Azithromycin and moxifloxacin resistance determinants in Mycoplasma genitalium in Lleida, Spain.

OBJECTIVE: Mycoplasma genitalium (MG) is a microorganism related to sexually transmitted infections. Antibiotic resistance of MG leads to an increase in treatment failure rates and the persistence of the infection. The aim of this study was to describe the most frequent mutations associated with azithromycin and moxifloxacin resistance in our geographical area. METHODS: A prospective study from May 2019 to May 2023 was performed. MG-positive samples were collected. Real-time PCRs (AllplexTM MG-AziR Assay and AllplexTM MG-MoxiR Assay, Seegene) were performed in MG positive samples to detect mutations in 23S rRNA V domain and parC gene. RESULTS: A 37.1% of samples presented resistance determinants to azithromycin and the most common mutation detected was A2059G (57.9%). Resistance to moxifloxacin was studied in 72 azithromycin-resistant samples and 36.1% showed mutations, being G248T the most prevalent (73.1%). CONCLUSIONS: The resistance to different lines of treat ment suggests the need for a targeted therapy and the performing of a test of cure afterwards.

Emphysematous osteomyelitis: a rare and aggressive disease.

Emphysematous osteomyelitis is an extremely rare entity consisting of the presence of intraosseous gas that can extend to the joints and adjacent soft tissues. It is an aggressive infectious process associated with high mortality, especially in patients with risk factors such as tumors or diabetes mellitus. Because early diagnosis and immediate treatment are crucial to prevent the potentially devastating consequences of this condition, imaging tests such as computed tomography play a fundamental role in its diagnosis and management. Therefore, radiologists must be aware that intraosseous gas is a rare but alarming sign that is pathognomonic of emphysematous osteomyelitis, especially in the axial skeleton.

Revisión sobre el estigma en salud mental en población militar / Review on the stigma associated with mental health problems in the current military context

Objetivo: Realizar una revisión sobre el estigma asociado a los problemas de salud mental en el contexto militar. Método: Se realizó una revisión sistemática de la literatura empleando las bases de datos PubMed, Psycinfo y Scielo con las palabras clave mental health, stigma y military personnel desde 2016 hasta 2022. Resultados: Se obtuvieron un total de 84 artículos potencialmente relevantes, y tras la aplicación de los criterios de inclusión, se seleccionaron los 22 artículos sobre los que se analizan los resultados (n=31789) y se extraen las conclusiones. Conclusiones: El estigma asociado a los problemas de salud mental es un fenómeno que dificulta la búsqueda de ayuda psicológica para resolverlos. Se encuentra mayor presencia de este estigma en la población militar que en la civil, y mayor reticencia a buscar tratamiento. Se han identificado variables que actúan facilitando o dificultando la decisión de buscar ayuda profesional en la población militar. Algunos ejércitos están implementando campañas anti-estigma. No se encontraron estudios realizados en las Fuerzas Armadas Españolas. (AU)

Objective: To conduct a review on the stigma associated with mental health problems in the current military context. Methods: A systematic review of the literature was carried out using the databases PubMed, Psycinfo and Scielo with the keywords “mental health”, “stigma” and “military personnel” from 2016 to 2022. Results: A total of 84 potentially relevant articles were obtained, and after applying the inclusion criteria, the 22 articles on which the results are analyzed (n=31789) were selected and conclusions are drawn. Conclusions: The stigma associated with mental health problems is a phenomenon that hinders the search for psychological help to solve them. This stigma is found to be more prevalent in the military population than in the civilian population, and there is greater reluctance to seek treatment. Variables have been identified that facilitate or hinder the decision to seek professional help in the military population. Some armies are implementing anti-stigma campaigns. No studies were found in the Spanish Armed Forces. (AU)

Revisión sobre el estigma en salud mental en población militar / Review on the stigma associated with mental health problems in the current military context

Objetivo: Realizar una revisión sobre el estigma asociado a los problemas de salud mental en el contexto militar. Método: Se realizó una revisión sistemática de la literatura empleando las bases de datos PubMed, Psycinfo y Scielo con las palabras clave mental health, stigma y military personnel desde 2016 hasta 2022. Resultados: Se obtuvieron un total de 84 artículos potencialmente relevantes, y tras la aplicación de los criterios de inclusión, se seleccionaron los 22 artículos sobre los que se analizan los resultados (n=31789) y se extraen las conclusiones. Conclusiones: El estigma asociado a los problemas de salud mental es un fenómeno que dificulta la búsqueda de ayuda psicológica para resolverlos. Se encuentra mayor presencia de este estigma en la población militar que en la civil, y mayor reticencia a buscar tratamiento. Se han identificado variables que actúan facilitando o dificultando la decisión de buscar ayuda profesional en la población militar. Algunos ejércitos están implementando campañas anti-estigma. No se encontraron estudios realizados en las Fuerzas Armadas Españolas. (AU)

Objective: To conduct a review on the stigma associated with mental health problems in the current military context. Methods: A systematic review of the literature was carried out using the databases PubMed, Psycinfo and Scielo with the keywords “mental health”, “stigma” and “military personnel” from 2016 to 2022. Results: A total of 84 potentially relevant articles were obtained, and after applying the inclusion criteria, the 22 articles on which the results are analyzed (n=31789) were selected and conclusions are drawn. Conclusions: The stigma associated with mental health problems is a phenomenon that hinders the search for psychological help to solve them. This stigma is found to be more prevalent in the military population than in the civilian population, and there is greater reluctance to seek treatment. Variables have been identified that facilitate or hinder the decision to seek professional help in the military population. Some armies are implementing anti-stigma campaigns. No studies were found in the Spanish Armed Forces. (AU)

Influence of telomerase activity and initial distribution on human follicular aging: Moving from a discrete to a continuum model.

A discrete model is proposed for the temporal evolution of a population of cells sorted according to their telomeric length. This model assumes that, during cell division, the distribution of the genetic material to daughter cells is asymmetric, i.e. chromosomes of one daughter cell have the same telomere length as the mother, while in the other daughter cell telomeres are shorter. Telomerase activity and cell death are also taken into account. The continuous model is derived from the discrete model by introducing the generational age as a continuous variable in [0,h], being h the Hayflick limit, i.e. the number of times that a cell can divide before reaching the senescent state. A partial differential equation with boundary conditions is obtained. The solution to this equation depends on the initial telomere length distribution. The initial and boundary value problem is solved exactly when the initial distribution is of exponential type. For other types of initial distributions, a numerical solution is proposed. The model is applied to the human follicular growth from preantral to preovulatory follicle as a case study and the aging rate is studied as a function of telomerase activity, the initial distribution and the Hayflick limit. Young, middle and old cell-aged initial normal distributions are considered. In all cases, when telomerase activity decreases, the population ages and the smaller the h value, the higher the aging rate becomes. However, the influence of these two parameters is different depending on the initial distribution. In conclusion, the worst-case scenario corresponds to an aged initial telomere distribution.

Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins.

The effect of the ZrO2 content on the performance (activity, selectivity, stability) of In2O3-ZrO2 catalyst has been studied on the hydrogenation of CO2/CO mixtures. This effect is a key feature for the viability of using In2O3-ZrO2/SAPO-34 tandem catalysts for the direct conversion of CO2 and syngas into olefins via oxygenates as intermediates. The interest of co-feeding syngas together with CO2 resides in jointly valorizing syngas derived from biomass or wastes (via gasification) and supplying the required H2. The experiments of methanol synthesis and direct synthesis of olefins, with In2O3-ZrO2 and In2O3-ZrO2/SAPO-34 catalysts, respectively, have been carried out under the appropriate conditions for the direct olefins synthesis (400 °C, 30 bar, H2/COX ratio = 3) in an isothermal fixed bed reactor at low space time values (kinetic conditions) to evaluate the behavior and deactivation of the catalysts. The Zr/In ratio of 1/2 favors the conversion of CO2 and COX, attaining good oxygenates selectivity, and prevents the sintering attributable to the over-reduction of the In2O3 (more significant for syngas feeds). The improvement is more remarkable in the direct olefins synthesis, where the thermodynamic equilibrium of methanol formation is displaced, and methanation suppressed (in a greater extent for feeds with high CO content). With the In2O3-ZrO2/SAPO-34 tandem catalysts, the conversion of COx almost 5 folds respect oxygenates synthesis with In2O3-ZrO2 catalyst, meaning the yield of the target products boosts from ∼0.5% of oxygenates to >3% of olefins (selectivity >70%) for mixtures of CO2/COX of 0.5, where an optimum performance has been obtained.

Afectación pulmonar en la enfermedad de Rendu-Osler-Weber: diagnóstico radiológico / Pulmonary involvement in Rendu-Osler-Weber disease: radiological diagnosis

La telangiectasia hemorrágica hereditaria (THH) o síndrome de Rendu-Osler-Weber es un trastorno sistémico infrecuente,con transmisión autosómica dominante, asociado con malformaciones vasculares pulmonares. Los síntomas más comunesincluyen telangiectasias cutáneas y mucosas, epistaxis, hemorragias gastrointestinales, pulmonares e intracerebrales. Sudiagnóstico clínico se realiza mediante los criterios de Curaçao, siendo fundamentales las pruebas de imagen tales como latomografía computarizada (TC) de tórax para el diagnóstico de las malformaciones arteriovenosas pulmonares. El tratamientoincluye medidas para el manejo de la epistaxis, así como escisión quirúrgica, radioterapia y embolización de malformacionesarteriovenosas, con énfasis en el tratamiento endovascular.(AU)

Hereditary hemorrhagic telangiectasia (HHT), or Rendu-Osler-Weber syndrome, is a rare disorder, autosomal dominant,that is closely linked to the development of pulmonary arteriovenous malformations. Most common symptoms include skin andmucosal telangiectasias, epistaxis, gastrointestinal, pulmonary and intracerebral bleeding. It clinical diagnosis is performedusing the Curaçao criteria, and imaging tests such as chest computed tomography (CT) are essential for the diagnosis of pul-monary arteriovenous malformations. Treatment includes measures for management of epistaxis, as well as surgical excision,radiotherapy and embolization of arteriovenous malformations, with emphasis on endovascular treatment.(AU)

¿Cuáles son los conflictos éticos más frecuentes para los internistas españoles? / Which are the most prevalent ethical conflicts for Spanish internists?

Antecedentes y objetivo Los clínicos se enfrentan en su práctica diaria a multitud de conflictos éticos. No hay estudios sobre los tipos de conflictos éticos que se encuentran con más frecuencia y que preocupan más a los clínicos en España. El objetivo de este estudio es describir los conflictos éticos más frecuentes con los que se encuentran los internistas españoles, así como la importancia que los profesionales atribuyen a cada conflicto. Materiales y métodos Estudio observacional transversal a través de una encuesta voluntaria y anónima, dirigida a médicos internistas españoles y distribuida a través de una plataforma ad hoc de la Sociedad Española de Medicina Interna. Resultados Los problemas éticos más frecuentes y relevantes para los internistas españoles son los relacionados con: el final de la vida (decisiones de limitación del esfuerzo terapéutico, uso de tratamientos paliativos, instauración de órdenes de no reanimación cardiopulmonar); los conflictos que se producen en el seno de la relación clínica, bien con familiares o con pacientes, y la toma de decisiones con pacientes incompetentes. Estos resultados son similares a los de otras series anglosajonas y europeas. Los problemas éticos dificultan más la actividad asistencial a los clínicos que perciben con más frecuencia dichos problemas (50,3%) que los que no los perciben (16%). Conclusiones Los conflictos éticos más frecuentes y relevantes entre los internistas españoles son los relacionados con el manejo del final de la vida, seguidos de los derivados de la relación clínica y el manejo de pacientes incompetentes. Es prioritario diseñar programas de formación que permitan abordar y reconocer mejor dichos problemas (AU)

Background and objective Clinicians face a multitude of ethical conflicts in their daily practice. There have been no studies on the types of ethical conflicts encountered most frequently and that are of most concern to clinicians in Spain. The aim of this study is to report the most common ethical conflicts faced by Spanish internists, as well as the importance that the practitioners attribute to each conflict. Materials and Methods Our observational cross-sectional study employed a voluntary and anonymous survey aimed at Spanish medical internists and distributed through an ad hoc platform of the Spanish Society of Internal Medicine. Results The most common and relevant ethical issues for Spanish internists are related to patients’ end of life (decisions limiting therapeutic effort, use of palliative treatments, the establishment of do-not-resuscitate orders), the conflicts arising within the doctor-patient/family relationship, and making decisions with noncompetent patients. These results are similar to those of other English and European series. The ethical problems further complicate the healthcare activity of clinicians who more often notice these problems (50.3%) than those who do not notice them (16%). Conclusions The most common and relevant ethical conflicts among Spanish internists are related to managing patients’ end of life, followed by those related to the doctor-patient relationship and the management of noncompetent patients. It is essential that training programs be designed to better address and recognise these problems (AU)

Which are the most prevalent ethical conflicts for Spanish internists?

BACKGROUND AND OBJECTIVE: Clinicians face a multitude of ethical conflicts in their daily practice. There have been no studies on the types of ethical conflicts encountered most frequently and that are of most concern to clinicians in Spain. The aim of this study is to report the most common ethical conflicts faced by Spanish internists, as well as the importance that the practitioners attribute to each conflict. MATERIALS AND METHODS: Our observational cross-sectional study employed a voluntary and anonymous survey aimed at Spanish medical internists and distributed through an ad hoc platform of the Spanish Society of Internal Medicine. RESULTS: The most common and relevant ethical issues for Spanish internists are related to patients' end of life (decisions limiting therapeutic effort, use of palliative treatments, the establishment of do-not-resuscitate orders), the conflicts arising within the doctor-patient/family relationship, and making decisions with noncompetent patients. These results are similar to those of other English and European series. The ethical problems further complicate the healthcare activity of clinicians who more often notice these problems (50.3%) than those who do not notice them (16%). CONCLUSIONS: The most common and relevant ethical conflicts among Spanish internists are related to managing patients' end of life, followed by those related to the doctor-patient relationship and the management of noncompetent patients. It is essential that training programs be designed to better address and recognise these problems.

Mathematical modelling of ageing acceleration of the human follicle due to oxidative stress and other factors.

There is a gradual telomere shortening due to the inability of the replication machinery to copy the very ends of chromosomes. Additionally, other factors such as high levels of oxidation (free radicals or reactive oxygen species (ROS)), e.g. due to cumulated stress, inflammation or tobacco smoke, accelerate telomere shortening. In humans, the average telomere length is about 10-15 kb at birth and telomeres shorten at a pace of 70 bp per year. However, when cells are exposed to ROS, telomere attrition happens at a faster pace, generating a wide variety of telomere size distribution in different length percentiles, which are different to what is expected just by age. In this work, the generational age of a cell is associated with its telomere length (TL), from certain maximum to the minimal TL that allows replication. In order to study the accumulation of aged granulosa cells in human follicles, from preantral to preovulatory size, a mathematical model is proposed, regarding different degrees of accelerated telomere shortening, which reflect the action of ROS in addition to the telomere shortening that happens after cell division. In cases of cells with TL shorter than cells with average TL, with low telomerase activity and accelerated telomere shortening, the mathematical model predicts an aged outcome in preovulatory follicles. The model provides a plausible explanation for what has been observed in oocytes from older women, which have been exposed to ROS for a longer period of time and have bad outcomes after in vitro fertilization.

Relación entre niveles plasmáticos de efavirenz y alteraciones lipémicas / Efavirenz plasma levels and dyslipidemia

El objetivo del presente trabajo es evaluar si existe relación entre los niveles plasmáticos de efavirenz y la aparición de dislipemia como hipercolesterolemia, hipretrigliceridemia o aumento de LDL-c.Se realizaron niveles plasmáticos de efavirenz a los pacientes en tratamiento con este fármaco desde septiembre de 2012 hasta junio de 2015. Se registraron los parámetros lipídicos correspondientes a cada analítica. Las determinaciones de efavirenz se realizaron mediante cromatografía líquida de alta eficacia. Los datos se manejaron mediante el programa Quick Statistics Calculator y Excel 2007.Los niveles plasmáticos de efavirenz superiores a 4.000 ng/ml se asocian en nuestro estudio con una mayor frecuencia de niveles de colesterol superiores a 200 mg/dl.Este estudio puede ser de utilidad para aquellas zonas en las que usen pautas de tratamiento con este fármaco de manera frecuente. (AU)

The aim of this study is to evaluate if there is a relationship between plasma levels of efavirenz and the occurrence of dyslipidemia such as hypercholesterolemia, hypretrigiceridemia or increased LDL-c.Plasma levels of efavirenz were performed to patients under treatment with this drug during the period from September 2012 to June 2015. Lipid parameters corresponding to each analytical were recorded. Determinations of efavirenz were analyzed by high performance liquid chromatography. Data were managed using the Quick Statistics Calculator and Excel 2007 program.Plasma levels of efavirenz higher than 4,000 ng/ml were associated, in our study, with a higher frequency of cholesterol levels higher than 200 mg/dl.This study may be useful to those areas where treatment guidelines with this drug are used on a frequent basis. (AU)

Which are the most prevalent ethical conflicts for Spanish internists? / ¿Cuáles son los conflictos éticos más frecuentes para los internistas españoles?

BACKGROUND AND OBJECTIVE: Clinicians face a multitude of ethical conflicts in their daily practice. There have been no studies on the types of ethical conflicts encountered most frequently and that are of most concern to clinicians in Spain. The aim of this study is to report the most common ethical conflicts faced by Spanish internists, as well as the importance that the practitioners attribute to each conflict. MATERIALS AND METHODS: Our observational cross-sectional study employed a voluntary and anonymous survey aimed at Spanish medical internists and distributed through an ad hoc platform of the Spanish Society of Internal Medicine. RESULTS: The most common and relevant ethical issues for Spanish internists are related to patients' end of life (decisions limiting therapeutic effort, use of palliative treatments, the establishment of do-not-resuscitate orders), the conflicts arising within the doctor-patient/family relationship, and making decisions with noncompetent patients. These results are similar to those of other English and European series. The ethical problems further complicate the healthcare activity of clinicians who more often notice these problems (50.3%) than those who do not notice them (16%). CONCLUSIONS: The most common and relevant ethical conflicts among Spanish internists are related to managing patients' end of life, followed by those related to the doctor-patient relationship and the management of noncompetent patients. It is essential that training programs be designed to better address and recognise these problems.

[Telemedicine, prison and illness associated with HIV]. / Telemedicina, centros penitenciarios y enfermedad por VIH.

OBJECTIVE: Communicate the activity of telemedicine, from its opening, between a hospital consultation of infectious diseases and a penitentiary center. METHODS: Descriptive study of the tele-consultation of infectious diseases of the Alcorcón Foundation University Hospital with the Navalcarnero penitentiary center from 2013 to 2017, which is carried out by videoconference. The reason and number of consultations, diagnosis of HIV, antiretroviral treatment (ART), immunovirological situation, diagnosis of hepatitis C virus (HCV= and intervention performed by the infectious expert were analyzed. RESULTS: A total of 75 patients were evaluated in a total of 168 consultations (in the first year 11 consultations and in the fifth year 62). The index of successive / new consultations was 1.24 and 85% of the patients required less than 1 year of follow-up. 84% of patients did not move to the hospital. 99% of patients accepted this modality. 96% were HIV positive, 94% of them took ART and 85% had undetectable viral load with 532 CD4/mL of medium. 90% had positive serology for HCV. 72% of the consultations were for the assessment of HCV treatment, which was sofosbuvir/ledipasvir by 63%. 40% changed their ART (70% to avoid interactions). CONCLUSIONS: Most of the evaluated patients have HIV infection. This type of consultation has a growing demand, is efficient (avoids transfers and is decisive) and has high acceptance. The most frequent reason for consultation was the treatment of HCV and more than a third of patients required ART change.

Mathematical model to study the aging of the human follicle according to the telomerase activity.

The aim of this work is to study the aging rate at which human follicles reach the preovulatory state. To this end, both telomere length and telomerase activity effects on granulosa cells (GCs) aging has been studied. GCs are somatic cells which determine the development of the oocyte. A human preantral follicle takes approximately 85 days to achieve the preovulatory size, going through several stages (Gougeon, 1996). The telomere length of GCs of each class of follicles, during folliculogenesis, are modelled using a chemical master equation formalism similar to the one in Wesch et al. (2016). Seven differential ordinary systems of equations, corresponding to seven stages of the follicule maturation, concatenated in time, are considered. The mitotic and death rates are approximated by using the mean number of GCs in each class of follicles and the time they remain on each stage. The influence of different telomerase activity rates and the telomere shortening of the preovulatory follicle is studied. Some cases of infertility are associated with low levels of telomerase activity and short telomeres in GCs. The method aims at understanding how low levels of telomerase activity in preovulatory stages lead to the accumulation of aged GCs. In the case of higher telomerase activities, the mathematical model predicts a more juvenile outcome in preovulatory follicles. Juvenile GCs, could be critical for embryo development if the oocyte were fertilized, since GCs, transformed in corpus luteum, must divide and increase their size (Alila and Hansel, 1984) to sustain early pregnancy (Csapo et al., 1972).

¿Qué opinan los pacientes mayores y sus familiares sobre la limitación del esfuerzo terapéutico? / What do older patients and their families think about the limitation of therapeutic effort?

No disponible

'Candidatus Neoehrlichia mikurensis' in Europe.

'Candidatus Neoehrlichia mikurensis' is an uncultured emerging bacterium that is provisionally included in the family Anaplasmataceae. In Europe, it is transmitted by Ixodes ricinus ticks. Rodents are the reservoirs. It is widely distributed in mammals (both wild and domestic) and birds. It causes an inflammatory disease in humans with underlying diseases, but the microorganism also affects immunocompetent individuals in which asymptomatic infection has been recognized. A high degree of suspicion and the use of molecular tools are needed for the correct diagnosis. Efforts to cultivate it and to investigate its pathogenesis should be a priority.

Experience and Security of the Hand-Assisted Laparoscopic Nephrectomy of a Living Donor in a Public Health Center.

BACKGROUND: Hand-assisted laparoscopic nephrectomy (HALDN) is currently the procedure of choice for obtaining living donor kidneys for transplantation. In our institution, it has been the standard procedure for 5 years. Previous studies have shown the same function of the graft as that obtained by open surgery, with a lower rate of bleeding and no differences in complications. We sought to demonstrate the experience and safety of HALDN compared with open donor nephrectomy in healthy donors for kidney transplantation. METHODS: A retrospective analytical observational study was conducted, reviewing the records of the living donors for kidney transplant undergoing open donor nephrectomy or HALDN in our center from March 1, 2009, to March 1, 2016. Renal function was assessed by the estimated glomerular filtration rate by the Modification of Diet in Renal Disease method before and after donation, as well as bleeding (mL), and complications (according to Clavien), performing a comparative analysis between the two techniques using parametric or nonparametric tests. RESULTS: A total of 179 living donor nephrectomies were performed during the study period-31 open donor nephrectomy (17.3%) and 148 HALDN (82.7%)-without relevant baseline differences, except for creatinine. HALDN has a shorter surgical time (156,473 ± 87.75 minutes vs 165,484 ± 69.95 minutes) and less bleeding (244.59 ± 416.08 mL vs 324.19 ± 197.986 mL) and a shorter duration of hospital stay (3.74 ± 1.336 days vs 4.75 ± 1.226 days). There were no significant differences in surgical complications at 30 days, or graft loss reported; there were 3 conversions (1.7%) from the HALDN to the open technique. There were no differences in renal function in the donors or recipients at the 5th day or the month after surgery. CONCLUSIONS: Laparoscopic nephrectomy has replaced open surgery as the gold standard for living kidney donors. HALDN is a safe and feasible procedure when compared with open donor nephrectomy, achieving a shorter surgical time with less bleeding, and no difference in the number of complications. This procedure lowers costs by decreasing the duration of the hospital stay, making is feasible to perform it at any institution with appropriately trained personnel.

Isolation of Rickettsia amblyommatis in HUVEC line.

Rickettsia amblyommatis, formerly named Rickettsia amblyommii and 'Candidatus Rickettsia amblyommii' is an intracellular bacterium belonging to the spotted fever group Rickettsia. It is highly prevalent in Amblyomma americanum and in other Amblyomma spp. throughout the Western Hemisphere. R. amblyommatis has been cultivated in chicken fibroblast, primary embryonated chicken eggs, Vero cells and arthropod-derived cells. Because of the affinity of rickettsiae to invade vascular endothelial cells, we tried to isolate R. amblyommatis from a nymph of Amblyomma cajennense s.l. collected in Saltillo (Coahulia, Mexico) using human umbilical vein endothelial cells (HUVEC). One tick half was analysed by ompA PCR and was found to be positive for R. amblyommatis. The other half was selected for in vitro culture of Rickettsia spp. It was triturated in 1 mL of endothelial cell growth medium with 1% antibiotic-antimycotic solution, and the homogenate was inoculated into a HUVEC line. Culture was maintained at 33°C in endothelial cell growth medium plus 2 mM l-glutamine and 2% fetal calf serum, with 5% CO2. The medium was changed weekly. Culture was checked by Gimenez stain for Rickettsia-like intracellular organisms. After 48 days of incubation, Rickettsia-like organisms were observed in HUVEC. PCR assays and sequencing of ompA gene in the culture suspension showed 100% identity with R. amblyommatis. This isolate was successfully established in HUVEC, and it has been deposited in the collection of the Center of Rickettsioses and Arthropod-Borne Diseases, Infectious Diseases Department, Hospital San Pedro-Center of Biomedical Research from La Rioja, Logroño, Spain. The HUVEC line is a useful tool for the isolation of R. amblyommatis.

IgE to α-Gal in Foresters and Forest Workers From La Rioja, North of Spain.

OBJECTIVE: To investigate the prevalence of and factors associated with the presence of α-gal-specific IgE in a risk group of foresters and forest workers from La Rioja, Spain and in a control group. METHODS: The study population comprised 169 workers and 100 individuals who did not recall having had tick bites. A questionnaire including demographic data and number of tick bites per year was completed by a physician. α-Gal sIgE was assessed using ImmunoCAP with serum samples that had been taken in 2010. In 2015, second serum specimens were taken from all but 1 of the workers, who had positive specific IgE to α-gal in 2010. These new samples were tested for IgE to the α-gal epitope and to mammalian meat. RESULTS: The prevalence of positive sIgE to α-gal was 15% in the risk population and 4% in the control population. α-Gal sIgE positivity was associated with the number of tick bites per year and with seniority. Thirteen out of 21 patients sensitized to α-gal in 2010 showed positive specific IgE to α-gal in serum samples from 2015. Eleven had specific IgE to mammalian meat, but none reported symptoms of meat allergy. CONCLUSIONS: The prevalence of α-gal sIgE antibodies in this risk population was higher than in the control group and was associated with the number of tick bites per year and with seniority. None of the workers sensitized to mammalian meat developed meat allergy, possibly owing to the low levels of sIgE to α-gal.