نتایج جستجو برای: lung dose
تعداد نتایج: 600310 فیلتر نتایج به سال:
many studies have been performed for treatment or prevention of pulmonary fibrosis. however, no effective treatment has been found yet. the aim of this study was to investigate the effect of grape seed extract on bleomycin-induced lung fibrosis in rat. hydroalcoholic extract of grape seed (vitis vinifera) was prepared using maceration method. nmri rats weighing 250-300 g were given single intra...
Objective(s): Carbon tetrachloride (CCl4) causes pulmonary toxicity. Infliximab (Ib) is a potent inhibitor of tumor necrosis factor-alpha (TNF-α). We aimed to investigate whether Ib has a protective effect on CCl4 induced lung injury. Materials and Methods:Rats were divided into control, CCl4, and CCl4+Ib groups. A single dose of 2 ml/kg CCI4 was administered to CCI4 group and a single dose of...
Background: Vitamin D, especially its most active metabolite 1,25-dihydroxyvitamin D₃(Vit D) is essential in regulating a wide variety of biologic processes, such as regulating mesangial cell activation. The objective of this study was to assess the histopathological changes of effectiveness of Vit D as a protective agent against radiation induced lung injury. Materials and Methods: Eighteen Wi...
following experimental inoculation of 3-week-old turkeys with different titres (106, 104, 103, 102 and 101 egg infectious dose (eid50)) of a/ostrich/italy/984/2000 h7n1 highly pathogenic avian influenza virus (hpaiv), the selected tissues and organs were examined for pathological changes. tissue samples from different organs that obtained from dead and sacrificed birds were fixed in 10% neutral...
The purpose was to evaluate the predictive value of baseline neutrophil to lymphocyte ratio (NLR) level in the incidence of grade 3 or higher radiation induced lung injury (RILI) for lung cancer patients. A retrospectively analysis with 166 lung cancer patients was performed. All of the enrolled patients received chemoradiotherapy at our hospital between April 2014 and May 2016. The Cox proport...
Following experimental inoculation of 3-week-old turkeys with different titres (106, 104, 103, 102 and 101 egg infectious dose (EID50)) of A/ostrich/Italy/984/2000 H7N1 highly pathogenic avian influenza virus (HPAIV), the selected tissues and organs were examined for pathological changes. Tissue samples from different organs that obtained from dead and sacrificed birds were fixed in 10% neutral...
RATIONALE AND OBJECTIVES We aimed to evaluate whether implementation of a low-dose computed tomography (CT)-guided lung biopsy protocol, with the support of individual radiologists in the section, would lead to immediate and sustained decreases in radiation dose associated with CT-guided lung biopsies. MATERIALS AND METHODS A low-dose CT-guided lung biopsy protocol was developed with modifica...
Many studies have been performed for treatment or prevention of pulmonary fibrosis. However, no effective treatment has been found yet. The aim of this study was to investigate the effect of grape seed extract on bleomycin-induced lung fibrosis in rat. Hydroalcoholic extract of grape seed (Vitis vinifera) was prepared using maceration method. NMRI rats weighing 250-300 g were given...
Introduction: In radiation therapy of lung tumors, respiratory motion causes target moving, so a larger margin is needed to cover the clinical target volume (CTV). With the margin increasing, a larger volume of normal tissue will be exposed to high-dose. In this study, dosimetric parameters of normal lung tissue were compared between gated and conventional radiotherapy (RT), u...
Background & Aims: Sulfur mustard (SM) is a potent chemical vesicant warfare agent that remains a significant military and civilian threat. Inhalation of SM gas causes airway and bronchioles inflammation and injury to epithelial tissue of the lung. Hexamethylenetetramine (HMT) has been shown to protect human lung cells against SM toxicity and is effective against phosgene toxicity. The aim of...
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