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Articles 31 - 41 of 41
Full-Text Articles in Medical Cell Biology
Peroxisomal Multifunctional Protein 2 Deficiency Perturbs Lipid Homeostasis In The Retina And Causes Visual Dysfunction In Mice, Yannick Das, Daniëlle Swinkels, Sai Kocherlakota, Stefan Vinckier, Frédéric M. Vaz, Eric Wever, Antoine H.C. Van Kampen, Bokkyoo Jun, Khanh V. Do, Lieve Moons, Nicolas G. Bazan, Paul P. Van Veldhoven, Myriam Baes
Peroxisomal Multifunctional Protein 2 Deficiency Perturbs Lipid Homeostasis In The Retina And Causes Visual Dysfunction In Mice, Yannick Das, Daniëlle Swinkels, Sai Kocherlakota, Stefan Vinckier, Frédéric M. Vaz, Eric Wever, Antoine H.C. Van Kampen, Bokkyoo Jun, Khanh V. Do, Lieve Moons, Nicolas G. Bazan, Paul P. Van Veldhoven, Myriam Baes
School of Medicine Faculty Publications
Patients lacking multifunctional protein 2 (MFP2), the central enzyme of the peroxisomal β-oxidation pathway, develop retinopathy. This pathway is involved in the metabolism of very long chain (VLCFAs) and polyunsaturated (PUFAs) fatty acids, which are enriched in the photoreceptor outer segments (POS). The molecular mechanisms underlying the retinopathy remain, however, elusive. Here, we report that mice with MFP2 inactivation display decreased retinal function already at the age of 3 weeks, which is accompanied by a profound shortening of the photoreceptor outer and inner segments, but with preserved photoreceptor ultrastructure. Furthermore, MFP2 deficient retinas exhibit severe changes in gene expression with …
Locating Specific Acupoints Large Intestine 4 (Li4) And Large Intestine 6 (Li6) In Cadavers Using Anthropometric And Cun Measurement Systems, Gregory P. Casey
Locating Specific Acupoints Large Intestine 4 (Li4) And Large Intestine 6 (Li6) In Cadavers Using Anthropometric And Cun Measurement Systems, Gregory P. Casey
School of Medicine Faculty Publications
Background: Anthropometric and anatomical Chinese inch measurement (CUN) systems are useful in understanding the location of acupoints; however, locating acupoints is challenging. Objectives: The study aimed to locate LI4 and LI6, to measure differences and similarities in body dimensions based on sex using anthropometric and CUN systems, and to observe the relationship between f-cun and b-cun. Methods: 25 forearms and hands from 16 embalmed cadavers had body dimensions measured using anthropometric and CUN systems. LI4 and LI6 were located using a combination of both systems. Data were compiled and calculated to observe any variation in means and ranges. Statistical analysis …
Effect Of High-Dose Vs Standard-Dose Vitamin D Supplementation On Body Composition Among Patients With Advanced Or Metastatic Colorectal Cancer: A Randomized Trial, Justin C. Brown, Michael H. Rosenthal, Chao Ma, Sui Zhang, Halla S. Nimeiri, Nadine J. Mccleary, Thomas A. Abrams, Matthew B. Yurgelun, James M. Cleary, Douglas A. Rubinson, Deborah Schrag, Andrea J. Bullock, Jill Allen, Dan Zuckerman, Emily Chan, Jennifer A. Chan, Brian Wolpin, Michael Constantine
Effect Of High-Dose Vs Standard-Dose Vitamin D Supplementation On Body Composition Among Patients With Advanced Or Metastatic Colorectal Cancer: A Randomized Trial, Justin C. Brown, Michael H. Rosenthal, Chao Ma, Sui Zhang, Halla S. Nimeiri, Nadine J. Mccleary, Thomas A. Abrams, Matthew B. Yurgelun, James M. Cleary, Douglas A. Rubinson, Deborah Schrag, Andrea J. Bullock, Jill Allen, Dan Zuckerman, Emily Chan, Jennifer A. Chan, Brian Wolpin, Michael Constantine
School of Medicine Faculty Publications
Skeletal muscle and adipose tissue express the vitamin D receptor and may be a mechanism through which vitamin D supplementation slows cancer progression and reduces cancer death. In this exploratory analysis of a double-blind, multicenter, randomized phase II clinical trial, 105 patients with advanced or metastatic colorectal cancer who were receiving chemotherapy were randomized to either high-dose vitamin D3 (4000 IU) or standard-dose (400 IU) vitamin D3. Body composition was measured with abdominal computed tomography at enrollment (baseline) and after cycle 8 of chemotherapy (16 weeks). As compared with standard-dose vitamin D3, high-dose vitamin D3 did not significantly change body …
Constitutive Genetic Deletion Of Hcn1 Increases Alcohol Preference During Adolescence, Michael C. Salling, Neil L. Harrison
Constitutive Genetic Deletion Of Hcn1 Increases Alcohol Preference During Adolescence, Michael C. Salling, Neil L. Harrison
School of Medicine Faculty Publications
The hyperpolarization-activated cyclic nucleotide-gated channel (HCN), which underlies the hyperpolarization-activated cation current (Ih), has diverse roles in regulating neuronal excitability across cell types and brain regions. Recently, HCN channels have been implicated in preclinical models of substance abuse including alcohol. In the prefrontal cortex of rodents, HCN expression and Ih magnitude are developmentally regulated during adolescence and may be vulnerable to alcohol’s effects. In mice, binge alcohol consumption during the adolescent period results in a sustained reduction in Ih that coincides with increased alcohol consumption in adulthood, yet the direct role HCN channels have on alcohol consumption are unknown. Here, …
Stem Crisis Teaching: Curriculum Design With E-Learning Tools, Sonya E. Van Nuland, Elissa Hall, Natalie R. Langley
Stem Crisis Teaching: Curriculum Design With E-Learning Tools, Sonya E. Van Nuland, Elissa Hall, Natalie R. Langley
School of Medicine Faculty Publications
The COVID-19 pandemic and subsequent social distancing protocols have accelerated the shift to online teaching across the globe. In Science, Technology, Engineering, and Mathematics (STEM) programs this means a shift from face-to-face laboratory instruction to self-directed learning with e-learning tools. Unfortunately, selecting and integrating an e-learning tool into a curriculum can be daunting. This article highlights key questions and practical suggestions instructors should consider in choosing the most effective option for their course and learners.
Ribonucleotide Reductase Inhibitor 3-Ap Induces Oncogenic Virus Infected Cell Death And Represses Tumor Growth, Lu Dai, Jungang Chen, Yueyu Cao, Luis Del Valle, Zhiqiang Qin
Ribonucleotide Reductase Inhibitor 3-Ap Induces Oncogenic Virus Infected Cell Death And Represses Tumor Growth, Lu Dai, Jungang Chen, Yueyu Cao, Luis Del Valle, Zhiqiang Qin
School of Medicine Faculty Publications
Kaposi's Sarcoma-associated Herpesvirus (KSHV) is the etiologic agent of several human malignancies, particularly Kaposi's Sarcoma (KS), which preferentially arise in immunocompromised patients such as HIV+ subpopulation while still lacking of effective therapeutic options. We recently found that the ribonucleotide reductase (RR) subunit M2 is potentially regulated by the key oncogenic HGF/c-MET pathway in KSHV-related lymphoma cells. One of RR inhibitor, 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (3-AP) effectively induced apoptosis of KSHV+ lymphomas and suppressed tumor progression . In the current study, we found that 3-AP treatment selectively inhibited the proliferation of KSHV-infected endothelial cells, the major cellular components of KS, through inducing DNA …
A Mirna Signature For Cognitive Deficits And Alcohol Use Disorder In Persons Living With Hiv/Aids, Dorota Wyczechowska, Hui-Yi Lin, Andrea Laplante, Duane Jeansonne, Adam Lassak, Christopher H. Parsons, Patricia E. Molina, Francesca Peruzzi
A Mirna Signature For Cognitive Deficits And Alcohol Use Disorder In Persons Living With Hiv/Aids, Dorota Wyczechowska, Hui-Yi Lin, Andrea Laplante, Duane Jeansonne, Adam Lassak, Christopher H. Parsons, Patricia E. Molina, Francesca Peruzzi
School of Medicine Faculty Publications
HIV-associated neurocognitive disorders (HAND) affects more than half of persons living with HIV-1/AIDS (PLWHA). Identification of biomarkers representing the cognitive status of PLWHA is a critical step for implementation of successful cognitive, behavioral and pharmacological strategies to prevent onset and progression of HAND. However, the presence of co-morbidity factors in PLWHA, the most common being substance abuse, can prevent the identification of such biomarkers. We have optimized a protocol to profile plasma miRNAs using quantitative RT-qPCR and found a miRNA signature with very good discriminatory ability to distinguish PLWHA with cognitive impairment from those without cognitive impairment. Here, we have …
Role Of Heme Oxygenase-1 In The Pathogenesis And Tumorigenicity Of Kaposi's Sarcoma-Associated Herpesvirus, Lu Dai, Jing Qiao, David Nguyen, Amanda P. Struckhoff, Lisa Doyle, Karlie Bonstaff, Luis Del Valle, Chris Parsons, Bryan P. Toole, Rolf Renne, Zhiqiang Qin
Role Of Heme Oxygenase-1 In The Pathogenesis And Tumorigenicity Of Kaposi's Sarcoma-Associated Herpesvirus, Lu Dai, Jing Qiao, David Nguyen, Amanda P. Struckhoff, Lisa Doyle, Karlie Bonstaff, Luis Del Valle, Chris Parsons, Bryan P. Toole, Rolf Renne, Zhiqiang Qin
School of Medicine Faculty Publications
Kaposi's Sarcoma-associated Herpesvirus (KSHV) is the etiologic agent of several malignancies, including Kaposi's Sarcoma (KS), which preferentially arise in immunocompromised patients such as HIV+ subpopulation and lack effective therapeutic options. Heme oxygenase-1 (HO-1) has been reported as an important regulator of endothelial cell cycle control, proliferation and angiogenesis. HO-1 has also been found to be highly expressed in KSHV-infected endothelial cells and oral AIDS-KS lesions. We previously demonstrate that the multifunctional glycoprotein CD147 is required for KSHV/LANA-induced endothelial cell invasiveness. During the identification of CD147 controlled downstream genes by microarray analysis, we found that the expression of HO-1 is significantly …
Cd147 And Downstream Adamtss Promote The Tumorigenicity Of Kaposi's Sarcoma-Associated Herpesvirus Infected Endothelial Cells, Lu Dai, Jimena Trillo-Tinoco, Yihan Chen, Karlie Bonstaff, Luis Del Valle, Chris Parsons, Augusto C. Ochoa, Jovanny Zabaleta, Bryan P. Toole, Zhiqiang Qin
Cd147 And Downstream Adamtss Promote The Tumorigenicity Of Kaposi's Sarcoma-Associated Herpesvirus Infected Endothelial Cells, Lu Dai, Jimena Trillo-Tinoco, Yihan Chen, Karlie Bonstaff, Luis Del Valle, Chris Parsons, Augusto C. Ochoa, Jovanny Zabaleta, Bryan P. Toole, Zhiqiang Qin
School of Medicine Faculty Publications
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiologic agent of several human cancers, including Kaposi's sarcoma (KS), which preferentially arise in immunocompromised patients and lack effective therapeutic options. We have previously shown that KSHV or viral protein LANA up-regulates the glycoprotein CD147, thereby inducing primary endothelial cell invasiveness. In the current study, we identify the global network controlled by CD147 in KSHV-infected endothelial cells using Illumina microarray analysis. Among downstream genes, two specific metalloproteases, ADAMTS1 and 9, are strongly expressed in AIDS-KS tissues and contribute to KSHV-infected endothelial cell invasiveness through up-regulation of IL-6 and VEGF. By using a KS-like nude …
Deregulation Of Micrornas By Hiv-1 Vpr Protein Leads To The Development Of Neurocognitive Disorders, Ruma Mukerjee, J Robert Chang, Luis Del Valle, Asen Bagashev, Monika M. Gayed, Randolph B. Lyde, Brian J. Hawkins, Eugen Brailoiu, Eric Cohen, Chris Power, S Ausim Azizi, Benjamin B. Gelman, Bassel E. Sawaya
Deregulation Of Micrornas By Hiv-1 Vpr Protein Leads To The Development Of Neurocognitive Disorders, Ruma Mukerjee, J Robert Chang, Luis Del Valle, Asen Bagashev, Monika M. Gayed, Randolph B. Lyde, Brian J. Hawkins, Eugen Brailoiu, Eric Cohen, Chris Power, S Ausim Azizi, Benjamin B. Gelman, Bassel E. Sawaya
School of Medicine Faculty Publications
Studies have shown that HIV-infected patients develop neurocognitive disorders characterized by neuronal dysfunction. The lack of productive infection of neurons by HIV suggests that viral and cellular proteins, with neurotoxic activities, released from HIV-1-infected target cells can cause this neuronal deregulation. The viral protein R (Vpr), a protein encoded by HIV-1, has been shown to alter the expression of various important cytokines and inflammatory proteins in infected and uninfected cells; however the mechanisms involved remain unclear. Using a human neuronal cell line, we found that Vpr can be taken up by neurons causing: (i) deregulation of calcium homeostasis, (ii) endoplasmic …
Ros Accumulation And Igf-Ir Inhibition Contribute To Fenofibrate/Pparalpha -Mediated Inhibition Of Glioma Cell Motility In Vitro, Justyna Drukala, Katarzyna Urbanska, Anna Wilk, Maja Grabacka, Ewa Wybieralska, Luis Del Valle, Zbigniew Madeja, Krzysztof Reiss
Ros Accumulation And Igf-Ir Inhibition Contribute To Fenofibrate/Pparalpha -Mediated Inhibition Of Glioma Cell Motility In Vitro, Justyna Drukala, Katarzyna Urbanska, Anna Wilk, Maja Grabacka, Ewa Wybieralska, Luis Del Valle, Zbigniew Madeja, Krzysztof Reiss
School of Medicine Faculty Publications
BACKGROUND: Glioblastomas are characterized by rapid cell growth, aggressive CNS infiltration, and are resistant to all known anticancer regimens. Recent studies indicate that fibrates and statins possess anticancer potential. Fenofibrate is a potent agonist of peroxisome proliferator activated receptor alpha (PPARalpha) that can switch energy metabolism from glycolysis to fatty acid beta-oxidation, and has low systemic toxicity. Fenofibrate also attenuates IGF-I-mediated cellular responses, which could be relevant in the process of glioblastoma cell dispersal. METHODS: The effects of fenofibrate on Glioma cell motility, IGF-I receptor (IGF-IR) signaling, PPARalpha activity, reactive oxygen species (ROS) metabolism, mitochondrial potential, and ATP production were …