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51.
A Chaveiro C Cerqueira J Silva J Franco F Moreira da Silva 《Majallah-i ta?qīqāt-i dāmpizishkī-i īrān》2015,16(2):188-193
In the present study, the fertilizing potential of semen recovered from slaughtered bulls epididymis was evaluated after cryopreservation, by conventional techniques and flow cytometry methods. The cauda epididymal was dissected and sperm were recovered and evaluated for volume, sperm concentration, and membrane and acrosome integrity using a flow cytometer. Sperm fertility potential was tested by in vitro fertilization (IVF). For each bull, three trials of IVF were performed. Before freezing, on average, the sperm concentration was 216 ± 27.5 × 106 sperm/ml. Sperm viability averaged 86.5 ± 4%. The mean percentage of sperm with intact plasma membrane and acrosome before and after cryopreservation was 90.7 ± 2.9% and 90.8 ± 1.9% (P≥0.05), respectively. The fertilization rate using frozen/thawed epididymal semen averaged 64.1 ± 3.9% fertilization with no significant differences between bulls (P>0.05). For the bull considered as control, the fertilization rate was 72.2 ± 4.5%, differing significantly (P>0.05) from the frozen/thawed epididymal semen’s fertilization rate. In conclusion, it is possible to use in vitro techniques with cryopreserved spermatozoa obtained from bull’s epididymis using a controlled rate freezing method with a predetermined freezing curve, and with assessment of sperm’s viability by conventional techniques and flow cytometry methods, together with the fertilizing ability of cryopreserved epididymal spermatozoa.Key Words: Bovine, Cryopreservation, Epididymis, IVF, Semen 相似文献
52.
Insulin receptors on leukemia and lymphoma cells 总被引:1,自引:0,他引:1
Tumor cells obtained from leukemia and lymphoma patients were investigated for specific insulin receptors. Using radioactive 125I- labeled insulin, specific insulin binding sites were demonstrated on most acute lymphocytic leukemia (ALL) and acute myelocytic leukemia (AML) cells, including acute promyelocytic leukemia (APL), chronic myelocytic leukemia (CML), and acute monocytic leukemia (AMoL) cells. Insulin receptors were not found on chronic lymphocytic leukemia (CLL) and malignant lymphoma (ML) cells. Specific insulin binding sites were also found on monocytes and thymocytes after treatment with phytohemagglutinin (PHA-P), but not on inactivated tonsil cells, peripheral blood lymphocytes, or thymocytes. There was no inverse correlation between the content of insulin receptors and the basal level of circulating insulin. These data suggest that the insulin receptor may be a new marker of acute leukemia and chronic myelocytic leukemia. 相似文献
53.
Henrique de Alencar Gomes Bruno de Souza Moreira Rosana Ferreira Sampaio Sheyla Rossana Cavalcanti Furtado Sebastião Cronemberger Roberto de Alencar Gomes Renata Noce Kirkwood 《Revista brasileira de fisioterapia (S?o Carlos (S?o Paulo, Brazil))》2018,22(5):376-382
Objective
This study investigated the influence of early to moderate primary open angle glaucoma on gait, functional mobility and fall risk.Methods
Thirty-three participants in the early and moderate stages of primary open angle glaucoma and 34 asymptomatic controls participated in the study. Spatiotemporal gait data were obtained with the GAITRite system and included: velocity, cadence, step length, base of support, swing, stance and double support times. Functional measures included the Timed Up and Go test, the Five-Repetition Sit-To-Stand test and the Dynamic Gait Index. Fall risk was measured using the Physiological Profile Assessment.Results
The variables contrast sensitivity, proprioception and the Timed Up and Go and Dynamic Gait Index tests were significantly different between groups. In addition, the glaucoma group presented significantly higher risk of falling compared to the control group. Individuals in the early and moderate stages of primary open glaucoma presented mobility and sensory deficits that increase the risk of falling.Conclusions
The results of this study suggest that adding the Timed Up and Go and Dynamic Gait Index tests to routine physical therapy assessment of individuals with early glaucoma could be useful. Rehabilitation programs should focus on maintaining and/or improving mobility and balance, and prevention of falls in this population. 相似文献54.
Food frequency questionnaire as an indicator of the serum composition of essential n‐3 and n‐6 polyunsaturated fatty acids in early pregnancy,according to body mass index 下载免费PDF全文
55.
Association between overweight and characteristics of young adult
students: support for nursing care
Jênifa Cavalcante dos Santos Santiago Thereza Maria Magalh?es Moreira Raquel Sampaio Florêncio 《Revista latino-americana de enfermagem》2015,23(2):250-258
OBJECTIVE:
to verify associations between overweight and the characteristics of young adult students to support nursing care.METHOD:
case-control study conducted with young adults from public schools. The sample was composed of 441 participants (147 cases and 294 controls, with and without excess weight, respectively). Sociodemographic and clinical characteristics were collected together with exposure factors and anthropometrics. Multiple logistic regression was used. The study received Institutional Review Board approval.RESULTS:
statistically significant association with overweight: non-Caucasian, having a partner; weight gain during adolescence, mother''s excess weight, the use of obesogenic medication, augmented diastolic blood pressure, of abdominal circumference and waist/hip ratio. In addition to these, schooling and weight gain during childhood were also included in the multivariate analysis. After adjustment, the final model included: having a partner, weight gain during adolescence, augmented diastolic blood pressure and abdominal circumference.CONCLUSION:
the analysis of predictor variables for excess weight among young adult students supports nurses in planning and developing educational practices aimed to prevent this clinical condition, which is a risk factor for other chronic comorbidities, such as cardiovascular diseases. 相似文献56.
57.
Claudia Eliza Patrocinio de Oliveira Osvaldo Costa Moreira Zoila Marilú Carrión-Yagual Carlos Medina-Pérez José Antonio de Paz 《Archives of physical medicine and rehabilitation》2018,99(5):819-825
Objective
To compare the effects of classic progressive resistance training (PRT) versus eccentric strength-enhanced training (EST) on the performance of functional tests and different strength manifestations in the lower limb of people with multiple sclerosis (PwMS).Design
Experimental trial.Setting
Strength training program.Participants
PwMS (N=52; 19 men, 33 women) belonging to MS associations from the Castilla y León, Spain.Interventions
Participants were assigned to 1 of 2 groups: a control group that performed PRT or an experimental group that performed EST. In both groups, the knee extensor muscles were trained for 12 weeks.Main Outcome Measures
Before and after 12 weeks of training, maximal voluntary isometric contraction and 1 repetition maximum (1RM) of the knee extensors were evaluated, as were the Chair Stand Test (CST) and Timed 8-Foot Up and Go (TUG) functional tests.Results
No differences were found between the groups in the initial values for different tests. Intragroup comparisons found significant differences in CST (F=69.4; P<.001), TUG (F=40.0; P<.001), and 1RM (F=57.8; P<.001). For intergroup comparisons, EST presented better results than PRT in the CST (EST, 4.7%±2.8%; PRT, 1.9%±2.8%; F=13.1; P=.001) and TUG (EST, ?2.9±4.7; PRT, ?.41±5.6; F=5.6; P=.022).Conclusions
In PwMS, EST leads to improvements in 1RM, TUG, and CST that are similar to those of PRT. However, for patients who participated in this study, the EST seems to promote a better transfer of strength adaptations to the functional tests, which are closer to daily-living activities. 相似文献58.
59.
60.
da Luz Moreira A Vogel JD Kalady MF Hammel J Fazio VW 《Diseases of the colon and rectum》2008,51(5):508-513
Purpose This study was designed to evaluate the yield and cost of fever evaluations in average-risk inpatients after elective colorectal
surgery.
Methods A 12-month, retrospective study was performed on patients who developed a postoperative fever ≥ 38°C after elective colorectal
surgery. A positive fever evaluation was defined as a blood culture, urine culture, chest x-ray, or abdominal CT result that
led to a change in patient management. Logistic regression, Fisher’s exact test, and chi-squared test were used; odds ratios
were calculated.
Results Of 133 patients, 26 percent had a positive evaluation. Blood culture, urine culture, chest x-ray, and CT were positive in
3, 8, 7, and 46 percent, respectively. Risk factors for a positive fever evaluation were temperature ≥ 38.5°C, fever evaluation
after postoperative Day 6, and a clinical manifestation of systemic inflammatory response syndrome other than fever (all,
P < 0.01). The cost per positive fever evaluation for the entire group, patients with 2 risk factors, or patients with 3 risk
factors was $5,600, $4,200, and $2,140, respectively.
Conclusions The current approach to fever evaluation after elective colorectal surgery is low yield and costly. High fever, late postoperative
fever, and systemic inflammatory response syndrome are risk factors for a positive fever evaluation after colorectal surgery.
Read at meeting of The American Society of Colon and Rectal Surgeons, St. Louis, Missouri, June 2 to 7, 2007. 相似文献