Publications by authors named "Jian-li Wang"

Many studies have explored the relationships between demographic variables and postpartum major depressive disorder. However, there is no clear conclusion on the impact of different marital statuses and quality on postpartum major depressive disorder. This systematic review and meta-analysis examined the combined effects of different marital status and quality on postpartum major depressive disorder with cohort studies.

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  • This study explored how substance use varies by gender, ethnicity, and income among clients seeking mental health and addiction services in Nova Scotia, focusing on prevalence, routes of administration, and associated factors.
  • 36.1% of clients reported daily substance use, with the highest rates found among homeless individuals (69.7%) and non-White men receiving social assistance/disability (60.9%).
  • Factors such as age, insurance access, mental health history, suicide risk, and psychosocial stressors were linked to higher rates of substance use, indicating a need for tailored prevention and treatment strategies.
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Background: Depression is a highly prevalent and disabling mental health problem. Self-help has been strongly advocated for dealing with depression. Built upon the research on risk prediction modeling and risk communication, we developed a coach-guided, personalized depression risk communication tool (PDRC) for sharing information about individualized depression risk and evidence-based self-help strategies.

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  • The study investigates how using small datasets to select an optimal cutoff score for the Patient Health Questionnaire-9 (PHQ-9) can lead to inaccurate results.
  • Researchers evaluated whether data-driven methods for cutoff selection resulted in scores that were significantly different from the true population optimal score and if these methods produced biased accuracy estimates.
  • Findings showed that many small studies frequently failed to identify the correct optimal cutoff score, particularly in smaller samples, leading to an overestimation of test sensitivity.
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Identifying biomarkers for serious mental illnesses (SMI) has significant implications for prevention and early intervention. In the current study, changes in whole brain structural and functional connectomes were investigated in youth at transdiagnostic risk over a one-year period. Based on clinical assessments, participants were assigned to one of 5 groups: healthy controls (HC; n = 33), familial risk for serious mental illness (stage 0; n = 31), mild symptoms (stage 1a; n = 37), attenuated syndromes (stage 1b; n = 61), or discrete disorder (transition; n = 9).

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  • The study investigates the relationship between cannabis use frequency and psychiatric symptoms among individuals seeking mental health services.
  • Frequent and infrequent cannabis users exhibit more psychiatric symptoms across various domains (mood, anxiety, psychosis, cognition, and externalizing behaviors) compared to non-users, with no major differences between the two user groups.
  • The findings indicate that frequent cannabis use correlates with a greater functional impact of psychiatric symptoms, emphasizing the potential mental health risks associated with higher consumption levels.
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  • Nearly 18% of Canadians reported needing mental health support, but only 56.2% said their needs were fully met, highlighting a significant gap in accessible care.
  • Nova Scotia Health has launched the Rapid Access and Stabilization Program (RASP) to provide mental health services without emergency visits or hospitalization, aiming to reduce high-cost health service utilization.
  • A mixed methods study is being conducted to evaluate RASP's effectiveness, looking at health services use before and after participation, as well as assessing healthcare partner perceptions and patient satisfaction.
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We examine structural brain characteristics across three diagnostic categories: at risk for serious mental illness; first-presenting episode and recurrent major depressive disorder (MDD). We investigate whether the three diagnostic groups display a stepwise pattern of brain changes in the cortico-limbic regions. Integrated clinical and neuroimaging data from three large Canadian studies were pooled (total n = 622 participants, aged 12-66 years).

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  • Broken eggs from poultry can serve as a nitrogen source for oyster mushroom cultivation, but their effectiveness needs research.
  • The study tested various amounts of broken egg mixture (BEM) in composting for oyster mushrooms, measuring the effects on nutrient content and bacterial communities.
  • Results showed that the right amount of BEM significantly improved nitrogen levels in compost, enhanced mushroom quality, and altered bacterial communities, with specific dosages yielding the best results for both yield and nutritional value.
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  • Sepsis is a serious health problem, and there's a new treatment in China that combines herbal medicine with regular hospital care to help save lives.
  • Researchers figured out which parts of the herbal medicine, called XueBiJing, help fight sepsis by testing it on rats.
  • They found six important compounds in XueBiJing that help the body respond better to infection, reduce inflammation, and improve how well organs work.
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  • The study investigates changes in moderate or severe symptoms of anxiety and depression in Canadians aged 35 and older from before to during the COVID-19 pandemic, using data from two health surveys.
  • Researchers categorized changes in mental health symptoms as no symptoms, remitted, incident, or persistent, analyzing factors like age, gender, income, and health behaviors that might influence these changes.
  • Findings reveal that various sociodemographic and health-related factors impacted mental health during the pandemic, highlighting the need for ongoing public health initiatives and policies that address mental health disparities and socioeconomic barriers.
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Background: Microglia are closely linked to Alzheimer's disease (AD) many years ago; however, the pathological mechanisms of AD remain unclear. The purpose of this study was to determine whether leptin affected microglia in the hippocampus of young and aged male APP/PS1 mice.

Objective: In a transgenic model of AD, we investigated the association between intraperitoneal injection of leptin and microglia.

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Objective: This study proposes to identify and validate weighted sensor stream signatures that predict near-term risk of a major depressive episode and future mood among healthcare workers in Kenya.

Approach: The study will deploy a mobile application (app) platform and use novel data science analytic approaches (Artificial Intelligence and Machine Learning) to identifying predictors of mental health disorders among 500 randomly sampled healthcare workers from five healthcare facilities in Nairobi, Kenya.

Expectation: This study will lay the basis for creating agile and scalable systems for rapid diagnostics that could inform precise interventions for mitigating depression and ensure a healthy, resilient healthcare workforce to develop sustainable economic growth in Kenya, East Africa, and ultimately neighboring countries in sub-Saharan Africa.

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Background: Scarce are the studies focusing on initiation of new mental health service use (MHSU) and distinguishing individuals who have sought services but have been unsuccessful in accessing these.

Aims: Assessing the factors associated with initiating new MHSU as compared to no MHSU due to self-reported no need, no MHSU due to health system and personal barriers and MHSU using resources already in place.

Methods: The sample included participants ( = 16,435) in the five established regional cohorts of the Canadian Partnership for Tomorrow's Health (CanPath) who responded to the CanPath COVID-19 health surveys (May-December 2020 and January-June 2021).

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Objective: There is increasing interest in early intervention and detection strategies for youth at-risk of developing a serious mental illness (SMI). Little is known about early factors that may be related to the later development of a SMI; thus, the aim of this study was to determine what clinical factors might relate to the development of in this study psychosis, bipolar disorder and severe or recurrent major depression in at-risk youth.

Method: The sample consisted of 162 youth aged 12-26 years at different stages of risk.

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Background: Panic disorder (PD), major depressive disorder (MDD), and the comorbidity (PD&MDD) in college students have caused a heavy disease burden for individuals and families. However, little was known for the comorbidity, especially the impact of parental rearing style on the incidence of the PD&MDD comorbidity.

Methods: A cohort study was conducted among 6652 Chinese college students.

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Objectives: Using Andersen's model of health care seeking behavior, we examined the predisposing, enabling, and need factors associated with mental health service use (MHSU) during the first wave of the COVID-19 pandemic across Canada.

Methods: The sample included n = 45,542 participants in the 5 established regional cohorts of the Canadian Partnership for Tomorrow's Health (CanPath) and who responded to the CanPath COVID-19 health survey (May-December 2020), with complete data on MHSU. Multivariable logistic regression analyses were carried out to study MHSU as a function of predisposing, enabling, and need factors.

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Although gut seasonal plasticity has been extensively reported, studies on physiological flexibility, such as water-salt transportation and motility in reptiles, are limited. Therefore, this study investigated the intestinal histology and gene expression involved in water-salt transport (AQP1, AQP3, NCC, and NKCC2) and motility regulation (nNOS, CHRM2, and ADRB2) in desert-dwelling Eremias multiocellata during winter (hibernating period) and summer (active period). The results showed that mucosal thickness, the villus width and height, the enterocyte height of the small intestine, and the mucosal and submucosal thicknesses of the large intestine were greater in winter than in summer.

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Objectives: (1) To calculate the proportions of people who sought mental health and addiction (MHA) specialty services in Nova Scotia, overall and by sex and age. (2) To describe the health and psychosocial profiles of the MHA Intake clients. (3) To identify factors associated with acceptance for MHA services.

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