Meibomian gland characteristics in children: A narrative review.

Purpose: Despite extensive research on meibomian gland dysfunction (MGD) in adults, studies on paediatric populations remain limited. This review aims to provide a comprehensive analysis of the morphological characteristics of meibomian glands (MGs) in healthy children, focusing on identifying baseline features and factors influencing gland structure and function. Understanding these characteristics is critical for early detection of MGD, which can lead to ocular surface disorders such as dry eye disease (DED).

Catheter-Vessel Interactions During Aspiration Thrombectomy: A Comprehensive Analysis Using a Novel Swine Model.

Background And Purpose: Catheter-vessel interactions during aspiration thrombectomy may vary depending on vessel size, potentially affecting reperfusion outcomes. This study aimed to assess how vessel diameter influences procedural dynamics and reperfusion success rates using a swine model with real-time, direct vessel visualization.

Materials And Methods: An animal model utilizing Yorkshire swine was used to evaluate catheter-vessel interactions during aspiration thrombectomy.

Enhancing patient and family experience during intrahospital transfers from the ICU.

Nearly all patients experience an intrahospital transfer (IHT) during their hospital stay, whether from the ED to an inpatient unit, from an inpatient unit to imaging, or for other reasons. However, for patients who experience an IHT from an ICU, the risk of adverse health outcomes and negative experiences for both patients and their families are significant. This article explores the experience of families and patients during IHTs and strategies to improve the safety of the transfer and experience for patients and families.

Age Self Care, a program to improve aging in place through group learning and incremental behavior change: Preliminary data.

Background: Few programs exist to support aging in place for older adults. Age Self Care is a novel program providing older adults with evidence-based information using group sessions embedded within the structure of a community-based organization (CBO) to facilitate behavior change and support aging in place. We report on a preliminary study of Age Self Care conducted in collaboration between the University of California, San Francisco (UCSF) Division of Geriatrics, At Home With Growing Older (AHWGO), and San Francisco Village (SF Village).

Dynamin-1 is a potential mediator in cancer-related cognitive impairment.

Dynamin-1 (DNM1) is crucial for synaptic activity, neurotransmission, and associative memory, positioning it as a potential biomarker of cancer-related cognitive impairment (CRCI), a neurological consequence of cancer treatment characterized by memory loss, poor concentration, and impaired executive function. Through a stepwise approach, this study investigated the role of DNM1 in CRCI pathogenesis, incorporating both human data and animal models. The human study recruited newly diagnosed, chemotherapy-naïve adolescent and young adult cancer and non-cancer controls to complete a cognitive instrument (FACT-Cog) and blood draws for up to three time points.

Dynamin-1 is a potential mediator in Cancer-Related Cognitive Impairment.

Dynamin-1 (DNM1) consolidates memory through synaptic transmission and modulation and has been explored as a therapeutic target in Alzheimer's disease. Through a two-prong approach, this study examined its role in cancer-related cognitive impairment (CRCI) pathogenesis using human and animal models. The human study recruited newly diagnosed, chemotherapy-naïve adolescent and young adult cancer and non-cancer controls to complete a cognitive instrument (FACT-Cog) and blood draws for up to three time points.

Follow-up care compliance among patients diagnosed with unruptured intracranial aneurysms.

Objectives: Periodic imaging follow-up for patients with unruptured intracranial aneurysms (UIA) is crucial, as studies indicate higher rupture risk with aneurysm growth. However, few studies address patient adherence to follow-up recommendations. This study aims to identify compliance rates and factors influencing follow-up adherence.

Omega-3 fatty acids ameliorate vascular inflammation: A rationale for their atheroprotective effects.

Background And Aims: Clinical trials have demonstrated reductions in major adverse cardiovascular events with purified high-dose eicosapentaenoic acid (EPA), independent of effects on lipids. We aimed to investigate whether omega-3 fatty acids reduce vascular inflammation, a critical mediator of atherosclerosis, and hypothesised that EPA is superior to docosahexaenoic acid (DHA).

Methods: In a double-blind randomised controlled trial and cell-culture study, 40 healthy volunteers were supplemented with 4 g daily of either EPA, DHA, fish oil (2:1 EPA:DHA), or placebo for 30 days.

Understanding Knowledge and Barriers Related to Hepatitis B for Vietnamese Nail Salon Workers in the City of Philadelphia and Some of Its Environs.

In the United States (U.S.), up to 2.

Diversity in CO-Concentrating Mechanisms among Chemolithoautotrophs from the Genera , , and , Ubiquitous in Sulfidic Habitats Worldwide.

Members of the genera , , and fix carbon at hydrothermal vents, coastal sediments, hypersaline lakes, and other sulfidic habitats. The genome sequences of these ubiquitous and prolific chemolithoautotrophs suggest a surprising diversity of mechanisms for the uptake and fixation of dissolved inorganic carbon (DIC); these mechanisms are verified here. Carboxysomes are apparent in the transmission electron micrographs of most of these organisms but are lacking in sp.

Allelic resolution NGS HLA typing of Class I and Class II loci and haplotypes in Cape Town, South Africa.

The development of next-generation sequencing (NGS) methods for HLA genotyping has already had an impact on the scope and precision of HLA research. In this study, allelic resolution HLA typing was obtained for 402 individuals from Cape Town, South Africa. The data were produced by high-throughput NGS sequencing as part of a study of T-cell responses to Mycobacterium tuberculosis in collaboration with the University of Cape Town and Stanford University.

High-density lipoprotein cholesterol associated with change in coronary plaque lipid burden assessed by near infrared spectroscopy.

Background And Aims: Little is known about the relation between serum lipid parameters and serial change in plaque composition using in vivo coronary imaging. The aim of this study was to examine the association between serum lipids and change in coronary plaque lipid burden assessed by near-infrared spectroscopy (NIRS).

Methods: We performed serial NIRS-intravascular ultrasound studies in 49 patients who underwent coronary angiography for an acute coronary syndrome (ACS) or stable ischemic symptoms.

Regression of coronary atherosclerosis with infusions of the high-density lipoprotein mimetic CER-001 in patients with more extensive plaque burden.

Background: CER-001 is an engineered pre-beta high-density lipoprotein (HDL) mimetic, which rapidly mobilizes cholesterol. Infusion of CER-001 3 mg/kg exhibited a potentially favorable effect on plaque burden in the CHI-SQUARE (Can HDL Infusions Significantly Quicken Atherosclerosis Regression) study. Since baseline atheroma burden has been shown as a determinant for the efficacy of HDL infusions, the degree of baseline atheroma burden might influence the effect of CER-001.

CD147 required for corneal endothelial lactate transport.

Purpose: CD147/basigin is a chaperone for lactate:H(+) cotransporters (monocarboxylate transporters) MCT1 and MCT4. We tested the hypothesis that MCT1 and -4 in corneal endothelium contribute to lactate efflux from stroma to anterior chamber and that silencing CD147 expression would cause corneal edema.

Methods: CD147 was silenced via small interfering ribonucleic acid (siRNA) transfection of rabbit corneas ex vivo and anterior chamber lenti-small hairpin RNA (shRNA) pseudovirus in vivo.

Telomerase immortalization of human corneal endothelial cells yields functional hexagonal monolayers.

Human corneal endothelial cells (HCEnCs) form a monolayer of hexagonal cells whose main function is to maintain corneal clarity by regulating corneal hydration. HCEnCs are derived from neural crest and are arrested in the post-mitotic state. Thus cell loss due to aging or corneal endothelial disorders leads to corneal edema and blindness-the leading indication for corneal transplantation.

Spatial differences within the membrana granulosa in the expression of focimatrix and steroidogenic capacity.

In the ovarian follicular membrana granulosa there are morphological and functional differences between cells adjacent to the follicular fluid lumen, or aligning the basal lamina. Amongst the observed functional differences are steroidogenic capacity and expression levels of a novel basal lamina, focimatrix; both of which increase in the later stages of antral follicle growth. A number of different studies have produced apparently inconsistent results as to which cell layers are more steroidogenic.

Lactate-H⁺ transport is a significant component of the in vivo corneal endothelial pump.

Purpose: To confirm the expression of monocarboxylate transporters (MCT) 1, 2, and 4 in rabbit CE and to test the hypothesis that cellular buffering contributed by HCO₃⁻, NBCe1, and carbonic anhydrase (CA) activity facilitates lactate-H⁺ efflux thereby controlling corneal hydration in vivo.

Methods: MCT1-4 expression of rabbit endothelium was examined by Western blotting and immunofluorescence staining. Lactate-induced acidification (LIA) was measured in perfused CE in the presence and absence of HCO₃⁻ and acetazolamide (ACTZ) using tissue treated with siRNA specific to MCT1, 2, and 4.

Bicarbonate, NBCe1, NHE, and carbonic anhydrase activity enhance lactate-H+ transport in bovine corneal endothelium.

Purpose: To identify and localize the monocarboxylate transporters (MCTs) expressed in bovine corneal endothelial cells (BCEC) and to test the hypothesis that buffering contributed by HCO(3)(-), sodium bicarbonate cotransporter (NBCe1), sodium hydrogen exchanger (NHE), and carbonic anhydrase (CA) activity facilitates lactate flux.

Methods: MCT1-4 expression was screened by RT-PCR, Western blot analysis, and immunofluorescence. Endogenous lactate efflux and/or pH(i) were measured in BCEC in HCO(3)(-)-free or HCO(3)(-)-rich Ringer, with and without niflumic acid (MCT inhibitor), acetazolamide (ACTZ, a CA inhibitor), 5-(N-Ethyl-N-isopropyl)amiloride (EIPA) (Na(+)/H(+) exchange blocker), disodium 4,4'-diisothiocyanatostilbene-2,2'-disulfonate (DIDS; anion transport inhibitor), or with NBCe1-specific small interfering (si) RNA-treated cells.

Knockdown of NBCe1 in vivo compromises the corneal endothelial pump.

Purpose: To evaluate the role of the sodium bicarbonate cotransporter (NBCe1) as a component of the corneal endothelial pump in the in vivo rabbit eye.

Methods: Lentiviruses with NBCe1 shRNA and GFP expression cassettes were injected intracamerally. Knockdown efficacy was determined 1 week to 4 weeks later by immunofluorescence, Western blot analysis, and PCR.

A longitudinal study of gene expression in healthy individuals.

Background: The use of gene expression in venous blood either as a pharmacodynamic marker in clinical trials of drugs or as a diagnostic test requires knowledge of the variability in expression over time in healthy volunteers. Here we defined a normal range of gene expression over 6 months in the blood of four cohorts of healthy men and women who were stratified by age (22-55 years and > 55 years) and gender.

Methods: Eleven immunomodulatory genes likely to play important roles in inflammatory conditions such as rheumatoid arthritis and infection in addition to four genes typically used as reference genes were examined by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), as well as the full genome as represented by Affymetrix HG U133 Plus 2.

Strong population structure characterizes weediness gene evolution in the invasive grass species Brachypodium distachyon.

Mediterranean annual grasses have invaded California and have replaced vast areas of native grassland. One of these invasive grasses is Brachypodium distachyon, a new model species for the grasses with extensive genomic resources and a nearly completed genome sequence. This study shows that the level of genetic variation in invaded California grasslands is lower compared to the native range in Eurasia.

Galphao/i-stimulated proteosomal degradation of RGS20: a mechanism for temporal integration of Gs and Gi pathways.

The G(s) and G(i) pathways interact to control the levels of intracellular cAMP. Although coincident signaling through G(s) and G(i)-coupled receptors can attenuate G(s)-stimulated cAMP levels, it is not known if prior activation of the G(i) pathway can affect signaling by G(s)-coupled receptors. We have found that activated Galpha(o/i) interact with RGS20, a GTPase activating protein for members of the Galpha(omicron/i) family.