Publications by authors named "Bryon A"

Nudiviruses (family ) are double-stranded DNA viruses that infect various insects and crustaceans. Among them, Heliothis zea nudivirus 1 (HzNV-1) represents the rare case of a lepidopteran nudivirus inducing a sexual pathology. Studies about molecular pathological dynamics of HzNV-1 or other nudiviruses are scarce.

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The house cricket, , is a commonly reared insect for food and feed purposes. In 1977, a report described a colony collapse, which was caused by the single-stranded DNA virus Acheta domesticus densovirus (AdDV). Currently, there are no confirmed colonies free of AdDV, and viral disease outbreaks are a continuous threat to mass rearing.

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Objective:  Placenta accreta spectrum (PAS) is a cause of massive obstetric hemorrhage and maternal mortality. The application of family-centered delivery techniques (FCDTs) during surgery to treat this disease is infrequent. We evaluate the implementation of FCDTs during PAS surgeries.

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The fall armyworm (FAW), , is a native pest species in the Western hemisphere. Since it was first reported in Africa in 2016, FAW has spread throughout the African continent and is now also present in several countries in Asia as well as Australia. The invasion of FAW in these areas has led to a high yield reduction in crops, leading to huge economic losses.

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Introduction: The main complication of placenta accreta spectrum (PAS) is massive bleeding. Endoarterial occlusion techniques have been incorporated into the management of this pathology. Our aim was to examine the endovascular practice patterns among PAS patients treated during a 9-year period in a low-middle income country in which an interdisciplinary group's technical skills were improved with the creation of a PAS team.

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Introduction: The main complication of the abnormally invasive placenta is massive bleeding, with transfusions required frequently. We aim to evaluate the impact of interdisciplinary management on transfusion practices in women with abnormally invasive placenta.

Methodology: Clinical outcomes of women with abnormally invasive placenta treated between 2011 and 2019 were reviewed, including transfusion frequency.

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Keto-carotenoids contribute to many important traits in animals, including vision and coloration. In a great number of animal species, keto-carotenoids are endogenously produced from carotenoids by carotenoid ketolases. Despite the ubiquity and functional importance of keto-carotenoids in animals, the underlying genetic architectures of their production have remained enigmatic.

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Resective-reconstructive treatment of an abnormally invasive placenta, also known as conservative surgical management, allows a comprehensive treatment of the pathology in only one surgery; however, this alternative is not generally included in international consensus, as it requires specific training. Here, we report our experience of this type of treatment and its plausibility after training facilitated by interinstitutional collaboration via telemedicine. A total of 48 women who were diagnosed with abnormally invasive placenta, before and after changes due to the resection-reconstruction protocol were included in the study.

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Pesticide resistance arises rapidly in arthropod herbivores, as can host plant adaptation, and both are significant problems in agriculture. These traits have been challenging to study as both are often polygenic and many arthropods are genetically intractable. Here, we examined the genetic architecture of pesticide resistance and host plant adaptation in the two-spotted spider mite, , a global agricultural pest.

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Article Synopsis
  • Vector control is crucial for malaria prevention, but insecticide resistance, especially in Anopheles arabiensis in Ethiopia, poses a significant challenge, with resistance identified against DDT and deltamethrin.
  • Research using RNA sequencing revealed that two specific enzymes (glutathione-S-transferase and cytochrome P450 monooxygenase) are overexpressed in resistant populations, indicating their role in metabolic resistance.
  • Additionally, changes in gene expression related to the insect's cuticle were linked to resistance, suggesting that cuticle composition may contribute to how these mosquitoes resist insecticides.
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Background: The emergence and spread of insecticide resistance in the major African malaria vectors Anopheles gambiae (s.s.) and An.

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Carotenoids underlie many of the vibrant yellow, orange, and red colors in animals, and are involved in processes ranging from vision to protection from stresses. Most animals acquire carotenoids from their diets because de novo synthesis of carotenoids is primarily limited to plants and some bacteria and fungi. Recently, sequencing projects in aphids and adelgids, spider mites, and gall midges identified genes with homology to fungal sequences encoding de novo carotenoid biosynthetic proteins like phytoene desaturase.

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Background: Diapause or developmental arrest, is one of the major adaptations that allows mites and insects to survive unfavorable conditions. Diapause evokes a number of physiological, morphological and molecular modifications. In general, diapause is characterized by a suppression of the metabolism, change in behavior, increased stress tolerance and often by the synthesis of cryoprotectants.

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