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1.
Braz. j. otorhinolaryngol. (Impr.) ; 85(6): 746-752, Nov.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1055505

ABSTRACT

Abstract Introduction: The use of saline irrigation for nasal washes is a well established procedure in the treatment of sinonasal inflammation and infection. In addition to saline solutions, Ringer's lactate is also an efficient option for nasal washes and humidification. Objective: To assess the comfort, humidification and tolerance regarding stinging sensation, provided by sodium chloride nasal gel at the concentrations of 4.5 mg/g and 6.0 mg/g through questionnaires answered by the patients. Methods: A total of 60 patients, 56 females, aged between 22 and 66 years old (mean age of 47) and 4 males, aged between 36 and 66 years (mean age of 49), were included in the study for a period of 17 days (±2 days) treatment. The patients were monitored by a general practitioner throughout the study period. They were instructed to apply each product in both nostrils twice a day during a 7-day period (±2 days). The patients were evaluated prior to the use of the first product at visit 0 (V0), after 7 days of treatment (±2 days) at visit 1 (V1), after 3 days of product discontinuation at visit 2 (V2) and after 7 days (±2 days) of treatment with the second product, in visit 3 (V3). Results: A significant difference (5% significance) was observed regarding comfort and stinging sensation between the two different concentrations; comfort was higher and stinging was lower with the 6.0 mg/g concentration gel. No difference in humidification was observed between the two treatments. Conclusion: Ringer's lactate at the concentration of 6.0 mg/g was superior to that at 4.5 mg/g for parameters comfort and stinging sensation. No statistical difference was observed between the two products regarding nasal humidification.


Resumo Introdução: O uso de soluções salinas para lavagem nasal está consagrado no tratamento de quadros inflamatórios e infecciosos nasossinusais. Além das soluções salinas, o ringer lactato é uma importante opção tanto para lavagem quanto para a hidratação nasal. Objetivo: Avaliar a tolerabilidade (ardência e conforto) e umidificação do produto gel nasal cloreto de sódio 4,5 mg/g em relação ao ringer lactato 6,0 mg/g, por meio de questionários respondidos pelos pacientes. Método: Foram incluídos 60 pacientes, 56 mulheres (22-66 anos; média: 47 anos) e quatro homens (36-66 anos; média: 49 anos) foram incluídos no estudo de 17 dias (± 2 dias) de tratamento. Os pacientes foram supervisionados por um clínico geral durante todo o período do estudo. Os pacientes usaram os produtos com uma borrifada em cada narina duas vezes ao dia, durante sete dias (± 2 dias). As formulações foram avaliadas antes do uso do primeiro produto na visita 0 (V0), após sete dias (± 2 dias) de tratamento na visita 1 (V1), após três dias de interrupção do primeiro tratamento na visita 2 (V2) e após sete dias (± 2 dias) de uso do segundo produto na visita 3 (V3). Resultados: Foi observada diferença significante para o conforto das vias nasais, (significância de 5%), na comparação entre os tratamentos nos atributos de conforto e ardência. O conforto das vias nasais foi superior e a ardência inferior para o gel nasal ringer lactato 6,0 mg/g em comparação ao gel cloreto de sódio 4,5 mg/g. Não foi observada diferença significante para a umidificação entre os tratamentos. Conclusão: O gel ringer lactato 6,0 mg/g foi superior ao produto gel cloreto de sódio 4,5 mg/g nos quesitos conforto e ardência. Não foi observada diferença estatisticamente significante entre os tratamentos em relação à umidificação das vias nasais.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Sodium Chloride/administration & dosage , Nose Diseases/drug therapy , Ringer's Lactate/administration & dosage , Nasal Mucosa/drug effects , Single-Blind Method , Nasal Lavage Fluid , Gels , Humidity , Nasal Mucosa/physiopathology
2.
Braz. j. otorhinolaryngol. (Impr.) ; 84(2): 185-190, Mar.-Apr. 2018. tab
Article in English | LILACS | ID: biblio-889377

ABSTRACT

Abstract Introduction Nasal irrigation solutions are widely used following endonasal surgery. These irrigation solutions remove infective debris and crusts, reducing the probability of synechia formation, and accelerate mucosal healing. Objective The aim of the present study was to compare the effects of nasal irrigation solutions with different contents following septoplasty and concha radiofrequency. Methods The present study was a prospective, randomized, controlled simple blind study of 120 patients who underwent septoplasty and bilateral concha radiofrequency. Patients were divided into four groups according to the nasal irrigation solution used: tap water, buffered isotonic saline, saline with xylitol, and hypertonic sea water. Patients were examined on the 7th and 15th postoperative days. A saccharine test was applied to determine mucociliary activity preoperatively and on the 7th and 15th postoperative days. Patients were asked about drying and obstruction using a 10 cm visual analog scale. In addition, patients were examined to determine the crusting score. Results There was no significant difference found in the preoperative and 7th and 15th postoperative days' mucociliary clearance times among the four groups. The crusting score was found to be significantly lower in the hypertonic sea water group (p < 0.001). Drying and obstruction on the 7th and 15th postoperative days were found to be significantly more comfortable in the hypertonic sea water group (p < 0.001). Conclusion Hypertonic sea water is the recommended irrigation solution, as it is associated with less crusting, drying, and obstruction in the nose for the postoperative period following septoplasty and concha radiofrequency.


Resumo Introdução Soluções para irrigação nasal são amplamente usadas após cirurgias endonasais. Essas soluções removem os resíduos e crostas, reduzem a probabilidade de formação de sinéquias e aceleram a cicatrização da mucosa. Objetivo O objetivo do presente estudo foi comparar os efeitos das soluçoes para irrigaçao nasal com diferentes conteudos apos septoplastia e turbinoplastia com radiofrequencia. Método O presente estudo foi um estudo cego simples, randomizado, controlado e prospectivo de 120 pacientes submetidos a septoplastia e turbinoplastia bilateral com radiofrequencia. Os pacientes foram divididos em quatro grupos de acordo com a soluçao nasal utilizada: agua da torneira, soluçao salina isotonica tamponada, soluçao salina com xilitol e agua do mar hipertonica. Os pacientes foram examinados no 7° e 15° dias do pos-operatorio. O teste de sacarina foi utilizado para determinar a atividade mucociliar pre-operatoria e no 7° e 15° dias do pos-operatorio. Os pacientes foram questionados sobre a sensaçao de secura e obstruçao nasais utilizando uma escala visual analógica de 10 cm. Alem disso, os pacientes foram examinados para determinar o escore em relaçao a crostas. Resultados Não houve diferença significativa entre o pré-operatório e o sétimo e 15° dias do pós-operatório dos tempos de clearance mucociliar entre os quatro grupos. Verificou-se que o escore em relação a crostas foi significativamente menor no grupo que usou água do mar hipertônica (p < 0,001). As sensações de secura e obstrução nasais no sétimo e 15° dias do pós-operatório mostraram-se significativamente mais confortáveis no grupo água do mar hipertônica (p < 0,001). Conclusão A água de mar hipertônica é a solução de irrigação recomendada, pois está associada a menor incidência de crostas, secura e obstrução nasais no pós-operatório de cirurgia de septoplastia e das conchas nasais com radiofrequência.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Young Adult , Rhinoplasty/adverse effects , Mucociliary Clearance/drug effects , Nasal Lavage , Fresh Water , Nasal Mucosa/drug effects , Nasal Septum/surgery , Postoperative Complications/prevention & control , Saline Solution, Hypertonic/administration & dosage , Seawater , Administration, Intranasal , Double-Blind Method , Prospective Studies , Catheter Ablation/adverse effects , Catheter Ablation/methods , Therapeutic Irrigation
3.
Arq. bras. oftalmol ; 81(1): 53-58, Jan.-Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-888181

ABSTRACT

ABSTRACT Purpose: To investigate the potential effects of chronic exposure to a nasal decongestant and its excipients on ocular tissues using an experimental rat model. Methods: Sixty adult male Wistar rats were randomized into six groups. The first two groups were control (serum physiologic) and Otrivine® groups. The remaining four groups received the Otrivine excipients xylometazoline, benzalkonium chloride, sorbitol, and ethylene diamine tetra acetic acid. Medications were applied into both nostrils twice a day for 8 weeks. Before the rats were sacrificed, epithelial staining, the Schirmer test, and intraocular pressure measurements were performed under ketamine/xylasine anesthesia (50 and 5 mg/kg, respectively). Results: Epithelial defects and dry eye were common findings in all study groups. Cataracts developed in two cases clinically. Histopathological evaluation revealed many different pathological alterations in all parts of the ocular tissues such as corneal edema, polypoid proliferation and hyalinization of the vessel wall, cystic formation of the lens, retinal nerve fiber layer degeneration, and corpora amylacea formation of the lacrimal gland. Conclusions: Prolonged usage of the nasal decongestant xylometazoline and its excipients may cause ophthalmic problems such as dry eyes, corneal edema, cataracts, retinal nerve fiber layer, and vascular damage in rats. Although these results were obtained from experimental animals, ophthalmologists should keep in mind the potential ophthalmic adverse effects of this medicine and/or its excipients and exercise caution with drugs containing xylometazoline, ethylene diamine tetra acetic acid, benzalkonium chloride and sorbitol for patients with underlying ocular problems.


RESUMO Objetivo: Investigar os possíveis efeitos da exposição crônica de descongestionante nasal e seus excipientes em tecidos oculares, utilizando um modelo experimental com ratos. Métodos: Sessenta ratos Wistar adultos machos foram divididos aleatoriamente em seis grupos. Os primeiros dois grupos foram controle (soro fisiológico) e Otrivina®. Os quatro grupos restantes receberam os excipientes de Otrivina, tais como Xilometazolina, Benzalcônio, Sorbitol e Ácido Etilenodiamino Tetracético (EDTA). Os medicamentos foram aplicados em ambas as narinas dos ratos, duas vezes ao dia, durante 8 semanas. Antes que os ratos fossem sacrificados, a coloração epitelial, o teste de Schirmer e a medida da pressão intraocular foram realizados sob anestesia com Ketamina/Xilasina (50 e 5 mg/kg, respectivamente). Resultados: Defeitos epiteliais e olho seco foram achados comuns nos grupos de estudo. A catarata desenvolveu-se clinicamente em dois casos. A avaliação histopatológica revelou a existência de alterações em todas as partes dos tecidos oculares, tais como edema de córnea, proliferação polipoide e hialinização da parede vascular, formação cística da lente, degeneração da camada de fibra nervosa da retina (RNFL) e formação de corpos amiláceos da glândula lacrimal. Conclusões: O uso prolongado do descongestionante nasal Xilometazolina e seus excipientes pode causar vários problemas oftalmológicos, como olho seco, edema de córnea, catarata, RNFL e dano vascular em ratos. Embora esses resultados tenham sido obtidos a partir de animais experimentais, os oftalmologistas devem ter em mente os potenciais efeitos oftalmológicos adversos desse medicamento e/ou de seus excipientes.


Subject(s)
Animals , Male , Nasal Decongestants/adverse effects , Eye/drug effects , Eye Diseases/chemically induced , Imidazoles/adverse effects , Nasal Mucosa/drug effects , Benzalkonium Compounds/adverse effects , Severity of Illness Index , Random Allocation , Edetic Acid/adverse effects , Rats, Wistar , Disease Models, Animal , Eye/pathology , Eye Diseases/pathology , Intraocular Pressure , Nasal Mucosa/pathology
4.
Braz. j. otorhinolaryngol. (Impr.) ; 83(6): 619-626, Nov.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-889326

ABSTRACT

Abstract Introduction: Antibiotics are frequently used for the treatment of rhinosinusitis. Concerns have been raised regarding the adverse effects of antibiotics and growing resistance. The lack of development of new antibiotic compounds has increased the necessity for exploration of non-antibiotic compounds that have antibacterial activity. Amlodipine is a non-antibiotic compound with anti-inflammatory activity. Objective: In this study we aimed to investigate the potential role of amlodipine in the treatment of rhinosinusitis by evaluating its effects on tissue oxidative status, mucosal histology and inflammation. Methods: Fifteen adult albino guinea pigs were inoculated with Staphylococcus aureus and treated with saline, cefazolin sodium, or amlodipine for 7 days. The control group was composed by five healthy guinea pigs. Animals were sacrificed after the treatment. Histopathological changes were identified using Hematoxylin-Eosin staining. Inflammation was assessed by Polymorphonuclear Leukocyte infiltration density. Tissue levels of antioxidants (superoxide dismutase, glutathione) and an oxidative product (malondialdehyde) were determined. Results: In rhinosinusitis induced animals, amlodipine reduced loss of cilia, lamina propria edema and collagen deposition compared to placebo (saline) and although not superior to cefazolin, amlodipine decreased polymorphonuclear leukocyte infiltration. The superoxide dismutase activity and glutathione levels were reduced, whereas the malondialdehyde levels were increased significantly in all three-treatment groups compared to the control group. Amlodipine treated group showed significantly increased superoxide dismutase and glutathione levels and decreased malondialdehyde levels compared to all treatment groups. Conclusion: The non-antibiotic compound amlodipine may have a role in acute rhinosinusitis treatment through tissue protective, antioxidant and anti-inflammatory mechanisms.


Resumo Introdução: Antibióticos são frequentemente usados para o tratamento de rinossinusite. Questões têm sido levantadas sobre os efeitos adversos dos antibióticos e a resistência crescente. A falta de desenvolvimento de novos compostos antibióticos aumentou a necessidade da exploração de compostos não antibióticos que têm atividade antibacteriana. A amlodipina é um composto não antibiótico com atividade anti-inflamatória. Objetivo: O objetivo desse estudo foi investigar o papel potencial da amlodipina no tratamento da rinossinusite, avaliando seus efeitos sobre o estado oxidativo do tecido, histologia da mucosa e inflamação. Método: Quinze cobaias albinas adultas foram inoculadas com Staphylococcus aureus e tratadas com solução salina, cefazolina ou amlodipina durante sete dias. O grupo controle incluiu cinco cobaias saudáveis. Os animais foram sacrificados após o tratamento. Alterações histopatológicas foram identificadas com a coloração de hematoxilina-eosina. A inflamação foi avaliada pela densidade de infiltração de leucócitos polimorfonucleares. Foram determinados os níveis teciduais de antioxidantes (superóxido dismutase, glutationa) e um produto de oxidação (malondialdeído). Resultados: Em animais com rinossinusite induzida, a amlodipina reduziu a perda dos cílios, edema da lâmina própria e deposição de colágeno em comparação com o grupo placebo (solução salina) e embora não seja superior à cefazolina, a amlodipina diminuiu a infiltração de leucócitos polimorfonucleares. Os níveis de atividade da superóxido dismutase e glutationa foram reduzidos, enquanto os níveis de malondialdeído aumentaram significativamente nos três grupos de tratamento em comparação ao grupo controle. O grupo tratado com amlodipina apresentou aumento significante dos níveis de superóxido dismutase e glutationa e diminuição dos níveis de malondialdeído em comparação com todos os grupos de tratamento. Conclusão: O composto não antibiótico amlodipina pode ter um papel no tratamento da rinossinusite aguda através de mecanismos protetores de tecido, antioxidantes e anti-inflamatórios.


Subject(s)
Animals , Sinusitis/drug therapy , Rhinitis/drug therapy , Amlodipine/pharmacology , Anti-Inflammatory Agents/pharmacology , Reference Values , Staphylococcus aureus , Superoxide Dismutase/analysis , Enzyme-Linked Immunosorbent Assay , Random Allocation , Cefazolin/therapeutic use , Cefazolin/pharmacology , Reproducibility of Results , Treatment Outcome , Amlodipine/therapeutic use , Glutathione/analysis , Glutathione/drug effects , Guinea Pigs , Malondialdehyde/analysis , Anti-Inflammatory Agents/therapeutic use , Anti-Bacterial Agents/therapeutic use , Anti-Bacterial Agents/pharmacology , Nasal Mucosa/drug effects , Nasal Mucosa/pathology
5.
Int. j. morphol ; 34(1): 85-89, Mar. 2016. ilus
Article in English | LILACS | ID: lil-780479

ABSTRACT

The objective of this study was to evaluate the histopathologic and immunohistochemical effects of propineb on rat nasal mucosa. Twenty adult Sprague-Dawley rats weighing 180­220 g, were used as experimental animals. The rats were divided into propineb and control groups. The control group received distilled water with spray at the same time period. The experiment was terminated after three weeks. In each case, sections of the nosewere taken. In experimental group, microscopic examination of nasal respiratory mucosa revealed that degenerative changes in epithelium were observed in sections of propineb-treated group. There were also leukocyte infiltration and vascular dilatation detected in the connective tissue.We detected CD34-immunoreactive mononuclear cells and endothel cells in the lamina propria of propineb group. In propineb group compared to the control group, the respiratory epithelium, goblet and basal cell nuclei were stained positive for PCNA. Propineb inhalation may be irritating to the nasal mucosa.


El objetivo de este estudio fue evaluar los efecto histopatológicos e inmunohistoquímicos del Propineb en la mucosa nasal de 20 ratas Sprague-Dawley adultas con un peso de 180-220 g, las que fueron utilizadas como animales de experimentación. Las ratas se dividieron en grupos Propineb y Control. El grupo control recibió agua destilada en aerosol nasal en el mismo período de tiempo que el grupo Propineb. El experimento duró tres semanas. Posteriormente, en cada caso se tomaron muestras de la mucosa nasal. En el grupo experimental, tratado con Propineb, el examen microscópico de la mucosa respiratoria nasal reveló cambios degenerativos en el epitelio. Se detectó también infiltración de leucocitos y dilatación vascular en el tejido conectivo, junto con células mononucleares CD34 inmunorreactiva y células endoteliales en la lámina propia. En el grupo Propineb, en comparación con el grupo control, los núcleos de la porción respiratoria, las células caliciformes y basales resultaron positivas a la tinción del antígeno nuclear de proliferación celular (PCNA). La inhalación de Propineb puede ser un irritante para la mucosa nasal.


Subject(s)
Nasal Mucosa/drug effects , Nasal Mucosa/pathology , Zineb/analogs & derivatives , Zineb/toxicity , Antigens, CD34 , Immunohistochemistry , Nasal Mucosa/ultrastructure , Proliferating Cell Nuclear Antigen , Rats, Sprague-Dawley
7.
Asian Pac J Allergy Immunol ; 2008 Jun-Sep; 26(2-3): 89-95
Article in English | IMSEAR | ID: sea-37154

ABSTRACT

The objective of this study was to compare the effectiveness of montelukast combined with loratadine once daily to loratadine alone for a 2-week treatment course of allergic rhinitis in a randomized, double-blind placebo controlled trial which enrolled 115 children, 6- 15-years-old. The patients were randomly assigned to receive montelukast and loratadine (treatment group) or placebo and loratadine (control group). The primary outcome was the mean percent change of the total daytime nasal symptom scores (PDTS) and secondary outcomes were the mean percent changes of the nighttime nasal, daytime eye and composite symptom scores (PNTS, PES, PCS), as well as the nasal secretion, turbinate swelling and nasal congestion scores (PNSS, PTSS, PNCS). There were no significant differences in the PDTS of the 2 groups. The change in the night time nasal congestion score (PNTS-congestion) was higher in the treatment group, but not statistically significant (p = 0.077). Only the mean percent change in decreased turbinate swelling was significantly greater in the montelukast and loratadine group than the loratadine alone group (-22 +/- 7 vs. -1 +/- 5, p < 0.05).


Subject(s)
Acetates/administration & dosage , Adolescent , Asthma/drug therapy , Child , Drug Therapy, Combination , Female , Histamine H1 Antagonists, Non-Sedating/administration & dosage , Humans , Leukotriene Antagonists/administration & dosage , Loratadine/administration & dosage , Male , Nasal Mucosa/drug effects , Nasal Obstruction/etiology , Quinolines/administration & dosage , Rhinitis, Allergic, Perennial/drug therapy , Severity of Illness Index , Treatment Outcome
8.
Rev. bras. otorrinolaringol ; 74(5): 746-754, set.-out. 2008. ilus, tab, graf
Article in English, Portuguese | LILACS | ID: lil-499850

ABSTRACT

A rinometria acústica tem sido utilizada como teste específico da permeabilidade nasal. OBJETIVO: O propósito do presente estudo foi determinar valores de referência de áreas de secção transversa da cavidade nasal de adultos sadios pela técnica rinométrica. DESENHO: Estudo clínico prospectivo. CASUÍSTICA E MÉTODO: Trinta voluntários sem evidências de obstrução nasal com idade entre 18 e 30 anos (14 homens e 16 mulheres) foram avaliados antes e após a aplicação tópica de vasoconstritor nasal. As áreas de secção transversa foram medidas nos três entalhes do rinograma correspondentes à válvula nasal (AST1), região anterior (AST2) e região posterior (AST3) das conchas nasais inferior e média. RESULTADOS: Os valores médios (±DP) das áreas aferidas em 60 cavidades antes da vasoconstrição nasal foram os seguintes: 0,54±0,13cm2 (AST1), 0,98±0,31cm2 (AST2) e 1,42±0,44cm2 (AST3). Após a vasoconstrição, os valores médios dos três segmentos analisados foram significantemente maiores (p<0,05). Não foram constatadas diferenças significantes entre os sexos. CONCLUSÃO: As áreas seccionais nasais de adultos obtidas para adultos podem ser usadas para fins de controle no estudo de pacientes com obstrução nasal, em complementação aos volumes nasais relatados anteriormente por nosso grupo.


Acoustic rhinometry (AR) has been used as a specific test for nasal patency. AIM: this study aimed to set the reference values for nasal cavity cross-section geometry in healthy adults through AR. STUDY DESIGN: this is a clinical prospective study. MATERIALS AND METHOD: thirty volunteers (14 males and 16 females) without signs of nasal obstruction and aged between 18 and 30 years were enrolled in this study. They were assessed before and after being treated topically with a nasal vasoconstrictor drug. Their nasal cross-sectional areas were measured at the three dips of the rhinogram, corresponding respectively to the nasal valve (CSA1), the anterior (CSA2), and the posterior (CSA3) region of the inferior and middle turbinate. RESULTS: the mean areas (±SD) for 60 nasal cavities before nasal vasoconstriction were: 0.54±0.13cm2 (CSA1), 0.98±0.31 cm2 (CSA2), and 1.42±0.44cm2 (CSA3). After vasoconstriction, the mean values of the three segments analyzed were significantly larger (p<0.05). Gender was not a statistically significant variable. CONCLUSION: The nasal cross-sectional areas obtained for adults may be used for control purposes when studying patients with nasal obstruction, in conjunction with the nasal volume values previously reported by our group.


Subject(s)
Adolescent , Adult , Female , Humans , Male , Young Adult , Nasal Cavity/anatomy & histology , Nasal Obstruction/diagnosis , Rhinometry, Acoustic , Vasoconstrictor Agents , Anthropometry/methods , Nasal Cavity/drug effects , Nasal Cavity/physiology , Nasal Mucosa/drug effects , Prospective Studies , Vasoconstrictor Agents/administration & dosage , Vasoconstrictor Agents/adverse effects , Young Adult
9.
Rev. bras. otorrinolaringol ; 71(2): 132-138, mar.-abr. 2005. ilus
Article in Portuguese | LILACS | ID: lil-408682

ABSTRACT

Luffa operculata é o nome botânico da buchinha-do-norte ou cabacinha, uma planta medicinal usada popularmente no tratamento das rinites e rinossinusites. Na Europa e nos EUA, está em medicamentos homeopáticos. No Brasil, a infusão (chá) do fruto seco de Luffa operculata é utilizada para inalacão ou instilacão nasal, resultando em liberacão profusa de muco que alivia os sintomas nasossinusais, mas há relatos freqüentes de irritacão nasal, epistaxe e anosmia. FORMA DE ESTUDO: Experimental. MATERIAL E MÉTODO: Avaliamos os efeitos da infusão de Luffa operculata em diferentes concentracões, no modelo experimental do palato isolado de rã, examinando 46 palatos após imersão. Quatro grupos (n=10) foram testados com infusão feita em Ringer-rã (solucão isotônica): controle; 60mg/l; 600mg/l e 1200mg/l. Um grupo foi testado em água (600mg/l H2O, n=6). Coletamos amostras do epitélio para estudo histológico à microscopia-de-luz e microscopia eletrônica de transmissão. RESULTADOS: Nos palatos tratados, os achados à microscopia-de-luz mostram lesões epiteliais de padrão tóxico, dose-dependentes. Na microscopia eletrônica, aumento dos espacos intercelulares e ruptura de tight junctions apontam para anormalidade no transporte iônico e de fluidos. CONCLUSÕES: A infusão de Luffa operculata, nas concentracões utilizadas popularmente, promove alteracões significantes na estrutura e ultraestrutura epitelial deste modelo ex vivo de mucosa respiratória.


Subject(s)
Animals , Epithelium/drug effects , Luffa/adverse effects , Nasal Mucosa/drug effects , Palate/drug effects , Epithelium/pathology , Models, Animal , Nasal Mucosa/pathology , Phytotherapy , Plant Preparations , Palate/pathology , Rana catesbeiana , Rhinitis/drug therapy , Sinusitis/drug therapy
10.
El-Minia Medical Bulletin. 2001; 12 (1): 231-240
in English | IMEMR | ID: emr-56811

ABSTRACT

The mucociliary function is a very important defence mechanism of the respiratory tract. The effects of local nasal preparation [fluticasone proprionate, Flixonase[R]] on nasal ciliary beat frequency [CBF], clinical findings and subjective symptoms were investigated in 32 patients with chronic sinusitis. The investigations were made before and several weeks after treatment. CBF was measured using the microphotometric technique. The CBF had changed significantly after treatment. By rhinoscopy, 18 patients have improved, while 6 patients remained unchanged and six patients worsened. No positive correlation was found between CBF and clinical findings. No correlation could be found between the subjective and the clinical findings


Subject(s)
Humans , Male , Female , Palliative Care , Paranasal Sinuses , Nasal Mucosa/drug effects , Treatment Outcome , Adrenal Cortex Hormones
11.
An. otorrinolaringol. mex ; 43(3): 134-6, jun.-ago 1998. ilus
Article in Spanish | LILACS | ID: lil-232823

ABSTRACT

Objetivo: Demostrar que la aplicación de ketanserina en ungüento al 2 por ciento acelera el cierre de las laceraciones de la mucosa septal producidas intencionalmente en consejos Nueva Zelanda al compararlas con un placebo con el mismo vehículo que la ketanserina (polietilenglicol). Se realizó un estudio longitudinal, prospectivo, experimental, comparativo y ciego, utilizando 10 conejos Nueva Zelanda divididos en dos grupos al azar, a los que se les realizó rinotomía lateral y bajo visión microscópica se laceró la mucosa septal incluyendo mucopericondrio. Posteriormente se aplicó ungüento con placebo (polietilenglico) o ketanserina al 2 por ciento durante cinco días, tomando fotografía antes y después de la aplicación y muestras histológicas al primero, tercero y quinto días las cuales se analizaron en el departamento de Anatomía Patológica con tinción de hematoxilina-eosina. Se concluye que la ketanserina en ungüento al 2 por ciento acelera el cierre clínica e histológicamente (mayor cantidad de colágena y fibroblastos) al compararlas contra placebo. El análisis estadístico se realizó con la prueba de Pickman Welch, obteniendo una p< 0.05


Subject(s)
Animals , Male , Rabbits , Experiment of Substances , Ketanserin/administration & dosage , Nasal Mucosa/drug effects , Nasal Mucosa/injuries , Nasal Septum/drug effects , Nasal Septum/injuries
12.
HB cient ; 4(1): 22-5, jan.-abr. 1997. tab
Article in Portuguese | LILACS | ID: lil-214111

ABSTRACT

O níquel, administrado intraperitonealmente na rata prenhe, no 10º dia de prenhez resultou em peso fetal diminuído, glândulas nasais pequenas, com núcleos mais alongados.


Subject(s)
Animals , Female , Pregnancy , Rats , Fetus/drug effects , Nasal Mucosa/cytology , Nasal Mucosa/drug effects , Nickel/pharmacology , Karyometry , Rats, Wistar
14.
An. otorrinolaringol. mex ; 39(3): 127-32, jun.-ago. 1994. tab, ilus
Article in Spanish | LILACS | ID: lil-143078

ABSTRACT

Existen muchos descongestivos nasales y su empleo en ocasiones es indiscriminado, posiblemente por la publicidad y disponibilidad de los mismos, ya que son drogas que no requieren prescripción médica; sin embargo son escasos los reportes en relación a los cambios histológicos de la mucosa nasal por el empleo de estos fármacos. Se realizó un estudio prospectivo, comparativo y experimental, en 47 ratones, en los cuales se observaron las alteraciones histológicas de la mucosa nasal ocasionadas por fenilefrina, oximetazolina y solución fisiológica al cabo de cinco días, cuatro y ocho semanas. A los cinco días se observó que la oximetazolina ocasionó mayores cambios histológicos que la fenilefrina. A las cuatro semanas el grupo de fenilefrina presentó mayores alteraciones que el de oxometazolina, y a las ocho semanas los cambios fueron similares en ambos grupos. En los ratones que recibieron solución fisiológica, se identificaron cambios estructurales importantes en las tres etapas del estudio


Subject(s)
Mice , Histology, Comparative/trends , Nasal Mucosa/anatomy & histology , Nasal Mucosa/drug effects , Oxymetazoline/adverse effects , Phenylephrine/adverse effects
15.
Bulletin of Alexandria Faculty of Medicine. 1994; 30 (1): 223-30
in English | IMEMR | ID: emr-32009

ABSTRACT

The histopathological changes occurred in the rabbit mucosa under the effect of a conventional intranasal humanized insulin preparation [NI], given a properly calibrated dose, were studied. The duration of administration was one week [6 rabbits SG1], 2 weeks [6 rabbits, SG2] and 4 weeks [6 rabbits, SG3]. Another three comparable groups [EG1, EG2 and EG3], each composed of three rabbits which received the enhancer alone intranasally for the same durations, respectively, were alone studied. The changes encountered in the nasal mucosa of the studied groups were compared with the control mucosa supplied by three normal rabbits. The reported changes were related to the period of exposure. On more prolonged exposure, as in SG3, the outst and ing features were abrupt surface keratinization, hypertrophy of the mucosal nerve bundles, hyperplasia of the gl and ular units, and perivascular edema. In comparison with the control nasal mucosa no changes could be detected in the corresponding EG1, EG2 and EG3. Thus, these changes were induced by the given insulin and attributed to its local antigenic and /or chemical irritation property rather than a metabolic one. Provocation of severe pain by NI was also suggested on prolonged administration


Subject(s)
Animals, Laboratory , Nasal Mucosa/drug effects , Insulin/pharmacology
16.
Indian J Chest Dis Allied Sci ; 1989 Jan-Mar; 31(1): 33-6
Article in English | IMSEAR | ID: sea-30091

ABSTRACT

Nasal mucus clearance (NMC) was studied in seventy patients with chronic maxillary sinusitis. Forty-five patients were treated with oral administration of bromhexine tablets along with oral antibiotics and nasal decongestants. Twenty-five patients received the same treatment but without bromhexine to evaluate the results. NMC was also studied in hundred healthy controls.


Subject(s)
Bromhexine/pharmacology , Chronic Disease , Female , Humans , Male , Maxillary Sinusitis/drug therapy , Mucus/metabolism , Nasal Mucosa/drug effects
17.
Alergia (Méx.) ; 34(1): 3-9, ene.-mar. 1987. tab, ilus
Article in Spanish | LILACS | ID: lil-46810

ABSTRACT

En un estudio longitudinal, prospectivo, abierto y experimental, se utilizó solución de cromoglicato de sodio al 8%, aplicándose tópicamente en pacientes de edad pediátrica, en los cuales las edades oscilaron de recién nacidos a 17 años 11/12 meses. Se confirmó la etología alérgica de la rinitis mediante la sintomatología nasal, valoración objetiva, pruebas cutáneas, estudioo de eosinofilia nasal y sanguínea. Se incluyeron 33 pacientes en un estudioo, lo cuales recibieron el medicamento tópico nasal por espacio de 8 semanas, con valoración de parámetros subjetivos y objetivos cada 2 semanas. El objetivo principal del estudioo fue demostrar la utilidad del cromoglicato de sodio tópico en la rinitis alérgica, el grado de efectividad que presenta en nuestro medio con condiciones ambientales adversas y con severidad clínica marcada, así como el grado de seguridad que se logra con la droga en el tratamiento profiláctico de este padecimiento. El resultado final nos indicó una respuesta excelente en 23 pacientes (70%), regular en 8 (24% y malo en 2 (6%). Los efectos colaterales, son mínimos, lo que indica una buena tolerancia en el tratamiento preventivo de la rinitis alérgica. Se concluye la eficiencia del cromoglicato de sodio tópico en la profilaxis de la rinitis alérgica. Los resultados en la literatura reportados en otros estudioos son discretamente inferiores a los encontrados en el presente trabajo, lo que se atribuye al uso de solusión de cromoglicato de sodio al 8%, superior en concentración a la usada en otros trabajos reportados


Subject(s)
Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Male , Female , Cromolyn Sodium/therapeutic use , Rhinitis, Allergic, Perennial/drug therapy , Administration, Topical , Mexico , Nasal Mucosa/drug effects
18.
Mansoura Medical Bulletin. 1983; 11 (4): 63-69
in English | IMEMR | ID: emr-124248

ABSTRACT

The present work was undertaken to study the effect of vincristine sulphate on the respiratory and olfactory mucosa of the nose. Eight adult rabbits were used in this work. They were divided into two equal groups and were designated group 1 and II. The animals of group I were given a daily ingection of vincristine [0.25 mg/Kg] for five days. The animals of group II were similarly injected with the dissolving medium for vincristine and were used as controls. The animals of groups I and II were sacrificed seved days after the last injection. Decalcification of the heads was done by 5% trichloroacetic acid. The regions of the nose were excised and sections were stained with hematoxylin and eosin, PAS and Glees's silver. Administration of vincristine was followed by atropy and degeneration of olfactory epithelium, thickening of basement membrane, degeneration of mucoserous glands, thickening of blood vessels and degeneration of nerve budiles and plexuses. Possible reasons for this were put forward


Subject(s)
Animals, Laboratory , Nasal Mucosa/drug effects , Nasal Mucosa/anatomy & histology , Leukemia/drug therapy
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