Publications by authors named "Isabelle Kim"

How human brain function is established through protracted trajectories of development is not yet fully understood. Maturation of γ-aminobutyric acid (GABA) circuits drives critical periods of cortical development in animal models. Whether early functional inhibition similarly impacts the pace of human brain development remains unknown.

View Article and Find Full Text PDF

Unconditional cash interventions, such as guaranteed income, are a proposed solution for mediating the adverse health outcomes associated with financial scarcity. To test this, the City of Los Angeles, California, conducted a mixed-methods, randomized controlled trial in which they gave 3202 people $1000 with no strings attached for 12 months in 2022. Although the quantitative findings demonstrated mixed health effects, the qualitative findings highlighted how recipients viewed their well-being as an insurance policy against scarcity and reallocated time to preventive health behaviors when receiving a guaranteed income.

View Article and Find Full Text PDF

Background: Effects of early and prolonged exposure to general anaesthesia on the developing brain are unclear. The study objective was to examine developmental outcomes at 10 months and 2-3 yr of age after general anaesthesia planned for >2 h in the first 2 months of life.

Methods: This is a secondary analysis of the General Anaesthesia & Brain Activity (GABA) study-a prospective, single-centre, longitudinal observational study.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effectiveness of a rapid immunoassay technique (Snibe) versus mass spectrometry (LC-MS/MS) in measuring plasma homocysteine levels, particularly in patients with nitrous oxide abuse.
  • Significant elevations in plasma homocysteine were found in nitrous oxide abusers, with the immunoassay delivering faster results, although it generally underestimated high levels compared to LC-MS/MS.
  • The findings highlight the need for the immunoassay as a quick initial screening tool, while still recommending confirmation with LC-MS/MS for accurate diagnosis of conditions associated with oxidative stress.
View Article and Find Full Text PDF
Article Synopsis
  • Previous research has raised concerns about the effects of early anesthesia and surgery on brain development in infants, prompting this study to examine functional brain connectivity in infants with such exposures compared to control infants.
  • The study used EEG to assess brain connectivity in 26 infants who had early anesthesia and 38 control infants at ages 2, 4, and 10 months, focusing on specific frequency bands of brain activity.
  • Results indicated that there was no significant impact of early anesthetic exposure on brain connectivity measures during the first year of life, although age itself did show some effects; further research is planned as these infants develop.
View Article and Find Full Text PDF

The recreational use of nitrous oxide (N2O) is an emerging public health issue. Chronic N2O abuse may result in various clinical symptoms, encompassing neurological, psychiatric and cardiovascular outcomes. Despite the difficulties for the laboratory investigation of N2O intoxication, there is currently no guidelines in France to help both clinicians and biologists use appropriate biomarkers for the diagnosis and monitoring of patients with clinical symptoms potentially related to N2O intoxication.

View Article and Find Full Text PDF

Tacrolimus (FK506) is an immunosuppressant that is experiencing a continuous rise in usage worldwide. The related side effects are known to be globally dose-dependent. Despite numerous studies on FK506, the mechanisms underlying FK506 toxicity are still not well understood.

View Article and Find Full Text PDF

Introduction: The present systematic review and meta-analysis explores the impacts of cognitive processing therapy (CPT), eye movement desensitization and reprocessing (EMDR), and prolonged exposure (PE) therapy on neural activity underlying the phenomenon of post-traumatic growth for adult trauma survivors.

Methods: We utilized the following databases to conduct our systematic search: Boston College Libraries, PubMed, MEDLINE, and PsycINFO. Our initial search yielded 834 studies for initial screening.

View Article and Find Full Text PDF
Article Synopsis
  • Recreational use of nitrous oxide (NO) can lead to serious neurological and psychological disorders, prompting the need for reliable biological markers to diagnose abuse.
  • The study analyzed data from 52 chronic NO abusers to evaluate the effectiveness of total vitamin B12, homocysteine, and methylmalonic acid (MMA) in correlating with NO consumption and clinical outcomes.
  • While no specific marker was found for the level of NO consumption, elevated homocysteine levels indicated recent use, and MMA showed a stronger correlation with the severity of clinical symptoms.
View Article and Find Full Text PDF

An adolescent girl consults a physician for abdominal pain attacks occurring regularly for 2 years. After eliminating gastroenterologic or gynecologic causes, an acute hepatic porphyria is suspected. The pink color of her urine seems consistent with the suspicion of porphyria; however, the urinary profile of porphyrins and its precursors is normal.

View Article and Find Full Text PDF

Management of triglyceride (TG) levels is essential in intensive care units (ICU), especially to manage the risk of pancreatitis induced by propofol. However, some therapeutics in ICU such as intravenous ascorbic acid protocol, especially used in the context of Covid-19 could lead to false decrease of triglycerides by analytical disruption of Trinder reaction. We report here the case of a sample with unmeasurable triglyceride levels partly due to high plasma ascorbic acid levels.

View Article and Find Full Text PDF

Background: Neurovascular imaging for patients with high-risk transient ischemic attack (TIA) or minor stroke in the emergency department (ED) with computed tomography angiography (CTA) of the head and neck is the guideline-recommended standard of care, but it is underutilized in routine practice. We conducted a quality initiative to improve adherence to guidelines.

Methods: Between January 2017 and March 2019, we implemented a decision support tool integrated into the electronic ordering system to guide ED physicians to order a CTA on patients with high-risk TIA or minor stroke defined as ongoing neurological deficits in the ED or resolved motor or speech deficits in the preceding 48 h.

View Article and Find Full Text PDF

Aims/hypothesis: Early compromised endothelial function challenges the ability of individuals with type 1 diabetes to perform normal physical exercise. The exact mechanisms underlying this vascular limitation remain unknown, but may involve either formation or metabolism of nitric oxide (NO), a major vasodilator, whose activity is known to be compromised by oxidative stress.

Methods: Muscle microvascular reactivity (near-infrared spectroscopy) to an incremental exhaustive bout of exercise was assessed in 22 adults with uncomplicated type 1 diabetes (HbA 64.

View Article and Find Full Text PDF

For people living with HIV, determinants of immunological non-response (INR) to combined antiretroviral therapy (cART) have not been fully elucidated. In a case-control study, we evaluated the influence of the nutritional and antioxidant status in HIV-1 adults whose cART was initiated between January 2001 and December 2013. Cases had persistent CD4 counts < 350/μL vs.

View Article and Find Full Text PDF

Carnitine palmitoyltransferase type 2 (CPT2) deficiency, a mitochondrial fatty acid oxidation disorder (MFAOD), is a cause of myopathy in its late clinical presentation. As for other MFAODs, its diagnosis may be evocated when blood acylcarnitine profile is abnormal. However, a lack of abnormalities or specificity in this profile is not exclusive of CPT2 deficiency.

View Article and Find Full Text PDF

Creatine transporter is currently the focus of renewed interest with emerging roles in brain neurotransmission and physiology, and the bioenergetics of cancer metastases. We here report on amendments of a standard creatine uptake assay which might help clinical chemistry laboratories to extend their current range of measurements of creatine and metabolites in body fluids to functional enzyme explorations. In this respect, short incubation times and the use of a stable-isotope-labeled substrate (D-creatine) preceded by a creatine wash-out step from cultured fibroblast cells by removal of fetal bovine serum (rich in creatine) from the incubation medium are recommended.

View Article and Find Full Text PDF