Antioxidant and cytotoxicity activity of a nanoemulsion from Satureja kermanica (Lamiaceae).

OBJECTIVE: Satureja kermanica is a native species with a relatively wide distribution in Iran, which has been studied less. Due to the low stability of the plants, in this study, the methanolic extract of S. kermanica (MSK) along with a nanoemulsion (NEK) preparation was evaluated in terms of antioxidant and cytotoxic activity. MATERIAL AND METHODS: The aerial parts of S. kermanica were collected and after studying the organoleptic characteristics and quality control parameters, were extracted with methanol. Total phenolic compounds and total flavonoids of the plant were measured. A nanoemulsion preparation was prepared using ultrasonication method from S. kermanica extract. After measuring the particle size of nanoemulsion, both MSK and NEK were evaluated for their antioxidant and cytotoxic activity using DPPH scavenging assay and MTT colorimetric method on breast cancer cell line (MCF-7) respectively. RESULTS: Phytochemical studies exhibited the presence of secondary metabolites including flavonoids, tannins, steroids and carbohydrates in the plant. Based on the histogram of the SBL nanosizer, the average diameter of nanoemulsion was determined as 37.09nm. Both MSK and NEK showed dose-dependent antioxidant and cytotoxic activity. The IC50 value of MSK and NEK for DPPH inhibition was 30.105±2.781 58.14±0.84µg/mL and for toxicity toward MCF-7 cell line was 1251.088 and 201.745±4.554µg/mL respectively. CONCLUSION: MSK and NEK showed antioxidant and cytotoxic activity, but in NEK, the antioxidant and cytotoxic potential of the plant was more prominent, which may be due to the rapid release of the bioactive component from the nanoemulsion.

Evidence for Rosa damascena efficacy in mental disorders in preclinical animal studies and clinical trials: A systematic review.

The aim of this systematic review was to identify animal preclinical studies and randomized controlled trials that looked at the effects of R. damascena in any form on different mental diseases. Up to September 2021, the online databases of PubMed, Scopus, Embase, Web of Science, and Cochrane trials, as well as SID and MagIran, were searched. This study included 10 animal studies. Except for one research, the rest of the studies confirmed the positive effects of the plant in treatment of mental disorders. A total of 38 studies met the criteria for inclusion. Individuals who have encountered various sorts of mental problems, such as anxiety, sleep disturbance, and depressive disorder, were studied. R. damascena essential oil (EO), essence, extract, and dried plant were used in aromatherapy and oral administration. A decrease in sympathetic nervous system activity, induction of neurotransmitters, induction of nerve growth factors by neurogenesis and synaptogenesis mechanisms, a decrease in prolactin and an increase in noradrenaline, estradiol, and progesterone secretion are some of the mechanisms of action. In general, R. damascena is an effective herb for the treatment of mental disorders. However, further research timing and duration of intervention are needed to extrapolate the findings.

The effects of methanolic extract of Glycyrrhiza glabra on the prevention and treatment of bleomycin-induced pulmonary fibrosis in rat: experimental study.

Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by dyspnea and progressive loss of lung function. In this study, the preventive and therapeutic effects of methanolic extract of Glycyrrhiza glabra on pulmonary fibrosis were investigated. Pulmonary fibrosis was induced by administration of bleomycin (BLM) into the left lung of rats. Methyl-prednisolone (M-pred, 4 mg/kg) and methanolic extract of G. glabra (500 mg/kg) were injected intraperitoneally from the 1st to 14th days in the preventive group and from the 14th to 28th days in the therapeutic group once every day. Pulmonary inflammatory and fibrotic indices were evaluated by hematoxylin and eosin (H&E) and Masson's trichrome, respectively. The level of hydroxyproline as an index of pulmonary fibrosis and malondialdehyde (MDA) as an oxidative stress biomarker and catalase were measured by the related ELISA Kits. Pulmonary inflammatory and fibrotic indices in the G. glabra and M-pred groups significantly reduced compared with BLM group. G. glabra decreased the level of hydroxyproline in pulmonary tissue similar to M-pred. MDA reduced in G. glabra and M-pred groups compared with BLM group. The activity of catalase increased in the G. glabra preventive group. According to the results, G. glabra prevented and treated pulmonary fibrosis and inflammation in rats. Therefore, G. glabra may be suggested for the prevention and treatment of pulmonary fibrosis and inflammation.

Pharmacokinetic profile of diosgenin and trigonelline following intravenous and oral administration of fenugreek seed extract and pure compound in rabbit.

Diosgenin (DI) and trigonelline (TRG) are the main bioactive compounds of fenugreek seed. A micro-extraction method using magnetic nanocomposites coupled with ion-pairing reversed phase HPLC (RP-HPLC) method was used to determine the analytes in rabbit plasma. The main PK parameters after oral administration of pure DI and the extract were: Cmax: 0.48, 0.057 µg/ml; tmax: 1, 2 h; and t1/2ß: 6.23, 15.04 h, respectively. Pure TRG and the extract PK parameters were: Cmax: 0.121, 0.081 µg/ml; tmax: 1.30, 1.30 h; and t1/2ß: 20.06, 24.70 h, respectively. Generally, the PK profile of the two compounds was best fitted on the two-compartment model.[Formula: see text].

Protective effect of Zataria multiflora Boiss. and its main compound, rosmarinic acid, against malathion induced oxidative stress and apoptosis in HepG2 cells.

Malathion (MT) is one of the most widely used organophosphorus insecticides which induces toxicity through oxidative stress induction, free radical production and acetylcholinesterase inhibition. In this work, HepG2 cells were used to determine the effect of Zataria multiflora methanolic extract (MEZM) and rosmarinic acid (RA) on MT-induced cytotoxicity, oxidative stress, and apoptosis. Total phenolic content (TPC) and total flavonoid content (TFC) were determined and plant was further standardized based on RA content using HPLC method. The cultured HepG2 cells were pretreated with MEZM (1 µg/ml) and RA (0.1 µg/ml) for 4 h and exposed to MT (100 µM). Cell viability, oxidative stress biomarkers, ROS production, and cell death were examined after 24 h. The amount of RA was determined 73.48 mg/g dried extract. IC50 values of MEZM and MT were 368.56 µg/ml and 99.43 µM, respectively. Pretreatment with MEZM and RA decreased the cytotoxicity, oxidative stress, and cell percentage in the late apoptosis and necrosis stages induced by MT. There was no significant difference between MEZM and RA effects. The present study showed the significant protective effects of MEZM against toxicity induced by MT in hepatocytes which can be attributed to the plant antioxidant constituents including RA.

Design, synthesis, biological evaluation, and molecular dynamics of novel cholinesterase inhibitors as anti-Alzheimer's agents.

A series of novel chroman-4-one derivatives were designed and synthesized successfully with good to excellent yield (3a-l). In addition, the obtained products were evaluated for their cholinesterase (ChE) inhibitory activities. The results show that among the various synthesized compounds, analogs bearing the piperidinyl ethoxy side chain with 4-hydroxybenzylidene on the 3-positions of chroman-4-one (3l) showed the most potent activity with respect to acetylcholinesterase (anti-AChE activity; IC50 = 1.18 µM). In addition, the structure-activity relationship was studied and the results revealed that the electron-donating groups on the aryl ring of the 3-benzylidene fragment (3k, 3l) resulted in the designed compounds to be more potent ChE inhibitors in comparison with those having electron-withdrawing groups (3h). In this category, the strongest ChE inhibition was found for the compound containing piperidine as cyclic amine, and a hydroxyl group (for AChE, compound 3l) and fluoro group (for butyrylcholinesterase (BuChE, compound 3i) on the para-position of the aryl ring of the benzylidene group. The molecular docking and dynamics studies of the most potent compounds (3i and 3l against BuChE and AChE, respectively) demonstrated remarkable interactions with the binding pockets of the ChE enzymes and confirmed the results obtained through in vitro experiments.

Leishmanicidal, cytotoxic and apoptotic effects of Gossypium hirsutum bulb extract and its separated fractions on Leishmania major.

BACKGROUND & OBJECTIVES: Leishmaniasis is a major global health problem with no safe and effective therapeutic drugs. This study evaluated the cytotoxic and apoptotic effects of crude extract and fractions of Gossypium hirsutum bulb on Leishmania major stages using advanced experimental models. METHODS: Bulbs of G. hirsutum were collected from the Kerman province of Iran. The bulb was extracted using Soxhlet apparatus and different fractions were obtained by column chromatography (CC). Different concentrations of the extract and the fractions were evaluated against L. major and compared with Glucantime®. The cytotoxicity and apoptotic values were analysed by flow cytometry. The fractions obtained in CC were monitored by thin layer chromatography, and fractions with similar chromatographic patterns were mixed. RESULTS: The extract and two fractions, F4 and F5 inhibited the proliferation of L. major promastigotes and amastigotes in a dose-dependent manner at 72 h post-treatment. No significant cytotoxic effects were observed for extract and fractions, as the selectivity index was over 1000, far beyond >10. The mean apoptotic values for L. major were superior to those of Glucantime®. INTERPRETATION & CONCLUSION: Both the crude extract and fractions (F4 and F5) had significant antileishmanial effects on L. major stages, and were were superior relative to Glucantime®. No cytotoxic effects were associated with the extract or fractions and they showed excellent apoptotic index, a possible mechanism behind inducing parasite death. Further investigations are essential to study the effect of G. hirsutum bulb fractions in animal model and clinical settings for planning strategies for the prevention and control of leishmaniasis.

Protective effect of standardized extract of Myrtus communis L. (myrtle) on experimentally bleomycin-induced pulmonary fibrosis: biochemical and histopathological study.

CONTEXT: Myrtle (Myrtus communis L) has been used widely in traditional medicine for different respiratory disorders. Idiopathic pulmonary fibrosis (IPF) is an inflammatory disease characterized by progressive loss of lung function with poor prognosis. The pathogenesis of disease has not been completely elucidated, but probably persistent epithelial damages are involved. OBJECTIVE: Evaluation of biochemical and histopathological effect of preventive and therapeutic doses of myrtle against bleomycin (BLM)-induced pulmonary fibrosis (PF) in animal model. MATERIALS AND METHODS: Methanolic extract of M. communis was prepared by maceration method. Total flavonoid content was determined and experimentally PF was induced in rat with intratracheal instillation of a single dose of BLM (5 mg/kg) only on day 0. Myrtle antifibrotic effect was evaluated as preventive (50 mg/kg/day, intraperitoneal (i.p.) injection, from day 0-13) and therapeutic agent (50 mg/kg, i.p., from day 14-27) in comparison with methyl prednisolone (M-pred) (4 mg/kg, i.p. for 14 days). RESULTS: Parenchymal inflammation and fibrotic changes significantly were reduced by myrtle and M-pred. Significant decrease in hydroxyproline content and lipid peroxidation were observed in animals receiving myrtle extract while catalase activity was increased by myrtle. Improvement in inflammation and fibrosis was observed in myrtle group especially in the early phase of fibrosis (preventive regime). DISCUSSION AND CONCLUSION: Myrtle extract effectively inhibited the inflammation and fibrosis of lung parenchyma in both preventive and therapeutic methods. This effect might be due to the reduction of tissue inflammation and inhibition of oxidative stress. More studies are being carried out to find main mechanisms and separation of active compounds.

Chemical Composition, Anticonvulsant Activity, and Toxicity of Essential Oil and Methanolic Extract of Elettaria cardamomum.

Elettaria cardamomum is an aromatic spice (cardamom) native to the humid Asian areas, which contains some compounds with a potential anticonvulsant activity. Various pharmacological properties such as anti-inflammatory, analgesic, antioxidant, and antimicrobial effects have been related to this plant. This research was conducted to examine the probable protective impact of the essential oil and methanolic extract of E. cardamomum against chemically (pentylentetrazole)- and electrically (maximal electroshock)-induced seizures in mice. In addition, neurotoxicity, acute lethality, and phytochemistry of the essential oil and methanolic extract were estimated. The TLC method showed the presence of kaempferol, rutin, and quercetin in the extract, and the concentration of quercetin in the extract was 0.5 µg/mL. The major compounds in the essential oil were 1,8-cineole (45.6 %), α-terpinyl acetate (33.7 %), sabinene (3.8 %), 4-terpinen-4-ol (2.4 %), and myrcene (2.2 %), respectively. The extract and essential oil showed significant neurotoxicity in the rotarod test at the doses of 1.5 g/kg and 0.75 mL/kg, respectively. No mortalities were observed up to the doses of 2 g/kg and 0.75 mL/kg for the extract and essential oil. The essential oil was effective in both the pentylentetrazole and maximal electroshock models; however, the extract was only effective in the pentylentetrazole model. The study suggested that E. cardamomum methanolic extract had no significant lethality in mice. Both the essential oil and methanolic extract showed movement toxicity. Anticonvulsant effects of E. cardamomum were negligible against the seizures induced by pentylentetrazole and maximal electroshock.

Antidiabetic, antioxidant, and antilipid peroxidative activities of Dracocephalum polychaetum shoot extract in streptozotocin-induced diabetic rats: In vivo and in vitro studies.

CONTEXT: Dracocephalum polychaetum Bornm. (Lamiaceae) is used in folk medicine and contains antioxidant agents. OBJECTIVES: The objective of this study is to investigate the antidiabetic, antioxidant, and antilipid peroxidative properties of methanol extract of D. polychaetum aerial parts. MATERIALS AND METHODS: The effect of extract (200, 300, and 400 mg/kg, b.w.) on oral glucose tolerance test (OGTT) was investigated. Also, extract (300 mg/kg) administered orally in diabetic rats for 14 d then, serum levels of some biochemical factors were evaluated. Pancreas samples were used for the determination of malondealdehyde (MDA) level, glutathione (GSH) content, superoxide dismutase, and catalase enzyme activities. Red blood cells (RBCs) and plasma were used for MDA estimation. Pancreatic α-amylase inhibition, DPPH (1,1-diphenyl-2-picrylhydrazyl), and FRAP (ferric reducing antioxidant power) assays were done. The total flavonoid content of the extract was determined by spectrophotometry. RESULTS: Extract (300 mg/kg) decreased serum glucose level (27.1%) significantly at 120 min in OGTT. Serum levels of creatinine, triglycerides, cholesterol, alanine amino transferase and MDA levels in plasma, RBCs, and pancreas significantly decreased in treated (300 mg/kg) diabetic rats, while pancreatic GSH content, superoxide dismutase, and catalase enzymatic activities increased (p < 0.05). The IC50 values for the extract and butyl hydroxyanisole were 5.6 and 1.15 mg/mL in DPPH and 0.155 and 0.062 mg/mL in the FRAP methods, respectively. The extract had no inhibitory effect on α-amylase activity. The total amount of flavonoids of the extract was estimated to be 1.8% (g/g) on the basis of quercetin content. CONCLUSION: Dracocephalum polychaetum shoot extract has antioxidant, antihyperlipidemic, and antilipid peroxidative properties.

Chemical composition along with anti-leishmanial and cytotoxic activity of Zataria multiflora.

CONTEXT: Natural products and their compounds are some of the most interesting sources of new drugs. Reviews have reported various pharmacological properties such as antimicrobial effects of Zataria multiflora Boiss (Lamiaceae). OBJECTIVE: The present study investigates the chemical composition of Z. multiflora essential oil and evaluates its cytotoxic effects and anti-leishmanial activities against Leishmania tropica in an in vitro model. MATERIALS AND METHODS: The components of Z. multiflora oil were identified by gas chromatography/mass spectroscopy (GC/MS) analysis. Anti-leishmanial effects of the essential oil (0-100 µL/mL) and methanol extract of Z. multiflora (0-100 µg/mL) on promastigote forms as well as their cytotoxic activities against J774 cells were evaluated using MTT assay for 72 h. The leishmanicidal activity against amastigote forms of L. tropica was evaluated at the concentrations of 0-50 µg/mL in a macrophage model for 48 h. RESULTS: The chemical analyses demonstrated that the main components of essential oil were thymol (41.81%), carvacrol (28.85%), and p-cymene (8.36%). Regarding leishmanicidal activity, the IC50 values for the essential oil and methanol extract were 3.2 µL/mL and 9.8 µg/mL against promastigote forms and 8.3 µL/mL and 34.6 µg/mL against amastigote forms, respectively. Essential oil (CC50 89.3 µL/mL) indicated a higher cytotoxic effect than the methanol extract (CC50 591.6 µg/mL) of Z. multiflora. CONCLUSION: The present study revealed the chemical composition of Z. multiflora that might be a natural source of new anti-leishmanial agents in terms of use against cutaneous leishmaniasis.

Antileishmanial and cytotoxic effects of essential oil and methanolic extract of Myrtus communis L.

Plants used for traditional medicine contain a wide range of substances that can be used to treat various diseases such as infectious diseases. The present study was designed to evaluate the antileishmanial effects of the essential oil and methanolic extract of Myrtus communis against Leishmania tropica on an in vitro model. Antileishmanial effects of essential oil and methanolic extract of M. communis on promastigote forms and their cytotoxic activities against J774 cells were evaluated using MTT assay for 72 hr. In addition, their leishmanicidal activity against amastigote forms was determined in a macrophage model, for 72 hr. Findings showed that the main components of essential oil were α-pinene (24.7%), 1,8-cineole (19.6%), and linalool (12.6%). Findings demonstrated that M. communis, particularly its essential oil, significantly (P<0.05) inhibited the growth rate of promastigote and amastigote forms of L. tropica based on a dose-dependent response. The IC50 values for essential oil and methanolic extract was 8.4 and 28.9 µg/ml against promastigotes, respectively. These values were 11.6 and 40.8 µg/ml against amastigote forms, respectively. Glucantime as control drug also revealed IC50 values of 88.3 and 44.6 µg/ml for promastigotes and amastigotes of L. tropica, respectively. The in vitro assay demonstrated no significant cytotoxicity in J774 cells. However, essential oil indicated a more cytotoxic effect as compared with the methanolic extract of M. communis. The findings of the present study demonstrated that M. communis might be a natural source for production of a new leishmanicidal agent.

Leishmanicidal and cytotoxic activities of Nigella sativa and its active principle, thymoquinone.

CONTEXT: Leishmaniasis is a complex disease with a broad spectrum of clinical presentations. OBJECTIVE: We evaluated the anti-leishmanial effects of Nigella sativa L. (Ranunculaceae) against Leishmania tropica and Leishmania infantum with an in vitro model. MATERIALS AND METHODS: Antileishmanial effects of essential oil and methanolic extract of N. sativa (0-200 µg/mL) and thymoquinone (0-25 µg/mL) on promastigotes of both species and their cytotoxicity activities against murine macrophages were evaluated using the MTT assay at 24, 48, and 72 h. Moreover, their leishmanicidal effects against amastigotes were investigated in a macrophage model, for 48 and 72 h. RESULTS: The findings showed that essential oil (L. tropica IC50 9.3 µg/mL and L. infantum IC50 11.7 µg/mL) and methanolic extract (L. tropica IC50 14.8 µg/mL and L. infantum IC50 15.7 µg/mL) of N. sativa, particularly thymoquinone (L. tropica IC50 1.16 µg/mL and L. infantum IC50 1.47 µg/mL), had potent antileishmanial activity on promastigotes of both species after 72 h. In addition, essential oil (L. tropica IC50 21.4 µg/mL and L. infantum IC50 26.3 µg/mL), methanolic extract (L. tropica IC50 30.8 µg/mL and L. infantum IC50 34.6 µg/mL), and thymoquinone (L. tropica IC50 2.1 µg/mL and L. infantum IC50 2.6 µg/mL) mediated a significant decrease in the growth rate of amastigote forms of both species. Thymoquinone (CC50 38.8 µg/mL) exhibited higher cytotoxic effects against murine macrophages than the other extracts. CONCLUSION: N. sativa, especially its active principle, thymoquinone, showed a potent leishmanicidal activity against L. tropica and L.infantum with an in vitro model.

Serum selenium level in patients with gastric non-cardia cancer and functional dyspepsia.

BACKGROUND: Gastric cancer (GC) is the most common gastrointestinal cancer in Iran. Helicobacter pylori (H. pylori) accounts as one of the main risk factors for gastric non-cardia cancer (GNCC). It is suggested that high serum selenium level may have a protective role in GNCC. In this cross-sectional study, we determined the serum Se level and the status of H. pylori infection in two populations with GC and functional dyspepsia (FD). METHODS: The enrolled patients were 85 (27 women, 58 men) with recent pathologically proven GNCC (adenocarcinoma) and 85 (34 women, 51 men) FD patients. Serum Se was measured by atomic absorption spectrophotometry. H. pylori IgG antibody was detected by quantitative enzyme immunoassay. RESULTS: The mean age in the GNCC and FD patients were 62.85±14.6 and 58.9±14.7 years, respectively (P=0.08). The serum selenium levels were 111.6±27.7 and 129.9±32.1 µg/L (mean±SD) in GNCC and FD patients, respectively (P<0.001). The frequency of H. pylori infection was 49.4% (n=42) and 68.2% (n=58) in GNCC and FD patients (P=0.013). The crude and adjusted odds ratio (OR) between GNCC and the linear effect of serum selenium level were 0.98 and 0.982, respectively (P=0.002). This means that each unit increase in serum selenium level decreases the odds of cancer by 2%. CONCLUSION: Serum selenium level was significantly lower in GNCC cases. It suggests that lower serum selenium might have some association with the risk of GNCC. H. pylori infection does not play a significant impact on this association.

Evaluation of antileishmanial activity and cytotoxicity of the extracts of Berberis vulgaris and Nigella sativa against Leishmania tropica.

BACKGROUND & OBJECTIVES: Leishmaniasis is a major public health problem, and the alarming spread of parasite resistance underlines the importance of discovering new therapeutic products. The present study aims to investigate the in vitro antileishmanial activity and cytotoxicity of the ethanolic extract of Berberis vulgaris fruits and chloroform extract of Nigella sativa seeds against Leishmania tropica. METHODS: In this study, antileishmanial activity of B. vulgaris and N. sativa extracts on promastigote and amastigote stages of L. tropica in comparison to meglumine antimoniate (MA) was evaluated, using MTT assay and macrophage model, respectively. MTT test was also used to assess the cytotoxicity of extracts on murine macrophages. The significance of differences was determined by analysis of variances (ANOVA) and student's t-test using SPSS software. RESULTS: The results showed that ethanolic extract of B. vulgaris (IC50 4.83 µg/ml) and chloroform extract of N. sativa (IC50 7.83 µg/ml) significantly reduced the viability of promastigotes of L. tropica in comparison to MA (IC50 11.26 µg/ml). Furthermore, extracts of B. vulgaris (IC50 24.03 µg/ml) and N. sativa (IC50 30.21 µg/ml) significantly decreased the growth rate of amastigotes in each macrophage as compared with positive control (p <0.05). Our findings also revealed that extracts of B. vulgaris and N. sativa had no significant cytotoxicity against murine macrophages. CONCLUSION: The B. vulgaris and N. sativa extracts exhibited an effective leishmanicidal activity against L. tropica on in vitro model. Further, works are required to evaluate the exact effect of these extracts on Leishmania species using a clinical setting.

Synthesis and characterization of nano-biopolymer carriers loaded with clove (Syzygium aromaticum L.) extract as an anticancer agent: an in vitro study.

The objective of this work was to design a new drug nanoparticle (NP) composed of chitosan/ß-cyclodextrin/sodium tripolyphosphate/alginate (CS/ßCD/TPP/AL) loaded with a clove extract (CE) for potential anticancer effects. The extract was prepared by two extraction methods: hydroalcoholic maceration (MAC) with 80% MeOH and supercritical fluid (SCF). The MACCE and SCFCE CE NPs had particle sizes of 71 nm and 20 nm, respectively with irregular spherical shapes. The nanocarriers achieved entrapment efficiencies of over 90%. MACCE-NPs and SCFCE-NPs released 18.35% and 10.12% of the extract after 6 h, respectively. Cell viability decreased to 54%, 7%, and 12% in HeLa, U87, and KB cell lines, respectively, after a 48-hour treatment with SCFCE-NPs and 75%, 8%, and 17% after treatment with MACCE-NPs, significantly reduced compared to the control. It is concluded that NPs containing CE exhibit a higher degree of toxicity due to better penetration into cells.

Medicinal plants used in multiple sclerosis patients, prevalence and associated factors: a descriptive cross-sectional study.

INTRODUCTION: Multiple sclerosis (MS) is a chronic and debilitating disease that not only leads to disability and associated condition but also impacts one's ability to maintain a professional life. People's acceptance and utilization of medicinal plants (MPs) play an important role in managing their treatment process. As a result, this study aims to investigate the use of medicinal herbs among patients with MS. METHODS: A descriptive cross-sectional study was conducted on 150 MS patients who visited a private clinic and the MS Association in Kerman, Iran in 2021. A questionnaire comprising questions about sociodemographic information, disease variables, and aspects of MPs usage was utilized for data collection. Statistical analysis was performed using SPSS version 20 (SPSS Inc., Chicago, IL). The Chi-square test was employed to identify any association between demographic characteristics and MPs usage. To determine the prevalence of plant use in a specific area and the consensus among informants, the use value (UV) and Informant consensus factor (Fic) were calculated. RESULTS: The study revealed a high prevalence of MPs usage among MS patients. Chamomile (66.6%) and golegavzaban (62.0%) were the most commonly used plants with the highest UV indices (0.88 and 0.82 respectively), while St. John's wort and licorice were rarely used (0.67% and 4% respectively). Participants cited pursuing a healthier lifestyle as the primary reason for using MPs (24%). St. John's wort, lavender, and chamomile were the most satisfying plants (100%, 100%, and 53.0% respectively). Chamomile had the highest Fic too. Most patients were motivated to get MPs from their relatives. CONCLUSIONS: Given the widespread use of MPs among MS patients, neurologists should enhance their knowledge in this area to guide patients away from seeking advice from non-professionals. Providing standardized formulations can help prevent potential interactions between MPs and mainstream drugs, thereby improving patients safety and outcomes.

The healing effect of nano emulsified Plantago major L extract on oral wounds in a wistar rat model.

INTRODUCTION: Oral lesions are a common clinical symptom arising from various etiologies and disrupt the patient's quality of life. However, no definite treatment is not yet possible, due to the constantly changing environment of the mouth. In recent years, herbal treatments have gained popularity among patients and physicians due to their availability, safety, affordability, and antimicrobial properties. This research aims to investigate the therapeutic effects of a nano-emulsion of Plantago major standardized extract (PMSE) on oral ulcers in a Wistar rat model using histomorphometry and stereological parameters. MATERIALS AND METHODS: The study involved 72 Wistar rats divided randomly into 24 groups of 3 each: groups A1 to A4 received one dose to 4 doses of 5% PMSE nano emulsion, groups B1 to B4 received one dose to 4 doses of 10% PMSE nano emulsion, and groups C1 to C4 received one dose to 4 doses of 20% PMSE nano emulsion, groups D1 to D4 received one dose to 4 doses of nano-emulsion without PMSE, groups E1 to E4 received one dose to 4 doses of PMSE, and group F served as the control group. An incision measuring 2 mm in diameter was made in the animals' hard palate using a biopsy punch. A swab containing the necessary material was used to administer the medication orally to the wound. Histological samples were collected on days 2, 4, 6, and 8 and sent to the pathology laboratory for examination. Data analysis was performed using SPSS 26 and setting statistical significance at p < 0.05. RESULTS: Group A showed a high rate of complete and normal re-epithelialization of the wound at 66.7%, compared to the other groups. Group D had a re-epithelialization rate of 50%, while groups C, E, and F had rates of 7.41% and group B had 7.16%. In terms of inflammation reduction, 23.88% of group A had no inflammation, a higher percentage compared to the other groups. Group B and D had no inflammation in 3.33% of cases, lower than the other groups. The study evaluated frequency of re-epithelialization and inflammation levels in different groups on days 2, 4, 6, and 8 after four doses of the drug with no significant differences found among the groups. CONCLUSION: None of the nano emulsions or PMSE enhanced the healing rate of oral ulcers. However, a 5% PMSE nano emulsion displayed an increase in lesion re-epithelialization.

Antioxidant effect and study of bioactive components of Valeriana sisymbriifolia and Nardostachys jatamansii in comparison to Valeriana officinalis.

The roots of Nardostachys jatamansi have been used as a substitute for valerian in Iranian traditions. Moreover, six species from Valeriana genus such as V. sisymbriifolia grow in Iran which has not been studied yet. We aimed to study of antioxidant effect of Valeriana officinalis, Nardostachys jatamansi and Valeriana sisymbriifolia and comparing their content of valerenic acid and valepotriate. Antioxidant effect was evaluated using diphenylpicrylhydrazyl (DPPH) inhibition and beta carotene-bleaching assays. Identification of valepotriates was achieved using chemical and TLC method. Qualitative and quantitative analysis of valerenic acid was performed using TLC and spectrophotometry methods. Among the tested samples, V. Officinalis showed the highest DPPH inhibition effect with IC(50) value of 38mg/mL. All of the tested plants potentially inhibited beta-carotene oxidation. The calibration curve of authentic valerenic acid was linear in the range of 2-51 mg L(-1). The most and least amount of valepotraites was detectable in V. officinalis and V. sisymbriifolia respectively. Total valerenic acid in different plant species ranged from 0.02% in V. sisymbriifolia to 0.07% (w/w) in V. Officinalis. Our results indicated that all three tested plants contain different amount of valepotriates and valerenic acid. The highest percentage of valepotriates and valerenic acid was detectable in V. officinalis. Overall can conclude that N. jatamansii and V. sisymbriifolia would be a good candidate for substitutation of V. officinalis with noticeable antioxidant effect.

Mannas, unique products of a dynamic insect-plant interaction: Biodiversity, conservation and ethnopharmacological considerations.

Biodiversity keeping increases the flexibility, interaction and adaptation of different ecosystems with the environment which benefits all organisms, including humans. This diversity can be maintained through different paths including co-evolution between insects and plants. One of these unique interactions leads to the production of "Mannas" in Iran, which have biological and ethno-medicinal importance. Considering the crises of biodiversity and the rapid extinction of species, in this research, we aimed to review the latest scientific findings about mannas and their biological, medicinal and bio perspective considerations. Until August 2023, all English publications in Web of Science, Science Direct, PubMed, Google Scholar and Scopus, as well as Persian databases such as Magiran, Iranmedex, Medlib, SID were surveyed using various search terms such as manna, angabin, sweet secretions and plant-insect interference. Articles that studied manna production from plants or provided a comprehensive description of host plants and manna producing insects were included in the study. In total, out of more than 180 reviewed articles, 113 articles met the inclusion criteria and 7 known mannas (Bidkhesht, Gaz-e-Alafi, Gaz-e-Khansar, Gaz-e-Shahdad, Shirkhesht, Shekartigal, and Taranjebin) have been explained here. This review deals with different aspects of special interactions between insects and plants that lead to the production of manna and presents different uses of manna from medicinal, ethnobotanical, health, conservation and bio perspective points of view. In addition, the changes in the population of manna-breeding insects and host plants are taken into consideration and influencing factors including loss of their growth conditions and climatic conditions, animal breeding in the region, inappropriate exploitation methods and host preference phenomenon which increase the risk of destruction of these natural products have been given. These mannas cannot be produced in any way, and maintaining their production conditions requires environmental care and providing necessary training.