Displaying all 6 publications

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  1. Idris H, Tuzzahra F
    PMID: 37205142 DOI: 10.51866/oa.265
    INTRODUCTION: Depression is one of the mental illnesses that affect adolescents worldwide. This study analysed the factors associated with depressive symptoms among adolescents in Indonesia.

    METHOD: A quantitative cross-sectional study was conducted using secondary data from the Indonesian Family Life Survey 2014. The sample included 3,603 adolescents aged 10-19 years. Data were analysed using logistic regression statistical tests.

    RESULTS: Of the adolescents, 29.1% had depressive symptoms. The bivariate analysis showed that sex, region, economic status, chronic illness history, sleep quality, smoking habit, and personality type were associated with a higher probability of depressive symptoms among the adolescents.

    CONCLUSION: A history of chronic diseases contributes the most to the occurrence of depressive symptoms among adolescents. To reduce the prevalence of chronic diseases associated with depression, the Indonesian government must make preventive efforts through early detection among young people.

  2. Wahab RM, Idris H, Yacob H, Ariffin SH
    Eur J Orthod, 2012 Apr;34(2):176-81.
    PMID: 21478298 DOI: 10.1093/ejo/cjq179
    This prospective study investigated the difference in clinical efficiency between Damon™ 3 self-ligating brackets (SLB) compared with Mini Diamond conventional ligating brackets (CLBs) during tooth alignment in straightwire fixed appliance therapy. Twenty-nine patients (10 males and 19 females), aged between 14 and 30 years, were randomly divided into two groups: 14 patients received the SLB and 15 received the CLB. Upper arch impressions were taken for pre-treatment records (T(0)). A transpalatal arch was soldered to both maxillary first molar bands prior to extraction of the maxillary first premolars, followed by straightwire fixed appliances (0.022 × 0.028 inch). A 0.014 inch nickel titanium (NiTi) wire was used as the levelling and aligning archwire. Four monthly reviews were undertaken and impressions of the upper arch were taken at each appointment (T(1), T(2), T(3), and T(4)). Displacements of the teeth were determined using Little's irregularity index (LII). Data were analysed using the Mann-Whitney U-test. In the aligning stage, the CLB group showed significantly faster alignment of the teeth compared with the SLB group at the T(1)-T(2) interval (P < 0.05). However, there were no differences at T(2)-T(3), and T(3)-T(4) for either group (P > 0.05). The CLB group showed 98 per cent crowding alleviation compared with 67 per cent for the SLB after 4 months of alignment and levelling. Mini Diamond brackets aligned the teeth faster than Damon™ 3 but only during the first month. There was no difference in efficacy between the two groups in the later 3 weeks. Alleviation of crowding was faster with CLB than with SLB.
  3. Bull AT, Idris H, Sanderson R, Asenjo J, Andrews B, Goodfellow M
    Extremophiles, 2018 Jan;22(1):47-57.
    PMID: 29101684 DOI: 10.1007/s00792-017-0976-5
    The data reported in this paper are among the first relating to the microbiology of hyper-arid, very high altitude deserts and they provide base line information on the structure of actinobacterial communities. The high mountain Cerro Chajnantor landscape of the Central Andes in northern Chile is exposed to the world's most intense levels of solar radiation and its impoverished soils are severely desiccated. The purpose of this research was to define the actinobacterial community structures in soils at altitudes ranging from 3000 to 5000 m above sea level. Pyrosequencing surveys have revealed an extraordinary degree of microbial dark matter at these elevations that includes novel candidate actinobacterial classes, orders and families. Ultraviolet-B irradiance and a range of edaphic factors were found to be highly significant in determining community compositions at family and genus levels of diversity.
  4. Asem MD, Salam N, Idris H, Zhang XT, Bull AT, Li WJ, et al.
    Int J Syst Evol Microbiol, 2020 May;70(5):3210-3218.
    PMID: 32320378 DOI: 10.1099/ijsem.0.004158
    The taxonomic status of a Nocardiopsis strain, designated H13T, isolated from a high altitude Atacama Desert soil, was established by using a polyphasic approach. The strain was found to have chemotaxonomic, cultural and morphological characteristics consistent with its classification within the genus Nocardiopsis and formed a well-supported clade in the Nocardiopsis phylogenomic tree together with the type strains of Nocardiopsis alborubida, Nocardiopsis dassonvillei and Nocardiopsis synnematoformans. Strain H13T was distinguished from its closest relatives by low average nucleotide identity (93.2-94.9 %) and in silico DNA-DNA hybridization (52.5-62.4 %) values calculated from draft genome assemblies and by a range of phenotypic properties. On the basis of these results, it is proposed that the isolate be assigned to the genus Nocardiopsis as Nocardiopsis deserti sp. nov. with isolate H13T (=CGMCC 4.7585T=KCTC 49249T) as the type strain.
  5. Md Yusop AH, Alsakkaf A, Noordin MA, Idris H, Nur H, Szali Januddi F
    J Biomed Mater Res B Appl Biomater, 2021 12;109(12):2184-2198.
    PMID: 33983686 DOI: 10.1002/jbm.b.34866
    This work is dedicated to the investigation of drug-release control by a direct effect of degradation from biodegradable metallic surfaces. Degradation behaviors characterized by surface morphology, immersion, and electrochemical techniques demonstrated that curcumin-coated zinc (c-Zn) had a higher degradation rate compared to curcumin-coated Fe (c-Fe). High anodic dissolution rate due to the higher degradation rate and widely extended groove-like degradation structure of c-Zn propelled a higher curcumin release. On the other hand, a slower curcumin release rate shown by c-Fe scaffolds is ascribed to its lower anodic dissolution and to its pitting degradation regime with relatively smaller pits. These findings illuminate the remarkable advantage of different degradation behaviors of degradable metallic surfaces in directly controlling the drug release without the need for external electrical stimulus.
  6. Idris H, Nouioui I, Pathom-Aree W, Castro JF, Bull AT, Andrews BA, et al.
    Antonie Van Leeuwenhoek, 2018 Sep;111(9):1523-1533.
    PMID: 29428970 DOI: 10.1007/s10482-018-1039-3
    The taxonomic position of a novel Amycolatopsis strain isolated from a high altitude Atacama Desert subsurface soil was established using a polyphasic approach. The strain, isolate H5T, was shown to have chemical properties typical of members of the genus Amycolatopsis such as meso-diaminopimelic acid as the diamino acid in the cell wall peptidoglycan, arabinose and galactose as diagnostic sugars and MK-9(H4) as the predominant isoprenologue. It also has cultural and morphological properties consistent with its classification in the genus, notably the formation of branching substrate hyphae which fragment into rod-like elements. 16S rRNA gene sequence analyses showed that the strain is closely related to the type strain of Amycolatopsis mediterranei but could be distinguished from this and other related Amycolatopsis strains using a broad range of phenotypic properties. It was separated readily from the type strain of Amycolatopsis balhymycina, its near phylogenetic neighbour, based on multi-locus sequence data, by low average nucleotide identity (92.9%) and in silico DNA/DNA relatedness values (51.3%) calculated from draft genome assemblies. Consequently, the strain is considered to represent a novel species of Amycolatopsis for which the name Amycolatopsis vastitatis sp. nov. is proposed. The type strain is H5T (= NCIMB 14970T = NRRL B-65279T).
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