Mass animal sacrifice at casas del Turuñuelo (Guareña, Spain): A unique Tartessian (Iron Age) site in the southwest of the Iberian Peninsula.

Zooarchaeological analyses of the skeletal remains of 52 animals unearthed in the courtyard of an Iron Age Tartessian building known as Casas del Turuñuelo (Badajoz, Spain) shed light on a massive sacrifice forming part of a series of rituals linked to the site's last period of activity and final abandonment. The rites took place towards the end of the 5th century BCE when both the building (intentionally destroyed) and the sacrificed animals were intentionally buried under a tumulus 90 m in diameter and 6 m high. The main objective of the zooarchaeological and microstratigraphic analyses was to determine the phasing of the sacrificial depositions. Evidence gathered from taphonomic assessments and a series of radiocarbon datings indicate that the sacrifices fall into three consecutive phases spanning several years. The findings of the zooarchaeological analyses clearly point to a selection of equid and cattle males. Adult equids predominate (MNI = 41) followed by adult and sub-adult cattle (MNI = 6). Pigs, in turn, are only represented by a few adults and sub-adult females (MNI = 4). Among the animals is a single dog of undetermined sex between 3 and 4 years of age. The fact that the animals are mostly adults discards the likelihood that they died from natural causes or an epidemic. In addition, the scenographic deposition of certain equids in pairs, as well as evidence of the burning of plant offerings, suggest an intentional ritualistic sacrifice. Nine of the initial depositions of Phase 1 in the SE quadrant were scattered and certain of their bones bear marks characteristic of both prolonged open air exposure and scavengers. Another 31 animals from Phases 1 and 2 are represented by almost complete, articulated skeletons, indicating they were promptly covered. Phase 3, by contrast, reveals both almost complete and partial animals bearing clear signs of processing for human consumption. This study thus sheds light on both the sequence of the animal sacrifices and the protocols linked to rites accompanied by the celebration of banquets. Certain features associated with the sealing of this building under a tumulus offer evidence of the decline of the Tartessian Culture. This study thus advances notions serving to contextualize ritual animal sacrifices in the framework of practice observed at other Iron Age sites in the Iberian Peninsula and elsewhere throughout Europe.

Courtship and Reproduction of the Whitetip Reef Shark Triaenodon obesus (Carcharhiniformes: Carcharhinidae) in an Ex Situ Environment, with a Description of the Late Embryonic Developmental Stage.

Elasmobranchs represent a group of species under considerable anthropic pressure because of the scale of industrial and artisanal fisheries and the loss of essential areas for nursery and feeding, which are causing substantial population losses around the world. Reproduction in an ex situ environment enables a healthy population to be built and maintained in networks of public aquariums, increasing our knowledge of elasmobranch reproductive biology and offering the opportunity for reintroductions in areas where native populations have been removed. The study reports two successful pregnancies of the whitetip reef shark Triaenodon obesus, considered a vulnerable species by the International Union for the Conservation of Nature. Copulation and gestation data are provided, including ultrasound recordings of the late stage of embryo development. Ultrasonography was performed with the GE Logiq and convex transducer and revealed a fetus with defined fins and organogenesis, with definition of eyes, gills, liver, a heart with individualized chambers, partially defined kidneys, and a well-defined spiral intestine. A cartilaginous skeleton forming a posterior acoustic shadow was detailed, as well as a moving fetus with a biparietal diameter of 6.47 cm and a heart rate of 62 Beats Per Minute on spectral Doppler. This is the first successful reproduction of T. obesus in an aquarium in Brazil.

Expression of procollagen C-proteinase enhancer 1 in human trabecular meshwork tissues and cells.

Glaucoma is a primary cause of progressive, irreversible blindness. One of the primary tissues involved in glaucoma pathology is the trabecular meshwork (TM). In glaucoma, the TM is a site of increased extracellular matrix (ECM) protein secretion, deposition, and accumulation, contributing to a disrupted TM architecture and increased resistance to the outflow of aqueous humor. The healthy TM structure is comprised of sheets and beams composed of multiple extracellular matrix proteins, including mature fibrillar collagens. In the glaucomatous eye, this structure is disrupted by the abnormal deposition of collagen fibrils and other ECM proteins in the TM. In this study, we determined whether procollagen C-proteinase enhancer 1 (PCOLCE1) - a protein typically involved in collagen fibril processing - is expressed in the human TM tissues and cells and whether its expression is altered in glaucomatous conditions. Using immunocytochemistry, qPCR, and western blot (WB) analyses, we found that PCOLCE1 is expressed and translated in human TM tissues and cells. Our data analysis suggests that PCOLCE1 expression by TM cells may be downregulated by TGFß2 treatment, which warrants further investigation of a possible role for PCOLCE1 in glaucomatous pathology.

Dinosaur bonebed amber from an original swamp forest soil.

Dinosaur bonebeds with amber content, yet scarce, offer a superior wealth and quality of data on ancient terrestrial ecosystems. However, the preserved palaeodiversity and/or taphonomic characteristics of these exceptional localities had hitherto limited their palaeobiological potential. Here, we describe the amber from the Lower Cretaceous dinosaur bonebed of Ariño (Teruel, Spain) using a multidisciplinary approach. Amber is found in both a root layer with amber strictly in situ and a litter layer mainly composed of aerial pieces unusually rich in bioinclusions, encompassing 11 insect orders, arachnids, and a few plant and vertebrate remains, including a feather. Additional palaeontological data-charophytes, palynomorphs, ostracods- are provided. Ariño arguably represents the most prolific and palaeobiologically diverse locality in which fossiliferous amber and a dinosaur bonebed have been found in association, and the only one known where the vast majority of the palaeontological assemblage suffered no or low-grade pre-burial transport. This has unlocked unprecedentedly complete and reliable palaeoecological data out of two complementary windows of preservation-the bonebed and the amber-from the same site.

Delivering Beneficial Microorganisms for Corals: Rotifers as Carriers of Probiotic Bacteria.

The use of Beneficial Microorganisms for Corals (BMCs) to increase the resistance of corals to environmental stress has proven to be effective in laboratory trials. Because direct inoculation of BMCs in larger tanks or in the field can be challenging, a delivery mechanism is needed for efficient transmission of the BMC consortium. Packaged delivery mechanisms have been successfully used to transmit probiotics to other organisms, including humans, lobsters, and fish. Here, we tested a method for utilizing rotifers of the species Brachionus plicatilis for delivery of BMCs to corals of the species Pocillopora damicornis. Epifluorescence microscopy combined with a live/dead cell staining assay was used to evaluate the viability of the BMCs and monitor their in vivo uptake by the rotifers. The rotifers efficiently ingested BMCs, which accumulated in the digestive system and on the body surface after 10 min of interaction. Scanning electron microscopy confirmed the adherence of BMCs to the rotifer surfaces. BMC-enriched rotifers were actively ingested by P. damicornis corals, indicating that this is a promising technique for administering coral probiotics in situ. Studies to track the delivery of probiotics through carriers such as B. plicatilis, and the provision or establishment of beneficial traits in corals are the next proof-of-concept research priorities.

Hysteroscopic metroplasty for the septate uterus: review and meta-analysis.

The introduction of hysteroscopy to diagnose and treat intrauterine conditions, specifically to divide the uterine septum, or metroplasty, has replaced the traditional laparotomy approach, and objective results demonstrate its salutary effects in women treated. Hysteroscopic metroplasty averts the implications of major invasive abdominal surgery, with good and satisfactory results in pregnancy and live-birth rates, despite the lack of prospective, randomized, controlled studies. A careful review of the published results supports this type of treatment when the uterine septum adversely affects normal reproductive function.

Entesis, entesopatía y espondiloartritis / Entheses, enthesopathy and spondyloarthritis

Las espondiloartritis (SpA) comprenden un grupo heterogéneo de enfermedades inflamatorias articulares que comparten varias características clínicas y de laboratorio, una fuerte tendencia a la asociación familiar dada por una susceptibilidad genética relacionada con la presencia del antígeno de histocompatibilidad HLA-B27, compromiso de las entesis, afectación predominante del esqueleto axial, artritis asimétrica de grandes articulaciones en los miembros inferiores y relación con la infección como factor desencadenante de las mismas. Las SpA incluyen varios subtipos: la artropatía psoriásica (PsA), las espondiloartritis no definidas (uSpA), la artritis asociada a enfermedades inflamatorias intestinales (EII), la artritis reactiva (ReA) y la espondilitis anquilosante (EA). La característica histopatológica fundamental de las SpA es la entesitis, la cual está dada por la inflamación patológica de las entesis comprometidas, que son los sitios de inserción de los tendones, ligamentos, fascias y cápsulas articulares al hueso; así como también el sitio de unión del cartílago al hueso subcondral.

Spondyloarthritis are a heterogeneous group of inflammatory joint diseases, which share clinic and laboratory characteristics, a strong relation to hereditary factors (mainly antigen HLA-B27), enthesesitis (most commonly affecting axial skeleton), large joints asymmetric arthritis mostly in lower limbs, and its relationship with infections as a triggering factor. Spondyloarthitis include various subtypes: Psoriatic Arthropathy (PsA), Undifferentiated Spondiloarthritis (uSpA), Arthritis related to inflammatory bowel disease (IBD), Ankylosing Spondylitis (AS) and Reactive Arthritis (ReA). Fundamental histopathologic characteristic of the Spondyloarthritis is enthesitis on the sites of attachment of tendons, ligaments, joint capsules and fascias to the bone, but also over the cartilage at the subchondral bone.

Espondiloartritis y su asociación con el Complejo Mayor de Histocompatibilidad / "Spondylarthritis and the association with Major Histocompatibility Complex"

Las espondiloartritis corresponden a un grupo heterogéneo de enfermedades crónicas caracterizadas por entesitis tanto axial como periférica, artritis y menos comúnmente manifestaciones extra articulares. Se encuentran fuertemente ligadas a factores genéticos y en algunos pacientes a infecciones por bacterias artritogénicas. Su presentación y curso clínico se encuentran influenciados por la etnia, el género y la edad de inicio de la enfermedad. La Espondilitis Anquilosante (EA) como prototipo de espondiloartritis es una enfermedad hereditaria con un 90% de susceptibilidad atribuible a factores genéticos. Desde el descubrimiento de la asociación del alelo HLA-B*27 en los años setenta, las bases moleculares de esta asociación, una de las más fuertes entre una molécula del Complejo Mayor de Histocompatibilidad y una enfermedad, permanecen sin esclarecer. La fuerte asociación del HLA-B*27 confiere a este alelo un papel significativo de susceptibilidad para el desarrollo de la enfermedad. Varios estudios han informado la asociación de otros genes dentro del Complejo Mayor de Histocompatibilidad con la susceptibilidad para el desarrollo de la enfermedad en varios grupos poblacionales.

Spondylarthritis refers to a heterogeneous group of chronic diseases characterized by both axial and peripheral enthesitis, arthritis and extra articular manifestations. There is strongly linked to genetic factors and in some patients is related to clinical infections by arthritogenic bacteria. The clinical presentation and evolution are influenced by ethnicity, gender and age of onset. Ankylosing Spondylitis as a prototype of Spondylarthritis is an inherited disease with 90% of susceptibility related to genetic factors. Since the publication of the association of HLA-B*27 in the 70's, the molecular component of this association, one of the strongest between a molecule of Major Histocompatibility Complex and disease, remains unclear. The strong association of HLA-B*27 gives to this allele a significant role in susceptibility related to disease development. Several studies have reported the association of other genes within the Major Histocompatibility Complex to susceptibility for development of the disease in others population groups.

Historia de la Artritis Psoriática. Primera parte. Desde Alibert hasta V. Wright / History of Psoriatic Arthritis. First part. From Alibert to V. Wright

Presentamos, en esta primera parte de la historia de la artritis psoriática, los eventos que llevaron al conocimiento de esta enfermedad, de cómo se separó de las otras y cómo se generaron los primeros criterios clasificatorios de esta patología.Palabras clave: historia, espondioartropatía, psoriasis, artritis psoriática.

In this first part of the history of psoriatic arthritis, we present the most important events that led to the knowledge of this disease, how it was separated from other inflammatory arthropathies, as well as how the first classificatory criteria in this disease were developed.Key words: history, spondyloarthropathy, psoriasis, psoriatic arthritis.

Enfermedad de Still del Adulto: Estudio de Cohorte / Adult Still's Disease: Cohort Study

Objetivo: Describir las características clínicas, paraclínicas y manejo de la enfermedad de Still del adulto (E.S.A.). Métodos: Análisis retrospectivo de una cohorte de 24 pacientes. Resultados: Las características clínicas fueron: fiebre (100%), rash (79.1%) y artritis (66.66%). Leucocitosis (75%) fue la alteración paraclínica más frecuente, seguida por un incremento de la PCR, VSG y ferritina en 70.8%, 66.65% y 62.5%, respectivamente. El 50% de los pacientes presentaron un curso monocíclico; el 33%, policíclico sistémico y el 17%, policíclico articular. No se presentaron casos de monocíclico poliarticular. Se evidenciaron manifestaciones inusuales de enfermedad tales como: urticaria en 7 pacientes (29%); enfermedad pulmonar intersticial, en 6 pacientes (25%); meningitis aséptica, 4 pacientes (16.6%) y SDRA, en 4 pacientes (16.6%). Por su parte, todos los pacientes recibieron esteroides y 9 de ellos (37.5%) necesitaron tratamiento con pulsos de metilprednisolona. Dentro de las drogas modificadoras, el metotrexate fue el medicamento más usado en 15 casos (62.5%), seguido por cloroquina sola o combinada en 11 pacientes (45.8%). Además, 3 pacientes (12.5%), requirieron tratamiento con terapia anti TNF por pobre respuesta a la terapia convencional. Fallecieron 2 pacientes (8.4%) asociados a cuadros de SDRA. Conclusiones: La ESA tiene un amplio y difícil diagnóstico diferencial a pesar de manifestaciones clásicas. La presencia de expresiones clínicas poco usuales puede retardar el diagnóstico y tratamiento de ESA. La ESA no es una enfermedad benigna y puede cursar con alta mortalidad cuando se asocia a manifestaciones pulmonares severas.

Purpose: describe the clinical and laboratory finding, as well as the treatment, of adult still's disease (ASD). Methods: retrospective analysis of a 24 patients cohort. Results: clinical features were: fever (100%), rash (79.1%) and arthritis (66.6%). Most frequent laboratory alterations were: leukocytosis (75%), followed by increased PCR, VSG and ferritin, 70.8%, 66.65% and 62.5% respectively. 50% of the patients showed a monocyclic course, while 33% showed polycyclic systemic and 17% joint polycyclic. No joint monocyclic cases were found. Besides, some unusual manifestations such urticaria in 7 patients (29%); interstitial lung disease in 6 patients (25%); aseptic meningitis in 4 patients (16.6%) and SDRA in 4 patients (16.6%) were found. All the patients received steroid and 9 of them (37.5%) required therapy with IV methilprednisolone. Methotrexate was the most used medication between all; DMARD in 15 cases (62.5%), followed by chloroquine, alone or in combination, in 11 patients (45.8%). Besides, 3 patients (12.5%) required treatment with anti TNF due to poor response to conventional therapy. 2 patients died (8.4%) due to adult respiratory distress syndrome. Conclusions: ASD has a broad and difficult differential diagnosis despite classical features. The presence of unusual manifestations may delay the diagnosis and treatment of this disease. ASD in not a benign disease and may appear with high mortality when it is associated with severe lung involvement.

Epidemiología de las vasculitis primarias en Colombia y su relación con lo informado para Latinoamérica / Epidemiology of primary vasculitis in Colombia and its relation with reported for latin america

Propuesta: las vasculitis primarias se expresan de forma variable entre pacientes y entre regiones, con frecuencias variables a través del mundo. Su incidencia promedio está calculada en 0,3 a 20 casos por millón de habitantes. Nosotros describimos la frecuencia de las vasculitis primarias en Colombia y la comparamos con lo informado en otros países de Latinoamérica (LA). Métodos: se revisó lo publicado en la literatura de vasculitis primaria en Colombia y en LA desde 1945 hasta 2007 en OLD Medline, Pub Med, BIREME, SciELO Colombia, LILACS. FEPAFEN, incluyendo publicaciones en inglés, español y portugués. La literatura incluye la información publicada del Hospital San Juan de Dios, Bogotá, Colombia y casos sin publicación enviados directamente por los autores. Nosotros calculamos el porcentaje para todos los casos que fueron informados para Colombia. Resultados: se identificaron 857 casos de vasculitis primaria en Colombia. La arteritis de Takayasu fue la vasculitis más frecuente en un 13,3% (114 casos) seguida de la enfermedad de Buerger en 11,2% (96 casos), las vasculitis cutáneas primarias y la poliarteritis nodosa en un 10% (86 casos) cada una. En niños, la vasculitis más frecuente fue la púrpura de Henoch Schönlein en un 24% (206 casos). En Latinoamérica se publicaron 177 artículos con 1605 casos informados. Se evidenció mayor presencia de arteritis de Takayasu en México y Brasil, y de poliangeítis microscópica en Chile y Perú. Conclusión: la mayoría de publicaciones sobre vasculitis primarias provienen de Europa, Norteamérica, Japón, Kuwait y Nueva Zelanda. Existen una serie de publicaciones y experiencia con estas patologías en LA. Un número considerable de publicaciones y casos con vasculitis primarias se han informado en Colombia en los recientes años, incluyendo la reciente descripción de la variante nodular de la vasculitis cutánea. La arteritis de Takayasu fue la variante más reportada del promedio de vasculitis, al igual que en Brasil y México. En contraposición a los hallazgos realizados en Brasil, Colombia y Mexico, las vasculitis asociadas a ANCA fueron la forma más informada en países como Chile y Perú. La mayoría de casos informados en LA provienen de México, siendo Colombia el segundo país en frecuencia. Es posible que exista más información pero no la conocemos, por no estar publicada. No existen estudios de incidencia y prevalencia. A escala mundial solo existen estudios de incidencia de las vasculitis primarias, y solo se han realizado estudios de incidencia y prevalencia en la granulomatosis de Wegener.

Purpose: primary vasculitis occurs with variable expression in individual patients and regions, and variable frequency throughout the world. Their overall incidence has been calculated to be 40 cases per million populations. We sought to describe the frequency of vasculitis in Colombia and compare it with vasculitis reported from other countries of Latin America (LA). Methods: review of available published literature on vasculitis in LA from 1945 to 2007 in OLD Medline, Pub Med, BIREME, SciELO Colombia, LILACS, FEPAFEN, including publications in English, Spanish and Portuguese. The literature included published information from San Juan de Dios hospital, Bogota, Colombia, and unpublished cases submitted directly to the authors. We calculated the percentage of all cases which are reported from Colombia. Results: we identified 857 cases of primary vasculitis in Colombia. Takayasu arteritis was the most common vasculitis in 13.3% (114 cases) followed by Buerger's disease in 11.2% (96 cases), primary cutaneous vasculitis and polyarteritis nodosa in a 10% (86 cases) each. In children, the vasculitis was more frequent in Henoch Schonlein purpura in 24% (206 cases). In Latin America, 177 articles were published in 1605 reported cases. It showed increased presence of Takayasu's arteritis in Mexico and Brazil, and microscopic poliangeiitis in Peru and Chile. Conclusion: while the majority of publications on primary vasculitis are from Europe and North America, there is a substantial literature and experience with these disorders in LA. A considerable number of publications and cases have emerged from Colombia in recent years, including case descriptions of a recently described variant of nodular cutaneous vasculitis. Takayasu arteritis was the most frequently reported form of primary vasculitis overall, and also from Brazil and Mexico. However, ANCA related vasculitis were the most commonly reported forms in Chile and Peru instead. The greatest numbers of cases were reported from Mexico, the LA's most populous country, with Colombia a close second.

Development of hysteroscopy: from a dream to a reality, and its linkage to the present and future.

Hysteroscopy today represents 200 years of salient innovations in instrumentation, new clinical applications for existing instruments, and continual modification of techniques, all aiming at observing, diagnosing, and treating pathologic conditions of the uterine cavity. Pioneers established the fundamental principles of intrauterine observation that steady technological advances would simplify and refine, all the way to the instrumentation and ancillary equipment now in use. Homage should be given and tribute paid to predecessors who made instrumentation, intrauterine distention, and illumination safe and practical for diagnostic and therapeutic hysteroscopy. Their accomplishments are remembered as we look with optimism to the many advances that undoubtedly will mark the future of hysteroscopy.

Low frequency of anticyclic citrullinated peptide antibodies in psoriatic arthritis but not in cutaneous psoriasis.

BACKGROUND: Anticyclic citrullinated peptide (anti-CCP) antibodies are highly specific for the diagnosis of rheumatoid arthritis (RA). The clinical distinction between RA and psoriatic arthritis (PsA) is often difficult to establish; therefore, the presence of rheumatoid factor (RF) and anti-CCP antibodies could be useful. Seven percent to 40% of patients with longstanding psoriasis will develop PsA at some point. Therefore, it is important to study the positivity of these antibodies in these two interrelated populations. OBJECTIVE: The aim of this study was to determine the seropositivity of anti-CCP antibodies in patients with psoriasis and PsA and to compare it with that seen in patients with other inflammatory, noninflammatory (osteoarthritis) arthritides and healthy controls. PATIENTS AND METHODS: Serum anti-CCP antibodies were measured in 106 patients with cutaneous psoriasis, 72 patients with PsA, 41 healthy controls (HC), 41 patients with undifferentiated or early inflammatory arthritis (UA), and 41 patients with RA and 41 with osteoarthritis using a commercial second-generation enzyme-linked immunosorbent assay. We considered a positive result to be >20 UI/mL, as recommended by the manufacturer. RESULTS: Of 106 patients with PsA, 55 were women and 51 men. The mean age was 42.87 +/- 17.71 years and the mean disease duration was 5.3 +/- 2.10 years. Anti-CCP antibodies were not present in patients with psoriasis without arthritis. In contrast, 7 of 72 (9.72%) patients with PsA were positive for anti-CCP antibodies with a median titer of 7.16 units. Only one patient with PsA was positive for RF. Most of these patients were female with polyarticular joint involvement. Distal interphalangeal involvement was present in 4 and 2 had dactylitis. We found clear differences when we compared patients with PsA with patients with psoriasis (P = 0.001). Of the 43 patients with UA studies, 4 initially exhibited a low titer positive anti-CCP antibody, and at follow up, another patient developed anti-CCP antibodies and later developed RA. None of the patients with UA developed PsA at 5-year follow up. Thirty-two of the 41 patients had a positive anti-CCP antibody and the mean +/- standard deviation of the anti-CCP units was 80.61 +/- 55.5.2. Six of the 41 (14.6%) patients with osteoarthritis studied had positive anti-CCP with a mean titer of 7.388. None of the healthy controls exhibited positively for anti-CCP antibodies. CONCLUSION: Anti-CCP antibodies may be found in patients with PsA and not in our patients with only cutaneous psoriasis. These antibodies may also be found in some patients with osteoarthritis and rarely in patients with UA; such patients will be of interest to follow prospectively.

Concomitant Essure tubal sterilization and Thermachoice endometrial ablation: feasibility and safety.

OBJECTIVE: To evaluate the feasibility and safety of combining endometrial ablation (EA) with a thermal balloon endometrial ablation system (Gynecare Thermachoice IIIC Uterine Balloon Therapy System; Ethicon Inc., Somerville, NJ) and transcervical sterilization by intratubal insert (Essure Permanent Birth Control System; Conceptus, San Carlos, CA). DESIGN: Feasibility and safety studies. SETTING: University hospital in Chihuahua, Mexico. PATIENT(S): There were 40 volunteers in the feasibility study and 9 in the safety study, all requiring hysterectomies for benign uterine bleeding. INTERVENTION(S): In the feasibility study, both procedures were performed just before hysterectomy; in the safety study, thermocouples were inserted under the tubal serosa to assess heat transmission from the intratubal insert devices to the tubes and surrounding organs during EA. MAIN OUTCOME MEASURE(S): Completeness of EA and possible device dislodgement in the feasibility study; temperature readings in the safety study. RESULT(S): No disturbance of the intratubal insert devices was noted, and EA by the thermal balloon endometrial ablation system was complete visually and histologically, although small areas near the tubal ostia exhibited less endometrial destruction. Mean tubal temperatures ranged from 37.1 degrees C to 37.5 degrees C and did not reach the critical temperature of 45 degrees C. No damage to the tubes was noted. CONCLUSION(S): Performance of EA and sterilization with these two systems in a one-step approach is safe for women who require EA and permanent contraception.

Diagnóstico temprano de las espondiloartropatías / Early diagnosis of spondylarthropathies

Las espondiloartropatías son un grupo de enfermedades inflamatorias crónicas, de las cuales se destacan especialmente la espondilitis anquilosante, artritis reactiva, artritis psoriásica, artritis asociada con la enfermedad inflamatoria intestinal y las espondiloartropatías indiferenciadas. Los subgrupos más comunes de espondiloartropatías son la espondilitis anquilosante y la espondiloartropatía indiferenciada. El diagnóstico de la espondilitis anquilosante se basa especialmente en los hallazgos radiológicos inequívocos de sacroiliítis de grado 2 bilateralmente o grado 3 unilateralmente. Sin embargo en la fase temprana de la enfermedad, los estudios radiológicos no son lo suficientemente sensibles como para mostrar la presencia de sacroiliítis y por lo general pueden tardar varios años para detectar la presencia de sacroiliitis radiológica; de esta manera el diagnóstico de espondilitis anquilosante puede tardar hasta 8 a 11 años luego del inicio de los síntomas; como consecuencia de ello, el diagnóstico de espondiloartropatía con compromiso axial en ausencia de sacroiliítis radiológica es de gran dificultad para el reumatólogo. En los estadíos tempranos, el test de HLA B27 y la resonancia magnética de articulaciones sacroiliacas son útiles en el diagnóstico temprano. En presencia de dolor crónico de espalda la probabilidad de espondiloartropatía axial es de un 5 por ciento y aumenta a un 14 por ciento en presencia de dolor de espalda inflamatorio; la probabilidad de espondiloartropatía axial aumenta a un 90 por ciento en presencia de = 3 hallazgos de espondiloartropatías (talagia, uveítis, dactilitis, historia familiar positiva, dolor glúteo alternante, psoriasis, enfermedad inflamatoria intestinal, artritis asimétrica, respuesta favorable a los antiinflamatorios no esteroideos). De otra parte, la positividad del HLA B27 y la resonancia magnética aumentan la probabilidad de la enfermedad, en especial en aquellos casos que no presentan otros hallazgos de espondiloartropatías o que presentan 1 a 2 manifestaciones de espondiloartropatías. En pacientes con espondiloartropatía psoriásica o asociada con la enfermedad inflamatoria intestinal el uso del HLA B27 es de valor limitado, ya que estas entidades por lo general tienen una asociación negativa con el HLA B27

Normatización para la administración y el seguimiento de los agentes bilógicos y de quimioterapia usados en reumatología / Guidelines for use of biologic agents and quimiotherapy in Rheumatology

El desarrollo de las ciencias básicas como la inmunología, la genética y la biología molecular ha permitido implementar nuevas alternativas de tratamiento en enfermedades que tradicionalmente contaban con pocas opciones terapéuticas. La reumatología en los últimos años ha adoptado y extendido el uso de agentes biológicos y la quimioterapia en la mayoría de las enfermedades reumáticas. Para ello es necesario establecer guías para la utilización de estos agentes. El uso inapropiado de estos agentes puede llevar a consecuencias catastróficas. Los nuevos medicamentos deben ser usados sólo por personas expertas en el tratamiento de las enfermedades reumáticas y su administración debería realizarse en condiciones ideales para minimizar el riesgo. La Asociación Colombiana de Reumatología pretende con este documento establecer las guías locales para utilizar estos agentes