Fundamentals of pathology

2021 ◽  
Author(s):  
Aleksandr Tyukavin

The textbook reveals the concepts of health and disease, presents modern ideas about the causes and conditions of the occurrence of actual types of pathology. The importance of molecular genetic factors of heredity and reactivity in the formation of typical pathological processes is shown. The main regularities and features of manifestations of organ and system dysfunction in various types of pathology are described. Special attention is paid to the causes and mechanisms of development of socially significant diseases of the heart and blood vessels, brain, respiratory organs and other vital systems of the body. A separate section of the textbook provides up-to-date information on first aid. The criteria of safe conditions for first aid are described; the main clinical manifestations of emergency conditions in accidents, injuries, poisoning and diseases are described. A list of first aid measures for life-threatening conditions is presented. The cloud service contains a video of the basic algorithm for conducting cardiopulmonary resuscitation in a pharmacy or office. It is written in accordance with the program of the academic discipline "Fundamentals of Pathology" in the specialty 33.02.01 "Pharmacy" and refers to the educational and methodological publications of the cycle of general professional disciplines for students of pharmaceutical technical schools.

2014 ◽  
Vol 95 (6) ◽  
pp. 897-904
Author(s):  
A S Gasparov ◽  
E D Dubinskaya ◽  
I A Babicheva ◽  
N V Lapteva ◽  
M F Dorfman

A review of literature on the problem of connective tissue dysplasia in obstetric and gynecological practice is presented. The questions of terminology, classification, clinical manifestations and diagnosis are surveyed. Currently, many experts note the change of the classical clinical course of a significant number of internal diseases, increased prevalence of allergic and autoimmune diseases. Since the 90s of the last century, connective tissue dysplasia is considered one of the main reasons of the above mentioned conditions. Connective tissue dysplasia is the malformation, which is the basis of a significant number of internal diseases, with diverse symptoms and no clear diagnostic criteria. Researches on connective tissue dysplasia are mainly focused on cardiologic and pulmonary diseases, musculoskeletal diseases, and autoimmune processes. Researches addressing connective tissue diseases in a number of gynecological diseases and conditions in obstetrics appeared only recently. The presence of connective tissue dysplasia in women is a major problem in obstetrics and gynecology. Most reliable biochemical and molecular genetic studies are currently unavailable to a practicing doctor due to technical difficulties and considerable cost. So clinical-genealogical method of examination of patients and their families, as well as the widespread use of instrumental diagnostic methods are of special importance. Obstetricians and gynecologists while managing such patients should pay close attention to the phenotypic features of connective tissue dysplasia and carefully evaluate the cardiovascular and pulmonary systems, blood coagulation to avoid possible serious, often life-threatening, complications.


2020 ◽  
Vol 10 (2) ◽  
pp. 115-121
Author(s):  
R. N. Mustafin ◽  
E. K. Khusnutdinova

Neurofi bromatosis type I (NF1) is a common hereditary tumour syndrome with autosomal dominant type of inheritance. Average worldwide incidence rate of NF1 is 1:3000, equal in men and women. Th e disease develops with a heterozygous mutation in the oncosupressor neurofi bromin-encoding gene NF1. No NF1-associated most common mutations have been found, with over 1400 mutations being described along the gene. No clinical and genetic correlations are observed for NF1, and its symptoms may vary considerably within same inheritance group. Typical NF1 manifestations include pigmented patches and multiple cutaneous or subcutaneous neurofi bromas, oft en disfi guring in degree. Pathogenetic therapy for NF1 is not yet developed, whilst surgical tumourectomy may lead to recurrence and new tumour development in other localities on the body. Molecular genetic research on putative interfaces with epigenetic factors and gene expression patterns may open promising future avenues. Further, establishing a marker NF1 mutation in NF1 patients will allow secondary prevention of the disease. A survey of russian NF1-related literature reveals prevalence of individual clinical case descriptions. In the Russian Federation, studies of NF1-associated mutations in gene NF1 originate from Moscow and Bashkortostan, which sets off advancement of Bashkir medical genetics and urges further developments. In Bashkortostan, 10 NF1-associated mutations were described from 16 patients. Th e reported mutations с.1278G>A (p.Trp426Х), с.1570G>A (p.Glu540Lys), с.1973_1974delTC (р.Leu658ProfsX10), с.3526_3528delAGA (p.Arg1176del), с.3826delC (р.Arg1276GlufsX8), с.4514+5G>A, c.5758_5761delTTGA (p.Leu1920AsnfsX7) in the NF1 gene are new to science. Further research into other genes’ and microRNA expression in patients with various clinical manifestations of NF1 should be aimed at discovering its possible involvement in disease pathogenesis.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1969.1-1969
Author(s):  
D. Tarasova ◽  
L. Shilova ◽  
E. Lutaya ◽  
E. Korenskaya ◽  
M. Koroleva ◽  
...  

Background:Ulcerative colitis (UC) is considered as a systemic autoimmune disease with lesions of the colon mucosa. The current of UC is often accompanied by different extra-intestinal manifestations. Their frequency, according to various studies, varies widely – from 25 to 60 %. It is a serious problem that affects the quality of life and the effectiveness of therapy [1, 2]. Rheumatological manifestations, in particular, damage to the joints and spine, are one of the extra-intestinal manifestations and they are of particular importance. To date, the relationship between UC and joint damage has not been fully studied. These diseases can occur independently in the body or have a common autoimmune or inflammatory nature. It is believed that having common pathogenetic mechanisms of development, UC and joint damage can be different clinical forms of the same disease.Objectives:To evaluate the frequency of clinical manifestations of joint damage in patients with ulcerative colitis.Methods:The study was conducted at the gastroenterological Department of the Hospital №25 (Russia, Volgograd). Archived data from the case histories of 69 patients with a confirmed diagnosis of ulcerative colitis were analyzed, including 58 men (30.4%) with an average age of 33.4 years, and 38 women (69.5%) with an average age of 37.6 years.Results:Among 48 patients with UC, extra-intestinal manifestations were detected in 40 (41.6%) patients. A total lesion of the large intestine was found in 20 patients (20.8%), left-sided colitis in 14 (14, 6%), proctosigmoiditis in 6 (6.25%). The diagnosis was made for the first time in 4 patients (4.16%), 36 patients (37.5%) were admitted to the hospital again due to an exacerbation of the disease. Among the extra-intestinal manifestations, joint lesions prevailed: 20 patients (20.8%) showed clinical signs of peripheral arthritis, spondyloarthritis was detected in 8 patients (8.3 %), and 6 patients (6.25 %) had symptoms of unilateral sacroiliitis. 4 (4.16%) patients were diagnosed with nodular erythema. Primary sclerosing cholangitis was detected in two patients (2.08%).Conclusion:The development of extra-intestinal manifestations in UC is largely determined by the course of the disease and the length of the inflammatory process in the colon. More than a third of patients with UC revealed extra-intestinal manifestations, among which the most common signs of joint damage were present, which necessitates timely diagnosis of extra-intestinal manifestations and involvement of a rheumatologist in the management of this category of patients.References:[1]Knyazev O. V. et al. Epidemiologi of inflammatory bowel disease. Yesterdey, today, tomorrow. Eksperimental’naya i Klinicheskaya Gastroenterologiya 2017; 139 (3): 4–12 (In Russ.)[2]Sadygova G.G. Extraintestinal manifestations of inflammatory bowel diseases: arthropathy and arthritis. Ross z gastroenterol gepatol koloproktol 2016; 26(6):101-5 (In Russ.)Disclosure of Interests:None declared


2019 ◽  
Vol 7 (4) ◽  
pp. 56 ◽  
Author(s):  
Faheemuddin Ahmed ◽  
Abdul Mohammed

Magnesium is the fourth most abundant cation in the body and the second most abundant intracellular cation. It plays an important role in different organ systems at the cellular and enzymatic levels. Despite its importance, it still has not received the needed attention either in the medical literature or in clinical practice in comparison to other electrolytes like sodium, potassium, and calcium. Hypomagnesemia can lead to many clinical manifestations with some being life-threatening. The reported incidence is less likely than expected in the general population. We present a comprehensive review of different aspects of magnesium physiology and hypomagnesemia which can help clinicians in understanding, identifying, and treating this disorder.


2021 ◽  
Vol 8 ◽  
Author(s):  
Federico Montealegre ◽  
Bridget M. Lyons

Sepsis is currently defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. Sepsis may occur secondary to infection anywhere in the body, and its pathogenesis is complex and not yet fully understood. Variations in the host immune response result in diverse clinical manifestations, which complicates clinical recognition and fluid therapy both in humans and veterinary species. Septic shock is a subset of sepsis in which particularly profound circulatory, cellular, and metabolic abnormalities are associated with a greater risk of mortality than with sepsis alone. Although septic shock is a form of distributive shock, septic patients frequently present with hypovolemic and cardiogenic shock as well, further complicating fluid therapy decisions. The goals of this review are to discuss the clinical recognition of sepsis in dogs and cats, the basic mechanisms of its pathogenesis as it affects hemodynamic function, and considerations for fluid therapy. Important pathophysiologic changes, such as cellular interaction, microvascular alterations, damage to the endothelial glycocalyx, hypoalbuminemia, and immune paralysis will be also reviewed. The advantages and disadvantages of treatment with crystalloids, natural and synthetic colloids, and blood products will be discussed. Current recommendations for evaluating fluid responsiveness and the timing of vasopressor therapy will also be considered. Where available, the veterinary literature will be used to guide recommendations.


2020 ◽  
pp. 14-17
Author(s):  
Irina A. Shkuratova ◽  
◽  
Lyudmila I. Drozdova ◽  
Aleksander I. Belousov ◽  

Mycotoxicological monitoring of forages shows that the problem of mycotoxicosis has been relevant for several decades. Minimal doses of mycotoxins in feed lead to a decrease in milk productivity, increased sensitivity to infectious and non-infectious diseases. When several mycotoxins enter the body simultaneously, a synergistic effect develops, causing a significant increase in toxicity. Feed contaminated with several types of fungi and their toxins is dangerous for dairy cattle. It was found that the feed mixture contained the types of associations of Aspergillus spp. fungi + Fusarium; Aspergillus spp. + Penicillium spp. + Mucor spp; Fusarium + Penicillium; Mucor spp. + Fusarium + Ustilaginales. Pathogenetic features of metabolic and morphological changes in highly productive cows with polymycotoxicosis were studied. Feeding food contaminated with various metabolites of mold fungi leads to the development of signs of chronic toxemia in animals. Clinical manifestations are the development of diarrhea and dehydration, with a decrease in milk productivity. Metabolic disorders feature the development of an inflammatory process, metabolic acidosis, hyperfermentonemia, with an increase in the amount of creatinine and urea in the blood serum. Metabolic signs indicate the development of hepatorenal syndrome due to structural disorders of the liver and kidneys. Histological signs of polymicotoxicosis are intracapillary and hemorrhagic glomerulonephritis, hepatocyte micronecrosis, and proliferation of connective tissue stroma cells, which leads to the development of atrophic cirrhosis in the interstitial and circular phases.


Author(s):  
E.P. Dolgov ◽  
◽  
A.A. Abramov ◽  
E.V. Kuzminova ◽  
E.V. Rogaleva ◽  
...  

The article presents the data on the study of the influence of mycotoxins combination (T-2 toxin at the concentration of 0.095 mg/kg and aflatoxin B1 in the concentration of 0.019 mg/kg) on the body of quails and the results of pharmacocorrection of toxicosis with a complex consisting of beet pulp and lecithin. Structural changes in the intestines of quais at fodder mycotoxicosis are described. The use of antitoxic feed additives in poultry led to a weakening of the action of xenobiotics, which was confirmed by an increase in the safety of poultry and increase in body weight of quails, a decrease in the clinical manifestations of intoxication, as well as in positive changes in the structure of the intestine of the poultry during histological examination.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Lu Cao ◽  
Ruixue Zhang ◽  
Liang Yong ◽  
Shirui Chen ◽  
Hui Zhang ◽  
...  

Abstract Background Dyschromatosis universalis hereditaria (DUH) is a pigmentary dermatosis characterized by generalized mottled macules with hypopigmention and hyperpigmention. ABCB6 and SASH1 are recently reported pathogenic genes related to DUH, and the aim of this study was to identify the causative mutations in a Chinese family with DUH. Methods Sanger sequencing was performed to investigate the clinical manifestation and molecular genetic basis of these familial cases of DUH, bioinformatics tools and multiple sequence alignment were used to analyse the pathogenicity of mutations. Results A novel missense mutation, c.1529G>A, in the SASH1 gene was identified, and this mutation was not found in the National Center for Biotechnology Information Database of Short Genetic Variation, Online Mendelian Inheritance in Man, ClinVar, or 1000 Genomes Project databases. All in silico predictors suggested that the observed substitution mutation was deleterious. Furthermore, multiple sequence alignment of SASH1 revealed that the p.S510N mutation was highly conserved during evolution. In addition, we reviewed the previously reported DUH-related gene mutations in SASH1 and ABCB6. Conclusion Although the affected family members had identical mutations, differences in the clinical manifestations of these family members were observed, which reveals the complexity of the phenotype-influencing factors in DUH. Our findings reveal the mutation responsible for DUH in this family and broaden the mutational spectrum of the SASH1 gene.


Author(s):  
Brice Autier ◽  
Adélaïde Chesnay ◽  
Claire Mayence ◽  
Stéphanie Houcke ◽  
Hélène Guégan ◽  
...  

Strongyloidiasis manifestations range from asymptomatic cases to the life-threatening disseminated strongyloidiasis in case of immune deficiency: larvae migrate throughout the body, disseminating germs from the digestive flora to various organs. Here, we described a case of disseminated mucormycosis consecutive to Strongyloides stercoralis hyperinfestation in a Surinamese migrant infected with HTLV-1.


2021 ◽  
pp. 112067212199404
Author(s):  
He Yu ◽  
Xinyu Ma ◽  
Nianting Tong ◽  
Zhanyu Zhou ◽  
Yu Zhang

Importance: This is the first reported case of acute exudative paraneoplastic polymorphous vitelliform maculopathy (AEPPVM) in a patient with thymoma, accompanied by myasthenia gravis (MG) and polymyositis. Objective: To examine the pathogenesis of ocular disease in a patient with yolk-like fundus lesions and thymoma, MG, and polymyositis throughout the body based on clinical manifestations, diagnosis, differential diagnosis, and genetic testing to determine the appropriate treatment course. Design, setting, and participants: We describe a 63-year-old woman who presented to our tertiary medical center with a 3-month history of reduced visual acuity in both eyes. Concurrent fundoscopy revealed a 2.0 × 1.7-mm, unifocal, yellow, round vitelliform lesion in the macular region, surrounded by multifocal, shallow, yellow-white pockets of subretinal fluid. The patient’s medical history included thymoma with thymectomy treatment, combined with pericardiectomy and postoperative radiotherapy (20 years prior), followed by a diagnosis of MG with suspect thymic association (15 years prior). Three years prior, the patient had been diagnosed with polymyositis related to paraneoplastic syndrome; 1 year prior, she had been examined for pleural thickening due to suspected metastatic tumor. Results: On her most recent follow-up visit at 3 months after initial diagnosis, the patient was stable with no clinically significant progression in ocular or systemic conditions.


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