Abstract:
A method is disclosed for inhibiting nitric oxide formation in a warm blooded mammal afflicted with an acute or chronic inflammatory disease which comprises administering to said mammal an effective nitric oxide inhibitory amount of methyl-, or 1,1-dimethyl-, or amino-substituted guanidines.
Abstract:
A method and apparatus for reacting sodium vapor with gaseous chlorides in a flame to produce nanoscale particles of un-oxidized metals, composites and ceramics. The flame is operated under conditions which lead to condensation of a NaCl by-product onto the particles. The condensate encapsulates the particles and aids in controlling desired particle size and preventing undesirable agglomeration among the particles during synthesis. Following synthesis, oxidation of the particles is inhibited by the encapsulation, and handling character of the products is greatly enhanced. Electron microscopy has revealed that synthesized products are composed of discrete nanoparticles in a NaCl matrix. The NaCl encapsulate has been effectively removed from the particles by both washing and known sublimation technique at 800 DEG C under low pressure.
Abstract:
Novel compositions and methods for inhibiting cytokine-induced intracellular activation of STAT family transcription factors by binding to the transcription factors and inhibiting the transcriptional activity of the factors are disclosed. The method comprises introducing into a cell an effective amount of a peptide or derivative thereof, in which the peptide contains a sequence that is derived from a receptor for the cytokine, but with a tyrosine residue being phosphorylated. The compositions comprise isolated peptides or derivatives thereof in which the peptide contains an amino acid sequence derived from a receptor for a cytokine but with a tyrosine residue phosphorylated. A method for identifying derivatives of the isolated peptides comprising detecting the inhibition of the binding of said peptide from a STAT family transcription factor by said derivative is also provided.
Abstract:
A method is disclosed for inhibiting nitric oxide formation in a warm blooded mammal afflicted with an acute or chronic inflammatory disease which comprises administering to said mammal an effective nitric oxide inhibitory amount of methyl-, or 1,1-dimethyl-, or amino-substituted guanidines.
Abstract:
Multicasting is implemented in a virtual circuit switch (23) for an ATM network by recycling data cells through the switch fabric (23) a multiple number of times with a copy-by-two network (IPP) creating an additional data cell upon each recycle to thereby satisfy the number of connection addresses in the multicast connection. Resequencing of the data cells may be implemented at the exit to the switch fabric (23) as well as upon each recycle of data cells through the switch fabric (23).
Abstract:
Vaccines and immunogenic compositions which contain at least one immunogenic antigenic determinant, the antigenic determinant being fused to a Hepatitis B virus core antigen and heterologous thereto and methods for making same are provided.
Abstract:
The integrity (density) of discrete pieces of hard tissue (bones) in a patient may be determined by either one of two methods. In a first method, an impulse of energy is introduced into the bone, such as by striking the patient's bone, and the induced vibration is sensed and analyzed in order to compute the damping factor thereof, the damping factor being directly related to the density thereof. With this method, a transducer (26) is coupled to the bone (24) and its output is amplified by an amplifier (28) before input to a computer (30) which determines the damping factor. In a second method, a continuous energy input is provided to the bone, such as by utilizing a frequency generator (36) coupled to a power amplifier (38) whose output drives a transducer (40) such as a speaker for inducing a continuous vibration in the bone. This continuous vibration is measured with a transducer (26), an amplifier (28), and a damping factor calculated with a computer (30) as in the first method.
Abstract:
Improved methods for recombinant production of human reproductive hormones are disclosed. These methods involve the use of animal-derived cells that contain regulated secretory granules as host cells for expression systems capable of expressing DNA encoding human reproductive hormones or their beta subunits.
Abstract:
The invention provides peptide and protein pharmaceuticals with extended half-lives. The modified peptides and proteins of the invention contain at least two tandem extensions at their C-terminus comprising the carboxy terminal portion of human chorionic gonadotropin. These "CTP units" consist essentially of the native HCG- beta sequence from position 112-118 to position 145 or conservative modifications thereof.
Abstract:
A packet switch having broadcasting capability for an ATM network includes a copy network stage having an increased number of copy outputs over the number of switch inputs and outputs to improve data throughput under worst case conditions, broadcast translation circuits with inputs connected to a multiple number of copy network outputs for multiplexing the data packets therethrough, partitioned memories for the broadcast translation circuits to reduce their memory requirements, and techniques for aligning broadcast copies of data packets for minimizing the number of copies each BTC must translate and thereby reduce each of their memories. All of these enhancements to a prior art broadcast ATM switch substantially reduce its memory requirements to thereby enable broadcasting in an ATM switch to be practically realized.