Gas-phase and PM-bound phthalates in nail salons: characteristics, exposure via inhalation, and influencing factors.

This study aimed to investigate the characteristics of, exposure to, and factors influencing gas-phase and PM-bound phthalates (PAEs) in nail salons. Data on both indoor and outdoor gas-phase and PM-bound PAEs, carbon dioxide (CO), temperature, and relative humidity were collected in nail salons. We also used questionnaires to survey building characteristics and occupants' behaviors.

Characteristics and influencing factors of airborne microplastics in nail salons.

Airborne microplastic particles (MPs) are emerging contaminants. Although some studies have investigated the characteristics of indoor MPs in homes or offices, information regarding MPs in nail salons with potentially higher MP pollution is unavailable. In this study, we collected indoor and outdoor air samples from nail salons to analyze the concentrations, physical characteristics, and polymers of MPs and further assessed the exposure through inhalation and influencing factors.

Lactoferrin Induces Osteoblast Growth through IGF-1R.

Objectives. To investigate the role of the IGF-1R by which lactoferrin induces osteoblast growth. Methods.

Lactoferrin promote primary rat osteoblast proliferation and differentiation via up-regulation of insulin-like growth factor-1 expression.

The aim of this study was to explore the effect of lactoferrin (LF) in primary fetal rat osteoblasts proliferation and differentiation and investigate the underlying molecular mechanisms. Primary rat osteoblasts were obtained from the calvarias of neonatal rats. Osteoblasts were treated with LF (0.

Lactoferrin inhibits apoptosis through insulin-like growth factor I in primary rat osteoblasts.

Aim: Excessive apoptosis of osteoblasts is the major cause of low bone mass, and bovine lactoferrin (bLF), an iron-binding glycoprotein, might protect osteoblastic cells from apoptosis induced by serum withdrawal. The aim of this study was to elucidate the mechanisms underlying the anti-apoptotic action of bLF in rat osteoblasts in vitro.

Methods: Primary rat osteoblasts were incubated in the presence of varying concentrations of bLF for 24 h.