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- Joona, Therse Björkin, et al.
(author)
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Influenza vaccination in breast cancer patients during subcutaneous trastuzumab in adjuvant setting
- 2020
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In: Breast Cancer Research and Treatment. - : Springer. - 0167-6806 .- 1573-7217. ; 184:1, s. 45-52
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Journal article (peer-reviewed)abstract
- Background: Despite the current recommendation for influenza vaccination in cancer patients with active oncological therapy, limited data are available on the efficacy of vaccination in cancer patients receiving targeted therapies. We aimed to investigate the immunogenicity and tolerability of influenza vaccination in breast cancer patients treated with trastuzumab in adjuvant setting.Methods: A prospective open-label multicenter study was performed including patients with breast cancer during trastuzumab treatment in adjuvant setting and healthy controls. Blood samples were taken before, 4 weeks after, and 12 weeks after a single dose of trivalent influenza vaccine containing inactivated A/California/7/2009 (H1N1) pdm09, A/Hongkong4801/2014 (H3N2), and B/Brisbane/60/2008. Levels of serum antibody titers to hemagglutinin for H1N1 and influenza B strains were measured.Results: Twenty breast cancer patients and 37 controls were included in the study. No difference in seroprotection rate between trastuzumab-treated patients and controls was observed for either H1N1 (100% in both groups) or B strain (78.9% vs. 89.2%,pvalue = 0.423). A statistically significant increase in geometric mean titers from baseline was seen in both groups and was evident both 4 weeks and 12 weeks after vaccination. Adverse events in the trastuzumab-treated group were uncommon and mild with only one serious adverse event not related to vaccination.Conclusion: Breast cancer patients treated with trastuzumab in adjuvant setting seem to benefit from influenza vaccination in terms of immunogenicity without increasing the risk for adverse events. The current data support the recommendation to offer influenza vaccination in breast cancer patients treated with this type of targeted therapy.
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| 2. |
- Muslimovic, Aida, et al.
(author)
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Novel clearance of muscle proteins by muscle cells
- 2020
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In: European Journal of Cell Biology. - : Elsevier BV. - 0171-9335 .- 1618-1298. ; 99:8
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Journal article (peer-reviewed)abstract
- Blood levels of cardiac troponins (cTn) and myoglobin are analysed when myocardial infarction (MI) is suspected. Here we describe a novel clearance mechanism for muscle proteins by muscle cells. The complete plasma clearance profile of cTn and myoglobin was followed in rats after intravenous or intermuscular injections and analysed by PET and fluorescence microscopy of muscle biopsies and muscle cells. Compared with intravenous injections, only 5 % of cTnT, 0.6 % of cTnI and 8 % of myoglobin were recovered in the circulation following intramuscular injection. In contrast, 47 % of the renal filtration marker FITC-sinistrin and 81 % of cTn fragments from MI-patients were recovered after intramuscular injection. In addition, PET and biopsy analysis revealed that cTn was taken up by the quadriceps muscle and both cTn and myoglobin were endocytosed by cultured muscle cells. This local clearance mechanism could possibly be the dominant clearance mechanism for cTn, myoglobin and other muscle damage biomarkers released by muscle cells.
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| 3. |
- Muslimovic, Aida, et al.
(author)
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The Liver and Kidneys mediate clearance of cardiac troponin in the rat
- 2020
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In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322 .- 2045-2322. ; 10:1
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Journal article (peer-reviewed)abstract
- Cardiac-specific troponins (cTn), troponin T (cTnT) and troponin I (cTnI) are diagnostic biomarkers when myocardial infarction is suspected. Despite its clinical importance it is still not known how cTn is cleared once it is released from damaged cardiac cells. The aim of this study was to examine the clearance of cTn in the rat. A cTn preparation from pig heart was labeled with fluorescent dye or fluorine 18 (18 F). The accumulation of the fluorescence signal using organ extracts, or the 18 F signal using positron emission tomography (PET) was examined after a tail vein injection. The endocytosis of fluorescently labeled cTn was studied using a mouse hepatoma cell line. Close to 99% of the cTnT and cTnI measured with clinical immunoassays were cleared from the circulation two hours after a tail vein injection. The fluorescence signal from the fluorescently labeled cTn preparation and the radioactivity from the 18F-labeled cTn preparation mainly accumulated in the liver and kidneys. The fluorescently labeled cTn preparation was efficiently endocytosed by mouse hepatoma cells. In conclusion, we find that the liver and the kidneys are responsible for the clearance of cTn from plasma in the rat.
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| 4. |
- Nyström, Karin, 1978-, et al.
(author)
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A systematic review of population-based studies on metachronous metastases of colorectal cancer
- 2024
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In: World Journal of Surgery. - : Springer. - 0364-2313 .- 1432-2323. ; 48:6, s. 1521-1533
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Research review (peer-reviewed)abstract
- BACKGROUND: The occurrence of metachronous metastases (MM) of colorectal (CRC), colon (CC), and rectal (RC) cancer of population-based studies has not been compiled in a systematic review previously.METHODS: MEDLINE, Embase, and Cochrane Library were searched for primary studies of any design from inception until January 2021 and updated in August 2023 (CRD42021261648). The PRISMA guidelines were adopted, and the Newcastle-Ottawa Quality Assessment Scale used for risk of bias assessment. Outcomes on overall and organ-specific MM were extracted. A narrative analysis followed.RESULTS: Out of 2143 unique hits, 162 publications were read in full-text and 37 population-based cohort studies published in 1981-2022 were included. Ten studies adopted time-dependent analyses; eight were registry-based and seven had a low risk of bias. Three studies reported 5-year recurrence rate of MM overall of stages I-III; for CRC, it was 20.5%, for CC, it was 18% and 25.6%, and for RC, it was 23%. Four studies reported 5-year recurrence rate of organ-specific MM of stages I-III-for CRC, it was 2.2% and 5.5% for peritoneal metastases and 5.8% for lung metastases and for CC 4.5% for peritoneal metastases. Twenty-seven studies reported proportions of patients diagnosed with MM, but data on the length of follow-up was incomplete and varied widely. Proportions of patients with CRC stages I-III that developed MM overall was 14.4%-26.1% in 10 studies. In relation to the enrollment period, a downward trend may be discernible.CONCLUSION: Studies adopting a more appropriate analysis were highly heterogeneous, whereas uncertain data of partly inadequate studies may indicate that MM are overall declining.
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| 5. |
- Wadensten, Towe, et al.
(author)
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A Mobile App for Self-management of Urgency and Mixed Urinary Incontinence in Women : Randomized Controlled Trial
- 2021
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In: Journal of Medical Internet Research. - : JMIR Publications. - 1438-8871. ; 23:4
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Journal article (peer-reviewed)abstract
- BACKGROUND: Many women experience urgency (UUI) and mixed (MUI) urinary incontinence but commonly hesitate to seek care. Treatment access and self-management for these conditions can be supported through eHealth approaches.OBJECTIVE: This study aimed to investigate the efficacy of the mobile app Tät II for self-management of UUI and MUI in women.METHODS: This randomized controlled trial included women ≥18 years old with UUI or MUI and ≥2 leakages per week. Those with red-flag symptoms were excluded. Participants were recruited via analog and digital advertisements and screened for initial selection through a web-based questionnaire. Data were collected using another questionnaire and a 2-day bladder diary. A telephone interview confirmed the symptom diagnosis. Participants were randomized (1:1) to receive access to a treatment app (including pelvic floor muscle training, bladder training, psychoeducation, lifestyle advice, tailored advice, exercise log, reinforcement messages, and reminders) or an information app (control group), with no external treatment guidance provided. The primary outcome was incontinence symptoms at the 15-week follow-up, measured using the International Consultation on Incontinence Questionnaire (ICIQ)-Urinary Incontinence Short Form (ICIQ-UI SF). Urgency symptoms were assessed using the ICIQ-Overactive Bladder Module (ICIQ-OAB) and quality of life using the ICIQ-Lower Urinary Tract Symptoms Quality of Life Module (ICIQ-LUTSqol). Incontinence episode frequency (IEF) was calculated per bladder diary entries. Improvement was measured using the Patient's Global Impression of Improvement. All outcomes were self-reported. Cure was defined as no leakages per the bladder diary. Intention-to-treat analysis was performed.RESULTS: Between April 2017 and March 2018, 123 women (mean age 58.3, SD 9.6 years) were randomized to the treatment (n=60, 2 lost to follow-up) or information (n=63) group. Of these, 35 (28%) women had UUI, and 88 (72%) had MUI. Mean ICIQ-UI SF score at follow-up was lower in the treatment group than in the information group (estimated difference -3.1, 95% CI -4.8 to -1.3). The estimated between-group difference was -1.8 (95% CI -2.8 to -0.99) for mean ICIQ-OAB score and -6.3 (95% CI -10.5 to -2.1) for the mean ICIQ-LUTSqol score at follow-up. IEF reduction from baseline to follow-up was greater in the treatment group (-10.5, IQR -17.5 to -3.5) than in the information group (P<.001). Improvement was reported by 87% (52/60) of treatment group participants and by 30% (19/63) of information group participants. The cure rate was 32% in the treatment group, and 6% in the information group (odds ratio 5.4, 95% CI 1.9-15.6; P=.002). About 67% (40/60) of the treatment group participants used the app more than thrice a week.CONCLUSIONS: The treatment app was effective for improving urgency and mixed incontinence in women. When self-management is appropriate, this app may be a good alternative to pharmacological treatment or other conservative management, thus increasing access to care.TRIAL REGISTRATION: ClinicalTrials.gov NCT03097549; https://clinicaltrials.gov/ct2/show/NCT03097549.
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