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排序方式: 共有730条查询结果,搜索用时 15 毫秒
721.
Toledano Manuel Muñoz-Soto Esther Aguilera Fátima S. Osorio Estrella Pérez-Álvarez Mayra C. García-Menocal José AD. Toledano-Osorio Manuel Osorio Raquel 《Clinical oral investigations》2020,24(1):285-299
Clinical Oral Investigations - The aim of this study was to evaluate the remineralization ability of three endodontic sealer materials at different root dentin regions. Cervical, medial, and apical... 相似文献
722.
723.
Crossmatch-compatible platelets improve corrected count increments in patients who are refractory to randomly selected platelets 总被引:8,自引:0,他引:8
BACKGROUND: HLA-matched platelets and crossmatch-compatible platelets are used to support thrombocytopenic patients who are refractory to randomly selected platelets. Data supporting the effectiveness of crossmatch-compatible platelets are limited, being essentially restricted to the subset of refractory patients previously shown to be alloimmunized. The authors' hospital does not test for alloimmunization. To determine the effectiveness of crossmatch- compatible platelets in an unselected group of refractory patients, the use of such platelets for all patients who are refractory to random- donor platelets was reviewed. STUDY DESIGN AND METHODS: All patients who received crossmatch-compatible platelets between January 1991 and May 1994 were retrospectively reviewed. All study patients were refractory to random-donor platelets, having two consecutive corrected count increments (CCIs) of < 10,000. A solid-phase red cell adherence method was used for platelet crossmatching, and CCI was used to monitor the effectiveness of each platelet transfusion. RESULTS: A total of 475 crossmatch-compatible platelet components were administered to 66 evaluable patients who were refractory to random-donor platelets. A significant improvement was found in the mean CCI when crossmatch- compatible platelets were compared with randomly selected platelets (p < 0.0001): an increase of 8000 +/? 6100 (mean +/? SD). In 59 percent (39/ 66) of the patients, the mean CCI improved to at least 7,500 and in 41 percent (27/66) to at least 10,000. If the 10 patients for whom crossmatch-compatible platelets were not identified are included, the mean CCI in 51 percent (37/76) of the refractory patients improved to at least 7,500; in 36 percent (27/76), it improved to at least 10,000. The effectiveness of crossmatch-compatible platelets did not decline with continued use. CONCLUSION: Crossmatch-compatible platelet components significantly improve the mean CCI for approximately one- half of patients who are refractory to random-donor platelets, even when the patients are not preselected for having alloimmunization to explain their refractory state. 相似文献
724.
725.
AD Houghton MS FRCS Y Panayiotopoulos MD PhD PR Taylor mchir FRCS 《International journal of clinical practice》1996,50(2):103-105
SUMMARY Varicose veins cause a great deal of morbidity in our population today. Despite the large amount of surgical time spent dealing with the problem, there is still a disappointingly high recurrence rate and many patients are investigated inadequately before surgery. This review considers the assessment of ‘simple’ varicose veins using a combination of tourniquet tests and a hand-held doppler probe. The place of more sophisticated investigative techniques is also discussed, in particular the value of duplex assessment in localising the variably sited sapheno-popliteal junction. Routine stripping of the long saphenous vein to the below-knee level is likely to decrease the recurrence rate of simple, long, saphenous varicose veins. 相似文献
726.
Petrie JR; Morris AD; Dorrian CA; Small M; Connell JM 《QJM : monthly journal of the Association of Physicians》1997,90(7):465-475
Serum insulin concentrations have been used as markers of insulin
resistance in population studies examining the relationship between insulin
resistance and blood pressure, but the relationship is variable among
studies. We hypothesized that differences in cross-reactivity of insulin
assays with proinsulin and its split/des-amino products might account for
the variation. We therefore examined fasting and post- glucose load serum
insulin concentrations (determined by both specific and conventional
assays), insulin sensitivity (measured by the euglycaemic clamp technique),
and blood pressure, in a group of 56 diabetic (NIDDM) and non-diabetic
subjects. Insulin concentrations as measured by the two methods were highly
correlated (r = 0.97, p < 0.0001), and the relationships among serum
insulin concentrations, insulin sensitivity and blood pressure were
independent of assay method; for example, in non-diabetic subjects the
univariate correlation between log10AUC insulin and insulin sensitivity
index was similar with both methods [r = -0.81 vs. r = -0.82, p < 0.0001
(specific vs. conventional assay)]. Discrepancies between studies in the
relationship between serum insulin concentrations and blood pressure are
unlikely to be due to cross-reactivity of conventional insulin assays with
proinsulin-like molecules.
相似文献
727.
Polymorphous light eruption 总被引:2,自引:0,他引:2
AJ Stratigos C Antoniou AD Katsambas 《Journal of the European Academy of Dermatology and Venereology》2002,16(3):193-206
Polymorphous light eruption (PLE) is a common idiopathic photosensitivity disorder with an estimated prevalence of 10-20%. It is characterized by an intermittent skin reaction to ultraviolet (UV) radiation exposure, consisting of non-scarring pruritic erythematous papules, vesicles or plaques that develop on light-exposed skin. Despite the different morphology in different individuals, the eruption tends to have a monomorphous presentation in any single subject. The histopathological features of PLE are distinct and comprise a perivascular lymphocytic infiltrate in the dermis, subepidermal oedema and variable epidermal changes. The pathogenesis of PLE is not well known, but findings suggest that it is a delayed-type hypersensitivity reaction to one or more UV-modified cutaneous antigens. The principal action of PLE is mainly in the UVA region, although some subjects exhibit sensitivity to UVB alone or to both UVA and UVB radiation at the same time. Preventive measures in PLE include the regular use of photoprotective methods combined with graduated exposures to natural sunlight. The induction of immune tolerance by phototherapy and photochemotherapy are useful prophylactic methods in moderate to severe cases. The role of systemic agents in the management of PLE is under investigation. This article reviews the epidemiological, pathogenetic and clinical aspects of PLE and discusses recent advances in the diagnostic approach and management of this condition. 相似文献
728.
Chad E. Glasser PharmD Michael R. Gartner MD Dawn Wilson BS Barry Miller MS Matthew L. Sherman MD Kenneth M. Attie MD 《Muscle & nerve》2018,57(6):921-926
Introduction: ACE‐083 is a locally acting follistatin‐based therapeutic that binds myostatin and other muscle regulators and has been shown to increase muscle mass and force in neuromuscular disease mouse models. This first‐in‐human study examined these effects. Methods: In this phase 1, randomized, double‐blind, placebo‐controlled, dose‐ranging study in healthy postmenopausal women, ACE‐083 (50–200 mg) or placebo was administered unilaterally into rectus femoris (RF) or tibialis anterior (TA) muscles as 1 or 2 doses 3 weeks apart. Results: Fifty‐eight postmenopausal women were enrolled, 42 ACE‐083 and 16 placebo. No serious adverse events (AE), dose‐limiting toxicities, or discontinuations resulting from AEs occurred. Maximum (mean ± SD) increases in RF and TA muscle volume were 14.5% ± 4.5% and 8.9% ± 4.7%, respectively. No significant changes in mean muscle strength were observed. Discussion: ACE‐083 was well tolerated and resulted in significant targeted muscle growth. ACE‐083 may have the potential to increase muscle mass in a wide range of neuromuscular disorders. Muscle Nerve 57 : 921–926, 2018 相似文献
729.
慢性乙型肝炎的口服抗病毒药物评价 总被引:2,自引:0,他引:2
美国食品和药品管理局(FDA)已批准拉米夫定(LAM)、阿德福韦(ADV)、恩替卡韦(ETV)和替比夫定(LdT)这四种口服抗病毒药物用于治疗慢性乙型肝炎(CHB),其Ⅲ期临床试验的疗效、安全性及耐药情况总结于表1和表2。尽管每种药物均表现出良好的安全性,但对长期治疗而言也存在限制性。而且,这些药物均独立进行研发,仅作为单药治疗进行临床验证, 相似文献
730.
Missiaglia E Jacobs B D' ArioG Di Narzo AF Soneson C Budinska E Popovici V Vecchione L Gerster S Yan P Roth AD Klingbiel D Bosman F Delorenzi M Tejpar S 刘嘉 《中国肿瘤外科杂志》2014,(4):256-256
背景远端和近端结肠癌在起源,基因暴露,环境诱变及肠道菌群等方面均存在差异。然而这些差异很少被用来解释如何影响肿瘤的发生机制,特异的治疗响应及预后情况。研究系统性探索了远端与近端结肠癌的差异及这些差异的临床意义。资料与方法研究共纳入3 045例结肠癌患者的详细临床病理数据用于分析,这些患者资料均来源于PETACC3(关于结肠癌辅助化疗)临床试验。这些数据中, 相似文献