Abstract This study aimed to analyze the physical features and effect of hydroxyapatite (HAp) and Niobium/HAp CaNb2O6/Ca3(PO4)2 composite on critical size defect in rat calvaria. Biomaterials were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), Particle size distribution (PSD) and Scanning Electron Microscopy (SEM). Critical size (8 mm) calvarial defects were created in Wistar rats (n = 24) distributed in three groups (90 days): Control group (CG): critical defect no treatment; HAp group: Hydroxyapatite; CNb/CPO group: CaNb2O6/Ca3(PO4)2 composite. After 90 days, calvaria samples were subjected to histological, and immunohistochemical reactions for osteopontin and osteocalcin, and Micro-CT analyses. XRD analysis confirmed the formation of a crystalline structure of CNb/CPO. XRF measurements confirmed the presence of Nb added in the sample CNb/CPO. Fracture toughness from CNb/CPO composite was 0.82 MPa.m1/2. Micro-CT showed increased trabecular number (p˂0.001), decreased porosities (%) (p˂0.001) and decreased trabecular separation (mm) (p˂0.001) in the CNb/CPO compared to CG group. In CNb/CPO group showed presence of new bone in which connective tissue differentiates to form or indicate a bone matrix score 3 (3-3.75, p˂0.05) and strong immunoexpression of osteopontin (p<0.05). The findings indicate that CNb/CPO showed resistance to the propagation of cracks and stimulated bone formation in calvaria defects in rats. (HAp NiobiumHAp Niobium CaNb2O6/Ca3PO42 CaNb2O6Ca3PO42 CaNbOCaPO CaNb2O6/Ca3 PO4 2 CaNb2O6 Ca3 CaNb O Ca PO CaNb2O6/Ca3(PO4) Xray X ray XRD, , (XRD) XRF, (XRF) PSD (PSD SEM. SEM . (SEM) 8 ( mm n 24 (9 days days) (CG) treatment Hydroxyapatite CNbCPO CNb CPO 9 histological osteocalcin MicroCT Micro CT analyses 082 0 82 0.8 MPam12 MPam MPa m1 m MPa.m1/2 p˂0.001, p0001 p p˂0.001 001 % (% (p˂0.001 (mm 33.75, 3375 3.75, 75 (3-3.75 p˂0.05 p005 05 p<0.05. p<0.05 (p<0.05) Ca3PO42 CaNb2O6/Ca3PO4 CaNb2O6Ca3PO4 CaNb2O6Ca3 CaNbOCa CaNb2O6/Ca CaNbO CaNb2O CaNb2O6/Ca3(PO4 (XRD (XRF (SEM (CG 08 0. MPam1 MPa.m1/ p000 p˂0.00 00 (p˂0.00 33 33.75 337 375 3.75 7 (3-3.7 p˂0.0 p00 p<0.0 (p<0.05 CaPO Ca3PO4 CaNb2O6/Ca3PO CaNb2O6Ca3PO CaNb2O6Ca CaNb2O6/Ca3(PO MPa.m1 (p˂0.0 33.7 37 3.7 (3-3. p˂0. p0 p<0. (p<0.0 Ca3PO MPa.m (p˂0. 33. 3. (3-3 p˂0 p<0 (p<0. (p˂0 (3- p˂ p< (p<0 (p˂ (3 (p< (p

ABSTRACT Purpose: To evaluate the long-chain fatty acid and major compounds levels in the feces after prophylactic oral use of Lacticaseibacillus casei in an experimental model of intestinal mucositis. Methods: Fifteen Swiss mice were randomly divided into three groups (n=5/group): The negative or positive control groups (n = 5) received saline orally for 18 days and an the intraperitoneal (i.p.) of saline or 5 Fluorouracil (450 mg/kg) in 15th day, respectability. L. casei group received oral concentration of L. casei (1x109 CFU/mL) for 18 days, the i.p. injection of 5-fluorouracil (450 mg/kg) in 15th days. Tissue samples from colon and each small intestine segment were collected for histopathological analysis. Stool samples were collected. Fecal composition of long-chain fatty acids and sterols were analysed by gas chromatography-mass spectrometry on the 15th and the 18th day. Results: The mucosa layer of all small intestine segments of animals from L. casei showed well preserved epithelium and glands, without necrosis signs, but Goblet cells number decreased. Several long-chain fatty acids and sterols have been identified before and after in the groups. L. casei administration after 5-FU treatment reduced concentrations of linoleic acid (18:2) (p < 0.001) and oleic acid (18:1) (p < 0.001) in feces. Conclusions: L. casei prevented the mucosal damage associated with 5-FU-induced intestinal mucositis reduced long-chain fatty acid levels in the feces. Purpose longchain long chain Methods n=5/group n5group ngroup n (n=5/group) 1 ip i p (i.p. 450 (45 mg/kg mgkg mg kg th day respectability L 1x109 x (1x10 CFU/mL CFUmL CFU mL i.p 5fluorouracil fluorouracil analysis chromatographymass chromatography mass Results glands signs decreased 5FU FU 182 2 (18:2 0.001 0001 0 001 181 (18:1 Conclusions 5FUinduced FUinduced induced (n=5/group (i.p 45 (4 1x10 (1x1 (18: 0.00 000 00 4 ( 1x1 (1x (18 0.0 1x (1 0.

Abstract Curcumin, contained at Turmeric (Curcumalonga), can exert many beneficial pleiotropic activities in the gastrointestinal tract. This study evaluated the antioxidant and anti-inflammatory activity of C. longa on 5-fluorouracil (5-FU)-induced oral mucositis (OM) in hamsters. Phytochemical analysis of crude C. longa extract (CLE) was performed to detect the presence of curcumin by TLC and HPLC. Golden Syrian hamsters were orally pre-treated with CLE (5, 50, or 100mg/kg). Cheek pouch samples were subjected to macroscopic and histopathological evaluation. ELISA was performed to quantify the inflammatory cytokines IL-1β and TNF-α. Superoxide dismutase (SOD), glutathione (GSH) and malondialdehyde (MDA) levels were assessed by ultraviolet-visible spectroscopy analysis. Behavior analysis was conducted by the open field test. Curcumin content in the CLE was 0.55%m/m ± 0.0161 (2.84%). The group treated with 5mg/kg CLE showed healing evidence with macroscopic absence of ulceration (p<0.05) and microscopic aspect of re-epithelialization, discrete inflammatory infiltrate and absence of edema. Treatment with 5mg/kg CLE significantly increased GSH levels, and reduced MDA levels and SOD activity (p˂0.05), and decreased IL-1β (p˂0.05) and TNF-α (p˂0.01) levels. A significant reduction in walking distance, ambulation, speed, and rearing was observed for motor activity. Curcumin reduced oxidative stress, inflammation, and motor activity in hamsters with 5-FU-induced OM.

OBJETIVO: estudar o uso de medicamentos por gestantes atendidas durante o pré-natal em unidades básicas do Sistema Único de Saúde (SUS) na cidade de Natal, rio Grande do Norte, Brasil. MÉTODOS: foram entrevistadas 610 grávidas, entre o primeiro e o terceiro trimestre de gestação, que compareceram para consulta pré-natal em unidades de saúde localizadas nos quatro distritos sanitários de Natal, entre maio e julho de 2006. Os dados foram coletados com entrevistas estruturadas, baseando-se em perguntas uso-orientadas e medicamento-orientadas. Os fármacos foram classificados de acordo com o Anatomical Therapeutic Chemical Classification System (ATC) e segundo critérios de risco para a gestação da Food and Drug Administration (FDA). Utilizou-se teste do chi2 para análise dos dados. RESULTADOS: eram utilizados 1.505 medicamentos, obtendo-se uma média de 2,4 drogas por mulher. O uso de pelo menos um fármaco na gravidez foi relatado por 86,6% das gestantes. As classes mais utilizadas foram os antianêmicos (35,6% dos medicamentos), analgésicos (24,9%), drogas para distúrbios gastrintestinais (9,1%) e vitaminas (7%). De acordo com a classificação do FDA, dos medicamentos empregados 42,7% pertencem a categoria A de risco; 27,1% à categoria B, 29,3% à categoria C; 0,3 à categoria D e nenhum à categoria X. Foram usados, no primeiro trimestre da gestação, 43,6% dos fármacos. Observou-se maior uso de medicamentos quanto maior a escolaridade e a renda familiar da mulher. A automedicação ocorreu em 12,2% dos medicamentos; esse índice foi maior no primeiro trimestre de gravidez e em gestantes de baixa escolaridade e multigestas. CONCLUSÕES: as gestantes de Natal estão sendo expostas a uma variedade de medicamentos, cuja segurança na gravidez ainda é incerta, o que exige prescrição criteriosa para evitar possíveis danos ao feto.

PURPOSE: to study the use of medicines by pregnant women during prenatal care in clinics of the national public health system in the city of Natal, Brazil. METHODS: a total of 610 pregnant women between the first and the third trimesters of pregnancy were interviewed in the public clinics of the four sanitary districts of Natal, from May to July 2006. The data were collected by a structured questionnaire, based in use-oriented and medicine-oriented questions. The drugs were classified according to the Anatomical Therapeutic Chemical Classification System (ATC), in agreement with the gestation risk criteria from the Food and Drugs Administration (FDA). The statistical analysis was made by the chi2 test. RESULTS: a total of 1,505 drugs were used, with an average of 2.4 medications per woman. The use of at least one drug was found in 86.6% of the women. The most frequently used drugs were anti-anemics (35.6%), analgesics (24.9%), drugs for gastrointestinal disorders (9.1%) and vitamins (7%). According to the FDA classification, 42.7% belonged to category A risk, 27.1% to category B, 29.3% to category C, 0.3% to category D and none to category X. The use of medicines during the first trimester of pregnancy amounted to 43.6%. The rate of drug use increased with higher schooling level and family income. Self-medication was found in 12.2% of the drug intake and this rate was higher in the first trimester of gestation and with women with low education level and previous gestations. CONCLUSIONS: pregnant women from Natal are being exposed to a variety of medicines with uncertain safety in pregnancy. Therefore, more careful prescription is needed, to avoid possible fetal damage.

OBJETIVO: Verificar as variações quanto a sexo, idade, número e tempo de internação em pacientes com esquizofrenia. MÉTODOS: O estudo foi realizado no Hospital Doutor João Machado, referência estadual psiquiátrica, situado em Natal/RN - Brasil, no período de 1999 a 2005. O número de casos, o tempo de internação, a idade e o sexo foram coletados. Esses dados foram analisados pela estatística descritiva e Teste de Mann-Whitney com nível de significância de 5%. RESULTADOS: Durante esse tempo, 12.732 pessoas foram internadas. Os portadores de esquizofrenia corresponderam a 35,35% (4.501). A permanência no hospital foi de 44,33 ± 36,9 dias, diferente daquela observada nos não-portadores de esquizofrenia, 29,5 ± 61,6 dias (p < 0,0001). A idade média foi de 38,7 ± 13,5 anos, sendo a maioria dos pacientes do sexo masculino (65,78%). Em 1999, de cada 100 internados, 39,8 eram portadores de esquizofrênia; em 2005 essa proporção reduziu-se para 30,1. A esquizofrenia paranóide foi a mais freqüente, ocorrendo em 1.829 (40%) dos pacientes durante o período. CONCLUSÕES: O estudo aponta uma tendência à redução no número de doentes internados com esquizofrenia, bem como uma diminuição no tempo de internação.

OBJETIVE: To find out the variation range according to gender, age, number of admissions, and stay length in hospital for schizophrenic patients. METHODS: The study was performed in Doutor João Machado Hospital, Natal/RN - Brazil from 1999 through 2005. The number of cases, the stay length in hospital, the gender, and the age of the mentioned group were collected. This data was analyzed by descriptive statistics and Mann-Whitney Test with a 5% significance level. RESULTS: Over that time, 12,732 people were admitted. The schizophrenic patients corresponded to 35.35% (4,501). The stay length in the hospital was 44.33 ± 36,9 days, compared to 29.5 ± 61.6 days for non-schizophrenic patients (p < 0.0001). The average age was 38.7 ± 13.5 years and most patients (65.78%) were male. In 1999, 39.8 out of 100 admitted patients were schizophrenic; in 2005 this ratio was reduced to 30.1. Paranoid schizophrenia was the most prevalent type, reaching 1,829 (40%) patients during the study time. CONCLUSIONS: The study shows a trend to reduced number of patients admitted due to schizophrenia, as well as a reduced stay length in the hospital.

O objetivo do estudo foi apreender as representações sociais do cuidado à saúde bucal, buscando a compreensão desse saber construído na prática vivida por uma população de baixa renda do Nordeste brasileiro. Foram investigados 30 indivíduos moradores do bairro de Cidade da Esperança, Natal (RN) Brasil. A coleta de dados, realizada através de uma entrevista semi-estruturada, foi averiguada pela Análise de Conteúdo Temática (Bardin¹) e pelo software Alceste 4,5. A análise dos dados possibilitou a construção das categorias: Experiência de Dor e Perda Dentária. Se por um lado a Experiência de Dor indica o acesso restrito aos serviços odontológicos, por outro a Perda Dentária denuncia a existência de uma prática mutiladora imposta pelos serviços de saúde pública para solucionar a dor. Nesta categoria está presente ainda a prótese dentária, cujo desejo tem a sua possibilidade limitada pelas condições econômicas. As representações sociais do cuidado à saúde bucal salientam as conseqüências negativas da prática odontológica vigente e aponta para a necessidade de reestruturação dos serviços, levando em conta a percepção da população em relação ao cuidado à saúde bucal.

The objective of this study was identify the social representations of the oral care on daily activities to understand how the common sense works with the oral health, we realized the research with Brazilian northeast people. Thirty residents of Cidade da Esperança District, Natal, RN, Brazil were analyzed. The data was obtained from a semi-structured interview. The interviews were analyzed by Technique of Content Analysis (Bardin¹) as well as by Alceste 4.5 software. The categories were Toothache and Tooth Loss. The Toothache shows how the public health service is restrict. The Tooth Loss shows how the dentistry practice resolved the toothache, and how the prosthetics is limited by the social condition. The Social Representations of the oral care on daily activities show the negative consequences of the dentistry practice and the necessity of the new paradigm to the organization of the public health service taking into consideration the common sense about the oral care on daily activities.

O objetivo do estudo foi apreender as representações sociais do cuidado à saúde bucal, buscando a compreensão desse saber construído na prática vivida por uma população de baixa renda do Nordeste brasileiro. Foram investigados 30 indivíduos moradores do bairro de Cidade da Esperança, Natal (RN) Brasil. A coleta de dados, realizada através de uma entrevista semi-estruturada, foi averiguada pela Análise de Conteúdo Temática (Bardin¹) e pelo software Alceste 4,5. A análise dos dados possibilitou a construção das categorias: Experiência de Dor e Perda Dentária. Se por um lado a Experiência de Dor indica o acesso restrito aos serviços odontológicos, por outro a Perda Dentária denuncia a existência de uma prática mutiladora imposta pelos serviços de saúde pública para solucionar a dor. Nesta categoria está presente ainda a prótese dentária, cujo desejo tem a sua possibilidade limitada pelas condições econômicas. As representações sociais do cuidado à saúde bucal salientam as conseqüências negativas da prática odontológica vigente e aponta para a necessidade de reestruturação dos serviços, levando em conta a percepção da população em relação ao cuidado à saúde bucal.

The objective of this study was identify the social representations of the oral care on daily activities to understand how the common sense works with the oral health, we realized the research with Brazilian northeast people. Thirty residents of Cidade da Esperança District, Natal, RN, Brazil were analyzed. The data was obtained from a semi-structured interview. The interviews were analyzed by Technique of Content Analysis (Bardin¹) as well as by Alceste 4.5 software. The categories were Toothache and Tooth Loss. The Toothache shows how the public health service is restrict. The Tooth Loss shows how the dentistry practice resolved the toothache, and how the prosthetics is limited by the social condition. The Social Representations of the oral care on daily activities show the negative consequences of the dentistry practice and the necessity of the new paradigm to the organization of the public health service taking into consideration the common sense about the oral care on daily activities.

OBJETIVO: Verificar os principais fatores associados à tuberculose pulmonar e os resultados da baciloscopia. DESENHO DO ESTUDO: Trata-se de um estudo seccional de base secundária. METODOLOGIA: A coleta de dados foi realizada com 189 prontuários de pacientes com idade acima de 25 anos atendidos no Hospital Giselda Trigueiro em Natal/RN, Brasil, no período de 2000 a 2002. Os fatores associados identificados e os resultado da baciloscopia foram apresentados através da distribuição percentual. RESULTADOS: A média de idade dos pacientes variou entre 43,5 + 18,5 anos, sendo 73% do sexo masculino. Os principais fatores associados foram etilismo e tabagismo (20,6%), tabagismo (19,8%), etilismo (16,7%), contágio direto (10,3%), diabetes mellitus (8,7%), pneumonia não tratada (6,3%), abandono de esquema (6,3%) e outros fatores (11,1%). A baciloscopia foi realizada em 84,1% dos pacientes. Em 44,7% deles, o diagnóstico foi negativo, enquanto que em 55,3% foi positivo. CONCLUSÃO: Os fatores associados contribuem para o diagnóstico da tuberculose pulmonar na medida em que a baciloscopia apresenta uma baixa sensibilidade.

OBJECTIVES: This study aims to find the main factors associated with pulmonary tuberculosis and sputum smear. DESIGN: A cross-sectional study based on secondary records. SAMPLE AND METHODS: The study included one hundred eight-nine (189) patients up to 25 years of age who received care at Hospital Giselda Trigueiro (Natal/RN) from 2000 to 2002. Associated factors were collected from patient records. RESULTS: The results demonstrated that the factors associated to tuberculosis were alcoholism and smoking (20.6%), alcoholism (16.7%), smoking (19.8%), diabetes (8.7%), direct infection (10.3%), untreated pneumonia (6.3%), abandoned treatment (6.3%), and other factors (11.1%). Sputum smear was performed in 84.1% of the cases. 44.7% of these presented positive results and 55.3% were negative. CONCLUSION: The factors associated to pulmonary tuberculosis may contribute towards its diagnosis, since the sputum smear presents low sensitivity.

OBJETIVO: Verificar os principais fatores associados à tuberculose pulmonar e os resultados da baciloscopia. DESENHO DO ESTUDO: Trata-se de um estudo seccional de base secundária. METODOLOGIA: A coleta de dados foi realizada com 189 prontuários de pacientes com idade acima de 25 anos atendidos no Hospital Giselda Trigueiro em Natal/RN, Brasil, no período de 2000 a 2002. Os fatores associados identificados e os resultado da baciloscopia foram apresentados através da distribuição percentual. RESULTADOS: A média de idade dos pacientes variou entre 43,5 + 18,5 anos, sendo 73% do sexo masculino. Os principais fatores associados foram etilismo e tabagismo (20,6%), tabagismo (19,8%), etilismo (16,7%), contágio direto (10,3%), diabetes mellitus (8,7%), pneumonia não tratada (6,3%), abandono de esquema (6,3%) e outros fatores (11,1%). A baciloscopia foi realizada em 84,1% dos pacientes. Em 44,7% deles, o diagnóstico foi negativo, enquanto que em 55,3% foi positivo. CONCLUSÃO: Os fatores associados contribuem para o diagnóstico da tuberculose pulmonar na medida em que a baciloscopia apresenta uma baixa sensibilidade.

OBJECTIVES: This study aims to find the main factors associated with pulmonary tuberculosis and sputum smear. DESIGN: A cross-sectional study based on secondary records. SAMPLE AND METHODS: The study included one hundred eight-nine (189) patients up to 25 years of age who received care at Hospital Giselda Trigueiro (Natal/RN) from 2000 to 2002. Associated factors were collected from patient records. RESULTS: The results demonstrated that the factors associated to tuberculosis were alcoholism and smoking (20.6%), alcoholism (16.7%), smoking (19.8%), diabetes (8.7%), direct infection (10.3%), untreated pneumonia (6.3%), abandoned treatment (6.3%), and other factors (11.1%). Sputum smear was performed in 84.1% of the cases. 44.7% of these presented positive results and 55.3% were negative. CONCLUSION: The factors associated to pulmonary tuberculosis may contribute towards its diagnosis, since the sputum smear presents low sensitivity.