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Oral carcinogenesis is preceded by oral diseases associated with inflammation such as periodontitis and oral candidiasis, which are contributed by chronic alcoholism, smoking, poor oral hygiene, and microbial infections. Dysbiosis is an imbalance of microbial composition due to oral infection, which has been reported to contribute to oral carcinogenesis. Therefore, in this review, we summarised the role of probiotics, prebiotics, synbiotics, and postbiotics in promoting a balanced oral microbiome, which may prevent oral carcinogenesis due to oral infections. Probiotics have been shown to produce biofilm, which possesses antibacterial activity against oral pathogens. Meanwhile, prebiotics can support growth and increase the benefit of probiotics. In addition, postbiotics possess antibacterial, anticariogenic, and anticancer properties that potentially aid in oral cancer prevention and treatment. The use of probiotics, prebiotics, synbiotics, and postbiotics for oral cancer management is still limited despite their vast potential, thus, discovering their prospects could herald a novel approach to disease prevention and treatment while participating in combating antimicrobial resistance. [ABSTRACT FROM AUTHOR]

This article, published in Chemistry of Natural Compounds, explores the chemical constituents of Lindera subumbelliflora, a species of the Lindera genus. Lindera plants have been used in traditional medicine for various health-related issues and are known to produce diverse secondary metabolites with medicinal properties. The researchers investigated the roots of L. subumbelliflora and identified eight compounds, including 5,6-dehydrokawain, pinostrobin, β-sitosterol, pinocembrin, ferulic acid, quercetin, syringic acid, and 4-hydroxy-3-methoxyacetophenone. These compounds were isolated from L. subumbelliflora for the first time, although some have been previously reported in other Lindera species. The study was funded by the Ministry of Higher Education, Malaysia, and the authors express gratitude to the Fraser's Hill Research Center for plant collection and identification. [Extracted from the article]

This article, published in Chemistry of Natural Compounds, discusses the chemical composition and antibiofilm properties of the essential oil from Syzygium cinereum. The genus Syzygium is a large group of flowering plants that is widely distributed throughout the world. Syzygium cinereum, also known as "pokok jambu air gunung" in Malaysia, is a tree found in montane forest environments and is used in reforestation projects and agroforestry systems. The essential oil from S. cinereum was obtained through hydrodistillation and analyzed using gas chromatography and gas chromatography-mass spectrometry. The major components of the essential oil were pogostol, α-selinene, α-bulnesene, β-selinene, and β-caryophyllene. Pogostol, in particular, has been used in traditional Chinese medicine and has various applications in perfumery, cosmetics, and the pharmaceutical industry. The essential oil also showed promising antibiofilm activity against Candida albicans and Streptococcus mutans. [Extracted from the article]

The article titled "Chemical Composition and Bioactivities of Monocarpia maingayi Essential Oil" provides information on the chemical composition and bioactivities of the essential oil derived from Monocarpia maingayi, a tree found in Borneo, Peninsular Malaysia, and Sumatera. The essential oil was obtained from the leaves of the tree and analyzed using GC-FID and GC-MS. The major components of the oil were globulol, spathulenol, caryophyllene oxide, t-muurolol, and α-cadinol. The essential oil exhibited antifungal activity against Candida albicans and Streptococcus mutans, as well as moderate antioxidant activity. [Extracted from the article]

The article "Chemical Composition and Antioxidant Activity of the Essential Oil of Tabernaemontana dichotoma" provides information on the chemical composition and antioxidant activity of the essential oil derived from Tabernaemontana dichotoma, a shrub or tree found in the wet tropical biome. The essential oil was obtained through hydrodistillation and analyzed using GC-FID and GC-MS. The major components of the oil were sesquiterpene hydrocarbons, with β-caryophyllene being the most dominant component. The essential oil also demonstrated moderate antioxidant activity. This study contributes to the understanding of the chemical properties and potential health benefits of Tabernaemontana dichotoma. [Extracted from the article]