Publications by authors named "Dahee Park"

The efficient hydrogenation of 1-butene is an industrially significant reaction for producing fuels and value-added chemicals. However, achieving high catalytic efficiency and stability remains challenging, particularly for cost-effective materials, such as Ni. In this study, we developed a porous Ni-coated Ni foam catalyst by electrostatic spray deposition to address these challenges.

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: The current classification of pulmonary hypertension (PH) distinguishes between pre-capillary (PAWP ≤ 15 mmHg) and post-capillary (PAWP > 15 mmHg) forms, with left heart disease, especially heart failure with preserved ejection fraction (HFpEF), being a common cause of PH. We investigated the suitability of an HFpEF diagnosis instead of PAWP in diagnosing PH associated with HFpEF. : In a retrospective, single-center analysis, we reviewed diagnoses from our database, focusing on patients initially diagnosed with idiopathic pulmonary arterial hypertension (IPAH) or PH associated with HFpEF (PH-HFpEF) based on their PAWP.

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Article Synopsis
  • Recent studies propose a specific phenotype of idiopathic pulmonary arterial hypertension (IPAH) in smokers characterized by low carbon monoxide diffusion capacity without major emphysema.
  • The study recruited patients across four groups to investigate pulmonary capillary loss as a possible cause, utilizing advanced imaging techniques like CT and Xe MRI.
  • Results revealed significant reductions in specific imaging metrics in patients with IPAH and low diffusion capacity, supporting the hypothesis of pulmonary capillary loss and potential early emphysema changes.
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Introduction: Doppler-derived pulmonary pulse transit time (pPTT) is an auspicious hemodynamic marker in chronic pulmonary diseases. The aim is to compare four distinct pPTT measurements and its relation to right cardiac and pulmonary function.

Methods: Prospectively, 25 chronic obstructive pulmonary disease (COPD) patients (four patients excluded) and 32 healthy subjects underwent repeated distinct pPTT measurements, standard echocardiography, and pulmonary function testing on the same day.

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Article Synopsis
  • - Pulmonary vascular diseases like pulmonary embolism and pulmonary hypertension are often overlooked but are critical health issues, as highlighted in the European Respiratory Society International Congress 2023.
  • - The article discusses new treatments for pulmonary arterial hypertension, such as sotatercept and seralutinib, and advancements in understanding pulmonary hypertension linked to interstitial lung disease.
  • - It emphasizes the need for comprehensive care approaches, including not just medication but also exercise training and rehabilitation, and explores the intricate relationship between acute pulmonary embolism and chronic thromboembolic pulmonary hypertension (CTEPH).
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  • * Researchers compared lung tissue samples from children with ACD, adults with non-specific interstitial pneumonia, and healthy controls, using advanced techniques like transmission electron microscopy and transcriptome profiling.
  • * Findings revealed that in ACD, capillary basement membranes are abnormally thick and multilayered, while certain gene expressions related to vascular structure are altered, suggesting potential therapeutic targets to address these abnormalities.
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A sensitive and accurate analytical method was developed and validated to detect bambermycin, a commonly used antibiotic in animal feed and livestock. The presence of bambermycin residues in food products can pose health risks to consumers, emphasizing the need for a sensitive and accurate analytical method. A reversed-phase analytical column was utilized with a mobile phase comprising 0.

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Background: Among patients meeting diagnostic criteria for idiopathic pulmonary arterial hypertension (IPAH), there is an emerging lung phenotype characterised by a low diffusion capacity for carbon monoxide (DLCO) and a smoking history. The present study aimed at a detailed characterisation of these patients.

Methods: We analysed data from two European pulmonary hypertension registries, COMPERA (launched in 2007) and ASPIRE (from 2001 onwards), to identify patients diagnosed with IPAH and a lung phenotype defined by a DLCO of less than 45% predicted and a smoking history.

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Alveolar capillary dysplasia (ACD) is a rare lung developmental disorder leading to persistent pulmonary arterial hypertension and fatal outcomes in newborns. The current study analyzed the microvascular morphology and the underlying molecular background of ACD. One ACD group (n = 7), one pulmonary arterial hypertension group (n = 20), and one healthy con1trol group (n = 16) were generated.

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Background: The prevalence of mental disorders, particularly adjustment disorder (AD), major depressive disorder (MDD) and panic disorder (PD) is increased in patients with pulmonary arterial hypertension (PAH). However, it is unclear which pathogenic mechanisms determine their development and could therefore be targeted in prevention or therapeutic interventions. Here, we assessed metacognitions in a sample of PAH patients with and without MDD and PD.

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Background: Mental disorders are common among patients with severe cardiovascular diseases (CVD). Yet, there is a lack of easily accessible evidence-based treatments. Recent research indicates elevated prevalence of dysfunctional metacognitions in patients with mental disorders following cardiovascular events.

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Article Synopsis
  • Pulmonary hypertension (PH) is a serious lung condition that can lead to severe complications like right heart failure, and chronic thromboembolic pulmonary hypertension (CTEPH) is a specific type caused by blocked pulmonary arteries, with a notable prevalence of mental health issues in affected patients.
  • A study found that 31.8% of CTEPH patients had psychological disorders, with panic disorder and specific phobia being the most common, highlighting a significant difference in mental health between CTEPH patients and the general population.
  • Mental disorders negatively impact quality of life in CTEPH patients, and the Hospital Anxiety and Depression Scale (HADS) proved effective in identifying cases of depression and panic
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Introduction: Mental disorders are common in patients with pulmonary arterial hypertension (PAH) and contribute to impaired quality of life (QoL). The impact of mental disorders on access to health care, differences in clinical parameters and treatment in patients with PAH is unclear. In this study we sought to assess the impact of mental disorders and other health disparities on health-care-utilization in patients with PAH.

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Introduction: Chronic thromboembolic pulmonary hypertension (CTEPH) is a potentially life-threatening condition associated with high morbidity and mortality. However, advances in medical, surgical and interventional treatment have markedly improved the outcome of patients with CTEPH. Additional factors potentially influencing quality of life (QoL) and outcome in CTEPH are yet to be defined.

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Background/objective: Child maltreatment is associated with increased risk of psychological consequences, contributes to morbidity and has long lasting effects on mental health and quality of life. Child maltreatment has not been assessed in patients with pulmonary arterial hypertension (PAH). We examined the prevalence of child maltreatment and determined their impact on disease severity in patients with PAH.

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  • The study focuses on the impact of pulmonary arterial hypertension (PAH) on employment and work productivity in Germany, addressing a gap in research regarding social and economic factors related to the disease.
  • A survey of 212 PAH patients revealed a significant decline in employment from 48% at diagnosis to 29% during the study, with higher education and better walking capabilities (measured by 6MWD) being linked to higher employment chances.
  • The findings suggest that PAH leads to reduced employment rates and highlights the need for employment considerations as part of patient treatment goals.
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The accumulation of antimicrobial residues in edible animal products and aquaculture products could pose health concerns to unsuspecting consumers. Hence, this study aimed to develop a validated method for simultaneous quantification of chloramphenicol (CAP), thiamphenicol (TAP), florfenicol (FF), and florfenicol amine (FFA) in beef, pork, chicken, shrimp, eel, and flatfish using a quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Primary-secondary amine (PSA) and MgSO were used for sample purification.

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Background: Risk stratification plays an essential role in the management of patients with pulmonary arterial hypertension (PAH). The current European guidelines propose a three-stratum model to categorise risk as low, intermediate or high, based on the expected 1-year mortality. However, with this model, most patients are categorised as intermediate risk.

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Background: Since 2015, the European pulmonary hypertension guidelines recommend the use of combination therapy in most patients with pulmonary arterial hypertension (PAH). However, it is unclear to what extent this treatment strategy is adopted in clinical practice and if it is associated with improved long-term survival.

Methods: We analysed data from COMPERA, a large European pulmonary hypertension registry, to assess temporal trends in the use of combination therapy and survival of patients with newly diagnosed PAH between 2010 and 2019.

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Mental health may affect the quality of life (QoL) in patients with pulmonary arterial hypertension (PAH). However, mental disorders have not been systematically assessed in these patients. We examined the prevalence of mental disorders using structured interviews and determined their impact on QoL in patients with PAH.

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Methods: In this retrospective observational study, we analyzed all patients with pulmonary arterial hypertension undergoing LenusPro® pump implantation between November 2013 and October 2019 at our center. Periprocedural safety was assessed by describing all complications that occurred within 28 days after surgery; complications that occurred later were described to assess long-term safety. Clinical outcomes were measured by comparison of clinical parameters and echocardiographic measurements of right ventricular function from baseline to 6-months-follow-up.

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