Photodiagnosis Photodyn Ther
December 2024
Cholesteric liquid crystal microcapsules (CLCMs) are used to improve the stability of liquid crystals while ensuring their stimulus response performance and versatility, with representative applications such as sensing, anticounterfeiting, and smart fabrics. However, the reflectivity and angular anisotropy decrease because of the anchoring effect of the polymer shell matrix, and the influence of particle size on this has not been thoroughly studied. In this study, the effect of synthesis technology on microcapsule particle size was investigated using a complex coalescence method, and the effect of particle size on the reflectivity and angular anisotropy of CLCMs was investigated in detail.
View Article and Find Full Text PDFBeckwith-Wiedemann Syndrome (BWS) is an epigenetic overgrowth syndrome caused by methylation changes in the human 11p15 chromosomal locus. Patients with BWS exhibit tissue overgrowth, as well as an increased risk of childhood neoplasms in the liver and kidney. To understand the impact of these 11p15 changes, specifically in the liver, we performed single-nucleus RNA sequencing (snRNA-seq) and single-nucleus assay for transposase-accessible chromatin with sequencing (snATAC-seq) to generate paired, cell-type-specific transcriptional and chromatin accessibility profiles of both BWS-liver and nonBWS-liver nontumorous tissue.
View Article and Find Full Text PDFTen-eleven translocation (TET) enzymes iteratively oxidize 5-methylcytosine (5mC) to generate 5-hydroxymethylcytosine (5hmC), 5-formylcytosine, and 5-carboxylcytosine to facilitate active genome demethylation. Whether these bases are required to promote replication-coupled dilution or activate base excision repair during mammalian germline reprogramming remains unresolved due to the inability to decouple TET activities. Here, we generated two mouse lines expressing catalytically inactive TET1 (Tet1-HxD) and TET1 that stalls oxidation at 5hmC (Tet1-V).
View Article and Find Full Text PDFInt J Mol Sci
February 2024
DNA lesions trigger DNA damage checkpoint (DDC) signaling which arrests cell cycle progression and promotes DNA damage repair. In , phosphorylation of histone H2A (γH2A, equivalent to γH2AX in mammals) is an early chromatin mark induced by DNA damage that is recognized by a group of DDC and DNA repair factors. We find that γH2A negatively regulates the G2/M checkpoint in response to the genotoxin camptothecin, which is a DNA topoisomerase I poison.
View Article and Find Full Text PDFBackground: It is vital to distinguish between inflammatory and malignant lymphadenopathy in human immunodeficiency virus (HIV) infected individuals. The purpose of our study was to differentiate the variations in the clinical characteristics of HIV patients, and apply F-FDG PET/CT parameters for distinguishing of malignant lymphoma and inflammatory lymphadenopathy in such patients.
Methods: This retrospective cross-sectional study included 59 consecutive HIV-infected patients who underwent whole-body F-FDG PET/CT.
Aim: To observe changes in the best-corrected visual acuity (BCVA), central macular thickness (CMT), and central choroidal thickness (CCT) of patients with macular edema (ME) secondary to ischemic retinal vein occlusion (iRVO) following intravitreal Conbercept injection.
Methods: This retrospective study included 33 eyes from 33 patients who received intravitreal injections of Conbercept for ME secondary to iRVO. Treatments were performed on a 3+ (3+PRN) basis.
Aim: To investigate the cytotoxic effect of specific T cells from mice with experimental autoimmune uveitis (EAU) as well as their secreted interferon (IFN)-γ and interleukin (IL)-17A on murine photoreceptor (661W) cells.
Methods: An EAU model was established in female mice by injection of interphotoreceptor retinoid binding protein (IRBP) emulsion supplemented with complete Freund's adjuvant (CFA) and (TB). On day 12 after induction of EAU, specific T cells from spleen and lymph node tissues were isolated and cultured for 4d and the levels of IFN-γ and IL-17A in the supernatants were determined by enzyme-linked immunosorbent assays (ELISAs).
Medicine (Baltimore)
February 2020
Rationale: To report a case of diode laser transscleral cyclophotocoagulation (DLTSC) for uveitis-glaucoma-hyphema syndrome (UGH).
Patient Concerns: The patient developed UGH on the right eye (OD) after vitrectomy and intraocular lens (IOL) implantation.
Diagnoses: Best corrected visual acuity (BCVA) was HM/50 cm, intraocular pressure (IOP) was 51.
Medicine (Baltimore)
June 2019
Rationale: To report a rare case of 8-year-old girl patient with central retinal venous occlusion (CRVO) with hyperhomocysteinemia.
Patient Concerns: The patient had a 2-year history on painless visual loss in the left eye.
Diagnoses: All examination results were within normal limits except plasma homocysteine (HCY).
J Food Sci Technol
September 2018
The aims of this study were to observe the antimicrobial effect and mechanism of cinnamon oil combined with gamma radiation on Gamma radiation increased the antimicrobial activity of cinnamon oil, and the relative radiation sensitivity of gamma radiation on was increased by cinnamon oil. Gamma radiation significantly increased the changes of bacterial morphology, intra-adenosine 5'-triphosphate (intra-ATP) and extra-ATP concentrations and pH value of treated cinnamon oil. Although, gamma radiation used alone didn't damage the bacterial morphology and ATP concentrations significantly.
View Article and Find Full Text PDFRationale: Pulmonary arteriovenous malformations (PAVMs) complicated with multiple organ abscesses is an uncommon manifestation. Because of the low incidence of the disease, F-18 fluorodeoxyglucose positron emission tomography with computed tomography (F-FDG PET/CT) imaging studies for PAVMs complicated with multiple organ abscesses are scarce.
Patient Concerns: We report a case of a 54-year-old man presenting with PAVMs complicated with synchronous multiple organ abscesses founded by F-FDG PET/CT.
Bioorg Med Chem Lett
January 2016
A series of novel hexahydropyrrolo[2,3-b]indole-1H-imidazolium salts were synthesized and evaluated in vitro against a panel of human tumor cell lines. The results suggest that the 5,6-dimethyl-benzimidazole ring, and substitution of the imidazolyl-3-position with a 2-bromobenzyl or 2-naphthylmethyl group, were important for the cytotoxic activity. Notably, Compound 43, bearing a 2-bromobenzyl substituent at position-3 of 5,6-dimethyl-benzimidazole, was found to possess the most potent derivative against five human tumor cell lines with IC50 values below 2.
View Article and Find Full Text PDFExperimental autoimmune uveitis, a well-established model for human uveitis, is similar to human uveitis in many pathological features. Studies concerning the mechanisms of experimental autoimmune uveitis would cast a light on the pathogenesis of human uveitis as well as the search for more effective therapeutic agents. The cellular components of innate immunity include natural killer cells, gamma delta T lymphocytes, antigen-presenting dendritic cells, phagocytic macrophages, and granulocytes.
View Article and Find Full Text PDFJ Chromatogr B Analyt Technol Biomed Life Sci
January 2015
Uveitis is a severe autoimmune eye disease that can cause intraocular inflammation even lead to severe vision loss, and the occurrence of uveitis can be closely associated with abnormal expression of proteins. However, the abnormally expressed proteins involved in uveitis are not well identified. Using liquid chromatography-tandem mass spectrometry technique, we examined the alterations in proteomic expression profiling in rat plasma specimens related to experimental autoimmune uveitis (EAU) versus normal samples.
View Article and Find Full Text PDFPurpose: To report a case of Valsalva retinopathy treated by neodymium-doped yttrium aluminum garnet (Nd:YAG) laser and discuss the previously reported treatments for Valsalva retinopathy.
Case Report: A 35-year-old-woman experienced a sudden painless visual loss in her left eye after lifting heavy bags of manure on the farm. The patient was diagnosed as having Valsalva retinopathy.
Purpose: Angiogenesis is an important mediator in tumor progression. Vascular endothelial growth factor (VEGF) is one of the major cytokines that can influence angiogenesis. However, the potential mechanism of tumor growth inhibition through anti-VEGF agents is still unclear.
View Article and Find Full Text PDFAlthough radiation-induced bystander effects are frequently observed biological phenomena, the mechanism for these effects has not been fully determined. The target-hit theory and related concepts from microdosimetry provide a convenient formalism to help identify the nature of the targets responsible for initiating the emission of diffusible factors in medium transfer experiments. We used the microdosimetric models proposed by Stewart et al.
View Article and Find Full Text PDFThe existence of radiation-induced bystander effects mediated by diffusible factors is now accepted, but the mechanisms and precise behavior at low doses remain unclear. We exposed cells to gamma-ray doses in the range 0.04 mGy-5 Gy, harvested the culture medium, and transferred it to unirradiated reporter cells.
View Article and Find Full Text PDF