• 제목/요약/키워드: testicular

검색결과 524건 처리시간 0.028초

Enhanced Progression from Lung Adenoma to Adenocarcinoma in Progeny by Prozygotic Testicular X-ray Exposure of Mice

  • Kamino, Kenji;Son, Woo-Chan
    • 한국수의병리학회지
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    • 제3권2호
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    • pp.77-82
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    • 1999
  • Testicles of nine-week-old male CBA/J mice were X-ray irradiated (1 Gy or 2 Gy) and were mated one week later with untreated virgin 12-week-old females of the same strain. The 1-Gy offspring (88 males and 62 females), 2-Gy offspring (100 males and 93 females) and additional offs pring (83 males and 84 females) were treated once subcutaneously with 0.1 mg/g body weight of urethane at 6 weeks of age. These three groups of off offspring showed similar incidences of lung tumors in both sexes. Depending on the doses of paternal X-ray irradiation, increasing incidences of adenocarcinoma were observed in the male 1-Gy and 2-Gy offspring groups. An increased multiplicity of lung carcinomas was observed in the male 2-Gy progeny that was statistically significant when compared with the control group. The results indicate that prezygotic testicular X-ray exposure of patemal animals causes the shift of adenoma-carcinoma sequence towards malignancy in the progeny.

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Testosterone Propionate 투여로 인한 생쥐 고환(睾丸) Leydig Cell의 형태학적변화(形態學的變化)에 대한 전자현미경적연구(電子顯微鏡的硏究) (Electron Microscopic Studies on Testicular Leydig Cells of Mice Administered with Testosterone Propionate)

  • 이재현;이차수
    • 대한수의학회지
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    • 제15권2호
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    • pp.241-250
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    • 1975
  • The light and electron microscopic observations were carried out in order to know the morphological changes of the testicular Leydig cells in the mouse injected with testosterone propionate for a long period. The results obtained were as follows: With the light microscopic study, atrophy of the Leydig cells and larger sudanophilic lipid granules in the experimental group than normal were observed. 2. By the electron microscopic finding, the small spherical or oval mitochondria, large lipid droplets, a decrease in number of smooth endoplasmic reticutum and distended saccular or vacuolar smooth endoplasmic reticulum were observed in the experimental group. Membranous whorls with droplet increased in number and size in the experimental group.

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동결 보존된 고환 정자로 ICSI 시술 후 수정된 수정란의 이식에 의한 임신 1례 (A Case of Pregnancy from Embryos following ICSI with Frozen-Thawed Testicular Sperms)

  • 이우식;김종식;김현규;김영찬;박찬;김시영;고정재;차광열
    • Clinical and Experimental Reproductive Medicine
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    • 제25권1호
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    • pp.103-107
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    • 1998
  • This case report describes the pregnancy following the transfer of embryos generated from intracytoplasmic sperm injection (ICSI) using frozen-thawed sperms obtained by testicular sperm extraction (TESE) in patient with hypoplasia of vas deferens.

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피라미(Zacco platypus)의 정자형성과정에 관한 미세구조적 연구 (Ultrastructural Study on the Spermatogenesis of Pale Chub (Zacco platypus))

  • 조장현;류동석
    • Applied Microscopy
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    • 제28권2호
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    • pp.181-191
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    • 1998
  • The spermatogenesis of pale chub (Zacco platypus) was investigated morphologically. The testis of pale chub contained numerous testicular sacs. These testicular sacs were bounded on neighboring sacs by single layer of squamous cells. Also, differentiated sperms were filled in the sacs. In the stage of spermatogonium, the germ cells had a large nucleus and a distinct nucleolus, and mitochondrial development was prominent. In the primary and secondary spermatogonia, these cells had a round electron-dense nucleus, reduced cytoplasm, and mitochondria were congregated in the side of cytoplasm. The highly condensed chromatin of sperms was electron-dense, the acrosome was not found in the head of the sperm and a motile flagellum consisted of an axoneme with a typical 9+2 pattern of microtubules.

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Tributyltin Induces Orphan Nuclear Receptor Nur77 Gene Expression and Cell Death in Testicular cell line (TM3)

  • Lee, Kyung-Hee;Lee, Kyung-Jin;Bin, Im-Wook;Park, Hueng-Sik;Lee, Jong-Bin
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Molecular and Cellular Response to Toxic Substances
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    • pp.168-168
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    • 2002
  • A clear association between occupational tributyltin (TBT) exposure and testicular cell line, TM3 has been observed in mouse. In the present study, we have investigated cytotoxic effects of TBT on Significant cytolethality was observed in TM3 cells in a time- and concentration-dependent manner when measured by MTT assays. (omitted)

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Metachronous extranodal natural killer/T-cell lymphoma of nasal type and primary testicular lymphoma

  • Maeng, Young-In;Lee, Sun-Jae
    • Journal of Yeungnam Medical Science
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    • 제38권3호
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    • pp.231-234
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    • 2021
  • We report a rare case of metachronous lymphoma with two distinct cell lineages in a 75-year-old man. The patient complained about having nasal obstruction for 2 years and extranodal natural killer (NK)/T-cell lymphoma of the nasal type was diagnosed from a biopsy. The immunohistochemical staining for CD56 and in situ hybridization for Epstein-Barr virus (EBV)-encoded small RNA (EBER-ISH) were positive and the tumor cells were negative for CD20. After 13 months of concurrent chemoradiotherapy, the patient presented with swelling of the left testis. Positron emission tomography scan detected an abnormal uptake in the testis. A diffuse large B-cell lymphoma, not otherwise specified, was diagnosed from subsequent radical orchiectomy. The immunohistochemical staining revealed to be positive for CD20, BCL2, BCL6, and MYC and negative for CD10 and EBER-ISH.

Anti-inflammatory properties of broccoli sprout extract in a lipopolysaccharide-induced testicular dysfunction

  • Hyun-Jung Park
    • 한국동물생명공학회지
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    • 제38권1호
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    • pp.17-25
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    • 2023
  • Brassica oleracea var. italica (broccoli) is a type of cabbage that contains vitamins, minerals, and phytochemicals. Consequently, it is used as a potential nutraceutical source for improving human health by reducing oxidative stress and inflammatory responses. Here, the effects of broccoli sprout extract (BSE) on the inflammatory response were investigated through lipopolysaccharide (LPS)-induced inflammatory mouse models. First, we found that the BSE obviously reduce NO production in RAW 264.7 cells in response to LPS stimulation in in vitro study. Pretreatment with BSE administration improved sperm motility and testicular cell survivability in LPS-induced endotoxemic mice. Additionally, BSE treatment decreased the levels of the pro-inflammatory cytokines TNF-a, IL-1β, and IL-6, and COX-2 in testis of LPS-induced endotoxemic mice models. In conclusion, BSE could be a potential nutraceutical for preventing the excessive immune related infertility.