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Power Vacuum in Tehran After Reported Death of Iran’s Supreme Leader

                                A man holds a portrait of Iran's Supreme Leader Ayatollah Ali Khamenei and the national flag. A senior Israeli official has stated that Iran’s Supreme Leader, Ayatollah Ali Khamenei, was killed in a series of U.S.–Israeli strikes targeting leadership sites in Tehran. Satellite imagery reportedly shows heavy damage and smoke rising from Khamenei’s compound following the attacks.  Multiple outlets, including Reuters and Al Arabiya, report that the strikes were part of a coordinated operation aimed at crippling Iran’s top leadership structure. U.S. President Donald Trump publicly confirmed Khamenei’s death, calling him “one of the most evil people in history” and framing the operation as a step toward ending what he described as a long‑standing security threat.  Iranian state media has since acknowledged Khamenei’s death, announcing a 40‑day mourning p...
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Alzheimer’s vaccines get a boost from new drug approval

 

After decades of disappointment and controversy, the field of Alzheimer’s disease research has finally seen a breakthrough with the approval of the first drug that targets the underlying pathology of the condition. 

Aducanumab, a monoclonal antibody that clears amyloid plaques from the brain, was granted accelerated approval by the US Food and Drug Administration in June 2021, despite mixed results from clinical trials and objections from some experts. 

The drug’s approval has rekindled interest in other therapeutic approaches that aim to prevent or slow down the progression of Alzheimer’s, such as vaccines that stimulate the immune system to attack amyloid or tau, another protein that accumulates in the brains of people with the disease. 

Several vaccine candidates are currently in various stages of development and testing, and some researchers are optimistic that they could offer a more effective and convenient way to treat Alzheimer’s than infusions of antibodies.


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