Medical Specialties Commons^™

Obstructive Sleep Apnea Education To The Rural Community, Brandi Harris

Doctor of Nursing Practice Projects

This project was executed to provide obstructive sleep apnea education to the men and women of the rural community. Many residents of rural communities remain undereducated and unaware of diseases and disorders in which they are subjected to or have increased risks for. Obstructive sleep apnea affects approximately twenty-two billion Americans. Of those affected, nearly eighty percent remain undiagnosed and untreated (Nagappa et al., 2015). Victims of the sleep disorder fail to acknowledge signs and symptoms of obstructive sleep apnea, many oblivious to the etiology, risk factors, symptoms, and pathophysiology of the disorder. Presenting education to residents of the rural …

Aneurysmal Subarachnoid Hemorrhage And Acute Subdural Hematoma, Neurosurgical And Endovascular Rescue. Case Report., José Omar Santellan Resident, José Ramón Aguilar Dr., Abraham Ibarra Dr., Ulises García Dr.

Archives of Neurosurgery

Introduction: Acute subdural hemorrhage (aSDH) in association with aneurismal subarachnoid hemorrhage (SAH) is a severe disease with an incidence of 0.5% to 7.9% of all SAH. Due to the rarity of aneurysmal aSDH, it remains difficult to define a comprehensive management protocol. In this case review, following the CARE guidelines, we show the hybrid management of this pathology to know the importance of using different types of neurosurgical treatments in case of two severe diseases in critical patients.

We present two patients who developed sudden onset cephalea and neurological impairment secondary to aneurysmal subarachnoid hemorrhage associated with acute subdural hematoma. …

Ifn-Γ Attenuates Eosinophilic Inflammation But Is Not Essential For Protection Against Rsv-Enhanced Asthmatic Comorbidity In Adult Mice, Abenaya Muralidharan, Md Bashir Uddin, Christopher Bauer, Wenzhe Wu, Xiaoyong Bao, Keer Sun

Journal Articles: Pathology and Microbiology

The susceptibility to respiratory syncytial virus (RSV) infection in early life has been associated with a deficient T-helper cell type 1 (Th1) response. Conversely, healthy adults generally do not exhibit severe illness from RSV infection. In the current study, we investigated whether Th1 cytokine IFN-γ is essential for protection against RSV and RSV-associated comorbidities in adult mice. We found that, distinct from influenza virus, prior RSV infection does not induce significant IFN-γ production and susceptibility to secondary Streptococcus pneumoniae infection in adult wild-type (WT) mice. In ovalbumin (OVA)-induced asthmatic mice, RSV super-infection increases airway neutrophil recruitment and inflammatory lung damage …

Realistic And Critical Review Of The State Of Systemic Anti-Microbial Peptides, Guangshun Wang, Abraham F. Mechesso

Journal Articles: Pathology and Microbiology

Antimicrobial peptide research remains active not only because of the growing antibiotic resistance problem but also our desire to understand the role of innate immune peptides in host defense. While numerous peptides are currently under active development for topical use, this article highlights peptides with systemic efficacy. The scaffolds of these peptides range from linear to cyclic forms. The neutropenic mouse model is well established to illustrate antimicrobial efficacy from direct killing. The majority of tests, however, are conducted using normal mice so that both direct antimicrobial and immune regulatory effects can be characterized. These systemic examples underscore the possibility …

Insect Cell Expression And Purification Of Recombinant Sars-Cov-2 Spike Proteins That Demonstrate Ace2 Binding, Lucas R. Struble, Audrey L. Smith, William E. Lutz, Gabrielle Grubbs, Satish Sagar, Kenneth W. Bayles, Prakash Radhakrishnan, Surender Khurana, Dalia El-Gamal, Gloria E. O. Borgstahl

Journal Articles: Pathology and Microbiology

The COVID-19 pandemic caused by SARS-CoV-2 infection has led to socio-economic shutdowns and the loss of over 5 million lives worldwide. There is a need for the identification of therapeutic targets to treat COVID-19. SARS-CoV-2 spike is a target of interest for the development of therapeutic targets. We developed a robust SARS-CoV-2 S spike expression and purification protocol from insect cells and studied four recombinant SARS-CoV-2 spike protein constructs based on the original SARS-CoV-2 sequence using a baculovirus expression system: a spike protein receptor-binding domain that includes the SD1 domain (RBD) coupled to a fluorescent tag (S-RBD-eGFP), spike ectodomain coupled …

Type I Ifn Signaling Protects Mice From Lethal Sars-Cov-2 Neuroinvasion., Md Bashir Uddin, Yuejin Liang, Shengjun Shao, Sunil Palani, Michael Mckelvey, Scott C. Weaver, Keer Sun

Journal Articles: Pathology and Microbiology

Multiple organ damage is common in patients with severe COVID-19, even though the underlying pathogenic mechanisms remain unclear. Acute viral infection typically activates type I IFN (IFN-I) signaling. The antiviral role of IFN-I is well characterized in vitro. However, our understanding of how IFN-I regulates host immune response to SARS-CoV-2 infection in vivo is incomplete. Using a human ACE2-transgenic mouse model, we show in the present study that IFN-I receptor signaling is essential for protection against the acute lethality of SARS-CoV-2 in mice. Interestingly, although IFN-I signaling limits viral replication in the lung, the primary infection site, it is dispensable …

Clinical Laboratory Testing Practices In Diffuse Gliomas Prior To Publication Of 2021 World Health Organization Classification Of Central Nervous System Tumors, Shakti H. Ramkissoon, Helen Fernandes, Dolores H. Lopez-Terrada, Meera R. Hameed, Dimitri G. Trembath, Julia A. Bridge, Neal I. Lindeman, Rhona J. Souers, Patricia Vasalos, Daniel J Brat, Joel T. Moncur

Journal Articles: Pathology and Microbiology

CONTEXT.—: Integration of molecular data into glioma classification supports diagnostic, prognostic, and therapeutic decision-making; however, testing practices for these informative biomarkers in clinical laboratories remain unclear.

OBJECTIVE.—: To examine the prevalence of molecular testing for clinically relevant biomarkers in adult and pediatric gliomas through review of a College of American Pathologists proficiency testing survey prior to the release of the 2021 World Health Organization Classification of Central Nervous System Tumors.

DESIGN.—: College of American Pathologists proficiency testing 2020 survey results from 96 laboratories performing molecular testing for diffuse gliomas were used to determine the use of testing for molecular biomarkers …

Ifn-Γ Transforms The Transcriptomic Landscape And Triggers Myeloid Cell Hyperresponsiveness To Cause Lethal Lung Injury, Atul K. Verma, Michael Mckelvey, Md Bashir Uddin, Sunil Palani, Meng Niu, Christopher Bauer, Shengjun Shao, Keer Sun

Journal Articles: Pathology and Microbiology

Acute Respiratory Distress Syndrome (ARDS) is an inflammatory disease that is associated with high mortality but no specific treatment. Our understanding of initial events that trigger ARDS pathogenesis is limited. We have developed a mouse model of inflammatory lung injury by influenza and methicillin-resistant Staphylococcus aureus (MRSA) coinfection plus daily antibiotic therapy. Using this pneumonic ARDS model, here we show that IFN-γ receptor signaling drives inflammatory cytokine storm and lung tissue damage. By single-cell RNA sequencing (scRNA-seq) analysis, we demonstrate that IFN-γ signaling induces a transcriptional shift in airway immune cells, particularly by upregulating macrophage and monocyte expression of genes …

Catabolic Ornithine Carbamoyltransferase Activity Facilitates Growth Of Staphylococcus Aureus In Defined Medium Lacking Glucose And Arginine, Itidal Reslane, Cortney R. Halsey, Amanda Stastny, Barbara J. Cabrera, Jong-Sam Ahn, Dhananjay Shinde, Madeline R. Galac, Margaret F. Sladek, Fareha Razvi, Mckenzie K. Lehman, Kenneth W. Bayles, Vinai Chittezham Thomas, Luke D. Handke, Paul D. Fey

Journal Articles: Pathology and Microbiology

Previous studies have found that arginine biosynthesis in Staphylococcus aureus is repressed via carbon catabolite repression (CcpA), and proline is used as a precursor. Unexpectedly, however, robust growth of S. aureus is not observed in complete defined medium lacking both glucose and arginine (CDM-R). Mutants able to grow on agar-containing defined medium lacking arginine (CDM-R) were selected and found to contain mutations within ahrC, encoding the canonical arginine biosynthesis pathway repressor (AhrC), or single nucleotide polymorphisms (SNPs) upstream of the native arginine deiminase (ADI) operon arcA1B1D1C1. Reverse transcription-PCR (RT-PCR) studies found that mutations within ccpA or ahrC or …

Exploring Epigenetic Reprogramming During Central Nervous System Infection, Zachary Van Roy, Tammy Kielian

Journal Articles: Pathology and Microbiology

Epigenetics involves the study of various modes of adaptable transcriptional regulation, contributing to cell identity, characteristics, and function. During central nervous system (CNS) infection, epigenetic mechanisms can exert pronounced control over the maturation and antimicrobial properties of nearly every immune cell type. Epigenetics is a relatively new field, with the first mention of these marks proposed only a half-century ago and a substantial body of immunological epigenetic research emerging only in the last few decades. Here, we review the best-characterized epigenetic marks and their functions as well as illustrate how various immune cell populations responding to CNS infection utilize these …

The Staphylococcus Aureus Cida And Lrga Proteins Are Functional Holins Involved In The Transport Of By-Products Of Carbohydrate Metabolism, Jennifer L. Endres, Sujata S. Chaudhari, Xinyan Zhang, Janani Prahlad, Shu-Qi Wang, Lily A. Foley, Sorin Luca, Jeffrey L. Bose, Vinai C. Thomas, Kenneth W. Bayles

Journal Articles: Pathology and Microbiology

The Staphylococcus aureus cidABC and lrgAB operons encode members of a well-conserved family of proteins thought to be involved in programmed cell death (PCD). Based on the structural similarities that CidA and LrgA share with bacteriophage holins, we have hypothesized that these proteins function by forming pores within the cytoplasmic membrane. To test this, we utilized a "lysis cassette" system that demonstrated the abilities of the cidA and lrgA genes to support bacteriophage endolysin-induced cell lysis. Typical of holins, CidA- and LrgA-induced lysis was dependent on the coexpression of endolysin, consistent with the proposed holin-like functions of these proteins. In …

Datasets For The Reporting Of Primary Tumour In Bone: Recommendations From The International Collaboration On Cancer Reporting (Iccr), Judith V. M. G. Bovée, Fleur Webster, Fernanda Amary, Daniel Baumhoer, J. L. Hans Bloem, Julia A. Bridge, Justin M. M. Cates, Enrique De Alava, Angelo Paolo Dei Tos, Kevin B. Jones, Annabelle Mahar, G. Petur Nielsen, Alberto Righi, Andrew J. Wagner, Akihiko Yoshida, Christopher D. M. Fletcher

Journal Articles: Pathology and Microbiology

BACKGROUND AND OBJECTIVES: Bone tumours are relatively rare and, as a consequence, treatment in a centre with expertise is required. Current treatment guidelines also recommend review by a specialised pathologist. Here we report on international consensus-based datasets for the pathology reporting of biopsy and resection specimens of bone sarcomas. The datasets were produced under the auspices of the International Collaboration on Cancer Reporting (ICCR), a global alliance of major (inter-)national pathology and cancer organisations.

METHODS AND RESULTS: According to the ICCR's process for dataset development, an international expert panel consisting of pathologists, an oncologic orthopaedic surgeon, a medical oncologist, and …

Improved Database Filtering Technology Enables More Efficient Ab Initio Design Of Potent Peptides Against Ebola Viruses, Thomas Ripperda, Yangsheng Yu, Atul Verma, Elizabeth Klug, Michellie Thurman, St. Patrick Reid, Guangshun Wang

Journal Articles: Pathology and Microbiology

The rapid mutations of viruses such as SARS-CoV-2 require vaccine updates and the development of novel antiviral drugs. This article presents an improved database filtering technology for a more effective design of novel antiviral agents. Different from the previous approach, where the most probable parameters were obtained stepwise from the antimicrobial peptide database, we found it possible to accelerate the design process by deriving multiple parameters in a single step during the peptide amino acid analysis. The resulting peptide DFTavP1 displays the ability to inhibit Ebola virus. A deviation from the most probable peptide parameters reduces antiviral activity. The designed …

Obstructive Sleep Apnea And Cardiovascular Disease, Evan Gagnon

Graduate Research Projects

No abstract provided.

Comparison Of Landing Biomechanics Between Different Competitive Levels Of Irish Dance, Jade Shields

West Chester University Master’s Theses

Abstract

Objectives: To determine differences in lower limb landing biomechanics and lower extremity function scale scores between champion levels, in young female Irish dancers.

Design: Cross-sectional.

Setting: McDade-Cara School of Irish Dance

Participants: 12 Open Champion (OC) level female Irish dancers (11.9 ± 3.37 years) and 9 Preliminary Champion (PC) Irish dancers (13.5 ± 3.37 years) performed the landing error scoring system test (LESS), and completed the lower extremity functional scale (LEFS) and a descriptive data questionnaire

Main outcome measures: LESS scoring sheet and LEFS PRO

Results: No significant differences found between OC and PC levels on …

Mechanical Understanding And Optimization Of Template Guided Core Needle Biopsy, Isaac Girgis

Honors Undergraduate Theses

Prostate cancer is the second highest cause of cancer related deaths among men. According to the diagnostic pathway for prostate cancer, a prostate biopsy is performed if an individual showed signs of lesions through high prostate-specific antigen (PSA) concentration or suggestive digital rectal exam (DRE) results. The core biopsy mechanism involves inserting a beveled needle into the organ and removing a cylindrical fragment of tissue. Many factors affect the histological quality of the sample, including fragmentation, needle deflection, and needle insertion velocity. If a biopsy core is not clinically viable, an alternative core will need to be taken, resulting in …

Biofilms: Formation, Research Models, Potential Targets, And Methods For Prevention And Treatment, Yajuan Su, Jaime T. Yrastorza, Mitchell Matis, Jenna Cusick, Siwei Zhao, Guangshun Wang, Jingwei Xie

Journal Articles: Pathology and Microbiology

Due to the continuous rise in biofilm-related infections, biofilms seriously threaten human health. The formation of biofilms makes conventional antibiotics ineffective and dampens immune clearance. Therefore, it is important to understand the mechanisms of biofilm formation and develop novel strategies to treat biofilms more effectively. This review article begins with an introduction to biofilm formation in various clinical scenarios and their corresponding therapy. Established biofilm models used in research are then summarized. The potential targets which may assist in the development of new strategies for combating biofilms are further discussed. The novel technologies developed recently for the prevention and treatment …

Effectiveness Of Stabilized Hypochlorous Acid In Acute Peritonitis Treatment: A Murine Surgical Study, Benjamin Michael Pomeroy

Graduate Theses/Dissertations

Peritonitis is an inflammatory condition affecting the mesothelial cells that line the peritoneal cavity and is commonly induced by bowel perforations. This medical emergency is treated through antibiotic therapy and surgical intervention followed by tissue irrigation (lavage). Acute treatments aim to remove the bacterial burden, however recurring peritoneal infections occur at high rates and contribute to patient morbidity. These recurring infections are likely due to the inability of lavage solutions to remove the entire massive intra-abdominal bacterial load due to intestinal perforation. Numerous antiseptic solutions and antibiotic additives have been evaluated in their ability to improve source control by abdominal …

Adenoviral-Vectored Centralized Consensus Hemagglutinin Vaccine Provides Broad Protection Against H2 Influenza A Virus, Erika M. Petro-Turnquist, Brianna L. Bullard, Matthew J. Pekarek, Eric A. Weaver

Nebraska Center for Virology: Faculty Publications

Several influenza pandemics have occurred in the past century, one of which emerged in 1957 from a zoonotic transmission of H2N2 from an avian reservoir into humans. This pandemic caused 2–4 million deaths and circulated until 1968. Since the disappearance of H2N2 from human populations, there has been waning immunity against H2, and this subtype is not currently incorporated into seasonal vaccines. However, H2 influenza remains a pandemic threat due to consistent circulation in avian reservoirs. Here, we describe a method of pandemic preparedness by creating an adenoviral-vectored centralized consensus vaccine design against human H2 influenza. We also assessed the …

The Application Of The Skin Virome For Human Identification, Ema H. Graham, Jennifer Clarke, Samodha Fernando, Joshua Herr, Michael Adamowicz

Nebraska Center for Virology: Faculty Publications

The use of skin virome offers a unique approach for human identification purposes in instances where a viable and statistically relevant human DNA profile is unavailable. The skin virome may act as an alternative DNA profile and/or an additional form of probative genetic material. To date, no study has attempted to investigate the human virome over a time series across various physical locations of the body to identify its diagnostic potential as a tool for human identification. For this study, we set out to evaluate the stability, diversity, and individualization of the human skin virome. An additional goal was to …

Effectiveness Of Stricter Vaccine Mandates In Public Schools And Childcare Centers, Anna Ferentinos

Emerging Writers

Vaccines have been a controversial and frequently discussed topic the last two years due to the COVID-19 pandemic. The amount of readily available information on the internet - accurate or not – has led to many theories and opinions on whether to vaccinate and why, or why not. This article discusses these theories, as well as the benefits and consequences of vaccine mandates, with the help of examples from other countries. The author argues that a federal vaccine mandate should be implemented in the United States of America so as to encourage parents to protect children through scheduled immunizations.

Stereotactic Radiosurgery For Pituitary Adenomas: A Review Of Literature, Kaynat Siddiqui, Saqib Kamran Bakhshi, Muhammad Shahzad Shamim

Section of Neurosurgery

Stereotactic radiosurgery (SRS) is a choice of treatment for pituitary adenomas (PA), particularly for residual or recurrent disease, apart from surgery. It has a progression free survival and endocrine remission rate comparable to surgery, with fewer side effects, making it an ideal tool for dealing with PA. In this review, we have discussed the role of SRS for primary as well as post-operative residual/ recurrent PA, and have assessed its safety and outcomes.

ผลของการฝึกโยคะร่วมกับการฝึกกระตุ้นระบบรับรู้การทรงตัวในหูชั้นในต่อการทรงตัวในผู้สูงอายุเพศหญิง, อาทิตย์ งามชื่น

Chulalongkorn University Theses and Dissertations (Chula ETD)

จากการศึกษาที่ผ่านมา ไม่ได้มีเพียงแค่การฝึกเสริมสร้างความแข็งแรงของกล้ามเนื้อและร่างกายเท่านั้นที่ส่งผลต่อการเพิ่มความสามารถในการทรงตัว แต่ยังพบว่าการฝึกกระตุ้นระบบรับรู้การทรงตัวในหูชั้นในส่งผลต่อความสามารถในการทรงตัวที่เพิ่มขึ้นได้เช่นกัน เพื่อให้ครอบคลุมถึงกลไกการควบคุมการทรงตัว ผู้วิจัยจึงสนใจการฝึกกระตุ้นการทำงานของระบบประสาทสั่งการ vestibulo-ocular reflex pathway โดยมีวัตถุประสงค์เพื่อศึกษาเปรียบเทียบผลของการฝึกโยคะร่วมกับการฝึกกระตุ้นระบบรับรู้การทรงตัวในหูชั้นใน (YOGA+VSE) และ การฝึกโยคะเพียงอย่างเดียว (YOGA) ต่อความสามารถในการทรงตัวในผู้สูงอายุเพศหญิง ผู้เข้าร่วมวิจัยจะถูกสุ่มแบ่งออกเป็น 2 กลุ่ม คือ กลุ่ม YOGA+VSE (n=19) และ กลุ่ม YOGA (n=15) ทั้งสองกลุ่มจะได้รับการฝึกออกกำลังกาย 3 วัน/สัปดาห์ เป็นระยะเวลา 8 สัปดาห์ ซึ่งผู้เข้าร่วมวิจัยจะได้รับการทดสอบ Berg Balance Score, Time Up and Go, การควบคุมจุดศูนย์กลางแรงดันร่างกาย (center of pressure) ขณะยืน และการควบคุมจุดศูนย์กลางแรงโน้มถ่วงร่างกาย (center of gravity) ขณะเดิน ก่อนเข้าร่วมการฝึก หลังเข้าร่วมการฝึก 4 สัปดาห์ และ 8 สัปดาห์ ผลจากการศึกษา ภายหลังการฝึกออกกำลังกาย 8 สัปดาห์ พบว่าการควบคุมจุดศูนย์กลางแรงดันร่างกายขณะยืนกลุ่มที่ฝึกโยคะร่วมกับการฝึกกระตุ้นระบบรับรู้การทรงตัวในหูชั้นใน (YOGA+VSE) มีค่าความเร็วที่ใช้ในการเคลื่อนที่ของจุดศูนย์กลางแรงดันร่างกายลดลงอย่างมีนัยสำคัญทางสถิติเมื่อเปรียบเทียบกับกลุ่มที่ฝึกโยคะเพียงอย่างเดียว (YOGA) และภายหลังการฝึกออกกำลังกาย 8 สัปดาห์ พบว่าการควบคุมจุดศูนย์กลางแรงโน้มถ่วงร่างกายขณะเดิน 1 gait cycle และขณะเดินในช่วง single limb stance phase ของทั้งสองกลุ่มมีค่าระยะทางการเคลื่อนที่ของจุดศูนย์กลางแรงโน้มถ่วงร่างกายลดลงอย่างมีนัยสำคัญทางสถิติ และผลจากการฝึกออกกำลังกายทั้งสองรูปแบบช่วยเพิ่มความสามารถในการทรงตัวขณะทำกิจกรรมเคลื่อนไหวร่างกายได้จากค่าคะแนน Berg Balance Score ที่เพิ่มขึ้น และระยะเวลาการทดสอบ Time Up and Go ที่ลดลง สรุปผลการวิจัย กลุ่มที่ฝึกโยคะร่วมกับการฝึกกระตุ้นระบบรับรู้การทรงตัวในหูชั้นในมีค่าความเร็วที่ใช้ในการเคลื่อนที่ของจุดศูนย์กลางแรงดันร่างกายขณะยืนลืมตาบนพื้นเรียบดีกว่ากลุ่มที่ฝึกโยคะเพียงอย่างเดียว อย่างไรก็ตาม การฝึกออกกำลังกายทั้งสองรูปแบบให้ผลไม่แตกต่างกันในการฝึกเพื่อเพิ่มความมั่นคงของร่างกายจากการควบคุมการทรงตัวขณะยืนและขณะเคลื่อนไหวร่างกาย ช่วยส่งเสริมความสามารถในการทรงตัวขณะทำกิจกรรมต่างๆ อีกทั้งยังช่วยลดปัญหาและป้องกันความเสี่ยงจากการหกล้มในผู้สูงอายุเพศหญิงได้

Methodologies To Unlock The Molecular Expression And Cellular Structure Of Ocular Lens Epithelial Cells, Justin Parreno, Grace Emin, Michael P Vu, Jackson T Clark, Sandeep Aryal, Shaili D Patel, Catherine Cheng

Faculty, Staff and Student Publications

The transparent ocular lens in the anterior chamber of the eye is responsible for fine focusing of light onto the retina. The lens is entirely cellular with bulk of the tissue composed of fiber cells, and the anterior hemisphere of the lens is covered by a monolayer of epithelial cells. Lens epithelial cells are important for maintaining fiber cell homeostasis and for continual growth of the lens tissue throughout life. Cataracts, defined as any opacity in the lens, remain the leading cause of blindness in the world. Following cataract surgery, lens epithelial cells can undergo a process of epithelial-to-mesenchymal transition …

Ahcc® Supplementation To Support Immune Function To Clear Persistent Human Papillomavirus Infections, Judith A Smith, Anjali A Gaikwad, Lata Mathew, Barbara Rech, Jonathan P Faro, Joseph A Lucci, Yu Bai, Randall J Olsen, Teresa T Byrd

Faculty, Staff and Student Publications

OBJECTIVE: To determine the efficacy, safety, and durability of the use of AHCC supplementation for 6 months to support the host immune system to clear high-risk human papillomavirus (HPV) infections. The AHCC supplement is a proprietary, standardized extract of cultured lentinula edodes mycelia (AHCC

STUDY DESIGN: This was a randomized, double-blind, placebo-controlled study (CTN: NCT02405533) in 50 women over 30 years of age with confirmed persistent high-risk HPV infections for greater than 2 years. Patients were randomized to placebo once daily for 12 months (N = 25) or AHCC 3-g supplementation by mouth once daily on empty stomach for 6 …

Expanding Mouse-Adapted Yamagata-Like Influenza B Viruses In Eggs Enhances In Vivo Lethality In Balb/C Mice, Matthew J. Pekarek, Erika M. Petro-Turnquist, Adam Rubrum, Richard J. Webby, Eric A. Weaver

Nebraska Center for Virology: Faculty Publications

Despite the yearly global impact of influenza B viruses (IBVs), limited host range has been a hurdle to developing a readily accessible small animal disease model for vaccine studies. Mouseadapting IBV can produce highly pathogenic viruses through serial lung passaging in mice. Previous studies have highlighted amino acid changes throughout the viral genome correlating with increased pathogenicity, but no consensus mutations have been determined. We aimed to show that growth system can play a role in mouse-adapted IBV lethality. Two Yamagata-lineage IBVs were serially passaged 10 times in mouse lungs before expansion in embryonated eggs or Madin–Darby canine kidney cells …

การศึกษาเปรียบเทียบผลของการออกกำลังกายที่ความหนักระดับสูงสลับเบาและความหนักระดับปานกลางต่อการตอบสนองของระบบหายใจในผู้ที่มีภาวะอ้วน, อรนรี เชาว์นะรัง

Chulalongkorn University Theses and Dissertations (Chula ETD)

เพื่อศึกษาการตอบสนองของระบบหายใจต่อการออกกำลังกายที่ความหนักระดับสูงสลับเบา (HIIE) และความหนักระดับปานกลาง (MICE) ในผู้ที่มีภาวะอ้วน โดยอาสาสมัครจะได้รับการทดสอบออกกำลังกายทั้งสองรูปแบบข้างต้น คือปั่นจักรยานที่ความหนักสูง 90% peak power output (PPO) 1 นาทีสลับกับความหนักเบา 15% PPO 1 นาที เป็นระยะเวลา 20 นาที (HIIE) และปั่นจักรยานที่ความหนักปานกลาง 50% PPO เป็นระยะเวลา 20 นาที (MICE) วัดความแข็งแรงของกล้ามเนื้อหายใจก่อนและหลังออกกำลังกายและวัดการตอบสนองของระบบหายใจขณะออกกำลังกาย ผลการศึกษาในอาสาสมัคร 27 ราย พบว่าค่าความแข็งแรงกล้ามเนื้อหายใจเข้า (MIP) และออก (MEP) มีค่าลดลงหลังออกกำลังกาย (p < 0.05) แต่ไม่พบความแตกต่างระหว่างกลุ่ม ค่า VO2 ของ HIIE ช่วง high intensity มีค่ามากกว่า MICE (p<0.01) ค่า VCO2 ของ HIIE ตลอดการออกกำลังกาย 20 นาทีมีค่ามากกว่า MICE อย่างมีนัยสำคัญ (p<0.05) ค่า VE มีแนวโน้มสูงขึ้นขณะออกกำลังกายทั้งสองรูปแบบ โดยใน HIIE มีค่ามากกว่า MICE (p<0.001) และมีความแตกต่างกันหลังเสร็จสิ้นการ cool down (p<0.05) ไม่พบความแตกต่างกันของค่า IC ขณะพักและหลังเสร็จสิ้นการ cool down ในการออกกำลังกายทั้งสองรูปแบบ แต่เมื่อเทียบภายในกลุ่มพบว่าค่า IC หลังเสร็จสิ้นการ cool down มีค่าสูงกว่าค่าขณะพักอย่างมีนัยสำคัญ สรุปได้ว่าการออกกำลังกายทั้งสองแบบส่งผลต่อความแข็งแรงของกล้ามเนื้อหายใจ ทำให้ความแข็งแรงกล้ามเนื้อหายใจลดลงหลังออกกำลังกาย และการออกกำลังกายแบบ HIIE มี respiratory demand มากกว่าการออกกำลังกายแบบ MICE

Brain Antigens Stimulate Proliferation Of T Lymphocytes With A Pathogenic Phenotype In Multiple Sclerosis Patients, Assaf Gottlieb, Hoai Phuong T Pham, John William Lindsey

Faculty, Staff and Student Publications

A method to stimulate T lymphocytes with a broad range of brain antigens would facilitate identification of the autoantigens for multiple sclerosis and enable definition of the pathogenic mechanisms important for multiple sclerosis. In a previous work, we found that the obvious approach of culturing leukocytes with homogenized brain tissue does not work because the brain homogenate suppresses antigen-specific lymphocyte proliferation. We now report a method that substantially reduces the suppressive activity. We used this non-suppressive brain homogenate to stimulate leukocytes from multiple sclerosis patients and controls. We also stimulated with common viruses for comparison. We measured proliferation, selected the …

Apoe Genotype And Sex Modulate Ketogenic Diet Enhancements To Metabolism And Gut Microbiome In Young Mice, Andrew T. Yackzan

Theses and Dissertations--Medical Sciences

The apolipoprotein ε (APOE) allele in humans has been associated with risk for development of Alzheimer’s disease (AD). There are predominately three variations of the allele – ε2 (E2), ε3 (E3), and ε4 (E4) – with E4 contributing the greatest risk of AD development. Recent research has unveiled evidence of neurometabolic and neurovascular deficits in E4 carriers present decades before the onset of dementia; it is believed these chronic defects play a major role in the development of AD, thus making them a potential target for preventative intervention. The purpose of this study was to examine the effect of a …

Increasing Awareness Of Personal Harm Reduction Interventions In The Clinical Setting: A Quality Improvement Project, Shawn Theberge

DNP Scholarly Projects

Abstract

The ever-rising concern for safety in the healthcare setting has become increasingly prevalent and levels of hostility and violence more publicly visible. Over the last decade both patients and clinicians have been targeted in healthcare facilities at record levels. These incidents have created an environment of not only risk but increased anxiety and feelings of uncertainty for most clinical personnel. The study will initially measure clinician’s viewpoint of the clinical setting that they work in; and over the span of the project, track and evaluate the effects of the interventions on clinicians’ overall feelings and perceptions. The expected outcome …