Info. you might find interesting...A newborn infant of a diabetic mother may develop one, or more, of the following:
� hypoglycemia
Hypoglycemia refers to low blood glucose in the baby immediately after delivery. This problem occurs if the mother's blood glucose levels have been consistently high causing the fetus to have a high level of insulin in its circulation.
After delivery, the baby continues to have a high insulin level, but it no longer has the high level of glucose from its mother, resulting in the newborn's blood glucose level becoming very low.
The baby's blood glucose level is checked after birth, and if the level is too low, it may be necessary to give the baby glucose intravenously.
� macrosomia
Macrosomia refers to a baby that is considerably larger than normal. All of the nutrients the fetus receives come directly from the mother's blood. If the maternal blood has too much glucose, the pancreas of the fetus senses the high glucose levels and produces more insulin in an attempt to use this glucose. The fetus converts the extra glucose to fat.
� ***Even when the mother has gestational diabetes, the fetus is able to produce all the insulin it needs.***
� The combination of high blood glucose levels from the mother and high insulin levels in the fetus results in large deposits of fat which causes the fetus to grow excessively large.
� birth injury
Birth injury may occur due to the baby's large size and difficulty being born.
� respiratory distress (difficulty breathing)
Too much insulin in a baby's system due to diabetes can delay surfactant production which is needed for lung maturation
http://www.musckids.com/health_library/hrnewborn/diabtmom.htm
(The above is from a children's hospital).
Anti-insulin activity in normal newborn cord-blood serum: absence of IgG-mediated insulin binding
JR Bilbao, B Calvo, I Urrutia, A Linares and L Castano
Department of Pediatrics, Hospital de Cruces, Barakaldo-Basque Country, Bizkaia, Spain.
Insulin autoantibodies (IAAs) are present in approximately 60% of type I diabetes patients at onset and are used as predictors for the disease. Although the prevalence of IAAs in the general population has been reported to be <1%, preliminary data have pointed out a higher proportion of IAA positivity in newborn cord-blood serum, and some authors have suggested that they are immunoglobulin G antibodies, resulting from a hypothetical gestational insulitis. To characterize this insulin-binding activity, we analyzed cord-blood sera from 100 healthy newborns, as well as serum from 21 of their mothers at delivery, 179 new-onset type I diabetic patients, and 200 healthy control subjects. IAAs were present in 0.5% of the control subjects and 54% of new-onset type I diabetic patients. On the other hand, 96% of the newborn cord-blood sera showed anti-insulin activity, while it was detected in only 14% of their mothers. No significant differences were observed between cord sera and the general population for islet-cell or anti-GAD autoantibodies. Anti-insulin activity in cord serum was not bound by protein A or protein G, in contrast with type I diabetes-related IAA activity. We conclude that this insulin-binding activity, present in most newborn cord sera and specific to the child, is not IgG mediated. These data, together with the absence of other pancreatic autoimmunity markers in this population, suggest that it is an isolated phenomenon not related to type I diabetes or other pancreatic autoimmune processes and is due to the presence of a cross-reacting molecule in cord blood that has yet to be identified.
Identification of a renal-specific oxido-reductase in newborn diabetic mice
(diabetes mellitus / diabetic nephropathy)
Qiwei Yang*, Bharat Dixit , Jun Wada*, Yufeng Tian*, Elisabeth I. Wallner*, Satish K. Srivastva , and Yashpal S. Kanwar*,
* Department of Pathology, Northwestern University Medical School, Chicago, IL 60611; and Department of Biochemistry, University of Texas Medical Branch, Galveston, TX 77555
Communicated by Emanuel Margoliash, University of Illinois, Chicago, IL, June 8, 2000 (received for review February 23, 2000)
Aldose reductase (ALR2), a NADPH-dependent aldo-keto reductase (AKR), is widely distributed in mammalian tissues and has been implicated in complications of diabetes, including diabetic nephropathy. To identify a renal-specific reductase belonging to the AKR family, representational difference analyses of cDNA from diabetic mouse kidney were performed. A full-length cDNA with an ORF of 855 nt and yielding a 1.5-kb mRNA transcript was isolated from a mouse kidney library. Human and rat homologues also were isolated, and they had 91% and 97% amino acid identity with mouse protein. In vitro translation of the cDNA yielded a protein product of 33 kDa. Northern and Western blot analyses, using the cDNA and antirecombinant protein antibody, revealed its expression exclusively confined to the kidney. Like ALR2, the expression was up-regulated in diabetic kidneys. Its mRNA and protein expression was restricted to renal proximal tubules. The gene neither codistributed with Tamm-Horsfall protein nor aquaporin-2. The deduced protein sequence revealed an AKR-3 motif located near the N terminus, unlike the other AKR family members where it is confined to the C terminus. Fluorescence quenching and reactive blue agarose chromatography studies revealed that it binds to NADPH with high affinity (KdNADPH = 66.9 � 2.3 nM). This binding domain is a tetrapeptide (Met-Ala-Lys-Ser) located within the AKR-3 motif that is similar to the other AKR members. The identified protein is designated as RSOR because it is renal-specific with properties of an oxido-reductase, and like ALR2 it may be relevant in the renal complications of diabetes mellitus.
http://www.pnas.org/cgi/content/abstract/97/18/9896
It is known and accepted that during pregnancy Mg and Ca levels drop in the expectant mom. The developing fetus needs those nutrients, esp. Mg (to make ATP) which is stored in the brain, heart, liver and bones.
Here's the Mg - RNA/DNA connection:
1. RNA polymerases which allow DNA to be copied by the messenger. (See section 4 first)
2. Aminoacyl transfer RNA synthetases which permit amino acid fixation on the corresponding t-RNA
3. The elongation factor of the polypeptide chain which allows the binding of aminoacyl t-RNA at the receptor site of a ribosome on m-RNA complex
4. Ribsomal peptidyltransferases which allow the formation of the peptide
And...
4. The physical integrity of the DNA helix appears to be dependent on Mg2+
a. Mg2+ ion decreases the number DNA replication errors
b. Mg2+ ion stimulates DNA repair
c. Most of the known enzymes involved in repairing DNA lesions are dependent on Mg2+ at varying degrees
d. Mg may thus by important in reducing occurrence of neoplasms
5. The physical size of the RNA aggregate is controlled by the concentration of Mg
Here's the Mg - antibody (immunoglobulin) connection:
E. Required by immunological process. Magnesium, immunity, and allergy: Mg is required for several steps of immunological reactions
1. Lymphoblastic transformation, a prerequisite of secretion of antibodies by lymphoblasts, requires Ca2+ and Mg2+
2. Mg is required for synthesis of proteins, immunoglobulins included
3. Antibody-induced complement activation is Mg dependent
4. The antigen-immunoglobulin-complement reaction induces degranulation of the mastocyte
a. The degranulated mastocyte releases various substances, mainly histimine
b. Ca2+ and Mg2+ competition appears to regulate secretion of histamine by the mastocytes
i. Ca2+ ion stimulates secretion of histamine
ii. Mg2+ ion inhibits the secretion
5. Disorders in immunity and allergy-like symptoms have been described in Mg deficiency
Both of the above links can be found here: http://www.mdschoice.com/elements/elements/major_minerals/magnesium.htm
Bottom line...pregnant women must be sure to have adequate Mg and Ca intakes, esp. if they are diabetic, to protect the child.
And yes, folic acid (which may react with the minerals, produce hydrogen, and destroy any pathogen that may be attempting to cross the barrier).
Many diabetics are chromium deficient. When one mineral drops...it most definitely effects the others.
[This message has been edited by Marnie (edited 13 January 2005).]