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1.
J Oleo Sci ; 67(12): 1585-1595, 2018 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-30429444

RESUMO

The Salisapilia species are estuarine oomycetes of the mangrove and saltmarsh ecosystem. To date, reports on the secondary metabolites and biological activities of these microorganisms are wanting. In this study, secondary metabolites in broth ethyl acetate extracts (BEAE) and mycelial ethyl acetate extracts (MEAE) of Salisapilia tartarea S1YP1 isolated from yellow senescent mangrove leaves were screened by Thin Layer Chromatography (TLC). Extracts were assayed for antioxidant, antibacterial, α- glucosidase inhibition, and cytotoxic activity. The TLC detected anthraquinones, anthrones, flavonoids, phenols, and triterpenes in both BEAE and MEAE. Coumarins were detected in BEAE but not in MEAE. Quantifying the total phenolics and total flavonoids content of the extracts in terms of gallic acid and quercetin equivalents, respectively shows that BEAE has higher total phenolic and flavonoid contents than MEAE. BEAE exhibited significant antioxidant activities through measurements of free radical scavenging activity against DPPH, hydroxyl, nitric oxide, and superoxide anion radicals as well as the ability to chelate Fe2+ metal ion. BEAE significantly inhibited in a dose-dependent manner α-glucosidase activity and selectively inhibited HepG2 cell proliferation. Antioxidant, α- glucosidase inhibitory, and cytotoxic activities have not been observed for MEAE. Both BEAE and MEAE do not have antibacterial activity.


Assuntos
Avicennia/microbiologia , Produtos Biológicos/farmacologia , Oomicetos/química , Antibacterianos/química , Antibacterianos/isolamento & purificação , Antibacterianos/farmacologia , Antibacterianos/toxicidade , Antineoplásicos/química , Antineoplásicos/isolamento & purificação , Antineoplásicos/farmacologia , Antineoplásicos/toxicidade , Produtos Biológicos/química , Produtos Biológicos/isolamento & purificação , Produtos Biológicos/toxicidade , Cromatografia em Camada Fina/métodos , Sequestradores de Radicais Livres/química , Sequestradores de Radicais Livres/isolamento & purificação , Sequestradores de Radicais Livres/farmacologia , Sequestradores de Radicais Livres/toxicidade , Inibidores de Glicosídeo Hidrolases/química , Inibidores de Glicosídeo Hidrolases/isolamento & purificação , Inibidores de Glicosídeo Hidrolases/farmacologia , Inibidores de Glicosídeo Hidrolases/toxicidade , Células Hep G2 , Humanos , Oomicetos/isolamento & purificação , Folhas de Planta/microbiologia
2.
J Emerg Med ; 47(3): e63-8, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24915743

RESUMO

BACKGROUND: Acute spontaneous subdural hematomas (ASSDH) occur by a variety of pathological processes and are less common than trauma-related acute subdural hematomas (SDH). Both types are usually seen in the elderly, and only 22 cases of ASSDH in patients aged < 40 years have been reported in the medical literature. OBJECTIVES: We report a rare case of ASSDH in a middle-aged male with no previous history of head trauma. A literature review comparing the clinical presentations, etiologies, incidence, mortality rates, and prognostic factors of ASSDH in various age groups is discussed. CASE REPORT: A 37-year-old man presented to the Emergency Department with headaches, myalgias, and vomiting. Noncontrast computed tomography revealed a unilateral ASSDH with 9 mm of midline shift, despite a normal neurological examination. Upon admission, the patient developed an abducens palsy suggesting increased intracranial pressure and underwent an urgent hemicraniectomy. Pathological sampling revealed large atypical cells indicative of a hematopoietic neoplasm, but various advanced imaging modalities failed to identify signs of cerebral tumor, vascular malformation, or arterial extravasation. CONCLUSION: Given the rarity of SDH in nonelderly patients, this case suggests a broader differential diagnosis for nontraumatic headaches to include arterial and even neoplastic origins. Our literature review confirms the paucity of reported incidences of ASSDH, yet reminds medical providers to closely monitor for developing neurological symptoms and initiate prompt medical intervention when necessary.


Assuntos
Hematoma Subdural Agudo/diagnóstico , Adulto , Diagnóstico Diferencial , Cefaleia/diagnóstico , Humanos , Incidência , Masculino , Prognóstico
3.
Pneumonol Alergol Pol ; 68(11-12): 557-65, 2000.
Artigo em Polonês | MEDLINE | ID: mdl-11320566

RESUMO

The aim of this study was to assess how the extent of the number and percentage of lymphocytes in BALF and also the CD4 to CD8 ratio can help to predict the short outcome in sarcoidosis. Material consisted of 74 patients, 39 men and 35 women in the age from 23 to 58 years. 11 patients had chest lesions in stage I, 43 in stage II and 20 in stage III. Clinical markers of activity (fever, erythema nodosum) were present in 22 cases. Extrathoracic lesion were present in 31 and abnormal pulmonary function in 30. In all patients BAL was done before treatment and lymphocyte count, percentage and CD4/CD8 ratio was calculated. 50 patients were treated with corticosteroids and 24 were observed without treatment. After 6-12 month of observation regression of sarcoid lesions was observed in 46 of 50 patients treated with corticosteroids and in 17 out of 24 patients observed without treatment. There were no differences in lymphocyte count and percentage in BALF and in the short term outcome between group treated with corticosteroids and without treatment. The patients in whom regression of lesions was observed have however significantly higher CD4/CD8 ratio than others.


Assuntos
Líquido da Lavagem Broncoalveolar/imunologia , Relação CD4-CD8 , Sarcoidose/tratamento farmacológico , Sarcoidose/imunologia , Adulto , Feminino , Humanos , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Prednisona/uso terapêutico , Indução de Remissão , Testes de Função Respiratória , Sarcoidose/diagnóstico , Resultado do Tratamento
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