Your browser doesn't support javascript.
loading
: 20 | 50 | 100
1 - 20 de 92
1.
Aust J Rural Health ; 32(3): 521-537, 2024 Jun.
Article En | MEDLINE | ID: mdl-38572851

INTRODUCTION: The Kimberley region of Western Australia (WA) is classified by the Modified Monash Model as MM6 & 7 ('Remote/Very Remote'). Many physiotherapists in the Kimberley are considered 'rural generalists' and require a diverse set of clinical and non-clinical skills to work successfully within this setting. OBJECTIVE: To understand physiotherapists' perspectives regarding job satisfaction within the Kimberley region a 'rural and remote' areas of Australia. DESIGN: An exploratory case study approach examined physiotherapists' job satisfaction in the Kimberley. Each participant completed a demographic survey and a one-on-one face-to-face interview lasting for approximately 60 minutes. Transcriptions were analysed and presented thematically. Eleven physiotherapists (nine women, two men, median age = 32 [27-60] years) participated in the study. Participants' median time working in the Kimberley was 2 (1-15) years; eight participants completed a rural placement, and eight participants had a rural background. FINDINGS AND DISCUSSION: Two overarching themes relating to job satisfaction emerged: 'personal factors' and 'workplace factors'. Furthermore, several sub-themes illustrated high levels of job satisfaction. Positive sub-themes relating to personal factors included 'belonging to the community and a rural lifestyle'. 'Diversity in caseloads' and 'workplace culture' were examples of positive workplace sub-themes. Subthemes that challenged the participants personally were 'family arrangements' including schooling, 'spousal employment and family separation' and the 'transiency and social issues' within these remote communities. Workplace challenges comprised of 'barriers to providing best practice' and the 'workforce and clinical experience' found within the Kimberley physiotherapy community and the wider health care workforce. The primary challenge of job satisfaction that encompassed both personal and workplace factors was 'accommodation', with 'cost', 'lack of availability', and 'perceived unsafe location' challenging physiotherapists' decisions to remain in the Kimberley. CONCLUSION: This study describes the many factors impacting job satisfaction among physiotherapists in a rural and remote location in WA Australia. These factors warrant consideration by organisations interested in improving recruitment and retention in this context. Improving recruitment and retention in physiotherapists in rural and remote Australia has the potential to positively influence health service provision, and therefore improve health outcomes for those living in rural and remote communities.


Job Satisfaction , Physical Therapists , Humans , Male , Female , Adult , Western Australia , Physical Therapists/psychology , Middle Aged , Rural Health Services/organization & administration , Surveys and Questionnaires
2.
J Telemed Telecare ; : 1357633X231224491, 2024 Jan 22.
Article En | MEDLINE | ID: mdl-38254285

INTRODUCTION: The goal of this systematic review was to examine the efficacy of behavioral health care treatments for posttraumatic stress disorder (PTSD), depression, and anxiety delivered via telehealth. METHODS: We searched a combination of keywords related to telehealth, relevant mental health disorders, and evidence-based psychotherapies in three databases (PubMed, PsycInfo, and Embase) from database inception to April 2022. We included randomized controlled trials published in English wherein at least one arm received an evidence-based psychotherapy via telehealth. To be included, studies also had to enroll an adult population with symptoms or diagnosis of PTSD, depressive disorder, or anxiety disorder. RESULTS: Moderate quality of evidence was consistent with only small differences, if any, in efficacy between video teleconferencing (VTC) and in-person delivery for patients with PTSD (d = 0.06, 95% CI -0.17, 0.28). However, for those with depression, in-person delivery was associated with better outcomes compared to VTC (d = 0.28, 95% CI 0.03, 0.54; low quality of evidence). We also found that evidence-based treatments delivered over telephone were more efficacious for depression compared to treatment as usual (d = -0.47, 95% CI -0.66, -0.28; very low quality of evidence). Very low quality of evidence supported the use of telehealth versus waitlist for anxiety (d = -0.48, 95% CI -0.89, -0.09). CONCLUSIONS: A synthesis across 29 studies indicates that the efficacy of telehealth for delivery of evidence-based behavioral health interventions varies by target diagnosis and telehealth modality. More research is needed on the efficacy of telehealth treatments for depression and anxiety.

3.
BMC Pregnancy Childbirth ; 23(1): 469, 2023 Jun 23.
Article En | MEDLINE | ID: mdl-37353749

BACKGROUND: Early prediction of Gestational Diabetes Mellitus (GDM) risk is of particular importance as it may enable more efficacious interventions and reduce cumulative injury to mother and fetus. The aim of this study is to develop machine learning (ML) models, for the early prediction of GDM using widely available variables, facilitating early intervention, and making possible to apply the prediction models in places where there is no access to more complex examinations. METHODS: The dataset used in this study includes registries from 1,611 pregnancies. Twelve different ML models and their hyperparameters were optimized to achieve early and high prediction performance of GDM. A data augmentation method was used in training to improve prediction results. Three methods were used to select the most relevant variables for GDM prediction. After training, the models ranked with the highest Area under the Receiver Operating Characteristic Curve (AUCROC), were assessed on the validation set. Models with the best results were assessed in the test set as a measure of generalization performance. RESULTS: Our method allows identifying many possible models for various levels of sensitivity and specificity. Four models achieved a high sensitivity of 0.82, a specificity in the range 0.72-0.74, accuracy between 0.73-0.75, and AUCROC of 0.81. These models required between 7 and 12 input variables. Another possible choice could be a model with sensitivity of 0.89 that requires just 5 variables reaching an accuracy of 0.65, a specificity of 0.62, and AUCROC of 0.82. CONCLUSIONS: The principal findings of our study are: Early prediction of GDM within early stages of pregnancy using regular examinations/exams; the development and optimization of twelve different ML models and their hyperparameters to achieve the highest prediction performance; a novel data augmentation method is proposed to allow reaching excellent GDM prediction results with various models.


Diabetes, Gestational , Pregnancy , Female , Humans , Diabetes, Gestational/diagnosis , Prospective Studies , Sensitivity and Specificity , ROC Curve , Machine Learning
4.
Front Endocrinol (Lausanne) ; 14: 1148934, 2023.
Article En | MEDLINE | ID: mdl-37361533

Obesity is a global epidemic and overwhelming evidence indicates that it is a risk factor for numerous cancers, including hepatocellular carcinoma (HCC), the third leading cause of cancer-related deaths worldwide. Obesity-associated hepatic tumorigenesis develops from nonalcoholic fatty liver disease (NAFLD), progressing to nonalcoholic steatohepatitis (NASH), cirrhosis and ultimately to HCC. The rising incidence of obesity is resulting in an increased prevalence of NAFLD and NASH, and subsequently HCC. Obesity represents an increasingly important underlying etiology of HCC, in particular as the other leading causes of HCC such as hepatitis infection, are declining due to effective treatments and vaccines. In this review, we provide a comprehensive overview of the molecular mechanisms and cellular signaling pathways involved in the pathogenesis of obesity-associated HCC. We summarize the preclinical experimental animal models available to study the features of NAFLD/NASH/HCC, and the non-invasive methods to diagnose NAFLD, NASH and early-stage HCC. Finally, since HCC is an aggressive tumor with a 5-year survival of less than 20%, we will also discuss novel therapeutic targets for obesity-associated HCC and ongoing clinical trials.


Carcinoma, Hepatocellular , Liver Neoplasms , Non-alcoholic Fatty Liver Disease , Animals , Non-alcoholic Fatty Liver Disease/complications , Non-alcoholic Fatty Liver Disease/therapy , Non-alcoholic Fatty Liver Disease/epidemiology , Carcinoma, Hepatocellular/epidemiology , Carcinoma, Hepatocellular/etiology , Carcinoma, Hepatocellular/therapy , Liver Neoplasms/epidemiology , Liver Neoplasms/etiology , Liver Neoplasms/therapy , Obesity/complications
5.
Br Dent J ; 2023 Apr 25.
Article En | MEDLINE | ID: mdl-37186108

Introduction With waiting list time increasing in all specialties in the aftermath of the COVID-19 pandemic, it is vital to make sure that patients are receiving treatment in an appropriate setting. Most oral surgery undertaken in secondary care could be successfully carried out in a primary care setting by specialist oral surgeons or general dental practitioners (GDPs) with a special interest in oral surgery.Aim To investigate reasons for oral surgery referrals to secondary care.Method A pilot study looking at oral surgery referrals to secondary care was completed to identify key themes for referrals. From this, a questionnaire was designed. An electronic copy of the questionnaire was distributed to all GDPs registered with Health Education and Improvement Wales (HEIW) throughout Wales.Results Five main themes for referrals, which corresponded with the pilot study findings were: contract limitations; the perception that recently trained dentists do not have the practical skills to undertake oral surgery; limited communication between the oral and maxillofacial surgery departments and GDPs; limited practice resources; and GDPs being less risk averse in undertaking oral surgery in primary care.Outcome Following the results from this research, an All-Wales oral surgery referral handbook for general dental practitioners was published, hosted by HEIW, describing oral surgery patient care pathways. Formation of the Oral Surgery Managed Clinical Networks in Wales and the All-Wales Oral Surgery Strategic Advisory Forum will help further develop robust, sustainable patient care pathways, in collaboration with the health boards.

6.
Gerodontology ; 40(2): 200-206, 2023 Jun.
Article En | MEDLINE | ID: mdl-35445763

OBJECTIVE: The UK National Institute of Clinical Excellence (NICE) guidelines recommend that care staff who provide daily personal care to residents: "Understand the importance of residents' oral health and the potential effect on their general health, well-being and dignity." The aim of this study was to explore residents' views and perspectives of dental care in care homes in order to understand how to deliver this care. METHOD: Care homes were identified using care home inspection reports for Wales, the UK. Care homes for older people with residents having mental capacity to consent were invited to participate. Data were collected using semi-structured one-to-one interviews with care home residents, care home managers and oral healthcare leads. Interviews were audio recorded, transcribed and analysed using a thematic approach to data. Analysis was assisted by NVivo 10 software. Data collection was completed when no new themes emerged. RESULTS: This analysis presents findings from 26 interviews with residents, across five care homes. Going into care was associated with a loss of identity. Having teeth and looking after teeth (natural teeth or dentures) was part of keeping that identity. All prioritised privacy, pride and independence above effective oral hygiene. Oral hygiene was viewed as a very private event. Carers adapted oral care, to balance time constraints, care, privacy and dignity. Teeth were a part of personal pride to the extent that two residents said they did not want to die without dentures in their mouths. CONCLUSION: Whilst oral care is important to residents, dignity and privacy are often more important; care routines and practices are adapted around this. Carers need to adopt an individualised, pragmatic and sensitive approach to oral care to account for personal dignity when looking after residents to be able to provide appropriate oral care in accordance with guidance. Members of the dental team need to support carers to provide effective oral care, which allows dignified and effective care.


Delivery of Health Care , Oral Hygiene , Respect , Humans , Homes for the Aged , Nursing Homes , Oral Health , Aged, 80 and over , Qualitative Research
7.
J Affect Disord ; 323: 185-192, 2023 02 15.
Article En | MEDLINE | ID: mdl-36455712

BACKGROUND: Adjustment disorder (AD) is a commonly diagnosed psychiatric disorder. However, little is known about its course, predictors of its diagnostic outcomes, or its association with functional impairment. Our primary aim was to examine diagnostic transitions of service members with an incident AD diagnosis (IADx) to one of three states: 1) another psychiatric diagnosis, 2) chronic AD, or 3) no psychiatric diagnosis. Secondary outcomes included predictors of diagnostic course and functional outcomes associated with follow-up diagnoses. METHODS: Health records of a random sample of 10,720 service members with an IADx were analyzed using multinomial logit regression and hazard rate model with competing risks. RESULTS: IADx transitions were 24.3 % to another psychiatric diagnosis, 8.9 % with chronic AD, and 43.7 % without a diagnosis. Nearly a quarter (23.1 %) separated from service. Deployment was the strongest predictor of transitioning to another diagnosis. Those who transitioned to another diagnosis separated at an increased rate and with more adverse outcomes. LIMITATIONS: Diagnostic findings are based on data in the electronic health record, and we could not specifically identify the stressor that precipitated an AD diagnosis. These findings describe the course of AD in military personnel and may not generalize to civilians. CONCLUSIONS: AD, as initially diagnosed, represents a heterogeneous disorder with an enduring impact across the military career for a considerable proportion of service members. As an early indicator of more severe psychiatric outcomes, an IADx may signal an opportunity for early intervention and screening, particularly in service members with a history of deployment.


Adjustment Disorders , Military Personnel , Humans , United States/epidemiology , Adjustment Disorders/diagnosis , Adjustment Disorders/epidemiology , Military Personnel/psychology , Electronic Health Records
8.
J Psychiatr Res ; 156: 498-510, 2022 12.
Article En | MEDLINE | ID: mdl-36347110

Adjustment disorder (AD) is one of the most commonly diagnosed mental health disorders and is generally conceptualized to be mild and short-lived. Despite the frequent use of AD in clinical settings, little is known about the prognosis of this condition. Our goal was to systematically review research on a range of AD outcomes in order to provide a broad characterization of AD prognosis. We conducted searches in MEDLINE, EMBASE, and PsycINFO. We included 31 cohort or randomized controlled trials with a total of 1,385,358 participants. Many patients maintained an AD diagnosis or were diagnosed with another mental health disorder months to years after initial diagnosis. Patients with AD tended to show symptom improvement at higher rates and to utilize less treatment than did patients with other disorders. AD-diagnosed groups experienced subsequent development of numerous physical conditions, such as infection, cancers, Parkinson's disease, and cardiovascular events, at higher rates than did control groups. Results were mixed regarding suicidality and occupational impairment. We rated most studies as having a moderate risk of bias. Based on limited findings, AD appears to progress as a milder disorder than do other disorders, but it not uncommonly transitions to more severe mental health states and may predict the development of future health issues, both mental and physical. Future prospective research that conforms to prognosis study guidelines is needed to better understand the course of this common disorder.


Adjustment Disorders , Humans , Adjustment Disorders/diagnosis , Adjustment Disorders/epidemiology , Suicidal Ideation
9.
Semin Cancer Biol ; 86(Pt 3): 1203-1215, 2022 11.
Article En | MEDLINE | ID: mdl-36244529

With the recent description of the molecular and cellular characteristics that enable acquisition of both core and new hallmarks of cancer, the consequences of transcription factor dysregulation in the hallmarks scheme has become increasingly evident. Dysregulation or mutation of transcription factors has long been recognized in the development of cancer where alterations in these key regulatory molecules can result in aberrant gene expression and consequential blockade of normal cellular differentiation. Here, we provide an up-to-date review of involvement of dysregulated transcription factor networks with the most recently reported cancer hallmarks and enabling characteristic properties. We present some illustrative examples of the impact of dysregulated transcription factors, specifically focusing on the characteristics of phenotypic plasticity, non-mutational epigenetic reprogramming, polymorphic microbiomes, and senescence. We also discuss how new insights into transcription factor dysregulation in cancer is contributing to addressing current therapeutic challenges.


Epigenesis, Genetic , Neoplasms , Humans , Transcription Factors/genetics , Neoplasms/genetics , Neoplasms/drug therapy , Gene Expression Regulation
10.
Br Dent J ; 233(5): 402, 2022 09.
Article En | MEDLINE | ID: mdl-36085470
11.
Br Dent J ; 2022 Jul 19.
Article En | MEDLINE | ID: mdl-35854108

Background Over the past decade, the rise of consumers following a gluten-free diet has increased greatly. The majority of people following a gluten-free diet have not been diagnosed with coeliac disease or gluten or wheat intolerance but believe it to be a health benefit.Aim To assess the differences between gluten-free and gluten-containing products with regards to the implications this might have on oral (and wider) health.Method In total, 50 purposively selected products (25 gluten-free and gluten-containing pairs) available to UK consumers, classified using the UK National Diet and Nutrition Survey food categories, were analysed using content analysis of food packaging. The European Union front-of-pack labelling system revealed the nutritional composition of each product, focusing on carbohydrates, sugars and energy. Cost and use of emotive language to market products was also assessed.Results A nutritional comparison of the 25 product pairings found that, on average, all gluten-free products contained more calories, total carbohydrates and total sugar. The majority of the gluten-free products were classified as 'confectionary' or 'baked goods,' emphasising that products primarily consisted of foods high in sugar. The average sugar per 100 g for each category of food ranged from 2.5-37.0 g/100 g (gluten-free) compared to 2.1-30 g/100 g (gluten-containing). All gluten-free products were considerably more expensive when compared with the conventional version; the average price difference ranged from £0.08 to £4.40.Conclusion This study emphasises the 'health halo' phenomena, where foods for special diets are regarded by consumers as healthy when in fact they are not. This results partly from the products being mainly high-sugar 'treats', which are not a core of the UK Eatwell Guide food-based dietary guidelines. As many people consuming gluten-free products in the UK do not need them from a medical perspective, this could have implications for oral and wider health. It is important that members of the dental team are aware of the possible implications of a gluten-free diet where it is not medically indicated, coupled with reliance on convenience foods.

12.
Rev. Fund. Educ. Méd. (Ed. impr.) ; 25(2): 53-61, abril 2022.
Article Es | IBECS | ID: ibc-210566

Introducción: Determinar la efectividad del portafolio electrónico basado en casos combinado con el aula invertida y el aprendizaje basado en equipos en el rendimiento académico.Sujetos y métodos.Estudio cuasi experimental pretest-postest de un solo grupo realizado durante 2020 en 15 estudiantes de medicina (seis varones y nueve mujeres) de un módulo en línea de oncología quirúrgica en la Universidad Privada Antenor Orrego, Trujillo, Perú.Resultados.La puntuación promedio del examen teórico al final (13,8 ± 13,12) fue significativamente más alta que la obtenida al inicio del módulo (8,64 ± 2,29) (aumento promedio de 5,17 ± 0,83; intervalo de confianza al 95%, 3,92-6,43; p < 0,001). La puntuación promedio en el examen clínico objetivo estructurado virtual al final del módulo fue 12,34 ± 2,21.Conclusiones.El modelo de portafolio electrónico basado en casos combinado con el aula invertida y el aprendizaje basado en equipos es efectivo en el rendimiento académico en la enseñanza de oncología quirúrgica. (AU)


Introduction: To determine the effectiveness of the electronic case-based portfolio combined with the flipped classroomand team-based learning on academic performance.Subjects and methods. Quasi-experimental pretest-post study of a single group carried out during the year 2020, in 15medical students (6 men, 9 women) of an online module of surgical oncology at the Antenor Orrego Private University,Trujillo, Peru.Results. The average score of the theoretical exam at the end (13.8 ± 13.12) was significantly higher than that obtained atthe beginning of the module (8.64 ± 2.29) (average increase of 5.17 ± 0.83; 95% confidence interval, 3.92 - 6.43;p <0.001). The average score in the virtual OSCE at the end of the module was 12.34 ± 2.21.Conclusions. The case-based electronic portfolio model combined with the flipped classroom and team-based learning iseffective in academic performance in the teaching of surgical oncology. (AU)


Humans , Learning , Students, Medical , Surgical Oncology , Education, Medical , General Surgery , Thinking
13.
J Affect Disord ; 304: 43-58, 2022 05 01.
Article En | MEDLINE | ID: mdl-35176345

BACKGROUND: The diagnosis of adjustment disorder is common in clinical practice, yet there is lack of research on the etiology and epidemiology of adjustment disorders. The goal of this systematic review was to evaluate predictors of adjustment disorders in adults. METHODS: We conducted systematic searches in MEDLINE, EMBASE, and PsycINFO. We included 70 studies that examined thirteen theoretically-derived and predefined predictors of adjustment disorders with a total of 3,449,374 participants. RESULTS: We found that female gender, younger age, unemployed status, stress, physical illness and injury, low social support, and a history of mental health disorders predicted adjustment disorders. Most of these predictors differentiated individuals with adjustment disorders from individuals with no mental health disorders. Participants with adjustment disorders were more likely to have experienced accidents than were those with posttraumatic stress disorder but were less likely to have experienced assaults and abuse, neglect, and maltreatment. More research is needed to identify factors that differentiate adjustment disorders from other mental health disorders. LIMITATIONS: Because very few studies adjusted for confounders (e.g., demographic variables, mental health histories, and a variety of stressors), it was not possible to identify independent associations between predictors and adjustment disorders. CONCLUSIONS: We identified a number of factors that predicted adjustment disorders compared to no mental health diagnosis. The majority of studies were rated as moderate or high in risk of bias, suggesting that more rigorous research is needed to confirm the relationships we detected.


Mental Disorders , Stress Disorders, Post-Traumatic , Adjustment Disorders/diagnosis , Adjustment Disorders/epidemiology , Adult , Female , Humans , Mental Disorders/diagnosis , Mental Disorders/epidemiology , Mental Health , Stress Disorders, Post-Traumatic/diagnosis , Stress Disorders, Post-Traumatic/epidemiology
14.
Psychol Serv ; 19(2): 283-293, 2022 May.
Article En | MEDLINE | ID: mdl-33507770

Adjustment disorders are among the most commonly diagnosed mental health disorders in both civilian and military clinical settings. Despite their high prevalence, adjustment disorders have received little research attention. The many gaps in our understanding of this group of disorders hinder the development of adequate, evidence-based treatment protocols. This study utilizes a systematic methodology to identify and prioritize research gaps in adjustment disorders. We used authoritative source reports to identify gaps in research domains from foundational science to services research. Subject-matter experts conducted literature searches to substantiate and refine research gaps, and stakeholders assessed the importance and impact of this work for researchers and policy-makers. We identified 254 possible research-needs statements, which were ultimately reduced to 11 final, prioritized research gaps. Two gaps addressed prevention and screening and three addressed treatment and services research. Six gaps addressed foundational science, epidemiology, and etiology research domains, highlighting the need for basic research. Until some of the basic science questions are resolved (e.g., diagnostic clarity, valid screening, and assessment measures) about adjustment disorders, we may not be able to develop adequate evidence-based interventions for the disorders, and it will be difficult to understand the trajectory of these disorders throughout treatment. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Adjustment Disorders , Adjustment Disorders/diagnosis , Adjustment Disorders/epidemiology , Adjustment Disorders/therapy , Humans
15.
Oral Maxillofac Surg Clin North Am ; 33(4): 491-503, 2021 Nov.
Article En | MEDLINE | ID: mdl-34565512

Medical training in the United States has undergone multiple evolutions and maturations. The Flexner Report and its effects, written in 1910, still has significant impact on modern professional education in the medical and dental arenas. The National Academy of Medicine (Institute of Medicine) in 2003 documented the need for diversity in the health care workforce, and the Association of American Medical Colleges additionally looked at Medical Education and health care through the lens of Academic Medicine. Both these reports reflected that health care institutions, providers, educators, students, and surgical residents are mandated to improve the health of the nation.


Specialties, Surgical , Surgery, Oral , Humans , United States
16.
Suicide Life Threat Behav ; 51(4): 767-774, 2021 08.
Article En | MEDLINE | ID: mdl-34254693

OBJECTIVE: This study identified and prioritized research gaps for suicide prevention in the Department of Defense to inform future research investments. METHODS: The 2019 VA/DoD Clinical Practice Guideline for the Assessment and Management of Patients at Risk for Suicide was the primary source document for research gaps, supplemented by an updated literature search. Institutional stakeholders rated the identified research gaps and ranked the gap categories. We used Q factor analysis to derive a list of the prioritized research gaps and category rankings. RESULTS: Thirty-five research gaps were identified and prioritized. The highest rated research gap topic was lethal means safety interventions and their effectiveness in increasing safety behaviors and/or reducing suicide-related outcomes. Research on the effectiveness of crisis response planning and several other non-pharmacological interventions (e.g., implementation of cognitive-behavioral therapy, technology-based behavioral interventions, and applications of dialectical behavior therapy to non-Borderline patients) were also rated highly by stakeholders. CONCLUSIONS: This work generated a list of priorities for future suicide research as evaluated by Departments of Defense and Veterans Affairs stakeholders. Our findings can help guide the efforts of suicide researchers and inform decisions about future research funding for suicide prevention.


Cognitive Behavioral Therapy , Suicide Prevention , Humans
17.
Lab Invest ; 101(9): 1267-1280, 2021 09.
Article En | MEDLINE | ID: mdl-34117364

Microcalcifications are early markers of breast cancer and can provide valuable prognostic information to support clinical decision-making. Current detection of calcifications in breast tissue is based on X-ray mammography, which involves the use of ionizing radiation with potentially detrimental effects, or MRI scans, which have limited spatial resolution. Additionally, these techniques are not capable of discriminating between microcalcifications from benign and malignant lesions. Several studies show that vibrational spectroscopic techniques are capable of discriminating and classifying breast lesions, with a pathology grade based on the chemical composition of the microcalcifications. However, the occurrence of microcalcifications in the breast and the underlying mineralization process are still not fully understood. Using a previously established model of in vitro mineralization, the MDA-MB-231 human breast cancer cell line was induced using two osteogenic agents, inorganic phosphate (Pi) and ß-glycerophosphate (ßG), and direct monitoring of the mineralization process was conducted using Raman micro-spectroscopy. MDA-MB-231 cells cultured in a medium supplemented with Pi presented more rapid mineralization (by day 3) than cells exposed to ßG (by day 11). A redshift of the phosphate stretching peak for cells supplemented with ßG revealed the presence of different precursor phases (octacalcium phosphate) during apatite crystal formation. These results demonstrate that Raman micro-spectroscopy is a powerful tool for nondestructive analysis of mineral species and can provide valuable information for evaluating mineralization dynamics and any associated breast cancer progression, if utilized in pathological samples.


Breast Neoplasms , Calcinosis , Spectrum Analysis, Raman/methods , Breast Neoplasms/diagnostic imaging , Breast Neoplasms/metabolism , Breast Neoplasms/pathology , Calcinosis/diagnostic imaging , Calcinosis/metabolism , Calcinosis/pathology , Calcium Phosphates/chemistry , Calcium Phosphates/metabolism , Cell Line, Tumor , Female , Humans
18.
Int J Mol Sci ; 22(8)2021 Apr 15.
Article En | MEDLINE | ID: mdl-33920983

Ovarian cancer is an aggressive gynaecological cancer with extremely poor prognosis, due to late diagnosis as well as the development of chemoresistance after first-line therapy. Research advances have found stem-like cells present in ovarian tumours, which exist in a dynamic niche and persist through therapy. The stem cell niche interacts extensively with the immune and non-immune components of the tumour microenvironment. Significant pathways associated with the cancer stem cell niche have been identified which interfere with the immune component of the tumour microenvironment, leading to immune surveillance evasion, dysfunction and suppression. This review aims to summarise current evidence-based knowledge on the cancer stem cell niche within the ovarian cancer tumour microenvironment and its effect on immune surveillance. Furthermore, the review seeks to understand the clinical consequences of this dynamic interaction by highlighting current therapies which target these processes.


Immunologic Surveillance , Neoplastic Stem Cells/pathology , Ovarian Neoplasms/immunology , Ovarian Neoplasms/pathology , Stem Cell Niche/immunology , Animals , Female , Humans , Inflammation/pathology , Ovarian Neoplasms/therapy , Signal Transduction
19.
Am J Orthod Dentofacial Orthop ; 159(1): 41-52, 2021 Jan.
Article En | MEDLINE | ID: mdl-33221095

INTRODUCTION: Effective communication of risk is a requisite for valid consent, shared decision-making, and the provision of person-centered care. No agreed standard for the content of discussions with patients about the risks of orthodontic treatment exists. This study aimed to produce a professional consensus recommendation about the risks that should be discussed with patients as part of consent for orthodontic treatment. METHODS: A serial cross-sectional survey design using a modified electronic Delphi technique was used. Two survey rounds were conducted nationally in the United Kingdom using a custom-made online system. The risks used as the prespecified items scored in the Delphi exercise were identified through a structured literature review. Orthodontists scored treatment risks on a 1-9 scale (1 = not important, 9 = critical to discuss with patients). The consensus that a risk should be discussed as part of consent was predefined as ≥70% orthodontists scoring risk as 7-9 and <15% scoring 1-3. RESULTS: The electronic Delphi was completed by 237 orthodontists who reached a professional consensus that 10 risks should be discussed as part of consent for orthodontic treatment; demineralization, relapse, resorption, pain, gingivitis, ulceration, appliances breaking, failed tooth movements, treatment duration, and consequences of no treatment. CONCLUSIONS: A professional orthodontic consensus has been reached that 10 key risks should be discussed with patients as part of consent for orthodontic treatment. The information in this evidence base should be tailored to patients' individual needs and delivered as part of a continuing risk communication process.


Orthodontists , Consensus , Cross-Sectional Studies , Humans , Surveys and Questionnaires , United Kingdom
20.
Semin Cancer Biol ; 72: 19-26, 2021 07.
Article En | MEDLINE | ID: mdl-31866475

Comprised of a complex network of numerous intertwining pathways, the Ca2+ signalling nexus is an essential mediator of many normal cellular activities. Like many other such functions, the normal physiological activity of Ca2+ signalling is frequently co-opted and reshaped in cases of breast cancer, creating a potent oncogenic drive within the affected cell population. Such modifications can occur within pathways mediating either Ca2+ import (e.g. TRP channels, ORAI-STIM1) or Ca2+ export (e.g. PMCA), indicating that both increases and decreases within cellular Ca2+ levels have the potential to increase the malignant potential of a cell. Increased understanding of these pathways may offer clinical benefit in terms of both prognosis and treatment; patient survival has been linked to expression levels of certain Ca2+ transport proteins, whilst selective targeting of these factors with novel anti-cancer agents has demonstrated a variety of anti-tumour effects in in vitro studies. In addition, the activity of several Ca2+ signalling pathways has been shown to influence chemotherapy response, suggesting that a synergistic approach coupling traditional chemotherapy with Ca2+ targeting agents may also improve patient outcome. As such, targeted modulation of these pathways represents a novel approach in precision medicine and breast cancer therapy.


Antineoplastic Agents/therapeutic use , Breast Neoplasms/drug therapy , Calcium Signaling/drug effects , Calcium/metabolism , Animals , Breast Neoplasms/metabolism , Breast Neoplasms/pathology , Female , Humans
...