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1.
Eur J Endocrinol ; 190(6): 458-466, 2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38771697

RESUMO

OBJECTIVE: The aim of this study is to compare the response to first-line medical treatment in treatment-naive acromegaly patients with pure growth hormone (GH)-secreting pituitary adenoma (GH-PA) and those with GH and prolactin cosecreting PA (GH&PRL-PA). DESIGN: This is a retrospective multicentric study of acromegaly patients followed from 2003 to 2023 in 33 tertiary Spanish hospitals with at least 6 months of first-line medical treatment. METHODS: Baseline characteristics, first-line medical treatment strategies, and outcomes were analyzed. We employed a multiple logistic regression full model to estimate the impact of some baseline characteristics on disease control after each treatment modality. RESULTS: Of the 144 patients included, 72.9% had a GH-PA, and 27.1% had a GH&PRL-PA. Patients with GH&PRL-PA were younger (43.9 ± 15.0 vs 51.9 ± 12.7 years, P < .01) and harboring more frequently macroadenomas (89.7% vs 72.1%, P = .03). First-generation somatostatin receptor ligand (fgSRL) as monotherapy was given to 106 (73.6%) and a combination treatment with fgSRL and cabergoline in the remaining 38 (26.4%). Patients with GH&PRL-PA received more frequently a combination therapy (56.4% vs 15.2%, P < .01). After 6 months of treatment, in the group of patients under fgSRL as monotherapy, those patients with GH&PRL-PA had worse control compared to GH-PAs (29.4% vs 55.1%, P = .04). However, these differences in the rate of disease control between both groups disappeared when both received combination treatment with fgSRL and cabergoline. CONCLUSION: In GH&PRL-PA, the biochemical control achieved with fgSRL as monotherapy is substantially worse than in patients harboring GH-PA, supporting the inclusion of cabergoline as first-line medical treatment in combination with fgSRLs in these subgroups of patients.


Assuntos
Acromegalia , Cabergolina , Prolactina , Humanos , Acromegalia/tratamento farmacológico , Acromegalia/sangue , Feminino , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto , Cabergolina/uso terapêutico , Resultado do Tratamento , Prolactina/sangue , Adenoma Hipofisário Secretor de Hormônio do Crescimento/tratamento farmacológico , Adenoma Hipofisário Secretor de Hormônio do Crescimento/sangue , Adenoma Hipofisário Secretor de Hormônio do Crescimento/metabolismo , Hormônio do Crescimento Humano , Adenoma/tratamento farmacológico , Adenoma/sangue , Adenoma/metabolismo , Adenoma/complicações , Idoso , Quimioterapia Combinada , Somatostatina/análogos & derivados , Somatostatina/uso terapêutico , Neoplasias Hipofisárias/tratamento farmacológico , Neoplasias Hipofisárias/sangue , Neoplasias Hipofisárias/metabolismo , Neoplasias Hipofisárias/complicações , Espanha/epidemiologia
2.
Endocr Relat Cancer ; 31(7)2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38713182

RESUMO

The objective of the study was to evaluate the efficacy of second-line therapies in patients with acromegaly caused by a growth hormone (GH) and prolactin (PRL) co-secreting pituitary neuroendocrine tumor (GH&PRL-Pit-NET) compared to their efficacy in patients with acromegaly caused by a GH-secreting pituitary neuroendocrine tumor (GH-Pit-NET). This is a multicenter retrospective study of patients with acromegaly on treatment with pasireotide and/or pegvisomant. Patients were classified in two groups: GH&PRL-Pit-NETs when evidence of hyperprolactinemia and immunohistochemistry (IHC) for GH and PRL was positive or if PRL were >200 ng/dL regardless of the PRL-IHC and GH-Pit-NETs when the previously mentioned criteria were not met. A total of 28 cases with GH&PRL-Pit-NETs and 122 with GH-Pit-NETs met the inclusion criteria. GH&PRL-Pit-NETs presented at a younger age, caused hypopituitarism, and were invasive more frequently than GH-Pit-NETs. There were 124 patients treated with pegvisomant and 49 with pasireotide at any time. The efficacy of pegvisomant for IGF-1 normalization was of 81.5% and of pasireotide of 71.4%. No differences in IGF-1 control with pasireotide and with pegvisomant were observed between GH&PRL-Pit-NETs and GH-Pit-NETs. All GH&PRL-Pit-NET cases treated with pasireotide (n = 6) and 82.6% (n = 19/23) of the cases treated with pegvisomant normalized PRL levels. No differences in the rate of IGF-1 control between pegvisomant and pasireotide were detected in patients with GH&PRL-Pit-NETs (84.9% vs 66.7%, P = 0.178). We conclude that despite the more aggressive behavior of GH&PRL-Pit-NETs than GH-Pit-NETs, no differences in the rate of IGF-1 control with pegvisomant and pasireotide were observed between both groups, and both drugs have shown to be effective treatments to control IGF-1 and PRL hypersecretion in these tumors.


Assuntos
Acromegalia , Hormônio do Crescimento Humano , Tumores Neuroendócrinos , Prolactina , Somatostatina , Humanos , Somatostatina/análogos & derivados , Somatostatina/uso terapêutico , Masculino , Feminino , Hormônio do Crescimento Humano/análogos & derivados , Hormônio do Crescimento Humano/uso terapêutico , Pessoa de Meia-Idade , Adulto , Prolactina/sangue , Prolactina/metabolismo , Estudos Retrospectivos , Tumores Neuroendócrinos/tratamento farmacológico , Tumores Neuroendócrinos/metabolismo , Acromegalia/tratamento farmacológico , Acromegalia/metabolismo , Neoplasias Hipofisárias/tratamento farmacológico , Neoplasias Hipofisárias/metabolismo , Idoso , Adulto Jovem
3.
Artigo em Inglês | MEDLINE | ID: mdl-38436926

RESUMO

PURPOSE: To evaluate differences in clinical presentation and in surgical outcomes between growth hormone-secreting pituitary adenomas (GH-PAs) and GH and prolactin co-secreting pituitary adenomas (GH&PRL-PAs). METHODS: Multicenter retrospective study of 604 patients with acromegaly submitted to pituitary surgery. Patients were classified into two groups according to serum PRL levels at diagnosis and immunohistochemistry (IHC) for PRL: a) GH&PRL-PAs when PRL levels were above the upper limit of normal and IHC for GH and PRL was positive or PRL levels were >100ng/and PRL IHC was not available (n=130) and b) GH-PAs who did not meet the previously mentioned criteria (n=474). RESULTS: GH&PRL-PAs represented 21.5% (n=130) of patients with acromegaly. The mean age at diagnosis was lower in GH&PRL-PAs than in GH-PAs (P<0.001). GH&PRL-PAs were more frequently macroadenomas (90.6% vs. 77.4%, P=0.001) and tended to be more invasive (33.6% vs. 24.7%, P=0.057) than GH-PAs. Furthermore, they had presurgical hypopituitarism more frequently (OR 2.8, 95% CI 1.83-4.38). IGF-1 upper limit of normality (ULN) levels at diagnosis were lower in patients with GH&PRL-PAs (median 2.4 [IQR 1.73-3.29] vs. 2.7 [IQR 1.91-3.67], P=0.023). There were no differences in the immediate (41.1% vs 43.3%, P=0.659) or long-term post-surgical acromegaly biochemical cure rate (53.5% vs. 53.1%, P=0.936) between groups. However, there was a higher incidence of permanent arginine-vasopressin deficiency (AVP-D) (7.3% vs. 2.4%, P=0.011) in GH&PRL-PAs patients. CONCLUSIONS: GH&PRL-PAs are responsible for 20% of acromegaly cases. These tumors are more invasive, larger and cause hypopituitarism more frequently than GH-PAs and are diagnosed at an earlier age. The biochemical cure rate is similar between both groups, but patients with GH&PRL-PAs tend to develop permanent postsurgical AVP-D more frequently.

4.
Eur J Clin Microbiol Infect Dis ; 43(5): 863-873, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38438704

RESUMO

PURPOSE: Investigation of undiagnosed cases of infectious neurological diseases, especially in the paediatric population, remains a challenge. This study aimed to enhance understanding of viruses in CSF from children with clinically diagnosed meningitis and/or encephalitis (M/ME) of unknown aetiology using shotgun sequencing enhanced by hybrid capture (HCSS). METHODS: A single-centre prospective study was conducted at Sant Joan de Déu University Hospital, Barcelona, involving 40 M/ME episodes of unknown aetiology, recruited from May 2021 to July 2022. All participants had previously tested negative with the FilmArray Meningitis/Encephalitis Panel. HCSS was used to detect viral nucleic acid in the patients' CSF. Sequencing was performed on Illumina NovaSeq platform. Raw sequence data were analysed using CZ ID metagenomics and PikaVirus bioinformatics pipelines. RESULTS: Forty episodes of M/ME of unknown aetiology in 39 children were analysed by HCSS. A significant viral detection in 30 CSF samples was obtained, including six parechovirus A, three enterovirus ACD, four polyomavirus 5, three HHV-7, two BKV, one HSV-1, one VZV, two CMV, one EBV, one influenza A virus, one rhinovirus, and 13 HERV-K113 detections. Of these, one sample with BKV, three with HHV-7, one with EBV, and all HERV-K113 were confirmed by specific PCR. The requirement for Intensive Care Unit admission was associated with HCSS detections. CONCLUSION: This study highlights HCSS as a powerful tool for the investigation of undiagnosed cases of M/ME. Data generated must be carefully analysed and reasonable precautions must be taken before establishing association of clinical features with unexpected or novel virus findings.


Assuntos
Metagenômica , Vírus , Humanos , Pré-Escolar , Estudos Prospectivos , Feminino , Masculino , Criança , Vírus/genética , Vírus/isolamento & purificação , Vírus/classificação , Lactente , Metagenômica/métodos , Encefalite/virologia , Encefalite/líquido cefalorraquidiano , Encefalite/diagnóstico , Líquido Cefalorraquidiano/virologia , Meningite Viral/virologia , Meningite Viral/líquido cefalorraquidiano , Meningite Viral/diagnóstico , Adolescente , Sequenciamento de Nucleotídeos em Larga Escala , Espanha , Meningite/virologia , Meningite/líquido cefalorraquidiano , Meningite/diagnóstico , Encefalite Viral/virologia , Encefalite Viral/líquido cefalorraquidiano , Encefalite Viral/diagnóstico
5.
Life (Basel) ; 14(3)2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38541710

RESUMO

The association between Primary cutaneous CD4 small/medium T-cell lymphoproliferative disorder (PCSM-TCLPD) and COVID-19 immunization has been sparsely documented in the medical literature. Reviewing the literature, albeit infrequently, we can find cases of the recurrence and new onset of lymphoproliferative processes and cutaneous lymphomas following the COVID-19 vaccine. Many of the entities we encounter are classified as cutaneous lymphoproliferative disorders. The prevailing hypothesis suggests that the predominant cutaneous reactions to SARS-CoV-2 vaccines may stem from T-cell-mediated immune activation responses to vaccine components, notably messenger RNA (mRNA). Specifically, it is posited that the presence of cutaneous lymphoid infiltrates may be linked to immune system stimulation, supported by the absence, to date, of instances of primary cutaneous B-cell lymphoma following mRNA vaccination. Within this context, it is imperative to underscore that the etiological association between PCSM-TCLPD and COVID-19 vaccination should not discourage vaccination efforts. Instead, it underscores the necessity for continuous surveillance, in-depth investigation, and comprehensive follow-up studies to delineate the specific attributes and underlying mechanisms of such cutaneous manifestations post vaccination.

6.
PLoS One ; 18(12): e0296036, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38127927

RESUMO

INTRODUCTION: Meningoencephalitis in children poses a diagnostic challenge, as etiology remains unknown for most of patients. Viral metagenomics by shotgun sequencing represents a powerful tool for investigating unknown viral infections related to these cases. PATIENTS AND METHODS: In a two-year, reference-centre, retrospective study, we investigated the usefulness of viral metagenomics of cerebrospinal fluid (CSF) for the diagnosis of viral infectious meningoencephalitis in forty seven pediatric patients, forty of them previously tested negative with a routine neurologic panel of viral targets that included herpesvirus 1-3 and enterovirus. We enhanced the detection by targeting viral sequences by hybrid capture. Raw sequence data was analysed using three bioinformatics pipelines. RESULTS: Out of forty remaining children with meningoencephalitis of unknown viral etiology, a significant detection of viral nucleic acid by shotgun sequencing was found in twenty one, which was confirmed in ten of them by specific PCR: seven human endogenous retrovirus K113 (HER K113), one parechovirus 3, one human herpesvirus 5 (HHV5); one enterovirus B (Echovirus 9). The remaining eleven CSF were not confirmed by PCR: three rotavirus, one human herpesvirus 7 (HHV7), one influenza A, one mastadenovirus C, one sindbis virus, one torque teno virus, one human immunodeficiency virus 1 (HIV-1), one human alphaherpesvirus 3 (HHV3), one human alphaherpesvirus 2 (HHV2). CONCLUSIONS: Underutilization of currently available meningitis-encephalitis diagnostic techniques such as BioFire® FilmArray® is the main cause of undiagnosed cases of meningoencephalitis. However, in this study we detected uncommon viruses that should be considered, including virus, rotavirus, sindbis virus, influenza A virus and HHV7. No other viral sequences that could be readily linked to CNS inflammation were detected. Some findings may stem from reagent or sample contamination, as seen with papillomavirus; for others, the clinical relevance of the virus remains uncertain and should be substantiated by further studies, as is the case with endogenous retrovirus K113 virus. Online bioinformatics pipeline CZID represents a valuable tool for analysing shotgun sequencing data in cases of neurological conditions with unknown etiology. Altogether, this study highlights the potential of shotgun sequencing in identifying previously unknown viral neuropathogens and sheds light on the interpretation issues related to its application in clinical microbiology.


Assuntos
Meningoencefalite , Viroses , Vírus , Humanos , Criança , Estudos Retrospectivos , Meningoencefalite/diagnóstico , Vírus/genética , Viroses/complicações , Viroses/diagnóstico , Inflamação , Herpesvirus Humano 3 , Metagenômica/métodos
7.
Biomed Pharmacother ; 164: 115000, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37301136

RESUMO

Skin damage due to severe burns can compromise patient life. Current tissue engineering methods allow the generation of human skin substitutes for clinical use. However, this process is time-consuming, as the keratinocytes required to generate artificial skin have a low proliferation rate in culture. In this study, we evaluated the pro-proliferative effects of three natural biomolecules isolated from olive oil: phenolic extract (PE), DL-3,4-dihydroxyphenyl glycol (DHFG), and oleuropein (OLP), on cultured human skin keratinocytes. The results showed that PE and OLP increased the proliferation of immortalized human skin keratinocytes, especially at concentrations of 10 and 5 µg/mL, respectively, without altering cell viability. In contrast, DHFG did not produce a significant improvement in keratinocyte proliferation. In normal human skin keratinocytes obtained from skin biopsies, we found that PE, but not OLP, could increase the number of keratinocyte colonies and the area occupied by these cells. Furthermore, this effect was associated with increased KI-67 and Proliferating cell nuclear antigen (PCNA) gene expression. Thus, we propose that PE positively affects keratinocyte proliferation and could be used in culture protocols to improve bioartificial skin generation by tissue engineering.


Assuntos
Queratinócitos , Pele , Humanos , Azeite de Oliva/farmacologia , Células Cultivadas , Queratinócitos/metabolismo , Engenharia Tecidual
8.
Cir Esp (Engl Ed) ; 101(6): 408-416, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35671974

RESUMO

OBJECTIVES: The objective of this study was to assess the diagnostic performance of combined computerised tomography (CT) and positron emission tomography (PET) in mediastinal staging of surgical lung cancer based on data obtained from the prospective cohort of the Spanish Group for Video-Assisted Thoracic Surgery (GEVATS). METHODS: A total of 2782 patients underwent surgery for primary lung carcinoma. We analysed diagnostic success in mediastinal lymph node staging (cN2) using CT and PET. Bivariate and multivariate analyses were performed of the factors involved in this success. The risk of unexpected pN2 disease was analysed for cases in which an invasive testing is recommended: cN1, the tumour centrally located or the tumour diameter >3 cm. RESULTS: The overall success of CT together with PET was 82.9% with a positive predictive value of 0.21 and negative predictive value of 0.93. If the tumour was larger than 3 cm and for each unit increase in mediastinal SUVmax, the probability of success was lower with OR 0.59 (0.44-0.79) and 0.71 (0.66-0.75), respectively. In the video-assisted thoracic surgery (VATS) approach, the probability of success was higher with OR 2.04 (1.52-2.73). The risk of unexpected pN2 increased with the risk factors cN1, the tumour centrally located or the tumour diameter >3 cm: from 4.5% (0 factors) to 18.8% (3 factors) but did not differ significantly as a function of whether invasive testing was performed. CONCLUSIONS: CT and PET together have a high negative predictive value. The overall success of the staging is lower in the case of tumours >3 cm and high mediastinal SUVmax, and it is higher when VATS is performed. The risk of unexpected pN2 is higher if the disease is cN1, the tumour centrally located or the tumour diameter >3 cm but does not vary significantly as a function of whether patients have undergone invasive testing.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Humanos , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Cirurgia Torácica Vídeoassistida , Estudos Prospectivos , Estadiamento de Neoplasias , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/cirurgia , Neoplasias Pulmonares/patologia , Linfonodos/diagnóstico por imagem , Linfonodos/cirurgia , Linfonodos/patologia
9.
Infection ; 51(1): 181-191, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35753033

RESUMO

BACKGROUND: Listeriosis presents high rates of mortality but prognostic factors for early prevention are not well established. The aim of this study was to analyse factors associated with in-hospital and early mortality of adults after recovery from severe infection caused by Listeria monocytogenes. METHODS: All cases of listeriosis notified in the province of Granada from January 2005 to December 2021, including 9 centres, were included. Only laboratory confirmed non-neonatal cases were considered. Follow-up was conducted by accessing medical records and epidemiological data. Bivariate and multivariate analyses were conducted to detect potential risk factors associated to in-hospital mortality, 1-year, and 5-year early death after recovery. Multivariate Cox regression models were performed. A total of 206 patients were identified. RESULTS: The mean age was 62.6 years (sd, 18.8). A high frequency of comorbidities (88.3%) was observed, and 42 patients (20.4%) died during hospitalisation. Of the patients who recovered from acute infection, 26 (15.9%) died during the following year and 47 (28.7%) died during the following 5 years. The main factors associated with early mortality after recovery were age (HR: 1.03; 95% CI 1.02-1.07), diabetes mellitus (HR 1.86, 95% CI 1.01-3.44), chronic kidney disease (HR 3.96, 95% CI 1.87-8.38), liver disease (HR 3.62, 95% CI 1.64-8.51), and cancer (HR 3.76, 95% CI 1.90-7.46). CONCLUSION: Listeriosis is associated with high early post-recovery mortality. Our study describes the main prognostic factors, which may help to improve preventive follow-up strategies of adults with severe listeriosis.


Assuntos
Diabetes Mellitus , Listeria monocytogenes , Listeriose , Adulto , Humanos , Pessoa de Meia-Idade , Estudos Longitudinais , Listeriose/epidemiologia , Listeriose/diagnóstico , Fatores de Risco
10.
Foods ; 10(12)2021 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-34945556

RESUMO

Chia seeds are rich sources of different macro and micronutrients associated with health benefits; thus, they may be considered as a functional food. However, the composition depends on the variety, origin, climate and soil. Here, we show a comprehensive characterization of extractable and non-extractable phenolic compounds of dark chia seed Salvia hispanica L. using high-performance liquid chromatography-electrospray ionization-quadrupole time-of-flight (HPLC-ESI-QTOF) and discuss potential health benefits associated with the presence of a number of nutritional and bioactive compounds. We report that dark chia from Jalisco is a high-fiber food, containing omega-3 polyunsaturated fatty acids, essential amino acids (phenylalanine and tryptophan), and nucleosides (adenosine, guanidine and uridine), and rich in antioxidant phenolic compounds, mainly caffeic acid metabolites. Our data suggest that chia seeds may be used as ingredients for the development of functional foods and dietary supplements.

11.
Nutr Hosp ; 36(4): 962-973, 2019 Aug 26.
Artigo em Espanhol | MEDLINE | ID: mdl-31232581

RESUMO

INTRODUCTION: Milk and dairy products are key foods during all stages of life within a balanced Western diet. In recent decades, their consumption has decreased significantly. In parallel, an increase in some pathological alterations caused by the deficit of some micronutrients present in dairy products, mainly calcium and vitamin D, has been detected, resulting in a serious public health problem in certain groups of population. In order to avoid these deficiencies, foods enriched in these components have been launched into the market. Within them, enriched milks and dairy products stand out since they allow better bioavailability of calcium and are natural sources of vitamin D. Several studies have been carried out to demonstrate the benefit of supplementation with calcium and vitamin D enriched milks in vulnerable groups such as older adults and postmenopausal women. Those studies have reported a substantial improvement of bone turnover and an increase of bone density and strength. The aim of the present work is to revise the importance of milk-derived calcium intake on health, and the usefulness of calcium-enriched milks for allowing adequate calcium consumption without dietary modifications in certain groups of population. Likewise, it is intended to clarify the errors and myths that have recently arisen in relation to certain foods that seek to replace milk and dairy product, based on their differences in composition, bioavailability and health effects.


INTRODUCCIÓN: La leche y sus derivados son alimentos fundamentales durante todas las etapas de la vida dentro de una dieta occidental equilibrada. En las últimas décadas, su consumo ha disminuido notablemente y de forma paralela se ha detectado un aumento de algunas alteraciones provocadas por la carencia de micronutrientes presentes en los productos lácteos, principalmente calcio y vitamina D, lo que está derivando en un grave problema de salud pública en determinados grupos de población. Para intentar solucionar estos problemas, se han incorporado al mercado alimentos enriquecidos en estos componentes, dentro de los que destacan los productos lácteos porque proporcionan mejor biodisponibilidad del calcio y son fuentes de vitamina D, por lo que son los más recomendables. Se han realizado diversas investigaciones que demuestran el beneficio que supone la suplementación con leche enriquecida en calcio y vitamina D en grupos vulnerables como los adultos mayores y las mujeres posmenopáusicas, en los que mejora sustancialmente el recambio óseo y aumenta la densidad y la fuerza de los huesos. El objetivo de este trabajo es revisar la importancia que tiene el consumo del calcio de la leche, así como las recomendaciones actuales de ingesta, y analizar la utilidad de las leches enriquecidas en calcio para determinados grupos de población como alternativa para aumentar las ingestas de este mineral y también de vitamina D. Asimismo, se pretende clarificar los errores y mitos que han surgido recientemente en relación a determinados alimentos que pretenden sustituir a la leche y sus derivados, basándonos en sus diferencias de composición, biodisponibilidad y efectos sobre la salud.


Assuntos
Cálcio da Dieta/administração & dosagem , Laticínios , Alimentos Fortificados , Leite/química , Vitamina D/administração & dosagem , Vitaminas/administração & dosagem , Fatores Etários , Animais , Desenvolvimento Ósseo , Cálcio da Dieta/farmacocinética , Laticínios/efeitos adversos , Feminino , Crescimento , Humanos , Masculino , Leite/efeitos adversos , Substitutos do Leite/administração & dosagem , Necessidades Nutricionais , Fatores Sexuais , Espanha , Vitamina D/farmacocinética , Vitaminas/farmacocinética
12.
Nutrients ; 10(3)2018 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-29495578

RESUMO

Inflammation and oxidative stress play major roles in endothelial dysfunction, and are key factors in the progression of cardiovascular diseases. The aim of this study was to evaluate in vitro the effect of three subfractions (SFs) from the Cucumis sativus aqueous fraction to reduce inflammatory factors and oxidative stress induced by angiotensin II (Ang II) in human microvascular endothelial cells-1 (HMEC-1) cells. The cells were cultured with different concentrations of Ang II and 0.08 or 10 µg/mL of SF1, SF2, or SF3, or 10 µmol of losartan as a control. IL-6 (Interleukin 6) concentration was quantified. To identify the most effective SF combinations, HMEC-1 cells were cultured as described above in the presence of four combinations of SF1 and SF3. Then, the effects of the most effective combination on the expression of adhesion molecules, the production of reactive oxygen species (ROS), and the bioavailability of nitric oxide (NO) were evaluated. Finally, a mass spectrometry analysis was performed. Both SF1 and SF3 subfractions decreased the induction of IL-6 by Ang II, and C4 (SF1 and SF3, 10 µg/mL each) was the most effective combination to inhibit the production of IL-6. Additionally, C4 prevented the expression of adhesion molecules, reduced the production of ROS, and increased the bioavailability of NO. Glycine, arginine, asparagine, lysine, and aspartic acid were the main components of both subfractions. These results demonstrate that C4 has anti-inflammatory and antioxidant effects.


Assuntos
Aminoácidos/farmacologia , Angiotensina II/toxicidade , Anti-Inflamatórios/farmacologia , Antioxidantes/farmacologia , Cucumis sativus , Células Endoteliais/efeitos dos fármacos , Inflamação/prevenção & controle , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/farmacologia , Aminoácidos/isolamento & purificação , Anti-Inflamatórios/isolamento & purificação , Antioxidantes/isolamento & purificação , Moléculas de Adesão Celular/metabolismo , Linhagem Celular , Cucumis sativus/química , Relação Dose-Resposta a Droga , Células Endoteliais/metabolismo , Humanos , Inflamação/induzido quimicamente , Inflamação/metabolismo , Mediadores da Inflamação/metabolismo , Interleucina-6/metabolismo , Óxido Nítrico/metabolismo , Fitoterapia , Extratos Vegetais/isolamento & purificação , Plantas Medicinais , Espécies Reativas de Oxigênio/metabolismo
13.
Environ Pollut ; 235: 750-760, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29339344

RESUMO

During the last years, declines in honey bee colonies are being registered worldwide. Cholinergic pesticides and their extensive use have been correlated to the decline of pollinators and there is evidence that pesticides act as neuroendocrine disruptors affecting the metabolism of neuropeptides. However, there is a big absence of studies with quantitative results correlating the effect of pesticide exposure with changes on neuropeptides insects, and most of them are conducted under laboratory conditions, typically with individual active ingredients. In this study, we present an analytical workflow to evaluate pesticide effects on honey bees through the analysis of (neuro)peptides. The workflow consists of a rapid extraction method and liquid chromatography with triple quadrupole for preselected neuropeptides. For non-target analysis, high resolution mass spectrometry, multivariate analysis and automatic identification of discriminated peptides using a specific software and protein sequence databases. The analytical method was applied to the analysis of target and non-target (neuro)peptides in honey bees with low and high content of a wide range of pesticides to which have been exposed in field conditions. Our findings show that the identification frequency of target neuropeptides decreases significantly in honey bees with high concentration of pesticides (pesticide concentrations ≥ 500 µg kg-1) in comparison with the honey bees with low content of pesticides (pesticide concentrations ≤ 20 µg kg-1). Moreover, the principal component analysis in non-target search shows a clear distinction between peptide concentration in honey bees with high level of pesticides and honey bees with low level. The use of high resolution mass spectrometry has allowed the identification of 25 non-redundant peptides responsible for discrimination between the two groups, derived from 18 precursor proteins.


Assuntos
Abelhas/efeitos dos fármacos , Monitoramento Ambiental/métodos , Neuropeptídeos/metabolismo , Praguicidas/toxicidade , Animais , Abelhas/metabolismo , Cromatografia Líquida/métodos , Mel/análise , Praguicidas/análise , Polinização
14.
Anal Chim Acta ; 990: 84-95, 2017 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-29029746

RESUMO

Olive oil is rich in several minor components like maslinic (MA) and oleanolic (OA) acids which have cardioprotective, antitumor, and anti-inflammatory properties. In order to assess the health benefits in humans provided by the olive oil triterpenes (MA and OA), suitable analytical methods able to quantify the low concentrations expected in human fluids are required. In this study, the LC-MS/MS quantification of both OA and MA in plasma and urine has been evaluated. The plasmatic method is based on the direct determination of the analytes. The urinary detection requires more sensitivity which was reached by derivatization with 2-picolylamine. Additionally, the urinary species present after MA and OA ingestion were evaluated by the direct detection of several phase II metabolites previously synthesized. Our results showed that OA is metabolized as both sulfate and glucuronide conjugates whereas MA is mainly excreted as glucuronide. Based on this information, the method for the urinary detection of MA and OA involved an enzymatic hydrolysis. Both plasmatic and urinary methods were validated with suitable precision and accuracy at all tested levels. Required sensitivity was achieved in both matrices. Up to our knowledge, this is the first method able to quantify the low concentration levels of triterpenes present in urine. Samples from two healthy volunteers who received virgin olive oils with different triterpenes content were analyzed. Some preliminary clues on the metabolic disposition of OA and MA after olive oil intake are provided.


Assuntos
Cromatografia Líquida , Ácido Oleanólico/metabolismo , Azeite de Oliva , Espectrometria de Massas em Tandem , Triterpenos/metabolismo , Dieta , Humanos
15.
Rare Tumors ; 8(3): 6429, 2016 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-27746885

RESUMO

Malignant salivary gland tumors are rare in children, mostly represented by low-grade mucoepidermoid carcinomas. For these patients, long-term survival rates above 95% are reported after surgical resection. Here we report a case of a 9-year-old girl with a high grade locally advanced mucoepidermoid carcinoma undergoing adjuvant radiotherapy and chemotherapy after surgery. We emphasize the controversy and lack of evidence-based indication for these highly toxic adjuvant therapy modalities in children.

16.
Cir Cir ; 83(2): 146-50, 2015.
Artigo em Espanhol | MEDLINE | ID: mdl-26001766

RESUMO

BACKGROUND: Intramural duodenal haematoma is a rare entity that usually occurs in the context of patients with coagulation disorders. A minimum percentage is related to processes such as pancreatitis and pancreatic tumours. CLINICAL CASE: The case is presented of a 45 year-old male with a history of chronic pancreatitis secondary to alcoholism. He was seen in the emergency room due to abdominal pain, accompanied by toxic syndrome. The abdominal computed tomography reported increased concentric duodenal wall thickness, in the second and third portion. After oesophageal-gastro-duodenoscopy, he presented with haemorrhagic shock. He had emergency surgery, finding a hemoperitoneum, duodenopancreatic tumour with intense inflammatory component, as well a small bowel perforation of third duodenal portion. A cephalic duodenopancreatectomy was performed with pyloric preservation and reconstruction with Roux-Y. DISCUSSION: Treatment of a duodenal haematoma is nasogastric decompression, blood transfusion and correction of coagulation abnormalities. Surgery is indicated in the cases in which there is no improvement after 2 weeks of treatment, or there is suspicion of malignancy or major complications arise. CONCLUSIONS: Duodenal intramural haematoma secondary to chronic pancreatitis is rare, although the diagnosis should be made with imaging and, if suspected, start conservative treatment and surgery only in complicated cases.


Assuntos
Abdome Agudo/etiologia , Duodenopatias/complicações , Hematoma/complicações , Humanos , Masculino , Pessoa de Meia-Idade
17.
Medisan ; 17(8): 3010-3017, ago. 2013.
Artigo em Espanhol | LILACS | ID: lil-684400

RESUMO

Se realizó una investigación de evaluación de sistemas y servicios de salud en el Policlínico Docente "José Martí Pérez" de Santiago de Cuba, durante el 2009, a fin de evaluar la calidad de la atención médica (38 médicos y 38 enfermeras de la familia) a las 58 personas que viven con virus de inmunodeficiencia humana/sida en esta área, según las dimensiones científico-técnica, de satisfacción de los usuarios, conocimientos de los proveedores de salud y efectividad. Mediante la creación de un grupo de expertos, que establecieron criterios explícitos, descriptivos y normativos, construyeron indicadores y prefijaron estándares para valorar aspectos seleccionados de la estructura, el proceso y los resultados; se constató que existían deficiencias en la estructura de los consultorios médicos, con limitación de los recursos materiales e insuficientes conocimientos de los prestatarios del sector en aspectos fundamentales de la epidemiología de la infección y del seguimiento a estos afectados, los cuales constituyeron los indicadores de peores resultados y además influyeron en que la evaluación de los indicadores de impacto seleccionados fuera inadecuada. Finalmente, se recomendó llevar a cabo actividades de capacitación sistemáticamente para los proveedores de salud.


An investigation of health systems and services evaluation was carried out in "José Martí Pérez" Teaching Polyclinic in Santiago de Cuba, during the 2009, in order to evaluate the quality of medical care (38 family's physicians and 38 nurses) to the 58 people living with the human immune deficiency virus/aids in this area, according to the scientific-technological dimensions, to the users' satisfaction, to the knowledge of the health providers and effectiveness. By means of a group of experts who established explicit descriptive and normative criteria, they built indicators and they preset standards to evaluate selected aspects of the structure, the process and the results; it was verified that deficiencies existed in the structure of the doctor's offices, with limitation of material resources and scarce knowledge of the sector providers in fundamental aspects of the epidemiology of the infection and of the follow-up to these affected patients, which constituted the indicators of worst results and they also influenced on the inadequate of the evaluation of the selected impact indicators. Finally, it was recommended to carry out systematically training activities for the health providers.

18.
Reumatol Clin ; 8 Suppl 1: S26-31, 2012 Mar.
Artigo em Espanhol | MEDLINE | ID: mdl-22418285

RESUMO

TNFalpha inhibitors have been a major advance in the treatment of spondyloarthropathies, having demonstrated their safety and efficacy, with higher response and survival rates than those observed in patients with rheumatoid arthritis. The fact that disease modifying anti-arthritic drugs (DMARD) have shown utility in the treatment of this disease, especially in the axial forms, gives them greater importance, since it is known that up to 30%of patients do not respond to treatment with non-steroidal anti-inflammatory drugs. However, we must take into account that these drugs are expensive and not without side effects, so it is necessary to optimize their use. We intend to review the use of antiTNF alpha in spondyloarthropathies and review the available evidence on strategies that can help with their rational use.


Assuntos
Antirreumáticos/uso terapêutico , Espondilartrite/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Corticosteroides/administração & dosagem , Corticosteroides/uso terapêutico , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/uso terapêutico , Anti-Inflamatórios não Esteroides/uso terapêutico , Antirreumáticos/efeitos adversos , Ensaios Clínicos como Assunto , Resistência a Medicamentos , Quimioterapia Combinada , Humanos , Terapia de Imunossupressão/efeitos adversos , Doenças Inflamatórias Intestinais/complicações , Doenças Inflamatórias Intestinais/tratamento farmacológico , Estudos Multicêntricos como Assunto , Seleção de Pacientes , Guias de Prática Clínica como Assunto , Psoríase/complicações , Psoríase/tratamento farmacológico , Espondilartrite/complicações , Sulfassalazina/administração & dosagem , Sulfassalazina/uso terapêutico , Fatores de Tempo , Uveíte/complicações , Uveíte/tratamento farmacológico
19.
Medisan ; 16(1): 1-13, ene. 2012.
Artigo em Espanhol | LILACS | ID: lil-627963

RESUMO

Se realizó un estudio descriptivo y transversal de 3 559 personas (15-35 años de edad), con vistas a caracterizar los conocimientos, las actitudes y prácticas sexuales y su relación con las manifestaciones de las enfermedades de transmisión sexual y el sida en la provincia de Santiago de Cuba. De los integrantes de la casuística, 46,4 % de quienes iniciaron sus relaciones sexuales a los 10-14 años y 82,0 % de quienes las tuvieron con personas del mismo sexo, eran varones. Respecto al condón, 18,6 % de las mujeres y 17,6 % de los hombres refirieron haberlo usado en sus primeras relaciones sexuales; pero nunca lo utilizaron 31,8 y 30,2 % de los que practicaron coito anal y vaginal, respectivamente. Entre las prácticas sexuales predominaron la penetración vaginal (94,6 %) y el sexo oral (62,0 %). La tasa de no respuesta y no participación fue de 18 %, con un intervalo de confianza de 95 %.


A descriptive and cross-sectional study of 3 559 people (15-35 years old) was carried out, with the objective of characterizing the knowledge, attitudes and sexual practices and their relation to the manifestations of sexually transmitted diseases and AIDS in Santiago de Cuba province. From the members of the case material, 46,4 % of those who began their sexual relations at 10-14 years and 82,0 % of those who began them with persons of the same sex, were males. Regarding condom, 18,6 % of the women and 17,6 % of the men, referred to have used it in their first sexual relations; but 31,8 and 30,2 % of those who practiced anal and vaginal coitus never used it. Among the sexual practices, vaginal penetration (94,6 %) and oral sex (62,0 %) prevailed. The rate for no answer and no participation was 18 %, with a confidence interval of 95 %.

20.
Expert Rev Hematol ; 4(1): 9-16, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21322774

RESUMO

The aim of this study was to assess the incidence of cytomegalovirus (CMV) infection and disease in patients with hematologic malignancies treated with alemtuzumab. The outcome of CMV infection in hematologic patients treated with alemtuzumab in 19 hospitals throughout Spain was assessed retrospectively. Data were collected from the medical records of patients over a period of 6 months following initiation of alemtuzumab therapy. We studied 102 patients (89 with B-cell chronic lymphocytic leukemia and 13 with other lymphoproliferative diseases, with a median age of 63 years [range 29-81 years]). Alemtuzumab was administered for a mean of 11.2 (standard deviation: 13.8) weeks, with a median total dose of 423 mg (range: 59-1440 mg). Alemtuzumab as a single agent was administered in 92.2% of patients and was associated with chemotherapy in 7.8% of cases. Prophylactic antivirals included famcyclovir (47%), acyclovir (34%), valacyclovir (14%) and valgancyclovir (5%). CMV viremia testing was performed a mean of 6.3 times (range: 1-19). The incidence of CMV infection was 38.9% (46% in patients treated with steroids and 75% in patients receiving ≥1000 mg of alemtuzumab). Treatment of CMV infection included gancyclovir or valgancyclovir in 94% of cases. Viremia became negative after a median of 20 days (95% CI: 13.4-26.6). CMV disease occurred in five patients. The incidence of CMV infection in alemtuzumab-treated patients was 38.9%. The incidence increased in patients treated concomitantly with steroids and in those treated with high doses of alemtuzumab, although only eight patients received 1000 mg or more, systematic monitoring of CMV viremia and early treatment of infection resulted in a favorable outcome of CMV reactivation.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Anticorpos Antineoplásicos/uso terapêutico , Antineoplásicos/uso terapêutico , Infecções por Citomegalovirus/epidemiologia , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Transtornos Linfoproliferativos/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Alemtuzumab , Anticorpos Monoclonais Humanizados , Antivirais/uso terapêutico , Infecções por Citomegalovirus/complicações , Infecções por Citomegalovirus/tratamento farmacológico , DNA Viral/sangue , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/complicações , Transtornos Linfoproliferativos/complicações , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Esteroides/uso terapêutico
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