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121.
四神止泻胶囊的制备及其质量控制 总被引:1,自引:0,他引:1
目的:制备四神止泻胶囊,并建立质量控制方法。方法:采用薄层色谱法鉴别肉豆蔻、五味子和吴茱萸三味药材,高效液相色谱法测定成品中补骨脂素和异补骨脂素的含量。结果:肉豆蔻、五味子和吴茱萸薄层色谱斑点清晰;成品三批中补骨脂素和异补骨脂素含量稳定。结论:四神止泻胶囊制备工艺合理,质量控制方法可行。 相似文献
122.
目的:建立生化产复康胶囊中阿魏酸的含量测定方法。方法:采用高效液相色谱法,以kromasil C18柱为固定相,乙睛-0.085%磷酸溶液(17:83)为流动相,检测波长315nm,流速1.0ml/min,柱温35℃。结果:阿魏酸在0.076~0.228ug(r=0.9999)范围内线性关系良好,平均回收率为100.25%、RSD为1.84%。结论:本方法简便,准确,重现性好,可用于测定生化产复康胶囊中阿魏酸的含量。 相似文献
123.
We present a rare case of a non-calcified pilomatricoma in a 67-year-old man. This tumor was extremely large in size, and
its location, in the lower extremity, was very unusual. The clinical, radiographic, and histopathological features are described
in detail. The role of magnetic resonance imaging (MRI) in the diagnosis of this entity is discussed. Definite internal reticulations
and septations were observed. A possible explanation for this observation is that the high signal intensity reticulations
may represent edematous stroma surrounding basaloid cells.
Received: 8 July 1999 Revision requested: 28 July 1999 Revision received: 10 September 1999 Accepted: 13 September 1999 相似文献
124.
Alveolar soft part sarcoma: MR and angiographic findings 总被引:5,自引:5,他引:0
Suh JS Cho J Lee SH Shin KH Yang WI Lee JH Cho JH Suh KJ Lee YJ Ryu KN 《Skeletal radiology》2000,29(12):680-689
Objective. To present the MR and angiographic findings of alveolar soft part sarcoma (ASPS).
Design and patients. MR examinations (12 tumors of 10 patients) of ASPS performed at multiple hospitals were retrospectively reviewed. The tumors
were found in the thigh (n=4), lower leg (n=4), femur (n=2, local metastasis), scalp (n=1) and arm (n=1). The MR signal characteristics including signal intensity, homogeneity and signal void of lesions and bony invasion including
direct invasion or local metastasis were evaluated. Angiographic findings (n=4) and post-embolotherapy follow-up MR imaging (n=2) findings were also assessed.
Results. Local bony metastasis was found in two cases. Seven tumors showed heterogeneous high signal intensity on T1- and T2-weighted
images with good enhancement. One tumor had a very high signal on T1-weighted images. Eight tumors (67%) showed numerous signal
voids in or near the tumors. All four angiographic studies showed numerous enlarged vessels, arteriovenous shunts and delayed
washout. Two cases mimicked arteriovenous malformations on angiographic studies but MR images demonstrated solid soft tissue
components as well as tortuous vessels.
Conclusions. High signal on T1-weighted image and numerous signal voids are highly suggestive of ASPS, although they are not universal
as has been suggested and arteriovenous malformation should be included in the differential diagnosis. Local bony metastases
in ASPS were seen in two cases and should be carefully investigated.
Received: 12 April 2000 Revision requested: 27 June 2000, 8 August 2000 Revision received: 2 August 2000, 21 August 2000 Accepted:
22 August 2000 相似文献
125.
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128.
目的:建立复合氨基酸胶囊中5种水溶性维生素的含量测定方法.方法:采用高效液相色谱法,用乙腈与庚烷磺酸钠-磷酸钠的水溶液(pH=3.0)为流动相,流速1.0ml·min-1,色谱柱为C18(4.6×250mm,5μm),柱温40℃,检测波长为280nm,进样量为20μl.结果:维生素Bl、维生素B2、维生素B6、维生素C和烟酰胺分别在24.7~75.2μg·ml-1、15.0~44.9μg·ml-1、12.2~37.5μg·ml-1、99.2~299.9μg·ml-1和100.3~300.9μg·ml-1范围内呈线性关系,相关系数均为1.000,平均回收率均在100%±2%范围以内.RSD分别为0.19%、0.26%、0.46%、1.17%和0.52%.结论:本方法准确,简便,快捷,可以同时测定复合氨基酸胶囊中维生素B1、维生素B2、维生素B6、维生素C和烟酰胺的含量. 相似文献
129.
《Injury》2014,45(12):2013-2017
BackgroundReconstruction of soft tissue defects in fingers continues to be a challenging problem. The purpose of this study is to report the reconstruction of small-to-moderate defects of fingers with dorsal digital island flap (DDIF) and to evaluate the efficacy of use of the flap.MethodsOver last six years, a retrospective study was conducted with 65 patients who had soft tissue defects of fingers treated with the DDIF. Sixty-nine soft-tissue defects were found in 69 fingers in 65 patients. Based on the flow direction of blood supply, the patients were divided into two groups: the direct (n = 35) and reversed (n = 30) DDIF groups. In addition, based on the different donor sites, the direct DDIF group was divided into two subgroups: the proximal phalangeal direct DDIF subgroup (n = 16) and the extended pedicle direct DDIF subgroup (n = 19). The main outcomes were static 2-point discrimination and Semmes–Weinstein monofilament scores of flap and joint motion.ResultsAt the final follow-up, the mean static two-point discrimination of the flaps was 9.7 mm (range, 8 to 12 mm) in the proximal phalangeal direct DDIF subgroup and 8.3 mm (range, 7 to 11 mm) in the extended pedicle direct DDIF subgroup, with a significant difference (p = 0.005). In the direct DDIF group, there was no significant difference in total active motion between the donor fingers and the opposite sides. In the reversed DDIF group, the mean total active motion of the donor fingers was 170° and the data of the opposite sides was 181°, with a significant difference (p = 0.024). Maximum amplitude losses of 15° were seen in 12% of patients in the distal interphalangeal joint.ConclusionsThe DDIF is reliable and technically easy for reconstructing small-to-moderate defects of fingers. The extended pedicle direct DDIF may be an optional solution when sensory reconstruction is needed. 相似文献
130.
《Ultrasound in medicine & biology》2016,42(10):2391-2400
Our purpose was to evaluate the feasibility of using ultrasonographic criteria of thyroid capsular continuity and tumor contour to differentiate macroscopic extra-thyroidal extension (ETE) from microscopic ETE, as well as non-ETE from ETE. On ultrasonography, we evaluated thyroid capsular continuity (C0 = continuous, C1 = discontinuous, C2 = invisible), and thyroid tumor contour (P0 = in normal parenchyma, P1 = abutting, P2 = bulging), which were grouped into type 1–9 classifications. Either C1–2 or P1–2 was more prevalent in ETE than non-ETE. C1 and P2 tended to be associated with macroscopic ETE, whereas C0 and P1 were significantly associated with microscopic ETE. Types 6, 8 and 9 were more likely to have ETE than non-ETE; type 6 (C1 P2) and type 9 (C2 P2) were significantly associated with macroscopic ETE, whereas type 8 (C2 P1) was associated more with microscopic ETE. Macroscopic and microscopic ETE, as well as non-ETE and ETE, can be differentiated using these pre-operative ultrasonographic criteria. 相似文献