Gasotransmitters play crucial roles in regulating many physiological processes, including cell signaling, cellular proliferation, angiogenesis, mitochondrial function, antioxidant production, nervous system functions and immune responses. Hydrogen sulfide (HS) is the most recently identified gasotransmitter, which is characterized by its biphasic behavior. At low concentrations, HS promotes cellular bioenergetics, whereas at high concentrations, it can exert cytotoxic effects.
View Article and Find Full Text PDFBackground: Clinical supervision by psychiatric liaison clinicians is frequently provided in medical settings such as oncology and palliative care, but rarely in endocrinology. Consequently, the specific psychosocial issues faced by endocrinologists in their daily clinical practice and how they deal with them remain largely unknown. We aimed to explore individual supervisions of endocrinologists to gain insight into what kind of clinical situations they present, how they react to them and how this is worked through in supervision.
View Article and Find Full Text PDFCollusions, interpersonal phenomena with an impact on patients, significant others, clinicians, and care, are mainly described in the psychotherapeutic literature but also occur in the medical setting. Comprehended as an unconscious bond between two or more persons from a psychotherapeutic perspective, definitions and collusive situations described in the medical setting vary. The question arises whether medical collusions, compared to collusions occurring in the psychiatric setting emerge in different clinical situations or are not identified as transference-countertransference experiences, since there is less sensitivity for the unconscious dimensions of care.
View Article and Find Full Text PDFIEEE Trans Med Imaging
September 2024
Ultrasound Localization Microscopy (ULM) has proven effective in resolving microvascular structures and local mean velocities at sub-diffraction-limited scales, offering high-resolution imaging capabilities. Dynamic ULM (DULM) enables the creation of angiography or velocity movies throughout cardiac cycles. Currently, these techniques rely on a Localization-and-Tracking (LAT) workflow consisting in detecting microbubbles (MB) in the frames before pairing them to generate tracks.
View Article and Find Full Text PDFInflammation plays a pivotal role in cancer development, with chronic inflammation promoting tumor progression and treatment resistance, whereas acute inflammatory responses contribute to protective anti-tumor immunity. Gasdermin D (GSDMD) mediates the release of pro-inflammatory cytokines such as IL-1β. While the release of IL-1β is directly linked to the progression of several types of cancers, the role of GSDMD in cancer is less clear.
View Article and Find Full Text PDF• ESMO Clinical Practice Guideline with key recommendations for communication and support of cancer patients and caregivers. • The guideline discusses training in communication of oncology clinicians and research on communication in cancer care. • Practical recommendations aim to support oncology clinicians in their communication with patients and caregivers.
View Article and Find Full Text PDFObjective: Dynamic Ultrasound Localization Microscopy (DULM) has first been developed for non-invasive Pulsatility measurements in the rodent brain. DULM relies on the localization and tracking of microbubbles (MBs) injected into the bloodstream, to obtain highly resolved velocity and density cine-loops. Previous DULM techniques required ECG-gating, limiting its application to specific datasets, and increasing acquisition time.
View Article and Find Full Text PDFIntroduction: The first COVID-19 wave (2020), W1, will remain extraordinary due to its novelty and the uncertainty on how to handle the pandemic. To understand what physicians went through, we collected narratives of frontline physicians working in a Swiss university hospital during W1.
Methods: Physicians in the Division of Internal Medicine of Lausanne University Hospital (CHUV) were invited to send anonymous narratives to an online platform, between 28 April and 30 June 2020.
Background: Hydrogen sulfide (HS) is a significant endogenous mediator that has been implicated in the progression of various forms of cancer including breast cancer (BC). Cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE), and 3-mercaptopyruvate sulfurtransferase (3MST) are the three principal mammalian enzymes responsible for HS production. Overexpression of CBS, CSE and 3MST was found to be associated with poor prognosis of BC patients.
View Article and Find Full Text PDFObjective: Clinical supervision of oncology clinicians by psycho-oncologists is an important means of psychosocial competence transfer and support. Research on this essential liaison activity remains scarce. The aim of this study was to assess the impact of supervision on oncology clinicians' feelings towards patients presented in supervision.
View Article and Find Full Text PDFBackground: Studies on mental health and substance use among medical students indicated worrying prevalence but have been mainly descriptive.
Aim: To evaluate the prevalence of substance use in a sample of medical students and investigate whether mental health variables have an influence on substance use.
Methods: The data were collected as part of the first wave of the ETMED-L, an ongoing longitudinal open cohort study surveying medical students at the University of Lausanne (Switzerland).
Recently, myriad studies have defined the versatile abilities of gasotransmitters and their synthesizing enzymes to play a "Maestro" role in orchestrating several oncological and non-oncological circuits and, thus, nominated them as possible therapeutic targets. Although a significant amount of work has been conducted on the role of nitric oxide (NO) and carbon monoxide (CO) and their inter-relationship in the field of oncology, research about hydrogen sulfide (HS) remains in its infancy. Recently, non-coding RNAs (ncRNAs) have been reported to play a dominating role in the regulation of the endogenous machinery system of HS in several pathological contexts.
View Article and Find Full Text PDFA rise in blood flow velocity variations (i.e. pulsatility) in the brain, caused by the stiffening of upstream arteries, is associated with cognitive impairment and neurodegenerative diseases.
View Article and Find Full Text PDFIntroduction: Hydrogen sulfide (HS) has been recently scrutinized for its critical role in aggravating breast cancer (BC) tumorigenicity. Several cancers aberrantly express HS synthesizing enzymes; Cystathionine-β-synthase (CBS) and cystathionine-γ-lyase (CSE). However, their levels and interdependence in BC require further studies.
View Article and Find Full Text PDFBackground: Physicians' narratives are means to approach and comprehend the practice of medicine, and physicians' embedment in their work and the healthcare context.
Objective: This study aimed to explore physicians' professional experiences and to examine how they are affected by factors related to their inner (psychological) and outer (institutional and social) worlds.
Methods: The study was designed as an exploratory qualitative study based on "narrative facilitators" (NF).
Antioxidants (Basel)
March 2023
The first of this pair of articles ends with the observation that -psychiatric liaison activity remains underdeveloped. Moreover, -psychiatric liaison is not based on sound empirical foundations and is not taught, which has had the consequence of putting it out of step with the transformations of medicine and the medical profession. In this second article, we discuss possible evolutions of psychiatric liaison and the role that social sciences can play in them.
View Article and Find Full Text PDFThis article reviews the genesis and development of liaison psychiatry, whose mission is (i) taking care for patients with psychiatric comorbidities (psychiatric consultation) and (ii) transferring knowledge and skills to somatic medicine and supporting clinicians in their practice (psychiatric liaison). We argue for a strengthening of psychiatric liaison and a consistent focus on the clinician as an object-subject of research, of training and of support. The following article will discuss the contribution of social sciences and quali-tative research to medicine and psychiatric liaison and outline the contours of a clinician-centered liaison model.
View Article and Find Full Text PDFObjectives: This qualitative study aimed to investigate communication about death in consultations with patients undergoing chemotherapy with no curative intent. Specifically, we examined (i) how the topic of death was approached, who raised it, in what way, and which responses were elicited, (ii) how the topic unfolded during consultations, and (iii) whether interaction patterns or distinguishing ways of communicating can be identified.
Methods: The data consisted of 134 audio-recorded follow-up consultations.
Purpose: To investigate how useful the Intermed-Self Assessment (IMSA) questionnaire and its components were for identifying which patient candidates would benefit most from case management (CM) in general practice.
Methods: The study was carried out in a group family medicine practice in Lausanne comprising seven GPs and four medical assistants, from February to April 2019. All the patients attending the practice between February and April 2019 were invited to complete the IMSA questionnaire.
Engineered gold nanoparticles (GNPs) have become a useful tool in various therapeutic and diagnostic applications. Uncertainty remains regarding the possible impact of GNPs on the immune system. In this regard, we investigated the interactions of polymer-coated GNPs with B cells and their functions in mice.
View Article and Find Full Text PDFInflammation is required for protective responses against pathogens and is thus essential for survival, but sustained inflammation can lead to diseases, such as atherosclerosis and cancer. Two important mediators of inflammation are the cytokines IL-1β and IL-18, which are produced by myeloid cells of the immune system, including macrophages. These cytokines are released into the extracellular space through pores formed in the plasma membrane by the oligomerized protein gasdermin D (GSDMD).
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