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Articles 1 - 30 of 169

Full-Text Articles in Medicine and Health Sciences

Single-Cell T-Cell Receptor Repertoire Profiling In Dogs, My H Hoang, Zachary L Skidmore, Hans Rindt, Shirley Chu, Bryan Fisk, Jennifer A Foltz, Catrina Fronick, Robert Fulton, Mingyi Zhou, Nathan J Bivens, Carol N Reinero, Todd A Fehniger, Malachi Griffith, Jeffrey N Bryan, Obi L Griffith Apr 2024

Single-Cell T-Cell Receptor Repertoire Profiling In Dogs, My H Hoang, Zachary L Skidmore, Hans Rindt, Shirley Chu, Bryan Fisk, Jennifer A Foltz, Catrina Fronick, Robert Fulton, Mingyi Zhou, Nathan J Bivens, Carol N Reinero, Todd A Fehniger, Malachi Griffith, Jeffrey N Bryan, Obi L Griffith

2020-Current year OA Pubs

Spontaneous cancers in companion dogs are robust models of human disease. Tracking tumor-specific immune responses in these models requires reagents to perform species-specific single cell T cell receptor sequencing (scTCRseq). scTCRseq and integration with scRNA data have not been demonstrated on companion dogs with cancer. Here, five healthy dogs, two dogs with T cell lymphoma and four dogs with melanoma are selected to demonstrate applicability of scTCRseq in a cancer immunotherapy setting. Single-cell suspensions of PBMCs or lymph node aspirates are profiled using scRNA and dog-specific scTCRseq primers. In total, 77,809 V(D)J-expressing cells are detected, with an average of 3498 …


Altered Larval Activation Response Associated With Multidrug Resistance In The Canine Hookworm Ancylostoma Caninum, Elise L Mckean, Emilia Grill, Young-Jun Choi, Makedonka Mitreva, Damien M O'Halloran, John M Hawdon Mar 2024

Altered Larval Activation Response Associated With Multidrug Resistance In The Canine Hookworm Ancylostoma Caninum, Elise L Mckean, Emilia Grill, Young-Jun Choi, Makedonka Mitreva, Damien M O'Halloran, John M Hawdon

2020-Current year OA Pubs

Parasitic gastrointestinal nematodes pose significant health risks to humans, livestock, and companion animals, and their control relies heavily on the use of anthelmintic drugs. Overuse of these drugs has led to the emergence of resistant nematode populations. Herein, a naturally occurring isolate (referred to as BCR) of the dog hookworm,


Effect Of Flecainide And Ibutilide Alone And In Combination To Terminate And Prevent Recurrence Of Atrial Fibrillation, Alexander Burashnikov, José M. Di Diego, Bence Patocskai, Debra S. Echt, Luiz Belardinelli, Charles Antzelevitch Dec 2023

Effect Of Flecainide And Ibutilide Alone And In Combination To Terminate And Prevent Recurrence Of Atrial Fibrillation, Alexander Burashnikov, José M. Di Diego, Bence Patocskai, Debra S. Echt, Luiz Belardinelli, Charles Antzelevitch

Division of Cardiology Faculty Papers

BACKGROUND: There is a need for improved approaches to rhythm control therapy of atrial fibrillation (AF).

METHODS: The effectiveness of flecainide (1.5 µmol/L) and ibutilide (20 nmol/L), alone and in combination, to cardiovert and prevent AF recurrence was studied in canine-isolated coronary-perfused right atrioventricular preparations. We also examined the safety of the combination of flecainide (1.5 µmol/L) and ibutilide (50 nmol/L) using canine left ventricular wedge preparations.

RESULTS: Sustained AF (>1 hour) was inducible in 100%, 60%, 20%, and 0% of atria in the presence of acetylcholine alone, acetylcholine+ibutilide, acetylcholine+flecainide, and acetylcholine+ibutilide+flecainide, respectively. When used alone, flecainide and ibutilide …


Diagnostic And Commensal Staphylococcus Pseudintermedius Genomes Reveal Niche Adaptation Through Parallel Selection Of Defense Mechanisms, Sanjam S Sawhney, Rhiannon C Vargas, Meghan A Wallace, Carol E Muenks, Brian V Lubbers, Stephanie A Fritz, Carey-Ann D Burnham, Gautam Dantas Nov 2023

Diagnostic And Commensal Staphylococcus Pseudintermedius Genomes Reveal Niche Adaptation Through Parallel Selection Of Defense Mechanisms, Sanjam S Sawhney, Rhiannon C Vargas, Meghan A Wallace, Carol E Muenks, Brian V Lubbers, Stephanie A Fritz, Carey-Ann D Burnham, Gautam Dantas

2020-Current year OA Pubs

Staphylococcus pseudintermedius is historically understood as a prevalent commensal and pathogen of dogs, though modern clinical diagnostics reveal an expanded host-range that includes humans. It remains unclear whether differentiation across S. pseudintermedius populations is driven primarily by niche-type or host-species. We sequenced 501 diagnostic and commensal isolates from a hospital, veterinary diagnostic laboratory, and within households in the American Midwest, and performed a comparative genomics investigation contrasting human diagnostic, animal diagnostic, human colonizing, pet colonizing, and household-surface S. pseudintermedius isolates. Though indistinguishable by core and accessory gene architecture, diagnostic isolates harbor more encoded and phenotypic resistance, whereas colonizing and surface …


Fluorescence-Guided Surgical System Using Holographic Display: From Phantom Studies To Canine Patients, Mebin B. George, Benjamin Lew, Zuodong Liang, Steven Blair, Zhongmin Zhu, Nan Cui, Jamie Ludwig, Mohamed Zayed, Laura Selmic, Viktor Gruev Sep 2023

Fluorescence-Guided Surgical System Using Holographic Display: From Phantom Studies To Canine Patients, Mebin B. George, Benjamin Lew, Zuodong Liang, Steven Blair, Zhongmin Zhu, Nan Cui, Jamie Ludwig, Mohamed Zayed, Laura Selmic, Viktor Gruev

2020-Current year OA Pubs

SIGNIFICANCE: Holographic display technology is a promising area of research that can lead to significant advancements in cancer surgery. We present the benefits of combining bioinspired multispectral imaging technology with holographic goggles for fluorescence-guided cancer surgery. Through a series of experiments with 43D-printed phantoms, small animal models of cancer, and surgeries on canine patients with head and neck cancer, we showcase the advantages of this holistic approach.

AIM: The aim of our study is to demonstrate the feasibility and potential benefits of utilizing holographic display for fluorescence-guided surgery through a series of experiments involving 3D-printed phantoms and canine patients with …


Nerve Transfer For Restoration Of Lower Motor Neuron-Lesioned Bladder, Urethral, And Anal Sphincter Function In A Dog Model. Part 3. Nicotinic Receptor Characterization, Nagat Frara, Mary F. Barbe, Dania Giaddui, Danielle S. Porreca, Alan S. Braverman, Ekta Tiwari, Attia Ahmad, Justin M. Brown, Benjamin R. Johnston, Stanley F. Bazarek, Michael R. Ruggieri Jul 2023

Nerve Transfer For Restoration Of Lower Motor Neuron-Lesioned Bladder, Urethral, And Anal Sphincter Function In A Dog Model. Part 3. Nicotinic Receptor Characterization, Nagat Frara, Mary F. Barbe, Dania Giaddui, Danielle S. Porreca, Alan S. Braverman, Ekta Tiwari, Attia Ahmad, Justin M. Brown, Benjamin R. Johnston, Stanley F. Bazarek, Michael R. Ruggieri

Department of Neurology Faculty Papers

Very little is known about the physiological role of nicotinic receptors in canine bladders, although functional nicotinic receptors have been reported in bladders of many species. Utilizing in vitro methods, we evaluated nicotinic receptors mediating bladder function in dogs: control (9 female and 11 male normal controls, 5 sham operated), Decentralized (9 females, decentralized 6–21 mo), and obturator-to-pelvic nerve transfer reinnervated (ObNT-Reinn; 9 females; decentralized 9–13 mo, then reinnervated with 8–12 mo recovery). Muscle strips were collected, mucosa-denuded, and mounted in muscle baths before incubation with neurotransmitter antagonists, and contractions to the nicotinic receptor agonist epibatidine were determined. Strip response …


Neuraminidase Activity Modulates Cellular Coinfection During Influenza A Virus Multicycle Growth, Zijian Guo, Yuanyuan He, Jian Xu, Ananya N. Benegal, Steven L. Brody, Michael D. Vahey Jun 2023

Neuraminidase Activity Modulates Cellular Coinfection During Influenza A Virus Multicycle Growth, Zijian Guo, Yuanyuan He, Jian Xu, Ananya N. Benegal, Steven L. Brody, Michael D. Vahey

2020-Current year OA Pubs

Infection of individual cells by multiple virions plays critical roles in the replication and spread of many viruses, but mechanisms that control cellular coinfection during multicycle viral growth remain unclear. Here, we investigate virus-intrinsic factors that control cellular coinfection by influenza A virus (IAV). Using quantitative fluorescence to track the spread of virions from single infected cells, we identify the IAV surface protein neuraminidase (NA) as a key determinant of cellular coinfection. We map this effect to NA's ability to deplete viral receptors from both infected and neighboring uninfected cells. In cases in which viral infectious potential is low, genetic …


Dog Guardians’ Subjective Well-Being During Times Of Stress And Crisis: A Diary Study Of Affect During Covid-19, Lori S. Hoy, Brigitte Stangl, Nigel Morgan Jun 2023

Dog Guardians’ Subjective Well-Being During Times Of Stress And Crisis: A Diary Study Of Affect During Covid-19, Lori S. Hoy, Brigitte Stangl, Nigel Morgan

People and Animals: The International Journal of Research and Practice

The impacts of companion animals on human well-being have been receiving increased media and research attention, especially in relation to the COVID-19 pandemic. Previously, there have been calls for research to consider the major components of subjective well-being separately and for research designs to include assessments over time. In line with this suggestion, the purpose of this study was to gain a more comprehensive understanding of how being a dog guardian can impact affect and contribute to the overall assessment of subjective well-being. This study used a seven-day diary design to capture 31 dog guardians’ day-to- day feelings and thoughts …


Modulating Fast Skeletal Muscle Contraction Protects Skeletal Muscle In Animal Models Of Duchenne Muscular Dystrophy, Alan J. Russell, Twlya I. Juehne, Jinsheng Yu, Et Al. May 2023

Modulating Fast Skeletal Muscle Contraction Protects Skeletal Muscle In Animal Models Of Duchenne Muscular Dystrophy, Alan J. Russell, Twlya I. Juehne, Jinsheng Yu, Et Al.

2020-Current year OA Pubs

Duchenne muscular dystrophy (DMD) is a lethal muscle disease caused by absence of the protein dystrophin, which acts as a structural link between the basal lamina and contractile machinery to stabilize muscle membranes in response to mechanical stress. In DMD, mechanical stress leads to exaggerated membrane injury and fiber breakdown, with fast fibers being the most susceptible to damage. A major contributor to this injury is muscle contraction, controlled by the motor protein myosin. However, how muscle contraction and fast muscle fiber damage contribute to the pathophysiology of DMD has not been well characterized. We explored the role of fast …


Mechanisms Underlying The Antiarrhythmic Effect Of Arumenamide-787 In Experimental Models Of The J Wave Syndromes And Hypothermia, José M. Di Diego, Hector Barajas-Martinez, Robert Cox, Victoria M Robinson, Joseph Jung, Mohamed Fouda, Mena Abdelsayed, Peter C Ruben, Charles Antzelevitch May 2023

Mechanisms Underlying The Antiarrhythmic Effect Of Arumenamide-787 In Experimental Models Of The J Wave Syndromes And Hypothermia, José M. Di Diego, Hector Barajas-Martinez, Robert Cox, Victoria M Robinson, Joseph Jung, Mohamed Fouda, Mena Abdelsayed, Peter C Ruben, Charles Antzelevitch

Department of Medicine Faculty Papers

BACKGROUND: Brugada (BrS) and early repolarization syndromes (ERS), the so-called J wave syndromes (JWS), are associated with life-threatening ventricular arrhythmias. Pharmacologic approaches to therapy are currently limited. In this study, we examine the effects of ARumenamide-787 (AR-787) to suppress the electrocardiographic and arrhythmic manifestations of JWS and hypothermia.

METHODS: We studied the effects of AR-787 on INa and IKr in HEK-293 cells stably expressing the α- and β1-subunits of the cardiac (NaV1.5) sodium channel and hERG channel, respectively. In addition, we studied its effect on Ito, INa and ICa in dissociated canine ventricular myocytes along with action potentials and ECG …


Heartworm Adulticide Treatment: A Tropical Perspective, Filipe Dantas-Torres, Jennifer Ketzis, Gabriela Pérez Tort, Andrei Daniel Mihalca, Gad Baneth, Domenico Otranto, Malaika Watanabe, Bui Khanh Linh, Tawin Inpankaew, Pablo Borrás, Sangaran Arumugam, Barend Louis Penzhorn, Adrian Patalinghug Ybañez, Peter Irwin, Rebecca J Traub Apr 2023

Heartworm Adulticide Treatment: A Tropical Perspective, Filipe Dantas-Torres, Jennifer Ketzis, Gabriela Pérez Tort, Andrei Daniel Mihalca, Gad Baneth, Domenico Otranto, Malaika Watanabe, Bui Khanh Linh, Tawin Inpankaew, Pablo Borrás, Sangaran Arumugam, Barend Louis Penzhorn, Adrian Patalinghug Ybañez, Peter Irwin, Rebecca J Traub

Journal Articles

Dirofilaria immitis (the canine heartworm) is widespread in the tropics, with prevalence surpassing 30% in high-risk areas. In addition to the suitable climatic conditions that favour mosquito abundance and filarial larva development, there is low compliance with the recommended year-round use of preventives in these transmission hotspots. This represents a major concern, considering that melarsomine (first-line heartworm adulticide) is unavailable in several tropical countries, resulting in the so-called slow-kill protocol being the only available adulticide treatment option. In this article, the members of TroCCAP (Tropical Council for Companion Animal Parasites) review the current distribution of heartworm in the tropics and …


A Rodent Model For Dirofilaria Immitis, Canine Heartworm: Parasite Growth, Development, And Drug Sensitivity In Nsg Mice, Jessica A. Hess, Mark L. Eberhard, Marcelo Segura-Lepe, Kathrin Grundner-Culemann, Barbara Kracher, Jeffrey Shryock, John Harrington, David Abraham Jan 2023

A Rodent Model For Dirofilaria Immitis, Canine Heartworm: Parasite Growth, Development, And Drug Sensitivity In Nsg Mice, Jessica A. Hess, Mark L. Eberhard, Marcelo Segura-Lepe, Kathrin Grundner-Culemann, Barbara Kracher, Jeffrey Shryock, John Harrington, David Abraham

Department of Microbiology and Immunology Faculty Papers

Heartworm disease, caused by Dirofilaria immitis, remains a significant threat to canines and felines. The development of parasites resistant to macrocyclic lactones (ML) has created a significant challenge to the control of the infection. The goal of this study was to determine if mice lacking a functional immune response would be susceptible to D. immitis. Immunodeficient NSG mice were susceptible to the infection, sustaining parasites for at least 15 weeks, with infective third-stage larvae molting and developing into the late fourth-stage larvae. Proteomic analysis of host responses to the infection revealed a complex pattern of changes after infection, with at …


Mites [Of Dogs And Cats], Susan E. Little, Roberto Cortinas Jan 2023

Mites [Of Dogs And Cats], Susan E. Little, Roberto Cortinas

School of Veterinary and Biomedical Sciences: Faculty Publications

Veterinary parasitology: 20,000-word article details recognition and treatments for mite infestations of dogs and cats. Mite species reviewed include:

Cheyletiella spp. (“Walking Dandruff”)

Demodex spp. (Hair Follicle Mites, Red Mange, Demodicosis, Demodectic Mange)

Sarcoptes scabiei (Itch Mite, Scabies, Sarcoptic Mange)

Notoedres cati (Feline Head and Neck Mange)

Otodectes cynotis (Ear Mites)

Pneumonyssoides caninum (Nasal Mite)

Lynxacarus radovskyi (Fur Mite, Hair Clasping Mite)

Trombiculid Mites (Chiggers, Red Bugs, Berry Bugs, Harvest Mites, Scrub Itch or Grass Itch Mites)

Discussions include Etiology and epidemiology, Pathogenesis, Clinical features, Diagnosis, Treatment and prognosis, Immunity, Prevention, and Public health aspects.

Complete with 209 references.


Manydogs Project: A Big Team Science Approach To Investigating Canine Behavior And Cognition, Daniela Alberghina, Emily E. Bray, Daphna Buchsbaum, Sarah- Elizabeth Byosiere, Julia Espinosa, Gitanjali E. Gnanadesikan, C.-N. Alexandrina Guran, Elizabeth Hare, Daniel J. Horschler, Ludwig Huber, Valerie A. Kuhlmeier, Evan L. Maclean, Madeline H. Pelgrim, Bryan Perez, Dana Ravid-Schurr, Liza Rothkoff, Courtney L. Sexton, Zachary A. Silver, Jeffrey R. Stevens Jan 2023

Manydogs Project: A Big Team Science Approach To Investigating Canine Behavior And Cognition, Daniela Alberghina, Emily E. Bray, Daphna Buchsbaum, Sarah- Elizabeth Byosiere, Julia Espinosa, Gitanjali E. Gnanadesikan, C.-N. Alexandrina Guran, Elizabeth Hare, Daniel J. Horschler, Ludwig Huber, Valerie A. Kuhlmeier, Evan L. Maclean, Madeline H. Pelgrim, Bryan Perez, Dana Ravid-Schurr, Liza Rothkoff, Courtney L. Sexton, Zachary A. Silver, Jeffrey R. Stevens

Center for Brain, Biology, and Behavior: Faculty and Staff Publications

Dogs have a special place in human history as the first domesticated species and play important roles in many cultures around the world. However, their role in scientific studies has been relatively recent. With a few notable exceptions (e.g., Darwin, Pavlov, Scott, and Fuller), domestic dogs were not commonly the subject of rigorous scientific investigation of behavior until the late 1990s. Although the number of canine science studies has increased dramatically over the last 20 years, most research groups are limited in the inferences they can draw because of the relatively small sample sizes used, along with the exceptional diversity …


Social Attention During Object Engagement: Toward A Cross-Species Measure Of Preferential Social Orienting, Claire Weichselbaum, Nicole Hendrix, Jordan Albright, Joseph D Dougherty, Kelly N Botteron, John N Constantino, Natasha Marrus Dec 2022

Social Attention During Object Engagement: Toward A Cross-Species Measure Of Preferential Social Orienting, Claire Weichselbaum, Nicole Hendrix, Jordan Albright, Joseph D Dougherty, Kelly N Botteron, John N Constantino, Natasha Marrus

2020-Current year OA Pubs

BACKGROUND: A central challenge in preclinical research investigating the biology of autism spectrum disorder (ASD) is the translation of ASD-related social phenotypes across humans and animal models. Social orienting, an observable, evolutionarily conserved behavior, represents a promising cross-species ASD phenotype given that disrupted social orienting is an early-emerging ASD feature with evidence for predicting familial recurrence. Here, we adapt a competing-stimulus social orienting task from domesticated dogs to naturalistic play behavior in human toddlers and test whether this approach indexes decreased social orienting in ASD.

METHODS: Play behavior was coded from the Autism Diagnostic Observation Schedule (ADOS) in two samples …


Management Of Mammalian Bites To The External Genitalia: A Scoping Review., Sagar R Patel, Pratik Kanabur, Harlee E Possoit, Austin Kinley, Beatriz Varman, Michael Coburn, Shyam Sukumar Dec 2022

Management Of Mammalian Bites To The External Genitalia: A Scoping Review., Sagar R Patel, Pratik Kanabur, Harlee E Possoit, Austin Kinley, Beatriz Varman, Michael Coburn, Shyam Sukumar

Library Staff Publications

OBJECTIVE: To review existing publications to determine the approaches for the medical and operative management of mammalian bites to the external genitalia.

MATERIALS AND METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-Analysis for Scoping Review guidelines were followed. Four databases were searched. Articles were independently screened and analysed by two reviewers. Publications were included if detailed summaries of genitalia bites and management were documented. Discrepancies were resolved by a third reviewer. Data were extracted from the final article cohort.

RESULTS: A total of 42 articles were included in this scoping review with 67 cases of mammalian bites to …


A Standardized Nomenclature For Mammalian Histone Genes., Ruth L Seal, Paul Denny, Elspeth A Bruford, Anna K Gribkova, David Landsman, William F Marzluff, Monica Mcandrews, Anna R Panchenko, Alexey K Shaytan, Paul B Talbert Oct 2022

A Standardized Nomenclature For Mammalian Histone Genes., Ruth L Seal, Paul Denny, Elspeth A Bruford, Anna K Gribkova, David Landsman, William F Marzluff, Monica Mcandrews, Anna R Panchenko, Alexey K Shaytan, Paul B Talbert

Faculty Research 2022

Histones have a long history of research in a wide range of species, leaving a legacy of complex nomenclature in the literature. Community-led discussions at the EMBO Workshop on Histone Variants in 2011 resulted in agreement amongst experts on a revised systematic protein nomenclature for histones, which is based on a combination of phylogenetic classification and historical symbol usage. Human and mouse histone gene symbols previously followed a genome-centric system that was not applicable across all vertebrate species and did not reflect the systematic histone protein nomenclature. This prompted a collaboration between histone experts, the Human Genome Organization (HUGO) Gene …


The Ethical Perceptions Of Dog Tail Docking Amongst Owners And Veterinarians In South Carolina, Hannah Ellen Steinberg Oct 2022

The Ethical Perceptions Of Dog Tail Docking Amongst Owners And Veterinarians In South Carolina, Hannah Ellen Steinberg

Senior Theses

This thesis aimed to discover, in depth, what tail docking of dogs is, why it is currently in practice, what the controversial opinions surrounding it are, how the opinions differ when taking into account the professionals of the field versus owners and breeders, and how it can be addressed in the future to treat our animals as humanely as possible.

Based on the surveying of South Carolinian owners, breeders, and veterinarians, it was discovered that dog tail-docking procedures are overwhelmingly used for cosmetic or aesthetic purposes, with the aim being to match breed standards. There was a disagreement amongst those …


Genome Scanning Of Behavioral Selection In A Canine Olfactory Detection Breeding Cohort, Alexander W Eyre, Isain Zapata, Elizabeth Hare, Katharine M N Lee, Claire Bellis, Jennifer L Essler, Cynthia M Otto, James A Serpell, Carlos E Alvarez Sep 2022

Genome Scanning Of Behavioral Selection In A Canine Olfactory Detection Breeding Cohort, Alexander W Eyre, Isain Zapata, Elizabeth Hare, Katharine M N Lee, Claire Bellis, Jennifer L Essler, Cynthia M Otto, James A Serpell, Carlos E Alvarez

2020-Current year OA Pubs

Research on working dogs is growing rapidly due to increasing global demand. Here we report genome scanning of the risk of puppies being eliminated for behavioral reasons prior to entering the training phase of the US Transportation Security Administration's (TSA) canine olfactory detection breeding and training program through 2013. Elimination of dogs for behavioral rather than medical reasons was based on evaluations at three, six, nine and twelve months after birth. Throughout that period, the fostered dogs underwent standardized behavioral tests at TSA facilities, and, for a subset of tests, dogs were tested in four different environments. Using methods developed …


Using A One Health Approach For The Assessment Of Rabies Control In Rural Victoria Falls, Zimbabwe, Ryan Lapenna Aug 2022

Using A One Health Approach For The Assessment Of Rabies Control In Rural Victoria Falls, Zimbabwe, Ryan Lapenna

Electronic Thesis and Dissertation Repository

Rabies, a viral zoonotic disease, is widespread in Zimbabwe, with human fatalities reported annually in the country. To supplement the Government’s effort on rabies control, the Victoria Falls Wildlife Trust and Veterinarians for Animal Welfare Zimbabwe have joined forces to carry out dog rabies vaccinations in rural communities adjacent to the major tourist attraction of The Victoria Falls. A One Health approach was used to 1) determine the level of protective rabies antibodies among a sample of rural dogs and 2) collect information and describe the knowledge, attitudes, and practices related to rabies among dog owners. In 2020, blood was …


Effect Of Calcium Chloride And Isoflurane On Force Frequency Relationship In Canines, Harrison Patrizio, Lawrence Mulligan May 2022

Effect Of Calcium Chloride And Isoflurane On Force Frequency Relationship In Canines, Harrison Patrizio, Lawrence Mulligan

Rowan-Virtua Research Day

Proper calcium cycling is critical for a optimally functioning heart.

Improper calcium cycling in humans can contribute to heart failure.

Human calcium cycling is difficult to study due to the risks of damaging the patient’s cardiac tissue.

Risk of further damaging cardiac tissue is substantially increased in a heart failure patient.

Past studies focus on studying the effects of changing calcium cycling in lab rats.

Current research shows limited alternative methods in studying relationships between calcium cycling and FFR in larger mammals.

This project analyzes data to determine the response of the canine force frequency relationship to calcium chloride and …


Comparison Of An Intra-Articular Suture Technique And A Lateral Suture Technique In Toy Breed Dogs With Cranial Cruciate Ligament Rupture, Sirun Tuek-Um, Chaiyakorn Thitiyanaporn, Phitchaya Phongwirat, Naris Thengchaisri Mar 2022

Comparison Of An Intra-Articular Suture Technique And A Lateral Suture Technique In Toy Breed Dogs With Cranial Cruciate Ligament Rupture, Sirun Tuek-Um, Chaiyakorn Thitiyanaporn, Phitchaya Phongwirat, Naris Thengchaisri

The Thai Journal of Veterinary Medicine

Cranial cruciate ligament rupture (CCLR) can result in inflammation, pain, lameness and osteoarthritis. Because there is no isometric point for surgical stabilization for CCLR, the anatomical replacement of the ruptured cranial cruciate ligament with synthetic material may provide better outcomes. This retrospective study compared short-term post-operative outcomes between an intra-articular suture technique and a lateral suture technique for treating CCLR in toy breed dogs. Twenty dogs with unilateral CCLR were divided into two groups. The lateral suture technique was a lateral circumfabellar tibial suture with monofilament nylon and the intra-articular suture was performed by passing a suture through the femoral …


Clinical Characteristics, Antimicrobial Resistance And Treatment Outcomes Of Multidrug-Resistant Escherichia Coli Infection In Dogs And Cats At A Veterinary Teaching Hospital In Thailand, Jeerawat Soonthornsit, Sukanya Apiratwarrasakul, Nathita Phumthanakorn Mar 2022

Clinical Characteristics, Antimicrobial Resistance And Treatment Outcomes Of Multidrug-Resistant Escherichia Coli Infection In Dogs And Cats At A Veterinary Teaching Hospital In Thailand, Jeerawat Soonthornsit, Sukanya Apiratwarrasakul, Nathita Phumthanakorn

The Thai Journal of Veterinary Medicine

This retrospective study investigated the clinical characteristics of multidrug-resistant (MDR) Escherichia coli and its antimicrobial resistance phenotypes and analyzed the treatment outcomes of MDR E. coli infection in dogs and cats. The medical data of dogs and cats diagnosed in 2020 with E. coli infection at a veterinary teaching hospital were analyzed. Of 94 cases, the frequency of MDR E. coli (66%) infection was higher than that of non-MDR E. coli (34%). MDR E. coli was significantly more frequently detected in female dogs than non-MDR E. coli (P < 0.026). The most frequent MDR E. coli isolation sites were the urinary tract in dogs and skin wounds in cats. MDR E. coli isolates from dogs were highly resistant to ampicillin (96.1%), enrofloxacin (80.4%) and tetracycline (78.4%). Resistance to ampicillin (100%), enrofloxacin (90.9%), marbofloxacin (72.7%) and tetracycline (72.7%) occurred frequently in MDR E. coli isolates from cats. Low resistance to amikacin was detected in the MDR E. coli isolates from dogs and cats. The rates of clinical cure and non-clinical cure of the MDR E. coli and non-MDR E. coli cases were not significantly different. The duration of antimicrobial treatment for MDR E. coli was significantly longer in cats (12.6 ± 5.85 days) than in non-MDR E. coli cases (7 ± 0 days) (P < 0.048). Adjunctive therapy was prescribed more frequently in MDR E. coli (20%) than non-MDR E. coli cases (8.3%). The presence of MDR E. coli was high in this study. High resistance to commonly used antimicrobial drugs and treatment complications was observed in this study.


The Effects Of Biological And Health Characteristics Of Dogs On Intraindividual Variabilityof Blood Parameters, Sandra Nikolic, Branislava Belic, Marko Cincovic, Nikolina Novakov, Nada Plavsa, Sara Savic Jan 2022

The Effects Of Biological And Health Characteristics Of Dogs On Intraindividual Variabilityof Blood Parameters, Sandra Nikolic, Branislava Belic, Marko Cincovic, Nikolina Novakov, Nada Plavsa, Sara Savic

Turkish Journal of Veterinary & Animal Sciences

Considering the great diversity among dogs and their different biological and health characteristics, as well as different treatment protocols, it has become important to assess the effects of these factors on intraindividual variability of blood parameters in dogs, which is the aim of this study. Blood samples were collected from one hundred client-owned dogs. The dogs were of different age, breed, sex, body condition, reproductive, and health status and were presented to the veterinary clinic for preventive or diagnostic procedures. The effect of age on intraindividual variation was significant for various blood parameters and it was essential to establish new …


Pulmonary Capillary Recruitment And Distention In Mammalian Lungs: Species Similarities, David Langleben, Benjamin D. Fox, Stylianos E. Orfanos, Michele Giovinazzo, John D. Catravas Jan 2022

Pulmonary Capillary Recruitment And Distention In Mammalian Lungs: Species Similarities, David Langleben, Benjamin D. Fox, Stylianos E. Orfanos, Michele Giovinazzo, John D. Catravas

Bioelectrics Publications

Pulmonary arterial pressure rises minimally during exercise. The pulmonary microcirculation accommodates increasing blood flow via recruitment of pulmonary capillaries and, at higher flows, by distention of already perfused capillaries. The flow transition range between recruitment and distention has not been studied or compared across mammalian species, including humans. We hypothesised that the range would be similar. Functional pulmonary capillary surface area (FCSA) can be estimated using validated metabolic techniques. We reviewed data from previous studies in three mammalian species (perfused rabbit lungs and dog lung lobes, and exercising humans) and generated blood flow-FCSA curves over a range of flows. We …


The Alterations Of Fecal Microbiota In Dogs With Acute Diarrhea, Thailand, Jeerawat Soonthornsit, Natharin Ngamwongsatit, Panpanga Sangsuriya, Nlin Arya Dec 2021

The Alterations Of Fecal Microbiota In Dogs With Acute Diarrhea, Thailand, Jeerawat Soonthornsit, Natharin Ngamwongsatit, Panpanga Sangsuriya, Nlin Arya

The Thai Journal of Veterinary Medicine

Acute diarrhea is a common clinical sign in dogs which the pathogenesis has associated with altered gut microbiome compositions and influenced by diet, environment, and medication. However, the impact of gut microbiome on dog health has still not been well elucidated in Thailand. This study aims to investigate the alterations of the fecal microbiome in dogs with diarrhea (<3 days) compared to healthy dogs. Fresh feces were collected once from each dog, and DNA extraction was performed following the QIAamp DNA stool mini kit protocol. The 16s rRNA gene, then, amplified and analyzed by the next-generation DNA sequencing technology. The results showed a significant reduction of the evenness and Shannon index in dogs with the diarrhea group. The most dominant phylum in healthy dogs, Firmicutes, was markedly declined. Additionally, significant decreases in bacterial abundances were observed in twelve genera. To the best of our knowledge, seven of them were first described in their alterations including Clostridium sensu stricto 1, Lachnospiraceae NKA4136 group, Erysipelatoclostridium, Tyzzerella 3, Alloprevotella and Slackia. Therefore, these findings disclose the new possible biomarkers for intestinal diseases and the effect of ordinary diets on the fecal microbiome in dog health, Thailand.


Evaluation Of The Hematological And Serum Protein Profiles Of Blood Parasite Coinfection In Naturally Infected Dogs, Sariya Asawakarn, Sirakarnt Dhitavat, Piyanan Taweethavonsawat Dec 2021

Evaluation Of The Hematological And Serum Protein Profiles Of Blood Parasite Coinfection In Naturally Infected Dogs, Sariya Asawakarn, Sirakarnt Dhitavat, Piyanan Taweethavonsawat

The Thai Journal of Veterinary Medicine

Canine vector-borne diseases (CVBDs) are prevalent worldwide, including Thailand. Vectors can transmit more than one pathogen, and coinfections between blood parasites and/or filariae have been reported. Pathogenesis may affect the health status of infected dogs. Hematological, blood chemistry, and serum protein profile abnormalities can be used to screen for underlining causes of CVBDs. The aim of this study is to analyze the hematological and serum protein profiles as well as CRP in CVBD coinfection cases. In this study, 22 blood parasite coinfection cases are examined and classified into two groups: blood parasite coinfection (group 1: n = 16) and blood …


Retrospective Survey Of The Patterns Of Prescription And Request For Vitamins, Minerals And Vitamin-Mineral Formulations For Dogs In A Veterinary Hospital In Nigeria, Thelma Ebele Ihedioha, Isaac Uzoma Asuzu, John Anaelom Nwanta Sep 2021

Retrospective Survey Of The Patterns Of Prescription And Request For Vitamins, Minerals And Vitamin-Mineral Formulations For Dogs In A Veterinary Hospital In Nigeria, Thelma Ebele Ihedioha, Isaac Uzoma Asuzu, John Anaelom Nwanta

The Thai Journal of Veterinary Medicine

This study evaluated the patterns of prescription/request of vitamins, minerals and vitamin-mineral formulations (V-MF) for dogs presented for veterinary care at the Veterinary Teaching Hospital Nsukka (VTHN), Nigeria, between January 2013 and December 2017. Hospital records of a total of 4074 dogs were used for the study. Overall, vitamins, minerals and V-MF were prescribed/requested for 3096 out of the 4074 cases (75.33%). The frequency of prescription/requests for vitamins, minerals and V-MF significantly (p =0.000) increased from 54.1% in 2013 to 87.8% (highest) recorded in 2016 and the effect size of the variations across time was very strong (ɸc=0.268). Vitamin B-Complex …


The Benefits Of Dogs For Children With Autism Spectrum Disorder, Emma Raugh May 2021

The Benefits Of Dogs For Children With Autism Spectrum Disorder, Emma Raugh

Senior Honors Theses

Autism Spectrum Disorder (ASD) is a condition that primarily affects neurological development, causing decreased social aptness, diminished executive function, and abnormal sensory processing, among many other characteristic symptoms. Additional problems that often accompany ASD include anxiety disorders, depression, and attention deficit hyperactivity disorder (ADHD). Canine assisted animal therapy is one non-pharmacologic therapy option that has been researched for children with ASD to improve their social, psychological, mental, and other difficulties. Studies thus far have shown positive results in children with ASD who have dogs as pets or access to therapy dogs, including improved social functioning, decreased anxiety, overall improved behavior, …


Prevalence Of Canine Vector-Borne Blood Parasites In The Plain Regions Of Cambodia, Koemseang Nhuong, Samut Sum, Piyanan Taweethavonsawat Mar 2021

Prevalence Of Canine Vector-Borne Blood Parasites In The Plain Regions Of Cambodia, Koemseang Nhuong, Samut Sum, Piyanan Taweethavonsawat

The Thai Journal of Veterinary Medicine

Canine vector-borne blood parasites (CVBP) cause various diseases in dogs. The aim of this study was to survey canine blood parasites in the plain regions of Cambodia. The study was conducted from November 2014 to September 2015. A total of 455 blood samples were collected from rural and urban areas in the plain regions of Cambodia. Six infected dogs were found (1.32%), with the following parasites: Dirofilaria immitis (2/6), Brugia pahangi (1/6), Babesia vogeli (1/6) and two co-infections of Ehrlichia canis with Anaplasma platys (1/6) and Babesia vogeli with Anaplasma platys (1/6). However, the rate of detection of blood parasitic …