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PubMed2026

Associations of Trajectories of Loneliness and Neighborhood Stability with Depression, Alcohol and Substance Use, and Quality of Life among Women Living with HIV.

Social relationships are an important social determinant of health. Loneliness, the perceived gap between one's actual and desired relationships, has emerged as an important mechanism through which social relationships impact health. Like other intrapersonal-level factors associated with health, loneliness is influenced by broader social and structural factors, including characteristics of one's neighborhood social environment. Although neighborhood-level protective and risk factors for loneliness and for mental health have been identified, prior studies have often focused solely on self-reported perceptions of the neighborhood environment. Further, few have considered aspects of the neighborhood social environments, such as neighborhood stability (i.e., stability of the community with long or short-term residents), independent of neighborhood socioeconomic conditions. In the current analysis, we explored longitudinal patterns of loneliness in conjunction with neighborhood stability among women with HIV (WWH) enrolled into the MACS/WIHS Combined Cohort Study (MWCCS) from 2014-2019 (N 2019=1,394) to examine whether trajectories of loneliness and neighborhood stability were associated with depressive symptoms, non-prescription substance use, past-year cannabis use, number of alcoholic drinks per week, and several domains of quality of life. Loneliness at baseline (Betas = 0.24 - 0.54) and changes in loneliness over time (Betas = 0.11 - 0.26) were associated with each outcome, except for the association between changes in loneliness over time and drinks per week (Beta=0.13, p = 4.14x10-2), which did not persist after correcting for multiple comparisons. Neighborhood stability at baseline was associated with past year cannabis use (Beta=0.26, p = 1.00x10-2), depressive symptoms (Beta=-0.12, p = 1.54x10-3), and overall self-reported health (Beta=-0.08, p = 2.05x10-2). Changes in neighborhood stability across time were not associated with any outcome. Neighborhood stability moderated the association between changes in loneliness and general health perceptions. Our results demonstrate both overall loneliness and changes in loneliness over time have implications for current mental health in WWH, while changes in neighborhood stability did not.

Journal Article↗
PubMed1976

[Definition of the antineurotic, antipsychotic, neuroplegic and neuroleptic properties of psychotropic substances used in anesthesia and resuscitation].

There is a great deal of evidences (pharmacological, experimental and clinical, therapeutic, biological, biochemical, metabolic, toxicological and neurophysiological) which permits one to characterise among the psychotropic substances, the antineurotic or antipsychotic properties of certain psycholeptic drugs. They authorize also the differentiation in the sub-group of "antipsychotics" of substances with a dominant neuroplegic or neuroleptic activity and others, such as lithium, which do not have this activity. This revision of the terminology avoids the confusion maintained by the use of terms "tranquillisers" and "neuroleptics" in the classification of psychotropic drugs.

Anesthesia↗
PubMedDate not supplied

[Membrane stabilizing effect of medicinal substances used for the treatment of chronic venous insufficiency].

Experiments "in vitro" have brought evidence that butadion, escinol, esculetin, glyvenol, rutin, escin and the summary flavor noid preparation are capable of stabilizing erythrocytes membranes with the cells subjected to hypotonic hemolysis. Depending upon optimal concentrations the activity of the substances was within the range of 10(-3) to 10(-8). As concerns the intensity of the effect in the optimal concentration (10(-5) M), that corresponds to the one built up in the blood of patients given the therapeutic dose of the drug, the action of glyvenol was 1.6-3.5 times superior to that of the other compounds.

Erythrocyte Membrane↗
PubMed2026

Contact tracing for hepatitis C: perspectives of people with experience of substance use and hepatitis C on intervention acceptability.

INTRODUCTION: Chronic hepatitis C (HCV) is a major cause of cirrhosis and hepatocellular carcinoma. In the UK, the principal risk factor for HCV is injecting drug use. The introduction of direct acting anti-virals (DAA's) have transformed HCV care, with cure rates of over 95%. However, HCV is often asymptomatic, and reinfection is a concern. Modelling and real-life studies demonstrate the potential effectiveness of a contact tracing approach for finding people who have acquired HCV through injecting drug use. However, it is not used routinely in the UK. This qualitative study was undertaken to assess the acceptability of a contact tracing approach to identify people who have injected drugs with an index patient recently diagnosed with HCV. METHODS: Twelve people with lived or living experience of injecting drug use and an HCV diagnosis were interviewed using semi-structured interview topic guides. Participants were purposefully selected according to the inclusion criteria and to ensure there was an even spread of male and female participants. Sekhon's Theoretical Framework of Acceptability, incorporating seven components (affective attitude, burden, ethicality, intervention coherence, opportunity cost, perceived effectiveness, and self-efficacy) was used to analyse data from interview transcripts. RESULTS: A sample of 12 people who inject drugs in the UK indicated that a contact tracing approach was acceptable across two components of Sekhon's acceptability framework: affective attitude and ethicality. Participants broadly found the idea of tracing people who may be at risk of contracting HCV acceptable, and the approach aligned with their value systems. A contact tracing approach would help alleviate concerns about putting other people's lives at risk through HCV transmission and was seen as a 'sensible' way of finding people at risk. However, there were caveats to this acceptability. Contact tracing approaches delivered by mainstream health, or governmental organisations increased burden, opportunity costs and perceived effectiveness of a contact tracing approach for HCV, particularly within contexts of exclusion and criminalisation of people who inject drugs. Burden and opportunity costs were also affected by individual experiences and risks of violence, sexual violence and abuse. There was a lack of knowledge of contact tracing approaches amongst respondents, leading to a lack of intervention coherence and misunderstandings of what contact tracing was and how it would work. Trusted relationships with NGOs and HCV specialist nurses reduced burden and increased confidence and ability (self-efficacy) to engage with a contact tracing approach. CONCLUSION: People who inject drugs broadly perceive contact tracing as an acceptable method of finding people who are at risk of HCV. However, this acceptability is based on specific modes of delivery through trusted organisations. Findings further highlight the importance of naming and describing contact tracing approaches appropriately, as well as assessing and mitigating against potential risk to index patients, to increase self-efficacy and capacity to engage. Considering these findings, the potential for expanding existing contact tracing approaches should be explored to ensure the UK reaches and maintains its elimination targets.

Humans↗
PubMed1977

[The detection of soluble bacterial antigens studied in various pathological substances using counterimmunoelectrophoresis. Contribution to diagnosis(151 cases)].

Examinations for soluble bacterial antigens using counter-immunoelectrophoresis (C.I.E.) was carried out in 151 patients suspected of suffering from various infectious syndrome were successful for S. pneumoniae, H. influenzae b, N. meningitis, sero-group B and D streptococcus. Thus meningitis and pneumonia represent those areas in which the technique is particularly useful. Apart from its rapidity--result in a hour--C.I.E., in association with bacteriology, makes possible an increase in aetiological diagnosis of 27% with H. influenzae b, 24% with S. pneumoniae and 6% with N. meningitidis (lower result by virtue of technical difficulties with sero-group B). Thus using this technique we were able to reach an aetiological diagnosis in 10 (23.8%) out of 42 cases of purulent meningitis where blind antibiotic therapy had already been given. These two advantages--rapidity and increase in aetiological diagnosis--justify the introduction of this simple technique in every medical microbiology laboratory.

Antigens, Bacterial↗