18 research outputs found
Leucograma, eritograma, hemoglobina, hematócrito e tempo de coagulação após o uso oral e intraperitoneal de Heterothalamus brunioides, em ratos Wistar
In the present work, authors wished to observe possible blood alterations produced by oral route (98 mg/kg weight) and intraperitonial route (40 mg/kg and 98/kg weight) proIonged administrations of Heterothalamus brunioides, Less in Wistar rats. Results analysis proved that, in the estudied paramethers, was no significant alterations.No presente trabalho pretendeu-se observar as possĂveis alteraçÔes sanguĂneas produzidas pela administração via oral (98mg / kg) e via intraperitonial (40mg / kg) de Heterothalamus brunioides Less, durante intervalos de tempo, em ratos Wistar. A anĂĄlise dos resultados revela que nĂŁo houve alteraçÔes siginificativas nos parĂąmetros estudados
Produção in vitro de embriÔes bovinos em tubos sem controle da atmosfera gasosa
The increase in OPU utilization requires an alternative to start the early phases of PIV without a controlled atmosphere. The development of a practical and simple way to transport/mature/fertilize might enhance the efficiency of the laboratory and consequently decrease its production costs. The aim of this study was to develop a method for cumulus oocytes complexes (CCO) maturation and fertilization in polypropylene tubes without atmosphere control kept in water bath. The in vitro maturation performed with controlled atmosphere was in TCM-199 modified (control group). The water bath treatments in tubes the TCM-199 had a addition of 25 mM of N-2-hidroxyethylpiperazine-N'-2-ethanosulfonic acid (HEPES). The CCO in vitro fertilization was performed in Talp-Fert medium with 10mM a 28.7 mM of HEPES, under mineral oil in tubes kept in water bath at 39°C, during 10 to 18 hours. Zygotes were cultured 4 well dishes, in bag system, with SOFaa medium with 5,00% estrus cow serum, under mineral oil, in incubator with 5,00%CO2, 5,00%O2 and 90,00%N2, at 39°C for 9 days. The results showed that CCO can be matured for 24 hours in tubes kept in water bath and also fertilized during 10 hours in tubes with Talp-Fert medium added of 25mM HEPES. The cleavage, D7 and D9 blastocysts rates in tubes without controlled atmosphere were similar (P>;0.05) to those in the incubator procedures. However, the fertilization in Talp-Fert medium added of 10mM a 28.7 mM of HEPES in tubes kept in water bath for 18 hours had a detrimental effect on the embryonic development.Com a maior utilização da OPU existe a necessidade de encontrar alternativas para iniciar as primeiras fases da PIV sem controle da atmosfera. O desenvolvimento de um mĂ©todo prĂĄtico e simples de transporte/maturação/fecundação permitiria maior eficiĂȘncia do laboratĂłrio e diminuição dos custos de produção. O objetivo deste estudo foi desenvolver um mĂ©todo de maturação e fecundação para complexos cumulus oĂłcitos (CCO) em tubos de polipropileno sem gaseificação, mantidos em banho-maria. A maturação in vitro em estufa foi conduzida em TCM-199 modificado (controle) enquanto que para os tratamentos em banho-maria, em tubos, o meio foi acrescido de 25mM de N-2-hidroxietilpiperazina-N'-2-ĂĄcido etanosulfĂŽnico (HEPES). Na fecundação in vitro dos oĂłcitos em tubos, os CCO foram mantidos em banho-maria a 39°C em Talp-Fert, acrescido de HEPES em concentraçÔes entre 10mM a 28,7 mM por 10 a 18 horas, sob Ăłleo mineral. O cultivo realizou-se em placas em bolsas gaseificadas com meio SOFaaci com soro de vaca em estro (SVE), sob Ăłleo mineral, em estufa com 5,00%CO2 , 5,00%O2 e 90,00% de N2 a 39°C, por 9 dias. Verificou-se que CCO maturados por 24h em tubos nĂŁo gaseificados, mantidos em banho-maria tambĂ©m podem ser fecundados em meio Talp-Fert com 25 mM de HEPES, em tubos nĂŁo gaseificados, mantidos em banho-maria durante 10 horas. As taxas de clivagem, blastocistos em D7 e D9 em tubos nĂŁo gaseificados foram semelhantes (P>;0,05) aos procedimentos em estufa. A fecundação em Talp-Fert com 10 mM a 28,7 mM de HEPES em tubos mantidos em banho-maria prejudica o desenvolvimento embrionĂĄrio quando conduzida por 18 horas
Duração da gestação em relação à idade de éguas da raça Puro Sangue de Corrida, aos pesos do potro e da placenta, e ao horårio do parto
This study was performed with the aim of determining physiologic parameters regarding post foaling behavior in the mare, puerperium and foal. Three hundred and ninety deliveries of Thoroughbred mares were observed between July, 1983 and November, 1992. Older mares produced heavier foals and placentae. The mareâs age had no influence on gestational length, and this parameter was not related to the moment of conception or to the foalâs weight. Older mares, with a healthy endometrium, eliminated heavier placentae compared to younger, healthy mares. Most of deliveries (87.54%) occurred at night (between 6:00 p.m. and 7:00 a.m.), when environmental activities were at a minimum.Este estudo foi realizado com o propĂłsito de determinar parĂąmetros fisiolĂłgicos relativos ao pĂłs-parto e puerpĂ©rio na Ă©gua e potro. De01/07/1983 a 25/11/1992 foram observados 390 partos em Ă©guas da raça Puro Sangue de Corrida. Ăguas mais velhas produziram potros e placentas mais pesados; a idade materna nĂŁo influenciou na duração da gestação e esta Ășltima nĂŁo esteve relacionada com o perĂodo de concepção ou com o peso do produto. Ăguas mais velhas, com endomĂ©trio sadio, apresentaram placentas mais pesadas que Ă©guas jovens, tambĂ©m saudĂĄveis. 87,54% dos partos ocorreram Ă noite (entre 18 horas e 7 horas) relacionando-se comperĂodos de tranqĂŒilidade ambiental
Fertilidade pĂłs-parto em Ă©guas Puro-Sangue de Corrida
Observaram-se 549 Ă©guas da raça Puro-Sangue de Corrida paridas durante o segundo semestre, no perĂodo de 1Âș de julho de 1983 a 31 de dezembro de 1994, com a finalidade de se analisar o Ăndice de concepção pĂłs-parto, a duração e a fertilidade dos cios pĂłs-parto, os percentuais de produtos nascidos no ano seguinte e relacionĂĄ-los com a idade das Ă©guas. Verificou-se que Ă©guas com idade superior a 13 anos apresentam uma capacidade significativamente menor de conceber e levar a gestação a termo do que Ă©guas mais novas. O 1Âș cio pĂłs-parto ocorre em mĂ©dia aos 12,3 (± 10,9) dias pĂłs-parto e, quando apresenta uma duração de 8 a 14 dias, Ă© significativamente mais fĂ©rtil do que quando tem uma duração fora destes limites. A taxa de prenhez observada no 2Âș cio pĂłs-parto foi significativamente superior Ă do 1Âș cio pĂłs-parto
Fertilidade pĂłs-parto em Ă©guas Puro-Sangue de Corrida
Observaram-se 549 Ă©guas da raça Puro-Sangue de Corrida paridas durante o segundo semestre, no perĂodo de 1Âș de julho de 1983 a 31 de dezembro de 1994, com a finalidade de se analisar o Ăndice de concepção pĂłs-parto, a duração e a fertilidade dos cios pĂłs-parto, os percentuais de produtos nascidos no ano seguinte e relacionĂĄ-los com a idade das Ă©guas. Verificou-se que Ă©guas com idade superior a 13 anos apresentam uma capacidade significativamente menor de conceber e levar a gestação a termo do que Ă©guas mais novas. O 1Âș cio pĂłs-parto ocorre em mĂ©dia aos 12,3 (± 10,9) dias pĂłs-parto e, quando apresenta uma duração de 8 a 14 dias, Ă© significativamente mais fĂ©rtil do que quando tem uma duração fora destes limites. A taxa de prenhez observada no 2Âș cio pĂłs-parto foi significativamente superior Ă do 1Âș cio pĂłs-parto.Five hundred and forty nine foaling thoroughbred mares, were observed to analyze the conception rate, duration and fertility of the foal heat, foaling rate in the forthcoming year and its relation with the age of the mare during the 2nd semester comprised between July, 1983 and December, 1994. Conception and foaling rates decreased after the age of the 13th. The first estrus appeared 12.3 (± 10.9) days post-partum and, when its duration was between 8 and 14 days, the first estrus was significantly more fertile than out of these limits. The conception rate of the second post-partum estrus was significantly higher than the first
Canagliflozin and renal outcomes in type 2 diabetes and nephropathy
BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodiumâglucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with reninâangiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years
Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTICâHF: baseline characteristics and comparison with contemporary clinical trials
Aims:
The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTICâHF) trial. Here we describe the baseline characteristics of participants in GALACTICâHF and how these compare with other contemporary trials.
Methods and Results:
Adults with established HFrEF, New York Heart Association functional class (NYHA)ââ„âII, EF â€35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokineticâguided dosing: 25, 37.5 or 50âmg bid). 8256 patients [male (79%), nonâwhite (22%), mean age 65âyears] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NTâproBNP 1971âpg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTICâHF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressureâ<â100âmmHg (n = 1127), estimated glomerular filtration rate <â30âmL/min/1.73 m2 (n = 528), and treated with sacubitrilâvalsartan at baseline (n = 1594).
Conclusions:
GALACTICâHF enrolled a wellâtreated, highârisk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation