FS03.6Efficacy of MAS063D (''Atopiclair'') in irritant contact dermatitis

Objective:  To determine the efficacy of a topical, MAS063D, in managing the clinical signs and symptoms of experimentally induced irritant contact dermatitis (ICD).
Methods:  Two patches of ICD were created using sodium lauryl sulfate (SLS) in 20 consenting volunteers. MAS063D was applied to one patch and a vehicle‐only control to the other. Measurements were taken at baseline, 24, 48 and 72 hours as follows: blood flow volume (BFV); skin color (a*); transepidermal water loss (TEWL); patient's view of itch and visual scoring. Results: The objective measurements of BFV, a* and TEWL all showed statistically significant benefits of MAS063D over the vehicle‐only control. BFV and a* were significantly better at all time points (p = 0.046, p = 0.045 respectively at 72 hours) and TEWL at 48 and 72 hours (p = 0.02 at 72 hours). MAS063D demonstrated benefit in the visual scoring of irritant contact dermatitis that was not statistically significant. Patient‐assessed itch was low at baseline; significant improvement was neither expected nor demonstrated although a small benefit of MAS063D over vehicle was seen in the mean values.
Conclusions:  BFV and a* are both good indicators of local erythema. TEWL is a good indicator of skin integrity. MAS063D therefore demonstrated statistically significant benefit over vehicle on three clinically meaningful outcomes of SLS‐induced ICD, and therefore may benefit irritant contact dermatitis.     

Magnetic resonance imaging and spectroscopy of hepatic iron overload

Experimental animals that had been given excess iron in their diet were studied by magnetic resonance (MR) imaging in vivo and by magnetic resonance (MR) spectroscopy in vitro. Hepatic iron overload in patients with transfusional iron excess was studied by MR imaging, and isolated iron protein fractions were studied in vitro by MR spectroscopy. The spin echo image intensity of livers with iron overload was decreased because of the extreme decreases in T2 compared with normal; T1 was decreased only moderately. The relaxation rates 1/T2 and 1/T1 both showed a linear relationship to hepatic iron levels. Ferritin solutions showed moderate decreases in T2 and mild decreases in T1. The T2 relaxivity of ferritin, which is due to the iron core rather than the apoferritin protein shell, does not appear sufficient to account for the extreme decrease in T2 observed in hepatic iron overload. Low molecular weight cytosol iron is present in lower concentrations than ferritin but potentially has much greater relaxivity and may contribute to the MR findings. These techniques may be useful in other studies of iron metabolism.     

Retinal detachment following laser in situ keratomileusis

OBJECTIVE: To report the clinical characteristics, surgical management and outcome of retinal detachment following laser in situ keratomileusis (LASIK) in myopic patients. PATIENTS AND METHODS: Retrospective review of 10 eyes of 10 myopic patients with retinal detachment who had previously undergone LASIK surgery were analyzed. Included in the study were 7 males and 3 females, aged 22 to 68 years (35.2+/-2.8). RESULTS: Mean spherical equivalent refraction was -10.51+/-3.90 D (ranging from -6.37 D to -17.00 D) before surgery. The time interval between the LASIK procedure and the development of retinal detachment varied from two months to nine months (5.2 +/- 2.78 months). The number of retinal breaks was one in 7 patients, two in 2 patients and three in 1 patient. The type of retinal breaks included 7 patients with horse shoe tears, 1 patient with a retinal hole, 1 patient with a giant retinal tear, and 1 patient with retinal dialysis. Retinal breaks were located anterior to the equator in 9 patients and posterior to the equator in 1 patient. Retinal reattachment was achieved with one operation in 8 eyes (80%) and the remaining 2 eyes required a second surgery for the reattachment of the retina. CONCLUSION: This study suggests the possible association between retinal detachment and LASIK procedure in patients with myopia. Clinicians should be aware of retinal pathology predisposing to retinal detachment in patients undergoing LASIK.     

Corneal iron ring associated with iatrogenic keratectasia after myopic laser in situ keratomileusis

A 23-year-old woman had bilateral myopic laser in situ keratomileusis (LASIK). Two months postoperatively, she reported decreased visual acuity. Biomicroscopic examination revealed a corneal epithelial iron ring around the central keratectasia on both corneas. The appearance of the ring pattern was similar to the iron deposits of the Fleischer ring of keratoconus.     

Gallbladder bile: an experimental study in dogs using MR imaging and proton MR spectroscopy

Magnetic resonance (MR) imaging, proton MR spectroscopy, and biochemical analysis were performed to investigate MR signal intensity (SI) differences between concentrated and dilute gallbladder bile of seven fasting and five sincalide-treated dogs. MR images revealed high SI from bile of fasting dogs and low to medium SI in sincalide-treated dogs when spin-echo (SE) pulse sequences with repetition rates of 0.5 and 2.0 sec were used. Proton MR spectra were similar for fasting and sincalide-treated dogs. In fasting dogs, water content in the bile was slightly lower, and cholesterol, phospholipid, and bile acid concentrations were higher. More than 90% of proton signals in all Fourier transform free induction decay spectra emanated from water molecules, and no lipid proton resonances were detected in Fourier transform SE spectra after tau delays of 7 msec. These results indicate that the differences in SI are caused by alterations in relaxation times of water protons, possibly resulting from the interactions of water protons and macromolecules.     

Evaluation of abdominal trauma by computed tomography

Computed tomography (CT) was used in the evaluation of 100 patients suffering abdominal trauma. The type of trauma was blunt in 78 patients, penetrating in eight, and iatrogenic in 14. Forty per cent of cases had normal CT scans, while 60% showed substantial abdominal or retroperitoneal injuries. Surgery, clinical follow-up, and repeated radiologic examinations confirmed the accuracy of CT, and there were no cases in which medical or surgical management was inappropriately guided by CT. A wide variety of injuries was detected, including 19 splenic, eight hepatic, six pancreatic, 13 renal, 13 retroperitoneal or abdominal wall, and one intraperitoneal. CT has major advantages over plain radiography, radionuclide imaging, and angiography in assessment of trauma-induced injuries.     

“不能解释的躯体症状”患者医患互动的调查

目的探讨以＂不能解释的躯体症状＂就诊于综合医院的患者医患互动的特点,了解影响＂不能解释的躯体症状＂患者医患互动的相关因素。方法在综合医院心身科、中医科、神经内科、妇产科调查以躯体主诉就诊但没有发现器质性原因的患者,纳入标准为躯体形式障碍筛查量表（SOMS）≥9分且排除躯体器质性疾病及精神病性障碍者,收集到研究样本98名。对患者和主治医生分别进行问卷测评,问卷包括：治疗满意度调查、病因及治疗问卷（IPQ）、医院焦虑/抑郁情绪量表（HADS）。结果 42%的患者人均求医次数超过12次,40%的患者认为医生不理解自己;焦虑在界值分（〉9分）以上的患者比例为72.8%,抑郁在界值分（〉9分）以上的患者比例为55.4%;患者认为自己症状最可能的3个病因是情绪问题（70.1%）、过度劳累（68.4%）和年龄增长（61.2%）;患者认为最重要的3个病因是压力及担心（30.6%）,情绪问题（26.5%）,年龄增长（21.4%）;患者对于当前治疗过程的评价,好于医生认为患者对于当前治疗过程的评价,差异具有统计学意义（t=2.82,P〈0.05）;不同科室患者当前治疗满意度和治疗评价的差异有统计学意义（t=3.73,P〈0.05）。结论医患之间对患者病因的认知以及治疗过程满意度有差异;＂不能解释的躯体症状＂患者多伴有明显的焦虑抑郁症状。     

乳腺癌各分子亚型中骨桥蛋白的表达及其临床意义

目的： 研究骨桥蛋白（osteopontin,OPN）在乳腺癌各分子亚型中的表达及其临床意义。 方法： 收集2000年1月至2003年12 月第二军医大学长海医院的99例乳腺癌组织标本,免疫组织化学法检测ER（estrogen receptor）、PR(progesterone receptor)和HER-2（human epidermal growth factor receptor-2）的表达,并据此将乳腺癌患者分为luminal A型、luminal B型、HER-2过表达型和基底细胞样型。免疫组织化学法测定各分子亚型乳腺癌组织中OPN的表达情况,并分析OPN表达与乳腺癌患者临床病理特征的关系。 结果： 根据ER、PR和HER-2的不同表达情况,99例乳腺癌患者中luminal A型45例、luminal B型27例、HER-2过表达型14例、基底细胞样型13例。OPN在luminal A型、luminal B型、HER-2过表达型和基底细胞样型中表达率分别为22.2%、29.6%、71.4%和61.5%,HER-2过表达型和基底细胞样型乳腺癌组织中OPN表达率均高于luminal A型和luminal B型（P<0.01）。OPN低表达的乳腺癌患者生存率高于OPN高表达者,两者差异有统计学意义（P<0.01）。 结论： OPN在基底细胞样型和HER-2过表达型乳腺癌组织中高表达,其表达可作为乳腺癌预后的评估指标之一。