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BACKGROUND: Among the patient population in Basrah, Iraq, prolactinoma is the most commonly found pituitary tumor. Impulse control disorders (ICDs) were reportedly associated with these patients being treated with cabergoline. This study aimed to assess the prevalence of ICDs in cabergoline-treated prolactinoma patients versus healthy, matched controls. METHODS: This cross-sectional case-control study was conducted at the Faiha Specialized Diabetes, Endocrine and Metabolism Center (FDEMC) in Basrah, southern Iraq, from January 2023 to May 2023. It included 30 cabergoline-treated prolactinoma patients and 30 healthy, matched controls. The questionnaire for ICDs in Parkinson's disease was used as a screening tool. Following this, positively screened patients were evaluated using validated criteria accordingly to diagnose impulse control disorders. RESULTS: The ICDs were diagnosed in nine (30%) cabergoline-treated prolactinoma patients versus two (6.7%) in control (p = 0.02). The most frequent ICD types were hypersexuality and binge eating, while no patient reported pathological gambling. Three patients reported multiple types of ICDs. The patients' sociodemographic characteristics, prolactinoma duration and size, and cabergoline dose did not correlate significantly with ICD diagnosis. CONCLUSIONS: Treatment with cabergoline is associated with the development of ICDs. Therefore, clinicians should be aware of this disabling side effect to ensure its early detection and treatment.
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Candida auris has drawn global attention due to its alarming multidrug resistance and the emergence of pan resistant strains. C. auris poses a significant risk in nosocomial candidemia especially among immunocompromised patients. C. auris showed unique virulence characteristics associated with cell wall including cell polymorphism, adaptation, endurance on inanimate surfaces, tolerance to external conditions, and immune evasion. Notably, it possesses a distinctive cell wall composition, with an outer mannan layer shielding the inner 1,3-ß glucan from immune recognition, thereby enabling immune evasion and drug resistance. This review aimed to comprehend the association between unique characteristics of C. auris's cell wall and virulence, resistance mechanisms, and immune evasion. This is particularly relevant since the fungal cell wall has no human homology, providing a potential therapeutic target. Understanding the complex interactions between the cell wall and the host immune system is essential for devising effective treatment strategies, such as the use of repurposed medications, novel therapeutic agents, and immunotherapy like monoclonal antibodies. This therapeutic targeting strategy of C. auris holds promise for effective eradication of this resilient pathogen.
Subject(s)
Antifungal Agents , Candida auris , Cell Wall , Immune Evasion , Humans , Virulence , Candida auris/pathogenicity , Antifungal Agents/therapeutic use , Antifungal Agents/pharmacology , Drug Resistance, Fungal , beta-Glucans/metabolism , Morphogenesis , Candidiasis/microbiology , Candidiasis/immunology , Candidiasis/drug therapy , AnimalsABSTRACT
Pancreatic ductal adenocarcinoma (PDAC) accounts for more than 90% of all pancreatic cancers and is the most fatal of all cancers. The treatment response from combination chemotherapies is far from satisfactory and surgery remains the mainstay of curative strategies. These challenges warrant identifying effective treatments for combating this deadly cancer. PDAC tumor progression is associated with the robust activation of the coagulation system. Notably, cancer-associated thrombosis (CAT) is a significant risk factor in PDAC. CAT is a concept whereby cancer cells promote thromboembolism, primarily venous thromboembolism (VTE). Of all cancer types, PDAC is associated with the highest risk of developing VTE. Hypoxia in a PDAC tumor microenvironment also elevates thrombotic risk. Direct oral anticoagulants (DOACs) or low-molecular-weight heparin (LMWH) are used only as thromboprophylaxis in PDAC. However, a precision medicine approach is recommended to determine the precise dose and duration of thromboprophylaxis in clinical setting.
Subject(s)
Pancreatic Neoplasms , Venous Thromboembolism , Humans , Venous Thromboembolism/etiology , Venous Thromboembolism/prevention & control , Pancreatic Neoplasms/pathology , Carcinoma, Pancreatic Ductal/pathology , Carcinoma, Pancreatic Ductal/drug therapy , Anticoagulants/therapeutic use , Risk Factors , Animals , Tumor MicroenvironmentABSTRACT
Sitophilus oryzae is a kind of stored grain pest. This is controlled by using natural pesticides, which are more reliable, cost-effective, biodegradable, and eco-friendly than synthetic pesticides. Several plants show different insecticidal activities against various pests on their different parts (leaves, seeds, etc.). In this study, methanolic extracts of Lantana camara (leaves), Carica papaya (seeds), Ricinus communis (leaves), Calotropis gigantea (flowers), and Gliciridia sepium (leaves) were used to identify the best insecticidal activity against the rice weevil by doing mortality tests for one week with four replications under laboratory conditions. Gliciridia sepium leaves showed the highest insecticidal activity (100 ± 0) after seven days, and its extract was fractionated by using column chromatography and yielded 12 fractions. A contact bioassay of each fraction was performed, and fraction-11 showed the highest insecticidal activity against Sitophilus oryzae with a 100 % mortality after four days. Fraction-11 was analyzed by using GC-MS and FT-IR. Results revealed that the major constituent identified in fraction-11 was 4-C-methyl-myo-inositol. Therefore, 4-C-methyl-myo-inositol acts as a natural insecticide against rice weevils.
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Joining the global demand for the discovery of potent NSAIDs with minimized ulcerogenic effect, new pyrazole clubbed thiazole derivatives 5a-o were designed and synthesized. The new derivatives were initially evaluated for their analgesic activity. Eight compounds 5a, 5c, 5d, 5e, 5f, 5h, 5m, and 5o showed higher activity than Indomethacin (potency = 105-130 % vs. 100 %). Subsequently, they were picked for further evaluation of their anti-inflammatory activity, ulcerogenic liability as well as toxicological studies. Derivatives 5h and 5m showed a potential % edema inhibition after 3 h (79.39 % and 72.12 %, respectively), with a promising safety profile and low ulcer indices (3.80 and 3.20, respectively). The two compounds 5h and 5m were subjected to in vitro COX-1 and COX-2 inhibition assay. The candidate 5h showed nearly equipotent COX-1 inhibition (IC50 = 38.76 nM) compared to the non-selective reference drug Indomethacin (IC50 = 35.72 nM). Compound 5m expressed significant inhibitory activities and a higher COX-2 selectivity index (IC50 = 87.74 nM, SI = 2.05) in comparison with Indomethacin (SI = 0.52), with less selectivity than Celecoxib (SI = 8.31). Simulation docking studies were carried out to gain insights into the binding interaction of compounds 5h and 5m in the vicinity of COX-1 and COX-2 enzymes that illustrated the importance of pyrazole clubbed thiazole core in hydrogen bonding interactions. The thiazole motif of compounds 5h and 5m exhibited a well orientation toward COX-1 Arg120 key residue by hydrogen bonding interactions. Compound 5h revealed an additional arene-cation interaction with Arg120 that could rationalize its superior COX-1 inhibitory activity. Compounds 5h and 5m overlaid the co-crystallized ligand Celecoxib I differently in the active site of COX-2. Compound 5m showed an enhanced accommodation with binding energy of - 6.13 vs. - 1.70 kcal/mol of compounds 5h. The naphthalene ring of compound 5m adopted the Celecoxib I benzene sulfonamide region that is stabilized by hydrogen-arene interactions with the hydrophobic sidechains of the key residues Ser339 and Phe504. Further, the core structure of compound 5m, pyrazole clubbed thiazole, revealed deeper hydrophobic interactions with Ala513, Leu517 and Val509 residues. Finally, a sensitive and accurate UPLC-MS/MS method was developed for the simultaneous estimation of some selected promising pyrazole derivatives in rat plasma. Accordingly, compounds 5h and 5m were suggested to be promising potent analgesic and anti-inflammatory agents with improved safety profiles and a novel COX isozyme modulation activity.
Subject(s)
Analgesics , Anti-Inflammatory Agents, Non-Steroidal , Cyclooxygenase 2 , Edema , Molecular Docking Simulation , Thiazoles , Animals , Male , Mice , Rats , Analgesics/pharmacology , Analgesics/chemistry , Analgesics/chemical synthesis , Anti-Inflammatory Agents, Non-Steroidal/pharmacology , Anti-Inflammatory Agents, Non-Steroidal/chemistry , Anti-Inflammatory Agents, Non-Steroidal/chemical synthesis , Cyclooxygenase 1/metabolism , Cyclooxygenase 2/metabolism , Cyclooxygenase Inhibitors/pharmacology , Cyclooxygenase Inhibitors/chemistry , Cyclooxygenase Inhibitors/chemical synthesis , Dose-Response Relationship, Drug , Drug Discovery , Edema/drug therapy , Edema/chemically induced , Molecular Structure , Pyrazoles/chemistry , Pyrazoles/pharmacology , Pyrazoles/chemical synthesis , Structure-Activity Relationship , Thiazoles/chemistry , Thiazoles/pharmacology , Thiazoles/chemical synthesisABSTRACT
The performance of apparently biocompatible implanted bovine bone grafts may be compromised by unresolved chronic inflammation, and poor graft incorporation leading to implant failure. Monitoring the intensity and duration of the inflammatory response caused by implanted bone grafts is crucial. In this study, the ability of demineralized (DMB) and decellularized (DCC) bovine bone substitutes in initiating inflammatory responses to peripheral blood monocyte-derived macrophages (PBMMs) was investigated. The response of PBMMs to bone substitutes was evaluated by using both direct and indirect cell culture, reactive oxygen species (ROS) generation, apoptosis, immunophenotyping, and cytokine production. Analysis of DMB and DCC substitutes using scanning electron microscope (SEM) showed a roughened surface with a size ranging between 500 and 750 µm. PBMMs treated with DMB demonstrated cell aggregation and clumping mimicking lipopolysaccharide (LPS) treated PBMMs and a higher proliferation ability (166.93%) compared to control (100%) and DCC treatments (115.64%; p<0.001) at 24h. This was associated with a significantly increased production of intracellular ROS in PBMMs exposed to DMB substitutes than control (3158.5 vs 1715.5; p<0.001) and DCC treatment (2117.5). The bone substitute exposure also caused an increase in percentage apoptosis which was significantly (p<0.0001) higher in both DMB (27.85) and DCC (29.2) treatment than control (19.383). A significant increase in proinflammatory cytokine expression (TNF-α: 3.4 folds; p<0.05) was observed in DMB substitute-treated PBMMs compared to control. Notably, IL-1ß mRNA was significantly higher in DMB (21.75 folds; p<0.0001) than control and DCC (5.01 folds). In contrast, DCC substitutes exhibited immunoregulatory effects on PBMMs, as indicated by the expression for CD86, CD206, and HLDR surface markers mimicking IL-4 treatments. In conclusion, DMB excites a higher immunological response compared to DCC suggesting decellularization process of tissues dampen down inflammatory reactions when exposed to PBMM.
Subject(s)
Bone Substitutes , Humans , Animals , Cattle , Reactive Oxygen Species/metabolism , Macrophages/metabolism , Cytokines/metabolism , Inflammation/metabolism , Interleukin-1beta/metabolismABSTRACT
Background: Sodium hypochlorite serves as the most efficient root canal irrigating fluid. Objectives: This study's goal was to assess the replenished NaOCl's capacity to dissolve the tissue of pulp when combined with 9% tetrasodic etidronate (Na4HEBP), 18% tetrasodic etidronate (Na4HEBP), and 17% disodic ethylenediaminetetraacetate (Na2EDTA) under continuous controlled administration. Materials and Methods: Hundred and twenty complete undamaged teeth of the anterior mandible extracted due to periodontal problems within forty-eight hours were taken as a source of the pulp tissue. Results: It was found that there was a decrease in the weight of pulp tissue in all groups except negative control. Conclusion: NaOCl's potential to dissolve tissue with chelating agents like EDTA and HEBP inside the root canal was unaffected when there was controlled administration of EDTA and HEBP.
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OBJECTIVES: Electronic Nicotine Delivery System (ENDS) use and Waterpipe Tobacco Smoking (WTS) are reported to be a growing strain of tobacco epidemic among youth in the Arab world. Therefore, we aimed to: (1) estimate the regional prevalence of ENDS use among youth in 7 Arab countries and, (2) to explore the bidirectional relationship between ENDS use and WTS among Arab adolescents. METHODS: We analyzed data from the World Health Organization Global Youth Tobacco Survey (GYTS 2014-2018) of 18,536 schoolchildren aged 12-16 from Iraq, Mauritania, Morocco, Oman, Qatar, Tunisia, and Yemen. The weighted prevalence was calculated to generate nationally representative estimates. Adjusted multilevel logistic regression models were conducted to assess the association between ENDS use and WTS. RESULTS: The pooled weighted prevalence of ENDS use was 9.5%. Higher odds of ENDS use were significantly associated with WTS (AOR: 5.26, 95%CI: 4.28-6.46), smoking conventional cigarettes (AOR: 1.54, 95%CI: 1.23-1.94) and first tobacco use prior to the age of 12 (AOR: 1.40, 95%CI: 1.14-1.72). Females and children who were taught in school the dangers of tobacco had less odds of using ENDS. CONCLUSION: WTS was associated with increased odds of ENDS use by >5 folds, and vice versa. Tobacco consumption at age younger than 12 years was associated with higher odds of ENDS use, but less odds of WTS. Females and those who were taught in school the dangers of tobacco were less likely to report ENDS use.
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OBJECTIVES: High levels of caregiver burden (CB) are experienced by informal caregivers of pediatric patients with cancer. There is increasing evidence highlighting the extent of CB across sub-Saharan African countries, although there remains lack of interventions that target improvements in their experience. This study aimed to determine the impact of a structured psychoeducation program on caregivers' outcomes relating to preparedness to provide care, burden of caregiving, and quality of life (QoL). METHODS: This quasi-experimental (pre-and-posttest) design, involved family caregivers of children on admission for cancer treatment in 4 Nigerian tertiary hospitals. Eligible participants received 2 structured, psychoeducational training sessions delivered by a multidisciplinary oncology team, focusing on the management of patients' condition, spiritual care, self-care, and support. RESULTS: Subjects were mainly female (79.5%) and mostly mothers to children undergoing cancer treatment (74.7%). Commonest cancer type was acute lymphoblastic leukemia (23.9%) with evidence of metastatic disease found in 9.6% of children. Significant improvements were observed between pre- and posttest for unmet needs (z = -9.3; p < 0.001), preparedness for caregiving in palliative care (PCPC) (z = -7.0; p < 0.001), and overall QoL (z = -7.3; p < 0.001). A significant reduction in CB was also reported (z = -8.7; p < 0.001). SIGNIFICANCE OF RESULTS: This psychoeducational intervention (PEI) resulted in significant improvements in unmet needs, CB and significant improvements in PCPC. However, a reduction in QoL of the family caregivers was also observed. Findings from this study should encourage the use of well-crafted PEIs, delivered within hospital settings to promote improvements in outcomes for informal caregivers of hospitalized children suffering from cancer, in an African context. Further intervention development is required to better understand intervention components influencing changes in outcomes, while exploring feasibility testing and adaptation to similar settings in Nigeria and within Africa.
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Based on the demonstrated clinical activity of immune-checkpoint blockade (ICB) in advanced dedifferentiated liposarcoma (DDLPS) and undifferentiated pleomorphic sarcoma (UPS), we conducted a randomized, non-comparative phase 2 trial ( NCT03307616 ) of neoadjuvant nivolumab or nivolumab/ipilimumab in patients with resectable retroperitoneal DDLPS (n = 17) and extremity/truncal UPS (+ concurrent nivolumab/radiation therapy; n = 10). The primary end point of pathologic response (percent hyalinization) was a median of 8.8% in DDLPS and 89% in UPS. Secondary end points were the changes in immune infiltrate, radiographic response, 12- and 24-month relapse-free survival and overall survival. Lower densities of regulatory T cells before treatment were associated with a major pathologic response (hyalinization > 30%). Tumor infiltration by B cells was increased following neoadjuvant treatment and was associated with overall survival in DDLPS. B cell infiltration was associated with higher densities of regulatory T cells before treatment, which was lost upon ICB treatment. Our data demonstrate that neoadjuvant ICB is associated with complex immune changes within the tumor microenvironment in DDLPS and UPS and that neoadjuvant ICB with concurrent radiotherapy has significant efficacy in UPS.
Subject(s)
Immune Checkpoint Inhibitors , Liposarcoma , Neoadjuvant Therapy , Retroperitoneal Neoplasms , Humans , Liposarcoma/drug therapy , Liposarcoma/immunology , Neoadjuvant Therapy/methods , Retroperitoneal Neoplasms/drug therapy , Retroperitoneal Neoplasms/immunology , Male , Female , Immune Checkpoint Inhibitors/therapeutic use , Middle Aged , Aged , T-Lymphocytes, Regulatory/immunology , T-Lymphocytes, Regulatory/drug effects , Adult , Sarcoma/therapy , Sarcoma/immunology , Sarcoma/drug therapy , Nivolumab/therapeutic use , B-Lymphocytes/immunology , B-Lymphocytes/drug effectsABSTRACT
BACKGROUND: Tissue factor (TF) activity is stringently regulated through processes termed encryption. Post-translational modification of TF and its interactions with various protein and lipid moieties allows for a multi-step de-encryption of TF and procoagulant activation. Membrane-associated guanylate kinase-with inverted configuration (MAGI) proteins are known to regulate the localisation and activity of a number of proteins including cell-surface receptors. METHODS: The interaction of TF with MAGI1 protein was examined as a means of regulating TF activity. MDA-MB-231 cell line was used which express TF and MAGI1, and respond well to protease activated receptor (PAR)2 activation. Proximity ligation assay (PLA), co-immunoprecipitation and pull-down experiments were used to examine the interaction of TF with MAGI1-3 proteins and to investigate the influence of PAR2 activation. Furthermore, by cloning and expressing the PDZ domains from MAGI1, the TF-binding domain was identified. The ability of the recombinant PDZ domains to act as competitors for MAGI1, allowing the induction of TF procoagulant and signalling activity was then examined. RESULTS: PLA and fluorescence microscopic analysis indicated that TF predominantly associates with MAGI1 and less with MAGI2 and MAGI3 proteins. The interaction of TF with MAGI1 was also demonstrated by both co-immunoprecipitation of TF with MAGI1, and co-immunoprecipitation of MAGI1 with TF. Moreover, activation of PAR2 resulted in reduction in the association of these two proteins. Pull-down assays using TF-cytoplasmic domain peptides indicated that the phosphorylation of Ser253 within TF prevents its association with MAGI1. Additionally, the five HA-tagged PDZ domains of MAGI1 were overexpressed separately, and the putative TF-binding domain was identified as PDZ1 domain. Expression of this PDZ domain in cells significantly augmented the TF activity measured both as thrombin-generation and also TF-mediated proliferative signalling. CONCLUSIONS: Our data indicate a stabilising interaction between TF and the PDZ-1 domain of MAGI1 and demonstrate that the activation of PAR2 disrupts this interaction. The release of TF from MAGI1 appears to be an initial step in TF de-encryption, associated with increased TF-mediated procoagulant and signalling activities. This mechanism is also likely to lead to further interactions and modifications leading to further enhancement of procoagulant activity, or the release of TF.
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OBJECTIVE: The purpose of this prospective clinical trial was to explore the dental and soft tissue changes accompanying the use of skeletally anchored nickel-titanium (NiTi) extrusion arch in the correction of anterior open bite (AOB). MATERIAL AND METHODS: Twenty female patients with a mean age of 16.5 ± 1.5 years and a mean dentoalveolar AOB of 2.38±0.7 mm participated in this study. All patients were treated with an maxillary 0.017×0.025-in NiTi extrusion arch, with the aid of miniscrews inserted between the maxillary second premolars and first molars bilaterally, to act as indirect anchorage. Three-dimensional digital models and lateral cephalometric radiographs were taken just before the insertion of the extrusion arch (T0) and after 10 months (T1). Paired-sample t-tests were used in analyzing the data, to evaluate the changes after treatment (T1-T0). A significance level of p < 0.05 was used. RESULTS: AOB was successfully closed in all patients, with a 4.35 ± 0.61 mm increase in the overbite. Maxillary incisors significantly extruded (2.52 ± 1.02 mm) and significantly reclined (5.78 ± 0.77°), with a resultant decrease in the overjet of 1.58 ± 0.5mm. A significant intrusion of maxillary first molars with no change in their inclination was observed. The upper lip showed a significant retraction tendency to the E-plane, and a significant increase in the nasolabial angle was observed. CONCLUSION: The skeletally anchored NiTi extrusion arch was an effective technique in treating AOB, with no adverse effects on the molars.
Subject(s)
Open Bite , Overbite , Humans , Female , Adolescent , Open Bite/diagnostic imaging , Open Bite/therapy , Prospective Studies , Cephalometry , Incisor , LipABSTRACT
OBJECTIVE: To assess the efficacy of newly designed butterfly splint with special technique for middle turbinate stabilization in preventing adhesion following bilateral endoscopic sinus surgery (ESS) for chronic rhinosinusitis with nasal polyps (CRSwNP). STUDY DESIGN: Prospective, double-blind, randomized controlled. SETTING: University hospitals. METHODS: Following ESS, in cases of traumatized and/or unstable middle turbinates, newly designed butterfly plastic splint was randomly inserted in the middle meatus of one nasal side, while no splint was inserted in the other (control). Patients were followed up on after 1 week, 1 month, and 6 months. Endoscopic examination and a visual analog scale were used to evaluate each side of the nasal cavity for adhesion, crusting, pus, pain, nasal obstruction, and nasal discharge. RESULTS: Thirty patients (60 nasal sides) were included. For all investigated parameters, there was no significant difference between the splinted and non-splinted sides at the first week visit. Adhesion was found significantly less in the splinted sides (3%) than the non-splinted sides (27%) after 1 month (P = 0.038). The adhesion rate in the splinted sides remained 3% at the 3 month follow-up visit, however, in the non-splinted sides, the rate increased up to 30% (P = 0.007). Throughout the follow-up visits, all other investigated parameters remained statistically insignificant between both sides. CONCLUSIONS: The newly designed butterfly plastic splints to avoid middle turbinate adhesion is safe and effective in both reducing middle meatal adhesion with low complication rate in CRSwNP patients undergoing ESS and middle turbinate stabilization in its intermediate position.
Subject(s)
Nasal Polyps , Rhinitis , Sinusitis , Humans , Chronic Disease , Endoscopy/methods , Nasal Polyps/surgery , Prospective Studies , Rhinitis/complications , Rhinitis/surgery , Sinusitis/complications , Sinusitis/surgery , Splints , Turbinates/surgery , Turbinates/pathologyABSTRACT
Objectives: The present study was carried out to investigate COVID-19 vaccination coverage among populations of internally displaced persons (IDPs), refugees, and host communities in northern Iraq and the related underlying factors. Methods: Through a cross-sectional study conducted in five governorates in April-May 2022, 4,564 individuals were surveyed. Data were collected through an adapted questionnaire designed to gather data on participants. Results: 4,564 subjects were included (59.55% were 19-45 years old; 54.51% male). 50.48% of the participants (51.49% of host communities, 48.83% of IDPs, and 45.87% of refugees) had been vaccinated with at least one dose of COVID-19 vaccine. 40.84% of participants (42.28% of host communities, 35.75% of IDPs, and 36.14% of refugees) had been vaccinated by two doses, and 1.56% (1.65% of host communities, 0.93% of IDPs, and 1.46% of refugees) were vaccinated with three doses. Conclusion: Sociodemographic factors including age, gender, education, occupation, and nationality could affect vaccination coverage. Moreover, higher acceptance rate of vaccination is associated with belief in vaccine safety and effectiveness and trust in the ability of the vaccine to prevent complications.
Subject(s)
COVID-19 Vaccines , COVID-19 , Humans , Male , Young Adult , Adult , Middle Aged , Female , Cross-Sectional Studies , Iraq/epidemiology , Population Groups , COVID-19/epidemiology , COVID-19/prevention & control , VaccinationABSTRACT
Cow milk protein intolerance is a common gastrointestinal condition in the first year of life. It is mainly manifested as gastrointestinal and dermatology symptoms. It rarely presents as a respiratory manifestation only without other accompanying symptoms. We report a case of a 5-month-old Syrian boy who presented with a history of recurrent acute bronchitis symptoms (cough, wheezing, tachypnea) for 3 months with no significant personal or family history. Hematological and radiographic investigations were normal. The diagnosis of cow milk intolerance was confirmed by clinical, endoscopically, and histological findings. The child was placed on amino acid hydrolysate milk with restricted cow products. The child improved significantly, and chest symptoms improved within a week of the treatment. Despite the rarity of cow milk intolerance in children with only respiratory symptoms, it should be kept in mind when the patient has recurrent pulmonary infections that are not improving on appropriate therapy.
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Natural products such as terpenoidal compounds have been extremely tested against pathogenic bacteria. Researches are frequently carried out to find out new natural, semisynthetic and synthetic antibacterial agents due to problems of resistance. Thymoquinone derivative was obtained in our previous study and the current research is a continuation. The antibacterial activity of a monoterpenoid; thymoquinone derivative, 5-isopropyl-2-methyloxepine-1-one (1) has been evaluated for the first time by following the Agar cup bioassay method employed. The bacterial strains used in this study were Escherichia coli and Bacillus subtilis. Compound 1 showed moderate activity against Gram-positive organism; B. subtilis and good activity against Gram-negative species; E. coli with zones of inhibition (ZOI) 10.0 ± 0.2 mm and 11.0 ± 0.2 mm against E. coli and B. subtilis, respectively, and in comparison with antibiotic, imipenem. The zones of inhibition were calculated as the mean of the triplicate. The antibacterial activity of thymoquinone derivative 1 could be explained by the presence of unsaturated lactone.
Subject(s)
Anti-Bacterial Agents , Escherichia coli , Anti-Bacterial Agents/pharmacology , Benzoquinones/pharmacology , Bacteria , Microbial Sensitivity TestsABSTRACT
Background: Multidisciplinary pre-surgical evaluation is vital for epilepsy surgery decision and outcomes. Resective epilepsy surgery with assisted monitoring is currently a standard treatment for focal drug resistant epilepsy (DRE). In resource-limited countries, lack of epilepsy surgery center is a huge challenge. We presented and illustrated how to create a multidisciplinary protocol with resource-limited settings in a developing country and epilepsy surgery outcome using brain mapping and monitoring techniques for ensuring satisfactory resection. Methods: We created multicentric incomplete but complementary units covering all epilepsy-related sub-specialties and covering a wide geographical area in our country. Then, we conducted a prospective and multicentric study with low resource settings on patients with focal DRE, who underwent resective epilepsy surgery and were followed up for at least 12 months and were evaluated for postoperative seizure outcome and complications if present. Preoperative comprehensive clinical, neurophysiological, neuropsychological, and radiological evaluations were performed by multidisciplinary epilepsy team. Intraoperative brain mapping including awake craniotomy and direct stimulation techniques, neurophysiological monitoring, and electrocorticography was carried out during surgical resection. Results: The study included 47 patients (18 females and 29 males) with mean age 20.4 ± 10.02 years. Twenty-two (46.8%) patients were temporal epilepsy while 25 (53.2%) were extra-temporal epilepsy. The epilepsy surgery outcome at the last follow up was Engel Class I (seizure free) in 35 (74.5%), Class II (almost seizure free) in 8 (17%), Class III (worthwhile improvement) in 3 (6.4%), and Class IV (no worthwhile improvement) in 1 patient (2.1%). Conclusion: With low resource settings and lack of single fully equipped epilepsy center, favorable outcomes after resective surgery in patients with focal DRE could be achieved using careful presurgical multidisciplinary selection, especially with using intraoperative brain mapping and electrocorticography techniques.
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Foreign body (FB) ingestion is a common emergency among the pediatric population. They usually pass spontaneously through the gastrointestinal (GI) tract. In rare cases, it may cause complications because of the impaction. That depends on the type of an FB, its location, the patient's age and the duration of impaction. Colonoscopy as management of FB ingestion in the ileocecal valve (IC) is rare in the medical literature review. Herein, we reported a case of an FB (thin needle-shaped FB 4 cm long) in the IC that was removed from the IC by colonoscopy. Although colonoscopic retrieval of impacted foreign bodies at the GI tract in children has been rarely reported in the literature review, it may be helpful in young children to avoid invasive surgical treatment.
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OBJECTIVES: The international league against epilepsy (ILAE) recommended the harmonized neuroimaging of epilepsy structural sequences (HARNESS-MRI) to improve the detection of epileptogenic lesions in patients with focal drug-resistant epilepsy (DRE). The application of this protocol is still limited in low-resource countries, mainly due to apparent high costs. We aimed to evaluate the cost-effectiveness of the HARNESS-MRI protocol in Egypt and highlighted our experience. METHODS: Patients diagnosed with focal DRE at Cairo University epilepsy clinic underwent both conventional MRI (c-MRI) and HARNESS-MRI. Electro-clinical data were collected and analyzed. After the radiologists' initial diagnosis, a multidisciplinary team re-evaluated the MRI. Lesion detection rate and cost for detecting an extra lesion by HARNESS-MRI protocol were calculated. RESULTS: The study included 230 patients with focal DRE (146, 62% males and 91, 38% females), with a mean age of 20.5 years. Epileptogenic lesions detected by c-MRI and HARNESS-MRI before and after the board meeting were 40, 106, and 131 lesions, respectively (P < 0.001). Sixty-nine percent of the lesions detected by HARNESS-MRI were missed on c-MRI; most commonly were mesial temporal sclerosis (MTS) and Malformations of cortical development (MCDs). Thirty-seven MTS and 32 MCDs were detected with HARNESS-MRI, compared to only 6 and 3, respectively, detected on c-MRI (P < 0.001). HARNESS-MR protocol is more cost-effective than c-MRI in detecting MRI lesions; it can save about 42$ for detecting an extra lesion in MRI. CONCLUSION: The HARNESS-MRI protocol was cost-effective and highly recommended even in limited-resource countries for patients with focal DRE.