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Dhareula A, Goyal A, Gauba K, Bhatia SK, Kapur A, Bhandari S. A clinical and radiographic investigation comparing the efficacy of cast metal and indirect resin onlays in rehabilitation of permanent first molars affected with severe molar incisor hypomineralisation (MIH): a 36-month randomised controlled clinical trial. Eur Arch Paediatr Dent 2019; 20:489-500. [DOI: 10.1007/s40368-019-00430-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 03/05/2019] [Indexed: 11/29/2022]
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Goyal A, Mann B, Thompson AM. Abstract PD8-05: POSNOC - Positive sentinel node: Adjuvant therapy alone versus adjuvant therapy plus clearance or axillary radiotherapy. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-pd8-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Role of additional axillary treatment (AxT) (axillary lymph node dissection (ALND) or axillary radiotherapy (ART)) in women with ≤2 macrometastases and undergoing systemic therapy remains unclear. Z11 included both micro and macrometastases (around 40% micrometastases) and showed that ALND may be omitted in women with ≤2 positive nodes undergoing breast conserving surgery (BCS) and receiving whole breast RT. Paradoxically, NCIC MA20, demonstrated improved DFS following the addition of regional RT. 51.8% (949/1832) had 1 or 2 positive nodes. 98.9% (1812/1832) had T1/T2 tumours. A post-Z11 survey shows that most US radiation oncologists treat the undissected axilla in women with macrometastases with ART rather than omitting AxT. Therefore, a confirmatory study is needed to clarify the role of additional AxT in women with ≤2 macrometastases undergoing BCS and other subgroups that were not included in Z11 e.g. mastectomy, microscopic extranodal invasion and sentinel node biopsy (SNB) before neoadjuvant chemotherapy.
Methods: Primary objective is to assess whether for women with ≤2 macrometastases at SNB, systemic therapy alone is non-inferior to systemic therapy plus AxT in terms of axillary recurrence at 5 years. Secondary objectives are arm morbidity assessed by LBCQ and QuickDASH questionnaires; QoL assessed by FACT-B+4 questionnaire; anxiety assessed by STAI; loco-regional recurrence; distant metastasis; time to axillary recurrence; axillary recurrence-free survival; DFS; OS; contralateral breast cancer; non-breast malignancy; and economic evaluation. Eligibility criteria include: ≥18 y, uni or multifocal invasive cancer, T1/T2, 1 or 2 macrometastases, with or without extranodal invasion. Target sample size is 1900 with a projected drop-out and non-compliance with treatment allocation rate of 10%. Primary analysis will be per protocol. The following pre-specified subgroup analyses shall be performed: number of macrometastases (1, 2), age (<50, ≥50), breast surgery (mastectomy, BCS), ER (positive, negative), tumour grade (1 or 2, 3), SN assessment technique (OSNA, non-OSNA), extranodal invasion (present, absent). POSNOC opened to recruitment in July 2014. To date 1100 women have been recruited at 82 sites in the UK and 18 sites in Australia and New Zealand. Clinicaltrials.gov NCT02401685.
Citation Format: Goyal A, Mann B, Thompson AM. POSNOC - Positive sentinel node: Adjuvant therapy alone versus adjuvant therapy plus clearance or axillary radiotherapy [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr PD8-05.
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Ingham J, Angotti R, Lewis M, Goyal A. Onabotulinum toxin A in children with refractory idiopathic overactive bladder: medium-term outcomes. J Pediatr Urol 2019; 15:32.e1-32.e5. [PMID: 30224301 DOI: 10.1016/j.jpurol.2018.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 08/06/2018] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Botulinum toxin-A (BtA) has been used for refractory idiopathic overactive bladder (IOAB) in children. Data on the optimum dose success rates, duration of effect, complications and medium-term outcomes are limited. This study aims to analyse the authors' experience to provide medium-term results of BtA in symptomatic refractory patients. MATERIALS AND METHODS Patients with refractory IOAB who were treated with BtA (Botox®) were retrospectively analysed. All patients had urodynamic study before treating with BtA. Group A had low-dose BtA (LDBtA) at 5 units/kg (maximum 150 units), and Group B had high-dose BtA (HDBtA) at 10 units/kg (maximum 300 Units). Post-BtA clinical response, functional bladder capacity (FBC) and postvoid residual (PVR) were assessed in addition to the duration of response. RESULTS Thirty-nine patients, 11 male and 28 female, were analysed. Forty-six percentage had symptom improvement (73% of males and 36% of females [P = 0.072, ns]). The difference in response rates between LDBtA and HDBtA was not statistically significant (P = 0.684). Increase in total bladder capacity (TBC) was greater in those given HDBtA (P ≤ 0.001), but the increase in FBC was not different between the groups, due to greater PVRs in the HDBtA group. Nine patients (23%) developed UTI; however, six of these patients suffered with UTI pre-BtA as well. Only three were asymptomatic after a single treatment with BtA. The remainder required further BtA or oral anticholinergic therapy. At a median follow-up of 35.4 months (interquartile range [IQR] 25.2-46.6), 12 (31%) were asymptomatic and off all therapy, 18 (46%) were still symptomatic despite therapy and 9 (23%) had their symptoms controlled on continuing treatment. DISCUSSION AND CONCLUSIONS Botulinum toxin-A improves symptoms in 46% of children after the first injection in refractory IOAB. Although HDBtA resulted in greater increase in bladder capacity, it conferred no advantage in terms of success rate or duration of response. Five units/kg may be an optimum dose to use as a first treatment with the understanding that some patients will require a higher dose. And, there will be a cohort of patients who need a dose lower than 5 units/kg. A higher dose is more likely to lead to PVR leading to urine stasis and UTIs. The success of BtA only lasts until its effect wears off, and the majority of this cohort (36/39) required continuing treatment with repeat BtA or anticholinergic agents. However, it remains a useful option in patients who are intolerant or unresponsive to anticholinergic medication with symptomatic resolution in 30% at medium-term follow-up.
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Nawaz S, Goyal A, Farooqi M, Pai S, Snapper S, Raje N, Field M. A CASE OF VERY EARLY ONSET INFLAMMATORY BOWEL DISEASE, CHRONIC LUNG DISEASE, AND RECURRENT INFECTIONS. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Asati V, Lakshmaiah K, Govind Babu K, Lokanath D, Jacob L, Suresh Babu M, Lokesh K, Rajeev L, Rudresha A, Smitha S, Giri G, Koppaka D, Anand A, Chethan R, Chaudhuri T, Patidar R, Goyal A, Premalata C. A prospective study to determine survival outcome to CHOP-based therapy in patients with double expresser DLBCL: Single centre experience from India. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy437.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Asati V, Premalata C, Govind Babu K, Lakshmaiah K, Lokanath D, Jacob L, Suresh Babu M, Lokesh K, Rudresha A, Rajeev L, Smitha S, Giri G, Koppaka D, Chaudhuri T, Anand A, Chethan R, Goyal A, Patidar R. An attempt to predict double expresser DLBCL based on cell of origin and proliferative index (Ki-67): A prospective study from India. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy437.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Goyal A, Lazaryan A. 193 Increased risk of malignancy in mycosis fungoides: A single-center perspective. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Bhatavdekar JM, Vora HH, Goyal A, Shah NG, Karelia NH, Trivedi SN. Significance of Ferritin as a Marker in Head and Neck Malignancies. TUMORI JOURNAL 2018; 73:59-63. [PMID: 3824534 DOI: 10.1177/030089168707300112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The efficiency of the combination of two tumor-associated antigens in recognising head and neck cancer was evaluated. The markers studied were CEA and ferritin by radioimmunoassay. CEA was estimated in 22 controls and 41 head and neck cancer patients. There was no difference in CEA values of controls and head and neck cancer patients, suggesting that CEA was not specific for head and neck malignancies. We measured serum ferritin in 27 controls and 58 patients with head and neck cancer. The mean ferritin level was significantly higher in patients (P < 0.001) than in normal subjects. The ferritin level in patients with no evidence of clinical disease 8 months after treatment showed approximately normal levels, whereas the levels showed a tendency to increase or remain at high levels in patients with a poor prognosis, giving support to the contention that ferritin may prove to be a valuable adjunct in head and neck cancer.
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Bhardwaj S, Goyal S, Yadav AK, Goyal A. Multi-organ IgG4-related disease: Demystifying the diagnostic enigma. J Postgrad Med 2018; 64:119-122. [PMID: 29067928 PMCID: PMC5954809 DOI: 10.4103/jpgm.jpgm_778_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 02/08/2017] [Accepted: 04/28/2017] [Indexed: 02/05/2023] Open
Abstract
IgG4-related disease (IgG4-RD) is a multisystemic mass forming immune-mediated disease entity, commonly creating confusion and diagnostic challenges. We present a case of a 25-year-old female who presented with bilateral orbital masses, lymphadenopathy, paraspinal and renal masses, which clinicoradiologically simulated lymphoma. The lymph node biopsy revealed interfollicular sheets of plasma cells creating confusion with Castleman's disease and marginal zone lymphoma. The orbital biopsy revealed ductular destruction, periductular plasma cells, and fibrosis, mimicking Sjogren's syndrome and Castleman's disease. However, the correlation of the clinical features with histopathological findings, IgG4 immunopositivity, and serum studies helped in clinching the diagnosis. This case presents an uncommon combination of clinical features infrequently reported in literature. Furthermore, and more importantly, it highlights the need to keep a differential of IgG4-RD in mind, to aid early and correct treatment of the disease.
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Puri S, Sharma N, Newcombe R, Kaushik M, Al-Attar M, Pascaline S, Hajaj M, Wallis M, Elsberger B, Goyal A. Axillary tumour burden in women with one abnormal node on ultrasound compared to women with multiple abnormal nodes. Clin Radiol 2018; 73:391-395. [DOI: 10.1016/j.crad.2017.12.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/14/2017] [Indexed: 11/27/2022]
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Bhalla AS, Das A, Naranje P, Goyal A, Guleria R, Khilnani GC. Author's Reply. Indian J Radiol Imaging 2018; 28:268-269. [PMID: 30050256 PMCID: PMC6038226 DOI: 10.4103/ijri.ijri_85_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Lopez MC, Goyal A, Manian DV, Pollak-Christian E, Vastardi M. P029 Anaphylaxis: impact of a targeted educational intervention on the knowledge and practices of pediatric residents. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Singh PP, Goyal M, Goyal A. Sialendoscopic Approach in Management of Juvenile Recurrent Parotitis. Indian J Otolaryngol Head Neck Surg 2017; 69:453-458. [PMID: 29238673 DOI: 10.1007/s12070-017-1223-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 10/06/2017] [Indexed: 11/29/2022] Open
Abstract
To assess the role of sialendoscopy as a diagnostic and therapeutic modality in juvenile recurrent parotitis. Juvenile recurrent parotitis (JRP) is the second most frequent salivary gland disease in childhood and is characterized by recurrent non suppurative and non obstructive parotid inflammation. These attacks influence the quality of life and can even lead to gland destruction, and there are no definitive treatment to avoid them. Sialendoscopic dilatation is emerging as the new treatment modality in this aspect. STUDY DESIGN retrospective study. STUDY SETTING Department of Otorhinolaryngology in tertiary care hospital. 17 cases of juvenile recurrent parotitis (i.e. children of age group 3-11 years presenting with complaints of recurrent parotid region swelling and pain, sometimes associated with fever) were included in the study during October 2012-September 2015. All cases underwent sialendoscopy under general anaesthesia. Diagnostic (classifying the ductal lesion) and interventional sialendoscopic procedure (dilatation with instillation of steroid) were carried out in single sitting. Follow up was done for a minimum of 6 months (range 6-36 months). 17 patients with mean age of 5.6 years and gender distribution of 47:53 (boys:girls) underwent sialendoscopy for JRP. 8 patients presented with unilateral parotitis and 9 with bilateral. The mean number of attacks in previous 1 year were 9.2. Average time for procedure was 20 min. All cases had ductal stenosis and ductal mucosa was pale in 15 cases on endoscopy. 1 patient underwent repeat endoscopy after 2 years. 50% had complete resolution of symptoms and 6 patients had one mild (swelling not associated with fever which subsided on its own) attack after treatment. Follow up period ranged from 6 months to 3 years. No complications were observed. Sialendoscopy has emerged as a viable option for assessment and treatment of JRP. Dilatation of the parotid duct and steroid instillation has significantly reduced the morbidity of this condition.
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Lloyd P, Theophilidou E, Newcombe RG, Pugh L, Goyal A. Axillary tumour burden in women with a fine-needle aspiration/core biopsy-proven positive node on ultrasonography compared to women with a positive sentinel node. Br J Surg 2017; 104:1811-1815. [DOI: 10.1002/bjs.10661] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/27/2017] [Accepted: 06/30/2017] [Indexed: 11/09/2022]
Abstract
Abstract
Background
The sensitivity of axillary ultrasonography (AUS) has increased in recent years, enabling detection of even low-volume axillary nodal metastases. The aim here was to evaluate the axillary tumour burden in women with a fine-needle aspiration/core biopsy-proven positive node on AUS and in those with a positive sentinel node biopsy (SNB).
Methods
This retrospective cohort study included all patients with early breast cancer who had AUS and axillary lymph node dissection (ALND) between 2011 and 2014.
Results
A total of 332 patients who had ALND were eligible for the study, 191 (57·5 per cent) in the AUS-positive group and 141 (42·5 per cent) in the SNB-positive group. Patients in the AUS-positive group were older at diagnosis (P = 0·018), more likely to have larger tumours (P = 0·002), higher tumour grade (P = 0·005), positive human epidermal growth factor 2 status (P = 0·015), and negative oestrogen receptor status (P < 0·001). The AUS-positive group also had a larger number of lymph nodes with macrometastases (P < 0·001) and were more likely to have extranodal invasion (P < 0·001). In the AUS-positive group, 40·3 per cent of patients (77 of 191) had only one or two nodes with macrometastases identified at histology after ALND. Tumour size no larger than 20 mm, invasive ductal or lobular histology and breast-conserving surgery were associated with the presence of two or fewer macrometastases at ALND. Only tumour size and tumour histology remained significant in multiple logistic regression analysis.
Conclusion
Patients with AUS-detected metastases had a higher axillary tumour burden than those with SNB-detected metastases. Around 40 per cent of patients with AUS-detected nodal disease had one or two nodes with macrometastases and were thus overtreated by ALND.
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Vishwakarma VK, Goyal A, Gupta JK, Upadhyay PK, Yadav HN. Involvement of atrial natriuretic peptide in abrogated cardioprotective effect of ischemic preconditioning in ovariectomized rat heart. Hum Exp Toxicol 2017; 37:704-713. [PMID: 28920462 DOI: 10.1177/0960327117730878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Nitric oxide (NO) is an effective mediator of ischemic preconditioning (IPC)-induced cardioprotection. Atrial natriuretic peptide (ANP) is downregulated after ovariectomy, which results in reduction in the level of NO. The present study deals with the investigation of the role of ANP in abrogated cardioprotective effect of IPC in the ovariectomized rat heart. METHODS Heart was isolated from ovariectomized rat and mounted on Langendorff's apparatus, subjected to 30 min of ischemia and 120 min of reperfusion. IPC was given by four cycles of 5 min of ischemia and 5 min of reperfusion with Krebs-Henseleit solution. The myocardial infract size was estimated employing triphenyltetrazolium chloride stain, and coronary effluent was analyzed for creatine kinase-MB (CK-MB) and lactate dehydrogenase (LDH) release to consider the degree of myocardial injury. The cardiac release of NO was estimated by measuring the level of nitrite in coronary effluent. RESULTS IPC-mediated cardioprotection was significantly attenuated in ovariectomized rat as compared to normal rat, which was restored by perfusion with ANP. However, this observed cardioprotection was significantly attenuated by perfusion with L-NAME, an endothelial nitric oxide synthase inhibitor, and Glibenclamide, a KATP channel blocker, alone or in combination noted in terms of increase in myocardial infract size, release of CK-MB and LDH, and also decrease in release of NO. CONCLUSION Thus, it is suggested that ANP restores the attenuated cardioprotective effect of IPC in the ovariectomized rat heart which may be due to increase in the availability of NO and consequent increase activation of mitochondrial KATP channels.
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Yung R, Ost D, Simoff M, Reddy C, Goyal A, Barjakarevic I, Garff M, Larson K, O'Driscoll J, Makani S. Baseline characteristics of participants in pl-208: A multi-center trial of the prolung test™ (Transthoracic Bioconductance Measurement) as an adjunct to CT chest scans for the risk stratification of patients with pulmonary lesions suspicious for lung cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx087.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Mitochondrial DNA (mtDNA) lacks the protection provided by the nucleosomes in the nuclear DNA and does not have a DNA repair mechanism, making it highly susceptible to damage, which can lead to mtDNA depletion. mtDNA depletion compromises the efficient function of cells and tissues and thus impacts negatively on health. Here, we describe a brief and easy protocol to quantify mtDNA copy number by determining the mtDNA/nDNA ratio. The procedure has been validated using a cohort of young and aged mice. © 2017 by John Wiley & Sons, Inc.
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Goyal A, Coleman RE, Dodwell D, Fallowfield L, Jenkins VA, Mann B, Reed MW. Abstract OT3-03-02: Maximising recruitment and retention of patients into UK-ANZ POSNOC trial. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-ot3-03-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The success of a clinical trial is often dependant on whether recruitment targets can be met in the required time frame. Surgeons want to gather robust evidence but may experience considerable discomfort in relation to their clinical instincts and concerns about patient eligibility and safety. The ongoing POSNOC study design is pragmatic to maximise recruitment. A patient information DVD is used as an adjunct to patient information leaflet. The protocol allows for either axillary radiotherapy or axillary node clearance. Here we report recruitment and retention of participants into POSNOC, the associated barriers and challenges, and various strategies employed to overcome these barriers.
A total of 368 participants were recruited till May 2016. A total of 90%(331) of participants were recruited via non intra-operative pathway, and 10%(37) from intra-operative pathway. The most common known reasons for non-participation of eligible women were - woman wanting axillary treatment and clinician/MDT deciding woman needs axillary treatment. The mean randomisation yield from screening was 30% (range 6 to 100%). The highest recruiting sites were Derby, Manchester, Oxford, Belfast and Bristol.
The screening logs identified barriers as: fewer than estimated eligible women, clinicians not offering trial to all eligible patients and patient acceptability.
To reach recruitment targets in a timely fashion, a multifaceted approach is being employed. a) Protocol amendments to widen the inclusion criteria, b) 250 patients to be recruited by Australia and New Zealand sites, c) additional 50 sites to be opened in the UK, d) encourage OSNA centres to follow the non intra-operative pathway, e) communication workshops, f) POSNOC poster in breast units to raise awareness, g) questionnaire survey - sites to identify local issues and their perceptions about recruitment, h) social media - POSNOC WhatsApp group i) newsletters and briefings, j) competitions, k) tips to maximise recruitment document that includes a template script of one way to introduce the study l) regional telephone conferences for research nurses, m) investigator meeting.
The success of these strategies remains to be assessed and shall be reported separately.
Citation Format: Goyal A, Coleman RE, Dodwell D, Fallowfield L, Jenkins VA, Mann B, Reed MW, POSNOC Trial Management Group. Maximising recruitment and retention of patients into UK-ANZ POSNOC trial [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT3-03-02.
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Gupta I, Goyal A, Singh NK, Yadav HN, Sharma PL. Hemin, a heme oxygenase-1 inducer, restores the attenuated cardioprotective effect of ischemic preconditioning in isolated diabetic rat heart. Hum Exp Toxicol 2016; 36:867-875. [PMID: 27738197 DOI: 10.1177/0960327116673169] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Attenuated cardioprotective effect of ischemic preconditioning (IPC) by reduced nitric oxide (NO) is a hallmark during diabetes mellitus (DM). Recently, we reported that the formation of caveolin-endothelial nitric oxide synthase (eNOS) complex decreases the release of NO, which is responsible for attenuation of IPC-induced cardioprotection in DM rat heart. Heme oxygenase-1 (HO-1) facilitates release of NO by disrupting caveolin-eNOS complex. The activity of HO-1 is decreased during DM. This study was designed to investigate the role of hemin (HO-1 inducer) in attenuated cardioprotective effect of IPC in isolated diabetic rat heart. METHODS DM was induced in male Wistar rat by single dose of streptozotocin. Cardioprotective effect was assessed in terms of myocardial infarct size and release of lactate dehydrogenase and creatine kinase in coronary effluent. The release of NO was estimated indirectly by measuring the release of nitrite in coronary effluent. Perfusion of sodium nitrite, a precursor of NO, was used as a positive control. RESULT IPC-induced cardioprotection and increased release of nitrite were significantly attenuated in a diabetic rat as compared to a normal rat. Pretreatment with hemin and daidzein, a caveolin inhibitor, alone or in combination significantly restored the attenuated cardioprotection and increased the release of nitrite in diabetic rat heart. Zinc protoporphyrin, a HO-1 inhibitor, significantly abolished the observed cardioprotection and decreased the release of nitrite in hemin pretreated DM rat heart. CONCLUSION Thus, it is suggested that hemin restores the attenuated cardioprotective effect in diabetic rat heart by increasing the activity of HO-1 and subsequently release of NO.
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Abdalla H, Abramowski A, Aharonian F, Ait Benkhali F, Akhperjanian AG, Andersson T, Angüner EO, Arrieta M, Aubert P, Backes M, Balzer A, Barnard M, Becherini Y, Becker Tjus J, Berge D, Bernhard S, Bernlöhr K, Birsin E, Blackwell R, Böttcher M, Boisson C, Bolmont J, Bordas P, Bregeon J, Brun F, Brun P, Bryan M, Bulik T, Capasso M, Carr J, Casanova S, Chakraborty N, Chalme-Calvet R, Chaves RCG, Chen A, Chevalier J, Chrétien M, Colafrancesco S, Cologna G, Condon B, Conrad J, Couturier C, Cui Y, Davids ID, Degrange B, Deil C, Devin J, deWilt P, Djannati-Ataï A, Domainko W, Donath A, Drury LO, Dubus G, Dutson K, Dyks J, Dyrda M, Edwards T, Egberts K, Eger P, Ernenwein JP, Eschbach S, Farnier C, Fegan S, Fernandes MV, Fiasson A, Fontaine G, Förster A, Funk S, Füßling M, Gabici S, Gajdus M, Gallant YA, Garrigoux T, Giavitto G, Giebels B, Glicenstein JF, Gottschall D, Goyal A, Grondin MH, Grudzińska M, Hadasch D, Hahn J, Hawkes J, Heinzelmann G, Henri G, Hermann G, Hervet O, Hillert A, Hinton JA, Hofmann W, Hoischen C, Holler M, Horns D, Ivascenko A, Jacholkowska A, Jamrozy M, Janiak M, Jankowsky D, Jankowsky F, Jingo M, Jogler T, Jouvin L, Jung-Richardt I, Kastendieck MA, Katarzyński K, Katz U, Kerszberg D, Khélifi B, Kieffer M, King J, Klepser S, Klochkov D, Kluźniak W, Kolitzus D, Komin N, Kosack K, Krakau S, Kraus M, Krayzel F, Krüger PP, Laffon H, Lamanna G, Lau J, Lees JP, Lefaucheur J, Lefranc V, Lemière A, Lemoine-Goumard M, Lenain JP, Leser E, Liu R, Lohse T, Lorentz M, Lypova I, Marandon V, Marcowith A, Mariaud C, Marx R, Maurin G, Maxted N, Mayer M, Meintjes PJ, Meyer M, Mitchell AMW, Moderski R, Mohamed M, Morå K, Moulin E, Murach T, de Naurois M, Niederwanger F, Niemiec J, Oakes L, O'Brien P, Odaka H, Ohm S, Ostrowski M, Öttl S, Oya I, Padovani M, Panter M, Parsons RD, Paz Arribas M, Pekeur NW, Pelletier G, Perennes C, Petrucci PO, Peyaud B, Pita S, Poon H, Prokhorov D, Prokoph H, Pühlhofer G, Punch M, Quirrenbach A, Raab S, Reimer A, Reimer O, Renaud M, de Los Reyes R, Rieger F, Romoli C, Rosier-Lees S, Rowell G, Rudak B, Rulten CB, Sahakian V, Salek D, Sanchez DA, Santangelo A, Sasaki M, Schlickeiser R, Schüssler F, Schulz A, Schwanke U, Schwemmer S, Settimo M, Seyffert AS, Shafi N, Shilon I, Simoni R, Sol H, Spanier F, Spengler G, Spies F, Stawarz Ł, Steenkamp R, Stegmann C, Stinzing F, Stycz K, Sushch I, Tavernet JP, Tavernier T, Taylor AM, Terrier R, Tibaldo L, Tluczykont M, Trichard C, Tuffs R, van der Walt J, van Eldik C, van Soelen B, Vasileiadis G, Veh J, Venter C, Viana A, Vincent P, Vink J, Voisin F, Völk HJ, Vuillaume T, Wadiasingh Z, Wagner SJ, Wagner P, Wagner RM, White R, Wierzcholska A, Willmann P, Wörnlein A, Wouters D, Yang R, Zabalza V, Zaborov D, Zacharias M, Zdziarski AA, Zech A, Zefi F, Ziegler A, Żywucka N. H.E.S.S. Limits on Linelike Dark Matter Signatures in the 100 GeV to 2 TeV Energy Range Close to the Galactic Center. PHYSICAL REVIEW LETTERS 2016; 117:151302. [PMID: 27768338 DOI: 10.1103/physrevlett.117.151302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Indexed: 06/06/2023]
Abstract
UNLABELLED A search for dark matter linelike signals iss performed in the vicinity of the Galactic Center by the H.E.S.S. experiment on observational data taken in 2014. An unbinned likelihood analysis iss developed to improve the sensitivity to linelike signals. The upgraded analysis along with newer data extend the energy coverage of the previous measurement down to 100 GeV. The 18 h of data collected with the H.E.S.S. array allow one to rule out at 95% C.L. the presence of a 130 GeV line (at l=-1.5°, b=0° and for a dark matter profile centered at this location) previously reported in Fermi-LAT data. This new analysis overlaps significantly in energy with previous Fermi-LAT and H.E.S.S. RESULTS No significant excess associated with dark matter annihilations was found in the energy range of 100 GeV to 2 TeV and upper limits on the gamma-ray flux and the velocity weighted annihilation cross section are derived adopting an Einasto dark matter halo profile. Expected limits for present and future large statistics H.E.S.S. observations are also given.
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Joshi MD, Goyal A, Patil SM, Goyal RK. Tribological and thermal properties of hexagonal boron nitride filled high-performance polymer nanocomposites. J Appl Polym Sci 2016. [DOI: 10.1002/app.44409] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abdallah H, Abramowski A, Aharonian F, Ait Benkhali F, Akhperjanian AG, Angüner E, Arrieta M, Aubert P, Backes M, Balzer A, Barnard M, Becherini Y, Becker Tjus J, Berge D, Bernhard S, Bernlöhr K, Birsin E, Blackwell R, Böttcher M, Boisson C, Bolmont J, Bordas P, Bregeon J, Brun F, Brun P, Bryan M, Bulik T, Capasso M, Carr J, Casanova S, Chakraborty N, Chalme-Calvet R, Chaves RCG, Chen A, Chevalier J, Chrétien M, Colafrancesco S, Cologna G, Condon B, Conrad J, Couturier C, Cui Y, Davids ID, Degrange B, Deil C, deWilt P, Djannati-Ataï A, Domainko W, Donath A, Drury LO, Dubus G, Dutson K, Dyks J, Dyrda M, Edwards T, Egberts K, Eger P, Ernenwein JP, Eschbach S, Farnier C, Fegan S, Fernandes MV, Fiasson A, Fontaine G, Förster A, Funk S, Füßling M, Gabici S, Gajdus M, Gallant YA, Garrigoux T, Giavitto G, Giebels B, Glicenstein JF, Gottschall D, Goyal A, Grondin MH, Grudzińska M, Hadasch D, Hahn J, Hawkes J, Heinzelmann G, Henri G, Hermann G, Hervet O, Hillert A, Hinton JA, Hofmann W, Hoischen C, Holler M, Horns D, Ivascenko A, Jacholkowska A, Jamrozy M, Janiak M, Jankowsky D, Jankowsky F, Jingo M, Jogler T, Jouvin L, Jung-Richardt I, Kastendieck MA, Katarzyński K, Katz U, Kerszberg D, Khélifi B, Kieffer M, King J, Klepser S, Klochkov D, Kluźniak W, Kolitzus D, Komin N, Kosack K, Krakau S, Kraus M, Krayzel F, Krüger PP, Laffon H, Lamanna G, Lau J, Lees JP, Lefaucheur J, Lefranc V, Lemière A, Lemoine-Goumard M, Lenain JP, Leser E, Lohse T, Lorentz M, Lui R, Lypova I, Marandon V, Marcowith A, Mariaud C, Marx R, Maurin G, Maxted N, Mayer M, Meintjes PJ, Menzler U, Meyer M, Mitchell AMW, Moderski R, Mohamed M, Morå K, Moulin E, Murach T, de Naurois M, Niederwanger F, Niemiec J, Oakes L, Odaka H, Ohm S, Öttl S, Ostrowski M, Oya I, Padovani M, Panter M, Parsons RD, Paz Arribas M, Pekeur NW, Pelletier G, Petrucci PO, Peyaud B, Pita S, Poon H, Prokhorov D, Prokoph H, Pühlhofer G, Punch M, Quirrenbach A, Raab S, Reimer A, Reimer O, Renaud M, de Los Reyes R, Rieger F, Romoli C, Rosier-Lees S, Rowell G, Rudak B, Rulten CB, Sahakian V, Salek D, Sanchez DA, Santangelo A, Sasaki M, Schlickeiser R, Schüssler F, Schulz A, Schwanke U, Schwemmer S, Seyffert AS, Shafi N, Simoni R, Sol H, Spanier F, Spengler G, Spieß F, Stawarz L, Steenkamp R, Stegmann C, Stinzing F, Stycz K, Sushch I, Tavernet JP, Tavernier T, Taylor AM, Terrier R, Tluczykont M, Trichard C, Tuffs R, van der Walt J, van Eldik C, van Soelen B, Vasileiadis G, Veh J, Venter C, Viana A, Vincent P, Vink J, Voisin F, Völk HJ, Vuillaume T, Wadiasingh Z, Wagner SJ, Wagner P, Wagner RM, White R, Wierzcholska A, Willmann P, Wörnlein A, Wouters D, Yang R, Zabalza V, Zaborov D, Zacharias M, Zdziarski AA, Zech A, Zefi F, Ziegler A, Żywucka N. Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with H.E.S.S. PHYSICAL REVIEW LETTERS 2016; 117:111301. [PMID: 27661677 DOI: 10.1103/physrevlett.117.111301] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Indexed: 06/06/2023]
Abstract
The inner region of the Milky Way halo harbors a large amount of dark matter (DM). Given its proximity, it is one of the most promising targets to look for DM. We report on a search for the annihilations of DM particles using γ-ray observations towards the inner 300 pc of the Milky Way, with the H.E.S.S. array of ground-based Cherenkov telescopes. The analysis is based on a 2D maximum likelihood method using Galactic Center (GC) data accumulated by H.E.S.S. over the last 10 years (2004-2014), and does not show any significant γ-ray signal above background. Assuming Einasto and Navarro-Frenk-White DM density profiles at the GC, we derive upper limits on the annihilation cross section ⟨σv⟩. These constraints are the strongest obtained so far in the TeV DM mass range and improve upon previous limits by a factor 5. For the Einasto profile, the constraints reach ⟨σv⟩ values of 6×10^{-26} cm^{3} s^{-1} in the W^{+}W^{-} channel for a DM particle mass of 1.5 TeV, and 2×10^{-26} cm^{3} s^{-1} in the τ^{+}τ^{-} channel for a 1 TeV mass. For the first time, ground-based γ-ray observations have reached sufficient sensitivity to probe ⟨σv⟩ values expected from the thermal relic density for TeV DM particles.
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Silay MS, Spinoit AF, Undre S, Fiala V, Tandogdu Z, Garmanova T, Guttilla A, Sancaktutar AA, Haid B, Waldert M, Goyal A, Serefoglu EC, Baldassarre E, Manzoni G, Radford A, Subramaniam R, Cherian A, Hoebeke P, Jacobs M, Rocco B, Yuriy R, Zattoni F, Kocvara R, Koh CJ. Global minimally invasive pyeloplasty study in children: Results from the Pediatric Urology Expert Group of the European Association of Urology Young Academic Urologists working party. J Pediatr Urol 2016; 12:229.e1-7. [PMID: 27346071 DOI: 10.1016/j.jpurol.2016.04.007] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/24/2016] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Minimally invasive pyeloplasty (MIP) for ureteropelvic junction (UPJ) obstruction in children has gained popularity over the past decade as an alternative to open surgery. The present study aimed to identify the factors affecting complication rates of MIP in children, and to compare the outcomes of laparoscopic (LP) and robotic-assisted laparoscopic pyeloplasty (RALP). MATERIALS AND METHODS The perioperative data of 783 pediatric patients (<18 years old) from 15 academic centers who underwent either LP or RALP with an Anderson Hynes dismembered pyeloplasty technique were retrospectively evaluated. Redo cases and patients with anatomic renal abnormalities were excluded. Demographics and operative data, including procedural factors, were collected. Complications were classified according to the Satava and modified Clavien systems. Failure was defined as any of the following: obstructive parameters on diuretic renal scintigraphy, decline in renal function, progressive hydronephrosis, or symptom relapse. Univariate and multivariate analysis were applied to identify factors affecting the complication rates. All parameters were compared between LP and RALP. RESULTS A total of 575 children met the inclusion criteria. Laparoscopy, increased operative time, prolonged hospital stay, ureteral stenting technique, and time required for stenting were factors influencing complication rates on univariate analysis. None of those factors remained significant on multivariate analysis. Mean follow-up was 12.8 ± 9.8 months for RALP and 45.2 ± 33.8 months for LP (P = 0.001). Hospital stay and time for stenting were shorter for robotic pyeloplasty (P < 0.05 for both). Success rates were similar between RALP and LP (99.5% vs 97.3%, P = 0.11). The intraoperative complication rate was comparable between RALP and LP (3.8% vs 7.4%, P = 0.06). However, the postoperative complication rate was significantly higher in the LP group (3.2% for RALP and 7.7% for LP, P = 0.02). All complications were of no greater severity than Satava Grade IIa and Clavien Grade IIIb. DISCUSSION This was the largest multicenter series of LP and RALP in the pediatric population. Limitations of the study included the retrospective design and lack of surgical experience as a confounder. CONCLUSIONS Both minimally invasive approaches that were studied were safe and highly effective in treating UPJ obstruction in children in many centers globally. However, shorter hospitalization time and lower postoperative complication rates with RALP were noted. The aims of the study were met.
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Moorthy A, Crawford G, Wade A, Goyal A. OP0145 An Evaluation of Inflammatory Back Pain in The Community – A Novel Way of Using Social Media (Facebook). Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Moorthy A, Wade A, Crawford G, Goyal A. FRI0408 A Twelve Month Follow-Up Study of Patients Recruited through Social Media Who Fulfilled ASAS/Calin Criteria for Inflammatory Back Pain. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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