-
Antioxidants (Basel, Switzerland) Oct 2021Chronic obstructive pulmonary disease (COPD) is a progressive disease that is characterized by a state of persistent inflammation and oxidative stress. The presence of... (Review)
Review
Chronic obstructive pulmonary disease (COPD) is a progressive disease that is characterized by a state of persistent inflammation and oxidative stress. The presence of oxidative stress in COPD is the result of an imbalance between pro-oxidant and antioxidant mechanisms. The aim of this review was to investigate a possible association between glutathione peroxidase (GPx), a key component of antioxidant defense mechanisms, and COPD. A systematic search for relevant studies was conducted in the electronic databases PubMed, Web of Science, Scopus, and Google Scholar, from inception to June 2021. Standardized mean differences (SMDs) were used to express the differences in GPx concentrations between COPD patients and non-COPD subjects. Twenty-four studies were identified. In 15 studies assessing whole blood/erythrocytes (GPx isoform 1), the pooled results showed that GPx concentrations were significantly lower in patients with COPD (SMD = -1.91, 95% CI -2.55 to -1.28, < 0.001; moderate certainty of evidence). By contrast, in 10 studies assessing serum/plasma (GPx isoform 3), the pooled results showed that GPx concentrations were not significantly different between the two groups (very low certainty of evidence). The concentration of GPx-1, but not GPx-3, is significantly lower in COPD patients, suggesting an impairment of antioxidant defense mechanisms in this group.
PubMed: 34829616
DOI: 10.3390/antiox10111745 -
International Journal of Environmental... Nov 2022Inflammation is considered to be a vital defense mechanism for health, acting as a protective response of the immune system through a satisfactory inflammatory biomarker... (Review)
Review
BACKGROUND
Inflammation is considered to be a vital defense mechanism for health, acting as a protective response of the immune system through a satisfactory inflammatory biomarker response (IBR). IBR, as well as being beneficial to the organism, can be also responsible for a variety of chronic inflammatory diseases. Whole-body vibration (WBV) exercise is a type of physical exercise that can act on inflammation responses due its capacity for stimulating the sensory components that promote systemic responses. The objective of this study was to investigate the effects of WBV on IBR in different clinical status.
METHODS
This is a systematic review that includes randomized controlled trials (RCTs) on the effects of WBV exercise on IBR. The methodological quality, risk of bias, and level of evidence were rated.
RESULTS
Four RCTs met the selection criteria. The studies showed benefits associated with IBR (e.g., cytokines, adipokines, and C-reactive protein) in various clinical conditions, including healthy populations and some chronic diseases (such as obesity, aging disorders, and knee osteoarthritis), using several WBV protocols.
CONCLUSIONS
WBV might be useful in the management of inflammatory conditions.
Topics: Humans; Vibration; Physical Therapy Modalities; Osteoarthritis, Knee; Biomarkers; Inflammation
PubMed: 36429572
DOI: 10.3390/ijerph192214853 -
Current HIV/AIDS Reports Aug 2023Sexual and gender minority (SGM) individuals are diagnosed with HIV at disproportionate rates, and hazardous alcohol use can increase their HIV risk. This review... (Review)
Review
PURPOSE OF REVIEW
Sexual and gender minority (SGM) individuals are diagnosed with HIV at disproportionate rates, and hazardous alcohol use can increase their HIV risk. This review assessed the state of the literature examining interventions for addressing alcohol use and sexual HIV risk behaviors among SGM individuals.
RECENT FINDINGS
Fourteen manuscripts from 2012 to 2022 tested interventions that address both alcohol use and HIV risk behaviors among SGM populations, with only 7 randomized controlled trials (RCTs). Virtually all the interventions targeted men who have sex with men, with none focused on transgender populations or cisgender women. While they demonstrated some evidence of effectiveness in reducing alcohol use and/or sexual risk, the outcomes varied widely between studies. More research is needed that tests interventions in this area, particularly for transgender individuals. The use of larger-scale RCTs with diverse populations and standardized outcome measures are needed to strengthen the evidence base.
Topics: Male; Female; Humans; HIV Infections; Sexual and Gender Minorities; Sexual Behavior; Alcohol Drinking; Transgender Persons; Gender Identity
PubMed: 37225923
DOI: 10.1007/s11904-023-00660-2 -
Clinical Journal of the American... Sep 2022Gender-affirming hormone therapy modifies body composition and lean muscle mass in transgender persons. We sought to characterize the change in serum creatinine, other... (Meta-Analysis)
Meta-Analysis
BACKGROUND AND OBJECTIVES
Gender-affirming hormone therapy modifies body composition and lean muscle mass in transgender persons. We sought to characterize the change in serum creatinine, other kidney function biomarkers, and GFR in transgender persons initiating masculinizing and feminizing gender-affirming hormone therapy.
DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS
We searched PubMed, EMBASE, the Cochrane Library, and ClinicalTrials.gov from inception to September 16, 2020 for randomized controlled trials, observational studies, and case series that evaluated the change in serum creatinine, other kidney function biomarkers, and GFR before and after the initiation of gender-affirming hormone therapy in adult transgender persons. Two reviewers independently screened and abstracted data, and disagreements were resolved by a third reviewer. A random effects meta-analysis was performed to determine the change in outcomes over follow-up of 3, 6, and 12 months.
RESULTS
Of the 4758 eligible studies, 26 met the inclusion criteria, including nine studies that recruited 488 transgender men and 593 women in which data were meta-analyzed. There was heterogeneity in study design, populations, gender-affirming hormone therapy routes, and dosing. At 12 months after initiating gender-affirming hormone therapy, serum creatinine increased by 0.15 mg/dl (95% confidence interval, 0.00 to 0.29) in 370 transgender men and decreased by -0.05 mg/dl (95% confidence interval, -0.16 to 0.05) in 361 transgender women. No study reported the effect of gender-affirming hormone therapy on albuminuria, proteinuria, cystatin C, or measured GFR.
CONCLUSIONS
Gender-affirming hormone therapy increases serum creatinine in transgender men and does not affect serum creatinine in transgender women. The effect on gender-affirming hormone therapy on other kidney function biomarkers and measured GFR is unknown.
CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER
Change in Kidney Function Biomarkers in Transgender Persons on Gender Affirmation Hormone Therapy-A Systematic Review and Meta-Analysis, CRD42020214248.
Topics: Male; Adult; Humans; Female; Creatinine; Transsexualism; Biomarkers; Hormones; Kidney
PubMed: 35973728
DOI: 10.2215/CJN.01890222 -
Pharmaceuticals (Basel, Switzerland) Jun 2022Autosomal recessive cerebellar ataxias (ARCAs) are a heterogeneous group of rare neurodegenerative inherited disorders. The resulting motor incoordination and... (Review)
Review
Autosomal recessive cerebellar ataxias (ARCAs) are a heterogeneous group of rare neurodegenerative inherited disorders. The resulting motor incoordination and progressive functional disabilities lead to reduced lifespan. There is currently no cure for ARCAs, likely attributed to the lack of understanding of the multifaceted roles of antioxidant defense and the underlying mechanisms. This systematic review aims to evaluate the extant literature on the current developments of therapeutic strategies that target oxidative stress for the management of ARCAs. We searched PubMed, Web of Science, and Science Direct Scopus for relevant peer-reviewed articles published from 1 January 2016 onwards. A total of 28 preclinical studies fulfilled the eligibility criteria for inclusion in this systematic review. We first evaluated the altered cellular processes, abnormal signaling cascades, and disrupted protein quality control underlying the pathogenesis of ARCA. We then examined the current potential therapeutic strategies for ARCAs, including aromatic, organic and pharmacological compounds, gene therapy, natural products, and nanotechnology, as well as their associated antioxidant pathways and modes of action. We then discussed their potential as antioxidant therapeutics for ARCAs, with the long-term view toward their possible translation to clinical practice. In conclusion, our current understanding is that these antioxidant therapies show promise in improving or halting the progression of ARCAs. Tailoring the therapies to specific disease stages could greatly facilitate the management of ARCAs.
PubMed: 35745683
DOI: 10.3390/ph15060764 -
Evidence-based Complementary and... 2023With a 30-fold increase in incidence over the previous 50 years, dengue fever is now the most widespread viral disease transmitted by mosquitoes in the world. The... (Review)
Review
With a 30-fold increase in incidence over the previous 50 years, dengue fever is now the most widespread viral disease transmitted by mosquitoes in the world. The intricate interaction of the human defense system, hereditary predisposition, and specific bitterness elements is more likely to be the pathogenesis of dengue. There are presently no viable treatments for dengue. Synthetic drugs which are used against this ailment also show major side effects. There must be a deeper understanding of the underlying mechanism generating severe symptoms to develop auguring markers, cutting-edge diagnostics, and treatments and finally a well-rounded and secure antiserum. Hence, the aim is to search for safer and more potent drugs derived from plants. Plants or herbs are mainly targeting replication or its enzyme or specific stereotypes, though an exact mechanism of phytoconstituents interfering with the viral replication is still undiscovered. The present attempt provided the update with the objective to bringing up forward pathophysiological eventualities involved in dengue virus along with the naturally derived treatment relevant to provide the impregnable therapy by evading the noxious symptoms for dengue fever. , , magnolia berry, and Chinese ginger are such plants exhibiting many effective phytoconstituents against DENV and can be further explored for novel drug discovery by medicinal scientists.
PubMed: 36818227
DOI: 10.1155/2023/2236210 -
Frontiers in Plant Science 2021Herbivore oviposition produces all sorts of responses in plants, involving wide and complex genetic rearrangements. Many transcriptomic studies have been performed to...
Herbivore oviposition produces all sorts of responses in plants, involving wide and complex genetic rearrangements. Many transcriptomic studies have been performed to understand this interaction, producing a bulk of transcriptomic data. However, the use of many transcriptomic techniques across the years, the lack of comparable transcriptomic context at the time of publication, and the use of outdated databases are limitations to understand this biological process. The current analysis intends to retrieve oviposition studies and process them with up-to-date techniques and updated databases. To reduce heterogeneities, the same processing techniques were applied, and Arabidopsis was selected to avoid divergencies on plant taxa stress response strategies. By doing so, we intended to understand the major mechanisms and regulatory processes linked to oviposition response. Differentially expressed gene (DEG) identification and co-expression network-based analyses were the main tools to achieve this goal. Two microarray studies and three RNA-seq analyses passed the screening criteria. The collected data pertained to the lepidopteran and the mite , and covered a timeline from 3 to 144 h. Among the 18, 221 DEGs found, 15, 406 were exclusive of (72 h) and 801 were exclusive for the rest of the experiments. Excluding (72 h), shared genes on the rest of the experiments were twice the unique genes, indicating common response mechanisms were predominant. Enrichment analyses indicated that shared processes were circumscribed to earlier time points, and after 24 h, the divergences escalated. The response was characterized by patterns of time-dependent waves of unique processes. oviposition induced a rich response that shared functions across time points, while eggs triggered less but more diverse time-dependent functions. The main processes altered were associated with hormonal cascades [e.g., salicilic acid (SA) and jasmonic acid (JA)], defense [reactive oxygen species (ROS) and glucosinolates], cell wall rearrangements, abiotic stress responses, and energy metabolism. Key gene drivers of the identified processes were also identified and presented. The current results enrich and clarify the information regarding the molecular behavior of the plant in response to oviposition by herbivores. This information is valuable for multiple stress response engineering tools, among other applications.
PubMed: 35126411
DOI: 10.3389/fpls.2021.772492 -
Frontiers in Immunology 2022Pulmonary diseases represent four out of ten most common causes for worldwide mortality. Thus, pulmonary infections with subsequent inflammatory responses represent a...
Pulmonary diseases represent four out of ten most common causes for worldwide mortality. Thus, pulmonary infections with subsequent inflammatory responses represent a major public health concern. The pulmonary barrier is a vulnerable entry site for several stress factors, including pathogens such as viruses, and bacteria, but also environmental factors e.g. toxins, air pollutants, as well as allergens. These pathogens or pathogen-associated molecular pattern and inflammatory agents e.g. damage-associated molecular pattern cause significant disturbances in the pulmonary barrier. The physiological and biological functions, as well as the architecture and homeostatic maintenance of the pulmonary barrier are highly complex. The airway epithelium, denoting the first pulmonary barrier, encompasses cells releasing a plethora of chemokines and cytokines, and is further covered with a mucus layer containing antimicrobial peptides, which are responsible for the pathogen clearance. Submucosal antigen-presenting cells and neutrophilic granulocytes are also involved in the defense mechanisms and counterregulation of pulmonary infections, and thus may directly affect the pulmonary barrier function. The detailed understanding of the pulmonary barrier including its architecture and functions is crucial for the diagnosis, prognosis, and therapeutic treatment strategies of pulmonary diseases. Thus, considering multiple side effects and limited efficacy of current therapeutic treatment strategies in patients with inflammatory diseases make experimental and models necessary to improving clinical therapy options. This review describes existing models for studyying the pulmonary barrier function under acute inflammatory conditions, which are meant to improve the translational approaches for outcome predictions, patient monitoring, and treatment decision-making.
Topics: Air Pollutants; Antigen-Presenting Cells; Antimicrobial Peptides; Chemokines; Cytokines; Granulocytes; Humans; Lung; Mucus; Pneumonia
PubMed: 35874776
DOI: 10.3389/fimmu.2022.895100 -
AIDS Patient Care and STDs Jun 2022HIV pre-exposure prophylaxis (PrEP) is highly effective at preventing HIV; however, PrEP use among transgender individuals remains low. We conducted a systematic review...
HIV pre-exposure prophylaxis (PrEP) is highly effective at preventing HIV; however, PrEP use among transgender individuals remains low. We conducted a systematic review to identify barriers and facilitators to PrEP uptake, adherence, and persistence among transgender individuals in the United States. We conducted a literature search in PubMed and CINAHL databases in March 2021 and followed PRISMA guidelines. Studies were eligible if they were published in a peer-reviewed journal and reported interest, uptake, adherence, and/or persistence of PrEP use among transgender individuals. Articles that did not disaggregate results for transgender participants were excluded. Data from included articles were coded using content analysis and narratively synthesized using a framework matrix. We screened 254 unique articles published after US Food and Drug Administration approval of PrEP, and 33 articles were included in the review. Five themes were identified in the literature, including (1) PrEP concentrations were lower among individuals taking feminizing hormones, but the difference did not appear clinically significant; (2) concerns regarding interactions between gender-affirming hormone therapy and PrEP remain a large barrier; (3) PrEP initiation may facilitate increased self-advocacy and self-acceptance; (4) lack of trust in medical institutions impacts PrEP uptake; and (5) social networks have a significant influence on PrEP knowledge, interest, and adherence. Additional research is needed involving transgender men and nonbinary persons, and efforts to improve PrEP persistence among the transgender community are needed. Training health care providers to provide inclusive and affirming care is perhaps one of the strongest areas for intervention to increase PrEP uptake and persistence.
Topics: Anti-HIV Agents; HIV Infections; Homosexuality, Male; Humans; Male; Pre-Exposure Prophylaxis; Transgender Persons; Transsexualism; United States
PubMed: 35687813
DOI: 10.1089/apc.2021.0236 -
BMC Public Health Dec 2023Evidence from many parts of the world shows that sexual and gender minority (SGM) people have poorer health than their cisgender heterosexual counterparts. Minority... (Review)
Review
Health disparities in one of the world's most progressive countries: a scoping review of mental health and substance use among sexual and gender minority people in the Netherlands.
BACKGROUND
Evidence from many parts of the world shows that sexual and gender minority (SGM) people have poorer health than their cisgender heterosexual counterparts. Minority stressors, particularly stigma and discrimination, have been identified as major contributors to sexual orientation- and gender identity-related health disparities, particularly negative mental health and behavioral health outcomes. To better understand factors that contribute to these disparities, we conducted a scoping review of SGM mental health and substance use research in the Netherlands-a country with a long-standing reputation as a pioneer in SGM equality.
METHODS
Using Joanna Briggs Institute guidelines and the PRISMA-ScR protocol, we searched seven databases to identify studies published between 2010 and 2022 that focused on substance use and/or mental health of SGM youth and adults in the Netherlands.
RESULTS
Although there was some evidence that SGM people in the Netherlands report fewer substance use and mental health concerns than those in less progressive countries, with very few exceptions studies found poorer outcomes among SGM participants than cisgender, heterosexual participants. However, this observation must be considered cautiously given major gaps in the literature. For example, only one study focused exclusively on adult sexual minority women, two focused on older SGM adults, and very little attention was given to nonbinary individuals. Most studies used non-probability samples that were quite homogenous. Many studies, especially those with youth, assessed sexual orientation based on sexual attraction; some studies of adults operationalized SGM status as having a same-sex partner. Importantly, we found no studies that directly assessed associations between structural-level stigma and health outcomes. Studies were mostly focused at the individual level and on health problems; very little attention was given to strengths or resilience.
CONCLUSIONS
Findings of persistent health disparities-despite the relatively long history of SGM supportive policies in the Netherlands-highlight the need for more research and greater attention to population groups that have been underrepresented. Such research would not only provide guidance on strategies to improve the health of SGM people in the Netherlands, but also in other countries that are seeking to reduce health inequities. Addressing SGM health disparities in the Netherlands and elsewhere is complex and requires a multifaceted approach that addresses individual, interpersonal and structural factors.
Topics: Adult; Adolescent; Humans; Female; Male; Gender Identity; Mental Health; Netherlands; Sexual Behavior; Sexual and Gender Minorities; Substance-Related Disorders
PubMed: 38110908
DOI: 10.1186/s12889-023-17466-x