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Exposure to particulate matter (PM) can be considered as a factor affecting human health. The aim of this study was to investigate the concentration of PM 2.5 and heavy metals and their influence on survival of A549 human lung cells in exposure to PM 2.5 breathing air of Ahvaz city. In order to assess the levels of PM 2.5 and heavy metals, air samples were collected from 14 sampling stations positioned across Ahvaz city during both winter and summer seasons. The concentration of heavy metals was determined using ICP OES. Next, the MTT assay [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] was employed to ascertain the survival rate of A549 cells. The findings from this research demonstrated that average PM 2.5 of the study period was (149.5 μg/m 3 ). Also, the average concentration of PM 2.5 in the urban area in winter and summer was (153.3- and 106.9 μg/m 3 ) and in the industrial area this parameter was (191.6 and 158.3 μg/m 3 ). The average concentration of metals (ng/m 3 ) of urban areas against industrial, Al (493 vs. 485), Fe (536 vs. 612), Cu (198 vs. 212), Ni (128 vs. 129), Cr (48.5 vs. 54), Cd (118 vs. 124), Mn (120 vs. 119), As (51 vs. 67), Hg (37 vs. 50), Zn (302 vs. 332) and Pb (266 vs. 351) were obtained. The results of the MTT assay showed that the highest percentage of cell survival according to the exposure concentration was 25 > 50 > 100 > 200. Also, the lowest percentage of survival (58.8%) was observed in the winter season and in industrial areas with a concentration of 200 μg/ml. The carcinogenic risk assessment of heavy metals indicated that except for Cr, whose carcinogenicity was 1.32E−03, other metals were in the safe range (10 –4 –10 –6 ) for human health. The high concentration of PM 2.5 and heavy metals can increase respiratory and cardiovascular diseases and reduce the public health level of Ahvaz citizens.

Date bunch drying and wilting disorder (DBDWD) manifests in the development stage of date fruits from the Kharak to the Rutab of development, coinciding with the occurrence of hot and dry winds. This phenomenon presents a significant and detrimental challenge for producers, resulting in substantial economic losses. The present study aimed to reduce this disorder in a randomized complete block design involving 10-year-old date palms (cv. Mazafati). The bunch tails of the palms were covered by the nanocomposite formulation of g-C 3 N 4 /ZnO/PVA (where g-C 3 N 4 denotes graphitic carbon nitride, ZnO refers to zinc oxide nanoparticles, and PVA represents polyvinyl alcohol) at two different concentrations (100 and 200 ppm) of ZnO nanoparticles at the early Kharak or Khalal stage of fruit development. The findings indicated that the covering of bunch tail with the g-C 3 N 4 /ZnO/PVA nanocomposite resulted in a significant reduction in DBDWD and an enhancement in both fruit quality and bunch yield. Specifically, g-C 3 N 4 /ZnO/PVA nanocomposite at concentrations of 100 and 200 ppm of ZnO nanoparticles led to reductions in DBDWD of 35 and 88%, respectively, along with increases in flavonoid content of 27 and 29% compared to the control group. Additionally, the covering of bunch tail with the g-C 3 N 4 /ZnO/PVA also resulted in a significant increase in both bunch yield and fruit phenolic content, as well as improvements in fruit weight, length, pulp weight, and the pulp-to-pit ratio relative to the control group. Consequently, the covering of bunch tail with the g-C 3 N 4 /ZnO/PVA effectively mitigates DBDWD while enhancing yield and fruit quality.

Background: Breast cancer is the most common cancer and the main cause of death because of malignant tumors in women, worldwide. The impact of Crocus sativus on several cancers has been discussed. Recent studies provide evidence regarding the anticancer properties of C. sativus and its bioactive constituents against breast cancer. This study aims to systematically review the efficacy of this botanical drug and its constituents on breast cancer, and their mechanism of action for the first time. Due to the lack of human studies in this field, the present research focused on preclinical studies. Methods: In this systematic review, scientific databases, including PubMed, Web of Sciences, Google Scholar, Scopus, and Scientific Information Database were explored profoundly. Preclinical studies published until the end of 2024 that had investigated the therapeutic properties of C. sativus, or its bioactive constituents including crocin, crocetin, safranal, or picrocrocin against breast cancer were selected. Results: Forty-four studies examining the effect of C. sativus or its bioactive constituents against breast cancer were obtained. Preclinical in vitro and in vivo studies have demonstrated the potential and targeted anticancer properties of the metabolites found in saffron (C. sativus). These metabolites, such as crocin, crocetin, and safranal, exhibit their anticancer effects through various mechanisms, including induction of apoptosis, modulation of the cell cycle, and other pathways. Conclusions: C. sativus and its constituents exerts their anticancer activity with different mechanisms. A considerable number of the included studies highlight induction of apoptosis and modulation of the cell cycle. The findings of our study suggest that certain compounds, particularly crocin and crocetin, have significant anticancer properties. In particular, crocin provided the highest level of evidence of efficacy in preclinical research, indicating its potential for further investigation.

This study explores how climate variables influenced the evolution and diversification of Neurergus newts within the Irano‐Anatolian biodiversity hotspot. We use a dated phylogenetic tree and climatic niche models to analyze their evolutionary history and ecological preferences. Using genetic data from nuclear (KIAA) and mitochondrial (16s and 12s) genes, we estimate divergence times and identify four major Neurergus clades. The initial speciation event occurred approximately 11.3 million years ago, coinciding with the uplift of the Zagros and Anatolian mountains. This geological transformation isolated newt populations, likely triggering the first speciation event. By integrating potential geographic distribution with climate variables, we reconstruct ancestral niche occupancy profiles. This highlights the critical roles of temperature and precipitation in shaping Neurergus habitat preferences and distribution. We observe both phylogenetic niche conservatism and divergence, with niche divergence playing a dominant role in diversification. This research emphasizes the complex interplay of geography, climate, and ecology in speciation and the vulnerability of isolated mountain newt populations to environmental changes. This study investigates the evolutionary history and ecological preferences of Neurergus newts in the Irano‐Anatolian hotspot. Using genetic and climate data, we identify four distinct newt lineages dating back 11.3 million years, coinciding with major geological shifts. The analysis suggests temperature and precipitation as key drivers of newt distribution, with both niche conservatism and divergence observed across the lineages. The findings highlight the complex interplay of geography, climate, and ecology in newt speciation and emphasize the vulnerability of these isolated mountain populations to changing environments.

Background Since December 2019, the outbreak of coronavirus pneumonia was observed in China and quickly propagate in all of the world. Nowadays, many trials are underway on this disease in which the efficacy of various therapeutic remedies including chemical or natural agents as well as different non-pharmacological methods such as acupuncture are evaluated. This study aims at investigating the effect of M. communis fruit for treatment of COVID-19 disease. Methods We are performing an open-label randomized controlled trial on outpatients clinically suspected to COVID-19 disease in the age range of 18–65 years old with mild to moderate symptoms and without respiratory distress. Patients in both groups ( M. communis and control) receive conventional therapy, but those in M. communis group get M. communis preparation in addition to conventional therapy. Intervention will continue for 5 days and the study outcomes including clinical status as well as mortality rate and adverse effects will be measured up to 14 days. Discussion The protocol describes the design of an ongoing randomized controlled trial to establish the evidence for the usage of water extract of M. communis fruit in clinically suspected COVID-19 disease and identify any safety concerns. Trial registration The trial has been registered at the Iranian Registry of Clinical Trials website under the code IRCT20180923041093N3 on March 28th, 2020 ( https://www.irct.ir/trial/46721 ). The results will be disseminated through manuscript publications and presentations to scientific meetings.

Oligochaetes are the most abundant benthic taxa in aquatic ecosystems that play an important role in food webs. The present study aims to assess the diversity and origin of Eiseniella tetraedra as a non-native species in the Lar National Park of Iran and also its response to current and future climate change. To this, we obtained the specimen from rivers and sequenced the mitochondrial gene Cytochrome Oxidase subunit I (COI) and combined them with 117 sequences from the Jajroud and Karaj rivers in Iran and native regions from GenBank (NCBI). We also run Species Distribution Modelings (SDMs) using an ensemble model approach that was estimated according to two Shared Socio-economic Pathways (SSPs): 126 and 585 of the MRI-ESM2 based on CMIP6. According to the results, all the samples examined in the current study originated from Spanish rivers, and no unique haplotype was found in the Lar National Park. Moreover, the results also show high haplotype diversity that can positively affect the success of this non-native species in different freshwater. Also, the results of SDMs depict that climate change would remarkably affect the distribution of E. tetraedra and it verifies the invasion power of E. tetraedra in Iran's freshwater ecosystems over time.

Aquaporins (AQPs) are small, integral proteins facilitating water transport across plasma cell membranes in response to osmotic gradients. This family has 13 unique members (AQP0-12), which can also transport glycerol, urea, gases, and other salute small molecules. AQPs play a crucial role in the regulation of different cellular processes, including metabolism, migration, immunity, barrier function, and angiogenesis. These proteins are found to aberrantly overexpress in various cancers, including colorectal cancer (CRC). Growing evidence has explored AQPs as a potential diagnostic biomarker and therapeutic target in different cancers. However, there is no comprehensive review compiling the available information on the crucial role of AQPs in the context of colorectal cancer. This review highlights the significance of AQPs as the biomarker and regulator of tumor cells metabolism. In addition, the proliferation, angiogenesis, and metastasis of tumor cells related to AQPs expression as well as function are discussed. Understanding the AQPs prominent role in chemotherapy resistance is of great importance clinically.

The issue of treating Multiple Sclerosis (MS) begins with disease-modifying treatments (DMTs) which may cause lymphopenia, dyspnea, and many other adverse effects. Consequently, further identification and evaluation of alternative treatments are crucial to monitoring their long-term outcomes and hopefully, moving toward personalized approaches that can be translated into clinical treatments. In this article, we focused on the novel therapeutic modalities that alter the interaction between the cellular constituents contributing to MS onset and progression. Furthermore, the studies that have been performed to evaluate and optimize drugs’ efficacy, and particularly, to show their limitations and strengths are also presented. The preclinical trials of novel approaches for multiple sclerosis treatment provide promising prospects to cure the disease with pinpoint precision. Considering the fact that not a single treatment could be effective enough to cover all aspects of MS treatment, additional researches and therapies need to be developed in the future. Since the pathophysiology of MS resembles a jigsaw puzzle, researchers need to put a host of pieces together to create a promising window towards MS treatment. Thus, a combination therapy encompassing all these modules is highly likely to succeed in dealing with the disease.Graphic AbstractThe use of different therapeutic approaches to re-induce self-tolerance in autoreactive cells contributing to MS pathogenesis is presented. A Combination therapy using these tools may help to deal with the clinical disabilities and symptoms of the disease in the future.

Invasion of auto-reactive CD4+ T cells especially Th17 into central nervous system (CNS) is an underlying pathogenic mechanism in multiple sclerosis (MS). CD4+ T cells release exosomes which are enriched in microRNAs, reflective of cell’s physiological or pathological condition. Thus exosomes could be potent agents to provide quantitative and qualitative information about involved cells in MS. We investigated the expression of pathogenic microRNAs in T cells-derived exosomes of MS patients or healthy controls. Conventional T cells (Tconv) derived from relapsing-remitting (RR) MS patients (n=10) and healthy controls (n=10) were purified and cultured for 3 days by soluble anti-CD3/CD28. Exosomes were purified from cultured-T cells supernatants. The expression levels of exosomal miR-146a, miR-29a, miR-155, and miR-326 were quantified by real-time PCR. A statistically significant increased expression of miR-326 in Tconv-derived exosomes was observed in RRMS patients as compared with controls (7.5±1.88vs 2.51±0.9 p=0.03), On the contrary, no differences were found in the expression levels of miR-155, miR-146a, and miR-29a, in Tconv-derived exosomes of  patients as compared with controls (p>0.05).  Our results point to altered expression in exosome-derived microRNAs. MiR-326 was previously shown to play a role in the immunopathogenesis of MS by inducing TH17 differentiation and maturation. Therefore, miR-326 containing exosomes might also be a potential clinical target in course of MS. Moreover, the deregulation of this miRNA in exosomes may serve as a diagnostic and prognostic biomarker.  

Cancer immune-therapy is an interesting avenue of studying the effects of deviating immune system responses to achieve the desired result. Lactobacilli are inhabitants of the GI tract which have shown beneficial health effects on various ailments including malignancies. Their mechanisms of action comprise a very intense area of research. In this study we evaluated the immunomodulatory effects of Lactobacillus acidophilus in in vivo model of breast cancer. Lactobacillus acidophilus ( L.a ) was isolated from traditional home-made yogurt and also from neonatal stool by aerobic overnight culture at 37°C in MRS broth. Delayed Type Hypersensitivity (DTH) assay was performed to find the best immunostimulant dose. 4T1 tumour bearing mice were treated with 2 × 10 8  cfu of isolated L. acidophilus and 20 mg/kg Cyclophosphamide for 15 consecutive days. Tumour volume was measured using a digital vernier calliper. Lymphocyte proliferation was done using MTT proliferation assay. Production of IFNγ, IL-4 and TGF-β from cultured Splenocytes was assessed in the presence of purified tumour antigen. According to results administration of L.a induced a significant decrease in tumour growth pattern (P value = 0.00). Significant alterations in splenocyte production of IFN-γ, IL-4 and TGf-β (P values < 0.05) and also lymphocyte proliferation in L.a treated animals was evident (P value < 0.05). This study indicated that oral administration of L.a is able to alter the cytokine production in tumour bearing mice into a Th1 protective pattern, favourable to anti tumour immunity. Reduced tumour growth rate and increased lymphocyte proliferation are also thus supportive. Further studies are required to elucidate the exact mechanism by which local actions of probiotics affect the systemic immune responses against transformed cells.