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2024
El-Shater, S. N., K. Abo-EL-Sooud, A. tolba, M. Gamal, M. A. Awad, M. Ibrahim, M. Tayeh, and G. A. Swielim, "Effect of in-ovo inoculation of betaine on hatchability, serum antioxidant levels, muscle gene expression and intestinal development of broiler chicks.", Journal of animal physiology and animal nutrition, 2024. Abstract

This study investigated the effects of in-ovo inoculation of betaine on hatchability, hatching weight, and intestinal development, as well as serum and expression levels of some antioxidants in the posthatched chicks. A total of 350 fertile eggs of Hubbard efficiency plus breeder's flock were incubated at normal incubation temperature (37.5°C) and randomly assembled into 3 groups with 4 replicates, and 25 eggs per each. The experimental groups were allocated as noninjected control group (CN), diluent-injected group (CP, 0.1 mL saline), and betaine-injected group (B, 2.5 mg in 0.1 mL saline). The injections were performed in the air cells of the eggs on the 12th day of the embryonic phase. Hatchability percentage, hatching weight, serum-reduced glutathione (GSH), and superoxide dismutase (SOD) were estimated in 7-day-old chicks. Moreover, expression levels of the nuclear factor erythroid 2-related factor 2 (Nrf2) and SOD were determined in the breast skeletal muscles of chicks. Jejunum histo-morphometric analysis was assessed with computerised morphometric measurements. The results revealed that the hatchability percentage was not influenced by in-ovo injection of betaine or vehicle while betaine significantly increased the hatchling's weight of chicks. Moreover, there were a significant increase in SOD and Nrf2 mRNA expression levels. In-ovo injection of betaine significantly induced positive effects on intestinal morphometry by ameliorating the jejunal villus length, the ratio of villus height to villus width, and absorptive surface area.

Behairy, A., M. M. M. Hashem, K. Abo-EL-Sooud, A. M. Soliman, S. M. Mouneir, A. E. El-Metwally, S. H. Ismail, B. A. Hassan, and Y. M. Abd-Elhakim, "Influence of titanium dioxide nanoparticles and/or cadmium chloride oral exposure on testicular morphology, oxidative stress, and apoptosis in rats: Ameliorative role of co-enzyme Q10.", Heliyon, vol. 10, issue 1, pp. e24049, 2024. Abstractheliyon.pdf

BACKGROUND AND OBJECTIVES: Little is known about the implications of titanium dioxide nanoparticles (TiONPs) and cadmium chloride (Cd) co-exposure on the male reproductive system in mammals. As a result, this study researched the effects of oral TiONPs and/or Cd exposure on male reproduction and testicular functions. Additionally, a mitigation trial with co-enzyme Q10 (CoQ10) has also been conducted.

METHODS: In a 60-day experiment, seven experimental groups, each containing 10 male Sprague Dawley rats, were orally given distilled water (control), corn oil (vehicle control), CoQ10 (10 mg/kg b.wt), TiONPs (50 mg/kg b.wt), Cd (5 mg/kg b.wt), TiONPs + Cd, and TiONPs + Cd + CoQ10. Then, sperm quality, male sex hormones, oxidative stress indications, Ti and Cd testicular residues, testes and accessory gland architecture, and apoptotic and inflammatory markers in rat testes were assessed.

RESULTS: TiONPs and/or Cd exposure negatively impacted body weight, weight gain, testicular weights, semen quality, serum reproductive hormones, oxidative stress parameters, and Caspase-3 and tumor necrosis factor (TNF-α) immunoreactions. Histopathological changes were recorded in testicular, seminal vesicle, and prostatic tissues. Yet, co-administration of CoQ10 with TiONPs and Cd substantially mitigated these adverse consequences. The most notable aspect is that it effectively lowered testicular tissue Ti and Cd levels. It also improved oxidant status, hormonal profile, and sperm picture. CoQ10 minimized the testicular damage implied by histological examination. Furthermore, CoQ10 significantly diminished TiONPs and Cd-induced Caspase-3 and TNF-α immunoexpression in testicular tissue.

CONCLUSION: As a result, CoQ10 could be utilized as a safe remedy to protect male reproductive physiology from TiONPs and Cd damage.

2023
Abo-EL-Sooud, K., Y. M. Abd-Elhakim, M. M. M. Hashem, A. E. El-Metwally, B. A. Hassan, and H. H. M. El-Nour, "Ameliorative effects of quercetin against hepatic toxicity of oral sub-chronic co-exposure to aluminum oxide nanoparticles and lead-acetate in male rats.", Naunyn-Schmiedeberg's archives of pharmacology, vol. 396, issue 4, pp. 737-747, 2023. Abstractnaunyn-schmiedebergs_archives_of_pharmacology.pdf

The present study was designed to evaluate the probable ameliorative role of quercetin (QCN) against oxidative hepatotoxicity induced by aluminum oxide nanoparticles (AlONPs) with a diameter < 30 nm and lead acetate (Pb) co-exposure in adult male Sprague-Dawley rats. Rats were weighed and allocated to seven groups (n = 10 each) and were treated orally via orogastric gavage for 60 successive days: rats of the 1st group were kept as control given distilled water (1 ml/kg), rats of the 2nd group received 2 ml/kg BW/day corn oil; rats of the 3rd group were administered 20 mg/kg BW QCN/day; rats of the 4th group received 100 mg/kg BW AlONPs; rats of the 5th group received 50 mg/kg BW Pb; rats of the 6th group co-received AlONPs and Pb at the same previous doses; and rats of the 7th group were co-administered AlONPs, Pb, and QCN at the same previous doses. At the end of the experiment, serum levels of alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), total, direct, indirect bilirubin, triglycerides, total cholesterol, HDL, VLDL, and LDL were estimated. The hepatic oxidative stress biomarkers as superoxide dismutase (SOD), malondialdehyde (MDA), and glutathione peroxidase (GPx), were also evaluated. Finally, the histopathological and histomorphometric evaluations and the residues of Al and Pb in hepatic tissues were assessed. AlONPs and/or Pb exposure significantly elevated lipid peroxidation levels and considerably altered the hepatic biochemical parameters; nevertheless, QCN significantly reduced hepatic enzymes compared to toxicant exposed groups. Additionally, QCN significantly improved AlONPs-afforded liver tissue damage, as established in microscopic findings on the liver in the group treated with AlONPs + Pb. Conclusively, QCN could be a candidate natural agent to safeguard the liver versus the co-harmful impacts of AlONPs and Pb toxicity.

Bahr, M. M., M. Samer, K. Abo-EL-Sooud, S. M. Kamel, M. A. Fouly, A. N. Abdallah, A. A. Shamaa, and O. S. el-Tookhy, "Effect of Topical application of Lyophilized Xenogenous Mesenchymal Stem Cell-Derived Extracellular Vesicles on Central and Peripheral Corneal Ulcers Healing in Rabbits", Adv. Anim. Vet. Sci., vol. 11, issue 1, pp. 132-140, 2023.
Abd-Elhakim, Y. M., M. M. M. Hashem, K. Abo-EL-Sooud, M. R. Mousa, A. M. Soliman, S. M. Mouneir, S. H. Ismail, B. A. Hassan, and H. H. M. El-Nour, "Interactive effects of cadmium and titanium dioxide nanoparticles on hepatic tissue in rats: Ameliorative role of coenzyme 10 via modulation of the NF-κB and TNFα pathway.", Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, vol. 182, pp. 114191, 2023. Abstractfood_and_chemical_toxicology.pdf

This study investigated the effect of oral dosing of titanium dioxide nanoparticles (TNPs) and cadmium (Cd) on rat liver and the potential protective role of coenzyme Q10 (CQ10) against TNPs and Cd-induced hepatic injury. Seventy male Sprague Dawley rats were divided into seven groups and orally given distilled water, corn oil, CQ10 (10 mg/kg b.wt), TNPs (50 mg/kg b.wt), Cd (5 mg/kg b.wt), TNPs + Cd, or TNPs + Cd+CQ10 by gastric gavage for 60 successive days. The results showed that individual or mutual exposure to TNPs and Cd significantly increased the serum levels of various hepatic enzymes and lipids, depleted the hepatic content of antioxidant enzymes, and increased malondialdehyde. Moreover, the hepatic titanium and Cd content were increased considerably in TNPs and/or Cd-exposed rats. Furthermore, marked histopathological perturbations with increased immunoexpression of tumor necrosis factor-alpha and nuclear factor kappa B were evident in TNPs and/or Cd-exposed rats. However, CQ10 significantly counteracted the damaging effect of combined exposure of TNPs and Cd on the liver. The study concluded that TNPs and Cd exposure harm hepatic function and its architecture, particularly at their mutual exposure, but CQ10 could be a candidate protective agent against TNPs and Cd hepatotoxic impacts.

Abo-EL-Sooud, K., Y. M. Abd-Elhakim, M. M. M. Hashem, A. E. El-Metwally, B. A. Hassan, and H. H. M. El-Nour, "Restorative effects of gallic acid against sub-chronic hepatic toxicity of co-exposure to zinc oxide nanoparticles and arsenic trioxide in male rats.", Heliyon, vol. 9, issue 6, pp. e17326, 2023. Abstractheliyon.pdf

BACKGROUND AND OBJECTIVES: This study aimed to assess the effect of zinc oxide nanoparticles (ZNPs) and/or arsenic trioxide (ATO) exposure on the liver of adult male Sprague Dawley rats. Moreover, the probable ameliorative impact of gallic acid (GA) against ZNPs and ATO-induced hepatotoxicity and the possible underlying mechanisms were evaluated.

METHODS: Sixty male Sprague Dawley rats were distributed into six groups. The 1 and 2 groups were orally given distilled water (1 ml/kg) and 20 mg GA/kg b. wt, respectively. The 3 and 4 groups were orally given 100 mg ZNPs/kg b. wt and 8 mg ATO/kg b. wt, respectively. The 5 group was co-administered ZNPs and ATO at the doses mentioned above. The last one was co-administered ZNPs, ATO, and GA at the earlier described doses. All tested compounds were orally given once a day for 60 successive days. Then, serum levels of alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), total, direct, indirect bilirubin, triglycerides, total cholesterol, HDL, VLDL, and LDL were estimated. The hepatic content of malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione peroxidase (GPx) was evaluated. Moreover, Bcl-2 and Bax's reactive proteins were immunohistochemically detected, and Zn and As residual patterns in hepatic tissues were assessed.

RESULTS: ZNPs, ATO, and ZNPs+ATO-exposed rats showed significantly ( < 0.001) elevated serum AST (219%, 233%, and 333%), ALT (300%, 400%, and 475%), ALP (169%, 205%, and 294%), and total bilirubin (42%, 68%, and 109%) compared to the control ones. On the other hand, a significantly ( < 0.001) declined SOD (58%, 49%, and 43%) and GPx (70%, 63%, and 56%) but increased MDA (133%, 150%, and 224%) was recorded in the hepatic tissues of ZNPs, ATO, and ZNPs+ATO exposed rats, respectively, relative to the control rats. Moreover, the hepatic tissues of the ZNPs, ATO, and ZNPs+ATO exposed rats showed a significant ( < 0.001) decrease in Bcl-2 (28%, 33%, and 23%) but elevation in Bax (217%, 267%, and 236%) immunoreactivities compared to the control rats. These findings were consistent with the microscopic alterations in the hepatic architecture and accumulation of Zn and As. Furthermore, a notable hyperlipidemic condition was recorded following ZNPs and/or ATO exposure. On the contrary, GA notably reduced hepatic enzymes compared to ZNPs+ATO-exposed rats. Additionally, GA markedly improved ZNPs+ATO-afforded liver tissue damage and apoptotic events.

CONCLUSION: Overall, GA oral dosing significantly mitigated the negative effects of ZNPs and ATO on the liver by improving the antioxidant defense system and controlling apoptotic changes.

Abd-Elhakim, Y. M., A. Behairy, M. M. M. Hashem, K. Abo-EL-Sooud, A. E. El-Metwally, B. A. Hassan, and H. A. Ali, "Toll-like receptors and nuclear factor kappa B signaling pathway involvement in hepatorenal oxidative damage induced by some food preservatives in rats.", Scientific reports, vol. 13, issue 1, pp. 5938, 2023. Abstracttoll_like__receptors.pdf

Chemical food preservatives are extensively found in various processed food products in the human environment. Hence, this study aimed to investigate the effect of long-term exposure to five food preservatives (potassium sorbate (PS), butylated hydroxyanisole (BHA), sodium benzoate (SB), calcium propionate (CP), and boric acid (BA)) on the liver and kidney in rats and the probable underlying mechanisms. For 90 days, sixty male albino rats were orally given either water (control), 0.09 mg/kg b.wt BHA, 4.5 mg/kg b.wt PS, 0.9 mg/kg b.wt SB, 0.16 mg/kg b.wt BA, or 0.18 mg/kg b.wt CP. Liver and kidney function tests were assessed. Hepatic and renal oxidative stress biomarkers were estimated. Histologic examination analysis of liver and kidney tissues was achieved. Toll-like receptors 2 and 4 (TLR-2 and TLR-4), tumor necrosis factor-alpha (TNF-α), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) mRNA expression levels were measured. The results revealed that long-term oral dosing of the five food preservatives resulted in significant increases in alkaline phosphatase, alanine transaminase, aspartate transaminase, urea, uric acid, and creatinine levels. There were significant reductions in hepatic and renal antioxidant enzymes, an increase in MDA concentrations, and pathological alterations in renal and hepatic tissues. The mRNA levels of TLR-4, TLR-2, NF-κB, and TNF-α were elevated in the food preservatives-exposed groups. Conclusively, the current findings revealed that long-term exposure to PS, BHA, SB, CP, and BA has a negative impact on liver and kidney function. Furthermore, these negative effects could be mediated via oxidative stress induction, inflammatory reactions, and cytokine production.

2022
Hashem, M. M., K. Abo-EL-Sooud, Y. M. Abd El-Hakim, Y. A. - H. Badr, A. E. El-Metwally, and A. Bahy-EL-Dien, "The impact of long-term oral exposure to low doses of acrylamide on the hematological indicators, immune functions, and splenic tissue architecture in rats.", International immunopharmacology, vol. 105, pp. 108568, 2022. Abstract

There is a global increase in daily dietary intake of acrylamide (ACR) owing to its presence in various foods. However, several toxicological issues are still unclear, particularly after oral exposure to low doses for long durations. As a result, the objective of this research was to investigate the effects of giving male Wistar rats two dosages of ACR (1 or 2 mg/kg b.wt.) via oral gavage once a day for 90 days on blood components, immune markers, and splenic tissue. The results revealed that leukopenia, lymphocytopenia, eosinophilia, and thrombocytopenia were all found to be ACR dose-dependent. In addition, ACR-treated rats had considerably higher IgG and IgM levels. Following ACR exposure, phagocytic activity, lysozyme, and nitric oxide levels were significantly reduced. In ACR-exposed rats, there was a significant reduction in lymphocyte proliferation but an increase in LDH activity. Both splenic tissue and bone marrow showed a variety of degenerative changes. There was a significant increase in CD4 and CD8 immunolabeling. Rats exposed to ACR at both levels showed a significant rise in comet variables. Overall, our findings suggested that long-term exposure to ACR could cause hematological disorders, DNA damage, and disturbances of immune functions.

Kumar, S., J. Saxena, V. K. Srivastava, S. Kaushik, H. Singh, K. Abo-EL-Sooud, M. M. Abdel-Daim, A. Jyoti, and R. Saluja, "The Interplay of Oxidative Stress and ROS Scavenging: Antioxidants as a Therapeutic Potential in Sepsis.", Vaccines, vol. 10, issue 10, 2022. Abstractvaccines-10-01575.pdf

Oxidative stress resulting from the disproportion of oxidants and antioxidants contributes to both physiological and pathological conditions in sepsis. To combat this, the antioxidant defense system comes into the picture, which contributes to limiting the amount of reactive oxygen species (ROS) leading to the reduction of oxidative stress. However, a strong relationship has been found between scavengers of ROS and antioxidants in preclinical in vitro and in vivo models. ROS is widely believed to cause human pathology most specifically in sepsis, where a small increase in ROS levels activates signaling pathways to initiate biological processes. An inclusive understanding of the effects of ROS scavenging in cellular antioxidant signaling is essentially lacking in sepsis. This review compiles the mechanisms of ROS scavenging as well as oxidative damage in sepsis, as well as antioxidants as a potent therapeutic. Direct interaction between ROS and cellular pathways greatly affects sepsis, but such interaction does not provide the explanation behind diverse biological outcomes. Animal models of sepsis and a number of clinical trials with septic patients exploring the efficiency of antioxidants in sepsis are reviewed. In line with this, both enzymatic and non-enzymatic antioxidants were effective, and results from recent studies are promising. The usage of these potent antioxidants in sepsis patients would greatly impact the field of medicine.

Behairy, A., M. M. Hashem, K. Abo-EL-Sooud, A. E. El-Metwally, B. A. Hassan, and Y. M. Abd-Elhakim, "Quercetin Abates Aluminum Trioxide Nanoparticles and Lead Acetate Induced Altered Sperm Quality, Testicular Oxidative Damage, and Sexual Hormones Disruption in Male Rats.", Antioxidants (Basel, Switzerland), vol. 11, issue 11, 2022. Abstractantioxidants-11-02133.pdf

This study examined the effects of exposure to lead acetate (PbAc) and/or aluminum trioxide nanoparticles (AlONPs) on testicular function. Additionally, the probable reproprotective effects of quercetin (QTN) against AlONPs and PbAc co-exposure in male Sprague Dawely rats were assessed. AlONPs (100 mg/kg b.wt.), PbAc (50 mg/kg b.wt.), and QTN (20 mg/kg b.wt.) were orally administered for 60 days. Then, spermiogram, histopathological examinations of the testis and accessory glands, and immunohistochemical detection of androgen receptors (AR) and tumor necrotic factor alpha (TNF-α) were achieved. Moreover, serum levels of male sex hormones and testicular levels of antioxidant indices were estimated. The results showed that AlONP and/or PbAc caused significant sperm abnormalities, testicular oxidative stress, and histopathological changes. Furthermore, serum testosterone, LH, and FSH levels significantly decreased, while estradiol levels significantly increased. The AlONPs and/or PbAc co-exposed group had more obvious disturbances. Furthermore, QTN co-administration significantly reversed the AlONPs and PbAc-induced testicular histopathological alterations, reduced antioxidant defenses, and altered AR and TNF-α immune expression in testicular tissues. Conclusively, AlONPs and/or PbAc evoked testicular dysfunction by inducing oxidative injury and inflammation. However, QTN oral dosing effectively mitigated the negative effects of AlONPs and PbAc by suppressing oxidative stress and inflammation and improving the antioxidant defense system.

2021
Ramsis, M. N., S. E. L. M. -Gammal, K. Abo-EL-Sooud, and G. A. Swielim, "Anatomical studies on the arterial blood supply of the pelvic limb of geese", Advances in Animal and Veterinary Sciences, vol. 9, issue 4, pp. 604-614, 2021. aavs_9_4_604-614.pdf
Atef, M., A. baker ELGendi, A. M. Amer, B. A. ElRazzk, K. Abo-EL-Sooud, and S. Ibrahim, "Antioxidant, hepatoprotective and in vitro cytotoxic activities of Cichorium intybus L. extract. ", Adv. Anim. Vet. Sci. , vol. 9, issue 1, pp. 137-142, 2021.
Abd-Elhakim, Y. M., M. M. Hashem, K. Abo-EL-Sooud, B. A. Hassan, K. M. Elbohi, and A. A. Al-Sagheer, "Effects of Co-Exposure of Nanoparticles and Metals on Different Organisms: A Review.", Toxics, vol. 9, issue 11, 2021. Abstract

Wide nanotechnology applications and the commercialization of consumer products containing engineered nanomaterials (ENMs) have increased the release of nanoparticles (NPs) to the environment. Titanium dioxide, aluminum oxide, zinc oxide, and silica NPs are widely implicated NPs in industrial, medicinal, and food products. Different types of pollutants usually co-exist in the environment. Heavy metals (HMs) are widely distributed pollutants that could potentially co-occur with NPs in the environment. Similar to what occurs with NPs, HMs accumulation in the environment results from anthropogenic activities, in addition to some natural sources. These pollutants remain in the environment for long periods and have an impact on several organisms through different routes of exposure in soil, water, and air. The impact on complex systems results from the interactions between NPs and HMs and the organisms. This review describes the outcomes of simultaneous exposure to the most commonly found ENMs and HMs, particularly on soil and aquatic organisms.

Motwadie, M. E., M. M. Hashem, K. Abo-EL-Sooud, Y. M. Abd-Elhakim, A. E. El-Metwally, and H. A. Ali, "Modulation of immune functions, inflammatory response, and cytokine production following long-term oral exposure to three food additives; thiabendazole, monosodium glutamate, and brilliant blue in rats.", International immunopharmacology, vol. 98, pp. 107902, 2021. Abstract

The food additives thiabendazole (TBZ), monosodium glutamate (MSG), and brilliant blue (BB) are commonly used in many daily-consumed food products worldwide. They are widely used in major agricultural and industrial applications. Yet, many of its toxicological aspects are still unclear, especially immune modulation. This research was therefore intended to investigate the effects of male Wistar rats' daily oral exposure for 90 days to TBZ (10 mg/kg b.wt), MSG (20 mg/kg b.wt), or BB (1.2 mg/kg b.wt) on the blood cells, immunity, and inflammatory indicators. The three tested food additives showed varying degrees of hematological alterations. Initially, megaloblastic anemia and thrombocytopenia were evident with the three tested food additives. At the same time, TBZ showed no significant changes in the leukogram element except eosinopenia. MSG induced leukopenia, lymphocytopenia, neutrophilia, and eosinophilia. BB evoked neutrophilia and lymphopenia. The immunoglobins M (IgM) and IgG were significantly reduced with the three tested food additives. In contrast, lysozyme and nitric oxide levels were elevated. A reduced considerably lymphocyte proliferation was detected with TBZ and MSG exposure without affecting the phagocytic activity. Various pathologic disturbances in splenic tissues have been detected. An obvious increase in CD4 but a lessening in CD8 immunolabeling was evident in TBZ and MSG groups. The cytokines, including interferon-gamma, tumor necrosis factor-alpha, and interleukin 1β, 6, 10, and 13, were significantly upregulated in the spleen of rats exposed to TBZ, MSG, and BB. These results concluded that TBZ, MSG, and BB negatively affect hematological parameters, innate and humoral immune functions together with inflammatory responses. TBZ achieved the maximal negative impacts followed by MSG and finally with BB. Given the prevalence of these food additives, TBZ and MSG should be limited to a minimal volume use, or natural food additives should be used instead.

2020
Abo-EL-Sooud, K., G. A. Swielim, S. M. EL-Gammal, and M. N. Ramsis, "Comparative Pharmacokinetics and bioavailability of marbofloxacin in geese (Anser Anser domesticus) after two sites of intramuscular administrations.", Journal of veterinary pharmacology and therapeutics, vol. 43, issue 4, pp. 313-318, 2020. Abstract

The pharmacokinetics of marbofloxacin (MAR) was compared in geese (Anser Anser domesticus) after single intravenous (IV) and intramuscular (IM) (thigh and pectoral muscles) administrations of 5 mg/kg. Serum concentrations of MAR were determined with high-performance liquid chromatography (HPLC) method. Serum MAR concentrations versus time were analyzed by a noncompartmental method. After IV administration, MAR showed high volume of distribution at steady state (V ) of 5.24 ± 1.08 L/kg. The serum body clearance (Cl) and elimination half-life (T λz) of MAR were 0.79 ± 0.07 L hr  kg and 6.94 ± 1.12 hr, respectively. The peak of MAR serum concentrations C achieved at one and 0.50 hr after thigh and pectoral IM sites of injections, respectively, were 1.20 and 0.91 μg/ml. Significant differences were found in the mean absorption time (MAT), the systemic bioavailability (F%), and elimination parameters of MAR between two sites of injections, indicating that the absorption was fairly slow and complete after thigh IM injection. The pharmacokinetics of MAR in geese diverged according to the site of IM injection following a parallel study design. We recommend the thigh muscle as IM site of injection to obtain maximum concentrations of the administered drug in geese.

Khattab, A. A., A. M. Tawfek, K. Abo-EL-Sooud, K. A. Ahmed, A. E. N. El-Gendy, and A. R. Ahmed, "Elettaria cardamomum essential oil rescues paracetamol-induced hepatorenal damage via modulating oxidative stress in rats.", Adv. Anim. Vet. Sci, vol. 8(S2), issue 24, pp. 33, 2020.
Abd-Elhakim, Y. M., M. M. M. Hashem, K. Abo-EL-Sooud, H. A. Ali, A. Anwar, A. E. El-Metwally, E. A. Mahmoud, and G. G. Moustafa, "Involvement of tumor necrosis factor-α, interferon gamma-γ, and interleukins 1β, 6, and 10 in immunosuppression due to long-term exposure to five common food preservatives in rats.", Gene, pp. 144590, 2020. Abstract

BACKGROUND: /Aims Food preservatives are abundant in many products in the human environment. However, little is known about the impact of many food preservatives on the immune system and the immune related genes. Hence, this study aimed to evaluate the effects of five widespread food preservatives, including butylated hydroxyanisole (BHA), potassium sorbate (PS), sodium benzoate (SB), boric acid (BA), and calcium propionate (CP), on haemato-immune functions.

METHOD: Sixty Sprague-Dawley rats were assigned to groups orally administered water (control), BHA (0.09 mg/kg), PS (4.5 mg/kg), SB (0.9 mg/kg), BA (0.16 mg/kg) or CP (0.18 mg/kg) for 90 consecutive days. Leukogram and erythrogram profiles were assessed. Nitric oxide and immunoglobulin levels together with phagocytic and lysozyme activities were estimated. Histologic examinations and histomorphometric analysis of splenic tissues were performed. Variations in the mRNA expression levels of tumour necrosis factor alpha (TNF-α), interferon gamma (IFNγ), interleukin (IL)-1β, IL-6, and IL-10 were assessed.

RESULTS: Anemic conditions, thrombocytopenia, leucocytopaenia simultaneous with lymphocytopaenia, monocytopenia, and esinopenia have been obvious following long term exposure to the tested food additives. Prominent exhaustion was noted in immunoglobulin and NO levels and in lysozyme and phagocytic activities. IFNγ, TNF-α, IL-1β, IL-6, and IL-10 were obviously upregulated in the groups exposed to food preservatives.

CONCLUSION: These results confirmed that continued exposure to high levels of BHA, PS, SB, BA, and CP has haematotoxic and immunotoxic effects. Furthermore, these adverse effects are mediated by cytokine production.

Hashem, M. M., K. Abo-EL-Sooud, Y. M. Abd-Elhakim, Y. A. - H. Badr, A. E. El-Metwally, and A. Bahy-EL-Dien, "The long-term oral exposure to titanium dioxide impaired immune functions and triggered cytotoxic and genotoxic impacts in rats.", Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), vol. 60, pp. 126473, 2020. Abstract

BACKGROUND: Titanium dioxide "TiO, E171″ is a widely used food additive that exists in various everyday food products all over the world together with vast applications in cosmetics and industry. However, many toxicological aspects particularly following oral exposure still unclear.

METHODS: Hence, this study was planned to examine the effect of oral exposure of male Wistar rats to two doses of TiO (20 or 40 mg/kg b.wt.) through oral gavage once daily for 90 consecutive days on the blood components, immunity, cytotoxic, and genotoxic indicators.

RESULTS: A dose-dependent leukopenia, eosinophilia, neutrophilia, and thrombocytopenia were noted. Also, the immunoglobins G (IgG) and IgM were significantly elevated in TiO treated rats. The phagocytic activities, lysozyme, nitric oxide, and immunoglobulin levels were significantly depleted following TiO exposure. A significantly reduced lymphocyte proliferation but elevated LDH activity was prominent in TiO treated rats. Different pathological perturbations were observed in both splenic tissue and bone marrow. A marked increase in CD4 and CD8 immunolabeling was evident. A significant increase in the comet variables was recorded in response to the exposure of rats to the increasing level of TiO at both levels.

CONCLUSION: Overall, these results indicated that TiO could induce hematotoxicity, genotoxic, and immunotoxic alterations with exposure for long durations.

Bahr, M., M. Amer, K. Abo-EL-Sooud, A. Abdallah, and O. El-Tookhy, "Preservation Techniques of Stem Cells Extracellular Vesicles: A Gate for manufacturing of clinical grade therapeutic-Extracellular Vesicles and long-term Clinical trials.", International Journal of Veterinary Science and Medicine, vol. 8, issue 1, pp. 1-8, 2020. preservation_techniques_of_stem_cells.pdf
2019
Hashem, M. M., Y. M. Abd-Elhakim, K. Abo-EL-Sooud, and M. M. E. Eleiwa, "Embryotoxic and Teratogenic Effects of Tartrazine in Rats.", Toxicological research, vol. 35, issue 1, pp. 75-81, 2019 Jan. Abstract

Tartrazine (TAZ) is one of the most commonly used artificial dyes for foods and drugs. We determined the effect of TAZ on fetal development by examining morphological, visceral, and skeletal malformations in rat fetuses following daily oral administration of TAZ to pregnant Wistar rats at the 6th-15th day of gestation. TAZ at 0.45 and 4.5 mg/kg induced 6.0 and 7.1% fetal resorptions, as well as 10.0 and 10.5% fetal mortality, respectively. Fetal body weight and length were significantly lower in the groups treated with TAZ at 0.45 (3.97 ± 0.21 g and 27.3 ± 0.54 mm, respectively) and 4.5 mg/kg (3.48 ± 0.15 g and 23.22 ± 1.02 mm, respectively) than in the control group (4.0 ± 0.15 g and 30.01 ± 0.42 mm, respectively). TAZ at 0.45 and 4.5 mg/kg induced hepatic damage (20 and 33.3%, respectively), dark brown pigmentation due to hemosiderin in the splenic parenchyma (16.7 and 21.7%, respectively), as well as destructed and necrotic renal tubules (16.7 and 26.7%, respectively) in the fetuses. Moreover, TAZ at 0.45 and 4.5 mg/kg caused one or more missing coccygeal vertebrae (20 and 40%, respectively), missing sternebrae (6 and 10%, respectively), missing hind limbs (24 and 4%, respectively), and irregular ribs (16 and 20, respectively) in the fetuses. We concluded that TAZ has embryotoxic and teratogenic potentials in rats.

Abo-EL-Sooud, K., M. M. Hashem, Y. M. Abd-Elhakim, G. M. Kamel, M. M. E. Eleiwa, and A. Q. Gab-Allaha, "Effect of sodium nitrite exposure on the immune responses against of rift valley fever vaccine in mice ", International Journal of Pharmacy and Pharmaceutical Sciences , vol. 119, issue 7, pp. 28-31, 2019.
Atef, M., Abo-Baker YI EL-Gendi, N. A. Afifi, K. Abo-EL-Sooud, and H. Y. El-Zorba, "The influence of flunixin on the elimination and milk residual patterns of oxytetracycline in dairy goats", Veterinarski Arhiv, vol. 89, issue 2, pp. 169-182, 2019.
Abd-Elhakim, Y. M., G. G. Moustafa, M. M. Hashem, H. A. Ali, K. Abo-EL-Sooud, and A. E. El-Metwally, "Influence of the long-term exposure to tartrazine and chlorophyll on the fibrogenic signalling pathway in liver and kidney of rats: the expression patterns of collagen 1-α, TGFβ-1, fibronectin, and caspase-3 genes.", Environmental science and pollution research international, vol. 26, issue 12, pp. 12368–12378, 2019. Abstract

Colouring agents are highly present in diverse products in the human environment. We aimed to elucidate the fibrogenic cascade triggered by the food dyes tartrazine and chlorophyll. Rats were orally given distilled water, tenfold of the acceptable daily intake of tartrazine, or chlorophyll for 90 consecutive days. Tartrazine-treated rats displayed a significant rise (p < 0.05) in the mRNA levels and immunohistochemical localization of the renal and hepatic fibrotic markers collagen 1-α, TGFβ-1, and fibronectin and the apoptotic marker caspase-3. Moreover, a significant increment (p < 0.05) in the levels of AST, ALP, creatinine, and urea was evident in both experimental groups but more significant differences were noticed in the tartrazine group. Furthermore, we found a marked increment in the MDA level and significant declines (p < 0.05) in the levels of the SOD, CAT, and GSH enzymes in the kidney and liver from tartrazine-treated rats. The histological investigation reinforced the aforementioned data, revealing hepatocytes with fibrous connective tissue proliferation, apoptotic hepatocytes and periportal fibrosis with tubular necrosis, and shrunken glomeruli and interstitial fibrous tissue proliferation. We concluded that, even at the exposure to high concentrations for long durations, chlorophyll exhibited a lower propensity to induce fibrosis, apoptosis, and histopathological perturbations than tartrazine.

2018
Abo-EL-Sooud, K., M. M. Hashem, Y. A. Badr, M. M. E. Eleiwa, A. Q. Gab-Allaha, Y. M. Abd-Elhakim, and A. Bahy-EL-Dien, "Assessment of hepato-renal damage and genotoxicity induced by long-term exposure to five permitted food additives in rats.", Environmental science and pollution research international, vol. 25, issue 26, pp. 26341-26350, 2018 Sep. Abstract

The present study assessed the long-term daily administration of benzoic acid (BA), potassium sorbate (PS), chlorophyll (CPL), tartrazine (TAZ), and butylated hydroxyanisole (BHA) on hepato-renal changes and DNA damage in rats. Animals were orally administered with the 10 times of the acceptable daily intake (ADI) from each tested substance daily for 60 consecutive days. Blood, liver, and kidney samples were collected to evaluate hematological, biochemical, histopathological, and genotoxic alterations. The extent of liver and kidney damage was evaluated by comet assay and histopathologically. Significant reduction of leukocyte numbers and lymphocytes % in CPL- and TAZ-treated rats. However, significant increases in platelet count in all treated groups after 60 days were detected. The levels of serum transaminases enzymes (ALT, AST), alkaline phosphatase (ALP), and creatinine were significantly increased in all treatments except with BHA group, but no substantial differences were found in urea after 60 days. Aside from BHA, results of DNA damage revealed significant increases in tailed nuclei, tail moment, DNA% in the tail, and tail length in liver and kidney at different degrees. Moreover, the histopathological figures of liver and kidneys affirmed destructive and degenerative changes. The study indicates that most of the tested food additives may provoke genotoxicity and hepato-nephropathy, which could be serious for human health. Therefore, it is necessary to be informed about the hazardous effects of food additives and more attention should be focused towards using natural substitutes.