Inadvertent potential risk of neoadjuvant chemotherapy in cervical cancer.

Abstract:

:Randomized clinical trials comparing neoadjuvant chemotherapy (NAC) followed by surgery with initial surgery in cervical cancer reported conflicting results. We provided a hypothesis explaining the different outcomes between trials. NAC was reported to make a lymph node metastasis smaller. Smaller tumors are hard to detect and potentially undetected at pathologic examination. Undetected metastasis would lead to an erroneous exclusion of high-risk patients from adjuvant therapy. An erroneous exclusion would lead to a recurrence. This harmful concealing effect of NAC could negate the potentially beneficial effect of NAC and the conflicting results of trials could be the result of the balance between harmful and beneficial effect of NAC. Because the concealing effect of NAC can be reversed by adjuvant therapy, trials comparing NAC followed by surgery with initial surgery in which all patients in both arms received adjuvant therapy reported positive result. However, in a trial in which only patients with lymph node or parametrial involvements received adjuvant therapy, the concealing effect was not reversed by adjuvant therapy and reported negative result. Our empirical data showed that patients who underwent NAC followed by surgery and were classified as low-risk based on pathologic parameters had unexpectedly high recurrence rate. To evaluate our hypothesis, a trial comparing a conventional pathologic examination with a more sophisticated examination such as ultrastaging in patients with cervical cancer who received NAC followed by surgery would be necessary. If our hypothesis is proven, trials considering the concealing effect of NAC should be performed to accurately evaluate the role of NAC in cervical cancer.

journal_name

Med Hypotheses

journal_title

Medical hypotheses

authors

Kim K,Kim MJ,Chung HH,Choi SC,Ryu SY,Kim JW,Park NH,Song YS,Kang SB

doi

10.1016/j.mehy.2009.05.026

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

1005-7

issue

6

eissn

0306-9877

issn

1532-2777

pii

S0306-9877(09)00378-8

journal_volume

73

pub_type

杂志文章
  • Does chronic essential fatty acid deficiency constitute a pro-tumorigenic condition?

    abstract::Many experimental, clinical and epidemiological data indicate that n-3 and n-6 essential fatty acids are therapeutic nutrients which may delay the development as well as improve the course of cancer. The present hypothesis correlates well with these data and it is proposed that chronic essential fatty acid deficiency,...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/s0306-9877(97)90024-4

    authors: Eynard AR

    更新日期:1997-01-01 00:00:00

  • Parkinson disease classification using one against all based data sampling with the acoustic features from the speech signals.

    abstract::Parkinson's disease (PD) is a long-term degenerative disease that primarily affects the motor system of the central nervous system. This disease is difficult to diagnose and is one of the common diseases in the public. In this paper, we have proposed a novel data sampling method for the classification of Parkinson dis...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2020.109678

    authors: Polat K,Nour M

    更新日期:2020-03-16 00:00:00

  • Circumstances favoring jaw tumors in Burkitt's lymphoma.

    abstract::In Burkitt's lymphoma, dental structures may provide the route for Epstein-Barr virus (EBV) in saliva to penetrate the jaws, thereby promoting tumor formation. In children, EBV could enter tooth sockets exposed following deciduous tooth loss and thereby contact jaw marrow lymphocytes stimulating neoplastic transformat...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/0306-9877(83)90105-6

    authors: Lorber M

    更新日期:1983-12-01 00:00:00

  • Glatiramer acetate (GA, Copolymer-1) an hypothetical treatment option for Rett syndrome.

    abstract::Rett syndrome (RTT) is an X-linked dominant postnatal severe and disabling neurodevelopmental disorder which is the second most common cause for genetic mental retardation in girls and the first pervasive disorder with a known genetic basis. The syndrome is primarily caused by mutations in the Methyl CpG binding prote...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2010.09.015

    authors: Ben-Zeev B,Aharoni R,Nissenkorn A,Arnon R

    更新日期:2011-02-01 00:00:00

  • Shellfish consumption: a major risk factor for colorectal cancer.

    abstract::In the last decades, relevant efforts have been made to reduce the cancer incidence in the European Union. The prevention programmes against cancer have obtained satisfactory results except for colorectal cancer (CRC). Identification of risk factors is primordial to plan preventive strategies for CRC. We hypothesize t...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2007.03.041

    authors: Manerio E,Rodas VL,Costas E,Hernandez JM

    更新日期:2008-01-01 00:00:00

  • Vanishing honey bees: Is the dying of adult worker bees a consequence of short telomeres and premature aging?

    abstract::Einstein is often quoted to have said that without the bee, mankind would have but 4years to live. It is highly unlikely that he made this comment, which was even mentioned in a Lancet article on honey bees. However, the current vanishing of the bees can have serious consequences for human health, because 35% of the h...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2010.04.003

    authors: Stindl R,Stindl W Jr

    更新日期:2010-10-01 00:00:00

  • Is 'senescence' of diploid cells an ad hoc mechanism suppressing 'replicon' or not?

    abstract::So-called 'limited life span' of diploid cells does not depend on their unresponsiveness to growth factors from the data obtained by complete protein-free culture of tumor cells. Limited proliferation (called limited life span) of diploid cells is one of the 'ad-hoc' negative regulatory mechanisms in animals, and can ...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/0306-9877(93)90090-d

    authors: Chigira M,Watanabe H

    更新日期:1993-10-01 00:00:00

  • A new perspective on "the placebo effect": untangling the entanglement.

    abstract::It is generally accepted that a placebo in a standard, randomized, controlled trial (RCT), being an inert substance, cannot itself produce any effects. Yet, the magnitude of the placebo effect has increased remarkably in the last three decades. We propose that macroscopic information entanglement potentially explains ...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2011.06.047

    authors: Manek NJ,Tiller WA

    更新日期:2011-10-01 00:00:00

  • Post-infarct left ventricular thrombosis is mechanistically related to ventricular wall rupture.

    abstract::Left ventricular thrombus (LVT) after acute myocardial infarction (AMI) remains to be a common complication bearing adverse prognostic implication. Majority of LVT occurs within the first week after AMI. Over decades, the regional stasis of blood flow is regarded as the main reason for LVT formation. Here we hypothesi...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2020.109938

    authors: Ma S,Lu Q,Hu H,Du XJ

    更新日期:2020-11-01 00:00:00

  • Clonal expansion of multiphenotypic Epstein-Barr virus-infected lymphocytes in chronic active Epstein-Barr virus infection.

    abstract::Chronic active Epstein-Barr virus (EBV) infection has been recognized as clonal non-neoplastic lymphoproliferative diseases. However, some reports of cases with a multiphenotypic expansion of EBV-infected lymphocytes give rise to questions of how EBV infects multiphenotypic lymphocytes and whether chronic active EBV i...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2004.03.012

    authors: Endo R,Yoshioka M,Ebihara T,Ishiguro N,Kikuta H,Kobayashi K

    更新日期:2004-01-01 00:00:00

  • P53 possibly upregulates the expression of CD58 (LFA-3) and CD59 (MIRL).

    abstract::P53 is an oncosuppressor protein which acts via transcriptional and non-transcriptional mechanisms. The transcriptional function of p53 is mediated by specific responsive elements (RE). In the present study we found one perfect p53 RE located in the first intron of the gene encoding for CD58 (lymphocyte function Antig...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1054/mehy.2001.1476

    authors: Sampaziotis F,Kokotas S,Gorgoulis VG

    更新日期:2002-02-01 00:00:00

  • Can hyper-synchrony in meditation lead to seizures? Similarities in meditative and epileptic brain states.

    abstract::Meditation is used worldwide by millions of people for relaxation and stress relief. Given sufficient practice, meditators may also experience a variety of altered states of consciousness. These states can lead to a variety of unusual experiences, including physical, emotional and psychic disturbances. This paper high...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2014.07.015

    authors: Lindsay S

    更新日期:2014-10-01 00:00:00

  • Breastfeeding: A standard or an intervention? Review of systematic reviews.

    abstract::Clinical trials designed to answer treatment-related questions typically compare an intervention group that receives a drug or other intervention to a control group that serves as a standard against which results of the intervention are evaluated. An observed divergence from this trend in research papers on breastfeed...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2020.109737

    authors: Dimnjakovic J,Poljicanin T,Svajda M

    更新日期:2020-08-01 00:00:00

  • Is repetitive wounding and bone marrow-derived stem cell mediated-repair an etiology of lung cancer development and dissemination?

    abstract::The prevailing view of lung cancer is multi-step progression of normal cells into cancer cells through gain of function oncogenes coupled with loss of tumor suppressor genes. This progression of genetic damage ultimately results in the hallmarks of cancer. This theory has strong support from studies finding genetic da...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2005.12.050

    authors: Haura EB

    更新日期:2006-01-01 00:00:00

  • Blue light fromelectronic devicesmay bean important factorforvitreousfloaters.

    abstract::At present, researchers are still debating the effect of blue light on the eyes.Studies have shown thatwhile blue lighthelpsto maintain normal biological rhythms,excessive blue light radiation mayinduce fundus lesions. The preliminary survey shows that the incidence of vitreous floaters is high among digital device us...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2020.109698

    authors: Chen JT,Wu HJ

    更新日期:2020-06-01 00:00:00

  • Secondary to excessive melatonin synthesis, the consumption of tryptophan from outside the blood-brain barrier and melatonin over-signaling in the pars tuberalis may be central to the pathophysiology of winter depression.

    abstract::Seasonal affective disorder is defined as recurrent episodes of major depression, mania, or hypomania with seasonal onset and remission. In this class of mood disturbances, a unipolar major depressive disorder known as winter depression is common in populations living in northern latitudes far from the equator. Winter...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2016.11.020

    authors: Pereira JC Jr,Pradella Hallinan M,Alves RC

    更新日期:2017-01-01 00:00:00

  • Pineal attrition, loss of cognitive plasticity, and onset of puberty during the teen years: is it a modern maladaptation exposed by evolutionary displacement?

    abstract::Cognitive plasticity, a developmental trait that promotes acquisition of complex skills such as language or playing musical instruments, diminishes substantially during puberty. The loss of plasticity has been attributed to surge of sex steroids during adolescence, but the phenomenon remains poorly understood. We hypo...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2004.07.027

    authors: Yun AJ,Bazar KA,Lee PY

    更新日期:2004-01-01 00:00:00

  • Intrinsic radio-sensitivity of tumours to low let radiations: a mathematical model in LQ formalism.

    abstract::Intrinsic radio-sensitivity is the determinant of differential response of tumours to low LET ionising radiations. The probabilistic DNA fibril both model shows intrinsic radio-sensitivity factor [I] as function of nuclear diameter (Nd) and intra cellular hydrogen ion concentration [H+]. Linking probabilities of letha...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2013.09.031

    authors: Mohammed SA

    更新日期:2013-12-01 00:00:00

  • Energy metabolism in cancer cells: how to explain the Warburg and Crabtree effects?

    abstract::Cancer cells have a greater need for energy and a ready supply of the building blocks necessary for the synthesis of macromolecules (nucleotides, protein, lipids) in order to duplicate genome and biomass. The hypothesis can be postulated that those precursors for synthetic processes, which can only be furnished by gly...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2012.06.002

    authors: Dell' Antone P

    更新日期:2012-09-01 00:00:00

  • The cancer process as a type of immunocomplex hypersensibility involving C3b, natural killer cytotoxicity and antibody-dependent cell cytotoxicity: proposals for tumour immunotherapy and vaccine.

    abstract::I have previously assumed that stem tumour cells are 'para-embryonal cells' (PECs) poor or missing in major histocompatibility complex (MHC) antigens. PECs might induce adjoining differentiated hyperplastic cells to also express tumoral phenotype and properties, thus transforming them into 'differentiated para-embryon...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/s0306-9877(98)90213-4

    authors: Manzo G

    更新日期:1998-05-01 00:00:00

  • Towards more efficacious chemotherapy of trypanosomiasis: combination of alpha-difluoromethylornithine (DFMO) with reactive oxygen generating drugs.

    abstract::Trypanosomiasis (whether African sleeping sickness, or American Chaga's disease) is caused by an infection with a protozoan parasite, i.e. the trypanosome. This carries fatal sequences in the untreated host. Currently available chemotherapeutic drugs (some of which cure by involving reactive oxygen species (ROS] are n...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/0306-9877(91)90142-l

    authors: Eze MO

    更新日期:1991-11-01 00:00:00

  • Mechanism underlying cranial nerve rhizopathy.

    abstract::The cranial nerve rhizophathy, commonly presented with trigeminal neuralgia (TN) or hemifacial spasm (HFS), is a sort of hyperexcitability disorders with higher incidence in senior Asian. In this paper, a novel hypothesis on the pathogenesis is proposed and with which some clinical phenomena are explained. In those wi...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2020.109801

    authors: Liu M,Zhong J

    更新日期:2020-09-01 00:00:00

  • Fibromyalgia and unexplained widespread pain: The idiopathic cerebrospinal pressure dysregulation hypothesis.

    abstract::Fibromyalgia (FM) is a debilitating, widespread pain disorder that is assumed to originate from inappropriate pain processing in the central nervous system. Psychological and behavioral factors are both believed to underlie the pathogenesis and complicate the treatment. This hypothesis, however, has not yet been suffi...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2017.12.006

    authors: Hulens M,Dankaerts W,Stalmans I,Somers A,Vansant G,Rasschaert R,Bruyninckx F

    更新日期:2018-01-01 00:00:00

  • The function of the gallbladder as a lesser biliary circulation.

    abstract::The function of the gallbladder is questioned in a hypothesis postulating that all bile which enters this reservoir is totally absorbed to the liver and none of it flows back to the cystic duct and duodenum. Cholecystokinesis is believed to increase and maintain a gradient of intravesical pressure which increases the ...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/0306-9877(86)90006-x

    authors: Al-Hilli F

    更新日期:1986-10-01 00:00:00

  • Reperfusion injury as a target for diminishing infarct size.

    abstract::Therapies for preventing reperfusion injury (RI) have been widely studied. However, the attempts to transfer cardioprotective therapies for reducing RI from experiments into clinical practice have been so far unsuccessful. Pathophysiological mechanisms of RI are complicated and compose of many pathways e.g. hypercontr...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2020.109558

    authors: Barzyc A,Łysik W,Słyk J,Kuszewski M,Zarębiński M,Wojciechowska M,Cudnoch-Jędrzejewska A

    更新日期:2020-04-01 00:00:00

  • Psychiatric aspects of jet lag: review and hypothesis.

    abstract::Jet lag is a travel-induced circadian rhythm phenomenon that afflicts healthy individuals following long- distance flights through several time zones. The typical jet-lag manifestations - insomnia during local sleep time, day fatigue, reduced concentration, irritability, and exhaustion with mild depression - are attri...

    journal_title:Medical hypotheses

    pub_type: 杂志文章,评审

    doi:10.1054/mehy.2000.1094

    authors: Katz G,Durst R,Zislin Y,Barel Y,Knobler HY

    更新日期:2001-01-01 00:00:00

  • Fast DNA sequencing.

    abstract::A method for fast nucleotide sequencing is described. It is based in the selection of well-known small oligomers able to be hybridized with the unknown target. The selected oligomers are afterwards ordered following a simple statistical approach. The use of capillary electrophoresis for the analysis is emphasized. ...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1054/mehy.1999.1026

    authors: Figureau A,Soto MA,Tohá J

    更新日期:2000-07-01 00:00:00

  • An animal analogue of forced unilateral nostril breathing: relevance for physiology and pharmacology.

    abstract::Since forced unilateral nostril breathing activates the contralateral brain hemisphere, an animal analogue of this technique could be provided by methylmethacrylate gluing large plastic pellets in either the right or left nostrils in a group of rats. A large number of physiological, pharmacological, and immunological ...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/0306-9877(89)90047-9

    authors: Backon J

    更新日期:1989-03-01 00:00:00

  • Static magnetic field combined with functional appliances: a new approach to enhance mandibular growth in Class II malocclusion.

    abstract::Class II malocclusion is one of the most common orthodontic problems. The main aetiology of Class II malocclusion is mandibular retrognathia. A variety of functional appliances have been used to stimulate mandibular growth in adolescence, however, the effects remain unsatisfactory. Therefore, new approaches are in nee...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1016/j.mehy.2008.08.029

    authors: Li Y,Yang P,Fan X,Wang J,Liu J,Zhao Z,Zhao M

    更新日期:2009-03-01 00:00:00

  • Biophysical body-brain-mind unity: theory and practice.

    abstract::A novel substance-attributed biophysical theory of brain-mind unity is presented. We separate spiritualism and matters of the soul from the medical sphere. Biophysical principles are responsible for the body's operational regimen (BOR) in the homeostatic state which allows for materialization and emergence of the mind...

    journal_title:Medical hypotheses

    pub_type: 杂志文章

    doi:10.1054/mehy.1999.0852

    authors: Naisberg Y

    更新日期:2000-03-01 00:00:00