Displaying all 9 publications

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  1. Bakar NSA, Manual A, Hamid JA
    Malays J Med Sci, 2019 Jul;26(4):79-85.
    PMID: 31496896 MyJurnal DOI: 10.21315/mjms2019.26.4.9
    Background: Equity is one of the important aspects of universal health coverage. Variation in socioeconomic status (SES) has been proved to contribute discrepancies in the use of healthcare services. This study aimed to assess equity for inpatient, outpatient and dental care utilisation by household SES over time.

    Methods: This study used five series of National Health and Morbidity Survey data from 1986 to 2015. Healthcare utilisation for inpatient, outpatient and dental care were analysed. SES was grouped based on household expenditure variables accounting for total number of adults and children in the household using consumption per adult equivalents approach. The determination of healthcare utilisation across the SES segments was measured using concentration index.

    Results: The overall distribution of inpatient utilisation tended towards the pro-poor, although only data from 1996 (P-value = 0.017) and 2006 (P-value = 0.021) were statistically significant (P < 0.05). Out-patient care showed changing trends from initially being pro-rich in 1986 (P < 0.05), then gradually switching to pro-poor in 2015 (P < 0.05). Dental care utilisation was significantly pro-rich throughout the survey period (P < 0.05). Public providers mostly showed significantly pro-poor trends for both in- and out-patient care (P < 0.05). Private providers, meanwhile, constantly showed a significantly pro-rich (P < 0.05) trend of utilisation.

    Conclusion: Total health utilisation was close to being equal across SES throughout the years. However, this overall effect exhibited inequities as the effect of pro-rich utilisation in the private sector negated the pro-poor utilisation in the public sector. Strategies to improve equity should be consistent by increasing accessibility to the private sectors, which has been primarily dominated by the richest population.

  2. Yaacob HB, Mahfuz Ali MA, Hamid JA
    Med J Malaysia, 1983 Jun;38(2):118-20.
    PMID: 6621440
    Two cases of oral speckled leukoplakia with differing behaviour are presented. This precancerous lesion of unknown aetiology requires early diagnosis for proper management. Candida albicans are frequently found in these lesions. The significance of epithelial dysplasia in relation to treatment is discussed. Surgical removal is the treatment of choice.
  3. Kansal I, Khullar V, Sharma P, Singh S, Hamid JA, Santhosh AJ
    Sci Rep, 2025 Feb 12;15(1):5157.
    PMID: 39934192 DOI: 10.1038/s41598-024-84922-y
    Early detection of ocular diseases is vital to preventing severe complications, yet it remains challenging due to the need for skilled specialists, complex imaging processes, and limited resources. Automated solutions are essential to enhance diagnostic precision and support clinical workflows. This study presents a deep learning-based system for automated classification of ocular diseases using the Ocular Disease Intelligent Recognition (ODIR) dataset. The dataset includes 5,000 patient fundus images labeled into eight categories of ocular diseases. Initial experiments utilized transfer learning models such as DenseNet201, EfficientNetB3, and InceptionResNetV2. To optimize computational efficiency, a novel two-level feature selection framework combining Linear Discriminant Analysis (LDA) and advanced neural network classifiers-Deep Neural Networks (DNN), Long Short-Term Memory (LSTM), and Bidirectional LSTM (BiLSTM)-was introduced. Among the tested approaches, the "Combined Data" strategy utilizing features from all three models achieved the best results, with the BiLSTM classifier attaining 100% accuracy, precision, and recall on the training set, and over 98% performance on the validation set. The LDA-based framework significantly reduced computational complexity while enhancing classification accuracy. The proposed system demonstrates a scalable, efficient solution for ocular disease detection, offering robust support for clinical decision-making. By bridging the gap between clinical demands and technological capabilities, it has the potential to alleviate the workload of ophthalmologists, particularly in resource-constrained settings, and improve patient outcomes globally.
  4. Harwansh RK, Hamid JA, Wal P, Deshmukh R, Patra PK, Gasmi A
    Curr Pharm Des, 2025 Feb 27.
    PMID: 40017252 DOI: 10.2174/0113816128334659241223113743
    OBJECTIVE OF THE STUDY: This review aims to critically analyze the scope for targeting drugs towards the treatment of improving outcomes in PDAC, focusing on DNA repair inhibitors, antiangiogenic therapy, inhibitors of the KRAS pathway, anti-stromal, and nanoparticle-based therapy.

    MATERIALS AND METHODS: A critical review of preclinical and clinical studies was conducted to summarize the therapeutic interventions that target specific mutations in PDAC, components of the tumor microenvironment, and drug delivery systems, especially nanotechnology, to enhance targeting and efficacy.

    RESULTS: Inhibitors and nanotechnology-based targeted therapies have reported promise in preclinical models: drug delivery is enhanced with the loss of PDAC resistance mechanisms. Formulations and combinations targeting KRAS as well as other pathways point toward improved drug delivery over 'orthodox' treatment approaches.

    CONCLUSION: This review concludes that although improvement in therapies for PDAC has incrementally been proven in recent literature, however, more research is expected to enhance these approaches so that they can be applied appropriately at the clinical stage. In future studies, it is expected to optimize treatment combinations, address mechanisms of resistance, and improve the delivery of drugs.

  5. Hossain MK, Islam MA, Uddin MS, Paramasivam P, Hamid JA, Alshgari RA, et al.
    Sci Rep, 2024 Dec 03;14(1):30142.
    PMID: 39627336 DOI: 10.1038/s41598-024-81797-x
    In this work, CsPb.625Zn.375IBr2-based perovskite solar cells (PSCs) are numerically simulated and optimized under ideal lighting conditions using the SCAPS-1D simulator. We investigate how various hole transport layers (HTL) including Zn3P2, PTAA, MoS2, MoO3, MEH-PPV, GaAs, CuAlO2, Cu2Te, ZnTe, MoTe2, CMTS, CNTS, CZTS, CZTSe and electron transport layers (ETL) such as CdS, SnS2, ZnSe, PC60BM interact with the devices' functionality. Following HTL material optimization, a maximum power conversion efficiency (PCE) of 16.59% was observed for the FTO/SnS2/CsPb.625Zn.375IBr2/MoS2/Au structure, with MoS2 proving to be a more economical option. The remainder of the investigation is done following the HTL optimization. We study how the performance of the PSC is affected by varying the materials of the ETL and to improve the PCE of the device, we finally optimized the thickness, charge carrier densities, and defect densities of the absorber, ETL, and HTL. In the end, the optimized arrangement produced a VOC of 0.583 V, a JSC of 43.95 mA/cm2, an FF of 82.17%, and a PCE of 21.05% for the FTO/ZnSe/CsPb.625Zn.375IBr2/MoS2/Au structure. We also examine the effects of temperature, shunt resistance, series resistance, generation rate, recombination rate, current-voltage (JV) curve, and quantum efficiency (QE) properties to learn more about the performance of the optimized device. At 300 K, the optimized device provides the highest thermal stability. Our research shows the promise of CsPb.625Zn.375IBr2-based PSCs and offers insightful information for further development and improvement.
  6. Saadh MJ, Hamid JA, H M, Kazmi SW, Ahmed MH, Sharma A, et al.
    Pathol Res Pract, 2025 Feb;266:155810.
    PMID: 39798234 DOI: 10.1016/j.prp.2025.155810
    Colorectal cancer (CRC) is globally ranked as the third leading cause of cancer-related deaths in both men and women. There is an urgent need for novel biomarkers to facilitate early diagnosis and enhance patient care, thereby improving treatment response and reducing mortality rates. Signal transducer and activator of transcription 3 (STAT3) is essential for controlling the anti-tumor immune response since it is a hub for several oncogenic signaling pathways. In the tumor environment, STAT3 is widely overactivated in both malignant and non-cancerous cells. It is involved in suppressing the expression of critical immune activation regulators and encouraging the synthesis of immunosuppressive substances. Long noncoding RNAs (lncRNAs), a kind of non-coding RNA, are critical for CRC development, apoptosis, and metastasis because they influence important signaling pathways such as STAT3 signaling and contribute to gene regulation at the epigenetic, transcriptional, and post-transcriptional levels. Moreover, lncRNAs have a significant role in modifying the TME and control the expression of important immunological checkpoints, such as PD-L1. Therefore, a comprehensive understanding of the regulatory roles of lncRNAs is crucial for identifying diagnostic, prognostic, and predictive biomarkers for CRC. Thus, the objective of the present review study is to provide a comprehensive overview of the interaction between the STAT3 signaling pathway and various lncRNAs, as well as their implications for apoptosis, metastasis, and immune evasion in CRC.
  7. Al-Qaaneh AM, Abosaoda MK, Baldaniya L, Hamid JA, Sabarivani A, Panigrahi R, et al.
    Comput Biol Chem, 2025 Apr;115:108369.
    PMID: 39899941 DOI: 10.1016/j.compbiolchem.2025.108369
    The study employs density functional theory (DFT) to examine the drug-loading efficiency of graphyne (GYN) as a vehicle for the Tioguanine (TG) drug. The researchers analyzed the interaction energy, electrical properties of pure GYN, TG molecules, and TG@GYN complex to determine their effectiveness as a carrier. Configuration a, which utilized nitrogen and sulfur atoms in interactions, was deemed the most suitable among the three considered TG sites. Gas-phase interaction between TG drug and GYN resulted in an energy of adsorption about -1.64 eV. The study utilized non-covalent interaction (NCI) analysis to assess the interaction between GYN and TG drug, indicating weak forces of interaction in the TG@GYN complex. The HOMO-LUMO and charge-decomposition analysis described the transfer of charge from TG molecules to pure GYN during formation of TG@GYN. The results suggest that GYN could function as a promising candidate for carrying and delivering TG drug, leading to further research into similar 2D nanomaterials for drug transport applications.
  8. Saadh MJ, Hamid JA, H M, Kazmi SW, Omar TM, Sharma A, et al.
    Exp Cell Res, 2025 Mar 19.
    PMID: 40118265 DOI: 10.1016/j.yexcr.2025.114531
    Breast cancer, a highly prevalent form of cancer worldwide, has observed a steady increase in its prevalence over the past few decades. This rise can be attributed to the complex nature of the disease, characterized by its heterogeneity, ability to metastasize, and resistance to various treatment. In the field of cancer research, long non-coding RNAs (lncRNAs) are of special interest, which play an important role in the development and progression of various tumors, including breast cancer. LncRNAs affect the tumor microenvironment by attracting diverse immunosuppressive factors and controlling the differentiation of immune cells, often referred to as myeloid and lymphoid cells, which contributes to immune escape of tumor cells. Among the lncRNA families, the small nucleolar RNA host gene (SNHG) family has been found to be dysregulated in breast cancer. These SNHGs have been implicated in crucial cellular processes such as cell proliferation, invasion, migration, resistance to therapies, apoptosis, as well as immune cell regulation and differentiation. Consequently, they have great potential as diagnostic and prognostic biomarkers as well as potential therapeutic targets for breast cancer. In this comprehensive review, we aim to summarize the recent advances in the study of SNHGs in breast cancer pathogenesis and their role in regulating the activity of immune cells in the tumor microenvironment through affecting SNHGs/miRNA/mRNA pathways, with the aim of providing new insights into the treatment of breast cancer.
  9. Saadh MJ, Ahmed HH, Chandra M, Al-Hussainy AF, Hamid JA, Mishra A, et al.
    Cancer Cell Int, 2025 Feb 24;25(1):66.
    PMID: 39994659 DOI: 10.1186/s12935-025-03694-1
    OBJECTIVE: Oral malignancies are among the common head and neck cancers. Various therapeutic modalities are used for targeting oral cancers. It was shown that quercetin (a flavonoid) has an anti-cancer effect on different cancers. In the current study, the anti-cancer potentials of quercetin against oral cancer cells were summarized.

    METHODS: The current systematic review was conducted in accordance with the PRISMA guideline for the identification of relevant studies in various electronic databases up to April 2023. After reviewing and screening 193 articles, 18 were chosen for this study based on our inclusion and exclusion criteria.

    RESULTS: It was shown that quercetin significantly reduced cancer cell proliferation, cell viability, tumor volume, invasion, metastasis and migration. This anti-cancer agent induced oxidative stress and apoptosis in the cancer cells. Quercetin treatment could also induce some biochemical alterations in the cancer cells.

    CONCLUSION: According to the results, it can be mentioned that quercetin administration has an anti-cancer effect against oral cancer cells. This agent exerts its anticancer effects via reduced cell viability and different mechanisms, including induce oxidative damage, apoptosis, and reduced invasion and metastasis. However, suggesting the use of quercetin as a therapeutic agent of oral cancer patients requires further clinical studies due to its poor absorption rates, and the exact molecular mechanisms are still not well understood.

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