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  1. Article: Butyrylcholinesterase and obesity in individuals with the CHE2 C5+ and CHE2 C5- phenotypes

    Alcantara, V.M / Oliveira, L.C / Rea, R.R / Suplicy, H.L / Chautard-Freire-Maia, E.A

    International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity. 2003 Dec., v. 27, no. 12

    2003  

    Abstract: OBJECTIVE: To investigate the association between butyrylcholinesterase (BChE) activities (total and band specific) and body mass index (BMI) in obese and nonobese individuals, considering other variables (anthropometric, biochemical and hormonal) and ... ...

    Abstract OBJECTIVE: To investigate the association between butyrylcholinesterase (BChE) activities (total and band specific) and body mass index (BMI) in obese and nonobese individuals, considering other variables (anthropometric, biochemical and hormonal) and the leanness process. SUBJECTS: Obese (BMI greater than or equal to 30 kg/m2; N=181) and nonobese individuals (N=265), classified according to the CHE2 locus phenotypes, with the obese patients being followed-up when submitted to a weight-loss program. MEASUREMENTS: Anthropometric (weight, height, BMI, waist, waist/hip ratio--WHR, triceps and subscapular skinfolds, percentage of body fat and arterial pressures), hormonal (insulin, estradiol--E2, triiodothyronine--T3 and thyroxine--T4) and biochemical (glucose, total cholesterol, HDL-C, triglycerides, uric acid, urea, creatinine, sodium, potassium and BChE activities) variables. RESULTS: Although obese CHE2 C5- individuals presented higher mean BChE activities than their CHE2 C5- controls and diminished mean activities with leanness, similar comparisons did not show any difference in the CHE2 C5+ group. Furthermore, the mean serum potassium values of obese individuals were significantly higher in the CHE2 C5+ than in the CHE2 C5- phenotype. The BChE activities were less related to BMI in obese CHE2 C5- individuals than in their controls. In the CHE2 C5- obese group, significant regression coefficients were found between BChE activity variables and BMI (+), ethnic origin (higher in Euro-Brazilians), sex (higher in males), diastolic pressure (-), triceps skinfold (+), total cholesterol (+), T3 (+) and E2 (-). The main findings in the CHE2 C5+ obese group: mean insulin levels decreased with leanness and a significant correlation was detected between the C5 complex activity and creatinine (+), insulin (-) and WHR (-); a significantly higher frequency of weight loss occurred compared to the CHE2 C5- group. CONCLUSION: In the present study, different relations between obesity and some of the studied variables were found when CHE2 C5+ and CHE2 C5- individuals were compared.
    Keywords obesity ; body mass index ; cholinesterase ; enzyme activity ; phenotype ; loci ; lean body mass ; blood serum ; potassium ; Whites ; Blacks ; men ; women ; cholesterol ; skinfold thickness ; blood pressure ; waist-to-hip ratio ; insulin ; creatinine ; human diseases ; Brazil
    Language English
    Dates of publication 2003-12
    Size p. 1557-1564.
    Document type Article
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Association of the CHE2 locus with body mass index and butyrylcholinesterase activity.

    Alcântara, V M / Rodrigues, L C / Oliveira, L C / Chautard-Freire-Maia, E A

    Human biology

    2001  Volume 73, Issue 4, Page(s) 587–595

    Abstract: The butyrylcholinesterase (BChE; EC 3.1.1.8) activities of two electrophoretic bands of the CHE2 C5+ phenotype--C5 and C(OF) (other forms)--were quantified by densitometry in 100 individuals. The activity data suggested that, in addition to determining ... ...

    Abstract The butyrylcholinesterase (BChE; EC 3.1.1.8) activities of two electrophoretic bands of the CHE2 C5+ phenotype--C5 and C(OF) (other forms)--were quantified by densitometry in 100 individuals. The activity data suggested that, in addition to determining C5, the CHE2*C5+ allele also increases the level of other BChE forms. Since the relative activity of C5 showed the highest correlation coefficient with weight when compared with the other BChE activity variables (total, absolute C5, and absolute C(OF)), its median activity level was used for the classification of CHE2 C5+ phenotypes (faint and intense). Mean body mass index (BMI) was compared among the CHE2 locus phenotypes-controlled by sex, age, and ethnic group. It was shown that the intense CHE2 C5+ phenotype presents a significantly lower (p < 0.001) mean BMI (23.2) than the other phenotypes (faint CHE2 C5+ = 25.2; CHE2 C5- = 25.4). It seems that the relative COF activity is positively associated with fat storage, since CHE2 C5- and faint CHE2 C5+ phenotypes showed higher mean BMI than the intense CHE2 C5+ phenotype. Our hypothesis is that the presence of C5 in a relatively high proportion leads to less fat storage.
    MeSH term(s) Adult ; Age Factors ; Body Mass Index ; Brazil/epidemiology ; Butyrylcholinesterase/genetics ; Cholinesterases/genetics ; Chromosomes, Human, Pair 3/genetics ; Ethnic Groups/genetics ; Female ; Genetic Variation/genetics ; Genotype ; Humans ; Male ; Obesity/epidemiology ; Obesity/genetics ; Phenotype ; Regression Analysis ; Sex Characteristics ; Thinness/epidemiology ; Thinness/genetics
    Chemical Substances cholinesterase 2 (EC 3.1.1.-) ; Butyrylcholinesterase (EC 3.1.1.8) ; Cholinesterases (EC 3.1.1.8)
    Language English
    Publishing date 2001-07-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1116-2
    ISSN 1534-6617 ; 0018-7143
    ISSN (online) 1534-6617
    ISSN 0018-7143
    DOI 10.1353/hub.2001.0047
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Butyrylcholinesterase variants (BCHE and CHE2 Loci) associated with erythrocyte acetylcholinesterase inhibition in farmers exposed to pesticides.

    Fontoura-da-Silva, S E / Chautard-Freire-Maia, E A

    Human heredity

    1996  Volume 46, Issue 3, Page(s) 142–147

    Abstract: Farmers exposed to pesticides and classified as mildly poisoned and controls on the basis of erythrocyte acetylcholinesterase (AChE) activity were examined for butyrylcholinesterase (BChE) genetic variability. The mildly poisoned group showed a ... ...

    Abstract Farmers exposed to pesticides and classified as mildly poisoned and controls on the basis of erythrocyte acetylcholinesterase (AChE) activity were examined for butyrylcholinesterase (BChE) genetic variability. The mildly poisoned group showed a significantly higher frequency of non-usual phenotypes (13.1%) than the control group (1.7%). These phenotypes showed a relative risk (RR) of 8.8 of erythrocyte AChE inhibition when compared to the usual phenotype. Among the subjects with the usual phenotype, the CHF2 C5- phenotype was more frequent in the mildly poisoned group (94.3%) than in the control group (81.0%), leading to an RR of 3.9 when compared to the CHE2 C5+ phenotype. When the total sample was classified into two groups (usual CHE2 C5+ and other phenotypes), the usual CHE2 C5+ phenotype was found to be responsible for a preventive fraction of about 14% of the cases of mild poisoning. The present data suggest that BChE genetic variability offers differential protection against erythrocyte AChE inhibition.
    MeSH term(s) Acetylcholinesterase/blood ; Adolescent ; Adult ; Aged ; Agricultural Workers' Diseases/chemically induced ; Agricultural Workers' Diseases/enzymology ; Agricultural Workers' Diseases/genetics ; Butyrylcholinesterase/genetics ; Cholinesterase Inhibitors/pharmacology ; Cholinesterases/genetics ; Chromosome Mapping ; Erythrocytes/enzymology ; Female ; Genetic Variation ; Humans ; Male ; Middle Aged ; Pesticides/pharmacology ; Risk Assessment
    Chemical Substances Cholinesterase Inhibitors ; Pesticides ; Acetylcholinesterase (EC 3.1.1.7) ; Butyrylcholinesterase (EC 3.1.1.8) ; Cholinesterases (EC 3.1.1.8)
    Language English
    Publishing date 1996-05
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2424-7
    ISSN 1423-0062 ; 0001-5652
    ISSN (online) 1423-0062
    ISSN 0001-5652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Variant K of butyrylcholinesterase and types 1 and 2 of diabetes mellitus.

    Lepienski, L M / Alcântara, V M / Souza, R L R / Réa, R R / Chautard-Freire-Maia, E A

    Chemico-biological interactions

    2005  Volume 157-158, Page(s) 374–375

    MeSH term(s) Adolescent ; Age of Onset ; Alleles ; Butyrylcholinesterase/genetics ; Child ; Diabetes Mellitus, Type 1/enzymology ; Diabetes Mellitus, Type 1/genetics ; Diabetes Mellitus, Type 2/enzymology ; Diabetes Mellitus, Type 2/genetics ; Genetic Predisposition to Disease ; Genetic Variation/genetics ; Humans
    Chemical Substances Butyrylcholinesterase (EC 3.1.1.8)
    Language English
    Publishing date 2005-12-27
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 218799-1
    ISSN 1872-7786 ; 0009-2797
    ISSN (online) 1872-7786
    ISSN 0009-2797
    DOI 10.1016/j.cbi.2005.10.060
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Dry skin and extranumerary areolae.

    Freire-Maia, N / Chautard-Freire-Maia, E A

    American journal of medical genetics

    1990  Volume 35, Issue 1, Page(s) 141

    MeSH term(s) Breast/abnormalities ; Ectodermal Dysplasia/genetics ; Female ; Genes, Dominant ; Humans ; Male ; Nipples/abnormalities
    Language English
    Publishing date 1990-01
    Publishing country United States
    Document type Letter
    ZDB-ID 133387-2
    ISSN 0148-7299
    ISSN 0148-7299
    DOI 10.1002/ajmg.1320350129
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Concerning the linkage relationships of the Gc and MNSs loci. (Hum. Genet. 43, 215-220, 1978) Disentangling part of the data overlap.

    Chautard-Freire-Maia, E A

    Human genetics

    1979  Volume 49, Issue 1, Page(s) 115–116

    MeSH term(s) Alpha-Globulins/genetics ; Chromosome Mapping ; Female ; Genetic Linkage ; Humans ; MNSs Blood-Group System ; Male
    Chemical Substances Alpha-Globulins ; MNSs Blood-Group System
    Language English
    Publishing date 1979-05-23
    Publishing country Germany
    Document type Letter
    ZDB-ID 223009-4
    ISSN 1432-1203 ; 0340-6717
    ISSN (online) 1432-1203
    ISSN 0340-6717
    DOI 10.1007/bf00277693
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Butyrylcholinesterase and obesity in individuals with the CHE2 C5+ and CHE2 C5- phenotypes.

    Alcântara, V M / Oliveira, L C / Réa, R R / Suplicy, H L / Chautard-Freire-Maia, E A

    International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity

    2003  Volume 27, Issue 12, Page(s) 1557–1564

    Abstract: Objective: To investigate the association between butyrylcholinesterase (BChE) activities (total and band specific) and body mass index (BMI) in obese and nonobese individuals, considering other variables (anthropometric, biochemical and hormonal) and ... ...

    Abstract Objective: To investigate the association between butyrylcholinesterase (BChE) activities (total and band specific) and body mass index (BMI) in obese and nonobese individuals, considering other variables (anthropometric, biochemical and hormonal) and the leanness process.
    Subjects: Obese (BMI> or =30 kg/m(2); N=181) and nonobese individuals (N=265), classified according to the CHE2 locus phenotypes, with the obese patients being followed-up when submitted to a weight-loss program.
    Measurements: Anthropometric (weight, height, BMI, waist, waist/hip ratio-WHR, triceps and subscapular skinfolds, percentage of body fat and arterial pressures), hormonal (insulin, estradiol-E(2), triiodothyronine-T(3) and thyroxine-T(4)) and biochemical (glucose, total cholesterol, HDL-C, triglycerides, uric acid, urea, creatinine, sodium, potassium and BChE activities) variables.
    Results: Although obese CHE2 C5- individuals presented higher mean BChE activities than their CHE2 C5- controls and diminished mean activities with leanness, similar comparisons did not show any difference in the CHE2 C5+ group. Furthermore, the mean serum potassium values of obese individuals were significantly higher in the CHE2 C5+ than in the CHE2 C5- phenotype. The BChE activities were less related to BMI in obese CHE2 C5- individuals than in their controls. In the CHE2 C5- obese group, significant regression coefficients were found between BChE activity variables and BMI (+), ethnic origin (higher in Euro-Brazilians), sex (higher in males), diastolic pressure (-), triceps skinfold (+), total cholesterol (+), T(3) (+) and E(2) (-). The main findings in the CHE2 C5+ obese group: mean insulin levels decreased with leanness and a significant correlation was detected between the C(5) complex activity and creatinine (+), insulin (-) and WHR (-); a significantly higher frequency of weight loss occurred compared to the CHE2 C5- group.
    Conclusion: In the present study, different relations between obesity and some of the studied variables were found when CHE2 C5+ and CHE2 C5- individuals were compared.
    MeSH term(s) Adolescent ; Adult ; Aged ; Anthropometry ; Body Mass Index ; Butyrylcholinesterase/blood ; Cholinesterases/genetics ; Female ; Follow-Up Studies ; Humans ; Insulin/blood ; Male ; Middle Aged ; Obesity/enzymology ; Obesity/genetics ; Obesity/physiopathology ; Phenotype ; Regression Analysis ; Weight Loss
    Chemical Substances Insulin ; cholinesterase 2 (EC 3.1.1.-) ; Butyrylcholinesterase (EC 3.1.1.8) ; Cholinesterases (EC 3.1.1.8)
    Language English
    Publishing date 2003-12
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1103255-8
    ISSN 0307-0565
    ISSN 0307-0565
    DOI 10.1038/sj.ijo.0802464
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Probable assignment of the serum cholinesterase (E1) and transferrin (Tf) loci to chromosome 1 in man.

    Chautard-Freire-Maia, E A

    Human heredity

    1977  Volume 27, Issue 2, Page(s) 134–142

    Abstract: Suggestions of linkage in males between the E1 and Rh loci (Z = + 1.849; THETA = 0.20) and between the Tf and Rh loci (Z = + 0.595; THETA = 0.35) are presented. The assignment of the E1 and Tf loci to chromosome 1 and the order Tf:E1:PGD:Rh:PGM1 are ... ...

    Abstract Suggestions of linkage in males between the E1 and Rh loci (Z = + 1.849; THETA = 0.20) and between the Tf and Rh loci (Z = + 0.595; THETA = 0.35) are presented. The assignment of the E1 and Tf loci to chromosome 1 and the order Tf:E1:PGD:Rh:PGM1 are cautiously proposed.
    MeSH term(s) Cholinesterases/blood ; Chromosomes, Human, 1-3 ; Female ; Genetic Linkage ; Genotype ; Heterozygote ; Humans ; Male ; Pedigree ; Recombination, Genetic ; Rh-Hr Blood-Group System ; Transferrin
    Chemical Substances Rh-Hr Blood-Group System ; Transferrin ; Cholinesterases (EC 3.1.1.8)
    Language English
    Publishing date 1977
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2424-7
    ISSN 1423-0062 ; 0001-5652
    ISSN (online) 1423-0062
    ISSN 0001-5652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Butyrylcholinesterase activity and risk factors for coronary artery disease.

    Alcântara, V M / Chautard-Freire-Maia, E A / Scartezini, M / Cerci, M S J / Braun-Prado, K / Picheth, G

    Scandinavian journal of clinical and laboratory investigation

    2002  Volume 62, Issue 5, Page(s) 399–404

    Abstract: The aim of this study was to verify which risk factors for coronary artery disease (CAD) are independently correlated with butyrylcholinesterase (BChE) activity. We studied 88 White individuals (43 males) aged 47.3+/-15.7 years (mean+/-SD; range: 14.0-80. ...

    Abstract The aim of this study was to verify which risk factors for coronary artery disease (CAD) are independently correlated with butyrylcholinesterase (BChE) activity. We studied 88 White individuals (43 males) aged 47.3+/-15.7 years (mean+/-SD; range: 14.0-80.0 years) including 38 with hyperlipidemia, 30 with hypertension and 5 with diabetes mellitus (DM). Simple correlation analysis showed that BChE activity was positively correlated with age, sex, body mass index, hypertension and DM, as well as with triglycerides (TGs), total cholesterol, low-density lipoprotein cholesterol and apolipoprotein B (Apo B). However, after a step-wise multiple regression analysis, the only risk factors for CAD that showed independent correlations with BChE activity were, in descending order of importance, Apo B, TGs and DM. Our findings seem to reinforce suggested associations of BChE activity with lipoprotein synthesis and with hypertension, as well as supporting previous data on the relation of BChE activity with disturbances found in diabetes mellitus.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Apolipoproteins B/blood ; Butyrylcholinesterase/blood ; Butyrylcholinesterase/genetics ; Cholesterol/blood ; Cholinesterases/blood ; Coronary Artery Disease/blood ; Coronary Artery Disease/enzymology ; Coronary Artery Disease/epidemiology ; Diabetes Mellitus/blood ; Diabetes Mellitus/enzymology ; Diabetes Mellitus/epidemiology ; Female ; Humans ; Hyperlipidemias/blood ; Hyperlipidemias/enzymology ; Hyperlipidemias/epidemiology ; Hypertension/blood ; Hypertension/enzymology ; Hypertension/epidemiology ; Male ; Middle Aged ; Phenotype ; Risk Factors ; Triglycerides/blood
    Chemical Substances Apolipoproteins B ; Triglycerides ; Cholesterol (97C5T2UQ7J) ; Butyrylcholinesterase (EC 3.1.1.8) ; Cholinesterases (EC 3.1.1.8)
    Language English
    Publishing date 2002
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3150-1
    ISSN 1502-7686 ; 0036-5513
    ISSN (online) 1502-7686
    ISSN 0036-5513
    DOI 10.1080/00365510260296564
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: CHE1 UF serum cholinesterase phenotype in whites and non-whites from southern Brazil as determined by a new method.

    Alcântara, V M / Chautard-Freire-Maia, E A / Culpi, L

    Human heredity

    1991  Volume 41, Issue 2, Page(s) 103–106

    Abstract: A sample of 251 Whites and 818 Non-Whites, from Curitiba (southern Brazil), was typed with a new method with the aim of estimating the frequency of the CHE1*F allele. The frequency of this allele did not differ between Whites (0.60 +/- 0.34%) and Non- ... ...

    Abstract A sample of 251 Whites and 818 Non-Whites, from Curitiba (southern Brazil), was typed with a new method with the aim of estimating the frequency of the CHE1*F allele. The frequency of this allele did not differ between Whites (0.60 +/- 0.34%) and Non-Whites (0.49 +/- 0.17%), being estimated as 0.51 +/- 0.15% for the whole sample. The use of the inhibitors DL-propranolol and RO2-0683 with alpha-naphthylacetate as substrate (at 37 degrees C) was efficient for discriminating between the CHE1 U and CHE1 UF phenotypes.
    MeSH term(s) Adolescent ; Adult ; African Continental Ancestry Group/genetics ; Aged ; Brazil ; Cholinesterase Inhibitors/pharmacology ; Cholinesterases/blood ; Cholinesterases/genetics ; European Continental Ancestry Group/genetics ; Female ; Gene Frequency/genetics ; Genetic Techniques ; Humans ; Male ; Middle Aged ; Naphthols ; Phenotype ; Propranolol/pharmacology ; Quaternary Ammonium Compounds/pharmacology
    Chemical Substances Cholinesterase Inhibitors ; Naphthols ; Quaternary Ammonium Compounds ; Ro 20683 (1954-17-2) ; alpha-naphthyl acetate (830-81-9) ; Propranolol (9Y8NXQ24VQ) ; Cholinesterases (EC 3.1.1.8)
    Language English
    Publishing date 1991
    Publishing country Switzerland
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2424-7
    ISSN 1423-0062 ; 0001-5652
    ISSN (online) 1423-0062
    ISSN 0001-5652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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