Comparative Effectiveness of COVID-19 Vaccines in Preventing Infections and Disease Progression from SARS-CoV-2 Omicron BA.5 and BA.2, Portugal.

We estimated comparative primary and booster vaccine effectiveness (VE) of SARS-CoV-2 Omicron BA.5 and BA.2 lineages against infection and disease progression. During April-June 2022, we implemented a case-case and cohort study and classified lineages using whole-genome sequencing or spike gene target failure. For the case-case study, we estimated the adjusted odds ratios (aORs) of vaccination using a logistic regression. For the cohort study, we estimated VE against disease progression using a penalized logistic regression. We observed no reduced VE for primary (aOR 1.07 [95% CI 0.93-1.23]) or booster (aOR 0.96 [95% CI 0.84-1.09]) vaccination against BA.5 infection. Among BA.5 case-patients, booster VE against progression to hospitalization was lower than that among BA.2 case-patients (VE 77% [95% CI 49%-90%] vs. VE 93% [95% CI 86%-97%]). Although booster vaccination is less effective against BA.5 than against BA.2, it offers substantial protection against progression from BA.5 infection to severe disease.

Lowered national cesarean section rates after a concerted action.

OBJECTIVE: To evaluate national cesarean section (CS) rates and other obstetric indicators after a concerted action to reduce CS rates was undertaken in Portugal from 2010 onwards. This action was based on the transmission of information and training of healthcare professionals, together with the inclusion of CS rates as a criterion for hospital funding. DESIGN: Retrospective observational population-based study. SETTING: Portugal. POPULATION: Births occurring in Portugal between 2000 and 2014. METHODS: Governmental sources were used to obtain data on national CS, perinatal and maternal mortality rates. Rates of instrumental vaginal delivery, vaginal birth after cesarean (VBAC), hypoxia-related complications and perineal lacerations were retrieved for state-owned hospitals. MAIN OUTCOME MEASURES: CS, perinatal and maternal mortality, instrumental vaginal delivery, VBAC, hypoxia-related complications and perineal lacerations. RESULTS: After a continuous rise between 2000 and 2009, national CS rates declined significantly over the following 5 years (36.6% vs. 33.1%, time trend p ≤ 0.001). Perinatal mortality maintained a downward trend during this period, while maternal mortality remained unchanged. Rates of instrumental vaginal delivery, VBAC and perineal lacerations increased, while the incidence of hypoxia-related complications decreased. CONCLUSIONS: A concerted action based on the transmission of information and training of healthcare professionals, together with the inclusion of CS rates as a criterion for hospital funding, was followed by a significant reduction in national CS rates, as well as an improvement in most related obstetric indicators. There may be an association between the reported intervention and the observed changes.

Forecasting Brassica napus production under climate change with a mechanistic species distribution model.

Brassica napus, a versatile crop with significant socioeconomic importance, serves as a valuable source of nutrition for humans and animals while also being utilized in biodiesel production. The expansion potential of B. napus is profoundly influenced by climatic variations, yet there remains a scarcity of studies investigating the correlation between climatic factors and its distribution. This research employs CLIMEX to identify the current and future ecological niches of B. napus under the RCP 8.5 emission scenario, utilizing the Access 1.0 and CNRM-CM5 models for the time frame of 2040-2059. Additionally, a sensitivity analysis of parameters was conducted to determine the primary climatic factors affecting B. napus distribution and model responsiveness. The simulated outcomes demonstrate a satisfactory alignment with the known current distribution of B. napus, with 98% of occurrence records classified as having medium to high climatic suitability. However, the species displays high sensitivity to thermal parameters, thereby suggesting that temperature increases could trigger shifts in suitable and unsuitable areas for B. napus, impacting regions such as Canada, China, Brazil, and the United States.

PEGylation Strategy for Improving the Pharmacokinetic and Antitumoral Activity of the IL-2 No-alpha Mutein.

BACKGROUND: In a previous work, an IL-2Rßγ biased mutant derived from human IL-2 and called IL-2noα, was designed and developed. Greater antitumor effects and lower toxicity were observed compared to native IL-2. Nevertheless, mutein has some disadvantages, such as a very short half-life of about 9-12 min, propensity for aggregation, and solubility problems. OBJECTIVE: In this study, PEGylation was employed to improve the pharmacokinetic and antitumoral properties of the novel protein. METHODS: Pegylated IL-2noα was characterized by polyacrylamide gel electrophoresis, size exclusion chromatography, in vitro cell proliferation and in vivo cell expansion bioassays, and pharmacokinetic and antitumor studies. RESULTS: IL-2noα-conjugates with polyethylene glycol (PEG) of 1.2 kDa, 20 kDa, and 40 kDa were obtained by classical acylation. No significant changes in the secondary and tertiary structures of the modified protein were detected. A decrease in biological activity in vitro and a significant improvement in half-life were observed, especially for IL-2noα-PEG20K. PEGylation of IL-2noα with PEG20K did not affect the capacity of the mutant to induce preferential expansion of T effector cells over Treg cells. This pegylated IL-2noα exhibited a higher antimetastatic effect compared to unmodified IL-2noα in the B16F0 experimental metastases model, even when administered at lower doses and less frequently. CONCLUSION: PEG20K was selected as the best modification strategy, to improve the blood circulation time of the IL-2noα with a superior antimetastatic effect achieved with lower doses.

High frequency of osteoporosis and fractures in women with dermatomyositis/polymyositis.

Bone mass was only previously studied in juvenile dermatomyositis/polymyositis (DM/PM) patients. Therefore, the objective this study was to evaluate the prevalence of osteoporosis and fractures in adult DM/PM. Forty female DM/PM and 78 age-, gender-, and BMI-matched healthy controls were studied. Medical charts and clinical interviews of all patients were evaluated for demographic and clinical data, including disease activity, cumulative doses of glucocorticoid, menarche and menopause age, and fractures. Bone mineral density (BMD) using dual X-ray absorptiometry (DXA) were measured at lumbar spine (L1-L4) and hip. A decreased BMD in lumbar spine [0.902 (0.136) vs. 0.965 (0.141) g/cm(2), P = 0.022] and femoral neck [0.729 (0.12) vs. 0.784 (0.127) g/cm(2), P = 0.027] was observed in patients compared to controls. In addition, osteoporosis was more frequent in patients than in controls in both lumbar spine (20 vs. 3.8%, P = 0.007) and the femoral neck (27.5 vs. 10.3%, P = 0.016). Moreover, a high prevalence of fractures was found in patients in comparison to healthy subjects (17.9 vs. 5.1%, P = 0.040; OR = 3.92; CI 95%:1.07-14.33). Comparing DM/PM patients with (n = 17) and without (n = 23) osteoporosis/fractures, significant differences were observed regarding age [56.8 (11.9) vs. 48.3 (13.2) years, P = 0.042], weight [62.05 (13.56) vs. 71.51 (11.46) kg, P = 0.022] and frequency of post menopausal women (94.1 vs. 65.2%, P = 0.0002). No differences were observed concerning height, lean mass, total fat mass, disease activity, mean value of creatine kinase, cumulative glucocorticoid dose, or bisphosphonate use. Logistic regression analysis revealed a negative association between the presence of osteoporosis/fractures and weight (OR: 0.92, 95% CI: 0.85-0.98; P = 0.016). This is the first study that analyzed bone mass in adult DM/PM patients and it demonstrated that about one quarter of these patients have osteoporosis/fracture.

The impact of anemia on treatment management and clinical outcomes of women hospitalized for uterine leiomyomas.

OBJECTIVES: Uterine leiomyomas are the most common benign gynecological tumors. Symptomatic leiomyomas represent a major cause of hospitalization, particularly those associated with abnormal uterine bleeding (AUB) and anemia. The aim of this study was to identify predictors of anemia in women hospitalized due to uterine leiomyomas and evaluate its impact on treatment management and clinical outcomes. MATERIAL AND METHODS: Population-based retrospective study of women hospitalized for uterine fibroids in public hospitals in mainland Portugal between 2010 and 2015. Data were extracted from the national database of the Central Administration of the Portuguese Health System. Comparative and multivariable logistic regression analysis was performed to assess outcomes. RESULTS: A total of 36 295 patients were hospitalized due to uterine leiomyomas during this period. Of those, 11.5% presented with anemia. Age, obesity, intramural type of leiomyoma and AUB are independent predictors of anemia (p < 0.001, AUC 0.7056). Anemia was associated with a high risk of inpatient hospitalization (OR: 5.161, 95% CI: 4.376-6.085), urgent admission (OR: 1.953, 95% CI: 1.797-2.121), radical surgical approach (OR: 2.559, 95% CI: 2.298-2.849), laparoscopic hysterectomy (OR: 1.575, 95% CI: 1.393-1.780) and intra- and post-operative complications (OR: 5.285, 95% CI: 4.332-6.448). It was also associated with longer hospital stays (p < 0.001). These outcomes were more pronounced in acute anemic patients. CONCLUSIONS: Anemia has a significant impact on treatment approaches and clinical outcomes of women hospitalized for uterine leiomyomas. Age, obesity, intramural leiomyomas and AUB are some predictors of anemia that could represent a risk-stratification opportunity, allowing for its prompt identification and correction, therefore improving patient care.

Mandibular function is severely impaired in systemic sclerosis patients.

AIMS: To evaluate the presence of temporomandibular disorders (TMD) in systemic sclerosis (SSc) patients and its possible association with the severity of skin involvement. METHODS: The presence of TMD was evaluated in 35 SSc women and 30 age- and sex-matched healthy controls by means of the anamnestic (A(i)) and clinical (D(i)) Helkimo indices; the jaw mobility was further analyzed (M(I)). Skin involvement was scored by the Modified Rodnan Skin Score (MRSS). RESULTS: Signs and symptoms of TMD were more frequent in SSc patients than in controls, the frequency distribution of the different clinical dysfunction indices differing significantly (P < .001) between patients (D(i)0 8.6%, D(i)I 48.6%, D(i)II 22.8%, and D(i)III 20%) and controls (D(i)0 50%, D(i)I 33.3%, and D(i)II 16.7%). Cyclophosphamide for severe and rapidly progressive cutaneous fibrosis was prescribed in six out of seven patients with severe signs (D(i)III), in contrast this treatment was indicated for only two out of 25 patients with mild to moderate signs (D(i)I and D(i)II, P < .001). Impaired jaw mobility was more frequent in SSc patients than controls (P < .001). It was severe in 77.1% (M(I)II) and mild in 22.9% (M(I)I) of the cases, in contrast to controls (M(I)0 33.4%, M(I)I 53.3%, and M(I)II 13.3%; P < .001). Approximately half of SSc patients with severe (M(I)II) but none of those with mild impairment were on cyclophosphamide treatment for severe cutaneous fibrosis (P = .02). CONCLUSION: Severe signs of TMD according to the anamnestic and clinical Helkimo indices were very frequent in SSc patients.

National trends and determinants of hospitalization for uterine leiomyomas - Portuguese public database analysis from 2000 to 2015.

OBJECTIVE: To determine the trends of hospitalization (inpatients and outpatients) for uterine leiomyomas in Portugal, over a period of fifteen years. STUDY DESIGN: We perform a population- and register-based retrospective study of women who were hospitalized with a primary diagnosis of uterine fibroid in public hospitals in continental Portugal, in the period between January 1, 2000 and December 31, 2015. Patient data regarding hospital codes, admission and discharge dates, patient age, diagnosis, procedures and complications were extracted from the national database of Administração Central do Sistema de Saúde (ACSS). All calculations were performed with the STATA software, version 13.1. Categorical data were analysed by the χ2 test and the means of continuous variables were analysed with Student's t-test. Statistical significance was set at p < 0.05. RESULTS: Between 2000 and 2015, 102 476 patients were admitted to public hospitals in Portugal due to uterine leiomyomas. The majority were admitted to hospital for surgery: 73.6 % for hysterectomy and 13.0 % for myomectomy. During this period, the definitive treatment (hysterectomy) decreased from 83.2% to 63.0% (p < 0.001), with a change towards more conservative treatments such as myomectomies (6.4% to 22.6%, p < 0.001). Additionally, in women submitted to hysterectomy, laparoscopic and vaginal routes increased (1.1%-11.5%, p < 0.001 and 2.1%-4.0%, p < 0.001; respectively). Globally, there was a 14.3 % reduction in hospitalizations due to uterine fibroids and an increase in the outpatient rate (from 3.1% to 22.1%). The mean number of hospitalization days for inpatients also decreased (from 6.3 ± 4.1-4.0 ± 3.0, p < 0.001). Regarding urgently hospitalized women, 11.8 % required a blood transfusion. In women submitted to surgical procedures, 0.5 % had an intraoperative complication and 2.3 % a post-operative complication, directly related to the surgical procedure. CONCLUSION: There was a reduction in hospitalizations due to uterine fibroids and a change towards more conservative treatments.

Centrilobular fibrosis: an underrecognized pattern in systemic sclerosis.

BACKGROUND: The impressive association of lung involvement and gastroesophageal reflux in scleroderma raises the possibility of a cause-effect relationship. OBJECTIVES: To determine clinical, radiological and histopathological features of systemic sclerosis (SSc) patients according the presence or absence of centrilobular fibrosis (CLF). METHODS: Twenty-eight SSc patients with lung involvement were submitted to open lung biopsy and the specimens classified for the presence of CLF (bronchocentric distribution of the lesions and intraluminal matter according to the classification of idiopathic interstitial pneumonia). HRCT, pulmonary function tests and esophageal analysis were also performed. Subsequently, cyclophosphamide was introduced for the nonspecific interstitial pneumonia subgroup and antireflux treatment was intensified for isolated CLF patients. RESULTS: Isolated CLF was found in 21% of the biopsies and also found associated to nonspecific interstitial pneumonia in 84% of these patients. The other 3 cases had usual interstitial pneumonia, pulmonary hypertension and respiratory bronchiolitis-associated interstitial lung disease. The histopathological analysis revealed that all 6 patients with isolated CLF had the bronchocentric distribution and intraluminal basophilic content, with foreign bodies detected in one third of them. The central distribution of lung involvement on HRCT was found in 67% of these patients with a consistent patchy distribution (100%). Ground glass (67%) and consolidation (33%) were the predominant patterns found. The constant clinical finding in all isolated CLF cases was dyspnea, esophageal abnormalities and a moderate lung impairment (FVC: 63.83 +/- 16.31%; DLCO: 61.66 +/- 18.84%). Lung function parameters in isolated CLF patients remained stable after 1 year of exclusively intensive antireflux treatment (FVC, p = 0.23; DLCO, p = 0.59). CONCLUSIONS: The novel description of CLF pattern in SSc lung disease with peculiar histological, tomographic and clinical features will certainly contribute to a more appropriate therapeutic approach.

Experiência de retorno ao trabalho de mulheres que tiveram aborto espontâneo / Return to work experience of women who had gestational loss / Experiencia de regreso al trabajo de mujeres que tuvieron un aborto espontáneo

INTRODUÇÃO: O aborto espontâneo pode acarretar impactos psicossociais prolongados para a mulher. A presença de uma rede de apoio, inclusive no ambiente de trabalho, é essencial para o luto saudável, uma vez que o retorno às atividades laborais após o aborto é um evento significativo. OBJETIVO: Compreender a experiência de retorno ao trabalho de mulheres que tiveram aborto espontâneo. MÉTODO: Realizou-se uma pesquisa de natureza qualitativa, com três mulheres, maiores de 18 anos, residentes no Litoral Norte de estado da região Sul do Brasil, que se encontravam regularmente empregadas durante e após a gestação e que tiveram aborto espontâneo nos últimos 2 anos. Como instrumento para a coleta de dados, foi utilizada a entrevista semiestruturada e os dados coletados foram analisados pela análise de conteúdo. RESULTADOS: Os resultados demonstraram que o contexto laboral carece de preparo para receber a mulher enlutada, seja enquanto recursos organizacionais como pessoais. CONCLUSÃO: Destaca-se a importância da implementação, nas organizações, de ações que promovam o acolhimento da mulher após o aborto espontâneo.

| INTRODUCTION: Gestational loss can lead to prolonged psychosocial impacts for the woman. The presence of a support network, including in the workplace, is essential for healthy grieving, since returning to work after a miscarriage is a significant event. OBJECTIVE: This study aimed to understand the experience of returning to work of women who had a pregnancy loss. METHOD: A qualitative research was conducted with three women, over 18 years old, residents on the North Coast of a state in the Southern region of Brazil, who were regularly employed during and after pregnancy and who had a miscarriage in the last 2 years. As an instrument for data collection, a semi-structured interview was employed, and the data collected was analyzed by content analysis. RESULTS: The results showed that the labor context lacks preparation to receive the bereaved woman, both as organizational and personal resources. CONCLUSION: It is worth highlighting the importance of implementing, in organizations, actions that promote the support of women after gestational loss.

| INTRODUCCIÓN: El aborto espontáneo puede tener impactos psicosociales prolongados en las mujeres. La presencia de una red de apoyo, incluso en el lugar de trabajo, es fundamental para un duelo saludable, ya que el retorno a las actividades laborales después de un aborto es un evento significativo. OBJETIVO: Comprender la experiencia de retorno al trabajo de mujeres que han sufrido un aborto espontáneo. MÉTODO: Se realizó una investigación cualitativa con 3 mujeres, mayores de 18 años, residentes en la costa norte de un estado de la región sur de Brasil, que trabajaban regularmente durante y después del embarazo y que habían experimentado un aborto espontáneo en los últimos 2 años. Como instrumento para la recolección de datos se utilizó la entrevista semiestructurada y los datos recolectados fueron analizados mediante análisis de contenido. RESULTADOS: Los resultados demostraron que el contexto laboral carece de preparación para recibir a la mujer en duelo, ya sea como recursos organizacionales o personales. CONCLUSIÓN: Se destaca la importancia de implementar, en las organizaciones, acciones que promuevan la acogida de las mujeres después de un aborto espontáneo.

Ecotoxicological effects of lanthanum in Mytilus galloprovincialis: Biochemical and histopathological impacts.

Inappropriate processing and disposal of electronic waste contributes to the contamination of aquatic systems by various types of pollutants such as the rare-earth elements (REE) in which lanthanum (La) is included. Knowledge on the toxicity of these elements in marine organisms is still scarce when compared to other metals such as mercury (Hg) and arsenic (As). Therefore, this study aims to assess the toxicity of La on the mussel Mytilus galloprovincialis, considered a good bioindicator of aquatic pollution, through the analysis of metabolic, oxidative stress, neurotoxicity and histopathological markers. Organisms were exposed to different concentrations of La for a period of 28 days (0, 0.1, 1, 10 mg/L) under controlled temperature (18 °C ± 1.0) and salinity (30 ± 1) conditions. La concentrations in mussels increased in higher exposure concentrations. La exposure demonstrated a biochemical response in mussels, evidenced by lowered metabolism and accumulation of energy reserves, activation of the antioxidant defences SOD and GPx as well as the biotransformation enzymes GSTs, especially at intermediate concentrations. Despite oxidative stress being shown by a decrease in GSH/GSSG, oxidative damage was avoided as evidenced by lower LPO and PC levels. Inhibition of the enzyme AChE demonstrated the neurotoxicity of La in this species. Histopathological indices were significantly different from the control group, indicating impacts in gonads, gills and digestive glands of mussels due to La. These results show that La can be considered a risk for marine organisms and thus its discharge into the environment should be monitored.

Giant aneurysm of the main pulmonary artery: case report.

Aneurysm of the main pulmonary artery is a rare condition which has been reported in association with various underlying pathologies. Its natural history has not been fully defined, and medical management remains controversial. The authors report the case of a 71-year-old man, who presented in the Emergency Department with left chest pain, cough and dyspnea. Chest X-ray revealed enlargement of the upper mediastinum. Complementary examinations, including a pulmonary angiogram, revealed the presence of a giant pulmonary artery aneurysm. The patient was conservatively managed. He was discharged home in good general condition, to be followed up by CT scan and two-dimensional echocardiography. Two years later, the patient's clinical condition is good, with no signs of vascular deterioration.

Spontaneous pneumomediastinum and dermatomyositis may be a not so rare association: report of a case and review of the literature.

One patient with dermatomyositis (DM) who developed spontaneous pneumomediastinum (SPnM) is described. A review of 15 previously reported cases shows that this is a complication of DM but not of polymyositis. It occurs in young patients with recent onset of disease characterized by cutaneous vasculopathy, and patients treated with immunosuppressive drugs have, in general, better outcomes. We suggest that the onset of SPnM in DM patients must alert to possible vasculitic activity and that immunosuppressive agents with progressive tapering of corticosteroids are part of the most reasonable approach in these cases.

Hysterectomies in Portugal (2000-2014): What has changed?

OBJECTIVE: To describe conditions regarding hysterectomies during the past 15 years in Portugal. STUDY DESIGN: Nationwide retrospective study of women who underwent hysterectomy in Portuguese public hospitals in the period between 2000 and 2014. Patient data regarding hospital codes, geography, patient age, indications, operative techniques, associated procedures, complications, admission dates, discharge dates and 30-day postoperative readmissions were extracted from the national database with information regarding all public hospitals in Portugal. For calculation of hysterectomy rates, the total number of women was found using the Statistics Portugal website. Data were analysed using STATA version 13.1. RESULTS: A total of 166 177 hysterectomies were performed between 2000 and 2014 in public hospitals in Portugal. The overall rate of hysterectomy decreased 19.3% (from 212/100 000 to 171/100 000 women per year). The average age of women at time of hysterectomy increased from 51.6±11.4 to 55.2±12.3years (p<0.001). There was an increase in laparoscopic [1.2%-9.5%, p<0.001] and vaginal route [13.3%-21.2%, p<0.001], with a consequent decrease in laparotomic route [85.5%-69.1%, p<0.001]. There was a change in the pattern of indications for hysterectomy; however, uterine fibroids remain the major indication for hysterectomy [45.3%-37.6%, p<0.001]. In women with hysterectomy for benign pathology, the rate of bilateral adnexectomy decreased from 71.0% to 51.9% (p<0.001) and the rate of bilateral salpingectomy increased from 1.0% to 15.1% (p<0.001). The mean number of hospitalization days decreased from 7.1±6.1 (in 2000-2004) to 5.4±5.0 (in 2010-2014) (p<0.001). Globally, the rate of complications increased from 3.3% in 2000-2004 to 3.6% in 2010-2014 (p<0.01). CONCLUSION: In Portugal, the rate of hysterectomies decreased in the last 15 years with an increase in age at the time of the procedure and a change towards less invasive routes. Uterine fibroids remain the major indication for hysterectomy. Additionally, we noted a significant shift towards more concomitant bilateral salpingectomy (and less bilateral adnexectomy) during hysterectomy for benign indications, according to the evidence suggesting the fallopian tube as the origin of ovarian cancer.

Vulnerabilidade, família e o uso de drogas: uma revisão integrativa de literatura / Vulnerability, family and drug use: an integrating literature review / Vulnerabilidad, familia y el uso de drogas: una revisión integral de literatura

Os problemas relacionados ao uso de álcool e outras drogas é uma realidade na sociedade atual e revela a existência de diferentes fatores relacionados. Entre eles, destaca-se a condição de vulnerabilidade como importante elemento contribuinte para o uso abusivo, bem como a família, sendo entendida como fator de risco e/ou proteção e como sistema diretamente afetado pelo problema. Diante disso, este estudo teve como objetivo realizar uma revisão integrativa de literatura sobre a relação entre vulnerabilidade, drogas e contexto familiar. Para tanto, foi realizada uma busca por artigos nas bases de dados Scielo e BVS utilizando os descritores "vulnerabilidade AND drogas AND família" que rastreou um total de 105 artigos. Após a aplicação dos critérios de inclusão, restaram 22 artigos. Desses, sete envolveram adolescentes escolares, cinco pessoas em situação de rua e cinco familiares de usuários, quatro foram realizados com os próprios usuários de drogas e um com profissionais da saúde. Os resultados das análises dos estudos sugerem que a relação entre uso de drogas, família e condição de vulnerabilidade é intrínseca, sendo difícil analisá-los isoladamente. A compreensão do problema das drogas requer uma visão ampliada e sistêmica de todos os fatores envolvidos neste complexo processo para ser possível o planejamento e a qualificação das políticas públicas.

The problems related to the use of alcohol and other drugs are a reality in today's society and reveal the existence of different related factors. Among them, the condition of vulnerability stands out as an important contributing element to abusive use, as well as family context, being understood as a risk and/or protective factor and as a system directly affected by the problem. Therefore, this study aimed to carry out an integrative literature review on the relationship between vulnerability, drugs and family. For this, a search for articles in the Scielo and VHL databases was carried out combining the descriptors "AND drugs AND family vulnerability", which tracked a total of 105 articles. After using the inclusion criteria, there were 22 articles remaining to be analyzed. From the 22 studies, seven involved school adolescents, five with street people, five with family members, four with drug users and one with health professionals. Results have shown that the relationship between drug use, family and vulnerability is intrinsic, making it difficult to analyze them in isolation. Understanding the drug problem requires an expanded and systemic view of all factors involved in this complex process in order to plan and qualify public policies.

Los problemas relacionados con el uso de alcohol y otras drogas es una realidad en la sociedad actual y revela la existencia de diferentes factores constitutivos y activos para determinar el fenómeno. Entre éstos, la condición de vulnerabilidad se destaca como un contribuyente importante al uso abusivo, así como a la familia, que se entiende como un factor de riesgo y / o protección y como un sistema directamente afectado por el problema. Por lo tanto, este estudio tuvo como objetivo realizar una revisión bibliográfica integradora sobre la relación entre vulnerabilidad, drogas y contexto familiar. Para este fin, se realizó una búsqueda de artículos en las bases de datos Scielo y BVS apoyada en la combinación de los descriptores "vulnerabilidad Y drogas Y familia" que rastrearon un total de 105 artículos. Después de aplicar los criterios de inclusión, quedaron 22 artículos, que fueron analizados en su totalidad. De éstos, siete se llevaron a cabo con adolescentes escolares, cinco con personas sin hogar, cinco con familiares de usuarios, cuatro con consumidores de drogas y uno con profesionales de la salud. Los resultados del análisis de los estudios sugieren que la relación entre el consumo de drogas, la familia y la condición de vulnerabilidad es intrínseca, lo que dificulta su análisis de forma aislada. Comprender el problema de las drogas requiere una visión ampliada y sistémica de todos los factores involucrados en este complejo proceso, para que sea posible planificar y calificar las políticas públicas.

Nodular glomerulosclerosis in a non-diabetic hypertensive, dyslipidemic, smoker patient: a case report.

INTRODUCTION: This is a case report of a patient with idiopathic nodular glomerulosclerosis whose pathogenesis and morphology are similar to diabetic nephropathy. CASE PRESENTATION: A 64-year-old Brazilian man, leukoderma, dyslipidemic, obese with chronic obstructive pulmonary disease secondary to tobacco smoking, known to be hypertensive for five years and he had no history of diabetes. He was admitted with sudden anasarca, rapid loss of renal function and needed to start hemodialysis immediately. Renal biopsy was performed, and the sections were examined by light microscopy, immunofluorescence and electron microscopy. Morphological and ultrastructural findings showed that the profile of the disease studied herein strongly resembles diabetic nephropathy. However, the absence of diabetes mellitus, the presence of arteriolar hyalinosis in renal arterioles, tobacco smoking, and other clinical factors observed can play a significant role in nodular formation. CONCLUSION: The clinical features of the patient, and most importantly, the fact that he is a smoker, favor the diagnosis of "nodular glomerulosclerosis associated with smoking", a nomenclature proposed by some authors as an alternative to the term idiopathic nodular glomerulosclerosis. This clinical case report highlights idiopathic nodular glomerulosclerosis as a rare disease of little known etiopathogenesis; thus, further studies are necessary in order to elucidate the causes of this disease.

miR-155 in the progression of lung fibrosis in systemic sclerosis.

BACKGROUND: MicroRNA (miRNA) control key elements of mRNA stability and likely contribute to the dysregulated lung gene expression observed in systemic sclerosis associated interstitial lung disease (SSc-ILD). We analyzed the miRNA gene expression of tissue and cells from patients with SSc-ILD. A chronic lung fibrotic murine model was used. METHODS: RNA was isolated from lung tissue of 12 patients with SSc-ILD and 5 controls. High-resolution computed tomography (HRCT) was performed at baseline and 2-3 years after treatment. Lung fibroblasts and peripheral blood mononuclear cells (PBMC) were isolated from healthy controls and patients with SSc-ILD. miRNA and mRNA were analyzed by microarray, quantitative polymerase chain reaction, and/or Nanostring; pathway analysis was performed by DNA Intelligent Analysis (DIANA)-miRPath v2.0 software. Wild-type and miR-155 deficient (miR-155ko) mice were exposed to bleomycin. RESULTS: Lung miRNA microarray data distinguished patients with SSc-ILD from healthy controls with 185 miRNA differentially expressed (q < 0.25). DIANA-miRPath revealed 57 Kyoto Encyclopedia of Genes and Genomes pathways related to the most dysregulated miRNA. miR-155 and miR-143 were strongly correlated with progression of the HRCT score. Lung fibroblasts only mildly expressed miR-155/miR-21 after several stimuli. miR-155 PBMC expression strongly correlated with lung function tests in SSc-ILD. miR-155ko mice developed milder lung fibrosis, survived longer, and weaker lung induction of several genes after bleomycin exposure compared to wild-type mice. CONCLUSIONS: miRNA are dysregulated in the lungs and PBMC of patients with SSc-ILD. Based on mRNA-miRNA interaction analysis and pathway tools, miRNA may play a role in the progression of the disease. Our findings suggest that targeting miR-155 might provide a novel therapeutic strategy for SSc-ILD.

Galectin-9 as an important marker in the differential diagnosis between oral squamous cell carcinoma, oral leukoplakia and oral lichen planus.

OBJECTIVES: To evaluate the expression of Galectins (Gal) 1, 3 and 9, Metalloproteinase 3 (MMP-3) and mast cell density in oral lesions of patients with potentially malignant disorders (PMD) and oral squamous cell carcinomas (OSCC) by comparison with the controls. STUDY DESIGN: We selected 40 cases of PMD, 40 OSCC and 13 with normal histopathological profile. Immunohistochemistry was performed for Gal-1, Gal-3, Gal-9 and MMP-3. RESULTS: Gal-9 was significantly higher in patients with OSCC than in others groups (p < 0.001). Gal-1 expression was significantly lower in patients with leukoplakia than those with OSCC and controls (p = 0.0001). Gal-3 was significantly lower in patients with OSCC than those with leukoplakia (p = 0.03). MMP-3 was lower in patients with leukoplakia in comparison with the lichen planus group (p = 0.013). CONCLUSION: The increased expression of Gal-9 may be helpful to differentiate of OSCC from other oral cavity lesions.

Behavior of Schistosoma mansoni-induced histopathological lesions in Biomphalaria glabrata submitted to ionizing radiation.

Present report demonstrates that repeated radiation of Schistosoma mansoni-infected Biomphalaria glabrata, totaling 15,000 rads, caused a sudden, albeit transient, suppression of cercarial shedding. Initially, sporocysts practically disappeared from the snail tissues. The more resistant developing cercariae presented nuclear clumping and vacuolation, before undergoing lysis. No host tissue reaction was evident at any time. Thirty-four days after the last irradiation, the snails resumed cercarial elimination. By that time numerous sporocysts and developing cercariae were detected, disseminated throughout snail tissues in a pattern similar to that of a highly malignant neoplasm, with no signs of host cellular reactions, which on the other hand were present in non-irradiated infected controls. The region of the ovo-testis was apparently destroyed after radiation, but returned to its normal appearance around 40 days after the last radiation. Ionizing radiation affected both host and parasite in S. mansoni-infected Biomphalaria glabrata, but the resulting impressive changes were soon reversed.