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81.
MR appearance of two patients with large, orbital conjunctival epithelium-lined inclusion cysts are presented. Both were complications of ophthalmic surgical procedures that necessitated conjunctival incision. 相似文献
82.
仿冒进口白兰地酒类快速鉴别方法初探 总被引:2,自引:0,他引:2
本文通过对南海市查获的仿冒干邑白兰地的检验,发现其pH值、酒精度、甲醇、杂醇油含量与真品的差别具有统计学显著性意义;伪品的蒸馏残留物不同于真品;部分伪品的色泽来自无机染料,为我国食品卫生标准所禁用。 相似文献
83.
Estrogen sulfotransferase (EST) catalyzes transfer of the sulfate group from phosphoadenosine phosphosulfate to estrogenic steroids. Since estrogen sulfates do not bind to the estrogen receptor with high affinity, EST can control the intracellular level of the receptor-active estrogens. Androgen action in the rat liver, as indicated by the androgenic induction of alpha 2u-globulin, is inhibited by low levels of estrogens. Thus, in situ estrogen inactivation by EST is expected to increase hepatic androgen sensitivity. During the lifespan of the animal, rat liver undergoes three distinct phases of androgen sensitivity, i.e. prepubertal androgen insensitivity, androgen sensitivity after approximately 40 days of age, and androgen insensitivity during senescence (greater than 750 days). EST in the liver is expressed only after puberty, when the liver becomes androgen sensitive. Furthermore, localization of EST and its corresponding mRNA within the lobular unit of the liver demonstrates that only androgen-responsive hepatocytes located around the central vein contain immunoreactive EST and its corresponding mRNA. These temporal and spatial correlations of EST expression and hepatic androgen sensitivity support the concept that steroid-inactivating enzymes play important roles in sex hormone action. 相似文献
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86.
Biji Bahuleyan Ankamma Rao Ari George Chacko Roy Thomas Daniel 《Journal of clinical neuroscience》2007,14(9):895-898
Chiari I malformation (CM) associated with a cervico-thoracic syrinx due to supracerebellar arachnoid cyst has not been reported in the literature. We report such a case, managed by fenestration of the arachnoid cyst and foramen magnum decompression (FMD), aiming to reduce the inferiorly directed pressure on the cerebellum and eliminate the craniospinal pressure dissociation respectively. Imaging done post-operatively showed upward displacement of the cerebellar tonsils with a decompressed craniovertebral junction and disappearance of the syrinx. 相似文献
87.
88.
BACKGROUND: Twenty subjects were treated with either polidocanol (POL) or sodium tetradecyl sulfate (STS) to compare the efficacy and adverse sequelae of each agent. OBJECTIVE: To determine the safety and efficacy of two widely used sclerosing agents. METHODS: After the exclusion of saphenofemoral junction incompetency, each subject's leg veins were categorized by size (< 1, 1-3, and 3-6 mm in diameter). Each leg was then randomized to be treated with 0.5%, 1%, or 1% foam of POL or 0.25%, 0.5%, or 0.5% foam of STS according to vein size. An independent panel of four physicians, blinded to treatment, performed randomized photographic evaluations obtained pretreatment and 12 weeks post-treatment. Subject satisfaction index and overall clinical improvement assessment were also obtained. RESULTS: An average 83% improvement was noted for all vein sizes in all subjects with both POL and STS after a single treatment. Subjects were satisfied with treatment, regardless of the sclerosing agent used or the vein size treated. There was no statistically significant difference in adverse effects between each group. CONCLUSION: Both POL and STS are safe and effective sclerosing agents in the treatment of varicose and telangiectatic leg veins. Both are very tolerable and demonstrate similar post-treatment sequelae. 相似文献
89.
Diana Bell Yi-Jue Zhao Pulivarthi H. Rao Randal S. Weber Adel K. El-Naggar 《Head and neck pathology》2007,1(2):165-168
We present an adenoid cystic carcinoma of the base of tongue in a 48-year-old male with a restricted chromosomal alteration
by cytogenetic and spectral karyotypic analysis (SKY). SKY and G-banding analyses identified the t(6;14)(q25;q13) as the sole
structural aberration in all metaphases analyzed. This finding supports a critical role for this event in the development
of this tumor. The implications of chromosome 6q translocation in this case and in previously reported adenoid cystic carcinomas
are highlighted and discussed. 相似文献
90.
Chen Xinshan Zhang Yigu Rao Guangxun Huang Guangzhao 《Frontiers of Medicine in China》2007,1(3):338-342
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a kind of primary myocardial disease characterized by the regional
or global replacement of right ventricular myocardium by fatty and fibrolipomatous tissues. The ARVC, usually presenting with
different clinical manifestations and pathological changes, were mainly seen in young men and is one of the main causes of
sudden death in the young. Here two autopsied cases of Chinese men aged 30 and 23 years old who appeared healthy but died
suddenly while at work are reported respectively. One of the victims had extensive and severe pathological changes in his
heart involving the left ventricular wall as well as the ventricular septum and the right atrium. Not only was there a global
fatty and fibrolipomatous tissue replacement of the right ventricular myocardia, but also mild sarcoplasmic coagulation in
the myocardium and focal lymphocytic infiltration in the myocardial interstitium of the right ventricular wall. In addition,
slight atherosclerosis of the coronary artery and intimal thickening of the sino-atrial node were observed. It is believed
that there are no marked differences in the pathological changes of ARVC between Chinese patients and patients from western
countries. The etiology and pathogenesis of ARVC could not be explained by a single cause or factor and they are probably
related to various congenital and acquired causes or factors. 相似文献