32 results on '"Marcinak JF"'
Search Results
2. Cellulitis.
- Author
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Domingeuz SR, Marcinak JF, Daum RS, Goodman EL, Chang HR, and Swartz MN
- Published
- 2004
3. Clinical malaria and sickle cell disease among multiple family members in Chicago, Illinois.
- Author
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Glikman D, Nguyen-Dinh P, Roberts JM, Montgomery CP, Daum RS, and Marcinak JF
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- 2007
- Full Text
- View/download PDF
4. Hospital-based directly observed therapy for HIV-infected children and adolescents to assess adherence to antiretroviral medications.
- Author
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Glikman D, Walsh L, Valkenburg J, Mangat PD, and Marcinak JF
- Published
- 2007
- Full Text
- View/download PDF
5. Phase 1 study of safety and tolerability of an oral contraceptive containing low-dose ethinyl oestradiol combined with glecaprevir/pibrentasvir treatment in healthy premenopausal women.
- Author
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Shiller DD, Yao BB, Chen MJ, Orejudos A, Mostafa NM, Marcinak JF, Burroughs M, and Boyle C
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- Humans, Female, Adult, Young Adult, Middle Aged, Contraceptives, Oral adverse effects, Contraceptives, Oral administration & dosage, Alanine Transaminase blood, Aminoisobutyric Acids, Leucine analogs & derivatives, Leucine adverse effects, Drug-Related Side Effects and Adverse Reactions epidemiology, Drug Combinations, Benzimidazoles adverse effects, Benzimidazoles administration & dosage, Quinoxalines adverse effects, Quinoxalines administration & dosage, Premenopause, Ethinyl Estradiol adverse effects, Ethinyl Estradiol administration & dosage, Sulfonamides adverse effects, Sulfonamides administration & dosage, Antiviral Agents adverse effects, Antiviral Agents administration & dosage, Antiviral Agents therapeutic use, Healthy Volunteers, Pyrrolidines adverse effects, Pyrrolidines administration & dosage
- Abstract
Glecaprevir/pibrentasvir (GLE/PIB) is an approved guideline-recommended chronic hepatitis C virus infection treatment. GLE/PIB coadministration with ethinyl oestradiol (EE) is not recommended in current labels owing to a Phase 1 study observing Grade ≥2 alanine aminotransferase (ALT) elevation in 2 out of 12 healthy women cotreated for 11 days with GLE/PIB and oral contraceptive (OC) containing 35 μg/250 μg EE/norgestimate. No Grade ≥2 elevation was observed with low-dose (20 μg) EE (n = 14). This Phase 1 study examined safety/tolerability of GLE/PIB coadministered with an OC containing low-dose EE using a larger sample size and longer treatment duration. Healthy premenopausal women were treated with EE/levonorgestrel alone (20/100 μg, Cycles 1-2), followed by coadministration with GLE/PIB (300/120 mg; Cycles 3-4). A safety criterion of special interest was a confirmed Grade ≥2 ALT elevation (>3× upper normal limit). Adverse events (AEs) and study drugs concentrations were examined. Of 85 enrolled women, 72 initiated combined GLE/PIB + EE/levonorgestrel treatment, 66 completed the study and 19 discontinued prematurely (non-safety reason, n = 16; AE [deemed unelated to GLE/PIB], n = 3). No participant met the safety criterion of special interest of confirmed Grade ≥2 ALT elevation. No serious/Grade ≥3 AEs were reported. Study drug concentrations were within the expected ranges. GLE/PIB in combination with an OC containing low-dose EE was generally well tolerated with no confirmed Grade ≥2 ALT elevation and no evidence of drug-induced liver injury. No pattern to the reported AEs and no new safety issues were identified. This was a Phase 1 study of healthy volunteers, not a registered clinical trial., (© 2024 The Authors. Journal of Viral Hepatitis published by John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
6. Consensus Guidelines: Best Practices for Detection, Assessment and Management of Suspected Acute Drug-Induced Liver Injury During Clinical Trials in Adults with Chronic Viral Hepatitis and Adults with Cirrhosis Secondary to Hepatitis B, C and Nonalcoholic Steatohepatitis.
- Author
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Treem WR, Palmer M, Lonjon-Domanec I, Seekins D, Dimick-Santos L, Avigan MI, Marcinak JF, Dash A, Regev A, Maller E, Patwardhan M, Lewis JH, Rockey DC, Di Bisceglie AM, Freston JW, Andrade RJ, and Chalasani N
- Subjects
- Adult, Clinical Trials as Topic, Hepatitis B complications, Hepatitis C complications, Hepatitis, Chronic epidemiology, Humans, Liver Cirrhosis etiology, Liver Cirrhosis virology, Non-alcoholic Fatty Liver Disease complications, Chemical and Drug Induced Liver Injury diagnosis, Chemical and Drug Induced Liver Injury therapy, Consensus, Practice Guidelines as Topic
- Abstract
With the widespread development of new drugs to treat chronic liver diseases (CLDs), including viral hepatitis and nonalcoholic steatohepatitis (NASH), more patients are entering trials with abnormal baseline liver tests and with advanced liver injury, including cirrhosis. The current regulatory guidelines addressing the monitoring, diagnosis, and management of suspected drug-induced liver injury (DILI) during clinical trials primarily address individuals entering with normal baseline liver tests. Using the same laboratory criteria cited as signals of potential DILI in studies involving patients with no underlying liver disease and normal baseline liver tests may result in premature and unnecessary cessation of a study drug in a clinical trial population whose abnormal and fluctuating liver tests are actually due to their underlying CLD. This position paper focuses on defining best practices for the detection, monitoring, diagnosis, and management of suspected acute DILI during clinical trials in patients with CLD, including hepatitis C virus (HCV) and hepatitis B virus (HBV), both with and without cirrhosis and NASH with cirrhosis. This is one of several position papers developed by the IQ DILI Initiative, comprising members from 16 pharmaceutical companies in collaboration with DILI experts from academia and regulatory agencies. It is based on an extensive literature review and discussions between industry members and experts from outside industry to achieve consensus regarding the recommendations. Key conclusions and recommendations include (1) the importance of establishing laboratory criteria that signal potential DILI events and that fit the disease indication being studied in the clinical trial based on knowledge of the natural history of test fluctuations in that disease; (2) establishing a pretreatment value that is based on more than one screening determination, and revising that baseline during the trial if a new nadir is achieved during treatment; (3) basing rules for increased monitoring and for stopping drug for potential DILI on multiples of baseline liver test values and/or a threshold value rather than multiples of the upper limit of normal (ULN) for that test; (4) making use of more sensitive tests of liver function, including direct bilirubin (DB) or combined parameters such as aspartate transaminase:alanine transaminase (AST:ALT) ratio or model for end-stage liver disease (MELD) to signal potential DILI, especially in studies of patients with cirrhosis; and (5) being aware of potential confounders related to complications of the disease being studied that may masquerade as DILI events.
- Published
- 2021
- Full Text
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7. Consensus guidelines: best practices for detection, assessment and management of suspected acute drug-induced liver injury occurring during clinical trials in adults with chronic cholestatic liver disease.
- Author
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Palmer M, Regev A, Lindor K, Avigan MI, Dimick-Santos L, Treem W, Marcinak JF, Lewis JH, Anania FA, Seekins D, Shneider BL, and Chalasani N
- Subjects
- Adult, Chemical and Drug Induced Liver Injury pathology, Cholestasis pathology, Chronic Disease, Drug Industry organization & administration, Drug Industry standards, Humans, Liver drug effects, Liver pathology, Liver physiopathology, Liver Cirrhosis, Biliary pathology, Liver Function Tests, Societies, Pharmaceutical standards, Chemical and Drug Induced Liver Injury diagnosis, Chemical and Drug Induced Liver Injury therapy, Cholestasis drug therapy, Clinical Trials as Topic statistics & numerical data, Consensus, Liver Cirrhosis, Biliary drug therapy
- Abstract
Background: Improved knowledge of the molecular pathophysiology and immunopathogenesis of cholestatic liver diseases in recent years has led to an increased interest in developing novel therapies. Patients with cholestatic liver disease often require different approaches to assessment and management of suspected drug-induced liver injury (DILI) compared to those with healthy livers and those with parenchymal liver diseases. At present, there are no regulatory guidelines or society position papers, that systematically address best practices pertaining to detection of DILI in these patients., Aims: To outline best practices for detection, assessment and management of suspected acute DILI during clinical trials in adults with the cholestatic liver diseases - Primary Biliary Cholangitis (PBC) and Primary Sclerosing Cholangitis (PSC)., Methods: This is one of the several papers developed by the IQ DILI Initiative, which is comprised of members from 16 pharmaceutical companies, in collaboration with DILI experts from academia and regulatory agencies. The contents are the result of an extensive literature review, as well as in-depth discussions among industry, regulatory and academic DILI experts, to achieve consensus recommendations on DILI-related issues occurring during clinical trials for cholestatic liver diseases., Results: Recommended best practices are outlined pertaining to hepatic eligibility criteria, monitoring of liver tests, approach to a suspected DILI signal, and hepatic discontinuation rules., Conclusions: This paper provides a framework for the approach to detection, assessment and management of suspected acute DILI occurring during clinical trials in adults with cholestatic liver disease., (© 2019 The Authors. Alimentary Pharmacology & Therapeutics published by John Wiley & Sons Ltd.)
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- 2020
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8. Consensus: guidelines: best practices for detection, assessment and management of suspected acute drug-induced liver injury during clinical trials in patients with nonalcoholic steatohepatitis.
- Author
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Regev A, Palmer M, Avigan MI, Dimick-Santos L, Treem WR, Marcinak JF, Seekins D, Krishna G, Anania FA, Freston JW, Lewis JH, Sanyal AJ, and Chalasani N
- Subjects
- Chemical and Drug Induced Liver Injury diagnosis, Chemical and Drug Induced Liver Injury epidemiology, Clinical Trials as Topic methods, Humans, Liver Function Tests methods, Liver Function Tests standards, Non-alcoholic Fatty Liver Disease diagnosis, Non-alcoholic Fatty Liver Disease epidemiology, Chemical and Drug Induced Liver Injury therapy, Clinical Trials as Topic standards, Disease Management, Non-alcoholic Fatty Liver Disease therapy, Practice Guidelines as Topic standards
- Abstract
Background: The last decade has seen a rapid growth in the number of clinical trials enrolling patients with nonalcoholic fatty liver disease and nonalcoholic steatohepatitis (NASH). Due to the underlying chronic liver disease, patients with NASH often require different approaches to the assessment and management of suspected drug-induced liver injury (DILI) compared to patients with healthy livers. However, currently no regulatory guidelines or position papers systematically address best practices pertaining to DILI in NASH clinical trials., Aims: This publication focuses on best practices concerning the detection, monitoring, diagnosis and management of suspected acute DILI during clinical trials in patients with NASH., Methods: This is one of several papers developed by the IQ DILI Initiative, comprised of members from 15 pharmaceutical companies, in collaboration with DILI experts from academia and regulatory agencies. This paper is based on extensive literature review, and discussions between industry members with expertise in drug safety and DILI experts from outside industry to achieve consensus on common questions related to this topic., Results: Recommended best practices are outlined pertaining to hepatic inclusion and exclusion criteria, monitoring of liver tests, DILI detection, approach to a suspected DILI signal, causality assessment and hepatic discontinuation rules., Conclusions: This paper provides a framework for the approach to assessment and management of suspected acute DILI during clinical trials in patients with NASH., (© 2019 John Wiley & Sons Ltd.)
- Published
- 2019
- Full Text
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9. Correction to: Liver Safety of Fasiglifam (TAK-875) in Patients with Type 2 Diabetes: Review of the Global Clinical Trial Experience.
- Author
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Marcinak JF, Munsaka MS, Watkins PB, Ohira T, and Smith N
- Abstract
In the original publication of the article, the ALT and AST values in Fig. 5a-e were capped at 10× ULN, which did not accurately reflect the narrative provided for each case. In this correction, the original Fig. 5a-e (Fig. 1a-e) and the correct Fig. 5a-5e (Fig. 2a-e) are published.
- Published
- 2018
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10. Liver Safety of Fasiglifam (TAK-875) in Patients with Type 2 Diabetes: Review of the Global Clinical Trial Experience.
- Author
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Marcinak JF, Munsaka MS, Watkins PB, Ohira T, and Smith N
- Subjects
- Adult, Aged, Alanine Transaminase blood, Clinical Trials, Phase II as Topic, Clinical Trials, Phase III as Topic, Diabetes Mellitus, Type 2 blood, Double-Blind Method, Female, Humans, Liver drug effects, Male, Middle Aged, Sitagliptin Phosphate therapeutic use, Sulfonylurea Compounds therapeutic use, Benzofurans adverse effects, Benzofurans therapeutic use, Chemical and Drug Induced Liver Injury etiology, Diabetes Mellitus, Type 2 drug therapy, Hypoglycemic Agents adverse effects, Hypoglycemic Agents therapeutic use, Sulfones adverse effects, Sulfones therapeutic use
- Abstract
Introduction: Fasiglifam (TAK-875) is a G protein-coupled receptor 40 agonist that was being investigated for treatment of type 2 diabetes mellitus (T2DM). A development program was terminated late in phase III clinical trials due to liver safety concerns., Methods: The liver safety of fasiglifam was assessed from data based on six phase II and nine phase III double-blind studies and two open-label studies with emphasis on pooled data from 15 double-blind studies from both global and Japanese development programs. Taking into consideration different daily doses of fasiglifam administered in clinical studies, the primary comparisons were between all patients exposed to fasiglifam (any dose) versus placebo, and, where applicable, versus the two active comparators, sitagliptin or glimepiride. A Liver Safety Evaluation Committee consisting of hepatologists blinded to treatment assignments evaluated hepatic adverse events (AEs) and serious AEs (SAEs) for causal relationship to study drug., Results: The analysis included data from 9139 patients with T2DM in 15 double-blind controlled studies who received either fasiglifam (n = 5359, fasiglifam group), fasiglifam and sitagliptin (n = 123), or a comparator agent (n = 3657, non-exposed group consisting of placebo and other antidiabetic agents). Exposure to treatment for more than 1 year ranged from 249 patients in the placebo arm, to 370 patients in the glimepiride arm and 617 patients in the fasiglifam 50 mg arm. The primary focus of the analysis was on the hepatic safety of fasiglifam. The overall safety profile based on treatment-emergent AEs (TEAEs), SAEs, deaths, and withdrawal due to AEs was similar between fasiglifam and placebo (excluding liver test abnormalities). However, there was an increased incidence rate of serum alanine aminotransferase (ALT) elevations > 3 × upper limit of normal (ULN), 5 × ULN, and 10 × ULN in fasiglifam-treated patients compared with those treated with placebo or active comparators. ALT elevations > 3 × ULN for fasiglifam were 2.7% compared with 0.8 and 0.5% for the active comparators and placebo. There did not appear to be a clear dose response in incidence of ALT elevations between patients receiving 25 or 50 mg daily. The cumulative incidence of elevations in serum ALT > 3 × ULN was higher in the first 6 months of treatment with fasiglifam compared with both placebo and the active comparators, but the rate of new ALT elevations appeared to be similar across all treatment groups thereafter. No demographic or baseline patient characteristics were identified to predict elevations exceeding ALT > 3 × ULN in fasiglifam-treated patients. The pattern of liver injury with fasiglifam was hepatocellular, and there were no reports of liver-related deaths, liver failure or life-threatening liver injury. Most fasiglifam-associated ALT elevations were asymptomatic and resolved promptly upon discontinuing treatment, but in two patients the recovery was prolonged. Importantly, three important serious liver injury cases were identified among fasiglifam-treated patients; one case was adjudicated to be a clear Hy's Law case and the two remaining cases were considered to closely approximate Hy's Law cases., Conclusions: Although the incidence of overall AEs, SAEs, and deaths was similar between fasiglifam and placebo, a liver signal was identified based primarily on the difference in liver chemistry values in the fasiglifam group compared with the placebo and active comparator groups. Three serious liver injuries were attributed to fasiglifam treatment. Clinical development of fasiglifam was halted due to these liver safety concerns.
- Published
- 2018
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11. Combining the G-protein-coupled receptor 40 agonist fasiglifam with sitagliptin improves glycaemic control in patients with type 2 diabetes with or without metformin: A randomized, 12-week trial.
- Author
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Peng XV, Marcinak JF, Raanan MG, and Cao C
- Subjects
- Benzofurans administration & dosage, Benzofurans adverse effects, Combined Modality Therapy adverse effects, Diabetes Mellitus, Type 2 blood, Dipeptidyl-Peptidase IV Inhibitors adverse effects, Dose-Response Relationship, Drug, Double-Blind Method, Drug Resistance, Drug Therapy, Combination adverse effects, Female, Hemoglobins, Abnormal analysis, Humans, Hyperglycemia, Hypoglycemia chemically induced, Hypoglycemia epidemiology, Hypoglycemia prevention & control, Hypoglycemic Agents adverse effects, Hypoglycemic Agents therapeutic use, Incidence, Incretins administration & dosage, Incretins adverse effects, Male, Metformin adverse effects, Middle Aged, Receptors, G-Protein-Coupled metabolism, Sitagliptin Phosphate adverse effects, Sulfones administration & dosage, Sulfones adverse effects, United States epidemiology, Benzofurans therapeutic use, Diabetes Mellitus, Type 2 drug therapy, Dipeptidyl-Peptidase IV Inhibitors therapeutic use, Incretins therapeutic use, Metformin therapeutic use, Receptors, G-Protein-Coupled agonists, Sitagliptin Phosphate therapeutic use, Sulfones therapeutic use
- Abstract
Aims: To evaluate the efficacy and safety of fasiglifam, an orally active G-protein-coupled receptor 40 agonist, in combination with the dipeptidyl peptidase-4 inhibitor sitagliptin, in patients with type 2 diabetes inadequately controlled with diet/exercise (± metformin)., Materials and Methods: In this randomized, double-blind, phase II study, 368 patients received once-daily placebo, sitagliptin 100 mg, fasiglifam 25 or 50 mg, or the combination of sitagliptin 100 mg plus fasiglifam 25 or 50 mg. The primary endpoint was change from baseline glycated haemoglobin (HbA1c) at 12 weeks; a key secondary endpoint was change in fasting plasma glucose (FPG)., Results: The fasiglifam 25 and 50 mg combination regimens produced significantly greater HbA1c reductions than sitagliptin (treatment differences of -0.45% and -0.61%; P < .01, respectively) or respective doses of fasiglifam monotherapy (-0.43% and -0.48%; P < .01) and significantly greater FPG reductions than sitagliptin (-1.1 mmol/L for both combination regimens; P < .01). Improved glycaemic control occurred by week 1 for FPG and week 4 for HbA1c in all groups. Hypoglycaemia rates were low (≤3.3%) and similar across treatments. Liver enzymes >3 × upper limit of normal occurred in four patients (fasiglifam 25 mg, n = 1; fasiglifam 50 mg, n = 2; 1 fasiglifam/sitagliptin 50/100 mg, n = 1)., Conclusions: Combination of fasiglifam and sitagliptin provided significant additional effects on glycaemic control, with hypoglycaemia rates similar to placebo with or without metformin. This study provides supportive clinical evidence for the complementary mechanism of actions of this GPR40 agonist and DPP-4 inhibitor., (© 2017 John Wiley & Sons Ltd.)
- Published
- 2017
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12. Shift from surrogate end point to outcome trials: implications for cardiovascular safety assessment in development programs for antidiabetic drugs.
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Marcinak JF, Viswanathan P, Arora V, Roebel LE, Strack TR, and Leifke E
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- Biomarkers analysis, Clinical Trials, Phase III as Topic methods, Double-Blind Method, Follow-Up Studies, Hospitalization, Humans, Hypoglycemic Agents therapeutic use, Outcome Assessment, Health Care, Prospective Studies, Randomized Controlled Trials as Topic methods, Risk Factors, Cardiovascular Diseases chemically induced, Diabetes Mellitus, Type 2 drug therapy, Endpoint Determination methods, Hypoglycemic Agents adverse effects
- Abstract
We assessed the effect of extending the range of cardiovascular (CV) end points to include hospitalization for unstable angina and hospitalization for coronary revascularization (Extended Major Adverse Cardiac Event criteria (MACE)) in addition to the standard ones, namely, CV-related death, nonfatal stroke, and nonfatal myocardial infarction (Core MACE). The trials selected for the analysis had a duration/follow-up period of ≥1 year and involved more than 1,000 subjects. Annual event rates (AERs) for Core MACE in patients with type 2 diabetes were estimated, and the duration of an event-driven CV outcome trial necessary to exclude ≥80% risk increase was modeled. All the studies revealed hazard ratios ≤1.0 for Core MACE end points whereas in 21% of the studies, the hazard ratio for hospitalization for unstable angina or coronary revascularization (Extended MACE) was >1 and was therefore discordant with Core MACE. The AERs for Core MACE ranged from 0.5% (recent clinical programs) to 6% (epidemiological studies); these low rates observed in recent programs would have the effect of increasing the duration required for a CV outcome trial. The addition of Extended MACE end points to the primary composite outcome in antidiabetic clinical trials is unlikely to obscure CV-related risk and may improve the feasibility of CV outcome trials.
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- 2012
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13. Immunogenicity, safety, and predictors of response after a pneumococcal conjugate and pneumococcal polysaccharide vaccine series in human immunodeficiency virus-infected children receiving highly active antiretroviral therapy.
- Author
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Abzug MJ, Pelton SI, Song LY, Fenton T, Levin MJ, Nachman SA, Borkowsky W, Rosenblatt HM, Marcinak JF, Dieudonne A, Abrams EJ, and Pathak I
- Subjects
- Adolescent, Antibodies, Bacterial blood, CD4 Lymphocyte Count, Child, Child, Preschool, Enzyme-Linked Immunosorbent Assay, Female, HIV Infections drug therapy, Heptavalent Pneumococcal Conjugate Vaccine, Humans, Male, Meningococcal Vaccines administration & dosage, Pneumococcal Vaccines administration & dosage, RNA, Viral blood, Statistics as Topic, Streptococcus pneumoniae immunology, Antiretroviral Therapy, Highly Active, HIV Infections complications, Meningococcal Vaccines adverse effects, Meningococcal Vaccines immunology, Pneumococcal Infections prevention & control, Pneumococcal Vaccines adverse effects, Pneumococcal Vaccines immunology
- Abstract
Background: The immunogenicity and safety of 2 doses of pneumococcal conjugate vaccine (PCV) and 1 dose of pneumococcal polysaccharide vaccine (PPV) were evaluated in human immunodeficiency virus (HIV)-infected children receiving highly active antiretroviral therapy (HAART)., Methods: Children 2 to <19 years, receiving stable HAART for > or =3-6 months, with HIV RNA PCR <30,000-60,000 copies/mL, received 2 doses of PCV and 1 dose of PPV at sequential 8-week intervals. Antibodies to pneumococcal serotypes (STs) 1 (PPV only) and 6B, 14, 19F, and 23F (PCV and PPV) were measured by ELISA., Results: Two hundred sixty-three subjects were enrolled, of whom 225 met criteria for inclusion in the primary dataset. Antibody concentrations were low at entry, despite previous PPV in 75%. After vaccination, 76%-96% had concentrations > or =0.5 microg/mL and 62-88% > or =1.0 microg/mL to the 5 STs (geometric mean concentrations [GMCs] = 1.44-4.25 microg/mL). Incremental gains in antibody concentration occurred with each vaccine dose. Predictors of response included higher antibody concentration at entry, higher immune stratum (based on nadir CD4% before HAART and CD4% at screening), lower entry viral RNA, longer duration of the entry HAART regimen, and age <7 years. Response was more consistently related to screening CD4% than nadir CD4%. Seven percent had vaccine-related grade 3 events, most of which were local reactions., Conclusions: Two PCVs and 1 PPV were immunogenic and safe in HIV-infected children 2 to <19 years who were receiving HAART. Responses were suggestive of functional immune reconstitution. Immunologic status based on nadir and, especially, current CD4% and control of HIV viremia were independent determinants of response.
- Published
- 2006
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14. Epidemiology and treatment of community-associated methicillin-resistant Staphylococcus aureus in children.
- Author
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Marcinak JF and Frank AL
- Subjects
- Child, Child, Preschool, Community-Acquired Infections microbiology, Humans, Microbial Sensitivity Tests, Soft Tissue Infections drug therapy, Soft Tissue Infections epidemiology, Soft Tissue Infections microbiology, Staphylococcal Infections microbiology, Staphylococcal Skin Infections drug therapy, Staphylococcal Skin Infections epidemiology, Staphylococcal Skin Infections microbiology, Staphylococcus aureus classification, Staphylococcus aureus genetics, Staphylococcus aureus pathogenicity, Anti-Bacterial Agents therapeutic use, Community-Acquired Infections drug therapy, Community-Acquired Infections epidemiology, Methicillin Resistance, Staphylococcal Infections drug therapy, Staphylococcal Infections epidemiology, Staphylococcus aureus drug effects
- Abstract
Similar to the epidemiology of methicillin-sensitive Staphylococcus aureus, community-associated methicillin-resistant S. aureus infections occur in children in different regions of the USA and throughout the world. Although minor skin and soft-tissue infections predominate, life-threatening invasive disease and death can result. The novel genetic elements, staphylococcal cassette chromosome mec IV and V, explain the narrow antibiotic resistance pattern, and suggest the mechanism of spread among staphylococci. Panton-Valentine leukocidin apparently plays a role in its pathogenesis. Clindamycin therapy is often effective for treatment, but inducible resistance can develop if the isolate exhibits macrolide resistance due to the erm mechanism. Other drugs displaying in vitro activity against community-associated methicillin-resistant S. aureus include trimethoprim-sulfamethoxazole, tetracyclines, quinolones, linezolid and vancomycin. While experience in pediatric patients is limited, daptomycin, ketolides, glycylcyclines, newer glycopeptides and beta-lactamase-stable cephalosporins may be useful in the future. Further research could include well-designed studies of mechanisms of virulence, continued surveillance of changes in pathogenicity and susceptibility, as well as treatment effectiveness.
- Published
- 2006
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15. Cellulitis.
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Dominguez SR, Marcinak JF, and Daum RS
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- Clindamycin therapeutic use, Community-Acquired Infections drug therapy, Humans, Anti-Bacterial Agents therapeutic use, Cellulitis drug therapy, Methicillin Resistance, Staphylococcal Infections drug therapy, Staphylococcus aureus isolation & purification
- Published
- 2004
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16. Treatment of community-acquired methicillin-resistant Staphylococcus aureus in children.
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Marcinak JF and Frank AL
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- Aged, Aged, 80 and over, Animals, Anti-Bacterial Agents classification, Anti-Bacterial Agents therapeutic use, Child, Community-Acquired Infections epidemiology, Drug Resistance, Microbial, Female, Humans, Infant, Male, Risk Factors, Staphylococcal Infections epidemiology, Staphylococcus aureus genetics, Staphylococcus aureus pathogenicity, Community-Acquired Infections drug therapy, Methicillin Resistance, Staphylococcal Infections drug therapy, Staphylococcus aureus drug effects
- Abstract
Purpose of Review: The concept of methicillin-resistant Staphylococcus aureus (MRSA) associated with broad resistance, nosocomial acquisition, and known risk factors has recently been expanded. A new type of MRSA that is resistant to fewer antibiotics has emerged in pediatric practice since the mid-1990s. These isolates are community acquired and have been reported from diverse geographic regions. Awareness of these organisms is important for appropriate treatment of S. aureus infections in children., Recent Findings: Community-acquired MRSA (CA-MRSA) isolates are similar in many respects to community-acquired methicillin-susceptible S. aureus (CA-MSSA). There are usually no differences in risk factors between children with CA-MRSA infections and those with CA-MSSA infections or their household contacts. In one study, however, multivariate analysis showed that age greater than 1 year and health care contact in the preceding month were significant risk factors for CA-MRSA. Skin and soft tissue infections are the most common manifestations, although serious invasive infections and death may occur. Pneumonia has been reported more often in children with CA-MRSA than in those with CA-MSSA. Clindamycin is an effective therapy for CA-MRSA, but there is a risk for development of clindamycin resistance during treatment of a CA-MRSA that is clindamycin susceptible and inducibly erythromycin resistant. Trimethoprim-sulfamethoxazole is likely to be effective, and linezolid is a new option for treatment., Summary: The appearance of CA-MRSA has important implications for therapy of infections caused by S. aureus in children. Three specific issues are the development of resistance during clindamycin therapy, insufficient data on the use of trimethoprim-sulfamethoxazole in serious CA-MRSA infections, and the appropriate role for newer antibiotics such as linezolid.
- Published
- 2003
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17. Clindamycin treatment of methicillin-resistant Staphylococcus aureus infections in children.
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Frank AL, Marcinak JF, Mangat PD, Tjhio JT, Kelkar S, Schreckenberger PC, and Quinn JP
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- Abscess microbiology, Abscess therapy, Child, Community-Acquired Infections epidemiology, Drug Resistance, Microbial, Electrophoresis, Polyacrylamide Gel, Humans, Infant, Microbial Sensitivity Tests, Staphylococcal Infections epidemiology, Anti-Bacterial Agents therapeutic use, Clindamycin therapeutic use, Methicillin Resistance, Staphylococcal Infections drug therapy, Staphylococcus aureus drug effects
- Abstract
Background: Methicillin-resistant Staphylococcus aureus (MRSA) with a narrower antibiotic resistance pattern have emerged. There is a risk for the appearance of resistance during clindamycin therapy of erythromycin-resistant MRSA infections because of the linked resistance mechanisms., Methods: We analyzed clindamycin-susceptible MRSA organisms from children (1987 to 2000) along with clinical data. Antibiotic susceptibilities of organisms were tested, pulsed field gel electrophoresis (PFGE) was done and the linked resistance mechanism was detected by the D test., Results: An average of 11 clindamycin-susceptible MRSA per year were obtained from children since 1993. Of 88 isolates 33 (38%) were erythromycin-resistant. The latter were less often community-acquired (45% vs. 69%), more often from infants <1 month of age (24% vs. 4%) and less likely to be in the community acquisition-associated PFGE Group 1 (62% vs. 87%) than those that were susceptible. The D test was positive in 31 of 33 erythromycin-resistant isolates. A 9-month-old boy with pneumonia/empyema caused by a clindamycin-susceptible, erythromycin-resistant, D test-positive MRSA developed a PFGE-identical clindamycin-resistant isolate and clinical relapse during clindamycin treatment. In contrast a 12-year-old girl with abscesses caused by a similar MRSA developed another abscess after clindamycin therapy, but the organism was unchanged in susceptibility., Conclusions: Erythromycin resistance was present in 38% of clindamycin-susceptible MRSA in children, and clindamycin resistance was detected during treatment in one child. Clindamycin remains a treatment option if the clinician is notified of the risk by the microbiology laboratory and the clinical situation is suitable.
- Published
- 2002
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18. Chronic vulvovaginitis caused by antibiotic-resistant Shigella flexneri in a prepubertal child.
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Baiulescu M, Hannon PR, Marcinak JF, Janda WM, and Schreckenberger PC
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- Child, Chronic Disease, Drug Resistance, Female, Humans, Shigella flexneri isolation & purification, Vulvovaginitis drug therapy, Anti-Infective Agents therapeutic use, Ciprofloxacin therapeutic use, Dysentery, Bacillary complications, Shigella flexneri pathogenicity, Vulvovaginitis microbiology
- Abstract
A 7-year 8-month-old girl was diagnosed with a prolonged course of vulvovaginitis caused by Shigella flexneri. The child was symptomatic with intermittent vaginal bleeding, dysuria and foul smelling vaginal discharge for a 3-year period. Initial attempts to resolve the infection with successive courses of antibiotic therapy using ampicillin, trimethoprim-sulfamethoxazole, cefixime and amoxicillin/clavulanic acid failed. The child's infection was finally resolved by a 14-day course of ciprofloxacin.
- Published
- 2002
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19. Clonal features of community-acquired methicillin-resistant Staphylococcus aureus in children.
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Abi-Hanna P, Frank AL, Quinn JP, Kelkar S, Schreckenberger PC, Hayden MK, and Marcinak JF
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- Child, Community-Acquired Infections epidemiology, Community-Acquired Infections microbiology, Electrophoresis, Gel, Pulsed-Field, Humans, Microbial Sensitivity Tests, Staphylococcal Infections epidemiology, Staphylococcus aureus classification, Anti-Bacterial Agents pharmacology, Methicillin Resistance, Staphylococcal Infections microbiology, Staphylococcus aureus drug effects, Staphylococcus aureus genetics
- Published
- 2000
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20. Community-acquired and clindamycin-susceptible methicillin-resistant Staphylococcus aureus in children.
- Author
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Frank AL, Marcinak JF, Mangat PD, and Schreckenberger PC
- Subjects
- Abscess microbiology, Adolescent, Anti-Bacterial Agents therapeutic use, Child, Child, Preschool, Clindamycin therapeutic use, Female, Humans, Incidence, Infant, Infant, Newborn, Male, Retrospective Studies, Staphylococcal Infections epidemiology, Staphylococcus aureus drug effects, Wounds and Injuries complications, Anti-Bacterial Agents pharmacology, Clindamycin pharmacology, Community-Acquired Infections microbiology, Methicillin Resistance, Staphylococcal Infections drug therapy, Staphylococcus aureus pathogenicity
- Abstract
Background: Recognition of children with community-acquired (CA) infections caused by clindamycin-susceptible, methicillin-resistant Staphylococcus aureus (MRSA) prompted a retrospective study in two Chicago hospitals conducted from 1987 through 1997., Methods: Laboratory records of MRSA isolates, antibiotic susceptibilities and information from patient medical records were reviewed., Results: One hundred eleven MRSA isolates from 103 children were studied with 51 isolates CA and 77 susceptible to clindamycin. The CA infections were less frequently associated with prior surgery (P = 0.0039) or a foreign body (P = 0.0001), and clindamycin-susceptible MRSA infections were less frequently associated with a foreign body (P = 0.001) compared with nosocomially acquired or clindamycin-resistant MRSA infections. Clindamycin-susceptible MRSA sources were mostly skin, wound or abscess (69%). Soft tissue diagnoses predominated (70%), but 16% were serious invasive infections. Ninety percent of clindamycin-susceptible MRSA were susceptible to erythromycin and/or trimethoprim-sulfamethoxazole. Antibiotic undertreatment (45%) or overtreatment (17%) of children with the clindamycin-susceptible MRSA occurred, but clindamycin appeared to be effective when used., Conclusion: The impact of these organisms could be substantial if they become more frequent or widespread. S. aureus is a potential pathogen in large numbers of pediatric patients; microbiologic evaluation and both presumptive and definitive treatment of all these children may need to be changed.
- Published
- 1999
- Full Text
- View/download PDF
21. Increase in community-acquired methicillin-resistant Staphylococcus aureus in children.
- Author
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Frank AL, Marcinak JF, Mangat PD, and Schreckenberger PC
- Subjects
- Child, Humans, Staphylococcus aureus drug effects, Time Factors, Community-Acquired Infections microbiology, Methicillin Resistance, Staphylococcus aureus isolation & purification
- Published
- 1999
- Full Text
- View/download PDF
22. Sibling abuse: another component of domestic violence.
- Author
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Johnstone HA and Marcinak JF
- Subjects
- Adolescent, Female, Humans, Nursing Assessment, Domestic Violence, Nursing Process, Sibling Relations
- Abstract
As the issue of domestic violence is explored, components of the problem emerge. Sibling abuse as one component of domestic violence is described in this case study. The incidence, risk factors, and nursing care for sibling abuse are discussed. Nursing care for sibling abuse occurs in both the hospital and the community setting. The majority of care must occur in the community health setting because of shortened hospital stays. A review of the literature highlights a lack of research despite an indication of the potential magnitude of the problem. Further research in this area of domestic violence is needed.
- Published
- 1997
- Full Text
- View/download PDF
23. Evaluation of vision screening practices of Illinois pediatricians.
- Author
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Marcinak JF and Yount SC
- Subjects
- Child, Child, Preschool, Evaluation Studies as Topic, Humans, Illinois, Infant, Surveys and Questionnaires, Pediatrics standards, Practice Patterns, Physicians' standards, Vision Screening statistics & numerical data
- Abstract
A survey of vision screening practices of American Academy of Pediatrics physicians in Illinois is described. The response rate was 42%. Sixty percent of physicians tested visual acuity of children 5 years and older, and half of this group tested children 2 to 4 years old. The most common reasons for not testing visual acuity were inadequate time (42%), children too young (18%), or screening done at school (18%). The majority (88%) refer to an ophthalmologist after a single vision screening failure, while about half perform the cover-uncover test on infants and children. The results suggest many Illinois pediatricians do not perform vision screening of preschool children, though screening does occur at other sites.
- Published
- 1995
- Full Text
- View/download PDF
24. Evaluation of universal hepatitis B immunization practices of Illinois pediatricians.
- Author
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Kraus DM, Campbell MM, and Marcinak JF
- Subjects
- Adolescent, Attitude of Health Personnel, Child, Child, Preschool, Data Collection, Female, Guidelines as Topic, Humans, Illinois, Infant, Male, Hepatitis B prevention & control, Hepatitis B Vaccines, Immunization Programs standards, Pediatrics statistics & numerical data, Practice Patterns, Physicians' statistics & numerical data
- Abstract
Objective: To characterize universal hepatitis B immunization practices of pediatricians who routinely provide childhood immunizations in Illinois., Design: Survey of 522 randomly chosen Illinois pediatricians. Student's t test, chi 2 analysis, and multivariate logistic regression were used to identify relationships between physician demographics and outcomes of interest., Main Outcome Measures: Physician agreement with the new Centers for Disease Control and Prevention Immunization Practices Advisory Committee and the American Academy of Pediatrics universal infant hepatitis B immunization guidelines, incorporation of the recommendations, routine hepatitis B immunization of older children (aged 6 months to 11 years), and routine hepatitis B immunization of adolescents., Results: The survey response rate was 71.5%. Of those pediatricians routinely providing immunizations (N = 323), 72.8% agreed with and 90.1% have incorporated universal hepatitis B immunization; 36.5% and 53.0% routinely immunized older children and adolescents, respectively. Pediatricians practicing in medium-sized practices were half as likely to agree with the recommendations (odds ratio [OR], 0.51; 95% confidence interval [CI], 0.31 to 0.84). Cost and a belief that universal immunization of infants is not medically necessary were the two most commonly listed reasons for not incorporating the new guidelines. Percent reimbursement from public aid was negatively related to the routine immunization of older children (OR, 0.34; 95% CI, 0.12 to 0.95). Both percent reimbursement from self-pay (OR, 5.62; 95% CI, 2.25 to 14.05) and a rural location (OR, 0.16; 95% CI, 0.04 to 0.56) were related to routine hepatitis B immunization of adolescents. Gender and number of years in practice were not associated with physician response., Conclusions: The majority of Illinois pediatricians who routinely provide pediatric immunizations have incorporated the new universal hepatitis B immunization guidelines into their practices. Continued efforts to address financial barriers and to educate physicians may hasten the time when the transmission of the hepatitis B virus will no longer occur.
- Published
- 1994
- Full Text
- View/download PDF
25. Comparison of the safety and immunogenicity of acellular (BIKEN) and whole-cell pertussis vaccines in 15- to 20-month-old children.
- Author
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Marcinak JF, Ward M, Frank AL, Boyer KM, Froeschle JE, and Hosbach PH 4th
- Subjects
- Diphtheria-Tetanus-Pertussis Vaccine adverse effects, Diphtheria-Tetanus-Pertussis Vaccine immunology, Double-Blind Method, Drug Hypersensitivity etiology, Enzyme-Linked Immunosorbent Assay, Female, Humans, Immunoglobulin A immunology, Immunoglobulin G immunology, Immunoglobulin M immunology, Incidence, Infant, Male, Pertussis Vaccine adverse effects, Pertussis Vaccine immunology, United States epidemiology, Antibody Formation, Diphtheria-Tetanus-Pertussis Vaccine therapeutic use, Drug Hypersensitivity epidemiology, Pertussis Vaccine therapeutic use
- Abstract
Objective: To compare the immunogenicity and reactogenicity of a two-component acellular pertussis vaccine (BIKEN) with whole-cell diphtheria and tetanus toxoids and pertussis vaccine (WC-DTP) when administered to children aged 15 to 20 months., Design: A randomized, double-blind study., Setting: Children in this study were from 12 general pediatric practices (11 were private and one was university-affiliated) and one inner-city university pediatric clinic., Participants: Two hundred forty-six children aged 15 to 20 months who had received a three-dose primary series of standard WC-DTP vaccine during infancy., Selection Procedures: Children were randomly assigned to receive either WC-DTP or one of three lots of acellular diphtheria and tetanus toxoids and pertussis vaccine (DT-aP) in a 1:3 ratio at the 11 private practices and in a 1:1 ratio at the university-affiliated practice and inner-city university pediatric clinic., Interventions: The DT-aP vaccines contained 23.4 micrograms each of pertussis toxin and filamentous hemagglutinin per 0.5 mL and the same concentrations of diphtheria and tetanus toxoids as WC-DTP. Serum samples were obtained on the day of immunization and 4 to 6 weeks later. Adverse reactions at 6, 24, 48, and 72 hours were recorded by parents who were contacted by telephone at 24 and 72 hours and 14 days after immunization., Measurements/main Results: An indirect enzyme-linked immunosorbent assay method was used to determine IgG antibody response to pertussis toxin and filamentous hemagglutinin and IgG, IgA, and IgM to tetanus toxoids; a Chinese hamster ovary cell assay was used to measure functional antibodies to pertussis toxin; serum neutralization on VERO cells assayed diphtheria anti-toxin. Recipients of the DT-aP vaccine had fewer local reactions in the first 6 to 48 hours and fewer systemic reactions at 24 hours than did recipients of the WC-DTP vaccine. Acetaminophen was administered to 31% of DT-aP recipients compared with 63% of WC-DTP recipients. Infants given DT-aP had higher geometric mean antibody titer levels against pertussis antigens after vaccination., Conclusion: The BIKEN DT-aP vaccine used in this study is less reactogenic and more immunogenic for selected pertussis antigens than the WC-DTP vaccine in children aged 15 to 20 months.
- Published
- 1993
- Full Text
- View/download PDF
26. Use of zinc protoporphyrin measured by the Protofluor-Z hematofluorometer in screening children for elevated blood lead levels.
- Author
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Rolfe PB, Marcinak JF, Nice AJ, and Williams RH
- Subjects
- Chicago epidemiology, Child, Child, Preschool, Evaluation Studies as Topic, False Positive Reactions, Fluorometry methods, Hemoglobins analysis, Hospitals, University, Humans, Infant, Lead blood, Lead Poisoning epidemiology, Mass Screening methods, Outpatient Clinics, Hospital, Prevalence, Prognosis, Sensitivity and Specificity, Seroepidemiologic Studies, Fluorometry standards, Lead Poisoning blood, Mass Screening standards, Protoporphyrins blood
- Abstract
Objective: To determine the usefulness of zinc protoporphyrin, as measured by the Helena Protofluor-Z hematofluorometer, for detecting elevated lead levels., Design: Observational, descriptive review of laboratory records from a university toxicology laboratory., Setting: Inner-city university pediatric clinic and two affiliated community clinics in Chicago, Ill., Patients: Seven hundred seventy-five children younger than 7 years with paired lead-zinc protoporphyrin results., Measurements/results: Fifty-six percent had lead levels of at least 0.48 mumol/L and 8% had lead levels of at least 1.21 mumol/L. The sensitivity, positive predictive value, and negative predictive value of a zinc protoporphyrin level of 70 mumol/mol of hemoglobin for detecting a lead level of 0.48 mumol/L were 42%, 66%, and 50%, respectively, and for a lead level of 1.21 mumol/L were 74%, 18%, and 97%, respectively. Receiver operating characteristic curves demonstrated that for detecting lead levels of 0.48 mumol/L with zinc protoporphyrin, the probability of a true-positive result is close to that of a false-positive one., Conclusion: Zinc protoporphyrin is not a reliable screening test for detecting low blood lead levels.
- Published
- 1993
- Full Text
- View/download PDF
27. Haemophilus influenzae type B vaccine in children with sickle cell disease: antibody persistence after vaccination at age one and one-half to six years.
- Author
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Marcinak JF, Frank AL, Labotka RL, Rao S, Frisone LR, Yogev R, and McVerry P
- Subjects
- Bacterial Capsules, Child, Follow-Up Studies, Humans, Immunization, Secondary, Infant, Time Factors, Anemia, Sickle Cell complications, Antibodies, Bacterial analysis, Bacterial Vaccines, Diphtheria Toxoid, Haemophilus Infections immunology, Haemophilus Vaccines, Haemophilus influenzae immunology, Hemoglobin SC Disease complications, Polysaccharides, Bacterial
- Published
- 1991
28. Immunogenicity of Haemophilus influenzae type b polysaccharide-diphtheria toxoid conjugate vaccine in 3- to 17-month-old infants with sickle cell diseases.
- Author
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Marcinak JF, Frank AL, Labotka RL, Rao S, Drawhorn L, Dampier C, Frisone LR, Yogev R, and McVerry P
- Subjects
- Antibody Formation, Humans, Infant, Influenza Vaccines, Thalassemia immunology, Anemia, Sickle Cell immunology, Bacterial Vaccines immunology, Diphtheria Toxoid immunology, Haemophilus Vaccines, Haemophilus influenzae immunology
- Published
- 1991
- Full Text
- View/download PDF
29. Haemophilus influenzae type B abscess after diphtheria-tetanus toxoids-pertussis immunization.
- Author
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Niederman LG and Marcinak JF
- Subjects
- Haemophilus influenzae, Humans, Infant, Male, Abscess etiology, Diphtheria-Tetanus-Pertussis Vaccine adverse effects, Haemophilus Infections etiology, Immunization
- Published
- 1990
- Full Text
- View/download PDF
30. Candidiasis in the breastfeeding mother and infant.
- Author
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Johnstone HA and Marcinak JF
- Subjects
- Adult, Breast Diseases drug therapy, Candidiasis, Cutaneous drug therapy, Candidiasis, Oral drug therapy, Clotrimazole therapeutic use, Female, Humans, Infant, Newborn, Male, Nipples microbiology, Breast Feeding, Candidiasis transmission
- Abstract
Candidiasis in a breastfeeding mother and infant is described. The mother's breasts were a continuous source of Candida albicans, resulting in persistent thrush in the infant. The infant and mother were successfully treated with clotrimazole in a gel form. This report emphasizes the importance of treating both the infected mother and infant to prevent reinfection and ensure successful breastfeeding.
- Published
- 1990
- Full Text
- View/download PDF
31. Evaluation of children with fever greater than or equal to 104 degrees F in an emergency department.
- Author
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Marcinak JF
- Subjects
- Bacterial Infections diagnosis, Bacterial Infections epidemiology, Child, Child, Preschool, Fever epidemiology, Humans, Infant, Ohio, Pneumonia complications, Seasons, Sepsis etiology, Virus Diseases diagnosis, Virus Diseases epidemiology, Bacterial Infections complications, Emergencies, Fever etiology, Hospitalization, Virus Diseases complications
- Abstract
Two hundred five children with a temperature greater than or equal to 104 degrees F seen in a pediatric emergency department were studied over a six-month fall-winter period to determine the patterns of illness and hospitalization. Children over five years composed a large group (38%) of patients admitted. The proportions of patients with viral and bacterial illnesses (40 and 45%) were similar, as were hospitalization rates for the two types of illnesses (11 and 14%). The hospitalization rates did not change if pneumonias were considered all bacterial or all viral. Chest x-rays were done in 103 patients, and pneumonia was diagnosed in 26 with 18 (69%) occurring in children older than 24 months. There were 10 adolescents greater than or equal to 12 years, five of whom had Group A streptococcal pharyngitis. Blood cultures were drawn in 85 patients, and bacteremia occurred in 12 patients, all younger than 24 months. This study shows that significant illnesses and a high proportion of hospitalizations occurred in children of all ages, particularly in children older than five years.
- Published
- 1988
- Full Text
- View/download PDF
32. Branhamella catarrhalis and Streptococcus pneumoniae type 9 causing recurrent coalescent mastoiditis.
- Author
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Marcinak JF and Maloney KL
- Subjects
- Female, Humans, Infant, Moraxella catarrhalis pathogenicity, Recurrence, Streptococcus pneumoniae pathogenicity, Virulence, Bacterial Infections microbiology, Mastoiditis microbiology, Pneumococcal Infections microbiology
- Published
- 1987
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