Junzeng Zhang

ORCID: 0000-0003-0118-0317
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Research Areas
  • Seaweed-derived Bioactive Compounds
  • Cancer Treatment and Pharmacology
  • Adipokines, Inflammation, and Metabolic Diseases
  • Regulation of Appetite and Obesity
  • Microbial Natural Products and Biosynthesis
  • Marine and coastal plant biology
  • Biological Activity of Diterpenoids and Biflavonoids
  • Adipose Tissue and Metabolism
  • Natural Antidiabetic Agents Studies
  • Synthetic Organic Chemistry Methods
  • Alzheimer's disease research and treatments
  • Echinoderm biology and ecology
  • Plant-Microbe Interactions and Immunity
  • Berberine and alkaloids research
  • Marine Sponges and Natural Products
  • Polysaccharides Composition and Applications
  • Traditional Chinese Medicine Analysis
  • Fatty Acid Research and Health
  • Chemical and Physical Properties in Aqueous Solutions
  • Phytoestrogen effects and research
  • Protein Hydrolysis and Bioactive Peptides
  • Genetics, Aging, and Longevity in Model Organisms
  • Plant Stress Responses and Tolerance
  • Plant Toxicity and Pharmacological Properties
  • Ionic liquids properties and applications

National Research Council Canada
2014-2024

Dalhousie University
2018

Culture Resource
2016

Health PEI
2016

University of Prince Edward Island
2011-2014

National Academies of Sciences, Engineering, and Medicine
2011

Chinese Academy of Medical Sciences & Peking Union Medical College
1998-2009

Dalian Institute of Chemical Physics
2009

Chinese Academy of Sciences
2009

Henan University of Traditional Chinese Medicine
2007

Abstract Background We have previously shown that lipophilic components (LPC) of the brown seaweed Ascophyllum nodosum (ANE) improved freezing tolerance in Arabidopsis thaliana . However, mechanism(s) this induced stress is largely unknown. Here, we investigated LPC changes transcriptome and metabolome A. undergoing stress. Results Gene expression studies revealed accumulation proline was mediated by an increase synthesis genes P5CS1 P5CS2 a marginal reduction dehydrogenase ( ProDH ) gene....

10.1186/1471-2164-13-643 article EN cc-by BMC Genomics 2012-11-21

We screened seaweed species from Atlantic Canada for antidiabetic activity by testing extracts α-glucosidase inhibitory effect and glucose uptake stimulatory activity. An aqueous ethanolic extract of Ascophyllum nodosum was found to be active in both assays, inhibiting rat intestinal (IC 50 = 77 μg/mL) stimulating basal into 3T3-L1 adipocytes during a 20-minute incubation about 3-fold (at 400 μg/mL extract). Bioassay-guided fractionation the A. showed that inhibition associated with...

10.1139/y07-105 article EN Canadian Journal of Physiology and Pharmacology 2007-11-01

Gastrointestinal microbial communities are diverse and composed of both beneficial pathogenic groups. Prebiotics, such as digestion-resistant fibers, influence the composition gut microbiota, can contribute to improvement host health. The red seaweed Chondrus crispus is rich in dietary fiber oligosaccharides, however its prebiotic potential has not been studied date.Prebiotic effects were investigated with weaning rats fed a cultivated C. crispus-supplemented diet. Comparison standards...

10.1186/s12906-015-0802-5 article EN cc-by BMC Complementary and Alternative Medicine 2015-08-13

Liuwei Dihuang (LWDH), a classic Chinese medicinal formula, has been used to improve or restore declined functions related aging and geriatric diseases, such as impaired mobility, vision, hearing, cognition memory. Here, we report on the effect possible mechanisms of LWDH mediated protection β-amyloid (Aβ) induced paralysis in Caenorhabditis elegans using ethanol extract (LWDH-EE) water (LWDH-WE). Chemical profiling quantitative analysis revealed presence different levels bioactive...

10.1371/journal.pone.0043990 article EN cc-by PLoS ONE 2012-08-30

Abstract Pseudoalteromonas is a globally distributed marine-associated genus that can be found in broad range of aquatic environments, including association with macroalgal surfaces where they may take advantage these rich sources polysaccharides. The metabolic systems confer the ability to metabolize this abundant form photosynthetically fixed carbon, however, are not yet fully understood. Through genomics, transcriptomics, microbiology, and specific structure-function studies pathway...

10.1038/s42003-019-0721-y article EN cc-by Communications Biology 2019-12-19

Japanese knotweed (Fallopia japonica, also known as Polygonum cuspidatum) is a common invasive plant species on Prince Edward Island (PEI), Canada, whereas it has been used in Chinese medicine and more recently raw material for extracting resveratrol. This paper reports the quantification of resveratrol, polydatin, emodin, physcion roots, stems, leaves samples from PEI British Columbia (BC), nine provinces China, by ultraperformance liquid chromatography (UPLC). The results showed that root...

10.1021/jf4019239 article EN Journal of Agricultural and Food Chemistry 2013-06-06

We investigated the metabolic effects of betaine (Bet) supplementation on CTP:phosphoethanolamine cytidylyltransferase/Pcyt2 heterozygous mice (HET). HET received either no treatment or were allowed access to 1% Bet supplemented water for 8 weeks. As we previously showed with choline (Cho), improved hypertriglyceridemia and hepatic steatosis in HET. The protection from obesity associated reduced increased lipid breakdown adipocytes was attributed energy requirements metabolism elimination...

10.3389/fnut.2018.00061 article EN cc-by Frontiers in Nutrition 2018-07-10

The present study was carried out to determine the effect of berberine on glucose homeostasis and several biomarkers associated with insulin sensitivity in male Wistar rats intraperitoneal injection streptozotocin (STZ)-induced diabetes. Rats fasting blood 16.7 mmol/L after 2 weeks STZ were divided into two groups. One group used as diabetic control another treated by gavage feeding 100 mg/kg/d water containing 0.5% carboxymethyl cellulose. A without receiving normal control. After 7 weeks,...

10.5402/2011/519371 article EN ISRN Endocrinology 2011-11-20
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