Publications by authors named "D E Mohamad Haron"

Background: Pembrolizumab monotherapy for non-small-cell lung cancer (NSCLC) expressing PD-L1 ≥ 50% doubles five-year survival rates compared to chemotherapy. However, immune-related adverse events (irAEs) can cause severe, long-term toxicity necessitating high-dose steroids and/or treatment cessation. Interestingly, patients experiencing irAEs demonstrate better survival outcomes.

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Multiclass of endocrine disrupting chemicals (EDCs) such as nine perfluoroalkyl and polyfluoroalkyl substances (PFAS), five bisphenols, and four parabens were analysed in tap water samples from Malaysia's Klang Valley region. All samples were analysed using liquid chromatography mass tandem spectrometry (LC-MS/MS) with limit of quantitation (LOQ) ranged between 0.015 and 5 ng/mL.

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Article Synopsis
  • Bisphenol analogues are commonly found in the environment due to widespread use and poor processing methods, raising concerns about health and environmental risks.
  • The study utilized solid phase extraction and LC-MS/MS to analyze bisphenol levels in surface water from Port Dickson and Lukut, finding concentrations ranging from 1.32 ng/L to 1890.51 ng/L.
  • The results indicated that BPF had the highest mean concentration of 1143.88 ng/L, posing the greatest risk, while BPA and BPS showed lower concentrations and risks, highlighting potential future water quality issues.
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In toxicological analysis, the analytical validation method is important to assess the exact risk of contaminants of emerging concern in the environment. Syringe filters are mainly used to remove impurities from sample solutions. However, the loss of analyte to the syringe filter could be considerable, causing an underestimate of the analyte concentrations.

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Background And Objective: Oxycodone, a semisynthetic thebaine derivative µ-opioid (MOP) receptor agonist, is effective for treating moderate and severe pain in different clinical conditions. The pharmacokinetics of intravenous oxycodone in the obese population has not been studied. This study aims to characterize the pharmacokinetic profile of oxycodone after intravenous administration and to simulate an appropriate dosage for analgesic efficacy in obese patients.

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