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Methylenetetrahydrofolate Reductase (MTHFR) Variants and Severe Capecitabine Toxicity: A Case Report and Review of Literature.
Cureus
December 2024
Oncology, Qiannan People's Hospital, Duyun, CHN.
Capecitabine is an oral prodrug metabolized into 5-fluorouracil (5-FU) and serves as a representative anticancer agent. While fluoropyrimidine treatment is usually well-tolerated, a subset of patients unfortunately experiences severe and sometimes life-threatening toxicity related to these compounds. This adverse reaction is frequently attributed to partial or complete deficiencies in the dihydropyrimidine dehydrogenase (DPD) enzyme.
View Article and Find Full Text PDFQuality of life and functional outcomes in patients with locally advanced rectal cancer receiving total neoadjuvant therapy versus concurrent chemoradiotherapy: An analysis of the XXX trial.
Int J Radiat Oncol Biol Phys
January 2025
State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China; Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Shenzhen, China. Electronic address:
Objective: To explore differences in the effects of total neoadjuvant therapy (TNT) and preoperative concurrent chemoradiotherapy (CRT) on quality of life and functional outcomes in patients with locally advanced rectal cancer.
Methods: In the study, 591 patients with distal or middle-third, clinical primary tumor stage cT3-4 and/or regional lymph node-positive rectal cancer were randomly assigned (1:1) to receive short-term radiotherapy (25 Gy in five fractions) followed by 4 cycles of CAPOX (TNT group, n=297) or standard concurrent chemoradiotherapy (50 Gy in 25 fractions concurrently with oral capecitabine) (CRT group, n=294) before surgery. After a 6-year follow-up, the surviving patients were sent surveys, including the EORTC QLQ-C30, EORTC QLQ-CR29, and Wexner incontinence score questionnaires.
Elevated Troponin T (TnT) in Non-acute Coronary Syndrome (ACS) Due to Dermatomyositis.
Cureus
December 2024
Cardiology, King Khalid University Hospital, Riyadh, SAU.
Troponin is a highly specific biomarker for myocardial injury. It plays a critical role in the diagnosis of acute coronary syndrome (ACS). However, elevated troponin levels are not exclusively due to cardiac ischemia and may be observed in many non-cardiac conditions, including inflammatory myopathies.
View Article and Find Full Text PDFDifferential expression of osteoblast-like cells on self-organized titanium dioxide nanotubes.
J Dent Sci
December 2024
Division for Globalization Initiative, Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan.
Background/purpose: Titanium dioxide nanotube (TNT) structures have been shown to enhance the early osseointegration of dental implants. Nevertheless, the optimal nanotube diameter for promoting osteogenesis remains unclear due to variations in cell types and manufacture of nanotubes. This study aimed to evaluate the differences in MC3T3-E1 and Saos-2 cells behavior on nanotubes of varying diameters.
View Article and Find Full Text PDFThe substituent effect on the heat-induced pyrolysis mechanism of energetic materials: a case of reactive molecular dynamics simulations on nitrobenzene compounds.
Phys Chem Chem Phys
January 2025
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China.
The initial decomposition reactions of 1,3,5-trinitrobenzene (TNB), picric acid (PA), 2,4,6-trinitrotoluene (TNT), 2,4,6-trinitroaniline (TNA) and 2,4,6-trinitrophenylmethylnitramine (Tetryl) were studied using ReaxFF-lg molecular dynamics simulations, and the substituent effect on the thermal decomposition behaviours of nitrobenzene compounds was evaluated through the reactant number, initial decomposition pathway, products and cluster analysis. The results show that the introduction of substituents could promote the decomposition of the reactants, increase the frequency of the nitro-nitrito isomerization reaction and intermolecular H or O atom transfer reaction, and reduce the frequency of the direct nitro dissociation reaction. Notably, these effects were most obvious in the case of TNT.
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