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Pinheiro WO, Costa do Santos MS, Farias GR, Fascineli ML, Ramos KLV, Duarte ECB, Damasceno EAM, da Silva JR, Joanitti GA, de Azevedo RB, Sousa MH, Lacava ZGM, Mosiniewicz-Szablewska E, Suchocki P, Morais PC, de Andrade LR. Combination of selol nanocapsules and magnetic hyperthermia hinders breast tumor growth in aged mice after a short-time treatment. Nanotechnology 2022; 33:205101. [PMID: 35100566 DOI: 10.1088/1361-6528/ac504c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Short time treatment with reduced dosages of selol-loaded PLGA nanocapsules (NcSel) combined with magnetic hyperthermia (MHT) is evaluated in aged Erhlich tumor-bearing mice. Clinical, hematological, biochemical, genotoxic and histopathological parameters are assessed during 7 d treatment with NcSel and MHT, separately or combined. The time evolution of the tumor volume is successfully modeled using the logistic mathematical model. The combined therapy comprising NcSel and MHT is able to hinder primary tumor growth and a case of complete tumor remission is recorded. Moreover, no metastasis was diagnosed and the adverse effects are negligible. NcSel plus MHT may represent an effective and safe alternative to cancer control in aged patients. Future clinical trials are encouraged.
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Affiliation(s)
- Willie Oliveira Pinheiro
- University of Brasilia, Post-Graduation Program in Sciences and Technologies in Health, Faculty of Ceilandia, 72220-275, Brasilia, DF, Brazil
- University of Brasilia, Faculty of Ceilandia, Green Nanotechnology Group, 72220-900 Brasilia, DF, Brazil
| | | | - Gabriel Ribeiro Farias
- University of Brasilia, Laboratory of Immunology and Inflammation, Department of Cell Biology, 70910-900 Brasilia, DF, Brazil
| | - Maria Luiza Fascineli
- University of Brasilia, Institute of Biological Sciences, Department of Genetics and Morphology, 70910-900 Brasilia, DF, Brazil
- Department of Morphology (DMORF), Health Science Center, Federal University of Paraíba, 58051-900, João Pessoa, Brazil
| | - Khellida Loiane Vieira Ramos
- University of Brasilia, Institute of Biological Sciences, Department of Genetics and Morphology, 70910-900 Brasilia, DF, Brazil
| | | | | | - Jaqueline Rodrigues da Silva
- University of Brasilia, Institute of Biological Sciences, Department of Genetics and Morphology, 70910-900 Brasilia, DF, Brazil
| | - Graziella Anselmo Joanitti
- University of Brasilia, Laboratory of Bioactive Compounds and Nanobiotechnology (LBCNano), Faculty of Ceilandia, 72220-275 Brasilia-DF, Brazil
| | - Ricardo Bentes de Azevedo
- University of Brasilia, Institute of Biological Sciences, Department of Genetics and Morphology, 70910-900 Brasilia, DF, Brazil
| | - Marcelo Henrique Sousa
- University of Brasilia, Faculty of Ceilandia, Green Nanotechnology Group, 72220-900 Brasilia, DF, Brazil
| | - Zulmira Guerrero Marques Lacava
- University of Brasilia, Institute of Biological Sciences, Department of Genetics and Morphology, 70910-900 Brasilia, DF, Brazil
| | | | - Piotr Suchocki
- Department of Bioanalysis and Drug Analysis, Medical University of Warsaw, Warsaw, Poland
| | - Paulo Cesar Morais
- University of Brasília, Institute of Physics, Brasília DF 70910-900, Brazil
- Catholic University of Brasília, Genomic Sciences and Biotechnology, Brasília DF 70790-160, Brazil
| | - Laise Rodrigues de Andrade
- University of Brasilia, Institute of Biological Sciences, Department of Genetics and Morphology, 70910-900 Brasilia, DF, Brazil
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Santos VM, Tubino PVA, Santos SC, Medeiros DBS, Damasceno EAM. A 10-year unsuspected lumbar schwannoma: a case report. W INDIAN MED J 2011; 60:232-234. [PMID: 21942136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
One case of unsuspected schwannoma is reported in a 69-year old man with chronic lumbosacral pain. The tumour had been mistaken for a lumbar lipoma for a decade. The definitive diagnosis was established after surgery based on the characteristic histopathological findings. The purpose of this report is to alert primary care physicians to peripheral sheath nerve tumours, in addition to highlight the role of pain and image features in the suspicion of tumours with long-term evolution.
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Affiliation(s)
- V M Santos
- Catholic University Medical Course, Brasília-DF, Brazil.
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dos Santos VM, Villaça RB, Almeida ACA, Oliveira ERNC, Nogueira Junior PRM, Damasceno EAM. Rupture of hepatic artery aneurysm associated with ischemic hepatitis. An Sist Sanit Navar 2010; 33:221-5. [PMID: 20927149 DOI: 10.4321/s1137-66272010000300011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hepatic artery aneurysms are scarcely reported, mainly because of non-specific symptoms. More often, they are incidental findings during imaging studies to investigate other acute or chronic abdominal conditions. These aneurysms are usually detected in the sixth decade of life, predominantly among males. We report the case of a 69 year-old female with an unsuspected huge hepatic artery aneurysm associated with ischemic hepatitis. Suspicion of aneurysm arose during imaging studies to clarify the origin of jaundice and abdominal pain. After establishment of the diagnosis, but before open surgery, there was a spontaneous rupture of the aneurysm, which caused hemoperitoneum and death. The necropsy study confirmed ischemic hepatitis. Hepatic artery aneurysms are second among the visceral aneurysms, and may cause abdominal pain, jaundice, and hemorrhagic events. One should suspect abdominal aneurysms in elderly patients with unclear abdominal pain, and this hypothesis should be ruled out by imaging studies.
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Santos VMD, Rocha de Sá DA, Turra TZ, Ferreira Borges NM, Nascimento UM, Damasceno EAM. Hantavirus pulmonary syndrome in Brasilia periphery: a diagnostic challenge. J Infect Dev Ctries 2009; 3:639-43. [PMID: 19801809 DOI: 10.3855/jidc.558] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2009] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Hantavirus pulmonary syndrome (HPS) is an emerging rodent-borne disease in the American continent, characterized by acute respiratory distress and a high case-fatality ratio. The present work describes a case of HPS, with favorable outcome, whose initial features were mistaken for leptospirosis or other less severe acute infections. METHODOLOGY The case of a 32-year-old male with an uneventful course of HPS is reported. He was inadvertently infected at work by exposure to a rodent-contaminated environment in Brasília, Federal District vicinity, during May 2008. RESULTS AND CONCLUSIONS Fever, headache and myalgia after exposure to a rodent-contaminated environment raised clinical suspicion. Non-cardiac pulmonary edema, hydrothorax, neutrophilia with band forms 26%, high hematocrit, thrombocytopenia, and elevated liver enzymes were observed. Leptospirosis and dengue were the main differential diagnoses because both pathogens are endemic in the area. Hantavirus IgM antibody-capture ELISA was positive, while tests for dengue, leptospirosis and yellow fever were negative. The prognosis for HPS is ominous and misdiagnoses may increase mortality. Better chances of survival depend on prompt intensive care support. Reports of moderate or less typical cases can raise the suspicion index among primary care and hospital-based physicians about this uncommon but severe condition that often affects previously healthy young individuals from developing countries, and subjects who interact with rodent-infested environments in North America. High awareness of HPS allowed successful management of the patient, even before establishing the diagnosis, by serological tests at the reference laboratory of the Ministry of Health. Clinical suspicion favored warning local health authorities about a new case of HPS.
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Affiliation(s)
- Vitorino Modesto dos Santos
- Department of Internal Medicine from the Armed Forces Hospital (HFA), Estrada do Contorno do Bosque s/n, Brasilia-DF, Brazil.
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