Ahmad Ahmadi

ORCID: 0000-0003-0276-9027
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About
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Research Areas
  • Animal Nutrition and Physiology
  • Reproductive Biology and Fertility
  • Genetic and phenotypic traits in livestock
  • Ruminant Nutrition and Digestive Physiology
  • Glutathione Transferases and Polymorphisms
  • Parkinson's Disease Mechanisms and Treatments
  • Moringa oleifera research and applications
  • Animal Genetics and Reproduction
  • Phytase and its Applications
  • Reproductive Physiology in Livestock
  • Plant Micronutrient Interactions and Effects
  • Livestock and Poultry Management
  • Kruppel-like factors research
  • Plant Physiology and Cultivation Studies
  • Carcinogens and Genotoxicity Assessment
  • Renal and related cancers
  • Genetics and Plant Breeding
  • Livestock Management and Performance Improvement
  • Rabbits: Nutrition, Reproduction, Health
  • Genomics, phytochemicals, and oxidative stress
  • Agricultural pest management studies
  • Postharvest Quality and Shelf Life Management
  • Politics and Conflicts in Afghanistan, Pakistan, and Middle East
  • Pharmacogenetics and Drug Metabolism
  • Acute Lymphoblastic Leukemia research

Bu-Ali Sina University
2015-2025

University of Denver
2025

Ahvaz Jundishapur University of Medical Sciences
2024

Oregon State University
2022-2023

Bridge University
2022

K.N.Toosi University of Technology
2022

University of Tehran
2012-2020

Ludwig-Maximilians-Universität München
2014-2018

Fracture Analysis Consultants (United States)
2017

Technical University of Munich
2008-2014

To investigate the associations between Parkinson's disease and other degenerative parkinsonian syndromes environmental factors in five European countries.A case-control study of 959 prevalent cases parkinsonism (767 with disease) 1989 controls Scotland, Italy, Sweden, Romania Malta was carried out. Cases were defined using United Kingdom Disease Society Brain Bank criteria, those drug-induced or vascular dementia excluded. Subjects completed an interviewer-administered questionnaire about...

10.1136/oem.2006.027003 article EN Occupational and Environmental Medicine 2007-03-01

To investigate associations of Parkinson's disease (PD) and parkinsonian syndromes with polymorphic genes that influence metabolism either foreign chemical substances or dopamine to seek evidence gene-environment interaction effects modify risk.A case-control study 959 prevalent cases parkinsonism (767 PD) 1989 controls across five European centres. Occupational hygienists estimated the average annual intensity exposure solvents, pesticides metals, (iron, copper, manganese), blind status....

10.1136/oem.2006.032078 article EN Occupational and Environmental Medicine 2007-04-20

Eighty layer hens were assigned in a completely randomized design to four dietary treatments containing zinc sulphate or organic as Albino-Zn two levels of 25 50 ppm. Feed intake was expressed on per hen basis. Daily egg collection hen-day Eggs weighed calculate mass. conversion ratio calculated feed consumed Also all eggs produced days 14, 28 and 42 collected used for quality parameters. Albumen height measured HU calculated. The yolk dried shell then albumen weight There no effect source...

10.3923/pjbs.2007.3476.3478 article EN Pakistan Journal of Biological Sciences 2007-09-15

ABSTRACT The aim of this work was to study the growth performance, gastrointestinal tract traits, and cecal short chain fatty acid (SCFA) concentration in response insoluble fiber two broiler strains from 0 42 days age. experiment had a completely randomized design (CRD) with four treatments replicates (17 birds per replicate) arranged as 2 × factorial (Ross 308 vs. Cobb 500) processed wheat straw (PWS) levels (0 3%). Average daily feed intake (ADFI) (p<0.0001), body weight gain (BWG)...

10.1590/1806-9061-2024-1984 article EN cc-by Brazilian Journal of Poultry Science 2025-01-01

Executive functions (EF) lay the foundation for healthy development. However, few reliable and valid measures of EF have been developed among children in less countries such as Iran. The present study addressed this gap by examining factor structure, score variation, psychometric properties a short task, Head-Toes-Knees-Shoulders (HTKS), from two metropolitan cities (Isfahan Tehran) Participants (N = 693; 58% male; Mage 5.88 years) were recruited through convenience sampling approach tested...

10.1080/09297049.2025.2481951 article EN Child Neuropsychology 2025-04-07

Gene codings for glutathione S-transferase T1 (GSTT1) and M1 (GSTM1) are polymorphic in humans with null genotypes present approximately 20 50%, respectively. A significant excess of homozygous GSTT1 GSTM1 has been demonstrated among individuals certain types cancers. This finding suggests that may play a role tumour susceptibility. However, reports concerning colorectal cancer susceptibility controversial. In the study, we used multiplex polymerase chain reaction (PCR) approach to identify...

10.1002/(sici)1097-0215(19990420)84:2<135::aid-ijc7>3.0.co;2-c article EN International Journal of Cancer 1999-04-20

The objective of the present study is to estimate genetic parameters birth weight (BW, n = 3005), weaning (WW, 2800), 6 months (6 MW, 2600), 9 (9 1990) and yearling (YW, 1450) Mehraban sheep, collected during 1995 - 2007 at sheep Breeding Station in Hamedan province, Iran. (Co)variance components were estimated with univariate multivariate animal model using restricted maximum likelihood (REML) procedure. Effect herd, lamb's sex, year significant on all traits (P < 0.05). estimates direct...

10.5897/ajb09.1313 article EN AFRICAN JOURNAL OF BIOTECHNOLOGY 2010-08-31

Abstract The present study aimed to investigate the presence of polymorphisms at four known genes controlling ovine prolificacy i.e. BMP15, GDF9, BMPR1B and B4GALNT2 in a sample 115 Iranian Mehraban ewes their association with litter size (LS) lambs’ birth weight (BW) traits. Using Sanger sequencing exons polymorphism specific genotyping, ten SNPs (Single Nucleotide Polymorphisms) were observed only two genes, GDF9 BMPR1B. Seven found gene on chromosome 5. Among them, six already described...

10.2478/aoas-2018-0014 article EN Annals of Animal Science 2018-05-23

Exposure to organic solvents increases the risk of neuropsychiatric disability or chronic toxic encephalopathy (CTE). Polymorphisms in biotransformation xenobiotics and may influence individual susceptibility develop effects. In this study problem whether there could be any association between glutathione S-transferase M1 (GSTM1) null genotype for CTE, with regard solvent exposure, was investigated.Sixty patients referred a clinic because some degree psychiatric neurological symptoms, as...

10.5271/sjweh.154 article EN cc-by Scandinavian Journal of Work Environment & Health 1996-10-01

Sperm motility and sperm production as well organic inorganic components present in the seminal plasma were measured at different time periods of spermiation during spawning season order to evaluate semen quality Caspian brown trout, Salmo trutta caspius. For such evaluation, males divided into four groups based on date spermiation: group A (pre-mature broodstocks), B C (mid-mature D (late-mature broodstocks). Our results showed that trout produces variable depending period spermiation. In...

10.17221/1696-cjas article EN cc-by-nc Czech Journal of Animal Science 2010-10-31

There is an increasing interest in how oxidative stress can cause cells to go into apoptosis both normal ageing and neurodegenerative disorders. Previous research has implicated insulin-like growth factor-1 (IGF-1) as being involved the pathogenesis Alzheimer’s disease (AD) by protecting neurons through reducing neuronal susceptibility stress. IGF-1 receptor (IGF-1R) polymorphisms alter cerebral systemic levels of may function receptor. We genotyped IGF-1R gene polymerase chain reaction...

10.1159/000095803 article EN Dementia and Geriatric Cognitive Disorders 2006-01-01

Augmented reality (AR) for preoperative diagnostics and planning, intra operative navigation postoperative follow-up examination has been a topic of intensive research over the last two decades. However, clinical studies showing AR technology integrated into real environment workflow are still rare. The incorporation an system as standard tool not presented so far. This paper reports on strategies intermediate results ARAV - augmented aided vertebroplasty project that initiated to make based...

10.1109/ismar.2008.4637348 article EN 2008-09-01

After pubertal, cohort of small antral follicles enters to gonadotrophin-sensitive development, called recruited follicles. This study was aimed identify candidate genes in follicular cyclic recruitment via analysis protein-protein interaction (PPI) network. Differentially expressed (DEGs) ovine granulosa cells between and luteal phases were accumulated among gene/protein symbols the Ensembl annotation. Following directed graphs, PTPN6 FYN have highest indegree outdegree, respectively....

10.1186/s40781-018-0171-y article EN cc-by-nc Journal of Animal Science and Technology 2018-05-04

The BMP15 gene is a growth factor and member of the transforming β (TGFβ) superfamily, specifically expressed in oocytes. In present study, polymorphism exon 1 was studied using single strand conformational (SSCP) direct DNA sequencing methods 170 Mehraban Lori sheep ewes. A 231-bp fragment amplified by PCR reactions. Two genotypes (GG AG) with new point mutation at position 121 bp (c.379G>A reference GenBank number AF236078.1 sequence), deducing an amino acid exchange codified sequence...

10.1080/10495398.2016.1182539 article EN Animal Biotechnology 2016-08-10
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