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This narrative review explores the application of point-of-care ultrasound (POCUS) in palliative care and its feasibility in home care settings. POCUS has the potential to streamline diagnostic strategies without patient transfer to the hospital, expedite timely symptomatic relief, and reduce complications from specific palliative interventions. The advent of handheld ultrasound devices has made it an attractive diagnostic and interventional adjunct in acute palliative care. POCUS has gained widespread acceptance as part of routine care in emergency medicine and intensive care, guiding certain procedures and increasing their safety. The modernization and miniaturization of ultrasound equipment have made ultra-portable devices available, allowing for better-quality images at affordable prices. Handheld devices have the potential to revolutionize everyday clinical practice in home-based palliative care, contributing to important bedside clinical decisions. Palliative care patients often require diagnostic examinations in the last months of their lives, with CT being the most frequently performed imaging procedure. However, CT imaging is associated with high costs and burdens, leading to increased suffering and impaired quality of life. Clinical ultrasound, a dialogic imaging modality, offers a safer and more efficient approach to palliative care. POCUS applications, which are cost-effective, non-invasive, and well-tolerated, can be used to improve patient satisfaction and diagnostic understanding. POCUS is a valuable tool in palliative care, improving diagnostic accuracy and reducing the time to diagnosis for various pathologies. It is a standard of care for many procedures and improves patient safety. However, there are limitations to POCUS in palliative care, such as operator-dependent examination variability and limited availability of trained professionals. To overcome these limitations, palliative care physicians should receive mandatory training in POCUS, which can be incorporated into the core curriculum. Additionally, ultrasound teleconsulting can assist less experienced examiners in real-time examinations. The literature on POCUS in palliative care is limited, but research on patient-oriented outcomes is crucial. POCUS should be considered a supplement to good clinical reasoning and regulated radiological evaluations.
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The sustainability of a territory is achieved through orderly, balanced and harmonious planning over time. Sustainable tourism planning must incorporate the emotions of interest groups. Based on a scale of negative and positive emotions that has already been validated, a participatory study of a qualitative nature has been developed with 118 hotel managers from the region of Extremadura, in the south-west of Spain. In addition, another quantitative research study has been carried out, using a longitudinal exploratory model analyzed in three phases throughout the years 2021 and 2022, using the SEM-PLS methodology. The objective is to detect if the II Tourism Plan (2021-2023) can influence the willingness of hotel managers to participate, and if this participation generates emotions that enrich the planning process of the tourist authorities. The results highlight the importance of completing decision making (cognitive part) with the measurement of emotions (sensitive part) of private agents to involve them in the planning process.
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OBJECTIVE: To describe arrhythmias associated with administration of lidocaine in dogs treated for supraventricular tachyarrhythmias. CASE SUMMARIES: Four dogs with recent-onset supraventricular tachyarrhythmias: 3 dogs had atrial fibrillation (AF), and 1 had focal atrial tachycardia (FAT), which was thought to be AF at the time of assessment. The substrate of the supraventricular tachyarrhythmia was considered to be due to primary cardiomyopathy in 1 dog, high vagal tone in 2 dogs, and the change in hemodynamics from heavy sedation in 1 dog. Pharmacological cardioversion using lidocaine was only successful in the 2 dogs with vagally mediated AF. In these 2 cases, lidocaine administration resulted in a paroxysmal atrial flutter that was self-limiting and quickly led to sinus rhythm within 10 seconds in 1 dog but did not change over a 5-minute interval and required additional boluses in another dog. In the latter case, the dog showed severe bradycardia for 17.5 seconds prior to achieving sinus rhythm. The 2 unsuccessful cases both developed ventricular arrhythmias shortly after the lidocaine administration, with 1 case degenerating into ventricular fibrillation and cardiac arrest. NEW OR UNIQUE INFORMATION PROVIDED: Arrhythmias associated with lidocaine should be considered when treating dogs with supraventricular tachyarrhythmia.
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Fibrilación Atrial , Enfermedades de los Perros , Animales , Fibrilación Atrial/tratamiento farmacológico , Fibrilación Atrial/veterinaria , Enfermedades de los Perros/tratamiento farmacológico , Perros , Cardioversión Eléctrica/veterinaria , Lidocaína , Taquicardia/veterinaria , Fibrilación Ventricular/veterinariaRESUMEN
Social movements and the consequences of the current health crisis resulting from COVID-19 have deepened social injustices and inequities, which can be addressed through the benchmarks set by the Sustainable Development Goals (SDGs). This research is related to the perspective of Higher Education Institutions (HEIs) as social transformation agents. The purpose of this research is to create a scale to measure students' perception of the social responsibilities developed by HEIs from the SDGs' perspective. A matrix solution was found after Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) composed of four dimensions. The constructs that form the four dimensions can be used to design strategies which contribute to the SDGs' goals, for which it is necessary to have the opinions of the actors that are part of the educational community. Future research should consider carrying out comparative studies according to sociodemographic variables for a better understanding of the social phenomenon.
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COVID-19 , Desarrollo Sostenible , COVID-19/epidemiología , Objetivos , Humanos , Percepción , Responsabilidad Social , EstudiantesRESUMEN
Agricultural vegetable products always seek to meet the growing demands of the population; however, today, there are great losses in supply chains and in the sales stage. Looking for a longer shelf life of fruits and vegetables, postharvest technologies have been developed that allow an adequate transfer from the field to the point of sale and a longer shelf life. One of the most attractive methods to improve quality and nutritional content and extend shelf life of fruits and vegetables is the incorporation of bioactive compounds with postharvest technologies. These compounds are substances that can prevent food spoilage and the proliferation of harmful microorganisms and, in some cases, act as a dietary supplement or provide health benefits. This review presents an updated overview of the knowledge about bioactive compounds derived from plant residues, the techniques most used for obtaining them, their incorporation in edible films and coatings, and the methods of microbial inhibition.
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The assessment of nicotine dependence with brief instruments is of great relevance for the better detection of this disorder. Here we present the results with the Nicotine Dependence Syndrome Scale (NDSS) by Shiffman, Waters and Hickcox (2004) in a sample of 183 patients treated at an Alcohol Dependence Unit who were also cigarette smokers. The results indicate that the general factor which evaluates nicotine dependence (NDSS-T) has good reliability (Cronbach's alpha = 0.80). Factor analysis identifies four of the five factors proposed in the original version, those of drive, priority, continuity and stereotypy. Reliability of the scales derived ranges from very good (0.80) to moderate (0.63). The NDSS-T correlates significantly with the Fagerström Tolerance Questionnaire (FTQ), with the DSM-IV criteria for nicotine dependence assessed through the SCID, and with the number of cigarettes smoked per day. The ROC curves indicate an NDSS-T score of 0.80 under the curve (0.70 for the FTND), showing that it adequately predicts nicotine dependence. This study confirms the utility of this new instrument for assessing nicotine dependence in smokers who also abuse or depend upon alcohol.
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Fumar/psicología , Encuestas y Cuestionarios , Tabaquismo/psicología , Adolescente , Adulto , Anciano , Alcoholismo/complicaciones , Alcoholismo/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicometría , Curva ROC , Tabaquismo/complicaciones , Adulto JovenRESUMEN
Intravesical Bacillus Calmette-Guérin (BCG) instillation is a mainstay of adjunctive therapy for superficial bladder cancer that increases length of disease progression-free survival. Although usually well tolerated, moderate to severe local and systemic infectious complications can occur with this immunotherapy. Diagnosis is difficult and often based on high clinical suspicion since in many cases Mycobacterium bovis is not isolated. Treatment is not fully standardized but the combination of anti-tuberculosis drugs and corticosteroids is advocated in severe cases. The authors present an unusual case of a severe infectious complication following intravesical BCG instillation with pulmonary and kidney involvement. Prompt anti-tuberculosis treatment associated to corticosteroid resulted in a marked clinical and radiological improvement, supporting the diagnosis of disseminated BCG infection. Based on this, the authors aimed to review the literature on this exceptional complication of this immunotherapy.
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Adyuvantes Inmunológicos/efectos adversos , Vacuna BCG/efectos adversos , Infecciones por Mycobacterium no Tuberculosas/inducido químicamente , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Lesión Renal Aguda/diagnóstico , Lesión Renal Aguda/etiología , Adyuvantes Inmunológicos/administración & dosificación , Adyuvantes Inmunológicos/uso terapéutico , Administración Intravesical , Corticoesteroides/uso terapéutico , Anciano , Antituberculosos/uso terapéutico , Vacuna BCG/administración & dosificación , Vacuna BCG/uso terapéutico , Tos/diagnóstico , Tos/etiología , Quimioterapia Combinada , Fatiga/diagnóstico , Fatiga/etiología , Hematuria/diagnóstico , Hematuria/etiología , Humanos , Inmunoterapia/efectos adversos , Masculino , Persona de Mediana Edad , Infecciones por Mycobacterium no Tuberculosas/diagnóstico por imagen , Infecciones por Mycobacterium no Tuberculosas/tratamiento farmacológico , Tomografía Computarizada por Rayos X/métodos , Resultado del Tratamiento , Neoplasias de la Vejiga Urinaria/inmunología , Neoplasias de la Vejiga Urinaria/cirugíaRESUMEN
INTRODUCTION: Malignant peritoneal mesothelioma (MPM) is a rare malignancy of the mesothelial cells in the peritoneum. The best-defined risk factor is asbestos exposure, but germline mutations in BAP1 also increase susceptibility to this tumor. The diagnosis of MPM is challenging since clinical manifestations are often nonspecific. CASE PRESENTATION: We describe a case of MPM in a 53-year-old former construction worker with prior asbestos exposure. The clinical presentation was a 3-month history of dyspeptic complaints. As initial workup, abdominal ultrasound and upper gastrointestinal endoscopy were performed. Chronic gastritis due to Helicobacter pylori was detected, which was promptly treated but without symptom relief. Abdominal ultrasound showed small volume ascites with hyperechogenic foci, which was later confirmed on computed tomography scan showing the presence of peritoneal nodules in the greater omentum and mesentery. A thorough investigation was conducted based on the suspicion of peritoneal carcinomatosis. A non-peritoneal primary tumor was not found. Ascitic cytology and immunocytochemical studies were suggestive of mesothelioma. He underwent exploratory laparotomy and inoperable peritoneal disease was observed. Peritoneal biopsy confirmed epithelioid-type MPM. Systemic therapy was initiated with platinum plus pemetrexed with good response. The last follow-up was 38 months after the diagnosis. DISCUSSION/CONCLUSION: The diagnosis of MPM is challenging since it requires a high degree of suspicion. MPM has a poor prognosis. The standard of treatment recommended is cytoreductive surgery with hyperthermic intraperitoneal chemotherapy. For those who are inoperable, systemic therapy with pemetrexed-cisplatin combination is the alternative. Given the infrequency of disease, it is imperative to ensure patient participation in clinical trials with the purpose of treatment standardization.
INTRODUÇÃO: O mesotelioma peritoneal maligno (MPM) é uma neoplasia rara das células mesoteliais no peritoneu. O fator de risco mais estabelecido é a exposição aos asbestos, mas as mutações germinativas BAP1 também aumentam a suscetibilidade a esse tumor. O diagnóstico é desafiador, uma vez que as manifestaçõs clínicas são frequentemente inespecíficas. CASO CLÍNICO: Reporta-se o caso de um homem de 53 anos, ex-trabalhador da construção civil, com história de exposição a asbestos. O doente apresentava um quadro de queixas dispépticas com 3 meses de evolução. Para estudo inicial, foram realizadas ecografia abdominal e endoscopia digestiva alta. Na endoscopia foi documentada gastrite crónica por Helicobacter pylori tendo feito tratamento de erradicação, mas sem melhoria sintomática. A ecografia abdominal revelou ascite de pequeno volume com focos hiperecogénicos em suspensão, o que foi posteriormente confirmado em tomografia computorizada, demonstrando a presença de nódulos peritoneais no grande epíplon e mesentério. Uma investigação exaustiva foi conduzida na suspeita de carcinomatose peritoneal, mas não foi encontrado nenhum tumor primário noutra localização. A citologia do líquido ascítico e os estudos imunocitoquímicos foram sugestivos de mesotelioma. O doente foi submetido a uma laparotomia exploradora na qual se documentou doença peritoneal inoperável. A biópsia peritoneal confirmou MPM do tipo epitelióide. Foi iniciado tratamento de quimioterapia com platino em associação com pemetrexed, com boa resposta. Seguimento atual de 38 meses pós-diagnóstico. DISCUSSÃO/CONCLUSÃO: O diagnóstico de MPM é desafiante uma vez que requer um alto grau de suspeição. MPM tem um prognóstico reservado. O tratamento standard recomendado é a cirurgia citorredutora com a quimioterapia intraperitoneal hipertérmica. No entanto, nos doentes inoperáveis, a alternativa é a quimioterapia sistémica com pemetrexed-cisplatina. Dada a raridade da doença, é imperativo integrar estes doentes em ensaios clínicos com o objetivo de padronização do tratamento.
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OBJECTIVE: To assess recording accuracy of right atrial and ventricular depolarization during 12-lead ECG when precordial lead V1 was positioned at each of 5 locations on the thorax of dogs with various thoracic conformations. ANIMALS: 60 healthy client-owned dogs. PROCEDURES: 20 dogs were allocated to each of 3 groups (brachymorphic, mesomorphic, or dolichomorphic) on the basis of thoracic conformation. Each dog remained unsedated and was positioned in right lateral recumbency for a series of five 12-lead surface ECGs, with V1 located adjacent to the sternum in the fifth intercostal space (ICS; control), at the costochondral junction (CCJ) of the right first ICS (1st-R), at the CCJ of the right third ICS, at the right third ICS where the thorax was the widest, and at the CCJ of the left first ICS. Electrocardiographic variables were compared among the 5 ECG tracings. RESULTS: When V1 was at the control location, the P wave was positive for all dogs; however, consistent recording of right atrial and ventricular depolarization (ie, R wave-to-S wave ratio [R/S] < 1) occurred more frequently for brachymorphic dogs (16/20) than for dolichomorphic (7/20) and mesomorphic (6/20) dogs. When V1 was at the 1st-R location, the P wave was negative for most dogs, and R/S was < 1 for the majority of dogs in the brachymorphic (19/20), mesomorphic (17/20), and dolichomorphic (16/20) groups. The median R/S for V1 at the 1st-R location was significantly lower than that for the other 4 V1 locations. CONCLUSIONS AND CLINICAL RELEVANCE: Results indicated that placement of V1 at the 1st-R location provided correct evaluation of right atrial and ventricular depolarization in most dogs regardless of thoracic conformation.
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Función del Atrio Derecho , Perros/fisiología , Electrocardiografía/veterinaria , Función Ventricular Derecha , Animales , Electrocardiografía/instrumentación , Femenino , Masculino , Pared TorácicaRESUMEN
BACKGROUND: The NDI, COM and NPQ are evaluation instruments for disability due to NP. There was no Spanish version of NDI or COM for which psychometric characteristics were known. The objectives of this study were to translate and culturally adapt the Spanish version of the Neck Disability Index Questionnaire (NDI), and the Core Outcome Measure (COM), to validate its use in Spanish speaking patients with non-specific neck pain (NP), and to compare their psychometric characteristics with those of the Spanish version of the Northwick Pain Questionnaire (NPQ). METHODS: Translation/re-translation of the English versions of the NDI and the COM was done blindly and independently by a multidisciplinary team. The study was done in 9 primary care Centers and 12 specialty services from 9 regions in Spain, with 221 acute, subacute and chronic patients who visited their physician for NP: 54 in the pilot phase and 167 in the validation phase. Neck pain (VAS), referred pain (VAS), disability (NDI, COM and NPQ), catastrophizing (CSQ) and quality of life (SF-12) were measured on their first visit and 14 days later. Patients' self-assessment was used as the external criterion for pain and disability. In the pilot phase, patients' understanding of each item in the NDI and COM was assessed, and on day 1 test-retest reliability was estimated by giving a second NDI and COM in which the name of the questionnaires and the order of the items had been changed. RESULTS: Comprehensibility of NDI and COM were good. Minutes needed to fill out the questionnaires [median, (P25, P75)]: NDI. 4 (2.2, 10.0), COM: 2.1 (1.0, 4.9). Reliability: [ICC, (95%CI)]: NDI: 0.88 (0.80, 0.93). COM: 0.85 (0.75,0.91). Sensitivity to change: Effect size for patients having worsened, not changed and improved between days 1 and 15, according to the external criterion for disability: NDI: -0.24, 0.15, 0.66; NPQ: -0.14, 0.06, 0.67; COM: 0.05, 0.19, 0.92. VALIDITY: Results of NDI, NPQ and COM were consistent with the external criterion for disability, whereas only those from NDI were consistent with the one for pain. Correlations with VAS, CSQ and SF-12 were similar for NDI and NPQ (absolute values between 0.36 and 0.50 on day 1, between 0.38 and 0.70 on day 15), and slightly lower for COM (between 0.36 and 0.48 on day 1, and between 0.33 and 0.61 on day 15). Correlation between NDI and NPQ: r = 0.84 on day 1, r = 0.91 on day 15. Correlation between COM and NPQ: r = 0.63 on day 1, r = 0.71 on day 15. CONCLUSION: Although most psychometric characteristics of NDI, NPQ and COM are similar, those from the latter one are worse and its use may lead to patients' evolution seeming more positive than it actually is. NDI seems to be the best instrument for measuring NP-related disability, since its results are the most consistent with patient's assessment of their own clinical status and evolution. It takes two more minutes to answer the NDI than to answer the COM, but it can be reliably filled out by the patient without assistance. TRIAL REGISTRATION: Clinical Trials Register NCT00349544.
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Evaluación de la Discapacidad , Dolor de Cuello/diagnóstico , Dimensión del Dolor/métodos , Psicometría , Adulto , Anciano , Características Culturales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Calidad de Vida , Reproducibilidad de los Resultados , España , Encuestas y Cuestionarios , TraducciónAsunto(s)
Antibacterianos/administración & dosificación , Doxiciclina/administración & dosificación , Infecciones por Rickettsia/diagnóstico , Infecciones por Rickettsia/tratamiento farmacológico , Rickettsia conorii/aislamiento & purificación , Antibacterianos/uso terapéutico , Exantema/etiología , Fluoroinmunoensayo , Humanos , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Infecciones por Rickettsia/complicacionesRESUMEN
We present a brief scale derived from the Nicotine Dependence Syndrome Scale (NDSS). We used a sample of 1.061 daily smokers, which was obtained from five Primary Care Health Centers, a Unit of Alcoholism, and a Smoking Cessation Unit. All smokers were evaluated with the NDSS and the SCID to assess nicotine dependence according to DSM-IV criteria. The results indicate the existence of a general factor of nicotine dependence according to the NDSS. We selected the items with a higher factor loading (>.50), obtaining a short scale of 6 items. With this brief scale, we obtained results similar to those of the total scale in the diverse variables (sociodemographic and smoking) of the study. Scale reliability is satisfactory (a= .79), the correlation between the short and the total scale is very high (r=.95, p<.001) and the short scale discriminates the smokers in terms of cigarette consumption and nicotine dependence, as assessed with the SCID. The operation under the ROC curve is excellent (area under the curve .84). The data indicate the usefulness of this brief scale (NDSS-S) to assess nicotine dependence in smokers.
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Índice de Severidad de la Enfermedad , Tabaquismo/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Área Bajo la Curva , Análisis Factorial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Curva ROC , Reproducibilidad de los Resultados , Muestreo , Autoinforme , Fumar/epidemiología , Fumar/psicología , España/epidemiología , Encuestas y Cuestionarios , Tabaquismo/psicología , Adulto JovenRESUMEN
INTRODUCTION: The hyper-proliferative activity of stromal smooth muscle (SM) cells is believed to be responsible for the pathogenesis of benign prostatic hyperplasia (BPH). We have observed that those stromal cells can differentiate into unrelated specialized cells. We thus hypothesize that stromal cells derived from adults prostate specimens may contain adult stem cells. To test this hypothesis, human prostate stromal primary cultures were established and used for characterization of their stem cell properties. METHODS: Immunoblotting, immunohistochemistry, RT-PCR, and tissue culture techniques were used to characterize the primary cultured human prostate-derived stromal cells for their stem cell and differentiation properties. The plasticity of these stromal cells was analyzed using cell culture and histology techniques. RESULTS: Primary cultured prostate stromal cells from BPH patient possess polygonal and elongated fibroblast/myofibroblast cellular morphology. They are positive in CD30, CD34, CD44, NSE, CD133, Flt-1, stem cell factor (SCF), and neuron-specific enolase (NSE), but negative in C-Kit, stem cell antigen (SCA), SH2, CD11b. Expression of SM myogenic markers in these cells may be induced by sodium butyrate (NaBu) treatment. Induction to osteogenic and adipogenic differentiation in these cells is also evident. CONCLUSIONS: Our study on primary stromal cells from BPH patients have yielded many interesting findings that these prostate stroma cells possess: (1) mesenchymal stem cell (MSC) markers; (2) strong proliferative potential; and (3) ability to differentiate or transdifferentiate to myogenic, adipogenic, and osteogenic lineages. These cell preparations may serve as a potential tool for studies in prostate adult stem cell research and the regulation of benign prostatic hyperplasia.
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Células Madre Adultas/patología , Hiperplasia Prostática/patología , Adipogénesis/fisiología , Células Madre Adultas/citología , Western Blotting , Diferenciación Celular/fisiología , Humanos , Inmunohistoquímica , Masculino , Desarrollo de Músculos/fisiología , Osteogénesis/fisiología , Hiperplasia Prostática/genética , Hiperplasia Prostática/metabolismo , ARN/química , ARN/genética , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Células del Estroma/citología , Células del Estroma/patologíaRESUMEN
OBJECTIVES: To compare elastin expression and elastic fibre width in the anterior vaginal wall of postmenopausal women with and with no bladder prolapse. PATIENTS AND METHODS: Full-thickness specimens were obtained from the upper lateral anterior vaginal wall of women having a large cystocele repaired (stage III or IV; prolapse group, 33) and the same location in patients with no prolapse having radical cystectomy (control group, 10). The percentage of elastin-positive tissue and elastic fibre width were measured by immunohistochemistry on 6 microm thick tissue sections from 10 random field readings per sample using image analysis software. The examiner was unaware of sample identity and the patients' clinical history. RESULTS: The age was comparable between the control and prolapse groups (median 70.5 years), and the parity, vaginal deliveries, hormone replacement use, cigarette smokers and body mass index were no different between the groups. Immunohistochemical staining and morphometric analysis indicated that elastin expression in the prolapse group was 10.6%, vs 14.4% in the control group (P = 0.049). The median width of elastic fibres was 0.9 microm in the prolapse and 1.8 microm in the control groups (P < 0.001). Elastin expression and elastic fibre width appeared to be stable with increasing age in the prolapse group. CONCLUSIONS: In this case-control study investigating elastin changes in postmenopausal women with prolapse, the elastin expression and fibre width were significantly lower in the vaginal wall of patients with a large cystocele than in controls of a similar age.
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Cistocele/patología , Tejido Elástico/patología , Elastina/metabolismo , Posmenopausia , Vagina/patología , Anciano , Estudios de Casos y Controles , Cistectomía/métodos , Cistocele/metabolismo , Cistocele/cirugía , Femenino , Humanos , Inmunohistoquímica , Persona de Mediana Edad , Posmenopausia/metabolismo , Análisis de Regresión , Vagina/metabolismoRESUMEN
BACKGROUND: Benign prostatic hyperplasia (BPH) is characterized as a stromal process. The stroma smooth muscle (SM) may alter its phenotype during the progression of BPH. We have identified gene transcripts that may be differentially expressed in BPH using a differential display method. Among the fragments isolated, alpha(2) macroglobulin (alpha(2)-M) is one of the most interesting. alpha(2)-M is a binding protein of a variety of proteinases, including prostatic specific antigen (PSA). It also plays roles in molecular trapping and targeting. In this study, we characterized alpha(2)-M expression in the human prostate. METHODS: Differential display was used to identify and isolate the differentially expressed transcripts between normal prostate and BPH tissues. RT-PCR, Western blot, in situ hybridization, and immunohistochemistry were utilized to confirm and characterize alpha(2)-M expression in the prostate. RESULTS: Real-time RT-PCR results revealed that a 3.2-fold increase in alpha(2)-M mRNA expression is observed in BPH compared with normal prostate tissue. A 1.9-fold increase at protein level was also observed. In situ hybridization and immunohistochemistry showed that alpha(2)-M expression is primarily localized to the stromal compartment. Cultured primary stroma cells maintained alpha(2)-M expression, while prostate epithelial cells had a significantly lower level of alpha(2)-M expression. Furthermore, stromal cells in culture produce and secrete alpha(2)-M in the medium. CONCLUSIONS: We identified alpha(2)-M expression in the human prostate. An increased alpha(2)-M expression appears to be associated with BPH. Considering the unique features of its protein binding and targeting properties, alpha(2)-M expressed in the prostate may play an important role in regulating benign and malignant prostatic growth.
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Expresión Génica , Próstata/metabolismo , Hiperplasia Prostática/metabolismo , alfa-Macroglobulinas/genética , Western Blotting , Células Cultivadas , Medios de Cultivo Condicionados , Electroforesis en Gel de Poliacrilamida , Perfilación de la Expresión Génica , Humanos , Inmunohistoquímica , Hibridación in Situ , Masculino , ARN Mensajero/aislamiento & purificación , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Células del Estroma/metabolismo , Técnicas de Cultivo de TejidosRESUMEN
PURPOSE: The search for molecular markers of benign prostatic hyperplasia in general is based on an analysis of a limited number of biopsy samples. Little is known about the homogeneity of the expression of key genes in different zones of the prostate. We studied the intraprostatic (that is within the same gland) and inter-prostatic (that is between glands) variability of 5 alpha-reductase 2 (5aR2) gene expression. MATERIALS AND METHODS: Ten tissue samples removed by open prostatectomy were the source of tissue specimens. Two frozen sections were generated from each of several random biopsies taken from each adenoma immediately after enucleation, 1 of which was used for 5aR2 gene expression analysis and 1 for morphometric analysis. Results among biopsies were compared using the 5 alpha-reductase index (ratio of 5 alpha-reductase expression to an internal standard measured as electrophoretic band intensity). Morphometric composition was determined for smooth muscle, collagen, epithelium and glandular lumens. Statistical comparisons were performed with ANOVA by pairwise multiple comparison (Dunn) and Spearman's rank correlation procedure. RESULTS: For the 71 biopsies analyzed mean 5 alpha-reductase index was 0.23 +/- 0.16 and overall tissue distribution was smooth muscle 34%, collagen 35%, epithelium 14% and glandular lumens 17%. Inter-prostate and intraprostate variability in 5 alpha-reductase index was statistically significant (p = 0.004) as was the variability in stromal-to-epithelial ratio (p = 0.012). The 5 alpha-reductase index showed strong correlation with stroma (%) and negative correlation with epithelium (%). CONCLUSIONS: Benign prostatic hyperplasia is heterogeneous in terms of tissue morphometry and expression of single important genes. This finding limits the use of single biopsy based markers to predict biological behavior, and has significant impact on the ability of distinguishing longitudinal changes in tissue composition from sampling artifacts.
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3-Oxo-5-alfa-Esteroide 4-Deshidrogenasa/genética , Regulación Neoplásica de la Expresión Génica , Hiperplasia Prostática/genética , Anciano , Anciano de 80 o más Años , Humanos , Masculino , Persona de Mediana EdadRESUMEN
Tomando como muestra la población que asiste por cualquier motivo al Hospital Regional 1o. de Octubre, se aplicó un cuestionario en forma individual con el fin de investigar el grado de ideación suicida (SIS-Q), el cual explora los siguientes parámetros: 1) Trastornos del sueño, 2) trastornos del ánimo, 3) sentimientos de culpa y 4) minusvalía. La población se dividió en ocho grupos: I, sujetos con trastornos del sueño; II, con trastornos del ánimo; II, con sentimiento de culpabilidad; IV, con minusvalía; V, con trastornos del sueño y de la conducta; VI, con depresión; VII, con franca ideación suicida, y VIII, personas sin ninguna alteración. Se estudió una población total de 1,000 pacientes, de los cuales 675 (67.5 por ciento) correspondieron al sexo masculino y 325 (32.5 por ciento) al sexo femenino, cuya edad osciló entre 15 y 81 años, con una media de 48. Setenta y nueve de los sujetos encuestados (12.2 por ciento) presentaron franca ideación suicida, siendo 27 (4.1 por ciento) hombres y 52 (8.0 por ciento) mujeres, con predominio en el grupo de mujeres de 35.44 años, con 14 casos (17.7 por ciento), y la mayor frecuencia se presentó en hombre de 45-54 años con seis casos (7.5 por ciento). El 9.1 por ciento (59) de los encuestados tuvieron depresión, 21 (3.2 por ciento) hombres y 38 (5.9 por ciento) mujeres. Se encontró una mayor frecuencia en el grupo de mujeres de 35-44 añois, con 11 casos, y en varones de 45-54 años con seis casos (1.6 por ciento). Del grupo estudiado, 152 personas (23.6 por ciento) manifestaron trastornos del sueño, 51 (7.8 por ciento) hombres y 93 (15.6 por ciento) mujeres, en donde la edad que predominó en uno y otro sexo fue de 35-44 años; en el resto de la población, 60 (9.3 por ciento) casos cursaron con trastornos del ánimo, el 2.9 por ciento (19) presentó sentimiento de culpa y 11 (1.7 por ciento) minusvalía. Llamó la atención que de una población aparentemente sana se encuentra que 12.2 por ciento presenten franca ideación suicida y 9.16 por ciento cursen con criterios mayores para depresión, que es el factor más importante asociado al suicidio
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Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Deluciones/epidemiología , Deluciones/psicología , Depresión/epidemiología , Depresión/psicología , Intento de Suicidio/psicología , Intento de Suicidio/estadística & datos numéricos , Conductas Terapéuticas Homeopáticas , Trastornos del Sueño-Vigilia/diagnóstico , Trastornos del Sueño-Vigilia/epidemiologíaRESUMEN
Antecedentes. El intento de suicidio es una de las 10 principales causas de ingreso a una sala de urgencias. En nuestro hospital hemos encontrado que constituye una de las causas primordiales de morbilidad en pacientes jóvenes, que afectan sobre todo a mujeres entre los 15 y los 24 años. Objetivo. Determinar las características socioeconómicas del paciente adulto con intento de suicidio, que ingresa a la sala de urgencias de acuerdo con edad y sexo. Material y métodos. Se incluyeron en el estudio 101 pacientes que intentaron suicidarse; dicho grupo de estudio se conformó de hombres y mujeres mayores de 15 años que ingresaron entre el primero de marzo de 1996 al 15 de septiembre de 1997. En forma individual se les aplicó la cédula de Mad Master para estudio socieconómico de pacientes con intento suicida, una vez recabados los datos se procedió a analizarlos. Resultados. Se estudiaron 101 pacientes, 71 mujeres y 30 hombres, cuya edad promedio fue de 39.5 años. En 76 casos constituyó el primer episodio, en 22 de ellos , se detectó como segundo o tercer reintento y tres consumaron el acto. El método más utilizado en hombre y en mujeres fue la ingestión de medicamentos. En este grupo predominaron los solteros y casados en comparación con los viudos, divorciados y en los que vivían unión libre. La mayoría de los sujetos eran estudiantes con un grado máximo de estudios de bachillerato. En cuanto a las características de la familia, la mayoría provenía de una familia nuclear, pero con un patron de autoridad rígido y con comunicación oscura y enmascarada. El déficit económico que se encontró se estimó entre 20 y 30 por ciento, y la mayor parte de las familias percibía entre tres y cuatro salarios mínimos. El factor emocional fue el que originó el intento suicida. Conclusiones. El número de casos por intento de suicidio se ha incrementado con los últimos cinco años. Nuestra población de estudio en su mayoría conrrespondió a mujeres de la tercera década de la vida, estudiante de bachillerato, soltera, provenientes de familia nuclear, cuya autoridad intrafamiliar era rígida y con comunicación oscura y enmascarada, lo que originó el conflicto y la desintegración de ésta. Todos los pacientes utilizaron como método para el intento ingestión de medicamentos