April 24, 2026

Science Chronicle

A Science and Technology Blog

April 24, 2026

Science Chronicle

A Science and Technology Blog

Drugs

Drug resistanceMoxifloxacinTB persistersTuberculosis

Trojan Horse Strategy: How A Prodrug For Moxifloxacin Kills TB Persisters

When the TB drug moxifloxacin was masked as a prodrug form, the prodrug’s permeability into the bacteria improved significantly. Once inside the bacteria, the prodrug is activated by an enzyme leading to the generation of the active drug moxifloxacin within the bacteria. This strategy significantly enhanced the lethality against TB persisters, thus effectively reducing the population of persisters

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Artificial intelligence (AI)ChemistryDrug analoguesDrug designingDrug development

PURE: An AI Tool Makes Designing Safer, More Effective Medicines Easier

An AI tool developed by IIT Madras has made discovery of highly safe, effective drug analogues easily possible. In the case of the FDA-approved cancer drug Sorafenib, starting from its original structure, PURE produced hundreds of thousands of possible analogues, and then narrowed them down using basic drug-likeness filters. A manageable group of candidates that were selected exhibited docking scores comparable to, and in some cases, superior to those of Sorafenib

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Drug repurposingDrug resistanceImmunometabolismMacrophagesTuberculosis

Reprogramming Macrophages: A New Hope for Tuberculosis Therapy

Why does TB therapy take six-nine months, and why do some Mycobacterium tuberculosis inside macrophages survive antibiotics better than others? Rigorous experiments have now revealed that macrophage’s own metabolism and the host cell where the bacteria live play a key role in shaping drug tolerance

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Clinical trialDrug developmentEthicsResearch

FDA uncovers ‘significant’ data falsification by Indian company, rejects all studies

FDA has said that the Mumbai-based Raptim Research has been “responsible for the creation of false in vitro study data”

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COVID-19DrugsPublishingResearchResearch IntegrityRetractions

Journal finally retracts the discredited hydroxychloroquine paper

The paper published in the International Journal of Antimicrobial Agents was withdrawn because of concerns about the ethical approval for the research.

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DrugsPublic HealthResearch

Are antibiotics responsible for inflammatory bowel diseases?

Breakdown of the mucus barrier, which separates the intestinal epithelium from the microbiota, is a hallmark of inflammatory bowel diseases

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Communicable diseaseDrugsPublic HealthTuberculosis (TB)

Gross mismanagement: On TB drug shortages when India wants to ‘eliminate’ TB by 2025

With less than two years left to achieve the ambitious goal set by Prime Minister Narendra Modi in 2018 to

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Communicable diseaseDrugsTuberculosis (TB)

Kerala calls Health Ministry’s bluff, says yet to receive TB drugs Linezolid, Cycloserine

On October 1, the Health Ministry issued a press release for the second time in five days stating that “media reports claiming

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Communicable diseaseDrugsPublic HealthTuberculosis (TB)

Fact check: Contrary to government’s claim, there is TB drugs shortage in India

TB drug shortage began last year when Rifampicin — a medicine used for treating drug-sensitive TB — was not available

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CancerDrugsNon-communicable diseases

With pooled procurement, cancer drugs cost 82% less in India

In 1995, Tamil Nadu pioneered the centralised procurement and distribution of drugs and medicines to government hospitals across the State.

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Communicable diseaseDrugsPublic HealthTuberculosis (TB)

Eight months on, States wait for 3HP TB preventive drug

Though the Central TB Division has not supplied 3HP drugs to States since its roll-out in March, Tamil Nadu and

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Communicable diseaseDrugsPublic HealthTuberculosis (TB)

India faces TB drug shortage, no shortage in Tamil Nadu

While drug supply from Centre was adequate during the pandemic, it has not kept pace after reporting of cases reached

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DrugsMedicinepatent

Draft patent amendment rules undermine pre-grant opposition

Currently, the Patents Act explicitly permits anyone to file a pre-grant opposition. But as per the draft patent amendment rules,

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