Australian agricultural exporters will benefit from tariff eliminations when the Australia-UK Free Trade Agreement enters into force.

The Mexican Government has suspended tariffs on a range of agricultural and fishery products.

India is one of Australia’s fastest growing tourism markets. Tourism businesses can realise the potential of the Indian market by learning about travellers’ culture and service expectations.

Kim Seung-ho initiated the idea to host an exhibition featuring artworks by 30 Chinese and South Korean artists born in 1992, when China and the Republic of Korea established formal diplomatic relatio

Check here each week to keep up with the latest from John MacArthur's pulpit at Grace Community Church.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

Countries like Cyprus, Israel and Greece have high expectations of becoming players in world energy markets through natural gas production and export.

'On the Living and the Dead' dives into Israeli artist Hava Raucher’s fearless views on society.

A previous work by the artist, dedicated to the Israeli victims of Hamas, was also vandalized.

[African Development Bank (AfDB)] The world's largest annual climate conference opens in Baku, Azerbaijan, on Monday, with African nations ramping up efforts to tackle climate change. At COP29, the African Development Bank aims to mobilize additional resources for climate action in Africa and launch a bold new approach to assessing African economies by including their "green wealth."

Singapore's bilingual policy has been the cornerstone of its development. It is time for the country to take the next step and embrace biculturalism.

The immigration ban, which combined with health care reform will likely wreak even more havoc on an already depressed rural America.

Tyrannosaurus Rex of London's Natural History Museum, a model like no other

Rejoice Muzamani is studying in preparation for her next paper during the end-of-term examinations at Mwenje Primary School in Chiredzi, southeast Zimbabwe. The 13-year-old girl, who is in Grade 7 or final year of primary school, is not worried about leaving school early to make the 7-kilometer journey back home before dusk, risking attacks from […]

  More durable than bronze, higher than Pharaoh’s pyramids is the monument I have made, a shape that angry wind or hungry rain cannot demolish, nor the innumerable ranks of the years that march in centuries. I shall not wholly die: some part of me will cheat the goddess of death. Thus wrote, not without […]

Mongolia's nomadic herders, reliant on fragile ecosystems, are facing increasing challenges from climate change. The Asian Development Bank is empowering these communities with small grants and targeted initiatives to build climate resilience.

to write an economic naturalist paper

Migration may reinforce less productive forms of informal employment in rural Nepal.

The proposed project will expand a targeted, nutrition-sensitive conditional cash transfer (CCT) program to up to 30,000 poor households in areas with high rates of poverty, malnutrition, and climate risks, and make social protection systems more adaptive and shock-responsive. The CCT targets poor pregnant women and mothers of children under two as adequate nutrition is critical during the first 1,000 days of a child's life.

A well in Nebraska is the first in the world to have been drilled in search of naturally occurring geologic hydrogen, but tests to determine how much of the gas it might supply are on hold because of a broken pump

Companies are searching all over the world for deposits of geologic hydrogen that could be used as clean fuel, and a mine in Albania could give them clues about where to look

Fibres in wet wipes and clothes often make their way into soil - and natural versions could be more damaging than synthetic ones

Title: Scientists Unravel Secrets of People Who Naturally Suppress HIV
Category: Health News
Created: 8/26/2020 12:00:00 AM
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Category: Health and Living
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Category: Health News
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The 10q11.22 chromosomal region is a duplication-rich interval of the human genome and one of the last to be fully assembled. It carries copy number–variable genes associated with intellectual disability, bipolar disorder, and obesity. In this study, we characterized the structural diversity at this locus by analyzing 64 haploid assemblies produced by the Human Pangenome Reference Consortium. We identified 11 alternative haplotypes that differ in the copy number and/or orientation of large genomic segments, ranging from hundreds of kilobase pairs (kbp) to over one megabase pair (Mbp). We uncovered a 2.4 Mbp size difference between the shortest and longest haplotypes. Breakpoint analysis revealed that genomic instability results from nonallelic homologous recombination between segmental duplication (SD) pairs with varying similarity (94.4%–99.6%). Nonetheless, these pairs generally recombine at positions where their identity is higher (>99.6%). Recurrent inversions occur with different breakpoints within the same inverted SD pair. Inversion polymorphisms shuffle the entire SD arrangement, creating new predispositions to copy-number variations. The SD architecture is associated with a catarrhine-specific subgroup of the AGAP gene family, which likely triggered the accumulation of SDs at this locus over the past 25 million years of human evolution. Our results reveal extensive structural diversity and genomic instability at the 10q11.22 locus, and expand the general understanding of the mutational mechanisms behind SD-mediated rearrangements.

The SARS-CoV-2 frameshifting element (FSE) has been intensely studied and explored as a therapeutic target for coronavirus diseases, including COVID-19. Besides the intriguing virology, this small RNA is known to adopt many length-dependent conformations, as verified by multiple experimental and computational approaches. However, the role these alternative conformations play in the frameshifting mechanism and how to quantify this structural abundance has been an ongoing challenge. Here, we show by DMS and dual-luciferase functional assays that previously predicted FSE mutants (using the RAG graph theory approach) suppress structural transitions and abolish frameshifting. Furthermore, correlated mutation analysis of DMS data by three programs (DREEM, DRACO, and DANCE-MaP) reveals important differences in their estimation of specific RNA conformations, suggesting caution in the interpretation of such complex conformational landscapes. Overall, the abolished frameshifting in three different mutants confirms that all alternative conformations play a role in the pathways of ribosomal transition.

Neuropathic pain is a form of chronic pain that develops because of damage to the nervous system. Treatment of neuropathic pain is often incompletely effective, and most available therapeutics have only moderate efficacy and present side effects that limit their use. Opioids are commonly prescribed for the management of neuropathic pain despite equivocal results in clinical studies and significant abuse potential. Thus, neuropathic pain represents an area of critical unmet medical need, and novel classes of therapeutics with improved efficacy and safety profiles are urgently needed. The cannabidiol structural analog and novel antagonist of GPR55, KLS-13019, was screened in rat models of neuropathic pain. Tactile sensitivity associated with chemotherapy exposure was induced in rats with once-daily 1-mg/kg paclitaxel injections for 4 days or 5 mg/kg oxaliplatin every third day for 1 week. Rats were then administered KLS-13019 or comparator drugs on day 7 in an acute dosing paradigm or days 7–10 in a chronic dosing paradigm, and mechanical or cold allodynia was assessed. Allodynia was reversed in a dose-dependent manner in the rats treated with KLS-13019, with the highest dose reverting the response to prepaclitaxel injection baseline levels with both intraperitoneal and oral administration after acute dosing. In the chronic dosing paradigm, four consecutive doses of KLS-13019 completely reversed allodynia for the duration of the phenotype in control animals. Additionally, coadministration of KLS-13019 with paclitaxel prevented the allodynic phenotype from developing. Together, these data suggest that KLS-13019 represents a potential new drug for the treatment of neuropathic pain.

The consumption of ⁹-tetrahydrocannabinol (THC)- or cannabis-containing edibles has increased in recent years; however, the behavioral and neural circuit effects of such consumption remain unknown, especially in the context of ingestion of higher doses resulting in cannabis intoxication. We examined the neural and behavioral effects of acute high-dose edible cannabis consumption (AHDECC). Sprague-Dawley rats (six males, seven females) were implanted with electrodes in the prefrontal cortex (PFC), dorsal hippocampus (dHipp), cingulate cortex (Cg), and nucleus accumbens (NAc). Rats were provided access to a mixture of Nutella (6 g/kg) and THC-containing cannabis oil (20 mg/kg) for 10 minutes, during which they voluntarily consumed all of the provided Nutella and THC mixture. Cannabis tetrad and neural oscillations were examined 2, 4, 8, and 24 hours after exposure. In another cohort (16 males, 15 females), we examined the effects of AHDECC on learning and prepulse inhibition and serum and brain THC and 11-hydroxy-THC concentrations. AHDECC resulted in higher brain and serum THC and 11-hydroxy-THC levels in female rats over 24 hours. AHDECC also produced: 1) Cg, dHipp, and NAc gamma power suppression, with the suppression being greater in female rats, in a time-dependent manner; 2) hypolocomotion, hypothermia, and antinociception in a time-dependent manner; and 3) learning and prepulse inhibition impairments. Additionally, most neural activity and behavior changes appear 2 hours after ingestion, suggesting that interventions around this time might be effective in reversing/reducing the effects of AHDECC.

BACKGROUND AND PURPOSE:

Neuronal ceroid lipofuscinoses are a group of neurodegenerative disorders. Recently, enzyme replacement therapy (ERT) was approved for neuronal ceroid lipofuscinosis type 2 (CLN2), a subtype of neuronal ceroid lipofuscinoses. The aim of this study was to quantify brain volume loss in CLN2 disease in patients on ERT in comparison with a natural history cohort using MRI.

BACKGROUND AND PURPOSE:

Periprocedural intracranial hemorrhage is one of common complications after stent placement for symptomatic intracranial atherosclerotic stenosis. This study was conducted to demonstrate predictors and long-term outcomes of periprocedural intracranial hemorrhage after stent placement for symptomatic intracranial atherosclerotic stenosis.

Sleep is a fundamental feature of life for virtually all multicellular animals, but many questions remain about how sleep is regulated by circadian rhythms, homeostatic sleep drive that builds up with wakefulness, and modifying factors such as hunger or social interactions, as well as about the biological functions of sleep. Substantial headway has been made in the study of both circadian rhythms and sleep in the fruit fly Drosophila melanogaster, much of it through studies of individual fly activity using Drosophila activity monitors (DAMs). Here, we describe approaches for the activation of specific neurons of interest using optogenetics (involving genetic modifications that allow for light-based neuronal activation) and thermogenetics (involving genetic modifications that allow for temperature-based neuronal activation) so that researchers can evaluate the roles of those neurons in controlling rest and activity behavior. In this protocol, we describe how to set up a rig for simultaneous optogenetic or thermogenetic stimulation and activity monitoring for analysis of sleep and circadian rhythms in Drosophila, how to raise appropriate flies, and how to perform the experiment. This protocol will allow researchers to assess the causative role in the regulation of sleep and activity rhythms of any genetically tractable subset of cells.

Indwelling pleural catheters (IPCs) have rapidly grown in popularity since their introduction for the management of recurrent pleural effusions. In malignant pleural effusions especially, there has been a shift away from measuring pleurodesis success and towards more patient-centred outcomes. Multiple randomised controlled trials have shown that despite lower rates of pleurodesis, symptom control and quality of life outcomes are comparable when compared to alternatives such as talc pleurodesis. IPCs have the added benefit of minimising inpatient hospital stays and reducing the need for recurrent pleural interventions, key priorities for patients with palliative disease. As a result, IPC treatment is associated with excellent patient satisfaction coupled with acceptably low complication rates. Furthermore, in patients with a short life expectancy they confer a cost benefit for the healthcare system.

Far from causing harm, IPCs are now recommended as first-line treatment by current clinical guidelines. In malignant pleural disease, guidance advocates IPCs should be offered as a first-line option with the focus on patient priorities and preferences. Ultimately IPCs provide a safe, effective, ambulatory option for managing recurrent pleural effusions.