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排序方式: 共有699条查询结果,搜索用时 15 毫秒
1.
John Lascaratos Spiros Marketos 《Documenta ophthalmologica. Advances in ophthalmology》1988,68(1-2):157-169
The writers examine the course of Greek ophthalmology from the Hellenistic period to the foundation of the first universities (19th century). In particular, the study refers to Galen, Antyllus, the Byzantine doctors Oribasius, Aetius of Ameda, Paul of Aegina, Alexander of Tralles, Nonnus Theophanes, Theophilus Protospatharius, Michael Psellos, Meletius Monachus, Nemesius bishop of Emeses and John Actuarius. The practice of empirical ophthalmology during the Ottoman domination of Greece is also examined, as is the earliest available evidence of modern Greek ophthalmological knowledge, deriving from the Ionian Islands. 相似文献
2.
Chronic exposure to mild unpredictable stress has previously been found to depress the consumption of a palatable (1%) sucrose solution, and to attenuate food-induced place preference conditioning. In this study the effects of pramipexole (SND-919), a dopamine D2 agonist, were studied during 7–9 weeks of chronic treatment. Pramipexole (1.0 mg/kg per day) reversed the suppression of sucrose intake in stressed animals, increasing sucrose intakes above the levels seen in untreated nonstressed controls. Pramipexole also increased sucrose intake in nonstressed animals; these effects were accompanied by increases in water intake and tended to correlate with weight loss. Drug-treated stressed animals also lost weight, but in this case water intake was unaffected. A second group of animals received a higher dose of pramipexole (2.0 mg/kg per day). The effects of the two doses were very similar. After three weeks of treatment, these animals were switched to a lower dose of pramipexole (0.1 mg/kg per day). Increases in sucrose intake were maintained over three weeks of treatment at the lower dose, with significant recovery of body weight. Two further groups received the same doses of pramipexole (1.0 mg/kg for 6 weeks or 2.0 mg/kg for 3 weeks followed by 0.1 mg/kg thereafter), but received intermittent (twice-weekly) drug treatment. Intermittent pramipexole treatments also tended to increase sucrose intakes, but the results were less consistent from week to week. Following 6–8 weeks of pramipexole treatment, food-induced place preference conditioning was studied in all animals. Untreated stressed animals showed no evidence of place conditioning. Normal conditioning was seen in both groups of stressed animals treated daily with pramipexole (at 1.0 and 0.1 mg/kg) and in the group treated twice weekly at the higher dose (1.0 mg/kg); intermittent treatment at the lower dose (0.1 mg/kg) was ineffective. The results indicate that pramipexole exerts rapid anti-anhedonic effects in the chronic mild stress model. This conclusion is complicated, but not undermined, by drug-induced weight loss and by the presence of significant drug effects in nonstressed control animals. 相似文献
3.
Spiros Manolidis C. Gary Jackson Peter G. Von Doersten Dennis Pappas Michael E. Glasscock III 《Skull base》1997,7(3):129-137
Lateral skull base surgery has remained the surgical frontier of new developments in the treatment of lesions heretofore difficult to access. Examination of surgical results stimulates technical innovation and provides an intervention risk-benefit ratio assessment for particular lesions useful in management planning. With this in mind, we report the updated collective experience with lateral skull base surgery at the Otology Group over the past 20 years. Two hundred ninety-eight patients underwent surgical intervention for lateral skull base lesions. In 81 patients these lesions were malignant; in 217, benign. Of the benign lesions, 165 were glomus tumors: 139 glomus jugulare, 19 glomus vagale, and 7 glomus tympanicum. The remainder comprised 21 menigniomas, 14 neuromas, two neurofibromas, and a small group of much rarer entities. The philosophy of surgical approach, results, and follow-up are discussed. 相似文献
4.
John Lascaratos M.D. Spiros Marketos 《Documenta ophthalmologica. Advances in ophthalmology》1988,68(1-2):35-45
In this paper we examine the ophthalmological knowledge of the Hippocratic School as described in the Corpus Hippocraticum. An analysis is made of knowledge existing at the time concerning the anatomy of the eye and the physiology of vision, as well a diseases of the eye and ophthalmic surgical operations as depicted in the Corpus. In particular, the book About Vision from the Corpus Hippocraticum is discussed in detail. From our study of the extant texts it becomes apparent that not only was knowledge of ophthalmology considerably developed in the time of Hippocrates but it constituted a source of inspiration for ophthalmic treatments carried out by later physicians and in particular by those of the 19th century. 相似文献
5.
Andrew M Passam Alexandros Zafiropoulos Spiros Miyakis Ioannis Zagoreos Nikolaos G Stavrianeas Elias Krambovitis Demetrios A Spandidos 《Journal of clinical virology》2005,34(4):302-309
BACKGROUND: The chemokine receptor polymorphisms CCR5Delta32, CXCL12 3'A, CCR2-64I and CCR5-59029 G/A have been demonstrated to affect HIV-1 infection and progression. OBJECTIVE: We studied the impact of the above polymorphisms on the effectiveness of a 30-month treatment with highly active antiretroviral therapy (HAART) in 149 HIV-1 patients. STUDY DESIGN: We stratified the patients according to CD4 CDC criteria and applied Kaplan-Meier analysis using the following end-point criteria: (a) the time from HAART initiation to undetectable viral load (VL) counts (VL<50 copies/ml), (b) the duration of undetectable VL status and (c) the time required for CD4+ T-cell counts to pass over the 500 cells/ml threshold. RESULTS: Our results in the second group (CD4 201-500) revealed that patients with the CCR2-64I allele achieved undetectable VL counts at 3.5+/-0.48 months as compared to 10.26+/-1.42 months in the control group (p=0.018). The VL remained undetectable for 28+/-2 months, in contrast to 20+/-2 months in the control group (p=0.048). Patients carrying CXCL12 3'A restored the CD4 population faster than the control group (9+/-2 and 14+/-2 months, respectively, p=0.023). The CCR5Delta32 and CCR5-59029 G/A alleles did not appear to affect the parameters studied. CONCLUSIONS: Our results suggest that patients carrying either CCR2-64I or CXCL12 3'A have a more favorable prognosis during HAART treatment. 相似文献
6.
Aidonopoulos AP Papavramidis ST Zaraboukas TG Habib HW Pothoulakis IG 《Obesity surgery》1994,4(1):8-12
Morbidly obese patients constitute a high risk group for the development of gallbladder disease. In our series 70 consecutive
patients underwent vertical gastroplasty in an effort to manage morbid obesity. The mean age was 37 years (range 20-60), and
the mean excess body weight was 92 kg (range 52-265). Six patients (8.5%) had undergone cholecystectomy before bariatric surgery
because of symptomatic cholelithiasis. The remaining 64 patients underwent cholecystectomy at the time of vertical gastroplasty.
Ninety-seven percent of the removed gallbladders had gross or histologic abnormalities, including cholelithiasis 18.5% (13
patients), and cholesterolosis 31% (22 patients). Histologically, chronic cholecystitis was present in all patients with cholelithiasis
and cholesterolosis. Chronic cholecystitis alone was found in 27 patients (38.5%) and only two patients (3%) had normal findings.
The mean excess body weight of the patients with cholesterolosis (96 kg) was not significantly greater than that of patients
with cholelithiasis (89 kg) or chronic cholecystitis (88 kg). Our findings suggest that cholecystectomy should be performed
in all morbidly obese patients concomitant with vertical gastroplasty. 相似文献
7.
Hans-Heiner Kramer Michael Sommer Spyros Rammos Otto Krogmann 《European journal of pediatrics》1995,154(9):700-707
This study reports our experience with low-dose prostaglandin E1 (PGE1) treatment of 91 newborns with ductus dependent congenital heart disease (CHD). PGE1 efficacy, side-effects as well as the cardiovascular and respiratory profile of the patients were analysed. PGE1 doses > 0.02 g/kg per minute were used for only 5.3% of the total 23 656 h of treatment. The mean systolic blood pressures did not differ from the normal mean for patients with cyanotic CHD, while the diastolic values were lowered. Respiratory support was required only during 13.7% of the total treatment time. Apnoeas occurred in 21 (38%) of the 55 spontaneously breathing infants, who all had a cyanotic CHD. The incidence of apnoeas was lower during treatment with doses < 0.01 g/kg per minute. 相似文献
8.
Laparoscopic Cholecystectomy in Obese and Nonobese Patients 总被引:2,自引:1,他引:1
Gatsoulis N Koulas S Kiparos G Tzafestas N Pangratis K Pandis K Mavrakis G 《Obesity surgery》1999,9(5):459-461
Background: From November 1997 to November 1998, 145 cases of laparoscopic cholecystectomy (LC) have been attempted at the
District General Hospital of Corfu. Methods: 23 (15.8%) were obese (Group I, BMI >30) and 122 (84.2%) were nonobese patients
(Group II, BMI ≤30). One-fifth of these patients suffered from acute cholecystitis. Results: Operative time averaged 95 minutes
in Group 1 and 78 minutes in Group II. There were no deaths. There were no significant differences between the obese and nonobese
groups in conversion to open procedure (Group1: 0%, Group II: 2.4%), intraoperative and postoperative complications (Group
I: 4.3%, Group II: 4.0%), operating time, and length of postoperative hospitalization. Conclusion: LC was a safe and effective
treatment for obese patients with symptomatic cholelithiasis. 相似文献
9.
Peter G. von Doersten C. Gary Jackson Spiros Manolidis Dennis Pappas Michael E. Glasscock 《The Laryngoscope》1998,108(10):1480-1484
Objective: To statistically identify factors most important in affecting CN7 outcome in lateral skull base surgery for benign lesions. Study Design: A retrospective review of 217 nonmalignancy lateral skull base procedures from 1970 to 1995 at the Otology Group in Nashville. Methods: Charts were reviewed for epidemiology, histopathology, staging, type of CN7 mobilization (none, short, long, severance with reanastomosis, and resection), preoperative and postoperative CN7 function, surgery performed, and survival. Results: Average House-Brackman (HB) scores for mobilizations were as follows: short, 1.65: long, 2.74: and grafting, 4.33. Factors found to affect outcome in a statistically significant fashion were preoperative HB score, staging, type of CN7 manipulation, and surgical approach. Meningiomas were found to have a worse outcome than glomus tumors. Conclusions: Complete resection of tumors should be performed with minimal manipulation of the facial nerve based on regional anatomy and tumor anatomy. Laryngoscope, 108:1480–1484, 1998 相似文献
10.
Sima Blank MS Qin Wang PhD M. Isabel Fiel MD Wei Luan MD Ki Won Kim MD Hena Kadri BA John Mandeli PhD Spiros P. Hiotis MD PhD 《Annals of surgical oncology》2014,21(3):986-994