Browsing by Author "Pereira, T"
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- Bacterial cellulose membranes as drug delivery systems: An in vivo skin compatibility studyPublication . Almeida, IF; Pereira, T; Silva, NH; Gomes, FP; Silvestre, AJ; Freire, CS; Sousa-Lobo, JM; Costa, PCBacterial cellulose (BC) is a highly pure form of cellulose, produced in the form of a swollen membrane by several bacteria that demonstrated to be able to modulate the skin release of model drugs. In the present study, the skin irritation potential of BC was evaluated in human subjects. BC membranes with and without glycerin (acting as plasticizer) were tested. No significant differences were observed for transepidermal water loss (TEWL) measurements in comparison with negative control, 2 and 24h after patch removal, which is an indicator of an absence of barrier disruption. Similar results were found for erythema. Clinical scores were zero at both times for all volunteers, with the exception of five volunteers that exhibited weak reactions. BC with glycerin provided a skin moisturizing effect statistically higher than the negative control (p=0.044), which was not observed for BC alone. The good skin tolerance found after a single application under occlusion reinforces the putative interest of BC membranes as supports for drug topical delivery. Besides modifying the mechanical properties, the inclusion of glycerin results in a skin moisturizing effect which could be clinically relevant for the treatment for skin diseases characterized by dryness, such as psoriasis and atopic dermatitis.
- Coma BlistersPublication . Rocha, J; Pereira, T; Ventura, F; Pardal, F; Brito, CComa blisters are lesions that occur in the setting of a variety of neurological diseases. Although most commonly associated with barbiturate overdose, they can be seen in the setting of coma due to other etiologies. Blisters develop 48-72 h after the onset of unconsciousness. We report the case of a 29-year-old man who presented to the emergency department with confusion and progressive loss of consciousness. He had high serum glucose, abnormal hepatic and kidney function tests and a normal toxicological screening. 24 h after admission he was comatose and was started on antibiotics for presumed bacterial meningoencephalitis. Two days after the onset of coma, multiple tense hemorrhagic blisters appeared on the patient's extremities. Skin biopsy revealed an intraepidermal blister with variable degrees of epidermal necrosis. Five days later the patient was fully recovered with no neurological sequelae. No topical treatment was necessary, with complete resolution of the skin lesions two weeks later.
- Complete Distal Rupture of the Rectus Femoris in an Elite Football Player: A Non-operative TreatmentPublication . Fernandes, A; Pinto, J; Cunha, P; Duarte, C; Estaca, A; Pereira, T; Bettencourt, M; Candelária, I; E Silva, MR
- Contact dermatitis due to Centella asiaticaPublication . Gomes, J; Pereira, T; Vilarinho, C; Duarte, ML; Brito, C
- Cutaneous polyarteritis nodosa in a child following hepatitis B vaccinationPublication . Ventura, F; Antunes, H; Brito, C; Pardal, F; Pereira, T; Vieira, AP
- De encefalopatia e orelhas duras ao síndrome de Sheehan: caso clínicoPublication . Machado, A; Ferreira, C; Lopes, M; Pereira, T; Pardal, F
- Indeterminate cell histiocytosis in association with acute myeloid leukemiaPublication . Ventura, F; Pereira, T; Duarte, ML; Marques, H; Pardal, F; Brito, CIndeterminate cell histiocytosis (ICH) is a rare proliferative disorder, in which the predominant cells share morphologic and immunophenotypic features from both Langerhans and non-Langerhans cell histiocytosis. We describe a 62-year-old man presenting a 2-month history of firm nodular lesions on the upper lip. Histopathology, immunohistochemical, and ultrastructural analysis showed typical findings of ICH. The patient was treated with thalidomide and almost complete regression of the lesions was reached within 7 months. Nevertheless, one month after remission, he developed an acute myeloid leukemia of the subtype monocytic leukemia (M5). The patient's condition rapidly worsened and he died due to a respiratory failure four weeks later. We present this case because apart of being rare it joins the effectiveness of thalidomide and the association with an acute monocytic leukemia. A review of the literature is made.
- Occupational protein contact dermatitis: two case reportsPublication . Rocha, J; Pereira, T; Sousa-Basto, A; Brito, CProtein contact dermatitis (PCD) is a contact dermatitis caused by high-molecular-weight proteins. This entity has been reported with increasing frequency, most commonly as occupational hand dermatitis in food handlers. Clinically, it is characterized by a chronic and recurrent dermatitis with erythema, scaling, and fissures with acute exacerbations occurring a few minutes after contact with offending allergen. We report two cases in confectioners who presented with chronic hand dermatitis.
- Primary cutaneous actinomycosis caused by Actinomyces meyeri as first manifestation of HIV infectionPublication . Gomes, J; Pereira, T; Carvalho, A; Brito, CPrimary cutaneous actinomycosis is very uncommon. We report a patient with cutaneous actinomycosis with multiple lesions without any detectable extra-cutaneous lesions. In our patient the actinomycosis was the presenting manifestation of HIV infection.
- Return to Play After the Diagnosis of Reactive Arthritis in a Professional Football PlayerPublication . Fernandes, A; Cunha, P; Pinto, J; Duarte, C; Estaca, A; Pereira, T; Bettencourt, M; e Silva, MR; Fernandes, SIn professional football, most of the injuries are traumatic; however, these athletes may suffer from rheumatologic diseases, that may present as sports-related injuries. Reactive arthritis (ReA) is classified as a sub-group of the spondyloarthritis family and is relatively rare. In this article, we highlight the successful return to play (RTP) process after the ReA diagnosis in an elite football player in the Portuguese first league. The athlete was able to RTP four months and one week after the diagnosis, had no ReA recurrence nor re-injury >8 months after RTP, and is playing at an elite level.