Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 68
Filtrar
1.
JMIR Form Res ; 8: e55064, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38717803

RESUMO

BACKGROUND: Health organizations face the critical task of executing and overseeing comprehensive health care. To address the challenges associated with this task, evidence-based dashboards have emerged as valuable tools. Since 2016, the regional health organizations of Quebec, Canada, have been responsible for ensuring implementation of the Quebec Alzheimer Plan (QAP), a provincial plan that aims to reinforce the capacity of primary care services to detect, diagnose, and treat persons with dementia. Despite the provincial scope of the QAP, the diverse material and human resources across regions introduce variability in the interest, utility, and specific needs associated with these dashboards. OBJECTIVE: The aim of this study was to assess the interest and utility of dashboards to support the QAP implementation, as well as to determine the needs for improving these aspects according to the perspectives of various types of professionals involved across regions. METHODS: An evaluative study using qualitative methods was conducted within a collaborative research approach involving different stakeholders, including the ministerial advisor and the four project managers responsible for supporting the implementation of the QAP, as well as researchers/scientific advisors. To support these organizations, we developed tailored, 2-page paper dashboards, detailing quantitative data on the prevalence of dementia, the use of health services by persons with dementia, and achievements and challenges of the QAP implementation in each organization's jurisdiction. We then conducted 23 focus groups with the managers and leading clinicians involved in the implementation of the QAP of each regional health organization. Real-time notes were taken using a structured observation grid. Content analysis was conducted according to different regions (organizations with university mandates or nearby organizations, labeled "university/peripheral"; organizations for which only part of the territory is in rural areas, labeled "mixed"; and organizations in remote or isolated areas, labeled "remote/isolated") and according to different types of participants (managers, leading clinicians, and other participants). RESULTS: Participants from organizations in all regions expressed interest in these dashboards and found them useful in several ways. However, they highlighted the need for indicators on orphan patients and other health care providers. Differences between regions were observed, particularly in the interest in continuity of care in university/peripheral regions and the need for diagnostic tools adapted to the culture in remote/isolated regions. CONCLUSIONS: These dashboards support the implementation of an Alzheimer Plan and contribute to the emergence of a learning health care system culture. This project allows each region to increase its monitoring capacity for the implementation of the QAP and facilitates reflection among individuals locally carrying out the implementation. The perspectives expressed will guide the preparation of the next iteration of the dashboards.

2.
Breastfeed Med ; 18(6): 489-493, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37184533

RESUMO

Background: Mexiletine is a class 1B antiarrhythmic agent, used to treat ventricular arrhythmias, and noncardiac-related problems such as myotonia. Limited safety data are available on the transfer of this drug into breast milk. Case Report: We report the case of a woman diagnosed with myotonia congenita who breastfed two children after two consecutive pregnancies. During the breastfeeding of the first and the second infant, she collected, respectively, five and seven samples at 0, 2, 4, 6, and 8 hours and 0, 1, 2, 3, 4, 6, and 8 hours after taking 200 mg of mexiletine thrice daily for seven doses. One week after the collection, samples were analyzed with a validated liquid chromatography tandem mass spectrometry method. No side effect was observed in either child according to the mother. Results: Using the mean milk concentrations, it is estimated that an exclusively breastfed infant would receive a maximum of 5.14% of the initial pediatric mexiletine dosage. We calculated a maximum of 2.67% for the first infant in our case, considering a nonexclusive breastfeeding. Maximal concentrations were observed 1-2 hours after the dose of mexiletine. Results seem to be in accordance with the two cases previously published. Conclusions: Mexiletine transfers into breast milk in low levels. However, results are obtained from only one woman. Therefore, caution should be used when mexiletine is prescribed to breastfeeding women. More cases are needed to evaluate the interindividual variability and to guide women regarding breastfeeding with mexiletine.


Assuntos
Aleitamento Materno , Leite Humano , Lactente , Gravidez , Feminino , Criança , Humanos , Leite Humano/química , Aleitamento Materno/efeitos adversos , Mexiletina/análise , Mexiletina/uso terapêutico , Mães
3.
J Pediatr Pharmacol Ther ; 28(1): 20-28, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36777982

RESUMO

Acetaminophen is one of the oldest medications commonly administered in children. Its efficacy in treating fever and pain is well accepted among clinicians. However, the available evidence supporting the use of acetaminophen's different modes of administration remains relatively scarce and poorly known. This short report summarizes the available evidence and provides a framework to guide clinicians regarding a rational use of acetaminophen in children.

4.
Database (Oxford) ; 20222022 06 23.
Artigo em Inglês | MEDLINE | ID: mdl-35735230

RESUMO

Experimental tools and resources, such as animal models, cell lines, antibodies, genetic reagents and biobanks, are key ingredients in biomedical research. Investigators face multiple challenges when trying to understand the availability, applicability and accessibility of these tools. A major challenge is keeping up with current information about the numerous tools available for a particular research problem. A variety of disease-agnostic projects such as the Mouse Genome Informatics database and the Resource Identification Initiative curate a number of types of research tools. Here, we describe our efforts to build upon these resources to develop a disease-specific research tool resource for the neurofibromatosis (NF) research community. This resource, the NF Research Tools Database, is an open-access database that enables the exploration and discovery of information about NF type 1-relevant animal models, cell lines, antibodies, genetic reagents and biobanks. Users can search and explore tools, obtain detailed information about each tool as well as read and contribute their observations about the performance, reliability and characteristics of tools in the database. NF researchers will be able to use the NF Research Tools Database to promote, discover, share, reuse and characterize research tools, with the goal of advancing NF research. Database URL: https://tools.nf.synapse.org/.


Assuntos
Pesquisa Biomédica , Neurofibromatoses , Animais , Bases de Dados Factuais , Camundongos , Reprodutibilidade dos Testes
5.
Eur J Histochem ; 65(1)2021 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-33728864

RESUMO

Therapeutic strategies for epithelial ovarian cancers are evolving with the advent of immunotherapy, such as PD-L1 inhibitors, with encouraging results. However, little data are available on PDL-1 expression in ovarian cancers. Thus, we set out to determine the PD-L1 expression according to histological subtype. We evaluated the expression of two PD-L1 clones - QR1 and E1L3N - with two scores, one based on the percentage of labeled tumor cells (tumor proportion score, TPS) and the other on labeled immune cells (combined proportion score, CPS) in a consecutive retrospective series of 232 ovarian cancers. PD-L1 expression was more frequent in high grade serous carcinoma (27.5% with E1L3N clone and 41.5% with QR1 clone), grade 3 endometrioid carcinoma (25% with E1L3N clone and 50% with QR1 clone), and clear-cell carcinomas (27.3% with E1L3N clone and 29.6% with QR1 clone) than other histological subtypes with CPS score. Using the CPS score, 17% of cases were labeled with E1L3N vs 28% with QR1. Using the TPS score, 14% of cases were positive to E1L3N vs 17% for QR1. For TPS and CPS, respectively, 77% and 78% of the QR1 cases were concordant with E1L3N for the thresholds of 1%. Overall and progression-free survival between PD-L1 positive and PD-L1 negative patients were not different across all histological types, and each subtype in particular for serous carcinomas expressing PD-L1. Expression of PD-L1 is relatively uncommon in epithelium ovarian tumors. When positive, usually <10% of tumor cells are labeled. QR1 clone and CPS appear the best tools to evaluate PD-L1 expression.


Assuntos
Anticorpos Monoclonais/imunologia , Antígeno B7-H1/metabolismo , Neoplasias Ovarianas/metabolismo , Animais , Antígeno B7-H1/imunologia , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Neoplasias Ovarianas/classificação , Neoplasias Ovarianas/patologia , Coelhos
6.
J Gynecol Obstet Hum Reprod ; 50(1): 101966, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33144266

RESUMO

In the Early Stages (ES) of Borderline Ovarian Tumor (BOT), if surgery without risk of tumor rupture is possible, then laparoscopy with protected extraction is recommended over laparotomy (Grade C). In case of bilateral serous ES BOT treatment with a strategy to preserve fertility and/or endocrine function, bilateral cystectomy is recommended if possible (Grade B). In case of mucinous BOT treatment with a strategy to preserve fertility and/or endocrine function, unilateral adnexectomy is recommended (grade C). In the case of a mucinous BOT in a patient who has had an initial cystectomy, unilateral adnexectomy is recommended (grade C). In the case of treatment of a serous ES BOT in a patient who has had an initial cystectomy, with a strategy to preserve fertility and/or endocrine function, restaging surgery for adnexectomy is not recommended in the absence of suspicious residual lesions at the time of surgery and/or postoperative imaging (reference ultrasonography or pelvic MRI) (grade C). For serous or mucinous ES BOTs, routine hysterectomy is not recommended (Grade C). In cases of ES BOTs, lymphadenectomy is not recommended (Grade C). For ES BOTs, appendectomy is recommended only if there is a macroscopically pathological aspect to the appendix (Grade C). Restaging surgery is recommended in case of a serous BOT with a micropapillary aspect and an unsatisfactory inspection of the abdominal cavity during initial surgery (Grade C). Restaging surgery is recommended in cases of mucinous BOT if only a cystectomy has been performed or if the appendix has not been evaluated (Grade C). If restaging surgery is decided for an ES BOT, the following procedures should be performed: peritoneal cytology (grade C), omentectomy (there is no data in literature to recommend which type of omentectomy should be performed) (grade B), complete exploration of the abdominal cavity with peritoneal biopsies (grade C), visualization of the appendix +/- appendectomy in case of pathological macroscopic appearance (grade C) and unilateral adnexectomy in case of a mucinous BOT (grade C). In advanced stages of BOT it is not recommended to perform a lymphadenectomy as a routine procedure (Grade C). In cases of an advanced stage BOT, in a patient with a desire to fall pregnant, conservative treatment involving preservation of the uterus and all or part of the ovary may be proposed after a multidisciplinary meeting (Grade C). Second surgery aimed at removing all lesions, if not performed initially, is recommended in cases of advanced stage BOT (Grade C). It is not recommended to perform completion surgery after conservative treatment (preservation of the ovaries and the uterus) and after the achievement of fertility desire for a serous BOT (Grade B). After treatment for a BOT, follow-up beyond 5 years is recommended due to the median time to recurrence (Grade B). It is recommended that a systematic clinical examination be carried out during follow-up of a treated BOT (Grade B). In the particular case of an initial elevation of CA 125 levels, it is recommended to monitor CA 125 during follow up (Grade B). In cases treated conservatively (ovarian and uterine conservation), it is recommended to use endovaginal and transabdominal ultrasonography during the follow up period (Grade B). In the event of a recurrence of a BOT, in a woman of childbearing age, a conservative treatment strategy can again be proposed (Grade C). In the presence of non-invasive BOT implants, conservative treatment may be considered after a first non-invasive recurrence in women who wish to preserve their fertility (Grade C). Pelvic MRI is recommended after 12 weeks of amenorrhea in case of an undetermined adnexal mass and should be concluded with a diagnostic score (Grade C). The injection of gadolinium, in case of pregnancy, should be discussed on a case-by-case basis due to the proven risks for the foetus (Grade C). If feasible, a laparoscopic approach should be preferred during pregnancy (Grade C). A consultation with a specialist reproductive physician should be offered to patients with a BOT and of childbearing age (Grade C). It is recommended that patients be provided with full information on the risk of decreased ovarian reserve following to surgical treatment. It is recommended that the ovarian reserve be evaluated prior to surgical management of a suspected BOT (Grade C). When possible, a conservative surgical strategy is recommended to preserve fertility in women of childbearing age (Grade C). There is no specific data on the management of infertility following to conservative treatment of BOT. In case of durable infertility following to conservative treatment of BOT, a consultation with a specialist reproductive physician is required (Grade C). In the case of optimally treated BOT, there is no evidence in literature to contraindicate the use of Assisted Reproductive Techniques (ART). The use of hormonal contraception after serous or mucinous BOT is not contraindicated (Grade C). After treatment of a mucinous BOT, for women aged under 45 years, given the benefit of hormonal replacement therapy (HRT) on cardiovascular and bone risks, and the lack of hormone-sensitivity of mucinous BOTs, it is recommended to offer HRT (Grade C). After treatment of a mucinous BOT, for women over 45 years of age, there is no argument to contraindicate the use of HRT. HRT can be prescribed in case of a climacteric syndrome, as part of an individual benefit to risk assessment (Grade C).


Assuntos
Carcinoma Epitelial do Ovário/cirurgia , Neoplasias Ovarianas/cirurgia , Apendicectomia , Biomarcadores Tumorais/análise , Carcinoma Epitelial do Ovário/patologia , Feminino , Preservação da Fertilidade , Terapia de Reposição Hormonal , Humanos , Histerectomia , Infertilidade Feminina/etiologia , Infertilidade Feminina/terapia , Excisão de Linfonodo , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/terapia , Omento/cirurgia , Neoplasias Ovarianas/patologia , Lavagem Peritoneal , Neoplasias Peritoneais/prevenção & controle , Neoplasias Peritoneais/secundário , Gravidez , Complicações Neoplásicas na Gravidez/diagnóstico , Prognóstico
7.
J Gynecol Obstet Hum Reprod ; 50(1): 101965, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33160106

RESUMO

The incidence (rate per 100 000) of borderline ovarian tumors (BOTs) increases progressively with age, starting at 15-19 years and peaking at around 4.5 cases per 100 000 at an age of 55-59 years (LE3) with a median age of 46 years. The five year survival for FIGO stages I, II, III and IV is 99.7 % (95 % CI: 96.2-100 %), 99.6 % (95 % CI: 92.6-100 %), 95.3 % (95 % CI: 91.8-97.4 %) and 77.1 % (95 % CI: 58.0-88.3 %), respectively (LE3). An epidemiological association exists between the individual risk of BOT and family history of BOT and certain other cancers (pancreatic, lung, bone, leukemia) (LE3), a personal history of benign ovarian cyst (LE2), a personal history of tubo-ovarian infection (LE3), the use of a levonorgestrel intrauterine device (LE3), oral contraceptive use (LE3), multiparity (LE3), Hormonal replacement therapy (LE3), high consumption of Coumestrol (LE4), medical treatment for infertility with progesterone (LE3) and non-steroidal anti-inflammatory drug use (LE3). Screening for BOTs is not recommended for patients (Grade C). The overall risk of recurrence of BOTs varies between 2% and 24 %, with an overall survival greater than 94 % at 10 years, and the risk of an invasive recurrence of a BOT ranges from 0.5 % to 3.8 %. The use of scores and nomograms can be useful in assessing the risk of recurrence, and providing patients with information (Grade C). The WHO classification is recommended for classifying BOTs. It is recommended that the presence of a microinvasive focus (<5 mm) and microinvasive carcinoma (<5 mm with an atypical nuclei and a desmoplastic stroma reaction) within a BOT be reported. In cases of serous BOT, it is recommended to specify the classic histological subtype or micropapillary / cribriform type (Grade C). When confronted with a BOT, it is recommended that the invasive or non-invasive nature of peritoneal implants can be investigated based solely on the invasion and destruction of underlying adipose or peritoneal tissue which has a desmoplastic stromal reaction where in contact with the invasive clusters (Grade B). For bilateral mucinous BOTs and / or in cases with peritoneal implants or peritoneal pseudomyxoma, it is recommended to also look for a primitive digestive or pancreato-biliary cancer (Grade C). It is recommended to sample ovarian tumors suspected of being BOTs by focusing samples on vegetations and solid components, with at least 1 sample per cm in tumors with a size less than 10 cm and 2 samples per cm in tumors with a size greater than 10 cm (Grade C). In cases of BOTs and in the absence of macroscopic omental involvement after careful macroscopic examination, it is recommended to perform at least 4-6 systematic sampling blocks and to include all peritoneal implants (Grade C). It is recommended to consult an expert pathologist in gynecology when a BOT suspicion requires intraoperative extemporaneous histology (grade C). Endo-vaginal and suprapubic ultrasonography are recommended for the analysis of an ovarian mass (Grade A). In case of an undetermined ovarian lesion on ultrasonography, it is recommended that a pelvic MRI be performed (Grade A). To analyze an adnexal mass with MRI, it is recommended to use an MRI protocol with T2, T1, T1 Fat Sat, dynamic and diffusion sequences as well as gadolinium injection (Grade B). To characterize an adnexal mass with MRI, it is recommended to include a score system for malignancy (ADNEX MR/O-RADS) (Grade C) in the report and to formulate a histological hypothesis (Grade C). Pelvic MRI is recommended to characterize a tumor suspected of being a BOT (Grade C). Macroscopic MRI features should be analyzed to differentiate BOT subtypes (Grade C). Pelvic ultrasound is the first-line examination for the detection and characterization of adnexal masses during pregnancy (Grade C). Pelvic MRI is recommended from 12 weeks of gestation in case of an indeterminate adnexal mass and should provide a diagnostic score (Grade C). Gadolinium injection must be minimized as fetal impairment has been proven (Grade C). It is recommended that serum levels of HE4 and CA125 be evaluated and that the ROMA score for the diagnosis of an indeterminate ovarian mass on imaging be used (grade A). In case of suspicion of a mucinous BOT on imaging, dosage of serum levels of CA 19-9 can be considered (Grade C). If the determination of tumor markers is normal preoperatively, routine dosage of tumor markers in BOT follow-up is not recommended (Grade C). In case of preoperative elevation in tumor markers, the determination of serum CA 125 levels is recommended in the follow-up of BOT (Grade B). When conservative treatment of a BOT has been adopted, the use of endovaginal and transabdominal ultrasonography is recommended during follow-up (Grade B).


Assuntos
Carcinoma Epitelial do Ovário , Neoplasias Ovarianas , Biomarcadores Tumorais , Carcinoma Epitelial do Ovário/diagnóstico , Carcinoma Epitelial do Ovário/epidemiologia , Carcinoma Epitelial do Ovário/patologia , Diagnóstico Diferencial , Diagnóstico por Imagem , Feminino , Humanos , Laparoscopia , Recidiva Local de Neoplasia , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/patologia , Gravidez , Complicações Neoplásicas na Gravidez/diagnóstico , Fatores de Risco , Fixação de Tecidos , Preservação de Tecido
8.
Front Pharmacol ; 11: 1266, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32973507

RESUMO

Chronic inflammation is a deleterious process occurring in several pulmonary diseases; it is a driving force promoting tumorigenesis. By regulating local cyclic nucleotide concentration, cyclic nucleotide phosphodiesterases (PDE) govern important biological processes, including inflammation and proliferation. The aim of this study was to investigate the anti-inflammatory and anti-proliferative effects of NCS 613, a specific PDE4 inhibitor, on TNFα-treated human lung adenocarcinoma cell line (A549) and on human lung adenocarcinoma explants. PDE4 isoforms and inflammatory pathways mediated by p38 MAPK, ERK1/2, and IκBα were analyzed by Western blot and immunostainings. Proliferation were performed using [3H]-thymidine incorporation under different experimental conditions. TNFα-stimulation increased p38 MAPK phosphorylation and NF-κB translocation into the nucleus, which was abolished by NCS 613 treatment. Concomitantly, NCS 613 restores IκBα detection level in human adenocarcinoma. An IC50 value of 8.5 µM was determined for NCS 613 on anti-proliferative properties while ERK1/2 signaling was down-regulated in A549 cells and lung adenocarcinoma explants. These findings shed light on PDE4 signaling as a key regulator of chronic inflammation and cancer epithelial cell proliferation. It suggests that PDE4 inhibition by NCS 613 represent potential and interesting strategy for therapeutic intervention in tackling chronic inflammation and cell proliferation.

10.
Ann Pathol ; 39(2): 144-150, 2019 Apr.
Artigo em Francês | MEDLINE | ID: mdl-30711337

RESUMO

Medical education is currently facing great changes that affect all medical specialties, including anatomical pathology. Due to rapidly increasing medical knowledge and diagnostic complexity, we are living an era of teaching resources mutualization. We present different tools that allow large numbers of students to access courses, self-evaluations, and competencies assessments. MOOC platforms and e-learning platforms are central to these new online tools, which include the French National Platform of Medical Specialties, dedicated to the teaching of 50,000 medical residents in France. We also discuss "serious games" and the use of images and virtual slides in anatomical pathology teaching. These new modalities can deliver essential knowledge to large student populations, but they must be used in conjunction with adapted teacher-led courses focusing on competencies and professional skills in order to be fully effective.


Assuntos
Patologia Clínica/educação , Educação a Distância , Educação de Pós-Graduação em Medicina/organização & administração , Educação de Pós-Graduação em Medicina/estatística & dados numéricos , França
11.
Mar Drugs ; 16(6)2018 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-29861448

RESUMO

Omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementations are thought to improve essential fatty acid deficiency (EFAD) as well as reduce inflammation in Cystic Fibrosis (CF), but their effectiveness in clinical studies remains unknown. The aim of the study was to determine how the medical food containing docosahexaenoic acid monoglyceride (MAG-DHA) influenced erythrocyte fatty acid profiles and the expression levels of inflammatory circulating mediators. We conducted a randomized, double blind, pilot trial including fifteen outpatients with Cystic Fibrosis, ages 18⁻48. The patients were divided into 2 groups and received MAG-DHA or a placebo (sunflower oil) for 60 days. Patients took 8 × 625 mg MAG-DHA softgels or 8 × 625 mg placebo softgels every day at bedtime for 60 days. Lipid analyses revealed that MAG-DHA increased docosahexaenoic acid (DHA) levels and decrease arachidonic acid (AA) ratio (AA/DHA) in erythrocytes of CF patients following 1 month of daily supplementation. Data also revealed a reduction in plasma human leukocyte elastase (pHLE) complexes and interleukin-6 (IL-6) expression levels in blood samples of MAG-DHA supplemented CF patients. This pilot study indicates that MAG-DHA supplementation corrects erythrocyte AA/DHA imbalance and may exert anti-inflammatory properties through the reduction of pHLE complexes and IL6 in blood samples of CF patients. TRIAL REGISTRATION: Pro-resolving Effect of MAG-DHA in Cystic Fibrosis (PREMDIC), NCT02518672.


Assuntos
Anti-Inflamatórios/uso terapêutico , Fibrose Cística/tratamento farmacológico , Eritrócitos/efeitos dos fármacos , Alimentos Formulados , Monoglicerídeos/uso terapêutico , Adulto , Anti-Inflamatórios/farmacologia , Ácido Araquidônico/sangue , Ácido Araquidônico/metabolismo , Fibrose Cística/sangue , Fibrose Cística/metabolismo , Ácidos Docosa-Hexaenoicos/sangue , Ácidos Docosa-Hexaenoicos/metabolismo , Método Duplo-Cego , Eritrócitos/metabolismo , Ácidos Graxos/metabolismo , Humanos , Interleucina-6/sangue , Elastase de Leucócito/sangue , Pessoa de Meia-Idade , Monoglicerídeos/farmacologia , Projetos Piloto , Adulto Jovem
12.
Nat Rev Urol ; 15(3): 143-154, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29384523

RESUMO

Pathological assessment of bladder cancer is becoming an increasingly complex task owing to the growing availability of molecular data for different histological subtypes and the appreciation of their importance in determining outcomes of neoadjuvant chemotherapy. Urologists are aware of the need to closely collaborate with pathologists, and comprehensive sharing of information is crucial to achieve optimal patient management. Numerous steps towards this goal have been made during the past years. Important advances in the assessment and reporting of grading and staging, especially substaging of pT1 urothelial carcinomas, have been made. As part of the International Collaboration on Cancer Reporting (ICCR), an international expert group has suggested worldwide reporting standards for urothelial lesions. Nevertheless, several issues remain unresolved, for example, regarding the reporting of heterogeneous lesions and substaging as well as the gross handling and the reporting for lymphadenectomy specimens. During the past few years, major insights have been gained into the molecular changes that occur during bladder cancer development, but a consensus on how to integrate these data into daily practice has not been achieved.


Assuntos
Neoplasias da Bexiga Urinária/patologia , Adenocarcinoma/patologia , Carcinoma de Células de Transição/patologia , Humanos , Excisão de Linfonodo , Linfonodos/patologia , Gradação de Tumores , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Patologia Clínica/normas , Prognóstico
13.
Anticancer Res ; 37(11): 6015-6023, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29061780

RESUMO

BACKGROUND/AIM: Omega 3 polyunsaturated fatty acids (PUFAs) have been shown to inhibit the induction and progression of many tumor types. The aim of this study was to determine the anticancer effect of docosahexaenoic acid monoglyceride (MAG-DHA) alone and in combination with the chemotherapeutic agent carboplatin (CBT) on lung cancer models. MATERIALS AND METHODS: Adenocarcinoma cell lines A549 and H1299 were used to evaluate the effect of combined MAG-DHA and CBT treatments both in vitro and in vivo in xenograft models. RESULTS: MAG-DHA+CBT treatment decreased cell proliferation and invasion abilities of A549 and H1299 cells. Furthermore, MAG-DHA+CBT treatment resulted in a decreased activation of epithelial growth factor receptor (EGFR) and its downstream extracellular signal-regulated kinase (ERK) in cell lysates. In A549 and H1299 xenograft mouse models, MAG-DHA+CBT treatment reduced tumor growth. CONCLUSION: Combined MAG-DHA and CBT treatment inhibited tumor growth by suppressing EGFR and ERK signaling pathways in lung carcinoma cells.


Assuntos
Carboplatina/farmacologia , Sinergismo Farmacológico , Receptores ErbB/antagonistas & inibidores , Neoplasias Pulmonares/tratamento farmacológico , Terapia de Alvo Molecular , Monoglicerídeos/farmacologia , Animais , Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Humanos , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Camundongos , Camundongos Nus , Células Tumorais Cultivadas , Ensaios Antitumorais Modelo de Xenoenxerto
14.
Mar Drugs ; 15(9)2017 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-28869531

RESUMO

BACKGROUND: There is increasing evidence that marine omega-3 oils are involved in the reduction of cancer risk and progression. However, the anticancer effect of omega-3 monoglyceride on colorectal cancer has yet to be assessed. The goal of this study was to evaluate the anti-cancer effects of eicosapentaenoic acid monoglyceride (MAG-EPA) in HCT116 colorectal carcinoma cells. METHODS: The effect of MAG-EPA was evaluated in vitro on HCT116 cells and in vivo on mouse model of HCT116 xenograft. RESULTS: Our data reveal that MAG-EPA decreased cell proliferation and induced apoptosis in HCT116 cells. In a xenograft mouse model, daily per os administration of MAG-EPA reduced tumor growth. Furthermore, MAG-EPA treatments decreased EGFR, VEGFR, and AKT activation pathways and reduced VEGF and HIF1α expression levels in tumors. CONCLUSION: MAG-EPA may promote apoptosis and inhibit growth of tumors by suppressing EGFR and VEGFR activation pathways. Altogether, these data provide new evidence regarding the mode of action of MAG-EPA in colorectal cancer cells.


Assuntos
Antineoplásicos/farmacologia , Organismos Aquáticos , Proliferação de Células/efeitos dos fármacos , Ácido Eicosapentaenoico/farmacologia , Células HCT116/efeitos dos fármacos , Monoglicerídeos/farmacologia , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/patologia , Animais , Antineoplásicos/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/parasitologia , Ácido Eicosapentaenoico/uso terapêutico , Feminino , Humanos , Concentração Inibidora 50 , Camundongos , Camundongos Nus , Monoglicerídeos/uso terapêutico
15.
Eur J Pharmacol ; 807: 205-211, 2017 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-28501579

RESUMO

Phosphorylation and activation of p38 MAPK and NFκB pathways, along with the resulting overproduction of interleukin IL-1ß, IL-6, and tumor necrosis factor a (TNFα) is a hallmark of inflammatory disorders. Omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementations are known to exert anti-inflammatory properties by reduction of keys cytokines and enzymes involved in inflammation. Here, we investigated the anti-inflammatory pathways and mediators modulated by eicosapentaenoic acid monoglyceride (MAG-EPA) on human peripheral blood mononuclear cells (PBMCs) from healthy donors and stimulated, ex vivo, with lipopolysaccharide (LPS). LPS stimulation increased p38 MAPK and NFκB phosphorylation, which was abolished by MAG-EPA treatments. Concomitantly, MAG-EPA also abolished LPS-induced inflammation in PBMCs by reducing IL-1ß, IL-6, and TNFα cytokines at protein and transcript levels. Moreover, MAG-EPA decreased the levels of HIF1α in LPS-induced human PBMCs. Results also revealed a decreased of pro-inflammatory enzymes such as Cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX) in LPS-induced PBMCs. Altogether, the present data suggest that MAG-EPA, represents a new potential therapeutic strategy for resolving inflammation in inflammatory disorders including autoimmune diseases, allergies, asthma, arthritis and cancer.


Assuntos
Leucócitos Mononucleares/efeitos dos fármacos , Monoglicerídeos/farmacologia , Adulto , Araquidonato 15-Lipoxigenase/metabolismo , Araquidonato 5-Lipoxigenase/metabolismo , Biomarcadores/metabolismo , Proliferação de Células/efeitos dos fármacos , Citocinas/genética , Citocinas/metabolismo , Ativação Enzimática/efeitos dos fármacos , Regulação Enzimológica da Expressão Gênica/efeitos dos fármacos , Humanos , Subunidade alfa do Fator 1 Induzível por Hipóxia/genética , Subunidade alfa do Fator 1 Induzível por Hipóxia/metabolismo , Inflamação/tratamento farmacológico , Inflamação/genética , Inflamação/metabolismo , Inflamação/patologia , Leucócitos Mononucleares/citologia , Leucócitos Mononucleares/metabolismo , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Mitógenos/farmacologia , Monoglicerídeos/uso terapêutico , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Adulto Jovem
16.
Breastfeed Med ; 12(6): 377-380, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28481632

RESUMO

BACKGROUND: Hypernatremic dehydration is well described in exclusively breastfed neonates, although life-threatening complications are rarely reported. MATERIALS AND METHODS: The present article describes a case of severe hypernatremic dehydration in a previously healthy term neonate. Other published cases of severe complications of hypernatremic dehydration are discussed. RESULTS: The exclusively breastfed neonate described had severe hypernatremic dehydration because of inadequate milk intake, with disseminated intravascular coagulation and right lower limb gangrene that required amputation of all five toes and surgical debridement of the metatarsals. The usual etiology of hypernatremic dehydration in this age group is insufficient breast milk intake. Here, the infant's mother was treated for bipolar disorder with lamotrigine 250 mg orally once daily, aripiprazole 15 mg orally once daily, and sertraline 100 mg orally once daily. CONCLUSIONS: Awareness of these complications should prompt close follow-up of the infant with poor weight gain. The role of maternal medication as a risk factor for hypernatremic dehydration among exclusively breastfed infants needs to be further explored.


Assuntos
Antidepressivos/efeitos adversos , Aleitamento Materno/efeitos adversos , Desidratação/induzido quimicamente , Gangrena/induzido quimicamente , Hipernatremia/induzido quimicamente , Extremidade Inferior/patologia , Leite Humano/química , Adulto , Amputação Cirúrgica , Antidepressivos/administração & dosagem , Antidepressivos/farmacocinética , Aripiprazol/efeitos adversos , Aripiprazol/farmacocinética , Transtorno Bipolar/tratamento farmacológico , Desbridamento , Desidratação/complicações , Desidratação/fisiopatologia , Feminino , Gangrena/complicações , Gangrena/patologia , Gangrena/cirurgia , Humanos , Hipernatremia/complicações , Hipernatremia/fisiopatologia , Recém-Nascido , Lamotrigina , Extremidade Inferior/cirurgia , Masculino , Mães , Sertralina/efeitos adversos , Sertralina/farmacocinética , Dedos do Pé/patologia , Dedos do Pé/cirurgia , Triazinas/efeitos adversos , Triazinas/farmacocinética
17.
Clin Drug Investig ; 37(7): 669-677, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28421382

RESUMO

BACKGROUND: To date, no predictive biomarker for the efficacy of FOLFIRINOX in metastatic pancreatic adenocarcinoma has been demonstrated. Deficiency in O6-methylguanine-DNA methyltransferase (MGMT) has been associated with a therapeutic response in endocrine tumors of the pancreas and the lack of expression of protein 53 (p53) could interfere with the action of MGMT. OBJECTIVE: The aim of our study was to assess the prevalence of MGMT and p53 in patients with metastatic pancreatic adenocarcinoma treated with FOLFIRINOX as a first-line treatment and to investigate their association with therapeutic response and survival. PATIENTS AND METHODS: The immunohistochemical expression of MGMT was recorded as present or absent and the expression of p53 was semi-quantitatively scored in 30 patients with metastatic pancreatic adenocarcinoma, at Angers Hospital in France between September 2011 and June 2015. Clinical and radiologic data were collected retrospectively. RESULTS: The presence or absence of MGMT expression entailed no significant differences in response rate. Median values of progression-free survival (PFS) and overall survival (OS) were lower in patients with MGMT expression, but sample size is too small to conclude that there is a statistically significant difference. No significant relationship for response rate and PFS was observed in relation with p53 expression. By contrast, patients with a strong tumor expression of p53 had a significantly lower OS compared to patients with no or weak expression of the protein (p = 0.027). There was a positive correlation between the expression of p53 and MGMT (p = 0.08). CONCLUSIONS: These preliminary findings suggest that for patients treated with FOLFIRINOX as a first-line treatment for metastatic pancreatic adenocarcinoma, the immunohistochemical evaluation of MGMT could not predict the clinical outcome; however, the survival was not significant probably because of the under-powered study (due to small sample size). A strong tumor expression of p53 is associated with a poor prognosis of OS.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , O(6)-Metilguanina-DNA Metiltransferase/genética , Neoplasias Pancreáticas/tratamento farmacológico , Idoso , Intervalo Livre de Doença , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Neoplasias Pancreáticas
18.
Geriatr Psychol Neuropsychiatr Vieil ; 15(1): 19-24, 2017 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-28120773

RESUMO

Iatrogenic effects represent a large part of emergency admissions among elderly people. Throughout the care pathway of a patient, whether he is at home or hospitalized, many different health professionals are involved regarding the patient's medication. Medication reconciliation is one way to prevent adverse drug events at all care transitions for every patient by eliminating undocumented intentional discrepancies and unintentional discrepancies in the patient's medication. The aim of this article is to present the different activities of clinical pharmacy developed since 2011 in a follow up and rehabilitation geriatric care service, including medication reconciliation activity. Monitoring of this activity started in March 2014, indicators show that almost 90% of patients were reconciled at admission and discharge from the geriatric unit. Physicians and pharmacists play an active role in reviewing, managing and monitoring a patient's medication. Care coordination and communication among the many members of the medical care team have become one of the greatest challenges healthcare professionals face. At the time of discharge, the patient also plays a key role in medication reconciliation and should be educated when it's possible on the importance of managing medication information. Finally, the hospital pharmacist's role is to keep the primary care physicians and community pharmacists informed about medication changes.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/prevenção & controle , Geriatria/métodos , Reconciliação de Medicamentos/métodos , Idoso , Idoso de 80 Anos ou mais , Monitoramento de Medicamentos , França , Humanos , Erros de Medicação/prevenção & controle , Farmacêuticos , Serviço de Farmácia Hospitalar
19.
PLoS One ; 11(12): e0167058, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27935998

RESUMO

Inflammation is a major burden in respiratory diseases, resulting in airway hyperresponsiveness. Our hypothesis is that resolution of inflammation may represent a long-term solution in preventing human bronchial dysfunctions. The aim of the present study was to assess the anti-inflammatory effects of RvD2, a member of the D-series resolving family, with concomitant effects on ASM mechanical reactivity. The role and mode of action of RvD2 were assessed in an in vitro model of human bronchi under pro-inflammatory conditions, induced either by 1 µM LTD4 or 10 ng/ml TNF-α pre-treatment for 48h. TNF-α and LTD4 both induced hyperreactivity in response to pharmacological stimuli. Enhanced 5-Lipoxygenase (5-LOX) and cysteinyl leukotriene receptor 1 (CysLTR1) detection was documented in LTD4 or TNF-α pre-treated human bronchi when compared to control (untreated) human bronchi. In contrast, RvD2 treatments reversed 5-LOX/ß-actin and CysLTR1/ß-actin ratios and decreased the phosphorylation levels of AP-1 subunits (c-Fos, c-Jun) and p38-MAP kinase, while increasing the detection of the ALX/FPR2 receptor. Moreover, various pharmacological agents revealed the blunting effects of RvD2 on LTD4 or TNF-α induced hyper-responsiveness. Combined treatment with 300 nM RvD2 and 1 µM WRW4 (an ALX/FPR2 receptor inhibitor) blunted the pro-resolving and broncho-modulatory effects of RvD2. The present data provide new evidence regarding the role of RvD2 in a human model of airway inflammation and hyperrresponsiveness.


Assuntos
Brônquios/efeitos dos fármacos , Ácidos Docosa-Hexaenoicos/farmacologia , Leucotrieno D4/farmacologia , Fator de Necrose Tumoral alfa/farmacologia , Actinas/metabolismo , Araquidonato 5-Lipoxigenase/metabolismo , Western Blotting , Brônquios/metabolismo , Brônquios/fisiopatologia , Broncoconstrição/efeitos dos fármacos , Humanos , Inflamação/metabolismo , Inflamação/prevenção & controle , Fosforilação/efeitos dos fármacos , Receptores de Leucotrienos/metabolismo , Técnicas de Cultura de Tecidos , Fator de Transcrição AP-1/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo
20.
Eur J Pharmacol ; 792: 70-77, 2016 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-27818127

RESUMO

Newly-synthesized, eicosapentaenoic acid monoacylglyceride (MAG-EPA), docosahexaenoic acid monoacylglyceride (MAG-DHA) and docosapentaenoic acid monoacylglyceride (MAG-DPA) have been demonstrated to display beneficial effects in several disorders including chronic airway inflammatory diseases, pulmonary hypertension, rheumatoid arthritis, and lung and colorectal adenocarcinoma. Recent evidence reveals that omega-3 polyunsaturated fatty acid (n-3 PUFA) precursors provide a window to explore the pathobiology of inflammatory disease as well as structural templates for the design of novel pro-resolving precursors that are well absorbed by the gastrointestinal (GI) tract and metabolized into bioactive metabolites. These metabolites are found in blood circulation and tissues thereby mediating numerous immuno-modulatory effects through the activation of specific receptors. Bioactive metabolites regulate cell membrane functions, lipid signaling and gene expressions encoding for enzymes responsible for lipid storage and fatty acid metabolism. This review highlights recent experimental findings regarding n-3 PUFA monoacylglyceride research, as well as the pharmacological and medicinal relevance of these stereospecific derivatives in the resolution of chronic inflammatory diseases.


Assuntos
Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Antineoplásicos/química , Antineoplásicos/farmacologia , Descoberta de Drogas/métodos , Ácidos Graxos Ômega-3/química , Ácidos Graxos Ômega-3/farmacologia , Monoglicerídeos/química , Animais , Proliferação de Células/efeitos dos fármacos , Humanos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA