Black phosphorus quantum dots induce lipid accumulation through PPARγ activation and mitochondrial dysfunction in adipocytes.

Black phosphorus quantum dots (BPQDs) are believed to have broad prospects for application. Obesity has garnered significant attention, but the association between BPQDs and lipid metabolism has not been thoroughly investigated. Mice were orally exposed to BPQDs at doses of 0.

Transcriptome Analysis Revealed the Anabolic Regulation of Chlorophyll and Carotenoids in Curcuma alismatifolia Bracts.

Curcuma alismatifolia is an attractive ornamental plant in the ginger family. Its bracts come in a variety of colors and are commonly used as cut flowers, potted plants, and landscaping. To investigate the regulation of bract pigmentation in C.

Metabolomic and transcriptomic analyses reveal the mechanism of polysaccharide and secondary metabolite biosynthesis in Bletilla striata tubers in response to shading.

Polysaccharides and various secondary metabolites are the major bioactive ingredients in Bletilla striata tubers and their biosynthesis and accumulation are influenced by light intensity. However, the mechanisms underlying shading effects remain largely unknown. In the present study, we used a combined analysis of the physiology, metabolome, and transcriptome to investigate the physiological activities and bioactive component accumulation of B.

Clinical characteristics, treatment and prognosis of children with SARS-CoV-2 infection complicated with severe neurological dysfunctions in Foshan, China.

Objective: To analyze the clinical characteristics, treatment, and prognosis of children infected with SARS-CoV-2 following the adjustment of COVID-19 prevention and control policies in China in December 2022.

Methods: A retrospective study was conducted on 9 cases of severe neurological dysfunction caused by SARS-CoV-2 infection in children admitted to Foshan First People's Hospital from December 17 to 31, 2022.

Results: Among the 9 cases, 7 (71.

Toxic epidermal necrolysis complicated with respiratory failure in children: A case report.

Stevens-Johnson syndrome or toxic epidermal necrolysis (TEN) is a severe skin and mucosal reaction that develops rapidly and has a high mortality rate. Its early identification and proper treatment are crucial to lowering the risk of death. Severe TEN can also lead to acute respiratory failure.

Amorphous Ultra-Small Fe-Based Nanocluster Engineered and ICG Loaded Organo-Mesoporous Silica for GSH Depletion and Photothermal-Chemodynamic Synergistic Therapy.

Intracellular oxidative amplification can effectively destroy tumor cells. Additionally, Fe-mediated Fenton reaction often converts cytoplasm H O to generate extensive hypertoxic hydroxyl radical ( OH), leading to irreversible mitochondrion damage for tumor celleradication, which is widely famous as tumor chemodynamic therapy (CDT). Unfortunately, intracellular overexpressed glutathione (GSH) always efficiently scavenges OH, resulting in the significantly reduced CDT effect.

Mesoporous Polydopamine-Based Nanovehicles as a Versatile Drug Loading Platform to Enable Tumor-Sufficient Synergistic Therapy.

The combination of photothermal therapy and chemotherapy are developing as a promising clinical strategy but it urgently needs the high exploration of intelligent multifunctional drug delivery nanovectors. In this paper, we used a versatile method to construct mesoporous polydopamine nanovehicles (MPDA) with the dendritic mesopores loaded with a clinical chemotherapeutic drug, Doxorubicin (MPDA@DOX). The monodisperse nanoagents are spherical with a size of ∼160 nm and pore size of approximately 10 nm.

Evaluating an external quality assurance program for semen analysis in China during 2009-2020.

Introduction: Semen analysis (SA) plays a key role in guiding treatments of male reproductive diseases and infertility due to male factors; however, it remains challenging to conduct an accurate SA due to lack of standardization, highly subjective assessments, and problems with automated procedures. Therefore, quality assurance (QA) and teaching courses are essential for making the laboratory results more consistent.

Materials And Methods: The external quality assurance (EQA) scheme was organized by national human sperm bank technology training bases in Guangdong province in China between 2009 and 2020.

The Chain-Mediation Pathway of Social Avoidance to Depression in College Students Is Regulated by Self-Esteem.

Objective: Here, we investigated the relationship between social avoidance and depression in college students, explored the mediating roles of loneliness and trust, and the regulatory role of self-esteem, to provide a theoretical intervention approach based on internal mechanisms.

Methods: Using a simple random overall sampling method, 1,021 college students were investigated using self-rating depression, social avoidance and distress, loneliness, interpersonal trust and self-esteem scales.

Results: There was a significant positive correlation between social avoidance and depression.

A Sequential Dual-Model Strategy Based on Photoactivatable Metallopolymer for On-Demand Release of Photosensitizers and Anticancer Drugs.

The synergistic combination of chemotherapy and photodynamic therapy has attracted considerable attention for its enhanced antitumoral effects; however, it remains challenging to successfully delivery photosensitizers and anticancer drugs while minimizing drug leakage at off-target sites. A red-light-activatable metallopolymer, Poly(Ru/PTX), is synthesized for combined chemo-photodynamic therapy. The polymer has a biodegradable backbone that contains a photosensitizer Ru complex and the anticancer drug paclitaxel (PTX) via a singlet oxygen ( O ) cleavable linker.

Virus-like mesoporous silica-coated plasmonic Ag nanocube with strong bacteria adhesion for diabetic wound ulcer healing.

The Gram-positive bacterium Staphylococcus aureus (MRSA) and the Gram-negative bacillus Escherichia coli (E. coli) can be commonly found in diabetic foot ulcers. However, the multi-drug resistant pathogenic bacteria infection is often difficult to eradicate by the conventional antibiotics and easy to spread which can lead to complications such as gangrene or sepsis.

The fluid management and hemodynamic characteristics of PiCCO employed on young children with severe hand, foot, and mouth disease-a retrospective study.

Background: Hand, foot, and mouth disease (HFMD) is an acute infectious disease caused by human enterovirus 71 (EV71), coxsackievirus, or echovirus, which is particularly common in preschool children. Severe HFMD is prone to cause pulmonary edema before progressing to respiratory and circulatory failure; thus hemodynamic monitoring and fluid management are important to the treatment process.

Methods: We did a review of young patients who had been successfully treated in our department for severe HFMD, which had been caused by EV71.

Influence of sperm morphology on pregnancy outcome and offspring in fertilization and intracytoplasmic sperm injection: a matched case-control study.

Sperm morphology was once believed as one of the most predictive indicators of pregnancy outcome in assisted reproductive technology (ART). However, the impact of teratozoospermia on in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) outcomes and its offspring remains inconclusive. In order to evaluate the influence of teratozoospermia on pregnancy outcome and newborn status after IVF and ICSI, a retrospective study was conducted.

Vitamin D protects against necrotising enterocolitis in newborn mice by activating the ERK signalling pathway.

Necrotising enterocolitis (NEC) is a serious intestinal disease that occurs in the neonatal period. The present study aimed to investigate the protective effect of vitamin D on NEC and the underlying mechanisms. Artificial feeding and hypoxia‑cold stimulation were used to establish a mouse NEC model.

Fabrication of hypoxia-responsive and uperconversion nanoparticles-modified RBC micro-vehicles for oxygen delivery and chemotherapy enhancement.

Solid tumor cells in hypoxic regions resist chemotherapy treatment with conventional antitumor drugs (such as paclitaxel, PTX) because the inadequate O attenuates the intracellular generation of reactive oxygen species (ROS) and upregulates multidrug resistance protein expression. Hyperbaric O therapy concentrates on improving O delivery to the hypoxic tumor area, thereby enhancing the sensitivity of cancer cells to chemotherapy drugs. However, the implementation of this therapy often elicits immune response or potentiates toxicity of the drugs toward normal cells.

Novel micro-straw for freezing small quantities of human spermatozoa.

Objective: To evaluate a novel micro-straw as an efficient, simple method for freezing a small number of human spermatozoa for intracytoplasmic sperm injection (ICSI).

Design: Prospective cohort study.

Setting: Sperm bank.

Clinical characteristics of acute respiratory syndrome with SARS-CoV-2 infection in children in South China.

Background: A retrospective study was conducted to summarize the clinical information of childhood infections during the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic.

Methods: Children with SARS-CoV-2 infection in 11 hospitals from three provinces of South China were included in the study. Clinical information was collected and compared with children and adults infected by SARS-CoV-2 in Wuhan.