N-acetylcysteine (NAC) is a drug  used  widely and effectively in oral  and  ‎intravenous  forms  as  a  specific  antidote  for acetaminophen poisoning.  In children ‎considering the toxic dose of acetaminophen ingested by the patient and the body weight, the ‎physician prescribes a specific dose of NAC. There is always a risk of  iatrogenic overdose of  ‎NAC  which can cause different mild to...

N-acetylcysteine (NAC) is a drug  used  widely and effectively in oral  and  ‎intravenous  forms  as  a  specific  antidote  for acetaminophen poisoning.  In children ‎considering the toxic dose of acetaminophen ingested by the patient and the body weight, the ‎physician prescribes a specific dose of NAC. There is always a risk of  iatrogenic overdose of  ‎NAC  which can cause different mild to...

background: besides the well-known adverse effects of valproate (vpa), disorders related to male reproductive functions have been reported. furthermore, only a limited number of previous studies have reported the relationship between vpa dose and impairment of the hormonal axis and semen quality. a patient with reversible changes that occurred in the sperm parameters after a dose increment of v...

Introduction: The ability of quadratic dose protocol to maintain a good quality image for an overweight and obese patient is well reported. However, a practical approach to the implementation of this protocol in whole-body imaging in Malaysia is currently lacking. Hence, the aim of this study is to derive the quadratic dose formula that suits our PET system. Metho...

Background: With the introduction of computed tomography in diagnostic radiology a new and fundamentally different imaging modality has become available. Meanwhile, it is clear that the absorbed doses by the patients during CT were relatively high in comparison with those of other diagnostic radiology techniques. The aim of this survey was to determine the average absorbed dose in Yazd provin...

Pembrolizumab, a potent antibody against programmed death 1 (PD-1) receptor, has shown robust antitumor activity and manageable safety in patients with advanced solid tumors. Its pharmacokinetic (PK) properties were analyzed with population PK modeling using pooled data from the KEYNOTE-001, -002, and -006 studies of patients with advanced melanoma, non-small cell lung cancer (NSCLC), and other...

Introduction: Concurrent chemoradiotherapy (CRT) is a standard treatment method for patients with carcinoma of cervix. Despite admirable therapeutic results, acute hematologic toxicity (HT) is common with this regimen. Many studies evaluate the relationship between the bone marrow dosimetric parameters and the severity of HT and result shown that the low dose of bone marrow wou...

Background: Megavoltage beams used in radiotherapy are contaminated with secondary electrons. Different parts of linac head and air above patient act as a source of this contamination. This contamination can increase damage to skin and subcutaneous tissue during radiotherapy. Monte Carlo simulation is an accurate method for dose calculation in medical dosimetry and has an important role in opt...

Introduction: In 2000, the UNSCEAR reported that CT constitutes 5% of all the medical x-ray  examinations and it contributes 34% of the resultant collective dose worldwide. Children are more  sensitive to the ionizing radiations than adults. So, routine quality control tests are expected to be  carried out periodically on the CT scanners. The aim of this research was to estimate the effective  ...

Quantitative model-based analyses are helpful to support decision-making in drug development. In oncology, disease progression/clinical outcome (DPCO) models have been used for early predictions of clinical outcome, but most of such approaches did not include adverse events or dose intensity. In addition, cost-effectiveness evaluations of investigational compounds are becoming increasingly impo...