Distribution Of Chromosomal Abnormalities Commonly Observed In Adult Acute Myeloid Leukemia In Pakistan As Predictors Of Prognosis, Muhammad Shariq Shaikh, Zeeshan Ansar Ahmed, Mohammad Usman Shaikh, Salman Adil, Mohammad Khurshid, Tariq Moatter, Anila Rashid, Farheen Karim, Ahmed Raheem Buksh, N. Ali
Department of Pathology and Laboratory Medicine
The heterogenous response to treatment in acute myeloid leukemia (AML) can be attributed largely to the difference in cytogenetic features identified in between cases. Cytogenetic analysis in acute leukemia is now routinely used to assist patient management, particularly in terms of diagnosis, disease monitoring, prognosis and risk stratification. Knowing about cytogenetic profile at the time of diagnosis is important in order to take critical decisions in management of these patients. The study was conducted to determine the distribution of cytogenetic abnormalities in Pakistani adult patients with AML in order to have insights regarding behavior of the.
A retrospective ...
Elevated Levels Of Matrix Metalloproteinases Reflect Severity And Extent Of Disease In Tuberculosis-Diabetes Co-Morbidity And Are Predominantly Reversed Following Standard Anti-Tuberculosis Or Metformin Treatment, 2018 National Institutes of Health-NIH-NIRT-ICER
Elevated Levels Of Matrix Metalloproteinases Reflect Severity And Extent Of Disease In Tuberculosis-Diabetes Co-Morbidity And Are Predominantly Reversed Following Standard Anti-Tuberculosis Or Metformin Treatment, Nathella P. Kumar, Kadar Moideen, Vijay Viswanathan, Basavaradhya S. Shruthi, Shanmugam Sivakumar, Pradeep A. Menon, Hardy Kornfeld, Subash Babu
Open Access Articles
BACKGROUND: Matrix metalloproteinases (MMPs) are considered to be key mediators of tuberculosis (TB) pathology but their role in tuberculosis - diabetes comorbidity (TB-DM) is not well understood.
METHODS: To study the association of MMP levels with severity and extent of disease as well as bacterial burden in TB-DM, we examined the systemic levels of MMP-1, - 2, - 3, - 7, - 8, - 9, - 10, - 12 and - 13 in individuals with TB-DM and compared them to those with TB alone (TB) or healthy controls (HC). RESULTS: Circulating levels of MMP-1, - 2, - 3, - 7, - 10 and - 12 were significantly higher in TB-DM compared to both TB ...
Her2 Basolateral Versus Circumferential Ihc Expression Is Dependent On Polarity And Differentiation Of Epithelial Cells In Gastric/Ge Adenocarcinoma, Shahid Pervez, Sidra Arshad, Brooj Abro
Department of Pathology and Laboratory Medicine
Aim: Antigenic expression in epithelial cells can be heterogeneous which may pose a problem in immunohistochemical (IHC) analysis of tumor markers, in particular, predictive markers like HER2. Studies have shown that epithelial cells have distinct apical and basolateral domains which are separated by tight junctions. The cell membrane in these two domains has a different composition of macromolecules and hence can have variable antigen expression on immunohistochemistry. In our study, we aimed to investigate this phenomenon of basolateral versus circumferential IHC staining of HER2 in gastric/GE adenocarcinoma.
Methods: We selected 45 cases of gastric/GE adenocarcinoma and evaluated equal ...
Innate Detection Of Hiv-1 In Myeloid Dendritic Cells, 2018 University of Massachusetts Medical School
Innate Detection Of Hiv-1 In Myeloid Dendritic Cells, Sean Matthew Mccauley
GSBS Dissertations and Theses
Protective antiviral immune responses require priming of naïve T cells by dendritic cells (DCs) that have matured sufficiently to produce co-stimulatory cell surface molecules and cytokines. Although only low levels of productive HIV-1 infection are detected in ex vivo DCs following HIV-1 challenge, those few cells exhibit innate activation. Experimentally bypassing blocks to entry and replication leads to more efficient transduction of DCs and maturation as indicated by production of interferons and interferon stimulated genes. Furthermore, similar innate activation occurs upon transduction of macrophages or CD4+ T cells. However, the mechanism by which HIV-1 is detected to activate innate immune ...
Whole Cell Cross-Linking To Discover Host-Microbe Protein Cognate Receptor/Ligand Pairs, 2018 University of California, Davis
Whole Cell Cross-Linking To Discover Host-Microbe Protein Cognate Receptor/Ligand Pairs, Bart C. Weimer, Poyin Chen, Prerak T. Desai, Dong Chen, Jigna Shah
Biological Engineering Faculty Publications
Bacterial surface ligands mediate interactions with the host cell during association that determines the specific outcome for the host–microbe association. The association begins with receptors on the host cell binding ligands on the microbial cell to form a partnership that initiates responses in both cells. Methods to determine the specific cognate partnerships are lacking. Determining these molecular interactions between the host and microbial surfaces are difficult, yet crucial in defining biologically important events that are triggered during association of the microbiome, and critical in defining the initiating signal from the host membrane that results in pathology or commensal association ...
Genomic Analysis Of 48 Paenibacillus Larvae Bacteriophages, 2018 University of Nevada, Las Vegas
Genomic Analysis Of 48 Paenibacillus Larvae Bacteriophages, Casey Stamereilers, Christopher P. Fajardo, Jamison K. Walker, Katterinne N. Mendez, Eduardo Castro-Nallar, Julianne H. Grose, Sandra Hope, Philippos K. Tsourkas
Life Sciences Faculty Publications
The antibiotic-resistant bacterium Paenibacillus larvae is the causative agent of American foulbrood (AFB), currently the most destructive bacterial disease in honeybees. Phages that infect P. larvae were isolated as early as the 1950s, but it is only in recent years that P. larvae phage genomes have been sequenced and annotated. In this study we analyze the genomes of all 48 currently sequenced P. larvae phage genomes and classify them into four clusters and a singleton. The majority of P. larvaephage genomes are in the 38–45 kbp range and use the cohesive ends (cos) DNA-packaging strategy, while a minority have ...
Comparative Genetic And Genomic Analysis Of The Novel Fusellovirus Sulfolobus Spindle-Shaped Virus 10, 2018 Portland State University
Comparative Genetic And Genomic Analysis Of The Novel Fusellovirus Sulfolobus Spindle-Shaped Virus 10, David Andrew Goodman
Dissertations and Theses
Viruses that infect thermophilic Archaea are unique in both their structure and genetic makeup. The lemon-shaped fuselloviruses - which infect members of the order Sulfolobales, growing optimally at 80º C and pH 3 - are some of the most ubiquitous and best studied viruses of the thermoacidophilic Archaea. They provide a malleable and useful genetic tool for probing into the functions of their host, as well as the host responses to infection. Nonetheless, much about these viruses remains to be learned to further understand their morphological, genetic, and life cycle characteristics.
In order to investigate these aspects of these Fuselloviridae, as well ...
Transporters Mrp1 And Mrp2 Regulate Opposing Inflammatory Signals To Control Transepithelial Neutrophil Migration During Streptococcus Pneumoniae Lung Infection, 2018 University of Massachusetts Medical School
Transporters Mrp1 And Mrp2 Regulate Opposing Inflammatory Signals To Control Transepithelial Neutrophil Migration During Streptococcus Pneumoniae Lung Infection, Andrew Zukauskas, Randall J. Mrsny, Paula Cortes Barrantes, Jerrold R. Turner, John M. Leong, Beth A. Mccormick
Open Access Articles
Streptococcus pneumoniae remains a source of morbidity and mortality in both developed and underdeveloped nations of the world. Disease can manifest as pneumonia, bacteremia, and meningitis, depending on the localization of infection. Interestingly, there is a correlation in experimental murine infections between the development of bacteremia and influx of neutrophils into the pulmonary lumen. Reduction of this neutrophil influx has been shown to improve survivability during infection. In this study, we use in vitro biotinylation and neutrophil transmigration and in vivo murine infection to identify a system in which two epithelium-localized ATP-binding cassette transporters, MRP1 and MRP2, have inverse activities ...
General Microbiology (Dalton State), 2018 Dalton State College
General Microbiology (Dalton State), April Kay, Susan Burran, Leah Howell
Biological Sciences Grants Collections
This Grants Collection for General Microbiology was created under a Round Nine ALG Textbook Transformation Grant.
Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.
Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:
- Linked Syllabus
- Initial Proposal
- Final Report
Utilizing Molecular And Statistical Modeling Methods To Enhance White Nose Syndrome Detection In Bat Hibernacula, 2018 Pittsburg State University
Utilizing Molecular And Statistical Modeling Methods To Enhance White Nose Syndrome Detection In Bat Hibernacula, Samuel Miller
Electronic Thesis Collection
White Nose Syndrome (WNS) is a fungal infection in bats caused by Pseudogymnoascus destructans (Pd). Successfully identifying hibernacula infected with WNS is essential to help control and regulate the spread of WNS. Assessing the presence of WNS in bat hibernacula is usually done by visually confirming Pd on hibernating bats within infected hibernacula. This can be problematic because most visual confirmation occurs during the winter when bat populations are at their peak within hibernacula. When surveys are conducted in the winter, there is an increased chance of disturbing bats. One alternative method to visually confirming WNS on bats in the ...
Arthropod Transcriptional Activator Protein-1 (Ap-1) Aids Tick-Rickettsial Pathogen Survival In The Cold, 2018 Old Dominion University
Arthropod Transcriptional Activator Protein-1 (Ap-1) Aids Tick-Rickettsial Pathogen Survival In The Cold, Supreet Khanal, Vikas Taank, John F. Anderson, Hameeda Sultana, Girish Neelakanta
Biological Sciences Faculty Publications
Ixodes scapularis ticks transmit several pathogens to humans including rickettsial bacterium, Anaplasma phagocytophilum. Here, we report that A. phagocytophilum uses tick transcriptional activator protein-1 (AP-1) as a molecular switch in the regulation of arthropod antifreeze gene, iafgp. RNAi-mediated silencing of ap-1 expression significantly affected iafgp gene expression and A. phagocytophilum burden in ticks upon acquisition from the murine host. Gel shift assays provide evidence that both the bacterium and AP-1 influences iafgp promoter and expression. The luciferase assays revealed that a region of approximately 700 bp upstream of the antifreeze gene is sufficient for AP-1 binding to promote iafgp gene ...
Clinicopathologic Features Of Invasive Metaplastic And Micropapillary Breast Carcinoma: Comparison With Invasive Ductal Carcinoma Of Breast, 2018 Liaquat National Hospital and Medical College
Clinicopathologic Features Of Invasive Metaplastic And Micropapillary Breast Carcinoma: Comparison With Invasive Ductal Carcinoma Of Breast, Atif Ali Hashmi, Saher Aijaz, Raeesa Mahboob, Saadia Mehmood Khan, Muhammad Irfan, Narisa Iftikhar, Mariam Nisar, Maham Siddiqui, Muhammad Muzzammil Edhi, Naveen Faridi, Amir Khan
Department of Pathology and Laboratory Medicine
Objective: The aim of this study was to determine the frequency of metaplastic breast carcinoma and invasive micropapillary carcinoma in our population and also to compare the clinico-pathologic features of metaplastic breast carcinoma and invasive micropapillary carcinoma with invasive ductal carcinoma, not otherwise specified (IDC, NOS).
Result: 86.9% of the cases were identified as ductal carcinoma, NOS, while 2.2% were metaplastic and 0.76% cases were micropapillary carcinoma. Metaplastic carcinomas were found to be of higher grade as compared to IDC, NOS as 81% of metaplastic carcinoma were grade III compared to 35% IDC, NOS. 79% of metaplastic ...
Self-Resistance During Muraymycin Biosynthesis: A Complementary Nucleotidyltransferase And Phosphotransferase With Identical Modification Sites And Distinct Temporal Order, 2018 University of Kentucky
Self-Resistance During Muraymycin Biosynthesis: A Complementary Nucleotidyltransferase And Phosphotransferase With Identical Modification Sites And Distinct Temporal Order, Zheng Cui, Xia-Chang Wang, Xiaodong Liu, Anke Lemke, Stefan Koppermann, Christian Ducho, Jürgen Rohr, Jon S. Thorson, Steven G. Van Lanen
Pharmaceutical Sciences Faculty Publications
Muraymycins are antibacterial natural products from Streptomyces spp. that inhibit translocase I (MraY), which is involved in cell wall biosynthesis. Structurally, muraymycins consist of a 5′-C-glycyluridine (GlyU) appended to a 5″-amino-5″-deoxyribose (ADR), forming a disaccharide core that is found in several peptidyl nucleoside inhibitors of MraY. For muraymycins, the GlyU-ADR disaccharide is further modified with an aminopropyl-linked peptide to generate the simplest structures, annotated as the muraymycin D series. Two enzymes encoded in the muraymycin biosynthetic gene cluster, Mur29 and Mur28, were functionally assigned in vitro as a Mg·ATP-dependent nucleotidyltransferase and a Mg·ATP-dependent phosphotransferase ...
Bacteriophages For Treating American Foulbrood And The Neutralization Of Paenibacillus Larvae Spores, 2018 Brigham Young University
Bacteriophages For Treating American Foulbrood And The Neutralization Of Paenibacillus Larvae Spores, Thomas Scott Brady
All Theses and Dissertations
The causative agent of the most devastating honeybee disease, American foulbrood (AFB), is the spore-forming bacterium Paenibacillus larvae. To prevent AFB outbreaks beekeepers prophylactically treat their hives with antibiotics even though it decreases the overall health of uninfected hives. A new treatment for AFB is needed due to recent legislation against using antibiotics, antibiotic resistance developing in P. larvae, and the resilience of P. larvae spores. Bacteriophages, or phages, are an attractive alternative to traditional antibiotics because of their specificity and ability to evolve alongside their target bacterium. In this study, two phage cocktails were developed for the treatment of ...
The Diversity Found Among Carbapenem-Resistant Bacteria, 2018 Brigham Young University
The Diversity Found Among Carbapenem-Resistant Bacteria, Galen Edward Card
All Theses and Dissertations
This work will look at two factors that add to the diversity of carbapenem resistant bacteria. First, it focuses on the diversity of carbapenemase resistance plasmids. 446 plasmids were characterized by size, gene content and replicon groups. We identified that on average, over 30% of the encoded proteins on each plasmid have an unknown function. Plasmid sizes ranged from 1.6kb to 500kb, with an average of around 100kb and median of 80kb. Additionally, six replicon groups account for 80% of all the carbapenemase resistance plasmids. We also highlight the lack of data available for carbapenemase carrying plasmids from bacterial ...
Incidence Of Acute Kidney Injury Among Patients Treated With Piperacillin-Tazobactam Or Meropenem In Combination With Vancomycin, Wilbur Cliff Rutter, David S. Burgess
Pharmacy Practice and Science Faculty Publications
Acute kidney injury (AKI) increases during empirical antimicrobial therapy with the combination of piperacillin-tazobactam (TZP) and vancomycin (VAN) compared to the number of incidences with monotherapy or the combination of cefepime and VAN. Limited data regarding the impact of meropenem (MEM) combined with VAN exist. This study examined the AKI incidence among patients treated with MEM plus VAN (MEM+VAN) or TZP+VAN. Data were collected from the University of Kentucky Center for Clinical and Translational Science Enterprise Data Trust from September 2007 through October 2015. Adults without previous renal disease who received MEM+VAN or TZP+VAN for at ...
A Broad Spectrum Racemase In Pseudomonas Putida Kt2440 Plays A Key Role In Amino Acid Catabolism, 2018 University of California - San Francisco
A Broad Spectrum Racemase In Pseudomonas Putida Kt2440 Plays A Key Role In Amino Acid Catabolism, Atanas D. Radkov, Luke A. Moe
Plant and Soil Sciences Faculty Publications
The broad-spectrum amino acid racemase (Alr) of Pseudomonas putida KT2440 preferentially interconverts the L- and D-stereoisomers of Lys and Arg. Despite conservation of broad-spectrum racemases among bacteria, little is known regarding their physiological role. Here we explore potential functional roles for Alr in P. putida KT2440. We demonstrate through cellular fractionation that Alr enzymatic activity is found in the periplasm, consistent with its putative periplasm targeting sequence. Specific activity of Alr is highest during exponential growth, and this activity corresponds with an increased accumulation of D-Lys in the growth medium. An alr gene knockout strain (Δalr) was generated and ...
Novel Role Of Pseudomonas Aeruginosa Lptd Operon, 2018 Florida International University
Novel Role Of Pseudomonas Aeruginosa Lptd Operon, Sundar Pandey
FIU Electronic Theses and Dissertations
Pseudomonas aeruginosais an opportunistic pathogen that infects cystic fibrosis (CF) patients contributing to their high morbidity and mortality. P. aeruginosaundergoes a phenotypic conversion in the CF lung, from nonmucoid to mucoid, by constitutively producing a polysaccharide called alginate. These mucoid strains often revert to nonmucoid in vitrodue to second-site suppressor mutations. We hypothesized that mapping these mutations would lead to the identification of novel genes involved in alginate production. In a previous study, a mucoid strain, PDO300 (PAOmucA22), was used to isolate suppressors of alginate phenotype (sap). One of the uncharacterized nonmucoid revertants, sap27, is the ...
The Role Of Eukaryotic Abc-Transporters In Eliciting Neutrophil Infiltration During Streptococcus Pneumoniae Infection, 2018 University of Massachusetts Medical School
The Role Of Eukaryotic Abc-Transporters In Eliciting Neutrophil Infiltration During Streptococcus Pneumoniae Infection, Andrew Zukauskas
GSBS Dissertations and Theses
Streptococcus pneumoniae (S. pneumoniae) is a Gram-positive, encapsulated bacterium capable of causing significant morbidity and mortality throughout the world. A hallmark of S. pneumoniae infection is infiltration of neutrophils (PMNs) that assist in controlling the spread infection but may also contribute to pathology. Paradoxically, studies have shown that limiting PMN infiltration into the lumen of the lung during infection actually betters clinical outcome in experimental S. pneumoniae infection. The final step in PMN luminal trafficking is a Hepoxilin A3 (HXA3)-dependent migration across the pulmonary epithelium. HXA3 is a PMN chemoattractant that forms gradients along the polarized epithelial ...
Transcriptome Analysis Of Neisseria Gonorrhoeae During Natural Infection Reveals Differential Expression Of Antibiotic Resistance Determinants Between Men And Women, Kathleen Nudel, Ryan Mcclure, Matthew Moreau, Emma Briars, A. Jeanine Abrams, Brian Tjaden, Xiao-Hong Su, David Trees, Peter A. Rice, Paola Massari, Caroline A. Genco
Open Access Articles
Neisseria gonorrhoeae is a bacterial pathogen responsible for the sexually transmitted infection gonorrhea. Emergence of antimicrobial resistance (AMR) of N. gonorrhoeae worldwide has resulted in limited therapeutic choices for this infection. Men who seek treatment often have symptomatic urethritis; in contrast, gonococcal cervicitis in women is usually minimally symptomatic, but may progress to pelvic inflammatory disease. Previously, we reported the first analysis of gonococcal transcriptome expression determined in secretions from women with cervical infection. Here, we defined gonococcal global transcriptional responses in urethral specimens from men with symptomatic urethritis and compared these with transcriptional responses in specimens obtained from women ...