Food worry and mental health outcomes during the COVID-19 pandemic.

BACKGROUND: There is limited and inconsistent literature examining the relationship between food worry and mental health in the context of the COVID-19 pandemic. This study examined the association between food worry and mental health among community dwelling Canadian adults during the COVID-19 pandemic. METHODS: Adults age 16 years and older completed an anonymous online questionnaire between April 1, 2020 and November 30 2020. Measures of pre-pandemic and current food worry, depression (PHQ-2), anxiety (GAD-2), and sociodemographic variables were included. Multivariable logistic regression models were used to determine the association between food worry and symptoms of depression and anxiety. RESULTS: In total, 1605 participants were included in analyses. Worry about affording food was reported by 320 (14.78%) participants. In models adjusting for sociodemographic covariates, compared with people without food worry, participants who had food worry were 2.07 times more likely to report anxiety symptoms (aOR 2.07, 95% CI: 1.43 - 2.98, p < .001) and were 1.9 times more likely to report depressive symptoms (aOR 1.89, 95% CI: 1.39-2.57, p < .0001). Lower income, lower education, and pre-existing mental health conditions were significant predictors of symptoms of depression. Female gender, younger age, lower education, lower income, and pre-existing mental health condition were significant predictors of anxiety symptoms. CONCLUSION: Our study highlights the relationship between food worry and poor mental health. Policy supports such as improved income supports, clinical implications such as screening for food worry in primary care, referral to emergency food programs and support with meal planning may help mitigate mental health symptoms during the current pandemic, during future societal recovery from this pandemic and during future pandemics.

Antibody-incompatible kidney transplantation in 2015 and beyond.

Rejection caused by donor-specific antibodies (principally ABO and HLA antibodies) has become one of the major barriers to successful long-term transplantation. This review focuses on clinical outcomes in antibody-incompatible transplantation, the current state of the science underpinning clinical observations, and how these may be translated into further novel therapies. The clinical outcomes for allografts facing donor-specific antibodies are at present determined largely by the use of agents developed in the 20th century for the treatment of T-lymphocyte-mediated cellular rejection, such as interleukin-2 agents and anti-thymocyte globulin. These treatments are partially effective, because acute antibody-mediated rejection is mediated to a considerable extent by T lymphocytes. However these treatments are essentially ineffective in chronic antibody-mediated rejection. Future therapies for the prevention and treatment of antibody-mediated rejection are likely to fall into the categories of those that reduce antibody production, extracorporeal antibody removal and disruption of the effector arms of antibody-mediated tissue damage.

A comparison of client characteristics in cyber and in-person counseling.

As cybertherapy diversifies into a wide variety of modalities, it is incumbent upon researchers and clinicians to determine the most suitable cybertherapy approach for clients. Suitability encompasses ethical considerations, client satisfaction, and treatment outcomes. The authors, working with an Employee and Family Assistance Program provider based in Canada, provided text-based e-mail counseling (cybercounseling) to clients across the country. Cybercounseling was accessible to clients through the same avenues as in-person counseling. Clients self-selected either cybercounseling or in-person counseling at intake. For the purposes of this study, data from 211 clients have been collected, including 105 online and 106 in-person clients. Client demographic data including age, gender, presenting problem, referral source and marital status were collected for each client. Comparing the cyber and in-person client data provides insights into the similarities and differences between cyber and in-person client groups.

Overcoming the absence of tone and non-verbal elements of communication in text-based cybercounselling.

Understanding is critical to productive interactions, good communication and therapeutic change. Clients may understand the meanings of words a professional uses but not what the professional intends. If both the client and the professional simply assume that the other will understand their intention because the words are understood, the meanings of the words may come into dispute. This, in turn, leads to failed communication and negative therapeutic outcomes. To counter this, we have developed and used the Presence Techniques in text-based cybercounselling for more than a decade. This paper describes these online counselling techniques and explores their use and effectiveness.

Investigating molecular recognition and biological function at interfaces using piscidins, antimicrobial peptides from fish.

We studied amidated and non-amidated piscidins 1 and 3, amphipathic cationic antimicrobial peptides from fish, to characterize functional and structural similarities and differences between these peptides and better understand the structural motifs involved in biological activity and functional diversity among amidated and non-amidated isoforms. Antimicrobial and hemolytic assays were carried out to assess their potency and toxicity, respectively. Site-specific high-resolution solid-state NMR orientational restraints were obtained from (15)N-labeled amidated and non-amidated piscidins 1 and 3 in the presence of hydrated oriented lipid bilayers. Solid-state NMR and circular dichroism results indicate that the peptides are alpha-helical and oriented parallel to the membrane surface. This orientation was expected since peptide-lipid interactions are enhanced at the water-bilayer interface for amphipathic cationic antimicrobial peptides. (15)N solid-state NMR performed on oriented samples demonstrate that piscidin experiences fast, large amplitude backbone motions around an axis parallel to the bilayer normal. Under the conditions tested here, piscidin 1 was confirmed to be more antimicrobially potent than piscidin 3 and antimicrobial activity was not affected by amidation. In light of functional and structural similarities between piscidins 1 and 3, we propose that their topology and fast dynamics are related to their mechanism of action.

Clinical Relevance of Donor-Specific IgM Antibodies in HLA Incompatible Renal Transplantation: A Retrospective Single-Center Study.

Immunoglobulin G (IgG) antibodies against donor human leukocyte antigens (HLA) are monitored in the pre-and post-transplant period due to their established role in predicting rejection and renal allograft survival. However, the role of immunoglobulin M (IgM) anti-HLA donor-specific antibodies (DSA) is not fully understood, especially in highly-sensitized patients undergoing direct transplantation. We designed this study to determine whether IgM DSA predicts rejection episodes and/or graft failure. Samples from 92 patients who had undergone HLA-antibody incompatible transplants were tested at 5 time points: days -8 (pre-plasmapheresis), 0, 7, 14, and 30 using Luminex microbead assay with ethylenediaminetetraacetic acid containing wash buffer (LABScreen®, One Lambda, Canoga Park, CA). IgM was defined positive if the mean fluorescence values were greater than 2000. Presence of pre- and post-transplant IgM was correlated with early antibody mediated rejection episodes (within 30 days post-transplantation) and graft failure. Statistical analyses were performed using SPSS IBM software. Graft survival estimates were death-censored. The presence of pre-transplant IgM DSA did not predict rejection (p=0.83) or graft failure (p=0.424). The post-transplant IgM DSA levels peaked at day 14 (similar to IgG DSA levels). Presence of IgM DSA post-transplant (de novo and resynthesis) was not associated with rejection (p=0.83). However, post-transplant IgM was associated with graft failure (p=0.037). This study shows additional testing of post-transplant IgM DSA over and above IgG is important as post-transplant IgM DSA is associated with graft failure.

Double-quantum dipolar recoupling at high magic-angle spinning rates.

A full investigation of the possible homonuclear double-quantum recoupling sequences, based on the RN family of sequences with N < or = 20, is given. Several new RN sequences, R16(6)(5), R18(8)(5), and R18(10)(5), were applied at high magic-angle spinning rates and compared with theory. The R18(10)(5) technique can be used to recouple dipolar couplings at spinning rates up to 39 kHz, and the application of the sequence in an INADEQUATE experiment is shown for a spinning rate of 30 kHz.

Metformin decreases angiogenesis via NF-kappaB and Erk1/2/Erk5 pathways by increasing the antiangiogenic thrombospondin-1.

AIMS: Polycystic ovary syndrome (PCOS) is associated with insulin resistance (IR), obesity, and cardiovascular complications. Thrombospondin-1 (TSP-1) is a novel antiangiogenic adipokine highly expressed in obese insulin-resistant subjects. We sought to assess TSP-1 levels in adipose tissue (AT) from PCOS women and matched controls. The effects of metformin treatment on circulating TSP-1 levels in PCOS subjects, the effects of serum from normal and PCOS women on in vitro migration and angiogenesis before and after metformin treatment, and ex vivo regulation of AT TSP-1 by D-glucose were also studied. METHODS AND RESULTS: Serum TSP-1 (ELISA), subcutaneous and omental AT TSP-1 mRNA (reverse transcriptase-polymerase chain reaction), and protein (western blotting) were significantly lower in PCOS women (P < 0.05). Corresponding plasminogen activator inhibitor-1 (PAI-1) and PAI-1 activity were significantly higher (P < 0.01). After 6 months of metformin treatment, there was a significant increase in serum TSP-1 (P < 0.05) and a corresponding decrease in PAI-1 and PAI-1 activity (P < 0.01). In vitro migration and angiogenesis were significantly increased in serum from PCOS women (P < 0.01); these effects were significantly attenuated by metformin treatment (P < 0.01) through the regulation of TSP-1 levels via nuclear factor-kappaB (NF-kappaB), extracellular regulated-signal kinase 1/2 (Erk1/2) and Erk5 pathways. Importantly, changes in the intima media thickness were predictive of changes in serum TSP-1 (P = 0.049). In AT explants, glucose significantly decreased TSP-1 protein production and secretion into conditioned media (ELISA) (P < 0.05, P < 0.001). CONCLUSION: TSP-1 levels are lower in PCOS women. Metformin treatment increases serum TSP-1 in these women. Our findings provide novel insights into the relationship between obesity, IR, and angiogenesis.