Jessica Rontard, Benoît GC Maisonneuve* and Thibault Honegger
Published on: 13th April, 2023
There is an urgent need for predictive preclinical models to enhance the success rate of clinical trial outcomes. One of the main reasons for drug attrition is the lack of translational models, methods using human cells are particularly in the spotlight of regulatory bodies as they offer an alternative to in vivo studies and have the potential to improve the translational of preclinical trials. Organs-on-Chips (OoCs) are sensible candidates to reduce the cost and the ethical burden of animal models while accelerating and de-risking drug development. The innovation of such systems is based on both the increased relevance of the cells used and the ability to build precise, yet physiologically relevant, complex architectures. The use of microfluidic technologies with human induced pluripotent stem cells (hiPSCs) opens new routes to create relevant in vitro approaches as they will soon be able to reproduce clinical characteristics of donors or specific populations. The adoption of OoC models by pharmaceutical industries, and in fine by regulatory agencies, still requires: (i) establishing standardized, reproducible, robust, and replicable cell culture protocols with specific validation and characterization criteria, (ii) evidence that the technology predicts human responses, thus allowing to contribute efficiently and reliably to clinical trials success of novel therapeutics, and (iii) evidence that the models refine and reduce animal testing without compromising with the quality and the pertinence of the data generated.
Georgina George Balyorugulu*, Shabani Yusuph, Rahma Majaliwa, Mpuya Innocent, Fikiri Martine, Fatma Said, Rogatus Kabyemera, Patrick Ngoya and Jeremiah Seni
Published on: 2nd May, 2024
Septic arthritis is a serious inflammatory infectious state of the joint secondary to microbial infection. In the pediatric population the most common route of infection is haematogenous spread. Less than fifty percent of patients with septic arthritis will yield positive culture results with a mortality rate of up to 42% in some cases. Due to the challenge in obtaining culture and identification of the causative organism the management of septic arthritis has been more of empirical in nature with the chosen antibiotic synchronized with the epidemiological data. Here is a case of a 14 months old female patient presenting at our hospital with a left knee and lower thigh swelling for three days with failure to bare weight on the limb. In addition, she had fever and diarrhea for three days. Upon evaluation clinical, laboratory and radiological findings supported septic arthritis expect for her blood, pus and synovial fluid culture of which all came back negative. She had poor response to intravenous ceftriaxone, gentamycin, metronidazole, ampicillin- cloxacillin and amoxicillin clavunate. Over the course of therapy, she developed septic shock, severe anemia and acute liver failure and was admitted to the intensive care unit. Afterwards she was initiated vancomycin and developed a hypersensitivity reaction with generalized edema which prompted cessation of the drug. Due to her critical state and poor response a triple therapy regimen composing of meropenem, ciprofloxacin and metronidazole was selected and maintained for three weeks followed by an oral clindamycin course for another three weeks of which she responded. In addition, surgical debridement arthrotomy, irrigation and drainage were done. Physiotherapy for rehabilitation is ongoing with patient recovering well.
The fungal pathogen, Nothophaeocryptopus gaeumannii, occurs wherever Douglas-fir is found but disease damage is believed to be limited to the Coast Range and is of no concern outside the coastal fog zone (Shaw, et al., 2011). However, knowledge remains limited on the history and spatial distribution of Swiss Needle Cast (SNC) impacts in the Pacific Northwest (PNW). We reconstructed the history of SNC impacts on mature Douglas-fir trees based on tree ringwidth chronologies from the west slope of the Coast Range to the high Cascades of Oregon. Our findings show that SNC impacts on growth occur wherever Douglas-fir is found in western Oregon and is not limited to the coastal fog zone. The spatiotemporal patterns of growth impact from SNC disease were synchronous across the region, displayed periodicities of 25-30 years, strongly correlated with winter and summer temperatures and summer precipitation, and matched the patterns of enriched cellulosic stable carbon isotope indicative of physiological stress. While winter and summer temperature and summer precipitation influenced pathogen dynamics at all sites, the primary climatic factor of these three limiting factors varied spatially by location, topography, and elevation. In the 20th century, SNC impacts at low- to mid-elevations were least severe during the warm phase of the Pacific Decadal Oscillation (PDO, 1924-1945) and most severe in 1984-1986, following the cool phase of the PDO (1945-1977). At high elevations on the west slope of the Cascade Mountains, SNC impacts were the greatest in the 1990s and 2000s, a period of warmer winter temperatures associated with climate change. Warmer winters will likely continue to increase SNC severity at higher elevations, north along the coast from northern Oregon to British Columbia, and inland where low winter temperatures currently limit growth of the pathogen. Surprisingly, tree-ring records of ancient Douglas-fir logs dated ~53K radioactive years B.P. from Eddyville, OR displayed 7.5- and 20-year periodicities of low growth, similar to those found in modern day coastal Douglas-fir tree-ring records which we interpret as being due to cyclic fluctuations in SNC severity. Our findings indicate that SNC has persisted for as long as its host, and as a result of changing climate, may become a significant forest health problem in areas of the PNW beyond the coastal fog zone.
This study investigates into the historical evolution and contemporary applications of Computed Tomography (CT) in renal stone estimation, with a focus on the innovative use of CT to quantify renallcalculiistrain for estimating potentiallsymptomatic incidents.Historically, CT has played a pivotal role in diagnosing renal calculi, offering unparalleled sensitivity and specificity in detecting stones of varying composition and size. However, the clinical significance of renal calculi extends beyond mere detection, prompting researchers to explore novel approaches to predict symptomatic events associated with stone disease. This research aimed to determine the right way to classify asymptomatic radiographic calculi strain on computed tomography (CT) scans in Al-Hussein Teaching Hospital, Al-Muthanna, Iraq. A survey was made available to calculi formers who had a CT scan during asymptomatic after a calculi clinical assessment. A survey and a study of medical records revealed symptomatic calculi route incidents after a CT scan. The amount of calculus, the biggest calculi thickness, electronic total calculi size (TSV), and two-pronged calculus were measured radiographically and linked as predictors of calculi events. There were 55 calculi formers in the study, and 61% had a calculi event one year after the CT scan. The calculus number was (0–1, 2–3, 4–6, 7), the highest calculi diameter was (0–2, 3–4, 5–7, 8 mm), and 48% had bilateral calculus. The number of calculus per quartile had a danger ratio of 1.30 (p = 0.001), the largest calculi diameter had a hazard ratio of 1.26 (p 0.001), TSV had a hazard ratio of 1.38 (p = 0.001), and bilateral calculus had a hazard ratio of 1.80 (p = 0.001). Only TSV wass an unbiased measure offsymptomaticceventssin multivariable regression (HR = 1.35 per quartile, p = 0.01). TSV-related incidents were also unaffected by demographics, urinary chemistry, or calculi composition. A drastic rise in TSV between CT scans (> 31 mm3/year) expected additional eventssin the 49 patients with interim events (HR = 2.8, p = 0.05). For calculating calculi pressure on CT scan, automated TSV is more accurate for asymptomatic events than physical approaches.
Human osteosarcoma is the most common malignant bone tumor with an annual incidence of two cases per 1 million population. Osteosarcoma account for 60% of all malignant bone tumors occurring in childhood, followed by Ewing’s sarcoma [1-3]
Ashish Kumar Gupta*, Amit Choudhari, Abhishek Kumar and Anamika Gupta
Published on: 17th May, 2024
Additive manufacturing, commonly known as 3D printing, is revolutionizing the field of biomedical engineering by enabling the creation of custom implants tailored to individual patient anatomy. This technology uses digital design files to layer-by-layer build structures from various materials, including biocompatible metals, polymers, and ceramics. In medical applications, this precision allows for the creation of implants that closely match the contours and geometries of a patient’s unique anatomical features, offering improved fit, functionality, and comfort compared to traditional, mass-produced implants. The potential benefits extend beyond just enhanced patient outcomes. With additive manufacturing, healthcare providers can reduce surgical times by designing implants that require minimal intraoperative modification. Moreover, the flexibility of this technology facilitates rapid prototyping and iterative design, enabling healthcare professionals to collaborate with engineers in refining implant designs before they are used in surgery. This iterative approach is particularly useful in complex cases, such as craniofacial reconstruction, where conventional implants may not adequately address the intricacies of a patient’s skeletal structure.
Background: The Islamic religion has emphasized the importance of health and well-being, and Muslims have recognized the value of a good and healthy life based on Islamic recommendations. Health-oriented lifestyle is a multi-dimensional phenomenon that is the purpose of this study to investigate the Islamic lifestyle.
Methods: In this review study, we tried to explore practical strategies in Islam through access to credible sources in the form of a descriptive article on achieving a healthy lifestyle in nutrition. For this purpose, using keywords and electronic and manual searches in authentic Islamic and medical sources, information was searched and collected to answer the research question.
Results: Based on the results of the reviewed studies, the guidelines of Islamic religion and beliefs are mainly based on improving lifestyle factors and dietary habits. It has been emphasized that adherence to the Islamic dietary guidelines and lifestyle, may lead to less risk of diseases.
Conclusion: Given the availability of valuable nutritional resources and instructions in Islam to prevent and combat nutrition-related diseases, these theories can be applied and prevent from spreading and creating malnutrition-related diseases; the guidelines of Islam on healthy lifestyles in nutrition can be recommended to the world as a basic strategy
Food production program faces tight competition on land, water, energy, and efforts against the negative effects of food production on the environment [1,2].
Athanasios Garavelas, Efstathios Michalopoulos*, Panagiotis Mallis and Eros Nikitos
Published on: 13th December, 2023
Intraovarian injection of autologous Platelet Lysate (PL) can be considered a potential therapeutic strategy for ovarian function rejuvenation. Especially, in women diagnosed with Poor Ovarian Response (POR) or Primary Ovarian Insufficiency (POI), the exogenous administration of the autologous platelet-derived growth factors, influence positively the regulation of the serum Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH), and Anti-Mullerian Hormone (AMH) and Estradiol (E2). Therefore, the evaluation of the serum levels of the aforementioned hormones was performed on 10 participants with a mean age of 43 ± 4 years diagnosed with POR or POI, who received intraovarian PL injection monotherapy. The monitoring of the serum hormone levels was performed for 3 months. The results of this study clearly showed that all participants were characterized by elevated levels of FSH and LH and reduced levels of E2 and AMH, prior to the PL injection. However, the levels of all hormones started to change after the 1st month of follow-up monitoring. Moreover, 40% of the participants conceived successfully either by natural way or after in vitro Fertilization (IVF). Considering these, the intraovarian injection of autologous PL exhibited promising evidence regarding the altering of hormone levels at physiological values. Moreover, the contained PL growth factors were implicated in angiogenesis promotion and also in toleration of the inflammatory microenvironment, regulating positively ovarian function. In conclusion, the intraovarian autologous PL injection is considered a safe, effective, and tolerable therapeutic strategy in women with POR or POI. Moreover, the results of this study were very encouraging, especially for the women with infertility issues, who want their genetic offspring.
This paper is grounded in a series of medical texts that survive from ancient Mesopotamia. It seeks to show the relevance of these texts for the modern researcher. Key findings are that the ancient Mesopotamian physician had already discovered many of the herbal treatments currently being verified by modern science. Armed with what these ancient texts tell us, we are in a position to offer advice on ways to ensure the most effective use of and avoid the dangers presented by selected medicinal plants.
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