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Dog-assisted interventions lead to lower stress levels in children

A new study published in PLOS ONE found that dog-assisted interventions can significantly reduce stress levels in elementary school children, both with and without special needs. The research used salivary cortisol levels to track the effects of dog interactions on stress levels, revealing a decrease in cortisol levels after dog sessions.

SourcePLOS·JournalPLOS ONE·TypeRandomized controlled/clinical trial·DateJun 15, 2022

Compared to COVID-19 PCR testing, dogs can detect infections with high sensitivity (97%), though lower specificity (91%) - even when patients are asymptomatic

A study published in PLOS ONE found that dogs can detect SARS-CoV-2 infections with high sensitivity (97%) and lower specificity (91%), even when patients are asymptomatic. The diagnostic accuracy of canine olfaction for non-invasive detection of COVID-19 was demonstrated in a clinical trial conducted in France and the UAE.

SourcePLOS·JournalPLOS ONE·DateJun 1, 2022

Using Artificial Intelligence to Predict Life-Threatening Bacterial Disease in Dogs

Veterinarians at UC Davis have developed an AI model that can predict Leptospirosis in dogs with high accuracy, outperforming traditional testing methods. The model uses machine-learning algorithms to analyze historical data and provide timely predictions, which can be an online resource for veterinarians.

SourceUniversity of California - Davis·JournalJournal of Veterinary Diagnostic Investigation·TypeComputational simulation/modeling·DateMay 23, 2022

Scent dogs detect coronavirus reliably from skin swabs

A recent study by the University of Helsinki found that scent detection dogs can accurately identify individuals with a coronavirus infection from skin swabs. The dogs' sensitivity and specificity were 92%, with only small differences in accuracy observed between individual dogs.

SourceUniversity of Helsinki·JournalBMJ Global Health·TypeRandomized controlled/clinical trial·DateMay 17, 2022

Quantifying cognitive decline in dogs could help humans with Alzheimer’s disease

Researchers have developed a multi-dimensional approach to quantify cognitive decline in aging dogs, which may also inform human Alzheimer's disease treatment. The method combines physical exams, lab tests, and cognitive assessments to provide a more complete picture of canine cognitive function.

SourceNorth Carolina State University·JournalJournal of Alzheimer’s Disease·TypeRandomized controlled/clinical trial·DateMay 9, 2022

Cortisol in shelter dog hair shows signs of stress

A study published in Scientific Reports found that shelter dog hair cortisol levels increased by one-third after six weeks in the shelter, indicating elevated stress. After adoption, cortisol levels decreased, returning to pre-shelter values. The results suggest that even well-managed shelters can cause stress in dogs.

SourceUtrecht University·JournalScientific Reports·TypeExperimental study·DateApr 21, 2022

Cannabis poisoning cases in pets have increased significantly

A survey of veterinarians in the US and Canada reveals a significant increase in cannabis poisoning cases among pets since Canada's 2018 legalization, with most cases treated successfully. The study highlights the importance of understanding the effects of cannabis on pets to inform veterinary efforts and policies.

SourcePLOS·JournalPLOS ONE·TypeSurvey·DateApr 20, 2022

Both antibiotic resistant bacteria and genes transmitted between healthy dogs and cats and their owners, finds study in UK and Portugal

Researchers found that healthy companion animals and their owners can transmit antibiotic-resistant bacteria and genes to each other, highlighting the importance of hygiene practices around pets. The study suggests that even low-level shedding of bacteria by healthy carriers can pose a risk to vulnerable individuals.

Correcting night blindness in dogs

Researchers have developed a gene therapy that restores night vision in dogs with congenital stationary night blindness (CSNB), a condition affecting the ON bipolar cells. The treatment enables dogs to navigate mazes in dim light and has a lasting therapeutic effect, paving the way for potential human treatments.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMar 22, 2022

Treating deadly mammary cancer with a novel plant virus-based immunotherapy

A new study reveals that intra-tumoral injections of a plant virus-based immunotherapy could lead to groundbreaking therapy for both canine and human inflammatory breast cancer patients. The treatment generated potent local and systemic anti-tumor immune responses, improving quality of life and survival in treated dogs.

SourceDartmouth Health·JournalJournal for ImmunoTherapy of Cancer·TypeExperimental study·DateMar 14, 2022

Core strength could help dogs avoid knee injuries

A study of over 1,200 agility dogs found that core strength exercises and balance activities can lower the risk of cranial cruciate ligament ruptures. Dogs that engage in high-level agility events and flyball are at higher risk, while those with certain breeds and age factors may also be more prone to injury.

SourceWashington State University·JournalBMC Veterinary Research·TypeSurvey·DateFeb 17, 2022

Decline of vultures and rise of dogs carries disease risks

A recent study published in the Journal of Wildlife Management found that vulture declines are linked to increased disease risks due to their absence. With no natural clean-up crew, diseases spread rapidly among scavenger communities, including feral dogs, which fill the ecological gap left by vultures.

SourceUniversity of Utah·JournalJournal of Wildlife Management·TypeObservational study·DateFeb 14, 2022

What is your dog’s lifespan? You might be surprised

The Dog Aging Project is a groundbreaking study that has enrolled over 32,000 dogs to understand the aging process. Researchers are using this dataset to identify biomarkers of canine aging and potential genetic factors contributing to exceptional longevity, which they hope will translate to human health.

SourcePrinceton University·JournalNature·TypeObservational study·DateFeb 2, 2022

Gene mutation that makes dogs small existed in ancient wolves

Researchers discovered a genetic mutation associated with small body size in dogs that also occurred in ancient wolves over 50,000 years ago. This finding presents a new evolutionary narrative and challenges the long-held theory that humans domesticated large wolves to create small companions.

SourceCell Press·JournalCurrent Biology·TypeObservational study·DateJan 27, 2022

Relationship between dog personality and hierarchy

Researchers found that dogs with more extroverted, conscientious, and open personalities tend to rank higher in the hierarchy, while friendlier dogs tend to rank lower. Older dogs also dominate in multi-dog households. The study used a large-scale online questionnaire to analyze the personality traits of over 1,000 dogs.

SourceEötvös Loránd University·JournalApplied Animal Behaviour Science·DateJan 27, 2022

Dog brains can distinguish between languages

A new study by researchers from Eötvös Loránd University found that dog brains can differentiate between two languages, with distinct activity patterns in primary and secondary auditory cortices. The study used brain imaging to compare dogs' responses to speech and non-speech stimuli in Spanish and Hungarian.

SourceEötvös Loránd University·JournalNeuroImage·DateJan 6, 2022

Most dog breeds highly inbred

A recent study published in Canine Medicine and Genetics reveals that most dog breeds are highly inbred, with an average inbreeding rate of 25% or sharing the same genetic material with a full sibling. This high level of inbreeding contributes to increased disease and healthcare costs throughout a breed's lifespan.

SourceUniversity of California - Davis·JournalCanine Medicine and Genetics·TypeData/statistical analysis·DateDec 2, 2021