Digital Commons Network^™

Allele Loss On Chromosome 10 And Point Mutation Of Ras Oncogenes Are Infrequent In Tumors Of Men 2 A, Makoto Okazaki, Akihiro Miya, Norifumi Tanaka, Tetsuro Miki, Masayuki Yamamoto, Kazuyoshi Motomura, Akira Miyauchi, Takesada Mori, Shin-Ichiro Takai

Henry Ford Hospital Medical Journal

The multiple endocrine neoplasia type 2A (MEN 2A) gene has been mapped to the centromeric region of chromosome 10 by linkage analysis. We examined 36 medullary thyroid carcinomas (MTCs) (16 hereditary and 20 sporadic) and ten pheochromocytomas (eight hereditary and two sporadic) to detect loss of alleles on chromosome 10 using seven polymorphic DNA markers mapped to this chromosome. Of 20 informative cases, only one (5%) sporadic MTC showed loss of heterozygosity at the locus RBP3. Allele loss at the RBP3 locus was not found in pheochromocytomas from six heterozy gates. All tumors retained constitutional heterozygosity at six other loci …

A Novel Parathyroid Hormone-Related Gene Product, T. J. Martin, J. A. Danks

Henry Ford Hospital Medical Journal

A parathyroid hormone-related protein (PTHrP) has been invoked as being responsible for the humoral hypercalcemia of malignancy. Eight of the first 13 amino acids of PTHrP are identical with those in PTH, but there is no other significant homology. The PTHrP gene is located on chromosome 12, whereas that for PTH is on chromosome 11, and the two genes are probably related by a duplication process. Antisera against PTHrP(1-34), which cross-read poorly or not at all with PTH, and antisera against other parts of PTHrP not homologous to PTH were used in immunocytochemistry, using a peroxidase-antiperoxidase method, to identify PTHrP …

Evolutionary Pathways Of The Calcitonin (Calc) Genes, Cornelis J. M. Lips, Rolf A. Geerdink, Maria G. Nieuwenhuis, Jaap Van Der Sluys Veer

Henry Ford Hospital Medical Journal

Recombinant DNA techniques have made it possible to establish the structure of various genes encoding polypeptide hormones. Comparison of nucleotide sequences of the calcitonin (CALC) genes in man has revealed surprising similarities and variations. These findings and the homologies among the sequences in different species offered an opportunity for speculation about relationships between these genes and about their evolutionary origin. The first gene (CALC-I) directing the synthesis of calcitonin (CT) or CT gene-related peptide (CGRP) comprises six exons and gives rise to two mRNAs by an alternative RNA-processing mechanism. The homology between CGRP and CT reflects their common origin. The …

Abstracts From The Third International Workshop On Men 2

Henry Ford Hospital Medical Journal

No abstract provided.

The Third International Workshop On Multiple Endocrine Neoplasia Type 2 Syndromes, Friedhelm Raue, Charles E. Jackson

Henry Ford Hospital Medical Journal

No abstract provided.

Multiple Endocrine Neoplasia Type 2 Syndromes: Nomenclature Recommendations From The Workshop Organizing Committee, Robert F. Gagel, Charles E. Jackson, Bruce A. J. Ponder, Friedhelm Raue, Nancy E. Simpson, Reinhard Ziegler

Henry Ford Hospital Medical Journal

No abstract provided.

Screening For Medullary Thyroid Cancer In France: A National Effort, Claude Calmettes, A. Chaventre, Nicole Feingold, Brigitte Franc, J. M. Guliana

Henry Ford Hospital Medical Journal

Screening for medullary thyroid cancer (MTC) in France is based on a protocol that has been widely distributed nationally. A network of coordinators utilizing a common questionnaire provides for an effective national screening program. Calcitonin stimulation procedures are systematically used for all first-degree relatives of MTC patients. Pathological studies utilize special immunopathologic techniques. Genealogic information is obtained on all index cases, and blood specimens are collected for establishing permanent cell lines. The data collected are used not only to establish the diagnosis of the hereditary or sporadic form of the disease but also to expand the screening as appropriate. This …

Familial Cutaneous Lichen Amyloidosis In Association With Multiple Endocrine Neoplasia Type 2a: A New Variant, D. T. Donovan, M. L. Levy, E. J. Furst, B. R. Alford, T. Wheeler, J. A. Tschen, R. F. Gagel

Henry Ford Hospital Medical Journal

Multiple endocrine neoplasia type 2A (MEN 2A) is a rare hereditary disease transmitted in families as an autosomal dominant trad. We have identified a family in which the expression of a rare autosomal dominant form of cutaneous lichen amyloidosis appears to cosegregate with MEN 2A. In this family the skin lesion presented as multiple infiltrated papules overlying well demarcated plaques over the scapular area (right or left). Immunohistochemical studies demonstrated amyloid which stained for keratin but not calcitonin. A total of 19 members were screened. Three members of the family have the characteristic skin lesion and MEN 2A; two additional …

Diagnostic And Therapeutic Potential Of New Radiopharmaceutical Agents In Medullary Thyroid Carcinoma, Luigi Troncone, Vittoria Rufini, Giovina De Rosa, Amerigo Testa

Henry Ford Hospital Medical Journal

Recently developed radiopharmaceuticals have been proposed for imaging medullary thyroid carcinoma (MTC) with some having therapeutic potential. This study compares the imaging results obtained with radioiodinated meta-iodo-benzylguanidine (MIBG), 99mTc (V) DMSA, and 131I F(ab')2 anti-carcinoembryonic antigen (anti-CEA) in a group of MTC patients. In 23 patients 131I MIBG imaging showed a high specificity (no false-positive results) but a less satisfactory sensitivity (50%). In 12 patients 99mTc (V) DMSA revealed a better sensitivity (77%) but a lower specificity (three false-positive results). Positive results were obtained in two of three patients studied with 131I F(ab')2 anti-CEA. These data suggest that the highly …

A Preliminary Evaluation Of Calcitonin And Pdn-21 As Tumor Markers For Lung Cancer, J. J. Body, J. C. Dumon, J. P. Sculier, G. Dabouis, H. Lacroix, P. Libert, M. Richez, G. Bureau, P. Mommen, N. Raymakers, M. Paesmans, J. Klastersky

Henry Ford Hospital Medical Journal

Immunoreactive calcitonin (ICT) can be ectopically secreted by lung cancer cells and has been proposed as a tumor marker for bronchial neoplasms. Since PDN-21 (katacalcin or the carboxyl-terminal flanking peptide of the calcitonin gene) and CT are cosecreted in normal subjects and in patients with medullary thyroid carcinoma (MTC), we sought to determine the potential utility of PDN-21 as a tumor marker for lung cancer. We measured carcinoembryonic antigen (CEA), neuronspecific enolase (NSE), iCT, and PDN-21 in 119 to 378 healthy subjects, 88 to 91 patients with benign pulmonary diseases, and 249 patients with advanced lung cancer (108 small cell …

Back Matter

Henry Ford Hospital Medical Journal

No abstract provided.

Vital Signs, September 1989, Boonshoft School Of Medicine

Vital Signs

A twelve page newsletter created by the Boonshoft School of Medicine to document the current affairs of the school. This issue includes a variety of feature articles, alumni profiles, class notes, and more.

The Concentration Of Prostaglandin E2 In Periradicular Lesions, Steve N. Mcnicholas

Loma Linda University Electronic Theses, Dissertations & Projects

Prostaglandins (PG) have been implicated in pathogenesis of periapical lesions. The purpose of this study was to determine the concentrations of PGE₂ in human periapical lesions. Periapical specimens from patients with clinical signs and symptoms of chronic and acute apical periodontitis were obtained and immediately frozen in liquid nitrogen. Periradicular tissues from unerupted third molars were frozen and used as controls. The concentration of PGE₂ was determined by radioimmunoassay. Low levels of PGE₂ were found in the control tissues as compared to those detected in chronic and acute lesions. A significantly higher level of PGE₂ was …

Transforming Growth Factor-Beta Stimulation Of Lung Fibroblast Prostaglandin E2 Production., Arturo Diaz, John Varga, Sergio A. Jimenez

Department of Medicine Faculty Papers

Transforming growth factor-beta (TGF beta) stimulated the production of total protein, collagen, and fibronectin by normal human lung fibroblasts. The stimulatory response was maximal at 100 pM TGF beta and reversed toward control at higher concentrations. Inhibition of fibroblast prostaglandin (PG) synthesis enhanced TGF beta-induced stimulation of total protein, collagen, and fibronectin production and reversed the negative slope of the dose-response curve at high concentrations of TGF beta. Determination of the steady-state levels of Types I and III procollagens and fibronectin mRNAs employing specific cDNA probes demonstrated that inhibition of fibroblast PG production increased the stimulatory effect of TGF beta …

Microwell Based Competitive Enzyme Immunoassay For Quantifying Serum Triiodothyronine And Thyroxine Levels, Yiwen Yang

Chemistry & Biochemistry Theses & Dissertations

A microwell based competitive enzyme immunoassay for determination of total thyroxine and triiodothyronine in human serum was developed with use of horseradish peroxidase conjugate. The assay, which can be performed in only 1.5 hours at room temperature, involves simultaneous incubation of T₃- or T₄- HRPO conjugate and serum sample in anti-T₃ or anti-T₄ gamma globulin fraction coated polystyrene microwells.

Isolation of anti-T₃ and anti-T₄ gamma globulin fractions were accomplished from whole antiserum by using DEAE-cellulose chromatograph. A carbodiimide coupling method was described to prepare the T₄- and T₃-HRPO …

Department Of Radiology-Annual Report-July 1, 1988 To June 30, 1989, David C. Levin

Department of Radiology Administrative Documents and Reports

Department of Radiology Annual Report, July 1, 1988 to June 30, 1989. Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, United States. 81 pages.

Myasthenia Gravis, Stanton B. Elias

Henry Ford Hospital Medical Journal

No abstract provided.

Toxic Shock-Like Syndrome Associated With Necrotizing Streptococcus Pyogenes Infection, Thomas J. Connolly, Donald J. Pavelka, Eugene F. Lanspa, Thomas L. Connolly

Henry Ford Hospital Medical Journal

Two patients with toxic shock-like syndrome are presented. Both patients had necrotizing cellulitis due to Streptococcus pyogenes, and both patients required extensive surgical debridement. The association of Streptococcus pyogenes infection and toxic shock-like syndrome is discussed.

Genetic Mechanisms Of Neoplasia In Men 2, Charles E. Jackson, Robert A. Norum

Henry Ford Hospital Medical Journal

Several possible mechanisms for the initiation and progression of tumors in multiple endocrine neoplasia type 2 (MEN 2) merit consideration. Localization of MEN2A to the pericentromeric area of chromosome 10 indicates the site of the initial mutagenic event but does not explain the tissue specificity observed. The consistency of tissue involvement within families, despite the variability between families, suggests that the tumors result from separate but contiguous tissue-specific genes arranged in a particular linear order. Linkage studies in MEN 2A and 2B families are compatible with this contiguous gene theory. Data suggest that Knudson's two-mutational-event theory is applicable in MEN2, …

In Vitro Evaluation Of Cancer Patient Immune Responses Following Infusion Of Radiolabeled Murine Monoclonal Antibody, Kelly A. King

Loma Linda University Electronic Theses, Dissertations & Projects

Several monoclonal antibody (MAb) types derived from mice have been developed specifically for the use of targeting human tumors. The specificity of these murine MAb’s for their respective tumor antigens is very high making them potentially good immunotherapeutic agents for cancer treatment and diagnosis. A limiting factor in using these murine MAb’s in patients is the development of human anti-mouse antibody (HAMA). The presence of HAMA may reduce the effectiveness of MAb for tumor targeting. If patient sensitization could be quickly detected following the initial infusion of MAb, then future infusion could be altered or terminated to prevent further sensitization. …

Autonomic Nervous System And Cholesterol Transport, Yuan-Line Hung

Loma Linda University Electronic Theses, Dissertations & Projects

The effect of autonomic nervous system on cholesterol transport is of clinical interest because the relationship between lipoprotein metabolism and atherogenesis is expressed in coronary artery disease.

Generally speaking, beta blockers increase serum VLDL level but decrease both HDL and HDL₂ cholesterol levels without affecting the LDL in humans. We are unaware of reports concerning the effects of metoprolol on lipoprotein metabolism nor comparison of the effects of metoprolol and propranolol in the unhandled rat model. In part I we employed the unhandled rats to compared the effects of these 2 drugs administered with the drinking water in order …

Genes For Extracellular Matrix-Degrading Metalloproteinases And Their Inhibitor, Timp, Are Expressed During Early Mammalian Development, C. A. Brenner, R. R. Adler, D. A. Rappolee, R. A. Pedersen, Z Werb

Department of Obstetrics and Gynecology Research Publications

Extracellular matrix (ECM) remodeling accompanies cell migration, cell-cell interactions, embryo expansion, uterine implantation, and tissue invasion during mammalian embryogenesis. We have found that mouse embryos secrete functional ECM-degrading metalloproteinases, including collagenase and stromelysin, that are inhibitable by the tissue inhibitor of metalloproteinases (TIMP) and that are regulated during peri-implantation development and endoderm differentiation. mRNA transcripts for collagenase, stromelysin, and TIMP were detected as maternal transcripts in the unfertilized egg, were present at the zygote and cleavage stages, and increased at the blastocyst stage and with endoderm differentiation. These data suggest that metalloproteinases function in cell-ECM interactions during growth, development, and …

Regeneration Of Meissner Corpuscles In Diabetic Mice Following Median Nerve Crush, Bonnie J. Forrester

Loma Linda University Electronic Theses, Dissertations & Projects

The hyperglycemic metabolic condition found in diabetes mellitus leads to the development of sensory neuropathies and causes delayed and incomplete neuronal regeneration. Diabetic sensory neuropathy has been shown to contribute to the impairment of light touch and low frequency vibratory perception. It is proposed that the regeneration of receptors that detect these sensations will be delayed and incomplete in diabetic animals with uncontrolled hyperglycemia. This study addresses the effects of diabetes on the regeneration of Meissner corpuscles, distal sensory endings that perceive light touch and low frequency vibration.

Corpuscles from 60 diabetic mice, and their age-matched, non-diabetic littermates, were examined …

Vital Signs, April 1989, Boonshoft School Of Medicine

Vital Signs

A twelve page newsletter created by the Boonshoft School of Medicine to document the current affairs of the school. This issue includes a variety of feature articles, alumni profiles, class notes, and more.

Hypoxanthine-Induced Differentiation Of Cultured Human Leukemia Cells, Gayle Jennette Singleton

Chemistry & Biochemistry Theses & Dissertations

Human cultured leukemia cells appear to have a decreased amount of inosine in their tRNA. When cells with inosine deficient tRNA are placed in a hypoxanthine fortified media, they incorporate hypoxanthine into their tRNA by the action of the enzyme tRNA-hypoxanthine ribosyl transferase. This generates the nucleoside inosine in the tRNA. The cultured human leukemia cell lines, CCRF-CEM, HL-60, and HGPRT(-) HL- 60, incorporate hypoxanthine into their tRNA, as determined by tRNA isolation, hydrolysis, and HPLC analysis. Hypoxanthine treatment dramatically inhibited cell growth in conjunction with partial induction of differentiation in the CCRF-CEM, HL-60, and HGPRT ( - ) HL-60 …

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.

Screening For Adenocarcinoma Of The Prostate, Brian J. Miles

Henry Ford Hospital Medical Journal

No abstract provided.

Histopathologic Diagnosis And Classification Of Prostate Adenocarcinoma: Biologic Significance, Jill M. Peters, John D. Crissman

Henry Ford Hospital Medical Journal

Early diagnosis and accurate, biologically meaningful classification of prostate neoplasia remain important goals. The relation of evolving clinicopathologic concepts of histologic appearances to potential tumor progression is a major advance in classification of prostatic neoplasia. The criteria for recognizing incidental or "occult" stage A-l adenocarcinomas remain problematic in diagnosis, and focal neoplasms with little or no propensity to progression must be differentiated from cancers with a high likelihood of aggressive behavior. Current histologic grading systems in classifying prostate adenocarcinoma accurately identify two cancer subsets: 1) focal well differentiated tumors which rarely progress, and 2) diffuse poorly differentiated tumors which invariably …

Hormonal Management Of Advanced Adenocarcinoma Of The Prostate, Brian J. Miles

Henry Ford Hospital Medical Journal

No abstract provided.

Advances In The Diagnosis Of Urothelial Neoplasia, John D. Crissman, Richard J. Zarbo, Terri Johnson, V. Ramesh Babu, Fazlul H. Sarkar, Brian J. Miles, Joseph C. Cerny

Henry Ford Hospital Medical Journal

Urothelial neoplasia is a unique cancer in that it consists of a spectrum of tumors with different biologic behaviors. The most common urothelial neoplasm is the low grade superficial papillary carcinoma or papilloma which may recur numerous times but does not result in significant morbidity or mortality. A variant of the superficial papillary carcinoma, which represents approximately 10% of the tumors, is the noninvasive papillary neoplasm which progresses to a less differentiated invasive transitional cell carcinoma (TCC). Considerable effort has been directed at identifying which of the superficial well differentiated papillary tumors will persist, recur and progress to invasive cancer …