppressed feeding (NSF) paradigm, elevated plus maze (EPM) and a passive avoidance task (PAT). Tandem mass spectrometry (MS(E)) was employed for hippocampal proteome profiling...
January 18, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28108944/the-seroprevalence-of-antithyroid-peroxidase-antibodies-in-bipolar-families-and-bipolar-twins-results-from-two-longitudinal-studies
#16
G Snijders, L de Witte, E Mesman, S Kemner, R Vonk, R Brouwer, W A Nolen, H A Drexhage, M H J Hillegers
BACKGROUND: Previous studies of our group among bipolar offspring and bipolar twins showed significant higher prevalence's and levels of antithyroid peroxidase antibodies (TPO-Abs) in offspring and co-twins (without a mood disorder) compared to controls, suggesting that TPO-Abs might be considered as vulnerability factor (trait marker) for BD development. OBJECTIVES: Here we elucidate, in the same cohorts, but now after 12- and 6-year follow-up, whether TPO-abs should be considered as a 'trait' marker for BD...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28095495/dna-methylation-analysis-of-brd1-promoter-regions-and-the-schizophrenia-rs138880-risk-allele
#17
Mads Dyrvig, Per Qvist, Jacek Lichota, Knud Larsen, Mette Nyegaard, Anders D Børglum, Jane H Christensen
The bromodomain containing 1 gene, BRD1 is essential for embryogenesis and CNS development. It encodes a protein that participates in histone modifying complexes and thereby regulates the expression of a large number of genes. Genetic variants in the BRD1 locus show association with schizophrenia and bipolar disorder and risk alleles in the promoter region correlate with reduced BRD1 expression. Insights into the transcriptional regulation of BRD1 and the pathogenic mechanisms associated with BRD1 risk variants, however, remain sparse...
2017: PloS One
https://www.readbyqxmd.com/read/28035180/bipolar-disorder-associated-microrna-mir-1908-5p-regulates-the-expression-of-genes-functioning-in-neuronal-glutamatergic-synapses
#18
Yoonhee Kim, Yinhua Zhang, Kaifang Pang, Hyojin Kang, Heejoo Park, Yeunkum Lee, Bokyoung Lee, Heon-Jeong Lee, Won-Ki Kim, Dongho Geum, Kihoon Han
Bipolar disorder (BD), characterized by recurrent mood swings between depression and mania, is a highly heritable and devastating mental illness with poorly defined pathophysiology. Recent genome-wide molecular genetic studies have identified several protein-coding genes and microRNAs (miRNAs) significantly associated with BD. Notably, some of the proteins expressed from BD-associated genes function in neuronal synapses, suggesting that abnormalities in synaptic function could be one of the key pathogenic mechanisms of BD...
December 2016: Experimental Neurobiology
https://www.readbyqxmd.com/read/27996307/clock-genes-associate-with-white-matter-integrity-in-depressed-bipolar-patients
#19
Irene Bollettini, Elisa Maria Teresa Melloni, Veronica Aggio, Sara Poletti, Cristina Lorenzi, Adele Pirovano, Benedetta Vai, Sara Dallaspezia, Cristina Colombo, Francesco Benedetti
Human genetic studies have implicated specific genes that constitute the molecular clock in the manifestation of bipolar disorder (BD). Among the clock genes involved in the control system of circadian rhythms, CLOCK 3111 T/C and Period3 (PER3) influence core psychopathological features of mood disorders, such as patterns of sleep, rest, and activity, diurnal preference, cognitive performances after sleep loss, age at the onset of the illness, and response to antidepressant treatment. Furthermore, several studies pointed out that bipolar symptomatology is associated with dysfunctions in white matter (WM) integrity, suggesting these structural alterations as a possible biomarker of the disorder...
2017: Chronobiology International
https://www.readbyqxmd.com/read/27923663/pharmacogenetics-of-lithium-effects-on-glomerular-function-in-bipolar-disorder-patients-under-chronic-lithium-treatment-a-pilot-study
#20
Evangelia Eirini Tsermpini, Yanfei Zhang, Paola Niola, Caterina Chillotti, Raffaella Ardau, Alberto Bocchetta, George P Patrinos, Maria Del Zompo, Giovanni Severino, Ming Ta Michael Lee, Alessio Squassina
Bipolar disorder (BD) is a psychiatric disease characterized by alternating episodes of mania and depression. Lithium (Li) represents the mainstay treatment for BD, although a significant proportion of patients shows insufficient or no response. Li is also associated with potentially severe side effects, including renal effects. Several studies reported that Li may induce reduction of glomerular filtration rate (GFR) in patients under long-term treatment. The biological systems and the genetic factors involved in susceptibility to Li-induced renal-side effects have been scarcely explored...
December 5, 2016: Neuroscience Letters
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