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Japanese research links HPV vaccine to brain damage

Health Impact News Editor Comments

Japan is one country that is questioning the HPV vaccine due to so many reports of serious side effects. The Japanese government has stopped recommending it.

So it is not surprising that the Japanese Society of Internal Medicine published their own investigations into the HPV vaccine and found “neurological manifestations” associated with the vaccine.

This kind of medical research cannot be found in the U.S., where the HPV vaccine Gardasil is seeing record sales, and side effects are generally censored by the media and medical profession.

Acute Disseminated Encephalomyelitis Following Immunization with Human Papillomavirus Vaccines

by Dr. Makoto Yoneda
Graduate School of Nursing and Social Welfare Sciences, Fukui Prefectural University, Japan

The immunization of adolescent girls with the human papilloma virus (HPV) vaccines, a bivalent CervarixⓇ and a quadrivalent GardasilⓇ, has been widely introduced to prevent uterine and cervical cancer (1). Since the regulatory approval of the first quadrivalent HPV vaccine in 2006 and later the bivalent HPV vaccine, as of 2011, about 120 million doses have been distributed worldwide (1). Since 2010, both vaccines have been introduced for administration to adolescent girls in Japan. However, with the rise in the number of subjects receiving this vaccine, some adverse effects have also started to be reported in Japan. These adverse effects comprise varied clinical manifestations, such as orthostatic intolerance; postural tachycardia syndrome; pain or coldness of ambiguous origin in the limbs, as with complex regional pain syndrome; involuntary movements; abnormal behavior resembling psychosis; headaches; general fatigue; Guillain-Barré syndrome; acute cerebellar ataxia; and acute disseminated encephalomyelitis (ADEM) (2-6).

Sekiguchi et al. reported two cases of ADEM after the administration of HPV vaccines in this issue (7). Both patients presented with neurological symptoms after the second administration of the HPV vaccine. Their symptoms improved after the intravenous administration of methylprednisolone, with no sign of relapse. The authors estimated a prevalence of 0.05 per 100,000 for ADEM after the HPV vaccine administration in Japan, according to the data from the Pharmaceutical and Medical Devices Agency (PMDA; c.f. 0.1-0.2 per 100,000 of post-vaccination ADEM in total) (8), and emphasized the importance of further data accumulation in their survey of the relationship between the HPV vaccines and ADEM (7). In a large epidemiologic study, ADEM preceded by vaccination was infrequent but not rare (around 5%) (9) and tended to occur after the booster vaccination rather than after the first application, just as in the cases reported in this issue (6, 7).

In general, immunization via vaccines can induce experimental allergic encephalitis (EAE), probably due to the molecular mimicry between the vaccine epitope and neural antigens with the subsequent activation of cross-reactive immune cells (10, 11). Alternatively, autoimmune/inflammatory syndrome induced by adjuvants (ASIA) has also been proposed to be a potential pathophysiology of the adverse effects noted with HPV vaccines (12). In particular, aluminum (Al) is commonly used in the HPV vaccines as an adjuvant to prolong the duration of the vaccine effects. Indeed, behavioral abnormalities have been observed in young female mice following administration of aluminum adjuvants with the HPV vaccine (13).

These experimental data support the relationship between neurological manifestations and HPV vaccines.

Read the full article here.