1.Antiphospholipid Syndrome and Vascular Ischemic (Occlusive) Diseases: An Overview.
Yonsei Medical Journal 2007;48(6):901-926
Antiphospholipid syndrome (APS) is primarily considered to be an autoimmune pathological condition that is also referred to as "Hughes syndrome". It is characterized by arterial and/or venous thrombosis and pregnancy pathologies in the presence of anticardiolipin antibodies and/or lupus anticoagulant. APS can occur either as a primary disease or secondary to a connective tissue disorder, most frequently systemic lupus erythematosus (SLE). Damage to the nervous system is one of the most prominent clinical constellations of sequelae in APS and includes (i) arterial/ venous thrombotic events, (ii) psychiatric features and (iii) other non- thrombotic neurological syndromes. In this overview we compare the most important vascular ischemic (occlusive) disturbances (VIOD) with neuro-psychiatric symptomatics, together with complete, updated classifications and hypotheses for the etio-pathogenesis of APS with underlying clinical and laboratory criteria for optimal diagnosis and disease management.
Antibodies, Antiphospholipid/immunology
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Antiphospholipid Syndrome/diagnosis/*immunology/therapy
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Arterial Occlusive Diseases/diagnosis/*immunology/therapy
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Cerebrovascular Disorders/diagnosis/immunology/therapy
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Humans
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Lupus Erythematosus, Systemic/diagnosis/immunology/therapy
2.Brain metastases of melanoma--mechanisms of attack on their defence system by engineered stem cells in the microenvironment.
Borislav D DIMITROV ; Penka A ATANASSOVA ; Mariana I RACHKOVA
Journal of Zhejiang University. Science. B 2007;8(9):609-611
This report gives a better emphasis on the role of targeted effectors (e.g. a combination of 5-FC with CD-NSPCs as compared to the application of NSPCs alone) and how such delivery of pro-drug activating enzymes and other tumor-killing substances may overcome melanocytic defence system, interact with and promote the host defence and immune response modulations not only in melanoma but, potentially, in other highly-metastatic cancers.
Brain Neoplasms
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immunology
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surgery
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Humans
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Immunity, Innate
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immunology
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Melanoma
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immunology
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secondary
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surgery
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Models, Immunological
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Stem Cell Transplantation
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methods
3.Cyclic patterns of incidence rate for skin malignant melanoma: association with heliogeophysical activity.
Borislav D DIMITROV ; Mariana I RACHKOVA ; Penka A ATANASSOVA
Journal of Zhejiang University. Science. B 2008;9(6):489-495
BACKGROUNDOur previous studies revealed cyclicity in the incidence rate of skin malignant melanoma (SMM; ICD9, Dx:172) in the Czech Republic (period T=7.50-7.63 years), UK (T=11.00 years) and Bulgaria (T=12.20 years). Incidences compared with the sunspot index Rz (lag-period dT=+2, +4, +6, +10 or +12 years) have indicated that maximal rates are most likely to appear on descending slopes of the 11-year solar cycle, i.e., out of phase. We summarized and explored more deeply these cyclic variations and discussed their possible associations with heliogeophysical activity (HGA) components exhibiting similar cyclicity.
METHODSAnnual incidences of SMM from 5 countries (Czech Republic, UK, Bulgaria, USA and Canada) over various time spans during the years 1964-1992 were analyzed and their correlations with cyclic Rz (sunspot number) and aa (planetary geomagnetic activity) indices were summarized. Periodogram regression analysis with trigonometric approximation and phase-correlation analysis were applied.
RESULTSPrevious findings on SMM for the Czech Republic, UK and Bulgaria have been validated, and cyclic patterns have been revealed for USA (T=8.63 years, P<0.05) and Canada (Ontario, T=9.91 years, P<0.10). Also, various 'hypercycles' were established (T=45.5, 42.0, 48.25, 34.5 and 26.5 years, respectively) describing long-term cyclic incidence patterns. The association of SMM for USA and Canada with Rz (dT=+6 and +7 years, respectively) and aa (dT=-10 and +9 years, respectively) was described. Possible interactions of cyclic non-photic influences (UV irradiation, Schumann resonance signal, low-frequency geomagnetic fluctuations) with brain waves absorbance, neuronal calcium dynamics, neuro-endocrine axis modulation, melatonin/serotonin disbalance and skin neuro-immunity impairment as likely causal pathways in melanoma appearance, were also discussed.
CONCLUSIONThe above findings on cyclicity and temporal association of SMM with cyclic environmental factors could not only allow for better forecasting models but also lead to a better understanding of melanoma aetiology.
Cosmic Radiation ; adverse effects ; Female ; Forecasting ; Humans ; Male ; Melanoma ; epidemiology ; etiology ; Models, Biological ; Neoplasms, Radiation-Induced ; epidemiology ; etiology ; Periodicity ; Regression Analysis ; Skin Neoplasms ; epidemiology ; etiology ; Solar Activity