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1.
Mol Neurobiol ; 2024 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-38970766

RESUMO

Neurodegenerative diseases pose a significant health challenge for the elderly. The escalating presence of toxic metals and chemicals in the environment is a potential contributor to central nervous system dysfunction and the onset of neurodegenerative conditions. Transition metals play a crucial role in various pathophysiological mechanisms associated with prevalent neurodegenerative diseases such as Alzheimer's and Parkinson's. Given the ubiquitous exposure to metals from diverse sources in everyday life, the workplace, and the environment, most of the population faces regular contact with different forms of these metals. Disturbances in the levels and homeostasis of certain transition metals are closely linked to the manifestation of neurodegenerative disorders. Oxidative damage further exacerbates the progression of neurological consequences. Presently, there exists no curative therapy for individuals afflicted by neurodegenerative diseases, with treatment approaches primarily focusing on alleviating pathological symptoms. Within the realm of biologically active compounds derived from plants, flavonoids and curcuminoids stand out for their extensively documented antioxidant, antiplatelet, and neuroprotective properties. The utilization of these compounds holds the potential to formulate highly effective therapeutic strategies for managing neurodegenerative diseases. This review provides a comprehensive overview of the impact of abnormal metal levels, particularly copper, iron, and zinc, on the initiation and progression of neurodegenerative diseases. Additionally, it aims to elucidate the potential of fisetin and curcumin to inhibit or decelerate the neurodegenerative process.

2.
Spectrochim Acta A Mol Biomol Spectrosc ; 322: 124689, 2024 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-38996762

RESUMO

Creatinine is the end product of the catabolism of creatine and creatine phosphate. Creatine phosphate serves as a reservoir of high-energy phosphate, especially in skeletal and cardiac muscle. Besides typical known changes in serum and urinary creatinine concentrations, rare cases associated with changes in serum and urinary creatine levels have been described in the literature in humans. These cases are mostly linked to an excessive intake of creatine ethyl ester or creatine monohydrate, often resulting in increased urine creatinine concentrations. In addition, it is known that at such elevated creatinine concentrations, creatinine crystallisation may occur in the urine. Analysis of crystals and urinary concrements, often of heterogenous chemical composition, may provide diagnostic and therapeutic hints to the benefit of the patient. The aim of the present work was to analyze urine crystals of unclear composition with microscopic and spectroscopic techniques. On routine microscopic analysis of urine, a preliminary suspicion of uric acid or creatinine crystals was expressed. The crystals were of a cuboid shape and showed polarization effects in microscopy. The dried urine sample was whitish-orange in colour, odourless and dissolved well in water. Protein concentration in dry weight (DW) urine was about 0.3 mg/mg. The measured zinc content in the studied sample was approximately 660 µg/g DW sample and copper content was approximately 64 µg/g DW sample. A lead signal of around 10 µg/g DW sample was also observed. UV-Vis analysis showed a maximum creatine peak around 220 nm, compatible with the spectrum of creatinine with a maximum peak of 230 nm. Using HPLC technique, an extreme high ratio of creatine to creatinine of about 38 was measured, which led to the conclusion of the occurrence of rare creatine crystals in urine.

3.
Curr Med Chem ; 2024 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-38988157

RESUMO

This review explores the relationship between lithium in drinking water and mental health, a subject that has garnered increasing attention in investigations. Lithium, a metal with a well-established role in psychiatric medications, is found in trace amounts in drinking water, and studies suggest its potential correlations with lower rates of suicide and certain psychiatric disorders. However, these correlations do not imply causation, necessitating an examination of the underlying mechanisms. Lithium concentrations in drinking water vary globally, presenting challenges in establishing a universal threshold for "high" or "low" levels. Additionally, the optimal dosage for potential mental health benefits remains uncertain. Lithium is not considered an essential nutrient, and supplementation should be approached with caution due to possible toxicity risks, emphasizing the importance of medical supervision. The lack of causation and ongoing need for further investigation underscores the importance of cautious interpretation and transparent communication in navigating this evolving field.

4.
Risk Manag Healthc Policy ; 17: 1005-1013, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38690537

RESUMO

Background: This study explores patient acceptance of influenza vaccination administered by pharmacists in Romania during the 2023 season, considering it a novel strategy to address gaps in knowledge. Pharmacy-based vaccination deviates from traditional methods, providing high-risk patients with full reimbursement and others with 50% reimbursement, allowing a choice between family doctors and pharmacies for vaccine administration. Material and Method: The survey includes 15 questions covering socio-demographic data, health information, vaccination preferences, and perceptions of pharmacy-based vaccinations. Results: Respondents showed a positive inclination toward pharmacy-based vaccination, with 68% expressing favorable sentiments, but an awareness gap exists, as only 36% were aware of pharmacy-based vaccination availability. Conclusion: Challenges include a lack of patient awareness and understanding of benefits, emphasizing the need for structured pharmacist-patient dialogues. Legal changes, a defined funding mechanism, and collaboration are crucial for successful implementation. The study provides valuable insights into patient perceptions, contributing to discussions on optimizing influenza vaccination coverage in Romania and beyond and recognizing pharmacies' potential in achieving broader vaccination goals.

5.
Curr Med Chem ; 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38778600

RESUMO

This review summarizes the scientific knowledge concerning the impact of vitamins, magnesium, and trace elements on various mechanisms contributing to the possible treatment and prevention of COVID-19, including its delayed consequences. A search was conducted in various databases, including PubMed, Scopus, ClinicalTrials.- gov, and Web of Science. Among the main mechanisms involved in the effects of the studied micronutrients, immune-boosting, antioxidant and anti-inflammatory effects were also highlighted. The analyzed clinical trials confirmed that supplementation with higher daily doses of some micronutrients can reduce SARS-CoV-2 viral load and hospitalization time. The potential role of most known vitamins in preventing, treating COVID-19, and rehabilitating patients was considered. The most promising agents for combating COVID-19 and its consequences might be the following vitamins: vitamin D, ascorbic acid, polyunsaturated fatty acids (PUFAs), and some B complex vitamins. Inorganic elements deserving attention include magnesium and trace elements, such as zinc, selenium, copper, and iron. Some associations were found between micronutrient deficiencies and COVID-19 severity in children, adults, and older people. Patients can obtain the aforementioned micronutrients from natural food sources or as supplements/- drugs in various dosage forms. The reviewed micronutrients might be considered adjunctive treatment strategies for COVID-19 patients.

6.
Curr Med Chem ; 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38797911

RESUMO

COVID-19 has emerged as the most significant global health issue of our time. The causative agent, SARS-CoV-2, causes extensive damage to the lower respiratory tract in susceptible populations, leading to lung damage and death. COVID-19-infected patients are also prone to respiratory pathogens such as Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella pneumoniae, and E. coli. In some cases, these respiratory pathogens are multidrug-resistant and cause life-threatening infections in patients. Since the existing antibiotics are ineffective against these antibiotic-resistant bacteria, urgent attention is required to develop new and effective therapeutic agents to combat antimicrobial-resistant bacteria. Alternatively, novel therapeutic strategies can be explored to enhance the antimicrobial effects of the existing antimicrobial agents, such as antibiotics. Adding natural compounds with existing antimicrobial agents to increase their antimicrobial activity is one of the most suitable and promising options to combat the rising threat of both COVID-19 and antimicrobial resistance. Natural compounds are generally considered safe and may even reduce the side effects of drugs and medicines. In light of such advantages, the current review summarized some of the studies that have combined natural compounds with antibiotics and antiviral to increase the antimicrobial potential of these drugs. This study can help researchers compare and understand already existing data to design new studies to develop antimicrobial agents against COVID-19.

7.
Crit Rev Anal Chem ; : 1-30, 2024 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-38753964

RESUMO

Due to their life cycle, viruses can disrupt the metabolism of their hosts, causing diseases. If we want to disrupt their life cycle, it is necessary to identify their presence. For this purpose, it is possible to use several molecular-biological and bioanalytical methods. The reference selection was performed based on electronic databases (2020-2023). This review focused on electrochemical methods with high sensitivity and selectivity (53% voltammetry/amperometry, 33% impedance, and 12% other methods) which showed their great potential for detecting various viruses. Moreover, the aforementioned electrochemical methods have considerable potential to be applicable for care-point use as they are portable due to their miniaturizability and fast speed analysis (minutes to hours), and are relatively easy to interpret. A total of 2011 articles were found, of which 86 original papers were subsequently evaluated (the majority of which are focused on human pathogens, whereas articles dealing with plant pathogens are in the minority). Thirty-two species of viruses were included in the evaluation. It was found that most of the examined research studies (77%) used nanotechnological modifications. Other ones performed immunological (52%) or genetic analyses (43%) for virus detection. 5% of the reports used peptides to increase the method's sensitivity. When evaluable, 65% of the research studies had LOD values in the order of ng or nM. The vast majority (79%) of the studies represent proof of concept and possibilities with low application potential and a high need of further research experimental work.

8.
Curr Med Chem ; 2024 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-38757324

RESUMO

Periodontitis is a complex polymicrobial disease of the oral cavity that affects tooth-supporting tissues. It is caused by multiple factors, such as pathogenic bacteria, genetic predisposition, and host immune response factors. The pathogenesis of periodontal disease involves the complex interrelations among bacterial toxins, several populations of cells, and host cell-secreted inflammatory mediators. Generally, periodontitis is characterized by the formation of intricate and varied biofilms of microbes on the tooth surface, commonly known as dental plaque. Activation of defense cells is characterized by releasing inflammatory mediators, such as proteases, acidic metabolites, cytokines, interleukins, and chemokines, which destroy tissue and ultimately cause bone resorption. The individual periodontal condition has a significant impact on systemic homeostasis, and its disruption can cause the development of some metabolic disorders. This review article summarizes the latest studies on the pathogenesis of periodontitis and describes the role of inflammatory mediators and genetic polymorphism in individuals, as well as relationships with some metabolic conditions. The information is collected from PubMed, Scopus, ScienceDirect, SpringerLink, and clinicaltrials.gov.

9.
Curr Med Chem ; 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38644711

RESUMO

The anti-aging effects of alpha-lipoic acid (αLA), a natural antioxidant synthesized in human tissues, have attracted a growing interest in recent years. αLA is a short- -chain sulfur-containing fatty acid occurring in the mitochondria of all kinds of eukaryotic cells. Both the oxidized disulfide of αLA and its reduced form (dihydrolipoic acid, DHLA) exhibit prominent antioxidant function. The amount of αLA inside the human body gradually decreases with age resulting in various health disorders. Its lack can be compensated by supplying from external sources such as dietary supplements or medicinal dosage forms. The primary objectives of this study were the analysis of updated information on the latest two-decade research regarding the use of αLA from an anti-aging perspective. The information was collected from PubMed, Wiley Online Library, Scopus, ScienceDirect, SpringerLink, Google Scholar, and clinicaltrials.gov. Numerous in silico, in vitro, in vivo, and clinical studies revealed that αLA shows a protective role in biological systems by direct or indirect reactive oxygen/nitrogen species quenching. αLA demonstrated beneficial properties in the prevention and treatment of many age-related disorders such as neurodegeneration, metabolic disorders, different cancers, nephropathy, infertility, and skin senescence. Its preventive effects in case of Alzheimer's and Parkinson's diseases are of particular interest. Further mechanistic and clinical studies are highly recommended to evaluate the wide spectrum of αLA therapeutic potential that could optimize its dietary intake for prevention and alleviation disorders related to aging.

10.
Curr Med Chem ; 31(12): 1428-1440, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38572614

RESUMO

Iron (Fe) is a necessary trace element in numerous pathways of human metabolism. Therefore, Fe deficiency is capable of causing multiple health problems. Apart from the well-known microcytic anemia, lack of Fe can cause severe psychomotor disorders in children, pregnant women, and adults in general. Iron deficiency is a global health issue, mainly caused by dietary deficiency but aggravated by inflammatory conditions. The challenges related to this deficiency need to be addressed on national and international levels. This review aims to summarize briefly the disease burden caused by Fe deficiency in the context of global public health and aspires to offer some hands-on guidelines.


Assuntos
Anemia Ferropriva , Deficiências de Ferro , Adulto , Criança , Humanos , Feminino , Gravidez , Anemia Ferropriva/etiologia , Saúde Global , Saúde Pública , Alimentos Fortificados
11.
Curr Pharm Des ; 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38685809

RESUMO

COVID-19 is a viral disease that infects the lower airways, causing severe acute respiratory syndrome (SARS) and fatal pneumonia. The ripple effect of the COVID-19 outbreak has created serious problems in the healthcare systems of many countries and had far-reaching consequences for the global economy. Thus, effective control measures should be implemented for this coronavirus infection in the future. The ongoing episode of the SARS-CoV-2 sickness, COVID-19, in China, and the subsequent irregular spread of contamination to different nations, has alarmed the clinical and academic community primarily due to the deadly nature of this disease. Being a newly identified virus in the viral classification and having the highest mutation rate, rapid therapeutics are not readily available for treating this ailment, leading to the widespread of the disease and causing social issues for affected individuals. Evidence of Ayurveda and traditional Chinese medicine (TCM) has been found in ancient civilizations, such as those of the Hindus, Babylonians, Hebrews, and Arabs. Although TCM and Ayurvedic herbs do not promise to be very effective treatments for this pandemic, they can reduce infectivity and virulence by enhancing immunity and showing effectiveness in rehabilitation after COVID-19 disease. Thus, they could be used as sources of inhibitor molecules for certain phenomena, such as viral replication, attachment to the host, 3CL protease inhibition, 3a ion channel inhibitors, and reverse transcription inhibition. Medicinal plants from TCM and Ayurveda and their biologically active phytoconstituents can effectively modulate the targets and pathways relevant to inflammation and immune responses in human bodies. The present review analyzes the role of certain TCM and Ayurvedic medicinal plants in healing COVID-19 infection. Medicinal plants such as Glycyrrhiza glabra (licorice), Curcuma longa (turmeric), and Zingiber officinale (ginger) are regarded as the main antiviral herbs. Their extracts and individual bioactive compounds could be used as potential substances for developing remedies to prevent or cure the coronavirus disease. Generally, antiviral phytochemicals obtained from natural sources are considered potent candidates for fighting COVID-19 infection and rehabilitation after it.

12.
Curr Pharm Des ; 30(14): 1060-1074, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38523518

RESUMO

The epidemic prompted by COVID-19 continues to spread, causing a great risk to the general population's safety and health. There are still no drugs capable of curing it. Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS) are the two other diseases caused by coronaviruses. Traditional Chinese Medicine (TCM) showed benefits in treating SARS and MERS by preventing the disease early, substantially mitigating symptoms, shortening the treatment period, and minimizing risks and adverse reactions caused by hormone therapy. Although several vaccines have been developed and are being used for the treatment of COVID-19, existing vaccines cannot provide complete protection against the virus due to the rapid evolution and mutation of the virus, as mutated viral epitopes evade the vaccine's target and decrease the efficacy of vaccines. Thus, there is a need to develop alternative options. TCM has demonstrated positive effects in the treatment of COVID-19. Previous research studies on TCM showed broad-spectrum antiviral activity, offering a range of possibilities for their potential use against COVID-19. This study shed some light on common TCM used for SARS and MERS outbreaks and their effective use for COVID-19 management. This study provides new insights into COVID-19 drug discovery.


Assuntos
Antivirais , Tratamento Farmacológico da COVID-19 , COVID-19 , Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , SARS-CoV-2 , Humanos , Medicina Tradicional Chinesa/métodos , Antivirais/uso terapêutico , Antivirais/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Medicamentos de Ervas Chinesas/farmacologia , SARS-CoV-2/efeitos dos fármacos , Farmacopeias como Assunto
13.
Curr Med Chem ; 2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38509683

RESUMO

Obesity is the most pervasive metabolic disorder, further linked with many other diseases, including diabetes, hypertension, cardiovascular disorders, and sleep apnea. To control the increasing weight of obese individuals, experts usually recommend exercise and lifestyle alterations, but medication and surgeries are also advised in severe cases. FDA-approved obesity-controlling drugs are effective but possess certain adverse effects, including dry mouth, drug abuse, dysregulation in monoamine neurotransmitters, insomnia, and many more. Medication processes are expensive; researchers have focused on safer and more effective alternative approaches than pharmaceutical drugs. Since ancient times, a diverse array of herbal plants have been used due to their therapeutic effect, as in-vitro and in-vivo experimentations have proved the effectiveness of herbal plants with no mortality. In this review, we have presented various herbs with their metabolically active secondary metabolites, including Berberis vulgaris L, Rhizoma Coptidis, Radix Lithospermi, Aloe vera, Clerodendrum multiflorum Burm f., Astragalus membranaceus (Fisch), Boerhaavia diffusa, Achyranthes aspera L., etc. All of these herbs are responsible for anti-obesity, anti-diabetic, and anti-inflammatory effects. Most of the previously published clinical trials and animal studies that confirmed the significant potential of these herbal plants and their active ingredients to reduce weight by decreasing the accumulated fats in the body have also been discussed in this review. Thus, it is concluded that scientists must consider and utilize these natural treasures for safe, effective, and cost-effective treatment. It will open new and novel ways for treatment regimes.

14.
Mol Neurobiol ; 2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38472652

RESUMO

This paper examines the role of dietary peptides gluten and casein in modulating brain function in individuals with autism spectrum disorder (ASD) from a biochemical perspective. Neurotransmitter systems and neural networks are crucial for brain function, and alterations at the biochemical level can contribute to the characteristic symptoms and behaviors of ASD. The paper explores how dietary peptides influence neurotransmitter systems and neural networks, highlighting their potential as interventions to improve brain function in ASD. The evidence suggests that dietary peptides can impact neurotransmitter synthesis, release, and receptor interactions, disrupting the balance of neurotransmitter systems and affecting neural network function. The findings underscore the potential of dietary interventions in modulating brain function in ASD and call for further research to elucidate the underlying mechanisms and optimize clinical practice. Considering individual dietary sensitivities and preferences, personalized dietary approaches may be necessary for optimal outcomes. Dietary interventions' timing, duration, and integration with other evidence-based treatments are crucial considerations. Safety considerations and regular monitoring are important to ensure the implementation of dietary interventions safely and effectively.

15.
Biometals ; 37(4): 895-904, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38329650

RESUMO

The relationship between the levels of essential elements and various aspects of well-being in environmentally exposed populations still needs to be better understood. The present study aims to investigate the potential connections between serum concentrations of calcium (Ca), magnesium (Mg), and quality of life (QoL) in environmentally exposed populations in Kazakhstan. The present study involved 1881 nominally healthy individuals aged 18-52 years who were permanent residents of Abay, Borodulikha, Ust-Kamenogorsk, Kurchum, Uralsk, Aksay, and Berezovka settlements. These settlements were selected to represent different types of environmental exposure: radioactive fallout from the Semipalatinsk Nuclear Test Site (SNTS), non-ferrous metallurgy, and the condensate gas field, compared to environmentally unexposed territories. The Russian version of the SF-36 questionnaire was used to assess the participants' quality of life. Serum Ca levels were measured using colorimetry with O-cresolphthalein, and serum Mg concentrations were measured using colorimetry with xylidyl blue. Both elevated and decreased serum Ca levels were more frequently observed in the environmentally exposed populations. The prevalence of hypermagnesemia was highest among residents near the condensate gas field. Environmentally exposed populations residing near the SNTS and in Ust-Kamenogorsk exhibited lower scores in some QoL domains. In contrast, people near the condensate gas field showed comparable or even higher QoL scores than the control population. Only serum Mg demonstrated a significant association with the average QoL scores, while Ca did not show such an association. These findings have important implications for public health interventions.


Assuntos
Cálcio , Exposição Ambiental , Magnésio , Qualidade de Vida , Humanos , Magnésio/sangue , Cazaquistão , Adulto , Cálcio/sangue , Feminino , Pessoa de Meia-Idade , Adolescente , Masculino , Adulto Jovem
16.
Curr Med Chem ; 2024 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-38415440

RESUMO

BACKGROUND: Iron deficiency and iron-related disorders are common health issues worldwide, affecting a significant proportion of the population. Diagnosis and management of these disorders rely heavily on using various iron-related biomarkers that can provide valuable clinical information. OBJECTIVE: This review article provides an overview of the most commonly used iron-related biomarkers, including serum ferritin, transferrin saturation, soluble transferrin receptor, zinc protoporphyrin, and free erythrocyte protoporphyrin. Other emerging biomarkers, such as hepcidin and retinol-binding protein 4, are also discussed. RESULTS: Iron plays a vital role in various physiological processes, including oxygen transport, energy metabolism, and DNA synthesis. The article highlights the advantages and limitations of iron biomarkers and their clinical applications in diagnosing and managing iron deficiency and iron-related anemia. CONCLUSION: Using iron-related biomarkers in screening and monitoring programs can improve patient outcomes and reduce healthcare costs.

17.
Curr Med Chem ; 31(17): 2345-2360, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38204225

RESUMO

Existing evidence indicates that environmental factors might contribute up to 50% of the variance in autism spectrum disorder (ASD) risk. This structured narrative review offers a comprehensive synthesis of current knowledge on environmental risk factors in ASD, including evaluation of conflicting evidence, exploration of underlying mechanisms, and suggestions for future research directions. Analysis of diverse epidemiological investigations indicates that certain environmental factors, including advanced parental age, preterm birth, delivery complications, and exposure to toxic metals, drugs, air pollutants, and endocrine-disrupting chemicals, are linked to an increased ASD risk through various mechanisms such as oxidative stress, inflammation, hypoxia, and its consequences, changes in neurotransmitters, disruption of signaling pathways and some others. On the other hand, pregnancy-related factors such as maternal diabetes, maternal obesity, and caesarian section show a weaker association with ASD risk. At the same time, other environmental factors, such as vaccination, maternal smoking, or alcohol consumption, are not linked to the risk of ASD. Regarding nutritional elements data are inconclusive. These findings highlight the significance of environmental factors in ASD etiology and emphasize that more focused research is needed to target the risk factors of ASD. Environmental interventions targeting modifiable risk factors might offer promising avenues for ASD prevention and treatment.


Assuntos
Transtorno do Espectro Autista , Transtorno do Espectro Autista/epidemiologia , Transtorno do Espectro Autista/etiologia , Humanos , Fatores de Risco , Gravidez , Exposição Ambiental/efeitos adversos , Feminino , Poluentes Ambientais/toxicidade , Disruptores Endócrinos/efeitos adversos , Disruptores Endócrinos/toxicidade
18.
Mol Neurobiol ; 2024 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-38296898

RESUMO

This article explores the potential link between endocrine-disrupting chemicals (EDCs), neuroinflammation, and the development of autism spectrum disorder (ASD). Neuroinflammation refers to the immune system's response to injury, infection, or disease in the central nervous system. Studies have shown that exposure to EDCs, such as bisphenol A and phthalates, can disrupt normal immune function in the brain, leading to chronic or excessive neuroinflammation. This disruption of immune function can contribute to developing neurological disorders, including ASD. Furthermore, EDCs may activate microglia, increasing pro-inflammatory cytokine production and astroglia-mediated oxidative stress, exacerbating neuroinflammation. EDCs may also modulate the epigenetic profile of cells by methyltransferase expression, thereby affecting neurodevelopment. This article also highlights the importance of reducing exposure to EDCs and advocating for policies and regulations restricting their use. Further research is needed to understand better the mechanisms underlying the link between EDCs, neuroinflammation, and ASD and to develop new treatments for ASD.

19.
Curr Med Chem ; 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38173070

RESUMO

The potential association between aluminum-containing deodorants/antiperspirants and breast cancer has been investigated and debated. This paper comprehensively analyzes existing literature to examine the evidence and provide insights into this relationship. This comprehensive review discusses aspects related to the absorption and distribution of aluminum compounds, its effects on the induction of oxidative stress, the estrogenic activity of aluminum, and potential disruption of hormonal pathways, and the potential role in breast cancer induction. Currently, available research, consisting of epidemiological studies as well as clinical trials, together with meta-analyses and previously published reviews conducted on identifying the relationship between aluminum-containing deodorants/antiperspirants and the risk of breast cancer were also analyzed and discussed. Societal factors, personal hygiene considerations, and lifestyle changes contribute to the increased usage of antiperspirants, but they do not establish a direct causal connection with breast cancer. Further research employing larger-scale studies and rigorous methodologies must validate the existing findings and explore the underlying mechanisms involved. Continued multidisciplinary research efforts and collaboration between researchers, regulatory bodies, and public health authorities are vital to developing a more definitive understanding of this complex topic.

20.
Curr Med Chem ; 2024 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-38243982

RESUMO

alanine (BA), being a non-proteinogenic amino acid, is an important constituent of L-carnosine (LC), which is necessary for maintaining the muscle buffering capacity and preventing a loss of muscle mass associated with aging effects. BA is also very important for normal human metabolism due to the formation of a part of pantothenate, which is incorporated into coenzyme A. BA is synthesized in the liver, and its combination with histidine results in the formation of LC, which accumulates in the muscles and brain tissues and has a well-defined physiological role as a good buffer for the pH range of muscles that caused its rapidly increased popularity as ergogenic support to sports performance. The main antioxidant mechanisms of LC include reactive oxygen species (ROS) scavenging and chelation of metal ions. With age, the buffering capacity of muscles also declines due to reduced concentration of LC and sarcopenia. Moreover, LC acts as an antiglycation agent, ultimately reducing the development of degenerative diseases. LC has an anti-inflammatory effect in autoimmune diseases such as osteoarthritis. As histidine is always present in the human body in higher concentrations than BA, humans have to get BA from dietary sources to support the required amount of this critical constituent to supply the necessary amount of LC synthesis. Also, BA has other beneficial effects, such as preventing skin aging and intestinal damage, improving the stress-- fighting capability of the muscle cells, and managing an age-related decline in memory and learning. In this review, the results of a detailed analysis of the role and various beneficial properties of BA and LC from the anti-aging perspective.

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