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Bone mineral density in children with celiac disease. Effect of a Gluten-free diet.

OBJECTIVE: To assess the degree of osteopenia in children with celiac disease (CD) at the time of diagnosis and the effect of a gluten-free diet (GFD). DESIGN: Longitudinal and prospective study. SUBJECTS: In total, 24 children (18 girls, six boys) diagnosed with CD by means of an intestinal biopsy were included in the study. Mean+/-s.d. age was 4.9+/-4.3 years. In all, 16 patients were under (2.20+/-0.82 year) and eight were over the age of 4 years (10.30+/-2.90 year). The time between the first symptoms and diagnosis was 17.30+/-24.70 months (range: 2-109 months). Spine bone mineral content (BMC), area and bone mineral density (BMD) were measured by DXA at baseline and 1.17+/-0.93 years after GFD. RESULTS: Before treatment, mean+/-s.d. BMD was 0.46+/-0.13 g/cm(2), the BMD Z-score was -1.36+/-1.20, and was below -1 s.d. in 14 patients (58%). BMC, area and BMD increased significantly on GFD. BMD increased from 0.46+/-0.13 to 0.55+/-0.13 g/cm(2) (P<0.001). BMD Z-score improved from -1.36+/-1.20 to -0.23+/-1.20 after GFD. However, BMD increased more than 1 s.d. in 15 of the 16 children under the age of 4 years, a similar increase was only observed in four of the eight children aged more than 4 years, some of whom did not follow GFD strictly. Height and weight increased significantly with GFD (P<0.001) and the increase correlated positively with the increase in BMD. CONCLUSIONS: Axial BMD below -1 s.d. was found in 58% of children with celiac disease. Axial bone mass reverted to normal values in most children under the age of 4, who had low bone mass, all of whom followed GFD strictly.

Absorptiometry, Photon↗

Antigenic reactivity of peptides derived from wheat gluten with sera from patients with coeliac disease.

Fraction B from a peptic-tryptic digest of gluten from Scout 66 wheat has already been shown to cause histological damage to the jejunal mucosa of coeliac patients. Peptide fractions, designated P1-P4, have been prepared from it by a combination of gel filtration (producing an intermediate fraction pseudo-B2: psi B2) and reverse-phase high pressure liquid chromatography. An enzyme-linked immunosorbent assay (ELISA) has been used to measure IgG antibodies to fraction B in sera from untreated coeliac patients, patients with inflammatory bowel disease (IBD) and healthy individuals. The coeliac group had significantly higher (P less than 0.05) antibody levels to fraction B than either of the control groups [medians: coeliac disease (n = 21), 0.247; IBD (n = 17) 0.019; healthy controls (n = 13) 0.020]. Five coeliac sera which gave high absorbance values in the ELISA were chosen and preincubated with fraction B in a range of concentrations, before assay by ELISA: a dose-dependent inhibition of binding was found. Two sera which gave high ELISA values were preincubated with fractions B2 and P1-P4. B2, P1, P2 and P4 gave a dose-dependent inhibition, with P1 being the most potent. Absolute values were different for the two sera but the same relative pattern of reactivity was observed for each. With the serum giving the higher ELISA value the concentration of fraction (microgram/ml) giving a 50% inhibition of binding when 0.5 ml was added to 0.5 ml of a 1/500 dilution of the serum (IC50) was 2.6 for fraction B, 61 for P1, 155 for B2 and 285 and 295 for P4 and P2 respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

Antigen-Antibody Reactions↗

Oral mucosal changes in coeliac patients on a gluten-free diet.

Oral mucosal lesions or dental enamel defects may be the only presenting features of coeliac disease. A series of 128 patients with coeliac disease (CD) on a gluten-free diet (GFD), 8 patients with a newly diagnosed CD, and 30 healthy controls participated in a clinical and histopathological study of their oral mucosa. Oral mucosal lesions occurred in 71/128 GFD-treated CD patients. in 4/8 untreated and in 10/30 controls, and oral symptoms in 85/128, in 6/8 and in 10/30, respectively. Five CD patients had aphthous ulcers. Moderate to severe lymphocytic inflammation occurred in 36/117 and in 14/117 of the biopsy specimens of GFD-treated CD patients, in 1/8 and 2/8 of untreated CD patients, and in 3/30 and in 1/30 of controls, respectively. Intraepithelial T-cells were significantly more frequent in GFD-treated CD patients than in controls. There was no difference between untreated CD patients and controls. In the lamina propria of the GFD-treated CD patients, T-cells were more frequent than in the other groups. Mast cells were significantly more frequent in patients with GFD-treated CD. Nine GFD-treated CD patients had raised serum endomysium IgA antibody titres, although five of them reported to follow a strict GFD. A lack of strict compliance with a GFD may be related to the high prevalence of oral changes and symptoms. In addition, T-cell infiltration in the oral mucosa tends to increase with a longer duration of CD, independent of GFD-treatment. Clinically, it is important to study the oral cavity of patients suspected of having CD where the only clue to the disease may reside, since no less than 66% of the patients in this study had oral symptoms.

Adolescent↗

Psoriasis patients with antibodies to gliadin can be improved by a gluten-free diet.

In a previous screening study, 16% of patients with psoriasis had IgA and/or IgG antibodies to gliadin (AGA). The aim of the present study was to evaluate the effect of a gluten-free diet (GFD) in 33 AGA-positive and six AGA-negative psoriasis patients. Of the 33 AGA-positive patients, two had IgA antibodies to endomysium (EmA) and 15 an increased number of lymphocytes in the duodenal epithelium, but in some this increase was slight. Two patients had villous atrophy. A 3-month period on a GFD was followed by 3 months on the patient's ordinary diet. The severity of psoriasis was evaluated with the psoriasis area and severity index (PASI). The examining dermatologists were unaware of the EmA and duodenal biopsy results throughout the study. Thirty of the 33 patients with AGA completed the GFD period, after which they showed a highly significant decrease in mean PASI. This included a significant decrease in the 16 AGA-positive patients with normal routine histology in duodenal biopsy specimens. The AGA-negative patients were not improved. After GFD, the AGA values were lower in 82% of those who improved. There was a highly significant decrease in serum eosinophil cationic protein in patients with elevated AGA. When the ordinary diet was resumed, the psoriasis deteriorated in 18 of the 30 patients with AGA who had completed the GFD period. In conclusion, psoriasis patients with raised AGA might improve on a GFD even if they have no EmA or if the increase in duodenal intraepithelial lymphocytes is slight or seemingly absent.

Adolescent↗

The gluten response in children with celiac disease is directed toward multiple gliadin and glutenin peptides.

BACKGROUND & AIMS: Gluten (GLU)-specific T-cell responses in HLA-DQ2 positive adult celiac disease (CD) patients are directed to an immunodominant alpha-gliadin (GLIA) peptide that requires deamidation for T-cell recognition. The aim of the current study was to determine which GLU peptide(s) are involved early in disease. METHODS: We have characterized the GLU-specific T-cell response in HLA-DQ2 positive children with recent onset CD. RESULTS: We found that 50% of these patients do not respond to the alpha-GLIA peptide but to a diverse set of GLIA and glutenin (GLT) peptides, including 6 novel epitopes. Moreover, individual patients respond to distinct (combinations of) GLU peptides. T-cell cross-reactivity toward homologous GLIA and GLT peptides was observed, which might play a role in the initial spreading of the GLU-specific T-cell response. Although all pediatric patients displayed deamidation-dependent responses, deamidation-independent responses were found in the majority of patients as well. Finally, T-cell responses to 3 of these novel GLU peptides were found in adult CD patients. CONCLUSIONS: The diversity of the GLU-specific T-cell response is far greater than was previously appreciated. Both adult and young CD patients can respond to a diverse repertoire of GLU peptides. The observation that T-cell responses to 3 of the novel peptides are independent of deamidation indicates that T-cell responses can be initiated toward native GLU peptides. The possibility that deamidation drives the GLU response toward immunodominant T-cell stimulatory peptides after disease initiation is discussed.

Amino Acid Sequence↗

Oats and the gluten-free diet.

Whether oats should be included in a gluten-free diet has been debated for half a century. In 1995, the largest and most scientifically rigorous study on the safety of oats was published. Investigators concluded that the consumption of oats was safe for adults with celiac disease. Since 1995, several additional studies have been published. Without exception, these investigations found no adverse effects associated with the regular consumption of moderate amounts of oats. However, there are concerns among some authorities on celiac disease that even if oats themselves are safe, they nonetheless may be contaminated with wheat, rye, or barley. Unfortunately, the extent to which contamination of commercial oat products occurs is not known. Ideally, if a patient appears likely to use oats, they should be advised to consume only those products tested and found to be free of contamination.

Avena↗

Endoscopic and histological findings in the duodenum of adults with celiac disease before and after changing to a gluten-free diet: a 2-year prospective study.

BACKGROUND AND STUDY AIMS: Published follow-up data on small-intestinal recovery in patients with celiac disease are scarce and contradictory. This is especially the case for adult patients, who often show incomplete histological recovery after starting a gluten-free diet (GFD). We conducted a 2-year prospective study to evaluate the effectiveness of a GFD in improving the endoscopic and histological duodenal findings in adults with celiac disease. PATIENTS AND METHODS: We studied 42 consecutive adults with newly diagnosed celiac disease (13 men, 29 women; mean age 32.7 years, range 15 - 72 years). All the patients underwent esophagogastroduodenoscopy and small-bowel biopsy. We devised our own grading system for the endoscopic appearance of the duodenum, which ranged from "normal" appearance to "mild", "moderate", or "severe" alterations. Small-bowel biopsies were obtained from the second part of the duodenum (and from the duodenal bulb when it had a micronodular appearance). The histopathological appearances were described according to modified Marsh criteria. RESULTS: A normal endoscopic appearance in the duodenum was found in 5/42 patients (11.9 %) at entry and in 32/42 patients (76.2 %) after 2 years on a GFD. Subdividing the patients according to age, patients aged from 15 years to 60 years showed significant improvement within 12 months ( P < 0.0001 for patients aged from 15 years to 45 years; P < 0.003 for patients in the 46 years to 60 years group), whereas the improvement in endoscopic findings in patients older than 60 years was not statistically significant, even 24 months after starting the GFD. "Normal" histology was reported in none of the patients at entry, but in 25 patients (59.5 %) after 24 months on a GFD, but this parameter did not show a significant improvement until the patients had been on the GFD for 12 months ( P < 0.0001). Only the younger patients (5 - 30 years) showed significant improvement of histology within 12 months ( P < 0.034); older patients (>30 years) showed histological improvement but this was not statistically significant, even after 24 months on a GFD. CONCLUSIONS: This study shows for the first time that endoscopic recovery is faster than histological recovery in adults with celiac disease who go on a GFD. Moreover, older patients showed incomplete endoscopic and histological recovery even 24 months after starting a GFD. We therefore advise, as a minimum recommendation, that follow-up biopsies should be taken 1 - 2 years after starting a GFD in adults with celiac disease.

Adolescent↗

[Pseudohyperthyroxinemia in endemic sprue--reversibility with a gluten-free diet].

HISTORY: An increased concentration of free T3 (fT3) with normal TSH was repeatedly measured in a 58-year-old man with diarrhoea. Hyperthyroidism was diagnosed and he was treated with thyrostatic drugs. INVESTIGATIONS: Referred to our clinic, fT4 concentration, determined by routine ELISA, was found to be raised to 33.9 pmol/l, while fT3 and TSH levels were within normal limits. But the equilibrium-dialysis method gave a normal serum level also for fT4. Gastroscopy suggested coeliac disease, confirmed histologically. TREATMENT AND COURSE: The symptoms quickly improved on a gluten-free diet and the fT4 level returned to normal values even on routine measurement. CONCLUSION: The raised fT4 level with non-suppressed TSH was only revealed as a false finding by special non-routine laboratory methods. The reversibility and the close time relationship of the reported laboratory data with the clinical manifestations of the concomitant coeliac disease strongly suggested that changes in serum in the course of the latter disease played a role in these misleading laboratory results. An interference of coeliac disease with some laboratory tests has been previously described.

Celiac Disease↗

A recombinant protein of two high molecular weight glutenins alters gluten polymer formation in transgenic wheat.

Wheat high molecular weight glutenin subunits (HMW-GS) are the most important determinants of its superiority for making leavened bread. Following synthesis, these proteins are sequestered into the endoplasmic reticulum and assemble into extremely large elastic polymers, linked by noncovalent and intermolecular disulfide bonds. To study the structural requirements for the assembly of HMW-GS, we have expressed in transgenic wheat a recombinant protein between two cognate x- and y-type subunits. In contrast to the natural polymerized x- and y-type HMW-GS, a significant amount of the recombinant subunit remained monomeric. Nonreducing SDS-polyacrylamide gel electrophoresis, coupled with limited proteolysis, showed that the monomeric form of the recombinant subunit contained an unusual intramolecular disulfide bond, linking an N-terminal cysteine to the single C-terminal cysteine residue. In addition, sucrose gradient analysis revealed that this intramolecular disulfide bond impeded the ability of the recombinant subunit to assemble into polymers. Despite of its altered assembly, a notable amount of the overexpressed recombinant subunit was also present in glutenin polymers. Moreover, its presence significantly altered the subunit composition of the polymer. Our results show that it is possible to modify gluten assembly and properties by expressing recombinant HMW-GS in transgenic wheat, and have a major implication for the improvement of wheat bread-making quality.

Amino Acid Sequence↗

Anxiety but not depression decreases in coeliac patients after one-year gluten-free diet: a longitudinal study.

BACKGROUND: A high prevalence of anxiety and depression has been reported in untreated coeliac disease (CD) patients. At present, the role of a gluten-free diet (GFD) on psychological disorders is still poorly known. The aim of this study was to evaluate state and trait anxiety and depression in adult CD patients before and after 1 year of GFD. METHODS: A total of 35 CD patients were studied before and after 1 year of GFD. A total of 59 healthy subjects matched for gender, age and socio-economic status were studied as a control group. State and trait anxiety were assessed with the STAI test; depression was assessed using the modified version of the SDS Zung self-rating depression scale (M-SDS). The tests were administered before (TO) and after 1 year of GFD (T1). RESULTS: At T0, CD patients showed high levels of state anxiety in a significantly higher percentage compared to controls (71.4% versus 23.7%; P < 0.0001), while there was no significant difference in trait anxiety between groups (25.7% versus 15.2%; P:ns); the percentage of subjects with depression was significantly higher in the CD group than in the control group (57.1% versus 9.6%; P < 0.0001). At T1, a significant decrease in the percentage of state anxiety was found in CD patients (T0: 71.4% versus T1: 25.7%; P < 0.001), while there were no significant changes in the percentage of trait anxiety (T0: 25.7% versus T1: 17.1%; P:ns) or depression (T0: 57.1.% versus T1: 45.7%; P:ns), which was still present in a significantly higher percentage in treated CD compared to controls (P < 0.0001). CONCLUSION: In CD patients anxiety is present in a predominantly reactive form and it decreases after GFD. Depression is present in a higher percentage in CD patients and 1 year of GFD fails significantly to affect depressive symptoms. The presence of depression after GFD could be related to the reduction in quality of life in CD patients. The non-regression of depression after GFD could suggest that these patients need psychological support.

Adult↗

Reduced plasma ghrelin concentration in celiac disease after gluten-free diet treatment.

OBJECTIVE: Celiac disease (CD) is characterized by malabsorption, weight loss and increased energy expenditure. The aim of this study was to investigate the relationship between circulating ghrelin and leptin, which are produced at gastrointestinal level and are involved in energy balance regulation, and changes in body composition and energy metabolism in CD patients before and after gluten-free diet (GFD)-induced restoration of the intestinal mucosa. MATERIAL AND METHODS: Body composition (by dual-energy X-ray absorptiometry), resting metabolic rate and substrate oxidation rates (by indirect calorimetry) were assessed in 18 adult women with the classic form of CD (age 31.4 +/- 7.8 years, body mass index (BMI) 20.6 +/- 2.1 kg/m2) before and at least 2 years after GFD treatment and in 22 age-matched healthy women (age 33.1 +/- 7.2 years, BMI 22.9 +/- 2.1 kg/m2). Plasma leptin and ghrelin concentrations were assessed by the ELISA and RIA procedures, respectively. RESULTS: Fat-free mass was reduced before and after GFD compared to control subjects (p < 0.01), while fat mass increased after treatment (p < 0.01). Plasma leptin concentration was similar between groups and correlated only with BMI (r = 0.84; p < 0.0001) and percentage body fat (r = 0.86; p < 0.0001). Circulating ghrelin levels (pg/ml) were similar between untreated patients and control subjects, but decreased after GFD treatment (untreated CD: 282.6 +/- 55.5 versus treated 109.2 +/- 49.9; p < 0.0001 and versus control subjects 262.2 +/- 30.0; p < 0.0001) and were negatively correlated with BMI in CD patients (r = -0.32; p < 0.01). CONCLUSIONS: The low plasma ghrelin concentration found in CD patients after GFD treatment could only be partially explained by the slight increase in body-weight and fat mass. Further studies are needed to better ascertain the role played by an incomplete functional or quantitative recovery of ghrelin-producing cells in CD.

Adult↗

Children with celiac disease express inducible nitric oxide synthase in the small intestine during gluten challenge.

BACKGROUND: Childhood celiac disease in Sweden is presently seen at an incidence of around 1/250 and is thus one of the commonest chronic diseases in children. It has recently been shown that children with untreated celiac disease have increased levels of nitrate/nitrite in the urine, most likely reflecting an increased production of nitric oxide in the inflamed mucosa. Nitric oxide is produced from L-arginine by an inducible or a constitutive nitric oxide synthase. The inducible nitric oxide synthase (iNOS) can be stimulated in various cells by, for instance, inflammatory mediators. The present study has been done to find a possible source of nitric oxide in the small intestine that could result in the increased levels of nitrate/nitrite in the urine in children with active celiac disease. METHODS: Small-intestinal biopsy specimens from children with active celiac disease were labeled with rabbit-anti-human antibodies to iNOS and visualized with fluorescent pig anti-rabbit antibodies. The specimens were then analyzed with confocal microscopy to assess the labeling pattern. RESULTS: In all of seven specimens from children with increased levels of nitrate/nitrite in the urine, we detected antibodies to iNOS, whereas in five of six control specimens--that is, from children with normal nitrate/nitrite levels--we could not detect any iNOS. CONCLUSIONS: Children with active celiac disease have a gluten-induced nitric oxide production in the small intestine reflected by increased urine levels of nitrate/nitrite and iNOS expression in the intestine. We conclude that the increased production of nitric oxide could presumably, directly or indirectly, result in injury of the small-intestinal tissue.

Adolescent↗

Wheat gluten-based diet retarded ethanol metabolism by altering alcohol dehydrogenase and not carnitine status in adult rats.

The objective of this study was to determine the effect of a lysine-deficient diet on carnitine status in adult rats and subsequently on ethanol metabolism. Adult male rats were fed either the AIN-76 diet (NS), the AIN-76 diet with wheat gluten (WG) replacing casein, the WG diet plus 0.8% L-lysine (LS), or the LS diet plus 0.5% L-carnitine (CS) for 30 days. On the 31st day the rats were given an oral dose of ethanol and blood-ethanol concentrations (BEC) were monitored for the next 8 hours. One week later the rats were given a second dose of ethanol and urine was collected until killed, 3 hours post-ethanol administration (PEA). Besides growth retardation and hypoproteinemia, BEC were significantly elevated in the WG group compared to the other group at hours 3-8 PEA. There were no significant differences in BEC between the LS and CS groups; however, their BEC were significantly higher than that of the NS group. The BEC were inversely related to liver alcohol dehydrogenase (ADH) activities which were significantly lower in WG, LS and CS groups than in the NS group. Plasma, liver and urine carnitine values were significantly higher in the CS group than in the NS, WG and LS groups, wherein the values were similar. It is concluded that the WG diet reduced ADH activity and attenuated ethanol metabolism without significantly altering blood, liver and urinary carnitines in the adult rat.

Alcohol Dehydrogenase↗

[Protein utilization of mixed feed rations in lactating pigs with reference to the essential amino acid content of the feed proteins. 2. Report. Utilization of the feed proteins in the use of soy bean extraction residue, waste liquor yeast, horse bean meal fish meal and maize gluten for a basic ration].

Nitrogen trials were performed on lactating pigs to investigate the utilization of protein from some feeding rations. The basal ration fed to the sows consisted of ground barley+oats+flaked potatoes or ground barley+sugar beet chips. The basal ration was supplemented with a protein source. The protein feeds used were extracted soya bean meal, horse bean meal, fish meal, maize gluten and waste liquor yeast. Data for the average biological value of the dietary proteins were as follows (in the given order of protein feeds): 61%, 59%, 54%, 58% and 37%. PPV data were: 44%, 43%, 39%, 44% and 28%. The proteins of nearly all rations were deficient in lysine when compared with the range of amino acids present in the proteins of sow milk.

Animal Nutritional Physiological Phenomena↗

Effect of gluten-free diet on bone mineral content in growing patients with celiac disease.

Osteoporosis is a complication of celiac disease in adulthood, but little is known about the influence of the disease on bone mineralization in children. In the present study we evaluated radial bone mineral content (BMC) in celiac children and adolescents at diagnosis and after they consumed a gluten-free diet (GFD). The BMC values of 33 celiac patients at diagnosis were significantly lower than those of 255 control subjects (P < 0.001). There was no difference between diabetic and non-diabetic celiac patients. In 14 patients the BMC increased significantly (P < 0.05, ANCOVA) after 1.28 y of GFD. In these patients the mean annual BMC increment was 0.07 g/cm, significantly greater (P < 0.05) than the increment of normal growing children (0.05 g.cm-1.y-1). Our data indicate that although osteoporosis complicates celiac disease during childhood and adolescence, GFD alone is able to remarkably improve bone mineralization.

Bone Density↗

Changes in body composition, substrate oxidation, and resting metabolic rate in adult celiac disease patients after a 1-y gluten-free diet treatment.

BACKGROUND: The incidence of celiac disease has been on the rise in both Europe and the United States. Celiac disease patients are at high risk of undernutrition because of nutrient malabsorption. OBJECTIVE: The aim of the present study was to evaluate changes in body composition and energy metabolism in a group of patients with celiac disease before and after consumption of a gluten-free diet (GFD). DESIGN: Body composition (by anthropometry and isotopic dilution), resting metabolic rate (RMR), and substrate oxidation rates (by indirect calorimetry) were assessed in 39 adult celiac disease patients (16 men and 23 women) with a mean (+/-SD) age of 29. 9 +/- 7.6 y, weight of 58.3 +/- 6.6 kg, and percentage body fat of 20.1 +/- 6.7%, and in 63 (29 men and 34 women) age- and height-matched control subjects (age: 33.2 +/- 8.1 y; weight: 66.8 +/- 6.6 kg; and percentage body fat: 25.4 +/- 3.7%). Celiac disease patients were studied twice, at diagnosis and 1 y after treatment with a GFD. RESULTS: Before treatment, celiac disease patients had a lower body weight (P < 0.05) and a higher carbohydrate oxidation rate (P < 0.01) than did control subjects. Carbohydrate oxidation rates correlated positively with fecal lipid loss in untreated celiac disease patients (r = 0.80, P < 0.0001). After the GFD, percentage body fat was higher in celiac disease patients than in control subjects (P < 0.01), and lipid intakes tended to be higher than before treatment. CONCLUSIONS: This longitudinal study showed that the GFD treatment significantly increased body fat stores. Untreated patients preferentially utilized carbohydrates as a fuel substrate, probably as a consequence of both lipid malabsorption and a high carbohydrate intake, and lipid utilization increased with the restoration of the intestinal mucosa.

Adolescent↗

Use of a four-parameter logistic model to evaluate the protein quality of mixtures of Mormon cricket meal and corn gluten meal in rats.

Weanling Sprague-Dawley rats were fed diets containing corn gluten meal (CGM), Mormon cricket meal (MCM), MCM supplemented with methionine (MCM + Met) or CGM-MCM mixtures as the sole source of dietary protein in purified diets. Animal response (weight or nitrogen gain) was analyzed as a function of nitrogen intake and described by a series of curves using a four-parameter logistic model. Parameter sharing was used to differentiate statistically between the response curves. When used for maximum nitrogen retention the quality of the protein sources could be ranked as follows: MCM + Met greater than 40 CGM-60 MCM greater than 50 CGM-50 MCM greater than 60 CGM-40 MCM greater than MCM greater than CGM. When used for maximum weight gain the ranking was as follows: MCM + Met greater than 40 CGM-60 MCM greater than 50 CGM-50 MCM greater than 60 CGM-40 MCM greater than MCM greater than CGM. The rankings of the protein sources when used for weight maintenance or nitrogen equilibrium were similar to those seen for maximum weight or nitrogen gain except for the ranking of MCM, which changed from fifth to first. These results show MCM to be a good quality protein source and that methionine is the first limiting amino acid when used for growth but not for maintenance. The shape of the response curves was dependent upon the response criteria as well as the source of dietary protein. The factors that may affect the shape of the dose-response curves and the application of nonlinear models toward animal feeding programs are discussed.

Animal Nutritional Physiological Phenomena↗

Disappearance of mesenteric lymphadenopathy with gluten-free diet in celiac sprue.

In an adult patient with untreated celiac sprue, mesenteric lymphadenopathy was detected by computerized tomography (CT). Although malignant lymphoma was suspected, the nodes disappeared after treatment with a gluten-free diet, as was documented by CT follow-up. This report demonstrates that mesenteric lymphadenopathy in celiac sprue might be benign. With the increased use of CT investigation, findings like these may be encountered more often.

Celiac Disease↗