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1.
Gynecol Obstet Fertil Senol ; 51(2): 117-122, 2023 02.
Artigo em Francês | MEDLINE | ID: mdl-36423880

RESUMO

INTRODUCTION: The diagnosis of endometriosis is often difficult to make, generating a median diagnostic delay ranging from 2 to 10.7years. A study of the care pathway of these patients seems essential in order to evaluate the diagnostic delay of endometriosis in France and the factors related to the diagnostic delay. METHODS: This is a prospective multicenter study, conducted between 2017 and 2019. A questionnaire concerning their care pathway and their feelings about the diagnosis was distributed to all patients consulting for endometriosis. Statistical analyses were performed using the Kruskal-Wallis, Chi2 and Student's t tests. RESULTS: Fifity-seven of the 84 patients (67.8%) who completed the questionnaire were included in the evaluation of diagnostic delays. The total diagnostic delay was 12years (min 0; max 33) and was comparable between all inclusion cities (P=0.68). Regarding the care pathway according to specialties, the diagnosis of endometriosis was made by gynecologists in 81% of patients versus 19% by general practitioners. The time between the onset of symptoms and the first consultation was significantly shorter in favor of the general practitioner (2years versus 4years, P=0.012). 60% of the patients reported that their symptoms were labelled as "normal" by the physicians and 35% of them considered them normal themselves. CONCLUSION: Our study showed that the delay in diagnosis in France was still very long and that the mechanisms of the delay in management were multifactorial. Awareness raising and training of health care providers remains one of the major areas to be optimized.


Assuntos
Endometriose , Feminino , Humanos , Endometriose/diagnóstico , Endometriose/terapia , Diagnóstico Tardio , Estudos Prospectivos , Fatores de Tempo , França
2.
Anaesthesist ; 69(5): 331-351, 2020 05.
Artigo em Alemão | MEDLINE | ID: mdl-32221621

RESUMO

BACKGROUND: Allogeneic blood transfusion is avoidable in many oncological interventions by the use of cell salvage or mechanical autotransfusion (MAT). As irradiation is elaborate and expensive, the safety of leucocyte depletion filters (LDF) for autologous blood from the surgical field might be a more acceptable alternative for the prevention of cancer recurrences. A previous meta-analysis could not identify an increased risk of cancer recurrence. The aim of this review article is to provide an update of a previous meta-analysis from 2012 as well as a safety analysis of cell salvage with LDF due to the improved data situation. MATERIAL AND METHODS: This systematic review included all studies in PubMed, Cochrane, Cochrane Reviews and Web of Science on cell salvage or autotransfusion combined with outcomes, e.g. cancer recurrence, mortality, survival, blood transfusion, length of hospital stay (LOS) after the use of MAT without irradiation and with or without LDF. The grades of recommendations (GRADE) assessment of underlying evidence was applied. RESULTS: A total of seven new observational studies and seven meta-analyses were found that compared unfiltered or filtered cell salvage with autologous predeposition, allogeneic transfusion or without any transfusion. No randomized controlled trials have been completed. A total of 27 observational and cohort studies were included in a meta-analysis. The evidence level was low. The risk of cancer recurrence in recipients of autologous salvaged blood with or without LDF was reduced (odds ratio, OR 0.71, 95% confidence interval, CI 0.58-0.86) as compared to non-transfused subjects, allogeneic or predeposited autologous transfusion. The transfusion rate could not be assessed due to the substantial selection bias and large heterogeneity. Cell salvage does not change mortality and LOS. Leucocyte depletion studies reported a removal rate of cancer cells in the range of 99.6-99.9%. CONCLUSION: Randomized controlled trials on a comparison of MAT and allogeneic blood transfusion as well as LDF and irradiation would be desirable but are not available. From observational trials and more than 6300 subjects and various tumors, cell salvage in cancer surgery with or without LDF appears to be sufficiently safe. The efficacy of leucocyte depletion of autologous salvaged blood is equivalent to irradiation. Unavailability of radiation is not a contraindication for cell salvage use in cancer surgery. By usage of leucocyte depleted salvaged autologous blood, the risks of allogeneic transfusion can be avoided.


Assuntos
Neoplasias/cirurgia , Recuperação de Sangue Operatório/métodos , Transfusão de Sangue , Transfusão de Sangue Autóloga , Humanos , Estudos Observacionais como Assunto
3.
Gait Posture ; 60: 55-60, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29156378

RESUMO

Due to the intensity and repetition of movement, roboticassisted gait training therapy could have a beneficial effect on the recovery and improvement of postural and locomotor functions of the patient. This study sought to highlight the effects of robotic-assisted gait rehabilitation in gait of children with Cerebral Palsy (CP). We analyzed the different strategies before and after this rehabilitation which was used in order to generate forward motion while maintaining balance. Data were collected by a motion analysis system (Vicon® - Oxford Metrics, Oxford, UK). The children were divided into two groups in such a way as to obtain a randomized controlled population: i) a group of fourteen children (Treated Group) underwent 20 sessions of roboticassisted gait training therapy using the driven gait orthosis Lokomat®Pediatric (Hocoma AG, Volketswil, Switzerland) compared to ii) a group of sixteen children without sessions of Lokomat®Pediatric (Control Group). Significant differences are observed for the TG between the preand post-test values of the locomotor parameters and of the kinetic data of the propulsive forces of the Center of Mass (COM) and of the Center of Pressure (COP) dynamic trajectory. This first study, although performed on a limited number of patients, shows the usefulness of this robotic gait rehabilitation mainly in the balance control in gait. Indeed after this rehabilitation, these children improve their gait that is especially characterized by a more appropriate time lag between the time instant of COM-COP trajectory divergence and the time instant when the forward propulsive forces became apparent.


Assuntos
Paralisia Cerebral/reabilitação , Terapia por Exercício/métodos , Transtornos Neurológicos da Marcha/reabilitação , Marcha/fisiologia , Robótica , Caminhada/fisiologia , Análise de Variância , Criança , Feminino , Humanos , Masculino , Aparelhos Ortopédicos
4.
Sci Rep ; 7(1): 13567, 2017 10 19.
Artigo em Inglês | MEDLINE | ID: mdl-29051612

RESUMO

The powerful El Niño event of 2015-2016 - the third most intense since the 1950s - has exerted a large impact on the Earth's natural climate system. The column-averaged CO2 dry-air mole fraction (XCO2) observations from satellites and ground-based networks are analyzed together with in situ observations for the period of September 2014 to October 2016. From the differences between satellite (OCO-2) observations and simulations using an atmospheric chemistry-transport model, we estimate that, relative to the mean annual fluxes for 2014, the most recent El Niño has contributed to an excess CO2 emission from the Earth's surface (land + ocean) to the atmosphere in the range of 2.4 ± 0.2 PgC (1 Pg = 1015 g) over the period of July 2015 to June 2016. The excess CO2 flux is resulted primarily from reduction in vegetation uptake due to drought, and to a lesser degree from increased biomass burning. It is about the half of the CO2 flux anomaly (range: 4.4-6.7 PgC) estimated for the 1997/1998 El Niño. The annual total sink is estimated to be 3.9 ± 0.2 PgC for the assumed fossil fuel emission of 10.1 PgC. The major uncertainty in attribution arise from error in anthropogenic emission trends, satellite data and atmospheric transport.

5.
Eur J Paediatr Neurol ; 21(3): 557-564, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28188024

RESUMO

The robotic-assisted gait training therapy (RAGT), based on intensity and repetition of movement, presents beneficial effects on recovery and improvement of postural and locomotor functions of the patient. This study sought to highlight the effect of this RAGT on the dynamic equilibrium control during walking in children with Cerebral Palsy (CP) by analyzing the different postural strategies of the fullbody (upper/lower body) before and after this RAGT in order to generate forward motion while maintaining balance. Data were collected by a motion analysis system (Vicon® - Oxford Metrics). Thirty children with bilateral spastic CP were evaluated using a full-body marker set which allows assessing both the lower and upper limb kinematics. The children were divided into two groups in such a way as to obtain a randomized controlled population: i) a group of fourteen children (Treated Group) underwent 20 sessions of RAGT using the driven gait orthosis Lokomat®Pediatric (Hocoma) compared to ii) a group of sixteen children without sessions of Lokomat®Pediatric (Control Group) receiving only daily physiotherapy. Significant improvements are observed between the TG pre- and post-test values of i) the kinematic data of the full-body in the sagittal and frontal planes and ii) the Gross Motor Function Measure test (D and E). This study shows the usefulness of this RAGT mainly in the balance control in gait. Indeed, the Treated Group use new dynamic strategies of gait that are especially characterized by a more appropriate control of the upper body associated with an improvement of the lower limbs kinematics.


Assuntos
Paralisia Cerebral/terapia , Terapia por Exercício , Robótica , Caminhada/fisiologia , Fenômenos Biomecânicos , Paralisia Cerebral/fisiopatologia , Criança , Feminino , Marcha/fisiologia , Humanos , Masculino , Equilíbrio Postural/fisiologia
6.
Eur J Pain ; 21(4): 623-634, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27748566

RESUMO

BACKGROUND: Opiates act through opioid receptors to diminish pain. Here, we investigated whether mu (MOR) and delta (DOR) receptor endogenous activity assessed in the whole mouse body or in particular at peripheral receptors on primary nociceptive neurons, control colonic pain. METHODS: We compared global MOR and DOR receptor knockout (KO) mice, mice with a conditional deletion of MOR and DOR in Nav1.8-positive nociceptive primary afferent neurons (cKO), and control floxed mice of both genders for visceral sensitivity. Visceromotor responses to colorectal distension (CRD) and macroscopic colon scores were recorded on naïve mice and mice with acute colitis induced by 3% dextran sodium sulphate (DSS) for 5 days. Transcript expression for opioid genes and cytokines was measured by quantitative RT-PCR. RESULTS: Naïve MOR and DOR global KO mice show increased visceral sensitivity that was not observed in cKO mice. MOR and preproenkephalin (Penk) were the most expressed opioid genes in colon. MOR KO mice had augmented kappa opioid receptor and Tumour-Necrosis-Factor-α and diminished Penk transcript levels while DOR, preprodynorphin and Interleukin-1ß were unchanged. Global MOR KO females had a thicker colon than floxed females. No alteration was detected in DOR mutant animals. A 5-day DSS treatment led to comparable hypersensitivity in the different mouse lines. CONCLUSION: Our results suggest that mu and delta opioid receptor global endogenous activity but not activity at the peripheral Nav1.8 neurons contribute to visceral sensitivity in naïve mice, and that endogenous MOR and DOR tones were insufficient to elicit analgesia after 5-day DSS-induced colitis. SIGNIFICANCE: Knockout mice for mu and delta opioid receptor have augmented colon sensitivity in the CRD assay. It shows endogenous mu and delta opioid analgesia that may be explored as potential targets for alleviating chronic intestinal pain.


Assuntos
Colite/genética , Dor/genética , Receptores Opioides delta/genética , Receptores Opioides mu/genética , Analgésicos Opioides/farmacologia , Animais , Colite/induzido quimicamente , Colite/metabolismo , Sulfato de Dextrana , Dinorfinas/genética , Dinorfinas/metabolismo , Encefalinas/genética , Encefalinas/metabolismo , Feminino , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Masculino , Camundongos , Camundongos Knockout , Dor/metabolismo , Manejo da Dor , Precursores de Proteínas/genética , Precursores de Proteínas/metabolismo , Receptores Opioides delta/metabolismo , Receptores Opioides mu/metabolismo , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
7.
Ann Oncol ; 27(12): 2203-2210, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27753609

RESUMO

BACKGROUND: First-line maintenance strategies are a current matter of debate in the management of mCRC. Their impact on patient's health-related quality of life (HRQOL) has not yet been evaluated. The objective of this study was to assess whether differences in HRQOL during any active maintenance treatment compared with no maintenance treatment exist. PATIENT AND METHODS: Eight hundred and thirty-seven patients were enrolled in the AIO KRK 0207 trial. Four hundred and seventy-two underwent randomization (after 24 weeks of induction treatment) into one of the maintenance arms: FP plus Bev (arm A), Bev alone (arm B), or no active treatment (arm C). HRQOL were assessed every 6 weeks during induction and maintenance treatment independent from treatment stop, delay, or modification, and also continued after progression, using the EORTC QLQ-C30, QLQ-CR29. The mean value of the global quality of life dimension (GHS/QoL) of the EORTC QLQ-C30, calculated as the average of all available time points after randomization was considered as pre-specified main endpoint. Additionally, EORTC QLQ-C30 response scores were analyzed. RESULTS: For HRQOL analysis, 413 patients were eligible (arm A: 136; arm B: 142, arm C: 135). Compliance rate with the HRQOL questionnaires was 95% at time of randomization and remained high during maintenance (98%, 99%, 97% and 97% at week 6, 12, 18 and 24). No significant differences between treatment arms in the mean GHS/QoL scores were observed at any time point. Also, rates of GHS/QoL score deterioration were similar (20.5%; 17.2% and 20.7% of patients), whereas a score improvement occurred in 36.1%; 43.8% and 42.1% (arms A, B and C). CONCLUSION: Continuation of an active maintenance treatment with FP/Bev after induction treatment was neither associated with a detrimental effect on GHS/QoL scores when compared with both, less active treatment with Bev alone or no active treatment. CLINICAL TRIALS NUMBER: NCT00973609 (ClinicalTrials.gov).


Assuntos
Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/epidemiologia , Qualidade de Vida , Adulto , Idoso , Neoplasias Colorretais/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Inquéritos e Questionários
8.
J Gynecol Obstet Biol Reprod (Paris) ; 45(8): 963-971, 2016 Oct.
Artigo em Francês | MEDLINE | ID: mdl-27118679

RESUMO

OBJECTIVES: Every year 3 millions of young women had undergone female genital mutilation. The psychological, identical and sexual consequences, as well as the treatment were described only recently. After a sociodemographic and cultural reminder, we analyze the anatomical, psychological, identital, and functional results of the reconstructive surgery. PATIENTS AND METHODS: We conducted a retrospective monocentric study. Thirty women were included in our series. All the patients operated according to the technique of Pierre Foldes were contacted again, to estimate their motivations for this surgery and study the results on femininity, anatomy, psychology and functionality of this intervention. RESULTS: Twenty-six women were able to be estimated in the long term. Their main motivation was in 77% of the cases the research for a feminine identity. We compared the pre- and postoperative results, as well as different predefined under groups. The results shown a significant improvement between the pre- and the postoperative estimation for each of the items. The patients indicate an improvement: anatomical in 96% of the cases, for identity in 88% of the cases, psychological in 96% of the cases, and for sexuality in 88% of the cases. DISCUSSION AND CONCLUSION: This technique allows an improvement for anatomy and functionality but also for physical image, well-being and feminity.


Assuntos
Imagem Corporal/psicologia , Circuncisão Feminina/psicologia , Clitóris/cirurgia , Feminilidade , Satisfação Pessoal , Procedimentos de Cirurgia Plástica/psicologia , Sexualidade/psicologia , Adolescente , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
9.
Neurophysiol Clin ; 45(3): 215-9, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26381192

RESUMO

Hemiplegia is a more or less complete loss of hemibody voluntary motricity following a brain injury, usually resulting in alterations of the locomotor system with persistent disorders of movement and posture. We were interested in studying the gait pattern called "stiff knee gait" with the main objective to highlight the role of a robotic rehabilitation in improving or modifying/changing the walking pattern in adults with chronic hemiplegic disorders. Data were collected by a motion analysis system (Vicon(®)--Oxford Metrics, Oxford, UK) in order to achieve a Clinical Gait Analysis before and after a robotic gait rehabilitation (Lokomat(®)). Four intensive sessions per weeks during five weeks were performed by ten chronic hemiplegic adults. The results show a significant improvement in locomotor parameters (walking speed, step length, single and double support time) and in the knee kinematics. This first study provides experimental evidence of the importance and usefulness of the robotic rehabilitation as an aid in the rehabilitation of gait pattern in adults with chronic hemiplegia.


Assuntos
Transtornos Neurológicos da Marcha/reabilitação , Hemiplegia/reabilitação , Robótica , Idoso , Fenômenos Biomecânicos , Doença Crônica , Feminino , Hemiplegia/etiologia , Humanos , Joelho , Articulação do Joelho , Masculino , Pessoa de Meia-Idade , Acidente Vascular Cerebral/complicações , Reabilitação do Acidente Vascular Cerebral , Caminhada
10.
Gynecol Obstet Fertil ; 43(6): 424-30, 2015 Jun.
Artigo em Francês | MEDLINE | ID: mdl-25943409

RESUMO

OBJECTIVES: To compare the efficiency of a double cervical ripening (mechanical agent and dinoprostone) to a dinoprostone-only ripening in women with an unfavourable cervix. METHODS: In a retrospective study from January 2008 to October 2013, 96 patients were included with the following criteria: pregnancies over 37 weeks, singleton, vertex presentation, medical indication for induction of labor, no premature rupture of membranes and very unfavourable cervix (Bishop score ≤ 3). Patients were classified into 2 groups: intravaginal dinoprostone for 24h (prostaglandin group, n=38) and double-balloon device for 12h followed by intravaginal dinoprostone for 24h (balloon+prostaglandin group, n=58). RESULTS: There was no difference in vaginal delivery rates between the 2 groups (balloon+prostaglandin group 51.7%, prostaglandin group 50%, P=0.87). The Bishop score after cervical ripening was significantly higher in the balloon+prostaglandin group (4.4 versus 2.4, P<0.0001), but the interval between the induction and the delivery was longer (33.6h versus 24.9h, P=0.0044). There was no significant difference for maternal and neonatal complications. CONCLUSION: A double cervical ripening (with mechanical agent and dinoprostone) allows the Bishop score to be improved without increasing the rate of vaginal delivery, for patients with a Bishop score ≤ 3.


Assuntos
Maturidade Cervical , Trabalho de Parto Induzido/instrumentação , Trabalho de Parto Induzido/métodos , Administração Intravaginal , Adulto , Catéteres , Dinoprostona/uso terapêutico , Feminino , Humanos , Ocitócicos/uso terapêutico , Gravidez , Estudos Retrospectivos
11.
Reprod Biol ; 15(1): 1-8, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25726371

RESUMO

The accessory gland weight, testicular and epididymal morphometry and sperm production were analyzed in four groups of rats housed at 20 or 34°C: (1) control rats (CR) kept at 20°C from birth to day 90; (2) adult heat-acclimated rats (AHA) kept at 20°C from birth to day 45 followed by 34°C to day 90; (3) neonatal heat-acclimated rats (NHA) kept at 34°C from birth to day 90 and (4) de-acclimated rats (DA) kept at 34°C from birth to day 45 followed by 20°C to day 90. In NHA and DA rats, accessory gland weight was higher than in controls. Despite the lack of differences in testicular and epididymal morphometry, curvilinear velocity of spermatozoa was lower in the NHA group compared to controls. Areas of seminiferous tubules were lower in the DA than in CR and NHA groups, however, sperm concentration and motility were not affected by the treatment in this group. In AHA rats, epithelium of approximately 20% of seminiferous tubules was degenerated and Sertoli cell number was lower in the remaining tubules. In contrast to sperm motility, epididymal duct area, area of the duct occupied by spermatozoa and cauda epididymis sperm concentration were lower in AHA rats than in the other groups. In conclusion, neonatal heat acclimation did not affect the testicular morphometry and epididymal sperm concentration, suggesting adjustment to high ambient temperature. On the contrary, adult heat acclimation of rats affected the examined parameters, leading to decreased sperm concentration.


Assuntos
Aclimatação/fisiologia , Envelhecimento , Temperatura Alta , Espermatogênese/fisiologia , Testículo/anatomia & histologia , Testículo/fisiologia , Animais , Animais Recém-Nascidos , Masculino , Ratos
12.
Cryobiology ; 70(2): 184-9, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25725469

RESUMO

The goal of this study was to develop a simple glucose-methanol extender for cryopreservation of Siberian sturgeon (Acipenser baerii) semen. Semen quality was assessed by determining post-thaw sperm motility and fertilizing ability at hatching stage. We tested the effect of glucose concentration (0, 0.10, 0.15, 0.20 and 0.30 M) in a methanol extender on post-thaw sperm motility. Sperm motility parameters and fertilizing ability of semen cryopreserved in 0.1 M glucose in 15% methanol (GM) were compared to previously described Tris-sucrose-KCl in 10% - methanol extender (TSKM). Additionally, sperm motility and fertilizing ability in relation to 30 min equilibration in GM extender before cryopreservation and 30 min of post-thaw storage were determined. The beneficial effect of the glucose for semen cryopreservation was related to its concentration with a quite narrow optimum of 0.1 to -0.15 M. The fertilization rates of frozen/thawed sperm were similar for both (TSKM and GM) tested extenders. The sperm motility and fertilization rate were not affected either by 30 min equilibration in GM extender or by 30 min of post-thaw storage. Our work indicates that the use a simple extender consisting of 0.1M glucose in 15% methanol can be an alternative cryopreservation method to those previously described for sturgeons. The use of an equilibration period and the possibility of post-thaw semen storage can improve organization of hatchery work and help with logistics of large-scale hatchery operations.


Assuntos
Criopreservação/métodos , Crioprotetores/farmacologia , Glucose/farmacologia , Metanol/farmacologia , Preservação do Sêmen/métodos , Motilidade dos Espermatozoides/fisiologia , Animais , Fertilização/fisiologia , Peixes , Congelamento/efeitos adversos , Masculino , Sêmen/fisiologia , Análise do Sêmen , Motilidade dos Espermatozoides/efeitos dos fármacos , Espermatozoides/efeitos dos fármacos
13.
Theriogenology ; 83(2): 253-6, 2015 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-25308053

RESUMO

The aim of this study was to test the influence of postthaw storage time on sperm motility parameters of brook trout (n = 9). Furthermore, we examined the effect of sperm-to-egg ratios of 300,000:1 and 600,000:1 on fertility of postthaw, cryopreserved, brook trout sperm. The application of a cryopreservation procedure produced very high postthaw sperm motility (56.8 ± 4.0%). The cryopreserved sperm of brook trout could be stored up to 60 minutes without loss of the percentage of sperm motility (52.0 ± 9.0%). The fertilization capacity of brook trout postthaw sperm was comparable with the fertilization rate of fresh semen at a sperm-to-egg ratio as low as 300,000:1 (42.4 ± 14.0% and 36.5 ± 11.0% for eyed and hatched stages, respectively). The possibility of postthaw semen storage for the prolonged time and the obtainment of high fertilization rate at low sperm-to-egg ratio can lead to the significant improvement of brook trout semen cryopreservation procedure.


Assuntos
Criopreservação/veterinária , Fertilidade , Preservação do Sêmen/veterinária , Espermatozoides/fisiologia , Truta , Animais , Contagem de Células , Feminino , Temperatura Alta , Masculino , Óvulo , Preservação do Sêmen/métodos , Motilidade dos Espermatozoides , Interações Espermatozoide-Óvulo , Fatores de Tempo
14.
J Fish Biol ; 85(2): 446-55, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24961489

RESUMO

Sperm morphology and regulation of sperm motility of lake minnow Eupallasella percnurus, an endangered cyprinid, were investigated. Milt characteristics from two isolated populations of E. percnurus were compared to characterize the interpopulation diversity. Electron microscopic studies revealed that E. percnurus spermatozoa comprise simple, uniflagellate, anacrosomal aquasperm with species-specific features as an eccentrically located implantation of nuclear fossa and eccentric insertion of flagellum. Sperm motility was significantly inhibited by relatively low ion concentrations (150, 150 and 8 mM for NaCl, KCl and CaCl2 , respectively). Sperm maintained a high motility rate over a wide pH range (5.5-10.5), which may reflect adaptation to a highly variable environment. The two E. percnurus populations were markedly different in milt volume, sperm concentration, seminal plasma pH, sperm motility and beat cross frequency, which may result from genetic differences and environmental conditions.


Assuntos
Cyprinidae/fisiologia , Sêmen/química , Motilidade dos Espermatozoides/fisiologia , Espermatozoides/fisiologia , Animais , Concentração de Íons de Hidrogênio , Lagos , Masculino , Microscopia Eletrônica , Espermatozoides/ultraestrutura
15.
Gait Posture ; 40(1): 43-7, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24656683

RESUMO

This study sought to highlight the balance control process during gait in children with cerebral palsy (CP) by analyzing the different strategies used in order to generate forward motion while maintaining balance. Data were collected using a motion analysis system in order to provide a clinical gait analysis for 16 children with CP and 16 children with typical development. Significant differences between the two groups are observed in terms of kinetic data of the propulsive forces of the center of mass (COM) and of the center of pressure (COP) dynamic trajectory and for locomotor parameters. The imbalance generated by divergent trajectories of COM and COP produce the propulsive forces responsible for human gait initiation. Moreover, we observe in children with CP an "en bloc" postural strategy resulting in increasing divergence between trajectories of COM-COP. This particular strategy of the children with CP is characterized by a greater time duration between the moment of COM-COP trajectory divergence and the moment where the forward propulsive forces became apparent.


Assuntos
Paralisia Cerebral/complicações , Paralisia Cerebral/fisiopatologia , Marcha/fisiologia , Transtornos dos Movimentos/fisiopatologia , Equilíbrio Postural/fisiologia , Transtornos de Sensação/fisiopatologia , Transtornos de Sensação/reabilitação , Fenômenos Biomecânicos , Paralisia Cerebral/reabilitação , Criança , Feminino , Humanos , Cinésica , Locomoção/fisiologia , Masculino , Movimento/fisiologia , Transtornos dos Movimentos/etiologia , Transtornos dos Movimentos/reabilitação , Pressão , Transtornos de Sensação/etiologia
16.
Br Poult Sci ; 54(5): 661-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24070316

RESUMO

1. The effect of dialysis on the proacrosin/acrosin system and motility of turkey spermatozoa were examined after 24 and 48 h of liquid storage at 4°C. 2. Fifteen pools of semen diluted in extender were dialysed against Clemson Turkey Semen Diluent (dialysed semen) or stored in aerobic conditions (undialysed semen). Semen quality was assessed by measuring spermatozoa motility, amidase activity of spermatozoa suspension, spermatozoa extract and seminal plasma and anti-trypsin activity of seminal plasma. 3. Extracted amidase activity of dialysed semen was lower than undialysed by 28%. Higher values for speed parameters of spermatozoa were found in dialysed semen in comparison to undialysed, for example, 81.6 µm/s versus 75.0 µm/s for straight-line velocity (VSL), 114.7 µm/s versus 110.3 µm/s for curvilinear velocity (VCL) and 86.6 µm/s versus 79.8 µm/s for average path velocity (VAP). 4. It was concluded that dialysis caused lower amidase activity of spermatozoa and increased speed parameters of progressively motile turkey spermatozoa during storage. Lower extracted amidase activity of dialysed semen reflected better membrane integrity of dialysed semen and suggests that the proacrosin/acrosin system of dialysed spermatozoa is less susceptible to activation compared to undialysed semen.


Assuntos
Acrosina/fisiologia , Amidoidrolases/fisiologia , Diálise/veterinária , Precursores Enzimáticos/fisiologia , Preservação do Sêmen/veterinária , Espermatozoides/fisiologia , Perus/fisiologia , Animais , Diálise/métodos , Masculino , Preservação do Sêmen/métodos , Motilidade dos Espermatozoides/fisiologia , Espermatozoides/enzimologia , Gravação em Vídeo
17.
Theriogenology ; 80(7): 758-65, 2013 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-23932168

RESUMO

In this study, we examined different computer-assisted sperm analysis (CASA) systems (CRISMAS, Hobson Sperm Tracker, and Image J CASA) on the exact same video recordings to evaluate the differences in sperm motility parameters related to the specific CASA used. To cover a wide range of sperm motility parameters, we chose 12-second video recordings at 25 and 50 Hz frame rates after sperm motility activation using three taxonomically distinct fish species (sterlet: Acipenser ruthenus L.; common carp: Cyprinus carpio L.; and rainbow trout: Oncorhynchus mykiss Walbaum) that are characterized by essential differences in sperm behavior during motility. Systematically higher values of velocity and beat cross frequency (BCF) were observed in video recordings obtained at 50 Hz frame frequency compared with 25 Hz for all three systems. Motility parameters were affected by the CASA and species used for analyses. Image J and CRISMAS calculated higher curvilinear velocity (VCL) values for rainbow trout and common carp at 25 Hz frequency compared with the Hobson Sperm Tracker, whereas at 50 Hz, a significant difference was observed only for rainbow trout sperm recordings. No significant difference was observed between the CASA systems for sterlet sperm motility at 25 and 50 Hz. Additional analysis of 1-second segments taken at three time points (1, 6, and 12 seconds of the recording) revealed a dramatic decrease in common carp and rainbow trout sperm speed. The motility parameters of sterlet spermatozoa did not change significantly during the 12-second motility period and should be considered as a suitable model for longer motility analyses. Our results indicated that the CASA used can affect motility results even when the same motility recordings are used. These results could be critically altered by the recording quality, time of analysis, and frame rate of camera, and could result in erroneous conclusions.


Assuntos
Peixes , Processamento de Imagem Assistida por Computador/instrumentação , Análise do Sêmen/veterinária , Motilidade dos Espermatozoides , Animais , Masculino , Análise do Sêmen/métodos
18.
Ann Oncol ; 24(6): 1580-7, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23463625

RESUMO

BACKGROUND: This randomized phase II trial investigated the efficacy and safety of capecitabine/oxaliplatin (CapOx) plus bevacizumab and dose-modified capecitabine/irinotecan (mCapIri) plus bevacizumab as first-line therapy in patients with metastatic colorectal cancer (mCRC). PATIENTS AND METHODS: Patients received bevacizumab 7.5 mg/kg with oxaliplatin 130 mg/m(2)/day 1 plus capecitabine 1000 mg/m(2) bid/days 1-14 or with irinotecan 200 mg/m(2)/day 1 plus capecitabine 800 mg/m(2) bid/days 1-14 both every 21 days. The primary end point was 6 months progression-free survival (PFS). RESULTS: A total of 255 patients were enrolled. The intent-to-treat population comprised 247 patients (CapOx-bevacizumab: n = 127; mCapIri-bevacizumab: n = 120). The six-month PFS rates were 76% (95% CI, 69%-84%) and 84% (95% CI, 77%-90%). Median PFS and OS were 10.4 months (95% CI, 9.0-12.0) and 24.4 months (95% CI, 19.3-30.7) with CapOx-bevacizumab, and 12.1 months (95% CI, 10.8-13.2) and 25.5 months (95% CI, 21.0-31.0) with mCapIri-bevacizumab. Grade 3/4 diarrhea as predominant toxic effect occurred in 22% of patients with CapOx-bevacizumab and in 16% with mCapIri-bevacizumab. CONCLUSIONS: Both, CapOx-bevacizumab and mCapIri-bevacizumab, show promising activity and an excellent toxic effect profile. Efficacy is in the range of other bevacizumab-containing combination regimen although lower doses of irinotecan and capecitabine were selected for mCapIri.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais Humanizados/administração & dosagem , Anticorpos Monoclonais Humanizados/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Bevacizumab , Camptotecina/administração & dosagem , Camptotecina/efeitos adversos , Camptotecina/análogos & derivados , Capecitabina , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Desoxicitidina/análogos & derivados , Diarreia/induzido quimicamente , Diarreia/diagnóstico , Intervalo Livre de Doença , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/efeitos adversos , Fluoruracila/análogos & derivados , Humanos , Irinotecano , Masculino , Pessoa de Meia-Idade , Compostos Organoplatínicos/administração & dosagem , Compostos Organoplatínicos/efeitos adversos , Oxaliplatina , Resultado do Tratamento
19.
Ann Phys Rehabil Med ; 55(9-10): 590-600, 2012 Dec.
Artigo em Inglês, Francês | MEDLINE | ID: mdl-23165246

RESUMO

OBJECTIVE: The objective of the present study was to highlight the role of head stabilization and to analyze multisegment head-trunk coordination during gait in children with cerebral palsy (CP). MATERIAL AND METHOD: Postural control was measured and compared in a group of 16 CP subjects and a control group of 16 healthy subjects. The subjects had to walk along an out-and-back course at their freely chosen gait speed. For each gait cycle, motion analysis techniques were used to calculate the amplitude of the head angle (relative to the trunk) in the sagittal and frontal planes. RESULTS: Kinematic analysis revealed a number of significant intergroup differences, with a more pronounced variation in the head angle (relative to the trunk) in the CP group than in the control group. There were no significant intergroup differences in terms of the angular amplitude of the head in the sagittal plane. CONCLUSION: The greater variability of the head angle in the frontal plane in the CP subjects might reflect the presence of greater head roll as a compensatory strategy. These finding suggest that the clinical evaluation of posture during gait in children with CP should be reconsidered.


Assuntos
Paralisia Cerebral/fisiopatologia , Marcha/fisiologia , Cabeça/fisiopatologia , Postura/fisiologia , Fenômenos Biomecânicos , Estudos de Casos e Controles , Criança , Feminino , Humanos , Locomoção/fisiologia , Masculino , Tronco/fisiopatologia
20.
Theriogenology ; 78(5): 1065-77, 2012 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-22704390

RESUMO

This study was designed to identify the effect of liquid storage at 4 °C for 48 h and cryopreservation on the proacrosin/acrosin system of turkey spermatozoa. Anti-acrosin I antibodies were produced and used to demonstrate Western blot analysis profile of the proacrosin/acrosin system of sperm and seminal plasma and possible changes in the proacrosin/acrosin system of turkey sperm stored for 2.5, 24, and 48 h or cryopreserved. At the same time acrosin-like activity was examined by the measurement of amidase activity of sperm extracts, sperm suspension, and seminal plasma of turkey semen. A computer-assisted sperm analysis system was used to monitor the sperm motility characteristics of turkey sperm stored for 48 h or cryopreserved. Different profiles of the sperm proacrosin/acrosin system were observed regarding the presence or absence of inhibitors (p-nitrophenyl-p'-guanidine benzoate [NPGB] and Kazal family inhibitor) during the extraction process. When NPGB was present three main bands were observed with the molecular weight ranging from 66 to 35 kDa. Bands corresponding to acrosin I and II were not observed. In sperm extract without NPGB, three or four bands were observed with the molecular weight ranging from 41 to 30 kDa. The bands corresponding to acrosin I and II were observed. During liquid storage a decrease in sperm motility and an increase in sperm-extracted amidase activity were observed. After 24 and 48 h of storage, extracted amidase activity was higher than at 2.5 h by 24% and 31%, respectively. However, no changes in the Western blot analysis profiles of sperm extract and seminal plasma were visible during liquid storage. After cryopreservation a decrease in sperm motility and all sperm motility parameters were observed. In contrast to liquid storage, cryopreservation did not increase extracted amidase activity. However, changes in Western blot analysis profiles were visible in sperm extract and seminal plasma after cryopreservation. After freezing-thawing, additional bands appeared in sperm extract and seminal plasma. These bands were of different molecular weight regarding the presence or absence of NPGB. These data suggest that the mechanism of damage to the proacrosin/acrosin system is different for liquid storage and cryopreservation. Liquid storage seems to increase in the susceptibility of the proacrosin/acrosin system to be activated during extraction. Kazal inhibitors of turkey seminal plasma are involved in the control of proacrosin activation. The disturbances of the proacrosin/acrosin system of turkey spermatozoa can be related to a disturbance in the induction of the acrosome reaction. Our results may be important for a better understanding of the proacrosin/acrosin system of turkey spermatozoa and disturbance to this system during liquid storage and cryopreservation.


Assuntos
Acrosina/metabolismo , Criopreservação/veterinária , Precursores Enzimáticos/metabolismo , Preservação do Sêmen/veterinária , Sêmen/fisiologia , Perus/fisiologia , Amidoidrolases/metabolismo , Animais , Anticorpos , Western Blotting , Criopreservação/métodos , Processamento de Imagem Assistida por Computador , Masculino , Sêmen/enzimologia , Preservação do Sêmen/métodos , Motilidade dos Espermatozoides , Espermatozoides/metabolismo
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