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Articles 38761 - 38790 of 42088

Full-Text Articles in Medicine and Health Sciences

Characterization Of Chromosome Fragmentation In Two Protozoans And Identification Of A Candidate Fragmentation Sequence In Euplotes Crassus, Scott Everet Baird, Lawrence A. Klobutcher Jan 1989

Characterization Of Chromosome Fragmentation In Two Protozoans And Identification Of A Candidate Fragmentation Sequence In Euplotes Crassus, Scott Everet Baird, Lawrence A. Klobutcher

Biological Sciences Faculty Publications

Following the sexual cycle, hypotrichous ciliated protozoans fragment a set of their micronuclear chromosomes to generate the thousands of short, linear DNA molecules present in the transcriptionally active macronucleus. We have used a hybrid selection procedure to examine macronuclear DNA molecules for subtelomeric length heterogeneity to determine whether chromosome fragmentation occurs at unique or multiple sites. The results suggest that multiple, but closely spaced, chromosome fragmentation sites are used by Oxytricha nova. In contrast, Euplotes crassus uses unique chromosome fragmentation sites in a reproducible manner to generate the ends of macronuclear DNA molecules. Additional studies compared DNA sequences in …


The Amino Acid Sequence Of The Adult Sumatran Tiger (Panthera Tigris, Carnivora) Hemoglobins, Meeno Jahan, Aftab Ahmed, Gerhard Braunitzer, Reinhard Göltenboth Jan 1989

The Amino Acid Sequence Of The Adult Sumatran Tiger (Panthera Tigris, Carnivora) Hemoglobins, Meeno Jahan, Aftab Ahmed, Gerhard Braunitzer, Reinhard Göltenboth

Pharmacy Faculty Articles and Research

The complete amino-acid sequences of the hemoglobins from the adult Sumatran tiger (Panthera tigris sumatrae) have been determined on automatic liquid- and gas-phase sequenators. The globin chains were isolated by reverse phase HPLC on a column of Nucleosil-C4.7V-Acetylserine was detected by FAB-mass spectroscopy as TV-terminal amino acid residue of the βI chain. Comparing the sequences of the globin chains of the tiger with that of human Hb-A, 23 substitutions were recognized in the a, 29 in βI and 28 in the βII chain.


Isolation And Immunological Characterization Of A Group Of New B Lymphomas From Cba Mice, Venkatachalam Udhayakumar, Peter H. Brodeur, M. S. Rajagopalan, Stephen Zimmer, Karen E. Pollok, Subbarao Bondada Jan 1989

Isolation And Immunological Characterization Of A Group Of New B Lymphomas From Cba Mice, Venkatachalam Udhayakumar, Peter H. Brodeur, M. S. Rajagopalan, Stephen Zimmer, Karen E. Pollok, Subbarao Bondada

Microbiology, Immunology, and Molecular Genetics Faculty Publications

We have isolated and characterized a new series of B lymphomas which occurred spontaneously in a group of CBA N mice that were transferred with spleen or lymph node cells from 24-month-old CBA Ca mice. Tumor cell lines from six CBA N mice that received spleen cells were rescued and designated as BKS-2, BKS-3, BKS-4, BKS-5, BKS-6, and BKS-7. Also, tumor cells from a recipient of lymph node cells were rescued and the resulting cell line was designated BKL. These tumor cells expressed membrane immunoglobulin (μ,κ), major histocompatibility complex Class I and Class II molecules, B220, Lyb8, Fc receptors, J11d, …


A Specific Defect In The Proliferative Capacity Of B Cells From Old Mice Stimulated With Autoreactive T Cells, Prakash S. Nagarkatti, Aruna Seth, Mitzi Nagarkatti, Natarajan Muthusamy, Barbara Rychlik, Subbarao Bondada Jan 1989

A Specific Defect In The Proliferative Capacity Of B Cells From Old Mice Stimulated With Autoreactive T Cells, Prakash S. Nagarkatti, Aruna Seth, Mitzi Nagarkatti, Natarajan Muthusamy, Barbara Rychlik, Subbarao Bondada

Microbiology, Immunology, and Molecular Genetics Faculty Publications

B lymphocytes from aged mice were found to be defective in their ability to proliferate in response to stimulation with an autoreactive T cell clone D1.4. The differentiative response leading to antibody secretion was also impaired in the auto D1.4 T cell-stimulated B cells from old mice in comparison to similarly stimulated B cells from young mice. The B cells from old mice were competent in activating the autoreactive T cells such that the T cells were induced to proliferate. The B cell defect appears to be restricted to a certain phase of B cell activation, since old mouse B …


Weighing Scales For Sheep Do Pay, W D. Roberts Jan 1989

Weighing Scales For Sheep Do Pay, W D. Roberts

Journal of the Department of Agriculture, Western Australia, Series 4

Sheep producers can improve production by using weighing scales and keeping accurate records of weights.

Withiut some objective measurement, such as weighing, producers have no accurate method of identifying the heaviest, lightest and average weight of a group of sheep.

They could try to esstimate weight by eye - but most people are poor judges of body weight.


Case Report Of Human Infection With Capillaria Philippinensis, Ching-Yu Chen, Wei-Chuan Hsieh, Tsang-Lie Chen Jan 1989

Case Report Of Human Infection With Capillaria Philippinensis, Ching-Yu Chen, Wei-Chuan Hsieh, Tsang-Lie Chen

Harold W. Manter Laboratory of Parasitology: Library Materials

In July 1988, a case of human infection with Capillaria philippinensis, so-called the intestinal capillariasis, was discovered at the National Taiwan University Hospital (NTUH). This is the first case reported in Taiwan.

Capillaria philippinesis is a parasite of fish-eating birds In nature it has a fish-bird life cycle. When human populations disrupt the natural cycle by eating raw fish infected with the larvae of C. philippinensis, they may acquire the disease.


A Mimbres Burial With Associated Colon Remains From The Nan Ranch Ruin, New Mexico, Harry J. Shafer, Marrianne Marek, Karl J. Reinhard Jan 1989

A Mimbres Burial With Associated Colon Remains From The Nan Ranch Ruin, New Mexico, Harry J. Shafer, Marrianne Marek, Karl J. Reinhard

Karl Reinhard Publications

The skeletal remains of an adult male associated with desiccated tissue and a coprolite were recovered from an apen-air midden deposit at the NAN Ranch Ruin (LA15049)) a large Mimbres site in Grant County) New Mexico. The find dates to about A.C. 1000-1100. Identifiable macroscopic elements in the caprolite consist offi nely fragmented corn and tiny seed fragments of an unknown plant. High amounts of willow (Salix) and mustard (Brassicaceae) pollen may indicate the ingestion of medicinal plants to combat a deteriorating health condition. The individual was approximately 35 -40 years old at the time of death and suffered from …


Bioarcheological Synthesis For "From The Gulf To The Rio Grande: Human Adaptation In Central, South, And Lower Pecos Texas", Karl Reinhard, Ben W. Olive, D. Gentry Steele Jan 1989

Bioarcheological Synthesis For "From The Gulf To The Rio Grande: Human Adaptation In Central, South, And Lower Pecos Texas", Karl Reinhard, Ben W. Olive, D. Gentry Steele

Karl Reinhard Publications

One of the main problems encountered in the review of the bioarcheology of Region 3 has been the limited number of sites where human skeletal material has been adequately recovered and analyzed. In the preceding chapter it was documented that less than 30% of the burials recovered from recorded sites have been reported in published literature. It was further estimated that of the 323 sites with burials, no more than 80 sites have published detailed bioarcheological reports on the burials recovered. Only 50 of these 80 reports provide individual descriptions of each burial which facilitate subsequent analyses and evaluation.

Four …


Effects Of Methylxanthines On Newborn Rat Respiration, Craig Gatto Jan 1989

Effects Of Methylxanthines On Newborn Rat Respiration, Craig Gatto

Masters Theses

Methylxanthines (MX), such as theophylline, are commonly used in the treatment of recurrent apnea due to their stimulant effects on the respiratory center. Structure-activity studies have demonstrated that substitution of alkyl groups on the 3-position of the xanthine nucleus results in increased bronchodilator potency, while substitution on the 1-position is important for adenosine antagonism and CNS stimulation. Three different alkylxanthines were studied to determine the structural requirements for respiratory stimulation. Respiratory rates and volumes were determined in 4- to 7-day-old rats using a volume displacement body plethysmograph. Measurements were made before and at 5 minute intervals after subcutaneous (s.c.) injection …


Quinidine-Induced Immune Thrombocytopenia, Mansoor Saleh, Nadhav Dhodaphar, Karren Allen, Albert Lobuglio Jan 1989

Quinidine-Induced Immune Thrombocytopenia, Mansoor Saleh, Nadhav Dhodaphar, Karren Allen, Albert Lobuglio

Haematology and Oncology, East Africa

D rugs may cause thrombocytopenia by three principal mechanisms: suppression of platelet production, direct platelet toxicity, or antibody-mediated platelet destmction (1). With the advent of assays specifically capable of detecting and quantifying IgG on the platelet surface (2), it has become increasingly possible to recognize cases of drug-induced immune thrombocytopenia based on the detection of elevated levels of platelet surface bound IgG in association with ingestion of causative dmgs. Consequendy, dmg-induced immune thrombocytopenia is no longer a disease diagnosed primarily by exclusion. The occurrence of quinidine-induced thrombocytopenia, though uncommon, was documented as early as 1965 (3) and has been thought …


Effect Of Intravenous Gammaglobulin On Circulating And Platelet-Bound Antibody In Immune Thrombocytopenia, G Garbano, Mansoor Saleh, P G. Mori, A F. Lobuglio, D Shaw Jan 1989

Effect Of Intravenous Gammaglobulin On Circulating And Platelet-Bound Antibody In Immune Thrombocytopenia, G Garbano, Mansoor Saleh, P G. Mori, A F. Lobuglio, D Shaw

Haematology and Oncology, East Africa

Ten patients with idiopathic thrombocytopenic purpura (ITP) were studied before and following a rise in circulating platelets subsequent to infusions of intravenous gammaglobulin (400 mg/kg/day x 5 days). We quantitated the amount of circulating IgG capable of binding to normal donor platelets in vitro using an 125I-monoclonal anti-human IgG assay, as well as the amount of IgG associated with the patients' platelets before and following therapy. We found no evidence for a decrease in platelet-specific IgG antibodies in these patients undergoing an acute response to therapy. These data suggest that the short-term efficacy of intravenous gammaglobulin is due to effects …


Bladder Catheter Knotting: A Case Report, Mark G. Goetting Dec 1988

Bladder Catheter Knotting: A Case Report, Mark G. Goetting

Henry Ford Hospital Medical Journal

No abstract provided.


Prevalence Of Respiratory Symptoms And Allergic Sensitivity In Multiply Handicapped Children, Dennis R. Ownby, Mary Logan, Ruth Ann Belfi Dec 1988

Prevalence Of Respiratory Symptoms And Allergic Sensitivity In Multiply Handicapped Children, Dennis R. Ownby, Mary Logan, Ruth Ann Belfi

Henry Ford Hospital Medical Journal

Among the many challenges of providing care for children with multiple physical and developmental handicaps is the proper management of their respiratory difficulties. This study was designed to evaluate the prevalence of respiratory symptoms in children attending a multidisciplinary clinic for handicapped children. We also used several methods to estimate the prevalence of allergic sensitivity in children with respiratory complaints. Questionnaires concerning respiratory symptoms were completed by the parents of 104 patients. The most frequent complaint reported was snoring in 41% of the children. Of the 39% who had multiple respiratory symptoms, 85% had detectable allergen- specific IgE to cat, …


Front Matter Dec 1988

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.


Attention Deficit Disorder: An Overview, Wiley C. Rasbury Dec 1988

Attention Deficit Disorder: An Overview, Wiley C. Rasbury

Henry Ford Hospital Medical Journal

No abstract provided.


Child Life: Meeting The Psychosocial Needs Of Children And Families In The Hospital, Christine O. Newman, Carol G. Klingbeil, Roberta B. Abrams Dec 1988

Child Life: Meeting The Psychosocial Needs Of Children And Families In The Hospital, Christine O. Newman, Carol G. Klingbeil, Roberta B. Abrams

Henry Ford Hospital Medical Journal

No abstract provided.


The Expanding Spectrum Of Pediatric Practice, Jeffrey M. Devries Dec 1988

The Expanding Spectrum Of Pediatric Practice, Jeffrey M. Devries

Henry Ford Hospital Medical Journal

No abstract provided.


Perinatal Idiopathic Hemochromatosis, Usha B. Raju, Sudhakar Ezhuthachan, Chan K. Ma Dec 1988

Perinatal Idiopathic Hemochromatosis, Usha B. Raju, Sudhakar Ezhuthachan, Chan K. Ma

Henry Ford Hospital Medical Journal

We report the clinicopathologic features of an infant who died of a rare form of perinatal cirrhosis associated with idiopathic hepatic and extrahepatic parenchymal siderosis. The infant appeared normal at birth but soon became severely ill, following a progressively downhill course associated with hypoglycemia, metabolic acidosis, bleeding diathesis, jaundice, and shock. The infant died at 7 days of age. The manifestations were those of hepatic failure but mimicked sepsis and disseminated intravascular coagulation. Cirrhosis, giant cell transformation, and parenchymal iron deposition characteristic of perinatal idiopathic hemochromatosis, a recently emerging clinicopathologic entity of unknown etiology, were present in this infant. These …


Ovarian Failure In A Chromosomally Competent Adolescent Female: A Case Report, T. Jann Caison-Sorey Dec 1988

Ovarian Failure In A Chromosomally Competent Adolescent Female: A Case Report, T. Jann Caison-Sorey

Henry Ford Hospital Medical Journal

Primary ovarian failure in adolescence is uncommon. This report depicts such a case in a 17 1/2-year old girl whose investigation revealed elevations in the follicle-stimulating hormone and luteinizing hormone levels in association with a low estrogen level. The blood leukocyte chromosome analysis with Giemsa banding revealed a 46,XX chromosomal complement. Pelvic ultrasound disclosed a rudimentary uterus and a small left ovary. Hormonal replacement has resulted in advancement of secondary sexual characteristics and monthly withdrawal bleeding.


A Practical Approach To Infantile Apnea, Gregory Preston Dec 1988

A Practical Approach To Infantile Apnea, Gregory Preston

Henry Ford Hospital Medical Journal

No abstract provided.


Validation Of Electronic Rectal Thermometry, Mark G. Goetting, Karen Stratton Dec 1988

Validation Of Electronic Rectal Thermometry, Mark G. Goetting, Karen Stratton

Henry Ford Hospital Medical Journal

Electronic rectal thermometry is performed routinely in most medical centers. While electronic thermometry has been validated at the oral site, rectal measurement has not. We performed a controlled study on 84 children comparing mercury-in-glass and electronic thermometry at the rectal site. No significant difference occurred in temperatures between the two methods. We conclude that the electronic thermometer is a valid instrument to measure rectal temperature.


Pediatric Emergency Care: A Survey Of Michigan Emergency Departments, David J. Treloar, Gregory Preston, Fred Lamb Dec 1988

Pediatric Emergency Care: A Survey Of Michigan Emergency Departments, David J. Treloar, Gregory Preston, Fred Lamb

Henry Ford Hospital Medical Journal

Recent studies suggest a lack of preparation in emergency medical systems for pediatric patients. Michigan emergency departments were surveyed to determine their degree of preparedness regarding equipment, space, and pediatric on-call coverage. More than 50% of responding emergency departments did not have a pediatrician on call and lacked a pediatric "crash cart," and 34% had to send their personnel to other areas in the hospital to obtain pediatric equipment during resuscitations. This survey suggests a lack of preparation for pediatric emergencies in Michigan.


The Role And Success Of School-Based Clinics, Terence A. Joiner Dec 1988

The Role And Success Of School-Based Clinics, Terence A. Joiner

Henry Ford Hospital Medical Journal

No abstract provided.


Setting Up An Adolescent Clinic In A Suburban Pediatric Office Group Practice, Patricia K. Stoltz, Kathleen B. Blumer Dec 1988

Setting Up An Adolescent Clinic In A Suburban Pediatric Office Group Practice, Patricia K. Stoltz, Kathleen B. Blumer

Henry Ford Hospital Medical Journal

Teenagers in the United States experience significant mortality and morbidity because of high-risk behaviors. Adolescents need routine health supervision aimed at reducing these risks. A Teen Clinic within the Pediatrics Clinic at the Henry Ford Hospital Fairlane Center offers separate facilities, longer appointments, and an emphasis on adolescent issues. This plan is a model for practitioners in various office settings who seek to improve adolescent care.


Isolated Cataplexy: A Familial Study, Kristyna M. Hartse, Frank J. Zorick, Jeanne M. Sicklesteel, Thomas Roth Dec 1988

Isolated Cataplexy: A Familial Study, Kristyna M. Hartse, Frank J. Zorick, Jeanne M. Sicklesteel, Thomas Roth

Henry Ford Hospital Medical Journal

Four members of a family, a mother, her two sons, and the mother's second cousin, presented with a history of isolated cataplexy without excessive daytime sleepiness or other symptoms typical of narcolepsy. They were polygraphically monitored during one night followed by a day of multiple nap tests. No subject manifested objective daytime sleepiness as measured by short latencies to sleep onset during daytime naps, and no subject exhibited periods of sleep onset rapid eye movement sleep in either the night or nap recordings. The incidence of isolated cataplexy in this family was traced by history through six generations. We conclude …


The Development Of Pediatrics In The United States, Jay H. Mayefsky Dec 1988

The Development Of Pediatrics In The United States, Jay H. Mayefsky

Henry Ford Hospital Medical Journal

No abstract provided.


Duplication And Deletion 11q23-Q24 Recombinants In Two Offspring Of An Intrachromosomal Insertion ("Shift") Carrier, Miriam G. Forsythe, Hugh Walker, Lester Weiss, Jacquelyn R. Roberson, Maria J. Worsham, V. Ramesh Babu, Daniel L. Van Dyke Dec 1988

Duplication And Deletion 11q23-Q24 Recombinants In Two Offspring Of An Intrachromosomal Insertion ("Shift") Carrier, Miriam G. Forsythe, Hugh Walker, Lester Weiss, Jacquelyn R. Roberson, Maria J. Worsham, V. Ramesh Babu, Daniel L. Van Dyke

Henry Ford Hospital Medical Journal

Few examples of intrachromosomal insertions have been described. These usually result from deletion of a segment of chromosome material, with insertion of the deleted material elsewhere on the same chromosome. Previous insertional translocations have been identified through a proband who has either a deletion or a duplication of the inserted segment. We describe a family which has two probands, one with a duplication and one with a deletion of the inserted segment. The unbalanced chromosomes probably resulted from an uneven number of crossovers between the breakpoints in the chromosome 11 of the father, who carries a balanced intrachromosomal insertion of …


Serum Creatinine Concentrations In Healthy Newborns: Reference Ranges During The First Five Days Of Life, Jennie Andreson, Jaime Alfredo Zegarra, Carlos Alberto Estrada, Francis Dumler Dec 1988

Serum Creatinine Concentrations In Healthy Newborns: Reference Ranges During The First Five Days Of Life, Jennie Andreson, Jaime Alfredo Zegarra, Carlos Alberto Estrada, Francis Dumler

Henry Ford Hospital Medical Journal

Serum creatinine concentrations were studied in 52 healthy, full-term infants (29 males and 23 females) during the first five days of life. At birth, mean serum creatinine concentration was 0.76 ± 0.13 mg/dL. At 6 hours of life, values increased to 0.97 ± 0.11 mg/dL (P < 0.001) and remained elevated for 24 hours. Values then returned to baseline so that serum creatinine concentrations were 0.81 ± 0.15 mg/dL at 48 hours and 0.6l ± 0.15 mg/dL at 3 to 5 days of age. At birth, serum creatinine concentrations were higher in males than in females (0.80 ± 0.13 versus 0.71 ± 0.11 mg/dL, respectively; P < 0.009). However, the increases in serum creatinine concentration observed after birth were similar in both sexes. This is the first report of a prospective longitudinal study of serum creatinine concentrations between birth and 3 to 5 days of age in a Hispanic population. In addition, data were analyzed by sex. The results are a useful reference for normal serum creatinine concentrations in early life.


The Pediatrician's Guide To Food Allergy, John A. Anderson Dec 1988

The Pediatrician's Guide To Food Allergy, John A. Anderson

Henry Ford Hospital Medical Journal

Food allergy occurs in as many as 5% of infants less than 1 year old. Most food sensitivities disappear by age 3 to 4. Most immunologically mediated food allergy reactions are due to type I IgE mechanisms, with skin, gastrointestinal, and respiratory signs and symptoms the most common manifestations. U sing the double-blind, placebo-controlled food challenge (DBPCFC) technique and atopic dermatitis as a model, the most common foods to which children are allergic are cow's milk, eggs, peanuts, wheat, fish, and soy proteins. Anaphylactic sensitivity in older children often involves crustacean seafoods (eg, shrimp), nuts, peanuts, fish, and eggs. Such …


The Circumcision Decision: A Plea For Informed Consent, Theresa Spinelli Dec 1988

The Circumcision Decision: A Plea For Informed Consent, Theresa Spinelli

Henry Ford Hospital Medical Journal

No abstract provided.