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Gorgonians Are Foundation Species On Sponge-Dominated Mesophotic Coral Reefs In The Caribbean, Marc Slattery, Michael P. Lesser Apr 2021

Gorgonians Are Foundation Species On Sponge-Dominated Mesophotic Coral Reefs In The Caribbean, Marc Slattery, Michael P. Lesser

Faculty and Student Publications

Foundation species (FS) regulate ecological processes within communities often facilitating biodiversity and habitat complexity. Typically FS are dominant structure-forming taxa; but less dominant taxa having disproportionate ecological impacts to the community can also be FS. Mesophotic coral ecosystems (MCEs) are deep coral reef (∼30–150 m) communities, often dominated by emergent sponges in the Caribbean Basin. Despite the potential competitive advantage of sponges on MCEs, gorgonians are also common constituents of these reefs. Data from the Bahamas demonstrate increased biodiversity and densities of sponges on mesophotic reefs with gorgonians relative to reefs without these species. Drawing upon fifteen years of field …


Um Goes National With Teacher Education Support Program, Shea Stewart Apr 2021

Um Goes National With Teacher Education Support Program, Shea Stewart

University of Mississippi News

World Class Teaching Program prepares educators for National Board certification


High-Performance Thin-Layer Chromatography For Rutin, Chlorogenic Acid, Caffeic Acid, Ursolic Acid, And Stigmasterol Analysis In Periploca Aphylla Extracts, Raha Orfali, Shagufta Perveen, Hanan Y. Aati, Perwez Alam Apr 2021

High-Performance Thin-Layer Chromatography For Rutin, Chlorogenic Acid, Caffeic Acid, Ursolic Acid, And Stigmasterol Analysis In Periploca Aphylla Extracts, Raha Orfali, Shagufta Perveen, Hanan Y. Aati, Perwez Alam

Faculty and Student Publications

Periploca aphylla (PA), an interesting Saudi medicinal plant, is used in folk medicine to treat urticaria, cerebral fever, tumors, and swelling. To prove its use in folk medicine, two different extracts from the aerial parts of the plant: chloroform P-1, and n-butanol P-2 were subjected to biological assays to screen peroxisome proliferator-activated receptors (PPARα and PPARγ) agnostic, antiinflammatory, antioxidant, cytotoxic, and estrogenic activities. In addition, five bioactive secondary metabolites were isolated from the aerial parts of the plant: rutin, chlorogenic acid, caffeic acid, ursolic acid, and stigmasterol. P-1 and P-2 decreased cellular oxidative stress by 47.0% and 62.0%, respectively, compared …


Draft Genome Sequence Of Aneurinibacillus Sp. Strain Ba2021, Isolated As A Contaminant Of A Laboratory-Cultivated Predatory Myxobacterium, Barbara I. Adaikpoh, Scot E. Dowd, D. Cole Stevens Apr 2021

Draft Genome Sequence Of Aneurinibacillus Sp. Strain Ba2021, Isolated As A Contaminant Of A Laboratory-Cultivated Predatory Myxobacterium, Barbara I. Adaikpoh, Scot E. Dowd, D. Cole Stevens

Faculty and Student Publications

During laboratory cultivation of the myxobacterium Archangium violaceum strain Cb vi76, a reoccurring contaminant was isolated and sequenced. Comparative taxonomic analysis of the draft genome suggested the contaminant to be a novel species, currently designated Aneurinibacillus sp. strain BA2021, from the genus Aneurinibacillus, members of which are considered promising biocontrol agents.


Bisc 579: Advanced Topics In Biology: Meta-Analysis In Biology, Jason Hoeksema Apr 2021

Bisc 579: Advanced Topics In Biology: Meta-Analysis In Biology, Jason Hoeksema

GMAS Course Syllabi

No abstract provided.


Greg Tschumper Wins 2021 Sec Faculty Achievement Award, Staff Report Apr 2021

Greg Tschumper Wins 2021 Sec Faculty Achievement Award, Staff Report

University of Mississippi News

Professor internationally recognized for research in physical and computational quantum chemistry


Effects Of Caffeine Consumption On Cognitive Performance In Anatomy And Physiology Students, Sydney Wingfield Apr 2021

Effects Of Caffeine Consumption On Cognitive Performance In Anatomy And Physiology Students, Sydney Wingfield

Honors Theses

Caffeine has often been associated with college students and their study habits; however, little research has been done to explore if it is actually beneficial to the students’ cognitive performance and academic success. While current studies have explored various aspects of caffeine’s influence on specific areas of cognition relevant to their own studies, there is a lack of research on how it influences academic settings. Within the present study, it is believed that caffeine usage will not cause a significant improvement in individual academic performance despite of the known physiological and cognitive effects on the students. The study consisted of …


Climate Change Leads To A Reduction In Symbiotic Derived Cnidarian Biodiversity On Coral Reefs, Denis Goulet, Tamar L. Goulet Mar 2021

Climate Change Leads To A Reduction In Symbiotic Derived Cnidarian Biodiversity On Coral Reefs, Denis Goulet, Tamar L. Goulet

Faculty and Student Publications

Symbiotic relationships enable partners to thrive and survive in habitats where they would either not be as successful, or potentially not exist, without the symbiosis. The coral reef ecosystem, and its immense biodiversity, relies on the symbioses between cnidarians (e.g., scleractinian corals, octocorals, sea anemones, jellyfish) and multiple organisms including dinoflagellate algae (family Symbiodiniaceae), bivalves, crabs, shrimps, and fishes. In this review, we discuss the ramifications of whether coral reef cnidarian symbioses are obligatory, whereby at least one of the partners must be in the symbiosis in order to survive or are facultative. Furthermore, we cover the consequences of cnidarian …


March 25, 2021, The Daily Mississippian Mar 2021

March 25, 2021, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


March 18, 2021, The Daily Mississippian Mar 2021

March 18, 2021, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


Indolizine Donor-Based Dyes For Applications In Fluorescence Biological Imaging, William Meador Mar 2021

Indolizine Donor-Based Dyes For Applications In Fluorescence Biological Imaging, William Meador

Honors Theses

NIR emissive fluorophores are intensely researched due to their potential to replace modern imaging procedures. Many molecular strategies have been employed in the literature to optimize fluorophores for deeper NIR absorption and emission, biocompatibility, and higher fluorescence quantum yields. Amongst the fluorophores studied to date, proaromatic indolizine donors are attractive alternatives to traditional alkyl amine and indoline based donors due to their 1) lower energy absorption and emission facilitated by proaromaticity, 2) large Stokes shifts due to increased dihedral angles about the π-system, 3) ease of functionalization and capacity for bioconjugation at the phenyl ring, and 4) potential for further …


Rebelthon Exceeds Goal With $185k Raised, Edwin B. Smith Mar 2021

Rebelthon Exceeds Goal With $185k Raised, Edwin B. Smith

University of Mississippi News

Money goes toward new facility for Children's Hospital of Mississippi


March 9, 2021, University Of Mississippi. Faculty Senate Mar 2021

March 9, 2021, University Of Mississippi. Faculty Senate

Meeting Minutes

Minutes for the March 2021 meeting of the University of Mississippi Faculty Senate.


March 4, 2021, The Daily Mississippian Mar 2021

March 4, 2021, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


Design Of Topical Ocular Ciprofloxacin Nanoemulsion For The Management Of Bacterial Keratitis, Ahmed Adel Ali Youssef, Chuntian Cai, Narendar Dudhipala, Soumyajit Majumdar Mar 2021

Design Of Topical Ocular Ciprofloxacin Nanoemulsion For The Management Of Bacterial Keratitis, Ahmed Adel Ali Youssef, Chuntian Cai, Narendar Dudhipala, Soumyajit Majumdar

Faculty and Student Publications

Bacterial keratitis (BK) is a critical ocular infection that can lead to serious visual disability. Ciprofloxacin (CIP), moxifloxacin (MOX), and levofloxacin (LFX) have been accepted as monothera-pies by the US Food and Drug Administration for BK treatment. CIP is available commercially at 0.3% w/v concentration as an ophthalmic solution and as an ointment for ocular delivery. Because of solubility issues at physiological pH, CIP precipitation can occur at the corneal surface post instillation of the solution dosage form. Consequently, the ocular bioavailability of CIP is reduced. The ointment dosage form is associated with side effects such as blurred vision, itching, …


Comprehensive Chromatographic Profiling Of Cannabis From 23 Usa States Marketed For Medical Purposes, Ramia Z. Al Bakain, Yahya S. Al-Degs, James V. Cizdziel, Mahmoud A. Elsohly Mar 2021

Comprehensive Chromatographic Profiling Of Cannabis From 23 Usa States Marketed For Medical Purposes, Ramia Z. Al Bakain, Yahya S. Al-Degs, James V. Cizdziel, Mahmoud A. Elsohly

Faculty and Student Publications

In this research, cannabis varieties represent 23 USA States were assayed by GC-FID to generate their complex chemical profiles informative for plants clustering. Results showed that 45 cannabinoids and terpenoids were quantified in all plant samples, where 8 cannabinoids and 18 terpenoids were identified. Among organics, Δ9-THC, CBN (cannabinoids) and Fenchol (terpenoid) not only showed the highest levels overall contents, but also were the most important compounds for cannabis clustering. Among States, Washington, Oregon, California and Hawaii have the highest cannabis content. GC-FID data were subjected to PCA and HCA to find (1) the variations among cannabis chemical profiles as …


Pharmacy Matters - March 2021, University Of Mississippi. School Of Pharmacy Mar 2021

Pharmacy Matters - March 2021, University Of Mississippi. School Of Pharmacy

Pharmacy Matters Newsletters

Featured stories: "Allen Named President of University of Health Sciences and Pharmacy in St. Louis," "UM Professor Helps Underserved Communities through Pharmacy," "Pharmacy Professor Receives UM Faculty Achievement Award," "UM Partners with MSU to Advance Pharmacy Education"


Gilman Scholarships Offer Chance To Explore The Globe, Staff Report Mar 2021

Gilman Scholarships Offer Chance To Explore The Globe, Staff Report

University of Mississippi News

Deadline to apply for next round of study abroad scholarships is March 9


Biologically Guided Isolation And Admet Profile Of New Factor Xa Inhibitors Fromglycyrrhiza Glabraroots Usingin Vitroandin Silicoapproaches, Reham S. Ibrahim, Rahma S. R. Mahrous, Rasha M. Abu El-Khair, Samir A. Ross Feb 2021

Biologically Guided Isolation And Admet Profile Of New Factor Xa Inhibitors Fromglycyrrhiza Glabraroots Usingin Vitroandin Silicoapproaches, Reham S. Ibrahim, Rahma S. R. Mahrous, Rasha M. Abu El-Khair, Samir A. Ross

Faculty and Student Publications

Selective factor Xa inhibitors effectively block coagulation cascade with a broader therapeutic window than multitargeted anticoagulants. They have evolved as a crucial part of prevention and treatment of thromboembolic diseases and in therapeutic protocols involved in many clinical trials in coronavirus disease 2019 (COVID-19) patients. Biologically-guided isolation of specific FXa inhibitors from licorice (Glycyrrhiza glabra) root extract furnished ten flavonoids. By detailed analysis of their1H,13C NMR and MS data, the structures of these flavonoids were established as 7,4′-dihydroxyflavone (1), formononetin (2), 3-R-glabridin (3), isoliquiritigenin (4), liquiritin (5), naringenin 5-O-glucoside (6), 3,3′,4,4′-tetrahydroxy-2-methoxychalcone (7), liquiritinapioside (8) and the two isomers isoliquiritigenin-4′-O-β-d-apiosylglucoside (9) …


February 25, 2021, The Daily Mississippian Feb 2021

February 25, 2021, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


February 9, 2021, University Of Mississippi. Faculty Senate Feb 2021

February 9, 2021, University Of Mississippi. Faculty Senate

Meeting Minutes

Minutes for the February 2021 meeting of the University of Mississippi Faculty Senate.


Biologist Publishes Breakthrough Study, Abigail Meisel Feb 2021

Biologist Publishes Breakthrough Study, Abigail Meisel

University of Mississippi News

Lainy Day's research advances the study of avian evolution


February 4, 2021, The Daily Mississippian Feb 2021

February 4, 2021, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


Proposed Mechanism For The Antitrypanosomal Activity Of Quercetin And Myricetin Isolated From Hypericum Afrum Lam: Phytochemistry, In Vitro Testing And Modeling Studies, Farida Larit, Khaled M. Elokely, Manal A. Nael, Samira Benyahia Feb 2021

Proposed Mechanism For The Antitrypanosomal Activity Of Quercetin And Myricetin Isolated From Hypericum Afrum Lam: Phytochemistry, In Vitro Testing And Modeling Studies, Farida Larit, Khaled M. Elokely, Manal A. Nael, Samira Benyahia

Faculty and Student Publications

The in vitro activity of L. donovani (promastigotes, axenic amastigotes and intracellular amastigotes in THP1 cells) and T. brucei, from the fractions obtained from the hydroalcoholic extract of the aerial part of Hypericum afrum and the isolated compounds, has been evaluated. The chloroform, ethyl acetate and n-butanol extracts showed significant antitrypanosomal activity towards T. brucei, with IC50 values of 12.35, 13.53 and 12.93 µg/mL and with IC90 values of 14.94, 19.31 and 18.67 µg/mL, respectively. The phytochemical investigation of the fractions led to the isolation and identification of quercetin (1), myricitrin (2), biapigenin (3), myricetin (4), hyperoside (5), myricetin-3-O-β-D-galactopyranoside (6) …


Extra-Long Battery Life, Abigail Meisel Feb 2021

Extra-Long Battery Life, Abigail Meisel

University of Mississippi News

UM electrochemist and dean looks back on four decades at university


Crosstalk Of Cancer Signaling Pathways By Cyclic Hexapeptides And Anthraquinones From Rubia Cordifolia, Premalatha Balachandran, Mohamed Ali Ibrahim, Jin Zhang, Mei Wang Feb 2021

Crosstalk Of Cancer Signaling Pathways By Cyclic Hexapeptides And Anthraquinones From Rubia Cordifolia, Premalatha Balachandran, Mohamed Ali Ibrahim, Jin Zhang, Mei Wang

Faculty and Student Publications

The anticancer activities of Rubia cordifolia and its constituents have been reported earlier, but their influence on the crosstalk of complex cancer-related signaling metabolic pathways (i.e., transcription factors; TF) has not yet been fully investigated. In this study, R. cordifolia root extract was subjected to the cancer signaling assay based bioactivity-guided fractionation, which yielded the following compounds viz., three anthraquinones, namely alizarin (1), purpurin (2), and emodin (3); two lignans, namely eudesmin (4) and compound 5; and two cyclic hexapeptides, namely deoxybouvardin RA-V (6), and a mixture of 6+9 (RA-XXI). The structures of the isolated compounds were determined by NMR …


Effective Inhibition Of Sars-Cov-2 Entry By Heparin And Enoxaparin Derivatives, Ritesh Tandon, Joshua S. Sharp, Fuming Zhang, Vitor H. Pomin, Nicole M. Ashpole, Dipanwita Mitra, Martin G. Mccandless, Weihua Jin, Hao Liu, Poonam Sharma, Robert J. Linhardt Feb 2021

Effective Inhibition Of Sars-Cov-2 Entry By Heparin And Enoxaparin Derivatives, Ritesh Tandon, Joshua S. Sharp, Fuming Zhang, Vitor H. Pomin, Nicole M. Ashpole, Dipanwita Mitra, Martin G. Mccandless, Weihua Jin, Hao Liu, Poonam Sharma, Robert J. Linhardt

Faculty and Student Publications

Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) has caused a pandemic of historic proportions and continues to spread globally, with enormous consequences to human health. Currently there is no vaccine, effective therapeutic, or prophylactic. As with other betacoronaviruses, attachment and entry of SARS-CoV-2 are mediated by the spike glycoprotein (SGP). In addition to its well-documented interaction with its receptor, human angiotensin-converting enzyme 2 (hACE2), SGP has been found to bind to glycosaminoglycans like heparan sulfate, which is found on the surface of virtually all mammalian cells. Here, we pseudotyped SARS-CoV-2 SGP on a third-generation lentiviral (pLV) vector and tested the …


Gut Microbiomes Of Freshwater Mussels (Unionidae) Are Taxonomically And Phylogenetically Variable Across Years But Remain Functionally Stable, Mark Mccauley, Marlène Chiarello, Carla L. Atkinson, Colin R. Jackson Feb 2021

Gut Microbiomes Of Freshwater Mussels (Unionidae) Are Taxonomically And Phylogenetically Variable Across Years But Remain Functionally Stable, Mark Mccauley, Marlène Chiarello, Carla L. Atkinson, Colin R. Jackson

Faculty and Student Publications

Freshwater mussels perform essential ecosystem functions, yet we have no information on how their microbiomes fluctuate over time. In this study, we examined temporal variation in the microbiome of six mussel species (Lampsilis ornata, Obovaria unicolor, Elliptio arca, Fusconaia cerina, Cyclonaias asperata, and Tritogonia verrucosa) sampled from the same river in 2016 and 2019. We examined the taxonomic, phylogenetic, and inferred functional (from 16S rRNA sequences) facets of their microbiome diversity. Significant differences between the two years were identified in five of the six species sampled. However, not all species that exhibited a temporally variable microbiome were functionally distinct across …


Student Veterans Celebrate New One-Stop Shop For Resources, J. B. Clark Jan 2021

Student Veterans Celebrate New One-Stop Shop For Resources, J. B. Clark

University of Mississippi News

Office of Veteran and Military Services cuts ribbon on renovated space in George Street House


January 19, 2021, University Of Mississippi. Faculty Senate Jan 2021

January 19, 2021, University Of Mississippi. Faculty Senate

Meeting Minutes

Minutes for the January 2021 meeting of the University of Mississippi Faculty Senate.