О. Н. Сергеева

ORCID: 0000-0002-0927-6885
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About
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Research Areas
  • Neuroendocrine Tumor Research Advances
  • Gallbladder and Bile Duct Disorders
  • Pediatric Hepatobiliary Diseases and Treatments
  • Pregnancy and preeclampsia studies
  • Lung Cancer Research Studies
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Neuroblastoma Research and Treatments
  • Pancreatic and Hepatic Oncology Research
  • Education and Learning Interventions
  • Food Industry and Aquatic Biology
  • Hormonal and reproductive studies
  • Prostate Cancer Treatment and Research
  • Ubiquitin and proteasome pathways
  • Human Health and Disease
  • Multiple Myeloma Research and Treatments
  • Growth Hormone and Insulin-like Growth Factors
  • Potato Plant Research
  • Estrogen and related hormone effects
  • Bone health and treatments
  • Cancer Mechanisms and Therapy
  • Educational Research and Science Teaching
  • Pituitary Gland Disorders and Treatments
  • Education and Critical Thinking Development
  • Liver Disease Diagnosis and Treatment
  • Intraperitoneal and Appendiceal Malignancies

University High School
2022

Ministry of Health of the Russian Federation
2019-2020

Case Western Reserve University
2018

Saratov State Medical University
2015

Эндометриоз является одним из наиболее распространенных гинекологических заболеваний. Несмотря на то, что данная патология изучается в течение многих лет, единого мнения относительно этиопатогенеза данного заболевания до сегодняшнего дня не получено. В данной работе рассмотрено несколько теорий, касающихся происхождения такой патологии, как эндометриоз и его осложнений. По данным ВОЗ, за последние 5 лет выявлен более чем у 179 млн женщин, причем 67% случаев диагноз эндометриоза...

10.25633/etn.2025.03.11 article RU Естественные и технические науки 2025-03-31

Until now, there is no systematic information on the role of endothelial dysfunction in mechanisms disorders blood coagulation potential and microcirculation different organs tissues preeclampsia.Objective: Our aim was to extend existing principles diagnosis pre-eclampsia by establishing violations. Methods: A prospective comparative study performed. Condition processes studied conventional techniques, parameters a functional endothelium (nitric oxide metabolites, endothelin 1,...

10.15690/vramn.v70.i5.1448 article EN cc-by Annals of the Russian academy of medical sciences 2015-12-03

Objective. To compare liver function assessments using Gd-EOB-DTPA-enhanced MRI and the gold standard hepatobiliary scintigraphy (HBS) in patients with bile duct diseases. Material methods. The investigation enrolled 18 (male/female = 11/7; age, 29–70 years, Klatskin tumor (n=16), epithelial dysplasia (n=1), intrahepatic cholangiolithiasis (n=1)) after biliary decompression, who underwent 21 paired MRIs 99mTc-mebrofenin HBS at a study interval of no more than 3 days. In same regions interest...

10.20862/0042-4676-2019-100-4-200-208 article EN cc-by-nc Journal of radiology and nuclear medicine 2019-09-09

The paper is based on a seven-year surveillance of the patient showing ectopic adrenocorticotropic hormone (ACTH) syndrome.Materials and methods.A female 49-year old underwent pancreaticoduodenectomy for pancreatic head neuroendocrine tumor (NET) with synchronous liver metastases in 2009.Over time metastatic lesions were gradually enlarging conventional transarterial chemoembolization (cTACE) was performed twice: December 2012 March 2014 "on demand" regimen.Since 2013 developed clinical...

10.21569/2222-7415-2016-6-3-108-116 article EN Russian Electronic Journal of Radiology 2016-01-01

It is presented rare observation of biliary papillomatosis causing bile duct confluence stricture with following obstructive jaundice. The differentiated diagnosis and features interventional procedures are discussed in detail. authors also suggest never previously mentioned method therapy consisting systemic local intraductal prospidine (alkylating anticancer drug) application. Thanks to this therapeutic approach was cured followed by drainage removal. Favorable long-term results were obtained

10.16931/1995-5464.20151116-123 article EN cc-by Annaly khirurgicheskoy gepatologii = Annals of HPB surgery 2018-03-26

Proximal extrahepatic bile ducts are the biliary tree segment within formal boundaries from cystic ductcommon hepatic duct junction to sectoral ducts. Despite being a focus of attention diagnostic and interventional radiologists, endoscopists, hepatobiliary surgeons transplantologists they weren’t comprehensively described in available papers. The majority authors regard confluence as group merging primitively arranged tubes providing flow. information on proximal embryonal development,...

10.37174/2587-7593-2021-4-1-74-93 article EN Journal of oncology diagnostic radiology and radiotherapy 2021-04-12

A combined approach to cytoreduction in a patient with neuroendocrine tumor G1 the ileum multiple bilobar metastases G2 liver, originally considered as candidate only for drug therapy, has been demonstrated. The first stage was laparoscopic resection of ileocecal segment intestine, followed by interventional radiological intervention — two-stage selective transarterial oil chemoembolization liver bleomycin. As result, 90 % cytoreduction, suppression clinical manifestations, normalization...

10.37174/2587-7593-2021-4-2-92-100 article EN Journal of oncology diagnostic radiology and radiotherapy 2021-06-22

Until now, there is no systematic information on the role of endothelial dysfunction in mechanisms disorders blood coagulation potential and microcirculation different organs and tissues preeclampsia. Objective : Our aim was to extend existing principles diagnosis pre-eclampsia by establishing violations. Methods: A prospective comparative study performed. Condition processes studied by conventional techniques, parameters a functional endothelium (nitric oxide metabolites, endothelin 1,...

10.15690/vramn705599-603-494 article EN Вестник Российской академии медицинских наук 2015-12-03

Relevance: Isolated bilobar multifocal hepatic lesion is consider to be the most common metastatic neuroendocrine tumor(NET) growth pattern. Underestimation of burden in NET patients at initial diagnosis frequently occurs, thus leading a high postoperative recurrence rate (more than 60 % cases within 5 years). Purpose: To identify MRI-hallmarks liver NETs and present difficult diagnostic cases. Material methods: 103 with histology confirmed were enrolled study. All underwent abdominal...

10.37174/2587-7593-2023-6-2-45-56 article EN Journal of oncology diagnostic radiology and radiotherapy 2023-06-21

Аннотация: В статье отражены результаты исследования межличностных ролевых позиций преподавателя, рассматривающихся автором в качестве самостоятельного феномена, актуализирующихся образовательном процессе вуза, связанных с личными и профессиональными качествами преподавателя. Автор выделяет наиболее распространенные межличностные роли преподавателя вуза: «Человек, которым я хочу могу обсуждать различные проблемы», «Типичный преподаватель вуза», «Любимый преподаватель», «Идеал преподавателя»,...

10.25730/vsu.7606.18.029 article RU Vestnik Vâtskogo gosudarstvennogo universiteta. 2018-08-16

The purpose of the study was to assess frequency bile duct confluence variations in patients with hilar cholangiocarcinoma and no biliary lesions. Material Methods . included 203 Klatskin tumor (study group) 191patients having lesions (control group). All underwent abdominal MRI including MR-cholangiopancreatography. In addition, 141 from group percutaneous transhepatic cholangiography. Anatomic were based on Nakamura classification. Results group, type I, II, III, IV V confluences detected...

10.21294/1814-4861-2020-19-2-5-16 article EN DOAJ (DOAJ: Directory of Open Access Journals) 2020-04-01

Background. The context and the science tasks have changed recently which means that there is a need for an updated methodology to form develop university students’ ability do research, i.e. plan, carry out present its’ results. Before we educational program or course aimed at developing this set of skills, it important break whole process down into stages so could see progress student doing research who getting more self-reliant from start end project.
 Materials methods. was done by...

10.12731/2658-4034-2022-13-1-32-47 article EN cc-by-nc-nd Russian Journal of Education and Psychology 2022-02-28

A case of ascites developed in disseminated neuroendocrine small bowel tumor G1 (Ki-67 2 %) patient due to the unlikeliest possible reasons, i.e. iatrogenic mesenteric arterioportal fistula, is presented paper. The after palliative resection was preparing for liver transarterial chemoembolization (TACE) when fluid accumulation revealed peritoneal cavity at ultrasound and MR imaging. probable etiologies (peritoneal carcinomatosis, carcinoid right heart failure, portal hypertension compression...

10.37174/2587-7593-2022-5-3-112-120 article EN Journal of oncology diagnostic radiology and radiotherapy 2022-09-22
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