From the Origins of SARS-CoV-2 to the Correct Application of BLAST. TT -.

Basic local alignment search tool (BLAST) is one of the popular sequence similarity analysis tools. However, some students and researchers just blindly use the default parameters. Moreover, some students are confused about how to choose the right program. In a word, it is prone to be misused and researchers often draw conclusions incorrectly. In view of this, we traced back the internet hot topic in early 2020 - "MORDERATELY STRONG CONFIRMATION OF A LABORATORY ORIGIN OF COVID-19", and took it as teaching materials to guide the student to use BLAST currently through reanalyzing and reproducing the source of errors. Then we arranged an interesting experiment about fabricating dinosaur genes through modifying a chicken gene. In the experimental design to make the students grasp the BLAST tools better, one group fabricated the dinosaur gene and the other group decrypted the added bases. This instructional design could be conducive to cultivate students ' ability about distinguishing different viewpoints correctly, and we hope it can be enlightening and helpful to the teaching of BLAST tools.Copyright © 2022 by the authors.

Outcome of Haploidentical Hematopoietic Stem Cell Transplantation with a Donor and Recipient Infected with SARS-CoV-2 Infection

The current coronavirus disease 2019 (COVID 19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS CoV 2), has impacted many facets of hematopoietic cell transplantation (HCT) in both developed and developing countries. The full impact of the COVID 19 pandemic, caused by the SARS CoV 2, on the field of hematopoietic cell transplantation (HCT) is unknown. Here, we report a rare case of a 21-year-old male patient known to have chronic myeloid leukemia (CML) with progression to T-cell lymphoblastic lymphoma as extramedullary blast crisis of CML. The patient was treated by pediatric chemotherapy regimen then. He underwent haploidentical stem cell transplantation. Posttransplantation, on day +7, he developed SARS-CoV-2 after receiving stem cell graft from a donor who was diagnosed with SARS-CoV-2 on the day of stem cells harvesting. The case elaborates complications and outcome of a patient receiving stem cell transplant from a donor with SARS-CoV-2 infection.Copyright © 2023 Journal of Applied Hematology Published by Wolters Kluwer - Medknow.

Co-occurrence of CML Blast Crisis and Severe COVID 19 Infection: A Case Report.

Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) affecting multiple organ systems. It can cause severe cytokine storms leading to intensive care unit admission requiring mechanical ventilation. However, there have been few studies establishing the outcomes of chronic myeloid leukemia (CML) patients on tyrosine kinase inhibitors who are infected with COVID-19. We present a 69-year-old male with a history of CML on imatinib therapy with COVID-19 who developed acute respiratory distress syndrome needing mechanical ventilatory support, shock requiring vasopressors, and worse outcome secondary to blast crisis.

COVID-style gene surveillance to fight wheat fungus

See PDF] First reported in Brazil in 1985, wheat blast disease spreads through infected seeds, crop residues and spores that can travel long distances in the air. "Wheat is a staple food for 35 per cent of the world's population, so a disease that threatens pandemic potential could cause serious food security implications,” she told SciDev.Net. "Thanks to the prompt and public release of genomic data by the international scientific community through the OpenWheatBlast initiative, we were able to detect, track, and characterise the fungal lineage responsible for recent wheat blast outbreaks,” said lead author Sergio Latorre Ochoa from University College London.

Occlusive Explosion

Clinical Information Patient Initials or Identifier Number: A Relevant Clinical History and Physical Exam: 47yr old man, suffered a blast injury at the workplace after an O2 tank exploded while he was transferring liquid gas into a tank for welding purposes. The impact has caused him to temporary loss of consciousness. Upon awakening, he had severe chest pain associated with shortness of breath. On examination, superficial partial thickness injury on the chest wall, and lungs: reduced breath sound bi-basally, no murmur heard. BP:106/77mmHg, HR:100/min, SPO2 100% on HFM 15L/min. [Formula presented] [Formula presented] [Formula presented] Relevant Test Results Prior to Catheterization: Serial ECGs were done and showed dynamic changes in the anterior leads Bedside echo before invasive coronary angiograms shows mild LVSD, normal valves, and no pericardial effusion [Formula presented] [Formula presented] Relevant Catheterization Findings: Right radial approach 6F system Opitorque catheter for diagnostic angiogram LMS: smooth LAD: ATO mid LAD, DG1 prox ATO LCx: smooth RCA: smooth Impression: ATO to LAD and Diagonal 1 ( Dual ATO) [Formula presented] [Formula presented] [Formula presented] Interventional Management Procedural Step: Right radial coronary angiogram via 6F system EBU 3.0 engaged with good support Sion blue wired into LAD, export catheter delivered, and aspirated red thrombus Pre-dilated with Sapphire 3 SC 2.5x15mm @ 6-10ATM Flow established in LAD, however, decided to interrogate DG1 as it shows ATO BMW wired into the DG1 and pre-dilated with Sapphire 3 SC 2.0x15mm Noted nonflow limiting dissection and decided to stent DG1 with 2.25x34mm@12ATM, dissection sealed and TIMI III flow established Stented mid LAD with 2.5x30mm @12ATM just before LAD/DG1 bifurcation, then stented proximal LAD with 2.5x 26mm@ 12ATM. Post-dilated LAD with 2.75x15mm@ 14-20ATM TIMI II-III flow IV Tirofiban has been given a loading dose due to a high thrombus burden and sluggish flow [Formula presented] [Formula presented] [Formula presented] Conclusion(s): Myocardial infarction is a rare complication of blunt chest trauma. This case demonstrates how blast shock waves result in the dissection of the coronary vessel leading to total occlusion of the two vessels. It also promotes red thrombus within the coronary vessels. Percutaneous coronary intervention is the most suitable way to treat this condition. Intravascular imaging such as IVUS or OCT would be beneficial to demonstrate the physiology behind this MI and would also be helpful in planning and optimizing the lesions. Unfortunately, intravascular imaging was not used for this patient to reduce procedural time as he was treated during the height of the COVID pandemic.Copyright © 2023

An unexpected diagnosis: Good's syndrome

Case report Introduction: Good's syndrome (GS) represents an acquired adult-onset immunodeficiency associated with thymoma. GS affects patients over 40 yrs in form of recurrent infections especially with encapsulated bacteria, opportunistic viral and fungal invasions as a result of combined T/B cell deficiency. The imbalanced immunity may also provoke autoimmune phenomena and tumorigenesis. Case report: We present a 40-year- old male with a newly onset of dull thoracic pain and with no history of previous diseases. Chest CT revealed an anterior mediastinal mass in 2021, without lympadenopathy. A CT-guided core biopsy was suggestive for malignant thymoma, so the patient underwent total thymectomy. Histology indicated a thymoma of the AB type (WHO), and stage I. (Masaoka-Koga);(pT1a pNo). After surgery he was readmitted due to recurrent febrile respiratory tract infections, caused by Gram (-) bacteria or fungi;combination therapy of antibiotics and antifungal drugs was used. With suspicion of GS we determined immunoglobulin levels and the distribution of peripheral lymphocyte subsets. Hypogammaglobulinemia (IgG/A/M), and by flow cytometry markedly reduced peripheral B cells, and an inverse ratio of CD4+/CD8+ T cells were detected, confirming the diagnosis. Blast transformation assay indicated decreased T cell proliferation. Thus, following thymectomy, the patient exhibited severe T/B cell alterations with subsequent recurrent infections. Detailed autoantibody and complement analyses indicated no autoimmune laboratory abnormalities so far. There are still no effective protocols for GS therapy, except of antibiotic prophylaxis, preventive vaccination, and regular immunoglobulin replacement, so IVIG was introduced. As part of the follow-up repeated CT indicated no thymoma recurrence or metastasis. In December 2021 the vaccination refusing patient survived a severe bilateral organizing pneumonia secondary to SARS-CoV2. Conclusion(s): Incidence of the thymic epithelial tumor, thymoma is 0.15-0.33 cases/100.000/year. Depending on histology it could be linked to various immunological abnormalities. Appr. 0.2%-6% of thymomas corresponds to GS. GS, with a still elusive pathogenesis is considered as an uncommon combined immunodeficiency of adults with a variable phenotype and certain similarities to CVID. The prevalence is estimated appr. as 1/500.000. Combination of the high infection susceptibility and concomitant autoimmune diseases could make the diagnosis a challenging task.

Measuring carbon emissions performance of Japan's metal industry: Energy inputs, agglomeration, and the potential for green recovery reduction

This study measures the total factor carbnon dioxide (CO2) emissions performance of the metal industry, iron and steel, nonferrous metal, and metal processing industries in 39 Japanese prefectures from 2008 to 2019. The true fixed-effects panel stochastic frontier model identifies regional carbon efficiency as well as the inefficiency determinants. The main results are as follows. First, a decrease in the coal ratio and an increase in the electricity ratio in total energy consumption improves efficiency. This result suggests that electrification in the metal industry, especially conversion from blast furnaces to electric furnaces in the iron and steel industry, contributes to reducing carbon emissions. Second, industrial agglomeration improves carbon emissions performance in the metal industry. This implies that agglomeration and decarbonization policies focusing on there are more effective, rather than a uniform national policy. Third, compared to the cumulative CO2 emissions over the sample period, 49,017 × 103 tons, the cumulative CO2 mitigation potential is 29,703 × 103 tons, indicating that CO2 emissions can be reduced by 60.6% without affecting the output. Forth, to examine the green economic recovery with efficiency in Japan's metal industry after COVID-19, we present a simple scenario analysis where a k% replacement coal ratio with an electricity ratio in total energy consumption, assuming that each prefecture will achieve the maximum CO2 emission amount during the sample period. By replacing 10% of the coal ratio with the electricity ratio, CO2 emissions can be reduced by 23.0%. In the case of a 20% replacement, CO2 emissions can be reduced by 33.0%. Our results show that Japan's targets in the post-COVID-19 green recovery process should be a decrease in coal consumption, an increase in electricity, and industrial agglomeration. © 2023 Elsevier Ltd

The impact of the Beirut blast on the COVID-19 situation in Lebanon.

AIM: On August 4, 2020, a massive explosion hit Lebanon's capital city, Beirut. The aim of this study was to explore the effect of the Beirut blast on the COVID-19 situation in the country. SUBJECT AND METHODS: Data on COVID-19 were retrieved from the Lebanese Ministry of Public Health (LMOPH), where all the COVID-19 positive cases were reported. The study was divided into two periods, considering the incubation period of the COVID-19 virus: (July 27-August 9, 2020) and (August 10-23, 2020). Information obtained included daily number of cases, tests, deaths, hospitalized patients, intensive care unit (ICU) patients, and mode of acquisition (local vs. expat). Daily positivity rates were reported per 100 tests. An independent sample t-test and a Joinpoint regression analysis were used to determine significance. A p value less than 0.05 was considered significant. RESULTS: A total of 201,010 tests were conducted during our studied period, with 8993 positive cases, constituting a total positivity rate of 4.5 per 100 tests. Case fatality rate over the studied period was 0.8%. The positivity rate of the period prior to August 10, 2020, was 2.7 per 100 tests, significantly less than that of the period following the explosion, which was 6.4 per 100 tests (p < 0.001). During our studied period, daily positivity rates were significantly increasing at a slope of 0.29 (p < 0.001). A significant increase in slope was noted on August 13, 2020 (p < 0.001). The number of hospitalized patients increased from 139 patients on July 27 to 266 on August 23, 2020, and that of ICU patients increased from 36 to 75. CONCLUSION: The port of Beirut explosion resulted in a significant increase in the daily number of positive COVID-19 cases. The aftermath of the explosion, the damage to healthcare facilities, and the overcrowding due to emergency efforts were contributing factors to that increase.

Beirut Blast: The Experiences of Acute Care Hospitals.

Mass Casualty Incidents recently increased in intensity and frequency at an unprecedented rate globally. On August 4, 2020, a massive blast hit the Port of Beirut severely damaging its healthcare sector. This study aims to provide a comprehensive understanding of the impact of the Beirut blast on acute care hospitals in the Beirut area, with a focus on understanding healthcare professionals' (HCPs) responses and encountered challenges. A qualitative research design method was adopted to evaluate the experiences of HCPs at acute hospitals located within 5 kilometers of the blast epicenter. 9 hospitals participated in the study. 11 semi-structured interviews were conducted with key informant HCPs using a designed interview guide. HCPs reported severe infrastructural damages in their corresponding hospitals, and 2 were completely non-functional post-blast. Other than physical injuries sustained by HCPs, the blast imposed substantial strains on their mental health, exacerbated by the ongoing socio-economic crises in Lebanon. Moreover, the findings revealed critical challenges which hindered hospitals' emergency responses at the level of communication, coordination, and human resources, as well as supplies. Participants urged for the need to conduct proper triage, arrange emergency operating centers, and deploy outdoor treatment tents among others, to effectively respond to future disasters. The Beirut blast overwhelmed the Lebanese healthcare system and challenged its level of emergency preparedness. This generated evidence to address the deficiencies and strengthen the existing hospitals' emergency response plans. Future efforts should include prioritizing hospitals' emergency preparedness to ensure the provision of care at increased capacity following the impact of a large-scale disaster.

D155Y substitution of SARS-CoV-2 ORF3a weakens binding with Caveolin-1.

The clinical manifestation of the recent pandemic COVID-19, caused by the novel SARS-CoV-2 virus, varies from mild to severe respiratory illness. Although environmental, demographic and co-morbidity factors have an impact on the severity of the disease, contribution of the mutations in each of the viral genes towards the degree of severity needs a deeper understanding for designing a better therapeutic approach against COVID-19. Open Reading Frame-3a (ORF3a) protein has been found to be mutated at several positions. In this work, we have studied the effect of one of the most frequently occurring mutants, D155Y of ORF3a protein, found in Indian COVID-19 patients. Using computational simulations we demonstrated that the substitution at 155th changed the amino acids involved in salt bridge formation, hydrogen-bond occupancy, interactome clusters, and the stability of the protein compared with the other substitutions found in Indian patients. Protein-protein docking using HADDOCK analysis revealed that substitution D155Y weakened the binding affinity of ORF3a with caveolin-1 compared with the other substitutions, suggesting its importance in the overall stability of ORF3a-caveolin-1 complex, which may modulate the virulence property of SARS-CoV-2.

Treatment of blast phase chronic myeloid leukaemia: A rare and challenging entity.

Despite the success of BCR-ABL-specific tyrosine kinase inhibitors (TKIs) such as imatinib in chronic phase (CP) chronic myeloid leukaemia (CML), patients with blast phase (BP)-CML continue to have a dismal outcome with median survival of less than one year from diagnosis. Thus BP-CML remains a critical unmet clinical need in the management of CML. Our understanding of the biology of BP-CML continues to grow; genomic instability leads to acquisition of mutations which drive leukaemic progenitor cells to develop self-renewal properties, resulting in differentiation block and a poor-prognosis acute leukaemia which may be myeloid, lymphoid or bi-phenotypic. Similar advances in therapy are urgently needed to improve patient outcomes; however, this is challenging given the rarity and heterogeneity of BP-CML, leading to difficulty in designing and recruiting to prospective clinical trials. This review will explore the treatment of BP-CML, evaluating the data for TKI therapy alone, combinations with intensive chemotherapy, the role of allogeneic haemopoietic stem cell transplantation, the use of novel agents and clinical trials, as well as discussing the most appropriate methods for diagnosing BP and assessing response to therapy, and factors predicting outcome.

Variable number tandem repeats of a 9-base insertion in the N-terminal domain of severe acute respiratory syndrome coronavirus 2 spike gene.

Introduction: The world is still struggling against the pandemic of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), in 2022. The pandemic has been facilitated by the intermittent emergence of variant strains, which has been explained and classified mainly by the patterns of point mutations of the spike (S) gene. However, the profiles of insertions/deletions (indels) in SARS-CoV-2 genomes during the pandemic remain largely unevaluated yet. Methods: In this study, we first screened for the genome regions of polymorphic indel sites by performing multiple sequence alignment; then, NCBI BLAST search and GISAID database search were performed to comprehensively investigate the indel profiles at the polymorphic indel hotspot and elucidate the emergence and spread of the indels in time and geographical distribution. Results: A polymorphic indel hotspot was identified in the N-terminal domain of the S gene at approximately 22,200 nucleotide position, corresponding to 210-215 amino acid positions of SARS-CoV-2 S protein. This polymorphic hotspot was comprised of adjacent 3-base deletion (5'-ATT-3'; Spike_N211del) and 9-base insertion (5'-AGCCAGAAG-3'; Spike_ins214EPE). By performing NCBI BLAST search and GISAID database search, we identified several types of tandem repeats of the 9-base insertion, creating an 18-base insertion (Spike_ins214EPEEPE, Spike_ins214EPDEPE). The results of the searches suggested that the two-cycle tandem repeats of the 9-base insertion were created in November 2021 in Central Europe, whereas the emergence of the original one-cycle 9-base insertion (Spike_ins214EPE) would date back to the middle of 2020 and was away from the Central Europe. The identified 18-base insertions based on 2-cycle tandem repeat of the 9-base insertion were collected between November 2021 and April 2022, suggesting that these mutations could not survive and have been already eliminated. Discussion: The GISAID database search implied that this polymorphic indel hotspot to be with one of the highest tolerability for incorporating indels in SARS-CoV-2 S gene. In summary, the present study identified a variable number of tandem repeat of 9-base insertion in the N-terminal domain of SARS-CoV-2 S gene, and the repeat could have occurred at different time from the insertion of the original 9-base insertion.

Evaluation of Sight Olo Haematology Analyser for Pandemic Use

Introduction: During the early COVID-19 pandemic period in 2020, the laboratory evaluated Sight OLO haematology analyser as a dedicated instrument for infectious specimens. The Sight OLO analyser is compact, reliable and capable of self-contained waste production to limit biological waste exposure. The instrument can be used in isolation wards, Biosafety Level 3 laboratories or in smaller laboratories. A comparative study is conducted between Sight OLO and Sysmex XN-10 analyser, the blood count analyser used in the main laboratory. Method(s): There were two phases of study. Phase one evaluation was conducted on the haematology bench and Phase two evaluation inside a Biosafety cabinet (BSC). A comparative study is conducted using 40 normal and abnormal K2EDTA samples for each phase. Precision study was conducted using control materials provided by the manufacturer. Sensitivity and specificity studies were also conducted using 100 K2EDTA samples. Result(s): The blood count results of Phase 1 and Phase 2 on Sight OLO demonstrated good concordance with Sysmex XN-10. High agreement between Sight OLO and Sysmex XN- 10 was reflected in the results of regression analysis. The correlation value of FBC parameters ranged from 0.90 to 0.99. The Sight OLO is capable of detecting the presence of blast cells, nucleated RBCs, platelet clumps, atypical lymphocytes, immature granulocytes and platelet abnormal distribution. Conclusion(s): The study demonstrated that the performance of Sight OLO is comparable to Sysmex XN-10 hematology analyser. The instrument has a high potential use in small laboratories for pandemic sample testing or in institutions with limited space and resources.

Hyperviscosity Syndrome Complicating Igg Myeloma - Cognizance of Early Plasmapheresis Is Crucial

BACKGROUND: Hyperviscosity syndrome (HVS) is an infrequent but life-threatening complication of multiple myeloma (MM) and classically presents with the triad of mucosal bleed neurological and visual disturbances. HVS is typically associated with Immunoglobulin M (IgM) MM and very rarely may complicate IgG MM. Even suspicion of HVS necessitates therapy based on clinical severity rather than the calculated degree of viscosity. While plasmapheresis promptly decreases serum viscosity by 30-50% early initiation of antimyeloma therapy is crucial to prevent rebound phenomena. AIM OF THE STUDY: In this context, we report a case of IgG MM which despite being complicated by HVS had gratifying outcome attributable to early clinical suspicion and consequent prompt therapeutic intervention. METHOD(S): Case report - A 60-year-old lady presented with headache altered sensorium blurring of vision and bleeding from both nostrils of two days duration. She also had breathlessness on exertion and generalized fatigue for one month. Clinical evaluation was remarkable for pallor hypertension (blood pressure - 160/96 mm Hg) tachypnea (respiratory rate - 26/minute) with blood clots in nostrils bleeding from gums dry tongue and skin bruising on the arms. Besides altered mentation neurological evaluation revealed bilateral venous congestion and perivenular flame-shaped hemorrhages on direct ophthalmoscopy. There were no features of heart failure peripheral lymphadenopathy or organomegaly. Her initial blood sampling was difficult as blood was rapidly clogging during sampling itself. After rapid saline infusion, samples could be drawn and processed. Hemogram showed normocytic normochromic anemia (hemoglobin-6.3%g/ dL) thrombocytopenia (platelets -71 000/mm3) and rouleaux formation without hemolysis or blast cells on peripheral blood smear. SARS-CoV-2 PCR was negative. She had reversal of albumin-globulin ratio (total protein -10.6 g/dL;albumin -2.1 g/dL) hypercalcemia (corrected calcium - 14 mg/dL) and raised creatinine of 2.5 mg/dL. Her coagulation profile was essentially normal. Computed tomography images of head chest and abdomen were essentially normal. Further evaluation revealed M-spike (5.3%gm/dL) on serum protein electrophoresis raised IgG (4.69 g/dL) increased kappa light chain (kappa 171 mg/L lambda 24.3 mg/L;ratio -7) on serum-free light chain assay monoclonal band of IgG Kappa on serum immune-fixation electrophoresis. Bone marrow aspiration revealed 60% plasma cells (Figure-1) with sheets of plasma cell on bone marrow biopsy having kappa-restriction on immunohistochemistry thereby confirming multiple myeloma and ruled out remote possibility of lymphoplasmacytic lymphoma-related HVS. In view of presumptive HVS complicating multiple myeloma patient was managed with urgent plasmapheresis and consequently initiated on bortezomib-based anti-myeloma triplet therapy including lenalidomide and dexamethasone (VRd) besides supportive therapy for hypercalcemia and acute kidney injury. After three sessions of plasmapheresis patient showed complete resolution of symptoms of HVS with remarkable change in plasma color (Figure-2). Her acute kidney injury also recovered by day-7, and she went home walking on day-10 of her hospitalization. Two months later she was tolerating her chemotherapy well with complete resolution of hypergammaglobulinemia. Six months later she is in complete remission and is being planned for autologous hematopoietic stem cell transplant. RESULT(S): Discussion - Classical triad of HVS include mucosal bleed, neurological disorders, and visual disturbances.5 Presence of oro-nasal bleed mandates thorough retinal evaluation since hemorrhages may occur without visual symptomatology. Furthermore, clinical signs include hypertension, congestive heart failure5, priapism6, and decreased hearing merit consideration. Structure of protein is an important determinant of viscosity, whereby spherical proteins rotate through plasma and contribute very little and large linear proteins spin end over end and raise viscosity disproportionatel . Likewise, IgM (molecular weight of 950 Kd) has a high axial length-to-width ratio and, therefore, raises plasma viscosity at levels above 5 g/ dL. IgA circulates as a dimer, and results in HVS at levels above 7 g/dL7. HVS complicating IgG MM with IgG circulating as a monomer (molecular weight of 180 Kd) is rare and accounts for less than 5% of cases and requires IgG level usually above 10 g/dL7. Even presumptive suspicion of HVS necessitates therapy based on clinical severity rather than the calculated degree of viscosity as correlation between serum viscosity and clinical manifestation is not precise;nevertheless, symptoms attributable to HVS are rare if serum viscosity is less than 4 centipoise (CP) [normal value -1.5 CP]. With rapid symptomatic relief following plasmapheresis, absence of further therapeutic and prognostic implications and logistic constraints, serum viscosity and Ig G subtyping8 couldn't be estimated in the index case. As IgM is predominantly limited to intravascular space (over 80%), only a single session of plasma exchange (removal of 1-1.5 plasma volume) typically, decrease plasma viscosity by 30% to 50%, and reduce IgM level by 60%9 and is generally sufficient to abate acute symptoms in patients with IgM-related HVS. In contrast, maximum of three sessions of plasmapheresis10 may be needed in IgG-related HVS (due to late and less efficient removal of IgG as it is near equally distributed between the intravascular space and extravascular space) or if the viscosity remains over six CP11. Although International Myeloma Working Group does not specifically identify HVS as myeloma-defining event, clearly its presence warrants Bortezomib-based chemotherapy for rapid decline of Ig levels.5 However, pharmacological treatment should never be considered as an alternative to plasma exchange for immediate hyperviscosity reduction.5 Moreover, patients with HVS tend to have plasma volume expansion;hence, actual anemia may be partially dilutional. Consequential red blood cell transfusion can have negative rheological impact of adding red cells to the circulation and further increase in blood viscosity and worsen HVS.5 Therefore, red blood cell transfusion is recommended only after blood viscosity reduction. Symptomatic HVS consequent to IgG MM with IgG levels below 5 g/dL7 is infrequent and hence reported for its novelty. Moreover, early clinical suspicion of HVS and consequent pre-emptive plasmapheresis (even before completion of work-up of MM) may improve clinical outcome as evident in the index case. CONCLUSION(S): To conclude, neurological dysfunction at presentation of MM with / without mucosal bleed and visual disturbance should caution us toward an albeit infrequent, yet devastating complication of HVS, which is otherwise potentially reversible subject to early clinical suspicion and prompt initiation of appropriate therapy.

Omicron SARS-CoV-2 Variants in an In Silico Genomic Comparison Study with the Original Wuhan Strain and WHO-Recognized Variants of Concern.

This study aimed to determine the genetic alterations in the Omicron variants compared to other variants of concern (VOCs) to trace the evolutionary genetics of the SARS-CoV-2 variants responsible for the multiple COVID-19 waves globally. The present study is an in silico analysis determining the evolution of selected 11 VOCs compared to the original Wuhan strain. The variants included six Omicrons and one variant of Alpha, Beta, Delta, Gamma, and Mu. The pairwise alignment with the local alignment search tool of NCBI Nucleotide-BLAST and NCBI Protein-BLAST were used to determine the nucleotide base changes and corresponding amino acid changes in proteins, respectively. The genomic analysis revealed 210 nucleotide changes; most of these changes (127/210, 60.5%) were non-synonymous mutations that occurred mainly in the S gene (52/127, 40.1%). The remaining 10.5% (22/210) and 1.9% (4/210) of the mutations were frameshift deletions and frameshift insertions, respectively. The frameshift insertion (Ins22194T T22195G) led to frameshift deletion (Δ211N). Only four mutations (C241T, C3037T, C14408T, and A23403G) were shared among all the VOCs. The nucleotide changes among Omicron variants resulted in 61 amino acid changes, while the nucleotide changes in other VOCs showed 11 amino acid changes. The present study showed that most mutations (38/61, 62.3%) among Omicron variants occurred in the S gene; and 34.2% of them (13/38) occurred in the receptor-binding domain. The present study confirmed that most of mutations developed by Omicron variants occurred in the vaccine target gene (S gene).

COVID-19 infection in patients with chronic myeloid leukemia in the Orenburg region during the SARS-CoV-2 pandemic

Background. Oncohematological patients are more predispose to SARS-CoV-2 infection than healthy individuals and patients with malignant neoplasms, and also they have a worse prognosis, which is because of immune system disorders, both due to the underlying disease and as a result of immunosuppressive therapy. There is limited data regarding the impact of SARS-CoV-2 infection on the survival of patients with chronic myeloid leukemia (CML). Aim. To evaluate the course and outcome of COVID-19 in patients with CML in the Orenburg region during the SARS-CoV-2 pandemic. Materials and methods. All 166 patients with CML over 18 years of age were analyzed during the COVID-19 pandemic between february 2020 and December 2021. The source of information was data from the personalized register of patients with CML and the unified state health information system. Results. The proportion of SARS-CoV-2 infection among patients with CML was 36 %. The risk of infection was not affected by age, gender, work features, place of residence, phase or duration of the disease, and therapy. underwent COVID-19 patients were 1.6 times more likely to be overweight and 2 times more likely to have a second cancer. A significant increase in the number of outpatient visits to polyclinics and number of hospital admissions during the pandemic was revealed in the group of patients who had SARS-CoV-2 infection. underwent COVID-19 patients were over 60 years of age in 48.3 % of cases and had one or more comorbidities in 77.6 % cases. SARS-CoV-2-infected patients with CML had a favorable outcome: a mild course of infection in 75.9 % of cases and a low mortality rate - 6.8 % (4 of 58 patients) were observed. COVID-19 was recognized as the cause of death in only 2 patients with optimal molecular response and comorbidity. In two other patients who underwent COVID-19, the progression of CML to a blast crisis was recognized as the cause of death. There were no significant differences in mortality level in the group of patients who had SARS-CoV-2 infection and those who did not have COVID-19. Conclusion. patients with CML living in the Orenburg region have a low susceptibility to SARS-CoV-2 infection and a mild course of the disease. The mortality rate for CML patients infected with SARS-CoV-2 was 6.8 %. unfavorable factors in the overall survival of patients with CML infected with SARS-CoV-2 were high comorbidity and blast crisis. Reducing the number of outpatient visits during the pandemic and using remote medical consultations is likely to reduce the risk of SARS-CoV-2 infection. Copyright © 2022 ABV-Press Publishing House. All rights reserved.

Effects of a multilayered crisis on psychiatric hospitalizations in a university hospital in Lebanon; a retrospective study.

Lebanon is struggling with a multilayered crisis following the COVID-19 breakout, the economic crisis, and the Beirut port explosion. The aim of this article is to assess the effect of these crisis on the characteristics of patients hospitalized in psychiatry. This is a retrospective study conducted at the psychiatric ward of Hotel Dieu de France in Beirut between January 2017 and march 2022. The population was divided into three groups according to specific time events indicating the start of a certain crisis. Data regarding patients' demographics, psychiatric history and their present hospitalization was collected. A total of 1655 patient files were included in the study. Overall, the rate of hospitalized women increased following the Beirut port explosion, together with the rate of patients younger than 18 years old. Moreover, during the COVID-19 breakout and the start of the economic crisis, alcohol use decreased, as well as the length of stay in the hospital. In conclusion, in the event of a multilayered crisis children and adolescents, as well as women are the most at risk of being affected in terms of mental health.

Whole Genome Analysis and Targeted Drug Discovery Using Computational Methods and High Throughput Screening Tools for Emerged Novel Coronavirus (2019-nCoV).

A novel coronavirus designated as SARS-CoV-2 in February 2020 by World Health organization (WHO) was identified as main cause of SARS like pneumonia cases in Wuhan city in Hubei Province of China at the end of 2019. This been recently declared as Global Pandemic by WHO. There is a global emergency to identify potential drugs to treat the SARS-CoV-2. Currently, there is no specific treatment against the new virus. There is a urgency to identifying potential antiviral agents to combat the disease is urgently needed. An effective and quick approach is to test existing antiviral drugs against. Whole genome analysis and alignment carried out using BLASTn, SMART BLAST and WebDSV 2.0 had shown more than 238 ORF's coding for proteins mostly origin from Bat SARS coronavirus and root genomic origin from Archaea. Molecular docking results against protein targets Furin, papain like proteases, RdRp and Spike glycoprotein had shown paritaprevir, ritonavir, entecavir and chloroquine derivatives are the best drugs to inhibit multi targets of coronavirus infection including natural compounds corosolic acid, baicalin and glycyrrhizic acid with minimal inhibitory concentrations. Thus we propose use of paritaprevir, entecavir, ritonavir and chloroquine derivatives as best drug combination along with niacinamide, folic acid and zinc supplements to treat novel coronavirus infection. We also propose use of plant protease inhibitors (PI's) and Anti-IL8, IL-6, IL-2 as future drug models against coronavirus.

Penetrating abdominal trauma: Evaluation in Baghdad during the pandemic Covid-19

Background: Trauma is one of the leading causes of deaths worldwide for all age groups, especially in the younger age group. The purpose of the current study is to assess/analyze the factors for mortality in penetrating abdominal traumas with respect to the total number of intra-abdominal organs injured, related extra-abdominal injuries, gender, type of injury, time of arrival, and amount of blood transfusion needed during the pandemic. Methods: A retrospective study including 523 patients underwent laparotomy in Al-Emamien Al-Kadhimin Medical City from March 2020 to September 2021 for a penetrating abdominal injury due to blast injury, bullet, shrapnel injury, and stab wounds. The study population with penetrating abdominal traumas and indicative abdominal signs was subjected to exploratory laparotomy. Results: In this study, 465 (88.9%) males and 58 (11.1%) females participated;the highest rate was found in small bowel injuries (40.73%) followed by large bowel injuries (21.99%), whereas the lowest rate was found in gallbladder injury (1.34%). Chest injuries represent the highest rate among extra-abdominal injuries (18.36%), whereas head and neck represent the lowest rate (1.34%). Regarding the risk factors affecting the mortality rate, the highest rate of mortality was found in the case of gunshot (13.11%), followed by shrapnel (6.38%) and stab wound injuries (5.26%), which was the lowest. Conclusion: Penetrating abdominal injuries were the most common among males, small bowel injuries are the commonest organs affected by the penetrating abdominal injuries, shrapnel injuries were the commonest causes in our country, and the highest mortality rate was related to gunshot and number of organs affected and delay of arrival to the hospital and number of pints of blood received.

Pyro ban on New Year's Eve 2020/2021 - Analysis of firework-related injuries and their treatments

The majority of firework-related injuries in Germany are found at the turn of the year. With regard to hearing, a distinction is made between blast (BT) and explosion trauma (ET). The study examines the prevalence and characteristics of firework-related injuries over the past 11 years on New Year's Eve and compares these with the effects of the pyro ban 2020/21 imposed due to the COVID-19 pandemic. A retrospective chart review of all patients who presented themselves with the diagnosis blast trauma (H 83.3) or explosion trauma (T 70.8) at the Charité emergency service in the last 11 years from December 28 to January 5 was performed. 267 patients were recorded (78 % male). 1/3 each were assigned to the age group 10-19 and 20-29 years. 21 % of the patients were admitted to the hospital. There was an isolated BT of the ear in 66 %, hand injuries in 12 %, head injuries in 8 % and eye injuries in 4 %. 87 % had ear involvement with hearing loss: 83 % with tinnitus, 5.6 % with ET. The tone audiograms of BT and ET show differences only at 6 kHz, but not at 4 kHz. 8.6 % of the patients underwent surgical interventions. The treatment of a tympanic membrane perforation was carried out by: 54 % splinting vs. 38 % tympanoplasty. Therapy with a glucocorticoid was administered i.v. in 48 % and initiated orally in 17 %. Overall, there was a decrease in injuries of almost 90 % in 2020/21 compared to 2017/18. The use of fireworks leads to increased utilization of health care resources. The ban on the sale of pyrotechnics as well as the introduction of pyro ban zones in 2020 led to a relevant decrease in injuries. 2020 was the only year in which there were no injuries in children / adolescents. The BT of the ear is the most common firework-related injury.