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1.
J Cell Biochem ; 119(9): 7151-7165, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29905007

RESUMO

Breast cancer (BC) is the leading cause of cancer mortality in women worldwide. It recently was proven that miRNAs play a critical role in BC development. The use of natural agents for control of cancer by modulating miRNAs is promising. Oleuropein is a natural polyphenolic agent with anti-neoplastic properties and is well tolerated by humans. This study was undertaken to determine the therapeutic effects of oleuropein through modulation of master oncomiRs (miR-21 and miR-155) in BC cells. The present study provides the first link between miRNA and oleuropein as a mechanism in BC. MCF-7 cells were tested with and without oleuropein and the cell viability, apoptosis, and migration were examined. The effect of oleuropein on miR-21 and miR-155 expression was assessed through qRT-PCR. It was found that oleuropein induced apoptosis and retarded cell migration and invasion in a dose-dependent manner in the human MCF7 BC cell line. It was observed that oleuropein significantly decreased expression of both miR-21 and miR-155 over time in a dose-dependent manner. These results demonstrate that oleuropein is a potential therapeutic and preventive agent for BC. Oleuropein exhibits an anti-cancer effect by modulation of tumor suppressor gene expression, which is targeted by oncomiRs.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/prevenção & controle , Iridoides/uso terapêutico , MicroRNAs/genética , Análise de Variância , Apoptose/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Regulação para Baixo , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Glucosídeos Iridoides , Células MCF-7 , Invasividade Neoplásica/prevenção & controle
2.
J Neural Transm (Vienna) ; 125(9): 1401, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29644396

RESUMO

Unfortunately, original article has been published without acknowledgement section.

3.
J Neural Transm (Vienna) ; 125(4): 699-703, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29255941

RESUMO

Dopamine was shown to induce mydriasis by excitation of alpha-adrenergic receptors at the dilator pupillae muscle. Pupilla diameter may thus serve as an indirect measure of peripheral pharmacokinetics of L-DOPA and dopamine. The aim of this study is to evaluate the effect of L-DOPA dosage on pupillometric parameters in Parkinson's disease (PD) patients. Sixteen PD patients and 14 healthy control subjects (CS) were studied. The statistical analysis revealed significant differences between CS and PD patients for the mean maximum and minimum pupil diameters (p = 0.017, p = 0.028, respectively), with higher values found in PD. Moreover, a significant dose-response relationship was found between the maximum pupil diameter and both the morning L-DOPA dose (R 2 = 0.78) and the total daily L-DOPA dose (R 2 = 0.93). A sigmoid-shaped curve best describes the dose-response relationship, with a ceiling effect at about 400 mg L-DOPA daily dose. In conclusion, measuring pupillometric parameters represents a sensitive tool for non-invasive evaluation of the peripheral effect of L-DOPA, especially with daily doses below 400 mg L-DOPA.


Assuntos
Antiparkinsonianos/administração & dosagem , Levodopa/administração & dosagem , Doença de Parkinson/tratamento farmacológico , Pupila/efeitos dos fármacos , Adulto , Idoso , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
4.
J Clin Pharm Ther ; 43(2): 196-201, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28940525

RESUMO

WHAT IS KNOWN AND OBJECTIVE: Phenobarbital is the first-line treatment of seizures in asphyxiated neonates; however, due to the high pharmacokinetic variability in this population, there is no consensus on the optimal dosage regimen. This study was conducted to identify variables that affect phenobarbital fate during routine clinical care and then to evaluate the dosage schedule that could be applied in term asphyxiated neonates with respect to achieving the target therapeutic range. METHODS: Phenobarbital pharmacokinetics was calculated based on serum concentrations measurements using one-compartmental model. Body weight, body surface area, gestational age, creatinine clearance, total bilirubin, alanine aminotransferase, aspartate aminotransferase, international normalized ratio, Apgar scores, umbilical cord arterial pH and base excess were explored as covariates in linear regression models. Based on this analysis, phenobarbital loading and maintenance dose regimen were projected. RESULTS AND DISCUSSION: In the whole study population (N = 36), phenobarbital volume of distribution, clearance and half-life median (interquartile range) values were 0.49 (0.38-0.59) L/kg, 0.0045 (0.0034-0.0055) L/h/kg and 75.1 (60.2-103.3) hours, respectively. The drug volume of distribution was associated with body weight, length and body surface area, whereas clearance was not in relationship with any explored features. Weight-normalized loading dose of 15 mg/kg and weight-normalized daily maintenance dose of 3 mg/kg proved to be optimal in our study population to reach phenobarbital therapeutic range. WHAT IS NEW AND CONCLUSIONS: This study presents basis for phenobarbital initial dosing in term asphyxiated neonates during first week of life. Phenobarbital weight-normalized loading dose of 15 mg/kg lead to simulated target peak concentrations in 72% of neonates, weight-normalized maintenance dose of 3 mg/kg lead to steady state within therapeutic window in the same proportion of patients.


Assuntos
Asfixia/tratamento farmacológico , Hipóxia-Isquemia Encefálica/tratamento farmacológico , Fenobarbital/administração & dosagem , Fenobarbital/farmacocinética , Asfixia/metabolismo , Feminino , Idade Gestacional , Meia-Vida , Humanos , Hipóxia-Isquemia Encefálica/metabolismo , Recém-Nascido , Masculino , Estudos Retrospectivos , Distribuição Tecidual
5.
Rev Epidemiol Sante Publique ; 66(3): 181-185, 2018 May.
Artigo em Francês | MEDLINE | ID: mdl-29625861

RESUMO

BACKGROUND: Newborn screening for sickle cell anemia is necessary in Africa where the disease is more frequent. Hemoglobin electrophoresis is used for screening, but is limited by a high cost and difficult access. Sickling test (Emmel test), which is more affordable and technically more accessible, is often requested for prenatal assessment of pregnant women in West African areas to reserve screening for newborns from mothers in whom the positive sickling test attests the presence of hemoglobin S. This study aims to evaluate the number of undetected sickle cell anemia newborns by a screening policy targeting only newborns from mothers in whom a sickling test would have been positive. METHODS: From 2010 to 2012, in Bamako, Mali, West Africa, 2489 newborns were routinely screened for sickle cell anemia at the umbilical cord or heel by isoelectrofocusing and, if necessary, by high-performance liquid chromatography. These newborns were born from 2420 mothers whose hemoglobin was studied by isoelectrofocusing. The data was recorded and processed using Excel software version 14.0.0. We calculated the frequency of the sickle cell gene in mothers and newborns as well as the number of SCA newborns from heterozygous or C homozygous mothers. RESULTS: Of the 2489 newborns, 16 had sickle cell anemia (6 SS and 10 SC); 198 had the sickle cell trait; 139 were AC and 1 was CC. Of the 10 newborns with SC profile, 3 were born from mothers not carrying the S gene but the C gene of hemoglobin and in which an Emmel test would have been negative. CONCLUSION: Targeted newborn screening, based on the results of sickling test in pregnant women, would misdiagnose more than one of six sickle cell anemia newborns who would not benefit from early care. Cost-effectiveness studies of routine newborn screening for sickle cell anemia should lead to a better screening strategy in contexts where hemoglobin S and other hemoglobin defect genes coexist.


Assuntos
Anemia Falciforme/diagnóstico , Testes Hematológicos/métodos , Triagem Neonatal/métodos , Vigilância da População/métodos , Complicações Hematológicas na Gravidez/diagnóstico , Diagnóstico Pré-Natal , Adulto , África Ocidental/epidemiologia , Anemia Falciforme/sangue , Feminino , Testes Hematológicos/normas , Testes Hematológicos/estatística & dados numéricos , Hemoglobina Falciforme/análise , Humanos , Recém-Nascido , Limite de Detecção , Masculino , Mali/epidemiologia , Mães , Valor Preditivo dos Testes , Gravidez , Complicações Hematológicas na Gravidez/sangue , Diagnóstico Pré-Natal/métodos , Diagnóstico Pré-Natal/normas
6.
Hemoglobin ; 40(5): 319-322, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27690152

RESUMO

The aim of this study was to determine the molecular spectrum and frequency of deletional and nondeletional α-thalassemia (α-thal) mutations and the genotype-phenotype correlation in common mutations in the Azeri population of Northwestern Iran. A total of 1256 potential carriers with microcytic and hypochromic anemia and normal Hb A2 levels (<3.5%) and without iron deficiency anemia plus three fetuses were identified. Multiplex gap-polymerase chain reaction (gap-PCR) and sequencing for α-thal mutations were carried out. In 606 individuals, the α-globin gene was normal, but in 650 persons (51.6%) and three fetuses, 10 different mutations were detected. The most frequent deletional genotypes were as follows: αα/-α3.7 (61.7%), -α3.7/-α3.7 (11.9%), αα/-α4.2 (4.6%), αα/- -MED (4.3%) and αα/-(α)20.5 (3.8%). The most frequent nondeletional genotypes were αα/αIVS-I (-5 nt)α (HBA2: c.95+2_95+6delTGAGG) and αα/αPoly A2α [polyadenylation signal (polyA2) (AATAAA>AATGAA); HBA2: c.*96G>A] with frequencies of 1.08% and 0.92%, respectively. Meanwhile, 7.71% of individuals with a proven ß-thalassemia (ß-thal) mutation were found to also carry an α-thal mutation. Persons having two functional α-globin genes showed lower mean corpuscular volume (MCV) and mean corpuscular hemoglobin (Hb) (MCH) values compared to those with one mutated α-globin gene, provided that they had normal ß-globin genes. Overall, the incidence of α-thal was 2.7% in the Azeri population in Northwestern Iran. Our results showed that the variability of α-thal mutations are high in the Azeri population and that α-thal mutations are highly heterogeneous in both deletional and nondeletional genotype aspects.


Assuntos
Mutação , Deleção de Sequência/genética , alfa-Globinas/genética , Talassemia alfa/genética , Feminino , Frequência do Gene , Estudos de Associação Genética , Genótipo , Heterozigoto , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Gravidez , Talassemia alfa/epidemiologia
7.
Genet Mol Res ; 12(1): 282-92, 2013 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-23408415

RESUMO

Bacteria oxidize organic matter and nutrients to produce electric energy in microbial fuel cells (MFC) - a technology of increasing importance because of its sustainability. To improve the performance of MFCs, it is necessary not only to gain a better understanding of MFC engineering designs, but also to improve the understanding of the composition of the microbial communities in MFCs. Fast and efficient DNA extraction protocols that are suitable for extracting diverse bacterial genomes are necessary to identify the bacterial diversity present in MFCs and to further monitor the dynamic changes of microbial communities. This study focused on testing different direct cell lysis protocols to extract DNA from a microbial sludge harvested from an MFC. The protocol that achieved the best results was based on a previous study, but was modified by eliminating a chaotropic salt and the special columns used for nucleic acid purification. The efficiency of this less expensive and more straightforward protocol was confirmed by PCR amplification of the 16S rRNA gene and denaturing gradient gel electrophoresis analysis, which confirmed the extraction of multiple genomes. The sequences of 10 clones revealed the presence of phyla, Proteobacteria, Firmicutes and Actinobacteria, comprising both Gram-negative and Gram-positive bacteria. Some of these bacteria were identified at the genus level, e.g., Clostridium, Pseudoxanthomonas, Tistrella, and Enterobacter; these genera have been described in active sludges from wastewater treatment, supporting the congruency of our results. Therefore, this protocol is a useful tool for analysis of the bacteria responsible for energy production in MFCs.


Assuntos
Bactérias/química , Fontes de Energia Bioelétrica/microbiologia , DNA Bacteriano/química , DNA Bacteriano/isolamento & purificação , Esgotos/microbiologia , Reação em Cadeia da Polimerase/métodos
8.
Prague Med Rep ; 114(4): 205-13, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24485337

RESUMO

Nuclear receptors are intracellular proteins which, having been activated by their more or less specific ligands, regulate (usually increase) the transcription of target genes. They thus participate in a regulation of a number of physiologic functions. Some of them - especially pregnane xenobiotic receptors - serve primarily as protection of the organism from the xenobiotic intoxication. This is because many xenobiotics activate their function which consists in increasing the gene expression of enzymes involved in the metabolism of xenobiotics and detoxication drug transporters. Clarification of these mechanisms enabled the understanding of the substance of many drug-drug interactions observed in the clinical practice. Polymorphism of the nuclear receptors appears to be one of the causes of the interindividual variability in response to drug administration.


Assuntos
Regulação da Expressão Gênica , Receptores Citoplasmáticos e Nucleares , Xenobióticos/metabolismo , Transporte Biológico/genética , Humanos , Xenobióticos/farmacologia
9.
Physiol Res ; 71(4): 517-526, 2022 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-35770473

RESUMO

Metabolic flux investigations of cells and tissue samples are a rapidly advancing tool in diverse research areas. Reliable methods of data normalization are crucial for an adequate interpretation of results and to avoid a misinterpretation of experiments and incorrect conclusions. The most common methods for metabolic flux data normalization are to cell number, DNA and protein. Data normalization may be affected by a variety of factors, such as density, healthy state, adherence efficiency, or proportional seeding of cells. The mussel-derived adhesive Cell-Tak is often used to immobilize poorly adherent cells. Here we demonstrate that this coating strongly affects the fluorescent detection of DNA leading to an incorrect and highly variable normalization of metabolic flux data. Protein assays are much less affected and cell counting can virtually completely remove the effect of the coating. Cell-Tak coating also affects cell shape in a cell line-specific manner and may change cellular metabolism. Based on these observations we recommend cell counting as a gold standard normalization method for Seahorse metabolic flux measurements with protein content as a reasonable alternative.


Assuntos
DNA , Proteínas de Membrana
10.
Front Integr Neurosci ; 16: 804221, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35221938

RESUMO

Sound localization requires rapid interpretation of signal speed, intensity, and frequency. Precise neurotransmission of auditory signals relies on specialized auditory brainstem synapses including the calyx of Held, the large encapsulating input to principal neurons in the medial nucleus of the trapezoid body (MNTB). During development, synapses in the MNTB are established, eliminated, and strengthened, thereby forming an excitatory/inhibitory (E/I) synapse profile. However, in neurodevelopmental disorders such as autism spectrum disorder (ASD), E/I neurotransmission is altered, and auditory phenotypes emerge anatomically, molecularly, and functionally. Here we review factors required for normal synapse development in this auditory brainstem pathway and discuss how it is affected by mutations in ASD-linked genes.

11.
Physiol Res ; 71(1): 147-157, 2022 03 25.
Artigo em Inglês | MEDLINE | ID: mdl-35043649

RESUMO

The aim of this study was to evaluate therapeutic potential of edaravone in the murine model of multiple sclerosis, experimental autoimmune encephalomyelitis (EAE) and to expand the knowledge of its mechanism of action. Edaravone (6 mg/kg/day) was administered intraperitoneally from the onset of clinical symptoms until the end of the experiment (28 days). Disease progression was assessed daily using severity scores. At the peak of the disease, histological analyses, markers of oxidative stress (OS) and parameters of mitochondrial function in the brains and spinal cords (SC) of mice were determined. Gene expression of inducible nitric oxide synthase (iNOS), nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1) and peroxisome proliferator-activated receptor-gamma coactivator (PGC)-1alpha was determined at the end of the experiment. Edaravone treatment ameliorated EAE severity and attenuated inflammation in the SC of the EAE mice, as verified by histological analysis. Moreover, edaravone treatment decreased OS, increased the gene expression of the Nrf2 and HO-1, increased the activity of the mitochondrial complex II/III, reduced the activity of the mitochondrial complex IV and preserved ATP production in the SC of the EAE mice. In conclusion, findings in this study provide additional evidence of edaravone potential for the treatment of multiple sclerosis and expand our knowledge of the mechanism of action of edaravone in the EAE model.


Assuntos
Encefalomielite Autoimune Experimental , Encefalomielite , Animais , Edaravone/farmacologia , Encefalomielite Autoimune Experimental/patologia , Expressão Gênica , Heme Oxigenase-1/genética , Heme Oxigenase-1/metabolismo , Camundongos , Fator 2 Relacionado a NF-E2/genética , Fator 2 Relacionado a NF-E2/metabolismo , Índice de Gravidade de Doença
12.
Sci Rep ; 12(1): 18521, 2022 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-36323869

RESUMO

Specialized sound localization circuit development requires synapse strengthening, refinement, and pruning. Many of these functions are carried out by microglia, immune cells that aid in regulating neurogenesis, synaptogenesis, apoptosis, and synaptic removal. We previously showed that postnatal treatment with BLZ945 (BLZ), an inhibitor of colony stimulating factor 1 receptor (CSF1R), eliminates microglia in the brainstem and disables calyceal pruning and maturation of astrocytes in the medial nucleus of the trapezoid body (MNTB). BLZ treatment results in elevated hearing thresholds and delayed signal propagation as measured by auditory brainstem responses (ABR). However, when microglia repopulate the brain following the cessation of BLZ, most of the deficits are repaired. It is unknown whether this recovery is achievable without the return of microglia. Here, we induced sustained microglial elimination with a two-drug approach using BLZ and PLX5622 (PLX). We found that BLZ/PLX treated mice had impaired calyceal pruning, diminished astrocytic GFAP in the lateral, low frequency, region of MNTB, and elevated glycine transporter 2 (GLYT2) levels. BLZ/PLX treated mice had elevated hearing thresholds, diminished peak amplitudes, and altered latencies and inter-peak latencies. These findings suggest that microglia are required to repopulate the brain in order to rectify deficits from their ablation.


Assuntos
Microglia , Corpo Trapezoide , Animais , Camundongos , Microglia/fisiologia , Tronco Encefálico , Audição , Sinapses
13.
J Evid Based Soc Work (2019) ; 18(1): 101-115, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32865128

RESUMO

The objective of this article is to corroborate the original Dagenais-Desmarais & Savoie psychological well-being measurement instrument in the civil service in Gabon. This instrument is composed of five factors relating to lived experiences of psychological well-being in the workplace. To adapt it to the civil service in Gabon, 310 civil servants from various ministries completed a measurement tool. This was also done for nomological purposes and to assess job demands, job control, social support, and job satisfaction. Following exploratory and confirmatory factor analyses, it appears that the dimensional structure of psychological well-being in the workplace (PWBW) is identical to the initial structure developed by Dagenais-Desmarais and Savoie. Moreover, the metric properties on the PWBW scale of the present research are satisfactory. The analyses confirm all the predictions of the nomological network, reinforcing the validity of the adaptation of the scale developed by Dagenais-Desmarais and Savoie to the world of public service work in Gabon.


Assuntos
Pessoal Administrativo/psicologia , Satisfação Pessoal , Psicometria , Inquéritos e Questionários/normas , Local de Trabalho/psicologia , Adulto , Feminino , Gabão , Humanos , Satisfação no Emprego , Masculino , Pessoa de Meia-Idade , Saúde Ocupacional , Estresse Psicológico
14.
eNeuro ; 8(2)2021.
Artigo em Inglês | MEDLINE | ID: mdl-33558268

RESUMO

Signaling between neurons and glia is necessary for the formation of functional neural circuits. A role for microglia in the maturation of connections in the medial nucleus of the trapezoid body (MNTB) was previously demonstrated by postnatal microglial elimination using a colony stimulating factor 1 receptor (CSF1R). Defective pruning of calyces of Held and significant reduction of the mature astrocyte marker glial fibrillary acidic protein (GFAP) were observed after hearing onset. Here, we investigated the time course required for microglia to populate the mouse MNTB after cessation of CSF1R inhibitor treatment. We then examined whether defects seen after microglial depletion were rectified by microglial repopulation. We found that microglia returned to control levels at four weeks of age (18 d postcessation of treatment). Calyceal innervation of MNTB neurons was comparable to control levels at four weeks and GFAP expression recovered by seven weeks. We further investigated the effects of microglia elimination and repopulation on auditory function using auditory brainstem recordings (ABRs). Temporary microglial depletion significantly elevated auditory thresholds in response to 4. 8, and 12 kHz at four weeks. Treatment significantly affected latencies, interpeak latencies, and amplitudes of all the ABR peaks in response to many of the frequencies tested. These effects largely recovered by seven weeks. These findings highlight the functions of microglia in the formation of auditory neural circuits early in development. Further, the results suggest that microglia retain their developmental functions beyond the period of circuit refinement.


Assuntos
Tronco Encefálico , Microglia , Animais , Astrócitos/metabolismo , Vias Auditivas/metabolismo , Tronco Encefálico/metabolismo , Camundongos , Microglia/metabolismo , Neuroglia/metabolismo , Neurônios/metabolismo , Receptores de Fator Estimulador das Colônias de Granulócitos e Macrófagos/metabolismo
15.
J Comp Neurol ; 529(11): 3076-3097, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-33797066

RESUMO

The precise and specialized circuitry in the auditory brainstem develops through adaptations of cellular and molecular signaling. We previously showed that elimination of microglia during development impairs synaptic pruning that leads to maturation of the calyx of Held, a large encapsulating synapse that terminates on neurons of the medial nucleus of the trapezoid body (MNTB). Microglia depletion also led to a decrease in glial fibrillary acidic protein (GFAP), a marker for mature astrocytes. Here, we investigated the role of signaling through the fractalkine receptor (CX3CR1), which is expressed by microglia and mediates communication with neurons. CX3CR1-/- and wild-type mice were studied before and after hearing onset and at 9 weeks of age. Levels of GFAP were significantly increased in the MNTB in mutants at 9 weeks. Pruning was unaffected at the calyx of Held, but we found an increase in expression of glycinergic synaptic marker in mutant mice at P14, suggesting an effect on maturation of inhibitory inputs. We observed disrupted tonotopic gradients of neuron and calyx size in MNTB in mutant mice. Auditory brainstem recording (ABR) revealed that CX3CR1-/- mice had normal thresholds and amplitudes but decreased latencies and interpeak latencies, particularly for the highest frequencies. These results demonstrate that disruption of fractalkine signaling has a significant effect on auditory brainstem development. Our findings highlight the importance of neuron-microglia-astrocyte communication in pruning of inhibitory synapses and establishment of tonotopic gradients early in postnatal development.


Assuntos
Astrócitos/metabolismo , Tronco Encefálico/metabolismo , Receptor 1 de Quimiocina CX3C/genética , Mutação/genética , Sinapses/genética , Sinapses/metabolismo , Animais , Vias Auditivas/metabolismo , Receptor 1 de Quimiocina CX3C/deficiência , Potenciais Evocados Auditivos do Tronco Encefálico/fisiologia , Feminino , Expressão Gênica , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Plasticidade Neuronal/fisiologia , Tempo de Reação/fisiologia
16.
Mali Med ; 36(1): 49-51, 2021.
Artigo em Francês | MEDLINE | ID: mdl-37973573

RESUMO

OBJECTIVES: The objectives were to describe the epidemiological and prognostic aspects of eclampsia in the Bougouni reference health center. METHODS: This was a transversal prospective, descriptive study from January 1 to December 31, 2015 in the gynecology-obstetrics department of Bougouni reference health center. Were included, all pregnant or postpartum women diagnosed with eclampsia during the study period. RESULTS: The frequency of eclampsia was 2.54%. They were adolescent girls in 50% of cases, primigest in 62.5% of cases, unschooled in 67.5% of cases, having not performed any antenatal care in 70% of cases. Eclampsia occurred in antepartum in 37.5% of cases, in 5% in perpartum and in 57.5% in postpartum. Therapeutically, nicardipine with 72.5% and nifedipine with 22.5% were the antihypertensive drugs used. As for anticonvulsants, magnesium sulfate (MgSO4) was used in 92.5% and diazepam in 7.5%. The maternal-fetal prognosis was marked by 2.5% of maternal death, 27% of prematurity and 27.5% of fetal death in utero. CONCLUSION: Eclampsia is a dreadful pathology with serious maternal and fetal complications.


OBJECTIFS: Les objectifs étaient de décrire les aspects épidémiologique et pronostique de l'éclampsie dans le centre de santé de référence de Bougouni. MÉTHODES: Il s'agissait d'une étude transversale prospective, descriptivedu 1er janvier au 31 décembre 2015 dans le service de gynécologie-obstétrique du centre de santé de référence de Bougouni. Ont été incluses, toutes les femmes enceintes ou les accouchées chez qui le diagnostic de crise d'éclampsie a été retenu pendant la période d'étude. RÉSULTATS: La fréquence de l'éclampsie a été de 2,54%. Il s'agissait d'adolescentes dans 50% des cas, primigestes dans 62,5% des cas, non scolarisées dans 67,5% des cas,n'ayant effectuées aucune consultation prénatale dans70% des cas. L'éclampsie est survenue en antépartumdans 37,5% des cas, dans 5% en perpartum et dans 57,5% en postpartum. Sur le plan thérapeutique, la nicardipine avec 72,5% et la nifédipine avec 22,5% ont été les antihypertenseurs utilisés. Quant aux anticonvulsivants, le sulfate de magnésium (MgSO4) a été utilisé dans 92,5% et le diazépam dans 7,5%. Le pronostic materno-fœtal a été marqué par 2,5% de décès maternel, 27% de prématurité et 27,5% de mort fœtale in-utéro. : L'éclampsie est une pathologie redoutable aux complications maternelles et fœtales graves.

17.
Physiol Res ; 69(1): 1-19, 2020 02 19.
Artigo em Inglês | MEDLINE | ID: mdl-31852206

RESUMO

Multiple sclerosis (MS) is an autoimmune neurological disease characterized by chronic inflammation of the central nervous system (CNS), leading to demyelination and axonal damage and resulting in a range of physical, mental or even psychiatric symptoms. Key role of oxidative stress (OS) in the pathogenesis of MS has been suggested, as indicated by the biochemical analysis of cerebrospinal fluid and blood samples, tissue homogenates, and animal models of multiple sclerosis. OS causes demyelination and neurodegeneration directly, by oxidation of lipids, proteins and DNA but also indirectly, by inducing a dysregulation of the immunity and favoring the state of pro-inflammatory response. In this review, we discuss the interrelated mechanisms of the impaired redox signaling, of which the most important are inflammation-induced production of free radicals by activated immune cells and growth factors, release of iron from myelin sheath during demyelination and mitochondrial dysfunction and consequent energy failure and impaired oxidative phosphorylation. Review also provides an overview of the interplay between inflammation, immunity and OS in MS. Finally, this review also points out new potential targets in MS regarding attenuation of OS and inflammatory response in MS.


Assuntos
Esclerose Múltipla/metabolismo , Oxirredução , Animais , Antioxidantes/metabolismo , Antioxidantes/uso terapêutico , Humanos , Inflamação/metabolismo , Ferro/metabolismo , Mitocôndrias/metabolismo , Esclerose Múltipla/imunologia , Esclerose Múltipla/terapia , Espécies Reativas de Oxigênio/metabolismo
18.
Mali Med ; 35(4): 23-26, 2020.
Artigo em Francês | MEDLINE | ID: mdl-37978748

RESUMO

AIM: The aim was to compare the maternal-fetal prognosis of pregnancies in large multiparous with that of other parities. MATERIALS AND METHODS: We conducted a case-control study from March 1st, 2014 to February 1st, 2015. It concerned all parturients admitted in our service during the study period. We have chosen 1 case for 2 witnesses. All the large multiparous were included as cases and as witnesses the primiparous, the pauciparous and the multiparous who gave birth just before and after the case. The statistical test was the Chi2 with a significance level at 5%. RESULTS: The frequency of pregnancy in the large multiparous was 4.93%. They were housewives in 84% of cases, unschooled in 74.7% of cases. The maternal-fetal outcome was dominated by uterine rupture in 0.6% of cases, immediate postpartum hemorrhage in 9.8% of cases, vicious presentations in 5.5% of cases and cord prolapse in 6.8% of cases. CONCLUSION: Large multiparity is common in our practice. It is a high-risk pregnancy because of its many maternal-fetal complications.


BUT: Le but était de comparer le pronostic materno-fœtal des grossesses chez les grandes multipares à celui des autres parités. MATÉRIELS ET MÉTHODES: Nous avons réalisé une étude cas-témoins du 1er mars 2014 au 1er février 2015. Elle a concerné toutes les parturientes admises dans le service pendant la période d'étude. Nous avons choisi 1 cas pour 2 témoins. Ont été incluses comme cas toutes les grandes multipares et comme témoins les primipares, les paucipares et les multipares ayant accouchées juste avant et juste après le cas. Le test statistique utilisé a été le Chi2 avec un seuil de significativité fixé à 5%. RÉSULTATS: La fréquence de la grossesse chez la grande multipare était de 4,93%. Il s'agissait de femmes au foyer dans 84% des cas, non scolarisées dans 74,7% des cas. Le pronostic materno-fœtal a été dominé par la rupture utérine dans 0,6% des cas, l'hémorragie de la délivrance dans 9,8% des cas, les présentations vicieuses dans 5,5% des cas et la procidence du cordon dans 6,8% des cas. CONCLUSION: La grande multiparité est fréquente dans notre pratique. C'est une grossesse à haut risque à cause de ses nombreuses complications materno-fœtales.

19.
Mali Med ; 35(1): 43-49, 2020.
Artigo em Francês | MEDLINE | ID: mdl-37978759

RESUMO

OBJECTIF: the purpose of this work was to study the infections associated with the care in the department of gynecology - obstetrics of the University Hospital Center Gabriel Touré (CHU G. Touré). PATIENTS AND METHODS: This was an epidemiological, descriptive, and analytical study carried out in the gynecology-obstetrics department of G. Touré University Hospital, from April 11, 2016 to August 29, 2016 (4 monthset 18 days), with a prospective collection of data that focused on the characteristics clinical and laboratory-based care-associated infections in patients during their hospitalization. Included in the study were all hospitalized patients (operated or not) in the gynecology obstetrics department, who agreed to participate in the study. The criteria used to diagnose the infection associated with care were those of the CDC Atlanta and making a thick drop in our context. Operative wound monitoring was performed until the 30th postoperative day. RESULTS: We recorded 200 patients, including 138 operated and 62 nonoperated patients, of which 30 patients developed a care-associated infection at a rate of 15%. The mean age of the patients who presented an infection was 32.52 years ± 13.36 years against 29.36 years ± 10.28 years for the patients who did not present the infection. Seven point five percent of the evacuees had an infection associated with care. The most common types of infections were surgical site infection with 56.60% followed by malaria with 23.30% and urinary tract infection with 20.00%. Escherichia coli and Acinetobacter baumaniiwere the most recovered germs. Isolated organisms were 100% resistant to Amoxicillin, 88.88% were resistant to Ciprofloxacin and 77.77% were resistant to Amoxicillin + Clavulanic acid. The average duration of hospitalization for patients who developed the infection was 14.70 days with extremes of 5 and 46 days. The mortality rate was 1.50%. The average cost of management of patients who developed the infection was 119837 FCFA; the extremes were 17750 and 825750 FCFA and the standard deviation of 174998 CFA francs. CONCLUSION: the infections associated with the care remain frequent in our service and dominated by the infections of the operating site. The isolated organisms were all 100% resistant to Amoxicillin in 88.88% Ciprofloxacin.


LE BUT: de ce travail était d'étudier les infections associées aux soins dans le département de gynécologie ­obstétrique du Centre Hospitalier Universitaire Gabriel Touré (CHU G. Touré). PATIENTES ET MÉTHODES: Il s'agissait d'une étude épidémiologique, descriptive, analytique réalisée dans le département de gynécologie ­obstétrique du CHU G. Touré, allant du 11 Avril 2016 au 29 Août 2016 (4 mois et 18 jours) à collecte prospective des données qui a porté sur les caractéristiques cliniques et biologiques des infections associées aux soins chez les patientes au cours de leur hospitalisation. Etaient incluses dans l'étude toutes les patientes hospitalisées (opérées ou non) dans le service de gynécologie obstétrique, et qui ont accepté de participer à l'étude.Les critères utilisés pour le diagnostic de l'infection associée aux soins étaient ceux du CDC d'Atlanta et la réalisation d'une goutte épaisse dans notre contexte. Une surveillance des plaies opératoires a été faite jusqu'au 30ème jour post-opératoire. RÉSULTATS: Nous avons enregistrés 200 patientes dont 138 opérées et 62 non opérées parmi lesquelles 30 patientes ont développé une infection associée aux soins soit un taux de 15%. L'âge moyen des patientes ayant présenté une infection a été 32,52 ans ±13,36 ans contre 29.36 ans ±10,28 ans pour les patientes n'ayant pas présenté l'infection. Sept virgule cinq pourcent des patientes évacuées ont présenté une infection associée aux soins. Les types d'infections les plus retrouvés étaient l'infection du site opératoire avec 56,60% suivie du paludisme avec 23,30% et l'infection urinaire avec 20,00%. L'Escherichia coli et l'Acinetobacterbaumanii ont été les germes les plus retrouvés. Les germes isolés étaient dans 100% des cas résistants à l'Amoxicilline, dans 88,88% des cas résistants à la Ciprofloxacine et dans 77.77% des cas résistants à l'Amoxicilline +Acide clavulanique. La durée moyenne d'hospitalisation des patientes ayant développé l'infection a été 14,70 jours avec des extrêmes de 5 et 46 jours.Le taux de mortalité a été de 1,50%. Le coût moyen de prise en charge des patientes ayant développé l'infection a été 119837 FCFA ; les extrêmes ont été 17750 et 825750 FCFA et l'écart type de 174998 francs CFA. CONCLUSION: les infections associées aux soins restent fréquentes dans notre service et dominées par les infections du site opératoire. Les germes isolés étaient tous résistants dans 100% cas à l'Amoxicilline dans 88,88% cas à la Ciprofloxacine.

20.
Mali Med ; 35(3): 77-78, 2020.
Artigo em Francês | MEDLINE | ID: mdl-37978736

RESUMO

The trimellar pregnancy on bicicatricial uterus is a rare situation. It can be associated with many maternal-fetal complications. Given these risks, some teams opt for an embryonic reduction. We report a case of spontaneous trimellar pregnancy on bicicatricial uterus. This was a 38 year-old patient, third pregnancy, second birth, 2 alive with a history of 2 caesareans. The evolution of the pregnancy was marked by a urinary tract infection at 34 weeks of gestation. The caesarean section performed at 36 weeks of gestation allowed the birth of 3 newborns, 2 of which were females in 2000 and 1900 grams, and one male weighing 2400 grams. The postpartum was marked by a rapidly resolved eclampsia crisis.


La survenue d'une grossesse triméllaire sur un utérus bicicatriciel est une situation rare. Elle peut être associée à de nombreuses complications materno-fœtales. Compte tenu de ces risques, certaines équipes optent pour une réduction embryonnaire. Nous rapportons un cas de grossesse triméllaire spontanée sur utérus bicicatriciel. Il s'agissait d'une patiente de 38 ans 3è geste, 2è pare avec 2 enfants vivants, ayant un antécédent de 2 césariennes. L'évolution de la grossesse a été marquée par une infection urinaire à 34 SA. La césarienne pratiquée à 36 SA a permit la naissance de 3 nouveaunés dont 2 de sexes féminins de 2000 et 1900g et un de sexe masculin pesant 2400g. Les suites de couches ont été marquées par une crise d'éclampsie rapidement résolue.

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