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2.
Ocul Immunol Inflamm ; 32(1): 62-70, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36637982

RESUMO

PURPOSE: To evaluate ocular surface involvement, tear cytokine levels, and histopathological changes in pemphigus and pemphigoid patients. METHODS: A total of 22 patients (15 pemphigus and 7 pemphigoids) and 21 non-diseased controls were enrolled in our study. All participants underwent ocular surface evaluation, which included ocular surface disease index test, slit lamp observation, dry eye-related examination, tear multicytokine analysis, and conjunctival impression cytology. RESULTS: Pemphigus and pemphigoid patients presented much more severe conjunctivochalasis, corneal epithelial defects, corneal opacity, symblepharon   and dry eye. Severe ocular surface squamous metaplasia and a significant increase of tear macrophage inflammatory protein-1beta, tumor necrosis factor-alpha, interleukin (IL)-1ß, IL -6, and IL-8 occurred in pemphigus and pemphigoid patients. CONCLUSIONS: Our results revealed that ocular surface inflammation and dry eye persist in most pemphigus and pemphigoid patients, and do not occur in parallel with the systemic course. Regular ophthalmological examinations and local anti-inflammatory should be provided for pemphigus and pemphigoid patients.


Assuntos
Doenças da Túnica Conjuntiva , Síndromes do Olho Seco , Penfigoide Bolhoso , Pênfigo , Humanos , Penfigoide Bolhoso/complicações , Penfigoide Bolhoso/diagnóstico , Pênfigo/complicações , Pênfigo/diagnóstico , Síndromes do Olho Seco/diagnóstico , Síndromes do Olho Seco/etiologia , Síndromes do Olho Seco/patologia , Doenças da Túnica Conjuntiva/diagnóstico , Doenças da Túnica Conjuntiva/etiologia , Túnica Conjuntiva/patologia , Lágrimas , Interleucina-1beta , Inflamação/diagnóstico , Inflamação/patologia
3.
Cornea ; 43(2): 245-248, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37098106

RESUMO

PURPOSE: The purpose of this study was to report conjunctival granular formation as one of the causative factors of a traumatic corneal conjunctival epithelial disorder after plastic suture blepharoplasty. METHODS: Clinical charts of 7 patients who had visited Ohshima Eye Hospital with a symptomatic corneal epithelial disorder and history of suture blepharoplasty were reviewed. Clinical evidence of conjunctival granular formations was observed in all patients at the tarsal conjunctiva facing to corneal conjunctival traumatic epithelial disorders. The desired outcome was to alleviate the disorder. The assessment included tabulating results after the placement of a soft contact lens bandage and subsequent partial tarsal plate resection of the granular formation. RESULT: Seven women (mean age 45.0 ± 10.9 years) enrolled in this study had previously undergone suture blepharoplasty (mean 18.3 ± 6.9 years before). Soft contact lens bandages relieved all of the patients' complaints immediately. After resecting the granular formation, the traumatic corneal conjunctival epithelial disorder disappeared, and no recurrence was observed after surgery. CONCLUSIONS: The conjunctival granular formation within the tarsal conjunctiva after suture blepharoplasty caused the late-onset traumatic corneal conjunctival epithelial disorder. A complete cure was obtained after resection of the granular formation at the tarsal conjunctiva. To the best of our knowledge, this is the first report to identify the removal of granular formations in 7 patients with late-onset traumatic corneal conjunctival disorders many years after blepharoplasty. The resection of these lesions is a promising procedure to treat late-onset ocular epithelial disorder after suture blepharoplasty.


Assuntos
Blefaroplastia , Doenças da Túnica Conjuntiva , Doenças da Córnea , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Blefaroplastia/efeitos adversos , Blefaroplastia/métodos , Pálpebras/cirurgia , Túnica Conjuntiva/cirurgia , Córnea/cirurgia , Doenças da Córnea/etiologia , Doenças da Córnea/cirurgia , Doenças da Túnica Conjuntiva/etiologia , Doenças da Túnica Conjuntiva/cirurgia , Suturas
5.
Eye Contact Lens ; 49(5): 199-203, 2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-36943174

RESUMO

PURPOSE: Evaluation of the results of sutureless amniotic membrane transplantation (AMT) using a pediatric nasogastric tube (NGT) for patients with acute Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN) was aimed. METHODS: Twenty-six eyes of 13 patients with SJS/TEN with ocular involvement at a single tertiary care hospital between May 2020 and January 2022 were included in the study. An amniotic membrane was implanted to the ocular surface and conjunctival fornix using a modified symblepharon ring (MR) created by inserting NGT end-to-end. Patients were followed for at least 6 months. The mean duration of the surgery was recorded. The presence of corneal epithelial defect and vascularization, meibomian gland dysfunction (MGD) grade, conjunctival scarring, eyelid margin keratinization, symblepharon, and trichiasis were recorded. RESULTS: The mean age of the patients was 38.4±17.6 years. Amniotic membrane transplantation was performed only once for eight patients and twice for five patients. The mean duration of the surgery was 3.2±0.4 min. The modified symblepharon ring was removed 28 days after its application. At the first examination, 20 eyes (76.9%) had a corneal epithelial defect and 6 (23.1%) had early symblepharon. At the postoperative 6 months, although seven eyes (26.9%) had conjunctival scarring and 5 (19.2%) had eyelid margin keratinization, all patients were without any corneal defect, corneal vascularization, or symblepharon. Only 11 eyes (42.3%) showed MGD, and 1 eye (3.8%) showed trichiasis. CONCLUSIONS: This study showed that sutureless AMT using pediatric NGT could be a potentially fast and inexpensive treatment option for the treatment of SJS/TEN with ocular involvement at the bedside without the need for general anesthesia.


Assuntos
Doenças da Túnica Conjuntiva , Doenças da Córnea , Doenças Palpebrais , Disfunção da Glândula Tarsal , Síndrome de Stevens-Johnson , Triquíase , Humanos , Criança , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Doenças da Córnea/cirurgia , Síndrome de Stevens-Johnson/complicações , Síndrome de Stevens-Johnson/cirurgia , Cicatriz , Âmnio/transplante , Doenças da Túnica Conjuntiva/etiologia , Doenças da Túnica Conjuntiva/cirurgia , Doenças da Túnica Conjuntiva/diagnóstico , Doenças Palpebrais/etiologia , Doenças Palpebrais/cirurgia , Transtornos da Visão
7.
J Fr Ophtalmol ; 46(3): 231-234, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36725373

RESUMO

An 18-year-old female patient was referred with complaints of tearing and redness in the left eye for 3 months after a mild ocular trauma with a turkey feather. She was treated with topical antibiotics and corticosteroids with no improvement. Slit-lamp examination of the left eye showed a vascularized lesion with a polypoidal appearance due to multiple contiguous micronodules on the temporal and inferior bulbar conjunctiva. Results of the anterior and posterior segment examination were unremarkable in both eyes. A biopsy specimen of the conjunctival mass showed multiple tuberculoid granulomas composed of epithelioid histiocytes with associated Langhan's type multinucleate giant cells and a necrotic nodule surrounded by histiocytes and giant cells. The Mantoux test was positive with induration of 15mm. The patient was prescribed antituberculosis therapy. Three months after treatment initiation, the conjunctival lesions had resolved. Mycobacterium tuberculosis should be considered in cases of unilateral chronic recalcitrant conjunctivitis. Biopsy of a conjunctival mass is of utmost importance to establish a definite diagnosis.


Assuntos
Doenças da Túnica Conjuntiva , Conjuntivite , Tuberculose Ocular , Feminino , Humanos , Adolescente , Tuberculose Ocular/complicações , Tuberculose Ocular/diagnóstico , Tuberculose Ocular/tratamento farmacológico , Conjuntivite/patologia , Granuloma/complicações , Granuloma/diagnóstico , Granuloma/patologia , Túnica Conjuntiva/patologia , Doenças da Túnica Conjuntiva/diagnóstico , Doenças da Túnica Conjuntiva/etiologia , Doenças da Túnica Conjuntiva/patologia
8.
Natl Med J India ; 36(4): 231-232, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38692639

RESUMO

A conjunctival foreign-body (FB) granuloma may result following trauma with synthetic and non-synthetic materials including organic and non-organic objects. Children usually manifest with FB granulomas that develop due to inoculation of FBs from soft toys, blankets or woollen clothes. Encapsu- lation of these FBs following a granulomatous inflammatory response results in a nodular swelling in the conjunctiva. Reports of a wooden FB granuloma in the conjunctiva in children are anecdotal. A 5-year-old boy suffered an un- witnessed direct ocular trauma to his left eye (OS) with a wooden arrow while playing. He developed redness and nodular swelling at the inferotemporal aspect of the OS without any visual complaints. The diagnosis of a wooden FB granuloma is a challenge to ophthalmologists and may go undetected in children who neglect their symptoms. It characteristically presents as a unilateral conjunctival nodule. Surgical excision is the definitive management. However, spontaneous extrusion of the FB might be observed due to protective blinking and tearing mechanisms in the eye.


Assuntos
Corpos Estranhos no Olho , Granuloma de Corpo Estranho , Humanos , Masculino , Pré-Escolar , Granuloma de Corpo Estranho/diagnóstico , Granuloma de Corpo Estranho/etiologia , Granuloma de Corpo Estranho/cirurgia , Corpos Estranhos no Olho/cirurgia , Corpos Estranhos no Olho/diagnóstico , Corpos Estranhos no Olho/complicações , Doenças da Túnica Conjuntiva/etiologia , Doenças da Túnica Conjuntiva/cirurgia , Doenças da Túnica Conjuntiva/diagnóstico , Túnica Conjuntiva/patologia , Túnica Conjuntiva/cirurgia , Madeira , Remissão Espontânea
9.
Sci Rep ; 12(1): 12985, 2022 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-35906359

RESUMO

We investigate long-term clinical outcomes and predictive factors associated with poor vision outcomes in patients with ocular graft-versus-host disease (oGVHD). This retrospective cohort study involved 94 patients with chronic oGVHD, classified into severe (n = 25) and non-severe (n = 69) groups. Factors associated with oGVHD severity and poor vision outcomes were examined using multivariate logistic regression. In the severe oGVHD group, the disease activity pattern tended to be persistent, whereas flare-up episodes were more frequent and occurred over shorter intervals in this group. Myelodysplastic syndrome (MDS) and lung GVHD were more common and systemic calcineurin inhibitors were used more frequently in the severe group than in the non-severe group. Finally, 5-year survival rates were poorer in the severe group. Multivariate analysis revealed that MDS, lung GVHD involvement, and no history of systemic calcineurin inhibitor use were risk factors for severe oGVHD. Risk factors for poor vision outcomes were conjunctival scarring and persistent epithelial defects. In conclusion, MDS, lung GVHD, and no history of systemic calcineurin inhibitors are associated with severe oGVHD. Conjunctival scarring and persistent epithelial defects are risk factors for poor vision outcomes.


Assuntos
Doenças da Túnica Conjuntiva , Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Síndromes Mielodisplásicas , Inibidores de Calcineurina/uso terapêutico , Doença Crônica , Cicatriz/complicações , Doenças da Túnica Conjuntiva/etiologia , Doença Enxerto-Hospedeiro/etiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Síndromes Mielodisplásicas/etiologia , Estudos Retrospectivos
10.
Pediatr Emerg Care ; 38(8): e1428-e1432, 2022 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-35696303

RESUMO

OBJECTIVE: Subconjunctival hemorrhage (SCH) is a reported sign of occult abusive injury, but there are limited published data about SCH during childhood. We sought to determine the prevalence and causes of SCH in children. METHODS: This is a retrospective cross-sectional study of children seen by pediatric ophthalmologists in an outpatient setting over 4 years. Primary outcomes were prevalence and causes of SCH, based on history, physical ocular and nonocular findings, and laboratory and imaging studies. Subconjunctival hemorrhage prevalence was determined including and excluding eye surgery to reduce bias in the prevalence estimate. RESULTS: We studied 33,990 children, who underwent 86,277 examinations (median age, 5 years; range, 2 days to 18 years; 9282 younger than 2 years, 13,447 age 2-7 years, 11,261 age 8-18 years). There were 949 cases of SCH (1.1%; 95% confidence interval, 1.0-1.2). When surgery was excluded, there were 313 cases (prevalence, 0.4%; 95% confidence interval, 0.3-0.4), of which 261 (83%) were due to trauma; 40 (13%) ocular surface inflammation, including infectious conjunctivitis; 7 (2%) orbital or conjunctival lesion; 3 (1%) vessel rupture from choking or cough; and 2 (1%) coagulopathy related. Across all ages, including less than 2 years, trauma and inflammation together accounted for 94% to 97% of all cases of SCH. CONCLUSIONS: Subconjunctival hemorrhage is uncommon in children. The great majority of cases are due to trauma. All children with SCH, including infants and young children, should be closely examined to identify other ocular or nonocular signs of trauma.


Assuntos
Doenças da Túnica Conjuntiva , Hemorragia Ocular , Adolescente , Criança , Pré-Escolar , Doenças da Túnica Conjuntiva/complicações , Doenças da Túnica Conjuntiva/etiologia , Estudos Transversais , Hemorragia Ocular/diagnóstico , Hemorragia Ocular/epidemiologia , Hemorragia Ocular/etiologia , Humanos , Lactente , Inflamação/complicações , Prevalência , Estudos Retrospectivos
11.
Eur J Ophthalmol ; 32(6): 3674-3678, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35230194

RESUMO

PURPOSE: To describe the clinical features, histopathological findings, and prognosis of conjunctival Teddy bear granuloma (TBG) diagnosed in a Mexican ophthalmologic referral center in a period of 64 years. METHODS: We reviewed clinical and histopathological material from all patients with documented conjunctival TBG. Patient's age, gender, location, clinical signs and symptoms, duration, treatment and, specimen size, were evaluated. Formalin-fixed paraffin embedded 5 microns hematoxylin-eosin stained slides and periodic acid-Schiff special stain as well as examination under polarized light microscopy were performed in all cases. RESULTS: A total of 5 conjunctival TBG were collected. The ages of the patients ranged between 2 and 11 with a mean of 6 years. Female to male ratio was 4:1. The right inferior fornix was involved in 4 cases (80%) with clinical diagnosis of conjunctival mass of unknown etiology. Treatment consisted of surgical removal by slit-lamp biomicroscopy (3 cases) and in the operating room (2 cases). No complications were informed in a short follow-up period. Histopathologically, numerous cross-sections of synthetic and non-synthetic fibers surrounded by multinucleated foreign body giant cells, epithelioid histiocytes, lymphocytes, plasma cells and sparse neutrophils were seen. Polarization light microscopy demonstrated numerous birefringent colorful foreign fibers. The follow-up period of the patients ranged between 1 and 32 weeks with a mean of 10 weeks. CONCLUSIONS: Most patients with TBG are children with vague, non-specific symptoms troubling precise clinical diagnosis. Treatment of choice involves surgical excision of the foreign body granuloma followed by topical corticosteroids. All surgical specimens obtained must be sent for histopathological examination. Special awareness is recommended during COVID-19 pandemic lockdown to prevent potential exposure to fibers that may cause conjunctival TBG.


Assuntos
COVID-19 , Doenças da Túnica Conjuntiva , Conjuntivite , Granuloma de Corpo Estranho , Corticosteroides , Criança , Pré-Escolar , Cicatriz/complicações , Controle de Doenças Transmissíveis , Doenças da Túnica Conjuntiva/diagnóstico , Doenças da Túnica Conjuntiva/etiologia , Doenças da Túnica Conjuntiva/cirurgia , Amarelo de Eosina-(YS) , Feminino , Formaldeído , Granuloma de Corpo Estranho/diagnóstico , Granuloma de Corpo Estranho/etiologia , Granuloma de Corpo Estranho/cirurgia , Hematoxilina , Humanos , Masculino , Pandemias , Ácido Periódico
14.
Eur J Ophthalmol ; 32(6): 3476-3481, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35164600

RESUMO

PURPOSE: To evaluate the efficacy of preoperative topical brimonidine use to maintain visibility during trabeculectomy and control intraoperative bleeding and postoperative subconjunctival hemorrhage. METHODS: The first group comprised 35 eyes of 34 patients administered brimonidine tartrate 0.15% (Brimogut, Bilim Ilac, Turkey) eye drops 6 and 3 min before surgery, and 33 eyes of 31 patients who received no medication for vasoconstriction formed the second group. Preoperative and postoperative photographs and operation video images were taken and vision analysis software used. Black-and-white images were obtained to identify the blood vessel and surface hemorrhage areas. The surface area of the hemorrhage was calculated by counting the black pixels with Image J software. RESULTS: There was no significant difference between two groups in terms of baseline (preoperative) eye redness (p > 0.05). In the first group, the eye redness values were 344.7 ± 19.5 pixels preoperatively and 244.1 ± 23.3 pixels at the beginning of the surgery, respectively (p < 0.001). However, no significant change was observed in the second group in eye redness (348.2 ± 17.5 pixels preoperatively and 360.7 ± 26.8 pixels at the beginning of the surgery, p > 0.05). Cautery was used for an average of 11.91 ± 1.96 s in the first group and 25.57 ± 4.66 s in the second to control intraoperative bleeding (P < 0.001). CONCLUSION: Preoperative topical brimonidine use in trabeculectomy surgery significantly decreased intraoperative bleeding and postoperative subconjunctival hemorrhage and facilitated bleeding control.


Assuntos
Doenças da Túnica Conjuntiva , Hemorragia Ocular , Trabeculectomia , Tartarato de Brimonidina , Doenças da Túnica Conjuntiva/tratamento farmacológico , Doenças da Túnica Conjuntiva/etiologia , Doenças da Túnica Conjuntiva/prevenção & controle , Hemorragia Ocular/tratamento farmacológico , Hemorragia Ocular/etiologia , Hemorragia Ocular/prevenção & controle , Humanos , Pressão Intraocular , Soluções Oftálmicas , Quinoxalinas/uso terapêutico
15.
Can J Ophthalmol ; 57(6): 388-393, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-34324876

RESUMO

OBJECTIVE: The study aims to describe the clinical and histopathologic features of different types of dacryops and their clinical diagnostic challenges. METHODS: This is a retrospective cohort study of all surgically excised cases of dacryops in 2 tertiary eye hospitals in Riyadh, Saudi Arabia. RESULTS: The study included 58 dacryops specimens from 55 patients with an average age of 41.2 years (range, 4-78 years). The most common location was the upper lid (60.3%), whereas the least expected location was the caruncle (6.9%). The most common site of dacryops occurrence was in the accessory lacrimal gland (55.2%), the main lacrimal gland (32.8%), and then ectopic dacryops (12%). All patients presented with lid swelling alone except for 3 patients who experienced secondary mechanical ptosis. On physical examination, conjunctival scarring existed in 4 patients (6.9%). Preoperative diagnosis of dacryops was accurate in 44.8% of the cases. Dacryops of the main lacrimal gland was accurately diagnosed clinically in all cases compared with other locations, which was statistically significant (p < 0.001). The causes of inaccurate clinical diagnoses were hidrocystoma (26.9%), inclusion cyst (11.5%), and dermoid cyst (7.7%), whereas the remaining cases were diagnosed as cysts without a specific subtype (53.9%). Recurrence of the lesion was observed in 2 cases (3.5%). No clinical or histopathologic factors were associated with a risk of recurrence. CONCLUSION: Dacryops can represent a diagnostic challenge to ophthalmologists. Familiarity with clinical presentations and findings is required to diagnose dacryops outside the main lacrimal gland.


Assuntos
Doenças do Aparelho Lacrimal , Aparelho Lacrimal , Adulto , Humanos , Doenças da Túnica Conjuntiva/etiologia , Cistos/diagnóstico , Cistos/etiologia , Cistos/cirurgia , Aparelho Lacrimal/cirurgia , Aparelho Lacrimal/patologia , Doenças do Aparelho Lacrimal/diagnóstico , Doenças do Aparelho Lacrimal/cirurgia , Doenças do Aparelho Lacrimal/patologia , Estudos Retrospectivos , Pré-Escolar , Criança , Adolescente , Adulto Jovem , Pessoa de Meia-Idade , Idoso , Cicatriz/etiologia
16.
Rev. bras. oftalmol ; 81: e0005, 2022. graf
Artigo em Inglês | LILACS | ID: biblio-1360915

RESUMO

ABSTRACT Objective: To describe the upper and lower blepharoplasty technique associated with canthopexy with double pre septal orbicularis muscle elevation with a single suture in order to evaluate the efficacy of the technique. Methods: This is a retrospective study in which the medical records of 5,882 patients who underwent this technique between January 1999 and July 2015 were evaluated. The frequency and main causes of clinical complications and surgical reoperation were analyzed. Results: The incidence of complications found was 12.7% (n=750), being 0.8% (n=47) due to persistent chemosis, 3% (n=176) due to poor lower eyelid positioning, 4.17% (n=245) due to mild eyelid retraction and 4.8% (n=282) because of mild to moderate chemosis. Conclusion: The technique appears to be effective as it is simple and practical, and capable of resulting in positive functional and aesthetic outcomes with low rates of complications.


RESUMO Objetivo: Descrever a técnica de blefaroplastia superior e inferior associada à cantopexia associada à dupla elevação do músculo orbicular pré-septal em uma única sutura e avaliar sua eficácia. Métodos: Trata-se de estudo retrospectivo, no qual foram avaliados 5.882 prontuários de pacientes submetidos à blefaroplastia superior e inferior com a utilização da cantopexia, entre janeiro de 1999 e julho de 2015. Taxas e principais causas de complicações clínicas e reintervenção cirúrgica foram analisadas. Resultados: A incidência de complicações encontradas foi de 12,7% (n=750), sendo 0,8% (n=47) de caso de quemose persistente, 3% (n=176) de mau posicionamento palpebral inferior (ectrópio), 4,17% (n=245) de leve retração pálpebra e 4,8% (n=282) de quemose leve a moderada. Conclusão: A técnica mostra-se eficaz por ser simples e prática, podendo ter resultados funcionais e estéticos positivos e com baixo índice de complicações.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Blefaroptose/cirurgia , Técnicas de Sutura , Blefaroplastia/efeitos adversos , Blefaroplastia/métodos , Doenças Palpebrais/cirurgia , Complicações Pós-Operatórias/etiologia , Envelhecimento da Pele , Prontuários Médicos , Estudos Retrospectivos , Doenças da Túnica Conjuntiva/etiologia , Edema/etiologia , Pálpebras/cirurgia , Músculos Faciais/cirurgia
17.
Invest Ophthalmol Vis Sci ; 62(13): 10, 2021 10 04.
Artigo em Inglês | MEDLINE | ID: mdl-34643664

RESUMO

Purpose: The present study was designed to investigate the role of myofibroblast transdifferentiation and the conjunctival renin-angiotensin system (RAS) in the pathogenesis of graft-versus-host disease (GVHD)-associated conjunctival fibrosis. Methods: A mouse model of major histocompatibility-matched allogeneic transplantation was used to induce GVHD, with male B10.D2 mice as donors and female BALB/c mice as recipients. Male BALB/c to female BALB/c syngeneic transplantation was used as control. Y chromosome staining in the spleen cells obtained from female recipient mice was used to confirm engraftment. The phenol red thread test and fluorescein staining were used to quantify tears and corneal keratopathy. Eyes were harvested at 4 and 8 weeks after the transplant for alpha-smooth muscle actin (α-SMA), angiotensinogen, and angiotensin-converting enzyme (ACE) immunostaining. Conjunctiva was harvested for gene expression quantification of α-SMA, angiotensinogen, and ACE. Results: More than 80% of the spleen cells in the recipient mice were chromosome Y positive, thus conforming successful engraftment. A significant decrease in tear secretion and a marked increase in corneal keratopathy score after allogeneic transplantation indicated the onset of ocular GVHD in these mice. A significant increase in α-SMA gene expression and the presence of a large number of α-SMA-positive cells was noted in the bulbar orbital conjunctiva of mice after allogeneic transplantation. Allogenic transplantation also caused a significant increase in the gene expression and protein expression of angiotensinogen and ACE in the subconjunctival eyelid area. Conclusions: Results of the present study demonstrate that GVHD-associated conjunctival fibrosis is accompanied by myofibroblast formation and activation of the local conjunctival RAS.


Assuntos
Transplante de Medula Óssea/efeitos adversos , Túnica Conjuntiva/patologia , Doenças da Túnica Conjuntiva/etiologia , Doença Enxerto-Hospedeiro/complicações , Miofibroblastos/patologia , Animais , Túnica Conjuntiva/metabolismo , Doenças da Túnica Conjuntiva/metabolismo , Doenças da Túnica Conjuntiva/patologia , Modelos Animais de Doenças , Feminino , Fibrose , Doença Enxerto-Hospedeiro/diagnóstico , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Miofibroblastos/metabolismo
18.
J AAPOS ; 25(5): 307-309, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34425234

RESUMO

Conjunctival lymphangiectasia, a rare condition characterized by dilated lymphatic channels in the bulbar conjunctiva, generally develops as a consequence of a local lymphatic scarring or distal mechanical outflow obstruction following surgery, radiotherapy, neoplastic disease, or other disease processes. The actual cause often remains unknown. We report a case of a unilateral conjunctival lymphangiectasia in a 7-year-old girl with neurofibromatosis type 1 (NF-1) and discuss a possible association between the two entities.


Assuntos
Doenças da Túnica Conjuntiva , Linfangiectasia , Neurofibromatose 1 , Criança , Túnica Conjuntiva , Doenças da Túnica Conjuntiva/diagnóstico , Doenças da Túnica Conjuntiva/etiologia , Feminino , Humanos , Linfangiectasia/diagnóstico , Linfangiectasia/etiologia , Neurofibromatose 1/complicações , Neurofibromatose 1/diagnóstico
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