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1.
Menopause ; 31(6): 537-545, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38787353

ABSTRACT

OBJECTIVE: Menopause is often accompanied by lowered Lactobacillus spp. relative abundance and increased abundance of diverse anaerobic/aerobic bacteria in the vaginal microbiota due in part to declines in estrogen. These microbiota are associated with urogenital symptoms and infections. In premenopause, vaginal microbiota can fluctuate rapidly, particularly with menstrual cycles and sexual activity; however, the longitudinal dynamics of vaginal microbiota are understudied in peri- and postmenopause. We described vaginal community stability across reproductive stages. METHODS: Pre- (n = 83), peri- (n = 8), and postmenopausal (n = 11) participants provided twice-weekly mid-vaginal samples (total, 1,556; average, 15 per participant) over 8 weeks in an observational study. Composition of the vaginal microbiota was characterized by 16S rRNA gene amplicon sequencing, and a community state type (CST) was assigned to each sample. Clustering of longitudinal CST profiles, CST transition rates, duration of low-Lactobacillus/high bacterial diversity CSTs, and other metrics of bacterial community dynamics were assessed across reproductive stages. RESULTS: The proportion of participants with longitudinal CST profiles characterized by low-Lactobacillus CSTs was similar among pre- (38.6%), peri- (37.5%), and postmenopausal (36.4%) participants (P = 0.69). CST transition rates between consecutive samples were 21.1%, 16.7%, and 14.6% for pre-, peri-, and postmenopausal participants, respectively (P = 0.49). Low-Lactobacillus CST tended to persist for at least 4 weeks, irrespective of reproductive stage. CONCLUSIONS: Findings from this small yet frequently sampled cohort revealed vaginal bacterial fluctuations over 8 weeks that were similar across reproductive stages. Larger and longer-term studies based on these preliminary data could provide insights into the influence of microbiota dynamics on urogenital outcomes during menopause.


Subject(s)
Microbiota , Postmenopause , RNA, Ribosomal, 16S , Vagina , Humans , Female , Vagina/microbiology , Middle Aged , Longitudinal Studies , RNA, Ribosomal, 16S/genetics , Adult , Premenopause , Lactobacillus/isolation & purification , Perimenopause , Secondary Data Analysis
2.
Cancer Med ; 13(7): e7157, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38572938

ABSTRACT

PURPOSE: Caring for someone with cancer has a significant impact on usual routines, including caregivers' ability to maintain their own health and wellbeing. Caregivers living in rural areas face additional challenges in supporting someone with cancer, and little is known about the impact of caregiving on the health behaviors of rural caregivers. Therefore, this study explored how caring for someone with cancer affected rural caregivers' health behaviors. METHODS: Through semi-structured interviews, 20 rural caregivers described changes in their health behaviors while caring for someone with cancer and the factors underlying these changes. Specific prompts were provided for diet, physical activity, alcohol, smoking, sleep, social connection and leisure, and accessing health care when needed. Interviews were audio-recorded and transcribed verbatim. Content analysis was used to identify changes in health behaviors and the factors underlying these changes. The factors identified were mapped to the socioecological framework, identifying areas for intervention across multiple levels (individual, interpersonal, organizational, community, and policy). RESULTS: Rural caregivers reported both positive and negative changes to their diet, physical activity, alcohol, and smoking. Sleep, social connection and leisure, and accessing health care were negatively impacted since becoming a caregiver. CONCLUSIONS: Designing interventions to address rural caregivers' coping strategies, reduce carer burden and fatigue, improve access to cooking and exercise facilities and social support while away from home, reduce the need to travel for treatment, and increase the financial support available could yield widespread benefits for supporting the health and wellbeing of rural caregivers.


Subject(s)
Caregivers , Neoplasms , Humans , Social Support , Rural Health , Health Behavior , Neoplasms/epidemiology , Neoplasms/therapy
3.
Psychooncology ; 33(3): e6321, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38488825

ABSTRACT

OBJECTIVE: Quality survivorship information is an essential component of cancer care. However, survivors often report not receiving this information and healthcare professionals report limited practical guidance on how to effectively deliver survivorship information. Therefore, this study used realist review methods to identify mechanisms reported within the published literature for communicating survivorship information and to understand the contextual factors that make these mechanisms effective. METHODS: Full-text papers published in CINAHL, PubMed, Web of Science, Scopus, Cochrane Library, and Academic Search Ultimate were included. Studies included in this review were conducted in Australia between January 2006 and December 2023, and reported on how information regarding survivorship care was communicated to adult cancer survivors living in the community. This review utilized realist methodologies: text extracts were converted to if-then statements used to generate context-mechanism-outcome theories. RESULTS: Fifty-one studies were included and six theories for mechanisms that underpin the effective delivery of survivorship information were formed. These include: (1) tailoring information based on the survivors' background, (2) enhancing communication among providers, (3) employing dedicated survivorship staff, (4) providing survivorship training, (5) reducing the burden on survivors to navigate their care, and (6) using multiple modalities to provide information. CONCLUSIONS: Findings can inform practical guidance for how survivorship care information is best delivered in practice. Clinicians can apply this guidance to improve their individual interactions with cancer survivors, as can policymakers to develop healthcare systems and procedures that support effective communication of cancer survivorship information.


Subject(s)
Cancer Survivors , Neoplasms , Adult , Humans , Survivorship , Survivors , Health Personnel , Australia , Neoplasms/therapy
4.
J Acad Nutr Diet ; 2024 Feb 21.
Article in English | MEDLINE | ID: mdl-38395356

ABSTRACT

BACKGROUND: Group nutrition education and cooking programs for people affected by cancer have the potential to address commonly reported unmet needs for dietary information, as well as provide opportunities for practical and social support. OBJECTIVE: To report the nutrition-related content, delivery methods, and outcomes measured in group nutrition education and cooking programs for people affected by cancer in the published literature, and describe how these programs were developed, implemented, and evaluated. METHODS: A scoping review of academic literature is reported using the preferred reporting items for systematic reviews and meta-analyses extension for scoping reviews guidelines. Key terms such as cancer, nutrition education, and cooking were searched across 4 databases (PubMed, Embase, Cumulative Index of Nursing and Allied Health Literature, and Web of Science) on June 1, 2023, for records published over the past 10 years. Records were independently screened by 2 reviewers. Data extracted included program participants, components, nutrition-related content, delivery methods, outcomes measured, and information about how the program was developed, implemented, and evaluated. RESULTS: Of 2,254 records identified, 41 articles met eligibility criteria, reporting on 37 programs. Most programs were designed for adult cancer survivors (89%) and conducted after primary treatment (81%). Four programs invited caregivers to attend. Almost all programs (97%) included a nutrition education component, and more than half (59%) included cooking activities, with a predominant focus on recommendations and practical skills for healthy eating. Most programs were delivered byregistered dietitians and/or nutritionists (54%) and included group discussions (57%) and active involvement in cooking activities (57%) in program delivery. The participant outcomes that were measured covered dietary, psychosocial, clinical, and anthropometric domains. Many programs were developed with cancer survivors, dietitians or nutritionists, and researchers. No studies reported on sustainability of program implementation or overall costs. Programs were evaluated using data from surveys, focus groups, interviews, and field notes, with articles typically reporting on participation rates, reasons for nonparticipation, program acceptability, aspects of the nutrition-related programs valued by participants, and suggestions for improvement. CONCLUSIONS: Future research should prioritize assessing the effectiveness of these programs for participants. Future development, implementation, and evaluation of these programs should include family members and friends and assess the sustainability of program delivery, including cost-effectiveness.

5.
PLoS One ; 19(2): e0296346, 2024.
Article in English | MEDLINE | ID: mdl-38315688

ABSTRACT

Bacterial vaginosis, characterized in part by low levels of vaginal Lactobacillus species, has been associated with pro-inflammatory cytokines which could fuel uterine fibroid development. However, prior work on the associations between uterine fibroids and vaginal bacteria is sparse. Most studies have focused on assessment of individual taxa in a single sample. To address research gaps, we sought to compare short, longitudinal profiles of the vaginal microbiota in uterine fibroid cases versus controls with assessment for hormonal contraceptives (HCs), a possible confounder associated with both protection from fibroid development and increases in Lactobacillus-dominated vaginal microbiota. This is a secondary analysis of 83 reproductive-age cisgender women who presented for transvaginal ultrasound (TVUS) and self-collected mid-vaginal swabs daily for 1-2 weeks before TVUS (Range: 5-16 days, n = 697 samples). Sonography reports detailed uterine fibroid characteristics (N = 21 cases). Vaginal microbiota was assessed by 16S rRNA gene amplicon sequencing and longitudinal microbiota profiles were categorized by hierarchical clustering. We compared longitudinal profiles of the vaginal microbiota among fibroid cases and controls with exact logistic regression. Common indications for TVUS included pelvic mass (34%) and pelvic pain (39%). Fibroid cases tended to be older and report Black race. Cases less often reported HCs versus controls (32% vs. 58%). A larger proportion of cases had low-Lactobacillus longitudinal profiles (48%) than controls (34%). In unadjusted analysis, L. iners-dominated and low-Lactobacillus profiles had higher odds of fibroid case status compared to other Lactobacillus-dominated profiles, however these results were not statistically significant. No association between vaginal microbiota and fibroids was observed after adjusting for race, HC and menstruation. Results were consistent when number of fibroids were considered. There was not a statistically significant association between longitudinal profiles of vaginal microbiota and uterine fibroids after adjustment for common confounders; however, the study was limited by small sample size.


Subject(s)
Leiomyoma , Microbiota , Vaginosis, Bacterial , Female , Humans , Infant, Newborn , RNA, Ribosomal, 16S/genetics , Leiomyoma/diagnostic imaging , Vagina/diagnostic imaging , Vagina/microbiology , Lactobacillus/genetics
6.
Nutr Diet ; 81(2): 215-227, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38192229

ABSTRACT

AIMS: To investigate anxiety and depression after primary treatment for ovarian cancer in relation to diet quality and intake. METHODS: In a cohort of women with ovarian cancer in Australia, levels of anxiety and depression (normal, subclinical, and clinical) were assessed using the Hospital Anxiety and Depression Scale at 9 months post-diagnosis. Dietary intake was assessed using a validated food frequency questionnaire at 12 months post-diagnosis and scored using the Healthy Eating Index 2015. Multinomial logistic regression and bivariate analyses were used to investigate relationships between levels of anxiety and depression and subsequent diet quality and intake of food groups. RESULTS: Of 595 women, anxiety and depression were identified among 128 (21%) and 80 (13%) women, respectively. Compared to women without anxiety or depression, women with subclinical anxiety (odds ratio = 0.49, 95% confidence interval: 0.25-0.98) and those with clinical depression (odds ratio = 0.25, 95% confidence interval: 0.07-0.93) were less likely to score in the highest quartile for diet quality. Separate adjustment for age, education, employment, disease stage, body mass index, and smoking status did not attenuate these associations. In bivariate analyses, women with subclinical anxiety were more likely to report higher intakes of sweet foods. Those with clinical depression were more likely to report lower intakes of orange vegetables and wholegrains, higher intakes of sweetened beverages, and not consume alcohol or soya foods. CONCLUSIONS: Anxiety or depression after primary treatment for ovarian cancer may be associated with poorer diet quality. Efforts to improve diet quality post-treatment should consider support for mental health.


Subject(s)
Anxiety , Depression , Diet , Mental Health , Ovarian Neoplasms , Humans , Female , Middle Aged , Australia , Depression/epidemiology , Diet, Healthy , Aged , Adult , Cohort Studies , Surveys and Questionnaires
7.
Molecules ; 28(13)2023 Jun 21.
Article in English | MEDLINE | ID: mdl-37446562

ABSTRACT

One of the key questions in forensic cases relates to some form of age inference, whether this is how old a crime scene is, when in time a particular crime was committed, or how old the victim was at the time of the crime. These age-related estimations are currently achieved through morphological methods with varying degrees of accuracy. As a result, biomolecular approaches are considered of great interest, with the relative abundances of several protein markers already recognized for their potential forensic significance; however, one of the greatest advantages of proteomic investigations over genomics ones is the wide range of post-translational modifications (PTMs) that make for a complex but highly dynamic resource of information. Here, we explore the abundance of several PTMs including the glycosylation, deamidation, and oxidation of several key proteins (collagen, fetuin A, biglycan, serum albumin, fibronectin and osteopontin) as being of potential value to the development of an age estimation tool worthy of further evaluation in forensic contexts. We find that glycosylations lowered into adulthood but deamidation and oxidation increased in the same age range.


Subject(s)
Protein Processing, Post-Translational , Proteomics , Male , Female , Humans , Proteomics/methods , Glycosylation , Serum Albumin , Forensic Medicine , Biomarkers
8.
Psychooncology ; 32(7): 1001-1012, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37248643

ABSTRACT

OBJECTIVE: To conduct a systematic literature review to critically assess the met and unmet post-treatment information needs of cancer survivors living in rural communities in Australia, to inform the improvement of survivors' transition from treatment in major cities to community care. METHODS: Cumulative index of nursing and allied health literature, PubMed, Web of Science, Scopus, Cochrane CENTRAL and Academic Search Ultimate databases and websites of 118 cancer organisations were searched for relevant Australian studies published since 2006. Key search terms included 'rural', 'remote', 'regional', 'cancer', 'survivor*', 'living with', and 'post-treatment'. Data reflecting study source, aims, methodology, and reported information needs were extracted and summarised. Study quality was assessed using Joanna Briggs Institute tools. RESULTS: Fifty-two articles met eligibility criteria. Only six of these specified a primary aim of understanding information needs for rural cancer survivors. Information on prognosis and recovery; managing treatment side effects; healthy lifestyle choices; referrals to support services, and face-to-face and written delivery of information at multiple time points were reported as needed and often lacking for rural cancer survivors. CONCLUSIONS: Co-ordinated, multi-step provision of information to support health and recovery after cancer treatment and beyond is likely to be particularly important for rural cancer survivors given their broad range of needs and reduced access to health care services. Findings provide useful recommendations to facilitate patients' transition home to rural communities after cancer treatment in major cities, however, an increased understanding of the information needs of rural survivors is required to inform the development of guidelines that can be used in clinical practice.


Subject(s)
Cancer Survivors , Neoplasms , Humans , Rural Population , Australia , Neoplasms/therapy
9.
Am J Clin Nutr ; 118(1): 50-58, 2023 07.
Article in English | MEDLINE | ID: mdl-37146759

ABSTRACT

BACKGROUND: Malnutrition is common during treatment of ovarian cancer, and 1 in 3 patients report multiple symptoms affecting food intake after primary treatment. Little is known about diet posttreatment in relation to ovarian cancer survival; however, general recommendations for cancer survivors are to maintain a higher level of protein intake to support recovery and minimize nutritional deficits. OBJECTIVES: To investigate whether intake of protein and protein food sources following primary treatment of ovarian cancer is associated with recurrence and survival. METHODS: Intake levels of protein and protein food groups were calculated from dietary data collected ∼12 mo postdiagnosis using a validated FFQ in an Australian cohort of women with invasive epithelial ovarian cancer. Disease recurrence and survival status were abstracted from medical records (median 4.9 y follow-up). Cox proportional hazards regression was used to calculate adjusted HRs and 95% CIs for protein intake and progression-free and overall survival. RESULTS: Among 591 women who were progression-free at 12 mo follow-up, 329 (56%) subsequently experienced cancer recurrence and 231 (39%) died. A higher level of protein intake was associated with better progression-free survival (>1-1.5 compared with ≤1 g/kg body weight, HRadjusted: 0.69, 95% CI: 0.48, 1.00; >1.5 compared with ≤1 g/kg, HRadjusted: 0.61, 95% CI: 0.41, 0.90; >20% compared with ≤20% total EI from protein, HRadjusted: 0.77, 95% CI: 0.61, 0.96). There was no evidence for better progression-free survival with any particular protein food sources. There was a suggestion of better overall survival among those with higher total intakes of animal-based protein foods, particularly dairy products (HR: 0.71; 95% CI: 0.51, 0.99 for highest compared with lowest tertiles of total dairy intake). CONCLUSIONS: After primary treatment of ovarian cancer, a higher level of protein intake may benefit progression-free survival. Ovarian cancer survivors should avoid dietary practices that limit intake of protein-rich foods.


Subject(s)
Neoplasm Recurrence, Local , Ovarian Neoplasms , Humans , Female , Surveys and Questionnaires , Australia , Diet , Ovarian Neoplasms/diagnosis , Dairy Products
10.
J Cancer Surviv ; 2023 Mar 10.
Article in English | MEDLINE | ID: mdl-36897546

ABSTRACT

PURPOSE: To generate direct observational evidence for understanding how diet, nutrition, and weight-related topics are discussed during follow-up after treatment for gynecological cancer, as recommended by survivorship care guidelines. METHODS: Conversation analysis of 30 audio-recorded outpatient consultations, involving 4 gyne-oncologists, 30 women who had completed treatment for ovarian or endometrial cancer, and 11 family members/friends. RESULTS: From 21 instances in 18 consultations, diet, nutrition, or weight-related talk continued beyond initiation if the issue raised was ostensibly relevant to the clinical activity being undertaken at the time. These instances led to care-related outcomes (i.e., general dietary recommendations, referral to support, behavior change counseling) only when the patient identified needing further support. Diet, nutrition, or weight-related talk was not continued by the clinician if it was not apparently related to the current clinical activity. CONCLUSIONS: The continuation of diet, nutrition, or weight-related talk during outpatient consultations after treatment for gynecological cancer, and the subsequent delivery of care-related outcomes, depends on its immediate clinical relevance and the patient indicating needing further support. The contingent nature of these discussions means there can be missed opportunities for the provision of dietary information and support post-treatment. IMPLICATIONS FOR CANCER SURVIVORS: If seeking information or support for diet, nutrition, or weight-related issues post-treatment, cancer survivors may need to be explicit regarding their need for this during outpatient follow-up. Additional avenues for dietary needs assessment and referral should be considered to optimize the consistent delivery of diet, nutrition, and weight-related information and support after treatment for gynecological cancer.

11.
Cells ; 12(3)2023 01 25.
Article in English | MEDLINE | ID: mdl-36766750

ABSTRACT

Obesity is an ever-increasing phenomenon, with 42% of Americans being considered obese (BMI ≥ 30) and 9.2% being considered morbidly obese (BMI ≥ 40) as of 2016. With obesity being characterized by an abundance of adipose tissue expansion, abnormal tissue remodeling is a typical consequence. Importantly, this pathological tissue expansion is associated with many alterations in the cellular populations and phenotypes within the tissue, lending to cellular, paracrine, mechanical, and metabolic alterations that have local and systemic effects, including diabetes and cardiovascular disease. In particular, vascular dynamics shift during the progression of obesity, providing signaling cues that drive metabolic dysfunction. In this review, paracrine-, autocrine-, and matrix-dependent signaling between adipocytes and endothelial cells is discussed in the context of the development and progression of obesity and its consequential diseases, including adipose fibrosis, diabetes, and cardiovascular disease.


Subject(s)
Cardiovascular Diseases , Obesity, Morbid , Humans , Obesity, Morbid/metabolism , Endothelial Cells/metabolism , Cardiovascular Diseases/metabolism , Adipose Tissue/metabolism , Adipocytes/metabolism
12.
Sex Transm Dis ; 50(6): e2-e4, 2023 06 01.
Article in English | MEDLINE | ID: mdl-36749852

ABSTRACT

ABSTRACT: This secondary analysis (N = 43) compared computer-assisted self-interview (CASI) to clinician interview for self-report of 8 vulvovaginal symptoms. Concordance was moderate between interview modes (range, 70-86%) with itching and odor having highest agreement. Although prior reports suggest more responses on CASI, we found CASI did not significantly increase self-report of symptoms over clinician interview.


Subject(s)
Computers , Humans , Self Report
13.
Aust N Z J Public Health ; 46(6): 850-857, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36121279

ABSTRACT

OBJECTIVE: Rural cancer caregivers report poor wellbeing and high unmet needs for support. This study investigates sources of support sought by cancer caregivers living in rural Australia, and factors associated with support-seeking. METHODS: Informal caregivers of people with cancer completed a questionnaire assessing sociodemographic characteristics, caregiver factors and support-seeking. Descriptive statistics, bivariate analyses and logistic regression were used to identify common sources of support and factors associated with support-seeking. Alluvial and radar plots were used to identify and describe support-seeking profiles. FINDINGS: Of 244 rural caregivers, 64% reported seeking support for themselves, 72% for the cancer patient, and 22% did not seek any support. The most common sources of support were general practitioners and online. Higher caregiver burden, higher income, caring for someone with anxiety/depression or caring for someone who has difficulty completing their usual activities were associated with seeking support from a greater number of sources. The 'No support-seekers' profile had the highest proportions of caregivers who were male, caring for someone <12 months post-diagnosis and lower income earners. CONCLUSIONS: Many rural caregivers seek support for themselves and the cancer patient, commonly from medical and online sources. IMPLICATIONS FOR PUBLIC HEALTH: Further work may be needed to reduce caregiver burden and support caregivers who are male, caring for someone recently diagnosed, and those with lower incomes.


Subject(s)
Caregivers , Neoplasms , Male , Humans , Female , Depression , Rural Population , Surveys and Questionnaires
14.
Biomedicines ; 10(9)2022 Sep 08.
Article in English | MEDLINE | ID: mdl-36140327

ABSTRACT

Despite developing prenatally, the adipose tissue is unique in its ability to undergo drastic growth even after reaching its mature size. This development and subsequent maintenance rely on the proper coordination between the vascular niche and the adipose compartment. In this review, the process of adipose tissue development is broken down to explain (1) the ultrastructural matrix remodeling that is undertaken during simultaneous adipogenesis and angiogenesis, (2) the paracrine crosstalk involved during adipose development, (3) the mechanical regulators involved in adipose growth, and (4) the proteolytic and paracrine oversight for matrix remodeling during adipose development. It is crucial to gain a better understanding of the complex relationships that exist between adipose tissue and the vasculature during tissue development to provide insights into the pathological tissue expansion of obesity and to develop improved soft-tissue reconstruction techniques.

15.
Curr Med Res Opin ; 38(11): 1909-1922, 2022 11.
Article in English | MEDLINE | ID: mdl-35980115

ABSTRACT

Objective: Treatment outcomes for chronic pain can be poor in patients with depression, anxiety, or insomnia. This analysis evaluated the efficacy and safety of subcutaneous tanezumab, nonsteroidal anti-inflammatory drugs (NSAIDs), and placebo in patients with osteoarthritis (OA) and a history of these conditions using data from three phase 3 studies.Methods: A post-hoc analysis of data from two pooled placebo-controlled studies and one NSAID-controlled study of subcutaneous tanezumab. All patients had moderate to severe knee or hip OA that was inadequately controlled with standard-of-care analgesics. Efficacy outcomes were least-squares mean change from baseline to Week 16 in Western Ontario McMaster Universities OA Index (WOMAC) Pain, WOMAC Physical Function, Patient's global assessment of OA, and EQ-5D-5L scores. Results were summarized for patients with and without a history of depression, anxiety, or insomnia at baseline.Results: 1545 patients were treated in the pooled placebo-controlled studies (history of depression, 12%; anxiety, 8%; insomnia, 10%; any, 23%) and 2996 in the NSAID-controlled study (16%, 11%, 13%, 28%, respectively). In groups with positive histories, 38-80% took antidepressant or anxiolytic medications at baseline. Within treatments, largely similar improvements in efficacy outcomes were observed in patients with and without a history of depression, anxiety, or insomnia; the types of treatment-emergent adverse events were similar.Conclusions: Patients with OA and a history of depression, anxiety, or insomnia did not appear to experience reduced efficacy outcomes or an altered safety profile in response to tanezumab or NSAID treatment as compared with those without. NCT02697773; NCT02709486; NCT02528188.


Subject(s)
Osteoarthritis, Hip , Osteoarthritis, Knee , Sleep Initiation and Maintenance Disorders , Humans , Osteoarthritis, Knee/complications , Osteoarthritis, Knee/drug therapy , Osteoarthritis, Hip/complications , Osteoarthritis, Hip/drug therapy , Sleep Initiation and Maintenance Disorders/drug therapy , Depression/drug therapy , Pain Measurement , Double-Blind Method , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Treatment Outcome , Anxiety/drug therapy
16.
J Acad Nutr Diet ; 122(9): 1607-1628.e12, 2022 09.
Article in English | MEDLINE | ID: mdl-35595188

ABSTRACT

BACKGROUND: Little is known about the dietary practices of women who have completed primary treatment for ovarian cancer, many of whom will go on to have cancer recurrence and further treatment. Knowledge of dietary practices is needed to optimize care. OBJECTIVE: Our aim was to identify dietary practices after primary treatment for ovarian cancer and evaluate how these practices differ by disease recurrence and treatment status. DESIGN: Women with invasive epithelial ovarian cancer were provided with the following open-ended question after completing a food frequency questionnaire: "Is there anything we haven't asked you about your diet in the last 1 to 2 months that you feel is important?" PARTICIPANTS/SETTING: Participants were from the OPAL (Ovarian Cancer Prognosis and Lifestyle) Study in Australia. MAIN OUTCOMES: The main outcomes were dietary practices after primary treatment for ovarian cancer and factors affecting these practices. ANALYSIS: Participants' responses were analyzed using content analysis. Individual content codes were categorized and reported by recurrence and treatment status at questionnaire completion. RESULTS: Two hundred eighty-six women provided responses on 363 questionnaires. Those undergoing further treatment for recurrence commonly reported dietary regimens with clinical indications (eg, low fiber to avoid bowel obstructions, high energy/protein to minimize nutritional deficits). Those not undergoing further treatment frequently reported "popular" diets (eg, organic, plant-based, and alkaline). For women with cancer recurrence, dietary practices were affected by poor appetite and late effects of treatment. For women without recurrence, other comorbidities, geographical location, family, and friends appeared to influence dietary practices. In both groups, nutrition information sources and personal beliefs informed dietary practices. Participant responses that referenced media or online sources often included misinformation. CONCLUSIONS: After primary treatment for ovarian cancer, women report dietary practices that may not be captured in standard food frequency questionnaires. Dietary practices and factors affecting these practices likely differ by treatment and recurrence status. Improved access to evidence-based dietary information and support is needed.


Subject(s)
Diet , Ovarian Neoplasms , Carcinoma, Ovarian Epithelial , Female , Humans , Nutritional Status , Ovarian Neoplasms/therapy , Surveys and Questionnaires
17.
Curr Res Physiol ; 5: 99-108, 2022.
Article in English | MEDLINE | ID: mdl-35243359

ABSTRACT

The passive mechanical properties of the vertebrate heart are controlled in part by the composition of the extracellular matrix (ECM). Changes in the ECM, caused by increased blood pressure, injury or disease can affect the capacity of the heart to fill with blood during diastole. In mammalian species, cardiac fibrosis caused by an increase in collagen in the ECM, leads to a loss of heart function and these changes in composition are considered to be permanent. Recent work has demonstrated that the cardiac ventricle of some fish species have the capacity to both increase and decrease collagen content in response to thermal acclimation. It is thought that these changes in collagen content help maintain ventricle function over seasonal changes in environmental temperatures. This current work reviews the cellular mechanisms responsible for regulating collagen deposition in the mammalian heart and proposes a cellular pathway by which a change in temperature can affect the collagen content of the fish ventricle through mechanotransduction. This work specifically focuses on the role of transforming growth factor ß1, MAPK signaling pathways, and biomechanical stretch in regulating collagen content in the fish ventricle. It is hoped that this work increases the appreciation of the use of comparative models to gain insight into phenomenon with biomedical relevance.

18.
Elife ; 112022 01 12.
Article in English | MEDLINE | ID: mdl-35018887

ABSTRACT

The extensive crosstalk between the developing heart and lung is critical to their proper morphogenesis and maturation. However, there remains a lack of models that investigate the critical cardio-pulmonary mutual interaction during human embryogenesis. Here, we reported a novel stepwise strategy for directing the simultaneous induction of both mesoderm-derived cardiac and endoderm-derived lung epithelial lineages within a single differentiation of human-induced pluripotent stem cells (hiPSCs) via temporal specific tuning of WNT and nodal signaling in the absence of exogenous growth factors. Using 3D suspension culture, we established concentric cardio-pulmonary micro-Tissues (µTs), and expedited alveolar maturation in the presence of cardiac accompaniment. Upon withdrawal of WNT agonist, the cardiac and pulmonary components within each dual-lineage µT effectively segregated from each other with concurrent initiation of cardiac contraction. We expect that our multilineage differentiation model will offer an experimentally tractable system for investigating human cardio-pulmonary interaction and tissue boundary formation during embryogenesis.


Organs begin developing during the first few months of pregnancy, while the baby is still an embryo. These early stages of development are known as embryogenesis ­ a tightly organized process, during which the embryo forms different layers of stem cells. These cells can be activated to turn into a particular type of cell, such as a heart or a lung cell. The heart and lungs develop from different layers within the embryo, which must communicate with each other for the organs to form correctly. For example, chemical signals can be released from and travel between layers of the embryo, activating processes inside cells located in the different areas. In mouse models, chemical signals and cells travel between developing heart and lung, which helps both organs to form into the correct structure. But it is unclear how well the observations from mouse models translate to heart and lung development in humans. To find out more, Ng et al. developed a human model of heart and lung co-development during embryogenesis using human pluripotent stem cells. The laboratory-grown stem cells were treated with chemical signals, causing them to form different layers that developed into early forms of heart and lung cells. The cells were then transferred into a specific growing condition, where they arranged into three-dimensional structures termed microtissues. Ng et al. found that lung cells developed faster when grown in microtissues with accompanying developing heart cells compared to microtissues containing only developing lung cells. In addition, Ng et al. revealed that the co-developing heart and lung tissues automatically separate from each other during later stage, without the need for chemical signals. This human cell-based model of early forms of co-developing heart and lung cells may help provide researchers with new strategies to probe the underlying mechanisms of human heart and lung interaction during embryogenesis.


Subject(s)
Cell Differentiation , Heart/physiology , Induced Pluripotent Stem Cells/physiology , Lung/cytology , Organoids/cytology , Humans , Lung/physiology , Mesoderm , Signal Transduction
19.
Health Promot J Austr ; 33(1): 232-244, 2022 Jan.
Article in English | MEDLINE | ID: mdl-33890348

ABSTRACT

ISSUE ADDRESSED: To support survivor-centred care in Australia, this review maps current knowledge regarding adult cancer survivors' perspectives of dietary information provision post-treatment. METHODS: A scoping review of research conducted in Australia within the past decade reported using PRISMA-ScR guidelines. Seven databases were searched (01/01/2009-05/06/2020) and records were independently screened by two researchers using eligibility criteria. Papers in the peer-reviewed literature with dietary information post-treatment as a primary and secondary outcome were eligible for inclusion. Data charting included participant characteristics, study methodology and cancer survivors' reports of dietary information provision post-treatment. RESULTS: Of 531 records identified, 12 met eligibility criteria. Most studies included breast (58%) and colorectal (42%) cancer survivors within 5 years post-diagnosis (84%). Three studies were conducted amongst specific ethnic groups (Indigenous Australians, Chinese-Australians, Greek-Australians). Participants in the included studies commonly reported limited or ineffective dietary information from healthcare providers post-treatment. Cancer survivors identified a need for individualised information regarding dietary strategies to manage ongoing symptoms, professional support for weight management, and practical skills for healthy eating. Amongst ethnic groups, there was a need for dietary information that considers traditional foods and cultural beliefs, and is available in their native language. Cancer survivors valued ongoing dietary follow-up and support post-treatment, and suggested a variety of face-to-face and online delivery modes. Those residing in rural and remote areas reported barriers to accessing dietary information post-treatment including time, cost, and availability of local services. CONCLUSIONS: There is scope to improve dietary information provision after cancer treatment in Australia. SO WHAT?: Dietary guidance post-treatment should consider individual needs, cultural background, and opportunity for ongoing follow-up and support.


Subject(s)
Cancer Survivors , Neoplasms , Adult , Australia , Diet , Humans , Neoplasms/therapy , Rural Population
20.
Hist Psychol ; 24(4): 301-322, 2021 11.
Article in English | MEDLINE | ID: mdl-34807663

ABSTRACT

A frequently recounted narrative about the history of the scientific study of emotion moves quickly from the 19th century pioneers, Charles Darwin and William James, to the 1960s when the cognitive turn and basic emotions approach reemerged. The early-to-mid 20th century is often passed over as a period of behaviorist domination where little substantive work on inner states such as emotion took place. While the neurological theories of James Papez and Paul MacLean proposed during this period are usually mentioned, psychological experimentation and theorizing are typically given short shrift when discussing this era. Reconsideration of the life and work of Elizabeth Duffy (1904-1970), a trenchant critic of the use of emotion as a scientific term during the 1930s and 1940s, reveals that many contemporary debates about the definition of emotion and its relationship to other psychological terms were engaged with vigor during this supposedly arid period for the scientific study of emotion. Duffy questioned the adequacy of everyday language for describing foundational psychological constructs. In her opinion, the term emotion was too imprecise and poorly defined to be of use for scientific purposes The professional difficulties faced by female scientists of her generation are among the multiplicity of factors that contribute to the lack of historical attention to Duffy's work. Here we present Duffy's life and work as a case study of the "emotionology" of second-generation American women psychologists. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Subject(s)
Emotions , Language , Databases, Factual , Female , Head , History, 20th Century , Humans , Research Design , United States
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