Showing posts with label Virus. Show all posts
Showing posts with label Virus. Show all posts

Saturday, May 4, 2019

Elderberry compounds could help minimize flu symptoms, study suggests

Compounds from elderberries can directly inhibit the virus's entry and replication in human cells, and can help strengthen a person's immune response to the virus.
Folk medicines and herbal products have been used for millennia to combat a whole range of ailments, at times to the chagrin of modern scientists who have struggled to explain their medicinal benefits.
However, a recent study by a group of Chemical and Biomlolecular Engineering researchers from the University of Sydney's Faculty of Engineering and IT has determined exactly how a popular ancient remedy, the elderberry fruit, can help the fight against influenza.
Although elderberry's flu-fighting properties have long been observed, the group performed a comprehensive examination of the mechanism by which phytochemicals from elderberries combat influenza infections.
"What our study has shown is that the common elderberry has a potent direct antiviral effect against the flu virus," said Dr Golnoosh Torabian.
"It inhibits the early stages of an infection by blocking key viral proteins responsible for both the viral attachment and entry into the host cells."
The researchers used commercially farmed elderberries which were turned into a juice serum and were applied to cells before, during and after they had been infected with the influenza virus.
The phytochemicals from the elderberry juice were shown to be effective at stopping the virus infecting the cells, however to the surprise of the researchers they were even more effective at inhibiting viral propagation at later stages of the influenza cycle when the cells had already been infected with the virus.
"This observation was quite surprising and rather significant because blocking the viral cycle at several stages has a higher chance of inhibiting the viral infection”.
In addition to that, we identified that the elderberry solution also stimulated the cells to release certain cytokines, which are chemical messengers that the immune system uses for communication between different cell types to coordinate a more efficient response against the invading pathogen.
Otherwise known as sambucus nigra, the black elderberry is a small, antioxidant rich fruit common to Europe and North America that is still commonly consumed as a jam or wine. For medicinal benefits, elderberry extract is available commercially in tablet or syrup form.
The influenza virus is one of the leading causes of mortality worldwide, affecting nearly 10 per-cent of the world population and contributing to one million deaths annually.
Source: University of Sydney

Virology and Microbiology Congress 2019 organizing committee invites the participants across the globe to attend its annual flagship conference, 2nd World Congress on Virology and Microbiology which is going to take place during September 09-10, 2019 at Bangkok, Thailand.
Organized around the theme "Recent Advances in Virology and Microbiology towards Healthier Life", Virology and Microbiology Congress 2019 is comprised of various sessions designed to offer comprehensive symposiums that address current Advances in the field of Virology and Microbiology and provides fantastic opportunity to network with your peers from Academia and Pharmaceutical industry.
Do not miss the best Keynote lectures, Plenary talks, Workshops, and Networking tour.

Wednesday, April 24, 2019

Dengue mosquito is Queensland's biggest threat for spreading Zika virus


Researchers at QUT and QIMR Berghofer Medical Research Institute have found that the dengue fever mosquito common to north and central Queensland poses the greatest danger of spreading the Zika virus in Australia.

The researchers showed that not only was the dengue mosquito effective at transmitting Zika, but also that the virus was in the mosquitoes' reproductive organs. This finding suggests that Zika could persist in mosquito populations by females passing it to their offspring.
The researchers' study, Vector competence of Australian Aedes aegypti and Aedes albopictus for an epidemic strain of Zika virus, has been published in PLOS Neglected Tropical Diseases.
Key points:
  • People can contract Zika from the bite of a female mosquito carrying the virus
  • A woman infected with Zika can pass the virus to her unborn child causing neurological problems including microcephaly, when the brain does not develop properly and the baby has a smaller than normal head
  • While more than 50 cases of Zika have been reported in Australia, all were contracted overseas
The dengue mosquito is found in northern, central and southern parts of the state, while the Asian Tiger mosquito is currently only in the Torres Strait.
The researchers tested a strain of Zika from the Asian lineage that caused microcephaly during the 2016 epidemic in Brazil.
"At three, seven and 14 days after the mosquitoes were infected with Zika, we tested their saliva to see if they could pass on the virus through a bite," she said.
"We concluded that the dengue mosquito is the main danger for spreading Zika.
"We found 50-60 per cent of the dengue mosquitoes could effectively transmit the virus 14 days after becoming infected, compared to 10 per cent of the Asian Tiger mosquitoes."
Dr Frentiu said the discovery of Zika in the ovaries of the dengue mosquitoes indicated another potential route of infection transmission through mosquito populations.
"This has also been observed recently in field specimens collected in Brazil," she said. "Aedes aegypti eggs were collected and hatched and the larvae tested, and Zika was found in the larvae.
"It is possible that if infected larvae were able to reach maturity still infected with Zika, they could then pass the virus to humans. This is an area where further research is needed."
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Source: Queensland University of Technology


To know more about latest research's come and join us at 2nd World Congress on Virology and Microbiology which is going to take place during September 09-10, 2019 at Bangkok, Thailand.

Organized around the theme "Recent Advances in Virology and Microbiology towards Healthier Life", Virology and Microbiology Congress 2019 is comprised of various sessions designed to offer comprehensive symposiums that address current Advances in the field of Virology and Microbiology and provides fantastic opportunity to network with your peers from Academia and Pharmaceutical industry.
Do not miss the best Keynote lectures, Plenary talks, Workshops, and Networking tour.
We cordially invite you all to take part in Virology and Microbiology 2019!