肝脏原发黏膜相关淋巴组织结外边缘区淋巴瘤及肝脏假性淋巴瘤的临床病理特征北大核心CSCD

目的 探讨肝脏原发黏膜相关淋巴组织结外边缘区（MALT）淋巴瘤和肝脏假性淋巴瘤的临床病理特征、鉴别诊断.方法 收集2012年1月至2017年3月就诊于南京医科大学第一附属医院的3例肝脏原发MALT淋巴瘤和2例肝脏假性淋巴瘤患者资料,行HE和免疫组织化学EnVision法染色观察组织学形态,采用原位杂交法检测EB病毒编码小RNA,采用荧光原位杂交（FISH）技术检测MALT1基因,采用免疫球蛋白（Ig）基因重排检测技术分析克隆性基因重排情况,并复习相关文献.结果 3例MALT淋巴瘤,肿瘤结节状浸润汇管区,浸润及包绕周围肝组织并融合成结节或片状,多量小胆管陷入、散布其间伴淋巴上皮病变.瘤细胞围绕增生的淋巴滤泡,主要为中心细胞样和单核样B细胞,其中1例可见簇状上皮样组织细胞.瘤细胞CD20和PAX5阳性,不表达CD5、CD23、CD10、bcl-6及cyclin D1.2例肝脏假性淋巴瘤,病灶呈境界清楚的孤立性结节,其中1例可见部分纤维包膜.小胆管仅见于病灶周边,且缺乏淋巴上皮病变.淋巴组织增生以淋巴滤泡增生为主,缺乏明显异型性和单核样B细胞形态.免疫组织化学染色示增生的淋巴组织由B细胞和T细胞混合.Ig基因重排检测发现,3例肝脏原发MALT淋巴瘤呈单克隆性B细胞增生,而在2例假性淋巴瘤示多克隆性增生.FISH检测发现2例MALT淋巴瘤存在MALT1基因断裂.所有病例EBER原位杂交均为阴性.结论 肝脏原发MALT淋巴瘤和假性淋巴瘤均属肝脏罕见的淋巴组织增生性病变,两者具有重叠的组织学形态及免疫表型特征,互为首要鉴别诊断.综合分析组织形态、免疫表型和基因重排有助于区分两者.     

胸腺原发黏膜相关淋巴组织淋巴瘤及淋巴上皮性涎腺炎样胸腺增生的临床病理分析

目的探讨胸腺原发黏膜相关淋巴组织(mucosa associated lymphoid tissue,MALT)淋巴瘤和淋巴上皮性涎腺炎(lymphoepithelial sialadenitis,LESA)样胸腺增生的临床病理学特征、两者相关性及鉴别诊断。方法分析3例胸腺MALT淋巴瘤和1例LESA样胸腺增生的临床病理学和免疫表型特征,并复习相关文献。结果 3例胸腺MALT淋巴瘤,其中2例伴Sj9gren综合征;镜下胸腺正常结构损毁,增生的淋巴滤泡间可见肿瘤性淋巴样细胞浸润伴明显的淋巴上皮病变,以中心细胞样和单核样B细胞形态为主。瘤细胞表达CD20、PAX-5和BCL-2,其中1例伴显著浆细胞分化者Lambda轻链限制性表达。3例胸腺MALT淋巴瘤免疫球蛋白(immunoglobulin,Ig)基因检测均示单克隆性重排。LESA样胸腺增生镜下胸腺分叶状结构大体尚存,可见包含增生滤泡的丰富淋巴细胞浸润,胸腺上皮增生伴显著淋巴上皮病变,未见有单核样B细胞形态。免疫组化染色示增生淋巴组织由B和T细胞混合;Ig基因重排检测示多克隆性增生。结论 LESA样胸腺增生和胸腺MALT淋巴瘤均是胸腺少见的淋巴增生性病变,两者具有相似的组织学和免疫表型特征;结合基因重排技术详细分析两者的鉴别要点,有助于鉴别。     

膀胱原发结外黏膜相关淋巴组织边缘区淋巴瘤4例临床病理分析

目的探讨膀胱原发黏膜相关淋巴组织(mucosa-associated lymphoid tissue,MALT)边缘区淋巴瘤的临床病理学特征、诊断及鉴别诊断、治疗及预后。方法收集4例膀胱MALT淋巴瘤,行HE和免疫组化EnV ision两步法染色观察。应用原位杂交和基因重排技术检测4例膀胱MALT淋巴瘤,并复习相关文献。结果 4例膀胱MALT淋巴瘤中3例女性患者平均年龄60岁,1例男性患者44岁。所有病变均见肿瘤性淋巴样细胞弥漫或结节性浸润,以中心细胞样细胞和单核样B细胞构成为主,其中2例可见残存的增生淋巴滤泡伴滤泡殖入现象。淋巴上皮病变仅累及3例伴腺性膀胱炎患者中的腺样结构,而表面尿路上皮则缺乏。免疫表型:瘤细胞均表达CD20、Pax-5和BCL-2,未见轻链限制性反应。4例膀胱MALT淋巴瘤EBER原位杂交均阴性,其中3例免疫球蛋白基因检测提示单克隆性重排。结论膀胱MALT淋巴瘤属于罕见的膀胱原发低度恶性B细胞淋巴瘤,淋巴上皮病变的发生与腺性膀胱炎存在有关,但并非是病理诊断所必须。在膀胱镜小标本活检时,基因检测B细胞的单克隆性有助于诊断。     

眼眶原发性MALT淋巴瘤临床病理观察

目的 探讨眼眶原发性黏膜相关淋巴组织结外边缘区B细胞淋巴瘤(MALT淋巴瘤)临床病理特点及影响预后因素。方法 复习7例眼眶原发性MALT淋巴瘤临床病理资料及病理切片,并用免疫组化S—P法重新标记瘤细胞。结果 5例位于泪腺及结膜,2例位于眼肌,7例均为IE期。瘤细胞以边缘区B细胞为主,混有少量浆细胞及母细胞化的淋巴细胞。位于泪腺及结膜者可见淋巴上皮病变及生发中心植入现象。瘤细胞表达CD45、CD20、IgM、bcl-2及单一的轻链,CD3、CD5、CD10、cyclin D1、CK均阴性。7例均作手术治疗;1例辅以放疗,2例结合化疗。7例随访4～139个月,均存活。结论 眼眶原发性MALT淋巴瘤好发于泪腺及结膜,预后与临床分期有关,与治疗方法关系不大。     

肺黏膜相关淋巴组织边缘区B细胞淋巴瘤及良性淋巴组织增生性疾病的临床病理分析

目的 研究肺原发性黏膜相关淋巴组织边缘区B细胞(MALT)淋巴瘤及良性淋巴组织增生性疾病的临床病理形态、免疫组织化学表型和B细胞重链基因重排,比较肺MALT淋巴瘤和良性淋巴组织增生性疾病的差异.方法 回顾性的分析原发性肺MALT淋巴瘤13例,7例肺良性淋巴组织增生性疾病资料.对标本行常规HE染色,EnVision免疫组织化学染色(抗体包括AE1/AE3、CD20、CD79α、CD3、CD5、CD10、CD21、bel-2、bcl-6、cyclinD-1)及免疫球蛋白重链IgH基因重排检测.结果 13例肺MALT淋巴瘤,细胞成分多样,分别由不同比例的小淋巴细胞样细胞、中心细胞样细胞、单核样B细胞组成,常伴有浆细胞分化.肿瘤细胞以弥漫性和滤泡边缘区排列为主,常见反应性淋巴滤泡和滤泡中心的植入.肿瘤细胞呈串珠状直接侵犯肺泡间隔和沿支气管血管束向周边及肺膜扩散.MALT淋巴瘤中,均未见坏死.9例可见肿瘤细胞侵犯血管壁,6例可见胸膜累及,2例肺门淋巴结侵犯.9例肺MALT淋巴瘤可见淋巴上皮样病变,免疫组织化学显示上皮细胞内的淋巴细胞CD20阳性,CD3阴性.7例肺良性淋巴组织增生性疾病,2例可见淋巴上皮样病变,免疫组织化学显示,其淋巴上皮样病变内的淋巴细胞,部分CD20阳性,部分CD3阳性.9例肺MALT淋巴瘤进行了免疫球蛋白重链IgH基因重排,8例阳性;7例良性淋巴组织增生性疾病均为阴性.结论 肺MALT淋巴瘤在细胞组成和排列上与其他部位结外MALT淋巴瘤相同,肿瘤细胞呈串珠状直接侵犯肺泡间隔和沿支气管血管束向周边及肺膜扩散.在肺内淋巴上皮样病变常见于MALT淋巴瘤,并有助于诊断,但并非其特异性病变,一些肺的反应性淋巴组织增生也可出现,用免疫组织化学有助于区别两种病变.免疫球蛋白重链IgH基因重排可以帮助鉴别肺MALT淋巴瘤和良性淋巴组织增生性疾病.     

肺原发性黏膜相关淋巴组织结外边缘区淋巴瘤5例临床病理分析

目的 探讨肺原发性黏膜相关淋巴组织结外边缘区(primary pulmonary extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue, MALT)淋巴瘤的临床病理学特征、诊断及鉴别诊断、治疗及预后。方法 回顾性分析5例肺原发性MALT淋巴瘤的临床病理学特征、免疫表型、治疗及预后等,并复习相关文献。结果 5例患者年龄42～59岁,中位年龄47岁,无相关肺部症状;CT示片状团块或斑片状高密度影。5例镜下形态相似,瘤细胞弥漫浸润肺组织,形如单核细胞样细胞和小淋巴细胞,其间散在分布少许免疫母细胞及中心母细胞样细胞,可见淋巴上皮病变,CD20、CD79a均呈阳性,CD3、CD5、Cyclin D1、CD10、BCL-6和CD30均阴性,Ki-67增殖指数为3%～20%。5例均行胸腔镜下肺叶或肺结节切除术,术后恢复良好,未见复发及淋巴结累及。结论 肺原发性MALT淋巴瘤于惰性淋巴瘤,临床易误诊,患者预后良好,诊断依赖于病理检查。     

胸腺黏膜相关淋巴组织结外边缘区淋巴瘤9例临床病理分析

目的探讨胸腺黏膜相关淋巴组织结外边缘区(extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue, MALT)淋巴瘤的临床病理学特征、免疫表型、分子特征及鉴别诊断。方法回顾性分析9例胸腺MALT淋巴瘤的临床资料、病理学形态、免疫表型及分子遗传学特征,结合文献对其临床病理学特点进行探讨。结果 9例胸腺原发MALT淋巴瘤患者年龄35～72岁(平均50岁),男性2例,女性7例。5例患者体检发现纵隔占位,2例表现为胸痛、咳嗽及四肢面部浮肿等症状。4例患者既往伴有自身免疫性疾病。镜下肿瘤主要由小到中等的淋巴细胞样细胞构成,弥漫浸润生长,其内见大小不等的囊肿形成,囊腔内可见胆固醇结晶沉积,瘤细胞侵犯囊壁及胸腺小体而形成淋巴上皮病变。免疫表型:9例肿瘤细胞均表达B细胞标志物(CD20、CD79α、Pax-5),基因重排均显示单克隆性B细胞增生,FISH检测未见MALT1基因断裂。结论胸腺MALT淋巴瘤较少见,属于低度恶性肿瘤,多数伴有自身免疫性疾病。单一形态的瘤细胞结合免疫表型及基因重排可明确诊断,警惕漏诊或过诊。手术完整切除后密切随访即可。     

小B细胞恶性淋巴瘤形态学和免疫组织化学研究

目的：探讨各种小B细胞恶性淋巴瘤的形态学、免疫表型特征及其鉴别诊断。方法：对15例小淋巴细胞性淋巴瘤（SLL）、3例淋巴浆细胞性淋巴瘤（LPL）、36例滤泡性淋巴瘤（FL）、25例套细胞淋巴瘤（MCL）、7例淋巴结边缘区B细胞淋巴瘤（MZL）和30例黏膜相关淋巴细胞型结外边缘区B细胞淋巴瘤（MALT－MZL）的石蜡切片进行HE形态学观察和CD5、CD10、CD23和cyclinD1等抗体的免疫组织化学分析。结果：各种小B细胞恶性淋巴瘤在组成细胞和组织结构上各具特征；免疫表型：SLL表达CD5（82％）和CD23（80％），FL表达CD10（87％），MCL表达cyclinD1（84％）和CD5（80％），MZL／MALT－MZL和LPL均不表达CD5、CD10、CD23和cyclinD1。结论：各种小B细胞恶性淋巴瘤均是独立疾病，各具形态学和免疫表型特征，结合HE形态学观察和CD5、CD10、CD23、cyclinD1等免疫组化分析有助于正确诊断和鉴别诊断。     

桥本甲状腺炎合并甲状腺原发性非霍奇金淋巴瘤14例临床病理观察

目的探讨桥本甲状腺炎(Hashimoto’s thyroiditis,HT)合并甲状腺原发性非霍奇金淋巴瘤(primary thyroid noHodgkin’s lymphoma,PTNHL)的临床病理学特征。方法回顾性分析14例HT合并PTNHL患者的临床资料、病理学及免疫表型,并复习相关文献。结果 14例HT合并PTNHL患者中女性11例,男性3例,年龄36~77岁,中位年龄61岁。患者均有颈部肿块病史,肿块近期迅速增大,B超示甲状腺低回声团块或混合性团块。术后病理检查示14例患者均在HT基础上合并了PTNHL,5例为弥漫大B细胞淋巴瘤(diffuse large B-cell lympgoma,DLBCL);5例为黏膜相关淋巴组织结外边缘区(mucosa-associated lymphoid tissue,MALT)淋巴瘤;1例为MALT淋巴瘤合并DLBCL;1例为滤泡性淋巴瘤;1例为MALT淋巴瘤伴浆细胞分化;1例为外周小T细胞淋巴瘤;免疫表型:14例CD45均阳性,CKpan、TG、EMA残留甲状腺滤泡上皮阳性,13例CD20弥漫阳性,1例CD3弥漫阳性。结论 HT合并PTNHL临床罕见,好发于中老年女性,临床表现缺乏特异性,易误诊、漏诊,确诊依赖术后病理组织学检查及免疫表型。     

黏膜相关淋巴组织淋巴瘤诊断进展

黏膜相关淋巴组织(mucosa-associated lymphoid tissue,MALT)淋巴瘤是起源于生发中心后边缘区记忆B细胞,常发生于黏膜获得性淋巴组织的淋巴瘤。MALT淋巴瘤组织学形态多样,缺乏特异性的免疫表型,诊断较困难,目前主要采用排除性的诊断方法。随着分子病理学技术快速发展,鉴别诊断手段日益增多,如采用PCR技术检测MALT淋巴瘤Ig基因重排,荧光原位杂交技术检测MALT淋巴瘤中Ig H基因断裂以及t(11;18)(q21;q21)、t(1;14)(p22;q32)、t(14;18)(q32;q21)、t(3;14)(p14;q32)4种独特的染色体改变等。该文对MALT淋巴瘤的病因学、临床病理学特征、遗传学特征等研究进展进行综述,探讨其对MALT淋巴瘤诊断及鉴别诊断、治疗和预后判断的临床意义。     

Schizophrenia in a North Swedish geographical isolate, 1900–1977. Epidemiology, genetics and biochemistry

Over 200 schizophrenic patients belonging to three major and interrelated pedigree complexes have been investigated over the past 30 years in a North Swedish geographically isolated population, presently numbering about 6,000. An intensive investigation of a number of biochemical correlates and genetic markers in a few selected families belonging to one of the major pedigrees has indicated new strategies for the current research program.
Schizophrenia, as defined operationally, is significantly associated with decreased activities of two enzymes (1) blood platelet monoamine oxidase, (2) plasma dopamine-β-hydroxylase, and (3) with the genetic marker Gc² (group specific antigen). Both enzymes are subject to genetic variation. A positive score for linkage between schizophrenia and low plasma DBH activity has been calculated, but, so far, available data are insufficient for discrimination between linkage and partial contribution of genetically controlled low plasma DBH to the pathogenesis of the disease. Alternatively, both mechanisms could be involved.
As a model for continued research, schizophrenia is explained as based on a double dominant-recessive genotype (Aabb), representing a vulnerability which in about 50 % of cases develops into clinical schizophrenia. It is suggested that the dominant mutation (A) operates on or affects MAO activity, and that the recessive genotype (bb) is instrumental in low variates of DBH activity and very likely such variates within the normal range of physiological variation. Moreover, it is suggested that the combined effects of MAO- and DBH-reduced efficiency on the metabolism of e.g. dopamine could be an essential pathogenic mechanism for the schizophrenic illness which is segregating in this population.     

Renal dysplasia and asplenia in two sibs

A family is reported in which two sibs, one male and the other female, both died within 24 hours of birth with enlarged polycystic kidneys. Postmortem histology in the second child showed gross renal dysplasia. In both children the pancreas was enlarged, nodular and cystic but the liver appeared macroscopically normal. In the second child, histological examination confirmed pancreatic fibrosis with cystic dilation of ducts, but showed portal fibrosis with bile duct proliferation in the liver.
This combination of findings is very reminiscent of those in a girl and her brother reported by Ivemark et al. (1959). The children reported here also showed absence or hypoplasia of the spleen, cardiac anomalies and other features of the Ivemark syndrome (Ivemark 1955), a quite different, usually sporadic, congenital disorder. It is suggested that the children described here have a distinct lethal congenital disorder, probably inherited in an autosomal recessive manner.     

The dominant diseases of modernized societies as omega-3 essential fatty acid deficiency syndrome: Substrate beriberi

About 1900, modern food selection and processing caused widespread $\text{epidemics}$ of the B vitamin deficiency diseases of beriberi and pellagra which, for genetic reasons, often expressed as different diseases ranging from bowel and heart disease to dermatoses and psychoses. But the B vitamins merely help convert essential fatty acids (EFA) into the prostaglandin (PG) tissue regulators and it now turns out that, through hydrogenation, milling and selection of w3-poor southern foods, we have also been systematically depleting, by as much as 90%, a newly discovered trace Nordic EFA (w3) of special importance to primates and sole precursor of the PG3(4) series, even as a concurrent fiber deficiency increases body demand for EFA. Since substrate EFA is processed by many B vitamin catalysts, an EFA deficiency will mimic a $\text{panh}$ypovitaminosis B, i.e., a mixture of $\text{substrate}$ beriberi and $\text{substrate}$ pellagra resembling vitamin beriberi and pellagra but exhibiting as even more diverse $\text{endemic}$ disease. This would consitute a second stage of the Modern Malnutrition and explain why some workers now hold the dominant diseases of modermized societies to be new, nutritionally based, pellagraform yet lipid-related and to range, once again, from heart disease to psychosis. It is an assumption that our dominant diseases are unrelated to each other or are merely revealed by our diagnostic acumen and therapeutic success; and that hydrogenating millions of tons of food oils annually, to destroy the rancidity producing w3-EFA, is safe for $\text{primates}$. Extensive beriberiform disease is reported here in 32 typical cases taken from medical practice which responds strikingly to linseed oil supplements (60% w3-EFA) in confirmation of identical results in Capuchins.     

'Very sore nights and days': the child's experience of illness in early modern England, c.1580-1720

Sick children were ubiquitous in early modern England, and yet they have received very little attention from historians. Taking the elusive perspective of the child, this article explores the physical, emotional, and spiritual experience of illness in England between approximately 1580 and 1720. What was it like being ill and suffering pain? How did the young respond emotionally to the anticipation of death? It is argued that children’s experiences were characterised by profound ambivalence: illness could be terrifying and distressing, but also a source of emotional and spiritual fulfilment and joy. This interpretation challenges the common assumption amongst medical historians that the experiences of early modern patients were utterly miserable. It also sheds light on children’s emotional feelings for their parents, a subject often overlooked in the historiography of childhood. The primary sources used in this article include diaries, autobiographies, letters, the biographies of pious children, printed possession cases, doctors’ casebooks, and theological treatises concerning the afterlife.     

Guidelines for the Validation and Use of Immunoassays for Determination of Introduced Proteins in Biotechnology Enhanced Crops and Derived Food Ingredients

Recent advancements in agricultural biotechnology have created a need for analytical techniques to determine introduced proteins in crops enhanced through modern biotechnology techniques. These proteins are expressed in plant tissues and may be present in food ingredients. Immunoassays are ideally suited for protein detection and may be used as both quantitative and threshold methods. Microplate ELISA and lateral flow devices are two of the most commonly used immunoassay formats for agricultural biotechnology applications. This paper provides general background information and a discussion of criteria for the validation and application of immunochemical methods to the analysis of proteins introduced into plants and food ingredients using biotechnology methods. It is the result of a collaborative effort of members of the Analytical Environmental Immunochemical Consortium. This collaborative effort represents the combined expertise of several organizations to reach consensus on establishing guidelines for the validation and use of immunoassays. Further, the paper offers developers and users a consistent approach to adopting the technology as well as aid in producing accurate and meaningful results.     

HLA in North Colombia Chimila Amerindians

HLA-A,-B,-C,-DRB1 and -DQB1 alleles have been studied in Chimila Amerindians from Sabana de San Angel (North Colombian Coast) by using high resolution molecular typing. A frequent extended haplotype was found:HLA-A*24:02-B*51:10-C*15:02-BRB1*04:07-DQB1*03:02 (28.7%) which has also been described in Amerinndian Mayos Mexican population (Mexico, California Gulf, Pacific Ocean). Other haplotypes had already been found in Amerindians from Mexico (Pacific and Atlantic Coast), Peru (highlands and Amazon Basin), Bolivia and North USA. A geographic pattern according to HLA allele or haplotype frequencies is lacking in Amerindians, as already known. Also, five new extended haplotypes were found in Chimila Amerindians. Their HLA-A*24:02 high frequencies characteristic is shared with aboriginal populations of Taiwan; also, HLA-C*01:02 high frequencies are found in New Zealand Maoris, New Caledonians and Kimberly Aborigines from Australia. Finally, this study may show a model of evolutionary factors acting and rising one HLA allele frequency (-A*24:02), but not in others that belong to the same or different HLA loci.     

Ultracryotomy: development and application (with examples from the yeast cytology) (author's transl)

The preparation steps usually necessary for obtaining ultrathin frozen sections of biological material (chemical prefixation, enclosing, cryoprotective treatment, freezing, sectioning, and post-staining the sections for transmission electron microscopy) are submitted to a critical analysis. The application of cryo-ultramicrotomy, in particularly for cytochemical purposes, is reviewed. Fundamental considerations of chemical prefixation and poststaining are supported by examples from yeast cytology. Furthermore, the efficiency of the cryo-ultramicrotomy (electron optical resolution of ultrastructural details) is demonstrated on yeast cells and protoplasts.     

The universal muscular chamber. A basic unit of the genitourinary, cardiovascular, gastro-intestinal, skeletal, cutaneous, respiratory and other systems, endocameral hypertension; and spasm, the key to their idiopathic diseases and arthropathies

Starting with the integument, we see many organs are contractile sacs or multiples thereof, which tubes or bags constitute the major part of the entire body. Recognition of this basic unit and its characteristics sheds new light, individually and collectively, on many disorders previously considered unrelated. Muscular tears and perforations develop in the walls of these chambers, being no way peculiar to those organs, wherein, hydrochloric acid occurs. So, it is not necessary to explain the absence of excessive acid from patients who exhibit holes in the gastric, uterine, aortic, duodenal, rectal, pulmonary, retina, and other walls. Muscle, not acid is the great common factor relating idiopathic disorders in the gastrointestinal tract to each other and to similar diseases in other systems. When the units are linked together, the lesions tend to appear as arthropathies, i.e. at the joints. Rephrasing common-place observations, frees us from conventional, conceptual cul-de-sacs. An observation is only as good as its interpretation, so all possibilities must be considered, otherwise, we will remain blinded by our misconceptions.     

Der Einfluß von Nahrungsmitteln und Rauchen auf die klinisch-chemische Diagnostik von Phäochromozytom,Neuroblastom und Karzinoid-Syndrom

Zusammenfassung Der Einfluß von verschiedenen Nahrungsmitteln auf Methoden zur Bestimmung von Adrenalin (AD), Noradrenalin (NA), Vanillinmandelsäure (VMS), Metanephrinen (MN), Homovanillinsäure (HVS) und 5-Hydroxyindolessigsäure (5-HIE) im 24 h-Harn zur Diagnose des Phäochromozytoms bzw. Karzinoid-Syndroms wurde untersucht. Die in die Untersuchung einbezogenen Nahrungsmittel waren: Tee, Kaffee, Mandeln, Ananas, Käse, Walnüsse, Vanillepudding, Bananen, Tomaten und Milchschokolade. Außerdem wurde der Einfluß des Zigarettenrauchens auf die Bestimmung von AD, NA, VMS und MN untersucht.Walnüsse führten zu einer starken Erhöhung der 5-HIE-Ausscheidung. Bananen erhöhten die Ausscheidung von AD, NA, VMS, MN und 5-HIE. Kaffee und Ananas bewirkten eine geringe Zunahme der MN-Werte. Rauchen von 20–30 Zigaretten/Tag beeinflußte keine der vier Variablen.Wenn die beschriebenen Methoden benutzt werden, sollte lediglich auf den Verzehr von Bananen und Walnüssen vor und während der Harnsammelperioden verzichtet werden, da die oberen Normgrenzen im Harn überschritten werden könnten. Ein Verzicht auf Kaffee und Ananas in normalen Mengen ist nicht erforderlich. Es besteht kein Anlaß, weiterhin die bisherigen umfangreichen Restriktionen der übrigen Nahrungsmittel beizubehalten.