NEUSA YURIKO SAKAI VALENTE
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/53 - Laboratório de Micologia, Hospital das Clínicas, Faculdade de Medicina
LIM/53 - Laboratório de Micologia, Hospital das Clínicas, Faculdade de Medicina
6 resultados
Resultados de Busca
Agora exibindo 1 - 6 de 6
- Histopathological and clinical evaluation of chronic spontaneous urticaria patients with neutrophilic and non-neutrophilic cutaneous infiltrate(2018) MARTINS, Cintia Freitas; MORAIS, Karina Lopes; FIGUEROA, Pamela; DIAS, Natasha Favoretto; VALENTE, Neusa Sakai; MARUTA, Celina Wakisaba; CRIADO, Paulo RicardoBackground: Chronic urticaria has an expressive prevalence in general population, especially in adults, and is defined by the presence of intermittent hives for six weeks or longer. Our study aims to characterize the histological patterns of chronic spontaneous urticaria, based on the inflammatory cell infiltrate, and correlate them to laboratory exams. Methods: It was performed a retrospective analysis of laboratory, histopathology and direct immunofluorescence data of 93 patients with chronic urticaria. For histopathological analysis, cell count was performed in four fields at high magnification (x400) for each specimen. The resulting cell count medians were submitted to statistical analysis and, then, were correlated to laboratorial findings. Results: We found a female predominance (76.34%) of chronic urticaria cases, and an average age of 42.5 years (SD +/- 15). Two histological groups were distinctive: 1) chronic urticaria with predominance of neutrophils or eosinophils - N (%) = 39 (42.4%) - and 2) chronic urticaria with predominance of lymphocytes - N (%) = 53 (57.6%). There was not significant correlation between histological groups and laboratorial tests. Moreover, direct immunofluorescence was positive in 21 (33,87%) from 62 patients. Conclusions: There is not enough scientific evidence to support neutrophilic urticaria as a solid, separate entity.
- Case Report: A Patient with Erythema Nodosus Leprosum and Chagas Cardiopathy: Challenges in Patient Management and Review of the Literature(2011) TRINDADE, Maria Angela B.; CARVALHO, Noemia B.; BELFORT, Elaini C.; PAGLIARI, Carla; GAKIYA, Erika; SAKAI-VALENTE, Neusa Y.; BENARD, Gil; SHIKANAI-YASUDA, Maria A.We report a patient with severe multi-bacillary leprosy complicated by recurrent episodes of erythema nodosum necrotisans that required thalidomide and/or corticosteroids during follow-up. Although the patient was from an area to which Chagas disease is endemic, this diagnosis was initially missed and was only investigated when heart failure developed in the patient. The difficulties of managing erythema nodosum necrotisans and heart failure concomitantly and those involved in excluding the diagnosis of acute myocarditis caused by reactivation of Chagas disease secondary to the immunosuppressive regimen are discussed. Other potential causes for the heart failure and possible interactions between the two diseases and their treatments are discussed. We also reviewed the literature for the association between leprosy and Chagas disease, both of which are highly endemic in Brazil. This case emphasizes the importance of searching for subclinical co-infections in leprosy patients because reactions frequently develop during specific. treatment in these patients, and these reactions require prolonged therapy with immunosuppressive drugs.
- Poikilodermatous Mycosis Fungoides: Comparative Study of Clinical, Histopathological and Immunohistochemical Features(2020) BERG, Roberta Vasconcelos; VALENTE, Neusa Yuriko Sakai; FANELLI, Camilla; WU, Isabelle; PEREIRA, Juliana; ZATZ, Roberto; SANCHES, Jose AntonioBackground: Poikilodermatous mycosis fungoides (pMF) is characterized by poikiloderma areas, typically involving the major flexural areas and trunk. Its presentation can be generalized or admixed with other forms of MF. Previous studies fail to correlate the clinical presentation with prognosis and laboratory findings. Some reports show pityriasis lichenoides chronica (PLC) preceding the poikiloderma. Objectives: Correlate prognostic, histopathological and molecular aspects of pMF with its clinical presentation. Methods: Retrospective analysis of 14 cases of generalized pMF (GpMF), 22 of localized pMF (LpMF) and 17 of pMF admixed with other forms of MF (mix-pMF). Results: Female predominance and lower age at diagnosis was found in all groups compared to classic MF, a high prevalence of PLC-like lesions in the GpMF group and a high rate of hypopigmented lesions in the mix-pMF group. There were 2 deaths within the GpMF group. Histology was similar to previously reported findings, as was the prevalence of CD4 T-cell infiltrate, compared to CD8. The T-cell clonality positivity was lower in the GpMF group, compared to other groups (27% GpMF, 80% LpMF and 100% mix-pMF). Discussion: This is the first article to categorize the different forms of pMF and correlate them with clinical and laboratory findings. The dermatological presentation differs among the groups. There was a high frequency of PLC-like lesions within the GpMF group and of hypopigmented lesions in mix-pMF. The histological and immunohistochemical findings were similar to those previously reported. Aggressive treatments are not recommended due to the good prognosis of all pMF forms. The low positivity of T-cell clonality in the GpMF group should be investigated.
- Epidermolysis Bullosa Pruriginosa Associated with Folliculitis Decalvans: Case Report and Review of the Literature(2018) RIVITTI-MACHADO, Maria Cecilia; TOMA, Juliana T.; POMPEU, Vivianne M. A.; VALENTE, Neusa Y. S.; DOCHE, Isabella
- Livedoid vasculopathy and high levels of lipoprotein (a): response to danazol(2015) CRIADO, Paulo Ricardo; I, Danielle Priscilia de Souza Espinel; VALENTE, Neusa Yuriko Sakai; ALAVI, Afsaneh; KIRSNER, Robert S.Livedoid vasculopathy (LV) is a thrombo occlusive disorder presenting with recurrent painful ulcers of lower extremities. Association of LV with increased level of lipoprotein (a) (LP(a)), a risk factor for cardiovascular disease, has been reported. Danazol has been used with success in the management of LV, but none of the previous studies looked at the correlation between response to the treatment and level of LP(a). The aim of this study was to demonstrate the efficacy of low-dose danazol in the treatment of LV and its effects on LP(a). We present four cases with LV who were successfully treated with low-dose danazol, assessing the clinical characteristics and laboratory tests including the level of LP(a). The average age of the patients was 45 years and the mean duration of the disease was 19 years. The treatment regime of danazol 200mg daily led to complete healing of ulcers and reduction in pain and a 70% (ranging from 52 to 87%) reduction in the level of LP(a). The limitation of this study is small sample size. In our patients with LV, low-dose danazol led to clinical improvement along with significant reduction in the level of LP(a).
- Case Report: Leprosy and Tuberculosis Co-Infection: Clinical and Immunological Report of Two Cases and Review of the Literature(2013) TRINDADE, Maria Angela B.; MIYAMOTO, Denise; BENARD, Gil; SAKAI-VALENTE, Neusa Y.; VASCONCELOS, Dewton de M.; NAAFS, BernardA review of the records of patients seen between 2004 and 2011 at the Dermatology Clinic of the Sao Paulo University Medical School showed that only two leprosy patients had been co-infected with tuberculosis (TB). One patient showed a type 1 leprosy reaction during the first 3 months of treatment of pleural TB and in the other patient, pulmonary TB was diagnosed during the first 3 months of treatment of a type 1 leprosy reaction. Both patients showed normal cellular immune response tests, including those of the interferon-gamma (IFN-gamma)/interleukin 12 (IL-12) axis. Although both mycobacterial infections are endemic in developing countries like Brazil, the co-infection has hardly been reported in the last decade. There is no suitable explanation for this observation. The reports on the interaction between the two mycobacteria are highly speculative: some studies suggest that leprosy, especially the anergic form, would predispose to TB, whereas other investigations suggested an antagonism between the two diseases.