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Article
Fluorocarbon Emulsions as a Blood Substitute
In 1966 CLARK discovered that animals breathing certain perfluorinated liquids can transfer enough oxygen and carbon dioxide to sustain life [Science 152: 1755, 1966]. This suggested that these liquids may serve ...
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Article
Echocardiography in the diagnosis of neonatal congenital heart disease
Since its introduction in 1954, diagnostic ultrasound has been used to record the movement of atrio-ventricular valves, to measure atrial and ventricular dimensions, left venticular free wall thickness, left v...
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Chapter
Recent Advances in the Preparation and Use of Perfluorodecalin Emulsions for Tissue Perfusion
At the present time there are no perfusion media, aside from those containing red blood cells, which carry sufficient oxygen to maintain organs having a high QO2. Resort is made to hypothermia, hyperbaria, and pe...
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Article
In vivo translation of amber and ochre codons in Escherichia coli
By making certain assumptions, we have provided evidence which indicates that: amber and ochre codons function in vivo, the bulk of the E. coli mRNA is polycistronic, intercistronic space may correspond to no mor...
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Article
ECHOCARDIOGRAPHIC ASSESSMENT OF PATENT DUCTUS ARTERIOSOS IN PREMATURES WITH RESPIRATORY DISTRESS
Non-invasive evaluation of significant left to right shunting through a patent ductus arteriosus (PDA) is difficult in premature infants with respiratory distress. Sixteen infants (gestation 26-36 weeks; weigh...
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Article
NON-INVASIVE RIGHT AND LEFT SYSTOLIC TIME INTERVALS BY ECHOCARDIOGRAPHY
Evaluation of left ventricular performance has been possible by the measurement of systolic time intervals (STI's). However non-invasive assessment of right ventricular performance has been difficult because i...
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Chapter
Pre- and Postoperative Echographic Investigation of Left Ventricular Function in Aortic Stenosis (AS)
The purpose of this study was to serially evaluate non-invasively the results of surgery upon left ventricular function in children with significant AS. Six groups of patients were evaluated: aortic stenosis −...
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Article
Expression and stability of Escherichia coli F-prime factors in Proteus mirabilis
The expression and stability of Escherichia coli F-primes in Proteus mirabilis is examined. It is possible to consecutively introduce, and stably maintain, the DNA of several E. coli F-primes in P. mirabilis in t...
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Article
NON-INVASIVE ESTIMATION OF LEFT TO RIGHT SHUNTS USING ECHOCARDIOGRAMS AND RADIONUCLIDE ANGIOCARDIOGRAPHY
Echocardtography (echo) has been used in children with ventricular septal defects (VSD) to estimate the magnitude of left to right shunt (Qp/Qs) and has been correlated with Qp/Qs measured by Fick method using...
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Article
SPECTRUM OF EXERCISE RESPONSES IN CHILDREN WITH AORTIC STENOSIS
Significant abnormalities in cardiovascular dynamics may occur during exercise (Ex) in patients (P) with aortic stenosis (AS). This study was designed to record systolic pressure (ESP), electrocardiogram (ECG)...
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Article
Changes in Rhodopseudomonas sphaeroides isoaccepting phenylalanyl-tRNA species during transitions from chemoheterotrophic to photoheterotrophic growth
A new iso-accepting tRNAphe from extracts of chemoheterotrophic and photoheterotrophic cells of Rhodopseudomonas sphaeroides has been identified by both BDEAE cellulose and RPC-5 chromatography. Rechromatography ...
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Article
212 MYOCARDIAL PERFUSION DURING EXERCISE IN DOGS WITH LEFT VENTRICULAR OBSTRUCTION ABOVE AND BELOW CORONARY ARTERIES
Strenuous exercise is thought to induce global myocardial ischemia in the presence of left ventricular hypertrophy (LVH) and normal coronary arteries. Myocardial perfusion (MBF) and cardiac index (CI) were mea...
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Article
183 “RESPIRATOR PARADOX” IN PREMATURE INFANTS WITH RESPIRATORY DISTRESS SYNDROME
Eleven premature infants (28-32 wks gestation; 900-1400 grams) had echocardiograms performed during the first week of life. Left ventricular (LV) pre-ejection periods (PEP) and ejection times (ET) were measure...
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Book
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Chapter
Chlorophyll-Binding Proteins: Strategies and Developments for DNA Cloning in Rhodopseudomonas Sphaeroides
The three bacterial representatives capable of anoxygenic photosynthesis are members of the family Rhodospirillaceae, Chromatiaceae and Chlorobiaceae (10). Although there are many physiological and anatomical dis...
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Article
Radionuclide angiographic and echocardiographic quantitation of left-to-right shunts in children with ventricular septal defect
Pulmonary to systemic blood flow ratios (Qp:Qs) were estimated in 16 children with ventricular septal defects using simultaneous echocardiography and radionuclide angiography, and compared to Qp:Qs measured at...
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Chapter
The Lactose Carrier of Escherichia Coli Functionally Incorporated in Rhodopseudomonas Sphaeroides Obeys the Regulatory Conditions of the Phototrophic Bacterium
Regulation of solute transport in Rps. sphaeroides is such that the presence of a proton motive force by itself is not enough for solute transport to take place. In addition linear or cyclic electron transfer is ...
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Article
Hemodynamically significant PDA: An echocardiographic and clinical assessment of incidence, natural history, and outcome in very low birth weight infants maintained in negative fluid balance
Fifty very low birth weight (VLBW) infants (750–1500 g, 27–33 weeks gestational age) were assigned at random to one of two groups of negative fluid balance and underwent prospective clinical and echocardiograp...
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Article
THE SPECTRUM OF PULMONARY VASCULAR DISEASE IN INFANTS AND CHILDREN WITH CARDIOMYOPATHY
The presence of pulmonary vascular disease (PVD) in patients undergoing cardiac transplantation may result in death from acute right ventricular failure. This study was undertaken to explore the frequency and ...
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Article
NORMALIZATION OF PLASMA NOREPINEPHRINE FOLLOWING REPAIR OF INTRACARDIAC LEFT TO RIGHT SHUNTS
Plasma norepinephrine (PNE) is elevated in patients with conogestive heart failure (CHF) and the degree of elevation corresponds to the severity of the CHF. This study was performed to determine whether PNE re...
