Surgical characteristics of appendectomy in the eastern region of the democratic republic of congo: a cross-sectional study.

Appendectomy is a surgical procedure performed on a patient with acute appendicitis and is often performed by surgery and performed in an emergency. The authors have carried out this study, which aims to describe the surgical characteristics of appendectomies. Methods: This retrospective, descriptive, and documentary cross-sectional study was conducted from October 2021 to October 2022. Within this time ~591 acute abdominal surgical procedures were performed, including 196 appendectomies performed in the general surgery department. Results: This study focused on 196 appendectomies performed out of a total of 591 surgeries performed, with an incidence of 34.2%. 51 cases (26%) for the age group between 15 and 20 years, 129 cases (65.8%) of women participated in the appendectomy. 133 (67.8%) acute appendicitis, 48 (24.5%) appendicular abscess and 15 (7.7%) appendicular peritonitis were indications for appendectomies. For the American Society of Anesthesiologists (ASA) score: for the ASA I, 112 (57.1%) of the patients had no conditions other than those requiring surgery (appendectomy). For the Altemeier classification, the authors recorded 133 (67.9%) own surgeries. 56 (28.6%) surgical site infections followed by 39 (19.8%) inflammation (swelling and redness), 37 (18.8%) pain, 24 (12.4%) purulent peritonitis, 21 (10, 7%) postoperative hemorrhage and 19 (9.7%) paralytic ileus and 157 (80.1%) patients benefited from medical treatment. Conclusion: The low incidence of complications related to laparotomy appendectomy has been reduced to a minimum thanks to the respect of sanitary measures and the quality of the technique.

Measles outbreak in Ethiopia amid COVID-19: an effect of war-induced hampering of vaccination and pandemic.

Measles, a highly infectious viral disease, is a leading cause of death among young children in many developing countries, including Ethiopia. Despite Ethiopia being the first large country to conduct a mass immunization campaign for measles in 2020 following coronavirus disease 2019 (COVID-19) outbreak, in which over 14.5 million children in the country were vaccinated, there was another outbreak of measles in the country in the year 2022, especially in the eastern parts of the country. According to the WHO, a total of 9850 measles cases were suspected, out of which 5806 cases were confirmed, with 56 deaths (CFR=0.6%) in Ethiopia from January to 30 September 2022. The total number of cases crossed 10 000 cases by the end of October 2022. Amid COVID-19 and war times in Ethiopia posed serious challenges for the under-5 children to get access to vaccination against measles. We, therefore, urge the Ethiopian government to reach an amicable and diplomatic agreement with the civilians causing internal and intraethnic wars in the country as soon as possible, as this would prevent further hampering of measles vaccination for the Ethiopian people, most especially the children.

Tortuous ulnar artery presenting as left distal forearm mass.

Knowledge of anatomic variation in vasculature is critical to safe medical intervention as conduits vary in morphology, architecture, and course. Tortuosity is a common anatomic variant in certain arterial beds; however, its prevalence in ulnar arteries is not well documented in the literature. Here we report two cases of tortuous ulnar arteries in patients being evaluated for upper extremity hemodialysis access.

Activation of the murine monocyte/macrophage cell line, J774A1 by poly(A).poly(U): I. Binding of poly(A).poly(U) and induction of oligo-2',5'-adenylate synthetase.

Binding and internalization of the synthetic double-stranded complex poly(A).poly(U) were studied on a murine monocyte/macrophage cell line J774A1. Poly(A).poly(U) increased in a dose-dependent fashion the oligo-2',5'-adenylate synthetase demonstrating that those cells were responsive to this agonist. Binding of [32P]poly(A).[32P]poly(U) to the cells reached an apparent kinetic equilibrium within 4 h and was saturable (apparent Kd = 9.99 +/- 0.09.10(-2) g/l and Bmax 13.3 +/- 5.3.10(-3) g/l per 10(6) cells) and temperature-dependent. The binding of poly(A).poly(U) was competitively inhibited by various polynucleotides but not by other structurally unrelated compounds. Analysis of cell-associated [32P]poly(A).[32P]poly(U) demonstrated a minimal degradation of this polyribonucleotide over a 4-h incubation period. Autoradiography of cells incubated with [3H]poly(A).[3H]poly(U) revealed that poly(A).poly(U) was internalized and migrated to cell nuclei. These results suggest that poly(A).poly(U) is internalized in J774A1 cells via an endocytotic process.

Pharmacologic modulation of picryl chloride-induced contact dermatitis in the mouse.

A biphasic response of ear swelling was observed 2 h and 24 h after application of the antigen to picryl chloride-sensitized Balb/c mice. A platelet-activating factor (PAF) antagonist, BN 52063, or the anti-inflammatory drug, betamethasone, applied topically or injected subcutaneously, inhibited in a dose-dependent fashion the antigen-induced increase in ear thickness observed after 24 h. In addition, BN 52063 and betamethasone presented a synergistic effect when administered in vivo simultaneously and subcutaneously. Indomethacin administered subcutaneously at the time of the antigen challenge significantly potentiated the early swelling phase and inhibited the late one. In contrast, the inhibitors of histamine and serotonin, ketotifen and methysergide, respectively, modulated mostly the early, and to a lower extent the late phase when administered at the time of antigen challenge. In contrast, none of these drugs inhibited the late phase reaction when administered 4 h after the antigen. A significant eosinophil and mononuclear-cell ear infiltrate was observed following topical application of the antigen, a phenomenon that was markedly reduced by either BN 52063 or betamethasone. These results demonstrate the effectiveness of PAF antagonists, either alone or in association with glucocorticosteroids, in experimental CD, the modulation of the infiltration of eosinophils and mononuclear cells possibly explaining part of the inhibitory action of these drugs.

Inhibition of platelet aggregation by manoalide: preliminary results.

Manoalide (MND), a sesterterpenoid first isolated from the marine sponge Luffariela variabilis and later synthesized by Japanese chemists, exhibits anti-inflammatory activity and directly inactivates bee and snake venom phospholipase A2. We investigated the effects of MND on platelet aggregation induced by PAF-acether, arachidonic acid (AA), ADP and thrombin. Rabbit platelet aggregation was inhibited by MND in a dose-dependent manner. MND also inhibited the aggregation induced by AA and ADP but not that induced by thrombin. Since this marine natural product is also a potent inhibitor of lipoxygenase in human polymorphonuclear neutrophils, MND appears to be a useful tool for determining the role of phospholipase A2 in biological processes.

Atrial natriuretic factor inhibits Ca(2+)-dependent K+ fluxes in cultured vascular smooth muscle cells.

The interaction of the synthetic fragment Arg101-Tyr126 of atrial natriuretic factor (ANF) with Ca(2+)-dependent K+ efflux was studied in the following six different cell models: cultured vascular smooth muscle cells from rat aorta; isolated rat glomeruli; human platelets; cultured endothelial cells from bovine aorta; peritoneal mouse macrophages; human red cells. In human red cells and mouse macrophages, the dose-response curves of K+ efflux as a function of Ca2+ ionophore, A23187, concentration were not modified by addition of ANF. In endothelial cells and platelets, ANF slightly inhibited Ca(2+)-dependent K+ efflux. In renal glomeruli, ANF inhibits about one-third of this flux and in vascular smooth muscle cells ANF induced a five- to tenfold increase in the EC50 of A23187 effect. In experiments performed at constant concentrations of A23187, the IC50 of ANF was approximately 10(-9) mol/l. Similar results were obtained in mouse macrophages with cyclic GMP (cGMP). Our results suggest that ANF is able to counterbalance an increase in cytosolic free Ca2+ content in vascular smooth muscle and some glomerular cells. This effect may result from the ability of this hormone to stimulate cGMP synthesis.

Composition and physical properties of lipids from plasma membranes of dog kidney.

Lipid composition, physical state of major phospholipid classes and transbilayer migration of phosphatidylcholine have been determined in plasma membranes of the dog kidney. The lipid composition of brush-border membranes markedly differs from that of antiluminal membranes with respect to: (a) the total phospholipid content; (b) the cholesterol to phospholipid ratio (C/P); (c) the distribution of the major phospholipid classes. Sphingomyelin present in large amounts in both luminal and antiluminal membranes extracts exhibits a transition of phase between 20 and 44 degrees C approximately. In the range of temperature studied (5-55 degrees C) no phase transitions were detected for the other phospholipid species. Our data suggest that: (1) at physiological temperature the higher C/P ratio of brush-border membranes is in large part responsible for their lower fluidity; (2) both the relatively low cholesterol and high sphingomyelin contents contribute to the thermotropic transitions observed in intact membranes. Finally transbilayer migration of phosphatidylcholine in brush-border membranes is a very slow process with a half time of 6.5 h at 37 degrees C which compares with that of other biological membranes.

Platelet taurine content in Friedreich's disease.

We have studied the concentrations of taurine and of 6 other amino acids in platelets from 12 patients with Friedreich's disease and 12 age sex-matched normal control subjects. No significant differences could be demonstrated between the two groups. The glycine/serine ratio was lower in all the patients but this change did not reach statistical significance. From these and other data, we conclude that the taurine retention deficit observed previously in Friedreich's disease cannot be the primary causal defect.

[Automated determination of serum BSP. Improvement of dialysis by sodium salicylate]. / Dosage automatisé de la BSP dans le sérum. Amélioration de la dialyse par le salicylate de sodium

Because of the great difficulty of BSP dialysis in automatized determinations in serum the authors investigated the effect of sodium salicylate. They proved its good performance with aqueous and proteic solutions of BSP. About 70 mul of patient sera is used to perform the analysis with Technicon Autoanalyser. Comparison of data from about 220 serum evaluated by their proposed method and manual technique are studied.