Clinica Vania Ligia

Clinica Vania Ligia ginecologista , obstetrícia ( infantil é idoso ) 50 anos dedicado a medicina com muito amor 💙👩🏼‍⚕️

Clínica Vânia Lígia / 1997 / trabalhando para você mulher ( ginecologista e obstetra) mais de 18 mil partos cesárias !!! Com muito amor , carinho e Deus no coração para trata os pacientes da melhor forma possível .

07/09/2025

Cientistas imprimiram em 3D as primeiras córneas humanas usando uma bio-tinta feita a partir de células-tronco!

O processo leva apenas 10 minutos e pode ser personalizado para cada paciente, oferecendo uma forma de restaurar a visão de milhões de pessoas no mundo todo.

Pesquisadores da Universidade de Newcastle conseguiram imprimir em 3D as primeiras córneas humanas utilizando células-tronco e uma bio-tinta especialmente desenvolvida.

Essa inovação oferece uma solução promissora para a escassez global de córneas doadas, já que mais de 10 milhões de pessoas no mundo precisam de cirurgia para evitar a cegueira causada por doenças como o tracoma, e quase 5 milhões já estão cegas devido a cicatrizes na córnea.

Usando uma impressora 3D de baixo custo, a equipe extrusou um gel com células-tronco feito de alginato e colágeno para formar uma córnea em menos de 10 minutos — um processo que manteve tanto a viabilidade celular quanto a fidelidade do formato.

O estudo, publicado na revista Experimental Eye Research, mostrou que as córneas podem ser impressas sob medida para cada paciente por meio da varredura dos olhos e do uso desses dados para moldar o tecido. Embora a tecnologia ainda exija anos de te**es antes de ser aplicada em transplantes, especialistas afirmam que ela possui um enorme potencial.

“Essa abordagem tem o potencial de combater a escassez mundial”, disse o professor Che Connon, que liderou o estudo. Até lá, os pesquisadores ressaltam que a doação de órgãos continua sendo essencial para aqueles que sofrem de cegueira corneana atualmente.

Fonte: 3D bioprinting of a corneal stroma equivalent,
Experimental Eye Research,
Volume 173,
2018,

30/08/2025

🏋️‍♀️ Just one workout can release proteins that slow breast cancer cell growth by 30%!

A new study indicates that exercise can help fight breast cancer by flooding the bloodstream with tumor-suppressing proteins.

Researchers at Edith Cowan University in Australia tested 32 breast cancer survivors, having them complete a single 45-minute session of either resistance training or high-intensity interval training (HIIT).

Blood samples taken before, immediately after, and 30 minutes post-exercise revealed a surge in three key myokines — decorin, IL-6, and SPARC — which, when introduced to breast cancer cells in the lab, slowed tumor growth by up to 30 percent.

Myokines are signaling proteins released by muscles during exercise, best known for roles in muscle growth, fat burning, and inflammation control.

This study is the first to show that both resistance and HIIT workouts in breast cancer survivors can generate these anti-cancer molecules in meaningful amounts.

Even triple-negative breast cancer cells — which don’t respond to hormone-based treatments — were affected by the exercise-induced myokines. While the effects observed were short-term, the findings bolster evidence that regular exercise could be a valuable addition to cancer care, with more research needed to determine its role in preventing recurrence.

read the paper
Bettariga, F., Taaffe, D.R., Crespo-Garcia, C. et al. A single bout of resistance or high-intensity interval training increases anti-cancer myokines and suppresses cancer cell growth in vitro in survivors of breast cancer. Breast Cancer Res Treat 213, 171–180 (2025).

26/08/2025

🧠 Lab-grown brain cells are being transplanted into patients with Parkinson’s — and they are working.

Early results show we may finally have a treatment that works!

For more than 200 years, Parkinson’s disease has resisted a cure, leaving millions dependent on medications that ease symptoms but never replace what is lost.

Now, scientists across three continents are testing a radical new strategy: transplanting lab-grown dopamine-producing neurons into patients’ brains.

Early trials in Japan, the U.S., and Sweden show the transplanted cells can survive, integrate, and begin producing dopamine without severe side effects. In some patients, brain scans confirm increased dopamine levels, and those who received higher doses showed notable improvements in motor function.

After decades of setbacks, researchers believe stem cell therapy may finally be poised to change the treatment landscape.

For patients like Andy, one of just eight participants in Europe’s pioneering STEM-PD trial, the decision to undergo brain surgery was daunting but filled with hope. “If this helps—even a little—it will have been worth it,” he says. His story reflects the cautious optimism surrounding the field: the transplanted cells may take years to fully integrate, but the first signals are encouraging.

With the FDA fast-tracking a U.S. trial to Phase 3, global research groups are now balancing cooperation with competition, racing toward what could become the first approved stem cell therapy for Parkinson’s. Whether this revolution succeeds will depend not only on the science but also on ensuring access for the millions still waiting.

paper
Holm Nygaard A, Schörling AL, Abay-Nørgaard Z, Hänninen E, Li Y, Ramón Santonja A, Rathore GS, Salvador A, Rusimbi C, Lauritzen KB, Zhang Y, Kirkeby A. Patterning effects of FGF17 and cAMP on generation of dopaminergic progenitors for cell replacement therapy in Parkinson's disease. Stem Cells. 2025 Mar 10;43(3)

20/08/2025

Men are losing the Y chromosome in blood cells, and it is increasing fatal heart attacks.

The researchers say the "loss of Y is killing men."

In a new study in European Heart Journal, researchers found that the mosaic loss of Y chromosome is an overlooked and *major* risk factor for heart disease deaths in men.

Men who lose a significant portion of the Y chromosome in their blood cells are at a sharply higher risk of dying from heart-related conditions, according to the research involving over 1,600 patients who underwent coronary angiography.

The study found that men with over 17% loss of the Y chromosome in their blood cells had a 49% greater risk of dying from cardiovascular causes, particularly fatal heart attacks.

Researchers say this genetic change—called mosaic loss of Y (LOY)—is common after age 60 and may contribute to dangerous heart tissue scarring and inflammation.

The study linked LOY to increased levels of proteins associated with fibrosis and inflammation, as well as changes in the expression of key genes that regulate immune and heart cell function.

One of those genes, RPS5, was shown to play a direct role in promoting heart fibrosis when silenced in immune cells. While men with a genetic profile that protects against heart scarring were somewhat shielded from these effects, LOY still posed a major independent risk factor for heart-related death. Scientists now believe targeting LOY could pave the way for sex-specific therapies to reduce heart disease mortality in men.

source
Weyrich M, Zewinger S, Sarakpi T, Rasper T, Kleber ME, Cremer S, Zanders L, Fleck F, Siegbahn A, Wallentin L, Abplanalp WT, Nerbas L, Fay S, Eberle AL, Dimmeler S, März W, Speer T, Zeiher AM. "Mosaic loss of Y chromosome and mortality after coronary angiography." Eur Heart J. 2025 May 2;46(17)

07/08/2025

There may be a fifth force of nature — one we have virtually no knowledge of.

Now, physicists may be closing in on this long-theorized fifth force of nature, a breakthrough that could help explain the mystery of dark matter.

In a set of ultra-precise atomic experiments led by ETH Zurich, researchers measured minuscule shifts in the energy levels of calcium isotopes to search for signs of an unknown force acting between neutrons and electrons.

This new force, if real, would be transmitted by a hypothetical particle and could extend beyond the four known forces in the Standard Model: gravity, electromagnetism, and the strong and weak nuclear forces.

By comparing five calcium isotopes trapped and cooled with lasers, the team achieved an unprecedented level of precision—accurate to within 100 millihertz. Although the results did not confirm the existence of the new force, they allowed researchers to place tight limits on the strength and mass of any potential fifth-force particle. These findings are critical in narrowing down where to look next, as scientists continue to refine their measurements and expand the experiment into three dimensions using additional transitions. The research marks a key step in the global effort to reveal physics beyond the Standard Model—and possibly the secret to the universe’s missing mass.

Source: Wilzewski, A., et al. (2025). Nonlinear Calcium King Plot Constrains New Bosons and Nuclear Properties. Physical Review Letters.

31/07/2025

Estudo revela como velocidade, ordem dos alimentos e até horário das refeições ajudam a estimular o mesmo hormônio de saciedade ativado pelos remédios para emagrecer

28/07/2025

Rose Han passou a viver como nômade em uma van, viajando pelo país, mas sentiu que a aposentadoria não era o melhor caminho

20/07/2025

Pesquisadores do Instituto Weizmann, em Israel, desenvolveram um “gêmeo digital” capaz de antecipar doenças e indicar como evitá-las. 🩺🧬

Baseado em inteligência artificial e em um dos maiores bancos de dados médicos do mundo, o modelo simula a saúde futura de cada pessoa e recomenda mudanças personalizadas.

A tecnologia já ajuda a prever diabetes, câncer e outras doenças, marcando o início de uma nova era da medicina preventiva.
"Estamos vivendo em uma era de mudanças incrivelmente rápidas. Os domínios da saúde e da medicina passarão por transformações dramáticas nos próximos anos, tornando-se cada vez mais orientados pela IA. Nosso projeto está pronto para ser uma fonte líder global de informação e inovação”, afirma o Prof. Eran Segal.

02/07/2025

🚨 A high-magnesium diet slows brain aging and reduces your dementia risk, study shows.

A new study from the Australian National University has found that a high-magnesium diet can significantly slow brain aging and reduce the risk of dementia, especially in women.

Analyzing health data from over 6,000 individuals aged 40 to 73, researchers discovered that people who consumed more than 550 mg of magnesium daily had brains that appeared almost a year younger by age 55 compared to those with lower magnesium intake.

The greatest benefits were observed in postmenopausal women, suggesting magnesium’s anti-inflammatory properties may offer heightened protection in this group.

Magnesium is abundant in leafy greens, nuts, seeds, legumes, and whole grains, and while its benefits for bone and heart health are well known, this research points to a promising role in preserving brain function. As dementia rates continue to climb globally, the findings highlight how simple dietary changes could become powerful tools in protecting cognitive health. Researchers stress the need for further studies to solidify these findings and inform future public health guidance.

learn more https://www.voisefoundation.org/magnesium-can-help-prevent-dementia/

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medicina com amor

dravanialigia ( 47 anos com muito amor a medicina ) atendimento especial para idoso e criança , central de gestante ; com mais de 18 mil partos cessaria , temos o cuidado de tratar o paciente de forma humana , com muito respeito ao proximo e com a força de deus .