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1.
Theriogenology ; 227: 9-20, 2024 Oct 01.
Article in English | MEDLINE | ID: mdl-38991434

ABSTRACT

Defining the optimal therapy for endometritis remains a significant challenge for clinicians. Given the public health threat posed by antibiotic resistance and the inconclusiveness of traditional therapies, regenerative medicine has been proposed as an alternative. The objective of this study was to conduct a comprehensive systematic review and meta-analysis, to investigate the efficacy of regenerative medicine products in the treatment of both post-breeding persistent and chronic degenerative endometritis (PBIE/CDE) in mares, following the PRISMA guidelines. This research could be a comprehensive scientific reference for determining appropriate treatments and clinical strategies. All studies exploring the use of regenerative medicine therapies (i.e., plasma products, autologous conditioned serum, mesenchymal stem cells MSCs, and MSC derivatives) in the treatment of PBIE/CDE were included, regardless of the specific protocol used, the evaluated outcomes, or the diagnostic method employed. Two authors independently gathered data and evaluated the risk of bias for each study. Treatment effects were assessed using risk ratios for dichotomous data, accompanied by 95 % confidence intervals. Data were aggregated utilizing the fixed-effects model. The quality of evidence for each outcome was evaluated using GRADE criteria. Eighteen studies were included in the systematic review, while fifteen trials were included in the meta-analysis. A sub-meta-analysis was conducted separately on platelet-derived products, as well as on MSCs and their derivatives. The results demonstrated an overall positive effect of regenerative therapies in treating PBIE/CDE, particularly those involving MSCs and their derivatives. The positive outcomes include an anti-inflammatory effect, characterized by reduced intrauterine fluid accumulation, neutrophils, and cytokine concentrations. Additionally, improvements in pregnancy, foaling, and embryo recovery rates have been observed in some cases. Despite the limited number of randomized controlled studies and the high variability among protocols, including the timing of treatment, type, and volume of products used, the use of regenerative products, especially MSCs and their derivatives, has promising results in terms of both efficacy and safety for treating PBIE/CDE in mares.


Subject(s)
Endometritis , Horse Diseases , Regenerative Medicine , Horses , Animals , Female , Endometritis/veterinary , Endometritis/therapy , Horse Diseases/therapy
2.
J Med Internet Res ; 26: e50049, 2024 06 10.
Article in English | MEDLINE | ID: mdl-38857066

ABSTRACT

BACKGROUND: It is necessary to harmonize and standardize data variables used in case report forms (CRFs) of clinical studies to facilitate the merging and sharing of the collected patient data across several clinical studies. This is particularly true for clinical studies that focus on infectious diseases. Public health may be highly dependent on the findings of such studies. Hence, there is an elevated urgency to generate meaningful, reliable insights, ideally based on a high sample number and quality data. The implementation of core data elements and the incorporation of interoperability standards can facilitate the creation of harmonized clinical data sets. OBJECTIVE: This study's objective was to compare, harmonize, and standardize variables focused on diagnostic tests used as part of CRFs in 6 international clinical studies of infectious diseases in order to, ultimately, then make available the panstudy common data elements (CDEs) for ongoing and future studies to foster interoperability and comparability of collected data across trials. METHODS: We reviewed and compared the metadata that comprised the CRFs used for data collection in and across all 6 infectious disease studies under consideration in order to identify CDEs. We examined the availability of international semantic standard codes within the Systemized Nomenclature of Medicine - Clinical Terms, the National Cancer Institute Thesaurus, and the Logical Observation Identifiers Names and Codes system for the unambiguous representation of diagnostic testing information that makes up the CDEs. We then proposed 2 data models that incorporate semantic and syntactic standards for the identified CDEs. RESULTS: Of 216 variables that were considered in the scope of the analysis, we identified 11 CDEs to describe diagnostic tests (in particular, serology and sequencing) for infectious diseases: viral lineage/clade; test date, type, performer, and manufacturer; target gene; quantitative and qualitative results; and specimen identifier, type, and collection date. CONCLUSIONS: The identification of CDEs for infectious diseases is the first step in facilitating the exchange and possible merging of a subset of data across clinical studies (and with that, large research projects) for possible shared analysis to increase the power of findings. The path to harmonization and standardization of clinical study data in the interest of interoperability can be paved in 2 ways. First, a map to standard terminologies ensures that each data element's (variable's) definition is unambiguous and that it has a single, unique interpretation across studies. Second, the exchange of these data is assisted by "wrapping" them in a standard exchange format, such as Fast Health care Interoperability Resources or the Clinical Data Interchange Standards Consortium's Clinical Data Acquisition Standards Harmonization Model.


Subject(s)
Communicable Diseases , Semantics , Humans , Communicable Diseases/diagnosis , Common Data Elements
3.
Int J Mol Sci ; 25(11)2024 May 28.
Article in English | MEDLINE | ID: mdl-38892048

ABSTRACT

The Roquin family is a recognized RNA-binding protein family that plays vital roles in regulating the expression of pro-inflammatory target gene mRNA during the immune process in mammals. However, the evolutionary status of the Roquin family across metazoans remains elusive, and limited studies are found in fish species. In this study, we discovered that the RC3H genes underwent a single round of gene duplication from a primitive ancestor during evolution from invertebrates to vertebrates. Furthermore, there were instances of species-specific gene loss events or teleost lineage-specific gene duplications throughout evolution. Domain/motif organization and selective pressure analysis revealed that Roquins exhibit high homology both within members of the family within the same species and across species. The three rc3h genes in zebrafish displayed similar expression patterns in early embryos and adult tissues, with rc3h1b showing the most prominent expression among them. Additionally, the promoter regions of the zebrafish rc3h genes contained numerous transcription factor binding sites similar to those of mammalian homologs. Moreover, the interaction protein network of Roquin and the potential binding motif in the 3'-UTR of putative target genes analysis both indicated that Roquins have the potential to degrade target mRNA through mechanisms similar to those of mammalian homologs. These findings shed light on the evolutionary history of Roquin among metazoans and hypothesized their role in the immune systems of zebrafish.


Subject(s)
Computational Biology , Evolution, Molecular , Phylogeny , Zebrafish , Animals , Zebrafish/genetics , Computational Biology/methods , Humans , RNA-Binding Proteins/genetics , RNA-Binding Proteins/metabolism , Immune System/metabolism , Zebrafish Proteins/genetics , Zebrafish Proteins/metabolism , Gene Duplication , Multigene Family , Promoter Regions, Genetic , Ubiquitin-Protein Ligases
4.
BMC Vet Res ; 20(1): 80, 2024 Mar 05.
Article in English | MEDLINE | ID: mdl-38443948

ABSTRACT

BACKGROUND: Feline calicivirus (FCV) infection causes severe upper respiratory disease in cats, but there are no effective vaccines available for preventing FCV infection. Subunit vaccines have the advantages of safety, low cost and excellent immunogenicity, but no FCV subunit vaccine is currently available. The CDE protein is the dominant neutralizing epitope region of the main antigenic structural protein of FCV, VP1. Therefore, this study evaluated the effectiveness of the CDE region as a truncated FCV VP1 protein in preventing FCV infection to provide a strategy for developing potential FCV subunit vaccines. RESULTS: Through the prediction of FCV VP1 epitopes, we found that the E region is the dominant neutralizing epitope region. By analysing the spatial structure of VP1 protein, 13 amino acid sites in the CD and E regions were found to form hydrogen bonding interactions. The results show the presence of these interaction forces supports the E region, helping improve the stability and expression level of the soluble E protein. Therefore, we selected the CDE protein as the immunogen for the immunization of felines. After immunization with the CDE protein, we found significant stimulation of IgG, IgA and neutralizing antibody production in serum and swab samples, and the cytokine TNF-α levels and the numbers of CD4+ T lymphocytes were increased. Moreover, a viral challenge trial indicated that the protection generated by the CDE subunit vaccine significantly reduced the incidence of disease in animals. CONCLUSIONS: For the first time, we studied the efficacy of the CDE protein, which is the dominant neutralizing epitope region of the FCV VP1 protein, in preventing FCV infection. We revealed that the CDE protein can significantly activate humoral, mucosal and cellular immunity, and the resulting protective effect can significantly reduce the incidence of animal disease. The CDE region of the FCV capsid is easy to produce and has high stability and excellent immunogenicity, which makes it a candidate for low-cost vaccines.


Subject(s)
Calicivirus, Feline , Animals , Cats , Vaccines, Subunit , Amino Acids , Cytokines , Epitopes
5.
Dent Med Probl ; 60(3): 427-435, 2023.
Article in English | MEDLINE | ID: mdl-37796048

ABSTRACT

BACKGROUND: The success of implant therapy depends on the proper evaluation of soft and hard tissues around implants, and the careful selection of biomaterials to manage the associated defects. To attain healthy peri-implant tissues, knowledge about evaluating and managing soft and hard tissues around dental implants is essential. OBJECTIVES: The aim of the present study was to assess the knowledge, awareness and attitudes regarding soft and hard tissue considerations for single implant sites among the registered dental implant practitioners. MATERIAL AND METHODS: The current survey was carried out among dental implant practitioners registered with the Indian Dental Association (IDA). A total of 49 specialists practicing implant dentistry for at least 1 year were included in the study. The survey was conducted using a census approach. A validated questionnaire was circulated digitally among the participants, with 3 rounds of follow-up. To fill in the questionnaire, the participants' consent was required. RESULTS: The study involved 14 general practitioners (GPs), 7 periodontists, 10 oral and maxillofacial surgeons (OMFSs), 13 prosthodontists, and 5 certified implantologists. The majority of the participants (93.9%) felt that the soft tissue biotype would influence the treatment outcome (p < 0.05). Most of them (91.8%) evaluated the width of hard tissue at the implant site before surgery (p > 0.05), but only 77.6% of the population evaluated the bone width while considering the future prosthesis (p > 0.05). Although all participants placed implants, only 46.9% performed soft tissue augmentation by themselves (p < 0.001), whereas in the case of hard tissue augmentation, the percentage was 65.3% (p < 0.001). CONCLUSIONS: The study identified various knowledge gaps among different practitioners with different educational background. The educational background seemed to have played a significant role in their attitude toward the evaluation and management of soft and hard tissues around dental implants.


Subject(s)
Dental Implants , Humans , Dental Implantation, Endosseous , Gingiva
6.
Eur Heart J Acute Cardiovasc Care ; 12(4): 224-231, 2023 Apr 17.
Article in English | MEDLINE | ID: mdl-36738291

ABSTRACT

AIMS: To examine the shot-term outcomes with catheter-directed thrombolysis (CDT) vs. catheter-directed embolectomy (CDE) for high-risk pulmonary embolism (PE). METHODS AND RESULTS: The Nationwide Readmissions Database was utilized to identify hospitalizations with high-risk PE undergoing CDE or CDT from 2016 to 2019. The main outcome was all-cause in-hospital mortality. Propensity score matching was used to compare the outcomes in both groups. Among 3216 high-risk PE hospitalizations undergoing catheter-directed interventions, 868 (27%) received CDE, 1864 (58%) received CDT, and 484 (15%) received both procedures. In the unadjusted analysis, the rate of all-cause in-hospital mortality was not different between CDE and CDT (39.6% vs. 34.2%, P = 0.07). After propensity score matching, there was no difference in the incidence of in-hospital mortality [adjusted odds ratio (aOR): 1.28, 95% confidence interval (CI): 0.95, 1.72, P = 0.10], intracranial haemorrhage (ICH) (adjusted OR 1.57, 95% CI: 0.75, 3.29, P = 0.23), or non-ICH bleeding (aOR: 1.17, 95% CI: 0.85, 1.62, P = 0.33). There were no differences in the length of stay, cost, and 30-day unplanned readmissions between both groups. CONCLUSION: In this contemporary observational analysis of patients admitted with high-risk PE undergoing CDT or CDE, the rates of in-hospital mortality, ICH, and non-ICH bleeding events were not different.


Subject(s)
Fibrinolytic Agents , Pulmonary Embolism , Humans , Catheters , Embolectomy , Fibrinolytic Agents/therapeutic use , Hemorrhage/chemically induced , Intracranial Hemorrhages/etiology , Pulmonary Embolism/surgery , Pulmonary Embolism/drug therapy , Retrospective Studies , Thrombolytic Therapy/methods , Treatment Outcome
7.
J Clin Transl Endocrinol ; 31: 100313, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36820203

ABSTRACT

Objectives: Type 1 diabetes (T1D) is highly prevalent in Somali immigrant children and hemoglobin A1c (HbA1c) levels are elevated in this population compared to non-Hispanic Whites. Current self-management diabetes education has not been tailored to this population. We aimed to improve delivery of T1D education to Somali immigrants by developing and testing a culturally-appropriate video-based curriculum. Methods: This cross-sectional study involved Somali youth ≤ 19 years with T1D followed at two pediatric tertiary centers in Minnesota. Ten Somali-language T1D education videos were developed (∼60 min for total program) based on core ADA curriculum and tailored to address cultural concerns and misconceptions. A diabetes knowledge questionnaire was administered to parents of all participants and to children aged ≥12 years. Pre- and post-educational session questionnaire mean scores were compared using a paired t-test to assess knowledge improvement immediately post-video education (primary endpoint) and retention at 3 months (secondary endpoint). HbA1c was measured pre- and 6 months post education (exploratory endpoint). Results: Twenty-two Somali parents of 22 children participated (mean age 12.3 ± 4 years; 36 % female), 12 children ≥12 years. Diabetes knowledge scores significantly improved immediately post-video education compared to baseline (p = 0.012). This improvement persisted 3 months later (p = 0.0008). There was no significant change in mean HbA1c from baseline at 6 months post education (9.0 ± 1.5 % vs 9.3 ± 1.9; p = 0.6). Conclusion: Culturally and linguistically tailoring diabetes education materials to African immigrants and delivering it audio-visually could improve effectiveness of diabetes education and increase knowledge and retention compared to simply translating standard diabetes education materials. The effect on HbA1c needs further study with a larger sample size.

8.
J Eval Clin Pract ; 29(4): 650-656, 2023 06.
Article in English | MEDLINE | ID: mdl-35604003

ABSTRACT

RATIONALE: Question Storming offers a method that enables one to hold the condition of uncertainty in reflection without the need for resolution. Global interdependencies and unprecedented access to information, social media and multiple forms of communications challenge our ability to see, understand and influence change effectively and efficiently. The tension and need to cope effectively with massive uncertainties cannot be resolved with current methods leading to a necessity for people to seek new ways to transform their understanding and explore new options for action. Problem-solving and facilitation of the past are not flexible or rapid enough to meet the current demands of decision making and action taking in the face of massive uncertainties. As a result, people face 'wicked unsolvable' issues in their personal and professional lives. AIMS AND OBJECTIVES: An international group of scholar-practitioners has adapted and tested an enquiry process. Question Storming-The Power of Questions is based on principles of complex adaptive systems, human systems dynamics, and self-organization. METHOD: A three-step method of inquiry and reflection opens new possibilities. RESULTS AND CONCLUSIONS: Question Storming has helped people see their wicked issues from new perspectives, understand them in useful ways and generate new options for action. This paper introduces Question Storming-the Power of Questions as a practical method for group inquiry in the presence of individual and group uncertainties/wicked issues. The Container, Difference, Exchange (CDE) model and Pattern Logic are presented to explain the paradigm-shifting dynamics experienced by participants, both individuals and members of the group. It concludes with emerging questions for future consideration. Question Storming generates a divergent problem space that decreases constraint and increases degrees of freedom to allow practical exploration of new and often surprising options for action.


Subject(s)
Communication , Problem Solving , Humans , Uncertainty
9.
Rom J Ophthalmol ; 66(3): 233-239, 2022.
Article in English | MEDLINE | ID: mdl-36349172

ABSTRACT

Objective: To compare ultrasonic energy delivered into the eye [cumulative dissipated energy, (CDE)] and frequencies of required auxiliary surgical methods during phacoemulsification surgery in eyes with and without corneal opacity. Methods: The study was designed as a retrospective comparative observational study. The study group [Corneal Opacity Group, (COG)] was comprised of 31 eyes of 31 cataract patients with corneal opacity. Only nebular and macular corneal opacities (according to slit-lamp based classification of Agrawal) were included in the study. The control group (CG) was comprised of 40 eyes of 40 cataract patients without corneal opacity. The CDE values were obtained using the Centurion system (Alcon, Fort Worth, TX) and the patients were followed-up postoperatively for a period of one month. Results: The mean age of the subjects was 71.46 ± 8.86 years (52-89) in COG and 66.12 ± 5.96 years (55-80) in CG (p >0.05). In COG, the most common etiologic factors were trauma, keratitis, and degenerative diseases. The mean CDE value was 15.16 ± 8.71 (2.20-42.65) in COG and 10.04 ± 6.28 (3.77-31.80) in CG and it was found as significantly higher in COG (p=0.003). Some auxiliary surgical methods including posterior synechiolysis and anterior capsule staining were more commonly performed in COG (p=0.044 and p=0.040, respectively). No intraoperative or postoperative complication was observed. Conclusion: More ultrasonic energy is delivered into the eye and more auxiliary surgical methods are needed in cataract patients with corneal opacity who underwent phacoemulsification. Abbreviations: CDE = Cumulative dissipated energy, COG = Corneal Opacity Group, CG = Control group, IOL = Intraocular lens, LOCS = Lens Opacities Classification System, BCVA = best-corrected visual acuity, SRK/T = Sanders, Retzlaff, and Kraff theoretical, OVD = ophthalmic viscosurgical device, SPSS = Statistical Package for the Social Sciences.


Subject(s)
Cataract , Corneal Opacity , Phacoemulsification , Humans , Middle Aged , Aged , Aged, 80 and over , Retrospective Studies , Visual Acuity , Phacoemulsification/methods , Cataract/complications , Corneal Opacity/diagnosis , Corneal Opacity/etiology , Corneal Opacity/surgery
10.
Arab J Chem ; 15(11): 104302, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36189434

ABSTRACT

Traditional Chinese medicine (TCM) is the key to unlock treasures of Chinese civilization. TCM and its compound play a beneficial role in medical activities to cure diseases, especially in major public health events such as novel coronavirus epidemics across the globe. The chemical composition in Chinese medicine formula is complex and diverse, but their effective substances resemble "mystery boxes". Revealing their active ingredients and their mechanisms of action has become focal point and difficulty of research for herbalists. Although the existing research methods are numerous and constantly updated iteratively, there is remain a lack of prospective reviews. Hence, this paper provides a comprehensive account of existing new approaches and technologies based on previous studies with an in vitro to in vivo perspective. In addition, the bottlenecks of studies on Chinese medicine formula effective substances are also revealed. Especially, we look ahead to new perspectives, technologies and applications for its future development. This work reviews based on new perspectives to open horizons for the future research. Consequently, herbal compounding pharmaceutical substances study should carry on the essence of TCM while pursuing innovations in the field.

11.
JACC Case Rep ; 4(6): 348-353, 2022 Mar 16.
Article in English | MEDLINE | ID: mdl-35495554

ABSTRACT

Percutaneous catheter-directed interventions for pulmonary embolism is a rapidly evolving field. We present the first case report of simultaneous intravascular ultrasound (IVUS) use during transcatheter pulmonary embolectomy. Real-time IVUS guidance offers the advantage of better clot visualization and precise suction catheter localization while minimizing contrast medium exposure and wire exchanges. (Level of Difficulty: Advanced.).

12.
JHEP Rep ; 4(4): 100416, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35243280

ABSTRACT

Hepatocellular carcinoma (HCC) is the predominant primary cancer arising from the liver and is one of the major causes of cancer-related mortality worldwide. The cellular origin of HCC has been a topic of great interest due to conflicting findings regarding whether it originates in hepatocytes, biliary cells, or facultative stem cells. These cell types all undergo changes during liver injury, and there is controversy about their contribution to regenerative responses in the liver. Most HCCs emerge in the setting of chronic liver injury from viral hepatitis, fatty liver disease, alcohol, and environmental exposures. The injuries are marked by liver parenchymal changes such as hepatocyte regenerative nodules, biliary duct cellular changes, expansion of myofibroblasts that cause fibrosis and cirrhosis, and inflammatory cell infiltration, all of which may contribute to carcinogenesis. Addressing the cellular origin of HCC is the key to identifying the earliest events that trigger it. Herein, we review data on the cells of origin in regenerating liver and HCC and the implications of these findings for prevention and treatment. We also review the origins of childhood liver cancer and other rare cancers of the liver.

13.
Vet Ophthalmol ; 25(5): 316-325, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35239249

ABSTRACT

OBJECTIVE: To determine the effect of cumulative dissipated energy (CDE) on complications and visual outcome following cataract surgery in dogs. ANIMALS STUDIED: Records of 182 canine eyes that had undergone cataract surgery. PROCEDURES: Retrospective medical record review was conducted on dogs that underwent unilateral or bilateral elective cataract surgery by a single surgeon. Preoperative variables such as age, cataract duration, and pre-existing conditions were recorded. Intraoperative variables such as intraocular lens (IOL) status, phacoemulsification time, average power, irrigation fluid volume, and CDE were recorded. Postoperative complications and visual status at last follow-up were compared to these variables. RESULTS: Eighty-six percent of dogs were visual in one or both eyes at last follow-up (LFU) examination. Median follow-up time was 186 days postoperatively. Eyes that developed glaucoma had a significantly greater mean CDE (77.73 ± 80.11) than eyes that did not develop glaucoma (49.21 ± 38.93). Eyes that remained visual at the LFU examination had a significantly lower mean CDE (48.31 ± 37.14) than eyes that were blind at LFU (82.05 ± 82.73). Significantly lower mean CDEs were found in diabetic eyes, younger eyes, early-operated eyes (<1 month duration), and eyes with preoperative lens-induced uveitis. CONCLUSIONS: Higher CDE may be associated with an increased risk of postoperative glaucoma and loss of vision in dogs. Cumulative dissipated energy may be a useful prognostic indicator for success of canine cataract surgery.


Subject(s)
Cataract Extraction , Cataract , Dog Diseases , Glaucoma , Phacoemulsification , Animals , Cataract/diagnosis , Cataract/veterinary , Cataract Extraction/adverse effects , Cataract Extraction/veterinary , Dog Diseases/etiology , Dog Diseases/surgery , Dogs , Glaucoma/complications , Glaucoma/surgery , Glaucoma/veterinary , Phacoemulsification/adverse effects , Phacoemulsification/veterinary , Postoperative Complications/etiology , Postoperative Complications/veterinary , Retrospective Studies , Treatment Outcome
14.
J Histochem Cytochem ; 70(5): 377-389, 2022 05.
Article in English | MEDLINE | ID: mdl-35272516

ABSTRACT

The liver has a unique ability to recover from injury unlike any other organ. A poorly understood aspect of liver regeneration is the role of hepatocellular polarization. Neighbor of Punc E11 (Nope) is an oncofetal stem/progenitor cell marker, which is expressed by depolarized adult hepatocytes after cholestatic liver injury and in hepatocellular carcinoma. Liver injury induced by a choline-deficient and ethionine-supplemented diet is reversible if followed by an additional dietary stop interval and enabled us to study the expression of Nope during the induction of chronic liver injury and during subsequent liver regeneration. We could show by quantitative RT-PCR, Western blotting, and immunohistochemistry that the expression of Nope is induced in depolarized adult hepatocytes during injury. However, after another 2 weeks of a normal diet, the polarization of hepatocytes was almost completely restored and the expression of Nope remained limited to bile ducts and oval cells. Using an inducible CK19-lineage tracing model, we could demonstrate that oval cell-mediated hepatocyte regeneration is rare and was preceded by repolarization of hepatocytes. In conclusion, polarization of hepatocytes is an important part of liver regeneration and precedes oval cell-mediated regeneration of the liver. This process can be visualized by a characteristic expression pattern of Nope.


Subject(s)
Hepatocytes , Liver Neoplasms , Animals , Diet , Disease Models, Animal , Hepatocytes/pathology , Immunoglobulins , Liver/pathology , Liver Neoplasms/metabolism , Mice , Nerve Tissue Proteins/metabolism , Stem Cells/metabolism
15.
Sci Total Environ ; 824: 153724, 2022 Jun 10.
Article in English | MEDLINE | ID: mdl-35157857

ABSTRACT

The migration of radionuclides is a critical threat to the soil and groundwater environment. This study investigates highly radiological toxic 239+240Pu in 647 surface soils and 66 soil cores in China. First, the spatial distributions of 239+240Pu activities and 240Pu/239Pu ratios are presented in Chinese surface soils. Second, four different types of vertical distribution of 239+240Pu, namely 45.4%, 40.9%, 9.1% and 4.5% of Chinese soil cores proportions are integrated using statistical analysis. Furthermore, different soil types are accompanied by different 239+240Pu vertical distributions, which relate closely to the 239+240Pu migration. Finally, based on the Convection Dispersion Equation (CDE) model, the present work find that the apparent convection velocities of 239+240Pu are ranging from 0.00032 ± 0.00031 cm a-1 to 0.473 ± 0.083 cm a-1. As shown by the four typical vertical activity distribution of 239+240Pu in soil cores, the deepened activity maximum value position of 239+240Pu implies a fast migration rate or apparent convection velocity. This study, for the first time, suggests a significant linear correlation (R2 = 0.847) between the depth of 239+240Pu maximum value (cm) and the apparent convection velocity (v, cm a-1). We hypothesize that v usually does not exceed 0.5 cm a-1 in the CDE model. A significant linear correlation is also identified between apparent dispersion coefficient (D, cm2 a-1) and v2 in Chinese soil cores from the CDE model. It will provide an important reference for harmful heavy metal migration research in the future.


Subject(s)
Plutonium , Radiation Monitoring , Radioactive Fallout , Soil Pollutants, Radioactive , China , Plutonium/analysis , Radioactive Fallout/analysis , Soil , Soil Pollutants, Radioactive/analysis
16.
J Environ Radioact ; 242: 106799, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34922129

ABSTRACT

The distribution and migration of artificial fallout radionuclides in natural soils has been profusely studied for assessing radioecological impacts and predicting their long-term behaviour, among other topics. Despite the standardized use of the analytical solutions of a simplified convection-diffusion equation (CDE), there are still some concerns and open questions. This work is aimed at contributing to the understanding of basic processes governing the distribution of fallout radionuclides in vegetated soils with rhizospheres. It studies 210Pb and 137Cs in soil cores and vegetal samples from Chréa National Park, in Algeria, along with other natural radionuclides and some major and trace elements. Results include surficial and depth distributions of radionuclide concentrations, and site and plant-specific concentration ratios (CR). Inventories of 137Cs (3620 ± 120 Bq m-2) and 210Pbexc (9000 ± 900 Bq m-2) in soils are typical from global fallout in high precipitation areas in the Northern Hemisphere. A simple model of a polyphasic soil, including rhizospheres, provides a realistic description in the studied case, where plant roots occupy about 45% of the volume in the 0-10 cm interval, with a high porosity around rhizomes. This composite soil matrix explains the different patterns observed in the depth distribution of the studied elements. The depth-distributions of 137Cs and 210Pbexc have been modelled with different approaches: i) analytical solution of the CDE with mean annual convection and large observation times; ii) as before, but with convection representing infiltration events and short observation times; iii) numerical modelling of the 137Cs profile in the mineral phase using CDE with fast initial distributions. The three approaches fit the empirical data, but they predict different time evolutions. The approach iii) provides a more realistic description. Results are questioning the common accepted analysis and its predictive use.


Subject(s)
Radiation Monitoring , Soil , Algeria , Parks, Recreational , Rhizosphere
17.
Article in English | MEDLINE | ID: mdl-36816155

ABSTRACT

On January 30, 2020, the COVID-19 epidemic was declared an international public health emergency by the World Health Organization. Given the growing impact of the pandemic, there is great interest in finding potential targets for treating infected or hospitalized COVID-19 patients. Therapeutic studies have been conducted on pre-existing drugs, which vary by country, including anti-malarial agents, antiviral agents, and convalescent plasma. However, many of these agents are ineffective at reducing mortality or only shorten the severity or duration of COVID-19 illness in hospitalized patients. As such, other alternatives for treating COVID-19 are being investigated. One such target of interest has been clathrin-dependent endocytosis (CDE). Clathrin-dependent endocytosis is the most commonly observed mechanism of viral entry into cells. However, there have been no published studies to date on CDE inhibition strategies against COVID-19. One such target is Rlip or RLIP76 (human gene RALBP1, 18p11.22). Among its many functions, Rlip is a stress-protective, Ral-regulated ATPase of the mercapturic acid pathway that transports glutathione-electrophile conjugates of electrophilic toxins, which are precursors of mercapturic acid that precedes de-glutamylation by gamma-glutamyl transferase. Rlip is also regulated by several G-proteins that coordinate movement of cells, organelles, membranes, cytoskeleton, macromolecules, and other small molecules. Previous studies have link Rlip in the pathogenesis of several viral illness. In this paper, we want to propose that RLIP76 (Rlip or RALBP1) may be a novel target for treating SARS-CoV-2 viral infections.

18.
J Clin Transl Sci ; 6(1): e142, 2022.
Article in English | MEDLINE | ID: mdl-36590348

ABSTRACT

Background: Coronavirus Disease 2019 (COVID-19) instigated a flurry of clinical research activity. The unprecedented pace with which trials were launched left an early void in data standardization, limiting the potential for subsequent data pooling. To facilitate data standardization across emerging studies, the National Heart, Lung, and Blood Institute (NHLBI) charged two groups with harmonizing data collection, and these groups collaborated to create a concise set of COVID-19 Common Data Elements (CDEs) for clinical research. Methods: Our iterative approach followed three guiding principles: 1) draw from existing multi-center COVID-19 clinical trials as precedents, 2) incorporate existing data elements and data standards whenever possible, and 3) alignment to data standards that facilitate data sharing and regulatory submission. We also supported rapid implementation of the CDEs in NHLBI-funded studies and iteratively refined the CDEs based on feedback from those study teams. Results: The NHLBI COVID-19 CDEs are publicly available and being used for current COVID-19 clinical trials. CDEs are organized into domains, and each data element is classified within a three-tiered prioritization system. The CDE manual is hosted publicly at https://nhlbi-connects.org/common_data_elements with an accompanying data dictionary and implementation guidance. Conclusions: The NHLBI COVID-19 CDEs are designed to aid data harmonization across studies to achieve the benefits of pooled analyses. We found that organizing CDE development around our three guiding principles focused our efforts and allowed us to adapt as COVID-19 knowledge advanced. As these CDEs continue to evolve, they could be generalized for use in other acute respiratory illnesses.

19.
Life Sci ; 290: 119818, 2022 Feb 01.
Article in English | MEDLINE | ID: mdl-34352259

ABSTRACT

AIMS: The Gulf War Illness programs (GWI) of the United States Department of Veteran Affairs and the Department of Defense Congressionally Directed Medical Research Program collaborated with experts to develop Common Data Elements (CDEs) to standardize and systematically collect, analyze, and share data across the (GWI) research community. MAIN METHODS: A collective working group of GWI advocates, Veterans, clinicians, and researchers convened to provide consensus on instruments, case report forms, and guidelines for GWI research. A similar initiative, supported by the National Institute of Neurologic Disorders and Stroke (NINDS) was completed for a comparative illness, Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), and provided the foundation for this undertaking. The GWI working group divided into two sub-groups (symptoms and systems assessment). Both groups reviewed the applicability of instruments and forms recommended by the NINDS ME/CFS CDE to GWI research within specific domains and selected assessments of deployment exposures. The GWI CDE recommendations were finalized in March 2018 after soliciting public comments. KEY FINDINGS: GWI CDE recommendations are organized in 12 domains that include instruments, case report forms, and guidelines. Recommendations were categorized as core (essential), supplemental-highly recommended (essential for specified conditions, study types, or designs), supplemental (commonly collected, but not required), and exploratory (reasonable to use, but require further validation). Recommendations will continually be updated as GWI research progresses. SIGNIFICANCE: The GWI CDEs reflect the consensus recommendations of GWI research community stakeholders and will allow studies to standardize data collection, enhance data quality, and facilitate data sharing.


Subject(s)
Common Data Elements/standards , Persian Gulf Syndrome , Biomedical Research , Humans , Information Dissemination , National Institute of Neurological Disorders and Stroke (U.S.) , Persian Gulf Syndrome/etiology , United States , United States Department of Veterans Affairs , Veterans Health
20.
Lasers Med Sci ; 37(2): 843-848, 2022 Mar.
Article in English | MEDLINE | ID: mdl-33876322

ABSTRACT

The purpose of the study is to compare the total ultrasound power used between eyes undergoing different lens fragmentation patterns of femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification surgery (CPS). A total of 506 patient eyes underwent preoperative grading of lens opacity using the Lens Opacity Classification System III (LOCSIII). The eyes were divided into two subgroups: subgroup 1 had a LOCSIII grade of 1-3, and subgroup 2 had a LOCSIII grade of 4-6. The eyes underwent FLACS (LenSx) for clear corneal wound, capsulotomy, and lens fragmentation. Either a grid pattern or radial pattern was used for lens fragmentation. The eyes received one of the following three treatments: (1) CPS without femtosecond laser assistant, (2) FLACS with a grid pattern (FGP) lens fragment, or (3) FLACS with a quadrant pattern (FQP) lens fragment. The mean cumulative dispersed energy (CDE) for each subgroup and treatment was evaluated. The mean CDE was lower in the two FLACS groups (1.21±1.91 in FGP and 1.22±1.92 in FQP) than that in the CPG group (2.67±2.84). In subgroup 1, CDE was higher in the CPG group (1.54±1.18) as compared with the FLACS groups (0.16±0.31 in FGP and 0.74±1.17 in FQP; P<0.001). In subgroup 2, CDE was higher in the CPG (6.47±3.46) as compared with the FLACS groups (2.74±2.21 in FGP and 5.34±2.17 in FQP; P<0.001). CDE was lower in the two FLACS groups than that in the CPS group, and CDE was the lowest with FGP in both subgroups 1 and 2.


Subject(s)
Cataract , Laser Therapy , Phacoemulsification , Humans , Lasers , Prospective Studies , Visual Acuity
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