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  • Is Your Child’s Bone Health at Risk? The Dangers...

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    A group of researchers, led by Professor Emil Kääntä, decided to explore a troubling question: Does smoking during pregnancy make children’s bones more fragile?

    The scientists gathered data from over 220,000 children born between 1987 and 1990. These children, now grown, have their health records carefully stored in Finnish medical databases. 

    The researchers wanted to see if there was a link between mothers who smoked during pregnancy and the number of bone fractures their children experienced as they grew up.

    The results were startling. They found that children aged 5 to 15 years, whose mothers smoked while pregnant, had a higher risk of breaking bones. This was not a small increase – these children were 12% more likely to suffer fractures.

    The scientists dug deeper and discovered that this risk was especially significant for non-high-energy fractures, like those that happen from everyday activities rather than serious accidents.

    But why does this happen? The story unfolds with a look at how smoking affects a developing baby. When a mother smokes, harmful substances from the cigarettes can reduce the amount of calcium and nutrients the baby receives. This lack of nutrients can weaken the baby’s developing bones, making them more fragile as the child grows.

    The researchers also noted that this increased risk of fractures was not due to other factors like the child’s activities or parental genetics. It was the smoking itself that was the culprit.

    This discovery highlights an important message: Smoking during pregnancy can have long-lasting effects on a child’s health. Professor Kääntä and his team emphasize the need for preventive measures. They suggest that expectant mothers should receive better support to quit smoking to protect their children’s future health.

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  • How Pharmaceuticals Are Polluting Our Waters?

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    Pharmaceuticals in the environment are a growing concern worldwide. These substances, originating from human and veterinary medicine, have been found in water bodies across the globe. Although they are often present in minuscule amounts, their potential impact on ecosystems and human health is significant. 

    A recent study led by Prof. Cristina Delerue-Matos at the Instituto Superior de Engenharia do Porto unveils the alarming presence and accumulation of these contaminants in our environment. 

    This study, published in the Journal of Xenobiotics, focuses on detecting and analyzing pharmaceuticals in surface water and wastewater in Portugal.

    Pharmaceuticals in the environment are a growing concern worldwide. These substances, originating from human and veterinary medicine, have been found in water bodies across the globe. 

    Although they are often present in minuscule amounts, their potential impact on ecosystems and human health is significant. This study, published in the Journal of Xenobiotics, focuses on detecting and analyzing pharmaceuticals in surface water and wastewater in Portugal.

    The research team collected samples from the Lis River and two wastewater treatment plants (WWTPs) over several years. 

    They used advanced techniques like ultra-high-performance liquid chromatography with tandem mass spectrometry (UHPLC-MS/MS) to identify and quantify various pharmaceuticals. Among the detected substances were common drugs like ibuprofen, caffeine, and diclofenac, as well as antibiotics and psychiatric medications.

    One of the key findings of the study is the increasing concentration of pharmaceuticals over time. The team observed that the levels of these contaminants in the river and wastewater samples have risen steadily. 

    This trend highlights the inadequacy of current wastewater treatment processes in completely removing these substances. Notably, the study found that certain drugs, such as hydroxyibuprofen and caffeine, were consistently present at significant levels.

    Wastewater treatment plants, though essential for purifying our water, have emerged as major pathways for pharmaceuticals to enter the environment. The study revealed that even after treatment, significant amounts of these contaminants are released into the river. 

    Factors such as the season, the frequency of drug usage, and the effectiveness of the treatment process influence the concentration of pharmaceuticals in the water.

    The presence of pharmaceuticals in water bodies poses potential risks to aquatic life and human health. These substances can disrupt the normal functioning of ecosystems, affecting fish and other wildlife. 

    For humans, long-term exposure to low levels of pharmaceuticals through drinking water is a concern that requires further investigation.

    This study underscores the urgent need for improved wastewater treatment technologies that can effectively remove pharmaceuticals. 

    It also highlights the importance of continuous monitoring and regulation of these contaminants. By raising public awareness and implementing stricter controls, we can mitigate the impact of pharmaceuticals on our environment and safeguard our health.

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  • How Blue Light is Secretly Speeding Up Aging—A N...

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    In our modern world, artificial lighting is ubiquitous, with blue light (BL) from screens and LED lights playing a significant role. 

    However, new research from Prof. Jadwiga M. Giebultowicz‘s group at Oregon State University sheds light on the potential dangers of chronic blue light exposure, even beyond its well-documented effects on our eyes. 

    This study, published in Frontiers in Aging, reveals how prolonged exposure to blue light can accelerate aging and disrupt essential metabolic processes in fruit flies, offering insights that may extend to human health.

    Why This Research Matters

    As blue light becomes an increasingly prominent component of our artificial lighting, understanding its broader impact on health is crucial. While many are aware of the immediate effects of blue light on eye health, such as digital eye strain and potential retinal damage, this study highlights its deeper, systemic implications. 

    The findings suggest that blue light exposure could have far-reaching effects on overall health and aging, emphasizing the need for further research and potential changes in how we interact with artificial light in our environments.

    The Study at a Glance

    Prof. Giebultowicz’s research team investigated the effects of chronic blue light exposure on the fruit fly, Drosophila melanogaster, a common model organism in aging research.

    Flies were exposed to constant blue light and compared with those kept in constant darkness. The researchers focused on genetically modified flies lacking eyes (eya2 mutants) to ensure that the observed effects were not limited to visual perception.

    The study revealed several key findings:

    1. Accelerated Aging: Flies exposed to blue light showed reduced lifespans and signs of brain neurodegeneration, even without eyes, indicating that blue light affects tissues beyond the eyes.

    2. Metabolic Disruptions: Blue light exposure significantly altered metabolic pathways in the flies’ heads, particularly those related to energy production. Notably, the levels of succinate were elevated, while pyruvate and citrate levels were reduced, suggesting impaired mitochondrial function.

    3. Neurotransmitter Imbalance: The levels of crucial neurotransmitters, including glutamate and GABA, were significantly reduced in blue light-exposed flies, indicating disrupted brain homeostasis.

    A Closer Look at Metabolic Changes

    One of the most striking findings was the dramatic increase in succinate levels in flies exposed to blue light. Succinate plays a vital role in the tricarboxylic acid (TCA) cycle, a key metabolic pathway for energy production. 

    The increase in succinate, coupled with a decrease in other TCA cycle intermediates, suggests that blue light impairs the activity of succinate dehydrogenase (SDH), an essential enzyme for energy production.

    Furthermore, the study found that blue light exposure led to a significant reduction in several neurotransmitters, including glutamate and GABA. 

    These changes in neurotransmitter levels are associated with the observed neurodegeneration in the flies, highlighting a potential link between blue light exposure and brain health.

    Implications for Human Health

    While this study was conducted on fruit flies, the findings raise important questions about the broader implications of chronic blue light exposure for human health. 

    Given the conserved nature of many metabolic and neurological pathways between flies and humans, the research suggests that long-term exposure to blue light could have similar effects on human aging and metabolic health.

    The potential health risks posed by blue light emphasize the need for more comprehensive research and public awareness. 

    As we continue to integrate artificial lighting into our daily lives, it may be wise to consider strategies to mitigate blue light exposure, such as using blue light filters on screens and reducing screen time, especially before bed.

    Conclusion

    Prof. Jadwiga M. Giebultowicz’s research offers valuable insights into the hidden dangers of blue light exposure. By revealing how chronic exposure can accelerate aging and disrupt vital metabolic processes, this study underscores the importance of re-evaluating our relationship with artificial light. 

    As we strive to create healthier living environments, these findings could guide future research and public health recommendations, helping us all to age more gracefully in a world illuminated by blue light.

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  • How Opioid Alters Brain Synapses Before Birth?

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    Unveiling the Hidden Impact of Prenatal Methadone Exposure on the Developing Brain

    In the quiet corridors of the Stark Neurosciences Research Institute, a groundbreaking discovery was unfolding. A team of dedicated researchers, led by Prof. Brady K. Atwood, embarked on a journey to uncover the mysteries of how prenatal methadone exposure (PME) impacts the developing brain. 

    Their findings, now published in “Advances in Drug and Alcohol Research,” reveal a tale of unexpected changes in the brain’s architecture and function, particularly in the somatosensory cortex, which processes touch and pain sensations.

    Imagine a scenario where a growing number of infants are exposed to opioids even before they take their first breath. The rising opioid use among pregnant women has led to an alarming increase in neonates born with prenatal opioid exposure. 

    But what does this mean for their developing brains? Prof. Atwood and his team sought to answer this very question using a mouse model of prenatal methadone exposure.

    The researchers discovered that prenatal methadone exposure induces long-lasting changes in the brain’s somatosensory cortex (S1). This region is crucial for processing sensory inputs like touch and pain. 

    Using advanced techniques, including proteomics and phosphoproteomics, the team identified significant alterations in protein and phosphopeptide abundances in the S1 of adolescent mice exposed to methadone in the womb.

    Key Findings

    1. Sex-Dependent Changes: The study revealed that the impact of methadone exposure varies between male and female mice. While both sexes exhibited changes, the specific proteins and pathways affected were different, indicating a sex-dependent effect of PME on brain development.

    2. Synaptic Remodeling: One of the most striking findings was the alteration in synaptic functioning. The researchers observed a reduction in inhibitory synaptic markers and changes in synaptic signaling-related biological processes. This suggests that prenatal methadone exposure disrupts the balance of excitatory and inhibitory signals in the brain, which is essential for normal sensory processing.

    3. Reduced Microglia Density: Microglia, the brain’s immune cells, were found to be reduced in the upper layers of the S1, particularly in female mice. This reduction could impair the brain’s ability to respond to injuries and infections, further complicating the developmental outcomes.

    These findings paint a complex picture of how prenatal methadone exposure can lead to lasting changes in the brain’s structure and function. 

    The altered synaptic functioning and reduced microglia density in the somatosensory cortex could explain the persistent sensory and motor deficits observed in individuals exposed to opioids prenatally.

    The study by Prof. Atwood and his team underscores the importance of understanding the long-term effects of prenatal opioid exposure. It calls for heightened awareness and preventive measures for pregnant women using methadone. 

    By shedding light on the hidden impact of prenatal opioid exposure, this research paves the way for better healthcare strategies to support the development of affected children.

    In unraveling the effects of prenatal methadone exposure, Prof. Atwood’s research provides a crucial piece of the puzzle in understanding the opioid crisis’s far-reaching consequences. 

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  • How Microbes Help Plants Shine Under Stress?

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    High in the scorching sun of subtropical and tropical regions, plants often face a daunting adversary: high light stress. This excessive sunlight can damage the delicate machinery of photosynthesis, leading to decreased growth and yield. But what if there was a natural way to help plants endure this intense light and continue to thrive?

    In a groundbreaking study, Professor Heribert Hirt and his team from the King Abdullah University of Science and Technology (KAUST) discovered that a particular strain of bacteria, Enterobacter sp. SA187, could be the key to unlocking high light stress tolerance in plants. This tiny microbe, living symbiotically with the plant, offers a remarkable solution to a persistent problem.

    The researchers conducted experiments with Arabidopsis thaliana, a model plant, and exposed it to high light stress conditions. The results were nothing short of astonishing. 

    Plants colonized by SA187 exhibited significantly better growth and health compared to their non-colonized counterparts. But how exactly did this microbe achieve such a feat?

    The secret lies in the coordination of iron and sulfur metabolism within the plant, orchestrated by the microbe. High light stress often leads to the accumulation of reactive oxygen species (ROS), which can wreak havoc on plant cells. 

    SA187 helps to mitigate this by enhancing the plant’s antioxidative systems, particularly through the synthesis of iron-sulfur (Fe-S) cluster proteins, essential components in the plant’s defense mechanism against oxidative stress.

    Furthermore, the microbe’s presence triggered a cascade of beneficial genetic responses in the plant, strengthening its redox system and maintaining photosynthesis under stress. 

    By promoting the production of key antioxidative molecules like glutathione, the microbe-equipped plants could fend off the damaging effects of ROS more effectively.

    One of the most intriguing aspects of this research is the role of ethylene signaling, a crucial plant hormone pathway. 

    The study showed that the beneficial effects of SA187 were significantly diminished in plants unable to respond to ethylene, highlighting the importance of this hormone in the microbe-induced stress tolerance.

    This discovery opens up exciting possibilities for agriculture, especially in regions prone to high light stress. 

    By harnessing the power of beneficial microbes like SA187, we can develop sustainable and natural methods to enhance crop resilience, potentially leading to improved yields and food security.

    In summary, the partnership between plants and microbes, as revealed by Professor Hirt and his team, showcases nature’s incredible ability to adapt and thrive even in the face of environmental challenges. 

    It’s a testament to the potential hidden in the microscopic world, waiting to be unlocked for the benefit of all.

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  • A New Path to Combat Obesity and Liver Disease

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    Recent research suggests that inhibiting mitochondrial DNA transcription could paradoxically reverse diet-induced obesity and liver disease. This discovery might reshape our understanding of metabolic diseases and potential treatments.

    In a study published in Nature Metabolism, researchers explored how an inhibitor of mitochondrial transcription (IMT) impacts metabolism. 

    Mitochondria are essential for energy production through a process called oxidative phosphorylation (OXPHOS), where nutrients are converted into energy. However, when mitochondrial function is compromised, it can lead to metabolic disorders and even promote tumor growth.

    The researchers conducted an experiment on male mice fed a high-fat diet (HFD) to induce obesity. They treated these mice with an IMT compound and monitored the changes. 

    Remarkably, after just one week of IMT treatment, the mice showed significant weight loss, and after four weeks, their body weight normalized. Moreover, the treatment reversed liver steatosis (fatty liver disease) and restored normal glucose tolerance.

    How Does It Work?

    The paradoxical aspect of this study is that IMT treatment significantly reduced the capacity of oxidative phosphorylation, the very process crucial for energy production. Yet, instead of causing harm, this reduction triggered an increase in fatty acid oxidation in the liver. 

    Proteomic and metabolomic analyses revealed that while the levels of complex I (a key component of OXPHOS) were reduced, other enzymes involved in fatty acid oxidation were upregulated.

    What Makes This Significant?

    This finding is groundbreaking because it suggests a new therapeutic approach to obesity and related metabolic disorders. By inhibiting mitochondrial DNA transcription, it’s possible to rewire liver metabolism to favor fat burning over fat storage. 

    This could lead to the development of new drugs that target mitochondrial function without the severe side effects seen in previous treatments, such as those using the chemical dinitrophenol (DNP).

    Future Implications

    While this study was conducted on mice, it opens the door for further research into how similar treatments could be applied to humans. 

    Understanding the precise mechanisms and potential long-term effects will be crucial. However, the idea that manipulating mitochondrial function can lead to beneficial metabolic changes is an exciting prospect.

    This research highlights a surprising and promising approach to tackling obesity and liver disease by targeting the very powerhouses of our cells. It underscores the complexity of metabolic regulation and offers hope for new, effective treatments in the future.

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  • The Secret Weapon Plants Use to Outsmart Their Nei...

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    Imagine a dense forest, where plants silently compete for sunlight, water, and nutrients. It’s a constant battle for survival, and some plants have developed remarkable strategies to outdo their rivals. 

    One such cunning strategy involves using natural chemicals to hinder the growth of nearby plants. This brings us to the fascinating discovery made by Prof. Robin S.B. Williams and his team at the Royal Holloway University of London.

    In the plant world, Myrica gale, commonly known as bog myrtle, is not just another pretty shrub. It harbors a secret weapon: a chemical called Myrigalone A (MyA). 

    This allelochemical, released through its leaves and roots, has the power to inhibit the growth of neighboring plants. But how does it work?

    Prof. Williams and his team embarked on a journey to unravel this mystery. They turned to a unique model organism, the slime mold Dictyostelium discoideum, which shares some biological pathways with plants. This tiny organism became the key to understanding MyA’s potent effects.

    The researchers discovered that MyA targets a crucial enzyme called ACC oxidase (ACO), which is involved in producing ethylene, a hormone essential for plant growth and development. 

    In their experiments, they found that MyA binds directly to the ACO enzyme, inhibiting its function and thus reducing ethylene production.

    To confirm their findings, the team observed Dictyostelium’s growth and development. They noted that MyA significantly delayed its developmental stages, similar to the effects seen when ACO was genetically removed from the organism. 

    Remarkably, when ethylene was reintroduced, the developmental delays were partially reversed, underscoring MyA’s specific action on the ethylene pathway.

    Taking their research a step further, the scientists tested MyA on Arabidopsis thaliana, a small flowering plant commonly used in research. The results were striking. 

    MyA delayed seed germination and inhibited root and shoot growth, mirroring the effects observed with established ethylene inhibitors. It also reduced the production of root hairs, which are critical for nutrient absorption.

    This discovery is significant because it opens the door to developing new, environmentally friendly herbicides. Traditional herbicides can have harmful side effects on the environment and human health. 

    In contrast, natural allelochemicals like MyA offer a safer alternative, specifically targeting plant growth mechanisms without the broad-spectrum toxicity of synthetic chemicals.

    Future Implications

    Prof. Williams’ research not only sheds light on the sophisticated strategies plants use to compete but also paves the way for innovative agricultural solutions. 

    By harnessing the power of allelochemicals, we could develop sustainable methods to manage crops, improve yields, and reduce reliance on harmful chemicals.

    In a world where the demand for food is ever-increasing, such discoveries are invaluable. They remind us of the intricate balance of nature and the hidden battles that shape our environment. 

    So, the next time you walk through a forest or garden, remember the silent war raging beneath your feet and the incredible strategies plants use to thrive.

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  • Breaking Barriers in Alzheimer’s Research

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    Imagine a world where a simple blood test could predict Alzheimer’s disease long before symptoms appear. This could become a reality thanks to groundbreaking research from Prof. Suzanne E. Schindler‘s team at the Washington University School of Medicine, St. Louis. 

    In their recent study, published in Nature Communications, the researchers unveiled significant findings about Alzheimer’s biomarkers in Black and white individuals, shedding light on crucial racial disparities in the disease’s pathology.

    Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by the accumulation of amyloid plaques and tau tangles in the brain. 

    Traditionally, the detection of these biomarkers has relied on expensive and invasive methods like cerebrospinal fluid (CSF) analysis and positron emission tomography (PET) scans. 

    These methods are not only costly but also less accessible to minority populations, leading to a gap in our understanding of how AD affects different racial groups.

    To address this gap, Prof. Schindler’s team focused on blood-based biomarkers, which offer a more accessible and scalable alternative. 

    The study involved 324 Black and 1,547 white participants from the Study of Race to Understand Alzheimer Biomarkers (SORTOUT-AB), comparing their levels of amyloid-beta (Aβ) proteins Aβ42 and Aβ40 using the PrecivityAD test by C2N Diagnostics.

    The study revealed that Black participants had higher baseline levels of the Aβ42/40 ratio, suggesting a lower burden of amyloid pathology compared to white participants. 

    This finding was primarily due to lower levels of Aβ40 in Black individuals, while Aβ42 levels were similar across both groups. Interestingly, despite these baseline differences, the rate of amyloid accumulation over time was consistent between Black and white participants.

    Why This Research Matters?

    1. Accessibility and Inclusivity: Blood-based tests are more accessible and less invasive than CSF analysis and PET scans, making them ideal for wider application in diverse populations. This could lead to earlier and more equitable detection of Alzheimer’s disease.

    2. Racial Disparities: The study highlights significant racial differences in amyloid pathology, which have implications for clinical trials and treatment strategies. Understanding these differences is crucial for developing effective interventions that work across all racial groups.

    3. Clinical Trials: The findings suggest that current amyloid PET and CSF biomarker thresholds might not be suitable for Black individuals, potentially excluding them from clinical trials. Adjusting these thresholds could ensure more inclusive and representative trials.

    This research underscores the importance of considering racial differences in Alzheimer’s disease pathology. As the medical community moves towards more personalized and inclusive healthcare, such studies are vital for ensuring that advancements benefit everyone, regardless of their racial or ethnic background.

    Prof. Schindler’s team’s work is a significant step towards more inclusive and equitable Alzheimer’s research. By making blood-based biomarkers a viable option for detecting amyloid pathology, they are paving the way for earlier diagnosis and better treatment outcomes for all individuals, particularly those from historically underrepresented groups. 

    This study not only advances our understanding of Alzheimer’s disease but also brings us closer to a future where everyone has an equal chance of fighting this devastating condition.

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  • A New Target in the Fight Against Colorectal Cance...

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    Colorectal cancer (CRC) is a significant health concern worldwide, and its treatment is complicated by the presence of mutations in certain genes, such as KRAS. Researchers are constantly seeking new ways to target these mutations and improve patient outcomes. 

    A recent study led by Ping Lan and colleagues from The Sixth Affiliated Hospital, Sun Yat-sen University, has shed light on a promising new target for treating KRAS mutant CRC: the enzyme pyruvate dehydrogenase phosphatase catalytic subunit 1 (PDP1).

    KRAS is a gene that, when mutated, can drive the progression of various cancers, including colorectal cancer. These mutations lead to continuous activation of the MAPK signaling pathway, which promotes tumor growth and survival. 

    Despite extensive research, targeting KRAS mutations directly has proven challenging. This has led scientists to explore alternative strategies, such as targeting other molecules involved in the KRAS signaling network.

    The study by Lan and colleagues identifies PDP1 as a critical player in KRAS mutant CRC. PDP1 is significantly upregulated in KRAS mutant CRC cells and tissues compared to those with wild-type KRAS. This upregulation is associated with poorer patient prognosis, highlighting the importance of PDP1 in the disease’s progression.

    Through a series of experiments, the researchers demonstrated that PDP1 accelerates the malignancy of KRAS mutant CRC cells. It does this by acting as a scaffold that enhances the interaction between BRAF and MEK1, key components of the MAPK signaling pathway. By facilitating this interaction, PDP1 boosts MAPK pathway activation, driving cancer cell proliferation and survival.

    The researchers also discovered that the transcription factor KLF5 is a major regulator of PDP1 expression in KRAS mutant CRC. KLF5 binds to the PDP1 promoter region, increasing its transcription and, consequently, its protein levels. This finding adds another layer of understanding to the complex regulatory mechanisms behind KRAS mutant CRC.

    One of the most exciting aspects of this study is its potential therapeutic implications. The researchers showed that targeting PDP1, in combination with MAPK pathway inhibitors, significantly hampers the progression of KRAS mutant CRC. This combination approach could offer a new therapeutic strategy for patients who currently have limited treatment options.

    In mouse models, PDP1 knockdown not only reduced tumor growth but also enhanced the efficacy of the KRAS inhibitor sotorasib. This dual-targeting strategy could be a game-changer in the treatment of KRAS mutant CRC, potentially overcoming some of the resistance issues associated with current therapies.

    The discovery of PDP1’s role in KRAS mutant colorectal cancer opens up new avenues for treatment. By targeting PDP1, either alone or in combination with existing MAPK pathway inhibitors, we could significantly improve outcomes for patients with this challenging form of cancer. 

    As research continues, it is hoped that these findings will translate into effective clinical therapies, offering new hope to those affected by colorectal cancer.

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