Browse publications by year: 2024

  1. Peng Q, Zhu X, Jiang Y, Peng M, Zheng D, Wang X, et al.
    Front Med (Lausanne), 2024;11:1462513.
    PMID: 39618816 DOI: 10.3389/fmed.2024.1462513
    INTRODUCTION: Non-alcoholic fatty liver disease (NAFLD) has become the leading cause of chronic liver disease worldwide. Hepatocellular carcinoma (HCC) is the fifth most common malignancy worldwide, with high morbidity and mortality. The rapidly increasing incidence of NAFLD is becoming an essential precursor of HCC globally. MicroRNAs (miRNAs) are involved in the progression of NAFLD and HCC.

    METHOD: Potential miRNAs associated with NAFLD in HCC tumorigenesis were identified through a systematic review, and their roles were evaluated by data mining analysis. The biological function of the potential miRNA and its target genes in NAFLD and HCC were evaluated by bioinformatic analysis.

    RESULT: MIR122 was identified as the potential miRNA associated with NAFLD and HCC. Then, MIR122 expression was significantly lower in HCC patients, and higher MIR122 levels were associated with significantly better overall survival. Next, the biological functions of MIR122 and target genes were predicted to be involved in inflammation, fibrosis, cell proliferation, invasion, metastasis, and apoptosis. In particular, the FOXO signaling pathway may regulate the above biological functions.

    CONCLUSION: MIR122 was suggested to be involved in progressing from NAFLD to HCC through the PI3K/AKT/FOXO pathway.

    SYSTEMATIC REVIEW REGISTRATION: PROSPERO, identifier: CRD 42024517940.

  2. Almoosawy SA, Esmaiel A, Farrag I, Al Jarallah M, Zubaid M
    Heart Views, 2024;25(2):57-62.
    PMID: 39619106 DOI: 10.4103/heartviews.heartviews_50_24
    BACKGROUND: Emerging evidence from various countries suggests that ST-segment elevation myocardial infarction (STEMI) patients with differing health-care insurance types experience discrepancies in clinical management and outcomes. Kuwait government provides free essential treatments and medications to noninsured patients with certain emergency conditions. We aimed to compare differences in clinical management and in-hospital and 30-day outcomes in STEMI patients with different insurance types in Kuwait.

    METHODS: Data were derived from Kuwait Catheterization Laboratory Project (Kuwait CLAP) registry. Adult patients (≥18 years) diagnosed with STEMI were enrolled in Kuwait CLAP registry between February 2020 and February 2021. Patients were categorized into insured and noninsured. The coprimary outcomes were the in-hospital and 30-day mortality in insured versus noninsured patients with STEMI. In-hospital and 30-day adverse cardiac outcomes were also compared.

    RESULTS: Of 668 patients with STEMI, 116 (17%) were insured and 552 (83%) were not insured. Three (2.6%) of the insured and 9 (1.6%) of the noninsured patients suffered in-hospital mortality, while no patients in the insured group and four patients (0.7%) patients in the noninsured group suffered 30-day mortality, with no significant difference between the two groups (P = 0.447 and P = 1, respectively). The rates of in-hospital complications and 30-day adverse events were similar between the two groups.

    CONCLUSIONS: Our findings suggest no differences in acute or short-term outcomes among patients with different insurance status in Kuwait. These findings are reassuring knowing that the free essential services provided by Kuwait government for STEMI patients did not compromise the outcomes of noninsured compared to insured patients.

  3. Mansor J, Safian N, Abdul Razak F, Ismail H, Ghazali MH, Ismail N
    PeerJ, 2024;12:e18571.
    PMID: 39619183 DOI: 10.7717/peerj.18571
    BACKGROUND: Social interactions within and between communities influenced the spread of COVID-19. By using social network analysis (SNA), we aimed to understand the effect of social interaction on the spread of disease in a rural district.

    METHOD: A retrospective record review study using positive COVID-19 cases and contact-tracing data from an area in Malaysia was performed and analysed using the SNA method through R software and visualised by Gephi software. The justification for utilizing SNA is its capability to pinpoint the individuals with the highest impact and accountability for the transmission of COVID-19 within the area, as determined through SNA.

    RESULT: Analysis revealed 76 (4.5%) people tested positive for COVID-19 from 1,683 people, with 51 (67.1%) of the positive ones being male. Outdegrees for 38 positive people were between 1 and 12, while 41 people had 1-13 indegree. Older males have a higher outdegree, while younger females have a higher outdegree than other age groups among same-sex groups. Betweenness was between 0.09 and 34.5 for 15 people. We identified 15 people as super-spreaders from the 42 communities detected.

    CONCLUSION: Women play a major role in bridging COVID-19 transmission, while older men may transmit COVID-19 through direct connections. Thus, health education on face mask usage and hand hygiene is important for both groups. Working women should be given priority for the work-from-home policy compared to others. A large gathering should not be allowed to operate, or if needed, with strict adherence to specific standard operating procedures, as it contributes to the spread of COVID-19 in the district. The SNA allows the identification of key personnel within the network. Therefore, SNA can help healthcare authorities recognise evolving clusters and identify potential super-spreaders; hence, precise and timely action can be taken to prevent further spread of the disease.

    MeSH terms: Adolescent; Adult; Aged; Child; Child, Preschool; Female; Humans; Infant; Malaysia/epidemiology; Male; Middle Aged; Retrospective Studies; Rural Population*; Contact Tracing; Young Adult; Pandemics/prevention & control; Social Networking
  4. Khalaf TK, Ismail N, Nazri NA, Ahmed N, Yajid AI, Mohamud R, et al.
    PeerJ, 2024;12:e18420.
    PMID: 39619199 DOI: 10.7717/peerj.18420
    BACKGROUND: Natural killer cells (NK cells) are essential in cancer immunosurveillance in the body as they can recognize cancer cells that lacking MHC class 1 on their surface. Regulatory cytokines, including interleukin (IL)-18, IL-12, IL-10, IL-8, interferon-γ (IFN-γ), and secretory granules like perforin and granzyme are involved in NK cell-mediated cytotoxicity. Stimulating NK cells cytotoxicity towards cancer cells is an ideal strategy to combat cancer naturally. Medicinal plants have been reported to enhance immunity, with Pereskia bleo (P. bleo) particularly noteworthy due to its abundant bioactive compounds and ability to activate immune cells. This study aimed to evaluate the potential of methanol extract of P. bleo leaves (MEPB) for enhancing NK cell cytotoxicity against triple-negative human breast cancer cells (MDA-MB-231).

    METHODS: The optimal concentration of MEPB to activate NK cells was determined using healthy blood samples, assessing the expression of IL-12, IL-18, IL-10, IL-8, IFN-γ, perforin, and granzyme B via an enzyme-linked immunosorbent assay (ELISA). NK cell purity from healthy donors and breast cancer patients was determined using specific antibodies, and the number of NK cells was assessed using flow cytometry and a hemocytometer. A co-culture experiment, ELISA, and apoptosis assay were used to evaluate NK-mediated cytotoxicity pathways.

    RESULTS: ELISA data indicated that MEPB at 7.5 µg/ml significantly increased the expression of IFN-γ, IL-12, IL-18, perforin, and granzyme B while decreasing IL-8 and IL-10 expression after 20 hrs of incubation. The average NK cell purity was 87.09 ± 0.043%. Breast cancer patients exhibited lower NK cell counts than healthy donors. Co-culture experiments demonstrated that NK cells induced apoptosis in MDA-MB-231 breast cancer cells in the presence of MEPB by increasing perforin, granzyme B, and IFN-γ expression in both healthy donors and breast cancer patients-experimental groups. P. bleo enhances NK cell activation, promoting the apoptosis of triple-negative human breast cancer cells (MDA-MB-231), suggesting the potential use of MEPB leaves as an anti-cancer immunostimulant.

    MeSH terms: Female; Humans; Interferon-gamma/metabolism; Cytokines/metabolism; Plant Leaves/chemistry; Cell Line, Tumor; Perforin/metabolism
  5. Petrone ME, Charon J, Grigg MJ, William T, Rajahram GS, Westaway J, et al.
    Virus Evol, 2024;10(1):veae091.
    PMID: 39619416 DOI: 10.1093/ve/veae091
    The Apicomplexa are a phylum of single-celled eukaryotes that can infect humans and include the mosquito-borne parasite Plasmodium, the cause of malaria. Viruses that infect non-Plasmodium spp. disease-causing protozoa affect the pathogen life cycle and disease outcomes. However, only one RNA virus (Matryoshka RNA virus 1) has been identified in Plasmodium, and none have been identified in zoonotic Plasmodium species. The rapid expansion of the known RNA virosphere via metagenomic sequencing suggests that this dearth is due to the divergent nature of RNA viruses that infect protozoa. We leveraged newly uncovered data sets to explore the virome of human-infecting Plasmodium species collected in Sabah, east (Borneo) Malaysia. From this, we identified a highly divergent RNA virus in two human-infecting P. knowlesi isolates that is related to the unclassified group 'ormycoviruses'. By characterizing 15 additional ormycoviruses identified in the transcriptomes of arthropods, we show that this group of viruses exhibits a complex ecology as noninfecting passengers at the arthropod-mammal interface. With the addition of viral diversity discovered using the artificial intelligence-based analysis of metagenomic data, we also demonstrate that the ormycoviruses are part of a diverse and unclassified viral taxon. This is the first observation of an RNA virus in a zoonotic Plasmodium species. By linking small-scale experimental data to advances in large-scale virus discovery, we characterize the diversity and confirm the putative genomic architecture of an unclassified viral taxon. This approach can be used to further explore the virome of disease-causing Apicomplexa and better understand how protozoa-infecting viruses may affect parasite fitness, pathobiology, and treatment outcomes.
  6. Asli NF, Mohd Matore MEE, Md Yunus M
    Heliyon, 2024 Nov 30;10(22):e40053.
    PMID: 39619579 DOI: 10.1016/j.heliyon.2024.e40053
    In assessing performance-based language assessment, the use of a valid and reliable scoring rubric is crucial to minimize measurement errors that become threats in the rating process. The validation process of rubrics which previously was based on qualitative data is not satisfying since empirical evidence is not present. Thus, drawing on the Assessment Use Argument (AUA) Validation Framework, this study aims to search for evidence to prove a claim which is Primary Trait Writing (PTW) rubrics for students self assessment activities are relevant to the construct being measured. Based on that, two warrants and one rebuttal were derived to prove the claim. The participants consisted of 149 secondary school students in a state in Malaysia and three facets identified in the study were the examinee (149 students), the rater (149 students and 3 teachers), and the trait (Content, Format, Cohesive Device, and Sentence Fluency). Many Facet Rasch Model was employed to search for evidence in approving the warrants and rejecting the rebuttal. Based on the statistical results, evidence has shown that PTW rubrics successfully discriminated between students' writing ability, and fulfilled the six basic conditions of rating scale effectiveness to a certain extent where the Cohesive Device trait became the primary concern. In addition, the fit statistics for all traits demonstrated internal consistency and the high-reliability index portrayed the criteria were well differentiated in terms of difficulty level. Thus, all evidence had shown that PTW rubrics obtained construct validity where the warrants were supported, and the rebuttal was rejected which led to the acceptance of the claim. The implication of this study highlights the importance of validating assessment rubrics to ensure their internal validity and the use of MRFM in providing comprehensive analyses of the strengths and weaknesses of the developed rubrics. The use of a primary trait type scoring rubric as a tool in students' self-assessment activities must be highlighted as more current studies are focusing on holistic and analytic scoring. Therefore, it is suggested for future research to expand the use of the Primary Trait rubrics in other type of essays and to be used in peer-assessment activities. Therefore, it is suggested for future research to expand the use of the Primary Trait rubrics in other types of essay and to be used in peer-assessment activities.
  7. Niazi FH, Luddin N, Niazy A, Mohamad S, Harun MH, Noushad M, et al.
    Saudi Dent J, 2024 Nov;36(11):1432-1437.
    PMID: 39619708 DOI: 10.1016/j.sdentj.2024.08.009
    AIM: This research assessed the mutagenicity and DNA damage of a novel type of nano-hydroxyapatite-silica glass ionomer cement (nano-HA-SiO2-GIC) and a conventional GIC (cGIC) using Ames and Comet assays.

    METHODS: Cell viability was tested on human periodontal ligament fibroblasts (HPLFs) using 3.125 mg/ml, 6.25, 12.5, 25, 50, 100 and 200 mg/ml, on both types of GICs employing MTT assay. For the Comet assay, HPLFs were treated with IC50, IC25 and IC10 of test materials and the tail moments were measured. In the Ames test, four genotypic variants of strains of Salmonella typhimurium (TA100, TA98, TA1537 and TA1535) and a strain of Escherichia coli (WP2 uvrA) were employed. The material tested was extracted using sterile distilled water (0.2 g per ml) at 37 °C for 72 h. This was considered as 100 %, which was diluted to 50, 25, 12.5 and 6.25 % utilizing sterile distilled water. These five concentrations were incubated with the bacterial strains with and without metabolic activation (S9), along with appropriate positive controls. The number of revertant colonies was used to evaluate the outcome.

    RESULTS: The highest cell viability (159.4 %) for nano-HA-SiO2-GIC was noticed at 3.125 mg/ml, while the lowest (24.26 %) was observed at 200 mg per ml. IC50, IC25 and IC10 values were 95.27, 51.4 and 20.1 mg/ml for cGIC, 106.9, 55.8 and 22.9 mg/ml for nano-HA-SiO2-GIC, respectively. The IC10 of both test materials showed no significant DNA damage compared to that of the negative control based on the Comet assay. The plate treated with nano-HA-SiO2-GIC showed less than double the average number of revertant colonies compared to that of negative control with regard to the Ames test.

    CONCLUSIONS: It can be concluded that nano-HA-SiO2-GIC is non-mutagenic based on the Ames test and did not cause DNA damage at the lowest concentration of IC10 based on the Comet assay.

  8. Mohamed S, Nik Abdul Rahman NN, Tan JY, Selvam T, Zulkifly HH, Cardiology Subspecialty Working Committee
    Hosp Pharm, 2024 Nov 29.
    PMID: 39619886 DOI: 10.1177/00185787241300293
    Introduction: In Asian countries, warfarin is still widely used for stroke prevention in non-valvular atrial fibrillation compared to non-vitamin K antagonist oral anticoagulants (NOACs) due to its affordability. A tool such as the SAMe-TT2R2 is needed to determine the probability of achieving and maintaining good anticoagulation control with warfarin therapy. However, it requires validation in the Malaysian cohort. Therefore, the objective of our study is to validate the SAMe-TT2R2 score in predicting poor anticoagulation control in Malaysia. A time in therapeutic range (TTR) 5 best predicts poor anticoagulation control with a sensitivity of 0.49 and a specificity value of 0.68. Conclusion: The SAMe-TT2R2 score, especially when exceeding 5, was associated with a higher likelihood of poor anticoagulation control, emphasizing its relevance in clinical assessment. However, its limited predictive capability, reflected by a C-statistic of 0.548, suggests the need for cautious interpretation and consideration of additional factors in anticoagulation management decisions. Continuous monitoring and personalized strategies are crucial for optimizing outcomes in this population.
  9. Arunkumar N, Gokul M, Narayanam H, Ananya AK
    Vet World, 2024 Oct;17(10):2253-2258.
    PMID: 39619938 DOI: 10.14202/vetworld.2024.2253-2258
    In recent years, a significant research effort has been underway to explore the effects of low-dose radiation (LDR). Animal models play a key role in various fields of research, including biomedicine, pharmaceutical, environmental, and behavioral studies. The use of animal models has been an invaluable tool in radiation research for understanding radiation biology, assessing radiation risks, and developing strategies for radiation protection and medical management. In the present review, the initial part focuses on the deleterious effects of high-dose radiation, and in correlation to that, in the later part of the review, the emphasis has been given to experimental approaches to explore the beneficial effects of LDR using animal models. This review could help explore the innovative approach for future research targeting the therapeutic role of LDR in various diseases, including depression, Cancer, Parkinson's disease, and Alzheimer's disease.
  10. Huligere SS, Kumari V B C, Patil SM, M K J, Wong LS, Kijsomporn J, et al.
    Food Sci Nutr, 2024 Nov;12(11):9682-9701.
    PMID: 39620004 DOI: 10.1002/fsn3.4444
    Sauerkraut-derived lactic acid bacterial (LAB) strains have gained attention due to their potential health benefits. This study focuses on evaluating seven Sauerkraut-derived RAMULAB strains isolated from sauerkraut, aiming to identify promising candidates for modulating α-glucosidase (AG) and α-amylase (AM) enzymatic functions. RAMULAB strains with remarkable probiotic potential can contribute to the digestive health and manage conditions like diabetes. Identifying robust candidates from sauerkraut, a fermented food, holds promise for natural and cost-effective probiotic sources. The RAMULAB strains underwent extensive characterization, including identification through 16S ribosomal RNA (rRNA) sequencing. Their tolerance to harsh conditions, adherence properties, antimicrobial activity, antioxidant potential, and inhibition of AG and AM were assessed. In silico analyses explored their molecular interactions, particularly with hydroxycitric acid, a potential antidiabetic compound. Among the RAMULAB strains, RAMULAB48 emerged as a standout candidate. It displayed exceptional resilience to acidic bile (≥97%), and simulated gastrointestinal conditions (≥95%), highlighting its suitability for probiotic applications. RAMULAB48 exhibited robust adherence properties, including cell-surface hydrophobicity (80%), autoaggregation (42%), coaggregation with pathogens (≥33%), and adhesion to epithelial cells. Additionally, all seven isolates demonstrated gamma-hemolysis and resistance to antibiotics (Kanamycin, Methicillin, and Vancomycin), while displaying strong antibacterial properties against foodborne pathogens. These RAMULAB strains also exhibited varying degrees of antioxidant activity, with RAMULAB48 displaying the highest potential (≥41%). In terms of antidiabetic activity, cell-free supernatant (CS) obtained from RAMULAB48 expressed the highest inhibition levels, notably inhibiting yeast AG by an impressive 59.55% and AM being by a remarkable 67.42%. RAMULAB48 produced organic acids, including hydroxycitric acid (28.024 mg/mL), which showed promising antidiabetic properties through in silico analyses, indicating favorable interactions with the target enzymes. This study identifies Lacticaseibacillus paracasei RAMULAB48, a Sauerkraut-derived RAMULAB strain, as a promising probiotic candidate with exceptional tolerance, adherence properties, antimicrobial activity, antioxidant potential, and antidiabetic effects. The presence of hydroxycitric acid further underscores its potential in managing diabetes.
  11. Hasan T, Thoo YY, Siow LF
    Food Sci Nutr, 2024 Nov;12(11):9391-9402.
    PMID: 39620032 DOI: 10.1002/fsn3.4494
    Fat and protein derived from milk are prime ingredients in a frozen dessert such as ice cream conferring multiple desirable functionalities. However, this frozen dairy dessert is not suitable for individuals having lactose intolerance, cow milk allergy, or vegans. Hence, the study aimed to formulate dairy-free frozen desserts using plant oils and plant proteins and compare their physicochemical characteristics and sensory acceptance against an ice cream containing milk fat and milk protein. Results indicated that the types of protein significantly influenced the physicochemical properties and sensory acceptance of the frozen dessert samples. Frozen desserts containing brown rice, pea, and soy protein showed greater resistance to melting (0.29, 0.12, and 0.19%/min vs. 1.95%/min), but they scored lower in sensory quality than ice cream made with milk protein; although they remained at an acceptable level. When compared among the plant proteins, the physicochemical characteristics of frozen desserts containing brown rice, pea, and soy protein varied because of the differences in the respective protein composition. Frozen dessert with brown rice protein showed higher overrun (47.50% vs. 40.78% and 37.8%), lower hardness (20.02 N vs. 22.24 and 26.37 N), and higher melting rate (0.29%/min vs. 0.19 and 0.12%/min) than frozen desserts containing soy and pea protein. Additionally, the brown rice protein frozen dessert received lower sensory acceptance than soy and pea protein frozen desserts. In summary, brown rice, pea, and soy proteins showed potential to be used as viable alternatives to milk protein for dairy-free frozen dessert applications.
  12. Kang WH, Adam II, Wahab NA
    J ASEAN Fed Endocr Soc, 2024;39(2):97-102.
    PMID: 39620176 DOI: 10.15605/jafes.039.02.05
    Managing a patient with both pituitary hypersecretory and hyposecretory manifestations may be perplexing. We report a 14-year-old female who presented with weight gain, polyuria and polydipsia. Biochemical results were consistent with Cushing disease with central diabetes insipidus. Pituitary magnetic resonance imaging showed a right adenoma with stalk thickening. The immunohistochemistry staining of both adenomas was positive for adrenocorticotropic hormone, thyroid stimulating hormone, growth hormone and luteinizing hormone. Postoperatively, the patient developed panhypopituitarism with persistent diabetes insipidus. The coexistence of double adenomas can pose diagnostic and management challenges and is a common cause of surgical failure. Intraoperative evaluation is important in the identification of double or multiple pituitary adenomas in a patient presenting with multiple secretory manifestations.
    MeSH terms: Adolescent; Diabetes Insipidus/etiology; Female; Humans; Magnetic Resonance Imaging; Diabetes Insipidus, Neurogenic/diagnosis; Diabetes Insipidus, Neurogenic/etiology
  13. Tan JE, Tan FHS, Kuan YC, Chan PL, Yusri Y
    J ASEAN Fed Endocr Soc, 2024;39(2):92-96.
    PMID: 39620178 DOI: 10.15605/jafes.039.02.16
    Adrenocortical carcinoma (ACC) is a rare malignant tumour from the adrenal cortex. Half of the cases are functional, with ACTH-independent autonomous cortisol production being the most common. It is rare for ACC to present with markedly elevated metanephrine levels, characteristic of pheochromocytoma. We report a case of a large functioning adrenal tumour with overlapping biochemical features of ACC and pheochromocytoma. Biopsy confirmed the histopathological diagnosis of metastatic ACC.
    MeSH terms: Adrenal Gland Neoplasms/diagnosis; Adrenal Gland Neoplasms/pathology; Adrenal Gland Neoplasms/secondary; Female; Humans; Male; Middle Aged; Pheochromocytoma/diagnosis; Pheochromocytoma/pathology
  14. Ong JC, W Omar WMH, Tuan Ismail TS, Chatterjee K, Hussain S
    J ASEAN Fed Endocr Soc, 2024;39(2):81-85.
    PMID: 39620185 DOI: 10.15605/jafes.039.02.04
    A three-year-old girl with a history of recurrent tonsillitis was investigated for failure to thrive and global developmental delay. Clinically, she had a triangular face with low-set ears and intermittent tachycardia. She had growth failure with her weight under the third centile while her height was within normal limits. Other systemic examinations were unremarkable. The presence of an elevated free T4 (FT4) with an inappropriately high thyroid stimulating hormone (TSH) in this patient raised the clinical suspicion of Thyroid Hormone Resistance Syndrome. DNA sequencing confirmed the diagnosis, which showed R243W gene mutation in Thyroid Hormone Receptor-Beta1 (THRB1).
    MeSH terms: Child, Preschool; Female; Humans; Mutation
  15. Hussain S, Mohd Fezal NS, Flanagan S
    J ASEAN Fed Endocr Soc, 2024;39(2):108-111.
    PMID: 39620188 DOI: 10.15605/jafes.039.02.03
    A four-year-old female who was born term via spontaneous vaginal delivery (SVD) with a birth weight of 3.4 kg had an onset of persistent hypoglycaemia at the 6th hour of life. She was diagnosed with congenital hyperinsulinism based on high glucose load, negative ketone and a good response to glucagon. Genetic workup revealed the presence of ATP Binding Cassette Subfamily C Member 8 (ABCC8 genes) mutation which indicated a focal form of congenital hyperinsulinism. She was resistant to the standard dose of oral diazoxide but responded to subcutaneous somatostatin. At the age of 3 years and 6 months, multiple daily injections of somatostatin were replaced with a long-acting monthly somatostatin analogue. With the present treatment, she had better glycaemic control, normal growth and was able to stop tube feeding.
    MeSH terms: Child, Preschool; Drug Resistance/genetics; Female; Humans; Sulfonylurea Receptors/genetics; Sulfonylurea Receptors/metabolism
  16. Zhou M, Osaka I, Hashimoto K, Yap CK, Emmanouil C, Nakano T, et al.
    J Hazard Mater, 2024 Dec 05;480:136085.
    PMID: 39395392 DOI: 10.1016/j.jhazmat.2024.136085
    Antifouling biocides such as Cu, Zn, and organic compounds not only inhibit adhesion of sessile organisms on ship hull but also possess toxicity to non-sessile organisms in marine environment. Thus, we firstly investigated the heavy metals and polymer types of anthropogenic microparticles (MPs) floating in the sea-surface microlayer (S-SML) in Osaka Bay. 7 types of MPs containing different metals (Cu, Cu-Zn, Zn, Ti, Sn, Ba and Fe-Mn-Ni) were found. The polymer type for 97.8 % of Cu and Cu-Zn MPs (41 samples) and 52.6 % of Zn MPs (19 samples) was acrylic resins which are widely used as binders in contemporary antifouling paints for ships; concentrations of 511-54,000 mg/kg for Cu and 95.1-13,200 mg/kg for Zn were found in these MPs. The high metal concentrations found the co-existence of acrylic polymers point towards an origin from antifouling paint particles (APPs). Furthermore, to quantify Cu and Zn concentrations in these MPs based on X-ray fluorescence spectroscopy (μ-XRF), calibration curves obtained from standard paint particles containing different Cu and Zn concentrations and different particle sizes made with similar matrix used in commercial antifouling paint were firstly established, according to which highly reliable Cu and Zn concentrations in MPs were obtained.
  17. Qaiser Z, Khalid N, Mahmood A, Rizvi ZF, Lee SY, Aqeel M
    J Hazard Mater, 2024 Dec 05;480:136262.
    PMID: 39471612 DOI: 10.1016/j.jhazmat.2024.136262
    Microplastic (MP) pollution is a growing concern, yet its impacts on agroecosystems remain poorly understood. This study investigates MP contamination in the agroecosystems of Sialkot, Pakistan, and its potential effects on the growth, physio-biochemical attributes, and yield of potato (Solanum tuberosum L.). Plant and soil samples from 10 diverse agricultural fields were collected and analyzed for MP contamination. FTIR analysis revealed widespread MP presence in the soil across all sites. Fragment, film, and fiber types dominated, with low-density polyethylene (22.42 %), high-density polyethylene (18.05 %), and polystyrene (12.3 %) being the most prevalent polymers. A significant variation in plant growth parameters was observed. The number of tubers per plant also exhibited a significant difference, as evidenced by the decline in potato yield with increasing levels of MP contamination. Potato yield showed a negative correlation with MP contamination levels. The nutrients (Zn, Cu, Ni, and Na) uptake in plant shoots was also observed to be decreased except for Mg and Mn at all sites. This study showed that MPs are contaminating our agricultural lands and they may affect growth and yield of potato. Additional research is needed to understand the underlying mechanisms and develop mitigation strategies to improve agricultural productivity and food security.
    MeSH terms: Agriculture; Environmental Monitoring; Pakistan; Soil/chemistry
  18. Ghauth S, Tan SH
    PMID: 39613851 DOI: 10.1007/s00405-024-09104-y
    BACKGROUND: The T-tube poses significant challenges for positive pressure ventilation.

    METHOD: We describe the modification of a Foley catheter by trimming off the proximal urine drainage port, and using this opening to pass a metal stylet within the catheter, providing additional rigidity and allowing easier manipulation of the catheter tip. The catheter tip is then positioned in the superior limb of the T-tube, and the balloon inflated under direct visualization to occlude the opening and allow positive pressure ventilation through the external limb of the T-tube.

    CONCLUSION: This simple yet effective technique can be considered in patients with T-tubes.

  19. Bheel N, Kumar D, Ismail FI, Salilew WM, Alwetaishi M, Waheeb SA, et al.
    Sci Rep, 2024 Nov 29;14(1):29724.
    PMID: 39614098 DOI: 10.1038/s41598-024-81345-7
    The increasing demand for cement has substantially affected the environment, and its manufacturing requires substantial energy usage. However, most countries in the world recently encountered a significant energy problem. So, researchers are exploring the use of agricultural and industrial waste resources with cementitious characteristics to minimize cement manufacturing, cut energy consumption, and contribute to environmental protection. Therefore, this research is performed on roller compacted concrete (RCC) reinforced with 5%, 10%, 15%, and 20% of corn cob ash (CCA) as substitution material with different percentage of cement and 0.25%, 0.50%, 0.75%, and 1% of jute fibre (JF) together for determining the mechanical properties and embodied carbon (EC) by applying response surface methodology (RSM) modelling. The cubical samples were prepared to achieve the targeted strength about 30 MPa at 28 days and then obtained mix proportions were employed for all combinations at various water-cement ratios to maintain roller-compacted concrete's zero slump. Results showed that at 0.50% JF and 10% CCA, the flexural strength, splitting tensile strength and compressive strengths, and modulus of elasticity of RCC obtained were 5.3 MPa, 3.8 MPa, 32.88 MPa, and 33.11 GPa at 28 days, respectively. Besides, the embodied carbon of RCC is recoded reducing with combined addition of different levels of JF and CCA as compared to control mixture. In addition, the generation of response prediction algorithms was performed using analysis of variance (ANOVA) at a threshold of significance of 95%. The coefficient of determination (R2) readings for the statistical models ranged from 96 to 99%. It is observed that the use of 0.50% of JF along with 10% of CCA as cementitious constituent in RCC provides best outcomes. Therefore, this method is a superior choice for the construction industry.
  20. Eigeland JA, Sheeran N, Jones L, Moffitt RL
    Patient Educ Couns, 2024 Nov 14;131:108492.
    PMID: 39612863 DOI: 10.1016/j.pec.2024.108492
    OBJECTIVE: Several tools exist to measure the physician-patient relationship; however few are specific to those with chronic physical health conditions, and none to date have been derived from the patient's perspective. This research aimed to develop and validate a patient-informed tool for measuring the physician-patient relationship with patients who have a chronic physical health condition.

    METHODS: Study 1: An Australian sample of participants with a diagnosed chronic physical health condition and a self-reported good physician-patient relationship completed a three round Delphi poll to determine items of the chronic condition physician-patient relationship scale (CC-PPR). Fifty-two participants completed round one, 33 completed round two, and 24 completed all three rounds. Study 2: Exploratory and confirmatory factor analysis were conducted on a separate sample (N = 226) to explore the factor structure of the CC-PPR.

    RESULTS: The CC-PPR comprised 22 items within a single-factor structure which demonstrated high internal consistency (Cronbach's α = 0.97) and sound convergent validity.

    DISCUSSION: The CC-PPR reliably measures observable, concrete, and specific physician behaviours that patients with chronic physical health conditions believe are critical in forming a good physician-patient relationship. The CC-PPR has potential application in research, educational, and self-assessment contexts, including for the evaluation and development of competence in post-graduate and professional settings.

External Links