Lifestyle
Dogs With Less Complex Facial Markings Found to Be More Expressive in their Communication with Humans
Newswise — WASHINGTON (August 7, 2023) – The domestication of canines and their co-evolution with humans has fostered an incredibly unique relationship with these animals. Over time, our four-legged friends have adapted well to understanding human modes of communication, both verbal and nonverbal. However, researchers at the George Washington University say humans could do more to better understand our furry companions, and a dogs’ facial markings may be one key to meeting them halfway.
In a new paper published in the journal Animals, researchers from the GW Primate Genomics Lab found that dogs with plainer faces—e.g. dogs whose faces are one, solid color or dogs without any facial markings—appear to make more facial movements, or expressions when interacting with their human companions than dogs with more complex facial markings—dogs with multi-colored or patterned faces. The study also found that people are fairly good at assessing their dogs’ levels of expressivity overall, but people with canine companions between the ages of about two to seven years old are more accurate at judging their level of expressivity if their dog has a plainer face.
The study involved over 100 dogs and their people. The researchers asked each study participant to record their dogs in four different conditions. The research team then utilized a standardized coding system called DogFACS to analyze each dog’s behavior and created a novel system to scale and evaluate facial markings and patterns on dogs’ faces. Study participants were also asked to complete a survey that included various demographics about the dogs and gauged how well the participant judged their dog’s expressions.
The researchers say these findings have real-world implications, not only for dog lovers, but for anyone interacting with, working alongside, or living in neighborhoods with canine companions.
“As dogs become more and more integrated into human society, it’s important that we understand how they communicate with us and how we can better communicate with them,” Courtney Sexton, the study’s lead author, says. “If we think about this in terms of welfare contexts, or dogs in shelters, or working dogs and service animals, or interactions with dogs in your neighborhood or people at a dog park, knowing what dogs are trying to tell us and what they might be thinking or feeling can really enhance both their experience and ours when we’re together.”
The study also found that senior dogs appear less expressive in their communication with their human companions, which Sexton suggests may be because older dogs have a longer, more well-established relationship with their human companion, so they don’t have to work as hard at being understood. The research team also found that working dogs or highly trained dogs were more expressive, where this sort of relationship demands fluent communication and people may be more adept at understanding their dogs’ expressions.
WATCH: In this video, Sexton discusses additional findings of interest that came out of their work and shares examples of how this research can improve canine-human communication and relationships.
Recordings of participating dogs in this research can be found on Instagram, @how_dogs_talk.
The paper, “What Is Written on a Dog’s Face? Evaluating the Impact of Facial Phenotypes on Communication between Humans and Canines,” was published in the journal Animals. Researchers from GW’s Center for the Advanced Study of Human Paleobiology and the Hecht Lab/Canine Brains Project at Harvard University as well as collaborators at Working Dogs for Conservation contributed to this study. Funding for research travel and research-related outreach came from Lewis N. Cotlow Field Research Fund and the Awesome Foundation, D.C. Chapter.
-GW-
Journal Link: Animals, July-2023
Source: George Washington University
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(Family Features) While most parents are good at keeping track of vaccines their kids need to stay healthy, many adults don’t realize there are immunizations important for keeping themselves heart-healthy, as well.
Adults, especially those with a history of heart disease or stroke, should take steps to stay up-to-date on preventive vaccines, particularly for the flu and COVID-19.
Influenza – While many experience just a few days of aches and chills, the flu can be deadly for some, including young children, the elderly and those with chronic conditions like heart disease, stroke and diabetes. There has also been research linking flu infection to cardiovascular disease (CVD). Getting a flu shot can not only prevent the flu, it may also reduce the risk of having a heart attack or stroke.
In fact, a study published in “Stroke” found that, among a group of people hospitalized for various reasons, those who experienced a flu-like illness within a month of their hospitalization were 38% more likely to have a stroke. Receiving the flu vaccine within a year prior to hospitalization lowered a person’s stroke risk to 11%.
“Getting an annual flu shot should be part of routine health care for all individuals, especially for people who are already living with chronic health conditions that put them at higher risk for heart attacks or strokes,” said Eduardo Sanchez, M.D., M.P.H., FAHA, American Heart Association chief medical officer for prevention. “The potentially serious complications of the flu are far greater for those with chronic diseases. This is true not just for older people but even those age 50 and younger who have a history of high blood pressure, heart disease or diabetes.”
COVID-19 – At the onset of the pandemic, the American Heart Association established the COVID-19 Cardiovascular Disease Registry, which found people with or at risk for CVD were more likely to become infected with and die from COVID-19. Additionally, the research found many people experience heart and vascular disease after getting COVID-19.
A study from the registry published in “Circulation: Arrhythmia and Electrophysiology” found new-onset atrial fibrillation in 1 in 20 patients hospitalized with COVID-19. Additionally, research also found people hospitalized with COVID-19 had a higher risk of stroke compared with people who had similar infectious conditions such as influenza or sepsis.
“We can’t stress enough the connections between COVID-19 and cardiovascular disease,” Sanchez said. “There is clear evidence that people who have heart and vascular disease and even those with CVD risk factors are more likely to get COVID and to have more severe complications from the virus.”
Other Immunizations – While flu and COVID-19 vaccines are of the utmost importance, there are a number of other immunizations that can help keep people heart-healthy.
- The pneumococcal vaccination protects against a common cause of severe pneumonia and is especially important for people 65 and older, and others with certain underlying medical conditions. This type of pneumonia can be deadly, especially for people already at high risk for health complications, including CVD. One shot is usually good for several years, although you may need a second one later depending on your age at your first shot.
- Shingles, a viral infection caused by the chickenpox virus, has been linked to an increased risk of stroke. More than 99% of people age 40 or older in the United States may carry the dormant chickenpox virus, also known as the varicella-zoster virus, and not even realize it.
Learn more about important immunizations and find other preventive health tips at heart.org.
Photo courtesy of Getty Images
SOURCE:
American Heart Association
Our Lifestyle section on STM Daily News is a hub of inspiration and practical information, offering a range of articles that touch on various aspects of daily life. From tips on family finances to guides for maintaining health and wellness, we strive to empower our readers with knowledge and resources to enhance their lifestyles. Whether you’re seeking outdoor activity ideas, fashion trends, or travel recommendations, our lifestyle section has got you covered. Visit us today at https://stmdailynews.com/category/lifestyle/ and embark on a journey of discovery and self-improvement.
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Lifestyle
Get chronic UTIs? Future treatments may add more bacteria to your bladder to beat back harmful microbes
Researchers developed a biomaterial releasing beneficial E. coli to combat urinary tract infections by outcompeting harmful bacteria, aiming to reduce antibiotic resistance and manage chronic UTIs effectively.
Sarguru Subash, Texas A&M University
Millions of people in the U.S. and around the world suffer from urinary tract infections every year. Some groups are especially prone to chronic UTIs, including women, older adults and some veterans.
These infections are typically treated with antibiotics, but overusing these drugs can make the microbes they target become resistant and reduce the medicines’ effectiveness.
To solve this problem of chronic UTIs and antibiotic resistance, we combined our expertise in microbiology and engineering to create a living material that houses a specific strain of beneficial E. coli. Our research shows that the “good” bacteria released from this biomaterial can compete with “bad” bacteria for nutrients and win, dramatically reducing the number of disease-causing microbes.
With further development, we believe this technique could help manage recurring UTIs that do not respond to antibiotics.
Bringing bacteria to the bladder
For the microbes living in people, nutrients are limited their presence varies between different parts of the body. Bacteria have to compete with other microbes and the host to acquire essential nutrients. By taking up available nutrients, beneficial bacteria can stop or slow the growth of harmful bacteria. When harmful bacteria are starved of important nutrients, they aren’t able to reach high enough numbers to cause disease.
Delivering beneficial bacteria to the bladder to prevent UTIs in challenging, though. For one, these helpful bacteria can naturally colonize only in people who are unable to fully empty their bladder, a condition called urinary retention. Even among these patients, how long these bacteria can colonize their bladders varies widely.
Current methods to deliver bacteria to the bladder are invasive and require repeated catheter insertion. Even when bacteria are successfully released into the bladder, urine will flush out these microbes because they cannot stick to the bladder wall.
Biomaterials to treat UTIs
Since beneficial bacteria cannot attach to and survive in the bladder for long, we developed a biomaterial that could slowly release bacteria in the bladder over time.
Our biomaterial is composed of living E. coli embedded in a matrix structure made of gel. It resembles a piece of jelly about 500 times smaller than a drop of water and can release bacteria for up to two weeks in the bladder. By delivering the bacteria via biomaterial, we overcome the need for the bacteria to attach to the bladder to persist in the organ.
We tested our biomaterial by placing it in human urine in petri dishes and exposing it to bacterial pathogens that cause UTIs. Our results showed that when mixed in a 50:50 ratio, the E. coli outcompeted the UTI-causing bacteria by increasing to around 85% of the total population. When we added more E. coli than UTI-causing bacteria, which is what we envision for future development and testing, the proportion of E. coli increased to over 99% of the population, essentially wiping out the UTI-causing bacteria. Moreoever, the biomaterial continued releasing E. coli for up to two weeks in human urine.
Our findings suggest that E.coli could stick around and survive in the bladder for extended periods of time and successfully decrease the growth of many types of bacteria that cause UTIs.
Improving biomaterials
Our findings show that E. coli can not only control harmful bacteria it’s closely related to but also a broad range of disease-causing bacteria in humans and animals. This means scientists might not need to identify different types of beneficial bacteria to control each pathogen – and there are many – that can cause a UTI.
Our team is currently evaluating how effectively our biomaterial can cure UTIs in mice. We are also working to identify the specific nutrients that beneficial and harmful bacteria compete over and what factors may help beneficial bacteria win. We could add these nutrients to our biomaterial to be released or withheld.
This research is still at an early stage, and clinical uses are not in development yet, so if it does reach patients it will be well in the future. We hope that our technology could be refined and applied to control other bacterial infections and some cancers caused by bacteria.
Sarguru Subash, Assistant Professor of Veterinary Pathobiology, Texas A&M University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Our Lifestyle section on STM Daily News is a hub of inspiration and practical information, offering a range of articles that touch on various aspects of daily life. From tips on family finances to guides for maintaining health and wellness, we strive to empower our readers with knowledge and resources to enhance their lifestyles. Whether you’re seeking outdoor activity ideas, fashion trends, or travel recommendations, our lifestyle section has got you covered. Visit us today at https://stmdailynews.com/category/lifestyle/ and embark on a journey of discovery and self-improvement.
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Lifestyle
Does Your Favorite Brand of Dark Chocolate Contain Dangerous Metals?
According to a recent article from Consumer Reports, there are some brands of Dark Chocolate that contain dangerous levels of lead, and cadmium.
Dark Chocolate
According to a recent article from Consumer Reports, there are some brands of Dark Chocolate that contain dangerous levels of lead, and cadmium.
Dark Chocolate has become popular due to studies suggesting that they are rich in antioxidants, which is beneficial to the heart, and it having low sugar properties that positively impact health.
The article, which was posted in mid December, states that 28 popular brands were tested, and that 23 of them contained high levels of the dangerous metals.
For more details, check out the article from Consumer Reports: https://www.consumerreports.org/health/food-safety/lead-and-cadmium-in-dark-chocolate-a8480295550/
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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