Effect of maternal antibody on immunogenicity of hepatitis A vaccine in infants

OBJECTIVE: To determine the effect of maternal antibody on hepatitis A vaccine immunogenicity in infants.Study design Infants of mothers negative for antibody to hepatitis A virus (anti-HAV; group 1) were administered hepatitis A vaccine at 2, 4, and 6 months of age, and infants of anti-HAV-positive mothers were randomized to receive either hepatitis A vaccine (group 2) or hepatitis B vaccine (group 3) on the same schedule. Group 3 infants subsequently received hepatitis A vaccine at 8 and 10 months of age. RESULTS: At 15 months of age, 100% of infants in group 1, 93% in group 2, and 92% in group 3 had protective levels of antibody. However, there were significant differences in the geometric mean concentration (GMC) of anti-HAV between groups. Group 1 GMC was 231 mIU/mL, compared with 85 mIU/mL for group 2 and 84 mIU/mL for group 3 (P<.001, group 1 vs group 3). CONCLUSIONS: Passively acquired maternal anti-HAV resulted in a significantly lower final antibody response when infants were administered hepatitis A vaccine at 2, 4, and 6 months of age or at 8 and 10 months of age.     

Psychiatric and psychological management considerations associated with nerve damage and neuropathic trigeminal pain

This article reviews current models of neuropathic pain and relates recent research in the neurobiology of pain to improved understanding of psychiatric and psychological aspects and treatment of chronic aspects of pain. Some of the anomalies associated with beliefs about chronic pain are also outlined. In particular, the notion that pain is either verifiable or due to psychiatric disturbance is laid to rest; the onus is on the clinician to understand and treat the patient with sensitivity, rather than on the patient to provide proof of pain.     

Child nutrition in developing countries

Malnutrition permeates all aspects of health, growth, cognition, motor and social development of young children in developing countries. More than 50% of deaths in these children can be attributed to malnutrition, most often in conjunction with serious infection. Irreversible and lifelong sequelae prevent children from reaching their full potential. Child survival initiatives and programs have accomplished much to save the lives of children from common and preventable illnesses, but the quality of the survivors' health needs to be improved, with much more attention paid to nutrition of the preschool and school child. Promotion of nutritional health must become an integral part of primary health services, especially for infants, preschoolers, schoolchildren, and women. Promotion of exclusive breastfeeding and appropriate complementary feeding and weaning are essential inputs. A daunting challenge is to improve diet quality through the raising and consumption of small animals by rural subsistence households to enhance maternal and child nutrition. School feeding from preschool onward must be an integral part of education so children are in a condition to learn. An excellent example of such programs is the WHO initiated Integrated Management of Childhood Illness, which integrates nutrition into the care of both sick and well children. The Early Child Development Program initiated by the World Bank and UNICEF has taken hold in many countries. Nutrition outcomes are closely linked with health and education activities starting in the preconception period through pregnancy, lactation, and childhood. Investment in human capital early in life will optimize the growth and social and economic development of children, families, and communities.     

Parenting stress in first-time mothers of twins and triplets conceived after in vitro fertilization

OBJECTIVE: To examine psychosocial and obstetric outcomes at 1 year postpartum in first-time mothers who conceived after IVF. DESIGN: Prospective cohort study. SETTING: University medical center in the United Kingdom. PATIENT(S): One hundred twenty-nine mothers with a single naturally conceived birth, 95 mothers with a single IVF birth, and 36 mothers with a twin or triplet IVF birth. MAIN OUTCOME MEASURE(S): General Health Questionnaire and Parenting Stress Index. RESULT(S): Twenty-two percent of mothers of multiples had Parenting Stress Index scores indicating severe parenting stress, compared with 5% of mothers of IVF singletons (odds ratio, 5.14 [95% confidence interval (CI), 1.55-16.99]) and 9% of mothers of naturally conceived singletons (odds ratio, 2.76 [95% CI, 1.03-7.4]). Mothers of multiple children conceived by IVF did not have poorer mental health but were less likely to be in paid employment at follow-up than were mothers of singletons conceived by IVF (odds ratio, 0.3 [95% CI, 0.13-0.67]) or naturally (odds ratio, 0.27 [95% CI, 0.12-0.59]). Multiple births were more premature, had lower birth weights, and had more medical complications. They were more likely to have been admitted to special care than were singletons conceived by IVF (odds ratio, 14.6 [95% CI, 5.1-42.0)] or those conceived naturally (odds ratio, 10.59 [95% CI, 3.67-30.57]) CONCLUSION(S): Clinicians should ensure that couples making decisions about embryo transfer have considered the potential psychosocial burden of a multiple birth.     

Folic acid use by women receiving routine gynecologic care

OBJECTIVE: Many health professional groups recommend folic acid supplementation for all women able to become pregnant. In this study, we document folic acid supplement use among a sample of women receiving routine gynecologic care. METHODS: A short questionnaire was administered to 322 women aged 18-45 years who were seeking routine gynecologic care at participating clinics in Little Rock, Arkansas. Questions covered knowledge and use of folic acid supplements, pregnancy intention, and demographic and socioeconomic characteristics. Primary study outcomes were self-reported folic acid awareness, daily or weekly use of folic acid supplements, and intention to begin taking folic acid. Factors affecting study outcomes were examined individually by computing crude odd ratios and adjusted for other covariates using unconditional logistic regression. RESULTS: Although 61.8% of women reported awareness of the association between folic acid and birth defects prevention, only 27.1% of these women, and 22.7% of all study participants, reported daily use of a folic acid supplement. Substantially more women (39.8%) were taking a folic acid supplement at least once per week. Age, race, educational level, folic acid awareness, marital status, pregnancy intent, and other preventive health behaviors were the most important predictors of compliance. CONCLUSION: The results indicate a need for targeted interventions directed toward minority women, young women, and those of lower socioeconomic and educational status. The routine gynecologic visit is an ideal opportunity to counsel women of reproductive age to take folic acid daily. LEVEL OF EVIDENCE: III     

Pharmacodynamics and Pharmacokinetics of Oral Contraceptives Co-administered with Alosetron (Lotronex)

The 5-HT3 receptor antagonist alosetron (Lotronex) is indicated for use in women with severe, chronic, diarrhea-predominant irritable bowel syndrome (IBS) who have failed conventional therapy. Oral contraceptives (OCs) and alosetron are potential co-medications in women of childbearing age. This study assessed the effect of alosetron co-administration on pharmacodynamic markers of contraceptive efficacy, on the pharmacokinetics of estrogen and progesterone OC components, and on the activity of biochemical markers for the risk of thrombosis. This was an open label, nonrandomized two-way crossover study in 18 healthy women stabilized for 3 months on a low-dose OC containing ethinyl estradiol (EE) and levonorgestrel (LN). Alosetron had no effect on serum concentrations of luteinizing hormone (LH) or follicle-stimulating hormone. Ovarian activity grades (assessing follicle size, progesterone, and 17beta-estradiol concentrations) were similar during OC use with and without alosetron. Steady-state (Day 21) AUC24, Cmax, and tmax of both LN and EE were similar during coadministration of alosetron with an OC. Concentrations and activity of biochemical markers of thrombosis risk were not different in the presence of alosetron. These results indicate that alosetron does not alter the pharmacokinetics or pharmacodynamic markers of efficacy for a low-dose combination OC. The results also suggest that thromboembolic risk is not increased when alosetron is co-administered with an OC.