Friday, March 29, 2019

Suicidal ideation and suicide attempts in subjects aged 15–19 in Lomé (Togo) | BMC Research Notes | Full Text

Suicidal ideation and suicide attempts in subjects aged 15–19 in Lomé (Togo) | BMC Research Notes | Full Text

BMC Research Notes

Suicidal ideation and suicide attempts in subjects aged 15–19 in Lomé (Togo)

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BMC Research Notes201912:187
  • Received: 13 March 2019
  • Accepted: 26 March 2019
  • Published: 

Abstract

Objectives

The purpose of this study was to study the epidemiological and clinical profile of adolescents with suicidal thoughts, with or without suicide attempts, and to identify associated factors.

Results

A total of 155 (16.5%) of the 941 adolescents interviewed had suicidal thoughts. The average age of the respondents was 18 ± 2.1 years. The sex ratio (m/f) was 1.4. With regard to marital status, 70.2% were single and 29.8% were in a relationship with a cohabiting partner. Family history of suicide was reported in 40%. In their personal history, eight were infected with HIV, three were chronic ethylic and two were diabetics. Forty-six (29.7%) of the 155 adolescents who had suicidal ideation had ever had a suicide attempt. Teens affected by suicide lived in a boarding school in 25.8%, with one parent in 23.9% and 50.3% with both parents. Factors associated with suicide attempts were female sex (p = 0.0107), age over 18 years (p = 0.0177), living in a couple (p = 0.0316), underlying immunodepression (HIV infection, p = 0.0059, sickle cell disease, p = 0.0043) and having a family history of suicides (p = 0.0461).

Keywords

  • Suicides
  • Adolescents
  • Lomé (Togo)

Novel binding partners for Prenylated Rab Acceptor 1 identified by a split-ubiquitin yeast two-hybrid screen | BMC Research Notes | Full Text

Novel binding partners for Prenylated Rab Acceptor 1 identified by a split-ubiquitin yeast two-hybrid screen | BMC Research Notes | Full Text



BMC Research Notes

Novel binding partners for Prenylated Rab Acceptor 1 identified by a split-ubiquitin yeast two-hybrid screen

BMC Research Notes201912:188
  • Received: 4 February 2019
  • Accepted: 25 March 2019
  • Published: 

Abstract

Objective

Prenylated Rab Acceptor 1 (PRA1) is a transmembrane protein localized to the early secretory pathway. It has been found to interact with an array of Rab GTPases, leading to its hypothesized function in the recycling of Rab GTPases. However, all previous strategies used to screen for novel interacting partners have utilized a classic yeast two-hybrid approach that requires both bait and its potential binding partners to be cytosolic proteins. In the split-ubiquitin yeast two-hybrid screen, a protein interaction leads to the re-constitution of ubiquitin, which is followed by proteolytic release of a transcription activator that migrates to the nucleus alone. This allows for bait and/or prey to be integral membrane protein(s). To better understand the in vivo function of PRA1, we took an unbiased approach that screened PRA1 against a normalized mouse neuronal cDNA library using this variant of the classic screening strategy.

Results

We report 41 previously unidentified potential PRA1 binding partners revealed by this screen and validate the screen by confirming three of these interactions using a bi-molecular fluorescence complementation assay in mammalian cells. The identified proteins reside throughout the secretory pathway and are both membrane-bound and cytosolic in their identity, suggesting alternative functions for PRA1.

Keywords

  • PRA1
  • Rabac1
  • Yip3
  • Split-ubiquitin yeast two-hybrid screen
  • Photoreceptor
  • Mouse
  • Protein interaction

Comparative efficacy of six therapies for Hypopharyngeal and laryngeal neoplasms: a network meta-analysis | BMC Cancer | Full Text

Comparative efficacy of six therapies for Hypopharyngeal and laryngeal neoplasms: a network meta-analysis | BMC Cancer | Full Text



BMC Cancer

Comparative efficacy of six therapies for Hypopharyngeal and laryngeal neoplasms: a network meta-analysis

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BMC Cancer201919:282
  • Received: 28 December 2017
  • Accepted: 27 February 2019
  • Published: 
Open Peer Review reports

Abstract

Background

Hypopharyngeal and laryngeal neoplasms are both fatal and hard to catch in early stages. Yet which treatment is the most efficacious one still remain unanswered. This network meta-analysis (NMA) was conducted to investigate effectiveness of six therapies being utilized in clinical practice nowadays.

Methods

PubMed and Embase were retrieved to synthesize data. Direct and indirect evidence was combined to compare efficacy of treatments. A relative ranking of the six regimens was calculated by the surface under the curve ranking area (SUCRA).

Results

A total of 28 trials with 9109 patients were included in our NMA. Five endpoints investigated included 3/5-year overall survival (3/5-OS), 3/5-year disease free survival (3/5-DFS) and 5-year overall survival rate (5-OSR). In terms of all efficacy outcomes, radiotherapy combined with surgery (RT + S) proved to be better than other therapies while radiotherapy (RT) alone also performed well. Induction chemoradiotherapy (ICRT) was the best regarding 3-DFS (SUCRA = 0.846) while current chemoradiotherapy (CCRT) ranked first in 5-DFS (SUCRA = 0.933) according to SUCRA results. No significant differences were demonstrated in 5-DFS and 5-OSR as shown in the results of NMA.

Conclusions

RT combined with surgery turned out to be optimal therapy of all the outcomes while the efficacy of RT was relatively poorer in the treatment of patients with larynx stage III-IV and hypopharynx stage II-IV. Also, the good performance of CCRT and ICRT in terms of DFS made them as secondary recommended therapies. There is no significant difference between surgery and transoral laser microsurgery (TLM) alone.

Keywords

  • Hypopharyngeal neoplasm
  • Laryngeal neoplasm
  • Efficacy
  • Network meta-analysis

A lung cancer patient with deep vein thrombosis:a case report and literature review | BMC Cancer | Full Text

A lung cancer patient with deep vein thrombosis:a case report and literature review | BMC Cancer | Full Text



BMC Cancer

A lung cancer patient with deep vein thrombosis:a case report and literature review

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BMC Cancer201919:285
  • Received: 12 November 2018
  • Accepted: 25 March 2019
  • Published: 
Open Peer Review reports

Abstract

Background

Venous thromboembolism (VTE) is a common problem in cancer patients and the incidence is increasing, especially for patients with lung cancer. Common features of these patients, like advanced stage, male gender, old age and chemotherapy, are risk factors of VTE. Here we reported a case in which the patient with lung cancer developed deep vein thrombosis (DVT) when receiving chemotherapy.

Case presentation

A 53-year-old male who was diagnosed with lung cancer with multiple metastasis developed severe DVT during chemotherapy. Despite the use of aspirin, warfarin and low molecular weight heparin (LMWH) for anticoagulant and thrombolytic therapy, the condition was still deteriorating, resulting in amputation finally.

Conclusions

It’s rare that the conditions of cancer patients who develop venous thromboembolism (VTE) keep deteriorating despite the administration of aspirin, warfarin and low weight molecular heparin. Both early diagnosis and prophylactic use of anticoagulants are suggested for cancer patients to improve the prognosis.

Keywords

  • Case report
  • Deep venous thrombosis
  • Lung cancer
  • Chemotherapy

Late presentation of hepatitis B among patients with newly diagnosed hepatocellular carcinoma: a national cohort study | BMC Cancer | Full Text

Late presentation of hepatitis B among patients with newly diagnosed hepatocellular carcinoma: a national cohort study | BMC Cancer | Full Text



BMC Cancer

Late presentation of hepatitis B among patients with newly diagnosed hepatocellular carcinoma: a national cohort study

Contributed equally
BMC Cancer201919:286
  • Received: 12 September 2018
  • Accepted: 22 March 2019
  • Published: 
Open Peer Review reports

Abstract

Background

Recently, the concept of “late presentation with viral hepatitis” was introduced to help quantify the proportion of patients missing timely diagnosis and treatment for viral hepatitis. The clinical implications of late presentation of hepatitis B at the population level, however, are largely unexplored.

Methods

Using newly-diagnosed hepatitis B related hepatocellular carcinoma (HCC) patients (N = 1276) from the Korean National Health Insurance Service-National Sample Cohort, a nationally representative cohort study was conducted between 2002 and 2013. HCC patients were classified into 3 groups: late presentation of hepatitis B (no prior clinic visits for hepatitis B before HCC diagnosis), irregular visits (irregular pattern of outpatient clinic visits), and regular visits (regular pattern of outpatient clinic visits).

Results

The proportion of patients with late presentation decreased from 50.8% in 2003 to 23.1% in 2013. In multivariable analysis compared with patients in the regular visits group, patients with late presentation were more likely to be younger and to be in lower income percentiles. After adjusting for age, sex, year of HCC diagnosis, income percentile, and initial treatment, the hazard ratios (95% confidence intervals) for all-cause mortality comparing the late presentation and irregular visits groups to the regular visits group were 1.76 (1.42–2.18) and 1.31 (1.06–1.61), respectively.

Conclusion

Timely diagnosis and treatment for hepatitis B related HCC was suboptimal at the population level. More intensive strategies to minimize late presentation for hepatitis B are needed, with special attention to younger people and lower income levels.

Keywords

  • Hepatitis B
  • Hepatocellular carcinoma
  • Late presentation
  • Mortality

Age-adjusted high-dose chemotherapy and autologous stem cell transplant in elderly and fit primary CNS lymphoma patients | BMC Cancer | Full Text

Age-adjusted high-dose chemotherapy and autologous stem cell transplant in elderly and fit primary CNS lymphoma patients | BMC Cancer | Full Text

BMC Cancer

Age-adjusted high-dose chemotherapy and autologous stem cell transplant in elderly and fit primary CNS lymphoma patients

BMC Cancer201919:287
  • Received: 25 January 2019
  • Accepted: 14 March 2019
  • Published: 
Open Peer Review reports

Abstract

Background

Primary central nervous system lymphoma (PCNSL) is a diffuse large B-cell lymphoma (DLBCL) confined to the central nervous system (CNS) with rising incidence among patients > 65 years. Although elderly patients are able to tolerate aggressive systemic chemotherapy, previous studies have demonstrated inferior outcomes for patients who present with a poor performance status (PS) and older age. Usually, intensive treatment approaches including high-dose chemotherapy followed by autologous stem cell transplantation (HDT-ASCT) are only offered to patients younger than 65–70 years of age.

Methods

This is an open-label, multicentric, non-randomized, single arm phase II trial. We will recruit 51 immuno-competent patients with newly diagnosed PCNSL from 12 German centers. The objective is to investigate the efficacy of age-adapted induction treatment followed by HDT-ASCT. All enrolled patients will undergo induction chemotherapy consisting of 2 cycles of rituximab 375 mg/m2/d (days 0 & 4), methotrexate 3.5 g/m2 (d1), and cytarabine 2 × 2 g/m2/d (d2–3) every 21 days. After 2 cycles of induction chemotherapy, patients achieving at least stable disease will undergo HDT-ASCT with busulfan 3.2 mg/kg/d (days − 7-(− 6)) and thiotepa 5 mg/kg/d (days − 5-(− 4)) followed by autologous stem cell transplantation. The primary endpoint of this study is 1-year progression-free survival (PFS). Secondary endpoints include PFS, overall survival, treatment response and treatment-related morbidities. Minimal follow-up after treatment completion is 12 months.

Discussion

Current treatment options for PCNSL have improved over the last years, resulting in the potential to achieve durable remission or cure in patients < 70 years. Age alone may not be the only criterion to select patients for this effective treatment approach and probably many elderly patients are undertreated just because of advanced age. There have been no multicentre trials investigating this curative treatment concept in elderly and fit PCNSL patients so far. We aim to answer whether HDT-ASCT is feasible and effective in fit patients > 65 years with newly-diagnosed PCNSL.

Trial registration

German clinical trials registry DRKS00011932 registered 18 August 2017.

Keywords

  • Primary central nervous system lymphoma (PCNSL)
  • High-dose chemotherapy (HDT)
  • Autologous stem cell transplantation (ASCT)
  • Elderly patients