Maryam Monsef Shokri

Donor variation is one of the important factor can effect on RBC storage lesion. Consequently, it is possible that the frequency of blood donation can be effective in this regard. Given the few studies that have been conducted, the aim of this study is to compare red blood cell storage damage in two groups of repeat and first-time donors. 10 red blood cell concentrates (RCCs) were collected from first-time and 10 RCCs from regular blood donors. RCCs were stored for up to 42 days at 2-6°C. Research parameters were performed in both groups during RCCs storage. Nitric oxide metabolites and Na⁺ concentration were significantly decreased (p = 0.001) while LDH activity and K⁺ concentration were increased (p = 0.001) in the RCCs from regular compared to the first-time donors. In both group, lipid peroxidation, lactate and hemolysis increased while total antioxidant, pH and glucose concentration showed a decreasing trend during RCCs storage. It seems that the RBC storage lesion in RCCs from regular donors is much more than the first time donors. Therefore, due to the importance of regular blood donors to supply the required blood, further studies need to investigate the causes of this issue.

This study aimed to examine the effect of various live foods on the fatty acids (FAs) and amino acids (AAs) profiles in Persian sturgeon (Acipenser persicus) larvae. One thousand and two hundred larvae were cultured in circular concrete tanks, and four treatments were administered as: (1) Artemia + Daphnia, (2) Artemia, (3) Artemia + Chironomid, and (4) Chironomid. Each treatment was considered as three replicates over an 11‐day period. At the end of the experiment, treatment 1 (Artemia + Daphnia) showed the highest average weight of larvae, and the lowest weight was observed in treatment 4 (Chironomid). Survival rate ranged from 83.84% to 88.86% and no significant difference was observed among the groups (P > 0.05). Among Artemia‐fed larvae, the predominant FAs were docosahexaenoic acid (DHA), oleic acid (ω9), and monounsaturated fatty acids (MUFA), while saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) (ω3 + ω6) were present in a lesser proportion (P < 0.05). In larvae fed with Artemia and Daphnia, the predominant proportions were observed in SFAs, eicosapentaenoic acid (EPA), ω3, DHA + EPA, and the n3/n6 ratio, all registering the highest percentages. Conversely, MUFA, ω6, and the DHA/EPA ratio displayed the lowest percentages (P < 0.05). Moreover, larvae fed with Artemia exhibited higher levels of ω6, PUFA (ω3 + ω6), and DHA/EPA ratio. In contrast, larvae fed with Chironomid showed lower levels of EPA, DHA + EPA, and n3/n6 ratio (P < 0.05). Among larvae fed with Chironomid, solely the DHA/EPA ratio exhibited a higher value compared to larvae fed with Artemia and Daphnia (P < 0.05). The amount of leucine in fish fed Artemia + Daphnia was more than the other treatments (P < 0.05). This study revealed a significant difference in amino acids composition among various live foods (P < 0.05), but no significant difference in AAs was observed in the body of Persian sturgeon larvae (P > 0.05). The results of this study suggest that the Persian sturgeon larvae possess the ability to maintain a balanced state of AAs. It is also evident that the FA profile of different live foods can affect the overall FA levels in the body of Persian sturgeon larvae, ultimately contributing to the enhancement of fish survival rate and growth.

Six different feeding regimes (FR) were tested from 7 to 38 days post hatching (dph). Five thousand four hundred larvae (7 dph, 0.048 g) were randomly stocked in 18 fiberglass tanks contained 100 L fresh water (300 larvae per each tank). In larvae fed with FR-B, includes Artemia nauplii (AN) + Artemia biomass (AB) + microdiet (MD), the body weight (BW) at the end of trail (38 dph) similar the FR-D (AN + CHL + AB + MD), and E (AN + CHL + AB), was at high level. Survival rate was higher in larvae fed FR-A includes AN + chironomid larvae (CHL) + MD, but had a lower BW ( ). Moderate BW and survival rate were detected in larvae fed FR-C (AN + DP + MD). Larvae fed only MD (FR-F), had the lowest survival and the highest BW ( ). Different FR had a significant effect on crude protein (CP), crude fat (CF), ash, and dry weight ( ). The larvae fed FR-C and D had the highest CP ( ). The highest CF and ash in larvae were detected in FR-F and C, respectively ( ). Larvae from FR-A and B had higher levels of n−3 long chain polyunsaturated fatty acids in comparison with others FR ( ). The use of AB and CHL can increased the weight and survival rate of larvae, respectively. At the end of trail, the activity of pepsin, trypsin, lipase and α-amylase enzyme levels were lower in FR-B and F than others FR. Totally, by using a combination of AN + CHL + AB + MD had better results than others and ordered to H. huso larvae feeding. Using MD alone, can cause lesser development of the digestive system and little attractiveness, therefore it can cause starvation, and the empty digestive tract of larvae.

Background and Objective: The platelet-derived growth factor receptor (PDGFR) signaling pathway has a vital function as a regulator of glioma development. PDGFRA alterations have been observed in a variety of cancers and have been important clinical targets for tyrosine kinase inhibitors like Imatinib. The aim of this study was to evaluate the role of ...

Methotrexate (MTX) was shown to cause oxidative stress and liver damage. The objective was to investigate the possible protective effects of Matricaria Chamomilla L. (chamomile) extract with anti-oxidant and anti-inflammatory properties on the methotrexate-induced liver toxicity. Twenty four Wistar rats were divided into four groups. MTX group was injected intraperitoneally on days 7 and 14 with 20 mg/kg methotrexate. Groups CE200 (chamomile extract 200 mg/kg/day) and CE300 (chamomile extract 300 mg/kg/day) received the same dose of methotrexate added with chamomile extract orally for 15 days at 200 mg/kg and 300 mg/kg respectively and the last group was healthy control group. Results of biochemical analyses indicated serum liver biomarkers (aminotransferases), alkaline phosphatase (ALP), albumin, and liver content of anti-oxidant enzymes (catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px)), reduced glutathione (GSH) and total anti-oxidant capacity (TAC) significantly increased (P <0.05-0.001) to normal in the CE treated groups compared to those of the MTX group. Serum bilirubin and hepatic malondialdehyde (MDA) levels significantly increased (P ˂0.001) in MTX group compared to those of the control group and decreased in CE200 and CE300 groups compared to those of the MTX group. Histopathological study showed inflammatory damage, necrotic cells and lipid infiltration in MTX group. In the groups treated with the chamomile extract, a significant improvement was observed in liver tissue in response to increased dose of the extract. In conclusion, chamomile extract administration could have a protective role in methotrexate-induced liver toxicity in rats through improving anti-oxidant defense system.