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G Sweeney

Publications and source records attributed to G Sweeney.

63 records · Page 4Linked to original sources
PubMed1981

Alcoholism outreach in single room occupancies.

Alcoholism flourishes in the community occupying single room occupancy (SRO) dwellings on Manhattan's west side. Individuals in this setting have few social resources and by reason of background and deprivation are inhibited from seeking help for their alcoholism. Consequently a direct in-person outreach approach is required in order to effect treatment. The milieu is rife with physical and psychological threats to occupants. These present unique challenges to the community alcoholism counselor who, as a member of an interdisciplinary community mental health treatment team, seeks to intervene. Counselor is viewed by client as an intruder in the environment. Breaking the isolation in which the client is immersed and developing a bond with him becomes the most immediate and most difficult of the several tasks facing the counselor.

Adult↗
PubMed1980

'MacDope': a simulation of drug disposition in the human body: applications in clinical pharmacokinetics.

1 We have described a novel approach to absorption, distribution, metabolism and elimination of drugs in which the patient is described using 23 Patient Factors and drugs by up to 50 Drug Factors. Kinetic behavior of a drug results from the interaction of patient and drug factors according to equations describing an eight compartment model. In this model non-linear processes (protein binding, hepatic drug metabolism and renal tubular transport) are handled by derivations of the law of mass action which have been generalised to permit the consequences of multiple drugs interacting at single macromolecular sites to be correctly calculated. 2 The mathematical description of this model is provided in a companion paper and solution of the equations is only possible using a digital computer. The computer programme is provided with an interactional format which makes operation independent of mathematical skills. Patients are defined by age, sex, height and weight with, or without, organ dysfunction; the programme then generates appropriate factors. Drug enters the system when a prescription is type on the keyboard and required Drug Factors are then retrieved from the disc flies. Drug concentrations in plasma or body fluids are given as simple graphs as a function of time, or in tabular form. 3 Any of the Patient or Drug Factors may be altered before, or during a run and up to three drugs may be simulated at one time thus permitting certain kinetic interactions to be examined. The scope of the simulator is illustrated using aspirin: pH dependent gastric absorption, first-order conversion of aspirin to salicylate, partly first order and partly saturable hepatic metabolism of salicylate, and the complex renal handling of this drug are all represented. Interaction of phenytoin with salicylate has been examined quantitatively to suggest limited clinical relevance for the observed displacement of phenytoin from serum albumin. The use of the simulator in a short course of pharmacokinetics is briefly described.

Aspirin↗
PubMed1980

Parinaud oculoglandular syndrome and cat-scratch fever.

The clinician should examine for conjunctival inflammation when preauricular adenopathy exists. Parinaud oculoglandular syndrome is probably caused by many different antigens, including CSD. Biopsy of the affected node is seldom indicated but may be necessary to help rule out neoplastic disease.

Adolescent↗
PubMed1979

Location of binding sites on common type 1 fimbriae from Escherichia coli.

Common type 1 fimbriae were isolated from Escherichia coli and their length distribution profile was determined before and after treatment with ultrasound. As fimbriae were shortened, so their haemagglutinating capacity decreased, but their ability to bind to erythrocytes did not decrease to the same extent. Isolated fimbriae did not agglutinate inside-out vesicles prepared from horse erythrocytes or liposomes, suggesting that the binding mechanism was not based on non-specific hydrophobic interactions. The results support a lateral rather than a terminal location for the fimbrial binding site responsible for haemagglutination.

Binding Sites↗
PubMedDate not supplied

Stimulation of glucose and amino acid transport and activation of the insulin signaling pathways by insulin lispro in L6 skeletal muscle cells.

The monomeric insulin analogue insulin lispro (Lys B28, Pro B29) is a rapid-acting insulin with a shorter duration of activity than human regular insulin. This compound has the advantage of reducing early postprandial hyperglycemia and the accompanying late hypoglycemia, thereby improving overall blood glucose control. To date, all published studies of the functional properties of insulin lispro have been conducted in whole animals. This study aimed to characterize the cellular actions of insulin lispro and the signals it elicits in an insulin-sensitive muscle cell line, L6 cells. Comparing the cellular actions of insulin lispro with those of human regular insulin, a number of observations were made. (1) Insulin lispro stimulated glucose and amino acid transport into L6 myotubes with a dose dependency and time course virtually identical to those of human regular insulin. (2) Insulin lispro was as effective as human regular insulin in stimulating time-dependent phosphorylation of insulin receptor substrate 1 (IRS-1), p70 ribosomal S6 kinase, and two isoforms of mitogen-activated protein kinase (ERK1 and ERK2). (3) Insulin lispro's ability to induce the association of IRS-1 with the p85 subunit of phosphatidylinositol 3-kinase was similar to that of human regular insulin. (4) As with human regular insulin, 100 nmol of the fungal metabolite wortmannin completely inhibited insulin lispro stimulation of glucose uptake. We concluded that the cellular actions of insulin lispro are similar to those of human regular insulin with respect to glucose and amino acid uptake and that the biochemical signals elicited are also comparable.

Amino Acids↗
PubMedDate not supplied

Infectious mononucleosis preceding acute myelomonocytic leukemia.

The patient discussed in this report had acute myelomonocytic leukemia (AMML) associated with infectious mononucleosis. Infectious mononucleosis (IM) in association with acute leukemia (AL) has provided clinical investigators an active area of speculation for several years. Nineteen cases are presented for review in Table 1. The present case represents the second case of AMML to be associated with IM. It is the first case of a granulocytic leukemia reported in which active IM is occurring simultaneously with the onset of AL. Also, it represents the first case of associated IM-AL in which the diagnosis of IM is supported by lymphocyte culture data. This may represent a mechanism for additional investigation in future cases.

Acute Disease↗