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The peripartum management of obstetric patients with Chiari type I malformation remains a challenge due to the degree of cerebellar tonsillar herniation and a paucity of published evidence. There is concern about neuraxial anaesthetic blocks and uncertainty regarding the optimum mode of delivery. We systematically searched the literature for the obstetric management of patients with Chiari type I malformation, independent of publication date and language. We also searched our local hospital database from December 2009 to December 2022 for all deliveries to patients with this condition. We identified 137 cases comprising 103 deliveries described in 40 publications that met our inclusion criteria; 34 deliveries were identified in our local database. There were 84 spontaneous vaginal deliveries, 52 caesarean deliveries, and one delivery by unknown modality. Sixty neuraxial blocks were performed; approximately half of these were epidural procedures for labour analgesia. Six patients had new or worsened symptoms following delivery, but it is unclear whether these were related to their Chiari malformation. We identified no cases with brainstem herniation or severe symptoms. We discuss our findings in relation to other published literature and address the concerns described. Our review reveals the use of a variety of modes of delivery and anaesthetic techniques and that most patients suffered no neurological complication. We conclude there is no of evidence to avoid any one approach to labour analgesia, delivery and anaesthesia. We propose a holistic, individualised and patient-centred approach with an appraisal of the risks and benefits to support shared-decision making.
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BACKGROUND: The workplace is an ideal-and priority-setting for health promotion activities. Developing and implementing workplace health promotion interventions, including oral health promotion activities, can help create health-supporting workplace environments. OBJECTIVE: To pilot workplace oral health promotion activities among staff working in the aged care sector, report their impact and explore participants' views on the factors that contribute to participation and effectiveness. METHODS: This study comprised three phases: (i) the development and face validation of the resources, (ii) a 3-h educational session and (iii) five interview sessions with participants 4-6 weeks following the education session. The recorded interviews were transcribed verbatim and analysed thematically. RESULTS: Eleven community-aged care workforce were invited to five feedback sessions. Ten participants were female and ranged in age from 18 to 64. All participants gave favourable comments about the content and delivery of the training session and accompanying resources. The participants felt that the benefits of WOHP include improved staff knowledge, awareness and oral care routine, the ability to share (and put into practice) the gained knowledge and information with their dependants, a lower risk of having poor oral health that adversely affects their well-being and work tasks, and potentially beneficial impacts on the organization's staff roster. Their attendance in the WOHP was facilitated by being paid to attend and scheduling the sessions during work time. Future WOHP suggestions include the possibility of a one-stop dental check-up at the workplace or staff dental care discounts from local dental practitioners and combining oral health with other health promotion activities. CONCLUSIONS: Planning and implementing WOHP was deemed acceptable and feasible in this study context and successfully achieved short-term impacts among community-aged care workers. Appropriate times and locations, organizational arrangements and a variety of delivery options contributed to successful programme planning and implementation.
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INTRODUCTION: Many low-income New Zealanders attend emergency departments (EDs) for relief of dental pain and infection. This places a substantial burden on EDs. Better understanding of non-traumatic dental presentations (NTDPs) will aid the development of relevant health policy and clinical management strategies. AIM: To explore the nature, context and impact of NTDPs on New Zealand EDs. METHODS: A mixed-methods approach was used. Routinely collected data on NTDPs to ED at four New Zealand hospitals were analysed descriptively, and semi-structured interviews with ED and dental personnel (n=20) from the four hospitals were conducted and analysed thematically. RESULTS: Young adults (20-39 years), and Maori and Pacific people, were frequent ED attenders for NTDPs; repeat visits were common. Most were seen by non-dental health practitioners. Cost and access were identified as barriers to dental care. Management of NTDPs generally involved analgesics for relief of pain and antibiotics for infection management. All participants said definitive care pathways for NTDPs were lacking. There is potential to improve staff training in diagnosis and anaesthetic administration. However, participants were more interested in referral pathways and public funding for dental care. CONCLUSIONS: Accessible and equitable dental care pathways and policies are urgently required to enable timely and appropriate care for NTDPs.
Subject(s)
Dental Care , Emergency Service, Hospital , Native Hawaiian or Other Pacific Islander , Poverty , Adult , Female , Humans , Interviews as Topic , Male , New Zealand , Young AdultABSTRACT
Nurses and midwives of Australia now is the time for change! As powerfully placed, Indigenous and non-Indigenous nursing and midwifery professionals, together we can ensure an effective and robust Indigenous curriculum in our nursing and midwifery schools of education. Today, Australia finds itself in a shifting tide of social change, where the voices for better and safer health care ring out loud. Voices for justice, equity and equality reverberate across our cities, our streets, homes, and institutions of learning. It is a call for new songlines of reform. The need to embed meaningful Indigenous health curricula is stronger now than it ever was for Australian nursing and midwifery. It is essential that nursing and midwifery leadership continue to build an authentic collaborative environment for Indigenous curriculum development. Bipartisan alliance is imperative for all academic staff to be confident in their teaching and learning experiences with Indigenous health syllabus. This paper is a call out. Now is the time for Indigenous and non-Indigenous nurses and midwives to make a stand together, for justice and equity in our teaching, learning, and practice. Together we will dismantle systems, policy, and practices in health that oppress. The Black Lives Matter movement provides us with a 'now window' of accepted dialogue to build a better, culturally safe Australian nursing and midwifery workforce, ensuring that Black Lives Matter in all aspects of health care.
Subject(s)
Administrative Personnel/psychology , Black or African American/psychology , Culturally Competent Care/organization & administration , Midwifery/education , Nursing Care/psychology , Nursing Staff, Hospital/psychology , Racism/prevention & control , Students, Nursing/psychology , Adult , Australia , Curriculum , Education, Nursing, Baccalaureate , Female , Humans , Leadership , Male , Middle Aged , Nursing Staff, Hospital/education , Pregnancy , Racism/psychologyABSTRACT
There is an increasing need to measure treatment-related side effects in normal tissues following cancer therapy. The ALERT-B (Assessment of Late Effects of RadioTherapy - Bowel) questionnaire is a screening tool that is composed of four items related specifically to bowel symptoms. Those patients that respond with a "yes" to any of these items are referred on to gastroenterologist in order to improve the long-term consequences of these side effects of radiological treatment. Here we wish to test the ability of this questionnaire to identify these subsequent gastroenterological complications by tracking prostate cancer patients that were positive with respect to ALERT-B. We also carry out receiver-operator curve (ROC) analysis for baseline data for an overall ALERT-B questionnaire score with respect to subscale data for the Gastrointestinal Symptom Rating Scale (GSRS) and the Expanded Prostate Cancer Index Composite (EPIC-26) questionnaire. 84.4% and 95.7% of patients identified by the ALERT-B questionnaire demonstrated complications diagnosed at 6 and 12 months post-treatment, respectively. ROC curve analysis of baseline data showed that ALERT-B detected clinically relevant levels of side effects established at baseline by the GSRS diarrhoea subscale (AUC = 0.867, 95% CI = 0.795 to 0.926) and at the minimally important level of side effects for the EPIC bowel subscale (AUC = 0.765, 95% CI = 0.617 to 0.913). These results show that ALERT-B provides a simple and effective screening tool for identifying gastroenterological complications after treatment for prostate cancer.
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BACKGROUND: Polypharmacy is associated with inappropriate medication use, and subsequently increasing older persons' risk of drug-related harm and health-related costs to individuals and society. OBJECTIVE: To examine and describe, using a national sample of patient-level medication data, the prevalence of older people's polypharmacy and medication use across dependency levels. To examine oral and general pain prevalence and associated analgesic usage. METHODS: Medication data from the 2012 New Zealand Older People's Oral Health Survey, a nationally-representative, cross-sectional study of dependent older people's oral health, were analysed descriptively, comparing classes and sub-classes of drugs and nutrient supplements taken across four categories of dependency: very low (own homes receiving in-home support), low, high and psychogeriatric (all receiving aged residential care). Self-reported current general pain and frequency of orofacial pain data were cross-tabulated by sub-classes of analgesics taken. RESULTS: All participants were taking at least one medication overall, 53.2% (95% CI: 50.4, 56.0) took between five and nine (polypharmacy), and 13.9% (95% CI: 17.4, 22.5) took 10 or more (hyperpolypharmacy). Antihypertensives, analgesics, antiulcer drugs, aspirin, laxatives, statins and antidepressants were the most common drug classes taken, the proportions differing between psychogeriatric level care and all other dependency groups. Overall, simple analgesics were taken (34.5%; 95%CI: 30.8, 38.4) more commonly than other analgesics; the use of nonsteroidal anti-inflammatory drugs was low (3.6%; 95% CI: 2.7, 4.7). Of those reporting experiencing extreme general bodily pain, 63.3% (95% CI: 56.6, 69.4) took an analgesic, more than those experiencing mouth pain occasionally or often. Fat-soluble vitamins were the most common vitamin supplement taken (32.0%; 95%CI: 27.0, 37.4). CONCLUSIONS: Polypharmacy and hyperpolypharmacy are common among older people, regardless of dependency level, and pain may be undertreated.
Subject(s)
Analgesics , Polypharmacy , Aged , Aged, 80 and over , Analgesics/therapeutic use , Cross-Sectional Studies , Humans , New Zealand/epidemiology , Pain/drug therapyABSTRACT
BACKGROUND: Simulation is an effective strategy for enhancing interprofessional education (IPE) and collaboration (IPC). OBJECTIVES: A novel interprofessional learning model, The RIPE Model (Reflective Interprofessional Education Model) was applied for a pilot study during a simulation laboratory aimed to (i) enhance pharmacy and nursing students' understanding of the roles and responsibilities of professions within the multidisciplinary healthcare team; and (ii) enhance the importance of working collaboratively in team-based care. METHODS: The pilot study using a mixed-methods approach, including the administration of a 6-item student survey on a 6-point Likert-type scale as a pre-test (prior to participation in the simulation laboratory) and post-test (after participation in the simulation laboratory), and a debriefing session eliciting a follow up written reflective statement. RESULTS: Sixty-four students (nâ¯=â¯56 pharmacy; nâ¯=â¯8 nursing) participated in the study which resulted nâ¯=â¯52 pharmacy students and nâ¯=â¯8 nursing students matched data to a pre-test and post-test survey, analyzed via paired t-tests. Statistically significant results (pâ¯<â¯0.05) reported a positive increase in pharmacy students' perceptions from the pre-test and post-test survey for all six items indicating the extent of agreement of IPC; and for one item on the nursing student survey. Qualitative analysis of reflective statements (nâ¯=â¯62) was conducted via thematic analysis utilizing Braun and Clarke's 6-phase process. Thematic analysis generated one overarching theme: IPC: Developing appreciation and respect for healthcare team members to improve patient outcomes; and three subthemes: (i) Enhanced decision-making; (ii) Communication and collaboration; (iii) New understandings of roles and responsibilities. CONCLUSIONS: Students perceived that utilizing the RIPE Model of learning involving simulation to enhance interprofessional collaboration assisted their understanding of the roles, functions and responsibilities of other healthcare professionals involved the patient care team. Effective collaboration was perceived to be beneficial to enhancing confidence with engagement and communication, appreciation and respect for the expertise of other healthcare professions.
Subject(s)
Interprofessional Relations , Models, Theoretical , Students, Nursing , Students, Pharmacy , Humans , Learning , Patient Care Team , Pilot ProjectsABSTRACT
This paper describes a novel model to providing interprofessional education (IPE) and interprofessional collaboration (IPC) within a simulated healthcare environment, in the higher education setting. The RIPE Model (Reflective Interprofessional Education Model) was developed for the purpose of enhancing IPE and IPC, clinical judgement, and decision-making between health professional students (pharmacy and nursing students) at the patient's simulated hospital bedside. A foundation 'unfolding' case utilizing the RIPE model was piloted with first year Master of pharmacy students and postgraduate nursing students at an Australian university and included a pharmacy practitioner acting as a resident medical officer (RMO) for the purpose of the teaching module. The RIPE model rotated students through 10 stations (including 2 reflection stations) to unpack an unfolding case. The development of the RIPE model, processes, and future directions are included in this article. The RIPE Model provides the flexibility to adapt and tailor different cases and scenarios to include other health professional students to enhance educational outcomes, with the feedback of the learning to potentially improve future patient outcomes. Furthermore, the model has the potential to be tailored and utilized for the purpose of upskilling practicing pharmacists for Continuing Professional Development (CPD) and changing scopes of practice.
Subject(s)
Cooperative Behavior , Interprofessional Relations , Models, Organizational , Australia , Decision Making , Education, Continuing , Health Personnel , Humans , Patient Care Team , Students, Nursing , Students, PharmacyABSTRACT
AIMS: To analyse outcomes in metastatic castrate-resistant prostate cancer (mCRPC) patients treated with radium 223 (Ra-223) across the Yorkshire and Humber Cancer Network. MATERIALS AND METHODS: A regional, multicentre, retrospective cohort study of 189 men undergoing Ra-223 for mCRPC between March 2014 and April 2017 was undertaken. Factors predicting overall survival and completion of planned treatment were assessed. RESULTS: The median overall survival for the entire cohort was 10.5 months. Those completing five to six cycles of Ra-223 had a higher overall survival of 18.6 months. On multivariable analysis, four factors remained independent significant predictors of overall survival: age (P = 0.005, hazard ratio 1.07 [1.02-1.12]); number of cycles of Ra-223: 5-6 versus 1-4 (P ≤ 0.001, hazard ratio 0.10 [0.005-0.20]); baseline alkaline phosphatase (P = 0.044, hazard ratio 1.06 [1.002-1.12]); neutrophil-to-lymphocyte ratio (P = 0.033, hazard ratio 1.19 [1.01-1.40]). Baseline performance status 0 versus 2 (P = 0.026, odds ratio 0.080 [0.001-0.74]) and higher baseline haemoglobin (P = 0.028, odds ratio 1.04 [1.004-1.074]) were independent predictors of the completion of five to six cycles of Ra-223. CONCLUSIONS: Younger age, completion of five to six cycles of Ra-223, lower alkaline phosphatase and neutrophil-to-lymphocyte ratio are predictors of overall survival. This is the first study to report neutrophil-to-lymphocyte ratio as an independent predictor of overall survival in a Ra-223 cohort. Good performance status and higher baseline haemoglobin predict the completion of five to six cycles of Ra-223.
Subject(s)
Bone Neoplasms/drug therapy , Prostatic Neoplasms, Castration-Resistant/blood , Prostatic Neoplasms, Castration-Resistant/drug therapy , Radium/therapeutic use , Age Factors , Aged , Aged, 80 and over , Alkaline Phosphatase/blood , Bone Neoplasms/secondary , Health Status , Hemoglobins/metabolism , Humans , Lymphocyte Count , Male , Middle Aged , Neutrophils , Proportional Hazards Models , Prostatic Neoplasms, Castration-Resistant/pathology , Retrospective Studies , Survival RateABSTRACT
This paper describes the development and application of a systematic methodology to identify and quantify risks in drinking water and recreational catchments. The methodology assesses microbial and chemical contaminants from both diffuse and point sources within a catchment using Escherichia coli, protozoan pathogens and chemicals (including fuel and pesticides) as index contaminants. Hazard source information is gathered by a defined sanitary survey process involving use of a software tool which groups hazards into six types: sewage infrastructure, on-site sewage systems, industrial, stormwater, agriculture and recreational sites. The survey estimates the likelihood of the site affecting catchment water quality, and the potential consequences, enabling the calculation of risk for individual sites. These risks are integrated to calculate a cumulative risk for each sub-catchment and the whole catchment. The cumulative risks process accounts for the proportion of potential input sources surveyed and for transfer of contaminants from upstream to downstream sub-catchments. The output risk matrices show the relative risk sources for each of the index contaminants, highlighting those with the greatest impact on water quality at a sub-catchment and catchment level. Verification of the sanitary survey assessments and prioritisation is achieved by comparison with water quality data and microbial source tracking.
Subject(s)
Environmental Monitoring/methods , Water Pollutants, Chemical/analysis , Water Quality , Drinking Water/microbiology , Drinking Water/parasitology , QueenslandABSTRACT
OBJECTIVE: Many cell types lose responsiveness to anabolic factors during inflammation and disease. Osteogenic Protein 1 (OP1/BMP7) was evaluated for the ability to enhance extracellular matrix synthesis in healthy and OA meniscus cells. Mechanisms of cell response to OP1 were explored. DESIGN: Meniscus and cartilage tissues from healthy tissue donors and osteoarthritis (OA) patients undergoing total knee arthroplasties were acquired. Primary cell cultures were stimulated with OP1 and/or inflammatory factors (IL1α, IL1ß, or fibronectin fragments (FnF)) and cellular responses were analyzed by RT-qPCR and immunoblots. Frozen section immunohistochemistry (IHC) was conducted to assess OP1 and receptor proteins in normal and OA meniscus. RESULTS: OP1 treatment of normal meniscus cells resulted in significant, dose-dependent increases in ACAN (aggrecan) and COL2A1, and decreased MMP13 gene transcription, while only ACAN was upregulated (P < 0.01) at the highest dose of OP1 in OA meniscus cells. OP1 induced significantly more ACAN gene transcription in normal meniscus than normal articular cartilage (P = 0.05), and no differences between normal and OA cartilage were detected. Receptor expression and kinetics of canonical signaling activation were similar between normal and OA specimens. Normal meniscus cells treated with inflammatory factors were refractory to OP1 stimulation. Smad1 phosphorylation at an inhibitory site was induced (P = 0.01 for both normal and OA meniscus) by inflammatory cytokine treatment. CONCLUSIONS: The meniscus demonstrates resistance to OP1 stimulation in OA and in the presence of inflammatory mediators. MAPK-mediated Smad1 linker phosphorylation is a possible mediator of the loss of anabolic extracellular matrix production in the inflammatory cytokine affected meniscus.
Subject(s)
Osteoarthritis , Aggrecans , Bone Morphogenetic Protein 7 , Cartilage, Articular , Cells, Cultured , Chondrocytes , Humans , MeniscusABSTRACT
OBJECTIVE: Meniscus injury increases osteoarthritis risk but its pathobiology in osteoarthritis is unclear. We hypothesized that older adult vervet monkeys would exhibit knee osteoarthritic changes and the degenerative menisci from these animals would secrete matrix metalloproteinases (MMPs) and pro-inflammatory cytokines that contribute to the development of osteoarthritis. DESIGN: In a cross sectional analysis of healthy young adult (9-12 years) and old (19-26 years) adult female vervet monkeys, knees were evaluated in vivo with computed tomography (CT) imaging, and joint tissues were morphologically graded at necropsy. Meniscus explants were subsequently cultured to evaluate meniscal MMP and cytokine secretion. RESULTS: CT images revealed significant bony osteoarthritic changes in 80% of older monkeys which included increases in osteophyte number and meniscal calcification. Meniscus and cartilage degradation scores were greater in the older monkeys and were positively correlated (r > 0.7). Menisci from older animals exhibiting osteoarthritic changes secreted significantly more MMP-1, MMP-3, and MMP-8 than healthy menisci from younger monkeys. Older menisci without significant osteoarthritic changes secreted more IL-7 than healthy young menisci while older osteoarthritic menisci secreted more IL-7 and granulocyte-macrophage colony-stimulating factor than healthy older menisci. CONCLUSIONS: Aged vervets develop naturally occurring knee osteoarthritis that includes involvement of the meniscus. Degenerative menisci secreted markedly increased amounts of matrix-degrading enzymes and inflammatory cytokines. These factors would be expected to act on the meniscus tissue and local joint tissues and may ultimately promote osteoarthritis development. These finding also suggest vervet monkeys are a useful animal model for studying the progression of osteoarthritis.
Subject(s)
Cytokines/metabolism , Knee Joint/metabolism , Matrix Metalloproteinases, Secreted/metabolism , Menisci, Tibial/metabolism , Osteoarthritis, Knee/metabolism , Age Factors , Animals , Cartilage, Articular/diagnostic imaging , Cartilage, Articular/metabolism , Chlorocebus aethiops , Female , Granulocyte-Macrophage Colony-Stimulating Factor/metabolism , Interleukin-7 , Knee Joint/diagnostic imaging , Matrix Metalloproteinase 1/metabolism , Matrix Metalloproteinase 3/metabolism , Matrix Metalloproteinase 8/metabolism , Menisci, Tibial/diagnostic imaging , Osteoarthritis, Knee/diagnostic imaging , RadiographyABSTRACT
Dietary management of 418 adult patients with galactosaemia (from 39 centres/12 countries) was compared. All centres advised lactose restriction, 6 restricted galactose from galactosides ± fruits and vegetables and 12 offal. 38% (n=15) relaxed diet by: 1) allowing traces of lactose in manufactured foods (n=13) or 2) giving fruits, vegetables and galactosides (n=2). Only 15% (n=6) calculated dietary galactose. 32% of patients were lost to dietetic follow-up. In adult galactosaemia, there is limited diet relaxation.
Subject(s)
Diet , Galactose/administration & dosage , Galactosemias/diet therapy , Adult , Food , Fruit , Humans , Lactose/administration & dosage , Surveys and Questionnaires , VegetablesSubject(s)
Anemia/epidemiology , Colitis, Ulcerative/epidemiology , Crohn Disease/epidemiology , Female , Humans , MaleABSTRACT
We describe a technique using a focused ion beam instrument to fabricate high quality plan-view specimens for transmission electron microscopy studies. The technique is simple, site-specific and is capable of fabricating multiple large, >100 µm(2) electron transparent windows within epitaxially grown thin films. A film of La0.67Sr0.33MnO3 is used to demonstrate the technique and its structural and functional properties are surveyed by high resolution imaging, electron spectroscopy, atomic force microscopy and Lorentz electron microscopy. The window is demonstrated to have good thickness uniformity and a low defect density that does not impair the film's Curie temperature. The technique will enable the study of in-plane structural and functional properties of a variety of epitaxial thin film systems.
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AIM: High-intensity exercise is time-limited by onset of fatigue, marked by accumulation of blood lactate. This is accentuated at maximal, all-out exercise that rapidly accumulates high blood lactate. The optimal active recovery intensity for clearing lactate after such maximal, all-out exercise remains unknown. Thus, we studied the intensity-dependence of lactate clearance during active recovery after maximal exercise. METHODS: We constructed a standardized maximal, all-out treadmill exercise protocol that predictably lead to voluntary exhaustion and blood lactate concentration>10 mM. Next, subjects ran series of all-out bouts that increased blood lactate concentration to 11.5±0.2 mM, followed by recovery exercises ranging 0% (passive)-100% of the lactate threshold. RESULTS: Repeated measurements showed faster lactate clearance during active versus passive recovery (P<0.01), and that active recovery at 60-100% of lactate threshold was more efficient for lactate clearance than lower intensity recovery (P<0.05). Active recovery at 80% of lactate threshold had the highest rate of and shortest time constant for lactate clearance (P<0.05), whereas the response during the other intensities was graded (100%=60%>40%>passive recovery, P<0.05). CONCLUSION: Active recovery after maximal all-out exercise clears accumulated blood lactate faster than passive recovery in an intensity-dependent manner, with maximum clearance occurring at active recovery of 80% of lactate threshold.
Subject(s)
Exercise/physiology , Lactates/blood , Recovery of Function/physiology , Exercise Test , Heart Rate/physiology , Humans , Male , Oxygen Consumption/physiology , Young AdultABSTRACT
OBJECTIVE: Meniscus injury increases the risk of osteoarthritis; however, the biologic mechanism remains unknown. We hypothesized that pro-inflammatory stimulation of meniscus would increase production of matrix-degrading enzymes, cytokines and chemokines which cause joint tissue destruction and could contribute to osteoarthritis development. DESIGN: Meniscus and cartilage tissue from healthy tissue donors and total knee arthroplasties (TKAs) was cultured. Primary cell cultures were stimulated with pro-inflammatory factors [IL-1ß, IL-6, or fibronectin fragments (FnF)] and cellular responses were analyzed by real-time PCR, protein arrays and immunoblots. To determine if NF-κB was required for MMP production, meniscus cultures were treated with inflammatory factors with and without the NF-κB inhibitor, hypoestoxide. RESULTS: Normal and osteoarthritic meniscus cells increased their MMP secretion in response to stimulation, but specific patterns emerged that were unique to each stimulus with the greatest number of MMPs expressed in response to FnF. Meniscus collagen and connective tissue growth factor (CTGF) gene expression was reduced. Expression of cytokines (IL-1α, IL-1ß, IL-6), chemokines (IL-8, CXCL1, CXCL2, CSF1) and components of the NF-κB and tumor necrosis factor (TNF) family were significantly increased. Cytokine and chemokine protein production was also increased by stimulation. When primary cell cultures were treated with hypoestoxide in conjunction with pro-inflammatory stimulation, p65 activation was reduced as were MMP-1 and MMP-3 production. CONCLUSIONS: Pro-inflammatory stimulation of meniscus cells increased matrix metalloproteinase production and catabolic gene expression. The meniscus could have an active biologic role in osteoarthritis development following joint injury through increased production of cytokines, chemokines, and matrix-degrading enzymes.
Subject(s)
Cytokines/biosynthesis , Inflammation Mediators/pharmacology , Matrix Metalloproteinases/biosynthesis , Menisci, Tibial/metabolism , Osteoarthritis, Knee/metabolism , Adult , Aged , Aged, 80 and over , Cells, Cultured , Chemokines/biosynthesis , Chemokines/genetics , Culture Media, Conditioned , Cytokines/genetics , Diterpenes/pharmacology , Gene Expression Regulation/drug effects , Humans , Menisci, Tibial/drug effects , Menisci, Tibial/pathology , Middle Aged , NF-kappa B/antagonists & inhibitors , NF-kappa B/physiology , Osteoarthritis, Knee/pathology , Protein Array Analysis/methods , Real-Time Polymerase Chain Reaction/methods , Signal Transduction/physiologyABSTRACT
BACKGROUND: Within Europe, the management of pyridoxine (B6) non-responsive homocystinuria (HCU) may vary but there is limited knowledge about treatment practice. AIM: A comparison of dietetic management practices of patients with B6 non-responsive HCU in European centres. METHODS: A cross-sectional audit by questionnaire was completed by 29 inherited metabolic disorder (IMD) centres: (14 UK, 5 Germany, 3 Netherlands, 2 Switzerland, 2 Portugal, 1 France, 1 Norway, 1 Belgium). RESULTS: 181 patients (73% >16 years of age) with HCU were identified. The majority (66%; n=119) were on dietary treatment (1-10 years, 90%; 11-16 years, 82%; and >16 years, 58%) with or without betaine and 34% (n=62) were on betaine alone. The median natural protein intake (g/day) on diet only was, by age: 1-10 years, 12 g; 11-16 years, 11 g; and >16 years, 45 g. With diet and betaine, median natural protein intake (g/day) by age was: 1-10 years, 13 g; 11-16 years, 20 g; and >16 years, 38 g. Fifty-two percent (n=15) of centres allocated natural protein by calculating methionine rather than a protein exchange system. A methionine-free l-amino acid supplement was prescribed for 86% of diet treated patients. Fifty-two percent of centres recommended cystine supplements for low plasma concentrations. Target treatment concentrations for homocystine/homocysteine (free/total) and frequency of biochemical monitoring varied. CONCLUSION: In B6 non-responsive HCU the prescription of dietary restriction by IMD centres declined with age, potentially associated with poor adherence in older patients. Inconsistencies in biochemical monitoring and treatment indicate the need for international consensus guidelines.