1
|
Crumrine D, Khnykin D, Krieg P, Man M, Celli A, Mauro T, Menon G, Mauldin E, Miner J, Brash A, Sprecher E, Radner F, Choate K, Roop D, Uchida Y, Gruber R, Schmuth M, Elias P. 655 Origin and functions of the corneocyte lipid envelope. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
2
|
Klein L, Driver B, Moore J, Parrill C, Fagerstrom E, Ho J, Miner J. 62 Comparison of Stress Biomarkers in Emergency Department Patients With Severe Pain or Agitation. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
3
|
Klein L, Driver B, Moore J, Parrill C, Fagerstrom E, Ho J, Miner J. 239 Characteristics of Emergency Department Patients With Agitation and Excited Delirium Syndrome. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
4
|
Klein L, Miner J, Cole J, Mack K, Nystrom P, Biros M, Martel M. 218 Acutely Intoxicated Patients’ Ability to Provide Informed Consent to Research in the Emergency Department. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
5
|
Kim A, Akilesh S, Koziell A, Saunders B, Jain S, Hodgin J, Zinselmeyer B, Stappenback T, Miner J, Shaw A. AB0013 Glomerular IL-4 Signaling Mediates Foot Process Effacement and Proteinuria in Nephrotic Syndromes. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
6
|
Lewis L, Graffeo C, Crosley P, Klausner H, Clark C, Frank A, Miner J, Iarrobino R, Chyung Y. Ecallantide for the Acute Treatment of Angiotensin Converting Enzyme Inhibitor-Induced Angioedema: A Multicenter Randomized Controlled Trial. Ann Emerg Med 2013. [DOI: 10.1016/j.annemergmed.2013.07.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
7
|
Spolenak R, Volkert CA, Takahashi K, Fiorillo S, Miner J, Brown WL. Mechanical Properties of Electroplated Copper Thin Films. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-594-63] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractIt is well known that the mechanical properties of thin films depend critically on film thickness However, the contributions from film thickness and grain size are difficult to separate, because they typically scale with each other. In one study by Venkatraman and Bravman, Al films, which were thinned using anodic oxidation to reduce film thickness without changing grain size, showed a clear increase in yield stress with decreasing film thickness.We have performed a similar study on both electroplated and sputtered Cu films by using chemical-mechanical polishing (CMP) to reduce the film thickness without changing the grain size. Stress-temperature curves were measured for both the electroplated and sputtered Cu films with thicknesses between 0.1 and 1.8 microns using a laser scanning wafer curvature technique. The yield stress at room temperature was found to increase with decreasing film thickness for both sets of samples. The sputtered films, however, showed higher yield stresses in comparison to the electroplated films. Most of these differences can be attributed to the different microstructures of the films, which were determined by focused ion beam (FIB) microscopy and x-ray diffraction.
Collapse
|
8
|
Miner J, Smith M, Martini E, Brunt V, Kaplan P, Halliwill J, Minson C. Progesterone Administration Antagonizes the Effect of Estradiol on Endothelium-Dependent Vasodilation and Cardiovagal Baroreflex Sensitivity in Young Healthy Women. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
9
|
Dimitrov V, Mirsaidov U, Wang D, Sorsch T, Mansfield W, Miner J, Klemens F, Cirelli R, Yemenicioglu S, Timp G. Nanopores in solid-state membranes engineered for single molecule detection. Nanotechnology 2010; 21:065502. [PMID: 20061599 DOI: 10.1088/0957-4484/21/6/065502] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A nanopore is an analytical tool with single molecule sensitivity. For detection, a nanopore relies on the electrical signal that develops when a molecule translocates through it. However, the detection sensitivity can be adversely affected by noise and the frequency response. Here, we report measurements of the frequency and noise performance of nanopores </=8 nm in diameter in membranes compatible with semiconductor processing. We find that both the high frequency and noise performance are compromised by parasitic capacitances. From the frequency response we extract the parameters of lumped element models motivated by the physical structure that elucidates the parasitics, and then we explore four strategies for improving the electrical performance. We reduce the parasitic membrane capacitances using: (1) thick Si(3)N(4) membranes; (2) miniaturized composite membranes consisting of Si(3)N(4) and polyimide; (3) miniaturized membranes formed from metal-oxide-semiconductor (MOS) capacitors; and (4) capacitance compensation through external circuitry, which has been used successfully for patch clamping. While capacitance compensation provides a vast improvement in the high frequency performance, mitigation of the parasitic capacitance through miniaturization offers the most promising route to high fidelity electrical discrimination of single molecules.
Collapse
Affiliation(s)
- V Dimitrov
- 3041 Beckman Institute, Urbana, IL 61801, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
|
11
|
Dawes D, Ho J, Miner J. The neuroendocrine effects of the TASER X26®: A brief report. Forensic Sci Int 2009; 183:14-9. [DOI: 10.1016/j.forsciint.2008.09.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 07/24/2008] [Accepted: 09/23/2008] [Indexed: 11/26/2022]
|
12
|
Miner J, Yu C, Iverson C, Hamatake R, Cheney W, Chapman M, Adjei A, Quart B. 577 POSTER Selective MEK Inhibitor RDEA119 exhibits efficacy in orthotopic hepatoma models and cytostatic potential in multiple cell based models of cancer. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72511-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
13
|
Dimitrov V, Heng J, Timp K, Dimauro O, Chan R, Hafez M, Feng J, Sorsch T, Mansfield W, Miner J, Kornblit A, Klemens F, Bower J, Cirelli R, Ferry EJ, Taylor A, Feng M, Timp G. Small-Signal Performance and Modeling of sub-50nm nMOSFETs with f above 460-GHz. Solid State Electron 2008; 52:899-908. [PMID: 20706596 PMCID: PMC2919744 DOI: 10.1016/j.sse.2008.01.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We have fabricated and tested the performance of sub-50nm gate nMOSFETs to assess their suitability for mixed signal applications in the super high frequency (SHF) band, i.e. 3-30GHz. For a 30nm×40 μm×2 device, we found f(T) =465GHz at V(ds)=2V, V(g)=0.67V, which is the highest cut-off frequency reported for a MOSFET produced on bulk silicon substrate so far. However, our measurements of f(max) and noise figure indicate that parasitics impose limitations on SHF operation. We also present a high-frequency ac model appropriate to sub-50nm gate length nanotransistors, which incorporates the effects of the parasitics. The model accurately accounts for measurements of the S and Y parameters in the frequency range from 1 to 50GHz.
Collapse
Affiliation(s)
- V Dimitrov
- University of Illinois, Urbana, IL 61801
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Dawes D, Ho J, Johnson M, Lundin E, Miner J. 423: Breathing Parameters, Venous Blood Gases, and Serum Chemistries With Exposure to a New Wireless Projectile Conducted Electrical Weapon in Human Volunteers. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
Miner J, Kim C, Kapella K. Variations in Perceived Pain Measurements within and between Subjects Using a Standard Painful Stimulus. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
16
|
Mayerle J, Hubbard D, Miner J. Quantified Changes in End-tidal Carbon Dioxide During Procedural Sedation Are Associated with Specific Clinical Signs of Respiratory Depression. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
17
|
Miner J, Stephens D, Plummer D, Gray R. Randomized Clinical Trial of Procedural Sedation Using Propofol with and without the Ultra-short Acting Opioid Alfentanil. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
18
|
Miner J, Kim C, Kapella K, Rockswold E. Randomized Double-blind Placebo Controlled Cross-over Study of Acetaminophen, Ibuprofen, Acetaminophen/Hydrocodone and Placebo for the Relief of Pain From a Standard Painful Stimulus. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
19
|
Moscati R, Ho J, Dawes D, Miner J, Reardon R, Heegaard W, Johnson TM, Bultman L. Physiologic Effects of Prolonged Conducted Electrical Weapon Discharge on Intoxicated Adults. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.874] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Ho J, Dawes D, Bultman L, Moscati R, Skinner L, Bahr J, Reardon R, Johnson M, Miner J. Physiologic Effects of Prolonged Conducted Electrical Weapon Discharge on Acidotic Adults. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.873] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
21
|
Hill C, Martel M, Miner J. Olanzapine vs. Droperidol for Primary Headache in the Emergency Department. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
22
|
Chan HB, Marcet Z, Woo K, Tanner DB, Carr DW, Bower JE, Cirelli RA, Ferry E, Klemens F, Miner J, Pai CS, Taylor JA. Optical transmission through double-layer metallic subwavelength slit arrays. Opt Lett 2006; 31:516-8. [PMID: 16496905 DOI: 10.1364/ol.31.000516] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We present measurements of transmission of infrared radiation through double-layer metallic grating structures. Each metal layer contains an array of subwavelength slits and supports transmission resonance in the absence of the other layer. The two metal layers are fabricated in close proximity to allow coupling of the evanescent field on individual layers. The transmission of the double layer is found to be surprisingly large at particular wavelengths, even when no direct line of sight exists through the structure as a result of the lateral shifts between the two layers. We perform numerical simulations using rigorous coupled wave analysis to explain the strong dependence of the peak transmission on the lateral shift between the metal layers.
Collapse
Affiliation(s)
- H B Chan
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
We describe a prospective strategy for reading the encyclopedic information encoded in the genome: using a nanopore in a membrane formed from an MOS-capacitor to sense the charge in DNA. In principle, as DNA permeates the capacitor-membrane through the pore, the electrostatic charge distribution characteristic of the molecule should polarize the capacitor and induce a voltage on the electrodes that can be measured. Silicon nanofabrication and molecular dynamic simulations with atomic detail are technological linchpins in the development of this detector. The sub-nanometer precision available through silicon nanotechnology facilitates the fabrication of the detector, and molecular dynamics provides us with a means to design it and analyze the experimental outcomes.
Collapse
Affiliation(s)
- J B Heng
- Beckman Institute, University of Illinois, Urbana, IL
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
|
25
|
Rosen J, Miner J. Improving the Utility of Steroidal Anti-Inflammatories: Identification of Selective Glucocorticoid Receptor Modulators. ACTA ACUST UNITED AC 2002. [DOI: 10.2174/1568013024606486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
26
|
Coghlan MJ, Kym PR, Elmore SW, Wang AX, Luly JR, Wilcox D, Stashko M, Lin CW, Miner J, Tyree C, Nakane M, Jacobson P, Lane BC. Synthesis and characterization of non-steroidal ligands for the glucocorticoid receptor: selective quinoline derivatives with prednisolone-equivalent functional activity. J Med Chem 2001; 44:2879-85. [PMID: 11520196 DOI: 10.1021/jm010228c] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel class of functional ligands for the human glucocorticoid receptor is described. Substituents in the C-10 position of the tetracyclic core are essential for glucocorticoid receptor (GR) selectivity versus other steroid receptors. The C-5 position is derivatized with meta-substituted aromatic groups, resulting in analogues with a high affinity for GR (K(i) = 2.4-9.3 nM) and functional activity comparable to prednisolone in reporter gene assays of glucocorticoid-mediated gene transcription. The biological activity of these novel quinolines was also prednisolone-equivalent in whole cell assays of glucocorticoid function, and compound 13 was similar to prednisolone (po ED(50) = 2.8 mpk for 13 vs ED(50) = 1.2 mpk for prednisolone) in a rodent model of asthma (sephadex-induced eosinophil influx).
Collapse
Affiliation(s)
- M J Coghlan
- Pharmaceutical Products Division, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, Illinois 60064, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Li Z, Bustos V, Miner J, Paulo E, Meng ZH, Zlotnikov G, Ljung BM, Dairkee SH. Propagation of genetically altered tumor cells derived from fine-needle aspirates of primary breast carcinoma. Cancer Res 1998; 58:5271-4. [PMID: 9850046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Because primary breast tumors are diagnosed earlier in the clinic, procurement of sufficient amounts of tumor tissue for in-depth biological characterization is becoming increasingly difficult. We demonstrate here that relatively small numbers of tumor cells within samples of fine-needle aspirates (FNA) can be propagated in culture. Of 25 cases attempted, 12 were passageable, resulting in up to 10(7) viable cells. FNA-derived cultures were evaluated for anchorage-independence, c-erb-B2 overexpression, aneusomy, and pattern of allelic loss. In every case examined, the cultured cells closely resembled the original tumor tissue and displayed one or more tumor phenotypes. The incidence of erb-B2 overexpressing tumors was similar in passageable and nonpassageable cases (33% versus 31%, respectively). FNAs that are expanded from a wide range of clinical breast material could be useful for functional studies presently limited to rare established cell lines, such as aberrant signal transduction and gene regulation, and for testing potential anticancer vaccines and drugs.
Collapse
Affiliation(s)
- Z Li
- Geraldine Brush Cancer Research Institute, California Pacific Medical Center, San Francisco 94115, USA
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Heil R, Lane S, Maahs D, Miner J, Myers C, Roth J. Using a performance improvement team to reinvent a mandatory education program. Jt Comm J Qual Improv 1997; 23:103-16. [PMID: 9061440 DOI: 10.1016/s1070-3241(16)30303-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND To improve employee attendance at Annual Review Day, the day when all mandatory hospitalwide education requirements are presented. The Finley Hospital (Dubuque, Iowa) initiated a performance improvement team in March 1993. Data collected previous to 1993 indicated that the compliance goal of 90% was being met only with difficulty. PERFORMANCE IMPROVEMENT TEAM Data indicated three main areas where improvements could be made-communication, enforcement, and curriculum. Recommendations of task forces, with team members as leaders, were implemented. Decisions were made to change Annual Review Day to a full-day format to include all mandatory education, make outcomes competency based, and maintain cost-effectiveness. TRIAL RUN AND EVALUATION The one-year trial run began in 1994 with gradual changes in the program from a lecture and video format to an interactive game format. For example, at one point a crossword puzzle with information on infection control and bloodborne pathogens was added. The Jeopardy Game format, used to teach the principles of emergency preparedness, was added in June 1994. Full implementation of the curriculum, communication, and enforcement recommendations have resulted in 100% compliance. MAINTAINING THE GAIN The performance improvement team has continued to monitor results and submit quarterly reports to the quality management department. All participants must complete and pass a competency-based test on the information covered; all 760 participants have passed. The curriculum task force continues to meet on a yearly basis to evaluate the ever-evolving format, analyze attendee evaluations, and consider annual changes to the format.
Collapse
Affiliation(s)
- R Heil
- Finley Hospital, Dubuque, IA 52001, USA
| | | | | | | | | | | |
Collapse
|
29
|
Affiliation(s)
- K Hashimoto
- Department of Dermatology & Syphilology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | | |
Collapse
|
30
|
Worchel FF, Prevatt BC, Miner J, Allen M, Wagner L, Nation P. Pediatrician's communication style: relationship to parent's perceptions and behaviors. J Pediatr Psychol 1995; 20:633-44. [PMID: 7500235 DOI: 10.1093/jpepsy/20.5.633] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Investigated physician-parent communication styles and the effects of concordance between parent's desired communication styles and the communication style exhibited by physicians. Subjects were 107 parents of children scheduled for an appointment with a pediatrician at a general medical clinic. Parents and physicians completed rating forms indicating the degree to which parents desired each of four communication styles (information giving, interpersonal sensitivity, partnership, and directing one's own treatment). Parents and physicians also rated the degree to which they believed the physician exhibited each of these four styles. Follow-up interviews with parents assessed the level of satisfaction with the visit, perception that parent's concerns had been addressed, and subsequent telephone calls to the physician. Results indicated that physicians underestimated the degree of interaction desired by the parents. Parent desires for particular communication styles were not predicted by characteristics of the parents. Interaction variables predicted parent perceptions and subsequent need for contact with the physician.
Collapse
Affiliation(s)
- F F Worchel
- Department of Educational Psychology, Texas A&M University, College Station 77843, USA
| | | | | | | | | | | |
Collapse
|
31
|
Miner J. Incorporating the Betty Neuman Systems Model into HIV clinical practice. ACTA ACUST UNITED AC 1995; 9:37-9. [PMID: 11361355 DOI: 10.1089/apc.1995.9.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- J Miner
- Department of Ambulatory Care, Queens Hospital Center, Jamaica, NY, USA
| |
Collapse
|
32
|
Abstract
The purpose of this research was to compare infant feeding practices in two rural cities, one located in the midwest of the USA and the other northeast of Moscow in Russia. During the month of October 1991, questionnaires were distributed to new mothers in Stevens Point, Wisconsin and in Rostov-Veliky, Russia. All new mothers were breastfeeding their infants in Russia at the time of hospital discharge. In the Wisconsin city, 60 percent of new mothers were breastfeeding. Russian mothers received more societal support for breastfeeding, with longer maternity leave and childcare facilities provided in the workplace.
Collapse
|
33
|
Arvidson DN, Arvidson CG, Lawson CL, Miner J, Adams C, Youderian P. The tryptophan repressor sequence is highly conserved among the Enterobacteriaceae. Nucleic Acids Res 1994; 22:1821-9. [PMID: 8208606 PMCID: PMC308080 DOI: 10.1093/nar/22.10.1821] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Tryptophan biosynthesis in Escherichia coli is regulated by the product of the trpR gene, the tryptophan (Trp) repressor. Trp aporepressor binds the corepressor, L-tryptophan, to form a holorepressor complex, which binds trp operator DNA tightly, and inhibits transcription of the tryptophan biosynthetic operon. The conservation of trp operator sequences among enteric Gram-negative bacteria suggests that trpR genes from other bacterial species can be cloned by complementation in E. coli. To clone trpR homologues, a deletion of the E. coli trpR gene, delta trpR504, was made on a plasmid by site-directed mutagenesis, then crossed onto the E. coli genome. Plasmid clones of the trpR genes of Enterobacter aerogenes and Enterobacter cloacae were isolated by complementation of the delta trpR504 allele, scored as the ability to repress beta-galactosidase synthesis from a prophage-borne trpE-lacZ gene fusion. The predicted amino acid sequences of four enteric TrpR proteins show differences, clustered on the backside of the folded repressor, opposite the DNA-binding helix-turn-helix substructures. These differences are predicted to have little effect on the interactions of the aporepressor with tryptophan, holorepressor with operator DNA, or tandemly bound holorepressor dimers with one another. Although there is some variation observed at the dimer interface, interactions predicted to stabilize the interface are conserved. The phylogenetic relationships revealed by the TrpR amino acid sequence alignment agree with the results of others.
Collapse
Affiliation(s)
- D N Arvidson
- California Institute of Biological Research, La Jolla 92037
| | | | | | | | | | | |
Collapse
|
34
|
Della-Fera MA, Coleman BD, Doubek CA, Marshall HN, Miner J, Paterson J, Gingerich RL, Baile CA. Cholecystokinin concentration in specific brain areas of rats fed during the light or dark phase of the circadian cycle. Physiol Behav 1989; 45:801-7. [PMID: 2780851 DOI: 10.1016/0031-9384(89)90298-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Measurement of peptide concentration in specific areas can be used as an initial investigative method for identifying brain sites in which the peptides may be acting. In this study cholecystokinin (CCK) concentration in specific hypothalamic and hindbrain areas of male Sprague-Dawley rats was measured in order to determine whether changes occurred as a result of feeding activity during different portions of the circadian cycle. Three groups of 40 rats each were studied: Group 1 were fasted 16 hr during the dark phase then sacrificed immediately or after a 20 min light phase meal. Group 2 were fasted 16 hr during the light phase then sacrificed immediately after lights out or after a 20 min dark-onset meal. Group 3 were fed ad lib and sacrificed immediately after light out or after a 20 min dark-onset meal. CCK was extracted from dissected areas and concentration was measured by RIA. There was no difference in CCK concentration of any of the 9 brain areas in rats fasted during the dark phase and fed during the light phase. In rats fasted during the light phase CCK concentration of the paraventricular nucleus (PVN) was greater in those that subsequently ate a meal at dark-onset than in those that did not eat (p less than 0.05). In ad lib fed rats CCK concentration was less in the anterior hypothalamus (AH) and greater in the supraoptic nucleus (SON) in rats that ate a dark-onset meal than in rats that did not (p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- M A Della-Fera
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | | | | | | | | | | | | | | |
Collapse
|
35
|
|
36
|
|
37
|
|