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Antibacterial activity of lactose-binding lectins from Bufo arenarum skin Biocell
Sánchez Riera,Alicia; Daud,Adriana; Gallo,Adriana; Genta,Susana; Aybar,Manuel; Sánchez,Sara.
Amphibians respond to microbial infection through cellular and humoral defense mechanisms such as antimicrobial protein secretion. Most humoral defense proteins are synthetized in the skin. In this study we isolated two b-galactoside-binding lectins with molecular weights of 50 and 56 KDa from the skin of Bufo arenarum. These lectins have significant hemagglutination activity against trypsinized rabbit erythrocytes, which was inhibited by galactose-containing saccharides. They are water-soluble and independent of the presence of calcium. The antimicrobial analysis for each lectin was performed. At mmolar concentration lectins show strong bacteriostatic activity against Gram negative bacteria (Escherichia coli K12 4100 and wild strains of Escherichia coli...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Skin; Lectin; Amphibian; Antibacterial activity.
Ano: 2003 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452003000100005
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Assessment of an anti-ageing structured cosmetic formulation containing goji berry BJPS
Leite,Fernanda de Godoy; Oshiro Júnior,João Augusto; Chiavacci,Leila Aparecida; Chiari-Andréo,Bruna Galdorfini.
Based on previous studies, it has been found that goji berry (GB), popularly known as a ‘miracle fruit’, has excellent antioxidant potential and can be used in the treatment of skin disorders associated with ageing. This study aimed to incorporate GB into a structured cosmetic in order to optimise its penetration. Stability studies of the formulation, determination of the antioxidant activity of the extract and of the formulation, rheological measurements, SAXS, polarised light microscopy and bioadhesion analyses were performed. The results indicated the antioxidant activity of the extract, which can be incorporated into an emulsified cosmetic formulation. The emulsified formulation containing the extract remained stable, even after being submitted to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Goji Berry; Skin; Formulation; Lycium/drug effects; Skin Aging/immunology; Cosmetics/pharmacokinetics; Antioxidants/pharmacokinetics; Cosmetic Technology.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100584
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Cambios de color en la piel del dorado (Mahi-mahi, Coryphaena hippurus) en relación a la formación de histamina OceanDocs
Wood, C.D.; Camba, N.; Grijalba, M..
En el Ecuador se utiliza el cambio de color en la piel del dorado amarillo a blanco como indicador de la calidad. Se investigó este cambio en relación a la formación de histamina bajo varias condiciones. Luego de este estudio se concluyó que, en combinación a otros parámetros como olor y textura, el color de la piel puede ser útil para distinguir pescado de buena calidad (grado A) y pescado de calidad inferior (grado B). Sin embargo existen condiciones bajo las cuales es posible tener dorado no apto para consumo humano con piel amarilla y por eso siempre es recomendable revisar todas las características sensoriales en la evaluación de calidad. Este cambio de color no hace posible la distinción entre dorado con niveles significativos de histamina. Solamente...
Tipo: Journal Contribution Palavras-chave: Histamines; Fish handling; Quality; Skin; Fish handling; Quality; Skin; Http://aims.fao.org/aos/agrovoc/c_32448; Http://aims.fao.org/aos/agrovoc/c_6400; Http://aims.fao.org/aos/agrovoc/c_7097.
Ano: 1988 URL: http://hdl.handle.net/1834/3135
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Canine skin and soft tissue tumors - Clinical and cytohistological study MV&Z
Chalita, Maria Carolina Catai; Matera, Julia Maria; Alves, Maria Teresa de Seixas; Longatto Filho, Adhemar.
Over the course of 17 months, non-aspiration fine needle (21-27G) cytology was performed on 213 dogs with 300 skin and soft tissue tumors. The smears were air dried and stained by the Rosenfeld method. There were 119 males (56%) and 94 females (44%), the majority of at least 6 years of age (75%). Mongrel dogs were over-represented (n=74), followed by Boxer (n=21), Poodle (n=18), German Shepard (n=15), Cocker Spaniel (n=12), and Doberman Pinscher (n= 11). In 40% of the cases (85 dogs, 117Iesions), histological evaluation was available to compare with the cytologic results. In this group, 77 specimens were benign (22 non-neoplastic and 55 neoplastic) and 40 malignant. Tumors were represented by 19%non-neoplastic lesions, 36% epithelial tumors, 30%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neoplasms; Skin; Citology; Histology; Dogs Neoplasia. Piel. Citología. Histología. Perros neoplasia; Pele; Citologia; Histologia; Cães.
Ano: 2002 URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3270
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Cassava biopolymer polyamide hydrogel accelerates healing of induced skin woundsin rats Arq. Bras. Med. Vet. Zootec.
Vicente,J.D.; Santo,G.R.; Palin,G.C.; Reati,L.A.; Urano,T.K.; Trindade,W.A.; Amaral,P.F.G.P.; Gerônimo,E.; Otutumi,L.K.; Lourenço,E.L.B.; Dragunski,D.C.; Germano,R.M..
ABSTRACT This study aimed to macroscopically and microscopically evaluate the healing of skin wounds induced in rats by topical application of cassava polyamide biopolymer hydrogel. In total, 32 rats were used and divided into four groups (n= 8): negative control - saline solution; positive control - use of commercial ointment; experimental group - I - ointment + cassava hydrogel; experimental group - II - cassava hydrogel. A 1cm2 wound induced on the animals dorsum was treated and evaluated. At day 21 post-operation, the animals were sacrificed by anesthetic overdose, and then 1cm2 of cicatricial skin from the wound region was collected. The material was cut to evaluate healing. In the macroscopic evaluation, complete healing was observed at the end of 21...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cassava starch; Fibroplasias; Manihot esculenta; Skin.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300889
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Comparison of the Efficacy of Honey and Animal Oil in Accelerating Healing of Full Thickness Wound of mice skin International Journal of Morphology
Ghaderi,Reza; Afshar,Mohammad; Akhbarie,Hadi; Golalipour,Mohammad Jafar.
There are some medications and procedures that can be used to accelerate the healing of skin wounds. Some studies have demonstrated improvement of burn wound healing with honey treatment. In other hand, based on traditional medicine have improved wound healing with animal oil. This study was done to compare the efficacy of animal oil and honey in accelerating healing of full thickness wound of skin in mice. In this experimental study 36 male NMRI mice were subjected to full-thickness skin wounds under general anesthesia. Animals were randomly allocated to receive either single daily applications of placebo, animal oil and honey (n=12 for each group) respectively. On 4th, 7th and 10th days, four mice from each group were sacrificed using an overdose of...
Tipo: Journal article Palavras-chave: Honey; Animal oil; Wound healing; Skin; Mice.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100027
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Composición y remoción de nutrimentos y calidad del fruto de mango (Mangifera indica L.) en diferentes ambientes. Colegio de Postgraduados
Mellado Vázquez, Adriana.
Se estudió la influencia de las condiciones de cultivo (clima, riego o temporal y tipo de suelo) en la composición nutrimental de los tejidos del fruto (epicarpio, pulpa, testa y embrión) y en la remoción de nutrimentos por tejido y por tonelada de fruto fresco de los cvs. Ataulfo, Kent, Keitt y Tommy Atkins. Asimismo, en ‘Ataulfo’ y ‘Tommy Atkins’ se estudió la relación entre el contenido nutrimental en suelo, hojas, epicarpio y pulpa (materia seca) y pulpa fresca, con la calidad postcosecha. Se trabajó con árboles altamente productivos (producción superior a los 150 kg·árbol-1), seleccionados en el 2008 de los que se cosecharon frutos en madurez fisiológica. En la materia seca de cada tejido se determinó la concentración de: N, P, K, Ca, Mg, S, Fe, Cu,...
Palavras-chave: Mangifera indica; Epicarpio; Pulpa; Testa; Embrión; Calidad postcosecha; Skin; Pulp; Seed coat; Embryo; Post-harvest quality; Doctorado; Fruticultura.
Ano: 2012 URL: http://hdl.handle.net/10521/736
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Contribuição a identificação e distribuição das subespecies de Lutreolina crassicaudata (Desmarest) (Marsupialia, Mammalia) Zoologia
Graipel,Maurício; Miller,Paul Richard M; Ximenez,Alfredo.
The subespecie Lutreolina crassicaudata paranalis Thomas, 1923 is validated through analysis of variance of 13 craniometrical measurements. There is significam separation for sex in 10 of 13 craniometrical measurements. The possibility of validation of subespecies L. c. bonaria Thomas, 1923 through coloration variation is discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Distribution; Subespecies; Craniometrical measurements analysis; Skin; Sexual dimorfism.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300026
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Control of the skin scarring response Anais da ABC (AABC)
Ferreira,Lydia M.; Gragnani,Alfredo; Furtado,Fabianne; Hochman,Bernardo.
There comes a time when the understanding of the cutaneous healing process becomes essential due to the need for a precocious tissue repair to reduce the physical, social, and psychological morbidity. Advances in the knowledge on the control of interaction among cells, matrix and growth factors will provide more information on the Regenerative Medicine, an emerging area of research in medical bioengineering. However, considering the dynamism and complexity of the cutaneous healing response, it is fundamental to understand the control mechanism exerted by the interaction and synergism of both systems, cutaneous nervous and central nervous, via hypothalamus hypophysis-adrenal axis, a relevant subject, but hardly ever explored. The present study reviews the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wound healing; Keratinocytes; Fibroblasts; Keloid; Tissue engineering; Skin; Plastic surgery.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300024
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Dermatosparaxis in two White Doper lambs in Brazil: case report Arq. Bras. Med. Vet. Zootec.
Silva,A.P.C.; Mol,J.P.S.; Carvalho Junior,C.A.; Paixão,T.A.; Santos,R.L..
Dermatosparaxis is a genetic disease that affects collagen maturation. This disease is characterized by marked impairment of the resistance of collagen fibers that leads to skin fragility, and it may affect several species. This is the first report of dermatosparaxis in sheep in Brazil. Clinically, two White Dorper lambs had multiple skin lacerations in the neck, dorsum and limbs. Transmission microscopy demonstrated irregular collagen fibers arranged in hieroglyphic shape and scanning electron microscopy demonstrated thin collagen fibrils that were not arranged in bundles as observed in the normal dermis. These findings are consistent with the diagnosis of dermatosparaxis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sheep; Dermatosparaxis; Collagen; Skin.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000300741
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Effects of Formaldehyde and Vimentin Expression in Rat Skin International Journal of Morphology
Kalkanli,Sevgi; Kalkanli,Nevin; Deveci,Engin; Dal,Tuba; Baran,Özlem.
The Wistar rats ( 9 weeks old, 180­200 g body weight) used in these trials were divided into two groups of 16 animals each (Control group and Experimental group). 100x65x100 in the sizes of the experimental group were taken into a glass vase. During the time period of 8 weeks, 5 days a week with 8 hours the inhalation of 10 ppm formaldehyde was made. Skin was removed and placed in 10% formaline. Sections were stained with Hematoxylene-Eosine, Trichrome-Masson and observed under light microscope. In this study, histopathological and immunohistochemical techniques due to the impact of the changes in formaldehyde and examined the distribution of vimentin.
Tipo: Journal article Palavras-chave: Formaldehyde; Skin; Vimentin.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300011
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Fabrication, physicochemical characterization and preliminary efficacy evaluation of a W/O/W multiple emulsion loaded with 5% green tea extract BJPS
Mahmood,Tariq; Akhtar,Naveed; Khan,Barkat Ali; Rasul,Akhtar; Khan,Haji M. Shoaib.
Complex multiple emulsions have an excellent ability to fill large volumes of functional cosmetic agents. This study was aimed to encapsulate large volume of green tea in classical multiple emulsion and to compare its stability with a multiple emulsion without green tea extract. Multiple emulsions were developed using Cetyl dimethicone copolyol as lipophilic emulsifier and classic polysorbate-80 as hydrophilic emulsifier. Multiple emulsions were evaluated for various physicochemical aspects like conductivity, pH, microscopic analysis, rheology and these characteristics were followed for a period of 30 days in different storage conditions. In vitro and in vivo skin protection tests were also performed for both kinds of multiple emulsions i.e. with active...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cosmetics; Green tea; Multiple emulsion; Rheology; Skin; Stability.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000200016
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Immunohistochemical and Histopathological Changes in the Skin of Rats after Administration of Lead Acetate International Journal of Morphology
Sula,Bilal; Deveci,Engin; Özevren,Hüseyin; Ekinci,Cenap; Elbey,Bilal.
Lead acetate is a chemical compound. Sources of human exposure to this metal include many foods, drinking water and dust. The aim of this study was to determine the immunohistochemical and histopathological changes on the face skin after lead acetate application. Wistar Albino rats (180-200 g body weight) were divided into a controlled and lead acetate-exposed group. Rats received lead acetate at 500 ppm in their drinking water for 60 days. Both groups were fed with the same standard food, but lead acetate was added to the drinking water. During the experimental period, blood samples were drawn from the abdominal aorta of the anesthetised animals. At the end of exposure, body weight and blood lead levels were measured. Sections of rat facial skin were...
Tipo: Journal article Palavras-chave: Lead acetate; Skin; Proliferating cell nuclear antigen; Vimentin.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300017
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Influence of genotype on the quality of sheep leather R. Bras. Zootec.
Jacinto,Manuel Antônio Chagas; Vargas Junior,Fernando Miranda de; Martins,Charles Ferreira; Pinto,Guilherme dos Santos; Reis,Fernando Alvarenga; Oliveira,Alexandra Rocha de.
The objective of this study was to evaluate the influence of crossings between sheep breeds on the intrinsic quality of leather. It was used the skins of 36 lambs (18 females and 18 males), resulting from crosses between ewes of a native breed from the Brazilian state of Mato Grosso do Sul and rams of the same native breed as well as the Texel and Santa Inês genetic groups. The animals were raised in confinement until slaughter weight, from 28 to 32 kg. After slaughter, samples were taken from the skins for histological analysis. The skins were tanned with chromium, retanned and greased. It was taken from the leather samples for electromicrographs and for tests for tensile and tear strength (intrinsic quality). Morphological aspects from the skin as well...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Electromicrograph; Photomicrograph; Physical-mechanical; Skin; Tanning.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800029
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Influence of He-Ne laser therapy on the dynamics of wound healing in mice treated with anti-inflammatory drugs BJMBR
Gonçalves,W.L.S.; Souza,F.M.; Conti,C.L.; Cirqueira,J.P.; Rocha,W.A.; Pires,J.G.P.; Barros,L.A.P.; Moysés,M.R..
We determined the effects of helium-neon (He-Ne) laser irradiation on wound healing dynamics in mice treated with steroidal and non-steroidal anti-inflammatory agents. Male albino mice, 28-32 g, were randomized into 6 groups of 6 animals each: control (C), He-Ne laser (L), dexamethasone (D), D + L, celecoxib (X), and X + L. D and X were injected im at doses of 5 and 22 mg/kg, respectively, 24 h before the experiment. A 1-cm long surgical wound was made with a scalpel on the abdomens of the mice. Animals from groups L, D + L and X + L were exposed to 4 J (cm²)-1 day-1 of He-Ne laser for 12 s and were sacrificed on days 1, 2, or 3 after the procedure, when skin samples were taken for histological examination. A significant increase of collagen synthesis was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Photo-stimulation; Skin; Collagen; Cyclooxygenase; Corticosteroids; Cicatrization; Anti-inflammatory drugs.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000600018
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Metastatic well differentiated squamous cell carcinoma in the prepuce of a dog: a report of clinicopathological, immunophenotypic and therapeutic approach Arq. Bras. Med. Vet. Zootec.
Auler,P.A.; Gamba,C.O.; Horta,R.S.; Lavalle,G.E.; Cassali,G.D..
This report describes a case of a well differentiated squamous cell carcinoma (SCC) of the foreskin of a dog, with metastasis in the regional lymph node. A six-year-old male intact Pit Bull dog presented a preputial ulcerated lesion with an evolution time of one year and enlarged left inguinal lymph node. Surgical resection of the preputial lesion and inguinal lymph nodes was made. The diagnosis of a well differentiated SCC was made following histopathological analysis and immunohistochemistry technique was used to confirm lymph node metastasis and to determine the histological features of the tumor. Here we demonstrated that immunohistochemistry can be an important complementary diagnostic tool to assess the prognostic features of SCC and to determine the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Metastasis; Tumor; Skin; Immunohistochemistry; Chemotherapy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501317
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Moderate intensity physical training accelerates healing of full-thickness wounds in mice BJMBR
Zogaib,F.G.; Monte-Alto-Costa,A..
Physical training influences the cells and mediators involved in skin wound healing. The objective of this study was to determine the changes induced by different intensities of physical training in mouse skin wound healing. Ninety male C57BL6 mice (8 weeks old, 20-25 g) were randomized into three physical training groups: moderate (70% VO2max), high (80% VO2max), and strenuous intensity (90% VO2max). Animals trained on a motorized treadmill for 8 weeks (Elesion: physical training until the day of excisional lesion, N = 10) or 10 weeks (Eeuthan: physical training for 2 additional weeks after excisional lesion until euthanasia, N = 10), five times/week, for 45 min. Control groups (CG) trained on the treadmill three times/week only for 5 min (N = 10). In the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Physical training; Wound healing; Myofibroblast; Skin.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001000008
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No evidence for mutations in exons 1, 8 and 18 of the patched gene in sporadic skin lesions of Brazilian patients BJMBR
Granja,F.; Santarosa,P.L.; Leite,J.L.A.A.P.; Ward,L.S..
There is strong evidence that the patched (PTCH) gene is a gene for susceptibility to the nevoid basal cell carcinoma syndrome. PTCH has also been shown to mutate in both familial and sporadic basal cell carcinomas. However, mutations of the gene seem to be rare in squamous cell carcinomas. In order to characterize the role of the gene in the broader spectrum of sporadic skin malignant and pre-malignant lesions, we performed a polymerase chain reaction-single-strand conformation polymorphism (PCR-SSCP) analysis of genomic DNA extracted from 105 adult patients (46 females and 59 males). There were 66 patients with basal cell carcinomas, 30 with squamous cell carcinomas, 2 with malignant melanomas and 7 patients with precancerous lesions. Two tissue samples...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Skin; Cancer; PTCH; Mutation.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000400006
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Observations on the ultrastructure of the proboscis epithelia in <i>Polycystis naegelii</i> Kölliker (Turbellaria Eukalyptorhynchia) and some associated structures OMA
Schockaert, E.R.; Bedini, C..
The epithelium of the anterior tip of the bodywall, of the proboscis cavity and of the proboscis cone in <i>Polycystis naegelii</i> has been studied with the electron microscope. These epithelia are formed by six syncytial belts separated from each other by cellular limits: one belt belongs to the epidermis, three line the cavity and two cover the cone. The posterior belt of the cavity and those of the cone are of the insunk type bringing about a peculiar relationship between the latter two. Moreover, they are associated with muscular elements under the basal cone belt but above its basement membrane. Nine different kinds of glands have been observed erupting at the surface of the epithelia in the studied area, while six different sorts of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Skin; Ultrastructure; Polycystis naegelii.
Ano: 1978 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6984
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PROGRESSIVE EFFECTS OF DIABETES MELLITUS ON THE SKIN EPITHELIUM OF THE RA International Journal of Morphology
Benetti Tanga,Marcelo; Buttros,Kemli Raquel; Nakao,Cristiano; Chinali Komesu,Marilena.
Skin serves as interface between inner aand outer environment, and acts a a mechanical barrier. Changes in its characteristics may lead to a higher pathogenicity, less defense capacity, or both. Diabetes mellitus is a heterogeneous group of chronic hyperglycemic disorders, considered a syndrome rather than a simple disease. Complications by diabetes are mostly associated with the chronicity of the disease and very little information exists about its early pathological processes. Animal models are considered very useful for the study of early diabetes. Wistar rats with lloxan induccced diabetes were used in a way to study the progresive effects of diabetes mellitus on the skin epithelium. Five animals were sacrificed at 7 days (Phase I) and five others at...
Tipo: Journal article Palavras-chave: Diabetes mellitus; Hyperglycemia; Skin; Rat.
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200008
Registros recuperados: 26
Primeira ... 12 ... Última
 

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