Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 1.408
Filter
1.
Qual Life Res ; 2024 May 09.
Article in English | MEDLINE | ID: mdl-38724771

ABSTRACT

PURPOSE: This study aimed to develop a Japanese value set for the EORTC QLU-C10D, a multi-attribute utility measure derived from the cancer-specific health-related quality-of-life (HRQL) questionnaire, the EORTC QLQ-C30. The QLU-C10D contains ten HRQL dimensions: physical, role, social and emotional functioning, pain, fatigue, sleep, appetite, nausea, and bowel problems. METHODS: Quota sampling of a Japanese online panel was used to achieve representativeness of the Japanese general population by sex and age (≥ 18 years). The valuation method was an online discrete choice experiment. Each participant considered 16 choice pairs, randomly assigned from 960 choice pairs. Each pair included two QLU-C10D health states and life expectancy. Data were analyzed using conditional logistic regression, parameterized to fit the quality-adjusted life-year framework. Preference weights were calculated as the ratio of each dimension-level coefficient to the coefficient for life expectancy. RESULTS: A total of 2809 eligible panel members consented, 2662/2809 (95%) completed at least one choice pair, and 2435/2662 (91%) completed all choice pairs. Within dimensions, preference weights were generally monotonic. Physical functioning, role functioning, and pain were associated with the largest utility weights. Intermediate utility weights were associated with social functioning and nausea; the remaining symptoms and emotional functioning were associated with smaller utility decrements. The value of the worst health state was - 0.221, lower than that seen in most other existing QLU-C10D country-specific value sets. CONCLUSIONS: The Japan-specific QLU-C10D value set is suitable for evaluating the cost and utility of oncology treatments for Japanese health technology assessment and decision-making.

2.
ACS Chem Neurosci ; 15(8): 1619-1634, 2024 Apr 17.
Article in English | MEDLINE | ID: mdl-38573542

ABSTRACT

Acute myocardial infarction (AMI) is one of the leading causes of death worldwide and treatment costs pose a major burden on the global health care system. Despite the variety of treatment options, individual recovery can be still poor and the mortality rate, especially in the first few years after the event, remains high. Therefore, intense research is currently focused on identifying novel target molecules to improve the outcome following AMI. One of the potentially interesting targets is the serotonergic system (5-HT system), not at least because of its connection to mental disorders. It is known that patients suffering from AMI have an increased risk of developing depression and vice versa. This implicates that the 5-HT system can be affected in response to AMI and might thus represent a target structure for patients' treatment. This review aims to highlight the importance of the 5-HT system after AMI by describing the role of individual serotonin receptors (5-HTR) in the regulation of physiological and pathophysiological responses. It particularly focuses on the signaling pathways of the serotonin receptors 1, 2, 4, and 7, which are expressed in the cardiovascular system, during disease onset, and the following remodeling process. This overview also emphasizes the importance of the 5-HT system in AMI etiology and highlights 5-HTRs as potential treatment targets.


Subject(s)
Myocardial Infarction , Serotonin , Humans , Serotonin/metabolism , Receptors, Serotonin
3.
Immunol Res ; 2024 Apr 16.
Article in English | MEDLINE | ID: mdl-38627327

ABSTRACT

The long-term symptoms of COVID-19 are the subject of public and scientific discussions. Understanding how those long COVID symptoms co-occur in clusters of syndromes may indicate the pathogenic mechanisms of long COVID. Our study objective was to cluster the different long COVID symptoms. We included persons who had a COVID-19 and assessed long-term symptoms (at least 4 weeks after first symptoms). Hierarchical clustering was applied to the symptoms as well as to the participants based on the Euclidean distance h of the log-values of the answers on symptom severity. The distribution of clusters within our cohort is shown in a heat map.From September 2021 to November 2023, 2371 persons with persisting long COVID symptoms participated in the study. Self-assessed long COVID symptoms were assigned to three symptom clusters. Cluster A unites rheumatological and neurological symptoms, cluster B includes neuro-psychological symptoms together with cardiorespiratory symptoms, and a third cluster C shows an association of general infection signs, dermatological and otology symptoms. A high proportion of the participants (n = 1424) showed symptoms of all three clusters. Clustering of long COVID symptoms reveals similarities to the symptomatology of already described syndromes such as the Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) or rheumatological autoinflammatory diseases. Further research may identify serological parameters or clinical risk factors associated with the shown clusters and might improve our understanding of long COVID as a systemic disease. Furthermore, multimodal treatments can be developed and scaled for symptom clusters and associated impairments.

4.
Pharmacoecon Open ; 8(1): 49-63, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38060096

ABSTRACT

OBJECTIVES: To develop a value set reflecting the United States (US) general population's preferences for health states described by the Functional Assessment of Cancer Therapy (FACT) eight-dimensions preference-based multi-attribute utility instrument (FACT-8D), derived from the FACT-General cancer-specific health-related quality-of-life (HRQL) questionnaire. METHODS: A US online panel was quota-sampled to achieve a general population sample representative by sex, age (≥ 18 years), race and ethnicity. A discrete choice experiment (DCE) was used to value health states. The valuation task involved choosing between pairs of health states (choice-sets) described by varying levels of the FACT-8D HRQL dimensions and survival (life-years). The DCE included 100 choice-sets; each respondent was randomly allocated 16 choice-sets. Data were analysed using conditional logit regression parameterized to fit the quality-adjusted life-year framework, weighted for sociodemographic variables that were non-representative of the US general population. Preference weights were calculated as the ratio of HRQL-level coefficients to the survival coefficient. RESULTS: 2562 panel members opted in, 2462 (96%) completed at least one choice-set and 2357 (92%) completed 16 choice-sets. Pain and nausea were associated with the largest utility weights, work and sleep had more moderate utility weights, and sadness, worry and support had the smallest utility weights. Within dimensions, more severe HRQL levels were generally associated with larger weights. A preference-weighting algorithm to estimate US utilities from responses to the FACT-General questionnaire was generated. The worst health state's value was -0.33. CONCLUSIONS: This value set provides US population utilities for health states defined by the FACT-8D for use in evaluating oncology treatments.

5.
Psychol Med ; 54(3): 447-456, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37927223

ABSTRACT

Debate is ongoing on the efficacy of cognitive behavior therapy (CBT) for myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS). With an individual patient data (IPD) meta-analysis we investigated whether the effect of CBT varied by patient characteristics. These included post-exertional malaise (PEM), a central feature of ME/CFS according to many. We searched for randomized controlled trials similar with respect to comparison condition, outcomes and treatment-protocol. Moderation on fatigue severity (Checklist Individual Strength, subscale fatigue severity), functional impairment (Sickness Impact Profile-8) and physical functioning (Short Form-36, subscale physical functioning) was investigated using linear mixed model analyses and interaction tests. PROSPERO (CRD42022358245). Data from eight trials (n = 1298 patients) were pooled. CBT showed beneficial effects on fatigue severity (ß = -11.46, 95% CI -15.13 to -7.79); p < 0.001, functional impairment (ß = -448.40, 95% CI -625.58 to -271.23); p < 0.001; and physical functioning (ß = 9.64, 95% CI 3.30 to 15.98); p < 0.001. The effect of CBT on fatigue severity varied by age (pinteraction = 0.003), functional impairment (pinteraction = 0.045) and physical activity pattern (pinteraction = 0.027). Patients who were younger, reported less functional impairments and had a fluctuating activity pattern benefitted more. The effect on physical functioning varied by self-efficacy (pinteraction = 0.025), with patients with higher self-efficacy benefitting most. No other moderators were found. It can be concluded from this study that CBT for ME/CFS can lead to significant reductions of fatigue, functional impairment, and physical limitations. There is no indication patients meeting different case definitions or reporting additional symptoms benefit less from CBT. Our findings do not support recent guidelines in which evidence from studies not mandating PEM was downgraded.


Subject(s)
Cognitive Behavioral Therapy , Fatigue Syndrome, Chronic , Humans , Fatigue Syndrome, Chronic/therapy , Exercise , Exercise Therapy/methods , Cognitive Behavioral Therapy/methods
6.
Heliyon ; 9(10): e20627, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37842570

ABSTRACT

Background: Cardiac thrombi are an important cause of ischemic stroke but are infrequently detected on cardiac imaging. We hypothesized that this might be explained by early dissolution of these cardiac thrombi after stroke occurrence. Methods: We performed a single-center observational pilot study between November 2019 and November 2020, embedded in the larger "Mind-the-Heart" study. We included patients with AIS and a cardiac thrombus in the left atrium or ventricle (filling defect <100 Hounsfield Units) diagnosed on cardiac CT that was acquired during the initial stroke imaging protocol. We repeated cardiac CT within one week to determine if the thrombus had dissolved. Results: Five patients (four men, median age 52 years, three with atrial fibrillation and one with anticoagulation therapy at baseline) were included. Median time from symptom onset to first cardiac CT was 383 (range 42-852) minutes and median time from first to second cardiac CT was three days (range 1-7). Two patients received intravenous thrombolysis (IVT). In total, six thrombi were seen on initial CT imaging (one in the left ventricle, four in the left atrial appendage, one in the left atrium). The left atrium thrombus and one left atrial appendage thrombus had dissolved on follow-up cardiac CT, one of which was in a patient with IVT treatment. Conclusion: This pilot study illustrates that cardiac thrombi can dissolve within days of stroke occurrence both with and without IVT treatment.

7.
Philos Trans A Math Phys Eng Sci ; 381(2255): 20220102, 2023 Sep 18.
Article in English | MEDLINE | ID: mdl-37517440

ABSTRACT

We present what Aristotle wrote on identity in a leisurely manner, which is much more than is generally known, save among the cognoscenti (Aristotle scholars), and mutatis mutandis about the introduction of the identity-symbol [Formula: see text]. We add two codas, one on the so-called Leibniz' Law, which is different (but resembles) what passes for it in logic and philosophy, and one on the status of identity, as accepted by mathematicians and logicians, in physics. This article is part of the theme issue 'Identity, individuality and indistinguishability in physics and mathematics'.

8.
Ann Clin Microbiol Antimicrob ; 22(1): 27, 2023 Apr 18.
Article in English | MEDLINE | ID: mdl-37072830

ABSTRACT

BACKGROUND: Culture of Neisseria gonorrhoeae is essential for surveillance of complete antimicrobial susceptibility profiles. In 2014, the culture success rate of N. gonorrhoeae from samples taken at the clinic for sexually transmitted infections (STI clinic), Oslo University Hospital, Norway, was only 20%. The present study aimed to improve gonococcal culture rates using bedside inoculation of patient samples on gonococcal agar plates and incubation at the STI clinic. METHODS: This prospective quality improvement study was conducted by the STI clinic and the Department of Microbiology at Oslo University Hospital from May 2016 - October 2017. When culture of N. gonorrhoeae was clinically indicated, we introduced a parallel 'bedside culture' at the STI clinic and compared results with the standard culture at the microbiology department. Samples were taken from urethra, anorectum, pharynx and cervix. Culture rates were compared across symptomatic and asymptomatic anatomical sites. RESULTS: From 596 gonococcal-positive PCR samples, bedside culture had a significantly higher success rate of 57% compared to 41% with standard culture (p < 0.05). Overall, culture rate from symptomatic sites was 91% v. 45% from asymptomatic sites. The culture rates from different anatomical sites were as follows: urethra 93%, anorectum 64%, pharynx 28% and cervix 70%. Bedside culture significantly (p < 0.05) improved the culture rates for symptomatic urethral and asymptomatic pharyngeal samples. CONCLUSIONS: Where feasible, bedside inoculation on gonococcal agar plates and incubation of samples from patients with gonorrhoea is recommended. This will improve the culture diagnostics and provide additional gonococcal isolates for antimicrobial resistance surveillance.


Subject(s)
Anti-Infective Agents , Gonorrhea , Sexually Transmitted Diseases , Female , Humans , Neisseria gonorrhoeae , Prospective Studies , Agar , Sexually Transmitted Diseases/drug therapy , Gonorrhea/diagnosis , Gonorrhea/drug therapy , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Microbial Sensitivity Tests , Drug Resistance, Bacterial
9.
Transplant Cell Ther ; 29(1): 27-33, 2023 01.
Article in English | MEDLINE | ID: mdl-36241147

ABSTRACT

Although it has been shown that the production of functional chimeric antigen receptor T cells is feasible in patients with B-cell malignancies, it is currently unclear whether sufficient amounts of functional autologous CAR T cells can be generated from patients with autoimmune diseases. Intrinsic T-cell abnormalities and T-cell-targeted immune suppression in patients with autoimmunity may hamper the retrieval of sufficient T cells and their transduction and expansion into CAR T cells. Patients with active systemic lupus erythematosus (SLE) underwent leukapheresis after tapering glucocorticoids and stopping T-cell-suppressive drugs. This material was used as source for manufacturing anti-CD19 CAR T-cell products (CAR) in clinical scale. Cells were transduced with a lentiviral anti-CD19 CAR vector and expanded under good manufacturing practice (GMP) conditions using a closed, semi-automatic system. Functionality of these CAR T cells derived from autoimmune patient cells was tested in vitro. Six SLE patients were analyzed. Leukapheresis could be successfully performed in all patients yielding sufficient T-cell numbers for clinical scale CAR T-cell production. In addition, CAR T cells showed high expansion rates and viability, leading to CAR T cells in sufficient doses and quality for clinical use. CAR T cells from all patients showed specific cytotoxicity against CD19+ cell lines in vitro. GMP grade generation of CD19 CAR T-cell products suitable for clinical use is feasible in patients with autoimmune disease.


Subject(s)
Lupus Erythematosus, Systemic , Receptors, Chimeric Antigen , Humans , T-Lymphocytes , Cell Line , B-Lymphocytes , Lupus Erythematosus, Systemic/therapy
10.
Am J Otolaryngol ; 43(5): 103579, 2022.
Article in English | MEDLINE | ID: mdl-35988361

ABSTRACT

INTRODUCTION: Hearing loss is one of the self-reported symptoms of Long COVID patients, however data from objective and subjective audiological tests demonstrating diminished hearing in Long COVID patients has not been published. MATERIALS AND METHODS: Respondents of a large Long COVID online survey were invited to the ENT-department for an otologic exam. The participants were split into three groups based on their history of SARS-CoV-2 infection and persistence of symptoms. Respondents with a history of a SARS-CoV-2 infection were allocated to the Long COVID group, if they reported persistent symptoms and to the Ex COVID group, if they had regained their previous level of health. Participants without a history of SARS-CoV-2 infection made up the No COVID control group. In total, 295 ears were examined with otoscopy, tympanograms, pure tone audiometry and otoacoustic emissions. Ears with known preexisting hearing loss or status post ear surgery, as well as those with abnormal otoscopic findings, non-type A tympanograms or negative Rinne test were excluded. RESULTS: Compared to the No COVID and Ex COVID groups, we did not find a clinically significant difference in either hearing thresholds or frequency specific TEOAEs. However, at 500 Hz the data from the left ear, but not the right ear showed a significantly better threshold in the Ex COVID group, compared to Long COVID and No COVID groups. Any of the other tested frequencies between 500 Hz and 8 kHz were not significantly different between the different groups. There was a significantly lower frequency-specific signal-to-noise-ratio of the TEOAEs in the Long COVID compared to the No COVID group at 2.8 kHz. At all other frequencies, there were no significant differences between the three groups in the TEOAE signal-to-noise-ratio. CONCLUSION: This study detected no evidence of persistent cochlear damage months after SARS-CoV-2 infection in a large cohort of Long COVID patients, as well as those fully recovered.


Subject(s)
COVID-19 , Hearing Loss, Sensorineural , Adult , Audiometry, Pure-Tone , Auditory Threshold , COVID-19/complications , Hearing Loss, Sensorineural/diagnosis , Humans , Otoacoustic Emissions, Spontaneous , SARS-CoV-2 , Post-Acute COVID-19 Syndrome
11.
Immunother Adv ; 2(1): ltac007, 2022.
Article in English | MEDLINE | ID: mdl-35919491

ABSTRACT

Immunotoxins, which are fusion proteins of an antibody fragment and a fragment of a bacterial or a plant toxin, induce apoptosis in target cells by inhibition of protein synthesis. ADP-ribosylating toxins often have few lysine residues in their catalytic domain. As they are the target for ubiquitination, the low number of lysines possibly prevents ubiquitin-dependent degradation of the toxin in the cytosol. To reduce this potential degradation, we aimed to generate a lysine-free (noK), Pseudomonas exotoxin (PE)-based immunotoxin. The new generation 24 kDa PE, which lacks all but the furin-cleavage site of domain II, was mutated at lysine 590 (K590) and at K606 in a CD22-targeting immunotoxin and activity was determined against various B cell malignancies in vitro and in vivo. On average, K590 mutated to arginine (R) reduced cytotoxicity by 1.3-fold and K606R enhanced cytotoxicity by 1.3-fold compared to wild type (wt). Mutating K590 to histidine or deleting K590 did not prevent this loss in cytotoxicity. Neither stability nor internalization rate of K590R could explain reduced cytotoxicity. These results highlight the relevance of lysine 590 for PE intoxication. In line with in vitro results, the K606R mutant was more than 1.8-fold more active than the other variants in vivo suggesting that this single mutation may be beneficial when targeting CD22-positive malignancies. Finally, reduced cytotoxicity by K590R was compensated for by K606R and the resulting lysine-free variant achieved wt-like activity in vitro and in vivo. Thus, PE24-noK may represent a promising candidate for down-stream applications that would interfere with lysines.

12.
Trials ; 22(1): 867, 2021 Dec 02.
Article in English | MEDLINE | ID: mdl-34857010

ABSTRACT

BACKGROUND: Coronavirus disease 2019 (COVID-19) results in debilitating long-term symptoms, often referred to as Post-Acute Sequelae of SARS-CoV-2 Infection (PASC), in a substantial subgroup of patients. One of the most prevalent symptoms following COVID-19 is severe fatigue. Prompt delivery of cognitive behavioural therapy (CBT), an evidence-based treatment that has shown benefit in reducing severe fatigue in other conditions, may reduce post-COVID-19 fatigue. Based on an existing CBT protocol, a blended intervention of 17 weeks, Fit after COVID, was developed to treat severe fatigue after the acute phase of infection with SARS-CoV-2. METHOD: The ReCOVer study is a multicentre 2-arm randomised controlled trial (RCT) to test the efficacy of Fit after COVID on severe post-infectious fatigue. Participants are eligible if they report severe fatigue 3 up to and including 12 months following COVID-19. One hundred and fourteen participants will be randomised to either Fit after COVID or care as usual (ratio 1:1). The primary outcome, the fatigue severity subscale of the Checklist Individual Strength (CIS-fatigue), is assessed in both groups before randomisation (T0), directly post CBT or following care as usual (T1), and at follow-up 6 months after the second assessment (T2). In addition, a long-term follow-up (T3), 12 months after the second assessment, is performed in the CBT group only. The primary objective is to investigate whether CBT will lead to a significantly lower mean fatigue severity score measured with the CIS-fatigue across the first two follow-up assessments (T1 and T2) as compared to care as usual. Secondary objectives are to determine the proportion of participants no longer being severely fatigued (operationalised in different ways) at T1 and T2 and to investigate changes in physical and social functioning, in the number and severity of somatic symptoms and in problems concentrating across T1 and T2. DISCUSSION: This is the first trial testing a cognitive behavioural intervention targeting severe fatigue after COVID-19. If Fit after COVID is effective in reducing fatigue severity following COVID-19, this intervention could contribute to alleviating the long-term health consequences of COVID-19 by relieving one of its most prevalent and distressing long-term symptoms. TRIAL REGISTRATION: Netherlands Trial Register NL8947 . Registered on 14 October 2020.


Subject(s)
COVID-19 , Cognitive Behavioral Therapy , COVID-19/complications , Fatigue/diagnosis , Fatigue/etiology , Fatigue/therapy , Humans , Multicenter Studies as Topic , Randomized Controlled Trials as Topic , SARS-CoV-2 , Treatment Outcome , Post-Acute COVID-19 Syndrome
13.
Transl Psychiatry ; 11(1): 209, 2021 04 08.
Article in English | MEDLINE | ID: mdl-33833225

ABSTRACT

Creativity is an essential cognitive ability linked to all areas of our everyday functioning. Thus, finding a way to enhance it is of broad interest. A large number of anecdotal reports suggest that the consumption of psychedelic drugs can enhance creative thinking; however, scientific evidence is lacking. Following a double-blind, placebo-controlled, parallel-group design, we demonstrated that psilocybin (0.17 mg/kg) induced a time- and construct-related differentiation of effects on creative thinking. Acutely, psilocybin increased ratings of (spontaneous) creative insights, while decreasing (deliberate) task-based creativity. Seven days after psilocybin, number of novel ideas increased. Furthermore, we utilized an ultrahigh field multimodal brain imaging approach, and found that acute and persisting effects were predicted by within- and between-network connectivity of the default mode network. Findings add some support to historical claims that psychedelics can influence aspects of the creative process, potentially indicating them as a tool to investigate creativity and subsequent underlying neural mechanisms. Trial NL6007; psilocybin as a tool for enhanced cognitive flexibility; https://www.trialregister.nl/trial/6007 .


Subject(s)
Cognition , Creativity , Hallucinogens/administration & dosage , Psilocybin , Brain , Humans , Magnetic Resonance Imaging , Psilocybin/administration & dosage
14.
J Intern Med ; 289(4): 523-531, 2021 04.
Article in English | MEDLINE | ID: mdl-32976665

ABSTRACT

BACKGROUND: A high proportion of COVID-19 patients have cardiac involvement, even those without known cardiac disease. Downregulation of angiotensin converting enzyme 2 (ACE2), a receptor for SARS-CoV-2 and the renin-angiotensin system, as well as inflammatory mechanisms have been suggested to play a role. ACE2 is abundant in the gut and associated with gut microbiota composition. We hypothesized that gut leakage of microbial products, and subsequent inflammasome activation could contribute to cardiac involvement in COVID-19 patients. METHODS: Plasma levels of a gut leakage marker (LPS-binding protein, LBP), a marker of enterocyte damage (intestinal fatty acid binding protein, IFABP), a gut homing marker (CCL25, ligand for chemokine receptor CCR9) and markers of inflammasome activation (IL-1ß, IL-18 and their regulatory proteins) were measured at three time points (day 1, 3-5 and 7-10) in 39 hospitalized COVID-19 patients and related to cardiac involvement. RESULTS: Compared to controls, COVID-19 patients had elevated plasma levels of LBP and CCL25 but not IFABP, suggesting impaired gut barrier function and accentuated gut homing of T cells without excessive enterocyte damage. Levels of LBP were twice as high at baseline in patients with elevated cardiac markers compared with those without and remained elevated during hospitalization. Also, markers of inflammasome activation were moderately elevated in patients with cardiac involvement. LBP was associated with higher NT-pro-BNP levels, whereas IL-18, IL-18BP and IL-1Ra were associated with higher troponin levels. CONCLUSION: Patients with cardiac involvement had elevated markers of gut leakage and inflammasome activation, suggestive of a potential gut-heart axis in COVID-19.


Subject(s)
COVID-19 , Chemokines, CC/metabolism , Gastrointestinal Microbiome/immunology , Heart Diseases , Inflammasomes/metabolism , Intestinal Mucosa , SARS-CoV-2 , Acute-Phase Proteins/metabolism , COVID-19/complications , COVID-19/immunology , Carrier Proteins/metabolism , Correlation of Data , Heart Diseases/immunology , Heart Diseases/virology , Humans , Interleukin-18/metabolism , Interleukin-1beta/metabolism , Intestinal Mucosa/immunology , Intestinal Mucosa/microbiology , Intestinal Mucosa/physiopathology , Membrane Glycoproteins/metabolism , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , SARS-CoV-2/pathogenicity , SARS-CoV-2/physiology , Troponin/blood
15.
Unfallchirurg ; 124(7): 568-573, 2021 Jul.
Article in German | MEDLINE | ID: mdl-33119793

ABSTRACT

BACKGROUND: For proximal femoral fractures the time to surgery has been reported to influence the mortality rate. To date, detailed analyses in geriatric patients with distal femoral fractures are not available. MATERIAL AND METHODS: A monocentric study with retrospective data retrieved from an electronic database was performed. The study included distal femoral fractures with surgical treatment between 2006 and 2017 in patients aged 65 years and older. A total of ten variables were evaluated and two outcome measures were investigated: revision and mortality in relation to time of surgery within 24 h or later. The minimum follow-up was 2 years. For patients who were still alive the Parker score was calculated. The null hypothesis was that time to surgery does not affect revision and mortality. RESULTS: A total of 57 consecutive patients with 60 fractures and an average age of 82.5 years (65-97 years) were included. Most of the fractures were supracondylar (n = 42). All but three fractures were treated with internal fixation. The revision rate was 17.5% (peri-implant fractures n = 4, infections n = 2, non-union n = 2, impaired wound healing n = 2 and secondary dislocation n = 1). The 1­year mortality rate was 20%. No significant effects on revision (p = 0.414) and survival rate (log rank 0.175) were observed for patients treated within 24 h or later. After a mean postoperative period of 5.5 years, the mean Parker score for 18 living patients was 5.9. CONCLUSION: Time to surgery demonstrated no significant effects with respect to revision and mortality. Multicenter studies are absolutely necessary to increase the sample size and statistical power.


Subject(s)
Arthroplasty, Replacement, Hip , Femoral Fractures , Periprosthetic Fractures , Aged , Aged, 80 and over , Femoral Fractures/surgery , Fracture Fixation, Internal , Humans , Periprosthetic Fractures/surgery , Reoperation , Retrospective Studies
16.
Sci Rep ; 10(1): 19836, 2020 11 16.
Article in English | MEDLINE | ID: mdl-33199768

ABSTRACT

The efforts to improve the treatment efficacy in blind patients with retinal degenerative diseases would greatly benefit from retinal activity feedback, which is lacking in current retinal implants. While the door for a bidirectional communication device that stimulates and records intraretinally has been opened by the recent use of silicon-based penetrating probes, the biological impact induced by the insertion of such rigid devices is still unknown. Here, we developed for the first time, flexible intraretinal probes and validated in vitro the acute biological insertion impact in mouse retinae compared to standard silicon-based probes. Our results show that probes based on flexible materials, such as polyimide and parylene-C, in combination with a narrow shank design 50 µm wide and 7 µm thick, and the use of insertion speeds as high as 187.5 µm/s will successfully penetrate the retina, reduce the footprint of the insertion to roughly 2 times the cross-section of the probe, and induce low dead cell counts, while keeping the vitality of the tissue and recording the neural activity at different depths.


Subject(s)
Retina/physiology , Retina/surgery , Animals , Electrodes, Implanted , Equipment Design , Feedback, Physiological , Materials Testing , Mice , Microelectrodes , Phantoms, Imaging , Pliability , Silicon/chemistry
17.
Pharm Res ; 37(12): 231, 2020 Oct 29.
Article in English | MEDLINE | ID: mdl-33123816

ABSTRACT

PURPOSE: This work details experimental observations on the effect of liquid flow percolating through packed beds of crystals to elucidate how the filtration pressure severely alters the size distribution and crystal shape. Pressure filtration is widely used in the pharmaceutical industry, and frequently results in undesired size distribution changes that hinder further processing. METHODS: The percolation methodology presented fixes fluid flow through a bed of crystals, resulting in a pressure over the bed. X-ray computed tomography (XCT) provided detailed observations of the bed structure. Detailed 2D particle size data was obtained using automated microscopy and was analysed using an in-house developed tool. RESULTS: Crystal breakage is observed when the applied pressure exceeds a critical pressure: 0.5-1 bar for ibuprofen, 1-2 bar for ß-L glutamic acid (LGA) and 2-2.5 bar for para amino benzoic acid (PABA). X-ray computed tomography showed significant changes in bed density under the applied pressure. Size analysis and microscope observations showed two modes of breakage: (i) snapping of long crystals and (ii) shattering of crystals. CONCLUSION: LGA and PABA have a similar breakage strength (50 MPa), ibuprofen is significantly weaker (9 MPa). Available breakage strength data may be correlated to the volumetric Gibbs free energy. Data from 12 and 35 mm bed diameters compares well to literature data in a 80 mm filter; the smaller, easy to operate percolation unit is a versatile tool to assess crystal breakage in filtration operations.


Subject(s)
Chemistry, Pharmaceutical/methods , Drug Compounding/methods , Filtration , Crystallization , Hydrodynamics , Particle Size , Pressure , Solutions
18.
Support Care Cancer ; 28(10): 4627-4644, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32556622

ABSTRACT

PURPOSE: Given the high survival rate of cervical cancer patients, understanding women's health-related quality of life (HRQL) during and after treatment is of major clinical importance. We conducted a systematic review to synthesize all available evidence about the effects of each contemporary treatment modality for cervical cancer on all dimensions of women's HRQL, including symptoms, functioning, and global HRQL. METHODS: We searched four electronic databases from January 2000 to September 2019, cross-referenced and searched by author name for studies of patients treated for cervical cancer that reported patient-reported outcomes (PROs) before treatment and with at least one post-treatment measurement. Two independent reviewers applied inclusion and quality criteria and extracted findings. Studies were categorized by treatment to determine specific treatment effects on PROs. Results were narratively summarized. RESULTS: We found twenty-nine papers reporting 23 studies. After treatments with curative intent for early or locally advanced disease, lymphedema, diarrhea, menopausal symptoms, tight and shorter vagina, pain during intercourse, and sexual worries remained long-term problems; however, sexual activity improved over time. HRQL and psychological distress were impacted during treatment with also worsening of global HRQL but improved 3-6 months after treatment. In patients with metastatic or recurrent disease, pain improved during palliative treatment or remained stable, with no differences in global HRQL found over time. CONCLUSION: Whereas most symptoms worsen during treatment and improve in the first 3 months after completing treatment, symptoms like lymphedema, menopausal symptoms, and sexual worries develop gradually and persist after curative treatment. These findings can be used to inform clinical practice and facilitate communication and shared decision-making. More research is needed in very early cervical cancer and the impact of fertility sparing therapy on PROs.


Subject(s)
Patient Reported Outcome Measures , Quality of Life/psychology , Uterine Cervical Neoplasms/therapy , Female , Humans , Self Report , Uterine Cervical Neoplasms/pathology
19.
Neuropsychopharmacology ; 45(12): 2003-2011, 2020 11.
Article in English | MEDLINE | ID: mdl-32446245

ABSTRACT

There is growing interest in the therapeutic utility of psychedelic substances, like psilocybin, for disorders characterized by distortions of the self-experience, like depression. Accumulating preclinical evidence emphasizes the role of the glutamate system in the acute action of the drug on brain and behavior; however this has never been tested in humans. Following a double-blind, placebo-controlled, parallel group design, we utilized an ultra-high field multimodal brain imaging approach and demonstrated that psilocybin (0.17 mg/kg) induced region-dependent alterations in glutamate, which predicted distortions in the subjective experience of one's self (ego dissolution). Whereas higher levels of medial prefrontal cortical glutamate were associated with negatively experienced ego dissolution, lower levels in hippocampal glutamate were associated with positively experienced ego dissolution. Such findings provide further insights into the underlying neurobiological mechanisms of the psychedelic, as well as the baseline, state. Importantly, they may also provide a neurochemical basis for therapeutic effects as witnessed in ongoing clinical trials.


Subject(s)
Hallucinogens , Psilocybin , Ego , Glutamic Acid , Hallucinogens/pharmacology , Humans , Solubility
20.
Rev Med Interne ; 40(11): 714-721, 2019 Nov.
Article in French | MEDLINE | ID: mdl-31301943

ABSTRACT

BACKGROUND: Urinary tract infections (UTI) are the second cause of community-acquired bacterial infections in the elderly. Distinguishing symptomatic UTI from asymptomatic bacteriuria is problematic, as older adults are less likely to present with localized urinary symptoms. We evaluated characteristics of patients presenting UTI among elderly with sepsis. Moreover, we aimed to evaluate the sensibility and specificity of urine dipstick tests in the diagnosis of UTI in geriatric population. PATIENTS AND METHOD: We led a prospective, monocentric, observational study between April 2017 and January 2018. We included patients hospitalized in geriatric wards, who were prescribed urine culture for UTI symptoms or/and infection without primary sites for which a urine culture was prescribed. Dipstick urinalyses were performed for all patients. Clinical and biological characteristics of all patients were compared according to the final diagnosis of UTI. Moreover, results of dipstick tests were evaluated for the diagnosis of UTI in this population. RESULTS: Among 165 patients, 67 (40.6 %) had a UTI and 98 (59.4 %) had another diagnosis. These two groups were comparable for age and daily-living activities. In the UTI group, the proportion of women was higher than in the other group (P<0.05), and mean MMSE score was lower (P<0.05). Positive urine dipstick test for leukocytes and/or nitrites had high sensitivity (92 %), but low specificity (50 %). Negative predictive value of this test was high (91 %). CONCLUSION: For suspicion of UTI among elderly, few criteria are specific. Negative dipstick tests can suggest an absence of UTI due to its high negative predictive value.


Subject(s)
Urinalysis/methods , Urinary Tract Infections/diagnosis , Aged, 80 and over , Bacteriuria/diagnosis , Female , Geriatrics , Humans , Male , Predictive Value of Tests , Prospective Studies , Sensitivity and Specificity
SELECTION OF CITATIONS
SEARCH DETAIL
...