BLOOD SERUM CONCENTRATIONS OF FOLATES AND VITAMIN B12 DURING GROWTH PERIOD OF WHITE VEAL CALVES

1988 ◽  
Vol 68 (2) ◽  
pp. 455-460 ◽  
Author(s):  
C. L. GIRARD ◽  
J. J. MATTE
Keyword(s):  
Vitamin B12 ◽  
Blood Serum ◽  
Key Words ◽  
Growth Period ◽  
Age Effect ◽  
Vitamin B ◽  
Serum Concentrations ◽  
Lower Serum ◽  
Veal Calves ◽  
Milk Replacers

Variations of hemoglobin, hematocrit, folates and vitamin B12 concentrations in blood serum were studied during the rearing period of 62 rapidly growing (1.6 kg d−1) white veal calves. The animals were fed exclusively with milk replacers during the 110 d rearing period. Hemoglobin and hematocrit decreased linearly with time (P < 0.0001). There was an age effect (P < 0.0001) on serum concentrations of vitamin B12 and folates during the rearing period. The serum concentrations of vitamin B12 increased during the first 3 wk from 214.8 pg mL−1 to 422.6 pg mL−1 and then were stable until the 13th week of the rearing period. Serum concentrations of folates decreased during the 3 wk from 11.3 ng mL−1 to 5.1 ng mL−1 and then increased to reach a stable concentration of about 14 ng mL−1 from 6 wk to the end of the rearing period. Males had significantly lower serum folates concentrations than females (P < 0.0001) but their serum profiles during the rearing period were similar. Further studies will be necessary to elucidate the consequences of a decrease in serum folates during the starting period on the growth performance of white veal calves. Key words: White veal calves, blood serum folates, vitamin B12

Influence of beef production system on vitamin B12 concentrations in plasma and muscle

2007 ◽  
Vol 87 (2) ◽  
pp. 277-280 ◽  
Author(s):  
C. L. Girard ◽  
R. Berthiaume ◽  
L. Faucitano ◽  
C. Lafrenière
Keyword(s):  
Vitamin B12 ◽  
Key Words ◽  
Production System ◽  
Production Systems ◽  
Longissimus Dorsi ◽  
Vitamin B ◽  
Beef Production ◽  
Grass Silage ◽  
Growth Promotants

Vitamin B12 concentrations in longissimus dorsi of steers were decreased by the addition of concentrate as compared with feeding with grass silage only, but this decrease was prevented by the use of growth promotants (Revalor® and Rumensin®; P = 0.06). Beef production systems can modify vitamin B12 concentrations in meat. Key words: Beef, plasma, muscle, vitamin B12

Hemodialysis and the Acute-Phase Response in Chronic Uremic Patients

1989 ◽  
Vol 12 (12) ◽  
pp. 762-765 ◽  
Author(s):  
K. Trznadel ◽  
M. Luciak ◽  
M. Paradowski ◽  
B. Kubasiewicz-Ujma
Keyword(s):  
Blood Serum ◽  
Acute Phase ◽  
Acute Phase Response ◽  
Phase Reaction ◽  
Serum Concentrations ◽  
Lower Serum ◽  
Acid Glycoprotein ◽  
Uremic Patients ◽  
Healthy Persons

In comparison with healthy persons, chronic uremic patients on regular hemodialysis treatment had significantly higher blood serum concentrations of α1-acid glycoprotein, ceruloplasmin and C4 complement component, while levels of haptoglobin, C3 and transferrin were lower. Serum α2-macroglobulin and α1-antitrypsin levels were similar in both groups. Hemodialysis with cuprophan membrane induced only slight changes in some of these glycoproteins during a 48-hour follow-up period. Seven hours after termination of hemodialysis slight, but significant, decreases in blood serum transferrin and α1-antitrypsin concentrations were observed. Hemodialysis thus does not seem to induce a conspicuous acute-phase reaction.

Response of serum concentrations of folates to dietary supplements of folic acid given to ewes during gestation

1999 ◽  
Vol 79 (3) ◽  
pp. 387-389 ◽  
Author(s):  
C. L. Girard ◽  
F. Castonguay ◽  
J. J. Matte
Keyword(s):  
Folic Acid ◽  
Key Words ◽  
Dietary Supplements ◽  
Vitamin B ◽  
Serum Concentrations

Serum folates were determined during the 24 h following the ingestion of 0, 130, 260 or 520 mg of folic acid at 12, 61 and 131 d of gestation in 38 ewes. The response of serum folates increased with the dose ingested (P < 0.0001) but decreased as gestation progressed (P < 0.005). Key words: Ewe, dietary supplements, folic acid, vitamin B12

Vitamin B12 and potential fertility in male lactovegetarians

1976 ◽  
Vol 8 (3) ◽  
pp. 221-227 ◽  
Author(s):  
Rashmi Hirwe ◽  
V. S Jathar ◽  
Shantha Desai ◽  
R. S Satoskar
Keyword(s):  
Vitamin B12 ◽  
Semen Quality ◽  
Sperm Concentration ◽  
Serum Vitamin ◽  
Vitamin B ◽  
Lower Serum ◽  
Low Serum

Semen and serum vitamin B12 levels in Indian lactovegetarian and non-vegetarian subjects were estimated along with routine semen examination. Lactovegetarians had distinctly lower serum and semen vitamin B12 levels than the non-vegetarians. However, in normal and oligospermic subjects the ratio of semen vitamin B12 to serum vitamin B12 in the various diet groups was not significantly different and was always greater than one. In azoospermic subjects the serum vitamin B12 levels were always higher than the corresponding semen vitamin B12 values. Although semen vitamin B12 content was related to serum vitamin B12 level and sperm concentration in the normal and oligospermic groups. Further, in healthy lactovegetarians with low serum and semen vitamin B12 content and oligospermia, treatment with hydroxocobalamin produced no significant improvement in semen quality.

scholarly journals Molecularly imprinted membrane for transport of urea, creatinine, and vitamin B12 as a hemodialysis candidate membrane

2021 ◽  
Vol 19 (1) ◽  
pp. 806-817
Author(s):  
Muhammad Cholid Djunaidi ◽  
Nabilah Anindita Febriola ◽  
Abdul Haris
Keyword(s):  
Polyethylene Glycol ◽  
Vitamin B12 ◽  
Kidney Function ◽  
Cross Linking ◽  
Vitamin B ◽  
Molecularly Imprinted ◽  
Selective Transport ◽  
Molecularly Imprinted Membrane ◽  
Better Than ◽  
Imprinted Membrane

Abstract High levels of urea and creatinine in the blood are a sign of decreased kidney function. To remove these substances from the blood, hemodialysis which utilizes membranes could be used. In this study, a molecularly imprinted membrane (MIM) was synthesized for the selective transport of urea. The synthesis is initiated with the polymerization of eugenol into polyeugenol and then into polyeugenoxy acetate (PA). The PA is then contacted with urea and then used as the functional polymer in the synthesis of MIM with polysulfone as the membrane base, and polyethylene glycol as the cross-linking agent. The result was later analyzed with FTIR and SEM-EDX. The membrane is then used in the transport of urea, creatinine, and vitamin B12 and then compared with the non-imprinted membrane (NIM) performance. By using UV-Vis spectrophotometry, the results showed that the membrane with 10 h heating variation is able to transport more urea and is more selective than NIM; this proves that the urea template on the MIM enables it to recognize urea molecules better than creatinine and vitamin B12. The order of transport from the best results is urea > creatinine > vitamin B12.

Röntgenspektroskopische Bestimmung der Wertigkeit des Kobalts im Vitamin B12

1954 ◽  
Vol 9 (8) ◽  
pp. 509-513 ◽  
Author(s):  
G. Boehm ◽  
A. Faessler ◽  
G. Rittmayer
Keyword(s):  
Vitamin B12 ◽  
Vitamin B

Mit einem fokussierenden Spektrographen großer Dispersion wird die Lage der K-Röntgen-absorptionskante des Kobalts in verschiedenen Verbindungen untersucht. Die Ergebnisse zeigen, daß es möglich ist, durch Bestimmung der Kantenlage die Wertigkeit des Kobalts in einer Verbindung zu bestimmen. Die Methode gestattet den eindeutigen Nachweis, daß das Kobalt im Vitamin B12 dreiwertig ist.

scholarly journals Effect of Vitamin-B1 and Vitamin-B12 on the Growth and Carotenoid Content of Haematococcus pluvialis CH-1

2015 ◽  
Vol 7 (9) ◽  
pp. 709-711
Author(s):  
Li-Xin Li ◽  
Zhi-Wei Song ◽  
Shun-Shan Duan ◽  
Ke-Jie Luo ◽  
Ting Li ◽  
...  
Keyword(s):  
Vitamin B12 ◽  
Haematococcus Pluvialis ◽  
Carotenoid Content ◽  
Vitamin B

Comparison of supplemental cobalt form on fibre digestion and cobalamin concentrations in cattle

2017 ◽  
Vol 155 (5) ◽  
pp. 832-838 ◽  
Author(s):  
R. C. WATERMAN ◽  
W. L. KELLY ◽  
C. K. LARSON ◽  
M. K. PETERSEN
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
National Research Council ◽  
Residual Effect ◽  
Vitamin B ◽  
Serum Concentrations ◽  
Forage Digestibility ◽  
Randomized Experimental Design ◽  
To Receive

SUMMARYCobalt (Co) is essential for rumen microbial metabolism to synthesize methane, acetate and methionine. It also serves as a structural component of vitamin B12(cobalamin), which functions as a coenzyme in energy metabolism. A study was conducted to determine if Co form (carbonatev. glucoheptonate) supplemented above the National Research Council requirements would improve digestibility of a low-quality forage diet and change serum cobalamin concentrations. Nineteen ruminally cannulated cows (577 ± 13 kg) were fed individually in a completely randomized experimental design. Cows were fed a grass hay diet that contained (79·2 g/kg crude protein, 565 g/kg total digestible nutrients, 633·2 g/kg neutral detergent fibre (NDF), 874·2 g/kg dry matter) at a rate of 0·02% of body weight on a as fed basis for a 62-day study, which consisted of three periods; acclimation (AC), treatment (TR) and residual (RE). Measurements taken in the AC period were used as covariates for analysis in the TR and RE periods. Cows were stratified by age (5 ± 0·4 years) and lactational history, and assigned to receive 12·5 mg supplemental Co in one of two forms: (1) 27·2 mg of Co carbonate (CC,n= 11 cows) or (2) 50 mg of Co glucoheptonate (CGH,n= 8 cows). Supplement was administered daily via a gelatin capsule placed directly into the rumen 2 h after feeding. During the last 96 h of each period, forage digestibility was measured using anin situnylon bag technique. Blood samples were collected 4 and 6 h following feeding, and 24 h before the end of each period. A treatment × period interaction was detected forin situorganic matter (OM) disappearance at 96 h; (TR period: 684 and 708 ± 81 g/kg; RE period: 676 and 668 ± 75 g/kg, for CC and CGH, respectively). Once inclusion of Co in the CGH group was removed, OM disappearance was reduced by 4·01% compared with 0·82% in the CC cows. The NDF disappearance (OM basis) was less for the TR compared with the RE at 48 h (629 and 652 ± 39 g/kg, respectively). However, by 96 h NDF disappearance was greater for TR than the RE (704 and 689 ± 44 g/kg; respectively). No differences were detected for cobalamin serum concentrations or rate of fibre fermentation. The outcomes of the current research signify that there may be a slight residual effect of Co supplementation on fermentation; there was also an indication that Co source may enhance the overall extent of fermentation.

Preparation of Cod Liver Residues and Vitamin B12 Concentrates

1954 ◽  
Vol 11 (4) ◽  
pp. 355-361 ◽  
Author(s):  
Beryl Truscott ◽  
D. G. Gage ◽  
P. L. Hoogland
Keyword(s):  
Vitamin B12 ◽  
Nutritive Value ◽  
Vitamin B ◽  
Sodium Bisulphite ◽  
Drum Drying ◽  
Different Types

As the first part of an investigation of the nutritive value of cod liver, two methods of preparation of cod liver residue were studied, as well as the effect of drum drying the residue, with and without the presence of sodium bisulphite, defatting the dried residue and extracting vitamin B12 from the dried residue.It was found that Vandenheuvel's method of preparation of residue produces very good results. The fresh residue could be dried without appreciable loss of vitamin B12 activity on a double drum dryer, operated with steam at 20 p.s.i.g. Sodium bisulphite afforded some protection during the drying. The most satisfactory results in defatting were obtained by extraction with dichloroethylene. Concentrates with vitamin B12 activity equivalent to 2–4 micrograms per milliliter were produced by extraction of dried, defatted residue with water and evaporation in vacuo.Five different types of residue were prepared for further studies.

scholarly journals The study of clinical profile and vitamin B 12 in dengue fever patients

2021 ◽  
Vol 12 (7) ◽  
pp. 47-51
Author(s):  
Mamatha Tittamegalapalya Ramalingaiah ◽  
Jeetendra Kumar Jogihalli Mood ◽  
Satyanarayana Narayanashetty ◽  
Rashmi Madappa Bhuvaneshappa
Keyword(s):  
Vitamin B12 ◽  
Hospital Stay ◽  
Dengue Fever ◽  
Platelet Transfusion ◽  
Clinical Profile ◽  
Study Patient ◽  
Vitamin B ◽  
Severe Thrombocytopenia ◽  
Duration Of Hospital Stay ◽  
Vitamin B 12

Background: Dengue is an acute infectious febrile illness characterised by thrombocytopenia and platelet dysfunction leading to bleeding manifestations. Vitamin B12 is required for platelet production in the bone marrow. So, deficiency of vitamin B12 in dengue patients can have severe thrombocytopenia. Aims and Objective: Study was aimed to know the clinical profile of dengue fever patients and to correlate serum vitamin B12 level with severity of thrombocytopenia, platelet transfusion and duration of hospital stay. Materials and Methods: This observational study was done on dengue patients for period of 3 months January 2020 to March 2020. Confirmed cases of dengue fever with NS 1 Ag positive & Ig M antibody positive were included in the study. Patient with sepsis, underlying malignancy, autoimmune disorder, hematological disorder, drugs causing thrombocytopenia were excluded from the study. Appropriate statistical methods were applied. Results: Total 50 subjects were included. Majority of subjects were in the age group 31 to 40 years. 50% were males and females respectively. Most common clinical feature was fever and bleeding manifestations. Mean Vitamin B12 was significantly lower among those with severe thrombocytopenia and highest among those with no thrombocytopenia., there was significant difference in mean Platelet transfusion and duration of hospital stay with respect to severity of Platelet count. Conclusion: Dengue fever patients with vitamin B 12 deficiency had moderate to severe thrombocytopenia and more bleeding manifestations. Those patients required more platelet transfusion and increased duration of hospital stay.

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