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Laboratory and Basic Science Research Commons™
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Articles 121 - 136 of 136
Full-Text Articles in Laboratory and Basic Science Research
A Mechanistic Hypothesis Of The Factors That Enhance Vulnerability To Nicotine Use In Females, Laura O'Dell
A Mechanistic Hypothesis Of The Factors That Enhance Vulnerability To Nicotine Use In Females, Laura O'Dell
Laura Elena O'Dell
Women are particularly more vulnerable to tobacco use than men. This review proposes a unifying hypothesis that females experience greater rewarding effects of nicotine and more intense stress produced by withdrawal than males. We also provide a neural framework whereby estrogen promotes greater rewarding effects of nicotine in females via enhanced dopamine release in the nucleus accumbens (NAcc). During withdrawal, we suggest that corticotropin-releasing factor (CRF) stress systems are sensitized and promote a greater suppression of dopamine release in the NAcc of females versus males. Taken together, females display enhanced nicotine reward via estrogen and amplified effects of withdrawal via …
Combined Eeg And Eye Tracking In Sports Skills Training And Performance Analysis, Keith Barfoot, Matthew Casey, Andrew J. Callaway
Combined Eeg And Eye Tracking In Sports Skills Training And Performance Analysis, Keith Barfoot, Matthew Casey, Andrew J. Callaway
Andrew J Callaway
No abstract provided.
Biochemical Conversion Of Acid-Pretreated Water Hyacinth (Eichhornia Crassipes) To Alcohol Using Pichia Stipitis Ncim3497, Sandip S. Magdum, Sandeep M. More, Aiyaj A. Nadaf
Biochemical Conversion Of Acid-Pretreated Water Hyacinth (Eichhornia Crassipes) To Alcohol Using Pichia Stipitis Ncim3497, Sandip S. Magdum, Sandeep M. More, Aiyaj A. Nadaf
Sandip S. Magdum
Cleaning and removal of water hyacinth from lakes and various historical places government spends lacks of rupees per year. High rate of propagation and easy availability, water-hyacinth could be used as a renewable carbon source for alcohol (fuel ethanol) production. Water-hyacinth’s (Eichhornia crassipes) hemicellulose acid hydrolysate has been utilized as a substrate for alcohol production using Pichia stipitis NCIM3497. Acid hydrolysis were carried out by using (1% v/v) sulfuric acid. Perhydrolysate was detoxified, boiled and overlimed up to pH 10.0 with NaOH to produce acid hydrolysate. Acid hydrolysate had higher fermentability than perhydrolysate. Freshly prepared acid hydrolysate was directly used …
Environmental Issues For The 21st Century And Their Impact On Human Health, Richard B. Philp
Environmental Issues For The 21st Century And Their Impact On Human Health, Richard B. Philp
Richard B. Philp
This book (see contents attached) is now available from the author on CD
Dietary Calcium Induced Cytological And Biochemical Changes In Thyroid, Amar K. Chandra, Haimanti Goswami, Pallav Sengupta
Dietary Calcium Induced Cytological And Biochemical Changes In Thyroid, Amar K. Chandra, Haimanti Goswami, Pallav Sengupta
Pallav Sengupta, PhD
Shoot Tip Transformation In Papaya, Rajesh Pati
Bias In The Journal Impact Factor, Jerome K. Vanclay
Bias In The Journal Impact Factor, Jerome K. Vanclay
Professor Jerome K Vanclay
The ISI journal impact factor (JIF) is based on a sample that may represent half the whole-of-life citations to some journals, but a small fraction (<10%) of the citations accruing to other journals. This disproportionate sampling means that the JIF provides a misleading indication of the true impact of journals, biased in favour of journals that have a rapid rather than a prolonged impact. Many journals exhibit a consistent pattern of citation accrual from year to year, so it may be possible to adjust the JIF to provide a more reliable indication of a journal’s impact.
Ranking Forestry Journals Using The H-Index, Jerome K. Vanclay
Ranking Forestry Journals Using The H-Index, Jerome K. Vanclay
Professor Jerome K Vanclay
An expert ranking of forestry journals was compared with Journal Impact Factors and h-indices computed from the ISI Web of Science and internet-based data. Citations reported by Google Scholar offer an efficient way to rank all journals objectively, in a manner consistent with other indicators. This h-index exhibited a high correlation with the Journal Impact Factor (r = 0.92), but is not confined to journals selected by any particular commercial provider. A ranking of 180 forestry journals is presented, on the basis of this index.
Myotonia Congenita, Christoph Lossin, Alfred George
Myotonia Congenita, Christoph Lossin, Alfred George
Christoph Lossin, Ph.D.
Myotonia is a symptom of many different acquired and genetic muscular conditions that impair the relaxation phase of muscular contraction. Myotonia congenital is a specific inherited disorder of muscle membrane hyperexcitability caused by reduced sarcolemmal chloride conductance due to mutations invCLCN1, the gene coding for the main skeletal muscle chloride channel ClC-1.The disorder may be transmitted as either an autosomal-dominant or recessive trait with close to 130 currently known mutations. Although this is a rare disorder, elucidation of the pathophysiology underlying myotonia congenital established the importance of sarcolemmal chloride conductance in the control of muscle excitability and demonstrated the first …
A Catalog Of Scn1a Variants, Christoph Lossin
A Catalog Of Scn1a Variants, Christoph Lossin
Christoph Lossin, Ph.D.
Over the past 10 years mutations in voltage-gated sodium channels (Navs) have become closely associated with inheritable forms of epilepsy. One isoform in particular, Nav1.1 (gene symbol SCN1A), appears to be a superculprit, registering with more than 330 mutations to date. The associated phenotypes range from benign febrile seizures to extremely serious conditions, such as Dravet’s syndrome (SMEI). Despite the wealth of information, mutational analyses are cumbersome, owing to inconsistencies among the Nav1.1 sequences to which different research groups refer. Splicing variability is the core problem: Nav1.1 co-exists in three isoforms, two of them lack 11 or 28 amino acids …
Protein Purification For Structural Genomics, Rachele M. Hendricks-Sturrup
Protein Purification For Structural Genomics, Rachele M. Hendricks-Sturrup
Rachele M Hendricks-Sturrup
In Vitro Clonal Propagation Of Bael (Aegle Marmelos Corr.) Cv. Cishb1 Through Enhanced Axillary Branching, Rajesh Pati
In Vitro Clonal Propagation Of Bael (Aegle Marmelos Corr.) Cv. Cishb1 Through Enhanced Axillary Branching, Rajesh Pati
Rajesh Pati
Rapid clonal micropropagation protocol of Aegle marmelos (L.) Corr. cv. CISH-B1 was achieved by nodal stem segment of mature bearing tree. Three centimeter long shoots having one axillary bud excised from 10-15th nodal region of shoots during September gave quick in vitro bud burst (5.33 days) when cultured on MS medium supplemented with BAP, 8.84 μM + IAA 5.7 μM. The maximum number of proliferated shoots (9.0/explant) were obtained on same medium supplemented with BAP 8.84 μM + IAA 5.7 μM. The micro shoots were rooted (100 %) on ½ strength MS medium supplemented with IBA 49.0 + IAA 5.7 …
Single-Channel Properties Of Human Nav1.1 And Mechanism Of Channel Dysfunction In Scn1a-Associated Epilepsy, C. Vanoye, Christoph Lossin, T. H. Rhodes, Alfred L. George
Single-Channel Properties Of Human Nav1.1 And Mechanism Of Channel Dysfunction In Scn1a-Associated Epilepsy, C. Vanoye, Christoph Lossin, T. H. Rhodes, Alfred L. George
Christoph Lossin, Ph.D.
Mutations in genes encoding neuronal voltage-gated sodium channel subunits have been linked to inherited forms of epilepsy. The majority of mutations (>100) associated with generalized epilepsy with febrile seizures plus (GEFS+) and severe myoclonic epilepsy of infancy (SMEI) occur in SCN1A encoding the NaV1.1 neuronal sodium channel alpha-subunit. Previous studies demonstrated functional heterogeneity among mutant SCN1A channels, revealing a complex relationship between clinical and biophysical phenotypes. To further understand the mechanisms responsible for mutant SCN1A behavior, we performed a comprehensive analysis of the single-channel properties of heterologously expressed recombinant WT-SCN1A channels. Based on these data, we then determined the …
Epilepsy-Associated Dysfunction In The Voltage-Gated Neuronal Sodium Channel Scn1a, Christoph Lossin, T. Rhodes, R. Desai, C. Vanoye, S. Caniciu, O. Devinsky, A. George
Epilepsy-Associated Dysfunction In The Voltage-Gated Neuronal Sodium Channel Scn1a, Christoph Lossin, T. Rhodes, R. Desai, C. Vanoye, S. Caniciu, O. Devinsky, A. George
Christoph Lossin, Ph.D.
Mutations in SCN1A, the gene encoding the brain voltage-gated sodium channel subunit (Nav1.1) are associated with at least two forms of epilepsy, generalized epilepsy with febrile seizures plus (GEFS+) and severe myoclonic epilepsy of infancy (SMEI). We examined the functional properties of four GEFS+ alleles and one SMEI allele using whole-cell patch-clamp analysis of heterologously expressed recombinant human SCN1A. One previously reported GEFS+ mutation (I1656M) and an additional novel allele (R1657C), both affecting residues in a voltage-sensing S4 segment, exhibited a similar depolarizing shift in the voltage dependence of activation. Additionally, R1657C showed a 50% reduction in current density and …
Molecular Basis Of An Inherited Epilepsy, Christoph Lossin, T. H. Rhodes, C. Vanoye, D. Wang, Alfred L. George
Molecular Basis Of An Inherited Epilepsy, Christoph Lossin, T. H. Rhodes, C. Vanoye, D. Wang, Alfred L. George
Christoph Lossin, Ph.D.
Mutations in SCN1A, the gene encoding the brain voltage-gated sodium channel alpha1 subunit (NaV1.1), are associated with at least two forms of epilepsy, generalized epilepsy with febrile seizures plus (GEFS+) and severe myoclonic epilepsy of infancy (SMEI). We examined the functional properties of four GEFS+ alleles and one SMEI allele using whole-cell patch-clamp analysis of heterologously expressed recombinant human SCN1A. One previously reported GEFS+ mutation (I1656M) and an additional novel allele (R1657C), both affecting residues in a voltage-sensing S4 segment, exhibited a similar depolarizing shift in the voltage dependence of activation. Additionally, R1657C showed a 50% reduction in current density …
Preparative Separation Of Pyrrolizidine Alkaloids By High-Speed Counter-Current Chromatography, Roland A. Cooper, Rion J. Bowers, Carla J. Beckham, Ryan J. Huxtable