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Biomedical subjects

J B Johnson

Publications and source records attributed to J B Johnson.

103 records · Page 6Linked to original sources
PubMedDate not supplied

Computed tomography with intraperitoneal contrast medium for localization of peritoneal dialysis leaks.

Dialysate leakage into subcutaneous tissues occurs not uncommonly in patients on continuous ambulatory peritoneal dialysis. When the leakage site cannot be localized clinically, CT with intraperitoneal contrast medium administration may localize the site. We report our experience with three cases in which this technique did localize the leakage site and thereby determined the type of surgical correction.

Abdominal Muscles↗
PubMedDate not supplied

An enzyme-linked immunosorbent assay for detection of Bordetella avium infection in turkey flocks: sensitivity, specificity, and reproducibility.

An enzyme-linked immunosorbent assay (ELISA) for detection of Bordetella avium infection in turkey poults was developed. One-week-old poults challenged intratracheally with 10(12) colony-forming units of B. avium had detectable titers (greater than or equal to 11), with an average of 13.6% positive samples when the birds were 6 to 11 weeks old. The method was sensitive enough to detect maternal antibodies to B. avium in poults up to 3 weeks of age. The same poults challenged at 1 week of age had 100% tracheal infection up to 3 weeks of age, which dropped to 0% by 6 weeks. The method resulted in no false-positive samples (titer = 0) from birds not infected with B. avium and tested weekly between 4 and 11 weeks of age. Antibodies in turkey flocks infected with Newcastle disease virus, hemorrhagic enteritis virus, and Mycoplasma meleagridis, and birds infected with Escherichia coli had no apparent cross-reactivity to the B. avium antigens used in the ELISA. The percentages of B. avium-positive serum samples collected from different turkey flocks did not significantly differ (P greater than 0.05) when samples were tested by the developed ELISA at different times, an indication of the reproducibility of the method.

Animals↗
PubMedDate not supplied

Characteristics of Actinomyces pyogenes involved in lameness of male turkeys in north-central United States.

A new condition of clinical lameness in 20 male turkey flocks of North-Central United States, associated with isolation of gram-positive rod bacteria from lesions of osteomyelitis, is characterized. The characterization confirmed the randomly selected isolates as Actinomyces pyogenes based on macroscopic and microscopic observations and 17 biochemical tests. The disease was reproduced within 3 weeks in all male turkeys, following an intravenous challenge at 15 weeks of age. The agar gel precipitin test and immunoblotting confirmed the antigenic similarity of the isolates recovered from the osteomyelitis lesions of lame birds.

Actinomyces↗
PubMedDate not supplied

A multifaceted rehabilitation program for women with cancer.

A multifaceted rehabilitation program for women diagnosed with cancer includes a personal fitness plan, aerobic exercise classes, journaling, and a six-day environmental wilderness experience. The program's purpose is for participants to learn how to cope with uncertainties in life and to promote a wellness concept for living with cancer. This is achieved through successfully meeting the challenges of the program. A descriptive study, using journal entries of the pilot group's 12 women with breast cancer, provides insight into participants' views of the program. Their responses described: personal growth through succeeding at new and difficult experiences; normalization engendered by communicating with others having cancer; exhilaration at focusing on challenging events external to personal health problems; and courage that overrode their fears of facing what seemed impossible.

Adaptation, Psychological↗
PubMedDate not supplied

Crossover second toe deformity: etiology and treatment.

The pathogenesis, etiology, diagnostic features, and treatment of the crossover second toe deformity are discussed in this manuscript. The crossover second toe deformity is an undescribed entity in podiatric literature. Two cases are presented by the authors to illustrate the deformity and surgical correction.

Aged↗
PubMedDate not supplied

An inexpensive four channel demodulator for use in recording sleep biodata in the home environment.

An inexpensive four channel demodulator was developed for use with our existing four channel FM recording system to acquire sleep biodata in the home environment. The demodulator uses four Phase Lock Loop (PLL) circuits for demodulation with capture frequencies selected from the standard IRIG Proportional-Bandwidth FM subcarrier frequencies. Four channels (EMG, EEG and two EOG) may be recorded for six hours at the subject's/ patient's home on a standard 7 1/2 inch reel audio recorder; it may be played back the following day through the demodulator and recorded on a standard laboratory polygraph for subsequent scoring and analysis. The portable home sleep recording system is inexpensive to build (our cost, excluding development, was $160.00); it would be useful to sleep researchers and clinicains interested in comparing sleep in the home versus sleep in the lab, and allows recording of sleep in patients who are reluctant or unable to have their sleep recorded in a laboratory setting.

Electroencephalography↗
PubMedDate not supplied

Description of osteomyelitis lesions associated with Actinomyces pyogenes infection in the proximal tibia of adult male turkeys.

Actinomyces pyogenes was isolated from osteomyelitis lesions from the proximal tibia of mature tom turkeys. Gram-stained impression smears of the lesions resulted in bacteria that appeared as club-shaped, gram-positive pleomorphic rods. The bacteria grew better in a reduced-oxygen environment. The lesions were well demarcated and cavernous, ranging from purulent to caseous in consistency.

Actinomycosis↗