Publications by authors named "Doorn M"

Background: A significant proportion of mental health care professionals (MHCPs) hold stigmatizing attitudes about their patients. When patients perceive and internalize these beliefs, self-stigmatization can increase. Acceptance and Commitment Therapy (ACT) may decrease stigmatizing attitudes by changing the 'us' versus 'them' thinking into continuum beliefs.

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  • The study explores the health of managed honey bees in Lambayeque, Peru, focusing on factors like management practices and beekeeper traits that affect bee health.
  • Results indicate significant pesticide contamination in bee bread, with 67% of samples showing residues from chemicals like chlorpyrifos and carbendazim, largely due to increased agricultural land use.
  • Insufficient beekeeper training in best practices contributes to weakened bee colonies and high Varroa mite infestation, revealing the negative impact of human activities on honey bee populations in this coastal region.
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  • CRUSE® is an app designed for people with chronic spontaneous urticaria (CSU) to track their symptoms using visual analogue scales (VASs), aiming to assess the app's effectiveness in measuring disease activity.
  • A study analyzed three VASs related to CSU impact on daily life, including one specifically for the severity of urticaria, one for productivity, and a general health measure (EQ-5D), using data from nearly 6,000 patients over many days.
  • The results showed that the CRUSE® app's VASs demonstrate strong validity and reliability, with the "VAS urticaria" being most effective in capturing symptom changes, while the minimal important difference (MID) values indicated meaningful changes
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Psoriasis is an inflammatory skin disease associated with an impaired skin barrier. The skin barrier function is dependent on the extracellular lipid matrix which surrounds the corneocytes in the stratum corneum. Ceramides comprise essential components of this matrix.

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  • Long-term effectiveness and safety of omalizumab for Chronic Inducible Urticaria (CIndU) were evaluated in a large cohort across 14 specialized centers, revealing it to be highly effective for most patients.
  • Out of 234 patients, 73% reported significant improvements while the median treatment duration exceeded 5 years, mainly due to disease control.
  • Patient age was a predictor of treatment continuation, with older patients less likely to discontinue due to well-controlled disease, and CIndU subtype did not impact treatment response or duration.
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  • The study focused on how doctors use a treatment called intralesional corticosteroid administration (ICA) for keloids, which are raised scars.
  • A group of 23 keloid experts worked together online to agree on the best methods for using this treatment to help improve results.
  • They reached agreements on some practices but didn’t all agree on the exact dosage and other details, highlighting the need for clearer treatment guidelines.
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  • Patients with Immune Mediated Inflammatory Diseases (IMIDs) on immunosuppressive therapy are at higher risk for vaccine-preventable infections, prompting this study to assess their vaccination rates against guidelines.
  • A survey sent to IMID patients at a Rotterdam hospital revealed that while 92% were vaccinated per national guidelines, many still lacked vaccinations for measles and diphtheria/tetanus/polio, and only a fraction received regular pneumococcal and influenza vaccines.
  • The study concludes that vaccination rates for these patients do not meet guidelines, and suggests focused efforts to improve vaccination compliance, especially for measles, diphtheria/tetanus/polio, and regular pneumococcal and influenza vaccinations.
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Background: Severe keloids are difficult to treat. Corticosteroid injections with needles are painful and associated with frequent recurrences. Therefore, more effective, safe and patient-friendly alternative treatments are urgently needed.

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Importance: Treating patients with chronic urticaria using omalizumab has been shown to be safe and effective in randomized clinical trials. Multinational studies on long-term omalizumab performance in chronic urticaria in clinical practice settings are lacking, especially on drug survival. Drug survival, which refers to the length of time that patients are treated with a specific drug, is a comprehensive outcome covering effectiveness, safety, and patient and physician preferences.

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The epidermal inflammation associated with psoriasis drives skin barrier perturbations. The skin barrier is primarily located in stratum corneum (SC). Its function depends on the SC lipid matrix of which ceramides constitute important components.

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  • Researchers looked at how different characteristics of keloids (which are thick, raised scars) can affect how well treatments work.
  • They found that factors like the age, size, location, and past treatment of keloids might change how effective treatments are.
  • The study highlighted that more research is needed to understand these factors better and create a better plan for treating keloids.
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  • Intralesional corticosteroid injections, like triamcinolone acetonide (TAC), are commonly used to treat keloids but don't always work well.
  • Researchers studied how TAC spreads in keloids and normal skin using different methods, like needles and special jet injectors.
  • They found that the way TAC spreads was different in keloids compared to normal skin, which might explain why the treatment is sometimes not effective, and they want to do more research to improve how it's delivered.
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  • The review examines rare anatomical variations that can lead to ulnar nerve compression and evaluates possible treatment options for affected patients.
  • A total of 48 studies involving 64 patients were analyzed, identifying various structures such as the anconeus epitrochlearis and vascular anomalies that contribute to this condition.
  • Surgery was performed on nearly all cases, leading to significant symptom relief or complete recovery, highlighting the importance of recognizing both proximal and distal compression symptoms.
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Management, brood nest structure and factors associated with varroa mite infestation were studied in 60 apiaries of Africanized honey bees in the northwest region of the Central Valley of Costa Rica. Apiaries were monitored two times. The first monitoring was taken forward during the rainy season between May and November 2019.

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Background: The inability to predict treatment response of colorectal cancer patients results in unnecessary toxicity, decreased efficacy and survival. Response testing on patient-derived organoids (PDOs) is a promising biomarker for treatment efficacy. The aim of this study is to optimize PDO drug screening methods for correlation with patient response and explore the potential to predict responses to standard chemotherapies.

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Background: Chronic spontaneous urticaria (CSU) is unpredictable and can severely impair patients' quality of life. Patients with CSU need a convenient, user-friendly platform to complete patient-reported outcome measures (PROMs) on their mobile devices. CRUSE , the Chronic Urticaria Self Evaluation app, aims to address this unmet need.

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  • The study investigates the impact of psoriasis on patients' work and daily life activities as they start using biological treatments.
  • Data from 194 patients showed that after beginning treatment, disease activity significantly decreased, yet work participation remained lower than the general population.
  • Although employed patients exhibited improved productivity, nearly half still faced challenges in daily activities, with no significant changes observed over time.
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Background: Keloids and hypertrophic scars can cause severe pain, pruritus, and psychological distress. Conventional intralesional corticosteroid treatment with needle injections remains challenging, especially in children with needle phobia.

Objective: We aimed to evaluate the effectiveness, tolerability, and patient satisfaction of intralesional treatment with triamcinolone acetonide using a needle-free electronic pneumatic jet injector in children with keloids and hypertrophic scars.

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Background: To address the growing prevalence of youth mental health problems, early intervention is crucial to minimize individual, societal, and economic impacts. Indicative prevention aims to target emerging mental health complaints before the onset of a full-blown disorder. When intervening at this early stage, individuals are more responsive to treatment, resulting in cost-effective outcomes.

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  • The study investigates how combining methotrexate with adalimumab treatment affects drug concentration and response in psoriasis patients.
  • A population PK-PD model was created from data collected over 49 weeks from 59 patients, revealing that methotrexate cotreatment reduces the development of antidrug antibodies, which can enhance the effectiveness of adalimumab.
  • Overall, the findings suggest that using methotrexate alongside adalimumab can lead to better treatment outcomes by increasing adalimumab levels and potentially improving clinical responses.
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Seborrheic dermatitis (SD) is a chronic inflammatory skin disease characterized by erythematous papulosquamous lesions in sebum rich areas such as the face and scalp. Its pathogenesis appears multifactorial with a disbalanced immune system, Malassezia driven microbial involvement and skin barrier perturbations. Microbial involvement has been well described in SD, but skin barrier involvement remains to be properly elucidated.

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Objectives: The treatment of recalcitrant keloids is challenging. Although intralesional bleomycin using conventional needle injectors (CNI) is effective, it has important drawbacks, such as the need for repetitive and painful injections. Therefore, we aimed to evaluate the effectiveness, tolerability and patient satisfaction of intralesional bleomycin with lidocaine administered with a needle-free electronically-controlled pneumatic jet-injector (EPI) in recalcitrant keloids.

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