Association of Occupational Noise Exposure and Extended High-Frequency Hearing Loss in Young Workers With Normal Hearing.

Objectives: Studies on the relationship between occupational noise exposure and extended high-frequency (EHF) hearing loss are limited. This study investigated the relationship between occupational noise exposure and EHF hearing loss in workers exposed to noise as measured by sound pressure level, exposure duration, and kurtosis to help provide a basis for early detection and prevention of hearing loss in noise-exposed workers.

Design: A cross-sectional survey was conducted among 602 participants with 472 noise-exposed workers and 130 non-noise-exposed controls.

Cadmium biphasically impacts the adaptive immune system via regulating mitochondrial activation of hematopoietic stem cells in mice.

Cadmium (Cd) is a highly toxic metal in human body, and therefore understanding the immunotoxicity of Cd is significant for public health. The aim of this study was to investigate the role of hematopoietic stem cells (HSC) in regulating the immunotoxicity of Cd. After exposure to 10 ppm Cd via drinking water for up to 9 months, C57BL/6 mice had a suppressed adaptive immune system at day 135 but had an enhanced adaptive immune system at day 270 during Cd exposure.

[Characteristics of Cd, As, and Pb Pollution in Farmland Soil and Edible Parts of Chili Pepper and Sweet Potato and Their Health Risk Assessment].

To clarify the characteristics of Cd, As, and Pb concentrations in edible parts of crops and farmland soils, a key farmland survey was conducted on the field scale to investigate the characteristics of Cd, As, and Pb in soil and chili pepper （edible parts in the above-ground section） and sweet potato （edible parts under the ground） and assess the health risk of Cd-As-Pb in edible parts of chili pepper and sweet potato to humans in the typical co-contaminated agricultural soils by Cd, As, and Pb from metal smelting and sewage irrigation in North China. The results showed that the agricultural soil from chili pepper and sweet potato fields was co-contaminated by Cd and As at a moderate pollution level. The combined pollution index （2.

Association between polymorphisms of glucagon-like peptide-1 receptor gene and susceptibility to osteoporosis in Chinese postmenopausal women.

Background: The influence of the glucagon-like peptide-1 receptor (GLP-1R) on bone metabolism is well-established. However, it has been observed that single nucleotide polymorphisms (SNPs) in the GLP-1R gene can partially affect its function. Therefore, this study aims to investigate the association between SNPs in the GLP-1R gene and postmenopausal osteoporosis (PMOP) within the Chinese Han population.

Cold scissors ploughing technique versus electrosurgical excision for hysteroscopic adhesiolysis: a multicenter randomized controlled trial.

Intrauterine adhesions (IUA) may lead to abnormal menstruation, infertility, and pregnancy-related complications. Hysteroscopic separation is the gold standard treatment for IUA and can be performed using a variety of instruments and methods, including cold scissors and electrotomy. However, it is unclear which method is more effective for relieving IUA, restoring uterine anatomy, and improving the pregnancy rate in women of childbearing age.