Browse publications by year: 2024

  1. E-Vien M, Rahman USBA, Misra S, Saxena K
    Turk J Orthod, 2024 Sep 30;37(3):174-181.
    PMID: 39344824 DOI: 10.4274/TurkJOrthod.2023.2023.13
    OBJECTIVE: This study aimed to determine the correlation between pain perception and knowledge, attitude, and diet diversity in patients undergoing fixed orthodontic treatment.

    METHODS: A total of 103 patients (15-40 yrs.; 67 females, 36 males) undergoing orthodontic treatment with a 0.022-inch slot (MBT prescription) in both arches were recruited. Information on pain perception, knowledge, attitude, and diet diversity scores was collected through validated questionnaires using visual analogue scale and close-ended questions at one time point. The correlation between variables was analyzed using the Pearson's correlation coefficient.

    RESULTS: Of the patients, 48.5% were aged 15 to 19 years old, with 65% females and 73.8% of Chinese ethnicity. Approximately 90% of the orthodontic patients perceived low levels of pain from orthodontic treatment, and 98% had a positive attitude toward orthodontic treatment. The patients had a good level of knowledge (Mean: 6±0.65). Approximately 49.5% of patients reported having moderate diet diversity. No significant correlation was found between pain perception and knowledge, or pain perception and diet diversity (r=0.062, p=0.534). However, a significant weak negative correlation (r=-0.289, p<0.05) between pain perception and attitude was observed.

    CONCLUSION: Patients undergoing fixed orthodontic treatment presented with overall low pain perception, a positive attitude, and good knowledge about their treatment with moderate diet diversity. Informing the patient in advance about different orthodontic procedures encourages a positive attitude and facilitates patient cooperation. An interprofessional approach involving nutritionists can provide a holistic patient approach during orthodontic treatment.

  2. Abe SK, Nishio M, Huang HL, Leung CY, Islam MR, Rahman MS, et al.
    Public Health, 2024 Dec;237:130-134.
    PMID: 39368404 DOI: 10.1016/j.puhe.2024.09.020
    OBJECTIVES: To evaluate changes in the age at menarche in Asian populations.

    STUDY DESIGN: Retrospective cohort study.

    METHODS: We included 548,830 women from six countries in Asia. The data were sourced from 20 cohorts participating in the Asia Cohort Consortium (ACC) and two additional cohort studies: Japan Multi-institutional Collaborative Cohorts (J-MICC), and Japan Nurse Health Study (JNHS) with data on age at menarche. Joinpoint regression was used to evaluate changes in age at menarche by birth year and by country.

    RESULTS: The study includes data from cohorts in six Asian countries namely, China, Iran, Japan, Korea, Malaysia and Singapore. Birth cohorts ranged from 1873 to 1995. The mean age of menarche was 14.0 years with a standard deviation (SD) of 1.4 years, ranged from 12.6 to 15.5 years. Over 100 years age at menarche showed an overall decrease in all six countries. China showed a mixed pattern of decrease, increase, and subsequent decrease from 1926 to 1960. Iran and Malaysia experienced a sharp decline between about 1985 and 1990, with APC values of -4.48 and -1.24, respectively, while Japan, South Korea, and Singapore exhibited a nearly linear decline since the 1980s, notably with an APC of -3.41 in Singapore from 1993 to 1995.

    CONCLUSIONS: Overall, we observed a declining age at menarche, while the pace of the change differed by country. Additional long-term observation is needed to examine the contributing factors of differences in trend across Asian countries. The study could serve as a tool to strengthen global health campaigns.

    MeSH terms: Adolescent; Adult; Age Factors; Asia; Child; Female; Humans; Malaysia/epidemiology; Menarche*; Retrospective Studies; Cohort Studies; Young Adult
  3. Bein B, Chrysostomakis I, Arantes LS, Brown T, Gerheim C, Schell T, et al.
    bioRxiv, 2024 Sep 27.
    PMID: 39386456 DOI: 10.1101/2024.03.04.583385
    Museum collections harbor millions of samples, largely unutilized for long-read sequencing. Here, we use ethanol-preserved samples containing kilobase-sized DNA to show that amplification-free protocols can yield contiguous genome assemblies. Additionally, using a modified amplification-based protocol, employing an alternative polymerase to overcome PCR bias, we assembled the 3.1 Gb maned sloth genome, surpassing the previous 500 Mb protocol size limit. Our protocol also improves assemblies of other difficult-to-sequence molluscs and arthropods, including millimeter-sized organisms. By highlighting collections as valuable sample resources and facilitating genome assembly of tiny and challenging organisms, our study advances efforts to obtain reference genomes of all eukaryotes.
  4. GBD 2019 Injuries Collaborators
    Public Health, 2024 Dec;237:212-231.
    PMID: 39454232 DOI: 10.1016/j.puhe.2024.06.011
    OBJECTIVES: In this study, the trends and current situation of the injury burden as well as attributable burden to injury risk factors at global, regional, and national levels based on the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019 are presented.

    STUDY DESIGN: To assess the attributable burden of injury risk factors, the data of interest on data sources were retrieved from the Global Health Data Exchange (GHDx) and analyzed.

    METHODS: Cause-specific death from injuries was estimated using the Cause of Death Ensemble model in the GBD 2019. The burden attributable to each injury risk factor was incorporated in the population attributable fraction to estimate the total attributable deaths and disability-adjusted life years. The Socio-demographic Index (SDI) was used to evaluate countries' developmental status.

    RESULTS: Globally, there were 713.9 million (95% uncertainty interval [UI]: 663.8 to 766.9) injuries incidence and 4.3 million (UI: 3.9 to 4.6) deaths caused by injuries in 2019. There was an inverse relationship between age-standardized disability-adjusted life year rate and SDI quintiles in 2019. Overall, low bone mineral density was the leading risk factor of injury deaths in 2019, with a contribution of 10.5% (UI: 9.0 to 11.6) of total injuries and age-standardized deaths, followed by occupational risks (7.0% [UI: 6.3-7.9]) and alcohol use (6.8% [UI: 5.2 to 8.5]).

    CONCLUSION: Various risks were responsible for the imposed burden of injuries. This study highlighted the small but persistent share of injuries in the global burden of diseases and injuries to provide beneficial data to produce proper policies to reach an effective global injury prevention plan.

    MeSH terms: Adolescent; Adult; Aged; Cause of Death; Child; Child, Preschool; Female; Humans; Infant; Male; Middle Aged; Risk Factors; Incidence; Cost of Illness; Young Adult
  5. Sperna Weiland CJ, Akshintala VS, Singh A, Buxbaum J, Choi JH, Elmunzer BJ, et al.
    Dig Dis Sci, 2024 Dec;69(12):4476-4488.
    PMID: 39500841 DOI: 10.1007/s10620-024-08693-2
    BACKGROUND: Post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) is the most common complication of ERCP, with limited studies comparing combined prophylactic measures and their efficacy relative to individual patient risk profiles. This study aims to perform an individual patient data meta-analysis (IPDMA) to evaluate the contribution of patient and ERCP-related risk factors to PEP development and to identify the best prophylaxis strategies according to the patient's risk profile.

    METHODS: We systematically searched MEDLINE, Embase, and Cochrane databases until November 2022 for randomized controlled PEP prophylaxis trials. We invited authors to share individual patient data, including PEP risk profile and prophylaxes used. PEP incidence rates for different prophylaxis were calculated. Efficacy was compared using multilevel logistic regression and expressed as relative risk (RR). Subgroup analysis evaluated the role of patient and ERCP-related risk factors in developing PEP.

    RESULTS: Data from 11 studies, including 6430 patients, were analyzed. After adjusting for risk factors, rectal NSAIDs (RR 0.69, 95%CI 0.54-0.88) and peri-procedural high-volume intravenous fluid (IVF) (RR 0.40, 95%CI 0.21-0.79) were effective in reducing PEP incidence, while no benefit was noted with pancreatic duct (PD) stents (RR 1.25, 95%CI 0.91-1.73). In patients receiving rectal NSAIDs (n = 2617), difficult cannulation (RR 1.99, 1.45-2.73), contrast injection into the pancreatic duct (PD) (RR2.37, 1.68-3.32), and prior history of PEP (RR 1.90, 1.06-3.41) were associated with increased PEP risk.

    CONCLUSION: This IPDMA confirms that rectal NSAIDs and peri-procedural IVF are effective PEP prophylactic strategies. Further studies focusing on combination therapy or the development of personalized PEP risk calculators are needed to improve prophylactic strategies.

    MeSH terms: Anti-Inflammatory Agents, Non-Steroidal/administration & dosage; Anti-Inflammatory Agents, Non-Steroidal/therapeutic use; Humans; Risk Factors
  6. Hamesch K, Cahyadi O, Dimitriadis S, Hollenbach M, Acedo P, Ayari M, et al.
    PMID: 39601382 DOI: 10.1002/ueg2.12684
    BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) still has a relatively high complication rate, underscoring the importance of high-quality training. Despite existing guidelines, real-world data on training conditions remain limited. This pan-European survey aims to systematically explore the perceptions surrounding ERCP training.

    METHODS: A survey was distributed through the friends of United European Gastroenterology (UEG) Young Talent Group network to physicians working in a UEG member or associated states who regularly performed ERCPs.

    RESULTS: Of 1035 respondents from 35 countries, 649 were eligible for analysis: 228 trainees, 225 trainers, and 196 individuals who regularly performed ERCP but were neither trainees nor trainers. The mean age was 43 years, with 72.1% identifying as male, 27.6% as female, and 0.3% as non-binary. The majority (80.1%) agreed that a structured training regimen is desirable. However, only 13.7% of trainees and 28.4% of trainers reported having such a structured program in their institutions. Most respondents (79.7%) supported the concept of concentrating training in centers meeting specific quality metrics, with 64.1% suggesting a threshold of 200 annual ERCPs as a prerequisite. This threshold revealed that 36.4% of trainees pursued training in lower-volume centers performing <200 ERCPs annually. As many as 70.1% of trainees performed <50 annual ERCPs, whereas only 5.0% of trainers performed <50 ERCPs annually. A low individual trainee caseload (<50 ERCPs annually) was more common in lower-volume centers than in higher-volume centers (82.9% vs. 63.4%).

    CONCLUSIONS: The first pan-European survey investigating ERCP training conditions reveals strong support for structured training and the concentration of training efforts within centers meeting specific quality metrics. Furthermore, this survey exposes the low availability of structured training programs with many trainees practicing at lower-volume centers and 71% of all trainees having little hands-on exposure. These data should motivate to standardize ERCP training conditions further and ultimately improve patient care throughout Europe.

  7. Brooks MA, Mukherjee T, Pillai V, Khoshnood K, Kim R, El-Bassel N
    PMID: 39601928 DOI: 10.1007/s10488-024-01427-6
    This paper examines the frequency of post-traumatic stress disorder (PTSD) and factors associated with mental health counseling utilization among adult refugees and asylum-seekers in Malaysia. Participants (n = 286) were recruited using venue-based random sampling from three health clinics in 2018. Framed by Andersen's model of health care utilization, we used a multilevel logistic regression and hypothesized that predisposing factors (female, older age, not married, higher education, lived longer in Malaysia, registered refugee), greater enabling factors (easy access to healthcare, larger household income, not needing interpreter, health literacy, larger household), and greater need factors (higher PTSD symptoms) would be associated with counseling attendance. We found one-third (34.3%) of participants screened positive for PTSD and most (71.9%) never attended counseling services. Our hypothesis was partially supported. Older age was associated with counseling attendance [OR:1.03 (95% CI:1.00,1.06)]. Enabling factors associated with counseling attendance include easy access to a health facility [OR:9.82 (95% CI:3.15,30.59)] and not needing interpreter services [OR:4.43 (95% CI:1.34,14.63)]. Greater need factor/PC-PTSD score [OR:0.69 (95% CI:0.52,0.91)]; however, was associated with lower counseling attendance. Other predisposing/enabling/need factors did not show significant associations. Understanding factors associated to care can benefit health clinics address gaps in counseling utilization for refugees and asylum-seekers in Malaysia.
  8. Shrestha S, Sapkota S, Teoh SL, Kc B, Paudyal V, Lee SWH, et al.
    Support Care Cancer, 2024 Nov 27;32(12):828.
    PMID: 39601933 DOI: 10.1007/s00520-024-08989-z
    INTRODUCTION: Cancer pain management is frequently insufficient worldwide, especially in low- and middle-income countries where significant challenges related to workforce resources persist. Clinical pharmacists could potentially enhance outcomes in this context, yet their role remains largely unexplored.

    OBJECTIVES: This study aimed to assess the feasibility and acceptability of integrating clinical pharmacists into the multidisciplinary team (MDT) to manage cancer pain and assess preliminary outcomes in cancer patients receiving pain treatment. This pilot study was undertaken to inform a future definitive randomized controlled trial (RCT).

    METHODS: The protocol was registered with ClinicalTrials.gov (NCT05021393). The PharmaCAP trial was conducted in two oncology centers in Nepal, where patients were randomly enrolled into usual care (UC) or an intervention group (PharmaCAP). The latter received a clinical pharmacist-led medication review, which involved a comprehensive assessment of the patient's current medications, identification of potential drug-related problems, and personalized recommendations for optimizing pain management. This was accompanied by pain assessment, education and counseling on pain management strategies. Baseline and 4-weeks post-intervention assessments measured primary outcomes, i.e., feasibility metrics (recruitment of the patients, retention of patients, patient satisfaction). Secondary outcomes included pain intensity, health-related QoL, anxiety, depression, barriers to pain management, and medication adherence at 4 weeks.

    RESULTS: Out of 140 screened patients, 108 were evaluated for eligibility, with 16 opting out primarily due to lack of interest (n = 11) and communication barriers (n = 5). A total of ninety-two participants with cancer pain were randomized into two groups, with 91 patients successfully recruited and 85 (93.4%) completing 4 weeks post-intervention assessment). Completion rates for the UC and PharmaCAP groups were 91.3% and 93.4%, respectively. The primary feasibility outcomes were positive: 100% of patients found random allocation acceptable. Retention rates were high, with 91.3% in the UC group and 93.4% in the PharmaCAP group, despite a few dropouts due to being unreachable, COVID-related issues, and changes in treatment centers. No evidence of contamination between groups was found, as participants did not discuss interventions or influence each other's attitudes, ensuring effective isolation of interventions The PharmaCAP intervention showed significant improvement in QoL (P 

    MeSH terms: Adult; Aged; Feasibility Studies*; Female; Humans; Male; Middle Aged; Neoplasms/complications; Nepal; Pain Measurement; Patient Care Team/organization & administration; Pilot Projects; Quality of Life; Professional Role
  9. Bui TD, Munkhtumur M, Tseng SW, Lim MK, Tseng ML
    PMID: 39601952 DOI: 10.1007/s11356-024-35569-9
    Sustainable cashmere production in Mongolia needs to reduce the negative impact of production on the environment and society. However, the industry still bears responsibility for significant resource consumption and disposal and has not yet taken the necessary transformative measures to fully sustainable production transition. In this context, the production method enhancement is still insufficient although it is preparing for the transition to sustainable practices. This study aims to determine the valid attributes of sustainable production as a hierarchical structure and the interdependence relationships using a hybrid of the fuzzy Delphi method, fuzzy decision-making trial and evaluation laboratory, and analytic network process. As a result, 4 aspects and 15 criteria are validated as a sustainable production hierarchical structure. Cleaner production practices and supply chain greening are indicated as the major aspects. The practical criteria are carbon accounting, wastewater reduction, investment in recycling-related research and development, eco-design, and green manufacturing.
  10. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Inflammopharmacology, 2024 Nov 27.
    PMID: 39601986 DOI: 10.1007/s10787-024-01601-0
    The use of nonsteroidal anti-inflammatory drugs (NSAIDs), particularly diclofenac, during the COVID-19 pandemic has raised concerns due to its potential to worsen disease progression. This commentary evaluates key risks associated with diclofenac and highlights the critical role of pharmacists in mitigating adverse outcomes through careful medication management and patient education. Diclofenac poses unique risks due to its ability to generate reactive oxygen species (ROS), leading to oxidative stress and mitochondrial dysfunction. In COVID-19, a disease characterized by hyperinflammation, these effects may exacerbate systemic inflammation, contributing to severe outcomes. Moreover, diclofenac's known association with increased cardiovascular risks, such as myocardial infarction and stroke, is especially concerning in patients with COVID-19, who are predisposed to thrombotic complications. The drug's hepatotoxic potential adds another layer of concern, particularly in patients with pre-existing liver dysfunction or those at higher risk due to COVID-19-related liver involvement. Pharmacists play a pivotal role in addressing these risks by conducting thorough medication reviews and assessing patient-specific risk factors. They can guide clinicians and patients toward safer alternatives, such as ibuprofen or naproxen, which demonstrate a lower oxidative and cardiovascular burden. Patient education is equally critical; pharmacists should counsel individuals on potential adverse effects of diclofenac, such as cardiovascular symptoms, renal dysfunction, and liver complications, while advising on lifestyle modifications and adjunctive therapies to reduce NSAID dependence. Additionally, pharmacists contribute to pharmacovigilance by monitoring patients for adverse drug reactions and reporting safety concerns to improve NSAID usage guidelines during the pandemic. By adopting a personalized approach to NSAID therapy, pharmacists can minimize risks and enhance patient safety, ultimately improving outcomes in the management of COVID-19 and other inflammatory conditions. This underscores their indispensable role in optimizing care during complex clinical scenarios.
  11. Roslan FF, Yu Y, Wang M, Mohd Yusof NAN, Ooi GC, Then KL, et al.
    Cell Reprogram, 2024 Nov 27.
    PMID: 39602209 DOI: 10.1089/cell.2024.0073
    Cord blood (CB) is widely stored as a source of hematopoietic stem cells for potential future use, though its application for autologous purposes remains limited. Repurposing CB into human-induced pluripotent stem cells (hiPSCs) can broaden its utility beyond hematological conditions. This study investigated the effects of umbilical cord-mesenchymal stromal cell (UC-MSC) co-culture on CB CD34+ cells and the characteristics of the resulting hiPSCs. CD34+ cells were isolated, expanded in UC-MSC co-culture for 3 days, and reprogrammed into hiPSCs using episomal vectors. Results showed that UC-MSC co-culture significantly increased CD34+ cell numbers (p < 0.0001, n = 6), with a reduced population doubling time of 25.1 ± 2.1 hours compared with the control (p < 0.0004, n = 6). The yield of CD34+ cells was substantially higher in the UC-MSC co-culture group. The hiPSCs exhibited comparable reprogramming efficiency, pluripotency marker expression, trilineage differentiation potential, and genomic stability to CD34+ cells expanded under standard culture conditions. These findings suggest that CD34+ cells from CB, expanded in UC-MSC co-culture, can be reprogrammed into functional hiPSCs without compromising cell quality or genetic stability.
  12. Gao Z, Chee CS, Dev RDO, Li F, Li R, Gao J, et al.
    PLoS One, 2024;19(11):e0314610.
    PMID: 39602461 DOI: 10.1371/journal.pone.0314610
    College and university students often exhibit insufficient levels of physical activity, which negatively impacts their health, mental well-being, and academic performance. Social capital has emerged as a potential factor in promoting physical activity. This systematic review, conducted in line with PRISMA guidelines, examines the existing literature on the role of social capital in enhancing physical activity among college and university students. A search of the Web of Science, Scopus, SportDiscus, and PsychINFO databases identified 10 studies published by August 1, 2024, involving 2,700 students, primarily from North America and Europe. The overall quality of the included studies was high, with all scoring above 85% on quality assessments. The findings indicate that social capital, particularly strong social networks, support from family and friends, and high levels of social cohesion, is significantly associated with higher levels of physical activity among college and university students. Social capital may facilitate physical activity in group settings through mechanisms such as emotional support, role modeling, and social norms. Despite limitations within the existing research evidence, such as reliance on self-reported data and cross-sectional study designs, this review suggests that social capital holds potential for promoting physical activity in this population. Future research should prioritize the use of objective measurement tools and longitudinal designs to more accurately assess the long-term effects of social capital and explore how these findings can inform effective interventions.
    MeSH terms: Humans; Male; Social Support; Universities; Exercise*; Young Adult; Social Capital*
  13. David MK, Ali A
    Omega (Westport), 2024 Nov 27.
    PMID: 39602491 DOI: 10.1177/00302228241305487
    Spousal loss among older persons is an emerging public health concern. Older adults from Pakistan's Sindh province may be particularly vulnerable when encountering the tragedy of spousal loss due to their age. Although resilience in older persons who live in social isolation has been researched extensively, less is known about older Sindhi adults' experience of how they achieve resilience after late-life spousal loss, and what different ways of achieving resilience are used by male and female older persons. This study aims to explore how older persons achieve resilience and how ways of achieving resilience differ across gender lines. The criterion-based selection of participants was undertaken before doing interviews. Data were collected via in-depth, semi-structured interviews conducted with twenty six bereaved older adults, ranging in age from sixty two to seventy four, all living in Pakistan's Sindh province. Follow-up discussions with the participants improved the credibility of findings and contributed to the depth and breadth of the study. Employing the concept of resilience as our analytical lens, we identified social engagement, cultural activities and leisurely activities that contributed to the post spousal loss resilience in older persons.
  14. Lio EL, Maharajan MK, Rajiah K
    Int J Pharm Pract, 2024 Nov 27.
    PMID: 39603261 DOI: 10.1093/ijpp/riae066
    OBJECTIVES: Smoking remains a significant public health concern, necessitating effective smoking cessation interventions. This study explores the barriers community pharmacists face in delivering smoking cessation services in Malaysia and potential solutions to improve their contribution to public health.

    METHODS: This qualitative study employed purposive and snowball sampling to recruit community pharmacists in Malaysia. Semi-structured interviews were conducted, exploring pharmacists' perspectives on barriers, counselling approaches, follow-up strategies, and opinions on smoking cessation services. Thematic analysis was employed to identify key themes and sub-themes.

    KEY FINDINGS: Three main themes emerged from the data analysis: barriers, counselling and enhancing follow-up, and pharmacists' opinions on professional fees. Under the theme of barriers, sub-themes included underutilization by the public, poor follow-up by customers, time constraints, lack of educational materials and support, and customer perception. The counselling and enhancing follow-up theme encompassed shared decision-making, motivational intervention, follow-up via phone calls or messaging apps, and providing rebate vouchers. Pharmacists' opinions on professional fees revealed mixed perspectives, with some advocating for fees to recognize the professional service provided, while others expressed concerns about access barriers.

    CONCLUSIONS: Community pharmacists face challenges in delivering smoking cessation services, such as underutilization, poor follow-up, time constraints, and affordability. However, strategies like shared decision-making and proactive communication can enhance effectiveness. Addressing professional fees and collaborative efforts are essential to optimising these services.

  15. Yang C, Hassan HA, Omar NF, Soo TH, Yahaya ASB, Shi T, et al.
    Magn Reson Imaging, 2024 Nov 25.
    PMID: 39603395 DOI: 10.1016/j.mri.2024.110282
    OBJECTIVE: To explore the value of amide proton transfer (APT) imaging in assessing parametrial invasion (PMI) and lymph-vascular space invasion (LVSI) of cervical cancer.

    MATERIALS AND METHODS: We retrospectively analyzed the clinical and imaging data of cervical cancer patients diagnosed pathologically at our hospital from January 2021 to April 2024. All patients underwent routine magnetic resonance imaging (MRI), diffusion-weighted imaging (DWI), and APT imaging before treatment. Apparent diffusion coefficient (ADC) and APT values were measured. Based on the pathological results, patients were categorized into LVSI (+) and LVSI (-) groups, and PMI (+) and PMI (-) groups. Independent sample t-tests were used to compare the ADC and APT values between these groups. Receiver operating characteristic (ROC) curves were used to assess the sensitivity, specificity, and area under the curve (AUC) of ADC, APT, and ADC + APT in predicting PMI and LVSI. The Delong test was employed to compare the diagnostic performance among these measures.

    RESULTS: A total of 83 patients were included, with 56 in the LVSI (-) group, 27 in the LVSI (+) group, 35 in the PMI (-) group, and 16 in the PMI (+) group. The ADC values for the LVSI (+) and PMI (+) groups were significantly lower than those for the LVSI (-) and PMI (-) groups (P 

  16. Tenda ED, Henrina J, Setiadharma A, Felix I, Yulianti M, Pitoyo CW, et al.
    Eur Respir Rev, 2024 Oct;33(174).
    PMID: 39603663 DOI: 10.1183/16000617.0261-2023
    BACKGROUND AND OBJECTIVE: The obesity paradox is a well-established clinical conundrum in COPD patients. This study aimed to provide an updated analysis of the relationship between body mass index (BMI) and mortality in this population.

    METHODS: A systematic search was conducted through Embase, PubMed, and Web of Science. International BMI cut-offs were employed to define underweight, overweight and obesity. The primary outcome was all-cause mortality, and the secondary outcome was respiratory and cardiovascular mortality.

    RESULTS: 120 studies encompassed a total of 1 053 272 patients. Underweight status was associated with an increased risk of mortality, while overweight and obesity were linked to a reduced risk of mortality. A nonlinear U-shaped relationship was observed between BMI and all-cause mortality, respiratory mortality and cardiovascular mortality. Notably, an inflection point was identified at BMI 28.75 kg·m-2 (relative risk 0.83, 95% CI 0.80-0.86), 30.25 kg·m-2 (relative risk 0.51, 95% CI 0.40-0.65) and 27.5 kg·m-2 (relative risk 0.76, 95% CI 0.64-0.91) for all-cause, respiratory and cardiovascular mortality, respectively, and beyond which the protective effect began to diminish.

    CONCLUSION: This study augments the existing body of evidence by confirming a U-shaped relationship between BMI and mortality in COPD patients. It underscores the heightened influence of BMI on respiratory and cardiovascular mortality compared to all-cause mortality. The protective effect of BMI was lost when BMI values exceeded 35.25 kg·m-2, 35 kg·m-2 and 31 kg·m-2 for all-cause, respiratory and cardiovascular mortality, respectively.

    MeSH terms: Aged; Aged, 80 and over; Cause of Death*; Female; Humans; Lung/physiopathology; Male; Middle Aged; Prognosis; Risk Factors; Body Mass Index*; Risk Assessment; Protective Factors
  17. Khan I, Bilal M, Khaliq W, Khan N, Khahro SH, Memon ZA, et al.
    Sci Rep, 2024 Nov 27;14(1):29480.
    PMID: 39604467 DOI: 10.1038/s41598-024-79869-z
    Bitumen exhibits viscoelastic properties, showcasing both viscous and elastic behaviors, which are characterized by the phase angle and dynamic modulus. Issues like early fatigue fractures, rutting, and permanent deformations in bituminous asphalt pavements arise due to moisture susceptibility, high-temperature deformation, low-temperature cracking, and overloading. These distresses result in potholes, alligator cracks, and specific deformations that lead to early pavement failure, increasing rehabilitation and maintenance costs. To address these issues, this study examines the dynamic modulus and phase angle behavior of Styrene Butadiene Styrene (SBS) modified and unmodified asphalt mixtures. SBS was incorporated in various proportions, ranging from 2 to 7% by the weight of bitumen. The asphalt mixture performance tester (AMPT) was utilized to measure the dynamic modulus at temperatures of 4.4, 21.1, 37.8, and 54.4 °C, and frequencies of 0.1, 0.5, 1, 5, 10, and 25 Hz. The study found significant correlations between dynamic modulus, temperature, loading frequency, and SBS content. Additionally, Multi Expression Programming (MEPX) and regression modeling were employed to estimate the dynamic modulus of SBS-modified HMA. Results indicated that increasing SBS content up to 7% decreased penetration and ductility values by up to 46% and 56%, respectively, while raising the softening point by 63% due to increased stiffness. The blend with 6% SBS by weight of bitumen exhibited superior performance compared to other mixtures. Phase angle initially increased with rising temperature, peaking at 37.8 °C at lower frequencies, and continued to increase at higher frequencies. Isothermal and isochronal plots showed that the 0% SBS mix had a higher phase angle due to increased bitumen content. Overall, the HMA mix with 6% SBS provided the best outcomes.
  18. Hai T, Basem A, Alizadeh A, Sharma K, Jasim DJ, Rajab H, et al.
    Sci Rep, 2024 Nov 27;14(1):29524.
    PMID: 39604527 DOI: 10.1038/s41598-024-81044-3
    Optimization of thermophysical properties (TPPs) of MXene-based nanofluids is essential to increase the performance of hybrid solar photovoltaic and thermal (PV/T) systems. This study proposes a hybrid approach to optimize the TPPs of MXene-based Ionanofluids. The input variables are the MXene mass fraction (MF) and temperature. The optimization objectives include three TPPs: specific heat capacity (SHC), dynamic viscosity (DV), and thermal conductivity (TC). In the proposed hybrid approach, the powerful group method of data handling (GMDH)-type ANN technique is used to model TPPs in terms of input variables. The obtained models are integrated into the multi-objective particle swarm optimization (MOPSO) and multi-objective thermal exchange optimization (MOTEO) algorithms, forming a three-objective optimization problem. In the final step, the TOPSIS technique, one of the well-known multi-criteria decision-making (MCDM) approaches, is employed to identify the desirable Pareto points. Modeling results showed that the developed models for TC, DV, and SHC demonstrate a strong performance by R-values of 0.9984, 0.9985, and 0.9987, respectively. The outputs of MOPSO revealed that the Pareto points dispersed a broad range of MXene MFs (0-0.4%). However, the temperature of these optimal points was found to be constrained within a narrow range near the maximum value (75 °C). In scenarios where TC precedes other objectives, the TOPSIS method recommended utilizing an MF of over 0.2%. Alternatively, when DV holds greater importance, decision-makers can opt for an MF ranging from 0.15 to 0.17%. Also, when SHC becomes the primary concern, TOPSIS advised utilizing the base fluid without any MXene additive.
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