Masoud Youssefi; Majid Eslami; Mohsen Karbalaei; Masoud Keikha; Kiarash Ghazvini
Abstract
Cancer is defined as uncontrolled cell division, which could spread or invade various tissues. There are more than 200 types of cancer, including breast, skin, lung, colon, and prostate cancer, and lymphoma, the symptoms and indications of which vary depending on the type of tissues. Cancer has several ...
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Cancer is defined as uncontrolled cell division, which could spread or invade various tissues. There are more than 200 types of cancer, including breast, skin, lung, colon, and prostate cancer, and lymphoma, the symptoms and indications of which vary depending on the type of tissues. Cancer has several treatments with different applications. For instance, chemotherapy, radiation therapy, surgery or their combination are common treatment modalities for cancer. However, a complete cure for cancer has not been achieved yet. On the other hand, novel drugs for cancer treatment are not efficient due to the ability of cancer cells to develop resistance against chemotherapeutic agents. Recently, natural compounds have been reported to improve the efficiency of cancer treatment. Polyunsaturated fatty acids (PUFAs) are natural compounds that could be used as dietary supplements in cancer patients. PUFAs are classified into two main categories, including n-3 and n-6 PUFAs. According to the literature, n-3 PUFAs exert protective effects against cancer through the induction of apoptotic pathways and suppressing cell proliferation, while n-6 PUFAs cause tumor formation by inducing cell growth and proliferation. Using PUFAs in combination with chemotherapeutic agents is considered to be an effective approach to the treatment of cancer patients through increasing cancer cell death. This review aimed to discuss the interactive effects of the structure and function of PUFAs on cancer and cell processes through various signaling pathways.
Masoud Keikha; mohsen Karbalaei Zadeh Babaki; Luiz Augusto Marcondes Fonseca; Jorge Casseb
Abstract
Human T-cell lymphotropic virus type I (HTLV-I) is a retrovirus, which is the causative agent of adult T-cell leukaemia (ATL) and HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Evidence suggests that the interaction of HTLV-1 with the cellular-immune system plays a key role in the ...
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Human T-cell lymphotropic virus type I (HTLV-I) is a retrovirus, which is the causative agent of adult T-cell leukaemia (ATL) and HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Evidence suggests that the interaction of HTLV-1 with the cellular-immune system plays a key role in the development of HAM/TSP. However, the main mechanism in this regard remains unknown. The present study aimed to review the HAM/TSP pathogenesis, current status of HTLV-1 in Iran, and available treatments for HTLV-1 infection.
Mohsen Karbalaei Zadeh Babaki; Mahdis Ghavidel; Hadi Farsiani; Kiarash Ghazvini
Abstract
Bacillus anthracis is an aerobic, gram-positive, and spore-forming Bacillus species. The most common form of anthrax infection is the cutaneous form. The infection usually develops several days after exposure to products of infected animals and manifest as black sore with severe swelling on the skin.A ...
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Bacillus anthracis is an aerobic, gram-positive, and spore-forming Bacillus species. The most common form of anthrax infection is the cutaneous form. The infection usually develops several days after exposure to products of infected animals and manifest as black sore with severe swelling on the skin.A 52-year-old female with a black and swollen lesion on her index finger presented to Ghaem Hospital, Mashhad, Iran, in October 2015. Biopsy and swab culture were performed immediately. Cutaneous anthrax was characterized by microscopic examination of B. anthracis spore using Gram staining. The patient was then treated with antibiotics after diagnosis.According to the reports of Provincial Health Center of Khorasan Razavi, northeast of Iran, no cases of anthrax have been reported in humans since 2013. There were neither occupational risk factors, nor any routine predisposing factors for acquiring anthrax in this woman. Although this patient is the first case reported with cutaneous anthrax since the past three years, two cases of sheep anthrax have been reported in Khorasan Razavi Province during 2013-2015. This patient had a history of contact with the skull of a slaughtered sheep. The patient was treated after making correct and rapid diagnosis and sufficient antibiotic therapy.