Browse publications by year: 2025

  1. Algin S, Sajib MWH, Ahmed SN, Siddique MR, Reza MM, Tanzilla NJ, et al.
    Cureus, 2025 Feb;17(2):e79667.
    PMID: 40017580 DOI: 10.7759/cureus.79667
    Introduction Obsessive-compulsive disorder (OCD) is a persistent psychiatric condition that causes significant clinical and functional impairments. Recent research suggests a link between deficiencies in micronutrients, particularly vitamin B12, folic acid, and elevated homocysteine, and the development of OCD. This study investigates the blood levels of these micronutrients and their relationship to OCD severity, with an emphasis on potential gender differences. Methods This cross-sectional study included 300 drug-free OCD patients. Serum levels of vitamin B12, folic acid, and homocysteine were measured using established biochemical methods. The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) was used to assess clinical severity. Data were examined to determine relationships between micronutrient levels and OCD severity and differences between male and female patients. Results This study found that women had higher levels of vitamin B12 (405.3 ± 15.1 vs. 360.4 ± 14.3) and folic acid (7.18 ± 0.27 vs. 5.76 ± 0.25) but lower levels of homocysteine (9.35 ± 0.64 vs. 14.4 ± 0.60) compared to men. Higher folic acid levels were linked to study participants having higher levels of education (at a college or university, where subjects are studied at an advanced level) compared to those with primary-level education. Lower vitamin B12 levels were linked to family mental health history and noncommunicable diseases. Women exhibited lower levels of substance use but higher rates of self-harm and suicide attempts. Elevated homocysteine levels were linked to longer illness duration and more severe OCD symptoms. Conclusion These findings suggest that imbalances in micronutrients, particularly vitamin B12, folic acid, and homocysteine, may contribute to OCD severity and treatment resistance. Gender-specific variations in micronutrient levels could provide valuable insights into personalized OCD therapy choices. Further longitudinal studies are needed to understand these relationships and their potential as therapeutic targets.
  2. Raya SA, Saaid IM, Mohshim DF, A Razak AA
    RSC Adv, 2025 Feb 26;15(9):6506-6517.
    PMID: 40017648 DOI: 10.1039/d5ra00177c
    The most used technique for controlling high water production in mature oil fields is conformance control agent with high swelling behavior and stability. However, conformance control destabilization often occurs from particle aggregation leading to particle migration (creaming or sedimentation). Coalescence or cluster formation at an early stage of conformance control is crucial for increasing thermal stability and enhancing formulations. The objective of this study was to characterize the colloidal dispersion stability of grafted zeolite copolymers to assess its use as potential conformance control in carbonate reservoirs. In this study, grafting form of bentonite, acrylamide (AM), 2-acrylamino-2-methylpropanesulfonic acid (AMPS), zeolites with anionic surfactants (Sodium Dodecyl Sulphate, SDS) and nonionic surfactants (Span 80 and Tween 80) were prepared. Stability during multiple light scattering analysis of grafted bentonite with and without modification were observed and compared through Turbiscan Classic MA 2000. The results revealed that the multiple light scattering analysis and colloidal dispersion stability all reflect the stability system of the grafted bentonite. Indeed, the multiple light scattering analysis was able to be used to derive the stability for graft zeolite copolymers and showed good agreement with the results from turbidity. The addition of zeolites combined with Span 80 and Tween 80 was observed to enhance stability, maintaining a 1% transmission value over 60 minutes, which is classified as having "good" characteristics for conformance control.
  3. Sakinah-Syed G, Liew JS, Abdul Majid N, Inche Zainal Abidin SA
    PeerJ, 2025;13:e18931.
    PMID: 40017656 DOI: 10.7717/peerj.18931
    BACKGROUND: Aberrations in primary cilia expression and intraflagellar transport (IFT) protein function have been implicated in tumourigenesis. This study explores the relationship between the alteration of primary cilia and tumourigenesis by investigating primary cilia expression and the role of IFT20 in regulating matrix metalloproteinase 9 (MMP-9) expression in oral squamous cell carcinoma (OSCC) cell lines.

    METHODS: The frequency and length of primary cilia were determined in OKF6-TERT2 cells, HSC-2 cells, and HSC-3 cells using immunofluorescence. Additionally, primary cilia presence in non-proliferating OSCC cells was examined. OSCC cells were treated with either small interfering RNA (siRNA) negative control or siRNA targeting IFT20 for functional analysis. mRNA expression levels of IFT20 and MMP-9 were quantified using quantitative reverse transcription polymerase chain reaction (qRT-PCR).

    RESULTS: Results showed that HSC-2 cells exhibit abundant primary cilia when cultured in low serum media (2% serum) for 48 h, followed by serum starvation for over 72 h. No significant changes in cilia expression were observed in HSC-3 cells compared to OKF6-TERT2 cells. Ciliated cells were found in non-proliferating HSC-2 and HSC-3 cells. OSCC cells showed longer cilia than OKF6-TERT2 cells, indicating ciliary abnormalities. Changes in ciliation and cilium length of OSCC cells were accompanied by increased expression of IFT20, an intraflagellar transport protein crucial for the primary cilia assembly. However, IFT20 knockdown did not affect MMP-9 at the mRNA level in these cells.

    CONCLUSIONS: This study reveals the differences in primary cilia expression among OSCC cells. Furthermore, the increased abundance and elongation of primary cilia in OSCC cells are accompanied by elevated expression of IFT20. Nonetheless, IFT20 did not affect MMP-9 mRNA expression in OSCC cells.

    MeSH terms: Carrier Proteins/genetics; Carrier Proteins/metabolism; Humans; Gene Expression Regulation, Neoplastic; RNA, Small Interfering/genetics; Cell Line, Tumor
  4. Salleh MZ, Nik Zuraina NMN, Deris ZZ, Mohamed Z
    PeerJ, 2025;13:e18986.
    PMID: 40017659 DOI: 10.7717/peerj.18986
    Pseudomonas aeruginosa continues to be a significant contributor to high morbidity and mortality rates worldwide, particularly due to its role in severe infections such as hospital-acquired conditions, including ventilator-associated pneumonia and various sepsis syndromes. The global increase in antimicrobial-resistant (AMR) P. aeruginosa strains has made these infections more difficult to treat, by limiting the effective drug options available. This systematic review and meta-analysis aim to provide an updated summary of the prevalence of AMR P. aeruginosa over the past 5 years. A systematic search was performed across three major electronic databases-PubMed, ScienceDirect, and Web of Science-yielding 40 eligible studies published between 2018 and 2023. Using a random-effects model, our meta-analysis estimated that the overall prevalence of P. aeruginosa in Asia and Africa over the past 5 years was 22.9% (95% CI [14.4-31.4]). The prevalence rates for multidrug-resistant (MDR) and extensively drug-resistant (XDR) P. aeruginosa strains were found to be 46.0% (95% CI [37.1-55.0]) and 19.6% (95% CI [4.3-34.9]), respectively. Furthermore, the prevalence rates of extended-spectrum β-lactamase- and metallo-β-lactamase-producing P. aeruginosa were 33.4% (95% CI [23.6-43.2]) and 16.0% (95% CI [9.8-22.3]), respectively. Notably, resistance rates to β-lactams used for treating pseudomonal infections were alarmingly high, with rates between 84.4% and 100.0% for cephalosporins, and over 40% of P. aeruginosa isolates showed resistance to penicillins. Our analysis identified the lowest resistance rates for last-resort antimicrobials, with 0.3% (95% CI [0.0-1.3]) resistance to polymyxin B and 5.8% (95% CI [1.5-10.2]) to colistin/polymyxin E. The low resistance rates to polymyxins suggest that these antibiotics remain effective against MDR P. aeruginosa. However, the findings also highlight the critical public health threat posed by antimicrobial-resistant P. aeruginosa, particularly concerning β-lactam antibiotics. This underscores the need for effective and carefully planned intervention strategies, including the development of new antibiotics to address the growing challenge of resistance. Developing robust antibiotic treatment protocols is essential for better management and control of pseudomonal infections globally. Therefore, continued research and international collaboration is vital to tackle this escalating public health challenge. This study protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO), under registration number CRD42023412839.
    MeSH terms: Africa/epidemiology; Asia/epidemiology; Humans; Prevalence; Drug Resistance, Multiple, Bacterial*
  5. Reza MF, Begum T
    J Integr Neurosci, 2025 Feb 24;24(2):25906.
    PMID: 40018780 DOI: 10.31083/JIN25906
    OBJECTIVES: This study aimed to investigate the differences between the source localization of the P300 event-related potential (ERP) component among the healthy and mild brain injury (MBI) patient population using standardized low-resolution electromagnetic tomography (sLORETA).

    METHODS: Thirty-eight participants were divided into control (n = 19) and MBI (n = 19) groups. Control participants were normal, healthy people, and participants with MBI were assigned into two groups: MBI 1st Test (7 days after a road traffic accident (RTA)) and MBI 2nd Test (2-6 months after RTA with the same participants of the 1st Test group). The 128-ERP nets were used on the heads of the participants during the experiments. Under the auditory oddball paradigm, all participants silently counted the target tones, while ignoring the standard tones. This study used the sLORETA tool in the Net Station software for the source localization of the P300 ERP component. The Mann-Whitney U test was used to compare intensities between groups, while the Wilcoxon Signed-Rank test was applied for paired observations within groups.

    RESULTS: Standard stimuli evoked P300 sources in the superior frontal gyrus (BA11) of the right frontal lobe in the control group, the superior temporal gyrus (BA38) of the right temporal lobe in the MBI 1st Test group, and the inferior frontal gyrus (BA47) of the left frontal lobe in the MBI 2nd Test group. Meanwhile, target stimuli evoked P300 sources at BA11 for all groups but in different gyrus: the superior frontal gyrus, orbital gyrus, and rectal gyrus in the control, MBI 1st Test, and MBI 2nd Test groups, respectively. In addition, there were significant differences in dipole intensities between and within groups among control and MBI patients in both standard and target stimuli.

    CONCLUSION: P300 source localization was shifted presumably due to the auditory cognitive impairment, and the dipole intensities were significantly higher in the MBI group than in the control group, indicating that the MBI group compensated for both standard and target tone stimuli, reflected in the sLORETA investigation.

    MeSH terms: Adult; Auditory Perception/physiology; Brain Injuries/physiopathology; Brain Mapping; Electroencephalography*; Evoked Potentials, Auditory/physiology; Female; Humans; Male; Middle Aged; Young Adult
  6. Burns RA, Sargent K, Crisp DA
    Int J Soc Psychiatry, 2025 Feb 28.
    PMID: 40018854 DOI: 10.1177/00207640251323345
    BACKGROUND: The experience of flourishing (i.e. high wellbeing) is informing our understanding of psychological health beyond psychopathology.

    AIMS: This study examines whether community members define their sense of flourishing in terms of the presence of wellbeing and/or the absence of psychopathology.

    METHODS: Participants (n = 1,094) were stratified by sex and age (18-39 years, 40-59 years and 60 years+), resided in Australia, the United Kingdom, Singapore, South Africa and Malaysia. Participants were presented with 12 items from the European Social Survey Wellbeing Module and 9 symptoms from the Diagnostic Statistical Manual for Major Depressive Disorder and Generalized Anxiety Disorder; mental health items were rephrased to reflect an absence of psychopathology. Respondents selected and ranked the five statements that best reflected their sense of flourishing.

    RESULTS: Wellbeing statements were the most frequently endorsed items for example, 'Feeling calm and peaceful', 'Life is valuable and worthwhile', 'Having people who care' and 'Feeling positive about oneself', but they were only endorsed by approximately 35% to 38% of respondents. Three pathology items were amongst the top 10 items endorsed.

    CONCLUSIONS: That not one indicator was endorsed by the majority of respondents suggests that flourishing definitions of positive mental health need to be defined by both the presence of wellbeing and absence of psychopathology. Notably, there were few between-nation differences in items endorsed, and those differences reported were not of a large magnitude suggesting consistency in the endorsement of indicators between nations.

  7. Rachmawati YL, Putri AH, Priyanto R, Nabilah KC, Gani ADS, Mohd-Dom TN
    Braz Oral Res, 2025;39:e025.
    PMID: 40008739 DOI: 10.1590/1807-3107bor-2025.vol39.025
    Although caries is a preventable disease, it is still a health burden in all countries in all age categories. This study aimed to identify the determinants associated with caries risk factors in Indonesian adults. This secondary analysis used 2018 National Health Survey data, which included 37,057 respondents aged ≥ 15 years. The sampling design was based on census blocks selected using linear systematic sampling with probability proportional to size (PPS). The survey included an interview to collect data on sociodemographic characteristics, oral health practice, and health behavior. An oral examination was conducted to measure the DMFT (decayed, missing, filled- teeth) index. Multivariable models were generated to estimate the odds ratio (OR) and confidence intervals (95% CI) using caries as the dependent variable. The highest average DMFT index was seen in those respondents aged over 45 years, those from rural areas, individuals with low formal education, those who consumed sweets and sugary beverages at least once a day, those who did not brush their teeth regularly, and those who smoked. The multivariable analysis showed the potential risk of caries: risk of 19.51 times for older adults, 74% for male, 94% for those living in rural areas, 1.62 times for those with lower formal education, 78% for those with no dental visits, 1.18 times for those who eat sweets often, 1.37 times for those who drink sugary beverages often, 1.48 times for those who do not brush their teeth regularly, and 1.3 times for those who smoke. The multifaceted nature of caries in the Indonesian adult population highlights the influence of various factors, ranging from lifestyle habits and oral hygiene practices to access to dental services, age, and educational level.
    MeSH terms: Adolescent; Adult; Age Factors; Aged; Cross-Sectional Studies; Dental Health Surveys; DMF Index*; Female; Health Surveys/statistics & numerical data; Humans; Indonesia/epidemiology; Male; Middle Aged; Oral Health/statistics & numerical data; Oral Hygiene/statistics & numerical data; Risk Factors; Sex Factors; Socioeconomic Factors; Age Distribution; Sex Distribution; Young Adult
  8. Aslfattahi N, Kiai MS, Baydogan N, Samylingam L, Kadirgama K, Kok CK
    Dalton Trans, 2025 Mar 17;54(12):5100-5108.
    PMID: 40008872 DOI: 10.1039/d5dt00148j
    Porous carbons with their abundant availability and high electrical conductivity present significant potential as cathode materials for Na-S batteries. In this study, we report the synthesis of nitrogen and phosphorus co-doped porous carbon (P-N co-doped PC) through a one-step carbonization process utilizing ammonium polyphosphate as the source of nitrogen and phosphorus. The average reversible capacities for P-N co-doped PC were 920, 861, 823 and 756 mA h g-1 at current densities of 0.2, 0.5, 1.0 and 2.0 C, respectively. Notably, upon returning to current densities of 1.0, 0.5 and 0.2 C, the capacities were restored to 805, 853 and 906 mA h g-1, highlighting the exceptional stability of the P-N co-doped PC. The pronounced capacitive storage mechanism of P-N co-doped PC can be attributed to the presence of numerous surface defects and active sites resulting from the co-doping of nitrogen and phosphorus. In particular, the remarkable cycling stability exhibited by the P-N co-doped PC can be ascribed to the exceptional stability of the surface layer that has undergone phosphorus doping, thereby facilitating the migration of ions. This research contributes valuable insights into the development of advanced Na-S batteries through the utilization of heteroatom-doped functionalized porous carbons.
  9. Rockall AG, Allen B, Brown MJ, El-Diasty T, Fletcher J, Gerson RF, et al.
    Radiology, 2025 Mar;314(3):e250325.
    PMID: 40008997 DOI: 10.1148/radiol.250325
    The urgency for climate action is recognized by international government and healthcare organizations, including the United Nations (UN) and World Health Organization (WHO). Climate change, biodiversity loss, and pollution negatively impact all life on earth. All populations are impacted but not equally; the most vulnerable are at highest risk, an inequity further exacerbated by differences in access to healthcare globally. The delivery of healthcare exacerbates the planetary health crisis through greenhouse gas emissions, largely due to combustion of fossil fuels for medical equipment production and operation, creation of medical and non-medical waste, and contamination of water supplies. As representatives of radiology societies from across the globe who work closely with industry, and both governmental and non-governmental leaders in multiple capacities, we advocate together for urgent, impactful, and measurable changes to the way we deliver care by further engaging our members, policymakers, industry partners, and our patients. Simultaneous challenges including global health disparities, resource allocation, and access to care must inform these efforts. Climate literacy should be increasingly added to radiology training programs. More research is required to understand and measure the environmental impact of radiological services and inform mitigation, adaptation, and monitoring efforts. Deeper collaboration with industry partners is necessary to support innovations in the supply chain, energy utilization, and circular economy. Many solutions have been proposed and are already available, but we must understand and address barriers to implementation of current and future sustainable innovations. Finally, there is a compelling need to partner with patients to ensure that trust in the excellence of clinical care is maintained during the transition to sustainable radiology. By fostering a culture of global cooperation and rapid sharing of solutions amongst the broader imaging community, we can transform radiological practice to mitigate its environmental impact, adapt and develop resilience to current and future climate and environmental threats, and simultaneously improve access to care. This article is simultaneously published in the Canadian Association of Radiologists Journal (DOI 10.1177/08465371241321390), European Radiology (DOI 10.1007/s00330-025-11413-7), Journal of Medical Imaging and Radiation Oncology (DOI 10.1111/1754-9485.13842), Journal of the American College of Radiology (DOI 10.1016/j.jacr.2025.02.009), Korean Journal of Radiology (DOI 10.3348/kjr.2025.0125) and Radiology (DOI 10.1148/radiol.250325). The articles are identical except for minor stylistic and spelling differences in keeping with each journal's style. Either DOI can be used when citing this article. Keywords: Climate Change, Sustainability, Resource Allocation, Radiology, Health Services Accessibility Published under a CC BY 4.0 license. © The Author(s) 2025. Editor's Note: The RSNA Board of Directors has endorsed this article.
    MeSH terms: Humans; Radiology*; Societies, Medical*; Global Health; Climate Change*
  10. Rockall AG, Allen B, Brown MJ, El-Diasty T, Fletcher J, Gerson RF, et al.
    Eur Radiol, 2025 Feb 26.
    PMID: 40009087 DOI: 10.1007/s00330-025-11413-7
    The urgency for climate action is recognized by international government and healthcare organizations, including the United Nations (UN) and World Health Organization (WHO). Climate change, biodiversity loss, and pollution negatively impact all life on earth. All populations are impacted but not equally; the most vulnerable are at the highest risk, an inequity further exacerbated by differences in access to healthcare globally. The delivery of healthcare exacerbates the planetary health crisis through greenhouse gas emissions, largely due to combustion of fossil fuels for medical equipment production and operation, creation of medical and non-medical waste, and contamination of water supplies. As representatives of radiology societies from across the globe who work closely with industry, and both governmental and non-governmental leaders in multiple capacities, we advocate together for urgent, impactful, and measurable changes to the way we deliver care by further engaging our members, policymakers, industry partners, and our patients. Simultaneous challenges, including global health disparities, resource allocation, and access to care, must inform these efforts. Climate literacy should be increasingly added to radiology training programs. More research is required to understand and measure the environmental impact of radiological services and inform mitigation, adaptation and monitoring efforts. Deeper collaboration with industry partners is necessary to support innovations in the supply chain, energy utilization, and circular economy. Many solutions have been proposed and are already available, but we must understand and address barriers to the implementation of current and future sustainable innovations. Finally, there is a compelling need to partner with patients, to ensure that trust in the excellence of clinical care is maintained during the transition to sustainable radiology. By fostering a culture of global cooperation and rapid sharing of solutions amongst the broader imaging community, we can transform radiological practice to mitigate its environmental impact, adapt and develop resilience to current and future climate and environmental threats, and simultaneously improve access to care. KEY POINTS: Question What actions can professional societies take to improve the environmental sustainability of radiology? Findings Better understanding of resource usage in radiology is needed; action is required to address regional and global disparities in access to care which stand to be exacerbated by climate change. Clinical relevance Radiological societies need to advocate for urgent, impactful, and measurable changes to mitigate the environmental impact of radiological practice. Research and education, as well as adaptation and resilience to current and future climate and environmental threats, must be prioritized while simultaneously improving access to care.
  11. Ramadhan M, Braga A, Alzaid M, Benzouak T, Hamouche F, Almarzouq A
    Urolithiasis, 2025 Feb 26;53(1):41.
    PMID: 40009135 DOI: 10.1007/s00240-025-01696-2
    Extracorporeal shockwave lithotripsy (ESWL) is one of the first-line treatments in the management of renal stones and is usually performed using fluoroscopic (FS) guidance. Ultrasonography (US) is a potential alternative with minimal radiation exposure. The primary aim of this study was to compare the stone free rate (SFR) between US and FS guided ESWL. The secondary outcomes were overall complications, re-intervention rate, hematuria, UTI, pain occurrence and number of shocks required. A prospectively registered systematic review and meta-analysis (CRD42024511335) according to PRISMA guidelines, was conducted. MEDLINE, EMBASE, Cochrane CENTRAL, Web of Science, were searched up to February 15, 2024. Snowballing techniques and Google Scholar were used for external gray literature. Adult and pediatric subgroups were pooled and individually analyzed. Twelve studies were identified with 2673 patients. Ultrasonography yielded a significantly favorable SFR (OR 1.43;95%CI [1.06-1.94]; P = 0.02). This difference was found only in the adult subgroup. No differences were found between modalities, nor within any subgroup in terms of secondary outcomes. In this meta-analysis, US-ESWL demonstrated a higher SFR compared to standard FS-ESWL However, this finding was shown only in adult patients, and although there was no difference in pediatric patients, the minimized radiation exposure remains an attractive attribute in US-ESWL.These results should be interpreted cautiously, due to a limited number of RCTs and heterogeneity between studies. More research is needed especially in pediatric populations, to further elucidate the role of US in ESWL.
    MeSH terms: Fluoroscopy/methods; Humans; Treatment Outcome
  12. Shah M, Natarajan SB, Ahmad N
    Ir J Med Sci, 2025 Feb 26.
    PMID: 40009277 DOI: 10.1007/s11845-025-03920-9
    BACKGROUND: The rise in usage of smartphones and digital devices among pediatric population has raised concerns about their eye's health. It is of particular interest in relation to dry eye disease (DED) and inflammatory conjunctivitis. Prolonged screen exposure is linked to reduced blink rates, tear evaporation, and tear break-up time (TBUT), that can lead to ocular discomfort and tear instability.

    OBJECTIVE: To find association between excessive screen time, dry eye disease, and inflammatory conjunctivitis in children aged 3 to 11 years.

    METHODS: A cross-sectional correlational study was conducted at a tertiary care hospital Islamabad. Non-probability purposive sampling technique was adopted. Detailed ophthalmic examinations, including TBUT and blink rate assessments, were performed. The relationship between excessive screen time, TBUT, blink rate, and inflammatory conjunctivitis was assessed using multivariate analysis. A 95% confidence interval was kept significant.

    RESULTS: A total of 479 participants aged 6.7 ± 1.9 were included. The mean screen time was 4.52 ± 1.49 hour/day, while mean TBUT was 10.29 ± 3.17. A significant negative relationship was found between screen time and TBUT (B =  - 0.351, p 

  13. Lim YC, Cheong SK, Leong PP
    Stem Cell Rev Rep, 2025 Feb 26.
    PMID: 40009297 DOI: 10.1007/s12015-025-10855-2
    Haematopoietic stem cells (HSC) and macrophages hold promise for cell-based therapy. Induced pluripotent stem cells (iPSC) offer an alternative to human embryonic stem cells (hESC) for generating haematopoietic cells in vitro, sidestepping ethical concerns. However, precise comparisons of the developmental process and productivity between iPSC and hESC during haematopoietic differentiation are limited, and producing sufficient HSC for clinical use remains challenging. We introduce a refined, simplified protocol that is xeno-, serum-, and feeder-free for differentiating fibroblast-derived human iPSC (NHDF-iPSC) and the hESC-H9 clone (H9-ESC) using the STEMdiff™ Hematopoietic kit, with differentiation extended by in-house cytokine addition. We demonstrate that NHDF-iPSC recapitulate the haematopoietic differentiation of H9-ESC, forming CD31+CD144+CD34+ haemogenic endothelia (HE) as intermediates, and producing CD34+CD43+CD45+/- haematopoietic stem and progenitor cells (HSPC). This protocol facilitates the production of CD34+ HSPC over an extended period and enhances the yield of HSC from NHDF-iPSC-derived HE three-fold. Interestingly, our results demonstrated that NHDF-iPSC outperformed H9-ESC by exhibiting superior differentiation capabilities, resulting in a higher abundance of HE and greater haematopoietic cell output (e.g., HSPC and HSC) upon cytokine stimulation. This phenomenon is presumably due to the higher expression of RUNX1 in NHDF-iPSC-derived HE (three-fold) as observed in our study, which may lead to a more productive endothelial-to-haematopoietic transition process and potentially facilitate the efficient production of haematopoietic cells. These CD34+ haematopoietic cells mature into 25F9+CD45+ macrophages, which exhibit comparable functions to those derived from hESC. Together, our results underscore the potential of iPSCs as a sustainable source for deriving HSC and macrophages for cell-based therapies.
  14. Samad MA, Zamani AI, Abdul Majid N, Karsani SA, Baharum SN, Yaacob JS, et al.
    PMID: 40009339 DOI: 10.1007/s12010-025-05200-9
    Colorectal cancer (CRC) is one of the common deadliest cancers worldwide. In Malaysia, the numbers of new CRC cases were horrific and worrisome. Telomerase is both prognostic indicator and predictor of carcinogenesis in CRC patients. Berberine, a telomerase inhibitor, was used in clinical trials and metabolomic studies; however, the association of telomerase with metabolites and metabolic pathways was not fully understood. Colorectal cancer cell line HCT 116 was cultured and treated with 10.54 µg/mL berberine. The cells were harvested at different time points to conduct subsequent analyses. The methods used in this research were real time-polymerase chain reaction (RT-PCR) to assess RNA expressions; Western blot to determine protein levels; TELOTAGGG Telomerase PCR ELISA to determine relative telomerase activity (RTA); 4',6-diamidino-2-phenylindole (DAPI) staining to determine percentage of nuclei damage; fluorescence microscopy for cell area; spectrophotometric potassium iodide assay for intracellular hydrogen peroxide concentration [H2O2]; as well as liquid chromatography mass spectrometry (LCMS) and tandem mass spectrometry (MS/MS) to investigate the intracellular metabolites. Partial least square-discriminant analysis (PLS-DA) score plot exhibited an improved separation compared to principal component analysis (PCA) when metabolomic data analysis of HCT 116 at various berberine treatment durations was conducted. Time and berberine treatment had an impact on RTA in HCT 116. RTA was discovered to be positively and negatively correlated to 14 and 2 metabolites, respectively. Glutamic acid was consistently found correlated to RTA. Other four metabolites, i.e., MG(14:0), [3-[hydroxy(phosphonooxy)phosphoryl]oxyphenyl] phosphono hydrogen phosphate), (3S,6S)-6-[[(3S,6R)-6-[(2S,3S,5S)-2,5-diiodo-4-methoxy-6-methyloxan-3-yl]oxy-3,4,5-trihydroxyoxan-2-yl]methoxy]-3,4,5-trihydroxyoxane-2-carboxylic acid, and 1-[5-O-(5'-adenylyloxyphosphonyl)-beta-D-ribofuranosyl]-5-amino-1H-imidazole-4-carboxamide, were newly discovered to be connected to RTA in HCT 116. Four metabolic pathways that majorly affected shared glutamic acid and glutamine. Nitrogen metabolism, D-glutamine and D-glutamate metabolism, glyoxylate and dicarboxylate metabolism, and aminoacyl-tRNA biosynthesis have been identified to be associated with RTA. Network analyses hinted that glutamic acid was also associated with oxidative stress mechanism. The multiple roles glutamic acid acted in diverse metabolic pathways and interaction networks emphasized the importance of glutamic acid in HCT 116 regarding RTA. This research establishes the association between RTA and several chosen RNAs, proteins, metabolites, and oxidative stress mechanisms, consequential in morphological alteration in HCT 116, to expand the knowledge of the intricate biological relationships and telomerase mechanism in CRC.
  15. Moradi F, Oresegun A, Khodaei A, Bradley DA, Taheri A, Khandaker MU, et al.
    Biomed Phys Eng Express, 2025 Mar 06;11(2).
    PMID: 40009884 DOI: 10.1088/2057-1976/adba65
    Optical fiber radioluminescence (RL) dosimetry has gained prominence in modern radiation therapy, offering real-time measurement and high spatial resolution. Our research group has developed a system utilizing a polymethyl methacrylate (PMMA) transmission fiber coupled with a photodetector and various scintillators, including doped silica fibers. A critical challenge in RL dosimetry lies in distinguishing the stem signal, generated by the transmission optical fiber, from the primary light signal produced by the RL sensor. To address this issue, we employed the Geant4 simulation tool, allowing for the simultaneous tracking of ionizing radiation and optical photons. In this study, the Geant4-based code, TOPAS, was utilized to conduct Monte Carlo simulations, aiming to gain insights into the radioluminescence signal in an optical fiber RL dosimeter and specifically characterize the stem signal for enhanced measurement accuracy. The simulations encompassed interactions of a medical photon beam from an Elekta linac within a solid water phantom, subsequent energy deposition within the RL sensor, and the generation and transmission of light signals within the optical fiber. Our emphasis was placed on detailed characterization of the light signals originating from both the Ge-doped silica fiber and PMMA transmission fiber. The primary focus was not only to discern the stem signal from the main signal but also to differentiate between the fluorescence and Cerenkov signals. Importantly, our study showcases how Monte Carlo simulations can be used to spectrally distinguish the stem signal from the scintillation signal of the sensor. This provides valuable information, especially in scenarios where spectrometry is unavailable, contributing to the understanding and refinement of optical fiber RL dosimetry systems.
    MeSH terms: Computer Simulation*; Humans; Light; Luminescent Measurements/methods; Monte Carlo Method*; Radiation, Ionizing*; Radiometry/instrumentation; Radiometry/methods; Photons*; Phantoms, Imaging*; Polymethyl Methacrylate/chemistry; Optical Fibers*
  16. Agustiany EA, Nawawi DS, Fatriasari W, Wahit MU, Vahabi H, Kayla DS, et al.
    Int J Biol Macromol, 2025 Feb 24.
    PMID: 40010451 DOI: 10.1016/j.ijbiomac.2025.141445
    Lignin can function as a fire retardant for biocomposites because of its excellent thermal stability. This work evaluated the impact of integrating technical lignin into chitosan-based bioplastics to enhance their mechanical and thermal properties. The solvent-casting technique was employed for the preparation of chitosan-lignin bioplastics. The incorporation of lignin improved the antioxidant properties and mechanical strength of the bioplastic, and it functions as a UV-blocking agent, as evidenced by UV-shielding studies, which indicates a reduction in the transmittance of the chitosan-lignin bioplastic by approximately fourfold. The incorporation of lignin washed 3× with HCl into the chitosan-based bioplastic increased the tensile strength of the material by 36.41 % and the elastic modulus by 56.04 %. The antioxidant activity of the chitosan-lignin-based bioplastic ranged from 75.80 % to 80.38 %, whereas that of neat chitosan was only 25.02 %. Thermal analysis revealed that incorporating lignin as an additive in a chitosan-based bioplastic improved the thermal stability and flame retardancy of the bioplastic. This is indicated by a higher limiting oxygen index (LOI) value ranging from 42 to 48 % for the chitosan-lignin bioplastics than for the control bioplastic (27 %), which has a UL-94 rating in the V-0 range. These findings support the fact that the antioxidant, strength, and fire-retardant performance of chitosan-based bioplastics could be enhanced by the addition of lignin.
  17. Shafizadeh M, Hizan H, Davids K
    Percept Mot Skills, 2025 Feb 26.
    PMID: 40010694 DOI: 10.1177/00315125251324419
    Background: Ageing leads to functional changes in body systems. Purpose: This study sought to examine the age-based differences in temporal patterning, temporal variability and temporal regularity of tennis service in older adults. Research design: cross-sectional study. Study sample: Participants of this study were volunteers from young (n = 10) and older (n = 11) adults who were self-defined as non-competitive, participating in tennis at a recreational (sub-elite) level for 2-3 days per week regularly. Data collection: They were asked to perform 20 trials of the same serves (flat, slice or top-spin) on a regular size court. The timing (duration) of the serve action was recorded and analysed, using a high-speed digital camera. Participants performed the tennis serves during their routine training sessions on a tennis court. They undertook a structured general (10min) and a specific warm-up routine (10min) before performing services. There was a 30-second rest period between trials. Results: Findings showed that there were no statistically significant differences between the two groups in temporal patterning, whereas the younger group performed the serves with higher variability and regularity/consistency than the older adults in some phases of the action. Conclusion: Older adults who participate recreationally in sports are able to preserve some functional organisation of perceptual-motor capacities, such as timing, due to long-term practice effects. The findings illustrate how sport participation may help maintain functional movement organisation following ageing to mitigate age-related declines in perception and action in late adulthood.
  18. Mardhiah J, Halim AS, Heng S, Saipolamin AQ
    BMJ Open, 2025 Feb 26;15(2):e092800.
    PMID: 40010838 DOI: 10.1136/bmjopen-2024-092800
    BACKGROUND: Intralesional corticosteroid injection (ILCSI) has been proven to successfully treat hypertrophic scars (HTSs) and keloids and attain remission in 50% of keloids. Pain is a significant problem with ILCSI, which can affect treatment compliance and effectiveness. To date, many techniques involving ILCSI have been described and used to achieve scar treatment while reducing side effects. The injection technique remains the most widely available method in many healthcare centres.

    OBJECTIVE: This scoping review explores strategies for alleviating pain while administering ILCSIs for hypertrophic scarring and keloid management. ILCSI is a second-line treatment for HTSs and a first-line treatment for keloids.

    ELIGIBILITY CRITERIA: This scoping review included studies where HTSs and keloids were treated with ILCSI and considered diverse demographics and injection methods. This review excludes other methods of corticosteroid drug delivery where injection is not involved and where the pain assessed is unrelated to injection or infiltration of the scar.

    SOURCES OF EVIDENCE: This review systematically searched critical databases from inception to December 2023, including ScienceDirect, PubMed and Web of Science, and handpicked articles traced from available review papers. Only English-language publications focused on pain management during ILCSIs for HTSs and keloids were included. All levels of scientific evidence were considered. An in-depth evaluation of the injection technique, type of analgesia or anaesthesia administered, effectiveness of pain management and overall treatment outcomes was conducted.

    CHARTING METHODS: Citations were compiled in an Excel spreadsheet, with three authors screening the titles and abstracts based on inclusion criteria. Decisions were finalised collaboratively, exclusions were documented and results were presented using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses flow diagram.

    RESULTS: 16 prospective studies, 2 retrospective studies, 1 case study and 15 journal articles were included. These studies examined ILCSI for hypertrophic scarring and keloid treatment. No differences in pain intensity between HTSs and keloids were reported. 11 studies systematically explored pain reduction methods such as topical analgesia, cryoanaesthesia, mixing triamcinolone acetonide with local analgesics, slow infiltration techniques, vibration analgesia and needle-free injectors.

    CONCLUSION: Pain can significantly impact patient compliance and treatment outcomes. This review offers a foundational reference for healthcare providers and researchers in the field of scar management, providing insights into current practices and highlighting areas for future research and development.

    MeSH terms: Glucocorticoids/administration & dosage; Glucocorticoids/therapeutic use; Humans; Pain/drug therapy; Pain/etiology; Injections, Intralesional*; Pain Management/methods
  19. Tseng CH, Wong S, Yu J, Lee YY, Terauchi J, Lai HC, et al.
    Gut, 2025 Apr 07;74(5):706-713.
    PMID: 40011030 DOI: 10.1136/gutjnl-2024-334501
    OBJECTIVE: Live biotherapeutic products (LBPs) are biological products composed of living micro-organisms, developed to prevent, treat, or cure diseases. Examples include cultured strains of Akkermansia muciniphila and Christensenella minuta, as well as treatments using purified Firmicutes spores for recurrent Clostridioides difficile infections. There is a need for guidelines over the increasing interest in developing LBPs. A panel of microbiome experts from Asia-Pacific countries articulates their perspectives on key considerations for LBP development.

    DESIGN: Experts in microbiome research, microbiology, gastroenterology, internal medicine and biotherapeutics industry were invited to form a panel. During the 2023 Inauguration Conference of the Asia-Pacific Microbiota Consortium, an organised, iterative roundtable discussion was conducted to build expert consensus on critical issues surrounding the development of LBP.

    RESULTS: The consensus statements were organised into three main aspects: (a) rationales of LBP development, (b) preclinical studies and (c) preparation for clinical studies. The panel strongly recommended to prioritise human-derived and food-sourced strains for development, with indications based on clinical need and efficacy shown in studies. Preclinical evaluation should involve thorough screening, genotyping and phenotyping, as well as comprehensive in vitro and animal studies to assess functional mechanisms and microbiological safety. Rigorous cell banking practices and genetic monitoring are essential to ensure product consistency and safety throughout the manufacturing process. Clinical trials, including postmarketing surveillance, must be carefully designed and closely monitored, with robust safety and risk management protocols in place.

    CONCLUSIONS: The development of LBP should be approached with a strong emphasis on microbiological evaluation, clinical relevance, scientific mechanisms and safety at every stage. These measures are essential to ensure the safety, effectiveness and long-term success of the product.

    MeSH terms: Gastrointestinal Microbiome*; Asia; Humans; Microbiota*
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