Publications by authors named "Sia D"

Background: Healthcare-associated infections (HCAI) are common in long-term care facilities (LTCF) and cause significant burden. Infection prevention and control (IPC) measures include the clinical best practices (CBP) of hand hygiene, hygiene and sanitation, screening, and basic and additional precautions. Few studies demonstrate their cost-effectiveness in LTCF, and those that do, largely focus on one CBP.

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  • Research shows that mammary gland aging can happen in cycles influenced by maternal ancestry, rather than just gradually over time.
  • In these cycles, mouse mammary glands at 11 and 19 months show similarities related to cancer, while younger glands (3 and 14 months) do not, potentially explaining why breast cancer peaks around these ages.
  • The study suggests that if harmful mutations in cells are avoided during the more vulnerable aging phases, rejuvenation might help delay cancer and could lead to longer lifespans in mice.
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  • TGF-β is implicated in promoting cancer development, and the study investigates a specific protein's role in hepatocellular carcinoma (HCC), finding its overexpression linked to aggressive cancer features.
  • The research involved analyzing tumor data from a large number of HCC patients and using mouse models to explore molecular effects, revealing a connection between the protein’s levels and immune system suppression.
  • The findings suggest that overexpressing this protein contributes to tumor growth and poor patient outcomes, highlighting its potential as a target for cancer treatment.
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Cholangiocarcinomas are a highly heterogeneous group of malignancies that, despite recent progress in the understanding of their molecular pathogenesis and clinical management, continue to pose a major challenge to public health. The traditional view posits that cholangiocarcinomas derive from the neoplastic transformation of cholangiocytes lining the biliary tree. However, increasing genetic and experimental evidence has recently pointed to a more complex, and nuanced, scenario for the potential cell of origin of cholangiocarcinomas.

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Diet, physical activity, and body shape play an essential role in the development of type 2 diabetes (T2D) and are the social dimensions most targeted by health professionals in their practices or intervention aimed at preventing and controlling T2D. However, several interventions focus more on individual factors and less on social determinants likely to influence the adoption of dietary, body, and physical activity standards favorable to the prevention and control of T2D. This study aims to explore the social determinants influencing the rejection or adoption of dietary, bodily, and physical activity norms favorable to the prevention and control of T2D among migrants from sub-Saharan Africa.

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This study aims to measure the level of entry into motherhood among internally displaced adolescent girls in Kaya and Kongoussi communes, Burkina Faso, and to analyze the factors associated with it. Data were collected from 404 adolescent girls aged 12-19 years in a cross-sectional survey conducted between July and August 2021. The proportion of internally displaced adolescent girls who had started childbearing was 26.

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Background: To assess topical dorzolamide as medical therapy for idiopathic full-thickness macular holes (FTMHs).

Methods: Randomised, double-blinded, placebo-controlled, single-centre clinical trial involving 32 patients with idiopathic small FTMHs (<400 ). Participants in both arms used topical dorzolamide 2% or saline thrice daily for 8 weeks with monthly OCT.

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Background: The COVID-19 pandemic wreaked havoc on long-term care facilities (LTCFs). Some LTCFs performed better than others at slowing COVID-19 transmission. Emerging literature has mostly described infection prevention and control strategies implemented by LTCFs during the pandemic.

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Introduction: The systems of dietary and body that favor the prevention and control of type 2 diabetes (T2D) go against what is vital for most of the migrant population, exposing them to conflicts of norms that are difficult to reconcile. The purpose of this scoping review is to identify factors that may influence the acceptance or rejection of dietary and body norm systems favorable to the prevention and control of T2D by sub-Saharan Africa migrants living with T2D.

Methods: An electronic search of studies from 2011 to 2022, published in English, Italian, French, or Portuguese was conducted in seven databases and in gray literature.

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Objective: To describe the development of a web-based data collection tool to track the management and outcomes of uveal melanoma patients.

Design: Description of a clinical registry.

Participants: Patients with uveal melanoma.

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There are many healthcare financing programs (HFPs) in Cameroon; however, there is a lack of information on these programs' economic effectiveness and efficiency. Involvement of local stakeholders in the economic evaluations (EEs) of HFPs is critical for ensuring contextual factors are considered prior to program implementation. We conducted a cross-sectional study to assess the need for EEs of Cameroonian HFPs.

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Introduction: Due to the Democratic Republic of the Congo’s (DRC) precarious health system that provides only limited access to health care, the European Union, via Memisa Belgium, implemented a program to strengthen provision of and access to health care (known as PRO DS) in the provinces of Kongo Central and Ituri. This program took a holistic approach, seeking to improve equitable access and combat malnutrition.

Methods: To measure the program’s social return on investment and to estimate the cost per capita and effectiveness per euro invested (efficiency), a 61-month (1 July 2017 to 31 July 2022) cost-effectiveness evaluation with a societal perspective was carried out.

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Background And Aims: Sustained inflammation and hepatocyte injury in chronic liver disease activate HSCs to transdifferentiate into fibrogenic, contractile myofibroblasts. We investigated the role of protocadherin 7 (PCDH7), a cadherin family member not previously characterized in the liver, whose expression is restricted to HSCs.

Approach And Results: We created a PCDH7 fl/fl mouse line, which was crossed to lecithin retinol acyltransferase-Cre mice to generate HSC-specific PCDH7 knockout animals.

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  • This text discusses two rare cases of calciphylaxis that showed eye-related issues without typical skin symptoms, aiming to increase awareness of the condition.
  • The cases include a 76-year-old woman with kidney failure and anterior ischemic optic neuropathy (AION), and a 44-year-old man on dialysis with AION and central retinal artery occlusion (CRAO).
  • It emphasizes the importance of recognizing calciphylaxis in kidney patients with eye problems, and suggests a temporal artery biopsy for accurate diagnosis to prevent unnecessary treatments like steroids.
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Background: Endophthalmitis following intravitreal injection is a potentially devastating complication of anti-VEGF injections. Post-injection endophthalmitis due to Enterococcus faecalis is rare, and no previous case of Morganella morganii endophthalmitis after intravitreal injection has been reported.

Case Presentation: We present the first reported case of Morganella morganii and Enterococcus faecalis endophthalmitis after intravitreal injection in an immunocompetent patient in the absence of recent ocular surgery.

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Access to universal health coverage is a fundamental right that ensures that even the most disadvantaged receive health services without financial hardship. The Democratic Republic of Congo is among the poorest countries in the world, yet healthcare is primarily made by direct payment which renders care inaccessible for most Congolese. Between 2017 and 2021 a purchasing of health services initiative (Le Programme de Renforcement de l'Offre et Développement de l'accès aux Soins de Santé or PRO DS), was implemented in Kongo Central and Ituri with the assistance of the non-governmental organization Memisa Belgium.

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Objective: Cytotoxic agents are the cornerstone of treatment for patients with advanced intrahepatic cholangiocarcinoma (iCCA), despite heterogeneous benefit. We hypothesised that the pretreatment molecular profiles of diagnostic biopsies can predict patient benefit from chemotherapy and define molecular bases of innate chemoresistance.

Design: We identified a cohort of advanced iCCA patients with comparable baseline characteristics who diverged as extreme outliers on chemotherapy (survival <6 m in rapid progressors, RP; survival >23 m in long survivors, LS).

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  • The COVID-19 pandemic significantly impacted postsecondary institutions, especially affecting international students (ISs) who faced challenges due to in-person learning restrictions, quarantine measures, and travel bans.
  • This project aims to develop a user-friendly and cost-effective web-based application, Psy-Web, to provide psychological support and interactive interventions for ISs, particularly Francophone students who may encounter language and cultural barriers in English-speaking environments.
  • The study will utilize a mixed-methods approach, starting with the construction of the Psy-Web platform and followed by analyzing its implementation and the outcomes achieved through its use.
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Introduction: Migrant, internally displaced, asylum seeking and refugee women experience ongoing risks of having their reproductive healthcare rights violated. This ever-increasing population also has limited access to sexual and reproductive health services. We conducted a scoping review to identify the barriers and facilitating factors when accessing sexual and reproductive health services for this specific population.

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Background: The COVID-19 pandemic has disproportionately and severely affected older adults, namely those living in long-term care facilities (LTCFs). Aside from experiencing high mortality rates, survivors were critically concerned by social isolation and loneliness (SIL). To address this serious public health concern and stay connected with LTCF residents, information and communication technology (ICT) platforms (eg, video calls) were used as an alternative to maintaining social interactions amid the visiting restriction policy.

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Liver fibrosis is a substantial risk factor for the development and progression of liver cancer, which includes hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (iCCA). Studies utilizing cell fate mapping and single-cell transcriptomics techniques have identified quiescent perisinusoidal hepatic stellate cells (HSCs) as the primary source of activated collagen-producing HSCs and liver cancer-associated fibroblasts (CAFs) in HCC and liver metastasis, complemented in iCCA by contributions from portal fibroblasts. At the same time, integrative computational analysis of single-cell, single-nucleus and spatial RNA sequencing data have revealed marked heterogeneity among HSCs and CAFs, with distinct subpopulations displaying unique gene expression signatures and functions.

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Preclinical data suggest that mutations result in defective homologous recombination repair (HRR). We hypothesized that patients with mt intrahepatic cholangiocarcinoma (IHCC) would benefit more from 1 L platinum chemotherapy than patients with wildtype (WT) tumors. We performed a multicenter retrospective study of 81 patients with unresectable IHCC treated with 1 L platinum with a primary endpoint of clinical benefit rate (CBR).

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Background: The accurate encoding of operation notes is essential for activity-based funding and workforce planning. The aim of this project was to evaluate the procedural coding accuracy of vitrectomy and to develop machine learning, natural language processing (NLP) models that may assist with this task.

Methods: This retrospective cohort study involved vitrectomy operation notes between a 21-month period at the Royal Adelaide Hospital.

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Management of hepatoblastoma (HB), the most frequent pediatric liver cancer, is based on surgical resection and perioperative chemotherapy regimens. In this study, we aimed to identify actionable targets in HB and assess the efficacy of molecular therapies in preclinical models of HB. Paired tumor and adjacent tissues from 31 HBs and a validation set of 50 HBs were analyzed using RNA-seq, SNP, and methylation arrays.

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