News
Nature’s Diabetes Experts: Bats
A new study reveals that bats have evolved unique mechanisms to survive incredibly high blood sugar levels that would be lethal to humans.
United States: Recent expert reports suggest that some bats possess the highest blood sugar levels as observed in any mammals, which would kill a human, but such bats survive or even survive with such levels.
More about the finding
According to experts, these bats could provide a way to look into treatments and the management of diabetes.
As per Jasmin Camacho, a co-lead investigator and a postdoctoral research associate with the Stowers Institute for Medical Research in Kansas City, Missouri, “Our study reports blood sugar levels that are the highest we have ever seen in nature — what would be lethal, coma-inducing levels for mammals, but not for bats,” as US News reported.
“We are seeing a new trait we didn’t know was possible,” she added.
Study details
The study, which was published on August 28 in the Nature Ecology & Evolution journal, performed tests related to blood sugar on almost two hundred wild bats belonging to twenty-nine species and fed them with sugars linked with diets of either insects, fruits, or nectar.
As per Andrea Bernal-Rivera, the co-lead investigator and a former researcher with the Stowers Institute, “We saw various ways sugar is assimilated — absorbed, stored and used in the body — and how this process has become specialized due to different diets,” as the US News reported.
As per the research reports, the results show that bats have evolved to survive better and make better strategies based on the diets they are presented in their environments.
Moreover, thirty million years ago, experts indicated that a Neotropical leaf-nosed bat could survive only on insects. These bats have now evolved into several other species of bat by changing their eating habits.
Different species of leaf-nosed bats also have different adaptation methods to help them control their blood sugar levels by munching on food ranging from fruits, nectar, meat, and even blood.
According to Camacho, “Fruit bats have honed their insulin-signaling pathway to lower blood sugar.”
“On the other extreme, nectar bats can tolerate high blood glucose levels, similar to what is observed in people with unregulated diabetes. They have evolved a different mechanism, and it does not seem to depend on insulin,” Camacho added.
News
Bridging the Gap: Police Training for Black Autistic Youth
Improved police training and awareness are essential to ensure safer, more understanding interactions with Black autistic youth.
United States: Black parents with teenagers with autism have concerns about their children’s vulnerability when they encounter police officers.
Key Findings from the Study
A study published on Dec. 16 in the Autism Journal has revealed that aspects like reduced eye contact observed in children with autism may make police consider them to be guilty, as reported by HealthDay.
Sadly, police officers do not learn that these actions are typical among children with autism, families informed scholars.
Voices of the Researchers
“It’s important for everyone to understand that the parents in this study said they were hopeful, which we interpreted as Black caregivers’ faith that interactions between officers and Black autistic youth could be better,” said lead researcher Ashlee Yates Flanagan, a clinical psychologist at the Children’s Hospital of Philadelphia Center (CHOP) for Autism Research.
Researchers reveal important themes to improve interactions between police and Black autistic youth https://t.co/4KaqLTKU8M
— Continental Clinical (@Conti_Clinical) December 16, 2024
“This demonstrates that there’s space for improvement in training, and we can take what we know from this study and explore it further,” Flanagan added in a CHOP news release.
During the interviews, four distinct themes surfaced:
- The caliber of police officer education
- Inappropriate police enforcement of typical autistic behaviors
- The overt threat of injury and death
- Families believe that police officers may become aggressive towards gestures and responses that are normal for AS children but not for other children, as the study indicated.
Some families said that training might make police see these differences in conduct, which should bring about tolerance and perseverance that could enhance the relations between children and the police.
CHOP Researchers Identify Key Ways to Improve Police Interactions with Black Autistic Youthhttps://t.co/8wlvNa0HUu pic.twitter.com/RhpNeYSc0f
— Autism and Friends (@autismtalknd) December 17, 2024
“In this study, we captured rich narratives from stakeholders who have not been represented well in prior research, but whose thoughts and perspectives are critical for knowing how to improve outcomes for Black autistic youth and police,” said senior researcher Julia Parish-Morris, a scientist in the CHOP Center for Autism Research, as reported by HealthDay.
“Our findings suggest that there is a lot of room for growth in training for police officers and that Black parents of Black autistic youth carry hope that outcomes can be improved,” Parish-Morris added.
News
AI Breakthrough Simplifies Lung Disease Testing
This AI breakthrough promises faster, more accessible, and cost-effective COPD diagnosis with a single CT scan.
United States: Research says that people with breathing problems can know whether they are suffering from COPD with the help of a new lung AI test.
AI Offers a One-Scan Solution for COPD
The newly developed AI can accurately diagnose COPD using data from a single chest CT scan performed as a person inhales, researchers reported Dec. 12 in the journal Radiology: Cardiothoracic Imaging, as reported by HealthDay.
The researchers said it can also inform from that scan how severe a person’s COPD is.
So far, doctors have required two CT scans to diagnose and assess COPD — one when the person has taken a deep breath and one when he or she has exhaled.
“Our study shows that COPD diagnosis and staging is feasible with a single CT acquisition and relevant clinical data,” said researcher Kyle Hasenstab, an assistant statistics and data science professor at San Diego State University.
A Growing Global Health Concern
COPD is defined as a systemic group of lung diseases that become worse over time and make it difficult for individuals in the community to breathe. COPD is chronic, and there is no known treatment for the disease, although it ranks third in deaths globally, according to the researchers’ background information.
The researchers added that spirometry, a lung function test that tests the amount of air, including vital capacity, that a patient can inhale and exhale, has been the primary approach toward identifying COPD.
Some hospitals already use CT images of the lungs to help diagnose COPD because the images can point out lung tissue that might be limiting breath, Hasenstab said.
“However, this type of protocol is not clinically standard across institutions,” Hasenstab said; this is due to the fact that it requires additional training for the staff to be able to take good CT images as well as to be able to interpret them.
Scientists believed that if the AI could read CT scans for COPD, more people could be provided with CT scans, despite a lack of training.
How the AI Works
To provide answers for this study, the researchers captured the inhaled and expelled lung CT scans of nearly 8,900 patients who were tested from November 2007 to April 2011 and their spirometry results.
The average age of patients was 59, and all patients were smokers.
Benefits of the AI Tool
The team then utilized the CT scans and the clinical data to teach the AI to forecast spirometry outcomes.
Study findings indicated that the AI could identify COPD by relying on one of the CT scans and could reasonably express how severe the COPD had become.
Researchers pointed out that when they introduced clinical data, the accuracy of the AI was enhanced.
Researchers also discovered that the AI’s performance was similar when the patients had to hold their breath during the CT scan or when they were breathing normally, as reported by HealthDay.
“Reduction to a single inspiratory CT acquisition can increase accessibility to this diagnostic approach while reducing patient cost, discomfort, and exposure to ionizing radiation,” Hasenstab said in a journal news release.
News
Screen Time Wrecks Preschoolers’ Sleep and Behavior
Excessive screen time disrupts preschoolers’ sleep and behavior, underscoring the need for controlled device usage and better sleep habits.
United States: Excessive use of electronic devices threatens preschoolers’ sleep and urges the child to become a terror of the house, new research shows.
Screen Time and Sleep: A Vicious Cycle
Researchers said poor sleep worsens children’s ability to focus and be less hyperactive and moody, as published in Early Child Development and Care on 12th December.
Worse still, cylinders can occur where kids spend a lot of time in front of screens, leading to poor sleeping habits and consequently increased screen time, as reported hy HealthDay.
“Our results suggest the presence of a positive feedback loop, wherein increased screen time and sleep disturbances exacerbate each other through cyclic reinforcement, heightening the risk of hyperactive attention problems, anxiety, and depression,” said researcher Dr. Bowen Xiao, an expert in children’s socio-emotional functioning and developmental psychopathology with Carleton University in Canada.
The Research: Insights from Parents
To gather data, the authors administered questionnaires to the 571 mothers of preschool children aged between 3 and 6 years attending seven public kindergartens in Shanghai.
Moms recorded the number of daily hours their children spent with a TV, smartphone, computer, or any other screen-based device. They also asked them questions to determine any possible behavioral issues that their kids may have, as well as the quality and duration of sleep their children get.
“Our results indicate that excessive screen time can leave the brains of preschool children in an excited state, leading to poor sleep quality and duration,” said researcher Yan Li, an expert in preschool education from Shanghai Normal University.
Researchers also pointed out that other studies have shown that children’s screen use can cause emotional issues and hyperactivity.
According to this study, screen time may be the cause, according to the experts.
Screen Time’s Impact on Sleep
“This poor sleep may be due to postponed bedtimes caused by screen viewing and the disruption of sleep patterns due to overstimulation and blue-light exposure,” added lead author Shujin Zhou, a doctor of psychology at Shanghai Normal University.
“Screen use might also displace time that could have been spent sleeping and increase levels of physiological and psychological arousal, leading to difficulties in falling asleep,” Zhou said in a journal news release.
Therapeutic Implications
According to Zhou, these findings may help guide future therapies for young children’s mood and hyperactivity issues.
“The implications of our study are two-fold: first, controlling screen use in preschool-age children can help alleviate behavioral problems and poor sleep quality, and second, sleep interventions and treatments can be effective in mitigating the adverse effects of screen time on behavioral issues,” Zhou noted, as reported hy HealthDay.
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