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Articles 1 - 10 of 10
Full-Text Articles in Medicine and Health Sciences
Lim Kinase Regulation Of Cytoskeletal Dynamics Is Required For Salivary Gland Branching Morphogenesis, Shayoni Ray, Joseph A. Fanti, Diego P. Macedo, Melinda Larsen
Lim Kinase Regulation Of Cytoskeletal Dynamics Is Required For Salivary Gland Branching Morphogenesis, Shayoni Ray, Joseph A. Fanti, Diego P. Macedo, Melinda Larsen
Biological Sciences Faculty Scholarship
Coordinated actin microfilament and microtubule dynamics is required for salivary gland development, although the mechanisms by which they contribute to branching morphogenesis are not defined. Because LIM kinase (LIMK) regulates both actin and microtubule organization, we investigated the role of LIMK signaling in mouse embryonic submandibular salivary glands using ex vivo organ cultures. Both LIMK 1 and 2 were necessary for branching morphogenesis and functioned to promote epithelial early- and late-stage cleft progression through regulation of both microfilaments and microtubules. LIMK-dependent regulation of these cytoskeletal systems was required to control focal adhesion protein– dependent fibronectin assembly and integrin β1 activation, …
Microfluidic Platform For The Elastic Characterization Of Mouse Submandibular Glands By Atomic Force Microscopy, Aaron P. Mosier, Sarah B. Peters, Melinda Larsen, Nathaniel C. Cady
Microfluidic Platform For The Elastic Characterization Of Mouse Submandibular Glands By Atomic Force Microscopy, Aaron P. Mosier, Sarah B. Peters, Melinda Larsen, Nathaniel C. Cady
Biological Sciences Faculty Scholarship
The ability to characterize the microscale mechanical properties of biological materials has the potential for great utility in the field of tissue engineering. The development and morphogenesis of mammalian tissues are known to be guided in part by mechanical stimuli received from the local environment, and tissues frequently develop to match the physical characteristics (i.e., elasticity) of their environment. Quantification of these material properties at the microscale may provide valuable information to guide researchers. Presented here is a microfluidic platform for the non-destructive ex vivo microscale mechanical characterization of mammalian tissue samples by atomic force microscopy (AFM). The device was …
Integrins Promote Cytokinesis Through The Rsk Signaling Axis, Shomita S. Mathew, Bethsaida Nieves, Sharon Sequeira, Savitha Sambandamoorthy, Kevin Pumiglia, Melinda Larsen, Susan E. Laflamme
Integrins Promote Cytokinesis Through The Rsk Signaling Axis, Shomita S. Mathew, Bethsaida Nieves, Sharon Sequeira, Savitha Sambandamoorthy, Kevin Pumiglia, Melinda Larsen, Susan E. Laflamme
Biological Sciences Faculty Scholarship
Cytokinesis is the final stage in cell division. Although integrins can regulate cytokinesis, the mechanisms involved are not fully understood. In this study, we demonstrate that integrin-regulated ERK (extracellular signal-related kinase) and RSK (p90 ribosomal S6 kinase) signaling promotes successful cytokinesis. Inhibiting the activation of ERK and RSK in CHO cells by a mutation in the integrin b1 cytoplasmic tail or with pharmacological inhibitors results in the accumulation of cells with midbodies and the formation of binucleated cells. Activation of ERK and RSK signaling by the expression of constitutively active RAF1 suppresses the mutant phenotype in a RSK-dependent manner. Constitutively …
Atrazine In Maternal Drinking Water Supply Below The Federal Maximum Contaminant Level And Risk Of Preterm Birth, Small For Gestational Age, Cryptorchidism And Hypospadias, Daniel Rice
Legacy Theses & Dissertations (2009 - 2024)
The prevalence of preterm birth, small for gestational age (SGA), and hypospadias has been increasing for several decades in the U.S resulting in significant morbidity and mortality and direct costs to society. Drinking water provides a mechanism for prolonged chronic exposure to environmental contaminants but is one of the least assessed environmental exposures in pregnancy and birth outcomes. To test the hypothesis that maternal exposure to atrazine through drinking water during pregnancy, or one or more trimesters of gestation, is associated with an increased risk of preterm birth, small for gestational age, cryptorchidism and hypospadias a retrospective cohort study was …
Paternal Occupational Pesticide Exposure And Neural Tube Defects In The National Birth Defects Prevention Study, Stacy Marie Pettigrew
Paternal Occupational Pesticide Exposure And Neural Tube Defects In The National Birth Defects Prevention Study, Stacy Marie Pettigrew
Legacy Theses & Dissertations (2009 - 2024)
ABSTRACT
Exposure Assessment And Risk Management Of Engineered Nanoparticles : Investigation In Semiconductor Wafer Processing, Michele Shepard
Exposure Assessment And Risk Management Of Engineered Nanoparticles : Investigation In Semiconductor Wafer Processing, Michele Shepard
Legacy Theses & Dissertations (2009 - 2024)
Engineered nanomaterials (ENMs) are currently used in hundreds of commercial products and industrial processes, with more applications being investigated. Nanomaterials have unique properties that differ from bulk materials. While these properties may enable technological advancements, the potential risks of ENMs to people and the environment are not yet fully understood. Certain low solubility nanoparticles are more toxic than their bulk material, such that existing occupational exposure limits may not be sufficiently protective for workers. Risk assessments are currently challenging due to gaps in data on the numerous emerging materials and applications as well as method uncertainties and limitations.
Sleep Duration And Diabetes In An Adult Population Of Rural Upstate New York, Tarak Shrestha
Sleep Duration And Diabetes In An Adult Population Of Rural Upstate New York, Tarak Shrestha
Legacy Theses & Dissertations (2009 - 2024)
Introduction: Within the past five decades, there has been a rapid increase in the number of diabetic cases in the US. The number of diabetic cases increased from 1.5 million in 1959 to 25.8 million in 2011. Around the same time period, the average sleep duration per night decreased from 8 hours to 6.9 hours.
Perfluorinated Compounds, Thyroid Function, And Neuropsychological Status In Older Residents Of Upper Hudson River Communities, Srishti Shrestha
Perfluorinated Compounds, Thyroid Function, And Neuropsychological Status In Older Residents Of Upper Hudson River Communities, Srishti Shrestha
Legacy Theses & Dissertations (2009 - 2024)
Perfluorinated compounds (PFCs) are widespread in the environment. Minimal data exist regarding the neurotoxicity and thyroid disruptive property of PFCs in aging populations and the possible mediating effects of thyroid hormones (THs). In this study, we assessed associations among PFCs, thyroid function, and neuropsychological status, and determined if the neurotoxic effects of PFCs are mediated by changes in THs in an aging population. We measured perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS), thyroid stimulating hormone (TSH), total thyroxine (T4), free T4 (fT4), and total triiodothyronine (T3) in serum and performed neuropsychological tests in men and women aged 55-74 years and living …
Molecular Actions Of The Novel Histone Deacetylase Inhibitor Cg-1521 In Models Of Inflammatory Breast Cancer, Namita Chatterjee
Molecular Actions Of The Novel Histone Deacetylase Inhibitor Cg-1521 In Models Of Inflammatory Breast Cancer, Namita Chatterjee
Legacy Theses & Dissertations (2009 - 2024)
Inflammatory breast cancer (IBC) is a rare and particularly lethal form of breast cancer. Despite aggressive therapeutic approaches, the 5-year survival rate is only 34%. As this disease is severely understudied, we have investigated the therapeutic potential of the novel hydroxamic acid-derived histone deacetylase inhibitor (HDACi), CG-1521 in comparison to a structurally similar compound, Trichostatin A (TSA) in two IBC cell lines: SUM149PT and SUM190PT. In these cells, CG-1521 and TSA induce dose- and time-dependent induction of cell cycle arrest and apoptosis regardless of the presence of 17β-estradiol (E2). Interestingly, the cell lines have considerably different sensitivities to these treatments …
Novel Partner Notification Approaches In New York State, And Antibiotic Resistance In The Management Of Chlamydia Trachomatis Infections, Christopher Frank Davis
Novel Partner Notification Approaches In New York State, And Antibiotic Resistance In The Management Of Chlamydia Trachomatis Infections, Christopher Frank Davis
Legacy Theses & Dissertations (2009 - 2024)
Chlamydia trachomatis (chlamydia) is the most frequently reported notifiable disease in the United States. This dissertation provides an evaluation of chlamydia treatment and control through three different lenses: 1) patient views on a novel strategy to facilitate treatment, 2) student perceptions about materials to promote treatment of sexual partners, and 3) evidence regarding recurrent infection etiology.