Conectar
by Ayesha Bibi, Muhammad Hamza Afandi, Azra Mehmood, Usman Ali Ashfaq, Muhammad Shareef Masoud, Mohsin Ahmad Khan, Rashid Bhatti
Hepatocellular carcinoma (HCC) has a very significant mortality rate and is one of the most common cancers worldwide. Jacaranda mimosifolia is reported to have potential antitumor activities against various human cancers. However, the effects of J. mimosifolia on HCC are yet elusive. This study aimed to investigate the anti-HCC potential of methanolic extract of J. mimosifolia leaves using in vitro and in vivo studies and a network pharmacology approach. The effect of J. mimosifolia extract was assessed on Huh-7.5 cells using MTT assay, wound healing assay, and DNA fragmentation assay. These experiments found that J. mimosifolia extract significantly suppressed Huh-7.5 cell proliferation, impaired cell migration, and induced cell apoptosis. The real-time PCR validated the upregulation of p53 and Bax, alongside the downregulation of AFP and GPC3 in Huh-7.5 cells after treatment with J. mimosifolia extract. In vivo experiments confirmed the hepatoprotective effects of J. mimosifolia extract in mice models with CCl4-induced hepatic injury. In addition, through network pharmacological analysis, J. mimosifolia was found to play a critical role against HCC via targeting multiple potential targets and pathways. Docking analysis identified apigenin and kaempferol with the lowest binding energy against PTGS2 and EGFR, respectively, while flavonol glycoside showed the lowest binding energy against MMP9. However, detailed research is needed to isolate the potential phytochemicals from J. mimosifolia against HCC.Non-communicable diseases (NCDs) have become the leading cause of mortality globally, with a sharp rise in Iran due to lifestyle changes and urbanisation. Although many NCD risk factors are modifiable, limited understanding of their determinants hinders effective prevention. To address this, the Prospective Epidemiological Research Studies in Iran (PERSIAN) Cohort was established in 2014 to study NCDs nationwide. The Sabzevar PERSIAN Cohort Study (SPECS) is the first in northeastern Iran, aiming to investigate environmental and social factors influencing NCDs in a unique regional context.
SPECS enrolled 5174 adults (aged 35–70 years) in northeastern Iran between January 2018 and January 2019 through a census and an online registration process. The baseline data collection included demographic verification, informed consent, health questionnaires, anthropometric measurements and biological samples (blood, urine, hair, nails). The annual follow-up began in April 2019, with full reassessments every 5 years over a 15-year period. The data is gathered via an active and passive follow-up, supported by trained staff and registry linkages.
Of the 5174 participants, 4241 (81%) remained in the study. Among the cohort, 54.5% were female, with a mean age of 50.5 years. The majority were married (93.5%), and nearly half had at least high-school education (46.5%) and moderate socioeconomic status (49.4%). Drug abuse history (smoking/drugs) was reported by about 15% of the sample. The mean body mass index was 26.9 kg/m², and the average blood pressure was higher in males (118.1/74.0 mm Hg) than in females (111.5/70.2 mm Hg). The common conditions included hypertension (22.8%), kidney stones (22.4%), fatty liver (15.4%) and diabetes (13.8%). Cancer had the highest treatment rate (100%), while fatty liver had the lowest (70.1%). Stroke had the highest mean age of onset (51.2 years), and epilepsy the lowest (23.7 years). All health data were self-reported.
SPECS, part of the national PERSIAN cohort initiative, is the only adult NCD-focused study in Khorasan Razavi. Its 15-year follow-up aims to generate region-specific insights into the incidence of NCDs and their risk factors. The ethnically homogeneous sample enhances statistical power, and the findings may inform culturally tailored health policies. While self-reported data have limitations due to bias, high initial participation and access to free healthcare support long-term engagement, especially among lower-income groups.
Burns are a major cause of morbidity in Yemen, and their prevention relies heavily on community knowledge and safe practices. Understanding gaps in awareness and behaviour is essential for designing effective interventions. This study assessed the knowledge, attitudes and practices (KAP) regarding burn prevention and first aid among a Yemeni community. A cross-sectional survey was conducted among 380 participants using a structured questionnaire distributed via social media and community networks. Data were collected on demographics, educational level, occupation, residential area and KAP related to household, electrical and chemical burns. Associations between participant characteristics and burn-related KAPs were analysed. Participants were predominantly female (63.7%), aged 15–45 years (79.8%), urban residents (92.9%) and university-educated (82.1%). Healthcare workers comprised 50.8% of respondents. Knowledge of burn prevention and first aid was highest among university-educated and healthcare participants, with 84.6% correctly identifying initial burn management. Unsafe practices, such as applying honey or toothpaste and improper handling of chemical or electrical injuries, were more common among less-educated, rural and nonhealthcare respondents. Urban participants demonstrated better preventive practices, while cultural reliance on traditional remedies persisted across all groups. Among predominantly urban and educated populations in Yemen, knowledge and attitudes toward burn prevention and first aid are generally favourable; however, gaps persist, particularly in rural and less-educated communities. Cultural practices and misconceptions continue to limit optimal care. These findings underscore the urgent need for culturally sensitive, literacy-appropriate, community-based interventions to improve burn prevention, first aid practices and equitable health outcomes.
Nursing leadership is crucial for empowering nurses to excel in their roles. Among various leadership approaches, strengths-based leadership is particularly effective in harnessing staff potential to meet current workplace demands. However, the benefits of this leadership style on nurses' work ability remain underexplored, and the underlying mechanisms driving this relationship have not been thoroughly investigated.
Based on the Self-Determination Theory and the Self-Validation Theory, this study aimed to examine: (1) whether nurse managers' strengths-based leadership (as perceived by bedside nurses) could foster nurses' work ability, and (2) the mediating role of a growth mindset in this association.
Structural equation modeling in AMOS software was conducted, analyzing cross-sectional data from 209 bedside nurses using the Strengths-Based Leadership Scale, the Growth Mindset Scale, and the Work Ability–Personal Radar Scale. Participants were recruited via convenience sampling from October to December 2024 across three tertiary public hospitals in Cairo and Mansoura, Egypt.
Strengths-based leadership was significantly associated with nurses' work ability. Growth mindset of nurses partially mediated the positive association between strengths-based leadership and their work ability.
This study emphasizes the role of strengths-based leadership, an underexplored yet significant leadership style in the nursing literature. It is the first study to examine the effect of strengths-based leadership on nurses' work ability, mediated by a growth mindset.
Climate change has led to extreme heat events, disproportionately affecting vulnerable populations. Heat stress during pregnancy is linked to adverse health outcomes, yet the biological mechanisms remain poorly understood. This research study aims to investigate the effect of environmental heat on maternal, fetal and infant health and examine the biological pathways linking heat stress to adverse pregnancy outcomes.
This prospective cohort study will recruit 6000 pregnant women from three districts in Sindh, Pakistan. Eligible participants ≥18 years old, will have a minimum of five scheduled visits from
The study has received ethical approval from the Aga Khan University (AKU) (Ref: 26249) and the Pakistan National Bioethics Committee (Ref: 1065/23/1736). Written informed consent will be obtained from all participants before enrolment. Referral pathways to healthcare facilities will be established to ensure timely management of pregnancy complications. Findings will be disseminated through peer-reviewed publications, scientific conferences, and engagement with policymakers and public health stakeholders to inform climate-resilient maternal health strategies. Results will also be shared with participants and communities through meetings and informal sessions to raise awareness and support evidence-based heat adaptation.
This study examined the interplay among spirituality, self-efficacy and resilience in this context.
A cross-sectional study.
A total of 178 parents of children newly diagnosed with diabetes mellitus; the instruments used for data collection were the Parental Self-Efficacy Scale for Diabetes Management, The Arabic version of The Walsh Family Resilience Questionnaire and the Spiritual Perspective Scale.
Self-efficacy had a significant positive direct effect on family resilience. Spirituality also had a significant positive direct effect on family resilience. Additionally, self-efficacy had a significant positive indirect effect on family resilience through its effect on spirituality.
The findings underscore the impact of spirituality and self-efficacy on a family resilience.
Nurses should prioritise self-care and personal reflection to enhance their spiritual well-being. This can help them better understand and empathise with their patients' spiritual needs, allowing for more effective and compassionate care.
Upon the initial diagnosis of diabetes in a child, parents undergo a profound emotional and psychological upheaval. They are faced with the daunting task of managing their child's condition while also coping with their feelings of distress, uncertainty and fear. Amidst these challenges, factors such as self-efficacy and resilience play pivotal roles in determining how parents adapt to and navigate this new reality.
Nurses can use spiritual care to give parents a sense of meaning, purpose and hope, bolstering their self-efficacy and resilience.
The relevant reporting method has been adhered to, that is, STROBE.
In our research, data collection is assisted by nurses working in community-based settings.
To examine the relationship between moral courage, personality traits and organisational climate among nurses.
A cross-sectional, descriptive-analytical study.
A total of 264 nurses from three hospitals in Semnan, Iran, participated in the study. Stratified random sampling was used, and data were collected in summer and autumn 2024 through the Moral Courage Scale, Organisational Climate Scale and Personality Traits Inventory. Data analysis was conducted using SPSS 26.
Moral courage was positively associated with a supportive organisational climate. A weak inverse relationship was noted with agreeableness, while other personality traits showed no notable influence. Moral courage was more prevalent among married nurses, supervisors and those with permanent contracts.
A positive organisational climate enhances nurses' moral courage, emphasising the need to foster supportive work environments. While agreeableness may slightly inhibit moral courage, other personality traits did not show a significant effect.
Understanding the contributors to moral courage can assist healthcare institutions in developing training and policies that empower nurses to act ethically and confidently in challenging situations, ultimately improving care quality.
Problem addressed: The study explores the relationship between moral courage, personality traits, and organisational climate among nurses in clinical settings. Main findings: Organisational climate significantly impacts moral courage, while most personality traits do not play a major role. Where and on whom will the research have an impact? These findings can inform hospital leaders, educators, and policymakers in shaping ethics-centred strategies to support nurses in clinical settings.
This study adheres to EQUATOR guidelines for cross-sectional studies.
This study did not include patient or public involvement in its design, conduct or reporting.
Age acceleration in survivors of breast cancer is a critical issue because cancer and its treatment can increase structural and numerical chromosomal aberrations, while simultaneously shortening telomere length and changing ageing phenotype. Therefore, the current study will be using machine learning architectures to accurately predict the factors that contribute to age acceleration among survivors of breast cancer.
The Cancer Survivors’ Trajectories of Ageing Research (C*STAR) is a hospital-based cross-sectional study involving multi-ethnic Malaysian survivors of breast cancer and a non-breast cancer control group, frequency-matched by age group (±5 years), sex and ethnicity. The three main stages of this study will be conducted in the predictive model development. First, a set of validated questionnaires will be used to collect the data on modifiable factors of ageing phenotypes and behavioural determinants of health. Second, 3 mL non-fasting blood samples will be collected, and lymphocytes will be isolated to determine telomere length using real-time PCR as a biomarker of age acceleration. Lastly, a machine learning architecture will be deployed to identify modifiable factors that may contribute to age acceleration in survivors of breast cancer and controls, with these factors used as input and ageing biomarkers of telomere length as output. The study outcomes may serve as guidance to enhance the quality of life of survivors of breast cancer and hinder the recurrence of cancer while ageing successfully.
Ethical approval was obtained from the Research Ethics Committee, Universiti Kebangsaan Malaysia (JEP-2022-700) to carry out this study. Written informed consent will be obtained from each survivor of breast cancer and each cancer-free woman prior to participation. The results of this study will be published for future research and clinical applications.
A significant number of women die from pregnancy and childbirth complications globally, particularly in low and middle-income countries. Receiving at least four antenatal care (ANC) visits is important in reducing maternal and perinatal deaths. However, few studies have investigated the factors linked to the completion of ≥4 ANC visits in Nepal.
To investigate factors associated with attending ≥4 ANC visits in Sarlahi district of southern Nepal.
A secondary analysis was conducted on data from the Nepal Oil Massage Study (NOMS), a cluster-randomised, community-based longitudinal pregnancy trial including 34 village development committees. We investigated the associations between attendance of ≥4 ANC visits and socioeconomic, demographic, morbidity and pregnancy history factors using logistic regression; generalised estimating equations were used to account for multiple pregnancies per woman. All pregnancies resulting in a live birth (LB) (n=31 867) were included.
Attendance of ≥4 ANC visits.
31.4% of those pregnancies received 4+ ANC visits. Significant positive associations included socioeconomic factors such as participation in non-farming occupations for women (OR=1.52, 95% CI 1.19 to 1.93), higher education (OR=1.79, 95% CI 1.66 to 1.93) and wealth quintile (OR=1.44, 95% CI 1.31 to 1.59), nutritional status such as non-short stature (OR=1.17, 95% CI 1.07 to 1.27), obstetric history such as adequate interpregnancy interval (OR=1.31, 95% CI 1.19 to 1.45) and prior pregnancy but no LB (OR=2.14, 95% CI 1.57 to 2.92), symptoms such as vaginal bleeding (OR=1.35, 95% CI 1.11 to 1.65) and awareness of the government’s conditional cash transfer ANC programme (OR=2.26, 95% CI 2.01 to 2.54). Conversely, identifying as the Shudra caste (OR=0.56, 95% CI 0.47 to 0.67), maternal age below 18 or above 35 (OR=0.81, 95% CI 0.74 to 0.88; OR=0.77, 95% CI 0.62 to 0.96), preterm birth (OR=0.41, 95% CI 0.35 to 0.49), parity ≥1 (OR=0.66, 95% CI 0.61 to 0.72) and the presence of hypertension during pregnancy (OR=0.79, 95% CI 0.69 to 0.90) were associated with decreased likelihood of attending ≥4 ANC visits.
These findings demonstrate the importance of socioeconomic factors, including education, caste, wealth and occupation in completion of ≥4 ANC visits. In addition, biological factors including birth spacing, pregnancy complications and nutrition are important. The association with awareness of the government’s conditional cash transfer programme is a motivation for a full evaluation of whether expanding that programme might improve prenatal care.
The clinicaltrial.gov trial registration number for NOMS was NCT01177111.
To explore the perceptions, challenges and strategies of caregivers in managing screen time among children younger than 5 years in the urban and rural areas of Tamil Nadu, India.
Qualitative study using focus group discussions (FGDs).
Rural Health and Training Centre in Vayalanallur, Thiruvallur district and Urban Health and Training Centre, Thiruvanmyur in Chennai district, Tamil Nadu, India.
54 caregivers (27 rural, 27 urban, 46 mothers, 6 grandmothers, 2 fathers) of children younger than 5 years whose screen time exceeded WHO age-specific recommendations participated. Six FGDs were conducted, each with 8–10 participants.
FGDs were conducted in familiar community locations near the participants’ homes to ensure comfort and accessibility. The audio recordings were transcribed verbatim in Tamil and translated into English and analysed using inductive thematic analysis. Coding was manually performed by two independent researchers.
Six major themes emerged: (1) circumstances leading to screen exposure, (2) perceived advantages, (3) perceived disadvantages, (4) challenges in reducing screen time, (5) methods adopted to reduce screen time and (6) strategies for sustaining reduction. Safety concerns, lack of play space and the need to manage household chores were commonly cited reasons for screen use. Although most caregivers were aware of the potential harms, screens were often used to feed or pacify children. Emotional resistance from children, inconsistent family norms and grandparents’ screen use were common barriers. Caregivers employed strategies, such as limiting access, engaging in outdoor play and enrolling children in structured activities. Urban–rural differences were minimal, and thematic saturation was achieved after six FGDs.
Caregivers face multiple, structural and family level challenges in managing screen time among young children. Awareness and interventions need to be tailored to address family dynamics, caregiver fatigue and lack of alternatives. Health providers, community workers and policymakers should collaborate to offer structured support, promote screen-free engagement and ensure child-friendly spaces in urban and rural communities.
This study aimed to quantify how patient risk factors relate to COVID-19 severity across categories 1–5 in a prospective, hospital-based cohort. We hypothesised that greater severity would be associated with higher odds of intensive care unit (ICU) admission and in-hospital mortality. Secondary aims were to assess associations with age, viral variants, symptom clusters, lymphocyte count, fasting blood glucose and cytokine profiles.
Prospective cohort study.
A secondary-care/tertiary-care hospital and linked community settings in Cheras, Kuala Lumpur, Malaysia.
This study was nested within the COVGEN project, a prospective COVID-19 cohort conducted at Hospital Canselor Tuanku Muhriz UKM (HCTM), Cheras Health Clinic and the Bandar Tun Razak COVID-19 Assessment Centre in Cheras, Kuala Lumpur, Malaysia, from 1 August 2021 to 31 October 2022. 2532 participants were enrolled at baseline. Eligible participants were Malaysian citizens aged 12–18 years (paediatric/adolescent) or ≥18 years who had reverse transcription-polymerase chain reaction–confirmed COVID-19 at recruitment and resided in Kuala Lumpur or Selangor. Patients who had a clinically unstable condition and those who declined participation (personally or via a next-of-kin or legal representative) were excluded. This analysis included 559 patients hospitalised at HCTM; after excluding five with incomplete questionnaires, 554 remained for analysis (413 admitted to general wards and 141 to ICUs). Categories 3–5 comprised hospitalised patients, whereas categories 1–2 included hospitalised individuals and a subset recruited from community settings.
Primary outcomes included disease severity (categories 4–5 vs 1–3), ICU admission and in-hospital mortality. Secondary outcomes included associations with age strata, viral variant (delta vs omicron), symptom clusters, lymphocyte count, fasting blood glucose and cytokines: interferon gamma-inducible protein 10, interferon gamma, interleukins 8, 10, 2, 6 and 7 and tumour necrosis factor alpha.
141 of 554 (25.5%) patients required ICU care. Compared with milder categories, category 5 was associated with markedly higher odds of ICU admission (OR 204.50; 95% CI 37.54 to 1114.18; p55 versus
An increasing clinical severity category was strongly associated with ICU admission and mortality. Age, delta infection, specific symptom clusters, lymphopenia, hyperglycaemia and pro-inflammatory cytokines identified higher-risk patients, supporting risk-stratified management and prioritisation for enhanced monitoring.
by Saad Al-Lahhaam, Raghad Dweikat, Tala Nazzal, Aman Maraqa, Joud Khalil, Tala Albadawi, Raghad Doufish, Wa'd Amer, Mustafa Ghanim, Mohammad Abuawad, Amer Ghrouz, Samar Alkhaldi, Laith El-lahham, Majdi Dwikat, Maha Rabayaa, Malik Alqub
BackgroundTinnitus is a prevalent condition worldwide, particularly among adolescents, that has a substantial impact on quality of life, yet it remains an understudied issue.
ObjectivesThis study aims to determine the prevalence of tinnitus and its associated risk factors among Palestinian adolescents aged 15–18.
MethodsA cross-sectional study was conducted from January to March 2025. A convenience sample of participants was recruited. The study utilized the European School for the Interdisciplinary Tinnitus Research Screening Questionnaire.
ResultsA total of 1,131 participants were enrolled in the study, with 64.5% being females. The prevalence of tinnitus among the study sample was 532, representing 47% of the population. Females had a higher prevalence of tinnitus, with 370 affected (50.7%) compared to males (40.4%). Significant associations were found between tinnitus and several factors: age, positive family history of tinnitus (threefold increased risk), sensitivity to external sounds (2.7 times higher likelihood), slight hearing difficulty in noisy environments (1.7 times higher risk), pain symptoms (double the risk), and difficulty falling asleep (1.8 times higher risk). Notably, the majority of affected participants (71.5%) had never sought professional care for their tinnitus.
ConclusionAlthough Tinnitus is common among Palestinian adolescents aged 15–18 years, the majority of affected participants did not seek professional care for tinnitus. These findings highlight the importance of conducting further research to shed insight into this prevalent and neglected health priority.
by Pureheart Ogheneogaga Irikefe, Mohammad Falahat, Ahmad Danial Zainudin, Ihtisham Ullah, Nohman Khan, Bernard Ojonugwa Anthony
With progress toward the 2030 Agenda faltering, many see innovation as a key to sustainable development. The Association of Southeast Asian Nations (ASEAN) bloc represents a unique opportunity to examine how innovation capabilities drive sustainability in diverse economic and developmental contexts. Using panel data for ASEAN countries from 2011 to 2022, this study breaks down innovation into the seven pillars of the Global Innovation Index (GII) and investigates their impact on the Sustainable Development Goal (SDG) Index; with the objective of identifying which GII pillars most strongly predict SDG, while examining the moderating role of government effectiveness and controlling the impacts of gross national income per capita and foreign direct investment. Fixed effects models were used to analyse the data and supplemented by Driscoll-Kraay standard errors, addressing unobserved heterogeneity and cross-sectional dependence. Results reveal that only Institutions and Infrastructure pillars exert a consistently positive impact on SDG performance. In contrast, Creative Outputs have a negative impact. Importantly, Government Effectiveness reverses the negative impact of Creative Outputs, so that this pillar becomes positive for SDG achievement, without significant moderation of the other six GII pillars when controlling for year effects. In conclusion, these findings contest the efficacy of universal innovation policies and underscore the imperative for nuanced, context‑specific ones. It is recommended that ASEAN governments prioritize institutional and infrastructural investments and develop tailored regulatory frameworks, such as green intellectual property regimes and digital economy standards, to harness the creative economy for inclusive, sustainable growth by explicitly integrating innovation strategies with governance reforms.by Teruo Nakamura, Tomohiro Shibata, Ken-ichi Ito
Anaplastic thyroid cancer (ATC) is a rare but highly aggressive malignancy with a dismal prognosis. Although recent advances in targeted therapies have modestly improved survival, the molecular mechanisms driving ATC progression remain incompletely elucidated. Epithelial cell adhesion molecule (EpCAM), a multifunctional cell-surface protein, is implicated in proliferation, migration, and stemness in various cancers. However, its role in thyroid cancer progression remains unclear. In this study, we investigated the function of EpCAM in thyroid cancer cell lines of varying differentiation status. EpCAM expression was significantly elevated in ATC cell lines compared with differentiated thyroid cancer (DTC) lines. EpCAM knockdown by siRNA suppressed proliferation, adhesion, motility, and invasion in ATC cells, but had minimal effects on DTC cells. Morphological analyses revealed that EpCAM silencing induced differentiation features, including follicle-like structure formation and increased expression of thyroid differentiation markers such as thyroglobulin and PAX8 in ATC cells. Furthermore, EpCAM inhibition decreased mesenchymal marker expression, reduced filopodia formation, and suppressed extravasation of cancer cells into the lung in an in vivo mouse model. Mechanistically, EpCAM knockdown attenuated epithelial–mesenchymal transition (EMT)-related pathways but did not affect major proliferation signaling cascades in ATC cells. These findings suggest that EpCAM promotes dedifferentiation and metastatic potential in ATC through EMT modulation. Our results provide new insights into the role of EpCAM in thyroid cancer biology and highlight its potential as a therapeutic target in ATC. Further studies are warranted to elucidate the mechanisms linking EpCAM to anaplastic transformation and to explore the therapeutic efficacy of EpCAM-targeting strategies in aggressive thyroid cancers.by Mohammad Z. Darabseh, Aseel Aburub, Ragad Alkaraki, Abdullah Saber Alshammari, Yazan Almansi, Ghaith Dalalah, Csaba Melczer, Pongrác Ács
To evaluate pulmonary function and respiratory muscle strength in Mejwez players compared to predicted norms, and to assess the influence of smoking behaviours on these outcomes. A cross-sectional study was conducted involving adult Mejwez players. Spirometric parameters (forced expiratory volume in one second (FEV₁), forced vital capacity (FVC), and FEV₁/FVC) and respiratory pressures (maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP)) were measured and compared to predicted values. Multiple linear regression was used to assess the impact of smoking behaviours on respiratory outcomes. Mejwez players demonstrated significantly higher FEV₁ (+0.38 L, pby Seid Mohammed Abdu, Hussen Abdu, Endris Seid Muhaba, Ebrahim Msaye Assefa, Gosa Mankelkl
BackgroundThe sciatic nerve (SN), the longest and largest nerve in the body, arises from the L4-S3 nerve roots and exits as a single trunk below the piriformis muscle through the greater sciatic foramen. However, variations in its anatomy are common, believed to originate from embryological development. These variations show significant racial and geographical differences, which have often been overlooked in previous review studies. Therefore, this meta-analysis aims to address this gap by systematically reviewing global data to evaluate the impact of race on sciatic nerve variations.
MethodsA systematic review and meta-analysis were conducted to assess the pooled prevalence of SN variations among racial subgroups. A comprehensive literature search was performed using PubMed, Google Scholar, Hinari, and additional sources, including major anatomical journals and cross-referenced articles. Subgroup analyses by region and country were also conducted using a random-effects model. Heterogeneity was assessed with the Cochrane Q test and the I² statistic.
ResultsType A, considered the normal pattern, had the highest pooled prevalence at 86%. The remaining 14% represented variations of the sciatic nerve (SN). Among these, Type B was the most common at 7%, followed by Type C and G each observed in 2% of limbs, while less frequent variations included Type Type D (1%), Type E (0%), and Type F (0% (0–1)). Racial analysis showed that SN variations occurred in 15% of Asians, 12% of Whites, and 13% of Blacks. Regarding continents, the highest prevalence was in Asia with 15%, the second highest prevalence was observed in Europe with 14%, followed by Africa with 13%, and the lowest in America with 11%. No significant differences were found among the races and continents. However, East Asia showed the highest significant prevalence, with China at 35% and Japan at 32%.
ConclusionThis review revealed only modest and statistically non-significant differences in the prevalence of sciatic nerve variations across broad racial and continental groups. In contrast, substantial variation was observed at the regional level, with particularly high prevalence rates in East Asian countries, specifically China and Japan. These findings suggest that regional factors contribute more to the observed variations than racial factors.
by Forest W. Arnold, Leslie Wolf Parrish, Subathra Marimuthu, Jamie Findlow, Angela Quinn, Vidyulata Salunkhe, Daniya Sheikh, Phillip Bressoud, T’shura Ali, Dawn Balcom, Mohammad Ali, Ryan S. Doster, Deepti Deepti, Mohammad Tahboub, Fama Ndiaye, Jay Lucidarme, Stephen A. Clark, Ray Borrow, Paul Balmer, Steven Gootee, for the CERID study group
BackgroundNeisseria meningitidis is a cause of meningitis and outbreaks of it among young adults, especially college students. Rates of nasopharyngeal colonization and prevalence of specific capsular groups vary with age, geography as well as time, and may be influenced by meningococcal vaccination. The objective of this study was to measure the change in colonization rate, and define which meningococcal genogroups were present, in college students over a 3-month semester.
MethodsThis was a prospective, longitudinal cohort study with sequential oropharyngeal swabbing among college students at the University of Louisville (UofL) in Louisville, Kentucky from August to November 2022. Participants were ≥18 years of age and were enrolled within 48 hours of moving to campus-affiliated housing. Oropharyngeal swabs were collected at enrollment, one month and at three months. Samples were screened for N. meningitidis, and isolates were characterized using phenotypic and genotypic methods. Behavior questionnaires were obtained at each visit to identify risk factors for N. meningitidis colonization.
ResultsA total of 1047 participants were seen initially, of whom 821 attended all three visits. The baseline colonization rate was 3.5% followed by 3.9% after one month and 5.7% after three months. The genogroups of recovered isolates were capsule null (48%), B (38%; of which 11% were expressing capsule) and E (12%). No genogroup ACWY isolates were recovered. A total of 36% of participants had a history of receiving at least one MenB vaccine dose and 74% had a history of receiving at least one MenACWY vaccine. Risk factors for N. meningitidis nasopharyngeal carriage included being a second-year student, living on campus for the second year, smoking/vaping, kissing and sexual contact.
ConclusionsAn increase in N. meningitidis colonization over the 3-month semester was observed from 3.5% to 5.7%. The overall proportion of student carriers was significantly lower, and there were no genogroup A, C, W or Y strains isolated compared to studies conducted prior to the availability of meningococcal vaccines and the COVID-19 pandemic. However, genogroup B carriage, transmission and acquisition were almost identical to pre-COVID pandemic studies. This study reinforces the importance of periodic epidemiological monitoring of carriage as well as disease.
by Muhammad Syafiq Kunyahamu, Aziah Daud, Ijlal Syamim Mohd Basri, Tengku Alina Tengku Ismail, Mohd Faiz Md Tahir
IntroductionMental health problems among health workers are a growing concern globally, including in Malaysia. Despite the availability of mental health services, some health workers do not seek professional help. This study aims to determine the level of health workers’ intention to seek professional help, examine the barriers they perceive, and identify predictors of mental health help-seeking intention.
MethodsThis cross-sectional study involved 470 health workers in the East Coast region of Peninsular Malaysia. Data was collected using a self-administered questionnaire. Linear regression analysis was employed to identify the predictors of professional help-seeking intention.
ResultsThe mean score for mental health help-seeking intention was 4.90 (SD = 1.03). Perceived need for help positively predicted help-seeking intention (B = 0.532, p Conclusions
This study highlights the roles of the perceived need for help and perceived stigma barriers in predicting health workers’ help-seeking intentions, offering a basis for targeted interventions and policies to enhance mental health support within Malaysian healthcare settings.
Keloids are chronic fibroproliferative skin disorders with high recurrence rates and limited treatment options, yet reliable diagnostic biomarkers are lacking. Current classification systems rely heavily on clinical observation, underscoring the need for objective, noninvasive tools. In this exploratory study, serum-based 1H nuclear magnetic resonance (NMR) measurement combined with short-time Fourier transform (STFT) for time-frequency analysis was performed, followed by principal component analysis (PCA), to investigate potential patient subgroups. Serum samples from 29 patients were analysed and PC1 scores suggested two potential patient subgroups. Retrospective analysis showed that these subgroups differed primarily in keloid aetiology: one group predominantly included cases arising from unclear or minimal causes (e.g., acne, folliculitis), whereas the other comprised cases following clear traumatic events (e.g., surgery). Although most clinical variables showed no significant differences, significant differences in aetiology and Japan Scar Workshop Scar Scale (JSS) scores support the biological relevance of this separation of subgroups. These findings suggest that the time-frequency features of NMR signals from serum samples capture systemic characteristics associated with keloid pathophysiology. If validated in larger cohorts, this approach may serve as a noninvasive adjunct to clinical assessment and lay the foundation for objective patient stratification and precision-guided treatment strategies.
Global ageing populations require accessible, non-invasive tools for early detection and monitoring of neurological chronic and neurodegenerative diseases. Current diagnostic methods face limitations including invasiveness, high costs and infrequent clinical assessments. The human voice has emerged as a promising digital biomarker, with vocal characteristics reflecting physiological and cognitive changes associated with conditions like dementia and Parkinson’s disease. While artificial intelligence (AI) and machine learning have enabled sophisticated vocal analysis, the literature remains fragmented without comprehensive synthesis. This scoping review protocol delineates a systematic approach to collate and synthesise existing research on the application of AI-driven audio biomarkers for the detection and management of neurological diseases (eg, cognitive decline, Parkinson’s disease, Alzheimer’s, dementia and depression) in older adults aged 65 years and above.
This scoping review will be conducted in accordance with the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) guidelines and the methodological framework proposed by Arksey and O’Malley, incorporating recent methodological advancements. The eligibility criteria for study selection will be formulated using the PCC (Population, Concept, Context) framework. A comprehensive literature search will be performed across several electronic databases, including PubMed/MEDLINE, Scopus, Web of Science, IEEE Xplore, Embase, Compendex, CINAHL, Scientific Information Database (SID), Magiran, IranMedex and Barakat Knowledge Network System (BKNS). The search will encompass peer-reviewed articles published in Persian and English from 1 January 2012 to 31 March 2026. Two independent reviewers will screen titles, abstracts and full texts and extract data according to the predefined PCC-based eligibility criteria. Discrepancies will be resolved through discussion or, if necessary, by consultation with a third reviewer. The results will be synthesised and presented narratively, accompanied by summary tables, charts and figures to address each research question.
The Research Ethics Committee of Tabriz University of Medical Sciences approved the protocol for this scoping review (approval number: IR.TBZMED.VCR.REC.1404.223). They concluded that since the review involves only analysis of existing literature without direct patient involvement or clinical procedures, it meets the relevant ethical standards. Results from the review will be shared through peer-reviewed journals and conference presentations to provide valuable insights for researchers, clinicians and policymakers on the use of audio-based biomarkers in older adults.
Not registered.
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