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BACKGROUND: Overprescribing of parenteral nutrition (PN) increases costs and risks to patients, including from central line-associated bloodstream infection (CLABSI). With CLABSI reduction in mind, our children's hospital began an iterative quality improvement effort to decrease PN utilization by first ensuring appropriate initiation and then defining and ensuring appropriate discontinuation. METHODS: Education was launched along with audits to evaluate for appropriate PN indications. Next, a literature review was conducted to guide the development of an algorithm to appropriately wean and discontinue PN. Lastly, all PN discontinuations were audited for agreement with the new guideline. Retrospectively, monthly PN utilization index (orders per patient-day) was plotted on a statistical process control chart to assess change over time. The presence of PN as a risk factor for CLABSI events and the overall hospital CLABSI rate were trended. RESULTS: Mean PN utilization index fell from 0.156 (July 2018 to January 2019) to 0.12 (February 2019 to August 2020) (P < .01). For 18 months, no PN utilization index reached the baseline lower control limit of 0.144, demonstrating special-cause variation and sustained change. PN as a risk factor for hospital CLABSI cases decreased from most prevalent (49% of cases) to fifth most prevalent (29%) as the CLABSI rate trended down. CONCLUSION: Engaging frontline staff in the development of a clinical practice guideline and increased accountability to reduce potential patient harm led to a significant and sustained reduction in PN utilization, as well as decreased prevalence of PN as a risk factor in hospital CLABSI cases.
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Infecciones Relacionadas con Catéteres , Cateterismo Venoso Central , Sepsis , Infecciones Relacionadas con Catéteres/epidemiología , Infecciones Relacionadas con Catéteres/etiología , Infecciones Relacionadas con Catéteres/prevención & control , Cateterismo Venoso Central/efectos adversos , Niño , Niño Hospitalizado , Humanos , Nutrición Parenteral/efectos adversos , Mejoramiento de la Calidad , Estudios Retrospectivos , Sepsis/etiología , DesteteRESUMEN
BACKGROUND: Six thousand children are hospitalized each year in New Zealand with housing sensitive conditions, and 86.2% of these children are rehospitalized during childhood. The Healthy Homes Initiative, set up by the Ministry of Health, and implemented in Wellington through Well Homes, carries out housing assessments and delivers a range of housing interventions. METHOD: Housing assessments were carried out by trained community workers. Philanthropic funding was received for the interventions through a local charitable trust. RESULTS: Well Homes saw 895 families. Mold in the home was the most commonly recorded area of poor housing quality, in 836 homes (93%). Partial or complete lack of insulation was also common, with 452 records (51%) having a documented need for further assessment and either an upgrade or full installation. Eighty-three percent of homes had insufficient sources of heating. A total of 5,537 interventions were delivered. Bedding, heaters, and draft stopping were delivered over 90% of the time. In contrast, insulation and carpets were only delivered 40% of the time. Interventions were least likely to be delivered in private rental housing. DISCUSSION: Targeted interventions using social partnerships can deliver housing improvements for relatively little health spending. Well Homes provides immediate and practical interventions, education, connection with social agencies, and advocacy for more substantial structural home improvements to help families keep their home warmer, drier, and healthier. This approach will be strengthened when combined with a new regulatory framework to raise the standards of private rental housing.
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Vivienda , Niño , Humanos , Nueva ZelandaRESUMEN
The prevalence of autism continues to rise, yet the ability to receive treatment or caregiver training through traditional in-person methods continues to be a precluding factor for many families. Studies have shown that parent training provides benefits to caregivers and children through increased success of interventions, implementation, and generalization of skills. This study evaluated the effect of using technology for remote caregiver training of a token economy for use during routine non-preferred activities. A multiple-baseline design was implemented across two participants, through three phases. Additional surveys and interviews were conducted to evaluate social validity. Results revealed that caregivers acquired necessary skills to implement the fixed interval schedule of reinforcement with token system and participants reported experiencing greater positive interactions with the children. Limitations of this study included no data were collected on the children's behavior, nor were they trained on token economy use. Extraneous variables may have affected the results, such as unplanned household events. Results suggest that remote caregiver training can increase desirable interactions between caregiver and child, improve socially significant behaviors, and extend resources not typically available to all families.
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Patient transitions from inpatient to home care are an important area of focus for reducing costly unplanned hospital readmissions. In rural settings, the challenge of reducing unplanned readmissions is amplified by limited access to both ambulatory and acute care as well as high levels of social disadvantage. In addition, there is a scarcity of evidence regarding strategies that have been proven to improve care transitions and related patient outcomes in this setting. This paper describes the process for implementation and results of a telephone-based transitional care management (TCM) program designed to reduce readmissions for patients with diabetes in a rural hospital in Scotland County, North Carolina. Data were collected from July 2016 to January 2019 using billing records to identify adult patients with high or very high risk of readmission based on length of stay, acuity, comorbidity, and emergency department visits (LACE) scores. Care managers contacted eligible patients by phone after discharge to review discharge instructions, assess need for home health services and transportation assistance, and schedule primary care follow-up visits. Overall, 13.8% of 15,271 discharges were targeted for TCM; 68.2% of these involved a patient with diabetes. The post-intervention 30-day readmission rate was 18.0% among patients identified as high or very high risk versus 8.8% among the overall population and did not differ significantly between TCM participants with diabetes and those without (22.9% vs.18.8%; P = 0.525). Findings highlight challenges with implementing transition of care interventions in rural settings, which include staffing, patient volume, and accessing data from out-of-network providers.
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Diabetes Mellitus , Hospitales Rurales , Cuidado de Transición , Anciano , Diabetes Mellitus/epidemiología , Diabetes Mellitus/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , North Carolina , Readmisión del Paciente , Medición de RiesgoRESUMEN
Individuals diagnosed with intellectual and developmental disabilities (IDD) frequently exhibit self-injurious behavior (SIB). Previous research has examined the published literature on behavioral treatments of SIB from 1964-2000. Results suggested that these treatments were highly efficacious at decreasing SIB, particularly when based on the results of a functional assessment. The purpose of this review is to update, replicate, and extend the previous research. The current findings indicate an increase in studies reporting automatically maintained SIB as well as less efficacious treatments overall. Discussion of our conclusions and methods of SIB assessment and treatment are discussed, both as they relate to the previous review and for future directions.
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Terapia Conductista/estadística & datos numéricos , Discapacidades del Desarrollo/complicaciones , Discapacidad Intelectual/complicaciones , Conducta Autodestructiva/etiología , Conducta Autodestructiva/terapia , Adolescente , Adulto , Niño , Preescolar , Humanos , Lactante , Adulto JovenRESUMEN
Purpose: To identify the factors that have influenced dental hygienists to pursue post-graduate education opportunities, specifically dental (DDS, DMD) as compared to academic doctoral degrees, such as doctor of philosophy (PhD) or doctor of education (EdD).Methods: A convenience sample of dental hygienists with doctoral degrees were identified from multiple sources (n=140) and sent a 27-item web-based survey. Univariate logistic regression analysis was used to explore the influence of independent variables (respondents' demographic and personal characteristics, influential persons and experiences, encouraging and motivating factors) on the respondents' decision to pursue either a dental or an academic doctoral degree.Results: Of the 140 potential participants, 69 (n=69) responded (49% response rate): 17 dental degree respondents, 46 academic degree respondents. In contrast to academic degree respondents, those with dental degrees graduated from dental hygiene programs more recently (p=0.03), spent less time working as a dental hygienist (p=0.01), considered themselves mechanically inclined (p=0.03), and preferred to learn a new skill rather than read about a current research study (p=0.002). Both groups agreed that working one-on-one with people was important to career satisfaction. Dental degree respondents were more likely to have been influenced or encouraged to pursue dentistry by dentists (p=0.01) and family (p=0.004). Academic degree respondents were more likely to have had experiences with a researcher/scientist (p=0.004) or had been influenced by an educator (p=0.01). Only 40% of all respondents reported that dental hygiene instructors were instrumental in encouraging their advanced education.Conclusion: Dental hygienists possessing characteristics similar to the academic degree respondents in this study should be encouraged to pursue academic doctoral education, providing the necessary skills to advance the dental hygiene profession.
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Toma de Decisiones , Higienistas Dentales/educación , Higienistas Dentales/psicología , Educación de Posgrado en Odontología , Selección de Profesión , Estudios Transversales , Docentes de Odontología , Femenino , Humanos , Satisfacción en el Trabajo , Masculino , Mentores , MotivaciónRESUMEN
The incidence of tick-borne zoonoses such as Lyme disease has steadily increased in the southeastern United States. Southeastern states accounted for 1500 of over 28,000 confirmed cases of Lyme disease reported in the United States during 2015. Borrelia burgdorferi, the etiologic agent of Lyme disease, is maintained in small mammal reservoirs and vectored to new hosts by ixodid ticks. This study examined ecological relationships of the B. burgdorferi/vector/reservoir system in order to understand the dynamics of Lyme disease risk in Kentucky. Small mammals were captured using live traps from November 2014 to October 2015. Ticks were removed and blood and tissue collected from small mammals were screened for B. burgdorferi DNA by PCR with primers specific to the OspA gene. Prevalence of B. burgdorferi (21.8%) in Kentucky small mammals was comparable to the lowest recorded prevalence in regions where Lyme disease is endemic. Moreover, infestation of small mammals by Ixodes scapularis, the primary vector of B. burgdorferi, was rare, while Dermacentor variabilis comprised the majority of ticks collected. These findings provide ecological insight into the relative paucity of Lyme disease in Kentucky.
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Vectores Arácnidos/microbiología , Borrelia burgdorferi/aislamiento & purificación , Dermacentor/microbiología , Ixodes/microbiología , Enfermedad de Lyme/epidemiología , Animales , Antígenos de Superficie/genética , Arvicolinae/microbiología , Proteínas de la Membrana Bacteriana Externa/genética , Vacunas Bacterianas/genética , Borrelia burgdorferi/genética , Cartilla de ADN/genética , Humanos , Kentucky/epidemiología , Lipoproteínas/genética , Enfermedad de Lyme/microbiología , Enfermedad de Lyme/transmisión , Ratones , Reacción en Cadena de la Polimerasa , Prevalencia , Musarañas/microbiologíaRESUMEN
BACKGROUND The northern limits of Trypanosoma cruzi across the territory of the United States remain unknown. The known vectors Triatoma sanguisuga and T. lecticularia find their northernmost limits in Illinois; yet, earlier screenings of those insects did not reveal the presence of the pathogen, which has not been reported in vectors or reservoir hosts in this state. OBJECTIVES Five species of medium-sized mammals were screened for the presence of T. cruzi. METHODS Genomic DNA was isolated from heart, spleen and skeletal muscle of bobcats (Lynx rufus, n = 60), raccoons (Procyon lotor, n = 37), nine-banded armadillos (Dasypus novemcinctus, n = 5), Virginia opossums (Didelphis virginiana, n = 3), and a red fox (Vulpes vulpes). Infections were detected targeting DNA from the kinetoplast DNA minicircle (kDNA) and satellite DNA (satDNA). The discrete typing unit (DTU) was determined by amplifying two gene regions: the Spliced Leader Intergenic Region (SL), via a multiplex polymerase chain reaction, and the 24Sα ribosomal DNA via a heminested reaction. Resulting sequences were used to calculate their genetic distance against reference DTUs. FINDINGS 18.9% of raccoons were positive for strain TcIV; the rest of mammals tested negative. MAIN CONCLUSIONS These results confirm for the first time the presence of T. cruzi in wildlife from Illinois, suggesting that a sylvatic life cycle is likely to occur in the region. The analyses of sequences of SL suggest that amplicons resulting from a commonly used multiplex reaction may yield non-homologous fragments.
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Animales , Trypanosoma cruzi/genética , Enfermedad de Chagas/diagnóstico , Enfermedad de Chagas/veterinaria , Armadillos/parasitología , Lynx , ZorrosRESUMEN
BACKGROUND: The northern limits of Trypanosoma cruzi across the territory of the United States remain unknown. The known vectors Triatoma sanguisuga and T. lecticularia find their northernmost limits in Illinois; yet, earlier screenings of those insects did not reveal the presence of the pathogen, which has not been reported in vectors or reservoir hosts in this state. OBJECTIVES: Five species of medium-sized mammals were screened for the presence of T. cruzi. METHODS: Genomic DNA was isolated from heart, spleen and skeletal muscle of bobcats (Lynx rufus, n = 60), raccoons (Procyon lotor, n = 37), nine-banded armadillos (Dasypus novemcinctus, n = 5), Virginia opossums (Didelphis virginiana, n = 3), and a red fox (Vulpes vulpes). Infections were detected targeting DNA from the kinetoplast DNA minicircle (kDNA) and satellite DNA (satDNA). The discrete typing unit (DTU) was determined by amplifying two gene regions: the Spliced Leader Intergenic Region (SL), via a multiplex polymerase chain reaction, and the 24Sα ribosomal DNA via a heminested reaction. Resulting sequences were used to calculate their genetic distance against reference DTUs. FINDINGS: 18.9% of raccoons were positive for strain TcIV; the rest of mammals tested negative. MAIN CONCLUSIONS: These results confirm for the first time the presence of T. cruzi in wildlife from Illinois, suggesting that a sylvatic life cycle is likely to occur in the region. The analyses of sequences of SL suggest that amplicons resulting from a commonly used multiplex reaction may yield non-homologous fragments.
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Armadillos/parasitología , Enfermedad de Chagas/veterinaria , Zorros/parasitología , Lynx/parasitología , Zarigüeyas/parasitología , Mapaches/parasitología , Trypanosoma cruzi/aislamiento & purificación , Animales , Enfermedad de Chagas/diagnóstico , Illinois , Trypanosoma cruzi/genéticaRESUMEN
We conducted an exploratory RCT to examine feasibility and preliminary efficacy for a manual-based psychosocial group intervention aimed at improving epilepsy knowledge, self-management skills, and quality of life in young people with epilepsy. METHOD: Eighty-three participants (33:50m/f; age range 12-17years) were randomized to either the treatment or control group in seven tertiary paediatric neuroscience centres in the UK, using a wait-list control design. Participants were excluded if they reported suicidal ideation and/or scored above the cut off on mental health screening measures, or if they had a learning disability or other neurological disorder. The intervention consisted of six weekly 2-hour sessions using guided discussion, group exercises and role-plays facilitated by an epilepsy nurse and a clinical psychologist. RESULTS: At three month follow up the treatment group (n=40) was compared with a wait-list control group (n=43) on a range of standardized measures. There was a significant increase in epilepsy knowledge in the treatment group (p=0.02). Participants receiving the intervention were also significantly more confident in speaking to others about their epilepsy (p=0.04). Quality of life measures did not show significant change. Participants reported the greatest value of attending the group was: Learning about their epilepsy (46%); Learning to cope with difficult feelings (29%); and Meeting others with epilepsy (22%). Caregiver and facilitator feedback was positive, and 92% of participants would recommend the group to others. CONCLUSION: This brief psychosocial group intervention was effective in increasing participants' knowledge of epilepsy and improved confidence in discussing their epilepsy with others. We discuss the qualitative feedback, feasibility, strengths and limitations of the PIE trial.
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Adaptación Psicológica , Epilepsia/psicología , Epilepsia/terapia , Sistemas de Apoyo Psicosocial , Psicoterapia de Grupo/métodos , Autocuidado/psicología , Adolescente , Cuidadores/psicología , Niño , Epilepsia/diagnóstico , Femenino , Estudios de Seguimiento , Humanos , Aprendizaje , Masculino , Calidad de Vida/psicología , Autocuidado/métodosRESUMEN
The infection control (IC) practices of dental hygienists, who were practicing in states with and without mandatory continuing education (CE) related to IC, were compared using a nationwide survey approach. The percentages of respondents from states with mandated IC CE, who reported compliance with 8 practices described in the current IC guidelines and acquiring more CE units and taking more recent IC CE, were greater (P < .005) than the percentages of respondents from states without the requirement.
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Higienistas Dentales/educación , Educación Continua/normas , Control de Infecciones/métodos , Estudios Transversales , Recolección de Datos , Humanos , Internet , Encuestas y CuestionariosRESUMEN
The current research examines Colorado's experience implementing evidence-based mandated treatment Standards, which use a uniform risk assessment, differentiated treatment levels, offender competencies, and a multidisciplinary treatment team (MTT) composed of a victim advocate, probation officer, and treatment provider to manage offender treatment. Using data from MTT member surveys (n = 107) and follow-up interviews (n = 14), the study investigates perceptions of implementation and treatment fidelity, MTT decision making and communication, and the process of successful treatment completion. Results demonstrate that full implementation of Colorado's standards for domestic violence treatment has not yet been achieved and that many MTT members report challenges to communication and decision making regarding offender treatment plans and successful achievement of competencies. Recommendations for further improvements in Colorado's domestic violence treatment model are made and directions for future research are discussed.
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Maltrato a los Niños/prevención & control , Adhesión a Directriz , Implementación de Plan de Salud/organización & administración , Servicios Preventivos de Salud/organización & administración , Maltrato Conyugal/prevención & control , Violencia/prevención & control , Adulto , Niño , Colorado , Intervención en la Crisis (Psiquiatría) , Femenino , Regulación Gubernamental , Humanos , Comunicación Interdisciplinaria , Relaciones Interinstitucionales , Masculino , Persona de Mediana EdadRESUMEN
Routine supplementation of iodine in parenteral nutrition (PN) solutions is not current practice in the United States. In this case study, we describe an incidental finding of goiter in a long-term PN-dependent adolescent. With increased iodine screening, we then identified additional patients with undetectable urinary iodine concentrations in our population of children with short bowel receiving long-term PN. We hypothesize that 2 practice changes are possibly reducing iodine provision to long-term PN-dependent patients: transition to alcohol-based skin preparations and lipid minimization.
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Seudoobstrucción Intestinal/terapia , Yodo/deficiencia , Nutrición Parenteral , Adolescente , Suplementos Dietéticos , Bocio/complicaciones , Bocio/diagnóstico , Humanos , Seudoobstrucción Intestinal/complicaciones , Yodo/administración & dosificación , Yodo/orina , Masculino , Tiroxina/uso terapéuticoRESUMEN
Purpose: To assess the perceptions and attitudes of dental hygiene (DH) educators at selected colleges and universities regarding the establishment of doctoral educational programs in DH in the United States.Methods: An online survey of DH educators at the 58 U.S. schools offering baccalaureate or master's degree programs was used to assess participants' perceptions and attitudes regarding the following: need to establish doctoral programs in DH, interests in supporting their development, potential barriers and facilitators, and goals/motivators of potential enrollees. Percentages of respondents selecting each response were calculated for each survey item and responses of selected items analyzed for significant differences.Results: Of 608 potential participants, 203 completed the survey for a 33% response rate. More than half the respondents strongly agreed and a quarter more agreed that a DH doctoral program was needed to relate equitably with doctoral graduates of other health-related disciplines and to expand the DH body of knowledge by conducting discipline-specific research. A majority indicated likely interest in supporting the development of both clinically oriented and research-based doctoral programs. Significantly (p<0.01) more respondents with doctorates were interested in developing doctoral programs than those with a master's degree as their terminal degree. Respondents identified shortages of qualified educators and interested enrollees as primary barriers. Facilitators included support from the American Dental Education Association and the American Dental Hygienists' Association. Becoming a better researcher and an institutional administrator were perceived as chief motivations.Conclusion: The majority of DH educators perceived that doctoral educational programs in DH are needed to advance the DH profession.
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Higienistas Dentales/educación , Humanos , Higiene Bucal , Percepción , Encuestas y CuestionariosRESUMEN
We investigated whether Strongyloides infection remains endemic in rural Kentucky's Appalachian regions; 7 of 378 (1.9%) participants tested positive for Strongyloides antibodies. We identified no statistically significant association between a positive test and travel to a known endemic country (P = 0.58), indicating that transmission in rural Kentucky might be ongoing.
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Anticuerpos Antihelmínticos/sangre , Strongyloides stercoralis/inmunología , Estrongiloidiasis/epidemiología , Adolescente , Adulto , Anciano , Animales , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Kentucky/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Población Rural , Estrongiloidiasis/sangre , Estrongiloidiasis/inmunología , Adulto JovenRESUMEN
BACKGROUND: Parenteral nutrition (PN) is a lifesaving therapy for children with intestinal failure and can now be used chronically without the life-threatening complications of the past. Adequate intravenous trace element supplementation is required as part of a complete nutrition prescription. According to the U.S. Food and Drug Administration (FDA), the number of drug shortages, including sterile injectable agents used as PN components, has increased since 2010. Selenious acid as an individual additive was recently unavailable at our institution for 9 months due to a national shortage. MATERIALS AND METHODS: To assess the impact of the selenious acid shortage, we retrospectively compiled data from existing clinical records for eligible patients. We included children with intestinal failure on full PN support who were older than 1 year at the onset of the selenium shortage. Whole-blood selenium concentrations prior to the selenious acid shortage were compared with concentrations drawn during the shortage. RESULTS: Five patients with intestinal failure and complete PN dependence were identified, and all 5 patients had normal serum selenium concentrations prior to the shortage. All 5 patients developed severe biochemical selenium deficiency in direct correlation with the shortage of selenium. No morbidity associated with selenium deficiency was observed. Selenium concentrations recovered after selenium supplementation was reinstituted. CONCLUSION: A national selenious acid shortage was associated with biochemical selenium deficiency in a cohort of children with intestinal failure. Despite very low selenium concentrations, none of our patients exhibited clinical signs of deficiency.
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Enfermedades Intestinales/sangre , Soluciones para Nutrición Parenteral/provisión & distribución , Selenio/deficiencia , Selenio/provisión & distribución , Adolescente , Preescolar , Suplementos Dietéticos , Femenino , Humanos , Enfermedades Intestinales/tratamiento farmacológico , Masculino , Nutrición Parenteral/métodos , Estudios Retrospectivos , Ácido Selenioso/administración & dosificación , Selenio/administración & dosificación , Selenio/sangre , Oligoelementos/administración & dosificación , Oligoelementos/sangre , Oligoelementos/provisión & distribución , Resultado del TratamientoRESUMEN
Feline cytauxzoonosis is a rapidly progressing and usually fatal disease in domestic cats caused by the tick-borne pathogen, Cytauxzoon felis. The primary reservoir host for this protozoan parasite is the bobcat (Lynx rufus). In this retrospective study, we have examined the positive cases of feline cytauxzoonosis identified at Murray State University's Breathitt Veterinary Center, a regional diagnostic facility located in Hopkinsville, Kentucky, between January 2001 and December 2011. Center records reveal that there has been an increase in the rate of diagnosis of domestic feline infection with C. felis over that 10-year span with the majority of cases (75%) occurring between 2006 and 2011. The infection was diagnosed from March through October and showed a single peak in May, corresponding well with the questing period for the lone star tick, Amblyomma americanum, a known vector of C. felis.
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Enfermedades de los Gatos/parasitología , Piroplasmida/aislamiento & purificación , Animales , Enfermedades de los Gatos/epidemiología , Gatos , Ixodidae , Kentucky/epidemiología , Infecciones Protozoarias en Animales/epidemiología , Infecciones Protozoarias en Animales/parasitología , Estaciones del Año , Factores de TiempoRESUMEN
Plumbagin (1) is a naphthoquinone constituent of plants that have been used in traditional systems of medicine since ancient times. In the present study, the role of 1 was examined on the amelioration of ulcerative colitis, an inflammatory bowel disease that is not curable currently. Plumbagin was tested at a dose of 6-10 mg/kg body weight in acute and chronic disease models. Diseased mice receiving 1 at 8-10 mg/kg demonstrated a significant suppression of disease symptoms in both models. However, body weight loss was not restored in either of the models. Levels of proinflammatory cytokines (TNF-α, IFN-γ, and IL-17) were reduced significantly by 1 in mice suffering from chronic disease, while cytokine levels remained unaffected in mice with acute disease. However, the percentage of inflammatory (CD14+/CD16+) monocytes present in peripheral blood was significantly reduced by >3-fold (p < 0.05) in treatment groups relative to controls in the acute model. Histological evaluations exhibited the restoration of goblet cells, crypts, and the submucosa along with a significant reduction in monocyte aggregation in colon sections from mice receiving treatment with 1. Restoration in colon size was also observed in the treatment groups.
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Colitis Ulcerosa/patología , Naftoquinonas/uso terapéutico , Animales , Colitis Ulcerosa/tratamiento farmacológico , Colon/efectos de los fármacos , Citocinas/sangre , Citocinas/uso terapéutico , Modelos Animales de Enfermedad , Interleucina-17/sangre , Interleucina-17/uso terapéutico , Masculino , Ratones , Estructura Molecular , Naftoquinonas/sangre , Naftoquinonas/farmacología , Factor de Necrosis Tumoral alfa/sangre , Factor de Necrosis Tumoral alfa/uso terapéuticoRESUMEN
Baylisascaris procyonis is an intestinal nematode of raccoons (Procyon lotor) that can cause fatal larval migrans in numerous species of birds and mammals, including humans. Although this parasite has historically been absent in the southeastern United States, it has been found in isolated regions in the Appalachian Mountains and was recently documented in DeKalb County, Georgia. The first objective of the current study was to investigate the distribution and prevalence of B. procyonis in selected populations of raccoons in Georgia. Intestinal tracts of 312 raccoons from 25 Georgia counties were examined for B. procyonis. The only county where B. procyonis was detected was Clarke County, where 12 of 116 (10.3%) raccoons were infected. In Clarke County, significantly more juveniles (P â=â 0.049) were infected compared with adults, and no differences in prevalence were noted by sex, season of capture, or land use (rural vs. urban); however, significantly (P â=â 0.0370) higher worm burdens were found in infected raccoons from urban/suburban locations compared with rural areas. In addition, Toxascaris leonina , a morphologically similar ascarid, was found in 3 raccoons from Clarke County (n â=â 2) and Morgan County (n â=â 1). A second objective was to determine if sequence polymorphisms were associated with B. procyonis from different geographic regions. Because sequences from a single worm from Japan had been entered into GenBank, we obtained nematodes from Kentucky and Texas for comparison with our samples from Georgia. Sequence analysis of the 18S and 5.8S rRNA genes and the internal transcribed spacer (ITS) -1 and ITS-2 regions confirmed Georgia samples were B. procyonis. Although several polymorphic bases were observed within both ITS regions, none was associated with a particular geographic location. These data indicate that the distribution of B. procyonis within Georgia is increasing and only limited genetic variation is present in the rRNA and ITS gene regions among B. procyonis from the southern United States and introduced populations in Japan.