Association between COVID-19 infection and new-onset dementia in older adults: a systematic review and meta-analysis.

Background: The relationship between COVID-19 infection and a possible increased likelihood of older adults developing new-onset dementia (NOD) remains elusive.

Methods: A thorough search was performed across several databases including MEDLINE/PubMed, PsycINFO, Scopus, medRxiv, and PQDT Global for studies published in English from January 2020 to December 2023. Only original investigations exploring the link between COVID-19 infection and NOD were selected for inclusion.

Effect of basal luteinizing hormone/follicle-stimulating hormone ratio on clinical outcome of fertilization in patients with polycystic ovarian syndrome: a retrospective cohort study.

Background: The basal luteinizing hormone (LH) and the prior LH to follicle-stimulating hormone (FSH) ratio (LH/FSH) in polycystic ovarian syndrome (PCOS) are generally higher than those in non-PCOS patients and the general population. The potential negative effects of elevated LH on human reproductive function are highly controversial, as are the effects of down-regulation of LH on reproductive function. The purpose of this study was to evaluate the effect of the basal LH/FSH ratio on the live birth rate of PCOS patients undergoing fertilization (IVF) cycles.

A novel light-harvesting ZIF-9-TCPP as a promising FRET-based ratiometric fluorescence probe for sperm mobility.

The concentration of zinc ions in semen is significantly correlated with sperm viability and male fertility. In this work, a reliable ratiometric fluorescence probe (ZIF-9-TCPP) based on the efficient Förster resonance energy transfer (FRET) process between two luminophores, benzimidazole (BIM) and -tetra (4-carboxyphenyl) porphyrin (TCPP) for Zn detection has been constructed, where the emissions of BIM and TCPP are used as reference and detection signals. The proximity of BIM and TCPP in one framework (ZIF-9-TCPP) and the overlapped spectra between BIM and TCPP afford the attainment of a highly efficient FRET (around 90% efficiency).

Green one-step pyrolytic synthesis of folic acid-derived carbon dots for sensitive turn-on fluorescence detection of cysteine.

The purpose of the present study is to develop an easy and effective one-step pyrolytic method for synthesizing carbon dots (CDs) derived from folic acid (FA), denoted herein as FACDs. This method is green, inexpensive, and simplifies the synthesis of fluorescent carbon nanomaterials with enhanced and stable fluorescence. Moreover, the as-prepared FACDs are effective in the sensitive and selective detection of cysteine (Cys) by such a "turn-on" mechanism of fluorescence.

Harnessing natural light: Novel nanoheterojunction photocatalyst NaGdF:Yb,Tm@TiO/Cu(OH)CO for actual wastewater remediation.

This study introduces NaGdF:Yb,Tm@TiO/Cu(OH)CO (UTCu), an innovative nanophotocatalyst designed to address global energy crises and water contamination issues. Our developed photocatalyst, NaGdF:Yb,Tm@TiO/0.5mol%Cu(OH)CO (UTCu0.

Identification biomarkers in disease progression of obstructive sleep apnea from children serum based on WGCNA and Mfuzz.

Obstructive sleep apnea (OSA) syndrome is a prevalent form of respiratory sleep disorder, with an increasing prevalence among children. The consequences of OSA include obesity, diabetes, cardiovascular disease, and neuropsychological diseases. Despite its pervasive impact, a significant proportion of individuals especially children remain unaware that they suffer from OSA.