4 results on '"Nicolás Alejandre"'
Search Results
2. Signs and Symptoms of Dry Eye in Keratoconus Patients Before and After Intrastromal Corneal Rings Surgery
- Author
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Ignacio Jimenez-Alfaro Morote, Nicolás Alejandre-Alba, Jesús Pintor, Alberto Recchioni, Alba Martin-Gil, Gonzalo Carracedo, and Laura Batres
- Subjects
Adult ,Male ,Keratoconus ,medicine.medical_specialty ,genetic structures ,Adolescent ,Corneal Stroma ,Dry Eye Syndromes ,Signs and symptoms ,Cell Count ,Ophthalmologic Surgical Procedures ,Prosthesis Implantation ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,Young Adult ,0302 clinical medicine ,Ophthalmology ,Medicine ,Humans ,Schirmer test ,Ocular Surface Disease Index ,Prospective Studies ,Prospective cohort study ,Microscopy, Confocal ,business.industry ,Intrastromal corneal rings ,Prostheses and Implants ,medicine.disease ,eye diseases ,Sensory Systems ,Surgery ,Tears ,030221 ophthalmology & optometry ,Female ,sense organs ,Goblet Cells ,business ,030217 neurology & neurosurgery ,Dinucleoside Phosphates - Abstract
Based on the relationship between keratoconus and dry eye, the aim of this study was to evaluate changes in signs and symptoms of dry eye in keratoconus patients before and after intrastromal corneal ring surgery.Fifteen keratoconus patients were enrolled in Fundación Jiménez-Díaz of Madrid and University Clinic of Optometry of the Universidad Complutense de Madrid (Madrid, Spain). Tear break up time (TBUT), Schirmer test without anesthesia, corneal staining, diadenosine tetraphosphate (ApWe found no statistical differences in time in Schirmer test, TBUT, and corneal staining. OSDI scores were 44.96 ± 8.65, 26.30 ± 6.79, and 19.31 ± 4.28 for (pre), (post), and (post6m) surgery, respectively (p0.001). Impression cytology showed a decrease in cell density at (post6m) compared with presurgery (47.36 ± 35.15 cells/mmIntrastromal corneal ring surgery induces changes improving dry eye symptoms but no changes were found in signs of dry eye after surgery in keratoconus patients except for the MCH that increases drastically. More studies are needed to clarify the reason of its improvement.
- Published
- 2016
3. Signs and Symptoms of Dry Eye in Keratoconus Patients: A Pilot Study
- Author
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Ignacio Jimenez-Alfaro Morote, Almudena Crooke, Nicolás Alejandre-Alba, Alberto Recchioni, Gonzalo Carracedo, Jesús Pintor, and Alba Martin-Gil
- Subjects
Adult ,Male ,Keratoconus ,medicine.medical_specialty ,Corneal staining ,Adolescent ,Signs and symptoms ,Cell Count ,Pilot Projects ,Cellular and Molecular Neuroscience ,Young Adult ,Statistical significance ,Ophthalmology ,Surveys and Questionnaires ,medicine ,Humans ,Ocular Surface Disease Index ,Eye Proteins ,Goblet cell ,Microscopy, Confocal ,business.industry ,Healthy subjects ,Mucins ,Impression cytology ,medicine.disease ,eye diseases ,Sensory Systems ,Healthy Volunteers ,Surgery ,medicine.anatomical_structure ,Tears ,Dry Eye Syndromes ,Female ,sense organs ,Goblet Cells ,business ,Biomarkers ,Dinucleoside Phosphates - Abstract
To compare signs and symptoms of dry eye in keratoconus (KC) patients versus healthy subjects.A total of 15 KC patients (KC group, n = 15 eyes) and 16 healthy subjects (control group, 16 eyes) were enrolled in this study. The Schirmer I test with no anesthetic, tear break-up time (TBUT), corneal staining characteristics, and ocular surface disease index (OSDI) scores were evaluated for both groups. Impression cytology, combined with/scanning laser confocal microscopy (LCM), was performed to evaluate goblet cell density, mucin cloud height (MCH), and goblet cell layer thickness (CLT). Finally, tear concentrations of di-adenosine tetraphosphate (Ap4A) were assessed. Results were statistically analyzed using Shapiro-Wilk and non-parametric Wilcoxon rank sum tests. Statistical significance was set at p 0.05.KC patients had lower tear volumes and greater corneal staining than did healthy subjects (p 0.05). OSDI scores were 44.96 ± 8.65 and 17.78 ± 6.50 for the KC and control groups, respectively (p 0.05). We found no statistically significant differences in TBUT between groups. Impression cytology revealed lower goblet cell densities in KC group patients versus control group subjects (84.88 ± 32.98 and 128.88 ± 50.60 cells/mm,(2) respectively, p 0.05). There was a statistically significant reduction in MCH and CLT in KC group patients compared with control group subjects. Ap4A tear concentrations were higher in KC group patients than in control group subjects (2.56 ± 1.10 and 0.15 ± 0.12 µM, respectively, p 0.05).The parameters evaluated in this study indicate that KC patients suffer greater symptoms of dry eye and greater tear instability, primarily due to the decreased mucin production in their tears, than do healthy patients with no KC.
- Published
- 2014
4. Description of a new family with cryopyrin-associated periodic syndrome: risk of visual loss in patients bearing the R260W mutation
- Author
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Ignacio Jiménez-Alfaro, Guillermo Fernandez-Sanz, Sandra Bermúdez, Ana Ruiz-Palacios, Fredeswinda I Romero, Gabriel Herrero-Beaumont, Juan I Aróstegui, Carmen Ayuso, Olga Sánchez-Pernaute, Nicolás Alejandre, Fiona Blanco-Kelly, and Ángel García-Aparicio
- Subjects
Proband ,medicine.medical_specialty ,Pathology ,genetic structures ,Interstitial keratitis ,Hearing loss ,Mutation, Missense ,Vision Disorders ,Physical examination ,Young Adult ,Rheumatology ,NLR Family, Pyrin Domain-Containing 3 Protein ,medicine ,Humans ,Pharmacology (medical) ,Keratitis ,integumentary system ,medicine.diagnostic_test ,business.industry ,Cryopyrin-associated periodic syndrome ,Middle Aged ,medicine.disease ,Rash ,Dermatology ,Uveitis, Anterior ,Cryopyrin-Associated Periodic Syndromes ,Pedigree ,Interleukin 1 Receptor Antagonist Protein ,Treatment Outcome ,Antirheumatic Agents ,Female ,medicine.symptom ,Red eye ,business ,Carrier Proteins ,Uveitis - Abstract
Objective The aim of this study was to describe a family with cryopyrin-associated periodic syndrome (CAPS) in which the disease was unveiled after the ophthalmologic evaluation. Methods Family and personal histories from each of the patients were recorded. Each underwent a full ophthalmological examination along with the physical examination. The mutational analysis of the NLRP3 gene was performed by means of direct sequencing. Results The proband was admitted during an episode of unilateral anterior uveitis. She had a history of recurrent red eye and had been suffering episodes of skin rash and arthralgia induced by cold since childhood. At examination, she showed a reticulated corneal mid-stroma. Her mother and her younger sister also suffered from relapsing episodes of skin rash and fever triggered by cold as well as flares of red eye. They had developed premature hearing loss. In both cases, opacities in the corneal mid-stroma were evidenced with a slit lamp. The genetic analysis detected the heterozygous germline p.R260W mutation in the NLRP3 gene in the three women, confirming the diagnosis of CAPS. Treatment with anakinra resulted in complete remission of flares. Conclusion In this family, a structural NLRP3 mutation was associated with classic MuckleWells features of different degrees of severity. Interstitial keratitis with corneal opacification, usually ascribed to neonatal-onset multisystem inflammatory disease, was found. We underscore that ocular involvement in MuckleWells syndrome should be carefully assessed, since it can lead to visual impairment.
- Published
- 2014
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