Immunological Reactions Research Articles

Features of the development of an adaptive antiviral immune response

Both well-known basic cellular and humoral factors of the adaptive antiviral immune response, which play an important role in the effectiveness of immunological reactions to inhibit viral infections, and new factors with which the efficiency of the functioning of cellular and humoral mechanisms of a specific immune response is associated are considered. This is, first of all, the presence of naive T-lymphocytes in the macroorganism, programmed to recognize a specific viral antigen. In addition, this is facilitated by various receptor specificities of T-lymphocytes, of which there are more than 20 million. The diversity of receptor structures was believed to be associated with the functioning of genes that activate recombinase. The development of antiviral cell-mediated mechanisms depends on interleukins 12, interferon-, and the transcriptional activator T-bet. An imbalance in the ratio of T-helper cell types 1 and 2 can lead to memory cell damage. Th-17 plays a central role in controlling the immune response to viral infection. The balance between activated cytotoxic CD-8+/T-helper cells and T-regulatory lymphocytes determines the risk of immunopathology. An excess of effector cells leads to immune-mediated damage, a lack of chronicity of a viral infection. One of the controlling mechanisms that ensure minimal damage to cells and tissues is the assembly of a cytoplasmic protein complex in antigen-presenting cellsinflammasomes. The intensity of inflammatory processes depends on whether the virus is cytopathic. The effectiveness of the humoral immune response is also attributed to the fact that one plasma cell can secrete more than 2,000 antibody molecules per second. One of the powerful properties of the adaptive antiviral immune response is the development of immunological memory by different types of memory T cells. To date, at least three subpopulations of memory T cells with different activation requirements have been identified. Thus, determining how each of these types of memory T-lymphocytes contributes to the long-term antiviral protection of the macroorganism is an urgent task.

Clinical Value of Glycan Changes in Cerebrospinal Fluid for Evaluation of Post-Neurosurgical Bacterial Meningitis with Hemorrhagic Stroke Patients.

Post-neurosurgical bacterial meningitis (PNBM) is one of the severe complications in patients receiving neurosurgical procedures. Recent studies have found microbe-related glycans play important roles in adhesion, invasion, and toxicity toward innate immunological reactions. In this study, we aimed to investigate the glycomic profile and its potential diagnostic efficacy in post-neurosurgical bacterial meningitis (PNBM) patients with hemorrhagic stroke. A total of 136 cerebrospinal fluid (CSF) samples were recruited and divided into a PNBM group and a non-PNBM group based on the clinical diagnostic criteria. A lectin biochip-based method was established for the detection of glycans in CSF. The clinicopathological data and biochemical parameters in CSF from all patients were analyzed. Two models for multivariate analysis investigating glycan changes in the CSF were conducted, aiming at determining the specific expression and diagnostic efficacy of lectin-probing glycans (LPGs) for PNBM. In univariate analysis, we found that 8 out of 11 LPGs were significantly correlated with PNBM. Model 1 multivariate analysis revealed that PNA (p = 0.034), Jacalin (p = 0.034) and LTL (p = 0.001) were differentially expressed in the CSF of PNBM patients compared with those of non-PNBM patients. Model 2 multivariate analysis further disclosed that LTL (p = 0.021) and CSF glucose (p < 0.001) had independent diagnostic efficacies in PNBM, with areas under the curve (AUC) of 0.703 and 0.922, respectively. In summary, this study provided a new insight into the subject of CSF glycomics concerning bacterial infection in patients with hemorrhagic stroke.

Spontaneous Resolution of Hemophagocytic Lymphohistiocytosis in a Child Infected with Epstein–Barr Virus

Hemophagocytic lymphohistiocytosis (HLH) is a rare and complex disorder that involves numerous hematological and immunological reactions. These reactions, if left untreated, may lead to multiorgan failure and death. Corticosteroids are the mainstay of HLH therapy which may also comprise other chemotherapeutic or immunotherapy agents. The components of the 2004 HLH diagnostic criteria may intersect with several other conditions. In this report, we present the case of a 4-year-old boy who was diagnosed with Epstein–Barr virus-related infectious mononucleosis complicated by clinical and laboratory features consistent with HLH, which self-resolved completely without HLH-directed therapy.

Both immunological reaction and complex posttraumatic stress disorder might be involved in the symptoms manifestation of long COVID

Both immunological reaction and complex posttraumatic stress disorder might be involved in the symptoms manifestation of long COVID

Assembly of a Draft Genome for the Mouse Ectoparasite Myocoptes musculinus.

Myocoptes musculinus is a common ectoparasite of wild mice and is occasionally found on research mice. Infestations of research mice are often subclinical but can cause severe dermatitis. Perhaps more importantly, infestations can cause immunologic reactions that may alter research outcomes, and most animal research facilities strive to prevent or eliminate mites from their mouse colonies. M. musculinus infestations are currently detected by using microscopic evaluation of the fur and skin and PCR assays of pelt swabs targeting the rRNA genes of this mite. In our facility, we encountered multiple, false-positive 18S rRNA PCR results from a closed mouse colony. We could not identify the source of the false positives even after performing PCR analysis of other Myocoptes gene targets using assays developed from the few other target genomic sequences available for M. musculinus or Myocoptes japonensis in public databases. This situation highlighted the limited genetic resources available for development of diagnostic tests specific for this ectoparasite. To expand the available genetic resources, we generated a metagenome of M. musculinus derived by sequencing from fur plucks of an infected mouse. We also determined the completeness of this metagenome and compared it with those of related mites.

Клиническое наблюдение пациента с поражением тонкой и толстой кишки болезнью Крона и эозинофильным колитом

Crohn's disease (granulomatous enteritis, granulomatous colitis, terminal ileitis) is a chronic relapsing disease characterized by transmural granulomatous inflammation with segmental lesions often of the small and large intestine. Eosinophilic colitis is a rare disease characterized by high level of eosinophilic infiltrate in the colon wall in patients with symptoms, more often manifested by abdominal pain or diarrhea. We face more often with the unique combination of these two diseases, characterized by different types of immunological reactions. We presented the clinical case of Crohn's disease and eosinophilic colitis in a 15-year-old boy. We face more often with the unique combination of these two pathological conditions, characterized by different types of immunological reactions, The article presents the clinical case of Crohn's disease and eosinophilic colitis in a 15-year-old boy. The aim of this clinical case is to increase the knowledge of practitioners about inflammatory bowel diseases, to point out possible combinations of different immunological inflammatory reactions in one patient, and the difficulties in diagnosing and managing this kind of patients. Key words: Crohn's disease, eosinophilic colitis, diagnosis, treatment, hormone-resistant form, targeted therapy, children

Патогенетические и структурно-функциональные изменения в почках после перенесенного COVID-19

There is now a growing evidence of the long-term effects of COVID-19, affecting almost all human systems and organs, including the kidneys. The objective of this paper was to study pathogenetic and structural and functional changes in the kidneys in patients with COVID-19 infection. Materials and methods. Articles were searched in PubMed, Medline, Google Scholar, E-library, Clinical Trial databases using the keywords "post-COVID syndrome," "renal damage (kidney disease)," "COVID-19," "SARS-CoV-2," and "glomerulonephritis" in Russian and English. Databases reporting cases of detectable renal damage following a prior coronavirus infection published by September 28, 2022 were used. This review includes literature reviews, clinical cases, and original studies reporting the confirmed cases of detectable renal damage after confirmed prior COVID-19. The sources that focus only on renal damage during the acute period of coronavirus infection have been excluded. Results. Primary viral damage is carried out through the effect on the receptors of angiotensin-converting enzyme-2 (ACE-2). No less important mechanisms of viral damage are immunological and inflammatory reactions, dysfunctions of the complement system, leading to multiple organ failure. The long-term consequences of coronavirus infection on the kidneys were manifested in a decrease in the estimated glomerular filtration rate (eGFR), an increase in creatinine levels, proteinuria, and microhematuria. Dickkopf-3 protein (uDKK-3) may become a promising marker of kidney damage. Post-COVID renal disease can occur both de novo and with a previous renal complication of COVID-19. The most common morphological variants of kidney damage were tubular lesions and various morphological variants of glomerulonephritis. Conclusion. The association of COVID-19 and kidney damage in the post-COVID period is supported by common mechanisms of pathogenesis, including direct viral damage through ACE-2, inflammatory and immune reactions of the body. These data are confirmed by detectable markers of inflammation and damage to the renal tissue, the morphological picture of necrosis, fibrosis of the renal parenchyma in patients with COVID-19 infection.

Alteration of Activated Phenotypes of the Macrophages Treated with Lipopolysaccharide and Interferon- by Sodium Bicarbonate in the Culture Medium

Macrophage is the immune phagocytic cell, playing variety of immunological and inflammatory reactions. The macrophage activation has been extensively studied in vitro using culture media like Dulbecco's modified Eagle’s medium (DMEM) and Ham's F-12 medium (F-12) in response to bacterial infection, tumor development, cytokines and so on. In the study of macrophage activation during co-culture with EL-4 tumor cells, we found different phenotypes of J774.1 macrophage-like cell line in F-12 and DMEM, when treated with lipopolysaccharide (LPS) and interferon-g (IFN- g). Among these phenotypes, nitric oxide (NO) production with corresponding inducible NO synthase (iNOS) expression was remarkable, showing higher in F-12 than in DMEM. Besides, O2-generating activity and production of interleukin-1b (IL-1b) were also higher in F-12 than DMEM, although production of tumor necrosis factor-a (TNF- a) was higher in DMEM than F-12. RT-PCR analysis revealed significantly higher expression of mRNA of iNOS, IL-1 b, IL-18, IkBa in F-12, but higher that of p65 and p105 in DMEM after treatment with LPS + IFN-g, suggesting these differences being induced at the transcriptional levels. Through investigation of critical factor(s) in these culture media that influence the activation phenotypes of the macrophages, we found that sodium bicarbonate (NaHCO3) concentrations in these culture media, 14 mM in Ham's F-12 and 44 mM in DMEM, were the key. Culture medium-induced differences in macrophage activation were also observed in RAW264.7 macrophage-like cell line and in mouse peritoneal macrophages. The recent studies suggested involvement of carrier (SLC) transporter gene expression and subsequent elevation of JAK/STAT signaling cascades in these NaHCO3 responses. Taken together, these results provide evidence for the importance of NaHCO3 in the culture medium in the macrophage activation in vitro, implying important insights to the NaHCO3 concentration in vivo in the body of patients suffering from inflammation, tumor development or immune disorders where macrophage activation is involved.

Энтеральная и внутривенная нутриентная поддержка для улучшения репродуктивных исходов

Aim: To describe the tools for determining the nutritional status of patients, possible methods for its correction, the main components (vitamins, macro- and micronutrients, and antioxidants) for oral and intravenous administration, involved in the implementation of the reproductive function. Key points. The correct combination of enteral and parenteral forms of vitamins, macro- and microelements makes it possible to adequately, personalized and quickly compensate for the deficient conditions of patients at the pregravid stage, to ensure a favorable start of pregnancy, taking into account personal risks. The optimal nutritional status maintains normal immunological reactivity of the organism, influencing the processes of implantation and placentation, which is extremely important for overcoming miscarriage, especially in the early stages. Conclusion. Intravenous nutritional support is an additional tool in the practitioners' arsenal to improve reproductive outcomes and improve patients' quality of life. Keywords: vitamins, macro- and micronutrients, preconception preparation, antioxidants, intravenous nutritional therapy.

FEATURES OF CHANGES IN INTEGRATIVE INDICATORS OF ENDOGENOUS INTOXICATION, REACTIVITY, INFLAMMATION ACTIVITY IN PATIENTS WITH CHRONIC VIRAL HEPATITIS AND CHRONIC RENAL FAILURE

The aim: to study the peculiarities of changes in integrative indicators of endogenous intoxication, reactivity and activity of inflammation in patients with chronic viral hepatitis B and C, and with chronic renal failure undergoing hemodialysis. Materials and methods. 19 patients with chronic viral hepatitis B (HBV) and chronic viral hepatitis C (HCV) with chronic renal failure and patients with chronic kidney disease (KD) were examined. Comparison group included 40 healthy blood donors. Epidemiological, clinical and laboratory examination was performed. Indicators of endogenous intoxication, nonspecific reactivity and inflammatory activity were calculated and analyzed using statistical criteria (M±m, Student's test and Mann–Whitney test). Results: an increase in the integrative indicators of endogenous intoxication in patients with the combined pathology of chronic KD and chronic viral hepatitis (VH) is a consequence of the activation of tissue disintegration, cytolysis of hepatocytes and a significant impairment of liver function. A change in the indices of non-specific inflammation indicate expressed activity of the inflammatory process and immunological disorder of reactivity. These changes also suggest decompensated endotoxicosis, as a possible consequence of a chronic infectious process and decompensated endogenous intoxication. Indicators of leukocyte intoxication index (LII), leukocyte shift index (ISL), hematological intoxication index (HII), intoxication index severity (IIS), immunoreactivity index (IR), neutrophil-monocyte ratio (NMR) are increased in all patients with chronic KD, which may be related to the actual cause of development – glomerulonephritis, chronic pyelonephritis, concomitant pathology. More pronounced deviations were found in men of both groups than in women, which may be related to greater adherence to diet, water load between hemodialysis procedures in the latter. Conclusions. Patients receiving invasive manipulations, including hemodialysis, belong to the risk group and are more susceptible, taking into account immunodeficiency, to infection with hepatitis viruses than the general population. CVH is one of the most common types of lesions in them. The obtained changes, namely, a more pronounced increase in the integrative indicators of endogenous intoxication, in patients with the combined pathology of CKD and CVH indicate the activation of the processes of tissue decay, cytolysis of hepatocytes and significant liver function impairment. At the same time, a change in indices of non-specific inflammation indicates a pronounced activity of the inflammatory process and an immunological disorder of reactivity. A clear systemic reaction to inflammatory processes in the body of patients is determined, the probable development of decompensated endogenous intoxication, which is possible consequence of a chronic infectious process. A simultaneous increase in ISL and a decrease in ILG was established, which is associated with the development of endogenous intoxication and a violation of immunological reactivity due to autointoxication of the body. A decrease in Ilymph indicates an active adaptive reaction of white blood cells and a cell-type immunodeficiency, in particular, a decrease in non-specific anti-infective protection. Indicators of LII, ISL, HII, IIS, IR, NMR are increased in all patients with CKD, which may be related to the actual cause of development – glomerulonephritis, chronic pyelonephritis, etc. The difference of integrative indicators between men and women was established, more pronounced deviations from normal were found in men of both groups than in women, which may be associated with greater adherence to diet, water load between hemodialysis procedures in the latter.

Minimally Invasive Sub-Retinal Transplantation of RPE-J Cells on a Biodegradable Composite PCL/Collagen Nanosheet

Retinal cells are irreparably damaged by diseases such as age-related macular degeneration (AMD). A promising method to restore partial or whole vision is through cell-based transplantation to the damaged location. However, cell transplantation using conventional vitreous surgery is an invasive procedure that may induce infections and has a high failure rate of cell engraftment. In this study, we describe the fabrication of a biodegradable composite nanosheet used as a substrate to support retinal pigment epithelial (RPE-J) cells, which can be grafted to the sub-retinal space using a minimally invasive approach. The nanosheet was fabricated using polycaprolactone (PCL) and collagen in 80:20 weight ratio, and had size of 200 µm in diameter and 300 nm in thickness. These PCL/collagen nanosheets showed excellent biocompatibility and mechanical strength in vitro. Using a custom designed 27-gauge glass needle, we successfully transplanted an RPE-J cell loaded nanosheet into the sub-retinal space of a rat model with damaged photoreceptors. The cell loaded nanosheet did not trigger immunological reaction within 2 weeks of implantation and restored the retinal environment. Thus, this composite PCL/collagen nanosheet holds great promise for organized cell transplantation, and the treatment of retinal diseases.

Post-COVID-19 Vaccination and Thyrotoxicosis (ASIA Syndrome): Single-Centre Experience from India with Review of Literature.

Thyrotoxicosis is not uncommon after immunization. It is known as 'autoimmune/autoinflammatory syndrome by adjuvants (ASIA syndrome)' and is caused by immunological reaction to adjuvants. However, there is insufficient information on thyrotoxicosis after COVID-19 vaccination in the Indian subcontinent. To investigate the spectrum of thyrotoxicosis after COVID-19 immunization. A single-centre retrospective study was conducted at a tertiary care academic institute in India. We studied the clinical symptoms, biochemical markers, imaging characteristics and treatment of every patient who was diagnosed with thyrotoxicosis within 60 days of receiving the COVID-19 vaccine. Following COVID-19 vaccination, we diagnosed ten people (mean age 39.9 years, range 22-63 years) with thyrotoxicosis [Graves' disease (GD, n-6) and subacute thyroiditis (SAT, n-4)]. The typical duration for symptoms to appear was 2 to 60 days. The majority of patients (n-9) received the COVISHIELD™ vaccine, whereas only one received the COVAXIN® vaccine. After vaccination, two patients with GD developed mildly severe Graves' orbitopathy, with symptoms emerging two days and sixty days later, respectively. Anti-thyroid drugs (methimazole or carbimazole) were required for all GD patients. All SAT patients were treated conservatively with nonsteroidal anti-inflammatory medications and had positive outcomes. SAT, GD and GO may occur as a manifestation of ASIA syndrome, following immunization with COVISHIELD™ and COVAXIN®. Despite the obvious benefits of the COVID-19 vaccine, clinicians should be aware of any potential autoimmune and inflammatory thyroid problems.

REVIEW ON THE IMPACTS OF DRUG RESIDUE IN ANIMALS PRODUCT ON HUMANS HEALTH ISSUES

The use of veterinary drugs in food-producing animals may result in drug residues in foodstuffs such as meat, milk, eggs, or honey. High degree of antibiotics residues consumption from animal products to human might affect immunological reactions and can unfavourably influence digestive microbiota in susceptible people. Antimicrobials also known as antibiotics, anti-infectives, antibacterials or chemotherapeutics, include synthetic and natural compounds. The introduction of antibiotics to the veterinary field started soon after the use of antibiotics for the treatment of bacterial diseases in humans. Detection of drug residues from tissues and other animal products could be quite an expensive, time consuming and laborious venture. To determine the withdrawal period, regulatory authorities must employ a scientific process that includes establishing the Maximum Residue Limit for that medicine. The growing use of antimicrobials to prevent and treat diseases, increases the probability of residues of these substances in products obtained from animals. Resistant microorganism can get access to human, either through direct contact or indirectly via milk, meat, and or egg. The ongoing threat of antibiotic contamination is one of the biggest challenges to public health that is faced not only by the African people, but also by the human population worldwide. Globally, more than half of all medicines are prescribed, dispensed or sold improperly. The first step in residue prevention is to make individuals and organizations aware of the problem through education by means of scientific literature, computer databases, veterinary consultations and the efforts of national organizations.

Homeopathic approach to food allergy

:The term "food allergy" refers to an adverse immunological reaction to a particular food. Allergy caused by certain food gives an unpleasant response to the immune system and is linked through a wide variety of clinical features which may contain any tissue or part of the body, including the integumentary system, alimentary tracts, and organs involved in breathing and circulatory system. The utmost common cause of an allergic response is a food allergy mediated by the antibody Immunoglobulin E (IgE). This article focuses on the development of the disease as affected by the immune system, its causes, sign and symptoms, and management, and aims at how homeopathic remedies manage such diseases through its holistic approach to treatment.

Laboratory Testing in Transfusion Medicine.

Canine and feline transfusions are life-saving procedures that have become increasingly common in veterinary medicine. Laboratory testing plays a vital role in transfusion medicine, particularly in the prevention and diagnosis of transfusion reactions. Laboratory tests should be used to screen donors for their general health and for the presence of any blood-borne pathogens. Pretransfusion blood typing and compatibility testing make immunologic reactions less likely, and commercial typing and crossmatching kits are now available. Appropriate diagnostic tests in the face of a potential transfusion reaction are important to tailor effective therapy.

Prevalence of Weak D Antigen in Rh Negative Blood Group: An Experience at a Tertiary Blood Centre in Bengaluru, Southern India

Introduction: The Rh blood group system, consisting of more than 50 different antigens, is the most polymorphic among human blood types. Among them, D is the most important antigen. The incidence of weak (Du) antigens ranges from 0.2 to 1%. Routine screening for RhD does not cause agglutination with anti-RhD serum; therefore, it must be detected using anti- human globulin serum. Due to the potential immunological reaction of Du-positive cells in RhD-negative individuals, it is crucial to emphasise the therapeutic implications of this finding and its relation to the risk of alloimmunisation. Aim: To determine the frequency of the Du antigen among RhD- negative individuals. Materials and Methods: This five-year hospital-based cross- sectional study was conducted from January 2017 to January 2022 in the Department of Transfusion Medicine at ESIC MC and PGIMSR, Bengaluru, Karnataka, India. ABO and Rh blood group samples were collected in EDTA vacutainers from the blood collection centre and sent to the Department of Transfusion Medicine. Data analysis was performed using Microsoft Excel. Results were presented as numbers and percentages. ABO and Rh blood group typing were carried out using the tube method (immediate spin tube technique), and negative samples were further tested for weak D (Du) using the Gel card system. The Rh-negative cases with Du testing were recorded, and the frequency of the Du antigen in Rh-negative blood group types was determined. Results: A total of 69,282 blood samples were analysed, of which 66,442 (95.90%) were Rh positive, and 2,840 (4.10%) were Rh negative. The male-to-female ratio was 1:1.79. Out of the total 2,840 Rh-D negative samples, 31 samples were weak D positive. Among them, 06 (0.85%) belonged to the A blood group, 12 (1.63%) to the B blood group, 12 (1.01%) to the O blood group, and 1 (0.47%) to the AB blood group. The Du positivity noted among the Rh-negative cases was 1.09%. The overall Du positivity noted among all the samples was 0.045%. Conclusion: To prevent RhD mismatches, which can lead to life-threatening complications, it is advised to retype all Rh- negative blood samples using a Du test during routine grouping. This is because weak D antigen is immunogenic and capable of producing alloimmunisation if transfused to RhD-negative individuals.

Clinicodemographic and laboratory features of 200 Egyptian psoriatic patients

Background Psoriasis is a common and complex multifactorial disease, in which both genetic and extrinsic factors contribute to activating an immunological reaction. Objectives This study aimed to evaluate the clinical, demographic, and laboratory characteristics of Egyptian psoriatic patients in Sohag, Upper Egypt. Patients and methods This study was a cross-sectional hospital-based study conducted on 200 Egyptian psoriatic patients. All the patients were subjected to complete demographic, clinical, and laboratory evaluations. Results Of the 200 Egyptian patients with psoriasis, the mean age was 42.83±17.3 years; 60% were males, 53% were from rural areas, 47% were smokers, 66% were with positive family history, 91% were with gradual onset, 75% were with a progressive course, and 6.99±3.9 months was the mean duration of the diseases. The main associated symptom with psoriasis was itching in 72%. Psoriasis vulgaris was the most common type in 69.5%. Upper limbs were the most commonly affected sites in 78% of the psoriatic patients. Seasonal variation was the most common exacerbating factor in 51.5% of psoriatic patients. Iron-deficiency anemia was detected in 31% of the psoriatic patients. Liver diseases were associated comorbidities with 29.5% of psoriatic patients and hepatitis C virus infection was presented in 4.5% of psoriatic patients. Metabolic syndrome and stress were detected in 36 and 21% of psoriatic patients, respectively. Conclusion The healthcare providers and patients should be aware of the early detection of associated comorbidities with psoriasis to avoid major complications. The recognition of stress and its specific treatment should be considered an integral part of the treatment of psoriatic patients. Screening for hepatitis is important in Egyptian psoriatic patients. Consanguineous marriage should be avoided in patients with a family history of psoriasis.

Food allergy

Food allergy is one of the adverse food reactions, which is developed by immunological reactions. Food allergy is increasing in prevalence among children and adults. In the diagnosis, food challenge is confirmative with history and laboratory tests. Avoidance of culprit food is the only preventive method, especially in patients with severe symptoms. In some food allergies, crossreactivity among allergens should be considered. Latex-fruit/vegetable syndrome and pollen food allergy syndrome are well-understood phenotypes of food allergy related to cross reaction. Red meat allergy is recently described as one of tick-borne diseases. In a rare phenotype of food-dependent exercise-induced anaphylaxis, factors affecting the absorption of food allergen are important in its pathophysiology.

Immunohistochemical Effects of Ethyl Acetate Fraction of Lycopersicum Esculentus on the Kidney in Experimentally Induced Diabetic Wistar Rats

Diabetic nephropathy (DN) as a leading cause of end-stage renal failure which has become source of concern recently. The aim of this study was to investigate the effect of EAFL on the histomorphology and evaluate its effect on inflammatory markers in Streptozotocin- Induced diabetic Wistar rats. This study was conducted using thirty male Wistar rats. The animals were divided into five groups of 6 rats each (n=6). Group A was the control animals ( administered with 20 ml/kg/day of citrate buffer orally (p.o) stat for 4 weeks. Group B was induced with 65 mg/kg of streptozotocin in citrate buffer intraperitoneally stat and observe for four weeks without treatment. Group C,D and E were the test groups that received 65 mg/kg of streptozotocin in citrate buffer intraperitoneally stat and 20, 40 and 60 mg/kg/day of EAFL respectively for four weeks after induction of diabetes. Descriptive and inferential statistics were used to analyze the data. The results showed reduction in serum insulin levels in diabetic groups which was reversed to normal when the intervening agent (EAFL) was administered. The histology of the kidneys showed distortion in renal corpuscles which was reversed when EAFL was administered. The immunohistochemistry of kidney tissues in the normal group (A) showed areas of Ag-Ab immunological reactivity, however, there was no reactivity in the diabetic groups. The study concluded that EAFL has anti glycemic and anti inflammatory effect on the kidneys of Streptozotocininduced diabetic Wistar rats.

The stimulator of interferon genes (STING) agonists for treating acute myeloid leukemia (AML): current knowledge and future outlook.

Acute myeloid leukemia (AML) is an aggressive hematologic cancer in adults. Some patients exhibit restricted T cell infiltration and do not respond to routine treatments. This may be prevented by enhancing adaptive immunity by stimulating innate immune cells inside the tumor microenvironment (TME). To activate the adaptive immunological reaction against tumors, type I interferons (IFNs) can promote the presentation of tumor-specific cytotoxic T lymphocyte (CTL) cell recruitment. During the activation of innate immunity, cyclic di-nucleotides (CDNs) bind to and stimulate the stimulator of interferon genes (STING), a protein localized inside the endoplasmic reticulum (ER) membrane, resulting in the expression of type I IFNs. The efficacy of STING agonists as effective stimulators of the anti-tumor response in AML is being investigated in numerous clinical studies. Therefore, the purpose of this investigation was to thoroughly review existing knowledge in this field andprovide perspective into the clinical potential of STING agonists in AML.