A reappraisal of appendicitis in the elderly

Historically, appendicitis in the elderly is associated with higher morbidity and mortality. Ninety-six patients over 60 years of age with appendicitis treated over a 10-year period were reviewed. Only 20% presented classically with anorexia, fever, right lower quadrant pain, and an elevated white blood cell count. One third of the patients had greater than 48 hours delay to admission. Objective diagnostic testing was often confusing and unreliable. At the time of admission, only 51% were diagnosed as having possible appendicitis. Eighty-three percent of our patients underwent surgery within 24 hours, and 72% had frank perforation. Thirty-two percent of those surviving developed complications, and 83% of these patients had perforated appendicitis. Complications were twice as likely in patients with perforation. Despite the relatively high morbidity, there were only four deaths in patients with coexistent carcinoma. Because of the later and atypical presentation of appendicitis in this age group, a high index of suspicion and early operation are important in avoiding perforation and subsequent morbidity.     

腰椎峡部裂的CT诊断

目的：回顾性分析腰椎峡部裂的ＣＴ表现并讨论其诊断与鉴别诊断，材料与方法，２３例患先行腰椎侧位扫描定位图像，采用与椎间盘平行的角度，自病变脊椎的上一椎体下缘边续发描至于下椎体上缘，层厚４或５ｍｍ必要时在峡部行２ｍｍ，层厚扫描，结果；２３例中，累及双侧２１例，单侧２例，发生在Ｌ５１６例，Ｌ４７例，ＣＴ表现为同一脊椎关节突间的低密度裂隙，出瑞椎弓根下缘平面，走行不规则，裂隙可宽可窄，表面不光滑。     

血清LSA测定在恶性肿瘤临床诊断中的初步应用

本文根据Svennerholm和蒋谷人等的方法略加改良,测定了蚌埠地区113例正常人,71例恶性肿瘤患者和82例非肿瘤疾病患者血清脂质结合唾液酸(LSA)的含量。正常值为12.4mg/dl(SD=±3.6mg/dl),71例不同肿瘤患者的平均值为28.2mg/dl(SD=±9.7mg/dl),阳性率为88.7％,82例非肿瘤疾病患者的平均值为16.82mg/dl(SD=±5.4mg/dl),假阳性率为17％。方法的灵敏度,重复性(平均CV=3.6％)和回收率(平均回收率=101.4％)测定结果是满意的。本研究的初步结果表明,血清LSA测定对肺癌、白血病、胃癌和食管癌具有一定的临床诊断价值。     

干性型老年黄斑变性60例随访观察

探刊干性型老年黄斑变性（age-related macular deganeration，AMD)的病变发展特征并 寻找监测AMD病情进展的较敏感指标。 方法：用眼底彩色照相和眼底荧光血管造影(FFA)、明视视网膜电囤(ERG)、FM100-hue 色彩试验及视力检查，对60例(111眼)50~80岁、视力≤1.0的干性型AMD患者进行3～74个月(平均30.2个月)的随访观察。 结果：本组68眼经FFA检查、平均25.6个月随访，其中25%的患眼病灶损害有快慢不一的发展．全部111眼视力在平均30.2个月随访中有18%患眼的视力下降2行以下，且与病灶进展相符，FM100-hue 色彩试验的被随访者中，随访2年以后，其总错误分明显的增加(P<0.01)．63眼的明视ERG在随访过程中无明显变化。 结论：大部分干性AMD患眼的病灶损害和视力可以在较长时间内维持稳定。FM100—hue的总错误分可能为监测AMD病情进展的较敏感指标． （中华眼底病杂志，1997，13：150-152）     

CT造影剂碘海醇注射液的制备及动物实验

本文报道了非离子型Ｘ－ＣＴ造影剂碘海醇注射液的制备及动物实验结果。磺海醇的最大吸收波长λ＿（ｍａｘ）为２４４ｎｍ。讨论了温度、浓度对磺海醇溶液粘度的影响：粘度随温度的升高而下降，呈负线型相关；粘度随浓度（Ｃ）升高而激剧升高，与浓度的四次方呈线性相关：Ｖ＿（３７℃）＝４７２．５８９［Ｃ］￣４＋１．１２１（ｒ＝０．９９７７）Ｖ＿（３０℃）＝６６３．８１３［Ｃ］￣４＋１．１５２（ｒ＝０．９９９６）Ｖ＿（２０℃）＝１０８２．９５３［Ｃ］￣４＋１．４３３（ｒ＝０．９９８２）使用该注射液进行狗的造影实验，获得了清晰的造影图像。     

Hereditary characteristics of enzyme deficiency and dermatoglyphics in congenital color blindness

The hereditary characteristics of enzyme deficiency and dermatoglyphics in congenital color blindness (CCB) were studied. We propose that there is a linkage between the two loci on the X-chromosome determining CCB and glucose-6-phosphate dehydrogenase (G6PD), based on our study of a high incidence of G6PD deficiency in 156 male cases with CCB. The CCB gene is closely linked with that of G6PD deficiency from our pedigree investigations. The rise in the frequency of eight or more whorls, the low value of atd angle and the presenting rate of real palmar patterns of the thenar, hypothenar and I, areas presented the hereditary traits of congenital color blindness.     

The electrophysiological effects of dicentrine on the conduction system of rabbit heart.

1. The electrophysiological effects of dicentrine, an aporphine alkaloid isolated from the root of Lindera megaphylla, were examined in the Langendorff perfused rabbit heart and rabbit isolated cardiac cells. 2. Standard electrophysiological characters were measured in the Langendorff perfused rabbit heart (control study) and after 5 min exposure to 1, 3 and 9 microM of dicentrine and during the subsequent recovery phase sequentially (n = 7). The same study protocols were performed in 0.5 to 4.5 microM quinidine (n = 7), 18 to 162 microM procainamide and N-acetylprocainamide (n = 7) for comparison. 3. The results showed that the spontaneously beating heart rate and the sinoatrial (SA) and atrioventricular nodal (AH) conduction time were not significantly affected by dicentrine but were significantly suppressed by the higher doses of quinidine (4.5 microM) and procainamide (162 microM). 4. The His-Purkinje conduction time was significantly increased by the higher dose of dicentrine, quinidine and procainamide. 5. The ventricular repolarization time and its effective refractory period were significantly increased by the higher dose of dicentrine and the other agents. 6. The effective refractory period of the atrium, AV node and His-Purkinje system were also significantly increased by dicentrine and the other agents. 7. A voltage clamp study revealed that the prolongation of atrial action potential duration by dicentrine (9 microM) was associated with a significant inhibition of the transient potassium outward current. As well as inhibition of the transient outward current, a significant inhibition of the sodium inward current by dicentrine was found.(ABSTRACT TRUNCATED AT 250 WORDS)     

蛭弧菌与微生物污染的相互关系探讨

本文在实验室条件下动态观察了蛭弧菌含量与微生物污染的相互关系。结果表明：蛭弧菌含量的增加滞后于水体污染，而污染过后蛭弧菌则可在较长时间内维持较高水平，这一特性在水污染指示中的可能作用值得进一步探讨。     

复治矽肺结核化疗效果观察

我们自１９８０～１９８８年对７９例复治矽肺结核进行化疗。其中绝大多数为慢性纤维化空洞性病例，均经细菌学证实，并由尘肺诊断组认定为矽肺合并结核。本组病例分别以ＫＭ、ＩＮＨ、ＲＦＰ、ＰＺＡ，或ＳＭ、ＩＮＨ、ＲＦＰ、ＥＢ联合，分两阶段治疗１８个月，获痰菌阴转７９．２％，其中ＫＨＲＺ与ＳＨＲＥ组分别为９３．９％与６８．２％（Ｐ＜０．０５）。自疗程结束追踪２～８年，其细菌复阳率分别为６．４５％和１０．０％（Ｐ＞０．１）。并对影响其过去治疗失败的原因及对策进行了讨论。     

Monitoring of serum markers for fibrosis during CCl4-induced liver damage. Effects of anti-fibrotic agents.

Liver fibrosis was induced in rats by repeated peritoneal injections of carbon tetrachloride (CCl4) over a period of 2-11 weeks. Serum procollagen III peptide (SPIIINP), prolidase (SP) and alanine aminotransferase (SALT) levels were monitored during the period of induction. The extent of fibrosis was semi-quantitatively estimated after collagen staining, and the anti-fibrotic effects of 16,16-dimethyl prostaglandin E2 (DMPGE2), colchicine, and zinc sulphate were studied. SPIIINP and SP were increased the first 2 weeks after CCl4 administration and peaked at 6 weeks. Alterations in SPIIINP and SP correlated well to the semi-quantitative histological score of liver sections during the first 6 weeks, and SP was positively related to SPIIINP throughout the whole induction period. DMPGE2 decreased SPIIINP, SP and SALT significantly in addition to a markedly decreased formation of liver collagens. Colchicine had a similar but less dramatic effect, whereas zinc sulphate only reduced SPIIINP without influencing liver damage. In conclusion SPIIINP seems to be a valuable indicator of liver fibrogenesis, and SP may play a limited role in indicating accelerated collagen metabolism in the liver. DMPGE2 obviously inhibited the production of collagens induced by CCl4. Colchicine also had an apparent effect on liver fibrosis, whereas zinc sulphate merely seemed to postpone it.