domingo, 29 de enero de 2012

HIV life cycle

HIV infects cells on its surface with the CD4 molecule (a protein that belongs to some immune system cells that HIV uses as a receiver). The viral gp120 specifically recognizes and binds to CD4, and thus the virus binds to the cell membrane. After this union, the viral nucleoid enters the cell through the process of reverse transcription, viral RNA is converted into double-stranded DNA. This viral DNA is transported to the cell nucleus, where it is inserted or integrated into the DNA of the chromosomes of the cell. When producing the necessary stimulus, it triggers the formation of new virions. The integrated viral DNA in the chromosomes of the host cell uses replication mechanisms for transcription it into messenger RNA (mRNA) and new viral genomic RNA strands. There is then the translation of viral mRNA and enzyme structural viral proteins, and assembly of new virions within the cell. HIV particles thus created are released from the cell to take on their way out of the cell membrane for use as cover. HIV replication can cause the death of CD4 T lymphocytes (one of several types of white blood cells). The destruction of CD4 T cells via cell phone paralyzes the immune system, and this is the mechanism by which HIV infection can cause AIDS.

2 comentarios:

  1. There is a safe & effective Natural Herbal Medicine. For Total Cure Call    +2349010754824,  or email him   drrealakhigbe@gmail.com       For an Appointment with (Dr.) AKHIGBE contact him. Treatment with Natural Herbal Cure. For:Dengue Fever, Malaria. Painful or Irregular Menstruation. HIV/Aids. Diabetics. Vaginal Infections. Vaginal Discharge. Itching Of the Private Part. Breast Infection. Discharge from Breast. Breast Pain & Itching. Lower Abdominal Pain. No Periods or Periods Suddenly Stop. Women Sexual Problems. High Blood Pressure Chronic Disease. Pain during Sex inside the Pelvis. Pain during Urination. Pelvic Inflammatory Disease, (PID). Dripping Of Sperm from the Vagina As Well As for Low sperm count. Parkinson disease. Obesity, Lupus. Soreness/Injury  Cancer.  Tuberculosis.  Zero sperm count. Bacteria, Impotence Fertility,Protoplasmic, Diarrhea. Hepatitis A&B, Rabies. Asthma.  Quick Ejaculation. Gallstone, Cystic Fibrosis, Schizophrenia, Crubs, Cirrhosis,  Premature Ejaculation. Herpes. Joint Pain. Stroke. Cornelia Disease, Weak Erection. Ovarian problem,  HeartBurn, Erysipelas, Thyroid, Relapsing polychondritis,  Discharge from Penis. Bronchial Problem,  HPV.  Hepatitis A and B. STD. Smallpox, Staphylococcus + Gonorrhea + Syphilis. Heart Disease.  Pile-Hemorrhoid.rheumatism,  Impotence, thyroid, Autism, Depression,  Sepsis Bacteria,  Penis enlargement, Prostate Problem,  Waist & Back Pain.  Male Infertility and Female Infertility. Etc. Take Action Now. contact him & Order for your Natural Herbal Medicine:  +234 901 075 4824  and email him    drrealakhigbe@gmail.com    Note For an Appointment with (Dr.) AKHIGBE.I suffered in Cancer for a year and three months dying in pain and full of heartbreak. One day I was searching through the internet and I came across a testimony of herpes cure by doctor Akhigbe. So I contacted him to try my luck, we talked and he sent me the medicine through courier service and with instructions on how to be drinking it.To my greatest surprise drinking the herbal medicine within three weeks I got the changes and I was cured totally. I don't really know how it happens but there is power in Dr Akhigbe herbal medicine. He is a good herbalist doctor.

    ResponderEliminar
  2. Powerful Herbal treatment is 100% guarantee.

    Hello everyone, I want to say a special thanks to Dr OGU. for helping me get cured from herpes virus 2019 , I contacted him base on the testimonies I saw about him on the internet I was diagnosed of HERPES Virus i have tried all I can to get cured but all to know avail, until i saw a post in a health forum about a herbal man who prepare herbal medication to cure all kind of diseases including HERPES virus, at first i doubted if it was real but decided to give it a try I was cured by his herbal medicine and natural herbs, kindly contact him today through his email: drogugusolutionhome@gmail.com or text/call: +1 (719) 629 0982

    He’s waiting to help you.


    HE ALSO SPECIALIZE IN THE FOLLOWING DISEASES;

    If you have any sickness like : H I V/AIDS , CANCER , HERPES HSV 1 or 2 , GENITAL WARTS, Yeast-infection's (HPV), and Hepatitis A, B. liver diseases , Diabetes, 1 or 2. , fibroids, Chlamydia, Genital herpes, Alzheimer’s, Trichomoniasis , Tuberculosis, CAD, Gonorrhea, Epilepsy, and Syphilis.

    ResponderEliminar