35
The text of this presentation is at http://leederville.net/links/pretoria2.doc

The text of this presentation is at

Embed Size (px)

Citation preview

Page 1: The text of this presentation is at

The text of this presentation is at

http://leederville.net/links/pretoria2.doc

Page 2: The text of this presentation is at

TESTING AND SURVEILLANCE

Page 3: The text of this presentation is at

HIV PROTEINS

“...analysis of the proteins demands mass production

and purification”

Luc Montagnier 1997

Page 4: The text of this presentation is at

Montagnier 1983Material at 1.16 gm/ml

“Purified virus”

3 proteins react with patient serump24/25 =“HIV”

No EM

Page 5: The text of this presentation is at
Page 6: The text of this presentation is at
Page 7: The text of this presentation is at

“I REPEAT, WE DID NOT PURIFY”

NO PARTICLES “TYPICAL OF

RETROVIRUSES” IN THE “PURIFIED” VIRUS

Luc Montagnier Pasteur Institute Interview July 1997

Page 8: The text of this presentation is at
Page 9: The text of this presentation is at

THE “HIV” PROTEINS p41/120/160

MONTAGNIER 1983, 1997p41 PROTEIN IS CELLULAR ACTIN

Arthur 1992; Orentas, 1993; Pearce-Pratt 1994; Sasaki 1995; Choudhury 1996

ACTIN PRESENT IN PURE HIV

Page 10: The text of this presentation is at

THE “HIV” PROTEINS p41/p120/p160

Pinter 1989 J. Virology 63: 2674-79

p160, p120 IN “HIV” WB OLIGOMERS OF p41

“Confusion over the identification of these bands has resulted in incorrect conclusions…some clinical specimens may been identified erroneously as seropositive…”

Page 11: The text of this presentation is at

THE “HIV” PROTEINS p24

MORTIMER 1992 p24 NON-SPECIFIC

SCHUPBACH 1992 p24 IN 49/60 (82%) of "presumably uninfected but serologically indeterminate” and “5/5 seronegative blood donors”Agbalika 1992; Vincent 1993 HIGHEST LEVELS OF p24 IN NON-INFECTED ORGAN TRANSPLANT RECIPIENTS

Page 12: The text of this presentation is at

THE “HIV” PROTEINS p32

Henderson1987 studied the p30-32 and p34-36 of "HIV purified by double banding" in sucrose density gradients. Comparison with the amino-acid sequences of these proteins with Class II histocompatability DR proteins proved that "the DR alpha and beta chains appeared to be identical to the p34-36 and p30-32 proteins respectively”

Cellular origin also acknowledged by other HIV experts such as Arthur 1995.

Page 13: The text of this presentation is at

THE “HIV” PROTEINS- p17/18

Stricker 1987 Sera from AIDS patients bind to a p18 protein bind to mitogenically stimulated but uninfected in uninfected lymphocytesChassagne 1986 MCA to "HIV" p18 reacts with dendritic cells in the lymphatic tissues of a variety of patients with a number of non-AIDS related diseasesParravcini 1988 the "same pattern reactivity was present in normal tissue taken from uninfected individuals as in those taken from HIV positive subjects”Faulk 1991 MCA to “HIV” proves p17 present in normal, uninfected human placenta

Page 14: The text of this presentation is at

HIV PROTEINS IN NORMAL HUMAN PLACENTA p18/p24/p120

Faulk and Labarrere 1991Immunocytochemical reactivity using poly- and monoclonal antibodies

“Placentae from 25 normal term pregnancies were collected by vaginal delivery...Antigens gp120 and p17 were identified in normal chorionic villi…Antigen p24…in villous mesenchymal cells...localized to HLA-DR positive cells”

Page 15: The text of this presentation is at

WHY THE ANTIBODY REACTIONS?

Infectious agents (inc. mycobact, fungi)Autoantibodies (many inc. actin & myosin)Non-specific and cross reacting antibodies

?HIV

Page 16: The text of this presentation is at

GOLD STANDARD

HIV ITSELFHIV ISOLATION

Page 17: The text of this presentation is at

HIV ISOLATION PROBLEMATIC

RT (inc. mitochondria)PARTICLES

ANTIGEN/ANTIBODY REACTIONSp24

ALL NON-SPECIFIC

Page 18: The text of this presentation is at

NIAID Web site“Currently available HIV antibody tests are extraordinarily accurate, both in terms of sensitivity (the ability of the test to give a positive finding when a subject is truly HIV-infected) and specificity (the ability of the test to give a negative finding when a subject is truly HIV-free)”.

Page 19: The text of this presentation is at

PIE IN OVEN NO PIE

LIGHT ON 80 10

LIGHT OFF 2 640

82 650

DAYS 732Pies 82One every 9 daysSensitivity 97.6%Specificity 98.5%

Page 20: The text of this presentation is at

DISEASE NO DISEASE

POSITIVE

NEGATIVE

Page 21: The text of this presentation is at

HIV NO HIV

POSITIVE

NEGATIVE

Page 22: The text of this presentation is at

Assay Name (Manufacturer) Global Panel

Sensitivity SpecificityDetect HIV 1 + II 100% 97.4%Cambridge 99.6% 99.7%Abbott 3rd generation 100% 100%HIV

Page 23: The text of this presentation is at

The panel included 332 HIV negative specimens

and 203 sera positive for HIV-1 and 60 positive for HIV-2

specimens

Page 24: The text of this presentation is at

AIDS Blood

Donors

HIV POS 86 19

HIV NEG 2 795

88 814

Sensitivity 97.73%Specificity 97.67%

GALLO JAMA 1985

Page 25: The text of this presentation is at

NO RISK HOSPITAL PATIENTS St. Louis 1988

HOS NUM ALL MEN 25-44 WOM 25-441 2897 7.8 21.7 7.42 4406 5.6 18.4 7.83 1968 3.2 13.3 3.54 1720 1.9 7.1 0.75 5380 0.9 3.2 0.86 3299 2.6 7.7 3.37 3823 1.9 1.8 2.48 4275 1.8 5.7 0.8

Page 26: The text of this presentation is at

BURKE NEJM 1988

1.2 MILLION/135,1871.4 and 0.148 per 1000

HEALTHY MILITARYRECRUITS

Page 27: The text of this presentation is at

HIV NO HIV

POSITIVE 14 1

NEGATIVE 0 135172

14 135173

Total 135187Sensitivity 100.0%Specificity 99.9993%

Page 28: The text of this presentation is at

BURKEHIV POSITIVE = 2E + 2WBHIV NEGATIVE = NOT ABOVE

TRULY INFECTED = 2E +2WB+4XWBNOT TRULY INFECTED= NOT ABOVE

Page 29: The text of this presentation is at

THE DE FACTO HIV GOLD STANDARDS

THE CLINICAL SYNDROMELOW RISK/GOOD HEALTH

REPEATING THE TEST

Page 30: The text of this presentation is at

AIDS NO AIDS

AB POS

AB NEG

Page 31: The text of this presentation is at

HIV NO HIV

AB POS

AB NEG

Page 32: The text of this presentation is at

NIAID Web site“Currently available HIV antibody tests are extraordinarily accurate, both in terms of sensitivity (the ability of the test to give a positive finding when a subject is truly HIV-infected) and specificity (the ability of the test to give a negative finding when a subject is truly HIV-free)”.

Page 33: The text of this presentation is at

“At present there is no recognized standard for

establishing the presence or absence of HIV-1 antibody in

human blood”

Abbott Laboratories1988, 1998

Page 34: The text of this presentation is at

The real purpose of scientific method is to make sure Nature hasn't misled

you into thinking something you don't actually know... One logical slip and an entire scientific edifice comes tumbling down. One false

deduction about the machine and you can get hung up indefinitely.

Robert Pirsig, Zen and the Art of Motorcycle Maintenance

Page 35: The text of this presentation is at