HeLa cell cultures – Cellular biology record

HeLa cell cultures - Multiphoton fluorescence image of HeLa cellsHeLa cell cultures - Multiphoton fluorescence image of HeLa cells with cytoskeletal microtubules and DNAHeLa cell - Scanning electron micrographHeLa cell cultures - 6.10.2015HeLa cells stained

 

HeLa cells - Scanning electron micrograph of just divided cellsMulticolor fluorescence image of living HeLa cell - 1.10.2014Multicolor fluorescence image of living HeLa cells - 1.10.2014HeLa cells - 27.11.2011Multiphoton fluorescence image of HeLa cells

HeLa cell cultures – Cellular biology record

HeLa cell cultures – They are the record of cellular biology. They have been used by scientists around the world for nearly seven decades. They come from Henrietta Lacks, a patient who died of cervical cancer in 1951. Cancer cells that were taken from without her consent and knowledge. George Otto Gey, a researcher at Johns Hopkins Hospital, examined them.
He discovered that cells divide extremely efficiently and do not die.
Science had no such material at its disposal before.

Immortal cells are used to research new drugs and vaccines.

They were sent into space (to check if low gravity would damage human tissues) and helped in gene mapping. It is estimated that all HeLa cells that have been produced in laboratories weigh a few dozen thousand tons in total.
Much more than Henrietta Lacks, who has almost been forgotten for many decades.

Ricinus communis – Castor oil plant

Ricinus communis - Southern MexicoRicinus communis - Botanic Garden (Frankfurt, Germany)Ricinus communis - Venezuela
 
 
 
 
 
Ricinus communis - Castor oil plant (1)Ricinus communis - Castor oil plant (2)

Ricinus communis – Castor oil plant

Ricinus communis – It probably comes from the north of Africa. It is a 10-meter tall plant that enjoys great popularity in gardening.

  • Deadly dose: 15 – 20 seeds
  • Death: to 1 week
  • Poison: ricin
  • Aftermath: renal, liver and spleen failure
  • Where it grows: in all tropical and subtropical areas of the world
  • Occurrence in Poland: artificially bred

The most dangerous are the bars of its seeds, about 6,000 times more aggressive than cyanide. Causes agglutination of red blood cells and damages the liver, kidneys and spleen. The first symptoms are similar to a cold, followed by headaches, mouth burning, vomiting and internal bleeding. It gradually attacks the entire human circulatory system.

History of the plant:
Castor oil is squeezed from the seeds, from which soap, ointments, drops or perfumes are made. Apparently Cleopatra applied it to her eyes to have a “wider perspective”. In 1978, a Bulgarian secret interview was used to murder the writer and journalist Georgie Markov, who after several days of the fight for his life died of kidney failure in a London hospital.

Albert Schweitzer – French theologian, philosopher, physician

Albert Schweitzer - French theologian, philosopher, physician

Albert Schweitzer – French theologian, philosopher, physician

Albert Schweitzer – In 01.14.1875 born French theologian, philosopher and physician A. Schweitzer.
In 1912
he resigned from the post of associate professor of theology at the University of Strasbourg.
A year later,
in Lambarene (Gabon today) founded a hospital where he treated residents and
led the
missionary center. In 1952 he received the Nobel Peace Prize.

United States hospitals pagers

United States hospitals pagers - Motorola Pager

United States hospitals pagers

United States hospitals pagers – In 2014. 90 percent of US hospitals still used the pager. There are an alternative to a mobile phone, but its complement. They check up where modern technology fails. Pagers do not have to be loaded, because just the simple battery. Coverage of their networks often reaches where there is no signal needed normal mobile phones. It is not disturb the work complicated medical equipment, so it can be used throughout the hospital.