Purpose: To summarize evidence on the comparative value of amino acid (AA) PET and conventional MRI for prediction of overall survival (OS) in patients with recurrent high grade glioma (rHGG) under bevacizumab therapy.
Methods: Medical databases were screened for studies with individual data on OS, follow-up MRI, and PET findings in the same patient. MRI images were assessed according to the RANO criteria. A receiver operating characteristic curve analysis was used to predict OS at 9 months.
Results: Five studies with a total of 72 patients were included. Median OS was significantly lower in the PET-positive than in the PET-negative group. PET findings predicted OS with a pooled sensitivity and specificity of 76% and 71%, respectively. Corresponding values for MRI were 32% and 82%. Area under the curve and sensitivity were significantly higher for PET than for MRI.
Conclusion: For monitoring of patients with rHGG under bevacizumab therapy, AA-PET should be preferred over RANO MRI.
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http://dx.doi.org/10.1007/s00259-024-06601-4 | DOI Listing |
Background: Abnormal glucose metabolism in AD brains correlates with cognitive deficits. The glucose changes are consistent with brain thiamine (vitamin B1) deficiency. In animals, thiamine deficiency causes multiple AD-like changes including memory loss, neuron loss, brain inflammation, enhanced phosphorylation of tau, exaggerated plaque formation and elevated advanced glycation end products (AGE).
View Article and Find Full Text PDFAlzheimers Dement
December 2024
NYU Grossman School of Medicine, New York, NY, USA.
Background: Non-human primates (NHP) serve as an important bridge for testing therapeutic agents that have been previously shown to be effective in transgenic mouse models. Our earlier published data using an NHP model of sporadic AD-related pathology that develops abundant cerebral amyloid angiopathy (CAA), squirrel monkeys (SQMs), indicates that chronic treatment with TLR9 agonist, class B CpG ODN, safely ameliorates CAA while promoting cognitive benefits. In the present study, we intended to delineate alterations in brain metabolome induced by chronic CpG ODN administration in order to provide further insight into CpG ODN immunomodulatory capabilities.
View Article and Find Full Text PDFGut Microbes
December 2025
MOE/NHC/CAMS Key Lab of Medical Molecular Virology, School of Basic Medical Sciences, & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.
The gut microbiota plays a pivotal role in anxiety regulation through pathways involving neurotransmitter production, immune signaling, and metabolic interactions. Among these, gut-derived serotonin (5-hydroxytryptamine, 5-HT), synthesized from tryptophan metabolism, has been identified as a key mediator. However, it remains unclear whether specific microbial factors regulate tryptophan metabolism to influence 5-HT production and anxiety regulation.
View Article and Find Full Text PDFCurr Top Med Chem
January 2025
Department of Chemistry, REVA University, Rukmini Knowledge Park, Kattigenahalli, Yelahanka, Bangalore-560064, Karnataka, India.
Antibiotics are a revolutionary discovery in modern medicine, enabling the successful treatment of bacterial infections that were once untreatable and deadly. Teixobactin, a "head-toside- chain" cyclodepsipeptide, shows great promise as a lead compound for developing new antibiotics to deal with multi-drug-resistant bacterial infections. The unique pharmacological profile and intriguing structural characteristics of teixobactin, including its unusual amino acid residues (three D-amino acids and L-allo-enduracididine), have drawn the attention of multiple research groups seeking to create new antibiotics with innovative mechanisms.
View Article and Find Full Text PDFFASEB J
January 2025
Department of Hematology, Nephrology, and Rheumatology, Graduate School of Medicine, Akita University, Akita, Japan.
Various tubular diseases in patients with multiple myeloma (MM) are caused by monoclonal immunoglobulin light chains (LCs). However, the physicochemical characteristics of the disease-causing LCs contributing to the onset of MM-associated tubular diseases remain unclear. We herein report a rare case of MM-associated combined tubulopathies: non-crystalline light chain proximal tubulopathy (LCPT) and crystalline light chain cast nephropathy (LCCN).
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