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Voltammetric Studies of Cu-Adriblastina Complex and its Effect on ssDNA-Adriblastina Interaction at In Situ Mercury Film Electrode

  • D.Abd El Hady;M.Ibrahim Abdel Hamid;M.Mahmoud Sellem;N.Abo E Maali
    • Archives of Pharmacal Research
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    • v.27 no.11
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    • pp.1161-1167
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    • 2004
  • Adriblastina, a cancerostatic anthracycline antibiotic, causes considerable oxidative damage to DNA molecules. The interaction of this compound with DNA was investigated using Osteryoung square wave stripping voltammetry (OSWSV) and cyclic voltammetry (CV) at an in situ mercury film electrode. It was found that the equilibrium constant of the bonded oxidized form of the drug was 63 times bigger more important than that of the bonded reduced form. Copper forms 1 metal: 2 drug stoichiometry complex which is highly stable compared to ssDNA-drug interaction and consequently inhibited the drug biochemical damaging effects. Copper complex offered sub-nanogram determination of adriblastina in aqueous and urine media.

Hepatoprotective Constituents of Cudrania tricuspidata

  • Tian Yu-Hua;Kim Hyun-Chul;Cui Jiong-Mo;Kim Youn-Chul
    • Archives of Pharmacal Research
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    • v.28 no.1
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    • pp.44-48
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    • 2005
  • Phytochemical investigation of the MeOH extract of the root barks of Cudrania tricuspidata Bureau (Moraceae), as guided by hepatoprotective activity in vitro, furnished four isoprenylated xanthones, cudratricusxanthone A (1), cudraxanthone L (2), cudratricusxanthone E (3), and macluraxanthone B (4). All of these compounds showed the significant hepatoprotective effect on tacrine-induced cytotoxicity in human liver-derived Hep G2 cells. Compounds 1, 2, and 4 also exhibited the significant hepatoprotective effect on nitrofurantoin-induced cytotoxicity in human liver-derived Hep G2 cells.

Thienobenzothiopyranones 111-New 4H-thieno[2,3-b][1]benzothiopyran-4-ones Carrying Different Heterocyclic Moieties of Expected Pharmacological Interest

  • El-Subbagh, H.I.;El-Emam, A.A.;El-Ashmawy, M.B.;Shehata, I.A.
    • Archives of Pharmacal Research
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    • v.13 no.1
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    • pp.24-27
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    • 1990
  • Reaction of 2-formyl-4H-thieno [2, 3-b] benzothiopyran-4-one (1) with different heterocyclic amines afforded the corresponding Schiff's bases (2-4). Diethyl malonate, ethyl cyanoacetate and malononitrile were reached with 1 to afford compounds 5, 7 and 8, respectively. Compound 5 was cyclized to the pyrazolidin-3, 4-dione (6) by the action of hydrazine hydrate, whereas compound 7 was utilized for the synthesis of the thiazolin-4 one derivatives (9-13).

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The Activity of Dopamine $\beta$-Hydroxylase of Central Nervous System in Genetically Epilepsy Prone Rats

  • Park, Youn-Joo;Chung, Hye-Joo;Lee, Kwang-Ho;Ko, Kwang-Ho
    • Archives of Pharmacal Research
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    • v.14 no.2
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    • pp.172-175
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    • 1991
  • Abnormality in the central noradrenergic system may be related to the seizure prone state in the genetically epilepsy prone rats (GEPR). The present work deals with the characterization of the deficit in noradrenergic system if susceptitibility and intensity of seizure are dependent on central noradrenregic activities by comparing the activities of dopamine $\beta$-hydroxylase (DBH) which hydroxylates dopamine into noradrenaline. DBH activities were measured in 5 areas of brain of normal rats, native GEPR and severe GEPR. The results suggest that lower DBH activities in the midbrain of GEPRs may positively be coupled to the susceptibility to seizure, whereas the same characteristics of the native or severe GEPR are not neccessarily in parallel with the intensity of seizure.

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Approach to Frontal Sinus Outflow Tract Injury

  • Kim, Yong Hyun;Kim, Baek-Kyu
    • Archives of Craniofacial Surgery
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    • v.18 no.1
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    • pp.1-4
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    • 2017
  • Frontal sinus outflow tract (FSOT) injury may occur in cases of frontal sinus fractures and nasoethmoid orbital fractures. Since the FSOT is lined with mucosa that is responsible for the path from the frontal sinus to the nasal cavity, an untreated injury may lead to complications such as mucocele formation or chronic frontal sinusitis. Therefore, evaluation of FSOT is of clinical significance, with FSOT being diagnosed mostly by computed tomography or intraoperative dye. Several options are available to surgeons when treating FSOT injury, and they need to be familiar with these options to take the proper treatment measures in order to follow the treatment principle for FSOT, which is a safe sinus, and to reduce complications. This paper aimed to examine the surrounding anatomy, diagnosis, and treatment of FSOT.

Solitary Piloleiomyoma in the Scalp

  • Kim, Dong Hwi;Lee, Ji Sung;Kim, Jean A;Lee, Jung Ho
    • Archives of Craniofacial Surgery
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    • v.18 no.1
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    • pp.62-64
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    • 2017
  • Cutaneous leiomyomas can be classified into three types according to the site of origin: piloleiomyoma, angioleiomyoma, and dartoic (genital) leiomyoma. It might be expected that leiomyomas are commonly found on the scalp because there are many arrector pili muscles and vessels. However, leiomyomas are actually rarely reported in the scalp. Recently, we observed a case of cutaneous leiomyoma in the scalp and present our experience along with a literature review.

Panfacial Bone Fracture and Medial to Lateral Approach

  • Kim, Jiye;Choi, Jin-Hee;Chung, Yoon Kyu;Kim, Sug Won
    • Archives of Craniofacial Surgery
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    • v.17 no.4
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    • pp.181-185
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    • 2016
  • Panfacial bone fracture is challenging. Even experienced surgeons find restoration of original facial architecture difficult because of the severe degree of fragmentation and loss of reference segments that could guide the start of facial reconstruction. To restore the facial contour, surgeons usually follow a general sequence for panfacial bone reduction. Among the sequences, the bottom-to-top and outside-in sequence is reported to be the most widely used in recent publications. However, a single sequence cannot be applied to all cases of panfacial fractures because of the variations in panfacial bone fracture patterns. In this article, we intend to find the reference and discuss the efficacy of inside-out sequence in facial bone fracture reconstruction.

Contouring of zygomatic soft tissue using bilateral free groin flaps in a Treacher Collins syndrome patient

  • Heo, Jae-Woo;Jin, Ung Sik
    • Archives of Craniofacial Surgery
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    • v.19 no.2
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    • pp.131-134
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    • 2018
  • Treacher Collins syndrome is a congenital disorder that is characterized with a wide range of cranio-facial deformities. Zygomatic hypoplasia or aplasia is one of the key features, and surgical reconstruction of the consequent depression on the zygomatic area is deemed necessary by many patients. Various surgical options are available-injectables, alloplastic materials, autologous grafting, and autogenous tissue transfer. It depends on each patient which technique to use. Here, we present a clinical case, in which bilateral free groin flaps were adopted in attempt to resolve the remnant aesthetic deformity associated with zygomatic depression, despite a series of previous surgical efforts, in a 25-year-old Treacher Collins syndrome male patient.

Minimally Invasive Excision of Epidermal Cysts through a Small Hole Made by a $CO_2$ Laser

  • Song, Seung Wook;Burm, Jin Sik;Yang, Won Yong;Kang, Sang Yoon
    • Archives of Plastic Surgery
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    • v.41 no.1
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    • pp.85-88
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    • 2014
  • To improve the cosmetic results of removing epidermal cysts, minimally invasive methods have been proposed. We proposed a new minimally invasive method that completely removes a cyst through a small hole made by a $CO_2$ laser. Twenty-five patients with epidermal cysts, which were 0.5 to 1.5 cm in diameter, non-inflamed, and freely movable, were treated. All of the patients were satisfied with the cosmetic results. This method is simple and results in minimal scarring and low recurrence rates without complications.

Robotically Assisted Microsurgery: Development of Basic Skills Course

  • Liverneaux, Philippe Andre;Hendriks, Sarah;Selber, Jesse C.;Parekattil, Sijo J.
    • Archives of Plastic Surgery
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    • v.40 no.4
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    • pp.320-326
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    • 2013
  • Robotically assisted microsurgery or telemicrosurgery is a new technique using robotic telemanipulators. This allows for the addition of optical magnification (which defines conventional microsurgery) to robotic instrument arms to allow the microsurgeon to perform complex microsurgical procedures. There are several possible applications for this platform in various microsurgical disciplines. Since 2009, basic skills training courses have been organized by the Robotic Assisted Microsurgical and Endoscopic Society. These basic courses are performed on training models in five levels of increasing complexity. This paper reviews the current state of the art in robotically asisted microsurgical training.