Spontaneous autoinflation of saline mammary implants: further studies.

Background: Previous studies have reported a hyperinflation of saline-filled breast implants. On removal, the implant fluid had changed from clear saline to a yellowish-brown color, with a viscous consistency similar to serum.

Objective: Our objective was to identify further the components of saline from implants that had undergone spontaneous autoinflation.

Nursing workforce. Skirting the issue.

A study of part-time nurses in three London trusts found that they were concentrated in lower grades and less likely to be involved in management than full-time nurses. While senior managers in the trusts were fully committed to flexible working, managers lower in the organisation felt that part-time working presented problems for continuity of care, and that part-time nurses were unwilling to work unsocial hours. A more strategic approach is needed to ensure that part-time nurses are employed most effectively at a time of acute nursing shortages.

Abnormal electrical stimulus of an intra-aortic balloon pump with concurrent support with continuous veno-venous hemodialysis.

Malfunction of electronic medical support apparatus utilized in the ICU usually causes system failure. We report several occurrences of a potentially dangerous interaction between a continuous veno-venous hemodialysis (CVVHD) system and an intra-aortic balloon pump (IABP) counterpulsation device in four patients requiring both systems. The patients had acute renal failure in the face of multi-organ failure and were dependent upon the balloon pump for pressure support.

Spontaneous autoinflation of saline mammary implants.

This study was prompted by 5 patients (seen by OGR) presenting with unilateral enlargement of the breasts 4 to 9 years following augmentation mammaplasty with saline-filled implants. At exploration one breast implant was seen to be markedly enlarged when compared to the other, with a brownish yellow material that had the consistency of serum. Studies were undertaken to determine the permeability of the silicone container to various body fluids and a study of the contained fluid itself.

Effect of mineral oil on porcine urothelium.

Mineral oil has been used to facilitate ureteral stone extraction and to treat selected patients with infected residual urine. The purpose of this study was to evaluate the effect of mineral oil on the urothelium. Twelve adult female farm pigs underwent bilateral ureteral catheter placement under general endotracheal anesthesia.

Bicarbonate dialysate for continuous renal replacement therapy in intensive care unit patients with acute renal failure.

Lactate-buffered peritoneal solution traditionally has been used as dialysate for continuous renal replacement therapy (CRRT) in the United States because no bicarbonate solution is commercially available. Since 1994, the Cleveland Clinic Foundation Dialysis Unit has prepared a bicarbonate solution (sodium 144 +/- 3 mEq/L, HCO3 37 +/- 2 mEq/L, potassium 3 or 4 mEq/L, calcium 3.0 +/- 0.

Analysis of explanted silicone implants: a report of 300 patients.

Breast implants from 300 consecutive patients during the 35-month period from February 1, 1991 to January 1, 1994 were examined. Of these, 214 (71.3%) patients had disruption (frank rupture or severe silicone bleed or both) of one or both implants.

Blood flow in single surface arterioles and venules on the mouse somatosensory cortex measured with videomicroscopy, fluorescent dextrans, nonoccluding fluorescent beads, and computer-assisted image analysis.

Cortical surface vessels were monitored through closed cranial windows with an epifluorescence microscope and SIT or ICCD cameras. Fluorescent dextrans or 1.3 microns latex beads were injected into the contralateral jugular vein for plasma labeling and for vascular transits.

Partial nucleotide sequence of the enzyme pyruvate, orthophosphate dikinase of Entamoeba histolytica HM1:IMSS.

We isolated a clone from a lambda gt11 cDNA library of E. histolytica, subcloned its insert in the vector pTZ18R and sequenced it by the method of Sanger. Sequence comparison with Genbank and of the corresponding amino acid sequence with the NBRF/PIR data bank using the FastA program, showed homologies between 54.

Use of temocillin in typhoid fever, hepatobiliary disease and other infections.

During 1980-1984, 51 patients with enteric fever (typhoid/paratyphoid fever and salmonellosis) biliary tract sepsis, and other Gram-negative infections were treated with temocillin at 3 medical centres in Bangkok, Thailand. This article summarises the results in the 42 evaluable patients (14 males, 28 females); 10 patients with enteric fever, 2 patients with salmonellosis; 12 patients with biliary tract sepsis, and 18 patients with other Gram-negative infections. Overall, 86% of the patients were clinically cured or improved.

Bactericidal capacity of newborn phagocytes against group B beta-hemolytic streptococci.

The bactericidal capacity of mononuclear and polymorphonuclear phagocytes obtained from normal newborn infants and from healthy adults was evaluated in vitro, using two group B beta-hemolytic streptococci (GBBHS) serotypes (GBBHS-Ia-SS-615/28 and GBBHS-III-SS-620/50) and uniform opsonic conditions. No intertype differences in bacteriolysis of these two serotypes were observed among leukocytes from newborns or adults. As group, only polymorphonuclear phagocytes from newborns disclosed a significantly lower mean bactericidal capacity than their adult cellular counterpart, and only with respect to GBBHS-III-SS-620/50.

In vitro production of Rauscher murine leukemia virus: influence of culture age on biological properties.

Large-scale production and concentration procedures have been standardized to study the biological properties of Rauscher leukemia virus produced from the high-passaged JLS-V9-H mouse bone marrow cell line. Virus produced early (days 4 to 6) in the harvest and refeed cycle contained higher levels of ribonucleic acid-directed deoxyribonucleic acid polymerase activity and was more infectious than Rauscher leukemia virus produced later (days 7 to 10) in the growth period. The peak of virus production as detected by physical assays (virus particle count, protein, and p30 antigen) was highest at day 6, whereas the optimum biological and ribonucleic acid-directed deoxyribonucleic acid polymerase activity occurred 24 h earlier.

Large-scale production of mouse mammary tumor virus in the absence of endogenous murine leukemia virus.

A system for the large-scale production and purification of mouse mammary tumor virus in the absence of detectable endogenous murine leukemia virus is described. By utilizing the Mm5mt/c1 cell line established from an adenocarcinoma of a C3H mouse, the continuous production of over 25,000 liters of mouse mammary tumor virus-containing tissue culture fluids has been achieved. By the strict adherence to well-defined tissue culture conditions, mammary tumor virus production was accomplished without the expression of murine leukemia virus.

Enhanced production of Rauscher leukemia virus after infection of high-passaged JLS-V9 cells.

JLS-V9, a mouse bone marrow cell line infected with Rauscher leukemia virus at high passage level, produced larger amounts of virus than the standard JLS-V10 cells. The enhanced virus production was attributed to the increased saturation density of JLS-V9 cells.

NCTR computer systems designed for toxicological experimentation. II. Experiment start-up system.

The Experiment Start-Up System (ESS) developed and implemented at the National Center for Toxicological Research constructs models from information contained in experimental protocols. These models may then be used to project resource requirements and related schedules. Each experimental model provides information from which management can determine the raw resources such as quantity of food, water, bedding, cages, animals (sex, strain, species), chemical, facilities, and manpower needed for conducting the experiment.

Quantitative immunoelectrophoretic assay for murine oncornavirus p30: noncovalent facilitation by sodium dodecyl sulfate.

Treatment of Rauscher murine leukemia virus lysates with the anionic detergent sodium dodecyl sulfate (SDS) at concentrations between 0.2 to 2.0% SDS per mg of viral protein greatly increased the anodal electrophoretic mobility of p30, the major internal polypeptide.

A comparative study of talampicillin and ampicillin in general practice.

Talampicillin hydrochloride, the phthalidyl ester of ampicillin, when given in a dosage containing the equivalent of 125 mg of ampicillin four times daily for six days to general practice patients, has proved to be as effective, both clinically and bacteriologically, as 250 mg of ampicillin given four times daily for six days. Although the over-all incidence of side-effects was similar with both preparations, diarrhoea was significantly reduced in talampicillin-treated patients. Possible reasons for this are discussed.

Method for reproducible large-volume production and purification of Rauscher murine leukemia virus.

Rauscher murine leukemia virus was produced in roller-bottle cultures of chronically infected JLS-V9 cells. Virus from this culture fluid was concentrated and purified by two semi-isopycnic bandings in sucrose gradients. Virus material obtained from young, nonconfluent cultures (early-harvest virus) yielded products characteristically containing endogenous ribonucleic acid-dependent deoxyribonucleic acid polymerase with high specific activity (400 to 1,000 pmol of [3H]thymidine 5'-triphosphate incorporated per milligram of protein per hour).