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Biomedical subjects

Joseph A Bocchini

Publications and source records attributed to Joseph A Bocchini.

At least 19 recordsLinked to original sources
PubMed2006

Vaccine risk/benefit communication: effect of an educational package for public health nurses.

The purpose of this study was to determine whether an in-service for public health nurses (PHNs) and accompanying educational materials could improve vaccine risk/benefit communication. The content and timing of vaccine communication were recorded during 246 pre-and 217 postintervention visits in two public health immunization clinics. Pre-/postintervention comparisons showed PHN communication of severe side effects (13% vs. 44%, p < .0001) and their management (29% vs. 60%, p < .0001) increased. There was no significant change in discussion of vaccine benefits (48% vs. 51%) or common side effects (91% vs. 92%),screening for contraindications (71% vs. 77%), or distribution of written information (89% vs. 92%). More parents initiated vaccine questions postintervention (27% vs. 39%,p < .01) and were more satisfied with vaccine-risk communication (8.1 vs. 8.9 on a 10-point scale, p < .01). Average vaccine communication time increased from 16 to 22 seconds (p < .01).

Child, Preschool↗
PubMed2006

Hyperketonemia (ketosis), oxidative stress and type 1 diabetes.

The long-term complications of diabetes are the leading causes of morbidity and mortality in the type 1 diabetic population and remain a major public health issue. Hyperglycemia is one of the major risk factors in the development of vascular complications. A growing body of evidence indicates that hyperglycemia leads to increased oxidative stress and monocyte and endothelial cell dysfunction. In addition to hyperglycemia, type 1 diabetic patients frequently experience ketosis (hyperketonemia). The blood concentration of ketone bodies reaches higher than 25mM in diabetics with severe ketosis. Traditionally, clinical practice has considered hypertketonemia to be present only in type 1 diabetic patients. Newer data indicate that diabetic ketoaciosis or hyperketonemia co-exists with hyperglycemia among older type 2 diabetic patients and in African Americans and other minority groups with type 2 diabetes. This review will focus on the role of hyperketonemia in the etiology of oxidative stress in diabetic patients. The data presented here illustrate that the ketone body acetoacetate (AA) can generate superoxide radicals and cause increases in oxidative stress and cellular dysfunction. The data included in this review demonstrate that blood levels of markers of oxidative stress are elevated in hyperketonemic patients compared with those of normoketonemic diabetic patients. Thus, both in vitro and in vivo research indicate that ketosis can generate oxygen radicals and result in excess cellular oxidative stress in type 1 diabetic patients. Elevated oxidative stress levels in ketotic patients can play a significant role in the development of vascular inflammation and contribute to the increased incidence of vascular disease and complications associated with type 1 diabetes.

Journal Article↗
PubMed2006

Recommendations for effective newborn screening communication: results of focus groups with parents, providers, and experts.

OBJECTIVES: The aims of this study were to determine parent and provider knowledge and awareness of newborn screening; to gather opinions from parents, providers, and newborn screening professionals about the content and timing of newborn screening education; and to use consensus data to formulate recommendations and to develop educational materials for parents and providers. METHODS: We conducted 22 focus groups and 3 individual interviews between October 2003 and May 2004, with English- and Spanish-speaking parents of infants <1 year of age who had experience with initial testing, retesting, or false-positive screenings; health professionals who provide prenatal care or health care for newborns; and state newborn screening program health professionals. RESULTS: Parents and providers had limited knowledge and awareness about newborn screening practices. Parents wanted brief to-the-point information on newborn screening and its benefits, including the possible need for retesting and the importance of returning promptly for retesting if initial results are abnormal. Parents wanted the information orally from the primary care provider. Parents, providers, and newborn screening professionals all thought that an accompanying concise, easy-to-read brochure with contact information would be helpful. All focus group participants thought that parents should receive this information before the birth of the infant, preferably in the third trimester of pregnancy. Providers wanted a brief checklist of information and resources to prepare them to educate parents effectively. CONCLUSIONS: We recommend prenatal and primary care providers be more involved in educating parents about newborn screening. Professional societies and state health officials should work together to encourage parent and provider education. User-friendly patient and provider education materials, such as those we developed, could form the basis for this educational approach.

Adult↗
PubMed2006

Infant hearing screening: stakeholder recommendations for parent-centered communication.

OBJECTIVES: The purpose of this study was to identify what stakeholders considered best practices for parent-provider communication regarding newborn hearing screening and diagnosis. We used consensus data to develop educational materials for parents. METHODS: We conducted 29 focus groups and 23 individual interviews between October 2003 and May 2004. Participants included (1) English- and Spanish-speaking parents of infants <18 months of age who had experience with hospital-based newborn hearing screening; (2) parents of children with hearing loss; (3) primary care providers who provide prenatal care or care for newborns; and (4) audiologists, audiology technicians, and hospital nurses. RESULTS: Communication to parents about hospital-based newborn hearing screening was limited. Most parents first learned about the screening in the hospital, but all stakeholders thought a more opportune time for education was before the birth. For parents of infants who did not pass the newborn hearing screening, stakeholders recommended direct communication about the urgency of diagnostic testing. They also indicated that primary care providers needed current information regarding hearing screening, diagnostic testing, and early intervention. All stakeholders thought that a brief brochure for parents to take home would be helpful for hospital-based screening and, if necessary, subsequent diagnostic testing. Primary care providers requested basic, to-the-point information. CONCLUSIONS: The most opportune time to begin discussion of newborn hearing screening is before the birth. Providers need up-to-date information on current standards of hearing screening, diagnosis, and intervention. User-friendly patient education materials, such as those we developed, could assist providers in educating parents.

Adult↗
PubMed2006

Development and validation of the Rapid Estimate of Adolescent Literacy in Medicine (REALM-Teen): a tool to screen adolescents for below-grade reading in health care settings.

OBJECTIVE: The magnitude and consequences of low literacy in adolescent health and health care are unknown. The purpose of this study was to validate the Rapid Estimate of Adolescent Literacy in Medicine (REALM-Teen), a word-recognition test in English that can be used as a brief literacy-screening tool in health care settings. PATIENTS AND METHODS: A total of 1533 adolescents aged 10 to 19 years attending 1 of 5 middle schools, 3 high schools, 1 pediatric clinic, or 2 summer programs in Louisiana and North Carolina participated in face-to-face interviews. Demographic information was solicited, and participants were administered a battery of reading tests, including the REALM-Teen, Wide Range Achievement Test-Revised (WRAT-3), and Slosson Oral Reading Test-Revised (SORT-R). Internal consistency for the REALM-Teen was determined using Cronbach's alpha, and criterion validity was established through correlations with both the WRAT-R and SORT-R. Using reading below grade level (according to SORT-R scores) as an outcome, instrument accuracy and corresponding cutoff scores were calculated by plotting receiver operating characteristic curves and stratum-specific likelihood ratios. RESULTS: Participants were 50% black and 53% female; 34% were enrolled in middle school and 66% in high school. The average time required to administer the REALM-Teen was 3 minutes. Internal consistency was excellent, as was test-retest reliability. The REALM-Teen is strongly correlated with both the WRAT-R and SORT-R. Five reading level categories were identified: 3rd grade and below, 4th to 5th grade, 6th to 7th grade, 8th to 9th grade, and 10th grade and above. Forty-six percent of participants were reading below grade level according to the SORT-R and 28% had repeated at least 1 grade. CONCLUSION: The REALM-Teen is a brief, reliable instrument for assessing adolescent literacy skills and reading below grade level.

Adolescent↗
PubMed2005

Cerebral lymphoma in an adenosine deaminase-deficient patient with severe combined immunodeficiency receiving polyethylene glycol-conjugated adenosine deaminase.

Polyethylene glycol-conjugated adenosine deaminase (PEG-ADA) provides an alternate therapy to mismatched stem cell transplantation for patients with ADA-deficient severe combined immunodeficiency. Although replacement therapy with PEG-ADA is effective in preventing infections, immune function does not return to normal, and most patients remain lymphopenic. Information is limited regarding the prognosis of patients on long-term ADA-replacement therapy. Here we present a case of a 10-year-old child who was diagnosed with ADA-severe combined immunodeficiency at 4 weeks of age after contracting pneumonia. Treatment with PEG-ADA was begun, the biochemical markers of ADA deficiency normalized, and his clinical progress was very good without significant infections. At 10 years of age, after presenting with headaches and cranial nerve deficits, he was diagnosed with Epstein-Barr virus-positive malignant brain lymphoma. It did not respond to various regimens of aggressive chemotherapy, and the patient expired 5 months later. We speculate that in this patient the immunologic surveillance by T cells may have been defective with respect to elimination of Epstein-Barr virus-infected cells, hence the formation of neoplasm. The possible mechanisms underlying such pathology are reviewed.

Adenosine Deaminase↗
PubMed2005

Novel allele of the endothelial nitric oxide synthase gene polymorphism in Caucasian asthmatics.

The purpose of the present study was to investigate an association of the endothelial nitric oxide synthase (eNOS) gene polymorphism with asthma. eNOS intron4 variable number of tandem repeats (27 bp repeats) genotypes were determined in asthma patients and control subjects using microplate PCR. The Caucasian Asthma patients displayed three alleles while Caucasian controls displayed only two alleles. However, African Americans displayed all three alleles in both asthma patients and controls. African American controls displayed significantly higher a allele, significantly lower b allele, as well as c allele than those in Caucasians. This was the first report to show that there was a novel eNOS genotype present in asthmatic patients but not in control subjects in the Caucasian Community. The novel allele which we termed the c allele, could be a significant risk factor in the etiology of asthma in Caucasians. This novel allele could be involved in higher levels of NO in our Caucasian asthmatics.

Alleles↗
PubMed2005

Levofloxacin pharmacokinetics in children.

Levofloxacin is a broad-spectrum fluoroquinolone antibiotic with activity against many pathogens that cause bacterial infections in children, including penicillin-resistant pneumococci. To provide dosing guidance for children, 3 single-dose, multicenter pharmacokinetic studies were conducted in 85 children in 5 age groups: 6 months to <2 years, 2 to <5 years, 5 to <10 years, 10 to <12 years, and 12 to 16 years. Each child received a single 7-mg/kg dose of levofloxacin (not to exceed 500 mg) intravenously or orally. Plasma and urine samples were collected through 24 hours after dose. Pharmacokinetic parameters were estimated and compared among the 5 age groups and to previously collected adult data. Levofloxacin absorption (as indicated by C(max) and t(max)) and distribution in children are not age dependent and are comparable to those in adults. Levofloxacin elimination (reflected by t1/2 and clearance), however, is age dependent. Children younger than 5 years of age clear levofloxacin nearly twice as fast (intravenous dose, 0.32+/-0.08 L/h/kg; oral dose, 0.28+/-0.05 L/h/kg) as adults and, as a result, have the total systemic exposure (area under the plasma drug concentration-time curve) approximately one half that of adults. The levofloxacin area under the plasma drug concentration-time curve (dose normalized) in children receiving a single dose of the oral liquid formulation is comparable to that in children receiving the intravenous formulation. To provide compatible levofloxacin exposures associated with clinical effectiveness and safety in adults, children > or =5 years need a daily dose of 10 mg/kg, whereas children 6 months to <5 years should receive 10 mg/kg every 12 hours.

Administration, Oral↗
PubMed2005

Thiamin deficiency: a possible major cause of some tumors? (review).

Based solely on clinical clues from a malnourished population, thiamin alone was intentionally and successfully injected to human cases with some tumors or masses. Two cases of submandibular gland cyst and 13 out of 15 cases of Baker's cyst were cured without recurrence for several decades. In a case with pathology-confirmed osteosarcoma, subcutaneous perfusion of thiamin HCl 300 once only reduced its circumference from 30 to 20 cm, equivalent to a reduction of 50-75% in volume, within 2 days. Current concepts on the role of thiamin in carcinogenesis are controversial. Some authors claimed that thiamin supported high rate of tumor cell survival, proliferation and chemotherapy resistance and suggested anti-thiamin therapy for cancer. On the other hand, some investigators have reported evidence of prevention of several varieties of cancers by dietary thiamin. A limited number of animal studies revealed evident relationship between thiamin deficiency and cancer development. Therefore, further study on the mechanism switching thiamin between cancer supporter and suppressor is needed.

Cysts↗
PubMed2004

Childhood immunization refusal: provider and parent perceptions.

BACKGROUND AND OBJECTIVES: Parental concerns may contribute to immunization refusals and low infant immunization rates. Little knowledge is available about how often and why parents refuse immunizations for their children. This study was conducted to estimate, based on reports from health care providers and parents, the frequency of and reasons for immunization refusal. METHODS: In 1998, we conducted 32 focus groups of parents and providers in six cities. We then mailed a survey to a random sample of private practice family physicians and pediatricians and public health nurses who immunize children. The overall survey response rate was 77%, and the final sample size was 544. RESULTS: Focus group findings indicated that parents rarely refused vaccines but occasionally resisted specific vaccines. Parents who were unsure about vaccinating were open to discussions about vaccines with a trusted provider. Most of these parents agreed to immunize after discussing concerns with their provider. In a subsequent survey of providers, respondents estimated that they immunized a mean of 3536 (median 1560) children annually. The reported mean number of refusals per 1000 children age >18 years immunized was 7.2 (median 0.4), with varicella vaccine being the most commonly refused. Means did not vary by region or specialty. Providers indicated that fear of side effects heard about from media/word of mouth was the most commonly expressed reason for parents to refuse vaccines (52%). Religious (28%) or philosophical (26%) reasons or belief that the disease was not harmful (26%) were less common reasons. Providers reported that few parents refused because of anti-government sentiment (8%). CONCLUSIONS: Providers indicate low vaccine refusal rates within offices of traditional primary care providers and in public health clinics. Strategies for efficient provider-patient communication are needed to address parental concerns about vaccines.

Child, Preschool↗
PubMed2003

Elevated blood interleukin-6 levels in hyperketonemic type 1 diabetic patients and secretion by acetoacetate-treated cultured U937 monocytes.

OBJECTIVE: Diabetic patients have elevated blood levels of interleukin-6 (IL-6), which is known to increase inflammation and the development of vascular disease and atherosclerosis. This study examined the hypothesis that ketosis increases the circulating levels of IL-6 in type 1 diabetic patients as well as the secretion of IL-6 in vitro in a cell culture model using U937 monocytes. RESEARCH DESIGN AND METHODS: Fasting blood was obtained from type 1 diabetic patients and healthy siblings. To examine the effect of ketosis, U937 monocytes were cultured with ketone bodies (acetoacetate [AA], beta-hydroxybutyrate [BHB]) in the presence or absence of high glucose levels in the medium at 37 degrees C for 24 h. IL-6 was determined by the sandwich enzyme-linked immunosorbent assay method, and intracellular reactive oxygen species (ROS) generation was detected using dihydroethidium dye. RESULTS: The blood level of IL-6 was higher in hyperketonemic (HK) diabetic patients than in normoketonemic (NK) diabetic patients (P < 0.05) and normal control subjects (P < 0.05). There was a significant correlation between ketosis and IL-6 levels (r = 0.36, P < 0.04, n = 34) in the blood of diabetic patients. Cell culture studies found that exogenous addition of the ketone body AA, but not BHB, increases IL-6 secretion and ROS generation in U937 cells. N-acetylcysteine (NAC) prevented the IL-6 secretion in acetoacetate-treated U937 monocytes. CONCLUSIONS: This study demonstrates that hyperketonemia increases IL-6 levels in the blood of type 1 diabetic patients and that NAC can inhibit IL-6 secretion by U937 monocytic cells cultured in a ketotic medium.

Acetoacetates↗
PubMed2002

Hyperketonemia increases tumor necrosis factor-alpha secretion in cultured U937 monocytes and Type 1 diabetic patients and is apparently mediated by oxidative stress and cAMP deficiency.

An elevated blood level of tumor necrosis factor (TNF)-alpha is a validated marker of vascular inflammation, which can result in the development of vascular disease and atherosclerosis. This study examined the hypothesis that ketosis increases the TNF-alpha secretion, both in a cell culture model using U937 monocytes and in type 1 diabetic patients in vivo. U937 cells were cultured with ketone bodies (acetoacetate [AA] and beta-hydroxybutyrate [BHB]) in the presence or absence of high levels of glucose in medium at 37 degrees C for 24 h. This study demonstrates the following points. First, hyperketonemic diabetic patients have significantly higher levels of TNF-alpha than normoketonemic diabetic patients (P < 0.01) and normal control subjects (P < 0.01). There was a significant correlation (r = 0.36, P < 0.05; n = 34) between ketosis and oxidative stress as well as between oxidative stress and TNF-alpha levels (r = 0.47, P < 0.02; n = 34) in the blood of diabetic patients. Second, ketone body AA treatment increases TNF-alpha secretion, increases oxygen radicals production, and lowers cAMP levels in U937 cells. However, BHB did not have any effect on TNF-alpha secretion or oxygen radicals production in U937 cells. Third, exogenous addition of dibutyryl cAMP, endogenous stimulation of cAMP production by forskolin, and antioxidant N-acetylcysteine (NAC) prevented stimulation of TNF-alpha secretion caused by AA alone or with high glucose. Similarly, NAC prevented the elevation of TNF-alpha secretion and lowering of cAMP levels in H(2)O(2)-treated U937 cells. Fourth, the effect of AA on TNF-alpha secretion was inhibited by specific inhibitors of protein kinase A (H89), p38-mitogen-activated protein kinase (SB203580), and nuclear transcription factor (NF)kappaB (NFkappaB-SN50). This study demonstrates that hyperketonemia increases TNF-alpha secretion in cultured U937 monocytic cells and TNF-alpha levels in the blood of type 1 diabetic patients and is apparently mediated by AA-induced cellular oxidative stress and cAMP deficiency.

3-Hydroxybutyric Acid↗
PubMedDate not supplied

Personal observation of skin disorders in malnutrition.

This is a description of some unknown skin disorders found by a physician inmate in a concentration camp, 1958 to 1962. After prolonged semistarvation and ultraheavy physical labor, skin lesions developed among the inmates including cutaneous pigmentation overlying bony prominence, buccal membrane pigmentation, palmoplantar keratoderma with fissures, palmar crease clefts, nail layering, intra-nail hemorrhage, and so on. These lesions responded dramatically to nutrition therapy, including dietary improvement, yeast administration, or thiamin injection. Thiamin deficiency was confirmed to be one of major etiologic factors, whereas the deficiency of niacin or riboflavin also played a part. In the pediatric case with palmar crease clefts, both thiamin and niacin were dramatically effective. No laboratory data could be provided.

Adolescent↗
PubMedDate not supplied

Childhood vaccine risk/benefit communication among public health clinics: a time-motion study.

United States law requires that immunization providers use Centers for Disease Control Vaccine Information Statements (VISs) and inform parents about vaccine risks and benefits prior to every childhood immunization. A recent national survey found that public health clinics (PHCs) reported high compliance with this law. To further investigate these findings, we conducted an immunization time-motion study in two PHCs in Kansas and Louisiana. Research assistants observed a convenience sample of 246 child immunization visits to record distribution of the VISs and content and time of vaccine communication. Thirty percent of parents read below a ninth grade level, 53% had Medicaid insurance, and 56% were Black. VISs were given with every dose of vaccine administered in 89% of visits. Public health nurses (PHNs) frequently discussed potential vaccine side effects (91%), treatment of side effects (91%), and the vaccine schedule (93%). Contraindications were screened in 71% of visits. Benefits were discussed in 48% of visits and severe risks in 29%. The national Vaccine Injury Compensation Program (VICP) was never discussed. The immunization visits lasted for a mean of 20 min. Vaccine communication of side effects, risks, benefits, screening for contraindications, and the next visit lasted for an average of 16 s for all vaccines. PHC compliance with mandated VIS distribution and practical vaccine communication was high. Room for improvement exists in discussion of benefits, serious risks, and the VICP.

Adult↗
PubMedDate not supplied

Improving vaccine risk/benefit communication with an immunization education package: a pilot study.

INTRODUCTION: The National Childhood Vaccine Injury Act (NCVIA) requires that physicians distribute the appropriate Vaccine Information Statements (VIS) at each immunization visit and discuss the risks/benefits of every vaccine given. In a national study, 31% of pediatricians reported not using the VIS and 56% indicated that time was a barrier to vaccine risk/benefit communication. Parents, however, indicated they want their primary providers to personally tell them about risks/benefits. OBJECTIVE: To test the feasibility of an Immunization Education Package (IEP) intervention to improve compliance with the federal mandate and to improve physician/parent vaccine risk/benefit communication. SETTING: Two multi-physician private pediatric practices in Shreveport, La. DESIGN: A before-after trial with comparison of 130 pre-intervention and 78 post-intervention visits. Research assistants recorded content and duration of immunization discussions during well-baby visits during which immunizations were scheduled. Clinic staffs were masked as to variables recorded. INTERVENTION: The IEP was a multifaceted intervention, involving a practice-based in-service and distribution and discussion of ready-to-use materials including an exam room poster entitled "7 Questions Parents Need To Ask About Baby Shots." RESULTS: Patients were 90% white and 96% privately insured. Pre and post results revealed a significant increase in VIS distribution (33% vs 91%, P <.001) and physician and nurse initiation of verbal teaching about the vaccine (65% vs 100%, 32% vs 72%, respectively; P <.001 for both), and parent initiation of questions (0% vs 32%, P <.001). A significant increase was found in the discussion of 6 of 8 major immunization IEP topics: contraindications, common side effects, treatment of common side effects, severe side effects, management of severe side effects, and schedule of the next vaccination. These vaccine communication improvements were made with a very small (20-s) increase in physician time. In post-intervention focus groups, provider staff endorsed the IEP method. CONCLUSIONS: This IEP was a feasible way to facilitate compliance with the NCVIA. A significant amount of additional information was provided to parents with only a slight increase in time.

Adult↗