Articles tagged with Developmental Stages
Researchers discovered that moth flies use a different genetic pathway than fruit flies to establish the head-to-tail axis. The odd-paired gene ensures correct body segment formation, but its expression is earlier and localized to the egg's prospective head region in moth flies.
A study found that children born during the first COVID-19 lockdown in England had lower executive function skills, including difficulty focusing and regulating emotions. Overall language scores were at or above expected levels, but expressive language skills were below average.
A new clinical trial has reported improved survival rates for babies born with a life-threatening fetal disorder called anhydramnios. The treatment involved repeated injections of amniotic fluid into the womb, followed by kidney replacement therapy after birth. Results show that some infants have survived and thrived into toddlerhood.
Researchers found that babies' brains can process music from as young as three months of age, but spontaneous movements to music emerge later in the first year. Infants show enhanced auditory responses to 'music' compared to 'shuffled music', with significant movement increases seen at 12 months.
A biomaterial scaffold has been developed to recreate a skull stem cell niche, reducing craniosynostosis-related deformities and promoting normal skull growth. The triphasic scaffold maintained skeletal stem cells while supporting bone formation and tissue regeneration.
Researchers mapped the human kidney's developmental axis and engineered synthetic organizer cells to recreate key signals, producing improved lab-grown organoids. These advances enable more reliable models for studying disease and evaluating potential therapies.
A study in Dutch birth cohorts found early pregnancy temperature exposure associated with changes in fetal size, with colder temperatures linked to smaller crown-rump length at 12 weeks. Higher temperatures showed stronger associations during early pregnancy.
A new framework, criticome, integrates experience until age 25, reframing autism, schizophrenia, depression, and trauma as developmental disorders. The study suggests that screen-saturated childhoods may produce adult dysfunction, highlighting the importance of early experience in brain development.
Researchers have discovered that errors in the final step of cell division can cause dramatic changes in developing brain cells, leading to abnormalities such as multiple nuclei and cilia. The study found that a protein called p53 acts as a guardian of brain development by triggering the self-destruction of abnormal cells.
Embryos can tolerate disruption of cell division at certain stages of development, particularly during the gastrula phase where a mechanism called the spindle assembly checkpoint helps them withstand misaligned chromosomes. Disruptions during other stages, such as the pre-gastrula period, are more deadly and lead to defects.
Aging bone repair declines due to mitochondrial DNA structures disrupting stem cell function, reducing energy production and causing cellular senescence pathways. Targeting these structures may restore balance between bone and cartilage formation during healing.
A new study by the University of Sydney found that toddlers' pretend play ability is significantly associated with fewer emotional and behavioral difficulties at primary school. The researchers analyzed data from over 1400 Australian children and found that stronger pretend play ability among two- to three-year-olds was linked to bette...
A Cochrane review found that chlorhexidine application to umbilical cord stumps likely reduces infections by 29% and may lower mortality rates, particularly in LMICs. Umbilical cord care is crucial for preventing infection and promoting healthy healing.
A systematic review and meta-analysis found consistent associations between digital media use and risks to child health and development, particularly social media use. The study highlights the need for multifaceted policies and interventions to mitigate potential harms from digital media exposure.
Research found problematic screen use in early adolescence strongly linked to higher risks of mental health problems, sleep disturbance, and suicidal behaviors. The study emphasizes the importance of reducing addictive features on digital platforms and families taking steps to mitigate its impact.
A cohort study reveals that infants from vegan households have similar growth patterns to those from omnivorous households, with a higher risk of early underweight at birth. As the findings suggest, further research is needed to examine the quality of vegan diets and the impact of nutritional counseling during pregnancy and infancy.
A cross-sectional study found that up to half of adolescents in the US were using generative AI apps, while a small subset engaged in heavy use. The study highlights the need for future research on individual differences in GenAI use and its impacts on adolescent development.
A cohort study of students in grades 4-12 found that social media use varied by age and sex, with heavy use linked to poorer well-being. The study's findings suggest that abstinence from social media may not always be beneficial for adolescents.
Dr. Maria Margarita Behrens' work deciphers the molecular signatures defining every human brain cell type, shedding light on neural development and psychiatric disorders. Her single-cell epigenomic atlases will enable researchers to target specific cell types with unprecedented precision.
Children exposed to high levels of screen time before age two showed changes in brain development linked to slower decision-making and increased anxiety by their teenage years. Parent-child reading may offer protection against these effects.
Research found that children exposed to higher-than-usual temperatures were less likely to meet developmental milestones for literacy and numeracy. The effects were more pronounced among economically disadvantaged households, with access to clean water and urban areas.
The ISSCR, SDB, and the Allen Institute are hosting a three-day scientific symposium featuring early-career scientists, focusing on cross-disciplinary exchange and amplifying emerging leaders in developmental biology and stem cell science. Confirmed topics include data analysis, model systems, spatial awareness, and cell fates.
Researchers have created detailed maps of the mammalian brain's developmental stages, shedding light on how brain cells form and mature. The findings provide valuable insights into the critical periods that may help diagnose and treat neurodevelopmental disorders such as autism and ADHD.
A new study from the University of Houston reveals that outdoor fun with a focus on challenge, novelty, and guidance can promote positive youth development. The 'Four Types of Fun' model offers a theoretical framework for understanding fun and its role in character building.
New research from the Stowers Institute for Medical Research reveals planarian stem cells ignore their nearest neighbors and respond to signals further away in the body. This discovery may help explain the flatworm's extraordinary ability to regenerate and offer clues for developing new ways to replace or repair tissues in humans.
A recent study published in Integrative and Comparative Biology found that bonnethead sharks' skin undergoes significant changes as they mature, with younger sharks having fewer ridges on their denticles. These changes likely improve swimming performance and protect the skin from predators or injuries.
A recent study published in Alcohol: Clinical & Experimental Research found that fathers' alcohol use may have a negative impact on children's growth and development by age seven. Children of fathers who drank heavily during pregnancy were more likely to be shorter, have smaller heads, and score lower on verbal IQ tests.
The NIH Baby Toolbox is a new nationally standardized assessment tool for infants aged 16-42 months, measuring cognitive, language, motor and social-emotional skill development. The tool uses video-based assessments to engage infants in tasks, overcoming previous limitations in measuring young children.
Researchers have established apple snails as a system to study eye regeneration, which may hold the key for restoring vision due to damage and disease. The team discovered that the snail eye is anatomically similar to humans and can regrow itself, with genes such as pax6 playing a crucial role in development.
Researchers at the Francis Crick Institute discovered that early heartbeats trigger biological signals guiding the formation of a functional beating heart in zebrafish. The study highlights the heart's ability to remodel and adapt, shedding light on congenital heart conditions.
US adolescents spend nearly an hour per school day on smartphones, with most of this time dedicated to social media. The study highlights developmental differences in smartphone use, with younger teens using less than older adolescents.
Researchers at King Abdullah University of Science and Technology (KAUST) have created a deep learning tool called deepBlastoid to study human embryo development in artificial laboratory conditions. The tool can evaluate images of blastoids equally well as expert scientists but 1000 times faster than traditional methods.
Dr. Xuyu Qian's pioneering research using MERFISH technology created an unprecedented developmental atlas of the human cerebral cortex, analyzing over 18 million single cells. His work aims to identify mechanisms disrupted in conditions like malformations and autism spectrum disorder.
A study by the CSIC-UMH Institute of Neurosciences uncovers how flies' flight stabilizers, the halteres, take shape. The structure is stabilized by a sophisticated cellular system that connects its two surfaces through an internal framework.
The use of GLP-1 receptor agonists among diabetes patients is associated with a higher risk of developing incident neovascular age-related macular degeneration. Further research is needed to understand the underlying mechanisms and trade-offs between benefits and risks.
Researchers created first complete genetic activity map of a branching worm, revealing how it controls reproduction across its multiple body branches. The study highlights the unique genetic toolkit and challenges understanding of animal bodies' organization.
A cross-sectional study found common experiences of gaslighting and substantial distress among patients with vulvovaginal disorders. The study emphasizes the need for education supporting a biopsychosocial approach to vulvovaginal pain, as well as the development of validated instruments to quantify patient experiences.
A study found that parental technology use in a child's presence was negatively associated with cognitive and psychosocial outcomes, as well as screen time among young children. The effect sizes were small, highlighting the need for further research on potential impacts on physical activity, sleep, and motor skills.
A new study reveals that maternal immune activation can alter hippocampal neuron excitability in newborn rats, with implications for neurodevelopmental disorders. Prenatal inflammation has been linked to conditions like autism, schizophrenia, and depression, and may underlie their increased risk.
The COVID-19 pandemic has been associated with negative developmental trends in kindergarteners, persisting beyond the pandemic's onset. The study highlights troubling trends in kindergarteners' development before and during the pandemic, underscoring the need for further research.
The Antarctic midge employs a unique survival mechanism by undergoing quiescence in its first year and obligate diapause in its second. This adaptation allows the insect to quickly resume development when temperatures rise.
Researchers have created a comprehensive atlas of zebrafish development, combining time-lapse videos and gene expression data to map the behavior of individual cells. This breakthrough tool offers new insights into how lifeforms develop from single cells to complex organisms.
A cohort study examines how traumatic and adverse childhood experiences influence developmental changes in psychiatric risk and cognitive ability. The findings suggest targeted early prevention and intervention strategies for at-risk youth.
Researchers investigate how racism affects development during childhood and adolescence, finding significant increases in epigenetic age acceleration. The study suggests that policies and social regularities may perpetuate discrimination against ethnically and racially minoritized adolescents.
Researchers at the University of Cambridge found that flowers like hibiscus use an invisible blueprint to dictate the size of their bullseyes, which can significantly impact their ability to attract pollinating bees. Larger bullseyes are preferred by bees and can potentially boost efficiency for both bees and blossoms.
Dartmouth anthropologists argue that jungle gyms and monkey bars are essential for childhood development, allowing children to build resilience and confidence through risk-taking play. The research cites fossil evidence showing early humans spent extensive time in trees, and modern nonhuman primates exhibit similar climbing skills.
Researchers at University of California - San Diego have discovered a link between environmentally induced autism and altered neurotransmitter expression in the brain. The study suggests that manipulating these neurotransmitters early in development can prevent autistic-like behaviors.
Scientists developed a framework that aligns satellite data with rice growth stages to boost paddy rice mapping accuracy. The new approach improved accuracy by 6.44-16.10% and provided insights into critical factors influencing rice phenology and spatial distribution.
A study of 1,300 emerging adolescents found that higher parental technoference levels were associated with increased anxiety symptoms, inattention, and hyperactivity. The findings highlight the need for parents and emerging adolescents to discuss digital technology use and mental health as part of routine care.
A WVU biologist is studying how genes establish animal body plans and contribute to regenerative abilities. He has identified Hox genes as key players in planarian regeneration, suggesting their functions may differ in highly regenerative versus poorly regenerative organisms.
Researchers at University of Tsukuba have achieved the first successful lab rearing of Hypselodoris festiva, revealing a previously unknown growth process. The study describes nine stages of development, from metamorphosis to adulthood, and provides a reference for further research on Chromodorididae species.
A groundbreaking approach inspired by bio-inspired neuromorphic imaging and speckle correlography has unveiled a revolutionary technique for optical image encryption. This method leverages computational neuromorphic imaging to encrypt images into event-stream ciphertexts, significantly enhancing security and complexity.
Researchers have created a detailed 3D atlas of the African clawed frog's development, revealing key changes during metamorphosis. The atlas uses X-ray microtomography to show the transformation from tadpole to mature adult frog.
A study found that individuals with stable employment have better identity synthesis and experience less identity confusion compared to those with unstable employment. Those with higher identity synthesis also report higher life satisfaction regardless of employment status.
A new biomarker has been discovered that can help predict which patients with clear cell renal cancer are at higher risk of recurrence. The 15-gene signature was found to be independently associated with worse disease-free survival and disease-specific survival in two large validation datasets.
The number of US individuals with chronic hypertension in pregnancy increased significantly, while medication treatment remained low, according to a new study. The findings highlight the need for improved maternal health strategies to address high blood pressure and cardiovascular complications.
Researchers discovered that killifish early embryogenesis differs from other fish species, with the embryo's body axis formed through self-organization rather than maternal pre-patterning. This adaptation allows the species to survive dry periods without accumulating damaged cells.
Researchers found that restricting screens in bedrooms and at mealtimes has the biggest impact on reducing screen time and addictive behavior. Parents who model healthy practices at home also see a decrease in their child's screen use. Limiting and monitoring screen time can reduce usage by 1.29 hours and 0.83 hours, respectively.
A novel approach to training AI systems uses information about spatial position to identify objects and navigate surroundings, inspired by children's visual development. The method improves contrastive learning models' effectiveness by incorporating simulated spatial context information, outperforming base models in various tasks.
A study of Neanderthal and Palaeolithic human teeth reveals that the two species experienced childhood stress at different developmental stages. Neanderthal children faced increased stress post-weaning, while Palaeolithic humans were less stressed after weaning.