Publications by authors named "Dongdong Qi"

Schizophrenia (SCZ) is a severe mental disorder with significant impacts on individuals, families, and society. Previous research has indicated that SCZ patients will commonly face substantial impairments in mitochondrial function and oxidative phosphorylation in the brain. Cell-free DNA (cf-DNA), serving as a direct biomarker of apoptosis, offers a valuable vantage point to understand the complex cellular mechanisms underlying SCZ.

View Article and Find Full Text PDF

Autophagy and apoplastic ascorbic acid (AsA) play important roles in plant drought tolerance. However, the trans-plasma membrane transport of AsA and its association with autophagy during drought stress are unclear. Here we report an AsA-induced autophagy pathway in plants, wherein plasma-membrane-located cytochrome b561 and DOMON domain (CYBDOM) proteins play positive roles.

View Article and Find Full Text PDF

Hydrogen peroxide (HO) is a vital industrial chemical extensively utilized in textiles, pharmaceuticals, and disinfection. Solar-driven photocatalytic technology depending on photocatalysts with matched energy band structure for simultaneously driving both O reduction and water oxidation half-reactions, without necessary use of any sacrificial agent, enables green HO synthesis from O and/or HO, offering a low-energy and simple-operation process without secondary pollution while avoiding safety and environmental risk of conventional methods. Herein, a novel acylhydrazone-linked 2D COF, COF-S-OH, was prepared from benzo[1,2-b:3,4-b':5,6-b'']trithiophene-2,5,8-tricarbaldehyde and 2,3-dihydroxysuccinohydrazide.

View Article and Find Full Text PDF

Schizophrenia, a pervasive mental health condition, poses a global challenge to individual well-being. The intricate interplay of schizophrenia with the aging process is characterized by a shortened lifespan, underscoring the urgent need for an in-depth exploration of the underlying biological mechanisms that contribute to the unique aging trajectory within this specific patient population. Currently, this crucial aspect remains largely unexplored.

View Article and Find Full Text PDF

Developing catalysts for electrocatalytic CO to CHOH still faces great challenge due to the involvement of multiple proton-coupled electron transfer (PCET) processes. Molecular phthalocyanine electrocatalysts on carbon nanotubes have achieved production of methanol as the sole liquid-phase product but with the activity and stability far from meeting industrial demands. Herein, phthalocyaninato cobalt is fabricated into covalent organic frameworks PE-COF via polymerization with ellagic acid.

View Article and Find Full Text PDF

Background: Limited research examining the relationship between cardiovascular comorbidities and psychological anxiety & depression in the elderly, and the conclusions are inconsistent. This study aimed to investigate the intricate relationships between them among the pariticipants aged 60 years and above.

Methods: Utilizing multivariate logistic regression and stratified analysis to analyze the association between cardiovascular comorbidities and psychological anxiety & depression.

View Article and Find Full Text PDF

Artificial photosynthesis of urea from NH and CO seems to remain still essentially unexplored. Herein, three isomorphic three-dimensional covalent organic frameworks with twofold interpenetrated ffc topology are functionalized by benzene, pyrazine, and tetrazine active moieties, respectively. A series of experiment results disclose the gradually enhanced conductivity, light-harvesting capacity, photogenerated carrier separation efficiency, and co-adsorption capacity towards NH and CO in the order of benzene-, pyrazine-, and tetrazine-containing framework.

View Article and Find Full Text PDF

Constructing 3D functional covalent organic frameworks (COFs) with both robust linkage and planar macrocycle building blocks still remains a challenge due to the difficulty in adjusting both the crystallinity and the dominant 2D structures. In addition, it is also challenging to selectively convert inert C(sp)-H bonds into value-added chemicals. Herein, robust 3D COFs, USTB-28-M (M=Co, Ni, Cu), have been polymerized from the nucleophilic aromatic substitution reaction of -symmetric 2,3,6,7,14,15-hexahydroxyltriptycene with -symmetric hexadecafluorophthalocyanine (MPcF) under solvothermal conditions.

View Article and Find Full Text PDF
Article Synopsis
  • The study explores the co-assemblies of covalent organic frameworks (COFs) with metal porphyrins to enhance photocatalytic performance.
  • COF/porphyrin composites were created at room temperature, demonstrating how COF surfaces can influence the aggregation of porphyrins.
  • Results showed that despite having lower porphyrin loading, COF/NiTCPP achieved the highest photocatalytic H evolution rate compared to other porphyrin combinations, highlighting a new avenue for developing efficient photocatalysts.
View Article and Find Full Text PDF

Background: Schizophrenia is a persistent incurable mental disorder and is characterized by the manifestation of negative emotions and behaviors with anxiety and depression, fear and insecurity, self-harm and social withdrawal. The intricate molecular mechanisms underlying this phenomenon remain largely elusive. Accumulating evidence points towards the gut microbiota exerting an influence on brain function via the gut-brain axis, potentially contributing to the development of schizophrenia.

View Article and Find Full Text PDF

Schizophrenia is a severe, complex and long-term psychiatric disorder with unclear etiology. Gut microbes influence the central nervous system via the gut-brain axis. Consequently, investigations of the relationship between gut microbes and schizophrenia are warranted.

View Article and Find Full Text PDF

Fabricating three dimensional (3D) supramolecular frameworks (SMFs) into stable crystalline nanosheets remains a great challenge due to the homogeneous and weak inter-building block interactions along 3D directions. Herein, crystalline nanosheets of a 3D SMF with a uniform thickness of 4.8 ± 0.

View Article and Find Full Text PDF

The synthesis and characterization of porphyrin center regulated three-dimensional covalent organic frameworks (COFs) with 2-fold interpenetrated scu or sqc topology have been investigated. These COFs exhibit unique structural features and properties, making them promising candidates for photocatalytic applications in CO reduction and artemisinin synthesis. The porphyrin center serves as an anchor for metal ions, allowing precise control over structures and functions of the frameworks.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers developed a new electrocatalyst called NiPc-OH-COF by combining specific chemical compounds through a solvothermal process, aiming to improve stability and conductivity in comparison to two existing COFs.
  • This new COF demonstrates superior stability in harsh conditions (strong NaOH solvent) and high electrical conductivity due to enhanced hydrogen bonding between its molecular layers.
  • NiPc-OH-COF shows impressive performance in electrochemical reactions, achieving nearly 100% efficiency in converting CO and demonstrating significant current density and turnover rates during long-term measurements.
View Article and Find Full Text PDF

Developing high connectivity (>8) three-dimensional (3D) covalent organic frameworks (COFs) towards new topologies and functions remains a great challenge owing to the difficulty in getting high connectivity organic building blocks. This however represents the most important step towards promoting the diversity of COFs due to the still limited dynamic covalent bonds available for constructing COFs at this stage. Herein, highly connected phthalocyanine-based (Pc-based) 3D COFs MPc-THHI-COFs (M=H, Ni) were afforded from the reaction between 2,3,9,10,16,17,23,24-octacarboxyphthalocyanine M(TAPc) (M=H, Ni) and 5,5',5'',5''',5'''',5'''''-(triphenylene-2,3,6,7,10,11-hexayl)hexa(isophthalohydrazide) (THHI) with 12 connecting sites.

View Article and Find Full Text PDF

Ticks are important vectors of zoonotic diseases and play a major role in the circulation and transmission of many rickettsial species. The aim of this study was to investigate the carriage of Candidatus Rickettsia tarasevichiae (CRT) in a total of 1168 ticks collected in Inner Mongolia to elucidate the potential public health risk of this pathogen, provide a basis for infectious disease prevention, control and prediction and contribute diagnostic ideas for clinical diseases that present with fever in populations exposed to ticks. A total of four tick species, Haemaphysalis concinna (n = 21), Dermacentor nuttalli (n = 122), Hyalomma marginatum (n = 148), and Ixodes persulcatus (n = 877), were collected at nine sampling sites in Inner Mongolia, China, and identified by morphological and molecular biological methods.

View Article and Find Full Text PDF

Realization of stable and industrial-level HO electroproduction still faces great challenge due large partly to the easy decomposition of HO. Herein, a two-dimensional dithiine-linked phthalocyaninato cobalt (CoPc)-based covalent organic framework (COF), CoPc-S-COF, was afforded from the reaction of hexadecafluorophthalocyaninato cobalt (II) with 1,2,4,5-benzenetetrathiol. Introduction of the sulfur atoms with large atomic radius and two lone-pairs of electrons in the C-S-C linking unit leads to an undulated layered structure and an increased electron density of the Co center for CoPc-S-COF according to a series of experiments in combination with theoretical calculations.

View Article and Find Full Text PDF

The objective of this study was to construct a prognostic model by utilizing serine/glycine metabolism-related genes (SGMGs), thus establishing a risk score for lung adenocarcinoma (LUAD). Based on the TCGA-LUAD and SGMG data set, two subtypes with different SGMG expression levels were identified by clustering analysis. Thirteen differential expression genes were used to construct RiskScore by Cox regression.

View Article and Find Full Text PDF

Ticks can carry multiple pathogens, and Inner Mongolia's animal husbandry provides excellent environmental conditions for ticks. This study characterized the microbiome of ticks from different geographical locations in Inner Mongolia; 905 Dermacentor nuttalli and 36 Ixodes persulcatus were collected from sheep in three main pasture areas and from bushes within the forested area. Mixed DNA samples were prepared from three specimens from each region and tick species.

View Article and Find Full Text PDF

Damage to lamellar keratinocytes, an essential cellular component of the epidermal layer of hoof tissue, can have a detrimental effect on hoof health and the overall production value of dairy cows. We isolated and cultured cow lamellar keratinocytes using the Dispase II and collagenase methods. We purified them by differential digestion and differential velocity adherent methods at each passaging and identified them by keratin 14 immunofluorescence.

View Article and Find Full Text PDF

Background: Cancer stem cells are pivotal in cancer progression and therapy, including lung adenocarcinoma (LUAD). High NCAPG level is implicated in malignant tumorigenesis, but investigations on NCAPG and LUAD stem cells are warranted. Hence, projecting the impact of NCAPG on cell stemness and the targeted therapy for LUAD is of the essence.

View Article and Find Full Text PDF

Utilization of rigid, highly connected organic linkers is critical for the reticular synthesis of functional metal-organic frameworks (MOFs). However, highly-stable MOFs (e.g.

View Article and Find Full Text PDF

Damage to lamellar keratinocytes, an essential cellular component of the epidermal layer of hoof tissue, can have a detrimental effect on hoof health and the overall production value of dairy cows. In this study, we described four digestion methods: trypsin method, collagenase method, Dispase II combined with trypsin method, and Dispase II combined with collagenase method, compared their isolation and culture efficiency, observed primary cell and subculture cell growth, and according to the difference of digestion time and apposition time of fibroblasts and keratinocytes, lamellar keratinocytes were purified by differential digestion method as well as differential velocity adherent method at each passaging and identified specific keratin 14 of keratinocytes using immunofluorescence. The results revealed that the lamellar keratinocytes isolated using Dispase II combined with the collagenase method increased rapidly, the number of cells in the offspring 4 generation was high, and the cells demonstrated positive expression of keratin,which facilitated the subsequent purification.

View Article and Find Full Text PDF

Lithium-sulfur batteries (LSBs) have been considered as a promising candidate for next-generation energy storage devices, which however still suffer from the shuttle effect of the intermediate lithium polysulfides (LiPSs). Covalent-organic frameworks (COFs) have exhibited great potential as sulfur hosts for LSBs to solve such a problem. Herein, a pentiptycene-based symmetrical octatopic polyaldehyde, 6,13-dimethoxy-2,3,9,10,18,19,24,25-octa(4'-formylphenyl)pentiptycene (DMOPTP), was prepared and utilized as a building block toward preparing COFs.

View Article and Find Full Text PDF