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  1. 1 hour ago · At times the symptoms like rash, high fever, headache, vomiting, muscle and joint pains are neglected and it turns severe. Severe dengue (previously known as dengue haemorrhagic fever) was first recognised in the 1950s during dengue epidemics in the Philippines and Thailand. Common names for dengue fever include breakbone fever and dandy fever.

  2. Ivermectin - Wikipedia

    en.wikipedia.org › wiki › Ivermectin
    • Contraindications
    • Adverse Effects
    • Pharmacology
    • Chemistry
    • History
    • Society and Culture
    • Research
    • Veterinary Use
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    Ivermectin is contraindicated in children under the age of five or those who weigh less than 15 kilograms (33 pounds), and individuals with liver or kidney disease. Ivermectin is secreted in very low concentration in breast milk.It remains unclear if ivermectin is safe during pregnancy.

    Serious adverse events following ivermectin treatment are more common in people with very high burdens of larval Loa loa worms in their blood. Those who have over 30,000 microfilaria per milliliterof blood risk inflammation and capillary blockage due to the rapid death of the microfilaria following ivermectin treatment. The main concern is neurotoxicity, which in most mammalian species may manifest as central nervous system depression, and consequent ataxia, as might be expected from potentiation of inhibitory GABA-ergic synapses. Since drugs that inhibit the enzyme CYP3A4often also inhibit P-glycoprotein transport, the risk of increased absorption past the blood-brain barrier exists when ivermectin is administered along with other CYP3A4 inhibitors. These drugs include statins, HIV protease inhibitors, many calcium channel blockers, lidocaine, the benzodiazepines, and glucocorticoids such as dexamethasone. For dogs, the insecticide spinosadmay have the effect of increasing the toxi...

    Mechanism of action

    Ivermectin and its related drugs act by interfering with nerve and muscle function of helminths and insects. The drug binds to glutamate-gated chloride channels that are common to invertebrate nerve and muscle cells. Ivermectin binding pushes these channels open, increasing the flow of chloride ions and hyper-polarizing the cell membranes. This hyperpolarization paralyzes the affected tissue, eventually killing the invertebrate. In mammals (including humans) glutamate-gated chloride channels...

    Pharmacokinetics

    Ivermectin can be given by mouth, topically, or via injection. It does not readily cross the blood–brain barrier of mammals due to the presence of P-glycoprotein (the MDR1gene mutation affects function of this protein). Crossing may still become significant if ivermectin is given at high doses (in which case, brain levels peak 2–5 hours after administration).In contrast to mammals, ivermectin can cross the blood–brain barrier in tortoises, often with fatal consequences.

    Ecotoxicity

    Field studies have demonstrated the dung of animals treated with ivermectin supports a significantly reduced diversity of invertebrates, and the dung persists longer.

    Fermentation of Streptomyces avermitilis yields eight closely related avermectin homologues, of which B1a and B1b form the bulk of the products isolated. In a separate chemical step, the mixture is hydrogenatedto give ivermectin, which is an approximately 80:20 mixture of the two 22,23-dihydroavermectin compounds.

    The avermectin family of compounds was discovered by Satoshi Ōmura of Kitasato University and William Campbell of Merck. In 1970, Ōmura isolated unusual Streptomyces bacteria from the soil near a golf course along the south east coast of Honshu, Japan. Ōmura sent the bacteria to William Campbell, who showed that the bacterial culture could cure mice infected with the roundworm Heligmosomoides polygyrus. Campbell isolated the active compounds from the bacterial culture, naming them "avermectins" and the bacterium Streptomyces avermitilis for the compounds' ability to clear mice of worms (in Latin: a 'without', vermis 'worms'). Of the various avermectins, Campbell's group found the compound "avermectin B1" to be the most potent when taken orally. They synthesized modified forms of avermectin B1 to improve its pharmaceutical properties, eventually choosing a mixture of at least 80% 22,23-dihydroavermectin B1a and up to 20% 22,23-dihydroavermectin B1b, a combination they called "ivermec...

    Cost

    The initial price proposed by Merck in 1987 was US$6 per treatment, not affordable for most patients in Africa. The company donated hundreds of millions of courses of treatments since 1988 in more than 30 countries.Between 1995 and 2010 the program using donated ivermectin to prevent river blindness is estimated to have prevented seven million years of disability whilst costing US$257 million. As of 2019[update], the cost effectivenessof treating scabies and lice with ivermectin has not been...

    Brand names

    Ivermectin is available as a generic prescription drug in the U.S. in a 3 mg tablet formulation. It is also sold under the brand names Heartgard, Sklice and Stromectol in the United States, Ivomec worldwide by Merial Animal Health, Mectizan in Canada by Merck, Iver-DT in Nepal by Alive Pharmaceutical and Ivexterm in Mexico by Valeant Pharmaceuticals International. In Southeast Asian countries, it is marketed by Delta Pharma Ltd. under the trade name Scabo 6. The formulation for rosacea treatm...

    COVID-19 misinformation

    In December 2020, Chair of the US Senate Homeland Security Committee Ron Johnson used a Senate hearing to promote fringe theories about COVID-19. Among the witnesses was Pierre Kory, a pulmonary and critical care doctor, who erroneously described ivermectin as "miraculous" and as a "wonder drug" to be used against COVID-19. Video footage of his statements went viral on social media, receiving over one million views as of 11 December 2020. During the pandemic, a number of misleading websites a...

    Tropical diseases

    Ivermectin is being studied as a potential antiviral agent against chikungunya and yellow fever. Ivermectin is also of interest in the prevention of malaria, as it is toxic to both the malaria plasmodium itself and the mosquitos that carry it. A direct effect on malaria parasites could not be shown in an experimental infection of volunteers with Plasmodium falciparum. Use of ivermectin at higher doses necessary to control malaria is probably safe, though large clinical trials have not yet bee...

    NAFLD

    In 2013, this antiparasitic drug was demonstrated as a novel ligand of farnesoid X receptor (FXR), a therapeutic target for nonalcoholic fatty liver disease.

    Ivermectin is routinely used to control parasitic worms in the gastrointestinal tract of ruminant animals. These parasites normally enter the animal when it is grazing, pass the bowel, and set and mature in the intestines, after which they produce eggs that leave the animal via its droppings and can infest new pastures. Ivermectin is effective in killing some, but not all, of these parasites.[citation needed] In dogs it is routinely used as prophylaxis against heartworm. Dogs with defects in the P-glycoprotein gene (MDR1), often collie-like herding dogs, can be severely poisoned by ivermectin. The mnemonic "white feet, don't treat" refers to Scotch collies that are vulnerable to ivermectin. Some other dog breeds (especially the Rough Collie, the Smooth Collie, the Shetland Sheepdog, and the Australian Shepherd), also have a high incidence of mutation within the MDR1 gene (coding for P-glycoprotein) and are sensitive to the toxic effects of ivermectin. Clinical evidence suggests kitt...

    • C, ₄₈H, ₇₄O, ₁₄ (22,23-dihydroavermectin B₁ₐ), C, ₄₇H, ₇₂O, ₁₄ (22,23-dihydroavermectin B1b)
    • Stromectol, Soolantra, Sklice, others
  3. Study: Game changer found in dengue fight - PressReader

    www.pressreader.com › philippines › philippine-daily

    Jun 13, 2021 · Symptoms typically include body aches, fever and nausea. “This is the result we’ve been waiting for,” said World Mosquito Program director Scott O’Neill. “We have evidence our Wolbachia method is safe, sustainabl­e and dramatical­ly reduces incidence of dengue.

  4. Study sees game changer in global fight vs dengue

    theworldnews.net › ph-news › study-sees-game-changer

    Jun 12, 2021 · Dengue is the most rapidly spreading mosquito-borne disease in the world with more than 50 million cases globally every year, including about 8 million in Indonesia. Studies have also shown that the Wolbachia method can be effective in preventing the transmission of Zika, chikungunya, yellow fever, and other mosquito-borne illnesses ...

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  6. Why People with Low Immunity Must be More Careful of ...

    ndtvlatestnews.com › why-people-with-low-immunity

    Jun 13, 2021 · Dengue or dengue fever is a mosquito-borne viral infection causing a severe flu-like illness that sometimes may cause potentially lethal complication called severe dengue. The monsoon disease is caused during the rains as the mosquito – Aedes aegypti that is the main vector – breeds in stagnant water. According to the World Health Organization (WHO), […]

  7. Rabies Vaccination for Travel - Wanderlust Travel and Photos Blog

    wanderlustphotosblog.com › 2021/06/12 › rabies

    Jun 12, 2021 · Diseases like HIV, Tuberculosis, Malaria, Yellow Fever, Dengue Fever, Typhoid, Zika Virus, and many others continue to disproportionately kill more people in Africa and Asia than anywhere else in this world. No matter where we live, it is on all of us to help eliminate deaths from these illnesses in all parts of the world.

  8. Why People with Low Immunity Must be More Careful of ...

    mydroll.com › why-people-with-low-immunity-must-be

    Jun 13, 2021 · Dengue or dengue fever is a mosquito-borne viral infection causing a severe flu-like illness that sometimes may cause potentially lethal complication called severe dengue. The monsoon disease is caused during the rains as the mosquito – Aedes aegypti that is the main vector – breeds in stagnant water.

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