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Articles 38251 - 38280 of 42094

Full-Text Articles in Medicine and Health Sciences

New Purine Analogues For The Treatment Of Chronic B-Cell Malignancies, Thomas E. Gribbin Jun 1991

New Purine Analogues For The Treatment Of Chronic B-Cell Malignancies, Thomas E. Gribbin

Henry Ford Hospital Medical Journal

Adenosine deaminase (ADA). a purine salvage pathway enzyme, appears to play a key role in normal lymphocyte growth, development, and differentiation. Three new purine nucleoside analogues, deoxycoformycin, fludarahine, and 2-chlorodeoxyadenosine, affect the normal function of the purine salvage pathway by inhibiting ADA or by acting as analogs of the ADA substrates. These agents show significant activity in the treatment of chronic B-cell leukemias and low-grade lymphomas. The pharmacology, mechanism of action, and clinical usefulness of these agents are discussed.


Peripheral Blood Stem Cell Transplantation As An Alternative To Bone Marrow Transplantation: An Overview, Nalini Janakiraman Jun 1991

Peripheral Blood Stem Cell Transplantation As An Alternative To Bone Marrow Transplantation: An Overview, Nalini Janakiraman

Henry Ford Hospital Medical Journal

Stem cells capable of restoring hematopoiesis following lethal bone marrow injury circulate in the blood of many animals, including humans. When collected through leukapheresis and reinfused following high-dose chemotherapy, stem cells offer a treatment option not currently open to some patients who are unable to undergo autologous bone marrow transplantation because of tumor involvement in the pelvis, prior pelvic radiation, or intolerance to general anesthesia. After stem cell infusion, hematologic and immunologic recovery are rapid in comparison to that after autologous hone marrow reinfusion: however, in some cases platelet engraftment is slower. There is some evidence that tumor contamination in …


Porcine Bioprosthetic Aortic Valve Endocarditis With Ring Abscess And Aortic Stenosis, Reda A. Girgis, Howard Rosman, Ramon Del Busto, Maryann Fitzmaurice, Norman A. Silverman Jun 1991

Porcine Bioprosthetic Aortic Valve Endocarditis With Ring Abscess And Aortic Stenosis, Reda A. Girgis, Howard Rosman, Ramon Del Busto, Maryann Fitzmaurice, Norman A. Silverman

Henry Ford Hospital Medical Journal

Porcine bioprosthetic valve endocarditis is an infrequent but serious complication of valve replacement surgery. Ring (or annular) abscess is a frequent finding in mechanical valve endocarditis. In contrast, porcine valve endocarditis most often involves the cusps, and annular infection is uncommon. Porcine valvular dysfunction secondary to endocarditis usually takes the form of incompetence, whereas stenosis is less frequent. We report a case of a 76-year-old female who developed endocarditis wilh Staphylococcus epidermidis nine months after placement of a Carpenter-Edwards porcine aortic valve. Her initial presentation included complete heart block and moderate aortic stenosis. Transesophageal echocardiography aided the diagnosis by demonstrating …


The Department Of Surgery And The Halsted Tradition, Edward R. Munnell Jun 1991

The Department Of Surgery And The Halsted Tradition, Edward R. Munnell

Henry Ford Hospital Medical Journal

No abstract provided.


Back Matter Jun 1991

Back Matter

Henry Ford Hospital Medical Journal

No abstract provided.


Hospice Care: An Overview, Josefina B. Magno Jun 1991

Hospice Care: An Overview, Josefina B. Magno

Henry Ford Hospital Medical Journal

No abstract provided.


Total Blood Cholesterol, Blood Triglyceride, And Blood Hdl Correlation, Rebecca Lynn Babler Jun 1991

Total Blood Cholesterol, Blood Triglyceride, And Blood Hdl Correlation, Rebecca Lynn Babler

Masters Theses

The purpose of this investigation was to determine the relationship between total blood cholesterol levels, blood triglyceride levels, and blood HDL levels in men and women 20 to 80 years of age. All subjects fasted for 12 hours prior to having their blood drawn.

The computer program SPSSX (SPSSX, Inc., 1988) was used along with subprograms CONDESCRIPTIVE, CORRELATION, and ANOVA. Pearson Product Moment Correlations were calculated for all subjects, for male subjects, and for female subjects.

The study revealed a low correlation coefficient between blood cholesterol levels and blood triglyceride levels for all subjects, female subjects and male subjects. There …


Effect Of Age On The Structure Of Meissner Corpuscles In Forepad Digital Pads Of Mice, Roger C. Mathewson Jun 1991

Effect Of Age On The Structure Of Meissner Corpuscles In Forepad Digital Pads Of Mice, Roger C. Mathewson

Loma Linda University Electronic Theses, Dissertations & Projects

Meissner corpuscles in forepaw digital pads of albino mice were examined by light and electron microscopy to determine structural age-changes. After 1.5 months of age, no intraepidermal nerve fibers were seen extending from corpuscles. From young (1.5-6 months) to middle age (9-15 months), corpuscles became larger and more complex, gaining more horizontally arranged terminals, associated lamellae and connective tissue. At old age (18-26 months), corpuscles became small and lobulated, appearing disorganized. There was no loosening of the corpuscle-epidermal interface. An increase in collagenous connective tissue and basal lamina duplication occurred with advancing age. Ultrastructural age-changes consisted of disorganization of the …


A Flow Cytometric Analysis Of Immunocyte Populations In Peripheral Blood And Pleural Effusions Of Patients With Cancer, Mandy L. Bohn Jun 1991

A Flow Cytometric Analysis Of Immunocyte Populations In Peripheral Blood And Pleural Effusions Of Patients With Cancer, Mandy L. Bohn

Loma Linda University Electronic Theses, Dissertations & Projects

Two-color flow cytometric analysis was performed on paired samples of peripheral blood (PB) and pleural effusions (PE) of patients with metastatic malignancies. The purpose of these analyses was to test the hypothesis that there are significant differences in the distribution of immunocyte populations in the PE compared to that of the PB.

The majority of the pleural fluid immunocytes were CD3+ cells. The ratio of CD4+ to CD8+ cells was higher in the PE compared to PB. Levels of CD8+, CD19+ and CD14+ cells were not significantly different in the PE compared to the levels in the PB. CD16+CD56+ cells …


The Role Of T Cells In The Pathogenesis Of Periapical Lesions, John B. Wallstrom Jun 1991

The Role Of T Cells In The Pathogenesis Of Periapical Lesions, John B. Wallstrom

Loma Linda University Electronic Theses, Dissertations & Projects

The pulps of mandibular molars of 15 athymic and 15 conventional rats were surgically exposed and left open to their oral flora. Each group was divided into 3 subgroups of 5 animals each. The rats were sacrificed after their pulps were exposed for 2, 4, or 8 weeks. After fixing, decalcifying, and embedding, the specimens were sectioned and stained with H and E. They were then examined under a microscopic grid and quantified by percentages of surface areas of bone, connective tissue, bone marrow, intrabony spaces, periapical lesions, and numbers of osteoclasts. This was done using a DataVoice computerized data …


Histomorphometric Analysis Of Primate Periodontal Tissues Following Corticotomy In Orthodontics, Wuiteng Koh Jun 1991

Histomorphometric Analysis Of Primate Periodontal Tissues Following Corticotomy In Orthodontics, Wuiteng Koh

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to evaluate the prevalence of specific cell types and structures at the active tooth movement site in corticotomized and non-corticotomized specimens obtained from a previous study, and to consider the hypothesis that corticotomy facilitated orthodontics is efficacious due to an inflammatory response rather than tooth-bone block movement. Specimens from 3 monkeys, each of which had a treatment and control quadrant in each arch, were sectioned, mounted on glass slides, and stained with Giemsa, haematoxylin, and Safranin stains. A histomorphometric analysis was performed with DataVoice™, a voice activated computer system which allowed for digitization of …


Cytolytic And Ion Channel Forming Properties Of The N-Terminus Of Lymphocyte Perforin, David M. Ojcius, Pedro M. Persechini, Li-Mou Zheng, Paulo C. Notaroberto, Sandro C. Adeodato, John Ding-E. Young Jun 1991

Cytolytic And Ion Channel Forming Properties Of The N-Terminus Of Lymphocyte Perforin, David M. Ojcius, Pedro M. Persechini, Li-Mou Zheng, Paulo C. Notaroberto, Sandro C. Adeodato, John Ding-E. Young

All Dugoni School of Dentistry Faculty Articles

Perforin lyses cells by binding to the target cell membrane, where it polymerizes into large nonspecific pores. It is shown here that the first 34 amino acids of the N-terminal region of either human or murine perforin are soluble in aqueous medium and spontaneously insert into membranes. The N-terminal peptides lyse liposomes and nucleated cells, and they form ion channels in planar bilayers, some of which are comparable to those previously described for perforin. The lytic activity of the N-terminal domains does not require calcium, is independent of the lipid headgroup composition, and can be inhibited by heparin. Tumor cells …


Mapping The Transcriptional Transactivation Function Of Simian Virus 40 Large T Antigen., Jiyue Y. Zhu, Philip W. Rice, Michele Chamberlain, Charles N. Cole Jun 1991

Mapping The Transcriptional Transactivation Function Of Simian Virus 40 Large T Antigen., Jiyue Y. Zhu, Philip W. Rice, Michele Chamberlain, Charles N. Cole

Dartmouth Scholarship

T antigen is able to transactivate gene expression from the simian virus 40 (SV40) late promoter and from several other viral and cellular promoters. Neither the mechanisms of transactivation by T antigen nor the regions of T antigen required for this activity have been determined. To address the latter point, we have measured the ability of a set of SV40 large T antigen mutants to stimulate gene expression in CV-1 monkey kidney cells from the SV40 late promoter and Rous sarcoma virus (RSV) long terminal repeat (LTR) promoter. Transactivation, although reduced, was retained by an N-terminal 138-amino-acid fragment of T …


The Gamut: A Journal Of Ideas And Information, No. 32, Spring 1991, Cleveland State University Apr 1991

The Gamut: A Journal Of Ideas And Information, No. 32, Spring 1991, Cleveland State University

The Gamut Archives

CONTENTS OF ISSUE NO. 32, SPRING, 1991

Editorial

Louis T. Milic: The Cynic’s New Word Book, 2

Jane Ware: The Bones of Fort Laurens, 4

Excavating Ohio’s only Revolutionary War fort

Lawrence Martin: The Pickwickian Syndrome, 12

A deadly combination of obesity and too shallow breathing

Donald Dewey: Let’s Reorganize Major League Sports!, 25

Shouldn’t major league membership be based on performance?

Barbra Cunliffe Singleton: Walking the Wrong Way Around the Monastery, 31

Tibet’s cultural heritage is being erased under Chinese rule

John A.C. Greppin: The Language of the Babylonians and Assyrians, 37

Deciphering …


Strain-Specific Neutralizing Determinant In The Transmembrane Protein Of Simian Immunodeficiency Virus, Toshiaki Kodama, Dawn P. Wooley, Daniel P. Silva, Fulvia Dimarzo Veronese, Ronald C. Desrosiers Apr 1991

Strain-Specific Neutralizing Determinant In The Transmembrane Protein Of Simian Immunodeficiency Virus, Toshiaki Kodama, Dawn P. Wooley, Daniel P. Silva, Fulvia Dimarzo Veronese, Ronald C. Desrosiers

Neuroscience, Cell Biology & Physiology Faculty Publications

Monoclonal antibody SF8/5E11, which recognizes the transmembrane protein (TMP) of simian immunodeficiency virus of macaque monkeys (SIVmac), displayed strict strain specificity. It reacted with cloned and uncloned SIVmac251 but not with cloned SIVmac142 and SIVmac239 on immunoblots. This monoclonal antibody neutralized infection by cloned, cell-free SIVmac251 and inhibited formation of syncytia by cloned SIVmac251-infected cells; these activities were specific to cloned SIVmac251 and did not occur with the other viruses. Site-specific mutagenesis was used to show that TMP amino acids 106 to 110 (Asp-Trp-Asn-Asn-Asp) determined the strain specificity of the monoclonal antibody. This strain-specific neutralizing determinant is located within a …


Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University Apr 1991

Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University

Santa Clara Magazine

12 - ABORTION : NO SIMPLE ANSWERS Jesuit theologian Ted Mackin examines pro-life and pro-choice positions and reports that neither side is addressing the issue with total honesty. By Theodore J. Mackin, S.J.

16 - STAY AT HOME MOMS Alumnae discuss why they decided to devote all their time and attention to their families. By Michelle Burget Fletcher '78, Brigid Modena Benham '81, and Anne Penoyer King '69

20 - SCU's WINE FAMILIES Northern California's vineyards are fertile ground for Santa Clara graduates. By Rosina Wilson

28 - WORKING THE SUICIDE HOTLINE Within these walls, no secret is too terrible …


Selection Of Genetic Variants Of Simian Immunodeficiency Virus In Persistently Infected Rhesus Monkeys, Dawn P. Wooley, Ronald C. Desrosiers Apr 1991

Selection Of Genetic Variants Of Simian Immunodeficiency Virus In Persistently Infected Rhesus Monkeys, Dawn P. Wooley, Ronald C. Desrosiers

Neuroscience, Cell Biology & Physiology Faculty Publications

Genetic and antigenic variation may be one means by which lentiviruses that cause AIDS avoid elimination by host immune responses. Genetic variation in the envelope gene (env) was studied by comparing the nucleotide sequences of 27 clones obtained from two rhesus monkeys infected with molecularly cloned simian immunodeficiency virus. All 27 clones differed from each other and differed from the input clone in the gp120 (SU) portion of the envelope gene. Nucleotide substitutions were shown to accumulate with time at an average rate of 8.5 per 1,000 per year in SU. Surprisingly, the majority of nucleotide substitutions (81%) resulted in …


Development And Characterization Of Monoclonal Antisperm Antibodies: Potential For Contraception, Dilrowshan H. Haque Apr 1991

Development And Characterization Of Monoclonal Antisperm Antibodies: Potential For Contraception, Dilrowshan H. Haque

Theses and Dissertations in Biomedical Sciences

There is an expressed need to develop a greater variety of safe contraceptive methods which would find acceptance worldwide, particularly in developing countries. Immunization against spermatozoa might be such a method as judged by the accumulated evidence from studies on human females and in a number of female animal species.

Two extraction techniques were used for sperm membrane antigen isolation. The first technique involved NP-40 detergent for antigen extraction from human motile sperm and the second technique employed homogenized human testis for antigen extraction. Using these immunogens, sperm membrane-specific monoclonal antibodies (MAbs) were developed. When these antisperm MAbs were subjected …


Nutrition Support Of Hiv+ Patients, Johanna T. Dwyer Mar 1991

Nutrition Support Of Hiv+ Patients, Johanna T. Dwyer

Henry Ford Hospital Medical Journal

Case management strategies for the nutritional support of patients infected with the human immunodeficiency virus (HIV) are evolving as the disease becomes less rapidly fatal and more chronic. Nutritional status changes in advanced HIV infection are similar in many respects to protein-calorie malnutrition. Current clinical effort and research focuses on the beneficial effects of preserving lean body mass and keeping asymptomatic patients in good nutritional status by preventing micronutrient deficiencies and by treating preexisting nutritional problems rather than attempting to intervene late in the disease's course, after secondary malnutrition has already developed. Nutrition support and intervention trials only late in …


Human Growth Hormone Treatment: Henry Ford Hospital Experience 1964-1990, David C. Leach Mar 1991

Human Growth Hormone Treatment: Henry Ford Hospital Experience 1964-1990, David C. Leach

Henry Ford Hospital Medical Journal

Treatment with human growth hormone (GH) at Henry Ford Hospital began in 1964 and has included 145 patients. A total of 68 patients were treated with extracted hormone and 77 with recombinant GH. The appearance of Creutzfeldt-Jakob disease, now five cases worldwide, in patients treated with extracted hormone abruptly stopped its use in the United States. The development of recombinant GH in 1985 has resulted in greater availability of treatment. Diagnostic criteria are now more liberal and certain patients without GH deficiency, i.e., those with the Turner syndrome, are now being successfully treated with GH. GH is expensive and its …


Chronic Pancreatitis Progressing To Duodenal Obstruction In The Absence Of Classic Symptoms, John R. Condit Jr., Dominic K. H. Wong Mar 1991

Chronic Pancreatitis Progressing To Duodenal Obstruction In The Absence Of Classic Symptoms, John R. Condit Jr., Dominic K. H. Wong

Henry Ford Hospital Medical Journal

We report the case of a 34-year-old alcoholic who was initially seen in March 1985 because of acute pancreatitis. A mass was demonstrated in the head of the pancreas. Serial sonogram and computed tomography scans over 4 1/2 years revealed progressive encroachment of the duodenum without symptoms attributable to obstruction. In 1989, three separate endoscopies with multiple biopsies showed chronic inflammation and strictures. Hypotonic duodenography confirmed stricture and obstructed duodenum. Surgical intervention is being considered. Duodenal obstruction secondary to chronic pancreatitis is rare. It may proceed subclinically for several years independent of continued alcohol use. Only when obstruction became severe …


Back Matter Mar 1991

Back Matter

Henry Ford Hospital Medical Journal

No abstract provided.


Front Matter Mar 1991

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.


A Thyroid Testing Algorithm: Results Of A Pilot Study, Hossam Ibrahim, Malachi J. Mckenna, Carolyn S. Feldkamp Mar 1991

A Thyroid Testing Algorithm: Results Of A Pilot Study, Hossam Ibrahim, Malachi J. Mckenna, Carolyn S. Feldkamp

Henry Ford Hospital Medical Journal

We conducted a pilot study to evaluate an algorithm for thyroid function testing consisting of initial serum thyrotropin values, measured by a sensitive immunoradiometric assay (TSH-IRMA) followed by a computer-directed decision to order further studies. We divided 216 outpatients according to their serum TSH-IRMA values as follows: suppressed (< 0.1 mU/L, group I); low (0.1 to 0.4 mU/L, group II); normal (0.5 to 5.0 mU/L, group III); and high (> 5.0 mU/L, group IV). Thyroxine (T4), resin uptake (RU). and free thyroxine index (FTI) tests on groups I, Il, and IV revealed that T4 and RU were normal for most patients in all groups and FTI was normal in 80% of group 1, 93.4 % of group ll, and 93.3% of …


Measurement Of Left Ventricular Ejection Fraction Using Gated 99mtc-Sestamibi Myocardial Planar Images: Comparison To Contrast Ventriculography, David A. Parker, Ramon L. Lloret, Francesco Barilla, Lori Douthat, Mihai Gheorghiade Mar 1991

Measurement Of Left Ventricular Ejection Fraction Using Gated 99mtc-Sestamibi Myocardial Planar Images: Comparison To Contrast Ventriculography, David A. Parker, Ramon L. Lloret, Francesco Barilla, Lori Douthat, Mihai Gheorghiade

Henry Ford Hospital Medical Journal

Using the new myocardial perfusion agent 99mTc-sestamibi and multigated acquisition on a nuclear medicine gamma camera, the left ventricular ejection fraction (LVEF) was derived in 13 patients with coronary artery disease (CAD). Cross-sectional activity profiles were used to measure the left ventricle from end-diastolic and end-.systolic images. Several different geometric methods were then utilized to derive ejection fractions from the nuclear data. Comparison of the resultant ejection fractions to those obtained from contrast ventriculography showed significant correlation for all geometric methods (P < 0.01,S y X x = 6.2 to 9.6). We conclude that in patients with CAD one or more of these simple geometric methods can provide a useful estimate of the LVEF when performing 99mTc-sestamibi multigated myocardial perfusion imaging.


Disturbances In Lipid Metabolism Associated With Chylothorax And Its Management, Malachi J. Mckenna, Jau-Wen Chu, Dorothy M. Kahkonen Mar 1991

Disturbances In Lipid Metabolism Associated With Chylothorax And Its Management, Malachi J. Mckenna, Jau-Wen Chu, Dorothy M. Kahkonen

Henry Ford Hospital Medical Journal

Changes in circulating lipid status were studied in a 70-year-old woman during management of chylothorax that included chest drainage, pleuroperitoneal shunting, and a successful thoracic duct ligation. Hypolipidemia with a relative decline in high-density lipoprotein (HDL) cholesterol was apparent at presentation. Following recovery, serum HDL cholesterol rose to the upper limit of normal. Apolipoprotein A-l (Apo A-l) was discordantly raised during the period of pleuroperitoneal shunting. We speculate that diversion of chylomicrons to the liver with subsequent hydrolysis accounted for a release of Apo A-l particles into the circulation at a time when the formation of HDL was compromised by …


The Phenomenology Of Cushing's Syndrome: One Patient's Account, Andrew Armstrong, J. David Fachnie Mar 1991

The Phenomenology Of Cushing's Syndrome: One Patient's Account, Andrew Armstrong, J. David Fachnie

Henry Ford Hospital Medical Journal

Cushing's syndrome caused by ectopic secretion of adrenocorticotropic hormone (ACTH) is often a serious disease and a diagnostic dilemma. In the reported patient, the source of ACTH proved to he a benign pulmonary carcinoid tumor. The patient describes his trying experiences through the six months from initial diagnosis to definitive therapy.


Cushing's Disease: Dilemmas Of Diagnosis And Management, M. Saeed-Uz-Zafar, Raymond C. Mellinger, Max Wisgerhof Mar 1991

Cushing's Disease: Dilemmas Of Diagnosis And Management, M. Saeed-Uz-Zafar, Raymond C. Mellinger, Max Wisgerhof

Henry Ford Hospital Medical Journal

Determining the cause of Cushing's disease and correcting the abnormality presents a continuing challenge to the clinician despite remarkable advances in diagnostic and therapeutic techniques. We present seven cases to illustrate 1) the classic disorder cured by pituitary adenomectomy: 2) persistence of the disease after adenomectomy: 3) Cushing's disease manifesting in the puerperium and remitting with dopamine agonist therapy: 4) a patient whose disease relapsed at least five times during 20 years of treatment by adrenalectomy, pituitary radiation, mitotane, and pituitary adenomectomy; 5) the Nelson syndrome; 6) the ectopic adrenocorticotropic hormone (ACTH) syndrome in a patient with dexamethasone suppressible urinary …


Hyperandrogenemia And Virilization With Simultaneous Pituitary And Adrenal Adenomas, Jeffrey A. Jackson, Raymond C. Mellinger Mar 1991

Hyperandrogenemia And Virilization With Simultaneous Pituitary And Adrenal Adenomas, Jeffrey A. Jackson, Raymond C. Mellinger

Henry Ford Hospital Medical Journal

We describe a postmenopausal woman who presented with virilizing hyperandrogenemia and was found to have an intrasellar tumor and a large left adrenal mass. Pathologic studies showed an undifferentiated hypophyseal adenoma with immunostaining for chromogranin only and a benign adrenocortical adenoma. In light of current understanding of the regulation of adrenal androgen secretion and adrenocortical mitogenesis, we postulate that this case may be explained by secretion of adrenal androgen-stimulating and mitogenic factors by the pituitary tumor.


Contemporary Approach To Thyroid Disease Emphasizing Use Of High-Sensitivity Thyrotropin Assays, Carolyn S. Feldkamp, Malachi J. Mckenna Mar 1991

Contemporary Approach To Thyroid Disease Emphasizing Use Of High-Sensitivity Thyrotropin Assays, Carolyn S. Feldkamp, Malachi J. Mckenna

Henry Ford Hospital Medical Journal

Capabilities of new high-sensitivity immunoradiometric assays for thyroid-stimulating hormone (TSH-IRMA) to distinguish among hypothyroid, euthyroid, and hyperthyroid subjects and patient groups with low TSH for nonthyroidal causes suggested an algorithmic approach (directed TSH) to the evaluation of patients with suspected thyroid disease. Utilizing the algorithm, a TSH-IRMA result outside normal limits (0.5 to 5.0 mUlL) generates follow-up tests on the same sample. The interpretation of thyroid function tests (TSH-IRMA, thyroxine, resin uptake, free thyroxine index) and associated studies in the context of different clinical settings is reviewed. The approach is a cost-effective and efficient utilization of laboratory services.