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Eyelid expression

Franziska Vielmuth, Vera Rötzer, Eva Hartlieb, Christoph Hirneiß, Jens Waschke, Volker Spindler
Purpose: The autoimmune blistering skin disease pemphigus vulgaris (PV) is caused by autoantibodies against desmosomal adhesion molecules. Patients may suffer conjunctival involvement, yet the underlying mechanisms are largely unclear. We characterized human and murine conjunctiva with respect to the PV autoantigens, and evaluated the effects and mechanisms of PV autoantibodies applied to human conjunctiva ex vivo. Methods: We obtained human conjunctiva specimens from surgical explants and established a short-term culture model to study the alterations induced by antibody fractions of PV patients (PV-IgG)...
August 1, 2016: Investigative Ophthalmology & Visual Science
Frederick A Jakobiec, Anna M Stagner, Natalie Homer, Michael K Yoon
PURPOSE: To further define the histopathologic features of breast carcinoma conducive to orbital metastasis. METHODS: Ten new female patients with orbital or eyelid breast cancer metastases encountered between 2011 and 2016 had their medical records reviewed for determining their clinical characteristics. Microscopic glass slides from biopsies and immunohistochemical test results were also analyzed. Biomarkers studied included cytokeratin 7, nuclear estrogen and progesterone receptors, HER2, and E-cadherin...
October 5, 2016: Ophthalmic Plastic and Reconstructive Surgery
Sara Hintze, Samantha Smith, Antonia Patt, Iris Bachmann, Hanno Würbel
Finding valid indicators of emotional states is one of the biggest challenges in animal welfare science. Here, we investigated in horses whether variation in the expression of eye wrinkles caused by contraction of the inner eyebrow raiser reflects emotional valence. By confronting horses with positive and negative conditions, we aimed to induce positive and negative emotional states, hypothesising that positive emotions would reduce whereas negative emotions would increase eye wrinkle expression. Sixteen horses were individually exposed in a balanced order to two positive (grooming, food anticipation) and two negative conditions (food competition, waving a plastic bag)...
2016: PloS One
L C Wu, C Liu, M R Jiang, Y M Jiang, Q H Wang, Z Y Lu, S J Wang, W L Yang, Y X Shao
Development of the eyelid requires coordination of the cellular processes involved in proliferation, cell size alteration, migration, and cell death. C57BL/6J-corneal opacity (B6-Co) mice are mutant mice generated by the administration of N-ethyl-N-nitrosourea (100 mg/kg). They exhibit the eyelids open at birth phenotype, abnormal round cell shape from tightened F-actin bundles in leading edge keratinocytes at E16.5, and gradual corneal opacity with neovessels. The tip of the leading edge in B6-Co mice did not move forward, and demonstrated a sharp peak shape without obvious directionality...
August 26, 2016: Genetics and Molecular Research: GMR
Akiko Kanzaki, Yoko Funasaka, Munenaga Nakamizo, Ayaka Shima, Takeshi Ryotokuji, Kazuo Dan, Mika Terasaki, Yuichi Sugisaki, Yu Fukuda, Seiji Kawana, Hidehisa Saeki
Extranodal natural killer/T-cell lymphoma (ENK/TCL) is most often in the nose or the nasopharynx but can present elsewhere. We report a rare case of ENK/TCL that presented as swelling of an upper eyelid without ocular involvement. A 76-year-old man visited our hospital with a swollen lesion of the left upper eyelid which had appeared 2 months earlier. A biopsy of the upper eyelid revealed slight perivascular and periadnexal infiltration of mononuclear cells with dermal edema. Treatment with oral prednisolone at a dosage of 20 mg/day decreased the eyelid swelling...
2016: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
Sibylle Sabrautzki, Michael A Sandholzer, Bettina Lorenz-Depiereux, Robert Brommage, Gerhard Przemeck, Ingrid L Vargas Panesso, Alexandra Vernaleken, Lillian Garrett, Katharina Baron, Ali O Yildirim, Jan Rozman, Birgit Rathkolb, Christine Gau, Wolfgang Hans, Sabine M Hoelter, Susan Marschall, Claudia Stoeger, Lore Becker, Helmut Fuchs, Valerie Gailus-Durner, Martin Klingenspor, Thomas Klopstock, Christoph Lengger, Leuchtenberger Stefanie, Eckhard Wolf, Tim M Strom, Wolfgang Wurst, Martin Hrabě de Angelis
Animal models resembling human mutations are valuable tools to research the features of complex human craniofacial syndromes. This is the first report on a viable dominant mouse model carrying a non-synonymous sequence variation within the endothelin receptor type A gene (Ednra c.386A>T, p.Tyr129Phe) derived by an ENU mutagenesis program. The identical amino acid substitution was reported recently as disease causing in three individuals with the mandibulofacial dysostosis with alopecia (MFDA, OMIM 616367) syndrome...
September 26, 2016: Mammalian Genome: Official Journal of the International Mammalian Genome Society
Man Hei Cheng, Chung Nga Tam, Kwong Wai Choy, Wai Hung Tsang, Sze Lan Tsang, Chi Pui Pang, You Qiang Song, Mai Har Sham
Cataract is the most common cause of visual loss in humans. A spontaneously occurred, autosomal dominant mouse mutant Secc, which displayed combined features of small eye, cataract and closed eyelid was discovered in our laboratory. In this study, we identified the mutation and characterized the cataract phenotype of this novel Secc mutant. The Secc mutant mice have eyelids that remain half-closed throughout their life. The mutant lens has a significant reduction in size and with opaque spots clustered in the centre...
2016: PloS One
Yanchao Dong, Yanming Wang, Jiguang Yue, Zhencheng Hu
The paper proposes a robust framework for 3D facial movement tracking in real time using a monocular camera. It is designed to estimate the 3D face pose and local facial animation such as eyelid movement and mouth movement. The framework firstly utilizes the Discriminative Shape Regression method to locate the facial feature points on the 2D image and fuses the 2D data with a 3D face model using Extended Kalman Filter to yield 3D facial movement information. An alternating optimizing strategy is adopted to fit to different persons automatically...
2016: Sensors
Yi-Ju Ho, Chi-Hsiao Yeh, Chi-Chun Lai, Jerry Chien-Chieh Huang, Lan-Hsin Chuang
BACKGROUND: The aim of this study was to clarify the pathogenic mechanism and to evaluate an intervention for intractable secondary glaucoma in superior vena cava (SVC) syndrome. CASE PRESENTATION: A 66-year-old female with underlying hypertension, diabetes mellitus, ischaemic heart disease and end-stage renal disease complained of bilateral puffy eyelids for 3 months. Over three years, the patient experienced a progressive, marked face and neck swelling, which was accompanied by dyspnoea and nocturnal coughing...
2016: BMC Ophthalmology
Raman Malhotra, Kimia Ziahosseini, Cornelia Poitelea, Andre Litwin, Suresh Sagili
PURPOSE: To report outcomes of a randomized trial on the role of "active" Manuka honey on eyelid surgical wound healing. METHOD: Prospective, randomized, single-blinded study was performed for patients undergoing bilateral upper blepharoplasty. Vaseline was applied 4 times a day to both sides for 6 weeks and in addition, one eyelid was randomized to receive Manuka honey twice daily. Postoperative wounds were graded by a masked observer at 1 week, 1 month, and 4 months using Manchester scar scale and a modified eyelid scar grading scale...
July 13, 2016: Ophthalmic Plastic and Reconstructive Surgery
Xiaodan Jiang, Huibin Lv, Hang Song, Mingzhou Zhang, Yan Liu, Xiaodan Hu, Xuemin Li, Wei Wang
Purpose. This study aims to explore the safety and efficacy of a novel treatment-intense pulsed light (IPL) in MGD eyes. Methods. This study is a prospective and open label study. Forty eyes of 40 MGD patients were recruited in the study and received 4 consecutive IPL treatments on day 1, day 15, day 45, and day 75. Ten ocular surface symptoms were evaluated with a subjective face score at every visit. Best spectacle corrected visual acuity, intraocular pressure (IOP), conjunctival injection, upper and lower tear meniscus height (TMH), tear break-up time (TBUT), corneal staining, lid margin and meibomian gland assessments, and meibography were also recorded at every visit, as well as the adverse effects on the eye and ocular surface...
2016: Journal of Ophthalmology
Z Li, W Zhang, Y Chen, W Guo, J Zhang, H Tang, Z Xu, H Zhang, Y Tao, F Wang, Y Jiang, F L Sun, Z Mao
Failing to repair DNA double-strand breaks by either nonhomologous end joining (NHEJ) or homologous recombination (HR) poses a threat to genome integrity, and may have roles in the onset of aging and age-related diseases. Recent work indicates an age-related decrease of NHEJ efficiency in mouse models, but whether NHEJ and HR change with age in humans and the underlying mechanisms of such a change remain uncharacterized. Here, using 50 eyelid fibroblast cell lines isolated from healthy donors at the age of 16-75 years, we demonstrate that the efficiency and fidelity of NHEJ, and the efficiency of HR decline with age, leading to increased IR sensitivity in cells isolated from old donors...
July 8, 2016: Cell Death and Differentiation
Claudia Ammann, Javier Márquez-Ruiz, María Á Gómez-Climent, José M Delgado-García, Agnès Gruart
UNLABELLED: Classical blink conditioning is a well known model for studying neural generation of acquired motor responses. The acquisition of this type of associative learning has been related to many cortical, subcortical, and cerebellar structures. However, until now, no one has studied the motor cortex (MC) and its possible role in classical eyeblink conditioning. We recorded in rabbits the activity of MC neurons during blink conditioning using a delay paradigm. Neurons were identified by their antidromic activation from facial nucleus (FN) or red nucleus (RN)...
June 29, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Kyle A Burton, Kurt A Ashack, Amor Khachemoune
Non-melanoma skin cancer represents one-third of all malignancies and its incidence is expected to rise until the year 2040. Cutaneous squamous cell carcinoma (cSCC) represents 20 % of all non-melanoma skin cancer and is a deadly threat owing to its ability to metastasize to any organ in the body. Therefore, a better understanding of cSCC is essential to strengthen preventative measures and curable treatment options. Currently, research demonstrates that cSCC is diagnosed at a rate of 15-35 per 100,000 people and is expected to increase 2-4 % per year...
June 29, 2016: American Journal of Clinical Dermatology
Rodrigo Diego, Cécile Douet, Fabrice Reigner, Thierry Blard, Juliette Cognié, Stefan Deleuze, Ghylène Goudet
Transvaginal ultrasound-guided follicular punctures are widely used in the mare for diagnosis, research, and commercial applications. The objective of our study was to determine their influence on pain, stress, and well-being in the mare, by evaluating heart rate, breath rate, facial expression changes, and salivary cortisol before, during, and after puncture. For this experiment, 21 pony mares were used. Transvaginal ultrasound-guided aspirations were performed on 11 mares. After injections for sedation, analgesia, and antispasmodia, the follicles from both ovaries were aspirated with a needle introduced through the vagina wall into the ovary...
October 15, 2016: Theriogenology
Ali Riza Cenk Celebi, Hayyam Kiratli, Figen Soylemezoglu
The purpose of the present study was to assess the role of hedgehog signaling pathway in the carcinogenesis of eyelid skin and conjunctival epithelial malignant tumors. The study was conducted on specimens from 41 patients with cutaneous eyelid basal cell carcinoma, 22 with bulbar conjunctival squamous cell carcinoma, 12 with bulbar conjunctival intraepithelial neoplasia. Major molecules of Hedgehog signaling pathway (Sonic Hedgehog [Shh] and Patched-1 [Ptch-1] and Glioma-associated oncogene [Gli-1]) were evaluated in paraffin-embedded tissue specimens using immunohistochemical staining...
July 2016: Oncology Letters
Hideki Miyake, Tomoko Oda, Osamu Katsuta, Masaharu Seno, Masatsugu Nakamura
PURPOSE: A novel meibomian gland dysfunction (MGD) model was developed to facilitate understanding of the pathophysiology of MGD and to evaluate treatment with azithromycin ophthalmic solution (azithromycin). MGD was induced in HR-1 hairless mice by feeding them a special diet with limited lipid content (HR-AD). METHODS: Male HR-1 hairless mice were fed an HR-AD diet for 16 weeks. Development of MGD was assessed by histopathology at 4-week intervals. The lid margin was observed by slit-lamp examination...
June 1, 2016: Investigative Ophthalmology & Visual Science
Geraint J Parfitt, Donald J Brown, James V Jester
PURPOSE: Dry eye disease is a common condition associated with age-related meibomian gland dysfunction (ARMGD). We have previously shown that ARMGD occurs in old mice, similar to that observed in human patients with MGD. To begin to understand the mechanism underlying ARMGD, we generated transcriptome profiles of eyelids excised from young and old mice of both sexes. METHODS: Male and female C57BL/6 mice were euthanized at ages of 3 months or 2 years and their lower eyelids removed, the conjunctival epithelium scrapped off, and the tarsal plate, containing the meibomian glands, dissected from the overlying muscle and lid epidermis...
2016: Molecular Vision
Stephanie M Cox, David A Berntsen, Neil Chatterjee, Sheila B Hickson-Curran, Lyndon W Jones, Amir M Moezzi, Philip B Morgan, Jason J Nichols
PURPOSE: To describe the lid margin characteristics of contact lens wearers and relate them to comfort during lens wear. METHODS: Three study sites enrolled habitual contact lens wearers. Subjects completed the Comfort domain of the Contact Lens User Experience (CLUE) questionnaire, and each eye was graded for the presence of mucocutaneous junction (MCJ) displacement, lid margin irregularity, and lid margin vascularity. Examiners counted the number of meibomian gland (MG) orifices in the central centimeter of the lower eyelid and the number of those that showed pouting/plugging and vascular invasion...
August 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Yue Yin, Lan Gong
PURPOSE: To evaluate the meibomian gland function, morphology and the related medical history of patients with blepharokeratoconjunctivitis (BKC) in comparison with healthy population and meibomian gland dysfunction (MGD)-induced evaporative dry eye (EDE) patients. METHODS: Twenty-two eyes of 22 Asian adult patients with BKC were enrolled as the BKC group. Healthy volunteers and MGD-induced EDE patients were recruited in a 1:1 ratio and were matched in age, and the gender compositions of the three groups were also comparable...
June 8, 2016: Acta Ophthalmologica
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