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Related Concept Videos

Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

47
Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
47
Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

82
Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
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Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
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Schizophrenia01:17

Schizophrenia

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Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
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Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

545
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
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Language and Cognition01:27

Language and Cognition

340
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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Related Experiment Video

Updated: Jun 19, 2025

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
07:29

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High-Density Lipoprotein Correlates with Cognitive Functioning in Schizophrenic Women.

Maria Staniek1, Pawel Kapelski2, Przemyslaw Zakowicz3

  • 1Independent Researcher, 60-806 Poznan, Poland.

Brain Sciences
|July 27, 2024
PubMed
Summary

High-density lipoprotein (HDL) levels may protect against cognitive impairment in schizophrenia. Lower HDL and longer illness duration were linked to poorer cognitive function in women with schizophrenia.

Keywords:
Wisconsin card sorting test (WCST)cognitive functionshigh-density lipoprotein (HDL)lipid profilelow-density lipoprotein (LDL)positive and negative syndrome scale (PANSS)schizophreniatriglycerides (TGs)

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Biochemistry

Background:

  • Schizophrenia is a chronic neuropsychiatric disorder affecting cognition in 98% of patients.
  • Cognitive impairment significantly impacts quality of life in individuals with schizophrenia.
  • Lipid profiles, particularly high-density lipoproteins (HDL), are increasingly recognized for their role in cognitive function.

Purpose of the Study:

  • To investigate the relationship between cognitive functions, schizophrenia symptom severity, and serum lipid profiles.
  • To explore how lipid levels, specifically HDL, LDL, and triglycerides, correlate with cognitive performance in women with schizophrenia.

Main Methods:

  • Fifty-two women diagnosed with schizophrenia were assessed.
  • Cognitive functioning was evaluated using the Wisconsin Card Sorting Test (WCST).
  • Symptom severity was measured by the Positive and Negative Symptom Scale (PANSS); serum lipid profiles were analyzed.

Main Results:

  • Higher HDL levels correlated with better cognitive functions (higher WSCT scores).
  • Lower HDL levels were associated with poorer cognitive performance and correlated with the PANSS negative subscale.
  • Cognitive function decline was linked to patient age and schizophrenia chronicity, independent of symptom severity.

Conclusions:

  • Elevated HDL levels may serve as a protective factor against cognitive deficits in schizophrenia.
  • Age and duration of illness are significant factors influencing cognitive performance in this population.
  • Findings highlight the potential role of lipid management in addressing cognitive impairment in schizophrenia.