Vladimir N Anisimov

N.N. Petrov Research Institute of Oncology, Saint-Petersburg, Russia · Department of Carcinogenesis and Oncogerontology

Prostate cancer (PCa) is one of the most common male malignancies worldwide. In the current study, we evaluated the effects of a natural deep eutectic solvent (NADES) extract of Pueraria lobata roots rich in isoflavones (ISF) and Phaffia rhodozyma extract rich in astaxanthin (ASX) on an N-methyl-N-nitrosourea plus testosterone PCa model in rats. IS...

BACKGROUND A standard approach to study the anticancer activity of novel drugs is their testing in animals with inoculated tumors, which has some limitations. An alternative is the use of spontaneous or carcinogen-induced tumor models as they have better translation potential. The carcinogen-induced and transgenic tumor models were used to assess t...

The study investigated antigenotoxic and antimutagenic activity of novel lignin-derived polyphenolic composition (BP-C2) with ammonium molybdate towards cyclophosphamide and dioxidine in the bone marrow, blood and liver cells of BALB/c mice. BP-C2 was given to mice via gavage at 60, 80 and 120 mg/kg once 1 hour before single intraperitoneal injecti...

The article deals with the problem of modeling the process of providing the state support aimed senior citizens. Its structuring is substantiated with the allocation of individual modules - functional stages and the relevant typed statuses of patients. The influence of the main groups of factors on the formation of personal packages of services, in...

Human lifespan is known to correlate positively with education level. In the present paper, it is explored whether there are significant differences in lifespan among those whose education may be reasonably rated as the highest possible, i.e. among scholars referred to different scientific disciplines. The publications where the lifespans of schola...

The article presents an innovative concept for aging prevention of older citizens based on using elements of the International Classification of Functioning, Disability and Health which taking into account the influence of aging processes on changes in health and social adaptation of older citizens. The functional features of the departmental syste...

The most common treatment for menopausal syndrome is menopausal hormone therapy (MHT), however, the safety of MHT, due to the risk of developing and recurrent breast cancer (BC), is still a matter of debate. The review presents the results of randomized cohort studies of this issue. It has been shown that MHT increases the risk of developing of bre...

Introduction. Circadian rhythms are an adaptational mechanism to day-night cycle. At the cellular level rhythms are supported by oscillations of transcription of Bmal1, 2, Clock and Npas2, Per1-3, Cry1, 2 clock genes; in the organism rhythms are synchronized with melatonin, the "hormone of darkness". Reliable data have been obtained that disruption...

Purpose of the study: to review in vivo studies on the relationship and role of various molecular genetic components of the circadian rhythm system in the initiation and development of malignant neoplasms. in contrast to clinical and epidemiological studies, animal models, including transgenic animal models, can model various changes and disturbanc...

Aim: Alterations in circadian rhythms caused by tumor growth are thought to be clinically relevant as they affect the prognosis and treatment response. We aimed to evaluate the chronotherapeutic approach in rats with ovarian cancer receiving cisplatin intravenously (IV) or with hyperthermic intraperitoneal chemoperfusion (HIPEC) and to assess dail...

The narrative review addresses the evidence that physical activity can improve the results of prevention and treatment and of the conditions that feature increased risks of their development with aging. The main attention is paid to cancer and problems arising because of physical activity limitations associated with COVID-19 pandemic. To promote ph...

Polymorphisms of neurotransmitter metabolism genes were studied in patients with prostate cancer (PC) characterized by either reduced or extended serum prostate-specific antigen doubling time (PSADT) corresponding to unfavorable and favorable disease prognosis respectively. The ‘unfavorable prognosis’ group (40 cases) was defined by PSADT ≤ 2 month...

Lessons learned: Melatonin did not increase the efficacy of systemic chemotherapy in melanoma. Metformin did not increase the efficacy of systemic chemotherapy in melanoma. Background: Current data support the possibility of antitumor activity of melatonin and metformin. Methods: From March 2014 to December 2016, 57 patients with disseminated...

The evaluation of the safety of a drug in rodents that may be used as geroprotectors is a challenge of current times. In the paper, we discuss approaches to long-term assays for selection of potent aging delay drugs for humans. Priority is given to methods combining evaluation of carcinogenic safety and life-spanning potential. The use of such meth...

The article discusses the problems of determining the need of citizens of older age groups in complex medical, social and psychological assistance in the framework of the implementation of a personalized approach to the service provision. The concept of an integral assessment of the biopsychosocial status of older citizens has been introduced. Base...

The genotoxic and antigenotoxic potential of BP-C2, a novel lignin-derived polyphenolic composition with ammonium molybdate, was investigated as a radioprotector/radiomitigator for civil applications and as a medical countermeasure for radiation emergencies. Using the alkaline comet assay and methyl methanesulfonate (MMS, 40 mg/kg) as the DNA-dama...

Background: The antitumor and immunomodulating activities of melatonin are widely known. These activities are based upon the multifactorial mechanism of action on various links of carcinogenesis. In the present paper, the long-term results of the clinical use of melatonin in the combined treatment of patients with prostate cancer of various risk g...

The cell resistance to apoptosis can be related to the activity of cytokine-dependent signaling. So, the aim of the work is to investigate the mechanisms of cytokine-dependent FAS/TNF-mediated regulation of apoptosis of neurosecretory cells in the physiological and pathological (overexpression of the oncogene HER-2/Neu) aging. HER2/Neu transgenic a...

Introduction: The effects of chemotherapy are known to depend on the time of administration. Circadian rhythms are disturbed in tumors and in tumor bearers. Agents involved in controlling the circadian rhythms (chronobiotics) potentially can modify the outcomes of chemotherapeutics administered at different times of the day. Pineal hormone melaton...

The connection between circadian rhythms and cancer is bilateral at the body and cellular level. Negative impact of tumor development on circadian rhythms represents one of its aspects. Materials and methods. 16 FVB/N and 16 FVB/N transgenic HER2/neu female mice were used in the experiment. 4 mice of each line were euthanized at ZT0 (light switch-o...

Goals: The main goal was to compare the informativity of breast imaging techniques (ultrasound with sonoelastography, mammography, SPECT-CT) with stereotactic 12-point tumor bed core biopsy after neoadjuvant therapy and prior to surgical excision of the residual tumor. Materials and methods: The study was conducted at the Department of Breast Tumor...

Currently, the actual problem is the correction of motor, cognitive and psychoemotional disorders in physiological aging, as well as in various pathological processes that accompany aging and accelerate it. In this regard, it became necessary to search for drugs that can restore age-related disorders of the brain. The aim of the study was to evalua...

The publication continues to consider the cause-subsequent relationships of low efficiency of the state policy in the field of prolonging the period of active longevity altogether with unsystematic approaches to the formation and implementation of state programs. In the context of the analysis of the reasons for the insufficient effectiveness of ex...

The article discusses the causal relationship between the low efficiency of state policy in extending the period of active longevity. It is characterized by the absence of a correlation between basic and applied research in the field of aging and the use of an unsystematic approach to the development, implementation of targeted federal and regional...

The article examines the outlook and challenges relating to the provision of system-based support of healthcare providers and social services in the course of delivering their healthcare, mental health and social services to elderly people, in particular amidst a crisis, such as the COVID-19 pandemic. The article gives the definition of integrated...

The article examines the challenges of creating a system of integrated health and social care for elderly people (the System) in Russia, these challenges being of particular significance in the light of the negative effects of the COVID-19 pandemic on the quality of life and mental and general health of elderly people, which need to be mitigated wi...

Aging can increase cancer incidence because of accumulated mutations that initiate cancer and via compromised body control of premalignant lesions development into cancer. Relative contributions of these two factors are debated. Recent evidence suggests that the latter is rate limiting. In particular, hyperglycemia caused by compromised body contro...

Raman scattering spectra of metformin hydrochloride, one of the most widely used oral anti-diabetic drugs which also possesses anti-aging and anti-tumor properties, have been obtained by high-resolution and high-sensitivity Raman-scattering technique. It is established that rather narrow (4–10 cm –1 ) spectral lines of molecular vibrations are obse...

Background According to in vitro/in vivo studies both melatonin (MLT) and metformin (MTF) may exhibit an antitumor effect. Furthermore, in accordance to epidemiological studies MTF reduces the risk of developing breast cancer (BC) among patients with diabetes mellitus; as well as “light at night”can inhibit endogenic MLT synthesis and increase risk...

Background The antitumor effect of melatonin (MLT) and metformin (MTF) has been shown in vitro/in vivo. According to recent data both MLT and MTF may become a new drug which can be used in combination with standard cancer treatment, however, this hypothesis needs confirmation in clinical trials. Methods A total of 54 patients with estrogen recepto...

We studied the effect of prolonged absence of a photoperiodic signal (constant lighting and constant darkness) on the changes of digestive enzymes' activity in late postnatal ontogenesis of rats. Age-related alterations are characterized as a change in activity of enzymes, as well as a redistribution of the functional activity between the amylo- an...

Survival curves were approximated and analyzed based on experimental data on the effect of different polyphenolic compounds on mouse lifespan with the Gompertz model in its minimal variant, which excludes the parameters of sample heterogeneity and age-independent mortality. Vectors from the control data towards the experimental data were plotted on...

We studied neuronal death in the sensorimotor cortex, hippocampus, and supraoptic and paraventricular nuclei of the hypothalamus and dynamics of HER-2/neu expression in late ontogenesis in young and old transgenic HER-2/neu mice. Wild-type FVB/N mice served as the control. The intensity of apoptosis (TUNEL) and HER-2/neu expression (Western blottin...

The goal of this paper was to estimate the predictive value of kinetic parameters of tumor growth in 109 prostatic cancer (PCa) patients with the morphologically verified diagnosis. Results: The cell loss factor, calculated on the basis of Ki-67 values, and the PSA doubling time, proved to be an important prognostic parameter. A cumulative comparat...

Melatonin is subcutaneously administered in a single dose of 1.2 μg to 129/Sv mice at days 3, 5, and 7 after birth, and the mice are observed until natural death. In adult males, a decrease in the body weight and a reduction of the contribution of lung lesions detected during postmortal autopsy to mortality are detected. In adult females, an increa...

The review summarizes the modern knowledge of the impact of day-night, light-darkness rhythm disorders on the aging process and on the risk of development of the age-related conditions. Significant evidence has been obtained of that the constant artificial illumination and the daylight of the North has a stimulating effect on the occurrence and de-...

Considering emerging yet contradictory data on circadian rhythms disruption and its effects on tumor initiation and progression, we performed in vivo study to evaluate changes (if any) in clock genes expression in tumor compared to intact tissues as well as to see if tumor development affects normal tissues in tumor-bearing animals. The study was p...

IGF1 signaling is supposedly a key lifespan determinant in metazoans. However, controversial lifespan data were obtained with different means used to modify IGF1 or its receptor (IGF1R) expression in mice. The emerging puzzle lacks pieces of evidence needed to construct a coherent picture. We add to the available evidence by using the Gompertz mode...

This study aimed to evaluate the effect of lignin-derived polyphenolic composition BP-C3 on the efficacy and hematological toxicity of cyclophosphamide (CPA). Male and female Swiss-H derived mice bearing benzo[a]pyrene-induced soft tissue sarcomas were treated with CPA 300 mg/kg, BP-C3 75 mg/kg, or a combination. Tumor growth inhibition in male mic...

Clock genes (C G) are responsible for adapting body to diurnal changes in environmental conditions (circadian cycles, C C) . Discordances caused by changes in both environmental CC (shift work, excess light at night, or jet lag) and bodily C C, in particular due to changes in CG expression, increase the risk of cancer, the breast being the most vul...

To analyze experimental data on the effect of various polyphenolic compounds on lifespan of mice, we approximated survival curves with the Gompertz model in its minimal form, which does not account for the heterogeneity of samples and the age-independent mortality. The plots of regressions of log0 (logarithm of the initial mortality) on  (the rat...

Data on lifespan and some reasons of musicians' death of the XX century are presented in this article. The mean age of death (MAD) in male musicians (n=20 218) was 67,8 years, whereas the MAD in female ones was 71,5 years. «Classic» musicians both men and women lived longer than jazz, pop and variety music performing musicians (6,3 and 9,7 years lo...

Parametric models for survival data help to differentiate aging from other lifespan determinants. However, such inferences suffer from small sizes of experimental animal samples and variable animals handling by different labs. We analyzed control data from a single laboratory where interventions in murine lifespan were studied over decades. The min...

High-resolution spectra of molecular vibrations in metformin, one of the most widely used antidiabetic drugs, which also possesses antiaging and antitumor properties, have been obtained by a high-sensitivity Raman-scattering technique. It is established that rather narrow (4–10 cm–1) spectral lines observed in a 300–1200 cm–1 range can be used for...

The global aging of human population is one of the main challenges and opportunities of the 21st century. Establishing an International Agency for Research on Aging as an entity affiliated to one of the intergovernmental institutions, such as the World Health Organization, can be crucial for promoting international collaboration in gerontology, in...

Materials and methods. The effect of melatonin (MLT) and metformin (MTF) on the efficacy of neoadjuvant hormone therapy with toremifene was investigated in 54 patients with estrogen receptor-positive, locally advanced breast cancer (ER + BC). The average age of women was 67 years. The patients had no diabetes mellitus. The first group of patients (...

Identification of molecular targets and mechanism of action is always a challenge, in particular - for natural compounds due to inherent chemical complexity. BP-Cx-1 is a water-soluble modification of hydrolyzed lignin used as the platform for a portfolio of innovative pharmacological products aimed for therapy and supportive care of oncological pa...

We urge the WHO to include and emphasize specific tasks and goals to maintain and improve the health of the global aging population in its work program. Among others, these tasks and goals must include enhancing scientific research and technological development aimed to provide new effective and safe therapies to meet the pressing health needs of t...

BP-C3 is a formulation, which comprises lignin-derived polyphenolic composition of benzenepolycarboxylic acids (BP-Cx-1) with iron complex, selenium, ascorbic acid and retinol, and possesses geroprotective activity. The present study examined the effect of BP-C3 (80 mg/kg, administered 18 times in total by gavage) on the development of haematologic...

The incidence of cancer increases with age in humans and in laboratory animals alike. There are different patterns of age-related distribution of tumors in different organs and tissues. Aging may increase or decrease the susceptibility of various tissues to initiation of carcinogenesis and usually facilitates promotion and progression of carcinogen...

This publication is the second part of an analytical review of a new stage of development of gerontology and geriatrics in Russia. The components of a social-support system for senior citizens and the structure of social and medical support as its crucial components are presented. The problem of positioning the geriatric care within the system of s...

Purpose: There remains an unmet medical need for radioprotective and mitigative agents. BP-C2 is a novel lignin-derived polyphenolic composition with ammonium molybdate, developed as radioprotector/radiomitigator. Objectives: The present study evaluated BP-C2 for mitigation of acute radiation syndrome (ARS). Methods: A total-body irradiation mouse...