mC related-regulator-mediated methylation modification patterns and prognostic significance in breast cancer.

5-Methylcytosine (mC) is closely associated with cancer. However, the role of mC in breast cancer(BC)remains unclear. This study combined single-cell RNA sequencing (scRNA-Seq) and transcriptomics datasets to screen mC regulators associated with BC progression and analyze their clinical values.

Coaching to develop leadership of healthcare managers: a mixed-methods systematic review.

Introduction: Coaching is commonly used to facilitate leadership development among healthcare managers. However, there is limited knowledge of the components of coaching interventions and their impacts on healthcare managers' leadership development. This mixed-methods systematic review aimed to synthesize evidence of coaching to develop leadership among healthcare managers.

Prognosis and treatment regimens for patients with different lymph node statuses in locally advanced cervical cancer.

Objective: The survival outcomes of Stage IIIC1 in FIGO 2018 showed significant heterogeneity and it seems unreasonable to administer a uniform treatment regimen for Stage IIIC1 patients. This study aimed to assess the survival outcomes among patients with locally advanced cervical cancer based on various lymph node statuses, T-stage classifications, and treatment modalities.

Methods: This is a population-based cohort study utilizing the Surveillance, Epidemiology, and End Results Program from 2004 to 2018.

Integrated analysis of single-cell RNA-seq and bulk RNA-seq reveals mediated expression patterns by distinct tumor microenvironment immune profiles in cervical cancer.

Few studies have analyzed the effect of () expression patterns on the tumor microenvironment (TME) during development of cervical cancer (CC). We elucidated the landscape and score of expression in CC using single-cell RNA sequencing (scRNA-seq) and RNA sequencing datasets. Further, we aimed the MMPscore to probe the infiltration of immune cells.

Value-Added Upcycling of PET to 1,4-Cyclohexanedimethanol by a Hydrogenation/Hydrogenolysis Relay Catalysis.

We present an innovative process for directly transforming poly(ethylene terephthalate) (PET), a polymer extensively used in food and beverage packaging, into trans-isomer-enriched 1,4-cyclohexanedimethanol (CHDM), a key ingredient in advanced specialty polymers. Our approach leverages a dual-catalyst system featuring palladium on reduced graphene oxide (Pd/r-GO) and oxalate-gel-derived copper-zinc oxide (og-CuZn), utilizing hydrogenation/hydrogenolysis relay catalysis. This method efficiently transforms PET into polyethylene-1,4-cyclohexanedicarboxylate (PECHD), which is then converted into CHDM with an impressive overall yield of 95 % in a two-stage process.

Emerging roles of hydrogel in promoting periodontal tissue regeneration and repairing bone defect.

Periodontal disease is the most common type of oral disease. Periodontal bone defect is the clinical outcome of advanced periodontal disease, which seriously affects the quality of life of patients. Promoting periodontal tissue regeneration and repairing periodontal bone defects is the ultimate treatment goal for periodontal disease, but the means and methods are very limited.

Radiation-induced bone loss in mice is ameliorated by inhibition of HIF-2α in skeletal progenitor cells.

Radiotherapy remains a common treatment modality for cancer despite skeletal complications. However, there are currently no effective treatments for radiation-induced bone loss, and the consequences of radiotherapy on skeletal progenitor cell (SPC) survival and function remain unclear. After radiation, leptin receptor-expressing cells, which include a population of SPCs, become localized to hypoxic regions of the bone and stabilize the transcription factor hypoxia-inducible factor-2α (HIF-2α), thus suggesting a role for HIF-2α in the skeletal response to radiation.

Upgrading Waste Polylactide via Catalyst-Controlled Tandem Hydrolysis-Oxidation.

As plastic waste pollution continues to pose significant challenges to our environment, it is crucial to develop eco-friendly processes that can transform plastic waste into valuable chemical products in line with the principles of green chemistry. One major challenge is breaking down plastic waste into economically valuable carbon resources. This however presents an opportunity for sustainable circular economies.

Utilizing Low Oxygen Tension to Reduce Hematopoietic Cells in Murine Bone Marrow Stromal Cell Cultures.

Currently, there remains a lack of universally accepted markers to prospectively isolate a homogeneous population of skeletal stem cells (SSCs). For this reason, BMSCs, which support hematopoiesis and contribute to all the functions of the skeleton, continue to be widely used to study multipotent mesenchymal progenitors (MMPs) and to infer SSC function. Moreover, given the breadth of transgenic murine models used to study musculoskeletal diseases, the use of BMSCs also serves as a powerful tool to examine the molecular mechanisms regulating MMPs and SSCs.

Nitrogen-Neighbored Single-Cobalt Sites Enable Heterogeneous Oxidase-Type Catalysis.

The development of biomimetic catalytic systems that can imitate or even surpass natural enzymes remains an ongoing challenge, especially for bioinspired syntheses that can access non-natural reactions. Here, we show how an all-inorganic biomimetic system bearing robust nitrogen-neighbored single-cobalt site/pyridinic-N site (Co-N/Py-N) pairs can act cooperatively as an oxidase mimic, which renders an engaged coupling of oxygen (O) reduction with synthetically beneficial chemical transformations. By developing this broadly applicable platform, the scalable synthesis of greater than 100 industrially and pharmaceutically appealing O-silylated compounds including silanols, borasiloxanes, and silyl ethers via the unprecedented aerobic oxidation of hydrosilane under ambient conditions is demonstrated.

Hypertrophic chondrocytes serve as a reservoir for marrow-associated skeletal stem and progenitor cells, osteoblasts, and adipocytes during skeletal development.

Hypertrophic chondrocytes give rise to osteoblasts during skeletal development; however, the process by which these non-mitotic cells make this transition is not well understood. Prior studies have also suggested that skeletal stem and progenitor cells (SSPCs) localize to the surrounding periosteum and serve as a major source of marrow-associated SSPCs, osteoblasts, osteocytes, and adipocytes during skeletal development. To further understand the cell transition process by which hypertrophic chondrocytes contribute to osteoblasts or other marrow associated cells, we utilized inducible and constitutive hypertrophic chondrocyte lineage tracing and reporter mouse models ( and ) in combination with a transgenic line, single-cell RNA-sequencing, bulk RNA-sequencing, immunofluorescence staining, and cell transplantation assays.

silencing inhibits ovarian carcinoma progression and oncogenic activity and .

Background: Among all gynecological malignancies, ovarian cancer (OC) is prone to recurrence, metastasis, and resistance, and has the highest mortality rate. Furthermore, China is about to face the risk of increased incidence of the disease. This study aimed to identify potential novel tumorigenesis and prognostic genes in OC.

Hypoxia depletes contaminating CD45 hematopoietic cells from murine bone marrow stromal cell (BMSC) cultures: Methods for BMSC culture purification.

Culture expanded bone marrow stromal cells (BMSCs) are easily isolated, can be grown rapidly en masse, and contain both skeletal stem cells (SSCs) and multipotent mesenchymal progenitors (MMPs). Despite this functional heterogeneity, BMSCs continue to be utilized for many applications due to the lack of definitive and universally accepted markers to prospectively identify and purify SSCs. Isolation is widely based on adherence to tissue culture plastic; however, high hematopoietic contamination is a significant impediment in murine models.

Detection of Hypoxic Regions in the Bone Microenvironment.

Oxygen serves as a critical environmental factor essential for maintaining the physiological state of a tissue. Hypoxia, or low oxygen, triggers a cascade of events which allows for cells to adapt to low oxygen tensions and to facilitate oxygen delivery required to maintain tissue homeostasis. In the bone microenvironment (BME), vascular heterogeneity, poor perfusion rates of blood vessels, and high metabolic activity of hematopoietic cells result in the generation of a unique hypoxic landscape.

Evolution of ocular defects in infant macaques following in utero Zika virus infection.

Congenital Zika syndrome (CZS) is associated with microcephaly and various neurological, musculoskeletal, and ocular abnormalities, but the long-term pathogenesis and postnatal progression of ocular defects in infants are not well characterized. Rhesus macaques are superior to rodents as models of CZS because they are natural hosts of the virus and share similar immune and ocular characteristics, including blood-retinal barrier characteristics and the unique presence of a macula. Using a previously described model of CZS, we infected pregnant rhesus macaques with Zika virus (ZIKV) during the late first trimester and characterized postnatal ocular development and evolution of ocular defects in 2 infant macaques over 2 years.

A rings-in-pores net: crown ether-based covalent organic frameworks for phase-transfer catalysis.

We herein present a new family of crown ether-based covalent organic frameworks (CE-COFs) for the first time. The CE-COFs show excellent phase-transfer catalytic performance in various nucleophilic substitution reactions.

Chronic memantine decreases nicotine self-administration in rats.

Neurobehavioral bases of tobacco addiction and nicotine reinforcement are complex, involving more than only nicotinic cholinergic or dopaminergic systems. Memantine is an NMDA glutamate antagonist used to improve cognitive function in people with Alzheimer's disease. Glutamate may be an important component of the reinforcing effects of nicotine, so memantine was evaluated as a potential smoking cessation aid.

Efficient and Recyclable RuCl ⋅ 3HO Catalyst Modified with Ionic Diphosphine for the Alkoxycarbonylation of Aryl Halides.

A series of ionic (mono-/di-)phosphines (, , and ) with structural similarity and their corresponding neutral counterparts (, , and ) were applied to modulate the catalytic performance of RuCl ⋅ 3HO. With the involvement of the ionic diphosphine (), in which the two phosphino-fragments were linked by butylene group, RuCl ⋅ 3HO with advantages of low cost, robustness, and good availability was found to be an efficient and recyclable catalyst for the alkoxycarbonylation of aryl halides. The -based RuCl ⋅ 3HO system corresponded to the best conversion of PhI (96 %) along with 99 % selectivity to the target product of methyl benzoate as well as the good generality to alkoxycarbonylation of different aryl halides (ArX, X=I and Br) with alcohols MeOH, EtOH, -PrOH and -BuOH.

Intact perceptual ability, but impaired familiarity judgment, after neonatal perirhinal lesions in rhesus macaques.

The perirhinal cortex is known to support high-level perceptual abilities as well as familiarity judgments that may affect recognition memory. We tested whether poor perceptual abilities or a loss of familiarity judgment contributed to the recognition memory impairments reported earlier in monkeys with PRh lesions received in infancy (Neo-PRh) (Weiss and Bachevalier, 2016; Zeamer et al., 2015).

[Distribution Characteristics of Water-soluble Ions in Size-segregated Particulate Matters in Taiyuan].

The distributions of size-segregated particles (PM) and water-soluble ions (WSIs) in Taiyuan were studied from July 2014 to April 2015 by TE-235 aerosol sampling and ion chromatography analyzing. As the results shown, the daily PM level was 173.7 μg·m, which exceeded the Grade Ⅱ limitation value in the Ambient Air Quality Standard (150 μg·m, GB 3095-2012).