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  1. Article: Iris domestica

    Zhang, Xiang / Zhu, Yan / Ye, Jun / Ye, Ziyu / Zhu, Ruirui / Xie, Guoyong / Zhao, Yucheng / Qin, Minjian

    Frontiers in plant science

    2021  Volume 12, Page(s) 632557

    Abstract: In many plants, isoflavones are the main secondary metabolites that have various pharmacological activities, but the low water solubility of aglycones limits their usage. The O-glycosylation of (iso)flavones is a promising way to overcome this barrier. O- ...

    Abstract In many plants, isoflavones are the main secondary metabolites that have various pharmacological activities, but the low water solubility of aglycones limits their usage. The O-glycosylation of (iso)flavones is a promising way to overcome this barrier. O-glycosyltransferases (UGTs) are key enzymes in the biosynthesis of (iso)flavonoid O-glycosides in plants. However, limited investigations on isoflavonoid O-UGTs have been reported, and they mainly focused on legumes.
    Language English
    Publishing date 2021-02-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711035-7
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2021.632557
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Study on the Correlation Between Iris Characteristics and Schizophrenia.

    Tian, Chunsheng / Duan, Li / Fu, Chunfeng / He, Juan / Dai, Jiali / Zhu, Gang

    Neuropsychiatric disease and treatment

    2022  Volume 18, Page(s) 811–820

    Abstract: ... of the retina and other eye structures on schizophrenia. This study aimed to evaluate differences in iris ... were included in the case group and the control group, respectively. Iris images were collected ... from all subjects to compare differences in the structure and color of the iris. The Positive and Negative Symptom ...

    Abstract Background: Recently, researchers have conducted many studies on the potential contribution of the retina and other eye structures on schizophrenia. This study aimed to evaluate differences in iris characteristics between patients with schizophrenia and healthy individuals so as to find more easily accessible and easily measurable biomarkers with a view to improving clinical assessments and furthering our understanding of the disease.
    Methods: Overall, 80 patients with schizophrenia and 52 healthy individuals were included in the case group and the control group, respectively. Iris images were collected from all subjects to compare differences in the structure and color of the iris. The Positive and Negative Symptom Scale (PANSS) and the Modified Overt Aggression Scale (MOAS) were used to evaluate the clinical symptoms and characteristics of 45 first-episode untreated schizophrenics, and analyzed correlations between iris characteristics and schizophrenia symptoms.
    Results: There were significant differences in iris crypts (
    Conclusion: Iris crypts and pigment spots were identified as potential biomarkers for detecting schizophrenia. In patients with first-episode untreated schizophrenia, iris characteristics may help psychiatrists to identify the illness and its severity, and to detect characteristic clinical symptoms.
    Language English
    Publishing date 2022-04-08
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2186503-6
    ISSN 1178-2021 ; 1176-6328
    ISSN (online) 1178-2021
    ISSN 1176-6328
    DOI 10.2147/NDT.S361614
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Traumatic dislocation of the iris into the vitreous cavity with intact lens: a case report.

    Xie, Hai-Nan / Chen, Lan-Lan / Wang, Rui / Zhu, Zhi-Hong / Huang, Hou-Bin

    BMC ophthalmology

    2023  Volume 23, Issue 1, Page(s) 362

    Abstract: Background: Traumatic aniridia occurs when the iris is extruded from the eye and is often ... accompanied by lens injuries. However, traumatic aniridia due to dislocation of the iris into the vitreous ... retina, and almost complete iris tissue in the vitreous cavity were found after resolution of hyphema ...

    Abstract Background: Traumatic aniridia occurs when the iris is extruded from the eye and is often accompanied by lens injuries. However, traumatic aniridia due to dislocation of the iris into the vitreous cavity without lens damage has never been reported.
    Case presentation: A 30-year-old man presented with visual loss and pain for 6 h after a thin wire injured his right eyeball. Ophthalmologic examinations manifested a 2 mm full-thickness corneal laceration and total hyphema. An intact clear lens, healthy attached retina, and almost complete iris tissue in the vitreous cavity were found after resolution of hyphema the next day. Further examination revealed that the defect in the zonule below the corneal wound was the path for the iris to enter the vitreous cavity. The patient opted for nonsurgical treatment until pigment granules and opacity were observed in the vitreous cavity after 50 days. Vitrectomy was performed to remove the dislocated iris.
    Conclusions: The presentation of this unique case indicates that the torn iris was displaced to the vitreous cavity with an intact lens and missing local zonula instead of out the corneal laceration after a penetrating injury. The type of injury, mechanism, and force on the spot may contribute to the occurrence of this rare condition. Instead of artificial irises, tinted glasses were more appropriate treatment option for this patient. Peripheral retinal examination was essential in the management of this case. In such cases, the iris in the vitreous cavity should be resected to prevent complications.
    MeSH term(s) Male ; Humans ; Adult ; Lacerations ; Hyphema ; Lens, Crystalline/surgery ; Iris/surgery ; Corneal Injuries/complications ; Corneal Injuries/diagnosis ; Corneal Injuries/surgery
    Language English
    Publishing date 2023-08-21
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2050436-6
    ISSN 1471-2415 ; 1471-2415
    ISSN (online) 1471-2415
    ISSN 1471-2415
    DOI 10.1186/s12886-023-03105-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Flower color polymorphism of a wild Iris on the Qinghai-Tibet plateau.

    Zhou, Zhi-Li / Wang, Guang-Yan / Wang, Xi-Long / Huang, Xiao-Juan / Zhu, Zhang-Shichang / Wang, Lin-Lin / Yang, Yong-Ping / Duan, Yuan-Wen

    BMC plant biology

    2023  Volume 23, Issue 1, Page(s) 633

    Abstract: ... between purple- and yellow- flower individuals in Iris potaninii on the Qinghai-Tibet Plateau, and ... of Iris potaninii, and the subsequent ecological and additive positive selection on yellow flowers ...

    Abstract Background: Flower color plays a crucial role in attracting pollinators and facilitating environmental adaptation. Investigating the causes of flower color polymorphism and understanding their potential effects on both ecology and genetics can enhance our understanding of flower color polymorphism in wild plant.
    Results: In this study, we examined the differences of potential male and female fitness between purple- and yellow- flower individuals in Iris potaninii on the Qinghai-Tibet Plateau, and screened key genes and positively selective genes involved in flower color change. Our results showed that yellow flower exhibited a higher pollen-to-ovule ratio. Yellow flowers were derived from purple flowers due to the loss of anthocyanins, and F3H could be an essential gene affecting flower color variation though expression regulation and sequence polymorphism in this species. Furthermore, our findings suggest that genes positively selected in yellow-flowered I. potaninii might be involved in nucleotide excision repair and plant-pathogen interactions.
    Conclusions: These results suggest that F3H induces the flower color variation of Iris potaninii, and the subsequent ecological and additive positive selection on yellow flowers may further enhance plant adaptations to alpine environments.
    MeSH term(s) Humans ; Iris Plant/genetics ; Iris Plant/metabolism ; Anthocyanins/genetics ; Anthocyanins/metabolism ; Tibet ; Polymorphism, Genetic ; Flowers/genetics ; Flowers/metabolism ; Color ; Pigmentation/genetics
    Chemical Substances Anthocyanins
    Language English
    Publishing date 2023-12-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2059868-3
    ISSN 1471-2229 ; 1471-2229
    ISSN (online) 1471-2229
    ISSN 1471-2229
    DOI 10.1186/s12870-023-04642-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Metagenomic analysis revealed N-metabolizing microbial response of Iris tectorum to Cr stress after colonization by arbuscular mycorrhizal fungi.

    Zhu, Sixi / Zhao, Wei / Sun, Suxia / Yang, Xiuqin / Mao, Huan / Sheng, Luying / Chen, Zhongbing

    Ecotoxicology and environmental safety

    2024  Volume 273, Page(s) 116157

    Abstract: ... of Iris tectorum. The results showed that AMF significantly increased the biomass and nutrient levels ...

    Abstract Arbuscular mycorrhizal fungi (AMF) and plant growth-promoting bacteria enhance plant tolerance to abiotic stress and promote plant growth in contaminated soil. However, the interaction mechanism between rhizosphere microbial communities under chromium (Cr) stress remains unclear. This study conducted a greenhouse pot experiment and metagenomics analysis to reveal the comprehensive effects of the interaction between AMF (Rhizophagus intraradices) and nitrogen-N metabolizing plant growth promoters on the growth of Iris tectorum. The results showed that AMF significantly increased the biomass and nutrient levels of I. tectorum in contaminated soil and decreased the content of Cr in the soil. Metagenomics analysis revealed that the structure and composition of the rhizosphere microbial community involved in nitrogen metabolism changed significantly after inoculation with AMF under Cr stress. Functional genes related to soil nitrogen mineralization (gltB, gltD, gdhA, ureC, and glnA), nitrate reduction to ammonium (nirB, nrfA, and nasA), and soil nitrogen assimilation (NRT, nrtA, and nrtC) were up-regulated in the N-metabolizing microbial community. In contrast, the abundance of functional genes involved in denitrification (nirK and narI) was down-regulated. In addition, the inoculation of AMF regulates the synergies between the N-metabolic rhizosphere microbial communities and enhances the complexity and stability of the rhizosphere ecological network. This study provides a basis for improving plant tolerance to heavy metal stress by regulating the functional abundance of N-metabolizing plant growth-promoting bacteria through AMF inoculation. It helps to understand the potential mechanism of wetland plant remediation of Cr-contaminated soil.
    MeSH term(s) Mycorrhizae/metabolism ; Chromium/metabolism ; Iris Plant/genetics ; Plants ; Bacteria ; Soil/chemistry ; Nitrogen/metabolism ; Plant Roots ; Fungi
    Chemical Substances Chromium (0R0008Q3JB) ; Soil ; Nitrogen (N762921K75)
    Language English
    Publishing date 2024-03-01
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2024.116157
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Supervised Contrastive Learning and Intra-Dataset Adversarial Adaptation for Iris Segmentation.

    Zhou, Zhiyong / Liu, Yuanning / Zhu, Xiaodong / Liu, Shuai / Zhang, Shaoqiang / Li, Yuanfeng

    Entropy (Basel, Switzerland)

    2022  Volume 24, Issue 9

    Abstract: Precise iris segmentation is a very important part of accurate iris recognition. Traditional iris ... because of the difficulty in collecting and labeling irises. Furthermore, previous approaches ignore the large distribution ... gap within the non-ideal iris dataset due to illumination, motion blur, squinting eyes, etc ...

    Abstract Precise iris segmentation is a very important part of accurate iris recognition. Traditional iris segmentation methods require complex prior knowledge and pre- and post-processing and have limited accuracy under non-ideal conditions. Deep learning approaches outperform traditional methods. However, the limitation of a small number of labeled datasets degrades their performance drastically because of the difficulty in collecting and labeling irises. Furthermore, previous approaches ignore the large distribution gap within the non-ideal iris dataset due to illumination, motion blur, squinting eyes, etc. To address these issues, we propose a three-stage training strategy. Firstly, supervised contrastive pretraining is proposed to increase intra-class compactness and inter-class separability to obtain a good pixel classifier under a limited amount of data. Secondly, the entire network is fine-tuned using cross-entropy loss. Thirdly, an intra-dataset adversarial adaptation is proposed, which reduces the intra-dataset gap in the non-ideal situation by aligning the distribution of the hard and easy samples at the pixel class level. Our experiments show that our method improved the segmentation performance and achieved the following encouraging results: 0.44%, 1.03%, 0.66%, 0.41%, and 0.37% in the
    Language English
    Publishing date 2022-09-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e24091276
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Phenolic constituents with anti-inflammatory and cytotoxic activities from the rhizomes of Iris domestica.

    Liu, Kai-Dong / Yang, Wan-Qi / Dai, Ming-Zhu / Xu, Yong / Qin, Yun-Peng / Dong, Ying-Ying / Fu, Jiang / Qu, Jing

    Phytochemistry

    2022  Volume 203, Page(s) 113370

    Abstract: ... A); and seventeen known compounds were isolated from the rhizomes of Iris domestica ...

    Abstract Four undescribed flavonoid glucosides (iridins B-C, tectoridin A and ampelopsinin A); one undescribed phenolic glucoside (diplostephioside B); one undescribed phenolic compound (phenanthrenetriol A); and seventeen known compounds were isolated from the rhizomes of Iris domestica. The chemical structures of the undescribed compounds were established by spectroscopic/spectrometric data interpretation using HRESIMS, NMR, and ECD. Tectoridin A, nigricin A and naringenin exhibited anti-inflammatory activities with inhibition rates of 53.71%, 57.68% and 88.71%, respectively, against the NF-κB signaling pathway at a concentration of 10 μM. 4'-O-methylnyasol (10 μM) exhibited 84.91% antiproliferative activity against the K562 human leukemia cell line with an IC
    MeSH term(s) Anti-Inflammatory Agents/pharmacology ; Antineoplastic Agents/pharmacology ; Flavonoids/analysis ; Glucosides/chemistry ; Humans ; Iris Plant/chemistry ; Molecular Structure ; NF-kappa B ; Phenols ; Rhizome/chemistry
    Chemical Substances 4'-O-methylnyasol ; Anti-Inflammatory Agents ; Antineoplastic Agents ; Flavonoids ; Glucosides ; NF-kappa B ; Phenols
    Language English
    Publishing date 2022-08-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 208884-8
    ISSN 1873-3700 ; 0031-9422
    ISSN (online) 1873-3700
    ISSN 0031-9422
    DOI 10.1016/j.phytochem.2022.113370
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A novel pupilloplasty in crescent-shaped suturing pattern for coloboma and traumatic iris defects.

    Yao, Xiaoming / Kang, Qian / Qi, Wei / Liu, Yuan / Zhou, Xiaoping / Wang, Mingwu / Yang, Yukun / Zhu, Fengjiao / Cao, Wenchao

    BMC ophthalmology

    2023  Volume 23, Issue 1, Page(s) 119

    Abstract: ... of iris coloboma and traumatic iris defects.: Methods: A total of 21 cases (21 eyes) with iris coloboma ... or traumatic iris defects who underwent C-pupilloplasty (a single-pass three-throw technique ... treatment for iris coloboma and traumatic iris defect. ...

    Abstract Objective: PURPOSE: To observe the safety and effect of the C-pupilloplasty for the treatment of iris coloboma and traumatic iris defects.
    Methods: A total of 21 cases (21 eyes) with iris coloboma or traumatic iris defects who underwent C-pupilloplasty (a single-pass three-throw technique) from Feb. 2016 to Mar. 2020 were analyzed retrospectively. Uncorrected visual acuity, refraction, corneal topographic keratometry and endothelial cell density were examined.
    Results: All the patients were successfully treated, and a central and round pupil was restored. The mean follow-up duration was 8.76 ± 3.58 months (ranging from 2 to 14 months). All patients had round or round-like pupils with a diameter less than or equal to 3 mm after the C-pupilloplasty. Very slightly endothelial loss, negligible symptoms such as glare, distortion, dizziness and photophobia were observed.
    Conclusion: We introduced a new technique of pupilloplasty (C-pupilloplasty) which could be a more straight forward and more effective treatment for iris coloboma and traumatic iris defect.
    MeSH term(s) Humans ; Coloboma/surgery ; Retrospective Studies ; Iris/surgery ; Pupil ; Ophthalmologic Surgical Procedures/methods ; Iris Diseases/surgery
    Language English
    Publishing date 2023-03-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2050436-6
    ISSN 1471-2415 ; 1471-2415
    ISSN (online) 1471-2415
    ISSN 1471-2415
    DOI 10.1186/s12886-023-02853-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Response characteristics of rhizosphere microbial community and metabolites of Iris tectorum to Cr stress.

    Sheng, Luying / Zhao, Wei / Yang, Xiuqin / Mao, Huan / Zhu, Sixi

    Ecotoxicology and environmental safety

    2023  Volume 263, Page(s) 115218

    Abstract: ... understood. In this study, we used Iris tectorum as a research target and combined physiology, metabolomics ...

    Abstract Chromium (Cr) is a toxic heavy element that interferes with plant metabolite biosynthesis and modifies the plant rhizosphere microenvironment, affecting plant growth. However, the interactions and response mechanisms between plants and rhizosphere bacteria under Cr stress still need to be fully understood. In this study, we used Iris tectorum as a research target and combined physiology, metabolomics, and microbiology to reveal the stress response mechanism of I. tectorum under heavy metal chromium stress. The results showed that Cr stress-induced oxidative stress inhibited plant growth and development and increased malondialdehyde and oxygen free radicals content. Also, it increased ascorbate peroxidase, peroxidase activity, and superoxide dismutase activity, as well as glutathione and soluble sugar content. Microbiome analysis showed that Cr stress changed the rhizosphere bacterial community diversity index by 33.56%. Proteobacteria, Actinobacteriota, and Chloroflexi together accounting for 71.21% of the total sequences. Meanwhile, the abundance of rhizosphere dominant and plant-promoting bacteria increased significantly with increasing time of Cr stress. The improvement of the soil microenvironment and the recruitment of bacteria by I. tectorum root secretions were significantly enhanced. By metabolomic analysis, five vital metabolic pathways were identified, involving 89 differentially expressed metabolites, divided into 15 major categories. In summary, a multi-omics approach was used in this study to reveal the interaction and stress response mechanisms between I. tectorum and rhizosphere bacterial communities under Cr stress, which provided theoretical basis for plant-microbial bioremediation of Cr-contaminated soils in constructed wetlands. This may provide more valuable information for wetland remediation of heavy metal pollution.
    MeSH term(s) Chromium/toxicity ; Chromium/metabolism ; Iris Plant/metabolism ; Rhizosphere ; Soil Microbiology ; Metals, Heavy/toxicity ; Bacteria/metabolism ; Microbiota ; Soil ; Soil Pollutants/analysis
    Chemical Substances Chromium (0R0008Q3JB) ; Metals, Heavy ; Soil ; Soil Pollutants
    Language English
    Publishing date 2023-07-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2023.115218
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Association between Iris Biological Features and Corneal Biomechanics in Myopic Eyes.

    Fu, Lin / Dai, Qi / Zhu, Pengzhi / Jia, Xu / Bao, Fangjun / Chen, Xiaoyu / Fu, Yana / Lian, Hengli / Yang, Weihua / Ye, Yufeng

    Disease markers

    2021  Volume 2021, Page(s) 5866267

    Abstract: Purpose: Iris biological features such as surface features and profile characteristics reflected ... the development of iris stroma and microvessels. Iris vessels and microcirculation are still lack of effective ... detection methods, and we can directly observe only the iris surface biological characteristics ...

    Abstract Purpose: Iris biological features such as surface features and profile characteristics reflected the development of iris stroma and microvessels. Iris vessels and microcirculation are still lack of effective detection methods, and we can directly observe only the iris surface biological characteristics. This cross-sectional study evaluated the association between iris surface biological features and corneal biomechanics in young adults with myopia.
    Methods: We recruited 152 patients with myopia aged ≥18 years, from the Eye Hospital of Wenzhou Medical University, who had complete Corneal Visualization Scheimpflug Technology (Corvis ST) data and graded iris surface features. Iris surface features included crypts, furrows, and color measured from digital slit lamp images. The biomechanical properties of the cornea were assessed using Corvis ST. Only 1 eye of each participant was randomly selected for analysis. Associations between the iris surface features and corneal biomechanics were analyzed using linear regression models. The grade of iris crypts, furrows, and color and corneal biomechanical parameters measured with Corvis ST was the main outcome measures.
    Results: The iris crypts were significantly associated with deflection amplitude at the first applanation (A1 DLA,
    Conclusions: Iris surface features were associated with corneal biomechanical properties in myopic eyes; more iris crypts were associated with lower corneal stiffness while more extensive furrows were related with higher corneal stiffness. Iris crypts and furrows may provide useful information on corneal biomechanical properties in myopic eyes.
    MeSH term(s) Adult ; Biomechanical Phenomena ; Cornea/physiopathology ; Cross-Sectional Studies ; Female ; Follow-Up Studies ; Humans ; Iris/physiopathology ; Male ; Myopia/physiopathology ; Prognosis ; Prospective Studies
    Language English
    Publishing date 2021-11-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604951-5
    ISSN 1875-8630 ; 0278-0240
    ISSN (online) 1875-8630
    ISSN 0278-0240
    DOI 10.1155/2021/5866267
    Database MEDical Literature Analysis and Retrieval System OnLINE

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