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Udoh K, Wessel C, Branch R, Mahler J, Holland J, Coleman B, Alluri S, Jordan S, Ahmed A, Polzin B, Dye C, Smith K, Brown A, Gully Z, Sawning S, Ziegler C, Ruther M, Jones C, Miller K. Evaluating the Feasibility of a Novel Firearm Injury Prevention Program for Pre-adolescent Children Through Health Care and Community-Based Partnerships: The Future Healers Program Pilot Study. Am Surg 2024; 90:1050-1058. [PMID: 38093402 DOI: 10.1177/00031348231220595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
BACKGROUND Firearm violence is an American public health crisis that negatively impacts children and disproportionately affects Black youth. Few firearm injury prevention programs have been described in pre-adolescent children. The Future Healers Program is a novel collaboration constructed via partnership between the medical school, trauma center, academic surgery department, and local non-profit community organization. Our study sought to evaluate if (1) partnering with community organizations facilitated recruitment of children with prior exposure to firearm violence and (2) the health care community was a potential trusted partner appropriate for program delivery. METHODS Children aged 4-13 were recruited to join the program via news outlets and social media and in partnership with a local non-profit organization. Of the children and parents participating in the program, 48% (44/92) and 59% (38/64), respectively, completed an IRB-approved survey study. Pearson's chi-square, percentages, and 95% confidence intervals evaluated differences between children and caregivers on sociodemographic characteristics, firearm exposure (FE), firearm violence exposure (FVE), and perception of health care. Participant's residence was geocoded in relationship to incidents of firearm injury (2008-2021) in the same region. RESULTS Caregivers (95%) and children (84%) reported substantial exposure to firearm violence and resided in areas with frequent firearm injury incidents. Notably, 82% of caregivers and 66% of children reported having a family member injured by gunfire. A high percentage of caregivers (79%) and children (91%) self-reported trust in the health care system. CONCLUSION Partnerships between community organizations and health care systems can develop prevention programs that effectively recruit and engage pre-adolescent children impacted by firearm violence.
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Affiliation(s)
- Karen Udoh
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Caitlin Wessel
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Rheyana Branch
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Jessica Mahler
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Joseph Holland
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Briana Coleman
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Satya Alluri
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Symone Jordan
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Anam Ahmed
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Baylee Polzin
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Crystal Dye
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Kiara Smith
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Alyssa Brown
- Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Zahara Gully
- Jefferson Community and Technical College, Louisville, KY, USA
| | - Susan Sawning
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Craig Ziegler
- University of Louisville School of Medicine, Louisville, KY, USA
| | - Matthew Ruther
- University of Louisville School of Urban and Public Affairs, Louisville, KY, USA
| | - Christopher Jones
- University of Louisville School of Medicine, Louisville, KY, USA
- Department of Surgery, Division of Transplant, University of Louisville School of Medicine, Louisville, KY, USA
| | - Keith Miller
- University of Louisville School of Medicine, Louisville, KY, USA
- Department of Surgery, Division of Trauma and Surgery Critical Care, University of Louisville School of Medicine, Louisville, KY, USA
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Arismendi T, Schaper N, Falkenhain A, Karabetsos KC, Syed A, Branch R, Moreno M, Pickney C, Obayi I, Lucas SJ, González E, Graves A, Kauffman B, Maningat A, Zielke T, Nam J, Soult MC, Aziz F, Bose S, Smeds MR. Fourth-Year Medical Students' Perceptions of Vascular Surgery: Can We Improve the Pipeline? Ann Vasc Surg 2023; 97:147-156. [PMID: 37495096 DOI: 10.1016/j.avsg.2023.07.099] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Since their inception, Integrated Vascular Surgery Residency (IVSR) programs have expanded widely and attracted highly competitive medical students by offering a more focused approach to learning both open surgical and endovascular techniques. However, despite substantial modifications to the training paradigm, a shortage of vascular surgeons is still projected through 2050. We aimed to gather and analyze fourth-year medical students' knowledge and perceptions of vascular surgery (VS) to further inform strategies for recruiting future vascular surgeons. METHODS We sent anonymous electronic questionnaires to fourth-year medical students at 7 allopathic and 3 osteopathic medical schools, with questions detailing demographics, specialty preferences, and exposure to and perceptions of VS. Descriptive statistics were obtained, and responses were compared between students applying to surgical specialties (SS) and nonsurgical specialties (NSS). RESULTS Two hundred eleven of 1,764 (12%) participants responded (56% female). 56% reported VS exposure, most commonly during the third year. 64 (30%) planned to apply to SS. 57% of respondents reported knowledge of the management of vascular disease, and 56% understood procedures performed by vascular surgeons. Ranking the importance of factors in choosing specialties, SS selected "experiences gained during medical school rotations" (P < 0.05), "types and/or variety of treatment modalities used in this field" (P < 0.001), and "interest in the pathology or disease processes treated" (P < 0.05) as highest priorities. NSS preferred "lifestyle (work-life balance) as an attending" (P < 0.001). Only 7% of all respondents believed vascular surgeons have a good work-life balance, with a larger percentage of SS (P < 0.001) agreeing. Stratified by gender, female students rated "limited ability of childbirth during residency and/or postponement of family plans" (P < 0.05), "gender-related concerns, such as discrimination at work or unfair career possibilities" (P < 0.001), and "fear of unfair competition" (P < 0.05) as potential negative aspects of VS careers. 55% of respondents believed the IVSR makes VS more appealing. CONCLUSIONS Medical students perceive poor quality of life and work-life balance as deterring factors to a career in VS. Opportunities exist to educate students on the pathologies treated, procedures performed, and attainable quality of life available in our field. We should also continue to develop recruitment strategies to stimulate student interest and increase early exposure in VS.
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Affiliation(s)
| | | | | | | | - Ali Syed
- Medical College of Wisconsin, Milwaukee, WI
| | - Rheyana Branch
- University of Louisville School of Medicine, Louisville, KY
| | - Marvi Moreno
- Kirk Kerkorian School of Medicine at the University of Nevada, Las Vegas, NV
| | - Cole Pickney
- Case Western Reserve University School of Medicine, Cleveland, OH
| | - Ikpechukwu Obayi
- City University of New York (CUNY) School of Medicine, New York, NY
| | - Spencer J Lucas
- Sanford School of Medicine, University of South Dakota, Vermillion, SD
| | | | - Aaron Graves
- College of Osteopathic Medicine, Kansas City University, Kansas City, MO
| | | | - Alexandra Maningat
- University of the Incarnate Word School of Osteopathic Medicine, San Antonio, TX
| | - Tara Zielke
- Stritch School of Medicine, Loyola University Chicago, Maywood, IL
| | - Janice Nam
- Stritch School of Medicine, Loyola University Chicago, Maywood, IL
| | - Michael C Soult
- Stritch School of Medicine, Loyola University Chicago, Maywood, IL
| | - Faisal Aziz
- Penn State College of Medicine, State College, PA
| | - Saideep Bose
- Saint Louis University School of Medicine, Saint Louis, MO; Division of Vascular and Endovascular Surgery, Department of Surgery, Saint Louis University, Saint Louis, MO
| | - Matthew R Smeds
- Saint Louis University School of Medicine, Saint Louis, MO; Division of Vascular and Endovascular Surgery, Department of Surgery, Saint Louis University, Saint Louis, MO.
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Arismendi T, Schaper N, Bose S, Karabetsos KC, Syed A, Branch R, Moreno M, Pickney C, Obayi I, Lucas SJ, González E, Graves A, Kauffman B, Maningat A, Zielke T, Nam J, Soult M, Aziz F, Smeds MR. Fourth Year Medical Students’ Perceptions Of Vascular Surgery: Can We Improve The Pipeline? Ann Vasc Surg 2023. [DOI: 10.1016/j.avsg.2022.12.062] [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: 01/21/2023]
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Ho KM, Ismail H, Lee KC, Branch R. Use of Intrathecal Neostigmine as an Adjunct to Other Spinal Medications in Perioperative and Peripartum Analgesia: A Meta-analysis. Anaesth Intensive Care 2019; 33:41-53. [PMID: 15957690 DOI: 10.1177/0310057x0503300107] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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: 12/18/2022]
Abstract
Intrathecal neostigmine has been used as an adjunct to intrathecal local anaesthetic or opioid to prolong regional analgesia and improve haemodynamic stability, with variable results. This meta-analysis aims to evaluate the effectiveness and side-effects of intrathecal neostigmine in the perioperative and peripartum settings. The literature search was based on Cochrane Controlled Trials Register, EMBASE and MEDLINE (from 1966 to 14 November 2003) databases. Volunteer and animal studies were excluded. We identified 26 studies and 19 were considered suitable for detailed data extraction. Intrathecal neostigmine increased the incidence of nausea and vomiting (OR 5.0, 95% CI: 3.4 to 7.3; P<0.00001), bradycardia requiring intravenous atropine (OR 2.7, 95% CI: 1.4 to 5.4; P=0.005), and anxiety, agitation, or restlessness (OR 10.3, 95% CI: 3.7 to 28.9; P=0.00001). It improved the overall 24 hour VAS score (–1.4 VAS pain score, 95% CI: -1.7 to -1.2, P<0.00001), delayed the time of first request for rescue analgesia (168 min, 95% CI: 125 to 211; P<0.00001), and reduced the total number of rescue injections of nonsteroidal anti-inflammatory drug within the first 24 hours (-0.8, 95% CI: -1.1 to -0.4; P=0.00001). It did not affect the duration of motor blockade (3.5 min, 95% CI: -1.5 to 8.6; P=0.17) or the total amount of ephedrine required (-0.4 mg, 95% CI: -1.5 to 0.7; P=0.5). Adding intrathecal neostigmine to other spinal medications improves perioperative and peripartum analgesia marginally when compared with placebo. It is associated with significant side-effects and the disadvantages outweigh the minor improvement in analgesia achieved.
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Affiliation(s)
- K M Ho
- Department of Anaesthesia and Intensive Care, North Shore Hospital, Auckland, New Zealand
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Ayres B, Buch B, Kondragunta V, Gillatt D, Romkes M, Branch R, Persad R. MP-19.13: CYP3A mediated dapsone recovery ratio may predict tumour progression in superficial bladder cancer. Urology 2007. [DOI: 10.1016/j.urology.2007.06.548] [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: 10/22/2022]
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Tebb K, Williams J, Branch R, Goldberg A, Pai-Dhungat M, Wibbelsman C, Shafer M. 59 OBTAINING SEXUAL HISTORIES AND SCREENING TEENS FOR CHLAMYDIA: ARE PROVIDERS BIASED? J Investig Med 2005. [DOI: 10.2310/6650.2005.00005.58] [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: 11/18/2022]
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Abstract
The use of the drug cyclosporin is limited by toxicity. It would be advantageous to develop therapeutic monitoring of cyclosporin which would predict the development of clinical toxicity. In the present study, alternative methods of measuring cyclosporin levels were evaluated in a heterogenous population of transplant patients, comparing a fluorescent polarization immunoassay using a non-specific polyclonal antibody, which measures both cyclosporin and its main metabolites, and a specific high-performance liquid chromatography assay for unchanged cyclosporin in blood. Neither measured variable alone correlated with laboratory evidence of renal toxicity (serum creatinine) or liver toxicity (serum glutamate transaminase, lactic dehydrogenase, alkaline phosphatase, or serum bilirubin). The relationship between metabolites and parent cyclosporin was quantitated using the ratio of cyclosporin levels determined by fluorescent polarization immunoassay over levels determined by high-performance liquid chromatography. A cohort of patients with markedly elevated ratios of cyclosporin were identified. When patients' data were reviewed collectively and individually there was a correlation between an elevated ratio and the serum bilirubin (r = 0.41, P less than 0.001). This association could be either due to cyclosporin as a cause of cholestasis or to cholestasis from any cause resulting in metabolite accumulation. Further studies are needed to clarify the role of cyclosporin in hepatic dysfunction and develop early, specific markers for this cyclosporin-associated toxicity.
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Affiliation(s)
- R E Bluhm
- Department of Medicine, Vanderbilt University, School of Medicine, Nashville, TN 37232
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Bluhm R, Branch R, Johnston P, Stein R. Aplastic anemia associated with canthaxanthin ingested for 'tanning' purposes. JAMA 1990; 264:1141-2. [PMID: 2117075] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Aplastic anemia with a fatal outcome occurred in a previously healthy young woman after ingesting canthaxanthin taken for the purpose of skin "tanning" and provided to her by a commercial tanning salon. Canthaxanthin is a synthetic, non-provitamin A carotenoid that is highly lipid-soluble; it colors the skin by deposition in the epidermis and subcutaneous fat. It is readily available through commercial tanning salons and mail advertisements, but despite advertising claims that it is harmless, investigation regarding the safety of oral doses of canthaxanthin in humans has not been conducted. It is not approved as a prescription or an over-the-counter preparation by the Food and Drug Administration. The drug's present means of distribution makes monitoring for toxic effects difficult. Thus, the frequency of adverse effects associated with canthaxanthin use, such as bone marrow suppression, is unknown. Even if there is only a small risk of these toxic effects, the use of the drug for cosmetic purposes does not justify this risk.
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Affiliation(s)
- R Bluhm
- Department of Pharmacy, Vanderbilt University School of Medicine, Nashville, TN 37232-6602
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Hande K, Bennett R, Hamilton R, Grote T, Branch R. Metabolism and excretion of etoposide in isolated, perfused rat liver models. Cancer Res 1988; 48:5692-5. [PMID: 3167829] [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: 01/04/2023]
Abstract
The clearance of etoposide and formation of etoposide glucuronide have been measured in an isolated, perfused rat liver model to evaluate the effect of impaired hepatic function on etoposide kinetics. Hepatocellular injury was produced by pretreatment of rats with allyl alcohol or carbon tetrachloride; ligation of the bile duct simulated obstructive biliary disease. Etoposide clearance (3.59 +/- 1.06 ml/min) was reduced by both carbon tetrachloride (2.07 +/- 0.64 ml/min; P = 0.05) and allyl alcohol treatment (2.14 +/- 0.62 ml/min; P = 0.05). Biliary obstruction also impaired etoposide clearance but to a lesser extent than hepatocellular injury (2.47 +/- 0.69 ml/min; P = 0.20 versus control). In both hepatocellular and obstructive models, direct biliary etoposide excretion decreased. The metabolic clearance of etoposide to its glucuronide declined by 36% in the hepatotoxin models but was not decreased by biliary obstruction. Following hepatic injury, there is a reduction in the metabolism and excretion of etoposide by the liver. This effect is most marked on biliary drug excretion. Obstructive biliary disease does not significantly alter etoposide glucuronidation. Since most cancer patients have increased bilirubin on the basis of obstructive disease, little or no etoposide dose alteration will be needed. However, in the patient with significant hepatocellular injury, impaired etoposide clearance will be more pronounced, and etoposide dose alterations may be needed.
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Affiliation(s)
- K Hande
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37232
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Hande K, Anthony L, Hamilton R, Bennett R, Sweetman B, Branch R. Identification of etoposide glucuronide as a major metabolite of etoposide in the rat and rabbit. Cancer Res 1988; 48:1829-34. [PMID: 3349461] [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: 01/05/2023]
Abstract
Isolated livers from male Sprague-Dawley rats were perfused at 20 ml/min for 3 h at 37 degrees C with 100 ml of an oxygenated, recirculating solution of 20% rat blood in Krebs bicarbonate buffer containing 20 micrograms/ml [3H]etoposide. Ninety % of administered radioactivity was eliminated in bile over a 3-h collection period. The clearance of etoposide was 3.56 ml/min indicating that, in the rat, it is not highly extracted. Its clearance is, therefore, independent of hepatic blood flow. Etoposide was both excreted into the bile and metabolized by the liver. Perfusate and bile samples analyzed by reverse-phase high-performance liquid chromatography techniques were found to contain three peaks of radioactivity. Positive and negative ion fast atom bombardment mass spectrometry identified the first two peaks as etoposide glucuronides and the third peak as parent drug. Following the i.v. administration of etoposide to rabbits, etoposide glucuronide was also identified in rabbit urine. The recovery of etoposide both from rabbit urine and rat bile was increased by preincubation with glucuronidase. However, the glucuronides were relatively resistant to the action of glucuronidase and showed varying sensitivity to the type of glucuronidase and the reaction conditions used. These studies document the presence of etoposide glucuronide as an etoposide metabolite in two mammalian species and suggest that previous clinical studies using beta-glucuronidase to quantitate glucuronide formation may have underestimated this metabolite due to its relative resistance to some glucuronidase preparations.
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Affiliation(s)
- K Hande
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
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Branch R. Citizen advocacy. Nurs Mirror 1985; 160:31-2. [PMID: 3845573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Branch R. Community Mental Handicap Nurses Association. 2. One way of working. Nurs Mirror 1984; 158:iv-v. [PMID: 6560570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Branch R. Nursing Mirror community forum. 4. The mental handicap nurse's role. Nurs Mirror 1983; 156:i-iii. [PMID: 6552580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Küpfer A, James R, Carr K, Branch R. Analysis of hydroxylated and demethylated metabolites of mephenytoin in man and laboratory animals using gas-liquid chromatography and high-performance liquid chromatography. J Chromatogr 1982; 232:93-100. [PMID: 7142342 DOI: 10.1016/s0378-4347(00)86011-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Separation of urinary mephenytoin metabolites was evaluated under various gas-liquid chromatographic (GLC) and high-performance liquid chromatographic (HPLC) conditions. A simple and rapid alkylation procedure is described for GLC-using a nitrogen sensitive thermionic detector. The in situ formation of sodium methinylsulfinylmethide is used as base for the perpropylation of hydantoins and their metabolites. Normal-and reversed-phase HPLC of the underivatized compounds was performed using four different types of stationary phases. None of the GLC systems separated all the six hydantoin compounds tested, whereas, normal-and reversed-phase HPLC were able to obtain a complete separation of these compounds. The major metabolites of mephenytoin were 5-phenyl-5-ethylhydantoin, 3-methyl-5-(4-hydroxyphenyl)-5-ethylhydantoin and 5-(4-hydroxyphenyl)-5-ethylhydantoin in man, rat, mouse, rabbit, and guinea pig. 3-Methyl-5-phenyl-5-(2-hydroxyethyl)-hydantoin and 3-methyl-5-(3-hydroxyphenyl)-5-ethylhydantoin are major metabolites in the dog.
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Abstract
The role of prostaglandins in regulating splanchnic blood flow during hemorrhage has been investigated in the anesthesized dog using the microsphere technique. Indomethacin selectively decreased blood flow to the gastrointestinal tract, but did not change hepatic arterial flow. Hemorrhage (5 ml/kg and 10 ml/kg) generally increased peripheral resistance in the gastrointestinal tract as much as total peripheral resistance was increased. However, resistance in the stomach and pancreas increased to a greater extent while there was no change in hepatic arterial resistance. The effect of hemorrhage on splanchnic blood flow distribution was not changed by prior indomethacin treatment. Thus, prostaglandins contribute to the regulation of basal flow to the gastrointestinal tract but are not involved in regulatory changes in splanchnic blood flow during hemorrhage. The enhanced sensitivity of the gastric and pancreatic vascular beds to hemorrhage may contribute to local toxicity during hemorrhage.
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Abstract
The elimination half-life (T1/2) of canrenone, the principal unconjugated metabolite of spironolactone, was 59 h (range 32-105 h) in 5 patients with chronic liver disease and 37 h (range 19-48 h ) in 7 patients withcongestive heart failure. In comparison the T1/2 in normal subjects was 13.5-24 h in previous reports and 20.5 h in the present study, However there was no evidence of greater cumulation of canrenone in the plasma of those patients with a prolonged T1/2.
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Levine D, Ramsay L, Auty R, Branch R, Tidd M. Antagonism of endogenous mineralocorticoids in normal subjects by prorenoate potassium and spironolactone. Eur J Clin Pharmacol 1976; 09:381-6. [PMID: 786663 DOI: 10.1007/bf00606552] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The pharmacological activity of single oral doses of a new aldosterone antagonist, prorenoate potassium, has been compared with spironolactone and placebo in a balanced double-blind crossover study in six healthy subject. Endogenous mineralocorticoids were stimulated by administration of frusemide followed by dietary sodium restriction, and the urinary excretion of electrolytes in response to prorenoate potassium, spironolactone and placebo was measured over a 24 hour period. Significant activity of prorenoate potassium and spironolactone was observed between 2 - 24 hours after medication, with peak activity at 6 - 8 hours. The active drugs significantly increased sodium excretion and the sodium : potassium (Na/K) ratio, but changes in potassium excretion were not significant. The total urine Na/K response to prorenoate potassium 45 mg was significantly greater than to spironolactone 100 mg.
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