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1.
RSC Adv ; 14(20): 14202-14213, 2024 Apr 25.
Article in English | MEDLINE | ID: mdl-38690107

ABSTRACT

In the search for pharmaceutically active compounds from natural products, it is crucial and challenging to develop separation methods that target not only structurally similar compounds but also a class of compounds with desired pharmaceutical functions. To achieve both structure-oriented and function-oriented selectivity, the choice of functional monomers with broad interactions or even biomimetic roles towards targeted compounds is essential. In this work, an imidazole (IM)-functionalized paper membrane was synthesized to realize selectivity. The IM was selected based on its capability to provide multiple interactions, participation in several bioprocesses, and experimental verification of adsorption performance. Using gallic acid as a representative component of Pomegranate Peel, the preparation conditions and extraction parameters were systematically investigated. The optimal membrane solid-phase extraction (MSPE) method allowed for enrichment of gallic acid from the complex matrix of Pomegranate Peel, enabling facile quantitative analysis with a limit of detection (LOD) of 0.1 ng mL-1. Furthermore, with the aid of cheminformatics, the extracted compounds were found to be similar in both their structures and pharmaceutical functions. This work offers a novel approach to preparing a readily synthesized extraction membrane capable of isolating compounds with similar structures and pharmaceutical effects, and provides an MSPE-based analytical method for natural products.

2.
Sci Adv ; 10(17): eadn0947, 2024 Apr 26.
Article in English | MEDLINE | ID: mdl-38669338

ABSTRACT

Organic electrosynthesis in aqueous media is presently hampered by the poor solubility of many organic reactants and thus low purity of liquid products in electrolytes. Using the electrooxidation of benzyl alcohol (BA) as a model reaction, we present a "sandwich-type" organic-solid-water (OSW) system, consisting of BA organic phase, KOH aqueous electrolyte, and porous anodes with Janus-like superwettability. The system allows independent diffusion of BA molecules from the organic phase to electrocatalytic active sites, enabling efficient electrooxidation of high-concentration BA to benzaldehyde (97% Faradaic efficiency at ~180 mA cm-2) with substantially reduced ohmic loss compared to conventional solid-liquid systems. The confined organic-water boundary within the electrode channels suppresses the interdiffusion of molecules and ions into the counterphase, thus preventing the hydration and overoxidation of benzaldehyde during long-term electrocatalysis. As a result, the direct production of high-purity benzaldehyde (91.7%) is achieved in a flow cell, showcasing the effectiveness of electrocatalysis over OSW interfaces for the one-step synthesis of high-purity organic compounds.

3.
Adv Mater ; : e2400681, 2024 Mar 30.
Article in English | MEDLINE | ID: mdl-38555504

ABSTRACT

Photo-mineralization of microplastics under mild conditions has emerged as a promising solution to plastic waste disposal. However, the inadequate contact between oxygen, water-insoluble polyolefin microplastics, and photocatalysts remains a critical issue. In this study, a TiO2 hierarchical porous layer (TiO2-HPL) photocatalyst is presented to establish air-plastic-solid triphase interfaces for the photothermal mineralization of polyolefins. The wettability of the TiO2-HPL-based triphase interface is finely controlled from plastophobic to plastophilic. High-resolution imaging and finite element simulation demonstrate the significance of a semiwetting state in achieving multidirectional oxygen diffusion through the hierarchical pore structure while maintaining sufficient contact between the plastic phase and photocatalysts. For low-density polyethylene, the TiO2-HPL achieves a photothermal mineralization rate of 5.63 mmol g-1 h-1 and a conversion of 26.3% after 20 h of continuous irradiation. Additionally, the triphase photocatalytic system with semiwetting gas-plastic-solid interfaces shows good universality for various polyolefin reagents and products, illustrating its potential in achieving efficient photothermal mineralization of non-degradable microplastics.

4.
BMC Cancer ; 24(1): 169, 2024 Feb 03.
Article in English | MEDLINE | ID: mdl-38310208

ABSTRACT

BACKGROUND: This study aimed to compare the efficacy of focused ultrasound (FUS) and the loop electrosurgical excision procedure (LEEP) for the treatment of cervical high-grade squamous intraepithelial lesions (HSILs) among women of reproductive age. METHODS: Case records of patients aged < 40 years who were treated for cervical HSILs using either FUS or LEEP from September 1, 2020 to May 31, 2022 were retrospectively reviewed. Patients were followed up for cure, recurrence, human papillomavirus (HPV) clearance, and complications within 1 year of treatment. Odds ratios and 95% confidence intervals were determined using univariate and multivariate logistic regression models to analyze the association between disease evidence or HPV clearance and treatment modalities or other covariates. RESULTS: Of the 1,054 women who underwent FUS or LEEP, 225 met our selection criteria. Among the selected women, 101 and 124 received FUS and LEEP, respectively. There was no significant difference between the FUS and LEEP groups in the cure rate during the 3-6 months of follow-up (89.11% vs. 94.35%, P = 0.085) and recurrence rate during the 6-12 months follow-up (2.22% vs. 1.71%, P = 0.790). Both groups exhibited enhanced cumulative HPV clearance rates; however, the rates were not significantly different between the FUS and LEEP groups (74.23% vs. 82.79%, P = 0.122 during the 3-6 months follow-up; 84.95% vs. 89.17%, P = 0.359 during the 6-12 months follow-up). Furthermore, the incidence of complications caused by the FUS and LEEP techniques was comparable (5.0% vs. 5.6%, P = 0.818). CONCLUSIONS: We found that FUS and LEEP have similar efficacy, safety, and reliability in treating women (aged < 40 years) with HSILs.


Subject(s)
Papillomavirus Infections , Squamous Intraepithelial Lesions , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/pathology , Retrospective Studies , Electrosurgery/adverse effects , Electrosurgery/methods , Papillomavirus Infections/complications , Papillomavirus Infections/surgery , Reproducibility of Results , Neoplasm Recurrence, Local/epidemiology
5.
JAMA Ophthalmol ; 142(2): 133-139, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-38236592

ABSTRACT

Importance: Anti-vascular endothelial growth factor (VEGF) treatment through intravitreal or subretinal administrations has been proven effective for VEGF-driven pediatric vitreoretinal diseases but are not feasible for advanced cases, such as shallow traction retinal detachments or peripheral circumferential retinal detachments which adhere to the lens. Intra-anterior chamber injection (IAcI) of anti-VEGF may be a viable alternative in such cases but needs evaluation. Objective: To investigate the effects and safety of IAcI of anti-VEGF to treat VEGF-driven pediatric vitreoretinal diseases. Design, Setting, and Participants: This was a retrospective observational case series study conducted at Xinhua Hospital, affiliated with Shanghai Jiao Tong University School of Medicine in China. The study included 14 eyes of 13 children diagnosed with vitreoretinal disease exhibiting elevated vascular activity between January and August 2023. Intervention: IAcI with ranibizumab. Main Outcomes and Measures: Retinal vascular abnormalities, vitreous hemorrhage resolution, and complications 1 month and 3 months after injection. Results: Of 13 patients included in this study, 12 were male. The mean age was 4.6 years (range, 1 month to 9 years). Six patients were diagnosed with familial exudative vitreoretinopathy, 4 with morning glory syndrome, 1 with retinopathy of prematurity, and 2 with chronic retinal detachments of unknown causes. At 1-month postoperative follow-up, vascular activity had decreased in 14 of 14 eyes. At 3-month follow-up, vascular activity had resolved in 7 of 14 eyes, persisted in 6 of 14 eyes, and reactivated in 1 of 14 eyes. On final observation, no complications were reported. Conclusions and Relevance: These findings support the possibility of treatment using IAcI with ranibizumab to decrease retinal vascular abnormalities in familial exudative vitreoretinopathy or retinopathy of prematurity or related conditions, but further studies are needed to understand more precise benefits and risks. This approach might be considered in cases where intravitreal or subretinal injection are not feasible, recognizing the limitations of these findings and that longer-term outcomes still need to be monitored.


Subject(s)
Retinal Detachment , Retinopathy of Prematurity , Infant, Newborn , Humans , Male , Child , Child, Preschool , Female , Ranibizumab , Angiogenesis Inhibitors/therapeutic use , Vascular Endothelial Growth Factor A , Retinal Detachment/etiology , Retinopathy of Prematurity/diagnosis , Retinopathy of Prematurity/drug therapy , Familial Exudative Vitreoretinopathies/complications , Familial Exudative Vitreoretinopathies/drug therapy , Intracameral Injection , China , Retrospective Studies , Intravitreal Injections , Bevacizumab
6.
FASEB J ; 38(1): e23389, 2024 01.
Article in English | MEDLINE | ID: mdl-38153347

ABSTRACT

Serum amyloid A (SAA) are major acute-phase response proteins which actively participate in many inflammatory diseases. This study was designed to explore the function of SAA in acute ocular inflammation and the underlying mechanism. We found that SAA3 was upregulated in endotoxin-induced uveitis (EIU) mouse model, and it was primarily expressed in microglia. Recombinant SAA protein augmented intraocular inflammation in EIU, while the inhibition of Saa3 by siRNA effectively alleviated the inflammatory responses and rescued the retina from EIU-induced structural and functional damage. Further study showed that the recombinant SAA protein activated microglia, causing characteristic morphological changes and driving them further to pro-inflammatory status. The downregulation of Saa3 halted the amoeboid change of microglia, reduced the secretion of pro-inflammatory factors, and increased the expression of tissue-reparative genes. SAA3 also regulated the autophagic activity of microglial cells. Finally, we showed that the above effect of SAA on microglial cells was at least partially mediated through the expression and signaling of Toll-like receptor 4 (TLR4). Collectively, our study suggested that microglial cell-expressed SAA could be a potential target in treating acute ocular inflammation.


Subject(s)
Microglia , Serum Amyloid A Protein , Animals , Mice , Serum Amyloid A Protein/genetics , Inflammation/chemically induced , Retina , Acute-Phase Proteins , Endotoxins/toxicity
7.
Adv Ophthalmol Pract Res ; 3(1): 9-14, 2023.
Article in English | MEDLINE | ID: mdl-37846430

ABSTRACT

Purpose: To outline the characteristics of Combined Hamartoma of the Retina and Retinal Pigmentation Epithelium (CHRRPE) and provide a comprehensive overview of surgical management of epiretinal membrane (ERM) caused by CHRRPE. Main text: CHRRPE is a rare ocular tumor. It clinically mimics other diseases such as retinoblastoma and choroidal melanoma. The present study reviewed the multimodal imaging of CHRRPE, highlighted the multimodal imaging modalities which are useful for revealing the unique features of CHRRPE and hence allowing physicians to confirm the diagnosis.Although most of CHRRPEs are benign harmatoma, progressive visual loss may occur because of the traction of the tumor and other complications. It is treated through surgical removal of the ERM caused by CHRRPE to free retina from the traction. Currently, there is no consensus on the surgical management of CHRRPE. Therefore, the current review was designed to explore the surgical management of ERM caused by CHRRPE and hence provide updated data on this subject. Conclusions: Multimodal imaging technologies, especially optical coherence tomography (OCT), significantly contributes to the diagnosis of CHRRPE and visual prognosis. Surgical management of CHRRPE through removal of ERM is beneficial in patients with worsening VA which is secondary to ERM which is associated with CHRRPE. However, the strategy is limited to patients with long-standing poor vision. However, earlier surgical therapy and subsequent postoperative amblyopia therapy can be explored for children of amblyogenic age.

9.
Aesthetic Plast Surg ; 2022 Dec 27.
Article in English | MEDLINE | ID: mdl-36574028

ABSTRACT

BACKGROUND: With the global increase in the use of injectable fillers, more cases with serious adverse events such vision loss are being reported. This article aims to review the cases of hyaluronic acid (HA) filler-related vision loss and to discuss the potential efficacy of hyaluronidase (HYASE) treatment via different given methods. METHODS: A total of 29 articles presenting 144 cases of HA filler-related vision loss were included in this study. RESULTS: Most cases of HA filler-related vision impairment were reported from China, followed by Korea. The majority of cases were seen in women. The nose, forehead and glabella were the most commonly injection sites. All cases had vision impairment and nearly all cases were unilateral with immediate onset of visual signs and symptoms. Ophthalmic artery occlusion (OAO) and central retinal artery occlusion (CRAO) were the two most commonly involved arterial obstruction patterns featured with a very poor prognosis followed by branch retinal artery occlusion (BRAO), the most favorable involved arterial pattern for a better prognosis. HYASE given subcutaneously and intra-arterially helped with visual recovery to different degrees, while retrobulbar HYASE seemed to be less helpful. CONCLUSION: Complications after HA-based filler injection are extremely rare but can cause disastrous visual impairment. HYASE given subcutaneously and intra-arterially helped with visual recovery to different extents, and the efficacy might be reinforced when performed together, while retrobulbar HYASE seemed to be less helpful. However, to accurately access the efficacy of HYASE via different administration methods, further randomized controlled trials are needed. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

11.
Front Med (Lausanne) ; 9: 961152, 2022.
Article in English | MEDLINE | ID: mdl-36082272

ABSTRACT

Purpose: To introduce the procedures of two-step fundus fluorescein angiography (FFA) and evaluate its utility in the management of pediatric retinal vasculopathy. Materials and methods: In this retrospective study, medical records of 12 patients who received two-step FFA were studied. The two-step FFA consisted of step 1 [low-dose (LD)] FFA at an intravenous dose of 1.5 mg/kg fluorescein, followed by step 2 [reduced dose (RD)] FFA at a dose of 6.2 mg/kg fluorescein. Demographic data, including age, gender, diagnosis, weight, gestational age, birth weight, and weight on the examination day were taken, were collected. The results of two-step FFA and treatment were recorded. Results: A total of 20 eyes were studied. The top 5 common FFA changes in RD-FFA included peripheral avascular zone (15 eyes), fluorescein leakage (10 eyes), supernumerous vascular branching (10 eyes), neovascularization (NV) (8 eyes), and absence of the foveal avascular zone (6 eyes). LD-FFA was efficient to show all the NV without severe vitreous dye in 8/8 (100.0%) eyes with NV, partial peripheral avascular zone in 11/15 (73.3%) eyes, while RD-FFA always offered more information in all the eyes. Thirteen eyes had laser photocoagulation under the guidance of LD-FFA. In 4 (30.8%) eyes, RD-FFA revealed more lesions and an immediate relaser was performed. Laser photocoagulation was successfully performed in all the 13 eyes in one session without being rearranged. After a median follow-up of 28.1 months, all the eyes were in a stable status. Conclusion: Step-one LD-FFA acted as a pre-FFA to show the NV, and step-two RD-FFA acted as a double-check. The modified strategy may be a helpful clinical adjuvant in the laser photocoagulation of pediatric retinal disorders, especially for young ophthalmologists.

12.
Transl Cancer Res ; 11(7): 2225-2237, 2022 Jul.
Article in English | MEDLINE | ID: mdl-35966326

ABSTRACT

Background: In children, retinoblastoma (RB) is one of the most common primary malignant ocular tumors and has a poor prognosis and high mortality. To understand the molecular mechanisms of RB, we identified microRNAs (miRNAs), key genes and transcription factors (TFs) using bioinformatics analysis to build potential miRNA-gene-TF networks. Methods: We collected three gene expression profiles and one miRNA expression profile from the Gene Expression Omnibus (GEO) database. We used the limma R package to identify overlapping differentially expressed genes (DEGs) and differentially expressed miRNAs in RB tissues compared to noncancer tissues. The robust rank aggregation (RRA) method was implemented to identify key genes among the DEGs. Then, miRNA-key gene-TF networks were built using the online tools TransmiR and miRTarBase. Next, we used RT-qPCR to confirm the results. Results: We identified 180 DEGs in RB tissues compared to nontumor tissues using integrative analysis, among which 109 genes were upregulated and 71 were downregulated. Gene ontology (GO) analysis revealed that these DEGs were primarily involved with chromosome segregation, condensed chromosome and DNA replication origin binding. The most highly enriched pathways obtained in Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were cell cycle, DNA replication, homologous recombination, P53 signaling pathway and pyrimidine metabolism. Furthermore, two key differentially expressed miRNAs (DEMs) were also established: let-7a and let-7b. Finally, the potential regulatory networks of miRNA-target gene-TFs were examined. Conclusions: This study identified key genes and built miRNA-target gene-TF regulatory networks in RB, which will deepen our understanding of the molecular mechanisms involved in the development of RB. These key genes and miRNAs may be potential targets and biomarkers for RB diagnosis and therapy.

13.
Biosens Bioelectron ; 216: 114600, 2022 Nov 15.
Article in English | MEDLINE | ID: mdl-35961121

ABSTRACT

Nerve cuff electrodes have been used for decades as peripheral nerve interfacing devices in the fields of neural science, neural disease, and brain-machine interfacing. The currently-used cuff electrode is commonly based on rigid materials whose flexibility and tensile properties are far different from those of biological nervous tissue. Herein, a fluidic cuff electrode using a gallium-based liquid metal (LM) conductor is developed as a prototype artificial peripheral nerve. The results indicate that the LM cuff electrode has high flexibility and maintains outstanding conductivity. After implanted and connected to the sciatic nerve, the LM electrodes within the freely moving rats' bodies survive repeated body stretching and retain their long-term effectiveness in transmitting sciatic nerve signals with a high signal-to-noise ratio during two-week experiments. The LM electrodes are also proven capable of transmitting neural stimuli to the peripheral nerve on a long-term basis by triggering clear event-related potentials (ERPs) in terms of both the cortical potential and sciatic signal. These tests demonstrate that the LM electrodes meet the requirements of peripheral nerve signal recording and stimulation for long-term implantation, and have the potential to become a new generation of artificial peripheral nerve devices to interface with, supplement, or even enhance and replace the real peripheral nerve.


Subject(s)
Biosensing Techniques , Gallium , Nerve Tissue , Animals , Electric Stimulation , Electrodes , Electrodes, Implanted , Peripheral Nerves/physiology , Rats
14.
Front Med (Lausanne) ; 9: 894991, 2022.
Article in English | MEDLINE | ID: mdl-35712106

ABSTRACT

Introduction: To report a novel combining a 25-gauge retrobulbar needle with a built-in 30-gauge needle surgical technique for subfoveal perfluorocarbon liquid (PFCL) removal. Materials and Methods: Fourteen eyes of 14 patients who underwent subfoveal PFCL removal with a 25-gauge retrobulbar needle combined with a built-in 30-gauge needle were studied. The 30-gauge needle was inserted into the 25-gauge retrobulbar needle. The bent tip of the built-in 30-gauge needle was used to create a 30-gauge retinotomy at the farthest edge of the subfoveal PFCL droplet. Then, a flute cannula was used to aspirate the PFCL through the previously created retinotomy. The best-corrected visual acuity (BCVA) was determined, previous surgical history and post-operative complications were recorded. Results: Fourteen cases were analyzed. Most eyes (92.85%) showed an improvement in BCVA after surgery. The mean change in the BCVA was -0.7 ± 0.72 logarithm of the minimum angle of resolution (logMAR) units (p = 0.006). Post-operative complications included a self-healing macular hole in one eye and vitreous hemorrhage in one eye. Post-operative optical coherence tomography confirmed removal of the subfoveal PFCL with restoration of the macular fovea. Conclusion: Combining a 25-gauge retrobulbar needle with a built-in 30-gauge needle to remove subfoveal PFCL is easy to perform and carries little potential risk of subretinal impairment. This method also provides relatively good macular contour with functional improvement.

15.
Immunology ; 167(2): 233-246, 2022 10.
Article in English | MEDLINE | ID: mdl-35753028

ABSTRACT

Intestinal intraepithelial lymphocytes (IELs) play a crucial role in host defence against pathogens in the intestinal mucosa. The development of intestinal IELs is distinct from peripheral T lymphocytes and remains elusive. Fas-associated protein with death domain (FADD) is important for T cell development in the thymus. Here we describe a novel function of FADD in the IEL development. FADD (S191A), a mouse FADD mutant at Ser191 to Ala mimicking constitutively unphosphorylated FADD, promoted a rapid expansion of TCRαß+ IELs, not TCRγδ+ IELs. Mechanism investigation indicated that the dephosphorylation of FADD was required for cell activation mainly in TCRαß+ CD8+ T cells. Consistently, FADD (S191A) as dephosphorylated FADD led to a high NF-κB activation in the TCR-dependent cell expansion. In addition, The FADD (S191A)-induced abnormal IEL populations resulted in the increased incidence and severity of colitis in mice. In summary, FADD signalling is involved in the intestinal IEL development and might be a regulator for intestinal mucosal homeostasis.


Subject(s)
Intraepithelial Lymphocytes , Receptors, Antigen, T-Cell, alpha-beta , Animals , CD8-Positive T-Lymphocytes/metabolism , Fas-Associated Death Domain Protein/genetics , Fas-Associated Death Domain Protein/metabolism , Intestinal Mucosa/metabolism , Intraepithelial Lymphocytes/metabolism , Mice , Mice, Inbred C57BL , NF-kappa B/metabolism , Receptors, Antigen, T-Cell, alpha-beta/genetics , Receptors, Antigen, T-Cell, alpha-beta/metabolism
16.
Front Med (Lausanne) ; 9: 850129, 2022.
Article in English | MEDLINE | ID: mdl-35572974

ABSTRACT

Purpose: To report a modified technique of dry-lensectomy assisted lensectomy in the management of end-stage familial exudative vitreoretinopathy (FEVR) complicated with capsule-endothelial, iris-endothelial adhesion and secondary glaucoma. Methods: 24 eyes of 16 patients with severe complications of advanced pediatric total retinal detachment caused by FEVR who received limbus-based dry-lensectomy were studied retrospectively. Preoperative and postoperative clinical information was collected and reviewed. Results: Among the 24 eyes, three eyes (12.50%) underwent lensectomy combined with vitrectomy and membrane peeling simultaneously. 21 (87.50%) eyes underwent lensectomy without membrane peeling due to severe corneal opacity or retinal vascular activity, of which eight underwent another vitrectomy combined with membrane peeling. At the last visit (mean:13.86 ± 5.24 months of follow-up), all eyes had a reconstructed anterior chamber with normal depth. Among 21 eyes having preoperative corneal opacity, 15 (71.43%) had a clearer cornea with reduced opacity, 5 (23.81%) showed similar corneal opacification without deterioration. Among 11 eyes undergone retrolental fibroplasia peeling, seven (63.64%) eyes showed partial retinal reattachment in open-funnel type. Conclusion: Dry-lensectomy offered a simple way to lower the intraocular pressure and simplified the surgery, which helped to solve the severe anterior segment complications and offer a chance for following retrolental fibroplasia peeling and potential visual gain for selected end-stage FEVR patients.

17.
Int J Biol Sci ; 18(8): 3137-3155, 2022.
Article in English | MEDLINE | ID: mdl-35637951

ABSTRACT

The Fas-associated death domain (FADD) has long been regarded as a crucial adaptor protein in the extrinsic apoptotic pathway. Despite the non-apoptotic function of FADD is gradually being discovered and confirmed, its corresponding physiological and pathological significance is still unclear. Based on the database of GWAS catalog and GTEx Portal, 17 SNPs associated with leukemia susceptibility were found to be linked to FADD expression. We then investigated a regulatory role of FADD in T-acute lymphoblastic leukemia (T-ALL) using Jurkat cells as a model. Jurkat cells stably depleted of FADD (FADD-/- Jurkat) expression exhibited dampened proliferation, hypersensitivity to Etoposide-induced intrinsic apoptosis whereas near total resistance to TRAIL-induced extrinsic apoptosis. Comparison between wild type and FADD-/- Jurkat cells using iTRAQ-based proteomics revealed considerably altered expression spectrum of genes, and led us to focus on metabolic pathways. Investigation of glycolytic and mitochondrial pathways and relevant enzymes revealed that FADD knockout triggered a metabolic shift from glycolysis to mitochondrial respiration in Jurkat cells. Re-expression of FADD in FADD-/- Jurkat cells partially rescued glycolytic capacity. FADD loss triggers global metabolic reprogramming in Jurkat cells and therefore remains as a potential druggable target for ALL treatment.


Subject(s)
Apoptosis , Fas-Associated Death Domain Protein , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Apoptosis/genetics , Fas-Associated Death Domain Protein/genetics , Fas-Associated Death Domain Protein/metabolism , Glycolysis/genetics , Humans , Jurkat Cells , Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
18.
Retina ; 42(2): 306-312, 2022 02 01.
Article in English | MEDLINE | ID: mdl-35050929

ABSTRACT

PURPOSE: To report the long-term outcomes of lens capsular flap transplantation (LCFT) as initial treatment for large macular holes (MHs). METHODS: Thirteen consecutive eyes with large MHs who received LCFT as primary treatment were reviewed retrospectively. All enrolled eyes underwent standard 23-gauge vitrectomy, internal limiting membrane peeling, LCFT, and 15% perfluoropropane tamponade. Autologous whole blood was applied in selected eyes to make the LCT intact. A face-down position maintained for 2 weeks postoperatively. Data including demographic information, medical history, anatomical and functional outcomes, and complications were recorded. RESULTS: The mean preoperative MHs diameter was 979.42 ± 388.28 µm. Eight eyes received autologous LCFT, and the other five eyes received allogenic LCFT. Whole blood was applied in seven eyes. The mean follow-up duration was 19.57 ± 6.24 months (range: 12.0-32.2 months). The macular hole was successfully closed in all cases (13/13). The median best-corrected visual acuity improved from 1.76 (interquartile range, 1.23-1.91) logarithm of the minimum angle of resolution (median Snellen acuity: 20/1,150) preoperatively to 1.16 ± 0.47 logarithm of the minimum angle of resolution (mean Snellen acuity: 20/290) (P < 0.01) at the last visit. No severe complications were noted. CONCLUSION: Lens capsular flap transplantation may help to improve the closure rate and visual outcomes in large MHs, which could be an alternative method as primary treatment for large MHs.


Subject(s)
Endotamponade , Lens Capsule, Crystalline/transplantation , Retinal Perforations/surgery , Surgical Flaps/transplantation , Vitrectomy , Aged , Cataract Extraction , Child , Female , Fluorocarbons/administration & dosage , Follow-Up Studies , Humans , Male , Middle Aged , Prone Position , Retinal Perforations/diagnostic imaging , Retinal Perforations/physiopathology , Retrospective Studies , Tomography, Optical Coherence , Transplantation, Autologous , Treatment Outcome , Visual Acuity/physiology
19.
Nanotechnology ; 33(18)2022 Feb 07.
Article in English | MEDLINE | ID: mdl-35042196

ABSTRACT

The increasing energy and environmental problems have made clean energy-driven catalysis a hot research topic. Methane is an earth-abundant raw material but difficult to be converted by thermochemical processes. It is of great significance to seek novel strategies to convert methane into high-value chemicals. Herein, we synthesize a series of transition metal catalysts based on layered double hydroxide precursors which were used for photothermal methane nonoxidative coupling reactions. The strong photothermal and chemisorption effects of the derived transition metal nanostructures allow the efficient activation of methane molecules. Among them, alumina-supported metallic Ni and NiCo-alloy catalysts show excellent methane nonoxidative coupling activities, achieved hydrogen production rates of 4816.53µmol g-1h-1and 5130.9µmol g-1h-1, accompanied by liquid fuels production rates of 59.2 mg g-1h-1and 63 mg g-1h-1, respectively. The findings, therefore, provide a new strategy for methane nonoxidative coupling driven by light energy at mild conditions.

20.
Angew Chem Int Ed Engl ; 60(42): 22963-22969, 2021 Oct 11.
Article in English | MEDLINE | ID: mdl-34374187

ABSTRACT

Photocatalysis as one of the future environment technologies has been investigated for decades. Despite great efforts in catalyst engineering, the widely used powder dispersion and photoelectrode systems are still restricted by sluggish interfacial mass transfer and chemical processes. Here we develop a scalable bilayer paper from commercialized TiO2 and carbon nanomaterials, self-supported at gas-liquid-solid interfaces for photothermal-assisted triphase photocatalysis. The photogeneration of reactive oxygen species can be facilitated through fast oxygen diffusion over triphase interfaces, while the interfacial photothermal effect promotes the following free radical reaction for advanced oxidation of phenol. Under full spectrum irradiation, the triphase system shows 13 times higher reaction rate than diphase controlled system, achieving 88.4 % mineralization of high concentration phenol within 90 min full spectrum irradiation. The bilayer paper also exhibits high stability over 40 times cycling experiments and sunlight driven feasibility, showing potentials for large scale photocatalytic applications by being further integrated into a triphase flow reactor.

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