Expression of CD5 on B lymphocytes correlates with disease activity in patients with multiple sclerosis

There is growing evidence that implicates B lymphocytes and their products in the pathogenesis of multiple sclerosis (MS). A subpopulation of B lymphocytes expressing the CD5 antigen are involved in several autoimmune disorders through the release of autoantibodies. In this study, we used three-color flow cytometry to examine the expression of CD5 antigen on B lymphocytes from patients with relapsing-remitting MS, and correlated this expression with features of disease activity and circulating levels of autoantibodies against myelin basic protein. CD5 expression on B lymphocytes was significantly higher in patients with active MS when compared to patients with clinically stable MS or those with inflammatory or noninflammatory neurologic disorders. CD5(+) B lymphocytes from patients with active MS correlated significantly with the number of gadolinium-enhancing MRI lesions, and inversely with disease duration. The expression of CD5 on B lymphocytes in MS patients also correlated with circulating levels antibodies against myelin basic protein. Results presented here indicate that clinically active MS is associated with an expanded population of peripheral CD5(+) B lymphocytes.     

The seroprevalence of Helicobacter pylori and nitric oxide in acne rosacea

BACKGROUND: Acne rosacea is a dermatosis with unknown etiology. Some studies have reported a high prevalence of Helicobacter pylori infection in acne rosacea. Other studies have reported a decrease in the severity of the lesions of acne rosacea after eradication of H. pylori. H. pylori is a Gram-negative bacterium which colonizes the gastric mucosa and increases the synthesis of oxygen radicals, such as superoxide and proinflammatory cytokines. These cytokines have been demonstrated to stimulate the synthesis of the inflammatory species nitric oxide (NO). In this study, we examined the role of NO in the possible effect of H. pylori in acne rosacea. METHODS: Thirty-three acne rosacea patients were included in the study and the control group comprised 20 healthy individuals. The levels of immunoglobulin G antibodies against H. pylori in the serum samples were measured using the enzyme-linked immunoabsorbent assay method. Measurement of nitrate was performed using chemiluminescence in accordance with the method described by Braman and Hendrix (Braman RS, Hendrix SA. Nanogram nitrite and nitrate determination in environmental and biological materials by vanadium(iii) reduction with chemiluminescence detection. Anal Chem 1989; 61: 2715-2718). For statistical analysis, the t-test was used. RESULTS: The seropositivity of H. pylori in acne rosacea patients was found to be high; however, the serum nitrate levels were found to be normal. CONCLUSIONS: The results of the study indicate that the inflammatory species NO, which has been hypothesized to be associated with H. pylori, has no role in the inflammatory mechanism of acne rosacea.     

42例儿童肾脏恶性肿瘤的临床特点及疗效分析

背景与目的肾脏恶性肿瘤是儿童常见的并可治愈的恶性疾病,本文总结了在上海儿童医学中心血液/肿瘤科治疗的肾脏恶性肿瘤患者的临床特点和治疗情况,评估“WT-99”方案的耐受性和疗效。方法自1998年10月至2005年7月,我院血液/肿瘤科收治的初治的肾脏恶性肿瘤患儿42例,按病理类型分成FH组、UFH组和肾肉瘤组,采用“WT-99”方案、采取联合治疗的模式、并根据病理类型进行分期分治。结果至2005年11月1日,35/42例存活(83.3%)并在随访中,3例患儿在缓解期失访,中位随访时间31个月(范围4~85个月)。FH组和肾肉瘤组的5年EFS分别为(87.10±7.24)%(n=32)和(83.33±15.21)%(n=7);UFH组4年EFS为(66.67±27.22)%(n=3)。共5例复发,1例再治后获第二次缓解,2例复发后未治失访,2例死于疾病进展。本组病例无治疗相关性死亡,亦无严重的治疗相关并发症发生。结论“WT-99”方案可有效治疗儿童肾脏恶性肿瘤,并且耐受性良好,值得推广。     

炎列平冲剂治疗慢性非细菌性前列腺炎的临床观察与实验研究

观察炎列平冲剂治疗慢性非细菌性前列腺炎的临床疗效以及实验动物病理形态变化。设治疗组（中药炎列平冲剂）50例，对照组（舍尼通片）30例，以及开放组（炎列平冲剂治疗）50例，疗程2个月。结果：三个组总有效率分别为88.00%、76．67％、88．00％，治疗组、开放组与对照组比较，P＜0．05。小鼠动物实验分为正常组（A）、模型组（B）、中药炎列平大剂量组（C）、中药炎列平小剂量组（D）和舍尼通西药对照组（E）各12只，用药4周后，A组、C组、D组、E组的前列腺湿重均比模型组为轻（P＜0．05－P＜0．01），测血清纤维连接蛋白（FN）值比较，A组、C组、D组均较B组低P＜0．05－P＜0．01，E组与B组相近，P＞0．05；测层粘连蛋白（LN）值比较，A组、C组、D组、E组均较B组低，P＜0．05－P＜0．01。提示炎列平冲剂治疗慢性非细菌性前列腺炎有较好疗效，动物实验也验证其有疗效。     

Evaluation of gingival recession in left- and right-handed adults

Recession is the exposure of the root surface by an apical shift in the position of the gingiva. Several factors have been implicated in the etiology of gingival recession. The aim of this study was to assess the relationship between gingival recession and the hand, right or left, duration, frequency, and technique of tooth brushing in left- and right-handed adults in Erzurum, Turkey. Fifty five left-handed (35 female and 20 male) and 55 right-handed (35 female and 25 male) subjects were included in the study. The left and right hand positions of the subjects were determined by using Oldfield's Edinburg Inventory Index, and they were divided into two groups as left-handed and right-handed. The amount of gingival recession and localization, oral hygiene situations, gingival bleeding, toothbrushing duration, frequency, and techniques of subjects were evaluated. The relationship between the amount of gingival recession and localization and the subjects' hand, duration, frequency and technique of tooth brushing were examined. The data were evaluated with variance analysis and student's t test. The oral hygiene situations in right- and left-handed subjects were determined. On comparing the left-handed subjects with the right-handed ones, it was observed that the left-handed subjects had better oral hygiene than the right-handed. But, this case was not statistically significant (p > .05). In both right-handed and left-handed subjects, women had better oral hygiene than men (p < .01). The rate of gingival recession was found more in the left-handed than in the right-handed (p < .05). In the right-handed subjects, gingival recession was found in the premolar and canine regions of upper right and lower right jaw. A similar result was also observed in the left-handed subjects, because gingival recession was seen on their upper left and lower left jaw. Incisive teeth were affected at the same rate in the left-handed and right-handed. The gingival recession was seen more in maxillary jaw than in mandibular jaw in both groups. A statistically significant relationship between gingival recession and frequency duration, and technique of tooth brushing was found. While the greatest amount of gingival recession was found in horizontal scrub technique, gingival recession increased with increasing tooth brushing duration and frequency. The relationship between gingival recession and hand using in tooth brushing was determined.     

经皮枢椎椎弓根螺钉固定治疗Hangman骨折

[目的]探讨应用经皮枢椎椎弓根螺钉内固定术治疗Hangman骨折的可行性和临床疗效。[方法]应用经皮枢椎椎弓根螺钉固定治疗Ⅰ、Ⅱ型及ⅡA型Hangman骨折患者7例，术前Ⅰ型患者单纯颈围固定，Ⅱ型及ⅡA型患者经颅骨牵引复查X线复位满意后手术，手术所有操作均在C型臂X线机透视下完成。[结果]本纽病例中1例螺钉误入椎管后于次日行螺钉方向校正术，其余6例均无并发症发生，术后随访8～36月，平均18月，7例患者均骨性愈合，神经功能恢复正常，颈椎活动范围接近正常。[结论]经皮枢椎椎弓根螺钉固定术内固定简单，对患者的生理破坏少，创伤小，术后患者恢复快，是治疗Ⅰ型、Ⅱ型及UA型Hangman骨折一种较好的手术方法。     

孕哺期铅暴露对仔鼠海马中生长抑素及学习记忆能力的影响

目的:观察孕哺期铅暴露对仔鼠学习记忆能力及海马中生长抑素(SS)表达的影响。方法:母鼠从孕期第1 d至仔鼠出生第30 d分别饮用去离子水(对照组)、0.05%醋酸铅水(染铅1组)、0.1%醋酸铅水(染铅2组)。Y—迷宫试验用于检测仔鼠的学习记忆能力,应用免疫组织化学的方法测定仔鼠海马中SS阳性神经元数量的变化。结果:染铅组与对照组比较,Y—迷宫试验的错误次数明显增多,有统计学差异(P<0.05)。染铅2组与对照组CA1区(P<0.01)及CA3区(P<0.05)比较SS阳性神经元数目均明显减少,染色变浅,有统计学差异;染铅1组与对照组比较CA1区SS阳性神经元变化有统计学差异(P<0.05),CA3区则无此变化。结论:孕哺期母体铅暴露会损害仔鼠的学习记忆能力,可能与海马组织中SS表达的下降有关,而且海马CA1区对铅损害更敏感。     

Urinary neutrophil gelatinase-associated lipocalin is associated with preeclampsia in a cohort of Turkish women

Purpose: We investigated the optimal cut-off level for urinary neutrophil gelatinase-associated lipocalin (NGAL) in preeclamptic patients to confirm the diagnosis.

Methods: Urinary NGAL concentrations were measured by specific enzyme-linked immunosorbent assay (ELISA).

Results: Patients with preeclampsia had significantly higher urinary NGAL concentrations than controls (mean: 387 ng/ml vs. 188 ng/ml, respectively; P< 0.001). Using a cutoff value 252 ng/ml for urinary NGAL to confirm diagnosis of preeclampsia, sensitivity, and specificity were 92% and 91%, respectively.

Conclusion: Urinary NGAL concentrations were significantly elevated in women with preeclampsia versus normotensive controls.     

Granulocytic sarcoma of the heart: extramedullary relapse of acute myeloblastic leukemia after allogeneic stem cell transplantation successfully treated by chemotherapy alone

We present a case of granulocytic sarcoma (GS) of the heart. A 28-year-old man with relapsed acute myelogenous leukemia (AML-M2) had undergone a non-myeloablative allogeneic peripheral stem cell transplantation. Three years following transplantation, masses were evidenced in his heart by echocardiography but had completely disappeared following a common chemotherapy etoposide, mitoxantrone, ara-C (EMA) regimen for relapsed AML. The involvement of the heart with GS is very rare and this is the first case of extramedullary disease in the heart after allogeneic transplantation. Here we present the case history and related literature has been reviewed.     

Bilateral choroidal infiltration from indolent non-Hodgkin's lymphoma: a rapid course with poor prognosis

A 42-year-old-woman, with a 2 year history of non-Hodgkin's lymphoma suffered sudden bilateral visual loss. This unusual patient presented with an unifocal choroidal tumor in the superionasal quadrant in both eyes. Fluorescein angiography revealed early and late intense subretinal fluorescence. Cytological examination of the anterior chamber and vitreous tap material revealed abnormal lymphocytes compatible with NHL. Diffuse choroidal infiltration was diagnosed and treated with radiotherapy. Radiotherapy did not provide local control and preservation of the vision. Non-Hodgkin's lymphoma can infiltrate to the choroid and radiotherapy may not be efffective in every case.