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  1. Optimal early surgery timing for congenital diaphragmatic hernia: A systematic review
    Poerwosusanta H, Aditia D, Gunadi, Halim PG, Yuliana M
    Med J Malaysia, 2024 Aug;79(Suppl 4):77-82.
    PMID: 39215420
    INTRODUCTION: Congenital diaphragmatic hernia (CDH) is a failure of closure of the pleuro-peritoneal canal due to faulty embryogenesis caused herniation of intra-abdominal contents into the chest. There needs to be more clarity about the optimal surgical timing for CDH. The aim of this study is to determine the optimal surgical timing for CDH using a systematic review analysis.

    MATERIALS AND METHODS: Our study used the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) 2020. The literature search approach used publications between 2013 and 2023 using Pubmed and SagePub databases. Studies were included if they contained reports of the best timing for emergency surgery for CHD repair. We did not include review articles and unpublished data.

    RESULTS: Five articles met the criteria. The overall result, the first pre-operative 24-hour oxygenation index mean, was temporally reliable and representative (intraclass correlation coefficient = 0.70, 95% CI = 0.61-0.77). Within any severity level, there were no differences in 90-day survival or mortality rate between delayed repair and early repair (p = 0.002). As a result, there is no optimal timing for surgery in severe cases of CDH. A delay in repair did not predict an increased risk of death, nor did it suggest an increased need for post-operative extracorporeal membrane oxygen therapy.

    CONCLUSION: Regardless of the severity of the illness, the timing of CDH repair does not affect the mortality rate.Surgery is done after the physiology index achievement.

  2. Jackfruit peel cellulose nanocrystal - Alginate hydrogel for doripenem adsorption and release study
    Nyoo Putro J, Soetaredjo FE, Santoso SP, Irawaty W, Yuliana M, Wijaya CJ, et al.
    Int J Biol Macromol, 2024 Feb;257(Pt 1):128502.
    PMID: 38040139 DOI: 10.1016/j.ijbiomac.2023.128502
    As a natural raw material to replace synthetic chemicals, cellulose and its derivatives are the most popular choices in the pharmaceutical industry. For drug delivery applications, cellulose is usually used as a cellulose nanocrystal (CNC). CNC-based hydrogels are widely utilized for drug delivery because drug molecules can be encapsulated in their pore-like structures. This study aims to develop CNC hydrogels for the delivery of doripenem antibiotics. CNC was obtained from jackfruit peel extraction, and alginate was used as a network polymer to produce hydrogels. Ionotropic gelation was used in the synthesis of CNC-alginate hydrogel composites. The maximum adsorption of doripenem by CNC was 65.7 mg/g, while the maximum adsorption by CNC-alginate was 98.4 mg/g. One of the most challenging aspects of drug delivery is predicting drug release from a solid matrix using simple and complex mathematical equations. The sigmoidal equation could represent the doripenem release from CNC, while the Ritger-Peppas equation could describe the doripenem release from CNC-Alginate. The biocompatibility testing of CNC and CNC-alginate against a 7F2 cell line indicates that both materials were non-toxic.
  3. Fulltext Nanocelluloses: Sources, Pretreatment, Isolations, Modification, and Its Application as the Drug Carriers
    Lunardi VB, Soetaredjo FE, Putro JN, Santoso SP, Yuliana M, Sunarso J, et al.
    Polymers (Basel), 2021 Jun 23;13(13).
    PMID: 34201884 DOI: 10.3390/polym13132052
    The 'Back-to-nature' concept has currently been adopted intensively in various industries, especially the pharmaceutical industry. In the past few decades, the overuse of synthetic chemicals has caused severe damage to the environment and ecosystem. One class of natural materials developed to substitute artificial chemicals in the pharmaceutical industries is the natural polymers, including cellulose and its derivatives. The development of nanocelluloses as nanocarriers in drug delivery systems has reached an advanced stage. Cellulose nanofiber (CNF), nanocrystal cellulose (NCC), and bacterial nanocellulose (BC) are the most common nanocellulose used as nanocarriers in drug delivery systems. Modification and functionalization using various processes and chemicals have been carried out to increase the adsorption and drug delivery performance of nanocellulose. Nanocellulose may be attached to the drug by physical interaction or chemical functionalization for covalent drug binding. Current development of nanocarrier formulations such as surfactant nanocellulose, ultra-lightweight porous materials, hydrogel, polyelectrolytes, and inorganic hybridizations has advanced to enable the construction of stimuli-responsive and specific recognition characteristics. Thus, an opportunity has emerged to develop a new generation of nanocellulose-based carriers that can modulate the drug conveyance for diverse drug characteristics. This review provides insights into selecting appropriate nanocellulose-based hybrid materials and the available modification routes to achieve satisfactory carrier performance and briefly discusses the essential criteria to achieve high-quality nanocellulose.
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