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Use of ß-glucanases and ß-1,4-xylanases to supplement diets containing alfalfa ...

Mourão, J.L.; Ponte, P.I.P; Prates, J.A.M.; Centeno, M.S.J.; Ferreira, L.M.A.; Chaveiro-Soares, M.A.; Fontes, C.M.G.

It is well established that the use of alfalfa in diets for monogastric animals is limited by its high fiber content. However, alfalfa is a natural source of xanthophylls and gives poultry products a desirably yellow color. In addition, alfalfa saponins may contribute to reduce the levels of cholesterol in the meat and egg yolk. We have investigated the potential utilization of β-glucanases and β-1,4-xylanases ...

Data: 2020   |   Origem: Repositório da UTAD

Low Dose Thalidomide for Treatment of Resistant Discoid Lupus Erythematosus. A ...

Campos, S; Ponte, P; Lestre, S

Discoid lupus erythematosus (DLE) is a chronic, indolent, disfiguring disease that is characterized by scaly, erythematous, disk-shaped patches and plaques followed by atrophy, scarring and depigmentation. In a small number of patients, it is refractory to standard therapies. In several studies, thalidomide has been reported to be an effective treatment in those cases. The most fearful side effects are teratoge...


Birt-Hogg-Dubé Syndrome

Lencastre, A; Ponte, P; Apetato, M; Nunes, L; Lestre, S

A 45-year-old woman with a history of renal carcinoma was observed for facial, cervical and truncal flesh-colored papules. Relatives had similar skin findings and a brother had repeated episodes of pneumothorax. The computerized tomography scan revealed multiple cysts on both lungs. A skin biopsy revealed a perifollicular fibroma. The clinical diagnosis of Birt-Hogg-Dubé syndrome (BHDS) was corroborated by iden...


Intraepidermal Epidermotropic Metastatic Melanoma: a Clinical and Histopatholog...

Lestre, S; João, A; Ponte, P; Peixoto, A; Vieira, J; Teixeira, MR; Fidalgo, A

The distinction between primary melanoma and melanoma metastatic to the skin has major prognostic implications. We report a case of a 67-year-old male with a diagnosis of a superficial spreading melanoma (stage IB) rendered 6 years earlier who presented clinically with an atypical nevus on his left thigh. Histopathological examination showed an intraepidermal melanocytic proliferation that was interpreted as me...


Borderline CD30+ Cutaneous Lymphoproliferative Disorder: Report of a Case with ...

Ponte, P; Serrão, V; Viana, I; Vale, E; João, A; Cerroni, L

CD30+ cutaneous lymphoproliferative disorders (CLPDs) are usually characterized by a benign clinical course. The prognostic value of cytotoxic markers in these lymphomas has not been evaluated in large series. We describe a case of borderline CD30+ CLPD with cytotoxic phenotype, presenting in a 22-year-old male patient as an ulcer on the forearm. He reported having had similar ulcers on the buttock and thigh th...



Effect of dietary dehydrated pasture and citrus pulp on the performance and mea...

Mourão, José Luís; Pinheiro, Victor; Prates, J.A; Bessa, R.J.; Ferreira, L.M.; Fontes, Carlos; Ponte, P.I.,

Some feedstuffs containing significant levels of fiber may be a good source of bioactive compounds that may contribute to improving broiler meat quality. However, high fiber level can have a negative impact on broiler performance. A study was undertaken to investigate the impact of incorporating citrus pulp (5 or 10%) or dehydrated pasture (5 or 10%) on the performance, carcass yield, and characteristics of bro...

Data: 2008   |   Origem: Repositório da UTAD

Pasture intake improves the performance and meat sensory attributes of free-ran...

Ponte, P.I.P; Rosado, C.M.C; Crespo, J.P.; Crespo, D.G; Mourão, José Luís; Chaveiro-Soares, M.A.; Mendes, I.L.T.; Gama, L.T.; Prates, J.A.M.

Free-range chickens are assumed to consume low to moderate levels of pasture, although the effects of forage intake in broiler performance and poultry meat quality remain to be established. In addition, despite cellulases and hemicellulases being widely used as feed supplements to improve the nutritive value of cereal-based diets for fast-growing broilers, the potential interest of these biocatalysts in the pro...

Data: 2008   |   Origem: Repositório da UTAD

Role of a family 11 carbohydrate-binding module in the function of a recombinan...

Lordelo, M.M.; Guerreiro, C.I.P.D.; Ribeiro, T.; Ponte, P.I.P.; Falcão, L.; Freire, J.P.B.; Ferreira, L.M.A.; Prates, J.A.M.; Fontes, C.M.G.A.

Cellulases and xylanases display a modular architecture that comprises a catalytic module linked to one or more non-catalytic carbohydrate-binding modules (CBMs). CBMs have been classified into 52 different families, based on primary structure similarity. These non-catalytic modules mediate a prolonged and intimate contact of the enzyme with the target substrate eliciting efficient hydrolysis of the target poly...

Data: 2008   |   Origem: Repositório da UTL

Crop -glucanase activity limits the effectiveness of a recombinant cellulase us...

Lordelo, M.M.; Ponte, P.I.P.; Guerreiro, C.I.P.D.; Soares, M.C.; Mourão, J.L.; Crespo, J.P.; Crespo, D.G.; Prates, J.A.M.; Ferreira, L.M.A.

1. The supplementation of diets rich in soluble polysaccharides with microbial cellulases and hemicellulases decreases digesta viscosity and promotes broiler performance. 2. In contrast, recent experiments suggest that polysaccharidases are ineffective for improving the nutritive value of pasture biomass used by free-range broilers. However, the feasibility of using cellulases and hemicellulases to improve the ...

Data: 2008   |   Origem: Repositório da UTL

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    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia