scholarly journals IMMUNOHISTOCHEMICAL FEATURES IN SOFT TISSUE SARCOMAS

Author(s):  
Ahliman Amiraslanov Ahliman Amiraslanov ◽  
Sevinj Abdiyeva Sevinj Abdiyeva ◽  
Azer Amiraslanov Azer Amiraslanov

Sarcomas are relatively rare, accounting for only 1% of all adult malignancies and 15% of childhood malignancies [2]. According to the World Health Organization (WHO), the group of soft tissue sarcomas includes more than 100 different histological subtypes [3]. According to the recommmendations of the WHO to improve the accuracy of diagnosis in soft tissue sarcoma, the traditional histopathological examination should be supplemented with immunohistochemical and molecular methods [1]. It was carried out immunohistochemical research of CD31 receptor of Vascular Endothelial Growth Factor (VEGF) in 129 patients with STS. The age range of patients is on average 14-77 years with a peak in the age of 50-59 years. The most common reason for initial visit to a medical institution was palpable tumor (100%). It was studied the following correlative interdependences: It was determined that histodifferentiation of tumour is in inverse correlation with expression CD31 receptor. Distinctions of expression level of CD31 are shown, depending on the degree of tumor differentiation, presence or absence of its spontaneous necrotization, limphoid infiltration of pathological nidus and amount of vessels in tumor tissue. That is as high the degree of histological differentiation of tumour as low the level of expression CD31 receptor (χ2=35,4; p<0,001; р=-0,322). In FHTof ST is exposed inverse dependence between expression CD31 endotelial cells with spontaneous necrosis and lymphoid infiltration. As more the size and foci of spontaneous necrosis (χ2=67,1; p<0,001; р=-0,473) and lymphoid infiltration (χ2=46,1; p<0,001; р=-0,346), as low the level of expression CD31 receptor. It was found that the high level of espression CD31 receptor is in direct correlation with metastasis (χ2=18,6; р=0,42; p<0,001) and recurrence (χ2=9,43; р=0,30; p<0,01) of the process. Studied modern approaches to the diaqnostics and treatment of malignancies. One such approach is ”Oncology Control”, which means minimizing the risk of recurrence at the local and systemic level. Following treatment, follow-up should include history and physical examination accompanied by imaging (Ultrasound or MRI) every 3 to 6 month for 2 to 3 years, and then every 6 to 12 months thereafter to asses for recurrence. So in high positivity of CD31 receptor is exposed unfavourable prognosis in patients with STS. Summarizing before said we have come to the conclusion that immune-histo-chemical investigation of CD31 receptor of VEGF has important prognostical meaning in patients STS.

2016 ◽  
Vol 9 (1) ◽  
pp. 85-89
Author(s):  
Svetlana A. Mateva ◽  
Margarita R. Nikolova ◽  
Alexandar V. Valkov ◽  
Margarita R. Nikolova

Summary Liposarcoma is one of the most common soft tissue sarcomas in adults with a relative incidence amongst other sarcomas ranging from 9.8% to 16%. It usually locates in the limbs and retroperitoneum. Primary liposarcomas of the larynx and hypopharynx are rare, comprising less than 20% of all head and neck liposarcomas. According to World Health Organization, these tumors are divided into four histologic types, and well-differentiated liposarcoma is the most common one. It is a tumor of low-grade malignancy that may recur locally, but does not metastasize. We present a case of laryngopharyngeal well- differentiated liposarcoma in an old patient with two previous removals. We also discuss recently published cases with this unusual location of liposarcoma.


2019 ◽  
Vol 91 (1) ◽  
pp. 48-52
Author(s):  
E V Akimova ◽  
M Ju Akimov ◽  
E I Gakova ◽  
M M Kayumova ◽  
V V Gafarov ◽  
...  

The aim of the study was to determine the levels of depression and life exhaustion in men and women of the open urban population in the age range. Materials and methods. A single-stage epidemiological study was conducted among people of both sexes aged 25-64 in Tyumen. A representative sample was formed from the electoral lists of citizens by the method of "random numbers" - 2000 men and women with a response among men 85.0%, among women - 70.3%. The study of depression was conducted according to the algorithms of the program of the world health organization "MONICA-psychosocial". Results. The prevalence of depression in the Tyumen population and in the age and sex groups showed a predominance of the average level over the high, in the age categories 25-34 and 35-44 years - significantly higher prevalence of high levels of depression in women. The higher prevalence of the average level of men and women IN the open population was determined to be relatively high. The average level of LIFE significantly prevails in women in the older age categories and in the population as a whole, the high level of LIFE - at the age of 25-34 years in women and at the age of 55-64 years in men. Conclusion. Therefore, in the open population of the middle-urbanized Siberian city there is a need to form an integrated approach to the prevention of non-infectious diseases, especially cardiovascular diseases, as it is established that prevention programs lead to a reduction in the burden of depression and, and effective approaches to the prevention of psycho-emotional States at the level of individual communities include school-oriented programs to teach positive thinking among the population, starting from a young age.


2016 ◽  
Vol 206 (5) ◽  
pp. 924-932 ◽  
Author(s):  
Akshay D. Baheti ◽  
Ryan B. O'Malley ◽  
Sooah Kim ◽  
Abhishek R. Keraliya ◽  
Sree Harsha Tirumani ◽  
...  

Author(s):  
Roger Magnusson

Non-communicable diseases (NCDs), including cardiovascular disease, cancer, chronic respiratory diseases, and diabetes, are responsible for around 70 percent of global deaths each year. This chapter describes how NCDs have become prevalent and critically evaluates global efforts to address NCDs and their risk factors, with a particular focus on the World Health Organization (WHO) and United Nations (UN) system. It explores the factors that have prevented those addressing NCDs from achieving access to resources and a priority commensurate with their impact on people’s lives. The chapter evaluates the global response to NCDs both prior to and since the UN High-Level Meeting on Prevention and Control of Non-communicable Diseases, held in 2011, and considers opportunities for strengthening that response in future.


Author(s):  
Van-Hao Duong ◽  
Thanh-Duong Nguyen ◽  
Miklos Hegedus ◽  
Erika Kocsis ◽  
Tibor Kovacs

The determination of natural radionuclide concentrations plays an important role for assuring public health and in the estimation of the radiological hazards. This is especially true for high level radiation areas. In this study, 226Ra, 228Ra and 238U concentrations were measured in well waters surrounding eight of the high-level natural radiation areas in northern Vietnam. The 226Ra, 228Ra and 238U activity concentrations vary from <1.2 × 10−3–2.7 (0.46), <2.6 × 10−3–0.43 (0.07) and <38 × 10−3–5.32 Bq/L (0.50 of median), respectively. 226Ra and 238U isotopes in most areas are in equilibrium, except for the DT-Thai Nguyen area. The calculated radiological hazard indices are generally higher than WHO (World Health Organization) recommendations. Average annual effective dose and excess lifetime cancer risk values due to drinking well water range from to 130 to 540 μSv/year and 7.4 × 10−6 to 3.1 × 10−5, respectively.


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Ajay H. Bhandarwar ◽  
Girish D. Bakhshi ◽  
Eham Arora ◽  
Nikhil Dhimole ◽  
Sanjay R. Bijwe ◽  
...  

Abstract Background SARS CoV-19 was declared as a pandemic by the World Health Organization (WHO), raising up challenges on various levels ranging from therapeutics to diagnostics. The conventional autopsy technique may pose a health hazard to health care workers. A minimally invasive autopsy technique can diminish this hazard. Materials and methods Between August and November 2020, 51 patients who were suffering from Covid-19 at the time of their demise were included. A novel minimally invasive ultrasound-guided technique for procuring tissue samples of major organs was employed which were thereafter subject to histopathological examination. A detailed review of the course in hospital was noted. An analysis was performed to correlate the cause of death ascertained from our minimally invasive technique with the cause of death ascertained clinically. Results There was adequate tissue sampling in 45 cases, where the minimally invasive autopsy technique confirmed the cause of death in all 45 cases (100%) and made it more specific in 5 cases (11.11%). Conclusion Minimally Invasive Autopsy is an easily reproducible technique which has the potential to strengthen the probable the cause of death with reasonable certainty while ensuring safety and ethics.


Author(s):  
Tuomas Kari ◽  
Miia Siutila ◽  
Veli-Matti Karhulahti

This chapter is an extended revision of the authors' earlier study (2016) on the training routines of professional and high-level esport players, with added focus on their physical exercise. The study is methodologically mixed with a quantitative survey sample (n=115) and a qualitative interview sample (n=7). Based on this data, high-level esport players train approximately 5.28 hours every day around the year, and professional esport players at least the same amount. Approximately 1.08 hours of that training is physical exercise. More than half (55.6%) of the professional and high-level esport players believe that integrating physical exercise into their training programs has a positive effect on esport performance; however, no less than 47.0% do the physical exercise chiefly to maintain their overall state of health. Accordingly, the study indicates that professional and high-level esport players are physically active as well: those of age 18 and older exercising more than three times the daily 21-minute physical activity recommendation given by the World Health Organization.


2007 ◽  
Vol 26 (10) ◽  
pp. 823-832 ◽  
Author(s):  
A. Vahidnia ◽  
G.B. van der Voet ◽  
F.A. de Wolff

Arsenic (As) is one of the oldest poisons known to men. Its applications throughout history are wide and varied: murder, make-up, paint and even as a pesticide. Chronic As toxicity is a global environmental health problem, affecting millions of people in the USA and Germany to Bangladesh and Taiwan. Worldwide, As is released into the environment by smelting of various metals, combustion of fossil fuels, as herbicides and fungicides in agricultural products. The drinking water in many countries, which is tapped from natural geological resources, is also contaminated as a result of the high level of As in groundwater. The environmental fate of As is contamination of surface and groundwater with a contaminant level higher than 10 particle per billion (ppb) as set by World Health Organization (WHO). Arsenic exists in both organic and inorganic species and either form can also exist in a trivalent or pentavalent oxidation state. Long-term health effects of exposure to these As metabolites are severe and highly variable: skin and lung cancer, neurological effects, hypertension and cardiovascular diseases. Neurological effects of As may develop within a few hours after ingestion, but usually are seen in 2—8 weeks after exposure. It is usually a symmetrical sensorimotor neuropathy, often resembling the Guillain—Barré syndrome. The predominant clinical features of neuropathy are paresthesias, numbness and pain, particularly in the soles of the feet. Electrophysiological studies performed on patients with As neuropathy have revealed a reduced nerve conduction velocity, typical of those seen in axonal degeneration. Most of the adverse effects of As, are caused by inactivated enzymes in the cellular energy pathway, whereby As reacts with the thiol groups of proteins and enzymes and inhibits their catalytic activity. Furthermore, As-induced neurotoxicity, like many other neurodegenerative diseases, causes changes in cytoskeletal protein composition and hyperphosphorylation. These changes may lead to disorganization of the cytoskeletal framework, which is a potential mechanism of As-induced neurotoxicity. Human & Experimental Toxicology (2007) 26, 823— 832


2018 ◽  
Vol 45 (6) ◽  
pp. 967-976 ◽  
Author(s):  
William Darrow ◽  
Chintan Bhatt ◽  
Cassandra Rene ◽  
Lakisha Thomas

In January 2016, the first case of mosquito-borne Zika infection in the mainland United States was confirmed in Miami, Florida. The first locally acquired case was reported 6 months later. Local public health and school officials began warning students of the outbreak on their return to the classroom in August 2016. In November–December 2016, we conducted a survey of students attending a large public university in Miami to determine how well informed they were about Zika. A multistage sampling design was used to contact teaching assistants and ask them for help in recruiting their students. Eligible students had to be 18 years of age or older and enrolled in at least one three-credit course during fall semester. A 25-item questionnaire based on the World Health Organization Zika Knowledge, Attitudes, and Practice Resource Pack was developed, pretested, and approved by the university’s institutional review board before it was made available to eligible students through Blackboard Learn or a survey link. About half (50.4%) of the 139 respondents had heard about Zika prior to 2016. Only one student was unaware of Zika before our survey. Most (47.1%) first learned about Zika through television, 18.8% from family or friends, and 15.2% from the Internet, social media, or university e-mail. Two thirds (66.2%) believed Zika could be prevented, 15.1% thought it might be prevented, and 85.7% had taken some precautions. A high level of awareness of the risk of Zika infection was apparent. Most students reported taking steps to avoid exposure to the Zika virus.


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