Publications by authors named "Ding Zhi Fang"

Article Synopsis
  • - The study investigates the link between indoor air pollution from cooking with solid fuels and the risk of "possible sarcopenia" in middle-aged and older Chinese individuals, using data from the China Health and Retirement Longitudinal Study.
  • - Out of 17,708 participants tracked over 4 years, 1,532 developed possible sarcopenia, with those using solid fuels at a significantly higher risk compared to those using clean fuels.
  • - The results highlight that solid fuel use is a modifiable risk factor for sarcopenia, particularly impacting middle-aged women, suggesting that improving cooking fuel types could serve as a prevention strategy.
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  • The text is a note indicating a correction to a previously published article.
  • The specific article can be identified by its DOI: 10.1007/s40201-024-00911-3.
  • It implies that there was an error in the original version that needed to be addressed to ensure accuracy.
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Background: Diabetes mellitus is generally accompanied by dyslipidaemia, but inconsistent relationships between lipid profiles and diabetes are noted. Moreover, genetic variations in insertion/deletion (I/D) polymorphisms at angiotensin-converting enzyme gene (ACE) and T/C polymorphisms in the angiotensin type 1 receptor gene (AGTR1) are related to diabetes and lipid levels, but the associations are controversial. Thus, the current research aimed to explore the effects of ACE I/D, AGTR1 rs5182 and diabetes mellitus on serum lipid profiles in 385 Chinese participants with an average age of 75.

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  • The study investigates how psychosocial stress impacts serum cholesterol levels and its connection to psychological and endocrine disorders, highlighting that this relationship has not been fully explored yet.
  • Findings indicate that stress leads to increased serum corticosterone, total cholesterol, and low-density lipoprotein cholesterol (LDL-C) in a mouse model, suggesting physiological changes triggered by stress.
  • The research reveals that elevated glucocorticoids from stress inhibit specific signaling pathways in the liver, resulting in reduced LDL-C clearance and increased cholesterol production.
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Objectives: This study was to explore blood pressure levels in Chinese adolescents with different genotypes of phosphatidylethanolamine N-methyltransferase (PEMT) gene ( PEMT ) rs7946, as well as effects of dietary intake on blood pressure levels with different genders and different genotypes of PEMT rs7946.

Methods: PEMT rs7946 genotypes were identified by PCR-restriction fragment length polymorphism and verified by DNA sequencing. Blood pressure was measured using a standard mercury sphygmomanometer.

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Objective: To verify effects of rs1061622 at tumor necrosis factor-α receptor II (TNF-RII) gene (TNF-RII) on post-traumatic stress disorder (PTSD) and its interactive effects with PTSD on serum lipids levels in adolescents.

Methods: PTSD was measured by PTSD Checklist-Civilian Version (PCL-C) in 699 adolescent survivors at 6 months after Wenchuan earthquake in China. A polymerase chain reaction and restriction fragment length polymorphism assay were utilized for TNF-RII rs1061622 genotyping followed by verification using DNA sequencing.

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Aim: To explore anthropometric, metabolic and dietary factors associated with and their interplays with the Val66Met polymorphism at brain-derived neurotrophic factor (BDNF) gene () on serum BDNF levels in adolescents.

Methods: Serum BDNF levels were quantified using an enzyme-linked immunosorbent assay in 644 high school students (278 males/366 females). A polymerase chain reaction and restriction fragment length polymorphism assay were utilized for Val66Met genotyping followed by verification using DNA sequencing.

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Purpose: To investigate serum levels of free fatty acids (FFAs) and their associations with routine serum lipids in diet-induced obese mice, which have been scantily reported before.

Methods: Male C57BL/6 J mice were fed high-fat diets for 12 weeks to induce obesity. Levels of serum FFAs were measured by ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry.

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Background: Pathophysiological mechanisms of post-traumatic stress disorder (PTSD) are elusive and heterogeneous relationships have been reported among PTSD, Interleukin 10 (IL-10), and other factors after stresses. The present study aimed to longitudinally investigate associations of PTSD with environmental factors and genetic variation of rs1800872 at IL-10 gene.

Methods: Symptoms of PTSD were measured by PTSD Checklist-Civilian Version (PCL-C) in 462 high school students at 6, 12, and 18 months after Wenchuan earthquake in China.

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Objectives: The aim of the present study was to investigate relationships between insertion/deletion () polymorphism at angiotensin-converting enzyme gene () and post-traumatic stress disorder (PTSD), as well as their interactions on blood pressure.

Methods: Variants of were identified by polymerase chain reaction method and verified by DNA sequencing. PTSD symptoms were assessed by the PTSD Checklist-Civilian Version (PCL-C) based on DSM-IV-TR criteria among high school students at 6 months after the 2008 Wenchuan earthquake.

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The association of apolipoprotein AIV (APOA4) with depression or plasma levels of lipids and glucose has been inconsistently reported. However, interplays between APOA4 and depression on the levels have not been explored yet. The present study aimed to investigate plasma levels of APOA4, lipids, and glucose in adolescents with different genotypes of APOA4 rs5104 and with or without depression.

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To test the relationship not yet explored before among earthquake and related environmental factors, low-density lipoprotein receptor (LDLR) and posttraumatic stress disorder (PTSD), the genetic variation of LDLR rs5925 was selected and PTSD was examined by PTSD Checklist-Civilian Version (PCLC) in adolescents with different genotypes of LDLR rs5925 longitudinally at 6, 12 and 18 months after the 2008 Wenchuan earthquake. The C allele carriers were observed to have higher PTSD prevalence than the TT homozygotes in the male subjects, and higher PTSD prevalence and PCL-C scores in the female subjects only at 6 months. When compared to that at 12 months, decreased PTSD prevalence was observed at 18 months only in the female C allele carriers, but not in the female TT homozygotes or the male subjects.

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Objectives: The study's aim was to examine the prevalence and severity of posttraumatic stress disorder (PTSD) longitudinally among high school students with different genotypes of the leptin gene (LEP) rs7799039 after the 2008 Wenchuan earthquake in China.

Methods: The symptoms of PTSD were measured by the PTSD Checklist-Civilian Version (PCL-C) based on DSM-IV-TR criteria in 462 students at 6, 12, and 18 months after the earthquake. The genotypes of LEP rs7799039 were identified by polymerase chain reaction-restriction fragment length polymorphism analyses in 2018 using genomic DNA prepared in 2008 and stored at -80°C and verified by DNA sequencing.

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We have previously found two novel monoterpene glycosides, liguroside A and liguroside B, with an inhibitory effect on the catalytic activity of the enzyme leukocyte-type 12-lipoxygenase in the Qing Shan Lu Shui tea. Here, two new monoterpene glycosides, liguroside C and liguroside D which inhibit this enzyme, were isolated from the same tea. The spectral and chemical evidence characterized the structures of these compounds as (5)-7-hydroperoxy-3,7-dimethyl-1,5-octadienyl-3--(α-l-rhamnopyranosyl)-(1''→3')-(4'''----coumaroyl)-β-d-glucopyranoside and (2)-6-hydroxy-3,7-dimethyl-2,7-octadienyl-3--(α-l-rhamnopyranosyl)-(1''→3')-(4'''----coumaroyl)-β-d-glucopyranoside, respectively.

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Both post-traumatic stress disorder (PTSD) and estrogen receptor alpha (ESR1) gene rs2234693 were reported to influence serum glucose and lipids profiles. However, their interactions on serum glucose and lipids profiles have not been reported. A total of 708 Chinese Han high school students were recruited at 6th months after the 2008 Wenchuan Earthquake.

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Posttraumatic stress disorder (PTSD) and growth hormone secretagogue receptor (GHSR) were reported to be associated with plasma lipid and glucose levels. However, interplays of PTSD with GHSR on plasma lipid and glucose levels have not been explored yet. This study was to investigate the interplays of PTSD and GHSR rs495225 on plasma glucose and lipid profiles.

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Objective: The aim of current study was to explore longitudinally the prevalence, severity, potential factors, and predictors of depression among Chinese Han adolescent survivors with different genotypes of () rs1061622 after the 2008 Wenchuan earthquake.

Method: rs1061622 variants were examined by polymerase chain reaction⁻restriction fragment length polymorphism and verified by DNA sequencing. Depression symptoms were assessed by Beck Depression Inventory (BDI) among 439 high school students at 6, 12, and 18 months after the earthquake.

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Indirect evidences suggested associations of estrogen receptor alpha (ESR1) with post-traumatic stress disorder (PTSD). However, the relationship between rs9340799 on ESR1 gene and PTSD has not been reported yet. The present study was to explore the longitudinal changes of prevalence and severity of PTSD in adolescents with different genotypes of rs9340799 after the 2008 Wenchuan earthquake.

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Objective: The purpose of the present study was to longitudinally investigate the association of insertion/deletion (I/D) polymorphism at angiotensin-converting enzyme gene (ACE) with depression in Chinese adolescents experiencing the 2008 Wenchuan earthquake.

Methods: Variants of ACE I/D were identified by polymerase chain reaction and verified by DNA sequencing. Depression symptoms were assessed by the Beck Depression Inventory (BDI) among high school students at 6, 12 and 18 months after the earthquake.

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Inconsistent relationships were reported between rs9340799 on estrogen receptor alpha gene (ESR1) and depression in previous studies. The present study was to explore the longitudinal changes of prevalence and severity of depression in 439 Chinese Han adolescents with different genotypes of ESR1 rs9340799 at 6, 12 and 18months after the 2008 Wenchuan earthquake. Social-environmental factors were collected by questionnaires from 465 high school students.

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Article Synopsis
  • - The study examined how the Val66Met polymorphism in the BDNF gene relates to depression in Chinese Han adolescents after the 2008 Wenchuan earthquake, using a variety of analyses, including DNA sequencing and the Beck Depression Inventory (BDI) for assessment over time.
  • - Results indicated that female Met allele carriers consistently showed higher depression rates than males, with notable reductions in depression prevalence observed at different time intervals post-disaster.
  • - The study suggests complex interactions among the BDNF Val66Met variant, gender, and time, affecting depression severity and calling for tailored approaches in treating adolescent depression in the aftermath of traumatic events.
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Background: It is unclear about the change and risk factors of depression among adolescent survivors after earthquake.

Aims: This study aimed to explore the change of depression, and identify the predictive factors of depression among adolescent survivors after the 2008 Wenchuan earthquake in China.

Methods: The depression among high school students at 6, 12 and 18 months after the Wenchuan earthquake were investigated.

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