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1.
J Phys Chem A ; 128(7): 1241-1249, 2024 Feb 22.
Artículo en Inglés | MEDLINE | ID: mdl-38324399

RESUMEN

The recent implementation of attosecond and few-femtosecond X-ray pump/X-ray probe schemes in large-scale free-electron laser facilities has opened the way to visualize fast nuclear dynamics in molecules with unprecedented temporal and spatial resolution. Here, we present the results of theoretical calculations showing how polarization-averaged molecular-frame photoelectron angular distributions (PA-MFPADs) can be used to visualize the dynamics of hydrogen migration in methanol, ethanol, propanol, and isopropyl alcohol dications generated by X-ray irradiation of the corresponding neutral species. We show that changes in the PA-MFPADs with the pump-probe delay as a result of intramolecular photoelectron diffraction carry information on the dynamics of hydrogen migration in real space. Although visualization of this dynamics is more straightforward in the smaller systems, methanol and ethanol, one can still recognize the signature of that motion in propanol and isopropyl alcohol and assign a tentative path to it. A possible pathway for a corresponding experiment requires an angularly resolved detection of photoelectrons in coincidence with molecular fragment ions used to define a molecular frame of reference. Such studies have become, in principle, possible since the first XFELs with sufficiently high repetition rates have emerged. To further support our findings, we provide experimental evidence of H migration in ethanol-OD from ion-ion coincidence measurements performed with synchrotron radiation.

2.
Diabet Med ; 37(10): 1737-1741, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-31943340

RESUMEN

AIM: To investigate the association between anxiety symptoms and the progression from prediabetes to type 2 diabetes. METHODS: A sample of 1708 participants aged 31-82 years from the population-based Cooperative Health Research in the Region of Augsburg F4 and the follow-up Cooperative Health Research in the Region of Augsburg FF4 studies was included. Prediabetes was defined as impaired fasting glucose and/or impaired glucose tolerance, and anxiety status was measured by the generalized anxiety disorder-7 questionnaire. Newly diagnosed type 2 diabetes cases were identified after 6.5 years (11 102 person-years) and confirmed by medical records. Multivariate logistic regression analyses were employed to estimate the effect of prediabetes and anxiety on the incidence of type 2 diabetes with different levels of adjustments for potential confounders. The population attributable risk of type 2 diabetes in participants with prediabetes and anxiety was estimated. RESULTS: Prediabetes at baseline was prevalent in 247 participants, of whom 77 developed diabetes after follow-up, accounting for a progression rate of 31%. In participants with prediabetes, high anxiety was associated with a 3-fold increased risk of progression to type 2 diabetes in comparison with low anxiety, even after accounting for socio-demographic, lifestyle and metabolic risk factors (OR = 2.82, 95% CI = 0.95-8.37, P = 0.06). A significant proportion of incident type 2 diabetes was attributed to having anxiety in addition to prediabetes (attributable risk proportion: 0.52; 95% CI = 0.004-1.04, P = 0.05). CONCLUSIONS: Anxiety symptoms independently increase the progression risk of prediabetes to type 2 diabetes and should be routinely considered alongside the traditional risk factors in people with prediabetes.


Asunto(s)
Ansiedad/epidemiología , Diabetes Mellitus Tipo 2/epidemiología , Estado Prediabético/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Ansiedad/psicología , Diabetes Mellitus Tipo 2/psicología , Progresión de la Enfermedad , Femenino , Alemania , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estado Prediabético/psicología
3.
Internist (Berl) ; 60(6): 638-643, 2019 Jun.
Artículo en Alemán | MEDLINE | ID: mdl-31076796

RESUMEN

People with rare diseases have a very high rate of mental and social stress. This results in specific tasks and problems in the psychosomatic care of patients. On the one hand, the physical and/or psychological symptoms of an undetected rare organic disease can be misdiagnosed as a psychosomatic disease, and the affected persons possibly receive psychotherapy that is not causally effective. On the other hand, mental diseases that require treatment can arise as a result of the effects of a rare disease. These should be diagnosed as such and treated with psychotherapy. If, in individual cases, both symptoms of a rare disease and symptoms of a psychosomatic disorder in the sense of comorbidity are present, neither one nor the other diagnosis should lead to a hasty termination of diagnostic efforts. Otherwise, misalignments can easily occur and the further diagnostic and therapeutic process can be permanently disturbed. Interdisciplinary team care interventions should therefore be developed further.


Asunto(s)
Trastornos Psicofisiológicos , Medicina Psicosomática , Enfermedades Raras , Estrés Psicológico/complicaciones , Humanos , Trastornos Mentales/terapia , Grupo de Atención al Paciente , Trastornos Psicofisiológicos/clasificación , Trastornos Psicofisiológicos/diagnóstico , Trastornos Psicofisiológicos/terapia , Psicoterapia , Psicotrópicos/uso terapéutico , Enfermedades Raras/diagnóstico , Enfermedades Raras/terapia
4.
Mol Pharm ; 15(1): 31-39, 2018 01 02.
Artículo en Inglés | MEDLINE | ID: mdl-28926716

RESUMEN

The ability of broadband acoustic resonance dissolution spectroscopy (BARDS) to assess the wettability of powder blends is investigated. BARDS is a novel analytical technology developed on the basis of the change in acoustic phenomena observed when material is added into a solvent under resonance. Addition of solid material to the solvent results in the introduction of gas (air) into the solvent, changing the compressibility of the solvent system, and reducing the velocity of sound in the solvent. As a material is wetted and dissolved, the gas is released from the solvent and resonance frequency is altered. The main purpose of this work is to demonstrate the ability of BARDS to assess differences in the wetting behavior of tablet excipients (microcrystalline cellulose (MCC) and magnesium stearate (MgSt)) and a model drug (metoclopramide hydrochloride) as single component powders and multicomponent powder blends. BARDS acoustic responses showed a prolonged release of gas for the powdered blends with lubricant compared to unlubricated blends. As the elimination of gas from the solvent was assumed to follow first order elimination kinetics, a compressible gas elimination rate constant was calculated from the log plots of the gas volume profiles. The gas elimination rate constant was used as a parameter to compare the release of gas from the powder introduced to the solvent and hence the powder wetting behavior. A lower gas elimination rate constant was measured for lubricated blends compared to nonlubricated blends, suggesting the prolonged hydration of lubricated blends. Standard wetting techniques such as contact angle measurements and wetting time analysis were also used to analyze the blends and confirmed differences in wetting behavior determined by BARDS. The study results demonstrate the capability of BARDS as a rapid, analytical tool to determine the wetting behavior of the pharmaceutical powder blends and the potential of BARDS as a process analytical technology (PAT) tool.


Asunto(s)
Polvos/química , Análisis Espectral/métodos , Ácidos Esteáricos/química , Humectabilidad
5.
Persoonia ; 41: 175-201, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30728604

RESUMEN

Plant pathogenic smut fungi in the broader sense can be divided into the Ustilaginomycetes, which cause classical smut symptoms with masses of blackish spores being produced in a variety of angiosperms, and the Exobasidiomycetes, which are often less conspicuous, as many do not shed large amounts of blackish spores. The leaf-spot causing members of the genus Entyloma (Entylomatales, Exobasidiomycetes) belong to the latter group. Currently, 172 species that all infect eudicots are included in the genus. Vánky (2012) recognised five Entyloma species on species of Ranunculus s.lat. Two have been reported only from Ficaria verna s.lat., while three, E. microsporum, E. ranunculi-repentis, E. verruculosum, have been reported to have a broad host range, encompassing 30, 26, and 5 species of Ranunculus, respectively. This broad host range is in contrast to the generally high host specificity assumed for species of Entyloma, indicating that they may represent complexes of specialised species. The aim of this study was to investigate Entyloma on Ranunculus s.lat. using multigene phylogenies and morphological comparisons. Phylogenetic analyses on the basis of up to four loci (ITS, atp2, ssc1, and map) showed a clustering of Entyloma specimens according to host species. For some of these Entyloma lineages, names not currently in use were available and reinstated. In addition, Entyloma microsporum s.str. is neotypified. Six novel species are described in this study, namely, Entyloma jolantae on Ranunculus oreophilus, E. klenkei on R. marginatus, E. kochmanii on R. lanuginosus, E. piepenbringiae on R. polyanthemos subsp. nemorosus (type host) and R. repens, E. savchenkoi on R. paludosus, and E. thielii on R. montanus. For all species diagnostic bases and morphological characteristics are provided. The results in this study once more highlight the importance of detailed re-investigation of broad host-range pathogens of otherwise specialised plant pathogen groups.

6.
Psychol Med ; 47(3): 553-564, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27804900

RESUMEN

BACKGROUND: Mental health morbidity in post-conflict settings is high. Nevertheless, randomized controlled trials of psychotherapy on site are rare. Our aim was to integrate rigorous research procedures into a humanitarian programme and test the efficacy of resource activation (ROTATE) in treating post-traumatic stress disorder (PTSD), co-morbid symptoms and impaired functioning in Cambodia. METHOD: A total of 86 out-patients with PTSD were randomly assigned to five sessions of ROTATE (n = 53) or a 5-week waiting-list control (WLC) condition (n = 33). Treatment was provided by six Cambodian psychologists who had received extensive training in ROTATE. Masked assessments were made before and after therapy. RESULTS: PTSD remission rates according to the DSM-IV algorithm of the Harvard Trauma Questionnaire were 95.9% in ROTATE and 24.1% in the WLC condition. Thus, patients receiving ROTATE had a significantly higher likelihood of PTSD remission (odds ratio 0.012, 95% confidence interval 0.002-0.071, p < 0.00001). Additionally, levels of anxiety, depression and impaired functioning were significantly reduced compared with the WLC condition (p < 0.00001, between-group effect sizes d = 2.41, 2.26 and 2.54, respectively). No harms were reported. CONCLUSIONS: ROTATE was efficacious in treating Cambodian patients with high symptom levels of PTSD, emotional distress and impaired functioning. ROTATE is a brief, culturally adaptable intervention focusing on stabilization and strengthening resources rather than trauma confrontation. It can be taught to local professionals and paraprofessionals and enhance access to mental health care for patients in need.


Asunto(s)
Ansiedad/terapia , Depresión/terapia , Evaluación de Resultado en la Atención de Salud , Psicoterapia/métodos , Trastornos por Estrés Postraumático/terapia , Adulto , Ansiedad/epidemiología , Cambodia , Comorbilidad , Depresión/epidemiología , Femenino , Humanos , Masculino , Psicoterapia Breve/métodos , Inducción de Remisión , Trastornos por Estrés Postraumático/epidemiología
7.
BMC Public Health ; 17(1): 379, 2017 05 02.
Artículo en Inglés | MEDLINE | ID: mdl-28464880

RESUMEN

BACKGROUND: The role of an individual's social network satisfaction (SNS) in the association of social isolation or living alone and incident type 2 diabetes (T2D) is unclear. We assessed the association of SNS with incident T2D and analysed potential modifications of the SNS-T2D association by social isolation or living alone. METHODS: The study population (N = 6839 aged 25-74 years without diabetes at baseline) derived from the prospective population-based MONICA/KORA study (1989-2009). Social network satisfaction was assessed by a single item. Cox regression was used to estimate hazard ratios (HR) for SNS separately in men and women. RESULTS: In men with low SNS, risk for incident T2D increased significantly (HR: 2.15, 95% CI: 1.33-3.48, p value 0.002). After additional adjustments for social isolation or living alone, the risk for incident T2D was still significant, albeit less pronounced (HRs 1.85 or 2.05, p values 0.001 or 0.004). The interaction analysis showed an increased T2D risk effect for low SNS compared to high SNS in women living in a partnership (HR: 2.11, 95% CI: 1.00-4.44, p value for interaction: 0.047) and for moderate SNS compared to high SNS in socially connected women (1.56, 1.01-2.39, 0.010). CONCLUSIONS: Further research is needed to address the complexities of the perception of social relationships and social interactions, or interdependence, especially when another major public health issue such as T2D is concerned.


Asunto(s)
Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/psicología , Apoyo Social , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción Personal , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Factores de Riesgo , Factores Sexuales
8.
Diabet Med ; 33(1): 47-54, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26331457

RESUMEN

AIMS: Several psychosocial factors have been shown to increase the risk of Type 2 diabetes mellitus. This study investigated the association between structural social support and incidence of Type 2 diabetes mellitus in men and women. METHODS: Data were derived from three population-based MONICA/KORA surveys conducted in 1984-1995 in the Augsburg region (southern Germany) and followed up by 2009. The study population comprised 8952 participants (4669 men/4283 women) aged 30-74 years without diabetes at baseline. Structural social support was assessed using the Social Network Index. Sex-specific hazard ratios were estimated from Cox proportional hazard models. RESULTS: Within follow-up, 904 incident Type 2 diabetes mellitus cases (558 men, 346 women) were observed. Crude incidence rates for Type 2 diabetes mellitus per 10 000 person-years were substantially higher in poor compared with good structural social support (men: 94 vs. 69, women: 58 vs. 43). After adjustment for age, survey, parental history of diabetes, smoking status, alcohol intake, physical activity, hypertension, dyslipidaemia, BMI, education, sleep complaints and depressed mood, risk of Type 2 diabetes mellitus for participants with poor compared with good structural social support was 1.31 [95% confidence interval (CI) = 1.11-1.55] in men and 1.10 (95% CI = 0.88-1.37) in women. Stratified analyses revealed a hazard ratio of 1.50 (95% CI = 1.23-1.83) in men with a low level of education and 0.87 (95% CI = 0.62-1.22) in men with a high level of education (P for interaction: 0.0082). CONCLUSIONS: Poor structural social support is associated with Type 2 diabetes mellitus in men. This association is independent of risk factors at baseline and is particularly pronounced in men with a low level of education.


Asunto(s)
Diabetes Mellitus Tipo 2/etiología , Medio Social , Estrés Psicológico/fisiopatología , Adulto , Anciano , Estudios de Cohortes , Estudios Transversales , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/psicología , Escolaridad , Femenino , Estudios de Seguimiento , Alemania/epidemiología , Encuestas Epidemiológicas , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Prospectivos , Factores de Riesgo , Factores Sexuales , Apoyo Social , Estrés Psicológico/etiología , Estrés Psicológico/psicología , Análisis de Supervivencia
9.
Analyst ; 139(5): 1000-6, 2014 Mar 07.
Artículo en Inglés | MEDLINE | ID: mdl-24443717

RESUMEN

There is an increased trend towards the use of drug and enteric coated sugar spheres for controlled oral delivery of active pharmaceutical ingredients (API). This trend is driven by increased efficacy and ease of formulation of different dosage levels. However, difficulties exist in determining the thickness of drug and enteric coatings in a time efficient manner during manufacture, quality assurance and stability testing. The thickness of the coating determines the dosage of the API and the thickness of the enteric coating determines the release rate of the drug in the gastro-intestinal tract. Broadband Acoustic Resonance Dissolution Spectroscopy (BARDS) offers a rapid new approach to characterising the enteric coating thickness and the raw materials used in their manufacture. BARDS applications are based on reproducible changes in the compressibility of a solvent during dissolution which is monitored acoustically due to associated changes in the speed of sound in solution. It is demonstrated how core delivery sugar spheres have unique acoustic spectra attributable to the mean size distribution of the spheres. A steady state acoustic lag time is associated with the disintegration of the enteric coating, in basic solution. This lag time can be manipulated by varying the concentration of the base which affects the rate at which the coating dissolves. It is anticipated that the thickness/loading of the spheres can be estimated from the lag time.


Asunto(s)
Acústica , Sistemas de Liberación de Medicamentos/métodos , Espectrometría de Masas/métodos , Comprimidos Recubiertos/análisis , Factores de Tiempo
10.
Rev Sci Instrum ; 95(7)2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38958512

RESUMEN

At present, the best optical lattice clocks are based on the spectroscopy of trapped alkaline-earth-like atoms such as ytterbium and strontium. The development of mobile or even space-borne clocks necessitates concepts for the compact laser-cooling and trapping of these atoms with reduced laser requirements. Here, we present two compact and robust achromatic mirror structures for single-beam magneto-optical trapping of alkaline-earth-like atoms using two widely separated optical cooling frequencies. We have compared the trapping and cooling performance of a monolithic aluminum structure that generates a conventional trap geometry to a quasi-planar platform based on a periodic mirror structure for different isotopes of Yb. Compared to prior work with strontium in non-conventional traps, where only bosons were trapped on a narrow line transition, we demonstrate two-stage cooling and trapping of a fermionic alkaline-earth-like isotope in a single-beam quasi-planar structure.

11.
Med Klin Intensivmed Notfmed ; 119(5): 346-351, 2024 Jun.
Artículo en Alemán | MEDLINE | ID: mdl-38568446

RESUMEN

The use of extracorporeal circulatory support, both for cardiogenic shock and during resuscitation, still presents many unanswered questions. The inclusion and exclusion criteria for such a resource-intensive treatment must be clearly defined, considering that these criteria are directly associated with the type and location of treatment. For example, it is worth questioning the viability of an extracorporeal resuscitation program in areas where it is impossible to achieve low-flow times under 60 min due to local limitations. Additionally, the best approach for further treatment, including whether it is necessary to regularly relieve the left ventricle, must be explored. To find answers to some of these questions, large-scale, multicenter, randomized studies and registers must be performed. Until then this treatment must be carefully considered before use.


Asunto(s)
Oxigenación por Membrana Extracorpórea , Choque Cardiogénico , Humanos , Choque Cardiogénico/terapia , Choque Cardiogénico/mortalidad , Oxigenación por Membrana Extracorpórea/métodos , Selección de Paciente , Alemania , Resucitación/métodos , Ensayos Clínicos Controlados Aleatorios como Asunto
12.
Eur J Psychotraumatol ; 15(1): 2333221, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38577992

RESUMEN

Background: Complex post-traumatic stress disorder (CPTSD) describes chronic disturbances in self-organization (i.e. affect dysregulation; negative self-concept; severe difficulties in relationships) which are frequently observed in survivors of prolonged, repeated or multiple traumatic stressors. So far, evidence of psychodynamic treatment approaches for CPTSD is scarce.Methods: In this single-centre observational pilot study, symptom change during a 6-week psychodynamic inpatient treatment in a multimodal psychosomatic rehabilitation centre was evaluated using repeated measures analyses of variance (ANOVAs). Patients completed questionnaires on PTSD and CPTSD symptoms (ITQ), anxiety, depression and somatization (BSI-18), functional impairment (WHODAS) and epistemic trust, mistrust and credulity (ETMCQ) before (T1) and at the end of treatment (T2). A hierarchical linear regression analysis was calculated to identify factors associated with improved CPTSD symptoms.Results: A total of n = 50 patients with CPTSD were included in the study, of whom n = 40 (80%) completed treatment. Patients reported a significant reduction of CPTSD symptoms during treatment with a large effect size (-3.9 points; p < .001; η2 = .36), as well as a significant reduction of psychological distress (p < .001; η2 = .55) and functional impairment (p < .001; η2 = .59). At the end of treatment, 41.0% of patients no longer fulfilled the diagnostic criteria for CPTSD. Changes in epistemic stance included improved epistemic trust (ß = -.34, p = .026) and decreased epistemic credulity (ß = .37, p = .017), which together with lower age (ß = .43, p = .012) and lower depression levels at baseline (ß = .35, p = .054) were significantly associated with baseline adjusted mean change of CPTSD symptoms during therapy and explained 48% of its variance.Discussion: In our study, patients reported a significant reduction of CPTSD symptoms and comorbid symptoms during a multimodal psychodynamic inpatient rehabilitation treatment. Improved epistemic trust may facilitate the establishment of a trusting therapeutic relationship, thus fostering an environment of openness for knowledge transfer (i.e. social learning) and the exploration of diverse viewpoints and perspectives in the therapeutic process.


Complex post-traumatic stress disorder (CPTSD) is a condition often found in individuals who have experienced severe trauma, such as childhood abuse or torture.A study involving 50 patients with CPTSD showed significant improvements in symptoms and overall quality of life after undergoing a 6-week integrative multimodal psychodynamic inpatient rehabilitation treatment.The study also highlighted that improvement in epistemic trust could be a potential mechanism of change contributing to the positive therapeutic outcomes.


Asunto(s)
Trastornos por Estrés Postraumático , Humanos , Trastornos por Estrés Postraumático/psicología , Proyectos Piloto , Pacientes Internos , Psicoterapia , Encuestas y Cuestionarios
13.
Diabet Med ; 30(1): 65-9, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22672118

RESUMEN

AIMS: Cross-sectional studies have consistently reported evidence for an association between diabetes and depressive disorders. However, only limited prospective studies have examined this association, reporting conflicting results. In a population-based cohort study, we compared cumulative incidences of diabetes between participants with and without high depressive symptoms. METHOD: We analysed the 5-year follow-up data from the German Heinz Nixdorf Recall study of 3547 participants without diabetes at baseline [mean age 58.8 (sd 7.6) years, 47.5% male]. Depressive symptoms were defined using the Centre for Epidemiologic Studies Depression scale (cut point ≥ 17). Diabetes (diagnosed or previously undetected) was identified by self-reported physician-diagnosed diabetes, medication and high blood glucose levels. We estimated 5-year cumulative incidences with 95% confidence intervals and fitted multiple logistic regression models to calculate the odds ratios, adjusted for age, sex, physical activity, smoking, living with or without partner, and educational level. RESULTS: The cumulative incidence of diabetes was 9.2% (95% CI 6.3-12.8) in participants with high depressive symptoms at baseline and 9.0% (95% CI 8.0-10.0) in participants without these symptoms. The age- and sex-adjusted odds ratio of diabetes in participants with depressive symptoms compared with those without was 1.13 [95% CI 0.77-1.68; fully adjusted 1.11 (95% CI 0.74-1.65)]. These results did not substantially change in several additional sensitivity analyses. CONCLUSION: Our study did not show a significantly increased risk of developing diabetes in individuals with high depressive symptoms compared with those without high depressive symptoms during a 5-year follow-up period.


Asunto(s)
Trastorno Depresivo/epidemiología , Diabetes Mellitus/epidemiología , Anciano , Diabetes Mellitus/psicología , Femenino , Estudios de Seguimiento , Alemania/epidemiología , Humanos , Incidencia , Masculino , Persona de Mediana Edad
14.
Int J Colorectal Dis ; 28(10): 1337-49, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23657400

RESUMEN

PURPOSE: Tumour-associated macrophages have been shown to promote proliferation, angiogenesis and metastasis in several carcinomas. The effect on colon cancer has not yet been clarified. Furthermore, Kupffer cells in the liver might initiate the formation of metastases by directly binding tumour cells. METHODS: An orthotopic syngeneic mouse model of colon cancer as well as a liver metastases model has been studied, using murine CT-26 colon cancer cells in Balb/c-mice. Macrophages were depleted in both models by clodronate liposomes. Tumour sizes and metastases were determined using 7-Tesla MRI. The macrophage and vascular density in the orthotopic tumours as well as the Kupffer cell density in the livers were evaluated using immunohistochemistry. RESULTS: Animals in the macrophage-depleted group displayed significantly smaller primary tumours (37 ± 20 mm(3)) compared to the control group (683 ± 389 mm(3), p = 0.0072). None of the mice in the depleted group showed liver or peritoneal metastases, whereas four of six control mice displayed liver and five out of six mice peritoneal metastases. The vascular density was significantly lower in the macrophage-depleted group (p = 0.0043). In the liver metastases model, animals of the Kupffer cell-depleted group (14.3 ± 7.7) showed significantly less liver metastases than mice of the two control groups (PBS liposomes, 118.5 ± 28.2, p = 0.0117; NaCl, 81.7 ± 23.2, p = 0.0266). The number of liver metastases correlated directly with the Kupffer cell density (p = 0.0221). CONCLUSION: Macrophages promote tumour growth, angiogenesis and metastases in this orthotopic syngeneic mouse model. Kupffer cells enhance the formation of metastases in the liver.


Asunto(s)
Neoplasias del Colon/patología , Neoplasias Hepáticas/secundario , Macrófagos/patología , Trasplante de Neoplasias , Animales , Recuento de Células , Muerte Celular , Línea Celular Tumoral , Proliferación Celular , Neoplasias del Colon/irrigación sanguínea , Modelos Animales de Enfermedad , Macrófagos del Hígado/patología , Neoplasias Hepáticas/patología , Imagen por Resonancia Magnética , Masculino , Ratones , Ratones Endogámicos BALB C
15.
Pharmazie ; 68(2): 93-9, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23469680

RESUMEN

In this paper we propose the use of lactic acid oligomers (OLAs) as prodrug moieties. Two synthetic approaches are presented, on the one hand a non selective oligomerisation of lactic acid and on the other hand a block synthesis to tetramers of lactic acid. Dimers of lactic acid were investigated with respect to their plasma stability and their adsorption to albumine. Ibuprofen was chosen as the first drug for OLAylation. The ester 19 of LA(1)-ibuprofen was evaluated with respect to the degradation to human plasma and the adsorption to albumine. All results indicate that lactic acid oligomers are promising prodrug moieties.


Asunto(s)
Ácido Láctico/química , Profármacos/química , Antiinflamatorios no Esteroideos/administración & dosificación , Antiinflamatorios no Esteroideos/sangre , Antiinflamatorios no Esteroideos/química , Proteínas Sanguíneas/metabolismo , Tampones (Química) , Cromatografía Líquida de Alta Presión , Electroforesis Capilar , Humanos , Ibuprofeno/administración & dosificación , Ibuprofeno/sangre , Ibuprofeno/química , Indicadores y Reactivos , Isomerismo , Polietilenglicoles/química , Unión Proteica
16.
Z Gerontol Geriatr ; 46(1): 35-47, 2013 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-22618706

RESUMEN

BACKGROUND: Certain drugs are classified as potentially inappropriate medications (PIM) for the elderly. In 2010, the PRISCUS list was published, specifically designed for its applicability in the German pharmaceutical market. The aim of this study was to evaluate the PRISCUS list compared to international PIM lists. METHODS: Based on selected PIM lists (PRISCUS, STOPP/START, Beers), the medications of 308 patients at a clinic of geriatric rehabilitation were screened for PIMs. Applying START criteria, omission of indicated drug therapies was detected. RESULTS: Regarding the rate of PIM detection, the PRISCUS list was less sensitive than the application of STOPP criteria. While hospitalized, the mean number of administered PIMs per patient was 1.2 based on STOPP criteria and 0.5 based on the PRISCUS list. The lowest number of PIMs per patient was detected by applying the Beers list (0.4 PIMs). CONCLUSION: The Beers list should not be used in the German pharmaceutical market. The amendment of diagnosis-related STOPP criteria to the PRISCUS list would be useful to significantly advance therapeutic success and drug safety in the elderly.


Asunto(s)
Adhesión a Directriz/estadística & datos numéricos , Prescripción Inadecuada/prevención & control , Prescripción Inadecuada/estadística & datos numéricos , Prescripciones/estadística & datos numéricos , Prescripciones/normas , Anciano , Anciano de 80 o más Años , Femenino , Alemania/epidemiología , Servicios de Salud para Ancianos/normas , Humanos , Masculino
17.
Cardiovasc Intervent Radiol ; 46(1): 35-42, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36175655

RESUMEN

OBJECTIVES: This retrospective cohort study investigates outcomes of patients with intermediate-high and high-risk pulmonary embolism (PE) who were treated with transfemoral mechanical thrombectomy (MT) using the large-bore Inari FlowTriever aspiration catheter system. MATERIAL AND METHODS: Twenty-seven patients (mean age 56.1 ± 15.3 years) treated with MT for PE between 04/2021 and 11/2021 were reviewed. Risk stratification was performed according to European Society of Cardiology (ESC) guidelines. Clinical and hemodynamic characteristics before and after the procedure were compared with the paired Student's t test, and duration of hospital stay was analyzed with the Kaplan-Meier estimator. Procedure-related adverse advents were assessed. RESULTS: Of 27 patients treated, 18 were classified as high risk. Mean right-to-left ventricular ratio on baseline CT was 1.7 ± 0.6. After MT, a statistically significant reduction in mean pulmonary artery pressures from 35.9 ± 9.6 to 26.1 ± 9.0 mmHg (p = 0.002) and heart rates from 109.4 ± 22.5 to 82.8 ± 13.8 beats per minute (p < 0.001) was achieved. Two patients died of prolonged cardiogenic shock. Three patients died of post-interventional complications of which a paradoxical embolism can be considered related to MT. One patient needed short cardiopulmonary resuscitation during the procedure due to clot displacement. Patients with PE as primary driver of clinical instability had a median intensive care unit (ICU) stay of 2 days (0.5-3.5 days). Patients who developed PE as a complication of an underlying medical condition spent 11 days (9.5-12.5 days) in the ICU. CONCLUSION: In this small study population of predominantly high-risk PE patients, large-bore MT without adjunctive thrombolysis was feasible with an acceptable procedure-related complication rate.


Asunto(s)
Embolia Pulmonar , Trombosis , Humanos , Adulto , Persona de Mediana Edad , Anciano , Estudios Retrospectivos , Resultado del Tratamiento , Trombectomía/métodos , Embolia Pulmonar/diagnóstico por imagen , Embolia Pulmonar/terapia , Embolia Pulmonar/etiología , Trombosis/etiología , Terapia Trombolítica/métodos
18.
Fungal Syst Evol ; 11: 109-156, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38545457

RESUMEN

Three new genera, six new species, three combinations, six epitypes, and 25 interesting new host and / or geographical records are introduced in this study. New genera: Neoleptodontidium (based on Neoleptodontidium aquaticum), and Nothoramularia (based on Nothoramularia ragnhildianicola). New species: Acremonium aquaticum (from cooling pad water, USA, Cladophialophora laricicola (on dead wood of Larix sp., Netherlands), Cyphellophora neerlandica (on lichen on brick wall, Netherlands), Geonectria muralis (on moss growing on a wall, Netherlands), Harposporium illinoisense (from rockwool, USA), and Neoleptodontidium aquaticum (from hydroponic water, USA). New combinations: Cyphellophora deltoidea (based on Anthopsis deltoidea), Neoleptodontidium aciculare (based on Leptodontidium aciculare), and Nothoramularia ragnhildianicola (based on Ramularia ragnhildianicola). Epitypes: Cephaliophora tropica (from water, USA), Miricatena prunicola (on leaves of Prunus serotina, Netherlands), Nothoramularia ragnhildianicola (on Ragnhildiana ferruginea, parasitic on Artemisia vulgaris, Germany), Phyllosticta multicorniculata (on needles of Abietis balsamea, Canada), Thyronectria caraganae (on twigs of Caragana arborescens, Ukraine), and Trichosphaeria pilosa (on decayed Salix branch, Netherlands). Furthermore, the higher order phylogeny of three genera regarded as incertae sedis is resolved, namely Cephaliophora (Ascodesmidaceae, Pezizales), Miricatena (Helotiales, Leotiomycetes), and Trichosphaeria (Trichosphaeriaceae, Trichosphaeriales), with Trichosphaeriaceae being an older name for Plectosphaerellaceae. Citation: Crous PW, Akulov A, Balashov S, Boers J, Braun U, Castillo J, Delgado MA, Denman S, Erhard A, Gusella G, Jurjevic Z, Kruse J, Malloch DW, Osieck ER, Polizzi G, Schumacher RK, Slootweg E, Starink-Willemse M, van Iperen AL, Verkley GJM, Groenewald JZ (2023). New and Interesting Fungi. 6. Fungal Systematics and Evolution 11: 109-156. doi: 10.3114/fuse.2023.11.09.

19.
Resuscitation ; 192: 109989, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37805061

RESUMEN

BACKGROUND: A multidisciplinary group of stakeholders were used to identify: (1) the core competencies of a training program required to perform in-hospital ECPR initiation (2) additional competencies required to perform pre-hospital ECPR initiation and; (3) the optimal training method and maintenance protocol for delivering an ECPR program. METHODS: A modified Delphi process was undertaken utilising two web based survey rounds and one virtual meeting. Experts rated the importance of different aspects of ECPR training, competency and governance on a 9-point Likert scale. A diverse, representative group was targeted. Consensus was achieved when greater than 70% respondents rated a domain as critical (> or = 7 on the 9 point Likert scale). RESULTS: 35 international ECPR experts from 9 countries formed the expert panel, with a median number of 14 years of ECMO practice (interquartile range 11-38). Participant response rates were 97% (survey round one), 63% (virtual meeting) and 100% (survey round two). After the second round of the survey, 47 consensus statements were formed outlining a core set of competencies required for ECPR provision. We identified key elements required to safely train and perform ECPR including skill pre-requisites, surrogate skill identification, the importance of competency-based assessment over volume of practice and competency requirements for successful ECPR practice and skill maintenance. CONCLUSIONS: We present a series of core competencies, training requirements and ongoing governance protocols to guide safe ECPR implementation. These findings can be used to develop training syllabus and guide minimum standards for competency as the growth of ECPR practitioners continues.


Asunto(s)
Reanimación Cardiopulmonar , Oxigenación por Membrana Extracorpórea , Humanos , Técnica Delphi , Oxigenación por Membrana Extracorpórea/métodos , Reanimación Cardiopulmonar/métodos , Acreditación , Estudios Retrospectivos
20.
Br J Psychiatry ; 200(1): 60-7, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22075651

RESUMEN

BACKGROUND: Multisomatoform disorder is characterised by severe and disabling bodily symptoms, and pain is one of the most common and impairing of these. Furthermore, these bodily symptoms cannot be explained by an underlying organic disorder. Patients with multisomatoform disorder are commonly found at all levels of healthcare and are typically difficult to treat for physicians as well as for mental health specialists. AIMS: To test whether brief psychodynamic interpersonal therapy (PIT) effectively improves the physical quality of life in patients who have had multisomatoform disorder for at least 2 years. METHOD: We recruited 211 patients (from six German academic outpatient centres) who met the criteria for multisomatoform disorder for a randomised, controlled, 12-week, parallelgroup trial from 1 July 2006 to 1 January 2009 (International Standard Randomised Controlled Trial Number ISRCTN23215121). We randomly assigned the patients to receive either 12 weekly sessions of PIT (n = 107) or three sessions of enhanced medical care (EMC, n = 104). The physical component summary of the Short Form Health Survey (SF-36) was the pre-specified primary outcome at a 9-month follow-up. RESULTS: Psychodynamic interpersonal therapy improved patients' physical quality of life at follow-up better than EMC (mean improvement in SF-36 score: PIT 5.3, EMC 2.2), with a small to medium between-group effect size (d = 0.42, 95% CI 0.15-0.69, P = 0.001). We also observed a significant improvement in somatisation but not in depression, health anxiety or healthcare utilisation. CONCLUSIONS: This trial documents the long-term efficacy of brief PIT for improving the physical quality of life in patients with multiple, difficult-to-treat, medically unexplained symptoms.


Asunto(s)
Evaluación de Resultado en la Atención de Salud/estadística & datos numéricos , Manejo del Dolor/métodos , Dolor/psicología , Atención Primaria de Salud/estadística & datos numéricos , Psicoterapia Breve/métodos , Trastornos Somatomorfos/terapia , Adolescente , Adulto , Anciano , Antidepresivos/uso terapéutico , Ansiedad , Actitud Frente a la Salud , Trastorno Depresivo Mayor/psicología , Trastorno Depresivo Mayor/terapia , Alemania , Humanos , Persona de Mediana Edad , Dolor/etiología , Calidad de Vida , Índice de Severidad de la Enfermedad , Trastornos Somatomorfos/psicología , Adulto Joven
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