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Rate of heart attacks and strokes was lower after COVID-19 vaccination: Study

Previous research has found that the incidence of rare cardiovascular complications is higher after some COVID-19 vaccines

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Image credit: Alexandra_Koch from Pixabay

A new study involving nearly the entire adult population of England found that the incidence of heart attacks and strokes was lower after receiving the COVID-19 vaccination compared to before vaccination or without vaccination.

The study published in Nature Communications reported that the occurrence of arterial thromboses, including heart attacks and strokes, was up to 10% lower in the 13 to 24 weeks following the first dose of a COVID-19 vaccine. After the second dose, the incidence was reduced by up to 27% with the AstraZeneca vaccine and by up to 20% with the Pfizer/BioNTech vaccine.

The pattern of common venous thrombotic events, such as pulmonary embolism and deep venous thrombosis in the lower limbs, followed a consistent trajectory.

Research conducted by the Universities of Cambridge, Bristol, and Edinburgh, and supported by the British Heart Foundation (BHF) Data Science Centre at Health Data Research UK, analyzed de-identified health records from 46 million adults in England between 8 December 2020 and 23 January 2022. Data scientists compared the incidence of cardiovascular diseases following vaccination with the incidence before or without vaccination during the first two years of the vaccination program.

“We studied COVID-19 vaccines and cardiovascular disease in nearly 46 million adults in England and found a similar or lower incidence of common cardiovascular diseases, such as heart attacks and strokes, following each vaccination than before or without vaccination. This research further supports the large body of evidence on the safety of the COVID-19 vaccination programme, which has been shown to provide protection against severe COVID-19 and saved millions of lives worldwide,” Dr Samantha Ip, Research Associate at the Department of Public Health and Primary Care, University of Cambridge, said in a statement.

Previous research has found that the incidence of rare cardiovascular complications is higher after some COVID-19 vaccines. For instance, cases of myocarditis and pericarditis have been reported following mRNA-based vaccines like the Pfizer/BioNTech vaccine, and vaccine-induced thrombotic thrombocytopenia has been associated with adenovirus-based vaccines like the AstraZeneca vaccine. This study supports these findings but importantly did not identify any new adverse cardiovascular conditions linked to COVID-19 vaccination, providing further reassurance that the benefits of vaccination outweigh the risks.

The incidence of cardiovascular disease is higher after COVID-19, especially in severe cases. This may explain why the incidence of heart attacks and strokes is lower in vaccinated individuals compared to unvaccinated individuals, although further explanations are beyond the scope of this study, according to a press statement published by University of Cambridge.

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Health

IITK Researchers Unveils Key Receptor Structure for Cancer and Respiratory Treatments

The team successfully visualized the atomic structure of CXCR2, a crucial human receptor involved in the progression of cancer and respiratory diseases

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GPCR Lab. Image credit: By special arrangement

Researchers from the Department of Biological Sciences and Bioengineering at the Indian Institute of Technology (IIT) Kanpur have made a path breaking discovery that could pave the way for new treatments for cancer and respiratory diseases. The team successfully visualized the atomic structure of CXCR2, a crucial human receptor involved in the progression of these diseases. Their findings, published in the prestigious journal Molecular Cell, offer a new perspective on targeting this receptor for therapeutic intervention.

CXCR2 is a key receptor in the immune system, involved in directing immune cells to infection and injury sites through interaction with chemokines—small signaling proteins. CXCR2’s role in inflammatory disorders and cancers such as chronic obstructive pulmonary disease (COPD), asthma, atherosclerosis, and pancreatic cancer makes it a promising target for new drugs.

Using advanced cryogenic-electron microscopy (cryo-EM), the IIT Kanpur researchers captured unprecedented details of the receptor’s “lock-and-key” mechanism, shedding light on how CXCR2 interacts with multiple chemokines. This discovery addresses a fundamental question in biomedical science about how a single receptor can bind to various chemokines and trigger biological responses. The visualization also opens up opportunities for designing novel therapeutics.

“Our findings provide a molecular blueprint for designing next-generation therapeutics that can precisely target CXCR2 and potentially reduce its role in cancer and respiratory diseases. By visualizing this receptor in its active state, we now have the opportunity to develop highly specific inhibitors that can disrupt its function, potentially leading to significant advancements in treatment strategies,” said Professor Arun Kumar Shukla, the lead investigator of the study at IIT Kanpur.

The research team at IIT Kanpur includes Shirsha Saha, Saloni Sharma, Manisankar Ganguly, Nashrah Zaidi, Divyanshu Tiwari, Nabarun Roy, Nilanjana Banerjee, and Ramanuj Banerjee. Their work also involved collaboration with experts from the University of Tokyo, Japan—Fumiya Sano, Hiroaki Akasaka, Takaaki Kobayashi, Yuzuru Itoh, Wataru Shihoya, and Osamu Nureki—along with Andy Chevigne from the Luxembourg Institute of Health.

This study was funded by the DBT Wellcome Trust India Alliance, Science and Engineering Research Board (SERB), Indian Council of Medical Research (ICMR), and LADY TATA Memorial Trust.

Building on this discovery, the IIT Kanpur team is now developing small molecules and antibodies aimed at targeting CXCR2. These therapeutics will undergo laboratory testing, followed by animal studies, bringing the team closer to offering innovative treatments for cancer and respiratory diseases. This achievement further underscores IIT Kanpur’s commitment to pioneering research that has the potential to revolutionize global healthcare and biomedical innovation.

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Society

Is India’s Clean Cooking Gas Model the Future for the Global South?

The Indian model, backed by smart subsidies and sustainable policies, provides a scalable solution for developing nations striving for clean cooking access

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Image by Aristal Branson from Pixabay

At the just concluded India Energy Week 2025 (February 11-14), India’s Union Minister of Petroleum and Natural Gas, Hardeep Singh Puri, chaired a Ministerial Roundtable on Clean Cooking, where India’s success in providing universal access to clean cooking gas became a key focal point. The Minister emphasized that India’s model for clean cooking gas is not only a success story but also a replicable blueprint for the Global South, offering solutions to nations facing similar energy access challenges.

“India’s clean cooking gas revolution is a game-changer,” said Puri. He pointed out the key factors behind this success: targeted subsidies, strong political will, the digitization of distribution networks by Oil Marketing Companies (OMCs), and nationwide campaigns to shift cultural practices towards clean cooking.

The session brought together representatives from Brazil, Tanzania, Malawi, Sudan, Nepal, and key industry leaders, including the International Energy Agency (IEA), Total Energy, and Boston Consulting Group (BCG). These nations, all striving to enhance energy access for their populations, were eager to learn from India’s achievements.

Under India’s popular government scheme Pradhan Mantri Ujjwala Yojana (PMUY– Prime Minister’s Lightening Scheme), beneficiaries receive LPG access at a highly affordable cost of just 7 cents per day, while other consumers can access clean cooking fuel at 15 cents per day. “This affordability has been a game-changer in driving widespread adoption,” added Shri Puri, underlining the pivotal role of subsidies in overcoming financial barriers to clean cooking.

International representatives shared their nations’ efforts to transition to clean cooking solutions. Dkt. Doto Mashaka Biteko, Deputy Prime Minister and Minister of Energy of Tanzania, outlined the country’s strategy to transition 80% of households to clean cooking by 2030, relying on subsidies and a mix of energy sources, including LPG, natural gas, and biogas. Despite this ambition, he noted challenges such as financing constraints, infrastructure costs, and the need for regulatory reforms to encourage private-sector participation.

Similarly, Dr. Mohieldien Naiem Mohamed Saied, Minister of Energy and Oil, Sudan, emphasized the need for private-sector involvement to overcome gaps in LPG supply, particularly as Sudan still imports much of its energy. He stressed the importance of encouraging local cylinder production and ensuring cost-effective imports to drive broader adoption.

Mary Burce Warlick, Deputy Executive Director of the IEA, recognized India’s success as a model that offers valuable lessons for other nations grappling with issues of affordability, access, and infrastructure. She emphasized the role of concessional financing and public-private partnerships (PPP) in scaling up clean cooking access. Addressing cultural acceptance and regulatory adjustments, such as tax reductions, were also highlighted as critical factors for large-scale adoption.

Rahool Panandiker, Partner at Boston Consulting Group (BCG), further underscored the effectiveness of India’s clean cooking transformation. He attributed the success to the strong political commitment, effective subsidy targeting, and robust public awareness campaigns. Panandiker also credited India’s Oil Marketing Companies (OMCs) for enabling last-mile LPG delivery through digital platforms, making adoption seamless. He also stressed the importance of refining the cylinder refill model to ensure sustained usage while balancing affordability with economic sustainability.

In addition to LPG, the roundtable explored the potential of alternative clean cooking technologies. Puri addressed the potential of solar cookers in expanding clean cooking solutions across the Global South. He highlighted that IOCL’s advanced solar cookers, priced at approximately $500 per unit, could be a viable solution, though the price point remains a challenge for widespread adoption. “Leveraging carbon financing and collaborating with the private sector can drive costs down and make solar cooking a viable alternative for millions,” he stated.

This initiative aligns with India’s broader efforts to diversify clean cooking options beyond LPG, further reinforcing its commitment to reducing reliance on traditional biomass fuels and cutting carbon emissions. The government’s focus on solar cooking options aims to ensure a more sustainable future for energy access, particularly in remote and underserved areas.

“The Indian model, backed by smart subsidies and sustainable policies, provides a scalable solution for developing nations striving for clean cooking access,” Puri said. He also stressed that achieving universal clean cooking access is not merely an economic imperative but a moral one, given the severe health and environmental impacts of traditional biomass cooking.

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Green Energy

India Strengthens Clean Energy Initiatives at India Energy Week 2025

These clean energy projects are part of India’s broader strategy to diversify its energy sources and strengthen its energy security while promoting sustainability

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Image credit: PIB

At the India Energy Week 2025, India underscored its commitment to a sustainable and clean energy future through several strategic partnerships and agreements. Minister of Petroleum and Natural Gas, Hardeep Singh Puri, highlighted the importance of these initiatives in driving India’s transition to a greener energy landscape.

A key development in the clean energy sector was the partnership between India’s public sector firm BPCL and Eco Wave Power of Israel, which aims to establish India’s first wave energy pilot project in Mumbai. The project will utilize wave energy converter technology, marking a significant step in the country’s exploration of renewable energy sources.

In the biofuel sector, BPCL also signed an MoU with the National Sugar Institute, Kanpur, to scale up the production of sweet sorghum-based bioethanol. This collaboration will help build capacity for both farmers and industry partners, supporting India’s drive to increase the share of biofuels in its energy mix.

These clean energy projects are part of India’s broader strategy to diversify its energy sources and strengthen its energy security while promoting sustainability. Through these initiatives, India is reinforcing its position as a key player in the global clean energy transition.

Minister Puri emphasized that these agreements are a testament to India’s commitment to securing affordable, sustainable energy and fostering international collaborations in cutting-edge energy solutions. These partnerships will help achieve India’s energy transition goals, ensuring a resilient and sustainable energy future for the nation.

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