A same-nested PCR was used to re-amplify the amplicon of a hypervariable region of the HPV-16 L1 gene DNA in the postmortem blood and splenic tissue obtained at autopsy of a formerly healthy teenage girl who suffered ...A same-nested PCR was used to re-amplify the amplicon of a hypervariable region of the HPV-16 L1 gene DNA in the postmortem blood and splenic tissue obtained at autopsy of a formerly healthy teenage girl who suffered a sudden unexpected death in sleep 6 months after 3 intramuscular injections of a quadrivalent HPV vaccine, Gardasil?. A full autopsy analysis revealed no cause of death. The HPV-16 gene DNA detected in the postmortem materials was similar to the HPV-16 gene DNA fragments in Gardasil? in that both were in non-B-conformation, requiring nondegenerate GP6 and MY11 primers to re-amplify the PCR amplicon for detection and to generate a template useful for direct DNA sequencing. A sequence excised from the base-calling DNA sequencing electropherogram was analyzed by Basic Local Alignment Search Tool (BLAST) alignment and a 45 - 60 base sequence fully matched with a standard hypervariable region of the HPV-16 L1 gene retrieved from the National Center for Biotechnology Information database validated the correct genotyping for HPV- 16 L1 gene DNA. These naked non-proliferating HPV- 16 L1 gene DNA fragments appeared to be in the macrophages of the postmortem blood and spleen, and were protected from degradation by binding firmly to the particulate aluminum adjuvant used in vaccine formulation. The significance of these HPV DNA fragments of a vaccine origin found in post-mortem materials is not clear and warrants further investigation.展开更多
The issues of safety and efficacy of certain vaccines remains extremely contentious. The venues for this debate have included periodicals, documentary films, and an ever-increasing number of on-line sites. While debat...The issues of safety and efficacy of certain vaccines remains extremely contentious. The venues for this debate have included periodicals, documentary films, and an ever-increasing number of on-line sites. While debate in science is not only a common occurrence but a fundamental tenet of the scientific community, it only works when divergent opinions can be heard. When those who hold an opposing opinion are denigrated and/or marginalized by those holding the majority opinion such as in the issue of vaccination, where cultural authority for the issue is owned by the profession of medicine, both science and the public lose. What is often forgotten are the benefits derived from the questioning of drug safety that not only extends to the public but to physicians who rely on the truthfulness and accuracy of the information that is being supplied to them by manufactures and government agencies. While most physicians believe they are functioning in their patient’s best interest when making vaccine recommendations, these recommendations by in large have become a matter of rote and are made because most physicians have bought into the “vaccines are safe” mantra. What most physicians don’t realize is they have unknowingly been recruited by big pharma to assist in shutting down the vaccination debate. This suppression of vaccine opposition even among academics, is becoming more commonplace and will lead down a slippery slope that will silence opposition science, and the dangers that come with this. Those who question vaccine safety have been ostracized, misquoted and even made to appear mentally ill by those who hold the majority opinion on the issue. Physicians who question vaccine safety have had their licenses threatened or have been fired from positions. Tactics such as name calling and the use of terms such as pseudo-science, (even when the evidence being presented is from widely accepted peer-reviewed journals) or “conspiracy theorists” which has the effect of placing those holding the minority opinion in the category of such groups as 9/11 truthers, are not uncommon. Other methods of curtailing the presentation of opposing vaccine views have included pressuring venues not to allow anti-vaccination proponents to appear, or using the media to “expose” anti-vaccination groups as “crack-pots” while simultaneously presenting the majority opinion and the presenters as the sole arbiters on the issue. The more extreme elements of the pro-vaccine group will even make the statement that the issue is settled and there is no need for discussion. “Has there ever been a society which has died of dissent? Several have died of conformity in our lifetime.” Jacob Bronowski in Science and Human展开更多
Human papilloma virus(HPV) is sexually transmitted and associated with uterine cervix, vaginal, and vulvar cancers in females, oropharyngeal and anal cancer in both genders, and penile cancer in males. Moreover, genit...Human papilloma virus(HPV) is sexually transmitted and associated with uterine cervix, vaginal, and vulvar cancers in females, oropharyngeal and anal cancer in both genders, and penile cancer in males. Moreover, genital warts are benign tumors which are HPV-related and can occur in both genders. This is a review of HPV structure, HPV infection transmission, the global impact of HPV and its associated diseases, HPV vaccines and their efficacy and safety, public acceptance of HPV vaccines, the obstacles for its acceptance and strategies to address the barriers. Cervarix(a bivalent vaccine with protection against HPV types 16 and 18) and Gardasil(a quadrivalent vaccine with protection against HPV types 6, 11, 16 and 18) are 2 recommended vaccines. The longest follow up of 9.4 years has shown efficacy and protection of the vaccine against HPV types 16 and 18. The adverse effects have been minimal and the vaccine is considered safe. Numerous studies are conducted to follow the vaccinated individuals to better understand the effect of HPV vaccine on incidence of HPV-related cancers and precancerous lesions.展开更多
A low temperature (LoTemp?) polymerase chain reaction (PCR), conducted at cycling temperatures not to exceed 85℃and catalyzed by a novel highly processive HiFi? DNA polymerase with proofreading function, was used to ...A low temperature (LoTemp?) polymerase chain reaction (PCR), conducted at cycling temperatures not to exceed 85℃and catalyzed by a novel highly processive HiFi? DNA polymerase with proofreading function, was used to study the topological conformational changes of the human papillomavirus (HPV) L1 gene DNA fragments bound to the insoluble amorphous aluminum hydroxyphosphate sulfate (AAHS) adjuvant in the quadrivalent HPV vaccine, Gardasil?. L1 gene DNA fragments of HPV-11, HPV-18 and HPV-16 were detected in the AAHS particles by nested PCR, but all were lacking a region that was amplifiable by an MY09 degenerate primer. In addition, a pair of degenerate consensus GP6/MY11 primers was able to amplify a target segment of the HPV-11 L1 gene DNA and the HPV-18 L1 gene DNA bound to the AAHS particles as expected for any HPV DNA in the B-conformation. However, there was no co-amplification of the HPV-16 L1 gene DNA known to coexist in the same samples. The lack of co-amplification was verified by direct DNA sequencing of the PCR amplicons. The companion HPV-16 L1 gene DNA in the same sample required repeated PCRs with a pair of modified non-degenerate GP6/ MY11 primers for detection. This melting profile of the HPV-16 L1 gene DNA was similar to that of the HPV-16 L1 gene DNA recently discovered in the postmortem blood of a young woman who suffered a sudden unexpected death 6 months after Gardasil? vaccination. The findings suggest that the topological conformational changes in the HPV L1 gene DNA residues bound to the AAHS adjuvant may be genotype-related. The special non-B-conformation may prevent the HPV-16 L1 gene DNA from being degraded in the body of the vaccine recipients after in- tramuscular injection.展开更多
基金commissioned and sponsored by SANE VAX,Inc.for a future payment not to exceed one US dollar.
文摘A same-nested PCR was used to re-amplify the amplicon of a hypervariable region of the HPV-16 L1 gene DNA in the postmortem blood and splenic tissue obtained at autopsy of a formerly healthy teenage girl who suffered a sudden unexpected death in sleep 6 months after 3 intramuscular injections of a quadrivalent HPV vaccine, Gardasil?. A full autopsy analysis revealed no cause of death. The HPV-16 gene DNA detected in the postmortem materials was similar to the HPV-16 gene DNA fragments in Gardasil? in that both were in non-B-conformation, requiring nondegenerate GP6 and MY11 primers to re-amplify the PCR amplicon for detection and to generate a template useful for direct DNA sequencing. A sequence excised from the base-calling DNA sequencing electropherogram was analyzed by Basic Local Alignment Search Tool (BLAST) alignment and a 45 - 60 base sequence fully matched with a standard hypervariable region of the HPV-16 L1 gene retrieved from the National Center for Biotechnology Information database validated the correct genotyping for HPV- 16 L1 gene DNA. These naked non-proliferating HPV- 16 L1 gene DNA fragments appeared to be in the macrophages of the postmortem blood and spleen, and were protected from degradation by binding firmly to the particulate aluminum adjuvant used in vaccine formulation. The significance of these HPV DNA fragments of a vaccine origin found in post-mortem materials is not clear and warrants further investigation.
文摘The issues of safety and efficacy of certain vaccines remains extremely contentious. The venues for this debate have included periodicals, documentary films, and an ever-increasing number of on-line sites. While debate in science is not only a common occurrence but a fundamental tenet of the scientific community, it only works when divergent opinions can be heard. When those who hold an opposing opinion are denigrated and/or marginalized by those holding the majority opinion such as in the issue of vaccination, where cultural authority for the issue is owned by the profession of medicine, both science and the public lose. What is often forgotten are the benefits derived from the questioning of drug safety that not only extends to the public but to physicians who rely on the truthfulness and accuracy of the information that is being supplied to them by manufactures and government agencies. While most physicians believe they are functioning in their patient’s best interest when making vaccine recommendations, these recommendations by in large have become a matter of rote and are made because most physicians have bought into the “vaccines are safe” mantra. What most physicians don’t realize is they have unknowingly been recruited by big pharma to assist in shutting down the vaccination debate. This suppression of vaccine opposition even among academics, is becoming more commonplace and will lead down a slippery slope that will silence opposition science, and the dangers that come with this. Those who question vaccine safety have been ostracized, misquoted and even made to appear mentally ill by those who hold the majority opinion on the issue. Physicians who question vaccine safety have had their licenses threatened or have been fired from positions. Tactics such as name calling and the use of terms such as pseudo-science, (even when the evidence being presented is from widely accepted peer-reviewed journals) or “conspiracy theorists” which has the effect of placing those holding the minority opinion in the category of such groups as 9/11 truthers, are not uncommon. Other methods of curtailing the presentation of opposing vaccine views have included pressuring venues not to allow anti-vaccination proponents to appear, or using the media to “expose” anti-vaccination groups as “crack-pots” while simultaneously presenting the majority opinion and the presenters as the sole arbiters on the issue. The more extreme elements of the pro-vaccine group will even make the statement that the issue is settled and there is no need for discussion. “Has there ever been a society which has died of dissent? Several have died of conformity in our lifetime.” Jacob Bronowski in Science and Human
文摘Human papilloma virus(HPV) is sexually transmitted and associated with uterine cervix, vaginal, and vulvar cancers in females, oropharyngeal and anal cancer in both genders, and penile cancer in males. Moreover, genital warts are benign tumors which are HPV-related and can occur in both genders. This is a review of HPV structure, HPV infection transmission, the global impact of HPV and its associated diseases, HPV vaccines and their efficacy and safety, public acceptance of HPV vaccines, the obstacles for its acceptance and strategies to address the barriers. Cervarix(a bivalent vaccine with protection against HPV types 16 and 18) and Gardasil(a quadrivalent vaccine with protection against HPV types 6, 11, 16 and 18) are 2 recommended vaccines. The longest follow up of 9.4 years has shown efficacy and protection of the vaccine against HPV types 16 and 18. The adverse effects have been minimal and the vaccine is considered safe. Numerous studies are conducted to follow the vaccinated individuals to better understand the effect of HPV vaccine on incidence of HPV-related cancers and precancerous lesions.
文摘A low temperature (LoTemp?) polymerase chain reaction (PCR), conducted at cycling temperatures not to exceed 85℃and catalyzed by a novel highly processive HiFi? DNA polymerase with proofreading function, was used to study the topological conformational changes of the human papillomavirus (HPV) L1 gene DNA fragments bound to the insoluble amorphous aluminum hydroxyphosphate sulfate (AAHS) adjuvant in the quadrivalent HPV vaccine, Gardasil?. L1 gene DNA fragments of HPV-11, HPV-18 and HPV-16 were detected in the AAHS particles by nested PCR, but all were lacking a region that was amplifiable by an MY09 degenerate primer. In addition, a pair of degenerate consensus GP6/MY11 primers was able to amplify a target segment of the HPV-11 L1 gene DNA and the HPV-18 L1 gene DNA bound to the AAHS particles as expected for any HPV DNA in the B-conformation. However, there was no co-amplification of the HPV-16 L1 gene DNA known to coexist in the same samples. The lack of co-amplification was verified by direct DNA sequencing of the PCR amplicons. The companion HPV-16 L1 gene DNA in the same sample required repeated PCRs with a pair of modified non-degenerate GP6/ MY11 primers for detection. This melting profile of the HPV-16 L1 gene DNA was similar to that of the HPV-16 L1 gene DNA recently discovered in the postmortem blood of a young woman who suffered a sudden unexpected death 6 months after Gardasil? vaccination. The findings suggest that the topological conformational changes in the HPV L1 gene DNA residues bound to the AAHS adjuvant may be genotype-related. The special non-B-conformation may prevent the HPV-16 L1 gene DNA from being degraded in the body of the vaccine recipients after in- tramuscular injection.
