Papillary adenoma of the prostatic urethra: Report of two cases

Papillary adenoma of the prostatic urethra is a rare cause of hematuria, hemospermia and lower urinary tract obstruction, especially in young adults. We report two cases of papillary adenoma and their endoscopic views. One of the patients had a lesion located on the verumontanum and presented with hematuria, hemospermia and symptoms of lower urinary tract obstruction. The other patient had papillary lesions located in the paramontanal gutter and presented with persistent painless hematuria. The origin of both lesions was proven to be prostatic epithelial differentiation using immunohistochemical identification of prostate-specific antigen. Papillary adenoma is believed to be benign, therefore, both lesions were carefully excised and fulgurated transurethrally.     

双探头SPECT心肌灌注显像中位移伪影的实验研究

目的 探讨双探头SPECT心肌灌注显像时位移伪影的影像特征和识别方法。方法 将心脏模型置于检查床上，与受检患者的心脏方向一致。在图像采集过程中，模型依次沿相当于患者左右、头尾和前后方向分别在不同起始点、对不同帧数作一定距离的位移。结果位移伪影的共同特点是表现为室壁放射性分布不均匀，“热区”与“冷区”交替出现，在短轴上最早出现，且表现最为明显；伪影进一步发展会在水平长轴和垂直长轴上表现为心尖附近放射性稀疏或缺损，出现与相邻室壁伴行且形态相近的“伴影”。结论位移伪影主要表现为室壁放射性分布不均，“热区”与“冷区”交替出现，在短轴图像上易于早期发现。     

The response of red cell hexose monophosphate shunt after sulfhydryl inhibition

In this investigation, we studied the importance of cellular glutathione (GSH) in the hexose monophosphate shunt (HMPS) activity of unstimulated human erythrocytes and the mechanism by which pyruvate stimulates the HMPS. The rate of HMPS activity was measured by the production of radioactive CO2 from 14C-1-glucose or 14C-1-ribose using a vibrating reed electrometer and ionization chamber. HMPS activity was not significantly impaired by N-ethylmaleimide (NEM) in concentrations which bound all red cell GSH. Red cells incubated under carbon monoxide (CO), an experimental condition which eliminates peroxide production, still had HMPS activity which was 44% of the value under air. Pyruvate stimulation of the HMPS was unaffected by doses of NEM which bound all cellular GSH or by incubation under CO. These data indicated that pyruvate stimulation of the HMPS occurs by pathways which do not involve peroxide formation, GSH, or oxygen. This study indicates that sulfhydryl blockade of GSH does not necessarily inhibit HMPS activity and that HMPS activity in red cells may respond to reactions not linked directly to glutathione reduction.     

老年冠心病合并糖尿病患者雷帕霉素洗脱支架置入术后5年随访研究

目的探讨老年冠心病合并糖尿病患者经皮冠状动脉介入（PCI）置入雷帕霉素洗脱支架（SES）治疗的远期疗效。 方法回顾性随机入选2003年1月至2007年12月住院期间老年冠心病合并糖尿病患者行PCI 100例,并入选同时期100例无糖尿病的冠心病患者行PCI为对照组。随访5年,随访包括心绞痛复发、死亡、心肌梗死、卒中和再次血运重建的主要不良心脑血管事件。结果 两组支架术成功率均为100%。随访率100%,随访5年,糖尿病组与非糖尿病组术后并发症发生率（8.0%、7.0%）、卒中发生率（5%、3.0%）、心源性死亡率（0%、0%）差异无显著性（均为ρ〉0.05）。再次血运重建率（30.0%、14.0%）、非致死性心肌梗塞（6.0%、2.0%）心绞痛复发率（42%、20%）、全因死亡率（10%、2.0%）糖尿病组高于非糖尿病组;但心源性病死率均为0%。结论：老年患者选择性冠脉内置入药物洗脱支架安全,成功率高,远期疗效尚好,但糖尿病仍是远期不良预后的独立预测因素。     

Childhood Pityriasis Rosea

Abstract: Pityriasis rosea (PR) is an acute, self‐limiting papulosquamous disorder of unknown etiology. Published studies of childhood PR are scarce and most are reviews. The aim of this study was to determine the demographic and clinical features of childhood PR.     

宁夏贝母化学成分的研究

从宁夏贝母(Frdillapia taipaiensis P. Y. Li var. ningxiaensis Y. K. Yang et. J. K. Wu)的鳞茎中分得六个异甾体生物碱成分,鉴定为宁贝素(taipaienine,Ⅰ)、川贝酮(chuanbeinone,Ⅱ)、西贝素(imperialine,Ⅲ)、贝母乙素(verticinone,Ⅳ)、贝母辛(peimissine,Ⅴ)和异贝母甲素(isoverticine,Ⅵ).其中T为一新C-去甲-D-高甾生物碱。应用波谱分析(IR,MS,¹HNMR和¹³CNMR)等确定了它们的化学结构。     

Congenital middle-ear deafness: CT study

Computed tomography (CT) was used to study 25 patients with congenital conductive hearing loss and normal external auditory canals. Deformities were subdivided according to ossicular, fenestral, and cholesteatomatous origin. Isolated ossicular deformities were found in 14 patients (five bilateral), cholesteatoma in eight, oval-window nondevelopment (with ossicular deformity) in one, and normal studies in two (congenital stapes fixation at the level of the annular ligament). Ossicular deformities may be subdivided into incudostapedial disconnections into incudostapedial disconnections (most common), malleoincudal fixations, and stapes fixations. Most are due to developmental anomaly of the first or second branchial arch. The stapes has a dual origin (second arch and otic capsule). A cholesteatoma is defined as congenital only if there is no history of otitis and the tympanic membrane is intact. In this series, six were in the middle ear proper, and two were within the attic beyond otoscopic view. Their CT appearance, with one exception, was essentially identical to that of acquired lesions.     

Social characteristics of urban cafe guests in Norway

Which factors may influence the number of hours spent per week in cafes, and the amount of alcohol consumed in licensed premises, by urban cafe guests in Norway? In 1991 a comprehensive questionnaire survey was undertaken among 1053 visitors to 41 licensed cafes in Oslo, Norway. The five most important predictors of time spent in cafes were: household situation (β=0.20), occupation (β= 0.18), personal economic resources and sex (both β= 0.15) and age (β= 0.11). These factors were also significant predictors of the number of days during the past 4 weeks the respondents had drunk jour glasses or more of alcohol in cafes. Men, people living with others, people with poor economic resources and people not engaged in paid employment or education were the ones who reported spending the most hours per week and the most episodes of “heavy” drinking in cafes during a 4-week period. Visiting and drinking in cafes may be a way of structuring everyday life.     

The relationship of caretaker anxiety to children's asthma morbidity and acute care utilization.

OBJECTIVES: This study examined self-reported psychological distress in caretakers of inner-city children with asthma and examined its association to disease severity, as measured by day and night symptoms, and to acute care utilization for asthma. METHOD: We enrolled 193 English and Spanish-speaking caretakers (86% were mothers) of 2- to 12-year-olds who had at least one asthma hospitalization at a large urban medical center. They completed an interview asking about children's asthma symptoms and acute care utilization (provider visits, emergency department visits, hospitalizations for asthma) and a 29-item psychiatric symptom inventory. National guidelines criteria were used to classify asthma severity into three categories based on caretaker report of day and night symptoms in the past 4 weeks. These were: moderate-severe persistent (37%), mild persistent (27%), and mild intermittent (35%) asthma. RESULTS: Caretakers of children who were reported as having moderate-severe persistent asthma symptoms exhibited higher anxiety than caretakers reporting milder symptoms in their children, but symptom severity was unrelated to depression, anger, cognitive disturbance, or overall distress in caretakers. Three measures of acute care utilization in the last 6 months increased with reported symptom severity, but they were not associated with caretaker distress. CONCLUSIONS: Providers treating children with asthma should consider the potential importance of caretaker reports of daily symptoms both for the child's physical functioning and for parental anxiety.