Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 14 de 14
Filter
1.
Arq. bras. oftalmol ; 79(2): 105-110, Mar.-Apr. 2016. tab, graf
Article in English | LILACS | ID: lil-782803

ABSTRACT

ABSTRACT Purpose: The goal of the present study was to establish a protocol for primary culture of lacrimal gland acinar cells (LGACs) and to assess the effect of adding insulin to the culture media. Methods: LGACs were isolated and cultured from lacrimal glands of Wistar male rats. The study outcomes included cell number, viability, and peroxidase release over time and in response to three concentrations of insulin (0.5, 5.0, and 50.0 μg/mL). Results: In LGAC primary culture, cells started to form clusters by day 3. There was a time-response pattern of peroxidase release, which rose by day 6, in response to carbachol. Culture viability lasted for 12 days. An insulin concentration of 5.0 μg/mL in the culture medium resulted in higher viability and secretory capacity. Conclusions: The present method simplifies the isolation and culture of LGACs. The data confirmed the relevance of adding insulin to maintain LGACs in culture.


RESUMO Objetivo: O objetivo do estudo foi estabelecer um protocolo de cultura primária para o isolamento de células acinares da glândula lacrimal (CAGL) e avaliar a relevância de insulina no meio de cultura. Métodos: CAGL foram isoladas e cultivadas a partir das glândulas lacrimais de ratos Wistar machos. Os parâmetros analisados foram: o número de células, viabilidade e secreção da peroxidase ao longo do tempo e em resposta a três concentrações de insulina (0,5; 5,0 e 50,0 μg/ml). Resultados: Na cultura primária de CAGL as células passaram a se agrupar por volta do dia 3. A secreção de peroxidase em resposta ao carbacol aumentou no dia 6. O período de cultura viável foi limitado à 12 dias. Insulina à 5,0 μg/ml no meio de cultura resultou em viabilidade e capacidade secretora maior. Conclusão: o estudo descreveu um método para simplificar o isolamento e cultivo de CAGL. Os dados apresentados confirmam a importância da insulina na manutenção da cultura de CAGL.


Subject(s)
Animals , Male , Acinar Cells/cytology , Primary Cell Culture/standards , Insulin/pharmacology , Lacrimal Apparatus/cytology , Carbachol/metabolism , Cell Count/methods , Cell Separation/methods , Rats, Wistar , Peroxidase/metabolism , Acinar Cells/drug effects , Acinar Cells/metabolism , Insulin/metabolism , Lacrimal Apparatus/metabolism
2.
Yonsei Medical Journal ; : 482-489, 2016.
Article in English | WPRIM | ID: wpr-21005

ABSTRACT

PURPOSE: To investigate the difference of expression of autophagy and reactive oxygen species (ROS) related proteins in adenoid cystic carcinoma (ACC) of lacrimal gland in comparison with ACC of salivary gland. MATERIALS AND METHODS: Formalin-fixed, paraffin-embedded tissue samples from patients pathologically diagnosed as lacrimal gland ACC (n=11) and salivary gland ACC (n=64) were used. Immunochemistry was used to measure expression of autophagy related proteins [beclin-1, light chain (LC) 3A, LC3B, p62, and BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 (BNIP3)] and ROS related proteins [catalase, thioredoxinreductase, glutathione S-transferasepi (GSTpi), thioredoxin interacting protein, and manganese superoxide dismutase (MnSOD)]. The prognostic factors related to disease-free and overall survival (OS) in lacrimal gland ACC by log-rank tests, were determined. RESULTS: GSTpi in stromal cells was more highly expressed in lacrimal gland ACC (p=0.006), however, MnSOD in epithelial cells was expressed more in salivary gland ACC (p=0.046). LC3B positivity and BNIP3 positivity in epithelial component were associated with shorter disease-free survival (both p=0.002), and LC3A positivity in stromal component was the factor related to shorter OS (p=0.005). CONCLUSION: This is the first study to demonstrate the expression of autophagy and ROS related proteins in lacrimal gland ACC in comparison with the salivary gland ACC, which would provide a basis for further study of autophagy and ROS mechanism as novel therapeutic targets in lacrimal gland ACC.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Autophagy , Beclin-1 , Biomarkers, Tumor/metabolism , Carcinoma, Adenoid Cystic/metabolism , Carrier Proteins , Disease-Free Survival , Gene Expression Regulation, Neoplastic , Lacrimal Apparatus/metabolism , Lacrimal Apparatus Diseases/metabolism , Membrane Proteins , Proto-Oncogene Proteins , Reactive Oxygen Species/metabolism , Salivary Gland Neoplasms/metabolism , Salivary Glands/pathology
4.
Rev. bras. oftalmol ; 73(5): 273-278, Sep-Oct/2014. tab, graf
Article in Portuguese | LILACS | ID: lil-741903

ABSTRACT

Objetivo: Analisar a secreção lacrimal, coloração da superfície ocular e estabilidade do filme lacrimal em indivíduos submetidos à cirurgia de PRK e LASIK com laser de femtossegundo (femto LASIK). Métodos: Vinte olhos de 10 pacientes submetidos à técnica de Femto LASIK e 11 olhos de 6 pacientes submetidos à técnica de PRK foram estudados de forma prospectiva, longitudinal e intervencionista. Tempo de rotura do filme lacrimal (TRFL), teste de Schirmer basal e coloração da superfície ocular com lissamina verde foram analisados no pré-operatório (pré), no 15º e no 30º dia pós-operatório (15º pós e 30º pós, respectivamente). Resultados: Agrupando todos os olhos, observou-se que o TRFL reduziu-se de forma estatisticamente significante no 15º pós em relação ao valor pré-operatório (p=0,025), mantendo-se reduzido no 30º pós (p= 0,001); não houve diferença estatisticamente significativa entre o 15º pós e o 30º pós (p=0,219). No teste da lissamina verde, houve aumento significativo desse escore, no 15º pós em relação ao período pré-operatório (p=0,021), havendo, posteriormente, redução no 30º pós (p=0,010). No teste de Schirmer basal, não foi detectada mudança estatisticamente significante ao longo dos três momentos (p=0,107). Comparando-se os testes TRFL, lissamina verde ou Schirmer basal, nos dois grupos estudados (PRK e LASIK), não houve diferença estatisticamente significante em nenhum dos três momentos (pré, 15º pós e 30º pós). Conclusão: Evidenciou-se alteração do filme lacrimal nos pacientes submetidos à cirurgia refrativa, quando foram utilizados os testes de TRFL e lissamina verde. Nas duas técnicas empregadas, não houve diferença estatisticamente significante de alteração do filme lacrimal, quando comparadas entre si (PRK e LASIK). .


Purpose: To evaluate tear film stability, ocular surface staining and tear secretion in patients undergoing PRK and femtosecond laser LASIK. Methods: Twenty eyes of 10 patients submitted to femtosecond laser LASIK and 11 eyes of the 6 patients submitted do PRK underwent tear film break-up time (TBUT), Schirmer’s basal and lissamine green staining measurements pre and postoperatively on days 15 (PO 15) and 30 (PO 30). Results: When grouping all eyes TBUT was reduced on PO 15 (p=0.025) and on PO 30 (p=0.001) compared to preoperative values. No difference was found between PO 15 and PO 30 (p=0.219). Compared to preoperative measurements, lissamine green test demonstrated a significant increase in score on PO 15 (p=0.021) and a significant reduction on PO 30 (p=0.010), when both groups were analyzed together (all 42 eyes). No changes in Schirmer’s basal test were detected in all 3 time periods (p=0.107). TBUT, lissamine green and Schirmer’s basal measurements were no different in all 3 time periods when both groups (PRK and femtosecond laser LASIK) were compared. Conclusion: TBUT and lissamine green measurements were altered after refractive surgery regardless the technique (PRK or femtosecond laser LASIK). When comparing one technique to the other, no difference was found in all measurements. .


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Tears/metabolism , Dry Eye Syndromes/diagnosis , Dry Eye Syndromes/etiology , Photorefractive Keratectomy/adverse effects , Keratomileusis, Laser In Situ/adverse effects , Lacrimal Apparatus/metabolism , Osmolar Concentration , Postoperative Complications , Staining and Labeling/methods , Surface Tension , Prospective Studies , Longitudinal Studies , Photorefractive Keratectomy/methods , Fluorescein/administration & dosage , Keratomileusis, Laser In Situ/methods , Lasers, Excimer/therapeutic use , Fluorescent Dyes/administration & dosage , Lissamine Green Dyes/administration & dosage
5.
Arq. bras. oftalmol ; 73(5): 405-408, Sept.-Oct. 2010. ilus, graf, tab
Article in Portuguese | LILACS | ID: lil-570499

ABSTRACT

OBJETIVO: Avaliar a influência da toxina botulínica na função lacrimal de pacientes com distonias faciais. MÉTODOS: Pacientes com diagnóstico de espasmo hemifacial ou blefaroespasmo essencial em atividade foram clinicamente avaliados e responderam questionário de desconforto ocular (OSDI) e foram submetidos aos testes de Schirmer I e basal, tempo de ruptura do filme lacrimal e clearance da lágrima para avaliação da função lacrimal. No dia seguinte, os pacientes receberam tratamento padronizado com toxina botulínica. O questionário e todos os exames iniciais foram repetidos 30 dias após o tratamento pelo mesmo examinador. RESULTADOS: Foram incluídos 26 pacientes no estudo, sendo 15 (57,7 por cento) com espasmo hemifacial e 11(42,3 por cento) com blefaroespasmo essencial. Nos pacientes com espasmo hemifacial a média de idade foi 70,9 ± 13,3 anos e a relação masculino/feminino foi de 1:1,5. Nos pacientes com blefaroespasmo essencial a mé­dia de idade foi 68,9 ± 8,4 anos com predomínio do sexo feminino (90,9 por cento). Após o tratamento o escore do OSDI e os valores dos testes de Schirmer I e basal diminuíram significantemente nos dois grupos. O valor médio da ruptura do filme lacrimal aumentou significantemente nos dois grupos. No teste do clearance da lágrima houve um aumento no número de olhos que apresentaram drenagem completa da lágrima após o tratamento nos dois grupos. CONCLUSÃO: O tratamento com toxina botulínica melhorou os sintomas de olho seco em pacientes com distonias faciais. Apesar da porção aquosa da lágrima ter diminuído, as alterações no piscar aumentaram a estabilidade e melhoraram a drenagem da lágrima.


PURPOSE: To analyze the influence of botulinum toxin on the lacrimal function of patients with facial dystonias. METHODS: Patients with the diagnosis of hemifacial spasm or benign essential blepharospasm were evaluated and invited to answer the Ocular Surface Index Disease (OSID) questionnaire. All patients underwent Schirmer I and basal tests; break-up time (BUT) test and lacrimal clearance evaluation. On the following day, the patients were treated with botulinum toxin. The Ocular Surface Index Disease questionnaire and all the initial tests were reapplied 30 days after the treatment by the same examiner. RESULTS: Twenty-six patients were enrolled in this study, 15 (57.7 percent) with hemifacial spasm and 11 (42.3 percent) with benign essential blepharospasm. The mean age of patients with hemifacial spasm was 70.9 ± 13.3 years and the male:female ratio was 1:1.5. In the group of patients with benign essential blepharospasm, the mean age was 68.9 ± 8.4 years with a female preponderance (90.0 percent). After the treatment, the Ocular Surface Index Disease score, Schirmer I and basal tests score decreased in both groups. The mean of Break-up time test increased significantly in both groups. The lacrimal clearance evaluation showed a greater number of eyes that achieved a complete drainage of the tears after the treatment in both groups. CONCLUSION: The treatment with botulinum toxin improved dry eye symptoms in patients with facial dystonia. Despite of the aqueous portion of tear have decreased, blink modifications improved the tear stability and drainage.


Subject(s)
Aged , Female , Humans , Male , Blepharospasm/drug therapy , Botulinum Toxins, Type A/therapeutic use , Hemifacial Spasm/drug therapy , Lacrimal Apparatus/drug effects , Neuromuscular Agents/therapeutic use , Diagnostic Techniques, Ophthalmological , Dry Eye Syndromes/drug therapy , Lacrimal Apparatus/metabolism , Treatment Outcome
6.
Korean Journal of Ophthalmology ; : 18-22, 2005.
Article in English | WPRIM | ID: wpr-226718

ABSTRACT

This study was performed to evaluate the changes of tear film and ocular surface caused by smoking. Symptom scoring, tear film break-up time (BUT), basal tear secretion test, corneal sensitivity test, keratoepitheliopathy scoring, and conjunctival impression cytology were performed in 29 smokers (58 eyes) and 26 non-smokers (52 eyes). Tear film BUT, basal tear secretion, corneal sensitivity, and squamous metaplasia were 7.71 +/- 2.66 sec, 6.29 +/- 2.85 mm, 53.69 +/- 5.69 mm, and 2.45 +/- 1.26 in smokers and 9.62 +/- 3.14 sec, 10.04 +/- 3.87 mm, 56.46 +/- 4.79 mm, and 1.12 +/- 0.83 in non-smokers, respectively (p< 0.05). Symptom score, keratoepitheliopathy score, and goblet cell density were not significantly different between the two groups. Tear film BUT was shorter, basal tear secretion and corneal sensitivity were lower, and squamous metaplasia was higher in heavy smokers than in light smokers. In conclusion, smoking deteriorates the tear film and ocular surface with decreased quantity and quality of tear film, decreased corneal sensitivity, and squamous metaplasia, and this deterioration is related to the amount of smoking.


Subject(s)
Adult , Aged , Humans , Male , Middle Aged , Cell Count , Conjunctiva/metabolism , Cornea/metabolism , Epithelial Cells/pathology , Goblet Cells/metabolism , Lacrimal Apparatus/metabolism , Metaplasia , Smoking/metabolism , Tears/chemistry
7.
Acta Med Indones ; 2004 Jul-Sep; 36(3): 130-5
Article in English | IMSEAR | ID: sea-47095

ABSTRACT

AIM: To evaluate correlation between blood glucose control, corneal sensitivity and lacrimal secretion in type 2 DM with peripheral neuropathy. METHODS: A cross sectional study has been conducted in 20 type DM with peripheral neuropathy and 20 without peripheral neuropathy at the Department of Internal Medicine and Ophthalmology, Ciptomangunkusumo Hospital, Faculty of Medicine University of Indonesia, from August through November 2002. All subject underwent a comprehensive medical examination, including esthesiometer Semmes-Weinstein 10 g, HbA1c, Schirmer test, and corneal sensitivity measurements. RESULTS: The mean corneal sensitivity was significantly lower in diabetic patients with neuropathy (p=0.000). HbA1(c) was related to corneal sensitivity (p=0.016). CONCLUSION: In type 2 DM with peripheral neuropathy, corneal sensitivity was demonstrated to be significantly decrease, all of which seems to be due to the status of blood glucose control.


Subject(s)
Adult , Aged , Case-Control Studies , Cornea/physiopathology , Corneal Diseases/physiopathology , Cross-Sectional Studies , Diabetes Mellitus, Type 2/physiopathology , Diabetic Neuropathies/diagnosis , Diagnostic Techniques, Ophthalmological , Female , Glycated Hemoglobin/diagnosis , Humans , Lacrimal Apparatus/metabolism , Logistic Models , Male , Middle Aged , Sensation , Sensitivity and Specificity
8.
Rev. bras. oftalmol ; 59(3): 209-15, mar. 2000. tab
Article in Portuguese | LILACS | ID: lil-279971

ABSTRACT

Objetivo: Conhecer as características dos portadores de afecçöes da via lacrimal (VL) atendidos em um serviço de referência. Local: Faculdade de Medicina de Botucatu. Métodos: Avaliou-se, restropectivamente, 590 pacientes quanto a idade, sexo, regiäo de procedência e diagnóstico topográfico. Resultados: Quanto ao sexo, 69,7 (por cento) dos pacientes eram do sexo feminino, com relaçäo de 2,3 mulheres x 1 homem. As afecçöes da glândula lacrimal ocorreram em 0,5 (por cento), alteraçöes da VL alta em 5,6 (por cento) e da VL baixa em 93,9 (por cento). As patologias da VL alta foram mais frequêntes em homens e da VL baixa em mulheres. Conclusäo: As afecçöes da VL, em geral, foram mais freqüêntes em mulheres. O acometimento da VL baixa foi o mais observado


Subject(s)
Humans , Child , Adolescent , Adult , Middle Aged , Lacrimal Apparatus/pathology , Lacrimal Apparatus/metabolism
9.
Bulletin of Alexandria Faculty of Medicine. 1994; 30 (3): 687-96
in English | IMEMR | ID: emr-120978

ABSTRACT

None of the drugs currently in use in treatment of psoriasis is ideal and without side effects. In this study 30 patients of psoriasis vulgaris were treated with the oral vitamin D3 analogue one alpha-OH- D3 [one alpha tablet-Leo Pharmaceutica] in a dose of 1.0 ug per day for successive 20 weeks. Response of the drug was evaluated by applying the new psoriasis area and severity index [PASI] technique before, during and after commencement of therapy. Also, lacrimal glands tear secretion was evaluated using Schirmer's one test before and after therapy and compared with normal 30 age and sex matched subjects [control group]. Psoriatic skin lesions showed satisfactory improvement in 60% of the studied patients with a percent reduction in PASI of more than 50. Psoriatic patients showed significant low tear secretion of their eyes compared with the normal control group, which aroused the possibility of association of dry eyes syndrome with psoriasis. Nonsignificant reduction in Schirmer's one test values was observed in patients after the course of therapy. No significant changes were occurred in levels of serum calcium, phosphorus or parathormone due to one alpha-OH-D3 drug use in the studied group of patients. Very little and negligible side effects were reported during the drug use in three patients only out of 30. It was concluded that one alpha-OH-D3 is an effective and side effect free drug modality in the treatment of psoriasis vulgaris. Combined therapy of one alpha-OH-D3 oral tablets with other systemic drugs currently used in treatment of psoriasis requires further evaluation, especially those drugs affecting the immune system of the patients


Subject(s)
Humans , Male , Female , Lacrimal Apparatus/metabolism , Cholecalciferol , Vitamin D , Tears/physiology
10.
Folha méd ; 105(3): 135-46, set. 1992. tab, ilus
Article in Portuguese | LILACS | ID: lil-129091

ABSTRACT

Promovendo uma extensa revisäo anatomoclínica do aparelho lacrimal e suas referências com a anatomia cirúrgica do nariz, os autores assinalam a infrequente ocorrência de epífora após rinoplastias. Apresentando um caso, exemplificam a importância da existência de variaçöes anatômicas e de anomalias lacrimais ou orbitárias prévias específicas, explicitando o mecanismo etiopatogênico destas complicaçöes, assim como de seu tratamento. Ressaltam, ainda, o cuidado que se deve ter ao indicar-se a rinoplastia em pacientes que apresentam história familiar de anomalias congênitas do sistema lacrimal excretor, além do preciso diagnóstico prévio de discretas anormalidades distópicas orbitárias


Subject(s)
Humans , Female , Adult , Lacrimal Apparatus Diseases/etiology , Rhinoplasty/adverse effects , Lacrimal Apparatus/abnormalities , Lacrimal Apparatus/anatomy & histology , Lacrimal Apparatus/physiology , Lacrimal Apparatus/metabolism
11.
Arq. Inst. Penido Burnier ; 30(2): 133-6, jul. 1988. tab
Article in Portuguese | LILACS | ID: lil-77064

ABSTRACT

O autor faz resumo anátomo-fisiológico das vias lacrimais excretoras. Tece consideraçöes sobre diagnóstico das vias lacrimais altas e indicaçöes da lacorinostomia. A seguir, descreve a técnica cirúrgica, que consiste em se fazer comunicaçäo direta entre o lago lacrimal e a fossa nasal, os cuidados pós-operatórios e as conplicaçöes. Apresenta a casuística do Instituto Penido Burnier de 24 olhos operados, havendo seis casos de insucesso


Subject(s)
Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Humans , Male , Female , Lacrimal Apparatus/metabolism , Lacrimal Duct Obstruction/surgery , Lacrimal Apparatus/anatomy & histology , Lacrimal Apparatus/physiology , Methods , Lacrimal Duct Obstruction/diagnosis
13.
Belo Horizonte; s.n; 1988. 91 p. tab, graf.
Thesis in Portuguese | LILACS | ID: lil-184994

ABSTRACT

Com o objetivo de determinar o tempo de drenagem do contraste nas Vias Lacrimais Excretoras, foram realizadas Dacriocistografias Funcionais em 62 pacientes normais, totalizando 124 V.L., divididas em dois grupos. No grupo A, em 31 pacientes foi usado o contraste hidrossolúvel, Hypaque a 75 por cento, encontrando-se o tempo médio de 11,82 minutos para a drenagem completa. No grupo B, 31 pacientes foram estudados com o contraste lipossolúvel, Lipiodol Ultra Fluido a 40 por cento, que levou em média 40,25 minutos para a drenagem completa. Nos dois grupos, houve uma variabilidade grande nos resultados, com V.L. apresentando, maior ou menor tempo que a média, reafirmando o caráter complementar da D.C.G., no estudo da obstruçäo funcional das V.L.


Subject(s)
Humans , Male , Female , Adult , Diatrizoate Meglumine , Lacrimal Apparatus , Papaver , Academic Dissertation , Contrast Media , Lacrimal Apparatus/physiology , Lacrimal Apparatus/metabolism
14.
Indian J Ophthalmol ; 1987 ; 35(5-6): 5-15
Article in English | IMSEAR | ID: sea-71280
SELECTION OF CITATIONS
SEARCH DETAIL