an-integrated-micro-device-system-for-coral-growth-and-monitoring

An Integrated Micro-Device System for Coral Growth and Monitoring

Corals are fundamental organisms in marine and coastal ecosystems. With the advancement of coral protection research in recent years, precise control of ...

Southeast University

Aneuploidy of mouse chromosome 8 induced by a Chinese medicinal herb, Tripterygium hypoglaucum (level) Hutch (THH) was investigated by fluorescence in situ hybridization (FISH) in vivo. Male mice were treated with THH (single i.p. injection) at doses of 120, 240 and 480 mg/kg. Colchicine (COL, 1.5 mg/kg i.p.) was used as a positive control. Bone marrow cells and epididymal sperm were collected 24 h and 22 days after treatment, respectively. Chromosome 8 aneuploidies induced by THH in bone marrow cells and sperm were determined by FISH with a biotin-16-dUTP labelled DNA probe corresponding to the centromeric region of chromosome 8. The hybridized probe was detected with avidin-FITC. The frequencies of trisomy 8 in bone marrow cells were 0.16% in the solvent control group, 0.39% in the COL-treated group and 0.33, 0.41 and 0.41% in the THH-treated groups, respectively. The frequencies of disomy 8 sperm were 0.11% in the solvent control group, 0.27% in the COL-treated group and 0.23, 0.27 and 0.27% in the THH-treated groups, respectively. The experiment showed that induced aneuploidy frequencies were higher in bone marrow cells than in sperm with COL and the two higher doses of THH (P < 0.05). All groups were significantly different from the corresponding solvent controls (P < 0.01-0.001), but there was no dose-related increase in either cell type. Considering the present results together with our previous studies, it appears that THH is a potent mammalian aneugen which may pose a genetic risk to human patients.

Tripterygium hypoglaucum (level) Hutch induces aneuploidy of chromosome 8 in mouse bone marrow cells and sperm.

The Temporal Decline of Social Support among Colorectal Cancer Survivors: First Year Prospective Study.

Fruit of Phyllanthus emblica Linn. (PE) is widely consumed as a functional food and used as a folk medicine due to its remarkable nutritional and pharmacological effects. Mitomycin C (MMC) and cisplatin (cDDP) are the most widely used forms of chemotherapeutic drug, but their clinical use is limited by their genotoxicity to normal cells. We aimed to determine whether PE has potential to reduce the genotoxicity, while improving the anticancer effect, of MMC and cDDP.

Phyllanthus emblica Linn. fruit extract potentiates the anticancer efficacy of mitomycin C and cisplatin and reduces their genotoxicity to normal cells in vitro.

Methodologies for coral polyps culture and real-time monitoring are important in investigating the effects of the global environmental changes on coral reefs and marine biology. However, the traditional cultivation method is limited in its ability to provide a rapid and dynamic microenvironment to effectively exchange the chemical substances and simulate the natural environment change. Here, an integrated microdevice with continuous perfusion and temperature-control in the microenvironment was fabricated for dynamic individual coral polyps culture. For a realistic mimicry of the marine ecological environment, we constructed the micro-well based microfluidics platform that created a fluid flow environment with a low shear rate and high substance transfer, and developed a sensitive temperature control system for the long-term culture of individual coral polyps. This miniaturized platform was applied to study the individual coral polyps in response to the temperature change for evaluating the coral death caused by El Nino. The experimental results demonstrated that the microfluidics platform could provide the necessary growth environment for coral polyps as expected so that in turn the biological activity of individual coral polyps can quickly be recovered. The separation between the algae and host polyp cells were observed in the high culture temperature range and the coral polyp metabolism was negatively affected. We believe that our culture platform for individual coral polyps can provide a reliable analytical approach for model and mechanism investigations of coral bleaching and reef conservation.

Jinglun Zhao

State Key Laboratory of Digital Medical Engineering,
School of Biological Science & Medical Engineering,
State Key Laboratory of Digital Medical Engineering, School of Biological Science & Medical Engineering

Southeast University

An Integrated Micro-Device System for Coral Growth and Monitoring

Jinglun Zhao

.css-o250i3{font-size:18px;font-family:Open Sans,sans-serif;line-height:21.6px;}State Key Laboratory of Digital Medical Engineering,School of Biological Science & Medical Engineering,State Key Laboratory of Digital Medical Engineering, School of Biological Science & Medical Engineering

Southeast University

An Integrated Micro-Device System for Coral Growth and Monitoring

State Key Laboratory of Digital Medical Engineering,
School of Biological Science & Medical Engineering,
State Key Laboratory of Digital Medical Engineering, School of Biological Science & Medical Engineering