The Phlebomanometer: A New Apparatus for Direct Measurement of Vanous Pressure in Large and Small Veins

Burch, George E.

doi:10.1001/jama.1943.82840370004006b

Cited by 26 publications

(1 citation statement)

References 1 publication

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“…According to the data observed in Figure 2, this microemulsified system showed two Winsor regions and a WII region, where the water phase is in excess, forming a twophase system and a WIV region characterized by a single phase (the microemulsion), thus confirming that this system is Oil/Water O/W [28].…”

Section: Phase Diagram and Microemulsionssupporting

confidence: 66%

The Microemulsion with Solubilization of the Ethanolic Extract of the Leaves of Melão-de-São-Caetano (Momordica charantia) and Antibacterial Action

Brito

Camboim

Rossi³

et al. 2023

JFB

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Extracts obtained from plants have significantly contributed to the creation of new drugs due to their medicinal properties, which are provided by the presence of bioactive components. This has led to a growing interest from the pharmaceutical industry in using this type of extract for the creation of increasingly advanced medications. The main components sought are antibacterial agents from sustainable and renewable sources, whether of animal or vegetable origin or derived from other natural components. Tissues become a source of microbial proliferation, especially when in contact with the human body, which can cause serious diseases. In line with this, the goal of this research was to create an antibacterial Melon-de-São-Caetano (Momordica charantia) leaf microemulsion for application on material surfaces. This microemulsified system is an effective alternative for solubilizing functional agents, and being thermodynamically stable, it is efficient for long-term use. For this study, an extract of Momordica charantia leaves (EMC) was obtained, and microemulsions with different EMC concentrations (P1, P2, and P3) were produced. The extract and microemulsions were investigated using Fourier Transform Infrared (FTIR) spectroscopy, particle size, zeta potential, thermal stress, pH, electrical conductivity, Transmission Electron Microscopy (TEM), and antibacterial analysis (Staphylococcus aureus). In summary, the proposed objective was met, and EMC, SME, and the P2 and P3 microemulsions showed positive results against S. aureus, with the P3 microemulsified system being the most effective with a 12.5 mm inhibition halo. Therefore, the product developed in this research has the potential for application on surfaces, providing antibacterial action.

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Section: Phase Diagram and Microemulsionssupporting

confidence: 66%

The Microemulsion with Solubilization of the Ethanolic Extract of the Leaves of Melão-de-São-Caetano (Momordica charantia) and Antibacterial Action

Brito

Camboim

Rossi³

et al. 2023

JFB

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Vascular Diseases

Dellen¹,

Scupham²,

Takáts³

et al. 1945

Arch Intern Med (Chic)

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A Method for Measuring Venous Tone in Digital Veins of Intact Man

Burch¹

1954

AMA Arch Intern Med

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It HAS been suggested that the tone of the veins is increased in chronic congestive heart failure,* but, because the evidence has been indirect and unconvincing, the concept has not been fully accepted.\s=d\ Some of the data reported \ s=dd\ may be interpreted to support an increase in venous tone. Because the neck veins are distended in patients suffering with congestive heart failure, the blood volume is considered by many to be increased and venous tone to be decreased. That this is not necessarily true has been indicated by previous studies,\s=s\ as well as by the observation that blood volume may be only slightly to moderately increased, if at all, in congestive heart failure.\m=par\ Thus, it is desirable to study venous tone in congestive heart failure further.A venous occlusive pneumoplethysmographic method has recently been developed in this laboratory that permits simultaneous measurements of the continuous curves of the time courses of the volume, rate, and acceleration in rate of inflow, outflow, and difference between inflow and outflow for the intact finger tip of man.jj This method lends itself to a study of aspects of the behavior of the veins in the intact digit of normal man as well as subjects with chronic congestive heart failure. Data presented in this report are compatible with an increase in tone in the venous, as well as arterial, side of the digital vascular bed in subjects with severe chronic right and left ventricular congestive heart failure.Venous tone is defined as the tendency of the vein to resist distention. This resist¬ ance is due in part to a state of contraction or tension offered by the smooth muscle in the wall of the vein. Whenever there is a tendency for the vein to be distended,

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The Phlebomanometer: A New Apparatus for Direct Measurement of Vanous Pressure in Large and Small Veins

Cited by 26 publications

References 1 publication

The Microemulsion with Solubilization of the Ethanolic Extract of the Leaves of Melão-de-São-Caetano (Momordica charantia) and Antibacterial Action

The Microemulsion with Solubilization of the Ethanolic Extract of the Leaves of Melão-de-São-Caetano (Momordica charantia) and Antibacterial Action

Vascular Diseases

A Method for Measuring Venous Tone in Digital Veins of Intact Man

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