S. Giryes, E. Leibovitz, Z. Matas, S. Fridman, D. Gavish, B. Shalev, Z. Ziv-Nir, Y. Berlovitz and M. Boaz
Background: Depending on the definition used, malnutrition is prevalent among 20¨C50% of hospitalized patients. Routine nutritional screening is necessary to identify patients with or at increased risk for malnutrition. The Nutrition Risk Screening (NRS 2002) has been recommended as an efficient tool to identify the risk of malnutrition in adult inpatients.
Objectives: To utilize the NRS 2002 to estimate the prevalence of malnutrition among newly hospitalized adult patients, and to identify risk factors for malnutrition.
Methods: During a 5 week period, all adult patients newly admitted to all inpatient departments (except Maternity and Emergency) at Wolfson Medical Center, Holon, were screened using the NRS 2002. An answer of yes recorded for any of the Step 1 questions triggered the Step 2 screen on which an age-adjusted total score ¡Ý 3 indicated high malnutrition risk.
Results: Data were obtained from 504 newly hospitalized adult patients, of whom 159 (31.5%) were identified as high risk for malnutrition. Malnutrition was more prevalent in internal medicine than surgical departments: 38.6% vs. 19.1% (P < 0.001). Body mass index was within the normal range among subjects at high risk for malnutrition: 23.9 ¡À 5.6 kg/m2 but significantly lower than in subjects at low malnutrition risk: 27.9 ¡À 5.3 kg/m2 (P < 0.001). Malnutrition risk did not differ by gender or smoking status, but subjects at high malnutrition risk were significantly older (73.3 ¡À 16.2 vs. 63.4 ¡À 18.4 years, P < 0.001). Total protein, albumin, total cholesterol, low density lipoprotein-cholesterol, hemoglobin and %lymphocytes were all significantly lower, whereas urea, creatinine and %neutrophils were significantly higher in patients at high malnutrition risk.
Conclusions: Use of the NRS 2002 identified a large proportion of newly hospitalized adults as being at high risk for malnutrition. These findings indicate the need to intervene on a system-wide level during hospitalization.
R. Marom, R. Lubetzky, F.B. Mimouni, H. Bassan, L. Ben Sira, I. Berger, S. Dollberg and D. Mandel
Background: Infants with severe intraventricular-periventricular hemorrhage (IVH) have higher absolute nucleated red blood cell counts (aNRBC) at birth (a marker of intrauterine hypoxia) than controls. Periventricular leukomalacia (PVL) is known to be associated with prenatal and postnatal events. Whether PVL is also linked to intrauterine hypoxia is unknown.
Objectives: To test the hypothesis that infants with PVL have higher aNRBC counts at birth than controls.
Methods: We studied 14 very low birth weight infants with PVL and compared them with 14 pair-matched controls without PVL. Head ultrasound scans were performed in all infants on days 3–5 and 21–25 of life. Paired tests, Fisher exact tests and stepwise logistic regression were performed for analysis.
Results: Groups were similar for gestational age (GA), birth weight (BW), prolonged rupture of membranes (PROM), Apgar scores, IVH, and aNRBC counts. PVL correlated significantly with low partial pressure of CO2 (pCO2) and IVH (P < 0.01). In logistic regression, when GA, gender, PROM, antenatal steroid therapy, 1 (or 5) minute Apgar scores, IVH grade, nosocomial sepsis, patent ductus arteriosus, necrotizing enterocolitis (NEC), need for pressors, aNRBC counts and lowest pCO2 were used as independent variables, pCO2 (P = 0.002), IVH grade (P = 0.001), GA (P = 0.038), NEC (P = 0.061) and use of dopamine (P = 0.010) remained in the analysis (total R2 = 68.2%).
Conclusions: In contrast to severe IVH, aNRBC counts do not predict the development of PVL.
E. Baharav and A. Weinberger
Background: The human lymphocyte antigen (HLA) molecule B*5101 is a functioning receptor of the immune system and is generally accepted as a genetic marker for Behçet disease (BD), a multi-organ, chronic inflammatory disorder. The role of the HLA-B*5101 in the pathogenesis of BD is elusive. The assumption that HLA-B*5101 has an active role in BD is suggestive, but no antigen has yet been identified.
Objectives: To evaluate the potential binding capacity of various antigens to the HLA-B*5101 molecule.
Methods: Using bioinformatics programs, we studied the binding capacity of HLA-B*5101 and its corresponding rat molecule RT.A1 to the following antigens: heat shock protein-60 (HSP-60), major histocompatibility complex class I chain-related gene A (MICA), retinal S-antigen (S-Ag), HLA-B-27 molecule and its peptide (PD) and tropomyosin (TPM), all of which serve as antigens in animal models corresponding to BD.
Results: In each protein including the B*5101 molecule itself, the computerized programs revealed several short sequences with potential high binding capacity to HLA-B*5101 with the exception of B-27PD. The rat MHC RT1.Al had no binding capacity to S-Ag.
Conclusions: The evaluated proteins have the potential to bind to and to serve as potential antigens to the HLA-B*5101 and the rat MHC RT1.Al molecules. The pathogenicity of these suggested short peptides should be evaluated in animal models of BD.
R. Nevzorov, T. Ben-Gal, B. Strasberg and M. Haim
G. Yahalom, A. Yagoda, C. Hoffmann, O. Dollberg and N. Gadoth