Publications by authors named "L A Lammers"

Article Synopsis
  • The study examines how impaired liver function affects the toxicity of the anticancer drug paclitaxel, specifically focusing on hematological complications, dose modifications, and overall survival rates in cancer patients.
  • It analyzes data from 569 patients treated at the University Medical Centre Utrecht between 2011 and 2022, comparing those with normal and impaired liver function based on specific medical criteria.
  • Results show that patients with liver impairment experienced significantly higher risks of severe neutropenia and leukopenia, required more dose modifications, and had poorer overall survival in cases of inoperable esophageal and advanced ovarian cancers.
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Introduction: In rheumatoid arthritis (RA), immunosuppressive therapies may achieve symptomatic relief, but do not induce long-term, drug-free remission. Meanwhile, the lifelong use of immunosuppressive drugs confers increased risk for malignancy and infections. As such, there is an unmet need for novel treatments that selectively target the pathogenic immune response in RA by inducing tolerance to autoantigens.

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Purpose: The purpose of this paper is to compile and present all of the reported vascular complications that resulted from common non-vascular abdominal procedures in the literature. Non-vascular procedures include, though are not limited to, percutaneous abscess/fluid collection drainage (PAD), percutaneous nephrostomy (PN), paracentesis, percutaneous transhepatic cholangiography (PTC)/percutaneous biliary drainage (PBD), percutaneous biliary stone removal, and percutaneous radiologic gastrostomy (PG)/percutaneous radiologic gastrojejunostomy (PG-J). By gathering this information, radiologists performing these procedures can be aware of the associated vascular injuries, as well as take steps to minimize risks.

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Article Synopsis
  • Microtubule motor cytoplasmic dynein requires a specific complex assembly involving dynein, dynactin, and adapter proteins for effective transport within cells.
  • Initial assumptions about the interaction between dynein and dynactin have been challenged by new cryo-EM structures that did not confirm earlier findings, suggesting a more complex relationship.
  • The study identifies the N-terminus of the dynein intermediate chain as a crucial site for binding both dynactin and Ndel1, indicating the importance of a sequential process in dynein activation that involves multiple proteins like LIS1.
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Article Synopsis
  • LIS1 is a crucial regulator of the motor protein dynein, impacting its functionality and location within cells by influencing its binding to microtubules.
  • Mutant dynein variants were created to analyze how binding to LIS1 is affected by whether dynein is attached to microtubules or not, showing that specific configurations of dynein lead to different affinities for LIS1.
  • Structural studies using cryo-EM demonstrated that binding to microtubules causes changes in dynein's shape, which play a key role in how LIS1 activates dynein's motor function.
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