Publications by authors named "Qian Fei"

Background: Age-related reproductive aging is a natural and irreversible physiological process, and delaying childbearing is increasingly common all over the world. Transplantation of mesenchymal stem cells (MSCs) is considered a new and effective therapy to restore ovarian function, but the relevant mechanisms remain unclear. Recently, it has been found that there is a local Renin-angiotensin system (RAS) in human ovary and it plays a key role.

View Article and Find Full Text PDF

Dental implants with different primary stabilities give rise to distinct stress distributions at the implant-bone interface after placement and exert mechanical force on the cells in the bone tissue. This study aimed to investigate whether the mechanical forces in peri-implant bone participate in the body's immune response and influence macrophage polarization. Therefore, an in vivo rat implantation model with different primary implant stabilities was established.

View Article and Find Full Text PDF

Background: Lumbar spinal epidural lipomatosis (SEL) is a rare condition characterized by the pathological proliferation of adipose tissue in the epidural space of the spinal canal. This study presents the case of a 59-year-old male with lumbar SEL treated effectively in the short term through arthroscopic-assisted uniportal spinal surgery (AUSS) combined with a modified circle-drawing unilateral laminotomy with bilateral decompression (ULBD) technique.

Methods: A modified circle-drawing ULBD procedure was executed via AUSS for a patient with SEL.

View Article and Find Full Text PDF

Accurately controlling the product selectivity in syngas conversion, especially increasing the olefin selectivity while minimizing C1 byproducts, remains a significant challenge. Epsilon FeC is deemed a promising candidate catalyst due to its inherently low CO selectivity, but its use is hindered by its poor high-temperature stability. Herein, we report the successful synthesis of highly stable ε-FeC through a N-induced strategy utilizing pyrolysis of Prussian blue analogs (PBAs).

View Article and Find Full Text PDF

Background: Nonalcoholic fatty liver disease (NAFLD) is a common chronic liver disease with few therapeutic options currently available. Traditional Chinese medicine has been used for thousands of years and exhibited remarkable advantages against such complicated disease for its "multi-component, multi-target and multi-pathway" characteristics. Compound Shouwu Jiangzhi Granule (CSJG) is a clinical empirical prescription for the treatment of NAFLD, but its pharmacological mechanism remains unknown.

View Article and Find Full Text PDF

In this study, a really simple and efficient catalytic protocol for the construction of quinazolines from alcohol and diamine has been developed based on CuCoAl layered double hydroxide (CuCoAl-LDH). The developed CuCoAl-LDH catalyst could accelerate the cascade reactions without any additives and tolerate various alcohols with satisfactory yields. Cooperation between the Cu and Cu species in CuCoAl-LDH was observed in the cascade reaction, and they are believed to be responsible for the oxidation of alcohol and dehydrogenation of the intermediate, respectively.

View Article and Find Full Text PDF

Lung cancer stands as the most prevalent form of cancer globally, posing a significant threat to human well-being. Due to the lack of effective and accurate early diagnostic methods, many patients are diagnosed with advanced lung cancer. Although surgical resection is still a potential means of eradicating lung cancer, patients with advanced lung cancer usually miss the best chance for surgical treatment, and even after surgical resection patients may still experience tumor recurrence.

View Article and Find Full Text PDF

Background: Leukopenia could be induced by chemotherapy, which leads to bone marrow suppression and even affects the therapeutic progression of cancer. Qijiao Shengbai Capsule (QSC) has been used for the treatment of leukopenia in clinic, but its bioactive components and mechanisms have not yet been elucidated clearly.

Purpose: This study aimed to elucidate the molecular mechanisms of QSC in treating leukopenia.

View Article and Find Full Text PDF

Atopic dermatitis is a chronic relapsing skin disease characterized by recurrent, pruritic, localized eczema, while PDE4 inhibitors have been reported to be effective as antiatopic dermatitis agents. 3',4--dimethylcedrusin (DCN) is a natural dihydrobenzofuran neolignan isolated from with moderate potency against PDE4 (IC = 3.26 ± 0.

View Article and Find Full Text PDF

Premature ovarian insufficiency (POI) is a serious disease significantly affecting the physical and mental health of women of reproductive age, not just impacting fertility outcomes. Ovarian damage due to chemotherapy remains a major cause of this condition. Recent studies have indicated the involvement of the long non-coding RNA HOTAIR in the progression of various diseases, showcasing important biological functions, yet its role in POI remains unclear.

View Article and Find Full Text PDF

The etiology of polycystic ovary syndrome (PCOS) is complex and variable, and there is no exact cause or good treatment method. Most of the methods of hormones are used to temporarily meet the needs of patients. Experimental evidence has shown that trehalose has, anti-apoptotic, anti-oxidative, glucose-lowering, and insulin resistance effects.

View Article and Find Full Text PDF

Regulated cell death (RCD) is considered a critical pathway in cancer therapy, contributing to eliminating cancer cells and influencing treatment outcomes. The application of RCD in cancer treatment is marked by its potential in targeted therapy and immunotherapy. As a type of RCD, PANoptosis has emerged as a unique form of programmed cell death (PCD) characterized by features of pyroptosis, apoptosis, and necroptosis but cannot be fully explained by any of these pathways alone.

View Article and Find Full Text PDF
Article Synopsis
  • This study examined the effects of anodic oxidation on the surface of high oxygen concentration titanium (HOC-Ti) to create a micro/nano composite structure and evaluated its suitability as a dental implant material.
  • The modified surface (HOC-NT) showed excellent hydrophilicity and surface roughness, leading to improved biocompatibility when tested with specific cell lines in both in vitro and in vivo settings.
  • Results indicated accelerated bone formation and stable integration of HOC-NT implants, highlighting their potential for successful application in dental implants due to enhanced physicochemical and biological properties.
View Article and Find Full Text PDF

Surface and interface engineering of composite photocatalysts are effective ways to enhance the dynamics of photo-generated charge carriers. In this work, SrTiO/TiC MXene (STO/TC) Schottky heterojunction is constructed by in-situ growth of SrTiO (STO) on TiC MXene (TC) through Sr(OH) etching the surfaces of TC. This in-situ growth strategy not only creates the tight chemically bonded interfaces by SrTiO nanoparticles uniformly anchoring on the surface of two-dimensional TiC MXene nanosheets for promoting the photo-generated charge carrier separation, but also introduces surface Ti vacancies as the efficient catalytic active sites to accelerate the charge carrier transfer process for efficient hydrogen production.

View Article and Find Full Text PDF

Objective: The COVID-19 pandemic has been the most serious public health emergency encountered in modern assisted reproductive technology (ART) development. In order to identify lessons learned, this study reviews the effect of the pandemic on ART institutions and human sperm banks in China, and summarizes the experiences and reflections of Chinese scholars post-pandemic era.

Methods: This review is based on multiple consensus statements on the COVID-19 pandemic issued by Chinese experts as well as current national regulations and principles in ART institutions and human sperm banks to document the current situation of ART services in China, describe the impact of the pandemic on these services, and offer Chinese reflections on worrying issues in the post-pandemic era.

View Article and Find Full Text PDF

The existence of excessive tetracycline hydrochloride (TCH) in the ecological environment has seriously threatened human health, so there is an urgent need to develop a high-performance photocatalyst that can efficiently and greenly remove TCH. Currently, most photocatalysts have the problems of fast recombination of photogenerated charge carriers and low degradation efficiency. Herein, S-scheme AgI/BiOI (AB) heterojunctions was constructed for TCH removal.

View Article and Find Full Text PDF

ZnInS (ZIS) is widely used in the field of photocatalytic hydrogen production due to its unique photoelectric properties. Nonetheless, the photocatalytic performance of ZIS usually faces problems of poor conductivity and rapid recombination of charge carriers. Heteroatom doping is often regarded as one of the effective strategies for improving the catalytic activity of photocatalysts.

View Article and Find Full Text PDF

Objective: The aim of this retrospective study was to evaluate the prevalence of taurodontism in a group of adult dental patients in Northwest China with the aid of cone-beam computed tomography (CBCT).

Methods: This study used Shifman and Chanannel's criteria to statistically analyze the prevalence of taurodontism in the premolars and molars of the Chinese population. CBCT images of 5488 teeth from 580 subjects of Chinese origin were evaluated.

View Article and Find Full Text PDF

Stroke, the second common cause of death in the world, is commonly considered to the well-known phenomenon of diaschisis. After stroke, regions far from the lesion can show altered neural activity. However, the comprehensive treatment recovery mechanism of acute ischemic stroke remains unclear.

View Article and Find Full Text PDF

ZnO/TiO catalysts with different ZnO contents have been prepared through equal volume impregnation method, characterized by XRD, SEM, Py-IR, ICP, XPS, NH-TPD and N adsorption/desorption, and evaluated in the synthesis of polycarbonate diol (PCDL) through transesterification. The results showed that titanium zinc oxide formed in these catalysts, and the content of acidic sites varied with the ZnO content, and ZnO/TiO (10%) has the highest acid amount. The ZnO/TiO (20%) with medium acidic sites showed the highest catalytic activity.

View Article and Find Full Text PDF

Several previous studies have shown that oral microbial disorders may be closely related to the occurrence and development of type 2 diabetes mellitus (T2DM). However, whether the function of oral microorganisms and their metabolites have changed in patients with T2DM who have not suffered from any oral diseases has not been reported. We performed metagenomic analyses and nontargeted metabolic analysis of saliva and supragingival plaque samples from patients with T2DM who have not suffered any oral diseases and normal controls.

View Article and Find Full Text PDF

Harmful algal blooms (HABs) have frequently occurred worldwide, causing marine ecosystems and human health risks. As an advanced and green oxidation technology, photocatalysis has potential to remove red tide algae using solar energy. Herein, in this work, Z-scheme photocatalysts of AgPO/g-CN (APCN) floating foam with different mass ratios were fabricated for the algae inactivation.

View Article and Find Full Text PDF

The dried flower buds of Pamp (herbal name, Xin-Yi) are a traditional Chinese medicine with a long history of clinical use in the treatment of allergic rhinitis and sinusitis. However, the constituents responsible for its antiallergic effects remain clearly unidentified. In the present study, totally 33 lignans were obtained from .

View Article and Find Full Text PDF

Two new lignans (1-2) and a new octaketide (12), together with twenty-nine known compounds (3-11, 13-32) were isolated and identified from the aerial part of Pogostemon cablin. Their chemical structures were revealed mainly through NMR and MS data. The absolute configuration of 1 and 2 was deduced by comparing its experimental CD with the calculated ECD spectra.

View Article and Find Full Text PDF