PMID: 

Toxicol Environ Chem. 2011 May ;93(5-6):1251-1273. Epub 2011 May 20. PMID: 22163375

Abstract Title: 

The plausibility of a role for mercury in the etiology of autism: a cellular perspective.

Abstract: 

Autism is defined by a behavioral set of stereotypic and repetitious behavioral patterns in combination with social and communication deficits. There is emerging evidence supporting the hypothesis that autism may result from a combination of genetic susceptibility and exposure to environmental toxins at critical moments in development. Mercury (Hg) is recognized as a ubiquitous environmental neurotoxin and there is mounting evidence linking it to neurodevelopmental disorders, including autism. Of course, the evidence is not derived from experimental trials with humans but rather from methods focusing on biomarkers of Hg damage, measurements of Hg exposure, epidemiological data, and animal studies. For ethical reasons, controlled Hg exposure in humans will never be conducted. Therefore, to properly evaluate the Hg-autism etiological hypothesis, it is essential to first establish the biological plausibility of the hypothesis. This review examines the plausibility of Hg as the primary etiological agent driving the cellular mechanisms by which Hg-induced neurotoxicity may result in the physiological attributes of autism. Key areas of focus include: (1) route and cellular mechanisms of Hg exposure in autism; (2) current research and examples of possible genetic variables that are linked to both Hg sensitivity and autism; (3) the role Hg may play as an environmental toxin fueling the oxidative stress found in autism; (4) role of mitochondrial dysfunction; and (5) possible role of Hg in abnormal neuroexcitory and excitotoxity that may play a role in the immune dysregulation found in autism. Future research directions that would assist in addressing the gaps in our knowledge are proposed.

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PMID: 

Neurogastroenterol Motil. 2019 02 ;31(2):e13461. Epub 2018 Sep 19. PMID: 30232834

Abstract Title: 

Exercise therapy of patients with irritable bowel syndrome: A systematic review of randomized controlled trials.

Abstract: 

BACKGROUND: As drug use has limitations in the treatment of irritable bowel syndrome (IBS), increasing attention is being paid to nondrug therapies and complementary treatments, especially exercise. It is known that bowel movements are more frequent and colon transit is more rapid in physically active individuals than in sedentary individuals. However, the effects of exercise on IBS are unclear.PURPOSE: We conducted a systematic review to assess the effects of exercise on IBS.METHODS: We searched PubMed, Web of Science, EMBASE, Cochrane Library, and two Chinese databases (Wanfang Database and Chinese Biomedical Literature [CBM]) for eligible studies. We extracted and pooled relevant information regarding the effects of exercise in patients with IBS. The primary outcomes were gastrointestinal symptoms, quality of life, depression, and anxiety.KEY RESULTS: A total of 683 patients with IBS from 14 randomized controlled trials met our inclusion criteria. The exercise interventions in this review were yoga, walking/aerobic physical activity, Tai Ji, mountaineering, and Baduanjin qigong activity. The results of this review suggested exercise had significant benefits for patients with IBS, but studies were limited by the strong risk of bias.CONCLUSIONS AND INFERENCES: Our findings suggest that exercise is potentially a feasible and effective treatment for IBS patients. However, because of methodologic issues, no firm conclusions could be drawn about the true effects of this intervention. Researchers should design a rigorous study to assess the effects of exercise on IBS.

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PMID: 

Front Neurosci. 2016 ;10:174. Epub 2016 Apr 20. PMID: 27147957

Abstract Title: 

Chemicals, Nutrition, and Autism Spectrum Disorder: A Mini-Review.

Abstract: 

The rapid increase of the prevalence of autism spectrum disorder (ASD) suggests that exposure to chemicals may impact the development of ASD. Therefore, we reviewed literature on the following chemicals, nutrient to investigate their association with ASD: (1) smoke/tobacco, (2) alcohol, (3) air pollution, (4) pesticides, (5) endocrine-disrupting chemicals, (6) heavy metals, (7) micronutrients, (8) fatty acid, and (9) parental obesity as a proxy of accumulation of specific chemicals or nutritional status. Several chemical exposures such as air pollution (e.g., particular matter 2.5), pesticides, bisphenol A, phthalates, mercury, and nutrition deficiency such as folic acid, vitamin D, or fatty acid may possibly be associated with an increased risk of ASD, whereas other traditional risk factors such as smoking/tobacco, alcohol, or polychlorinated biphenyls are less likely to be associated with ASD. Further research is needed to accumulate evidence on the association between chemical exposure and nutrient deficiencies and ASD in various doses and populations.

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PMID: 

Hu Li Za Zhi. 2018 Oct ;65(5):34-44. PMID: 30276771

Abstract Title: 

[Chan-Chuang Qigong Improves Exercise Capacity, Depression, and Quality of Life in Patients With Heart Failure].

Abstract: 

BACKGROUND: Evidence-based research has shown the effects of traditional Chinese exercise on exercise capacity, depression, and quality of life in patients with cardiovascular disease. However, the effects of Chan-Chuang qigong on the physical and psychological status and on the quality of life of these patients are unknown.PURPOSE: To investigate the effects of Chan-Chuang qigong on exercise capacity, depression, and quality of life in patients with heart failure.METHODS: A randomized controlled study with repeated measures was conducted. One hundred participants with heart failure were recruited from a teaching medical center in Taiwan. Permuted block randomization was used to randomly assign the participants to either the Chan-Chuang qigong group, which received Chan-Chuang qigong intervention for three-months, or the control group. The outcome variables included six-minute walk distance, depression, and quality of life.RESULTS: Generalized estimating equation analyses showed that the Chan-Chuang qigong group achieved significantly greater improvements than the control group in terms of six-minute walk distance (p = .001, p

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PMID: 

J Altern Complement Med. 2019 Mar ;25(3):317-325. Epub 2018 Nov 14. PMID: 30427696

Abstract Title: 

The Effect of T'ai Chi and Qigong Training on Patients with Obstructive Sleep Apnea: A Randomized Controlled Study.

Abstract: 

OBJECTIVES: This study aims to investigate the effects of t'ai chi and qigong (TCQ) training on severity of obstructive sleep apnea (OSA).DESIGN: A prospective, 12-week, single-center, double-blinded, randomized controlled trial.SETTING: Sleep Disorders Center of Medical Faculty in Istanbul, Turkey.SUBJECTS: Fifty adult patients with mild and moderate OSA.INTERVENTIONS: Patients were randomly allocated into either an intervention group or a control group. The intervention group (n = 25) received TCQ training under physiotherapist supervision for 1 h, three times per week, for 12 weeks and a home exercise program was provided for another 2 days. The control group (n = 25) received only a home exercise program for 12 weeks, 5 days per week.OUTCOME MEASURES: All patients were assessed before and after the exercise program. Objective parameters of sleep were measured by polysomnography, while subjective parameters of sleep were assessed using the Epworth Sleepiness Scale (ESS) and the 3-factor Pittsburgh Sleep Quality Index (PSQI). Pulmonary functions were assessed with a pulmonary function test; health-related quality of life was evaluated through the Short Form-36.RESULTS: In the intervention group, there was a statistically significant decrease in the apnea-hypopnea index (AHI) (p = 0.001) and percentage and duration of stage N2 sleep (p = 0.041 and p = 0.037, respectively), while there was a statistically significant increase in percentage and duration of stage N3 sleep when compared with the controls (p = 0.048 and p = 0.043, respectively). There was astatistically significant decrease in the ESS, PSQI sleep efficiency, and total scores (p = 0.001, p = 0.003, and p = 0.003, respectively).CONCLUSIONS: Our study results suggest that TCQ training may reduce AHI and daytime sleepiness, while improving subjective sleep quality, in patients with mild and moderate OSA.

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PMID: 

Arch Dis Child. 1977 Dec ;52(12):962-4. PMID: 606172

Abstract Title: 

Organ mercury levels in infants with omphaloceles treated with organic mercurial antiseptic.

Abstract: 

Samples of fresh and fixed tissues from infants with exomphalos treated by thiomersal application were analysed for mercury content. The results showed that thiomersal can induce blood and organ levels of organic mercury which are well in excess of the minimum toxic level in adults and fetuses. The analysis of fresh and fixed tissues must be carefully controlled against normal tissues in order to interpret mercury levels accurately.

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PMID: 

Neuroscience. 2000 ;101(1):229-36. PMID: 11068151

Abstract Title: 

Regulation of sodium currents through oxidation and reduction of thiol residues.

Abstract: 

Changes in redox state are involved in several physiological and pathophysiological processes. Previous experiments have demonstrated that nitric oxide can function as a reactive oxygen species, inhibiting neuronal sodium currents by nitrosylation of thiol residues. We hypothesized that nitric oxide and thiol oxidizers similarly modulate voltage-dependent sodium currents. Voltage-dependent sodium currents were studied with the whole-cell patch-clamp technique in NB41A3 neuroblastoma cells. The nitric oxide donor 3-(2-hydroxy-2-nitroso-1-propylhydrazino)-1-propanamine did not affect sodium currents. In contrast, the thiol oxidizers thimerosal and 4,4'-dithiopyridine significantly inhibited sodium currents. The effect of thimerosal persisted after washout, but could be fully reversed by the reducing agent dithiothreitol. Reduced glutathione did not restore the sodium current amplitude when given extracellularly, while intracellular glutathione prevented the inhibitory effect of thimerosal. Pretreatment with the alkylating agent N-ethylmaleimide blocked the inhibitory action of thimerosal. Thiol oxidation caused a shift in the voltage dependence of fast and slow inactivation to more hyperpolarized potentials without concomitant effects on the voltage dependence of activation. Mercaptoethanol and reduced glutathione enhanced sodium currents by shifting the voltage dependence of inactivation to depolarized potentials. These results demonstrate that the oxidation and reduction of thiol residues alters the properties of voltage-sensitive sodium channels and may play an important role in the regulation of membrane excitability.

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PMID: 

J Ocul Pharmacol Ther. 2009 Apr ;25(2):113-9. PMID: 19284328

Abstract Title: 

Comparative toxicity of preservatives on immortalized corneal and conjunctival epithelial cells.

Abstract: 

PURPOSE: Nearly all eye drops contain preservatives to decrease contamination. Nonpreservatives such as disodium-ethylene diamine tetra-acetate (EDTA) and phosphate-buffered saline are also regularly added as buffering agents. These components can add to the toxicity of eye drops and cause ocular surface disease. To evaluate the potential toxicity of these common components and their comparative effects on the ocular surface, a tissue culture model utilizing immortalized corneal and conjunctival epithelial cells was utilized.METHODS: Immortalized human conjunctival and corneal epithelial cells were grown. At confluency, medium was replaced with 100 microL of varying concentrations of preservatives: benzalkonium chloride (BAK), methyl paraben (MP), sodium perborate (SP), chlorobutanol (Cbl), and stabilized thimerosal (Thi); varying concentrations of buffer: EDTA; media (viable control); and formalin (dead control). After 1 h, solutions were replaced with 150 microL of MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazonium bromide). After 4 h, solutions decanted, 100 microL of acid isopropanol added, and the optical density determined at 572 nm to evaluate cell viability.RESULTS: Conjunctival and corneal cell toxicity was seen with all preservatives. Depending upon concentration, BAK exhibited from 56% to 89% toxicity. In comparison, Cbl exhibited from 50% to 86%, MP from 30% to 76%, SP from 23% to 59%, and Thi from 70% to 95%. EDTA with minimal toxicity (from 6% to 59%) was indistinguishable from SP.CONCLUSIONS: Generally, the order of decreasing toxicity at the most commonly used concentrations: Thi (0.0025%)>BAK (0.025%)>Cbl (0.25%)>MP (0.01%)>SP (0.0025%) approximately EDTA (0.01%). Even at low concentration, these agents will cause some degree of ocular tissue damage.

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PMID: 

Scand J Psychol. 2019 Feb ;60(1):43-49. Epub 2018 Nov 14. PMID: 30428134

Abstract Title: 

Assessment of hormonal parameters and psychological well-being in healthy subjects after a Taoist qigong program: An exploratory study.

Abstract: 

Qigong is an ancient form of health maintenance, which is part of Traditional China Medicine. Numerous beneficial mental and physical effects have been classically ascribed to this traditional psychosomatic method. The purpose of this work has been to assess the effects of Taoist qigong practice on several hormonal parameters of the Hipotalamic-Pituitary-Adrenal axis and specific measures of psychological well-being in healthy subjects. Forty-three healthy volunteers participated in the study, of whom 22 were randomly allocated to the experimental group, and 21 were assigned to the control group. Experimental participants underwent a qigong training program for one month. Blood samples for the quantification of hormonal parameters, and several instruments to assess anxiety and depression symptoms as well as subjective sleep quality, were obtained before and after the program. Statistically significant differences were found between the experimental and control groups, with the experimental group showing lower blood levels of adrenocorticotropic hormone (ACTH). This study shows that Taoist qigong is a psychosomatic method able to exert a modulatory action on ACTH levels in healthy subjects. We consider the need to continue exploring the psychobiological modulation of this qigong method and its possible repercussion for human health care.

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PMID: 

Diabetes Metab Syndr. 2019 Jul 29 ;13(5):2873-2877. Epub 2019 Jul 29. PMID: 31425951

Abstract Title: 

Effects of vitamin D supplementation on circulatory YKL-40 and MCP-1 biomarkers associated with vascular diabetic complications: A randomized, placebo-controlled, double-blind clinical trial.

Abstract: 

AIM: Diabetic patients predispose to vascular diseases such as nephropathy, and retinopathy. Poor adherence to medical treatment and dietary recommendations in uncontrolled diabetes leads to vascular damages. Vitamin D has been extensively studied and found to be protective against diabetes mellitus. YKL-40 and Monocyte chemoattractant protein-1 (MCP-1) are considered to exert crucial role in diabetes and its complications. Therefore, this study was designed to investigate effects of vitamin D supplementation on serum levels of YKL-40 and MCP-1 involved in the development of diabetic complications.METHODS: For 12 weeks, 48 type 2 diabetic patients enrolled in the trial and randomly were divided into two groups (n = 24 per group), receiving one of the following: 100 μg (4000 IU) vitamin D or placebo. Before and after intervention, serumYKL-40, MCP-1, insulin, IL-6, TNF-α, 25- (OH) vitamin D and HbA1c were measured.RESULTS: Our results revealed that serum levels of 25 (OH) vitamin D significantly increased in vitamin D group (p 

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