Cancer is a widespread disease of various types worldwide that affects many people. Today, titanium dioxide nanoparticles have substantial therapeutic applications. We investigated how harmful titanium dioxide is to breast cancer cells. MCF-7 cancer cells and HFF cell lines were cultured. The survival of cells exposed to different amounts of titanium dioxide nanoparticles was tested. The examined concentrations were 25, 50, 100, and 200 μg/ml. The survival rate was measured after 48 and 72 hours and IC50 was determined. We found that the highest toxicity occured  while MCF-7 and HFF cells were exposed to 200 μg/ml of titanium dioxide. Apoptosis in MCF-7 and HFF cells emerged as shown with Annexin V-PI staining and flow cytometry. Under a microscope, it was found that titanium dioxide nanoparticles could be harmful in specific amounts. At a dose of 200 μg/ml, after 48 and 72 hours of treatment, MCF-7 and HFF cells were affected. The mitochondrial membrane broke when breast cells were exposed to titanium dioxide nanoparticles. The matrix leaked into the cytoplasm, and the rough endoplasmic reticulum swelled. These observations occurred after 72 hours of treatment with a concentration of 200 µg/ml. Considering the acquired effects, titanium dioxide nanoparticles may be advocated as potential medicinal candidates for pharmaceutical purposes even though further research is required.

Minimizing stress during the capture of wild animals is crucial for reducing morbidity and mortality. Oral premedicants have the potential to reduce stress during handling and ease the subsequent administration of anaesthetic drugs. The efficacy of premedication with chlordiazepoxide or haloperidol independently prior to midazolam-ketamine anaesthesia was evaluated in 12 male Bonnet Macaques. Animals were randomly divided into two groups of six animals each (n=6). Animals in Group I were administered chlordiazepoxide (10mg/kg) and animals in Group II were administered haloperidol (1mg/kg) orally, respectively. Temperament of each animal was recorded prior to premedication. Behavioural responses after pre-medication were assessed for 4 hours. Glucose and cortisol levels were assessed in venous blood samples collected after the induction of anaesthesia. Sedation was achieved in both groups of animals whereas the quality of sedation was comparatively better in Group II. Haloperidol-premedicated animals were easy to handle, but increased cortisol and glucose levels were recorded. Pre-medication with chlordiazepoxide and haloperidol produced optimum sedation to handle the Bonnet Macaques for inducing anaesthesia.

The relationship between exposures to Electromagnetic field (EMF) and human health is more in focus. Some studies showed the possible relation between exposure to EMF and cancer. The thyroid gland is one of the most exposed and vital organ and may be a target for any type of electromagnetic radiation; therefore, we studied histopathological effects of electromagnetic field (EMF) on the thyroid gland of rat. In this research, 35 healthy rats were used. The animals were divided to five groups, and then all animals were exposed to 2100MHz (4G) frequency for 0, 15, 60, 120, 180 min every day for a period of 70 days. The animals were euthanized by removing of blood from the heart then tissue samples were prepared from thyroid gland and stained with hematoxylin and eosin (H&E) and Mason trichrome (MT). Stereological studies were done by the Cavalier’s principle. Following the EMF exposure, a significant decrease (p < 0.05) in the diameter of the thyroid follicles, heights of epithelial follicles and thyroid follicles volume were recorded in 180 min exposure groups.In the EMF exposure groups (120 and 180 min) histopathological effect observed include follicles with decreased colloid, congestion and increase of connective tissue. We also observed formation of apoptotic body that infiltrated inside of follicle and follicular cells with condensed nuclei under the exposure of EMF for120 and 180 min.We concluded that exposure of EMF (4G) for over 120 min for 70 consecutive days has histopathological and stereological effects in thyroid gland in rats.

Avian orthopedic issues, particularly fractures, pose significant challenges due to birds' unique skeletal anatomy. Their bones, including the humerus (upper wing bone), are often pneumatic (air-filled) and fragile, making fracture management complex. Traditional methods, such as intermedullary pins and plates offer some solutions but have limitations. This study investigated the efficacy of two pin materials for stabilizing humerus fractures in pigeons: Steinman pins (commonly used in veterinary orthopedics) and polymethyl methacrylate (PMMA) pins. We created controlled fractures in the humerus of thirty young adult pigeons. These fractures were then stabilized with either Steinman pins or PMMA pins. Radiographic examinations and histological analysis were performed 2, 4, and 6 weeks post-surgery to assess bone healing progress in both groups. The findings revealed comparable healing outcomes between the two pin types, suggesting that PMMA pins could be a viable alternative for stabilizing fractures in birds, offering the additional benefit of sparing them a second surgery for pin removal.

Pain is a severe symptom of many diseases, with an increasing percentage of people manifesting various types of pain. Medicinal plants provide analgesic potential with little toxicity. We performed this experiment to compare the analgesic activities of Lawsonia inermis, Waltheria indica, Moringa oleifera, and Nigella sativa in Wistar rats using writhing and paw lick responses. We grouped 21 adult female rats into seven groups (n=3), including uninduced and untreated rats (group 1), induced untreated rats (group 2), rats treated with Lawsonia inermis at 200 mg/kg (group 3), rats treated with Waltheria indica at 200 mg/kg (group 4), rats treated with Nigella sativa at 200 mg/kg (group 5), rats treated with Moringa oleifera at 200 mg/kg (group 6), and rats treated with diclofenac at 10 mg/kg (group 7). We dosed rats for 14 days after inducing the pain. Phytochemical screening showed that methanolic extracts of Lawsonia inermis, Moringa oleifera, and ethanolic extract of Waltheria indica contain: Alkaloid, saponin, steroid, tannin, flavonoid, phenols, terpene, and glycosides. The rate of weight gain in rats treated with M. oleifera and W. indica was 7%, and with diclofenac was 9% compared to the untreated control. L. inermis and N. sativa possessed a weight gain of 3% and 2%, respectively. All the extracts exhibited analgesic activities by significantly reducing the number of lick and writh in the order of Lawsonia inermis, Nigella sativa, Moringa oleifera, and Waltheria indica.This study concluded that Lawsonia inermis possess significant analgesic activities compared to other plants and the standard drug (diclofenac).

Considering the beneficial effects of Apium graveolens L. (Celery) on the nervous system, this study elucidates the protective effect of CEO on the experimental model of cuprizone-induced MS in male C57BL/6 mice. Frothy mice were allocated into four experimental groups: control, cuprizone (chew pellet containing 0.2 %CPZ), CEO (800 mg/kg), and CPZ+CEO. Animals received treatments based on their groups for 5 weeks. Finally, reflexive motor behavior and serum antioxidant levels were determined. Based on the findings, ambulation score, hind-limb suspension, front limb suspension, and grip strength significantly decreed in the mice treated with CPZ (p < 0.05). Hind limb foot angle, surface rights, and negative geotaxis significantly increased in the animals treated with CPZ (p < 0.05). Co-administration of CPZ+CEO significantly reduced the adverse effects of CPZ on ambulation score, surface righting, hind limb suspension, grip strength, and negative geotaxis (p < 0.05). Co-administration of CPZ+CEO significantly diminished the adverse effects of CPZ on the number of crosses in the open field test and duration on the rotarod (p < 0.05). Serum MDA activity increased while GPx, SOD, and TAS decreased in the mice treated with CPZ (p < 0.05). Co-administration of CPZ+CEO significantly reduced the adverse effects of CPZ on serum antioxidant levels (p < 0.05). These results suggested the protective effect of CEO against CPZ-induced MS mediated by its antioxidant activity.

Cancer immunotherapy emerged as a novel therapeutic approach to destroy tumor cells, and it has grown toward clinical transition following successful fundamental research and clinical trials. Immunotherapy by efficacious adjuvants is critical for increasing protective immune responses against infectious diseases and cancers. STING and TLR9 agonists are interesting candidates for novel immunotherapies of cancers. In this study, the antitumoral effects of ADU-S100, as a potent STING agonist, and CpG ODN1826, as a TLR9 agonist, in single and combined forms in CT-26 colon adenocarcinoma model were evaluated. This model was induced in female BALB/c mice which were divided into five groups treated with PBS, ADU-S100 (20 and 40 µg), CpG ODN (40 µg), and ADU-S100 (20 µg)+CpG ODN (20 µg). The tumor volumes and weights of mice were measured every other day. On the 30th day, the tumor, spleen, and liver tissues of mice were isolated for histopathological assessment. Hematological analysis was performed on heart blood. Intratumoral injection of agonists induced significant tumor suppression in all treatment groups with profound effect in the combination group that received half concentration of single form. Moreover, the histopathological analysis of tumor tissues showed the presence of apoptotic and inflammatory cells and increased the number of lymphocytes in the blood samples of the treatment groups indicating the effective role of these agonists in clearing the tumor. Therefore, a such synergy of adjuvants may have an effective role in cancer immunotherapy and offer new perspectives on the combination of agonists that trigger innate immune sensors during malignancy.

Limited data is available on the prevalence of extended-spectrum beta-lactamase (ESBL) genes in Shiga toxin-producing Escherichia coli (STEC) isolates of ruminant origin. This study determined the molecular prevalence of ESBL-encoding genes (blaCTX-M, blaTEM, blaSHV and blaOXA) and antimicrobial-resistance (AMR) of 58 STEC isolates recovered from cattle (n= 32), sheep and goats (n= 26). In the current study, ESBL genes were identified by the molecular technique, while phenotypic AMR against six antibiotics (amoxicillin-clavulanic acid, tetracycline, neomycin, florfenicol, enrofloxacin and sulfamethoxazole-trimethoprim) were tested by disc diffusion method. Phylogenetic groups were also determined by a PCR scheme. Isolates were categorized into five phylogroups (A, B1, C, D and E) and B1 was the most prevalent phylogenetic group (43; 74.1%). Statistical analysis revealed significant association between phylogroup D and small ruminants (sheep and goats, p= 0.014). Moreover, the highest rates of antimicrobial resistance were related to tetracycline (25.9%) and neomycin (22.4%). Resistant isolates to tetracycline (p= 0.001), trimethoprim-sulfamethoxazole (p= 0.013) and neomycin (p= 0.000) were significantly prevalent among strains recovered from cattle. In addition, the majority of MDR strains were also had a significant distribution among cattle isolates (p= 0.001). In the current study, prevalence of ESBL positive STEC was 12.06% (7/58). Genes blaCTX-M and blaTEM were detected separately and in combination in bovine isolates. However, only one STEC strain of small ruminants harbored blaTEM. In conclusion, it seems that cattle isolates are notable sources of different AMR traits which could be a threat to veterinary sections, public health and food hygiene, in particular.

Uterine horn intussusception has rarely been reported in bitches. However, the pathogenesis is not entirely clear and the incidence of uterine intussusception in bitches is unknown. This disorder occurs during the postpartum period and is a challenging clinical condition in terms of presentation, diagnosis, and management. In this report, a case of uterine horn intussusception is described in a four-year-old female Chihuahua bitch, which presented with abdominal pain, lethargy, anorexia, tremors, recumbency, and ongoing reddish vaginal discharge 20 days after whelping two pups. All the hematological and biochemical test results were within normal ranges except for a decreased calcium level. Ultrasonographic examination revealed the multilayered appearance of the uterine wall. The midline laparotomy confirmed the invagination of a proximal segment of the uterine horn into its distal segment near the uterine body. Ovariohysterectomy was performed as the recommended treatment. This case highlights the importance of assessing abdominal pain to avoid delay in diagnosis and management. Moreover, uterine intussusception should be considered as a differential diagnosis in bitches with the symptoms of abdominal pain during the postpartum period.

During storage at low temperatures, the spermatozoa quality changes due to cold shock and free radicals. Diluent supplementation with antioxidants is an effort to maintain the quality of spermatozoa during storage. This study aimed to evaluate the α-tocopherol effect in CEP extender on sperm quality, membrane integrity, and lipid peroxidation during storage at 4°C-5°C. This was a laboratory experiment that compared the use of 2 mM of α-tocopherol in CEP with no addition of α-tocopherol (as control) in five bulls. Semen was collected from Brahman bulls, diluted in CEP with and without α-tocopherol, and stored at 4°C-5°C. Sperm motility and viability were investigated by a light microscope at a ×400 magnification using Eosin-Nigrosin staining. Moreover, membrane integrity was evaluated by lipid peroxidation using the MDA assay and hypoosmotic swelling test. The sperm motility, viability, and membrane integrity were higher in CEP with α-tocopherol. Lipid peroxidation was significantly different between the treatment and control groups. The α-tocopherol supplementation in the diluent CEP could maintain the spermatozoa quality during storage at 4°C-5°C.