促红细胞生成素对大鼠脊髓损伤后caspase-3表达及神经细胞凋亡的影响

目的通过观察重组人红细胞生成素（recombinant human erythropoietin，rHu—EPO）对大鼠急性脊髓损伤后Caspase-3表达及凋亡的影响，探讨其脊髓保护的作用机制。方法60只SD大鼠随机分成3组：假手术组，对照组和治疗组，每组20只，采用Allen’s打击法制成急性脊髓损伤模型。观察药物治疗前后大鼠的神经功能行为，用免疫组化染色检测caspase-3表达，原位脱氧糖核苷酸末端转移酶介导的缺口末端标记法（Tunel法）标记凋亡细胞；比较各组间差别。结果HE，免疫组化染色示EPO治疗组脊髓损伤程度小，神经元细胞破坏少；caspase-3在各时相点的表达明显降低，8h和7dTunel标记凋亡阳性细胞显著减少；大鼠神经功能恢复显著优于对照组（P〈0．01）。结论EPO能下调Caspase-3表达，抑制脊髓神经细胞凋亡，对继发性脊髓损伤有保护作用。     

大鼠脊髓缺血再灌注损伤后神经细胞凋亡及Caspase-1、Caspase-3的表达

目的观察大鼠脊髓缺血再灌注损伤后神经细胞凋亡及Caspase-1、Caspase-3的表达。方法 48只成年健康Wistar大鼠,采用Naslund腹主动脉阻断法制作脊髓缺血再灌注损伤模型。随机分为空白对照组(n=6)、假手术组(n=6)和损伤组(n=36),观察脊髓缺血再灌注损伤后,脊髓的病理变化、细胞凋亡及Caspase-1、Caspase-3的表达变化的规律。结果观察脊髓缺血再灌注损伤后Caspase-1阳性细胞在损伤后12h表达明显,1d损伤区域及周边出现表达高峰。Caspase-3阳性细胞在损伤后12h表达明显,2d损伤区域及周边出现表达高峰。TUNEL阳性细胞也在脊髓损伤后12h表达明显,2d出现表达高峰。空白对照组、假手术组:Caspase-1、Caspase-3免疫组化少有表达,少见TUNEL阳性细胞。结论脊髓缺血再灌注损伤后存在神经细胞凋亡,Caspase-1、Caspase-3均参与损伤的调节。     

大鼠急性脊髓损伤后神经细胞凋亡及Fas和Cathepsin D的表达

目的探讨大鼠急性脊髓损伤后神经细胞凋亡及Fas、Cathepsin D的表达。方法 78只成年健康Sprague-Dawley(SD)大鼠,使用改良Allen氏法制作急性脊髓损伤模型,采用HE染色、原位末端脱氧核糖核酸转移酶介导DUTP标记法(TUNEL)对损伤脊髓组织进行标记;免疫组化方法测定Fas、Cathepsin D的表达变化。结果正常组、假手术组TUNEL、Fas、Cathepsin D阳性细胞较少见,损伤组TUNEL阳性细胞8 h明显增多,3 d达到高峰,7 d明显降低。Fas阳性表达的细胞也在8 h开始增高,3 d达到高峰,7 d下降。Cathepsin D阳性细胞数则在脊髓损伤后3 d明显增多,5 d达高峰,至观察时间点结束,未有明显衰减。结论 Fas、Cathepsin D均参与了脊髓继发性损伤的调节。     

HIF-1α、VEGF与大鼠继发性脊髓损伤的相关性研究

建立大鼠脊髓损伤动物模型,分析血管内皮生长因子（VEGF）及缺氧诱导因子-1α（HIF-1α）表达与脊髓损伤的相关性及二者之间的相关性,探讨其在继发性脊髓损伤发生发展过程中的作用。方法 健康成熟Wistar大鼠144只,雌雄不限,体质量180 ～ 220 g。随机分为脊髓损伤组和假手术组。假手术组大鼠行椎板切除术,脊髓损伤组大鼠参照Allen法制作脊髓损伤模型。2组分别于术后1、3、6、12、24、48、72、168、336 h对8只大鼠进行Tarlov评分,评分后处死。取损伤区脊髓组织进行HE染色观察脊髓组织病理学变化,免疫组织化学法测定VEGF及HIF-1α表达并对阳性细胞进行计数,做统计学分析和相关性分析。结果 各组动物均存活至实验完成。Tarlov评分结果显示：假手术组大鼠术后各时间点评分变化不明显,脊髓损伤组大鼠术后各时间点评分均较假手术组显著降低（P 〈 0.05）,其中术后24、168 h降低最明显（2.24、2.28）。脊髓损伤组术后1 ～ 6 h,损伤局部脊髓组织结构紊乱、水肿;术后168 h内,损伤区域扩大,大量炎性细胞浸润;术后336 h损伤减轻,但仍可见较多炎性细胞浸润。免疫组织化学检测,假手术组大鼠VEGF 及HIF-1α阳性细胞较少;脊髓损伤组大鼠术后6 h,VEGF及HIF-1α阳性细胞数开始增多,HIF-1α于术后24、168 h出现2次高峰,VEGF于术后168 h出现高峰,各时间点HIF-1α及VEGF阳性细胞数均较假手术组显著增加（P 〈 0.05）。VEGF与HIF-1α表达呈正相关（r = 0.526, P 〈 0.05）。结论 大鼠脊髓损伤后HIF-1α、VEGF表达升高,与继发性脊髓损伤密切相关,其表达规律与损伤时间具有相关性;HIF-1α与VEGF表达呈正相关性。     

LY-294002对大鼠急性脊髓损伤后Caspase-3表达的影响

目的研究LY-294002对急性脊髓损伤大鼠Caspase-3表达的变化。方法选取104只成年健康SD大鼠,按Nystrom法建立大鼠脊髓(T8～9)急性压迫损伤模型,按随机数字表法分为假手术组8只、损伤组48只、LY-294002组48只。免疫组化和Western blot方法检测各组大鼠脊髓损伤部位Caspase-3的表达。结果免疫组化结果发现假手术组大鼠脊髓神经细胞中Caspase-3阳性细胞较少;在脊髓损伤后8 h时,Caspase-3阳性细胞数明显增多,3 d达高峰,7 d表达开始减弱。在经LY-294002处理后的各时间点大鼠脊髓损伤部位的Caspase-3阳性细胞明显少于相同时间点的脊髓损伤组大鼠。Western blot方法发现假手术组大鼠脊髓损伤部位的Caspase-3的表达量很少,而在脊髓损伤后8h时,Caspase-3蛋白表达量明显增多,3 d达高峰,7 d表达开始减弱,在经LY-294002处理后的各时间点大鼠脊髓损伤部位的Caspase-3蛋白表达则明显少于相同时间点的脊髓损伤组大鼠,与免疫组化结果一致。结论LY-294002能够下调急性脊髓损伤大鼠Caspase-3蛋白的表达。     

黄芪注射液对脑缺血再灌注大鼠海马神经元凋亡及JNK3表达的影响

目的:观察黄芪注射液对脑缺血再灌注大鼠海马神经元凋亡及c-Jun N末端激酶3(JNK3)表达的影响。方法:四血管阻断法制备脑缺血再灌注大鼠模型。设假手术组、脑缺血再灌注模型组(模型组)、脑缺血再灌注模型+黄芪注射液组(黄芪注射液组)和脑缺血再灌注模型+黄芪注射液溶剂对照组(溶剂对照组)。除假手术组外其余3组根据再灌注时间不同又分为0 h、0.5 h、2 h、6 h、24 h、72 h和120 h 7个亚组。采用TUNEL法检测海马神经元凋亡,Western blotting法检测海马组织JNK3蛋白变化,real-time PCR法检测海马组织JNK3 mRNA 的表达变化。结果:与假手术组比,模型组大鼠各个时点凋亡细胞数均增多(P<0.05);与模型组比,黄芪注射液组各个时点的细胞凋亡数明显减少(P<0.05),而黄芪注射液溶剂对照组各个时点的细胞凋亡数无明显变化(P>0.05)。除120 h外,模型组各时点海马组织JNK3蛋白及mRNA表达均较假手术组增加(P<0.05);与模型组相比,黄芪注射液可减弱除120 h之外的各时点JNK3 蛋白及mRNA的表达(P<0.05),而黄芪注射液溶剂对照组则无明显变化(P>0.05)。结论:黄芪注射液可抑制脑缺血再灌注大鼠海马神经元凋亡,其抗凋亡机制可能与下调JNK3 mRNA及蛋白表达有关。     

姜黄素通过抑制JNK/c-Jun信号通路减轻大鼠蛛网膜下腔出血后早期脑损伤北大核心CSCD

目的探讨姜黄素抑制大鼠蛛网膜下腔出血(SAH)后早期脑损伤中的海马神经元损伤的作用,以及其与c-Jun N末端激酶(JNK)/c-Jun信号通路之间的关系。方法成年雄性SD大鼠60只随机分为4组,分别为:假手术组、蛛网膜下腔出血组、100 mg/(kg·d)姜黄素组和200 mg/(kg·d)姜黄素组,每组15只。用拴线法建立蛛网膜下腔出血模型。采用Nissl染色观察神经元破坏情况。TUNEL染色测定凋亡细胞。免疫组织化学染色法测定caspase-3表达,Western blot法检测海马组织c-Jun、磷酸化的c-Jun(p-c-Jun)、JNK、磷酸化的JNK(p-JNK)和活性的胱天蛋白酶3(caspase-3)蛋白水平。结果 Nissl染色检测到SAH组中Nissl小体减少,而姜黄素干预后可抑制此改变;TUNEL染色检测发现SAH组凋亡细胞增多,而姜黄素干预后凋亡细胞明显减少,其中以高剂量组更加明显。SAH组caspase-3、p-c-Jun和p-JNK蛋白表达上调,而姜黄素干预后p-c-Jun、p-JNK和caspase-3蛋白表达较SAH组中的表达降低,其中以高剂量组更加明显。结论姜黄素可能通过抑制JNK/c-Jun信号通路和细胞凋亡减轻大鼠蛛网膜下腔出血后早期脑损伤。     

姜黄素通过抑制JNK/c-Jun信号通路减轻大鼠蛛网膜下腔出血后早期脑损伤

目的探讨姜黄素抑制大鼠蛛网膜下腔出血(SAH)后早期脑损伤中的海马神经元损伤的作用,以及其与c-Jun N末端激酶(JNK)/c-Jun信号通路之间的关系。方法成年雄性SD大鼠60只随机分为4组,分别为:假手术组、蛛网膜下腔出血组、100 mg/(kg·d)姜黄素组和200 mg/(kg·d)姜黄素组,每组15只。用拴线法建立蛛网膜下腔出血模型。采用Nissl染色观察神经元破坏情况。TUNEL染色测定凋亡细胞。免疫组织化学染色法测定caspase-3表达,Western blot法检测海马组织c-Jun、磷酸化的c-Jun(p-c-Jun)、JNK、磷酸化的JNK(p-JNK)和活性的胱天蛋白酶3(caspase-3)蛋白水平。结果 Nissl染色检测到SAH组中Nissl小体减少,而姜黄素干预后可抑制此改变;TUNEL染色检测发现SAH组凋亡细胞增多,而姜黄素干预后凋亡细胞明显减少,其中以高剂量组更加明显。SAH组caspase-3、p-c-Jun和p-JNK蛋白表达上调,而姜黄素干预后p-c-Jun、p-JNK和caspase-3蛋白表达较SAH组中的表达降低,其中以高剂量组更加明显。结论姜黄素可能通过抑制JNK/c-Jun信号通路和细胞凋亡减轻大鼠蛛网膜下腔出血后早期脑损伤。     

己酮可可碱对兔缺血再灌注损伤脊髓的保护作用及机制

目的： 对己酮可可碱(PTX)在脊髓缺血再灌注损伤中神经元的保护作用及其机制进行初步探讨。方法: 采用日本大耳白兔腹主动脉夹闭法建立脊髓缺血再灌注损伤动物模型，随机分为A组（假手术组，8只）、B组（对照组，20只）、C组（夹闭血管前用药组，20只）、D组（再灌注即刻用药组，20只）。于再灌注后12 h、24 h、48 h、72 h检测血TNF-α活性、组织MPO活性、免疫组化法观察并检测PECAM-1及caspase-3表达、HE染色观察神经元并计数坏死神经元、TUNEL染色观察并计数凋亡神经元、电镜观察坏死及凋亡神经元形态改变，并于再灌注后48 h进行运动功能评分（改良Tarlov评分）。结果: 用药组（C组及D组）改良Tarlov评分明显高于对照组（P<0.05），血TNF-α、组织MPO含量、免疫组化PECAM-1及caspase-3表达强度均明显下降，HE及TUNEL染色切片中坏死细胞及凋亡细胞均明显减少，与对照组有显著差异（P<0.05）。假手术组未见坏死及凋亡细胞。结论: 己酮可可碱在脊髓缺血再灌注损伤中能够发挥抑制神经元坏死及凋亡的双重脊髓保护作用。     

贝沙罗汀对小鼠脑缺血再灌注损伤神经元的保护作用及机制

目的 探讨贝沙罗汀(Bexarotene)对脑缺血再灌注(CIR)损伤神经元的保护作用及机制。方法 将45只C57BL/6雄性小鼠随机分为假手术组、模型组及贝沙罗汀组(5 mg/kg),每组15只。采用线栓法建立短暂小鼠中动脉栓塞(t MCAO)模型,再灌注后通过神经行为学评分观察小鼠神经功能缺损情况; HE染色观察脑部皮层损伤侧神经元病理变化; TUNEL染色检测脑部皮层损伤侧神经元凋亡;免疫荧光染色检测损伤部位Cleaved Caspase-3表达; Western blot检测小鼠损伤脑组织中JNK信号通路相关蛋白P-C-Jun、P-JNK及Cleaved Caspase-3的表达情况。结果 与假手术组相比,模型组和贝沙罗汀组小鼠神经功能缺损明显较重(P 0. 05),皮层神经元损伤分级明显增加(P 0. 05),损伤部位TUNEL阳性细胞数及Cleaved Caspase-3的表达明显较高(P 0. 05),同时损伤侧小鼠脑组织JNK、C-Jun、Cleaved Caspase-3的蛋白表达水平显著上调(P 0. 05);与模型组相比,贝沙罗汀组小鼠神经行为学评分较低(P 0. 05),贝沙罗汀可有效阻止t MCAO后脑组织形态学的改变(P 0. 05),降低小鼠损伤侧脑组织TUNEL染色阳性细胞数及P-JNK、P-C-Jun、Cleaved Caspase-3蛋白表达水平(P 0. 05)。结论 贝沙罗汀对CIR神经元损伤具有保护作用,且该作用可能通过抑制JNK/Caspase-3信号通路的激活来实现。     

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.