1,682 results match your criteria: "Study Centre[Affiliation]"

A large volume of atmospheric microplastics (MPs) has been observed worldwide and is considered an emerging global environmental issue. Nevertheless, no significant assessment of the atmospheric deposition of MPs in Pakistan has been reported yet. The present study was designed to highlight the source, type, and spatial distribution of MPs in atmospheric fallout in Lahore, Pakistan.

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Over the past few decades, dengue fever has emerged as a significant global health threat, affecting tropical and moderate climate regions. Current vaccines have practical limitations, there is a strong need for safer, more effective options. This study introduces novel vaccine candidates covering all four dengue virus (DENV) serotypes using virus-like particles (VLPs), a proven vaccine platform.

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This study explores the complex pathogenesis of pituitary adenomas (PAs), prevalent intracranial tumors in the pituitary gland. Despite their generally benign nature, PAs exhibit a diverse clinical spectrum involving hormone hypersecretion and varying invasiveness, hinting at multifaceted molecular mechanisms and abnormalities in tumorigenesis and gene regulation. The investigation focuses on the Ki-67 labeling index, rs2236750, rs34037914, and rs267606574 polymorphisms, alongside serum levels of SSTR2, SSTR5, and AIP, to discern their association with PAs.

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Contrary to the initial hypothesis, Flemish adolescents who reported consuming organic food at least 7.5 times per week did not exhibit reduced internal exposure to the tested recently used pesticides. After adjustment for gender, age, country of origin, socioeconomic status, body mass index, consumption of high-fat foods and foods linked to organic food consumption, and concerning organochlorine derivatives and lead, additional adjustment for the duration of breastfeeding expressed in weeks, they displayed slightly elevated internal exposure to organochlorine derivatives, lead, methyl arsenate, and toxic relevant arsenic.

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Background: Loss to follow-up in long-term epidemiological studies is well-known and often substantial. Consequently, there is a risk of bias to the results. The motivation to take part in an epidemiological study can change over time, but the ways to minimize loss to follow-up are not well studied.

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The benefits of regular physical exercise on cancer prevention, as well as reducing fatigue, treatment side effects and recurrence, and improving quality of life and overall survival of cancer patients, are increasingly recognised. Initial studies showed that the concentration of extracellular vesicles (EVs) increases during physical activity and that EVs carry biologically active cargo. These EVs are released by blood cells, skeletal muscle and other organs involved in exercise, thus suggesting that EVs may mediate tissue crosstalk during exercise.

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This study investigated the adsorption of Oxytetracycline (OTC) from pharmaceutical wastewater using a kappa carrageenan based hydrogel (KPB). The aim of the present study was to explore the potential of KPB for long-term pharmaceutical wastewater treatment. A sustainable adsorbent was developed to address oxytetracycline (OTC) contamination.

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Identification of Emerging Per- and Polyfluoroalkyl Substances (PFAS) in E-waste Recycling Practices and New Precursors for Trifluoroacetic Acid.

Environ Sci Technol

September 2024

MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.

Electronic waste is an emerging source of per- and polyfluoroalkyl substance (PFAS) emissions to the environment, yet the contribution from hazardous recycling practices in the South Asian region remains unclear. This study detected 41 PFAS in soil samples from e-waste recycling sites in Pakistan and the total concentrations were 7.43-367 ng/g dry weight (dw) (median: 37.

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Background: Pregnant women are more vulnerable to the severe effects of COVID-19 compared to their non-pregnant peers. Early in the pandemic, there was a rise in cesarean deliveries and preterm births among infected pregnant women. This study aims to evaluate whether there were any changes in obstetric interventions during the first two waves of the pandemic in Belgium.

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End-of-life vehicle dismantling activity emits large quantities of phthalates and their alternatives: New insights on environmental sources and co-exposure risks.

Environ Int

August 2024

MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.

Article Synopsis
  • Automotive interiors release various chemicals, particularly plasticizers, raising concerns about health risks for end-of-life vehicle (ELV) dismantlers.
  • Dust samples from dismantling workshops showed much higher plasticizer concentrations compared to regular households and university dorms, indicating a significant occupational hazard.
  • Workers in ELV dismantling may face up to five times the daily intake of these harmful substances compared to the general population, highlighting the need for more research into their toxic effects.
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Background: Current tuberculosis treatment regimens primarily rely on phenotypic drug susceptibility testing and rapid molecular assays. Although whole-genome sequencing (WGS) offers a promising alternative, disagreements between phenotypic and molecular testing methods remain. In this retrospective study, we compared the phenotypic and WGS-predicted drug resistance profiles of paired isolates with small genetic distances (≤10 single nucleotide variants) obtained from patients with longitudinal single-episode or recurrent tuberculosis.

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Article Synopsis
  • The study examined the growth of two plant species, Conocarpus erectus and Dodonaea viscosa, when grown in varying proportions of industrial solid waste and garden soil.
  • C. erectus demonstrated superior growth and ion uptake compared to D. viscosa, particularly at a 5% industrial waste ratio, with significant growth increases noted over four months.
  • The research identified optimal soil ratios for establishing these plants on barren lands contaminated with industrial waste, suggesting a 10:90 ratio for D. viscosa and 20:80 for C. erectus to enhance restoration efforts in industrial areas.
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Article Synopsis
  • Acupuncture is a treatment that has been used to help with brain-related issues like headaches, anxiety, and fatigue, especially in people with long COVID.
  • Researchers studied multiple trials to see if acupuncture could effectively help these problems in long COVID patients.
  • The study found that acupuncture helped improve fatigue and other symptoms more than standard medications or fake treatments.
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Objective: Regardless of having desired therapeutic properties many of the recently approved drugs are removed from the developmental pipeline for their clinical use due to low solubility and permeability. Conventional dosage forms are found relatively unsuitable for achieving desired pharmacokinetic and pharmacodynamics profiles. Cilnidipine is 1,4 dihydropyridine derivative calcium channel blocker used for the treatment of hypertension.

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Identification of cytokine signatures in HIV‑infected individuals with and without co‑infection.

Biomed Rep

September 2024

Division of Tropical and Infectious Disease, Department of Internal Medicine, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin Central Hospital, Bandung, West Java 40161, Indonesia.

Individuals with human immunodeficiency virus (HIV) infection are susceptible to immune system dysregulation, particularly during co-infection with (MTB). Although there is an association between cytokine profiles and HIV-MTB co-infection, little is known about the cytokine-related host immune response mechanism to HIV-MTB co-infection. Therefore, the present study aimed to analyze expression of cytokines IL-17A, IFN-γ, TNF, IL-2, IL-10, IL-6 and IL-4 in individuals with HIV-MTB co-infection.

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Brainwide Anatomical Connectivity and Prediction of Longitudinal Outcomes in Antipsychotic-Naïve First-Episode Psychosis.

Biol Psychiatry

January 2025

Turner Institute for Brain and Mental Health, School of Psychological Science, Monash University, Clayton, Australia; Monash Biomedical Imaging, Monash University, Clayton, Australia.

Background: Disruptions of axonal connectivity are thought to be a core pathophysiological feature of psychotic illness, but whether they are present early in the illness, prior to antipsychotic exposure, and whether they can predict clinical outcome remain unknown.

Methods: We acquired diffusion-weighted magnetic resonance images to map structural connectivity between each pair of 319 parcellated brain regions in 61 antipsychotic-naïve individuals with first-episode psychosis (15-25 years, 46% female) and a demographically matched sample of 27 control participants. Clinical follow-up data were also acquired in patients 3 and 12 months after the scan.

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Over the past three decades, substantial advancements have occurred in non-invasive brain stimulation (NIBS). These developments encompass various non-invasive techniques aimed at modulating brain function. Among the most widely utilized methods today are transcranial magnetic stimulation (TMS) and transcranial electrical stimulation (TES), which include direct- or alternating-current transcranial stimulation (tDCS/tACS).

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The digital economy has had an impact on the female employment rate over time. Currently, the researchers are more interested in investigating the impacts of the digital economy by focusing on its various aspects of female employment. The current study is motivated by this renewed interest to investigate the impact of the digital economy on female employment rates in Asian Developing Countries from 1990 to 2021.

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The forensic potential of environmental DNA (eDNA) in freshwater wildlife crime investigations: From research to application.

Sci Justice

July 2024

School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, UK; Forensic Research Institute, Liverpool John Moores University, Byrom Street, Liverpool, UK. Electronic address:

Environmental DNA (eDNA) is widely used in biodiversity, conservation, and ecological studies but despite its successes, similar approaches have not yet been regularly applied to assist in wildlife crime investigations. The purpose of this paper is to review current eDNA methods and assess their potential forensic application in freshwater environments considering collection, transport and persistence, analysis, and interpretation, while identifying additional research required to present eDNA evidence in court. An extensive review of the literature suggests that commonly used collection methods can be easily adapted for forensic frameworks providing they address the appropriate investigative questions and take into consideration the uniqueness of the target species, its habitat, and the requirements of the end user.

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Organophosphate esters (OPEs) are widely used as substitutes for brominated flame retardants and characterized as emerging contaminants. Due to their toxicity and persistent nature, OPEs are becoming a matter of greater concern worldwide. However, information about the pollution profile of OPEs and associated ecological risks is still scarce in environmental matrices of the South Asian region, particularly Pakistan.

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The early stress response by AP-1 (FOS/JUN), supported by upregulation of c-Myc and involved in cell-fate changes and adaptation to hostile environments, is increased in cancer. The review shows the biphasic character of this response with negative feed-back typically lasting a few hours as a feature of the genome regulation by self-organising criticality. It involves  rapid splitting of the pericentromeric heterochromatin clusters, opening of the active chromatin, and a massive transcription acceleration wave.

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The pathophysiology of chronic wounds related to diabetes mellitus is a result of a series of complications induced by hyperglycemia. The symptoms include impaired growth factor production, decreased keratinocyte proliferation and migration, reduced angiogenesis and cytokine synthesis, lowered matrix metalloproteinase (MMP) production, neuropathy, reduced nitric oxide synthase production, decreased fibroblast synthesis and migration, and impaired inflammatory cell functions. This multifaceted mechanism of diabetic wounds needs a suitable novel topical formulation that can deliver the active constituent by a controlled means, target the various stages of wound healing, absorb the wound exudates, and prevent secondary infections.

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Opioid prescribing requirements to minimize unused medications after an emergency department visit for acute pain: a prospective cohort study.

CMAJ

July 2024

Study Centre in Emergency Medicine (Daoust, Paquet, Huard, Lessard, Cournoyer), Centre intégré universitaire de santé et de services sociaux (CIUSSS) du Nord-de-l'Île de-Montréal, Sacré-Coeur Hospital; Département de médecine de famille et médecine d'urgence (Daoust, Huard, Lessard, Cournoyer), Faculté de médecine, Université de Montréal, Montréal, Que.; Département de médecine de famille et de médecine d'urgence (Émond), Faculté de Médecine, Université Laval; Département d'urgence du CHU-Québec (Émond), Québec, Que.; Department of Emergency Medicine (Iseppon), Hôpital Maisonneuve-Rosemont; Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal (CIUSSS du Nord-de-l'Île-de-Montréal) (Williamson, Lavigne); Faculté de Pharmacie (Williamson), Université de Montréal, Montréal, Que.; Division of Emergency Medicine (Yan), Department of Medicine, Western University, London Health Sciences Centre, London, Ont.; Department of Emergency Medicine (Perry), University of Ottawa, Ottawa, Ont.; Faculties of Dental Medicine and Medicine (Lavigne), Université de Montréal, Montréal, Que.; Department of Emergency Services and Scientist (Lee), Clinical Epidemiology Unit, Sunnybrook Health Sciences; Schwartz/Reisman Emergency Medicine Institute (Lee), Mount Sinai Hospital, Toronto, Ont.; Department of Emergency Medicine (Lang), Cumming School of Medicine, University of Calgary, Calgary, Alta.

Background: Unused opioid prescriptions can be a driver of opioid misuse. Our objective was to determine the optimal quantity of opioids to prescribe to patients with acute pain at emergency department discharge, in order to meet their analgesic needs while limiting the amount of unused opioids.

Methods: In a prospective, multicentre cohort study, we included consecutive patients aged 18 years and older with an acute pain condition present for less than 2 weeks who were discharged from emergency department with an opioid prescription.

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Lie to me to lay with me: Females deceive males via terminal investment.

PLoS One

July 2024

Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Mexico City, Mexico.

Historically, males have frequently been portrayed as the manipulative and deceptive gender, while females are often seen as adopting a coy and passive role. In this context, it is proposed that males use a terminal investment strategy, misleading females about their true poor condition, while females passively opt to mate with these deceptive males. However, we hypothesize that females in suboptimal condition may also engage in a terminal investment strategy by mimicking or enhancing their attractiveness to match that of females in better conditions.

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