Results 61 to 70 of about 12,360 (230)

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

Integrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding   +5 more
wiley   +1 more source

Selectivity and potency of microcystin congeners against OATP1B1 and OATP1B3 expressing cancer cells. [PDF]

PLoS ONE, 2014
Microcystins are potent phosphatase inhibitors and cellular toxins. They require active transport by OATP1B1 and OATP1B3 transporters for uptake into human cells, and the high expression of these transporters in the liver accounts for their selective ...
Timo H J Niedermeyer, Abigail Daily, Monika Swiatecka-Hagenbruch, Jeffrey A Moscow   +3 more
doaj   +1 more source

Microcystin-LR incorporated into colonic cells through probenecid-sensitive transporters leads to upregulated MCP-1 expression induced by JNK activation

Toxicology Reports, 2022
Harmful algae that inhabit eutrophic lakes produce cyanotoxic microcystins. Therefore, the relationship between chronic exposure to microcystins via drinking water and organ disorders has been investigated.
Yoshihito Koto, Hideaki Kawahara, Koichi Kurata, Keisuke Yoshikiyo, Ayumi Hashiguchi, Kunihiro Okano, Norio Sugiura, Kazuya Shimizu, Hidehisa Shimizu   +8 more
doaj   +1 more source

Studies on the immunosuppressive effects and detection of naturally-occuring toxins [PDF]

, 2012
Episodes of toxin-producing phytoplankton occur worldwide, causing both animal and human fatalities. Toxicity occurs through consumption of phycotoxins, including azaspiracid, which accumulate in filter-feeding shellfish. Microcystins are hepatotoxins,
Stack, Edwina C.
core  

Effects of gibberellin A(3) on growth and microcystin production in Microcystis aeruginosa (cyanophyta) [PDF]

, 2008
Environmental. factors that affect the growth and microcystin production of microcystis have received worldwide attention because of the hazards microcystin poses to environmental safety and public health.
Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, 7 S Donghu Rd, Wuhan 430072, Hubei Province, Peoples R China, Li, Genbao, Chang, Fengyi, Kang, Lijuan, Pan, Xiaojie, Liu, Yongding, Li, Dunhai   +6 more
core   +1 more source

Nutrient disturbance in a shallow aquaculture pond impacts Microcystis gene expression but does not impact bacterial community function during bloom conditions

Journal of Phycology, EarlyView.
Abstract Cyanobacterial harmful algal blooms (cHABs) are worldwide issues. Reduced nitrogen forms (ammonium and urea) have recently been measured in freshwater systems at concentrations not previously recorded. These reduced nitrogen forms have been shown to favor the proliferation of harmful cyanobacteria.
Matthew F. Gladfelter, Hunter R. Baylous, Alan E. Wilson, Morgan M. Steffen   +3 more
wiley   +1 more source

Biodegradation of [D-Leu1] microcystin-LR by a bacterium isolated from sediment of Patos Lagoon estuary, Brazil

Journal of Venomous Animals and Toxins including Tropical Diseases, 2015
Background Toxic cyanobacterial blooms are recurrent in Patos Lagoon, in southern Brazil. Among cyanotoxins, [D-Leu1] microcystin-LR is the predominant variant whose natural cycle involves water and sediment compartments. This study aimed to identify and
Gilmar AF Lemes, Luiza W Kist, Mauricio R Bogo, João S Yunes   +3 more
doaj   +1 more source

The Use of Sodium Hypochlorite at Point-of-Use to Remove Microcystins from Water Containers

Toxins, 2021
Most conventional water treatment plants are not sufficiently equipped to treat both intracellular and extracellular Microcystins in drinking water. However, the effectiveness of sodium hypochlorite in removing Microcystin in containers at the point-of ...
Matodzi Michael Mokoena, Lutendo Sylvia Mudau, Matlou Ingrid Mokgobu, Murembiwa Stanley Mukhola   +3 more
doaj   +1 more source

Fear of grazing rivals the toxin‐inducing effects of nutrients in two marine harmful algae – a meta‐analysis

Biological Reviews, Volume 101, Issue 4, Page 1904-1921, August 2026.
ABSTRACT One of the major subfields of chemical ecology is the study of toxins and how they mediate interactions between organisms. Toxins produced by harmful algae (phycotoxins) impact a wide variety of organisms connected to the marine food web. Significant research efforts have thus aimed to identify the ecological and evolutionary drivers behind ...
Milad Pourdanandeh, Erik Selander
wiley   +1 more source

STUDIES ON THE TOXIC EFFECTS OF FILTERED CYANOBACTERIA CULTURE MEDIA OF TWO DIFFERENT STRAINS (MICROCYSTIN-PRODUCING AND MICROCYSTIN-FREE) OF MICROCYSTIS AERUGINOSA ON DAPHNIA MAGNA [PDF]

, 2008
Negative effects of cyanobacteria on crustacean zooplankton Daphnia can be documented widely and several main explainary causes have been proposed ( i.e., toxicity, poor nutritional value, bad taste, and morphology).
Cheng Shui-Ping, Zhang Shi-Yang (zhangshiyang@ihb.ac.cn), Zhang Shi-Yang, He Feng, Zhuang De-Hui, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China, Wu Zhen-Bin (wuzb@ihb.ac.cn)   +6 more
core