Spray drying of pharmaceutical compounds with sticky properties is a challenging task and may require substantial time and resources. By including small-scale studies of single droplet drying kinetics a relatively high number of experiments with less material is allowed. This means one can construct a more robust design space according to Quality by Design (QbD) formulation development principles. In the current study we present a case study on the development of spray dried microparticles comprising nicotine bitartrate and hypromellose or alginate polymer, for incorporation into medicated chewing gum. By illustration of initial studies on single droplet drying kinetics, subsequent characterization of microparticles, and final characterization of compressed chewing gum this paper summarizes the entire development process.
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http://dx.doi.org/10.1016/j.ijpharm.2013.04.082 | DOI Listing |
J Int Soc Prev Community Dent
December 2024
Scientific Research Department, Research Group in Dental Sciences, School of Dentistry, Universidad Científica del Sur, Lima, Perú.
Aim: This study aimed to identify factors associated with adolescents' knowledge, practices, and attitudes (KPA-OH) regarding oral health in the Rupa-Rupa district, a high jungle region of Peru.
Materials And Methods: An analytical study was conducted with a sample of 408 adolescents (aged 13-17 years) from seven public schools in the Rupa-Rupa district (elevation: 649 meters above sea level). The sample was stratified by sex, age, and school.
Arch Oral Biol
January 2025
Department of Pediatric Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan. Electronic address:
Objective: This study aimed to investigate the effects of nasal obstruction on the coordinated movement of perioral tissues during mastication using a motion capture system.
Design: Twelve healthy adult participants were instructed to chew gum only on their habitual masticatory side for 30 s, with and without nasal obstruction. Nasal obstruction was induced by blocking nasal breathing with a nose clip.
J Perianesth Nurs
January 2025
Medical Faculty, Department of Anesthesia and Reanimation, Giresun Üniversitesi, Giresun, Türkiye. Electronic address:
Purpose: The aim in the present study was to evaluate the effects of chewing postoperative xylitol gum on gastrointestinal functional recovery after laparoscopic cholecystectomy.
Design: A three-arm randomized controlled trial.
Methods: After a baseline assessment, participants were randomly assigned in three groups.
Pharmaceutics
December 2024
Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
For several decades, protein drugs (biologics) made in cell cultures have been delivered as sterile injections, decreasing their affordability and patient preference. Angiotensin Converting Enzyme 2 (ACE2) gum is the first engineered human blood protein expressed in plant cells approved by the FDA without the need for purification and is a cold-chain and noninvasive drug delivery. This biologic is currently being evaluated in human clinical studies to debulk SARS-CoV-2 in the oral cavity to reduce coronavirus infection/transmission (NCT00543318).
View Article and Find Full Text PDFReprod Toxicol
January 2025
Developmental Biology Laboratory, Department of Morphology and Genetic, Federal University of Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil. Electronic address:
Nicotine is one of the most toxic substances found in cigarettes, but also found in chewing tobacco gum, patches and vaping products (electronic cigarettes). In addition to being a highly addictive chemical, it is capable of reducing fertility in men and women. In the ovaries, it can induce morphological changes and impair the formation of follicles, being a possible cause of changes in the reproductive cycle and anticipation of menopause in women whose mothers smoked during pregnancy.
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