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排序方式: 共有325条查询结果,搜索用时 15 毫秒
1.
Farid Bourzgui Mourad Sebbar Mouna Hamza Laila Lazrak Zouhair Abidine Farid El Quars 《Progress in orthodontics》2012,13(2):164-172
ObjectivesThe purpose of this work was to evaluate the prevalence of malocclusions and orthodontic treatment need among schoolchildren in Casablanca, Morocco.Materials and methodsA sample of 1000 children aged between 8 and 12 years, with no history of orthodontic treatment, was chosen at random in state schools in different administrative areas of the city of Casablanca. Data was registered using the method of Bjork et al. (1964). Orthodontic treatment need was assessed with the index used by the Swedish National Board of Health (SweNBH).ResultsWe found Angle Class I malocclusions in 61.4%, Class II in 24%, Class III in 10% and an indeterminate molar class with one or more missing molars in 4.6% of the children. Overjet was 1–4 mm in 63.8%, 4–6 mm in 17.2% and >6 mm in 10%. Bite was normal in 65.4%, 23.6% presented an overbite greater than 4 mm, 1.7% an anterior open bite ≤3 mm, 1.2% an anterior open bite >3 mm and 0.2% a bilateral open bite. Half of the sample presented anterior crowding, while only 2.5% presented posterior crowding. In all, 84.2% of the subjects needed some orthodontic treatment, and 15.8% needed no treatment. No statistically significant difference was found between sex or age and orthodontic treatment need (P>0.05).ConclusionsThis study found a strong need for orthodontic treatment, confirming the utility of implementing a programme of bucco-dental prevention and screening for malocclusion. 相似文献
2.
Wajdi Mkacher Zouhair Tabka Faten Chaieb Meriem Gueddes Monia Zaouali Chirine Aouichaoui 《COPD》2014,11(6):681-688
Background: Skeletal muscle wasting commonly occurs in patients with chronic obstructive pulmonary disease (COPD) and has been associated with the presence of systemic inflammation and endocrinological disturbance. The aim of this study is to analyze the effect of rehabilitation program on the balance of anabolic versus catabolic hormone in patients with COPD and in healthy subjects. Methods: Nineteen patients with COPD and 16 age-matched healthy subjects undertooked exercise training 3 days/week for 8 weeks. Before and after the training program the concentration of growth hormone (GH), Insulin-Like Growth Factor-1 (IGF-1), Insulin-like Growth Factor-Binding Protein 3 (IGF-BP3), testosterone and cortisol in serum were determined. The exercise measurements included a 6-Minute Walking Test (6MWT). Results: After 8 weeks, there was no significant change in lung function in patients with COPD and healthy subjects. Growth hormone, Insulin-like Growth Factor-1 and Insulin-like Growth Factor-Binding Protein 3 increased significantly after rehabilitation training (p < 0.01). The rehabilitation program improves the testosterone/cortisol ratio (T/C ratio) in both groups. There is a significant improvement in the 6-Minute Walking distance (6MWD) in both groups (p < 0.01). Dyspnea and heart rate at rest and at the peak of the 6-Minute Walking Test (6MWT) decreased significantly after training program (p < 0.01). Conclusion: Pulmonary rehabilitation induces an improvement of the anabolic process and reduces proteine distruction by the modifications in endocrinological factors regulating skeletal muscle in patients with COPD. 相似文献
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4.
Prevalence of medical conditions among patients attending dental teaching clinics in northern Jordan
Khader YS Alsaeed O Burgan SZ Amarin ZO 《The journal of contemporary dental practice》2007,8(1):60-67
AIM: This study was conducted to estimate the prevalence of self reported medical conditions among dental patients attending dental teaching clinics in north Jordan. METHODS AND MATERIALS: A total of 1,509 patients were included, of which 46.1% were males and 53.9% were females. All age groups were included and ranged between 14 and 78 years. The findings were analyzed in relation to age and gender. RESULTS: Overall, gastrointestinal disease was most prevalent (11.9%), followed by bleeding tendencies (9.3%), renal disorders (8.7%), respiratory disease (8.3%), and hypertension (6.4%). Only 3.2% of the participants reported having antibiotics prescribed for them prior to a dental procedure for prophylactic purposes. CONCLUSION: Due to the high frequency of medical conditions, thorough evaluation of patients' medical and dental care histories should be a mandatory first step in their management. 相似文献
5.
Ramón Rodríguez-Olivares Nahid El Faquir Zouhair Rahhab Lennart van Gils Ben Ren Rafi Sakhi Marcel L. Geleijnse Ron van Domburg Peter P.T. de Jaegere Jose L. Zamorano Gómez Nicolas M. Van Mieghem 《Cardiovascular Revascularization Medicine》2019,20(2):126-132
Aims
We sought to evaluate the interaction of different aortic root phenotypes with self-expanding (SEV), balloon-expandable (BEV) and mechanically expanded (MEV) and the impact on significant aortic regurgitation.Methods and results
We included 392 patients with a SEV (N?=?205), BEV (N?=?107) or MEV (N?=?80). Aortic annulus eccentricity index and calcification were measured by multi-slice CT scan. Paravalvular aortic regurgitation was assessed by contrast aortography (primary analysis) and transthoracic echocardiography (secondary analysis).In mildly calcified roots paravalvular regurgitation incidence was similar for all transcatheter heart valves (SEV 8.4%; BEV 9.1%; MEV 2.0% p?=?0.27). Conversely, in heavily calcified roots paravalvular regurgitation incidence was significantly higher with SEV (SEV 45.9%; BEV 0.0%; MEV 0.0% p?<?0.001). When paravalvular regurgitation was assessed by TTE, the overall findings were similar although elliptic aortic roots were associated with more paravalvular regurgitation with SEV (20.5% vs. BEV 4.5% vs. MEV 3.2%; p?=?0.009).Conclusions
In heavily calcified aortic roots, significant paravalvular aortic regurgitation is more frequent with SEV than with BEV or MEV, but similar in mildly calcified ones. These findings may support patient-tailored transcatheter heart valve selection.Classifications
Aortic stenosis; multislice computed tomography; transcatheter aortic valve replacement; paravalvular aortic regurgitation.Condensed abstract
We sought to evaluate the interaction of different aortic root phenotypes with self-expanding (SEV), balloon-expandable (BEV) and mechanically expanded (MEV) and the impact on significant aortic regurgitation. We included 392 patients with a SEV (N?=?205), BEV (N?=?107) or MEV (N?=?80). Aortic annulus eccentricity index and calcification were measured by multi-slice CT scan. Paravalvular aortic regurgitation was assessed by contrast aortography and transthoracic echocardiography. We found that in heavily calcified aortic roots, significant paravalvular aortic regurgitation is more frequent with SEV than with BEV or MEV, but similar in mildly calcified ones. 相似文献6.
M Elloumi O Ben Ounis E Makni E Van Praagh Z Tabka G Lac 《Acta paediatrica (Oslo, Norway : 1992)》2009,98(9):1487-1493
Aim: We investigate the effects of a 2-month weight-loss programme on plasma levels of adiponectin, leptin and resistin in obese adolescent boys.
Methods: Twenty-one obese adolescent boys (BMI = 30.8 ± 3.2 kg/m2 ) completed the weight-loss programme including: 1/ either energy restriction (R), 2/ or individualized exercise training at the point of maximum lipid oxidation (Lipoxmax ) (E), 3/ or energy restriction and training (RE). Body composition, lipid oxidation and plasma levels of adiponectin, leptin and resistin were measured before and after intervention.
Results: Following the weight-loss programme, adolescents of the RE group showed an improvement of their body composition (p < 0.01), an increase in plasma adiponectin (+73.7%, p < 0.01) and a decrease in plasma leptin (−38.8%, p < 0.01) leading to an increase in adiponectine/leptin ratio (ALR, +144.4%, p < 0.01) higher than the R or E groups. E and RE groups only showed a similar significant increase in plasma resistin (p < 0.05) and a significant improvement of lipid oxidation rate at Lipoxmax (p < 0.01 and p < 0.001). In addition, in RE group, ALR is correlated with waist/hip and waist/height ratios, resistin level, homoeostasis mode assessment (HOMA-IR) index and Lipoxmax .
Conclusion: In obese adolescents boys, moderate exercise training completed at Lipoxmax and combined with energy restriction improves their ability to oxidize lipids, which is associated with a normalization of their adiponectin, leptin and resistin levels resulting in an improved insulin sensitivity, as attested by a higher ALR and a lower HOMA-IR. 相似文献
Methods: Twenty-one obese adolescent boys (BMI = 30.8 ± 3.2 kg/m
Results: Following the weight-loss programme, adolescents of the RE group showed an improvement of their body composition (p < 0.01), an increase in plasma adiponectin (+73.7%, p < 0.01) and a decrease in plasma leptin (−38.8%, p < 0.01) leading to an increase in adiponectine/leptin ratio (ALR, +144.4%, p < 0.01) higher than the R or E groups. E and RE groups only showed a similar significant increase in plasma resistin (p < 0.05) and a significant improvement of lipid oxidation rate at Lipox
Conclusion: In obese adolescents boys, moderate exercise training completed at Lipox
7.
The management of rare cancers is controversial. The role of adjuvant therapies, such as chemotherapy and radiation therapy remains unclear. The limited number of patients included in the studies cannot generally allow any consistent statistical analysis to determine either prognostic factors or the impact of surgery and adjuvant therapies on local control and long-term survival. The Rare Cancer Network is a multi-institutional cooperative group created in 1993 to initiate large retrospective studies on rare cancers with the aim of improving our knowledge in terms of management, outcome, and prognostic factors of such tumors. The network gathers more than 70 institutions from 21 countries. So far, 32 projects have been carried out. In this report we will discuss the most significant data provided by our group in several investigated diseases. 相似文献
8.
Osvaldo Uchitel Andrew G. Engel Timothy J. Walls Alexandre Nagel M. Zouhair Atassi Vera Bril 《Muscle & nerve》1993,16(12):1293-1301
A 21-year-old woman had myasthenic symptoms since birth that responded poorly to anticholinesterase therapy. Tests for acetylcholine receptor (AChR) antibodies were negative. An intercostal muscle specimen was obtained to investigate the character of the neuromuscular transmission defect. There were no immune deposits at the endplates. The quantal content of the endplate potential was normal. Miniature endplate potentials and currents were very small, but the number of AChR per endplate was normal. On electron microscopy, the synaptic vesicles were of normal size, the junctional folds were intact, and the density and distribution of AChR on the folds was normal. The kinetic properties of AChR were studied by analysis of acetylcholine (ACh)-induced current noise. The mean single channel conductance was normal. The noise power spectrum was abnormal, containing two components of different time course. This could result from an abnormal interaction of ACh with AChR, or from two populations of AChR at the endplate. The second possibility is unlikely because if two populations of AChR were present at the endplate, then both would have to have low conductance to explain the small miniature endplate current, but the average conductance of the channels that did open was normal. © 1993 John Wiley & Sons, Inc. 相似文献
9.
Previously, we have shown by radioimmune antibody binding studies that immunization with each of the five synthetic antigenic sites of sperm-whale myoglobin (Mb), in their free form (i.e. not coupled to a carrier), resulted in the formation of antibodies that bound specifically to Mb and exclusively to the peptide that was used in immunization. In the present series of studies we have immunized separate groups of Balb/cByJ mice with different amounts of each of the free synthetic antigenic sites so as to determine the optimum immunizing dose for eliciting serum antibodies that bind specifically to Mb. The synthetic peptides corresponded to: Site 1 (peptide 15-22), Site 2 (peptide 56-62), Site 3 (peptide 94-100), Site 4 (peptide 113-120), and Site 5 (peptide 145-151). The dose range of each of the antigenic sites used in immunization was from 6 μg to 100 μg. Radioimmune antibody binding studies indicated that there is an optimal immunizing dose for each of the five antigenic sites which was smaller than anticipated. The significance of these findings is discussed. 相似文献
10.
Gmada N Bouhlel E Mrizak I Debabi H Ben Jabrallah M Tabka Z Feki Y Amri M 《International journal of sports medicine》2005,26(10):874-879
The purpose of this study was to determine the effect of different modalities of individualized active recovery on blood lactate disappearance after supramaximal exercise in subjects with different levels of aerobic fitness. Fourteen healthy subjects (7 trained and 7 untrained subjects mean age 20 +/- 1.5 and 19.5 +/- 1.5, respectively) participated in this study. They performed three supramaximal intermittent exercises at 60 % of the time to exhaustion at 120 % of the maximum aerobic power (MAP) with 5-min recovery periods (2 x 5 min). The third exercise was followed by 20 min of recovery. The effects of four types of recovery were compared in trained and untrained subjects: passive recovery (PR), an active recovery at an intensity corresponding to the first anaerobic ventilatory threshold minus 20 % (VT1), an active recovery at an intensity corresponding to the second anaerobic ventilatory threshold minus 20 % (VT2) and a combined active recovery (CR) which consisted of 7 min at VT2 followed by 13 min at VT1. Blood lactate levels were measured at rest and during the recovery periods. Peak blood lactate after supramaximal exercise was observed significantly earlier with VT2 and CR (4th min) than VT1 and PR (7th min) in trained and in untrained subjects. Combined active recovery (CR) showed a significantly faster lactate disappearance than did PR, VT1, or VT2 from the 7th min of recovery in trained subjects (p < 0.05) and at the 20th min in untrained subjects (p < 0.05). CR and VT2 conditions showed earlier peak blood lactate (4th min) than PR or VT1 (7th min). Blood lactate disappearance was faster in trained than untrained subjects during combined active recovery. This result suggests that the level of physical fitness plays an important role mainly in the pattern of blood lactate decrease during combined active recovery. 相似文献