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AIM: To evaluate the efficacy of phacoemulsification with intraocular lens implantation(PEI)combined with goniosynechialysis(GSL)and goniotomy(GT)under direct vision with gonioscope in the treatment of advanced primary angle-closure glaucoma(PACG)combined with cataract.METHODS: Retrospective case series study. A total of 62 patients(65 eyes)with advanced PACG combined with cataract who were treated in the Second Hospital of Anhui Medical University from December 1, 2021 to March 31, 2023 were enrolled, and they were divided into two groups according to different surgical methods. The control group(32 cases, 33 eyes)received PEI+GSL, whereas the observation group(30 cases, 32 eyes)received PEI+GSL+GT. The intraocular pressure(IOP), best corrected visual acuity(BCVA)and the number of anti-glaucoma medications of the two groups before surgery and at 1 d, 1 wk, 1, 3, and 6 mo after surgery were evaluated. In addition, the visual field, cup-to-disc ratio(C/D), angle open range, anterior chamber depth, and average thickness of retinal nerve fiber layer(RNFL)were evaluated before and 6 mo after surgery.RESULTS: There were significant differences in IOP and lowering range of average IOP at 6 mo between the PEI+GSL+GT group(16.68±2.65, 11.12±8.53 mmHg)and the PEI+GSL group(18.71±2.51, 8.32±4.17 mmHg; P0.05). The number of anti-glaucoma medications, BCVA, anterior chamber depth, and angle closure range were improved in the two groups at 6 mo after operation(all P0.05). There was no difference in the mean deviation of visual field, C/D and average thickness of RNFL between the two groups at 6 mo after operation compared with those before operation(all P>0.05). The complete surgery success rate of the PEI+GSL+GT group was 81%(26/32), and the conditional success rate was 94%(30/32); while those rates of the PEI+GSL group were 58%(19/33)and 76%(25/33), respectively. There were statistical significance in the success rate of surgery between the two groups(complete success rate χ2=4.275, P=0.039; conditional success rate χ2=4.040, P=0.044). No vision-threatening complications and another surgery occurred in either group.CONCLUSION: The study showed that for patients with advanced PACG with cataract, PEI+GSL+GT is more effective than PEI+GSL.

AIM: To study the perception of first-order grating acuity and second-order spatial contrast sensitivity in patients with monocular anisometropia amblyopia.METHODS:A total of 715 children(715 eyes)diagnosed as monocular anisometropia amblyopia in our hospital from January 2018 to December 2022 were collected as amblyopia group, and 745 children(745 eyes)with normal corrected visual acuity were collected. The best corrected visual acuity(BCVA), first-order grating acuity and/or second-order spatial contrast sensitivity were measured, repectively. The perception ability of amblyopia patients to first-order grating acuity and second-order spatial contrast sensitivity were analyzed.RESULTS:There were significant differences between amblyopia group and normal control group in the perception of first-order grating acuity(11.58±6.10 vs. 20.27±3.47, P

Tissue-resident innate lymphoid cells (ILCs) help sustain barrier function and respond to local signals. ILCs are traditionally classified as ILC1, ILC2 or ILC3 on the basis of their expression of specific transcription factors and cytokines1. In the skin, disease-specific production of ILC3-associated cytokines interleukin (IL)-17 and IL-22 in response to IL-23 signalling contributes to dermal inflammation in psoriasis. However, it is not known whether this response is initiated by pre-committed ILCs or by cell-state transitions. Here we show that the induction of psoriasis in mice by IL-23 or imiquimod reconfigures a spectrum of skin ILCs, which converge on a pathogenic ILC3-like state. Tissue-resident ILCs were necessary and sufficient, in the absence of circulatory ILCs, to drive pathology. Single-cell RNA-sequencing (scRNA-seq) profiles of skin ILCs along a time course of psoriatic inflammation formed a dense transcriptional continuum-even at steady state-reflecting fluid ILC states, including a naive or quiescent-like state and an ILC2 effector state. Upon disease induction, the continuum shifted rapidly to span a mixed, ILC3-like subset also expressing cytokines characteristic of ILC2s, which we inferred as arising through multiple trajectories. We confirmed the transition potential of quiescent-like and ILC2 states using in vitro experiments, single-cell assay for transposase-accessible chromatin using sequencing (scATAC-seq) and in vivo fate mapping. Our results highlight the range and flexibility of skin ILC responses, suggesting that immune activities primed in healthy tissues dynamically adapt to provocations and, left unchecked, drive pathological remodelling.

Retinal fibrosis is one of the major features of diabetic retinopathy (DR). Our recent research has shown that Poldip2 can affect early DR through oxidative stress, but whether Poldip2 would regulate retinal fibrosis during DR development is still enigmatic. Here, diabetic Sprague-Dawley (SD) rats were induced with streptozotocin (STZ) and treated with adeno-associated virus serotype 9–polymerase-δ interacting protein 2 (Poldip2) shRNA, while human adult retinal pigment epithelial (ARPE-19) cells were treated with high glucose or Poldip2 siRNA. We identified that in STZ-induced DR rats and ARPE-19 cells treated with high glucose, the expression of Poldip2, transforming growth factor-β1 (TGF-β1), phosphorylated-SMAD3/SMAD3, MMP9, COL-1, FN, and CTGF increased while the expression of cadherin decreased. However, deleting Poldip2 inhibited the TGF-β1/SMAD3 signaling pathway and attenuated the above protein expression in vivo and in vitro. Mechanistically, we found that Poldip2 promotes the activation of SMAD3, facilitates its nuclear translocation through interacting with it, and significantly enhances the expression of fibrosis makers. Collectively, Poldip2 was identified is a novel regulator of DR fibrosis and is expected to become a therapeutic target for PDR. Article Highlights: To investigate the role of polymerase-δ interacting protein 2 (Poldip2) in retinal fibrosis during diabetic retinopathy (DR) development. Does Poldip2 regulate retinal fibrosis in DR, and what are the underlying mechanisms? Poldip2 upregulation in DR correlates with increased expression of fibrotic markers, while Poldip2 deletion inhibits the transforming growth factor-β1/SMAD3 pathway, reducing fibrosis-related protein levels. Poldip2 emerges as a novel regulator of DR fibrosis, suggesting therapeutic potential for treating proliferative diabetic retinopathy. [ABSTRACT FROM AUTHOR]

Fluorite, as a vital calcium-containing mineral, usually coexists with calcite. When using the traditional collector sodium oleate (NaOL), froth flotation could not separate fluorite and calcite well on account of their similar surface properties. Meanwhile, a large amount of sodium silicate (SS) needs to be added to depress calcite, resulting in difficulties in tailings settlement and wastewater treatment. Therefore, a nontoxic and inexpensive surfactant saponified tricarboxylic acid (TA) was developed as a new collector. The flotation test results showed that TA had a higher selectivity for fluorite than NaOL, leading to the selective separation of both minerals. Zeta potential measurements indicated that TA was negatively charged and was strongly adsorbed on fluorite due to electrostatic interactions at pH 9.0. FTIR, XPS, DFT, and crystal chemistry calculations revealed TA had a stronger chemical interaction with fluorite due to its higher surface Ca activity and density, forming a TA-Ca complex through the bidentate coordination. In contrast, the interaction of TA with calcite could be ignored. In addition, the results of the surface tension and dynamic foam stability tests revealed that TA possessed the excellent foam performance. Therefore, these properties give TA excessive potential for industrial application and environmental protection in fluorite flotation. Density and activity of Ca atoms on fluorite are higher than those on calcite. TA could selectively separate fluorite from calcite without any depressants. TA had a stronger chemical interaction with fluorite to form the Ca – TA complex. TA possesses excellent foam properties and suitable hydrophobicity. [ABSTRACT FROM AUTHOR]