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עמוד בית
Sat, 07.12.24

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August 2011
A. Fattal-Valevski, H. Bassan, J. Bernheim, B. Redianu, Y. Leitner and S. Harel

Background: Epidemiological studies have found that intrauterine growth retardation (IUGR) is closely related to hypertension and is associated with a reduced number of nephrons that may be a predisposing factor for the development of hypertension.

Objectives: To determine whether blood pressure levels of children with a history of IUGR are higher than those of children without IUGR.

Methods: Diastolic, systolic and mean arterial blood pressure levels were measured in 64 children aged 8–12 years old with a history of IUGR (mean birth weight 1780
± 422 g) and compared with 64 age and gender-matched controls who had a normal birth weight (mean 3134 ±  594 g).

Results: Contrary to previous reports, systolic blood pressure values were significantly lower in the IUGR group compared to the controls (91.6
±11.3 vs. 96.6 ±13.9, P = 0.027). There was no difference in diastolic blood pressure values. In the IUGR group, systolic blood pressure correlated significantly with current weight (P < 0.01) and body mass index (P < 0.05), and diastolic blood pressure with weight gain between age 2 and 4 years (P < 0.05). None of the blood pressure values correlated with birth weight.

Conclusions: Children born with IUGR have lower systolic blood pressure levels than matched controls at age 8–12 years. These data indicate that postnatal weight gain in this group has a greater impact on systolic blood pressure than birth weight.
 

February 2003
Y. Nevo, F. Muntoni, C. Sewry, C. Legum, M. Kutai, S. Harel and V. Dubowitz

Background: The prediction that Duchenne muscular dystrophy patients have out-of-frame deletions and Becker muscular dystrophy patients have in-frame deletions of the dystrophin gene holds well in the vast majority of cases. Large in-frame deletions involving the rod domain only have usually been associated with mild (BMD[1]) phenotype.

Objectives: To describe unusual cases with large in-frame deletions of the rod-shaped domain of the dystrophin gene associated with severe (Duchenne) clinical phenotype

Methods: Screening for dystrophin gene deletion was performed on genomic DNA by using multiplex polymerase chain reaction. Needle muscle biopsies from the quadriceps were obtained using a BergstrÖm needle. The biopsies were stained with histologic and histochemical techniques as well as monoclonal antibodies to dystrophin 1, 2 and 3.

Results: In three children with large in-frame deletions of the rod domain (exons 10–44, 13–40 and 3–41), early-onset weakness and a disease course suggested the DMD[2] phenotype.

Conclusions: This observation emphasizes the uncertainty in predicting the Becker phenotype in a young patient based on laboratory evaluation, and that the clinical picture should always be considered.






[1] BMD = Becker muscular dystrophy



[2] DMD = Duchenne muscular dystrophy


November 2001
Aviva Fattal-Valevski, MD, Jacques Bernheim, MD, Yael Leitner, MD, Bela Redianu, RN, Haim Bassan, MD and Shaul Harel, MD

Background: Low birth weight has been shown to be strongly related to hypertension in adult life.

Objective: To determine whether blood pressure is higher in children with intruterine growth retardation than in control subjects.

Methods: Blood pressure was measured in 58 children aged 4-6 years with IUGR and in 58 age-matched controls. The control children, whose birth weight was appropriate for gestational age, were also matched for gestational age.

Results: The children with IUGR had significantly higher mean values of systolic (p<0.05) and diastolic blood pressures (p<0.05) and mean arterial pressure (p<0.05). Significant differences in blood pressure values were found between preterm IUGR (n=21) and preterm controls (p<0.05).

Conclusion: These data indicate that children with IUGR may be at higher risk of hypertension already in childhood.

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