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  1. Article ; Online: Evaluation of the parameters related to the golden ratio in the teeth of individuals from different countries: A systematic review and meta-analysis.

    Özdemir, Hatice / Özdemir, Memiş

    The Journal of prosthetic dentistry

    2023  

    Abstract: Statement of problem: Golden proportion, golden percentage, and recurring esthetic dental (RED) proportion are parameters used in esthetic dentistry. However, a meta-analysis of studies evaluating these parameters in individuals from different countries ...

    Abstract Statement of problem: Golden proportion, golden percentage, and recurring esthetic dental (RED) proportion are parameters used in esthetic dentistry. However, a meta-analysis of studies evaluating these parameters in individuals from different countries is lacking.
    Purpose: The purpose of this systematic review and meta-analysis was to determine and compare the golden ratio, golden percentage, and RED ratio values as seen in the maxillary anterior teeth of individuals from different countries.
    Material and methods: A systematic search was performed using PubMed/Medline, Google Scholar, and Web of Science to identify English and non-English language articles reporting the golden proportion, golden percentage, and RED proportion. The titles, full text, and abstracts were scanned by 2 investigators independently to identify articles that fulfilled the inclusion criteria. Using a meta-analysis software program, data extracted from each selected study were statistically combined using the random-effects model. Weighted mean differences, 95% confidence intervals, and heterogeneity were calculated for each measurement.
    Results: The search protocol resulted in a total of 752 articles, but only 26 articles fulfilling the inclusion criteria were included in the meta-analysis. While the sample size varied between 46 and 384 in the 26 analyzed studies, a total of 3786 individuals from 12 countries were evaluated. No similarity was found using the esthetic parameters determined in the populations to which the meta-analysis was applied.
    Conclusions: Mathematical formulas did not provide consistent results that would allow for their use as a standardized guide for creating natural looking smiles. Rather, dental esthetic ratios should be set based on the racial and ethnic character of a population.
    Language English
    Publishing date 2023-11-04
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 218157-5
    ISSN 1097-6841 ; 0022-3913
    ISSN (online) 1097-6841
    ISSN 0022-3913
    DOI 10.1016/j.prosdent.2023.09.032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ul III Zs.145: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Associations Between BLG, CSN3, DGAT1, GH, PIT1, and PRL Gene Polymorphisms and Milk Production Traits in Holstein Dairy Cows: A Meta-Analysis.

    Ozdemir, Memis / Motmain, Zekrullah / Ekinci, Kubra / Saygılı, Esranur

    Biochemical genetics

    2024  

    Abstract: The current meta-analysis was employed to combine the results of multiple studies into a single estimate related to B-LG, CSN3, DGAT1, PRL, GH, and PIT1 gene polymorphisms and their effects on milk production traits. The purpose of this meta-analysis was ...

    Abstract The current meta-analysis was employed to combine the results of multiple studies into a single estimate related to B-LG, CSN3, DGAT1, PRL, GH, and PIT1 gene polymorphisms and their effects on milk production traits. The purpose of this meta-analysis was to investigate associations between B-LG, CSN3, DGAT1, GH, PIT1, and PRLgene polymorphisms with milk production traits in Holstein dairy cows. An extensive search was done from 2002 to 2022 year. Statistical analyses were performed by using Stata 11.2 software. Genetic models viz codominant (AA vs. AB, AA vs. BB, and AB vs. BB), dominant (AA + AB vs. BB), recessive (AA vs. AB + BB), and completely over-dominant (AA + BB vs. AB) were applied. The results of meta-analysis of association between B-LG genotypes with milk yield where found a significant (P < 0.05) and with fat and protein contents (P < 0.01). In CSN3 polymorphisms of A/A and A/B genotypes had a significant effect on fat yield (P < 0.05) and protein content (P < 0.01). DGAT1 polymorphisms had a significant effect on milk yield, fat yield, protein yield (P < 0.05), with fat and protein contents showed high effect (P < 0.01). No significant association was detected between GH and milk traits (P > 0.05). PIT1 genotype polymorphisms had a significant effect on milk yield (P < 0.05) and protein content (P < 0.01). PRL genotype polymorphisms were significantly associated with milk yield (P < 0.05), fat content and protein yield (P < 0.01). The B-LG, DGAT1,CSN3 and PRL gene polymorphisms could be utilized as good markers to improve milk production traits in the Holstein cattle breed.
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2168-4
    ISSN 1573-4927 ; 0006-2928
    ISSN (online) 1573-4927
    ISSN 0006-2928
    DOI 10.1007/s10528-024-10706-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 578: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article ; Online: Genetic polymorphism of

    Fındık, Ismail / Özdemir, Memis

    Archives animal breeding

    2022  Volume 65, Issue 3, Page(s) 285–292

    Abstract: The aim of this study was to examine the polymorphic structures ... ...

    Abstract The aim of this study was to examine the polymorphic structures of
    Language English
    Publishing date 2022-08-04
    Publishing country Germany
    Document type Journal Article
    ISSN 2363-9822
    ISSN (online) 2363-9822
    DOI 10.5194/aab-65-285-2022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Online: Genetic polymorphism of Pit-1 and CSN3 genes in Holstein calves and its associations with calf birth weight

    Fındık, Ismail / Özdemir, Memis

    eISSN: 2363-9822

    2022  

    Abstract: The aim of this study was to examine the polymorphic structures of Pit-1 and CSN3 genes of Holstein calves bred in Gümüşhane province of Türkiye, to determine the distribution of genotype and allele gene frequencies, as well as examine the effects of ... ...

    Abstract The aim of this study was to examine the polymorphic structures of Pit-1 and CSN3 genes of Holstein calves bred in Gümüşhane province of Türkiye, to determine the distribution of genotype and allele gene frequencies, as well as examine the effects of determined polymorphisms on birth weight of calves. Hinf I polymorphisms of Pit-1 and CSN3 genes were identified in DNA isolated from blood samples of 100 Holstein calves used in the study, using the PCR-RFLP method. According to the Hardy–Weinberg genetic equilibrium test, it was observed that the distribution of genotype frequencies of Hinf I polymorphisms of Pit-1 genes in the studied population was in equilibrium, but not in equilibrium in terms of CSN3 gene location. The AA, AB, and BB genotype frequencies of the Pit-1 gene in the population were 13.4 %, 40.2 %, and 46.3 %, respectively; the frequency of the A allele was 0.34, while for B allele it was 0.66. The AA, AB, and BB genotype frequencies of the CSN3 gene were found to be 24.5 %, 36.7 %, and 38.8 %, respectively; the frequency of the A allele was 0.43 and the frequency of the B allele was 0.57. According to the Hardy–Weinberg genetic equilibrium test, the distribution of genotype frequencies was in equilibrium in the Pit-1 / Hinf I polymorphism, but not in the CSN3 / Hinf I polymorphism. A statistically significant relationship was not found between the genotypes of both polymorphic regions and calf birth weight.
    Subject code 630
    Language English
    Publishing date 2022-08-04
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: The relationships between performance traits and the bGH/Alu I and Pit-1/Hinf I polymorphisms in Holstein cows

    Ozdemir, Memis / Topal, Mehmet / Aksakal, Vecihi

    Indian journal of animal research. 2018 Feb., v. 52, no. 2

    2018  

    Abstract: Progress in genetic selection in livestock can be increased by marker asisted selection. The identification of favorable genetic markers is one of the most important stages in marker-asisted selection. In this study, it was aimed to determine the effects ...

    Abstract Progress in genetic selection in livestock can be increased by marker asisted selection. The identification of favorable genetic markers is one of the most important stages in marker-asisted selection. In this study, it was aimed to determine the effects of the bGH/AluI and Pit-1/HinfI polymorphisms on the production traits of organic reared cows. Genotyping was performed on total 245 Holstein cows, n=181 for Pit-1 gene and n=186 for bGH gene. Milk yields and some reproduction traits analyzed by analysis of variance using the general linear model procedure, and 703 production records from cows were used to. The results showed that neither the Pit-1/Hinf I nor bGH/Alu I polymorphisms affect the tested milk traits (p>0.05).
    Keywords Holstein ; analysis of variance ; animal research ; genes ; genetic selection ; genotyping ; linear models ; milk
    Language English
    Dates of publication 2018-02
    Size p. 186-191.
    Publishing place Agricultural Research Communication Centre
    Document type Article
    Note NAL-light
    ISSN 0976-0555
    DOI 10.18805/ijar.v0iOF.8495
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Determination of allele frequencies of growth hormone AluI polymorphism in Brown Swiss, Holstein, native East Anatolian Red and Turkish Grey breeds

    ÖZDEMIR, MEMIS

    International journal of dairy technology. 2011 Aug., v. 64, no. 3

    2011  

    Abstract: A total of 177 cattle of four breeds were genotyped for the bovine growth hormone (BGH)-AluI polymorphism by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The genotype and gene frequencies for each breed were determined ... ...

    Abstract A total of 177 cattle of four breeds were genotyped for the bovine growth hormone (BGH)-AluI polymorphism by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The genotype and gene frequencies for each breed were determined and tested to be in Hardy-Weinberg equilibrium. According to breeds, frequencies of allele L gene were 0.905 for Brown Swiss, 0.898 for Holstein, 0.976 for East Anatolian Red and 0.893 for Turkish Grey Breeds. The allele L was predominant and variant VV was not detected in the breeds studied. BGH-AluI genotypes were found to be in equilibrium within and among breeds.
    Keywords Brown Swiss ; Holstein ; gene frequency ; genotype ; somatotropin
    Language English
    Dates of publication 2011-08
    Size p. 350-352.
    Publishing place Blackwell Publishing Ltd
    Document type Article
    ZDB-ID 1363788-5
    ISSN 1364-727X
    ISSN 1364-727X
    DOI 10.1111/j.1471-0307.2011.00685.x
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 3092: Show issues

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  7. Book ; Online: Relationships between milk protein polymorphisms and production traits in cattle

    Ozdemir, Memis / Kopuzlu, Sinan / Topal, Mehmet / Bilgin, Omer Cevdet

    eISSN: 2363-9822

    a systematic review and meta-analysis

    2019  

    Abstract: Many researchers who have studied the relationships between milk protein polymorphisms and some yield traits in dairy cattle have reported incompatible results. In this study, in order to examine the overall relationships between milk protein genes known ...

    Abstract Many researchers who have studied the relationships between milk protein polymorphisms and some yield traits in dairy cattle have reported incompatible results. In this study, in order to examine the overall relationships between milk protein genes known as major genes ( CSN1S1, CSN2, CSN3 , and BLG ) and some yield traits (daily milk yield, lactation milk yield, fat yield, fat content, protein yield, and protein content), a meta-analysis was performed using some genetic models reported in the results of previous studies on cattle. The results suggest that the relationships of major milk protein genes with other factors should be studied using the codominant genetic model in general. Relationships among some CSN3 genotypes and fat yield, fat content, and protein content, and relationships between some BLG genotypes and daily milk yield, fat content, protein yield, and protein content were significant ( P < 0.05 ). No significant ( P > 0.05 ) relationships were found between these genotypes and other milk production traits. In addition, no significant ( P > 0.05 ) relationships between the CSN1S1 and CSN2 genotypes with the milk production traits examined were observed.
    Subject code 630
    Language English
    Publishing date 2019-01-07
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Determination of phylogenetic relationships of Turkish native cattle breeds with other cattle breeds using mitochondrial DNA D-loop sequence polymorphism

    Ozdemir, Memis / Dogru, Unsal

    Asian-Australasian journal of animal sciences. 2009 July, v. 22, no. 7

    2009  

    Keywords phylogeny ; breed differences ; cattle breeds ; mitochondrial DNA ; genetic polymorphism ; genetic variation ; sequence analysis ; nucleotide sequences ; Turkey (country)
    Language English
    Dates of publication 2009-07
    Size p. 955-961.
    Document type Article
    ZDB-ID 743671-3
    ISSN 1976-5517 ; 1011-2367
    ISSN (online) 1976-5517
    ISSN 1011-2367
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 4878: Show issues

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  9. Article: Determination of allele frequencies of growth hormone AluI polymorphism in Brown Swiss, Holstein, native East Anatolian Red and Turkish Grey breeds

    ÖZDEMIR, MEMIS

    International journal of dairy technology

    Volume v. 64,, Issue no. 3

    Abstract: A total of 177 cattle of four breeds were genotyped for the bovine growth hormone (BGH)-AluI polymorphism by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The genotype and gene frequencies for each breed were determined ... ...

    Abstract A total of 177 cattle of four breeds were genotyped for the bovine growth hormone (BGH)-AluI polymorphism by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The genotype and gene frequencies for each breed were determined and tested to be in Hardy-Weinberg equilibrium. According to breeds, frequencies of allele L gene were 0.905 for Brown Swiss, 0.898 for Holstein, 0.976 for East Anatolian Red and 0.893 for Turkish Grey Breeds. The allele L was predominant and variant VV was not detected in the breeds studied. BGH-AluI genotypes were found to be in equilibrium within and among breeds.
    Keywords Holstein ; genotype ; somatotropin ; gene frequency ; Brown Swiss
    Language English
    Document type Article
    ISSN 1364-727X
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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