Articles

Introduction: Preeclampsia constitutes a public health problem in our region. According to the WHO, it is the third cause of maternal mortality after severe hemorrhages, infections and is responsible for morbidity and high fetal mortality. The aim of this study was to improve on the management of severe preeclampsia at the University Hospital Center of Mother and Child (UHCMC) in N’Djamena.Patients and method: It was a prospective and descriptive survey of 3 years duration, from January 01st, 2017 to December 31st, 2019. Included in our study were, all patients admitted for severe preeclampsia and agreed to participate in the study. Epidemiological, clinical, therapeutic and prognostic studies were conducted. The data collected was analyzed using SPSS 18.0 software.Results: During the study period, 13599 pregnant and parturients were admitted to the Gynecology-Obstetrics department of the UHCMC, among whom 406 cases of severe preeclampsia, with a frequency of 2.9%. The patients were young (23.2 years), married (96.3%), primipara (61.3%), referred (64.3%) without antenatal care in 47.9% of cases. Functional signs were dominated by headaches with 34.0% of cases. The proteinuria was ≥ 3 crosses in 83.7% of cases. Patients had received magnesium sulfate in 98.3%, the delivery mode was cesarean in 64.0% of cases. Principal morbidity was eclampsia (40.8%) and fetal was prematurity (36.4%). Maternal lethality was 11.1% and fetal mortality was 19.9% cases.Conclusion: Severe preeclampsia is frequent in the UHCMC in N’Djamena. It is responsible for high maternal and fetal mortality. The practice of quality antenatal care, could prevent the occurrence of complications and improve the maternal-fetal prognosis.

Introduction: Oxidative stress is a phenomenon induced by an imbalance between production and the biological system's ability to readily detoxify oxygen reactive species (ROS) in cells. It has been shown that grape juice can reduce oxidative stress due to the presence of polyphenols. The aim of this study was to evaluate the effect of fresh red grape juice and grape fermentative product on oxidative stress in human erythrocytes.Methods: 5 ml of blood from 125 healthy individuals as control group collected in EDTA containing tubes. To perform biochemical assays, erythrocytes were incubated at 37 ºC for different times including 4, 24, 48, and 72 hours in the presence or absence of grape juice and grape red wine in amounts of 5 ml. Results: Grape juice and grape red wine reduced lipid peroxidation and increase of thiol groups, and total antioxidant capacity after 24 hours of treatment (p < 0.05). Also, the activity of catalase enzyme was increased 4 and 24 hours after treatment with red wine and grape juice, respectively. Conclusion: Grape juice and grape fermentative product may improve the antioxidant power of erythrocytes. This may lead to reducing the risk of free-radical damage and chronic diseases. However, more research with a higher number of samples is necessary to confirm the antioxidant effect of grape juice and red wine on human erythrocytes.

In this article, we have made a theoretical research, at the limit of the scientific reflection, to respond to the following query: what is the origin of the time? To find the response to this question, we adopted an attractive method. First, we have considered the light physical characteristics (speed, energy...) as the invariants. On this basis, we characterized all other physical systems by referring to the light. By this scheme, we showed that the calculation of the absolute physical characteristics of any system comes compulsory by the light viewpoint. That method avoids the use of mathematical transformations like Lorentz transformation; which is used in relativity to make invariant the equations by the change of the system of reference. Second, we made other hypothesis to find a law characterizing the interactions between matter and antimatter. Third, we used these interactions to quantify the time. The central query of this research led us to the shape of the universe and its volume. Finally, we found that the universe is a conical shape.

Specific receptors for atrial natriuretic peptide (ANP) located in intra-ovarian tissues are suggested to be involved in ovarian functions such as oocyte maturation and follicle development. However, the characteristics and modulation of its receptor in relation to ovarian folliculogenesis are not well defined. This study examined the properties of ANP receptors in the ovary using quantitative receptor autoradiography. In the pig ovary, the highest binding sites for 125I-ANP(1-28) were localized in the granulosa cell layer of the follicles as well as cumulus oophorous. The binding sites for 125I-ANP(1-28) on theca layer of the ovarian follicles were mainly localized in the external layer, but none was observed in the internal layer. Specific binding of 125I-ANP(1-28) was not found clearly in atretic follicles. In the corpus luteum, the binding site was not observed. Analysis of the competitive inhibition of the binding of 125I-ANP(1-28) to the granulosa and theca externa layers in various preovulatory follicles by increasing concentrations of unlabeled ANP(1-28)was consistent with a single high affinity for 125I-ANP(1-28). The maximal binding capacities of 125I-ANP(1-28) in granulosa layer were significantly increased in proportion to the development of ovarian follicles. However, no significant difference of binding capacities of 125I-ANP(1-28) was observed in theca externa layer. The binding affinities of 125I-ANP(1-28) in granulosa and theca externa layers were not different from each other. Especially, the correlation between specific binding of 125I-ANP(1-28) and follicle diameter. A significant correlation was revealed between specific binding of 125I-ANP(1-28) and follicle diameter (R = 0.88, p < 0.0001) in granulosa layer, however, less relationship was detected in theca externa layer (R = 0.50, p < 0.0001). Therefore, these results indicate that the biological ANP receptors exist in granulosa and the theca externa layers of the pig ovary, and suggest that the ANP receptors in granulosa layer may be related to the regulatory function of the ovarian follicullogenesis including oocyte maturation.

Background: For the prevention of respiratory infection similar to the current pandemic COVID-19, face masks are considered an effective method. Coronavirus disease (COVID-19) is a highly transmittable virus that continues to disrupt livelihoods, particularly those of low-income segments of society, around the world has poor knowledge towards facemask at the same time has huge gape towards attitude which affects the behaviors. Therefore this study was aimed to assess knowledge, attitude, and practice towards facemask use amid the COVID-19 pandemic among public transport drivers in Debre-Tabor town, Ethiopia, 2021.Methods: A cross-sectional study was conducted among 407 public transport drivers in Debre-Tabor town from July to August 2021. The study participants were selected using a simple random sampling technique after proportionally allocating the sample size from the total number of public transport drivers, and finally, study subjects were elected continuously working in Debre- Tabor Town public transport drivers. The data were collected by trained data collectors using a structured questionnaire with face-to-face interview administered questioners and an on-the-spot observational checklist. The collected data were checked, coded, and entered into SPSS version 23, and for data cleaning and analysis.Result: A total of 407 drivers responded to the questionnaire with a response rate of 96.4% were participated in this study. The mean age was 32.75 years (range: 19-45 years). Among them majority was male 383(94.1%) and the majority of 177(43.5%) were Bajaj drives. Among the responders, 114(28%) used radio to gather information, and 41(10.1%) drivers where were caught by COVID-19, but, only 30(7.4%) were vaccinated COVID-19 vaccine. Knowledge, attitude and practices regarding facemask use among these drivers were 368(90.4% [95% CI: 87.7-93.1]). 163(40% [95% CI: 37.5% - 43.2%]), and 23 ((5.6%) [95% CI: 3.7% - 8.3%]) Regarding facemask use against COVID-19 infection respectivelyConclusion and recommendation: The current study was able to demonstrate 90.4% of drivers had good knowledge. Positive attitude and practice levels of face mask use among drivers were less than half of them or 40%, and 5.6% respectively. There is a high supply of Surgical Face masks but poor attitude and practice. Almost all of the participants don’t wear a face mask despite having good knowledge about the transmission routes of COVID-19. The government COVID-19 prevention task force or health sector should be continued their awareness creation to bring behavioral change for the implementation of the COVID-19 prevention method, especially facemask.

Intrasellar meningioma (IM) is a rare occurrence that is difficult to distinguish preoperatively from the most common non-functioning pituitary adenoma. Here we describe a case of psammomatous IM occurring in a 68-year-old woman, presented with visual defects. On magnetic resonance imaging (MRI) she was found to have an intrasellar mass with suprasellar extension that was approached with transsphenoidal surgery. Subtle radiological hints, namely dural tail sign, intralesional calcifications and a marked and homogenous early enhancement of IM on MRI after gadolinium administration, may aid clinicians in achieving an accurate pre-operative diagnosis and choosing the proper surgical approach. The clinical and neuroradiological features of IM described in the literature has been reviewed.

Air pollution exposure is among the most prevalent reasons for environmentally-induced oxidative stress and inflammation, both of which are implicated in the central nervous system (CNS) diseases. The CNS has emerged as an important target for adverse health effects of exposure to air pollutants, where it can cause neurological and neurodevelopmental disorders. Air pollution includes various components of gases, particulate matter (PM), ultrafine particulate (UFPs), metals, and organic compounds. An important source of PM and UFPM in the ambient air is associated with air pollution-related trafficking, and primarily diesel exhaust particles (DEPs). Controlled animal studies and epidemiological studies show that exposure to air pollution, and in particular urban air pollution or DEPs, may lead to neurotoxicity. In specific, exposure to air pollutants as an important factor may be in neurodevelopmental disorders (eg Autism) and neurological disorders (eg.., Alzheimer’s Disease (AD)). The most noticeable effects of exposure to air pollutants in animals and humans are oxidative stress and neurodegeneration. Studies in rats exposed to DEPs showed microglial activity, increased lipid peroxidation, and neuronal accumulation in various areas of the brain, especially the olfactory bulb (OB) and the hippocampus (HI). Disorders of adult neurogenesis were also found. In most cases, the effects of DEP are more pronounced in male mice, probably due to lower antioxidant capacity due to less expression of paraoxonase 2.

Aims: To examine patient satisfaction of an outpatient operative hysteroscopy performed by both doctors and nurse hysteroscopists. Secondly, compare satisfaction, complications, and failure rate of these procedures performed by doctors and nurse hysteroscopists.Methods: In this retrospective study, the charts of 80 women who attended the service over one year were examined. Women were included if either an endometrial polyp or submucosal leiomyoma required removal using an endoscopic morcellator. All women had signed a consent form for the procedure. Results: In total 67/80 (84%) patients were satisfied with the service. Nurse hysteroscopists completed most procedures 59/80 (74%). Satisfaction ratings were not recorded for 13/80 (16%) consultations, completed by doctors. There was no difference in satisfaction and complication rates between doctors and nurse hysteroscopists. A total of five patients required repeat endoscopic morcellation, three completed by doctors and two completed by nurse hysteroscopists. For this group, satisfaction and complication ratings did not change.Conclusion: High patient satisfaction and low complication rates were found. Nurse hysteroscopists performed more procedures, providing a safe and useful service. Few patients required repeat morcellation procedures.

Percutaneous tibial nerve stimulation (PTNS) is a non-invasive treatment for overactive bladder (OAB). PTNS involves peripheral neuromodulation that uses electrical stimulation to target the spinal cord roots, mainly S3, which controls bladder function. Neuromodulation is postulated to be the effect of cross-signaling between sympathetic and parasympathetic post ganglionic nerve terminals and synapses, causing alteration of nerve signals involved in the voiding reflex. de Groat, et al. described this neurophysiological process and the neural circuits involved in controlling the lower urinary tract [1]. Stimulation of peripheral nerves and subsequent “cross-talk” at the level of the postganglionic neuroeffector junctions can modulate transmission and facilitate detrusor inhibition [2].

Malignant pericardial effusion is a usual and crucial exacerbation in malignancies. In some cases, pericardial effusion may be the first manifestation of the disease. Neoplastic pericarditis is extremely rare in thyroid cancer. Hereby, we describe the case of a 54-year-old man submitted to the hospital for chest pain and dyspnea. Clinical and radiological examinations were suggestive of pericardial effusion and mediastinal lymphadenopathy. The patient underwent pericardial drainage and surgical biopsy of a paratracheal lymph node. Pericardial biopsies were also taken. Histology study was compatible with metastatic papillary thyroid carcinoma with “signet-ring” cell morphology. Extended study of thyroid gland and function was performed and he was referred to oncologists for further treatment. Clinical presentation and histology are discussed emphasizing the rare correlation between pericardial pathology and metastatic thyroid carcinomas as the first diagnosis. Histopathologic findings of “signet-ring” cell morphology are very challenging for a differential diagnosis between thyroid carcinoma and other metastatic adenocarcinomas.