Essential fatty acid status in teenage girls with eating disorders and weight loss

Aim: To explore the relationship between essential fatty acids (FA) and weight changes in adolescent girls with eating disorders (ED). Methods: Blood samples were obtained from 220 girls with ED and 39 healthy controls. The girls with ED were 15.3 ± 1.5 years of age and weighed 49.8 ± 8.7 kg (BMI 18.3 ± 2.8 kg/m²) after a weight loss of 6.8 ± 6.4 kg. FA were analysed in plasma phospholipids (PPL) and erythrocyte membranes (ERY). Results: The proportions of saturated and monounsaturated FA were increased during weight loss, while linoleic acid (18:2ω6) was decreased. The proportions of eicosapentanoic acid (EPA) (20:5ω3) and docosahexanoic acid (DHA) (22:6ω3) in PPL and ERY did not differ from controls. The activity of stearoyl‐CoA‐desaturase was increased as evidenced by an increased product/precursor ratio and correlated with the rate of weight loss. The activities of delta‐6‐desaturase and delta‐5‐desaturase did not differ from controls. The rate of weight loss was inversely correlated with delta‐6‐desaturase and directly correlated with delta‐5‐desaturase. Conclusion: The FA profile indicates low‐fat intake, fat mobilization from stores and an increased conversion of essential FA at the delta‐5‐desaturase step during weight loss in adolescent girls with ED. Normal levels of EPA and DHA were maintained.     

A 5‐HT2A/2C receptor agonist, 1‐(2,5‐dimethoxy‐4‐iodophenyl)‐2‐aminopropane,mitigates developmental neurotoxicity of ethanol to serotonergic neurons

Prenatal ethanol exposure causes the reduction of serotonergic (5‐HTergic) neurons in the midbrain raphe nuclei. In the present study, we examined whether an activation of signaling via 5‐HT_2A and 5‐HT_2C receptors during the fetal period is able to prevent the reduction of 5‐HTergic neurons induced by prenatal ethanol exposure. Pregnant Sprague–Dawley rats were given a liquid diet containing 2.5 to 5.0% (w/v) ethanol on gestational days (GDs) 10 to 20 (Et). As a pair‐fed control, other pregnant rats were fed the same liquid diet except that the ethanol was replaced by isocaloric sucrose (Pf). Each Et and Pf group was subdivided into two groups; one of the groups was treated with 1 mg/kg (i.p.) of 1‐(2,5‐dimethoxy‐4‐iodophenyl)‐2‐aminopropane (DOI), an agonist for 5‐HT_2A/2C receptors, during GDs 13 to 19 (Et‐DOI or Pf‐DOI), and another was injected with saline vehicle only (Et‐Sal or Pf‐Sal). Their fetuses were removed by cesarean section on GD 19 or 20, and fetal brains were collected. An immunohistological examination of 5‐HTergic neurons in the fetuses on embryonic day 20 using an antibody against tryptophan hydroxylase revealed that the number of 5‐HTergic neurons in the midbrain raphe nuclei was significantly reduced in the Et‐Sal fetuses compared to that of the Pf‐Sal and Pf‐DOI fetuses, whereas there were no significant differences between Et‐DOI and each Pf control. Thus, we concluded that the reduction of 5‐HTergic neurons that resulted in prenatal ethanol exposure could be alleviated by the enhancement of signaling via 5‐HT_2A/2C receptors during the fetal period.     

Precursors of adrenomedullin, endothelin and atrial natriuretic peptide as diagnostic markers of neonatal infection

Aim: To evaluate the serum levels of three precursors of vasoactive peptide as diagnostic markers for neonatal infections. Methods: Overall, 356 neonates (160 without infection, 114 with mild infections and 82 with severe infections) were enrolled in this study. Their serum levels of mid‐regional pro‐adrenomedullin (MR‐pro‐ADM), C‐terminal pro‐endothelin‐1 (CT‐pro‐ET‐1) and mid‐regional pro‐atrial natriuretic peptide (MR‐pro‐ANP) were measured by immunoassay, and receiver operating curve analysis was performed for each biomarker to evaluate their diagnostic values for neonatal infection. Results: The serum levels of MR‐pro‐ADM (2.079 ± 1.195 nm ), CT‐pro‐ET‐1 (109.4 ± 62.9 pm ) and MR‐pro‐ANP (1221.4 ± 725.0 pm ) in the severe infection group were significantly higher than those in the mild infection group (1.025 ± 0.421 nm , 86.7 ± 51.8 pm , and 687.6 ± 575.7 pm , respectively) and in the non‐infection group (0.853 ± 0.488 nm , 51.3 ± 40.6 pm , and 943.3 ± 847.3 pm , respectively) (p < 0.01–0.001). Their areas under the curve were 0.72, 0.76 and 0.61, respectively. Among them, CT‐pro‐ET‐1 had the highest sensitivity (82.65%), whereas MR‐pro‐ADM had the highest specificity (86.25%). Conclusions: MR‐pro‐ADM, CT‐pro‐ET‐1 and MR‐pro‐ANP may serve as useful laboratory markers to indicate bacterial infection in neonates.     

Optimal birth weight percentile cut‐offs in defining small‐ or large‐for‐gestational‐age

Aims: It remains questionable what birth weight for gestational age percentile cut‐offs should be used in defining clinically important poor or excessive foetal growth. We aimed to evaluate the optimal birth weight percentile cut‐offs for defining small‐ or large‐for‐gestational‐age (SGA or LGA). Methods: In a birth cohort‐based analysis of 17 979 120 non‐malformation singleton live births, U.S. 1995–2001, we assessed the optimal birth weight percentile cut‐offs for defining SGA and LGA. The 25th–75th percentile group served as the reference. Primary outcomes are the risk ratios (RR) of neonatal death and low 5‐min Apgar score (<4) comparing SGA or LGA versus the reference group. More than 2‐fold risk elevations were considered clinically significant. Results: The 15th birth weight cut‐off already identified SGA infants at more than 2‐fold risk of neonatal death at pre‐term, term or post‐term, except for extremely pre‐term births <28 weeks (continuous risk reductions over increasing birth weight percentiles). LGA was associated with a reduced risk of low 5‐min Apgar score at pre‐term, but an elevated risk at term and post‐term. The 97th cut‐off identified LGA infants at 2‐fold risk of low 5‐min Apgar at term. Conclusion: The commonly used 10th and 90th birth weight percentile cut‐offs for defining SGA and LGA respectively seem largely arbitrary. The 15th and 97th percentiles may be the optimal cut‐offs to define SGA and LGA respectively.     

The reliability of weight‐for‐length/height Z scores in children

The World Health Organisation (WHO) recommends weight‐for‐length/height (WFL/H), represented as a Z score for diagnosing acute malnutrition among children aged 0 to 60 months. Under controlled conditions, weight, height and length measurements have high degree of reliability. However, the reliability when combined into a WFL/H Z score, in all settings is unclear. We conducted a systematic review of published studies assessing the reliability of WFL/Hz on PubMed and Google scholar. Studies were included if they presented reliability scores for the derived index of WFL/Hz, for children under 5 years. Meta‐analysis was conducted for a pooled estimate of reliability overall, and for children above and below 24 months old. Twenty six studies on reliability of anthropometry were identified but only three, all community‐based studies, reported reliability scores for WFL/Hz. The overall pooled intra‐class correlation coefficient (ICC) estimate for WFL/Hz among children aged 0 to 60 months was 0.81 (95% CI 0.64 to 0.99). Among children aged less than 24 months the pooled ICC estimate from two studies was 0.72 (95% CI 0.67 to 0.77) while the estimate reported for children above 24 months from one study was 0.97 (95% CI 0.97 to 0.99). Although WFL/Hz is recommended for diagnosis of acute under nutrition among children below 5 years, information on its reliability in all settings is sparse. In community settings, reliability of WFL/Hz is considerably lower than for absolute measures of weight and length/height, especially in younger children. The reliability of WFL/Hz needs further evaluation.     

Maternal HIV seroconversion at delivery without transmission

A case of HIV seroconversion associated with high viral load occurring at or near delivery is described. The management of the case in terms of prevention of mother‐to‐child‐transmission is described and discussed in terms of the published literature and guidelines. From this instructive case a constructive strategy for delivery and immediate post‐natal care is derived.     

Maternal selenium,copper and zinc concentrations in pregnancy associated with small‐for‐gestational‐age infants

Pregnancy during adolescence increases the risk of adverse pregnancy outcome, especially small‐for‐gestational‐age (SGA) birth, which has been linked to micronutrient deficiencies. Smoking has been shown to be related to lower micronutrient concentrations. Different ethnicities have not been examined. We used a subset from a prospective observational study, the About Teenage Eating study consisting of 126 pregnant adolescents (14–18‐year‐olds) between 28 and 32 weeks gestation. Micronutrient status was assessed by inductively coupled mass spectrometry. Smoking was assessed by self‐report and plasma cotinine, and SGA was defined as infants born <10th corrected birthweight centile. The main outcome measures were as follows: (1) maternal plasma selenium, copper and zinc concentrations in adolescent mothers giving birth to SGA vs. appropriate‐for‐gestational‐age (AGA) infants; and (2) comparison of micronutrient concentrations between women of different ethnicities and smoking habits. The plasma selenium {mean ± standard deviation (SD) [95% confidence interval (CI)]} concentration was lower in the SGA [n = 19: 49.4 ± 7.3 (CI: 45.9, 52.9) µg L^?1] compared with the AGA [n = 107: 65.1 ± 12.5 (CI: 62.7, 67.5) µg L^?1; P < 0.0001] group. Smoking mothers had a lower selenium concentration compared with non‐smokers (P = 0.01) and Afro‐Caribbean women had higher selenium concentrations compared with White Europeans (P = 0.02). Neither copper nor zinc concentrations varied between groups. Low plasma selenium concentration in adolescent mothers could contribute to the risk of delivering an SGA infant, possibly through lowering placental antioxidant defence, thus directly affecting fetal growth. Differences in plasma selenium between ethnicities may relate to variation in nutritional intake, requiring further investigation.     

The successful use of alemtuzumab for treatment of steroid‐refractory acute graft‐versus‐host disease in pediatric patients

SR‐aGVHD remains a significant cause of morbidity and mortality in allogeneic HCT recipients. Alemtuzumab has been used with success in adult patients but has not been studied in the pediatric setting. To estimate the effectiveness of alemtuzumab for the treatment of SR‐aGVHD in pediatric patients, we retrospectively reviewed the charts of 19 patients (median age 4 yr, range 0.5–28 years) with grades II (n = 3), III (n = 10), or IV (n = 6) SR‐aGVHD who received alemtuzumab treatment. Patients received a median dose of 0.9 mg/kg alemtuzumab (range 0.3–2 mg/kg) divided over 2–6 days. Eighty‐nine percent of patients received additional courses. A complete response, defined as GVHD of grade 0 at four wk following the first alemtuzumab course, was observed in nine patients (47%). A partial response, defined as an improvement in grade after four wk, was observed in five patients (26%). There was no response in five patients (26%). The overall response rate at four wk was 73%. Infectious complications included bacteremia (47%), presumed or documented fungal infections (21%), adenovirus viremia (52%), EBV viremia (36%), and CMV viremia (36%). We conclude that alemtuzumab is effective for SR‐aGVHD in pediatric patients with a tolerable spectrum of complications.     

Prompt administration of antibiotics is associated with improved outcomes in febrile neutropenia in children with cancer

Background

Time‐to‐antibiotic (TTA) administration is a widely used quality‐of‐care measure for children with cancer and febrile neutropenia (FN). We sought to determine whether TTA is associated with outcomes of FN.

Procedure

A single‐center, retrospective cohort study was conducted of 1,628 FN admissions from 653 patients from 2001 to 2009. Outcome variables included (1) an adverse event (AE) composite of in‐hospital mortality, pediatric intensive care unit (PICU) admission within 24 hours of presentation, and/or fluid resuscitation ≥40 ml/kg within 24 hours of presentation and (2) length of stay (LOS). TTA was measured as a continuous variable and in 60‐minute intervals. Mixed regression models were constructed to evaluate associations of TTA with the outcome variables after adjusting for relevant covariates including cancer diagnosis, degree of myelosuppression, and presence of bacteremia.

Results

The composite AE outcome occurred in 11.1% of admissions including 0.7% in‐hospital mortality, 4.7% PICU admission, and 10.1% fluid resuscitation. In univariate analysis, TTA was associated with the composite AE outcome (Odds Ratio [OR] 1.29, 95% CI 1.02–1.64) but not LOS. In multivariate analysis, after adjustment for relevant covariates, 60‐minute TTA intervals were associated with the composite AE outcome (61–120 minutes vs. ≤60 minutes, OR 1.81, 95% CI 1.01–3.26). Unexpectedly, admission from the emergency department (ED) was also independently associated with the composite AE outcome (ED vs. clinic, OR 3.15, 95% CI 1.95–5.09).

Conclusions

TTA and presentation to the ED are independently associated with poor outcomes of FN. Pediatr Blood Cancer 2013;60:1299–1306. © 2013 Wiley Periodicals, Inc.     

Current human T‐cell lymphotropic virus type 1 mother‐to‐child transmission prevention status in Kagoshima

The aim of this study was to assess the current human T‐cell lymphotropic virus type 1 (HTLV‐I) mother‐to‐child transmission (MTCT) prevention system in Kagoshima Prefecture. We investigated the rate of carrier pregnant women from obstetrics facilities in Kagoshima by mail in 2012 and compared our results with previous study results. We interviewed carrier pregnant women about their choices for infant nutrition, and we interviewed midwives about the follow‐up system. In 2012, 8719 screening tests were performed, covering 58.1% of all pregnant women in Kagoshima; the rate of carrier pregnant women was 1.3%. Of 59 carriers, 39 chose short‐term breast‐feeding. The HTLV‐I carrier rate among pregnant women in Kagoshima has declined. The current HTLV‐I MTCT prevention system in Kagoshima is effective, but not sufficient. To bring the nutrition methods to completion, various types of support are needed. Further studies will elucidate many unsolved problems concerning MTCT.     

Using pediatric liver grafts (≤6 yr) for adult recipients: A considerable option?

In LT, the common policy is to allocate pediatric liver grafts to pediatric recipients. Pediatric organs are also offered to adults if there is no pediatric recipient. However, they are rarely accepted for adult recipients. So far, there is no information available reporting outcome of LT in adult recipients using pediatric livers from donors ≤6 yr. In this study, we included nine adult recipients (seven females and two males) who received grafts from children ≤6 yr from January 2008 to December 2013. We evaluated the graft quality, the GBWR and analyzed the recipients’ perioperative course. Laboratory samples and graft perfusion were analyzed. Nine adults with a median age of 49 yr (range: 25–65) and a median weight of 60 kg (range: 48–64) underwent LT with a pediatric donor graft. Median donor age was five yr (range: 3–6). Median GBWR was 1.02 (range: 0.86–1.45). After a median follow‐up of 3.9 yr (range: 11 months–6.6 yr), patient survival was 100%; graft survival was 89%. One patient needed re‐transplantation on the second postoperative day due to PNF. Eight recipients were discharged from the ICU after 2–9 days with a regular graft function. Doppler scans revealed regular flow patterns at any time. Only if denied for pediatric recipients, the use of pediatric livers from donors ≤6 yr for adult recipients is a considerable option.     

Practitioner review: Self-harm in adolescents

Background: Repeated self‐harm in adolescents is common and associated with elevated psychopathology, risk of suicide, and demand for clinical services. Despite recent advances in the understanding and treatment of self‐harm there have been few systematic reviews of the topic. Aims: The main aim of this article is to review randomised controlled trials (RCTs) reporting efficacy of specific pharmacological, social or psychological therapeutic interventions (TIs) in reducing self‐harm repetition in adolescents presenting with self‐harm. Method: Data sources were identified by searching Medline, PsychINFO, EMBASE, and PubMed from the first available year to December 2010. RCTs comparing specific TIs versus treatment as usual or placebo in adolescents presenting with self‐harm were included. Results: Fourteen RCTs reported efficacy of psychological and social TIs in adolescents presenting with self‐harm. No independently replicated RCTs have been identified reporting efficacy of TIs in self‐harm reduction. Developmental Group Psychotherapy versus treatment as usual was associated with a reduction in repeated self‐harm, however, this was not replicated in subsequent studies. Multisystemic Therapy (MST) versus psychiatric hospitalisation was associated with a reduction of suicidal attempts in a sample of adolescents with a range of psychiatric emergencies. However, analyses focusing only on the smaller subgroup of adolescents presenting with deliberate self‐harm at the initial psychiatric emergency, did not indicate significant benefits of MST versus hospitalisation. Conclusions: Further research is urgently needed to develop TIs for treating self‐harm in adolescents. MST has shown promise but needs to be evaluated in a sample of adolescents with self‐harm; dialectic behavioural therapy and cognitive behavioural therapy for self‐harm require RCTs to evaluate efficacy and effectiveness.     

Epstein-Barr virus related opsoclonus-myoclonus-ataxia does not rule out the presence of occult neuroblastic tumors

Opsoclonus-myoclonus-ataxia (OMA) secondary to Epstein-Barr virus (EBV) infection has only been described in three pediatric patients. Previous reports suggested that evidence for a recent EBV infection in the absence of an occult neoplasm would predict a favorable prognosis for OMA as well as no tumor development. We present the case of a 20-month-old child with OMA associated with a microbiologically documented acute EBV infection and an occult thoracic ganglioneuroblastoma diagnosed 5 months later.     

Do six‐antigen‐matched cadaver donor kidneys provide better graft survival to children compared with one‐haploidentical living‐related donor transplants? A report of the North American Pediatric Renal Transplant Cooperative Study

Since 1991, more than 50% of pediatric transplant recipients have received a living donor (LD) kidney, and approximately equals 85% of these allografts were one-haploidentical parental kidneys. Short-term (1 yr) and long-term (5 yr) graft survival of LD kidneys are 10% and 15% better, respectively, than that of cadaver donor (CD) kidneys. Because of these results, children are frequently not placed on a cadaver waiting list until the possibility of a LD is excluded--a process that may take up to 1 yr. The hypothesis for this study was that the graft outcome of a six-antigen-matched CD kidney is superior to that of a one-haploidentical LD kidney, and that children are at a disadvantage by not being placed on a CD list whilst waiting for a LD. The database of the North American Pediatric Renal Transplant Cooperative Study (NAPRTCS) for 11 yrs (1987-98), was reviewed to identify children who were recipients of a six-antigen-matched CD kidney (primary and repeat transplants), and those who were recipients of a one-haploidentical LD kidney (primary and repeat transplants). Using standard statistical methods, the morbidity, rejection episodes, post-transplant hospitalizations, renal function, long- and short-term graft survival, and half-life of primary recipients were compared in the two groups. Unlike adult patients, only 2.7% (87/3313) of CD recipients in the pediatric age range received a six-antigen-matched kidney, and the annual accrual rate over 11 yrs was never higher than 4%. Comparison of 57 primary six-antigen-CD kidneys (PCD) with 2,472 primary LD (PLD) kidneys revealed that morbidity, rejection rates, and ratios were identical in the two groups. Renal function and subsequent hospitalizations were also identical in the two groups. Five-year graft survival of the PCD group was 90% compared with 80% for the PLD group, and the half-life of the PCD group was 25 +/- 12.9 yrs compared with 19.6 +/- 1.3 yrs. Our data suggest that the six-antigen-matched CD kidney may have less graft loss as a result of chronic rejection and would therefore confer a better long-term outcome. Based on these findings we recommend that all children, whilst waiting for a LD work-up, be listed with the United Network for Organ Sharing (UNOS) registry for a CD kidney.