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排序方式: 共有188条查询结果,搜索用时 0 毫秒
91.
Symptomatic xanthogranulomas are rare lesions that most commonly occur in adults. A case of giant bilateral xanthogranulomas in a 6-year-old boy, who remains without tumor recurrence 9 years after resection, is presented. The operative management of these unusually large lesions is discussed. The pathogenesis of xanthogranulomas is reviewed as it relates to the presentation of these lesions in the pediatric population. 相似文献
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Fortoul TI Saldivar O L Espejel-Maya G Bazarro N P Mussali-Galante P Avila-Casado Mdel C Colin-Barenque L Avila-Costa MR 《Environmental toxicology and pharmacology》2005,19(2):329-334
The human population in the industrialized world is constantly exposed to chemical mixtures of pollutants such as metals; information about the consequences of the interactions of these compounds on health is scarce. The current study examines the effects of the inhalation of lead (Pb), cadmium (Cd) and Pb-Cd mixture in mice models analyzing the metal concentrations in lung, and the morphological modifications in the bronchiolar epithelium identified by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) after 4 weeks of inhalation. Our results showed that metal concentrations in lung were higher compared to controls; however, Pb concentrations drastically decrease with the mixture. This reduction was also observed in the inhalation chamber. These data correlate with the morphological alterations observed, which consisted of flattened and decreased number of nonciliated bronchiolar cells (NCBC), bald ciliated cells and bundles of NCBC. These modifications were mainly given by Cd, alone or in combination with Pb. The clusters formed by NCBC cells suggest cell proliferation which probably means that after metal inhalation, the cells enhance their proliferative capacity in order to repopulate the bronchiolar wall. 相似文献
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Haghdoost-Yazdi H Faraji A Fraidouni N Movahedi M Hadibeygi E Vaezi F 《Behavioural brain research》2011,223(1):70-74
Parkinson's disease (PD) is a progressive neurodegenerative disorder characterizing by degeneration of dopaminergic neurons in the nigrostriatal pathway. The discovery of levodopa revolutionized the treatment of PD however, after several years of treatment most patients develop involuntary movements which significantly impair the quality of life. 4-Aminopyridine (4-AP) and tetraethylammonium (TEA) are wide-spectrum potassium channel blockers which based on the animal model studies and clinical trials have beneficial effects in treatment of several neurological disorders such as ataxia, Alzheimer disease and multiple sclerosis. Current study investigates effect of these blockers in the treatment of 6-hydroxydopamine (6-OHDA)-induced Parkinsonism. After surgical injection of 6-OHDA into medial forebrain bundle, behavioral tests were performed in the 2nd and 3rd weeks post-surgery. Only animals which showed more than 100 apomorphine-induced rotations/1 h in the 3rd week were selected for evaluation of the blocker effects. Statistical analysis of results from rotational test shows that application of high dose of 4-AP (1 mg/kg) and moderate dose of TEA (2 mg/kg) attenuate behavioral symptoms of the Parkinsonism while high dose of TEA (5 mg/kg) and application both 4-AP and TEA exacerbates these symptoms. Results from elevated body swing test confirmed the effects of TEA but not 4-AP on the rotational test. However, experiments performed on the partial Parkinsonian rats show that application of high dose of TEA attenuates apomorphine-induced rotational asymmetry significantly. Our findings indicating TEA and 4-AP could have significant effects in attenuation of PD symptoms but these effects are sensitive to dose and degree of severity of PD. 相似文献
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Sibel Kucukoglu Ayda Celebioglu Ibrahim Caner Gamze Ok Rukiye Maden 《Iranian journal of pediatrics.》2015,25(3)
Background:
Premature infants, who have to spend the first week of their lives in neonatal intensive care units (NICUs), experience pain and stress in numerous cases, and they are exposed to many invasive interventions. The studies have shown that uncontrolled pain experienced during early life has negative and long-term side effects, such as distress, and such experiences negatively affect the development of the central nervous systemObjectives:
The purpose of the study was to examine the effects of touching on infant pain perception and the effects of eutectic mixture of local anesthetic (EMLA) on the reduction of pain.Patients and Methods:
Data for the study were collected between March and August 2012 from the neonatal clinic of a university hospital located in eastern Turkey. The population of the study consisted of premature infants who were undergoing treatment, completed the first month and who were approved for Hepatitis B vaccine. The study consisted of two experimental groups and one control group. Information forms, intervention follow-up forms, and Premature Infant Pain Profile (PIPP) were used to collect the data. EMLA cream was applied on the vastus lateralis muscles of the first experimental group before the vaccination. The second experimental group was vaccinated by imitation (placebo), without a needle tip or medicine. Vaccination was carried out using instrumental touch in this group. A routine vaccination was applied in the control group.Results:
Mean pain scores of the group to which EMLA was applied were lower in a statistically significant way (P < 0.05) compared to the pain scores of the other groups. Moreover, it was determined that even though invasive intervention was not applied to the newborns, the touching caused them to feel pain just as in the placebo group (P < 0.005).Conclusions:
The results demonstrated that EMLA was an effective method for reducing pain in premature newborns, and the use of instrumental touch for invasive intervention stimulated the pain perception in the newborns. 相似文献99.
Tannys Dawn Reiko Vause David J. Allison Tricia Vause Ayda Tekok-Kilic David S. Ditor Jason K. Min 《Journal d'obstetrique et gynecologie du Canada》2018,40(5):588-594
Objective
The objective of this prospective RCT was to compare the efficacy of a web-based teaching tool to traditional didactic teaching in IVF patients.Methods
Forty women undergoing their first IVF cycle were randomly allocated to an interactive web-based teaching session or a nurse-led didactic teaching session. The primary outcome measure was participant knowledge regarding the IVF process, risks, and logistics assessed before and after the respective teaching session. Secondary outcomes included patient stress, assessed before and after the respective teaching session, and patient satisfaction, assessed following the respective teaching session and on the day of embryo transfer (following implementation of the teaching protocol).Results
Both groups demonstrated similar and significant improvements in knowledge and stress after exposure to their respective teaching sessions. The web-based group was significantly more satisfied than the didactic teaching group. Web-based teaching was also shown to be equally effective for participants of high versus low income and education status for knowledge, stress, and satisfaction.Conclusion
This study provides preliminary support for the use of web-based teaching as an equally effective tool for increasing knowledge and reducing stress compared to traditional didactic teaching in IVF patients, with the added benefit of increased patient satisfaction. 相似文献100.
Objective: The ideal nourishment for newborns with low birth-weight is breast milk. The purpose of the study was to determine the effect of natural-feeding education given to mothers of low-birth-weight infants, on the mothers’ breast-feeding self-efficacy level, breast-feeding success, and the growth of the infants.
Methods: The study was conducted in a quasi-experimental way. The study group consisted of a total of 85 low-birth-weight infants and their mothers who had been treated in the neonatal clinics of two hospitals. The mothers included in the test group were given breast-feeding education for half an hour per day, during the first 5 days of their hospitalization. Home visits were carried out at the homes of the participants from both the test and control groups, until the infants reached 6 months of age. For collecting data, the following forms were used: Personal Information Form, Breast-feeding Self-Efficacy Form, LATCH Breast-feeding Assessment Tool, and Anthropometric Measurements Form. For analyzing the collected data, percentage, arithmetic mean, standard deviation, and chi-square we used, and, in independent groups, t-tests were employed.
Findings
: It was determined that natural-feeding education given to the mothers increases their breast-feeding self-efficacy levels and success in breast-feeding (P<0.05). It was found that in the test group, the rate of feeding the infants exclusively with breast milk is higher in comparison with the control group (P<0.001).
Conclusion: Results of the study indicate that natural-feeding education increases breast-feeding self-efficacy levels, breast-feeding success, and the breast-feeding duration.Key Words: Low Birth Weight, Infant, Neonate, Breast Feeding, Self Efficacy, Growth, Nursing 相似文献