An isotropic expanded Planning Target Volume (PTV) neglects patient's off-axis rotation. This study designs a rotational PTV that is used instead of the standard 3-mm Clinical Target Volume (CTV) expanded PTV in oropharyngeal cancers with the goal to reduce pharyngeal constrictor muscle (PCM) mean dose. 10 patients were retrospectively evaluated. For off-axis rotation, the image was rotated around the longitudinal axis (cervical spinal canal) ± 5 degrees. These new CTVs were combined to form the rotational PTV. The standard and rotational treatment plans were designed with the goal to keep the superior and middle PCM-CTV70 mean dose to less than 50 Gy. There were a 355 cGy reduction in the superior PCM mean dose (form 5332 to 4977 cGy) and a 506 cGy reduction in middle PCM mean dose (from 4185 to 3679 cGy). 60% of patients may have at least a 20% reduction in dysphagia probability based on a Normal Tissue Complication Probability (NTCP) formula. The superior and middle PCM mean dose were reduced to less than 50 Gy in 40 and 20% of cases. There was an association between superior PCM mean dose and overlap volume of PTV70 and superior PCM in both standard (r = 0.92, p = 0.001) and rotational (r = 0.84, p = 0.002) plans. This association was present for middle PCM and PTV70 (r = 0.52, p = 0.02 and r = 0.62, p = 0.006). Rotational PTV can lower the mean dose to superior and middle PCMs, ultimately leading to lower dysphagia rates.
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http://dx.doi.org/10.1007/s00455-021-10341-0 | DOI Listing |
J Ethnopharmacol
January 2025
School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India. Electronic address:
Ethnopharmacological Relevance: Argemone mexicana L. (Papaveraceae), a weed that thrives in the tropical and subtropical areas of South and Central America, Mexico, Caribbean Islands and India. In India, it has been used traditionally to treat vesicular calculus, inflammatory conditions, and hepatobiliary disorders.
View Article and Find Full Text PDFBone
December 2024
State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China. Electronic address:
Endochondral ossification (EO) is a pivotal process during fracture healing and traumatic heterotopic ossification (HO), involving the cartilaginous matrix synthesis and mineralization. Unlike the extracellular matrix, the hyaluronan (HA)-rich pericellular matrix (PCM) directly envelops chondrocytes, serving as the frontline for extracellular signal reception and undergoing dynamic remodeling. Pentraxin 3 (PTX3), a secreted glycoprotein, facilitates HA matrix assembly and remodeling.
View Article and Find Full Text PDFFollowing a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a product consisting of four bacteriophages infecting ser. Gallinarum B/00111, intended for be as a zootechnical additive (functional group: other zootechnical additives) for all poultry species. Bafasal® is proposed for use in water for drinking and liquid complementary feed to guarantee a minimum daily dose of 2 × 10 PFU/bird, to reduce the spp.
View Article and Find Full Text PDFDose Response
December 2024
Department of Clinical Laboratory Science, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Background: is a multipurpose plant known for its remedial properties but the antimicrobial and hepatoprotective activity of its pods remained unexplored.
Objective: This study aimed to evaluate the antimicrobial and hepatoprotective activity of n-hexane (ANPH) and methanol (ANPM) extracts of pods to scientifically validate their medicinal claims.
Methods: After the pharmacognostic evaluation of pods, tests were carried out to estimate phenolic and flavonoid content and antimicrobial potential.
JAMA Intern Med
December 2024
San Francisco VA Health Care System, San Francisco, California.
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