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Bender JS, Magnuson TH, Zenilman ME, Smith-Meek MM, Ratner LE, Jones CE, Smith GW. Outcome following colon surgery in the octagenarian. Am Surg 1996; 62:276-9. [PMID: 8600847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The results of colon surgery in all individuals aged 80 years or greater at one teaching institution during the 1987-1993 time period were reviewed. Sixty patients, ranging in age from 80 to 92 years, underwent 41 elective operations and 21 emergency procedures. Emergency procedures resulted in death or a major complication in over one-half of patients, and only six were ultimately able to return home. Conversely, elective procedures were relatively well tolerated, and 31 of 37 survivors returned immediately to independent living (P = 0.006). Mortality was 33.3 per cent in emergency cases versus 9.8 per cent in elective operations (P < 0.03). The occurrence of a postoperative complication increased the length of stay by an average of 12 days. These data suggest that elective colon surgery in the elderly produces results little different from the population at large. Conversely, emergency operations are associated with a high morbidity and mortality rate. Age alone should not be a determining factor in who undergoes an elective colon operation. Greater efforts should be made to screen elderly individuals to limit emergency surgery.
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Muram D, Jones CE, Hostetler BR, Crisler CL. Teaching pediatric and adolescent gynecology: a pilot study at one institution. J Pediatr Adolesc Gynecol 1996; 9:12-5. [PMID: 9551370 DOI: 10.1016/s1083-3188(96)70004-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE To assess resident physicians' clinical recognition skills in Pediatric and Adolescent Gynecology. MATERIALS 1) A questionnaire to identify demographic data and self-assessment as to the ability to perform a gynecologic evaluation of children. 2) Twenty color photographs of normal genitalia and common gynecologic problems in children. PARTICIPANTS Sixty-one University of Tennessee resident physicians; 51 from the Memphis campus--20 obstetrics-gynecology (Ob-Gyn) residents, 20 pediatrics residents, and 11 family practice residents--and 10 Ob-Gyn residents from the Chattanooga campus. MAIN OUTCOME MEASURES Ability to identify normal features of the prepubertal genitalia and to diagnose common gynecologic disorders. RESULTS Ob-Gyn residents from the University of Tennessee, Memphis scored significantly better (58.1% correct) than did the other three groups; 38.8, 36.9, and 39.1%, respectively (p = .009). Mean performance score increased with higher pediatric gynecology PGY levels. PGY-4s performed best, whereas PGY-1s scored the lowest, with mean scores of 57.5% and 35.3%, respectively (p = .021). Residents who reported having a well-defined program in pediatric gynecology scored significantly better than those who did not have such a program, 55.3% and 39.5%, respectively (p < .001). CONCLUSIONS A well-defined program in pediatric gynecology enhances resident education and provides them with better tools to perform gynecologic evaluations of children and adolescents.
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Earl JM, Jones CE. The Need for a New Approach to Grazing Management - Is Cell Grazing the Answer? RANGELAND JOURNAL 1996. [DOI: 10.1071/rj9960327] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
With any grazing method, the grazing pressure applied to an individual plant is a site, stock density and time dependent variable and the diet selection hierarchy of grazing animals is to the disadvantage of the most palatable and actively growing pasture components. The greater the differences in palatability and abundance among the components of a sward, and the lower the stock density, the greater the variation in the grazing pressure exerted. These effects are heightened when animals are set-stocked under adverse environmental conditions. This paper reports the comparative effects of cell grazing and continuous grazing on pasture composition on three properties on the Northern Tablelands of New South Wales. The basal diameters, relative frequency and contribution to dry weight of the most desirablelpalatable species at each site were found to remain constant or to increase under cell grazing, while declining significantly under continuous stocking. The converse was true for the least palatable components of the pasture, which declined significantly under cell grazing but changed little under continuous grazing. Percentage ground cover was significantly higher after two years of cell grazing than under continuous grazing. These changes in pasture composition may have long-term benefits with respect to erosion control, nutrient cycling, hydrological function and the stability of animal production at the cell grazed sites.
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Eady EA, Bojar RA, Jones CE, Cove JH, Holland KT, Cunliffe WJ. The effects of acne treatment with a combination of benzoyl peroxide and erythromycin on skin carriage of erythromycin-resistant propionibacteria. Br J Dermatol 1996; 134:107-13. [PMID: 8745894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Concomitant application of 5% w/w benzoyl peroxide and 3% w/w erythromycin has previously been shown to prevent the overgrowth, on the skin of acne patients, of erythromycin-resistant coagulase-negative staphylococci, which occurs when the antibiotic is used alone. Two in vivo studies were carried out to assess the ability of the same therapeutic combination to inhibit the growth of pre-existing erythromycin-resistant propionibacteria and to prevent the selection of resistant strains during treatment. A double-blind clinical trial in 37 patients with mild to moderate acne vulgaris showed that the combination brought about a > 3 log10 c.f.u. reduction in total propionibacterial numbers/cm2 after 6 weeks therapy (P < 0.001, Wilcoxon's matched pairs) and also significantly reduced the number of erythromycin-resistant propionibacteria (P < 0.05). In contrast, erythromycin alone reduced the total propionibacterial count by < 1.5 log10 c.f.u./cm2 after 6 weeks (P < 0.05) and did not affect the number of erythromycin-resistant strains. The combined formulation was significantly more effective at reducing total propionibacterial numbers at 6 (P < 0.01, Mann-Whitney) and 12 weeks (P < 0.05) than erythromycin alone, although, after 12 weeks, the anti-propionibacterial efficacy of both preparations was less marked. Five patients on combination therapy, and five treated with erythromycin alone, acquired erythromycin-resistant strains de novo at week 6 or week 12. In an open study in 21 acne patients, who each carried > 10(3) c.f.u. erythromycin-resistant propionibacteria/cm2 skin pretreatment, the combination of erythromycin and benzoyl peroxide reduced the total propionibacterial count by > 2.5 log10 and the number of erythromycin-resistant strains by a similar amount (P < 0.001, Wilcoxon). This was accompanied by highly significant reductions in acne grade and lesion counts (P < 0.001). These data suggest that the combination of 5% w/w benzoyl peroxide and 3% w/w erythromycin has greater in vivo anti-propionibacterial activity than 3% w/w erythromycin alone, and brings about significant clinical improvement in acne patients with high numbers of erythromycin-resistant propionibacterial strains pretreatment.
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Abstract
PURPOSE The purpose of this study was to evaluate a group of female adolescent victims (n = 176) of sexual assault and assess the similarities and differences between them and older female victims. METHODS All the adolescents in this study were physically mature. The demographic data and the findings of the medical evaluation are compared with those of women, 25-44 years of age, who were assaulted during the same time period (n = 197). RESULTS The mean age of the adolescent patients was 15.2 (+/- 1.6), while the control group had a mean age of 31.9 (+/- 5.1). Racial distribution was similar in both groups. One hundred thirty-nine (79%) adolescents reported prior consensual sexual activity and 32 (18%) had been pregnant at least once. Thirty-one adolescents (19%) reported a previous sexual assault. Many adolescent victims (64%) knew their assailant. Weapons or physical force was used less frequently to subdue an adolescent victim, and firearms were used very infrequently in adolescent assault. Use of alcohol or drugs just prior to the assault was prevalent among adolescent victims (47%). Finally, adolescent victims were less likely to sustain physical injuries during the assault. CONCLUSION The preexisting relationship between the victim and the assailant may explain other elements that distinguish an adolescent rape victim from her adult counterpart. Compared to adolescent victims, the assault on adult women is more often perpetrated by a stranger, the victim is more likely to be abducted, and weapons, especially firearms, are more likely to be used to carry out the victim's capture.
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He R, Reid DM, Jones CE, Shulman NR. Extracellular epitopes of platelet glycoprotein Ib alpha reactive with serum antibodies from patients with chronic idiopathic thrombocytopenic purpura. Blood 1995; 86:3789-96. [PMID: 7579346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Glycoproteins (GPs) IIb/IIIa and Ib/IX are principal targets of autoantibodies (autoAbs) in idiopathic thrombocytopenic purpura (ITP). Platelet-associated Abs against GPIIb/IIIa primarily recognize discontinuous or nonlinear epitopes (Fujisawa et al, Blood 81:1284, 1993). This study focused on whether Abs against the extracellular domain of GPIb/IX might react with short linear amino acid (aa) sequences of GPIb alpha. Complementary DNAs (cDNAs) coding for two overlapping fragments of GPIb alpha were amplified, cloned into pFLAG.2 plasmids, and expressed in Escherichia coli DH5 alpha competent cells as FLAG fusion proteins, which were purified by anti-FLAG immunoaffinity chromatography. Of 16 selected ITP sera containing anti-GPIb/IX, 6 reacted in microtiter radioimmunoassays (RIAs) with recombinant protein fragment 2 (aas 240 to 485); 1 also with fragment 1 (aas 1 to 247). When synthetic peptides corresponding to 4 segments of fragment 2 with high antigenic indices (P1 to P4) were used as targets in RIAs, all 6 sera reacted with P2 (aas 326 to 346); 1 also reacted with P4 (aas 389 to 412). P2 was shown to be present on the surface of intact platelets by adsorption studies, and anti-P2 was detected in direct eluates of platelets from ITP patients. Glycocalicin in solution effectively competed with immobilized P2 for anti-P2; P2 in solution was a less effective competitor. Epitope scanning with a panel of synthetic 15-mer peptides localized the P2 epitope to the sequence, TKEQTTFPP. Epitope definition may offer insight into the pathophysiology of and more specific treatments for ITP.
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Barron BA, Jones CE, Caffrey JL. Pericardial repair depresses canine cardiac catecholamines and met-enkephalin. REGULATORY PEPTIDES 1995; 59:313-20. [PMID: 8577936 DOI: 10.1016/0167-0115(95)00086-q] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Decreased cardiac catecholamines were observed following incision and repair of the pericardium in sham-operated vs. unoperated control dogs. Animals were assigned to five groups: unoperated, sham-operated intact pericardia, open pericardia, sutured pericardia and complete ventricular sympathectomy. Hearts were collected four weeks after surgery. Sympathectomy decreased catecholamine content when compared to all other groups. Hearts with open/sutured pericardia contained significantly less catecholamines than controls. When the pericardium was intact or left open following incision, cardiac catecholamines were unchanged compared to unoperated controls. Since opioid peptides are colocalized with catecholamines, we measured met-enkephalin and met-enkephalin-arg-phe, proenkephalin A peptide products, in parallel samples. Similar to norepinephrine, met-enkephalin was decreased following both sympathectomy and pericardial repair. However, met-enkephalin-arg-phe, which may be more associated with the myocardium than its innervation, was not changed by any treatment. The sutured pericardium more than the stress of surgery apparently alters the tissue catecholamines and enkephalin. This may have resulted from the mechanical friction at the site of repair. Epinephrine and met-enkephalin contents in sympathectomized hearts were significantly lower than unoperated controls but were not significantly different from the intermediate values observed in the sutured group. The functional consequences of these changes on neuroendocrine status are unclear and will require further evaluation. The results also emphasize the need for careful attention to proper controls for surgical studies.
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Ent R, Anthony PL, Arnold RG, Arrington J, Beise EJ, Belz JE, Bosted PE, Bulten H, Chapman MS, Coulter KP, Dietrich FS, Epstein M, Filippone BW, Gao H, Gearhart RA, Geesaman DF, Hansen J, Holt RJ, Jackson HE, Jones CE, Keppel CE, Kinney ER, Kuhn S, Lee K, Lorenzon W, Lung A, Makins NC, Margaziotis DJ, McKeown RD, Milner RG, Mueller B, Napolitano J, Nelson J, O'Neill TG, Papavassiliou V, Petratos GG, Potterveld DH, Rock SE, Spengos M, Szalata ZM, Tao LH, Wasson DA, White JL, Zeidman B. Evidence for virtual Compton scattering from the proton. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1995; 52:4868-4871. [PMID: 10019711 DOI: 10.1103/physrevd.52.4868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Jones CE, Fleming TM, Cowan DA, Littlechild JA, Piper PW. The phosphoglycerate kinase and glyceraldehyde-3-phosphate dehydrogenase genes from the thermophilic archaeon Sulfolobus solfataricus overlap by 8-bp. Isolation, sequencing of the genes and expression in Escherichia coli. EUROPEAN JOURNAL OF BIOCHEMISTRY 1995; 233:800-8. [PMID: 8521845 DOI: 10.1111/j.1432-1033.1995.800_3.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The overlapping genes encoding phosphoglycerate kinase (PGK) and glyceraldehyde-3-phosphate dehydrogenase (GraP-DH) from the hyperthermophilic archaeon Sulfolobus solfataricus have been cloned and sequenced. PCR primers based on highly conserved regions of different PGK sequences were used to isolate an internal region of the pgk gene. This was then used to screen a genomic library to isolate the full length pgk gene. A 2.5-kb BglII fragment of S. solfataricus DNA contained both the pgk gene and the gap gene immediately downstream. Unexpectedly, the pgk and gap genes were found to overlap by 8 bp, with the initiation codon of the gap gene preceding the termination codon of the pgk gene. Evidence that the two genes are co-transcribed was obtained by Northern-blot analysis. The S. solfataricus PGK amino acid sequence shows 43% and 45% identity to the PGK sequences of the Archaea Methanobacterium bryantii and Methanothermus fervidus, respectively. High level expression of the S. solfataricus PGK and GraP-DH in Escherichia coli was achieved, with heat treatment at 80 degrees C proving an effective first step in the purification of these recombinant enzymes from extracts of the E. coli host. Purified recombinant S. solfataricus PGK and GraP-DH showed half lives of 39 min and 17 h, respectively, at 80 degrees C. Unlike bacterial GraP-DH enzymes, S. solfataricus GraP-DH was able to use both NAD+ and NADP+ as cofactors, but exhibited a marked preference for NADP+.
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Jones CE, Arrington J, Beise EJ, Bray B, Carr RW, Filippone BW, Gao H, Lung A, McKeown RD, Mueller B, Pitt ML, DeSchepper D, Dodson G, Dow K, Ent R, Farkhondeh M, Hansen J, Korsch W, Kramer LH, Lee K, Makins NC, Milner RG, Tieger DR, Welch TP, Candell E, Napolitano J, Tripp C, Wojtsekhowski BB, Lorenzon W. Measurement of the spin-dependent asymmetry in 3He. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1995; 52:1520-1523. [PMID: 9970656 DOI: 10.1103/physrevc.52.1520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Jones CE, Fleming TM, Piper PW, Littlechild JA, Cowan DA. Cloning and sequencing of a gene from the archaeon Pyrococcus furiosus with high homology to a gene encoding phosphoenolpyruvate synthetase from Escherichia coli. Gene 1995; 160:101-3. [PMID: 7628701 DOI: 10.1016/0378-1119(95)00128-s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A gene from the hyperthermophilic archaeon Pyrococcus furiosus, strain Vc1 (DSM 3638), contains an 817-amino-acid open reading frame which shows 42% identity to the phosphoenolpyruvate (PEP) synthetase of Escherichia coli. This putative P. furiosus PEP synthetase is slightly larger than the E. coli enzyme, the region between residues 58 and 89 being absent from the latter.
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Bulten HJ, Anthony PL, Arnold RG, Arrington J, Beise EJ, Belz E, Bosted PE, Chapman MS, Coulter KP, Dietrich FS, Ent R, Epstein M, Filippone BW, Gao H, Gearhart RA, Geesaman DF, Hansen J, Holt RJ, Jackson HE, Jones CE, Keppel CE, Kinney E, Kuhn SE, Lee K, Lorenzon W, Lung A, Makins NC, Margaziotis DJ, McKeown RD, Milner RG, Mueller B, Napolitano J, Nelson J, O'Neill TG, Papavassiliou V, Petratos GG, Potterveld DH, Rock SE, Spengos M, Szalata ZM, Tao LH, White JL, Zeidman B. Exclusive electron scattering from deuterium at high momentum transfer. PHYSICAL REVIEW LETTERS 1995; 74:4775-4778. [PMID: 10058596 DOI: 10.1103/physrevlett.74.4775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Abstract
This paper reports the occurrence of human parvovirus B19 infection in seven healthcare workers in an acute hospital. The clinical presentation mimicked that of rubella and the diagnosis was made by the detection of human parvovirus B19 IgM antibody in blood samples taken from the affected members of staff. The paper discusses the importance of accurate diagnosis of B19 infection because this virus has been implicated in causing or exacerbating a variety of medical conditions. B19 infection may be serious for people with chronic haemolytic anaemias, those who are immunocompromised or those who are pregnant. B19 infection in pregnancy may be a cause of hydrops fetalis, particularly if the infection occurs during the second trimester. This is in contrast to the risk of intra-uterine rubella infection which is maximal in the first few weeks of pregnancy and which affects fetal development. The paper highlights the need for guidelines for occupational health practitioners on the management of parvovirus B19 infection and the need to make healthcare workers aware of the importance of this infection.
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Jones CE, Davis MB, Darling JL, Geddes JF, Thomas DG, Harding AE. Loss of heterozygosity for DNA polymorphisms mapping to chromosomes 10 and 17 and prognosis in patients with gliomas. J Neurol Neurosurg Psychiatry 1995; 58:218-21. [PMID: 7876855 PMCID: PMC1073321 DOI: 10.1136/jnnp.58.2.218] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Twenty nine patients with gliomas were investigated for loss of heterozygosity for 40 DNA polymorphisms in tumour DNA, particularly concentrating on those mapping to chromosomes 10 and 17. Eight of 18 grade IV gliomas showed loss of sequences from chromosomes 10, 17, or both. The data suggested total loss of one copy of chromosome 10, but there were interstitial deletions of the short arm of chromosome 17 in three of five tumours. Heterogeneous interstitial deletions of chromosome 17 were also found in two lower grade astrocytomas and one benign oligodendroglioma. The striking finding of this study was that patients with high grade gliomas whose tumours exhibited loss of heterozygosity for chromosomes 10, 17, or both survived significantly longer after surgery (median 17.4 months) than those whose tumours did not show loss of these chromosomes (median 6.7 months). These findings suggest that there is a subset of particularly aggressive high grade gliomas with no currently known molecular genetic abnormalities.
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Belz JE, Potterveld DH, Anthony P, Arnold RG, Arrington J, Beck D, Beise EJ, Bosted PE, Bulten H, Chapman MS, Coulter KP, Dietrich F, Ent R, Epstein M, Filippone BW, Gao H, Gearhart RA, Geesaman DF, Hansen J, Holt RJ, Jackson HE, Jones CE, Keppel CE, Kinney ER, Kuhn S, Lee K, Lorenzon W, Lung A, Makins NC, Margaziotis DJ, McKeown RD, Meziani ZE, Milner RG, Mueller B, Napolitano J, Nelson J, O'Neill TG, Papavassiliou V, Petratos GG, Rock SE, Segel RE, Spengos M, Szalata ZM, Tao LH, White JL, Zeidman B. Two-Body Photodisintegration of the Deuteron up to 2.8 GeV. PHYSICAL REVIEW LETTERS 1995; 74:646-649. [PMID: 10058812 DOI: 10.1103/physrevlett.74.646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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116
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Hansen J, Titko MA, DeSchepper D, Dodson G, Donnelly TW, Dow K, Ent R, Farkhondeh M, Korsch W, Kramer LH, Lee K, Makins NC, Milner RG, Tieger DR, Welch TP, Jones CE, Arrington J, Beise EJ, Bray B, Carr RW, Filippone BW, Gao H, Lung A, McKeown RD, Mueller B, Pitt ML, Schulze R, Sauer PU, Candell E, Napolitano J, Tripp C, Wojtsekhowski BB, Lorenzon W. Transverse-Longitudinal Asymmetry in the Quasielastic 3He-->(e. PHYSICAL REVIEW LETTERS 1995; 74:654-657. [PMID: 10058814 DOI: 10.1103/physrevlett.74.654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Jones CE, Shama G, Andrew PW, Roberts IS, Jones D. Comparative study of the growth of Listeria monocytogenes in defined media and demonstration of growth in continuous culture. THE JOURNAL OF APPLIED BACTERIOLOGY 1995; 78:66-70. [PMID: 7883647 DOI: 10.1111/j.1365-2672.1995.tb01675.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A basic requirement for physiological studies with Listeria monocytogenes is a chemically defined medium that supports growth of the bacterium in batch and continuous culture. A number of such media have been devised but comparative studies of their efficiency are few and none has been used in continuous culture. Six of the media were compared for their ability to sustain sequential growth of L. monocytogenes in static and aerated batch culture with glucose as sole carbon source. The most suitable, judged on the basis of ease of preparation, growth rate and yield, was that of Trivett and Meyer (1971). This medium was shown to support growth of L. monocytogenes NCTC 7973 in continuous culture in a chemostat. A lytic phenomenon, noted with the same strain under anaerobic conditions and in batch culture in the chemostat, is discussed.
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Muram D, Jones CE. Use of a menstrual calendar in patients with Rokitansky syndrome. A report of two cases. THE JOURNAL OF REPRODUCTIVE MEDICINE 1994; 39:923-5. [PMID: 7853289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In two cases the menstrual calendar was used to determine the cyclic nature of abdominal pain in women with the Rokitansky syndrome who could not otherwise find a regular pattern in their symptoms. Surgical intervention to remove the rudimentary bicornuate uterus was needed in both, and complete resolution of pain was attained. The menstrual calendar is a valuable diagnostic tool in confirming the cyclic nature of pain and can be used in guiding treatment decisions.
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Poelker M, Coulter KP, Holt RJ, Jones CE, Kowalczyk RS, Young L, Zeidman B, Toporkov DK. High-density production of spin-polarized atomic hydrogen and deuterium. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 50:2450-2458. [PMID: 9911164 DOI: 10.1103/physreva.50.2450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Gao H, Arrington J, Beise EJ, Bray B, Carr RW, Filippone BW, Lung A, McKeown RD, Mueller B, Pitt ML, Jones CE, DeSchepper D, Dodson G, Dow K, Ent R, Farkhondeh M, Hansen J, Korsch W, Kramer LH, Lee K, Makins N, Milner RG, Tieger DR, Welch TP, Candell E, Napolitano J, Wojtsekhowski BB, Tripp C, Lorenzon W. Measurement of the neutron magnetic form factor from inclusive quasielastic scattering of polarized electrons from polarized 3He. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1994; 50:R546-R549. [PMID: 9969782 DOI: 10.1103/physrevc.50.r546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Quist EE, Lee SC, Vasan R, Foresman B, Gwirtz P, Jones CE. Chronic sympathectomy of canine cardiac ventricles affects Gs-adenylyl cyclase coupling and muscarinic receptor density. J Cardiovasc Pharmacol 1994; 23:936-43. [PMID: 7523786 DOI: 10.1097/00005344-199406000-00012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The effect of chronic ventricular sympathectomy on sarcolemmal muscarinic receptor (MR) and beta-adrenoceptor densities and coupling of these receptors to adenylyl cyclase was examined. Microsomal membranes were isolated from right and left ventricles of control dogs (sham- and nonoperated) and dogs with ventricles sympathectomized 4 weeks earlier. Relative to control membranes, MR density was decreased in left but not right ventricular (LV, RV) membranes from sympathectomized hearts. Relative carbachol inhibition of adenylyl cyclase was similar in RV and LV membranes from both heart groups, however, Although beta-adrenoceptor densities and ratio of beta 1- and beta 2-adrenoceptor subtypes did not change, basal adenylyl cyclase activity was 40% less in sympathectomized membranes as compared with control membranes. Furthermore, relative stimulation of adenylyl cyclase by isoproterenol was twofold greater in sympathectomized heart membranes. Because maximally stimulated adenylyl cyclase activity by NaF or MnCl2 was identical in sympathectomized and control membranes, the reduction in basal activity may not be related to a decrease in Gs and adenylyl cyclase. In support of this hypothesis, Gs alpha content as estimated from optimal cholera toxin-catalyzed ADP-ribosylation was similar in control and sympathectomized membranes. Therefore, an alteration in Gs interaction with adenylyl cyclase may account for the reduction in basal adenylyl cyclase activity and the increased relative responsiveness of adenylyl cyclase to isoproterenol in chronically sympathectomized ventricular membranes.
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Makins NC, Ent R, Chapman MS, Hansen J, Lee K, Milner RG, Nelson J, Arnold RG, Bosted PE, Keppel CE, Lung A, Rock SE, Spengos M, Szalata ZM, Tao LH, White JL, Coulter KP, Geesaman DF, Holt RJ, Jackson HE, Papavassiliou V, Potterveld DH, Zeidman B, Arrington J, Beise EJ, Belz E, Filippone BW, Gao H, Lorenzon W, Mueller B, McKeown RD, O'Neill TG, Epstein M, Margaziotis DJ, Napolitano J, Kinney E, Anthony PL, Dietrich FS, Gearhart RA, Patratos GG, Kuhn SE, Bulten H, Jones CE. Momentum transfer dependence of nuclear transparency from the quasielastic 12C(e,e'p) reaction. PHYSICAL REVIEW LETTERS 1994; 72:1986-1989. [PMID: 10055759 DOI: 10.1103/physrevlett.72.1986] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Fletcher CV, Collier AC, Rhame FS, Bennett D, Para MF, Beatty CC, Jones CE, Balfour HH. Foscarnet for suppression of human immunodeficiency virus replication. Antimicrob Agents Chemother 1994; 38:604-7. [PMID: 7911290 PMCID: PMC284505 DOI: 10.1128/aac.38.3.604] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The effect of foscarnet against human immunodeficiency virus (HIV) was evaluated in nine HIV-infected individuals; six completed 28 days of induction therapy. The overall mean increase in CD4+ lymphocytes was 64 cells per mm3. The mean decline in the HIV antigen concentration was 108 pg/ml (P = 0.03), and suppression was related to systemic foscarnet exposure by a maximum-effect pharmacodynamic model.
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Bojar RA, Eady EA, Jones CE, Cunliffe WJ, Holland KT. Inhibition of erythromycin-resistant propionibacteria on the skin of acne patients by topical erythromycin with and without zinc. Br J Dermatol 1994; 130:329-36. [PMID: 8148274 DOI: 10.1111/j.1365-2133.1994.tb02929.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Propionibacteria resistant to high concentrations of erythromycin [minimal inhibitory concentration (MIC) > or = 0.5 mg/ml] are now commonly isolated from the skin of antibiotic-treated acne patients. This double-blind study was carried out to assess the ability of 4% w/v erythromycin with and without 1.2% w/v zinc acetate to reduce the numbers of erythromycin-resistant propionibacteria in vivo, and also to monitor the acquisition of resistant strains de novo during therapy. Under laboratory conditions, erythromycin-resistant propionibacteria were shown to be as sensitive to zinc acetate as fully sensitive strains. In vivo, the erythromycin/zinc complex and erythromycin alone produced highly significant reductions in total propionibacteria (P < 0.001) and in the number of erythromycin-resistant strains (P < 0.001 at 8 weeks). After 12 weeks, resistant propionibacteria were reacquired, or acquired de novo, by three patients treated with erythromycin alone and four patients treated with the erythromycin/zinc complex. In contrast, changes in numbers of Micrococcaceae were slight and, after 12 weeks, erythromycin-resistant strains were predominant in both treatment groups. In vitro MIC determinations suggested that this finding might be explained by the exceptionally high degree of erythromycin resistance displayed by some staphylococcal strains (MIC > 4 mg/ml) and by the relative insensitivity of all staphylococcal strains to zinc acetate. Erythromycin with and without zinc was clinically effective, and both preparations produced significant reductions in acne grade, and inflamed and non-inflamed lesion counts (P < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
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He R, Reid DM, Jones CE, Shulman NR. Spectrum of Ig classes, specificities, and titers of serum antiglycoproteins in chronic idiopathic thrombocytopenic purpura. Blood 1994; 83:1024-32. [PMID: 8111044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The characteristic decreased recovery and survival of transfused platelets in nonalloimmunized patients with idiopathic thrombocytopenic purpura (ITP) suggest that plasma antiplatelet autoantibodies (autoAbs) are present in almost all cases. Studies emphasizing reactions of IgG autoAbs with platelet glycoprotein (GP) IIb/IIIa indicate that less than 50% of ITP patients have detectable serum Abs, and that many of these Abs may not be pathogenic because they are directed against epitopes in the cytoplasmic domain of GPIIIa (Fujisawa et al, Blood 77:2207, 1991 and 79:1441, 1992). We evaluated the contribution of Ig classes other than IgG to the overall incidence of serum Abs in 47 patients with chronic ITP and the frequency of reactions with GPs IIb/IIIa, Ib/IX, IV, and Ia/IIa. Abs were further characterized by their reactions with cytosolic or exosolic GP epitopes and their titers and apparent affinities. Using immunobead techniques we found (1) anti-GPs in 85% of sera; (2) IgA and IgG Abs each in 68%, together in 51%; (3) IgM agglutinins in 15%, always with another Ab class; (4) GP Ib/IX, IIb/IIIa, IV, and Ia/IIa targets in 83%, 81%, 38%, and 28% of cases, respectively; (5) 93% of positive sera reactive with more than one GP; but GP IV or Ia/IIa never the sole target; (6) Abs against cytosolic epitopes on one or more of GPs IIIa, Ib alpha, and IIb beta in 66% of sera, always accompanied by Abs against exosolic epitopes of the same or a different GP; (7) autoAbs against cytosolic GP epitopes in 38% of 16 patients recovered from posttransfusion purpura and drug purpura; and (8) evidence that serum ITP Abs, often high-titered, saturate platelets less than alloAbs against the same GPs. Whereas Abs against external GP epitopes are a distinctive marker for ITP in 80% of patients, Abs against internal GP epitopes are likely a secondary phenomenon of platelet destruction and not pathogenic. Anti-GPs against exosolic epitopes were also found in eluates of patient's platelets, suggesting that they have pathogenic significance.
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