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  1. A Longitudinal Investigation of Posttraumatic Growth and Its Associated Factors among Head and Neck Cancer Survivors
    Hamdan NA, Hamid NA, Iman Leong Bin Abdullah MF
    Psychooncology, 2021 Oct 13.
    PMID: 34647392 DOI: 10.1002/pon.5835
    OBJECTIVES: Posttraumatic growth (PTG) may improve among cancer survivors, but a longitudinal study addressing head and neck cancer (HNC) is lacking. This longitudinal study examined PTG trends and determined the associations of physical symptoms and complications, as well as sociodemographic and tumor characteristics on PTG over time among HNC survivors.

    METHODS: Participants completed the European Organization of Research and Treatment of Cancer's "Quality of Life Questionnaire-Head and Neck 35" module (EORTC-QLQ-H&N-35) and "Posttraumatic Growth Inventory-Short Form" (PTGI-SF) during baseline (T1 ) and follow-up (T2 ; five to seven months post-baseline) assessments.

    RESULTS: In total, 200 HNC participants completed the study and 67.5% of them reported increasing PTG. Physical symptoms and complications that were significantly associated with lower PTG included problems with social contact and the senses. Meanwhile, sociodemographic variables that were significantly associated with PTG were gender (males had lower PTG than females) and religion (Muslims and Buddhists had higher PTG than participants of other religious faith).

    CONCLUSION: Our findings reveal the need to focus on the impact of sensory issues and reduced social contact following HNC on PTG which may be addressed by various restorative and supportive rehabilitation therapy. This article is protected by copyright. All rights reserved.

  2. Current Perspectives of Protein in Bone Tissue Engineering: Bone Structure, Ideal Scaffolds, Fabrication Techniques, Applications, Scopes, and Future Advances
    Aslam Khan MU, Aslam MA, Bin Abdullah MF, Stojanović GM
    ACS Appl Bio Mater, 2024 Aug 19;7(8):5082-5106.
    PMID: 39007509 DOI: 10.1021/acsabm.4c00362
    In view of their exceptional approach, excellent inherent biocompatibility and biodegradability properties, and interaction with the local extracellular matrix, protein-based polymers have received attention in bone tissue engineering, which is a multidisciplinary field that repairs and regenerates fractured bones. Bone is a multihierarchical complex structure, and it performs several essential biofunctions, including maintaining mineral balance and structural support and protecting soft organs. Protein-based polymers have gained interest in developing ideal scaffolds as emerging biomaterials for bone fractured healing and regeneration, and it is challenging to design ideal bone substitutes as perfect biomaterials. Several protein-based polymers, including collagen, keratin, gelatin, serum albumin, etc., are potential materials due to their inherent cytocompatibility, controlled biodegradability, high biofunctionalization, and tunable mechanical characteristics. While numerous studies have indicated the encouraging possibilities of proteins in BTE, there are still major challenges concerning their biodegradability, stability in physiological conditions, and continuous release of growth factors and bioactive molecules. Robust scaffolds derived from proteins can be used to replace broken or diseased bone with a biocompatible substitute; proteins, being biopolymers, provide excellent scaffolds for bone tissue engineering. Herein, recent developments in protein polymers for cutting-edge bone tissue engineering are addressed in this review within 3-5 years, with a focus on the significant challenges and future perspectives. The first section discusses the structural fundamentals of bone anatomy and ideal scaffolds, and the second section describes the fabrication techniques of scaffolds. The third section highlights the importance of proteins and their applications in BTE. Hence, the recent development of protein polymers for state-of-the-art bone tissue engineering has been discussed, highlighting the significant challenges and future perspectives.
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