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1.
Int Urol Nephrol ; 56(1): 1-7, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37698709

RESUMO

Prostate cancer is one of the tumors with the highest incidence and mortality among men worldwide, and this situation is no different in South America. However, epidemiological data are highly variable for each country and even more so than in North America. These data may be influenced by the very low rate of early detection of disease, availability of diagnostic methods, proper data collection, and limited access to specialized multidisciplinary treatment. For many South American countries, academic referral centers can only offer state-of-the-art diagnostics and multidisciplinary cancer treatment for patients who live in or can travel to large cities, so most patients are cared for by non-expert urologists with limited resources, which can have a negative impact on their prognosis and worsen oncologic outcomes. We aimed to show the clinical management of prostate cancer patients, the current advances in management, limitations present in South America, and how a multidisciplinary approach in referral cancer centers conformed of specialized urologists, medical oncologists, and mental health professionals can maximize patient outcomes.


Assuntos
Detecção Precoce de Câncer , Neoplasias da Próstata , Masculino , Humanos , Neoplasias da Próstata/epidemiologia , Neoplasias da Próstata/terapia , Neoplasias da Próstata/diagnóstico , América do Sul/epidemiologia , Oncologia , Urologistas
2.
Odontol.sanmarquina (Impr.) ; 26(4): e24640, oct.-dic. 2023.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1551154

RESUMO

Objetivo: El propósito de este estudio fue observar el efecto del uso de L-PRF en defectos infraoseos de pacientes con periodontitis en estadios avanzados. Métodos: Se incluyeron 32 defectos infraoseos de 12 pacientes con diagnóstico de Periodontitis estadio III y IV (Workshop 2018). Se realizó raspaje a campo abierto con colocación de membrana de L-PRF. Se incluyeron defectos infraóseos de 1-2-3 paredes y cráter óseo. Se registró la profundidad de sondaje (PS), nivel de inserción clínica (NIC), índice de placa (IP) e índice de sangrado (IS). Se realizaron radiografías periapicale digitales antes de la cirugía y al cuarto mes para observar el llenado óseo. Resultados: De los 32 defectos el 75 % mostró disminución de la profundidad de sondaje (PS) y el 66 % mejoro el nivel de inserción clínica (NIC). Se realizó un análisis de correlación pre y posquirúrgico en PS: MV (p = 0,02), MP/L (p = 0,00), DP/L (p = 0,00) y V (p =0,00). El porcentaje de llenado óseo fue de 62,96 % (DS± 3,88). Conclusiones: La mayoría de los defectos infraóseos mostraron radiográficamente llenado óseo parcial o total con el uso de membranas L-PRF. Además, se mejoraron los parámetros clínicos de profundidad de sondaje y nivel de inserción clínica.


Objective: The purpose of this study was to observe the effect of L-PRF (Leuko- cyte-Platelet Rich Fibrin) usage in intraosseous defects in patients with advanced-stages of periodontitis. Methods: Thirty-two intraosseous defects in 12 patients diagnosed with stage III and IV periodontitis (Workshop 2018) were included in the study. Open flap debridement was performed with the placement of L-PRF membranes. Included defects consisted of 1-2-3 wall defects and osseous craters. Parameters such as probing depth (PD), clinical attachment level (CAL), plaque index (PI), and bleeding index (BI) were recorded. Digital periapical radiographs were taken before surgery and at the fourth month to assess bone fill. Results: Out of the 32 defects, 75% showed a reduction in probing depth (PD), and 66% showed improvement in clinical attachment level (CAL). Pre- and post-surgical correlation analysis was performed for PD: MV (p = 0.02), PI/L (p = 0.00), BI/L (p = 0.00), and CAL (p = 0.00). The percentage of bone fill was 62.96% (±3.88 SD). Conclusion: The majority of intraosseous defects exhibited partial or complete radiographic bone fill with the use of L-PRF membranes. Furthermore, clinical parameters such as probing depth and clinical attachment level improved.

3.
Ecancermedicalscience ; 17: 1614, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38414970

RESUMO

Introduction: Prostate cancer has increased in recent years, increasing the costs associated with its treatment. Second-generation oral antiandrogens have emerged as an attractive therapeutic option. Objective: To compare the health value provided by enzalutamide and apalutamide, by evaluating two stages of prostate cancer: non-metastatic castration-resistant prostate cancer (nmCRPC) and metastatic hormone-sensitive prostate cancer (mHSPC). Methods: To establish, through the American Society of Clinical Oncology (ASCO) value framework, a contrast between two technologies in two stages of prostate cancer. The monthly cost of the two technologies was calculated according to the current price regulation norm in Colombia. Results: Enzalutamide showed a higher net health benefit score compared to apalutamide for both nmCRPC (48.33 versus 33.46) and mHSPC (52.0 versus 40.75). The cost per net health benefit point for the nmCRPC stage was $214,723 Colombian Pesos (COP) ($54.84 USD) with enzalutamide compared to $291,925 COP ($74.56 USD) with apalutamide, and for the mHSPC stage was $199,692 COP ($51.00 USD) with enzalutamide and $239,701 COP ($61.22 USD) with apalutamide. Conclusion: After comparing enzalutamide versus apalutamide in the nmCRPC and mHSPC stages through the ASCO value framework, enzalutamide showed a more prominent net clinical benefit and a lower investment per point awarded.

4.
Neurourol Urodyn ; 39(1): 181-189, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31724210

RESUMO

AIMS: We sought to determine whether somatic lumbar nerve transfer to the pelvic nerve's anterior vesical branch after sacral decentralization for detrusor muscle reinnervation also leads to aberrant innervation of the bladder outlet. METHODS: Twenty-six female mongrel hound dogs underwent transection of sacral dorsal and ventral spinal roots (ie, sacral decentralization). Immediately afterward, 12 received genitofemoral nerve transfer and 9 received femoral nerve branch transfer. Five were left sacrally decentralized. Controls included 3 sham-operated and 6 unoperated. Eight months postsurgery, the bladder and urethra were injected with retrograde tracing dyes cystoscopically. After 3 weeks, detrusor and urethral pressures were assayed electrophysiologically immediately before euthanasia and characterization of neural reinnervation. RESULTS: Electrical stimulation of spinal cords or roots did not lead to increased urethral sphincter pressure in nerve transfer animals, compared with decentralized animals, confirming a lack of functional reinnervation of the bladder outlet. In contrast, mean detrusor pressure increased after lumbar cord/root stimulation. In sham/unoperated animals, urethral and bladder dye injections resulted in labeled neurons in sacral level neural structures (dorsal root ganglia [DRG], sympathetic trunk ganglia [STG], and spinal cord ventral horns); labeling absent in decentralized animals. Urethral dye injections did not result in labeling in lumbar or sacral level neural structures in either nerve transfer group while bladder dye injections lead to increased labeled neurons in lumbar level DRG, STG, and ventral horns, compared to sacrally decentralized animals. CONCLUSION: Pelvic nerve transfer for bladder reinnervation does not impact urethral sphincter innervation.


Assuntos
Transferência de Nervo/métodos , Nervos Espinhais/transplante , Uretra/inervação , Bexiga Urinária/inervação , Animais , Cães , Estimulação Elétrica , Feminino , Neurônios/fisiologia
5.
Rev. colomb. reumatol ; 25(4): 271-286, oct.-dic. 2018. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-990959

RESUMO

RESUMEN Introducción: La enfermedad periodontal (EP) y la artritis reumatoide (AR) son enfermedades inflamatorias crónicas multifactoriales que tienen en común algunos factores etiopatogénicos y la destrucción de los tejidos dentoalveolares y de las articulaciones sinoviales, de tal forma que se han identificado anticuerpos contra microorganismos periodontales en el fluido crevicular, líquido sinovial y en la membrana sinovial. Objetivo: Identificar, recuperar, analizar críticamente y sintetizar la literatura disponible acerca de la prevalencia de microorganismos periodontales en el líquido sinovial de pacientes con AR. Materiales y métodos: Se realizó búsqueda sistemática en Medline, ScienceDirect, SciELO y Google Scholar a través de los descriptores en salud Rheumatoid arthritis, periodontal microorganisms y synovial fluid. Se incluyeron artículos que describieron la presencia de microorganismos periodontales aislados en líquido sinovial de pacientes diagnosticados con AR. La búsqueda se cerró en febrero de 2017 y fue realizada con metodología PRISMA. Se emplearon las fichas de lectura crítica OSTEBA para valorar la validez externa y el nivel de evidencia de cada artículo en función del rigor metodológico. Resultados: Catorce publicaciones describieron la presencia de microorganismos periodontales en líquido sinovial de pacientes con EP y AR. Seis publicaciones realizaron detección de microorganismos periodontales en muestras de líquido sinovial, identificando en todas a P. gingivalis. Conclusiones: Los estudios incluidos evidenciaron la presencia de microrganismos periodontales en el líquido sinovial en sujetos con EP y AR, asociando la prevalencia de P. gingivalis con el aumento de los niveles de anticuerpos anti-CCP, lo que podría exacerbar los procesos inflamatorios y producir reacciones autoinmunes en AR.


ABSTRACT Introduction: Periodontal disease (PD) and rheumatoid arthritis (RA) are multifactorial chronic inflammatory diseases that share similar aetiopathogenic mechanisms that lead to the destruction of both dental-alveolar tissues and synovial joints, in such way that antibodies against periodontal pathogens have been identified in the crevicular fluid and in the synovial fluid and membranes. Objective: To identify, recover, critically analyze and synthesize the available literature on the prevalence of periodontal microorganisms in synovial fluid of patients with RA. Materials and methods: A systematic search was performed in MEDLINE, ScienceDirect, SciELO and Google Scholar using the medical subject headings "Rheumatoid arthritis", "periodontal microorganisms" and "synovial fluid". Articles were included that described the presence of isolated periodontal pathogens in synovial fluid of patients diagnosed with RA. The search was closed in February 2017 and was performed using PRISMA methodology. The OSTEBA critical reading sheets were used to assess the external validity and level of evidence of each article in terms of methodological rigor. Results: A total of 14 publications were included that described the presence of periodontal pathogens in synovial fluid of patients with PD and RA. Seven publications detected periodontal pathogens in synovial fluid, with P. gingivalis being positive in all of them. Conclusions: The included studies provided evidence of the presence of periodontal microorganisms in the synovial fluid in subjects with PD and RA, associating the prevalence of P. gingivalis with increased levels of anti-cyclic citrullinated peptide (anti-CCP) antibodies, which could exacerbate inflammatory processes and produce autoimmune reactions in RA.


Assuntos
Artrite Reumatoide , Líquido Sinovial , Doenças Periodontais , Membrana Sinovial , Líquido do Sulco Gengival
6.
Anat Rec (Hoboken) ; 301(8): 1426-1441, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29575690

RESUMO

Many studies examining the innervation of genitourinary structures focus on either afferent or efferent inputs, or on only one structure of the system. We aimed to clarify innervation of the bladder, external urethral sphincter (EUS) and clitoris. Retrograde dyes were injected into each end organ in female dogs. Spinal cord, mid-bladder, and spinal, caudal mesenteric, sympathetic trunk and pelvic plexus ganglia were examined for retrograde dye-labeled neurons. Neurons retrogradely labeled from the bladder were found primarily in L7-S2 spinal ganglia, spinal cord lateral zona intermedia at S1-S3 levels, caudal mesenteric ganglia, T11-L2 and L6-S2 sympathetic trunk ganglia, and pelvic plexus ganglia. The mid-bladder wall contained many intramural ganglia neurons labeled anterogradely from the pelvic nerve, and intramural ganglia retrogradely labeled from dye labeling sites surrounding ureteral orifices. Neurons retrogradely labeled from the clitoris were found only in L7 and S1 spinal ganglia, L7-S3 spinal cord lateral zona intermedia, and S1 sympathetic trunk ganglia, and caudal mesenteric ganglia. Neurons retrogradely labeled from the EUS were found in primarily at S1 and S2 spinal ganglia, spinal cord lamina IX at S1-S3, caudal mesenteric ganglia, and S1-S2 sympathetic trunk ganglia. Thus, direct inputs from the spinal cord to each end organ were identified, as well as multisynaptic circuits involving several ganglia, including intramural ganglia in the bladder wall. Knowledge of this complex circuitry of afferent and efferent inputs to genitourinary structures is necessary to understand and treat genitourinary dysfunction. Anat Rec, 2018. © 2018 Wiley Periodicals, Inc.


Assuntos
Clitóris/inervação , Neurônios , Nervos Espinhais , Uretra/inervação , Bexiga Urinária/inervação , Animais , Clitóris/química , Clitóris/citologia , Corantes/administração & dosagem , Cães , Feminino , Neurônios/química , Nervos Espinhais/química , Nervos Espinhais/citologia , Coloração e Rotulagem/métodos , Uretra/química , Uretra/citologia , Bexiga Urinária/química , Bexiga Urinária/citologia
7.
J Investig Clin Dent ; 9(2): e12313, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29322686

RESUMO

The increasing prevalence of human papilloma virus (HPV)-positive oral tumors can be considered an epidemic. Although the incidence of HPV cervical cancer is decreasing, the incidence of oral cavity and oropharyngeal cancers associated with HPV is increasing. The presence of certain HPV genotypes could be a predictor of future oral cancer lesions, although lesions associated with HPV could be less aggressive and exhibit a higher survival rate. In the present study, we review the most important biologic, clinic, epidemiologic, and prognostic factors associated with HPV infection and oral cancer.


Assuntos
Neoplasias Bucais/virologia , Papillomaviridae/patogenicidade , Infecções por Papillomavirus/complicações , Humanos , Incidência , Neoplasias Bucais/epidemiologia , Infecções por Papillomavirus/epidemiologia , Prevalência , Prognóstico
8.
Neurourol Urodyn ; 36(1): 91-97, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-26452068

RESUMO

AIMS: Complete spinal cord injury does not block perceptual responses or inferior solitary nucleus activation after genital self-stimulation, even though the vagus is not thought to innervate pelvic structures. We tested if vagus nerve endings sprout after bladder decentralization to innervate genitourinary structures in canines with decentralized bladders. METHODS: Four reinnervation surgeries were performed in female hounds: bilateral genitofemoral nerve transfer to pelvic nerve with vesicostomy (GNF-V) or without (GFN-NV); and left femoral nerve transfer (FNT-V and FNT-NV). After 8 months, retrograde dyes were injected into genitourinary structures. Three weeks later, at euthanasia, reinnervation was evaluated as increased detrusor pressure induced by functional electrical stimulation (FES). Controls included un-operated, sham-operated, and decentralized animals. RESULTS: Increased detrusor pressure was seen in 8/12 GFNT-V, 4/5 GFNT-NV, 5/5 FNT-V, and 4/5 FNT-NV animals after FES, but not decentralized controls. Lumbar cord segments contained cells labeled from the bladder in all nerve transfer animals with FES-induced increased detrusor pressure. Nodose ganglia cells labeled from the bladder were observed in 5/7 nerve transfer animals (1/2 GNT-NV; 4/5 FNT-V), and from the clitoris were in 6/7 nerve transfer animals (2/2 GFNT-NV; 4/5 FNT-V). Dorsal motor nucleus vagus cells labeled from the bladder were observed in 3/5 nerve transfer animals (1/2 GFNT-NV; 2/3 FNT-V), and from the clitoris in 4/5 nerve transfer animals (1/2 GFNT-NV; 3/3 FNT-V). Controls lacked this labeling. CONCLUSIONS: Evidence of vagal nerve sprouting to the bladder and clitoris was observed in canines with lower motoneuron lesioned bladders. Neurourol. Urodynam. 36:91-97, 2017. © 2015 Wiley Periodicals, Inc.


Assuntos
Clitóris/inervação , Neurônios Motores , Transferência de Nervo/métodos , Bexiga Urinária/inervação , Nervo Vago/crescimento & desenvolvimento , Animais , Clitóris/crescimento & desenvolvimento , Cães , Estimulação Elétrica , Feminino , Nervo Femoral/cirurgia , Regeneração Nervosa , Gânglio Nodoso/citologia , Gânglio Nodoso/crescimento & desenvolvimento , Pressão , Recuperação de Função Fisiológica , Traumatismos da Medula Espinal/fisiopatologia , Traumatismos da Medula Espinal/cirurgia , Bexiga Urinária/crescimento & desenvolvimento , Bexiga Urinária/fisiopatologia
9.
Nat Rev Urol ; 12(2): 100-18, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25666987

RESUMO

During the past century, diverse studies have focused on the development of surgical strategies to restore function of a decentralized bladder after spinal cord or spinal root injury via repair of the original roots or by transferring new axonal sources. The techniques included end-to-end sacral root repairs, transfer of roots from other spinal segments to sacral roots, transfer of intercostal nerves to sacral roots, transfer of various somatic nerves to the pelvic or pudendal nerve, direct reinnervation of the detrusor muscle, or creation of an artificial reflex pathway between the skin and the bladder via the central nervous system. All of these surgical techniques have demonstrated specific strengths and limitations. The findings made to date already indicate appropriate patient populations for each procedure, but a comprehensive assessment of the effectiveness of each technique to restore urinary function after bladder decentralization is required to guide future research and potential clinical application.


Assuntos
Nervos Periféricos/transplante , Polirradiculopatia/cirurgia , Traumatismos da Medula Espinal/cirurgia , Raízes Nervosas Espinhais/cirurgia , Bexiga Urinaria Neurogênica/cirurgia , Bexiga Urinária/inervação , Humanos , Procedimentos Neurocirúrgicos , Polirradiculopatia/complicações , Procedimentos de Cirurgia Plástica , Traumatismos da Medula Espinal/complicações , Bexiga Urinaria Neurogênica/etiologia
10.
J Urol ; 193(6): 2138-45, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25444958

RESUMO

PURPOSE: We investigated whether the reinnervated neuronal pathway mediates contraction via the same neurotransmitter and receptor mechanisms as the original pathway. MATERIALS AND METHODS: After decentralizing the bladder by transecting the sacral roots in dogs we performed peripheral nerve transfer, including bilateral genitofemoral to pelvic nerve transfer and unilateral left femoral nerve to bilateral pelvic nerve transfer. Reinnervation was assessed 7.5 months postoperatively by monitoring bladder pressure during electrical stimulation of the transferred nerves, spinal ventral roots and spinal cord. RESULTS: Of the 17 dogs with genitofemoral to pelvic nerve transfer 14 (82%) demonstrated functional bladder reinnervation as evidenced by increased bladder pressure during stimulation of the transferred genitofemoral nerve, or L3 or L4 spinal ventral roots. Lumbar spinal cord stimulation caused increased bladder pressure in 9 of 10 dogs (90%) with unilateral left femoral nerve to bilateral pelvic nerve transfer. Succinylcholine virtually eliminated the bladder pressure increases induced by electrical stimulation of the transferred somatic nerves or of the lumbar spinal segments that contribute axons to these donor nerves. In unoperated or sham operated controls succinylcholine had no effect on nerve evoked bladder pressure increases but it substantially decreased the urethral and anal sphincter pressure induced by stimulating the lumbosacral spinal cord or the S2-S3 spinal ventral roots. The reinnervated detrusor muscles of dogs with genitofemoral to pelvic nerve transfer and unilateral left femoral nerve to bilateral pelvic nerve transfer also showed increased α1 nicotinic receptor subunit immunoreactivity in punctate dots on detrusor muscle fascicles and in neuronal cell bodies. This staining was not observed in controls. CONCLUSIONS: Succinylcholine sensitive nicotinic receptors, which normally mediate only skeletal muscle neuromuscular junction neurotransmission, appeared in the new neuronal pathway after genitofemoral to pelvic and unilateral femoral nerve to bilateral pelvic nerve transfer. This suggests end organ neuroplasticity after reinnervation by somatic motor axons.


Assuntos
Vias Autônomas/cirurgia , Contração Muscular , Músculo Liso/fisiologia , Transferência de Nervo , Junção Neuromuscular/fisiologia , Receptores Nicotínicos/fisiologia , Traumatismos da Medula Espinal/cirurgia , Raízes Nervosas Espinhais/cirurgia , Bexiga Urinária/fisiologia , Bexiga Urinária/cirurgia , Animais , Cães , Feminino , Bexiga Urinária/inervação
11.
J Urol ; 193(3): 1042-51, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25066874

RESUMO

PURPOSE: We determined whether transfer of a primarily motor nerve (femoral) to the anterior vesicle branch of the pelvic nerve would allow for more effective bladder reinnervation than transfer of a primarily sensory nerve (genitofemoral). MATERIALS AND METHODS: A total of 41 female mongrel dogs underwent bladder decentralization and then bilateral nerve transfer, or served as sham operated or unoperated controls. Decentralization was achieved by bilateral transection of all sacral roots that induced bladder contraction upon electrical stimulation. Retrograde neuronal labeling dye was injected in the bladder 3 weeks before sacrifice. RESULTS: Increased detrusor pressure after direct stimulation of the transferred nerve, lumbar spinal cord or spinal root was observed in 12 of 17 dogs with genitofemoral nerve transfer and in 9 of 10 with femoral nerve transfer (mean ± SEM 7.6 ± 1.4 and 11.7 ± 3.1 cm H2O, respectively). Mean detrusor pressure after direct electrical stimulation of transferred femoral nerves was statistically significantly greater than after stimulation of transferred genitofemoral nerves. Retrograde labeled neurons from the bladder observed in upper lumbar cord segments after genitofemoral and femoral nerve transfer confirmed bladder reinnervation, as did labeled axons at the nerve transfer site. CONCLUSIONS: While transfer of a mixed sensory and motor nerve (genitofemoral) or a primarily motor nerve (femoral) can reinnervate the bladder, using the primarily motor nerve provided greater return of nerve evoked detrusor contraction. This surgical approach may be useful to achieve bladder emptying in patients with lower motor spinal cord injury.


Assuntos
Nervo Femoral/cirurgia , Transferência de Nervo , Bexiga Urinária/inervação , Animais , Cães , Estimulação Elétrica , Feminino , Bexiga Urinária/fisiologia
12.
Rev. colomb. quím. (Bogotá) ; 40(3): 337-348, dic. 2011. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-639946

RESUMO

Dos nuevos materiales tipo hidrotalcita, basados en NiCoCr y NiCoFe, se obtuvieron por el método hidrotérmico. Estos materiales se modificaron con especies de vanadio por intercambio iónico. Los sólidos se caracterizaron usando difracción de rayos X (DRX), análisis elemental (absorción atómica), y análisis termogravimétrico (ATG). Los sólidos con y sin intercambio se trataron térmicamente para obtener los respectivos óxidos mixtos, que posteriormente se evaluaron en la reacción de deshidrogenaciónoxidativa de propano (Dhop) a una velocidad espacial de 50 mL/min g y en un rango de temperatura comprendido entre 250 y 500 °C. Los estudios catalíticos mostraron un efecto positivo al incorporar el vanadio para el material NiCoCr, mientras que para el sistema NiCoFe modificado se observó una disminución en su actividad catalítica.


Two novel hydrotalcite-like materials have been synthesized by hydrothermal treatment. Using ionic exchange method, the materials have been modified with vanadium species. Characterization of the materials was carried out by X-Ray diffraction (XRD), chemical analyses (atomic absorption), and Thermogravimetric analyses (TGA). Modified and non-modified materials have been calcined in order to obtain respective mixed oxides, which were tested in oxidative dehydrogenation of propane (ODHP) at a space velocity of 50 mL/min g with a temperature range between 250-500 °C. The catalytic studies showed a positive effect by incorporating vanadium for NiCoCr system, while for the NiCoFe modified system a decrease in catalytic activity was shown.


Dois novos materiais tipo hidrotalcita baseados em NiCoCr e NiCoFe obtiveram-se pelo método hidrotérmico. Esses materiais foram modificados com espécies de vanádio por troca iô nica. Os materiais caracterizaram-se usando difração de raios X (DRX), análise elementar (absorçãoatômica) e análisetermogravimétrica (ATG). Os sólidos com e sem troca foram tratados termicamente para obter os respectivos óxidos mistos, que posteriormente se avaliaram na reação de desidrogenaçãooxidativa de propano (DHOP) a uma velocidade espacial de 50 mL/min g e em uma faixa de temperatura entre 250 a 500 °C. Os estudos catalíticos mostraram um efeito positivo ao incorporar o vanádio para o material NiCoCr, enquanto para o sistema NiCoFe modificado foi observada uma diminuiçãona sua atividade catalítica.

13.
Rev. Estomat ; 13(2): 5-17, sept. 2005. tab
Artigo em Espanhol | LILACS | ID: lil-565756

RESUMO

Objetivos: describir el estado periodontal y la microbiota subgingival de mujeres gestantes con diagnostico de preeclampsia en el Hospital Universitario del Valle (HUV) de Cali-Colombia. Metodología: participaron 8l mujeres con diagnóstico de preeclampsia, internadas en el HUV,se les colectaron datos médicos, odontológicos y periodontales tales como profundidad de sondeo, nivel de inserción clínico, se tomaron muestras microbiológicas subgingivales paracultivo y se realizo el diagnóstico clínico periodontal teniendo en cuenta los parámetros de la AAP consensus report-1999. Resultados: el 63% de la gestantes presento preeclampsia leve y el 27.2% preeclampsia severa. Un 91.4% (n=74) de las pacientes presentoafección en el estado de salud periodontal dentro del cual el 59.3% (n=48) presentó un diagnóstico de periodontitis crónica y solo el 8.6% de las gestantes presento un buen estadode salud periodontal. Los microorganismos periodontopáticos más frecuentes en las mujeres con preeclampsia fueron Fusobacteriumssp 80.2% (n=65), Porphyromonas gingivalis 59.3% (n=48) y Prevotella intermedian/nigrescens 51.9% (n=42).Conclusiones: Se encontró en un alto porcentaje de mujeres con preeclampsia afección en el estado periodontal predominando un diagnostico clínico de periodontitis crónica y presencia de una microbiota periodontopática y solo unbajo porcentaje de las gestantes presentaron un estado de salud periodontal.


Objective: to describe the clinical periodontal status and the subgingival microbiota composition in a group of 81 women having preeclampsia. Methods: clinical, medical and periodontal datawere determined in women with preeclampsia at the University Hospital of Valle in Cali-Colombia. Periodontal status and diagnosis were determined by means of probing depth and clinical attachment level (Diagnosis ConsensusAAP-1999). A sample of subgingival plaque was taken for microbiological analysis. Results: 63% of the cases had mild preeclampsiaand 27.2% had severe preeclampsia. The periodontal status was affected in 91.4% of patients (n=64); 59.3% (n=48) of them presented chronic periodontitis and only 8.6% presentedhealthy periodontium. Periodontopathic bacteria was found in preeclamptic women, the most prevalent microorganisms were Fusobacteriumssp 80.2% (n=65), P. gingivalis 59.3% (n=48) and Prevotella intermedia/nigrescens 51.9% (n=42).Conclusion: preeclamptic women showed a high percentage of chronic periodontitis and presented also periodontopathic microbiota. A low percentage of pregnant women presented healthy periodontium.


Assuntos
Gravidez , Boca/microbiologia , Periodontite Crônica , Gengivite , Doenças Periodontais , Pré-Eclâmpsia , Gravidez
14.
Rev. Estomat ; 12(2): 44-56, sept. 2004. tab
Artigo em Espanhol | LILACS | ID: lil-565770

RESUMO

Objetivos: Describir el estado periodontal y la microbiota subgingival de mujeres gestantes con diagnostico de preeclampsia en el Hospital Universitario del Valle (HUV) de Cali-Colombia. Metodología: Participaron 81 mujeres con diagnóstico de preeclampsia, internadas en el Hospital Universitario del Valle, a quienes se les colectaron datos médicos y periodontales tales como profundidad al sondeo, nivel de inserción clínica, índice gingival y periodontal, con el fin de realizar el diagnóstico clínico periodontal teniendo en cuenta los parámetros de la Academia Americana de Periodoncia (AAP 1999); además se tomaron muestras microbiológicas subgingivales para cultivo e identificación de bacterias periodontopatógenas. Resultados: El 63 de la gestantes presentó preeclampsia leve y el 27.2 preeclampsia severa. Un 91.4 (n=74) de las pacientes presentó afección en el estado de salud periodontal dentro del cual el 59.3 (n=48) presentó un diagnóstico de periodontitis crónica y solo el 8.6 de las gestantes presentó un buen estado de salud periodontal. Los microorganismos periodontopáticos más frecuentes en las mujeres con preeclampsia fueron Fusobacterium ssp 80.2 (n=65), Porphyromonas gingivalis 59.3 (n = 48) y Prevotella intermedian/nigrescens 51.9 (n=42). Conclusiones: Se encontró que una alta proporción de las mujeres con preeclampsia tuvo afección en el estado periodontal con predominio de un diagnostico clínico de periodontitis crónica y presencia de una microbiota periodontopática. Solo un bajo porcentaje de las gestantes presentaron un estado de salud periodontal.


Objective: To describe periodontal status and subgingival microbiota composition among pre-eclamptic women institutionalized in the Hospital Universitario del Valle (HUV) – Cali- Colombia. Methods: Eighty one preeclamptic women were studied in the HUV after signing the inform consent and filling inclusion criteria. Selected patients were examined and their medical, dental, periodontal data recorded. Periodontal index used were pocket depth, clinical attachment loss six measurements by tooth in the whole dentition except third molars. Subgingival samples for bacterial culture were taken and Periodontal diagnosis made according to the American Academy of Periodontology (AAP) concensus report-1999. Results: Sixty three percent of women had slight pre-eclampsia and 27.2 severe preaclampsia. Ninety one percent women (n=74) had certain degree of gingival and periodontal afection. Fifty nine percent (n=48) had Chronic Periodontitis and only 8.6 preeclamptic women had oral health. More prevalent periodontal organisms among pre-eclamptic women were Fusobacterium ssp 80.2 (n=65), Porphyromonas gingivalis 59.3 (n = 48) and Prevotella intermedian/nigrescens 51.9 (n=42). Conclusions: More pre-eclamptic women had chronic periodontitis and also harbored in their subgingival microbiota important periodontophatic organisms. Treatment of periodontal disease before or during pregnancy might be important to reduce medical and systemic health complications.


Assuntos
Gravidez , Pré-Eclâmpsia , Periodontite Crônica , Dinoprostona , Fusobacterium , Doenças Periodontais , Índice Periodontal , Bolsa Periodontal , Porphyromonas gingivalis , Fator de Necrose Tumoral alfa
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