Publications by authors named "J Haist"

The experiences of cross-border workers (CBWs) and the difficulties they face during the ongoing COVID-19 pandemic have been neglected in previous research. CBWs experience various stressors under normal circumstances, where they are often subjected to unequal working conditions and forced to transition between two different societies. The measures that were introduced in response to the COVID-19 pandemic, including the implementation of physical borders, further worsened the situation for these individuals.

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The second messenger bis-3,5-cyclic di-guanosine monophosphate (c-di-GMP) determines when Streptomyces initiate sporulation. c-di-GMP signals are integrated into the genetic differentiation network by the regulator BldD and the sigma factor σ . However, functions of the development-specific diguanylate cyclases (DGCs) CdgB and CdgC, and the c-di-GMP phosphodiesterases (PDEs) RmdA and RmdB, are poorly understood.

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Article Synopsis
  • The transition from vegetative growth to spore production in antibiotic-producing organisms is regulated by the signaling molecule c-di-GMP, which controls key developmental genes through the master regulator BldD.
  • A detailed study of all 10 proteins that influence c-di-GMP levels has shown that CdgB and RmdB are the most abundant within this group.
  • Genetic analysis revealed that the DGC CdgC is active, and disrupting certain DGCs enhances sporulation while disrupting PDEs delays development, with key proteins being conserved across multiple species in the genus.
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Background: Probiotics are extensively used to promote gastrointestinal health, and emerging evidence suggests that their beneficial properties can extend beyond the local environment of the gut. Here, we determined whether oral probiotic administration can alter the progression of postinfarction heart failure.

Methods And Results: Rats were subjected to 6 weeks of sustained coronary artery occlusion and administered the probiotic Lactobacillus rhamnosus GR-1 or placebo in the drinking water ad libitum.

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The obesity-related 16 kDa peptide leptin is synthesized primarily in white adipocytes although its production has been reported in other tissues including the heart. There is emerging evidence that leptin may contribute to cardiac pathology especially that related to myocardial remodelling and heart failure. In view of the importance of mitochondria to these processes, the goal of the present study is to determine the effect of leptin on mitochondria permeability transition pore opening and the potential consequence in terms of development of apoptosis.

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