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1.
Cureus ; 16(7): e63556, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39087195

ABSTRACT

Background Organ donation is a community service that not only saves lives but also improves the quality of life. The major concerns causing organ shortage in the country are the lack of awareness and correct knowledge among the public and myths and misconceptions clouding organ donation because of religious and cultural barriers. Material and methods A cross-sectional study was conducted among 300 medical students of a private medical college in the Telangana region, India, from July 2019 to October 2019 after approval from the Institutional Ethics Committee (IEC). A total of 300 participants (218 females (72.66%) and 82 males (27.33%)) were included in the study. Respondents completed a three-section questionnaire that included sociodemographic data, 15 questions on knowledge, and 12 questions on the attitude and ethical aspects of organ donation. Statistical tests utilized for investigation were the Student's t-test and one-way ANOVA to compare knowledge and attitude scores. Results The mean knowledge score among the participants was 10.85±1.79, with a P value of 0.45. The mean attitude score concerning organ donation among the participants was 45.5±4.47, with a P value of 0.44. The majority (87.1%) showed a positive attitude in this study. Conclusions The study emphasizes the necessity of interdisciplinary educational interventions for medical students to help them realize the complexities of the problem holistically. Their attitude regarding organ donation is not significantly affected by traditional educational interventions such as lectures and demonstrations. Educated healthcare professionals will play a critical role in motivating the public for the cause of organ donation promotion.

2.
AIDS Behav ; 2024 Aug 02.
Article in English | MEDLINE | ID: mdl-39095615

ABSTRACT

Experiencing adverse childhood experiences (ACEs) may impact personal opinions, attitudes, and judgments, which can further result in HIV-related stigma. HIV-related stigma consequentially may impact HIV preventive measures such as HIV testing, pre-exposure prophylaxis uptake, and condom use. The extent to which ACEs influence HIV-related stigma perception has not been well studied. Therefore, the study aimed to examine the association between ACEs and perceived and interpersonal HIV-related stigma among Tanzanian HIV-negative men. Quantitative survey data were obtained from the Tanzania STEP (Self-Testing Education and Promotion) project established in four wards: Mabibo, Manzese, Tandale, and Mwanyanamala. A total of 507 men responded to the ACEs and HIV-related stigma questionnaires. ACEs were operationalized as types of ACEs (environmental, physical/psychological, sexual abuse) and ACE score (0 (reference) vs. 1, 2, 3, ≥ 4). Perceived HIV-related stigma was analyzed both as a binary (HIV stigma vs. no HIV stigma) and a continuous variable. Unadjusted and adjusted multinomial logistic and linear regression models were used to assess the associations between ACEs and HIV-related stigma. ACE types were associated with HIV stigma (b = 0.237, 95% CI [0.122-0.352], p = < .0001). Findings of the adjusted multinomial logistic regression model show that experiencing one ACE (aOR = 1.9; p-value = 0.023), two ACEs (aOR = 1.8; p-value = 0.044), four or more ACEs (aOR = 4.1; p-value = < 0.0001) were associated with greater perceived HIV-related stigma. Moreover, experiencing environmental (aOR = 8.6; p-value = 0.005), physical/psychological (aOR = 2.5; p-value = 0.004), and sexual abuse (aOR = 3.4; p-value = < 0.0001) were associated with higher odds of HIV-related stigma. Our study findings suggest that those who experience childhood trauma are more likely to have a higher perception of HIV-related stigma. Intervention programs targeting HIV stigma should consider addressing ACEs entailing the behavioral and psychological impact of childhood trauma.

3.
AIDS Care ; : 1-6, 2024 Aug 12.
Article in English | MEDLINE | ID: mdl-39134039

ABSTRACT

Childhood sexual abuse (CSA) has been linked to substance use and substance use disorders in adulthood. However, there have been limited studies examining the relationship between CSA and opioid use among older adults living with HIV (OALH). Therefore, the aim of this study was to determine the association between CSA and opioid use among OALH (n = 91). Data were obtained from an HIV clinic population in South Carolina using paper-and-pen, and online questionnaires. CSA was operationalized using six questions from the Early Trauma Inventory-Self Report Form (Yes vs. No). Opioid use was self-report of the use of opioids including: heroin, fentanyl, Oxycontin, Vicodin, codeine, morphine (used vs. never used). Nested crude and multivariable logistic regression models adjusting for sociodemographic confounders were used to determine the association between CSA and opioid use. After adjusting for race, gender, age, and education, OALH who were CSA survivors were 21 times more likely to currently use opioids compared to OALH who were not exposed to CSA (adjusted OR: 21.1; 95% CI: 1.78-250.0). The association seen between CSA history and opioid use may be due to unresolved trauma among OALH. Trauma-informed interventions addressing CSA may help to reduce opioid use among OALH.

4.
Indian J Tuberc ; 71(3): 366-369, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39111949

ABSTRACT

BACKGROUND: Pulmonary Mucormycosis (PM) is a relatively uncommon fungal disease, usually manifested in immunocompromised patients. It has an aggressive course, along with dilemmas in diagnosis and treatment. In view of the surge of Mucormycosis patients in COVID 19 pandemic, clinicians need to consider PM in suspected cases, and act in an expedited manner to avoid misdiagnosis and initiate prompt treatment. CASE PRESENTATION: In this case series, we present four cases of PM with varied presentation, clinical course and discuss management strategies. CONCLUSIONS: A strong suspicion of PM based on epidemiological and clinical findings should be considered, to ensure appropriate and timely treatment. It should be accompanied by judicious use of corticosteroids and aggressive control of comorbid conditions to decrease preventable morbidity and mortality.


Subject(s)
COVID-19 , Lung Diseases, Fungal , Mucormycosis , Humans , Mucormycosis/diagnosis , COVID-19/complications , COVID-19/diagnosis , Male , Middle Aged , Female , Lung Diseases, Fungal/diagnosis , Lung Diseases, Fungal/drug therapy , Adult , Antifungal Agents/therapeutic use , SARS-CoV-2 , Tomography, X-Ray Computed
5.
Article in English | MEDLINE | ID: mdl-38949619

ABSTRACT

The emergence of plant pathogens is often associated with waves of unique evolutionary and epidemiological events. Xanthomonas hortorum pv. gardneri is one of the major pathogens causing bacterial spot disease of tomatoes. After its first report in the 1950s, there were no formal reports on this pathogen until the 1990s, despite active global research on the pathogens that cause tomato and pepper bacterial spot disease. Given the recently documented global distribution of X. hortorum pv. gardneri, our objective was to examine genomic diversification associated with its emergence. We sequenced the genomes of X. hortorum pv. gardneri strains collected in eight countries to examine global population structure and pathways of emergence using phylodynamic analysis. We found that strains isolated post-1990 group by region of collection and show minimal impact of recombination on genetic variation. A period of rapid geographic expansion in X. hortorum pv. gardneri is associated with acquisition of a large plasmid conferring copper tolerance by horizontal transfer and coincides with the burgeoning hybrid tomato seed industry through the 1980s. The ancestry of X. hortorum pv. gardneri is consistent with introduction to hybrid tomato seed production and dissemination during the rapid increase in trade of hybrid seeds.

6.
J Assoc Nurses AIDS Care ; 35(2): 135-143, 2024.
Article in English | MEDLINE | ID: mdl-38949907

ABSTRACT

ABSTRACT: Undetectable = Untransmittable (U = U) means that people with HIV who achieve and maintain an undetectable viral load have effectively zero risk of sexually transmitting the virus to others. However, research on how U = U is perceived by older adults living with HIV (OAH) is currently lacking. This study explored U = U views among OAH. From October 2019 to February 2020, we conducted open-ended interviews with 24 OAH recruited at an HIV clinic in South Carolina. Interviews were audio-recorded and transcribed. We employed thematic analysis in this study. Three themes emerged from the analysis: (a) Conflicting beliefs in U = U; (b) Use condoms regardless; and (c) Fear of HIV reinfection. Despite strong scientific evidence supporting U = U, some OAH do not believe in U = U. This lack of belief could deprive OAH of the benefits U = U offers. Therefore, it is vital to educate OAH about U = U to enhance their understanding and belief in U = U.


Subject(s)
HIV Infections , Qualitative Research , Humans , South Carolina , HIV Infections/psychology , Female , Male , Middle Aged , Aged , Health Knowledge, Attitudes, Practice , Viral Load , Condoms/statistics & numerical data , Interviews as Topic , Sexual Behavior/psychology
7.
Top Curr Chem (Cham) ; 382(3): 26, 2024 Jul 18.
Article in English | MEDLINE | ID: mdl-39023635

ABSTRACT

In this review, we present a systematic and comprehensive summary of the recent developments in the synthetic strategies of 2-(2-hydroxyarylsubstituted)-benzothiazole (HBT) framework along with incorporation of various substituents on phenolic and benzothiazole rings which affect the emission process. The literature, spanning the years 2015-2024, on excited-state intramolecular proton transfer (ESIPT)-based studies of HBT derivatives comprising the effects of solvent polarity, substituents, and extended conjugation on fluorophores has been searched. ESIPT, intramolecular charge transfer, and aggregation-induced emissions enable these fluorescent probes to specifically interact with analytes, thereby altering their luminescence characteristics to achieve analyte detection. These fluorescent probes exhibit large Stokes shifts, high quantum yields, and excellent color transitions. Finally, the applications of HBTs as ESIPT-based fluorescent probes for the detection of cations, anions, and biomolecules have been summarized. We anticipate that this review will provide a comprehensive overview of the current state of research in this field and encourage researchers to develop novel ESIPT-based fluorophores with new applications.


Subject(s)
Benzothiazoles , Fluorescent Dyes , Protons , Benzothiazoles/chemistry , Benzothiazoles/chemical synthesis , Fluorescent Dyes/chemistry , Fluorescent Dyes/chemical synthesis , Ions/chemistry , Ions/analysis , Molecular Structure
8.
NPJ Vaccines ; 9(1): 132, 2024 Jul 22.
Article in English | MEDLINE | ID: mdl-39034332

ABSTRACT

The development of broad-spectrum coronavirus vaccines is essential to prepare for future respiratory virus pandemics. We demonstrated broad neutralization by a trivalent subunit vaccine, formulating the receptor-binding domains of SARS-CoV, MERS-CoV, and SARS-CoV-2 XBB.1.5 with Alum and CpG55.2. Vaccinated mice produced cross-neutralizing antibodies against all three human Betacoronaviruses and others currently exclusive to bats, indicating the epitope preservation of the individual antigens during co-formulation and the potential for epitope broadening.

9.
Genes (Basel) ; 15(7)2024 Jul 14.
Article in English | MEDLINE | ID: mdl-39062698

ABSTRACT

Sheath blight (ShB) is the most serious disease of rice (Oryza sativa L.), caused by the soil-borne fungus Rhizoctonia solani Kühn (R. solani). It poses a significant threat to global rice productivity, resulting in approximately 50% annual yield loss. Managing ShB is particularly challenging due to the broad host range of the pathogen, its necrotrophic nature, the emergence of new races, and the limited availability of highly resistant germplasm. In this study, we conducted QTL mapping using an F2 population derived from a cross between a partially resistant accession (IRGC81941A) of Oryza nivara and the susceptible rice cultivar Punjab rice 121 (PR121). Our analysis identified 29 QTLs for ShB resistance, collectively explaining a phenotypic variance ranging from 4.70 to 48.05%. Notably, a cluster of four QTLs (qRLH1.1, qRLH1.2, qRLH1.5, and qRLH1.8) on chromosome 1 consistently exhibit a resistant response against R. solani. These QTLs span from 0.096 to 420.1 Kb on the rice reference genome and contain several important genes, including Ser/Thr protein kinase, auxin-responsive protein, protease inhibitor/seed storage/LTP family protein, MLO domain-containing protein, disease-responsive protein, thaumatin-like protein, Avr9/Cf9-eliciting protein, and various transcription factors. Additionally, simple sequence repeats (SSR) markers RM212 and RM246 linked to these QTLs effectively distinguish resistant and susceptible rice cultivars, showing great promise for marker-assisted selection programs. Furthermore, our study identified pre-breeding lines in the advanced backcrossed population that exhibited superior agronomic traits and sheath blight resistance compared to the recurrent parent. These promising lines hold significant potential for enhancing the sheath blight resistance in elite cultivars through targeted improvement efforts.


Subject(s)
Chromosome Mapping , Disease Resistance , Oryza , Plant Diseases , Quantitative Trait Loci , Rhizoctonia , Oryza/genetics , Oryza/microbiology , Oryza/immunology , Disease Resistance/genetics , Plant Diseases/genetics , Plant Diseases/microbiology , Plant Diseases/immunology , Rhizoctonia/pathogenicity , Chromosome Mapping/methods , Chromosomes, Plant/genetics , Phenotype , Plant Breeding/methods
10.
Indian J Nucl Med ; 39(2): 83-86, 2024.
Article in English | MEDLINE | ID: mdl-38989319

ABSTRACT

Background: Radioactive solid and liquid waste generated by patients after high-dose iodine therapy may lead to significant radiation exposure if not properly handled. Aims and Objectives: This study was conducted to monitor the radiation exposure along the sewerage drainage system of the high-dose iodine therapy ward and to rule out leakage if any, that might pose a potential radiation hazard to the general public (sewerage workers) and radiation health professional. Materials and Methods: The sewerage drainage system from isolation wards has multiple gate valves to regulate sewerage flow from the high-dose iodine therapy ward into delay and decay tanks (DDT) built, especially for the purpose. Radiation surveillance was done using a Geiger-Muller counter-based survey meter at 11 different locations on a weekly basis for 12 weeks. Results: A total of 26 patients underwent high-dose iodine ablation therapy during the study period in our department, with the highest recorded radiation exposure rate in the sewerage draining system in the 9th week of patient admission. This was at the common gate valve junction (location B) that directed sewerage waste from all four isolation rooms into the common pipeline leading to DDT. Minimal radiation exposure was recorded within Atomic Energy Regulatory Board -prescribed limits with no evidence of leakage. Conclusion: A routine radiation survey is an important component of overall radiation safety in the nuclear medicine department, including sewerage delay tank facilities, which helps keep the radiation exposure to acceptable levels by identifying timely leakage.

11.
Article in English | MEDLINE | ID: mdl-38928931

ABSTRACT

Agricultural producers have worse mental health than the general population; however, recent research has not considered differences in stressors and mental health conditions by gender. A survey was mailed to a random sample of farmers in Illinois to screen for symptoms of anxiety and depression and identify sources of stress and social support. Men experienced more stress related to environmental and economic conditions than women, while women tended to have slightly higher levels of geographic isolation stress than men. Overall, there were no significant differences by gender in the proportion meeting the criteria for depression or anxiety; however, the results are higher than what is observed in the general population. Among those farmers who experience higher levels of stress about geographic isolation, the odds for women farmers to experience depressive symptoms are four times more than men farmers (OR 4.46 (0.91, 21.8); p = 0.06). Additional research should examine the relationship between social support and mental health. Interventions to reduce stress by gender should be considered.


Subject(s)
Depression , Farmers , Mental Health , Social Support , Humans , Female , Male , Farmers/psychology , Farmers/statistics & numerical data , Middle Aged , Adult , Mental Health/statistics & numerical data , Depression/epidemiology , Depression/psychology , Stress, Psychological/psychology , Anxiety/epidemiology , Anxiety/psychology , Aged , Sex Factors , Illinois , Young Adult , Occupational Stress/psychology , Occupational Stress/epidemiology , Agriculture
12.
Front Plant Sci ; 15: 1393305, 2024.
Article in English | MEDLINE | ID: mdl-38841280

ABSTRACT

Pecan (Carya illinoensis), an economically important deciduous tree, bears commercially valuable nutritional nuts. Spring freezes in April can severely injure pecan buds, decreasing bloom, and fruit set. This study determined how low temperatures affect pecan buds/flowers at different growth stages in several pecan scion/rootstock combinations. This study focused on three pecan scion/rootstock combinations: Pawnee/Peruque (PP), Kanza/Giles (KG), and Maramec/Colby (MC), grown at the Cimarron Valley Research Station, Perkins, Oklahoma. Branches at three different growth stages, i.e., outer bud scale shed, one week after bud break, and early bloom stages were collected from PP, MC, and KG. Branches were held in a Conviron E8 freezing unit at 4 temperatures (-2, 0, 2, and 4°C) for 4 and 8 hours; A total of 8 treatments. One sample set was kept as an untreated control. After 2-3 weeks, branch samples from all the temperature treatments were observed and categorized into two groups. Group one with number of branches had healthy buds/formation of healthy leaves/flowers and group two with number of dead branches. The carbohydrate content reserved from dormant was analyzed using an Anthrone reagent. Visual observations and carbohydrate analyses revealed differences in damage and carbohydrate content among the scion/rootstock combinations, low-temperature treatments, and growth stages. The MC combination had minimum visual damage to leaves, buds, and flowers and significantly lower soluble sugars and starch in bark phloem as well as significantly lower soluble sugars in woody tissue xylem. The KG combination had maximum visual damage and significantly higher soluble sugars and starches in the bark, and soluble sugars in the woody tissues. These results indicate the MC combination is more tolerant to spring freeze damage at all three growth stages compared to the other two pecan scion/rootstock combinations. The results also demonstrate the MC combination is using more non-structural carbohydrates, soluble sugars and starches, suggesting this is a possible mechanism in its freeze tolerance.

13.
Blood Cancer J ; 14(1): 99, 2024 Jun 18.
Article in English | MEDLINE | ID: mdl-38890297

ABSTRACT

Current therapies for high-grade TP53-mutated myeloid neoplasms (≥10% blasts) do not offer a meaningful survival benefit except allogeneic stem cell transplantation in the minority who achieve a complete response to first line therapy (CR1). To identify reliable pre-therapy predictors of complete response to first-line therapy (CR1) and outcomes, we assembled a cohort of 242 individuals with TP53-mutated myeloid neoplasms and ≥10% blasts with well-annotated clinical, molecular and pathology data. Key outcomes examined were CR1 & 24-month survival (OS24). In this elderly cohort (median age 68.2 years) with 74.0% receiving frontline non-intensive regimens (hypomethylating agents +/- venetoclax), the overall cohort CR1 rate was 25.6% (50/195). We additionally identified several pre-therapy factors predictive of inferior CR1 including male gender (P = 0.026), ≥2 autosomal monosomies (P < 0.001), -17/17p (P = 0.011), multi-hit TP53 allelic state (P < 0.001) and CUX1 co-alterations (P = 0.010). In univariable analysis of the entire cohort, inferior OS24 was predicated by ≥2 monosomies (P = 0.004), TP53 VAF > 25% (P = 0.002), TP53 splice junction mutations (P = 0.007) and antecedent treated myeloid neoplasm (P = 0.001). In addition, mutations/deletions in CUX1, U2AF1, EZH2, TET2, CBL, or KRAS ('EPI6' signature) predicted inferior OS24 (HR = 2.0 [1.5-2.8]; P < 0.0001). In a subgroup analysis of HMA +/-Ven treated individuals (N = 144), TP53 VAF and monosomies did not impact OS24. A risk score for HMA +/-Ven treated individuals incorporating three pre-therapy predictors including TP53 splice junction mutations, EPI6 and antecedent treated myeloid neoplasm stratified 3 prognostic distinct groups: intermediate, intermediate-poor, and poor with significantly different median (12.8, 6.0, 4.3 months) and 24-month (20.9%, 5.7%, 0.5%) survival (P < 0.0001). For the first time, in a seemingly monolithic high-risk cohort, our data identifies several baseline factors that predict response and 24-month survival.


Subject(s)
Mutation , Tumor Suppressor Protein p53 , Humans , Male , Female , Aged , Tumor Suppressor Protein p53/genetics , Middle Aged , Aged, 80 and over , Adult , Prognosis , Treatment Outcome
14.
Int J Biol Macromol ; 274(Pt 2): 133486, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38944079

ABSTRACT

Composite bio-based hydrogels have been obtaining a significant attention in recent years as one of the most promising drug delivery systems. In the present study, the preparation of composite chitosan-starch hydrogel using maleic acid as a cross-linker was optimized with the help of response surface methodology. The synthesized hydrogel was fluorescent owing to clustering of large number of functional groups. Different analytical techniques, including XRD, FTIR, SEM, XPS, fluorescence and BET were utilized to characterize the prepared hydrogel. XRD analysis confirmed the formation of non-crystalline hydrogel with random arrangement of macromolecular chains. The composite hydrogel exhibited good swelling percentage with pH sensitivity, hemocompatibility and degradability. BET analysis confirmed that the variation in concentration of crosslinker significantly influences the pore volume of the hydrogel. The synthesized composite chitosan-starch hydrogel was utilized as a prospective candidate for controlling drug release. Cefixime as a model drug was loaded onto the synthesized hydrogel utilizing the swelling diffusion method. SEM micrographs showed uniform distribution of drug molecules in the drug loaded hydrogel. In vitro drug release experiments indicated the swelling dependent drug release behaviour of chitosan-starch hydrogel with higher drug release at pH 7.4 (93.08 %) compared to pH 1.2 (67.85 %). The composite chitosan-starch hydrogel was able to prolong and control the drug release up to 12 h. The drug release from the hydrogel followed Korsmeyer-Peppas and Makoid-Banakar model with Fickian diffusion mechanism. Further, the composite hydrogel displayed excitation dependent fluorescence emission with most intense blue emission band at 425 nm with an excitation wavelength of 350 nm. The inclusion of cefixime drug in the hydrogel matrix significantly reduced the fluorescence intensity; the decrease was linearly correlated to the concentration of the drug. Moreover, the fluorescence emission the chitosan-starch hydrogel was found to be dependent upon pH. The synthesized hydrogel is expected to be a potential candidate for controlled drug release as well as for fluorescent sensing applications.


Subject(s)
Chitosan , Drug Carriers , Drug Delivery Systems , Drug Liberation , Hydrogels , Starch , Chitosan/chemistry , Starch/chemistry , Hydrogels/chemistry , Drug Carriers/chemistry , Hydrogen-Ion Concentration , Cefixime/chemistry
15.
Int J Cancer ; 155(5): 894-904, 2024 Sep 01.
Article in English | MEDLINE | ID: mdl-38642029

ABSTRACT

In low- and middle-income countries most of the cancer patients attend the hospital at a late stage and treatment completion of these cases is challenging. The early detection program (EDP), in rural areas of Punjab state, India was initiated to identify breast, cervical, and oral cancer at an early stage by raising awareness and providing easy access to diagnosis and treatment. A total of 361 health education programs and 99 early detection clinics were organized. The symptomatic and self-interested (non-symptomatic individuals who opted for screening) cases visited the detection clinic. They were screened for breast, cervical, and/or oral cancer. Further diagnosis and treatment of screen-positive cases were carried out at Homi Bhabha Cancer Hospital (HBCH), Sangrur. Community leaders and healthcare workers were involved in all the activities. The EDP, Sangrur removed barriers between cancer diagnosis and treatment with the help of project staff. From 2019 to 2023, a total of 221,317 populations were covered. Symptomatic and self-interested individuals attended the breast (1627), cervical (1601), and oral (1111) examinations. 46 breast (in situ-4.3%; localized-52.2%), 9 cervical (localized-77.8%), and 12 oral (localized-66.7%) cancer cases were detected, and treatment completion was 82.6%, 77.8%, and 50.0%, respectively. We compared cancer staging and treatment completion of cases detected through EDP with the cases attended HBCH from Sangrur district in 2018; the difference between two groups is statistically significant. Due to the early detection approach, there is disease down-staging and improvement in treatment completion. This approach is feasible and can be implemented to control these cancers in low- and middle-income countries.


Subject(s)
Breast Neoplasms , Early Detection of Cancer , Mouth Neoplasms , Rural Population , Uterine Cervical Neoplasms , Humans , Female , Early Detection of Cancer/methods , India/epidemiology , Mouth Neoplasms/diagnosis , Mouth Neoplasms/epidemiology , Mouth Neoplasms/therapy , Breast Neoplasms/diagnosis , Breast Neoplasms/epidemiology , Breast Neoplasms/therapy , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Middle Aged , Adult , Male , Aged , Mass Screening/methods , Cancer Care Facilities
16.
Phytopathology ; 114(7): 1433-1446, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38648116

ABSTRACT

In this review, we highlight studies in which whole-genome sequencing, comparative genomics, and population genomics have provided unprecedented insights into past and ongoing pathogen evolution. These include new understandings of the adaptive evolution of secretion systems and their effectors. We focus on Xanthomonas pathosystems that have seen intensive study and improved our understanding of pathogen emergence and evolution, particularly in the context of host specialization: citrus canker, bacterial blight of rice, and bacterial spot of tomato and pepper. Across pathosystems, pathogens appear to follow a pattern of bursts of evolution and diversification that impact host adaptation. There remains a need for studies on the mechanisms of host range evolution and genetic exchange among closely related but differentially host-specialized species and to start moving beyond the study of specific strain and host cultivar pairwise interactions to thinking about these pathosystems in a community context.


Subject(s)
Plant Diseases , Xanthomonas , Xanthomonas/genetics , Xanthomonas/pathogenicity , Xanthomonas/physiology , Plant Diseases/microbiology , Biological Evolution , Host-Pathogen Interactions , Host Specificity , Genome, Bacterial/genetics , Oryza/microbiology , Citrus/microbiology , Capsicum/microbiology , Genomics , Evolution, Molecular
17.
BMJ Open ; 14(4): e080303, 2024 Apr 16.
Article in English | MEDLINE | ID: mdl-38626969

ABSTRACT

INTRODUCTION: Anaemia in the elderly is often difficult to treat with iron supplementation alone as prevalence of anaemia of chronic disease (ACD) alone or mixed with iron-deficiency anaemia (IDA) is high in this age group. Hepcidin remains high in ACD, preventing utilisation of iron for heme synthesis. Vitamin D3 has shown hepcidin suppression activity in both in vitro and in vivo studies. As there is no study assessing the effect of iron-folic acid (IFA) with vitamin D3 on haemoglobin levels in the elderly in India, we want to conduct this study to estimate the impact of supplementation of a therapeutic package of IFA and vitamin D3 on haemoglobin levels in the elderly with mild-to-moderate anaemia in comparison with IFA only. The study will also assess the impact of the proposed intervention on ferritin, hepcidin, 25-hydroxyvitamin D, C reactive protein (CRP) and parathyroid hormone (PTH) levels. METHODS AND ANALYSIS: This study is a community-based, double-blind, placebo-controlled, randomised trial. The study will be done in the Kalyani municipality area. Individuals aged ≥60 years with mild-to-moderate anaemia and normal vitamin D3 levels will be randomised into the intervention (IFA and vitamin D3 supplementation) group or the control group (IFA and olive oil as placebo). All medications will be self-administered. Follow-up will be done on a weekly basis for 12 weeks. The calculated sample size is 150 in each arm. Block randomisation will be done. The primary outcome is change in haemoglobin levels from baseline to 12 weeks. Secondary outcome is change in serum ferritin, 25-hydroxyvitamin D, hepcidin, CRP and PTH levels from baseline to 12 weeks. ETHICS AND DISSEMINATION: Ethical approval from the Institutional Ethics Committee of All India Institute of Medical Sciences Kalyani has been obtained (IEC/AIIMS/Kalyani/Meeting/2022/03). Written informed consent will be obtained from each study participant. The trial results will be reported through publication in a reputable journal and disseminated through health talks within the communities. TRIAL REGISTRATION NUMBER: CTRI/2022/05/042775. PROTOCOL VERSION: Version 1.0.


Subject(s)
Anemia, Iron-Deficiency , Anemia , Humans , Aged , Iron , Cholecalciferol/therapeutic use , Hepcidins , Dietary Supplements , Folic Acid , Anemia/drug therapy , Anemia/epidemiology , Vitamin D , Vitamins/therapeutic use , Ferritins , C-Reactive Protein/metabolism , Double-Blind Method , Calcifediol , Hemoglobins/metabolism , Randomized Controlled Trials as Topic
18.
ISME Commun ; 4(1): ycae037, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38645272

ABSTRACT

Structurally complex corn bran arabinoxylan (CAX) was used as a model glycan to investigate gut bacteria growth and competition on different AX-based fine structures. Nine hydrolyzate segments of the CAX polymer varying in chemical structure (sugars and linkages), CAX, five less complex non-corn arabinoxylans, and xylose and glucose were ranked from structurally complex to simple. The substrate panel promoted different overall growth and rates of growth of eight Bacteroides xylan-degrading strains. For example, Bacteroides cellulosilyticus DSM 14838 (Bacteroides cellulosilyticus) grew well on an array of complex and simple structures, while Bacteroides ovatus 3-1-23 grew well only on the simple structures. In a competition experiment, B. cellulosilyticus growth was favored over B. ovatus on the complex AX-based structure. On the other hand, on the simple structure, B. ovatus strongly outcompeted B. cellulosilyticus, which was eliminated from the competitive environment by Day 11. This adaptation to fine structure and resulting competition dynamics indicate that dietary fiber chemical structures, whether complex or simple, favor certain gut bacteria. Overall, this work supports a concept that fiber degraders diversify their competitive abilities to access substrates across the spectrum of heterogeneity of fine structural features of dietary fibers.

19.
J Pharm Bioallied Sci ; 16(Suppl 1): S118-S121, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38595606

ABSTRACT

Background: Knowledge and awareness studies reveal the basic information of the community and the misconceptions in relation to practices of a disease. The identification of such factors is important as they directly influence the health care-related interventions. Hypertension is one of the emerging noncommunicable diseases (NCDs) globally. So, we conducted this study to assess the status of our community regarding hypertension. Materials and Methods: The study was conducted on 300 hypertensive patients to assess the knowledge and awareness by a hypertension fact questionnaire. Medication adherence was assessed in the same group of patients by Hill-Bone scale-a uniform scale used worldwide. Results: Our study revealed a greater number of females with hypertension as compared to males and a maximum number of patients being in the age-group of 61-70 years and belonging to rural areas. Most of the patients had a secondary education as a highest educational qualification with only 10% of patients being postgraduates. A fair number of patients had a good knowledge and awareness about their disease, and most of the respondents accounted forgetfulness as a main reason for nonadherence to therapy over other reasons. Conclusion: Our population has good knowledge and awareness about their disease despite not having very good educational qualifications, and we need to strengthen our healthcare programs for even more greater dissemination of information.

20.
Indian J Otolaryngol Head Neck Surg ; 76(1): 262-267, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38440660

ABSTRACT

The metabolic syndrome (MS) is a cluster of conditions that occur. togehther, increase risk of heart disease, storke, type 2 diabetes mellitus and hypertension as a possible outcome. The previous research has shown a link between hearing loss and being overweight, diabetic, or suffering from heart disease. However, research on the possible link between hearing loss and metabolic syndrome is limited. Hearing loss due to metabolic syndrome was evaluated in the present investigation. Two hundred individuals with metabolic syndrome were included. All the patients were evaluated on three types of audiometry (pure tone, impedence, and DPOAE).Anthropometric data, blood pressure, blood sugar, and lipid profiles, were all collected from each patient. We also asked about their smoking and drinking habits in the past. SPSS v. 22.0 was used to conduct the statistical analysis. Overall, SNHL affected 58.5% of patients. Patients having moderate hearing loss were the largest demographic group (40%), followed by those with mild hearing loss (15% ). Severe hearing loss only occurred in 3.5% of patients. Hearing loss was shown to be more prevalent in patients with more than three components of metabolic syndrome. Significant associations were found between hearing impairment and metabolic risk factors as waist circumference, fasting blood sugar, serum high-density lipoprotein, serum triglycerides, and systolic and diastolic blood pressure. Hearing loss was only marginally connected to smoking and excessive drinking.

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