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1.
Theor Appl Genet ; 137(3): 50, 2024 Feb 16.
Article in English | MEDLINE | ID: mdl-38363421

ABSTRACT

KEY MESSAGE: Two new major QTL were identified for powdery mildew resistance. We confirmed that the QTL on 7HS contributed mainly to the adult-plant resistance, while another one on chromosome arm 1HS made a significant contribution to the seedling resistance. Powdery mildew (PM), caused by Blumeria hordei, can occur at all post emergent stages of barley and constantly threatens crop production. To identify more genes for effective resistance to powdery mildew for use in breeding programs, 696 barley accessions collected from different regions of the world were evaluated for PM resistance at seedling and adult growth stages in three different states of Australia. These barley accessions were genotyped using DArTSeq with over 18,000 markers for a genome-wide association study (GWAS). Using the FarmCPU model, 54 markers showed significant associations with PM resistance scored at the seedling and adult-plant stages in different states of Australia. Another 40 markers showed tentative associations (LOD > 4.0) with resistance. These markers are distributed across all seven barley chromosomes. Most of them were grouped into eleven QTL regions, coinciding with the locations of most of the reported resistance genes. Two major MTAs were identified on chromosome arms 3HS and 5HL, with one on 3HS contributing to adult plant resistance and the one on 5HL to both seedling and adult plant resistance. An MTA on 7HS contributed mainly to the adult-plant resistance, while another one on chromosome arm 1HS made a significant contribution to the seedling resistance.


Subject(s)
Ascomycota , Hordeum , Hordeum/genetics , Genome-Wide Association Study , Seedlings/genetics , Genetic Markers , Ascomycota/genetics , Plant Breeding , Plant Diseases/genetics , Disease Resistance/genetics
2.
Phytopathology ; 113(6): 1058-1065, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37454241

ABSTRACT

Spot form net blotch, caused by Pyrenophora teres f. maculata, is a significant global disease of barley (Hordeum vulgare). Baudin, a barley cultivar that was until recently extensively grown in Western Australia, was reported as having minor seedling resistance. However, Baudin was highly susceptible to a local isolate, M3, suggesting that this isolate had gained virulence against a major susceptibility gene. M3 causes atypical lesions with pale centers early in the infection, with initial screens of a segregating population indicating that this was determined by a single locus in the Baudin genome. The susceptibility was semidominant in F1 progeny and the susceptibility gene, designated Spm1 (Susceptibility to P. teres f. maculata 1), mapped to a 190-kb section of the resistance gene-rich Mla region of chromosome 1H. Phenotyping with Ptm SP1, a non-M3 pathotype, identified a seedling resistance locus on 2H. Minor gene resistance is generally regarded as potentially durable, but our findings suggest the resistance to spot form net blotch in Baudin is nullified by strong susceptibility conferred by a separate locus on 1H. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.


Subject(s)
Hordeum , Mycoses , Hordeum/genetics , Hordeum/microbiology , Disease Susceptibility , Genetic Predisposition to Disease , Epistasis, Genetic , Plant Proteins/genetics , Plant Diseases/genetics , Plant Diseases/microbiology , Disease Resistance/genetics , Western Australia
3.
Indian J Ophthalmol ; 71(5): 2066-2070, 2023 05.
Article in English | MEDLINE | ID: mdl-37203082

ABSTRACT

Purpose: The purpose of this study was to evaluate retrospectively the efficacy and safety profile of intravitreal injection of bevacizumab bio-similar product Zybev(Z) for macular edema because of retinal diseases. Methods: A retrospective analysis was conducted on patients with macular edema because of retinal diseases, who had been administered intravitreal injections of bio-similar bevacizumab at a tertiary eye care center. Changes in the retinal thickness and visual acuity were evaluated to judge the efficacy, and adverse events were noted for the safety profile over a period of 6 weeks. Results: A total of 104 patients were included in the study. The mean age of the patients was 53 ± 13.5 years. The mean pre-injection best corrected visual acuity (BCVA) was 1.32 ± 0.70 log minimum angle of resolution (logMAR) with a central subfield thickness (CST) of 429.26 ± 204.30 µm, and the post-injection BCVA at 6 weeks was 1.13 ± 0.71 logMAR with a CST of 302.26 ± 104.50 µm; this change was statistically significant (P < 0.05) for all groups. The mean average cube thickness (µm) decreased from 11.85 ± 1.96 pre-injection to 10.52 ± 1.75 post-injection, and the mean average cube volume (mm3) decreased from 329.30 ± 54.35 to 302.23 ± 49.56 (P < 0.05). During the follow-up period after injection, no patient had inflammation, endophthalmitis, an increase in intra-ocular pressure, or systemic side effects. Conclusion: This short-term retrospective analysis provides evidence regarding the efficacy and safety of intravitreal injection of bio-similar products of bevacizumab for the treatment of macular edema because of retinal diseases.


Subject(s)
Macular Edema , Humans , Adult , Middle Aged , Aged , Bevacizumab , Macular Edema/diagnosis , Macular Edema/drug therapy , Macular Edema/etiology , Retrospective Studies , Treatment Outcome , Fluorescein Angiography/adverse effects , Intravitreal Injections , Angiogenesis Inhibitors , Tomography, Optical Coherence
4.
Hematol Oncol ; 41(1): 71-77, 2023 Feb.
Article in English | MEDLINE | ID: mdl-36150219

ABSTRACT

Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is a rare disease. Radiotherapy remains an important definitive modality. We assessed the long term outcomes of patients with early stage gastric MALT marginal zone lymphoma (MZL) treated with definitive radiotherapy at three institutions in New South Wales, Australia. A retrospective, multi-center study of patients with gastric MALT MZ lymphoma treated with radiotherapy between 1st of March 1999 and 31st of May 2020 was conducted. Eligible patients were: age ≥18 years, treated with curative-intent radiotherapy, pathological diagnosis of MALT MZ lymphoma. There were 33 eligible patients. Complete response (CR) was reported in 30/31 (96.7%) of endoscopically assessed cases. During median follow up of 66.2 months (IQR 22-119 months), estimated 5 and 10 years local relapse free survival were 92.6% (95% CI: 83-100) and 92.6% (95% CI: 83-100); distant relapse free survival 95.8% (95% CI 88.2-100) and 64.7% (95% CI 43.4-96.4); freedom from treatment failure 92.6% (95% CI; 83.1-100) and 62.5% (95% CI; 41.7-93.7), respectively. There were six documented recurrences; one local, four distant, and both in one patient; two cases were high grade recurrences. 5 and 10 years OS were 92.4% and 73.5% respectively. There were no grade 3-5 late toxicities or treatment related deaths. Patients with gastric MALT MZL treated with definitive radiotherapy have excellent outcomes. In long term follow up a significant proportion developed distant low grade disease. Extended follow up should be considered in these patients. Treatment is well tolerated with minimal toxicity. Radiotherapy remains an important modality in the treatment of gastric MALT MZ lymphoma.


Subject(s)
Lymphoma, B-Cell, Marginal Zone , Humans , Adolescent , Lymphoma, B-Cell, Marginal Zone/drug therapy , Treatment Outcome , Retrospective Studies , Neoplasm Recurrence, Local
5.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 2): 1420-1424, 2022 Oct.
Article in English | MEDLINE | ID: mdl-36452683

ABSTRACT

The various surgical options for lacrimal tract reconstruction include canaliculodacryocystorhinostomy; fundal transposition; Conjunctivodacrocystorhinostomy with Jones tube; and in extreme cases conjunctivo-rhinostomy (CR) for total lacrimal bypass. The first three require partial lacrimal tract presence/ integrity while CR is indicated when the canaliculi and/or sac are nonfunctional. This report describes a novel technique of minimally invasive CR through a predominantly endoscopic endonasal approach and further discusses its advantages over other established techniques.

6.
Indian J Ophthalmol ; 70(11): 3904-3909, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36308124

ABSTRACT

Purpose: To evaluate and compare endothelial cell changes in phacoemulsification and manual small-incision cataract surgery (MSICS) in patients with uncomplicated senile cataracts. Methods: This was a prospective: , tertiary care hospital-based, randomized, double-blinded interventional study. In total, 152 patients with an uncomplicated senile cataract of nuclear grade III and above were recruited. Exclusion criteria included patients with preoperative endothelial cell density (ECD) less than 1500 cells/mm3, a history of previous ocular surgery, any other coexisting ocular disease, and intraoperative or postoperative surgical complications. Preoperative and postoperative values of ECD and central corneal thickness (CCT) were measured, analyzed, and correlated with various factors. Results: Patients were randomized into two interventional groups-MSICS and phacoemulsification. Factors associated with significant drop in postoperative ECD following phacoemulsification were patients with advanced age (P = 0.01), higher grades of cataract (P = 0.01), and longer effective phacoemulsification time (P = 0.007). Shallow anterior chamber depth (ACD) was strongly associated with greater ECD loss in both groups (P < 0.0001). A threshold value of 2.86 mm of ACD was defined for minimal endothelial cell loss following phacoemulsification. CCT was observed to slightly increase postoperatively in both groups but was insignificant (P > 0.05). Conclusion: Both MSICS and phacoemulsification have similar postoperative visual outcomes. An increase in postoperative CCT is insignificant following surgery. Greater postoperative ECD loss is associated with phacoemulsification with advanced age, hard nuclear cataracts, and longer effective phacoemulsification time. ACD can be used as an essential parameter preoperatively to determine the choice of surgical technique between MSICS and phacoemulsification.


Subject(s)
Cataract Extraction , Cataract , Ophthalmology , Phacoemulsification , Humans , Phacoemulsification/adverse effects , Phacoemulsification/methods , Prospective Studies , Cataract Extraction/adverse effects , Cataract Extraction/methods , Cataract/complications , Endothelium, Corneal , Postoperative Complications
7.
Cancer Treat Res Commun ; 28: 100431, 2021.
Article in English | MEDLINE | ID: mdl-34333247

ABSTRACT

INTRODUCTION: The incidence of Gallbladder Cancer (GBC) is found to be increasing in the rural populations of north-central India. Role of multiple demographic factors, including poor socio-economic conditions, illiteracy and miserable primary healthcare services appear to be significant factors for this increase. Here, we aim to assess the present status of GBC in north-central India and evaluate the role of immunological markers in its management. METHODS: A total of 1845 cases of different Gallbladder diseases, including GBC, from rural and urban areas both, registered at CHRI, Gwalior during 2009-2014 and 2018 were included in this study. The demographic and clinical information of the patients were analysed using various statistical tests. RESULTS: Of all the cases (1845) included in this study, 1125 (60.97%) were diagnosed with GBC, of which, 707 (62.84%) were from rural background and 418 (37.15%) from urban settings. Mean age for GBC cases for both male and female was about 53.49 years. Females were more affected, being 70.37%, while male patients were only 29.63%. The pathological investigations showed elevated levels of total bilirubin and liver function enzymes both. The NLR, PLR and MLR were found to be significantly associated with different clinical parameters as well as OS. CONCLUSION: We infer that the growing trend of GBC, particularly in rural areas, in north-central India is primarily associated with the lack of awareness, inadequate medical support and poor socio-economic conditions. Evaluation of haematological markers may help in the predictive diagnosis/ prognosis and or management of GBC cases in the studied population.


Subject(s)
Biomarkers, Tumor/metabolism , Gallbladder Neoplasms/epidemiology , Gallbladder Neoplasms/immunology , Adult , Female , Gallbladder Neoplasms/mortality , Gallbladder Neoplasms/pathology , Humans , Incidence , India , Male , Middle Aged , Prognosis , Survival Analysis
8.
J Marriage Fam ; 83(3): 786-802, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34334812

ABSTRACT

OBJECTIVE: The authors analyzed variation by education and type of day in the "time availability" association between U.S. mothers' paid work hours and housework and child care, types of work that vary by their urgency, affect, and symbolic meaning. BACKGROUND: Research shows a stronger negative association of women's work hours with housework than child care, and interprets this as evidence to show mothers prioritize child care over housework. The authors extend this work by determining if associations of work hours with partnered mothers' housework and child care differ by college education and type of day. METHOD: The authors used ordinary least squares regression on weekend and weekday time diaries of partnered mothers aged 18-65 (N = 22,816) from the 2003-2018 American Time Use Survey (https://timeuse.ipums.org/). RESULTS: Authors found negative associations of mothers' work hours with weekday housework and child care. They found a negative association of college degrees with weekday housework but a positive association with child care that attenuates at longer work hours. The negative work hour association, and the education gap in predicted child care time, persisted on weekends. Work hour and education associations with weekend housework were positive, and the education gap widened at longer work hours. CONCLUSION: The "time availability" constraint of employment hours applies to child care and housework, even among mothers with college degrees. Education differences in unpaid work, particularly child care, are most evident on weekends.

9.
Oman J Ophthalmol ; 14(1): 33-37, 2021.
Article in English | MEDLINE | ID: mdl-34084032

ABSTRACT

CONTEXT: Effect of fluid reflux on intraocular pressure (IOP) and therapeutic benefits. AIMS: The aim of this study is to compare two intravitreal injection techniques in terms of fluid reflux, short-term IOP changes, and therapeutic effect. SETTINGS AND DESIGN: A prospective, double-blinded, randomized interventional study. SUBJECTS AND METHODS: Sixty eyes were randomly allocated to two groups (direct intravitreal injection technique and oblique intravitreal injection technique). IOP was measured before and immediately after the injection of 0.1 ml comprising of bevacizumab (1.25 mg/0.05 ml) and dexamethasone (0.2 mg/0.05 ml) and then at 30 min after the injection. Occurrence and amount of vitreous reflux were recorded. Best-corrected visual acuity (BCVA) and central macular thickness (CMT) were assessed preinjection and 6 weeks postinjection. RESULTS: IOP (mmHg ± standard deviation) increased significantly immediately after injection to 24.30 ± 3.02 (direct intravitreal injection) and 31.50 ± 3.49 (oblique intravitreal injection). These pressure rise differed significantly between both groups (mean difference: 7.2, P < 0.0001). Thirty minutes after injection, there was no significant difference in IOP increase between the groups. Occurrence and amount of fluid reflux were significantly higher with direct intravitreal injection. There was no significant difference in BCVA and CMT outcome between both groups. CONCLUSIONS: Direct intravitreal injection technique has lower rise in IOP and higher incidence of fluid reflux than the oblique intravitreal technique. Fluid reflux does not cause a therapeutic compromise in terms of BCVA or CMT changes, so the reflux fluid must be the vitreous not the drug. Thus, direct injection technique seems to be the preferred technique.

10.
Nat Commun ; 11(1): 4225, 2020 08 24.
Article in English | MEDLINE | ID: mdl-32839463

ABSTRACT

Gallbladder cancer (GBC) is an aggressive gastrointestinal malignancy with no approved targeted therapy. Here, we analyze exomes (n = 160), transcriptomes (n = 115), and low pass whole genomes (n = 146) from 167 gallbladder cancers (GBCs) from patients in Korea, India and Chile. In addition, we also sequence samples from 39 GBC high-risk patients and detect evidence of early cancer-related genomic lesions. Among the several significantly mutated genes not previously linked to GBC are ETS domain genes ELF3 and EHF, CTNNB1, APC, NSD1, KAT8, STK11 and NFE2L2. A majority of ELF3 alterations are frame-shift mutations that result in several cancer-specific neoantigens that activate T-cells indicating that they are cancer vaccine candidates. In addition, we identify recurrent alterations in KEAP1/NFE2L2 and WNT pathway in GBC. Taken together, these define multiple targetable therapeutic interventions opportunities for GBC treatment and management.


Subject(s)
DNA-Binding Proteins/genetics , Frameshift Mutation , Gallbladder Neoplasms/genetics , Genetic Predisposition to Disease/genetics , Proto-Oncogene Proteins c-ets/genetics , Transcription Factors/genetics , Cancer Vaccines/genetics , Cancer Vaccines/immunology , Chile , DNA-Binding Proteins/immunology , DNA-Binding Proteins/metabolism , Gallbladder Neoplasms/diagnosis , Gallbladder Neoplasms/metabolism , Gene Expression Profiling/methods , Gene Expression Regulation, Neoplastic , Genomics/methods , Humans , India , Kelch-Like ECH-Associated Protein 1/genetics , Kelch-Like ECH-Associated Protein 1/metabolism , NF-E2-Related Factor 2/genetics , NF-E2-Related Factor 2/metabolism , Proto-Oncogene Proteins c-ets/immunology , Proto-Oncogene Proteins c-ets/metabolism , Republic of Korea , Transcription Factors/immunology , Transcription Factors/metabolism , Wnt Signaling Pathway/genetics , beta Catenin/genetics , beta Catenin/metabolism
11.
Theor Appl Genet ; 133(7): 2307-2321, 2020 Jul.
Article in English | MEDLINE | ID: mdl-32405768

ABSTRACT

KEY MESSAGE: An effective and stable quantitative resistance locus, QSc.VR4, was fine mapped, characterized and physically anchored to the short arm of 4H, conferring adult plant resistance to the fungus Rhynchosporium commune in barley. Scald caused by Rhynchosporium commune is one of the most destructive barley diseases worldwide. Accumulation of adult plant resistance (APR) governed by multiple resistance alleles is predicted to be effective and long-lasting against a broad spectrum of pathotypes. However, the molecular mechanisms that control APR remain poorly understood. Here, quantitative trait loci (QTL) analysis of APR and fine mapping were performed on five barley populations derived from a common parent Vlamingh, which expresses APR to scald. Two QTLs, designated QSc.VR4 and QSc.BR7, were detected from a cross between Vlamingh and Buloke. Our data confirmed that QSc.VR4 is an effective and stable APR locus, residing on the short arm of chromosome 4H, and QSc.BR7 derived from Buloke may be an allele of reported Rrs2. High-resolution fine mapping revealed that QSc.VR4 is located in a 0.38 Mb genomic region between InDel markers 4H2282169 and 4H2665106. The gene annotation analysis and sequence comparison suggested that a gene cluster containing two adjacent multigene families encoding leucine-rich repeat receptor kinase-like proteins (LRR-RLKs) and germin-like proteins (GLPs), respectively, is likely contributing to scald resistance. Adult plant resistance (APR) governed by QSc.VR4 may confer partial levels of resistance to the fungus Rhynchosporium commune and, furthermore, be an important resource for gene pyramiding that may contribute broad-based and more durable resistance.


Subject(s)
Ascomycota/pathogenicity , Chromosome Mapping , Disease Resistance/genetics , Hordeum/genetics , Plant Diseases/genetics , Alleles , Chromosomes, Plant , Genes, Plant , Genetic Markers , Genotype , Hordeum/microbiology , Limit of Detection , Models, Genetic , Multigene Family , Phenotype , Plant Diseases/microbiology , Quantitative Trait Loci
12.
Indian J Med Res ; 151(4): 311-318, 2020 04.
Article in English | MEDLINE | ID: mdl-32461394

ABSTRACT

Background & objectives: Gall bladder cancer (GBC) is a fatal neoplasm, with a globally variable incidence rates. To improve the survival rate of patients, a newer set of biomarkers needs to be discovered for its early detection and better prognosis. Our earlier studies on GBC proteomics and whole-genome methylome data revealed expression of desmin to be significantly downregulated with correlated promoter hypermethylation during gall bladder carcinogenesis. Thus, to evaluate desmin as a potential biomarker for GBC, we carried out a detailed follow up study. Methods: Methylation-specific polymerase chain reaction (MS-PCR) (n=17, GBC and n=23, non-tumour control), real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) [n=14, GBC and n=14, adjacent non-tumour (ANT)], immunohistochemistry (n=27, GBC and n=14, non-tumour) and immunoblotting (n=13, GBC and n=13, ANT) were performed in surgically removed gall bladder tissue samples. Results: MS-PCR analysis showed methylation of desmin in 88.23 per cent (15/17) gall bladder tumour samples as compared to non-tumour tissues (39.13%, 9/23). Real-time qRT-PCR analysis revealed a significant downregulation of desmin expression in GBC as compared to ANT tissue. This was further confirmed by western blot, showing reduced expression of desmin protein in GBC, as compared to non-tumour tissue. Immunohistochemical analysis also showed a decreased level of desmin i.e., more than 95 per cent (26/27) in tumour cells compared to non-tumours (35.71%, 5/14). Interpretation & conclusions: The increased frequency of desmin promoter methylation which could be responsible for its significant downregulation, indicates its potential as a candidate biomarker for GBC. This requires further validation in a large group of patients to evaluate its clinical utility.


Subject(s)
Gallbladder Neoplasms , DNA Methylation/genetics , Desmin/genetics , Disease Progression , Down-Regulation/genetics , Epigenesis, Genetic/genetics , Follow-Up Studies , Gallbladder Neoplasms/genetics , Humans
13.
Indian J Ophthalmol ; 68(4): 577-582, 2020 04.
Article in English | MEDLINE | ID: mdl-32174572

ABSTRACT

Purpose: To compare intracameral Ropivacaine to Lignocaine during phacoemulsification under augmented topical anesthesia, in terms of efficacy and safety. Methods: This prospective, randomized, double-masked clinical trial included subjects planned for phacoemulsification with posterior chamber intraocular lens implantation for visually significant uncomplicated senile cataract, under augmented topical anesthesia. Cases were randomized into two groups, Group A (Ropivacaine 0.1%) or Group B (Lignocaine 1.0%). The pain experienced by the patients during the surgery, mydriasis, post-op inflammation and endothelial cell change at six weeks after the procedure was evaluated. Surgeon's feedback was recorded to evaluate the cooperation of the patient during surgery. Results: A total of 210 subjects were screened and 184 were randomized to have 92 subjects in each group. There was no statistically significant difference seen on comparing Group A and B with respect to Age (P = 0.05), painful surgical steps (P = 0.85), visual analog scale scores (P = 0.65), surgeon's score (P = 0.11), postoperative inflammation (P = 0.90) and average ultrasound time during phacoemulsification (P = 0.10). Subjects in Group A fared better when compared to Group B with respect to endothelial cell loss (P = 0.0008), and augmentation in mydriasis (P < 0.001). Conclusion: Intracameral Ropivacaine and Lignocaine, both are equally effective in providing analgesia during phacoemulsification. However, intracameral Ropivacaine is superior to Lignocaine with regards to corneal endothelial cell safety, and augmenting mydriasis.


Subject(s)
Lidocaine , Phacoemulsification , Anesthesia, Local , Anesthetics, Local , Anterior Chamber , Humans , Pain Measurement , Prospective Studies , Ropivacaine
14.
Oman J Ophthalmol ; 13(1): 34-36, 2020.
Article in English | MEDLINE | ID: mdl-32174738

ABSTRACT

High voltage electric burns can cause various ocular injuries and may manifest in the form of conjunctival hyperemia, corneal opacities, uveitis, miosis, spasm of accommodation, cataract, retinal edema, papilledema, choroidal rupture, chorio-retinal necrosis/atrophy, retinal detachment and optic atrophy. The involvement of crystalline lens exclusively with sparing of other ocular structures is rare. We report a case of 16 year old male with bilateral total cataract after electrical injury by over-head high tension electric transmission cable accidentally falling on patient's head 6 months back. B scan showed no abnormality in both the eyes. The intra ocular pressure in both the eyes was within normal limits. Patient underwent lens aspiration with posterior chamber intraocular lens (PCIOL) implantation in both the eyes, under peribulbar anaesthesia (with an interval of 1 week between both the operations). Intra-operative and post-operative period were uneventful. Post operative BCVA was 6/6 in both eyes and fundus examination was within normal limits. Outcomes after surgery are very good if not associated with other ocular lesion like optic atrophy, chorio-retinal lesion, uveitis etc. This observation should encourage the ophthalmologist to undertake surgery for electric cataract, where necessary.

15.
BMJ Case Rep ; 12(7)2019 Aug 01.
Article in English | MEDLINE | ID: mdl-31371327

ABSTRACT

A 65-year-old man, a known case of advanced pancreatic cancer on cisplatin and gemcitabine-based chemotherapy, presented with sudden bilateral painless loss of vision with altered sensorium. Clinical examination showed a normal pupillary light reaction, normal anterior segment and normal fundus. MRI brain showed bilateral parieto-occipital infarct. This report highlights the incidence of cortical blindness due to thromboembolism at the cerebral level in pancreatic cancer. Cerebral ischaemic events occur at an advanced stage of pancreatic cancer already diagnosed at stroke onset and portend a poor prognosis. Anticoagulation therapy, especially low molecular weight heparin, remains the best strategy to prevent recurrences.


Subject(s)
Blindness, Cortical/etiology , Cerebral Infarction/etiology , Pancreatic Neoplasms/complications , Aged , Humans , Male
16.
Sci Rep ; 9(1): 11298, 2019 08 05.
Article in English | MEDLINE | ID: mdl-31383904

ABSTRACT

Barley yellow dwarf virus is a widespread disease affecting plant growth and yield in cereal crops including barley. Complete resistance to BYDV encoded by a single gene is lacking in barley. To identify novel resistance genes that can be further utilised in breeding for plant disease resistance, a doubled haploid population originated from a cultivated barley with a known resistance gene and a wild barley was constructed and assessed for barley yellow dwarf tolerance in three trials with two in Tasmania (TAS) and one in Western Australia (WA). We identified two Quantitative trait loci (QTL) in both Tasmanian trials, and four QTL in Western Australian trial. Two QTL from TAS trials were also detected from WA. The QTL on chromosome 3H corresponds to the known major resistance gene Ryd2. The other QTL, Qbyd-5H, represents a potential new resistance locus and contributed 7.0~10.4% of total phenotypic variation in the three trials. It was mapped within the interval of 125.76~139.24 cM of chromosome 5H. Two additional minor effect QTL were identified on chromosome 7H from WA trial, contributing slightly less effect on BYD tolerance. The consistently detected new gene on chromosome 5H will potentially serve as a novel source of tolerance to achieve more sustainable resistance to BYDV in barley.


Subject(s)
Hordeum/genetics , Hordeum/virology , Luteovirus/physiology , Plant Diseases/genetics , Plant Diseases/virology , Chromosomes, Plant , Disease Resistance , Host-Parasite Interactions , Quantitative Trait Loci
17.
Mol Breed ; 38(8): 103, 2018.
Article in English | MEDLINE | ID: mdl-30174537

ABSTRACT

Adult plant resistance against plant pathogens is of interest as a means to achieve durable resistance. Prior to this research, the barley lines CLE210 (from Uruguay) and Denar (from the Czech Republic) had been reported to exhibit adult-plant resistance against powdery mildew. Here, populations of doubled haploid lines from crosses of these lines with the susceptible cultivar Baudin were evaluated for powdery mildew resistance in field experiments. Using linkage maps constructed from genotyping-by-sequencing (GBS) data, it was determined that differences in resistance were largely attributable to a region on the long arm of chromosome 5H (5HL). Therefore, KASP™ assays were developed based on GBS tag sequences mapped on that chromosome, providing more reliable genetic maps. In each population, a large-effect QTL was mapped on 5HL. As no sequence variation was detected between CLE210 and Denar in this region of 5HL, the two sources of resistance may be identical by descent in the QTL region and carry the same resistance gene. Marker assays from the QTL region were evaluated on a panel of barley lines, providing information that breeders could use to select assays for use in marker-assisted selection.

18.
Oman J Ophthalmol ; 11(2): 119-123, 2018.
Article in English | MEDLINE | ID: mdl-29930444

ABSTRACT

CONTEXT: Topical anesthesia has been used for pars plana vitrectomy (PPV) with limited patient comfort. Thus, augmenting topical anesthesia with intracameral anesthesia (Trojan horse anesthesia) will provide pain-free experience during PPV. AIMS: This study was undertaken to evaluate the patient comfort and surgical safety using 2% lignocaine jelly augmented with intracameral 1.0% lignocaine solution for anesthetizing the eyes undergoing PPV. SETTINGS AND DESIGN: This was a prospective interventional case series at tertiary care hospital. SUBJECTS AND METHODS: Patients planned for PPV for indications other than retinal detachment were included in the study. The pain perception of the participants undergoing PPV under Trojan horse anesthesia was evaluated using visual analog scale (VAS). STATISTICAL ANALYSIS USED: Data analysis was done using descriptive statistics and nonparametric analysis with level of significance at P < 0.05. RESULTS: There were 114 eyes of 114 patients in the study out of which 68.4% (n = 78) were males. The mean age was 42.31 years (range 14-80 years, standard deviation [SD] 18.7). The mean surgical time was 34.0 min (range 13-80 min, SD 14.2). The pain perception on VAS scale averaged 3.0 (range 0-8, SD 1.59, median 3.0). Pain scores were not affected by the age (Pearson correlation = 0.098, P = 0.3), gender (P = 0.44), or the educational status of the participant (P = 0.28). The pain scores were not affected by the indications of surgery (P = 0.58) or the use of silicone oil (P = 0.07). CONCLUSIONS: Trojan horse anesthesia provides adequate analgesia for comfortable and safe 23-gauge PPV with high patient acceptability.

19.
Indian Heart J ; 70(1): 165-174, 2018.
Article in English | MEDLINE | ID: mdl-29455773

ABSTRACT

Takotsubo syndrome is a reversible acute heart failure frequently precipitated by an emotional or physical stress. The clinical presentation resembles acute coronary syndrome. Pathogenesis is complex and may involve brain-heart axis and neuro-hormonal stunning of the myocardium. Coronary angiography reveals normal epicardial arteries with no obstruction or spasm. NT-ProBNP maybe remarkably elevated. Regional wall motion akinesia (RWMA) of left ventricle extends beyond the territory of one coronary artery. Reduced left ventricle ejection fraction (LVEF) and RWMA recover in 6-12 weeks. Prognosis is generally good. Recent meta-analysis shows in-hospital mortality of 1-4.5% and recurrence rate of 5-10% during five year follow-up.


Subject(s)
Coronary Angiography/methods , Electrocardiography/methods , Heart Ventricles/diagnostic imaging , Takotsubo Cardiomyopathy/diagnosis , Ventricular Function, Left/physiology , Heart Ventricles/physiopathology , Humans , Takotsubo Cardiomyopathy/physiopathology
20.
Blood Lymphat Cancer ; 8: 13-20, 2018.
Article in English | MEDLINE | ID: mdl-31360090

ABSTRACT

BACKGROUND: This study evaluated relapse patterns and survival in advanced Hodgkin lymphoma (HL) patients treated with doxorubicin, bleomycin, vinblastine and dacarbazine (ABVD) with positron emission tomography (PET) used for staging and response assessment. PATIENTS AND METHODS: Patients aged 18 years or above with newly diagnosed histologically proven Stage III or IV HL treated with ABVD at Calvary Mater Newcastle from January 2005 to December 2012 were included in this study. All patients underwent pre-chemotherapy staging with 18F-fluorodeoxyglucose PET or PET/computed tomography and post-chemotherapy PET or PET/computed tomography for the assessment of response. RESULTS: Forty-three patients were included in the study. The 5-year disease-free survival, progression-free survival and overall survival were 88%, 74% and 86%, respectively. PET complete response was seen in 35 patients (81%), and the 5-year overall survival for this group was 94%. Relapse following a PET complete response was low (three patients) and occurred predominantly at the initial sites of disease. Four of five patients with bulky disease received consolidative radiotherapy and no in-field relapses were observed. CONCLUSION: Advanced stage HL with a PET complete response following ABVD is associated with an excellent prognosis.

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