Chandra Shekhar Pareek

Prof. Chandra Shekhar Pareek

Nicolaus Copernicus University
orcid
Professor, NCU, Torun, Poland

Research Focus & Metrics

Academic Career Length

29Years (1998-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 June 2011 in Journal of Applied Genetics
Verified
Journal Article
Open access
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CPChandra Shekhar Pareek
Chandra Shekhar Pareek
RSRafal Smoczynski
Rafal Smoczynski
Andrzej TretynAndrzej Tretyn
Andrzej Tretyn
The high-throughput - next generation sequencing (HT-NGS) technologies are currently the hottest topic in the field of human and animals genomics researches, which can produce over 100 times more data compared to the most sophisticated capillary sequencers based on the Sanger method. With the ongoing developments of high throughput sequencing machines and advancement of modern bioinformatics tools at unprecedented pace, the target goal of sequencing individual genomes of living organism at a cost of $1,000 each is seemed to be realistically feasible in the near future. In the relatively short time frame since 2005, the HT-NGS technologies are revolutionizing the human and animal genome researches by analysis of chromatin immunoprecipitation coupled to DNA microarray (ChIP-chip) or sequencing (ChIP-seq), RNA sequencing (RNA-seq), whole genome genotyping, genome wide structural variation, de novo assembling and re-assembling of genome, mutation detection and carrier screening, detection of inherited disorders and complex human diseases, DNA library preparation, paired ends and genomic captures, sequencing of mitochondrial genome and personal genomics. In this review, we addressed the important features of HT-NGS like, first generation DNA sequencers, birth of HT-NGS, second generation HT-NGS platforms, third generation HT-NGS platforms: including single molecule Heliscope™, SMRT™ and RNAP sequencers, Nanopore, Archon Genomics X PRIZE foundation, comparison of second and third HT-NGS platforms, applications, advances and future perspectives of sequencing technologies on human and animal genome research.

Verified
Journal Article
Open access
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KLKamila Liput
Kamila Liput
ALAdam Lepczyński
Adam Lepczyński
MOMagdalena Ogłuszka
Magdalena Ogłuszka
ANAgata Nawrocka
Agata Nawrocka
EPEwa Poławska
Ewa Poławska
MPMariusz Pierzchała
Mariusz Pierzchała
The dietary recommendation encourages reducing saturated fatty acids (SFA) in diet and replacing them with polyunsaturated fatty acids (PUFAs) n–3 (omega–3) and n–6 (omega–6) to decrease the risk of metabolic disturbances. Consequently, excessive n–6 PUFAs content and high n–6/n–3 ratio are found in Western-type diet. The importance of a dietary n–6/n–3 ratio to prevent chronic diseases is linked with anti-inflammatory functions of linolenic acid (ALA, 18:3n–3) and longer-chain n–3 PUFAs. Thus, this review provides an overview of the role of oxylipins derived from n–3 PUFAs and oxylipins formed from n–6 PUFAs on inflammation. Evidence of PUFAs’ role in carcinogenesis was also discussed. In vitro studies, animal cancer models and epidemiological studies demonstrate that these two PUFA groups have different effects on the cell growth, proliferation and progression of neoplastic lesions.

1 December 2008 in Journal of Applied Genetics
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Journal Article
Closed access
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PLPaweł Lisowski
Paweł Lisowski
MPMariusz Pierzchała
Mariusz Pierzchała
JGJoanna Gościk
Joanna Gościk
CPChandra Shekhar Pareek
Chandra Shekhar Pareek
LZLech Zwierzchowski
Lech Zwierzchowski

1 January 2020 in Theriogenology
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Journal Article
Closed access
LFL. Fraser
L. Fraser
PBPaweł Brym
Paweł Brym
CPChandra Shekhar Pareek
Chandra Shekhar Pareek
MMM. Mogielnicka-Brzozowska
M. Mogielnicka-Brzozowska
ŁPŁ. Paukszto
Ł. Paukszto
Kacper ŻukowskiKacper Żukowski
Kacper Żukowski

16 December 2022 in Cells
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Journal Article
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KMKlaudia Miętkiewska
Klaudia Miętkiewska
Paweł Kordowitzki, Dipl. ECARPaweł Kordowitzki, Dipl. ECAR
Paweł Kordowitzki, Dipl. ECAR
CPChandra Shekhar Pareek
Chandra Shekhar Pareek
Heat stress is a major threat to cattle reproduction today. It has been shown that the effect of high temperature not only has a negative effect on the hormonal balance, but also directly affects the quality of oocytes, disrupting the function of mitochondria, fragmenting their DNA and changing their maternal transcription. Studies suggest that the induction of HSP70 may reduce the apoptosis of granular layer cells caused by heat stress. It has been shown that the changes at the transcriptome level caused by heat stress are consistent with 46.4% of blastocyst development disorders. Cows from calves exposed to thermal stress in utero have a lower milk yield in their lifetime, exhibit immunological disorders, have a lower birth weight and display a shorter lifespan related to the expedited aging. In order to protect cow reproduction, the effects of heat stress at the intracellular and molecular levels should be tracked step by step, and the impacts of the dysregulation of thermal homeostasis (i.e., hyperthermy) should be taken into account.

Verified
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KKKatarzyna Kępka
Katarzyna Kępka
KCKatarzyna Chałaśkiewicz
Katarzyna Chałaśkiewicz
MOMagdalena Ogłuszka
Magdalena Ogłuszka
MBMateusz Borkowski
Mateusz Borkowski
ALAdam Lepczyński
Adam Lepczyński
MPMariusz Pierzchała
Mariusz Pierzchała
Aflatoxins, toxic secondary metabolites produced primarily by Aspergillus flavus and Aspergillus parasiticus, pose a significant global health concern due to their frequent presence in crops, food, and feed—especially under climate change conditions. This review addresses the growing threat of aflatoxins by analyzing recent advances in detection and mitigation. A comprehensive literature review was conducted, focusing on bioremediation, physical and chemical detoxification, and fungal growth inhibition strategies. The occurrence of aflatoxins in water systems was also examined, along with current detection techniques, removal processes, and regulatory frameworks. Emerging technologies such as molecular diagnostics, immunoassays, biosensors, and chromatographic methods are discussed for their potential to improve monitoring and control. Key findings highlight the increasing efficacy of integrative approaches combining biological and technological solutions and the potential of AI-based tools and portable devices for on-site detection. Intelligent packaging and transgenic crops are also explored for their role in minimizing contamination at the source. Overall, this review emphasizes the importance of continued interdisciplinary research and the development of sustainable, adaptive strategies to mitigate aflatoxin risks, thereby supporting food safety and public health in the face of environmental challenges.