Abstract:
THE SYNTHESIS OF THE HEPTAPEPTIDE SER-TYR-CLY-LEUARG-PRO-GLY-AMIDE CARRYING EASILY REMOVABLE PROTECTIVE GROUPS ON THE SER, TYR AND ARG MOIETIES IS DESCRIBED; THE CORRESPONDINGLY PROTECTED HEXAPEPTIDE IS USED AS THE STATING MATERIAL. THE HEPTAPEPTIDE, UPON REMOVAL OF ANY PROTECTIVE GROUP ON THE AMINO-N OF THE SERINE MOIETY, IS AN IMPORTANT INTERMEDIATE FOR THE PEPARATION OF THE GONADOTROPIN-RELEASING HORMONE.
Abstract:
COVERS A METHOD OF TREATING PATIENTS REQUIRING ANTITUSSIVE THERAPY BY ADMINISTERING TO SAID PATIENT AN EFFECTIVE DOSE OF A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF 2-PHENYLBUTYRIC ACID, DIETHYLAMINOETHOXYETHANOL, MIXTURES OF 2-PHENYLBUTYRIC ACID, AND DIETHYLAMINOETHOXY-ETHANOL, AND MEDICINALLY ACCEPTABLE ACID OR BASE ADDITION SALTS OF THE FOREGOING, AND A PHARMACEUTICAL CARRIER.
Abstract:
A method of treating bovine mastitis by injecting through the teat orifice of an infected quarter a solution of erythromycin in a fatty acid triglyceride having an iodine value of less than 42. This method, by virtue of the unique solution offers not only effective mastitis control, but also the distinct advantage of a shorter period of detactable drug residue in the milk than heretofore obtainable. Milk taken after the third milking following the last treatment is free from detectable erythromycin residue.
Abstract:
THE SYNTHESIS OF THE HEXAPEPTIDE TYR-GLY-LEU-ARG-PROGLY-AMIDE CARRYING EASILY REMOVABLE PROTECTIVE GROUPS ON THE TYR AND ARG MOIETIES IS DESCIRBED; THE CORRESPONDINGLY PROTECTED PENTAPEPTIDE IS USED AS THE STARTING MATERIAL. THE HEXAPEPTIDE, UPON REMOVAL OF ANY PROTECITVE GROUP ON THE NITROGEN OF THE TYROSINE MOEITY, IS AN IMPORTANT INTERMEDIATE FOR THE PREPARATION OF THE GONADOTROPIN-RELEASING HORMONE.
Abstract:
The disclosure describes apparatus for preventing scalloping the photographic film image produced by a scintillation scanner. The described scanner comprises a detector which can be scanned along parallel paths over an area of interest in a patient. The detector is directly coupled to a light-emitting tube that simultaneously is scanned in a similar manner over a photographic film. Gamma rays emitted by the patient are received by the detector and are converted into corresponding electrical event pulses and bits of event information which are sequentially shifted through shift registers in response to periodic clock pulses. A stepping motor moves the detector and light-producing tube a predetermined distance in response to the receipt of each clock pulse so that the concentration of gamma ray events occuring along any particular segment of the detector scan path can be precisely determined. An individual event pulse is transmitted to the light-producing tube after is has been shifted halfway through the shift register, so that the information stored in the shift register represents gamma ray events occurring before and after the gamma ray event resulting in the event pulse. A counter continuously analyzes the information flowing into and out of the shift register so that an accurate count of the information bits stored in the shift register is continuously available. Additional means are provided for controlling the intensity of the light produced by the tube in response to the value of the information stored in the shift register. As a result, the light intensity produced in response to any single gamma ray event depends on the concentration of gamma ray events occurring on either side of the single event along the detector scan path.
Abstract:
Y-CARBOLINES CARRYING FLUORINE IN THE 6-OR 8-POSITION AND A SPECIFIC P-SUBSTITUTED PHENYLALKYL MOIETY AT THE 2POSITION WERE FOUND TO BE MAJOR TRANQUILIZERS AT LOW DOSES IN WARM-BLOODED ANIMALS.
Abstract:
The disclosure describes an improved system for evaluating rates of reactions and end point determinations that take place within a plurality of individaul secimens. The system includes a cuvette for holding each of the specimens in an individual compartment. Analyzing apparatus is used to generate and sequentially transmit a beam of radiant energy through each of the specimens. The analysis apparatus also produces an analysis signal having a value proportional to a property of a particular specimen each time the beam passes through that specimen. Cycling apparatus causes the beam to sequentially and separately pass through each of the specimens during multiple cycles of operation. During the first cycle of operation, a first set of analysis signals having a first set of values corresponding to the specimens is created. Likewise, during a second cycle of operation, a second set of analysis signals having a second set of values corresponding to the specimens is created. In order to determine the rate at which the reactions take place within each of the specimens, a memory is used to store at least the first set of values. Then, during the second cycle of operation, a processing circuit compares the values of the first and second sets of values which correspond to the same specimen. In this way, the rate of reaction of each specimen is automatically determined. By a similar technique, values can be created and compared in seconds in order to determine rates of reactions that proceed rapidly. In order to analyze end joint determinations, one of the specimens comprises a known concentration of a substance, and other specimens contain unknown concentrations of the substance. The value corresponding to the known concentration is stored in the memory, and other values correspndingly to the unknown concentration are compared with the value stored in the memory. Improved components of the system such as a cuvette, a specimen dispenser, and an analyzing apparatus are also disclosed in the specification. The analyzing apparatus preferably comprises apparatus for instantaneously determining the concentration of a predetermined substance that absorbs radiant energy within a predetermined band of wavelengths in the presence of other interfering substances that also absorb radiant energy in the region of the predetermined band. The determination is made by generating multiple wavelengths of radiant energy. The radiant energy is then sequentially transmitted in a single path through the substances, and the transmission is periodically interrupted by means which prevent the transmission of any radiation. The intensities of the radiant energy transmitted through the substances at the various wavelengths are then compared by electronic apparatus.
Abstract:
AN IMPROVED METHOD OF TREATING DEPRESSION USING THYROTROPIN RELEASING AGENT OR L-PYROGLUTAMYL-L-HISTIDYLL-PROLINAMIDE AS THE ANTI-DEPRESSANT AGENG.
Abstract:
THE 2'',4"-DI-O-ALKANOYL AND THE 2'',4",11-TRI-O-ALKANOYL DERIVATIVES OR ERYTHROMYCIN ARE PREPARED BY ESTERFICATION OF ERYTHROMYCIN WITH AN APPROPRIATE ACID ANHYDRIDE. THESE RESULTING ESTER DERIVATIVES ARE INITIALLY DE-ESTERFIED IN THE 2''-POSITION TO PROPARE THE 4"-O-ALKANOYL OR THE 4",11-DI-O-ALKANOYL ERYTHORMYCIN, AND THEN, IF DESIRED, THESE DE-ESTERFICATION PRODUCTS ARE REACTED WITH ANOTHER ACID ANHYDRIDE TO PREPARE A DISSIMILARLY DI-SUBSTITUTED OR TRI-SUBSTITUTED ESTER. THROUGH REPETITIVE ESTERFICATION AND DE-ESTERFICATION, COMBINATIONS OF THE MONO SUBSTITUTED AND THE SIMILARLY OR DISSIMILARLY MULTIPLE SUBSTITUTED ERYTHROMYCIN ESTERS ARE PREPARED. THESE COMPOUNDS HAVE ANTIBIOTIC ACTIVITY.
WHEREIN X IS HYDROGEN, HYDROXY, MERCAPTO, LOWER ALKYL, LOWER ALKOXY OR HALO AND R IS HYDROGEN, HYDROXY, LOWER ALKYL, LOWER ALKOXY ORHALO. THE COMPOUNDS EXHIBIT ANTIINFLAMMATORY AND ANTI-SECRETORY ACTIVITY.