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  1. Article ; Online: Frontiers of Ocular Surface Regenerative Medicine.

    Jester, James V

    The ocular surface

    2016  Volume 14, Issue 2, Page(s) 81

    MeSH term(s) Conjunctiva/physiology ; Cornea/physiology ; Humans ; Limbus Corneae/cytology ; Regeneration/physiology ; Regenerative Medicine ; Stem Cells/physiology
    Language English
    Publishing date 2016-03-02
    Publishing country United States
    Document type Editorial
    ZDB-ID 2208578-6
    ISSN 1937-5913 ; 1542-0124
    ISSN (online) 1937-5913
    ISSN 1542-0124
    DOI 10.1016/j.jtos.2016.02.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Evaluating the effect of pulse energy on femtosecond laser trabeculotomy (FLT) outflow channels for glaucoma treatment in human cadaver eyes.

    Luo, Shangbang / Mikula, Eric R / Khazaeinezhad, Reza / Bradford, Samantha M / Zhang, Fengyi / Jester, James V / Juhasz, Tibor

    Lasers in surgery and medicine

    2024  Volume 56, Issue 4, Page(s) 382–391

    Abstract: Background and objectives: Femtosecond laser trabeculotomy (FLT) creates aqueous humor outflow channels through the trabecular meshwork (TM) and is an emerging noninvasive treatment for open-angle glaucoma. The purpose of this study is to investigate ... ...

    Abstract Background and objectives: Femtosecond laser trabeculotomy (FLT) creates aqueous humor outflow channels through the trabecular meshwork (TM) and is an emerging noninvasive treatment for open-angle glaucoma. The purpose of this study is to investigate the effect of pulse energy on outflow channel creation during FLT.
    Materials and methods: An FLT laser (ViaLase Inc.) was used to create outflow channels through the TM (500 μm wide by 200 μm high) in human cadaver eyes using pulse energies of 10, 15, and 20 μJ. Following treatment, tissues were fixed in 4% paraformaldehyde. The channels were imaged using optical coherence tomography (OCT) and assessed as full thickness, partial thickness, or not observable.
    Results: Pulse energies of 15 and 20 μJ had a 100% success rate in creating full-thickness FLT channels as imaged by OCT. A pulse energy of 10 μJ resulted in no channels (n = 6), a partial-thickness channel (n = 2), and a full-thickness FLT channel (n = 2). There was a statistically significant difference in cutting widths between the 10 and 15 μJ groups (p < 0.0001), as well as between the 10 and 20 μJ groups (p < 0.0001). However, there was no statistically significant difference between the 15 and 20 μJ groups (p = 0.416).
    Conclusions: Fifteen microjoules is an adequate pulse energy to reliably create aqueous humor outflow channels during FLT in human cadaver eyes. OCT is a valuable tool when evaluating FLT.
    MeSH term(s) Humans ; Trabeculectomy/methods ; Glaucoma, Open-Angle/surgery ; Intraocular Pressure ; Lasers ; Cadaver
    Language English
    Publishing date 2024-04-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604493-1
    ISSN 1096-9101 ; 0196-8092
    ISSN (online) 1096-9101
    ISSN 0196-8092
    DOI 10.1002/lsm.23783
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  3. Article ; Online: The Yin and Yang of non-immune and immune responses in meibomian gland dysfunction.

    Beatty, Cole J / Ruiz-Lozano, Raul E / Quiroga-Garza, Manuel E / Perez, Victor L / Jester, James V / Saban, Daniel R

    The ocular surface

    2024  Volume 32, Page(s) 81–90

    Abstract: Meibomian gland dysfunction (MGD) is a leading cause of dry eye disease and one of the most common ophthalmic conditions encountered in eye clinics worldwide. These holocrine glands are situated in the eyelid, where they produce specialized lipids, or ... ...

    Abstract Meibomian gland dysfunction (MGD) is a leading cause of dry eye disease and one of the most common ophthalmic conditions encountered in eye clinics worldwide. These holocrine glands are situated in the eyelid, where they produce specialized lipids, or meibum, needed to lubricate the eye surface and slow tear film evaporation - functions which are critical to preserving high-resolution vision. MGD results in tear instability, rapid tear evaporation, changes in local microflora, and dry eye disease, amongst other pathological entities. While studies identifying the mechanisms of MGD have generally focused on gland obstruction, we now know that age is a major risk factor for MGD that is associated with abnormal cell differentiation and renewal. It is also now appreciated that immune-inflammatory disorders, such as certain autoimmune diseases and atopy, may trigger MGD, as demonstrated through a T cell-driven neutrophil response. Here, we independently discuss the underlying roles of gland and immune related factors in MGD, as well as the integration of these two distinct mechanisms into a unified perspective that may aid future studies. From this unique standpoint, we propose a revised model in which glandular dysfunction and immunopathogenic pathways are not primary versus secondary contributors in MGD, but are fluid, interactive, and dynamic, which we likened to the Yin and Yang of MGD.
    MeSH term(s) Humans ; Meibomian Gland Dysfunction/immunology ; Meibomian Glands/immunology ; Meibomian Glands/pathology ; Meibomian Glands/metabolism ; Tears/metabolism ; Dry Eye Syndromes/immunology ; Dry Eye Syndromes/physiopathology
    Language English
    Publishing date 2024-01-14
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2208578-6
    ISSN 1937-5913 ; 1542-0124
    ISSN (online) 1937-5913
    ISSN 1542-0124
    DOI 10.1016/j.jtos.2024.01.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Modeling meibum secretion: Alternatives for obstructive Meibomian Gland Dysfunction (MGD).

    Luo, Shangbang / Djotyan, Gagik P / Joshi, Rohan / Juhasz, Tibor / Brown, Donald J / Jester, James V

    The ocular surface

    2023  Volume 31, Page(s) 56–62

    Abstract: Purpose: While changes in meibum quality are correlated with severity of meibomian gland dysfunction (MGD) and dry eye disease, little is known regarding the mechanics of meibum secretion. The purpose of this study was to develop a finite element model ... ...

    Abstract Purpose: While changes in meibum quality are correlated with severity of meibomian gland dysfunction (MGD) and dry eye disease, little is known regarding the mechanics of meibum secretion. The purpose of this study was to develop a finite element model of meibum secretion and evaluate the effect of various factors that might impact meibum delivery to the ocular surface.
    Methods: A finite element analysis in COMSOL 6.0 was used to simulate the flow of meibum within the gland's terminal excretory duct. Historical normal human meibum rheology data taken over the meibum melting range from fluid (35-40 °C) to solid (25-30 °C) were then used to calculate the minimum yield stress and plastic viscosity of meibum. The effects of meibum melting state, eyelid pressure and terminal duct diameter on meibum flow rates were then systematically investigated.
    Results: The melting state of meibum from liquid to solid was associated with an increase in the minimum yield stress and plastic viscosity that caused an exponential decrease in meibum flow. Modeling also established that there was a linear correlation between meibum flow rate and eyelid pressure needed to express meibum and the 4th power of the terminal duct radius.
    Conclusions: Our results suggest that changes in the melting state of meibum from fluid to solid, as well as changes in the radius of the terminal excretory duct and the force exerted by the eyelid can lead to dramatic decreases in the flow of meibum. Together these findings suggest alternative mechanisms for meibomian gland obstruction.
    MeSH term(s) Humans ; Meibomian Gland Dysfunction ; Tears ; Eyelid Diseases ; Meibomian Glands ; Dry Eye Syndromes
    Language English
    Publishing date 2023-12-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2208578-6
    ISSN 1937-5913 ; 1542-0124
    ISSN (online) 1937-5913
    ISSN 1542-0124
    DOI 10.1016/j.jtos.2023.11.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Meibomian gland stem/progenitor cells: The hunt for gland renewal.

    Yang, Xiaowei / Reneker, Lixing W / Zhong, Xingwu / Huang, Andrew J W / Jester, James V

    The ocular surface

    2023  Volume 29, Page(s) 497–507

    Abstract: Meibomian glands (MGs) secrete lipid (meibum) onto the ocular surface to form the outermost layer of the tear film. Proper meibum secretion is essential for stabilizing the tear film, reducing aqueous tear evaporation, and maintaining the homeostasis of ... ...

    Abstract Meibomian glands (MGs) secrete lipid (meibum) onto the ocular surface to form the outermost layer of the tear film. Proper meibum secretion is essential for stabilizing the tear film, reducing aqueous tear evaporation, and maintaining the homeostasis of the ocular surface. Atrophy of MG as occurs with aging, leads to reduction of meibum secretion, loss of ocular surface homeostasis and evaporative dry eye disease (EDED). Since MGs are holocrine glands, secretion of meibum requires continuous self-renewal of lipid-secreting acinar meibocytes by stem/progenitor cells, whose proliferative potential is dramatically reduced with age leading to MG atrophy and an age-related meibomian gland dysfunction (ARMGD). Understanding the cellular and molecular mechanisms regulating meibocyte stem/progenitor cell maintenance and renewal may provide novel approaches to regenerating MG and treating EDED. Towards that end, recent label retaining cell and lineage-tracing experiments as well as knock-out transgenic mouse studies have begun to identify the location and identities of meibocyte progenitor cells and potential growth and transcription factors that may regulate meibocyte renewal. In addition, recent reports have shown that ARMGD may be reversed by novel therapeutics in mice. Herein, we discuss our current understanding of meibocyte stem/progenitor cells and the hunt for gland renewal.
    MeSH term(s) Animals ; Mice ; Meibomian Glands/pathology ; Tears/physiology ; Dry Eye Syndromes ; Stem Cells ; Lipids/physiology ; Atrophy/pathology
    Chemical Substances Lipids
    Language English
    Publishing date 2023-07-06
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2208578-6
    ISSN 1937-5913 ; 1542-0124
    ISSN (online) 1937-5913
    ISSN 1542-0124
    DOI 10.1016/j.jtos.2023.07.004
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  6. Article ; Online: Immuno Tomography (IT) and Imaging Mass Cytometry (IMC) for constructing spatially resolved, multiplexed 3D IMC data sets.

    Gheiratmand, Ladan / Brown, Donald J / Sandkuijl, Daaf / Loboda, Alexander / Jester, James V

    The ocular surface

    2022  Volume 25, Page(s) 49–54

    Abstract: Purpose: We have previously used Immuno Tomography (IT) to identify label-retaining stem cell populations in the cornea and meibomian gland. While this method provides the unique ability to quantify stem cell populations comprised of 1-4 cells, the ... ...

    Abstract Purpose: We have previously used Immuno Tomography (IT) to identify label-retaining stem cell populations in the cornea and meibomian gland. While this method provides the unique ability to quantify stem cell populations comprised of 1-4 cells, the number of antigens that can be sequentially used to characterize these unique cells is limited by antigen stability after antibody stripping and re-probing. To address this deficiency, we have evaluated the capability of Imaging Mass Cytometry™ (IMC™) to generate multiplexed images using metal-conjugated antibodies to label IT plastic sections and generate 3-dimensional IMC data sets (3D IMC).
    Methods: K5-H2B-GFP mice, 56 days after doxycycline chase, were sacrificed and eyelid tissue processed for IT. A total of 400 serial, plastic sections, 2 μm thick, were then probed using metal-tagged antibodies specific for sox 9, collagen type I, E-cadherin, Ki67, GFP, αSMA, vimentin, and DNA intercalator. Multiplexed images were then generated using an Imaging Mass Cytometry system (Fluidigm®), and 3D reconstructions were assembled.
    Results: All 8 metal-labeled tags were detected and their images were successfully assembled into 3D IMC data sets. GFP-labeled nuclei were identified within the meibomian glands in comparable numbers to those previously reported for slow-cycling meibomian gland stem cells.
    Conclusions: These findings demonstrate that IMC can be used on plastic sections to generate multiplexed, 3D data sets that can be reconstructed to show the spatial localization of meibomian gland stem cells. We propose that 3D IMC might prove valuable in more fully characterizing stem cell populations in different tissues.
    MeSH term(s) Animals ; Image Cytometry ; Imaging, Three-Dimensional/methods ; Meibomian Glands/metabolism ; Mice ; Plastics/metabolism ; Stem Cells
    Chemical Substances Plastics
    Language English
    Publishing date 2022-04-28
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2208578-6
    ISSN 1937-5913 ; 1542-0124
    ISSN (online) 1937-5913
    ISSN 1542-0124
    DOI 10.1016/j.jtos.2022.04.008
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  7. Article ; Online: Ascorbic acid specifically reduces the misclassification of nonirritating reactive chemicals in the OptiSafe™ macromolecular eye irritation test.

    Lebrun, Stewart / Chavez, Sara / Chan, Roxanne / Nguyen, Linda / Jester, James V

    Toxicology in vitro : an international journal published in association with BIBRA

    2022  Volume 80, Page(s) 105313

    Abstract: Recently, we showed that the addition of physiological concentrations of ascorbic acid, a tear antioxidant, to the OptiSafe™ macromolecular eye irritation test reduced the false-positive (FP) rate for chemicals that had reactive chemistries, leading to ... ...

    Abstract Recently, we showed that the addition of physiological concentrations of ascorbic acid, a tear antioxidant, to the OptiSafe™ macromolecular eye irritation test reduced the false-positive (FP) rate for chemicals that had reactive chemistries, leading to the formation of reactive oxygen species (ROS) and molecular crosslinking. The purpose of the current study was to 1) increase the number of chemicals tested to comprehensibly determine whether the antioxidant-associated reduction in OD is specific to FP chemicals associated with ROS chemistries and 2) determine whether the addition of antioxidants interferes with the detection of true positive (TP) and true negative (TN) ocular irritants. We report that when ascorbic acid is added to the test reagents, retesting of FP chemicals with reactive chemistries show significantly reduced OD values (P < 0.05). Importantly, ascorbic acid had no significant effect on the OD values of TP or TN chemicals regardless of chemical reactivity. These findings suggest that supplementation of ascorbic acid in alternative ocular irritation tests may help improve the detection of TN for those commonly misclassified reactive chemicals.
    MeSH term(s) Animals ; Antioxidants/chemistry ; Ascorbic Acid/chemistry ; Cattle ; Chickens ; Eye/drug effects ; False Positive Reactions ; Irritants/classification ; Irritants/toxicity ; Toxicity Tests/methods
    Chemical Substances Antioxidants ; Irritants ; Ascorbic Acid (PQ6CK8PD0R)
    Language English
    Publishing date 2022-01-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 639064-x
    ISSN 1879-3177 ; 0887-2333
    ISSN (online) 1879-3177
    ISSN 0887-2333
    DOI 10.1016/j.tiv.2022.105313
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  8. Article ; Online: Induction of meibocyte differentiation by three-dimensional, matrigel culture of immortalized human meibomian gland epithelial cells to form acinar organoids.

    Nuwormegbe, Selikem / Park, Na-Young / Park, Hee Joo / Jin, Yeonwoo / Kim, Sun Woong / Jester, James V

    The ocular surface

    2022  Volume 26, Page(s) 271–282

    Abstract: Purpose: Recent studies have shown that two-dimensional (2D) culture of primary rabbit and immortalized human meibomian gland epithelial cells (iHMGEC) do not recapitulate normal meibocyte differentiation and fail to express critical enzymes necessary ... ...

    Abstract Purpose: Recent studies have shown that two-dimensional (2D) culture of primary rabbit and immortalized human meibomian gland epithelial cells (iHMGEC) do not recapitulate normal meibocyte differentiation and fail to express critical enzymes necessary for synthesis of meibum lipids. The purpose of this study was to test the hypothesis that 3D-spheroid culture of iHMGEC can facilitate meibocyte differentiation and induce the expression of acyl-CoA wax-alcohol acyltransferase 2 (AWAT2), shown to be required for synthesis of meibum wax esters.
    Methods: iHMGEC were suspended in matrigel/basement membrane matrix and grown in proliferation media to form distinct cell clusters or spheroids. Cells were then treated with serum-free, differentiation media (advanced DMEM/F12) with and without FGF10 and synthetic agonists for the nuclear lipid receptor, peroxisome proliferator activator receptor gamma (PPARγ). Cells were then evaluated for differentiation markers using western blotting, immunocytochemistry (ICC) and real-time PCR. Control cells were grown in standard 2D culture systems.
    Results: Under proliferative conditions, 3D culture induced the formation of KRT5+ spheroids that contained a Ki67+/P63+ undifferentiated, basal cell population. When spheroids were switched to differentiation media containing PPARγ agonists, two different organoid populations were detected, a KRT6
    Conclusion: The 3D culturing of iHMGEC can induce the formation of both meibocyte and ductal organoids and may thus serve as a better in vitro model system for studying the regulatory mechanisms controlling meibomian gland function.
    MeSH term(s) Humans ; Cell Differentiation ; Epithelial Cells/cytology ; Meibomian Glands/cytology ; Organoids/cytology ; PPAR gamma/physiology
    Chemical Substances matrigel (119978-18-6) ; PPAR gamma
    Language English
    Publishing date 2022-10-27
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2208578-6
    ISSN 1937-5913 ; 1542-0124
    ISSN (online) 1937-5913
    ISSN 1542-0124
    DOI 10.1016/j.jtos.2022.10.004
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  9. Article ; Online: Differences in Social Determinants of Health Underlie Racial/Ethnic Disparities in Psychological Health and Well-Being: Study of 11,143 Older Adults.

    Jester, Dylan J / Kohn, Jordan N / Tibiriçá, Lize / Thomas, Michael L / Brown, Lauren L / Murphy, James D / Jeste, Dilip V

    The American journal of psychiatry

    2023  Volume 180, Issue 7, Page(s) 483–494

    Abstract: Objective: The authors sought to determine the impact of selected social determinants of health (SDoH) on psychological health and well-being (defined as depression, cognition, and self-rated health) among Black and Hispanic/Latinx adults relative to ... ...

    Abstract Objective: The authors sought to determine the impact of selected social determinants of health (SDoH) on psychological health and well-being (defined as depression, cognition, and self-rated health) among Black and Hispanic/Latinx adults relative to White adults 51-89 years of age.
    Methods: Disparities in depressive symptomatology, cognition, and self-rated health were measured among 2,306 non-Hispanic/Latinx Black, 1,593 Hispanic/Latinx, and 7,244 non-Hispanic/Latinx White adults who participated in the Health and Retirement Study (N=11,143). Blinder-Oaxaca decomposition was used to examine whether differences in selected SDoH explained a larger share of the disparities than age, sex, measures of health, health behaviors, and health care utilization. Selected SDoH included education, parental education, number of years worked, marital status, veteran status, geographic residence, nativity status, income, and insurance coverage.
    Results: Black and Hispanic/Latinx adults reported worse depressive symptomatology, cognition, and self-rated health than White adults. Selected SDoH were associated with a larger proportion of the Black-White disparities in depressive symptomatology (51%), cognition (39%), and self-rated health (37%) than were age, sex, measures of health, health behaviors, and health care utilization. SDoH were associated with a larger proportion of the Hispanic/Latinx-White disparity in cognition (76%) and self-rated health (75%), but age and physical health correlated with the disparity in depressive symptomatology (28%). Education, parental education, years worked, income, and insurance parity were SDoH associated with these disparities.
    Conclusions: Differences in SDoH underlie racial/ethnic disparities in depression, cognition, and self-rated health among older adults. Education, income, number of years worked, and insurance parity are key SDoH.
    MeSH term(s) Aged ; Humans ; Black or African American/psychology ; Black or African American/statistics & numerical data ; Ethnicity/psychology ; Health Status Disparities ; Hispanic or Latino/psychology ; Hispanic or Latino/statistics & numerical data ; Mental Health/ethnology ; Mental Health/statistics & numerical data ; Racial Groups/psychology ; Racial Groups/statistics & numerical data ; Social Determinants of Health/ethnology ; Social Determinants of Health/statistics & numerical data ; White People/psychology ; White People/statistics & numerical data ; Middle Aged ; Aged, 80 and over ; Depression/epidemiology ; Depression/ethnology ; Depression/psychology
    Language English
    Publishing date 2023-04-11
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 280045-7
    ISSN 1535-7228 ; 0002-953X
    ISSN (online) 1535-7228
    ISSN 0002-953X
    DOI 10.1176/appi.ajp.20220158
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  10. Article ; Online: Response to Letter to Editor "Comments on 'Cell regulation of collagen fibril macrostructure during corneal morphogenesis' by Koudouna et al."

    Koudouna, Elena / Mikula, Eric / Brown, Donald J / Young, Robert D / Quantock, Andrew J / Jester, James V

    Acta biomaterialia

    2021  Volume 136, Page(s) 594–595

    Abstract: STATEMENT OF SIGNIFICANCE:  . ...

    Abstract STATEMENT OF SIGNIFICANCE:  .
    MeSH term(s) Collagen ; Cornea ; Extracellular Matrix ; Morphogenesis
    Chemical Substances Collagen (9007-34-5)
    Language English
    Publishing date 2021-10-02
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 2173841-5
    ISSN 1878-7568 ; 1742-7061
    ISSN (online) 1878-7568
    ISSN 1742-7061
    DOI 10.1016/j.actbio.2021.09.061
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