Browse publications by year: 2024

  1. Kumari V B C, Ramu R, Shirahatti PS, Alam P, Wong LS
    Front Microbiol, 2024;15:1497023.
    PMID: 39764448 DOI: 10.3389/fmicb.2024.1497023
    INTRODUCTION: Lactic acid bacteria are prized for their probiotic benefits and gut health improvements. This study assessed five LAB isolates from Neera, with RAMULAB51 (Levilactobacillus brevis, GenBank ON171686.1) standing out for its high hydrophobicity, auto-aggregation, antimicrobial activity, and enzyme inhibition. It evaluated RAMULAB51's potential in probiotics and diabetes management, focusing on its effects on digestive enzyme inhibition, glucose uptake, and adipocyte function.

    METHODS: Isolates were characterized by Gram staining, catalase reaction, growth at 37°C, and tolerance to phenol, pH, and gastrointestinal conditions. Molecular identification using 16S rRNA sequencing. Evaluations included hydrophobicity, auto-aggregation, HT-29 cell line adhesion, antimicrobial activity, and antibiotic susceptibility. Enzyme inhibition was measured for α-glucosidase and α-amylase using cell-free supernatant, cell extract, and intact cells. Adipogenesis was assessed through Oil-Red O staining, gene expression analysis (PPAR-γ, C/EBPα, Adiponectin, Glut-4, FAS), and glucose uptake assays on 3T3-L1 cells.

    RESULTS: All isolates showed good tolerance to pH (≤9.15 CFU/ml), phenol (≤9.90 CFU/ml), hydrophobicity (≤78.14%), and auto-aggregation (≤92.23%). RAMULAB51 demonstrated the highest tolerance, hydrophobicity, and auto-aggregation. It strongly co-aggregated with Micrococcus luteus and Bacillus subtilis, showing significant antimicrobial activity with a 24 mm inhibition zone against Micrococcus luteus. All isolates were sensitive to Ampicillin, Azithromycin, Streptomycin, and Tetracycline, but resistant to Methicillin and Vancomycin. RAMULAB51 demonstrated the highest enzyme inhibition: α-glucosidase (68.45% CFS, 60.18% CE, 42.15% IC) and α-amylase (80.74% CFS, 61.23% CE, 35.12% IC). By inhibiting these digestive enzymes, RAMULAB51 reduces the conversion of carbohydrates into glucose, thereby decreasing blood glucose levels. This reduction in circulating glucose subsequently influences adipocyte function, as evidenced by the enhanced glucose uptake (1000 µg/mL) and upregulation of PPAR-γ, C/EBPα, Adiponectin, and Glut-4, alongside the downregulation of FAS.

    CONCLUSION: The study highlights RAMULAB51's potential for improving glucose and lipid metabolism. Further, in vivo research is needed to explore its full therapeutic benefits. These findings confirm RAMULAB51's significant probiotic potential and its promise for diabetes management, warranting further clinical investigation.

  2. Cao S, Liu J, Wang Z, Geok SK
    Front Physiol, 2024;15:1391394.
    PMID: 38784117 DOI: 10.3389/fphys.2024.1391394
    Background: Evidence suggests that functional training (FT) positively impacts physical fitness and sports performance. However, a systematic review addressing the effects of FT on basketball players remains absent. This systematic review aims to explore the influence of FT on physical fitness and skill-related performance in basketball players. Methods: We searched six databases: Web of Science, Scopus, PubMed, China National Knowledge Infrastructure (CNKI), EBSCOhost, and Google Scholar. The search utilized a combination of keywords related to FT, physical fitness, and basketball. The Eligibility Criteria of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) guidelines were followed in this systematic review. Results: 11 studies were ultimately included in this review, collectively recruiting 333 basketball players. These studies demonstrated that FT significantly improved muscle strength, linear speed, cardiovascular endurance, flexibility, balance, and muscular endurance. However, the effects of FT on power, change-of-direction speed, and basketball-related performance were inconsistent. Most studies showed FT significantly improves these three variables, but a small number of studies did not find positive effects of FT using specific tests including standing long jump, Sargent jump, touch high, lane agility, lateral shuffle, dribbling line drill, and free-throw tests. Conclusion: FT is an effective training method for enhancing physical fitness including muscle strength, linear speed, cardiovascular endurance, flexibility, balance, and muscular endurance. However, the effects of FT on power, change-of-direction speed, and basketball-related performance were divergent. Some tests were not improved after FT potentially due to the short program lengths and training session durations, varied athletic levels of players examined, and different foci of the FT exercises administered. The collective evidence suggests FT programs, especially the specific exercises prescribed, should be tailored to the desired training objectives. More studies investigating the effects of FT on physical fitness and basketball-related performance with established tests are encouraged in the future to expand the current evidence base. Systematic Review Registration: https://inplasy.com/, Identifier INPLASY202360072.
  3. Abidin ZZ, Bahadun J
    Arch Craniofac Surg, 2024 Dec;25(6):270-278.
    PMID: 39757821 DOI: 10.7181/acfs.2024.00437
    BACKGROUND: Vascular anomalies are disorders of the vascular system. These anomalies are classified as either vascular tumors or vascular malformations, with each possessing distinct characteristics. This study was performed to analyze vascular anomaly referrals to a tertiary center, identify patterns of misdiagnosis, and create a proforma to ensure the comprehensiveness of clinical information.

    METHODS: We retrospectively analyzed vascular anomaly referral letters received by Hospital Tunku Azizah from 2018 to 2023. Specifically, we descriptively analyzed the inclusion of vascular anomaly characteristics, the demographic profiles of referrers and patients, and basic clinical findings. Subsequently, we developed a redesigned proforma.

    RESULTS: Overall, 47 referral letters were analyzed. The patients comprised 25 boys and 22 girls, with ages ranging from birth to 14 years. Patient name, sex, and date of birth, along with the referrer's name and address, were satisfactorily documented. The review revealed that 44 (93.6%) of the letters included the patient's presenting problem, 43 (91.5%) contained clinical findings, 37 (78.7%) reported diagnostic investigations, and 29 (61%) referenced medical history. Regarding characteristics of vascular conditions, over half of the letters detailed time of appearance (n= 40, 85%), growth (n= 24, 66%), complications (n= 25, 53.2%), color (n= 32, 68%), and shape (n= 34, 72%). However, fewer than half mentioned compressibility (n= 7, 14.8%), pulsation (n= 7, 14.7%), and associated conditions (n= 2, 4.3%), and none referenced involution.

    CONCLUSION: Although demographic data were generally well-documented, critical medical history information was frequently omitted, including a lack of adequate pre-referral investigations. Key characteristics of vascular anomalies, namely compressibility, pulsation, associated conditions, and involution, were frequently overlooked. Accurate documentation of these features is crucial for determining treatment urgency. A standardized proforma must be implemented to ensure that vital information is captured, thus facilitating diagnosis and optimizing patient care.

  4. Azlisham NAF, Rahman FSA, Mahmood Z, Mohamad D, Johari Y, Al-Batayneh OB
    J Taibah Univ Med Sci, 2024 Dec;19(6):1119-1129.
    PMID: 39758353 DOI: 10.1016/j.jtumed.2024.11.003
    OBJECTIVE: The study aimed to conduct a comparative analysis of the effects of incorporating hydrazinyl coumarin derivative (HCD) in resin-modified (RMGIC) and conventional glass ionomer cement (cGIC) on their release profiles and antibacterial properties.

    METHOD: Resin-modified GIC, Fuji II LC (F2) and high-fluoride cGIC, Fuji VII (F7) were used as controls. HCD was synthesized in-house, incorporated into both RMGIC and cGICs at 1 % and 2 % weight percentages (w/w), and chemically analyzed using Fourier transform infrared (FTIR) spectroscopy. Then, the F2 containing HCD (GIC-HCD F2) and F7 containing HCD (GIC-HCD F7) were evaluated for HCD and fluoride release profiles using UV Visible spectrophotometer and pH/ISE benchtop fluoridemeter, respectively. The antibacterial properties were assessed against Streptococcus sanguinis using the agar well diffusion method and measurement of bacterial growth turbidity, followed by the observation of the bacterial morphology using scanning electron microscope. The data were statistically analyzed using one-way ANOVA and Bonferroni post-hoc tests.

    RESULTS: The FTIR spectra confirmed the presence of HCD in the GIC-HCD matrices. HCD was successfully released from both GIC-HCD F2 and GIC-HCD F7 matrices at both weight percentages. Higher fluoride release and inhibitory zones were observed compared to the control groups, with GIC-HCD F2 having a more significant effect than GIC-HCD F7. Additionally, the incorporation of HCD slowed down the growth of Streptococcus sanguinis and showed remarkable changes in bacterial shape specifically on GIC-HCD F2.

    CONCLUSION: The incorporation of HCD into both RMGIC and cGIC improved fluoride release and enhanced the antibacterial activities, with a more significant effect observed in RMGIC compared to cGIC.

  5. Sonne C, Lam SS, Foong SY, Wan Mahari WA, Ma NL, Bank MS
    iScience, 2024 Dec 20;27(12):111482.
    PMID: 39759013 DOI: 10.1016/j.isci.2024.111482
    Odontocetes are globally distributed and are foundational to the structure and function of marine food webs, and hence bycatch impacts from gillnet fishing need to be considered in the context of their conservation and population viability. Currently, global gillnet bycatch numbers are unknown yet are estimated to be the greatest in Asia, East Africa, and the west coasts of North and South America. Here we provide the first global meta-analyses of small- and large-scale gillnet bycatch estimates of odontocetes during 1990-2020, compiling population size, estimated gillnet bycatch, and conservation status in support of geographical and species-specific risk estimates. We estimate that annual gillnet bycatch is ∼50,000 from 1990 to 2020, and, combined with overfishing, pollution, and noise, it has been shown to be a serious threat to these long-lived and slow-reproducing species with heavy offspring investment. The global gillnet bycatch of odontocetes is a difficult challenge to address and mitigate and requires improved species and regional-based management strategies including collaborations between fishers, fisheries managers, marine mammal experts, and marine spatial planners. This has been worked on for decades, yet more attention is needed for successful management of odontocete gillnet bycatch to ensure their sustainable future in the Anthropocene Ocean, in accordance with local subsistence dynamics and the relevant United Nations (UN) sustainable development goals.
  6. Alias N, Khaw WF, Nasaruddin NH, Tan L, Muhammad EN, Awaluddin SM, et al.
    Iran J Public Health, 2024 Dec;53(12):2705-2713.
    PMID: 39759204
    BACKGROUND: Truancy is correlated with variety of unfavorable outcomes that can negatively impact adolescents' development and well-being. We investigated the prevalence of truancy and its associated factors among school-going adolescents in Malaysia in 2022.

    METHODS: We used secondary data from the National Health and Morbidity Survey 2022. It is a cross-sectional study with a multistage stratified cluster sampling study design including 32,290 students aged 13 to 17 years old. It utilized the self-administered questionnaire from the validated Malaysian Global School-based Health Survey (GSHS). The associations between the truancy and its associated factors were examined using multivariate logistic regression, a complex sample analysis with sampling weightage.

    RESULTS: The prevalence of truancy was 25.6% (95% CI=24.25, 26.98). In the multivariate analysis, truancy was significantly associated with older age groups (P<0.001), adolescents with separated/ divorced/ widowed parents (P<0.001), those with current any tobacco product use (P<0.001), those with ever drug use (P<0.001), those who have been physically attacked (P<0.001) and being bullied (P<0.001).

    CONCLUSION: Gender, age, parent marital status, and adolescents with risk behavior were associated with truancy. This information may provide evidence for the implementation of effective prevention and intervention strategies to reduce truancy among these school-going adolescents.

  7. Fitri Abdul Razak MI, Fauzi FA, Zulkefli NAM
    Iran J Public Health, 2024 Dec;53(12):2768-2778.
    PMID: 39759210
    BACKGROUND: Community Health Volunteers (CHVs) are crucial in achieving universal health coverage and vital in public health activities, including the COMBI (Communication for Behavioral Impact) approach for dengue prevention and control and assessing the performance of COMBI CHVs are essential in evaluating the program effectiveness. We aimed to measure the level of performance and determine predictors of high-performance among COMBI CHVs in Kuala Lumpur and Putrajaya.

    METHODS: A cross-sectional study was conducted in 2023 among 285 COMBI CHVs from 5 health operational zones in Kuala Lumpur and Putrajaya. The CHVs were stratified proportionately, with 45.5% of respondents randomly selected from each stratum based on their zones. Self-administered questionnaires assessed their performance level and associated factors, including training, supervision, knowledge, motivation, and job satisfaction. Chi-square and Multiple Logistic Regression tests were used to determine the factors and predictors of high-performance COMBI CHVs.

    RESULTS: The prevalence of high-performance COMBI CHVs was 59.3%, significantly associated with training factors (experience, duration, and adequacy of training), supervision factors (being supervised, supervision frequency, and encouragement from supervision), motivation and job satisfaction level. As for significant predictors, having at least one day of training (AOR=14.557), being supervised by medical personnel (AOR=4.997), having a high motivation level (AOR=5.538) and having a high job satisfaction level (AOR=4.562) were more likely to have a high-performance level.

    CONCLUSION: Training duration, supervisor background, motivation and job satisfaction can contribute to high-performance levels among COMBI CHVs, which can applied in evidence-based policies and strategies for performance improvement and more effective community healthcare delivery.

  8. Gong X, Yee CL, Lee SY, Saif ANM, Liu M, Anonthi F
    Heliyon, 2024 Dec 30;10(24):e40564.
    PMID: 39759335 DOI: 10.1016/j.heliyon.2024.e40564
    This study explores the causes of curiosity-driven impulse buying in blind boxes using the Stimulus-Organism-Response (S-O-R) model and adaptation level theory. It examines how store environment and product factors contribute to customer curiosity, incorporating price consciousness into the overall framework. Insights from an online survey of 306 Chinese respondents indicate that environmental factors and specific product characteristics positively influence consumer curiosity, while price consciousness has a negative moderate effect. The findings also show that customer curiosity stimulates impulse buying behavior and mediates the relationship between store atmosphere, surprise, and perceived novelty. This study identifies both objective and subjective factors behind blind box impulse buying and offers relevant suggestions for governments and consumers on managing impulse buying.
  9. Ismail NH, Siddig A, Ab Aziz NAF, Ramli M, Zulkafli Z, Johan MF, et al.
    Cureus, 2024 Dec;16(12):e75174.
    PMID: 39759638 DOI: 10.7759/cureus.75174
    BACKGROUND AND AIM: Distinguishing dengue fever (DF) from other viral infections solely based on common presentations poses a challenge. Therefore, there is a pressing need for additional diagnostic parameters that are reliable, swift, and cost-effective. This study aims to provide novel insights into the diagnostic value of hematological parameters, particularly mean monocyte volume (MMV), in predicting DF in Kelantan, Malaysia.

    METHODOLOGY: This cross-sectional study enrolled 162 patients with suspected DF symptoms. The diagnosis was confirmed through dengue immunoglobulin M (IgM) capture enzyme-linked immunosorbent assay (ELISA) or Dengue Early ELISA for nonstructural protein 1 (NS1) antigen detection. Hematological parameters were measured using the Coulter DxH 800 hematology analyzer (Beckman Coulter, Brea, CA), and the statistical analysis was performed using SPSS version 22 (IBM Corp., Armonk, NY).

    RESULTS: A total of 108 patients tested positive for DF, while 54 tested negative. We observed significant differences in WBC count, platelet count, and monocyte percentage between patients with DF and non-DF, while no significant correlation was noted for MMV. Subsequent statistical analysis, including receiver operating characteristic (ROC) curve analysis, revealed that monocyte percentage exhibited the largest area under the curve (0.715), indicating its potential as moderate discriminative power in diagnosing DF.

    CONCLUSIONS: Our study findings indicate that monocyte percentage and MMV outcomes are insufficient for predicting DF, suggesting potential areas for further research.

  10. Mohammad NI, Gunaseelan S, Kuganasan S, Mat Saad N, Md Din N
    Cureus, 2024 Dec;16(12):e75139.
    PMID: 39759718 DOI: 10.7759/cureus.75139
    Granulomatosis with polyangiitis (GPA) is a subtype of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) that commonly requires aggressive immunosuppression to achieve remission. We present a case of a young Malay lady with recurrent episodes of ANCA-positive nodular anterior scleritis who responded poorly to topical and systemic corticosteroids and relapsed while on methotrexate. A year later, she had epistaxis, and a sino-nasal biopsy confirmed granulomatous vasculitis. While receiving cyclophosphamide, she developed proptosis with optic neuropathy, which resolved with intravenous methylprednisolone. She eventually required rituximab as she was still having relapses on other immunosuppressants. Adequate and targeted treatment with immunomodulators is crucial to achieving disease remission in GPA.
  11. Expert Meeting on Accelerating Access to Human Genomics for Public Health Participants
    Lancet Reg Health West Pac, 2024 Dec;53:101265.
    PMID: 39759797 DOI: 10.1016/j.lanwpc.2024.101265
  12. Mubarak N, Rahman Rana F, Zahid T, Ijaz UE, Shabbir A, Ghulam Bari A, et al.
    Drug Healthc Patient Saf, 2024;16:133-144.
    PMID: 39749185 DOI: 10.2147/DHPS.S491717
    BACKGROUND: The opioid crisis continues to be a public health concern worldwide due to the high rates of misuse and associated mortality. Opioid dispensing competencies are critical for pharmacy graduates to promote the rational use of opioids.

    PURPOSE: To evaluate the opioids dispensing competencies among the final year Pharm-D students in Punjab, Pakistan.

    DESIGN: A multicenter cross-sectional study.

    METHODS: A validated survey was used to evaluate 11 competencies related to opioid use from the final year Pharm-D students from diversely located accredited institutes. On a summative scale, correct response to each survey item was worth a score/point. Descriptive statistics was used for categorical variables while independent t-test computed group differences.

    RESULTS: A total of n = 661 final year Pharm-D students from 28 institutes (8 public and 20 private) completed the survey with an overall response rate of 78.5%. Comparatively, the students who had either completed a community or hospital internship, or studying in the educational institutions located in the provincial capital demonstrated a significant higher competency score. There was no significant difference in the overall mean competency scores based on gender or system of assessment used in the Pharm-D degree programs. Among eleven opioid competencies, students received the lowest scores for "opioid overdose management", "opioid monitoring" and "therapeutic uses of opioids".

    CONCLUSION: Pharm-D students in Pakistan require additional training and skills on many of the opioids related competencies to ensure patient's safety in healthcare settings. There is a need to revise the curriculum and teaching methodologies to improve the competencies of Pharm-D students in opioid dispensing.

  13. Rostami S, Yahyazadeh A, Adibi H
    Sci Rep, 2024 Dec 30;14(1):31586.
    PMID: 39738240 DOI: 10.1038/s41598-024-76786-z
    In this study, we present the synthesis of a silver nanocomposite by utilizing a β-cyclodextrin (βCD) polymer anchored onto the surface of magnetic g-C3N4 (referred to as g-C3N4-Fe3O4/βCD-Ag). The structure and composition of the g-C3N4-Fe3O4/βCD-Ag nanocomposite were thoroughly characterized using various techniques, including FT-IR, FE-SEM-EDS, TEM, TGA, XRD, ICP, and VSM. This catalytic system exhibited excellent selectivity in reducing nitro groups, even in the presence of other reactive functional groups, resulting in high yields ranging from 85 to 98%. Moreover, the organometallic nanocatalyst could be easily recovered from the solution using an external magnet and demonstrated consistent catalytic activity over six consecutive runs with a slight decrease.
  14. Zhao Z, Yeoh PSQ, Zuo X, Chuah JH, Chow CO, Wu X, et al.
    Front Neurol, 2024;15:1490829.
    PMID: 39737424 DOI: 10.3389/fneur.2024.1490829
    Alzheimer's disease (AD) is a neurodegenerative ailment that is becoming increasingly common, making it a major worldwide health concern. Effective care depends on an early and correct diagnosis, but traditional diagnostic techniques are frequently constrained by subjectivity and expensive costs. This study proposes a novel Vision Transformer-equipped Convolutional Neural Networks (VECNN) that uses three-dimensional magnetic resonance imaging to improve diagnosis accuracy. Utilizing the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset, which comprised 2,248 3D MRI images and diverse patient demographics, the proposed model achieved an accuracy of 92.14%, a precision of 86.84%, a sensitivity of 93.27%, and a specificity of 89.95% in distinguishing between AD, healthy controls (HC), and moderate cognitive impairment (MCI). The findings suggest that VECNN can be a valuable tool in clinical settings, providing a non-invasive, cost-effective, and objective diagnostic technique. This research opens the door for future advancements in early diagnosis and personalized therapy for Alzheimer's Disease.
  15. Samaila A, Basir R, Abdul Aziz NAL, Alarabei AA, Gambo ML, Abdullah MA, et al.
    Iran J Parasitol, 2024;19(4):428-439.
    PMID: 39735843 DOI: 10.18502/ijpa.v19i4.17163
    BACKGROUND: The interplay of OGG1, 8-Oxoguanine, and oxidative stress triggers the exaggerated release of cytokines during malaria, which worsens the outcome of the disease. We aimed to investigate the involvement of OGG1 in malaria and assess the effect of modulating its activity on the cytokine environment and anemia during P. berghei malaria in mice.

    METHODS: Plasmodium berghei ANKA infection in ICR mice was used as a malaria model. OGG1 concentration and oxidative stress levels in P. berghei-infected mice and their control counterparts were assessed during malaria using enzyme-linked immunosorbent assay. OGG1 activity in malaria mice was modulated using treatment with TH5487 and O8-OGG1 inhibitors. The effects of modulating OGG1 activity using OGG1 inhibitors on cytokine release and anemia during P. berghei malaria infection were assessed by cytometric bead array and measurement of total normal red blood cell count respectively.

    RESULTS: The plasma OGG1 level was significantly upregulated and positively correlated with parasitemia during P. berghei malaria in mice. Modulation of OGG1 ameliorated malaria severity by improving the total normal RBC count in TH5487 and O8-treated mice. Modulation of OGG1 with TH5487 caused significant reductions in serum levels of TNF-α, IFN-γ, IL-6, and IL-10. Similarly, OGG1 modulation activity using an O8-OGG1 inhibitor caused a significant reduction in serum levels of TNF-α, IL-2, IL-6, and IL-10.

    CONCLUSION: The findings indicate the involvement of OGG1 in the P. berghei malaria infection. OGG1 inhibition by TH5487 and O8-OGG1 inhibitors suppressed excessive cytokine release, and this may represent a novel therapeutic strategy for ameliorating the severity of malaria infection.

  16. Esak A, Hamzaid NA, See E, Khoo S
    Sci Rep, 2024 Dec 28;14(1):31438.
    PMID: 39733074 DOI: 10.1038/s41598-024-83127-7
    Wheelchair propulsion is a fundamental skill in wheelchair sports, particularly in wheelchair tennis. To achieve optimal mobility during wheelchair athletic performance, it is essential to consider propulsion techniques. This study examines the effect of push frequency and stroke duration on wheelchair maneuverability, measured by velocity during propulsion, among wheelchair tennis athletes. The athletes (N = 9; 5 elite and 4 novice) performed three tests; namely the comfortable speed propulsion test, sprint test and round-trip test; with and without holding their racquet, over their hard court. Results revealed that push frequency had positive correlation with propulsion velocity (r = 0.840, p 
    MeSH terms: Adult; Biomechanical Phenomena; Physical Exertion/physiology; Female; Humans; Male; Tennis*; Wheelchairs*; Young Adult; Athletes*
  17. Marhaeny HD, Rohmah L, Pratama YA, Kasatu SM, Miatmoko A, Addimaysqi R, et al.
    PLoS One, 2024;19(12):e0315312.
    PMID: 39729447 DOI: 10.1371/journal.pone.0315312
    Food allergies are a global health problem that continues to grow annually, with a prevalence of more than 10%. Shrimp allergy is the most common and life-threatening allergy. There is no cure for food allergies, but shrimp allergen extract (SAE) offers promise as a treatment through allergen-specific immunotherapy (AIT). However, whether SAE induces immunological tolerance in seafood allergies remains to be established. This study aimed to determine the effectiveness of SAE in inducing immunological tolerance in a gastro-food allergy mouse model. For the immunotherapy evaluation, mice (n = 24) were intraperitoneally (i.p.) sensitized with 1 mg alum and 100 μg SAE in PBS on days 0, 7, and 14 and randomly divided into four groups of six: a negative control (NC) and high- to low-dose immunotherapy (HI, MI, and LI). The untreated group (n = 6) only received 1 mg alum in PBS (i.p.). All groups were challenged with 400 μg SAE (i.g.) on days 21, 22, 23, 53, and 58. Following the challenge, SAE-sensitized mice from the immunotherapy group were treated (i.p.) with 10 μg SAE for LI, 50 μg SAE for MI, and 100 μg SAE for HI on days 32, 39, and 46. The untreated and NC groups only received PBS (i.p.). All mice were euthanized on day 59. As the results, we found that SAE immunotherapy reduced systemic allergy symptom scores, serum IL-4 levels, IL-4 and FcεR1α mRNA relative expression, and mast cell degranulation in ileum tissue in allergic mice while increasing Foxp3 and IL-10 mRNA relative expression. Notably, we observed an increased ratio of IL-10 to IL-4 mRNA expression, demonstrating the efficacy of SAE immunotherapy in promoting desensitization. Thus, SAE can be developed as an immunotherapeutic agent for food allergies by inducing prolonged allergy tolerance with a wide range of allergen targets.
    MeSH terms: Animals; Disease Models, Animal*; Female; Immunoglobulin E/blood; Immunoglobulin E/immunology; Mice, Inbred BALB C; Penaeidae/immunology; Mice
  18. Watanabe N, Sanada E, Okano A, Nogawa T, Lai NS, Mazaki Y, et al.
    FEBS Lett, 2024 Dec 27.
    PMID: 39727141 DOI: 10.1002/1873-3468.15085
    FOXO3a is a transcription factor involved in cell growth inhibition and apoptosis. FOXO3a is localized in the cytoplasm in cancer cells, and its nuclear translocation by small molecules is expected to prevent cancer cell growth. In this study, we screened a fungal broth library in HeLa cells using fluorescently labeled FOXO3a and an AI-based imaging system. We identified violaceoid F, which translocates FOXO3a into the nucleus by inhibiting CRM1, which is responsible for nuclear protein export. Violaceoid F was observed to target the reactive cysteine of CRM1 through its α, β-epoxyketone. However, because violaceoid F did not inhibit Crm1 in fission yeast cells, it seems to target cysteine residue(s) other than Cys528 of human CRM1 which are not targeted by other known CRM1 inhibitors, indicating that violaceoid F inhibits CRM1 via a novel mechanism.
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